CN207500468U - A kind of PRESSURE TESTING BLIND FLANGE for valve - Google Patents
A kind of PRESSURE TESTING BLIND FLANGE for valve Download PDFInfo
- Publication number
- CN207500468U CN207500468U CN201721355791.5U CN201721355791U CN207500468U CN 207500468 U CN207500468 U CN 207500468U CN 201721355791 U CN201721355791 U CN 201721355791U CN 207500468 U CN207500468 U CN 207500468U
- Authority
- CN
- China
- Prior art keywords
- hole
- valve
- pressure testing
- pressure
- blind 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 - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
A kind of PRESSURE TESTING BLIND FLANGE for valve, including pressure-bearing body and elastic sealing element, the pressure-bearing body is equipped with the mounting surface with its central axis, and the mounting surface is equipped with groove, and the elastic sealing element is embedded in the groove；The center of the elastic sealing element is equipped with first through hole, and the center of the pressure-bearing body is equipped with the second through-hole being connected with the first through hole；Screw thread is equipped in second through-hole, the utility model realizes the versatility of PRESSURE TESTING BLIND FLANGE, and reduces frock cost, improves production efficiency.
Description
Technical field
The utility model belongs to valve field, and in particular to a kind of PRESSURE TESTING BLIND FLANGE for valve.
Background technology
The pressure testing of valve is mainly using water pressure test method, and this method is that valve is placed on testing stand, valve passage
Both ends are sealed using PRESSURE TESTING BLIND FLANGE, apply pretightning force to it by the driving device on testing stand to compress blind plate, Ran Houcong
Aperture water inlet on the blind plate of side is suppressed, and is boosted to pressurize certain time after authorized pressure, then is carried out by the requirement of relevant criterion
It examines.
Existing PRESSURE TESTING BLIND FLANGE using O-ring seal, the structure be in metal blind plate end or Excircle machining seal groove, then
O-ring seal is packed into so as to be sealed with valve end or lumen contact.Since the pressure testing more options of butt welded end valve are in valve
It is carried out before door retaining wall on slope, after the completion of pressure testing, since the size of whole deck valve door is larger, the groove size of valve need to add on boring machine
Work, but Boring machine processing working hour is long, limits the raising of valve production efficiency.And the structure blind plate realizes that sealing needs valve end
Portion is finished for plane or end inner cavity surface, and process costs are high.
In consideration of it, it is necessary to design a kind of PRESSURE TESTING BLIND FLANGE for valve to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of PRESSURE TESTING BLIND FLANGEs for valve, realize the versatility of PRESSURE TESTING BLIND FLANGE,
And frock cost is reduced, improve production efficiency.
To achieve the above object, the technical solution that the utility model specifically provides is：A kind of PRESSURE TESTING BLIND FLANGE for valve,
Including pressure-bearing body and elastic sealing element, the pressure-bearing body is equipped with the mounting surface with its central axis, and the mounting surface is equipped with
Groove, the elastic sealing element are embedded in the groove；The center of the pressure-bearing body is equipped with first through hole, the elastic sealing element
Center be equipped with the second through-hole for being connected with the first through hole；Screw thread is equipped in the first through hole.
Further, the elastic sealing element is nylon sheet or polytetrafluoroethylene (PTFE).
Further, the groove and the elastic sealing element are circle.
Further, the first through hole includes stepped hole and mounting hole, and the diameter of the stepped hole is more than the straight of mounting hole
Diameter；The screw thread is arranged in the mounting hole；The diameter of second through-hole is more than the diameter of the stepped hole.
The beneficial technique effect that the utility model obtains is as follows：
First, the utility model is versatile, can largely reduce the quantity of PRESSURE TESTING BLIND FLANGE, frock cost and management is greatly reduced
Difficulty, and when valve is installed on pressure testing table, it is relatively low to the concentricity requirement of pressure testing table axis, it is easy for assemble or unload, improve examination
Press efficiency.
2nd, the utility model realizes valve and carries out pressure testing again after the completion of retaining wall on slope, and valve groove can be in vehicle
It is completed together when cutting processing valve end, reduces the process that Boring machine processing groove is utilized after complete machine pressure testing, shorten technological process,
Improve processing efficiency.
3rd, the elastic sealing element of the utility model can process one layer of removal or change due to squeezing for a long time and after seal failure
It is continuing with to another side, reduces operation and maintenance cost.
Description of the drawings
Fig. 1 is sectional view of the utility model for the PRESSURE TESTING BLIND FLANGE of valve；
Fig. 2 is stereogram of the utility model for the PRESSURE TESTING BLIND FLANGE of valve.
Specific embodiment
Structure and utility model content of the utility model for the PRESSURE TESTING BLIND FLANGE of valve are described with reference to Fig. 1 to 2.
A kind of PRESSURE TESTING BLIND FLANGE for valve, including pressure-bearing body 1, elastic sealing element 2, be arranged on pressure-bearing body 1 first
Through-hole 3 and the second through-hole 4 being arranged on elastic sealing element 2.
The pressure-bearing body 1 is equipped with the mounting surface 11 with its central axis.The mounting surface 11 is equipped with circular groove
12。
The elastic sealing element 2 is circular nylon sheet or polytetrafluoroethylene (PTFE), and the elastic sealing element 2 is arranged on described recessed
In slot 12.
The first through hole 3 includes the stepped hole 31 interconnected and mounting hole 32.The diameter of the stepped hole 31 is more than
The diameter of the mounting hole 32.Screw thread 33 is equipped in the mounting hole 32.
Second through-hole 4 is connected with the stepped hole 31, and the diameter of second through-hole 4 is more than the stepped hole 31
Diameter.
The operation principle of the utility model：
When valve with groove carries out the water pressure test, elastic sealing element 2 is mounted in groove 12, in pressure testing table pretightning force
Under the action of the more sharp end of groove is pressed into elastic sealing element 2, but not destroy it, then from the installation on the blind plate of side
32 water filling of hole is suppressed, and carries out the water pressure test, is reduced the process that Boring machine processing groove is utilized after complete machine pressure testing, is shortened technique stream
Journey improves processing efficiency.
On the other hand, elastic sealing element uses nylon material, and when water suction is swollen, it is easier between realization and valve
Sealing.
On the other hand, elastic sealing element 2 can process one layer of removal or change to another due to squeezing for a long time and after seal failure
Face is continuing with, and operation and maintenance is at low cost.
In conclusion the above is only the preferred embodiments of the present utility model only, should not the utility model be limited with this
Range.I.e. every simple equivalent changes and modifications made according to the utility model claims book and description all should
Still belong in the range of the utility model patent covers.
Claims (4)
1. a kind of PRESSURE TESTING BLIND FLANGE for valve, including pressure-bearing body and elastic sealing element, it is characterised in that：The pressure-bearing body is equipped with
With the mounting surface of its central axis, the mounting surface is equipped with groove, and the elastic sealing element is embedded in the groove；It is described
The center of pressure-bearing body is equipped with first through hole, and it is logical that the center of the elastic sealing element is equipped with second to be connected with the first through hole
Hole；Screw thread is equipped in the first through hole.
2. the PRESSURE TESTING BLIND FLANGE according to claim 1 for valve, it is characterised in that：The elastic sealing element is nylon sheet
Or polytetrafluoroethylene (PTFE).
3. the PRESSURE TESTING BLIND FLANGE according to claim 1 for valve, it is characterised in that：The groove and the elastic packing
Part is circle.
4. the PRESSURE TESTING BLIND FLANGE according to claim 1 for valve, it is characterised in that：The first through hole includes stepped hole
And mounting hole, the diameter of the stepped hole are more than the diameter of mounting hole；The screw thread is arranged in the mounting hole；Described second
The diameter of through-hole is more than the diameter of the stepped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355791.5U CN207500468U (en) | 2017-10-20 | 2017-10-20 | A kind of PRESSURE TESTING BLIND FLANGE for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355791.5U CN207500468U (en) | 2017-10-20 | 2017-10-20 | A kind of PRESSURE TESTING BLIND FLANGE for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207500468U true CN207500468U (en) | 2018-06-15 |
Family
ID=62501302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721355791.5U Expired - Fee Related CN207500468U (en) | 2017-10-20 | 2017-10-20 | A kind of PRESSURE TESTING BLIND FLANGE for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207500468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243546A (en) * | 2019-07-18 | 2019-09-17 | 中国铁建重工集团股份有限公司 | A kind of hinged seal test table of development machine |
-
2017
- 2017-10-20 CN CN201721355791.5U patent/CN207500468U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243546A (en) * | 2019-07-18 | 2019-09-17 | 中国铁建重工集团股份有限公司 | A kind of hinged seal test table of development machine |
| CN110243546B (en) * | 2019-07-18 | 2024-04-23 | 中国铁建重工集团股份有限公司 | Articulated sealing test bed of heading machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180615 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |