CN204389107U - A kind of gas turbine casing suppresses leakage test blanking cover - Google Patents
A kind of gas turbine casing suppresses leakage test blanking cover Download PDFInfo
- Publication number
- CN204389107U CN204389107U CN201420470080.2U CN201420470080U CN204389107U CN 204389107 U CN204389107 U CN 204389107U CN 201420470080 U CN201420470080 U CN 201420470080U CN 204389107 U CN204389107 U CN 204389107U
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- CN
- China
- Prior art keywords
- stereotyped
- dull
- blanking cover
- flat board
- rectangular flat
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- 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
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Abstract
The utility model provides one and suppresses leakage test blanking cover for gas turbine casing, blanking cover one end is circular dull and stereotyped (4), the other end is two rectangular flat boards (6), (7) of intersection, two ends are connected by bolt (1), nut (2), are sealed by adjustment lining (9) and pressing plate (3) compression rubber blanket (5), O-ring seal (8).Conveniently install, process an internal thread hole in bolt (1) end and screw rod (10) is installed.What the utility model can be used for gas turbine casing suppresses leakage test.This blanking cover has the advantages such as easy for installation, low cost of manufacture.
Description
Technical field
The utility model relates to a kind of gas turbine casing and suppresses leakage test blanking cover, suppresses leakage test for gas turbine casing.
Background technology
Gas turbine has seal request to casing, needs to carry out suppressing leakage test to check the sealing of casing.Suppress leakage test requirement for mounting edge in casing, devise one and suppress leakage test blanking cover.
Summary of the invention
The utility model object is to provide a kind of convenient to disassembly, low cost of manufacture, and what usable range was wide suppresses blanking cover.
The technical solution of the utility model is, a kind of gas turbine casing suppresses leakage test blanking cover, it is characterized in that: comprise bolt 1, nut 2, pressing plate 3, dull and stereotyped 4, sealing gasket 5, first rectangular dull and stereotyped 6, the second rectangular dull and stereotyped 7, O-ring seal 8 and adjustment lining 9, blanking cover one end is dull and stereotyped 4, the other end is intersect first rectangular dull and stereotyped 6, second rectangular dull and stereotyped 7, two ends are connected by bolt 1, nut 2, compress rubber blanket 5, O-ring seal 8 seals by pressing plate 3; Dull and stereotyped 4 is circular or rectangle; Circular dull and stereotyped diameter is not less than the first rectangular dull and stereotyped 6, second rectangular length of dull and stereotyped 7, there is raised structures at first rectangular dull and stereotyped 6 and second rectangular dull and stereotyped 7 two ends, side, be processed with restriction first rectangular dull and stereotyped 6 and the groove E of the second rectangular dull and stereotyped 7 relative rotations in the middle part of first rectangular dull and stereotyped 6 opposite sides, in the middle part of the second rectangular dull and stereotyped 7 opposite sides, be processed with the groove D that restriction bolt 1 rotates; Second rectangular dull and stereotyped 7, first flat board 6, sealing gasket 5, flat board 4, O-ring seal 8, pressing plate 3 are connected by bolt 1 successively with adjustment lining 9, pressing plate 3 is arranged on outside dull and stereotyped 4, sealed by dull and stereotyped 4 press seal pads 5, pressing plate 3 press seal circle 8, the A face of dull and stereotyped 4 and sealing gasket 5 contact outside, made A, B, C face contact with mounting edge by tightening of nut 2 and ensured not reveal.
The screw thread end face of described bolt 1 is provided with screw rod 10.
The described first rectangular dull and stereotyped 6 and second rectangular length of dull and stereotyped 7 and width of groove E compared with second dull and stereotyped 7 width large 0.5-2 mm equal with width, groove D width is compared with the large 1-2 mm of the S value of bolt 1.
The described diameter of dull and stereotyped 4 is not less than the first rectangular dull and stereotyped 6 and second rectangular length of dull and stereotyped 7, and the diameter of dull and stereotyped 4 is not more than 400 mm.
Described bolt 1 nominal diameter is not more than 36 mm and flat flat is processed in end so that install, and the first rectangular dull and stereotyped 6, second rectangular width of dull and stereotyped 7 is not more than 2 times of bolt 1 nominal diameter.
Dull and stereotyped 4 center-hole diameters and bolt 1 polished rod diameter are clearance fit, and tolerance on fit is H7/h6.
Suppress seal test pressure and be not more than 0.5MPa.
Advantage of the present utility model:
Blanking cover described in the utility model can be used for gas turbine sections casing and suppresses leakage test, convenient to disassembly, low cost of manufacture, and usable range is wide, substantially reduces test setup time.
Accompanying drawing explanation
Fig. 1 is blocking cover structure schematic diagram
Fig. 2 is A-A view
Fig. 3 is I partial schematic diagram (sealing state)
Embodiment
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
Certain type gas turbine Middle casing inner chamber mounting edge internal diameter is 280mm, and thickness is 10mm, and bolt mounting holes pitch circle diameter is 300mm.
Suppress leakage test requirement for this casing, bolt 1 polished rod (the large footpath of multidiameter) diameter is 24 mm, and length is 45mm, and multidiameter path is processed as M20 screw thread and processes the threaded hole of a M6 at thread end, and bolt 1 overall length is 90 mm; Nut 2 selects M20; Pressing plate 3 thickness is 5mm, external diameter is 50mm, internal diameter is 24mm; Dull and stereotyped 4 diameters are 330mm, and thickness is 10mm, and center-hole diameter is 24mm; Sealing gasket 5 thickness is 2 mm, external diameter is 330mm, internal diameter is 230mm; First rectangular dull and stereotyped 6, the second rectangular length of dull and stereotyped 7 is 330mm, width 35mm, and center-hole diameter is 26mm, is highly respectively 28mm, 35mm, and groove D is of a size of 35 × 3 mm, and groove E is of a size of 37 × 5mm; O-ring seal 8 selects O shape to enclose 24.3 × 2.65 standard components; Adjustment lining 9 length is 10mm, external diameter is 50mm, internal diameter is 26mm; Screw rod 10 for length be 50mm, diameter is the axle of 6mm, and at one end processing length is the M6 screw thread of 10.
By bolt 1, screw rod 10, sealing gasket 5, first rectangular dull and stereotyped 6, second rectangular dull and stereotyped 7 connects according to shown in Fig. 1, first by first rectangular dull and stereotyped 6, second rectangular dull and stereotyped 7 tilts to put into Middle casing inner chamber, rotate to an angle first rectangular dull and stereotyped 6 again and make it rectangular with second dull and stereotyped 7 vertical, then dull and stereotyped 4 are installed successively, O-ring seal 8, pressing plate 3, adjustment lining 9 makes A face and sealing gasket 5 contact outside of dull and stereotyped 4 by fastening nut 2, the B face of first rectangular dull and stereotyped 6, the C face of second rectangular dull and stereotyped 7 and Middle casing inner chamber mounting edge interior side contacts, A face by dull and stereotyped 4 realizes sealing.
Claims (5)
1. a gas turbine casing suppresses leakage test blanking cover, it is characterized in that, blanking cover one end is dull and stereotyped (4), the other end is the first rectangular flat board (6) and the second rectangular flat board (7) that intersect, two ends are connected by bolt (1), nut (2), are sealed by pressing plate (3) compression rubber blanket (5), O-ring seal (8); Dull and stereotyped (4) are circular or rectangle; Circular dull and stereotyped diameter is not less than the length of the first rectangular flat board (6), the second rectangular flat board (7).
2. gas turbine casing according to claim 1 suppresses leakage test blanking cover, it is characterized in that, the diameter of dull and stereotyped (4) is not more than 400 mm, bolt (1) nominal diameter is not more than 36 mm and flat flat is processed in end so that install, and the width of the first rectangular flat board (6), the second rectangular flat board (7) is not more than 2 times of bolt (1) nominal diameter.
3. gas turbine casing according to claim 1 suppresses leakage test blanking cover, it is characterized in that, first rectangular flat board (6) side devises the groove (E) of the rectangular flat board of restriction first (6) and the relative rotation of the second rectangular flat board (7), and its width is compared with the large 0.5-2mm of the second rectangular flat board (7); Second rectangular flat board (7) side devises restriction bolt (1) groove (D) that rotates, the large 1-2mm of S value of its width comparatively bolt (1).
4. gas turbine casing according to claim 1 suppresses leakage test blanking cover, it is characterized in that, dull and stereotyped (4) center-hole diameter and bolt (1) polished rod diameter are clearance fit, and tolerance on fit is H7/h6.
5. gas turbine casing according to claim 1 suppresses leakage test blanking cover, it is characterized in that, suppresses seal test pressure and is not more than 0.5MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470080.2U CN204389107U (en) | 2014-08-17 | 2014-08-17 | A kind of gas turbine casing suppresses leakage test blanking cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470080.2U CN204389107U (en) | 2014-08-17 | 2014-08-17 | A kind of gas turbine casing suppresses leakage test blanking cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204389107U true CN204389107U (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420470080.2U Expired - Fee Related CN204389107U (en) | 2014-08-17 | 2014-08-17 | A kind of gas turbine casing suppresses leakage test blanking cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204389107U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219045A (en) * | 2016-03-21 | 2017-09-29 | 北京澳尔金石油技术开发有限公司 | The fuel valve leak testing method and system of a kind of gas turbine |
| CN108150650A (en) * | 2017-12-06 | 2018-06-12 | 中国航发动力股份有限公司 | A kind of abnormity window suppresses encapsulating method |
| CN108775990A (en) * | 2018-08-14 | 2018-11-09 | 中国航发南方工业有限公司 | Casing component oil circuit package seal checker and detection method |
| CN112345170A (en) * | 2020-10-22 | 2021-02-09 | 中国航发贵州黎阳航空动力有限公司 | Aeroengine supporting casing airtightness detection clamp and detection method |
| CN112747998A (en) * | 2019-10-31 | 2021-05-04 | 中国航发商用航空发动机有限责任公司 | Sealing device and sealing method for pressure test of pressure-bearing member |
-
2014
- 2014-08-17 CN CN201420470080.2U patent/CN204389107U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219045A (en) * | 2016-03-21 | 2017-09-29 | 北京澳尔金石油技术开发有限公司 | The fuel valve leak testing method and system of a kind of gas turbine |
| CN108150650A (en) * | 2017-12-06 | 2018-06-12 | 中国航发动力股份有限公司 | A kind of abnormity window suppresses encapsulating method |
| CN108775990A (en) * | 2018-08-14 | 2018-11-09 | 中国航发南方工业有限公司 | Casing component oil circuit package seal checker and detection method |
| CN112747998A (en) * | 2019-10-31 | 2021-05-04 | 中国航发商用航空发动机有限责任公司 | Sealing device and sealing method for pressure test of pressure-bearing member |
| CN112345170A (en) * | 2020-10-22 | 2021-02-09 | 中国航发贵州黎阳航空动力有限公司 | Aeroengine supporting casing airtightness detection clamp and detection method |
| CN112345170B (en) * | 2020-10-22 | 2022-08-30 | 中国航发贵州黎阳航空动力有限公司 | Aeroengine supporting casing airtightness detection clamp and detection method |
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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: 20150610 Termination date: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |