CN116147800A - Real-time monitoring system for temperature of aluminum electrolysis cell shell - Google Patents
Real-time monitoring system for temperature of aluminum electrolysis cell shell Download PDFInfo
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- CN116147800A CN116147800A CN202310195001.5A CN202310195001A CN116147800A CN 116147800 A CN116147800 A CN 116147800A CN 202310195001 A CN202310195001 A CN 202310195001A CN 116147800 A CN116147800 A CN 116147800A
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 49
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 41
- 238000012544 monitoring process Methods 0.000 title claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims abstract description 52
- 238000004458 analytical method Methods 0.000 claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 17
- 230000008054 signal transmission Effects 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 9
- 239000013307 optical fiber Substances 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000007639 printing Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 238000009529 body temperature measurement Methods 0.000 abstract description 19
- 238000004148 unit process Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 230000005856 abnormality Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
- G01K11/3206—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
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- G06F16/2474—Sequence data queries, e.g. querying versioned data
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- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
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Abstract
The invention discloses a real-time monitoring system for the temperature of an aluminum electrolysis cell shell, which comprises a temperature acquisition subsystem, a control subsystem and a client terminal system, wherein the temperature acquisition subsystem comprises a Bragg fiber grating temperature sensor, an optical signal transmission unit and an optical signal analysis unit, the Bragg fiber grating temperature sensor is packaged by adopting a heat conducting material with insulation, pressure resistance and high temperature resistance and then is arranged at each temperature monitoring point of the aluminum electrolysis cell shell, an acquired temperature signal is transmitted to the optical signal analysis unit through the optical signal transmission unit in the form of an optical signal, and the optical signal analysis unit processes the received optical signal into a digital signal which can be transmitted by a channel; the control subsystem comprises an upper computer which receives, stores and displays temperature information; the client subsystem may obtain temperature information in the control subsystem; solves the problems of strong electromagnetic interference, low automation degree, high labor intensity and the like in the aluminum electrolysis cell shell temperature measurement in the prior art.
Description
Technical Field
The invention belongs to the technical field of aluminum electrolysis, and particularly relates to a real-time monitoring system for the temperature of a shell of an aluminum electrolysis cell.
Background
The electrolytic tank is used as a reactor for aluminum smelting, and is used for containing molten aluminum liquid and electrolyte, is also an aluminum electrolysis reaction place, is core equipment for aluminum smelting, and has the average direct current power consumption of 13000-15000 kWh/t-Al. Aluminum electrolysis is a complex multi-factor multi-parameter control comprehensive reaction process, and is easily influenced by various factors in the production process; if the control treatment of the parameters is not good, the energy balance of the electrolytic tank is possibly damaged, and then the phenomenon of the electrolytic tank appears; the temperature of the cell shell is the most visual representation of the energy balance and the energy distribution in the aluminum electrolysis cell, the real-time monitoring of the temperature of the cell shell of the aluminum electrolysis cell can provide a judging basis for the diagnosis of the condition of the cell of the aluminum electrolysis cell, can prevent the cold and hot cell and other symptoms of the cell, ensures the safe production environment, and can count the energy loss of the cell according to the temperature of the cell shell so as to further develop energy-saving research.
In recent years, with the development of temperature measurement technology, particularly high temperature measurement technology, a non-contact high temperature measurement method has become one of the main means of temperature measurement in ultra-high temperature environments. However, in the industrial production process of aluminum electrolysis, the temperature of the aluminum electrolysis cell shell is monitored in real time, and the non-contact temperature measurement technology has the defects of immature theoretical basis, high temperature measurement environment requirement, high construction cost, low automation degree and the like. At present, the aluminum electrolysis cell is measured manually by a handheld instrument, and as the number of temperature acquisition points related to the aluminum electrolysis cell is thousands, the labor intensity is high and dangerous, and the aluminum electrolysis cell is in a high-temperature environment and is easy to suffer from the problem of strong electromagnetic interference on a working site.
Disclosure of Invention
The invention aims to provide a real-time monitoring system for the temperature of an aluminum electrolysis cell shell, which mainly uses a Bragg fiber grating temperature sensor 11 with strong electromagnetic interference resistance as real-time temperature monitoring hardware, and utilizes information communication and other technologies to realize functions of real-time temperature measurement, analysis, storage, display, calling and the like, and does not need manual field temperature measurement or manual recording and uploading of data, so that the temperature measurement precision can be improved, the instantaneity and accuracy of data acquired by a client terminal system 3 can be improved, and the problems of strong electromagnetic interference, low automation degree, high labor intensity and the like in the prior art of aluminum electrolysis cell shell temperature measurement are solved.
The invention provides a real-time monitoring system for the temperature of an aluminum electrolysis cell shell, which comprises a temperature acquisition subsystem (1), a control subsystem (2) and a client terminal system (3), wherein the temperature acquisition subsystem (1) comprises a Bragg fiber grating temperature sensor (11), an optical signal transmission unit (12) and an optical signal analysis unit (13), the Bragg fiber grating temperature sensor (11) is packaged by adopting a heat conducting material with insulation, pressure resistance and high temperature resistance and then is arranged at each temperature monitoring point of the aluminum electrolysis cell shell, and an acquired temperature signal is transmitted to the optical signal analysis unit (13) in the form of an optical signal through the optical signal transmission unit (12), and the optical signal analysis unit (13) processes the received optical signal into a digital signal which can be transmitted by a channel; the control subsystem (2) comprises an upper computer (21), and the upper computer (21) receives, stores and displays temperature information acquired by the temperature acquisition subsystem (1); the client subsystem (3) may obtain temperature information in the control subsystem (2).
As a preferred scheme of the application, the control subsystem (2) comprises a cloud server (4), the upper computer (21) uploads the received temperature information to the cloud server (4) through a TCP protocol so as to store the backup, and the client subsystem (3) can acquire the temperature information of the backup in the cloud server (4).
As a preferable scheme of the application, the control subsystem (2) comprises an alarm module (22), early warning response parameter setting can be carried out in the upper computer (21), and the alarm module (22) sends out an alarm signal when an early warning response value is reached.
As a preferable scheme of the application, the optical signal analysis unit (13) is an optical fiber sensing analyzer, which can convert an optical signal measured by the Bragg fiber grating sensor into a digital signal and transmit the converted real-time temperature data to the upper computer (21) through a communication protocol.
As a preferred solution of the present application, the optical signal transmission unit (12) includes one or more of an optical branching box, an optical fiber jumper, a coupler, a junction box and an optical switch, which are required to ensure normal transmission of an optical signal.
As a preferred scheme of the application, the client subsystem (3) comprises an enterprise department supervision terminal (31), a functional department supervision terminal (32) and a user terminal (33).
As a preferred scheme of the application, the temperature monitoring points of the aluminum electrolysis cell shell comprise: the heat dissipation holes, the cathode steel bars, the aluminum outlet end, the flue opening and the tank bottom steel plate are positioned at the upper layer and the lower layer of the aluminum electrolysis tank shell.
As a preferable scheme of the application, the temperature acquisition subsystem (1) and the control subsystem (2) are communicated with each other by adopting a ModbusTCP communication protocol.
As a preferable scheme of the application, the upper computer (21) is an industrial personal computer and also has the functions of user management, parameter setting, history inquiry and report printing.
As a preferred embodiment of the present application, the heat conducting material with insulation, pressure resistance and high temperature resistance is ceramic.
Compared with the prior art, the application has the advantages that: the monitoring system forms a temperature automatic acquisition system through the temperature acquisition subsystem 1, the control subsystem 2 and the client terminal system 3, specifically, the Bragg fiber grating temperature sensor 11 with strong electromagnetic interference resistance is mainly utilized as real-time temperature monitoring hardware, and the functions of real-time temperature measurement, analysis, storage, display, calling and the like are realized by utilizing the technologies of information communication and the like, manual on-site temperature measurement is not needed, manual recording and uploading of data are also not needed, so that the temperature measurement precision can be improved, the instantaneity and the accuracy of data acquired by the client terminal system 3 can be improved, the problems of strong electromagnetic interference, low automation degree, high labor intensity and the like in the prior art in the aluminum electrolysis cell case temperature measurement are solved, in addition, the monitoring system can display the real-time condition of the cell case temperature in the form of curves or tables and the like through the control subsystem 2, visual observation of staff is facilitated, in addition, historical data can be queried, the use difficulty of staff is reduced, and the high efficiency and convenience of the system are also increased.
Drawings
FIG. 1 is a control schematic diagram of a real-time monitoring system for the temperature of a housing of an aluminum electrolysis cell according to an embodiment of the invention.
Fig. 2 is a functional block diagram of an upper computer according to an embodiment of the present invention.
Reference numerals
The system comprises a temperature acquisition subsystem 1, a Bragg fiber grating temperature sensor 11, an optical signal transmission unit 12, an optical signal analysis unit 13, a control subsystem 2, an upper computer 21, an alarm module 22, a client subsystem 3, an enterprise department supervision terminal 31, a functional department supervision terminal 32, a user terminal 33 and a cloud server 4.
Detailed Description
The invention will now be described in further detail with reference to the following detailed description and with reference to the accompanying drawings, it being emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention and its application.
Example 1:
the embodiment provides a real-time monitoring system for the temperature of an aluminum electrolysis cell shell, as shown in fig. 1, the monitoring system comprises a temperature acquisition subsystem 1, a control subsystem 2 and a client subsystem 3, wherein the temperature acquisition subsystem 1 comprises a bragg fiber grating temperature sensor 11, an optical signal transmission unit 12 and an optical signal analysis unit 13, the bragg fiber grating temperature sensor 11 is packaged by adopting a heat conducting ceramic material with insulation, pressure resistance and high temperature resistance, is arranged at each temperature monitoring point of the aluminum electrolysis cell shell, and transmits an acquired temperature signal to the optical signal analysis unit 13 through the optical signal transmission unit 12, the optical signal analysis unit 13 processes the received optical signal into a digital signal which can be transmitted by a channel, in particular, in the embodiment, the optical signal analysis unit 13 is an existing optical fiber sensing analyzer, the optical signal measured by the bragg fiber grating sensor can be converted into the digital signal, and the converted real-time temperature data are transmitted to the control subsystem 2 through a ModbusTCP standard communication protocol, in addition, because the bragg fiber grating temperature sensor 11 has the advantages of no interference, no volume, no electromagnetic interference due to the fact that the optical fiber grating is light in weight, and is not influenced by the high-temperature requirement of the electromagnetic field electromagnetic sensor, and the electromagnetic sensor is not only mounted as a high-strength-temperature requirement of the monitoring scheme is satisfied; the control subsystem 2 comprises an upper computer 21, the upper computer 21 receives, stores and displays the temperature information acquired by the temperature acquisition subsystem 1, in this embodiment, the control subsystem 2 can be arranged in a site or a remote centralized control room, and is determined according to actual needs, the control subsystem 2 is preferably arranged in the site, and the upper computer 21 in the control subsystem 2 can display the received temperature information, and can display the temperature information in a curve, table or bar graph display mode, so that the operator can conveniently view the temperature information; the client subsystem 3 may acquire temperature information in the control subsystem 2 according to needs, in this embodiment, the client subsystem 3 includes an enterprise each department supervision terminal 31, a functional department supervision terminal 32, and a user terminal 33, where the enterprise each department supervision terminal 31 may include a department that needs to use the temperature data in the enterprise, for example, a research and development department, and the functional department supervision terminal 32 is preferably a total control terminal, which not only has the maximum data acquisition authority, but also can modify and device parameters in the upper computer 21, and the user terminal 33 is mainly a mobile terminal of a worker performing temperature monitoring, through which the worker can timely acquire real-time temperature data and make corresponding emergency measures according to needs.
Preferably, the authority of different terminals to acquire the temperature information may be different.
In the present embodiment, the optical signal transmission unit 12 includes one or more of an optical branching box, an optical fiber jumper, a coupler, a junction box, and an optical switch, which are required to ensure normal transmission of an optical signal.
In the embodiment, each temperature monitoring point of the aluminum electrolysis cell shell is preferably a heat dissipation hole, a cathode steel bar, an aluminum outlet end, a flue opening, a tank bottom steel plate and the like which are positioned on the upper layer and the lower layer of the aluminum electrolysis cell shell.
In this embodiment, in order to facilitate the use of the staff, the preferred control subsystem 2 includes an alarm module 22, and the alarm module 22 sends an alarm signal when the alarm response value is reached to improve the temperature monitoring efficiency by setting the alarm response parameters in the upper computer 21.
In this embodiment, the host computer 21 is preferably an industrial personal computer, which also has functions of user management, parameter setting, history inquiry, report printing, etc., as shown in fig. 2, the user management function can set client information of a client, client access authority, client status, etc., the parameter setting function can set parameters such as early warning response parameters, scanning frequency, data uploading times, etc., the specific type of the parameters can be determined according to actual needs, the history inquiry function can inquire history data according to preset conditions, such as time logic inquiry, position fixed point inquiry or inquiry after grouping monitoring points, and the report printing function can be utilized to print a required report.
The specific use principle comprises: before use, information such as user management and parameter setting is preferably written into the upper computer 21 through a function supervision department terminal, when the intelligent terminal is used, temperature signals of all temperature monitoring points are sensed in real time by using the Bragg fiber bragg grating temperature sensors 11 arranged at all the temperature monitoring points, the sensed temperature signals are transmitted to the optical signal analysis unit 13 through the optical signal transmission unit 12 in the form of optical signals, the optical signal analysis unit 13 processes the received optical signals into digital signals capable of being transmitted through channels, the converted real-time temperature data are transmitted to the upper computer 21 through a TCP communication protocol, the upper computer 21 stores and displays the temperature data in a specific form, and the client terminal system 3 can acquire the real-time temperature data from the upper computer 21 for analysis according to actual needs.
In summary, according to the monitoring system of the embodiment, an automatic temperature acquisition system is formed by the temperature acquisition subsystem 1, the control subsystem 2 and the client terminal system 3, specifically, the bragg fiber grating temperature sensor 11 with strong electromagnetic interference resistance is mainly utilized as real-time temperature monitoring hardware, and the functions of automatic real-time temperature measurement, analysis, storage, display, calling and the like are realized by utilizing the technologies of information communication and the like, manual on-site temperature measurement is not needed, and manual recording and uploading of data are not needed, so that the temperature measurement precision can be improved, the instantaneity and accuracy of data acquired by the client terminal system 3 can be improved, the problems of strong electromagnetic interference, low automation degree, high labor intensity and the like in the prior art in the aluminum electrolysis cell case temperature measurement are solved, in addition, the monitoring system can display the real-time condition of the cell case temperature in a curve or table form and the like through the control subsystem 2, so that a worker can conveniently and intuitively check the historical data, print reports and real-time early warning can be queried, the use difficulty of the worker is reduced, and the efficiency and convenience of the system use are also increased.
Example 2:
compared with embodiment 1, the difference between this embodiment is that, in order to ensure the security of the system usage and avoid data loss, the control subsystem 2 preferably includes the cloud server 4, the host computer 21 uploads the received temperature information to the cloud server 4 through the TCP protocol to save the backup, and the client subsystem 3 may obtain the temperature information backed up in the cloud server 4.
In this embodiment, by adding the cloud server 4, the collected temperature information can be backed up and saved, so that the problem of data loss caused by the abnormality of the upper computer 21 is avoided.
The foregoing is merely exemplary embodiments of the present invention, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications can be made by those skilled in the art without departing from the scope of the invention, which is also to be considered as the scope of the invention, and which does not affect the effect of the invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (10)
1. The real-time monitoring system for the temperature of the aluminum electrolysis cell shell is characterized by comprising a temperature acquisition subsystem (1), a control subsystem (2) and a client terminal system (3), wherein the temperature acquisition subsystem (1) comprises a Bragg fiber grating temperature sensor (11), an optical signal transmission unit (12) and an optical signal analysis unit (13), the Bragg fiber grating temperature sensor (11) is packaged by adopting a heat conducting material with insulation, pressure resistance and high temperature resistance, and is arranged at each temperature monitoring point of the aluminum electrolysis cell shell, and the acquired temperature signals are transmitted to the optical signal analysis unit (13) in the form of optical signals through the optical signal transmission unit (12), and the optical signal analysis unit (13) processes the received optical signals into digital signals which can be transmitted by channels; the control subsystem (2) comprises an upper computer (21), and the upper computer (21) receives, stores and displays temperature information acquired by the temperature acquisition subsystem (1); the client subsystem (3) may obtain temperature information in the control subsystem (2).
2. The real-time monitoring system for the temperature of the aluminum electrolysis cell shell according to claim 1, wherein the control subsystem (2) comprises a cloud server (4), the upper computer (21) uploads the received temperature information to the cloud server (4) through a TCP protocol to save backup, and the client subsystem (3) can acquire the temperature information backed up in the cloud server (4).
3. The real-time monitoring system for the temperature of the aluminum electrolysis cell shell according to claim 1, wherein the control subsystem (2) comprises an alarm module (22), early warning response parameters can be set in the upper computer (21), and the alarm module (22) sends out an alarm signal when the early warning response value is reached.
4. The real-time monitoring system for the temperature of the aluminum electrolysis cell shell according to claim 1, wherein the optical signal analysis unit (13) is an optical fiber sensing analyzer, can convert an optical signal measured by a fiber Bragg grating sensor into a digital signal, and transmits the converted real-time temperature data to the upper computer (21) through a communication protocol.
5. The aluminum electrolysis cell housing temperature real-time monitoring system according to claim 1, wherein the optical signal transmission unit (12) comprises one or more of an optical branching box, an optical fiber jumper, a coupler, a junction box and an optical switch required for ensuring normal transmission of an optical signal.
6. The aluminium electrolysis cell housing temperature real-time monitoring system according to claim 1, wherein the customer subsystem (3) comprises an enterprise each department supervision terminal (31), a functional department supervision terminal (32) and a user terminal (33).
7. The aluminum reduction cell housing temperature real-time monitoring system according to claim 1, wherein the temperature monitoring points of the aluminum reduction cell housing comprise: the heat dissipation holes, the cathode steel bars, the aluminum outlet end, the flue opening and the tank bottom steel plate are positioned at the upper layer and the lower layer of the aluminum electrolysis tank shell.
8. The real-time monitoring system for the temperature of the aluminum electrolysis cell shell according to claim 1, wherein the temperature acquisition subsystem (1) and the control subsystem (2) are communicated with each other by adopting a modbusTCP communication protocol.
9. The aluminum electrolysis cell shell temperature real-time monitoring system according to claim 1, wherein the upper computer (21) is an industrial personal computer and further has the functions of user management, parameter setting, history inquiry and report printing.
10. The real-time monitoring system for the temperature of a shell of an aluminum electrolysis cell according to claim 1, wherein the heat conducting material with insulation, pressure resistance and high temperature resistance is ceramic.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310195001.5A CN116147800A (en) | 2023-03-02 | 2023-03-02 | Real-time monitoring system for temperature of aluminum electrolysis cell shell |
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| CN202310195001.5A CN116147800A (en) | 2023-03-02 | 2023-03-02 | Real-time monitoring system for temperature of aluminum electrolysis cell shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117469192A (en) * | 2023-12-28 | 2024-01-30 | 苏州元脑智能科技有限公司 | Fan speed regulation control system, method, equipment and medium based on optical signal transmission |
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2023
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117469192A (en) * | 2023-12-28 | 2024-01-30 | 苏州元脑智能科技有限公司 | Fan speed regulation control system, method, equipment and medium based on optical signal transmission |
| CN117469192B (en) * | 2023-12-28 | 2024-03-01 | 苏州元脑智能科技有限公司 | Fan speed regulation control system, method, equipment and medium based on optical signal transmission |
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