PPE091A101电动机瓦振：每个滚动支持轴承上配置两个瓦振测点（水平和垂直方向安装），采用本特利330500系列Velomitor压电式振动速度传感器进行测量2.本特利bently3500配置要求每套关键压缩机组配备本特利350本特利bently冗余的3500/15电源模块本特利bently3500/22M瞬态数据接口模块（RJ45网络接口）每台机组的本特利3500框架内配置相应的3500/25键相模块往复式压缩机曲轴箱振动、十字头振动、以及轴承振动振均配置相应的3500/70M监测器模块活塞杆位置测点，需配置相应的3500/72M监测器模块

往复式压缩机气缸动态压力配置相应的3500/77M监测器模块
 
　　轴承温度和气阀温度测量点，需配置相应的3500/60、/61、/62或/65监测器模块
 
　　齿轮箱壳振和电动机瓦振，需配置相应的3500/42M监测器模块
 
　　每个监测通道配置D立的两个继电器输出通道；采用3500/32（4通道）或3500/33（16通道）继电器模块本特利bently一个3500/92Modbus通讯网关,对于工作在危险区的机组，接入现场信号的3500监测器模块要带有内置安全栅；并且3500框架内要配置3500/04本安接地模块。
 
　　本特利bently3500旋转机械振动保护仪表和状态监测系统的产品质量严格遵循美国API670标准。
本特利振动监测培训教程，本教程的主要内容：位移传感器噪声源
 
　　噪声是一种你不需要的信号，但多数情况下，在测量过程中，噪声是无法避免的。尽管在测量过程中无法除噪声，但可以将噪声降低到Z小程度，使其不影响你对信号的分析。要做到这一点，就要了解噪声的来源和特征。噪声是一种不合乎需要的信号成分，它可以歪曲数据，妨碍你从数据中提取机器状态信息的能力，包含的信息与机器的状态无关。噪声可以从测量系统的一个环节引入振动信号，但系统各个部分对噪声的敏感程度不同。本特利位移传感器包括bently3300系列的涡流传感器探头。
 
　　位移传感器噪声源
 
　　1·安装：传感器支架振动5、偏差（runout）–机械偏差
 
　　位移传感器噪声源
 
　　偏差（runout）–电偏差合金元素不均匀导电性不均匀导磁性不均匀轴材料局部应力集中轴上存在局部磁化区域
 
　　位移传感器噪声源
 
　　偏差（runout）与运行时间–短时间机械偏差和电偏差是稳定的
 Typical vibration measuring points of Bently 3500 are arranged as follows:



The front and rear bearing housings of the motor are equipped with shell vibration sensors to measure the j-pair vibration of the motor bearings. The low-speed end and Gao speed end of the gearbox are respectively equipped with shell vibration sensors to measure the j-pair vibration of the gearbox. The X-Y direction eddy current sensor system at the front and rear of the compressor is used to monitor the shaft vibration. In addition, a set of eddy current sensor system is used to measure the displacement of the compressor shaft, and a set of eddy current sensor system is used to measure and monitor the Keyphasor. The system configuration of vibration monitoring products is as follows:



Centrifugal compressor – driven by steam turbine



For units working in hazardous areas, Bentley sensors and monitoring system shall be provided with multi agency approval unit option. However, there is no requirement for the unit working in the safe area.



1. Measurement point configuration requirements



Keyphasor: each shaft system with the same speed of the compressor unit is equipped with a Keyphasor measuring point; Bentley 3300xl series eddy current sensor is used for measurement.



Shaft vibration: each sliding support bearing is equipped with a pair of shaft vibration measuring points in the X / Y direction (perpendicular to each other), and Bentley 3300xl series eddy current sensors are used for measurement.



Axial displacement: each thrust bearing of the compressor unit is equipped with double redundant axial displacement measuring points; Bentley 3300xl series eddy current sensor is used for measurement.



Pad vibration (optional): each rolling support bearing is equipped with two pad vibration measuring points (installed in horizontal and vertical directions), and Bently 330500 series velomitor piezoelectric vibration speed sensor is used for measurement.



Gearbox shell vibration (if applicable): a pair of X / Y direction shell vibration measuring points are arranged at the support bearings of input and output shafts of each gearbox; Bentley 330400 series piezoelectric vibration acceleration sensor is used for measurement.



Overspeed protection (optional): each compressor unit is equipped with three redundant overspeed protection measuring points, which are measured by 3300xl series eddy current sensors. 2. Bently 3500 configuration requirements



Each key compressor unit is equipped with Bentley 3500 frame; Bently 35003500 / 15 power module;



Bentley 35003500 / 22m transient data interface module; Bently 35003500 3500 / 25 Keyphasor module



Bently 35003500 3500 / 42m monitor module for the above shaft vibration, shaft displacement, pad vibration and shell vibration measurement points



(if applicable), 3500 / 53 three redundant monitoring modules shall be used for overspeed protection monitoring and measuring points, and each monitoring channel (shaft vibration, shaft displacement and pad vibration) shall be configured with two relay output channels of vertical D; Bently Bently 35003500 / 32 (4 channels) or 3500 / 33 (16 channels) relay module is adopted, and Bently Bently 35003500 / 92 Modbus communication gateway



For units working in hazardous areas,