CN203214140U

CN203214140U - Catalytic carrier element

Info

Publication number: CN203214140U
Application number: CN 201320149680
Authority: CN
Inventors: 戎永波; 钱旺木; 陈培华; 聂昆
Original assignee: NINGBO KESEN EXHAUST GAS CLEANER MANUFACTURING Co Ltd
Current assignee: NINGBO KESEN EXHAUST GAS CLEANER MANUFACTURING Co Ltd
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2013-09-25
Anticipated expiration: 2023-03-29

Abstract

The utility model relates to a catalytic carrier element. The catalytic carrier element comprises ventilating pipes, wherein the transverse cross section of each ventilating pipe is plum blossom-shaped; each ventilating pipe is bent in a sawtooth shape; the ventilating pipes are arranged into multiple rows and combined in parallel, and are arranged in a catalytic converter housing; the inner wall of each ventilating pipe is provided with a catalytic carrier sheet facing the central line of the ventilating pipe; catalytic oxidant is coated on the inner walls and the outer walls of the ventilating pipes and the catalytic carrier sheets; the catalytic carrier sheets are fixed at the plum blossom-shaped tops, and the catalytic carrier sheets in the longitudinal directions are the same as the bending paths of the ventilating pipes; and the cross section of each ventilating pipe is four-petal plum blossom-shaped. According to the catalytic carrier element, the surface area of the catalytic carrier element is greatly increased, the adhesion amount and adhesion surface area of the catalytic oxidant are increased, the area of contact between tail gas and catalyst is increased, and the catalytic oxidation rate is improved.

Description

The catalytic carrier element

Technical field

The utility model relates to the catalytic carrier element, and it is a kind of being installed in the catalytic converter, is used for adhering to the carrier element of catalytic oxidant, belongs to the catalytic converter field.

Background technique

Along with the harshness day by day of environmental protection requirement, increasing automobile has been installed exhaust gas catalytic converter and oxygen sensor device.It is installed in the engine exhaust pipe, by redox reaction, three kinds of waste gas harmful substance CO, HC and the NOx of engine emission is converted into harmless water, carbon dioxide and nitrogen, so be referred to as ternary (effect) catalytic converter again.

What play a crucial role in catalytic converter is catalytic oxidant, catalytic oxidant is to be attached on the catalytic carrier element, be present in the catalytic converter, the catalytic carrier element affect to a certain extent tail gas in catalytic converter by the degree of catalytic oxidation, traditional catalytic carrier element is generally straight-through tube, tail gas flows out in straight-through tube fast, and oxidation is insufficient, and the area of catalytic carrier element and tail gas is little.

The model utility content

In order to solve the problem of above-mentioned existence, the utility model discloses a kind of catalytic carrier element, this catalytic carrier element has bigger tail gas area of contact, heightens the oxidation catalysis conversion ratio, avoids tail gas pollution.

The catalytic carrier element comprises breathing pipe, and the cross section of described breathing pipe is the plum blossom shape, the bending of breathing pipe zigzag fashion, and many rows combination side by side is arranged in the catalytic converter housing between the breathing pipe.

Described breathing pipe inwall arranges the catalytic carrier sheet towards the breathing pipe center line.

All scribble catalytic oxidant on the inwall of described breathing pipe, outer wall and the catalytic carrier sheet.

Described catalytic carrier sheet is fixed on the top of plum blossom shape, and is vertically consistent with breathing pipe bending path.

The cross section of described breathing pipe is 4 lobe plum blossom shapes.

The utility model, be installed in the catalytic converter, simple in structure, the catalytic oxidation that is conducive to tail gas, tail gas is arranged air money into will be through the oxidation of catalytic converter, and wherein harmful substance CO, HC and NOx is converted into harmless water, carbon dioxide and nitrogen, and the breathing pipe of plum blossom shape has bigger throughput, the catalytic carrier sheet further increases contacting of catalytic oxidant and tail gas, improves the conversion ratio of harmful gas in the tail gas.

Description of drawings

Fig. 1 is cross-sectional structure schematic representation of the present utility model,

Fig. 2 is the view of single breathing pipe,

Fig. 3 is coupled condition schematic representation of the present utility model,

Reference numerals list: 1-breathing pipe, 2-catalytic carrier sheet.

Embodiment

Below in conjunction with the drawings and specific embodiments, further illustrate the utility model.Should understand following embodiment only is used for explanation the utility model and is not used in restriction scope of the present utility model.Need to prove, word " preceding ", " back ", " left side ", " right side ", the "up" and "down" used are described below refer to the direction in the accompanying drawing, word " interior " and " outward " refer to respectively towards or away from the direction of specific features geometrical center.

By reference to the accompanying drawings as seen, this catalytic carrier element comprises breathing pipe 1, and the cross section of described breathing pipe 1 is the plum blossom shape, the bending of breathing pipe 1 zigzag fashion, and many rows combination side by side is arranged in the catalytic converter housing between the breathing pipe 1.The utility model is installed in the interior use of housing of catalytic converter, and vehicle exhaust enters the breathing pipe 1 from the entrance of catalytic converter, tail gas is discharged in the air in breathing pipe 1 and outer outflow, contacts with the inner and outer wall of breathing pipe 1, by catalytic oxidation, be transformed into innocuous gas, the structure of plum blossom shape, the area of contact of increase air and breathing pipe 1 wall, the zigzag fashion bending, make the flow through path of tail gas in breathing pipe 1 become big, prolong the time of tail gas in breathing pipe 1, make oxidation more abundant.

Described breathing pipe 1 inwall setting is towards the catalytic carrier sheet 2 of breathing pipe 1 center line; Described catalytic carrier sheet 2 is fixed on the top of plum blossom shape, and is vertically consistent with breathing pipe 1 bending path.Catalytic carrier sheet 2 does not influence flowing of tail gas, but can increase contacting of catalyzer and tail gas, can increase the amount of the catalytic oxidant on this catalytic carrier element simultaneously, the working life of prolongation catalytic converter.

All scribble catalytic oxidant on the inwall of described breathing pipe 1, outer wall and the catalytic carrier sheet 2.The maximum purpose of catalytic carrier element is exactly the adhesion amount that increases catalytic oxidant, by breathing pipe 1 and catalytic carrier sheet 2 structures, increases adhesion amount and the bond area of catalytic oxidant.

The cross section of described breathing pipe 1 is 4 lobe plum blossom shapes.4 lobe plum blossom shapes are simple in structure, easily manufactured, make in the breathing pipe 1 simultaneously and outer Throughput equilibrium, and gas flow with outer in whole breathing pipe is identical with flow velocity, and the catalytic oxidation degree is identical, avoids the breathing pipe partial failure.

The disclosed technological means of the utility model scheme is not limited only to the disclosed technological means of above-mentioned technological means, also comprises the technological scheme of being made up of above technical characteristics combination in any.

Claims

1. the catalytic carrier element is characterized in that comprising breathing pipe, and the cross section of described breathing pipe is the plum blossom shape, the bending of breathing pipe zigzag fashion, and many rows combination side by side is arranged in the catalytic converter housing between the breathing pipe.

2. catalytic carrier element according to claim 1 is characterized in that described breathing pipe inwall arranges the catalytic carrier sheet towards the breathing pipe center line.

3. catalytic carrier element according to claim 2 is characterized in that all scribbling catalytic oxidant on inwall, outer wall and the catalytic carrier sheet of described breathing pipe.

4. catalytic carrier element according to claim 2 is characterized in that described catalytic carrier sheet is fixed on the top of plum blossom shape, and is vertically consistent with breathing pipe bending path.

5. catalytic carrier element according to claim 1, the cross section that it is characterized in that described breathing pipe is 4 lobe plum blossom shapes.