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

Automatic control method for biomass suspension combustion furnace

A technology of suspended combustion and biomass, applied in the direction of controlling combustion, lighting and heating equipment, etc., to improve control accuracy and response speed, realize intelligent control, and improve heat conversion efficiency

Active Publication Date: 2017-07-18
ANHUI BOWEI CHANGAN ELECTRONICS
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The test of artificially adjusting the amount of rice husk feed shows that the adjustment effect is relatively ideal even though the time delay reaches 10-20s when the temperature of the main hot air pipe (that is, the temperature of the flue) is used as the input source.

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
  • Automatic control method for biomass suspension combustion furnace
  • Automatic control method for biomass suspension combustion furnace
  • Automatic control method for biomass suspension combustion furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A rice husk suspension combustion furnace for heating air, and an array of 10×10 steel pipes with a diameter of 10 cm and a length of 30 cm is arranged at the flue opening of the furnace. The high-temperature exhaust gas generated by combustion passes through the gaps between the steel pipe arrays, and the cold air passes through the steel pipes, and the two complete heat exchange.

[0045] For this combustion furnace, when applying the automatic control method of the biomass suspension combustion furnace of the present invention, the input includes the flue temperature and the gas outlet temperature (hot air temperature), wherein the flue temperature is used as the horizontal coordinate axis, and the gas outlet temperature is used as the ordinate Axis; input amount, that is, in the operation of setting each state area of ​​​​the N-dimensional coordinate system, the biomass feed motor is a vibration motor, and the biomass feed amount is determined by the operating freque...

Embodiment 2

[0062] A rice husk suspension combustion furnace using water as heat transfer medium. The circulating water passes through the interlayer outside the furnace, and the high-temperature exhaust gas generated by combustion exchanges heat with the circulating water.

[0063] For this kind of combustion furnace, when applying the automatic control method of the biomass suspension combustion furnace of the present invention, the input includes flue temperature and water outlet temperature, wherein the flue temperature is used as the horizontal axis, and the water outlet temperature is used as the vertical axis. Input amount, that is, in the operation of setting each state area of ​​the N-dimensional coordinate system, the biomass feeding motor is a vibration motor, and the biomass feeding amount is determined by the operating frequency of the vibration motor. The higher the frequency, the faster the feeding speed , the larger the feeding amount, the induced air volume should be incr...

Embodiment 3

[0071] A rice husk suspension combustion furnace using water as heat transfer medium. The circulating water passes through the interlayer outside the furnace, and the high-temperature exhaust gas generated by combustion exchanges heat with the circulating water.

[0072] For this combustion furnace, when applying the automatic control method of the biomass suspension combustion furnace of the present invention, the input includes flue temperature, water outlet temperature and water inlet temperature, wherein the flue temperature is used as the horizontal axis, and the water outlet temperature is used as the vertical axis , the temperature of the water inlet is used as the third-dimensional coordinate axis; the input amount, that is, in the operation of setting each state area of ​​the N-dimensional coordinate system, the biomass feeding motor is a vibration motor, and the biomass feeding amount is determined by the operating frequency of the vibration motor It is determined 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 an automatic control method for a biomass suspension combustion furnace. N input quantities serve as coordinate axes to establish an N-dimension coordinate system. The coordinate axes are subjected to critical value division so that the N-dimension coordinate system can be divided into a plurality of state areas, operation is set for the state areas of the N-dimension coordinate system, and in other words, output quantities are set; and during running of the suspension combustion furnace, the current involved state area is determined by reading input quantity data, and the preset operation of the state area is executed. By means of the automatic control method, the problem that when comburents are different and the feeding speed is different in the biomass combustion furnace, control is hard to achieve is solved, the biomass combustion furnace can be controlled to be stabilized in the high-temperature combustion state, the biomass is combusted more sufficiently, the heat conversion efficiency is improved, and the control precision and the response speed of the biomass combustion furnace are improved; and meanwhile, intelligent control is achieved, personnel guarding is not needed, and the problem of inconstant fuel combustion heat value and friction force is solved as well.

Description

technical field [0001] The invention relates to the field of combustion furnace control, in particular to an automatic control method for a biomass suspension combustion furnace. Background technique [0002] The use of biomass boilers can reduce the consumption of coal, oil, and natural gas. my country's agricultural scale is huge, and straw burning aggravates environmental pollution every year. Efficient and clean biomass boilers can turn waste into treasure. my country's current biomass boiler technology comes from coal-fired and oil-fired boilers, but the control methods of coal-fired and oil-fired boilers are different from those of biomass boilers, and cannot be copied directly. If the combustion parameters of the biomass boiler are not well controlled, the fuel will not be fully burned, and pollution such as PM2.5 will be generated, which is also the problem faced by the current biomass boiler. [0003] As a kind of biomass boiler, the suspension combustion furnace (...

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): F23N5/02
CPCF23N5/02F23N2225/10F23N2225/12F23N2225/18F23N2225/19
Inventor 闫洪亮陈静胡佳李臻马林森邵和江刘园李军
Owner ANHUI BOWEI CHANGAN ELECTRONICS
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