Heat pump system, heat pump drying system and control method of heat pump drying system
A heat pump system and auxiliary heat exchange technology, applied in heat pump, drying, dryer and other directions, can solve the problems of slow startup process and inability to adjust temperature, and achieve the effect of reducing system cost and simple structure
Pending Publication Date: 2018-01-09
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0003] In view of this, one of the objectives of the present invention is to provide a heat pump system, a heat pump drying system and a control method thereof that can simultaneously solve the problems of slow start-up process and inability to adjust the temperature of the existing heat pump drying system, and have a simple structure and low cost
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[0045] The present invention is described below based on the embodiments, and those skilled in the art should understand that the drawings provided here are for the purpose of illustration, and the drawings are not necessarily drawn to scale.
[0046] Unless the context clearly requires, throughout the specification and claims, "comprises", "comprises" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive meaning; that is, "including but not limited to" meaning.
[0047] The present application provides a heat pump system. The specific structure of the heat pump system is described below by taking the application of the heat pump system in a heat pump drying system as an example. Of course, it can be understood that the heat pump system is also applicable to other systems with similar heat exchange requirements. Such as figure 1 As shown, the heat pump drying system includes a heat pump system, a circulation channel and a heat pi...
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The invention provides a heat pump system, a heat pump drying system and a control method of the heat pump drying system. A compressor, a condenser, a throttling element and an evaporator are arrangedon a refrigerant flow passage of the heat pump system, and an auxiliary heat exchanging device and a switching assembly are further arranged. The auxiliary heat exchanging device can be selectively connected to the interior of a pipeline between an air outlet of the compressor and a refrigerant inlet of the throttling element under the effect of the switching assembly, or connected to the interior of a pipeline between an refrigerant outlet of the throttling element and an air suction port of the compressor. The heat pump system is provided with the auxiliary heat exchanging device, the auxiliary heat exchanging device can selectively serve as a condenser or an evaporator to be used under the effect of the switching assembly so as to meet different heat exchanging requirements, when the auxiliary heat exchanging device is applied into the heat pump drying system, the problems that the starting process is slow and temperature adjustment cannot be conducted existing in the heat pump drying system can be solved through the same auxiliary heat exchanging device simultaneously, the structure is simple and the system cost is lowered.
Description
technical field [0001] The invention relates to the field of heat pumps, in particular to a heat pump system, a heat pump drying system and a control method thereof. Background technique [0002] In the conventional closed heat pump drying system, since both the evaporator and the condenser are arranged in a closed circulating air duct, there are problems of slow start-up process and inability to adjust the temperature. In the existing structure, generally by adding auxiliary evaporation to the system The start-up speed of the system is improved by using a condenser or an auxiliary heater, and the temperature of the system is adjusted by adding an auxiliary condenser or an auxiliary cooler in the system, which has a complicated structure and increases the cost of the system. Contents of the invention [0003] In view of this, one of the objectives of the present invention is to provide a heat pump system, a heat pump drying system and a control method thereof that can simu...
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IPC IPC(8): F25B30/02F25B41/04F25B41/06F25B49/02F26B23/00F25B41/20F25B41/34
Inventor 李欣黄玉优叶强蔚李冰韩鹏林邓李娇
Owner GREE ELECTRIC APPLIANCES INC