Air conditioning system and low-temperature starting control method of air conditioning system

Abstract

The invention discloses an air conditioning system, an air conditioning system low-temperature starting control method and an air conditioning system. The air conditioning system comprises a compressor, a condenser, a liquid storage device, an expansion valve, an evaporator and a connecting pipeline, and further comprises an electromagnetic valve and the connecting pipeline arranged between the condenser and the liquid storage device; the pressure sensor is arranged on the connecting pipeline between the compressor and the condenser and is used for detecting the exhaust pressure of the compressor; the controller is connected with the pressure sensor and the electromagnetic valve so as to control the electromagnetic valve to be switched on when the exhaust pressure detected by the pressure sensor is larger than the preset pressure and control the electromagnetic valve to be switched off when the exhaust pressure detected by the pressure sensor is smaller than the preset pressure. According to the air conditioning system, the pressure difference needed by normal operation of the compressor can be rapidly established when the air conditioning system is started in the low-temperature environment, and safe and stable operation of the compressor and the air conditioning system is guaranteed.

Description

technical field [0001] The present application relates to the field of air conditioning, and in particular, to an air conditioning system and a low temperature startup control method of the air conditioning system. Background technique [0002] The equipment in the data room has stable heat dissipation throughout the year, and the data room is sealed and well insulated. Therefore, air conditioning is required to operate even in cold winter. In some low-latitude regions, when the outdoor ambient temperature is lower than -15°C, the air conditioner cannot operate in a low-temperature environment without technical means to assist in establishing the pressure difference required for the normal operation of the compressor. In order to solve the problem of the refrigeration operation of the air conditioner in a low temperature environment, the existing technology is to add a low temperature option, which has the problem of a long time to establish the pressure difference, especial...

AI Technical Summary

Problems solved by technology

In some low-latitude areas, when the outdoor ambient temperature is lower than -15°C, if no technical measures are taken to assist in establishing the pressure difference required for the normal operation of the compressor, the air conditioner cannot operate in a low-temperature environment.

In order to solve the problem of cooling operation of the air conditioner in a low temperature environment, the existing technology is to add a low temperature option. This method has the problem that it takes a long time to establish a pressure difference. Especially in the inverter air conditioning system, it takes a longer time to establish a pressure difference, increasing the compression machine damage risk

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