A drying system for reducing defrosting temperature of air source heat pump
A technology of air source heat pump and drying system, which is applied in the directions of drying, drying machine, refrigeration and liquefaction, etc. It can solve the problems of lower energy efficiency ratio, lower equipment production capacity, lower heating capacity, etc., and achieve improved energy efficiency ratio, Improve the heating capacity of the equipment and the effect of improving the heating capacity
Active Publication Date: 2017-03-29
湖南省浏阳市择明热工器材有限公司
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Problems solved by technology
Therefore, when the air source heat pump fan works at an ambient temperature of 4°C or below, the actual energy efficiency ratio will be reduced by 20-25%. In the defrosting process, when defrosting, the heating of the equipment is not used for drying, which means that 18% of the time of equipment work per hour is not used for heating, which means that the heating capacity of the equipment is reduced by 18%. In other words, it will significantly reduce the production capacity of the equipment
At the same time, when the equipment switches from the defrosting condition to the heating condition, the heating capacity in the first few minutes is reduced, and the material cannot be heated
Method used
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[0021] Referring to the accompanying drawings, reflecting a specific structure of the present invention, the drying system for reducing the defrosting temperature of the air source heat pump includes an air source heat pump and a drying room 1, and the casing of the air source heat pump is divided into evaporator chambers and a condenser chamber; the evaporator chamber is divided into an air inlet chamber 9 and an air outlet chamber 6 by an evaporator 7, the air outlet of the air outlet chamber is provided with an evaporator fan 5, and the air inlet chamber is provided with a fresh air inlet 8;
[0022] The condenser chamber is divided into a return air chamber 4 and an air supply chamber 11 by a condenser 12. The return air chamber 4 is connected to the return air outlet 2 of the drying room 1. The return air chamber 4 supplies fresh air through the B air duct, and the air supply chamber 11 passes through The condenser fan 13 communicates with the air inlet of the drying room ...
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The invention discloses a drying system for reducing the defrosting temperature of an air-source heat pump, which comprises an air-source heat pump and a drying room. The humid-heat return air of the drying room is sent to the air inlet end of the evaporator through an air duct, and the evaporator is heated to increase the temperature of the evaporator. , so that the defrosting temperature can be reduced by 8-10°C, which largely avoids the adverse consequences brought about by the start of the defrosting process.
Description
technical field [0001] The invention relates to an air source heat pump technology. [0002] technical background [0003] The air source heat pump fan is mainly composed of a condenser, a condenser fan, a compressor, a four-way reversing valve, a throttling device, an evaporator, and an evaporator fan. The compressor, condenser, throttling device, evaporator, and Connect with working fluid pipes to form a circulation loop. [0004] The air source heat pump air blower is used as the heating equipment to dry agricultural products and other materials, and heat the materials with heat energy higher or significantly higher than the temperature of the materials. The heated air contacts the surface of the materials, the hot air cools down, and the materials absorb heat and the temperature rises. High, after the material is heated, its water absorbs heat and evaporates or vaporizes from the surface to the inside, and the water molecules together with the heating medium become hot a...
Claims
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IPC IPC(8): F26B21/04F25B41/00F25B41/40
Inventor 汤世国
Owner 湖南省浏阳市择明热工器材有限公司