在采用調(diào)節(jié)閥控制液位時，這種來油量的干擾會導致原油緩沖罐的液位有較大的波動，也就是說液位控制回路的余差變大，遠遠超出了工藝要求的范圍。在此種情況下，雖然可以通過增大比例作用來克服這種不利情況，但增大比例作用的副作用會使控制回路的穩(wěn)定性變差，嚴重時發(fā)生等幅振蕩甚至發(fā)散振蕩的情形。采用變頻器后，可根據(jù)系統(tǒng)的運行情況，適當改變變頻器的〔加速/減速時間設定〕選項，當加速/減速時間設定得較小時，受控變量（液位信號）有一個小變化，變頻器的輸出信號就有較大的響應。反之，當加速/減速時間設定的較大時，變頻器的輸出信號響應會比較緩慢。
根據(jù)上位機從下位機上得到的實時液位曲線，利用經(jīng)驗法很快就可以完成控制回路IPD參數(shù)的調(diào)整。采用變頻器和提升泵的組合來代替調(diào)節(jié)閥來控制緩沖罐的液位后，系統(tǒng)抗干擾能力得到加強，魯棒性也得到進一步提高，徹底**了因來油的擾動而造成的液位大幅波動現(xiàn)象，控制回路的各項性能指標一**偏差、回復時間和余差都得到了較大提高。
改造后的控制回路取消了氣動薄膜調(diào)節(jié)閥，節(jié)省了氣動薄膜調(diào)節(jié)閥的投入費用；由于變頻器的引入，提升泵的運行狀況得到了較大的改觀，檢修周期也大大地延長，節(jié)約了提升泵的維修費用；而且采用變頻器后，提升泵會根據(jù)緩沖罐液位的變化情況來變頻運行，節(jié)約了大量的電費，取得了可觀的經(jīng)濟效益。從系統(tǒng)改造至今，系統(tǒng)一直正常運行。實踐證明這次改造是成功的，隨著變頻器性能的不斷發(fā)展和完善，變頻器的應用也越來越廣泛。聯(lián)合站液位控制系統(tǒng)的改造是諸多成功應用實例中的一例，希望這項工作能對國內(nèi)同行有一些啟示和幫助，為推進變頻器的應用起到一定的作用。
漳州鼎晟達自動化設備有限公司是一家多年專業(yè)從事大型進口系統(tǒng)（集散式控制系統(tǒng)、可編程控制器、冗余容錯控制系統(tǒng)、機器人系統(tǒng)）備件銷售。長年與歐美，北美等全球知名工業(yè)廠商建立起穩(wěn)定的合作關系，產(chǎn)品直接國外進口，省掉中間環(huán)節(jié)，為廣大企業(yè)用戶節(jié)約開支！目前公司業(yè)務遍布全國各省市，經(jīng)過多年的服務，總結(jié)出專為系統(tǒng)用戶服務的成熟模式，實現(xiàn)服務的人性化、流程的簡單化以及管理的規(guī)范化，**幫助客戶延長電氣設備的使用周期，降低運營成本，控制停產(chǎn)風險、提高生產(chǎn)效率！主營國際知名品牌工控系統(tǒng)備件：AB SLC500,PL5，ABB機器人，GE，F(xiàn)OXBORO I/A，TIRCONEX，瑞恩，西屋OVATITONT，西門子,MOORE，MODICON,KUKA機器人，安川機器人，貝利，貝加萊，博世傳動，HONEYWELL。
長期以來，公司堅守“重視合同 , 確保質(zhì)量 : 準時交付 , 嚴守承諾” 經(jīng)營理念；以極大的熱情致力于創(chuàng)造和實現(xiàn)富**力的企業(yè)管理模式；運用先進的計算機管理系統(tǒng)，建有完善的信息化管理平臺，為采購、管理、銷售、服務等各個業(yè)務環(huán)節(jié)的信息化服務，大大增強了企業(yè)核心競爭力。
***************漳州鼎晟達自動化設備有限公司***************
聯(lián)系人：林朝藝（銷售經(jīng)理）
手機 ：18105962758
QQ ：2880842795
郵箱 ：2880842795@qq.com
傳真 ：0596-3119658（請備注林工收）
-----------------------------------------------------------------------------
FANUC A20B-1000-0570-R PC BOARD ***RFB*** FANUC A20B-1000-0570/05B PC BOARD ***XLNT*** FANUC A20B-1000-0560/11F SERVO ANALOG TOP BOARD FANUC A20B-1000-0560/11F SERVO ANALOG TOP BOARD FANUC A20B-1000-0560/11F SERVO ANALOG BOARD Fanuc A20B-1000-0560/11F Board A20B1000056011F - Fanuc A20B-1000-0560/10E Velocity control unit ungebraucht !!! FANUC A20B-1000-0560/10E SERVO ANALOG BOARD A20B1000056010E, A20B-1000-0560 FANUC A20B-1000-0560/07D SERVO ANALOG BOARD A20B-1000-0560 Fanuc A20B-1000-0560/07D Analog Servo Control Board FANUC A20B-1000-0560/01A SERVO BOARD AC ANALOG DAUGHTER A20B-1000-0560 Fanuc A20B-1000-0550.12E Motherboard / Karte FANUC A20B-1000-0320.06D FAPT PCB FANUC A20B-1000-0320 BOARD A20B10000320 NAKAMURA TMC-2 CNC LATHE FANUC A20B-1000-0270 01A F3TF PC BOARD REPAIRED & TESTED WITH A 30 DAY WARRANTY Fanuc A20B-1000-0030/08A PC Board Power Supply Fanuc A20B-0801-C012 FANUC A20B-0228-B502 A20B0228B502 Fanuc A20B-0098-B512 Mother Board Fanuc A20B-0060-C031, MatsushitaTR-9DK1, A61L-0001-0072 Fanuc A20B-0051-C541 Option Unit FANUC A20B-0045-C002 A02B0045C002 w/ A20B-0005-0732 FANUC A20B-0010-0130/0* PC BOARD A20B-0010-0130, A20B001001300* FANUC A20B-0010-0130/04A PC BOARD A20B-0010-0130, A20B0010013004A FANUC A20B-0010-0130 02A PC BOARD REPAIRED & TESTED 30 DAY WARRANTY Fanuc A20B-0009-320/03B Board (Inv.22802) FANUC A20B-0009-0930/09C MOTHER BOARD W/ A20B-0009-0940/07A PCB MEMORY CARD FANUC A20B-0009-0521/01A * * Fanuc A20B-0009-0320/12D Graplhic MPG A20B-0009-032/12D Fanuc FANUC A20B-0009-0320/11D CIRCUIT BOARD FANUC A20B-0009-0150 A20B00090150 Fanuc A20B-0009-015 0/08B I/O Board FANUC A20B-0009-0140/ 07C MOTHER BOARD MASTER BOARD Fanuc A20B-0009-0051 - 03A FANUC A20B-0009-0022 A20B00090022 FANUC A20B-0008-0741 A20B00080741 Fanuc A20B-0008-0640 PCB (A20B00080640) Printed Circuit Board A20B-0008-0640/02A Fanuc A20B-0008-0630 A PCB with 12 month warranty Fanuc A20B-0008-0540/01A I/O-Board FANUC A20B-0008-0540/01A I/O TERMINAL UNIT 4 STRIPPIT FABRI-CENTER A20B-0008-054 Fanuc A20B-0008-0540/01A I/O Module Board FANUC A20B-0008-0540/01A CIRCUIT BOARD Fanuc A20B-0008-0540/01A FANUC A20B-0008-0540 /01A I/O Board FANUC A20B-0008-0540 / 01A, I/O BOARD FANUC A20B-0008-0540 / 01A, I/O BOARD FANUC A20B-0008-0540 / 01A, I/O BOARD Fanuc A20B-0008-0540 / 01A I/O Board Fanuc A20B-0008-054/01A A350-0008-T544/01 Control Module A20B000805401A Fanuc A20B-0008-054 I/O Fanuc A20B-0008-0500-1A M-M Interface "Warranty" Fanuc A20B-0008-0500 / 01A M-M Interface Board from 6TB control Fanuc A20B-0008-0480/03A (A20B-0008-0480) 6 ROM Memory PCB A20B00080480 Fanuc A20B-0008-0480/01A Memory Board A20B0008048001A - Fanuc A20B-0008-0480/01A A350-0008-T484/01 FANUC A20B-0008-0480 Board FANUC A20B-0008-0480 /03A ROM Board Fanuc A20B-0008-0480 Fanuc A20B-0008-0470/06C PC Board Fanuc A20B-0008-0470 Fanuc A20B-0008-0461/04A Resolver Board Fanuc A20B-0008-0461/04A Resolver Board FANUC A20B-0008-0461/04A RES/IND FANUC A20B-0008-0461 /04A RES/IND Board Fanuc A20B-0008-0440-03A PC Model B "Warranty" Fanuc A20B-0008-0440 / 03A PC Board FANUC A20B-0008-0430-0* CRTC/Puncher FANUC A20B-0008-0430/06A CIRCUIT BOARD Fanuc A20B-0008-0430/0* Puncher Circuit Board Fanuc A20B-0008-0430/0* Fanuc A20B-0008-0430/02A Fanuc A20B-0008-0430, Fanuc CRTC Puncher FANUC A20B-0008-0430 CRTC/ PUNCHER BOARD FANUC A20B-0008-0430 / 0* TESTED WARRANTY Fanuc A20B-0008-0430 / 0* CRTC / Punscher FANUC A20B-0008-0410/03B CIRCUIT BOARD Fanuc A20B-0008-0410 Master board, Fanuc 6TB Fanuc A20B-0008-0410 Master board, Fanuc 6MB FANUC A20B-0008-041 0410 MOTHER BOARD PCB A20B00080410 FANUC A20B-0008-0243/0204A PC BOARD A350-0008-T244/06 AS0B00080243 A3500008T244 FANUC A20B-0008-0243/0204A PC BOARD A350-0008-T244/06 AS0B00080243 A3500008T244 FANUC A20B-0008-0242 A20B00080242 FANUC A20B-0008-0242 A20B00080242 Fanuc A20B-0008-0242 Spindle Orientation Board FANUC A20B-0008-0241 A20B00080241 FANUC A20B-0008-0032 A20B00080032 FANUC A20B-0008-0032 /03A PC BOARD A20B00080032 FANUC A20B-0008-0031/04A *NICE* FANUC A20B-0008-0031 03A ORT. PC BOARD REPAIRED & TESTED 30 DAY WARRANTY Fanuc A20B-0008-0030/05C Spindle ORIENTATION BOARD Fanuc A20B-0008-0030/05C Karte FANUC A20B-0008-0030/02 CIRCUIT BOARD FANUC A20B-0008-0030 A20B00080030 Fanuc A20B-0008-0030 Spindle Orientation Board Fanuc A20B-0008-0030 PC BOARD SPINDLE ORIENTATION FOR SERIES 0 CNC Fanuc A20B-0008-0030 /04C Spindle Drive Top Card Fanuc A20B-0008-0030 / 0203B Karte Fanuc A20B-0008-0030 / 0202B Karte Fanuc A20B-0007-0441-03 CNC Keypad [PZ1] Fanuc A20B-0007-0361/06A Servo PC Board Volocity Control Fanuc A20B-0007-0361/0* board Fanuc A20B-0007-0361/04A Z Axis PCB Fanuc A20B-0007-0361 / 06A PC Board Fanuc A20B-0007-0361 / 04A PC Board Fanuc A20B-0007-0360 / 12A PC Board Fanuc A20B-0007-0360 / 06A PC Board Fanuc A20B-0007-0360 / 0* PC Board Fanuc A20B-0007-0360 / 04A PC Board Fanuc A20B-0007-0360 / 03A PC Board Fanuc A20B-0007-036 Board Made in Japan A20B A-TC05 A-DV24 A350 Fanuc A20B-0007-036 (A350-0007-T362/03) Fanuc A20B-0007-0270 / 01A, PC Board, , WARRANTY FANUC A20B-0007-0151 BOARD PCB A20B-0007-0151 ELOX FANUC EDM CNC FANUC A20B-0007-0150 /04A komplett Board Fanuc A20B-0007-0090/09F ADD Axis Board Fanuc A20B-0007-0090/08E Circuit Board Fanuc A20B-0007-0090 Printed Circuit Board (A20B00070090) PCB Fanuc A20B-0007-0090 Axis Board with 12 month warranty FANUC A20B-0007-0090 A20B 0007 0090 08E A20B00070090 ADD.AXIS Fanuc A20B-0007-0090 / 04B ADD AXIS Board Fanuc A20B-0007-0070.06B System Board Fanuc A20B-0007-0070 CRTC Board with 12 month warranty FANUC A20B-0007-0070 /06B CRT BOARD Fanuc A20B-0007-0070 / 06B System Board Fanuc A20B-0007-0070 / 06B Circuit Board Fanuc A20B-0007-0070 / 05B System Board Fanuc A20B-0007-0070 Fanuc A20B-0007-0061.01A Control Board Fanuc A20B-0007-0061 /01A System Board A20B00070061 Fanuc A20B-0007-0061 / 01A System Board Fanuc A20B-0007-0061 / 01A Karte Fanuc A20B-0007-0061 - 01A PCB Circuit Board FANUC A20B-0007-0060 A20B00070060 Fanuc A20B-0007-0060 System Board A20B00070060 01A **not ** Fanuc A20B-0007-0060 Control Board A20B00070060 /03A **not ** Fanuc A20B-0007-0060 Control Board A20B00070060 /02A **not ** Fanuc A20B-0007-0060 Control Board A20B00070060 /01A **not ** FANUC A20B-0007-0040/03A CNC I/O RELAY BOARD FANUC A20B-0007-0040/03A CNC I/O RELAY BOARD Fanuc A20B-0007-004 I/O Board FANUC A20B-0007-0020/02A A20B0007002002A A20B-0007-0020 A20B00070020 AVO1 Fanuc A20B-0007-0010/04B Motherboard Fanuc A20B-0007-00090 ( F ), Fanuc ADD. Axis ( P/C ) FANUC A20B-0007-?0270 /01A A20B00070270 A20B00070270 FANUC A20B-0007-?0270 /01A A20B00070270 A20B00070270 FANUC A20B-0006-0882 SPINDLE DRIVE TOP BOARD NAKAMURA TMC-4 CNC LATHE Fanuc A20B-0006-0760/02A Power Supply Board Fanuc A20B-0006-0640 CMOS Control A20B00060640 not ** fanuc a20b-0006-0450 Fanuc A20B-0006-0420/15D A20B-0006-042015D FANUC A20B-0006-0190 /02B A20B00060190 FANUC A20B-0005-0980 /06B A20B00050980 POWER RECTIFIER BOARD FANUC A20B-0005-0740 /04C A20B00050740 Fanuc A20B-0005-0740 / 04C PC Board, , WARRANTY
資訊來源：漳州鼎晟達自動化設備有限公司
|
您當前的位置: 首頁 > 行業(yè)資訊
