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　　工業(yè)循環(huán)水軋鋼工業(yè)中占有非常重要位，其水溫高低直接影響到加熱爐和軋機(jī)等設(shè)備安全和使用壽命。為及時(shí)準(zhǔn)確對循環(huán)水進(jìn)行監(jiān)控，萊鋼軋鋼廠中小型車間水處理采用浙大中控SUPCON JX—300X DCS控制系統(tǒng)。DCS控制系統(tǒng)把計(jì)算機(jī)、儀表和電控技術(shù)融合一起，實(shí)現(xiàn)了數(shù)據(jù)自動(dòng)采集、處理、工藝畫面顯示、參數(shù)超限報(bào)警、設(shè)備故障報(bào)警和報(bào)表打印等功能。并此基礎(chǔ)上開發(fā)了針對循環(huán)水溫溫度閉環(huán)控制。
　　2、系統(tǒng)介紹
　　SUPCON JX—300XDCS采用高速工業(yè)以太網(wǎng)Scnet作為其過程控制網(wǎng)絡(luò)，系統(tǒng)由工程師站、操作站、控制站、過程控制單元等組成，配置靈活。水處理系統(tǒng)規(guī)模，水處理SUPCON DCS系統(tǒng)設(shè)計(jì)了1個(gè)控制站，1個(gè)操作站設(shè)置安全級別可兼做工程師站)，構(gòu)成兩級結(jié)構(gòu)?？刂普臼乾F(xiàn)場級，直接與現(xiàn)場設(shè)備交換數(shù)據(jù)，完成整個(gè)工業(yè)過程實(shí)時(shí)監(jiān)控功能。操作站(兼工程師站)是監(jiān)督控制級，即可完成對系統(tǒng)組態(tài)、又可實(shí)現(xiàn)對現(xiàn)場級檢測、控制、保護(hù)功能管理。SUPCON JX—300X DCS系統(tǒng)SCKey組態(tài)軟件是一個(gè)全面支持該系統(tǒng)各類控制方案組態(tài)軟件平臺(tái)。 SCKey組態(tài)軟件可完成整個(gè)系統(tǒng)控制站組態(tài)(系統(tǒng)I/O組態(tài)、控制方案組態(tài)等)、操作站組態(tài)(畫面設(shè)置、系統(tǒng)流程圖組態(tài)、系統(tǒng)報(bào)表組態(tài)等)。系統(tǒng)構(gòu)成如圖1所示。
　　3.1 方案設(shè)計(jì)
　　從生產(chǎn)熱線循環(huán)回來工業(yè)水流入1#、2#吸水井散熱，并吸水井塔頂1#和2#風(fēng)機(jī)進(jìn)行降溫，然后1#、2#吸水井底部共用一個(gè)出水管為下一個(gè)工序供水，水溫要求控制30oC以下。本系統(tǒng)吸水井出水管處安裝Cu50熱電阻對水溫檢測，把溫度信號T1送入DCS處理器，控制規(guī)律運(yùn)算后給出控制信號，控制變頻器來改變電機(jī)輸入電壓頻率，來改變電動(dòng)機(jī)轉(zhuǎn)速，帶動(dòng)風(fēng)機(jī)降溫，構(gòu)成一個(gè)閉環(huán)溫度控制系統(tǒng)。變頻器選用兩臺(tái)日本SANKEN(300KW)通用型變頻器，控制原理如圖2所示。
　　循環(huán)水吸水井底部熱交換特點(diǎn)，對1#、2#吸水井兩臺(tái)風(fēng)機(jī)電機(jī)進(jìn)行主/副控制，主/副電機(jī)不同速度曲線驅(qū)動(dòng)風(fēng)機(jī)運(yùn)轉(zhuǎn)。1#、2#電機(jī)可互為主/副電機(jī)選擇，極大方便了操作工操作。
　　3.2 軟件實(shí)現(xiàn)
　　為方便操作人員操作，操作站創(chuàng)建循環(huán)水溫度監(jiān)控畫面，可線顯示循環(huán)水溫度、變頻器速度反饋、報(bào)警等，進(jìn)行1#、2#風(fēng)機(jī)電機(jī)啟?？刂坪椭?副選擇控制。并切換安全等級線修改主/副電機(jī)控制回路中溫度、轉(zhuǎn)速等控制參數(shù)。
　　針對循環(huán)水溫度調(diào)節(jié)存大滯后性特點(diǎn)，對1#、2#風(fēng)機(jī)電機(jī)采用分段控制方法，主/副電機(jī)控制曲線如圖3所示：當(dāng)循環(huán)水溫度低于20oC時(shí)，主/副風(fēng)機(jī)電機(jī)變頻器輸出電壓頻率均為20HZ。當(dāng)循環(huán)水溫度變高時(shí)，主控制回路中變頻器輸出電壓頻率跟隨增大，當(dāng)循環(huán)水溫度高于24oC時(shí)，主電機(jī)全工頻運(yùn)轉(zhuǎn)。副電機(jī)循環(huán)水溫度升至23oC時(shí)，副控制回路增大副電機(jī)輸入電壓頻率，提高風(fēng)機(jī)轉(zhuǎn)速，當(dāng)循環(huán)水溫度高于28oC時(shí)，副電機(jī)全工頻運(yùn)轉(zhuǎn)，與主電機(jī)一起為循環(huán)水快速降溫。

GENERAL ELECTRIC F47MI851110 USPP F47MI851110

JOHNSON CONTROLS MS-NAE4510-2 USPP MSNAE45102

STEARNS 1081011A2FBF USPP 1081011A2FBF

MEASUREX 094374-01 USPP 09437401

FANUC A16B-1211-0022 USPP A16B12110022

Siemens 6ES5 185-3UA11 6ES51853UA11

Siemens 6ES5-466-3LA11 NSFP 6ES54663LA11

SIEMENS 6ES5-095-8MA02 6ES5095-8MA02 CPU

SIEMENS S5 6ES56050UB11 6ES5 605-0UB11

Siemens 6ES5 095-8MA02 6ES50958MA02

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Siemens Stepdrive C+ 6FC5548-0AA02-0AA0

Siemens 6ES5377-0AA32

Inb Express 510T Switch 24-Ports External Switch Stack Interface Module

YOSHIMURA FOR POLARIS XP900RZR 2011

SIEMENS 6ES5925-3KA12

Siemens MP277-8 6AV6 643-0CB01-1AX1 Touch Glass

Oriental Motor SB31-IN-Q3

Schneider Modicon AS-B885-110/ASB885110 Beautiful

Schneider Modicon AS-516P-006 NSFP AS516P006

Schneider Modicon AS-M380-004 MEMORY CARTRIDGE ASM380004

Schneider Modicon AS-8533-003 NSPP AS8533003

Schneider Modicon +24VDC Input Module AS-B233-001

Schneider Modicon AS-B872-100 ASB872100

Siemens U25T Input Module

Schneider/Modicon 140CPS11420 CPS11420 NIB

Siemens Sinumerik 840 1P-6FC5103-0AD13-0AA0 1P6FC51030AD130AA0 _ 570-524-9101-00

SIEMENS 500-5016 ANALOG OUTPUT MODULE 5005016

SIEMENS SINUMERIK 810D/840DPCU20 6FC5210-0DF00-1AA1

CISCO WS-SVC-CMM-24FXS Communication Media Module -Tested-

SIEMENS SIMODRIVE 6SN1145-1BA02-0CA1SINUMETIK 840D NCU-BOX 6FC52476FC53576SN

SIEMENS SIMODRIVE 6SN1145-1AA01-0AA1SINUMETIK 840D NCU-BOX 6FC52476FC5356 BBA

Advantech MIO-260 MIO Module w/ 2 COM, 4 USB NIB

ALLEN-BRADLEY 2750-PA POWER SUPPLY

ABB 3HAB5957-1

ACCURAY 086266-001 SYS SCANNER VME CONTROL BOARD CARD VMEBUS 84698

A100615 Agilent E4406A Transmitter Tester 7MHz-4.0GHz (Opt. B78 BAC)

80C04-CR2 Tektronix Optical Sampling Module

SIEMENS 6ES5-927-3KA13 NSFP 6ES59273KA13

ASEA BROWN BOVERI 57275812 NSFP 57275812

ALLEN BRADLEY 8200014700 USPP 8200014700

LORAIN PRODUCTS ES281CMB NSFP ES281CMB

HILBERLING HN-800F USPP HN800F

ALLEN BRADLEY 1336F-CWF20-AA-EN-L4 NSPP 1336FCWF20AAENL4

RELIANCE ELECTRIC 0-57409-F NSPP 057409F

Siemens 6ES5-370-0AA31 USPP 6ES53700AA31

SIEMENS 6ES5 450-8MD11 6ES54508MD11

SIEMENS smatic S5 plc card 6ES5 262-8MA13 CLOSED LOOP Controller

Siemens Output Module 6ES5-451-8MR12 17031

Siemens 6ES7 291-8GE20-0XA0 Memory Module

SIEMENS OPM2 6SE3290-0XX87-8BF0 OPERATOR INTERFACE

PWR-C49M-1000AC 4900M AC POWER SUPPLY 1000 WATTS

GSM Modem Pool 16 Ports RS232 PCI interface Wavecom Module AT Commands Q2403

Tripp Lite B054-00-USB Server Interface Module-USB

SIEMENS 6AG1 322-1BH01-2AA0 6AG1322-1BH01-2AA0 FreeShip

Siemens IGBT Module BSM50GB100D

Modicon SW-AP5T-RTA

Schneider Modicon Gould AS-B350-001 Output Module ASB350001 AEG

Schneider Modicon ASJ890001 Excellent Remote I/O Processor Module AS-J890-001

Schneider Modicon AS-E380-902 USPP ASE380902

Schneider Modicon AS-P965-000

Schneider Modicon AS-884A

Schneider Modicon module AS-B825-016. 24 VDC INPUT TRUE HIH

Schneider TSX Premium TSXETY410 Interface Module ETY410

Schneider Modicon 467NHP811DP 467-NHP-811-DP Profibus-DP PCMIA 3

PowerCore CPCI-3750 Single Board CompactPCI Computer

SIEMENS 6ES5 440-8MA11 DIGITAL OUTPUT MODULE

SIEMENS 6FC5247-0AF11-0AA0 SINUMERIK 810D/840D PROFIBUS

HILSCHER CIF-50-PB COMMUNICATION MODULE INTERFACE CIF50PB

SIEMENS SIMODRIVE 6SN1146-1AB00-0BA1SINUMETIK 840D NCU-BOX 6FC52476FC5356 #2NC

SIEMENS Sinumerik 800M. 6FC3986-3EU Operator Panel.

SIEMENS 41-30 4130 Regulator 1/8" Moore Products 41-30 Regulator

Allen-Bradley Panelview 1200 Operator Interface 2711-TC1X

5820-EIA ALLEN BRADLEY ETHERNET INTERFACE

ABB Upper arm cable with connections for Irb 6400; Part# 3HAC3098-1

A06B-0153-B184#7275 FANUC SERVO MOTORS REMANUFACTURED

746C142A21 ABB PT-15 1750VA 15kV 60:1 7200/120 Potential Transber - EOK

RELIANCE ELECTRIC 45C-110 USPP 45C110

ALLEN BRADLEY 1785-L86B USPP 1785L86B

ALLEN BRADLEY 150-B35NCD NSFP 150B35NCD

GETTYS M122-B30A-90YF-BZ USPP M122B30A90YFBZ

TRICONEX 4118 USPP 4118

TECH MOTIVE TOOL 49-4100-03C5 USPP 49410003C5

FOXBORO P0400DA-0P USPP P0400DA0P

Siemens 6ES5-103-8MA03/6ES51038MA03 with EPROM

SIEMENS 6ES5 373-1AA61 6ES53731AA61

SIEMENS 6ES5943-7UB21 6ES5 943-7UB21S5 CPU 943B Processor WARRANTY

Siemens 6ES5 755-3AA11 NSFP 6ES57553AA11

SIEMENS 6ES5 314-3UA11 6ES53143UA11

Siemens LOGO! Memory Card 6ED1 056-5CA00-0BA0 NIB

Retail Box LSI MR SAS 9261-8i 6GB SAS RAID

Texas Instruments 2702885-0001

Spirent Adtech 400309 AX/4000 ATM E1 Interface

VMware 1U Server AMD Istanbul SIX-Core 2.4GHz 32GB RAM

Siemens C79458-L2350-A1 ping Worldwide

Modicon AS-T984-103

Schneider Modicon AUTOMATION DEP 218 TSX COMPACT AS-BDEP-218 DISCRETE INPUT 115VAC

Schneider Modicon Automation GbdH TSX Compact AS B DEP 214

Schneider Modicon AS-BADU-205 NSFP ASBADU205

Schneider Modicon AS-B805-016 115VAC Input Module ASB805016

Schneider Modicon PLC Power Supply AS-P120-000

Schneider Modicon AS-S901-100 I/O Processor AIND/UVG

SCHNEIDER 140-DI0-330-00/140-DIO-330-00 TSX QUANTUM DIGITAL OUTPUT MODULE XLNT

SHARP JW-212N INPUT MODULE DC12/24 VOLT

Reliance 57416 57C416 Remote I/O Comm. Module NIB

Siemens 6ES7 322-5GH00-0AB0 OUTPUT MODULE 16DO 24-48VU

SIEMENS SINUMERIK 6FX1120-4BD04 6FX11204BD04

NRF24LE1 = NRF24L01 + MCU supply test procedures Wireless communication Module

SIEMENS SIMODRIVE 611 6SN1118-0DJ23-0AA2 NIB

SIEMENS SINUMERIK OP012 6FC5203-0AF02-0AAL Membrane Keypad

SIEMENS Gamma X-6FC Stringing Machines

ALLENBRADLEY1771OADOUTPUTMODULE16POINT120VAC

ALLEN BRADLEY SLC500 BASIC MODULE 1746-BAS C 1746BAS C

ABB PM511V16 3BSE011181R1 PR:E

YORK OPTISPEED DRIVE 790 HP ELECTRICAL CABINET

~ ~EXCELLENT~ P/N:5188169

MODICON AS-584L-231 USPP AS584L231

ALLEN BRADLEY 1395B/S-B65-D1-PZ USPP 1395BSB65D1PZ

GRAHAM 175H8858 USPP 175H8858

GE FANUC IC3600SIXH1 USPP IC3600SIXH1

SIEMENS 6SE6-430-2AD32-2DA0 NSFP 6SE64302AD322DA0

SIEMENS 6AV3-627-1QK00-0AX0 NSFP 6AV36271QK000AX0

ALLEN BRADLEY 1494V-DR622-A NSFP 1494VDR622A

Siemens 6ES5 922-3UA11 -- 6ES59223UA11

Siemens S5 6ES5 955-3LF41 POWER SUPPLY UNIT 5V 8 AMP

SIEMENS 6ES5-482-8MA11 USPP 6ES54828MA11

Siemens 6ES5 430-8MC11/6ES5430-8MC11 INPUT MODULE NIB

Siemens S5-100U 6ES5 931-8MD11 - FREE SHIPPING

Siemens DCS Module 6DS1703-8RR

SCHNEIDER TSXDMZ28DR TSX MICRO PLC I/O MODULE QUANTITY

Square D 8803-PS01

SIEMENS 6ES5312-3AB12 SIMATIC S5 INTERFACE MODULE 6ES53123AB12

WE SHIP SAME CISCO WS-C3750G-24PS-S CATALYST 3750G-24PS SWICTH 1 YR WARRA

SIEMENS 6GK7342-2AH01-0XA0 CP342-2 6GK7 342-2AH01-0XA0

Siemens TP27 6AV3 627-1NK00-2AX0 Touchscreen Glass

Schneider Modicon TSX AS WBXT 201 Bus Extension Cable

Schneider Modicon AS-BDAU-204 ORIGINAL BOX Compact Analog OUT ASBDAU204

Schneider Modicon AS-B814-001 NSFP ASB814001

Schneider Modicon PROGRAMMABLE CONTROLLER 884 AS-884A-311

Schneider Modicon AS-P190-212

Schneider Modicon AS-BDAP-210 8-Point Isolated Output Module NIB

SCHNEIDER TSXDSY16T2 OUTPUT MODULE TSXDSY16T2

SIEMENS 6ES7 321-1BH02-0AA0 INPUT MODULE 6ES73211BH020AA0

Samsung MMCRE28GTDXP-MVB01 128GB 1.8

SIEMENS DRMC-11-51 4720 POWER METER OPERATOR INTERFACE GOOD TAKEOUT

SIEMENS SINUMERIK 810 BOARD 6FX1126-1AA01

SHIMADZU CBM-10A COMMUNICATIONS BUS MODULE

SIEMENS 6SN1146-1AB00-0BA1 6SN1 146-1AB00-0BA1 SIMODRIVE 611 Infeed Module

SIEMENS 6SL3000-0DE21-6AA0 6SL3 000-0DE21-6AA0 Simodrive HFD Reactor

SIEMENS 6FC5114-0AA01-0AA2 6FC51140AA010AA2 version B

ALLENBRADLEYISOLATEDOUTPUTPLCMODULE1771-ODZFACTORYSEALEDC15-3-52

ALLEN BRADLEY X137860 NSFP X137860

ABB DSQC 323 8MB Memory Expansion Board 3HAB 5956-1 - Brand

ADI-TSSOP-AD5292BRUZ-20 IC good quality

(A13) 1 GOULD MODICON AS-M507-016 REV A3 MEMORY MODULE A13

INDRAMAT TWM1.1-100-300-W1/115 NSPP TWM11100300W1115

YASKAWA ELECTRIC CIMR-G3U4030 USPP CIMRG3U4030

FANUC A20B-0007-0045 USPP A20B00070045

EUROTHERM DRIVES 545-0490-8-8-1-010-0011-0-00 USPP 5450490881010001

RELIANCE ELECTRIC DSA-MTR-20A USPP DSAMTR20A

PACIFIC SCIENTIFIC R67HENA-R2-NS-NV-00 USPP R67HENAR2NSNV00

PHOENIX DIGITAL OCM-DPR-85-D-ST NSFP OCMDPR85DST

Siemens 6ES5 451-8MD11 6ES54518MD11

Siemens 6ES5-923-3UA11/6ES5923-3UA11 PCU MODULE NIB

SIEMENS 6ES5-420-4UA13 USPP 6ES54204UA13

Siemens 6ES5 451-7LA11 DIGITAL OUTPUT MODULE

Siemens S5 6ES5 431-8MA11

Siemens 6SL3040-0MA00-0AA1 NIB

Siemens 6ES7 323-1BL00-0AA0 -FS- 6ES73231BL000AA0

Spectrum Controls 8000STC-222

NEHB442ASP-N POWERLINK AS POWER INTERFACE MODULE

WS-X4515 CISCO CATALYST 4500 SUPERVISOR IV ENGINE W/2 GE

Siemens 6ES7 952-1KM00-0AA0 6ES79521KM000AA0 NoBox

Siemens S5 PLC Cable PC-TTY 6ES5734-1BD20 NIB

Reliance 1SU44003

Schneider Modicon GroupeAS-B846-001 Analog Multiplexer

Schneider Modicon AS-B266-501 NSFP ASB266501

Schneider Modicon AS-S291-011 NSPP ASS291011

Schneider Modicon AS-B863

Schneider Modicon AS-B804-116 ASB804116 B804-116 B804 115v

Modicon MM-16MP-001 Interface Panel AS-040A-003

SIEMENS S5 6ES5431-8MA11 Digital Input Module8DI 24V

Siemens 6ES5 470-7LC13 -FS- 6ES54707LC13

SIEMENS S5 6ES5 456-4UA12 Digital Output Module

SIEMENS 6FC5210-0DF05-0AA0 SINUMERIK PCU 50 6FC52100DF050AA0 NIB

SIEMENS SINUMERIK 880 6FX1121-2BA03 6FX11212BA03

SIEMENS 6SN1-114-0NB01-0AA0 USPP 6SN11140NB010AA0

SIEMENS SIMODRIVE 611 BOARD 6SN1118-0DJ21-0AA0 NIB

SIEMENS 6FC9320-5DB00 6FC93205DB00 Fast Shipping

Advantech PCA-6114P4-C REV.C2

ALLEN-BRADLEY 1771-OAD/C AC OUTPUT MODULE PLC S21C

ABB ADVAC 2000 Amp 15 KV AA3J2777XX000UP vacuum circuit breaker ANSI 2005

Adept 10338-53100 Rev P.A Dual B+ AMP

6SE3126-8CJ40 6SE-3126-8CJ40 MIDI MASTER MD1850/2

9669 Ft Raychem 55PC1224-24-2/6-9-F940 Cables 0.3/ft

STROMBERG SAFUI80F500 USPP SAFUI80F500

CUTLER HAMMER 92P00836-00 USPP 92P0083600

CDS PMI-4100 USPP PMI4100

NEMATRON CORP IWS-1934 USPP IWS1934

MITSUBISHI A2ACPUP21-S1 NSPP A2ACPUP21S1

FISHER ROSEMOUNT 667-34-3/4 NSPP 6673434

Siemens 6ES5 242-1AA32 6ES52421AA32

Siemens 6ES5-470-4UC13 USPP 6ES54704UC13

SIEMENS 6ES5-188-3UA12/6ES5188-3UA12 RACK XLNT

SIEMENS S5 Interface Module 6ES5 318-8MB12

Siemens 6ES5 315-8MA11 6ES5315 8MA11

Siemens 6ES7901-1BF00-0XA0 TP27 Download Cable FreeShip

SIEMENS touch panel 6AV3627-1QL01-0AX0 TP27-10

Siemens 6ES5431-7LA11

iPhone Android Samsung iPod Bluetooth Interface module Volvo car kit VOL01A3

YOSHIMURA PIM2 PERIPHERAL INTERFACE MODULE HONDA CRF250R 2010-11

Siemens 6ES7 134-4GB01-0AB0 6ES7134-4GB01-0AB0

Siemens OEM-OP37 6AV3 637-7AB16-0AM0 Membrane Keypad

Parker AXL-DRIVE

Schneider Modicon AS-B875-111 Analog Input B877-111 ASB875111

Schneider Modicon AS-521P-007 USPP AS521P007

Schneider Modicon AS-M484-204 USPP ASM484204

Schneider Modicon AS-8535-000 NSPP AS8535000

Schneider Modicon 16 POINT 115V OUTPUT MODULE AS-B804-016 LOT OF 3

Schneider Modicon DEP210/AS-BDEP-210 INPUT MODULE NIB

SIEMENS TI TEXAS INSTRUMENTS 505-4332 INPUT MODULE

Schneider/Telemecanique Inverter ATV312HU15N4 NIB

Siemens SIMULATOR MODULE INPUT/OUTPUT 6ES5-788-8MA11

Siemens 4700-BDRMC3-11HN Power Meter Software Ver 2.3.0.4 White Digital Readout