CN202381681U - Process hole blocking flange - Google Patents
Process hole blocking flange Download PDFInfo
- Publication number
- CN202381681U CN202381681U CN2011205681824U CN201120568182U CN202381681U CN 202381681 U CN202381681 U CN 202381681U CN 2011205681824 U CN2011205681824 U CN 2011205681824U CN 201120568182 U CN201120568182 U CN 201120568182U CN 202381681 U CN202381681 U CN 202381681U
- Authority
- CN
- China
- Prior art keywords
- flange
- shutoff
- hole
- technological holes
- blocking flange
- 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 - Lifetime
Links
- 230000000903 blocking effect Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 12
- 239000010935 stainless steel Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a process hole blocking flange. The blocking flange (1) is a step-shaped cylinder which is made of high-quality stainless steel; the step surface (2) of the step-shaped cylinder is provided with a planar sealing groove (3) and fixing holes (4) which are uniformly distributed along the circumference; and the small diameter cylindrical surface (5) of the blocking flange (1) is provided with at least one cylindrical surface sealing groove (6). Due to the adoption of the process hole blocking flange, the problem of failure in sealing caused by rusting and the like of the process hole blocking flange for a water turbine shaft after long-time running of a water turbine unit is solved, and the potential safety hazard and risk existing for a long time are eliminated.
Description
Technical field
The utility model relates to a kind of blocking technological holes flange, belongs to the blocking technological holes technical field in the water turbine macro-axis course of working.
Background technique
Water wheels unit macro-axis comprises: turbine shaft, jack shaft, generator shaft etc., these requirements owing to processing technology in processing or assembly process are designed with auxiliary hole.But after assembling is accomplished, need these blocking technological holes be got up, leak along auxiliary hole, avoid occurring the generation of major accidents such as unit emergency shutdown in case spline is taken turns fluids such as indoor press water and pressure gas.
Manufactory is the simple steel flange shutoff when dispatching from the factory; Be shaped as plane cylindrical body; Its sealing means only is provided with one the plane sealing groove on the step surface of plane cylinder shaft body; " O " RunddichtringO is installed, is carried out fasteningly with the Ordinary Steel bolt through auxiliary hole tapped hole on every side, surfaces coated is painted and is carried out preservative treatment then.After hydroelectric power plant's unit is gone into operation; Along with the growth (as: moving 10 years) of working time, antifouling paint comes off gradually, and the shutoff flange and the clamping bolt corrosion thereof that play sealing and plugging action are serious; The risk that shutoff was lost efficacy is increasing gradually, has the hidden danger of major accidents such as unit emergency shutdown.
The model utility content
The purpose of the utility model is, a kind of blocking technological holes flange is provided, and improves the shutoff reliability of water wheels unit auxiliary hole, the hidden danger and the risk of the major accidents such as unit emergency shutdown that elimination shutoff inefficacy causes.
The technological scheme of the utility model
A kind of blocking technological holes flange, the step-like cylindrical body that this shutoff flange is processed for the high-quality stainless steel; Step-like cylindrical step surface is provided with plane sealing groove and the fixed hole that is uniformly distributed along the circumference; The small diameter cylinders face of shutoff flange is provided with at least one cylinder seal groove.
In the aforementioned blocking technological holes flange, the small diameter cylinders face of said shutoff flange is provided with two cylinder seal grooves.
In the aforementioned blocking technological holes flange, the shutoff flange between said plane sealing groove and the cylinder seal groove is provided with test hole, and test hole communicates with the exterior edge face of shutoff flange, and the test aperture at the place, exterior edge face of shutoff flange is a screw mouth; The screw mouth diameter is greater than the test hole diameter.
In the aforementioned blocking technological holes flange, said test hole is L shaped through hole.
In the aforementioned blocking technological holes flange, the smaller diameter end of said shutoff flange is provided with blind hole, the equal in length of blind hole depth and small diameter cylinders.
In the aforementioned blocking technological holes flange, the bottom land right angle side rounding of said plane sealing groove and cylinder seal groove, fillet radius 0.5～1.5mm.
Compared with prior art, the blocking technological holes flange of the utility model adopts the high-quality stainless steel to process, and has improved the decay resistance of shutoff flange greatly; On the small diameter cylinders face of shutoff flange, set up the cylinder seal groove, improved sealing; On the shutoff flange between plane sealing groove and the cylinder seal groove, set up test hole, can test, to guarantee the reliability of sealing the sealing effect of cylinder.It is fastening that the used when mounted clamping bolt of the utility model also adopts the high-quality stainless steel to carry out, and with stainless steel electrode that bolt and shutoff flange is spot-welded together, prevents bolt looseness in the running.The test aperture at place, shutoff flange exterior edge face is a screw mouth, after the test passes, blocks a mouthful back with the high-quality Stainless Steel Wire and welds together with the shutoff flange.The utility model has thoroughly solved the water turbine group leader time and has gone into operation after the operation, thereby the seal failure problem that cause former because of turbine shaft blocking technological holes flange corrosion etc. eliminated long-standing potential safety hazard and risk.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the schematic perspective view of the utility model;
Fig. 3 is the view of Fig. 2 other direction.
Being labeled as in the accompanying drawing: 1-shutoff flange, 2-step surface, 3-plane sealing groove, 4-fixed hole, 5-small diameter cylinders face, 6-cylinder seal groove, 7-test hole, the exterior edge face of 8-shutoff flange, 9-screw mouth, 10-blind hole.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described, but not as the foundation to the utility model restriction.
Embodiment.A kind of blocking technological holes flange, the step-like cylindrical body that this shutoff flange 1 is processed for the high-quality stainless steel; Step-like cylindrical step surface 2 is provided with plane sealing groove 3 and the fixed hole 4 that is uniformly distributed along the circumference; The small diameter cylinders face 5 of shutoff flange 1 is provided with at least one cylinder seal groove 6, preferably establishes two cylinder seal grooves 6.Shutoff flange 1 between plane sealing groove 3 and the cylinder seal groove 6 is provided with test hole 7, and test hole 7 communicates with the exterior edge face 8 of shutoff flange, and the test aperture at 8 places, exterior edge face of shutoff flange 1 is a screw mouth 9; Screw mouth 9 diameters are greater than test hole 7 diameters.Test hole 7 is L shaped through hole.The smaller diameter end of shutoff flange 1 is provided with blind hole 10 etc.The bottom land right angle side rounding of plane sealing groove 3 and cylinder seal groove 6, fillet radius 0.5～1.5mm.
The utility model will have the shutoff flange material now and change the high-quality stainless steel into by carbon steel.Kept existing one plane sealing groove 3; On the small diameter cylinders face 5 of having set up shutoff flange 1, set up simultaneously twice cylinder seal groove 6; During installation; In plane sealing groove 3 and cylinder seal groove 6, place " O " RunddichtringO, carry out fastening with the high-quality stainless steel bolt through the tapped hole around the auxiliary hole then; In order to detect sealing effect, on the shutoff flange 1 between plane sealing groove 3 and the cylinder seal groove 6, be provided with test hole 7.Can make an experiment through test hole 7, the inspection sealing effect, " O " RunddichtringO is not damaged when guaranteeing to install, inspection shutoff flange 1 quality whether once mounting puts in place.Carry out shutoff with the stainless steel plug after the off-test, and plug is welded; Use thread locking glue when adopting the high-quality stainless steel bolt fastening, the whole clamping bolts of spot welding after the fastening completion guarantee that bolt can not become flexible.
Claims (6)
1. a blocking technological holes flange is characterized in that: the step-like cylindrical body that this shutoff flange (1) is processed for the high-quality stainless steel; The fixed hole (4) that step-like cylindrical step surface (2) is provided with plane sealing groove (3) and is uniformly distributed along the circumference; The small diameter cylinders face (5) of shutoff flange (1) is provided with at least one cylinder seal groove (6).
2. according to the said blocking technological holes flange of claim 1, it is characterized in that: the small diameter cylinders face (5) of said shutoff flange (1) is provided with two cylinder seal grooves (6).
3. according to the said blocking technological holes flange of claim 2; It is characterized in that: the shutoff flange (1) between said plane sealing groove (3) and the cylinder seal groove (6) is provided with test hole (7); Test hole (7) communicates with the exterior edge face (8) of shutoff flange (1), and the test aperture that the exterior edge face (8) of shutoff flange (1) is located is screw mouth (9); Screw mouth (9) diameter is greater than test hole (7) diameter.
4. according to the said blocking technological holes flange of claim 3, it is characterized in that: said test hole (7) is L shaped through hole.
5. according to the said blocking technological holes flange of claim 4, it is characterized in that: the smaller diameter end of said shutoff flange (1) is provided with blind hole (10) etc.
6. according to the said blocking technological holes flange of claim 5, it is characterized in that: the bottom land right angle side rounding of said plane sealing groove (3) and cylinder seal groove (6), fillet radius 0.5～1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205681824U CN202381681U (en) | 2011-12-30 | 2011-12-30 | Process hole blocking flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205681824U CN202381681U (en) | 2011-12-30 | 2011-12-30 | Process hole blocking flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381681U true CN202381681U (en) | 2012-08-15 |
Family
ID=46630185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205681824U Expired - Lifetime CN202381681U (en) | 2011-12-30 | 2011-12-30 | Process hole blocking flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381681U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456553A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | High-voltage switch barrel and high-voltage switch using same |
| CN103456430A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | Insulator easy to detect and high-voltage switch comprising insulator |
| CN103456431A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | Basin-type insulator and high-voltage switch with same |
| CN103456550A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | High-voltage switch barrel easy to detect and high-voltage switch comprising high-voltage switch barrel |
| CN103456551A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | High-voltage switch barrel with easy leak detection function and high-voltage switch comprising high-voltage switch barrel |
| CN103456429A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | Insulator easy to detect and high-voltage switch comprising insulator |
| CN103456552A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | High-voltage switch barrel easy to detect and high-voltage switch comprising high-voltage switch barrel |
-
2011
- 2011-12-30 CN CN2011205681824U patent/CN202381681U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456553A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | High-voltage switch barrel and high-voltage switch using same |
| CN103456430A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | Insulator easy to detect and high-voltage switch comprising insulator |
| CN103456431A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | Basin-type insulator and high-voltage switch with same |
| CN103456550A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | High-voltage switch barrel easy to detect and high-voltage switch comprising high-voltage switch barrel |
| CN103456551A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | High-voltage switch barrel with easy leak detection function and high-voltage switch comprising high-voltage switch barrel |
| CN103456429A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | Insulator easy to detect and high-voltage switch comprising insulator |
| CN103456552A (en) * | 2013-01-24 | 2013-12-18 | 河南平高电气股份有限公司 | High-voltage switch barrel easy to detect and high-voltage switch comprising high-voltage switch barrel |
| CN103456550B (en) * | 2013-01-24 | 2016-05-04 | 河南平高电气股份有限公司 | A kind of easy inspection formula high-voltage switch gear cylindrical shell and use the high-voltage switch gear of this cylindrical shell |
| CN103456551B (en) * | 2013-01-24 | 2016-05-04 | 河南平高电气股份有限公司 | A kind of high-voltage switch gear cylindrical shell of easy leak detection and use the high-voltage switch gear of this cylindrical shell |
| CN103456553B (en) * | 2013-01-24 | 2016-05-04 | 河南平高电气股份有限公司 | A kind of high-voltage switch gear cylindrical shell and use the high-voltage switch gear of this cylindrical shell |
| CN103456552B (en) * | 2013-01-24 | 2016-10-05 | 河南平高电气股份有限公司 | A kind of easy survey formula high-voltage switch gear cylinder and use the high-voltage switch gear of this cylinder |
| CN103456431B (en) * | 2013-01-24 | 2017-10-27 | 河南平高电气股份有限公司 | A kind of disc insulator and the high-voltage switch gear using the insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: ZHEJIANG XIANJU PUMPED STORAGE CO., LTD. Effective date: 20130426 Owner name: STATE GRID XINYUAN CO., LTD. ZHEJIANG XIANJU PUMPE Effective date: 20130426 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317300 TAIZHOU, ZHEJIANG PROVINCE TO: 100017 DONGCHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130426 Address after: 100017 No. 96 West Chang'an Avenue, Beijing Patentee after: State Grid Corporation of China Patentee after: State Grid Xinyuan Co., Ltd. Patentee after: ZHEJIANG XIANJU PUMPED STORAGE CO., LTD. Address before: 317300, 6, agricultural bank, 1 Simon Street, Xianju County, Zhejiang, Taizhou Patentee before: ZHEJIANG XIANJU PUMPED STORAGE CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |