CN204878724U - Steel pipe internal diameter inflatable seal device - Google Patents
Steel pipe internal diameter inflatable seal device Download PDFInfo
- Publication number
- CN204878724U CN204878724U CN201520418489.4U CN201520418489U CN204878724U CN 204878724 U CN204878724 U CN 204878724U CN 201520418489 U CN201520418489 U CN 201520418489U CN 204878724 U CN204878724 U CN 204878724U
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- inflatable seal
- sealed
- pipe
- sealing head
- 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
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- Gasket Seals (AREA)
- Sealing Devices (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a pipe steel internal diameter inflatable seal device belongs to steel pipe detection area, and it is by the inflatable seal circle, and the guide ring is constituteed with sealed head, and sealed head is installed in the both sides of steel pipe, the sealed overhead recess that is provided with, the inflatable seal circle is place within the recess, and there is the through -hole recess bottom of sealed head, and inflatable seal circles and is provided with the air cock, the air cock passes through the through -hole of recess bottom to be connected with the trachea, and inflation back and steel pipe internal surface contact are aerifyd to the inflatable seal circle to reach sealed effect, sealed first anterior segment is equipped with the guide ring, and the sealed head of being convenient for gets into in the steel pipe.
Description
Technical field
The utility model relates to a kind of seal arrangement, specifically a kind of pipe diameter air inflation sealing device.
Background technique
In recent years along with complexity and the diversity of petroleum production, carbon steel inner liner stainless steel composite pipe comes into one's own gradually.This composite pipe adopts carbon steel tube be skin, with import or domestic high-quality Stainless Steel Tube for internal layer, is composited through special process.After carbon steel tube inner liner stainless steel pipe carries out compound, the continuity of inner liner stainless steel pipe degree of vacuum be checked.Inner diameter seal can only be used according to technological process and manufacture method, after steel pipe compound, occasionally there is pipe end internal lining pipe compound incomplete, thus pipe end internal diameter irregular, pipe end internal lining pipe circularity is poor, so the top pressure closure of degree of vacuum experiment requires to differ at seal clearance and works under the larger operating mode in gap.Although the words that the hydraulic pressure wide arc gap Sealing as used seals are also passable, require that pre-sealed hydraulic pressure is comparatively large, structure relative complex.
Model utility content
For solving the problem, the utility model provides a kind of good seal performance, and structure is simple, requires low pipe diameter air inflation sealing device to the operating technology of operator.
The technical solution of the utility model is as follows: a kind of pipe diameter air inflation sealing device comprises gas-flow closure circle, guide ring and sealing head, described sealing head is provided with groove, gas-flow closure circle is placed within groove, the bottom portion of groove of sealing head has through hole, gas-flow closure circle is provided with valve, described valve is connected with tracheae by the through hole of bottom portion of groove, contact with steel pipe internal-surface after gas-flow closure circle inflation, thus reach the effect of sealing, sealing head leading portion is equipped with guide ring, is convenient to sealing head and enters in steel pipe.
Accompanying drawing explanation
Fig. 1 is working state sectional drawing of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
In figure: steel pipe 11, sealing head 12, valve 13, charge and exhaust pipe 14, gas-flow closure circle 15, guide ring 16.
As shown in Figure 1, the technical solution of the utility model is as follows: the sealing head 12 being arranged on steel pipe 11 both sides, sealing head leading portion is equipped with guide ring 16, being convenient to sealing head enters in steel pipe, sealing head is provided with groove, gas-flow closure circle 15 is placed within groove, the bottom portion of groove of sealing head has through hole, gas-flow closure circle 15 is provided with valve 13, described valve 13 is connected with tracheae by the through hole of bottom portion of groove, contact with steel pipe internal-surface after gas-flow closure circle 15 inflation, thus reach the effect of sealing.Charge and exhaust pipe 14 one end is connected with vacuum pump, and one end is connected with pressure gauge, and after test accepts, gas-flow closure circle is relaxed one's efforts, and end socket exits steel pipe.
Personnel also can make equivalent variations or replacement under prerequisite of the present utility model, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (1)
1. a pipe steel internal diameter air inflation sealing device, it is characterized in that: comprise gas-flow closure circle, guide ring and sealing head, described sealing head is provided with groove, gas-flow closure circle is placed within groove, the bottom portion of groove of sealing head has through hole, and gas-flow closure circle is provided with valve, and described valve is connected with tracheae by the through hole of bottom portion of groove, contact with steel pipe internal-surface after gas-flow closure circle inflation, thus reaching the effect of sealing, sealing head leading portion is equipped with guide ring, is convenient to sealing head and enters in steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520418489.4U CN204878724U (en) | 2015-06-17 | 2015-06-17 | Steel pipe internal diameter inflatable seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520418489.4U CN204878724U (en) | 2015-06-17 | 2015-06-17 | Steel pipe internal diameter inflatable seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878724U true CN204878724U (en) | 2015-12-16 |
Family
ID=54823098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520418489.4U Expired - Fee Related CN204878724U (en) | 2015-06-17 | 2015-06-17 | Steel pipe internal diameter inflatable seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321837A (en) * | 2015-06-17 | 2017-01-11 | 番禺珠江钢管有限公司 | Steel pipe inner diameter inflation seal device |
-
2015
- 2015-06-17 CN CN201520418489.4U patent/CN204878724U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321837A (en) * | 2015-06-17 | 2017-01-11 | 番禺珠江钢管有限公司 | Steel pipe inner diameter inflation seal device |
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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: 20151216 Termination date: 20170617 |