The constant pressure water supply system is a water supply system that uses pressure sensors, PLCs and inverters as central control devices to ensure that the city's water supply water pressure is constantly constant. Compared with the traditional water supply system, the constant pressure water supply system has the advantages of advanced technology, constant water pressure, convenient operation, reliable operation, energy saving, and high degree of automation.
The traditional water supply method is large, the water quality is easy to pollute, and the infrastructure investment is large. The main disadvantage is that the water pressure cannot be kept constant, which causes some equipment to malfunction. Variable frequency speed regulation technology is a new type of mature AC motor stepless speed regulation technology. It is widely used in the speed control field with its unique excellent control performance, especially in the power supply industry. Due to the special needs of safety production and power supply quality, there are strict requirements for constant pressure water supply pressure, and the step-by-step conversion speed regulation technology has been further applied.
The actual pressure of the pipe network is compared with a given pressure after feedback. When the pipe network pressure is insufficient, the output frequency of the inverter, the pump switching speed, and the amount of water supply increase, causing the pipe network pressure to rise. The amount of water supply is reduced, the pressure of the pipe network is reduced, and a constant pressure water supply is maintained.
Constant pressure water supply can complete the following functions in the water supply of the pumping station:
(1) Maintain constant water pressure
(2) The control system can be operated manually / automatically
(3) Multiple pumps switch automatically
(4) The system sleeps and wakes up. When the water supply is stopped externally, the system is in a sleep state and wakes up automatically when there is demand for water.
(5) Adjust PID parameters online;
(6) Pump group and line protection detection alarm, signal display, etc.
https://www.wxxjyby.com/