Ash injector fo gas pulsing weak-explosion wave

A gas and pulse technology, applied in the direction of combustion method, removal of solid residue, treatment of combustion products, etc., can solve problems such as insufficient soot blowing energy intensity, poor equipment reliability, and limited range of action

Inactive Publication Date: 2007-06-20
CHINA SHENHUA ENERGY CO LTD
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although most of the heating surfaces of boilers at home and abroad are equipped with the above-mentioned traditional soot blowing devices, the efficiency is low and most of them are idle.
The common disadvantages of the above-mentioned sootblowing methods are that the sootblowing energy intensity is not enough and the scope of action is limited. For example, the airflow jet or disturbance generated by steam and air sootbl

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
  • Ash injector fo gas pulsing weak-explosion wave
  • Ash injector fo gas pulsing weak-explosion wave

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Fig. 1 and Fig. 2 are respectively the principle diagram and system diagram of the embodiment of the weak blast wave dust cleaner according to the present invention.

[0023] As can be seen from Figures 1 and 2, the weak explosive wave sootblower of this embodiment consists of a gas source 1, a flow measurement unit 2, a mixed ignition unit 3, a soot blowing distribution unit 4, a soot blowing power unit 5 and a soot blowing control unit 6 constitute. Among them, the gas source is composed of air and acetylene gas, and the ratio of air and acetylene gas is controlled by the flow measurement unit 2. In the flow measurement unit 2, the air and acetylene gas pass through the respective ball valve 22 and filter 21 respectively, and pass through the control unit The PLC sub-control in 6 controls the gas flow. Subsequently, air and acetylene gas with an appropriate ratio enter the mixed ignition unit 3, and enter the mixed ignition tank through the check valve respectively, ...

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 comprises a combustible gas source, a flow-measuring unit for controlling the ratio of the premix gas, a mixing ignition unit for mixing the premix gas uniformly and lighting the premix gas to produce weak explosive wave high-speed jet, a soot-blowing power unit for speeding-up the spread of the gas flow flame and transmitting the spherical shock wave to the heating surface needing soot-blowing and a soot-blowing control unit for realizing automatically all kinds of soot-blowing operations according to the requirement of the given working process by collecting the field switch quantity signal and the analog quantity signal.

Description

technical field [0001] The invention relates to a boiler soot blowing device, in particular to a gas pulse weak explosion wave soot cleaner used for soot blowing at the heated area of ​​the boiler tail of a coal-fired power plant. Background technique [0002] At present, in the power industry, it is necessary to remove the ash and slagging on the heating surface of the boiler and keep it clean to ensure safe and economical operation of the boiler. According to tests, the thermal conductivity of the ash layer is only 1 / 400 to 1 / 1000 of that of the metal pipe wall. Therefore, if the heating area of ​​the boiler is ash, the heat transfer will deteriorate, the exhaust gas temperature will increase, the heat loss of the exhaust gas will increase, and the boiler will be reduced. Thermal efficiency. The ash accumulation will block the flue, which will increase the flow resistance of the convection flue, increase power consumption, and reduce the output of the boiler. In severe ca...

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): F23J3/02
Inventor 唐建城李宝义李振忠王松峰
Owner CHINA SHENHUA ENERGY CO LTD
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