Temperature and humidity regulable set for parallel type heat pump

Abstract

The invention is a kind of parallel heat pump temperature and humidity adjusting unit, which belongs to cooling, air conditioning and humidity eliminating technology field. The invention has a compressor, outdoor heat exchanger, the first and the second indoor heat exchanger and the restriction device, all of which are connected into a cooling circle through the cooling agent pipe, the outdoor heat exchanger and the second indoor exchanger are paralleled, the unit also includes a four-way valve. The invention can realize four kinds of different running mode through the four-way valve, and realizes quick frost eliminating without stop. The invention can satisfy the demands of large change of cold and hot load, and it can carries on micro adjustment through the on / off of the two electromagnetism valves on the two paralleled heat exchanger branches and adjusting the wind quantity and the water quantity in outdoor heat exchanger. The invention upgrades the utilization ratio of the device.

Description

technical field [0001] The invention relates to a refrigeration dehumidification device, in particular to a heat pump type temperature-regulating dehumidification device, which belongs to the technical fields of refrigeration, air conditioning and dehumidification. Background technique [0002] Refrigerated dehumidifiers use evaporators to cool and dehumidify the air, and recover the condensation heat of the system to make up for the heat lost in the air due to cooling and dehumidification. And dehumidification and temperature control of high humidity space. [0003] At present, there are two main types of refrigerated dehumidifiers in my country: heating type and temperature regulating type. The heating type dehumidifier is composed of an indoor condenser and an indoor evaporator. While dehumidifying the room, it also dissipates the condensation heat to the room to heat the indoor air. In order to further improve the heating capacity and the outlet air temperature, an eva...

AI Technical Summary

Problems solved by technology

Since the outdoor heat exchanger 1 has to bear more condensation heat and the second indoor heat exchanger 2 recovers very little condensation heat, such a system can only be applied to situations where cooling is required indoors or the heat load is relatively small. When the heat load is relatively large, the heating capacity of the system is insufficient to meet the requirements, and when the indoor temperature is relatively low, the first indoor heat exchanger 5 is prone to frost, and it is necessary to defrost by shutting down or using auxiliary electric heating In addition, the temperature is adjusted by the on-off of the solenoid valve 3, and the frequent on-off makes the solenoid valve 3 very easy to damage

[0004] To sum up, the current dehumidification and temperature adjustment scheme can only be applied to relatively specific environmental requirements, with poor adjustment ability and small scope of application. However, my country's climate types are diverse, and the temperature difference between winter and summer is large in most areas, and the heat / cold / humidity load varies with The time changes obviously, such a system cannot well meet the actual needs, and the use time is short throughout the year, which also causes idleness and waste of equipment

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