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Gasoline vehicle tail gas discharging pollutant total quantity measuring equipment and method thereof

A technology for exhaust emission and measurement equipment, which is applied in measurement devices, specific gravity measurement, engine testing, etc., can solve the problems of high price, complex measurement equipment, long test and test time, etc., so as to reduce equipment cost, reduce price and simplify equipment. The effect of configuration

Inactive Publication Date: 2007-01-03
北京金铠星科技有限公司
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Problems solved by technology

[0007] From the above analysis, it can be seen that the CVS constant volume sampling method is characterized by a high degree of dilution of automobile exhaust, requires a large volume of air bags, and has high requirements for the accuracy of the sampling system, gas analyzer and constant flow generator. Therefore, the measurement The equipment is complicated, the price is extremely expensive, and the test time is long. Only centralized sampling and analysis can be performed, and exhaust emission data cannot be measured in real time every second. It is usually only used for type certification tests for new vehicles, so it cannot be promoted to the automotive testing market. Emission testing of in-use vehicles

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  • Gasoline vehicle tail gas discharging pollutant total quantity measuring equipment and method thereof
  • Gasoline vehicle tail gas discharging pollutant total quantity measuring equipment and method thereof

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Embodiment Construction

[0033] see figure 1 According to the present invention, the measuring device for the total amount of pollutants discharged from gasoline vehicle tail gas includes a tail gas dilution measurement part and an original tail gas concentration measurement part. The exhaust gas dilution flow measurement part includes a dilution hose 14 connected to a fan 13, the exhaust pipe of the fan 13 is connected to a vortex flowmeter 9, and the flowmeter is equipped with a temperature sensor 12, a pressure sensor 11 and a zirconia sensor 10.

[0034] The free end of the dilution hose 14 has a trumpet-shaped air inlet.

[0035] When in use, the dilution hose 14 is set on the end of the automobile exhaust pipe 15, and the air enters from the air inlet. After being measured by the street flow meter, it is finally discharged into the atmosphere C.

[0036] The original tail gas concentration measurement part includes a sampling hose 1 and a gas analyzer 7 connected thereto, between which a gas-...

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Abstract

A vehicle gas contamination amount measure equipment and method relates to gas diluted flux measure part and originality gas concentration measure part. The former relates to diluted tube connecting fan engine and its exhaust pipe having vortex flow meter which having temperature sensor, pressure sensor and zirconia sensor. The latter relates to sampling tube and gas analysis meter which connecting with the tube, and separator for gas and water, condenser, filter, electromagnetic valve and sampling pump. It measures the flux of the gas, temperature, pressure, concentration of oxygen and the concentration of the each contamination to the originality gas and accounts all of them. The equipment and method can measure the contamination of gas at real time and greatly predigest the station and cost to be used for the gas let test.

Description

technical field [0001] The invention relates to a measuring device and a method, in particular to a measuring device and a method for the total amount of pollutants discharged from gasoline vehicle tail gas. Background technique [0002] At present, the detection equipment for the measurement of gasoline vehicle exhaust pollutants can be divided into concentration method detection equipment and quality method detection equipment according to the different measurement results. The measurement result of the concentration method equipment is the emission concentration of each component pollutant (mainly carbon monoxide CO, hydrocarbon HC and nitrogen oxide NOx) in the exhaust gas. The core equipment is a gas analyzer, while the measurement result of the mass method equipment is the exhaust gas The emission of each component pollutant in grams per kilometer, that is, the total emission. The core equipment is to add a volume flow measurement device on the basis of a gas analyzer....

Claims

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Application Information

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IPC IPC(8): G01N9/36G01M15/00G01N33/00
Inventor 吴冰刘昭度姚圣卓胡剑威林静涛
Owner 北京金铠星科技有限公司
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