CN201196485Y - Strong turbulent motion ventiduct type combustion device used for micro-oil ignition - Google Patents
Strong turbulent motion ventiduct type combustion device used for micro-oil ignition Download PDFInfo
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- CN201196485Y CN201196485Y CNU2008200846142U CN200820084614U CN201196485Y CN 201196485 Y CN201196485 Y CN 201196485Y CN U2008200846142 U CNU2008200846142 U CN U2008200846142U CN 200820084614 U CN200820084614 U CN 200820084614U CN 201196485 Y CN201196485 Y CN 201196485Y
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- air duct
- level
- combustion chamber
- combustion
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Abstract
The utility model discloses a strong turbulent motion air duct type combustion device for tiny oil ignition. The combustion device comprises a cool air pipe, three levels of combustion chambers, a swirler, a tiny oil gun, and a primary air duct. The primary air duct is arranged in the cool air pipe, the swirler is arranged on the tail end of the primary air duct, the tiny oil gun is arranged in the center of the swirler, a first-level combustion chamber, a second-level combustion chamber and a third-level combustion chamber are arranged in turn outwardly from the swirler of the primary air duct, axial circular seams are arranged between each two levels, the third-level combustion chamber is arranged in the center of the cool air pipe, and the wall surface of the first-level combustion chamber has a plurality of radial air inlet holes. When the tiny oil gun works, a tiny amount of oil is atomized in the first-level combustion chamber and forms strong turbulent motion combustion, and subsequently the rest oil are combusted completely in the second-level and third-level combustion chambers. The high-temperature flue gas produced after complete combustion is mixed with the air in the cool air pipe according to a certain proportion, thereby obtaining the hot air required by the dry force output of a coal grinding mill. The combustion device has a small size, a simple structure, complete combustion and low cost.
Description
Technical field
The utility model relates to burner, especially relates to a kind of strong turbulence air duct type burner that is used for tiny-oil ignition.
Background technology
In the boiler unit pulverized-coal system, a wind (hot blast) of raw coal and the preheating of process air preheater is exerted oneself for coal pulverizer provides drying.But boiler is in cold conditions before igniting, and air preheater also starts, and does not have drying to exert oneself, and coal pulverizer just can not play the grinder work like this.In order to obtain the required hot blast of drying capacity of pulverizer, prior art is a heat exchanger to be set introducing on the pipeline of cold wind, and the auxiliary steam that provides with other boiler obtains hot blast as heat transferring medium by heat exchange, be transported to coal pulverizer then, for coal pulverizer provides the drying required hot blast that comes out.This heat exchanger volume is huge, cost height, the on-the-spot inconvenience of installing.
Summary of the invention
At the problem of above existence, the purpose of this utility model provides a kind of strong turbulence air duct type burner that is used for tiny-oil ignition.
The technical solution adopted in the utility model is:
Comprise cold air duct, first-stage burning chamber, combustion chamber, the second level, third level combustion chamber, cyclone, little oil gun and an airduct road; One time the airduct road is installed in the cold air duct, the end in an airduct road is provided with cyclone, little oil gun is positioned at the center of cyclone, outside from the cyclone in an airduct road, set gradually first-stage burning chamber, combustion chamber, the second level and third level combustion chamber, axial circumferential weld is all arranged between every grade, and three grades of combustion chambers are installed on the center of cold air duct, and the wall of first-stage burning chamber has a plurality of radial air inlets hole.
A described airduct road is installed in the cold air duct, is radially to be installed in the cold air duct, or axially is installed in the cold air duct.
The radial air inlet hole of described first-stage burning locular wall face is 1～3 row, equidistantly arranges along same circumference, and the aperture equates that total quantity is 6～20.
The beneficial effect that the utlity model has is:
This burner volume is little, simple in structure, easy for installation, sufficient combustion, and cost is low, the hot blast that needs in the time of can providing coal pulverizer to play mill.
Description of drawings
Fig. 1 is the structural representation that is used for the strong turbulence air duct type burner of tiny-oil ignition.
Fig. 2 is the A-A cutaway view that is used for the strong turbulence air duct type burner of tiny-oil ignition.
Among the figure: 1. cold air duct, 2. first-stage burning chamber, 3. combustion chamber, the second level, 4. third level combustion chamber, 5. radial air inlet hole, 6. cyclone, 7. little oil gun, 8. an airduct road.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1 and Figure 2, the utility model comprises cold air duct 1, first-stage burning chamber 2, combustion chamber, the second level 3, third level combustion chamber 4, cyclone 6, little oil gun 7 and an airduct road 8; An airduct road (8) is installed in the cold air duct 1, the end in an airduct road 8 is provided with cyclone 6, little oil gun 7 is positioned at the center of cyclone 6, outside from the cyclone 6 in an airduct road 8, set gradually first-stage burning chamber 2, combustion chamber, the second level 3 and third level combustion chamber 4, axial circumferential weld is all arranged between every grade, and three grades of combustion chambers are installed on the center of cold air duct 1, and the wall of first-stage burning chamber 2 has a plurality of radial air inlets hole 5.
A described airduct road 8 is installed in the cold air duct 1, is radially to be installed in the cold air duct 1, or axially is installed in the cold air duct 1.
The radial air inlet hole size of described first-stage burning chamber 2 walls equates that hole count is 6～20.2 wall axially-aligned are 1～3 row along the first-stage burning chamber in the radial air inlet hole, are two rows in as shown in Figure 1, and equidistantly arrange along same circumference in the radial air inlet hole.
Operation principle of the present utility model is as follows:
During 7 work of little oil gun, wind in airduct road 8 enter cyclone 6 backs and form the high speed swirling eddies, make fuel oil realize good atomizing, after igniter is lighted in first-stage burning chamber 2 internal combustion.Cold air enters first-stage burning chamber 2 by the axial admission hole 5 of first-stage burning chamber 2 when B end enters cold air duct 1, makes that the air-flows in the first-stage burning chamber 2 produce strong turbulence, realizes the strong turbulence burning of atomized fuel.The cold air that axial circumferential weld by combustion chamber, the second level 3, third level combustion chamber 4 enters makes the oil droplet that part may be imperfect combustion realize completing combustion.Air in the high-temperature flue gas that produces after the completing combustion and the cold air duct 1 mixes according to a certain percentage, discharges from the C end, forms the hot blast that needs when coal pulverizer plays mill.
Combustion chamber, the described second level 3, third level combustion chamber 4 are by axial circumferential weld the air in the cold air duct 1 to be sent into, and make to fail to burn the completing combustion of oil droplet realization completely; The cold air of sending into simultaneously makes the combustion chamber wall surface cooling, and can regulate wind-warm syndrome, and hot blast is mixed.
Claims (3)
1. a strong turbulence air duct type burner that is used for tiny-oil ignition is characterized in that: comprise cold air duct (1), first-stage burning chamber (2), combustion chamber, the second level (3), third level combustion chamber (4), cyclone (6), little oil gun (7) and an airduct road (8); An airduct road (8) is installed in the cold air duct (1), the end in an airduct road (8) is provided with cyclone (6), little oil gun (7) is positioned at the center of cyclone (6), outside from the cyclone (6) in an airduct road (8), set gradually first-stage burning chamber (2), combustion chamber, the second level (3) and third level combustion chamber (4), axial circumferential weld is all arranged between every grade, and three grades of combustion chambers are installed on the center of cold air duct (1), and the wall of first-stage burning chamber (2) has a plurality of radial air inlets hole (5).
2. according to the described a kind of strong turbulence air duct type burner that is used for tiny-oil ignition of claim 1, it is characterized in that: a described airduct road (8) is installed in the cold air duct (1), be radially to be installed in the cold air duct (1), or axially be installed in the cold air duct (1).
3. a kind of strong turbulence air duct type burner that is used for tiny-oil ignition according to claim 1, it is characterized in that: the radial air inlet hole of described first-stage burning chamber (2) wall is 1～3 row, equidistantly arrange along same circumference, the aperture equates that total quantity is 6～20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200846142U CN201196485Y (en) | 2008-03-25 | 2008-03-25 | Strong turbulent motion ventiduct type combustion device used for micro-oil ignition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200846142U CN201196485Y (en) | 2008-03-25 | 2008-03-25 | Strong turbulent motion ventiduct type combustion device used for micro-oil ignition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196485Y true CN201196485Y (en) | 2009-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200846142U Expired - Fee Related CN201196485Y (en) | 2008-03-25 | 2008-03-25 | Strong turbulent motion ventiduct type combustion device used for micro-oil ignition |
Country Status (1)
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| CN (1) | CN201196485Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155842A (en) * | 2011-02-22 | 2011-08-17 | 黑龙江省电力科学研究院 | System for increasing pulverizing and drying output force during doped lignitous coal burning of burning bituminous coal boiler |
| CN102506407A (en) * | 2011-07-20 | 2012-06-20 | 皖能合肥发电有限公司 | Cold start oil auxiliary heating system of boiler and heat source-less independent starting method of generating set |
| CN103223371A (en) * | 2013-04-15 | 2013-07-31 | 刘冰玉 | Coal mill air duct heating device |
| CN103388832A (en) * | 2013-07-05 | 2013-11-13 | 大唐洛阳首阳山发电有限责任公司 | Optimized method for starting heat engine |
-
2008
- 2008-03-25 CN CNU2008200846142U patent/CN201196485Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155842A (en) * | 2011-02-22 | 2011-08-17 | 黑龙江省电力科学研究院 | System for increasing pulverizing and drying output force during doped lignitous coal burning of burning bituminous coal boiler |
| CN102155842B (en) * | 2011-02-22 | 2012-07-25 | 黑龙江省电力科学研究院 | System for increasing pulverizing and drying output force during doped lignitous coal burning of burning bituminous coal boiler |
| CN102506407A (en) * | 2011-07-20 | 2012-06-20 | 皖能合肥发电有限公司 | Cold start oil auxiliary heating system of boiler and heat source-less independent starting method of generating set |
| CN103223371A (en) * | 2013-04-15 | 2013-07-31 | 刘冰玉 | Coal mill air duct heating device |
| CN103388832A (en) * | 2013-07-05 | 2013-11-13 | 大唐洛阳首阳山发电有限责任公司 | Optimized method for starting heat engine |
| CN103388832B (en) * | 2013-07-05 | 2015-09-02 | 大唐洛阳首阳山发电有限责任公司 | Boiler startup optimization method |
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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: 20090218 Termination date: 20100325 |