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

Inferior coal micro-oil ignition combustor

A micro-oil ignition and oil burner technology, which is applied in the direction of burners, burners burning powder fuel, combustion ignition, etc., can solve problems such as lack of oxygen, no cooling measures, excess oxygen in low-temperature areas, etc., and achieve long service life , good environmental protection effect, high burning rate

Inactive Publication Date: 2012-05-09
范昌 +2
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese patent ZL03255982.8 adopted a single-side oil gun heating method, which cannot form a rotating flame; although the disclosed patent of Chinese patent CN101135445A has adopted a double-side oil gun arrangement, it does not form a tangential rotary combustion. In the powder combustion chamber, the situation of "oxygen deficiency in the high temperature area and excess oxygen in the low temperature area" was caused
[0006] Although the Chinese patent CN 201093529Y also installed a blunt body in the burner, there is no cooling measure, which makes it unable to work normally in practice, and it has a great impact on the flow area of ​​the burner, which will inevitably change the original performance of the burner. and cause severe wear and tear

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
  • Inferior coal micro-oil ignition combustor
  • Inferior coal micro-oil ignition combustor
  • Inferior coal micro-oil ignition combustor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] Embodiment: In the low-quality coal micro-oil ignition burner in the figure, its inlet section 1 is connected to the original pulverized coal pipe, and the air-powder separation ring 2 is installed between the inlet section 1 and the light-phase pulverized coal chamber 6; The phase pulverized coal ignition chamber 7 is installed inside the light phase pulverized coal chamber 6 and is connected with it by ribs 8; Phase pulverized coal chamber 6; there is a wing-shaped anti-wear block 3 in the powder incoming direction of the oil burner 4, which is welded together with the oil burner 4, the primary dense phase pulverized coal ignition chamber 7, and the light phase pulverized coal chamber 6 The flame detection tube 5 is installed on the base of the oil burner 4 in a parallel manner, and passes through the light-phase pulverized coal chamber 6; the outlet of the first-level dense-phase pulverized coal ignition chamber 7 is installed with a secondary light-phase pulverized c...

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

An inferior coal micro-oil ignition combustor comprises a streamlined air powder separation ring, a bidirectional cyclone oil combustor, a wing-shaped anti-friction block, a primary dense-phase coal powder combustion chamber, a secondary dilute-phase coal powder combustion chamber, a V-shaped cavity backflow blunt body, a circumferential cooling bellows and the like, employs a principle of gas-solid two phase flow separation, a principle of oil flame two-way cyclone ignition, backflow high-temperature flue gas of a blunt body, a principle of energy repeated utilization, a principle of coal powder graded ignition and energy gradual enlargement, forms a power field with low air speed, high density, strong eddy flow, strong backflow in the combustor, and creates favorable condition for firing coal powder, so as to effectively solve the problems of firing difficulty and low burn-out ratio of inferior coal. The combustor is capable of igniting inferior coal of 4 to 10 tons by using oil capacity of 150kg / h, which has an oil-saving ratio more than 80%, service life more than 4 years, and is beneficial for popularization in related industries.

Description

technical field [0001] The invention relates to a cold-start and low-load stable combustion device for a boiler in a power plant, especially the design of a low-quality coal-fired boiler. Background technique [0002] At present, there are a large number of power station boilers burning low-quality coal in my country, and their ignition and low-load stable combustion consume a huge amount of oil. A 200MW boiler consumes about 50-70 tons of oil per cold start, a 300MW boiler consumes about 60-80 tons of oil, and a 600MW boiler consumes about 100 tons of oil. According to statistical data, about 4.5 to 5.4 billion yuan is needed for boiler ignition oil every year. [0003] In response to this problem, relevant industry personnel have also done a lot of technical research, but there are still many problems. [0004] For example, Chinese patent ZL200520101974.5 discloses a low-coal and micro-oil cold-state ignition and ultra-low-load stable combustion burner. It has a pulveri...

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): F23D1/00F23Q9/00
Inventor 闫高程范昌李涛金伟强杨声亮杨晓光霍宇霆
Owner 范昌
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