The working principle of non-negative pressure water supply equipment Mar 11,2016 【News】

The working principle diagram of the non-negative pressure water supply equipment: The constant-flow tank-type non-negative pressure water supply equipment is directly connected to the municipal water supply network and supplies water by series superimposed pressure on the basis of the remaining pressure of the municipal water supply network. (1) Variable frequency constant pressure water supply: When the water supply volume of the municipal water network is greater than the water consumption of users, the constant flow tank type non-negative pressure water supply equipment provides variable frequency constant pressure water supply. At this time, a certain amount of pressurized water is stored in the constant flow tank. (2) Negative pressure: When the water consumption of users increases, causing the pressure at the connection between the municipal pipeline network and the steady flow tank to drop, and when the pressure drops below the relative pressure 0, a negative pressure is formed in the steady flow tank, and the intake valve of the vacuum suppressor opens, allowing the atmosphere to enter the steady flow tank. At this point, the steady flow tank is equivalent to an open water tank with a free liquid surface, and the pressure is the same as that of the atmosphere, with a negative pressure. When the water level drops to the set value, the liquid level controller transmits the control signal to