9F型燃机发变组控制数据的OPC通信功能应用

进口大燃气机组控制和数据采集往往采用内部专有的通信协议,未经授权无法与之进行通信并获取有关数据,加大了用户自定义功能扩展的难度。通过其提供的标准OPC接口,可经由OPC规范对运行状态进行设计和读取。以进口的9F型GE燃气轮机及其控制器为例,通过对OPC接口的通信技术解析,获取了燃机系统现场数据传输的结构,选用自动化接口方式编写OPC客户端,对服务器和客户端DCOM进行配置,实现了对现场多种设备不同数据的读取和准确传输,为进口燃机控制器的通信扩展提供了实践参考。

燃气轮机及燃气-蒸汽联合循环机组一次调频技术发展

针对燃气轮机及燃气-蒸汽联合循环机组一次调频技术的发展,综述了现阶段广大科研工作者从理论研究、现场试验研究及技术专利等方面取得的科研成果,指出了当下燃气轮机及燃气-蒸汽联合循环机组一次调频存在的问题,提出了广大科研工作者及生产技术人员尚需继续深挖其控制方式及应用,突破技术瓶颈。

Application of Modified Attapulgite Clay as the Adsorbent in Gasoline Desulfurization

Attapulgite clay is a kind of special silicate mineral with high adsorption capacity thanks to its loose structure and porous surface. In this paper, the attapulgite clay was treated effectively with acid under microwave thermal activation and ultrasonic vibration, respectively, and characterized by XRD, N2 adsorption, FT-IR and SEM. The desulfurization performance of the modified attapulgite clay was then evaluated by using simulated gasoline as the feed. The test results showed that the thiophene removal rate increased with an increasing dosage of hydrochloric acid during microwave modification of attapulgite clay. When the concentration of hydrochloric acid reached 15%, the increase of desulfurization rate became slower, and the desulfurization rate was about 69%.

9E燃气轮机一次调频优化

随着江苏省调“双细则”考核的推出,对燃气轮机电厂一次调频提出了硬性要求。华能金陵燃机电厂通过对现有一次调频逻辑的分析,发现了缺陷和不足,提出并实施了优化方案,满足了省调一次调频响应指数,避免了“双细则”考核,为厂里带来了可观的经济效益。

9FA燃气轮机排气温度测量元件优化

燃气轮机(以下简称燃机)排气温度是燃机运行时的重要监控参数,关乎燃烧系统的安全和燃烧工况稳定。燃机排气温度采用热电偶测量,热电偶元件的可靠性始终是热控维护关注的重点。从选型、安装等方面介绍了某电厂9FA型燃气轮机排气热电偶的优化,可为类似机组提供一定参考。