CN102175402B - Tee pressure-testing device and method for pipeline punching and pipeline plugging - Google Patents
Tee pressure-testing device and method for pipeline punching and pipeline plugging Download PDFInfo
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- CN102175402B CN102175402B CN 201110039520 CN201110039520A CN102175402B CN 102175402 B CN102175402 B CN 102175402B CN 201110039520 CN201110039520 CN 201110039520 CN 201110039520 A CN201110039520 A CN 201110039520A CN 102175402 B CN102175402 B CN 102175402B
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Abstract
The invention discloses a tee pressure-testing device and a tee pressure-testing method for pipeline punching and pipeline plugging. The device comprises a pressure-testing system, two plugs and a plug-driving system, wherein at least one of the plugs can be a moveable plug; the plug-driving system is in driving connection with the moveable plug; a water inlet passage is arranged on at least one of the plugs; and a pressure-testing line of the pressure-testing system is communicated with the water inlet passage. By the device, the material is saved, the pressure-testing efficiency is high, and the plugs and the openings of the tee for the pipeline punching and the pipeline plugging are not required to be welded.
Description
Technical field
The present invention relates to a kind of pipeline pressure testing device and pipeline pressure test method, particularly a kind of pipeline tapping and shutoff are carried out the pressure-measuring method of pressure testing with three-way pressure testing device with to pipeline tapping and shutoff with threeway.
Background technology
In the prior art, perforate and shutoff are with its two ends end socket of burn-oning with the pressure testing of threeway, wherein are installed into water pipe and tensimeter on an end end socket, and the end socket that pressure testing is burn-on two ends after finishing again prescinds, the shortcoming of doing like this is: 1) the nonstandard end socket of customization, and waste of material is serious; 2) welding regenerates welding stress to heat treated elbow, affects the threeway quality; 3) welding job amount is large, and efficient is low.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of economical with materials, pressure testing efficient high, do not need welding plug and pipeline tapping and shutoff to carry out the pressure-measuring method of pressure testing with pipeline tapping and the shutoff of the opening of threeway with threeway with three-way pressure testing device with to pipeline tapping and shutoff.
Technical scheme of the present invention is achieved in that pipeline tapping and shutoff three-way pressure testing device, comprises pressure testing system, two plugs and plug drive system; At least one described plug is plug movably, and described plug drive system drives with described movably plug and is connected; Be provided with intake tunnel at least one described plug, the pressure testing line of described pressure testing system is communicated with described intake tunnel.
Above-mentioned pipeline tapping and shutoff three-way pressure testing device, two plugs are respectively fixedly plug and mobile plug, are provided with described intake tunnel on described fixedly plug and/or described mobile plug, and described plug drive system drives with described mobile plug and is connected.
Above-mentioned pipeline tapping and shutoff also comprise structural framing with three-way pressure testing device, and described structural framing comprises crossbeam, the first end plate and the second end plate, the two ends of described crossbeam respectively with described the first end plate be connected the second end plate and be connected; Described fixedly plug is connected with described the first end plate and between described the first end plate and described the second end plate; Described plug drive system is hydraulic system, described hydraulic system comprises Hydraulic Station and the hydraulic cylinder that is communicated with described Hydraulic Station by hydraulic tube, and the piston rod end of described hydraulic cylinder and any one during cylinder body is connected are arranged on described the second end plate, another drives with walking dolly and be connected; Described mobile plug and described walking dolly drive and are connected and between described fixedly plug and described walking dolly, roller are installed on described walking dolly and described walking dolly is arranged on described crossbeam by described roller.
Above-mentioned pipeline tapping and shutoff three-way pressure testing device are provided with on described structural framing for described walking dolly and the relatively-stationary latch mechanism of described structural framing.
Above-mentioned pipeline tapping and shutoff three-way pressure testing device, described latch mechanism comprises at least one locking screw and at least one pretension pressure cap, one end of described locking screw extend in through hole on described the second end plate, the other end is connected with described walking dolly, and described pretension pressure cap is arranged on described locking screw between described walking dolly and described the second end plate by the internal thread that arranges on it.
Above-mentioned pipeline tapping and shutoff three-way pressure testing device, two plugs are mobile plug, are provided with intake tunnel at least one described mobile plug, and described mobile plug is connected with described plug drive systems.
above-mentioned pipeline tapping and shutoff also comprise structural framing with three-way pressure testing device, and described structural framing comprises crossbeam, the first end plate and the second end plate, the two ends of described crossbeam respectively with described the first end plate be connected the second end plate and be connected, described plug drive system is hydraulic system, described hydraulic system comprises Hydraulic Station, walking dolly and the hydraulic cylinder that is communicated with described Hydraulic Station by hydraulic tube, described hydraulic cylinder comprises the first hydraulic cylinder and the second hydraulic cylinder, described walking dolly comprises the first walking dolly and the second walking dolly, any one in both of the piston rod end of described the second hydraulic cylinder and cylinder body is arranged on described the second end plate, another drives with described the second walking dolly and is connected, any one in both of the piston rod end of described the first hydraulic cylinder and cylinder body is arranged on described the first end plate, another drives with described the first walking dolly and is connected, a described mobile plug drives with described the first walking dolly and is connected, and another described mobile plug drives with described the second walking dolly and is connected, and two described mobile plugs are between described the first walking dolly and described the second walking dolly, described the first walking dolly and described the second walking dolly are equipped with roller on all, and described the first walking dolly and described the second walking dolly are arranged on described crossbeam by the described roller of installing on it respectively.
Above-mentioned pipeline tapping and shutoff three-way pressure testing device, be provided with on described structural framing for described the first walking dolly and described the second walking dolly respectively with the relatively-stationary latch mechanism of described structural framing.
Above-mentioned pipeline tapping and shutoff three-way pressure testing device, described latch mechanism comprise at least two locking screws and at least two pretension pressure caps; One end of a described locking screw extend in through hole on described the second end plate, and the other end is connected with described the second walking dolly; One end of another described locking screw extend in through hole on described the first end plate, and the other end is connected with described the first walking dolly; Described pretension pressure cap is arranged on described locking screw between described the second walking dolly and described the second end plate by the internal thread that arranges on it, and the internal thread of another described pretension pressure cap by setting on it is arranged on described locking screw between described the second walking dolly and described the second end plate.
Utilize above-mentioned pipeline tapping and shutoff with three-way pressure testing device, the pressure-measuring method of pressure testing to be carried out in pipeline tapping and shutoff with threeway, comprise the steps:
(a) by the spacing between two described plugs of the described transportable plug adjusting of described plug drive systems, the pipeline tapping that needs pressure testing and shutoff are placed between two described plugs with threeway, with two described plugs respectively with pipeline tapping and shutoff with in two opening shutoff of threeway in order to form annular seal space in described pipeline tapping and shutoff in threeway;
(b) the pressure testing line of described pressure testing system is communicated with described intake tunnel with injected water in described annular seal space, voltage stabilizing after described annular seal space internal pressure rises to predetermined value;
(c) observe described pipeline tapping and shutoff and with the weld seam in threeway, sealing position and other outer surface portions, whether seepage or leakage are arranged, after observation, test ending, close described pressure testing system release, draining, two described plugs are disassembled from described pipeline tapping and shutoff two openings with threeway, in described annular seal space, remaining water flows out, and the one-hundred-percent inspection work pressure test of namely completing described pipeline tapping and the threeway of shutoff use is removed in described pipeline tapping and shutoff with threeway.
The invention has the beneficial effects as follows: pipeline tapping of the present invention and shutoff are used for the engineerings such as pipeline press and open holes, shutoff and can't harm pressure testing with threeway and pipe fitting with three-way pressure testing device; Has following advantage: 1, need not to weld end socket, pipe fitting is not damaged; 2, save cost, raise the efficiency; 3, compact, easy to operate, the safety of complete machine.
Description of drawings
Fig. 1 is the structural representation that three-way pressure testing device is used in pipeline tapping of the present invention and shutoff;
Fig. 2 is the another kind of structural representation that three-way pressure testing device is used in pipeline tapping of the present invention and shutoff.
In figure: 1-structural framing, 1-1-crossbeam, 1-2-the first end plate, 1-3-the second end plate, the 2-walking dolly, 21-the first walking dolly, 22-the second walking dolly, 2-1-roller, 3-is plug fixedly, the 3-1-intake tunnel, and 4-moves plug, the 5-hydraulic cylinder, 51-the first hydraulic cylinder, 52-the second hydraulic cylinder, 6-Hydraulic Station, 6-1-hydraulic tube, the 7-locking screw, 8-pretension pressure cap, 9-test pump, 9-1-pressure testing pipeline, 10-tensimeter, 11-pipeline tapping and shutoff threeway.
Embodiment
As shown in Figure 1, the pipeline tapping of the present embodiment and shutoff three-way pressure testing device comprise pressure testing system, hydraulic system, fixedly plug 3, mobile plug 4 and structural framing 1; Described mobile plug 4 is plug movably, and described hydraulic system drives with described mobile plug 4 and is connected; Be provided with described intake tunnel 3-1 on described fixedly plug 3, the pressure testing line 9-1 of described pressure testing system is communicated with described intake tunnel 3-1.Described structural framing 1 comprises crossbeam 1-1, the first end plate 1-2 and the second end plate 1-3, and the two ends of described crossbeam 1-1 are welded with described the first end plate 1-2 and described the second end plate 1-3 respectively or be hinged; Described fixedly plug 3 is connected with described the first end plate 1-2 and between described the first end plate 1-2 and described the second end plate 1-3; Described hydraulic system comprises walking dolly 2, Hydraulic Station 6 and the hydraulic cylinder 5 that is communicated with described Hydraulic Station 6 by hydraulic tube 6-1, and the cylinder body of described hydraulic cylinder 5 is arranged on that described the second end plate 1-3 goes up, the piston rod end of described hydraulic cylinder 5 and 2 drivings of described walking dolly are connected to drive described walking dolly 2 and move; Described mobile plug 4 and described walking dolly 2 drive is connected and described mobile plug 4 between described fixedly plug 3 and described walking dolly 2, roller 2-1 and described walking dolly 2 are installed on described walking dolly 2 are arranged on by described roller 2-1 and make the described walking dolly 2 can be along the length direction slip of described crossbeam 1-1 on described crossbeam 1-1.Be provided with on described structural framing 1 for described walking dolly 2 and the relatively-stationary latch mechanism of described structural framing 1.Described latch mechanism comprises two locking screws 7 and two pretension pressure caps 8, one end of described locking screw 7 extend in through hole on described the second end plate 1-3, the other end is connected with described walking dolly 2, and described pretension pressure cap 8 is arranged on respectively on two described locking screws 7 between described walking dolly 2 and described the second end plate 1-3 by the internal thread that arranges on it; Described locking screw 7 can be along the axially-movable of described through hole under the drive of described walking dolly 2, and can described walking dolly 2 is relative fixing with described structural framing 1 by described pretension pressure cap 8, thereby the position of described mobile plug 4 is fixed.For make the present embodiment pipeline tapping and shutoff with three-way pressure testing device in work described fixedly plug 3 and described mobile plug 4 can be better respectively with described pipeline tapping and shutoff two openings sealings with threeway 11, be respectively arranged with sealing gasket or O-ring seal on the outside surface that described fixedly plug 3 and described mobile plug 4 and described pipeline tapping and shutoff contact with the opening inwall of threeway 11.In the present embodiment, the profile of described locking screw 7 can be staged garden post, four directions or gengon.
Utilize the present embodiment pipeline tapping and shutoff with the pressure-measuring method that three-way pressure testing device carries out pressure testing to pipeline tapping and shutoff with threeway 11, comprise the steps:
(a) drive by described hydraulic system the spacing that described mobile plug 4 motions can regulate between described fixedly plug 3 and described mobile plug 4 big or small, the pipeline tapping that needs pressure testing and shutoff are placed between described fixedly plug 3 and described mobile plug 4 with threeway 11, at first with described fixedly plug 3, described pipeline tapping and shutoff are blocked with an opening of threeway 11, then open piston rod end that described hydraulic system stretches out by described hydraulic cylinder 5 drive described walking dolly 2 so that drive described mobile plug 4 with described pipeline tapping and shutoff with in the another one opening shutoff of threeway 11, described walking dolly 2 of while also drives described locking screw mandrel 7 and travels forward, thereby described fixedly plug 3 and described mobile plug 4 are with in described pipeline tapping and 11 two opening shutoff of shutoff use threeway and at described pipeline tapping and the shutoff interior formation annular seal space of threeway 11, by the pretension pressure cap 8 on described locking screw 7, that described walking dolly 2 is relative fixing with described structural framing 1, and then the position of described mobile plug 4 is maintained static so that subsequent step injected water in the described annular seal space,
(b) the pressure testing line 9-1 due to described pressure testing system is communicated with described intake tunnel 3-1, opens test pump 9 with injected water in described annular seal space, voltage stabilizing after described annular seal space internal pressure rises to predetermined value;
(c) the described pipeline tapping of observation and the shutoff weld seam in threeway 11, whether sealing position and other outer surface portions have seepage or leakage, observe, after test ending, close described test pump 9 releases, draining, the piston rod of described hydraulic cylinder 5 is retracted, thereby driving described walking dolly 2 disassembles described mobile plug 4 from described pipeline tapping and the shutoff opening with threeway 11, in described annular seal space, remaining water flows out, the one-hundred-percent inspection work pressure test of namely completing described pipeline tapping and the threeway 11 of shutoff use is removed in described pipeline tapping and shutoff with threeway 11.
Embodiment 2
As shown in Figure 2, the pipeline tapping of the present embodiment and shutoff are with the key distinction of three-way pressure testing device and embodiment 1: two plugs are transportable mobile plug 4; It comprises: pressure testing system (identical with embodiment 1, not shown), hydraulic system, two be mobile plug 4 and structural framing 1 movably; Described hydraulic system drives with described mobile plug 4 and is connected; Be provided with described intake tunnel 3-1 (identical with embodiment 1, not shown) on one of them described mobile plug 4, the pressure testing line 9-1 of described pressure testing system (identical with embodiment 1, not shown) is communicated with described intake tunnel 3-1.described structural framing 1 comprises crossbeam 1-1, the first end plate 1-2 and the second end plate 1-3, and the two ends of described crossbeam 1-1 are welded with described the first end plate 1-2 and described the second end plate 1-3 respectively or be hinged, described hydraulic system comprises Hydraulic Station 6, walking dolly 2 and the hydraulic cylinder 5 that is communicated with described Hydraulic Station 6 by hydraulic tube 6-1, described walking dolly 2 comprises the first walking dolly 21 and the second walking dolly 22, described hydraulic cylinder 5 comprises the first hydraulic cylinder 51 and the second hydraulic cylinder 52, the cylinder body of described the second hydraulic cylinder 52 is arranged on described the second end plate 1-3, the piston rod end of described the second hydraulic cylinder 52 drives with the second walking dolly 22 and is connected, the cylinder body of described the first hydraulic cylinder 51 is arranged on described the first end plate 1-2, the piston rod end of described the first hydraulic cylinder 51 drives with the first walking dolly 21 and is connected, a described mobile plug 4 drives with described the first walking dolly 21 and is connected, and another described mobile plug 4 drives with the second walking dolly 22 and is connected, and two described mobile plugs 4 are between described the first walking dolly 21 and described the second walking dolly 22, described the first walking dolly 21 and described the second walking dolly 22 are equipped with roller 2-1 on all, and described the first walking dolly 21 and described the second walking dolly 22 are arranged on described crossbeam 1-1 by the described roller 2-1 that installs on it respectively.Be provided with on described structural framing 1 for described the first walking dolly 21 and described the second walking dolly 22 respectively with the relatively-stationary latch mechanism of described structural framing 1.Described latch mechanism comprises four locking screws 7 and four pretension pressure caps 8; Wherein an end of two described locking screws 7 extend into respectively in through hole on described the second end plate 1-3, and the other end is connected with described the second walking dolly 22 respectively; One end of two other described locking screw 7 extend into respectively in through hole on described the first end plate 1-2, and the other end is connected with described the first walking dolly 21 respectively; Two described pretension pressure caps 8 are arranged on respectively on described locking screw 7 between described the second walking dolly 22 and described the second end plate 1-3 by the internal thread that arranges on it, and the internal thread of two other described pretension pressure cap 8 by setting on it is arranged on respectively on described locking screw 7 between described the second walking dolly 22 and described the second end plate 1-3.For make the present embodiment pipeline tapping and shutoff with three-way pressure testing device in work two described mobile plugs 4 can be better respectively with described pipeline tapping and shutoff two openings sealings with threeway 11, be respectively arranged with sealing gasket or O-ring seal on the outside surface that two described mobile plugs 4 and described pipeline tapping and shutoff contact with the opening inwall of threeway 11.In the present embodiment, the profile of described locking screw 7 can be staged garden post, four directions or gengon.
Utilize the present embodiment pipeline tapping and shutoff with the pressure-measuring method that three-way pressure testing device carries out pressure testing to pipeline tapping and shutoff with threeway 11, comprise the steps:
(a) drive described mobile plug 4 motions by described hydraulic system and can regulate two spacing sizes between described mobile plug 4, the pipeline tapping that needs pressure testing and shutoff are placed between two described mobile plugs 4 with threeway 11, at first two described mobile plugs 4 are aimed at respectively the opening that threeway 11 is used in described pipeline tapping and shutoff, then open described hydraulic system, the piston rod end that stretches out by described the first hydraulic cylinder 51 and the second hydraulic cylinder 52 respectively drives respectively described the first walking dolly 21 and described the second walking dolly 22, and then drive two described mobile plugs 4 with in described pipeline tapping and two the opening shutoff of threeway 11 of shutoff use, described the first walking dolly 21 of while and described the second walking dolly 22 also drive described locking screw mandrel 7 and travel forward, thereby two described mobile plugs 4 are with in described pipeline tapping and 11 two opening shutoff of shutoff use threeway and at described pipeline tapping and the shutoff interior formation annular seal space of threeway 11, by the pretension pressure cap 8 on described locking screw 7, that described the first walking dolly 21 is relative fixing with described structural framing 1 with described the second walking dolly 22, and then the position of described mobile plug 4 is maintained static so that subsequent step injected water in the described annular seal space,
(b) the pressure testing line 9-1 due to described pressure testing system is communicated with described intake tunnel 3-1, opens test pump 9 (identical with embodiment 1, not shown) with injected water in described annular seal space, voltage stabilizing after described annular seal space internal pressure rises to predetermined value;
(c) the described pipeline tapping of observation and the shutoff weld seam in threeway 11, whether sealing position and other outer surface portions have seepage or leakage, observe, after test ending, close described test pump 9 releases, draining, the piston rod of described the first hydraulic cylinder 51 and described the second hydraulic cylinder 52 is retracted, thereby driving respectively described the first walking dolly 21 and described the second walking dolly 22 disassembles two described mobile plugs 4 from described pipeline tapping and the shutoff opening with threeway 11, in described annular seal space, remaining water flows out, the one-hundred-percent inspection work pressure test of namely completing described pipeline tapping and the threeway 11 of shutoff use is removed in described pipeline tapping and shutoff with threeway 11.
Pipeline tapping in above-described embodiment 1 and embodiment 2 and shutoff are used for the engineerings such as pipeline press and open holes, shutoff and can't harm pressure testing with threeway and pipe fitting with three-way pressure testing device; Has following advantage: 1, need not to weld end socket, pipe fitting is not damaged; 2, save material, save cost, raise the efficiency; 3, compact, easy to operate, the safety of complete machine.
Claims (7)
1. pipeline tapping and shutoff three-way pressure testing device, is characterized in that, comprises pressure testing system, two plugs and plug drive system; Two plugs are respectively fixedly plug (3) and mobile plug (4), and described plug drive system drives with described mobile plug (4) and is connected; Be provided with described intake tunnel (3-1) on described fixedly plug (3) and/or described mobile plug (4), the pressure testing line (9-1) of described pressure testing system is communicated with described intake tunnel (3-1); Described pipeline tapping and shutoff also comprise structural framing (1) with three-way pressure testing device, described structural framing (1) comprises crossbeam (1-1), the first end plate (1-2) and the second end plate (1-3), the two ends of described crossbeam (1-1) respectively with described the first end plate (1-2) be connected the second end plate (1-3) and be connected; Described fixedly plug (3) is connected with described the first end plate (1-2) and is positioned between described the first end plate (1-2) and described the second end plate (1-3); Described plug drive system is hydraulic system, described hydraulic system comprises walking dolly (2), Hydraulic Station (6) and the hydraulic cylinder (5) that is communicated with described Hydraulic Station (6) by hydraulic tube (6-1), and the piston rod end of described hydraulic cylinder (5) and any one during cylinder body is connected are arranged on that described the second end plate (1-3) is gone up, another is connected with described walking dolly (2) driving; Described mobile plug (4) and described walking dolly (2) drive and are connected and are positioned between described fixedly plug (3) and described walking dolly (2), roller (2-1) are installed on described walking dolly (2) and described walking dolly (2) is arranged on described crossbeam (1-1) by described roller (2-1).
2. pipeline tapping according to claim 1 and shutoff three-way pressure testing device, is characterized in that, is provided with on described structural framing (1) for described walking dolly (2) and the relatively-stationary latch mechanism of described structural framing (1).
3. pipeline tapping according to claim 2 and shutoff three-way pressure testing device, it is characterized in that, described latch mechanism comprises at least one locking screw (7) and at least one pretension pressure cap (8), one end of described locking screw (7) extend in through hole on described the second end plate (1-3), the other end is connected with described walking dolly (2), described pretension pressure cap (8) is arranged on described locking screw (7) between described walking dolly (2) and described the second end plate (1-3) by the internal thread that arranges on it.
4. pipeline tapping and shutoff three-way pressure testing device, is characterized in that, comprises pressure testing system, two plugs and plug drive system, two plugs are mobile plug (4), be provided with intake tunnel (3-1) at least one described mobile plug (4), described mobile plug (4) is connected with described plug drive systems, and the pressure testing line (9-1) of described pressure testing system is communicated with described intake tunnel (3-1), described pipeline tapping and shutoff also comprise structural framing (1) with three-way pressure testing device, described structural framing (1) comprises crossbeam (1-1), the first end plate (1-2) and the second end plate (1-3), the two ends of described crossbeam (1-1) respectively with described the first end plate (1-2) be connected the second end plate (1-3) and be connected, described plug drive system is hydraulic system, described hydraulic system comprises Hydraulic Station (6), walking dolly (2) and the hydraulic cylinder (5) that is communicated with described Hydraulic Station (6) by hydraulic tube (6-1), described walking dolly (2) comprises the first walking dolly (21) and the second walking dolly (22), described hydraulic cylinder (5) comprises the first hydraulic cylinder (51) and the second hydraulic cylinder (52), any one in both of the piston rod end of described the second hydraulic cylinder (52) and cylinder body is arranged on described the second end plate (1-3), another drives with described the second walking dolly (22) and is connected, any one in both of the piston rod end of described the first hydraulic cylinder (51) and cylinder body is arranged on described the first end plate (1-2), another drives with described the first walking dolly (21) and is connected, a described mobile plug (4) drives with described the first walking dolly (21) and is connected, another described mobile plug (4) drives with described the second walking dolly (22) and is connected, and two described mobile plugs (4) are positioned between described the first walking dolly (21) and described the second walking dolly (22), described the first walking dolly (21) and described the second walking dolly (22) are equipped with roller (2-1) on all, and described the first walking dolly (21) and described the second walking dolly (22) are arranged on described crossbeam (1-1) by the described roller (2-1) of installing on it respectively.
5. pipeline tapping according to claim 4 and shutoff three-way pressure testing device, it is characterized in that, be provided with on described structural framing (1) for described the first walking dolly (21) and described the second walking dolly (22) respectively with the relatively-stationary latch mechanism of described structural framing (1).
6. pipeline tapping according to claim 5 and shutoff three-way pressure testing device, is characterized in that, described latch mechanism comprises at least two locking screws (7) and at least two pretension pressure caps (8); One end of a described locking screw (7) extend in through hole on described the second end plate (1-3), and the other end is connected with described the second walking dolly (22); One end of another described locking screw (7) extend in through hole on described the first end plate (1-2), and the other end is connected with described the first walking dolly (21); A described pretension pressure cap (8) is arranged on described locking screw (7) between described the second walking dolly (22) and described the second end plate (1-3) by the internal thread that arranges on it, and the internal thread of another described pretension pressure cap (8) by setting on it is arranged on described locking screw (7) between described the second walking dolly (22) and described the second end plate (1-3).
7. utilize the arbitrary described pipeline tapping of claim 1-6 and shutoff with three-way pressure testing device, the pressure-measuring method of pressure testing to be carried out in pipeline tapping and shutoff with threeway, it is characterized in that, comprise the steps:
(a) by the spacing between two described plugs of the described transportable plug adjusting of described plug drive systems, the pipeline tapping that needs pressure testing and shutoff are placed between two described plugs with threeway (11), with two described plugs respectively with pipeline tapping and shutoff with in two opening shutoff of threeway (11) in case described pipeline tapping and shutoff with threeway (11) in the formation annular seal space;
(b) the pressure testing line (9-1) of described pressure testing system is communicated with described intake tunnel (3-1) with injected water in described annular seal space, voltage stabilizing after described annular seal space internal pressure rises to predetermined value;
(c) observe described pipeline tapping and shutoff and with the weld seam in threeway (11), sealing position and other outer surface portions, whether seepage or leakage are arranged, after observation, test ending, close described pressure testing system release, draining, two described plugs are disassembled from described pipeline tapping and shutoff two openings with threeway (11), in described annular seal space, remaining water flows out, and the one-hundred-percent inspection work pressure test of namely completing described pipeline tapping and shutoff use threeway (11) is removed in described pipeline tapping and shutoff with threeway (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110039520 CN102175402B (en) | 2011-02-17 | 2011-02-17 | Tee pressure-testing device and method for pipeline punching and pipeline plugging |
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| CN 201110039520 CN102175402B (en) | 2011-02-17 | 2011-02-17 | Tee pressure-testing device and method for pipeline punching and pipeline plugging |
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| CN102175402A CN102175402A (en) | 2011-09-07 |
| CN102175402B true CN102175402B (en) | 2013-06-05 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102313631B (en) * | 2011-05-31 | 2013-05-08 | 山东力诺瑞特新能源有限公司 | Water-testing seal plug and water testing method thereof |
| CN102879193B (en) * | 2012-10-26 | 2015-08-26 | 青岛德盛机械制造有限公司 | A kind of blocking pressure-bearing pick-up unit |
| CN104977133B (en) * | 2014-04-09 | 2018-09-18 | 中国石油化工股份有限公司 | Device for the pressure bearing and seal for detecting two-stage cementing tool |
| CN105841889A (en) * | 2016-04-27 | 2016-08-10 | 苏州富强科技有限公司 | Seal assembly for sliding reset mechanism |
| CN106706435B (en) * | 2016-12-16 | 2023-08-18 | 盐城市大冈石油工具厂有限责任公司 | Full-hydraulic multifunctional pressure testing device |
| CN108287064A (en) * | 2017-12-28 | 2018-07-17 | 沪东重机有限公司 | A kind of pressure test method of diesel air cooler bracket |
| CN108709694B (en) * | 2018-03-28 | 2020-06-05 | 中铁十二局集团有限公司 | Water tightness testing device and testing method suitable for tunnel shield arc-shaped duct piece |
| CN112857707A (en) * | 2021-02-04 | 2021-05-28 | 上海洋深市政工程有限公司 | Underground pipeline water leakage detection device and detection method thereof |
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| CN102175402A (en) | 2011-09-07 |
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Owner name: TIANJIN LVQING PIPELINE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: TIANJIN LUQING PIPELINE TECHNOLOGY DEVELOPMENT CO., LTD. |
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Address after: 301712, Wuqing District, Tianjin City, the ancient town of King Zhuang Economic Zone Patentee after: TIANJIN GREENTSING PIPELINE TECHNOLOGY CO., LTD. Address before: 301712 Tianjin District of Wuqing City Industrial Park Road No. 8 Keihin Taiyuan Patentee before: Tianjin Luqing Pipeline Technology Development Co., Ltd. |