CN204062316U - The dual-purpose bellows wiper of shutoff pigging - Google Patents
The dual-purpose bellows wiper of shutoff pigging Download PDFInfo
- Publication number
- CN204062316U CN204062316U CN201420455701.XU CN201420455701U CN204062316U CN 204062316 U CN204062316 U CN 204062316U CN 201420455701 U CN201420455701 U CN 201420455701U CN 204062316 U CN204062316 U CN 204062316U
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- China
- Prior art keywords
- wiper
- shutoff
- dual
- pigging
- air bag
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Abstract
The utility model relates to the dual-purpose bellows wiper of a kind of shutoff pigging, body is made up of circular arc head and column capsule skin, air bag and packing are set in body, air bag is communicated with one end of inflation line, the other end of inflation line stretches out body, the end signalization generator cover body of body, signal generator is arranged in cover body; The both ends of the surface of body are provided with the oil-filled hole of ventilation.The utility model is easy to install, and safe construction, reduces cost, practical, is easy to apply.
Description
Technical field
The utility model relates to a kind of conveyance conduit supplementary equipment, particularly relates to the dual-purpose bellows wiper of a kind of shutoff pigging, is specially adapted to the pipeline of long distance delivery oil and petroleum products.
Background technique
In the pipeline of long distance delivery oil and petroleum products, often run into the pipeline that needs to change several meters long damages or install the work such as elbow, threeway, valve additional.Although before operation, crude oil most of in pipeline being pumped, because pipeline is uneven, bends, in pipeline, still have part crude oil and gas mixture, when running into naked light instantaneously, detonation, explosive accident can occur.
As can not be in advance gas mixture in pipeline cut off in work progress, cannot safe construction.During prior art construction, to change or the hole of two DN300 is respectively opened, to install bag-type blockage device and flashboard, to stop gas mixture in, 3 meters, pipeline both sides of additional equipment.After having constructed, from hole, take out bag-type blockage device and flashboard, blocking the hole of four DN300 with flange.Such construction, adds pipeline perforate number, adds workload.
Along with the application of high tensile steel on oil transport pipeline, fuel transfer pressure mentions 10Mpa by the 4.5Mpa in past.Requiring that the regular maintenance of petroleum pipeline has also brought up to new level, in order to ensure the interior stress balance of steel pipeline, the petroleum pipeline come into operation reducing or not perforate as far as possible.But in order to the needs of need of production and repairing, sometimes have to carry out disconnected pipe work, therefore can reduce fracture two STH, can reach again that to cut off gas mixture be the technical barrier that related domain is thirsted for solving.
Model utility content
The utility model, for above-mentioned problems of the prior art, provides the dual-purpose bellows wiper of a kind of shutoff pigging, and solving pipeline in prior art is cut off the many problems of gas mixture perforate, and the utility model improves intensity and sealing effect.
The technical solution of the utility model is as follows:
Body is made up of circular arc head and column capsule skin, and arrange air bag and packing in body, air bag is communicated with one end of inflation line, and the other end of inflation line stretches out body, the end signalization generator cover body of body, and signal generator is arranged in cover body; The both ends of the surface of body are provided with the oil-filled hole of ventilation.
Described air bag arranges two, and air bag is the form of the foetus shape in automobile.
Two described air bags are arranged on apart from circular arc head edge 300 mm and 700 mm places.
Described air bag diameter 200mm.
Described packing is high-density sponge layer.
The outer surface of described body is circumferentially provided with sealing strip.
Described sealing strip is apart from circular arc head edge 300mm, and sealing strip is made up of 4 wide 60 mm soft rubber bars, is spaced apart 30 mm between adjacent two soft rubber bars.
Described column capsule skin diameter 5mm less of conveyance conduit inner diameter.
Described inflation line length 1200mm, air valve is installed in the end that inflation line stretches out body.
The utility model has the advantages of as follows:
1, column capsule skin diameter about 5mm less of conveyance conduit inner diameter, is conveniently installed to inside steel pipe in workplace.When deployed, under the bulging of air bag, be tightly attached on the madial wall of steel pipe, play sealing and frictional resistance effect.
2, four circumferential flexible glue bars form sealing strips, and when air bag expands and is close to steel pipe madial wall, sealing strip is closely attached on internal diameter of the pipeline, crude oil and gas mixture and construction interface are kept apart, reach safe construction.
3, without the need to many places perforate on pipeline, cost is reduced, practical, be easy to apply.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram of the present utility model.
Fig. 2 is end construction schematic diagram of the present utility model.
Fig. 3 is the utility model internal cross section structural representation.
Fig. 4 is using state schematic diagram of the present utility model.
In figure, 1, sealing strip, 2, oil-filled hole of ventilating, 3, cover body, 4, inflation line, 5, air bag, 6, packing, 7, body, 8, pipeline, arrow represents oily flow path direction.
Embodiment
The utility model, with reference to accompanying drawing, in conjunction with specific embodiments, is described in detail as follows.
Embodiment
As Figure 1-3, body 7 is made up of circular arc head and column capsule skin, column capsule skin diameter 5mm less of conveyance conduit 8 inner diameter; Arrange air bag 5 and high-density sponge layer packing 6 in body, air bag is communicated with one end of inflation line, and the other end of inflation line 4 stretches out body, the end signalization generator cover body 3 of body, and signal generator is arranged in cover body; The both ends of the surface of body are provided with the oil-filled hole 2 of ventilation.
Described air bag arranges two, and air bag is the form of the foetus shape in automobile; Two air bags are arranged on apart from circular arc head edge 300 mm and 700 mm places; Air bag diameter 200mm.
The outer surface of described body is circumferentially provided with sealing strip 1; Sealing strip is apart from circular arc head edge 300mm, and sealing strip is made up of 4 wide 60 mm soft rubber bars, is spaced apart 30 mm between adjacent two soft rubber bars.
Described inflation line length 1200mm, air valve is installed in the end that inflation line stretches out body; Be point front fracture, a rear fracture according to oil transportation flow path direction from pipeline incision position.This device can divide front plugging device and rear plugging device, distinguishes and stretches out position in the inflation line of air bag.The inflation line of front plugging device is stretched out from the afterbody of body, and the inflation line of rear plugging device is stretched out from circular arc head.
The utility model working process is: after circular arc head and column capsule skin are carried out, and fills in high-density sponge to column height 300mm to circular arc cephalad direction, installs the air bag of the form of the foetus shape in 2 automobiles having filled half gas side by side.Two of two air bags inflation line are stretched outside body, continues to fill in high-density sponge.Make sponge control two air bag radial expansions freely, axial activity is not askew, do not fall.Put into installation signal generator when filling in fast completely 200mm in position, limit and obtain rubber box, continue to fill in full.Sticky and rear flat stifled, an airbag aeration pipeline oil-filled hole of ventilation in office is stretched out, the position preparing to install signal generator temporarily sticky and.Gas-filling bag is filled with nitrogen pressure testing, and air bag, air valve are air tight, complete.
During use, select corresponding plugging device according to the diameter of petroleum pipeline, the pressure testing of two air bag inflated with nitrogen, air tight, be vented, shed pressure.After cutting pipeline fracture, load plugging device according to tandem, circular arc head is consistent with oily flow path direction, and levelling position as shown in Figure 4, is filled with nitrogen 0.3Mpa, checks whether gas leakage, crude oil and gas mixture and construction interface are kept apart in air bag.Opening signal generator, checks whether signal normally sends, receives.Cleaning pipeline fracture, checks gas concentration, after safety.Carry out EIP equipment installation procedure.After having constructed, pump oil transportation has been opened in construction point upstream, and two plugging devices push in the receipts wiper bucket of lower station and take out by oil.
Protection domain of the present utility model is as the criterion with claim, not limited by specific embodiment.
Claims (9)
1. the dual-purpose bellows wiper of shutoff pigging, it is characterized in that body is made up of circular arc head and column capsule skin, air bag and packing are set in body, air bag is communicated with one end of inflation line, the other end of inflation line stretches out body, the end signalization generator cover body of body, signal generator is arranged in cover body; The both ends of the surface of body are provided with the oil-filled hole of ventilation.
2. the dual-purpose bellows wiper of shutoff pigging according to claim 1, is characterized in that described air bag arranges two, and air bag is the form of the foetus shape in automobile.
3. the dual-purpose bellows wiper of shutoff pigging according to claim 2, is characterized in that two described air bags are arranged on apart from circular arc head edge 300 mm and 700 mm places.
4. the dual-purpose bellows wiper of shutoff pigging according to claim 2, is characterized in that described air bag diameter 200mm.
5. the dual-purpose bellows wiper of shutoff pigging according to claim 1, is characterized in that described packing is high-density sponge layer.
6. the dual-purpose bellows wiper of shutoff pigging according to claim 1, is characterized in that the outer surface of described body is circumferentially provided with sealing strip.
7. the dual-purpose bellows wiper of shutoff pigging according to claim 6, it is characterized in that described sealing strip is apart from circular arc head edge 300mm, sealing strip is made up of 4 wide 60 mm soft rubber bars, is spaced apart 30 mm between adjacent two soft rubber bars.
8. the dual-purpose bellows wiper of shutoff pigging according to claim 1, is characterized in that described column capsule skin diameter 5mm less of conveyance conduit inner diameter.
9. the dual-purpose bellows wiper of shutoff pigging according to claim 2, is characterized in that described inflation line length 1200mm, and air valve is installed in the end that inflation line stretches out body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455701.XU CN204062316U (en) | 2014-08-13 | 2014-08-13 | The dual-purpose bellows wiper of shutoff pigging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455701.XU CN204062316U (en) | 2014-08-13 | 2014-08-13 | The dual-purpose bellows wiper of shutoff pigging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204062316U true CN204062316U (en) | 2014-12-31 |
Family
ID=52203828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420455701.XU Expired - Fee Related CN204062316U (en) | 2014-08-13 | 2014-08-13 | The dual-purpose bellows wiper of shutoff pigging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204062316U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238416A (en) * | 2016-07-27 | 2016-12-21 | 中国石油大学(华东) | Inflation/deflation solves cassette pipeline cleaner automatically |
| US10213816B2 (en) | 2015-04-21 | 2019-02-26 | Tdw Delaware, Inc. | Pipeline pig with hydraulically balanced collapsible sealing elements |
-
2014
- 2014-08-13 CN CN201420455701.XU patent/CN204062316U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10213816B2 (en) | 2015-04-21 | 2019-02-26 | Tdw Delaware, Inc. | Pipeline pig with hydraulically balanced collapsible sealing elements |
| CN106238416A (en) * | 2016-07-27 | 2016-12-21 | 中国石油大学(华东) | Inflation/deflation solves cassette pipeline cleaner automatically |
| CN106238416B (en) * | 2016-07-27 | 2018-08-31 | 中国石油大学(华东) | Inflation/deflation solves cassette pipeline cleaner automatically |
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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 |
Granted publication date: 20141231 Termination date: 20150813 |
|
| EXPY | Termination of patent right or utility model |