Solar energy-based air source heat pump
An air source heat pump and solar collector technology, applied in the field of heating and cooling, can solve the problems of poor defrosting effect, insufficient utilization, weak solar radiation, etc., to ensure reliability, improve effect, and ensure heating reliability Effect
Active Publication Date: 2016-03-16
TSINGHUA UNIV
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Problems solved by technology
[0008] Aiming at the defects existing in the prior art, the present invention proposes a solar air source heat pump to solve the problem that the existing solar air source heat pump adopts the traditional air source heat pump defrosting method, or uses solar radiation to defrost the air source heat pump, and cannot Stable heating at the same time, poor defrosting effect, unable to guarantee the reliability of air source heat pump defrosting, and not making full use of weak solar radiation
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[0063] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.
[0064] It should be noted that in the drawings in the embodiments of the present disclosure, the operating devices and pipelines are represented by solid lines, and the closed devices and pipelines are represented by dashed lines.
[0065] An embodiment of the present disclosure provides a solar air source heat pump, including: a solar heat collector, an air source heat pump, a third liquid / liquid heat exchanger, and a user-side device;
[0066] The ...
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The invention relates to the technical field of heating and cooling, and provides a solar energy-based air source heat pump. The solar energy-based air source heat pump comprises a solar heat collector, an air source heat pump, a third liquid / liquid heat exchanger and a user-side device. The solar heat collector is connected with the air source heat pump and the user-side device. The air source heat pump comprises a plurality of air-cooled heat exchangers and a heat pump unit. The plurality of air-cooled heat exchangers are connected with the heat pump unit via a first liquid pump. The heat pump unit is connected with the user-side device. The user-side device is connected with the plurality of air-cooled heat exchangers via the third liquid / liquid heat exchanger. By means of the plurality of air-cooled heat exchangers, the air thermal energy is absorbed by the air-cooled heat exchangers without the need of the defrosting operation. The hot water is prepared by the heat pump unit and then is fed into the to-be-defrosted air-cooled heat exchangers to realize the defrosting purpose. Therefore, the defrosting reliability is ensured, and the defrosting effect is improved. At the same time, the heat supply persistence is ensured during the defrosting process.
Description
Technical field [0001] The invention relates to the technical field of heating and refrigeration, in particular to a solar air source heat pump. Background technique [0002] With the shortage of energy and the increasing awareness of environmental protection, the development and utilization of renewable energy has attracted much attention, and solar energy is a safe and clean renewable energy that is widely used in the production of hot water. However, the use of solar energy is greatly affected by weather changes and is unstable. Traditional solar heating devices cannot use solar radiation at night, or when solar radiation is weak, due to the solar heat collection in solar water heating devices The heater leaks heat, and the temperature of the hot water produced by the solar heating device cannot meet the needs of users. [0003] The air source heat pump uses the working principle of the heat pump to produce high-temperature hot water using low-grade heat energy in the air, whic...
Claims
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IPC IPC(8): F25B47/02F25B30/06F25B41/00F24J2/42F24S90/00F25B41/40
CPCF24S90/00F25B30/06F25B47/02F25B2347/02F25B41/40Y02E10/40
Inventor 李先庭冉思源吴伟石文星王宝龙
Owner TSINGHUA UNIV