172PNN21022C
172PNN21022C
产品价格:¥260(人民币)
  • 规格:172PNN21022C
  • 发货地:福州
  • 品牌:
  • 最小起订量:1个
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    会员级别:钻石会员
    认证类型:企业认证
    企业证件:通过认证

    商铺名称:福州聚福兴自动化有限公司

    联系人:陈先生(先生)

    联系手机:

    固定电话:

    企业邮箱:20886962@qq.com

    联系地址:仓山

    邮编:350001

    联系我时,请说是在勒克斯之家上看到的,谢谢!

    商品详情

      172PNN21022C现货 in stock! 欢迎来电咨询~!!

      172PNN21022C,

      172PNN21022C

      172PNN21022C


       2015年9月28日,国神集团神东电力河曲发电公司2×350兆瓦低热值煤发电工程1号机组顺利通过168小时满负荷试运行并正式投入商业运营中。在项目1号机组进入168小时试运期间,机组负荷率达99.9%,机组运行平稳,各项指标优良,达到山西省超低排放指标。
        该项目是神华集团投产的首台、世界上投产的第2台350兆瓦超临界循环流化床机组,对循环流化床技术的可持续发展具有里程碑意义。
        工程概况
        该项目属山西省重点建设项目,以资源综合利用、发展循环经济为标志,充分利用当地煤矸石、煤泥等低热值煤及城市中水,具有节能、节水、环保等特点。该项目DCS系统包括两台主机、公用、辅网,实现全厂一体化控制。
      单元机组和公用系统I/O点:
        总计点数:6945*2+970=14860点(两台机组及公用点数)
        系统配置
        神华神东河曲工程包括#1机组和#2机组,其分散控制系统的控制范围包括单元机组、机组脱硫系统、辅网系统和公用系统。整个DCS系统按照HOLLiAS MACS的网络结构划分为#1机组、#2机组脱硫以及公用系统共四个域,并且与电厂管理信息系统(MIS)、监控信息系统(SIS)等留有通讯接口。
        和利时控制系统具有模拟量控制(MCS)、顺序控制(SCS)、锅炉安全监视保护(FSSS)、电气控制(ECS)、数据采集(DAS)、汽机旁路控制(BPC)等系统功能,以满足各种运行工况的要求,确保机组安全、高效运行。
        DCS控制系统硬件配置示意图(单元机组和公用系统)如下:
       DCS网络结构
        HOLLiAS MACS分散控制系统,可以划分为监控层和控制层两个层次。监控层的设备主要包括工程师站、操作员站、通讯站等;控制层的设备主要包括实现各种控制功能的控制站(包括远程控制站和远程I/O站)。工程师站、操作员站和通讯站等与系统服务器的互连,通过监控网(M-NET)使用以太网协议通讯,通讯速率100Mbps。控制站与系统服务器的互连,通过系统网(S-NET)使用HSIE网络协议,通讯速率10/100M自适应。HSIE网络协议基于可靠的工业以太网通讯协议,信息传输实时、可靠。控制站内部的数据通讯网络称为控制网(C-NET),控制网采用Profibus现场总线。使用Profibus-DP协议,通讯速率500Kbps,实现控制器与过程I/O模块的通讯,符合IEC61158国际标准。所有支持Profibus-DP协议的控制器(如PLC)和智能仪表只要提供相应的GSD设备文件,都能作为主控的从站与HOLLIAS MACS系统进行通讯。

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