Heat pump drying system

A technology of heat pump drying and heat pump system, which is applied in the direction of drying, drying machine, fluid heater, etc., can solve the problems of attenuation of dehumidification capacity and large fluctuation of humidity in the air duct, etc., and achieve the goal of no capacity attenuation and high drying efficiency Effect

Active Publication Date: 2018-12-07
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

[0006] The purpose of the present invention is to provide a heat pump drying system to solve the technical problems existing in the prior art that the dehumidification capacity of the compound dryer is attenuated during defrosting and the humidity in the air duct fluctuates greatly

Method used

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  • Heat pump drying system

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Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0043] Such as figure 1 As shown, a heat pump drying system provided by the present invention includes a heat pump system and a circulating air duct 1 for circulating the working medium in the drying room 8. A compressor 2 and a condensing device 3 are arranged on the refrigerant flow path of the heat pump system. , throttling element, main evaporator 4 and auxiliary evaporator 5, condensing device 3 and main evaporator 4 are located in the circulating air duct...

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Abstract

The invention provides a heat pump drying system, relates to the technical field of drying equipment, and solves the technical problems of attenuated dehumidification capacity during defrosting and high humidity fluctuation in an air way. The heat pump drying system comprises a heat pump system and a circulating air way; a compressor, a condensation device, an expansion valve, a main evaporation device and an auxiliary evaporation device are arranged on a refrigerant flowing way of the heat pump system; the condensation device and the main evaporation device are both positioned in the circulating air way; the auxiliary evaporation device is positioned outdoors; and when the auxiliary evaporation device is in a defrosting state, the main evaporation device is located in a heat absorption and dehumidification state. The heat pump drying system achieves high drying efficiency and energy conservation, has two functions of dehumidification and hot air drying, is precise in humidity controland suitable for multiple use environments to meet multiple drying requirements, still can perform the dehumidification during defrosting, and is free of system capacity attenuation during defrosting.

Description

technical field [0001] The invention relates to the technical field of drying equipment, in particular to a heat pump drying system. Background technique [0002] In recent years, due to site factors, weather factors, national policies and energy consumption factors, traditional air drying technology and fuel drying technology will gradually fade out of the market. Heat pump drying technology is a new type of efficient drying technology. Relevant research data show that , The heat pump drying market is estimated to have a holding capacity of over one trillion yuan. [0003] The principle of the traditional open heat pump hot air dryer is: the heat pump low-temperature evaporator absorbs the heat of the air outside the drying room and transfers it to the drying room, heats the air in the drying room to heat up, and the hot air absorbs the moisture in the material, resulting in high temperature and high temperature. The humid hot air is discharged out of the drying room throu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B21/00F26B21/06F24H4/06F24H9/20
CPCF24H4/06F24H9/20F26B21/001F26B21/06
Inventor 郑神安谷月明王晓红张鸿宙
Owner GREE ELECTRIC APPLIANCES INC
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