公开(公告)号：US20140319389A1

公开(公告)日：2014-10-30

申请号：US14222892

申请日：2014-03-24

Applicant: Dieter J. Rief ,  Hans Rainer Schlitzer ,  Manuela Rief

Inventor： Dieter J. Rief ,  Hans Rainer Schlitzer ,  Manuela Rief

IPC: E04H4/16 ,  F16K31/122

CPC classification number: E04H4/1645 ,  F16K24/06 ,  F16K31/1221 ,  Y10T137/2567 ,  Y10T137/2572 ,  Y10T137/4252 ,  Y10T137/773

Abstract: An automatic vacuum-relief apparatus for liquid suction systems includes a vessel defining a chamber filled with liquid in communication with a liquid flow line, a rotary shaft extending through the chamber to support a valve device adjacent to the liquid flow line and to move the valve device to open a relief-air flow channel to relieve increased suction caused by inlet blockage, and a piston on the rotary shaft responsive to suction increases within the liquid flow line and chamber to actuate shaft rotation. The valve device, chamber and relief-air flow channel are configured and arranged to cause a spurt of liquid from the chamber into the inlet while the valve device is moving from its isolating position toward its opening position upon inlet blockage, whereby the spurt of liquid pushes the blockage away from the inlet and the relief air reduces the suction. The valve includes a liquid-flow barrier secured with respect to the liquid flow line such that the barrier is in an open position allowing flow of liquid from the inlet to the outlet during normal operation and in a closed position isolating the inlet from the outlet in response to suction increases upon inlet blockage.

Abstract translation: 用于液体抽吸系统的自动真空释放装置包括容器，该容器限定充满与液体流动管线连通的液体的腔室;延伸穿过腔室的旋转轴，以支撑与液体流动管线相邻的阀门装置，并移动阀门 打开释放空气流动通道以减轻由入口堵塞引起的增加的吸力，并且响应于吸力的旋转轴上的活塞在液体流动管线和腔室内增加以致动轴旋转。 阀装置，腔室和排气流通道被构造和布置成使得液体从腔室涌入入口，同时阀装置在入口堵塞时从其隔离位置向其打开位置运动，由此液体喷出 将堵塞物推入入口，并且减压空气减少吸力。 阀包括相对于液体流动管线固定的液体流动阻挡件，使得阻挡件处于打开位置，从而允许液体在正常操作期间从入口到出口流动，并且在关闭位置将入口与出口隔离 入口堵塞时对吸力的响应增加。