CN103207051A - 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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- CN103207051A CN103207051A CN2012100104321A CN201210010432A CN103207051A CN 103207051 A CN103207051 A CN 103207051A CN 2012100104321 A CN2012100104321 A CN 2012100104321A CN 201210010432 A CN201210010432 A CN 201210010432A CN 103207051 A CN103207051 A CN 103207051A
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- 238000007789 sealing Methods 0.000 title claims abstract description 73
- 238000001514 detection method Methods 0.000 title claims abstract description 60
- 238000012360 testing method Methods 0.000 claims abstract description 62
- 238000002347 injection Methods 0.000 claims description 30
- 239000007924 injection Substances 0.000 claims description 30
- 238000001125 extrusion Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000463 material 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
- 238000009434 installation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 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
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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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 the pipe detection field, detect packoff, the airtight property detection system of pipeline and method in particular to a kind of pipeline impermeability.
Background technology
The drainpipe impermeability detects and is water inspection operation at present.Detection labour intensity is big, and production efficiency is low, and personnel operation is intensive.There is the check blind area simultaneously, causes quality of production fluctuation bigger than normal.And the water inspection not only need need be dried for drainpipe outside surface water, causes production efficiency low, goes back waste water resource simultaneously and causes water resource pollution.
Summary of the invention
The present invention aims to provide a kind of pipeline impermeability easy to operate, that detection efficiency is provided and detects packoff, the airtight property detection system of pipeline and method.
The invention provides a kind of pipeline impermeability and detect packoff, comprising: inner wall sealing assembly and outer wall seal assembly, leave the gap between inner wall sealing assembly and the outer wall seal assembly, pipe under test is plugged in the gap; And the auxiliary sealing device that makes inner wall sealing assembly and outer wall seal assembly mutual extrusion.
Further, the inner wall sealing assembly comprises the air injection opening that fixedly installs and the inner wall sealing spare that is set on the air injection opening; The outer wall seal assembly comprises the sealing shroud that fixedly installs and is arranged on the sleeve shaped outer wall seal of sealing shroud inboard; First end of sealing shroud is provided with inward flange, and an end of outer wall seal is connected on the inward flange, and second end of sealing shroud is the opening shape.
Further, the sealing servicing unit also comprises power source and is connected with power source and by the promotion cover of power source push-and-pull, promotes to be set in a side that also is arranged on the outer wall seal on the air injection opening 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 for the fixing threaded portion of injecting hole plug.
Further, the material of inner wall sealing spare and outer wall seal is rubber or silica gel.
The present invention also provides a kind of pipeline airtight property detection system, comprises that at least the aforesaid pipeline impermeability that is arranged on pipe under test one end detects packoff.
Further, the airtight property detection system of pipeline comprises that the pipeline impermeability of forming arranging detect packoff more, and the pipe under test two ends are plugged on every pair of pipeline impermeability respectively and detect on the packoff and sealing.
Further, the injecting hole that is arranged on every pair of pipeline impermeability detection packoff at pipe under test two ends is interconnected by pipe under test, and forms closed cavity with the pipe under test inner chamber; The airtight property detection system of pipeline also comprises source of the gas and controls source of the gas to the solenoid valve of closed cavity air feed.
Further, the airtight property detection system of pipeline also comprises pressure-detecting device, pressure-detecting device and closed cavity conducting.
Further, the airtight property detection system of pipeline also comprises control device and display device, and the air pressure control solenoid valve that control device detects according to pressure-detecting device opens and closes and judges the impermeability state of pipe under test and show the impermeability state in display device.
The present invention also provides a kind of pipeline air-tightness detection method, may further comprise the steps: step S01: install and fix the gas injection port plug in the threaded portion of injecting hole end, the impermeability of pick-up unit itself if impermeability is good, unloads the gas injection port plug; Step S02: pipe under test is installed, and the pipeline impermeability that pipe under test is connected aforementioned pipeline impermeability detection system detects on the packoff; Step S03: clamp sealing, start the airtight property detection system of pipeline, the power source that the pipeline impermeability detects packoff promotes cover extruding outer wall seal, makes the equal fixing seal in pipe under test two ends; Step S04: gas injection pressurize, the solenoid valve of the airtight property detection system of pipeline is opened, make source of the gas to the closed cavity air feed of injecting hole and the formation of pipe under test inner chamber, when air pressure reaches preset range in the pressure-detecting device detection closed cavity, control device control closed electromagnetic valve and pressurize; Step S05: judge impermeability, in the Preset Time scope, if the closed cavity internal gas pressure is constant or pressure descends in preset range, think that then the impermeability of pipe under test is good, otherwise then the pipe under test impermeability is bad; Step S06: take off pipe under test, classification is placed according to testing result.
Detect packoff, the airtight property detection system of pipeline and method according to pipeline impermeability of the present invention, inboard and the outer side seal to pipe end by inner wall sealing assembly and outer wall seal assembly, make the cavity sealing of pipe interior, the inner wall sealing assembly is to the inner gas injection of inner cavity of pipe, pressure by the test inner chamber changes to detect the pipeline impermeability, and is convenient and practical, improves testing efficiency, guarantee to detect quality, reduced waste and the pollution of water resource simultaneously.In addition, the airtight property detection system of pipeline of the present invention can detect the impermeability of self, determined that the impermeability of system is good after, detect operation again, the accuracy that the assurance system detects.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation that detects packoff according to pipeline impermeability of the present invention;
Fig. 2 is the structural representation according to the airtight property detection system of pipeline of the present invention; And
Fig. 3 is according to pipeline air-tightness detection method process flow diagram of the present invention.
Embodiment
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As depicted in figs. 1 and 2, detect packoff according to pipeline impermeability of the present invention, comprising: inner wall sealing assembly 10 and outer wall seal assembly 20, leave the gap between inner wall sealing assembly 10 and the outer wall seal assembly 20, pipe under test 40 is plugged in the gap; And the auxiliary sealing device 30 that is used for after pipe under test 40 is inserted in the gap, making inner wall sealing assembly 10 and outer wall seal assembly 20 mutual extrusion.Make inner wall sealing assembly and outer wall seal assembly mutual extrusion make the inboard and outer side seal of pipe end by auxiliary sealing device 30.
Preferably, inner wall sealing assembly 10 comprises that the air injection opening 11 that fixedly installs and the inner wall sealing spare 12 that is set on the air injection opening 11, outer wall seal assembly 20 comprise the sealing shroud 21 that fixedly installs and the sleeve shaped outer wall seal 22 that is arranged on sealing shroud 21 inboards; Pipe under test 40 is plugged on the air injection opening 11, and inner wall sealing spare 12 and outer wall seal 22 lay respectively at inboard and the outside of pipe under test 40.
More preferably, first end of sealing shroud 21 is provided with inward flange, and an end of outer wall seal 22 is connected on the inward flange, and second end of sealing shroud 21 is the opening shape.Make outer wall seal 22 compress the pipe under test outer wall by auxiliary sealing device 30 extruding outer wall seals 22, pipe under test 40 inwalls are pressed on the inner wall sealing spare 12, thereby make the cavity sealing of pipe under test 40 inside, the air injection opening 11 of inner wall sealing assembly is used for to the inner gas injection of inner cavity of pipe, pressure by the test inner chamber changes to detect the pipeline impermeability, convenient and practical, improve testing efficiency.
Preferably, the material of inner wall sealing spare 12 and outer wall seal 22 is rubber or silica gel, and is convenient and practical, compression deformation.
As shown in Figure 2, the present invention also provides a kind of pipeline airtight property detection system, at least the aforesaid pipeline impermeability that comprises the first end 40a that is arranged on pipe under test 40 detects packoff, the first end 40a of pipe under test 40 detects the packoff sealing by the pipeline impermeability, the other end of pipe under test 40 seals as modes such as crampings by other means, thereby pipe under test 40 inner chambers form sealing, detect packoff to the inner cavity of pipe injecting gas by the pipeline impermeability.
Preferably, the airtight property detection system of pipeline comprises that the pipeline impermeability of forming arranging detect packoff more, it is two that every pair of pipeline impermeability detects packoff, and pipe under test two ends 40a, 40b are plugged on every pair of pipeline impermeability respectively and detect on the packoff and sealing.Thereby the injecting hole 11a that makes every pair of pipeline impermeability detect packoff is interconnected by pipe under test 40, and forms closed cavity with pipe under test 40 inner chambers;
More preferably, the airtight property detection system of pipeline also comprises source of the gas 50 and control source of the gas 50 to the solenoid valve 60 of closed cavity air feed, and when solenoid valve 60 was opened, source of the gas 50 was by the injecting gas in the inner cavity of pipe of the injecting hole 11a on the air injection opening 11.
The airtight property detection system of pipeline comprises also and the pressure-detecting device 70 of closed cavity conducting that pressure-detecting device 70 is for detection of the air pressure in the closed cavity.
The airtight property detection system of pipeline also comprises control device 80 and display device, and control device 80 shows the impermeability state according to the air pressure control solenoid valve 60 that pressure-detecting device 70 detects with the impermeability state of judging pipe under test 40 and in display device.Preferably, display device can be three look display lamps, and perhaps alarm etc. when pressure changes when surpassing predefined scope, thinks that then the pipeline impermeability is bad, and display lamp shows red, perhaps alarm equipment alarm.
As shown in Figure 3, the present invention also provides a kind of pipeline air-tightness detection method, may further comprise the steps:
Step S01: the threaded portion 11b in injecting hole 11a end installs and fixes the gas injection port plug, and the impermeability of pick-up unit itself if impermeability is good, unloads the gas injection port plug;
Step S02: pipe under test 40 is installed, the pipeline impermeability that pipe under test 40 is plugged on the airtight property detection system of aforesaid pipeline detects on the packoff, under state of nature, the pipeline impermeability detects packoff, there is certain space between inner wall sealing spare 12 and the outer wall seal 22, makes that to insert pipe under test 40 more convenient to the air injection opening.
Step S03: clamp sealing, start the airtight property detection system of pipeline, the power source 31 that the pipeline impermeability detects packoff promotes cover 32 extruding outer wall seals 22, makes pipe under test two ends 40a, the equal fixing seal of 40b.
Step S04: gas injection pressurize, the solenoid valve 60 of the airtight property detection system of pipeline is opened and is made source of the gas 50 to the closed cavity air feed of injecting hole 11a and the formation of pipe under test 40 inner chambers, when pressure-detecting device 70 detects that air pressure reaches preset range in the closed cavities, control device 80 control solenoid valves 60 certain hour of closing and keep-up pressure.
Step S05: judge impermeability, in the Preset Time scope, if the closed cavity internal gas pressure is constant or pressure descends in preset range, think that then the impermeability of pipe under test 40 is good, if instead descending, pressure surpasses predetermined scope, think that then pipe under test 40 impermeability are bad, alarm equipment alarm is reminded operating personnel.
Step S06: power source 31 pullings promote cover 32, make promotion cover 32 no longer push the outer wall seal, and the confined space internal gas discharges, and takes off pipe under test, and classification is placed according to testing result, and a detection circulation is finished.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
Detect packoff, the airtight property detection system of pipeline and method according to pipeline impermeability of the present invention, by the inner wall sealing spare on inner wall sealing assembly and the outer wall seal assembly and the inboard and outer side seal to pipe end respectively of outer wall seal, make the cavity sealing of pipe interior, the air injection opening of inner wall sealing assembly is used for to the inner gas injection of inner cavity of pipe, pressure by the test inner chamber changes to detect the pipeline impermeability, convenient and practical, improve testing efficiency, guarantee to detect quality, reduced waste and the pollution of water resource simultaneously.Simultaneously, the airtight property detection system of pipeline of the present invention can detect the impermeability of self, determined that the impermeability of system is good after, detect operation again, the accuracy that the assurance system detects.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a pipeline impermeability detects packoff, it is characterized in that, comprising:
Inner wall sealing assembly (10) and outer wall seal assembly (20) leave the gap between described inner wall sealing assembly (10) and the outer wall seal assembly (20), and pipe under test (40) is plugged in the described gap; And
Make the auxiliary sealing device (30) of described inner wall sealing assembly (10) and outer wall seal assembly (20) mutual extrusion.
2. pipeline impermeability according to claim 1 detects packoff, it is characterized in that,
Described inner wall sealing assembly (10) comprises the air injection opening (11) that fixedly installs and is set in inner wall sealing spare (12) on the described air injection opening (11);
Described outer wall seal assembly (20) comprises the sealing shroud (21) that fixedly installs and is arranged on the inboard sleeve shaped outer wall seal (22) of described sealing shroud (21);
First end of described sealing shroud (21) is provided with inward flange, and an end of described outer wall seal (22) is connected on the described inward flange, and second end of described sealing shroud (21) is the opening shape.
3. pipeline impermeability according to claim 2 detects packoff, it is characterized in that,
Described sealing servicing unit (30) also comprises power source (31) and is connected with described power source (31) and by the promotion cover (32) of described power source (31) push-and-pull, described promotion cover (32) is set in the side that described outer wall seal (22) was gone up and be arranged on movably to air injection opening (11).
4. pipeline impermeability according to claim 3 detects packoff, it is characterized in that,
Described power source (31) is cylinder or hydraulic cylinder or motor.
5. pipeline impermeability according to claim 2 detects packoff, it is characterized in that,
Described air injection opening (11) arranges injecting hole (11a), and the end of described injecting hole (11a) is provided with for fixedly the threaded portion of injecting hole plug (11b).
6. pipeline impermeability according to claim 2 detects packoff, it is characterized in that,
The material of described inner wall sealing spare (12) and described outer wall seal (22) is rubber or silica gel.
7. the airtight property detection system of pipeline is characterized in that,
Comprise that each described pipeline impermeability detects packoff in the claim 1 to 6;
Described pipeline impermeability detects the end (40a) that packoff is arranged on pipe under test.
8. the airtight property detection system of pipeline according to claim 7 is characterized in that,
The airtight property detection system of described pipeline comprises that the described pipeline impermeability of forming arranging detect packoff more;
(40a 40b) is plugged on every pair of described pipeline impermeability respectively and detects on the packoff and sealing at described pipe under test two ends.
9. the airtight property detection system of pipeline according to claim 8 is characterized in that,
Be arranged on described pipe under test two ends (40a, the injecting hole (11a) that the described pipeline impermeability of 40b) every pair detects packoff is interconnected by described pipe under test (40), and with pipe under test (40) inner chamber formation closed cavity; The airtight property detection system of described pipeline also comprises source of the gas (50) and controls described source of the gas (50) to the solenoid valve (60) of described closed cavity air feed.
10. the airtight property detection system of pipeline according to claim 7 is characterized in that,
The airtight property detection system of described pipeline also comprises pressure-detecting device (70), described pressure-detecting device (70) and described closed cavity conducting.
11. the airtight property detection system of pipeline according to claim 10 is characterized in that,
The airtight property detection system of described pipeline also comprises the control device (80) that is connected with described pressure-detecting device (70) and the display device that is connected with described control device (80), and the air pressure that described control device (80) detects according to described pressure-detecting device (70) is controlled described solenoid valve (60) switching and judged the impermeability state of pipe under test (40) and show described impermeability state in described display device.
12. a pipeline air-tightness detection method is characterized in that, may further comprise the steps:
Step S01: the pipeline impermeability of the airtight property detection system of each described pipeline detects injecting hole (11a) the installation gas injection port plug of packoff in claim 7 to 11, detect the impermeability that this pipeline impermeability detects packoff itself, if impermeability is good, unload the gas injection port plug;
Step S02: pipe under test (40) is installed, described pipe under test (40) is connected described pipeline impermeability detects on the packoff;
Step S03: clamp sealing, start the airtight property detection system of described pipeline, the power source (31) of described pipeline impermeability detection packoff promotes cover (32) extruding outer wall seal (22), makes pipe under test two ends (40a, 40b) equal fixing seal;
Step S04: gas injection pressurize, the solenoid valve (60) of the airtight property detection system of described pipeline is opened, 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 pressure-detecting device (70) of the airtight property detection system of described pipeline detected air pressure in the described closed cavity and reaches preset range, the control device (80) of the airtight property detection system of described pipeline controlled that described solenoid valve (60) cuts out and pressurize;
Step S05: judge impermeability, in the Preset Time scope, if described closed cavity internal gas pressure is constant or pressure descends in preset range, think that then 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, classification is placed according to testing result.
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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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