Refrigeration apparatus

Refrigeration apparatus

  • CN 106,524,546 A
  • Filed: 08/15/2016
  • Published: 03/22/2017
  • Est. Priority Date: 09/11/2015
  • Status: Active Application
First Claim
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1. a kind of refrigerating plant, the refrigerant loop of the refrigerating plant by compression unit, gas cooler, main throttling unit andVaporizer is constituted, and the refrigerating plant is characterised by having:

  • Pressure adjustment throttling unit, which is with the downstream in the gas cooler and in the upper of the main throttling unitThe refrigerant loop of trip side is connected;

    Case, its institute with downstream and upstream side in the main throttling unit in the pressure adjustment throttling unitState refrigerant loop to be connected;

    Separate heat exchanger, which is arranged on the downstream in the case and the upstream side in the main throttling unitOn the refrigerant loop;

    1st auxiliary throttling unit and the 2nd auxiliary throttling unit, the 1st auxiliary throttling unit is to from being arranged at the 1st of the caseThe pressure of cold-producing medium that highly pipe arrangement at place flows out is adjusted, and the 2nd auxiliary throttling unit is to from being arranged at than the described 1stThe pressure of the cold-producing medium that the pipe arrangement at highly low position flows out is adjusted;

    Subsidiary loop, which is caused by the refrigeration after the described 1st auxiliary throttling unit and the 2nd auxiliary throttling unit adjustment pressureAfter the 1st stream of the separate heat exchanger is flow through in agent, the middle splenium of the compression unit is drawn into;

    Major loop, its cause from the case flow out cold-producing medium stream to the separate heat exchanger the 2nd stream and with flow throughAfter the cold-producing medium of the 1st stream carries out heat exchange, the main throttling unit is flowed into;

    AndControl unit, which is adjusted so that from after gas cooler outflow, be flowed into the pressure adjustment throttling listThe temperature of the cold-producing medium before unit is the desired value that gas cooler exit temperature becomes regulation,In the case where outside air temperature is higher than set point of temperature, described control unit adjusts the gas cooling according to the outside air temperatureDevice outlet temperature, in the case where the outside air temperature is less than the set point of temperature, described control unit is according to from the compressionAfter unit flows out, the saturation temperature of the saturated solution of cold-producing medium that is flowed into before the pressure adjustment throttling unit, adjust instituteState gas cooler exit temperature.

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