IC697MDL250

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描述

IC697MDL250

水輪機筒閥由法國NEYRPIC公司于1962年用于真機以來,通過一些中小水輪機的應用實踐,逐步得到了完善。到1979年加拿大當時最大的水電站LG-2,16臺出力為338.5MW的大型混流式水輪機采用了圓筒閥之后,它的應用開始引起各國的注意,許多優(yōu)點得到公認。因此,被越來越多的水電站采用。它的主要優(yōu)點有:1、安裝在固定導水葉與活動導水葉之間,同安裝在蝸殼前的球閥、蝶閥相比,縮短了整個廠房的縱向長度,降低了工程造價;2、密封性更好,能有效抑制了導葉漏水對導葉的磨損。3、開啟、關(guān)閉時間短,能更好地適應電力系統(tǒng)對水電廠快速開機的要求并能有效地防止事故情況下的機組過速。4、能消除機前閥門進出口處的收縮和擴散段伸縮節(jié)的附加水力損失。5、圓筒閥啟閉為直線運動,關(guān)閉時可根據(jù)水壓上升率調(diào)整關(guān)閉速度。而在圓筒閥的應用實踐中如何保證多只接力器的同步成為筒閥控制的關(guān)鍵技術(shù)問題。下面就這一問題闡述應用PLC技術(shù)實現(xiàn)同步的原理和方法。傳統(tǒng)的解決同步問題的主要方法采用接力器驅(qū)動鏈條同步,在筒閥圓周盡可能多地均勻布置多支液壓接力器,每支接力器動桿(活塞)下端連接固定在閥體上,活塞上下運動可以驅(qū)動閥門啟閉。各活塞的同步移動有由可逆?zhèn)鲃拥臐L動螺旋副實現(xiàn),它是在活塞上固定的一只滾動螺旋傳動的螺母,螺母連接傳動絲桿,當活塞上下移動時絲桿做正反旋轉(zhuǎn),絲桿上端連接齒輪將筒閥的垂直運動變?yōu)辇X輪的旋轉(zhuǎn),齒輪帶動鏈條一起連動其它接力器的齒輪同速旋轉(zhuǎn)并反作用于其絲桿而實現(xiàn)多只接力器的同步。此同步方案的缺點在于:1)、直徑大的筒閥將布置數(shù)量較多的接力器,增加整個系統(tǒng)的投資。2)、接力器油缸進油口無調(diào)節(jié)能力,均由調(diào)定的節(jié)流閥控制流量,接力器運行速度的調(diào)節(jié)控制沒有按調(diào)節(jié)規(guī)律運動的隨動性。3)、鏈條同步對發(fā)生異步的的油缸矯正能力差,易發(fā)生鏈條張力矩過載甚至拉斷,導致筒閥啟閉失敗。4)、由于油缸進油量由節(jié)流閥調(diào)整固定,筒閥只能定速啟閉,喪失了筒閥直線運動可按程序指定啟閉速度進行啟閉的優(yōu)勢。

產(chǎn)品承諾:
保?證?全新原裝進口,
保?證?安全準時發(fā)貨,
保?證售后服務質(zhì)量,
優(yōu)勢價格,大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門子,摩托羅拉,安川。力士樂。ACSO,橫河等進口品牌。 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家

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Heller Machine Tool 23-020018 Adapter Board

Giddings and Lewis 572-02721-50 ALU Board

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Mitsubishi BN624A283H04 CNC Module

Galil Motion Control DMC-1020 2 Axis With Strap

Stromag C1G-030-1BE Motor Controller – Used

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PCB Piezotronics 116B High Pressure Temperature sensor

Cincinnati Milacron 3-531-3221A Disc System Interface

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Heller A 23.032.248 10-Slot Rack Back Plane Module

Heller A 23.032.248 10-Slot Rack Back Plane Module A

Adept 90400-60131 300W Controller Amplifier

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Allen Bradley 7300-UAE I/O Multiplexer Module

Sony Magnascale MSD-701-1 Detector With Cables – NIB

SOLA HT5F6AS 30073355 Hevi-Duty Transformer

Giddings and Lewis 502-03093-00 CMOS Dual Bus Memory

Kollmorgen Ind PSR4/5A-112-000?2 Power Supply

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Lot of 48 Carboloy SNMG 433E48 Insert 2556-0211

Allen Bradley 8600-F18C Axis Manager CPU Module

Kollmorgen Ind PSR4/5A-112 Power Supply

Lot of 18 Pall Filterite ARD 40-40US-M3 Filter

Gusher 11021-Short Pump

Allen-Bradley 1771-PA Power Supply

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Copeland CRD1-0200-TFD-9?70 Hermetic Type Compressor

Honeywell Sensotec 060-H063-01 Mod. PPG Pressure Sensor

Raycon 300808 Regulator Interface Board – NEW

Hoerbiger-Origa 50-2021-20X 27BM Rodless Cylinder

Heller Machine Tool 23-020061 Power Board

Enerpac B-3006 Air/Hydraulic Booster

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API-Harowe 11BRW-300-M-10B Brushless Resolver Sensor

Giddings and Lewis 502-02823-00 Memory Interface No. 2

Reliance Electric 2DB4020 VS Drive Dynamic Braking Kit

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Allen Bradley 512-AJB-3-6P-24?R 480V Enclosure 3R/4/12

Reliance Electric 0-51884 LSCA Module

Reliance Electric 0-52808 OLVA Overload Relay Module

Giddings&Lewis 502-02165-00 Rotation Direction Detector

Westinghouse HMCP030H1C Motor Circuit Protector Breaker

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GE Fanuc 44A399750-G02 PS106 Board

Heller Machine Tool 21-004940 Video Graphic Board

Heller Machine Tool 21-004940 Video Graphic Board A

AMCI 7561 SSI Interface Module – Allen-Bradley SLC500

GE Fanuc 44A394683-G01 Tradic Circuit Board

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Heller 23.020.026 20-Slot Rack Back Plane Module A

Heller 23.020.026 20-Slot Rack Back Plane Module

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Reliance Electric 45C15C Programmable Controller –

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GILMAN “V” JAW, L.H.+

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Allen Bradley 852S-NSB Solid State Timing Relay

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Balluff BRGBO-WAB-12-EP?-P-R-K-0.5 Shaft Encoder

GE Fanuc 44A398710-G01 BKPN7 Board

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Giddings and Lewis 502-02724-51 Console Interface Board

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Giddings and Lewis 572-02778-50 Universal CRT Interface

Giddings and Lewis 502-02724-01 Console Interface Board

Giddings and Lewis 502-02778-50 Universal CRT Interface

Sensotec 41/0572-01 2000 LBS Tension Load Cell

Allen Bradley 150 SMC 500-1000 Amp Control Module

Square D KAL36225 Circuit Breaker

Heller Machine Tool 23-020013 Cam Board

Westinghouse HMCP150T4C Motor Circuit Protector

Giddings&Lewis 502-02707-00 Output Interface Board

Motion Engineering LC/DSP 4-Axis Motion Control

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Jefferson Electric 213-0107-055 Transformer

Siemens 6FX1818-0BX02 EPROM Module – 810 Spare Board

Heller Machine Tool 23-020041 Connector Board

Fanuc A20B-1002-0740 Power Supply Board – New

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Allen-Bradley 6632-MBSA Modem SEALED

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Hub City 0220-66951-2104 Model 2104 Reducing Gear Box

Grove Gear Flexaline BMQ220-2 Worm Speed Reducer

Graco 178900 Sleeve

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Reliance Electric P18G4901EC 5HP 3475RPM AC Motor

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Allen Bradley 1771-SDN Series B Devicenet Module NIB

Control Techniques 9600-6400 Dominax DD400 5HP Drive

Giddings & Lewis 502-02722-50 Address Generator Board

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GE 5BC48JB830 1.2HP 2550 RPM DC Motor

General Electric 5KS213SAB205A 7.5HP 1770RPM -NIB-

PARKER PR3MM Pressure Reducing Valve

25 Saturn Precision Brass Rod Electrode .0121 X 12″

ASCO 8344B48 Double Valve

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Fanuc A20B-0008-0242 PC Board

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Cincinnati Milacron 3-531-3180A Jumper Board

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Reliance Electric 0-51839-8 IRJC Board

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1910-3132 Small Grinder Part 702 495 53

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Allen-Bradley 1771-PA Power Supply

25 Saturn Precision Brass Rod Electrode .01229 X 12″

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Miller Coax MK-15-NC-14-15-?C1-1/2 Solenoid Valve

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Circle Seal Controls SV462A32P6P39 Solenoid Valve

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Marposs 6321321500 Shared RAM Memory Board

專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊

PLC模塊,可編程控制器,CPU模塊,IO模塊,AI模塊,通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家


選擇深圳長欣,選擇放心,售后無憂大量現(xiàn)貨,當天順豐發(fā)貨!
主營:本特利,英維思,伍德沃德,福克斯波羅、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點經(jīng)驗。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個大概,以便學習編程時查找);
2、由位控邏輯入手,逐漸增加定時、計數(shù)等條件,把或、與、非關(guān)系理順;
3、進而練習整數(shù)運算、實數(shù)運算、類型轉(zhuǎn)換;
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解(最好是有個物理回路驗證,比如變頻器+電機+測速傳感器);
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制(盡量避免跳轉(zhuǎn),非跳不可時也是跳的越近越好);
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌,由于PLC的基本框架大同小異,學會一種至于其它的學習起來也就簡單了。