Large-temperature-difference steam exhaust waste heat recovery system of coal-fired power plant heat supply head station

A technology of coal-fired power plants and large temperature difference, which is applied in heating systems, hot water central heating systems, household heating, etc., can solve the problems of insufficient recovery and utilization of waste heat from low-pressure exhaust steam of steam turbines, so as to reduce energy loss and improve economy. benefits, the effect of reducing heat emissions

Inactive Publication Date: 2018-02-16
ZHONGQINGYUAN ENVIRONMENTAL PROTECTION ENERGY SAVING
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Problems solved by technology

[0004] The invention provides a large temperature difference recovery exhaust steam waste heat system for the first heat supply station of a coal-fired power plant, which solves the problem that the low-pressure exhaust steam waste heat of steam turbines is not fully recovered and utilized

Method used

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  • Large-temperature-difference steam exhaust waste heat recovery system of coal-fired power plant heat supply head station

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Embodiment Construction

[0018] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0019] refer to figure 1 , a coal-fired power plant heating first station large temperature difference recovery exhaust steam waste heat system, including boiler 1, steam turbine 2, condenser 3, waste heat recovery heat exchanger 4, steam absorption heat pump 5, steam injection heat pump 6, waste heat Peak-shaving equipment 7, absorption heat exchange unit 8, the steam turbine 2 is connected with an imported superheated steam pipeline 9, a drawn-out heating and extraction pipeline 10, a exhaust steam exhaust pipeline 11, the boiler 1 The superheated steam pipeline 9 is connected to the steam turbine 2, and the tail of the boiler 1 is provided with a waste heat recov...

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Abstract

The invention discloses a large-temperature-difference steam exhaust waste heat recovery system of a coal-fired power plant heat supply head station. The large-temperature-difference steam exhaust waste heat recovery system is characterized by comprising a boiler, a steam turbine, a condenser, a waste heat recovery heat exchanger, a steam absorption type heat pump, a steam jet type heat pump, waste heat peak adjusting equipment and an absorption type heat exchange unit. The large-temperature-difference steam exhaust waste heat recovery system solves the problem that low-pressure steam exhaustwaste heat of a steam turbine is not sufficiently recycled at present.

Description

technical field [0001] The invention relates to the technical field of waste heat recovery, in particular to a waste steam waste heat recovery system with a large temperature difference at the first heat supply station of a coal-fired power plant. Background technique [0002] In recent years, with the maturity and development of heat pump technology, various heat pump heating technologies have been widely promoted and applied in my country. A heat pump is a device that uses high-level energy to make a low-level heat source flow to a high-level heat source. (that is, the heat obtained by the high-level heat source) is the sum of the consumed high-level energy and the heat absorbed from the low-level heat source, so the heat pump device can make full use of low-grade energy and save high-grade energy. [0003] At present, the use of high-quality steam and low-quality steam in the steam heating system in cogeneration is still relatively common. Many medium-pressure steam produc...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D3/00F24D3/10F24D19/10
CPCF24D3/00F24D3/10F24D19/1015F24D2200/16
Inventor 王清正
Owner ZHONGQINGYUAN ENVIRONMENTAL PROTECTION ENERGY SAVING
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