A Novel Air Supplementary Enthalpy Increase System and Its Control Method

Abstract

The invention discloses a novel air supply and enthalpy increasing system and a control method thereof. A frequency converter module of the system is arranged between an air supply electromagnetic valve and a compressor air supply opening, the frequency converter module is provided with a frequency converter module temperature detection device, and a frequency converter module heat exchange device is arranged at the bottom of the frequency converter module. Flash evaporation refrigerating fluid in a flash-tank enters the frequency converter module heat exchange device through the air supply electromagnetic valve, the frequency converter module heat exchange device exchanges heat with the frequency converter module, and accordingly the temperature of the frequency converter module is lowered. The frequency converter module temperature detection device is connected with a master controller. The master controller is connected with the air supply electromagnetic valve, a first electronic expansion valve arranged between the flash-tank and an indoor heat exchanger, and a second electronic expansion valve arranged between the flash-tank and an outdoor heat exchanger. The invention further provides the control method of the system. The problems that according to an existing air supply and enthalpy increasing technology, under a hostile working condition, namely an ultralow temperature or superhigh temperature working condition, the temperature of the frequency converter module is excessively high, so that the stability of the frequency converter module and even the entire air supply and enthalpy increasing system gets worse, and the service life is shortened can be solved.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning and refrigeration engineering, and relates to a novel air-supplementing and enthalpy-increasing system and a control method thereof. Background technique [0002] At present, the application of air supplementation and enthalpy increase technology to room air conditioners is to solve the problems of room air conditioners under harsh working conditions, namely ultra-low temperature or ultra-high temperature conditions, insufficient heating or cooling capacity of the system, low energy efficiency, and high exhaust temperature. one of the effective options. However, when the air supply and enthalpy increasing system is running at high frequency, the high temperature of the inverter module will become the main factor hindering the safe and efficient operation of the system, especially in the ultra-high temperature condition, the inverter module generates a lot of heat during operation, At pre...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the above-mentioned prior art, the object of the present invention is to provide a new air supplement enthalpy increasing system and its control method, which can solve the problem of the existing air supplement enthalpy increasing technology under severe working conditions, namely ultra-low temperature or ultra-high temperature working conditions. , there are problems such as poor stability and shortened service life of the inverter module and even the entire air supply and enthalpy increasing system due to the high temperature of the inverter module

Images