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In recent times, the advancements in shipbuilding technology and the growth of offshore fishing have led to increased focus on marine water chillers. These marine chillers are essential for maintaining the freshness of caught fish, ensuring they remain in good condition until they are unloaded ashore or processed further on the ship.   The operational principle of marine chillers resembles that of their land-based counterparts. A compressor is used to transform low-temperature, low-pressure refrigerant gas into high-temperature, high-pressure gas. This is then sent to the condenser, where heat is dissipated via a cooling medium, typically seawater, causing the refrigerant gas to condense into a liquid. The liquid refrigerant, after passing through a throttling device to reduce its pressure, enters the evaporator. Here, it absorbs heat from the cooled medium, such as air or water, thereby achieving the refrigeration effect. The cooled medium is then piped to the equipment or system requiring cooling, completing the cooling cycle. Hengde Marine Chillers 40HP Marine Chillers 15HP Marine Chiller 10HP Marine Chillers   The key components of marine chillers include compressors, condensers, evaporators, throttling devices, and control systems. The compressor is the central part of a marine chiller, with common types being piston, reciprocating, screw (semi-closed or open), or scroll compressors. The condenser usually has a shell and tube structure, often made of nickel-copper on the inside, and uses seawater as the cooling medium. To safeguard against seawater corrosion, corrosion-resistant materials like titanium alloy or stainless steel are employed. The evaporator typically has a shell and tube or plate structure and can be made of stainless steel based on customer requirements. Its design must consider the spatial constraints and cooling needs of the ship, aiming for efficient heat exchange, compact size, and light weight.   Hengde, as a specialized manufacturer of marine chillers, has assisted numerous fishing enterprises in resolving fish storage issues. A notable example is the case of a Maldivian customer. Five years ago, a Maldivian marine shipyard contacted us. Their clients reported that the ships in operation lacked refrigeration equipment, resulting in a large number of caught fish perishing due to temperature differences. Consequently, they intended to install marine chillers on all their ships. Since the installation of our marine water chillers, the water temperature has been kept at an appropriate level, ensuring the fish stay fresh. The performance and capabilities of our marine chillers left a profound mark on the customer. They are now constructing a new shipbuilding factory and plan to equip all future ships with Hengde's marine chillers.   Choose Hengde, Choose Perfect Marine Chillers!

During the installation of the mould temperature controller, great care must be taken to avoid any damage to the unit. Adequate space around the mould temperature controller should be allocated in a rational manner to ensure convenient access for its maintenance and servicing. The cooling water system ought to be meticulously designed and installed in strict accordance with the national standard piping system design and construction installation criteria, thereby maximizing the performance of the mold temperature controller.   1. Water Mold Temperature Controllers The heat transfer medium for the water mold temperature controller must be a pristine water source, free from sand, soil, or other contaminants. If groundwater is utilized, it should be softened. The circulating water should be replaced on a regular monthly basis. Water with impurities can readily clog the pipelines and inflict damage on the machine. Unsoftened water is prone to scale formation, which severely impairs the heating and heat transfer efficiencies and diminishes the service life of the heating tubes.   2. Oil Mold Temperature Controllers Prior to operation, it is essential to employ high quality, clean, and heat transfer oil of a unified brand. Brands such as Mobil, Esso, and Total are recommended. The use of inferior heat transfer oil can lead to heater fouling and burnout, pump impeller wear, and a reduction in flow rate, consequently shortening the normal service life of the equipment. The oil mold temperature controller machine should not be moved casually while it is in operation. If the mold temperature controller requires repair, the oil temperature must be lowered to below 80℃ (176℉)  before any repair work can commence. The potential causes of motor overload include power phase loss, pipe blockage, and bearing damage. When the motor is overloaded, the motor overload relay will automatically trip and halt the machine to safeguard the motor. The alarm can be cleared by pressing the "Reset (green button)" switch on the overload relay. Before shutting down the pump, it is necessary to wait until the oil temperature has dropped below 80℃ (176℉)  ; otherwise, its service life will be adversely affected. To achieve a stable control temperature, the cooling water pressure should be maintained within the range of 1 - 3 kg/cm².     In conclusion, correct installation, proper heat transfer medium management, and strict adherence to operational guidelines are vital for the performance and durability of water and oil temperature controllers. Following these instructions and precautions ensures reliable operation, reduces malfunctions, and boosts productivity. Regular maintenance and performance monitoring enhance efficient and sustainable use, protecting the investment in Hengde mold temperature controllers.   Choose Hengde, Choose Perfect Mold Temperature Controller!

In recent times, the Hengde mold temperature controller has garnered significant acclaim from both domestic and international customers, owing to its dependable performance and cutting-edge technology. With its soaring popularity in the global market, it has witnessed substantial export volumes to over 100 countries and regions, including the United States, Russia, Australia, Africa, and Southeast Asia, thereby earning high regard among customers worldwide.   Nevertheless, during the operational phase, certain malfunctions are bound to occur. In such instances, how can one undertake self-troubleshooting? The following suggestions are presented, and it is advisable to initially examine these solutions.   Common Failures for the Mold Temperature Controllers Cause Solutions 1. Unable to start, no fault indicator light. 2P2A Circuit breaker tripped Open the circuit breaker to check the cause. Phase loss Check the power cord. Transformer burnt Replace the transformer. 2. The indicator light for lack of media is on. The cooling water is not turned on or the pressure is insufficient Open the cooling water valve and check the pressure. Pressure switch problem Adjust the pressure switch or replace it. Insufficient heat transfer oil Add heat transfer oil 3. Pump overload light on. System overload 1. Check whether the hot water inlet and outlet valves are open and press the reset button; 2. Clear the scale of the electric heater. The power supply voltage is abnormal or the phase is missing 1. Use a three-phase meter to measure the three-phase voltage; 2. Check whether the power supply terminal is loose and tightened, and press the reset button. 4. The temperature is too high and cannot be cooled. The solenoid valve is blocked Clean the solenoid valve The solenoid valve coil is aging or damaged Parts need to be replaced. 5. Unable to heat or reach a certain temperature and no longer rise Solenoid valve is blocked or damaged Clean the solenoid valve or replace accessories. Heating tube burns out Replace the heating tube. 6. The fault light is on and the alarm does not sound Alarm failure Replace the alarm. The above methods are only for mud pump products of Hengde brand. Our mould temperature controllers are constantly updated and upgraded. Please contact us if you have any questions.    By understanding and addressing these common faults and their corresponding solutions, users can ensure the smooth and efficient operation of Hengde mold temperature controllers, maximizing their productivity and minimizing downtime. With proper maintenance and prompt troubleshooting, Hengde mold temperature controllers will continue to serve various industrial needs effectively and maintain their reputation for quality and reliability in the long run.   Choose Hengde, Choose Perfect Mold Temperature Controller!