CN109471405A - Device is transformed in annealing furnace heating tube current monitoring - Google Patents
Device is transformed in annealing furnace heating tube current monitoring Download PDFInfo
- Publication number
- CN109471405A CN109471405A CN201811524773.4A CN201811524773A CN109471405A CN 109471405 A CN109471405 A CN 109471405A CN 201811524773 A CN201811524773 A CN 201811524773A CN 109471405 A CN109471405 A CN 109471405A
- Authority
- CN
- China
- Prior art keywords
- current
- signal
- heating tube
- module
- value
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 42
- 238000000137 annealing Methods 0.000 title claims abstract description 30
- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 238000012806 monitoring device Methods 0.000 claims abstract description 9
- 238000004458 analytical method Methods 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000004088 simulation Methods 0.000 claims description 2
- 210000001367 artery Anatomy 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 230000009466 transformation Effects 0.000 abstract description 5
- 230000004044 response Effects 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14006—Safety, monitoring in general
Abstract
The present invention introduces a kind of annealing furnace heating tube current monitoring transformation device, heating tube including being mounted on annealing furnace bottom, the heating tube is connected with service cable, current monitoring device is installed on the service cable, the current monitoring device is by Current Mutual Inductance module, transmitter module and PLC Analog input mModule are constituted, the input terminal of the Current Mutual Inductance module is electrically connected with service cable, the output end of Current Mutual Inductance module is connected with the input terminal of transmitter module, the output end of the transmitter module is connected with the input terminal of PLC Analog input mModule, the output end and operating terminal of the PLC Analog input mModule communicate to connect.Transformation device of the invention can find failure problems, and feedback alarm in first time, and reliability is preferable, and fast response time, reduces accident rate, so that substandard product rate is substantially reduced, to save a large amount of cost for enterprise.
Description
Technical field
The present invention relates to the renovation technique of annealing furnace, device is transformed in specifically a kind of annealing furnace heating tube current monitoring, is belonged to
In copper pipe processing technical field.
Background technique
Now at present during manufacturing high-precision copper pipe, to copper pipe carry out annealing be important process it
One, so-called annealing is that metal is heated slowly to certain temperature, keeps enough time, then a kind of gold cooling with Reasonable Speed
Belong to heat treatment process.Purpose be make by casting, forging rolling, stretch process material softening, improve plasticity and toughness, make chemistry at
Divide homogenization, removes residual stress, or obtain expected physical property, the principal element of the hardness of annealing effect copper pipe is crystal grain
Degree, the factor for influencing grain size size mainly have: annealing temperature and soaking time.At present when carrying out annealing process, need
It to use and arrive annealing furnace, by being heated up annealing furnace come heating copper tube, since annealing furnace is added by electric heating tube
Heat heating, when heating tube is abnormal, heating temperature will be impacted, to be caused to the quality of copper pipe product hidden
Suffer from.And annealing furnace used at present, there is no monitoring in real time to the electric current of each heating tube, operator can only lead to
The variation of excess temperature goes to judge the exception of heating tube, but cannot intuitively go the quality of discovery heating tube, be easy to cause production in this way
The quality of lot accident of product.
Summary of the invention
For above-mentioned deficiency in the prior art, it is a primary object of the present invention to solve to lack in now current annealing furnace pair
The monitoring means of heating tube quality lead to the problem of cannot finding failure in time, and heating tube can be monitored in real time by introducing one kind
Device is transformed in the annealing furnace heating tube current monitoring of electric current.
Technical solution of the present invention: device is transformed in annealing furnace heating tube current monitoring, including being mounted on annealing furnace bottom
Heating tube, the heating tube are connected with service cable, which is characterized in that current monitoring dress is equipped on the service cable
It sets, the current monitoring device is made of Current Mutual Inductance module, transmitter module and PLC Analog input mModule, the electricity
The input terminal of stream mutual inductance module is electrically connected with service cable, the input terminal phase of the output end and transmitter module of Current Mutual Inductance module
Even, the output end of the transmitter module is connected with the input terminal of PLC Analog input mModule, the PLC analog input mould
The output end and operating terminal of block communicate to connect；
The Current Mutual Inductance module: for acquiring the electric current original signal on service cable in real time, and the electric current of acquisition is original
Signal is changed into analog current signal, then analog current signal is sent to transmitter module；
The transmitter module: for receiving the analog current signal of Current Mutual Inductance module input, then by analog current signal
It is converted into standard current signal, then standard current signal is exported and gives PLC Analog input mModule；
The PLC Analog input mModule: believe for receiving the standard current signal of transmitter module input, and to normalized current
Number calculating analysis is carried out, analysis result by control signal is then sent to operating terminal；
The operating terminal: for receiving the control signal of PLC Analog input mModule transmission, and electric current is shown by display screen
State；
The PLC Analog input mModule carries out analytical calculation when calculating analysis as follows:
1) standard current signal received is normalized to the digital quantity of 0-27648；
2) digital quantity after standardizing in step 1) is converted to the engineering value of 0-400A；
3) substitute into formula for engineering value obtained in step 2 as unknown number X: then Y is calculated in Y=(X/27648) * 400
Value；
4) real-time temperature values for detecting heating tube obtain after the difference of real-time temperature values and preset temperature value is carried out PID calculating
Pulse signal changes percentage；
5) when pulse signal variation percentage reaches 100%, the Y value in step 3) is compared with preset normal value 14860
Compared with, if Y value is less than normal value 14860, generation alarm signal；If Y value is greater than or equal to normal value 14860, report is not generated
Alert signal；
6) alarm signal operating terminal is output to be shown and alarmed.
In the present invention, the PID calculation method used in PLC Analog input mModule is a kind of existing calculation method, this
The technical staff in field can know that the PID calculation method is common temperature computation method on industrial control equipment, here
By introducing PID calculation method and combining preset calculation method, to help to judge whether heating tube current is in normal condition.
Optimally, the numerical value of the analog current signal is 0-5A, and the numerical value of the standard current signal is 4-20mA.
Optimally, the model BH-0.66 of the Current Mutual Inductance module.
Optimally, the model MIK-DJ of the transmitter module.
Compared with the existing technology, the invention has the following advantages:
1, transformation device of the invention is monitored in real time by the electric current to heating tube, can be asked in first time discovery failure
Topic, and feedback alarm can prevent copper pipe batch so that staff is unwitting after solving the problems, such as current heating tube damage
The generation of quality accident.
2, reliability is preferable, and fast response time, is not necessarily to human attendance, realizes the automatic monitoring pipe for annealing furnace
Reason, hence it is evident that improve the safety in production process.
3, due to reducing accident rate, so that substandard product rate is substantially reduced, to save largely for enterprise
Cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that device is transformed in annealing furnace heating tube current monitoring of the present invention；
Fig. 2 is the structural schematic diagram of current monitoring device in the present invention.
In figure, 1-heating tube, 2-service cables, 3-current monitoring devices, 31-Current Mutual Inductance modules, 32-pick-ups
Device module, 33-PLC Analog input mModules, 4-operating terminals.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
As Figure 1-Figure 2, device is transformed in annealing furnace heating tube current monitoring of the invention, including is mounted on annealing furnace bottom
The heating tube 1 in portion, the heating tube 1 are connected with service cable 2, and heating tube 1 here heats annealing furnace after heating up.This
The innovation of invention is, current monitoring device 3 is equipped on the service cable 2, the current monitoring device 3 is by electric current
Mutual inductance module 31, transmitter module 32 and PLC Analog input mModule 33 are constituted, the input terminal of the Current Mutual Inductance module 31 with
Service cable 2 is electrically connected, and the output end of Current Mutual Inductance module 31 is connected with the input terminal of transmitter module 32, the transmitter mould
The output end of block 32 is connected with the input terminal of PLC Analog input mModule 33, the output end of the PLC Analog input mModule 33
It is communicated to connect with operating terminal 4；The Current Mutual Inductance module 31: for acquiring the electric current original signal on service cable 2 in real time,
And the electric current original signal of acquisition is changed into analog current signal, then analog current signal is sent to transmitter module 32；
The transmitter module 32: for receiving the analog current signal of the input of Current Mutual Inductance module 31, then by analog current signal
It is converted into standard current signal, then standard current signal is exported to PLC Analog input mModule 33；The PLC analog quantity is defeated
Enter module 33: for receiving the standard current signal of the input of transmitter module 32, and calculating analysis being carried out to standard current signal,
Then analysis result is sent to operating terminal 4 by controlling signal；The operating terminal 4: for receiving PLC analog input
The control signal that module 33 is sent, and current status is shown by display screen.
In the present invention, the PLC Analog input mModule carries out analytical calculation when calculating analysis as follows:
1) standard current signal received is normalized to the digital quantity of 0-27648；
2) digital quantity after standardizing in step 1) is converted to the engineering value of 0-400A；
3) substitute into formula for engineering value obtained in step 2 as unknown number X: then Y is calculated in Y=(X/27648) * 400
Value；
4) real-time temperature values for detecting heating tube obtain after the difference of real-time temperature values and preset temperature value is carried out PID calculating
Pulse signal changes percentage；
5) when pulse signal variation percentage reaches 100%, the Y value in step 3) is compared with preset normal value 14860
Compared with, if Y value is less than normal value 14860, generation alarm signal；If Y value is greater than or equal to normal value 14860, report is not generated
Alert signal；
6) alarm signal operating terminal 4 is output to be shown and alarmed.
In the present invention, the numerical value of the analog current signal is 0-5A, and the numerical value of the standard current signal is 4-20mA,
The model BH-0.66 of the Current Mutual Inductance module, the model MIK-DJ of the transmitter module.
When work, the current signal on service cable 2, and the current signal that will test are detected by Current Mutual Inductance module 31
The analog current signal of 0-5A is converted to, usual analog current signal is 5A, and then Current Mutual Inductance module 31 is electric by the simulation
Stream signal is input to transmitter module 32, is believed the normalized current that analog current signal is converted to 4-20mA by transmitter module 32
Number, then standard current signal is input to PLC Analog input mModule 33, PLC analog input mould again by transmitter module 32
After block 33 calculates standard current signal, then the display of operating terminal 4 is output signals to, what operating terminal 4 here used
It is common industrial personal computer display terminal.
Transformation device of the invention can the state to every heating tube carried out real-time online monitoring, and carry out abnormal feelings
Condition tracking, to change the discontinuous mode inspected periodically in the past, greatly reduces the incidence of unit exception.When this hair of completion
After bright transformation, when heating tube occurring blowing equal exception, improved device can be shown by electric current, operator's energy
It is enough found in time by monitored picture, notifies maintenance personal to handle, caused by avoiding long-time heating exception in this way
Temperature influences.Timely discovery processing is realized, the purpose tracked in time can be hidden to avoid annealing temperature quality caused by product
Suffer from, improves the controllability of equipment.
It should be noted that above embodiments are only to illustrate technical solution of the present invention rather than restriction technologies scheme, although
The invention is described in detail with reference to the preferred embodiments by applicant, those skilled in the art should understand that, those are right
The modification or equivalent replacement that technical solution of the present invention carries out, cannot be detached from the objective and range of the technical program, should all cover
In scope of the invention as claimed.
Claims (4)
1. device is transformed in annealing furnace heating tube current monitoring, the heating tube (1) including being mounted on annealing furnace bottom, the heating tube
(1) it is connected with service cable (2), which is characterized in that it is equipped on the service cable (2) current monitoring device (3), it is described
Current monitoring device (3) is by Current Mutual Inductance module (31), transmitter module (32) and PLC Analog input mModule (33) structure
At, the input terminal of the Current Mutual Inductance module (31) is electrically connected with service cable (2), the output end of Current Mutual Inductance module (31) with
The input terminal of transmitter module (32) is connected, the output end of the transmitter module (32) and PLC Analog input mModule (33)
Input terminal be connected, the output end of the PLC Analog input mModule (33) and operating terminal (4) communicate to connect；
The Current Mutual Inductance module (31): for acquiring the electric current original signal on service cable (2) in real time, and by the electricity of acquisition
Stream original signal is changed into analog current signal, then analog current signal is sent to transmitter module (32)；
The transmitter module (32):, then will simulation for receiving the analog current signal of Current Mutual Inductance module (31) input
Current signal is converted into standard current signal, then standard current signal is exported and gives PLC Analog input mModule (33)；
The PLC Analog input mModule (33): for receiving the standard current signal of transmitter module (32) input, and to mark
Quasi- current signal carries out calculating analysis, and analysis result is then sent to operating terminal (4) by controlling signal；
The operating terminal (4): for receiving the control signal of PLC Analog input mModule (33) transmission, and pass through display screen
Show current status；
The PLC Analog input mModule (33) carries out analytical calculation when calculating analysis as follows:
The standard current signal received is normalized to the digital quantity of 0-27648；
Digital quantity after standardizing in step 1) is converted to the engineering value of 0-400A；
Substitute into formula for engineering value obtained in step 2 as unknown number X: then Y=(X/27648) * 400 is calculated Y's
Value；
The real-time temperature values for detecting heating tube obtain arteries and veins after the difference of real-time temperature values and preset temperature value is carried out PID calculating
Rush signal intensity percentage；
When pulse signal variation percentage reaches 100%, the Y value in step 3) is compared with preset normal value 14860
Compared with, if Y value is less than normal value 14860, generation alarm signal；If Y value is greater than or equal to normal value 14860, report is not generated
Alert signal；
Alarm signal is output to operating terminal (4) to be shown and alarmed.
2. device is transformed in annealing furnace heating tube current monitoring according to claim 1, which is characterized in that the analog current
The numerical value of signal is 0-5A, and the numerical value of the standard current signal is 4-20mA.
3. device is transformed in annealing furnace heating tube current monitoring according to claim 2, which is characterized in that the Current Mutual Inductance
The model BH-0.66 of module (31).
4. device is transformed in annealing furnace heating tube current monitoring according to claim 3, which is characterized in that the transmitter mould
The model MIK-DJ of block (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811524773.4A CN109471405B (en) | 2018-12-13 | 2018-12-13 | Annealing furnace heating pipe current monitoring and reforming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811524773.4A CN109471405B (en) | 2018-12-13 | 2018-12-13 | Annealing furnace heating pipe current monitoring and reforming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109471405A true CN109471405A (en) | 2019-03-15 |
| CN109471405B CN109471405B (en) | 2024-03-19 |
Family
ID=65675333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811524773.4A Active CN109471405B (en) | 2018-12-13 | 2018-12-13 | Annealing furnace heating pipe current monitoring and reforming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109471405B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112505584A (en) * | 2020-11-27 | 2021-03-16 | 重庆龙煜精密铜管有限公司 | Grounding leakage fault point positioning system for heating pipe of annealing furnace |
| CN113985935A (en) * | 2021-05-29 | 2022-01-28 | 苏州芯默科技有限公司 | Method for real-time monitoring process state of rapid heating furnace by current value |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH161170A (en) * | 1931-05-23 | 1933-04-15 | Siemens Ag | Method and device for regulating the temperature in an electrically heated shaft annealing furnace. |
| US3301483A (en) * | 1963-05-10 | 1967-01-31 | Wiener Schwachstromwerke Gmbh | Regulating device for furnaces, particularly annealing furnaces |
| CN1171448A (en) * | 1996-06-06 | 1998-01-28 | 伊西康公司 | Constant current needle annealing |
| CN101592961A (en) * | 2008-05-26 | 2009-12-02 | Ls产电株式会社 | Temperature control modules and temperature-controlled process |
| CN103209796A (en) * | 2010-11-19 | 2013-07-17 | 三菱电机株式会社 | Wire electrode annealing treatment method and wire electric discharge machine |
| CN206618503U (en) * | 2016-11-29 | 2017-11-07 | 上海日港置信非晶体金属有限公司 | A kind of amorphous core is heat-treated intelligent monitoring and controlling device |
| CN209373409U (en) * | 2018-12-13 | 2019-09-10 | 重庆龙煜精密铜管有限公司 | Device is transformed in annealing furnace heating tube current monitoring |
-
2018
- 2018-12-13 CN CN201811524773.4A patent/CN109471405B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH161170A (en) * | 1931-05-23 | 1933-04-15 | Siemens Ag | Method and device for regulating the temperature in an electrically heated shaft annealing furnace. |
| US3301483A (en) * | 1963-05-10 | 1967-01-31 | Wiener Schwachstromwerke Gmbh | Regulating device for furnaces, particularly annealing furnaces |
| CN1171448A (en) * | 1996-06-06 | 1998-01-28 | 伊西康公司 | Constant current needle annealing |
| CN101592961A (en) * | 2008-05-26 | 2009-12-02 | Ls产电株式会社 | Temperature control modules and temperature-controlled process |
| CN103209796A (en) * | 2010-11-19 | 2013-07-17 | 三菱电机株式会社 | Wire electrode annealing treatment method and wire electric discharge machine |
| CN206618503U (en) * | 2016-11-29 | 2017-11-07 | 上海日港置信非晶体金属有限公司 | A kind of amorphous core is heat-treated intelligent monitoring and controlling device |
| CN209373409U (en) * | 2018-12-13 | 2019-09-10 | 重庆龙煜精密铜管有限公司 | Device is transformed in annealing furnace heating tube current monitoring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112505584A (en) * | 2020-11-27 | 2021-03-16 | 重庆龙煜精密铜管有限公司 | Grounding leakage fault point positioning system for heating pipe of annealing furnace |
| CN112505584B (en) * | 2020-11-27 | 2024-01-12 | 重庆龙煜精密铜管有限公司 | Positioning system for earth leakage fault point of heating tube of annealing furnace |
| CN113985935A (en) * | 2021-05-29 | 2022-01-28 | 苏州芯默科技有限公司 | Method for real-time monitoring process state of rapid heating furnace by current value |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109471405B (en) | 2024-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104807321B (en) | Electric melting magnesium furnace running monitoring system and method based on cloud computing technology | |
| CN103412542B (en) | A kind of integrated circuit technology unit exception early warning technology method of data-driven | |
| CN109471405A (en) | Device is transformed in annealing furnace heating tube current monitoring | |
| CN102885392A (en) | Quality monitoring system and method of tobacco primary process | |
| CN106017729A (en) | SPC (Statistical Process Control) based motor temperature monitoring method | |
| CN203611441U (en) | Temperature monitoring device for production line | |
| CN110032093A (en) | A kind of engineering Electrical Safety management method of view-based access control model Internet of Things | |
| CN114640905B (en) | Ceramic production cloud data processing control system and method | |
| CN108265157A (en) | Intelligent arc furnace steelmaking system | |
| CN209373409U (en) | Device is transformed in annealing furnace heating tube current monitoring | |
| CN103024959B (en) | Intelligent electrode regulator and intelligent electrode control method | |
| CN204679435U (en) | Tool and mould heat fatigue tester for testing | |
| CN109407717A (en) | A kind of temperature controller based on Adaptive Fuzzy PID | |
| CN109986054A (en) | The multi-point temperature detection and cooling control system of liquid-state forging die | |
| CN109119923A (en) | Transformer and distribution station device intelligence cruising inspection system and its method for inspecting | |
| CN202377498U (en) | Online monitoring and control device for smelting of copper alloy | |
| CN205210727U (en) | Merit device is transferred in diamond heating | |
| CN208432894U (en) | A kind of toughened glass production line control system | |
| CN104090557B (en) | A kind of decarbonizing furnace information system and its control method based on fieldbus element | |
| CN216585072U (en) | Multi-section annealing control system of bell-type bright annealing furnace | |
| CN201791938U (en) | Steel leakage prediction system of continuous casting crystallizer | |
| CN210862274U (en) | Electric furnace temperature detection device based on PLC control | |
| CN102902246A (en) | Online monitoring and maintaining system for plastic extrusion units | |
| CN202916660U (en) | Automatic control system for industrial silicon furnaces | |
| CN116107265B (en) | Remote control system and method for artificial board processing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |