CN106017818B - A kind of suction gun probe of suction-type nitrogen hydrogen leak detector - Google Patents
A kind of suction gun probe of suction-type nitrogen hydrogen leak detector Download PDFInfo
- Publication number
- CN106017818B CN106017818B CN201610387299.XA CN201610387299A CN106017818B CN 106017818 B CN106017818 B CN 106017818B CN 201610387299 A CN201610387299 A CN 201610387299A CN 106017818 B CN106017818 B CN 106017818B
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- China
- Prior art keywords
- outer housing
- suction nozzle
- suction
- end cap
- gap
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
Abstract
The invention provides a kind of suction gun probe, comprising: outer housing, both ends are equipped with end cap and opening；Suction nozzle is set in inside the outer housing, and having between the inner wall of the outer housing has gap or gap between gap, with the lower ending opening of the outer housing, middle part offers tracheae, and is connected with sensor and signal wire；Spring is compressed between end cap and suction nozzle；Bolt is gone up and down, one end is fixedly connected with the suction nozzle, and the other end extends to except the outer housing by the lift span being set on the shell body sidewall；The lifting bolt can pump along the lift span, while the suction nozzle being driven to pump in the outer housing；Air blowing connector, equipped with the insufflation channel being connected to the gap.The invention can be such that suction-type nitrogen hydrogen leak detector works normally under the environmental exact details of high concentration.
Description
Technical field
The invention belongs to leak hunting technology field, and in particular to one kind can enable suction-type nitrogen hydrogen leak detector highly concentrated
The suction gun probe to work under degree environmental exact details and motion state.
Background technique
Suction-type nitrogen hydrogen leak detector is by drawing the search gas of measured object surface leakage to determine whether there is leakage feelings
A kind of detecting instrument that condition generates.Leak detection operation usually operated in the general environment of industry spot, detection accuracy be easy by
To the influence of environmental exact details, when especially being detected under high concentration environmental exact details and motion state, reliability is lower.One side
Face also can suck together the air of environmental exact details, the complicated component of environmental exact details while leak detector sucks search gas
It is and unstable, it is also possible to include a part of search gas element, especially search gas will be bright under high concentration environmental exact details
It is aobvious to be diluted or interfere；On the other hand, when leak detector works under motion state, search gas is more by motion state shakiness
Fixed influence, dispersion or reduction enter the amount of leak detector, generate detection error.For the influence for reducing above-mentioned objective factor to the greatest extent,
The ventilation of user scene and cleaning gas, but most of operating environments are generally required when being hunted leak using suction-type nitrogen hydrogen leak detector
It is difficult to meet above-mentioned requirements, and cumbersome man power and material is generally required to the control of user's site environment and is adjusted control.
Summary of the invention
The invention is to solve the problems of the prior art, and the suction gun for providing a kind of suction-type nitrogen hydrogen leak detector is visited
Head can be such that suction-type nitrogen hydrogen leak detector works normally under the environmental exact details of high concentration.
A kind of suction gun probe for suction-type nitrogen hydrogen leak detector that the invention provides, comprising:
Outer housing, upper end are fixed with end cap, and lower end is equipped with opening；
Suction nozzle is set in inside the outer housing, has gap between the inner wall of the outer housing, with the outer housing
There is gap or gap between lower ending opening；Tracheae is offered in the lower end of the suction nozzle, is connected in the tracheae connection
Sensor, the signal wire of the sensor are brought out except the outer housing or end cap；
Spring, one end are fixed on the end cap inner wall or are limited by the end cap, the other end be fixed on the suction nozzle or
It is limited by the suction nozzle；
Bolt is gone up and down, one end is fixedly connected with the suction nozzle, and the other end passes through the lifting being set on the shell body sidewall
Hole extends to except the outer housing；The lifting bolt can pump along the lift span, while drive the suction
Head pumps in the outer housing；When the lifting bolt is located at the lift span upper limit position, the suction nozzle
Lower end enters within the lower ending opening of the outer housing；When the lifting bolt is located at the lift span lower position, institute
The lower end for stating suction nozzle is stretched out except the lower ending opening of the outer housing；
Air blowing connector, equipped with the insufflation channel being connected to the gap.
Wherein, the outer housing and end cap can also can be preferably detachably connected, are detachably connected with integrally connected
Mode can be the diversified forms such as interference fit connection, threaded connection, bonding, clamping.
Wherein, the end cap has taper closing-in structure, tapered space inside the taper closing-in structure, the spring
One end go deep into the cone space of the end cap, and the taper closing-in structure by constituting the cone space inner wall limit or
It is fixed.
Wherein, the contraction table top that the suction nozzle is in the form of a column and there is Radius to reduce at middle part, one end of the spring is fixed
It is limited on the contraction table top of the suction nozzle or by the contraction table top；Further, one end of the suction nozzle is via in the end cap
The port opened up is entreated to draw；Further, slidable sealing connects between the port that the suction nozzle and the end cap center open up.
Wherein, the tracheae is located at the both ends on the suction nozzle central axes and running through the suction nozzle, the letter of the sensor
Number line is embedded in described intratracheal, and is preferably brought out except the end cap via the tracheae.
Wherein, the lower ending opening of the outer housing can not have or preferably have an inside loop protrusion.
Wherein, the lifting bolt and the matched lift span are set as one or more, it is preferably several and around
The central axes of the suction nozzle are uniformly symmetrical arranged.
Wherein, the lift span is in the structure of similar Z-type.
Wherein, fixing sleeve is gone back outside the suction nozzle equipped with a fixed ring, the lifting bolt passes through the fixed ring and the suction
Head connects and forms the entirety that can be moved up and down, and the air blowing connector is located at the lower section of the fixed ring；Further, described solid
The inner wall of ring and the outer housing is determined preferably using being slidably and sealingly connected with.
The invention has the advantages that (1) is not influenced by environmental exact details variation etc., is particular enable to be suitable for highly concentrated
There is the leak detection detection in the presence of interference gas in degree environmental exact details or environmental exact details；It (2) can be real-time continuous under motion state
Detection accurately detects measured object leak source in a manner of scanning etc., rather than only detects the whole leak rate of measured object, flexibly convenient.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention on a section；
Fig. 2 is structural schematic diagram of the invention on another section；
Fig. 3 is the explosive view of the invention；
Fig. 4 is the overall structure diagram after the invention assembling；
Fig. 5 is the structural schematic diagram of the invention in the other state.
Wherein, dotted arrow part is the flow direction of pure air or moves towards to illustrate in figure.
In figure, 1- outer housing；The gap 11-；The gap 12-；13- lift span；14- opening；141- circular protrusion；2- end cap；
21- taper closing-in structure；The port 22-；3- suction nozzle；31- tracheae；32- shrinks table top；4- sensor；5- spring；6- goes up and down bolt；
7- air blowing connector；8- fixed ring.
Specific embodiment
The invention is further described below by conjunction with attached drawing.
The invention structure is as shown in Figs. 1-5, comprising:
Outer housing 1, upper end are fixed with end cap 2, and lower end is equipped with opening 14；
Suction nozzle 3 is set in inside the outer housing 1, has gap 11 between the inner wall of the outer housing 1, outside described
There is gap 11 or gap 12 between the lower ending opening 14 of shell 1；Tracheae 31 is offered in the lower end of the suction nozzle 3, it is described
It is connected with sensor 4 in the connection of tracheae 31, the signal wire of the sensor 4 is brought out except the outer housing 1 or end cap 2；
Spring 5, one end are fixed on 2 inner wall of end cap or are limited by the end cap 2, and the other end is fixed on the suction nozzle 3
Above or by the suction nozzle 3 limit；
Bolt 6 is gone up and down, one end is fixedly connected with the suction nozzle 3, and the other end passes through the liter being set on 1 side wall of outer housing
Drop hole 13 extends to except the outer housing 1；The lifting bolt 6 can pump along the lift span 13, while band
The suction nozzle 3 is moved to pump in the outer housing 1；When the lifting bolt 6 is located at 13 upper limit position of lift span
When, the lower end of the suction nozzle 3 enters within the lower ending opening 14 of the outer housing 1；When the lifting bolt 6 is located at the liter
When dropping 13 lower position of hole, the lower end of the suction nozzle 3 is stretched out except the lower ending opening 14 of the outer housing 1；
Air blowing connector 7, equipped with the insufflation channel being connected to the gap 11.
Wherein, the outer housing 1 and end cap 2 can also can be preferably detachably connected, are detachably connected with integrally connected
Mode can for interference fit connection, be threadedly coupled, bonding, clamping etc. diversified forms.
Wherein, the end cap 2 has taper closing-in structure 21, the 21 tapered space in inside of taper closing-in structure, institute
The one end for stating spring 5 is goed deep into the cone space of the end cap 2, and the taper closing-in structure 21 by constituting the cone space
Inner wall limit is fixed, can play more firm limit or fixed effect.
Wherein, the contraction table top 32 that the suction nozzle 3 is in the form of a column and there is Radius to reduce at middle part, one end of the spring 5
It is fixed on the contraction table top 32 of the suction nozzle 3 or is limited by the contraction table top 32, increase the stability of spring 5；Further,
One end of the suction nozzle 3 is drawn via the port 22 that 2 center of end cap opens up, and on the one hand plays the auxiliary stopper to spring 5
Effect, on the other hand can assist in the signal wire for guiding the sensor 4；Further, the suction nozzle 3 and 2 center of end cap
Slidable sealing connects between the port 22 opened up, for preventing pure air big via the gap between port 22 and suction nozzle 3
Amount leakage, causes the air curtain or atmosphere for isolation unstable, it is to be noted that due to port 22 and suction nozzle 3 it
Between the opening 14 smaller and apart from outer housing 1 in gap farther out, therebetween without be slidably and sealingly connected with will not cause compared with
Big seriously affects.
Wherein, the tracheae 31 is located at the both ends on 3 central axes of suction nozzle and running through the suction nozzle 3, the sensor 4
Signal wire be embedded in the tracheae 31, and be preferably brought out except the end cap 2 via the tracheae 31；The signal
Line can be connect with extraneous leakage detecting device, be used for transmission the perceptual signal of sensor 4.
Wherein, the lower ending opening 14 of the outer housing 1 can not have or preferably have an inside loop protrusion
141；When not having the circular protrusion 141, the lower ending opening 14 of the suction nozzle 3 and the outer housing 1 is the gap
11, when with the circular protrusion 141, have more compared with gap 11 between the suction nozzle 3 and the lower ending opening 14 of the outer housing 1
Narrow gap 12, narrower gap 12 more facilitate the formation that air curtain is isolated, and environmental exact details is effectively reduced to leak detection operation
It influences.
Wherein, the lifting bolt 6 and the matched lift span 13 are set as one or more, it is preferably several simultaneously
Central axes around the suction nozzle 3 are uniformly symmetrical arranged.
Wherein, the lift span 13 is in the structure of similar Z-type, and two ends of the structure of the Z-type can be respectively used to go up and down
Limit of the bolt 6 in upper limit position and lower position.
Wherein, fixing sleeve is gone back equipped with a fixed ring 8 outside the suction nozzle 3, the lifting bolt 6 passes through the fixed ring 8 and institute
It states suction nozzle 3 to connect and form the entirety that can be moved up and down, the air blowing connector 7 is located at the lower section of the fixed ring 8；Into one
The inner wall of step, the fixed ring 8 and the outer housing 1, which preferably uses, to be slidably and sealingly connected with, for preventing pure air from passing through
It is largely leaked by the gap between lift span 13 and lifting bolt 6, causes the air curtain or atmosphere for isolation unstable, but needed
It is noted that since the gap between lift span 13 and lifting bolt 6 is smaller and fixed ring 8 has further reduced and outer housing 1
Inner wall between channel space, without being slidably and sealingly connected with also not between the fixed ring 8 and the inner wall of the outer housing 1
It will cause biggish seriously affect.
The brief usage mode of the invention is as follows:
Lifting bolt 6 is pushed the upper limit position in lift span 13 by (Fig. 5) when resting, and lifting bolt 6 drives on suction nozzle 3
It moves, the lower end of suction nozzle 3 enters within the lower ending opening 14 of the outer housing 1, and pure air enters via air blowing connector 7 to be inhaled
Gap 11 between first 3 and outer housing 1, and then blow to around the air inlet of tracheae 31, make the air inlet part of entire tracheae 31
Microenvironment is full of pure air, so that high concentration environmental exact details be isolated.
(Fig. 1-2) when the work is required goes up and down bolt 6 and pushes in lift span 13 by suction gun probe close to the surface of measured object
Lower position, lifting bolt 6 drive suction nozzle 3 move down, the lower end of suction nozzle 3 stretch out the outer housing 1 lower ending opening 14 it
Outside, pure air enters the gap 11 between suction nozzle 3 and outer housing 1 via air blowing connector 7, and then passes through suction nozzle 3 and described outer
Gap 12 between the lower ending opening 14 of shell 1 is blown out, and is formed one without intermittent circular air curtain, is made high concentration environment sheet
Bottom is isolated in except air curtain, and blowing to the air inlet of tracheae 31, north is isolated from the center of the annular shape air curtain, leakage point leakage at this time
Search gas be inhaled into and detected from the air inlet for blowing to tracheae 31, when search gas is inhaled into, the gap of evacuation is by four
Pure air supplement in the air curtain in week, the pure air of air curtain is continuously blown, so that local microenvironment is full of cleaning in air curtain
Air, when suction gun pops one's head in movement, air curtain is moved, and realizes that suction gun probe can work normally under motion state.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection scope within.
Claims (10)
1. a kind of suction gun probe characterized by comprising
Outer housing, upper end are fixed with end cap, and lower end is equipped with opening；
Suction nozzle is set in inside the outer housing, has gap, the lower end with the outer housing between the inner wall of the outer housing
There is gap or gap between opening；Tracheae is offered in the lower end of the suction nozzle, is connected with sensing in the tracheae connection
Device, the signal wire of the sensor are brought out except the outer housing or end cap；
Spring, one end are fixed on the end cap inner wall or are limited by the end cap, and the other end is fixed on the suction nozzle or by institute
State suction nozzle limit；
Bolt is gone up and down, one end is fixedly connected with the suction nozzle, and the other end prolongs by the lift span being set on the shell body sidewall
It extends to except the outer housing；The lifting bolt can pump along the lift span, while the suction nozzle being driven to exist
It pumps in the outer housing；When the lifting bolt is located at the lift span upper limit position, the lower end of the suction nozzle
End enters within the lower ending opening of the outer housing；When the lifting bolt is located at the lift span lower position, the suction
The lower end of head is stretched out except the lower ending opening of the outer housing；
Air blowing connector, equipped with the insufflation channel being connected to the gap.
2. suction gun probe according to claim 1, which is characterized in that the outer housing and end cap integrally connected are detachable
Connection.
3. suction gun probe according to claim 1, which is characterized in that the end cap has taper closing-in structure, the cone
Tapered space, one end of the spring are goed deep into the cone space of the end cap inside shape closing-in structure, and described by constituting
The inner wall of the taper closing-in structure of cone space is limited or is fixed.
4. suction gun probe according to claim 1, which is characterized in that the suction nozzle is in the form of a column and middle part is contracted with Radius
Small contraction table top, one end of the spring are fixed on the contraction table top of the suction nozzle or are limited by the contraction table top；Into one
It is drawn via the port that the end cap center opens up one end of step, the suction nozzle.
5. suction gun probe according to claim 1, which is characterized in that the tracheae is located on the suction nozzle central axes and passes through
Wear the both ends of the suction nozzle, the signal wire of the sensor is embedded in described intratracheal, and is preferably drawn via the tracheae
Out except the end cap.
6. suction gun probe according to claim 1, which is characterized in that the lower ending opening of the outer housing does not have or has
An inside loop protrusion.
7. suction gun probe according to claim 1, which is characterized in that the lifting bolt and the matched lift span
It is set as one or more.
8. suction gun probe according to claim 1, which is characterized in that the lift span is in the structure of similar Z-type.
9. suction gun probe according to claim 1, which is characterized in that fixing sleeve is gone back outside the suction nozzle, and one fixed ring is housed,
The lifting bolt connect with the suction nozzle by the fixed ring and is formed the entirety that can be moved up and down, the air blowing connector position
In the lower section of the fixed ring.
10. suction gun probe according to claim 9, which is characterized in that the inner wall of the fixed ring and the outer housing can
It preferably uses and is slidably and sealingly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610387299.XA CN106017818B (en) | 2016-06-01 | 2016-06-01 | A kind of suction gun probe of suction-type nitrogen hydrogen leak detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610387299.XA CN106017818B (en) | 2016-06-01 | 2016-06-01 | A kind of suction gun probe of suction-type nitrogen hydrogen leak detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106017818A CN106017818A (en) | 2016-10-12 |
| CN106017818B true CN106017818B (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610387299.XA Active CN106017818B (en) | 2016-06-01 | 2016-06-01 | A kind of suction gun probe of suction-type nitrogen hydrogen leak detector |
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| CN (1) | CN106017818B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016219401A1 (en) * | 2016-10-06 | 2018-04-12 | Inficon Gmbh | Sniffer leak detector with distance-dependent control of the conveying gas flow |
| CN110672281A (en) * | 2019-09-26 | 2020-01-10 | 大族激光科技产业集团股份有限公司 | Gas leakage detection probe and gas tightness detection device |
| CN114563138A (en) * | 2021-12-20 | 2022-05-31 | 维爱吉(厦门)科技有限责任公司 | Device and method for detecting vacuum glass welding seam leakage rate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10346979B3 (en) * | 2003-10-09 | 2005-05-04 | Dr.Ing.H.C. F. Porsche Ag | Method for leak testing of a strut subjected to compressed air |
| DE102013217279A1 (en) * | 2013-08-29 | 2015-03-05 | Inficon Gmbh | Self-cleaning particle filter in a sniffer probe |
| CN104596706B (en) * | 2015-02-10 | 2016-09-14 | 天津博益气动股份有限公司 | For extending the attachment device of nitrogen hydrogen leak detector use occasion |
| CN205691302U (en) * | 2016-06-01 | 2016-11-16 | 天津博益气动股份有限公司 | A kind of suction gun probe of suction-type nitrogen hydrogen leak detector |
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- 2016-06-01 CN CN201610387299.XA patent/CN106017818B/en active Active
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| Publication number | Publication date |
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| CN106017818A (en) | 2016-10-12 |
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