CN201025371Y - A flame canister with corset structure - Google Patents
A flame canister with corset structure Download PDFInfo
- Publication number
- CN201025371Y CN201025371Y CNU2007200105390U CN200720010539U CN201025371Y CN 201025371 Y CN201025371 Y CN 201025371Y CN U2007200105390 U CNU2007200105390 U CN U2007200105390U CN 200720010539 U CN200720010539 U CN 200720010539U CN 201025371 Y CN201025371 Y CN 201025371Y
- Authority
- CN
- China
- Prior art keywords
- air film
- inner liner
- finger
- burner inner
- tight waist
- 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
Links
Images
Landscapes
- Gas Burners (AREA)
Abstract
A flame tube with beam waist structure belongs to gas turbine technique fields. The flame tube wall includes a plurality of gas film sections with gas film cooling holes, the front end or two ends of the primary combustion zone gas film section is provided with gas film sections with beam waist structure. The utility model can increase the stability of burning and decrease the gas flow speed of the flame tube at a certain degree, the fuel can be fully burned in the flame tube, which can affect the combustion efficiency and the outlet temperature distribution of the combustion chamber.
Description
Technical field
The utility model belongs to the gas turbine technology field, particularly relates to a kind of burner inner liner that has structure with a tight waist.
Background technology
Existing combustion machine flame combustion chamber tube wall surface is to be made of several sections air film sections that have film cooling holes, forms enough spaces and burns for fuel.The primary zone dimensions length that existing air film section constitutes is generally all longer, so not only makes the axial dimension of whole engine longer, inconvenience is installed, and cost is higher.
But the factor that shortening burner inner liner length will be considered is also a lot, and disposal of pollutants, efficiency of combustion etc. all can be affected.
The utility model content
In order to solve the problem of above-mentioned existence, the utility model provides a kind of burner inner liner that has structure with a tight waist, it is the shortening burner inner liner length of trying one's best in the volumetric heat intensity that guarantees burner inner liner, fuel circulation, to reduce the axial length dimension of whole engine, reduces cost.
The utility model is the burner inner liner that has structure with a tight waist, and flame tube wall comprises that multistage has the air film section of film cooling holes, the air film section that is provided with structure with a tight waist at the front end or the two ends of primary zone air film section.Its air film section cross section that has structure with a tight waist is symmetrical manipulator shape, be divided into arm part, the back of the hand portion and finger section, its finger I portion is structure with a tight waist, promptly forms angle with arm part, angular range is 120 °～135 °, and finger I end is burner inner liner barrel diameter D's apart from the distance H of burner inner liner barrel
Finger II portion and burner inner liner axis normal, its cross section forms drops with finger I portion, finger III portion is parallel with the burner inner liner axis, its end surpasses the air film hole of next air film section, air film stream is flowed along the flame tube wall direction, form the right angle between between finger IV portion and finger V portion,, have impact shape cooling hole in the back of the hand portion for being adjacent the intersegmental structure that matches of air film.
On the described air film section that is arranged on having of primary zone air film section front end of structure with a tight waist, the place that the respective combustion chamber focus is high has arc notch.
The utility model forms a containing structure with a tight waist on the wall of annular, back in structure with a tight waist can form a stable low-pressure area, this low-pressure area can be stablized the flame in the primary zone to a certain extent, and fuel is fully burned near low-pressure area.
The utility model can improve the stability of burning, the gas flow rate in the reduction burner inner liner to a certain extent, fuel can be burnt in burner inner liner fully, thereby the outlet temperature that influences efficiency of combustion and combustion chamber distributes.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the air film segment structure schematic diagram that has structure with a tight waist among Fig. 1;
1. burner inner liner imports among the figure 2. have the air film section of film cooling holes, 3. breach, and 4. primary zone 5. has the air film section of structure with a tight waist, 6. cooling hole, 7. air film hole, 8. arm part, 9. the back of the hand portion, 10. finger I portion, 11. finger II portion, 12. finger III portions, 13. finger IV portions, 14. finger V portions.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Embodiment 1: as shown in Figure 1, the utility model is the burner inner liner that has structure with a tight waist, burner inner liner barrel diameter D=280mm in this example, flame tube wall comprises that multistage has the air film section 2 of film cooling holes, the two ends of 4 air film sections are provided with the air film section 5 of structure with a tight waist in the primary zone, first section air film section 5 that has a structure with a tight waist apart from the burner inner liner front end apart from a=177mm, second section distance b=284mm that has the air film section 5 of structure with a tight waist apart from the burner inner liner front end.Its air film section 5 cross sections that have structure with a tight waist are symmetrical manipulator shape, as shown in Figure 2, be divided into arm part 8, the back of the hand portion and 9 finger section, its finger I portion 10 is structure with a tight waist, promptly form 120 ° of angles with arm part 9, the end of finger I portion 10 is burner inner liner barrel diameter D's apart from the distance H of burner inner liner barrel
Be H=35mm, finger II portion 11 and burner inner liner axis normal, its cross section forms drops with finger I portion 10, finger III portion 12 is parallel with the burner inner liner axis, its end surpasses the air film hole of next air film section, air film stream is flowed along the flame tube wall direction, for being adjacent the intersegmental structure that matches of air film, have impact shape cooling hole between pointing IV portion 13 and pointing between V14 portion in the back of the hand portion 9.
On the described air film section 5 that is arranged on having of primary zone 4 air film section front ends of structure with a tight waist, the place that the respective combustion chamber focus is high has arc notch 3.
The utility model forms a containing structure with a tight waist on the wall of annular, shown in the finger I portion 10 among Fig. 2, back in structure with a tight waist can form a stable low-pressure area 15, this low-pressure area 15 can be stablized the flame in the primary zone 4 to a certain extent, and fuel is fully burned near low-pressure area 15.
Embodiment 2: as shown in Figure 1, the utility model is the burner inner liner that has structure with a tight waist, burner inner liner barrel diameter D=280mm in this example, flame tube wall comprises that multistage has the air film section 2 of film cooling holes, the front end of 4 air film sections is provided with the air film section 5 of structure with a tight waist in the primary zone, the air film section 5 that has a structure with a tight waist apart from the burner inner liner front end apart from a=177mm.Its air film section 5 cross sections that have structure with a tight waist are symmetrical manipulator shape, as shown in Figure 2, be divided into arm part 8, the back of the hand portion and 9 finger section, its finger I portion 10 is structure with a tight waist, promptly form 135 ° of angles with arm part 9, the end of finger I portion 10 is apart from the distance H=46mm of burner inner liner barrel, finger II portion 11 and burner inner liner axis normal, its cross section forms drops with finger I portion 10, finger III portion 12 is parallel with the burner inner liner axis, and its end surpasses the air film hole of next air film section, and air film stream is flowed along the flame tube wall direction, for being adjacent the intersegmental structure that matches of air film, have impact shape cooling hole between between finger IV portion 13 and finger V14 portion in the back of the hand portion 9.On the described air film section 5 that is arranged on having of primary zone 4 air film section front ends of structure with a tight waist, the place that the respective combustion chamber focus is high has arc notch 3.
Embodiment 3: as shown in Figure 1, the utility model is the burner inner liner that has structure with a tight waist, burner inner liner barrel diameter D=280mm in this example, flame tube wall comprises that multistage has the air film section 2 of film cooling holes, the front end of 4 air film sections is provided with the air film section 5 of structure with a tight waist in the primary zone, the air film section 5 that has a structure with a tight waist apart from the burner inner liner front end apart from a=177mm.Its air film section 5 cross sections that have structure with a tight waist are symmetrical manipulator shape, as shown in Figure 2, be divided into arm part 8, the back of the hand portion and 9 finger section, its finger I portion 10 is structure with a tight waist, promptly form 130 ° of angles with arm part 9, during this routine burner inner liner barrel diameter D=280mm, the end of finger I portion 10 is apart from the distance H=38mm of burner inner liner barrel, finger II portion 11 and burner inner liner axis normal, its cross section forms drops with finger I portion 10, finger III portion 12 is parallel with the burner inner liner axis, its end surpasses the air film hole of next air film section, air film stream is flowed along the flame tube wall direction, for being adjacent the intersegmental structure that matches of air film, have impact shape cooling hole between pointing IV portion 13 and pointing between V14 portion in the back of the hand portion 9.On the described air film section 5 that is arranged on having of primary zone 4 air film section front ends of structure with a tight waist, the place that the respective combustion chamber focus is high has arc notch 3.
Claims (3)
1. burner inner liner that has structure with a tight waist, flame tube wall comprises that multistage has the air film section of film cooling holes, it is characterized in that the air film section that is provided with structure with a tight waist at the front end or the two ends of primary zone air film section.
2. the burner inner liner that has structure with a tight waist according to claim 1, it is characterized in that the described air film section cross section that has structure with a tight waist is symmetrical manipulator shape, be divided into arm part, the back of the hand portion and finger section, its finger I portion is structure with a tight waist, promptly form angle with arm part, angular range is 120 °～135 °, and finger I end is burner inner liner barrel diameter D's apart from the distance H of burner inner liner barrel
Finger II portion and burner inner liner axis normal, its cross section forms inverted drops with finger I portion, and finger III portion is parallel with the burner inner liner axis, forms the right angle between pointing IV portion and pointing between V portion, for being adjacent the intersegmental structure that matches of air film, have impact shape cooling hole in the back of the hand portion.
3. the burner inner liner that has structure with a tight waist according to claim 1 is characterized in that the place that the respective combustion chamber focus is high has arc notch on the described air film section that has structure with a tight waist that is arranged on primary zone air film section front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200105390U CN201025371Y (en) | 2007-02-09 | 2007-02-09 | A flame canister with corset structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200105390U CN201025371Y (en) | 2007-02-09 | 2007-02-09 | A flame canister with corset structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025371Y true CN201025371Y (en) | 2008-02-20 |
Family
ID=39099231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200105390U Expired - Fee Related CN201025371Y (en) | 2007-02-09 | 2007-02-09 | A flame canister with corset structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025371Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423344A (en) * | 2016-01-12 | 2016-03-23 | 西北工业大学 | Flame tube structure of combustion chamber of ground gas turbine |
-
2007
- 2007-02-09 CN CNU2007200105390U patent/CN201025371Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423344A (en) * | 2016-01-12 | 2016-03-23 | 西北工业大学 | Flame tube structure of combustion chamber of ground gas turbine |
| CN105423344B (en) * | 2016-01-12 | 2017-12-29 | 西北工业大学 | A kind of flame tube structure of ground combustion machine combustion chamber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105318328B (en) | The interior more flame low NOX gas burners of circulation | |
| CN105042640A (en) | Cooling structure of flame tube of aero-engine combustor | |
| CN110822430A (en) | Low-nitrogen combustor based on multistage swirler | |
| CN103868055A (en) | Regenerative combustion device applicable to stable combustion of compounded tangent-flow and direct-flow gas with low calorific value | |
| CN102818291B (en) | Flame tube | |
| CN201025371Y (en) | A flame canister with corset structure | |
| CN108413394A (en) | A kind of natural gas premix burner with segmentation slit spout structure | |
| CN101294705A (en) | Highly effective internal combustion type pulverized coal burner with ignition source | |
| CN106247408A (en) | A kind of widening is tempered the nozzle of nargin, nozzle array and burner | |
| CN105674314A (en) | Dust-settling compartment of biomass hot blast heater | |
| CN1098489A (en) | Coal-powder boiler adjustable concentration low load automatic stable burning and slag-bonding protective device | |
| CN201875703U (en) | Pulverized coal burner and pulverized coal boiler | |
| CN108397774A (en) | It is a kind of to be used for natural gas and the coal dust individually burner of burning or multifuel combustion | |
| CN211424388U (en) | Low-nitrogen combustor based on multistage swirler | |
| CN208859599U (en) | Swirl injection burner | |
| CN201852088U (en) | Pulverized coal concentrator, pulverized coal burner and pulverized coal boiler | |
| CN206846708U (en) | A kind of eddy flow back-diffusion flame burner | |
| CN201875702U (en) | Coal burner and boiler | |
| CN102506423A (en) | Method for assisting in igniting low-volatile coal in burning by adding oxygen | |
| CN205191561U (en) | Regenerative burner that can fully burn | |
| CN102454987B (en) | Pulverized coal burner and boiler with the same | |
| CN201875701U (en) | Pulverized coal combustor and boiler with same | |
| CN202581296U (en) | Powder concentrator and combustor comprising same | |
| CN204806393U (en) | Novel ceramic kiln gas combustion device | |
| CN108105765A (en) | A kind of low NOx steady burning burners in boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20150209 |
|
| EXPY | Termination of patent right or utility model |