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Heat pump unit

A heat pump unit and compressor technology, applied in heating and cooling combinations, refrigerators, refrigeration components, etc., can solve the problems of cooling and freezing cracked water-side heat exchangers, and achieve the effect of reducing the risk of freezing cracks

Active Publication Date: 2018-05-01
CHONGQING MIDEA GENERAL REFRIGERATING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For this reason, the present invention proposes a heat pump unit, which can solve the problem of freezing and cracking of the water-side heat exchanger due to the evaporation and migration of the refrigerant, and can greatly reduce the freezing and cracking caused by the lowering of the water temperature in the water-side heat exchanger in a low-temperature environment. risk of cracking

Method used

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  • Heat pump unit

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Embodiment Construction

[0022] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0023] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or positional relationship. Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the ...

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Abstract

The invention discloses a heat pump unit, comprising: a compressor, a reversing assembly, an outdoor heat exchanger, a water-side heat exchanger, an outer waterway, a heating device for heating an annular waterway, a controller and a backup power supply, a compression The machine has an exhaust port and a return air port. The reversing assembly includes a first valve port to a fourth valve port. The water-side heat exchanger includes a refrigerant flow path and a water flow path for mutual heat exchange. A first control valve and a throttling element are connected in series between the refrigerant flow path and the outdoor heat exchanger, and a series connection between the refrigerant flow path and the third valve port. Second control valve. A driving member with an opening and closing function is connected in series on the annular waterway. The controller is connected with the first control valve, the second control valve, the driving part and the heating device. Backup power is connected to the controller. The heat pump unit according to the embodiment of the present invention can solve the problem of freezing and cracking of the water-side heat exchanger caused by the evaporation and migration of the refrigerant, and can greatly reduce the risk of freezing and cracking caused by the drop of water temperature in the water-side heat exchanger in a low-temperature environment. risk.

Description

technical field [0001] The invention relates to the refrigeration field, in particular to a heat pump unit. Background technique [0002] If the air-cooled unit is in a low ambient temperature environment, if the power is cut off, the antifreeze solution will fail, and the refrigerant will evaporate and migrate to cool down in a short period of time, causing the water in the copper tube of the evaporator to freeze and crack the evaporation tube. At the same time, in a low temperature environment, the water temperature in the evaporator will decrease accordingly, which greatly increases the risk of the evaporator freezing and cracking. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, the present invention proposes a heat pump unit, which can solve the problem of freezing and cracking of the water-side heat exchanger due to the evaporation and migration of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B29/00F25B41/04F25B41/06F25B41/20F25B41/30
Inventor 杨崇银刘开胜张运乾李超
Owner CHONGQING MIDEA GENERAL REFRIGERATING EQUIP
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