What is the working principle of liquid ring vacuum pump? Why must the pump body be inside.
What is the principle of the liquid ring vacuum pump? Why the pump body must add a suitable amount of water?
To say the vacuum pump thing principle, in the pump body to take a suitable amount of water is as a matter of liquid. When the impeller rotates clockwise in the figure, the water is thrown to the four sides by the impeller. Due to the effect of centrifugal force, the water forms a closed ring of similar thickness depending on the shape of the pump chamber.
The lower part of the inner surface of the liquid ring is just tangent to the hub of the impeller, and the upper part of the inner surface of the liquid ring is just in contact with the tip of the blade (in fact, the blade has a certain insertion depth in the liquid ring).
Vacuum pump operation precautions
According to GB/T8196, exposed moving parts shall be equipped with protective devices for preventive protection. If the protection device can prevent the contact between the test manipulator specified in EN60529 and the moving part, the protection effect of the protection device can be considered sufficient. All accessible edges and corners should be designated to avoid injury. If protection is achieved only after the complete installation of the vacuum system, temporary protection measures should be provided during the installation of the pump (for example, if the population at the pump can reach the mechanical parts of the pump, the population of the pump should be capped).
In the use of vacuum pump equipment, the vacuum parts should have enough strength to withstand the extrusion. Where such hazards cannot be eliminated, an anti-pressure device is needed to control the catapult. The exhaust filter shall be of sufficient capacity to ensure the safe operation of the vacuum pump at the maximum pumping capacity. Measures are provided to ensure that the filter does not cause the pump population pressure to exceed its maximum allowable operating pressure in cases of saturation or blockage. Exhaust pressure monitoring device or pressure regulating valve shall be provided when debris accumulated at the exhaust port of the pump or in the vacuum system cannot be avoided.