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Automobile exhaust PM2.5 detection device and method

A technology of automobile exhaust and detection device, which is applied in measurement device, suspension and porous material analysis, particle suspension analysis, etc., can solve the problem of inconvenient and accurate measurement of automobile exhaust emission PM2. 5 devices, etc., to achieve the effect of simple structure, high practicability, and guaranteed accuracy

Inactive Publication Date: 2015-07-15
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous increase of the number of automobiles, the number of motor vehicles in my country has exceeded 200 million. Motor vehicle exhaust has become the main factor of air pollution such as smog and photochemical smog. People have begun to pay attention to the PM2 caused by automobile exhaust. .5 Pollution issues. Since the detection conditions of PM2.5 concentration in automobile exhaust are different from the general atmospheric environment conditions, automobile exhaust emission has its unique flow characteristics, temperature and humidity characteristics, and special instruments should be used for the detection of exhaust PM2.5 , but the current vehicle exhaust measurement device only measures conventional emissions such as CO and NO, and there is no special device for detecting vehicle exhaust PM2.5, so it cannot conveniently and accurately measure the value of vehicle exhaust PM2.5

Method used

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  • Automobile exhaust PM2.5 detection device and method
  • Automobile exhaust PM2.5 detection device and method
  • Automobile exhaust PM2.5 detection device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0020] to combine figure 1 and figure 2 Explain, a vehicle exhaust PM2.5 detection device, its composition includes: exhaust gas collection box, heating block 7, temperature control switch 21, temperature sensor 19, humidity sensor 20, PM2.5 tester 9 (including sound alarm) , the exhaust gas collection box includes a bottom plate 1, a left side plate 2, a right side plate 3, a front baffle 4, a rear baffle 5 and a top plate 13, and the left side plate 2 and the right side plate 3 are all Connected with the front baffle 4 and the rear baffle 5, the left side panel 2, the right side panel 3, the front baffle 4 and the rear baffle 5 are all It is connected with the bottom plate 1 and the top plate 13; the inner surfaces of the left side plate 2, the right side plate 3 and the rear baffle 5 are all fixedly connected with the heating block 7 by screws 6, The bottom end of the heating block 7 is connected to the wire 8, and the front baffle 4 is also fixedly connected to the PM2...

Embodiment 2

[0022] to combine figure 1 To illustrate, in the automobile exhaust PM2.5 detection device described in Embodiment 1, the said through port 10, the said air inlet 12 and the said through hole of the electric wire 8 are all connected with a sealing ring 22.

Embodiment 3

[0024] to combine figure 1 Illustrate, a kind of automobile exhaust PM2.5 detecting device described in embodiment 1, described exhaust hole 14 is connected with the exhaust hole cover 23 of band sealing ring, and described exhaust hole cover 23 is connected with described exhaust hole by rotating shaft 24 The outer surface of the left side panel 2 of the exhaust gas collection box is connected.

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Abstract

The invention provides an automobile exhaust PM2.5 detection device and method, and relates to the automobile exhaust PM2.5 detection device and method. Due to the fact that no devices special for detecting automobile exhaust PM2.5 exist, the numerical value of PM2.5 of emitted automobile exhaust can not be conveniently or accurately measured. The bottom end of a heating block is connected with a wire. A front baffle is fixedly connected with a PM2.5 measurement instrument through screws. A through opening is formed in the front baffle. A display screen of the PM2.5 measurement instrument is arranged in the through opening. A gas inlet hole is formed in a right side plate. An exhaust pipe is arranged in the gas inlet hole. One end of the exhaust pipe is connected with an exhaust pipe of an automobile. An exhaust hole is formed in a left side plate. A wire through hole is formed in the front baffle. The wire, a probe of a temperature sensor, a probe of a humidity sensor and a probe of a temperature control switch penetrate through the wire through hole. The wire is connected to the temperature control switch. The temperature sensor, the humidity sensor and the temperature control switch are all arranged on the outer surface of the front baffle. The automobile exhaust PM2.5 detection device and method are used for detecting the automobile exhaust PM2.5.

Description

technical field [0001] The invention relates to an automobile exhaust PM2.5 detection device and a detection method. Background technique [0002] With the continuous increase of the number of automobiles, the number of motor vehicles in China has exceeded 200 million. Motor vehicle exhaust has become the main factor of air pollution such as smog and photochemical smog. People have begun to pay attention to the PM2 caused by automobile exhaust. .5 Pollution issues. Since the detection conditions of PM2.5 concentration in automobile exhaust are different from the general atmospheric environment conditions, automobile exhaust emission has its unique flow characteristics, temperature and humidity characteristics, and special instruments should be used for the detection of exhaust PM2.5 , but the current vehicle exhaust measurement device only measures conventional emissions such as CO and NO, and there is no device specially used for detecting vehicle exhaust PM2.5, so the valu...

Claims

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Application Information

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IPC IPC(8): G01N15/06
Inventor 李昕光储江伟霍聪聪史婷陈晓乐王业斌齐鹏
Owner NORTHEAST FORESTRY UNIVERSITY