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Heat pump system

A heat pump system and outdoor heat exchanger technology, applied in the field of air conditioning, can solve the problems of reducing compressor and system life, increasing maintenance and use costs, compressor and system damage, etc., to improve system reliability and improve liquid shock phenomenon Effect

Active Publication Date: 2014-10-29
HEFEI MIDEA HEATING & VENTILATING EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this traditional heat pump system is prone to cause liquid shock of the compressor during defrosting operation, which will cause certain damage to the compressor and the system, reduce the life of the compressor and the system, and increase maintenance and use costs
Moreover, for a heat pump system with a large number of horsepower, a large-volume gas-liquid separator is often required, resulting in an excessively large overall volume of the heat pump system, and the separation effect is limited, and the safety of the system operation is poor.

Method used

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0021] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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Abstract

The invention discloses a heat pump system which comprises a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, gas-liquid separators, first control valves and second control valves. An exhaust port of the compressor is connected with an exhaust interface of the four-way valve. The outdoor heat exchanger is connected with an outdoor heat exchanger interface of the four-way valve. The indoor heat exchanger is connected with the outdoor heat exchanger and an indoor heat exchanger interface of the four-way valve respectively. The gas-liquid separators are arranged in series, and the two gas-liquid separators located on the two sides are connected with an air suction interface of the four-way valve and an air suction opening of the compressor respectively. One end of each first control valve is connected with the air suction opening of the compressor, the other end of each first control valve is connected with an outlet of the gas-liquid separator, closer to the air suction interface of the four-way valve, of any two adjacent gas-liquid separators. The two ends of each second control valve are connected with any two adjacent gas-liquid separators respectively. By means of the heat pump system, one-stage or multi-stage gas-liquid separation is achieved, reliability of the system is improved, and the liquid impact phenomenon existing in the compressor is reduced.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, in particular to a heat pump system. Background technique [0002] The traditional heat pump system has only one gas-liquid separator, and the refrigerant discharged from the four-way valve flows directly back to the compressor after passing through the gas-liquid separator. However, such a traditional heat pump system is likely to cause liquid shock of the compressor during defrosting operation, which will cause certain damage to the compressor and the system, reduce the life of the compressor and the system, and increase maintenance and use costs. Moreover, for a heat pump system with a large number of horses, a gas-liquid separator with a large volume is often required, resulting in an excessively large overall volume of the heat pump system, and the separation effect is limited, and the safety of the system operation is poor. Contents of the invention [0003] The present ...

Claims

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Application Information

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IPC IPC(8): F25B13/00F25B43/02
Inventor 张幸福
Owner HEFEI MIDEA HEATING & VENTILATING EQUIP
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