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Coal-fired magnetofluid supercritical CO2 combined cycle power generation system and method

A combined cycle power generation and magnetic fluid power generation technology, applied in combustion methods, machines/engines, combined combustion mitigation, etc., to achieve the effects of simple system structure, improved energy utilization efficiency, and reduced initial investment and power generation costs

Pending Publication Date: 2021-10-01
XIAN THERMAL POWER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The survey found that there is still a lack of research on the coupling of coal-fired magnetic fluid power generation and supercritical CO2 power cycle power generation. These problems need to be resolved

Method used

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  • Coal-fired magnetofluid supercritical CO2 combined cycle power generation system and method

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, a coal-fired magnetic fluid supercritical CO2 combined cycle power generation system includes a coal-fired magnetic fluid generator, an air preheating system and a supercritical CO2 cycle power generation system, wherein,

[0022] The coal-fired magnetic fluid generator includes a combustion chamber 1, a nozzle 2, a magnetic fluid power generation channel 3 and a diffuser 4 that are connected in sequence, and also includes magnets 5 arranged on both sides of the magnetic fluid power generation channel 3 and connected with the magnetic fluid power generation channel. An inverter converter 6 connected to the electrodes of the channel 3, seeds are mixed in the combustion chamber 1; a waste heat boiler is installed at the end of the diffuser 4;

[0023] The air preheating system includes a low-temperature air preheater 7, an air...

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Abstract

The invention discloses a coal-fired magnetofluid supercritical CO2 combined cycle power generation system and method. The system comprises a coal-fired magnetofluid generator, an air preheating system, a waste heat boiler and a supercritical CO2 cycle power generation system. The coal-fired magnetofluid generator does not need rotating equipment, is simple in structure, and achieves direct conversion from heat energy to electric energy. The supercritical CO2 power cycle is coupled to the exhaust side of the coal-fired magnetofluid generator, the power generation efficiency and the operation flexibility of the system can be greatly improved, the compactness degree of the system is increased, and the initial investment and the power generation cost of a power station are reduced. Meanwhile, the system is simple in structure and less in equipment, and the control operation difficulty of the system can be reduced. Cold oxygen-enriched air is preheated through the waste heat of a supercritical CO2 power cycle cold end, the cold source loss of the system can be reduced, and the energy utilization efficiency is improved. Energy cascade quality-divided utilization is achieved.

Description

technical field [0001] The invention relates to the technical field of coal-fired power generation, in particular to a coal-fired magnetic fluid supercritical CO2 combined cycle power generation system and method. Background technique [0002] Coal-fired magnetic fluid power generation technology is a technology that directly converts heat energy into electrical energy through the high-temperature and high-speed ionized flue gas (plasma) generated by burning coal powder and oxygen-enriched air in a burner. This magnetic fluid generator has no Rotating parts, simple structure, quick start, is a promising way of generating electricity. Generally, the inlet temperature of magnetic fluid power generation is 3000K, the exhaust temperature is 2000K, and its thermal efficiency can be as high as 20%. Due to its high exhaust temperature, the exhaust gas is generally used as a heat source to couple the steam power cycle to further utilize the exhaust heat to improve the overall power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K25/10F01D15/10F23L15/00F25B41/40F25B40/06
CPCF01K25/103F01D15/10F23L15/00F25B41/40F25B40/06Y02E20/16Y02E20/34
Inventor 张旭伟李红智顾正萌杨玉乔永强张天宇白文刚
Owner XIAN THERMAL POWER RES INST CO LTD
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