CN108613847A - A kind of air sampler increasing acquisition flow - Google Patents
A kind of air sampler increasing acquisition flow Download PDFInfo
- Publication number
- CN108613847A CN108613847A CN201611133400.5A CN201611133400A CN108613847A CN 108613847 A CN108613847 A CN 108613847A CN 201611133400 A CN201611133400 A CN 201611133400A CN 108613847 A CN108613847 A CN 108613847A
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- CN
- China
- Prior art keywords
- gas
- distributing pipe
- collecting tube
- bypass line
- air pump
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- 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
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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)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention is a kind of air sampler increasing acquisition flow, include mainly filter membrane, gas-distributing pipe, trapping cylinder, gas collecting tube, flowmeter, air pump, sample gas is from top to bottom successively through filter membrane, gas-distributing pipe, trapping cylinder, gas collecting tube, flowmeter, it finally exports and is discharged from air pump, be tightly connected between each element.Compared with the normal atmospheric sampler of only single trapping cylinder, air sampler proposed by the present invention uses the structure of n trap parallel connection, and in the case that air pump power is the same, the specified sampling flow of sampler improves about n times；Or in acquisition flow velocity identical as traditional air sampler setting, effectively reduces air pump load, extends air pump service life.
Description
Technical field
The invention belongs to Analysis on Environment Contamination and monitoring field, relate generally to the sampling analysis of target contaminant in air.
Background technology
In order to control and reduce air pollution emission, it is often necessary to the air near stationary source into every trade sampling and
Monitoring.In sampling process, conventional air sampler is limited frequently with single-pipeline trap, limited pipe section product
Air pump drives the effect of acquisition gas, and become whole device uses bottleneck.Therefore the present invention proposes a kind of new air and adopts
Sampling device, i.e., a kind of air sampler increasing acquisition flow, sampling operation band is given to solve normal atmospheric sampling apparatus structure
The a series of problems come.
Invention content
The air sampler of the present invention for increasing acquisition flow is mainly filled by filter membrane, gas-distributing pipe, trapping cylinder, sealing
It sets, gas collecting tube, flowmeter, air pump composition；
One open end of gas-distributing pipe is fixed with filter membrane, and another open end is divided into n bypass line, and one open end of gas collecting tube is divided into
N bypass line, another open end are tightly connected with flowmeter；N bypass line of gas-distributing pipe and n bypass duct of gas collecting tube
Road passes through n trapping cylinder connection, i.e. a bypass line of gas-distributing pipe a bypass line and gas collecting tube point correspondingly
Not with a trapping two end airtight connection of cylinder, trapping cylinder inside is equipped with trapping object, and the branch being divided into according to gas-distributing pipe and gas collecting tube
Road pipeline number is divided into n and column distribution；N is the integer more than or equal to 2；The flowmeter other end is tightly connected with air pump.
The bypass line of the bypass line of gas-distributing pipe and trapping cylinder, trapping cylinder and gas collecting tube is compressed by sealing device close
Envelope.
Gas-distributing pipe, gas collecting tube, trapping cylinder are inner wall smooth part can be respectively embedded into neck bush according to different sample requirements,
Material is glass or metal material.
Filter membrane is sealingly fastened in one open end of gas-distributing pipe, and the bypass line that the gas-distributing pipe other end is separated into passes through with trapping cylinder
Sealing device, which compresses, to be tightly connected, and trapping cylinder is compressed by sealing device with gas collecting tube and is tightly connected, and gas collecting tube is close with flowmeter
Envelope connection, flowmeter are tightly connected with air pump.Sample gas is from top to bottom successively through filter membrane, gas-distributing pipe, trapping cylinder, gas collection
Pipe, flowmeter are finally exported from air pump and are discharged.
The beneficial effects of the invention are as follows：Compared with air sampler, air sampler proposed by the present invention is using n trapping
The structure of device parallel connection, in the case that air pump power is the same, the specified sampling flow of sampler improves about n times；Or big with tradition
When gas sampling sets identical acquisition flow velocity, effectively reduces air pump load, extends air pump service life.
Description of the drawings
Fig. 1 is the schematic diagram that a kind of increase of the present invention acquires the air sampler primary structure of flow.Wherein, (1) is
Filter membrane, (2) are gas-distributing pipe, (3) are trapping cylinder, (4) are sealing device, (5) are gas collecting tube, (6) are flowmeter, (7) are air pump.
Specific implementation mode
The embodiment of the present invention is described below in conjunction with the accompanying drawings.
When in use, filter membrane 1 is sealingly fastened in 2 one end of gas-distributing pipe to air sampler of the present invention, and gas-distributing pipe 2 is another
End is compressed by sealing device 4 with trapping cylinder 3 and is tightly connected, and trapping cylinder 3 compresses sealing by sealing device 4 with gas collecting tube 5 and connects
It connects, gas collecting tube 5 is tightly connected with flowmeter 6, and flowmeter 6 is tightly connected with air pump 7.Sample gas is from top to bottom successively through filtering
Film 1, gas-distributing pipe 2, trapping cylinder 3, gas collecting tube 5, flowmeter 6, finally export from air pump 7 and are discharged.
Claims (5)
1. a kind of air sampler increasing acquisition flow, which is characterized in that mainly by filter membrane (1), gas-distributing pipe (2), trapping cylinder
(3), gas collecting tube (5), flowmeter (6), air pump (7) composition；
(2) one open end of gas-distributing pipe is fixed with filter membrane, and another open end is divided into n bypass line, (5) one open end of gas collecting tube point
At n bypass line, another open end is tightly connected with flowmeter (6)；N bypass line of gas-distributing pipe (2) and gas collecting tube (5)
N bypass line pass through n trapping cylinder (3) correspondingly and be connected to, i.e. a bypass line and gas collecting tube for gas-distributing pipe (2)
(5) for a bypass line respectively with trapping (3) two end airtight connection of cylinder, trapping cylinder (3) is internal to be equipped with trapping object, and root
The bypass duct way being divided into according to gas-distributing pipe (2) and gas collecting tube (5) is divided into n and column distribution；N is the integer more than or equal to 2；Flow
(6) other end is counted to be tightly connected with air pump (7).
2. air sampler as described in claim 1, which is characterized in that the bypass line and trapping cylinder (3) of gas-distributing pipe (2),
It traps cylinder (3) and the bypass line of gas collecting tube (5) compresses sealing by sealing device (4).
3. air sampler as described in claim 1, which is characterized in that gas-distributing pipe (2), gas collecting tube (5), trapping cylinder (3) are
Inner wall smooth part can be respectively embedded into neck bush according to different sample requirements, and material is glass or metal material.
4. air sampler as described in claim 1, which is characterized in that filter membrane (1) is sealingly fastened in the opening of gas-distributing pipe (2) one
End, the bypass line that gas-distributing pipe (2) other end is separated into are compressed by sealing device (4) with trapping cylinder (3) and are tightly connected, trapping
Cylinder (3) is compressed by sealing device (4) with gas collecting tube (5) and is tightly connected, and gas collecting tube (5) is tightly connected with flowmeter (6), flow
(6) are counted to be tightly connected with air pump (7)；Sample gas is from top to bottom successively through filter membrane (1), gas-distributing pipe (2), trapping cylinder (3), collection
Tracheae (5), flowmeter (6) are finally exported from air pump (7) and are discharged.
5. air sampler as described in claim 1, which is characterized in that sealing device (4) is that flange or two wait for connecting line
Annular projection that interface is respectively set and cyclic annular pressure ring corresponding with protrusion or clinching or screw thread compressing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133400.5A CN108613847A (en) | 2016-12-10 | 2016-12-10 | A kind of air sampler increasing acquisition flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133400.5A CN108613847A (en) | 2016-12-10 | 2016-12-10 | A kind of air sampler increasing acquisition flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108613847A true CN108613847A (en) | 2018-10-02 |
Family
ID=63657065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611133400.5A Pending CN108613847A (en) | 2016-12-10 | 2016-12-10 | A kind of air sampler increasing acquisition flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108613847A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5222389A (en) * | 1990-04-02 | 1993-06-29 | Gaztech International Corporation | Multi-channel gas sample chamber |
| CN1808095A (en) * | 2005-01-21 | 2006-07-26 | 清华大学 | Multi-channel PM2.5Particulate matter sampler |
| CN201583435U (en) * | 2009-12-23 | 2010-09-15 | 中国科学院大连化学物理研究所 | PM10 particle impact type single-stage sampler |
| CN101832888A (en) * | 2010-05-24 | 2010-09-15 | 上海舜宇恒平科学仪器有限公司 | Automatic multi-path persistent gas-supply optional sampling device |
| CN201926576U (en) * | 2010-09-21 | 2011-08-10 | 修光伟 | Constant-temperature multi-way air sampler |
| CN103913355A (en) * | 2014-04-05 | 2014-07-09 | 青岛共好检测技术有限公司 | Sampler for multi-channel gases and particulate matters and using method of sampler |
-
2016
- 2016-12-10 CN CN201611133400.5A patent/CN108613847A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5222389A (en) * | 1990-04-02 | 1993-06-29 | Gaztech International Corporation | Multi-channel gas sample chamber |
| CN1808095A (en) * | 2005-01-21 | 2006-07-26 | 清华大学 | Multi-channel PM2.5Particulate matter sampler |
| CN201583435U (en) * | 2009-12-23 | 2010-09-15 | 中国科学院大连化学物理研究所 | PM10 particle impact type single-stage sampler |
| CN101832888A (en) * | 2010-05-24 | 2010-09-15 | 上海舜宇恒平科学仪器有限公司 | Automatic multi-path persistent gas-supply optional sampling device |
| CN201926576U (en) * | 2010-09-21 | 2011-08-10 | 修光伟 | Constant-temperature multi-way air sampler |
| CN103913355A (en) * | 2014-04-05 | 2014-07-09 | 青岛共好检测技术有限公司 | Sampler for multi-channel gases and particulate matters and using method of sampler |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181002 |