CN106353150A - Particle sampling device based on replacement of membrane of cam mechanism - Google Patents
Particle sampling device based on replacement of membrane of cam mechanism Download PDFInfo
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- CN106353150A CN106353150A CN201610763096.6A CN201610763096A CN106353150A CN 106353150 A CN106353150 A CN 106353150A CN 201610763096 A CN201610763096 A CN 201610763096A CN 106353150 A CN106353150 A CN 106353150A
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- filter membrane
- cam
- connects
- sampling device
- adjustment
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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
- G01N1/24—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)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention is applicable to the field of technical improvement for gas detection devices,and provides a particle sampling device based on replacement of membrane of cam mechanism,comprising:comprising a case, a control device, a cam mechanism and a filter membrane replacement mechanism are respectively arranged in the case, the filter membrane replacement mechanism is arranged on the cam mechanism, the filter membrane placement mechanism is arranged on the roof of the case, the control device is arranged on the bottom surface of the case and connects the the filter membrane replacement mechanism through a air pipe, and the filter membrane replacement mechanism connects a cutter through a sampling pipe, the cutter connects a sampling head. The cam mechanism is neat in layout, simple in structure, compact, easy to operate, coherent and stable, with less fault and a long life once adjusted. Since the movement of the follower depends on the the profile curve of the cam, as long as the appropriate cam profile is made, any predetermined movement rule can be got from a driven links, various complex movement requirements can be achieved.
Description
Technical field
The invention belongs to gas-detecting device technological improvement field, more particularly, to a kind of filter membrane is changed based on cam mechanism
Particle sampling device.
Background technology
Atmospheric particulates are one of most important atmosphere pollutions, are the general names of solid and liquid particles thing in air.Press
10 μm of coarse dispersion system (> can be divided into according to particle diameter) and colloidal dispersion system (0.001-10 μm).Wherein particle diameter is below 10 μm
Particulate matter (pm10) is referred to as pellet, and particle diameter is referred to as lung particulate matter in 2.5 μm of particles below things (pm2.5).
Particle diameter can enter human lung by respiratory system in 10um particles below thing (as pm10, pm2.5 etc.), increases respiratory system
Sickness rate, or even impact cardio-pulmonary function.The adsorption of pm2.5 heavy metal and gaseous contaminant etc. is obvious, to pollution
Thing has obvious enrichment, also can become the carrier of virus and antibacterial, be that respiratory infectious disease is added fuel to the flames, to health
Produce high risks.Pm10, pm2.5 are the final arch-criminals causing haze weather to produce simultaneously, and the haze sky of China became in recent years
A difficult problem for Chinese more than ten00000000 populations of puzzlement.
The Air Pollution Control of China controls steering pm10 to control by from so2, nox and tsp since two thousand, and will
It is increasingly turned to control pm2.5, meanwhile, in State Environmental Protection Administration's requirement surrounding air, particulate matter city up to standard is from municipality directly under the Central Government, province
Can be with 45 emphasis environmental conservation Urban Expansions to 300 such as single-row cities.Environmental Protection Agency (usa-epa) carried in 1997
Go out pm2.5 ambient air quality, European Union also clearly proposes overall as cut down pm10 concentration using cutting down pm2.5 concentration
A part for planning.In by the end of December, 2011, and new " ambient air quality " that Chinese Ministry of Environmental Protection's standing meeting is approved increases first
If pm2.5 mean concentration limit value.Show according to China's environmental monitoring data, the pollution problem of In The Atmosphere Over China particulate matter is very tight
High, rise to the primary influence factor of ambient air quality, the harm to human body for the particularly trickle Atmospheric particulates at present
Quite serious, therefore, Atmospheric particulates are carried out with the research of correlation and controls very necessary.
China mainly adopts gravimetric method to the mensure of Atmospheric particulates at present.Its principle is to pass through certain Cutting feature respectively
Sampler, with constant speed extract determined volume air, make pm2.5 and pm10 in surrounding air be trapped within the filter of known quality
On film, according to the of poor quality of filter membrane before and after sampling and sampling volume, calculate the concentration of pm2.5 and pm10.Metering particulate matter
In unit ug/m3, the volume of denominator should be the volume of (0 DEG C, 101.3kpa) under the status of criterion, under observed temperature, pressure
Volume all should be converted into the volume under the status of criterion.
Existing particle sampler filter membrane is arranged in cutting head, changes filter membrane, time and effort consuming by screwing type device
Inconvenient；Particulate in air size is different, prior art separate pm10, pm2.5 inefficiency and inaccurate it is impossible to
Meet the requirement of efficient sampling；Ambient air air pressure, temperature, gas flow etc. are measured inaccurate, directly influence sampling
Accuracy when operating mode is converted into mark condition for the volume of gas, and lead to measurement result incorrect.
Content of the invention
It is an object of the invention to provide a kind of change the particle sampling device of filter membrane it is intended to solve based on cam mechanism
Above-mentioned technical problem.
The present invention is achieved in that a kind of particle sampling device changing filter membrane based on cam mechanism, described granule
Thing sampling apparatuses include control device, cam mechanism, filter membrane replacing mechanism, sampling tube, sickle, sampler head and cabinet, institute
State control device, cam mechanism and filter membrane replacing mechanism to be respectively arranged in described cabinet, described filter membrane replacing mechanism is located at described
On cam mechanism, on the top board of described cabinet, described control device is located at the bottom of described cabinet for described filter membrane replacing mechanism
On face, described control device connects described filter membrane replacing apparatus by trachea, and described filter membrane replacing mechanism passes through described sampling tube
Connect described sickle, described sickle connects described sampler head.
The further technical scheme of the present invention is: described cam mechanism include adjust base plate, rocking bar fixed block, adjustment convex
Wheel, rocking bar, cam fixture, rocker lever ring and rocker lever, described rocking bar fixed block is on described adjustment base plate, described
Cam fixture passes through screw on described adjustment cam, and described rocking bar is each passed through described rocking bar fixed block, cam is fixed
Described adjustment cam is adjusted on base plate by part and adjustment cam located at described, and described rocker lever is located on the one of described rocking bar
End, described rocker lever is on described rocker lever ring.
The further technical scheme of the present invention is: described adjustment base plate is provided with a square opening.
The further technical scheme of the present invention is: described filter membrane replacing mechanism include top mounting subassembly, middle fixation kit, under
Fixation kit and coupling assembly, fixed assembly passes through described middle fixation kit and connects described lower fixation kit, described company
Connected components connect described lower fixation kit.
The further technical scheme of the present invention is: described coupling assembly include adjusting flange, adjustment block, adjust even head and
Ball bearing, one end that described regulation connects head connects described adjustment flange, and the other end that described regulation connects head passes through described adjustment
Block is connected by rotating shaft with described ball bearing, and described adjustment flange and adjustment block connect described lower fixation kit respectively.
The further technical scheme of the present invention is: described lower fixation kit includes bottom plate, located at described bottom plate
The slide block of upper four Angle Position, one end is located at the supercentral filter sleeve of described bottom plate, another located at described filter sleeve
The first filter membrane fixed cylinder on one end, is sheathed on the second filter membrane fixed cylinder in described first filter membrane fixed cylinder.
The further technical scheme of the present invention is: described middle fixation kit includes middle fixing plate, solid through described centre
The intermediate connector that fixed board is connected with described second filter membrane fixed cylinder, is respectively arranged on four Angle Position of described middle fixing plate
Slide block.
The further technical scheme of the present invention is: fixed assembly includes upper mounted plate, upper binding head and four leads
Axle, one end of described upper binding head connects described intermediate connector, and the other end of described upper binding head passes through fixed plate
Center connect described sampling tube, every described guide shaft is arranged with a spring, one end of every described guide shaft connects respectively
The Angle Position of fixed plate, the other end of every described guide shaft be each passed through described middle fixing plate Angle Position slide block and
The slide block of bottom plate Angle Position connects described adjustment base plate.
The further technical scheme of the present invention is: described sampling tube connects described upper binding head by dead ring.
The further technical scheme of the present invention is: this particle sampling device also includes leg, and described leg is located at described
On the base plate of cabinet.
The invention has the beneficial effects as follows: cam mechanism is by cam, the height of driven member and three basic building block compositions of frame
Vice mechanism.Cam is a component with curved profile or groove, generally driving link, makees constant speed gyration or reciprocal
Linear motion.Cam mechanism layout is clean and tidy, and structure is simple, compact, design is convenient, and action links up, stable, an adjusted fault
Less, life-span length.Because the characteristics of motion of driven member depends on cam profile curve, as long as making suitable cam contour, with regard to energy
Make follower lever obtain the arbitrarily predetermined characteristics of motion, realize the movement needs of various complexity.
Brief description
Fig. 1 is the structural representation of the particle sampling device changing filter membrane based on cam mechanism provided in an embodiment of the present invention
Figure.
Fig. 2 is cam mechanism provided in an embodiment of the present invention, filter membrane replacing mechanism, sampling tube, sickle and sampler head
Structural representation.
Fig. 3 is cam mechanism provided in an embodiment of the present invention and the structural representation of filter membrane replacing mechanism.
Specific embodiment
Reference: 10- sampler head 20- sickle 30- cabinet 40- filter membrane replacing mechanism 50- cam machine
Structure 60- control device 70- leg 80- handle 90- sampling tube 100- dead ring 401- upper mounted plate 402-
Upper binding head 403- guide shaft 404- intermediate connector 405- slide block 406- middle fixing plate 407- the second filter membrane is solid
Safety barrel 408- filter sleeve 409- bottom plate 410- adjustment flange 411- adjustment block 412- adjusts even head
413- ball bearing 501- adjustment base plate 502- adjustment cam 503- rocking bar fixed block 504- rocker lever ring
505- rocking bar 506- rocker lever.
Fig. 1 shows the particle sampling device changing filter membrane based on cam mechanism that the present invention provides, described particulate matter
Sampling apparatuses include control device 60, cam mechanism 50, filter membrane replacing mechanism 40, sampling tube 90, sickle 20, sampler head 10
And cabinet 30, described control device 60, cam mechanism 50 and filter membrane replacing mechanism 40 be respectively arranged in described cabinet 30, described filter
Film change mechanism 40 on described cam mechanism 50, described filter membrane replacing mechanism 40 on the top board of described cabinet 30, institute
State control device 60 on the bottom surface of described cabinet 30, described control device 60 connects described filter membrane replacing mechanism by trachea
40, described filter membrane replacing mechanism 40 connects described sickle 20 by described sampling tube 90, described sickle 20 connect described in adopt
Sample device head 10.
Described cam mechanism 50 includes adjusting base plate 501, rocking bar fixed block 503, adjustment cam 502, rocking bar 505, cam
Fixture, rocker lever ring 504 and rocker lever 506, described rocking bar fixed block 503 is on described adjustment base plate 501, described
Cam fixture pass through screw located at described adjustment cam 502 on, described rocking bar 505 be each passed through described rocking bar fixed block 503,
Described adjustment cam 502 is adjusted on base plate 501 located at described by cam fixture and adjustment cam 502, described rocker lever ring
504 located at one end of described rocking bar 505, and described rocker lever 506 is on described rocker lever ring 504.
Described adjustment base plate 501 is provided with a square opening.
Described filter membrane replacing mechanism 0 includes top mounting subassembly, middle fixation kit, lower fixation kit and coupling assembly, described
Top mounting subassembly passes through described middle fixation kit and connects described lower fixation kit, and described coupling assembly connects described lower fixing group
Part.
Described coupling assembly includes adjusting flange 410, adjustment block 411, the company of regulation 412 and ball bearing 413, described
One end of the company of regulation 412 connects described adjustment flange 410, and the other end of the described company of regulation 412 passes through described adjustment block
411 are connected by rotating shaft with described ball bearing 413, described adjustment flange 410 and adjustment block 411 connect respectively described lower solid
Determine assembly.
Described lower fixation kit include bottom plate 409, on described bottom plate 409 four Angle Position slide block
405, one end located at the supercentral filter sleeve 408 of described bottom plate 409, on the other end of described filter sleeve 408
The first filter membrane fixed cylinder, be sheathed on the second filter membrane fixed cylinder 407 in described first filter membrane fixed cylinder.
Described middle fixation kit includes middle fixing plate 406, solid with described second filter membrane through described middle fixing plate 406
The intermediate connector 404 that safety barrel 407 connects, is respectively arranged on the slide block 405 of four Angle Position of described middle fixing plate 406.
Fixed assembly includes upper mounted plate 401, upper binding head 402 and four guide shafts 403, described upper binding head
402 one end connects described intermediate connector 404, and the other end of described upper binding head 402 passes through in fixed plate 401
The heart connects described sampling tube 90, and every described guide shaft 403 is arranged with a spring, and one end of every described guide shaft 403 is respectively
Connect the Angle Position of fixed plate 401, the other end of every described guide shaft 403 is each passed through described middle fixing plate 406
The slide block 405 of the slide block 405 of Angle Position and bottom plate 409 Angle Position connects described adjustment base plate 501.
Described sampling tube 90 connects described upper binding head 402 by dead ring 100.
This particle sampling device also includes leg 70, and described leg 70 is on the base plate of described cabinet 30.
It is respectively provided on two sides with a handle 80 in described cabinet 30.By handle can convenient mobile device position
Put.
Sampler passes through flow measurement and control device controls air pump with constant flow rate 16.7l/min(operating point flow)
Draw ambient air sample, through oversampler entrance, sickle, particulate matter is trapped in filter membrane to sample, gas through effusion meter, take out
Air pump is discharged by air vent.Sampler measures pressure before effusion meter, temperature, ambient atmosphere pressure, ambient temperature before effusion meter in real time
Etc. parameter, sampling flow is controlled.The different sickle (as tsp, pm10, pm2.5 sickle etc.) of sampler configuration, that is,
Different particulate matter (as tsp, pm10, pm2.5) concentration can be analyzed.
Cam mechanism is by cam, the higher pair mechanism of driven member and three basic building block compositions of frame.Cam is a tool
There are the component of curved profile or groove, generally driving link, make constant speed gyration or linear reciprocating motion.Cam mechanism layout
Neatly, structure is simple, compact, it is convenient to design, and action links up, and stable, an adjusted fault is few, life-span length.Because driven member
The characteristics of motion depends on cam profile curve, as long as making suitable cam contour, follower lever just can be made to obtain arbitrarily predetermined
The characteristics of motion, realizes the movement needs of various complexity.The feature of cam mechanism is to can achieve any desired movement of driven member, therefore
Lathe, textile machine, light industry and machinery, printing machinery, electromechanical integration assembling are widely applied.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of the particle sampling device of filter membrane is changed it is characterised in that described particle sampling device based on cam mechanism
Including control device, cam mechanism, filter membrane replacing mechanism, sampling tube, sickle, sampler head and cabinet, described control device,
Cam mechanism and filter membrane replacing mechanism are respectively arranged in described cabinet, described filter membrane replacing mechanism on described cam mechanism,
Described filter membrane replacing mechanism on the top board of described cabinet, described control device on the bottom surface of described cabinet, described control
Device processed connects described filter membrane replacing apparatus by trachea, and described filter membrane replacing mechanism connects described cutting by described sampling tube
Device, described sickle connects described sampler head.
2. particle sampling device according to claim 1 it is characterised in that described cam mechanism include adjust base plate,
Rocking bar fixed block, adjustment cam, rocking bar, cam fixture, rocker lever ring and rocker lever, described rocking bar fixed block is located at institute
State adjustment base plate on, described cam fixture pass through screw located at described adjustment cam on, described rocking bar be each passed through described in shake
Described adjustment cam is adjusted on base plate located at described by bar fixed block, cam fixture and adjustment cam, described rocker lever ring
Located at one end of described rocking bar, described rocker lever is on described rocker lever ring.
3. particle sampling device according to claim 2 it is characterised in that described adjustment base plate to be provided with one square
Opening.
4. particle sampling device according to claim 3 is it is characterised in that described filter membrane replacing mechanism includes fixation
Assembly, middle fixation kit, lower fixation kit and coupling assembly, it is described that fixed assembly passes through described middle fixation kit connection
Lower fixation kit, described coupling assembly connects described lower fixation kit.
5. particle sampling device according to claim 4 it is characterised in that described coupling assembly include adjust flange,
Adjustment block, the company's of regulation head and ball bearing, one end that described regulation connects head connects described adjustment flange, and described regulation connects head
The other end passes through described adjustment block to be connected by rotating shaft with described ball bearing, and described adjustment flange and adjustment block connect respectively
Connect described lower fixation kit.
6. particle sampling device according to claim 5 is it is characterised in that described lower fixation kit includes lower fixation
Plate, on described bottom plate four Angle Position slide block, one end located at the supercentral filter sleeve of described bottom plate, if
The first filter membrane fixed cylinder on the other end of described filter sleeve, is sheathed on the second filter membrane in described first filter membrane fixed cylinder
Fixed cylinder.
7. particle sampling device according to claim 6 is it is characterised in that described middle fixation kit includes middle fixation
Plate, the intermediate connector being connected with described second filter membrane fixed cylinder through described middle fixing plate, it is respectively arranged on described centre solid
The slide block of four Angle Position of fixed board.
8. particle sampling device according to claim 7 is it is characterised in that fixed assembly includes fixation
Plate, upper binding head and four guide shafts, one end of described upper binding head connects described intermediate connector, described upper binding head another
End connects described sampling tube through the center of fixed plate, every described guide shaft is arranged with a spring, described in every
One end of guide shaft connects the Angle Position of fixed plate respectively, and the other end of every described guide shaft is each passed through described centre admittedly
The slide block of the slide block of fixed board Angle Position and bottom plate Angle Position connects described adjustment base plate.
9. particle sampling device according to claim 8 is it is characterised in that described sampling tube connects institute by dead ring
State upper binding head.
10. the particle sampling device according to any one of claim 1-9 is it is characterised in that this particle sampling device
Also include leg, described leg is on the base plate of described cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763096.6A CN106353150A (en) | 2016-08-30 | 2016-08-30 | Particle sampling device based on replacement of membrane of cam mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763096.6A CN106353150A (en) | 2016-08-30 | 2016-08-30 | Particle sampling device based on replacement of membrane of cam mechanism |
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| Publication Number | Publication Date |
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| CN106353150A true CN106353150A (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610763096.6A Pending CN106353150A (en) | 2016-08-30 | 2016-08-30 | Particle sampling device based on replacement of membrane of cam mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324229A (en) * | 2022-03-09 | 2022-04-12 | 南京波瑞自动化科技有限公司 | Gas analysis instrument capable of measuring equivalent concentration |
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| CN101403661A (en) * | 2005-08-30 | 2009-04-08 | 华南师范大学 | Filter membrane component automatic feeding apparatus of atmosphere particulate monitoring instrument |
| CN103759982A (en) * | 2014-01-06 | 2014-04-30 | 青岛恒远科技发展有限公司 | Membrane sampling device capable of lifting to move |
| CN103776665A (en) * | 2014-02-27 | 2014-05-07 | 青岛众瑞智能仪器有限公司 | Air particulate matter sampler capable of automatically changing membrane |
| CN103900862A (en) * | 2014-04-12 | 2014-07-02 | 青岛恒远检测技术有限公司 | Sampler with automatically replaced filter membrane and adsorption device and application method thereof |
| CN204495618U (en) * | 2015-03-23 | 2015-07-22 | 北京中海京诚检测技术有限公司 | Be convenient to the smoke flue gas sampling system changing sampling film |
| CN206114367U (en) * | 2016-08-30 | 2017-04-19 | 深圳市赛宝伦科技有限公司 | Particulate matter sampling device based on cam mechanism changes filter membrane |
-
2016
- 2016-08-30 CN CN201610763096.6A patent/CN106353150A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403661A (en) * | 2005-08-30 | 2009-04-08 | 华南师范大学 | Filter membrane component automatic feeding apparatus of atmosphere particulate monitoring instrument |
| CN103759982A (en) * | 2014-01-06 | 2014-04-30 | 青岛恒远科技发展有限公司 | Membrane sampling device capable of lifting to move |
| CN103776665A (en) * | 2014-02-27 | 2014-05-07 | 青岛众瑞智能仪器有限公司 | Air particulate matter sampler capable of automatically changing membrane |
| CN103900862A (en) * | 2014-04-12 | 2014-07-02 | 青岛恒远检测技术有限公司 | Sampler with automatically replaced filter membrane and adsorption device and application method thereof |
| CN204495618U (en) * | 2015-03-23 | 2015-07-22 | 北京中海京诚检测技术有限公司 | Be convenient to the smoke flue gas sampling system changing sampling film |
| CN206114367U (en) * | 2016-08-30 | 2017-04-19 | 深圳市赛宝伦科技有限公司 | Particulate matter sampling device based on cam mechanism changes filter membrane |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324229A (en) * | 2022-03-09 | 2022-04-12 | 南京波瑞自动化科技有限公司 | Gas analysis instrument capable of measuring equivalent concentration |
| CN114324229B (en) * | 2022-03-09 | 2022-05-24 | 南京波瑞自动化科技有限公司 | Gas analysis instrument capable of measuring equivalent concentration |
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