CN207231869U - A kind of gas sampling inlet duct - Google Patents
A kind of gas sampling inlet duct Download PDFInfo
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- CN207231869U CN207231869U CN201721230641.1U CN201721230641U CN207231869U CN 207231869 U CN207231869 U CN 207231869U CN 201721230641 U CN201721230641 U CN 201721230641U CN 207231869 U CN207231869 U CN 207231869U
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Abstract
The utility model belongs to Environment features equipment technical field; disclose a kind of gas sampling inlet duct; including infrastructure component; infrastructure component includes sampling gun; sampling gun front end is removably connected with sampling gun import department; rear end is removably connected with sampling detector for multifunctional, and sampling gun is connected with sampling detector for multifunctional by sampling protection of pipe hose, and infrastructure component is used for single-point sampling configuration；Sampling gun import department removably connects functional different feature sampling head, is respectively used to Surface scan pattern and monitoring station pattern.The utility model realizes the purpose of a tractor serves several purposes by assembling different feature sampling heads on the basis of infrastructure component, solves the problem of single existing SOIL GAS sampling apparatus purposes, gas leakage pollution, bulky, inconvenient to carry and inefficiency.
Description
Technical field
It the utility model is related to Environment features equipment technical field, more particularly to a kind of gas sampling inlet duct.
Background technology
With issue in 2016《Soil Pollution Control action plan》With the development of auxiliary work, contaminated site investigation is repaiied
Multiple industry enters a booming period, wherein, space enrironment quality-monitoring is both environmentally friendly authorities' routine work
Demand, and be carry out investigation and repair basis.There is the work largely carried over due to industrial upgrading transition in current China
Industry contaminated site, these plot are substantially all can there are volatility or semi-volatile organic matter (VOCs/SVOCs).These volatilizations
The different zones of property or half volatile organic contaminant in place exist in different forms.For example, volatility or half in the soil
Volatile organic contaminant is more to be present in the pore structure of soil matrix in the form of SOIL GAS；Then waved on the place of excavation
Send out into the disperse air mass of ground proximity；In addition these air mass can be also diffused into air.
Current conventional contaminated site inlet duct can be divided into adsorbent solid extraction method, gas gathering mask according to principle difference
Measure flux method or collection airbag sampling method.These three methods all there are it is certain the defects of：First, adsorbent solid extraction method sum aggregate
Airbag sampling method is required for gaseous sample taking back lab analysis, and there are gas leakage and secondary pollution in sample transportational process
Risk, and can not realize that Site Detection is analyzed, the whole sample detecting cycle is long, efficiency is low；Secondly, although gas gathering mask flux method
Fast analyser (such as the handheld device such as PID) can be coordinated to be analyzed and processed at the scene, but gas gathering mask or gas collection dress
Put that volume itself is larger, and mobility is excessively poor, it is inconvenient for operation, it is impossible to meet the needs of contaminated site SOIL GAS detection and analysis.
Utility model content
The purpose of this utility model is to provide a kind of gas sampling inlet duct, to solve existing SOIL GAS sampling apparatus
The problem of purposes is single, gas leakage pollutes, is bulky, inconvenient to carry and inefficiency.
For this purpose, the utility model uses following technical scheme：
A kind of gas sampling inlet duct, including infrastructure component, the infrastructure component include sampling gun, before the sampling gun
End is dismountable to be connected with sampling gun import department, and rear end is removably connected with sampling detector for multifunctional, the sampling gun and sampling
Detection device is connected by sampling protection of pipe hose, and the infrastructure component is used for single-point sampling configuration；
The sampling gun import department removably connects functional different feature sampling head, is respectively used to Surface scan mould
Formula and monitoring station pattern.
The device possesses three kinds of working morphologies, corresponds respectively to three kinds of operating modes, first, the sampling of soil gas well is single-point
Sampling configuration, second, the whole audience SOIL GAS distribution scanning be Surface scan pattern, third, contaminated site ambient atmosphere monitoring i.e. monitor
Stand pattern, wherein latter two working morphology is to be sampled on the basis of the first working morphology by connecting different features
What head was realized, the purpose of a tractor serves several purposes is realized, and gas componant detection and analysis can be carried out in collection site, avoid sample
Gas leakage present in transportational process and the risk of secondary pollution, shorten the whole sample detecting cycle, improve work efficiency.
Preferably, when the feature sampling head is air inlet bucket, for Surface scan pattern, when the feature samples
When head is sampling head, for monitoring station pattern.Infrastructure component coordinates air inlet bucket to overflow using that can find out whole contaminated site
Go out the pollution SOIL GAS distribution situation on ground；Infrastructure component coordinates sampling head to use, supporting to be installed on fixed monitoring station
On, for carrying out the work that long term monitoring is carried out to contaminated site escaping gas.
Preferably, the sampling gun includes the internal sampling barral of a gun in hollow structure, it is arranged in the sampling barral of a gun
Sampling pipe, the sampling barral of a gun grip being detachably connected with the sampling gun rod rear end, positioned at the sampling barral of a gun grip rear end
Sampling pipe protection pipe fitting, it is described sampling barral of a gun grip and the sampling pipe protection pipe fitting between be provided with anti-skid structure,
The sampling pipe protection pipe fitting is used to connect the sampling protection of pipe hose.
When needing replacing feature sampling head, operating personnel's needs hold sampling barral of a gun grip and complete this process；
When actually using the device, operating personnel hold sampling barral of a gun grip, and buttress sampling pipe protection pipe fitting, smooth out with the fingers and are protected along sampling pipe
Hose is protected, then carries out follow-up air inlet detection work.Set anti-skid structure purpose be for installation sampling barral of a gun grip and
Sampling pipe provides hold when protecting pipe fitting.
Preferably, the sampling gun import department includes the sampling gun mouth positioned at front end, the sampling gun mouth is hollow
Structure, described sampling gun mouth one end is inlet end, and for being contacted with soil or outside atmosphere, the other end is connected with the sampling gun
It is logical.
It can pass through the collection with soil or with atmosphere progress gas, suction in three kinds of operating mode down-sampling rifle mouths
Gas entered by the hollow cavity of sampling gun mouth in the sampling barral of a gun hollow cavity for the sampling gun being attached thereto, and then pass through
Protection of pipe hose is sampled to enter in sampling detector for multifunctional.
Preferably, the sampling gun import department further includes sampling pipe adapter, the sampling pipe adapter is located at the sampling
In the hollow cavity of barral of a gun, one end is connected with the sampling pipe, and the other end is connected with sampling pipe nipple, and the sampling pipe nipple is not
The one end for connecting the sampling pipe adapter is connected with the hollow cavity of the sampling gun mouth.
By setting sampling pipe to take over and sampling pipe nipple, sampling pipe is connected with sampling gun mouth, and then realize sampling
Detection device and the connection of sampling gun mouth, so as to fulfill the function of device air inlet detection.
Preferably, being provided with filter membrane and filter membrane net support in the sampling gun mouth, the filter membrane net support is close to institute
State sampling pipe nipple to set, the filter membrane is close to the filter membrane net support and is set, for filtering the bulky grain sucked in gas
Impurity.Impurity particle thing is inevitably had in suction gas, if these large granular impurities enter detection device with gas, can be influenced
The testing result of gas componant.
Preferably, the sampling pipe adapter is connected with the sampling pipe using socket Quick Release mode.Due to sampling barral of a gun
For elongated tubular construction, therefore the sampling pipe being located therein is the elongated tubular construction of caliber smaller, its design feature causes it
Operation installation space is limited, so the connection mode of sampling pipe adapter and sampling pipe is arranged to socket Quick Release mode, it is not only square
Just operation installation is carried out in small space, and docking is not accurate error-prone, saves built-up time, improves stable connection
Property.
Preferably, the sampling head is in mushroom-shaped, it is made of the dust cover of cap type and the sampling handle of stem type,
The sampling handle is hollow structure, and one end of the sampling handle is removably connected in the concave face of the dust cover, described
The other end of sampling handle is removably connected to the end of the sampling gun mouth, the sampling handle be connected with the dust cover one
End is circumferentially provided with several elongate holes, and the elongate holes form with the hollow cavity of the sampling handle and connect outside atmosphere
Airintake wind-tunnel.
, will when the sampling inlet duct, which is used to carry out, carries out long term monitoring to the organic pollutant of contaminated site effusion
The device for being equipped with sampling head hangs over specified altitude assignment and connects monitoring device, you can carries out fixed station monitoring.Wherein bacterium
The dust cover of cap-type plays the role of blocking to sampling gun mouth, and Atmospheric precipitation or other bad weathers can be prevented to the sampling
The influence of inlet duct, so as to cause testing result inaccurate.The elongate holes that sampling handle circumferentially opens up are conducive to surrounding atmosphere
Quickly sucked in sampling gun mouth, subsequently into monitoring device detection gas component, simplify sampling process, shorten monitoring week
Phase.
It is connected preferably, the air inlet bucket connects form with the sampling gun mouth using embedded quick, the air inlet bucket is not
One end end face for connecting the sampling gun import department is provided with Air Filter.The connection mode that embedded quick connects form can significantly contract
The short times for replacing feature sampling head, sampling and the detection process of SOIL GAS are greatly simplify, shortens the whole work period,
With the filtration module in sampling gun mouth into double barrier, the common double protection realized to air inlet gas circuit, is improved Air Filter
Gas componant tests and analyzes the accuracy of result.
Preferably, the end of the sampling gun mouth is provided with screw thread, the end of the sampling handle and the sampling gun mouth
Connect form connection soon using screw thread.Connect the form connection same time for shortening replacement feature sampling head soon using screw thread, simplify
The spot sampling and detection process of SOIL GAS, are threaded on sampling gun mouth, can also connect other screwed functions
Property sampling head.
The beneficial effects of the utility model：
The utility model provide it is a kind of it is simple and reliable for structure, easy to carry, sample inlet duct easily to operate, the dress
Put and only coordinate follow-up detection device by replacing different feature sampling heads, just can realize the purpose of a machine three-use, respectively
Applied to soil gas well sampling (single-point sampling configuration), the whole audience SOIL GAS distribution scanning (Surface scan pattern) and contaminated site it is all
In three kinds of operating modes of side atmospheric monitoring (monitoring station pattern), the switching of Three models is succinctly quick, and sampling detector for multifunctional exists
Composition detection analysis can be carried out to gaseous sample by sampling gas collection scene, avoid gas leakage present in sample transportational process and two
The risk of secondary pollution, greatly simplify sampling and the detection process of SOIL GAS, improve contaminated site sampling and composition detection
Work efficiency, there is very high practical value, be conducive to promote contaminated site SOIL GAS Site Detection and monitoring technology.
Brief description of the drawings
Fig. 1 is the overall appearance schematic diagram of the utility model sampling inlet duct；
Fig. 2 is the main structure chart of the utility model sampling inlet duct；
Fig. 3 is the sectional view along A-A in Fig. 2；
Fig. 4 is partial enlarged view at B in Fig. 3；
Fig. 5 is the air inlet bucket structure figure of the utility model sampling inlet duct；
Fig. 6 is the appearance diagram that the utility model sampling inlet duct is equipped with air inlet bucket；
Fig. 7 is the appearance diagram that the utility model sampling inlet duct is equipped with sampling head；
Fig. 8 is C-C in Fig. 7 to sectional view.
In figure, the corresponding parts title of reference numeral is as follows：
1st, infrastructure component；2nd, air inlet bucket；3rd, sampling head；
11st, sampling gun；12nd, sampling gun import department；13rd, sampling detector for multifunctional；14th, protection of pipe hose is sampled；15th, sampling gun
Bar grip；16th, sampling pipe protection pipe fitting；17th, anti-skid structure；
111st, barral of a gun is sampled；112nd, sampling pipe；
121st, sampling gun mouth；122nd, sampling pipe is taken over；123rd, pipe nipple is sampled；124th, filter membrane；125th, filter membrane net support；
126th, air admission hole；
21st, Air Filter；
31st, dust cover；32nd, handle is sampled；33rd, elongate holes.
Embodiment
For make present invention solves the technical problem that, the technical solution that uses and the technique effect that reaches it is clearer, below
The technical solution of the utility model is further illustrated with reference to attached drawing and by embodiment.
The present embodiment provides a kind of gas sampling inlet duct, including infrastructure component 1, infrastructure component 1 includes sampling gun 11,
11 front end of sampling gun is removably connected with sampling gun import department 12, and rear end is removably connected with sampling detector for multifunctional 13, adopts
Sample rifle 11 is connected with sampling detector for multifunctional 13 by sampling protection of pipe hose 14, and the infrastructure component 1 of said structure is used for SOIL GAS
Well sampling is single-point sampling configuration.In addition, sampling gun import department 12 can also removably the different feature of linkage function adopt
Sample head, for other operating modes.
Wherein, sampling gun includes the internal sampling barral of a gun 111 in hollow structure, samples in barral of a gun 111 and is provided with sampling pipe
112,111 rear end of sampling barral of a gun is removably connected with sampling barral of a gun grip 15,15 rear end connection sampling pipe of sampling barral of a gun grip
Pipe fitting 16 is protected, is provided with anti-skid structure 17 between the two, it is soft that sampling pipe protection pipe fitting 16 is used for connection sampling protection of pipe
Pipe 14, the length of sampling protection of pipe hose 14 should meet the sampling needs on whole audience ground.When needing replacing feature sampling head, behaviour
Make personnel and need to hold sampling barral of a gun grip 15 to complete this process；When actually using the device, operating personnel hold sampling
15 part of barral of a gun grip, and buttress sampling pipe protection pipe fitting 16, is smoothed out with the fingers along sampling protection of pipe hose 14, then carry out it is follow-up into
Gas detects work.When setting the purpose of anti-skid structure 17 to be to protect pipe fitting 16 for installation sampling barral of a gun grip 15 and sampling pipe
Hold is provided.The mode that barral of a gun grip 15 is connected through a screw thread is sampled in the present embodiment to be loaded and unloaded with sampling barral of a gun 111.
Wherein, sampling gun import department 12 includes the sampling gun mouth 121 positioned at front end, and sampling gun mouth 121 is hollow structure,
Its end is inlet end, and for being contacted with soil or outside atmosphere, the other end is connected with sampling gun 11, sampling gun mouth 121
End is provided with screw thread, for linkage function sampling head.Specifically, offer some air admission holes in 121 end of sampling gun mouth
126, gas enters sampling gun mouth 121 by air admission hole 126, and then enters phase therewith by the hollow cavity of sampling gun mouth 121
In the hollow cavity of sampling barral of a gun 111 even, then entered by sampling protection of pipe hose 14 in sampling detector for multifunctional 13.Air inlet
The selection of 126 number of hole needs the minimum requirements according to air inflow and sets.
Sampling gun import department 12 further includes sampling pipe adapter 122, and sampling pipe adapter 122 is hollow positioned at sampling barral of a gun 111
In inner cavity, its one end is connected with sampling pipe 112, and the other end is connected with sampling pipe nipple 123, and sampling pipe nipple 123 is not connected to be adopted
One end of sample pipe adapter 122 is connected with the hollow cavity of sampling gun mouth 121.Specifically, sampling pipe adapter 122 and sampling pipe
112 are connected using socket Quick Release modes, this is because, sampling barral of a gun 111 is elongated tubular construction, therefore the sampling being located therein
Pipe 112 is the elongated tubular construction of caliber smaller, its design feature causes operation installation space to be limited, so using socket Quick Release
Mode, not only facilitates and carries out operation installation in small space, but also docking is not accurate error-prone, saves built-up time, improves
Connective stability.By setting sampling pipe adapter 122 and sampling pipe nipple 123, by sampling pipe 112 and 121 phase of sampling gun mouth
Connection, and then realize the connection of sampling detector for multifunctional 13 and sampling gun mouth 121, so as to fulfill the function of device air inlet detection.
Further, to filter out the large granular impurity in suction gas, filter membrane is additionally provided with sampling gun mouth 121
124 and filter membrane net support 125, filter membrane net support 125, which is close to sample pipe nipple 123, to be set, and filter membrane 124 is close to filter membrane net support
125 are set, for filtering the large granular impurity sucked in gas.Since the gas of collection is organic gas, therefore it is required that herein
124 material of filter membrane of use should be made of the inert material being esterified completely, ensure that the filter membrane 124 will not adsorb collection with this
Organic substance in gas and any chemical reaction does not occur therewith, so as to avoid the organic pollution materials concentration of collection gas inclined
It is low, influence the accuracy of final detection result.It is understood that filter membrane 124 can be cellulose acetate sheets or poly- four
Vinyl fluoride filter membrane.The present embodiment preferentially selects cellulose acetate sheets, on the selection of filter sizes, to be considered, aperture
Too small that vapour lock loss can be caused excessive, aperture is too big cannot then to meet filtering requirement, and the present embodiment is by cellulose acetate sheets hole
Footpath is chosen to be 3 microns of sizes that industry is passed through, and can take into account filtering requirement at the same time and vapour lock loss requires.Regarded after the completion of use
The pollution condition of sampling gun mouth 121 replaces filter membrane 124 or cleaning filter membrane net support 125, ensures effective mistake when next time uses
Filter acts on, and since 11 front end of sampling gun and sampling gun import department 12 are detachable, work as and needs replacing filter membrane 124 or cleaned
During filter membrane net support 125, sampling gun import department 12 is pulled down, is loaded onto again after the completion of cleaning replacement.
Wherein, air pump and detection and analysis instrument are provided with sampling detector for multifunctional 13, in actual use, air pump is sampling
Rifle mouth 121 sucks gas and provides power, to complete intake process, by the caliber and the sampling that limit sampling protection of pipe hose 14
Time, so that the flow for sucking gas is defined, therefore when the gas flow of suction reaches predetermined value, the sampling air inlet
Device is automatically stopped pumping process, and sampling air inlet work is completed, and uses the simplicity of saving worry that operates.Also, the restriction of air inflow
It when carrying out multiple repairing weld to same single-point or Same Site region, can ensure the uniformity of the amount of each gaseous sample, from
And improve accuracy of detection.
Feature sampling head in the present embodiment can be air inlet bucket 2, and SOIL GAS distribution scanning is that face is swept for the whole audience
Pattern is retouched, the pollution SOIL GAS distribution situation that whole contaminated site overflows ground can be found out.Air inlet bucket 2 and sampling gun mouth
121 connect form connection using embedded quicks, embedded quick connect form connection mode can significantly shorten replace air inlet bucket 2 when
Between, greatly simplify sampling and the detection process of SOIL GAS, shorten the whole work period.Air inlet bucket 2 is not connected with sampling gun import
One end end face in portion is provided with Air Filter 21, and Air Filter 21 forms double barrier with the filter membrane 124 in sampling gun mouth 121, altogether
With the double protection realized to air inlet gas circuit, the accuracy that gas componant tests and analyzes result is improved.And the present embodiment pair
The structure of air inlet bucket 2 has carried out the hydrodynamics optimization design under particular flow rate, alleviates the weight of air inlet bucket 2, improves this
Inlet duct carrying when carrying out Surface scan work and mobility are sampled, compact is easy to operate, and efficiency improves.
Feature sampling head in the present embodiment can also be sampling head 3, supporting to be installed on fixed monitoring station, use
The work of long term monitoring is carried out to contaminated site escaping gas in development.Sampling head 3 is in mushroom-shaped, by the anti-of cap type
The sampling handle 32 of dust hood 31 and stem type forms, and sampling handle 32 is hollow structure, and its one end is removably connected to dust cover 31
Concave face in, the other end is removably connected at the screw thread of the end of sampling gun mouth 121, wherein, sampling handle 32 with it is dust-proof
One end of the connection of cover 31 is circumferentially arranged several elongate holes 33, and elongate holes 33 are formed with sampling the hollow cavity of handle 32
Connect the airintake wind-tunnel of outside atmosphere.
When the organic pollutant that the sampling inlet duct escapes contaminated site carries out long term monitoring, will be equipped with big
The device of gas sampling head 3 hangs over specified altitude assignment and connects monitoring device, you can carries out fixed station monitoring.Wherein cap type is anti-
Dust hood 31 plays the role of blocking to sampling gun mouth 121, can prevent Atmospheric precipitation or other bad weathers to this sample into
The influence of device of air, so as to cause testing result inaccurate.It is big that the elongate holes 33 that sampling handle 32 circumferentially opens up are conducive to surrounding
Gas can be sucked quickly in sampling gun mouth 121, subsequently into monitoring device detection gas component, simplifies sampling process,
Monitoring cycle is shortened, is improved work efficiency.
In the present embodiment, the end of sampling gun mouth 121 is provided with screw thread, the end of sampling head 3 and sampling gun mouth 121
Connect form connection soon using screw thread.Due to being to be suspended in certain specified altitude assignment, spiral shell when the device is applied to monitoring station pattern
The form of line connection can increase connection strong degree to a certain extent, prevent since gravity, suspension time are too long or wind and rain
Etc. weather conditions, sampling gun mouth 121 departs from the phenomenon even therefrom to come off with sampling head 3 and occurs, and ensures that the device can
Used for a long time in monitoring station.In addition, the type of attachment that screw thread connects soon can shorten the time for replacing sampling head 3, simplify
Air inlet and monitoring detection process are sampled, improves work efficiency.
The application method of the sampling inlet duct is illustrated below：
When the single-point sampling configuration using the device carries out soil gas well sampling operation, operating personnel hold sampling gun
Bar grip 15, and buttress sampling pipe protection pipe fitting 16, is smoothed out with the fingers along sampling protection of pipe hose 14, sequentially by sampling gun mouth 121 and is adopted
Sample rifle 11 is sent in the SOIL GAS detection drilling accomplished fluently, and is then turned on ground sampling detector for multifunctional 13, is started intake process,
After the tolerance for meeting setting value is collected into, closing ground sampling detector for multifunctional 13 and holding sampling barral of a gun grip 15 entirely to visit
Enter part and pull out SOIL GAS detection drilling, so far sample air inlet work and complete.
When with carrying out the whole audience SOIL GAS distribution scanning of the Surface scan pattern using the device, operating personnel hold sampling
Barral of a gun grip 15, connects form by embedded quick with sampling gun mouth 121 by air inlet bucket 2 and is assembled, and opens ground after the completion of assembling
Surface sample detection device 13, holds the device ground on the scene walking and makes an inspection tour, and SOIL GAS is sucked detection device.
When the monitoring station pattern using the device, which carries out contaminated site ambient atmosphere, to be monitored, operating personnel hold sampling
Barral of a gun grip 15, connects form by screw thread with 121 end of sampling gun mouth by sampling head 3 and is assembled soon, and assembling is completed will
It is suspended on specified altitude assignment and connects monitoring device, you can carries out long-term fixed station monitoring.
Above-mentioned sampling inlet duct provided by the utility model, the device have three kinds of working morphologies, correspond respectively to three
Kind operating mode, wherein latter two working morphology is to pass through connection in the structure of infrastructure component 1 in the first working morphology
Assemble what different feature sampling heads was realized, simple and reliable for structure, volume is light and handy, easy to carry and easy to operate, after cooperation
Continuous detection device can achieve the purpose that a machine three-use, and the switching of three kinds of operating modes is realized by connecing mode soon, replace
Simply, it is time saving and energy saving, the work efficiency of contaminated site gas sampling and composition detection is greatly improved, is conducive to promote pollution
Place SOIL GAS Site Detection and monitoring technology, have very high practical value.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made where within the spirit and principles of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (10)
1. a kind of gas sampling inlet duct, it is characterised in that including infrastructure component (1), the infrastructure component (1) includes sampling
Rifle (11), sampling gun (11) front end are removably connected with sampling gun import department (12), and rear end is removably connected with and adopts
Sample detection device (13), the sampling gun (11) are connected with sampling detector for multifunctional (13) by sampling protection of pipe hose (14), institute
State infrastructure component (1) and be used for single-point sampling configuration；
The sampling gun import department (12) removably connects functional different feature sampling head, is respectively used to Surface scan mould
Formula and monitoring station pattern.
2. gas sampling inlet duct according to claim 1, it is characterised in that when the feature sampling head is air inlet
During bucket (2), for Surface scan pattern, when the feature sampling head is sampling head (3), for monitoring station pattern.
3. gas sampling inlet duct according to claim 2, it is characterised in that the sampling gun (11) is in including inside
The sampling barral of a gun (111) of hollow structure, the sampling pipe (112) being arranged in the sampling barral of a gun (111), the sampling pipe
(112) one end is connected with the sampling protection of pipe hose (14), and the other end is connected with the sampling gun import department (12), described to adopt
Sample barral of a gun (111) rear end is removably connected with sampling barral of a gun grip (15), positioned at described sampling barral of a gun grip (15) rear end
Sampling pipe protection pipe fitting (16), is provided between the sampling barral of a gun grip (15) and sampling pipe protection pipe fitting (16)
Anti-skid structure (17), the sampling pipe protection pipe fitting (16) are used to connect the sampling protection of pipe hose (14).
4. gas sampling inlet duct according to claim 3, it is characterised in that the sampling gun import department (12) includes
Sampling gun mouth (121) positioned at front end, the sampling gun mouth (121) are hollow structure, and described sampling gun mouth (121) one end is
Inlet end, for being contacted with soil or outside atmosphere, the other end is connected with the sampling gun (11).
5. sampling inlet duct according to claim 4, it is characterised in that the sampling gun import department (12), which further includes, adopts
Sample pipe takes over (122), sampling pipe adapter (122) in the hollow cavity of the sampling barral of a gun (111), one end with it is described
Sampling pipe (112) connects, and the other end is connected with sampling pipe nipple (123), and the sampling pipe nipple (123) is not connected with the sampling
One end of pipe adapter (122) is connected with the hollow cavity of the sampling gun mouth (121).
6. sampling inlet duct according to claim 5, it is characterised in that be provided with the sampling gun mouth (121)
Filter membrane (124) and filter membrane net support (125), the filter membrane net support (125) are close to the sampling pipe nipple (123) and are set, institute
State filter membrane (124) and be close to filter membrane net support (125) setting, for filtering the large granular impurity sucked in gas.
7. sampling inlet duct according to claim 5, it is characterised in that the sampling pipe adapter (122) is adopted with described
Sample pipe (112) is connected using socket Quick Release mode.
8. sampling inlet duct according to claim 4, it is characterised in that the sampling head (3) is in mushroom-shaped, bag
Include the dust cover (31) of cap type and the sampling handle (32) of stem type, the sampling handle (32) is hollow structure, the sampling handle
(32) one end is removably connected in the concave face of the dust cover (31), and the other end of the sampling handle (32) is detachable
The end for being connected to the sampling gun mouth (121), it is described sampling handle (32) be connected with the dust cover (31) one end circumferential direction
Several elongate holes (33) are provided with, the elongate holes (33) connect outer with the hollow cavity formation of the sampling handle (32)
The airintake wind-tunnel of portion's air.
9. sampling inlet duct according to claim 4, it is characterised in that the air inlet bucket (2) and the sampling gun mouth
(121) form connection is connect using embedded quick, the air inlet bucket (2) is not connected with one end end face of the sampling gun import department (12)
It is provided with Air Filter (21).
10. sampling inlet duct according to claim 8, it is characterised in that the end of the sampling gun mouth (121) is set
There is screw thread, the sampling handle (32) connects form using screw thread with the end of the sampling gun mouth (121) and is connected soon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721230641.1U CN207231869U (en) | 2017-09-25 | 2017-09-25 | A kind of gas sampling inlet duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721230641.1U CN207231869U (en) | 2017-09-25 | 2017-09-25 | A kind of gas sampling inlet duct |
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| Publication Number | Publication Date |
|---|---|
| CN207231869U true CN207231869U (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721230641.1U Active CN207231869U (en) | 2017-09-25 | 2017-09-25 | A kind of gas sampling inlet duct |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421788A (en) * | 2017-09-25 | 2017-12-01 | 北京南科大蓝色科技有限公司 | A kind of gas sampling inlet duct |
| CN109374363A (en) * | 2018-12-25 | 2019-02-22 | 同方威视技术股份有限公司 | A kind of electronic nose sampler |
-
2017
- 2017-09-25 CN CN201721230641.1U patent/CN207231869U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421788A (en) * | 2017-09-25 | 2017-12-01 | 北京南科大蓝色科技有限公司 | A kind of gas sampling inlet duct |
| CN109374363A (en) * | 2018-12-25 | 2019-02-22 | 同方威视技术股份有限公司 | A kind of electronic nose sampler |
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