Composition and schematic diagram
Composition of water chiller: refrigeration unit system, refrigerant circulation system, water circulation system, electrical automatic control protection system, heat exchanger, chilled water pump, water tank (configured according to customer needs), automatic water make-up ball valve, water flow switch and other components
working principle
The unit uses the principle of heat exchange to reduce the temperature of chilled water to the required temperature (ordinary ≥ 5 ℃, low temperature ≥ - 20 ℃) through the heat exchanger. The water is pumped into the evaporation water tank through the chilled water pump for heat exchange to generate chilled water, which is pumped into the evaporator water tank for circulation. When the chilled water is insufficient, the chilled water flow cannot push the water flow switch blade, and the refrigerator stops running. At this time, the automatic water make-up device starts to work to make up water. The water level of the water tank can be judged through the liquid level display, and the chiller can be started again.
Refrigerant circulation system
The liquid refrigerant in the evaporator absorbs the heat in the water and begins to evaporate. Finally, a certain temperature difference is formed between the refrigerant and the water. The liquid refrigerant also completely evaporates and becomes gaseous, which is then sucked in and compressed by the compressor (pressure and temperature increase). The gaseous refrigerant absorbs the heat through the condenser (air-cooled/water-cooled) and condenses into liquid. After throttling through the expansion valve (or capillary tube), it will become a low temperature and low pressure refrigerant and enter the evaporator to complete the refrigerant circulation process.
Electrical control system
Including power supply part and automatic control part. The power supply part supplies power to the compressor, fan, water pump, etc. through the contactor. The automatic control part includes the combination of temperature controller, pressure protection, time delay device, relay, overload protection, etc. to achieve automatic start stop, protection and other functions based on water temperature.
characteristic
1. As the heart of the industrial chiller, the high-quality compressor (a brand new original compressor produced in Europe, America and Japan, with a built-in safety protector, low noise, power saving and durable).
2. The water tank evaporator is equipped with an automatic water replenishing device, which eliminates the expansion of the water tank in the project installation and is convenient for installation and maintenance. It is suitable for special occasions such as large temperature difference and small flow.
3. The water-cooled condenser is made of the latest high-efficiency external threaded copper tube, with large heat dissipation and small size. With the latest CAD/CAM processing technology and CNC machining center, it is made with compact structure, high reliability, beautiful appearance, high efficiency and energy saving.
4. Configuration of industrial water chiller unit: equipped with microcomputer control system, built-in compressor drying filter, expansion valve, maintenance hand valve interface and other devices, ensuring reliable and safe operation of the machine and facilitating maintenance.
Application industry
Mold cooling in the plastic industry, electroplating pool cooling in the electroplating industry, various cooling in the electronic industry, various cooling in the chemical industry, various cooling in the pharmaceutical industry, cooling in the food industry, cooling and constant temperature in the preservation industry, various air conditioning equipment laser technology, welding, mechanical cutting processing, non cutting processing, casting, surface treatment, medical equipment, electronic industry, circuit board production, electronic chip manufacturing, chemical industry, paper making, pharmaceutical industry Food processing industry, aluminum profiles, aluminum alloys, tempered glass, coated glass production, ultrasonic cleaning, jewelry processing, fur processing, ink production, etc.
