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A Boiler Feedwater Heating System for Parallel Operation of Steam Turbines

A heating system and boiler feed water technology, applied in the field of boiler feed water heating, can solve the problems of low efficiency, high consumption of water supply system, etc.

Active Publication Date: 2018-02-06
李俊峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to propose a steam turbine unit boiler feed water heating system that operates in parallel to solve the excessive consumption and low efficiency of the existing boiler feed water system.

Method used

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  • A Boiler Feedwater Heating System for Parallel Operation of Steam Turbines

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing, a kind of steam turbine unit boiler feedwater heating system of parallel operation of the present invention will be further described: this embodiment is only used to illustrate the present invention and is not intended to limit the scope of the present invention, and those skilled in the art will understand various aspects of the present invention All modifications of the valence form fall within the scope defined by the appended claims of the present application.

[0018] As shown in the figure, a boiler feedwater heating system of steam turbine units operating in parallel includes a boiler feedwater heating system A connected to M high backpressure steam turbines, a heat pump 10, and a boiler feedwater heating system connected to N low backpressure steam turbines B and control system; heating system A and heating system B respectively include a condenser 5 and a condensate pool 6 connected in series with the boiler 1 and...

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Abstract

The invention provides a boiler feed water heating system for steam turbine units operating in parallel, including a boiler, a high back pressure steam turbine, a low back pressure steam turbine, a condenser, a condensed water pool, a circulating cooling water pump, a circulating water cooling tower, and a high pressure heater , low-pressure heaters, and deaerators, use steam turbines with different exhaust back pressures running in parallel, use high back pressure steam extraction and circulating water waste heat to replace low back pressure turbine extraction to heat low back pressure turbine boiler feed water, to achieve The purpose of energy saving is to reduce the coal consumption of steam turbine for power generation.

Description

technical field [0001] The invention relates to the field of boiler feed water heating, in particular to a boiler feed water heating system of steam turbine units operating in parallel. Background technique [0002] The energy conversion process when the steam turbine unit is working is that the steam generated by the boiler becomes exhausted steam after the steam turbine does work, and the exhausted steam is cooled by the cooling system behind the steam turbine and then condenses into water. The condensed water is used as boiler feed water again, and then It is sent back to the boiler to become steam, and the steam then enters the steam turbine to do work. In this cycle, the condensed water needs to be heated to the design temperature of the boiler feed water before being sent to the boiler as boiler feed water. The heat source for heating the boiler feed water comes from the low pressure of the steam turbine. The heating equipment used to heat the boiler feed water is boil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K17/02F01K11/02F22D1/50F22D5/26F22D11/06
Inventor 李俊峰王凡
Owner 李俊峰