Electrohydraulic thermostatic control valve

    公开(公告)号:US10481622B2

    公开(公告)日:2019-11-19

    申请号:US13289789

    申请日:2011-11-04

    IPC分类号: G05D23/13

    摘要: Apparatus and methods for providing fluid such as water at a controlled temperature. In some embodiments, hot and cold fluid is provided to a thermostatically controlled mixing valve, which then provides fluid at a mixed temperature to a plumbing system. The thermostat provides a first loop for closed-loop control of fluid exit temperature, and preferably there is a second, electronically controlled closed loop for adjusting the temperature of fluid exiting the valve. In yet other embodiments the electronic control loop is fail-fixed, such that a loss of electrical communication to the actuator results in the actuator maintaining its last position. In yet other embodiments there is a system including a flow sensor and a recirculation pump such that the temperature of the fluid exiting the valve cannot be adjusted if there is insufficient flow, or if the pump is actuated.

    ELECTROHYDRAULIC THERMOSTATIC CONTROL VALVE
    2.
    发明申请
    ELECTROHYDRAULIC THERMOSTATIC CONTROL VALVE 审中-公开
    电动恒温控制阀

    公开(公告)号:US20120138157A1

    公开(公告)日:2012-06-07

    申请号:US13289789

    申请日:2011-11-04

    IPC分类号: G05D23/13 G05D11/00

    摘要: Apparatus and methods for providing fluid such as water at a controlled temperature. In some embodiments, hot and cold fluid is provided to a thermostatically controlled mixing valve, which then provides fluid at a mixed temperature to a plumbing system. The thermostat provides a first loop for closed-loop control of fluid exit temperature, and preferably there is a second, electronically controlled closed loop for adjusting the temperature of fluid exiting the valve. In yet other embodiments the electronic control loop is fail-fixed, such that a loss of electrical communication to the actuator results in the actuator maintaining its last position. In yet other embodiments there is a system including a flow sensor and a recirculation pump such that the temperature of the fluid exiting the valve cannot be adjusted if there is insufficient flow, or if the pump is actuated.

    摘要翻译: 用于在受控温度下提供诸如水的流体的装置和方法。 在一些实施例中,将热和冷流体提供给恒温控制的混合阀,然后混合阀将混合温度的流体提供给管道系统。 恒温器提供用于闭环控制流体出口温度的第一回路,并且优选地存在用于调节离开阀的流体的温度的第二电子控制闭环。 在其他实施例中,电子控制回路故障固定,使得与致动器的电通信丢失导致致动器保持其最后位置。 在其他实施例中,存在包括流量传感器和再循环泵的系统,使得如果流量不足或者泵被致动,则不能调节离开阀的流体的温度。