The chiller is a cooling water device that can provide constant temperature, constant current and constant pressure. The temperature of the return water of the chiller should not be higher than 40 degrees. The higher the return water temperature, the greater the damage to the compressor. The operation of the chiller system is through three interrelated systems: the refrigerant circulation system, the water circulation system, and the electrical automatic control system. In terms of temperature control, the chiller is divided into a low temperature chiller and a normal temperature chiller. The normal temperature is generally controlled within the range of 0 degrees to 35 degrees. The temperature of the low temperature machine is generally controlled in the range of 0 degrees to minus 100 degrees.
Industry classification: Air-cooled chiller and water-cooled chiller
Application range: plastic industry, electronic industry, electroplating industry, machinery industry, construction industry, vacuum coating, food industry, pharmaceutical industry, etc.;
Table of contents
First: Introduction of chiller
The chiller is a kind of water cooling equipment, and the chiller is a cooling water equipment that can provide constant temperature, constant current and constant pressure. The working principle of the chiller is to inject a certain amount of water into the water tank in the machine, cool the water through the chiller refrigeration system, and then send the low-temperature cooling water to the equipment to be cooled by the water pump. High and then return to the water tank to achieve cooling.
Second: the working principle of the chiller
The refrigerant absorbs the heat of the cooled object in the evaporator and vaporizes it into steam. The compressor continuously extracts the generated steam from the evaporator and compresses it. The compressed high-temperature and high-pressure steam is After being sent to the condenser, it releases heat to the cooling medium (such as water, air, etc.) and condenses into a high-pressure liquid. After being depressurized by the throttling mechanism, it enters the evaporator, vaporizes again, and absorbs the heat of the object to be cooled. During heating, the refrigerant changes the flow direction of the refrigerant through the four-way valve. The flow direction of the refrigerant is just opposite to that during cooling. The refrigerant first passes through the evaporator, then returns to the condenser, and finally returns to the compressor.
Third: product classification of chillers
According to the form of compressor: scroll chiller,piston chiller, screw chiller, centrifugal chiller;
By fuel type: fuel type (diesel, heavy oil), gas type (kerosene, natural gas);
By condenser cooling method: shell and tube condenser type chiller,fined condenser type chiller;
According to the form of energy utilization: single cooling type heat pump type, heat recovery type, single cooling type, ice storage dual function type;
According to the cold water outlet temperature: high temperature type (7 degrees, 10 degrees, 13 degrees, 15 degrees), medium and low temperature type (-5 degrees to -30 degrees), ultra-low temperature type (-30 to -120 degrees);
According to the sealing method: open type, semi-closed type, fully closed type;
According to the refrigerant: water-cooled chiller, brine chiller, ethylene glycol chiller;
According to different energy compensation points: power compensation (compression type), thermal energy compensation (absorption type);
According to refrigerant: R22, R407C, R134a, R404a, etc.;
According to different heat sources (absorption type): hot water type, steam type, direct combustion type.
Nanjing RICOM Refrigeration Equipment Co., Ltd. is a manufacturer specializing in industrial temperature control technology for 20 years. It implements the modern quality management system S09001: 2008 and environmental system IS014001: 2004 standards to ensure that the enterprise team continues to be in the technical field. Innovation, focusing on customer use and satisfaction, has been unanimously recognized by the industry and customers.
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