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　　在现代制药工业的生产过程中，不可避免地要使用大量的化学与生物制剂，这带来的一个结果是在生产的每个步骤都会排放出成分复杂的尾气，以挥发性有机化合物(VOC)居多。如何处理含VOC的尾气，成为企业面临的一大环保难题。国内目前主要采用热氧化法的处理方式，即蓄热式热力焚化炉(英文名为“Regenerative Thermal Oxidizer”，简称为“RTO”)
　　二、RTO工作原理
　　把有机废气加热到760摄氏度以上，使废气中的VOC在氧化分解成二氧化碳和水。废气首先通过蓄热体加热到接近热氧化温度，而后进入燃烧室进行热氧化，氧化后的气体温度升高，有机物基本上转化成二氧化碳和水。净化后的气体，经过另一蓄热体，温度下降，达到排放标准后排放。不同蓄热体之间通过切换阀，随时间进行转换，分别进行吸热和放热。氧化产生的高温气体流经特制的陶瓷蓄热体，使陶瓷体升温而“蓄热”，此“蓄热”用于预热后续进入的有机废气，从而节省废气升温的燃料消耗。陶瓷蓄热体应分成两个(含两个)以上的区或室，每个蓄热室依次经历蓄热-放热-清扫等程序，周而复始，连续工作。蓄热室“放热”后应立即通过反吹风机对该蓄热室进行清扫(以保证VOC去除率在95%以上)，只有待清扫完成后才能进入“蓄热”程序。RTO设备的工作流程见下图：
　三、控制要求和方法
　　3.1. 燃烧器控制
　　氧化室安装一个带比例调节的天然气燃烧器。燃烧器的供热量是用氧化室温度，经过PID调节器自动调节，当燃烧器运行时，燃烧器PID的SP外给定值(TE05_AM)等于SP外给定值+升温速率设定值/120。按照升温曲线进行升温。否则，SP外给定值等于氧化室温度。如果SP外给定值超过TE05_S10(氧化室温度--理想控制温度设定)，那么TE05_S10直接赋值给TE05_AM(SP外给定值)，进行温度限制。此外，燃烧系统还带有熄火保护、超温报警和超温自动停燃烧器等功能。
3.2.进气、出气、清扫流程的切换
　　该设备有三个蓄热室，一个公共氧化室，有机废气通过鼓风机送入蓄热室1，吸热后进入氧化室，蓄热室1因放热而降温，燃烧升温后的气体进入蓄热室2，通过热交换把热量蓄存在蓄热室2的陶瓷蓄热体中，处理后的气体经后续处理合格后烟囱排空。同时蓄热室3空间中残留未处理的VOC废气被反吹风机吹回氧化室焚化处理。经过一段时间(约2分钟(可设定))后，气流改变方向从蓄热室2进入氧化室，通过蓄热室2吸收热量升温后，在氧化室内高温焚化，最后经蓄热室3热交换后排放，同时蓄热室1处于清扫状态，经过一段时间(约2分钟(可设定))后，气流再次改变方向，不断的交替循环，保证氧化室温度在800℃以上，以此保证高的去除率和换热效率。程序如下图：

SIEMENS 6FX1118-8AC01 Sinumerik 3G _570 025 9030 00

Schneider Telemecanique AS-1 Communication Module ASILUFC5

GE/General Electric Communication Module IC600CB516/B

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Allen-Bradley 2711-T10C1 PanelView 1000 Series D

ABB 3HNM06855-1 Purge Sensor 3HNM 00272-1 .

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MITSUBISHI A2UCPU-S1 NSPP A2UCPUS1

IBM 8250-3788 NSPP 82503788

ALLEN BRADLEY 1791-IOBX NSFP 1791IOBX

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VeriFone Vx570 Dual Mode Terminal IP/Dial 6MB

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ALLEN BRADLEY 150-A135NBDD-8B4 NSFP 150A135NBDD8B4

ADEPT TECH 260-0420 USPP 2600420

GE FANUC IC697GDC701 USPP IC697GDC701

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SIEMENS 6ES7-317-2AJ10-0AB0 USPP 6ES73172AJ100AB0

ALLEN BRADLEY 6185-BAZAAZZ USPP 6185BAZAAZZ

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WE SHIP SAME CISCO SFP-10G-SR 10GBASE-SR SFP MODULE

SIEMENS 6SE3212-0DA40 6SE32120DA40 IN BOX

Siemens TP27-6 6AV3 627-1NK00-0AX0 Touchscreen Glass

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Schneider Modicon AS-BDAP-208 Sealed Discreet Relay ASBDAP208

Schneider Modicon AS-B827 ASB827 Fast Shipping

Schneider Modicon AS-B825-016 MODULE

Schneider Modicon AS-W801-002 ASW801002 Extender Cable

Schneider Modicon AS-C916-100 CPU Module Rev A2 removed from working system

SCHNEIDER TC2000 INDUSTRIAL OPERATOR INTERFACE 3515 KPM CRACKED PARTS/REPAIR

Siemens 6ES5465-4UA12 Analog Input Module 60 DAY WARRANTY

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SIEMENS Sinumerik 840C Interface 6FC5103-0AD13-0AA0 GWE 570080924900 Ver C

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ABB E6H-A-40 SACE E6 DISTRIBUTION POWER CIRCUIT BREAKER 4000A 6P LOW VOLT 79045

Adv Motorized Horizontal Test Stand w/ Digital Speed Controller 50 lbs Capacity

(H3-7) 1 ABB 58095141 PULSE AMPLIFIER BOARD. H3-7.

KIN TEK LABORATORIES SP261-L USPP SP261L

ADEPT TECH 30330-15000 USPP 3033015000

FOXBORO 220S-4F6 USPP 220S4F6

FANUC A06B-0313-B202 USPP A06B0313B202

SHARP GPB-2 USPP GPB2

RELIANCE ELECTRIC 0-49046 NSFP 049046

ROBOTRON 503-2-0322-04 USPP 5032032204

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Siemens 6ES5 491-0LB11 ADAPTION CASING

Siemens S5 6ES5 482-7LA11

Siemens 840D/840Di/810D HT6 Membrane Keypad

Siemens 6ES7 133-0BH10-0XB0 193-0CA30-0XA0 ET200B S5/S7

Square D 8005 TT-116

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WS-F6700-DFC3BXL Cisco Distributed Forwarding Card 3BXL Switching accelerator

Siemens 6ES7195-7HD10-0XA0 NIB

Siemens Servo Motor 1FT6 ERN 1387 2048 62S14-70K 0,00

Reliance 57406

Schneider Modicon Gould AS-B864-001 | Output Module NIB

Schneider Modicon AS-B354-000 USPP ASB354000

Schneider Modicon AS-S908-110 Remote I/O

Schneider Modicon AS-B885-100 MOTION MODULE ASB885100

Schneider Modicon AS-B807-132

MODICON AS-B872-200 ANALOG OUTPUT MODULE ASB872200

Siemens Input Module SMP-E211-A11 FOR PARTS SEE PICS 6929

Siemens 6ES5 441-4UA14 -FS- 6ES54414UA14

Siemens PLC Analog Output Module 6ES7 232-0HD22-0XA0 6ES72320HD220XA0 NIB

SIEMENS FS620I LASER SCANNER 3RG7834-6DD00

Triconex Tricon Communication Modules 4351A TCM

SIEMENS 6SN1118-0DG23-0AA0 _ 6SN11180DG230AA0 version C

SIEMENS Simodrive 611 6SN1111-0AB00-0AA0

SIEMENS 6FC5500-0AA11-1AA0 Free Ship

Advantech PCL-731 48 bit digital I/O card

Allen-Bradley 1769-OB8 High Power Output Module

ABB Axis 4-5 motor for Irb 6400(F); Part# 3HAB5761-1

ADEPT ROBOT MOTION BLOX-60R 05865-000

6SL3120-1TE26-0AA3 sinamics s120 single motor module

HONEYWELL 51305907-175 NSFP 51305907175

SYMAX 8881-MLI-224 USPP 8881MLI224

CUTLER HAMMER W200M5CFC USPP W200M5CFC

CONTROL TECHNIQUES BLE-455W-4 NSPP BLE455W4

OMRON CV2000-CPU01-E NSFP CV2000CPU01E

MODICON 140-AII-330-10 USPP 140AII33010

GENERAL ELECTRIC 755X045015 NSPP 755X045015

Siemens 6ES5 300-3AB11 -FS- 6ES53003AB11

Siemens 6ES5-511-5AA12 USPP 6ES55115AA12

SIEMENS 6ES5312-5CA21 6ES5 312-5CA21S5 IM312-5 EU Interface Module

Siemens / Van Dorn Power Supply 6ES5 944-7UA22 27391

Siemens 6ES5 931-8MD11 POWER SUPPLY

Siemens 6GK1105-3AA10 6GK1 105-3AA10

Siemens TP177A 6AV6 642-0AA11-0AX1 Protective Film

Siemens 6ES5482-7LA11

KEYENCE INTERFACE MODULE KV-L2

Yaskawa Memocon GL120 DDSCR-120CPU34100 Ver. FOB14 CPU20 120 CPU 341 00

Siemens 6ES7 215-2AD00-0XB0 6ES72152AD000XB0 DP

Siemens OP27 6AV3627-1JK00-0AX0 Operator Display Panel

Pulsatrol MTC 310BCF

Schneider Modicon AS-B832-016/ASB832016 Beautiful condition

Schneider Modicon AS-5B34P-02A NSFP AS5B34P02A

Schneider Modicon AS-M907-100 PLC M907100 AM-M907-100

Schneider Modicon AS-B130 PLC

Schneider Modicon Analog Input Card Part AS-B873-001

Schneider Modicon TM-1623 AS-B833-016 24V INPUT TRUE LOW

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

Telemecanique LA-DT4C Time Delay Module

Siemens Simatic S7 322-1BL00-0AA0 32pt Output Module

SIEMENS 2112A-4 NSPP 2112A4

SIEMENS Sinumerik 8MC 8 MC 548 021.9012.01 _ 8MC548021.9012.01 _ 8MC548021901201

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SIEMENS SIMODRIVE 6SN1130-1DB42-0CA0 VSA-MODUL

SIEMENS OP015 6FC5203-0AF03-0AA0 Membrane Keypad 6FC5 203-0AF03-0AA0

Advantech PCL-724 REV.A1 24 Bit DIO Card

ALLEN-BRADLEY 2711P-B10C4D2 PANELVIEW PLUS 1000 OIP

ABB 57088443 MEM 86-192K + 192K RAM Memory DCG 3200-MR2 AB Stromberg 200342

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ASEA BROWN BOVERI EL3020 USPP EL3020

ASCO NPL8316A54V USPP NPL8316A54V

MITSUBISHI AD51S3 USPP AD51S3

INDRAMAT DKS01.1-W030B-DL-01-01-FW USPP DKS011W030BDL011

ALLEN BRADLEY 5130-KA USPP 5130KA

SQUARE D 8804-PT10GA4H10 USPP 8804PT10GA4H10

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SIEMENS 6ES5 464-8MD11 6ES54648MD11

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VARIAN E1147480 ANALOG/DIGITAL I/O INTERFACE MODULE