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3、系统应用

3.117反应釜液位控制

17反应釜是聚酯装置的终缩聚釜，液位的稳定关系到熔体粘度的稳定即产品的质量，所以本装置采用了两套放射性液位计，一台靠近入口端LIC17017，另一台靠近出口端LIC17023，17反应釜的液位取三七开，即通过AUX辅助计算块完成0.3*LIC17017.DACA.PV+0.7*LIC17023.DACA.PV的计算作为PID控制块的测量值。通过PID控制块的运算OP输出至SIC16009作为设定值，控制16熔体泵的泵速以调节17反应釜的进料达到液位稳定的目的。

3.2酯化搅拌器联锁控制

在装置中电机12A01带动一酯化搅拌器转动,电机12A01P带动油泵转动来给12A01润滑和冷却。一酯化搅拌器的启动条件是反应釜的液位LIC12019、LIC12009未低低报、油泵12A011已经运行、油压正常(PAL12036未低报),所以两个电机的启停顺序应该是先开油泵12A01P,再开搅拌器12A01,停止时先停12A01再停12A01P;另外，为保护搅拌器12A01，在一酯化液位计LC12019、12009液位低低报时、在12A01P故障停止时应联锁停止12A01。系统使用了一个DEVICE块简单、方便地实现了以上功能

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PENTAIR 40E30N 4IN END ENTRY MEMBRANE HOUSING FOR RO APPLICATIONS D576617

CIDRA SONARTRAC S-20276-02 STAINLESS STEAL COVER SEAL KIT D561334

5 MATRIX SEPARATIONS C30A20A KING E-SERIES FILTER CARTRIDGE D567989

NIBCO 914570PC PC641 PRESSYSTEM 4IN PRESS COPPER COMPANION FLANGE D587771

KEWAUNEE AE-2402-00 DRAWER & CUPBOARD CABINET UNIT ASSEMBLY D547578

YARWAY 41 VALVE PACKING-BACKSEAT REMOVAL TOOL D562598

TAIJIN TJD-0231 G04 OIL LEVEL INDICATOR 0-10 MIN MAX D567088

THOMSON 511H25D1 BALL PROFILE RAIL LINEAR GUIDE CARRIAGE D567134

5 MATRIX SEPARATIONS C30A20A KING E-SERIES FILTER CARTRIDGE D567987

BRADY 13550 BBP85 POWERMARK 6IN X 50FT YELLOW VINYL TAPE CARTRIDGE D572596

WRICO 42 1322233 BLANK INSERT D572750


DANA 47-7166-24-0805 3/8IN X 8IN X 52FT EXTRUDED SKIRTBOARD D568639

MSA GMD-C-N95 GAS MASK W/ CARTRIDGE D585269

TELEDYNE 1860-0125-01 CAL MECHANISM DRIVE ASSEMBLY D536989

BRADLEY S19-130A EMERGENCY VERTICAL DRENCH SHOWER D573418

RAYCHEM MCK-5-3V 5KV STUB-TYPE 3PH MOTOR CONNECTION KIT D583014

NIBCO 914570PC PC641 PRESSYSTEM 4IN PRESS COPPER COMPANION FLANGE D587777

ARMSTRONG B1673-6 PCA215/315 5/16 17-4 H900 PRESSURE CHANGE KIT D552060

YARWAY 44P 2IN PACKING-BACKSEAT REMOVAL TOOL D562593

YARWAY 40B VALVE PACKING-BACKSEAT REMOVAL TOOL D562597

YARWAY 44B 2IN PACKING-BACKSEAT REMOVAL TOOL D562601

DIXON 4NS6-B BRASS BOWES COUPLER 3/4IN BARB D559587

GEA TUCHENHAGEN VALVE ACTUATOR STEM ASSEMBLY D560381

GARLOCK STYLE 204 10 IN EXPANSION JOINT 16X11-3/4 IN D560105

MIDLAND 30-207 30207 1/2 POHB X 1/2 MIP ADAPTER D560721

VILTER KT 709A 25043A R5 1-2418-6 F 05/10 R-717 SHAFT SEAL KIT D561840

COMEM EM1DB TRANSFORMER AIR DEHUMIDIFIER D592363

A&M INDUSTRIAL 4680935 FLH 15S3-Y-AL-PNST-100 HOSE 100FT 1-1/2IN NH D593013

40.02.200 CABLE CHAIN CARRIER TRACK 9-1/4IN X 3-1/4IN X 7-1/2FT D595965

GRACO 220653 FOLLOWER PLATE FOR 35LB PAIL D597026

JOY 00527141 CAGE ASSEMBLY D549124

DIXON 463 DOULBE BOLT CLAMP W/ SADDLES 4-2/64IN TO 4-18/64IN D535310

COZZINI S01-M542 SET OF 60 KNIFE BLADES D577926

COZZINI SC-M543 SET OF 60 KNIFE BLADES D578096

MAZZEI 878-03-NPVDF NAT-KYNAR 1IN NPT GAS LIQUID INJECTOR D586963

RAYCHEM AMG-BY-III AUTOMATRIX TEE CONNECTION KIT D586666

YARWAY 21 VALVE RESEATING TOOL D562596