CN202735139U - Large-power colliding device for sampling particles - Google Patents
Large-power colliding device for sampling particles Download PDFInfo
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- CN202735139U CN202735139U CN 201220274465 CN201220274465U CN202735139U CN 202735139 U CN202735139 U CN 202735139U CN 201220274465 CN201220274465 CN 201220274465 CN 201220274465 U CN201220274465 U CN 201220274465U CN 202735139 U CN202735139 U CN 202735139U
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- baffle plate
- air intake
- cover body
- air
- colliding
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Abstract
The utility model discloses a large-power colliding device for sampling particles, and the large-power colliding device comprises a shell and an air flow passage which is arranged inside the shell, two ends of the air flow passage are respectively provided with an air inlet and an air outlet on the shell, a sampling filter membrane is arranged inside the air flow passage, a particle stop device is installed on the air inlet of the shell, the particle stop device comprises a hollow cover body and a baffle plate which is arranged inside the cover body, the cover body is provided with an air entrance which is used for external air to enter, and the air entrance consists of a plurality of densely-distributed through holes; and the baffle plate is kept away from the air entrance, the baffle plate is right opposite to the air entrance and completely blocks the air entrance, and a gap for communicating the air entrance and the air inlet is formed between the side edge of the baffle plate and the inner wall of the cover body. By adjusting the size of meshes of the air entrance of the particle device and the distance between the baffle plate and the air entrance, the baffle plate can stop different particles with different granularity, so that the needed particles are collected onto the sampling filter membrane; and the overall structure is simple, flexibility in use is realized, and the sampling efficiency and the sampling quality can be improved.
Description
Technical field
The utility model relates to the apparatus field technology of microorganism in the atmosphere or particle sampling, refers in particular to a kind of high-power particle sampler with colliding device.
Background technology
Along with industrial expansion, the particulate pollutant degree in the atmosphere constantly increases, and these particulate pollutants can damage nervous system and the various objectionable impuritiess such as carcinogenic in can absorbed airs, bring a lot of negative effects for environment and human health.And how the particle in the atmosphere is carried out grain size segregation and demarcation, be research and the matter of utmost importance that solves Atmospheric Particulate Matter.
Usually, people adopt the particle sampler system to obtain the particle of appropriate level in the air, so that air quality or pollution index etc. is carried out effective determination and analysis.For example, adopt impact sampler to carry out the grain size segregation sampling, the structure that present classification collides device mainly includes housing and the gas channel that is arranged in the housing, be disposed with multistage collision collection group along airflow direction in this gas channel, gas enters the multistage collision collection group of flowing through successively behind the gas channel, and the particle of its appropriate level granularity is also collected respectively.
Sometimes, we only need optionally the wherein content of the particle of certain numerical value of determination and analysis, for example, PM10 or PM2.5 etc., for Quick Acquisition, usually adopt high-power pump suction, form large flow gas and gather, and difficult particle to PM10 or PM2.5 gathers rapidly and accurately in the present large traffic sampling system.
Therefore, need work out a kind of new technical scheme and solve the problems referred to above.
The utility model content
In view of this, the utility model is for the disappearance of prior art existence, and its fundamental purpose provides a kind of high-power particle sampler with colliding device, and it is simple in structure, sampling quick and precisely, Effective Raise the sampling quality of particle sampler system.
For achieving the above object, the utility model adopts following technical scheme:
A kind of high-power particle sampler is with colliding device, include a housing and the gas channel that is arranged in the housing, along these gas channel two ends respectively at offering air intake opening and gas outlet on the housing, be provided with sampling membrane in this gas channel, in the shell air inlet place particle retention device is installed, this particle retention device includes the hollow cover body that is covered in aforementioned air intake opening and is positioned at the baffle plate of cover body, this cover body has the air intake that enters for ambient atmos, and this air intake is comprised of some intensive through holes; This baffle plate and air intake keep spacing, and this baffle plate is over against the air intake position and block air intake fully, and formation is communicated with the gap of air intake and air intake opening between this baffle plate lateral margin and the cover body internal face.
As a kind of preferred version, described baffle plate upper surface adheres to goo.
As a kind of preferred version, be provided with arrangement for adjusting height for the controllable register height for baffle plate.
As a kind of preferred version, described arrangement for adjusting height bottom is connected in the center of baffle plate, and stretch out from cover body air intake center the upper end of arrangement for adjusting height.
As a kind of preferred version, described particle retention device is detachable to be installed on the aforementioned housing.
As a kind of preferred version, described housing top is provided with fixed head, and the cover body of aforementioned particles retention device is installed on this fixed head by screw.
As a kind of preferred version, described mesh is strip hole or circular port.
As a kind of preferred version, the gas outlet of described housing is provided with suction pump.
As a kind of preferred version, described sampling membrane below is provided with for the supporting network that supports sampling membrane.
The utility model compared with prior art has obvious advantage and beneficial effect, particularly, as shown from the above technical solution, mainly lie in particle sampler in the conventional art and add the particle retention device with the air intake opening place that collides device, the mesh size by regulating this particle retention device air intake and the distance between baffle plate and the air intake thereof realize baffle plate stopping different numerical value particles, thereby, required particle is collected on the sampling membrane, and its one-piece construction is simple, uses flexibly; And the design of its sticky baffle has effectively avoided larger particles to collide the phenomenon that rebounds on baffle plate, better bulky grain is stopped, has improved sampling efficiency and quality.
For more clearly setting forth architectural feature of the present utility model and effect, come the utility model is elaborated below in conjunction with accompanying drawing and specific embodiment.
Description of drawings
Fig. 1 is the stereo decomposing structural representation of the preferred embodiment of the utility model;
Fig. 2 is the one-piece construction schematic cross-section of the preferred embodiment of the utility model;
Fig. 3 is the stereo decomposing structural representation of another embodiment of the utility model.
The accompanying drawing identifier declaration:
10, particle retention device 11, cover body
111, air intake 112, through hole
12, baffle plate 13, screw
14, height regulating rod 15, nut
20, housing 21, fixed head
31, sampling membrane 32, supporting network
40, suction pump
H: spacing a: gap.
Embodiment
Please refer to Fig. 1 to shown in Figure 3, it has demonstrated the concrete structure of the preferred embodiment of the utility model, and it includes particle retention device 10, housing 20, sampling membrane 31 and suction pump 40.
Be formed with gas channel in this housing 20, respectively at offering air intake opening and gas outlet on the housing 20, be provided with sampling membrane 31 along these gas channel two ends in this gas channel, these sampling membrane 31 belows are provided with supporting network 32; Aforementioned suction pump 40 is arranged at the place, gas outlet of housing 20, in order to form from air intake opening the continual and steady air-flow to the gas outlet direction.
This particle retention device 10 includes hollow cover body 11, baffle plate 12 and height regulating rod 14.This cover body 11 is covered in aforementioned air intake opening place, this cover body 11 has the air intake 111 that supplied gas enters, this air intake 111 is designed to some intensive through holes, and this mesh can be circular port or strip hole (as shown in figures 1 and 3), enters in the cover body 11 to stop the bulky grain thing.These particle retention device 10 detachable being installed on the aforementioned housing 20 particularly, in the present embodiment, are provided with fixed head 21 on the aforementioned housing 20, and the cover body 11 of aforementioned particles retention device 10 is installed on this fixed head 21 by screw 13
This baffle plate 12 lies in upper surface and adheres to goo, and therefore, the upper surface of its viscosity has been avoided the rebound phenomena behind the particle bump, and its blocking effect is better; This baffle plate 12 is positioned at cover body 11, itself and air intake 111 keep spacing H, this baffle plate 12 arranges over against these air intake 111 positions, and baffle plate 12 blocks air intake 111 at least fully, in order to will be barred from through the larger particles that air intake 111 enters on the baffle plate 12, for example, need to gather the particle of PM10, then diameter is barred from the baffle plate 12 greater than 10 microns particle, form the gap a that is communicated with air intake 111 and air intake opening between these baffle plate 12 peripheries and cover body 11 internal faces, diameter is less than or equal to 10 microns particle and then continues mobile with air-flow via this gap and by 31 detentions of aforementioned sample filter membrane; In like manner, when needing to gather the particle of PM2.5, regulate the distance between said baffle 12 and the air intake 111, the mesh size of air intake 111 is also done corresponding design and is got final product.
This height regulating rod 14 is connected in 11 of baffle plate 12 and cover bodies, and it is for the distance H of 111 of controllable register 12 and air intakes, simultaneously, also plays the effect of fixed dam 12; In present embodiment, these height regulating rod 14 bottoms are connected in the center of baffle plate 12, and stretch out from air intake 111 centers the upper end of height regulating rod 14; Height regulating rod 12 can be designed as a screw rod, and baffle plate 12 centers are fixed in this screw rod lower end, and a through hole 112 is offered in air intake 111 centers, and screw rod stretches out from this through hole 112, and its upper end is fixing by nut 16.Certainly, the aforementioned arrangement for adjusting height that arranges for baffle plate 12 also can be other conventional construction, and above-mentioned height regulating rod only explains as an embodiment, is not to impose any restrictions.
And as shown in Figure 1, in the present embodiment, the outer shape of this collision device is roughly square structure, and certainly, its not limited thereto shape also can be designed to other difformity according to actual needs, does not do any restriction at this.
Design focal point of the present utility model is, it mainly lies in, and particle sampler adds the particle retention device with the air intake opening place that collides device in the conventional art, mesh size by regulating this particle retention device air intake and the distance between baffle plate and the air intake thereof, realize baffle plate stopping different numerical value particles, thereby, required particle is collected on the sampling membrane, and its one-piece construction is simple, uses flexibly; And the design of sticky baffle has effectively avoided larger particles to collide the phenomenon that rebounds on baffle plate, better bulky grain is stopped, has improved sampling efficiency and quality.
The above, it only is preferred embodiment of the present utility model, be not that technical scope of the present utility model is imposed any restrictions, so every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment does.
Claims (9)
1. a high-power particle sampler includes a housing and the gas channel that is arranged in the housing with colliding device, respectively at offering air intake opening and gas outlet on the housing, is provided with sampling membrane in this gas channel along these gas channel two ends, it is characterized in that:
In the shell air inlet place particle retention device is installed, this particle retention device includes the hollow cover body that is covered in aforementioned air intake opening and is positioned at the baffle plate of cover body, this cover body has the air intake that enters for ambient atmos, and this air intake is comprised of some intensive through holes; This baffle plate and air intake keep spacing, and this baffle plate is over against the air intake position and block air intake fully, and formation is communicated with the gap of air intake and air intake opening between this baffle plate lateral margin and the cover body internal face.
2. high-power particle sampler according to claim 1 is with colliding device, and it is characterized in that: described baffle plate upper surface adheres to goo.
3. high-power particle sampler according to claim 1 is characterized in that with colliding device: be provided with arrangement for adjusting height for the controllable register height for baffle plate.
4. high-power particle sampler according to claim 3 is with colliding device, and it is characterized in that: described arrangement for adjusting height bottom is connected in the center of baffle plate, and stretch out from cover body air intake center the upper end of arrangement for adjusting height.
5. high-power particle sampler according to claim 1 is with colliding device, and it is characterized in that: described particle retention device is detachable to be installed on the aforementioned housing.
6. high-power particle sampler according to claim 5 is with colliding device, and it is characterized in that: described housing top is provided with fixed head, and the cover body of aforementioned particles retention device is installed on this fixed head by screw.
7. high-power particle sampler according to claim 1 is with colliding device, and it is characterized in that: described mesh is strip hole or circular port.
8. high-power particle sampler according to claim 1 is with colliding device, and it is characterized in that: the gas outlet of described housing is provided with suction pump.
9. high-power particle sampler according to claim 1 is characterized in that with colliding device: described sampling membrane below is provided with for the supporting network that supports sampling membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274465 CN202735139U (en) | 2012-06-12 | 2012-06-12 | Large-power colliding device for sampling particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274465 CN202735139U (en) | 2012-06-12 | 2012-06-12 | Large-power colliding device for sampling particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202735139U true CN202735139U (en) | 2013-02-13 |
Family
ID=47660826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220274465 Expired - Fee Related CN202735139U (en) | 2012-06-12 | 2012-06-12 | Large-power colliding device for sampling particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202735139U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655533A (en) * | 2013-11-18 | 2015-05-27 | 中山欧麦克仪器设备有限公司 | Two-channel automatic particulate monitoring device |
| CN105181402A (en) * | 2015-09-23 | 2015-12-23 | 广东电网有限责任公司电力科学研究院 | Low-concentration smoke dust sampling device and method |
| CN111999221A (en) * | 2020-08-20 | 2020-11-27 | 南华大学 | Impact distance adjustable inertial impactor and dust concentration measuring method |
-
2012
- 2012-06-12 CN CN 201220274465 patent/CN202735139U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655533A (en) * | 2013-11-18 | 2015-05-27 | 中山欧麦克仪器设备有限公司 | Two-channel automatic particulate monitoring device |
| CN105181402A (en) * | 2015-09-23 | 2015-12-23 | 广东电网有限责任公司电力科学研究院 | Low-concentration smoke dust sampling device and method |
| CN111999221A (en) * | 2020-08-20 | 2020-11-27 | 南华大学 | Impact distance adjustable inertial impactor and dust concentration measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20200612 |