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Solar water heating system and heat pump heating and refrigerating system and method thereof

A technology of solar hot water and solar collectors, applied in the field of solar heat pumps, can solve the problem of low heat collection efficiency and achieve the effect of improving utilization

Active Publication Date: 2016-01-27
ZHEJIANG UNIV
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Problems solved by technology

This kind of system has better stability and reliability than the first one, but because the solar heat collection system is always in the working mode of high-temperature water tank, the heat collection efficiency is not high

Method used

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  • Solar water heating system and heat pump heating and refrigerating system and method thereof
  • Solar water heating system and heat pump heating and refrigerating system and method thereof
  • Solar water heating system and heat pump heating and refrigerating system and method thereof

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Embodiment Construction

[0038] The structure and operation mode of the present invention will be further described below in conjunction with the drawings. It should be noted that the following various specific preferred embodiments can be combined with each other without conflicting each other. In the drawings of the specification, Figure 4-9 The dashed line in this mode indicates the pipeline through which liquid actually flows.

[0039] The present invention provides a solar hot water system, a heat pump heating and cooling system and a method thereof, which organically combine solar heat utilization technology and air source heat pump technology to ensure heating, domestic hot water and summer cooling requirements, and improve the utilization of solar energy Rate and improve the energy efficiency ratio of the entire heating system.

[0040] A solar water heating system, such as figure 1 As shown, it includes a first flow direction adjusting device 1, a second flow direction adjusting device 2, a sola...

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Abstract

The invention discloses a solar heat pump heating and refrigerating system and a method thereof. According to a solar water heating system, the flow direction of circulating fluid at the outlet of a heat collector is changed through a flow direction adjusting device, so that hierarchical heat storage of solar energy in multiple water tanks is achieved. The solar heat pump heating and refrigerating system is based on the solar water heating system and combined with an air source heat pump water heating system. During a heating cycle, energy is obtained from air to heat the first water tank with a heat exchanger as an evaporator. The heat exchanger serves as a condenser when frosting, and energy is obtained from the second water tank to defrost. In addition, according to the solar heat pump heating and refrigerating method based on the solar heat pump heating and refrigerating system, different operation modes are adopted according to different seasons by adjusting opening and closing of all valves. According to the solar heat pump heating and refrigerating system, the water tanks are adopted for hierarchical energy storage according to the solar energy radiation intensity, so that the use ratio of the solar energy is improved, and a good heat supply or cool supply effect can also be maintained under extreme conditions.

Description

Technical field [0001] The invention belongs to the field of solar heat pumps, and specifically relates to a solar hot water system, a heat pump heating and cooling system and a method thereof. Background technique [0002] With the improvement of people's living standards in our country, building energy consumption continues to increase, of which building heating and domestic hot water energy consumption increase particularly fast. The traditional heating energy is fossil fuel, which is non-renewable and causes air pollution and global warming. In southern my country and areas with hot summers and cold winters, domestic hot water systems mostly use gas water heaters and electric water heaters, which suffer from low efficiency and waste of energy quality. Therefore, solar thermal utilization and high-efficiency air source heat pump water heaters are good energy-saving solutions. [0003] However, these two technologies have disadvantages when applied separately. Solar energy is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/04F24J2/40F25B27/00F25B41/00
CPCY02E10/44
Inventor 何国青李至远刘灯标刘天际许建丰
Owner ZHEJIANG UNIV
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