CN103207051B - Pipeline air tightness detection sealing device, pipeline air tightness detection system and pipeline air tightness detection method - Google Patents
Pipeline air tightness detection sealing device, pipeline air tightness detection system and pipeline air tightness detection method Download PDFInfo
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- CN103207051B CN103207051B CN201210010432.1A CN201210010432A CN103207051B CN 103207051 B CN103207051 B CN 103207051B CN 201210010432 A CN201210010432 A CN 201210010432A CN 103207051 B CN103207051 B CN 103207051B
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- 238000007789 sealing Methods 0.000 title claims abstract description 64
- 238000001514 detection method Methods 0.000 title claims abstract description 59
- 238000012360 testing method Methods 0.000 claims abstract description 107
- 238000002347 injection Methods 0.000 claims description 30
- 239000007924 injection Substances 0.000 claims description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000007689 inspection Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a pipeline air tightness detection sealing device, a pipeline air tightness detection system and a pipeline air tightness detection method. The invention discloses a sealing device for detecting the air tightness of a pipeline, which comprises: the pipeline to be tested is inserted in the gap; and a secondary sealing device for pressing the inner wall sealing component and the outer wall sealing component against each other. The pipeline airtightness detection system at least comprises the pipeline airtightness detection sealing device arranged at one end of the pipeline to be detected. The invention also provides a pipeline air tightness detection method. According to the invention, the inner side and the outer side of the end part of the pipeline are respectively sealed through the inner wall sealing assembly and the outer wall sealing assembly, so that a cavity inside the pipeline is sealed, the inner wall sealing assembly injects gas into the inner cavity of the pipeline, the air tightness of the pipeline is detected by testing the pressure change of the inner cavity, the pipeline sealing device is convenient and practical, and the testing efficiency is improved.
Description
Technical field
The present invention relates to pipe detection field, in particular to a kind of pipeline air-leakage test packoff, pipeline air tightness detection system and method.
Background technology
Current drainpipe air-leakage test is water inspection operation.Detection labour intensity is large, and production efficiency is low, and human users is intensive.There is inspection blind area simultaneously, cause the quality of production to fluctuate bigger than normal.And water inspection not only needs to dry for drainpipe outside surface water needs, cause production efficiency low, go back waste water resource simultaneously and cause water resource pollution.
Summary of the invention
The present invention aims to provide a kind of easy to operate, pipeline air-leakage test packoff, pipeline air tightness detection system and method for providing detection efficiency.
The invention provides a kind of pipeline air-leakage test packoff, comprising: inner wall sealing assembly and outer wall seal assembly, leave gap between inner wall sealing assembly and outer wall seal assembly, pipe under test is plugged in gap; And the auxiliary sealing device that inner wall sealing assembly and outer wall seal assembly are extruded mutually.
Further, inner wall sealing assembly comprises the air injection opening be fixedly installed and the inner wall sealing part be set on air injection opening; Outer wall seal assembly comprises the sealing shroud be fixedly installed and the sleeve shaped outer wall seal be arranged on inside sealing shroud; The first end of sealing shroud is provided with inward flange, and one end of outer wall seal is connected on inward flange, and the second end of sealing shroud is opening shape.
Further, sealing servicing unit also comprises power source and to be connected with power source and by the pushing set of power source push-and-pull, and pushing set to be set on air injection opening and to be arranged on the side of outer wall seal movably.
Further, power source is cylinder or hydraulic cylinder or motor.
Further, air injection opening arranges injecting hole, and the end of injecting hole is provided with the threaded portion for fixing injecting hole plug.
Further, the material of inner wall sealing part and outer wall seal is rubber or silica gel.
Present invention also offers a kind of pipeline air tightness detection system, at least comprise the aforesaid pipeline air-leakage test packoff being arranged on pipe under test one end.
Further, pipeline air tightness detection system comprises many compositions to the pipeline air-leakage test packoff arranged, and pipe under test two ends to be plugged on respectively on often pair of pipeline air-leakage test packoff and to seal.
Further, the injecting hole being arranged on often pair of pipeline air-leakage test packoff at pipe under test two ends is interconnected by pipe under test, and forms closed cavity with pipe under test inner chamber; Pipeline air tightness detection system also comprises source of the gas and controls the solenoid valve of source of the gas to closed cavity air feed.
Further, pipeline air tightness detection system also comprises pressure-detecting device, pressure-detecting device and closed cavity conducting.
Further, pipeline air tightness detection system also comprises control device and display device, the air pressure Controlling solenoid valve opening and closing that control device detects according to pressure-detecting device and judge that the impermeability state of pipe under test also shows impermeability state on the display apparatus.
Present invention also offers a kind of pipeline air-tightness detection method, comprise the following steps: step S01: in the threaded portion of injecting hole end, fixing gas injection port plug is installed, the impermeability of pick-up unit itself, if impermeability is good, unloads gas injection port plug; Step S02: install pipe under test, pipe under test is connected on the pipeline air-leakage test packoff of aforementioned tubular duct air tightness detection system; Step S03: pinch seal, starts pipeline air tightness detection system, and the power source of pipeline air-leakage test packoff promotes pushing set extruding outer wall seal, makes the equal fixing seal in pipe under test two ends; Step S04: gas injection pressurize, the solenoid valve of pipeline air tightness detection system is opened, make the closed cavity air feed that source of the gas is formed to injecting hole and pipe under test inner chamber, when in pressure-detecting device detection closed cavity, air pressure reaches preset range, control device Controlling solenoid valve is closed and pressurize; Step S05: judge impermeability, in preset time range, if closed cavity internal gas pressure is constant or pressure drop in preset range, then think that the impermeability of pipe under test is good, otherwise then pipe under test impermeability is bad; Step S06: take off pipe under test, according to testing result sorting placement.
According to pipeline air-leakage test packoff of the present invention, pipeline air tightness detection system and method, by inner wall sealing assembly and outer wall seal assembly, pipe end inner side and outer side is sealed, make the cavities seals of pipe interior, inner wall sealing assembly is to inner cavity of pipe internal gas injection, testing pipes impermeability is carried out by the pressure change testing inner chamber, convenient and practical, improve testing efficiency, ensure Detection job, decrease waste and the pollution of water resource simultaneously.In addition, pipeline air tightness detection system of the present invention can detect the impermeability of self, determine the impermeability of system good after, then carry out detections operation, the accuracy of guarantee systems axiol-ogy.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation according to pipeline air-leakage test packoff of the present invention;
Fig. 2 is the structural representation according to pipeline air tightness detection system of the present invention; And
Fig. 3 is according to pipeline air-tightness detection method process flow diagram of the present invention.
Embodiment
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As depicted in figs. 1 and 2, according to pipeline air-leakage test packoff of the present invention, comprising: inner wall sealing assembly 10 and outer wall seal assembly 20, leave gap between inner wall sealing assembly 10 and outer wall seal assembly 20, pipe under test 40 is plugged in gap; And inner wall sealing assembly 10 and the mutual auxiliary sealing device 30 extruded of outer wall seal assembly 20 is made after inserting pipe under test 40 in gap.By auxiliary sealing device 30, inner wall sealing assembly and outer wall seal assembly being extruded mutually makes pipe end inner side and outer side seal.
Preferably, inner wall sealing assembly 10 comprises the air injection opening 11 be fixedly installed and the inner wall sealing part 12 be set on air injection opening 11, and outer wall seal assembly 20 comprises the sealing shroud 21 be fixedly installed and the sleeve shaped outer wall seal 22 be arranged on inside sealing shroud 21; Pipe under test 40 is plugged on air injection opening 11, and inner wall sealing part 12 and outer wall seal 22 lay respectively at the inner side and outer side of pipe under test 40.
More preferably, the first end of sealing shroud 21 is provided with inward flange, and one end of outer wall seal 22 is connected on inward flange, and the second end of sealing shroud 21 is opening shape.Extruding outer wall seal 22 by auxiliary sealing device 30 makes outer wall seal 22 compress pipe under test outer wall, make pipe under test 40 inwall be pressed on inner wall sealing part 12 simultaneously, thus make the cavities seals of pipe under test 40 inside, the air injection opening 11 of inner wall sealing assembly is for inner cavity of pipe internal gas injection, testing pipes impermeability is carried out by the pressure change testing inner chamber, convenient and practical, improve testing efficiency.
Auxiliary sealing device 30 also comprises power source 31 and to be connected with power source 31 and by the pushing set 32 of power source 31 push-and-pull, pushing set 32 is set in side air injection opening 11 being also arranged on movably outer wall seal 22, power source 31 promotes pushing set 32 and extrudes outer wall seal 22, outer wall seal 22 stress and deformation.Because sealing shroud 21 limits outer wall seal 22 deformation laterally, outer wall seal 22 is extrusion pipe tube wall to the inside, and make pipe wall be pressed on inner wall sealing part 12, the interior outside of such pipe wall all seals.When use two pipeline air-leakage test packoffs are connected to pipe ends, namely inner cavity of pipe can seal.Preferably, power source 31 is cylinder or hydraulic cylinder or motor.
Air injection opening 11 is provided with injecting hole 11a, and preferably, injecting hole 11a axially extends along air injection opening 11, and injecting hole 11a is used for the inner injecting gas of inner cavity of pipe to sealing.Preferably, the end of injecting hole 11a is provided with the threaded portion 11b for fixing injecting hole plug, and injecting hole plug is used for sealed gas-filling hole 11a, facilitates the impermeability of testing pipes air-leakage test packoff itself.
Preferably, the material of inner wall sealing part 12 and outer wall seal 22 is rubber or silica gel, convenient and practical, compression deformation.
As shown in Figure 2, present invention also offers a kind of pipeline air tightness detection system, at least comprise the aforesaid pipeline air-leakage test packoff of the first end 40a being arranged on pipe under test 40, the first end 40a of pipe under test 40 is by the sealing of pipeline air-leakage test packoff, the other end of pipe under test 40 is by other means as the modes such as cramping seal, thus pipe under test 40 inner chamber forms sealing, by pipeline air-leakage test packoff to inner cavity of pipe injecting gas.
Preferably, pipeline air tightness detection system comprises many compositions to the pipeline air-leakage test packoff arranged, often pair of pipeline air-leakage test packoff is two, and pipe under test two ends 40a, 40b to be plugged on respectively on often pair of pipeline air-leakage test packoff and to seal.Thus the injecting hole 11a of often pair of pipeline air-leakage test packoff is interconnected by pipe under test 40, and form closed cavity with pipe under test 40 inner chamber;
More preferably, pipeline air tightness detection system also comprises source of the gas 50 and controls the solenoid valve 60 of source of the gas 50 to closed cavity air feed, when solenoid valve 60 is opened, source of the gas 50 by the injecting hole 11a on air injection opening 11 to injecting gas in inner cavity of pipe.
Pipeline air tightness detection system also comprises the pressure-detecting device 70 with closed cavity conducting, and pressure-detecting device 70 is for detecting the air pressure in closed cavity.
Pipeline air tightness detection system also comprises control device 80 and display device, the air pressure Controlling solenoid valve 60 that control device 80 detects according to pressure-detecting device 70 and judge that the impermeability state of pipe under test 40 also shows impermeability state on the display apparatus.Preferably, display device can be three look display lamps, or alarm etc., when pressure change exceedes the scope preset, then think that pipeline impermeability is bad, display lamp display is red, or alarm equipment alarm.
As shown in Figure 3, present invention also offers a kind of pipeline air-tightness detection method, comprise the following steps:
Step S01: the threaded portion 11b in injecting hole 11a end installs fixing gas injection port plug, the impermeability of pick-up unit itself, if impermeability is good, unloads gas injection port plug;
Step S02: install pipe under test 40, pipe under test 40 is plugged on the pipeline air-leakage test packoff of aforesaid pipeline air tightness detection system, in its natural state, pipeline air-leakage test packoff, there is certain space between inner wall sealing part 12 and outer wall seal 22, make in insertion pipe under test 40 to air injection opening more convenient.
Step S03: pinch seal, start pipeline air tightness detection system, the power source 31 of pipeline air-leakage test packoff promotes pushing set 32 and extrudes outer wall seal 22, makes pipe under test two ends 40a, the equal fixing seal of 40b.
Step S04: gas injection pressurize, the closed cavity air feed that source of the gas 50 is formed to injecting hole 11a and pipe under test 40 inner chamber opened by the solenoid valve 60 of pipeline air tightness detection system, when pressure-detecting device 70 detects that in closed cavity, air pressure reaches preset range, control device 80 Controlling solenoid valve 60 is closed and is kept pressure certain hour.
Step S05: judge impermeability, in preset time range, if closed cavity internal gas pressure is constant or pressure drop in preset range, then think that the impermeability of pipe under test 40 is good, if instead pressure drop exceedes predetermined scope, then think that pipe under test 40 impermeability is bad, alarm equipment alarm reminds operating personnel.
Step S06: power source 31 pulls pushing set 32, makes pushing set 32 no longer extrude outer wall seal, and confined space internal gas discharges, and takes off pipe under test, and according to testing result sorting placement, one is detected circulation and completes.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
According to pipeline air-leakage test packoff of the present invention, pipeline air tightness detection system and method, respectively pipe end inner side and outer side is sealed by the inner wall sealing part on inner wall sealing assembly and outer wall seal assembly and outer wall seal, make the cavities seals of pipe interior, the air injection opening of inner wall sealing assembly is used for inner cavity of pipe internal gas injection, testing pipes impermeability is carried out by the pressure change testing inner chamber, convenient and practical, improve testing efficiency, ensure Detection job, decrease waste and the pollution of water resource simultaneously.Meanwhile, pipeline air tightness detection system of the present invention can detect the impermeability of self, determine the impermeability of system good after, then carry out detections operation, the accuracy of guarantee systems axiol-ogy.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a pipeline air-leakage test packoff, is characterized in that, comprising:
Inner wall sealing assembly (10) and outer wall seal assembly (20), leave gap between described inner wall sealing assembly (10) and outer wall seal assembly (20), pipe under test (40) is plugged in described gap; And
Make the auxiliary sealing device (30) that described inner wall sealing assembly (10) and outer wall seal assembly (20) extrude mutually;
Described inner wall sealing assembly (10) comprises the air injection opening (11) be fixedly installed and the inner wall sealing part (12) be set on described air injection opening (11);
Described outer wall seal assembly (20) comprises the sealing shroud (21) be fixedly installed and the sleeve shaped outer wall seal (22) being arranged on described sealing shroud (21) inner side;
The first end of described sealing shroud (21) is provided with inward flange, and one end of described outer wall seal (22) is connected on described inward flange, and the second end of described sealing shroud (21) is opening shape.
2. pipeline air-leakage test packoff according to claim 1, is characterized in that,
Described auxiliary sealing device (30) also comprises power source (31) and to be connected with described power source (31) and by the pushing set (32) of described power source (31) push-and-pull, and it is upper and be arranged on the side of described outer wall seal (22) movably that described pushing set (32) is set in air injection opening (11).
3. pipeline air-leakage test packoff according to claim 2, is characterized in that,
Described power source (31) is cylinder or hydraulic cylinder or motor.
4. pipeline air-leakage test packoff according to claim 1, is characterized in that,
Described air injection opening (11) arranges injecting hole (11a), and the end of described injecting hole (11a) is provided with the threaded portion (11b) for fixing injecting hole plug.
5. pipeline air-leakage test packoff according to claim 1, is characterized in that,
The material of described inner wall sealing part (12) and described outer wall seal (22) is rubber or silica gel.
6. a pipeline air tightness detection system, is characterized in that,
Comprise the pipeline air-leakage test packoff according to any one of claim 1 to 5;
Described pipeline air-leakage test packoff is arranged on one end (40a) of pipe under test.
7. pipeline air tightness detection system according to claim 6, is characterized in that,
Described pipeline air tightness detection system comprises many compositions to the described pipeline air-leakage test packoff arranged;
Described pipe under test two ends (40a, 40b) to be plugged on respectively on often pair of described pipeline air-leakage test packoff and to seal.
8. pipeline air tightness detection system according to claim 7, is characterized in that,
Be arranged on described pipe under test two ends (40a, the injecting hole (11a) of 40b) often pair described pipeline air-leakage test packoff is interconnected by described pipe under test (40), and forms closed cavity with pipe under test (40) inner chamber;
Described pipeline air tightness detection system also comprises source of the gas (50) and controls the solenoid valve (60) of described source of the gas (50) to described closed cavity air feed.
9. pipeline air tightness detection system according to claim 8, is characterized in that,
Described pipeline air tightness detection system also comprises pressure-detecting device (70), described pressure-detecting device (70) and described closed cavity conducting.
10. pipeline air tightness detection system according to claim 9, is characterized in that,
Described pipeline air tightness detection system also comprises the control device (80) be connected with described pressure-detecting device (70) and the display device be connected with described control device (80), and described control device (80) controls described solenoid valve (60) opening and closing according to the air pressure that described pressure-detecting device (70) detects and judges the impermeability state of pipe under test (40) and show described impermeability state on said display means.
11. 1 kinds of pipeline air-tightness detection methods, is characterized in that, comprise the following steps:
Step S01: the injecting hole (11a) of the pipeline air-leakage test packoff of the pipeline air tightness detection system according to any one of claim 6 to 10 is upper installs gas injection port plug, detect the impermeability of this pipeline air-leakage test packoff itself, if impermeability is good, unload gas injection port plug;
Step S02: install pipe under test (40), described pipe under test (40) is connected on described pipeline air-leakage test packoff;
Step S03: pinch seal, start described pipeline air tightness detection system, the power source (31) of described pipeline air-leakage test packoff promotes pushing set (32) extruding outer wall seal (22), make pipe under test two ends (40a, 40b) all fixing seals;
Step S04: gas injection pressurize, the solenoid valve (60) of described pipeline air tightness detection system is opened, make the closed cavity air feed that source of the gas (50) is formed to described injecting hole (11a) and described pipe under test (40) inner chamber, when the air pressure that the pressure-detecting device (70) of described pipeline air tightness detection system detects in described closed cavity reaches preset range, the control device (80) of described pipeline air tightness detection system controls described solenoid valve (60) and cuts out and pressurize;
Step S05: judge impermeability, in preset time range, if described closed cavity internal gas pressure is constant or pressure drop in preset range, then think that the impermeability of described pipe under test (40) is good, otherwise then pipe under test (40) impermeability is bad;
Step S06: take off pipe under test, according to testing result sorting placement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210010432.1A CN103207051B (en) | 2012-01-12 | 2012-01-12 | Pipeline air tightness detection sealing device, pipeline air tightness detection system and pipeline air tightness detection method |
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| CN201210010432.1A CN103207051B (en) | 2012-01-12 | 2012-01-12 | Pipeline air tightness detection sealing device, pipeline air tightness detection system and pipeline air tightness detection method |
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| CN103207051B true CN103207051B (en) | 2015-12-02 |
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|---|---|---|---|---|
| CN107253048A (en) * | 2017-06-19 | 2017-10-17 | 合肥球球科技有限公司 | The air-leakage test and the mouth of pipe of automobile pipeline keep circle to install integral frock |
| CN107253048B (en) * | 2017-06-19 | 2019-06-04 | 十堰市倍力汽车管业有限公司 | The air-leakage test and nozzle of automobile pipeline keep circle to install integrated tooling |
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|---|---|
| CN103207051A (en) | 2013-07-17 |
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