The invention discloses a silencing structure of an air supply duct of a railway vehicle. The silencing structure comprises an air inlet flange, and the outer wall of the bottom end of the air inlet flange is sleeved with a flexible connecting pipe. The outer wall of the bottom end of the flexible connecting pipe is sleeved with a connecting flange; the outer wall of the bottom end of the connecting flange is sleeved with air duct pipes; the number of the air duct pipes is at least two, the opposite ends of every two air duct pipes are fixed through the connecting flange, the outer walls of the bottom ends of the air duct pipes are connected with connecting bent pipes, pressing flanges are arranged at the ends of the connecting bent pipes, and the connecting bent pipes are fixedly connected with air outlet pipes through the pressing flanges. The pipe wall of the air pipe lining plate is made of a porous sound absorption material; along with the extension of the pipeline, the silencingeffect is more obvious; a sleeve connecting type structure is adopted, bolts are arranged at the connecting positions for tight fixation; C-shaped grooves are formed in the connecting positions for clamping fixation; the air speed of the air duct pipe is controlled through reducing of the two ends; and a cavity is formed between a reducing hopper and the air duct pipe body, so that the sound insulation effect is achieved.

    本发明公开了一种轨道车辆送风道消声结构,包括进风法兰,所述进风法兰的底端外壁套接有软接管,且软接管的底端外壁套接有连接法兰,所述连接法兰的底端外壁套接有风道管,且风道管的数量至少为两个,两两所述风道管的相对一端之间通过连接法兰相固定,且风道管的底端外壁连接有连接弯管,所述连接弯管的端部设有压合法兰,且连接弯管通过压合法兰固定连接有出风管。本发明中风管内衬板材其管壁是一种多孔性吸声材料,随着管道的延长,消音效果更为明显,采用套管连接式结构,在连接处设有螺栓紧密固定,连接处C型槽卡接固定,风道管通过两端变径,将风速控制,变径斗和风道管管体之间形成空腔,起到隔音效果。


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    Title :

    Silencing structure of an air supply duct of railway vehicle


    Additional title:

    一种轨道车辆送风道消声结构


    Contributors:
    XU CHAO (author)

    Publication date :

    2020-08-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / B61C Lokomotiven , LOCOMOTIVES / F24F Klimatisierung , AIR-CONDITIONING



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