CN104075855B - A kind of pipe adapter leak detection apparatus - Google Patents

A kind of pipe adapter leak detection apparatus Download PDF

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Publication number
CN104075855B
CN104075855B CN201410353271.5A CN201410353271A CN104075855B CN 104075855 B CN104075855 B CN 104075855B CN 201410353271 A CN201410353271 A CN 201410353271A CN 104075855 B CN104075855 B CN 104075855B
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China
Prior art keywords
pad
pipe adapter
joint flange
surge tank
pressing plate
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CN201410353271.5A
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CN104075855A (en
Inventor
袁敏哲
张�成
孙万仓
叶建林
宋品玲
王娅辉
周艳华
吴金平
宋飞飞
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XIAN UNITE CONTAINER MANUFACTURING Co Ltd
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XIAN UNITE CONTAINER MANUFACTURING Co Ltd
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Abstract

The invention discloses a kind of pipe adapter leak detection apparatus, comprise helium tank, stop valve, surge tank, collect air bag and helium mass spectrometer leak detector, helium tank outlet is connected with stop valve one end, the stop valve other end is connected with surge tank import, Bonding pressure table on surge tank, surge tank top is provided with pipe adapter bindiny mechanism, pipe adapter bindiny mechanism comprises joint flange, pressing plate, first pad and the second pad, joint flange is fixed on surge tank top, pressing plate is arranged on above joint flange, second pad is arranged on pressing plate lower surface, first pad is arranged on joint flange upper surface, pipe adapter is arranged between the first pad and the second pad, the center of joint flange and the first pad all has through hole, pressing plate is connected by securing member and joint flange, collect Air sac cover outside pipe adapter possibility leak site, helium mass spectrometer leak detector suction gun is communicated with in collection air bag.The present invention can detect the leakage of pipe adapter, and detection sensitivity, precision, efficiency are all high.

Description

A kind of pipe adapter leak detection apparatus
Technical field
The invention belongs to leak detection technical field, be specifically related to a kind of pipe adapter leak detection apparatus.
Background technology
Pipe adapter is as a kind of crossover sub, be widely used in the industries such as oil, chemical industry, boats and ships, space flight, military project, machinery, building, medicine, broad form has: hydraulic flexible pipe joint, ferrule-type compression joint, socket-welding fitting, Explosion composite formula pipe adapter, screw connected pipe adapter etc.In some use occasion, very high to the sealing property requirement at position (i.e. pipe adapter may leak site) between two pipes forming pipe adapter, do not allow any leakage.At present, the major way that detector tube joint is revealed is method of leaking hunting in water, and in water, the method for leaking hunting is sealed at pipe adapter two ends, pressurized air is filled with in pipe adapter, pipe adapter may leak site be placed in water, adopt visualization bubbling situation, carry out detector tube joint and whether there is leakage.When pipe adapter exists trace leakage, this mode is inapplicable, and cannot determine leakage rate.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of pipe adapter leak detection apparatus is provided, its structure is simple, reasonable in design and use easy to operate, solve in prior art the problem that the pipe adapter that there is trace leakage cannot detect, detection sensitivity is high, accuracy of detection is high, and detection efficiency is high.
For achieving the above object, the technical solution used in the present invention is: a kind of pipe adapter leak detection apparatus, it is characterized in that: comprise helium tank, stop valve, surge tank, collect air bag and helium mass spectrometer leak detector, the outlet of described helium tank is connected with one end of stop valve, the other end of described stop valve is connected with the import of surge tank, described surge tank is connected with tensimeter, the top of described surge tank is provided with the pipe adapter bindiny mechanism for connecting pipe joint, described pipe adapter bindiny mechanism comprises joint flange, pressing plate, first pad and the second pad, described joint flange sealing is fixed on the top of surge tank, described pressing plate is arranged on the top of joint flange, described second pad is arranged on the lower surface of pressing plate, described first pad is arranged on the upper surface of joint flange, described pipe adapter is arranged between the first pad and the second pad, the center of described joint flange and the first pad all has through hole and two through hole communicates, described through hole communicates with the inside of pipe adapter, described pressing plate to be fixedly connected with joint flange by securing member and to be pressed on the second pad, described collection Air sac cover the possible leak site of pipe adapter outer and with pipe adapter between seal mutually, the suction gun of described helium mass spectrometer leak detector is communicated with the inside of collecting air bag.
Above-mentioned a kind of pipe adapter leak detection apparatus, is characterized in that: be provided with vacuum cement between the sidewall of described first pad and joint flange, between the lower end, outside of pipe adapter and the first pad and between the outer upper end of pipe adapter and the second pad.
Above-mentioned a kind of pipe adapter leak detection apparatus, is characterized in that: described securing member is bolt, and the screw rod of described bolt is from the bottom to top successively through joint flange and pressing plate and end is provided with nut, and described nut abuts against on the upper surface of pressing plate.
Above-mentioned a kind of pipe adapter leak detection apparatus, is characterized in that: the connected mode of described joint flange and surge tank is for welding.
Above-mentioned a kind of pipe adapter leak detection apparatus, is characterized in that: described first pad and the second pad are silica gel pad.
The present invention compared with prior art has the following advantages:
1, structure of the present invention is simple, reasonable in design and use easy to operate.
2, the present invention is applicable to the detection of pipe adapter under different leakage rate requirement, and accuracy of detection is high.
3, in testing process of the present invention, pipe adapter two ends respectively with the first pad and the second pad contacts, i.e. pipe adapter and be flexible contact between the first pad and the second pad, can not pipe adapter two ends be caused wearing and tearing, be scratched; Bolt, nut are separated during dismounting, vacuum cement is removed, and just can obtain the pipe adapter after detecting, convenient disassembly.
4, in the present invention, pipe adapter adopts pipe adapter bindiny mechanism to be fixedly connected on the top of surge tank, does not need welding, machine work, shortens detection time, improve detection efficiency.
5, the invention solves the problem that cannot detect the pipe adapter that there is trace leakage, adopt helium mass spectrometer leak detector to carry out the leakage of detector tube joint, detection sensitivity is high.
Below by drawings and Examples, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is using state figure of the present invention.
Fig. 2 is the installation relation schematic diagram of joint flange of the present invention, pressing plate, the first pad, the second pad, collection air bag and pipe adapter.
Description of reference numerals:
1-helium tank; 2-stop valve; 3-surge tank;
4-helium mass spectrometer leak detector; 5-joint flange; 6-securing member;
7-the first pad; 8-pipe adapter; 9-collect air bag;
10-the second pad; 11-pressing plate; 12-tensimeter;
13-through hole; 14-vacuum cement; 15-nut.
Embodiment
As depicted in figs. 1 and 2, the present invention includes helium tank 1, stop valve 2, surge tank 3, collect air bag 9 and helium mass spectrometer leak detector 4, the outlet of described helium tank 1 is connected with one end of stop valve 2, the other end of described stop valve 2 is connected with the import of surge tank 3, described surge tank 3 is connected with tensimeter 12, the top of described surge tank 3 is provided with the pipe adapter bindiny mechanism for connecting pipe joint 8, described pipe adapter bindiny mechanism comprises joint flange 5, pressing plate 11, first pad 7 and the second pad 10, described joint flange 5 sealing is fixed on the top of surge tank 3, described pressing plate 11 is arranged on the top of joint flange 5, described second pad 10 is arranged on the lower surface of pressing plate 11, described first pad 7 is arranged on the upper surface of joint flange 5, described pipe adapter 8 is arranged between the first pad 7 and the second pad 10, the center of described joint flange 5 and the first pad 7 all has through hole 13 and two through hole 13 communicates, described through hole 13 communicates with the inside of pipe adapter 8, described pressing plate 11 to be fixedly connected with joint flange 5 by securing member 6 and to be pressed on the second pad 10, described collection air bag 9 be enclosed within the possible leak site of pipe adapter 8 outer and with pipe adapter 8 between seal mutually, the suction gun of described helium mass spectrometer leak detector 4 is communicated with the inside of collecting air bag 9.
As depicted in figs. 1 and 2, vacuum cement 14 is provided with between the sidewall of described first pad 7 and joint flange 5, between the lower end, outside of pipe adapter 8 and the first pad 7 and between the outer upper end of pipe adapter 8 and the second pad 10, to prevent the trace of helium from revealing, guarantee sealing.
As depicted in figs. 1 and 2, described securing member 6 is bolt, and the screw rod of described bolt is from the bottom to top successively through joint flange 5 and pressing plate 11 and end is provided with nut 15, and described nut 15 abuts against on the upper surface of pressing plate 11; Adopt screw bolt and nut to coordinate joint flange 5 is fixedly connected with pressing plate 11, easy to connect, fixing reliable, and pressing plate 11 can be made to be pressed on the second pad 10, prevent helium in testing process from revealing.
In the present embodiment, the connected mode of described joint flange 5 and surge tank 3 is for welding, and connected mode is simple, and sealing is fixing reliable.
In the present embodiment, described first pad 7 and the second pad 10 are silica gel pad, and elasticity and the hardness of silica gel pad are moderate, if the pad selected is too soft, is then out of shape too large, cannot recovers, cannot recycle; If the pad selected is too hard, then pad is not yielding, can cause the leakage of helium.
Secondly testing process of the present invention is: the top first pipe adapter 8 to be detected being fixedly connected on surge tank 3 by pipe adapter bindiny mechanism, will collect possible leak site that air bag 9 is enclosed within pipe adapter 8 and make to seal mutually between collection air bag 9 with pipe adapter 8 outward; Bonding pressure table 12 on surge tank 3 again, connect stop valve 2 in the import of surge tank 3, the other end of stop valve 2 is connected with the outlet of helium tank 1.After connecting, open stop valve 2, helium then in helium tank 1 is filled with in surge tank 3, helium in surge tank 3 enters in pipe adapter 8 successively after the center through hole 13 of joint flange 5 and the first pad 7, observe tensimeter 12, when the pressure in surge tank 3 reaches after testing requirement pressure, close stop valve 2, and pressurize 10 minutes.Open helium mass spectrometer leak detector 4, require the detection slip of setting helium mass spectrometer leak detector 4 according to pipe adapter accuracy of detection, the suction gun of helium mass spectrometer leak detector 4 is communicated with the inside of collecting air bag 9.When pipe adapter 8 has leakage, helium enters helium mass spectrometer leak detector 4 by suction gun, and helium mass spectrometer leak detector 4 sends chimes of doom, just can determine that the leakage rate of pipe adapter 8 has exceeded the slip that setting requires, there is leakage in pipe adapter, the leakage rate of this pipe adapter can not meet the request for utilization of pipe adapter; As helium mass spectrometer leak detector 4 does not send chimes of doom, then illustrate that the leakage rate of pipe adapter 8 does not exceed the slip of setting requirement, the leakage rate of this pipe adapter can meet the request for utilization of pipe adapter.Pipe adapter 8 is fixedly connected on the top of surge tank 3 by pipe adapter bindiny mechanism, concrete operating process is: top joint flange 5 being welded on surge tank 3, then the first pad 7 and pipe adapter 8 are placed on joint flange 5 successively, second pad 10 and pressing plate 11 are placed on successively the outer upper end of pipe adapter 8, by securing member 6, pressing plate 11 and joint flange 5 are fixed together again, make pressing plate 11 be pressed on the second pad 10 by nut 15; Last between the sidewall and joint flange 5 of the first pad 7, between the lower end, outside of pipe adapter 8 and the first pad 7 and between the outer upper end of pipe adapter 8 and the second pad 10, vacuum cement 14 is used to seal, to prevent the trace of helium from revealing, guarantee sealing.In the present invention, stop valve 2 is for the detected pressures of helium in regulating and controlling surge tank 3, and tensimeter 12 is for the detected pressures of helium in display buffer tank 3, and itself and outside air are isolated by collecting air bag 9 by the possible leak site of pipe adapter 8.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solution of the present invention.

Claims (5)

1. a pipe adapter leak detection apparatus, it is characterized in that: comprise helium tank (1), stop valve (2), surge tank (3), collect air bag (9) and helium mass spectrometer leak detector (4), the outlet of described helium tank (1) is connected with one end of stop valve (2), the other end of described stop valve (2) is connected with the import of surge tank (3), described surge tank (3) is connected with tensimeter (12), the top of described surge tank (3) is provided with the pipe adapter bindiny mechanism for connecting pipe joint (8), described pipe adapter bindiny mechanism comprises joint flange (5), pressing plate (11), first pad (7) and the second pad (10), described joint flange (5) sealing is fixed on the top of surge tank (3), described pressing plate (11) is arranged on the top of joint flange (5), described second pad (10) is arranged on the lower surface of pressing plate (11), described first pad (7) is arranged on the upper surface of joint flange (5), described pipe adapter (8) is arranged between the first pad (7) and the second pad (10), the center of described joint flange (5) and the first pad (7) all has through hole (13) and two through hole (13) communicates, described through hole (13) communicates with the inside of pipe adapter (8), described pressing plate (11) to be fixedly connected with joint flange (5) by securing member (6) and to be pressed on the second pad (10), described collection air bag (9) be enclosed within the possible leak site of pipe adapter (8) outer and with pipe adapter (8) between seal mutually, the suction gun of described helium mass spectrometer leak detector (4) is communicated with the inside of collecting air bag (9).
2. according to a kind of pipe adapter leak detection apparatus according to claim 1, it is characterized in that: between the sidewall of described first pad (7) and joint flange (5), between the lower end, outside of pipe adapter (8) and the first pad (7) and between the outer upper end of pipe adapter (8) and the second pad (10), be provided with vacuum cement (14).
3. according to a kind of pipe adapter leak detection apparatus according to claim 1, it is characterized in that: described securing member (6) is bolt, the screw rod of described bolt is from the bottom to top successively through joint flange (5) and pressing plate (11) and end is provided with nut (15), and described nut (15) abuts against on the upper surface of pressing plate (11).
4. according to a kind of pipe adapter leak detection apparatus according to claim 1, it is characterized in that: the connected mode of described joint flange (5) and surge tank (3) is for welding.
5. according to a kind of pipe adapter leak detection apparatus according to claim 1, it is characterized in that: described first pad (7) and the second pad (10) are silica gel pad.
CN201410353271.5A 2014-07-23 2014-07-23 A kind of pipe adapter leak detection apparatus Active CN104075855B (en)

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CN104075855B true CN104075855B (en) 2016-04-06

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110967151A (en) * 2018-09-29 2020-04-07 台山市旺春达环保科技有限公司 Filter element assembly detection device
CN111882831A (en) * 2020-07-09 2020-11-03 芜湖中燃城市燃气发展有限公司 Natural gas leakage alarm device and method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778613A (en) * 1970-04-17 1973-12-11 Elf Union Pipe-line leak detection method and device
US5094480A (en) * 1989-11-29 1992-03-10 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A." Pipe coupling with leakage draining means
CN1229916A (en) * 1999-02-08 1999-09-29 于志谦 Dual-fuel automotive high pressure duct leakage detecting device
CN101105263A (en) * 2006-07-14 2008-01-16 固特异轮胎和橡胶公司 Flexible leak detection system and method for double carcass hose
CN201464133U (en) * 2009-07-27 2010-05-12 中国石油天然气集团公司 Sleeve pipe and oil pipe joint leakage rate infrared radiation detection apparatus for test
CN201779381U (en) * 2010-02-10 2011-03-30 航天晨光股份有限公司 Gas delivering stainless steel corrugated hose joint component with leakage detection function
CN102086972A (en) * 2010-11-17 2011-06-08 广州精测管线技术有限公司 Method for detecting leaking point position of buried pipeline by gas
CN203422195U (en) * 2013-08-24 2014-02-05 西安优耐特容器制造有限公司 Online leak detection system for composite board device
CN204008030U (en) * 2014-07-23 2014-12-10 西安优耐特容器制造有限公司 A kind of pipe adapter leak detection apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778613A (en) * 1970-04-17 1973-12-11 Elf Union Pipe-line leak detection method and device
US5094480A (en) * 1989-11-29 1992-03-10 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A." Pipe coupling with leakage draining means
CN1229916A (en) * 1999-02-08 1999-09-29 于志谦 Dual-fuel automotive high pressure duct leakage detecting device
CN101105263A (en) * 2006-07-14 2008-01-16 固特异轮胎和橡胶公司 Flexible leak detection system and method for double carcass hose
CN201464133U (en) * 2009-07-27 2010-05-12 中国石油天然气集团公司 Sleeve pipe and oil pipe joint leakage rate infrared radiation detection apparatus for test
CN201779381U (en) * 2010-02-10 2011-03-30 航天晨光股份有限公司 Gas delivering stainless steel corrugated hose joint component with leakage detection function
CN102086972A (en) * 2010-11-17 2011-06-08 广州精测管线技术有限公司 Method for detecting leaking point position of buried pipeline by gas
CN203422195U (en) * 2013-08-24 2014-02-05 西安优耐特容器制造有限公司 Online leak detection system for composite board device
CN204008030U (en) * 2014-07-23 2014-12-10 西安优耐特容器制造有限公司 A kind of pipe adapter leak detection apparatus

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