CN108613177B - Oil burner with shower nozzle cooling device - Google Patents
Oil burner with shower nozzle cooling device Download PDFInfo
- Publication number
- CN108613177B CN108613177B CN201810513513.0A CN201810513513A CN108613177B CN 108613177 B CN108613177 B CN 108613177B CN 201810513513 A CN201810513513 A CN 201810513513A CN 108613177 B CN108613177 B CN 108613177B
- Authority
- CN
- China
- Prior art keywords
- spray head
- cover
- fixed sleeve
- combustion
- fins
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001816 cooling Methods 0.000 title claims abstract description 36
- 239000007921 spray Substances 0.000 claims abstract description 25
- 230000017525 heat dissipation Effects 0.000 claims description 36
- 230000007704 transition Effects 0.000 claims description 17
- 238000002485 combustion reaction Methods 0.000 claims description 15
- 239000003245 coal Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 12
- 239000000295 fuel oil Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
Abstract
The invention relates to the technical field of fuel systems of generator sets, in particular to an oil burner with a spray head cooling device. According to the invention, the radiating long holes and the fins are uniformly distributed in the circumferential direction of the outer wall of the fixed sleeve, one end of the radiating orifice is in transitional connection with the outer circle of the fixed sleeve by the transitional chamfer, the shrinkage opening is connected with the fins, and the flaring opening is in transitional connection with the shrinkage opening, so that combustion-supporting wind energy is compressed from the flaring opening to the shrinkage opening and is turned to blow into the radiating orifice through the transitional chamfer to directly cool the spray head, and meanwhile, the spray head can conduct heat into the combustion-supporting wind through the fins, thereby effectively improving cooling efficiency. The invention is mainly used for cooling the spray head of the oil burner.
Description
Technical Field
The invention relates to the technical field of fuel systems of generator sets, in particular to an oil burner with a spray head cooling device.
Background
The starting and low-load stable combustion of the boiler for the generator set of the power plant is completed by igniting fuel oil by an igniter after the fuel oil is sprayed by a spray nozzle, and then igniting the pulverized coal in a pulverized coal air pipe. Simultaneously, combustion air is blown into the combustion-supporting air pipe to maintain the combustion and cool the spray head. However, the cooling effect of the existing spray head is poor, the temperature of the spray head is too high, fuel oil at the spray nozzle of the spray head is burnt and stuck on the spray head, so that ignition failure is caused, a large amount of fuel oil is wasted, and the economic loss is large.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the oil burner with the spray head cooling device, which has a simple structure and a good cooling effect.
The technical scheme of the invention is as follows:
an oil burner with a nozzle cooling device comprises a nozzle cooling fixed cover 1, a nozzle 2, an oil pipe 3, a fire detector 4, an igniter 5, a burner housing 6, a combustion-supporting air pipe 7 and a stable combustion cover 8; the burner housing 6 is obliquely arranged on the pipe wall of the pulverized coal air pipe 9 in a penetrating way, a combustion stabilizing cover 8 is arranged in an inner hole at the lower part of the burner housing 6, the nozzle cooling fixed cover 1, the fire detector 4 and the igniter 5 are mutually arranged in parallel in an inner hole at the upper part of the burner housing 6 and are in sealing connection with the upper end of the burner housing 6 through flanges, the nozzle 2 is arranged in an inner hole at the lower part of the nozzle cooling fixed cover 1, the oil pipe 3 is arranged in an inner hole of the nozzle cooling fixed cover 1 and is communicated with the nozzle 2, and the combustion supporting air pipe 7 is arranged on the pipe wall of the burner housing 6 and is communicated with the interior of the burner housing 6; the spray head cooling fixed cover 1 comprises a radiating long hole 11, fins 12, a wind shielding pressurizing cover 13 and a fixed sleeve 14; the heat dissipation long holes 11 are uniformly distributed in the circumferential direction of the outer wall of the fixed sleeve 14, the fins 12 are arranged between two adjacent heat dissipation long holes 11 and are uniformly distributed in the circumferential direction of the outer wall of the fixed sleeve 14, and the wind shielding pressurization cover 13 is sleeved outside the fixed sleeve 14 and is connected with one end of the fins 12; the long heat dissipation hole 11 includes a heat dissipation orifice 111 and a transition chamfer 112; the heat dissipation hole 111 is communicated with the inner hole of the fixed sleeve 14, and the transition chamfer 112 is used for connecting one end of the heat dissipation hole 111 with the outer circle of the fixed sleeve 14 in a transition manner; the wind shielding pressurization cover 13 comprises a shrinkage opening 131 and a flaring 132; the necking 131 is connected with the fin 12, and the flaring 132 is in transitional connection with the necking 131.
Further, the fin 12 has an arc shape.
Further, the ratio of the outer diameter dimension of the flaring 132 to the reduction 131 is 4:1-3:1.
Further, the included angle between the transition chamfer 112 and the axis of the fixed sleeve 14 is 2 ° to 4 °.
The invention has the beneficial effects that:
through evenly distributed in fixed sleeve outer wall circumferencial direction heat dissipation slot hole and fin, transition chamfer will dispel the heat drill way one end and fixed sleeve excircle transitional coupling, throat and fin connection, flaring and throat transitional coupling for combustion-supporting wind energy is through the compression of flaring to throat and diversion and blow in heat drill way through transition chamfer, directly cools off the shower nozzle, and the shower nozzle can be conducted the heat through the fin in the combustion-supporting wind simultaneously, has improved cooling efficiency effectively.
The fins are arranged in the arc shape, so that the fins can have larger heat dissipation area in a limited space, meanwhile, the arc-shaped fins can disturb combustion-supporting air, and the heat dissipation capacity is effectively improved.
The ratio of the outer diameters of the flaring and the necking is set to be 4:1-3:1, so that the wind pressure and the flow of combustion-supporting wind flowing from the flaring to the necking can be greatly improved, and the heat dissipation rate of the heat dissipation orifice is effectively improved.
Through setting the included angle between the transition chamfer and the axis of the fixed sleeve to be 2-4 degrees, the combustion-supporting wind pressurized by the wind shielding pressurization cover can smoothly blow into the heat dissipation orifice without generating negative pressure, and the heat dissipation rate of the heat dissipation orifice is further effectively improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a partial view A of the present invention;
FIG. 3 is an axial view of a showerhead cooling mounting cup of the present invention;
FIG. 4 is a partial cross-sectional view of a showerhead cooling retention housing according to the present invention;
FIG. 5 is a partial view B of the present invention;
in the figure: the burner comprises a nozzle cooling fixed cover 1, a nozzle 2, an oil pipe 3, a fire detector 4, an igniter 5, a burner housing 6, a combustion-supporting air pipe 7, a stable combustion cover 8, a pulverized coal air pipe 9, a heat dissipation long hole 11, fins 12, a wind shielding pressurizing cover 13, a fixed sleeve 14, a heat dissipation orifice 111, a transition chamfer 112, a shrinkage 131 and a flaring 132.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, the oil burner with the nozzle cooling device according to a preferred embodiment of the present invention comprises a nozzle cooling fixed cover 1, a nozzle 2, an oil pipe 3, a fire detector 4, an igniter 5, a burner housing 6, a combustion supporting air pipe 7 and a stable combustion cover 8; the burner housing 6 is obliquely arranged on the pipe wall of the pulverized coal air pipe 9 in a penetrating way, a combustion stabilizing cover 8 is arranged in an inner hole at the lower part of the burner housing 6, the nozzle cooling fixed cover 1, the fire detector 4 and the igniter 5 are mutually arranged in parallel in the inner hole at the upper part of the burner housing 6 and are in sealing connection with the upper end of the burner housing 6 through a flange, the nozzle 2 is arranged in the inner hole at the lower part of the nozzle cooling fixed cover 1, the oil pipe 3 is arranged in the inner hole of the nozzle cooling fixed cover 1 and is communicated with the nozzle 2, and the combustion supporting air pipe 7 is arranged on the pipe wall of the burner housing 6 and is communicated with the interior of the burner housing 6; the spray head cooling fixed cover 1 comprises a heat dissipation long hole 11, fins 12, a wind shielding pressurizing cover 13 and a fixed sleeve 14; the heat dissipation long holes 11 are uniformly distributed in the circumferential direction of the outer wall of the fixed sleeve 14, the fins 12 are in an arc shape, the fins 12 are arranged between two adjacent heat dissipation long holes 11 and are uniformly distributed in the circumferential direction of the outer wall of the fixed sleeve 14, and the wind shielding pressurizing cover 13 is sleeved outside the fixed sleeve 14 and is connected with one end of the fins 12; the long heat dissipation hole 11 includes a heat dissipation orifice 111 and a transition chamfer 112; the heat dissipation orifice 111 is communicated with the inner hole of the fixed sleeve 14, one end of the heat dissipation orifice 111 is in transitional connection with the outer circle of the fixed sleeve 14 by the transitional chamfer 112, and the included angle between the transitional chamfer 112 and the axis of the fixed sleeve 14 is 3 degrees; the wind-blocking pressurization cover 13 includes a shrinkage port 131 and a flaring 132; the necking 131 is connected with the fins 12, the flaring 132 is in transitional connection with the necking 131, and the outer diameter dimension ratio of the flaring 132 to the necking 131 is 4:1.
The working principle is as follows:
the combustion-supporting air enters the combustor housing through the combustion-supporting air pipe, the oil pipe sprays oil into the combustor housing through the spray head, the fuel oil and the combustion-supporting air are ignited through the igniter after being mixed, the flame is stably combusted in the combustion-stabilizing housing, and the flame combustion state is detected by the flame detection. The pulverized coal is then blown into the pulverized coal air duct 9, and the pulverized coal is ignited by the flame. Meanwhile, when the combustion-supporting air flows through the nozzle cooling fixed cover, the combustion-supporting air is compressed by the wind shielding pressurizing cover and turns to blow into the heat dissipation hole through the transition chamfer, and the nozzle is directly cooled. And the spray head conducts heat to combustion-supporting air through the fins.
The invention has the beneficial effects that:
through evenly distributed in fixed sleeve outer wall circumferencial direction heat dissipation slot hole and fin, transition chamfer will dispel the heat drill way one end and fixed sleeve excircle transitional coupling, throat and fin connection, flaring and throat transitional coupling for combustion-supporting wind energy is through the compression of flaring to throat and diversion and blow in heat drill way through transition chamfer, directly cools off the shower nozzle, and the shower nozzle can be conducted the heat through the fin in the combustion-supporting wind simultaneously, has improved cooling efficiency effectively.
The fins are arranged in the arc shape, so that the fins can have larger heat dissipation area in a limited space, meanwhile, the arc-shaped fins can disturb combustion-supporting air, and the heat dissipation capacity is effectively improved.
The ratio of the outer diameters of the flaring and the necking is set to be 4:1-3:1, so that the wind pressure and the flow of combustion-supporting wind flowing from the flaring to the necking can be greatly improved, and the heat dissipation rate of the heat dissipation orifice is effectively improved.
Through setting the included angle between the transition chamfer and the axis of the fixed sleeve to be 2-4 degrees, the combustion-supporting wind pressurized by the wind shielding pressurization cover can smoothly blow into the heat dissipation orifice without generating negative pressure, and the heat dissipation rate of the heat dissipation orifice is further effectively improved.
The above is only a preferred embodiment of the present invention, and it should be noted that it should be understood by those skilled in the art that several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (4)
1. An oil burner with a spray head cooling device, characterized in that: comprises a spray head cooling fixed cover (1), a spray head (2), an oil pipe (3), a fire detector (4), an igniter (5), a burner housing (6), a combustion-supporting air pipe (7) and a stable combustion cover (8); the burner housing (6) is obliquely arranged on the pipe wall of the pulverized coal air pipe (9) in a penetrating manner, a combustion stabilizing cover (8) is arranged in an inner hole at the lower part of the burner housing (6), the nozzle cooling fixing cover (1), the fire detector (4) and the igniter (5) are mutually arranged in the inner hole at the upper part of the burner housing (6) in parallel and are in sealing connection with the upper end of the burner housing (6) through flanges, the nozzle (2) is arranged in the inner hole at the lower part of the nozzle cooling fixing cover (1), the oil pipe (3) is arranged in the inner hole of the nozzle cooling fixing cover (1) and is communicated with the nozzle (2), and the combustion supporting air pipe (7) is arranged on the pipe wall of the burner housing (6) and is communicated with the inside of the burner housing (6); the spray head cooling fixed cover (1) comprises a radiating long hole (11), fins (12), a wind shielding pressurizing cover (13) and a fixed sleeve (14); the heat dissipation long holes (11) are uniformly distributed in the circumferential direction of the outer wall of the fixed sleeve (14), the fins (12) are arranged between two adjacent heat dissipation long holes (11) and are uniformly distributed in the circumferential direction of the outer wall of the fixed sleeve (14), and the wind shielding pressurization cover (13) is sleeved outside the fixed sleeve (14) and is connected with one end of each fin (12); the long radiating hole (11) comprises a radiating hole opening (111) and a transition chamfer (112); the heat dissipation hole (111) is communicated with an inner hole of the fixed sleeve (14), and the transition chamfer (112) is used for connecting one end of the heat dissipation hole (111) with the outer circle of the fixed sleeve (14) in a transition manner; the wind shielding pressurization cover (13) comprises a necking (131) and a flaring (132); the necking (131) is connected with the fins (12), and the flaring (132) is in transitional connection with the necking (131).
2. An oil burner with a spray head cooling device as claimed in claim 1, wherein: the fins (12) are arc-shaped.
3. An oil burner with a spray head cooling device as claimed in claim 2, wherein: the outer diameter dimension ratio of the flaring (132) to the necking (131) is 4:1-3:1.
4. An oil burner with a spray head cooling device as claimed in claim 3, wherein: the included angle between the transition chamfer (112) and the axis of the fixed sleeve (14) is 2-4 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810513513.0A CN108613177B (en) | 2018-05-24 | 2018-05-24 | Oil burner with shower nozzle cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810513513.0A CN108613177B (en) | 2018-05-24 | 2018-05-24 | Oil burner with shower nozzle cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108613177A CN108613177A (en) | 2018-10-02 |
| CN108613177B true CN108613177B (en) | 2023-11-28 |
Family
ID=63664096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810513513.0A Active CN108613177B (en) | 2018-05-24 | 2018-05-24 | Oil burner with shower nozzle cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108613177B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5351489A (en) * | 1991-12-24 | 1994-10-04 | Kabushiki Kaisha Toshiba | Fuel jetting nozzle assembly for use in gas turbine combustor |
| JP2003247425A (en) * | 2002-02-25 | 2003-09-05 | Mitsubishi Heavy Ind Ltd | Fuel nozzle, combustion chamber, and gas turbine |
| JP2003322314A (en) * | 2002-04-30 | 2003-11-14 | Toho Gas Co Ltd | Burner |
| CN201787567U (en) * | 2010-08-09 | 2011-04-06 | 郑平安 | Direct-flow pulverized coal burner |
| JP2011117637A (en) * | 2009-12-01 | 2011-06-16 | Ihi Corp | Burner device for many kinds of fuels |
| CN202229181U (en) * | 2011-07-27 | 2012-05-23 | 北京远东四维系统工程技术有限公司 | Tiny-oil ignition and stable combustion device |
| CN202902269U (en) * | 2012-02-23 | 2013-04-24 | 向卫 | Abundant oxygen and tiny oil pulverized coal burner |
| 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 |
| CN208204995U (en) * | 2018-05-24 | 2018-12-07 | 国电江苏电力有限公司谏壁发电厂 | A kind of oil burner with spray head cooling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060191268A1 (en) * | 2005-02-25 | 2006-08-31 | General Electric Company | Method and apparatus for cooling gas turbine fuel nozzles |
-
2018
- 2018-05-24 CN CN201810513513.0A patent/CN108613177B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5351489A (en) * | 1991-12-24 | 1994-10-04 | Kabushiki Kaisha Toshiba | Fuel jetting nozzle assembly for use in gas turbine combustor |
| JP2003247425A (en) * | 2002-02-25 | 2003-09-05 | Mitsubishi Heavy Ind Ltd | Fuel nozzle, combustion chamber, and gas turbine |
| JP2003322314A (en) * | 2002-04-30 | 2003-11-14 | Toho Gas Co Ltd | Burner |
| JP2011117637A (en) * | 2009-12-01 | 2011-06-16 | Ihi Corp | Burner device for many kinds of fuels |
| CN201787567U (en) * | 2010-08-09 | 2011-04-06 | 郑平安 | Direct-flow pulverized coal burner |
| CN202229181U (en) * | 2011-07-27 | 2012-05-23 | 北京远东四维系统工程技术有限公司 | Tiny-oil ignition and stable combustion device |
| CN202902269U (en) * | 2012-02-23 | 2013-04-24 | 向卫 | Abundant oxygen and tiny oil pulverized coal burner |
| 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 |
| CN208204995U (en) * | 2018-05-24 | 2018-12-07 | 国电江苏电力有限公司谏壁发电厂 | A kind of oil burner with spray head cooling device |
Non-Patent Citations (1)
| Title |
|---|
| 一种新型锅炉油枪装置――免维护、节能、快投油枪;王永正;中国电力(第06期);第71-73页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108613177A (en) | 2018-10-02 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 6 Yuehe Street, Jianbi Street, Jingkou District, Zhenjiang City, Jiangsu Province, 212006 Applicant after: NATIONAL ENERGY Group JIANBI POWER PLANT Address before: 212000 Jianbi Power Plant of Jianbi Town, Jingkou District, Zhenjiang City, Jiangsu Province Applicant before: JIANBI POWER GENERATION PLANT OF STATE GRID JIANGSU ELECTRIC POWER CO.,LTD. |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |