CN102382974A - Heat treating furnace full-automatic temperature control system - Google Patents
Heat treating furnace full-automatic temperature control system Download PDFInfo
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- CN102382974A CN102382974A CN201110315527XA CN201110315527A CN102382974A CN 102382974 A CN102382974 A CN 102382974A CN 201110315527X A CN201110315527X A CN 201110315527XA CN 201110315527 A CN201110315527 A CN 201110315527A CN 102382974 A CN102382974 A CN 102382974A
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- automatic valve
- temperature
- heat treating
- automatic
- gas
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- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Abstract
A heat treating furnace full-automatic temperature control system belongs to the technical filed of metallurgical industry. The system mainly comprises a thermoelectric couple arranged in a hearth, and a controller, an automatic valve server and an automatic valve which are sequentially connected with the thermoelectric couple. The automatic valve server and the automatic valve are used for controlling natural gas and auxiliary gas. The system disclosed by the invention feeds back data of temperature inside the hearth through the thermoelectric couple, and then transfers the data to the controller, the controller outputs instruction according to the given temperature requirement to carry out the valve for opening or closing natural gas and auxiliary gas, after a servo motor on the automatic valve receives the instruction of an actuator, the servo motor carries out valve opening size variation to ensure the consistence of the temperature inside the hearth and the given temperature. With the invention heat treating quality can be improved, gas consumption can be saved, control precision of temperature inside the gas heat treating furnace hearth can be improved, and thus the heat treating quality can be improved.
Description
Technical field
The invention belongs to technical field of metallurgy industry, relate to a kind of full-automatic temperature controlling system of heat treatment furnace that is used for.
Background technology
Process furnace is with the equipment of material or workpiece heating, uses and spreads all over many industry fields such as oil, chemical industry, metallurgy, machinery, thermal treatment, surface treatment, building materials, electronics, material, light industry, daily use chemicals, pharmacy.
In metallurgical industry, process furnace is meant traditionally METAL HEATING PROCESS and includes continuous furnace and cell-type process furnace etc. to the industrial furnace that is rolled into forging temperature.The process furnace of used for metal thermal treatment is also referred to as heat treatment furnace.By furnace, burner hearth is divided into preheating section, heating zone and soaking zone along its length; The feed end furnace temperature is low to its role is to utilize the furnace gas heat for preheating section, to improve the thermo-efficiency of stove.Heating zone is main heat supply section, and furnace gas temperature is higher, is beneficial to realize rapid heating.Soaking zone is positioned at discharge end, and furnace gas temperature and metal charge temperature difference are very little, and the section temperature of the material base that guarantees to come out of the stove is even.The stove that is used to heat the light section material base has only preheating section and heating zone.The common using gas fuel of continuous furnace, heavy oil or fine coal, the burning lump coal that has.
The heat treatment furnace temperature precisely, directly influence quality product, the warm territory of special dual phase steel is narrower, how accurately to control in the stove is temperature, is a great problem.
Existing combustion gas heat treatment furnace temperature controlling system adopts the electronic regulator of PID control law more; Because factors such as the complex characteristics of gas furnace and strong jamming, time lag are big make fire box temperature be difficult to accurate control, temperature fluctuation is bigger; Can not satisfy the heat treatment requirements of temperature control precision, influence thermal treatment quality smaller or equal to 5～7 ℃.For guaranteeing the minimum temperature value, heighten desired temperature usually, then be prone to cause workpiece scaling loss and gas consumption to increase.
Summary of the invention
The object of the invention is exactly to above-mentioned present situation, and a kind of full-automatic temperature controlling system that is used for heat treatment furnace that proposes.
Main technical schemes of the present invention: the full-automatic temperature controlling system of heat treatment furnace, the unit, automatic valve servomechanism and the automatic valve that mainly comprise the thermopair that is arranged in the burner hearth, be connected successively with thermopair.
Usually, automatic valve servomechanism according to the invention and automatic valve are used for the control of Sweet natural gas and combustion-supporting gas, and servomechanism adopts servomotor usually.
Unit of the present invention can adopt control instruments commonly used; Also can adopt integrated non-linear logic module, time lag module, obfuscation module, combination governor and conversion module to form intelligent controller; Cooperate control net, EPA, man-machine interface; Realize visual control, make that the interior temperature control error of continuous heat treating furnace is little, stability and safety are higher.
System of the present invention is temperature data in thermopair feedback burner hearth; Be transferred to unit, unit is according to given temperature requirement, output order; The valve of Sweet natural gas and combustion air is opened or is closed in execution; Servomotor on the automatic valve is received performer and is instructed, and carries out valve opening size shift in position, guarantees that temperature is with consistent to fixed temperature in the burner hearth.
The present invention can improve thermal treatment quality, saves gas consumption, improves the temperature control precision in the combustion gas thermal treatment burner hearth, and then improves thermal treatment quality.
Description of drawings
Accompanying drawing 1 is the full-automatic temperature controlling system block diagram of the embodiment of the invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in detail.
Embodiment
Present embodiment is used for the full-automatic temperature controlling system of heat treatment furnace shown in accompanying drawing 1, the control instruments, Sweet natural gas and combustion-supporting gas automatic valve servomotor, Sweet natural gas and the combustion-supporting gas automatic valve that mainly comprise the thermopair that is arranged in the burner hearth, be connected successively with thermopair.
Present embodiment is 1140 ℃ like design temperature on the control instruments, and temperature is 1000 ℃ in the stove; Thermopair is collected temperature data in the stove, feeds back to control instruments, and control instruments receives temperature data; According to given temperature requirement, send to automatic valve and to open valve instruction, promptly the servomotor on Sweet natural gas and combustion air automatic valve sends and just changes instruction; Servomotor receives just changes instruction, and valve open is just changeed in beginning.The burner works better is heated in stove.When furnace temperature is raised to 1141 ℃, thermopair is collected temperature data in the burner hearth, feeds back to control instruments, and control instruments is provided with requirement according to temperature, sending the counter-rotating instruction, and servomotor is received instruction, carries out the counter-rotating instruction, valve closes.Burner cuts out, and stops in burner hearth, to heat.
Claims (3)
1. full-automatic temperature controlling system of heat treatment furnace, the unit, automatic valve servomechanism and the automatic valve that it is characterized in that comprising the thermopair that is arranged in the burner hearth, be connected successively with thermopair.
2. full-automatic temperature controlling system as claimed in claim 1 is characterized in that said automatic valve servomechanism and automatic valve are the automatic valve servomechanism and the automatic valve of Sweet natural gas and combustion-supporting gas.
3. according to claim 1 or claim 2 full-automatic temperature controlling system is characterized in that said automatic valve servomechanism is a servomotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110315527XA CN102382974A (en) | 2011-10-18 | 2011-10-18 | Heat treating furnace full-automatic temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110315527XA CN102382974A (en) | 2011-10-18 | 2011-10-18 | Heat treating furnace full-automatic temperature control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102382974A true CN102382974A (en) | 2012-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110315527XA Pending CN102382974A (en) | 2011-10-18 | 2011-10-18 | Heat treating furnace full-automatic temperature control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN102382974A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109491421A (en) * | 2018-11-22 | 2019-03-19 | 重庆百尺竿头科技有限公司 | The intelligent temperature control system and its method recycled based on metallurgical secondary resource |
| CN114107653A (en) * | 2021-11-26 | 2022-03-01 | 北京京诚之星科技开发有限公司 | Annealing furnace temperature control method, device and system |
-
2011
- 2011-10-18 CN CN201110315527XA patent/CN102382974A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109491421A (en) * | 2018-11-22 | 2019-03-19 | 重庆百尺竿头科技有限公司 | The intelligent temperature control system and its method recycled based on metallurgical secondary resource |
| CN114107653A (en) * | 2021-11-26 | 2022-03-01 | 北京京诚之星科技开发有限公司 | Annealing furnace temperature control method, device and system |
| CN114107653B (en) * | 2021-11-26 | 2023-03-21 | 北京京诚之星科技开发有限公司 | Annealing furnace temperature control method, device and system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120321 |