CN110044665A - Liftable air sampling admission gear, low latitude sampling system and its method of sampling - Google Patents
Liftable air sampling admission gear, low latitude sampling system and its method of sampling Download PDFInfo
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- CN110044665A CN110044665A CN201910382225.0A CN201910382225A CN110044665A CN 110044665 A CN110044665 A CN 110044665A CN 201910382225 A CN201910382225 A CN 201910382225A CN 110044665 A CN110044665 A CN 110044665A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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Abstract
The present invention provides a kind of liftable air sampling admission gear, low latitude sampling system and its method of sampling.Liftable air sampling admission gear includes: balloon, air sampling air inlet pipe, drawstring, ground fixture.The air inlet of air sampling air inlet pipe is fixed on balloon lower part, and drawstring controls the lifting of balloon and air sampling air inlet pipe.Low latitude sampling system includes aspiration pump, surge flask, air sampler, liftable air sampling admission gear；Aspiration pump, surge flask, air sampler are all on surface-based adjusting table top or tripod.It is difficult to be placed on the technical problem of low latitude sampling point height the present invention overcomes air sampling equipment, can be sampled long lasting for low latitude.The low latitude sampling system can be installed on the spot, economic and practical, adapt to various environmental conditions, especially be avoided that for a long time the problems such as nuclear radiation environment down-sampling damages human health.
Description
Technical field
The present invention relates to air sampling apparatus field more particularly to a kind of liftable air sampling admission gears, with application
The air-ground integrated low latitude sampling system and its method of sampling of this air sampling admission gear.
Background technique
Currently, the sampler both at home and abroad for air analysis detection is many kinds of, it is divided into gas sampler and particulate matter (powder
Dirt) sampler two major classes.Air sampling suit component is made of sampler, flowmeter, gas production power three parts.Air sampling
Spatially distribution can be divided into ground surface sample, low latitude sampling, high and medium sampling.When ground surface sample, the height of sampled point is generally required
For human body breathing zone height (1.5m), sampling suit component is fixedly placed on table top or on tripod, table top or three is adjusted
Corner bracket makes the inlet port of sampler to sampling point height；When high and medium acquires air sample, because of sampling point position height, Chang Jiang
Sampling suit component is fixedly placed on the aircraft such as aircraft, unmanned plane, and sampling inlet port is exposed to outside aircraft fuselage,
Aircraft starts to sample when reaching the high sampled point of thousands of rice；Low latitude air sampling samples point height due to testing requirements difference
Within the scope of from several meters to hundreds of meters.In fact, high and medium air sampling is relatively fewer, low latitude air sampling and ground air are adopted
Sample application is more more extensively.
When low latitude air sampling at present, rack usually is set up in sampling location or places air sampling set using building
Arrangement is sampled according to the method that ground air samples.Small drone can also be used and place air sampling equipment, but is small
Type unmanned plane limited energy, is unable to satisfy the requirement long lasting for sampling.Especially when the day of low latitude test substance to be detected
When the cumulative concentrations of radioactive substances such as equal concentration, detection radon, in low latitude, sampled point will be carried out up to more than ten hour, tens
The sampling of hour or even a few days, several weeks；At the nuclear radiation scene for facing large area, sample collector cannot long lasting for
Spot sampling；When spacious location carries out low latitude air sampling, not for the building utilized, if sampling point height compares
Height, it is economically not cost-effective to set up rack, technically infeasible；It can not also be sampled with aircraft or unmanned plane under the conditions of low latitude；Air
Sample devices component is relatively cumbersome, can not be promoted with conventional method to low latitude air sampling point height.Encounter these situations
Low latitude air sampling difficulty is very big.
Therefore, it is necessary to provide the air-ground integrated low latitude air sampling equipment of one kind and its above-mentioned technology hardly possible of method of sampling solution
Topic.
Summary of the invention
The present invention provides a kind of liftable air sampling admission gear and air-ground integrated low latitude sampling system and its adopts
Quadrat method, low latitude air sampling can not be carried out in spacious location and hold for a long time by solving existing sample devices and the method for sampling
The problem of continuous sampling.
In order to solve the above technical problems, liftable air sampling provided by the invention admission gear, comprising: balloon, air
Air inlet pipe, drawstring, ground fixture are sampled, the air inlet of the air sampling air inlet pipe is fixed below the balloon, and should
Air inlet is exposed in the sampled point air of low latitude, the air sampling air inlet pipe other end and the surge flask air inlet for being fixed on ground
Mouth is connected, and described drawstring one end is fixed on the balloon, and the other end is fastened in the ground fixture.When loosening drawstring,
Balloon rises, and when the air inlet of air sampling air inlet pipe rises to scheduled sampling point height with it, is fixed on ground for drawstring
On the fixture of face, low latitude sampled point air sample can be acquired.
Preferably, a string bag is designed in the balloon exterior, the drawstring is fixed on the string bag lower end, by the gas
Ball is placed in the string bag.It can prevent from balloon from undesirably falling off drawstring in this way to fly in the air, prevented also from because of balloon unbalance stress
And it is pulled open.
Preferably, design has the graduation mark for indicating length in the air sampling air inlet pipe, can accurately slap in this way
Hold the raised height of balloon.When the balloon drives the air inlet of the air sampling air inlet pipe to increase, the graduation mark is indicated
When having risen to sampling point height, the drawstring stopping lengthens, and is fixed in the ground fixture.
Air-ground integrated low latitude sampling system provided by the invention includes: aspiration pump, surge flask, air sampler, institute
Liftable air sampling admission gear is stated, tee tube, the threeway on the surge flask are connected on the gas outlet of the surge flask
Pipe is connected respectively there are two gas outlet with the air inlet of the air inlet of the air sampler and the aspiration pump, it is described can
Air sampling air inlet pipe lower end in lifting air sampling admission gear is connected with the air inlet of the surge flask, the pumping
Pump, surge flask, air sampler are placed on the adjusting table top or tripod on ground, the air inlet in the air sampling air inlet pipe
Mouth is promoted to scheduled air sampling point height with the balloon, is fastened in the ground fixture by the drawstring, with
Control the adjustable height of the balloon Yu the enterprising port of air sampling air inlet pipe.
Preferably, the ground fixture is winding mechanism, and the regulating platform face on ground includes bottom plate, transverse slat, described
Winding mechanism, the aspiration pump, surge flask, air sampler bottom be fixed on the bottom plate, the winding mechanism is fixed
In the top of transverse slat, described drawstring one end is fixed on the balloon or the string bag bottom end, and the other end is set to the winding mechanism
On.
Preferably, the winding mechanism includes the first fixed plate, the second fixed plate, rotating bar, winding cylinder, drawstring, turntable
And the rear side at the top of the transverse slat is fixed in turning handle, the bottom of first fixed plate, the bottom of second fixed plate is solid
Due to the front side at the top of the transverse slat, one end of the rotating bar rotates in the side of first fixed plate, the winding
The surface of the rotating bar is fixed in the inside of cylinder, and the drawstring is wound in the surface of the winding cylinder, one end of the drawstring
It is fixedly connected with the balloon or the string bag.
Preferably, the other end of the rotating bar through second fixed plate and extends to the one of second fixed plate
One end of the rotating bar is fixed at side, the back side of the turntable, and the surface of the turntable, institute are fixed in one end of the turning handle
It states to be fixed by the connecting rod at the top of transverse slat and is connected with clamping mechanism.
Preferably, the clamping mechanism includes clamping frame, sliding shoe, kelly, pull rod, pull handle and spring, the clamping frame
Bottom be fixed by the connecting rod in the top of the transverse slat, the top and bottom of the sliding shoe slide on the clamping respectively
The side of the sliding shoe is fixed in the top and bottom of the inner wall of frame, one end of the kelly, the other end of the kelly according to
It is secondary to run through the clamping frame and the turntable and the inside for extending to the turntable.
Preferably, the side of the sliding shoe is fixed in one end of the pull rod, and the other end of the pull rod is through described
The other end of the pull rod, the spring are fixed in clamping frame and the outside for extending to the clamping frame, the side of the pull handle
It is set to the surface of the pull rod and is located between the side of sliding shoe and the side of the inner wall of the clamping frame, the turntable
Inside offers the card slot being used cooperatively with the kelly, the quantity of the card slot be it is multiple, and multiple card slots in etc. between
Away from distribution, the bottom of the transverse slat is fixedly connected with inserted link.
A kind of method of low latitude air sampling, comprising the following steps:
Firstly, aspiration pump, surge flask, air sampler are placed on the adjusting table top or tripod on ground, loosen drawing
Rope, after allowing balloon to rise to scheduled sampling point height together with the air inlet of air sampling air inlet pipe, drawstring is fastened and is consolidated in ground
On earnest；
Secondly, air sampling air inlet pipe lower end and the air inlet on surge flask are connected, and by surge flask outlet port
Connected with a mouth of tee tube, two gas outlets of tee tube by connecting pipe respectively with the air inlet of air sampler and
The air inlet of aspiration pump is connected, and goes through each node connection status, it is ensured that surge flask is adopted with air sampling air inlet pipe, air
It is closely coupled between sample device, aspiration pump；
Third step closes air sampler, opens aspiration pump, the live air of low latitude sampled point is drawn into buffering
Bottle replaces original air in surge flask and air sampling air inlet pipe；
4th step shuts down aspiration pump, opens air sampler, and first analog sampling regulates sampling flow, finally according to flat
Normal ground air method of sampling operation, acquires air sample.
Compared with the relevant technologies, liftable air sampling provided by the invention admission gear, low latitude sampling system and
Its method of sampling has the following beneficial effects:
The present invention drives the air inlet of air sampling air inlet pipe to rise by balloon, can be by graduation mark side on ground
Just it observes its height risen, when it reaches scheduled low latitude air sampling point height, is fixed by drawstring and ground
Object locking sampling open height.It overcomes air sampling equipment and is difficult to the technical problem promoted to low latitude air sampling point height, and
Air-ground integration is realized, low latitude sampling is sampled as ground, and operation is simple, can be long lasting for sampling；With ground
Rack ratio is set up in face, and low latitude sampling system can be installed on the spot, economic and practical；Wide adaptation range, under various environmental conditions
It can use, especially be avoided that for a long time the problem of nuclear radiation environment down-sampling damages human health；Pass through balloon external network
Pocket design, avoidable balloon undesirably fall off the phenomenon that drawstring flies away, pulls open balloon because of unbalance stress generation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of liftable air sampling provided by the invention admission gear；
Fig. 2 is a kind of preferable reality of liftable air sampling provided by the invention admission gear, low latitude sampling system
Apply the structural schematic diagram of example；
Fig. 3 is the portion A shown in Fig. 2 enlarged diagram；
Fig. 4 is the structural representation side view of transverse slat shown in Fig. 2；
Fig. 5 is the structural schematic diagram of clamping mechanism shown in Fig. 2；
Fig. 6 is the structural representation side view of turntable shown in Fig. 2.
Figure label: 11, balloon, 12, the air inlet of air sampling air inlet pipe, 13, air sampling air inlet pipe, 14, drawstring,
15, ground fixture, 16, the string bag, 17, graduation mark, 21, aspiration pump, 22, surge flask, 23, air sampler, 31, bottom plate, 32,
Transverse slat, 33, winding mechanism, the 331, first fixed plate, the 332, second fixed plate, 333, rotating bar, 334, winding cylinder, 335, turn
Disk, 336, turning handle, 337, card slot, 4, clamping mechanism, 41, clamping frame, 42, sliding shoe, 43, kelly, 44, pull rod, 45, pull handle,
46, spring, 5, inserted link.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
Fig. 1 is please referred to, Fig. 1 is the structural schematic diagram of liftable air sampling provided by the invention admission gear.It can
Lifting air sampling admission gear includes: balloon 11, the air inlet 12 of air sampling air inlet pipe, air sampling air inlet pipe 13, draws
Rope 14, ground fixture 15.The air inlet 12 of the air sampling air inlet pipe is fixed below the balloon 11 at 2 meters, is allowed to
It is spaced apart with balloon, in case balloon institute's emission gases itself influence the representativeness of sampled point gas.The air sampling
The air inlet 12 of air inlet pipe is exposed in the sampled point air of low latitude, the lower end of the air sampling air inlet pipe 13 and is fixed on ground
22 air inlet of surge flask be connected, described 14 one end of drawstring is fixed on 11 lower end of balloon, and the other end is fastened on the ground
On fixture 15.Balloon 11 rises and the air inlet 12 of air sampling air inlet pipe rises to scheduled sampling point height with it, so
Drawstring 14 is fixed in ground fixture 15 afterwards, the air sample of low latitude sampled point can be acquired.
A string bag 16 is designed in 11 appearance of balloon, the drawstring 14 is fixed on the string bag 16, balloon 11 is placed in
In the string bag 16, it can prevent balloon 11 from undesirably falling off drawstring 14 in this way and fly in the air, can also prevent balloon 11 due to unbalance stress
It is pulled open.
Design has the graduation mark 17 of reflection length, 17 surface markers of graduation mark in the air sampling air inlet pipe 13
Have the scale with rice (m) for unit: 0,1,2......800...... can accurately grasp balloon 11 and air sampling in this way
The raised height of air inlet 12 of air inlet pipe.When the air inlet 12 of air sampling air inlet pipe is increased to low latitude sampling point height,
The stopping of drawstring 14 is unclasped and is fixed in ground fixture 15.
Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 are please referred to, liftable sampling system provided by the invention includes: to take out
Air pump 21, surge flask 22, air sampler 23, liftable air sampling admission gear.The tee tube of the surge flask 22
Upper two gas outlet is connected with the air inlet of the air inlet of the air sampler 23 and aspiration pump 21 respectively, and the liftable is empty
The air sampling air inlet pipe 13 in gas sampling admission gear is connected with the air inlet of the surge flask 22.The aspiration pump
21, surge flask 22, air sampler 23 are placed on the adjusting table top or tripod on ground, the air sampling air inlet pipe into
Port 12 is promoted in the air with the balloon 11, and the air inlet 12 of the air sampling air inlet pipe is raised to scheduled air sampling
Point height is fastened in the ground fixture 15 by the drawstring 14, to control the balloon 11 and the air sampling
The adjustable height of the air inlet 12 of air inlet pipe.
The ground fixture 15 is set as winding mechanism 33, and the regulating platform face on ground includes bottom plate 31, transverse slat 32, institute
State winding mechanism 33.The left side of the bottom plate 31 is fixed in the bottom of the aspiration pump 21, and the bottom of the surge flask 22 is fixed
In the middle part of the bottom plate 31, the right side of the bottom plate 31, the drawstring 14 1 are fixed in the bottom of the air sampler 23
End is fixed on 16 bottom end of the balloon 11 or the string bag, and the other end is set on the winding mechanism 33.
The winding mechanism 33 includes the first fixed plate 331, the second fixed plate 332, rotating bar 333, winding cylinder 334, draws
The rear side at the top of the transverse slat 32, institute are fixed in rope 14, turntable 335 and turning handle 336, the bottom of first fixed plate 331
State the second fixed plate 332 bottom be fixed on the transverse slat 32 top front side, one end of the rotating bar 333 rotates in institute
The side of the first fixed plate 331 is stated, the surface of the rotating bar 333, the drawstring 14 are fixed in the inside of the winding cylinder 334
It is wound in the surface of the winding cylinder 334, one end of the drawstring 14 is fixedly connected with the balloon 11 or the string bag 16.
The other end of the rotating bar 333 is through second fixed plate 332 and extends to second fixed plate 332
One end of the rotating bar 333 is fixed at side, the back side of the turntable 335, and described turn is fixed in one end of the turning handle 336
The surface of disk 335, the top of the transverse slat 32, which is fixed by the connecting rod, is connected with clamping mechanism 4.
The clamping mechanism 4 includes clamping frame 41, sliding shoe 42, kelly 43, pull rod 44, pull handle 45 and spring 46, described
The bottom of clamping frame 41 is fixed by the connecting rod in the top of the transverse slat 32, and the top and bottom of the sliding shoe 42 are slided respectively
It moves in the top and bottom of the inner wall of the clamping frame 41, the side of the sliding shoe 42 is fixed in one end of the kelly 43,
The other end of the kelly 43 sequentially passes through the clamping frame 41 and the turntable 335 and extends to the inside of the turntable 335.
The side of the sliding shoe 42 is fixed in one end of the pull rod 44, and the other end of the pull rod 44 runs through the card
Tight frame 41 and the outside for extending to the clamping frame 41, the other end of the pull rod 44, institute are fixed in the side of the pull handle 45
Spring 46 is stated to be set to the surface of the pull rod 44 and be located at the side of the side of sliding shoe 42 and the inner wall of the clamping frame 41
Between.
The inside of the turntable 335 offers the card slot 337 being used cooperatively with the kelly 43, the number of the card slot 337
Amount is multiple, and multiple card slots 337 are equally distributed.
The bottom of the transverse slat 32 is fixedly connected with inserted link 5.
A kind of method of liftable air sampling, comprising the following steps:
Step 1: inserted link 5 is inserted into ground, bottom plate 31 is placed on the ground；
Step 2: pulling pull rod 44 by pull handle 45, pull rod 44 drives sliding shoe 42 mobile, and sliding shoe 42 drives kelly 43
It is mobile, make kelly 43 far from turntable, balloon 11 rises the rising for driving air sampling air inlet pipe 13, by graduation mark 17 on ground
The dynamic change that 12 height of air inlet of air sampling air inlet pipe can be observed, until it rises to scheduled low latitude sampled point height
Degree；
Sliding shoe 42 is squeezed by the elastic force of spring 46 step 3: unclamping pull handle 45, sliding shoe 42 drives kelly 43 mobile,
It is inserted into one end of kelly 43 in turntable 335；
Step 4: aspiration pump 21 works, the gas on-site displacement surge flask 22 and air sampling tube of low latitude sampled point are utilized
Original gas in 13；Then aspiration pump 21 stops working, and starts air sampler 23, and first analog sampling regulates flow, then
It is operated by the ground air method of sampling, the gas of low latitude sampled point passes through the air inlet 12 of air sampling air inlet pipe, air sampling
Air inlet pipe 13, surge flask 22 suck in air sampler 23.
The work of liftable air sampling provided by the invention admission gear, low latitude sampling system and its method of sampling
Principle is as follows:
Inserted link 5 is inserted into ground, makes transverse slat 32 keep stablizing, bottom plate 31 is placed on the ground, pulls by pull handle 45
Pull rod 44, pull rod 44 drive sliding shoe 42 mobile, and sliding shoe 42 drives kelly 43 mobile, make kelly 43 far from turntable 335, balloon
11 rise, promoted air sampling air inlet pipe 13 rise, by graduation mark 17 ground observation air sampling air inlet pipe air inlet
12 height risen are unclamped pull handle 45 and are passed through until the air inlet 12 of air sampling air inlet pipe rises to low latitude sampling point height
The elastic force of spring 46 squeezes sliding shoe 42, and sliding shoe 42 drives kelly 43 mobile, one end of kelly 43 is made to be inserted into turntable 335
It is interior, prevent turntable 335 from rotating, aspiration pump 21 works, and the gas on-site for being pumped into low latitude sampled point is sufficiently displaced from surge flask 22 and sky
Gas samples original gas in air inlet pipe 13, and aspiration pump 21 stops working, and opens air sampler 23 and samples, the sampling of sucking low latitude
Point gas is collected in hollow body sampler 23 after air sampling air inlet 12, air sampling air inlet pipe 13, surge flask 22
In sampling pipe in.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent transformation made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant technical fields, similarly
It is included within the scope of the present invention.
Claims (10)
1. a kind of liftable air sampling admission gear, including balloon, air sampling air inlet pipe, drawstring, ground fixture, special
Sign is: the air inlet of the air sampling air inlet pipe is fixed below the balloon, and the air inlet is exposed to low latitude sampling
In point air, the air sampling air inlet pipe other end is connected with the surge flask air inlet for being fixed on ground, described drawstring one end
It is fixed on the balloon, the other end is fastened in the ground fixture.
2. liftable air sampling according to claim 1 admission gear, it is characterised in that: designed in the balloon exterior
One string bag, the drawstring are fixed on the string bag lower end, the balloon are placed in the string bag.
3. liftable air sampling according to claim 1 admission gear, it is characterised in that: in the air sampling air inlet
Design has the graduation mark for indicating length on pipe, described when the balloon drives the air inlet of the air sampling air inlet pipe to increase
When graduation mark mark has risen to sampling point height, the drawstring stopping lengthens, and is fixed in the ground fixture.
4. a kind of low latitude sampling system, including aspiration pump, surge flask, air sampler, as described in claim 1--3
Any one liftable air sampling admission gear, it is characterised in that: the surge flask by tee tube respectively with the air
Air sampling air inlet in the air inlet of sampler, the air inlet of the aspiration pump and liftable air sampling admission gear
Pipe lower end is connected, and the aspiration pump, surge flask, air sampler are placed on the adjusting table top on ground or on tripod, institute
The air inlet for stating air sampling air inlet pipe is promoted to scheduled low latitude air sampling point height with the balloon, passes through the drawstring
It fastens in the ground fixture, to control the adjustable height of the air inlet of the balloon and the air sampling air inlet pipe.
5. low latitude sampling system according to claim 4, it is characterised in that: the ground fixture is wrapping machine
Structure, the regulating platform face on ground include bottom plate, transverse slat, the winding mechanism, the aspiration pump, surge flask, air sampler
Bottom be fixed on the bottom plate, the winding mechanism is fixed on the top of transverse slat, and described drawstring one end is fixed on the gas
Ball or the string bag bottom end, the other end are set on the winding mechanism.
6. low latitude sampling system according to claim 5, which is characterized in that the winding mechanism includes first fixed
The cross is fixed in the bottom of plate, the second fixed plate, rotating bar, winding cylinder, drawstring, turntable and turning handle, first fixed plate
The front side at the top of the transverse slat is fixed in the rear side at the top of plate, the bottom of second fixed plate, and the one of the rotating bar
End rotates in the side of first fixed plate, and the surface of the rotating bar, the drawstring are fixed in the inside of the winding cylinder
It is wound in the surface of the winding cylinder, one end of the drawstring is fixedly connected with the balloon or the string bag.
7. low latitude sampling system according to claim 6, which is characterized in that the other end of the rotating bar runs through institute
It states the second fixed plate and extends to the side of second fixed plate, the one of the rotating bar is fixed at the back side of the turntable
End, one end of the turning handle is fixed on the surface of the turntable, is fixed by the connecting rod at the top of the transverse slat and is connected with clamping
Mechanism.
8. low latitude sampling system according to claim 7, which is characterized in that the clamping mechanism include clamping frame,
Sliding shoe, kelly, pull rod, pull handle and spring, the bottom of the clamping frame are fixed by the connecting rod in the top of the transverse slat, institute
State sliding shoe top and bottom slide on respectively the clamping frame inner wall top and bottom, one end of the kelly is fixed
In the side of the sliding shoe, the other end of the kelly sequentially passes through the clamping frame and the turntable and extends to described turn
The inside of disk.
9. low latitude sampling system according to claim 8, which is characterized in that one end of the pull rod is fixed on described
The other end of the side of sliding shoe, the pull rod runs through the clamping frame and extends to the outside of the clamping frame, the pull handle
Side be fixed on the other end of the pull rod, the spring be set to the surface of the pull rod and be located at the side of sliding shoe with
Between the side of the inner wall of the clamping frame, the inside of the turntable offers the card slot being used cooperatively with the kelly, described
The quantity of card slot is multiple, and multiple card slots are equally distributed, and the bottom of the transverse slat is fixedly connected with inserted link.
10. a kind of method of low latitude air sampling, which comprises the following steps:
Firstly, aspiration pump, surge flask, air sampler are placed on the adjusting table top or tripod on ground, loosen drawstring, allows
After balloon rises to scheduled sampling point height together with the air inlet of air sampling air inlet pipe, drawstring is fastened in ground fixture
On；
Secondly, air sampling air inlet pipe lower end and the air inlet of tee tube on surge flask are connected, and by threeway on surge flask
Two gas outlets of pipe are connected with the air inlet of the air inlet of air sampler and aspiration pump respectively by connecting pipe, carefully
Check each node connection status, it is ensured that surge flask and air sampling air inlet pipe, air sampler, closely coupled between aspiration pump；
Third step closes air sampler, opens aspiration pump, the live air of low latitude sampled point is drawn into surge flask, is set
Change original air in surge flask and air sampling air inlet pipe；
4th step shuts down aspiration pump, opens air sampler, and first analog sampling regulates sampling flow, finally according to usually
The operation of face air sampling method, acquires air sample.
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| CN113108838A (en) * | 2021-04-11 | 2021-07-13 | 李彦 | Air humidity changes detection device for urban environment |
| CN113777052A (en) * | 2021-09-07 | 2021-12-10 | 浙江中新电力工程建设有限公司 | Intelligent public data system based on carbon peak reaching and analysis method |
| CN113933461A (en) * | 2021-10-12 | 2022-01-14 | 刘意 | Multidirectional air monitoring method |
| CN114295776A (en) * | 2021-11-11 | 2022-04-08 | 楼振纲 | Air quality monitoring device |
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| CN208399195U (en) * | 2018-07-03 | 2019-01-18 | 无锡市疾病预防控制中心 | Portable operation occupational health sampler |
| CN108837448A (en) * | 2018-07-26 | 2018-11-20 | 安徽华翎羽毛制品有限公司 | A kind of easy-to-mount shuttlecock rack |
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