Valve automation delivers centralised monitoring and control to pipeline network

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The project is installing a SCADA control system for the integration, monitoring and control of valves at more than 100 refining product, storage and injection sites on over 2500 kilometres of pipeline. Unlike oil pipelines that transport only crude oil, product pipelines such as these transport a range of liquid hydrocarbons.

该项目包括有必要用超过一百个遥远位置的阀门上的执行器代替手动变速箱。执行器规范要求进行独立的设计，适用于仅电力可用性有限的偏远，裸露位置。规范的进一步限制包括：

Self-locking drive mechanism to prevent valve positional drifting.

Permanent lubrication.

可调速度控制。

Manual operation.

Low gas consumption.

Operation available from stored gas energy source.

Compact overall dimensions.

After reviewing the available technologies, Rotork’s engineering department has been able to select the best solution with a standard product from the company’s fluid power actuation portfolio.

The Twin Power is a self-contained multi-turn actuator, operated either pneumatically or hydraulically. The mechanical design is based on either a bevel gearbox for linear valves or a worm gearbox for quarter-turn valves. The actuators on this project are designed to operate from stored nitrogen tanks, sized for three valve cycles. Three operating modes are available:

Remote control via a solenoid valve and stored nitrogen gas.

Local control via manual pushbuttons and stored nitrogen gas.

Local manual operation via a hand crank.

The electrical supply requirement is 12Vdc or 24Vdc, facilitating solar/wind powered renewable energy battery operation in remote locations. The actuators are supplied with an environmentally protected stainless steel control cabinet containing Local/Remote/Manual selectors, Open/Close pushbuttons, solenoid valves, manifold blocks, flow control valves, limit switches and electrical terminals.

新的旋转执行器以及已经安装在管道网络上的那些将在新的SCADA系统的运行中提供重要的ro。这将在设施的运行中产生更大的安全性，并减轻人员，当地社区和环境的风险。

该系统旨在集中对所有操作变量的监视，包括压力，温度和流体组成，所有这些都是液态烃的运输，储存和分布中的重要因素。

除了提高操作安全性外，产品存储现场设备的集成有望通过优化操作数据和信息的管理来提高效率和可靠性。SCADA系统将实时从地理分散区域获得，存储和处理数据，以确保及时交付精炼中心所需的原油以及满足分销和营销中心需求所需的精制产品。没有独立的执行器在远程位置操作阀并将其活动和状态传达给集中式控制系统的能力，这将是不可能的。