Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rotating speed regulating device and method for steam-driven main feed water pump of nuclear power station

A technology of main feed water pump and adjustment device, applied in pump control, machine/engine, liquid variable capacity machinery, etc. question

Active Publication Date: 2019-08-13
CHINA NUCLEAR POWER TECH RES INST CO LTD +3
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, most of the steam-driven main feedwater pump speed adjustments of domestic and foreign nuclear power generating units are realized by the adjustment devices designed by the feed pump manufacturers. However, the adjustment devices designed by the existing manufacturers have backward technology and adjustment mechanisms Stiffness, poor maintainability, slow system response and other characteristics, resulting in poor control over the start-up control and stable operation of the steam-driven main feed water pump

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rotating speed regulating device and method for steam-driven main feed water pump of nuclear power station
  • Rotating speed regulating device and method for steam-driven main feed water pump of nuclear power station
  • Rotating speed regulating device and method for steam-driven main feed water pump of nuclear power station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0050] Such as figure 1 As shown, in the embodiment of the present invention, a nuclear power plant steam-driven main feedwater pump speed adjustment device is provided, which is used for the steam-driven main feedwater pump (not shown) in the nuclear power plant feedwater flow control system (not shown). It includes: an adjustment control unit 1, and a speed preset unit 2 connected to the adjustment control unit 1, a speed acquisition unit 3, an operating state acquisition unit 4, a start command acquisition unit 5 and a drive unit 6; wherein,

[0051] The speed preset unit 2 is used to receive the preset theoretical speed of the steam-driven main feed water pump; wherein, the theoretical speed of the steam-driven main feed water pump received by the speed preset...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a rotating speed regulating device for a steam-driven main feed water pump of a nuclear power station; the rotating speed regulating device comprises a regulating control unit,a rotating speed preset unit, a rotating speed collection unit, an operating state collection unit, a starting command collection unit and a drive unit, wherein the rotating speed preset unit receives the theoretical rotating speed preset to the steam-driven main feed water pump; the rotating speed collection unit acquires the actual rotating speed of the steam-driven main feed water pump; the operating state collection unit acquires the real-time temperature of the steam-driven main feed water pump; the starting command collection unit acquires a starting mode command issued by an user; theregulating control unit determines the current working stage of the steam-driven main feed water pump according to the actual rotating speed and the real-time temperature, and further selects the starting mode command or the theoretical rotating speed to realize the starting and / or rotating speed control of the steam-drive main feed water pump. The rotating speed regulating device and the method provided by the invention have the characteristics of flexible adjustment mechanism, high maintainability and fast system response, and can realize safe start control and smooth operation control of the steam-driven main feed water pump.

Description

technical field [0001] The invention relates to the technical field of steam-driven main feed water pumps in nuclear power plants, in particular to a device and method for adjusting the speed of steam-driven main feed water pumps in nuclear power plants. Background technique [0002] In the process system design of nuclear power plants, the feed water flow control system (ARE) controls the water demand of the secondary circuit of the entire nuclear power plant. The feed water flow control system changes the feed water flow and pressure based on the speed adjustment of the steam-driven main feed water pump, realizes the water supply to the three steam generators, and eliminates the feed water coupling phenomenon between the three steam generators to ensure the supply of the steam generators. The pressure difference between the jellyfish pipe and the steam main pipe is equal to the setting value of a random group load change, so the speed adjustment of the steam-driven main fe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/20F04B49/06F04B49/10F04B49/02
CPCF04B49/02F04B49/06F04B49/10F04B49/20
Inventor 赵东升朱野汤立宏李大伟杨壮豪孙跃王晓刚吕跃跃
Owner CHINA NUCLEAR POWER TECH RES INST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com