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1769-IQ16F現(xiàn)貨 in stock! 歡迎來電咨詢~??！

　2015年9月28日，國神集團(tuán)神東電力河曲發(fā)電公司2×350兆瓦低熱值煤發(fā)電工程1號機(jī)組順利通過168小時滿負(fù)荷試運(yùn)行并正式投入商業(yè)運(yùn)營中。在項目1號機(jī)組進(jìn)入168小時試運(yùn)期間，機(jī)組負(fù)荷率達(dá)99.9%，機(jī)組運(yùn)行平穩(wěn)，各項指標(biāo)優(yōu)良，達(dá)到山西省超低排放指標(biāo)。
　　該項目是神華集團(tuán)投產(chǎn)的首臺、世界上投產(chǎn)的第2臺350兆瓦超臨界循環(huán)流化床機(jī)組，對循環(huán)流化床技術(shù)的可持續(xù)發(fā)展具有里程碑意義。
　　工程概況
　　該項目屬山西省重點(diǎn)建設(shè)項目，以資源綜合利用、發(fā)展循環(huán)經(jīng)濟(jì)為標(biāo)志，充分利用當(dāng)?shù)孛喉肥?、煤泥等低熱值煤及城市中水，具有?jié)能、節(jié)水、環(huán)保等特點(diǎn)。該項目DCS系統(tǒng)包括兩臺主機(jī)、公用、輔網(wǎng)，實(shí)現(xiàn)全廠一體化控制。
單元機(jī)組和公用系統(tǒng)I/O點(diǎn)：
　　總計點(diǎn)數(shù)：6945*2+970=14860點(diǎn)(兩臺機(jī)組及公用點(diǎn)數(shù))
　　系統(tǒng)配置
　　神華神東河曲工程包括#1機(jī)組和#2機(jī)組，其分散控制系統(tǒng)的控制范圍包括單元機(jī)組、機(jī)組脫硫系統(tǒng)、輔網(wǎng)系統(tǒng)和公用系統(tǒng)。整個DCS系統(tǒng)按照HOLLiAS MACS的網(wǎng)絡(luò)結(jié)構(gòu)劃分為#1機(jī)組、#2機(jī)組脫硫以及公用系統(tǒng)共四個域，并且與電廠管理信息系統(tǒng)(MIS)、監(jiān)控信息系統(tǒng)(SIS)等留有通訊接口。
　　和利時控制系統(tǒng)具有模擬量控制(MCS)、順序控制(SCS)、鍋爐安全監(jiān)視保護(hù)(FSSS)、電氣控制(ECS)、數(shù)據(jù)采集(DAS)、汽機(jī)旁路控制(BPC)等系統(tǒng)功能，以滿足各種運(yùn)行工況的要求，確保機(jī)組安全、高效運(yùn)行。
　　DCS控制系統(tǒng)硬件配置示意圖(單元機(jī)組和公用系統(tǒng))如下：
　DCS網(wǎng)絡(luò)結(jié)構(gòu)
　　HOLLiAS MACS分散控制系統(tǒng)，可以劃分為監(jiān)控層和控制層兩個層次。監(jiān)控層的設(shè)備主要包括工程師站、操作員站、通訊站等;控制層的設(shè)備主要包括實(shí)現(xiàn)各種控制功能的控制站(包括遠(yuǎn)程控制站和遠(yuǎn)程I/O站)。工程師站、操作員站和通訊站等與系統(tǒng)服務(wù)器的互連，通過監(jiān)控網(wǎng)(M-NET)使用以太網(wǎng)協(xié)議通訊，通訊速率100Mbps?？刂普九c系統(tǒng)服務(wù)器的互連，通過系統(tǒng)網(wǎng)(S-NET)使用HSIE網(wǎng)絡(luò)協(xié)議，通訊速率10/100M自適應(yīng)。HSIE網(wǎng)絡(luò)協(xié)議基于可靠的工業(yè)以太網(wǎng)通訊協(xié)議，信息傳輸實(shí)時、可靠。控制站內(nèi)部的數(shù)據(jù)通訊網(wǎng)絡(luò)稱為控制網(wǎng)(C-NET)，控制網(wǎng)采用Profibus現(xiàn)場總線。使用Profibus-DP協(xié)議，通訊速率500Kbps，實(shí)現(xiàn)控制器與過程I/O模塊的通訊，符合IEC61158國際標(biāo)準(zhǔn)。所有支持Profibus-DP協(xié)議的控制器(如PLC)和智能儀表只要提供相應(yīng)的GSD設(shè)備文件，都能作為主控的從站與HOLLIAS MACS系統(tǒng)進(jìn)行通訊。

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SQUARE D MHL3670035DC2351 NSFP MHL3670035DC2351

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A06B-6102-H222#H520 SPINDLE AMPLIFIER RATED INPUT 283-325V 25.2KW

8030RIM731 SQ D / SYMAX 8030-RIM-731 64 CH DIG IN

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