蜗壳内充水保压系统，主要包括加压水泵及其控制装置、蜗壳进口闷头、座环密封环等组成。
The water filling and pressure maintaining system mainly included: pressure pump and its control device, blockage end at the spiral case inlet, sealing ring on the stay ring of turbine, etc.
这时控制器打开电磁阀并启动水泵加压，待水上满后两者将会同时关闭。
Then the controller opens the solenoid valve and starts the pump pressure, the water will be closed after the two will be closed.
该工程包括水库(含大坝)，取水泵站、输水管道、净水厂、隧洞、调节水池、加压站等，较完善。
This project consists of reservoirs (including DAMS), water intake pumping stations, pipe laying, water purifying plant, tunnels and caves, adjustment cisterns, hydraulic stations ect.
提供了城市供水水泵的变压变流量自动控制方法，成功地解决了水源地和地区加压站昼夜之间水流量和水压变化大、难以控制的问题。
This peper introduces the new method about variable pressure and variable current control of water pump in the process of cities water supply.
提供了城市供水水泵的变压变流量自动控制方法，成功地解决了水源地和地区加压站昼夜之间水流量和水压变化大、难以控制的问题。
This peper introduces the new method about variable pressure and variable current control of water pump in the process of cities water supply.
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