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Purification device used for motor vehicle exhaust detection line as well as working method thereof

A tail gas detection and purification device technology, which is applied in the direction of measuring devices, chemical instruments and methods, separation methods, etc., can solve the problems of polluted environment, health impact of staff, poor purification effect, etc.

Pending Publication Date: 2019-09-13
张化绪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing automobile detection line, when detecting automobile exhaust, a probe is placed at the exhaust outlet of the automobile; when detecting gasoline vehicles, the double-idle method or simple transient working condition method is adopted; when detecting diesel vehicles, Free acceleration method or loading deceleration method is adopted; the exhaust gas after detection is directly discharged into the air, which will pollute the environment and affect the health of workers on the detection line
Among the existing air purification devices, there are few exhaust gas purification devices that can be applied to the detection line, and the purification effect is poor

Method used

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  • Purification device used for motor vehicle exhaust detection line as well as working method thereof
  • Purification device used for motor vehicle exhaust detection line as well as working method thereof
  • Purification device used for motor vehicle exhaust detection line as well as working method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Referring to the accompanying drawings, a purification device for a motor vehicle exhaust detection line is characterized in that it includes a suction fan 1, a self-suction fan 1, and pipelines are connected with a fireproof dust-proof box 2, a heating box 3, and an exhaust gas purification treatment assembly in turn. Connect the high-pressure ventilator 4; on the pipelines before and after the exhaust gas purification treatment component, temperature sensors and pressure sensors are respectively installed, and the temperature and pressure are displayed in real time as the basis for judging the working status of the purification device.

[0029] The exhaust gas purification treatment component is a three-way catalytic converter 5 for gasoline vehicles, a diesel oxidation catalytic converter (DOC) 6 , a diesel particulate filter (DPF) 7 , and a selective catalytic reduction aftertreatment device (SCR) 8 connected in sequence. The Diesel Particulate Filter (DPF) traps soo...

Embodiment 2

[0037] On the basis of the structure of Example 1, the structural difference from Example 1 is: the diesel oxidation catalyst (DOC), diesel particulate filter (DPF), selective catalytic reduction post-treatment connected in sequence to the exhaust gas purification treatment assembly device (SCR).

Embodiment 3

[0039] Based on the structure of Example 1, the structural difference from Example 1 is that the exhaust gas purification treatment component is a three-way catalytic converter for gasoline vehicles.

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Abstract

The invention provides a purification device used for a motor vehicle exhaust detection line. The purification device used for the motor vehicle exhaust detection line comprises an inhalation fan anda self-inhalation fan, a fireproof dustproof box, a heating box and an exhaust purification treatment component are sequentially connected by virtue of a pipeline, and then a high pressure ventilatoris connected; and on pipelines in front of and behind the exhaust purification treatment component, a temperature sensor and a pressure sensor are respectively mounted. Meanwhile, the invention also provides a working method of the purification device used for the motor vehicle exhaust detection line. The purification device provided by the invention treats automobile exhaust produced in the motorvehicle exhaust detection line, so as to enable the automobile exhaust to meet environmental requirements. The temperature sensor and the pressure sensor are used cooperatively with an automobile exhaust remote monitoring system, online remote monitoring on exhaust discharged in the detection line can be realized, monitoring information is sent by virtue of a GPRS network, and related departmentsand a control room can conveniently grasp equipment running condition information. When the purification device is connected and used with a particulate matter sensor, working condition is displayedin real time by determining particulate matters in purified exhaust as well as related data.

Description

technical field [0001] The invention belongs to the technical field of tail gas treatment equipment, in particular to a purification device for a motor vehicle tail gas detection line and a working method thereof. Background technique [0002] In the existing automobile detection line, when detecting automobile exhaust, a probe is placed at the exhaust outlet of the automobile; when detecting gasoline vehicles, the double-idle speed method or simple transient working condition method is adopted; when detecting diesel vehicles, The free acceleration method or the loading deceleration method is adopted; the exhaust gas after the detection is directly discharged into the air, which will pollute the environment and affect the health of the staff working on the detection line. Among the existing air purification devices, there are few exhaust gas purification devices that can be applied to the detection line, and the purification effect is relatively poor. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N15/00B01D53/94B01D53/56
CPCG01N33/0009G01N15/00B01D53/94B01D53/56Y02A50/20Y02T10/12
Inventor 张化绪
Owner 张化绪
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