Winding-structured engine tail gas processing device with metal as carrier

A technology for exhaust gas treatment and metal carrier, applied in engine components, machines/engines, mechanical equipment, etc., can solve the problem of lack of bonding technology between metal sheet substrate and shell, low exhaust gas purification efficiency, and high pressure resistance of engine exhaust system and other problems, to achieve the effects of not easy brittle cracking, strong shock resistance, and reducing exhaust back pressure

Inactive Publication Date: 2006-11-22
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the honeycomb ceramic carrier has the characteristics of small thermal expansion coefficient, good thermal shock resistance, excellent compressive strength and vibration resistance, it still has its inherent disadvantages, that is, the honeycomb ceramic material has the characteristics of anisotropy, and its radial expansion The coefficient is twice that of the lateral expansion coefficient, and the particles are easy to deposit in the air intake channel, so the regeneration process is unevenly heated and prone to thermal shock damage (as shown in Table 1); and there are currently no manufacturers of honeycomb ceramic materials in China, we need It is very expensive to import from abroad, so we choose metal materials as the carrier of the catalyst, which is economical and can avoid some shortcomings of ceramic carriers
[0005] As early as...

Method used

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  • Winding-structured engine tail gas processing device with metal as carrier
  • Winding-structured engine tail gas processing device with metal as carrier
  • Winding-structured engine tail gas processing device with metal as carrier

Examples

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Embodiment 1

[0056] Such as figure 1 , in the catalytic first stage, the gas flows in from the center of the baffle 4 and flows into the second stage 15 along the outer edge of the baffle 18 . Catalytic secondary 15 is to be made of the second catalytic corrugated band 9 and the 3rd catalytic corrugated band 11 that are twisted into S shape with two identical lengths and width, the catalytic corrugated band of catalytic secondary 15 is by means of metal baffle plate 10 (such as figure 2 , 3 , 4) apart, and the ceramic baffles 4, 18 clamp the first catalytic fold belt 5, wear it with a pin 17, and fix it on the inlet cover 3 of the purifier, and the metal baffles 7, 10, 12 are also clamped The second catalytic fold belt and the third catalytic fold belt are fixed on the air outlet cover 13 through pins 17 ′. gas flow path such as figure 1 As shown in 8, in the first stage, the gas enters from the hole in the middle of the baffle plate 4 and flows along the S-shaped fold belt, and finall...

Embodiment 2

[0083] a) Heating metal strip width:

[0084] After the diameter of the intake pipe and the inner cylinder is determined, we can determine the width of the heating metal belt according to the required power and the actual vehicle model. The width of the heating metal belt is D 1 Generally between 120mm-160mm (can be determined according to the actual situation); the metal thickness is h (0.05mm-0.5mm), the height of the metal corrugated is H (0.5-3mm), and the required power is W (2-2.5kw ).

[0085] The cross-sectional area of ​​the intake pipe in this patent is F 1 =6362mm 2 , the diameter R of the inner tube 0 =175mm, metal bandwidth D 1 =122mm, the height H of the corrugated metal band=1.8mm, the thread pitch is M 1

[0086] Then there are: M 1 =F 1 ÷D 1 +H

[0087] So: M 1 =54mm

[0088] Power W=2.1kw, resistivity ρ=1.09 * 10 -6 , the voltage of the car battery is U (usually 24V), the thickness of the metal is h=0.1mm, and the resistance of the metal strip i...

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Abstract

The invention relates to a rotational processor which uses metal as carrier to purify the tail gas of diesel engine and petrol engine. Wherein, it is formed by a frame, a rotational metal carrier, an airflow swirler and a baffle; the front and back ends of frame (1) have inlet cover (3) and outlet cover (13); the inlet cover (3) has an inlet connecting tube (2); the outlet cover (13) has an outlet connecting tube (14); the frame (1) is connected at the middle of ventilate tube of engine via the inlet connecting tube (2) and the outlet connecting tube (14), to form a sealed catalysis reactor space; the rotational metal carrier is divided into the catalysis first level and the catalysis second level (15), while the first level comprises the first catalysis crinkle band (5), and the second level (15) comprises the second catalysis crinkle band and the third catalysis crinkle band (11). The invention has high catalytic efficiency.

Description

technical field [0001] The invention belongs to the field of automobile tail gas treatment, and relates to a spiral structure processor which uses metal as a carrier and can purify the tail gas of diesel and gasoline engines. technical background [0002] With the increase of diesel engines and the strengthening of people's awareness of environmental protection, the problem of air pollution caused by diesel engines has become increasingly prominent. The existing diesel engine exhaust control countermeasure technology includes three aspects: engine technology, post-treatment technology and fuel technology. Among them, post-treatment technology is the most important and key. Post-treatment technology refers to the treatment of engine emissions before entering the atmosphere to further reduce NO x and PM pollutant emission technologies, there are four main post-treatment technologies: oxidation catalyst technology, particulate trap (or particulate filter) technology, NO x Cat...

Claims

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Application Information

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IPC IPC(8): F01N3/28
Inventor 韩炜刘光辉郭淑丽牛晓巍周亮维基·瓦列里波罗金·维克多
Owner JILIN UNIV
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