Enhanced vapor injection variable-frequency air source heat pump hot water system and operation control method

An air source heat pump and hot water system technology, applied in heat pumps, refrigerators, refrigeration components, etc., can solve the problems of not being able to provide heat for the hot end, reduce discomfort, improve operating conditions, and increase total output heat effect

Pending Publication Date: 2021-12-14
SHUNDE POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main problem of this defrosting method is that not only can’t provide heat for the hot end during the defrosting process, but it needs to absorb heat from it.

Method used

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  • Enhanced vapor injection variable-frequency air source heat pump hot water system and operation control method

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Embodiment Construction

[0020] 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0021] Such as figure 1 As shown, it is a variable frequency air source heat pump hot water system with air injection and enthalpy increase, which includes a compressor 1, a heat storage heat exchanger 2, a bypass electronic expansion valve 3, a refrigerant-water heat exchanger 4, and a three-way ratio Regulating valve 5, circulating water return temperature sensor 6, circulating water outlet temperature sensor 7, jet electronic expansion valve 8, economizer 9, main electronic expansion valve 10, outdoor ambient temperature sensor 11, outdoor unit fan 12, outdoor unit heat exchange Device 13, outdoor unit heat exchanger tube temperature sensor 14, three-way valve 15, ga...

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Abstract

The invention relates to an enhanced vapor injection variable-frequency air source heat pump hot water system and an operation control method. The enhanced vapor injection variable-frequency air source heat pump hot water system is characterized by comprising a compressor, a heat storage heat exchanger, a bypass electronic expansion valve, a refrigerant-water heat exchanger, a three-way proportional regulating valve, a circulating water return temperature sensor, a circulating water outlet temperature sensor, an air injection electronic expansion valve, an economizer, a main electronic expansion valve, an outdoor environment temperature sensor, an outdoor unit fan, an outdoor unit heat exchanger, an outdoor unit heat exchanger tube temperature sensor, a three-way valve, and a gas-liquid separator. The enhanced vapor injection heat pump hot water system is still in forward heating operation during defrosting operation and can continuously provide heat for a heat using end, and heat supply is stable.

Description

technical field [0001] The invention relates to an air-source heat pump hot water system with air injection to increase enthalpy and frequency conversion and an operation control method. Background technique [0002] The air injection enthalpy heat pump system can better solve the problem of sharp drop in heating capacity and energy efficiency of the heat pump system at low temperature, but as the outdoor ambient temperature decreases, the frosting on the surface of the heat exchanger of the outdoor unit of the heat pump system will become more serious, so the defrosting of the heat pump system is also necessary. more often. [0003] At present, the most commonly used defrosting method is to run the heat pump system in reverse, that is, to perform cooling operation, which needs to obtain heat from the original hot end. The main problem of this defrosting method is that not only can’t provide heat for the hot end in the defrosting process, but need to absorb heat from it. F...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H4/02F24H9/00F24H9/20F25B30/02F25B47/02F25B41/20F25B41/34F25B49/02
CPCF24H4/02F24H9/0005F24H9/2007F25B30/02F25B47/025F25B41/20F25B41/34F25B49/02F25B2600/2513F25B2600/25Y02B30/12Y02B30/70
Inventor 徐言生张正国徐涛吴治将孙婉纯李锡宇李东洺
Owner SHUNDE POLYTECHNIC
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