CN205642753U - Leak hunting suction gun probe and leak hunting suction gun subassembly - Google Patents
Leak hunting suction gun probe and leak hunting suction gun subassembly Download PDFInfo
- Publication number
- CN205642753U CN205642753U CN201620410200.9U CN201620410200U CN205642753U CN 205642753 U CN205642753 U CN 205642753U CN 201620410200 U CN201620410200 U CN 201620410200U CN 205642753 U CN205642753 U CN 205642753U
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- Prior art keywords
- suction gun
- probe
- leak detection
- air inlet
- outer cover
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Abstract
The utility model discloses a leak hunting suction gun probe and leak hunting suction gun subassembly, the suction gun of should hunting leak pop one's head in including probe casing, last air inlet and the gas outlet of being equipped with of probe casing has the passageway of connecting air inlet and gas outlet in the probe casing, be equipped with the filter layer in the passageway, the air inlet is offered on probe casing's preceding terminal surface and side. The utility model discloses a leak hunting suction gun probe, the air inlet is offered on probe casing's preceding terminal surface and side, has enlarged effective measuring area, and detection efficiency is high, and the precision is high, but probe casing direct contact waits the sealed face that detects, the filter layer set up the entering that can effectively avoid impurity such as dust, profit when guaranteeing to detect the precision, and change convenient, all offered the air inlet on probe casing's preceding terminal surface and the side, when a face contact waits that the sealed face that detects the air inlet appears and briefly stops up, be unlikely to to make the check out test set to appear suppressing and press and result in equipment to damage, guaranteed the measuring process and go on smoothly.
Description
Technical field
This utility model belongs to air tight test technical field, is specifically related to a kind of leak detection suction gun probe, also relates to one
Use the leak detection suction gun assembly that this leak detection suction gun is popped one's head in.
Background technology
Steam turbine generator is one of capital equipment in power production process, the hydrogen-cooled mode of the many employings of present high-rating generator, once
Leakage hydrogen gas explosion causes destructive disaster will to unit and personnel, leads to especially big electric power safety production accident, before therefore starting
Must assure that electromotor air-tight test is qualified.Owing to electromotor air-tightness requires the highest, the less not easy-to-search of leak source, leakage
After exceeding standard, unit tends not to start in time, not only has a strong impact on economy, and affects power network safety operation, therefore
The leak detection work of electromotor hydrogen gas system is always emphasis and the difficult point of power plant.
Airtight test method after generator outage mainly smears soap water law, water pressure test method, halogen leak detection, helium
Mass spectrum leak detection method, helium mass spectrometer leak detector is highly sensitive in recent years, and comprehensively, application effect is preferable in detection.This instrument is equipped with vacuum
Pump, leak detection suction gun can aspirate the hydrogen of leakage, and the molecular pump rotating speed in instrument is 65000r/min, after gas molecule is accelerated,
Owing to molecular mass is different, radius of turn can be different, when hydrogen molecule enters in slit with the natural trajectory of oneself, just can divide
From detecting.Owing to its detection method is physical method, data show reliable and stable, and can show leak rate size, according to
Data can effectively determine particular location and the size of leak source.
But, the shortcoming of the method is the most more apparent: leak detector main frame somewhat expensive, high to environmental requirement, main frame interior molecules
Pump, oil system are easily contaminated, and therefore forbid inside dust, moisture access arrangement, even if a small amount of introduced contaminants enters inspection
Measurement equipment, will result in device damage, affects Site Detection.Although device interior is configured with ceramic element, but it can not be prevented
Water, oil, and be frequently occluded, can not clear up after blocking and can only change, the most thousands of unit of ceramic element price.And send out
In the environment of motor is operated in many dirt, oil-containing, aqueous, high humidity, molecular pump, oil system are the most contaminated causes equipment
Damaging, overhaul a hundreds thousand of unit of expense, affect unit starting grid-connected simultaneously, loss is the most in the millions.
In actual production practice, introduced contaminants enters instrument mainly under leak detection suction gun mode of operation, when detecting in this mode
Mainly detected near the sealing surface of suspected leak by suction gun front end, owing to generator housing structure is complicated, also have and seal
The subsystems such as oil, cooling water, there is the impurity such as ash, oil, water in sealing surface, time directly with suction gun detection sealing surface, holds very much
Easily suck impurity and cause device damage；And its front end is as from sealing surface too far during suction gun detection, sensitivity is the most poor, detection effect
Rate is low.
In prior art, CN202305144U discloses a kind of Special suction gun for helium mass spectrometer leak detector, including by a rustless steel
Capillary tube I, stainless steel capillary II, handle, suction gun seat, described stainless steel capillary I and stainless steel capillary I, II's
Being set with a suction pipe outside junction, a suction nozzle is installed on the top of described suction pipe, and a sucker, institute are installed in the front end of described suction nozzle
State sucker to be twisted and on suction nozzle by female thread, in the middle part of suction nozzle, embed a filter.This Special suction gun for helium mass spectrometer leak detector exists
Front end arranges sucker and suction nozzle, and embeds filter in suction nozzle, is possible to prevent impurity to enter suction gun to a certain extent.But
Be the sucker of above-mentioned suction gun front end be open type, in the environment of being exposed to many dirt, oil-containing, aqueous, high humidity, with sealing
Face directly contacts detection, and filter is easy to contaminated and blocks；Owing to filter is embedded in the middle part of suction nozzle, dismounting and more
Change cumbersome；Simultaneously as its sucker only has front end face opening, cover effective area of detection limited, cause its detection effect
Rate is low, once this opening part is blocked, easily causes device damage, has a strong impact on detection procedure, is not therefore suitable for electromotor
The operation of leak site is searched the most efficiently during hydrogen test leak.
Summary of the invention
The purpose of this utility model is to provide a kind of leak detection suction gun probe, can directly contact sealing surface and carry out quickly, examines easily
Leakage work, detection efficiency is high.
Second purpose of the present utility model is to provide a kind of leak detection suction gun assembly using above-mentioned leak detection suction gun to pop one's head in.
In order to realize object above, this utility model be the technical scheme is that
A kind of leak detection suction gun probe, including probing shell, described probing shell is provided with air inlet and gas outlet, probing shell
Inside there is connection air inlet and the passage of gas outlet, in described passage, be provided with filter course；Described air inlet is opened in probing shell
Front end face and side on.
Described probing shell includes outer cover body and probe suction pipe, and described air inlet and gas outlet are opened in described outer cover body
On, described probe suction pipe is connected with gas outlet.
Described air inlet is the through hole being opened on outer cover body；Preferably, a diameter of the 2～3mm of through hole.
Described outer cover body is cubic type.General, outer cover body can also be the housing such as column type, vertebral body；Cubic type
Conveniently process, deposit and change filter course.
Described gas outlet is opened on the rear end face of outer cover body.
On the rear end face of described outer cover body, the periphery in gas outlet also offers air inlet.
The lumen centers of outer cover body is stretched in one end that described probe suction pipe is connected with gas outlet.
Described filter course is to be filled in the filtration sponge between described outer cover body and probe suction pipe or sponge filter core.Described filtration
The effect of layer is filter dirt, blocks water and/or oil resistance, and general filtering material can be used to make.
Described outer cover body is provided with to be opened/closed renovating, and is used for changing filter course.During use, after filter course blocking,
That can open probing shell renovates replacing filter course.
Described probe suction pipe is steel suction pipe.Preferably, described probe suction pipe is pipe.
The material of described outer cover body is ordinary carbon steel.
A kind of leak detection suction gun assembly, including leak detection suction gun and above-mentioned leak detection suction gun probe, giving vent to anger of described leak detection suction gun probe
Mouthful or probe suction pipe removably connect with described leak detection suction gun front end away from one end of outer cover body.
Described probe suction pipe is provided with screw thread away from one end of outer cover body, for being connected with leak detection suction gun nose threads.
Described leak detection suction gun is connected to helium mass spectrometer leak detector main frame by suction pipe and uses.During use, leak detection suction gun is visited
After filter course blocking in Tou, can directly change leak detection suction gun probe, convenient detection work proceeds.
Leak detection suction gun of the present utility model is popped one's head in, and air inlet is opened on front end face and the side of probing shell, expands effectively
Area of detection, it is adaptable to various baroque electromotor sealing surfaces detect, detection efficiency is high, and precision is high；Connect air inlet
Be provided with filter course in the passage of gas outlet, can effectively prevent equipment pollution；During use, probing shell can directly contact to be checked
The sealing surface surveyed, once contacts the liquid such as oil, water, removes probe immediately；Due to the existence of filter course, short-time contact oil,
The liquid such as water will not enter inside probe suction pipe, it is ensured that can be prevented effectively from entering of the impurity such as dust, profit while accuracy of detection
Enter；Simultaneously as all offer air inlet on the front end face of probing shell and side, when the sealing that a face contact is to be detected
When the of short duration blocking of the air inlet in this face occurs in face, it is unlikely to make detection equipment occur building the pressure and cause device damage, can guarantee that inspection
Survey process is smoothed out.
This leak detection suction gun probe suction gun front end former with helium mass spectrometer leak detector is removably connected, then is connected to helium mass spectrum by suction pipe
Leak detector main frame uses；For the airtight test of generator system, can at many dirt, have oil, have the working environment of water
Under detect, be prevented effectively from device damage, extension device service life, significantly save the cost of overhaul and use；This leak detection suction gun is visited
Head can directly contact sealing surface by probing shell and detect, and can be effectively improved detection efficiency and precision；This leak detection suction gun is popped one's head in
Suction gun front end former with helium mass spectrometer leak detector removably connects the leak detection suction gun assembly formed, and changes leak detection suction gun probe simple fast
Victory, work efficiency is high, easy to use.
Leak detection suction gun of the present utility model is popped one's head in, and is applied to helium mass spectrometer leak detecting technology, can carry out the machine examination that generates electricity quickly, easily
Leakage work, overcomes the shortcoming easily sucking impurity simultaneously；Use time human-saving, financial resources, solve the big problem of Generator Hydrogen Leakage,
Guarantee unit starts in time, safe operation.Leak detection suction gun of the present utility model probe and leak detection suction gun assembly are examined for helium mass spectrum
Leakage instrument, it is adaptable to steam turbine generator and cooling system thereof, is particularly suited for the airtight test of hydrogen cooled generator.
Accompanying drawing explanation
Fig. 1 is the structural representation of the leak detection suction gun probe of embodiment 1.
Fig. 2 is the structural representation of the leak detection suction gun assembly of embodiment 2.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated.
Embodiment 1
The leak detection suction gun probe of the present embodiment, as it is shown in figure 1, include probing shell, described probing shell includes outer cover body
1 and probe suction pipe 2, described outer cover body 1 is square shell body, and the length of side is 15mm, and material is ordinary carbon steel, thickness
For 1mm；
Described outer cover body 1 is provided with air inlet 4 and gas outlet 10, has connection air inlet 4 and give vent to anger in outer cover body 1
The passage of mouth 10, is provided with filter course in described passage；Described air inlet 4 is for being opened in outer cover body 1 front end face and side
On through hole, a diameter of 3mm of described through hole；Described gas outlet 10 is opened on the rear end face of outer cover body 1, described
On the rear end face of outer cover body 1, the periphery in gas outlet 10 also offers air inlet；Described probe suction pipe 2 is steel pipe,
It is connected with described gas outlet 10, and the front end 2-1 of probe suction pipe 2 stretches into the lumen centers of described outer cover body 1, probe
Suction pipe 2 away from the rear end 2-2 of outer cover body with female thread 6, for being directly connected to leak detector suction pipe screw thread；Described mistake
Filtering layer is the sponge filter core 3 being filled between described outer cover body 1 and probe suction pipe 2, is used for filtering dirt, blocking water and oil resistance；
Described outer cover body 1 is provided with to be opened/closed renovating, described in renovate with snap close 5, can raise renovating for changing
Sponge filter core 3.
The leak detection suction gun probe of the present embodiment, air inlet is opened on front end face and the side of outer cover body, expands effectively inspection
Surveying area, detection efficiency is high；During detection, outer cover body can directly contact sealing surface to be detected, once contacts the liquid such as oil, water
Body, removes probe immediately, and owing to there being the existence of sponge filter core, short-time contact liquid will not enter inside probe suction pipe, protects
The entrance of the impurity such as dust, profit can be prevented effectively from while card accuracy of detection；Simultaneously as the front end face of outer cover body,
All offer air inlet on side and rear end face, occur that the air inlet in this face is of short duration stifled when a face contacts sealing surface to be detected
During plug, it is unlikely to make detection equipment occur building the pressure and cause device damage, can guarantee that detection procedure is smoothed out.
Embodiment 2
The leak detection suction gun assembly of the present embodiment, as in figure 2 it is shown, include the leak detection suction gun described in suction gun 7 and embodiment 1 of hunting leak
Probe, the front end suction pipe 9 of described leak detection suction gun 7 is provided with external screw thread 8, has with the probe suction pipe 2 of described leak detection suction gun probe
There is the rear end 2-2 of female thread 6 threaded.
When the leak detection suction gun assembly of the present embodiment uses, after the sponge filter core blocking in leak detection suction gun probe, can directly change inspection
Leakage suction gun probe, convenient detection work proceeds.By removable for this leak detection suction gun probe suction gun front end former with helium mass spectrometer leak detector
Unload connection, then be connected to helium mass spectrometer leak detector main frame by suction pipe and use；For the airtight test of generator system,
Can at many dirt, have oil, detect under the working environment that has water, be prevented effectively from device damage, extension device service life,
Significantly save the cost of overhaul to use；This leak detection suction gun probe can directly contact sealing surface by probing shell and detect, and can be effectively improved inspection
Survey precision, it is ensured that detection is smoothed out, improve detection efficiency；Changing leak detection suction gun probe simple and fast, work efficiency is high,
Easy to use.
In other embodiments of leak detection suction gun assembly of the present utility model, leak detection suction gun may be used without it with leak detection suction gun probe
His mode that removably connects, such as clamping etc., as long as can guarantee that and being reliably connected and seal, is all feasible.
Claims (10)
1. one kind leak detection suction gun probe, it is characterised in that: include probing shell, described probing shell be provided with air inlet and
Gas outlet, has connection air inlet and the passage of gas outlet, is provided with filter course in described passage in probing shell；Described air inlet
Mouth is opened on front end face and the side of probing shell.
Leak detection suction gun the most according to claim 1 is popped one's head in, it is characterised in that: described probing shell includes outer cover body
With probe suction pipe, described air inlet and gas outlet be opened on described outer cover body, and described probe suction pipe is connected with gas outlet.
Leak detection suction gun the most according to claim 2 is popped one's head in, it is characterised in that: described outer cover body is cubic type.
Leak detection suction gun the most according to claim 3 is popped one's head in, it is characterised in that: described gas outlet is opened in outer cover body
Rear end face on.
Leak detection suction gun the most according to claim 4 pop one's head in, it is characterised in that: on the rear end face of described outer cover body
The periphery of gas outlet also offers air inlet.
Leak detection suction gun the most according to claim 2 is popped one's head in, it is characterised in that: described probe suction pipe is connected with gas outlet
One end stretch into the lumen centers of outer cover body.
Leak detection suction gun the most according to claim 6 pop one's head in, it is characterised in that: described filter course for be filled in described outside
Filtration sponge between shell body and probe suction pipe or sponge filter core.
Leak detection suction gun the most according to claim 7 is popped one's head in, it is characterised in that: described outer cover body is provided with can opening and closing
Renovate, be used for changing filter course.
9. a leak detection suction gun assembly, it is characterised in that: include the inspection according to any one of suction gun and claim 1-8 of hunting leak
Leakage suction gun probe, described leak detection suction gun probe gas outlet or probe suction pipe away from outer cover body one end with described leak detection inhale
Rifle front end removably connects.
Leak detection suction gun assembly the most according to claim 9, it is characterised in that: described probe suction pipe is away from outer cover body
One end be provided with screw thread, for leak detection suction gun nose threads be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410200.9U CN205642753U (en) | 2016-05-06 | 2016-05-06 | Leak hunting suction gun probe and leak hunting suction gun subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410200.9U CN205642753U (en) | 2016-05-06 | 2016-05-06 | Leak hunting suction gun probe and leak hunting suction gun subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205642753U true CN205642753U (en) | 2016-10-12 |
Family
ID=57050517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620410200.9U Expired - Fee Related CN205642753U (en) | 2016-05-06 | 2016-05-06 | Leak hunting suction gun probe and leak hunting suction gun subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205642753U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981221A (en) * | 2020-09-18 | 2020-11-24 | 珠海格力智能装备有限公司 | Connecting device and automatic detection system with same |
| CN113916458A (en) * | 2021-09-23 | 2022-01-11 | 深圳华尔升智控技术有限公司 | Multipurpose high-stability helium mass spectrometer leak detector with high detection precision |
| CN115855383A (en) * | 2022-12-02 | 2023-03-28 | 苏州中科科仪技术发展有限公司 | Suction gun maintenance device, maintenance calibration device and method |
-
2016
- 2016-05-06 CN CN201620410200.9U patent/CN205642753U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981221A (en) * | 2020-09-18 | 2020-11-24 | 珠海格力智能装备有限公司 | Connecting device and automatic detection system with same |
| CN113916458A (en) * | 2021-09-23 | 2022-01-11 | 深圳华尔升智控技术有限公司 | Multipurpose high-stability helium mass spectrometer leak detector with high detection precision |
| CN115855383A (en) * | 2022-12-02 | 2023-03-28 | 苏州中科科仪技术发展有限公司 | Suction gun maintenance device, maintenance calibration device and method |
| CN115855383B (en) * | 2022-12-02 | 2023-09-26 | 苏州中科科仪技术发展有限公司 | Suction gun maintenance device, maintenance calibration device and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20180506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |