Computer room air conditioning control system based on multi-connected air conditioners

Abstract

The invention relates to a machine room air conditioner control system and a method based on a multi-connected air conditioner, and mainly solves operation reliability, stability and long life of machine room electronic equipment in high-humidity low-temperature regions. Each machine room air conditioner terminal adjusts openness or opening / closing of an electronic expansion valve to keep the machine room temperature stable according to environmental hot and wet loads; an electromagnetic valve independent temperature control system of each terminal is cooperated with a host machine of the multi-connected air conditioner to adjust the frequency of a variable frequency compressor to guarantee the refrigerant flow needed by normal system work; an electronic expansion valve of an independent dehumidifying and cooling module is always operated by a certain openness to guarantee continuous operation of the host machine of the multi-connected air conditioner and constant humidity of the machine room; and each terminal system is cooperated with a host machine control system to guarantee reliability, long life and ultralow-energy consumption operation of machine room electronic equipment. The machine room air conditioner control system is excellent in application value and broad in application prospect.

Description

technical field [0001] The invention relates to an air conditioner control method, in particular to a control system based on a multi-connected computer room air conditioner which solves the temperature and humidity guarantee for the reliable operation of electronic equipment in a computer room in a high-humidity and low-temperature area. Background technique [0002] There are a large number of electronic equipment installed in the industrial computer room, especially the communication computer room. Its normal operation requires a stable temperature and humidity environment in the computer room. The precision air conditioner in the computer room is specially designed according to the environmental temperature and humidity requirements of various electronic equipment in the computer room. The basic working principle of the air conditioning system is similar to the comfort air conditioners used in homes and offices, but due to its highly reliable hardware configuration, it ca...

AI Technical Summary

Problems solved by technology

In addition, the intermittent start-up and shutdown of the mainframe is likely to cause large fluctuations in indoor temperature and humidity. The high humidity in the environment during the intermittent shutdown of the mainframe is likely to cause failure and damage to the electronic equipment in the computer room, and the intermittent start-up and shutdown of the mainframe consumes more power. (The starting current is more than 3 times the normal operating current), which is easy to cause energy waste

Based on the above problems, the present invention proposes a computer room air-conditioning control system based on multi-connected air conditioners. By adding independent dehumidification and cooling modules and multi-connected air-conditioning systems to work together, it successfully solves the problem of difficult startup and intermittent startup of the host in high-humidity and low-temperature areas. The temperature and humidity fluctuations caused by shutdown and the loss of equipment in the computer room due to high humidity make up for the defects in the existing air conditioning control methods in the computer room

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