XVME-682
日期：2018-8-4一、KY系列一体化安装型工业温控器的温度测量及控制原理
1、温度测量、显示原理
温度信号为非电量值，工业控制应用中多是利用温度传感器采集测量物质的温度。通过温度传感器将测量的温度信号转换为电信号，再通过放大、滤波后送A/D转换器，实现模拟信号到相应数字信号的转换，然后利用数字信号处理方法计算得出温度值，实现温度的测量，KY系列一体化安装型工业温控器也是采用这一方法，测量过程如图1所示。
图1中被放大的测量信号仍为模拟电信号，不能被单片机识别，要实现测量温度值的显示和单片机控制处理，还需要进行模数转换操作，温度信号显示过程如图2所示。
2、温度控制原理
被放大的温度测量信号经A/D模数转换后，成为单片机可识别的数字信号，并将其送入主控单元，与主控单元已设置好的给定值比较，经过PID运算得到输出控制值。此输出控制值用来控制KY系列一体化安装型工业温控器的可控硅模块单元导通角大小，进而控制执行元件加热功率，最终达到控制被测系统温度值的功能。温度控制过程如图3所示。
二、井式炉特性
井式炉是周期式作业炉，适用于杆类、长轴类零件的热处理。
井式炉外壳为钢板和型钢制成圆柱形炉体，全数采用密封焊接。加热元件绕成螺旋状装置在炉膛的搁丝砖上。以电为热源的井式炉为井式电阻炉。
井式电阻炉整个炉膛是一个密闭的空间，具有辐射传热的特性，对没有强制对流的井式炉还应当在炉子的上部与下部适当增加一些功率。由于井式炉结构和电热体布置等原因，炉内的实际温度分布是不均匀的。
三、KY系列一体化安装型工业温控器在井式电阻炉中的应用
由井式炉炉体特性可知，炉膛内的各区的升温特性不同，而热处理工艺所需要的却是在一个工作空间内的温度分布均匀，并能长时间保持稳定。下面介绍如何应用辉达工控KY系列一体化安装型工业温控器进行井式炉控制，以保证井式炉炉温的均匀性。
热电偶KY系列一体化安装型工业温控器可实现对炉内局部温度的控制和测量，在这样的条件下，为了确保炉内工作空间炉温的均匀性，采用多区温度控制。
热电偶测温过程中只有被测介质、零件和热电偶之间的热交换过程达到完全的动态平衡，热电偶检测到的温度才能代表零件温度。但由于它们之间传热的复杂性和测温存在滞后等因素，要想达到完全动态平衡是不可能的，为使热电偶测量温度与零件实际温度相近，采用多点温度采集。
不同炉子的温度均匀性不同，进行多区工艺曲线控制前，需要先测试炉子的温度均匀特性。具体做法是，首先根据炉体大小和井式炉加热空间分布特性，选用3个测温精度相同的热电偶分别测量井式炉上、中、下三个加热工作区的温度采集，分别作为1、2、3加热区的采集温度。
再将3个热电偶对应接入三台KY系列一体化安装型工业温控器分别控制1、2、3区加热元件工作，根据3个加热区采集到的温度值与设定温度差值，进行PID运算，在炉子升温过程中，根据各个温区的加热情况，不断调整三区PID控制参数和输出大小，以使三个温区的温度基本一致，即保证整个炉膛内工作区的温度均匀。在调节炉膛温度均匀性的过程中，记录数据，得到炉子的加热特性。温度均匀性测试后，根据测试得出的数据，分别设置三个KY系列一体化安装型工业温控器的工艺曲线参数，进而实现对多个温区的控制。
结束语
KY系列一体化安装型工业温控器在实际井式炉控制上得到很好的应用，项目应用中的井式炉温度均匀性得到了很好的提升和保证。
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【主营产品】
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Elmac Technologies EL100EX/Q End Line Deflag Flame Arrester Element
Triconex 2852-1 A O External Termination Panel Assy 7400111-100
Allen Bradley 1771P7/D 120/220V AC Power Supply - NEW + Paperwork
Entronic ZE544-001A-541 Dual Thermocouple Input Card *NEW* free shipping
Broadley James ST851-T330-A33TE Dynaprobe II ORP Sensor *NEW* free shipping
Broadley James ST851-T33D-E10T4 Dynaprobe II ORP Sensor *NEW* free shipping
Semaphore Kingfisher BA-12 Backplane BA12 Back Plate 12-Slot
Transmation Checkmate 600 Pressure Calibrator, ±10" H20, 0.25% Accuracy
Baker Hughes Centrilift 90268 Door Interface Board
Enerpac ES-60 Mod:IV 60T Load Skate Turntable
MEDC SM87 BG-LI Fire Alarm Manual Call Point Explosion Proof Switch
Toptronic T218HVD High Voltage Detector Touch Tester ** 44kV to 132kV **
Cisco AiroNet AIR-CAP1552E-N-K9 Outdoor Mesh Access Point 802.11N 2/5GHz Tx/Rx
Jaylec 65-3299 24V 55A Alternator for Isuzu FRR FSR FTR
Rohde & Schwarz 392.4017.04 NAP Power Reflection Meter
Motorola GP329 VHF Portable Handheld Radio 136-174MHz ** BRAND NEW **
Hawk Gladiator GMSB101XX Microwave Blocked Chute Sender *Express Shipping* *NEW*
Beamex PG300V 300psi Portable Hand Pneumatic Calibration Pressure Pump
Allen Bradley SLC500 Rack with 1746-P2/C, 1746-IB32/D, 2 x 1746-OB36/D
Siemens 6EP1437-1SL01 SITOP Power-30 415V to 24VDC 30A Power Supply
Siemens 03VL2716-2AA36-0AA 125A Circuit Breaker with 3VL92057DC30
Koppern Pepperl Fuchs NJ4-30GM-N-200 Proximity Switch Sensor
Delco Remy 8600282 24V 50A Alternator
Jaylec 65-0070 24V 50A Alternator Agricultural 13SI, Reg P,L,F,S 8PV Delco
Western Instruments WC-6 Compact AC Magnetic Yoke 280mm
Beka Associates BAC328C 4-1/2 Digit Indicator EEx
Allen Bradley Compact 1769-SDN/B DeviceNet Scanner Module - NEW
Bosch 0124655023 12V 100A Automotive Alternator
ABB WM DOL MO325-A12 (65kA) 6E/4 MNS iS System 3.6A MNMiS Module
Tait T0300013AAAA 6-Bank Battery Charger for TP8100 TP9300 TP9400 radios
Ushio EmArc 5001477 850W Photo Optic Lamp - HID/SMH/850W/SMH850D2
Mechanism M1947 Aircraft Fatigue & G-Force Meter mechanical avionics Totaliser
Hubbell 55-4E-2SP-WL-111 Series 55 Rotary Limit Switch
SIBA 3027156.250 250A 7.2kV 50kA HV Backup Bolt-In Fuse
SIBA 3027156.100 100A 7.2kV 50kA HV Backup Bolt-In Fuse
Allen Bradley 160-BA04NSF1 2hp Motor Speed Controller VSD Starter 3ph
Allen Bradley 160-BA06NSF1 3hp Motor Speed Controller VSD Starter 3ph
National Instruments cFP-AI-111
Fuji FTT1604-G02 T-Link Input Module
Fuji FTT16R0-G02 T-Link Output Module
Siemens 3VL2716-2AA36-0AA0 125A Circuit Breaker with 3VL92057DC30,
Leeson C4D17NK14C 1/2hp DC Electric Motor TENV 74V 5.9A 18 inlbs
Schneider Modicon TSX Quantum 140-ACI-030-00 8ch Analog Input Module
Schneider Modicon 140 NOM 211 00 TSX Quantum Modbus Plus MB+ Head 1Ch Network
Anderson Greenwood M25BVIS-2-WP Static Pressure Manifold
Allen Bradley 1756-IB16D Diagnostic Module, Series-A, V2.3
Delco 8200308 39MT 12V Starter Motor suit Kenworth Mack E7 Volvo Freightliner
Allen Bradley 1771-ASB/C FW:D Remote Input Output Adapter Module
Hernis Scan Systems RX206 HS057B Control Board PCB CCTV
ABB 3BSE008508R1 2x8pt Digital Input Relay S800 I/O DI810 *FACTORY SEALED*
ABB 3BSE008514R1 8 Channel Digital Output Relay S800 I/O DO820 *FACTORY SEALED*
Emerson R48-3200 3200W 48V Rectifier
Allen Bradley 1771IFE/A Analog Input Module Series-A, Ver-L
HP 8491A RF Attenuator Set 12.4GHz 3dB - 6dB - 10dB
Allen Bradley 1756-IF8/A Controllogix Analog Input - NEW
Allen Bradley 1771-IQ16/B Isolated DC Input Module - NEW
Cembre Cabac HT51 Manual Portable Hydraulic Cable Cutter
Wilcoxon S100cs Accelerometer - SET of SIX, 94-102 mV/g
AEG Schneider Modicon AS-B883-01 High Speed Counter
Caldaro S50JAK-ZU-23R3GP-6541B Palm Joystick 2-Axis with Toggle
Nokia TC21710.01.01A TMS Adapter adaptor
Allen Bradley 1756-A7/B 7-Slot ControlLogix Rack
Allen Bradley 1746-OB32/D 32Pt Output Module for SLC500
Sprecher CEP7-C2-23-25 5/25A Solid State Overload Relay DeviceNet *NEW+SEALED*
Yokogawa AIP571 S2 Electrical Transceiver RIO I/O
Yokogawa AIP578 S1 Rio Optical Link Transceiver
Kyoritsu 6201A Portable Appliance Tester CAT-III
Siemens 3VL2716-2AA36-0AA0 160A Adjustable 100-125A Circuit Breaker 3VL92127DC30
Elcon HiD 2000 Series Termination Board 2116 Hake for Safety Barriers
Omnitronics 960CC Standard Radio Communications Console Panel
Fluke 1507 Portable Insulation tester megger meter 50/100/250/500/1000
Robinair 15801S2 212L/min 1hp Vacuum Pump for Refrigeration
GE Fanuc IC610MDL116B Series One Analog Input Module
Tait TM8254 UHF Mobile Radio - Remote Mic - Full Kit *NEW* CB 80ch TM8200
Sprecher+Schuh CA1-150 Contactor 130hp Electric Contactor *NEW*
Rosemount 0065C31J0175N Resistance Thermometer Temperature Transmitter
Topworx DXPJ204MMB Valvetop Valve Positioner + ATEX Certification Paperwork
Siemens 6ES7-331-1KF02-0AB0 Analog Input Module
Fisher Emerson 67CFSR-601/SB 125psi Regulator with internal Relief and Filter
NAL Tracplus Iridium GPS Personnel Tracker Emergency Beacon & Communicator
Siemens M74003A162 Teleperm C Board
MTL MTL4046P Isolating IS Interface 4/20MA DRIVER, SMART, LFD HIGH POWER
Custom Servo Motors MPM891FRME-738 3PH 230VAC Motor 0.41kW 6.64Nm 2400rpm
EmersonNetwork Inverter Miniflex HDI-48/230/1 800W 40-60VDC 230VAC V510483000
Siemens 3VL3725-1AA46-0AA0 200-250A 40kA Circuit Breaker 3VL93257EJ40 Trip Block
HP Agilent 11500F Cable Assembly M/3.5mm to M/3.5mm DC to 26.5 GHz
Hastings 6701 HLS-5 46kV Hot Line Detector
Schneider Modicon P810 Power Supply
Cooper MEDC DB4 25W 100V Weatherproof Loud Speaker II 2 GD EExd IIC
Anritsu Wiltron Site Master S113 Cable Antenna Analyzer - 3 x UNITS - PARTS
Allen Bradley 1771-IR/B FW:B RTD Input Module PLC-5
Allen Bradley 1771-OFE1/B Fware:A 12-Bit Output Module
3M AquaPure AP903 Whole of House Water Filter + Birko 1311046
Proxitron Air Flow Monitor Sensor with FKM230.194 Probe - Fume Hood Monitor
Emerson Network Static Switch Miniflex HDS-50-230 50-Arms BMP 604030/1
Schneider Modicon 140CRP93100 RIO HEAD PLC
MTL BPM16U Universal Backplane 4000 Series Measurement Technology
Baker Hughes Centrilift 47211 Auxillary Converter Board
Siemens Landis Gyr LFL1.635 Gas Burner Control 240V 67.5s 4A conroller LFL1635
Siemens Simatic S7 6ES7-331-7KF02-0AB0 8x12Bit Analog Input
Siemens Simatic S7 Siemens 6ES7-321-1BL00-0AA0 32 Channel 24VDC
TRIO Datacom ER450-51A02-EH0 UHF Diagnostic Encryption Radio Data Modem
TRIO Datacom Schneider ER450-51A02-DH0 UHF Diagnostic Radio Data Modem
TRIO Datacom Schneider ER450-51A02-YH0 UHF Remote Radio Data Modem Full Duplex
Emerson R48-2900U 2900W 48V Rectifier Power Supply (200/250VAC)
Emerson 0185 Temperature Sensor Thermocouple 485mm Stainless Steel
ABB SACE S3N 100A 4-Pole Circuit Breaker CB thermal
Gefran TPS-4-V-B16D-T Pressure Transducer Transmitter **NEW** free shipping
Furuno DP-6 Narrow Band Direct Printing Telegraph Equipment DP6 - part of FS5000
Yokogawa AIP171 S1 Transceiver Control Module for Centum CS & VP
Yokogawa PW501 S1 Power Module for Centum CS3000
Mitutoyo 104-154 20"to 24" Outside Diameter Micrometer 0.001" **NEW**
Bramco ELF-2 A00842 Earth Leakage Relay 5A Failsafe Adj Trip
National Instruments cFP-CTR-500
Samoa 340120.900 Master-4 3:1 Pneumatic drum pump 25L/min
RuggedCom RuggedSwitch RS900-24-D-C2-C2-C2 Industrial Ethernet
RuggedCom RuggedSwitch RS900 9-Port Industrial Switch *30 Day Warranty FREE POST
Westlock 2649 Accutrack Ex Valve Position Monitor hazardous *NEW*
Wolf H251A Hazardous Area ATEX Safety Torch Light Lamp H-251A
Cooper CEAG CHG4118201R1469 Push Button Control Station Ex-e Intrinsically Safe
MEDC DB10 15W 100V Weatherproof Loud Speaker horn Intrinsically Safe Explosion
Honeywell V4055B-10963 Gas Valve
HP 8900C Analog Peak Power Meter
Siemens 3VL2716-1AA46-0AA0 50A Circuit Breaker with 3VL92057EJ40
Allen Bradley 1771-P7/B Power Supply 120/240VAC 5VDC/16A PLC-5
Starkeys DS220/2 100W Ultraviolet UV Insect Killer Bug Zapper - 180m2 indoor
Blackbox LBH100A-HD-ST-24 Hardened Media Converter Switch Fiber Copper
Enerpac ES-30 Mod:III 30T Load Skate Turntable
Schneider Trio Datacom ER450 UHF Remote Data Radio Modem Duplex Hazard 450-465
TFT Automatic 200-1300 lpm Adjustable Fire Nozzle with Flush-Fog-Stream
Thrane & Thrane Sailor 6210 VHF Marine Radio Commercial Waterproof *Warranty*
Omnitronics 950CI Radio Channel Interface
HP 3488A Switch Control Unit with x2 44477A and 3 x 44471A Relays
Bently Nevada 3300/10-01-02-00 Power Supply
Bently Nevada 3300/46-XX-02-01-00 Differential Expansion Module
Turck SE-84X-E524 5-Port Industrial Ethernet Switch IP67 Outdoor
Enerpac ER-30 30T Load Skate
Katko NHP ISO-3200MG 200A 75kW Isolation Switch
Siemens 3UF7113-1AA00-0 Simocode Pro Motor Protection Module Extension
Elmetron CX-401 Multifunction Portable Laboratory Meter
Siemens 3UF7210-1AA00-0 Simocode Pro Graphical Operator Panel Displa
Siemens 3RT1054-6AP36 115A Contactor 100hp
Siemens 3RV10314HA10 40A to 50A Circuit Breaker
Flowline LU27-1 Echosonic II 24VDC Ultrasonic Level Switch 10cm to 300cm
Motorola Impres WPLN4197A 6 Bank Gang Charger suit GP339 GP338 GP328
Skywave DMR-200C Inmarsat D+ Transceiver
Allen Bradley 1771-DLC 12-24V Gray Encoder Input Module - 70VA Output
Allen Bradley 1771-OMD 220/240VAC AC Output Module
ABB 3BSE008552R1 2x8Ch Digital Input Relay DI811 *NEW*
Cembre Cabac HT51 Manual Portable Hydraulic Cable Cutter
Schneider Modicon TSXPSY1610M Power Supply
Innotech GENII-DO-REM Digital Output Remote Expansion Module
Innotech GENII-DI-REM Digital Input Remote Expansion Module
Innotech GENII-AI-REM Analog Inpute Remote Expansion Module
Allen Bradley 1756-OB16D/A Controllogix DC Diagnostic Output - NEW
Cillit CilliChemie Eurodiago 12802AA 1.25" Semi Automatic Self Cleaning Filter
Advantech ARK3381 Industrial Computer ARK-3380 ARK-3381 with Printer Ports
Bently Nevada 330101-00-40-10-02-00 8mm Vibration Proximity Probe
Safety Lockout Set - 13 Padlocks + 500 Labels