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Air source heat pump heating system and method based on solar hot wind phase change energy storage

A technology of air source heat pump and solar hot air, which is applied in the field of green building and renewable energy utilization, can solve problems such as indoor temperature drop, low solar energy flow density, and large indoor temperature fluctuations, so as to reduce consumption and utilization, improve efficiency, The effect of improving operating efficiency

Pending Publication Date: 2020-01-03
BEIJING AEROSPACE GEOTECHN ENG INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing solar heating, due to the low energy flux density of solar energy and the influence of radiation intensity by environmental factors, the indoor temperature of solar hot air heating fluctuates greatly. When there is no solar radiation on cloudy days or at night, the indoor temperature will drop significantly, which cannot satisfy people's comfort. degree requirements

Method used

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  • Air source heat pump heating system and method based on solar hot wind phase change energy storage

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Effect test

Embodiment 1

[0057] Such as figure 1 As shown, the air source heat pump heating system based on solar hot air phase change energy storage provided in this embodiment includes: an energy storage subsystem and a heating subsystem;

[0058] The energy storage subsystem includes: solar air heat collector 1, phase change energy storage box 3, energy storage pipeline and energy storage fan 21; The heater 1 and the phase change energy storage tank 3 are connected through the energy storage pipeline; the energy storage fan 21 is arranged on the energy storage pipeline to force the air to circulate between the solar air heat collector 1 and the phase change energy storage tank 3; the phase change A plurality of phase change energy storage units 4 are arranged in the energy storage box 3, and the phase change energy storage units 4 are filled with phase change materials, and the hot air heated by the solar air heat collector 1 flows through the phase change energy storage box 3, The physical state ...

Embodiment 2

[0077] refer to figure 1 As shown, this embodiment discloses a heating method using the above-mentioned heating system, which includes the following steps:

[0078] S1. When the temperature value in the phase change energy storage box is lower than the set lower limit value of the phase change material (the set lower limit value is set for the solid freezing point of the phase change material, and its phase change is caused by its liquid state transition The latent heat released by the solid-state phase change process is mainly used for energy storage, and the solid-state sensible heat can basically not be counted), and the opening of the first regulating valve DT1 is opened to 100%, which is used to ensure that the air source heat pump is early in the daytime and early in the morning. It can operate normally when the temperature is low in the evening; open the third control valve DK3 and the fourth control valve DK4, close the first control valve DK1 and the second control va...

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Abstract

The invention provides an air source heat pump heating system and method based on solar hot wind phase change energy storage. The heating system includes an energy storage subsystem and a heating subsystem; the energy storage subsystem includes a solar air collector, a phase change energy storage box, an energy storage pipeline and an energy storage fan; and the heating subsystem includes an air source heat pump, the phase change energy storage box, an air mixer, a heating pipeline, a return air pipeline and a heating fan. By means of the air source heat pump heating system and method, a solarhot air heating technology and a phase change energy storage technology are combined, the indoor comfort is effectively improved, and meanwhile, consumption and use of traditional energy are effectively reduced. Hot air generated by the solar air collector is used for storing heat for a phase change material in the energy storage boxes, when the air source heat pump system is operated at night, solar energy stored in the phase change material during the day is used for preheating heat source air in the air source heat pump system, and the system operating efficiency is accordingly improved.

Description

technical field [0001] The invention relates to the technical field of green building and renewable energy utilization, in particular to an air source heat pump heating system and method based on solar hot air phase change energy storage. Background technique [0002] Energy and the environment are topics of common concern to all mankind. Coal always occupies the largest proportion in my country's energy consumption structure, which not only exacerbates the energy crisis, but also has a huge impact on the environment. Excessive carbon dioxide emissions have led to the greenhouse effect, and coal-fired heating has exacerbated the frequent occurrence of smog and haze, seriously affecting people's normal life order. The country is paying more and more attention to energy conservation and environmental protection, and has also introduced a series of related policies such as coal-to-electricity, coal-to-gas, etc. to improve the environment and energy conservation, but it is diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D15/02F24D15/04F24D19/10F24S60/10F24S20/40F28D20/02
CPCF24D15/02F24D15/04F24D19/1093F24S60/10F24S20/40F28D20/02F24D2200/12F24D2200/14Y02E10/40Y02E70/30Y02B10/20Y02B10/70Y02E60/14
Inventor 王敏
Owner BEIJING AEROSPACE GEOTECHN ENG INST
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