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

Air preheater potential operation safety hazard elimination system and control method thereof

An air preheater and elimination system technology, applied in the field of coal-fired boilers, can solve problems such as air preheater blockage

Pending Publication Date: 2020-10-23
山东丰普环保科技有限公司 +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The air preheater operation safety hazard elimination system can increase the flue gas temperature entering the air preheater flue gas inlet and the cold air temperature at the air preheater air inlet according to the operation needs of the unit, and can prevent air preheater The generated ammonium bisulfate can effectively solve the problem of blockage of the air preheater that has occurred, which is conducive to improving the safety of the air preheater. Safe, stable and efficient operation of the unit

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
  • Air preheater potential operation safety hazard elimination system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] In order to explain the overall concept of the present application more clearly, the following detailed description will be given by way of examples in combination with the accompanying drawings.

[0052] In order to understand the above-mentioned purpose, features and advantages of the present application more clearly, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0053] In the following description, many specific details are set forth in order to fully understand the application, but the application can also be implemented in other ways different from those described here, therefore, the protection scope of the application is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0054] refer...

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 an air preheater potential operation safety hazard elimination system and a control method thereof. The air preheater potential operation safety hazard elimination system comprises a bypass flue arranged between the part, in front of a low-temperature superheater, of a boiler flue and an inlet of an SCR reactor. A smoke damper is arranged at an inlet of the bypass flue. Aheat pipe heat exchanger is arranged on a flue connected with a smoke outlet of an air preheater. Air heaters are arranged at inlets of an air feeder and a primary air fan. The air preheater potentialoperation safety hazard elimination system can raise the smoke temperature of a smoke inlet of the air preheater and the cold air temperature of an air inlet of the air preheater according to the respectively of unit operation, can prevent hydrogen sulfate from being generated on the air preheater and can improve the operation safety of the air preheater and ensure safe, stable and efficient operation of a boiler unit.

Description

technical field [0001] The application relates to a system for eliminating potential safety hazards in the operation of an air preheater and a control method thereof, belonging to the technical field of coal-fired boilers. Background technique [0002] At present, domestic thermal power plants generally use SCR (Selective Catalytic Reduction) to control NO X High-temperature catalysts are mostly used, and the reaction temperature range is 320-420°C. After SCR is installed in coal-fired generating units, the problem of blockage of the air preheater often occurs. The main reason for the blockage of the air preheater is that with the continuous increase of the installed capacity of clean energy power generation, thermal power units undertake more and more peak-shaving tasks, although most thermal power plants have carried out wide-load denitrification in recent years Transformation to meet the temperature requirements of the low-load SCR reactor, but when the boiler load drops...

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): F23L15/04F23J15/00F28F27/02
CPCF23J15/006F23L15/04F28F27/02Y02E20/34
Inventor 吴琪珑李金贵
Owner 山东丰普环保科技有限公司
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