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液压机系统压力对冲洗的影响
发布者:admin  日期:2017-06-08  点击:1210
要保证液压油在管道中保持紊流状态还要考虑液压油在管道中的压力损失,泵的输出压力必须大于液压油在管道中保持紊流所损失的压力,损失的压力p用式(4)计算。泵的输出压力由系统的溢流阀调定,所以溢流阀调定的压力必须大于系统损失的压力,否则液压机系统的流速不能达到紊流要求。

To ensure that the hydraulic oil to keep the turbulent state but also consider the pressure loss of the hydraulic oil in the pipeline in the pipeline, the output pressure of the pump must be greater than the loss of the hydraulic oil to keep the turbulent pressure in the pipeline, the pressure loss of P type (4) calculation. The output pressure of the pump is adjusted by the overflow valve of the system, so the pressure of the relief valve setting must be greater than the pressure of the system loss, otherwise the flow speed of the system can not meet the requirements of turbulence.
In p=lDV2 (4), l is the length of hydraulic pipe; P is hydraulic medium density.
2 the flushing scheme of each test system of the hydraulic station of Wuhan Iron and steel works. The solid wall particles are attached to the pipe wall of the new or modified hydraulic system. The solid particles must be removed by flushing so as not to pollute the hydraulic system. According to the above hydraulic flushing principle, can the pollutants in the pipeline be removed effectively, so that the cleanliness level of the hydraulic system reaches the required level, and the flow, pressure and temperature during the flushing are the key.


p=lDV2(4)式中l为液压管道长度;p为液压介质密度。
2武钢液压站各试验系统冲洗方案新建或改造的液压系统管道内壁附着了各种固体颗粒物,需要通过冲洗除掉固体颗粒物以免对液压系统形成污染。按照上述液压冲洗原理,能否有效清除管道内的污染物,使液压机系统清洁度等级达到要求的水平,冲洗时的流量,压力和温度是关键。
文章来源:http://www.yxpic.com/news.asp?lt=295
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