CN207318181U - A kind of road surface airborne dust trap, airborne dust detection device - Google Patents
A kind of road surface airborne dust trap, airborne dust detection device Download PDFInfo
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- CN207318181U CN207318181U CN201721383850.XU CN201721383850U CN207318181U CN 207318181 U CN207318181 U CN 207318181U CN 201721383850 U CN201721383850 U CN 201721383850U CN 207318181 U CN207318181 U CN 207318181U
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- filter membrane
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- airborne dust
- dust
- road surface
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Abstract
The utility model provides a kind of road surface airborne dust trap, airborne dust detection device, including airborne dust trap, the airborne dust trap is arranged in pumping dynamic dust collector, dynamic dust collector connection vehicle power supply is evacuated to be used for for its power supply, the airborne dust trap is connected to airborne dust sample cover by sample conduit, pumping dynamic dust collector air-breathing causes the road surface airborne dust in airborne dust sample cover to be entered by sample conduit in airborne dust trap, dust emission weight calculation accuracy is high, when carrying collecting bag with airborne dust trap replacement dust catcher, it is obvious that filter membrane catches dirt the relative weight gain, relative error is small；Collecting efficiency is high, filter membrane traps 0.3 μm of particle collection rate up to more than 99% in trap, and trap is small, light-weight, it is simple in structure, it is of low cost, it is placed in dust catcher and substitutes collecting bag, simple installation, it is easy to carry, it is convenient to replace filter membrane, is detected using gravimetric method, accuracy of measurement is high.
Description
Technical field
Road surface airborne dust acquisition technique field is the utility model is related to, is specially a kind of road surface airborne dust trap, airborne dust detection
Device.
Background technology
As expanding economy and the continuous of urbanization process are accelerated, the atmosphere polluting problem centered on city is increasingly tight
Weight.The influence that atmosphere pollution produces health is increasing, its main route of entry is to pass through human body respiration, and is breathed
System then becomes the target organ that atmosphere pollution directly acts on.Atmosphere pollution causes respiratory disease, shadow by respiratory system
Lung functions and immune function of human body are rung so as to influence general mortality rate.Influence of the atmosphere pollution to health, comes for us
It is to have difficulty in breathing not smooth to say most direct impression, and atmosphere pollution enters human respiratory tract by breathing, lung even into
Alveolar, and threaten to human life.
It is well known that road surface airborne dust is the important pollution sources for influencing urban air-quality, it is the important next of atmosphere pollution
One of source, and an important factor for formation haze.So-called airborne dust, it is believed that live from natural cause and the various mankind
It is dynamic, settle or lodge in that road, roofing, construction site, stockyard and bare area etc. are all kinds of use ground surface, in natural forces such as wind and artificially
Under the action of, a kind of particulate matter for being again introduced into surrounding air, airborne dust have impact on atmosphere quality and atmospheric visibility, break
Bad urban landscape, damages human health, influences the living environment and quality of life of people, be endangered in current China city it is most tight
The envirment factor of weight.To ensure body health of people, China promulgates that multi-section laws and regulations are related to haze pollution, these methods
Laws ＆ Regulations mainly have：《Air Pollution Prevention Law》.《Air Pollution Prevention Law》Legislation the purpose of be Air Pollution prevention and control, protection and
Improve the ecological environment, living environment, promote society and economic sustainable development.Related scientific research mechanism, enterprise begin one's study pair
The monitoring and improvement of atmosphere pollution.
At present both at home and abroad, detect that the instrument and equipment of airborne dust uses is the instrument in terms of air pollution monitoring, such as total to suspend
Particle sampler, PM2.5, PM10 sampling monitoring instrument, atmosphere pollution on-line monitoring system, these instrument and equipments all can only obtain
Total contamination data (mg/m3) in air, it is impossible to reflect the situation of each pollution sources, airborne dust is one of source of pollution,
The formation of airborne dust can mainly be attributed to five sources again in city：The laying road caused by communications and transportation is not laid with
Road airborne dust；The wind erosion dust produced in exposed earth's surface；Stockyard airborne dust caused by the handling and carrying of goods and materials in bulk；Applied by building
Dust from construction sites is being built caused by work operation；And the uncontrollable discharge in industrial production activities.
In order to carry out prevention and control of air pollution work, it is necessary to picked up from pollution sources source, it is necessary to grasp each pollution sources
To total atmosphere pollution proportion share, each good pollution sources source is administered in control.But do not occur also on the market special
Device for the detection of urban pavement airborne dust.
Utility model content
The purpose of this utility model is to provide a kind of road surface airborne dust trap, airborne dust detection device, sampling selectivity compared with
Good, collecting efficiency is high, can accurately evaluate urban road surfaces cleanliness factor, and road surface airborne dust is administered for urban road administrative department
Administration base is provided with supervision road cleaning, flushing.
The technical solution of the utility model：A kind of road surface airborne dust trap, including for connecting the connecting bending of sample conduit
Head, the lower end of the connecting bend are inserted into trap seat, and the lower end of trap seat is provided with sealing ring, the lower section of sealing ring
Filter membrane holder is set, is provided with filter membrane support below filter membrane holder, filter membrane is fixedly clamped at both by filter membrane holder and filter membrane support
Between, filter membrane clip friction top is provided with below filter membrane support, the filter membrane clip friction top is fixedly connected and holds with trap seat
Filter membrane support.
The upper inner wall of the connecting bend is provided with connecting bushing, the tapered hole of connecting bushing endoporus.
The intercommunicating pore that the upper end of the trap seat is inserted into for ease of connecting bend lower end, the lateral wall of trap seat lower end
On be provided with the external screw thread being threadedly coupled with filter membrane clip friction top, the lower end of the trap seat is offered easy to place sealing ring
Sealing ring placed cavity and place filter membrane holder filter membrane holder placed cavity, sealing ring placed cavity is than filter membrane holder placed cavity
Diameter is small so that sealing ring placed cavity and filter membrane holder placed cavity form support level.
The sealing ring is silicone rubber O-ring, and the outer of sealing ring is provided with to be engaged with support level on trap seat
Boss, support level and boss be engaged to form sealing, prevents gas leakage.
The lower end of the filter membrane holder is offered easy to place the filter membrane chamber of filter membrane support, is uniformly opened among the filter membrane support
Equipped with air hole, filter membrane support is placed on filter membrane intracavitary in order to which the filter membrane of filter membrane support upper surface is compressed.
The upper end of the filter membrane clip friction top offers the connecting hole being connected with trap seat, is opened up on the side wall of connecting hole
Have and offer convenient progress screw thread process with the matched internal thread of external screw thread, the internal thread lower section of the filter membrane clip friction top
Escape, is provided with the supporting part for being extending inwardly for holding filter membrane holder and filter membrane support below escape, in filter membrane
The lower end of clip hold-down lid is further opened with the taper air outlet easy to outlet air.
The lower end of the connecting bend and trap seat PVC glue stickings, the upper inner wall of connecting bend is with being connected lining
Apply mechanically PVC glue stickings.
The air hole uniformly opened up among the filter membrane support is bellmouth.
A kind of road surface airborne dust detection device, including airborne dust trap, the airborne dust trap are arranged on pumping power dust suction
In device, pumping dynamic dust collector connection vehicle power supply is used to be connected to by sample conduit for its power supply, the airborne dust trap
Airborne dust sample cover, pumping dynamic dust collector air-breathing cause the road surface airborne dust in airborne dust sample cover to enter airborne dust by sample conduit
In trap.
The pumping dynamic dust collector includes the dust catcher pump head for providing suction, and shell of the dust collector, which surrounds, forms convenient placement
The dust catcher cavity of airborne dust trap, dust catcher pump head are installed on the top of dust catcher cavity, are also equipped with shell of the dust collector
Easy to the dust catcher inlet pipe connection being connected with sample conduit, dust catcher inlet pipe connection one end is stretched into dust catcher cavity and is inserted into
To the upper end of connecting bend, the other end stretches out dust catcher cavity and is connected with sample conduit.
Compared with prior art, the beneficial effects of the utility model are：
Dust emission weight calculation accuracy is high, and when carrying collecting bag with airborne dust trap replacement dust catcher, filter membrane catches the opposite increasing of dirt
Weight is obvious, and relative error is small；Collecting efficiency is high, and filter membrane traps 0.3 μm of particle collection rate up to more than 99% in trap, catches
Storage is small, light-weight, simple in structure, of low cost, is placed in dust catcher and substitutes collecting bag, and simple installation is easy to carry,
It is convenient to replace filter membrane, is detected using gravimetric method, accuracy of measurement is high.
Brief description of the drawings
Fig. 1 is the utility model airborne dust trap overall structure diagram；
Fig. 2 is the utility model trap holder structure schematic diagram；
Fig. 3 is the utility model ring structure schematic diagram；
Fig. 4 is the utility model filter membrane clip seat structure schematic diagram；
Fig. 5 is the utility model filter membrane support cross-sectional view；
Fig. 6 is the utility model filter membrane support overlooking the structure diagram；
Fig. 7 is the utility model filter membrane clip friction top structure diagram；
Fig. 8 is the utility model road surface airborne dust structure of the detecting device schematic diagram；
Fig. 9 is the utility model airborne dust trap mounting structure schematic diagram；
Figure 10 is the utility model airborne dust sample cover overall structure diagram；
Figure 11 is the utility model airborne dust sample cover bottom schematic cross-sectional view；
Figure 12 is the A portions enlarged diagram of the utility model Figure 10.
In figure：1st, connecting bend, 2, connecting bushing, 3, trap seat, 4, sealing ring, 5, filter membrane holder, 6, filter membrane, 7, filter
Film support, 8, filter membrane clip friction top, 30, intercommunicating pore, 31, external screw thread, 32, sealing ring placed cavity, 33, filter membrane holder placed cavity, 34,
Support level, 40, boss, 50, filter membrane chamber, 70, air hole, 80, internal thread, 81, connecting hole, 82, escape, 83, supporting part,
84th, taper air outlet, 100, mesh, 200, sample conduit, 300, pumping dynamic dust collector, 400, airborne dust trap, 500, car
Carry power supply, 301, dust catcher pump head, 302, shell of the dust collector, 303, dust catcher cavity, 304, inlet pipe connection, 102, conduit connects
Connector, 103, O-ring seal, 104, net-filter assembly, 105, connecting seat, 106, taper cover body, 107, annular ring, 108, annular rubber
Cushion rubber, 109, gas-guide tube.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of road surface airborne dust trap 400, including for even
The connecting bend 1 of sample conduit 200 is connect, the lower end of the connecting bend 1 is inserted into trap seat 3, the lower end of trap seat 3
Sealing ring 4 is provided with, the lower section of sealing ring 4 sets filter membrane holder 5, and the lower section of filter membrane holder 5 is provided with filter membrane support 7, filter membrane clip
Filter membrane 6 is fixedly clamped therebetween by seat 5 and filter membrane support 7, and the lower section of filter membrane support 7 is provided with filter membrane clip friction top 8, the filter
Film clip hold-down lid 8 is fixedly connected with trap seat 3 and holds filter membrane support 7.
The upper inner wall of the connecting bend 1 is provided with connecting bushing 2.Connecting bushing material is polyformaldehyde, with being connected
Elbow is bonded, and must not be had gas leak phenomenon, when coordinating with dust catcher inlet pipe connection, should be plugged freely.Connecting bushing is used to connect
Dust catcher inlet pipe connection, the tapered hole of connecting bushing endoporus, dust catcher air inlet connection is inserted into when trapping device assembly slightly exerts a force
Pipe, the equal flexible of the two material, forms slight interference and coordinates, can prevent gas leakage.Connecting bend is used to connect trap seat and connection
Bushing；Its underpart outside diameter φ 59 and trap seat PVC glue stickings；Upper inner diameter φ 50 connecting bushing PVC glue stickings.
Refer to Fig. 2 to Fig. 7, the intercommunicating pore 30 that the upper end of the trap seat 3 is inserted into for ease of connecting bend lower end, catches
The external screw thread 31 being threadedly coupled with filter membrane clip friction top 8 is provided with the lateral wall of 3 lower end of storage seat, the trap seat 3
Lower end offers the sealing ring placed cavity 32 easy to place sealing ring 4 and places the filter membrane holder placed cavity 33 of filter membrane holder 5,
Sealing ring placed cavity 32 is smaller than the diameter of filter membrane holder placed cavity 33 so that sealing ring placed cavity 32 and filter membrane holder placed cavity 33
Form support level 34.
The sealing ring 4 is silicone rubber O-ring, and the outer of sealing ring 4 is provided with and 34 phase of support level on trap seat
The boss 40 of cooperation, support level 34 and boss 40 are engaged to form sealing, prevent gas leakage.
The lower end of the filter membrane holder 5 is offered easy to place the filter membrane chamber 50 of filter membrane support 7, and the centre of filter membrane support 7 is
Even offers air hole 70, and filter membrane support 7 is placed in filter membrane chamber 50 in order to which the filter membrane 6 of filter membrane support upper surface is compressed.Filter
Membrane material material position glass fibre, 90,0.3 μm of standard particle retention efficiency >=99% of specification φ；Filter membrane support 7 is used to filter membrane 6 being pressed into
In filter membrane holder 5, filter membrane 6 is held, sampling air flow impact is resisted, prevents the breakage of filter membrane 6.
The upper end of the filter membrane clip friction top 8 offers the connecting hole 81 being connected with trap seat 3, the side wall of connecting hole 81
On offer internal thread 80 matched with external screw thread 31, the lower section of internal thread 80 of the filter membrane clip friction top 8 offers conveniently
The escape 82 of screw thread process is carried out, the lower section of escape 82, which is provided with, to be extending inwardly for filter membrane holder 5 and filter membrane support 7
The supporting part 83 held, the taper air outlet 84 easy to outlet air is further opened with the lower end of filter membrane clip friction top 8.
Referring to Fig. 8, a kind of road surface airborne dust detection device, including airborne dust trap 400, the airborne dust trap 400 are set
Put in pumping dynamic dust collector 300, pumping dynamic dust collector 300 connects vehicle power supply 500 and is used for for its power supply, the airborne dust
Trap 400 is connected to airborne dust sample cover 100 by sample conduit 200, and pumping 300 air-breathing of dynamic dust collector causes airborne dust to sample
Road surface airborne dust in cover 100 is entered in airborne dust trap 400 by sample conduit 200.
Referring to Fig. 9, the pumping dynamic dust collector 300 includes the dust catcher pump head 301 for providing suction, shell of the dust collector
302 around the convenient dust catcher cavity 303 for placing airborne dust trap 400 is formed, and dust catcher pump head 301 is installed on dust catcher cavity
303 top, the dust catcher inlet pipe connection 304 easy to be connected with sample conduit 200 is also equipped with shell of the dust collector 302,
304 one end of dust catcher inlet pipe connection stretches into dust catcher cavity 303 and is inserted into the upper end of connecting bend 1, and the other end, which stretches out, to be inhaled
Dirt device cavity 303 is connected with sample conduit 200.
0 to Figure 12 is please referred to Fig.1, a kind of road surface airborne dust sample cover, including the conduit for connecting sample conduit 200 connect
First 102, the lower end insertion connecting seat 105 of the catheter connecting joint 102, is installed between catheter connecting joint 102 and connecting seat 105
The net-filter assembly 104 for being useful for preventing the bulky grain thing beyond airborne dust to enter, net-filter assembly 104 is with catheter connecting joint 102 and even
105 contact site of joint chair is provided with the O-ring seal 103 for preventing gas leakage, and the lower end of the connecting seat 105 is welded with taper
Cover body 106, the bottom of taper cover body 106 are welded with for improving taper cover body bottom margin intensity and taper cover body overall stiffness
Annular ring 107, annular rubber ring 108 is cased with annular ring 107, is located at annular ring 107 in the lower end of taper cover body 106
Top is welded with gas-guide tube 109, and 109 inlet end of gas-guide tube is arranged on outside taper cover body 106, and outlet side is arranged on cone-shaped hood
In body 106, gas-guide tube 109 is provided with three, and three gas-guide tubes are welded on the same level of taper cover body 106 and previous is led
The outlet side of tracheae and the inlet end of latter gas-guide tube are staggered.
Airborne dust in sample cover area is by being evacuated the pumping negative pressure of dynamic dust collector, by pipeline with air-flow none-disk terminal, nothing
Leakage all by the filter membrane in trap filter membrane clip, adsorb on filter membrane, meter filter membrane weightening.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (10)
- A kind of 1. road surface airborne dust trap, it is characterised in that：Including the connecting bend for connecting sample conduit, the connecting bending The lower end of head is inserted into trap seat, and the lower end of trap seat is provided with sealing ring, and the lower section of sealing ring sets filter membrane holder, Filter membrane support is provided with below filter membrane holder, filter membrane is fixedly clamped therebetween by filter membrane holder and filter membrane support, filter membrane support Lower section is provided with filter membrane clip friction top, and the filter membrane clip friction top is fixedly connected with trap seat and holds filter membrane support.
- 2. airborne dust trap in road surface according to claim 1, it is characterised in that：The upper inner wall of the connecting bend is set It is equipped with connecting bushing, the tapered hole of connecting bushing endoporus.
- 3. airborne dust trap in road surface according to claim 1, it is characterised in that：The upper end of the trap seat is for ease of even Connect the intercommunicating pore of elbow lower end insertion, be provided with the lateral wall of trap seat lower end is threadedly coupled with filter membrane clip friction top outside Screw thread, the lower end of the trap seat offer the sealing ring placed cavity easy to place sealing ring and place the filter of filter membrane holder Film holder placed cavity, sealing ring placed cavity is smaller than the diameter of filter membrane holder placed cavity so that sealing ring placed cavity and filter membrane holder are put Put chamber and form support level.
- 4. airborne dust trap in road surface according to claim 3, it is characterised in that：The sealing ring is silicone rubber O-ring, The outer of sealing ring be provided with the matched boss of support level on trap seat, support level and boss be engaged to be formed it is close Envelope, prevents gas leakage.
- 5. airborne dust trap in road surface according to claim 3, it is characterised in that：The lower end of the filter membrane holder offers just It is uniform among the filter membrane chamber for placing filter membrane support, the filter membrane support to offer air hole, filter membrane support be placed on filter membrane intracavitary with Easy to which the filter membrane of filter membrane support upper surface is compressed.
- 6. airborne dust trap in road surface according to claim 3, it is characterised in that：The upper end of the filter membrane clip friction top opens up There is the connecting hole being connected with trap seat, offered on the side wall of connecting hole and the matched internal thread of external screw thread, the filter membrane The convenient escape for carrying out screw thread process is offered below the internal thread of clip hold-down lid, is provided with and extends internally below escape For the supporting part for holding filter membrane holder and filter membrane support, the cone easy to outlet air is further opened with the lower end of filter membrane clip friction top Shape air outlet.
- 7. airborne dust trap in road surface according to claim 3, it is characterised in that：The lower end of the connecting bend and trap Seat PVC glue stickings, upper inner wall and the connecting bushing PVC glue stickings of connecting bend.
- 8. airborne dust trap in road surface according to claim 5, it is characterised in that：Uniformly opened up among the filter membrane support saturating Stomata is bellmouth.
- A kind of 9. road surface airborne dust detection device, it is characterised in that：Including the airborne dust trap as described in claim 1-8 is any, The airborne dust trap is arranged in pumping dynamic dust collector, and pumping dynamic dust collector connection vehicle power supply is used to be its power supply, The airborne dust trap is connected to airborne dust sample cover by sample conduit, and pumping dynamic dust collector air-breathing causes in airborne dust sample cover Road surface airborne dust entered by sample conduit in airborne dust trap.
- 10. airborne dust detection device in road surface according to claim 9, it is characterised in that：The pumping dynamic dust collector includes The dust catcher pump head of suction is provided, shell of the dust collector, which surrounds, forms the convenient dust catcher cavity for placing airborne dust trap, dust catcher Pump head is installed on the top of dust catcher cavity, and the dust catcher air inlet easy to be connected with sample conduit is also equipped with shell of the dust collector Connecting tube, dust catcher inlet pipe connection one end stretch into dust catcher cavity and are inserted into the upper end of connecting bend, and the other end, which stretches out, to be inhaled Dirt device cavity is connected with sample conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721383850.XU CN207318181U (en) | 2017-10-23 | 2017-10-23 | A kind of road surface airborne dust trap, airborne dust detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721383850.XU CN207318181U (en) | 2017-10-23 | 2017-10-23 | A kind of road surface airborne dust trap, airborne dust detection device |
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| Publication Number | Publication Date |
|---|---|
| CN207318181U true CN207318181U (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721383850.XU Active CN207318181U (en) | 2017-10-23 | 2017-10-23 | A kind of road surface airborne dust trap, airborne dust detection device |
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| CN (1) | CN207318181U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588994A (en) * | 2017-10-23 | 2018-01-16 | 武汉碧海云天科技股份有限公司 | A kind of road surface airborne dust trap, airborne dust detection means and detection method |
| CN109044188A (en) * | 2018-09-13 | 2018-12-21 | 沈阳环境科学研究院 | A kind of dust on the roads comprehensive detection system |
-
2017
- 2017-10-23 CN CN201721383850.XU patent/CN207318181U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588994A (en) * | 2017-10-23 | 2018-01-16 | 武汉碧海云天科技股份有限公司 | A kind of road surface airborne dust trap, airborne dust detection means and detection method |
| CN107588994B (en) * | 2017-10-23 | 2023-12-12 | 武汉碧海云天科技股份有限公司 | Pavement dust catcher, dust detection device and detection method |
| CN109044188A (en) * | 2018-09-13 | 2018-12-21 | 沈阳环境科学研究院 | A kind of dust on the roads comprehensive detection system |
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