CN203082451U - Double-tube sealed nitrogen replacement band oil and gas band pressure leaking stoppage device - Google Patents
Double-tube sealed nitrogen replacement band oil and gas band pressure leaking stoppage device Download PDFInfo
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- CN203082451U CN203082451U CN 201220634346 CN201220634346U CN203082451U CN 203082451 U CN203082451 U CN 203082451U CN 201220634346 CN201220634346 CN 201220634346 CN 201220634346 U CN201220634346 U CN 201220634346U CN 203082451 U CN203082451 U CN 203082451U
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- nitrogen replacement
- leak stopping
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- oil
- stopping device
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Abstract
The utility model provides an oil and gas pipeline double-tube sealed nitrogen replacement band oil and gas band pressure leaking stoppage device, and relates to the technical field of pipeline systems. The device comprises a leaking stoppage device body (1), a sealing rubber ring (2), a leaking stoppage device sealing head (3), a seamless steel pipe (4), a gas check valve (5), ball valves (6), a pressure meter (7) and a lever block (8); after two pipes located on the upper portion inside the leaking stoppage device body (1) and communicated to an inner pipe are guided out, the two pipes are respectively connected with one ball valve (6), the nitrogen replacement seamless steel pipe (4) is connected on the rear portion of one ball valve (6), the pressure meter (7) is connected on one side of the one ball valve (6), the gas check valve (5) is connected on the rear portion of the other ball valve (6), and the nitrogen replacement seamless steel pipe (4) is connected on the rear portion of the gas check valve (5); and the leaking stoppage device sealing head (3) covers the upper end of the leaking stoppage device main body (1), and the sealing rubber ring (2) is arranged at the end of the inner pipe of the lower end of the leaking stoppage device main body (1). The oil and gas pipeline double-tube sealed nitrogen replacement band oil and gas band pressure leaking stoppage device is convenient to use, fast, safe and efficient.
Description
Technical field
The utility model is the two-tube sealed type nitrogen replacement of an a kind of oil and gas pipes band oil gas pressure sealing device.Relate to the pipe-line system technical field.
Background technique
Along with long defeated oil and gas pipeline is increasing, pipe safety more and more becomes the focus that oil play is paid close attention to.Nowadays, pipeline damage forms such as oil and gas pipeline and chemical pipeline corrosion failure, sand holes, cracking and lawless person's drilling hole of oil stolen have brought great risk, serious threat pipeline transport safety and production for the normal operation of pipeline.This just needs the pipeline operation enterprise when paying attention to pipe-line maintenance, also will work hard on pipe first-aid, and how can saferly finish the pipe first-aid task more efficiently becomes the problem that the pipeline industry is constantly explored.
Under the prior art situation, the leak stoppage tool of rushing to repair at oil and gas pipeline has many types, and wherein the most close with the utility model with structure with present principles is oil pressure plugging device (patent No. ZL 01231818.3).The subject matter that this plugging device exists is only by drainage system the Pipeline Leakage Point place is carried out drainage, but still there is oil gas in plugging device inside, has risk during welding.
The model utility content
The purpose of this utility model is a kind of convenient, fast, safe, two-tube sealed type nitrogen replacement band oil gas pressure sealing device efficiently of design.
The two-tube sealed type nitrogen replacement of the utility model band oil gas pressure sealing device is a kind of leakage-baffling device at oil transport pipeline, natural gas line and chemical engineering piping systems repairing field, is applicable to that the bigger modes such as all kinds of pipeline straight length generation corrosion failures, trachoma, cracking or lawless person's drilling hole of oil stolen of caliber carry out plugging operations to following of the damaged condition of pipeline.This leak stopping device is that original leak stopping device structure is redesigned, and makes every effort to improve the safety coefficient and the working efficiency of band pressure pipeline plugging operations, reduces fabricating cost.
Structure of the present utility model such as Fig. 1-shown in Figure 5, comprise leak stopping device main body 1, O-ring seal 2, leak stopping device end socket 3, seamless steel pipe 4, gas safety check 5, ball valve 6, pressure gauge 7 and Lever Blocks 8.Top in leak stopping device main body 1 has two to lead to respectively connect a ball valve 6 after the pipe of interior pipe is drawn, connect nitrogen replacement seamless steel pipe 4 and the other pressure gauge 7 that connects behind one ball valve 6, connect gas safety check 5 behind another ball valve 6, connect nitrogen replacement seamless steel pipe 4 behind the gas safety check 5; Device end socket 3 is leaked in the 1 upper end cap shutoff of leak stopping device main body, and the inner tube of lower end has O-ring seal 2.
Described leak stopping device main body 1 is that two short tubes are nested, interior pipe upper end with flat plectane cap seal and with the outer tube wall sealing, the lower end of leak stopping device main body 1 is the shape of a saddle, and treats that mending-leakage pipeline 9 peripheries are coincide and mates; Leak stopping device main body 1 outer two ears that supply Lever Blocks 8 stay cords to pass that symmetry is arranged;
The shape of described O-ring seal 2 is the cushion rubber that the cross section becomes " U " shape as shown in Figure 6;
The shape of leak stopping device end socket 3 adds circular-arc end socket for justifying short tube as shown in Figure 7 and Figure 8.
Carry out the pipeline diameter of leak stopping at first as required and make leak stopping device main body 1 and leak stopping device end socket 3, install ball valve 6, pressure gauge 7, gas safety check 5 and connecting tube thereof; Put leak stopping device O-ring seal 2 after completing, inner chamber shutoff pipeline damaged location with leak stopping device main body 1, with Lever Blocks 8 tensions, make leak stopping device O-ring seal 2 places and tube wall combine closely, oil gas is enclosed in the leak stopping device inner chamber, opens suction tude and steam outlet pipe ball valve 6, charge into nitrogen to inner chamber, discharge inner chamber oil gas to collection box, observe pressure gauge 7 indications below 0.2MPa.Next leak stopping device outer wall and pipeline external wall are welded, after welding is finished, close suction tude and steam outlet pipe ball valve 6, ball valve 6 is suitable for reading to add the plugs sealing, at last leak stopping device end socket 3 is welded on leak stopping device top, finishes once the plugging operations with pressure pipeline.
The advantage of two-tube sealed type nitrogen replacement band oil gas pressure sealing device in the pipeline with pressure plugging operations has: the first, by the mode of bore seal and nitrogen replacement, improved the Security of pipeline with pressure plugging operations; The second, this leak stopping device is made easily, cost is low, and except that leak stopping device main body needed processing separately, remaining component did not need independent processing, can directly buy; The 3rd, using method is simple, and sealing compresses, nitrogen replacement, welding three steps can be finished plugging operations one time.
Using scope of the present utility model is the pipe plugging operation of caliber from Φ 219mm to Φ 1020mm.
Description of drawings
The two-tube sealed type nitrogen replacement of Fig. 1 band oil gas pressure sealing device erection drawing
The two-tube sealed type nitrogen replacement of Fig. 2 band oil gas pressure sealing device main body plan view
The two-tube sealed type nitrogen replacement of Fig. 3 band oil gas pressure sealing device main body side view
The two-tube sealed type nitrogen replacement of Fig. 4 band oil gas pressure sealing device main body plan view
The two-tube sealed type nitrogen replacement of Fig. 5 band oil gas pressure sealing device main body plan view A is to view
Fig. 6 O-ring seal sectional view
Fig. 7 leak stopping device end socket plan view
Fig. 8 leak stopping device end socket plan view
1-leak stopping device main body, 2-O-ring seal wherein
3-leak stopping device end socket, 4-nitrogen replacement seamless steel pipe
5-gas safety check, 6-ball valve
7-pressure gauge, 8-Lever Blocks
9-treat the leak stopping pipeline
Embodiment
Embodiment. this example is an experimental prototype, and it constitutes as Fig. 1-shown in Figure 5.Comprise leak stopping device main body 1, O-ring seal 2, leak stopping device end socket 3, seamless steel pipe 4, pressure gauge 5, gas safety check 6, ball valve 7 and Lever Blocks 8.Top in leak stopping device main body 1 has two to lead to respectively to connect after the pipe of interior pipe is drawn and connect seamless steel pipe 4 behind a ball valve 7, one ball valves 7 and otherly connect a pressure gauge 5, connects gas safety check 6 behind another ball valve 7, and the gas non-return connects seamless steel pipe 4 after 6; Device end socket 3 is leaked in the 1 upper end cap shutoff of leak stopping device main body, and the inner tube of lower end has O-ring seal 2.
Described leak stopping device main body 1 is that two short tubes are nested, interior pipe upper end with flat plectane cap seal and with the outer tube wall sealing, the lower end of leak stopping device main body 1 is the shape of a saddle, and treats that mending-leakage pipeline 9 peripheries are coincide and mates; Leak stopping device main body 1 outer two ears that supply Lever Blocks 8 stay cords to pass that symmetry is arranged;
The shape of described O-ring seal 2 as shown in Figure 6, its cross section becomes " U " shape;
The shape of leak stopping device end socket 3 adds circular-arc end socket for justifying short tube as shown in Figure 7 and Figure 8.
Wherein:
The key dimension of leak stopping device main body 1 is: external diameter 350mm, height 340mm;
The key dimension of O-ring seal 2 is: width 20mm, thickness 27mm(groove 10mm*15mm);
The key dimension of leak stopping device end socket 3 is: external diameter 350mm, height 210mm;
The key dimension of seamless steel pipe 4 is: φ 25 * 1.9mm;
Pressure gauge 5 selects Y-40, and range 0 is to 0.6MPa;
It is H76X that gas safety check 6 selects model, DN25;
It is Q11F that ball valve 7 selects model, DN25;
It is HSH-D1/2 that Lever Blocks 8 selects model.
This example proves the Security that has improved the pipeline with pressure plugging operations through test; This leak stopping device is made easily, cost is low; Using method is simple, and sealing compresses, nitrogen replacement, welding three steps can be finished plugging operations one time.
Claims (4)
1. the two-tube sealed type nitrogen replacement of an oil and gas pipes band oil gas pressure sealing device is characterized in that it comprises leak stopping device main body (1), O-ring seal (2), leak stopping device end socket (3), seamless steel pipe (4), gas safety check (5), ball valve (6), pressure gauge (7) and Lever Blocks (8); Top in leak stopping device main body (1) has two to lead to respectively connect a ball valve (6) after the pipe of interior pipe is drawn, connect nitrogen replacement seamless steel pipe (4) and the other pressure gauge (7) that connects behind one ball valve (6), connect gas safety check (5) behind another ball valve (6), connect nitrogen replacement seamless steel pipe (4) behind the gas safety check (5); Device end socket (3) is leaked in leak stopping device main body (1) upper end cap shutoff, and the inner tube of lower end has O-ring seal (2).
2. the two-tube sealed type nitrogen replacement of oil and gas pipes according to claim 1 band oil gas pressure sealing device, it is characterized in that described leak stopping device main body (1) is that two short tubes are nested, in pipe upper end with flat plectane cap seal and with the outer tube wall sealing, the lower end of leak stopping device main body (1) is the shape of a saddle, and treats mending-leakage pipeline (9) the periphery coupling of coincideing; Outer two ears that supply Lever Blocks (8) stay cord to pass that symmetry is arranged of leak stopping device main body (1).
3. the two-tube sealed type nitrogen replacement of oil and gas pipes according to claim 1 band oil gas pressure sealing device, the shape that it is characterized in that described O-ring seal (2) are the cushion rubbers that the cross section becomes " U " shape.
4. the two-tube sealed type nitrogen replacement of oil and gas pipes according to claim 1 band oil gas pressure sealing device is characterized in that the round short tube that is shaped as of described leak stopping device end socket (3) adds circular-arc end socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220634346 CN203082451U (en) | 2013-04-03 | 2013-04-03 | Double-tube sealed nitrogen replacement band oil and gas band pressure leaking stoppage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220634346 CN203082451U (en) | 2013-04-03 | 2013-04-03 | Double-tube sealed nitrogen replacement band oil and gas band pressure leaking stoppage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082451U true CN203082451U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220634346 Expired - Lifetime CN203082451U (en) | 2013-04-03 | 2013-04-03 | Double-tube sealed nitrogen replacement band oil and gas band pressure leaking stoppage device |
Country Status (1)
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| CN (1) | CN203082451U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154381A (en) * | 2014-08-11 | 2014-11-19 | 瓮福（集团）有限责任公司 | Open fire maintenance method for liquid ammonia pipeline or equipment |
| CN105179873A (en) * | 2015-09-28 | 2015-12-23 | 中国石油天然气集团公司 | Leakage repair cover for pipeline stretching-out articles |
| CN107355630A (en) * | 2017-09-05 | 2017-11-17 | 安徽晋煤中能化工股份有限公司 | Ring pads seal diversion unit valve |
| CN113847506A (en) * | 2021-12-01 | 2021-12-28 | 天津天地龙管业股份有限公司 | Heating pipeline leaking stoppage device with pressure |
-
2013
- 2013-04-03 CN CN 201220634346 patent/CN203082451U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154381A (en) * | 2014-08-11 | 2014-11-19 | 瓮福（集团）有限责任公司 | Open fire maintenance method for liquid ammonia pipeline or equipment |
| CN105179873A (en) * | 2015-09-28 | 2015-12-23 | 中国石油天然气集团公司 | Leakage repair cover for pipeline stretching-out articles |
| CN107355630A (en) * | 2017-09-05 | 2017-11-17 | 安徽晋煤中能化工股份有限公司 | Ring pads seal diversion unit valve |
| CN113847506A (en) * | 2021-12-01 | 2021-12-28 | 天津天地龙管业股份有限公司 | Heating pipeline leaking stoppage device with pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211104 Address after: Room 08-10, 6 / F, block a, No. 5, Dongtucheng Road, Chaoyang District, Beijing 100013 Patentee after: National Petroleum and natural gas pipeline network Group Co.,Ltd. Address before: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Patentee before: PETROCHINA Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
|
| CX01 | Expiry of patent term |