Broadband and efficient micro-perforated pipe muffler

• Main Authors: LIU ZHI'EN, LU CHIHUA, XIE LIPING, GUO JIN, YANG JIAN, DU SONGZE, CHEN WAN
• Format: Patent
• Language: Chinese; English
• Published: 17.04.2018
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention puts forward a broadband and efficient micro-perforated pipe muffler. The broadband and efficient micro-perforated pipe muffler comprises a micro-perforated pipe, an outer barrel body, afront separation plate, a rear separation plate, a front sleeve and a rear sleeve. The micro-perforated pipe and the outer barrel body are coaxially sleeved, the air inlet end and the air exhaust endof the micro-perforated pipe are in seal connection with the two ends of the outer barrel body through a front end cover and a rear end cover respectively, the front separation plate and the rear separation plate are arranged on the micro-perforated pipe in a sleeving manner at an interval, and the outer edge of the front separation plate and the outer edge of the rear separation plate are connected with the inner wall of the outer barrel body, forming a front cavity, a middle cavity and a rear cavity. The micro-perforated pipe is sleeved with the front sleeve and the rear sleeve, the front end and the rear end of the