CN203685394U - Disturbing ring structure of uniform gas temperature field - Google Patents
Disturbing ring structure of uniform gas temperature field Download PDFInfo
- Publication number
- CN203685394U CN203685394U CN201320775260.7U CN201320775260U CN203685394U CN 203685394 U CN203685394 U CN 203685394U CN 201320775260 U CN201320775260 U CN 201320775260U CN 203685394 U CN203685394 U CN 203685394U
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- Prior art keywords
- disturbing ring
- flow
- ring structure
- gas temperature
- disturbing
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- Expired - Fee Related
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- 239000002737 fuel gas Substances 0.000 claims description 15
- 230000008602 contraction Effects 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 239000000567 combustion gas Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a disturbing ring structure of a uniform gas temperature field. The disturbing ring structure comprises a disturbing ring body, a circulation hole is formed in the disturbing ring body and successively consists of a constriction section, a linear path and an expansion section, the other end of the constriction section is fixedly connected with the wall of a combustion chamber, and the other end of the expansion section is fixedly connected with an outlet pipe. The disturbing ring structure solves the technical problem that an existing disturbing ring is unable to meet the requirements of a gas flow field of an engine gas generator. The disturbing ring structure for uniformizing gas temperature field is used to improve the uniformity of the gas temperature field and overcomes the limitations of a common disturbing ring structure, and integrates the advantages of strong turbulence of a rectangular disturbing ring structure and low flow resistance of a circular triangle structure.
Description
Technical field
The utility model relates to a kind of novel flow-disturbing ring structure, and this structure current-sharing is respond well, and overall structure is simple, be easy to manufacturing.Be applicable to engine gas generator exports end, can significantly improve the uniformity of gas outlet temperature field, to combustion gas flow-disturbing successful, and flow resistance is lower, has ensured engine work.
Background technique
At present, be to improve the uniformity of fuel gas temperature field, the common flow-disturbing ring structure of employing is rectangle, circular triangle and or both structures of mixing.Rectangle flow-disturbing ring structure flow-disturbing is strong, is convenient to improve the temperature homogeneity of combustion gas field, but can cause that the flow resistance of combustion gas increases simultaneously, makes fluid field pressure loss larger; Circular triangle structure has low flow resistance characteristic, but its flow-disturbing a little less than, be unfavorable for improving the uniformity of outlet fuel gas temperature field, and the manufacturing of arc surface is comparatively complicated.Engine gas generator gas flow field requires outlet fuel gas temperature field uniformity good, and flow resistance is as far as possible little, to sum up analyzes, and the flow-disturbing ring of common structure all has some limitations.
Summary of the invention
Cannot meet the technical problem of engine gas generator gas flow field requirement in order to solve existing flow-disturbing ring, the utility model provides the flow-disturbing ring structure of a kind of even fuel gas temperature field, improve the uniformity of fuel gas temperature field, and overcome the narrow limitation of common flow-disturbing ring structure, had the strong flow-disturbing of rectangle flow-disturbing ring structure and the low flow resistance advantage of circular triangle structure concurrently.
Technical solution of the present utility model is:
The flow-disturbing ring structure of a kind of even fuel gas temperature field, its special way is: comprise flow-disturbing ring body 1, be arranged on the opening on flow-disturbing ring body, described opening comprises contraction section 11, straightway 12 and extending section 13 successively, the other end of described contraction section 11 is fixedly connected with chamber wall 2, and the other end of described extending section 13 is fixedly connected with outer pipe 3.
The passing rate of above-mentioned opening is 30%-40%.
The cone angle of above-mentioned contraction section 11 is 80-100 °, and the cone angle of described extending section 13 is 140-160 °.
The slenderness ratio of the opening of above-mentioned straightway 12 correspondences is 0.1-0.2.
The other end of upper contraction section 11 and chamber wall 2 are by being welded and fixed.
The other end of above-mentioned extending section 13 and outer pipe 3 are by being welded and fixed.
The utility model advantage is compared with prior art:
1, the utility model structure is compared with rectangle flow-disturbing ring structure, and this conical surface flow-disturbing ring has low flow resistance characteristic, and fuel gas flow loss is reduced.
2, the utility model structure is compared with circular triangle flow-disturbing ring, and this conical surface flow-disturbing ring has stronger flow-disturbing characteristic, and the fuel gas temperature of generator exports is had good uniformity.
3, the utility model structure composition the advantage of common flow-disturbing ring structure, overall flow-disturbing is functional.
4, the utility model processability of product structure is good, easily manufacturing.
Brief description of the drawings
Fig. 1 the utility model structure flow-disturbing ring is installed on generator firing chamber end and partly cuts open structural drawing;
The sectional view of Fig. 2 the utility model structure flow-disturbing ring;
Wherein reference character is: 1-flow-disturbing ring body, 2-chamber wall, 3-outer pipe, 11-contraction section, 12-straightway, 13-extending section.
Embodiment
As shown in Figure 1, the utility model structure flow-disturbing ring body 1 is welded between chamber wall 2 and outer pipe 3, forms generator chamber wall assembly.After above-mentioned welding completes, the installation of this structure flow-disturbing ring, is positioned at combustor exit end, and outlet combustion gas is carried out to flow-disturbing, improves the temperature homogeneity of outlet combustion gas.Flow-disturbing ring one end and chamber wall 2 are by being welded and fixed, and the other end of flow-disturbing ring and outer pipe 3 are by being welded and fixed.
On flow-disturbing ring body, be arranged on the opening on flow-disturbing ring body, opening comprises that contraction section 11(is windward side successively), straightway 12 and extending section 13(be lee face), the other end of contraction section 11 is fixedly connected with chamber wall 2, and the other end of extending section 13 is fixedly connected with outer pipe 3.The windward side of flow-disturbing ring and lee face are designed to the conical surface shape between right angle face and arc surface.
The passing rate of opening is 30%-40%, can ensure suitable flow rate.
The cone angle of contraction section 11 is 80-100 °, can ensure good mixing intensity; The cone angle of extending section 13 is 140-160 °, can weaken gas pressure field of force sudden change degree.
The slenderness ratio of the opening that straightway is corresponding is 0.1-0.2, can eliminate the minimum circulating face local temperature of flow-disturbing ring too high.
The foregoing description of the present embodiment and accompanying drawing have represented preferred version of the present utility model, under the number range situation that those skilled in the art can define in claim according to different designing requirements and design parameter, suitably improve, therefore, the utility model is widely.
Claims (6)
1. the flow-disturbing ring structure of an even fuel gas temperature field, it is characterized in that: comprise flow-disturbing ring body (1), be arranged on the opening on flow-disturbing ring body, described opening comprises contraction section (11), straightway (12) and extending section (13) successively, the other end of described contraction section (11) is fixedly connected with chamber wall (2), and the other end of described extending section (13) is fixedly connected with outer pipe (3).
2. the flow-disturbing ring structure of even fuel gas temperature according to claim 1 field, is characterized in that: the passing rate of described opening is 30%-40%.
3. the flow-disturbing ring structure of even fuel gas temperature according to claim 1 and 2 field, is characterized in that: the cone angle of described contraction section (11) is 80-100 °, the cone angle of described extending section (13) is 140-160 °.
4. the flow-disturbing ring structure of even fuel gas temperature according to claim 3 field, is characterized in that: the slenderness ratio of the opening that described straightway (12) is corresponding is 0.1-0.2.
5. the flow-disturbing ring structure of even fuel gas temperature according to claim 4 field, is characterized in that: the other end of described contraction section (11) and chamber wall (2) are by being welded and fixed.
6. the flow-disturbing ring structure of even fuel gas temperature according to claim 4 field, is characterized in that: the other end of described extending section (13) and outer pipe (3) are by being welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775260.7U CN203685394U (en) | 2013-11-28 | 2013-11-28 | Disturbing ring structure of uniform gas temperature field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775260.7U CN203685394U (en) | 2013-11-28 | 2013-11-28 | Disturbing ring structure of uniform gas temperature field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685394U true CN203685394U (en) | 2014-07-02 |
Family
ID=51007306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320775260.7U Expired - Fee Related CN203685394U (en) | 2013-11-28 | 2013-11-28 | Disturbing ring structure of uniform gas temperature field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685394U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615320A (en) * | 2013-11-28 | 2014-03-05 | 中国航天科技集团公司第六研究院第十一研究所 | Turbulent flow ring structure with uniform fuel gas temperature field |
| CN107643021A (en) * | 2017-09-21 | 2018-01-30 | 北京机械设备研究所 | One kind plays perpendicular fuel tank |
-
2013
- 2013-11-28 CN CN201320775260.7U patent/CN203685394U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615320A (en) * | 2013-11-28 | 2014-03-05 | 中国航天科技集团公司第六研究院第十一研究所 | Turbulent flow ring structure with uniform fuel gas temperature field |
| CN107643021A (en) * | 2017-09-21 | 2018-01-30 | 北京机械设备研究所 | One kind plays perpendicular fuel tank |
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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: 20140702 |