Water ring pump common faults Precautions working principle

Water ring pump common faults Precautions working principle

The water ring pump was originally used as a self-priming pump by the impeller pump body suction and exhaust disk water in the pump body wall formed by the water ring suction port exhaust port auxiliary exhaust valve and other components of the water ring pump system in the industrial production of many processes, such as vacuum filtration vacuum water diversion vacuum feeding vacuum evaporation vacuum concentration Vacuum resurgence and vacuum degassing, water ring pump is widely used Due to the rapid development of vacuum technology, water ring pump in a crude vacuum has been paid great attention by people Due to water ring pump in the gas compression is isothermal, therefore, can smoke in addition to flammable and explosive gas, it also can smoke in addition to dust water gas, therefore, water ring pump application is increasing When the impeller rotates clockwise as shown in the figure, the water is thrown around by the impeller. Due to the centrifugal force, the water forms a closed ring of equal thickness which is determined by the shape of the pump cavity Water ring surface of the lower part coincided with the impeller wheel tangent, water ring on the division of the surface just in contact with the top of the blade (actually leaves some insert depth) in the water ring circles as the impeller wheel hub with a crescent-shaped space formed between water ring, and the space was divided into impeller and blade is equal to the number of a number of small cavities If in the bottom of the impeller 0 As the starting point, the volume of the small cavity increases from small to large when the impeller rotates 180 times before, and it is communicated with the suction port on the end face. At this time, the gas is inhaled, and when the sauction ends, the small cavity is isolated from the suction port. When the impeller continues to rotate, the small cavity from large to small, so that the gas is compressed; When the small cavity is connected with the exhaust port, the gas will be discharged out of the pump to sum up, the water ring pump is based on the change of the pump cavity volume to achieve suction compression and exhaust, so it belongs to the variable-volume vacuum pump Be eccentric impeller is installed in the pump body, when rotating impeller, pump body into the water ring pump impeller water to be thrown around, due to the effect of centrifugal force, the water formed a similar to the pump cavity shape such as the thickness of the closed water ring the area on the surface of the water ring is right with the impeller wheel tangent, water ring in the lower part of the surface contact with the top of the blade At this point, a crescent-shaped space is formed between the impeller hub and the water ring, and this space is divided by the impeller into several small cavities equal to the number of blades. If the upper part of the impeller is 0 as the starting point, then the impeller is 180 before rotation , small cavity volume gradually changed from small to big, the pressure reduced constantly, and the mines with suction mouth of the suction or discharge tray, when the pressure inside the small cavity space is less than the pressure of the pump container, according to the principle of balance of gas pressure, the gas is pumped continues to be draw in small cavity, is in the process of suction Breathe when complete with inspiratory mouth isolation, from - to - Section, the volume of the small cavity is gradually decreasing, the pressure is increasing, at this time is in the compression process, when the compressed gas reaches the exhaust pressure in advance, from the auxiliary exhaust valve exhaust in advance from the section - to - , and the volume of the small chamber connected with the exhaust port to further reduce the pressure further rise, when the pressure of the gas is greater than the exhaust pressure, the compressed gas is discharged from the exhaust port, in the continuous operation of the pump, continuously carry out the suction compression exhaust process, so as to achieve the purpose of continuous pumping

IKS PVD company, decorative coating machine, tools coating machine, DLC coating machine, optical coating machine, PVD vacuum coating line, the turn-key project is available. Contact us now, E-mail: iks.pvd@foxmail.com