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二次再热技术自动化控制的成功应用,诞生出了全球效率最高的火电机组。而这项高精尖的技术又是如何诞生的
6月的泰州已经有了夏日的闷热感。走在长江边的国电泰州电厂内,不一会就会热的满身大汗。
这里是国内最早一批百万千瓦超超临界火电机组(国电泰州电厂一期两台机组)的所在地。而如今,国电泰州电厂二期、世界首台百万千瓦超超临界二次再热燃煤发电机组,是当今世界上发电效率最高、供电煤耗最低、环保指标最优的火电机组,代表了目前火力发电领域的最先进水平。
论起国电泰州电厂二期能够成为世界上发电效率最高、供电煤耗最低、环保指标最优的火电机组的首要功臣,非二次再热技术莫属。那么,让二次再热技术能够安全高效运转的首要功臣,则是北京国电智深控制技术有限公司研发的,针对燃煤火电机组二次再热技术的DCS系统。
DCS系统如何保障了国电泰州电厂二期、世界首台百万千万超超临界二次再热燃煤发电机组的高效运行这套完全自主知识产权、打破垄断的系统,又是经历了哪些困难才顺利诞生的
艰难诞生
“二次再热是煤炭清洁高效利用的一个有效途径。”北京国电智深控制技术有限公司副总经理黄焕袍对记者说,“二次再热在国外最早可以追溯到上世纪的60年代。但是国外在二次再热的利用方面单机最大装机容量大约只有70万千瓦。百万千瓦火电机组的二次再热是中国首创。”二次再热技术主要是通过在常规一次再热机组基础上增加一级再热器(锅炉)和增加超高压缸(汽机),进一步提高蒸汽参数(温度和压力)。这些参数提高之后,那么机组的燃煤效率、热循环效率和发电效率就提高了。
这就要求设备需要重新设计制造,设备流程也与之前有了较大的不同。可以说,百万千瓦二次再热机组是目前世界上结构最复杂的燃煤机组。
如此大规模和复杂的对象,对火电厂的控制系统提出了更高的要求。“最开始,我们对于让北京国电智深控制技术有限公司来开发这一套系统,是存在一定的疑惑的。”国电泰州发电有限公司副总经理张苏闽对《能源》杂志记者说,“我们当时倾向于让国外有过二次再热项目业绩的公司来做。”
火电厂控制系统开发企业数量多、竞争激烈。除了外企之外,还有数量不少的国内企业也参与了竞争。国电智深于2013年11月与国电泰州发电有限公司签订DCS与仿真供货服务合同,承担了该电厂DCS与仿真系统研发制造供货和工程应用服务。
国电泰州电厂二期百万千瓦超超临界机组二次再热项目是国家科技支撑计划项目——“高效率低排放的超600℃百万千瓦等级超超临界机组关键技术研究与工程应用”中,课题“二次再热1000MW超超临界机组关键技术工程示范”的依托示范工程。这是世界上首次在百万千瓦机组上采用超超临界、二次再热技术,是国家燃煤发电节能减排示范项目。
SIEMENS 6ES7 321-1BL00-0AA0 32 INPUT MODULE XLNT COND.
Siemens 6ES5 430-7LA12 -FS- 6ES54307LA12
SIEMENS TD400C 6AV6 640-0AA00-0AX06AV66400AA000AX0text display/HMI/New
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ALLENBRADLEY1794-OF4IOUTPUTMODULESERIESA
ALLEN BRADLEY T60 6160-PCD1
ABB K-line K1600S power air circuit breaker
ZENITH AUTOMATIC TRANSFER SWITCH, 400 AMP, 277/480 VOLT
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MITSUBISHI GT1595XTBA NSFP GT1595XTBA
ALLEN BRADLEY 1336VT-B075-EOT-L3 -S1 USPP 1336VTB075EOTL3S
GENERAL ELECTRIC CK12BE311J NSFP CK12BE311J
FORNEY 34623234 USPP 34623234
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RITTAL 3304.140 USPP 3304140
VAISALA SENSOR SYS MMT337 NSFP MMT337
Siemens 6ES5 525-3UA21 -- 6ES55253UA21
Siemens Analog Output Module 6ES5 470-7LC12 SURPLUS Opened Box
SIEMENS 6ES5-453-4UA12 USPP 6ES54534UA12
Siemens 6ES5 375-1LA15 NSFP 6ES53751LA15
Siemens S5 INPUT MODULE 6ES5-420-7LA11 6ES5420
Siemens CB24 COM BOARD 6RX1240-0AK01
SIEMENS 6ED1-053-1HH00-0BA1 NSFP 6ED10531HH000BA1
Square D 8030 GOM-221
Scientific Atlanta Intelligent Communications Interface Module P/N 4002258
WIC-2A/S CISCO 2-PORT ASYNC/SYNC SERIAL WAN INTERFACE CARD
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Schneider Modicon ASE908016 BRANDExecutive Module AS-E908-016
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Allen-Bradley - 2711P-K4M20A - NIB - 1 YEAR WARRANTY
ABB Circuit Breaker SACE S6N 800A 3P LI Trip Electronic
ADEPT TECH AWCII-040 NSPP AWCII040
(4970) Allen Bradley Servo Module 1771-HS3A 3Axis SEALED 4970
INDRAMAT MAC112C-0-ED-4-C/130-A-0/WI520LV/S005 USPP MAC112C0ED4C130f
TRANSTECTOR ACP100BW NSPP ACP100BW
FANUC A06B-6047-H041 USPP A06B6047H041
DEIF CM-2 USPP CM2
RELIANCE ELECTRIC 45C-322 USPP 45C322
NACHI RAX11-C USPP RAX11C
METRA INSTRUMENTS 610-0001-007 USPP 6100001007
Siemens 6ES5 393-0UA11 6ES53930UA11
Siemens 6ES5-762-3CS11 NSFP 6ES57623CS11
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Siemens RELAY OUTPUT MODULE 6ES5 452-8MR11
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Micro-Tech Scientific Ultra Plus Pump Controller Interface Module
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Reliance 0-52845
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MODICON PANELMATE PLUS INDUSTRIAL COMPUTER OPERATOR INTERFACE MM-PMA2400C
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ALLEN-BRADLEY 1771-OZL Reed Relay Contact Output Module 0 To 24V
ABB ACS 600 INVERTER UNIT AC DRIVE ACS60402106000B0000901
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SIEMENS TS31 NSFP TS31
BOSCH SM25/50-TCT USPP SM2550TCT
BAILEY CONTROLS NAMM-03 NSPP NAMM03
MODICON AS-S911-000 USPP ASS911000
KEYENCE CORP CV-501 NSFP CV501
CROUSE HINDS EPC43042WT30-3 USPP EPC43042WT303
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SIEMENS 6ES5 911-0AA31 6ES59110AA31
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HP Cerjac E6327A T1 Test Advisor DS1 VF Signaling Interface Module RS-449/232
XJ8 XK8 Jaguar Sat Nav System Interface Module
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Omron C500-ID218
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DNSES-AA EISA 2-LINE SYNC COMMUNICATION MODULE
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ADVANTECH 16-Channel Digital Input Module ADAM-5051
Allen-Bradley 8000 EEA 905720-03 Rev E interface
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accu sort axiom 400
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800' Pratt 250 250 3/0 250MCM Aluminum URD 600 Volt Triplex
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ALLEN BRADLEY 8520-4S10A-BATEX4S-1-2-3-4-5-7 USPP 85204S10ABATEX4S
ALLEN BRADLEY 6180-DICEGLDBECZ USPP 6180DICEGLDBECZ
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GENERAL ELECTRIC DS3860HAIC NSFP DS3860HAIC
YASKAWA ELECTRIC JANCD-MM13B NSFP JANCDMM13B
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TEXAS INSTRUMENTS 500-5184 INTERFACE MODULE MODBUS
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53 Vernier Software PH-DIN BGP EKG BAR CO2 DO COL TRB-BTA RH ISE LS FLO NO3
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700' Mobile Home Trailer 4/0 4/0 2/0 4 Direct Burial Wire Black Aluminum URD
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ALLEN BRADLEY 1779-KFM USPP 1779KFM
ALLEN BRADLEY 1336S-C010-AA-EN-HA1-L6 USPP 1336SC010AAENHA1
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STI OF4172BR USPP OF4172BR
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Robotron 503-1-0324-16 5031032416 I/O Module Rev E1
Telemecanique TSXFPACC4
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Wago 750-457 4-CHANNEL ANALOG INPUT MODULE
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Modicon AS-S902-131
Schneider Modicon DAP 217 AS-BDAP-217 Output
Schneider Modicon AEG/GOULD// AS-P120-000/042 403 424/7657 POWER SUPPLY NIB
Schneider Modicon AS-B875-111 ASB875111 Fast Shipping
Schneider Modicon AS-8534-000 AS8534000 800I/O
Schneider Modicon Modem Stand Alone AS-J478-010
Schneider Modicon AS-MBKT-085 Connector Adapter NIB
Schneider Automation Inc 140 DRA 840 00 140DRA84000 Output Module
SIEMENS 505-4208A INPUT MODULE 5054208A
Reliance Electric 57C416 0 Remote I/O Comm Mod 0-57416-T No Box
SIEMENS 6ES7900-0DA00-0XA0 NSFP 6ES79000DA000XA0
SIEMENS Sinumerik Power Supply 6EW 1861-3AB E Stand G
PHOENIX MCR-C-UI/UI-DCI COMMUNICATION INTERFACE MODULE
SIEMENS SERVO DRIVE 6SN1113-1AB01-OBA1
SIEMENS TAPE READER 6FC3984-1FC T40 F-NR NORTRA 15299 KDTK GN17862 USMT MILL CNC
SIEMENS 24VDC DMP COMPACT INPUT MODULE 6FC5111-0CA01-0AA0
AllenBradley1791-OB16/BBlockI/OOutputModule
Allen Bradley Solid State Timer Relay 700-RTC00000U1 WARRANTY
ABB MEM86-192K + 192KRM
ZINSCO 3034215HM 300 kVa 480 240 60HZ 3P transformer
(V7) 1 GENERAL ELECTRIC 16L0076WH3 CAPACITOR V7
MODICON 140-CPU-434-12 USPP 140CPU43412
ALLEN BRADLEY 1392-A040-RA-MC USPP 1392A040RAMC
GENERAL ELECTRIC DS3815PMMA1F1B USPP DS3815PMMA1F1B
FOXBORO 220S-2F6 USPP 220S2F6
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SCHRADER BELLOWS 008-4934 NSPP 0084934
WESTINGHOUSE A201K4CA-J1 USPP A201K4CAJ1
Siemens 6ES5 535-3MA12 6ES55353MA12
Siemens DIGITAL OUTPUT SIMATIC S5 6ES5-451-8MD11
SIEMENS 6ES5-454-7LA11 MODULE 6ES54547LA11
Siemens 6ES5 391-5AA13 Operating Control Panel 11207
Siemens S5 Memory SubModule 6ES5 372-0AA61 NIB
Siemens Controller RDE10.1 NIB