CN108593368A - A kind of dust sampler Automatic change film device - Google Patents
A kind of dust sampler Automatic change film device Download PDFInfo
- Publication number
- CN108593368A CN108593368A CN201810412226.0A CN201810412226A CN108593368A CN 108593368 A CN108593368 A CN 108593368A CN 201810412226 A CN201810412226 A CN 201810412226A CN 108593368 A CN108593368 A CN 108593368A
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- CN
- China
- Prior art keywords
- rotating disk
- dust
- elastic link
- change film
- fiter membrance
- 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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- 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
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- 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
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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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 relates to a kind of dust sampler Automatic change film devices, belong to technical field of environment protection equipment.When dust sampler of the present invention needs to change film after, rotary shaft drives rotating disk rotation, old fiter membrance cylinder is fixed on by fixed ring and elastic link on dust passage, and elastic link is located at the recess in rotating disk, when rotation disc spins, elastic link is lifted by cam, fiter membrance cylinder is deviate from from dust passage, postioning abutment makes elastic link that rotating disk be followed to rotate, after rotating disk rotates 90 °, new fiter membrance cylinder reaches above dust passage, sensing device senses that fiter membrance cylinder pop-up activity plate washer blocking fiter membrance cylinder continues to move, elastic link stop motion, rotating disk continues to rotate, elastic link is fallen into rotating disk groove, new fiter membrance cylinder is fallen into dust passage, to complete to change film operation.Apparatus of the present invention are simple in structure, and easy to operate, can store four fiter membrance cylinders simultaneously in cover replacing device, and it is fast to change film speed, and accuracy is high.
Description
Technical field
The present invention relates to a kind of dust sampler Automatic change film devices, belong to technical field of environment protection equipment.
Background technology
On the one hand Workplace dust in air concentration height can cause staff and safety in production very big harm
The health of personnel can be adversely affected；On the other hand, dust concentration is excessively high also has the possibility that set off an explosion.Therefore
We need to monitor Workplace dust in air concentration in real time.Carrying out dust concentration monitoring using dust sampler is
A kind of simple and effective method.
There are many instruments that kind carries out dust concentration monitoring at present in China, according to the difference of working environment and job requirement,
It can select most suitable instrument.Due to the difference of monitoring principle, corresponding instrument is also multifarious, can generally speaking be divided
It is three kinds：Dust sampler, sensor of dust concentration and dust gauge.Dust sampler compares with volume in these three instruments
The features such as small, easy to carry, data collection is accurate, thus be current Workplace carry out dust concentration monitor in real time it is most common
Instrument.It is not a simple job that we carry out sampling using dust sampler, this is because the data that we acquire must
It must be true, larger error should not occur, otherwise cannot really reflect dust concentration in workplace air, therefore
Carrying out the work of dust sampling must be carried out by specially trained operating personnel.Even profession staff into
Also it inevitably will appear some mistakes when row operation, main problem has filter membrane to be contaminated, filter membrane is not destaticed before weighing, filtered
Film is not dried before weighing, samples and press from both sides installation question etc..It can be seen that can filter membrane correctly be installed and ensure to sample
Afterwards the dust on filter membrane do not lose be influence dust sampler sampling whether successful key factor.
Conduction can weaken after filter membrane work a period of time of dust sampler, influence measurement result and need to replace in time.
Currently used mode is to change film manually, and during changing film, any neglectful action of operating personnel can all cause to monitor
As a result inaccuracy cannot really reflect the variation of Workplace dust in air concentration.It can be seen that replacing filter membrane becomes shadow
An important factor for ringing sampled result.In order to improve monitoring means, the true variation for reflecting Workplace dust in air concentration is simultaneously
Authentic data is provided, a set of Automatic change film mechanism of major design of the present invention replaces manually replacing filter membrane, not only solves in this way
Man's activity causes the problem of sampled result inaccuracy and has saved to change the film time so that sampling operation is more efficiently, accurately.
The dust sampler with Automatic change film device used both at home and abroad at present mainly has WAY-1 type Automatic change films program-controlled
Dust sampler, six station automatic cycle dust samplers of TSP.The characteristics of these dust sampler Automatic change film devices, is as follows：
The cover replacing device of the program-controlled dust sampler of WAY-1 type Automatic change films is mainly by bellows spring, grain size cutter, positioning gear and tooth
The compositions such as item.It selects reversible electric machine to drive, and transmission gear is housed on motor shaft, and by transmission gear engagement push plate side
Rack slided on intermediate plate filter membrane be pushed into operating position, filter membrane is released again after sampling, film is changed in completion.It is this
The advantages of device is that mechanism is simple, it is rapid to change film.The disadvantage is that the both sides of push plate worked by the way of rack and pinion engagement it is easy
It causes the work of both sides motor asynchronous, causes to change having some setbacks for membrane process；Since operating position lacks positioning device, filter membrane exists
It can not accurately be positioned during replacement.Therefore the sampler of the type may be only available for the not high occasion of required precision.
The cover replacing device of six station automatic cycle dust samplers of TSP mainly by pivoted arm, filter membrane component, pivoted arm lifting and
The compositions such as turn device.The dust sampler of this type can acquire two kinds of pollutants of PM2.5 and PM10 simultaneously, can be simultaneously
It realizes the replacement of filter membrane and weighs.The rotation of pivoted arm drives a pair of of gear pair to realize by stepper motor when work.The liter of pivoted arm
Drop control is by controlling the meshing state of gear and pulling the displacement of driven gear or more by cam-and- and spring mechanism
To realize.The advantages of device, is worked using gear engagement system, which changes film reliable operation, accurate positioning.Disadvantage
Be pivoted arm rotation and lifting cause cover replacing device size it is larger, complicated, manufacturing cost is higher, and the price of instrument is high
It is expensive.The dust measuring work in China is started late, and is just started until after liberation.With the progress of China's science and technology, the dust measuring in China works
Quick development is obtained in the nearest more than ten years, also there are many kinds for the type of dust sampler.Such as：Nanjing electronic equipment has
The intelligent constant flow pattern dust sampler of limit company production, the protected against explosion dust sampling of Co., Ltd of China National Nuclear Corporation production
Device, the intelligent dust sampler etc. of Beijing strong wind Electronics Co., Ltd. production.These samplers occupy major part at home
Market, working performance also receives the approval of client.
Invention content
Present invention mainly solves the technical issues of：Filter membrane, or energy Automatic change film cannot be replaced automatically for existing instrument,
But it is complicated, the problem of not being acceptable to the market, the present invention provides a kind of dust sampler Automatic change film devices.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention：
A kind of dust sampler Automatic change film device, including dust sampler framework, sensing device and cover replacing device, it is described
Sensing device is arranged inside dust sampler framework, offers dust passage in dust sampler framework, inside sensing device
It is provided with flapper, is cover replacing device below sensing device, the cover replacing device includes rotating disk, and rotating disk passes through rotation
Axis is fixed in dust sampler framework, and cam is provided in rotating disk, limited block is provided on cam, rotary shaft connects simultaneously
Elastic link is connect, elastic link is connected and fixed ring, and baffle is provided on the outside of fixed ring, and fixed ring fixes fiter membrance cylinder.
A kind of application process of dust sampler Automatic change film device is：When dust sampler needs to change film after, rotation
Shaft drives rotating disk rotation, and old fiter membrance cylinder is fixed on by fixed ring and elastic link on dust passage, and elastic link
Recess in rotating disk, when rotation disc spins, elastic link is lifted by cam, and fiter membrance cylinder is deviate from from dust passage,
Postioning abutment makes elastic link that rotating disk be followed to rotate, and after rotating disk rotates 90 °, new fiter membrance cylinder reaches on dust passage
Side, sensing device sense that fiter membrance cylinder pop-up activity plate washer blocking fiter membrance cylinder continues to move, elastic link stop motion, rotating disk
Continue to rotate, elastic link is fallen into rotating disk groove, and new fiter membrance cylinder is fallen into dust passage, to complete to change film operation.
The elastic link is made of the preferable steel of elasticity.
The fixed ring and elastic link is provided with four groups.
The cam section is in a rectangular trapezoid.
The beneficial effects of the invention are as follows：
（1）Devised in the present invention it is a kind of can automatically realize that dust sampler changes the device of film, do not need operating personnel progress
Film is changed manually, reduces the labor intensity of operating personnel, protects the physical and mental health of operating personnel, while effectively increasing dust
Sampling Machine changes film rate, improves the working efficiency of dust sampling machine.
Include mainly rotating disk in the present invention, cam, sensing device, filter membrane tube fixing device etc., apparatus structure is simple, and
It is easy to operate, four fiter membrance cylinders can be stored simultaneously in cover replacing device, it is fast to change film speed, and accuracy is high.
Apparatus of the present invention building block is less, and apparatus structure is simple, of low cost compared to existing cover replacing device, is applicable in
In most of dust sampler.
Description of the drawings
Fig. 1 is the organigram of dust sampler Automatic change film device of the present invention.
Fig. 2 is the organigram of cover replacing device in dust sampler Automatic change film device of the present invention.
Fig. 3 is the organigram of rotating disk in dust sampler Automatic change film device of the present invention.
Wherein, 1, dust sampler framework；2, sensing device；3, flapper；4, baffle；5, fiter membrance cylinder；6, dust is logical
Road；7, fixed ring；8, elastic link；9, rotating disk；10, rotary shaft；11, limited block；12, cam.
Specific implementation mode
A kind of dust sampler Automatic change film device, including dust sampler framework 1, sensing device 2 and cover replacing device,
The sensing device 2 is arranged inside dust sampler framework 1, and dust passage 6 is offered in dust sampler framework 1, feels
Device 2 is answered to be internally provided with flapper 3,2 lower section of sensing device is cover replacing device, and the cover replacing device includes rotating disk 9,
Rotating disk 9 is fixed on by rotary shaft 10 in dust sampler framework 1, and cam 12 is provided in rotating disk 9, is arranged on cam 12
There are limited block 11, rotary shaft 10 to connect elastic link 8 simultaneously, elastic link 8 is connected and fixed ring 7, and 7 outside of fixed ring is provided with
Baffle 4, fixed ring 7 fix fiter membrance cylinder 5.A kind of application process of dust sampler Automatic change film device is：Dust sampler makes
When needing to change film after, rotary shaft 10 drives rotating disk 9 to rotate, and old fiter membrance cylinder 5 is fixed by fixed ring 7 and elastic link 8
On dust passage 6, and elastic link 8 is located at the recess in rotating disk 9, and when rotating disk 9 rotates, cam 12 is by elastic link
8 liftings, fiter membrance cylinder 5 are deviate from from dust passage 6, and postioning abutment 11 makes elastic link 8 that rotating disk 9 be followed to rotate, and waits for rotating disk 9
After 90 ° of rotation, new fiter membrance cylinder reaches 6 top of dust passage, and sensing device 2 senses that fiter membrance cylinder pop-up activity plate washer 3 stops
Fiter membrance cylinder continues to move, and 8 stop motion of elastic link, rotating disk 9 continues to rotate, and elastic link 8 is fallen into 9 groove of rotating disk,
New fiter membrance cylinder is fallen into dust passage 6, to complete to change film operation.The elastic link 8 is using the preferable steel of elasticity
It is made.The fixed ring 7 and elastic link 8 is provided with four groups.12 section of cam is in a rectangular trapezoid.
Claims (5)
1. a kind of dust sampler Automatic change film device, including dust sampler framework（1）, sensing device（2）And change film dress
It sets, the sensing device（2）It is arranged in dust sampler framework（1）Inside, dust sampler framework（1）On offer dust
Channel（6）, sensing device（2）It is internally provided with flapper（3）, sensing device（2）Lower section is cover replacing device, and described changes film
Device includes rotating disk（9）, rotating disk（9）Pass through rotary shaft（10）It is fixed on dust sampler framework（1）On, rotating disk（9）
On be provided with cam（12）, cam（12）On be provided with limited block（11）, rotary shaft（10）Connect elastic link simultaneously（8）,
Elastic link（8）It is connected and fixed ring（7）, fixed ring（7）Outside is provided with baffle（4）, fixed ring（7）Fixed fiter membrance cylinder（5）.
2. a kind of application process of dust sampler Automatic change film device according to claim 1 is：Dust sampler makes
When needing to change film after, rotary shaft（10）Drive rotating disk（9）Rotation, old fiter membrance cylinder（5）Pass through fixed ring（7）Even with elasticity
Bar（8）It is fixed on dust passage（6）On, and elastic link（8）Positioned at rotating disk（9）On recess, work as rotating disk（9）Rotation
Turn, cam（12）By elastic link（8）Lifting, fiter membrance cylinder（5）From dust passage（6）Middle abjection, postioning abutment（11）Make elasticity
Connecting rod（8）Follow rotating disk（9）Rotation, waits for rotating disk（9）After 90 ° of rotation, new fiter membrance cylinder reaches dust passage（6）Top,
Sensing device（2）Sense fiter membrance cylinder pop-up activity plate washer（3）Blocking fiter membrance cylinder continues to move, elastic link（8）Stop motion,
Rotating disk（9）Continue to rotate, elastic link（8）Fall into rotating disk（9）In groove, new fiter membrance cylinder falls into dust passage（6）In,
To complete to change film operation.
3. a kind of dust sampler Automatic change film device according to claim 1, it is characterised in that：The elastic link
（8）It is made of elastic preferable steel.
4. a kind of dust sampler Automatic change film device according to claim 1, it is characterised in that：The fixed ring
（7）And elastic link（8）It is provided with four groups.
5. a kind of dust sampler Automatic change film device according to claim 1, it is characterised in that：The cam（12）
Section is in a rectangular trapezoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412226.0A CN108593368A (en) | 2018-05-03 | 2018-05-03 | A kind of dust sampler Automatic change film device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412226.0A CN108593368A (en) | 2018-05-03 | 2018-05-03 | A kind of dust sampler Automatic change film device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108593368A true CN108593368A (en) | 2018-09-28 |
Family
ID=63620611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810412226.0A Withdrawn CN108593368A (en) | 2018-05-03 | 2018-05-03 | A kind of dust sampler Automatic change film device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108593368A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160842A (en) * | 2019-06-14 | 2019-08-23 | 重庆渝佳环境影响评价有限公司 | A kind of atmospheric sampling detector |
| CN114955169A (en) * | 2022-05-24 | 2022-08-30 | 科赛乐科技(上海)有限公司 | Filling type multi-dust sampling box and dust monitoring equipment using same |
-
2018
- 2018-05-03 CN CN201810412226.0A patent/CN108593368A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160842A (en) * | 2019-06-14 | 2019-08-23 | 重庆渝佳环境影响评价有限公司 | A kind of atmospheric sampling detector |
| CN110160842B (en) * | 2019-06-14 | 2021-11-30 | 重庆渝佳环境影响评价有限公司 | Atmospheric sampling detector |
| CN114955169A (en) * | 2022-05-24 | 2022-08-30 | 科赛乐科技(上海)有限公司 | Filling type multi-dust sampling box and dust monitoring equipment using same |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180928 |
|
| WW01 | Invention patent application withdrawn after publication |