The water supply system is an indispensable and important part of national production and life. The traditional water supply method occupies a large area, is prone to water pollution, requires a lot of infrastructure investment, and the main disadvantage is that the water pressure cannot be kept constant, resulting in some equipment not working properly. Variable frequency speed regulation technology is a new and mature stepless speed regulation technology for AC motors, which is widely used in the field of speed control, especially in the water supply industry, due to its unique and excellent control performance. Due to the special needs of safety production and water supply quality, there are strict requirements for constant pressure water supply pressure, so frequency conversion speed regulation technology has been more deeply applied.
After feedback, the actual pressure of the pipeline network is compared with the given pressure. When the pipeline network pressure is insufficient, the frequency converter increases the output frequency, the water pump speed increases, and the water supply increases, forcing the pipeline network pressure to rise. On the contrary, when the speed of the water pump slows down, the water supply decreases, the pressure in the pipeline decreases, and constant pressure water supply is maintained.