REXROTH/德国力士乐 品牌
其他厂商性质
上海市所在地
Rexroth力士乐4WE10D5X电磁阀的工作原理
面议德国REXROTH电磁阀现货**
面议德国REXROTH比例阀**
面议德国REXROTH比例阀现货销售
面议德国REXROTH换向阀现货销售
面议REXROTH换向阀4WE10G3X/CW230N9K4南京总代理*现货
面议REXROTH换向阀4WE10G3X/CW230N9K4昆山代理*现货
面议REXROTH换向阀4WE10G3X/CW230N9K4昆山总代理*现货
面议REXROTH换向阀4WE10G3X/CW230N9K4华东总代理*现货
面议REXROTH换向阀4WE10G3X/CW230N9K4上海办事处*现货
面议REXROTH换向阀4WE10G3X/CW230N9K4*
面议REXROTH比例方向阀4WRA系列工作原理
面议REXROTH泵A10V0系列应用领域
REXROTH泵选型依据,应根据工艺流程,给排水要求,从五个方面加以考虑,既液体输送量、装置扬程、液体性质、管路布置以及操作运转条件等。
1.REXROTH泵流量是选泵的重要性能数据之一,它直接关系到整个装置的的生产能力和输送能力。如设计院工艺设计中能算出泵正常、zui小、zui大三种流量。选择泵时,以zui大流量为依据,兼顾正常流量,在没有zui大流量时,通常可取正常流量的1.1倍作为zui大流量。
2.REXROTH泵装置系统所需的扬程是选泵的又一重要性能数据,一般要用放大5%—10%余量后扬程来选型。
3.REXROTH泵液体性质,包括液体介质名称,物理性质,化学性质和其它性质,物理性质有温度c密度d,粘度u,介质中固体颗粒直径和气体的含量等,这涉及到系统的扬程,有效气蚀余量计算和合适泵的类型:化学性质,主要指液体介质的化学腐蚀性和毒性,是选用泵材料和选用那一种轴封型式的重要依据。
4. REXROTH泵装置系统的管路布置条件指的是送液高度送液距离送液走向,吸如侧zui低液面,排出侧zui高液面等一些数据和管道规格及其长度、材料、管件规格、数量等,以便进行系统扬程计算和汽蚀余量的校核。
5. REXROTH泵操作条件的内容很多,如液体的操作T饱和蒸汽力P、吸入侧压力PS()、排出侧容器压力PZ、海拔高度、环境温度操作是间隙的还是连续的、泵的位置是固定的还是可移的。
REXROTH泵是采用磁悬浮原理和螺旋环流体力学结构实现流质推进,REXROTH泵即取消轴,取消轴连接,取消轴密封结构。启动后电流转化为磁场,磁场力驱动螺旋环运转,即螺旋环提升流质前进。
REXROTH泵选型原则
1.REXROTH泵使所选泵的型式和性能符合装置流量、扬程、压力、温度、汽蚀流量吸程等工艺参数的要求。
2.REXROTH泵必须满足介质特性的要求。
对输送易燃、易爆有毒或贵重介质的泵,要求轴封可靠或采用无泄漏泵,如磁力驱动泵、隔膜泵、屏蔽泵
对输送腐蚀性介质的泵,要求对流部件采用耐腐蚀性材料。
对输送含固体颗粒介质的泵,要求对流部件采用耐磨材料,必要时轴封用采用清洁液体冲洗。
3.REXROTH泵机械方面可靠性高、噪声低、振动小。
4.REXROTH泵经济上要综合考虑到设备费、运转费、维修费和管理费的总成本zui低。
5.REXROTH泵具有转速高、体积小、重量轻、效率高、流量大、结构简单、输液无脉动、性能平稳、容易操作和维修方便等特点。
REXROTH泵A10V0系列应用领域REXROTH泵壳内,并紧固在泵轴上,泵轴由电机直接带动。泵壳中央有液体吸管。液体经底阀和吸入管进入泵内。泵壳上的液体排出口与排出管连接。
在泵启动前,泵壳内灌满被输送的液体;启动后,叶轮由轴带动高速转动,叶片间的液体也必须随着转动。在离心力的作用下,液体从叶轮中心被抛向外缘并获得能量,以高速离开叶轮外缘进入蜗形泵壳。在蜗壳中,液体由于流道的逐渐扩大而减速,又将部分动能转变为静压能,REXROTH泵zui后以较高的压力流入排出管道,送至需要场所。液体由叶轮中心流向外缘时,在叶轮中心形成了一定的真空,由于贮槽液面上方的压力大于泵入口处的压力,液体便被连续压入叶轮中。可见,只要叶轮不断地转动,液体便会不断地被吸入和排出。
直线泵工作原理不同与其它任何泵。
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