High-pressure cylinder rapid starting system for thermal power generation unit set

A unit unit, fast start technology, applied in the direction of engine starting, engine components, machines/engines, etc., can solve the problems of long start time and difficulty in meeting the rapid peak shaving of the power grid.

Inactive Publication Date: 2015-07-15
钱诚
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the start-up time of the generator set is very long, and it is difficult to meet the requirements of fast peak regulation for the power grid

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
  • High-pressure cylinder rapid starting system for thermal power generation unit set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] refer to figure 1 , figure 1 Shown is a system improvement method pointed out by the present invention. Among them, the part inside the dotted line is the improved part, and the part outside the dotted line is the original system.

[0018] When the unit starts, the turbine side gradually opens the steam switching shut-off valve (V3) of the adjacent unit until it is fully open when the newly added steam switching shut-off valve (V1) of the local unit and the steam switching regulating valve (V2) of the local unit are closed. Then gradually open the steam switching temperature and pressure reducing valve (V4) of the adjacent unit. At this time, the main steam (or reheated steam) of the adjacent steam turbine passes through the steam trap before the high-pressure main steam valve of the unit to heat the relevant pipelines. When the steam temperature in front of the high-pressure main steam valve of the machine reaches the starting parameters of the machine, gradually op...

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 discloses a high-pressure cylinder rapid starting system for a thermal power generation unit set. In the system, a steam-water system of a thermal power plant unit generator set is improved specific to a set adopting a high-pressure cylinder starting way. The improvements are that: a cutoff valve (V1) and a regulating valve (V2) are added on an original main steam pipeline of a steam turbine of the set; a branch is added on a condensed water pipeline of the set, and condensed water flowing through the regulating valve (V5) is supplied to an adjacent set steam condenser; a branch is added on a main steam (or reheated steam) pipeline of an adjacent set, and steam flowing through a cutoff valve (V3) and a cooling and decompressing valve (V4) is supplied in front of a high-pressure main steam valve of the steam turbine. By adopting the system, the starting grid-connection time of a coal burning (thermal) power plant unit set can be shortened, and the peaking performance of a coal burning (thermal) generator set is improved.

Description

technical field [0001] The invention relates to an improvement of a quick start system of a unit thermal power generating set, which is aimed at the set adopting the high-pressure cylinder starting mode. It belongs to the field of coal-fired power generation, and is especially suitable for large and medium-sized coal-fired power generation unit units. Background technique [0002] In the context of thermal power generation units burning a large amount of fossil fuels, emitting a large amount of harmful gases and dust, leading to climate change and smog, renewable energy such as wind energy and solar energy is increasingly being introduced into the power grid. However, due to the intermittent and uncontrollable nature of renewable energy generation, the grid requires increasingly larger backup capacity. On the one hand, based on the specific national conditions in which coal-fired thermal power generation accounts for a considerable proportion in my country, there will be a ...

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): F01D19/00
Inventor 钱诚
Owner 钱诚
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap