Heat pump dehumidifier

Abstract

The invention relates to a heat pump dehumidifier which comprises an air treatment system, a refrigerant circulating system and a cooling water circulating system, wherein the air treatment system comprises a second evaporator, a first condenser and a blower passed by air required to be processed; the refrigerant circulating system adopts the structure that a compressor outlet is connected with the first condenser and a second condenser, which are connected with each other in parallel; a compressor inlet is connected with a first evaporator and the second evaporator, which are connected with each other in parallel; after being connected in parallel, the first condenser and the second condenser are connected with the first evaporator and the second evaporator, which are connected with each other in parallel; the refrigerant circulating system correspondingly comprises a solenoid valve, an expansion valve and the like connected with one another in parallel; the flowing direction of a refrigerant is changed through the solenoid valve to realize switching between refrigerating circulation and heat pump heating circulation; and the cooling water circulating system comprises the second condenser and the first evaporator passed by cooling water in sequence. The heat pump dehumidifier has the beneficial effects that the heat pump dehumidifier not only has a dehumidification function, but also has a heating function of a heat pump; and meanwhile, the switching between a dehumidification refrigerating circulation and a heat pump heating circulation can be realized without a four-way reversing valve.

Description

[0001] technical field [0002] The invention relates to a dehumidifier, in particular to a dehumidifier with a heat pump heating function. [0003] Background technique [0004] The purpose of building air conditioning is to discharge indoor waste heat and humidity outside and provide fresh air that meets hygienic requirements. The loads of the air conditioning system include: indoor cooling load, indoor humidity load, fresh air cooling load, and fresh air humidity load. In civil air defense, national defense, swimming pools and other occasions, the humidity load is large, especially in summer, the general air conditioner cannot meet the dehumidification requirements, and a dehumidifier is required; in winter, especially in the northern and western regions, the fresh air is dry and the temperature is low, so the air conditioning system is no longer needed Dehumidification or dehumidification needs to be very small, and heating is required at the same time. Ordinary dehum...

AI Technical Summary

Problems solved by technology

In civil air defense, national defense, swimming pools and other occasions, the humidity load is large, especially in summer, the general air conditioner cannot meet the dehumidification requirements, and a dehumidifier is required; in winter, especially in the northern and western regions, the fresh air is dry and the temperature is low, so the air conditioning system is no longer needed Dehumidification or the amount of dehumidification needs to be small, and heating is required at the same time. Ordinary dehumidifiers, temperature-adjusting dehumidifiers, etc. cannot meet the heating requirements, and an air conditioning system is required.

If it is equipped with a dehumidifier and a heat pump air conditioner at the same time, the air conditioning system is complicated and the initial investment is large; the ordinary dehumidifier with heat pump function uses a four-way reversing valve to realize the reversing cycle of the refrigeration system, the refrigeration system is complicated, the failure rate is high, and the dehumidification , The heat pump heating function cannot be realized at the same time

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