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Diesel engine soot particle sampling device

A soot particle and sampling device technology, which is applied in sampling devices, measuring devices, particle and sedimentation analysis, etc., can solve the problems of low efficiency of classification process and single type of sampling particles, so as to increase the types and quantity of sampling and improve sampling efficiency. , Reduce the effect of particle size classification error

Pending Publication Date: 2020-05-12
TIANJIN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

There are many disadvantages in the current soot particle sampling device, such as the single type of sampling particles, low efficiency of sampling and classification process, and in addition, the influence factors such as temperature are not taken into consideration during sampling. In view of this, further improvement of the existing diesel engine soot particle sampling device Improvement to achieve efficient measurement and accurate analysis of diesel soot particles

Method used

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  • Diesel engine soot particle sampling device
  • Diesel engine soot particle sampling device
  • Diesel engine soot particle sampling device

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments do not limit the present invention in any way.

[0025] Such as figure 2 with Figure 4 As shown, a kind of diesel engine soot particle sampling device that the present invention proposes comprises sampling housing 3, and described sampling housing 3 is provided with pressure flow control device, and described pressure flow control device comprises upper differential pressure gauge 7, lower pressure Difference meter 8, flow meter 9 and air pump 10.

[0026] The sampling housing 3 is provided with a multi-stage particulate matter filter screen 4 from top to bottom, and the material of the particulate matter filter screen 4 is F1 coordinate copper mesh square film; during the collection process, usually on each layer of particulate matter filter screen The material will decrease from top to bottom. In order to save ...

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Abstract

The invention discloses a diesel engine soot particle sampling device. The sampling device mainly comprises a sampling shell; one end of the sampling shell is provided with a sampling airflow pipelineand a waste heat utilization airflow pipeline at the cylinder, and a sampling airflow pipe and a waste heat utilization airflow pipeline arranged at the exhaust pipe; the other end of the sampling shell is provided with an upper-lower differential pressure gauge, a flow meter and an air pump; s-shaped heat preservation pipes which are arranged in rows and columns are arranged in the sampling shell; the s-shaped heat preservation pipe is respectively communicated with the cylinder and the exhaust pipe of the diesel engine; and nine layers of particulate matter filter screens are arranged in the sampling shell from large to small, and thus, soot particles with different particle sizes can be sampled and screened. Thus, the sampling types of particles can be increased, the grading device forthe soot particles of the diesel engine can be improved, the sampling and grading efficiency can be improved, soot waste heat of the diesel engine can be fully utilized, energy conservation and environmental protection are achieved, and the accuracy of subsequent particle measurement results is guaranteed.

Description

technical field [0001] The invention relates to a diesel engine soot particle sampling device, in particular to a diesel engine soot particle sampling device with the function of utilizing waste heat. Background technique [0002] With the rapid development of my country's national economy, the number of diesel engines continues to increase, and the environmental problems caused by the pollution of diesel engine exhaust particles are becoming more and more serious. The emission of soot particles will endanger human health, mainly because of the small size of soot particles. Contains strong carcinogens that can enter the lungs of the human body, causing a variety of respiratory diseases and endangering human physical and mental health. Not only that, soot particles are also deposited on the surface of snow and glaciers, enhancing their local melting. It has adverse effects on the global environment, so from the perspective of energy saving and environmental protection, it is ...

Claims

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Application Information

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IPC IPC(8): G01N1/24G01N1/34G01N15/02
CPCG01N1/24G01N1/34G01N15/0272G01N15/0255G01N2015/0288
Inventor 陈梦园宋金瓯贺泳迪
Owner TIANJIN UNIV
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