Operation process of circulating water vacuum pump

1 Usage: open the upper cover of the water tank and inject clean cold water The water level shall be slightly lower than the overflow nozzle Connect the power plug, turn on the start switch, and the pump starts to work When the suction nozzle is blocked with fingers, the corresponding vacuum gauge can reach a vacuum degree close to - 0.1MPa, indicating that the pump works normally There is a one-way check valve at each suction nozzle of the machine For the sake of safety, more effective measures should be taken to prevent the water and sewage in the pump from flowing back into the pumped container when the pump stops working The specific methods are as follows: (1) the skin tube between the vacuum pump and the pumped container is cut off (2) Stop work will be evacuated from the container The limit vacuum degree of circulating water vacuum pump is limited by the saturated vapor pressure of water Long time operation, the water temperature will affect the vacuum At this time, the drain port (lower port) at the back of the equipment can be connected with the tap water Overflow (upper) drainage Proper flow control can keep the water temperature in the water tank from rising and the vacuum degree stable 2 Maintenance: the key to the long-term stable operation of the equipment is to keep the water quality clean regularly The water tank must be changed and cleaned regularly Do not pump dust and solid matter Some corrosive gases can cause the water quality in the water tank to become poor, generate bubbles, and affect the vacuum degree, so it is necessary to pay attention to the continuous circulation of water change For special strong corrosive gas, it is necessary to carefully judge whether it reacts with the materials used in the equipment and use it carefully If the vacuum is not removed, it is necessary to first determine whether the container is leaking or the hose is loose In case of pump problems, check whether the water inlet or air channels are blocked or loose If the motor of the circulating water vacuum pump does not run, check the power supply or fuse.