Fresh air heat exchange unit and control method thereof

Abstract

The invention belongs to the technical field of heat exchange, and particularly provides a fresh air heat exchange unit and a control method thereof. According to the fresh air heat exchange unit, the problems that an existing fresh air system and an existing heat exchange system operate independently, so that the equipment cost is high, installation is troublesome, and the occupied space is large are solved. Therefore, the fresh air heat exchange unit comprises an outdoor unit, a heat exchange unit, an indoor unit and an air processing unit, the indoor unit can exchange heat with indoor air, the outdoor unit can exchange heat with the indoor unit in the heat exchange unit, and the air processing unit can process the outdoor air and then send the outdoor air into a room, a dehumidification evaporator is arranged in the air processing unit and connected with the outdoor unit, so that a refrigerant in the outdoor unit can flow into the dehumidification evaporator, and the introduced air is dehumidified. According to the fresh air heat exchange unit, the heat exchange function and the fresh air function can be achieved at the same time through one outdoor unit, the overall cost of the unit is effectively reduced, the occupied space of the unit is reduced, and the unit installation process is simplified.

Description

technical field [0001] The invention belongs to the technical field of heat exchange, and specifically provides a fresh air heat exchange unit and a control method thereof. Background technique [0002] With the continuous development of heat exchange technology, users have put forward higher and higher requirements for the comprehensive performance of air conditioning units. In order to enable the air conditioning unit to effectively meet the user's needs for constant temperature, humidity, constant cleanliness, and constant oxygen in the indoor environment, many existing air conditioning units are equipped with heat exchange systems and fresh air systems at the same time. The heat exchange system is used to meet the user's requirements for the environment. Constant temperature requirements, and the fresh air system is used to meet the user's requirements for constant humidity, constant cleanliness, and constant oxygen in the environment. Although the existing air-conditio...

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Problems solved by technology

[0004] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problems of high equipment cost, troublesome installation and large occupied space caused by the independent operation of the existing fresh air system and the heat exchange system, the present invention provides a fresh air heat exchange unit, It is characterized in that the fresh air heat exchange unit includes an outdoor unit, a heat exchange unit, an indoor unit and an air handling unit, the indoor unit can exchange heat with indoor air, and the outdoor unit can communicate with the indoor unit in the The heat exchange is realized in the heat exchange unit, and the air treatment unit can treat the outdoor air and send it into the room. The air treatment unit is provided with a dehumidification evaporator, and the dehumidification evaporator is connected with the outdoor unit so that the The refrigerant in the outdoor unit can flow into the dehumidification evaporator, thereby dehumidifying the introduced air

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