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公开(公告)号:US06907898B2
公开(公告)日:2005-06-21
申请号:US10409309
申请日:2003-04-08
CPC分类号: G01M3/28 , F16K24/048 , F16K31/22 , Y10T137/7293 , Y10T137/7727 , Y10T137/87338
摘要: A fluid shutoff apparatus utilizes a float [121] of a float chamber [115] connected to a float-operated valve [113] to provide positive shutoff of fluid to a downstream load upon excessive flow from the fluid outlet [109] of the apparatus. The float-operated valve is shut when fluid discharge from the apparatus is greater than the flow rate from a flow-limiting valve [103] connected to a fluid inlet [107], decreasing the fluid level in the float chamber. The volume of the float chamber prevents inadvertent shutoff of fluid due to normal perturbations in flow to the load.
摘要翻译: 流体切断装置使用连接到浮动操作阀[113]的浮子室[115]的浮子[121],以在来自装置的流体出口[109]的过度流动时向下游负载提供正向的流体关闭 。 当从设备排出的液体流量大于连接到流体入口[107]的限流阀[103]的流量时,浮动操作阀关闭,从而降低了浮子室中的液位。 浮子室的容积可防止由于流向负载的正常扰动导致流体无意的关闭。