Household double-plate heat recovery fresh air ventilator unit

Abstract

The invention relates to a household double-plate heat recovery fresh air ventilator unit. The household double-plate heat recovery fresh air ventilator unit comprises a dehumidification unit and a heat recovery unit, the dehumidification unit comprises a first shell body, and a first air opening and a second air opening are formed in the top wall of the first shell body; an inner cavity of the first shell body is divided into an upper cavity and a lower cavity through a partition layer, an evaporator is arranged in the upper cavity, and a compressor, a water-cooled condenser and an expansiondevice are arranged in the lower cavity; and the heat recovery unit comprises a second shell body, a third air opening and a fourth air opening are formed in the bottom wall of the second shell body,the top wall of the second shell body is provided with an air return opening, an air supply opening, a fresh air opening and an exhaust opening, a first plate type heat exchanger and a second plate type heat exchanger which are distributed left and right are arranged in the second shell body, and the first plate type heat exchanger and the second plate type heat exchanger are obliquely arranged. The household double-plate heat recovery fresh air ventilator unit has the advantages of being simple in structure, convenient to assemble and disassemble, reliable in performance and remarkable in energy conservation; and the return air energy is recycled in different stages, so that the overall energy efficiency ratio of the unit is improved.

Description

Technical field [0001] The invention relates to an air conditioner, in particular to a household double-plate heat recovery fresh air unit. Background technique [0002] With the development of economy and society, people have higher and higher requirements for the living environment, which has promoted the rapid development of building energy saving and air-conditioning equipment, and various types of new fan units have appeared. The traditional fresh air unit mainly adopts the heat pump method. In summer, the refrigerant releases heat at the condenser on the one hand and discharges the heat through water cooling or air cooling. On the other hand, it absorbs heat at the evaporator to reduce the fresh air temperature. For the purpose of refrigeration and dehumidification, the fresh air is reheated by the reheater installed at the back of the evaporator to prevent the fresh air temperature from being too low to affect the indoor air quality. In winter, the flow direction of the r...

AI Technical Summary

Problems solved by technology

The traditional fresh air unit mainly has the following problems in practical application: it cannot effectively utilize the return air energy, resulting in high energy consumption of the unit and low overall energy efficiency; single function and poor environmental adaptability affect the utilization rate of the unit

Although this integrated fresh air unit can achieve a certain heat recovery function, its structure is relatively complex and its volume is large, which increases the difficulty of the preparation process; especially its air duct is difficult to design due to space constraints, and there are often many Steering at a large angle leads to large wind resistance and affects the balance of fresh air and return air, and its heat recovery efficiency and energy-saving effect are not ideal

At the same time, this integrated fresh air unit is difficult to transport and disassemble, which is not conducive to later inspection and maintenance.

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