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

Steam turbine high-pressure main steam regulating valve bank

A technology of main steam valve and regulating valve, which is applied in the direction of mechanical equipment, engine components, machines/engines, etc., and can solve problems such as the difficulty in designing the structure and size of valve groups and their accessories, thermal stress of large valves, and thick walls

Active Publication Date: 2018-11-16
DONGFANG TURBINE CO LTD +1
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the improvement of the main steam parameters of the steam turbine and the limitation of the material properties of conventional materials, the design wall thickness of single-layer valves is getting thicker and thicker. Stress affects the safe operation of the unit; if all nickel-based high-temperature materials are used to manufacture valves, the cost will be greatly increased

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
  • Steam turbine high-pressure main steam regulating valve bank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention will be further described below in combination with specific embodiments and accompanying drawings.

[0019] 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 and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention

[0020] Such as figure 1 It is an embodiment of a steam turbine high-pressure main steam regulating valve group of the present invention, a steam turbine high-pressure main steam regulating valve group, comprising: a main steam valve shell 1, and the main steam valve shell 1 is provided with a main steam valve inner shell 2 The inlet and the regulating valve inner shell 3 are loaded into the inlet. The main steam valve shell 1 has a main steam valve inne...

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 steam turbine high-pressure main steam regulating valve bank. According to the steam turbine high-pressure main steam regulating valve bank, both a main steam valve and a regulating valve are in a double-case structural design in sealed connection and separated by interlayers; inner valve cases are made of high-temperature high-cost materials, and outer valve cases are made of low-price common metal materials; a high-pressure steam inlet pipe is connected with a main steam valve outer case through threads, the main steam valve outer case and a regulating valve outer case are connected through threads, a high-pressure steam inlet pipe and a main steam valve inner case are sealed in a C type, and the main steam valve inner case and a regulating valve inner case aresealed in a C type; the interlayer between the inner and outer cases of the main steam valve and the interlayer between the inner and outer cases of the regulating valve are two relatively low-temperature steam chambers to form specific temperature fields and meanwhile are communicated with each other.

Description

technical field [0001] The invention relates to the technical field of steam turbines, in particular to a high-pressure main steam regulating valve group of a steam turbine. Background technique [0002] The high-pressure main steam regulating valve group is one of the key parts of the steam turbine unit, and its reliability is crucial to the safety of the unit operation. With the continuous improvement of green and low-carbon development and energy structure upgrading requirements, the country has also intensified research efforts on steam turbines with higher parameters. As a key part of steam turbine installations, materials and Structure is one of the research focuses of high parameter steam turbine. [0003] Due to the improvement of the main steam parameters of the steam turbine and the limitation of the material properties of conventional materials, the design wall thickness of single-layer valves is getting thicker and thicker. Stress affects the safe operation of ...

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
IPC IPC(8): F01D17/10
CPCF01D17/10
Inventor 高展羽张晓东王建伟王鑫谢涛赵海峰王娟翟璇李志明张文挺
Owner DONGFANG TURBINE 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