CN205719802U - A kind of large-diameter pipe self-energized seal water test unit - Google Patents
A kind of large-diameter pipe self-energized seal water test unit Download PDFInfo
- Publication number
- CN205719802U CN205719802U CN201620495578.3U CN201620495578U CN205719802U CN 205719802 U CN205719802 U CN 205719802U CN 201620495578 U CN201620495578 U CN 201620495578U CN 205719802 U CN205719802 U CN 205719802U
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- China
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- cover plate
- inner cover
- threaded inner
- long bolt
- rubber seal
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Abstract
The utility model discloses a kind of large-diameter pipe self-energized seal water test unit, including threaded inner cover plate, outer cover plate, rubber seal, double end long bolt, outer nut and backing plate, it is characterized in that, rubber seal is loaded in threaded inner cover plate, threaded inner cover plate is arranged on one end of the heavy caliber thick wall pipe joint of drum, it is directed at and presses rubber seal, one end of double end long bolt is connected with threaded inner cover plate, the other end of double end long bolt installs outer cover plate, outer cover plate acts against another outer end of heavy caliber thick wall pipe joint, outer cover plate is fixed by backing plate and outer nut.The advantages such as it is reliable that this utility model has sealing, simple in construction, and convenient disassembly can reuse, cost-effective, highly versatile.
Description
Technical field
This utility model relates to a kind of for boiler-steam dome common downcomer upper big mouth footpath thick-walled pipe self-energized seal hydraulic pressure
Assay device, belongs to boiler technology field.
Background technology
The union piece that common downcomer pipe joint on boiler-steam dome is commonly used on boiler product, it is overall with drum
When carrying out the water pressure test, existing most domestic producer uses and seals in inwall or end face welding on pipe joint Φ 470 × 85
Plate or outer shrouding seal, then carry out the water pressure test, after the water pressure test is qualified, use gas cutting to cut off shrouding, carry out polishing or
Groove chamfering, operation is various, processing difficulties, and the cycle is long, and efficiency is low, and shrouding can only first use, take material.For solving this
A difficult problem, our specialized designs is a kind of for the boiler-steam dome common downcomer upper big mouth footpath thick-walled pipe self-energized seal water pressure test
Device, achieves satisfied effect in repeatedly engineer testing, sealing, versatility and convenience, shortens manufacture week simultaneously
Phase.
Utility model content
To achieve these goals, this utility model provides a kind of thick for boiler-steam dome common downcomer upper big mouth footpath
Wall pipe self-energized seal water test unit.
The utility model is achieved like this.A kind of large-diameter pipe self-energized seal water test unit, including band spiral shell
Stricture of vagina inner cover plate, outer cover plate, rubber seal, double end long bolt, outer nut and backing plate, is characterized in that, rubber seal is loaded on band
In screw thread inner cover plate, threaded inner cover plate is arranged on one end of the heavy caliber thick wall pipe joint of drum, is directed at and to press rubber close
Seal, one end of double end long bolt is connected with threaded inner cover plate, and the other end of double end long bolt installs outer cover plate, outer cover plate top
Leaning against another outer end of heavy caliber thick wall pipe joint, outer cover plate is fixed by backing plate and outer nut.
Of the present utility model have the technical effect that have employed this device carries out the water pressure test after, deducted shrouding blanking, added
The multiple working procedures such as work, welding, gas cutting, polishing；Sealing property is stable, uses reliable, and applied widely, efficiency is high, simple in construction
Compact, easy to operate, low cost of manufacture, service life is long, high safety, and rubber seal can be made to reach good self sealss shape
State, to complete the water pressure test process of whole drum.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1. handle 2. threaded inner cover plate 3. rubber seal 4. double end long bolt 5. outer cover plate in the drawings
6. backing plate 7. outer nut 8. heavy caliber thick wall pipe joint 9. drum outer wall 10. drum inwall.
Detailed description of the invention
Large-diameter pipe self-energized seal water test unit is as it is shown in figure 1, include handle 1, threaded inner cover plate 2, rubber
Sealing ring 3, double end long bolt 4, outer cover plate 5, backing plate 6, outer nut 7 etc., rubber seal 3 is loaded in threaded inner cover plate 2, band
Screw thread inner cover plate 2 is arranged on one end of the heavy caliber thick wall pipe joint 8 of drum, is directed at and presses rubber seal 3, the long spiral shell of double end
One end of bar 4 is connected with threaded inner cover plate 2, and the other end of double end long bolt 4 installs outer cover plate 5, and outer cover plate 5 acts against big mouth
Another outer end of footpath thick-walled pipe joint 8, outer cover plate 5 is fixed by backing plate 6 and outer nut 4.
Installation process is as follows, before drum Hydrostatic test, rubber seal 3 is loaded in threaded inner cover plate 2, then
Threaded inner cover plate is arranged on heavy caliber thick wall pipe joint 8 one end of drum by hand-held handle, is directed at and presses rubber seal
3, the other end of heavy caliber thick wall pipe joint 8, the good pad of the outer pad of outer cover plate 5 is then acted against by 4 outer cover plates 5 of double end long bolt
Plate 6, and outer nut 7 is enclosed within double end long bolt 4, tighten, precompressed rubber seal 3, tentatively reach to seal in big pipe joint 8
End face.After water flowing pressure testing starts, along with defined water pressure test value increase, the pressure that rubber seal 3 is born also with
Increase, rubber swelling amount strengthen, sealing effectiveness reaches, i.e. this structure produce self-energized seal.After the water pressure test completes, put
Water, unclamps outer nut 7, dismantles this device, takes out threaded inner cover plate 2.
Claims (1)
1. a large-diameter pipe self-energized seal water test unit, including threaded inner cover plate, outer cover plate, rubber seal,
Double end long bolt, outer nut and backing plate, is characterized in that, rubber seal is loaded in threaded inner cover plate, and threaded inner cover plate is pacified
It is contained in one end of the heavy caliber thick wall pipe joint of drum, is directed at and presses rubber seal, one end of double end long bolt and band spiral shell
Stricture of vagina inner cover plate connects, and the other end of double end long bolt installs outer cover plate, and outer cover plate acts against another of heavy caliber thick wall pipe joint
Outer end, outer cover plate is fixed by backing plate and outer nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620495578.3U CN205719802U (en) | 2016-05-28 | 2016-05-28 | A kind of large-diameter pipe self-energized seal water test unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620495578.3U CN205719802U (en) | 2016-05-28 | 2016-05-28 | A kind of large-diameter pipe self-energized seal water test unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205719802U true CN205719802U (en) | 2016-11-23 |
Family
ID=57299806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620495578.3U Active CN205719802U (en) | 2016-05-28 | 2016-05-28 | A kind of large-diameter pipe self-energized seal water test unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205719802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145652A (en) * | 2019-05-13 | 2019-08-20 | 哈尔滨锅炉厂有限责任公司 | Channel hydraulic pressure end cover structure |
-
2016
- 2016-05-28 CN CN201620495578.3U patent/CN205719802U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145652A (en) * | 2019-05-13 | 2019-08-20 | 哈尔滨锅炉厂有限责任公司 | Channel hydraulic pressure end cover structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |