CN105698173A - Low-NOx unsymmetrical combustor with Venturi tube - Google Patents
Low-NOx unsymmetrical combustor with Venturi tube Download PDFInfo
- Publication number
- CN105698173A CN105698173A CN201610161671.5A CN201610161671A CN105698173A CN 105698173 A CN105698173 A CN 105698173A CN 201610161671 A CN201610161671 A CN 201610161671A CN 105698173 A CN105698173 A CN 105698173A
- Authority
- CN
- China
- Prior art keywords
- venturi tube
- burner
- wall
- fuel
- low nox
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims abstract description 45
- 238000002485 combustion reaction Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 230000006641 stabilisation Effects 0.000 claims description 20
- 238000011105 stabilization Methods 0.000 claims description 20
- 238000010030 laminating Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 abstract 3
- 238000009826 distribution Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/70—Baffles or like flow-disturbing devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
Abstract
The invention relates to a low-NOx unsymmetrical combustor with a Venturi tube. The low-NOx unsymmetrical combustor comprises a fuel discharging assembly, an air pipeline, a combustor wall, an igniter and the Venturi tube. The fuel discharging assembly comprises a discharging tip end, a fuel lifting pipe and a flame stabilizing structure. An air channel surrounding the combustor wall penetrates the combustor wall and extends. The flame stabilizing structure is arranged on the first inner side of one side of the axis of the combustor wall. The flame stabilizing structure is arranged on a discharging opening of the combustor wall. The Venturi tube is arranged on the second inner side of the other side of the axis of the combustor wall. A vacuum air suction pipe of the Venturi tube extends outside the outlet end of the combustor wall. A guide vane is arranged in the air pipeline. One end of the guide vane extends to the front edge of the Venturi tube. By the adoption of the low-NOx unsymmetrical combustor with the Venturi tube, the problems that too much NOx is generated and combustion is insufficient due to the fact that the temperature in an existing combustor heat supply hearth is too high are solved.
Description
Technical field
The present invention relates to technical field of burner, particularly relate to a kind of low NOx asymmetric burner with Venturi tube。
Background technology
Burner be industrial furnace combustion apparatus mainly comprise parts; the NOx that its burning produces is one of principal element causing environmental pollution; along with the pay attention to day by day of Environmental protection, the height of NOx generation amount has become one of important indicator of measurement burner combustion performance。Different with burning condition according to fuel, the NOx generated in combustion is broadly divided into three kinds, i.e. fuel type NOx, thermal NO x and Quick-type NOx。The NOx generated in gas fuel combustion process is mainly fuel type NOx and thermal NO x, therefore, controls NOx for burn gas fuel and generates the NOx reduction generating or having generated mainly controlling thermal NO x and fuel type NOx。The generation of thermal NO x is had decisive role by temperature, different burners produces different calorific intensity distributions in combustor, different calorific intensity distributions produces different Temperature Distribution, therefore design a novel burner to make it can meet the needs of fuel fire and burning to reduce again the generation of NOx and become the key realizing low NOx drainage, the generation that eccentric asymmetrical burner reduces NOx is insufficient but there is fuel combustion, uneven problem of burning。
Summary of the invention
An object of the present invention is for the deficiencies in the prior art part, overcome the too high generation causing more NOx of temperature in existing burner heat supply burner hearth, and it is insufficient to burn, uneven problem, there is provided one that fuel combustion can be made abundant, combustion even, can control again temperature and reduce the NOx burner generated。
A kind of low NOx asymmetric burner with Venturi tube, discharges assembly, air line, burner wall, lighter, Venturi tube including fuel, and described fuel is discharged assembly and included discharging tip, fuel riser, flame stabilization structure；The air flue that described burner wall surrounds extends through burner wall；Described flame stabilization structure is arranged on inside the first of the side burner wall of the axis of burner wall；Described flame stabilization structure is arranged on the floss hole place of burner wall；Described Venturi tube is arranged on inside the opposite side second of axis；The vacuum suction pipe of described Venturi tube extends to beyond the port of export of burner wall；Being additionally provided with stator in described air line, stator one end extends to the leading edge of Venturi tube。
Preferred as one, described fuel riser longitudinally cuts across air flue, and one end extends to discharge tip。
Preferred as one, the most advanced and sophisticated outlet 15 millimeters-20 millimeters preferably more than burner wall of described discharge。
Preferred as one, described fuel is discharged tip and is discharged tip for gaseous fuel discharge tip or liquid fuel, it is desirable that most advanced and sophisticated for gaseous fuel discharge。
Preferred as one, described fuel is discharged tip and is discharged most advanced and sophisticated or smooth flame discharge tip for circular flame, it is preferred that circular flame is discharged most advanced and sophisticated。
Preferred as one, described flame stabilization structure is provided with the stable cone of multiple passage, annular equally distributed passage can allow air even into。
Preferred as one, described flame stabilization structure has leading edge, and leading edge contacts with the medial wall of burner wall。
Preferred as one, the diameter of described air flue is D, and the diameter of the outlet of described flame stabilization structure is d, 40%D < d < 50%D, and this ratio is the optimization numerical value drawn in practice。
Preferred as one, described lighter is arranged on inside the second of burner wall。
Preferred as one, described burner wall is firebrick wall structure。
Preferred as one, the laminating of described Venturi tube is fixed on the medial wall of burner wall。
Preferred as another, the upstream of described stator is provided with baffle plate, for controlling the flow of the combustion air of entirety。
Beneficial effects of the present invention:
(1) the invention provides a kind of low NOx asymmetric burner with Venturi tube, eccentric asymmetrical setting overcomes the problem of the too high generation causing more NOx of temperature in existing burner heat supply burner hearth, effectively can control temperature thus reducing the generation of NOx。
(2) the invention provides a kind of low NOx asymmetric burner with Venturi tube, the setting of Venturi tube makes the effect of burner eccentric setting become apparent from, and fully mixing gas is shifted burning in time so that sufficient combustion and combustion distribution are uniform。
(3) the invention provides a kind of low NOx asymmetric burner with Venturi tube, the setting of stator make input Venturi tube air velocity faster, promoted the working effect of Venturi tube thus promoted eccentric burner reduce NOx generate effect。
Accompanying drawing explanation
Technical scheme for the clearer explanation embodiment of the present invention, below the accompanying drawing used required during embodiment is described is briefly described, apparently, drawings discussed below is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawings according to these accompanying drawings。
Fig. 1 is the structure sectional view of a kind of low NOx asymmetric burner with Venturi tube。
Fig. 2 is the structure top view of a kind of low NOx asymmetric burner with Venturi tube。
Fig. 3 is the structural representation that a kind of low NOx asymmetric burner fuel with Venturi tube discharges assembly。
Fig. 4 is the venturi tube structure schematic diagram of a kind of low NOx asymmetric burner with Venturi tube。
Label declaration:
1. fuel discharges assembly, 2. air line, 3. burner wall, 4. lighter, 5. Venturi tube, 6. air flue, 7. stator, 8. baffle plate, 9.C region, 10.D region, 11. discharge tip, 12. fuel riser, 13. flame stabilization structures, 21. inwall, 31. medial walls, 32. ports of export, 33. axis, inside 34. first, inside 35. second, 51. vacuum suction pipe, 52.a district, 53. air vent, 54. leading edges, 61. air flue a, 62. air flue b, 511. ozzles, 71. ends, 131. passage, 132. leading edges, 133. outlets。
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical scheme in the embodiment of the present invention is illustrated clearly and completely。
Embodiment one
Fig. 1 is a kind of be a kind of with the low NOx asymmetric burner structure sectional view schematic diagram of Venturi tube, Fig. 2 is that a kind of low NOx asymmetric burner fuel with Venturi tube discharges the structural representation of assembly, Fig. 4 is the venturi tube structure schematic diagram of a kind of low NOx asymmetric burner with Venturi tube with the structure top view of low NOx asymmetric burner of Venturi tube, Fig. 3。As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of low NOx asymmetric burner with Venturi tube includes fuel and discharges assembly 1, air line 2, burner wall 3, lighter 4, Venturi tube 5, and described fuel is discharged assembly 1 and included discharging tip 11, fuel riser 12, flame stabilization structure 13；The air flue 6 that described burner wall 3 surrounds extends through burner wall 3；Described flame stabilization structure 13 is arranged on inside the first of the side burner wall 3 of the axis 33 of burner wall 3 34；Described flame stabilization structure 13 is arranged on the port of export 32 place of burner wall 3；Described Venturi tube 5 is arranged on inside the opposite side second of axis 33 35；The vacuum suction pipe 51 of described Venturi tube 5 extends to beyond the port of export 32 of burner wall 3；Being additionally provided with stator 7 in described air line 2, stator 7 one end extends to the leading edge 54 of Venturi tube 5；Described fuel riser 12 longitudinally cuts across air flue 6, and one end extends to discharge most advanced and sophisticated 11；Described discharge most advanced and sophisticated 11 is less than the port of export 32 (15-25) millimeter of burner wall 3, it is preferable that value is 20 millimeters；Described fuel is discharged most advanced and sophisticated 11 and is discharged tip for gaseous fuel；Described fuel is discharged most advanced and sophisticated 11 and is discharged tip for circular flame；Described flame stabilization structure 13 is provided with the stable cone of multiple passage 131, annular equally distributed passage 131 can allow air even into；Described flame stabilization structure 13 has leading edge 132, and leading edge 132 contacts with the medial wall 31 of burner wall 3；The diameter of described air flue 6 is D, and the diameter of the outlet 133 of described flame stabilization structure 13 is d, 40%D < d < 50%D, and this ratio is the optimization numerical value that practice draws；Described lighter 4 is arranged on inside the second of burner wall 3 35；Described burner wall 3 is firebrick wall structure；The laminating of described Venturi tube 5 is fixed on the medial wall 31 of burner wall 3；The upstream of described stator 7 is provided with baffle plate 8, for controlling the flow of the combustion air of entirety。
During work, combustion air is in the entrance air line 2 that baffle plate 8 is appropriate, air flue 6 is divided into air flue a61 and air flue b62 by stator 7, the air flowing of air flue b62 is shallower, air flow through air flue b62 enter burner wall 3 first inside 34, then discharge through the passage 131 of flame stabilization structure 13 and discharge, with fuel, the fuel mixed combustion discharged in most advanced and sophisticated 11, the amount expecting relative fuel of air is few herein, enriched combustion region is formed in C region 9, the temperature of fuel is relatively low, unnecessary fuel mixes reduce temperature with burning inert products；The inwall 21 that the air of air flue a61 is increasingly closer to air line 2 because of stator 7 at end 71 makes flow velocity accelerate, air enters Venturi tube 5, vacuum is formed in a district 52 of Venturi tube 5, vacuum suction pipe 51 is extended to C region 9 by a district 52, in low-pressure state in whole vacuum suction pipe 51, the fuel in C region and burning inert products mixing gas are drawn in Venturi tube 5 by vacuum suction pipe 51 and are mixed to form the air vent 53 of new mixing gas flow through venturi 5 with the air entered discharge and burn in D region 10, owing to the few ignition temperature of fuel ratio will not be high。
The above; being only the present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention。Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims。
Claims (10)
1. the low NOx asymmetric burner with Venturi tube, discharging assembly (1), air line (2), burner wall (3), lighter (4), Venturi tube (5) including fuel, described fuel is discharged assembly (1) and is included discharging termination (11), fuel riser (12), flame stabilization structure (13)；It is characterized in that: the air flue (6) that described burner wall (3) surrounds extends through burner wall (3)；Described flame stabilization structure (13) is arranged on inside the first of the side of the axis (33) of burner wall (3) (34)；Described flame stabilization structure (13) is arranged on the port of export (32) place of burner wall (3)；Described Venturi tube (5) is arranged on inside the opposite side second of axis (33) (35)；The vacuum suction pipe (51) of described Venturi tube (5) extends to beyond the port of export (32) of burner wall (3)；Described air line (2) is additionally provided with stator (7), and stator (7) one end extends to the leading edge (54) of Venturi tube (5)。
2. a kind of low NOx asymmetric burner with Venturi tube as claimed in claim 1, it is characterised in that described fuel riser (12) longitudinally cuts across air flue (6), one end extends to discharge termination (11)。
3. a kind of low NOx asymmetric burner with Venturi tube as claimed in claim 1, it is characterised in that described discharge termination (11) is less than the port of export (32) 15 millimeters-25 millimeters of burner wall (3)。
4. a kind of low NOx asymmetric burner with Venturi tube as claimed in claim 1, it is characterised in that described fuel discharging end head (11) is that tip discharged by gaseous fuel。
5. a kind of low NOx asymmetric burner with Venturi tube as claimed in claim 1, it is characterised in that described flame stabilization structure (13) is provided with the stable cone of multiple passage (131)。
6. a kind of low NOx asymmetric burner with Venturi tube as claimed in claim 1, it is characterized in that, described flame stabilization structure (13) has leading edge (132), and leading edge (132) contacts with the medial wall (31) of burner wall (3)。
7. a kind of low NOx asymmetric burner with Venturi tube as claimed in claim 1, it is characterized in that, the diameter of described air flue (5) is D, the diameter of the outlet (133) of described flame stabilization structure (13) is d, 40%D < d < 50%D。
8. a kind of low NOx asymmetric burner with Venturi tube as claimed in claim 1, it is characterised in that described lighter (4) is arranged on inside the second of burner wall (3) (35)。
9. a kind of low NOx asymmetric burner with Venturi tube as claimed in claim 1, it is characterised in that described Venturi tube (5) laminating is fixed on the medial wall (31) of burner wall (3)。
10. a kind of low NOx asymmetric burner with Venturi tube as claimed in claim 1, it is characterised in that the upstream of described stator (7) is provided with baffle plate (8), for controlling the flow of the combustion air of entirety。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610161671.5A CN105698173B (en) | 2016-03-21 | 2016-03-21 | A kind of low NOx asymmetrics burner with Venturi tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610161671.5A CN105698173B (en) | 2016-03-21 | 2016-03-21 | A kind of low NOx asymmetrics burner with Venturi tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105698173A true CN105698173A (en) | 2016-06-22 |
| CN105698173B CN105698173B (en) | 2017-12-01 |
Family
ID=56232232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610161671.5A Expired - Fee Related CN105698173B (en) | 2016-03-21 | 2016-03-21 | A kind of low NOx asymmetrics burner with Venturi tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105698173B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001005510A (en) * | 1999-06-25 | 2001-01-12 | Kawasaki Heavy Ind Ltd | Method for controlling robot and its control device |
| CN202303391U (en) * | 2011-10-20 | 2012-07-04 | 广州赛麦机械设备有限公司 | Fuel gas regulator |
| CN203375450U (en) * | 2013-06-08 | 2014-01-01 | 中国联合工程公司 | Smoke backflow type high-heating-value gas heat storage burner |
| CN205560740U (en) * | 2016-03-21 | 2016-09-07 | 长兴金诺机械有限公司 | Low NOx asymmetric combustor with venturi |
-
2016
- 2016-03-21 CN CN201610161671.5A patent/CN105698173B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001005510A (en) * | 1999-06-25 | 2001-01-12 | Kawasaki Heavy Ind Ltd | Method for controlling robot and its control device |
| CN202303391U (en) * | 2011-10-20 | 2012-07-04 | 广州赛麦机械设备有限公司 | Fuel gas regulator |
| CN203375450U (en) * | 2013-06-08 | 2014-01-01 | 中国联合工程公司 | Smoke backflow type high-heating-value gas heat storage burner |
| CN205560740U (en) * | 2016-03-21 | 2016-09-07 | 长兴金诺机械有限公司 | Low NOx asymmetric combustor with venturi |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105698173B (en) | 2017-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104964282A (en) | Double-preheating environmental protection combustor for tube heating furnace and applications thereof | |
| CN104990078B (en) | A kind of burner that can quickly realize flameless combustion | |
| CN102721059A (en) | Low-heating-value gas burner and burning technology | |
| EP3152490B1 (en) | Non-symmetrical low nox burner apparatus and method | |
| WO2020140382A1 (en) | Flow-equalization-type fire piece | |
| CN103307600A (en) | Heat accumulative gas burner | |
| CN204786396U (en) | A self preheat formula naked light nozzle for oxygen boosting burning | |
| CN205560739U (en) | Curved form asymmetric combustor with venturi | |
| CN204534584U (en) | The two preheating environmental protection burner of a kind of tubular heater | |
| ITPD20080381A1 (en) | GAS BURNER WITH PRE-MIXING | |
| CN112032712A (en) | A energy-concerving and environment-protective spray gun of natural gas for industry | |
| CN205560740U (en) | Low NOx asymmetric combustor with venturi | |
| CN105698173A (en) | Low-NOx unsymmetrical combustor with Venturi tube | |
| CN203384976U (en) | Heat storage type gas burner | |
| CN205560733U (en) | Low NOx asymmetric combustor | |
| CN105674269A (en) | Bent asymmetrical burner with Venturi tube | |
| US20230022074A1 (en) | Pulverized coal boiler with bottom combustor, and control method therefor | |
| CN210291872U (en) | A energy-concerving and environment-protective spray gun of natural gas for industry | |
| CN105698171A (en) | Low-NOx asymmetric type burner | |
| CN205556564U (en) | Living beings retort of curved form asymmetric combustor of application | |
| CN217382929U (en) | Bridging micropore flat-plate burner | |
| CN205556563U (en) | Flue gas recycle hangs down NOx living beings retort | |
| CN205576021U (en) | Living beings retort of application asymmetric combustor | |
| CN205328948U (en) | Structure of arranging of ethylene cracking furnace combustor | |
| KR20200066469A (en) | Combined flame type Low pollution burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Weijie Inventor before: Ye Yufang Inventor before: Ye Huajian |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160620 Address after: 313113 Zhejiang city of Huzhou province Changxing County two primary Ling Kang Village Applicant after: CHANGXING JINNUO MACHINERY Co.,Ltd. Address before: 313100, Zhejiang, Huzhou Changxing County forest town industrial concentration area Applicant before: ZHEJIANG SHANGDING INDUSTRIAL FURNACE Co.,Ltd. |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181106 Address after: 257000 49-19 Dongying Economic Zone, Dongying, Shandong Patentee after: DONGYING XIANDA ENERGY TECHNOLOGY Co.,Ltd. Address before: 313113 Chu Kang village, two boundary Ling Township, Changxing County, Huzhou, Zhejiang Patentee before: CHANGXING JINNUO MACHINERY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 |