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Simple-partial cooling cycle compact type supercritical carbon dioxide cycle energy supply system for small sodium reactors

A technology of carbon dioxide and cooling cycle, which is applied in the conversion of reactor thermal energy into mechanical energy, nuclear power generation, steam engine installations, etc. It can solve the problems of large equipment occupation space, low thermal cycle efficiency, and potential safety hazards in sodium-hydraulic heat transfer, etc. Achieve the effect of reducing the number of generators and reducing the size

Pending Publication Date: 2019-03-29
HARBIN ELECTRIC CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to provide a simple-partial cooling cycle compact supercritical carbon dioxide cycle energy supply system for small-scale sodium piles, to solve the problem of low thermal cycle efficiency, large equipment footprint and sodium-hydraulic mass transfer in traditional combined heat and power systems. Heat poses a safety hazard

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  • Simple-partial cooling cycle compact type supercritical carbon dioxide cycle energy supply system for small sodium reactors

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specific Embodiment approach 1

[0021] Specific implementation mode 1, such as figure 1 As shown, the simple-partial cooling cycle compact supercritical carbon dioxide cycle energy supply system of the small-scale sodium stack of the present embodiment includes a heat source, a first loop, a second loop, a sodium-sodium heat exchanger 11, and a sodium-carbon dioxide heat exchanger 12. Main cooler 15 and heating equipment 51;

[0022] The first loop absorbs the heat from the heat source through the sodium-sodium heat exchanger 11, and then exchanges the heat to the second loop through the sodium-carbon dioxide heat exchanger 12. The second loop uses the heat to generate power, and the remaining heat after power generation passes through the main cooler. 15 is exchanged to the heating equipment 51 to provide heat energy for users;

[0023] The second circuit is provided with turbine 21, generator 31, main compressor 22, high-temperature sub-compressor 23 and low-temperature sub-compressor 24, turbine 21 drive...

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Abstract

The invention discloses a simple-partial cooling cycle compact type supercritical carbon dioxide cycle energy supply system for small sodium reactors, and belongs to the technical filed of distributedenergy. The system aims at solving the problems of low thermal cycle efficiency and large equipment occupying space of a conventional cogeneration system and potential safety hazard in sodium-water working medium heat transfer. A second circuit realizes switching between a simple cycle form and a partial cooling cycle form through an equipment bypass, thereby generating electricity by using heator supplying heat while generating electricity. The simple-partial cooling cycle compact type supercritical carbon dioxide cycle energy supply system for small sodium reactors of the invention uses anovel circulating working medium to replace a water-steam working medium currently used in a test reactor to achieve or exceed original system efficiency and realize a switchable nuclear pile reactorcogeneration system, and rationally utilizes the characteristics of a sodium reactor and working medium operation parameters to significantly improve the safety of a nuclear pile system, realize compact arrangement of the equipment and realize lightweight equipment.

Description

technical field [0001] The invention relates to a cogeneration system of heat and power, in particular to a simple-partial cooling cycle compact supercritical carbon dioxide cycle energy supply system of a small sodium pile, belonging to the technical field of distributed energy. Background technique [0002] The sodium-cooled fast reactor in the new generation of nuclear power is currently a relatively comprehensive development and a key development reactor type that has been verified to be reliable through experiments. At present, the conventional island of sodium-cooled fast reactor mainly adopts steam-water working medium, but the thermal cycle efficiency is low due to the low steam temperature (about 480°C). In addition, the sodium-water reaction will produce sodium hydroxide, a highly corrosive substance, and hydrogen, an explosive gas, which will affect the safety of nuclear reactors. Conventional island steam turbines using steam-water working medium have a large vo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K27/00F01K25/10F01K17/02F01K7/32F01D15/08F01D15/10G21D1/02G21D5/08
CPCG21D1/02G21D5/08F01D15/08F01D15/10F01K7/32F01K17/02F01K25/103F01K27/00Y02E20/14Y02E30/00
Inventor 董爱华谢敏何一川张秋鸿张春伟石玉文
Owner HARBIN ELECTRIC CO LTD
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