CN204005017U - Close water, Air－tight Test method shutoff air bag used and test air bag - Google Patents
Close water, Air－tight Test method shutoff air bag used and test air bag Download PDFInfo
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- CN204005017U CN204005017U CN201420414726.5U CN201420414726U CN204005017U CN 204005017 U CN204005017 U CN 204005017U CN 201420414726 U CN201420414726 U CN 201420414726U CN 204005017 U CN204005017 U CN 204005017U
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Abstract
Water, Air－tight Test method shutoff air bag used and the test air bag of closing of the present utility model, wherein close the pipe plug air bag of water, the use of Air－tight Test method, comprise the airbag body of being made by rubber and seal the shutoff seat that is arranged on airbag body two ends, the shutoff seat of airbag body one end is provided with plugging valve, the shutoff seat of the airbag body the other end is provided with filling channel and stop valve, and is equipped with the pressure gauge of maximum range 0.45 MPa of diameter 100mm; Airbag body middle part is cylindrical, and two ends are the taper shape that diameter shrinks gradually, and this pipe plug air bag is used for closing water, Air－tight Test double-purpose.The beneficial effects of the utility model are, have easy and simple to handle, durable, Safety performance is high, an advantage such as stifled dual-purpose, efficiency of construction is high, economizes on resources, and is conducive to promote the Air－tight Test method of energy-conserving and environment-protective.
Description
Technical field
The utility model belongs to pipeline installing area, relates to one and closes water, Air－tight Test method shutoff air bag used and test air bag.
Background technique
Along with the development in city, sewerage construction is more and more.All to carry out pipeline leak test according to the storm sewer under code requirement sewage conduct, the dirty mixed flow pipeline of rain and special geologic condition.But close water, Air－tight Test shutoff imprecision often becomes the unsuccessful one of the main reasons of pipeline leak test, the routine equipment of holding one's breath has the features such as fragile, working life is short, and closed-water test and Air－tight Test need the different equipment of two covers.
Model utility content
The utility model is in order to make up the deficiencies in the prior art, provide a kind of simple in structure, easy to use, cost is low closes water, Air－tight Test method shutoff air bag used and test air bag.
The utility model is achieved by the following technical solution:
The pipe plug air bag that Air－tight Test method of the present utility model is used, it is characterized in that: comprise the airbag body of being made by rubber and seal the shutoff seat that is arranged on airbag body two ends, the shutoff seat of airbag body one end is provided with plugging valve, the shutoff seat of the airbag body the other end is provided with filling channel and stop valve, and is equipped with the pressure gauge of maximum range 0.45 MPa of diameter 100mm; Airbag body middle part is cylindrical, and two ends are the taper shape that diameter shrinks gradually, and this pipe plug air bag is used for closing water, Air－tight Test double-purpose.
Pipe plug air bag adopts six layers of rubber cord fabric Filament Wound Composite to form, and makes with the seamless stickup of high elastic rubber.
Pipe plug air bag is converted by the special stop air bag of boats and ships.
What the experimental technique of holding one's breath of the present utility model used closes water Air－tight Test air bag, it is characterized in that: comprise the airbag body of being made by rubber, sealing is arranged on the shutoff seat of airbag body one end and seals the end plate that is arranged on the airbag body the other end, shutoff seat is provided with the air outlet with valve, end plate is provided with two filling channels with stop valve, on each filling channel with the pressure gauge of maximum range 0.45 MPa of diameter 100mm, can complete to airbag aeration with to pipeline simultaneously and inflate, a filling channel is as this airbag aeration, another filling channel connects air outlet as pipeline inflation after running through whole airbag body, airbag body middle part is cylindrical, and two ends are the taper shape that diameter shrinks gradually.
Close water Air－tight Test air bag, adopt six layers of rubber cord fabric Filament Wound Composite to form, make with the seamless stickup of high elastic rubber.
Closing water Air－tight Test air bag is converted by the special stop air bag of boats and ships.
technological principle:utilize the frictional force that fits tightly generation of balloon surface and inner-walls of duct to play the effect of airtight shutoff.During as closed-water test capping tools, determine the gas pressure in air bag according to the friction factor of working pressure and balloon surface and pipeline enclosure.It is 0.40 MPa that this air bag design maximum can be born air pressure, and taking the air bag of D600 diameter as example, active length is 0.7 meter, and the coefficient of kinetic friction of rubber and PE chemical building material pipe is=0.6, and the area of contact of air bag and pipeline is S=3.14X0.6X0.7=1.319m
2, intracapsular pressure is N=3000pa, frictional force F=N=0.6*3000=1800, total frictional force FS=1800*1.319=2374.2N.Pipeline Air－tight Test pressure is 3000pa to the maximum, is 3000X3.14X0.3X0.3=847.8N to the pressure of air bag, and rich coefficient is according to 1.3 considerations, 2374.2>847.8*1.3, and frictional force is greater than gasbag pressure.Bag material elasticity is larger, and the air bag of D600 diameter, according to the obstructed variable diameter 1cm of air pressure, can overcome pipe diameter irregular problem.
The beneficial effects of the utility model are, simple in structure, easy to use, Safety performance is high, durable in use, and gas bag sealing performance is good.Of the present utility modelly close water, the double-purpose shutoff of holding one's breath test air bag converts by the special stop air bag of boats and ships, has bearing capacity strong, airtight performance is good, ageing-resistant, deformability is strong, adopts the capable design of spindle, the plurality of advantages such as Safety performance height.This test air bag is easy and simple to handle, durable, Safety performance is high, one stifled dual-purpose, efficiency of construction is high, economizes on resources, and is conducive to promote the Air－tight Test method of energy-conserving and environment-protective.The application of all succeeding of the high and new technology industrial development zone of this test instrument immaterial legacy garden and Jinan City's lack of water in Jinan, with respect to other air bags, its superiority is obvious, has good promotional value.This product can be used as closed-water test capping tools and Air－tight Test instrument simultaneously.Adopt special air inlet port design, " gas transmission designated lane " is set and preferably resolves the problem of inflating in airbag aeration and pipeline.This product and method are applicable to diameter D300 under all geological conditions and close water, Air－tight Test to the reinforced concrete pipiline of diameter D2200 and chemical building material pipeline.
Brief description of the drawings
Fig. 1 is Air－tight Test workflow schematic diagram of the present utility model.Fig. 2 is pipe plug air bag schematic diagram, and Fig. 3 is for closing water Air－tight Test air bag schematic diagram.
In figure, 1 airbag body, 2 shutoff seats, 3 plugging valves, 4 filling channels, 5 stop valves, 6 pressure gauges; 7 end plates, 8 air outlets, 9 filling channels, 10 valves.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.
Pipe plug air bag, comprise the airbag body 1 of being made by rubber and seal the shutoff seat 2 that is arranged on airbag body two ends, the shutoff seat of airbag body one end is provided with plugging valve 3, the shutoff seat of the airbag body the other end is provided with filling channel 4 and stop valve 5, and is equipped with the pressure gauge 6 of maximum range 0.45 MPa of diameter 100mm; Airbag body middle part is cylindrical, and two ends are the taper shape that diameter shrinks gradually, and this pipe plug air bag is used for closing water, Air－tight Test double-purpose.
Close water Air－tight Test air bag, comprise that the airbag body 1 be made up of rubber, sealing are arranged on the shutoff seat 2 of airbag body one end and sealing and are arranged on the end plate 7 of the airbag body the other end, shutoff seat is provided with the air outlet 8 with valve 10, end plate is provided with two filling channels with stop valve 5, on each filling channel with the pressure gauge 6 of maximum range 0.45 MPa of diameter 100mm, a filling channel 4 is as this airbag aeration, and another filling channel 9 connects air outlet 8 as pipeline inflation after running through whole airbag body; Airbag body middle part is cylindrical, and two ends are the taper shape that diameter shrinks gradually.
Air bag adopts six layers of rubber cord fabric Filament Wound Composite to form, and surface adopts the seamless stickup of high elastic rubber.Pipe plug air bag only uses as blocking pipe.Close water Air－tight Test air bag and can and close water Air－tight Test as blocking pipe.
This method of inspection was applicable to drainage pipe before backfill, and level of ground water is lower than pipe outer bottom 500 ㎜, the concrete drain pipeline of diameter 300～1200 ㎜ and chemical building material pipe; Ambient temperature is-15～50 DEG C; When rainy, must not close water, Air－tight Test.
Air－tight Test method of the present utility model, comprises the following steps:
(1) use before to pipe plug air bag with close water Air－tight Test air bag and carry out the inspection of pressure test and seal, guarantee in the use safety of air bag in range of working pressure and experimentation air tight.
(2) air compressor must be equipped with pressure control device and pressure relief device, guarantees that gas replenishment process is controlled;
(3) before experiment, guarantee that pipeline free from flaw, hole, interface are tight, the mouth of pipe is without burr.
(4) inwall of the drainage pipe two ends to Air－tight Test and pipe plug contact segment should be processed, and makes its clean, smooth, removes inner-walls of duct burr, salient point, honeycomb, pitted skin.
(5) close water hold one's breath experiment preceding pipeline can not backfill, inspection shaft is built height by laying bricks or stones higher than pipe top 500mm, avoids because of the air bag explosion situation of hurting sb.'s feelings;
(6) respectively by pipe plug air bag with close water Air－tight Test air bag and be arranged on pipe interior two ends, every termination pressure gauge and charging air inlet.
(7) with gas-filled pump, (gas-filled pump maximum inflation pressure can not be greater than air bag working pressure, and aeration speed meets test demand) give pipe plug air bag and close water Air－tight Test air bag and be arranged on pipe interior two ends, inflation, be forced into 0.15～0.2Mpa by seal for pipe joints, check pipe plug sealing situation and process with spraying foaming liquid.
(8) in pipeline, be inflated to 3000Pa through closing water Air－tight Test air bag with air compressor, close the air valve of this air bag, air pressure is tended towards stability; Check pipe plug air bag and the sealing situation of closing water Air－tight Test air bag line up with atomizers spray foaming liquid, pipe plug air bag and close water Air－tight Test air bag line up and seal completely after, observe the air pressure in body; Body internal air pressure is down to 2000Pa from 3000Pa and is lasted and be no less than 5 minutes, can think stable.Air pressure declines when very fast, pipe plug air bag and close water Air－tight Test air bag and can suitably inflate.Decline when too slow, pipe plug air bag and close water Air－tight Test air bag and can suitably exit.
(9) hold one's breath the time according to the regulation of different tube diameters, measure and record the pressure gauge reading of pipeline internal air pressure from 2000Pa declines, its time that drops to 1500Pa must not be less than the regulation of table 2.
(10) pipeline Air－tight Test is complete, first gets rid of the gas in pipeline, then drain gas shutoff capsule and close the gas in water Air－tight Test air bag, guarantees that relief opening can not aim at people or thing, and should control exhaust velocity in exhaust process.
(11) dismantle pipe plug air bag and close water Air－tight Test air bag, when dismounting, should handle with care, after dismounting, pressure gauge being dismantled to mounted box, air bag is forbidden to stack, bend.
(12) in process of the test, should establish special messenger and nurse pressure gauge and air compressor.
6.1 mono-of air bag A(): diameter is determined according to test pipe diameter, diameter range DN300-DN1200mm.
6.2 mono-of air bag B(): diameter is determined according to test pipe diameter, diameter range DN300-DN1200mm.
6.3 capsule pressure gauges (three): diameter 100mm, range 0-4000pa, through possess detect qualification mechanism detect qualified.
6.4 air compressors (one): model PL5001D type.
6.4 adjustable spanneres (two): model 8PK-H010.
6.5 toolboxes (one): interior spanner, the pressure gauge put.
6.6 foaming agents (one bottle): neutral stabilizer.
6.7 brushes (one); For detection of gas leakage situation.
6.8 valves (three): with diameter 10mm, wrench-type ball valve with air bag.
6.9 shutoff screws (two): M10.
6.10 unsintered tapes (two volumes): install for valve, plug.
6.11 generators: power 12kw.
6.12 charging air inlets (three): for inflating in air bag and pipeline.
6.13 temperature transducer.
Closed-water test method of the present utility model, is characterized in that: comprise the following steps:
(1) use before to pipe plug air bag with close water Air－tight Test air bag and carry out the inspection of pressure test and seal, guarantee in its use safety in range of working pressure and process of the test air tight;
(2) air compressor must be equipped with pressure control device and pressure relief device, guarantees that gas replenishment process is controlled;
(3) before test, guarantee that pipeline free from flaw, hole, interface are tight, the mouth of pipe is without burr;
(4) inwall of the drainage pipe two ends to closed-water test and pipe plug contact segment should be processed, and makes its clean, smooth, removes inner-walls of duct burr, salient point, honeycomb, pitted skin;
(5) closing water experiment preceding pipeline can not backfill, and inspection shaft is built height by laying bricks or stones higher than pipe top 500mm, avoids because of the air bag explosion situation of hurting sb.'s feelings;
(6) respectively by pipe plug air bag with close water Air－tight Test air bag and be arranged on the inner two ends of test pipe, every termination pressure gauge and charging air inlet;
(7) with gas-filled pump to pipe plug air bag and close water Air－tight Test airbag aeration, be forced into 0.15～0.2Mpa by seal for pipe joints, check pipe plug sealing situation and process with spraying foaming liquid;
(8) draw a plastic tube from closing the pipeline filling channel of water Air－tight Test air bag, on plastic tube, connect a range 50cm who vertically places, the glass tube of minimum scale 1mm, be filled to regulation and stipulation height from experimental channel intermediate inspection well, watch infiltration height from glass tube within a certain period of time, calculate water percolating capacity;
(9) dismantle pipe plug air bag and close water Air－tight Test air bag, when dismounting, should handle with care, after dismounting, pressure gauge being dismantled to mounted box, air bag is forbidden to stack, bend.
After doing closed-water test and finishing, in pipeline, water enters rain sewage conduct or adopts sprinkling truck to take away, is discharged into specified position.Experimental water should adopt the clean water that meets national drinking water standard, the water that bans use of sewage, middle water etc. to exert an influence to environment and pipeline.
performance analysis:this complete equipment is particularly useful for pipeline Air－tight Test, safety, convenient, durable, and reusable 500-600 time, can effectively promote the use of Air－tight Test, avoid the waste of the water resources that closed-water test causes.Convenient, brief introduction can effectively be shortened test period, and the reduction of erection time, laboratory data accurate and effective, can accurately detect pipeline airtight performance, has good application value.
Closed-water test is more conventional, and to build the performance analysis of brick wall method for blocking by laying bricks or stones as follows:
Taking diameter 600mm pipeline as example
The performance analysis of the more conventional disc type capping tools of Air－tight Test is as follows:
Claims (6)
1. a pipeline closes the pipe plug air bag of water, the use of Air－tight Test method, it is characterized in that: comprise the airbag body of being made by rubber and seal the shutoff seat that is arranged on airbag body two ends, the shutoff seat of airbag body one end is provided with plugging valve, the shutoff seat of the airbag body the other end is provided with filling channel and stop valve, and is equipped with the pressure gauge of maximum range 0.45 MPa of diameter 100mm; Airbag body middle part is cylindrical, and two ends are the taper shape that diameter shrinks gradually, and this pipe plug air bag is used for closing water, Air－tight Test double-purpose.
2. pipeline according to claim 1 closes the pipe plug air bag that water, Air－tight Test method use, and it is characterized in that: adopt six layers of rubber cord fabric Filament Wound Composite to form, make with the seamless stickup of high elastic rubber.
3. pipeline according to claim 1 and 2 closes the pipe plug air bag of water, the use of Air－tight Test method, it is characterized in that: converted by the special stop air bag of boats and ships.
4. a pipeline closes water, what Air－tight Test method was used closes water Air－tight Test air bag, it is characterized in that: comprise the airbag body of being made by rubber, sealing is arranged on the shutoff seat of airbag body one end and seals the end plate that is arranged on the airbag body the other end, shutoff seat is provided with the air outlet with valve, end plate is provided with two filling channels with stop valve, on each filling channel with the pressure gauge of maximum range 0.45 MPa of diameter 100mm, a filling channel is as this airbag aeration, another filling channel connects air outlet as pipeline inflation after running through whole airbag body, airbag body middle part is cylindrical, and two ends are the taper shape that diameter shrinks gradually.
5. what pipeline according to claim 4 closed that water, Air－tight Test method uses closes water Air－tight Test air bag, it is characterized in that: adopt six layers of rubber cord fabric Filament Wound Composite to form, make with the seamless stickup of high elastic rubber.
6. what pipeline according to claim 4 closed that water, Air－tight Test method uses closes water Air－tight Test air bag, it is characterized in that: converted by the special stop air bag of boats and ships.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420414726.5U CN204005017U (en) | 2014-07-26 | 2014-07-26 | Close water, Air－tight Test method shutoff air bag used and test air bag |
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| CN201420414726.5U CN204005017U (en) | 2014-07-26 | 2014-07-26 | Close water, Air－tight Test method shutoff air bag used and test air bag |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241618A (en) * | 2015-09-15 | 2016-01-13 | 东方思创应急装备科技无锡有限公司 | Air tightness detecting device |
| CN108071892A (en) * | 2017-12-28 | 2018-05-25 | 厦门安越非开挖工程技术股份有限公司 | It is a kind of for closure air bag of drainage pipeline and preparation method thereof |
| CN108562401A (en) * | 2018-02-28 | 2018-09-21 | 重庆广福科技有限公司 | Detect the ventable self-seal device of automobile pipeline air-tightness |
| CN109001102A (en) * | 2018-05-17 | 2018-12-14 | 杭州伊弗欧质量检测有限公司 | The case of resistance to sulfurous acid gas test |
| CN109029866A (en) * | 2018-06-27 | 2018-12-18 | 江西汇丰管业有限公司 | A kind of closed-water test well and its manufacture craft |
| CN109211479A (en) * | 2018-08-14 | 2019-01-15 | 遵义海德汽车零部件有限责任公司 | Connecting terminal leak-testing apparatus |
| CN110261049A (en) * | 2019-06-12 | 2019-09-20 | 四川省第六建筑有限公司 | Drainpipe leak test device and method |
| CN114199476A (en) * | 2020-09-17 | 2022-03-18 | 中国电建集团华东勘测设计研究院有限公司 | Rapid plugging digitalization device for non-pressure pipeline water closing test and test method |
-
2014
- 2014-07-26 CN CN201420414726.5U patent/CN204005017U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241618A (en) * | 2015-09-15 | 2016-01-13 | 东方思创应急装备科技无锡有限公司 | Air tightness detecting device |
| CN108071892A (en) * | 2017-12-28 | 2018-05-25 | 厦门安越非开挖工程技术股份有限公司 | It is a kind of for closure air bag of drainage pipeline and preparation method thereof |
| CN108071892B (en) * | 2017-12-28 | 2023-09-19 | 厦门安越非开挖工程技术股份有限公司 | Plugging air bag for drainage pipeline and manufacturing method thereof |
| CN108562401A (en) * | 2018-02-28 | 2018-09-21 | 重庆广福科技有限公司 | Detect the ventable self-seal device of automobile pipeline air-tightness |
| CN109001102A (en) * | 2018-05-17 | 2018-12-14 | 杭州伊弗欧质量检测有限公司 | The case of resistance to sulfurous acid gas test |
| CN109001102B (en) * | 2018-05-17 | 2020-11-13 | 杭州伊弗欧质量检测有限公司 | Sulfur dioxide resistance test box |
| CN109029866A (en) * | 2018-06-27 | 2018-12-18 | 江西汇丰管业有限公司 | A kind of closed-water test well and its manufacture craft |
| CN109029866B (en) * | 2018-06-27 | 2023-11-10 | 江西汇丰管业有限公司 | Water-closing test well and manufacturing process thereof |
| CN109211479A (en) * | 2018-08-14 | 2019-01-15 | 遵义海德汽车零部件有限责任公司 | Connecting terminal leak-testing apparatus |
| CN110261049A (en) * | 2019-06-12 | 2019-09-20 | 四川省第六建筑有限公司 | Drainpipe leak test device and method |
| CN114199476A (en) * | 2020-09-17 | 2022-03-18 | 中国电建集团华东勘测设计研究院有限公司 | Rapid plugging digitalization device for non-pressure pipeline water closing test and test method |
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