CN201387372Y - Sealing structure for pressure-testing head of hydraulic pressure tester for steel pipes - Google Patents
Sealing structure for pressure-testing head of hydraulic pressure tester for steel pipes Download PDFInfo
- Publication number
- CN201387372Y CN201387372Y CN200920019890U CN200920019890U CN201387372Y CN 201387372 Y CN201387372 Y CN 201387372Y CN 200920019890 U CN200920019890 U CN 200920019890U CN 200920019890 U CN200920019890 U CN 200920019890U CN 201387372 Y CN201387372 Y CN 201387372Y
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- China
- Prior art keywords
- pressure
- steel pipe
- communicated
- seal ring
- hole
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- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a sealing structure for a pressure-testing head of a hydraulic pressure tester for steel pipes, which comprises the pressure-testing head fixed on a base, the pressure-testing head is provided with a steel pipe-inserting hole, the base is provided with a high-pressure water channel which is communicated with the steel pipe-inserting hole, one side of the pressure-testing head which is close to the high-pressure water channel is provided with a seal ring-mounting hole communicated with the steel pipe-inserting hole and a water inlet communicated with the seal ring-mounting hole, an elastic seal ring is mounted in the seal ring-mounting hole, and is retained in the seal ring-mounting hole by a seal ring gland bush fixed on the pressure-testing head, the seal ring gland bush is provided with a central hole and a side hole, the central hole is communicated with the steel pipe-inserting hole and the high-pressure water channel, and the side hole is communicated with the water inlet and the high-pressure water channel. The utility model has the following advantages: the seal ring can not be easily injured, the cost of the hydraulic pressure test is low, and the efficiency of the hydraulic pressure test is high.
Description
Technical field
The utility model relates to a kind of hermetically-sealed construction of steel pipe hydrostatic tester pressure text head.
Background technology
At present, the sealing means of steel pipe hydrostatic tester pressure text head and steel pipe is an end seal, and when doing the hydraulic testing, the hydrostatic testing machine pressure text head advances, and the O-ring seal that is contained in the pressure text head is pressed closer on the end face of steel pipe.Above-mentioned sealing means need bigger pressure, otherwise sealing effectiveness is bad, and in the process that holds out against, the end face of steel pipe is big to the damage of O-ring seal, and it is frequent to cause O-ring seal to be changed, and causes the cost increasing of the hydraulic testing and the reduction of hydraulic test efficiency.
The utility model content
The technical problems to be solved in the utility model is at above-mentioned deficiency, and not easy damaged of a kind of O-ring seal is provided, the hermetically-sealed construction of the steel pipe hydrostatic tester pressure text head that the little and hydraulic test efficiency of the cost of the hydraulic testing is high.
In order to solve the problems of the technologies described above, the utility model provides a kind of hermetically-sealed construction of steel pipe hydrostatic tester pressure text head of following structure, comprise the pressure text head that is fixed on the pedestal, pressure text head is provided with the steel pipe patchhole, pedestal is provided with the water under high pressure passage, the water under high pressure passage is communicated with the steel pipe patchhole, its design feature is: described pressure text head is provided with and steel pipe patchhole communication seals circle mounting hole and the inlet opening that is communicated with the O-ring seal mounting hole near a side of water under high pressure passage, in the O-ring seal mounting hole elastic seal ring is housed, elastic seal ring is limited in the O-ring seal mounting hole by the O-ring seal gland that is fixed on the pressure text head, the O-ring seal gland is provided with core hole and side opening, the core hole is communicated with steel pipe patchhole and water under high pressure passage, and side opening is communicated with inlet opening and water under high pressure passage.
Pressure text head adopts the use testing process of steel pipe hydrostatic tester of above-mentioned hermetically-sealed construction as follows: the pressure text head of steel pipe hydrostatic tester is advanced, inject an end of steel pipe and insert in the elastic seal ring from the steel pipe patchhole, starting water supply installation then makes water under high pressure enter the water under high pressure passage, a water under high pressure part enters in the O-ring seal mounting hole by side opening on the O-ring seal gland and the inlet opening on the pressure text head, elastic seal ring plays sealing function being close on the outside surface of steel pipe under the effect of hydraulic pressure; Another part water under high pressure enters in the steel pipe by the core hole on the O-ring seal gland, steel pipe is carried out hydraulic pressure detect; After detection finishes, stop for water under high pressure, elastic seal ring resilience return makes the pressure text head of steel pipe hydrostatic tester retreat into virgin state, and one-time detection just is through with.
By above-mentioned narration to testing process, can learn, the utility model adopts axial face seal to substitute butt-end packing of the prior art, the O-ring seal damage of having avoided butt-end packing to cause because of the extruding that exists O-ring seal, greatly reduce the replacing frequency of O-ring seal, therefore, the utlity model has not easy damaged of O-ring seal, the little and high advantage of hydraulic test efficiency of the cost of the hydraulic testing.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
Accompanying drawing is a user mode structural representation of the present utility model.
Embodiment
The hermetically-sealed construction of steel pipe hydrostatic tester pressure text head as shown in drawings, comprise the pressure text head 2 that is fixed on the pedestal 1, pressure text head 2 is provided with steel pipe patchhole 3, pedestal 1 is provided with water under high pressure passage 4, water under high pressure passage 4 is communicated with steel pipe patchhole 3, pressure text head 2 is provided with and steel pipe patchhole 3 communication seals circle mounting holes 5 and the inlet opening 6 that is communicated with O-ring seal mounting hole 5 near a side of water under high pressure passages 4, elastic seal ring 7 is housed in the O-ring seal mounting hole 5, elastic seal ring 7 is limited in the O-ring seal mounting hole 5 by the O-ring seal gland 8 that is fixed on the pressure text head 2, be fitted with detected steel pipe 11 in the elastic seal ring 7, O-ring seal gland 8 is provided with core hole 9 and side opening 10, core hole 9 is communicated with steel pipe patchhole 3 and water under high pressure passage 4, and side opening 10 is communicated with inlet opening 6 and water under high pressure passage 4.
Claims (1)
1. the hermetically-sealed construction of a steel pipe hydrostatic tester pressure text head, comprise the pressure text head (2) that is fixed on the pedestal (1), pressure text head (2) is provided with steel pipe patchhole (3), pedestal (1) is provided with water under high pressure passage (4), water under high pressure passage (4) is communicated with steel pipe patchhole (3), it is characterized in that: described pressure text head (2) is provided with O-ring seal mounting hole (5) that is communicated with steel pipe patchhole (3) and the inlet opening (6) that is communicated with O-ring seal mounting hole (5) near a side of water under high pressure passage (4), elastic seal ring (7) is housed in the O-ring seal mounting hole (5), elastic seal ring (7) is limited in the O-ring seal mounting hole (5) by the O-ring seal gland (8) that is fixed on the pressure text head (2), O-ring seal gland (8) is provided with core hole (9) and side opening (10), core hole (9) is communicated with steel pipe patchhole (3) and water under high pressure passage (4), and side opening (10) is communicated with inlet opening (6) and water under high pressure passage (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920019890U CN201387372Y (en) | 2009-03-27 | 2009-03-27 | Sealing structure for pressure-testing head of hydraulic pressure tester for steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920019890U CN201387372Y (en) | 2009-03-27 | 2009-03-27 | Sealing structure for pressure-testing head of hydraulic pressure tester for steel pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201387372Y true CN201387372Y (en) | 2010-01-20 |
Family
ID=41579906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920019890U Expired - Fee Related CN201387372Y (en) | 2009-03-27 | 2009-03-27 | Sealing structure for pressure-testing head of hydraulic pressure tester for steel pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201387372Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915647A (en) * | 2010-08-25 | 2010-12-15 | 天津双街钢管有限公司 | End face seal pressure test head device of hydraulic pressure testing machine |
| CN103791089A (en) * | 2014-01-22 | 2014-05-14 | 青岛恒基泰机电科技有限公司 | Steel tube end seal ring and sealing device |
| CN105067444A (en) * | 2015-08-04 | 2015-11-18 | 新兴铸管股份有限公司 | Supercharging test apparatus and use method thereof |
| CN105675386A (en) * | 2016-03-09 | 2016-06-15 | 南通永大管业股份有限公司 | Sealed pressurizing device for hydraulic press |
| CN107144473A (en) * | 2017-07-03 | 2017-09-08 | 宁波友宁钢管有限公司 | Pipe hydraulic pressure detection device |
-
2009
- 2009-03-27 CN CN200920019890U patent/CN201387372Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915647A (en) * | 2010-08-25 | 2010-12-15 | 天津双街钢管有限公司 | End face seal pressure test head device of hydraulic pressure testing machine |
| CN101915647B (en) * | 2010-08-25 | 2011-09-14 | 天津双街钢管有限公司 | End face seal pressure test head device of hydraulic pressure testing machine |
| CN103791089A (en) * | 2014-01-22 | 2014-05-14 | 青岛恒基泰机电科技有限公司 | Steel tube end seal ring and sealing device |
| CN103791089B (en) * | 2014-01-22 | 2016-06-08 | 青岛中瑞泰软控技术有限公司 | A kind of steel tube end part sealing-ring and tightness system |
| CN105067444A (en) * | 2015-08-04 | 2015-11-18 | 新兴铸管股份有限公司 | Supercharging test apparatus and use method thereof |
| CN105067444B (en) * | 2015-08-04 | 2017-07-04 | 新兴铸管股份有限公司 | Pressurization test set and its application method |
| CN105675386A (en) * | 2016-03-09 | 2016-06-15 | 南通永大管业股份有限公司 | Sealed pressurizing device for hydraulic press |
| CN107144473A (en) * | 2017-07-03 | 2017-09-08 | 宁波友宁钢管有限公司 | Pipe hydraulic pressure detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20130327 |