CN105466734A - Medium-flow dust sampler for atmosphere sampling investigation - Google Patents
Medium-flow dust sampler for atmosphere sampling investigation Download PDFInfo
- Publication number
- CN105466734A CN105466734A CN201510956871.5A CN201510956871A CN105466734A CN 105466734 A CN105466734 A CN 105466734A CN 201510956871 A CN201510956871 A CN 201510956871A CN 105466734 A CN105466734 A CN 105466734A
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- CN
- China
- Prior art keywords
- filtration membrane
- ultra filtration
- positioning seat
- erecting frame
- upper box
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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
- G01N1/2202—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
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a medium-flow dust sampler for atmosphere sampling investigation. The medium-flow dust sampler comprises an air collecting hood, a draught fan, a dust collector and a tail gas filtering system; the air collecting hood is in the shape of a trumpet, and a flowmeter and a timer are installed in the air collecting hood; the draught fan is connected with the air collecting hood through a first pipeline; the dust collector is connected with the draught fan through a second pipeline; the tail gas filtering system is connected with the dust collector through a third pipeline. The medium-flow dust sampler has the advantages of being simple in structure, easy to manufacture and practical and efficient.
Description
Technical field
The present invention relates to a kind of sampling thief, particularly a kind of for flow dust sampler in air sample survey.
Background technology
Along with the development people of society become more and more higher for the requirement of environment, own health is also more and more paid close attention to, and along with the people that affect of haze also to become for the dust content in air and are more and more concerned about, but existing dust sampling device has significant limitation, measuring accuracy is not high yet, a kind ofly just seems particularly important for flow dust sampler in air sample survey so design.
Summary of the invention
To the defect that above-mentioned background technology exists, the problem to be solved in the present invention weighs by LOAD CELLS the dust content that ultra filtration membrane collects, and the content of dust in air is calculated by flowmeter and timer, serve the effect that air is surveyed sample, provide a kind of for flow dust sampler in air sample survey.
For solving above-mentioned technical matters, structure of the present invention comprises
Gas skirt, described gas skirt is horn-like, is provided with flowmeter and timer in described gas skirt,
Blower fan, described blower fan is connected with gas skirt by the first pipeline,
Dust collector, described dust collector comprises upper box, lower box, ultra filtration membrane erecting frame, ultra filtration membrane, LOAD CELLS, weight plate, clamp system, positioning seat, supporting seat and movable plate, the two ends, left and right of described upper box are respectively arranged with air intake opening and gas outlet, described ultra filtration membrane is arranged in ultra filtration membrane erecting frame, the upper end of described lower box offers gathering sill, described upper box is connected with lower box by gathering sill, described ultra filtration membrane erecting frame is movably connected in gathering sill, described movable plate is movably connected in lower box, the lower end of described supporting seat is fixedly connected on positioning seat, the upper end of described supporting seat is connected to the bottom of ultra filtration membrane erecting frame, described positioning seat is movably connected in weight plate, described weight plate is connected to the top of movable plate, described LOAD CELLS is arranged between weight plate and movable plate, described clamp system is arranged in lower box, described clamp system is connected with supporting seat, also detent mechanism is provided with in the lower box of described positioning seat both sides, the top of described upper box offers the draw-in groove matched with ultra filtration membrane erecting frame upper end, the air intake opening of described upper box is connected with blower fan by second pipe,
Tail gas filtering system, described tail gas filtering system is connected with the gas outlet of upper box by the 3rd pipeline.
Further: described weight plate is vertically provided with guidepost, the bottom of described positioning seat offers the pilot hole matched with guidepost.
Further again: described clamp system comprises cylinder and clamping head, the both sides of described supporting seat are respectively provided with a clamping head, and the clamping head of described both sides is connected to a cylinder.
Further again: described detent mechanism comprises locating piece, spring, spherical dop and is opened in the semisphere draw-in groove of positioning seat both sides, the both sides of described positioning seat are respectively provided with a locating piece, described locating piece offers groove, described spherical dop is connected in groove by spring, when utilizing ultra filtration membrane to carry out dust collection, spherical dop snaps in semisphere draw-in groove under the action of the spring.
Further again: described tail gas filtering system is active carbon filtering device, described active carbon filtering device is connected with the gas outlet of upper box by the 3rd pipeline.
Adopt after said structure, the present invention weighs by LOAD CELLS the dust content that ultra filtration membrane collects, and is calculated the content of dust in air by flowmeter and timer, serves the effect surveyed sample air; And the objectionable impurities can removed by tail gas filtering system in air, protective effect is served to environment.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of dust collector.
Fig. 3 is the enlarged drawing of A in Fig. 2.
Embodiment
As shown in Figure 1 a kind of for flow dust sampler in air sample survey, comprise gas skirt 1, blower fan 2, dust collector 3 and tail gas filtering system 4, described gas skirt 1 is in horn-like, in described gas skirt 1, flowmeter and timer are installed, described blower fan 2 is connected with gas skirt 1 by the first pipeline, described dust collector 3 comprises upper box 5, lower box 6, ultra filtration membrane erecting frame 7, ultra filtration membrane, LOAD CELLS 10, weight plate 11, clamp system, positioning seat 15, supporting seat 16 and movable plate 9, the two ends, left and right of described upper box 5 are respectively arranged with air intake opening and gas outlet, described ultra filtration membrane is arranged in ultra filtration membrane erecting frame 7, the upper end of described lower box 6 offers gathering sill, described upper box 5 is connected with lower box 6 by gathering sill, described ultra filtration membrane erecting frame 7 is movably connected in gathering sill, described movable plate 9 is movably connected in lower box 6, the lower end of described supporting seat 16 is fixedly connected on positioning seat 15, the upper end of described supporting seat 16 is connected to the bottom of ultra filtration membrane erecting frame 7, described positioning seat 15 is movably connected in weight plate 11, described weight plate 11 is connected to the top of movable plate 9, described LOAD CELLS 10 is arranged between weight plate 11 and movable plate 9, described clamp system is arranged in lower box 6, described clamp system is connected with supporting seat 16, also detent mechanism is provided with in the lower box 6 of described positioning seat 15 both sides, the top of described upper box 5 offers the draw-in groove 8 matched with ultra filtration membrane erecting frame 7 upper end, the air intake opening of described upper box 5 is connected with blower fan 2 by second pipe, described tail gas filtering system 4 is connected with the gas outlet of upper box 5 by the 3rd pipeline, described weight plate 11 is vertically provided with guidepost 12, the bottom of described positioning seat 15 offers the pilot hole matched with guidepost 12.When needs carry out dust collection, promoting movable plate 9 makes the upper end of ultra filtration membrane erecting frame 7 snap in draw-in groove 8, now detent mechanism then can start voluntarily and positions with positioning seat 15, after location, start clamp system clamp supporting seat 16, thus the change making ultra filtration membrane erecting frame 7 no longer occur on height, now unclamp movable plate 9, movable plate 9 is meeting slide downward under the effect of self gravitation, make movable plate 9 vertical motion to the bottom in lower box 6 by the design of guidepost 12 and pilot hole, now weight plate 11 can not be subject to the pressure of ultra filtration membrane erecting frame 7, after dust gathers, close clamp system, ultra filtration membrane erecting frame 7 can move downward along gathering sill under the effect of self gravitation, positioning seat 15 is directly contacted with weight plate 11, the quality of the dust that ultra filtration membrane collects now is measured by weight plate 11, then combine the flowmeter be arranged in gas skirt 1 and timer, calculate the content of dust in unit volume.The present invention weighs by LOAD CELLS the dust content that ultra filtration membrane collects, and is calculated the content of dust in air by flowmeter and timer, serves the effect surveyed sample air.
Clamp system as shown in Figure 2 comprises cylinder 13 and clamping head 14, and the both sides of described supporting seat 16 are respectively provided with a clamping head 14, and the clamping head 14 of described both sides is connected to a cylinder 13.When needs clamp supporting seat 16, start the cylinder 13 of both sides to make the cylinder 13 of both sides promote clamping head 14 to move to supporting seat 16, utilize the clamping head 14 of both sides to complete clamping operation to supporting seat 16, thus the height of ultra filtration membrane erecting frame 7 is not being changed.
Detent mechanism as shown in Figures 2 and 3 comprises locating piece 17, spring 20, spherical dop 18 and is opened in the semisphere draw-in groove 21 of positioning seat 15 both sides, the both sides of described positioning seat 15 are respectively provided with a locating piece 17, described locating piece 17 offers groove 19, described spherical dop 18 is connected in groove 19 by spring 20, when utilizing ultra filtration membrane to carry out dust collection, spherical dop 18 snaps in semisphere draw-in groove 21 under the effect of spring 20.When the upper end of ultra filtration membrane erecting frame 7 snaps in draw-in groove 8, spherical dop 18 snaps in semisphere draw-in groove 21 under the effect of spring 20, thus realizes the positioning work to positioning seat 15.The design has the advantage that structure is simple, be easy to device and practicality and high efficiency.
Tail gas filtering system 4 in the design is active carbon filtering device, and described active carbon filtering device is connected with the gas outlet of upper box 5 by the 3rd pipeline.The present invention removes the objectionable impurities in residual gas by active carbon filtering device, thus serves protective effect to environment.
Claims (5)
1., for a flow dust sampler in air sample survey, it is characterized in that: comprise
Gas skirt (1), described gas skirt (1), in horn-like, is provided with flowmeter and timer in described gas skirt (1),
Blower fan (2), described blower fan (2) is connected with gas skirt (1) by the first pipeline,
Dust collector (3), described dust collector (3) comprises upper box (5), lower box (6), ultra filtration membrane erecting frame (7), ultra filtration membrane, LOAD CELLS (10), weight plate (11), clamp system, positioning seat (15), supporting seat (16) and movable plate (9), the two ends, left and right of described upper box (5) are respectively arranged with air intake opening and gas outlet, described ultra filtration membrane is arranged in ultra filtration membrane erecting frame (7), the upper end of described lower box (6) offers gathering sill, described upper box (5) is connected with lower box (6) by gathering sill, described ultra filtration membrane erecting frame (7) is movably connected in gathering sill, described movable plate (9) is movably connected in lower box (6), the lower end of described supporting seat (16) is fixedly connected on positioning seat (15), the upper end of described supporting seat (16) is connected to the bottom of ultra filtration membrane erecting frame (7), described positioning seat (15) is movably connected in weight plate (11), described weight plate (11) is connected to the top of movable plate (9), described LOAD CELLS (10) is arranged between weight plate (11) and movable plate (9), described clamp system is arranged in lower box (6), described clamp system is connected with supporting seat (16), also detent mechanism is provided with in the lower box (6) of described positioning seat (15) both sides, the top of described upper box (5) offers the draw-in groove (8) matched with ultra filtration membrane erecting frame (7) upper end, the air intake opening of described upper box (5) is connected with blower fan (2) by second pipe,
Tail gas filtering system (4), described tail gas filtering system (4) is connected by the gas outlet of the 3rd pipeline with upper box (5).
2. according to claim 1 a kind of for flow dust sampler in air sample survey, it is characterized in that: described weight plate (11) is vertically provided with guidepost (12), the bottom of described positioning seat (15) offers the pilot hole matched with guidepost (12).
3. according to claim 1 a kind of for flow dust sampler in air sample survey, it is characterized in that: described clamp system comprises cylinder (13) and clamping head (14), the both sides of described supporting seat (16) are respectively provided with a clamping head (14), and the clamping head (14) of described both sides is connected to a cylinder (13).
4. according to claim 1 a kind of for flow dust sampler in air sample survey, it is characterized in that: described detent mechanism comprises locating piece (17), spring (20), spherical dop (18) and be opened in the semisphere draw-in groove (21) of positioning seat (15) both sides, the both sides of described positioning seat (15) are respectively provided with a locating piece (17), described locating piece (17) offers groove (19), described spherical dop (18) is connected in groove (19) by spring (20), when utilizing ultra filtration membrane to carry out dust collection, spherical dop (18) snaps in semisphere draw-in groove (21) under the effect of spring (20).
5. according to claim 1 a kind of for flow dust sampler in air sample survey, it is characterized in that: described tail gas filtering system (4) is active carbon filtering device, described active carbon filtering device is connected with the gas outlet of upper box (5) by the 3rd pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956871.5A CN105466734A (en) | 2015-12-18 | 2015-12-18 | Medium-flow dust sampler for atmosphere sampling investigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956871.5A CN105466734A (en) | 2015-12-18 | 2015-12-18 | Medium-flow dust sampler for atmosphere sampling investigation |
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| Publication Number | Publication Date |
|---|---|
| CN105466734A true CN105466734A (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510956871.5A Pending CN105466734A (en) | 2015-12-18 | 2015-12-18 | Medium-flow dust sampler for atmosphere sampling investigation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626160A (en) * | 2017-10-20 | 2018-01-26 | 南京泰祺瑞新材料科技有限公司 | A kind of dust collecting |
| CN107796670A (en) * | 2017-09-18 | 2018-03-13 | 中国科学院东北地理与农业生态研究所 | A kind of passive atmospheric sampling apparatus and its application method by all-wing aircraft control direction |
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| JPS6020694B2 (en) * | 1982-04-15 | 1985-05-23 | 工業技術院長 | Suspended particulate matter collection device |
| CN1731138A (en) * | 2005-08-30 | 2006-02-08 | 华南师范大学 | Automatic feeding and laying off device for filter membrane component in atmosphere granule monitoring instrument |
| US20080049809A1 (en) * | 2006-07-07 | 2008-02-28 | Mettler-Toledo Ag | Measuring instrument for gravimetric moisture determination |
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2015
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| CN1731138A (en) * | 2005-08-30 | 2006-02-08 | 华南师范大学 | Automatic feeding and laying off device for filter membrane component in atmosphere granule monitoring instrument |
| US20080049809A1 (en) * | 2006-07-07 | 2008-02-28 | Mettler-Toledo Ag | Measuring instrument for gravimetric moisture determination |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796670A (en) * | 2017-09-18 | 2018-03-13 | 中国科学院东北地理与农业生态研究所 | A kind of passive atmospheric sampling apparatus and its application method by all-wing aircraft control direction |
| CN107626160A (en) * | 2017-10-20 | 2018-01-26 | 南京泰祺瑞新材料科技有限公司 | A kind of dust collecting |
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Application publication date: 20160406 |