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艾默生PlantWeb®数字工厂架构使新发电机组提前九个月开始运营

2007年03月22日 15:30:00 中国传动网

匹兹堡 2007年3月20日消息——————艾默生过程管理公司宣布,其Ovation®专家控制系统已在邹县第七号发电机组成功运行。2006年早期,艾默生就赢得了在邹县发电厂为两组新1,000兆瓦的超临界机组安装拥有Ovation®专家控制系统的PlantWeb数字工厂架构和基金会现场总线技术的合同。华电国际邹县发电厂四期工程在中国发电厂中是第一个安装有监测和控制的基金会现场总线设备技术的发电厂。 邹县发电厂的7#发电机组在2006年12月4号成功地完成了连续168小时性能测试——对即将联机的新工厂来说是一个重要的里程碑,提前了9个月。试运行下的8#发电机组预期在2007年六月完这一里程碑式测试。 当四期工程完成,邹县发电厂在中国将成为最大的燃煤型发电厂,8#机组的预期发电量为4,540兆瓦。坐落在山东省的邹县发电厂,是中国华电集团为满足区域内日益增长的电力需要一个重要举措。对于四期工程艾默生的全面控制解决方案包括:总计64台冗余控制器、24套Ovation工作站、AMS™ Suite设备管理软件中的智能设管理软件以及130 多台基金会现场总线智能仪表,如Rosemount® 848T 温度变送器、水平流动压力传送器。Ovation 系统将管理30,000 多个I/O 点,对锅炉、汽机和外围设备实现数据采集、监测和控制。 邹县发电厂新发电机组是中国首批1000兆瓦发电机组。超临界发电机组应用高级的清洁煤技术充许在温度和压强升高的环境下操作。由于超临界技术可以把燃煤发电效率提高50%以上,同时又能达到环保的效果,因而它必将在中国获得更为广泛的应用。 由于热效率超过50%(典型的临界发电厂热效率为30%-38%),燃料转换率少于272.9 grams/KWh (0.60 lbs./KWh),烟气脱硫有效率超过95%以上,邹县7#发电机组在世界范围内是最清洁,最有效的和最先进的超临界发电机组。 中国华电厂高级工程师、热控主任张华说:“艾默生公司的系统在168小时的测试中表现极佳。事实上,Ovation system的平稳启动和其平稳性能,为独立结构贡献了创记录的22.6个月和试运转23天时间架构。” “通过一次又一次的考验,艾默生PlantWeb®数字工厂管控结构,不仅可以提高电厂的设备可利用率、热效率和运行效率,还能够降低维护成本和其它运行成本,最终提高电厂运行收益。”艾默生公司公用事业部(Power & Water Solutions)总裁Bob Yeager 说:“我们很高兴中国华电集团选择艾默生数字自动化解决方案,同时艾默生为艾默生的技术能为这一破记录里程碑事业出一份力而感到满足。” original text [COLOR=#708090]Emerson‘s PlantWeb® Digital Plant Architecture Contributes to Operation of New Generating Unit Nine Months Ahead of Schedule PlantWeb with Ovation® expert control system supports record-setting timeframe for construction and commissioning of one of China‘s first 1,000-MW Ultra-Supercritical Power Generating Units PITTSBURGH, PA (March 20, 2007) — Emerson Process Management announced today that its Ovation® expert control system has been successfully implemented at Zouxian Power Plant Unit 7. In early 2006 Emerson won a contract to install its PlantWeb? digital plant architecture with the Ovation® expert control system and FOUNDATION™ fieldbus technology at two new 1,000-MW ultra-supercritical units at the Zouxian Power Plant. The Zouxian Phase IV project, awarded by China Huadian Group Corp., represents the first installation of FOUNDATION fieldbus device technology for monitoring and controlling processes at a power generation facility in China. Unit 7 of the Zouxian facility successfully completed the 168-hour performance test – a significant milestone for new plants coming online – on Dec. 4, 2006 – roughly nine months ahead of schedule. Unit 8, still under commission, is expected to complete this milestone in June 2007. When Phase IV is completed, Zouxian Power Plant is expected to be the largest coal-fired plant in China, with eight units having a total generating capacity of 4,540 megawatts. Located in the Shandong Province, the plant is a critical component of China Huadian Group‘s efforts to meet the increasing demand for power in the region. Emerson‘s comprehensive control solution for Phase IV includes a total of 64 redundant controllers, 24 Ovation workstations, AMS™ Suite asset management software and more than 130 Foundation fieldbus intelligent devices such as Rosemount® 848T 8-input temperature transmitters, and flow, level and pressure transmitters. The Ovation system, which will manage nearly 30,000 I/O points, will provide data acquisition as well as control and monitoring of the boilers and balance of plant processes. The new Zouxian units are among the first ultra-supercritical units in China to have a 1,000-megawatt output rating. Ultra-supercritical plants use new advanced clean coal technology that allows operation at elevated steam temperatures and pressures. Ultra-supercritical technologies are expected to become more prevalent in China because they typically boost the efficiency of coal-based electricity generation by more than 50 percent, while maintaining superior environmental performance. With a thermal efficiency of more than 45 percent (compared with a typical subcritical plant thermal efficiency of 30-38 percent), a fuel conversion rate of less than 272.9 grams/KWh (0.60 lbs./KWh), and a Flue Gas Desulphurization (FGD) effective rate of more than 95 percent, Zouxian Unit 7 is among the cleanest, most efficient and most advanced ultra-supercritical units in the world. "The Emerson system performed extremely well during the 168-hour test,” said Hua Zhang, senior I&C engineer, China Huadian Group. “In fact, the smooth startup and performance of the Ovation system contributed to a record-setting timeframe of 22.6 months for unit construction and a mere 23 days for commissioning.” "We‘ve seen time and time again in other industries how the early adoption of PlantWeb digital plant architecture not only reduces construction and engineering costs, but also translates into ongoing operational efficiencies,” said Bob Yeager, president of Emerson‘s Power & Water Solutions division. We‘re pleased that China Huadian Group selected Emerson‘s digital automation solution and we are gratified that our technologies could play a role in the achievement of the unit‘s record-breaking milestones.” [/COLOR]
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