A multi-heat exchanger window air conditioner with fresh air function

Abstract

The invention relates to a multi-heat exchanger window type air conditioner with a fresh air function. The multi-heat exchanger window type air conditioner with the fresh air function comprises a refrigerating fluid flow path and an air flow path, wherein the refrigerating fluid flow path comprises a compressor (1), a four-way reversing valve (2), an outdoor coil pipe (3), an exhaust coil pipe (16), a throttling device (4), a fresh air coil pipe (5) and an air supply coil pipe (6) which are connected in sequence to form a closed circulation loop; the air flow path comprises an indoor air supply flow path and an outdoor air exhaust flow path, wherein the indoor air supply flow path comprises a first air return branch and a first fresh air branch, and the first air return branch and the first fresh air branch are converged and then enter a room; the outdoor air exhaust flow path comprises a second air return branch and a second fresh air branch, after the second air return branch and thesecond fresh air branch are converged, the second air return branch and the second fresh air branch enter the outdoor coil pipe (3) and then is discharged out of the room. Compared with the prior art, the air conditioner can reduce the loss of fresh air and return air mixed air, meanwhile, the energy in the return air can be recycled better, the energy efficiency of the system is improved, and the working condition range of system frosting is reduced.

Description

technical field [0001] The invention relates to a window type air conditioner, in particular to a multi-heat exchanger window type air conditioner with fresh air function. Background technique [0002] A window air conditioner is a small air conditioner that can be mounted on a window. Window-type air conditioners are manufactured with less materials, and the cost is low. The use price is relatively low. At the same time, as an all-in-one unit, the window air conditioner has relatively low installation requirements and low technical requirements. Moreover, window air conditioners save electricity compared with ordinary air conditioners because their cooling loss is relatively small. The window air conditioner has the characteristics of compact structure, small size, light weight, and convenient installation. However, the investigation found that the common window air conditioners on the market do not have the fresh air function themselves, and cannot meet people's demand ...

AI Technical Summary

Problems solved by technology

However, the current window air conditioners with fresh air also have some deficiencies. From a thermodynamic point of view, the introduction of fresh air and the direct mixing of return air will cause Loss, loss of part of the energy of the low temperature return air

Window air conditioners using heat exchangers can only treat the temperature of fresh air, but cannot dehumidify, and the heat recovery in this way is limited by the return air temperature, and the energy that can be recovered is relatively small

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