| 摘要 |
PURPOSE:To maintain the sealed liquid in water sealing vacuum pump constant by arranging an orifice at the supply water flow-in port of water sealing vacuum pump while arranging a branch conduit having low flow path resistance in the water supply conduit thereby flowing supply water to the water supply conduit continuously while monitoring the flow. CONSTITUTION:An orifice 12 is arranged at the supply water flow-in port 1 made through the sideboard of water sealing vacuum pump 2 while a branch conduit 14 having low flow path resistance, a flow gauge 16 and a regulation valve 17 are coupled to the water supply conduit 19 which is continuous to said orifice. consequently, when flowing supply water continuously to the water supply conduit 19, the liquid level in pump operation chamber is maintained constant at anytime through monitoring of the operation of regulation valve 17 and the flow gauge 16 because of the head H of sealed water in pump operation chamber, pressure loss through an orifice and overflow of supply water to the branch conduit. |
