Inlaid exhaust sound attenuation device used for coal mine underground vehicle
A sound-absorbing device and inserting technology, which is applied in the direction of sound-absorbing devices, exhaust devices, engine components, etc., can solve the problems of high exhaust noise and high kinetic energy value, and achieve the effects of high sound-reducing efficiency, easy processing, and water leakage prevention
Inactive Publication Date: 2016-04-20
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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Problems solved by technology
[0004] In order to solve the technical problem that the gas in the exhaust system enters the exhaust gas treatment box with a high kinetic energy value, resulting in relatively large exhaust noise, the invention provides an exhaust muffler with an insert structure for vehicles in coal mines
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[0016] Such as figure 1 , 3 As shown, an exhaust muffler device with an insert structure for underground vehicles in a coal mine includes an intake muffler cylinder 1, an exhaust muffler cylinder 2, a housing 3 and a butt joint flange 4, an intake muffler cylinder 1 and an exhaust muffler cylinder 2 There are several small holes on the wall of the barrel, the exhaust end of the intake muffler 1 is inserted into the intake end of the exhaust muffler 2, the intake muffler 1 and the exhaust muffler 2 are covered with a casing 3, and the exhaust A cavity is formed between the muffler tube 2 and the inner surface of the housing 3, the inlet end of the intake muffler tube 1 and the outlet end of the exhaust muffler tube 2 are respectively provided with butt joint flanges 4, and the inlet end of the intake muffler tube 1 The gas end and the exhaust end of the muffler cylinder 2 are respectively connected to the intake and exhaust holes 7 of the butt flange 4 , and the two ends of th...
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The invention belongs to the technical field of sound attenuation devices and provides an inlaid exhaust sound attenuation device used for a coal mine underground vehicle, aiming at solving the technical problem that exhaust noise is high because a kinetic energy value is high when gas in an exhaust system enters a waste gas treatment box. The device comprises a gas intake sound attenuation barrel, an exhaust sound attenuation barrel, a shell and counter flanges, wherein a plurality of small holes are formed in the walls of the gas intake sound attenuation barrel and the exhaust sound attenuation barrel; the exhaust end of the gas intake sound attenuation barrel is sleeved into the gas intake end of the exhaust sound attenuation barrel, the shell sleeves outside the gas intake sound attenuation barrel and the exhaust sound attenuation barrel; a cavity is formed between the exhaust sound attenuation barrel and the shell, the gas intake end of the gas intake sound attenuation barrel and the gas outlet end of the exhaust sound attenuation barrel are respectively provided with counter flanges; the gas intake end of the gas intake sound attenuation barrel and the gas outlet end of the exhaust sound attenuation barrel are respectively in butt joint with gas intake and exhaust holes of the counter flanges; and two ends of the shell are respectively in butt joint with the counter flanges. The device disclosed by the invention is simple in structure, easy to machine, and high in sound attenuation efficiency, can meet underground safe production requirements, and can reduce noise pollution during running of the vehicle.
Description
technical field [0001] The invention belongs to the technical field of sound-absorbing devices, and in particular relates to an exhaust sound-absorbing device with an inlaid structure for underground vehicles in coal mines. Background technique [0002] Compared with traditional rail transportation, underground trackless auxiliary rubber tire transportation has been gradually popularized and used in new large and medium-sized coal mines in my country due to its characteristics of large climbing angle, high transportation efficiency and low transportation cost. [0003] The underground trackless auxiliary transport vehicle is mainly powered by a diesel engine, and the exhaust system is treated with explosion-proof treatment. The exhaust process is: engine→exhaust elbow→bellows→exhaust gas treatment box. In actual production, due to the high exhaust pressure, the kinetic energy value of the gas entering the exhaust gas treatment box is high, resulting in high exhaust noise. ...
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IPC IPC(8): F01N13/14F01N1/08
CPCF01N13/141F01N1/082
Inventor 焦高荣马平辉刘希望马长昊原晔桑盛远杨耀君刘继全张星宇侯建国董兴华
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP