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A negative pressure purification device for automobile exhaust gas

A technology for automobile exhaust and purification devices, which is applied to exhaust devices, mufflers, gas passages, etc., can solve problems such as blockage, pollution, and obstruction of automobile exhaust purification treatment devices.

Active Publication Date: 2021-06-04
徐子洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcoming is that during the purification process of automobile exhaust, due to the treatment of particles in exhaust gas and exhaust gas by purification devices such as pre-filter plates, honeycomb ceramic purification devices and filter elements, the smoothness of exhaust gas will lead to purification efficiency over time. It will eventually lead to environmental pollution and even blockage of the exhaust gas purification treatment device, and there will be a large exhaust resistance after the purification treatment of the multi-stage tailpipe, which will greatly hinder the purification treatment of automobile exhaust gas.

Method used

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  • A negative pressure purification device for automobile exhaust gas
  • A negative pressure purification device for automobile exhaust gas
  • A negative pressure purification device for automobile exhaust gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Two semi-cylindrical negative pressure wing tubes 2 are fixed with two semi-cylindrical negative pressure wing tubes 2 symmetrically threaded on both sides at the tail end of the automobile exhaust exhaust pipe 1. One end is a closed end, and the axis of negative pressure wing tube 2 is perpendicular to the axis of automobile exhaust pipe 1. The inner diameter of negative pressure wing pipe 2 is 6cm, and the inner diameter of automobile exhaust pipe 1 is 6cm. There are two exhaust holes 3 along the axial direction on the semicircular arc surface. The diameter of the exhaust holes 3 is 3 cm. Air hole 7, the diameter of air intake hole 7 is 3cm, and the axis of exhaust hole 3 and the axis of automobile exhaust exhaust pipe 1 form an angle of 0 °. The upper end of the exhaust hole 3 is equipped with a detachable fixing frame 5, and the upper end of the fixing frame 5 is screwed with four fixing nuts 6, and the adjacent fixing nuts 6 are perpendicular to each other, and fib...

Embodiment 2

[0019] Two semi-cylindrical negative pressure wing tubes 2 are fixed with two semi-cylindrical negative pressure wing tubes 2 symmetrically threaded on both sides at the tail end of the automobile exhaust exhaust pipe 1. One end is a closed end, and the axis of negative pressure wing tube 2 is perpendicular to the axis of automobile exhaust pipe 1. The inner diameter of negative pressure wing pipe 2 is 6cm, and the inner diameter of automobile exhaust pipe 1 is 6cm. There are four exhaust holes 3 along the axial direction on the semi-circular arc surface. The diameter of the exhaust holes 3 is 3 cm. Air hole 7, the diameter of air intake hole 7 is 3cm, and the axis of exhaust hole 3 and the axis of automobile exhaust exhaust pipe 1 form an angle of 0 °. The upper end of the exhaust hole 3 is equipped with a detachable fixing frame 5, and the upper end of the fixing frame 5 is screwed with four fixing nuts 6, and the adjacent fixing nuts 6 are perpendicular to each other, and f...

Embodiment 3

[0021]Two semi-cylindrical negative pressure wing tubes 2 are fixed with two semi-cylindrical negative pressure wing tubes 2 symmetrically threaded on both sides at the tail end of the automobile exhaust exhaust pipe 1. One end is a closed end, and the axis of negative pressure wing tube 2 is perpendicular to the axis of automobile exhaust pipe 1. The inner diameter of negative pressure wing pipe 2 is 6cm, and the inner diameter of automobile exhaust pipe 1 is 6cm. There are 6 exhaust holes 3 along the axial direction on the semi-circular arc surface. The diameter of the exhaust holes 3 is 3 cm. Air hole 7, the diameter of air intake hole 7 is 3cm, and the axis of exhaust hole 3 and the axis of automobile exhaust exhaust pipe 1 form an angle of 0 °. The upper end of the exhaust hole 3 is equipped with a detachable fixing frame 5, and the upper end of the fixing frame 5 is screwed with four fixing nuts 6, and the adjacent fixing nuts 6 are perpendicular to each other, and fiber...

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Abstract

The invention relates to a negative pressure purification device for automobile tail gas, which belongs to the technical field of environmental protection. The purification device is composed of an automobile exhaust pipe and a negative pressure wing tube. Two semi-cylindrical negative pressure wing tubes are symmetrically arranged on both sides of the tail end of the automobile exhaust pipe. For a plane parallel to the ground, a set of exhaust holes is provided on the semi-circular surface of the negative pressure wing tube. A fiber filter layer is arranged at the exhaust hole, and a set of air intake holes are set on the lower end of the negative pressure wing tube along the axial direction. hole. When the car is running, due to the difference in the shape of the upper and lower end surfaces of the negative pressure wing tube, the air velocity at the upper surface of the negative pressure wing tube is greater than the air velocity at the bottom of the negative pressure wing tube, thereby generating negative pressure and diverting the exhaust gas of the vehicle into the negative pressure wing tube through the fiber filter layer The automobile exhaust gas is processed, which reduces the pollution of the automobile exhaust gas to the environment and prevents the blockage of the purification device.

Description

technical field [0001] The invention relates to a negative pressure purification device for automobile tail gas, which belongs to the technical field of environmental protection. Background technique [0002] Automobile exhaust is the exhaust gas generated during the use of automobiles. It contains hundreds of different compounds. The pollutants include solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead and sulfur oxides. Automobile exhaust has a great impact on the air. The quality is very harmful, especially as the number of automobiles increases, the emission of automobile exhaust will also increase, and the pollution to the environment will also increase. Therefore, it is very necessary to purify the automobile exhaust. Conventional automobile exhaust purification treatment method is to add multi-stage exhaust gas purification treatment device in the exhaust pipe of the exhaust gas generated by the automobile. The automobile e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N13/08F01N3/022
CPCF01N3/0226F01N13/08F01N2260/06F01N2470/00
Inventor 徐子洋
Owner 徐子洋