Endress+Hauser Prowirl Product Presentation ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ __________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 涡街的历史 1513 Leonardo Da Vinci 1912 Theodor von Karman 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 涡街形成的原理 P 低压 压力差 高压 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 涡街流量计的功能 d V p 传感器 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 涡街流量计测量原理 f = 涡街频率 V = 体积流量 V ~ f 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 差动电容式传感器 抗震动干扰 不易被阻塞 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 涡街流量计的应用 蒸汽 气体 液体 液体 蒸汽 气体 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 安装 影响流束分布的原因: • 没有遵守直管段要求 • 流量计与管道不同心 没有达到最小流量: • 干扰信号被误作流量 有振动存在: • 可能不明显 两相流: • 如潮湿的蒸汽或压力损失 造成的气蚀 ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ __________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 弯管后的直管段 单个弯头 两个弯头 不同平面的两个弯头 ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ __________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 直管段的安装 缩径 稳流器 ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ __________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 补偿测量点的安装 ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ __________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 冷热介质的保温 ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________ __________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 经验证的专利传感器 高抗振性能(1g,500Hz) 耐热冲击和水锤 所有口径传感器相同 不受介质含颗粒影响 ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ _______________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Features of Prowirl 77 sensors 高压型传感器: 接液部件: 镍铬铁高温合金 -200...+400°C 带包裹层 ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ _______________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 电容式传感器 抗振 长期稳定 耐温度冲击 抗水锤冲击 宽量程比 高精度 连接主板 极板 极板 用于测量涡街频率 的传感簧片 ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ _______________________________________________ 对应极板 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation HART PCB PFM PCB ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ _______________________________________________ TP 2: 原始信号 TP 12: 电极1 TP 3: 方波信号 TP 13: 电极2 TP 8: GND 2018/12/10 Endress+Hauser Prowirl Product Presentation

涡街传感器测试 传感器的电压反映了传感器的机械情况, 通过电路板上的测试点可以知道: 完好状态: -2 ...-3V 两极对称 机械损伤: 电压不对称 电极导线断路: -0.9V 电极导线短路: > -3.8V ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ _______________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 造成传感器经常故障的原因 水锤: 蒸汽管道中的冷凝水突然蒸发造成的高压冲击 流速过高: 液体流速超过9m/s, 蒸汽或气体流速超过75m/s. 腐蚀: 传感器材料受介质腐蚀(如氯等) ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ _______________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 更换传感器 严格按照操作说明书步骤 确认管道内没有压力, 处于放空状态 更换新密封圈 紧固螺丝一定要拧紧 避免传感器受到机械损伤 检查旧传感器的损坏原因, 避免再次发生故障 ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ _______________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 灵活的组态方式 就地 4...20 mA / HART 现场总线 ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ _______________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation 防爆类型 Ex i-型 两线制 适用于所有电气类型 电子部分和传感器可以在危险场合更换 可在危险场合设定和维护 Ex d-型 接线腔防爆 电子部分和传感器属本安等级, 故: 电子部分和传感器可以在危险场合更换 可在危险场合设定和维护 ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ _______________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation

Endress+Hauser Prowirl Product Presentation Questions ? Any Questions ? ? ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ ______________________________________________________________________________________________ _______________________________________________ 2018/12/10 Endress+Hauser Prowirl Product Presentation