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Heat pump electricity storage cogeneration system

A combined heat and power and heat pump technology, applied in heating systems and central heating, can solve the problems of low efficiency of heat pump power storage systems, weak peak regulation capability, and restrictions on large-scale and rapid development, and achieves improved efficiency, flexible ratio, The effect of improving the thermal/electrical peak shaving capability of the system

Active Publication Date: 2020-05-29
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

However, the low efficiency and weak peak shaving ability of the heat pump power storage system limit its large-scale and rapid development to a certain extent.

Method used

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  • Heat pump electricity storage cogeneration system

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Embodiment Construction

[0032] In order to make the purpose, technical scheme and advantages of the present invention clearer, the specific implementation of the present invention will be described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not used to limit the scope of the present invention. Any changes or substitutions conceived by those skilled in the art fall within the protection scope of the present invention.

[0033] Such as figure 1 As shown, the heat pump electricity storage cogeneration system of the present invention includes: a power supply unit 1, a motor 2, a heat pump 3, a heat storage device 4, a control valve 5, a cross-season heat storage body 6, a heat collector 7, and an expander 8. The pump 9, the generator 10, the power consumption unit 11, the heat consumption unit 12, and at least the first to fourth heat exchange pipelines 13-16 are arranged in the cross-sea...

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Abstract

The invention discloses a heat pump electricity storage cogeneration system. According to the heat pump electricity storage cogeneration system, heat pump heat storage is combined with seasonal heat storage to form the heat pump electricity storage cogeneration system, and the problems of low efficiency and weak heat / electricity peak load regulation ability are solved. The heat pump electricity storage cogeneration system has the advantages that a plurality of heat storage modes complement one another, coordinate one another and back up one another, the ratio of the thermoelectric ratio is more flexible and the system efficiency is higher, 100% renewable energy utilization rate can be achieved, and the heat / electricity peak load regulation ability is greatly improved.

Description

technical field [0001] The invention relates to the technical field of heat storage and electricity storage, in particular to a heat pump electricity storage combined heat and power system. Background technique [0002] Energy storage technology is an urgent need to solve the large-scale access of renewable energy and improve the efficiency, safety and economy of conventional power systems and regional energy systems. It is known as the supporting technology and strategic emerging industry of the energy revolution. The current electric energy storage technology can be divided into three categories: physical energy storage, chemical energy storage and electromagnetic energy storage. Physical energy storage mainly includes pumped water storage, compressed air energy storage and flywheel energy storage, etc.; chemical energy storage mainly includes lead-acid batteries, lithium-ion batteries, sodium-sulfur batteries, liquid flow batteries, etc.; electromagnetic energy storage ma...

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Application Information

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IPC IPC(8): F24D11/02F24D19/10F28D20/00
CPCF24D11/02F24D19/10F28D20/00Y02E60/14Y02E70/30
Inventor 周学志徐玉杰陈海生王子逸张新敬赵钢炜刘畅
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI