CN201014444Y - Coal-seam gas combustor - Google Patents
Coal-seam gas combustor Download PDFInfo
- Publication number
- CN201014444Y CN201014444Y CNU2007201236464U CN200720123646U CN201014444Y CN 201014444 Y CN201014444 Y CN 201014444Y CN U2007201236464 U CNU2007201236464 U CN U2007201236464U CN 200720123646 U CN200720123646 U CN 200720123646U CN 201014444 Y CN201014444 Y CN 201014444Y
- Authority
- CN
- China
- Prior art keywords
- endless tube
- bed gas
- air
- coal
- loop pipe
- 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.)
- Expired - Fee Related
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Abstract
A coal-bed gas burner comprises a centre tube 1, an internal loop pipe 2, an external loop pipe 3, an air loop pipe 4, a premixed pipe section 5, a flame stabilization device 6, coal-bed entry pipes 7 and 8, an air scroll casing 9, a ring-shaped sealing clapboard 10 and so on. The utility model is characterized in that the centre tube 1, the internal loop pipe 2, the external loop pipe 3, the air loop pipe 4, the premixed pipe section 5, the flame stabilization device 6 and the air scroll casing 9 have the same central axis. The coal-bed gas goes into the premixed pipe section 5 and the flame stabilization device 6 via the small holes of the internal loop pipe 2 and the external loop pipe 3, catches fire and combusts inside the flame stabilization device 6. The utility model has the advantages of simple structure, low manufacturing coat, wild heat load regulation rate, small flow resistance, etc, and can be wildly used in the high efficient and stable combustion of the coal-bed gas.
Description
Technical field
The utility model relates to a kind of gas combustion apparatus, particularly relates to a kind of burner of low concentration coal bed gas.
Background technology
In the prior art, common gas burner designs according to natural gas, the contour concentration combustible gas theory of combustion of coal gas, though they have obtained extensive use, common gas burner does not adopt the coal bed gas of low concentration as the burning source of the gas.In addition, common gas burner in use also has the following disadvantages:
1) common gas burner mainly is suitable for natural gas, the contour concentration combustible gas of coal gas, character to combustion gas is had relatively high expectations, as Chinese patent 02132405.0 disclosed gas burner patent, the gas burner that this patent provides, fuel do not comprise the coal bed gas of low concentration.
2) Chinese patent 01124043.1 disclosed momentum-drawing fully-premixed range for another example, its adopts premixed combustion mode, and the fuel gas flow resistance is bigger, efficiency of combustion only 80%, the low heat loads combustion instability, heat load adjustment is than little, and the general family that only is fit to uses.
3) though the gas burner that has reduces to some extent through improving the back flow resistance, and combustion efficiency increases, the structure of gas burner is comparatively complicated, manufacturing cost height, complex process, and working service inconvenience.
Summary of the invention
The purpose of this utility model is to provide a kind of smooth combustion of low concentration coal bed gas, heat load adjustment of making than the coal bed gas burner wide, that efficiency of combustion is high at the deficiencies in the prior art.
The technical scheme that its technical problem that solves the utility model adopts is:
The coal bed gas burner, it is by central tube 1, interior endless tube 2, outer endless tube 3, air endless tube 4, premix pipeline section 5, steady flame device 6, coal bed gas inlet tube 7,8, air volute 9, ring packing dividing plate 10 parts such as grade constitute.It is characterized in that, central tube 1, interior endless tube 2, outer endless tube 3, air endless tube 4, premix pipeline section 5, the central axis of steady flame device 6 and air volute 9 is same axis, fixes and be connected with interior endless tube 2 and outer endless tube 3 with ring packing dividing plate 10 on the outside wall surface of central tube 1; Coal bed gas inlet tube 7 is fixedly connected on the outside wall surface of outer endless tube 3, and coal bed gas inlet tube 8 is fixedly connected on the outside wall surface of interior endless tube 2; Fixed air spiral case 9 on outer endless tube 3 outside wall surface; One end of air endless tube 4 links to each other with the port of export of air volute 9, and the other end of air endless tube 4 communicates with premix pipeline section 5; Steady flame device 6 is an increaser shape, and the small end and the premix pipeline section 5 of steady flame device 6 are fixedly linked; Interior endless tube 2 and outer endless tube 3 are the coal bed gas passage, all have the small sircle hole more than 4 on the outside wall surface of outer endless tube 3, interior endless tube 2 outlet ends at least and communicate with premix pipeline section 5; At least have the small sircle hole more than 4 on the seal diaphragm of interior endless tube 2 ports of export and communicate with steady flame device 6.Small sircle hole in utilizing on endless tube 2 and outer endless tube 3 outside wall surface produces the high-speed jet disturbance, make coal bed gas spray into premix pipeline section 5 at a high speed, and mix the back in steady flame device 6 internal combustion with combustion air that air endless tube 4 enters, in addition, the coal bed gas of remainder through the small sircle hole on interior endless tube 2 port of export seal diaphragms spray at a high speed steady flame device 6 and with form diffusion combustion after high-temperature flue gas mixes, form under the effect in high temperature gases recirculating district at steady flame device 6, the coal bed gas burner keeps smooth combustion.
The coal bed gas burner that the utility model provides is compared with other common gases burner, have flow resistance little (＜3600Pa), heat load adjustment than wide (being at least 1: 5), flameholding, efficiency of combustion height, simple and practical, power big (＞1MW), advantage such as good, the fuel wide accommodation of combustion efficiency, flow resistance be little, easy to maintenance, can satisfy the requirement of low concentration coal bed gas (the fuel gas volumetric concentration is greater than 5%) efficient stable burning.
Description of drawings
Fig. 1 is a structural representation of the present utility model.In accompanying drawing 1,1 is central tube, and 2 is interior endless tube, and 3 is outer endless tube, and 4 is the air endless tube, and 5 is the premix pipeline section, and 6 is steady flame device, and 7 is the coal bed gas inlet tube of outer endless tube 3, and 8 is the coal bed gas inlet tube of interior endless tube 2, and 9 is air volute, and 10 are the ring packing dividing plate.
The specific embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is further described:
In this programme, coal bed gas can enter outer endless tube 3 and interior endless tube 2 respectively by coal bed gas inlet tube 7 and 8, from interior endless tube 2 and outside endless tube 3 end sidewalls small sircle holes enter premix pipeline section 5, with become premixed gas after air by air volute 9 mixes in premix pipeline section 5, premixed gas enters steady flame device 6 postignitions burning, residue coal bed gas in the interior endless tube 2 enters steady flame device 6 by the small sircle hole of end seal diaphragm 10, and the high-temperature flue gas mixing after-combustion that produces with premixed combustion gas.The high-speed jet effect of endless tube 2 and outer endless tube 3 end sidewalls small sircle holes in utilizing makes coal bed gas and air fully mix the back and forms pre-mixing gas combustion; The small sircle hole high-speed jet disturbance of endless tube 2 end seal diaphragms 10 in utilizing fully mixes the high-temperature flue gas in coal bed gas and the steady flame device 6; The flame of the small sircle hole of endless tube 2 end seal diaphragms 10 makes steady flame device 6 catch fire stable as flame on duty in utilizing; Utilize steady flame device 6 restriction high-temperature flue gas flow directions, form the recirculating zone of large scale, improve the efficiency of combustion of coal bed gas.
Experiment test shows, the coal bed gas burner that the utility model provides, and its efficiency of combustion is more than 99.9%, and the heat load adjustment ratio was greater than 1: 5, and flow resistance can be widely used in the direct burning of the coal bed gas of fuel gas volumetric concentration more than 5% less than 3500Pa.
Claims (2)
1. coal bed gas burner, it is by central tube 1, interior endless tube 2, outer endless tube 3, air endless tube 4, premix pipeline section 5, steady flame device 6, coal bed gas inlet tube 7,8, air volute 9, ring packing dividing plate 10 parts such as grade constitute, and it is characterized in that, the ring packing dividing plate of interior endless tube 2 ends has the small sircle hole more than 4 at least and arranges symmetrically and evenly, and communicates with steady flame device 6; Small sircle hole and edge that the sidewall of interior endless tube 2 ends has more than 4 are at least circumferentially evenly arranged, the sidewall of outer endless tube 3 ends has the small sircle hole more than 4 at least and along circumferentially evenly arranging, the small sircle hole of interior endless tube 2 and outer endless tube 3 sidewalls is by arranging along row or stagger arrangement mode; Air endless tube 4 and premix pipeline section 5 communicate, and the small sircle hole of interior endless tube 2 and outer endless tube 3 end sidewalls communicates with premix pipeline section 5.
2. coal bed gas burner according to claim 1 is characterized in that, described steady flame device 6 is an increaser shape, and the small end and the premix pipeline section 5 of steady flame device 6 are fixedly linked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201236464U CN201014444Y (en) | 2007-02-16 | 2007-02-16 | Coal-seam gas combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201236464U CN201014444Y (en) | 2007-02-16 | 2007-02-16 | Coal-seam gas combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201014444Y true CN201014444Y (en) | 2008-01-30 |
Family
ID=39026238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201236464U Expired - Fee Related CN201014444Y (en) | 2007-02-16 | 2007-02-16 | Coal-seam gas combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201014444Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846319A (en) * | 2010-05-26 | 2010-09-29 | 清华大学 | Weak cyclone stagnation gas burner |
| CN102829477A (en) * | 2012-09-24 | 2012-12-19 | 济南同智创新科技有限公司 | Nozzle of hydrogen production reforming furnace |
| CN103822208A (en) * | 2012-11-16 | 2014-05-28 | 航天长征化学工程股份有限公司 | Burner of gasification furnace |
| CN106398777A (en) * | 2016-10-13 | 2017-02-15 | 安徽科达洁能股份有限公司 | Pulverized coal gasification combined burner |
| CN109915829A (en) * | 2019-03-20 | 2019-06-21 | 中国矿业大学 | A kind of low concentration gas pulsating combusting device with stable flame pan structure |
-
2007
- 2007-02-16 CN CNU2007201236464U patent/CN201014444Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846319A (en) * | 2010-05-26 | 2010-09-29 | 清华大学 | Weak cyclone stagnation gas burner |
| CN101846319B (en) * | 2010-05-26 | 2012-02-08 | 清华大学 | Weak cyclone stagnation gas burner |
| CN102829477A (en) * | 2012-09-24 | 2012-12-19 | 济南同智创新科技有限公司 | Nozzle of hydrogen production reforming furnace |
| CN103822208A (en) * | 2012-11-16 | 2014-05-28 | 航天长征化学工程股份有限公司 | Burner of gasification furnace |
| CN106398777A (en) * | 2016-10-13 | 2017-02-15 | 安徽科达洁能股份有限公司 | Pulverized coal gasification combined burner |
| CN109915829A (en) * | 2019-03-20 | 2019-06-21 | 中国矿业大学 | A kind of low concentration gas pulsating combusting device with stable flame pan structure |
| CN109915829B (en) * | 2019-03-20 | 2023-09-05 | 中国矿业大学 | Low-concentration gas pulsation burner with flame stabilizing disc structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 |