Single-level refrigeration system and method for stepless adjustment of refrigerating capacity and dehumidification amount

Abstract

The invention relates to a single-level refrigeration system and method for stepless adjustment of the refrigerating capacity and the dehumidification amount, and belongs to the technical field of control. According to the single-level refrigeration system and method for stepless adjustment of the refrigerating capacity and the dehumidification amount, a refrigeration loop and a dehumidification loop of the single-level refrigeration system and method can accurately control the refrigerating capacity and the dehumidification amount, accordingly, confrontation adjustment in the prior art is notadopted, the usage frequency of a heating system and a humidification system is reduced, and the refrigeration and dehumidification running cost is reduced; and meanwhile, through stepless adjustmentof the refrigerating capacity, the refrigerating capacity is provided only according to needs, the average temperature of an evaporator is slightly lower than the box interior control temperature, the evaporator frosting possibility is reduced, the problem of frosting at the temperature of 0 DEG C or above is solved, long-term stable temperature running of a testing box can be guaranteed, and reliability of the testing box is improved. According to the single-level refrigeration system and method for stepless adjustment of the refrigerating capacity and the dehumidification amount, the systemstructure is simple, maintenance is convenient, method application is simple and convenient, and the application range is very wide.

Description

technical field [0001] The invention relates to the technical field of temperature and humidity control, in particular to the technical field of refrigeration and dehumidification control for test chambers, and specifically refers to a single-stage refrigeration system and method for steplessly adjusting cooling capacity and dehumidification capacity. Background technique [0002] The temperature and humidity test chamber requires continuous and precise adjustment of the temperature and humidity in the chamber. The adjustment method usually adopted by the air conditioning industry by starting and stopping the compressor cannot meet the control needs of the temperature and humidity test chamber. In addition, because the test chamber needs to achieve a large temperature adjustment span (-40°C to +150°C), it needs to achieve extreme low temperature and high temperature, so the inverter compressor cannot be used in many working conditions. [0003] At present, the mainstream ref...

AI Technical Summary

Problems solved by technology

Since the refrigeration system has been working, the average temperature of the evaporator is far lower than the control temperature in the box, and it is easy to frost in the low temperature or even normal temperature range, which will affect the cooling effect and the long-term stability of the test box.

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