CN201561892U - Pressure block plate for automatically maintaining sealing property - Google Patents
Pressure block plate for automatically maintaining sealing property Download PDFInfo
- Publication number
- CN201561892U CN201561892U CN200920164868XU CN200920164868U CN201561892U CN 201561892 U CN201561892 U CN 201561892U CN 200920164868X U CN200920164868X U CN 200920164868XU CN 200920164868 U CN200920164868 U CN 200920164868U CN 201561892 U CN201561892 U CN 201561892U
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- Prior art keywords
- sealing
- piston
- pressure
- block plate
- closure plate
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 36
- 238000012360 testing method Methods 0.000 claims abstract description 26
- 230000000630 rising effect Effects 0.000 abstract description 5
- 230000001788 irregular Effects 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a pressure block plate for automatically maintaining the sealing property, which has the structure that the two sides of a cylinder single-plate-type pressurizing block plate are simultaneously processed with wide concave-shaped sealing grooves with different specifications, and the sealing grooves are sealed with a sealing rubber ring and a port of a tested valve test piece; a valve is also designed with the concave-shaped sealing groove and the sealing rubber ring which are sealed with the other port of the tested valve test piece. The pressure block plate has simple structure and convenient assembly and disassembly operation of the experiment valve, ensures the pressurizing tests of various valves to be smoothly carried out, and is low in manufacturing cost and wide in applicability. The pressure block plate is automatically sealed with the test piece along with the rising pressure, thus enhancing the sealing property. The pressure block plate not only is convenient for connection of irregular ports, but also can be reused, thus serving multiple purposes and improving the working efficiency.
Description
Technical field
The utility model relates to the sealing closure plate that a kind of pressure test is used.Especially a kind of pressure closure plate of keeping sealing automatically.
Background technology
General boilers and pressure vessel pipeline and parts thereof for guaranteeing safety, all will pass through acceptance procedures such as pressure test detection before installing and using.In carrying out pressure test, the bound closure plate of using a kind of sealed valve and pipe head.Closure plate in the past mostly is one-board, often adopts flange connection or external pressure to hold out against.For example: the bulge test of high pressure welded type valve just belongs to external pressure and holds out against, the general clamp device that adopts passes through closure plate, the two ends of valve are pressurizeed hold out against, form the end sealing, connect pressuring pump again and carry out bulge test, in the operation, the pretightning force the when sealing of testpieces and closure plate will be leaned on clamping is all the time kept, and this just requires the pretightning force in early stage to want enough big, otherwise, along with the increase of valve internal pressure, pressure is by the closure plate of suppressing at two ends, and the reverse top power of clamp device is also being increased gradually, at this moment, just may make the closure plate at valve two ends, produce, cause the destruction of valve end sealing to outer displacement.The appearance of this phenomenon often causes doing over again of work, and danger close, and is particularly important in high-potting.
The utility model content
The purpose of this utility model provides a kind ofly can keep sealing automatically with the rising of pressure, the connection of convenient irregular port, and realize that as far as possible a closure plate cooperates the suitable requirement of plurality of specifications valve, effectively reduces the suppressing of deployment cost of closure plate and uses closure plate.
Technical solution adopted in the utility model is:
Utilize hydraulic principle, the anisometric hydraulic piston of end area with understanding the phenomenon that moves to small size one end under the pressure, is used for the design pressure test with sealing closure plate.According to test specimen specifications design piston and piston cylinder size, utilize piston or piston cylinder double as to suppress the sealing closure plate simultaneously, be communicated with plunger shaft and the media implementation pressure of suppressing in the test specimen chamber again.Rising with bulge test pressure, piston or piston cylinder are in the ratio of the sealed at both ends area difference of intrinsic sealing closure plate, produce the displacement kinetic energy of corresponding size and Orientation, when being out of shape, the stressed generation of stress frame just can compensate the deflection that stressed steelframe produces automatically, thus the purpose that the sealing of realization closure plate and valve port is maintained.In addition, adopt wide groove to add the seal form of flexible rubber ring to seal form.According to the different size test specimen, design the composite seal closure plate of compatible many specifications again.Realize the purpose that connection, repeated use and a plate of irregular port are used more.
Architectural feature is: the right cylinder one-board is suppressed closure plate 13 two sides and is processed with the wide spill seal groove 3 of different size simultaneously, form sealing with an O-ring seal 5 and a port being examined valve test specimen 8, also designing on the piston 1 has wide spill seal groove 3 and O-ring seal 5, and forms sealing with another port of being examined valve test specimen 8.
Be provided with pressure compensation opening 7 on the piston 1 between the different size seal groove.
Be processed with simultaneously on piston 1 and the piston bush 2 and suppress medium and enter hole 4.
Advantage of the present utility model:
(1) the utility model is simple in structure, and carrying out smoothly of all kinds of valve bulge tests guaranteed in the mounting or dismounting operation of convenient experiment valve, and cheap for manufacturing cost, and applicability is wide.
(2) between the utility model and test specimen, can keep sealing automatically, strengthen sealing property with the rising of pressure.
(3) connection of the not only convenient irregular port of the utility model but also reusable, the many usefulness of a plate have improved work efficiency, have also created possibility for simplification apparatus for fastening, minimizing human input simultaneously.
Description of drawings
Accompanying drawing 1: the welded type valve is suppressed the platform synoptic diagram.
Accompanying drawing 2: the schematic perspective view of sealing closure plate.
Accompanying drawing 3: the sealing closure plate diagrammatic cross-section of duty.
Accompanying drawing 4: the one-board of duty is suppressed the closure plate diagrammatic cross-section.
Shown in the figure: 1, piston 2, piston bush 3, wide spill seal groove 4, suppress that medium advances hole 5, O-ring seal 6, piston seal groove 7, pressure compensation opening 8, examined valve test specimen 9, stressed steelframe 10, stayed mast 11, top power bar 12, the power source 13 of top power, one-board suppress closure plate.
Embodiment
Below with welded type valve pressure test synoptic diagram, the structure of this closure plate is elaborated.
Stressed steelframe 9 and stayed mast 10 combinations are surrounded and are formed a framework, and the power source 12 of top power is connected on the stressed steelframe 9, and output top power presses down one-board by top power bar 11 and suppresses closure plate 13.One-board is suppressed the wide spill seal groove 3 of design and an O-ring seal 5 and a port formation sealing being examined valve test specimen 8 on the closure plate 13, and pressure passed to piston 1 by 8, also design on 1 wide spill seal groove 3 and O-ring seal 5 are arranged, and form sealing with another port of being examined valve test specimen 8, outside the piston 1 is that piston bush 2,1 can move axially in 2.Piston bush 2 is connected with the stressed steelframe 9 of the other end, and when suppressing, the 1 and 2 interior thrusts that produce are limited by 9 and 10 frameworks that form.Piston seal groove 6 can be processed arbitrarily on 1 and 2, but generally processes on 1 for convenient.Pressure compensation opening 7 is pressure and designing in the balance piston chamber during with plate at many specifications, and its processing is on the piston 1 between the different size seal groove.Suppress medium and enter hole 4 and process simultaneously on 1 and 2, it connects plunger shaft and is inspected the part chamber.
Suppress the structural design of closure plate 13 for one-board, it is a cylinder component of processing the different size seal groove on the two sides simultaneously, the version of its seal groove is identical with the seal groove of corresponding movable sealing closure plate, also adopts wide groove to add the seal form of flexible rubber ring.
Again with welded type valve pressure test synoptic diagram, the principle of work of this closure plate is done some explanations below.
Piston 1 piston bush 2 of packing into is realized an annular seal space by piston seal groove 6 and interior airtight and watertight padding thereof.Piston 1 adds fluid sealant circle 5 and is inspected part port 8 another annular seal spaces of realization by seal groove 3.Because the floorage Different Diameter of two annular seal spaces, when the medium with pressure entered two annular seal spaces simultaneously through entering hole 4, piston 1 is oriented was examined the trend that valve test specimen port 8 moves.The power of this trend will become with the rising of pressure greatly, guarantee that effectively piston 1 does not separate, seals and be not destroyed with being inspected between the part port 8.Reach the displacement of stressed steelframe 9 stress deformations of automatic compensation, kept the purpose of sealing.Piston 1 has been processed plurality of specifications with piston bush 2 consubstantialities, can effectively cater to the requirement that different size is inspected part.When the effect of pressure compensation opening 7 is to use other specification sealing pair, the effect of the corresponding specification sealing pair of self-poise two ends pressure.
Claims (3)
1. pressure closure plate of keeping sealing automatically, comprise piston (1), piston bush (2), O-ring seal (5) and closure plate, it is characterized in that: the right cylinder one-board is suppressed closure plate (13) two sides and is processed with the wide spill seal groove of different size (3) simultaneously, and O-ring seal (5) forms sealing with a port being examined valve test specimen (8), also designing on the piston (1) has wide spill seal groove (3) and O-ring seal (5), and forms sealing with another port of being examined valve test specimen (8).
2. the pressure closure plate of keeping sealing automatically according to claim 1 is characterized in that: go up between the different size seal groove at piston (1) and be provided with pressure compensation opening (7).
3. the pressure closure plate of keeping sealing automatically according to claim 1 is characterized in that: be processed with simultaneously on piston (1) and the piston bush (2) and suppress medium and enter hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920164868XU CN201561892U (en) | 2009-11-20 | 2009-11-20 | Pressure block plate for automatically maintaining sealing property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920164868XU CN201561892U (en) | 2009-11-20 | 2009-11-20 | Pressure block plate for automatically maintaining sealing property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561892U true CN201561892U (en) | 2010-08-25 |
Family
ID=42627040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920164868XU Expired - Fee Related CN201561892U (en) | 2009-11-20 | 2009-11-20 | Pressure block plate for automatically maintaining sealing property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201561892U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034483A (en) * | 2014-06-04 | 2014-09-10 | 成都来宝石油设备有限公司 | Sealing plug for valve pressure-proof sealing test |
| CN108151975A (en) * | 2018-02-01 | 2018-06-12 | 福建省长乐市华拓五金有限公司 | Tap air-tightness detection device |
| CN112326439A (en) * | 2020-09-29 | 2021-02-05 | 天津市神州通钢管有限公司 | Hydraulic testing machine for petroleum casing pipe |
-
2009
- 2009-11-20 CN CN200920164868XU patent/CN201561892U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034483A (en) * | 2014-06-04 | 2014-09-10 | 成都来宝石油设备有限公司 | Sealing plug for valve pressure-proof sealing test |
| CN108151975A (en) * | 2018-02-01 | 2018-06-12 | 福建省长乐市华拓五金有限公司 | Tap air-tightness detection device |
| CN112326439A (en) * | 2020-09-29 | 2021-02-05 | 天津市神州通钢管有限公司 | Hydraulic testing machine for petroleum casing pipe |
| CN112326439B (en) * | 2020-09-29 | 2023-02-28 | 天津市神州通钢管有限公司 | Hydraulic testing machine for petroleum casing pipe |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20181120 |