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在吸扬式挖泥船的水力疏浚中,由于其所输送的泥浆的特性,泥泵的磨损是不可避免的。影响磨损的因素很多,实践证明,在材质相同和施挖土质基本类似的条件下,装配工艺不同,对泥泵过流部件的磨损情况也有着明显的区别。我队吸07绞吸式挖泥船,配用8PNA 型泥泵,其基本参数为:设计流量792米~3/小时;总扬程25米水柱;吸管直径250毫米;排管直径200毫米;排距500米(排高5米时),挖泥量90米~3/小时。过去该泵的过流部件磨损剧烈,叶轮和衬板只能挖泥10万余
In the hydraulic dredging of a suction dredger, mud pump wear is inevitable due to the characteristics of the slurry it conveys. There are many factors that affect the wear and tear. Practice has proved that there is a clear difference between the wear conditions of mud pump overcurrent components under the conditions of the same material and the same excavation soil quality, different assembly processes. My team sucked 07 cutter suction dredger, equipped with 8PNA mud pump, the basic parameters: design flow of 792 m ~ 3 / h; total lift of 25 m water column; pipe diameter of 250 mm; pipe diameter of 200 mm; row 500 meters away (5 meters high row), dredging volume 90 meters ~ 3 / hour. In the past the pump over-current components wear and tear, impeller and liner can only dredging more than 100,000