A chiller is a kind of refrigeration equipment (also called: chiller, chiller, chiller, freezer, chiller) that is used by industry to circulate liquid to reduce the temperature required to achieve the desired temperature. These liquids can flow through the heat exchanger to cool the air or equipment.
Refrigerator (http://) is a kind of refrigeration equipment used in industry to reduce the temperature required to reduce the temperature required to reduce the production efficiency (also known as: chiller, chiller, chiller, freezer, chiller) ). These liquids can flow through the heat exchanger to cool the air or equipment. The steam-compressed water-cooled unit consists of four main components of a vapor compression refrigeration cycle (compressor, evaporator, condenser, desiccant filter, thermal expansion valve), which are the most important refrigeration stages in the refrigeration process. Absorption refrigeration working principle Absorption refrigeration is a cooling method using thermal energy as a power. It also uses refrigerant vaporization heat absorption to achieve refrigeration. Therefore, it has similarities with vapor compression refrigeration. The difference is that the compensation methods used to transfer heat from low temperature to high temperature are different. The mechanical compression of vapor compression refrigeration and the thermal energy of absorption refrigeration. To compensate. At the same time, the working principle diagram of the absorption type and vapor compression type refrigerator is given.
The working fluid used in the absorption refrigerating machine is a binary mixture (solution) composed of two substances having different boiling points. The low boiling point substance is a refrigerant, and the high boiling point substance is an absorbent. There are two cycles in the absorption chiller - refrigerant cycle and solution cycle. The working fluid of the absorption refrigeration cycle is the same as the refrigerant, and the working medium with Freon as the refrigerant mainly contains chlorodifluoromethane-dimethylformamide (R22-DMF) and chlorodifluoromethane-tetraethylene glycol dimethyl ether. (R22-E181), chlorodifluoromethane-dibutyl phthalate (R22-D**), and the like. It is advantageous to use R22-DMF at high temperature and low condensation temperature. For lower temperature and higher condensation temperature, such as solar refrigeration system, R22-E181 is better.
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