Heat-recovering air conditioner

Abstract

The invention relates to a heat-recovering air conditioner and aims to use indoor exhausted air as a part of the heat-exchanging air of an outdoor unit to recover the energy of the indoor exhausted air, improve the quality of the heat-exchanging air of the outdoor unit and enhance the property of a machine set; and meanwhile, an indoor unit and the outdoor unit are arranged in an integrated machine case and located in the indoor space, so that the air conditioner is applied to the place in which the outdoor unit cannot be placed. According to the invention, the air conditioner comprises an indoor air system, an outdoor air system and a refrigerating system, wherein the indoor air system consists of return air A, fresh air B, supply air C and a fan (3); the outdoor unit air system consists of fresh air D, return air E, exhaust air F and a fan (7); and the refrigerating system consists of an indoor heat exchanger (1), an expansion valve (2), a four-way reversing valve (4), a compressor (5) and an outdoor heat exchanger (6).

Description

1. Technical field [0001] The invention relates to an air conditioner, in particular to an air-cooled heat recovery air conditioner which utilizes indoor exhaust air to pass through an outdoor heat exchanger, and the indoor unit and the outdoor unit are installed in an integrated casing. 2. Background technology [0002] The city's underground civil air defense projects are changed to underground shopping malls and other civilian facilities. The characteristic is that cooling towers and air-cooled outdoor units cannot be placed on the ground, which brings problems to the selection and installation of air conditioners in shopping malls. [0003] However, it must be provided with multiple fresh air shafts and exhaust shafts to solve indoor ventilation. [0004] In addition, there are many people in the underground shopping mall, the fresh air volume and exhaust air volume are large, and the indoor air is directly discharged, which does not save energy; if a new exhaust air ene...

AI Technical Summary

Problems solved by technology

[0003] However, it must be provided with multiple fresh air shafts and exhaust shafts to solve the problem of indoor ventilation.

[0004] In addition, there are many people in the underground shopping mall, the fresh air volume and exhaust air volume are large, and the indoor air is directly discharged, which does not save energy; if a new exhaust air energy recovery device is installed, the initial investment is large, the efficiency is low, and the recovery cycle is long.

[0005] It is not allowed to install water-cooled air conditioners (cooling water towers) in areas with insufficient water sources such as the north, while outdoor units of air-cooled air conditioners are prone to frost and low efficiency when they are running in winter

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