Vehicle multi-point atmospheric particulate sampling device
A technology of atmospheric particles and sampling devices, applied in the field of comprehensive observation vehicles, can solve the problems of not being able to truly reflect the comprehensive value and single sampling value, and achieve the effect of improving accuracy and reducing errors
Active Publication Date: 2018-11-30
合肥中科光博量子科技有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a vehicle-mounted multi-point atmospheric particle sampling device, which solves the problem that the single sampling value cannot truly reflect the local comprehensive value
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Embodiment 1
[0020] Such as figure 1 As shown, a vehicle-mounted multi-point atmospheric particle sampling device includes a sampling unit 1, an air pump 5, and an adsorption chamber 2. The adsorption chamber 2 is arranged below the sampling unit 1 and receives the atmosphere separated by the sampling tube. The adsorption chamber 2 The exhaust port is connected to the suction pump 5, and a filter membrane is arranged in the adsorption chamber 2 along its cross-sectional direction. It is characterized in that the sampling part 1 includes a plurality of sampling tubes and a delivery tube, and the plurality of sampling tubes are all connected to the delivery tube. And evenly distributed on both sides of the delivery pipe, a gas collection chamber 3 is also arranged between the sampler and the adsorption chamber 2, the gas collection chamber 3 is a multi-layer stepped annular hollow elastic body and along the diameter of the bottom ring body of the gas collection chamber 3 There are two inlet ...
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The invention discloses a vehicle multi-point atmospheric particulate sampling device. The vehicle multi-point atmospheric particulate sampling device comprises a sampling part, an air suction pump and an adsorption chamber, wherein the adsorption chamber is arranged below the sampling part and receives the atmosphere separated by sampling tubes, an exhaust port of the adsorption chamber is connected to the air suction pump, a filter membrane is arranged in the adsorption chamber along a cross section, the sampling part comprises a plurality of sampling tubes and a conveying tube, and the plurality of sampling tubes are connected with the conveying tube and are evenly distributed on both sides of the conveying tube. a gas collecting chamber is further disposed between a sampler and the adsorption chamber, and the gas collecting chamber is a multi-layered stepped annular hollow elastic body and two inlet pipes are oppositely opened along a radial direction of the lowermost annular bodyof the gas collecting chamber, the multi-layer step ring diameter of the gas collecting chamber is gradually decreased from bottom to top, and the gas of the sampler flows out of the pipe and is simultaneously and respectively connected to the two c, an exhaust pipe is arranged at the gas collecting chamber, and is connected to the air suction pump. The device can reduce the error of local measurement and improve the precision by the improvement of the structure.
Description
technical field [0001] The invention relates to the field of comprehensive observation vehicles, in particular to a vehicle-mounted multi-point atmospheric particle sampling device. Background technique [0002] Atmospheric particulate matter is the main carrier of direct pollutants in the atmospheric environment or chemical pollutants and microbial pollutants in the atmospheric environment, and plays an important role in the monitoring of atmospheric or air environmental quality and pollution control and governance. There are many types of atmospheric particulate matter, and atmospheric particulate matter is usually divided into four categories according to particle size. In order to understand the particulate matter content in the atmosphere, an atmospheric particulate matter sampling device is specially set up. The existing atmospheric particulate matter sampling device includes a total suspended particle sampling tube, an inhalable dust sampling tube, a particle classif...
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IPC IPC(8): G01N1/22
CPCG01N1/2214G01N1/2273
Inventor 张帅施奇兵朱宝平徐纬煜史元洋
Owner 合肥中科光博量子科技有限公司