CN101135444A - Adjustable concentrating device suitable for few-oil ignition or plasma ignition - Google Patents
Adjustable concentrating device suitable for few-oil ignition or plasma ignition Download PDFInfo
- Publication number
- CN101135444A CN101135444A CNA2007101523317A CN200710152331A CN101135444A CN 101135444 A CN101135444 A CN 101135444A CN A2007101523317 A CNA2007101523317 A CN A2007101523317A CN 200710152331 A CN200710152331 A CN 200710152331A CN 101135444 A CN101135444 A CN 101135444A
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- Prior art keywords
- coal dust
- outer sleeve
- ignition
- guide vane
- elbow
- Prior art date
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- 238000009826 distribution Methods 0.000 claims abstract description 13
- 239000003245 coal Substances 0.000 claims abstract description 12
- 239000002817 coal dust Substances 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 4
- 239000003082 abrasive agent Substances 0.000 claims description 3
- 238000003491 array Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
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Abstract
This invention declares an adjustable concentrating device adaptable for low-oil-consumption ignition or plasma ignition includes elbow, syphon, guide vane, and outer sleeve; the syphon is positioned inside the elbow with the axis overlapping with the elbow. An outer sleeve is connected to the lower end of the elbow. Inside the outer sleeve and below the inlet of the syphon, several guide vanes are positioned which are along the elongation of the axis of the syphon and symmetrically arranged. Each guide vane has a pivot rotation axis in the center that allows these guide vanes to rotate synchronously around respective rotation center, which compose a coal powder distribution regulator with the upper part that can enlarge or close. The front end is connected to the terminal end of the combustor; the back end of the outer sleeve is connected to the coal powder pipeline. This invention can be used in the low-oil-consumption ignition or plasma ignition system, realizes the controllable distribution of coal powder.
Description
Technical field
The present invention relates to a kind of coal burner that is applicable to few-oil ignition or plasma ignition.
Background technology
The coal burner that is used for few-oil ignition system and plasma ignition system at present, the employing center is dense, light concentrated mode all around.Because few-oil ignition or plasma ignition all are internal combustion ignition principles, this just need Pulverized Coal Concentration and in case light after can not cause the burner wall to burn out, so present start-up burner is arranged in the burner center, this also makes the Pulverized Coal Concentration mode want centering dense.This improved start-up burner concentrates the firing characteristic that mode is well positioned to meet burner, in case but it is when moving as main burner, equally also can only keep dense, the light characteristic all around in center, and a lot of coal burners turbulent burner particularly, the characteristic that the coal dust distribution character is dense around all being, the center is light.Under many circumstances because above-mentioned transformation, changed the coal dust distribution character of former burner, though satisfied the requirement of igniting, owing to changed the coal powder light-dark distribution character of former burner, be unfavorable for the burning of boiler global tissue, even can reduce boiler combustion efficiency.
Summary of the invention
The purpose of this invention is to provide a kind of adjustable concentrating device that is applicable to few-oil ignition or plasma ignition, solving when the igniting, the coal dust profile adjustment is arrived dense, the light satisfied igniting distribution character state all around in center; When moving as main burner, then with the coal dust profile adjustment to around the technical problem of dense, the center is light when satisfying burner operation igniting distribution character state.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
Method of the present invention is: in the coal dust passage of burner end, by the inside and outside sleeve structure of one section dead in line is set, be formed on and be center coal dust passage in the inner sleeve, outer with inner sleeve in the outer sleeve is the structure of peripheral coal dust passage, in the coal dust passage that closes on inside and outside sleeve section outboard end, inclination angle control by to some guide vanes realizes the coal dust profile adjustment; The step of regulating is when burner is lighted a fire, and regulates some guide vanes and forms low-angle outlet, and the coal dust major part in the coal dust passage enters inner sleeve at this moment; When burner moves, regulate the outlet that some guide vanes form wide-angle, the coal dust major part in the coal dust passage enters outer sleeve.
The adjustable concentrating device of realizing the foregoing invention method comprises elbow, curved tube, guide vane and outer sleeve; Described curved tube places in the elbow, press the overlapping fixed placement of axis, the elbow lower end connects an outer sleeve, in outer sleeve, be positioned at curved tube porch below, be provided with to be positioned at and bend tube axis extended line both sides, two or several guide vanes of symmetric arrays, the fulcrum rotating shaft is established at described each guide vane middle part, some guide vanes rotate synchronously along fulcrum rotating shaft separately, but constitute the top opening that formed by some guide vanes or the coal dust profile adjustment device of reducing; In the reducing of coal dust profile adjustment device upper oral part hour, the distance between the guide vane top is slightly less than the square length of side in curved tube lower end, and when opening was maximum, the guide vane bottom is to be closed or closely adjacent approximate closed condition; Described elbow front end is not held with burner and is connected, and the outer sleeve rear end is connected with pulverized coal channel.
Aforesaid adjustable concentrating device, described elbow, curved tube, guide vane and outer sleeve are all made by high-abrasive material.
Aforesaid adjustable concentrating device, described outer sleeve main body is a square structure, the import and export end is equipped with the circumference joint.
Aforesaid adjustable concentrating device, described curved tube bottom inlet is for square, and guide vane is a sheet, by two symmetrical distributions.
Aforesaid adjustable concentrating device, described guide vane are the laminated structure of knuckle shape.
Advantage of the present invention and good effect are:
The adjustable concentrating device that is used for few-oil ignition or plasma ignition, realized coal powder density distribution adjustable function,, realized both fuel-economizings for few-oil ignition or plasma ignition system transformation, do not change the effect of former burner coal dust distribution character again, boiler integral body is not had any impact.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the cutaway view of Fig. 1 along the A-A direction.
Fig. 3 is the front view of guide vane of the present invention.
Fig. 4 is the right view of guide vane of the present invention.
Fig. 5 is the vertical view of guide vane of the present invention.
The specific embodiment
Method of the present invention is: in the coal dust passage of burner end, by the inside and outside sleeve structure of one section dead in line is set, be formed on and be center coal dust passage in the inner sleeve, outer with inner sleeve in the outer sleeve is the structure of peripheral coal dust passage, in the coal dust passage that closes on inside and outside sleeve section outboard end, inclination angle control by to some guide vanes realizes the coal dust profile adjustment; The step of regulating is when burner is lighted a fire, and regulates some guide vanes and forms low-angle outlet, and the coal dust major part in the coal dust passage enters inner sleeve at this moment; When burner moves, regulate the outlet that some guide vanes form wide-angle, the coal dust major part in the coal dust passage enters outer sleeve.
Concrete structure of the present invention is referring to Fig. 1, and it comprises curved tube 2, elbow 1, guide vane 4 and outer sleeve 3.Each parts among Fig. 1 all adopt high-abrasive material to make.Curved tube 2 main bodys are tubular, and the bottom is a square opening shape, and elbow 1 is nested with together mutually with curved tube 2, and is fixed together by axis is overlapping.The front end of elbow 1 is a ring flange, does not hold with burner and realizes being connected.Elbow 1 lower end connects an outer sleeve 3, in outer sleeve 3, be positioned at curved tube 2 porch below, be provided with and be positioned at elbow axis extended line both sides, several guide vanes 4 of symmetric arrays, fulcrum rotating shaft 5 is established at described each guide vane 4 middle part, some guide vanes 4 rotate synchronously along fulcrum rotating shafts 5 separately, but the top opening that formation is formed by some guide vanes 4 or the coal dust profile adjustment device of reducing; In the reducing of coal dust profile adjustment device upper oral part hour, the distance between guide vane 4 tops is slightly less than the square length of side in curved tube lower end, makes in the most of input 2 of coal dust, and the formation center is dense, light distribution character all around; When opening was maximum, distance was very little or close between guide vane 4 bottoms, makes coal dust all enter curved tube 2 outsides along blade, thereby the formation center is light, dense distribution character all around.
Fig. 2 has reflected the structure of outer sleeve 3 and guide vane 4, and outer sleeve 3 main bodys are square structure, is equipped with the circumference joint at entrance end (referring to Fig. 1).Guide vane is a sheet and with two 4-1, the 4-2 setting that is symmetrically distributed, the middle part of each guide vane is provided with rotating shaft 5-1,5-2.
Fig. 3 to Fig. 5 is an embodiment of guide vane 4, and the guide vane 4 among this embodiment has a bending place in the bottom.
In the embodiment that in above-mentioned figure, provides, the angle of bend of elbow 1 and curved tube 2 usually should greater than 20 ° less than 120 °, be the best with 90 °.Guide vane of the present invention 4 cooperates with curved tube 2 and elbow 1 as diversion component, can satisfy the adjustment requirement of the centralization and decentralization that coal dust is flowed in tube.On the basis of such scheme, other shapes or the setting of guide vane all are not precluded within the protection domain of this patent.
Claims (6)
1. the adjustable method for concentration of suitable few-oil ignition or plasma ignition, it is characterized in that: in the coal dust passage of burner end, by the inside and outside sleeve structure of one section dead in line is set, be formed on and be center coal dust passage in the inner sleeve, outer with inner sleeve in the outer sleeve is the structure of peripheral coal dust passage, in the coal dust passage that closes on inside and outside sleeve section outboard end, the inclination angle control by to some guide vanes realizes the coal dust profile adjustment; The step of regulating is when burner is lighted a fire, and regulates some guide vanes and forms low-angle outlet, and the coal dust major part in the coal dust passage enters inner sleeve at this moment; When burner moves, regulate the outlet that some guide vanes form wide-angle, the coal dust major part in the coal dust passage enters outer sleeve.
2. an adjustable concentrating device that is applicable to few-oil ignition or plasma ignition is characterized in that this adjustable concentrating device comprises elbow, curved tube, guide vane and outer sleeve; Described curved tube places in the elbow, press the overlapping fixed placement of axis, the elbow lower end connects an outer sleeve, in outer sleeve, be positioned at curved tube porch below, be provided with to be positioned at and bend tube axis extended line both sides, two or several guide vanes of symmetric arrays, the fulcrum rotating shaft is established at described each guide vane middle part, some guide vanes rotate synchronously along fulcrum rotating shaft separately, but constitute the top opening that formed by some guide vanes or the coal dust profile adjustment device of reducing; In the reducing of coal dust profile adjustment device upper oral part hour, the distance between the guide vane top is slightly less than the square length of side in curved tube lower end, and when opening was maximum, the guide vane bottom is to be closed or closely adjacent approximate closed condition; Described elbow front end is not held with burner and is connected, and the outer sleeve rear end is connected with pulverized coal channel.
3. a kind of adjustable concentrating device that is applicable to few-oil ignition or plasma ignition as claimed in claim 2 is characterized in that: described elbow, curved tube, guide vane and outer sleeve are all made by high-abrasive material.
4. a kind of adjustable concentrating device that is applicable to few-oil ignition or plasma ignition as claimed in claim 2 is characterized in that: described outer sleeve main body is a square structure, and the import and export end is equipped with the circumference joint.
5. a kind of adjustable concentrating device that is applicable to few-oil ignition or plasma ignition as claimed in claim 2 is characterized in that: described curved tube bottom inlet is for square, and guide vane is a sheet, by two symmetrical distributions.
6. a kind of adjustable concentrating device that is applicable to few-oil ignition or plasma ignition as claimed in claim 5 is characterized in that: described guide vane is the laminated structure of knuckle shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101523317A CN101135444B (en) | 2007-09-27 | 2007-09-27 | Adjustable concentrating device suitable for few-oil ignition or plasma ignition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101523317A CN101135444B (en) | 2007-09-27 | 2007-09-27 | Adjustable concentrating device suitable for few-oil ignition or plasma ignition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101135444A true CN101135444A (en) | 2008-03-05 |
| CN101135444B CN101135444B (en) | 2010-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101523317A Expired - Fee Related CN101135444B (en) | 2007-09-27 | 2007-09-27 | Adjustable concentrating device suitable for few-oil ignition or plasma ignition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101135444B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI500887B (en) * | 2008-12-18 | 2015-09-21 | Alstom Technology Ltd | Coal rope distributor with a head assembly |
| US9151493B2 (en) | 2008-12-18 | 2015-10-06 | Alstom Technology Ltd | Coal rope distributor with replaceable wear components |
| US9593795B2 (en) | 2009-11-02 | 2017-03-14 | General Electric Technology Gmbh | Fuel head assembly with replaceable wear components |
| US9857077B2 (en) | 2008-12-18 | 2018-01-02 | General Electric Technology Gmbh | Coal rope distributor with replaceable wear components |
| CN111256165A (en) * | 2020-03-20 | 2020-06-09 | 烟台龙源电力技术股份有限公司 | Pulverized coal concentration adjusting device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434877B (en) * | 2011-12-26 | 2014-07-09 | 上海锅炉厂有限公司 | Micro oil mass ignition gradual combustor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2256984Y (en) * | 1996-05-22 | 1997-06-25 | 贾臻 | High-concentration coal burner capable of regulating concentration and reheating temp |
| CN2319694Y (en) * | 1997-10-17 | 1999-05-19 | 清华大学 | Adjusting thick/thin powdered coal burner |
| CN2387392Y (en) * | 1999-07-21 | 2000-07-12 | 王炜 | Graded burning coal powder burner |
| CN1243999C (en) * | 2001-12-03 | 2006-03-01 | 吉峰贵司 | Adapter system and imaging system |
| CN2658580Y (en) * | 2003-11-10 | 2004-11-24 | 刘文斌 | Pulverizer coal burner with micro oil, gas igniter |
| CN201110542Y (en) * | 2007-09-27 | 2008-09-03 | 烟台海融电力技术有限公司 | Adjustable concentrating apparatus suitable for few oil ignition or plasma ignition |
-
2007
- 2007-09-27 CN CN2007101523317A patent/CN101135444B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI500887B (en) * | 2008-12-18 | 2015-09-21 | Alstom Technology Ltd | Coal rope distributor with a head assembly |
| US9151434B2 (en) | 2008-12-18 | 2015-10-06 | Alstom Technology Ltd | Coal rope distributor with replaceable wear components |
| US9151493B2 (en) | 2008-12-18 | 2015-10-06 | Alstom Technology Ltd | Coal rope distributor with replaceable wear components |
| US9857077B2 (en) | 2008-12-18 | 2018-01-02 | General Electric Technology Gmbh | Coal rope distributor with replaceable wear components |
| US9593795B2 (en) | 2009-11-02 | 2017-03-14 | General Electric Technology Gmbh | Fuel head assembly with replaceable wear components |
| CN111256165A (en) * | 2020-03-20 | 2020-06-09 | 烟台龙源电力技术股份有限公司 | Pulverized coal concentration adjusting device |
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| Publication number | Publication date |
|---|---|
| CN101135444B (en) | 2010-08-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: YANTAI LONGYUAN ELECTRIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: YANTAI HAIRONG ELECTRIC POWER TECHNOLOGY CO., LTD. Effective date: 20081010 |
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Effective date of registration: 20081010 Address after: Postal code No. 9, Hengshan Road economic and Technological Development Zone, Shandong, Yantai: 264006 Applicant after: Yantai Longyuan Electric Power Technology Co., Ltd. Address before: Postal code 32, Zhujianglu Road 264006, Yantai Development Zone, Shandong, China Applicant before: Yantai Hairong Electric Power Technology Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20100825 Termination date: 20170927 |