CN203823348U - Large-diameter medium-high-water-head-pressure steel pipe end cap - Google Patents
Large-diameter medium-high-water-head-pressure steel pipe end cap Download PDFInfo
- Publication number
- CN203823348U CN203823348U CN201420223073.2U CN201420223073U CN203823348U CN 203823348 U CN203823348 U CN 203823348U CN 201420223073 U CN201420223073 U CN 201420223073U CN 203823348 U CN203823348 U CN 203823348U
- Authority
- CN
- China
- Prior art keywords
- flange
- steel pipe
- head
- water
- end cap
- 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
- 229910000831 Steel Inorganic materials 0.000 title abstract description 18
- 239000010959 steel Substances 0.000 title abstract description 18
- 206010019233 Headaches Diseases 0.000 title abstract 4
- 238000000034 method Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model relates to the technical field of water resources and hydropower engineering, in particular to a large-diameter medium-high-water-head-pressure steel pipe end cap which comprises a pair of left flange and right flange connected through a bolt. The left flange is a section of flange pipe, and the right flange is a flange plate. Rib plates which are arranged in a staggered mode horizontally and longitudinally are arranged at the inner end of the right flange plate face. One or more sealing rings are arranged on the abutting-connecting face of the left flange and the right flange. The large-diameter medium-high-water-head-pressure steel pipe end cap well solves the problem that in the existing steel pipe sealing technology, the large-diameter sealing technology standard and products do not exist, and the large-diameter medium-high-water-head-pressure steel pipe end cap has the advantages of being simple in structure, reliable in sealing, convenient to mount, low in manufacturing cost and the like.
Description
Technical field
The utility model relates to the technical field of Hydraulic and Hydro-Power Engineering, relates in particular to high―head penstock plug in a kind of heavy caliber.
Background technique
In the prior art, steel pipe plug is the pipe plugging member that flowing medium pipeline is conventional.In Hydraulic and Hydro-Power Engineering, because of engine request, need carry out shutoff processing to some heavy caliber penstocks.In existing pipe plugging technology, only the plug of DN2000 and following pipeline is had to technical parameter standard series, and a reliable performance, but for the non-standard component penstock in the places such as water power plant, its plug is without unified technical standard.
Model utility content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, provide a kind of rational in infrastructure, high―head penstock plug in the good heavy caliber of plugging effect.
The technical solution of model utility is: high―head penstock plug in a kind of heavy caliber, comprise a pair of left and right flange being bolted, and left flange is the blue pipe of one-stage process, and right flange is flange plate, and right flange surface inner end is with crisscross gusset.On the flange interface of left and right, there is together or one above seal ring.
By sleeve portion liner and the shutoff steel duct of high―head penstock plug in heavy caliber (DN2000～7000), and the inside and outside of steel pipe plug together with shutoff steel-pipe welding, realize the reliable shutoff of penstock.
The utility model has the advantages that: there is in heavy caliber high―head penstock plug and solved preferably in existing steel pipe blocking technology without the problem of heavy caliber blocking technology standard and product, there is the features such as simple in structure, shutoff is reliable, easy for installation, cost is low.
Below in conjunction with accompanying drawing, mode of execution of the present utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the utility model structure diagram.
Fig. 2 is right flange arrangement sketch.
Fig. 3 is bolt joint structure for amplifying sketch.
Embodiment
Referring to Fig. 1,2,3, component title is as follows: bolt 1, left flange 2, right flange 3, gusset 4, seal ring 5, shutoff steel pipe 6.
Referring to Fig. 1,2,3, high―head penstock plug in a kind of heavy caliber, comprise a pair of left and right flanges connecting by bolt 12,3, left flange 2 is the blue pipe of one-stage process (band casing flange), right flange 3 is the blind flange dish (flange of middle atresia, shutoff plectane), right flange 3 card inner ends are with crisscross gusset 4.Can liner and is welded in former penstock in flanged pipe one end of left flange 2, realizes shutoff.On left and right flanges 2,3 interfaces, there is two seals circle 5.Bolt 1 is fastening with spring pad.
By the sleeve portion liner of high―head penstock plug in heavy caliber and shutoff steel pipe 6 inside, and the inside and outside of steel pipe plug together with shutoff steel-pipe welding, realize the reliable shutoff of penstock, solved preferably in existing steel pipe blocking technology without heavy caliber blocking technology standard and supporting problem.
Preferably, with casing flange, it is the weldment that the steel pipe that is 300～500mm of the length with original penstock uniform thickness and thickness are not less than 1.5 times of steel pipe thickness steel flange plates, its material and original steel pipe are with material or Q235B or Q345B, flanged surface with casing flange is the plane through processing, on it, inner side arranges the rectangular cross section annular groove of placing twice O RunddichtringO and having a fixed gap, size is preferably 12mm * 8mm, through hole at its outside uniform distributed fastening bolt 1, aperture is pressed bolt diameter and is determined, pitch-row should be greater than 4 times of apertures, sealing surface roughness is less than or equal to Ra6.4.
Preferably, blind flange dish is that one-sided internal table mask has laterally and vertically layout, thickness are the welding strength plate of steel pipe thickness, its periphery is through processing, the planar annular that matches with O RunddichtringO, roughness is less than or equal to Ra12.5, the uniform through hole with matching with casing flange bolt hole of its outermost.
Preferably, O RunddichtringO is twice, and its diameter is greater than with 10%～15% of casing flange depth of groove, seal ring non-joint or only have 1 joint, and diameter should 9mm or 10mm, and selection matter should be selected butyronitrile or rubber.
Preferably, clamping bolt 1 is standard fasteners, and quantity and nominal diameter are pressed 1.5 times of plug carrying pressure maximum and determined, the two should match, and material should be selected stainless steel or Q345B, and quantity should be selected 4 integral multiple.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction; any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong to the protection domain of technical solutions of the utility model.Various not illustrating is construed as limiting flesh and blood of the present utility model.
Claims (2)
1. high―head penstock plug in a heavy caliber, it is characterized in that comprising a pair of left and right flanges (2,3) connecting by bolt (1), left flange (2) is the blue pipe of one-stage process, right flange (3) is flange plate, and right flange (3) card inner end is with crisscross gusset (4).
2. according to high―head penstock plug in heavy caliber claimed in claim 1, it is characterized in that having together or one above seal ring (5) on left and right flanges (2,3) interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223073.2U CN203823348U (en) | 2014-05-04 | 2014-05-04 | Large-diameter medium-high-water-head-pressure steel pipe end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223073.2U CN203823348U (en) | 2014-05-04 | 2014-05-04 | Large-diameter medium-high-water-head-pressure steel pipe end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823348U true CN203823348U (en) | 2014-09-10 |
Family
ID=51478849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420223073.2U Expired - Lifetime CN203823348U (en) | 2014-05-04 | 2014-05-04 | Large-diameter medium-high-water-head-pressure steel pipe end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203823348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215142A (en) * | 2021-12-21 | 2022-03-22 | 深圳市市政工程总公司 | Construction method for plugging large-diameter water pressing pipeline under limited condition |
-
2014
- 2014-05-04 CN CN201420223073.2U patent/CN203823348U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215142A (en) * | 2021-12-21 | 2022-03-22 | 深圳市市政工程总公司 | Construction method for plugging large-diameter water pressing pipeline under limited condition |
| CN114215142B (en) * | 2021-12-21 | 2024-04-05 | 深圳市政集团有限公司 | Plugging construction method for large-pipe-diameter pressurized water pipeline under limiting condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220518 Address after: 100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee after: State Grid Corporation of China Patentee after: State Grid Xinyuan Group Co.,Ltd. Patentee after: FENGMAN DAM RECONSTRUCTION ENGINEERING CONSTRUCTION BUREAU OF SONGHUAJIANG HYDROPOWER Co.,Ltd. Address before: 100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee before: State Grid Corporation of China Patentee before: STATE GRID XINYUAN Co.,Ltd. Patentee before: FENGMAN DAM RECONSTRUCTION ENGINEERING CONSTRUCTION BUREAU OF SONGHUAJIANG HYDROPOWER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |