Air conditioner back-heating device and its control method

Abstract

The invention discloses an air conditioning regenerative device which is used between a high pressure liquid storage tank and a liquid pipe stop valve. The device comprises a regenerator and a supercooling valve for adjusting liquid flow in the regenerator. The invention also discloses an air conditioning regenerative control method which comprises following steps: 1) a detection of an outlet temperature of the regenerator; 2) a detection of a pressure of a refrigeration valve; 3) a determination of a saturation temperature according to a comparison of the pressure with a thermodynamics saturation temperature indicator; 4) a judgment that whether a temperature of an outlet of a main pipe of the regenerator is in a preserved ranged of the saturation temperature, if so, a process is finished; if not, an opening of the refrigeration valve is adjusted, and the step 1 is executed. The invention provides the air conditioning regenerative device and the air conditioning regenerative control method for controlling a stability of the system and improving a heat exchanging effect of air conditioning.

Description

technical field [0001] The invention relates to an air conditioner heat recovery device and a control method thereof. Background technique [0002] At present, air conditioners generally use refrigerants with better heat exchange effects as refrigerants. However, since the pressure of the refrigerant with good heat exchange effect is relatively high and the flow rate is relatively fast, this will affect the heat exchange effect. Therefore, although the existing air conditioner has adopted the refrigerant with better heat exchange effect, it has not obtained good heat exchange effect. [0003] In the prior art, an air-cooled central air conditioner is provided with a regenerator between the condenser and the evaporator, which increases the heat exchange effect of the system. [0004] The application number is 02288785.7, and the Chinese utility model patent titled "circulation system combining double-effect combined cooling and heating absorption machine and solution dehumi...

AI Technical Summary

Problems solved by technology

In this way, it is difficult to exert the maximum capacity of the air conditioner, resulting in a relatively low energy efficiency of the air conditioner.

When the existing air conditioner is heating, the system exhaust temperature and exhaust pressure are too high, the air conditioner will frequently perform protection or reduce the frequency of the compressor, which will lead to unstable operation of the air conditioner and affect the service life

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