In the system is in a stable state, due to the discharge of water in the pneumatic tank to take away part of the gas, the pressure inside the tank is reduced, when reduced to a certain pressure, the pressure sensor sends a signal to open the solenoid valve through the electronic control box to discharge the water inside the tank, when the water level drops to the lower limit, the solenoid valve closes, the level sensor sends out a signal to control the filler pump to start working, to the pneumatic tank filler refill gas.
When the water level reaches the upper limit, the water pump stops, but the tank pressure does not reach the maximum working pressure, the solenoid valve opens, the tank drainage. When the water level reaches the lower limit, the fill water pump starts again, and so on for many times, until the tank pressure and water level reach the specified position when the fill water pump stops, to ensure that the tank at any time to maintain the rated working pressure and rated water level.
Expanded information:
The advantages of pneumatic water supply equipment are: flexibility, the use of the location of the constraints, and easy to shade. Installation and dismantling are very convenient. Complete sets of equipment are assembled at the factory production site. Small footprint, short construction period. Low cost of civil construction. Completion of automated operation is convenient for protection and handling. Pneumatic water tank is closed male. High-level water supply is not only water quality is not easy to contaminate, but also help to eliminate the impact of water hammer in the water supply system.
The defects are: conditioning volume is small. Storage of water at least, usually the most conditioned water accounted for only 20% of the total volume'-30%. And for the pressure vessel, so more steel consumption. Variable pressure pneumatic water supply equipment water supply pressure change. The life span of the water supply accessories have a certain impact. The power consumption of the pneumatic water supply equipment is larger, one because the regulation of water is minimal. Negative pressure water supply equipment pumps start frequently, start the current is large, and the second is that the pump operates between the maximum operating pressure and the minimum operating pressure.
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