Three-pipe-control total-heat-treating multi-split air conditioning system and independent temperature and humidity control method

Abstract

The invention discloses a three-pipe-control total-heat-treating multi-split air conditioning system and an independent temperature and humidity control method. The system comprises an indoor unit, an outdoor unit, a high-pressure air pipe, a low-pressure air pipe, a high-pressure liquid pipe, a second electromagnetic valve and a third electromagnetic valve, wherein a first end of the outdoor unit is connected with one end of the high-pressure air pipe, the other end of the high-pressure air pipe is connected with a first end of the indoor unit and one end of the third electromagnetic valve, and the other end of the third electromagnetic valve is connected with a second end of the indoor unit; a second end of the outdoor unit is connected with one end of the low-pressure air pipe, the other end of the low-pressure air pipe is connected with a third end of the indoor unit and one end of the second electromagnetic valve, and the other end of the second electromagnetic valve is connected with a second end of the indoor unit; and a third end of the outdoor unit is connected with one end of the high-pressure liquid pipe, and the other end of the high-pressure liquid pipe is connected with a fourth end of the indoor unit. With the adoption of the system and the method, mounting and construction costs of long piping can be reduced, and the universality is improved.

Description

technical field [0001] The invention relates to a multi-connected air conditioner control technology, in particular to a multi-connected air conditioner system with three-control full heat treatment and an independent control method for temperature and humidity. Background technique [0002] With the continuous improvement of people's living standards, installing air-conditioning systems in living and indoor working environments to improve the comfort of living and working environments has become an important choice for people to improve their comfort needs. Among them, multi-connected air-conditioning technology is an important direction for the development of air-conditioning due to its advantages of free control, high efficiency and energy saving, and easy installation and maintenance. [0003] The multi-connected air conditioning system is mainly used to control the indoor temperature and humidity, and generally includes one or more outdoor units, one or more indoor unit...

AI Technical Summary

Problems solved by technology

In this multi-connected air-conditioning system, the indoor unit part can realize independent control of temperature and humidity through the switching between the condenser and the evaporator, with a compact structure and high equipment integration; moreover, by recovering the cooling and heat of the return air, making The evaporation temperature of the multi-connected air-conditioning system is high and the condensation temperature is low, so that the energy efficiency ratio of the multi-connected air-conditioning system is high, and the energy efficiency ratio of the multi-connected air-conditioning system is improved; however, the outdoor unit 01 in this improved technical solution It is a four-pipe system, that is, the outdoor unit 01 and the indoor unit 02 are connected through four refrigerant pipes, so that the installation and construction costs are increased in the case of long piping; The heat recovery multi-line product is a three-control system, so the improved technical solution cannot be integrated with the existing multi-functional multi-line product and heat recovery multi-line system, and the versatility is low

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