Air source heat pump hot water system and control method

An air source heat pump and hot water system technology, which is applied in the control of fluid heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of reduced heating capacity, high exhaust temperature, and reduced efficiency

Pending Publication Date: 2022-03-29
WUXI TONGFANG ARTIFICIAL ENVIRONMENT
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Problems solved by technology

[0004] In view of the above problems, the present invention provides an air source heat pump hot water system, which can adapt to a wide range of operation of air source heat pump water heater units, and can solve the problems of reduced heating capacity, reduced efficiency, and high exhaust temperature.

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  • Air source heat pump hot water system and control method
  • Air source heat pump hot water system and control method
  • Air source heat pump hot water system and control method

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Embodiment Construction

[0016] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1~3 Including compressor 1, four-way reversing valve 2, water side heat exchanger 3, balancer 4, economizer 5, filter 6, first electronic expansion valve 7, second electronic expansion valve 8, one-way valve 9. Second solenoid valve 10, second capillary tube 11, air side heat exchanger 12, fan 13, etc.

[0018] like figure 1 As shown, the present invention is an air source heat pump hot water system, including a compressor 1, the first interface of the compressor 1 is connected to the D port of the four-way reversing valve 2 through a pipeline, and the E port of the four-way reversing valve 2 The port is connected to the first port of the water-side heat exchanger 3 through a pipe, the second port of the water-side heat exchanger 3 is connected to the A port of the economizer 5 through a pipe, and the D port of the economize...

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Abstract

The invention belongs to the technical field of heat pump hot water systems, and relates to an air source heat pump hot water system and a control method.The air source heat pump hot water system comprises a compressor, a first connector of the compressor is connected with a D port of a four-way reversing valve through a pipeline, and an E port of the four-way reversing valve is connected with a first connector of a water side heat exchanger through a pipeline; a second port of the water side heat exchanger is connected with a port A of the economizer through a pipeline, a port D of the economizer is connected with a second port of the compressor through a pipeline, a port C of the economizer is connected with a first port of the first electronic expansion valve through a pipeline, and a port B of the economizer is connected with a first port of the filter through a pipeline. A second connector of the first electronic expansion valve is connected with a second connector of the filter in parallel. The system can adapt to wide-range operation of the air source heat pump hot water unit, and can solve the problems of heating capacity reduction, efficiency reduction, high exhaust temperature and the like.

Description

technical field [0001] The invention belongs to the technical field of heat pump hot water systems, and relates to an air source heat pump hot water system and a control method. Background technique [0002] The elimination of small coal-fired boilers has been intensified, and energy-saving and environmentally friendly air source heat pumps have been widely used, becoming the main force for coal-fired substitution. [0003] However, when the air source heat pump hot water unit is in heating operation in winter, especially in the ultra-low temperature environment, the evaporation temperature of the heat pump system decreases, resulting in a decrease in the heating capacity and efficiency of the system; as the outlet water temperature increases, the condensation pressure increases. The increasing compression ratio and rising exhaust temperature make the unit unable to operate in an ultra-low temperature environment. The air source heat pump hot water unit has a very wide oper...

Claims

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Application Information

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IPC IPC(8): F24H4/02F24H9/20F24H15/375
CPCF24H4/02F24H9/2007
Inventor 王洋王敬民韩林俊张慧
Owner WUXI TONGFANG ARTIFICIAL ENVIRONMENT
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