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

Header of ultra supercritical unit boiler in above 620 DEG C

A technology of ultra-supercritical units and headers, which is applied in the direction of boiler drums/box headers, etc., and can solve problems such as failure to meet boiler automatic adjustment performance requirements and low operational reliability

Inactive Publication Date: 2015-10-28
SHANGHAI BOILER WORKS
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ultra-supercritical unit with steam parameters exceeding 620°C can improve the thermal efficiency of the unit. However, the existing boiler outlet header cannot meet the peak-shaving performance of the steam boiler exceeding 620°C and the automatic adjustment performance requirements of the boiler to adapt to the load change of the unit, and the operation reliability is not high.

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
  • Header of ultra supercritical unit boiler in above 620 DEG C
  • Header of ultra supercritical unit boiler in above 620 DEG C

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

[0013] The invention provides a new type of superheater or reheater outlet header applied to super-supercritical unit boiler superheater or reheater with steam parameters exceeding 620°C. The material uses Fe-Ni-Cr aging-strengthened iron-nickel-based superalloy large-diameter tube and small caliber tube. Such as figure 1 As shown, including the outlet header of the final superheater or the outlet header 1 of the final reheater, the material is Fe-Ni-Cr aging-strengthened iron-nickel-based superalloy large-diameter tube; the header base 2 is made of Fe -Ni-Cr aging-strengthened iron-nickel-based superalloy small-diameter tube; final stage superheater or final reheater tube 3, the material is high-temperature-resistant austenitic stainless steel small-diameter tube, and the component size is calculated according to the design para...

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 relates to a header of an ultra supercritical unit boiler in above 620 DEG C. The header comprises a header body and a tube base. One end of the tube base is welded with the header body, and the other end is welded with the pipe of a finishing superheater or a finish-stage reheater. The header is characterized in that the header body is manufactured by a Fe-Ni-Cr ageing strengthening type Fe-Ni matrix high-temperature alloy large-diameter tube, and the tube base is manufactured by a Fe-Ni-Cr ageing strengthening type Fe-Ni matrix high-temperature alloy small-diameter tube. The invention provides the superheater or reheater outlet header applied in steam parameter ultra supercritical unit boiler in above 620 DEG C, and the material is the Fe-Ni-Cr ageing strengthening type Fe-Ni matrix high-temperature alloy large-diameter tube. The material is excellent in high-temperature oxidizability, and has excellent practical value.

Description

technical field [0001] The invention relates to an outlet header applied to the final-stage superheater or final-stage reheater of a boiler of an ultra-supercritical unit with an ultra-620°C temperature. Background technique [0002] With the rapid development of the national economy, energy shortages and environmental degradation are becoming more and more serious, especially the smog that has swept the central and eastern regions in recent years has attracted great attention at home and abroad. Among the air-polluting emissions, the emissions of pollutants (mainly carbon dioxide) from coal-fired power stations account for an important part of the total emissions. main strategic goals. It has been proved that improving the steam parameters of the generator set and improving the power generation efficiency is an important way to reduce coal consumption and reduce pollutant emissions. [0003] Under the above background, ultra-supercritical units with steam parameters excee...

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): F22B37/22
Inventor 田志豪王煜王建泳王崇斌金用强佟辉朱更秦升
Owner SHANGHAI BOILER WORKS
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