High-comfort-degree secondary return air room air conditioner with supply air temperature adjustable

Abstract

Provided is a high-comfort-degree secondary return air room air conditioner with the supply air temperature adjustable. The high-comfort-degree secondary return air room air conditioner is used for adjusting indoor temperature and humidity of residential houses and public buildings. Secondary return air bypass valves are additionally arranged on the basis of a front panel, an upper panel or a left panel and a right panel of a traditional room air conditioner, are in a closed mode or in an automated mode and can be artificially controlled through a remote control; secondary return air bypass air ducts can be located on the upper portion, the lower portion, the left, the right or the air outlet side of an evaporator and selected according to installation convenience; and temperature sensors are respectively arranged at the positions of a return air port and a supply air port and used for controlling opening of the bypass valves and the secondary return air volume. When in the closed mode, the bypass valves keep the closed state, and the supply air temperature is the evaporator outlet temperature. When the bypass valves are in the automated mode, the opening of the bypass valves can be adjusted according to return air and supply air temperature difference and is increased when the temperature difference is too large, and the supply air temperature is increased; the opening of the bypass valves is reduced or even closed when the temperature difference is small, and the supply air temperature is reduced.

Description

technical field

[0001] The invention belongs to an air-supply temperature-adjustable high-comfort secondary air-return room air conditioner for indoor temperature and humidity adjustment in residential houses, public buildings and the like. Background technique

[0002] At present, in the room air conditioners used indoors such as residential houses and public buildings (hereinafter referred to as "traditional room air conditioners"), the return air is directly sent out after being processed by the evaporator, and the temperature of the air supply cannot be adjusted. or 13°C) cold wind blowing directly on the human body will cause discomfort, and even cause joint pain and other symptoms if things go on like this. At present, there is no room air conditioner on the market that regulates the temperature of the air supply by means of secondary return air. As people's requirements for comfort are getting higher and higher, it is necessary to develop a high-comfort secondary ret...

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