In the production work of various industries, the commonly used chillers are air-cooled chillers or water-cooled chillers. These two types of chillers are the most common in the market. Air-cooled and water-cooled industrial-grade chillers are critical for industrial processes, such as plastics, pharmaceuticals, commercial printing, and transportation manufacturing. Our clients also rely on them for brewing processes, dairy farm operations, and medical equipment processing. Both air-cooled and water-cooled chillers work by removing the heat from your processes so that your equipment stays cool, so they can keep running strong. In this post, we’re providing an insider look at the main components of a process chiller and the importance of each one. If you’ve ever wondered what’s inside a chiller, here are the four main components of both air-cooled and water-cooled process chillers to know about the 4main components of chillers and basic working principles of a water chiller. 1.The First Important Part is Compressor of chiller. The main engine of chiller cold compressor is screw and centrifugal compressor, and the commercial engine is scroll compressor. In the refrigeration industry, common compressors can be divided into the following categories. 1)Rotary Compressor Rotor compressor is a positive-displacement rotary gas compressor. The compression volume is defined by the trochoidally rotating rotor mounted on an eccentric drive shaft with a typical 80 to 85% adiabatic efficiency. 2)Piston Compressor Piston Compressor is a positive-displacement compressor that uses pistons driven by a crankshaft to deliver gases at high pressure. 3)Screw Compressor Screw compressor is a type of gas compressor, such as an air compressor, that uses a rotary-type positive-displacement mechanism. These compressors are common in industrial applications and replace more traditional piston compressors where larger volumes of compressed gas are needed, e.g. for large refrigeration cycles such as chillers, or for compressed air systems to operate air-driven tools such as jackhammers and impact

Why need to use injection molding chiller to cool the Injection molding machine? The main applications of molding temperature control machine and water chiller are warm the mold and cold the mold. Warm the mold-Mold Temperature Controller Before injection, the mold should be heated to a certain temperature. Then the plastic is not easy to solidify when it is integrated into the mold cavity in the injection molding process. The problems like insufficient physical strength, delamination, incomplete injection and blocked flow channel are all related to the weakness of warm mold, which is the significance of warm mold. Cold the mold-Injection Molding Chiller During injection molding, the mold needs to be cooled after the whole cavity is filled with plastic. The plastic in molten state is rapidly cooled and solidified. This is the normal definition of plastic molding chilling. But few people know the effect of cooling rate on the physical strength and internal stress of the final product. In principle, for different injection parts, the injection mold can be cooled via a water chiller in the fastest way. The injection molding machine produced under this way will reach the best state in terms of physical strength and internal stress. If the cooling time is too long, the physical strength of the injection molded parts will be weakened and the internal stress will be increased. It will lead to deformation of products. The most common problems are injection molded parts with thin thickness and large size such as automobile dashboard, which will cause great trouble to automobile manufacturers. Set the same amount of raw materials for each injection molding machine. But when the product design requirements are different, the mold temperature control requirements are also different. Some special products have great requirements on internal stress and physical strength. Different mold

Why does Laser Equipment need a chiller?Because it needs to cool down! What would happen: Temperature will increase when the laser equipment working In the process of laser equipment running for a long time, the laser generator will generate high temperature continuously. If the temperature is too high, it will affect the normal operation of the laser generator, which is easy to be damaged. For example, Laser cutting machines in the long-term production process, its laser generator carbon dioxide glass laser tube will gradually heat. This will result in poor cutting effect, seriously the tube will explosion. How to fixed this high-temperature problem?-Using a water chiller right now To prolong the service life of the laser, it is necessary to cool the laser exciter by water circulation to ensure its normal operation under constant temperature or set temperature. How does the water chiller work with the laser equipment? The water chiller is mainly used to cool the laser generator of the laser equipment. And control the temperature of the laser generator so that the laser generator can work normally for a long time. The water chiller is a kind of water cooling equipment, which can provide constant temperature, constant current, and constant pressure. The principle of the water chiller is to inject a certain amount of water into the internal water tank of the machine, cool the water through the refrigeration system of the water chiller, and then the water pump inside the machine will inject the low-temperature frozen water into the equipment to be cooled. The frozen water will take away the heat inside the machine, and return the high-temperature hot water to the water tank again for cooling, to achieve the purpose of cooling the equipment Use. APT Laser Air-cooled Industrial Unit APT water chiller, which is widely

Operation problems and Countermeasures of refrigeration equipment in winter In Winter, when the outdoor temperature is wet and low, and the condensation pressure has a great influence on the performance of the refrigeration system. When the condensation pressure (or condensation temperature) is high, the compression ratio increases. And the volumetric efficiency of the compressor decreases, resulting in the reduction of refrigeration capacity and the increase of power consumption. The higher the exhaust temperature and the higher the condensation pressure, the greater the adverse effect. The phenomenon of high condensation pressure mainly occurs in Summer. At this time, the condensation pressure should be reduced as much as possible to ensure the economy and reliability of the system operation. However, in winter, the condensation pressure of refrigeration equipment may be too low. When the condensing pressure is too low, the pressure difference between the front and back of the expansion valve is too small, and the capacity of the expansion valve is reduced, resulting in the insufficient liquid supply capacity of the system refrigerant, the lack of liquid in the evaporator, and the refrigeration capacity of the system is greatly reduced, and the unit is protected under low pressure. Therefore, it is necessary to control the condensing pressure in a reasonable range, otherwise the refrigeration device will have frequent low-pressure alarm or low suction pressure alarm. In order to avoid the winter operation risk of the cooling water system, we can start from ：the cooling tower equipment, cooling tower operation strategy and the end pipeline setting. To avoid the winter operation risk through the equipment side anti freezing, cooling tower start-up and shutdown and pipeline optimization design. 1.There are TWO parts of antifreeze in the place of perennial operation or partial operation: Spray Water System and Internal Circulating Water System (softened water). For the anti freezing

Comparison Between Electronic Expansion Valve and Thermal Expansion Valve Now more and more civil and commercial refrigeration equipment use electronic expansion valve to replace the original thermal expansion valve. The electronic expansion valve and the thermal expansion valve have the same basic use, but different in performance. 1. Adjustment range At present, the regulating range of thermal expansion valve is generally narrow. The heat pump unit should not only refrigeration, but also heating, and the ambient temperature range of the suitable occasions is from – 15 ℃ to + 43 ℃, and the corresponding refrigerant evaporation temperature will work in the range of – 25 ℃ – 5 ℃. In addition, if there are multiple compressors in the refrigeration circuit, the number of compressors in operation will change accordingly with the change of user load, resulting in dramatic change of refrigerant flow. Therefore, a single thermal expansion valve is far from competent for the operation of large heat pump units. At present, many large-scale heat pump products are designed with single loop and single compressor, and the expansion valve system with independent refrigeration mode and heating mode is adopted, which will increase the complexity and manufacturing cost of the system. The electronic expansion valve can be adjusted accurately in the range of 15% ～ 100%. According to the current use effect, a single electronic expansion valve can meet the regulation of heat pump unit under the above conditions. The adjustable range can be set according to the characteristics of different products, which increases the flexibility. 2. Control of superheat (1) Superheat control point: For the thermal expansion valve, generally only the superheat at the evaporator outlet can be controlled. In the semi closed and fully closed compressor system, the control point can be set not only at the evaporator outlet,

Operation Sequence of Water Chiller 1.CHECK LIST BEFORE INPUT POWER WHEN the power supply and water supply both meet the requirements,then can we input the power:FIRST, press the power button ON, and check : ① LIQUID LEVEL AND OPEN THE PUMP VALVE: Whether the liquid level of the cold water tank meets the requirements and whether the front and rear valves of the cold water pump have been opened; ② OPEN THE WATER TOWER AND PUMP Turn on the switch of cooling water tower and cooling water pump, and pay attention to the opening of inlet and outlet valves of cooling water. (Note: air cooled type does not need cooling water tower) ③CHECK THE TURNING DIRECTION When all the above conditions are met, you can use the inching mode to test whether the direction of cooling water pump, cold water pump, cooling tower fan and condensing fan of air cooling unit is correct, and whether the water transmission and air suction and discharge are normal. If not, they must be eliminated first. Important tips If the operation inspection is not carried out according to the above steps, it will lead to difficulty in heat removal, poor refrigeration effect or even refrigeration, and even damage of fans, pumps and even refrigeration compressors. 2. PRESS THE CHILLER OPEN BUTTON AND LET IT RUN Turn on the running switch of the chiller again, and the chilled water pump starts to run. Please note that the inlet and outlet valves of the chilled water must be opened, and the compressor will run automatically after the delay switch. Please check and adjust the required temperature. 3. Startup sequence difference of water-cooled and air-cooled chiller: ① Water cooled chiller unit: turn on the cooling tower fan and cooling water pump first, and then turn on the

Installation Requirements of Industrial Water Chiller All the Installation requirements of industrial water chiller you should notice to make sure the chilling unit can run as long as it can. Industrial chillers can be divided into two categories according to the heat dissipation mode: 1. Water cooling units; 2. Air cooling units. The water-cooled unit must be connected with the cooling tower and the inlet and outlet pipes of cooling water and chilled water. The cooling tower and cooling pump should be selected according to the refrigeration capacity and compression power, with the inlet pressure ≥ 1.5bar, and the diameter of the inlet and outlet pipe should be consistent with the diameter of the cooling water inlet and outlet pipe. However, the air-cooled unit only needs to connect the chilled water inlet and outlet pipes and make-up water source. After the power supply is connected, the operation can be carried out. The ventilation should be smooth, and there should be no dust and debris around to avoid being inhaled into the unit. 1.The diameter of the water pipe The diameter of the water pipe connection port reserved by the unit is standard size. When the remote transmission is adopted, a larger diameter water pipe must be used for connection. In any case, the diameter of the water pipe should not be smaller than the standard diameter of the connection port, otherwise, the pressure alarm will be given and the compressor and water pump will be damaged greatly. 2.Connecting The Water Pipe When connecting the water pipe, the user should refer to the installation diagram to connect the pipeline, confirm the position of the inlet and outlet pipe, distinguish the cooling water pipe and the chilled water pipe.The wrong connection of the pipe will damage the unit.Only after ensuring the normal

Characteristics and advantages of different types Water Chillers 1. Box type water cooling chiller: It has compact structure, with water tank and water pump inside. It is suitable for equipment with closed external pipeline. The water-cooled model needs to be equipped with cooling water pump and cooling tower before it can be put into use. 2. Box type air-cooled chiller: In addition to all the performance of box type, there is no need to add cooling water pump and cooling tower. It is easy to install and operate. It is suitable for small flexible production equipment and workshop where cooling tower is installed unconditionally. 3. Water cooled open type water chiller: It is not equipped with chilled water tank and water pump, but can be connected with water pump and water tank as required. The volume of water tank and pump head are not limited, which can better meet the needs of different industrial equipment. Open structure, easy to clean and maintain. 4. Water cooled or air-cooled low-temperature chillers: Antifreeze solution (ethylene glycol or low-temperature brine) should be used as the carrier refrigerant, and the outlet temperature can be below zero. It includes three series: high temperature (water outlet temperature: 3 ℃ – 5 ℃), medium temperature (water outlet temperature: – 5 ℃ – 10 ℃), and low temperature (water outlet temperature – 15 ℃), which can meet the low temperature requirements of various equipment and can also be customized according to the special requirements of customers. 5. Water cooled screw type: Adopted with shell and tube condenser and shell and tube condenser , which have the characteristics of simple structure, stable heat exchange, long-lasting efficiency and convenient maintenance. The unit has reliable safety protection devices, including: high and low voltage protector, exhaust overheat protector, compressor motor overheat protector, overload