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对于高层住宅必须在屋顶设高位水箱才能解决用户用水问题。在底层要有泵房和贮水池,用水泵从贮水池抽水扬到高位水箱中。为实现上水自动控制,很多设计是利用设在高位水箱内的水位电极自动控制泵房电机的启闭。一旦贮水池内的水被抽净或贮水池进水中断时,由于水箱水位没达到设计高水位,故水泵电机仍继续运转,致使水泵抽空。为了克服上述缺点,可采用下图所示的原理,实现水箱水位和贮水池水位联锁控制。
For high-rise residential buildings, high water tanks must be installed on the roof to solve the user’s water problem. Pumps and storage tanks are to be provided on the ground floor, and water pumps are used to pump water from the storage tanks into the high water tanks. In order to realize automatic control of Sheung Shui, many designs use the water level electrode located in the high water tank to automatically control the opening and closing of the pump room motor. Once the water in the storage tank is drained or the inlet of the storage tank is interrupted, the water pump motor continues to run due to the water level in the tank not reaching the designed high water level, causing the pump to pump out. In order to overcome the above shortcomings, the principle shown in the figure below can be used to realize the interlock control of the water level of the tank and the water level of the storage tank.