Heat pump energy storage system for trans-critical CO2 power generation drive

An energy storage system, transcritical technology, applied in the direction of machines/engines, solar heating systems, heat pumps, etc., can solve the problems of single source of electric energy, unfavorable environmental protection, etc., and achieve the effect of increasing penetration rate, saving electric energy and improving COP

Active Publication Date: 2020-08-21
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Application Information

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Problems solved by technology

However, the power consumption of its heat pump still comes from the grid, the power source is too single and the use of traditional coal-fired power is not conducive to environmental protection

Method used

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  • Heat pump energy storage system for trans-critical CO2 power generation drive

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Embodiment Construction

[0013] In order to make the technical means and effects realized by the present invention easy to understand, the present invention will be described in detail below in conjunction with the embodiments and accompanying drawings.

[0014] This example provides a transcritical CO 2 Power generation-driven heat pump energy storage system, including solar collector components, transcritical CO 2 Power generation drive components, heat pump energy storage components.

[0015] The solar energy collection assembly includes a solar heat collector 11 for collecting solar energy, an oil storage tank 12 and an oil pump 13 which are connected in circulation with the solar heat collector 11 through pipelines.

[0016] The oil storage tank 12 is also connected with an oil injection manual primary door 121 for injecting heat transfer oil and an oil injection manual secondary door 122 connected with the oil injection manual primary door 121,

[0017] The oil storage tank 12 is also connecte...

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Abstract

The invention provides a heat pump energy storage system for trans-critical CO2 power generation drive. The heat pump energy storage system comprises a solar collecting assembly, a trans-critical CO2power generation drive assembly, and a heat pump energy storage assembly, wherein the solar collecting assembly comprises a solar collector for collecting solar energy, an oil storage tank and an oilpump, and the oil storage tank and the oil pump are in loop connection with the solar collector through pipelines; the trans-critical CO2 power generation drive assembly comprises a first evaporator with a pipeline passing through, a turbo expander connected with the first evaporator, a heat regenerator connected with the turbo expander, a condenser connected with the heat regenerator, a working medium pump connected with the condenser, and a second evaporator connected with the working medium pump; and the heat pump energy storage assembly comprises a compressor connected with the turbo expander, a gas cooler connected with the compressor, a heat storage tank connected with the gas cooler, a third evaporator connected with the compressor, a cold storage tank connected with the third evaporator, an ejector connected with the gas cooler and the third evaporator, and a gas-liquid separator connected with the ejector.

Description

technical field [0001] The invention belongs to the technical field of new energy power generation and energy storage, and specifically relates to a transcritical CO 2 Heat pump energy storage system driven by power generation. Background technique [0002] State-of-the-art dual-mode transcritical CO 2 The heat pump energy storage system can improve the performance efficiency of the heat pump, and can greatly increase the penetration rate of renewable energy in the comprehensive energy system. However, the power consumption of its heat pump still comes from the grid, the source of power is too single and the use of traditional coal-fired power is not conducive to environmental protection. Using low-grade energy to generate electricity to drive the compressor in the heat pump energy storage system to do work is beneficial to energy saving and environmental protection. Contents of the invention [0003] The present invention is carried out in order to solve the above prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K7/32F01K13/00F01K25/10F01D15/08F01D15/10F24S20/00F25B27/00F25B30/02
CPCF01K7/32F01K25/103F01K13/00F01D15/08F01D15/10F24S20/00F25B30/02F25B27/00Y02E10/40
Inventor 刘方刘丹余妍张永煜
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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