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  • What are the features of air cooled screw chillers? Sep 30, 2025
    The air cooled screw chiller, a critical component in the refrigeration industry, stands out for its unique design and advanced technology. The air cooled screw chiller offers significant advantages in industrial production and commercial sectors. Below are the key features of the air-cooled screw chiller.   1. High-Efficiency Cooling Equipped with a screw compressor, the air cooled screw chiller uses a rotor structure that enables the refrigerant gas to be compressed efficiently and smoothly. It has a large compression ratio and a broad range of cooling capacity, making it suitable for medium to large-scale cooling needs. The screw chiller can quickly and steadily provide low-temperature cooling, meeting the requirements of various processes and spaces. Hengde has optimized the design of its screw compressors, choosing imported semi-hermetic twin-screw compressors. Compared to traditional rotary compressors, these offer high efficiency, quiet operation, simple operation, and long service life.    2. Air-Cooled Heat Exchange, No Water Source Required Unlike water cooled screw chillers, air cooled screw chillers use air as the heat exchange medium. A fan drives the airflow through the condenser, enabling the refrigerant to exchange heat with the external air. This feature eliminates the need for a complex cooling water system, making installation and use more convenient, especially in areas where water is scarce or where it is difficult to install water cooling pipes, such as remote industrial plants or commercial buildings in water-deficient regions. Hengde has innovated the design of the air ducts, employing high-efficiency, low-noise fans and optimized heat exchange fins, ensuring effective heat dissipation while reducing noise, thus providing users with a quieter and more comfortable environment.   3. Easy Installation With a compact overall structure and small footprint, the air-cooled screw chiller doesn’t require specialized cooling towers, water pumps, or water piping systems. Once the unit arrives at the site, it only needs simple positioning and electrical connections before being quickly put into operation. This greatly reduces installation time, costs, and engineering complexity. Hengde’s air-cooled screw chillers undergo strict pre-commissioning before leaving the factory to ensure the reliability and stability of all components. The company also provides detailed installation manuals and professional technical support, making it easy even for first-time users to install and start the unit.   4. Stable and Reliable Operation The unit uses internationally renowned refrigeration components to ensure quality and operational stability. The evaporator and condenser are made with the latest high-efficiency spiral heat exchange copper tubes, which have a high heat transfer coefficient, ensuring excellent cooling performance. The air-cooled chiller is controlled by a microcomputer programmable controller, and its compressor features a multi-stage energy adjustment system that precisely controls the matching of cooling capacity and load in real-time.   5. Convenient Maintenance The components of the air-cooled screw chiller are logically arranged, making them easy for maintenance personnel to access and operate. Major components, such as the compressor, condenser, and evaporator, have independent service spaces, making routine inspections, cleaning, and maintenance easier. Additionally, the intelligent control system can send fault alerts, helping maintenance personnel quickly identify and resolve issues, reducing maintenance difficulty and costs. Hengde's screw chillers feature independent refrigeration circuits that can be maintained and repaired separately without affecting the operation of the entire unit. The professional after-sales service team is always ready to respond to maintenance needs, ensuring the unit operates at its best.   6. Energy-Efficient and Environmentally Friendly With continuous technological advancements, modern air-cooled screw chillers incorporate high-efficiency heat exchangers and energy-saving compressors, improving energy utilization and reducing energy consumption. Their air-cooled heat exchange system also avoids environmental pollution caused by cooling water discharge, aligning with current trends in energy conservation and environmental protection. Hengde actively responds to national energy-saving and environmental protection policies by exploring and applying new energy-efficient materials and technologies during product development. As a result, Hengde’s air-cooled screw chillers achieve industry-leading energy efficiency, helping customers reduce operational costs while contributing positively to environmental conservation.   With features such as high-efficiency cooling, easy installation, stable operation, convenient maintenance, and energy efficiency, the air-cooled screw chiller is an ideal choice for refrigeration needs across various industries. Hengde, known for its technological innovation, product quality, and exceptional after-sales service, has become a trusted choice for customers when selecting air-cooled screw chillers. The company provides reliable cooling solutions that support production and everyday life across diverse sectors.   Choose Hengde, Choose Perfect Air Cooled Screw Chillers!
  • Water Quality Requirements for Industrial Water Cooled Chillers Sep 11, 2025
    Water cooled chillers are essential equipment in the refrigeration industry, widely used in industrial production and commercial buildings. Water chillers are primarily composed of a compressor, condenser, evaporator, and expansion valve, working together in a refrigeration cycle to transfer heat and achieve cooling effects. In industrial production, water-cooled chillers precisely control process temperatures; in commercial buildings, they create a comfortable indoor environment.   However, the stable operation of a water-cooled chiller is closely related to water quality. Proper water quality is crucial for its efficient operation and extended lifespan. 1. pH Level The ideal pH range for water is between 6.5 and 8.5. Water with a pH below 6.5 is acidic and can corrode the chiller’s metal components. Water with a pH above 8.5 is alkaline and can lead to scaling, which affects the chiller's performance.   2. Water Hardness Water hardness is another critical factor. The total hardness should not exceed 200mg/L (calculated as calcium carbonate). High hardness levels can lead to the formation of scale, reducing cooling efficiency, increasing energy consumption, and even causing blockages in the pipes.   3. Turbidity Turbidity should be kept below 5 NTU. Higher turbidity can cause suspended particles to wear down equipment, clog filters, and reduce heat exchange efficiency.   4. Microorganisms Microbial content must also be carefully monitored. Excessive microbial growth can result in biological slime buildup, which corrodes equipment, decreases heat exchange efficiency, and causes blockages in pipes.   High quality water is crucial for the optimal performance of a water cooled chiller. Hengde, with its extensive experience in refrigeration equipment development and production, offers water cooled chillers that not only deliver excellent cooling performance but also consider water quality compatibility. We provide comprehensive water quality treatment advice and equipment maintenance plans, helping industries meet their cooling needs efficiently and reliably. Hengde has earned a strong reputation in the refrigeration market for its high-quality products and services.   Choose Hengde, Choose Perfect Chillers!
  • How to Properly Handle Excess Refrigerant in Chillers: A Step-by-Step Guide Aug 22, 2025
    In the daily operation and maintenance of industrial chillers, various issues may arise. One common problem is excessive refrigerant charge, which not only affects the efficiency of the industrial chiller but can also lead to equipment malfunctions, increased energy consumption, and higher maintenance costs. So, what should be done when it is determined that a industrial chiller has been overcharged with refrigerant? In this article, we’ll provide a detailed guide on how to handle this issue properly.   Step 1: Confirm the Excess Refrigerant To determine if the industrial chiller has an excessive amount of refrigerant, use a pressure gauge to check the high and low pressures. Once confirmed, turn off the industrial chiller’s power to ensure safe operation and prevent any accidental restarts during the process.   Step 2: Wear Protective Equipment Before starting, make sure to wear protective gloves, goggles, and other safety gear to avoid refrigerant contact with your skin and eyes. Additionally, inspect the surrounding area for any potential fire hazards and ensure good ventilation in the operating environment.   Step 3: Release the Excess Refrigerant To safely release the refrigerant, specialized tools and techniques are required. For example, using recovery equipment, you can transfer the excess refrigerant into a storage container. During the refrigerant release process, it’s crucial to follow environmental regulations to avoid releasing refrigerants directly into the atmosphere, which could contribute to environmental pollution. Also, monitor system parameters such as pressure and temperature to determine when the refrigerant charge reaches the correct level. When the system pressure is within the normal operating range, it indicates that the refrigerant has been properly adjusted, and you can stop the recovery process.   Step 4: Restart the Chiller and Monitor Performance Once the refrigerant has been properly released, restart the chiller and observe key operational parameters, such as pressure, temperature, and current. This ensures that the chiller is running smoothly. Additionally, verify that the cooling effect meets the desired performance standards. If any issues arise, shut down the chiller immediately and perform further inspections and troubleshooting.   Important Notes on Refrigerant Handling It’s essential to note that handling and adjusting refrigerant levels should only be performed by qualified technicians to ensure safety and accuracy. During routine maintenance or repairs, always adhere to the chiller’s technical specifications and requirements for refrigerant charging to avoid overcharging or undercharging.   By following these detailed steps and precautions, you can effectively resolve the issue of excess refrigerant in water cooled chiller and air cooled chiller, allowing your equipment to return to stable and reliable operation. This ensures that your cooling system continues to provide dependable cooling support for production and daily activities.   About Hengde Company As a leading enterprise in the industry, Hengde has been dedicated to the refrigeration equipment field for many years. We have extensive technical experience and a professional R&D and after-sales team. Hengde is committed to providing high-quality cooling solutions and comprehensive technical support to our clients worldwide. Choose Hengde, Choose Perfect Chillers!
  • Application Of Electroplating Chillers In The Electroplating Industry Aug 06, 2025
    In the electroplating and surface finishing industry, maintaining a consistent solution temperature is critical to achieving high-quality coating results. Whether you're operating a zinc plating line, acid copper plating, or anodizing process, investing in the right chiller for electroplating is essential for performance and product consistency.   Why Temperature Control Matters in Electroplating? During electroplating, the chemical reactions between the metal ions and the substrate generate significant heat. Without an efficient electroplating water chiller, bath temperatures can quickly exceed the optimal range, leading to: Poor coating adhesion Irregular plating thickness Excessive chemical consumption Shortened bath lifespan   A properly selected chiller electroplating system ensures your plating solutions stay within the desired temperature range—reducing downtime and waste, and increasing coating quality.   What Makes a Good Electroplating Chiller? When choosing a Chiller for Electroplating Industry use, here are key features to consider: 1. Anti-Corrosion Materials Since plating baths involve corrosive chemicals, the evaporator in the chiller must be made from stainless steel or titanium tubes to resist corrosion and maintain long-term stability—especially in Zinc Plating Chillers and Acid Copper Plating Chillers. 2. Stable Cooling Precision The electroplating chiller must deliver consistent cooling even under variable production loads, avoiding temperature fluctuations that affect coating thickness. 3. Customized Refrigerant Options For clients in environmentally regulated regions, like Europe, Electroplating Chiller Manufacturers like HENGDE offer eco-friendly refrigerants such as R-407C or R-513A. Systems can also be tailored based on local compliance and technical standards. 4. Experience in the Industry A reliable Chiller for Electroplating should come from a manufacturer with deep expertise. HENGDE has delivered numerous Plating Anodizing Chillers and has supported clients across Europe, Asia, and North America with tailored cooling systems for chrome, nickel, copper, and aluminum plating.   Air Cooled or Water Cooled Chillers — Which Is Right for Your Electroplating Workshop? When it comes to choosing a Chiller for Electroplating, both air cooled Chillers and water cooled chillers are widely used—but which one suits your facility best?   For workshops with limited water access, simpler installation requirements, or those located in areas with strict water usage regulations, air cooled electroplating chillers are often the better choice. They don’t require cooling towers or additional water circulation systems, making them ideal for facilities that prioritize convenience and lower maintenance.   On the other hand, water cooled chillers for electroplating are typically more energy-efficient and stable in environments where ambient temperatures fluctuate greatly or where high-capacity cooling is needed continuously. However, they do require a reliable water source and more complex setup.   If you're running Zinc Plating Chiller systems, Acid Copper Plating Chillers, or Anodizing Chillers, your ideal chiller type depends on factors like workshop layout, cooling capacity needs, local utility costs, and environmental compliance.   Not sure which one to choose? As an experienced Electroplating Chiller Manufacturer, HENGDE offers both air and water cooled options, and we’re here to help you select the most cost-effective and efficient cooling system for your plating operation. Certainly, you can also check our this blog:Electroplating Water Cooled Chiller Or Electroplating Air Cooled Chillers? Electroplating Chillers Electroplating Water Cooled Chiller Electroplating Air Cooled Chiller   Typical Applications of Electroplating Chillers HENGDE's range of electroplating chillers has been widely used in various surface treatment processes, including: Zinc plating (acid and alkaline baths) Nickel and chrome plating Acid copper electroplating Anodizing and hard anodizing Electrophoretic and vacuum coating   Whether you're running a Water Chiller for electroplating in a hardware finishing line or operating a Chiller for Electroplating Coating Industry, temperature stability remains the key to consistent product quality.   Ready to enhance your plating line with a high-performance cooling system? Contact HENGDE today to explore our full range of chillers for electroplating, including electroplating water chillers, anodizing chillers, and custom-built plating chillers for your application.   Choose Hengde, Choose Perfect Electroplating Chiller!
  • Application Of Industrial Chillers In The Plastics Industry Jul 21, 2025
    As a leader in the refrigeration equipment industry, Hengde has leveraged its extensive technical expertise and innovative R&D capabilities to provide efficient and reliable industrial chiller solutions across a range of industries. Among these, application in the plastics industry stands out. In the complex and temperature-sensitive production processes of plastic manufacturing, industrial chillers play an indispensable role and have become key equipment for improving product quality and production efficiency.     1. Plastic Molding Mold Cooling In the plastic molding process, the cooling phase of the molds has a significant impact on both product quality and production efficiency. Hengde chillers come into play by precisely controlling mold temperatures. With efficient heat exchange mechanisms, the chillers quickly remove heat from the molds, accelerating the plastic curing process. This not only significantly reduces cooling time, allowing for faster mold release, but also greatly improves production efficiency. Furthermore, Hengde chillers ensure even distribution of mold temperature, preventing surface defects such as flow marks or stress concentration caused by uneven cooling. This results in enhanced product appearance, dimensional accuracy, and prevents deformation and shrinkage during cooling, ensuring products remain stable and meet high-precision manufacturing standards.   2. Plastic Processing Machinery Injection Molding Machine: Injection molding machines are crucial in plastic production. Hengde chillers are specifically designed for injection molding machines, providing vital support for ensuring high-quality injection molding operations. During the injection process, the chiller machine works in tandem with the injection machine to continuously cool the mold, ensuring even heat dissipation of the plastic product. This guarantees high-quality production and meets the high-precision requirements of complex injection-molded products.   Extrusion Molding Machine: For extrusion molding machines, Hengde chillers provide effective cooling for the extruder and mold, precisely controlling processing temperatures. This ensures dimensional stability of the extruded products and eliminates size deviations caused by temperature fluctuations. Additionally, it improves surface finish, resulting in smoother, higher-quality plastic products that meet premium product standards.   Blow Molding Machine: For blow molding and thermoforming equipment, Hengde chillers provide stable temperature control to create the ideal thermal environment for product formation. During blow molding, precise cooling ensures even wall thickness of the molded products, improving product strength. In thermoforming, quick and uniform cooling allows products to set faster, increasing production efficiency while ensuring consistent product quality.   3. Other Plastics Processing Industries In addition to core applications in molding and processing machinery, Hengde chillers also play an essential role in the production lines of plastic pipes, cable trays, cables, and other plastic profiles. Once these products are molded, the chiller quickly cools them, ensuring that they maintain stable physical properties during the cooling process.    Hengde Industrial Chiller In Plastic Processing: When selecting a industrial chiller, Hengde’s professional team helps plastic manufacturers consider various factors. Based on production scale and thermal load requirements of the plastic processing, we precisely calculate the required cooling capacity. Depending on site conditions and energy supply, we recommend the most appropriate cooling method. For instance, air-cooled chillers are suitable for areas with limited water resources, while water-cooled chillers are more efficient for large-scale heat dissipation needs. We also factor in power specifications, environmental temperature, and humidity to ensure that the chiller is perfectly suited to the production environment. After installation, Hengde provides comprehensive maintenance plans, including regular deep cleaning, safety checks on electrical systems, and timely replacement of wear-and-tear parts to ensure long-term stable operation, extending the chiller's lifespan and supporting continuous production for plastic manufacturers.   Choose Hengde, Choose Perfect Chillers!
  • How Do Chillers Achieve Cooling Effectiveness? Jun 23, 2025
    Chillers achieve cooling primarily through the refrigeration cycle, where four key components—compressor, condenser, expansion valve, and evaporator—work in close coordination. Below is a detailed explanation of how chillers create an effective cooling process:   1.Compressor Pressurization The compressor, as the heart of the chiller, plays a crucial role in converting low-temperature, low-pressure refrigerant gas into high-temperature, high-pressure gas. During the compression process, the temperature and pressure of the refrigerant gas both rise. This change in state sets the stage for the subsequent condensation process, as refrigerant gas at higher pressures is more effective at transferring heat to the cooling medium, leading to a phase change.   2.Condenser Heat Exchange Once the high-temperature, high-pressure refrigerant gas enters the condenser, it undergoes heat exchange with the surrounding environment. In air cooled chillers, a fan drives air through the condenser to carry away heat, while water-cooled chillers utilize circulating water to absorb heat. During this process, the refrigerant gas cools down and condenses into a high-pressure liquid. Condensers are typically equipped with high-efficiency heat dissipation devices, such as variable-speed fans or enhanced heat exchange tubes, to improve heat transfer efficiency and speed up the refrigerant condensation process.   3.Expansion Valve Throttling and Pressure Drop When the high-pressure liquid passes through the expansion valve, there is a significant drop in both pressure and temperature. The primary function of the expansion valve is to regulate the flow of refrigerant, ensuring that it can fully evaporate in the evaporator, thereby achieving an effective cooling effect. This flow control is critical for maintaining the stable operation of the refrigeration system and optimizing its cooling efficiency.   4.Evaporator Heat Absorption The low-pressure, low-temperature refrigerant liquid enters the evaporator, where it quickly absorbs heat from the surrounding environment. In practical applications, chillers primarily absorb heat from cooling water, causing the refrigerant to vaporize into a low-temperature, low-pressure gas. During this process, the water inside the evaporator is cooled and then pumped to the equipment or systems that need cooling, transferring the heat and meeting the cooling demands of the system.   Through the continuous cycle of these four steps, chillers can reliably supply low-temperature cooling water to equipment or systems, ensuring stable operation under optimal temperature conditions. Compressor: Increases refrigerant pressure and temperature. Condenser: Dissipates heat, causing refrigerant to liquefy. Expansion Valve: Reduces refrigerant pressure. Evaporator: Absorbs heat, achieving cooling.   In summary, industrial chillers rely on the seamless cooperation of the compressor, condenser, expansion valve, and evaporator, as well as the continuous flow of refrigerant through these components, to achieve cooling. This process ensures the circulation of cooled water for various industrial applications and research experiments, providing reliable cooling support.    Hengde, with years of expertise in the chiller industry, is committed to continually optimizing product performance. Our chillers not only offer high cooling efficiency but are also equipped with intelligent control systems that precisely adjust cooling capacity to meet the diverse needs of different industries. With exceptional quality and comprehensive after-sales service, Hengde has built a strong reputation in the market, making it a trusted choice for companies seeking reliable refrigeration equipment.   Choose Hengde-Choose Perfect Chillers!
  • Can Industrial Air Cooled Chillers Be Installed Outdoors? Jun 12, 2025
    Industrial chillers are commonly used in modern industrial production to cool machinery and equipment through a circulating cooling water system. Whether an air-cooled industrial chiller can be placed outdoors requires consideration of various factors.   Theoretical and Design Considerations From a theoretical and design standpoint, air-cooled industrial chillers, which use air as the heat exchange medium, can be placed outdoors. Unlike water-cooled chillers, air-cooled chillers' biggest advantage is that they do not require an additional cooling water source, making them ideal for areas where water resources are limited. Air-cooled chillers work by using fans to drive air through the condenser, facilitating the heat exchange between the refrigerant and the outside air. As long as the airflow conditions are good, placing the chiller outdoors can meet its basic cooling needs. For instance, in spacious factory yards, an air-cooled industrial chiller can be placed outdoors, free from obstructions, allowing it to fully interact with the outside air and efficiently dissipate heat.   Challenges of Outdoor Placement However, placing the chiller outdoors comes with several challenges: Environmental Temperature Impact: In extremely high temperatures, the outside temperature may become too high, reducing the temperature difference for heat dissipation, which in turn lowers the cooling efficiency and affects the refrigeration performance. For example, during summer heatwaves, when the outdoor temperature reaches 38°C or higher, the chiller's cooling capacity may significantly decrease. Severe Weather Conditions: Weather events like heavy rain, dust storms, and heavy snow can damage the chiller's electrical components and outer casing. Rainwater could enter the electrical system and cause short circuits, dust may block the condenser fins and reduce heat exchange efficiency, and snow accumulation could damage the chiller's casing. Space and Security Issues: Installing the chiller outdoors requires ample space and additional security measures to prevent theft or vandalism. Noise Considerations: Air-cooled chillers, due to their built-in fans, produce noise during operation. If placed near residential or office areas, especially outdoors, the noise could cause disturbance to nearby residents or employees, impacting their work or quality of life.   Protection Measures for Outdoor Installation If a company decides to place an air-cooled industrial chiller outdoors, several protection measures are necessary. For instance: * Building a Protective Shelter: This shelter can shield the chiller from rain, dust, and direct sunlight while ensuring good airflow. * Installing Wind Shields: To prevent damage from strong winds, protective covers should be installed. * Regular Maintenance and Inspection: After harsh weather events, it’s essential to clean the chiller’s surface, check for debris, and inspect electrical connections to ensure everything is in working order.   Hengde's Air-Cooled Industrial Chillers for Outdoor Use Hengde’s air-cooled industrial chillers are specifically designed with outdoor use in mind. The chiller's casings are made from high-strength, corrosion-resistant materials that can withstand certain levels of harsh weather. Additionally, Hengde provides professional guidance on outdoor installation and protection solutions, ensuring that the equipment runs reliably in outdoor environments.   If you want to learn more about Hengde’s air-cooled industrial chillers or have any questions, feel free to contact us anytime at www.hengdechiller.com.   Choose Hengde, Choose Perfect Chillers!
  • Common Faults And Solutions For Chiller Compressors May 12, 2025
    As a leading enterprise in the industry, Hengde Company relies on the Industrial chiller to play a crucial role in various industrial production processes. It can precisely control the temperature and ensure the stable operation of production equipment, which is a key link in ensuring production efficiency and product quality. However, during long - term use, the compressor of the industrial chiller may issue some fault alarms, which not only affect the normal operation of the equipment but may also lead to production stagnation. To help you solve problems quickly and effectively, the following details the common high pressure alarm and low pressure alarm faults of the Industrial chiller compressors of Hengde Company and the corresponding solutions.     High - Pressure Alarm of Industrial chiller Compressor 1. The condenser is dirty and blocked. Solution: Clean the condenser, keep the air temperature below 40°C / keep the cooling water below 35°C.   2. The high - pressure switch trips. Solution: Press the reset button of the high - pressure switch and restart the compressor.   3. Over - charging of refrigerant. Solution: Check whether the refrigerant charging amount is excessive.   4. Cooling water pump failure. Solution: Repair or replace the water pump.   Low - Pressure Alarm of Industrial chiller Compressor 1. Insufficient refrigerant or refrigerant system leakage. Solution: Check whether the system lacks refrigerant or whether there is leakage in the system pipelines.   2. Insufficient water flow or system shortage causes the evaporator to freeze. Solution: Check whether the water tank is short of water and whether the valve is fully opened. If the evaporator freezes, drain the water completely and then add warm water to melt it. Do not knock the ice with hard objects, as piercing the copper tube will damage the compressor!   3. Chilled water pump failure or pipeline blockage. Solution: Check the chilled water pump and pipeline system.   Hengde Company has always been committed to providing customers with high quality Industrial chiller equipment and complete after - sales services. When your Industrial chiller encounters the above - mentioned faults, you can quickly troubleshoot and repair it according to the corresponding solutions. If you encounter any difficulties during the operation, please feel free to contact the professional technical team of Hengde Company(www.hengdechiller.com). We will serve you wholeheartedly to ensure that your Industrial chiller equipment returns to normal operation as soon as possible and to guarantee the smooth progress of your production work.   Choose Hengde, Choose Perfect Chillers !
  • Six Major Reasons for the Corrosion of Industrial Chillers Apr 28, 2025
    With the continuous advancement of technology, industrial chillers have found increasingly widespread applications in various industrial fields. They play a crucial role in ensuring the efficient operation of industrial production and enhancing product quality. However, as mechanical equipment, industrial chillers are inevitably prone to certain issues during long - term operation. One of the common problems is equipment corrosion. To effectively prevent the corrosion of industrial chillers and extend their service life, Hengde Company elaborates on the six major common causes of chiller corrosion and provides corresponding preventive measures.   1. Corrosion Issues Caused by Unreasonable Engineering Construction, Design, and Installation Some factories, especially when selling ordinary industrial chillers, cut corners to reduce costs and neglect essential anti - corrosion and anti - rust treatments. Once customers expose the chiller to the outdoor environment for an extended period, the equipment shell is highly susceptible to corrosion. This corrosion risk resulting from the neglect of anti - corrosion measures in the early construction and installation stages can severely affect the normal operation and service life of the chiller.   Preventive Measures: When purchasing equipment, choose suppliers with good reputations and quality guarantees to ensure that the chiller has undergone comprehensive anti - corrosion and anti - rust treatments before leaving the factory, such as spraying high - quality anti - corrosion paint and using corrosion - resistant materials for the shell. Before installation, assess the installation environment and avoid placing the equipment in humid, dusty, or corrosive gas environments. If outdoor installation is unavoidable, build a protective shed to shield the equipment.   2. System Pipeline Corrosion Caused by Incorrect Installation or Abnormal Operation of the Water Processor In water cooled chillers, the cooling water pipeline is a key passage for cooling water circulation. The quality of the water directly determines whether scale and rust will form in the system pipelines. If the water processor is installed improperly or operates abnormally, it cannot effectively treat the water quality, thereby triggering pipeline rust. This not only reduces the heat exchange efficiency of the chiller but may also lead to pipeline blockages, affecting the stable operation of the entire system.   Preventive Measures: Before installing the water processor, strictly follow the product manual for correct installation and conduct debugging after installation to ensure its normal operation. Regularly maintain and service the water processor, checking whether all its functions, such as filtration, sterilization, and descaling, are normal. Meanwhile, regularly test the cooling water quality and adjust the operating parameters of the water processor or replace consumables like filter elements in a timely manner according to the water quality conditions.   3. Insufficient Filtration of Fine Impurities by Y - type Filters Currently, the commonly used dirt removers in industrial chillers are mostly Y - type filters. They have the advantages of easy installation and convenient dirt cleaning and can conduct preliminary rough filtration of mechanical impurities, iron filings, and sand grains. However, their filtration effect on tiny impurities is unsatisfactory. As the unit operates for a long time, the condenser is extremely likely to accumulate dirt, sludge, and other impurities. These deposits not only reduce the heat transfer performance of the condenser but may also accelerate the equipment's corrosion process due to the formation of a local corrosion environment.   Preventive Measures: Based on the Y - type filter, add a precision filter to conduct more refined filtration of tiny impurities. Regularly clean and maintain the Y - type filter and the precision filter, and promptly remove the impurities inside the filters. At the same time, regularly clean the condenser. Chemical cleaning or physical cleaning methods can be used to remove the dirt and deposits inside the condenser and maintain its good heat transfer performance.   4. Absence of a Quick Drain Valve in the Chilled Water System The quick drain valve plays an important role in draining in the chiller or chilled water system. It has a simple structure, good sealing performance, small size, and light weight, and is especially suitable for regular draining of the system. It also has the advantages of corrosion resistance, impact resistance, and long service life. However, currently, many industrial chiller end plates in enterprises do not have a quick drain valve installed, which is likely to cause system pipeline corrosion. During the daily operation of the chiller, it is recommended to open and close the drain valve three times a week to ensure smooth system drainage and maintain the good operation of the system.   Preventive Measures: For chilled water systems that have not installed a quick drain valve, install a quick drain valve that meets the system requirements as soon as possible. In daily use, strictly follow the recommended operation frequency to open and close the drain valve to ensure that impurities and dirt in the system are discharged in a timely manner. At the same time, regularly check the sealing performance and working status of the drain valve and replace it promptly if it is damaged.   5. Absence of a Water Meter in the Cooling System Makeup Water Pipeline In the water quality treatment process of the cooling system, chemicals and bactericides are usually used to kill fungi, microorganisms, and remove various dirt inside the pipeline. The dosage of the chemicals needs to be accurately adjusted according to the makeup water volume and the system water volume. If there is no water meter installed in the cooling system makeup water pipeline, it is impossible to accurately measure the makeup water volume, resulting in inaccurate chemical dosing. Excessive dosing may cause chemical corrosion of the pipeline, while insufficient dosing cannot effectively inhibit the growth of microorganisms and the formation of dirt, also triggering system pipeline corrosion problems.   Preventive Measures: Install a water meter with appropriate accuracy in the cooling system makeup water pipeline to accurately measure the makeup water volume. According to the system water volume and makeup water volume, accurately calculate the dosage of the chemicals according to the chemical usage instructions. At the same time, regularly test the water quality of the cooling system and adjust the dosage and type of the chemicals in a timely manner according to the test results to ensure that the water quality is in a good state.   6. Corrosion of the Equipment Surface by Acidic and Alkaline Gases in the Environment During factory production, some special gases, such as acidic and alkaline gases, are inevitably generated. These gases flowing in the environment can cause erosion damage to the equipment surface. Therefore, when selecting a chiller in an environment with such special gases, it is necessary to explain the situation in detail to professionals in advance so that explosion - proof and corrosion - resistant materials are preferentially selected for the production of the electrical control box or evaporator pipeline. This can effectively prevent the equipment from being corroded and damaged by acidic and alkaline gases during the later operation.   Preventive Measures: During the equipment selection stage, fully consider the gas components and concentrations in the working environment and choose chillers with corresponding protection levels and corrosion - resistant properties. For installed equipment, gas purification devices can be set up around the equipment to reduce the concentration of acidic and alkaline gases in the environment. Regularly inspect and maintain the equipment surface. If there are signs of corrosion, promptly carry out repair and protection treatments, such as repainting anti - corrosion paint.     With the rapid development of industry and the continuous emergence of new materials and new processes, the application scenarios of industrial chillers are becoming increasingly diverse, which increases the risk of equipment corrosion. Here, Hengde earnestly reminds industry friends that for industrial chiller equipment, real - time maintenance and customized servicing remain the keys to reducing corrosion and extending the service life. Only through scientific and reasonable maintenance measures can industrial chillers operate continuously and stably in complex industrial environments and provide reliable support for industrial production. When you plan to buy an industrial chiller, Hengde Company is your reliable choice. We offer high - quality products and professional services to meet all your needs.   Choose Hengde, Choose Perfect Industrial Chiller!
  • Precautions And Warnings For Industrial Chillers Apr 14, 2025
    Hengde Company, a well - known enterprise in the refrigeration equipment R & D and production industry, has been committed to providing efficient and stable industrial chiller products for various fields for many years. With advanced technology and strict quality control, Hengde chillers have a good reputation in the market and are widely used in many scenarios such as industrial production and scientific research experiments, providing reliable refrigeration support for customers' production and operation. However, to ensure the safe and efficient operation of the industrial chiller, correct operation and maintenance are of utmost importance. The following are the precautions and warnings for Hengde chillers.   I. Operating Precautions for Chillers 1. The chilled water pump of the chiller must not operate when there is no water in the water tank. 2. Try to avoid continuous switching of the operation switch. 3. When the chilled water temperature of the chiller reaches the set temperature, the compressor will automatically stop running. This is a normal phenomenon. 4. The temperature switch should be set above 5°C to prevent the evaporator from freezing (except for low - temperature units). 5.To ensure the best cooling effect and keep the chiller in optimal condition, regularly clean the condenser, evaporator, and water filter of the industrial chiller.   II. Electrical Precautions 1. Only after the unit is shut down and the power is turned off can the industrial chiller be cleaned. Otherwise, there may be a risk of electric shock or injury. 2. Do not directly rinse the chiller with water, and do not perform maintenance when the chiller is in operation. 3. Do not use steel wire or copper wire to replace the circuit breaker. Use the correct - specification fuse to avoid damaging the industrial chiller. 4. If a fault alarm occurs, immediately shut down the unit. Restart it only after the fault is eliminated, or promptly notify the maintenance personnel for handling. Continuing to use the chiller in this situation may cause electric shock or fire accidents. 5. Warranty work can only be carried out by professionals. Before removing the electrical wiring device, all power sources must be cut off.   III. Warnings 1. Never twist or pull the wires of the controller to avoid damaging the controller and causing malfunctions. 2. Never wipe the controller with benzene, thinners, or chemicals. Otherwise, it may cause discoloration or component malfunctions. To clean it, first soak a cloth in water containing a neutral detergent, wring out the water, wipe the controller, and then dry it with a dry cloth. 3. Never apply excessive force to the operation screen or connection parts to avoid color changes.   Hengde Company always pays attention to the customer - use experience. In addition to providing high - quality chiller products, we also have a professional after - sales team to provide customers with all - round technical support and maintenance guidance. If you have any questions or need help during the use of Hengde chillers, please feel free to contact us (www.hengdechiller.com). We will wholeheartedly serve you to ensure that your equipment is always in the best operating condition.   Choose Hengde, Choose Perfect Chillers!
  • How To Install An Industrial Chiller? Apr 06, 2025
    Hengde Company, a renowned leader in the industrial refrigeration sector, offers top - notch Industrial Chillers that are crucial for various industrial processes. To ensure the optimal performance and long - term reliability of these chillers, proper installation is of utmost importance. Before commencing the installation, the following preparations are essential.   Pre - installation Preparations 1. The chiller unit should be installed in a dedicated machine room. Measures must be taken to exhaust the heat generated during the chiller unit's operation from the machine room. The ventilation volume should be sufficient to maintain the room temperature below 40°C.   2. The chiller unit should be installed on a non - deformable rigid base or a concrete foundation. This foundation should have a flat surface and be capable of bearing the weight of the chiller unit during operation.   3. There should be drainage measures such as drainage ditches around the chiller unit's foundation with sufficient discharge capacity. This is to facilitate the discharge of water in the system during seasonal shutdowns or maintenance.   4. The machine room should have enough space for the installation, maintenance, and repair of the chiller unit. There should be sufficient space for tube extraction. Also, no pipelines or wire ducts should be laid above the compressor.   5. To ensure the normal operation of electrical components, do not install the chiller unit in places with dust, dirt, corrosive fumes, or high humidity. If such conditions exist, they must be rectified.   Installation Requirements 1. For water-cooled chillers, select a cooling tower that matches the refrigeration capacity of the chiller. When installing the piping of the chiller, install it according to the diameter of the cooling water pipe. Do not reduce the size of the cooling water pipe, as this will cause high - pressure overload, affect the refrigeration effect, and increase power consumption.   2. For air-cooled chillers, they must be installed in a space more than 1m away from the wall to avoid poor heat dissipation, which can lead to high - pressure overload, affect the refrigeration effect, and increase power consumption.   Notes 1. For power load and grounding parts, please construct according to relevant regulations! 2. The chilled water pipes of newly installed chillers must be insulated!   Hengde Company is committed to providing not only high quality Industrial Chillers but also comprehensive technical support and after - sales services. If you encounter any problems during the installation or operation of the chiller, our professional team is always ready to assist you. We aim to ensure that your chiller operates smoothly and efficiently, contributing to the success of your industrial operations.   Choose Hengde, Choose Perfect Chillers!
  • Electroplating Water Cooled Chiller Or Electroplating Air Cooled Chillers? Mar 17, 2025
    In the electroplating industry, maintaining a stable and appropriate temperature is crucial for the quality of the plating process. This is where the choice between water cooled chillers and air cooled chillers becomes a significant decision. Let's explore the pros and cons of each to help you make an informed choice for your electroplating operations.​   Cooling Efficiency​ Electroplating water cooled chillers generally offer higher cooling efficiency. Water has a much higher heat - transfer coefficient compared to air. In an electroplating plant, where large amounts of heat need to be dissipated quickly, a electroplating water chiller can transfer heat more effectively. For example, in a large - scale electroplating production line with high volume plating tanks, a electroplating water cooled chiller can rapidly cool the plating solution, ensuring a consistent temperature. This is essential for achieving uniform plating thickness and high quality finishes.​   On the other hand, electroplating air chillers rely on air to dissipate heat. While they are suitable for some applications, their cooling efficiency is relatively lower. The heat transfer in air cooled systems is slower, which may not be sufficient for high heat load electroplating processes. However, for smaller electroplating shops with lower heat generation, an electroplating air cooled chiller might be adequate.​   Installation and Space Requirements​ Air cooled chillers are more straightforward to install. They do not require a complex water cooling tower or a dedicated water supply system. This makes them an attractive option for facilities where space is limited or where the installation of a water cooling infrastructure is not feasible. For instance, in a compact electroplating workshop located in an urban area with restricted space, an electroplating air cooled chiller can be easily placed on the floor, saving valuable floor space.​   Water cooled chillers, in contrast, need a cooling tower and a network of pipes for water circulation. The installation of these components requires more space and careful planning. The cooling tower needs to be placed in an area with good air circulation, which may not always be available in some electroplating facilities. Additionally, the plumbing work for the water cooled system can be more complex and time consuming.​   Energy Consumption​ Electroplating coating water cooled chillers tend to consume less energy in the long run, especially in large scale operations. Their higher cooling efficiency means that they can achieve the same cooling effect with less power input compared to electroplating coating air cooled chillers. In an electroplating factory that operates around the clock, the energy savings from using a plating water cooled chiller can be significant over time.​   Air cooled chillers, due to their lower efficiency, generally consume more energy. The fans used to dissipate heat in air cooled systems require continuous power, and this can add up to a substantial energy cost, especially for high duty electroplating processes. However, for intermittent or low load electroplating operations, the energy consumption difference may not be as pronounced.​   Maintenance​ Air cooled chillers are relatively easier to maintain. They have fewer components compared to water cooled systems. The main maintenance tasks involve cleaning the air filters and checking the fan motors. In an electroplating environment, where there may be contaminants in the air, regular filter cleaning can ensure optimal performance.​   Water cooled chillers, on the other hand, require more extensive maintenance. The cooling tower needs to be cleaned regularly to prevent the build up of scale and algae. The water treatment system, which is essential for preventing corrosion in the pipes and the chiller itself, also needs to be monitored and maintained. In an electroplating facility, where the water used in the cooling system may come into contact with various chemicals, proper water treatment becomes even more critical.​   Cost​ In terms of initial cost, air cooled chillers are often more affordable. Their simpler design and lack of a need for a complex water - cooling infrastructure result in lower purchase and installation costs. This makes them an attractive option for small to medium sized electroplating businesses with budget constraints.​   Water cooled chillers, while more expensive to purchase and install initially, can offer long term cost savings due to their lower energy consumption and higher cooling efficiency. For large scale electroplating operations with high heat load requirements, the investment in a water cooled chiller may be well worth it in the long run.​   In conclusion, the choice between a water cooled and an air cooled chiller in the electroplating industry depends on several factors, including the scale of the operation, available space, energy costs, and maintenance capabilities. For large scale, high heat load electroplating plants, a water cooled chiller may be the better choice despite its higher initial cost. However, for smaller facilities with limited space and lower heat load requirements, an air cooled chiller can provide a cost effective and convenient solution.   Choose Hengde, Choose Perfect Electroplating Chillers!
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