High and low temperature impact box refrigeration system: Refrigeration system and compressor: In order to ensure the cooling rate of the test box and the low temperature of the Zui, the test box adopts a binary cascade air-cooled refrigeration system consisting of imported French fully enclosed compressors. . The cascade cold system comprises a high temperature refrigeration cycle and a low temperature refrigeration cycle. The connecting vessel is an evaporative condenser. The evaporating condenser is also used for energy transfer. The heat energy in the working chamber is transmitted through the two-stage refrigeration system to achieve the enthalpy temperature. the goal of. The design of the refrigeration system uses energy regulation technology, and an effective treatment method can ensure the energy consumption and cooling capacity of the refrigeration system can be effectively adjusted under the normal operation of the refrigeration unit, so that the operation cost of the refrigeration system And the failure rate drops to a more economical state. Refrigeration working principle: Both high and low refrigeration cycles use reverse card cycle, which consists of two isothermal processes and two adiabatic processes. The process is as follows: the refrigerant is adiabatically compressed to a higher pressure by the compressor, and the work is exhausted to increase the temperature of the exhaust gas, and then the refrigerant is heat-exchanged with the surrounding medium through the condenser isothermally, and the heat is transferred to the surrounding medium. After the refrigerant is adiabatically expanded by the valve, the temperature of the refrigerant is lowered. After the zui, the refrigerant absorbs heat from the higher temperature object isothermally through the evaporator, so that the temperature of the object to be cooled is lowered. This cycle is repeated to achieve the purpose of cooling.
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