CN201749349U - Control system for industrial fuel annealing furnace - Google Patents

Control system for industrial fuel annealing furnace Download PDF

Info

Publication number
CN201749349U
CN201749349U CN2010202410239U CN201020241023U CN201749349U CN 201749349 U CN201749349 U CN 201749349U CN 2010202410239 U CN2010202410239 U CN 2010202410239U CN 201020241023 U CN201020241023 U CN 201020241023U CN 201749349 U CN201749349 U CN 201749349U
Authority
CN
China
Prior art keywords
control box
furnace
electromagnetic valve
temperature
plc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010202410239U
Other languages
Chinese (zh)
Inventor
李艳梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Qiancheng Technology Development Co., Ltd.
Original Assignee
HARBIN JINXIN ELECTRIC CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HARBIN JINXIN ELECTRIC CO Ltd filed Critical HARBIN JINXIN ELECTRIC CO Ltd
Priority to CN2010202410239U priority Critical patent/CN201749349U/en
Application granted granted Critical
Publication of CN201749349U publication Critical patent/CN201749349U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Landscapes

  • Regulation And Control Of Combustion (AREA)

Abstract

The utility model provides a control system for an industrial fuel annealing furnace, which consists of a programmable logic controller (PLC) unit, an input/output (I/O) module, a switching value signal, a detection instrument, a monitoring operation unit, a burner nozzle control box, a trolley control box, a furnace door control box, a fan control box, a wedge disc motor, a field gentle wind electromagnetic valve and a field strong wind electromagnetic valve. The PLC unit is respectively connected with the I/O module, the switching value signal, the detection instrument, the monitoring operation unit, the burner nozzle control box, the trolley control box, the furnace door control box, the fan control box and the wedge disc motor. The burner nozzle control box is connected with the field gentle wind electromagnetic valve. The field gentle wind electromagnetic valve is connected with the field strong wind electromagnetic valve. The field strong wind electromagnetic valve is connected with the PLC unit. Under the condition without increasing high cost, the control system for the industrial fuel annealing furnace realizes uniformity of the furnace temperature by power selection of a burner nozzle, reasonable layout of the burner nozzle, sealing measure of the furnace, reasonable temperature control subarea, reasonable layout of thermometric elements and process and automation of pressure and temperature control.

Description

A kind of industrial fuel annealing furnace control system
Technical field
The utility model relates to industrial automatic control technology, is exactly a kind of industrial fuel annealing furnace control system specifically.
Background technology
Raising along with China's industrial furnace design, production, manufacturing technology level, a large amount of industrial furnaces export to third world countries, for China wins a large amount of foreign exchanges, just at present China's industrial furnace is compared with external the most modernized industrial stove, also have a certain distance, comprise the realization etc. of operation, particularly temperature uniformity of quality, Installation and Debugging, the control system of components and parts.The manufacturing enterprise of some military enterprises and special material is high especially to the uniformity requirement of industrial annealing furnace, and what have requires homogeneity less than 5 ℃, even requires less than 3 ℃.
Summary of the invention
The purpose of this utility model is to provide a kind of is not increasing the industrial fuel annealing furnace control system that realizes temperature uniformity under the expensive condition.
The purpose of this utility model is achieved in that it is by the PLC unit, the I/O module, the switching value signal, measuring instrument, the policer operation unit, the burner control box, the chassis control box, the fire door control box, the blower fan control box, the flashboard motor, on-the-spot little phoenix solenoid valve and on-the-spot strong wind solenoid valve are formed, the PLC unit connects the I/O module respectively, the switching value signal, measuring instrument, the policer operation unit, the burner control box, the chassis control box, the fire door control box, blower fan control box and flashboard motor, the burner control box connects on-the-spot little wind-powered electricity generation magnet valve, on-the-spot little wind-powered electricity generation magnet valve connects on-the-spot strong wind solenoid valve, and on-the-spot strong wind solenoid valve connects the PLC unit.
A kind of industrial fuel annealing furnace of the utility model control system, by the power selection of burner, the rational deployment of burner, the seal approach of stove, rational temperature control subregion, the rational deployment of temperature element, the technology and the robotization of pressure and temperature control, realize temperature uniformity.
Description of drawings
Fig. 1 is a block diagram of the present utility model.
Embodiment
The utility model is described in further detail for example below in conjunction with accompanying drawing.
Embodiment 1: in conjunction with Fig. 1, a kind of industrial fuel annealing furnace of the utility model control system, it is by PLC unit (1), I/O module (2), switching value signal (3), measuring instrument (5), policer operation unit (4), burner control box (6), chassis control box (7), fire door control box (8), blower fan control box (9), flashboard motor (10), on-the-spot little phoenix solenoid valve (11) and on-the-spot strong wind solenoid valve (12) are formed, PLC unit (1) connects I/O module (2) respectively, switching value signal (3), measuring instrument (5), policer operation unit (4), burner control box (6), chassis control box (7), fire door control box (8), blower fan control box (9) and flashboard motor (10), burner control box (6) connects on-the-spot little wind-powered electricity generation magnet valve (11), on-the-spot little wind-powered electricity generation magnet valve (11) connects on-the-spot strong wind solenoid valve (12), and on-the-spot strong wind solenoid valve (12) connects PLC unit (1).
Embodiment 2: a kind of industrial fuel annealing furnace of the utility model control system, comprise automatic temperature control system, furnace pressure automatic control system, burner Iganition control system, stove mechanical chain and kinematic train and blower fan start and stop, blast control system, function is as follows:
(1) automatic temperature control system
The pulse-combustion mode that the heat-supplying mode of car type furnace adopts big and small fire to replace is controlled.PLC and the control of intelligence instrument two-way full-automatic zoning.For realizing accurate Control for Kiln Temperature, under the situation of pulse-combustion, the division in heat supply district is fixed according to the quantity of the situation that is provided with of furnace wall thermopair and burner, and 14 burners promptly are installed, 14 thermopairs, and the control subregion is 14 districts.Automatic temperature control system has measured temperature, high value, low value, normal value and mean value selection function, for each burning control zone, PLC handles the temperature signal that collects, and according to the technology heating curves, calculated load is carried out the control of working quantity and switching time to the burner of local area.Each distinguishes temperature overtemperature alarm function: when the temperature of corresponding stove section surpasses permissible value, system sends alerting signal; And on the industrial computer interface display alarm position.Measure the disconnected even warning function of thermopair: when any thermopair is burnt out, system sends alerting signal, and on the industrial computer interface display alarm position.Each distinguishes temperature difference overload alarm function before and after the temperature: promptly for the measured temperature difference of each thermopair of same district greater than permissible value, then send alerting signal, to remind operating personnel's detection failure point.The setting means of heat supply district furnace temperature can be worked under manual, automatic dual mode.At the low thermophase of baker, adopt manual mode: on industrial computer, manually change the setting value (SP) of each section temperature, each section furnace temperature is set.Under the normal condition, adopt automatic control mode: on the industrial computer interface, be provided with and respectively distinguish the temperature process curve by the technologist.For the workpiece of different size and material, set corresponding process curve, and the form of this diagram database is preserved, and go up pattern demonstration process curve at " the parameter setting picture " of industrial computer.After the affirmation, PLC can control each district's temperature by this process curve.Furnace temperature is in host computer interface display, storage and printing.
(2) furnace pressure automatic control system
Furnace pressure control effect directly has influence on the homogeneity of fire box temperature, also influences energy-conservation effect.Furnace pressure is controlled at slight positive pressure state, prevents that air from sucking in the stove.The pressure pipe is installed on a little more than the furnace wall on chassis surface, and with link to each other by differential pressure transmitter, real-time monitoring hearth pressure, signal are given the analog module processing.The aperture of the module amount output module output signal of PLC control flue shutter guarantees the burner hearth pressure-fired, and makes and keep a suitable negative pressure in the flue.Promptly guarantee the waste gas nature, unimpededly discharge that it is excessive to be unlikely to the heat loss again, keeps the higher ground thermal efficiency.
(3) burner Iganition control system
A burner control box is installed near each burner, in join burner lighter and ignition transformer.The control mode of burner is divided into preceding manual ignition of mouth and remote auto igniting.The flame monitoring of burner, flame-out report to the police and fault after function such as restart, finish by the burner reference mark firearm of German import.The fired state of burner shows on the picture of host computer.
(4) stove mechanical chain and kinematic train
Control system guarantees trolley running and locatees automatically that the switching of fire door reaches location automatically.Chassis and fire door be interconnected lock mutually.Chassis enters the position, and fire door just can be closed; Door opened putting in place, chassis just can go out.Chassis and side seal be interconnected lock mutually.Fire door enters the position, and side seal just can compress; The side seal pine puts in place, and chassis just can go out.The drive unit of chassis and fire door is provided with the execute-in-place case.
(5) blower fan start and stop and blast control system
The start and stop of combustion fan are the on-site manual control mode.
The stable combustion position of burner that can make of hot blast blast is stable, and it is more abundant to burn, all favourable to temperature uniformity and energy-conservation aspect, therefore the air quantity and the blast of combustion air is controlled automatically.In blower fan inflow point the motor regulated valve of controlling air inlet is installed, PLC is according to the signal of pressure obtaning device on the air pipe line and pressure unit feedback, and the aperture of regulating the electrically operated valve of air inlet is automatically regulated air quantity, steady wind pressure.The place is provided with pressure switch at fan outlet, when blast is lower than specified limit value, and fast shut-off combustion gas automatically.
A kind of industrial fuel annealing furnace of the utility model control system has complete fault detect, warning and safety protection function,, light warning device sound cashier's office in a shop at control instrument, and control dynamic display alarm position, main interface at industrial computer.Mainly comprise: combustion gas: undervoltage warning; Blast: undervoltage warning; Furnace pressure: superpressure, undervoltage warning; Furnace temperature: overtemperature alarm; Air preheating temperature: overtemperature alarm; Smoke evacuation flue-gas temperature: overtemperature alarm.
Industrial control computer (HMI):
Host computer adopts " grinding China " industrial computer series (IPC610-PIV Industrial Control Computer, internal memory 1G, hard disk 150G, 21 " TVGA Philip high-resolution color liquid crystal colour display screen device; adopt Windows operating system, configuration EPSON ink-jet printer and UPS uninterrupted power source are formed).Computing machine is by the communication of industrial bus realization with PLC.Complete Chinese graphical user picture and operation screen are monitored the duty of each stove burner, state of the art parameters such as furnace temperature, furnace pressure in real time; Start and stop by technological requirement control motor; Historical trend record and parameter surpass the sound and light alarm of setting value.The report printing of class's newspaper, daily paper; Single stove energy consumption accumulative total, presetting of process curve possesses selection function.Storage prints such as real time data, technological parameter, warning message.And to the operation setting password protection of change parameter.Stove carries out perfect accurate control by the CPU user program of PLC, handles by predetermined process curve to guarantee workpiece, guarantees that the production run strictness satisfies technological requirement.Communication network adopts industrial bus and PLC communication.Attainable function: produce actual uploading; Each district's technological parameter is provided with, revises; But store data long term is monitored, prints, filed to each district's thermal parameter in real time, be convenient to inquiry; The stove failure message is monitored, collects, printed and confirms; Historical data to stove is inquired about; The alarm failure reason had dynamic demonstration and query function; Maintenance to critical component has online prompt facility; Can realize manual, automatic switchover, production run is controlled in real time.On PLC, store user program.PLC gathers simulating signals such as furnace temperature, furnace pressure, gas flow, the signals such as duty of gaseous-pressure switching signal, air pressure switch signal, nitrogen pressure switching signal, burner in real time.Stove is improved and accurate control by PLC, handle by predetermined process curve, guarantee that the production run strictness satisfies technological requirement to guarantee workpiece.
Embodiment 3, a kind of industrial fuel annealing furnace of the utility model control system, and electric control system is composed as follows: be equipped with one and overlap independently PLC control system, the input/output signal of on-the-spot switching value, analog quantity all is connected to the module of stove pulpit PLC.Every cover PLC configuration ethernet communication module.The PLC control system is installed in the stove pulpit.The analog quantity that is connected to the I/O module has: fuel pressure (pressure unit behind the reduction valve), combustion air pressure (pressure unit), stove Nei Ge district temperature (some thermometrics in every district), furnace pressure (differential pressure transmitter), flue-gas temperature (2 thermometrics before and after the heat interchanger), hot blast temperature (exchanger heat air pipe line).The switching value signal has: burner igniting and working state signal, fire door and chassis travel switch signal, valve station gaseous-pressure switching signal, combustion air pressure switch signal, compressed air pressure switching signal.Be equipped with monitoring host computer and operator's console, be equipped with all kinds of necessary detecting instrument instrument, gaseous-pressure transmitter and pressure obtaning device, combustion gas orifice plate and differential pressure transmitter, combustion air pressure unit and pressure obtaning device, furnace pressure differential pressure transmitter and pressure obtaning device, stove Nei Ge district temperature, flue-gas temperature, hot blast temperature detect thermopair, the travel switch that puts in place of fire door, chassis and side seal is equipped with two 24 strip chart recorder table record fire box temperatures and monitoring workpiece temperature.The utility model electric control system also comprises: burner control box, chassis control box, fire door control box, blower fan control box and flashboard motor.

Claims (1)

1. industrial fuel annealing furnace control system, it is by PLC unit (1), I/O module (2), switching value signal (3), measuring instrument (5), policer operation unit (4), burner control box (6), chassis control box (7), fire door control box (8), blower fan control box (9), flashboard motor (10), on-the-spot little phoenix solenoid valve (11) and on-the-spot strong wind solenoid valve (12) are formed, it is characterized in that: PLC unit (1) connects I/O module (2) respectively, switching value signal (3), measuring instrument (5), policer operation unit (4), burner control box (6), chassis control box (7), fire door control box (8), blower fan control box (9) and flashboard motor (10), burner control box (6) connects on-the-spot little wind-powered electricity generation magnet valve (11), on-the-spot little wind-powered electricity generation magnet valve (11) connects on-the-spot strong wind solenoid valve (12), and on-the-spot strong wind solenoid valve (12) connects PLC unit (1).
CN2010202410239U 2010-06-29 2010-06-29 Control system for industrial fuel annealing furnace Expired - Fee Related CN201749349U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202410239U CN201749349U (en) 2010-06-29 2010-06-29 Control system for industrial fuel annealing furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202410239U CN201749349U (en) 2010-06-29 2010-06-29 Control system for industrial fuel annealing furnace

Publications (1)

Publication Number Publication Date
CN201749349U true CN201749349U (en) 2011-02-16

Family

ID=43584020

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202410239U Expired - Fee Related CN201749349U (en) 2010-06-29 2010-06-29 Control system for industrial fuel annealing furnace

Country Status (1)

Country Link
CN (1) CN201749349U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102444910A (en) * 2011-12-31 2012-05-09 杭州杭真真空工程技术有限公司 Combustion control system
CN102520701A (en) * 2011-12-29 2012-06-27 中冶南方（武汉）自动化有限公司 Control method of solution preparation center shared by multiple continuous steel annealing production lines
CN102759939A (en) * 2012-06-29 2012-10-31 湖北新华光信息材料有限公司 Control system and control method of annealing furnace
CN103399566A (en) * 2013-08-16 2013-11-20 中国工程物理研究院化工材料研究所 Method for warm isostatic pressing control and system thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102520701A (en) * 2011-12-29 2012-06-27 中冶南方（武汉）自动化有限公司 Control method of solution preparation center shared by multiple continuous steel annealing production lines
CN102520701B (en) * 2011-12-29 2013-12-25 中冶南方（武汉）自动化有限公司 Control method of solution preparation center shared by multiple continuous steel annealing production lines
CN102444910A (en) * 2011-12-31 2012-05-09 杭州杭真真空工程技术有限公司 Combustion control system
CN102759939A (en) * 2012-06-29 2012-10-31 湖北新华光信息材料有限公司 Control system and control method of annealing furnace
CN103399566A (en) * 2013-08-16 2013-11-20 中国工程物理研究院化工材料研究所 Method for warm isostatic pressing control and system thereof
CN103399566B (en) * 2013-08-16 2015-10-14 中国工程物理研究院化工材料研究所 The method controlled for warm isostatic pressed and system thereof

Similar Documents

Publication Publication Date Title
CN110145745A (en) A kind of multi-driving inverse-push waste incinerator ACC control method and system
CN201749349U (en) Control system for industrial fuel annealing furnace
CN1625669A (en) Burning control method of combustor and automatic control combustor
CN104801416A (en) Control system and control method for outlet temperature of novel coal mill
CN102444910A (en) Combustion control system
CN201731635U (en) Water boiler automatic control system
CN101089463A (en) Automatic control technology system of industrial steam boiler
CN203798184U (en) Automatic control system for extra-high-voltage electric kiln
CN202470021U (en) Intelligent control device of steam boiler system
CN112680563B (en) High-efficiency preheating system for metallization furnace material and dynamic control method
CN202382234U (en) Automatic temperature-control combustor
CN203869038U (en) Thermal storage combustion device
CN212777460U (en) Take excessive fire protection function integrated steam engine ignition controller
CN202049402U (en) Time-temperature double control heating control system for screed of paver
CN102444909B (en) Method and device for monitoring and controlling oxygen enrichment and compound combustion through distributed temperature field
CN213688890U (en) Thermoelectric type flameout protection device endurance test device
CN210802089U (en) Double-gas burner controller
CN102563645A (en) Gas burner
CN201443779U (en) Automatic energy-saving control system for boiler
CN212988001U (en) Combustion control system suitable for heat accumulating type smelting furnace
CN104215084A (en) Single-sided double-row double-regenerative type magnesium reduction furnace automatic control system
CN201335399Y (en) Automatic controller for biomass granule boiler
CN202177109U (en) Gas burner
CN103062765A (en) Automatic temperature control burner
CN201749357U (en) Industrial furnace group control information transmission system

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: HARBIN QIANCHENG TECHNOLOGY DEVELOPMENT CO., LTD.

Free format text: FORMER OWNER: HARBIN JINXIN ELECTRIC CO., LTD.

Effective date: 20131121

C41 Transfer of patent application or patent right or utility model
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Qian Cheng

Inventor before: Li Yanmei

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: LI YANMEI TO: QIAN CHENG

Free format text: CORRECT: ADDRESS; FROM: 150081 HARBIN, HEILONGJIANG PROVINCE TO: 150040 HARBIN, HEILONGJIANG PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20131121

Address after: 103, room 3, unit 28, Wang Wei District, Xiangfang District, Heilongjiang, Harbin 150040, China

Patentee after: Harbin Qiancheng Technology Development Co., Ltd.

Address before: 150081 Heilongjiang Province, Harbin city Xiangfang District haping Road No. 151-9

Patentee before: Harbin Jinxin Electric Co., Ltd.

DD01 Delivery of document by public notice
DD01 Delivery of document by public notice

Addressee: Harbin Qiancheng Technology Development Co., Ltd.

Document name: Notification of Termination of Patent Right

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110216

Termination date: 20170629