The working principle of water ring vacuum pump – slurry pump rubber liners – ch
Vacuum pump (the water ring pumps) is a rough vacuum pump, it can get the ultimate vacuum for the 2000 ~ 4000Pa, Series air jet up to 270 ~ 670Pa. Water ring vacuum pump can be used as compressor, known as the water ring compressor, are low-pressure compressor, the pressure range of 1 ~ 2 × 105Pa table pressure.
Water ring vacuum pump was originally used as a self-priming pump, and then gradually for the petroleum, chemical, machinery, mining, light industry, medicine and food, and many other industrial sectors. In many industrial production processes, such as vacuum filter, vacuum water, vacuum feed, vacuum evaporation, vacuum concentration, vacuum and vacuum degassing, etc. resurgence, water ring vacuum pump is widely used. As the rapid development of application technology of vacuum, liquid ring vacuum pump in the rough vacuum has been obtained by the people seriously. As the water ring vacuum pump in the gas compression is isothermal, it can be exhausting flammable, explosive gas, but can also dust extraction, water content of the gas, therefore increasing the water ring pump applications.
When the impeller according to the figure clockwise direction, the water was thrown around the impeller, due to the centrifugal force, the water formed in the pump chamber, a decision similar to the shape of a closed ring such as thickness. Water rings on the part of the inner surface of the just and the tangent to the impeller hub, the inner surface of the water ring coincides with the lower leaves of the top contact (actually leaves the water ring into a certain depth). At this point the impeller wheel and water to form a crescent-shaped space between the rings, and this space has been an equal number of impeller blades are divided into a number of small cavities. If the upper impeller 0 ° as a starting point, then before the 180 ° rotating impeller in a small chamber when the volume from small to big, and with the end surface of the suction port connected, this time the gas is inhaled, when the suction end of the cavity is small and the suction port isolation; when the impeller continues to rotate, the small cavity from big to small, the gas is compressed; when the small cavity connected with the exhaust port, the gas will be discharged from the pump outside.
In summary, the water ring vacuum pump is a pump chamber volume by the change to achieve suction, compression and exhaust, so it belongs to varactor vacuum pump. Water ring pumps and compared to other types of mechanical vacuum pump has the following advantages:
Simple structure, manufacture less precision, easy to process.
Compact, higher pump rpm, and can be directly connected with the motor, without speed reduction device. Therefore, the structure with a small size, access to large displacement, the area is also small.
Compressed gas is essentially isothermal, that is, the process of compressed gas temperature change is small.
As the pump cavity no metal friction surface, not on the pump for lubrication, and wear a small. Between rotating parts and fixed parts of the seal can be accomplished directly from the water seal.
Breathing evenly, smooth and reliable operation, simple operation, easy maintenance.
Water ring vacuum pump has its disadvantages:
Low efficiency, typically around 30% up to 50% better.
Vacuum is low, not only because of structural constraints are more important by the working fluid vapor pressure limits. Water as working fluid, the ultimate pressure can reach 2000 ~ 4000Pa. Oil as working fluid, up to 130Pa.
In short, because of water ring vacuum pump in the gas compression is isothermal, it can be exhausting flammable and explosive gases. In the absence of exhaust valve and the friction surface, it can be exhausting gas with dust, water and condensable gases and gas mixtures. With these outstanding features, low efficiency, although it is still widely applied.
The e-commerce company in China offers quality products such as slurry pump rubber liners , china Sand Pump ES, and more. For more , please visit slurry pump today!
Processing your request, Please wait....
