Stainless steel variable frequency constant pressure water supply equipment, fully automatic constant pressure water supply equipment

Description :

Non negative pressure water supply equipmentWorking principle:

Non negative pressure water supply equipmentThe regulating control mechanism consists of an AC frequency converter, a remote pressure gauge, and a regulator. The complete constant pressure variable water supply system is composed of circuit breakers, contactors, and other actuators. The working status of two water pumps: Pump 1 is operating with variable frequency, and the frequency rises to a certain set value and reaches the set pressure. At this time, the variable frequency device is working in a constant pressure state. When the water is used and the pressure drops, if the water pump fails to reach the set pressure after maintaining a certain set frequency for a period of time, it will automatically switch to the power frequency operation of pump 1 and start the frequency conversion operation of pump 2. When the water consumption decreases, pump 1 stops and pump 2 operates at a variable frequency, increasing the frequency to a set value to maintain the set pressure and function as a constant pressure variable.

Non negative pressure water supply equipmentIt is a secondary pressurized water supply equipment that is directly connected to the municipal water supply network by a pressurized water supply unit, and is connected in series with the residual pressure of the municipal water supply network to ensure that the pressure of the municipal water supply network is not less than the set protection pressure (which can be zero pressure of relative pressure, and is called negative pressure when it is less than zero pressure).

Non negative pressure water supply equipmentClassification: There are mainly two types of non negative pressure water supply equipment used in the market: steady flow tank type and regulating water tank type;

　　1. Stable flow tank type: The tank type non negative pressure water supply equipment is equipped with a pressure sealing tank in front of the water pump, and a stable flow compensator (also known as a "vacuum eliminator") is added inside or outside the tank. The water pump absorbs water through the stable flow tank, pressurizes it, and supplies it to the user. With the regulating effect of the stable flow compensator, the impact on the public water supply network is reduced. This method has no reserve water supply, and when the urban public water supply network is shut down, it is prone to water interruption;

　　2. Regulating water tank type: This method is equipped with an unpressurized regulating water tank, which is internally equipped with a steady flow compensator. Through an electronic control device, the water in the regulating water tank is circulated at least twice a day to ensure that the water quality remains unchanged. When the water volume and pressure conditions of the municipal pipeline network can meet the requirements of non negative pressure water supply, water can be directly taken from the municipal pipeline network; Otherwise, take water from the regulating water tank. This method has a certain reserve water capacity and can be used in areas with unstable water supply networks. However, due to the presence of water tanks and maintenance manholes, regular cleaning and disinfection must still be carried out according to regulations

AfterSalesService :

• water supply equipment