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Cold accumulation type supercritical Brayton cycle power generation system and method

A Brayton cycle and power generation system technology, applied in solar thermal power generation, machines/engines, and mechanisms for generating mechanical power, can solve problems such as large temperature differences and low nighttime temperatures, achieve low power consumption, solve heat dissipation problems, and ensure Effect of Cold Junction Temperature

Pending Publication Date: 2018-10-16
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology

Although the daytime temperature in these areas can be very high in summer, the temperature difference is generally large. Even in summer, the nighttime temperature is very low.

Method used

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  • Cold accumulation type supercritical Brayton cycle power generation system and method

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Embodiment Construction

[0020] The present invention is described in further detail below in conjunction with accompanying drawing:

[0021] Such as figure 1 As shown, a supercritical Brayton cycle power generation system with cold storage in the present invention includes a heat source 1 , a supercritical Brayton cycle system 4 , a cold storage system 2 and a cooling system 3 connected in sequence. The supercritical Brayton cycle system 4 includes a turbine 4-1, a high temperature regenerator 4-2, a low temperature regenerator 4-3, a precooler 4-4, a main compressor 4-5 and a recompressor 4 -6; the inlet of the turbine 4-1 is connected with the outlet of the heat source 1 working medium side, the outlet of the turbine 4-1 is connected with the inlet of the heat release side of the high temperature regenerator 4-2, and the high temperature regenerator 4-2 The heat release side outlet of the low temperature regenerator 4-3 is connected with the heat release side inlet of the low temperature regenerat...

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Abstract

The invention discloses a cold accumulation type supercritical Brayton cycle power generation system and method. The system comprises a heat source, a supercritical Brayton cycle system, a cold accumulation system and a cooling system which sequentially communicate. According to the cold accumulation system and the adjusting method, the problem of heat dissipating of a thermal system under high temperature in the daytime in summer can be effectively solved; the temperature of the cold end of the system can be ensured; and the heat efficiency of the system can be ensured.

Description

technical field [0001] The invention relates to a power generation system, in particular to a supercritical Brayton cycle power generation system and method with cold storage. Background technique [0002] Under the background of energy shortage and environmental crisis, people pay more and more attention to improving energy efficiency. Among the many thermodynamic cycles, the supercritical Brayton cycle is the most advantageous cycle form. New supercritical working fluids (carbon dioxide, helium and nitrous oxide, etc.) have inherent advantages such as high energy density, high heat transfer efficiency, and simple system, which can greatly improve thermal power conversion efficiency, reduce equipment volume, and have high economic efficiency. sex. [0003] But there is also an obvious technical difficulty in this type of cycle, that is, the cooling problem. The critical temperature of a supercritical cycle, especially a supercritical cycle like carbon dioxide, is close t...

Claims

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Application Information

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IPC IPC(8): F01K25/08F01K13/00F01D15/10F03G6/04
CPCF01D15/10F01K13/00F01K25/08F03G6/04Y02E10/46
Inventor 高炜李红智张磊张纯聂鹏
Owner XIAN THERMAL POWER RES INST CO LTD
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