Backflow Alert System
    15.
    发明公开

    公开(公告)号:US20240200313A1

    公开(公告)日:2024-06-20

    申请号:US18407136

    申请日:2024-01-08

    CPC classification number: E03B7/077 E03B7/071 G08B25/006

    Abstract: A sprinkler backflow alert system includes a sprinkler system, a building fire panel, a backflow preventor including at least one shut-off valve, a fluid detection system, and a tamper switch. The backflow preventor may be fluidly coupled upstream of the sprinkler system. The fluid detection system is configured to detect a discharge of water from the backflow preventor and generate a water discharge signal corresponding to the backflow discharge. The tamper switch is configured to detect a change in a position of the at least one shut-off valve and generate a tamper signal in the event the at least one shut-off valve is closed or partially closed. When a backflow discharge event occurs, a signal is sent to the fire panel triggering the building fire alarm as well as sending an alert to the local fire department and facility owner.

    TECHNOLOGIES FOR ISOLATING REGIONS OF A WATER DISTRIBUTION NETWORK

    公开(公告)号:US20230266776A1

    公开(公告)日:2023-08-24

    申请号:US17678218

    申请日:2022-02-23

    CPC classification number: G05D7/0647 E03B7/071 G05B15/02

    Abstract: Systems for isolating a region of a water distribution network are disclosed. In embodiments the systems and methods utilize at least one control valve system that includes a valve, a pressure sensor, an actuator, and a controller. The controller determines a water pressure at the control valve system based at least in part on a sensor signal from the pressure sensor. When the detected pressure is less than or equal to a low pressure threshold the controller issued a control signal that causes the actuator to move the valve to a fully closed position. Multiple control valve systems may be employed to isolate a region of a water distribution network. Methods of isolating a portion of a water distribution network, water distribution network including a control valve system, and control valve systems for use in water distribution networks are also disclosed.

    PRESSURE COMPENSATION SYSTEMS, LIQUID SUPPLY SYSTEMS AND METHODS USING THE SAME

    公开(公告)号:US20220252170A1

    公开(公告)日:2022-08-11

    申请号:US17173987

    申请日:2021-02-11

    Abstract: Fluid detection systems and methods using the same are disclosed. In embodiments the fluid detection systems include a sensor module and an electronics module. The sensor module includes a sensor housing that includes a liquid flow path and a sensor element disposed around at least part of the liquid flow path. The sensor element can detect a capacitance of the liquid flow path and provide a sensor signal to a controller in the electronics module. The electronics module can determine a detected capacitance in the liquid flow path based at least in part on the sensor signal, and can determine whether a wet event has occurred based on a comparison of the detected capacitance to a threshold capacitance. Methods using the fluid detection systems and fluid supply systems including the fluid detection systems are also disclosed.

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