Maintenance and use of circulating water vacuum pump

Maintenance of circulating water vacuum pump:

First, the vacuum should not be judged first whether it is leaked by the pumping container or the loosening of the skin tube. In the case of a pump, check the water inlet or each air line for blockage or loose air leakage.

Second, regular maintenance of water quality is the key to long-term stable operation of equipment. Water must be changed regularly and the water tank must be cleaned. Do not draw dust and solid matter.

Third, the motor does not turn, should check the power supply or fuse. Some corrosive gases can cause the water quality in the water tank to deteriorate, and bubbles are generated, which affects the degree of vacuum. Therefore, it should be noted that the water is continuously changed.

4. For special strong corrosive gases, it should be judged carefully whether it reacts with the materials used in this equipment and is used with caution.

How to use the circulating water vacuum pump:

1. There are one-way check valves for each nozzle of the machine. For the sake of safety, more effective measures should be taken at the same time to prevent the water in the pump from flowing back into the pumped container when the pump stops working. The hose is disconnected between the vacuum pump and the pumped container; the work is about to be released by vacuum in the pumping container.

2. Turn on the power plug, turn on the start switch, and the pump starts working.

3. Block the nozzle with your fingers. The corresponding vacuum gauge can reach close to -0.1Mpa. The vacuum indicates that the pump is working properly.

4. Open the top cover of the water tank and inject clean water. The height of the water level is slightly lower than the overflow nozzle.

5. The ultimate vacuum of the circulating water vacuum pump is limited by the saturated vapor pressure of the water. For long hours of operation, the increase in water temperature will affect the degree of vacuum. At this point, the water drain (lower) of the device can be connected to the tap water. The overflow (upper mouth) drains. Properly control the flow to keep the water temperature in the tank from rising and the vacuum is stable.

Since the gas compression in the water ring pump is isothermal, the flammable and explosive gas can be removed, and the dusty and water-containing gas can be removed. Therefore, the water ring pump is increasingly used for the three-dimensional image pump body of the circulating water pump. A suitable amount of water is used as a working fluid. When the impeller rotates clockwise in the figure, the water is thrown around by the impeller. Due to the centrifugal force, the water forms a closed ring of approximately equal thickness depending on the shape of the pump chamber. The inner surface of the lower portion of the water ring is just tangent to the impeller hub, and the upper inner surface of the water ring is just at the tip of the blade (actually the blade has a defined insertion depth in the water ring). At this time, a crescent space is formed between the impeller hub and the water ring, and this space is divided by the impeller into a plurality of small cavities equal to the number of blades. If the lower part of the impeller is used as the starting point, then the impeller is 180 degrees before the rotation, the small cavity area is changed from small to large, and communicates with the suction port on the end face. At this time, the gas is sucked, and when the inhalation is finished, the small cavity is Isolated from the suction port; when the impeller continues to rotate, the small cavity becomes larger and smaller, so that the gas is compressed; when the small cavity communicates with the exhaust port, the gas is discharged outside the pump.