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1、Installation requirements,安装要求,LOGO,Contents,WORDS OF INSTRUMENTS,仪表盘布置图 instrument arrangement on panel模拟盘尺寸图 flow plan for graphic panel仪表供电及接地系统图 instrument power supply&grounding diagram联锁系统图 interlock block diagram仪表回路图 instrument loop diagram仪表导压管连接图 instrument pressure piping hook-up仪表蒸汽伴热管连接
2、图 instrument steam tracing hook-up分析仪器管连接图 analyzer piping hook-up控制室内仪表盘布置图layout of instrument panel in control room控制室内管线布置图layout of instrument wiring&piping in control room仪表主电缆桥架布置图layout of instrument main cable duct仪表主电缆布置图layout of instrument main cable仪表接线图layout of instrument wiring仪表空气配管
3、图（信号）layout of instrument air piping-supply air仪表空气配管图（供气）layout of instrument air piping-supply air仪表公用工程管线布置图layout of utility piping for instrument 仪表接地布置图 grounding layout for instrument 现场仪表布置图plot plan of field instrument仪表配管、配线区域划分图key plan for instrument layout drawing 仪表安装图 typical drawing
4、for instrument fabrication预制件制作图typical drawing for instrument fabrication仪表管线连接端子表instrument wiring&tubing connection list控制室内管线连接端子表instrument wiring&tubing connection list in control room仪表施工材料表material list for instrument,WORDS OF VORTEXMERERS,Swirl 漩涡 compliant 服从的，顺从的 recommended 被推荐的Sections
5、区域 indicate 指出，表明 sensor 传感器Interval 间距 avoidance 避免 vibration 震动Diameter 直径 radius 半径 identical 同一的，完全的Attenuation 变薄，衰减，稀释。Alternating 交替的，相互的Pulsating 颤动 fitting gate 填充门 piston 活塞Plunger 活塞 compressor 压缩机，压缩物 conveying 输送，传输Damping 阻尼，衰减，减幅 residual 剩余的 downstream 下游 frequency of the flow meter
6、流量计的频率 medium 中游upstream 上游 hydraulic 水力的，液压的 vessel 容器 cavitations 气穴现象 ambient 环境 take into account 考虑，重视downward 向下的，下降的 upward 向上的，上升的,examples,1:A vortex or swirl flow meter can be installed at any point in the pipeline system.However the following installation conditions must be considered.2:C
7、ompliant ambient conditions 适应环境的要求。3:Compliance with the recommended inflow/out flow sections.4:The flow direction must correspond to that indicate by the arrow(箭头标记)on the flow meter sensor.5:Compliance with the required minimum interval for removing the transmitter and replacing the sensor.6:avoi
8、dance of mechanical vibrations of the pipeline.,examples,7:the internal diameter of the flow meter sensor and the pipe must be identical.8:avoidance of pressure vibrations at zero flow by fitting gates at intervals in long pipeline system.9:attenuation of altering(pulsating 颤动)flow during piston pum
9、p or compressor conveying by using appropriate damping devices.the residual pulse must not exceed 10%.the frequency of the conveying equipment must not be within the range of the measuring frequency of the flow meter.10:valves/gates should normally be arranged in the flow direction downstream of the
10、 flow meter.If the medium is conveyed through piston/plunger pumps or compressors(pressure for fluids10bar(145psi)it maybe subject to hydraulic vibration in the pipeline when the valve is closed.if this does occur,the valve absolutely has to be installed in the flow direction upstream of the flow me
11、ter.Suitable damping devices(e.g.air vessels)might need to be fitted.,EXAMPLES,11:when fluids are measured the sensor must always be filled with media and must not run dry.12:when fluids are measured and during damping there must be no evidence of cavitation.13:the relationship between the temperate
12、 of the media and the ambient temperature has to be taken into account.14:at high media temperatures150C the flow meter sensor must be installed so that the electronics are pointing to the side or downward.,19.2 仪表控制,模拟信号analog signal数字信号digital signal反馈控制feedback control前馈控制feed forward control串级控制
13、cascade control超驰控制override control分配控制batch control顺序控制sequence control比例控制proportional control action积分控制integral control微分控制derivative control action两位式作用on-off control action正作用direct action反作用reverse action报警装置annunciate联锁装置interlock system计数器data logger巡回检测器scanner演算器computing element力平衡force balance位移平衡motion balance变送器transmitter仪表保温伴热一览表heating schedule仪表设备一览表instrument schedule,
