Water ring vacuum pump cooling water system

Working process of water ring vacuum pump: the mixture of air and steam in the condenser passes through the suction of the water ring vacuum pump to enter the air water separator. The working water after cooling is 2 ways and 1 way, which is sprayed into the water ring vacuum pump inlet through the nozzle to cool the mixture of air and gas from the condenser to improve the suction capacity of the water ring vacuum pump. The other way directly enters the water ring vacuum pump as the working water to maintain the water ring and water ring temperature of the vacuum pump. The water ring vacuum system is shown in figure 1. Water ring vacuum pump main components are impeller and housing. Because the impeller is mounted on the shell eccentrically, the working liquid rotates with the impeller to form a running water ring in the shell, and the inner surface of the water ring is eccentrically connected with the impeller. As the shell in the appropriate position to open air intake and exhaust drool ring vacuum pump to complete the suction, compression and exhaust mutual continuous process so as to achieve the purpose of pumping gas. In the working process of the water ring vacuum pump, the energy transfer process of the working medium is as follows: in the suction area, the working medium increases the operating speed under the impeller's promotion and flows out of the impeller while inhaling gas from the suction port; In the compression zone, the working medium velocity drops and the pressure rises while the compressed gas is compressed towards the center of the impeller.
Thus it can be seen in the whole process of water ring vacuum pump working medium from the impeller of the mechanical energy and transform it into its kinetic energy and then liquid kinetic energy is converted into a liquid and the gas pressure can be reduced to power energy into the energy of the gas to liquid water ring vacuum pump cooling water to the original design of the cooler water for cooling towers to circulating water after open cycle booster pump is called the open cycle cooling water. When the working liquid water enters the cooler, the cooling water enters the cooler from one side of the water chamber and flows out from the other side chamber so that the working liquid water is cooled. When the temperature of cooling water decreases the vacuum pump suction capacity to enhance the output of the vacuum pump will increase. When the vacuum pump running outdoors in the summer high temperature cooling water temperature is higher on the one hand, of working liquid cooling water cooling can not meet the design effect on the other hand, water ring vacuum pump working liquid temperature will rise and vaporizing the airtight crescent-shaped part inside the cavity from the working liquid vaporization gas reduces the condenser no condensate gas suction in quantity output of the water ring vacuum pump is decreased. At the same time, the operating condition in the water ring vacuum pump becomes extremely severe, which causes serious equipment damage and poses a serious threat to the safe operation of the unit.
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