CN202544933U - Gas diversion volute - Google Patents
Gas diversion volute Download PDFInfo
- Publication number
- CN202544933U CN202544933U CN2012200763790U CN201220076379U CN202544933U CN 202544933 U CN202544933 U CN 202544933U CN 2012200763790 U CN2012200763790 U CN 2012200763790U CN 201220076379 U CN201220076379 U CN 201220076379U CN 202544933 U CN202544933 U CN 202544933U
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- China
- Prior art keywords
- gas
- runner
- spiral case
- diversion spiral
- gas diversion
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- Expired - Lifetime
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- 239000007789 gas Substances 0.000 claims description 70
- 238000001816 cooling Methods 0.000 claims description 18
- 239000000567 combustion gas Substances 0.000 claims description 16
- 239000002737 fuel gas Substances 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 abstract description 8
- 238000010304 firing Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a gas diversion volute, which comprises a snailed runner and a ring runner, wherein a gas inlet is formed in one end of the snailed runner, and the ring runner is communicated with the other end of the snailed runner; and a gas outlet is formed in the ring runner. The gas diversion volute is applied onto a micro gas turbine. When a combustion chamber is asymmetrically arranged or the combustion chamber is independently arranged outside an engine body in order to improve combustion, the gas diversion volute is applied, so that the size of equipment can be reduced, the flow resistance loss is reduced, and a flow field and a temperature field meeting the requirement of turbine inlet parameters are obtained.
Description
Technical field
The utility model relates to the gas turbine engine field, especially, relates to a kind of gas diversion spiral case.
Background technique
The gas-turbine combustion chamber project organization mainly contains at present: by the multi-combustion chamber that a plurality of can burners form, and connular combustor, reverse flow type combustor, baffling firing chamber etc.The common feature of these firing chambers is: firing chamber or fuel nozzle mounting point, adopt the symplex structure design, and therefore, the collection of combustion gas and water conservancy diversion are easier to realize relatively, only need the bend pipe guiding subassembly of design one symmetrical structure to get final product.But need the space big, and to demanded fuel than higher, so existing general technology not exclusively is suitable for miniature gas turbine, or use some special medium and small gas turbine of low grade fuel.
The model utility content
The utility model purpose be to provide a kind of when improving symmetric design guiding subassembly need the space big, the gas diversion spiral case of problem such as the temperature field is inhomogeneous.
According to the gas diversion spiral case of the utility model, the gas diversion spiral case comprises: the volute runner, and an end of volute runner is provided with fuel gas inlet; Ring runner, ring runner is connected with the other end of volute runner, and ring runner is provided with gas outlet.
Further, fuel gas inlet is along the tangential direction setting of ring runner.
Further, the volute runner is in a spiral manner around the ring runner setting.
Further, the cross-section area of volute runner reduces along the flow direction of combustion gas gradually.
Further, the sidewall of ring runner is provided with the cooling air runner, and the cooling air runner is connected with the cooling air air feeder.
Further, gas outlet is an annular exit.
Further, the inwall of cooling air runner is provided with cooled gas and portals.
Further, the outer wall of cooling air runner is provided with cooled gas and portals.
Further, cooled gas portals and is connected with said ring runner.
Further, gas outlet is along the axial direction setting of ring runner.
The gas diversion spiral case of the utility model, be mainly used in gas turbine engine.When motor adopts single jar of firing chamber or the external firing chamber of asymmetric arrangement; The combustor exit combustion gas gets into the combustion gas spiral case of compact structure; The combustion gas spiral case runner narrow and small along the space changes direction; And press pneumatic and heating power designing requirement entering turbine runner, overcome owing to, make combustion chamber placement can not symmetrical be uniformly distributed with the problem of the pneumatic and heating power aspect that causes when designing for satisfying the needs of its performance or structural design; Can make turbine inlet obtain reasonable, uniform flow field and temperature field, and make pitot loss reach minimum.
Except top described purpose, feature and advantage, the utility model also has other purpose, feature and advantage.Below with reference to accompanying drawings, the utility model is done further detailed explanation.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the side-looking structural representation according to the gas diversion spiral case of the utility model;
Fig. 2 is the structural representation of facing according to the gas diversion spiral case of the utility model;
Fig. 3 is the sectional structure schematic representation according to the gas diversion spiral case of the utility model; And
Fig. 4 is the local enlarged diagram in A place of Fig. 3.
Embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1, the gas diversion spiral case according to the utility model comprises: volute runner 30, and an end of volute runner 30 is provided with fuel gas inlet 70; Ring runner 10, ring runner 10 is connected with the other end of volute runner 30, and ring runner 10 is provided with gas outlet 50.
Referring to Fig. 1; According to the gas diversion spiral case of the utility model, combustion gas tangentially gets into fuel gas inlet 70, and fuel gas inlet 70 is along the arranged tangential of ring runner 10; Be combustion gas is to get into runner along the tangential of spiral case, 10 the axial discharge from gas outlet 50 along ring runner at last.
As stated, combustion gas is passed through from the gas diversion spiral case, from the tangential entering of gas diversion spiral case, axially flows out, and has saved the space, can make the firing chamber external, helps the burning of fuel and the even distribution in temperature field.
Referring to Fig. 2; Gas diversion spiral case according to the utility model; The cross-section area of volute runner 30 reduces along the flow direction of combustion gas gradually, R be the center of said gas diversion spiral case to the distance of gas diversion spiral case outer wall, θ is the angle between the position of flow locations and the said fuel gas inlet 70 of combustion gas in the gas diversion spiral case; R0 is the radius of said ring runner 10; B is the ultimate range between said gas diversion spiral case outer wall and said ring runner 10 outer walls, and when θ equaled 0 °: R got maximum value, this moment R value be R0 and B and; When θ equaled 360 °, R got minimum value, and this moment, the value of R was R0.The position overlaps when equaling 0 ° as θ when θ equals 360 °, and combustion gas this moment gets into and along axial motion one week of volute runner 30 around ring runner 10 from fuel gas inlet 70.
Referring to Fig. 1, the cross section of fluid channel shape of gas diversion spiral case is linked to each other at interval with 4 camber lines by 4 straight lines and constitutes.The ingress sectional area is maximum, and along with the increase of angle of swing, sectional shape gradually changes continuously, and sectional area also reduces continuously gradually.The main type of flow of combustion gas in the spiral case runner is by become the air-flow with certain rotation speed and axial velocity around rotatablely moving of axis.
Referring to Fig. 3 and Fig. 4, according to the gas diversion spiral case of the utility model, the sidewall of ring runner 10 is provided with cooling air runner 20, and cooling air runner 20 is connected with the cooling air air feeder.
Referring to Fig. 2, gas outlet 50 is an annular exit.
Referring to Fig. 2; Gas diversion spiral case according to the utility model; Designed some equally distributed cooled gases on the inner and outer wall of cooling air runner 20 respectively and portalled 90, these cooled gases portal and 90 are connected with the front end air feeder through the gas diversion spiral case, during work; The front end air feeder provides cooling air, is portalled by cooled gas and 90 discharges.
Referring to Fig. 2, according to the gas outlet 50 of the utility model, equally distributed cooled gas portals and discharges cooling air in 90 on the inner and outer wall of gas outlet 50, discharges after getting into gas outlet 50 and the combustion gas mixing of discharging from gas outlet 50 again.
Referring to Fig. 2, according to the annular volute outlet of the utility model, the mixed gas of combustion gas and cooled gas is discharged by gas outlet 50 vertically, gets into next process.
The gas diversion spiral case of the utility model has designed some equally distributed apertures respectively on the inner and outer wall of gas outlet 50, logical cooling air in the aperture.The cooling air that combustion gas is flowed out at gas outlet 50 places and inside and outside wall aperture converges and discharges vertically from gas diversion gas outlet 50.Changed the direction of fuel gas flow, sneaked into cooled gas, making in the time of can not using symmetric design in the design has had good solution, helps adding the distribution in large space and temperature field.
From above description, can find out that the utility model the above embodiments have realized following technique effect:
This technology is mainly used in miniature gas turbine, and the utility model is applied at present to be filled up on the blank following miniature gas turbine of 100kw of China; In the energy-conserving and environment-protective field; To using the medium and small gas-turbine combustion chamber of low grade fuel or other renewable energy sources fuel; When being designed to the outer independent combustion chamber of firing chamber or the engine body of asymmetric arrangement, using the utility model and can reduce equipment volume, reduce flow resistance loss, obtain the flow field and the temperature field of satisfying the turbine inlet parameter request for improving burning.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. a gas diversion spiral case is characterized in that, comprising:
Volute runner (30), an end of said volute runner is provided with fuel gas inlet (70);
Ring runner (10), said ring runner is connected with the other end of said volute runner (30), and said ring runner (10) is provided with gas outlet (50).
2. gas diversion spiral case according to claim 1 is characterized in that, said fuel gas inlet (70) is along the tangential direction setting of said ring runner (10).
3. gas diversion spiral case according to claim 1 is characterized in that, said volute runner (30) is provided with around said ring runner (10) in a spiral manner.
4. gas diversion spiral case according to claim 1 is characterized in that, the cross-section area of said volute runner (30) reduces along the flow direction of combustion gas gradually.
5. gas diversion spiral case according to claim 1 is characterized in that, the sidewall of said ring runner (10) is provided with cooling air runner (20), and said cooling air runner (20) is connected with the cooling air air feeder.
6. gas diversion spiral case according to claim 1 is characterized in that, said gas outlet (50) is an annular exit.
7. gas diversion spiral case according to claim 5 is characterized in that, the inwall of said cooling air runner (20) is provided with cooled gas portal (90).
8. gas diversion spiral case according to claim 7 is characterized in that, the outer wall of said cooling air runner (20) is provided with cooled gas portal (90).
9. gas diversion spiral case according to claim 8 is characterized in that, said cooled gas portal (90) be connected with said ring runner (10).
10. according to each described gas diversion spiral case in the claim 1 to 9, it is characterized in that said gas outlet (50) is along the axial direction setting of said ring runner (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200763790U CN202544933U (en) | 2012-03-02 | 2012-03-02 | Gas diversion volute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200763790U CN202544933U (en) | 2012-03-02 | 2012-03-02 | Gas diversion volute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202544933U true CN202544933U (en) | 2012-11-21 |
Family
ID=47165584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200763790U Expired - Lifetime CN202544933U (en) | 2012-03-02 | 2012-03-02 | Gas diversion volute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202544933U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120192A (en) * | 2017-04-27 | 2017-09-01 | 上海泛智能源装备有限公司 | A kind of scroll casing type collection chamber and gas turbine |
| CN107630725A (en) * | 2017-11-01 | 2018-01-26 | 中国航发湖南动力机械研究所 | Suitable for testing the air inlet volute of ride |
| CN109708146A (en) * | 2017-10-25 | 2019-05-03 | 通用电气公司 | Spiral case trapped vortex combustion device assembly |
| CN110486751A (en) * | 2019-09-25 | 2019-11-22 | 江苏恒军动力科技有限公司 | A kind of combustion chamber of miniature gas turbine generator monopole burning |
| CN111594836A (en) * | 2020-06-19 | 2020-08-28 | 刘迪 | Burners for gas stoves and gas stoves |
-
2012
- 2012-03-02 CN CN2012200763790U patent/CN202544933U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120192A (en) * | 2017-04-27 | 2017-09-01 | 上海泛智能源装备有限公司 | A kind of scroll casing type collection chamber and gas turbine |
| CN109708146A (en) * | 2017-10-25 | 2019-05-03 | 通用电气公司 | Spiral case trapped vortex combustion device assembly |
| CN107630725A (en) * | 2017-11-01 | 2018-01-26 | 中国航发湖南动力机械研究所 | Suitable for testing the air inlet volute of ride |
| CN107630725B (en) * | 2017-11-01 | 2019-05-31 | 中国航发湖南动力机械研究所 | Suitable for testing the air inlet volute of ride |
| CN110486751A (en) * | 2019-09-25 | 2019-11-22 | 江苏恒军动力科技有限公司 | A kind of combustion chamber of miniature gas turbine generator monopole burning |
| CN111594836A (en) * | 2020-06-19 | 2020-08-28 | 刘迪 | Burners for gas stoves and gas stoves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |