CN105928747B - A kind of Split type air particle matter collection device - Google Patents
A kind of Split type air particle matter collection device Download PDFInfo
- Publication number
- CN105928747B CN105928747B CN201610512863.6A CN201610512863A CN105928747B CN 105928747 B CN105928747 B CN 105928747B CN 201610512863 A CN201610512863 A CN 201610512863A CN 105928747 B CN105928747 B CN 105928747B
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- bottle
- receiving flask
- split type
- collection device
- receiving
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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
- G01N1/2273—Atmospheric sampling
-
- 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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of Split type air particle matter collection device, including sampling bottle, air inlet pipe（2）, exhaust tube（7）, aspiration pump（8）And exhaust pipe（9）, the sampling bottle is including accommodating bottle（1）With several receiving flasks（3）, wherein each receiving flask（3）Including openend（11）With sealing bottom cover（12）, filter membrane（4）, gas outlet（6）；The air inlet pipe（2）Connection accommodates bottle, any of which receiving flask（3）Openend（11）Connection, the exhaust tube（7）The detachably connected receiving flask in one end（3）Gas outlet（6）And the receiving bottle（1）Sealing bottom cover（12）With excess-col bottle（3）Openend（11）It is connected；The exhaust tube（7）The other end be sequentially connected aspiration pump, exhaust pipe（9）.The present invention can realize repeatedly using effect, and replacement easy to disassemble, simple in structure, be conveniently operated, and be convenient for carrying.
Description
Technical field
The present invention relates to a kind of Split type air particle matter collection devices, belong to the technical field of air detection equipment.
Background technology
Airborne suspended particulate refers to the particulate matter to suspend in air and waste gas, and acquisition suspended particulate substance sample is with special
Device.This dedicated unit is divided into airborne suspended particulate sampling apparatus and exhaust gas sampling apparatus.Wherein, air suspension composition granule
Sampling apparatus is divided into as big flow, middle flow and small flow three classes；Exhaust gas sampling apparatus is divided into as portable and fixed two class.
Though suspended particulate substance sampling apparatus type is more, divide by operation principle, only two classes：Short time sample mode
（It is generally hand-manipulated）With continuous, automatic, timing sampling mode.The gas containing suspended particulate substance is made to pass through with certain flow
The certain filter of pore size（Filter membrane or filter cylinder）, grain size be more than filter pore size particulate matter by Filters trap, grain size
Particulate matter less than filter pore size is then discharged by filter with gas.Select the aperture of filter, it is possible to collect
A certain size suspended particulate substance.
Therefore since the particulate matter diameter of acquisition is different, different collectors may be used., air sampler mainly has master
Two kinds of dynamic formula and passive type.Active sampler is divided into as two kinds of aerosol sample sampler and gaseous sample sampler, common
The samplers such as impact type, subjunctive mood and cyclone type be active air aerosol sample sampler, this kind of sampler is main
It is by the way that the filter membrane of different materials and aperture is selected to be collected sampling to the particulate matter in air, it can be when relatively short
The enough aerosol samples of interior acquisition.
Although in the prior art, using all kinds of air particle collectors, it has deficiency, such as application number：
201510625465.0 the applying date：In the file of 2015-09-28, it is proposed that a kind of " multichannel air granule sampler point
Device is flowed, including upper end cover and bottom end cover, the upper end cover top is provided with air flow inlet, and the bottom end cover includes cylinder and position
Flange below cylinder, the cylinder upper surface are evenly equipped with 6 conical sockets around central shaft, between the conical socket side wall
It intersecting at cylinder and is centrally formed shunting body, the shunting body is pinnacle structure, and the conical socket bottom is provided with air stream outlet,
Upper and lower end cover buckle closes to form splitter cavity.The gas sucked from same air flow inlet is divided into phase by part flow arrangement of the present invention
Same 6 parts, 6 gas circuits are symmetrical, and samples taken is substantially parallel, homodynamic in same air source, can acquire simultaneously
Multiple parallel samples.And there is not dead space volume without platform in entire splitter cavity, it effectively prevents air-flow and is directly cut by platform
Stay, so as to influence sample accuracy the problem of ".
And in an other application number：201310653576.3 the applying date：In the file of 2013-12-09, disclose and " relate to
And air detecting device, its air sampling rig and method, the air sampling rig include housing, the top and bottom point of housing
Stomata is not set, VOC sensors and particle sampling unit are set in housing, the VOC sensors have heating element.The sky
Gas detection device it include above-mentioned air sampling rig and the signal processing for calculating corresponding testing result according to sampled result
Device.The air sampling method is realized based on above-mentioned air sampling rig, makes VOC including applying heating voltage to VOC sensors
Sensor reaches detection temperature, and air is made to generate thermal convection current simultaneously to the heating of VOC sensors, makes surrounding air through the stomata
Into in the housing, so as to respectively by VOC sensors and particle sampling unit sampling.This sampling apparatus is small, cost
It is low, and can simultaneously sampled air particulate matter and VOC ".
It is complicated in structure although above-mentioned document makes improvement to air particle collector, do not have usually more
The function of secondary acquisition gaseous sample, and complicated, not Portable belt, and sampling bottle generally use integral structure so that filter
Film needs multiple dismounting and change, is unfavorable for being used for multiple times, causes sampling efficiency low, more unsuitable multi collect.
Invention content
The technical problems to be solved by the invention are to overcome the deficiencies of the prior art and provide a kind of Split type air particle
Matter collection device solves existing sampling bottle generally use integral structure so that filter membrane needs multiple dismounting and change, is unfavorable for more
The problem of secondary use causes sampling efficiency low, more unsuitable multi collect.
It is of the invention that above-mentioned technical problem is specifically solved using following technical scheme：
A kind of Split type air particle matter collection device, including sampling bottle, air inlet pipe, exhaust tube, aspiration pump and exhaust pipe,
The sampling bottle includes accommodating bottle and several receiving flasks, wherein each receiving flask includes openend and sealing bottom cover, filter membrane, goes out
Gas port, the filter membrane are fixed in receiving flask；Air inlet pipe connection accommodates one end of bottle, and accommodate the other end of bottle with wherein
The openend of any one receiving flask is detachably connected, the outlet of the detachably connected receiving flask in one end of the exhaust tube
The sealing bottom cover of mouth and the receiving bottle is connected with the openend of excess-col bottle；The other end connection pumping of the exhaust tube
The air inlet connection of pump, and the exhaust outlet of aspiration pump is connect with exhaust pipe.
Further, as a preferred technical solution of the present invention：The filter membrane is fixed on receiving flask by fixing piece
It is interior.
Further, as a preferred technical solution of the present invention：The fixing piece is screw.
Further, as a preferred technical solution of the present invention：The gas outlet is set in receiving flask and is located at
The bottom of filter membrane.
Further, as a preferred technical solution of the present invention：The exhaust tube is using flexible tracheae.
Further, as a preferred technical solution of the present invention：Further include the gas flow being arranged in air inlet pipe
Meter.
The present invention can generate following technique effect using above-mentioned technical proposal：
Split type air particle matter collection device provided by the invention, by making improvement to sampling bottle structure, by one
Body formula structure is improved to split structure, accommodates bottle using one and several receiving flasks carry out dust collection, wherein each receive
Collection bottle is considered as an independent collection receiving portion so that it can freely be connected with receiving bottle, and an entirety is formed in connection
Ground particulate matter acquisition cavity is evacuated intracavitary using aspiration pump, and dust is deposited in its surface by the dust being pumped into air through filter membrane,
It is used for subsequently taking out analysis, and after use, under can the receiving flask be dismantled from receiving bottle, change other collections
Bottle so that the receiving flask changed can be reused, and reached with this and repeatedly used, and the effect of replacement easy to disassemble, knot
Structure is simple, is conveniently operated, and is convenient for carrying.Existing sampling bottle generally use integral structure can effectively be solved so that filter membrane
Multiple dismounting and change is needed, is unfavorable for being used for multiple times, causes sampling efficiency low, the problem of more unsuitable multi collect.
Description of the drawings
Fig. 1 is the structure diagram of Split type air particle matter collection device of the present invention.
Fig. 2 is the structure diagram of receiving flask in the present invention.
Wherein Symbol explanation：1- accommodates bottle, 2- air inlet pipe, 3- receiving flasks, 4- filter membranes, 5- fixing pieces, 6- gas outlets, 7- pumpings
Tracheae, 8- aspiration pumps, 9- exhaust pipes, 10- gas flowmeters, 11- openends, 12- sealing bottom covers.
Specific embodiment
Embodiments of the present invention are described with reference to the accompanying drawings of the specification.
As shown in Figure 1, the present invention devises a kind of Split type air particle matter collection device, including sampling bottle, air inlet pipe
2nd, exhaust tube 7, aspiration pump 8 and exhaust pipe 9, the sampling bottle includes accommodating bottle 1 and several receiving flasks 3, wherein each collect
The structure of bottle 3 is as shown in Fig. 2, including openend 11 and sealing bottom cover 12, filter membrane 4, gas outlet 6, the filter membrane 4 is fixed on collection
In bottle 3；The connection of air inlet pipe 2 accommodates one end of bottle 1, and accommodates the other end of bottle 1 and the opening of any of which receiving flask 3
Hold 11 detachably connected, the gas outlet 6 of the detachably connected receiving flask 3 in one end of the exhaust tube 7 and receiving bottles
1 sealing bottom cover 12 is connected with the openend 11 of excess-col bottle 3；The air inlet of the other end connection aspiration pump 8 of the exhaust tube 7
Mouth connection, and the exhaust outlet of aspiration pump 8 is connect with exhaust pipe 9.Engagement thread may be used in connection wherein between receiving flask 3,
The openend 11 of the other end and any of which receiving flask 3 for accommodating bottle 1 can also use thread connecting mode, utilize screw thread side
Formula is easy to disassemble.
In the device, it is preferable that the filter membrane 4 is fixed on by fixing piece 5 in receiving flask 3, as shown in Fig. 2, described solid
Determining part 5 can be arranged on 3 inner wall of receiving flask, and to facilitate the fixation of filter membrane 4, and layer structure may be used in filter membrane 4, makes its tool
Standby certain hardness.And the fixing piece 5 is preferably screw, i.e., is directly fixed filter membrane 4 using screw, using simple
The realization that screw can be stablized is fixed.
Also, in the present apparatus, the gas outlet 6 can be preferably disposed in receiving flask 3 and be located at the bottom of filter membrane 4, such as
Shown in Fig. 2 so that gas outlet 6 will effectively can be discharged closer to sealing bottom cover 12 by the air after filter membrane 4,
Thus the range of 4 ingress of air of filter membrane is improved, convenient for discharging the air after dust suction.
Further, in a device, the gas flowmeter 10 being arranged in air inlet pipe 2 is further included, utilizes gas flowmeter
10 can detect the air mass flow of sucking, with the wind speed of suitable control aspiration pump 8.It is excellent on the exhaust tube 7 connected in aspiration pump 8
Selection of land, by the exhaust tube 7 using flexible tracheae, using flexible tracheae convenient for can arbitrary bleeding regulating pipe 7 length so that
It can preferably be suitable for different receiving flasks.
In the present embodiment, using 33 structures of receiving flask, but the present invention is not limited to this kind of mode, the receiving flasks of other quantity
3 is equally applicable.When carrying out dust collection, 1 receiving flask is fixed on accommodates 1 rear of bottle first, remaining receiving flask is successively
It is fixed on the rear of first receiving flask.After aspiration pump 8 starts air extracting function, air, air are sucked from outside by air inlet pipe 2
It is transported in first receiving flask 3 of connection receiving bottle 1, and the dust in air is directly remained on filter membrane through accommodating bottle 1, with
Air is discharged from gas outlet 6 afterwards；The air of discharge enters aspiration pump 8 through exhaust tube 7, is discharged by exhaust pipe 9.It is pumped into air
Dust is deposited in its surface by dust through filter membrane, is used for subsequently taking out analysis, and after use, it can be by the receiving flask
Under being dismantled from receiving bottle, other receiving flasks 1 are changed.And remaining 1 operation principle of receiving flask inserts exhaust tube 7 as above-mentioned
Behind upper gas outlet 6, intracavitary is evacuated using aspiration pump 8, dust is deposited in its surface by the dust being pumped into air through filter membrane 4,
And the receiving flask used for the first time can be connected to the receiving flask rear at this time, since the sealing bottom cover 12 of receiving flask is closed knot
Structure so that the air of suction cannot be entered in other receiving flasks so that each receiving flask can be independently operated, and
It can reuse, be reached with this and repeatedly used.
The present invention is improved to split structure by bottle integral structure is accommodated, using one accommodate bottle and excessively a receiving flask into
Row dust collection, wherein each receiving flask is considered as an independent collection receiving portion so that it can freely be connected with receiving bottle,
An integrally particulate matter acquisition cavity is formed in connection, can effectively realize repeatedly using effect, replacement easy to disassemble
Effect, it is simple in structure, be conveniently operated, and be convenient for carrying.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode, within the knowledge of a person skilled in the art, can also be under the premise of present inventive concept not be departed from
It makes a variety of changes.
Claims (6)
1. a kind of Split type air particle matter collection device, including sampling bottle, air inlet pipe（2）, exhaust tube（7）, aspiration pump（8）And
Exhaust pipe（9）, which is characterized in that the sampling bottle includes accommodating bottle（1）With several receiving flasks（3）, wherein each receiving flask
（3）Including openend（11）With sealing bottom cover（12）, filter membrane（4）, gas outlet（6）, the filter membrane（4）It is fixed on receiving flask（3）
It is interior；The air inlet pipe（2）Connection accommodates bottle（1）One end, and accommodate bottle（1）The other end and any of which receiving flask（3）
Openend（11）It is detachably connected, the exhaust tube（7）The detachably connected receiving flask in one end（3）Gas outlet
（6）And the receiving bottle（1）Sealing bottom cover（12）With excess-col bottle（3）Openend（11）It is connected；The exhaust tube
（7）The other end connection aspiration pump（8）Air inlet connection, and aspiration pump（8）Exhaust outlet and exhaust pipe（9）Connection.
2. Split type air particle matter collection device according to claim 1, it is characterised in that：The filter membrane（4）By solid
Determine part（5）It is fixed on receiving flask（3）It is interior.
3. Split type air particle matter collection device according to claim 2, it is characterised in that：The fixing piece（5）For spiral shell
Nail.
4. Split type air particle matter collection device according to claim 1, it is characterised in that：The gas outlet（6）Setting
In receiving flask（3）It is interior and positioned at filter membrane（4）Bottom.
5. Split type air particle matter collection device according to claim 1, it is characterised in that：The exhaust tube（7）Using
Flexible tracheae.
6. Split type air particle matter collection device according to claim 1, it is characterised in that：It further includes and is arranged on air inlet pipe
（2）On gas flowmeter（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610512863.6A CN105928747B (en) | 2016-07-04 | 2016-07-04 | A kind of Split type air particle matter collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610512863.6A CN105928747B (en) | 2016-07-04 | 2016-07-04 | A kind of Split type air particle matter collection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105928747A CN105928747A (en) | 2016-09-07 |
| CN105928747B true CN105928747B (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610512863.6A Expired - Fee Related CN105928747B (en) | 2016-07-04 | 2016-07-04 | A kind of Split type air particle matter collection device |
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| CN108680403B (en) * | 2018-06-21 | 2024-03-29 | 重庆交通大学 | Pressure-flow-type multistage submicron particle collector |
| CN108956216B (en) * | 2018-08-29 | 2020-11-17 | 嘉兴嘉卫检测科技有限公司 | Air particulate matter grading sampling device for environmental monitoring |
| CN109959537B (en) * | 2019-04-11 | 2020-06-23 | 中南大学 | Atmospheric particulates detection device with adjustable it is portable |
| CN112915680A (en) * | 2021-01-29 | 2021-06-08 | 上海海事大学 | Convenient granule burning thing collection device |
| CN113155535A (en) * | 2021-03-02 | 2021-07-23 | 中国人民解放军东部战区疾病预防控制中心 | Negative pressure sampler |
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Patent Citations (7)
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| CN2725883Y (en) * | 2004-08-11 | 2005-09-14 | 河南省核工业放射性核素检测中心 | Active air radioactive sampler |
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| CN105928747A (en) | 2016-09-07 |
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