Water ring vacuum pump working principle and overhaul Daquan treasure

Water ring vacuum pump (water ring pump) is a kind of rough vacuum pump, which is widely used in petroleum, chemical industry, machinery, mining, light industry, papermaking, power, metallurgy, medicine and food industry and municipal and agriculture Department of many processes. Water ring vacuum pump works and overhaul Daquan water ring vacuum pump _ ring vacuum pump works In the pump body with the right amount of water as a working fluid, when the impeller in the direction indicated in the figure clockwise rotation, water was Impeller thrown around, due to the role of centrifugal force, the water formed a cavity shape determined by the pump thickness of the closed ring. The inner surface of the upper part of the water ring is just tangential to the impeller hub, and the lower inner surface of the water ring is just in contact with the top of the blade (in fact there is some insertion depth of the blade in the water ring). At this point the impeller hub and the water ring form a crescent-shaped space, and this space has been divided into a number of impeller leaves the same number of small cavities. If the upper part of the impeller 0 ° as a starting point, then the impeller at 180 ° before rotation when the small chamber volume from small to large, and the end of the suction port communicating, when the gas is inhaled, when the end of the inhalation chamber When the impeller continues to rotate, the small cavity becomes smaller and the gas is compressed; when the small chamber communicates with the exhaust port, the gas is discharged outside the pump. In summary, the water ring pump is based on changes in the volume of the pump to achieve suction, compression and exhaust, so it belongs to the varactor vacuum pump. Understand the principle, you can easily understand the overhauling skills. Water ring vacuum pump _ water ring vacuum pump repair skills First, the local maintenance of the general arrangements for the operation of the gap or the winter overhaul period. Local maintenance projects are: 1, fully adjustable pump regulator copper sleeve and the oil cover inspection. 2, vacuum pump guide bearing inspection. Wear of rubber bearings, water leakage, journal wear, etc. to check, record, deal with. Most of the oil-bearing bearing is Babbitt steel bearings, soft and easy to wear, such as the sealing effect is not good, stop the oil in the basin, sediment deposition, running wear bearings, journal. Especially for un-plated or stainless steel insert stainless steel shaft, in order to understand its corrosion, wear and tear, should be checked regularly. 3, thermometer, instrumentation, relay protection devices such as inspection, testing. 4, on the guide bearing groove and turbine oil sampling test. 5, bearing clearance and tile inspection. Depending on the temperature of the run-time thermometer, there is a purpose check the bearing clearance and axial surface conditions. 6, brake part of the inspection process. 7, all parts of the unit fasteners, such as anchor bolts, shaft keys, dowel pins are loose. 8, oil cooler appearance inspection and water test to see whether there is leakage. 9, check the impeller, blades and impeller shell cavitation and sediment wear and tear, and measure the extent of the record. 10, measuring the gap between the blade and the impeller shell. Second, the unit overhaul This is a planned management, repair and overhaul unit by the technical conditions. First, the accident damage, the chance of occurrence is small. The second is the normal damage, such as running friction and wear, cavitation damage, sediment wear, vibration caused by a variety of interferences, the role of AC stress and corrosion, electrical insulation aging, or serious wear and tear parts, damage, leading to the performance of the unit And technical and economic indicators of a serious decline in the machine must be disintegrated, repeated repair, replacement, adjustment and partial transformation. (Editor: cloud sea)

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