bently速度传感器9200-06-05-05-00

武汉百士自动化设备有限公司提供bently速度传感器9200-06-05-05-00。bently速度传感器9200-06-05-05-00，武汉百士自动化设备有限公司供应产品，原厂，保障，价格优惠；移动电话：，商务qq：980227448，传真：027-87680708-608，联系人：雷青；欢迎新老客户咨询购买！

seismoprobe速度传感器共有三种:
9200: 9200是两线传感器，适用于连续监测或与测试或故障诊断仪表-起应用于周期性测量中。当与整体电缆一同订购时，9200具有---的抗腐蚀性,不需要额外保护。
74712: 74712是9200的高温应用版本。
47633: 47633的安装方式较少，只提供整体铠装电缆。它的设计采用可替换
的夹头，当动线圈磨损后易于替换。它用于速度传感器安装方式有限且只需提供简单性能的一般用途机械。
多种联接电缆可以将9200和74712传感器与其它仪表或速度-位移转换器联接
起来。这些电缆以300毫米(1英尺递增，有或没有不锈钢铠装。
有两种类型的速度-位移转换器(vdc)可供选择:
9513:与9200和74712传感器-起使用。
46687:与47633传感器一起使用。

注意
如果箱体测量是为了对机器进行整体保护,应考虑每种测量的有用性。大多数常见的机器故障(不平衡、不对中等)在转子上产生,并引起转子振动的增加(至少发生改变)。为了使只通过任何箱体测量就可以对机器实现有效的整体保护,必须要有足够大的转子振动被如实地传递到轴承箱体或机壳上,或在更特殊的情况下，传递到传感器的安装位置。
此外,对传感器的物理安装要多加注意。不正确的安装会引起传感器幅值和相位响应的减少,并且/或导致产生不代表真实机器振动的信号。根据要求，bently nevada可以提供工程化服务,帮助用户对有疑问的机器选择适当的箱体测量方式，并且/或提供安装协助。

velomitor压电式速度传感器用于测量轴承箱体.壳体或结构的---(相对于自由表面)振动。与带有运动部件的速度传感器,如bently nevada seismoprobe系列速度传感器不同, velomitor传感器采用晶体形式，在压电式加速度计的基础_上进行化设计，嵌人积分电路。因其采用晶体电路，没有移动部件,所以怀会产生磨损和退化，并且可以垂直、水平或以任何角度安装。
注意
如果通过箱体测量对机器进行整体保护，应该考虑每种测量的有用性。常见的机器故障(不平衡、不对中等)都发生在转子上，引起转子振动的增加(或至少发生变化)。为了只通过箱体测量有效地对机器进行整体保护,必须有足够大的转子振动被如实地传送到轴承箱体或机壳上，或在更特殊的情况下传送到传感器的安装位置。
此外，对传感器的安装必须多加注意。如果安装不当,将会导致传感器性能退化或产生不表征机器实际振动的错误信号。当将输出积分成位移时，将使信号畸变加剧。在任何情况下需做位移积分时，必须严加注意。
针对用户要求，bently nevada可以提供工程服务，帮助用户决定通过箱体测量对机器进行整体保护的适用性以及/或提供安装协助。
bently速度传感器9200-06-05-05-00
本特利bently速度传感器
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汽轮机通常在高温高压及高转速的条件下工作，是一种较为精密的重型机械，一般须与锅炉（或其他蒸汽发生器）、发电机（或其他被驱动机械）以及凝汽器、加热器、泵等组成成套设备，一起协调配合工作。

由转动部分和静止部分两个方面组成。转子包括主轴、叶轮、动叶片和联轴器等。静子包括进汽部分、汽缸、隔板和静叶栅、汽封及轴承等。
汽缸
汽缸是汽轮机的外壳，其作用是将汽轮机的通流部分与---隔开，形成封闭的汽室，---蒸汽在汽轮机内部完成能量的转换过程，汽缸内安装着喷嘴室、隔板、隔板套等零部件；汽缸外连接着进汽、排汽、抽汽等管道。
汽缸的高、中压段一般采用合金钢或碳钢铸造结构，低压段可根据容量和结构要求，采用铸造结构或由简单铸件、型钢及钢板焊接的焊接结构。
高压缸有单层缸和双层缸两种形式。单层缸多用于中低参数的汽轮机。双层缸适用于参数相对较高的汽轮机。分为高压内缸和高压外缸。高压内缸由水平中分面分开，形成上、下缸，内缸支承在外缸的水平中分面上。高压外缸由前后共四个猫爪支撑在前轴承箱上。猫爪由下缸一起铸出，位于下缸的上部，这样使支承点保持在水平中心线上。
中压缸由中压内缸和中压外缸组成。中压内缸在水平中分面---开，形成上下汽缸，内缸支承在外缸的水平中分面上，采用在外缸上加工出来的一外凸台和在内缸上的一个环形槽相互配合，保持内缸在轴向的位置。中压外缸由水平中分面分开，形成上下汽缸。中压外缸也以前后两对猫爪分别支撑在中轴承箱和1号低压缸的前轴承箱上。
低压缸为反向分流式，每个低压缸由一个外缸和两个内缸组成，全部由板件焊接而成。汽缸的上半和下半均在垂直方向被分为三个部分，但在安装时，上缸垂直结合面已用螺栓连成一体，因此汽缸上半可作为一个零件起吊。低压外缸由裙式台板支承，此台板与汽缸下半制成一体，并沿汽缸下半向两端延伸。低压内缸支承在外缸上。每块裙式台板分别安装在被灌浆固定在基础上的基础台板上。低压缸的位置由裙式台板和基础台板之间的滑销固定。
转子
转子是由合金钢锻件整体加工出来的。在高压转子调速器端用刚性联轴器与一根长轴连接，此节上轴上装有主油泵和---跳闸结构。
所有转子都被精加工，并且在装配上所有的叶片后，进行全速转动试验和---动平衡。
套装转子：叶轮、轴封套、联轴节等部件都是分别加工后，热套在阶梯型主轴上的。各部件与主轴之间采用过盈配合，以防止叶轮等因离心力及温差作用引起松动，并用键传递力矩。中低压汽轮机的转子和高压汽轮机的低压转子常采用套装结构。套装转子在高温下，叶轮与主轴易发生松动。所以不宜作为高温汽轮机的高压转子。
整锻转子：叶轮、轴封套、联轴节等部件与主轴是由一整锻件削而成，无热套部分，这解决了高温下叶轮与轴连接容易松动的问题。这种转子常用于大型汽轮机的高、中压转子。结构紧凑，对启动和变工况适应性强，宜于高温下运行，转子刚性好，但是锻件大，加工工艺要求高，加工周期长，大锻件难以---。
焊接转子：汽轮机低压转子大，承受的离心力大，采用套装转子时叶轮内孔在运行时将发生较大的弹性形变，因而需要设计较大的装配过盈量，但这会引起很大的装配应力，若采用整锻转子，难以---，所以采用分段锻造、焊接组合的焊接转子。它主要由若干个叶轮与端轴拼合焊接而成。焊接转子轻，锻件小，结构紧凑，承载能力高，与尺寸相同、有中心孔的整锻转子相比，焊接转子强度高、刚性好，轻，但对焊接性能要求高，这种转子的应用受焊接工艺及检验方法和材料种类的---。
组合转子：由整锻结构套装结构组合而成，兼有两种转子的优点。
联轴器
联轴器用来连接汽轮机各个转子以及发电机转子，并将汽轮机的扭矩传给发电机。现代汽轮机常用的联轴器常用三种形式：刚性联轴器，半挠性联轴器和挠性联轴器。

空气压缩机是一种用以压缩气体的设备。空气压缩机与水泵构造类似。大多数空气压缩机是往---塞式，旋转叶片或旋转螺杆。离心式压缩机是非常大的应用程序。

空气压缩机（空压机）的种类很多。
1、按工作原理可分为三大类：容积型、动力型（速度型或透平型）、热力型压缩机。
2、按润滑方式可分为无油空压机和机油润滑空压机。
3、按性能可分为：低噪音、可变频、防爆等空压机。
4、按用途可分为：冰箱压缩机、空调压缩机、制冷压缩机、油田用压缩机、天然气加气站用、凿岩机用、风动工具、车辆制动用、门窗启闭用、纺织机械用、轮胎充气用、塑料机械用压缩机、矿用压缩机、船用压缩机、喷砂喷漆用。
5、按型式可分为：固定式、移动式、封闭式。
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