Flexible large-scale high-parameter heat supply system of thermal power plant

A technology for thermal power plants and heating systems, applied in heating systems, steam centralized heating systems, household heating, etc., to achieve flexible load changes, large-scale heating, and safe operation
CN112502800AActive Publication Date: 2021-03-16CENT SOUTHERN CHINA ELECTRIC POWER DESIGN INST CHINA POWER ENG CONSULTING GROUP CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CENT SOUTHERN CHINA ELECTRIC POWER DESIGN INST CHINA POWER ENG CONSULTING GROUP CORP
Publication Date
2021-03-16

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Abstract

The invention relates to a flexible large-scale high-parameter heat supply system of a thermal power plant. The heat supply stem comprises a thermal power generation system and a high-low pressure steam combined heat exchange system. The thermal power generation system provides a heat source, and heat supply water is changed into heat supply steam through the high-low pressure steam combined heatexchange system, so that external heat supply of the thermal power plant is realized; according to the large-scale high-parameter heat supply system of the thermal power plant, a boiler and a steam turbine system are effectively decoupled, combined heat and power rigid coupling of a thermal power generating unit is broken, and the large-scale heat supply capacity under the low-load power generation working condition is guaranteed; and the high-low pressure steam combined heat exchange system can supply heat to feed water and heat the feed water into high-temperature and high-pressure heat supply steam, and the high-parameter steam supply capacity of the thermal power plant is improved.
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Description

technical field

[0001] The invention relates to the technical field of heat supply, in particular to a flexible large-scale high-parameter heat supply system of a thermal power plant. Background technique

[0002] With the in-depth advancement of the power market reform process, the adjustment of the energy structure dominated by renewable energy is constantly forcing the transformation and upgrading of the existing coal power industry. With the continuous development and maturity of the power auxiliary service market and the establishment of the power spot market, thermal power plants will usher in development opportunities for the flexible transformation technology to adapt to the operation of the power market.

[0003] For heating units, since the heating load in winter is generally large, it is necessary to maintain a certain boiler output, which is less involved in the low-load operation of the boiler. It is the problem of thermoelectric decoupling. How to reduce stea...

Claims

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