Supercritical carbon dioxide and steam coupling cycle power generation system and method for photo-thermal afterburning

A technology of cycle power generation and carbon dioxide, applied in steam engine devices, machines/engines, mechanical equipment, etc., to achieve stable power generation, cost saving, and high cycle efficiency

Pending Publication Date: 2022-05-13
SHANGHAI POWER EQUIP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When working, the water source heat pump is used to extract low-grade heat energy from seawater, and it consumes less electric energy to upgrade it to high-grade heat energy as the heat source of the supercritical carbon dioxide circulation system. At the same time, the solar collector is used to collect heat energy as the supercritical carbon dioxide circulation system. The source of heat, recycling the exhaust gas from the gas turbine and the waste heat of heat exchange, to realize the cascade utilization of energy. Although the system is coupled in various ways, it is only used to spread the environment

Method used

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  • Supercritical carbon dioxide and steam coupling cycle power generation system and method for photo-thermal afterburning

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Embodiment 1

[0070] This embodiment provides a supercritical carbon dioxide and steam coupled cycle power generation system and method for photothermal supplementary combustion. The coupled cycle power generation system includes s-CO 2 Cycle power generation system, steam cycle power generation system and supplementary combustion system;

[0071] The s-CO 2 The main circuit of the cycle power generation system includes a main compressor 1, a low temperature regenerator 2, a high temperature regenerator 3, a preheater 4 (molten salt heater), a main heat exchanger 5 and a first turbine 6 connected in sequence, The first turbine 6 is connected to the first cooler 7 through the high temperature regenerator 3 and the low temperature regenerator 2 in sequence, and the first cooler 7 is connected to the main compressor 1 again, form a loop;

[0072] The s-CO 2 The main circuit of the cycle power generation system also includes a first branch pipeline and a second branch pipeline;

[0073] The...

Embodiment 2

[0082] This embodiment provides a supercritical carbon dioxide and steam coupled cycle power generation system and method for photothermal supplementary combustion. The coupled cycle power generation system includes s-CO 2 Cycle power generation system, steam cycle power generation system and supplementary combustion system;

[0083] The s-CO 2 The main circuit of the cycle power generation system includes a main compressor 1, a low temperature regenerator 2, a high temperature regenerator 3, a preheater 4 (molten salt heater), a main heat exchanger 5 and a first turbine 6 connected in sequence, The first turbine 6 is connected to the first cooler 7 through the high temperature regenerator 3 and the low temperature regenerator 2 in sequence, and the first cooler 7 is connected to the main compressor 1 again, form a loop;

[0084] The s-CO 2 The main circuit of the cycle power generation system also includes a first branch pipeline and a second branch pipeline;

[0085] The...

Embodiment 3

[0097] This embodiment provides a supercritical carbon dioxide and steam coupled cycle power generation system and method for photothermal supplementary combustion. The coupled cycle power generation system includes s-CO 2 Cycle power generation system, steam cycle power generation system and supplementary combustion system;

[0098] The s-CO 2 The main circuit of the cycle power generation system includes a main compressor 1, a low temperature regenerator 2, a high temperature regenerator 3, a preheater 4 (molten salt heater), a main heat exchanger 5 and a first turbine 6 connected in sequence, The first turbine 6 is connected to the first cooler 7 through the high temperature regenerator 3 and the low temperature regenerator 2 in sequence, and the first cooler 7 is connected to the main compressor 1 again, form a loop;

[0099] The s-CO 2 The main circuit of the cycle power generation system also includes a first branch pipeline and a second branch pipeline;

[0100] The...

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Abstract

The invention provides a supercritical carbon dioxide and steam coupling cycle power generation system and method for photo-thermal afterburning. The coupling cycle power generation system comprises an s-CO2 cycle power generation system, a steam cycle power generation system and an afterburning system. The s-CO2 cycle power generation system, the steam cycle power generation system and the afterburning system respectively and independently comprise heat exchange equipment; every two of the s-CO2 cycle power generation system, the steam cycle power generation system and the afterburning system are independently connected through heat exchange equipment; according to the coupling cycle power generation system, the photo-thermal system and the supercritical carbon dioxide cycle power generation system are coupled, the afterburning system and the steam cycle power generation system are additionally arranged, on one hand, waste heat of the carbon dioxide cycle system can be effectively utilized, and the carbon dioxide cycle efficiency is improved; on the other hand, the effect of stabilizing the generating capacity can be achieved, and industrialization and commercialization development of the supercritical carbon dioxide generator set is facilitated.

Description

technical field [0001] The invention belongs to the technical field of energy storage and power generation, and specifically relates to a supercritical carbon dioxide and steam coupled cycle power generation system and method for photothermal supplementary combustion. Background technique [0002] In recent years, electricity and production restrictions have affected people's livelihood and are expected to become normalized in the future. In order to balance and stabilize the relationship between power load and supply in various regions, make full use of resources, and improve the power generation efficiency of power generation systems has become a research hotspot today. [0003] Among them, supercritical carbon dioxide power generation system is one of the hot research directions of new energy power generation. It has the characteristics of environmental friendliness and good economy. It is a hot research direction of clean and efficient power generation technology and ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K13/00F01K25/10F01K27/00
CPCF01K13/00F01K13/006F01K25/103F01K27/00
Inventor 李振亚范雪飞朱幼君刘传亮张成义边文杰李健蒋励徐望人
Owner SHANGHAI POWER EQUIP RES INST
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