A heat pump type air conditioning system and its control method

An air-conditioning system, heat pump technology, applied in the field of heat pump air-conditioning system and its control, can solve the problem of oil accumulation, achieve the effect of reducing the flow height, reducing the distance, and suppressing the overheating of the fuselage

Active Publication Date: 2018-01-19
HANGZHOU SANHUA RES INST CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0009] In order to solve the problem of oil accumulation in the parallel flow heat exchanger in the existing heat pump system when it is used as an evaporator, the present invention provides a heat pump type air conditioning system, which is connected by pipelines and can constitute a refrigeration cycle loop and a heating cycle The compressor, four-way valve, indoor heat exchanger, throttling device and outdoor heat exchanger of the circuit; the outdoor heat exchanger acts as a condenser in the refrigeration cycle and as an evaporator in the heating cycle The device also includes a windshield device, the windshield device is arranged on the windward side or the leeward side of the outdoor heat exchanger, and the windshield device can selectively open or cover a part of the outdoor heat exchanger

Method used

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  • A heat pump type air conditioning system and its control method
  • A heat pump type air conditioning system and its control method
  • A heat pump type air conditioning system and its control method

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Embodiment Construction

[0027] The present invention provides a heat pump air-conditioning system, which includes a compressor 1 connected by pipelines and capable of forming a circulating loop, a four-way valve 2, an indoor heat exchanger 3, a throttling device 4, and an outdoor heat exchanger 5, wherein the outdoor heat exchanger A windshield device 6 is arranged at the front side of the windward side or the leeward side of the heater, and the windshield device can selectively open or cover a part of the outdoor heat exchanger, that is, the windshield device can be used as the evaporation When the outdoor heat exchanger is used as a condenser, it blocks heat exchange on the part corresponding to the windshield device, which reduces the heat exchange area of ​​the outdoor heat exchanger. However, when the outdoor heat exchanger is used as a condenser, it does not have a blocking function. In this way, under heating conditions, reducing the heat exchange area of ​​the outdoor heat exchanger through th...

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Abstract

The present invention provides a heat pump air-conditioning system and its control method. At the front side of the windward side or the leeward side of the outdoor heat exchanger, the windshield device can selectively open or cover a part of the outdoor heat exchanger, and when the outdoor When the heat exchanger is used as a condenser, the windshield device is opened, and the outdoor air can enter the outdoor heat exchanger through the windshield device; when the outdoor heat exchanger is used as an evaporator, the windshield device is closed or partially opened state, the outdoor air passes through the upper part of the outdoor heat exchanger for heat exchange, and no outdoor air or less outdoor air enters the lower part of the outdoor heat exchanger for heat exchange. This invention not only does not affect the performance of the air conditioning system, but also solves the problem of When the outdoor heat exchanger is used as an evaporator, there will be a problem of oil accumulation.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, in particular, the invention relates to a heat pump type air conditioning system with a windshield device and a control method thereof. Background technique [0002] The parallel flow heat exchanger is mainly composed of microchannel flat tubes, cooling fins and headers. There are headers at both ends of the microchannel flat tubes for distributing and collecting refrigerant. Corrugated or shutter-shaped cooling fins are arranged between adjacent microchannel flat tubes to enhance the heat exchange efficiency between the evaporator and the air side. Among them, the outdoor heat exchanger made of parallel flow heat exchanger is used as a condenser in summer and as an evaporator in winter. This design is widely used in heat pump type air conditioning systems. [0003] However, in the heat pump air-conditioning system, it is a relatively common problem that the lubricating oil of the com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B39/00
Inventor 不公告发明人
Owner HANGZHOU SANHUA RES INST CO LTD
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