Multi-energy hybrid generating system and method based on supercritical carbon dioxide cycle

A carbon dioxide and hybrid power generation technology, applied in geothermal power generation, solar thermal power generation, solar heating systems, etc., can solve the problems of insufficient peak shaving capacity, small capacity, and insufficient stability, and improve comprehensive utilization efficiency and equipment investment. Low cost and high efficiency

Pending Publication Date: 2018-01-26
SHANGHAI POWER EQUIP RES INST
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Problems solved by technology

However, only these two energy sources cannot fully meet the power supply requirements: on the one hand, as the base load energy, its c

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  • Multi-energy hybrid generating system and method based on supercritical carbon dioxide cycle

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[0032] The present invention will be further explained below in conjunction with specific embodiments.

[0033] figure 1 This embodiment provides a schematic structural diagram of the multi-energy hybrid power generation system based on the supercritical carbon dioxide cycle. The multi-energy hybrid power generation system based on the supercritical carbon dioxide cycle is composed of the following components:

[0034] Compressor 1, used to compress the carbon dioxide working fluid and increase the pressure;

[0035] The low-temperature regenerator 2 has a high-pressure side inlet, a high-pressure side outlet, a low-pressure side inlet, and a low-pressure side outlet. The high-pressure carbon dioxide working fluid from the outlet of the compressor 1 enters the low-temperature regenerator 2 through the high-pressure side inlet, and then is output from the high-pressure side outlet To the high-temperature regenerator 4, at the same time, the high-pressure carbon dioxide working fluid ...

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Abstract

The invention provides a multi-energy hybrid generating system based on supercritical carbon dioxide cycle. The multi-energy hybrid generating system based on supercritical carbon dioxide cycle comprises a supercritical carbon dioxide cycle loop formed by a compressor, a low-temperature regenerator, a geothermal energy heater, a high-temperature regenerator, a solar heater, a boiler, a turbine, anelectric generator, a precooler and a cooler; a geothermy injection-production loop formed by an injection pump, an injection well, a production well and a geothermal energy heat exchanger; and a solar heat conversion loop formed by a cycle pump, a solar concentrating heat collecting system, a heat storage device heat exchanger, a heat storage device, a three-way switching valve, a solar heater,a lithium bromide absorption refrigerator, a cooler and a cooling tower. The invention further provides a multi-energy hybrid generating method based on supercritical carbon dioxide cycle. According to the system, multiple energy is combined, a high-temperature heat source and a low-temperature heat source are complemented, and multi-energy hybrid generation is realized through supercritical carbon dioxide cycle; and not only can the comprehensive energy utilization rate be improved, but also the system is simple, compact in structure, flexible to operate and low in cost.

Description

technical field [0001] The invention relates to a multi-energy hybrid power generation system and method based on a supercritical carbon dioxide cycle, and belongs to the technical field of new energy sources. Background technique [0002] The world today is undergoing an energy revolution. The traditional energy pattern dominated by conventional fossil fuels is changing to a diversified energy supply model, and renewable energy is gradually becoming the main energy source. [0003] The reserves of geothermal energy in the world and in our country are very huge, of which hot dry rock (>150°C) accounts for more than 99%, and the reserve of hot dry rock in my country is equivalent to 2% of my country's total energy consumption in 2010. 4400 times. Recently, in the Gonghe Basin of Qinghai Province, a large-scale usable hot dry rock above 200 °C was discovered, and the recoverable amount is equivalent to three times the total energy consumption in my country in 2016. Hot dry...

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Application Information

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IPC IPC(8): F01K7/32F01K11/02F24S23/00F24T10/10
CPCY02E10/44Y02E10/10
Inventor 郑开云黄志强
Owner SHANGHAI POWER EQUIP RES INST
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