An energy-saving refrigeration device for the enthalpy difference chamber of an air conditioner

Abstract

The invention relates to the technical field of psychrometer testing rooms, and discloses an energy-saving refrigeration device for a psychrometer testing room. The energy-saving refrigeration device comprises a temperature adjusting module and a humidity adjusting module, wherein the temperature adjusting module comprises a temperature sensor, a temperature controller connected with the temperature sensor, as well as a heating device and a refrigeration device which are connected with the temperature controller; the refrigeration device consists of a compressor, a heat recycling coiled tube, a condenser, an electronic expansion valve and a refrigeration coiled tube which are connected end to end; the heat recycling coiled tube is provided with a variable frequency fan which is connected with the temperature controller; a pressure sensor is arranged at the outlet of the refrigeration coiled tube; the humidity adjusting module comprises a humidity sensor, a humidity controller connected with the humidity sensor, a humidification device connected with the humidity controller, and an evaporation pressure controller; the evaporation pressure controller is respectively connected with the electronic expansion valve and the pressure sensor. By adopting the energy-saving refrigeration device, the condensation heat recycling and latent heat property of a refrigeration system of a fixed frequency working condition machine set can be adjusted, and the electric consumption of invalid cooling capacity and invalid dehumidification in the working condition adjusting process is reduced.

Description

technical field [0001] The invention relates to the technical field of an air conditioner enthalpy difference test chamber, in particular to an energy-saving refrigeration device used in an air conditioner enthalpy difference chamber. Background technique [0002] The current air conditioner enthalpy difference laboratory mostly adopts fixed step refrigeration, stepless heating and humidification to achieve working condition adjustment. Since the cooling capacity of the refrigerator cannot be adjusted and the sensible heat ratio cannot be adjusted, ineffective cooling and dehumidification will be brought about during the balance of working conditions, which needs to be balanced by electric heating and electric humidification, resulting in huge energy consumption for the operation of conventional laboratories. [0003] Take a 5HP enthalpy difference test room as an example. In order to meet the test requirements of a 5HP air conditioner, it is often necessary to configure an ...

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Problems solved by technology

In fact, a large part of the energy consumption is offsetting each other, resulting in a lot of waste of energy.

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