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Single Channel radial Drum type device for filtering small particles in tail gas of diesel cars

A filtering device, a cylindrical technology, applied in the direction of exhaust devices, mufflers, engine components, etc., can solve the problems of excessive exhaust back pressure rise, reduction of effective volume of filter body, blockage, etc., and achieve the goal of reducing environmental pollution Effect

Inactive Publication Date: 2003-07-23
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This causes a large amount of soot particles to accumulate at the inlet end of the filter body, causing blockage
The direct result of this is that the exhaust back pressure rises too fast, and regeneration has to be performed, which reduces the effective volume of the entire filter body on the one hand, and actually only uses a part of the front end of the filter body; on the other hand, frequent regeneration The process will shorten the service life of the filter body and increase energy consumption

Method used

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  • Single Channel radial Drum type device for filtering small particles in tail gas of diesel cars
  • Single Channel radial Drum type device for filtering small particles in tail gas of diesel cars

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Embodiment Construction

[0010] figure 1 Shown is a schematic diagram of the structure of a single-channel radial cylindrical diesel vehicle exhaust particulate filter device. The device is composed of an inlet cone 1 and an exhaust cone 8 connected to the two ends of the shell 4 and a filter layer installed in the shell. The coarse filter plate 5 is outside, and the fine filter plate 3 is concentrically fixed on the rear packaging circle. On the disc 7, the other end is fixed by the front encapsulation disc 9 in the position of the two-layer stencil, and seals the central channel opening at the air inlet end, and the outer circle 5 of the rear encapsulation disc and the exhaust port end of the shell 4 are connected together. The engine exhaust enters the outer channel 2 from the cone 1, and enters the fine filter plate 3 from the coarse filter plate 5, and is filtered by a metal composite plate or other types of composite filter materials. The composite filter material includes a composite wire mesh ...

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Abstract

This invention discloses channel radial trunk diesel vehicle tail gas particle filter device of environmental devices composed of rough filter screen and fine filter screen mounted on the case package plate. When the gas is exhausted from the engine enters from the inlet and goes out through outlet, the tail gas particles are captured by the filter screen to be purified to prevent it from pollution to environment.

Description

Technical field: [0001] The invention belongs to the scope of environmental protection equipment, in particular to a single-channel radial cylindrical diesel vehicle exhaust particle filter device for diesel vehicle exhaust purification. Background technique [0002] Although the diesel engine came out later than the gasoline engine, it is widely used in various power devices due to its good power, economy and durability. However, the pollution caused by diesel exhaust particulate emissions has become a bottleneck restricting the further application of diesel engines. At present, diesel particulate filter (hereinafter referred to as DPF) is recognized as an effective after-treatment technology. middle. When the particles accumulate to a certain extent, they are removed by combustion and other means so that the filter can continue to be used, which is the so-called regeneration. [0003] The most widely used and researched filter structure at present is the wall flow struct...

Claims

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Application Information

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IPC IPC(8): F01N3/021
Inventor 陈华鹏吴晓东翁端
Owner TSINGHUA UNIV
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