Silencer and catalytic agent mounting structure thereof
A technology of installation structure and muffler, applied in muffler device, exhaust device, machine/engine, etc., can solve problems such as unreasonable, insufficient exhaust gas absorption, affecting catalyst reaction efficiency, etc., and achieve the improvement of reaction efficiency and cleaning ability. Effect
Inactive Publication Date: 2019-01-22
HESHAN GUOJI NANLIAN MOTORCYCLE IND
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Problems solved by technology
The design of the catalyst installation structure in the existing muffler is unreasonable, so that the catalyst cannot be used effectively, the reaction efficiency of the catalyst is affected, and the absorption of exhaust gas is not thorough enough
Method used
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Embodiment Construction
[0020] See attached Figure 1-2 , the embodiment of the present invention provides a catalyst installation structure, including a reaction tube 100 equipped with a catalyst 600, an intake pipe 200 for introducing exhaust gas into the reaction tube 100, and an exhaust pipe 300 for discharging exhaust gas from the reaction tube 100; the reaction tube A collection pipe 400 that slows down the exhaust flow velocity is provided between the intake end of 100 and the mouth of the intake pipe 200 , and the inner diameter of the collection pipe 400 is larger than that of the intake pipe 200 .
[0021] The connection structure between the existing air inlet pipe 200 and the reaction pipe 100 equipped with the catalyst 600 is unreasonable. In the prior art, the air inlet pipe 200 is directly connected to the reaction pipe 100 equipped with the catalyst by welding, and due to design defects or process defects, the air outlet of the air inlet pipe 200 is too close to the air inlet surface ...
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Abstract
The invention discloses a catalytic agent mounting structure and a silencer with same. The catalytic agent mounting structure comprises a reaction tube, a gas inlet pipe and an exhaust pipe, the reaction tube is filled with a catalytic agent, the gas inlet pipe leads waste gas into the reaction tube, and the exhaust pipe discharges the waste gas out of the reaction tube. A collection tube slowingdown the waste gas is arranged between a gas inlet end of the reaction tube and an opening of the gas inlet pipe, and an inner diameter of the collection tube is larger than that of the gas inlet pipe. The collection tube makes the waste gas flowing through the collection tube to slow down, the waste gas is diffused in the collection tube prior to entering the reaction tube, and accordingly incomplete catalytic agent reaction caused by local waste gas concentration in the catalytic agent due to failure in diffusion of the high-speed waste gas prior to entering the catalytic agent is avoided, and the catalytic agent reaction efficiency is improved. Along with improvement of the catalytic agent reaction efficiency, cleaning performance of the silencer is improved as well, and the increasingly strict national emission standards can be better met.
Description
technical field [0001] The invention relates to an exhaust device of a locomotive engine, in particular to a muffler and a catalyst installation structure thereof. Background technique [0002] The exhaust gas pollutants of motorcycles mainly include harmful gases such as hydrocarbons, nitrogen oxides, and carbon monoxide. Based on the increasingly severe environmental pollution, the exhaust gas problem of motorcycles has received widespread attention from all over the world. my country is also constantly improving motorcycles. Exhaust emission standards. Generally, the exhaust gas of motorcycles will be discharged through the muffler. The muffler is a device that allows airflow to pass through and can effectively organize or weaken the sound energy from spreading outward. In order to purify the exhaust gas, it is a common method to install a catalyst in the muffler. technical means. The design of the installation structure of the catalyst in the existing muffler is unreaso...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F01N13/00F01N3/28F01N1/08
CPCF01N13/007F01N1/085F01N3/2882F01N2590/04
Inventor 刘新华
Owner HESHAN GUOJI NANLIAN MOTORCYCLE IND