Check patentability & draft patents in minutes with Patsnap Eureka AI!

Little oil ignited swirling pulverized coal combustion device

A pulverized coal combustion and low-oil ignition technology, which is applied in the direction of using multiple fuels for combustion, combustion ignition, and combustion methods, can solve the problems of large oil consumption, high pollutant emissions of coal-fired boilers, and energy waste.

Inactive Publication Date: 2010-04-14
HARBIN INST OF TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a low-oil ignition swirling pulverized coal combustion device to solve the problems of large oil consumption, energy waste, and high pollutant discharge of coal-fired boilers in existing power station coal-fired boiler combustion devices

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
  • Little oil ignited swirling pulverized coal combustion device
  • Little oil ignited swirling pulverized coal combustion device
  • Little oil ignited swirling pulverized coal combustion device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0005] Specific implementation mode one: (see figure 1 , figure 2 ) The present embodiment is made up of coal-fired ignition device 2 and graded burner 3, and coal-fired ignition device 2 is made up of oil, coal burner pipe 2-2, main fuel oil pipe 2-4, flame detection pipe 2-5, auxiliary fuel oil pipe 2-6 and the outer pipe 2-7, the oil and coal burner pipe 2-2 is arranged on the outlet side of the outer pipe 2-7, the outlet end of the main fuel oil pipe 2-4 is connected with the oil and coal burner pipe 2- 2 One side of the inlet end is connected, the middle part of the main fuel pipe 2-4 is fixedly connected with the outer pipe 2-7, and the outlet end of the auxiliary fuel pipe 2-6 is connected with one side of the outlet end of the oil and coal burner pipe 2-2 , the middle part of the auxiliary fuel pipe 2-6 is fixedly connected with the outer pipe 2-7, the fire detection pipe 2-5 is arranged between the main fuel pipe 2-4 and the auxiliary fuel pipe 2-6, and one end of t...

specific Embodiment approach 2

[0006] Specific implementation mode two: (see figure 1 , figure 2 ) The difference between this embodiment and the first embodiment is that the cross-sectional area of ​​the inlet end of the oil and coal burner pipe 2-2 is smaller than the cross-sectional area of ​​the outlet end. Other compositions and connections are the same as in the first embodiment. Changing the structure of the oil and coal burner tube 2-2 can make the pulverized coal gradually diffuse and fully mix with the oxygen added by the swirling wind on the inner wall, which is beneficial to the combustion and the fullness of the flame at the outlet of the pulverized coal combustion device.

specific Embodiment approach 3

[0007] Specific implementation mode three: (see figure 1 , figure 2 ) The difference between this embodiment and the first embodiment is that the cross-sectional area of ​​the outlet end of the oil and coal burner pipe 2-2 is equal to the cross-sectional area of ​​the inlet end. Other compositions and connections are the same as in the first embodiment. Changing the structure of the oil and coal burner tube 2-2 can increase the amount of concentrated coal powder and reduce the amount of air, so that the burning coal powder is gradually diffused and fully mixed with the oxygen added by the swirling wind on the inner wall.

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

A low-oil-consumption ignition swirling pulverized coal burning device relates to a pulverized coal burning device. The invention aims to solve the problems of large oil consumption, energy waste andhigh pollutant discharge of a coal-fired boiler existing in the burning device in the coal-fired boiler of power plants. An inlet end of an inner wall swirling wind cover (3-1) in the invention is connected with an outlet end of an external pipe (2-7), a passage exit in a duct (3-8) is respectively connected with the inner wall swirling wind cover (3-1), a swirling outer secondary wind cover (3-4)and a direct secondary wind cover (3-9), and the passage existing in the duct (3-8) are respectively provided with an air volume regulation plate (3-7). The invention has the advantage of reasonablestructure, design and arrangement. The invention burns pulverized coal by using a small amount of oil, oil and gas, natural gas or coal gas, which can save ignition energy, and reduces the discharge of pollutant. The device of the invention has higher safety and reliable properties, which can save 40%-90% fuel oil compared with the prior art.

Description

technical field [0001] The invention relates to a pulverized coal combustion device. Background technique [0002] The arrangement of the combustion device and the ignition oil gun of the existing power station coal-fired boiler has the following forms: 1. The combustion device and the ignition oil gun are arranged separately, and the ignition oil gun is arranged on the coal-fired burner of the boiler, but the nozzle of the ignition oil gun points to the furnace 2. The oil gun is arranged in the nozzle of the burner, which can adopt mechanical atomization or steam atomization. The above two kinds of combustion devices and ignition oil guns have problems such as large amount of fuel, waste of energy, and high pollutant discharge of coal-fired boilers. Contents of the invention [0003] The purpose of the present invention is to provide a low-oil ignition swirling pulverized coal combustion device to solve the problems of large oil consumption, energy waste, and high pollut...

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 Patents(China)
IPC IPC(8): F23C5/32F23Q2/00
Inventor 陈力哲孙锐吴少华
Owner HARBIN INST OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com