CN106918476A - A kind of big flow ram for air sampling - Google Patents
A kind of big flow ram for air sampling Download PDFInfo
- Publication number
- CN106918476A CN106918476A CN201710267318.XA CN201710267318A CN106918476A CN 106918476 A CN106918476 A CN 106918476A CN 201710267318 A CN201710267318 A CN 201710267318A CN 106918476 A CN106918476 A CN 106918476A
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- CN
- China
- Prior art keywords
- sampling
- disk
- end cap
- ware
- screen tray
- Prior art date
- 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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Classifications
-
- 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
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2208—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with impactors
-
- 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 intended to provide a kind of big flow ram for air sampling of optimization design, including clashing into disk, end cap, sampling ware and sampling media, clash into disk and end cap is revolving part, stomata is provided with end cap, end cap is specifically divided into drive end bearing bracket and rear end cap again, drive end bearing bracket, rear end cap and shock disk are stacked and detachably connected successively, disk is at least provided with two and continuously stacks for shock, clash into and be provided with screen tray and screen tray ante-chamber on disk, sieve aperture and at least three sampling ware support columns are provided with screen tray, the height of sampling ware support column is not higher than screen tray ante-chamber, the sampling ware is arranged on sampling ware support column, the sampling media is arranged in sampling ware.Sampling ware is installed in the screen tray ante-chamber for clashing into disk by ware support column of sampling, collect the sampled targets of the sieve aperture that disk is clashed into by previous stage, the distance between sampling ware and sieve aperture are easy to control, it is convenient to which the characteristics design distance according to sampled targets, sampling ware also allows for installing.
Description
Technical field
The invention belongs to air sampling technical field, and in particular to a kind of impact sampler.
Background technology
In air sampling field, conventional is that a kind of impacting type is sampled, the gas outlet connection of air extractor and ram,
Air enters ram from the air inlet of ram, is arranged at every grade of sampling ware classification clashed into after disk and collects sampled targets.Mesh
Although the overall structure of preceding impact sampler is more fixed, still there is room for improvement in terms of many details.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of improved big flow ram for air sampling.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：One kind is used for air sampling
Big flow ram, including clash into disk, end cap, sampling ware and sampling media, clash into disk and end cap and be revolving part, on end cap
Stomata is provided with, end cap is specifically divided into drive end bearing bracket and rear end cap again, and drive end bearing bracket, rear end cap and shock disk are stacked and detachable successively
Ground connection, disk is at least provided with two and continuously stacks for shock, to clash into and be provided with screen tray and screen tray ante-chamber on disk, is set on screen tray
There are sieve aperture and at least three sampling ware support columns, the height of ware support column of sampling is not higher than screen tray ante-chamber, and the sampling ware is set
In on sampling ware support column, the sampling media is arranged in sampling ware.
Further, the shock disk of ram is 6, and the first order to the 6th grade is divided into from front to back, clashes into the sieve on disk
Bore dia reduces step by step, and the first order is clashed into disk and is not provided with ware support column of sampling, and laying sampling on the 6th grade of screen tray of shock disk is situated between
Matter, a removably aluminium ring is set in screen tray ante-chamber, and be pressed in sampling media on screen tray by aluminium ring.
Further, the periphery of the end cap of ram is provided with counterbore, and the outer ring for clashing into disk is provided with through hole, using light
Bar screw bolt and nut will clash into disk and end cap is fixed.
Further, buffer is installed on end cap.
Further, the sampling ware support column top for clashing into disk sets jagged, and sampling ware is supported by each sampling ware
Breach on post is in contact with sampling ware support column.
The present invention is advantageous in that, sampling ware is installed in the screen tray ante-chamber for clashing into disk by ware support column of sampling,
The sampled targets of the sieve aperture that disk is clashed into by previous stage are collected, the distance between sampling ware and sieve aperture are easy to control, it is convenient to
The characteristics design distance according to sampled targets, sampling ware also allows for installing.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is stereogram of the invention；
Fig. 2 is sectional view of the invention；
Fig. 3 is partial view of the invention；
In figure：1st, drive end bearing bracket；2nd, rear end cap；3rd, disk is clashed into；4th, sampling ware support column；5th, sampling ware；6th, buffer；7th, screen tray；
8th, sieve aperture；9th, screen tray ante-chamber.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention will be described in detail：
As depicted in figs. 1 and 2, the big flow ram for air sampling includes drive end bearing bracket 1, rear end cap 2, clashes into the and of disk 3
Buffer 6, buffer 6 is mounted on five on drive end bearing bracket 1 and rear end cap 2, can be reached when ram shakes slow
The effect of punching, plays the effect for maintaining ram stabilization.Clash into disk 3 and have 6, drive end bearing bracket 1,6 clash into disks 3, rear end cap 2 according to
Secondary to stack installation, clashing into the outer part provided circumferentially about of disk 3 has through hole, and counterbore is provided with drive end bearing bracket 1 and rear end cap 2, passes through
Polished rod screw bolt and nut is to be capable of achieving being detachably connected between drive end bearing bracket 1, rear end cap 2 and shock disk 3.
The structure that shock disk 3, sampling ware 5 and sampling ware support 4 is shown in Fig. 3.Clash into disk and include screen tray 7 and screen tray ante-chamber
9, sieve aperture 8 is provided with screen tray 7, screen tray ante-chamber 9 is located at the front portion of screen tray 7, and sampling ware support column 4 is arranged on screen tray 7.Sampling ware
At least provided with three, the top of sampling ware support column 4 sets jagged to support column 4, and sampling ware 5 is i.e. by the breach and sampling
Ware support column 4 is in contact, so that stabilization is inside ram.The depth of the height no more than screen tray ante-chamber 9 of sampling ware support column 4
Degree, in order to avoid sampling ware 5 and previous stage clash into disk 3 be in contact.
Every grade of sieve diameter clashed on disk 3 successively decreases successively, and the first order is not provided with sample ware, afterbody before clashing into disk 3
Ware of sampling also is not provided with after clashing into disk 3.Afterbody clashes into and an aluminium ring is set in the screen tray ante-chamber 9 of disk 3, and sampling media is direct
It is pressed on the screen tray for clashing into disk 3, for collecting all sampled targets by preposition shock disk 3.
When sampled targets are organic matter, the sampling media is agar medium, and afterbody can not set sampling media.
When using, clash into disk 3 from rear end cap 2 and afterbody and stacked to first order shock disk 3 successively, often stack one
During individual shock disk 3, sampling media will be put on sampling ware first on previous shock disk.Clash into disk 3 and stack completion one by one
Afterwards, then by drive end bearing bracket 1 it is stacked on shock disk, recycles polished rod screw bolt and nut to enter drive end bearing bracket 1, rear end cap 2 and shock disk 3
Row is fixed.After the air inlet pipe of air extractor is connected with the stomata of ram rear end cap 2, air extractor is started working, and gas is from hitting
Hit at the stomata of device drive end bearing bracket 1 and enter in ram.After sieve aperture 8 of the gas on by the screen tray 7 for clashing into disk 3, sampling is bumped against
Change direction after on ware 5, to surrounding loss, and next stage shock disk is flowed to by the space between sampling ware 5 and screen tray ante-chamber 9.
At gas and changing direction, the less sampled targets of quality can change direction with air-flow, and the larger target of quality is due to inertia
The reason for and fall sampling ware 5 in sampling media on.Because the diameter of sieve aperture 8 on every grade of shock disk 3 is gradually reduced, and it is evacuated
Device be in steady operation, so total gas flow is constant, so, with the reduction of the diameter of sieve aperture 8, the stream of gas
Speed can increase, so as to the quality of the sampled targets on sampling media that cause to fall due to effect of inertia can also reduce, so that real
Cascade sampling is showed.
It is emphasized that：The above is only presently preferred embodiments of the present invention, not make any formal to the present invention
Limitation, every any simple modification, equivalent variations and modification made to above example according to technical spirit of the invention,
Still fall within the range of technical solution of the present invention.
Claims (5)
1. a kind of big flow ram for air sampling, it is characterised in that：Including clashing into disk, end cap, sampling ware and sampling
Medium, clashes into disk and end cap is revolving part, and stomata is provided with end cap, and end cap is specifically divided into drive end bearing bracket and rear end cap again, preceding
End cap, rear end cap and shock disk are stacked and detachably connected successively, and disk is at least provided with two and continuously stacks for shock, clashes into
Screen tray and screen tray ante-chamber are provided with disk, sieve aperture and at least three sampling ware support columns, ware support column of sampling are provided with screen tray
Height be not higher than screen tray ante-chamber, the sampling ware is arranged on sampling ware support column, and the sampling media is arranged at sampling ware
It is interior.
2. the big flow ram for air sampling according to claim 1, it is characterised in that：The shock disk is 6
It is individual, the first order to the 6th grade is divided into from front to back, the sieve diameter clashed on disk reduces step by step, and the first order is clashed into disk and is not provided with adopting
Sample ware support column, sampling media is laid on the 6th grade of screen tray of shock disk, and removably an aluminium ring, aluminium ring is set in screen tray ante-chamber
Sampling media is pressed on screen tray.
3. the big flow ram for air sampling according to claim 1, it is characterised in that：The periphery of the end cap
Counterbore is provided with, the outer ring of the shock disk is provided with through hole, disk will be clashed into using polished rod screw bolt and nut and end cap is fixed.
4. the big flow ram for air sampling according to claim 1, it is characterised in that：Installed on the end cap
There is buffer.
5. the big flow ram for air sampling according to claim 1, it is characterised in that：The sampling ware support
Column top sets jagged, and the sampling ware is in contact by the breach on each sampling ware support column with sampling ware support column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267318.XA CN106918476A (en) | 2017-04-21 | 2017-04-21 | A kind of big flow ram for air sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267318.XA CN106918476A (en) | 2017-04-21 | 2017-04-21 | A kind of big flow ram for air sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106918476A true CN106918476A (en) | 2017-07-04 |
Family
ID=59567665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710267318.XA Withdrawn CN106918476A (en) | 2017-04-21 | 2017-04-21 | A kind of big flow ram for air sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106918476A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018655A (en) * | 2021-09-26 | 2022-02-08 | 苏州尚科洁净技术有限公司 | Fast disassembling structure of impactor |
| CN115561032A (en) * | 2022-10-17 | 2023-01-03 | 天津市疾病预防控制中心 | Air collector for simulating multi-air-pressure sampling environment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640140A (en) * | 1983-12-23 | 1987-02-03 | Commissariat A L'energie Atomique | Aerosol sampler with cascade impaction and uniform deposition |
| CN2301722Y (en) * | 1997-03-24 | 1998-12-23 | 戴景林 | Three-stage impact multifunctional air sampler |
| US6786105B1 (en) * | 2001-10-09 | 2004-09-07 | University Of Southern California | Personal particle monitor |
| US20070269849A1 (en) * | 2004-10-06 | 2007-11-22 | Pierre Bridenne | Air Sampling Method, Device and System for Microbiological Analysis |
| CN201016880Y (en) * | 2007-03-06 | 2008-02-06 | 兰勇 | Multi-stage air microorganism sampler |
| CN204999906U (en) * | 2015-09-16 | 2016-01-27 | 杭州亿捷科技有限公司 | Air microorganism sampler |
| CN106482988A (en) * | 2016-12-13 | 2017-03-08 | 北京大学 | A kind of Portable high-flow air sampler |
-
2017
- 2017-04-21 CN CN201710267318.XA patent/CN106918476A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640140A (en) * | 1983-12-23 | 1987-02-03 | Commissariat A L'energie Atomique | Aerosol sampler with cascade impaction and uniform deposition |
| CN2301722Y (en) * | 1997-03-24 | 1998-12-23 | 戴景林 | Three-stage impact multifunctional air sampler |
| US6786105B1 (en) * | 2001-10-09 | 2004-09-07 | University Of Southern California | Personal particle monitor |
| US20070269849A1 (en) * | 2004-10-06 | 2007-11-22 | Pierre Bridenne | Air Sampling Method, Device and System for Microbiological Analysis |
| CN201016880Y (en) * | 2007-03-06 | 2008-02-06 | 兰勇 | Multi-stage air microorganism sampler |
| CN204999906U (en) * | 2015-09-16 | 2016-01-27 | 杭州亿捷科技有限公司 | Air microorganism sampler |
| CN106482988A (en) * | 2016-12-13 | 2017-03-08 | 北京大学 | A kind of Portable high-flow air sampler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018655A (en) * | 2021-09-26 | 2022-02-08 | 苏州尚科洁净技术有限公司 | Fast disassembling structure of impactor |
| CN114018655B (en) * | 2021-09-26 | 2023-12-22 | 苏州尚科洁净技术有限公司 | Quick detaching structure of impactor |
| CN115561032A (en) * | 2022-10-17 | 2023-01-03 | 天津市疾病预防控制中心 | Air collector for simulating multi-air-pressure sampling environment |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170704 |
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| WW01 | Invention patent application withdrawn after publication |