Double-effect energy-saving type roof type air-conditioning unit

Abstract

The invention discloses a double-effect energy-saving type roof type air-conditioning unit, comprising a compressor, a condenser, a liquid reservoir, a drying filter, an electromagnet, a thermostatic expansion valve and an evaporator; the evaporator is connected with the compressor. The double-effect energy-saving type roof type air-conditioning unit not only satisfies the requirement of fresh air treatment, but sufficiently utilizes two energy recycling devices to recycle the energy of exhausted air and plays roles in energy conservation and emission reduction. The double-effect energy-saving type roof type air-conditioning unit can be applied to various commercial or civil buildings such as office buildings, high-grade residential buildings, restaurants and hospitals; and the large-scale unit can be applied to fresh air pretreatment of a central air-conditioner.

Description

technical field [0001] The invention relates to an air conditioner unit, in particular to a double-effect energy-saving roof-type air conditioner unit. Background technique [0002] With the development of my country's economy, energy problems are becoming more and more serious, and air conditioners are the main equipment that consumes energy. In the air-conditioning system, in order to meet the requirements of fresh air such as positive pressure in the room, personnel and sanitation, the air-conditioning system is generally designed with a large fresh air volume and exhaust air volume. Due to the relatively large load of fresh air, the cooling capacity that needs to be consumed is relatively large. At the same time, because the air with low temperature in the room is directly discharged to the atmosphere, energy is wasted. At present, a lot of research work has been done on exhaust air energy recovery at home and abroad, but they all use a single heat recovery method such ...

AI Technical Summary

Problems solved by technology

In the air-conditioning system, in order to meet the requirements of fresh air such as positive pressure in the room, personnel and sanitation, the air-conditioning system is generally designed with a large fresh air volume and exhaust air volume. Due to the relatively large load of fresh air, the cooling capacity that needs to be consumed is relatively large. At the same time, because the low-temperature air in the room is directly discharged into the atmosphere, energy is wasted

At present, a lot of research work has been done on exhaust air energy recovery at home and abroad, but they all use a single heat recovery method such as heat pipes, runners, and plate-fin types. Not fully efficient recycling

In addition, in order to meet the humidity requirements in the air conditioning system, the air is cooled by reheating (usually using electric heating, hot water heating or steam heating) to reach the required air supply state point, and there is a phenomenon of cold and heat offsetting, which causes waste of energy

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