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Closed air Brayton-organic Rankine combined cycle system

A cycle system, Rankine cycle technology, applied in mechanical equipment, steam engine installations, machines/engines, etc., can solve the problems of prolonging the life of the reactor, large cold end loss, large nuclear fuel consumption, etc.

Inactive Publication Date: 2021-06-08
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simply using the Brayton cycle power system, the cycle efficiency is low, the loss of the cold end is large, and the nuclear fuel consumption of the same power level is greater, which is not conducive to prolonging the life of the reactor

Method used

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  • Closed air Brayton-organic Rankine combined cycle system

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] refer to figure 1 To illustrate this embodiment of the present invention, a closed air Brayton-organic Rankine combined cycle system described in this embodiment includes two subsystems: a closed air Brayton cycle subsystem and an organic Rankine cycle subsystem. The closed air Brayton cycle subsystem includes: low-pressure compressor 1, intercooler 2, high-pressure compressor 3, air regenerator 4, high-temperature heat source 5, high-pressure turbine 6, reheat heat source 7, low-pressure turbine 8, Generator 9, ORC heat exchanger 10, diverter valve 16 and second cooler 17; organic Rankine cycle subsystem includes: ORC heat exchanger 10, ORC turbine 11, ORC regenerator 12, first cooler 13 , pump 14 and generator 15.

[0016] In the closed air Brayton cycle subsystem, there are mainly five types of working processes: cooling p...

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Abstract

The invention discloses a closed air Brayton-organic Rankine combined cycle system which is mainly applied to the field of movable small nuclear power supply power cycle power generation. The system comprises a low-pressure compressor, an intercooler, a high-pressure compressor, an air regenerator, a high-temperature heat source, a high-pressure turbine, a reheating heat source, a low-pressure turbine, a generator, a flow dividing valve, an ORC heat exchanger, an ORC turbine, an ORC regenerator, a cooler and a pump. According to the system, the opening degree of the flow dividing valve is adjusted, the output power of the two power generation subsystems is matched, the system can flexibly distribute power distribution between the combined cycle subsystems under different load requirements, and the safety reliability and the variable load flexibility of the system are improved.

Description

technical field [0001] The invention relates to a Brayton combined cycle system, in particular to a closed air Brayton cycle and organic Rankine combined cycle system. Background technique [0002] As a small nuclear power source, the mobile reactor has the characteristics of modular design, flexible deployment and long-term independent operation off the grid. It is suitable for power supply in remote areas, polar scientific research stations and isolated islands, and can also be used as a backup in emergency situations The power supply provides power guarantee for the local grid. The existing closed supercritical carbon dioxide and helium Brayton cycle system has higher efficiency than air circulation, but in periods or areas of extreme supply shortage, the power system may cause a shortage of working fluid due to leakage of working fluid, affecting The unit operates stably for a long time. The open air cycle has the advantages of simple structure and mature turbine techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K13/00F01K13/02F01K17/02F01D15/10
CPCF01D15/10F01K13/00F01K13/02F01K17/02
Inventor 陈伟雄钱奕然唐鑫严俊杰王进仕刘明
Owner XI AN JIAOTONG UNIV