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几年来,我们反复进行了取消混流泵底阀的试验:利用柴油机工作时必须吸入新鲜空气或排除废气的原理,将混流泵上的进水底阀取消,开机前不用人工灌水,而用圆木板和泥浆将水管出水口封住,密封水管管路,同时在出水管距水泵体2米远处开一个吸气孔,用橡胶管连接。柴油机起动后,卸下空气滤清器,将连接吸气孔的胶管另一头套住滤清器进口,通过发动机进气吸净水泵管路内的空气,造成管路中的压力与大气压力有一定差值。此时,水在大气压力作用下,逐渐
Over the past few years, we repeatedly canceled the pump valve at the end of mixed-flow test: the use of diesel engine must inhale fresh air or exhaust gas principle, the mixed flow pump on the bottom valve to cancel, do not have to manually start the water, The mud seals the water outlet of the water pipe and seals the water pipe. At the same time, an aspirating hole is opened at a distance of 2 meters from the water pump body of the water outlet pipe and connected with a rubber hose. After starting the diesel engine, remove the air filter, the other end of the hose connected to the suction hole to cover the filter inlet, suction air through the engine suction pump air inside the pump, causing the pressure in the pipeline with the atmospheric pressure there A certain difference. At this point, the water under the action of atmospheric pressure, gradually