All-regenerative Brayton cycle and absorption refrigeration integrated power and cooling combined supply system

Abstract

The invention discloses a full-heat-regeneration Brayton cycle and absorption type refrigeration integrated electricity and cooling combined supply system. The system comprises a supercritical carbon dioxide Brayton cycle power generation system, a pre-cooling-boiler coupling heat regeneration module and an absorption type electricity and cooling combined supply system. The supercritical carbon dioxide Brayton cycle system is combined with the absorption type electricity-cooling combined supply system, low-pressure high-temperature side outlet carbon dioxide waste heat of a low-temperature heat regenerator outlet is fully utilized, heat is provided for the absorption type electricity-cooling combined supply system in combination with the pre-cooling-boiler coupling heat regeneration system, low-temperature waste heat of the low-temperature heat regenerator outlet can be fully utilized, and the heat utilization rate of the low-temperature heat regenerator outlet is improved. And meanwhile, a large amount of cooling water and a precooler required by the Brayton cycle are omitted, the investment cost of the high-temperature heat regenerator and the low-temperature heat regenerator is reduced, and the power generation efficiency of the Brayton system is improved.

Description

technical field [0001] The invention relates to the field of combined power generation, in particular to an electricity-cooling cogeneration system integrated with a full-regeneration Brayton cycle and absorption refrigeration. Background technique [0002] With the development of today's society and the advancement of science and technology, the energy crisis and the resulting environmental pollution have made the improvement and reduction of primary energy consumption and the development of energy-saving and efficient renewable energy utilization technologies have attracted extensive attention from researchers. [0003] In many thermodynamic cycle systems such as steam power cycle, gas power cycle, Brayton cycle, etc., the supercritical Brayton cycle is an advanced power cycle system that uses supercritical fluid as the working medium and does not change the phase state in the entire process. With the advantages of high energy density, compact size, and wide adaptability t...

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Problems solved by technology

[0005] In order to solve the defects of a large amount of low-grade waste heat on the hot side of the pre-cooler in the prior art, and direct pre-cooling by cooling water will cause heat loss and a large amount of cooling water consumption, the present invention proposes a full-regeneration Brayton cycle and Combined Electricity and Cooling System Integrated with Absorption Refrigeration

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