CN108386649B - Pipeline pressure test plugging structure - Google Patents
Pipeline pressure test plugging structure Download PDFInfo
- Publication number
- CN108386649B CN108386649B CN201810291835.5A CN201810291835A CN108386649B CN 108386649 B CN108386649 B CN 108386649B CN 201810291835 A CN201810291835 A CN 201810291835A CN 108386649 B CN108386649 B CN 108386649B
- Authority
- CN
- China
- Prior art keywords
- baffle
- base plate
- locking
- pipeline
- pull rod
- 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.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 210000000078 claw Anatomy 0.000 claims abstract description 28
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 25
- 238000003825 pressing Methods 0.000 abstract description 16
- 238000004873 anchoring Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
- F16L55/132—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
Abstract
The invention discloses a pipeline pressure test plugging structure which comprises a locking baffle, a rubber sealing piece, a pressing baffle and a plugging part, wherein the locking baffle, the rubber sealing piece, the pressing baffle and the plugging part are sequentially arranged inside a pipeline opening from inside to outside, the locking baffle is provided with a locking baffle and a middle pull rod, the inner end of the pressing baffle is provided with a pressing baffle, the outer end of the pressing baffle is provided with a conical baffle, the plugging part is provided with a base plate, the inner side surface of the base plate is provided with a plurality of positioning claws, the positioning claws are arranged along the radial direction, the inner end is hinged with the base plate, the rubber sealing piece, the pressing baffle and the base plate are sleeved on the middle pull rod, the outer end of the middle pull rod is provided with a locking nut, the rubber sealing piece is extruded between the locking baffle and the pressing baffle, the rubber sealing piece and the inner wall of the pipeline opening form a sealing structure, the outer ends of the positioning claws are in press connection with the conical baffle, and the outer ends of the positioning claws are in anastomotic anchoring on the inner wall of the pipeline opening. The invention does not need to use blind plates, can save a large number of blind plates and manpower, and has simple operation and reliable performance.
Description
Technical Field
The invention relates to a pipeline plugging structure, in particular to a pipeline pressure test plugging structure.
Background
The industrial device needs a large number of pipelines to be conveyed, in the construction process of the industrial device, the large number of pipelines need to be welded, after the welding and flaw detection of the pipelines are finished, in order to ensure the performance of the pipelines, the pipelines need to be subjected to a water pressure or air pressure test, and for the pipelines connected by adopting flanges, the pressure test can be performed by additionally arranging blind plates between two connecting flanges; if the pressure test is performed on the pipe section with flanges at both ends, preparing a matched flange and a blind plate for pressure test; for the pipeline adopting welded connection, the former practice is to weld a blind plate at the end of the pipeline to test pressure, after testing pressure, the blind plate needs to be cut off, and then a mouth is repaired.
Disclosure of Invention
The invention provides a novel pipeline pressure test plugging structure for solving the technical problems in the prior art, which does not need to use blind plates, and most importantly, the pressure test is carried out on pipe sections with flanges at both ends, the pairing flanges are not needed, and the blind plates and cutting blind plates are not needed for welding connected pipelines, so that a large number of blind plates and manpower can be saved, and the structure is simple to operate and reliable in performance.
The invention adopts the technical proposal for solving the technical problems in the prior art that: the utility model provides a pipeline pressure test plugging structure, includes from interior to exterior sets gradually at the inside locking fender piece of pipeline mouth, rubber seal piece, compresses tightly fender piece and plugging member, locking fender piece is equipped with locking baffle and middle part pull rod, the middle part pull rod is fixed perpendicularly locking baffle's lateral surface central authorities, the inner that compresses tightly the fender piece is equipped with compresses tightly the baffle, and the outer end is established and is the taper type and keep off the head, plugging member is equipped with the base plate be equipped with a plurality of positioning claws on the medial surface of base plate, the positioning claw is radially arranged, the inner with the base plate articulates, a plurality of positioning claws evenly arranges along circumference, the rubber seal piece compress tightly fender piece with the base plate all suit is in on the middle part pull rod the outer end of middle part pull rod is equipped with lock nut, the rubber seal piece is compressed between locking baffle with compress tightly the baffle, the rubber seal piece forms seal structure with the inner wall of pipeline mouth, the positioning claw is pressed on the taper type keeps off the head, the outer end of positioning claw is anchored on the inner wall of pipeline mouth in an anastomotic ground.
The outer end face of the positioning claw is provided with a tooth-shaped structure extending along the circumferential direction.
The structure also comprises a hoop, wherein the hoop is fixed on the outer wall of the pipeline opening, and the base plate is connected with the hoop through a safety chain.
The invention has the advantages and positive effects that: the sealing and fixing structure solves the problem of pressure test blocking of the welding end of the pipeline in industry, a blind plate is not needed, most importantly, pressure test is carried out on the pipeline sections with flanges at both ends, the matched flanges are not needed, and the blind plate and the cutting blind plate are not needed for welding the connected pipeline, so that a large number of blind plates and manpower can be saved, and the form of the pipeline opening can be maintained attractive; the plugging effect can be achieved simultaneously only by screwing the nut, the disassembly is very simple, the whole plugging structure can be loosened only by loosening the nut, and the operation is very simple; the sealing is realized by extruding the rubber sealing sheet, the fixing is realized by extruding the positioning claw, the performance is reliable, and the plugging effect is good; in conclusion, the invention has the characteristics of high construction speed, short construction period, safe operation, low construction cost and the like, and has simple structure and ingenious conception.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a locking stop of the present invention;
FIG. 3 is a schematic view of a compression stop of the present invention;
FIG. 4 is a front view of the occluding component of the present invention;
FIG. 5 is a top view of FIG. 4;
fig. 6 is an enlarged schematic view of the outer end of the positioning pawl of the present invention.
In the figure: 1. a locking baffle; 1-1, locking a baffle; 1-2, a middle pull rod; 2. a rubber sealing sheet; 3. compressing the blocking piece; 3-1, compacting the baffle; 3-2, a conical baffle; 4. a blocking member; 4-1, a substrate; 4-2, positioning claws; 5. a hoop; 6. a safety chain; 7. a lock nut; 8. a pipeline.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
referring to fig. 1-6, a pipeline pressure test plugging structure comprises a locking baffle 1, a rubber sealing sheet 2, a pressing baffle 3 and a plugging part 4 which are sequentially arranged inside a pipeline opening from inside to outside, wherein the locking baffle 1 is provided with a locking baffle 1-1 and a middle pull rod 1-2, the middle pull rod 1-2 is vertically fixed at the center of the outer side surface of the locking baffle 1-1, the inner end of the pressing baffle 3 is provided with the pressing baffle 3-1, the outer end is provided with a conical baffle head 3-2, the plugging part 4 is provided with a base plate 4-1, the inner side surface of the base plate 4-1 is provided with a plurality of positioning claws 4-2, the positioning claws 4-2 are arranged in the radial direction, the inner end is hinged with the base plate 4-1, the positioning claws 4-2 are uniformly arranged along the circumferential direction, the rubber sealing sheet 2, the pressing baffle 3 and the base plate 4-1 are vertically fixed on the middle pull rod 1-2, the outer end of the middle pull rod 1-2 is provided with a rubber nut 7, the pressing nut 2 is pressed by the pressing baffle head 2 and the inner wall 2 is pressed by the sealing claw 2, and the positioning claw 4-8 is formed between the sealing claw 2 and the inner wall 2-sealing claw 2 and the sealing claw 2-3-shaped structure.
In this embodiment, in order to increase the anchoring force, a tooth-shaped structure extending in the circumferential direction is provided on the outer end face of the positioning pawl 4-2. In order to prevent the plugging component from being sprayed out in the pressure test process and ensure safety, the plugging structure further comprises a hoop 5, wherein the hoop 5 is fixed on the outer wall of the pipeline opening, and the base plate 4-1 is connected with the hoop 5 through a safety chain 6.
When the sealing device is used, the rubber sealing sheet 2, the compression baffle 3 and the plugging part 4 are sequentially sleeved on the middle pull rod 1-2, a locking nut is not added on the middle pull rod 1-2, the assembly is put into the pipeline 8, the plugging part 4 is placed at a set position, then the locking nut 7 is additionally arranged on the middle pull rod 1-2, after the locking nut 7 is fastened, the locking baffle 1-1 and the compression baffle 3-1 squeeze the rubber sealing sheet 2, so that the rubber sealing sheet 2 forms a sealing structure between the radial extension of the rubber sealing sheet and the pipeline 8, and the sealing effect is achieved; meanwhile, the conical baffle head 3-2 and the base plate 4-1 squeeze the positioning claw 4-2, so that the positioning claw 4-2 is opened and anchored on the inner wall of the pipeline 8, and the purpose of fixing the sealing structure is achieved. Finally, the plugging part 4 and the anchor ear 5 are connected together by a safety chain 6. In this way pressure testing of the pipe 8 can begin. Before pressure test, a line is drawn on the inner wall of the pipeline port along the outer side of the base plate 4-1, and when the pressure is applied, if the line pressing or line crossing of the base plate 4-1 is found, the blocking part 4 slides outwards, and the locking nut 7 is not fastened in place. After the pressing is finished, the fact that the pressure in the pipeline 8 is not high is confirmed, the locking nut 7 is loosened, then the safety chain 6 is opened, the plugging member 4 is lightly knocked, and then the assembly of the locking baffle 1, the rubber sealing piece 2, the pressing baffle 3 and the plugging member 4 can be taken out of the pipeline.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the appended claims, which are within the scope of the present invention.
Claims (3)
1. The utility model provides a pipeline pressure test plugging structure, its characterized in that includes from inside to outside setting gradually at the inside locking retaining member of pipeline mouth, rubber seal piece, compresses tightly retaining member and plugging member, the locking retaining member is equipped with locking baffle and middle part pull rod, the middle part pull rod is fixed perpendicularly locking baffle's lateral surface central authorities, the inner of compressing tightly retaining member is equipped with compresses tightly the baffle, and the outer end is established and is cone type blocking head, plugging member is equipped with the base plate be equipped with a plurality of locating claws on the medial surface of base plate, the locating claw is along radial arrangement, the inner with the base plate articulates, a plurality of locating claws evenly arranges along circumference, the rubber seal piece compress tightly retaining member with the base plate all suit is in on the middle part pull rod the outer end of middle part pull rod is equipped with lock nut, the rubber seal piece is extruded locking baffle with compress tightly between the baffle, the rubber seal piece forms seal structure with the inner wall of pipeline mouth, the locating claw is pressed on the cone type blocking head, the outer end of locating claw is anastomotic ground anchor on the inner wall of pipeline mouth.
2. The pressure test plugging structure for a pipeline according to claim 1, wherein a tooth-shaped structure extending along the circumferential direction is arranged on the outer end face of the positioning claw.
3. The pressure test plugging structure of claim 1, further comprising a hoop, wherein the hoop is fixed to an outer wall of the pipeline opening, and wherein the base plate is connected to the hoop by a safety chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291835.5A CN108386649B (en) | 2018-04-03 | 2018-04-03 | Pipeline pressure test plugging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291835.5A CN108386649B (en) | 2018-04-03 | 2018-04-03 | Pipeline pressure test plugging structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108386649A CN108386649A (en) | 2018-08-10 |
| CN108386649B true CN108386649B (en) | 2024-03-19 |
Family
ID=63073312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810291835.5A Active CN108386649B (en) | 2018-04-03 | 2018-04-03 | Pipeline pressure test plugging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108386649B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165672A (en) * | 2021-10-20 | 2022-03-11 | 海洋石油工程股份有限公司 | Low pressure metal pipeline pressure testing welding-free plugging device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2607370A (en) * | 1948-07-13 | 1952-08-19 | Oscar F Anderson | Pipe plug |
| SU1333930A1 (en) * | 1985-04-17 | 1987-08-30 | Научно-Исследовательский И Проектный Институт "Гипроморнефть " | Arrangement for closing pipeline |
| US7464727B1 (en) * | 2007-10-22 | 2008-12-16 | Ips Corporation | Clean-out repair plug |
| CN202252601U (en) * | 2011-09-10 | 2012-05-30 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Pipeline sealing stopper |
| CN102734592A (en) * | 2012-06-07 | 2012-10-17 | 杨春 | Pipeline free end sealing device |
| CN203641764U (en) * | 2013-12-25 | 2014-06-11 | 中国二冶集团有限公司 | Pipeline orifice solderless sealing device |
| CN204005013U (en) * | 2014-08-01 | 2014-12-10 | 台州市金焰机械设备有限公司 | The leather cup block head that a kind of pipeline is used |
| CN206429802U (en) * | 2016-12-30 | 2017-08-22 | 新疆石油工程建设有限责任公司 | Pipeline mouth of pipe quick nondestructive plugging device |
| CN208253038U (en) * | 2018-04-03 | 2018-12-18 | 中石化第四建设有限公司 | A kind of pipeline pressure test plugging structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2940398B1 (en) * | 2008-12-22 | 2013-07-05 | Areva Np | SHUTTER FOR OPENING A JUNCTION TUBE OF AN ENCLOSURE AND A PIPE, IN PARTICULAR A STEAM GENERATOR OF A PRESSURE WATER REACTOR |
-
2018
- 2018-04-03 CN CN201810291835.5A patent/CN108386649B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2607370A (en) * | 1948-07-13 | 1952-08-19 | Oscar F Anderson | Pipe plug |
| SU1333930A1 (en) * | 1985-04-17 | 1987-08-30 | Научно-Исследовательский И Проектный Институт "Гипроморнефть " | Arrangement for closing pipeline |
| US7464727B1 (en) * | 2007-10-22 | 2008-12-16 | Ips Corporation | Clean-out repair plug |
| CN202252601U (en) * | 2011-09-10 | 2012-05-30 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Pipeline sealing stopper |
| CN102734592A (en) * | 2012-06-07 | 2012-10-17 | 杨春 | Pipeline free end sealing device |
| CN203641764U (en) * | 2013-12-25 | 2014-06-11 | 中国二冶集团有限公司 | Pipeline orifice solderless sealing device |
| CN204005013U (en) * | 2014-08-01 | 2014-12-10 | 台州市金焰机械设备有限公司 | The leather cup block head that a kind of pipeline is used |
| CN206429802U (en) * | 2016-12-30 | 2017-08-22 | 新疆石油工程建设有限责任公司 | Pipeline mouth of pipe quick nondestructive plugging device |
| CN208253038U (en) * | 2018-04-03 | 2018-12-18 | 中石化第四建设有限公司 | A kind of pipeline pressure test plugging structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108386649A (en) | 2018-08-10 |
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