CN211504578U - Pipeline interface pressure testing device - Google Patents
Pipeline interface pressure testing device Download PDFInfo
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- CN211504578U CN211504578U CN202020571283.6U CN202020571283U CN211504578U CN 211504578 U CN211504578 U CN 211504578U CN 202020571283 U CN202020571283 U CN 202020571283U CN 211504578 U CN211504578 U CN 211504578U
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- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012031 short term test Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a pipeline interface pressure testing device, which comprises a pressure cavity component, a pressure port, a pressure meter and an exhaust port, wherein the pressure cavity component comprises at least two arc-shaped plates, a groove and a sealing element, and the arc-shaped plates form a cavity for accommodating a pipeline; the grooves are formed in the two ends of each arc-shaped plate, and the sealing elements are arranged in the grooves, so that a sealed measuring cavity is formed among the pipeline, the two groups of grooves and the arc-shaped plates; the pressurizing port, the exhaust port and the pressure gauge are all communicated with the measuring cavity, and the pressure gauge is used for reflecting the pressure condition of the measuring cavity. The pipeline interface pressure testing device has the advantages of simple structure, convenience in use and capability of quickly detecting the quality of pipeline welding seams.
Description
Technical Field
The utility model relates to a pipeline sealing equipment technical field, concretely relates to pipe joint pressure testing device.
Background
Along with the rapid development of the economy of China, the speed of urbanization construction is accelerated constantly, in the process of urbanization construction, the service frequency of large-diameter long-distance pipelines is higher and higher, because the pipelines are longer, the pipelines need to be welded by a plurality of pipelines, in order to ensure the quality of pipeline welding, the pipeline welded junctions need to be subjected to flaw detection and pressure testing, the existing flaw detection and pressure testing equipment is used for carrying out pressure testing on the pipelines, the testing process is complex, the service life is longer, therefore, in the actual construction, only 50% of the welded junctions are subjected to nondestructive flaw detection, the whole hydraulic test is carried out after the pipelines are communicated, 50% of the welded junctions are not subjected to flaw detection and pressure testing before the whole pipeline system test, once the whole hydraulic test is carried out again after local leakage occurs, a large amount of water resource waste and cost increase are caused, and the whole construction progress.
Therefore, the device which is simple in structure and can effectively carry out pressure test detection on the pipeline is of great significance.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pipe joint pressure testing device has the advantage that the structure is retrencied, convenient to use just can the short-term test pipeline welding seam quality, and details are as follows:
a pressure testing device for pipeline interface comprises a pressure cavity component, a pressure port, a pressure gauge and an exhaust port,
the pressure cavity assembly comprises at least two arc-shaped plates, a groove and a sealing piece, and the arc-shaped plates form a cavity for accommodating a pipeline; the grooves are formed in the two ends of each arc-shaped plate, and the sealing elements are arranged in the grooves, so that a sealed measuring cavity is formed among the pipeline, the two groups of grooves and the arc-shaped plates;
the pressurizing port, the pressure gauge and the exhaust port are communicated with the measuring cavity, and the pressure gauge is used for reflecting the pressure condition of the measuring cavity.
As a further improvement of the above technical solution:
the pipeline interface pressure test device preferably further comprises a fastening assembly, the fastening assembly comprises a plurality of groups of fastening single pieces which correspond to the arc-shaped plates one by one and are detachably connected with each other, each fastening single piece comprises a first fastening plate, a second fastening plate, two rib plates and a jacking bolt, the width of the first fastening plate is larger than that of the arc-shaped plate (preferably 1.2-2.0 times, and further preferably 1.5 times), and the second fastening plate is fixedly connected to the outer side of the middle of the first fastening plate through the two rib plates; the distance between the two rib plates is smaller than or equal to the distance between the two grooves (preferably equal to the distance between the two grooves); the jacking bolts are arranged on the first fastening plates on the outer sides of the two rib plates to jack the arc-shaped plates tightly. The fastening assembly can effectively fix the pressure cavity assembly on the pipeline, and the sealing effectiveness (complete sealing) of the measuring cavity is ensured.
In the above-mentioned pressure test device for pipe joints, preferably, the tightening bolts are multiple, and the tightening bolts are distributed along the circumferential direction of the circle formed by the arc plates (preferably, uniformly distributed in the circumferential direction). The arc-shaped plate is stressed uniformly, the measuring cavity is ensured to be in a completely independent and sealed state in the pressure testing process, and the accuracy of pressure testing is improved.
In the above pipe interface pressure testing device, preferably, the end of the second fastening plate is provided with the second reverse plate, and the second reverse plates on the second fastening plates in the two groups of fastening single pieces are detachably connected through bolt and nut combinations. Further enhancing the fastening of the pressure cavity assembly by the fastening assembly.
Above-mentioned pipeline interface pressure testing device, preferably, be equipped with the pendant that is used for carrying on the hoist and mount on the mounting plate two, the pendant is close to the gas vent sets up. The exhaust port is located directly above when the pipeline is in the horizontal state, so that the air in the measuring cavity can be completely exhausted, and the accuracy of pressure detection is further ensured.
In the above pipeline interface pressure testing device, preferably, the pressure cavity assembly further includes a sealing gasket, and the sealing gasket is disposed at the butt joint of the two adjacent arc-shaped plates. It is further ensured that the measurement cavity is a completely separate and sealed cavity.
The pipeline interface pressure testing device is characterized in that the end parts of the arc-shaped plates are provided with the first reverse plates, and the first reverse plates on the two adjacent arc-shaped plates are detachably connected through the bolt and nut combination. The sealing effect of the pressure cavity assembly on the pipeline is further enhanced.
Above-mentioned pipeline interface pressure testing device, preferably, the sealing member is the silica gel sealing strip, and the part is obtained easily, and sealing performance is good.
Use the scheme of the utility model, install pressure cavity subassembly in the pipeline kneck that awaits measuring, and with the pressurized port, manometer and gas vent are connected with measuring the cavity, afterwards, with the force (forcing) pump with water from the pressurized port injection measurement cavity in, there is the log raft play back when the gas vent on top, close the valve on the pipeline of connecting the gas vent, begin to pressurize with the force (forcing) pump, add test pressure back, close the valve on the pipeline of connecting the pressurized port, observe the digital change of manometer in 2 hours, the pressure variation value is within standard allowed band, prove that pipeline weld is qualified, otherwise the weld is unqualified, this pipeline interface pressure testing device has the structure and retrencies, high durability and convenient use, can the advantage of short-term test pipeline welding seam quality.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic structural view of a pressure cavity assembly of a pressure testing device of a pipeline interface in an embodiment;
FIG. 2 is a schematic structural diagram of a fastening assembly of the pressure testing device of the pipeline interface in the embodiment;
FIG. 3 is a schematic view of an installation structure of a pressure testing device of a pipeline interface in the embodiment;
FIG. 4 is an axial structural schematic diagram of a pressure testing device of a pipeline interface in the embodiment;
description of the reference numerals
1. A pressure cavity assembly; 1.1, an arc-shaped plate; 1.2, a groove; 1.3, a sealing element; 1.4, a sealing gasket; 1.5, a first reverse plate; 2. a pressurizing port; 3. a pressure gauge; 4. an exhaust port; 5. a fastening assembly; 5.1, fastening a first plate; 5.2, fastening a second plate; 5.3, rib plates; 5.4, tightly pressing the bolt; 5.5, a second reverse plate; 5.6, hanging parts.
Detailed Description
The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Example (b):
as shown in fig. 1, the pressure testing device for pipe joints of this embodiment includes a pressure cavity assembly 1, a pressure port 2, a pressure gauge 3 and an exhaust port 4, and the details are as follows:
the pressure cavity assembly 1 comprises two arc-shaped plates 1.1 (the arc-shaped plates are semi-circular arc-shaped and are of a plate-shaped structure made of steel), two groups of grooves 1.2 and a sealing piece 1.3, and the two arc-shaped plates form a cavity for accommodating a pipeline, so that the arc-shaped plates are sleeved on the pipeline, and the detection of a pipeline welding seam is facilitated; the two groups of grooves 1.2 are respectively and fixedly connected with two sides of the inner side (the side close to the pipeline) of the arc-shaped plate 1.1, and sealing pieces 1.3 are arranged in the two groups of grooves 1.2; the pressurizing port 2 and the exhaust port 4 are both communicated with the measuring cavity, and when the pipeline is horizontally placed, the exhaust port 4 is positioned right above the highest position of the pipeline, and the pressurizing port 2 and the exhaust port 4 are preferably positioned at two ends of the same diameter of the section of the pipeline (namely when the exhaust port is positioned at the top, the pressurizing port is positioned at the bottom); the pipeline connecting the measuring cavity and the pressurizing port and the pipeline connecting the measuring cavity and the exhaust port are both provided with valves, and the pressure gauge 3 is arranged between the measuring cavity and the valves (preferably arranged on the pipeline connecting the measuring cavity and the pressurizing port) and used for reflecting the pressure condition of the measuring cavity.
The pipeline interface pressure testing device of this embodiment still includes fastening components 5, and fastening components 5 includes the multiunit fastening singleton (two sets of fastening singletons are illustrated in fig. 3 and fig. 4) that just detachable each other is connected with the arc one-to-one, fastening singleton includes fastening plate one 5.1, fastening plate two 5.2, two floor 5.3 and puller bolt 5.4, see fig. 2, fig. 3 and fig. 4 in detail, and the width of fastening plate one 5.1 is greater than the width of arc 1.1 (the width of preferred fastening plate one 5.1 is 1.5 times of the width of arc 1.1), and fastening plate two 5.2 are connected by two floor 5.3 and are fixed in the outside in the middle of fastening plate one 5.1, and two floor 5.3 intervals are less than or equal to the interval of two recesses 1.2, and puller bolt 5.4 sets up on the fastening plate one 5.1 in the two floor 5.3 outsides to carry out the puller to the arc. Set up fastening components 5 and fasten pressure cavity subassembly 1, make pressure cavity subassembly 1 laminate on the pipeline for measure the cavity and be the cavity completely independent and sealed with the external world, to measuring the cavity pressurization in-process, fastening components 5 plays the fastening effect to pressure cavity subassembly 1, avoids causing pressure to reveal because pressure cavity subassembly 1 and pipeline seal problem. Preferably, the jacking bolts 5.4 are multiple and distributed along the circumference of the circle formed by the two arc-shaped plates 1.1. The jacking bolt 5.4 fastens and jacks the arc-shaped plate 1.1 of the pressure cavity assembly 1, so that the groove 1.2 is hermetically attached to the pipeline. The first fastening plate and the second fastening plate are both made of steel.
In the pressure test device for the pipeline interface of the embodiment, the pressure cavity assembly 1 further comprises a sealing gasket 1.4, and the joint of the two adjacent arc-shaped plates 1.1 is provided with the sealing gasket 1.4. And a sealing gasket 1.4 is used for realizing the sealing connection of the two arc-shaped plates 1.1.
In the pressure testing device for the pipeline connector of the embodiment, the end part of the arc-shaped plate 1.1 is provided with the reverse plate 1.5, and the reverse plates 1.5 on the two arc-shaped plates 1.1 are detachably connected through the bolt and nut combination, which is detailed in fig. 4.
In the pressure testing device for the pipeline connector of the embodiment, the end part of the second 5.2 fastening plate is provided with the second 5.5 reverse plate, and the second 5.5 reverse plates on the second 5.2 fastening plates in the two groups of fastening single pieces are detachably connected through bolt and nut combinations, which is shown in fig. 4 in detail. The bolt and nut combined connection has the advantages of firm connection, strong tensile capacity and the like, so that the fastening effect of the fastening component 5 on the pressure cavity component 1 is better.
In the pressure test device for the pipeline interface of the embodiment, the second fastening plate 5.2 is provided with the hanging piece 5.6, the hanging piece is arranged close to the exhaust port, and the hanging piece is a hanging ring, which is shown in detail in fig. 4. When the pressure detection device is used, the hanging hook is hung on the hanging piece 5.6, so that the exhaust port 4 is located at the highest position, the air in the pressure cavity is completely exhausted, and the pressure detection of the pressure cavity is realized.
In the pressure testing device for the pipeline connector of the embodiment, the sealing element 1.3 is a silica gel sealing strip. Silica gel has very strong adsorption capacity, and enables the sealing effect of the pressure cavity assembly 1 and the pipeline to be better.
The technical scheme of the embodiment is specifically as follows: assembling the pressure testing device, wherein the pipeline welding seam is positioned in the measuring cavity; injecting water into the measuring cavity from the pressurizing port by using a pressurizing pump, closing a valve on a pipeline connected with the exhaust port after water is discharged from the exhaust port at the top end, starting pressurizing by using the pressurizing pump, closing the valve on the pipeline connected with the pressurizing port after test pressure is added, observing the digital change of a pressure gauge within 2 hours, and proving that the welded junction (namely a welding seam) of the pipeline is qualified if the pressure change value is within a standard allowable range, otherwise, the welded junction is unqualified. The pipeline interface pressure testing device of this embodiment has the advantage that the structure is retrencied, convenient to use just can the short-term test pipeline welding seam quality.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. A pipeline interface pressure testing device is characterized by comprising a pressure cavity component (1), a pressure port (2), a pressure gauge (3) and an exhaust port (4),
the pressure cavity assembly (1) comprises at least two arc-shaped plates (1.1), two groups of grooves (1.2) and a sealing piece (1.3), wherein the arc-shaped plates (1.1) form a cavity for accommodating a pipeline; the grooves (1.2) are formed in the two ends of each arc-shaped plate (1.1), and the sealing elements (1.3) are arranged in the grooves (1.2), so that a sealed measuring cavity is formed among the pipeline, the two groups of grooves (1.2) and the arc-shaped plates (1.1);
the pressurizing port (2), the pressure gauge (3) and the exhaust port (4) are communicated with the measuring cavity, and the pressure gauge (3) is used for reflecting the pressure condition of the measuring cavity.
2. The pipeline interface pressure testing device according to claim 1, further comprising a fastening assembly (5), wherein the fastening assembly (5) comprises a plurality of groups of fastening single pieces which correspond to the arc-shaped plates one by one and are detachably connected with each other, each fastening single piece comprises a first fastening plate (5.1), a second fastening plate (5.2), two rib plates (5.3) and a puller bolt (5.4), the width of the first fastening plate (5.1) is 1.2-2.0 times of the width of the arc-shaped plate (1.1), and the second fastening plate (5.2) is connected and fixed to the outer side of the first fastening plate (5.1) through the two rib plates (5.3); and the puller bolt (5.4) is arranged on the fastening plate I (5.1) to carry out puller on the arc-shaped plate (1.1).
3. The pipe interface pressure testing device according to claim 2, characterized in that the tightening bolts (5.4) are distributed along the circumference of a circle formed by a plurality of arc-shaped plates (1.1).
4. The pipeline interface pressure testing device according to claim 2, wherein the end of the second fastening plate (5.2) is provided with a second counter plate (5.5), and the second counter plates (5.5) on the second fastening plate (5.2) in the two fastening single pieces are detachably connected through bolt and nut combination.
5. The pipeline interface pressure testing device according to claim 2, characterized in that a hanging piece (5.6) for hoisting is arranged on the second fastening plate (5.2).
6. The pressure testing device for the pipeline interfaces according to any one of claims 1 to 5, characterized in that the pressure cavity assembly (1) further comprises a sealing gasket (1.4), and the sealing gasket (1.4) is arranged at the butt joint of two adjacent arc-shaped plates (1.1).
7. The pipeline interface pressure testing device according to claim 6, characterized in that the end of the arc-shaped plate (1.1) is provided with a first reverse plate (1.5), and the first reverse plates (1.5) on two adjacent arc-shaped plates (1.1) are detachably connected through a bolt and nut combination.
8. The pipe interface pressure testing device according to claim 6, characterized in that the sealing member (1.3) is a silica gel sealing strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020571283.6U CN211504578U (en) | 2020-04-16 | 2020-04-16 | Pipeline interface pressure testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020571283.6U CN211504578U (en) | 2020-04-16 | 2020-04-16 | Pipeline interface pressure testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211504578U true CN211504578U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020571283.6U Active CN211504578U (en) | 2020-04-16 | 2020-04-16 | Pipeline interface pressure testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211504578U (en) |
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2020
- 2020-04-16 CN CN202020571283.6U patent/CN211504578U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 9th Floor, New Zhoubang Science and Technology Building, No. 9 Changye Road, Liulian Community, Pingshan Street, Pingshan District, Shenzhen, Guangdong, 518118 Patentee after: CHINA CONSTRUCTION FIFTH ENGINEERING INSTALLATION Co.,Ltd. Address before: 410004 No. 158 Zhongyi Road, Yuhua District, Changsha, Hunan Patentee before: CHINA CONSTRUCTION FIFTH ENGINEERING INSTALLATION Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |