The invention relates to a vacuum toilet bowl noise reduction method, a noise reduction valve and a vacuum excrement collecting system. The noise reduction method comprises the steps of establishing vacuum before the vacuum toilet bowl discharges sewage; and introducing air into a blow-off pipeline to reduce the vacuum degree of the blow-off pipeline before the vacuum of the vacuum toilet is broken, and reducing the air inlet amount of the toilet during vacuum breaking. The noise reduction valve comprises a valve body, a valve cover, a diaphragm and a breather pipe communicated with the blow-off pipeline, the valve body is fixed on the breather pipe, the valve cover and the diaphragm are fixed on the valve body in a sealing mode, the diaphragm is in contact connection with a pipe opening in the top of the breather pipe, and an air cavity is formed between the diaphragm and the valve cover. The air cavity is configured to adjust internal air pressure to enable the diaphragm to move up and down so as to open a pipe opening of the ventilation pipe to introduce air or seal the pipe opening of the ventilation pipe. Noise generated by vacuum breaking during sewage discharge of the toilet can be effectively reduced, the structure and the method are simple, and the operation is easy.

    本发明涉及一种真空便器降噪方法、降噪阀及真空集便系统,降噪方法包括在真空便器排污前建立真空的步骤;在真空便器破真空前向排污管路引入空气降低排污管路真空度,减少破真空时便器空气进入量的步骤。降噪阀包括阀体、阀盖、膜片及与排污管路连通的通气管,所述阀体固定在通气管上,所述阀盖和膜片密封固定在阀体上,所述膜片与通气管顶部的管口接触连接,所述膜片与阀盖之间形成空气腔,所述空气腔被配置成可调节内部空气压力使膜片上下移动用以打开通气管的管口引入空气或封闭通气管的管口。本发明可以有效降低便器排污时破真空产生的噪声,且结构、方法简单、易于操作。


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    Title :

    Vacuum toilet bowl noise reduction method, noise reduction valve and vacuum excrement collecting system


    Additional title:

    一种真空便器降噪方法、降噪阀及真空集便系统


    Contributors:
    WANG XIANBIN (author) / CHU HONGQUAN (author) / JING SHILING (author) / LI CHANGBIAO (author) / DONG PENGYE (author) / JIA YUCHUAN (author) / XIU YU (author) / ZHI MINGXIN (author)

    Publication date :

    2021-09-10


    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 / F16K VALVES , Ventile



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