Feed pump turbine system

A technology for feed water pump steam turbine and generator, which is applied in control systems, mechanical equipment, control generators, etc., can solve the problem of low energy saving efficiency, and achieve the effect of improving efficiency, low cost and high reliability

Active Publication Date: 2021-06-15
CHINA SHENHUA ENERGY CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a feed water pump steam turbine system to solve the problem of low energy saving efficiency of the existing feed water pump steam turbine system

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Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of this specification clearer, the technical solution of this specification will be clearly and completely described below in conjunction with specific embodiments of this specification and corresponding drawings. Apparently, the described embodiments are only some of the embodiments in this specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this specification.

[0035] The technical solutions provided by each embodiment of this specification will be described in detail below in conjunction with the accompanying drawings.

[0036] refer to figure 1 , figure 1 It is a structural schematic diagram of the feedwater pump steam turbine in the embodiment of this specification.

[0037] Such as figure 1 As shown, the feedwater pump turbine system 10 in...

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Abstract

The invention discloses a feed pump steam turbine system. According to the feed pump steam turbine system,a control input end of the feed pump steam turbine receives an external instruction carrying a demand load, outputs a first rotating speed and a first load through a first control output end of the feed pump steam turbine, and outputs the first rotating speed and a second load through a second control output end of the feed pump steam turbine; the control end of a feed pump is connected with the first control output end of the feed pump turbine; water is supplied to the feed water output end of the feed pump according to the first rotating speed and the first load output by the first control output end; the control end of a speed regulator is connected to the second control output end of the feed pump turbine, adjusts the first rotating speed output by the second control output end to a constant second rotating speed, and outputs the second rotating speed and a second load to the load end of the speed regulator; the control end of the generator is connected to the load end of the speed regulator and outputs an electric quantity to the power output end of the generator according to the second rotating speed and the second load output by the load end. The energy-saving efficiency of the feed pump turbine system can be effectively improved.

Description

technical field [0001] This specification relates to the field of thermal power generation, in particular to a feedwater pump steam turbine system. Background technique [0002] In order to increase the number of regenerative extraction steam stages in thermal power plants, reduce the superheat of each regenerative extraction steam, and improve the cycle thermal efficiency of the unit, at present, the supercritical unit is trying to use the back pressure / back pumping feed pump turbine to supply steam to the high pressure heater. In addition to driving the feed water pump, the steam turbine is also equipped with a small generator, and the exhaust steam is discharged into the deaerator. The feedwater pump is connected to the water supply system including large generator sets, and the small generator is connected to external power supply equipment, for example, merged into the factory network to reduce the power consumption rate of the factory to achieve energy saving effects. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/06H02P9/04F01D21/00H02P101/20
CPCH02P9/06H02P9/04F01D21/00H02P2101/20
Inventor 郭永斌陈伟中程辉王顶磊魏新明欧阳朝王春雷
Owner CHINA SHENHUA ENERGY CO LTD
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