CN201093488Y - Horizontal shade type micro oil mass igniting powdered coal burner - Google Patents

Horizontal shade type micro oil mass igniting powdered coal burner Download PDF

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Publication number
CN201093488Y
CN201093488Y CNU2007201169332U CN200720116933U CN201093488Y CN 201093488 Y CN201093488 Y CN 201093488Y CN U2007201169332 U CNU2007201169332 U CN U2007201169332U CN 200720116933 U CN200720116933 U CN 200720116933U CN 201093488 Y CN201093488 Y CN 201093488Y
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CN
China
Prior art keywords
burner
chamber
spout
pulverized coal
housing
Prior art date
Application number
CNU2007201169332U
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Chinese (zh)
Inventor
杜京武
Original Assignee
杜京武
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Priority to CNU2007201169332U priority Critical patent/CN201093488Y/en
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Publication of CN201093488Y publication Critical patent/CN201093488Y/en

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Abstract

The utility model provides a horizontal thick-and-thin miniature oil-volume ignition coal-powder burner, relating to the coal-powder burner and aiming to solve the problems of single function, invisible oil-saving, great influence on the air power field of a boiler and easily-worn guide plate of the existing ignition coal-powder burner. The inlets of a gas film wind box and a peripheral wind box are respectively arranged at the bottom sides of the gas film wind box and the peripheral wind box; a thick-phase coal-powder guide plate is fixed at the middle part of a burner secondary chamber shell; a burner secondary chamber is formed in the burner secondary chamber shell at the outlet end of the thick-phase coal-powder guide plate; a burner primary chamber is formed in the burner secondary chamber shell at the lower side of the thick-phase coal-powder guide plate. The utility model used as a main burner can also be operated as the horizontal thick-and-thin coal-powder burner, realizing not only the function of reducing discharge of the pollutant such as NOx through the horizontal thick-and-thin coal-powder burner, but also the low load function of the horizontal thick-and-thin coal-powder burner. The horizontal thick-and-thin miniature oil-volume ignition coal-powder burner has high oil-saving rate, little influence on the air power field of the boiler, convenient maintenance and service, and low cost.

Description

The little oil mass igniting pulverized coal burner of horizontal bias type
Technical field
The utility model relates to a kind of coal burner.
Background technology
Existing little oil mass start-up burner and the effect of Gasifying Small Oil Gun igniting pulverized coal burner are more single, perhaps move as main burner, perhaps use as reducing boiler NOx, the steady combustion that perhaps is used for coal burner is used, and have that fuel-economizing is not obvious, big to boiler aerodynamic field influence, the burner resistance is big, easily coking, deflector defective easy to wear in the burner are changed and maintenance deflector difficulty is big, expense is high.
The utility model content
The purpose of this utility model is more single for solving existing little oil mass start-up burner and the effect of Gasifying Small Oil Gun igniting pulverized coal burner, perhaps move as main burner, perhaps use as reducing boiler NOx, the steady combustion that perhaps is used for coal burner is used, and have that fuel-economizing is not obvious, big to boiler aerodynamic field influence, the burner resistance is big, easily coking, deflector defective easy to wear in the burner, change the problem big with maintenance deflector difficulty, that expense is high, provide a kind of horizontal bias type little oil mass igniting pulverized coal burner.The utility model comprises the dense phase pulverized coal rectifying block, air film wind and surrounding air air compartment, main oil gun chamber, the surrounding air housing, spout in the burner, the outer spout of burner, dense phase pulverized coal deflector and burner secondary chamber housing, spout in the burner, the cross section of outer spout of burner and burner secondary chamber housing is all square, the port of export of spout entrance point and burner secondary chamber housing joins in the burner, the surrounding air housing is set in the outside of burner secondary chamber housing leading portion, the outer spout of burner is fixed on the outside of spout in the burner, the entrance point of the outer spout of burner is fixedlyed connected with the port of export of surrounding air housing, form air film wind and surrounding air passage between surrounding air housing and the burner secondary chamber housing, form the surrounding air passage between the spout in outer spout of burner and the burner, be provided with air film wind introducing port between the spout in burner secondary chamber housing and the burner, air film wind and surrounding air air compartment are fixed on the outside of the burner secondary chamber housing of surrounding air housing entrance point one side, air film wind and surrounding air air compartment are communicated with the surrounding air housing is interior, the bottom side of air film wind and surrounding air air compartment is provided with air film wind and surrounding air air compartment inlet, the dense phase pulverized coal deflector is fixed on the middle part in the burner secondary chamber housing, form burner secondary chamber in the burner secondary chamber housing adjacent with the dense phase pulverized coal deflector port of export, form chamber of burner in the burner secondary chamber housing of dense phase pulverized coal deflector downside, the dense phase pulverized coal rectifying block is fixed on the bottom in burner secondary chamber housing import one side, and main oil gun chamber is fixed on the downside of burner secondary chamber housing and is connected with chamber of burner.The beneficial effects of the utility model are: the utility model both can be used as the generating plant pulverized coal boiler start-up burner and had used, and can be used as main burner again and used.Can be used as the operation of horizontal bias burner when moving, both can realize that the horizontal bias burner reduces the function of pollutant emissions such as boiler NOx, can realize the function of horizontal bias burner low-load combustion-stabilizing again as main burner.Rate of economizing gasoline is improved, because horizontal bias burner cocnentration factor height, therefore the coal powder ignition point of high concentration reduces greatly, this part coal dust is lighted the also reduction greatly of required ignition energy after entering chamber of burner, greatly reduce exerting oneself of oil gun like this, thereby improved the rate of economizing gasoline during the boiler ignition start.Influence reduces greatly to the boiler aerodynamic field, and the burner and the former design of boiler of the utility model design differ very little, have guaranteed the flow behavior of a wind in burner substantially, so can reduce the influence to the boiler aerodynamic field greatly.Cell structure of burner is simple, safeguard and maintenance convenient, and expense is low.Can directly in burner, change after the wearing and tearing of dense phase pulverized coal deflector, not need to change whole burner.The burner resistance is littler, and since simple in structure, there is not the part of damming in the burner, little to flow perturbation in the burner, so its resistance reduces greatly.Owing to air film wind and surrounding air are arranged, can prevent coking in the burner.
Description of drawings
Fig. 1 is an overall structure profile of the present utility model, and Fig. 2 is an overall structure schematic diagram of the present utility model, and Fig. 3 is an export structure schematic diagram of the present utility model.
The specific embodiment
The specific embodiment one: (referring to the present embodiment of Fig. 1~Fig. 3) by dense phase pulverized coal rectifying block 1, air film wind and surrounding air air compartment 2, main oil gun chamber 3, surrounding air housing 5, spout 7 in the burner, the outer spout 8 of burner, dense phase pulverized coal deflector 10 and burner secondary chamber housing 13 are formed, spout 7 in the burner, the cross section of outer spout 8 of burner and burner secondary chamber housing 13 is all square, the port of export of spout 7 entrance points and burner secondary chamber housing 13 joins in the burner, surrounding air housing 5 is set in the outside of burner secondary chamber housing 13 leading portions, the outer spout 8 of burner is fixed on the outside of spout 7 in the burner, the entrance point of the outer spout 8 of burner is fixedlyed connected with the port of export of surrounding air housing 5, form air film wind and surrounding air passage 14 between surrounding air housing 5 and the burner secondary chamber housing 13, form surrounding air passage 15 between the spout 7 in outer spout 8 of burner and the burner, be provided with air film wind introducing port 6 between the spout 7 in burner secondary chamber housing 13 and the burner, air film wind and surrounding air air compartment 2 are fixed on the outside of the burner secondary chamber housing 13 of surrounding air housing 5 entrance points one side, air film wind and surrounding air air compartment 2 and 5 interior connections of surrounding air housing, the bottom side of air film wind and surrounding air air compartment 2 is provided with air film wind and surrounding air air compartment inlet 12, dense phase pulverized coal deflector 10 is fixed on the middle part in the burner secondary chamber housing 13, form burner secondary chamber 9 in the burner secondary chamber housing 13 adjacent with dense phase pulverized coal deflector 10 ports of export, form chamber 11 of burner in the burner secondary chamber housing 13 of dense phase pulverized coal deflector 10 downsides, dense phase pulverized coal rectifying block 1 is fixed on the bottom in burner secondary chamber housing 13 imports one side, and main oil gun chamber 3 is fixed on the downside of burner secondary chamber housing 13 and is connected with chamber 11 of burner.
The specific embodiment two: (difference referring to the present embodiment of Fig. 1~Fig. 3) and the specific embodiment one is, it has increased auxiliary oil gun sleeve pipe 4, auxiliary oil gun sleeve pipe 4 be fixed on main oil gun chamber 3 ports of export one side burner secondary chamber housing 13 downside and be connected with chamber 11 of burner.The auxiliary oil gun sleeve pipe 4 that increases can make chamber 11 of burner provide booster flame according to the difference of coal.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment three: the angle a between the horizontal plane of (referring to Fig. 1) present embodiment dense phase pulverized coal deflector 10 and burner secondary chamber housing 13 is 2~7 °.Other composition is identical with the specific embodiment two with annexation.
The specific embodiment four: the angle b between the horizontal plane of (referring to Fig. 1) present embodiment master oil gun chamber 3 and burner secondary chamber housing 13 is 45~63 °.Other composition is identical with the specific embodiment three with annexation.
The specific embodiment five: the angle c between the horizontal plane of auxiliary oil gun sleeve pipe 4 of (referring to Fig. 1) present embodiment and burner secondary chamber housing 13 is 45~63 °.Other composition is identical with the specific embodiment four with annexation.
The specific embodiment six: the width L1 of the surrounding air passage 15 in outer spout 8 of (referring to Fig. 1) present embodiment burner and the burner between the spout 7 is 0~30mm.Other composition is identical with the specific embodiment five with annexation.
The specific embodiment seven: (referring to Fig. 1) present embodiment air film wind introducing port 6 distance L 2 of spout 7 outers to the burner is 0~450mm.Other composition is identical with the specific embodiment six with annexation.
The specific embodiment eight: the distance L 3 that is exported to spout 7 outers in the burner of a chamber 11 of (referring to Fig. 1) present embodiment burner is 0~1000mm.Other composition is identical with the specific embodiment seven with annexation.
Operation principle: by the dense phase pulverized coal behind the horizontal bias inspissator again after 1 rectification of dense phase pulverized coal rectifying block, enter the chamber that dense phase pulverized coal deflector 10 and combustor sidewalls face form, wherein a part enters the chamber 11 of burner in the chamber, the auxiliary oil gun flame that comes with the main oil gun flame and the auxiliary oil gun sleeve pipe 4 (according to the different booster flames that provide of coal) of main oil gun chamber 3 meets, dense phase pulverized coal is lighted in chamber 11 of burner and is burnt, its flame enters burner secondary chamber 9, the dense phase pulverized coal and the dilute phase coal dust that enter in the burner secondary chamber 9 are lighted also partial combustion, the heat that its burning produces is heated to the coal dust in all burners more than the ignition point, after entering burner hearth, these coal dusts meet the i.e. burning rapidly of oxygen, form from the very capable pulverized coal flame stream of steady combustion, thereby substitute big oil gun and realize boiler ignition start, reach the purpose that replace oil with coal is realized fuel-economizing.In order to prevent, determine the size of each lateral access of surrounding air and whether increase the air film cooling air that according to the boiler combustion coal air film cooling air is entered by air film wind introducing port 6 with the burner scaling loss.The surrounding air passage is made of surrounding air housing 5 and burner secondary chamber housing 13, air film wind and surrounding air derive from boiler secondary air, enter air film wind and surrounding air air compartment 2 by air film wind and surrounding air air compartment inlet 12, distribute by air film wind and surrounding air air compartment 2 again.Because burner nozzle is under the hyperthermia radiation, stable in order to guarantee burner operation, spout 8 outside spout 7 and the burner in burner outlet is equipped with resistant to elevated temperatures burner.

Claims (8)

1. little oil mass igniting pulverized coal burner of horizontal bias type, it comprises dense phase pulverized coal rectifying block (1), air film wind and surrounding air air compartment (2), main oil gun chamber (3), surrounding air housing (5), spout (7) in the burner, the outer spout (8) of burner, dense phase pulverized coal deflector (10) and burner secondary chamber housing (13), it is characterized in that spout (7) in the burner, the cross section of outer spout (8) of burner and burner secondary chamber housing (13) is all square, the port of export of spout (7) entrance point and burner secondary chamber housing (13) joins in the burner, surrounding air housing (5) is set in the outside of burner secondary chamber housing (13) leading portion, the outer spout (8) of burner is fixed on the outside of spout (7) in the burner, the entrance point of the outer spout (8) of burner is fixedlyed connected with the port of export of surrounding air housing (5), form air film wind and surrounding air passage (14) between surrounding air housing (5) and the burner secondary chamber housing (13), form surrounding air passage (15) between the spout (7) in outer spout (8) of burner and the burner, be provided with air film wind introducing port (6) between the spout (7) in burner secondary chamber housing (13) and the burner, air film wind and surrounding air air compartment (2) are fixed on the outside of the burner secondary chamber housing (13) of surrounding air housing (5) entrance point one side, air film wind and surrounding air air compartment (2) are communicated with surrounding air housing (5) is interior, the bottom side of air film wind and surrounding air air compartment (2) is provided with air film wind and surrounding air air compartment inlet (12), dense phase pulverized coal deflector (10) is fixed on the middle part in the burner secondary chamber housing (13), form burner secondary chamber (9) in the burner secondary chamber housing (13) adjacent with dense phase pulverized coal deflector (10) port of export, form a chamber of burner (11) in the burner secondary chamber housing (13) of dense phase pulverized coal deflector (10) downside, dense phase pulverized coal rectifying block (1) is fixed on the bottom in burner secondary chamber housing (13) import one side, and main oil gun chamber (3) is fixed on the downside of burner secondary chamber housing (13) and is connected with a chamber of burner (11).
2. the little oil mass igniting pulverized coal burner of horizontal bias type according to claim 1, it is characterized in that it also comprises auxiliary oil gun sleeve pipe (4), auxiliary oil gun sleeve pipe (4) be fixed on main oil gun chamber (3) port of export one side burner secondary chamber housing (13) downside and be connected with a chamber of burner (11).
3. the little oil mass igniting pulverized coal burner of horizontal bias type according to claim 2 is characterized in that the angle (a) between the horizontal plane of dense phase pulverized coal deflector (10) and burner secondary chamber housing (13) is 2~7 °.
4. the little oil mass igniting pulverized coal burner of horizontal bias type according to claim 3 is characterized in that the angle (b) between the horizontal plane of main oil gun chamber (3) and burner secondary chamber housing (13) is 45~63 °.
5. the little oil mass igniting pulverized coal burner of horizontal bias type according to claim 4 is characterized in that the angle (c) between the horizontal plane of auxiliary oil gun sleeve pipe (4) and burner secondary chamber housing (13) is 45~63 °.
6. the little oil mass igniting pulverized coal burner of horizontal bias type according to claim 5 is characterized in that the width (L1) of the surrounding air passage (15) between the spout (7) in outer spout (8) of burner and the burner is 0~30mm.
7. the little oil mass igniting pulverized coal burner of horizontal bias type according to claim 6 is characterized in that air film wind introducing port (6) distance (L2) of spout (7) outer to the burner is 0~450mm.
8. the little oil mass igniting pulverized coal burner of horizontal bias type according to claim 7 is characterized in that the distance (L3) that is exported to spout (7) outer in the burner of a chamber of burner (11) is 0~1000mm.
CNU2007201169332U 2007-09-06 2007-09-06 Horizontal shade type micro oil mass igniting powdered coal burner CN201093488Y (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101561138B (en) * 2009-05-27 2010-12-08 哈尔滨工业大学 Secondary concentration double-nozzle micro-oil pulverized coal igniting device
CN102226520A (en) * 2011-04-25 2011-10-26 哈尔滨工业大学 Combustion device and method for directly igniting vertical shade pulverized coal airflow
CN101672474B (en) * 2009-06-09 2012-01-25 徐州燃控科技股份有限公司 Horizontal bias internal-combustion igniter and main pulverized coal burner
CN101603683B (en) * 2009-07-03 2012-05-09 范昌 Inferior coal micro-oil ignition combustor
CN103946634A (en) * 2011-11-16 2014-07-23 三菱重工业株式会社 Oil-fired burner, solid fuel-fired burner unit and solid fuel-fired boiler
CN104266225A (en) * 2014-09-15 2015-01-07 山东英电节能科技有限公司 Cold-state ignition and low-load steady combustion tiny-oil ignition system for power plant pulverized coal boiler
CN104421932A (en) * 2013-09-05 2015-03-18 辽宁龙电伟业新能科技有限公司 Oil-saving ignition pulverized coal burner and oil-saving ignition system comprising same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101561138B (en) * 2009-05-27 2010-12-08 哈尔滨工业大学 Secondary concentration double-nozzle micro-oil pulverized coal igniting device
CN101672474B (en) * 2009-06-09 2012-01-25 徐州燃控科技股份有限公司 Horizontal bias internal-combustion igniter and main pulverized coal burner
CN101603683B (en) * 2009-07-03 2012-05-09 范昌 Inferior coal micro-oil ignition combustor
CN102226520A (en) * 2011-04-25 2011-10-26 哈尔滨工业大学 Combustion device and method for directly igniting vertical shade pulverized coal airflow
CN102226520B (en) * 2011-04-25 2013-04-10 哈尔滨工业大学 Combustion device and method for directly igniting vertical shade pulverized coal airflow
CN103946634A (en) * 2011-11-16 2014-07-23 三菱重工业株式会社 Oil-fired burner, solid fuel-fired burner unit and solid fuel-fired boiler
CN103946634B (en) * 2011-11-16 2016-03-23 三菱重工业株式会社 Oil burner, solid fuel burner unit and solid fuel burning boiler
US9702545B2 (en) 2011-11-16 2017-07-11 Mitsubishi Heavy Industries, Ltd. Oil-fired burner, solid fuel-fired burner unit, and solid fuel-fired boiler
CN104421932A (en) * 2013-09-05 2015-03-18 辽宁龙电伟业新能科技有限公司 Oil-saving ignition pulverized coal burner and oil-saving ignition system comprising same
CN104421932B (en) * 2013-09-05 2019-04-23 辽宁龙电伟业新能科技有限公司 Fuel saving lighting coal powder combustor and its fuel-economizing ignition system
CN104266225A (en) * 2014-09-15 2015-01-07 山东英电节能科技有限公司 Cold-state ignition and low-load steady combustion tiny-oil ignition system for power plant pulverized coal boiler
CN104266225B (en) * 2014-09-15 2016-12-07 山东英电环保科技有限公司 Generating plant pulverized coal boiler cold state spark and the micro oil ignition system of low-load combustion-stabilizing

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080730

Termination date: 20100906