CN207096047U - A kind of multichannel flow dividing structure sampler - Google Patents
A kind of multichannel flow dividing structure sampler Download PDFInfo
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- CN207096047U CN207096047U CN201721081584.5U CN201721081584U CN207096047U CN 207096047 U CN207096047 U CN 207096047U CN 201721081584 U CN201721081584 U CN 201721081584U CN 207096047 U CN207096047 U CN 207096047U
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- housing
- particulate matter
- current divider
- impact tube
- flow dividing
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Abstract
It the utility model is related to a kind of multichannel flow dividing structure sampler, belong to particulate matter acquisition technique field, provide a kind of simple in construction, utilize aerodynamic principle, particulate matter is cut to hit, avoid the occurrence of the multichannel flow dividing structure sampler of laying dust, the technical scheme used is including the cutting current divider being connected with sample inlet, the bottom of cutting current divider is connected with multi pass acquisition pipeline, cutter is provided with collection pipeline, filter membrane component, flow controller and sampling pump, current divider is cut mainly by housing, impact tube, crash panel and isocon are formed, crash panel is installed in housing, impact tube is installed at the top of housing, the bottom of housing is provided with multiple isocons, impact tube and isocon all extend to enclosure interior；The utility model is widely used in the sampling of particulate matter.
Description
Technical field
A kind of multichannel flow dividing structure sampler is the utility model is related to, belongs to particulate matter acquisition technique field.
Background technology
Most accurate method is generally acknowledged in the monitoring of environmental particulate in air concentration whole world, is exactly to big with particle sampler
Gas is sampled, and gathers atmospheric sample at a constant flow rate, and for sample gas after by filter membrane, particulate matter is collected into filter membrane
On, the weightening to filter membrane before and after collection, divided by the gas volume gathered just can obtain the concentration of particulate matter.The grain of particle concentration
The cutters such as TSP, PM10, PM2.5 that footpath is matched by sample inlet determine.
Most particle samplers is all single-pass configuration in the whole world, after cutter cuts, directly
Filter membrane is connected to by vertical duct, does not have laying dust phenomenon theoretically.With the further investigation analyzed particulate matter, it is desirable to homologous
After sampling, the sample of collection is analyzed, thus needs multi-channel particle sampler to carry out the collection of sample；Typically by
Sample inlet, cutter, current divider, connecting line, sampling membrane, pump, controller composition, in practical work process, shunting
Device and the easy laying dust of connecting line, so as to cause data value relatively low.
Utility model content
To solve technical problem existing for prior art, the utility model provides a kind of simple in construction, is moved using air
Mechanics principle, particulate matter is cut to hit, avoid the occurrence of the multichannel flow dividing structure sampler of laying dust.
To achieve the above object, technical scheme is a kind of multichannel flow dividing structure sampler used by the utility model,
Including the cutting current divider being connected with sample inlet, the bottom of the cutting current divider is connected with multi pass acquisition pipeline, described
Be provided with cutter, filter membrane component, flow controller and sampling pump on collection pipeline, the cutting current divider mainly by housing,
Impact tube, crash panel and isocon are formed, and are provided with crash panel in the housing, impact tube is provided with the top of the housing,
The bottom of the housing is provided with multiple isocons, and the impact tube and isocon all extend to enclosure interior.
Preferably, the impact tube and isocon are each perpendicular to crash panel setting.
Preferably, water leg is provided with the crash panel, the bottom of the water leg is provided with delivery port, the water outlet
Outlet pipe is installed on mouthful, ponding bottle is connected with the outlet pipe.
Compared with prior art, the utility model has following technique effect：The utility model eliminates independent shunting
Device structure, the particulate matter that will be cut by cutter, directly shunted by the isocon evenly distributed, can thus passed through
Vertical connecting line is connected to filter membrane, thoroughly solves laying dust caused by the current divider and dog leg piping of multi-channel sampling device；
The homologous sampling request of sample is ensure that simultaneously, improves acquisition precision.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation that current divider is cut in the utility model.
Fig. 3 is the principle schematic that current divider is cut in the utility model.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the utility model is further elaborated.It is it should be appreciated that described herein specific real
Example is applied only to explain the utility model, is not used to limit the utility model.
As shown in Figure 1 and Figure 2, a kind of multichannel flow dividing structure sampler, including the cutting being connected with sample inlet 1 point
Device 2 is flowed, the bottom of cutting current divider 2 is connected with multi pass acquisition pipeline 3, gathers and is provided with cutter 4, filter membrane component on pipeline 3
5th, flow controller 7 and sampling pump 8, filter membrane 6 wherein built in filter membrane component, flow controller 7 and sampling pump 8 are and master control system
11 are connected, and the meteorological module 9 for detecting real-time weather information is also associated with master control system 11, for detecting air in real time
The Temperature and Humidity module 10 of humiture, for positioning the d GPS locating module 12 of real-time position information and being detected for filter membrane
RFID module 13, cutting current divider 2 be mainly made up of housing 15, impact tube 14, crash panel 16 and isocon 17, in housing 15
Crash panel 16 is installed, the top of housing 15 is provided with impact tube 14, and the bottom of housing 15 is provided with multiple isocons 17, hits
Pipe 14 and isocon 17 are all extended to inside housing 15.
In the utility model cutter can be other cutters such as TSP, PM10, PM5, PM2.5, PM1.0 either
The cutter of the overlapping combinations such as PM10, PM5, PM2.5, PM1.0.When in use, cutting current divider enters to the particulate matter collected
Row cutting, shunting, it mainly utilizes aerodynamic principle, particulate matter is cut in a manner of shock.Different size particle diameter
Particulate matter flowing when inertia be it is different, hit Bottomhole pressure gas and different size particulate matter, due to
The inertia of bulky grain is bigger, and when crash panel is run into, big particulate matter is just cut, and is deposited on crash panel,
And small particulate matter continues to follow gas to flow to next stage.Change gas flow rate and crash panel and impact tube height, with regard to that can cut
Slice off different size of, the particulate matter of equivalent aerodynamic diameter.Towards the gas and particulate matter of next stage after cutting, then by
Isocon with arrangement carries out uniform divided flows, so as to obtain the particulate matter of homologous multi-channel sampling.Thus can be by hanging down
Straight connecting line is connected to filter membrane, thoroughly solves laying dust caused by the current divider and dog leg piping of multi-channel sampling device；Together
When ensure that the homologous sampling request of sample, improve accuracy of detection.
When carrying out particulate matter cutting shunting, it is necessary to calculate particulate matter incising control d, wherein particulate matter cuts grain
Footpath d theoretical formula is：, in formula, k is dimensionless factor,For air force viscosity coefficient, D is that impact tube is straight
Footpath,For particulate matter quality concentration, C is Cunningham's skink slip-stream index, and U is impact tube flow velocity.According to above-mentioned formula, conjunction can determine
The particulate matter incising control of reason, improve accuracy of detection.
Set in addition, impact tube 14 and isocon 17 are each perpendicular to crash panel 16, cutting shunting effect can be greatly improved.
Water leg 19 is provided with crash panel 16, the bottom of water leg 19 is provided with delivery port, outlet pipe 20 is provided with delivery port, is gone out
Ponding bottle 18 is connected with water pipe 20.Water leg is used to collect particulate matter reclaimed water, then enters ponding bottle by outlet pipe, uses
It is more convenient.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., all should be wrapped in the utility model model
In enclosing.
Claims (3)
1. a kind of multichannel flow dividing structure sampler, including the cutting current divider being connected with sample inlet, the cutting shunting
The bottom of device is connected with multi pass acquisition pipeline, is provided with cutter, filter membrane component, flow controller on the collection pipeline and adopts
Sample pump, it is characterised in that：The cutting current divider is mainly made up of housing, impact tube, crash panel and isocon, in the housing
Crash panel is installed, impact tube is installed, the bottom of the housing is provided with multiple isocons, described to hit at the top of the housing
Hit pipe and isocon all extends to enclosure interior.
A kind of 2. multichannel flow dividing structure sampler according to claim 1, it is characterised in that：The impact tube and shunting
Pipe is each perpendicular to crash panel setting.
A kind of 3. multichannel flow dividing structure sampler according to claim 1, it is characterised in that：Set on the crash panel
There is water leg, the bottom of the water leg is provided with delivery port, outlet pipe is provided with the delivery port, is connected on the outlet pipe
It is connected to ponding bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721081584.5U CN207096047U (en) | 2017-08-28 | 2017-08-28 | A kind of multichannel flow dividing structure sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721081584.5U CN207096047U (en) | 2017-08-28 | 2017-08-28 | A kind of multichannel flow dividing structure sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207096047U true CN207096047U (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721081584.5U Active CN207096047U (en) | 2017-08-28 | 2017-08-28 | A kind of multichannel flow dividing structure sampler |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141993A (en) * | 2018-10-31 | 2019-01-04 | 江苏迈尚环保科技有限公司 | A kind of multichannel shunt air particle cutter and its application method |
| WO2019041963A1 (en) * | 2017-08-28 | 2019-03-07 | 太原海纳辰科仪器仪表有限公司 | Multichannel sampler having distributing structure |
-
2017
- 2017-08-28 CN CN201721081584.5U patent/CN207096047U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019041963A1 (en) * | 2017-08-28 | 2019-03-07 | 太原海纳辰科仪器仪表有限公司 | Multichannel sampler having distributing structure |
| GB2573590A (en) * | 2017-08-28 | 2019-11-13 | Taiyuan Hainachenke Instr And Meter Co Ltd | Multichannel sampler having distributing structure |
| CN109141993A (en) * | 2018-10-31 | 2019-01-04 | 江苏迈尚环保科技有限公司 | A kind of multichannel shunt air particle cutter and its application method |
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