CN202256036U - Sealing device for pressure test of pipeline - Google Patents
Sealing device for pressure test of pipeline Download PDFInfo
- Publication number
- CN202256036U CN202256036U CN2011204042912U CN201120404291U CN202256036U CN 202256036 U CN202256036 U CN 202256036U CN 2011204042912 U CN2011204042912 U CN 2011204042912U CN 201120404291 U CN201120404291 U CN 201120404291U CN 202256036 U CN202256036 U CN 202256036U
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- Prior art keywords
- right baffle
- bolt
- pipeline
- plate
- pressure testing
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- Expired - Lifetime
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- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 238000007789 sealing Methods 0.000 title claims abstract description 26
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model belongs to pressure test equipment field, concretely relates to a sealing device for pipeline pressure testing. The device includes the bolt that is provided with the through-hole in the axis direction, the cover is equipped with left baffle and the right baffle of external diameter and pressure testing pipeline's internal diameter looks adaptation on the bolt, is provided with expansion seal circle between left baffle and right baffle, lies in the right baffle outside on the bolt and is equipped with the nut with bolt threaded connection, screws the nut and makes left baffle and right baffle move in opposite directions to the extrusion expansion seal circle. The sealing device solves the problems of easy explosion and easy leakage when the simple plugging plate is adopted for sealing in the prior art, does not need to be welded on a working site, is operated in a tool type, is quickly installed or disassembled, and improves the working efficiency. The device simple structure, light in weight is convenient for transport, can conveniently apply to various job sites, and the device can repetitious usage, reduces the waste of raw and other materials, has practiced thrift the cost. Is suitable for popularization and application in the field of pressure test equipment.
Description
Technical field
The utility model belongs to the pressure test equipment field, is specifically related to a kind of packoff that is used for pipeline pressure test.
Background technology
Pipeline transportation extensively applies in oil, chemical industry, metallurgy and urban water supply, heating system, is undertaking the vital task of media such as process of conveying inflammable is explosive, high temperature, corrosion, and is therefore, more and more stricter for the reliability requirement as the pipeline of delivery vehicles.Pipeline pressure test is the project that every pipeline must be implemented before installation, guarantees that the pipeline of installing has higher reliability and security.
At present, during to pipeline pressure test, the mode that generally adopts the welded seal plate to seal to the sealing of pipe ends is when the welded seal plate; Accuracy requirement to welding is high, otherwise under pressure, seal pad is come off; Can't satisfy the pressure testing requirement, but because the line size problem, the welding technology difficulty is big; The efficient of manual welding is low, can't guarantee higher welding quality, and after accomplishing the pressure testing experiment, the seal pad difficulty of removing welding is big.
The utility model content
The utility model technical matters to be solved is: a kind of packoff that can fast assembling-disassembling in the pipeline pressure test process is provided.
The technical scheme that realizes the purpose employing of the utility model is: the packoff that is used for pipeline pressure test; Be included in axis direction and be provided with the bolt of through hole; Be set with the suitable right baffle-plate and the right baffle plate of internal diameter of external diameter and pressure testing pipeline on the said bolt, between right baffle-plate and right baffle plate, be provided with the Expansion sealing circle, on bolt, be positioned at the right baffle plate outside and be provided with the nut that is connected with bolt thread; The nut of screwing makes right baffle-plate and right baffle plate move toward one another, thus the extrusion expansion O-ring seal.
Further be, also be provided with support set between said right baffle-plate and the right baffle plate, the Expansion sealing snare is contained in the support set outside surface.
Further be that a side of the periphery of the outside surface of said support set, Expansion sealing circle is set with extruded tube.
The beneficial effect of the utility model is: be used for the packoff of pipeline pressure test, explosive when having solved the sealing of the simple and easy shutoff plate of former employing, the leakiness problem need not welded in the working site, and the tool-type operation, has improved work efficiency at Fast Installation or dismounting.This apparatus structure is simple, and weight is light, is convenient to transportation, can conveniently apply to various working sites, and this device can repeatedly use, and reduces raw-material waste, has practiced thrift cost.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model pressure testing system entrance pressure part-structure synoptic diagram;
Fig. 3 is the utility model pressure testing system dispensing pressure portion structural representation;
Pipe connecting structure synoptic diagram when Fig. 4 is the utility model pressure testing.
Mark among the figure: bolt 1, pressure testing pipeline 2, right baffle-plate 3, Expansion sealing circle 4, support set 5, extruded tube 6, right baffle plate 7, nut 8, through hole 9, three-way pipe 10, tensimeter 11, valve 12, test pump 13, switch 14, pipeline 15.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
The utility model belongs to the pressure test equipment field, is specifically related to a kind of packoff that is used for pipeline pressure test.As shown in Figure 1, be used for the packoff of pipeline pressure test, be included in the bolt 1 that axis direction is provided with through hole 9; Be set with the suitable right baffle-plate 3 and right baffle plate 7 of internal diameter of external diameter and pressure testing pipeline 2 on the said bolt 1; Between right baffle-plate 3 and right baffle plate 7, be provided with Expansion sealing circle 4,, on bolt 1, be positioned at right baffle plate 7 outsides and be provided with the nut 8 that is threaded with bolt 1; The nut 8 of screwing makes right baffle-plate 3 and right baffle plate 7 move toward one another, thus extrusion expansion O-ring seal 4.
When this device was put into pressure testing pipeline 2, the external diameter of right baffle-plate 3 and right baffle plate 7 was slightly less than the internal diameter of pressure testing pipeline 2, to make things convenient for putting into or taking out of this device.With instrument set bolt 1; Whole device can not rotated in rundown process; When the nut 8 that tights a bolt on 1, receive the effect of nut 8 extruding forces, right baffle-plate 3 and right baffle plate 7 move toward one another; Make Expansion sealing circle 4 between right baffle-plate 3 and the right baffle plate 7 after expansion that is squeezed, finally seal pressure testing pipeline 2.Shown in the axial location of bolt 1 be provided with and be used for test pump 13 and the through hole 9 that pressure testing pipeline 2 is communicated with, make the pressure source can be through through hole 9 entering pressure testing pipelines 2.The external diameter of said Expansion sealing circle 4 is slightly less than the internal diameter of pressure testing pipeline 2, and according to the performance of Expansion sealing circle 4, the spacing between the internal diameter of the external diameter of Expansion sealing circle 4 and pressure testing pipeline 2 is 0～5mm.
Position for better fixed expansion O-ring seal 4 also is provided with support set 5 between said right baffle-plate 3 and the right baffle plate 7, and Expansion sealing circle 4 is sleeved on support set 5 outside surfaces.Support set 5 is the position of fixed expansion O-ring seal 4 between right baffle-plate 3 and right baffle plate 7 effectively; It can be shifted after putting into pressure testing pipeline 2; When Expansion sealing circle 4 pressurizeds, its expansion direction is outside along the circumferencial direction of support set 5, better seals pressure testing pipeline 2.
One side of the periphery of the outside surface of said support set 5, Expansion sealing circle 4 is set with extruded tube 6.When tighting a bolt nut 8 on 1; Right baffle-plate 3 or right baffle plate 7 promote extruded tube 6; The direct extrusion expansion O-ring seal 4 of the end face of extruded tube 6, the extruding force that making tights a bolt provided in 1 o'clock more directly acts on Expansion sealing circle 4, makes the expansion effect of Expansion sealing circle 4 better; Sealing effectiveness is better, more fast pressure testing device is fixed in the mouth of pipe of pressure testing pipeline 2.
When the sealing device is used for pipeline pressure test:
Like Fig. 2, shown in Figure 3, at first packoff is packed in the mouth of pipe at pressure testing pipeline 2 two ends, then at the entrance pressure end of pressure testing pipeline 2 through three-way pipe 10 setting pressure tables 11, valve 12, test pump 13; The other end at pressure testing pipeline 2 connects tensimeter 11 and switch 14, during work, and first off switch 14; Open test pump 13, variable valve 12 is with controlled pressure, and pressure source gets into pressure testing pipeline 2 through the through hole on the packoff 9; Begin pressure testing pipeline 2 is exerted pressure, after accomplishing data recording, close test pump 13; Open switch 14, the pressure in the dispensing pressure testing pipeline 2 is accomplished the pressure testing experiment.
As need do pressure testing experiment simultaneously to many pressure testing pipelines, and as shown in Figure 4, the mouth of pipe of the pressure testing pipeline 2 of centre is connected with pipeline 15, go out to press a mouthful installation sealing device at the entrance pressure mouth of first pressure testing pipeline 2 and last root pressure testing pipeline 2.
Claims (3)
1. the packoff that is used for pipeline pressure test; It is characterized in that: be included in the bolt (1) that axis direction is provided with through hole (9); Be set with the suitable right baffle-plate (3) and the right baffle plate (7) of internal diameter of external diameter and pressure testing pipeline (2) on the said bolt (1); Between right baffle-plate (3) and right baffle plate (7), be provided with Expansion sealing circle (4); On bolt (1), be positioned at right baffle plate (7) outside and be provided with the nut (8) that is threaded with bolt (1), the nut of screwing (8) makes right baffle-plate (3) and right baffle plate (7) move toward one another, thus extrusion expansion O-ring seal (4).
2. the packoff that is used for pipeline pressure test as claimed in claim 1 is characterized in that: also be provided with support set (5) between said right baffle-plate (3) and the right baffle plate (7), Expansion sealing circle (4) is sleeved on support set (5) outside surface.
3. the packoff that is used for pipeline pressure test as claimed in claim 2 is characterized in that: a side of the periphery of the outside surface of said support set (5), Expansion sealing circle (4) is set with extruded tube (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204042912U CN202256036U (en) | 2011-10-21 | 2011-10-21 | Sealing device for pressure test of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204042912U CN202256036U (en) | 2011-10-21 | 2011-10-21 | Sealing device for pressure test of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256036U true CN202256036U (en) | 2012-05-30 |
Family
ID=46117260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204042912U Expired - Lifetime CN202256036U (en) | 2011-10-21 | 2011-10-21 | Sealing device for pressure test of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256036U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225725A (en) * | 2013-05-08 | 2013-07-31 | 中国海洋石油总公司 | Pipeline blind end plugging plug |
| CN103234093A (en) * | 2013-05-08 | 2013-08-07 | 中国海洋石油总公司 | Pipe plug at water injection end of pipeline |
| CN103697284A (en) * | 2013-12-18 | 2014-04-02 | 天津绿清管道科技股份有限公司 | Pressure test device for pipe fittings |
| CN104359623A (en) * | 2014-10-11 | 2015-02-18 | 江苏万盛铸造有限公司 | Sealing device for detecting airtightness of special elbow |
| CN104633278A (en) * | 2014-12-31 | 2015-05-20 | 华中科技大学 | Pressure tube pressure testing device capable of being disassembled and assembled rapidly |
| CN104977214A (en) * | 2015-06-30 | 2015-10-14 | 安源管道实业有限公司 | General piston-type pressure testing apparatus for steel-plastic composite pipe |
| CN105179871A (en) * | 2015-09-22 | 2015-12-23 | 浙江尚进电力科技有限公司 | Pipe hole blocking device |
| CN107907427A (en) * | 2017-12-29 | 2018-04-13 | 河南省第二建设集团有限公司 | A kind of pipeline pressure testing device and application method |
| CN108426120A (en) * | 2018-04-08 | 2018-08-21 | 新疆八钢铁股份有限公司 | Emergent pipeline plugging pig |
| CN112197608A (en) * | 2020-11-12 | 2021-01-08 | 贵州西能电力建设有限公司 | Expansion plug for condenser cooling pipe hydrostatic test and use method thereof |
| CN112344126A (en) * | 2019-08-08 | 2021-02-09 | 中国石油天然气股份有限公司 | Pipeline welding plugging device |
| CN114321736A (en) * | 2022-01-10 | 2022-04-12 | 深圳市民乐管业有限公司 | Pipeline pressure fluctuation testing machine capable of preventing leakage of pipe orifice |
| CN115258551A (en) * | 2022-07-22 | 2022-11-01 | 冰轮环境技术股份有限公司 | Pipe water blowing and pressure testing device with multi-station synchronous transposition function |
-
2011
- 2011-10-21 CN CN2011204042912U patent/CN202256036U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225725A (en) * | 2013-05-08 | 2013-07-31 | 中国海洋石油总公司 | Pipeline blind end plugging plug |
| CN103234093A (en) * | 2013-05-08 | 2013-08-07 | 中国海洋石油总公司 | Pipe plug at water injection end of pipeline |
| CN103697284A (en) * | 2013-12-18 | 2014-04-02 | 天津绿清管道科技股份有限公司 | Pressure test device for pipe fittings |
| CN103697284B (en) * | 2013-12-18 | 2015-07-29 | 天津绿清管道科技股份有限公司 | A kind of pipe pressure test device |
| CN104359623A (en) * | 2014-10-11 | 2015-02-18 | 江苏万盛铸造有限公司 | Sealing device for detecting airtightness of special elbow |
| CN104633278A (en) * | 2014-12-31 | 2015-05-20 | 华中科技大学 | Pressure tube pressure testing device capable of being disassembled and assembled rapidly |
| CN104977214B (en) * | 2015-06-30 | 2017-11-17 | 安源管道实业股份有限公司 | General purpose steel plastic composite piston type pressure testing device |
| CN104977214A (en) * | 2015-06-30 | 2015-10-14 | 安源管道实业有限公司 | General piston-type pressure testing apparatus for steel-plastic composite pipe |
| CN105179871A (en) * | 2015-09-22 | 2015-12-23 | 浙江尚进电力科技有限公司 | Pipe hole blocking device |
| CN107907427A (en) * | 2017-12-29 | 2018-04-13 | 河南省第二建设集团有限公司 | A kind of pipeline pressure testing device and application method |
| CN108426120A (en) * | 2018-04-08 | 2018-08-21 | 新疆八钢铁股份有限公司 | Emergent pipeline plugging pig |
| CN112344126A (en) * | 2019-08-08 | 2021-02-09 | 中国石油天然气股份有限公司 | Pipeline welding plugging device |
| CN112197608A (en) * | 2020-11-12 | 2021-01-08 | 贵州西能电力建设有限公司 | Expansion plug for condenser cooling pipe hydrostatic test and use method thereof |
| CN114321736A (en) * | 2022-01-10 | 2022-04-12 | 深圳市民乐管业有限公司 | Pipeline pressure fluctuation testing machine capable of preventing leakage of pipe orifice |
| CN115258551A (en) * | 2022-07-22 | 2022-11-01 | 冰轮环境技术股份有限公司 | Pipe water blowing and pressure testing device with multi-station synchronous transposition function |
| CN115258551B (en) * | 2022-07-22 | 2024-10-11 | 冰轮环境技术股份有限公司 | Pipe water blowing pressure testing device with multi-station synchronous transposition function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |