Heat recovery external unit system and air conditioner system

Abstract

The invention discloses a heat recovery external unit system and an air conditioner system. The heat recovery external unit system comprises a compressor (1), a high-pressure air pipe (2), a first branch (5), a second branch (6) and a third branch (7); the first branch (5), the second branch (6) and the third branch (7) are arranged in parallel; a first outdoor heat exchanger (8) is arranged on the first branch (5); a second outdoor heat exchanger (9) is arranged on the second branch (6); and when the air conditioner system is positioned in a low temperature refrigeration mode where the outdoor temperature is lower than a first preset temperature, or is positioned in a high temperature heating mode where the outdoor environment temperature is higher than a second preset temperature, one of the first branch (5) and the second branch (6) is connected and the other one is disconnected, and the third branch (7) communicates with the high-pressure air pipe (2), wherein the first preset temperature is lower than the second preset temperature. According to the heat recovery external unit system, a situation that rapid refrigeration is realized in a low temperature environment or rapid heating is realized in a high temperature environment can be ensured, and the use comfort of an air conditioner is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a heat recovery external unit system and an air conditioning system. Background technique [0002] With the development of society and the consumption of energy, energy saving, environmental protection and sustainable development have become important issues that need to be solved urgently in today's society. In the field of air conditioning, the heat recovery multi-connected outdoor unit can cool down the room that needs to be cooled. At the same time, the evaporator of the indoor unit that needs to be heated in other rooms is transformed into a condenser, using the heat generated by the condensation of the refrigerant. The indoor temperature can be heated; a hot water generator can also be connected to the indoor side to heat domestic water to a certain extent, realizing the secondary utilization of energy, greatly reducing energy waste, and at the same time slowing do...

AI Technical Summary

Problems solved by technology

In some special areas, it is necessary to turn on the heat recovery mode, that is, to cool some rooms and heat some rooms at the same time. In this way, there may be the following situations. When the outdoor ambient temperature is low, the cooled room does not feel cold, or in When the outdoor ambient temperature is high, the heated room does not feel hot, which affects the comfort of the air conditioner

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