Chiller Water Cooler

　　Chiller water cooler are also known as: freezers, chillers, refrigeration units, ice water units, cooling equipment, etc., and are generally more common in air conditioning systems and industrial cooling systems, such as laboratory equipment, chemical product manufacturing, pharmaceuticals, food processing, Beverage processing and other fields. Different operating conditions have different requirements for chillers.

　　Chiller water cooler mainly uses four main components: compressor, evaporator, condenser, and expansion valve to realize the state change of the flowing working medium in the unit, and then achieve the effect of cooling and heating.

　　According to the different compressors used, the chiller includes screw chiller, scroll chiller, centrifugal chiller and piston chiller. For example, we commonly see "screw chiller", "scroll chiller", "screw low temperature chiller" and so on in the manufacturer's product brochures.

　　Depending on the temperature to be controlled, the chiller is divided into a low temperature industrial chiller and a normal temperature chiller. The temperature of the normal temperature unit is generally controlled within the range of 0°C to 35°C. The temperature control of the low temperature unit is generally around 0℃～-100℃. According to the outlet water temperature, industrial chillers generally have the following categories: outlet water temperature: -25°C to -5°C; outlet water temperature: -25°C to -45°C; outlet water temperature: lower than -45°C.

　　According to different refrigeration forms, chillers can generally be divided into water-cooled and air-cooled. Water-cooled chillers are divided into water-cooled chillers, water-cooled brine chillers, and water-cooled glycol chillers according to different refrigerants. In daily use, many people refer to it as a water-cooled unit for short.

　　The water-cooled chiller realizes heat dissipation through water, that is, the shell and tube evaporator is used to exchange heat between the water and the refrigerant. Shell and tube condenser, heat exchange between refrigerant and water, so that the water absorbs heat and then takes the heat out of the external cooling tower through the water pipe to dissipate.

　　The air-cooled chiller adopts a fin-type condenser, and the air is forced to flow through the fan to take away the heat of the refrigerant. has certain advantages. Air-cooled chillers are suitable for use in water-deficient areas or in mobile situations, especially for small chillers that do not require much cooling capacity, mostly air-cooled chillers. In addition, for areas with poor water quality, the use of water-cooled chillers is likely to cause scaling of the condenser and blockage of water pipes. However, if the finned condenser used in the air-cooled chiller has too much dust on the surface, it will greatly affect the heat exchange efficiency. Therefore, a dust filter must be installed in front of the cooling fins of the air-cooled chiller, and Regular cleaning is required.

　　In terms of energy efficiency, the cooling capacity of water-cooled chillers is 300-500kcal/h higher than that of air-cooled chillers. GB19577 "Limited Values of Energy Efficiency and Energy Efficiency Grades of Chillers" stipulates the energy efficiency grades of chillers. Manufacturers should indicate the rated energy efficiency grades of the chillers on the factory documents of their products.

　　The difference between air cooling and water cooling equipment.

　　The first is the difference in the composition of refrigeration systems.

　　To put it simply, we can generally see the cooling towers on the roofs of factories and buildings, which are also used for heat dissipation, and the water-cooled chiller is matched with the cooling tower, while the other is not required for cooling towers, and uses air directly. Cold, is an air-cooled chiller.

　　One does not require a cooling tower, and the other has its own fan for cooling. This is the biggest difference between the air-cooled and water-cooled appearance of industrial chillers.

　　The second is the volume of the chiller equipment. Because the water-cooled equipment is equipped with fixed facilities such as water towers, the volume is much larger than that of the air-cooled unit, and the larger the cooling capacity, the larger the volume.

　　Generally, factories are equipped with more water-cooled equipment, while scientific research laboratories have more advantages in equipped with air-cooled equipment, because one is a factory building and the other is an office building, and the equipment room occupies an area that determines the equipment investment cost.

　　The third is the cooling capacity of the equipment. Compared with the water-cooled chiller, the air-cooled chiller has a smaller cooling capacity. The air-cooled type is more suitable for small systems, and the water-cooled type is more suitable for large-scale systems.

　　In general industry, such as laser chiller, small coating machine equipment, hot bending machine equipment, etc., there are many small chillers, while chemical reactors, fermentation tanks and other reaction vessels are equipped with large cooling capacity units, and different equipment has different refrigeration. volume demand.

　　The fourth is that equipment prices are different

　　The price of industrial chillers is reflected in many aspects, such as enterprise strength, brand, configuration, after-sales service, whether to customize the unit and so on. Generally, the cost of water tank and water pump of air-cooled unit is higher than that of water-cooled chiller, while the small water-cooled chiller can be directly connected to the pool, and the large-scale cooling tower needs a suitable volume.

　　Nanjing RICOM suggested, pay attention to the following for air-cooled/water-cooled chillers:

　　The industrial air-cooled chiller unit comes with a water tank water pump, which is convenient and flexible for mobile installation and stable cooling, but it also has disadvantages, that is, the environment where the equipment is installed must be well-ventilated, otherwise poor heat dissipation will affect the cooling effect. Suitable for small equipment, such as laser cooling, ultrasonic cleaning and other equipment.

　　Water-cooled chillers are open type, box type, and screw type, and need to install water pumps and cooling towers. The water quality conditions are high, and poor water quality will affect the heat exchange efficiency and even reduce the life of the equipment. The cooling capacity of water cooling is higher than that of air cooling, and the operating noise is lower. It is suitable for dust-free workshops, data centers, chip laboratories, and electronic computer rooms.

　　Description(R407C)

      High Quality

　　Pass the Iso9001 quality system certification and CE certification

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