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

Method for detecting leakproofness of boiler

A detection method and tightness technology, applied in the field of boiler tightness detection, can solve the problems of lack of inspection means, low efficiency of tightness inspection, small inspection scope, etc. The effect of utilization efficiency

Inactive Publication Date: 2014-01-01
CHINA SHENHUA ENERGY CO LTD +2
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this theoretical method is applied to large-scale boiler equipment in the field of thermal power generation, there are shortcomings such as small inspection range, lack of specific inspection methods, and low efficiency of strict inspection.

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
  • Method for detecting leakproofness of boiler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Install 8 and 60 colored smoke bombs at the outlet of the boiler blower and the outlet of the burner respectively, start the blower and the induced draft fan to increase the pressure of the boiler furnace, increase the gauge pressure in the boiler furnace to 300Pa, and ignite the outlet of the boiler blower Colored smoke bombs. Then the gauge pressure in the boiler furnace is raised to 600Pa, and 6 colored smoke bombs at the outlet of the burner are ignited every 2 minutes, and the points are finished in 10 times. Check and mark the discharge point of the colored smoke outside the boiler, which is the air leakage point of the boiler furnace and tail flue, and arrange maintenance forces to deal with the marked air leakage point.

[0021] After repairing the marked air leakage point, run the boiler equipment again, and set the pressure in the boiler furnace to 300Pa, and find that the gauge pressure in the boiler furnace is stable at 300Pa, indicating that the air leakage...

Embodiment 2

[0023] Install 30 colored smoke bombs and 40 colored smoke bombs at the outlet of the boiler blower and the outlet of the burner respectively, start the blower and the induced draft fan to increase the pressure of the boiler furnace, increase the gauge pressure in the boiler furnace to 250Pa, and ignite the outlet of the boiler blower Colored smoke bombs. Then the gauge pressure in the boiler furnace is raised to 520Pa, and the colored smoke bombs at the outlet of 5 burners are ignited every 2 minutes, and the points are finished in 8 times. Check and mark the discharge point of the colored smoke outside the boiler, which is the air leakage point of the boiler furnace and tail flue, and arrange maintenance forces to deal with the marked air leakage point.

[0024] After repairing the marked air leakage point, run the boiler equipment again, and set the pressure in the boiler furnace to 300Pa, and find that the gauge pressure in the boiler furnace is stable at 300Pa, indicating...

Embodiment 3

[0026] Set 15 colored smoke bombs and 20 colored smoke bombs at the outlet of the boiler blower and the outlet of the burner respectively, start the blower and the induced draft fan to increase the pressure of the boiler furnace, raise the gauge pressure in the boiler furnace to 200Pa, and ignite the outlet of the boiler blower Colored smoke bombs. Then the gauge pressure in the boiler furnace is raised to 500Pa, and 4 colored smoke bombs at the outlet of the burner are ignited every 2 minutes, and the points are finished in 5 times. Check and mark the discharge point of the colored smoke outside the boiler, which is the air leakage point of the boiler furnace and tail flue, and arrange maintenance forces to deal with the marked air leakage point.

[0027] After repairing the marked air leakage point, run the boiler equipment again, and set the pressure in the boiler furnace to 300Pa, and find that the gauge pressure in the boiler furnace is stable at 300Pa, indicating that th...

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 method for detecting the leakproofness of a boiler. The boiler comprises a boiler furnace, a rear smoke channel, a blower and a fuel nozzle. An outlet of the blower and an outlet of the fuel nozzle are communicated with the boiler furnace. The method comprises the steps that at least one of the boiler furnace, the outlet of the blower and the outlet of the fuel nozzle is provided with a color smoke shell, the pressure in the boiler furnace is increased to enable the pressure in the boiler furnace to be higher than the pressure outside the boiler, and then the color smoke shell is ignited. The emission points of color smoke outside the boiler are checked and marked, namely, air leak points of the boiler furnace and the rear smoke channel are found, the air leak rate of the boiler furnace and the rear smoke channel can be greatly reduced by patching the air leak points timely, on-site environmental pollution is alleviated, the use efficiency of fuel in a burning system in a large-capacity boiler is improved, and energy conservation and environmental protection are facilitated.

Description

technical field [0001] The invention relates to a method for detecting the tightness of a boiler. Background technique [0002] Electricity is an important energy source for the development of the national economy. Thermal power generation is the main method for producing electric energy in China and many countries in the world. The basic components of the thermal power generation production process include combustion systems, steam-water systems, electrical systems and control systems. The boilers in the combustion system Including boiler furnace, tail flue, blower and burner and other components. At present, thermal power plants mainly inject air into the boiler furnace to cause fuel combustion such as coal, oil or natural gas in the boiler furnace, and release the energy contained in the fuel in the form of heat energy, which is used to heat the water in the boiler to form steam. The steam enters the steam turbine along the pipeline and expands to do work, which drives t...

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): G01M3/20
Inventor 孙宝华刘响江朱向昌陈永东
Owner CHINA SHENHUA ENERGY 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