CN2688727Y - Electrolyte temperature measuring device of network electrolyzing cell - Google Patents
Electrolyte temperature measuring device of network electrolyzing cell Download PDFInfo
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- CN2688727Y CN2688727Y CN 200420008499 CN200420008499U CN2688727Y CN 2688727 Y CN2688727 Y CN 2688727Y CN 200420008499 CN200420008499 CN 200420008499 CN 200420008499 U CN200420008499 U CN 200420008499U CN 2688727 Y CN2688727 Y CN 2688727Y
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 37
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 12
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 6
- 238000007726 management method Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 229910018487 Ni—Cr Inorganic materials 0.000 claims description 4
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 4
- 238000013500 data storage Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 27
- 238000012544 monitoring process Methods 0.000 abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 7
- 239000004411 aluminium Substances 0.000 abstract description 5
- 230000006855 networking Effects 0.000 abstract description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008676 import Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000012369 In process control Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Arrangements For Transmission Of Measured Signals (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to an electrolyte temperature measuring device of a network electrolyzing cell, wherein, a complete embedded system is composed of nine integrated circuits, and a monolithic computer with an A/D converter is made to be the core; the output terminal of the A/D conversion buffer module is connected with the monolithic computer, via the analog input port set by programming. A keyboard can be formed into a 4*4 key via the 8 positions port; a liquid crystal display drives a standard 128*64 lattice liquid crystal module via the 8 positions port of the monolithic computer; a module of a CAN communication is connected with the monolithic computer via a data bus of the monolithic computer, and operate the communication of the CAN bus by reading and writing the data area; the module of a system clock is connected with the monolithic computer via an SPI interface. The module for the temperature measurement of a cold end is connected with the monolithic computer via the interface of the ONE-WIRE (1 wire); an RS232 module is obtained by the level conversion proceeding to the RS232 on the monolithic computer to be transmitted directly to a computer; the module for the power management is connected directly to the power supply of the monolithic computer. Basing on the CAN bus network or the mode of the interface of the computer RS232, the electrolyte temperature measuring device transmits the electrolyte temperature measured to a groove control machine and a monitoring machine; the electrolyte temperature measuring device cooperates with the programs of the control computer, the control system and the monitoring machine for the aluminium electrolysis, and a temperature measurement program cooperated with the electrolyte temperature measuring device of the network electrolyzing cell is provided; therefore, the functions of the measurement, the storage, the networking transmission and the automatic generation of the report forms of the.
Description
Technical field the utility model belongs to the thermal measurement technical field, particularly a kind of device that is used for non-ferrous metal aluminum cell electrolyte temperature detection.
Background technology is present, fuzzy control technology is all adopted in the automatic control of domestic large-scale pre-baked aluminum electrolysis cell, be based on that the fuzzy control theory of aluminium cell sets up, its core is to reach materials balance of electrolytic cell control by the controlled oxidation aluminum concentration, to keep the operation of electrolyzer high current efficiency.But current efficiency is not the single function of alumina concentration, and it also be can not be ignored by the influence of electrolyte temperature.Theory and practice all proves: current efficiency and electrolyte temperature are in close relations, and electrolyte temperature is to influence one of the most direct and most important factor of current efficiency.Yet, because measured, the restriction of sensing technology, the parameter (electrolyte temperature, molecular ratio, two levels etc.) of reflection electrolytic bath condition is the off-line data of manual measurement mostly, the off-line data of these measurements has hysteresis quality in process control, this is the restraining factors that further improve automatic control accuracy.In the electrolyte temperature context of detection, at present mostly the thermometric mode that all adopts of man of aluminium manufacturer is manual measurement, manual record, manually imports computer mode, it is long to have operating process, the measurement frequency is low, the data fallibility, can not directly not link on monitoring equipment and the slot control machine problem such as the hysteresis quality that has caused temperature data to measure is big.Therefore, this important operating parameter of electrolyte temperature is never included the category of electrolyzer fuzzy control in, makes the control of the daily operation of electrolyzer and energy and material balance state very rough.
The summary of the invention the purpose of this utility model is to provide a kind of network type electrolytic tank electrolysis electrolyte temperature measuring device, it realizes the measurement of electrolytic tank electrolysis matter temperature based on CAN bus network mode, storage, the automatic systematic function of networking transmission and form, directly the temperature data that the production scene is recorded in time sends on monitoring equipment and the corresponding slot control machine from the scene in batches by the CAN bus mode, realize sharing of data, avoided manually copying the error that data cause, also can increase the measurement frequency, improve the temperature online detection, for the production manager important parameter temperature conditions that reflection groove condition is provided promptly and accurately, also will lay a good foundation for the structure that improves controlled levels and expert decision system.
For achieving the above object, the technical scheme that the utility model is taked is: the complete embedded system that this network type electrolytic tank electrolysis electrolyte temperature measuring device is made up of nine unicircuit, wherein with the band A/D converter, design has the micro-chip of supporting thermometric program to be its core, all the other eight unicircuit are coupled respectively, wherein: the conversion buffered module of A/D adopts isolates chopper amplifier and peripheral circuit formation isolation buffer module thereof, input signal is isolated, guarantee by isolation signals undistorted, its function is to isolate the electromotive force that thermopair produces, avoid misquoting of big voltage to destroy into CPU is produced, input voltage is carried out filtering, guarantee the accurate of A/D conversion, its output is connected with the analog input mouth of micro-chip by programmed settings; Keysheet module adopts a 4*4 keyboard to constitute, and its function provides the input tool of data input and menu option, can form the 4*4 key by 8 mouths of micro-chip; Liquid-crystal display utilizes the liquid crystal control unit, and promptly row and column autoscan chip constitutes liquid crystal control module, and its function provides the instrument of outputs such as data and information, can drive the 128*64 lattice lcd module of standard by 8 mouths of micro-chip; The CAN communication module adopts CAN interface controller and peripheral circuit to constitute, and its function provides the passage of data transmission, links to each other with micro-chip by data bus of micro-chip, by the read-write operation CAN bus communication to the data field; System clock adopts real-time timepiece chip to add the peripheral circuit formation, and its function provides network type electrolytic tank electrolysis electrolyte temperature measuring device required real-time clock, so that the determination data storage, is connected with micro-chip by the SPI interface the concrete time of renewal; Cold junction temperature is measured and is adopted a line thermometric device to form, and its function is that thermocouple temperature measurement needs cold junction temperature could calculate the measurement temperature, and the cold junction temperature measurement module provides cold junction temperature, is connected with micro-chip by ONE-WIRE (1 line) interface; The RS232 module by to micro-chip with the RS232 mouth carry out level conversion and obtain, its function provides another passage of data transmission, mainly being can provide computer is directly transmitted; Power management module adopts power management chip to form, its function provide to temperature measuring equipment be with that the Ni battery boosts, warning such as overcurrent, charging, voltage are low, directly be connected with microcontroller power supply.
Above-mentioned network type electrolytic tank electrolysis electrolyte temperature measuring device, wherein said CAN EBI and RS232 serial ports are designed to same interface, by the pin number different conversions that realize between the transmission path.
Above-mentioned network type electrolytic tank electrolysis electrolyte temperature measuring device, what the conversion buffered module of wherein said A/D was selected for use is 24 ∑s-Δ type A/D converter.
Above-mentioned network type electrolytic tank electrolysis electrolyte temperature measuring device, what the thermopair access port of wherein said cold junction temperature measurement module connected is nickel chromium triangle-nisiloy K type thermopair.
The network type electrolytic tank electrolysis electrolyte temperature measuring device that the utility model provides, be a kind of, measure content and contain Measuring Time, envrionment temperature (cold junction temperature), electrolytic tank electrolysis matter temperature for measuring the special special-purpose temperature measuring equipment of developing of aluminum cell electrolyte temperature.The electrolysis Field Bus CAN network mode of effectively having utilized this device transmits temperature signal, and temperature measuring equipment is inserted on-the-spot industrial control network system, has broken through the technology limitation of existing temperature measurer both at home and abroad.Send measured electrolyte temperature to slot control machine and monitoring equipment based on the CAN bus network, the thermometric program that cooperates Computer Control System of Aluminium Electrolysis monitoring equipment program to match with network type electrolytic tank electrolysis electrolyte temperature measuring device, realize the automatic systematic function of measurement, storage, networking transmission and the form of electrolytic tank electrolysis matter temperature, realize sharing of data, avoided manually copying the error that data cause, also can increase the measurement frequency, improve the temperature online detection.The utility model is custom-designed for the electrolysis of aluminum factory building, can import parameters such as electrolyzer number and network communication number.Can adopt the micro-chip of up-to-date integrated high-accuracy 24 ∑s-Δ type A/D converter, make temperature measuring equipment reach the highest precision, and have good freedom from jamming.Use high accuracy number nickel chromium triangle-nisiloy K type thermocouple measurement cold junction temperature, make cold junction compensation equally also reach very high precision.CAN EBI and RS232 serial ports are designed to same interface, by the pin number different conversions that realize between the transmission path, the versatility of transmission path are strengthened.
Description of drawings Fig. 1 is the overall construction drawing of network type electrolytic tank electrolysis electrolyte temperature measuring device embodiment
Fig. 2 network type electrolytic tank electrolysis electrolyte temperature measuring device embodiment cut-away view
Fig. 3 is a network type electrolytic tank electrolysis electrolyte temperature measuring device embodiment outside view
The 1-power interface; The 2-power switch; 3-charging finishing pilot lamp; The 4-charging indicator light; The 5-liquid-crystal display; 6-RS232 mouth and CAN mouth; The 7-keyboard; Standby mouthful of 8-; 9-thermopair access port.
Embodiment is in conjunction with Fig. 1, Fig. 2, the network type electrolytic tank electrolysis electrolyte temperature measuring device that the utility model provides, during concrete enforcement, form complete embedded system by nine unicircuit, be its core with the micro-chip with 24 ∑s-Δ type A/D converter wherein, all the other eight unicircuit are coupled respectively.Wherein: the conversion buffered module employing of A/D temperature drift in the technical grade temperature range has only the high precision of 1 microvolt to isolate chopper amplifier and peripheral circuit formation isolation buffer module is isolated input signal, guarantee by isolation signals undistorted, its function is to isolate the electromotive force that thermopair produces, avoid misquoting of big voltage to destroy into CPU is produced, input voltage is carried out filtering, guarantee the accurate of A/D conversion, its output is connected with the analog input mouth of micro-chip by programmed settings; Keysheet module adopts the membrane keyboard of a 4*4 to constitute, and its function provides the input tool of data input and menu option, can form the 4*4 key by 8 mouths of micro-chip; Liquid-crystal display utilizes the liquid crystal control unit, and promptly row and column autoscan chip constitutes liquid crystal control module, and its function provides the instrument of outputs such as data and information, can drive the 128*64 lattice lcd module of standard by 8 mouths of micro-chip; The CAN communication module adopts the CAN interface controller of PHILIPS Co. and peripheral circuit to constitute, and its function provides the passage of data transmission, links to each other with micro-chip by data bus of micro-chip, by the read-write operation CAN bus communication to the data field; System clock adopts the real-time timepiece chip of DALLAS company to add the peripheral circuit formation, can the demonstration time arrive second, profit year is carried out add-subtract time automatically, its function provides network type electrolytic tank electrolysis electrolyte temperature measuring device required real-time clock, so that determination data storage, the concrete time of upgrading, be connected with micro-chip by the SPI interface; The cold junction temperature measurement has adopted the line thermometric device of DALLAS to form, precision reaches 0.5 degree centigrade, its function is that thermocouple temperature measurement needs cold junction temperature could calculate the measurement temperature, and the cold junction temperature measurement module provides cold junction temperature, is connected with micro-chip by ONE-WIRE (1 line) interface; The RS232 module by to micro-chip with the RS232 mouth carry out level conversion and obtain, circuit adds external circuit with MAXIUM company chip and constitutes, its function provides another passage of data transmission, mainly can provide directly transmission of computer; Power management module adopts the power management chip of Texas Instruments to form, voltage can be brought up to 5 volts from 2 volts, efficient can reach more than 85%, its function provide to temperature measuring equipment be with that the Ni battery boosts, overcurrent, charging, the low warning that waits of voltage directly is connected with microcontroller power supply.
As shown in Figure 3, this network type electrolytic tank electrolysis electrolyte temperature measuring device can be designed to handheld thermometer, and its shell is made by Stainless Steel, to adapt to electrolysis of aluminum factory building upfield, high electric field, pyritous characteristics.
RS232 and CAN mouth 6 are same interface, by the pin number different conversions that realize between the transmission path.The available supporting interface line that provides can connect.
● the RS232 interface: ● the CAN EBI:
Pin function pin function
2———————OUT 1———————CANH
3———————IN 9———————CANL
4———————DTR
5———————GND
6———————DTR
7———————RTS
8———————RTS
Power interface 1:DC5V, 200mA
Thermopair access port 9: connect nickel chromium triangle-nisiloy K type thermopair
● Specifeca tion speeification:
1. cooperate K type thermopair, temperature measurement range: 0～1300 ℃.
2. measuring accuracy: depend on the thermopair precision.
3. cold junction temperature useful range :-30 ℃～+ 120 ℃, 0.5 ℃ of precision.
4. power supply: DC5V, 200mA
● major function:
1, measures and store 40 electrolytic bath temperature or more electrolyzers, and have the power down memory function;
2, transmit the measurement temperature function by the CAN bus network to electrolyzer slot control machine and monitoring equipment;
3, optionally transmit take off data to monitoring equipment by the RS232 mouth;
4, network type electrolytic tank electrolysis electrolyte temperature measuring device interface program function utilizes the operation to the micro-chip inside and outside, finishes the function that specification sheets comprises;
5, the monitoring equipment watchdog routine has been developed based on the above operating system of Windows98, has been integrated monitoring and OO 32 aluminium cell Intelligent Fuzzy Control system monitoring softwares of diagnosing of groove condition with Visual Basic 5.0, receive the temperature information that network type electrolytic tank electrolysis electrolyte temperature measuring device utilizes CAN bus or RS232 serial ports to transmit, temperature data inserts database automatically, automatically generate the electrolytic process parameter form, and on monitoring interface, show.
Claims (4)
1, a kind of network type electrolytic tank electrolysis electrolyte temperature measuring device, it is characterized in that the complete embedded system that it is made up of nine unicircuit, wherein the micro-chip with the band A/D converter is its core, all the other eight unicircuit are coupled respectively, wherein: the conversion buffered module of A/D adopts isolates chopper amplifier and peripheral circuit formation isolation buffer module thereof, input signal is isolated, guarantee by isolation signals undistorted, its function is to isolate the electromotive force that thermopair produces, avoid misquoting of big voltage to destroy into CPU is produced, input voltage is carried out filtering, guarantee the accurate of A/D conversion, its output is connected with the analog input mouth of micro-chip by programmed settings; Keysheet module adopts a 4*4 keyboard to constitute, and its function provides the input tool of data input and menu option, can form the 4*4 key by 8 mouths of micro-chip; It is that row and column autoscan chip constitutes liquid crystal control module that liquid-crystal display utilizes the liquid crystal control unit, and its function provides the instrument of outputs such as data and information, can drive the 128*64 lattice lcd module of standard by 8 mouths of micro-chip; The CAN communication module adopts CAN interface controller and peripheral circuit to constitute, and its function provides the passage of data transmission, links to each other with micro-chip by data bus of micro-chip, by the read-write operation CAN bus communication to the data field; System clock adopts real-time timepiece chip to add peripheral circuit to constitute, and its function provides network type electrolytic tank electrolysis electrolyte temperature measuring device required real-time clock, so that the determination data storage, the concrete time of renewal is by being connected of SPI interface and micro-chip; Cold junction temperature measure to adopt a line thermometric device to form, and its function is that thermocouple temperature measurement needs cold junction temperature could calculate the measurement temperature, and the cold junction temperature measurement module provides cold junction temperature, by being connected of ONE-WIRE interface and micro-chip; The RS232 module by to micro-chip with the RS232 mouth carry out level conversion and obtain, its function provides another passage of data transmission, mainly can provide directly transmission of computer; Power management module adopts power management chip to form, its function provide to temperature measuring equipment be with that the Ni battery boosts, warning such as overcurrent, charging, voltage are low, directly be connected with microcontroller power supply.
2, according to the described network type electrolytic tank electrolysis of claim 1 electrolyte temperature measuring device, what it is characterized in that the conversion buffered module of wherein said A/D selects for use is 24 ∑s-△ type A/D converter.
3, according to the described network type electrolytic tank electrolysis of claim 1 electrolyte temperature measuring device, what it is characterized in that the thermopair access port of wherein said cold junction temperature measurement module connects is nickel chromium triangle-nisiloy K type thermopair.
4,, it is characterized in that wherein said RS232 serial ports and CAN EBI (6) are same interface, by the pin number different conversions that realize between the transmission path according to the described network type electrolytic tank electrolysis of claim 1 electrolyte temperature measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420008499 CN2688727Y (en) | 2004-03-16 | 2004-03-16 | Electrolyte temperature measuring device of network electrolyzing cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420008499 CN2688727Y (en) | 2004-03-16 | 2004-03-16 | Electrolyte temperature measuring device of network electrolyzing cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2688727Y true CN2688727Y (en) | 2005-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420008499 Expired - Fee Related CN2688727Y (en) | 2004-03-16 | 2004-03-16 | Electrolyte temperature measuring device of network electrolyzing cell |
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| Country | Link |
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| CN (1) | CN2688727Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748793A (en) * | 2015-03-19 | 2015-07-01 | 中南大学 | Real-time combined measurement device and method for temperature and flow speed of aluminum electrolytic cell melt |
| CN111910217A (en) * | 2020-08-24 | 2020-11-10 | 常州机电职业技术学院 | High-efficiency intelligent control system for aluminum electrolysis production |
-
2004
- 2004-03-16 CN CN 200420008499 patent/CN2688727Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748793A (en) * | 2015-03-19 | 2015-07-01 | 中南大学 | Real-time combined measurement device and method for temperature and flow speed of aluminum electrolytic cell melt |
| CN104748793B (en) * | 2015-03-19 | 2017-03-08 | 中南大学 | Aluminum electrolysis cell melt temperature and flow velocity combined in real time measurement apparatus and its measuring method |
| CN111910217A (en) * | 2020-08-24 | 2020-11-10 | 常州机电职业技术学院 | High-efficiency intelligent control system for aluminum electrolysis production |
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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: CHINESE ALUMINIUM CO., LTD.; PATENTEE Free format text: FORMER OWNER: LANZHOU ALUMINIUM INDUSTRY CO., LTD.; PATENTEE Effective date: 20071228 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071228 Address after: No. 62 North Street, Beijing, Xizhimen: 100082 Co-patentee after: Changsha Xiang Xiang Technology Development Co., Ltd. Patentee after: Aluminum Corporation of China Limited Address before: 375, Shandan Road, Xigu District, Lanzhou, Gansu, zip code: 730060 Co-patentee before: Changsha Xiang Xiang Technology Development Co., Ltd. Patentee before: Limited by Share Ltd of Lanzhou aluminum industry |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050330 Termination date: 20130316 |