CN201241186Y - Electrolytic tank anode bus current distribution measuring instrument - Google Patents
Electrolytic tank anode bus current distribution measuring instrument Download PDFInfo
- Publication number
- CN201241186Y CN201241186Y CNU2008201099014U CN200820109901U CN201241186Y CN 201241186 Y CN201241186 Y CN 201241186Y CN U2008201099014 U CNU2008201099014 U CN U2008201099014U CN 200820109901 U CN200820109901 U CN 200820109901U CN 201241186 Y CN201241186 Y CN 201241186Y
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- microprocessor
- electrolytic cell
- bus current
- cell bus
- analog
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- 238000009826 distribution Methods 0.000 title claims abstract description 28
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims description 19
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000005856 abnormality Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The utility model discloses an Instrument for measuring the current distribution of an electrobath positive bar, which comprises a measurement head, an analog-to-digital converter, a microprocessor, a display and a clock, wherein, the measurement head is externally connected with a current transformator to transform the current of the positive bar to voltage signals of a microvolt level or current signals of milliampere level; the input end of the analog-to-digital converter is connected with an output end of the measurement head to filter and amplify analog signals output by the measurement head, and analog and digital signals are transformed to digital signals; one input end of the microprocessor is connected with the output end of the clock so as to read the current time of the clock; the other end of the microprocessor is connected with the output end of the analog-to-digital converter so as to process signals output by the analog-to-digital converter into styles expected by users; the microprocessor presets the equipment number of the electrobath and the number of the positive bar; the input end of the display is connected with the output end of the microprocessor to display the measurement results and the time of the positive bar as well as the measurement information of the equipment number and the number of the positive bar. The instrument can be used for viewing measurement results on the site, so the instrument is convenient for counter measures during electrobath abnormality.
Description
Technical field
The utility model relates to the current measurement field, is a kind of anode electrolytic cell bus current distribution measuring apparatus specifically.
Background technology
In metallurgy industry, electrolyzer is to carry out electrolysis, and metal oxide (as aluminum oxide) is reduced to the production unit of pure metal (as aluminium), and its operational situation is directly connected to every productive capacity such as output, current efficiency and the energy consumption of metal.By measuring the current value on anode electrolytic cell bus, the cathode steel bar, can reflect the current distributions of whole electrolyzer, so that in time find potential problems and take measures, guarantee to produce and carry out smoothly.
At present, the mode of anode electrolytic cell bus current distribution measuring is: on each positive bar current transformer is installed, and the electric current of each positive bar is measured in real time, upload on the host computer by communication network and show.Though can provide the current distributions of anode electrolytic cell bus in real time, there is following shortcoming in this method:
The one, the measuring result that can't directly check certain positive bar at the scene if operation irregularity appears in electrolyzer, is not easy in time take counter-measure.
The 2nd, need be in data such as the device numbering of manual typing electrolyzer of later stage, positive bar numbering, Measuring Time, measuring results, its working efficiency is not high, and labour intensity is bigger, and easily causes human error.
The 3rd, need to build communication network, not only increase investment, and because the magnetic field of measurement environment is very strong, cause the communication data mistake easily or lose;
The 4th, facility investment is very big, and the current transformer of each positive bar can not move, and single current mutual inductor cost is more than ten thousand yuan, and the whole test system investment is huge.
Thus, measuring method and measuring apparatus that existing anode electrolytic cell bus current distributes are unfavorable for the application of electrolysis business enterprise expand, in view of this, need a kind of more advanced anode electrolytic cell bus current distribution measuring apparatus of design.
The utility model content
Defective at prior art, the utility model provides a kind of anode electrolytic cell bus current distribution measuring apparatus, can measure the positive bar electric current in real time, and show device numbering, positive bar numbering and the metrical informations such as Measuring Time, measuring result of electrolyzer simultaneously, thereby be convenient to when electric tank working is unusual, in time take counter-measure.
For solving above technical problem, the anode electrolytic cell bus current distribution measuring apparatus that the utility model provides, its technical scheme is: comprise measuring head, analog to digital converter, microprocessor, indicating meter, clock; Described measuring head external impressed current mutual inductor is so that be converted to the millivolt magnitude voltage signals that is suitable for detecting or milliampere level current signal with the anode electrolytic cell bus current; The input terminus of described analog to digital converter connects the output terminal of described measuring head, so that simulating signal filtering, amplification, digital-to-analog conversion that described measuring head is exported are numerary signal; One input terminus of described microprocessor connects the output terminal of described clock, so that read the current time of described clock; Another input terminus of described microprocessor connects the output terminal of described analog to digital converter, so that the output signal of described analog to digital converter is treated to the form of user expectation; Described microprocessor is device numbering, the positive bar numbering of default electrolyzer also; The input terminus of described indicating meter connects the output terminal of described microprocessor, so that show anode electrolytic cell bus current measuring result, time and the device numbering of described microprocessor output, the metrical information of positive bar numbering.
Preferably, also comprise storer, be connected by the I/O interface between described storer and the described microprocessor, so that the metrical information of anode electrolytic cell bus current measuring result, time and device numbering, positive bar numbering is gone in described microprocessor reading and writing.
Preferably, also comprise function button, the output terminal of described function button is connected with the another input terminus of described microprocessor, so that open measurement function, preserve current metrical information and consult historical metrical information.
Preferably, also comprise USB communication interface, be connected by the I/O interface between described USB communication interface and the described microprocessor, so that download or upload metrical information between described microprocessor and the host computer in order to be connected with host computer.
Preferably, also comprise battery and power switcher, the output terminal of described battery and described USB communication interface connects an input terminus of described power switcher respectively, and the output terminal of described power switcher is connected with the input terminus of described microprocessor.
Preferably, the built-in or external overload alarm device of described microprocessor is so that report to the police when anode electrolytic cell bus current measuring result surpasses the higher limit of user's setting.
Preferably, described analog to digital converter is the gain programmable analog to digital converter.
Preferably, described indicating meter is a liquid-crystal display.
Preferably, also comprise light detector, the output terminal of described light detector is connected with an input terminus again of described microprocessor, so that control the open and close of described LCD backlight light source.
Preferably, described microprocessor is an embedded microprocessor
Compared with prior art, the anode electrolytic cell bus current distribution measuring apparatus that the utility model provides, not only can measure the positive bar electric current in real time, also can be simultaneously device numbering, positive bar numbering and the metrical informations such as Measuring Time, measuring result of electrolyzer be presented on the indicating meter; Thus, operator can directly check the measuring result of certain positive bar at the scene, and when electric tank working was unusual, operator can take counter-measure immediately, guarantee carrying out smoothly of production.
In addition, also can avoid the trouble of artificial recording unit numbering, Measuring Time, take off data and reading of data, reduce the human error that may occur in record and the typing process, save labor force's expenditure, reduce labor intensity of operating personnel, increase work efficiency; Need not to build communication network, can reduce investment outlay, it is not influenced by electromagnetic environment, can avoid error in data or loses; Owing to the current transformer that measuring head is external is removable, need not on each positive bar, current transformer to be installed, thereby can alleviate the measurement cost.
Description of drawings
Fig. 1 is the block diagram of the utility model anode electrolytic cell bus current distribution measuring apparatus basic model;
Fig. 2 is the follow-on block diagram of the utility model anode electrolytic cell bus current distribution measuring apparatus.
Embodiment
Basic design of the present utility model is to comprise measuring head, analog to digital converter, microprocessor, indicating meter, clock; Measuring head external impressed current mutual inductor is converted to the anode electrolytic cell bus current millivolt magnitude voltage signals or milliampere level current signal that is suitable for detecting; Analog to digital converter is a numerary signal with simulating signal filtering, amplification, the digital-to-analog conversion of measuring head output; The device numbering of the default electrolyzer of microprocessor, positive bar numbering, the current time of reading clock, and the output signal of described analog to digital converter is treated to the form of user expectation; Indicating meter can show metrical informations such as measuring result, time and device numbering, positive bar numbering in real time.
Describe below in conjunction with embodiment and accompanying drawing.
Please refer to Fig. 1, this figure is the block diagram of the utility model anode electrolytic cell bus current distribution measuring apparatus basic model.Separate groove positive bar distribution of current survey meter (hereinafter to be referred as survey meter) in this embodiment, comprising: comprise measuring head 1, analog to digital converter 2, microprocessor 3, indicating meter 7, clock 4, wherein:
Measuring head 1 external impressed current mutual inductor is so that be converted to the millivolt magnitude voltage signals that is suitable for detecting or milliampere level current signal with the anode electrolytic cell bus current; The input terminus of analog to digital converter 2 connects the output terminal of measuring head 1, so that simulating signal filtering, amplification, digital-to-analog conversion that measuring head is exported are numerary signal; Microprocessor 3 has a plurality of input terminuss and a plurality of output terminal, one input end connects the output terminal of clock 4, so that read the current time of clock, the output terminal of its another input terminus connection mode number converter 2 is so that be treated to the output signal of analog to digital converter 2 form of user expectation; In addition, microprocessor also number by device numbering, the positive bar of default electrolyzer; The input terminus of indicating meter 7 connects the output terminal of microprocessor 3, so that show the metrical information of anode electrolytic cell bus current measuring result, time and device numbering, the positive bar numbering etc. of microprocessor 3 outputs.
In the present embodiment, described measuring head 1 external impressed current mutual inductor is as the electrolyzer bus electric current special DC mutual inductor of Baoding General Electric Company, Ltd. production; Described analog to digital converter 2, microprocessor 3, clock 4 all can be integrated chip; Especially, analog to digital converter 2 is the gain programmable analog to digital converter, as AD7715 pattern number converter; Microprocessor 3 is an embedded microprocessor, as ATmega64 type microprocessor; Clock can be DS1307 type clock chip; Indicating meter 7 is preferably liquid-crystal display.
During the work of this survey meter, by the current transformer on the external measuring head 1 with proportional millivolt magnitude voltage signals or milliampere level current signal of being reduced into of positive bar electric current, so that detect; Analog to digital converter 2 is finished filtering, amplification and the analog to digital conversion of signal, is delivered to microprocessor 3 then and obtains actual current; Microprocessor 3 reads the current time of clock 4 simultaneously, together is delivered to indicating meter 7 together with the measurement results of weak current and shows.According to measuring needs, also in microprocessor 3, preestablish device numbering, the positive bar numbering of tested electrolyzer, one is coexisted show in the indicating meter 7, so that simplify the operation.
Thus, survey meter of the present utility model not only can be measured the positive bar electric current in real time, also can be simultaneously device numbering, positive bar numbering and the metrical informations such as Measuring Time, measuring result of electrolyzer be presented on the indicating meter; Therefore, operator can directly check the measuring result of certain positive bar at the scene, and when electric tank working was unusual, operator can take counter-measure immediately, guarantee carrying out smoothly of production.
In addition, also can avoid the trouble of artificial recording unit numbering, Measuring Time, take off data and reading of data, reduce the human error that may occur in record and the typing process, save labor force's expenditure, reduce labor intensity of operating personnel, increase work efficiency; Need not to build communication network, can reduce investment outlay, it is not influenced by electromagnetic environment, can avoid error in data or loses; Owing to the current transformer that measuring head is external is removable, need not on each positive bar, current transformer to be installed, thereby can alleviate the measurement cost.
Further, because every survey record comprises information such as electrolytic cell equipment numbering number, positive bar numbering, measuring result, Measuring Time, more help historical distribution of current information and electrolyzer current distributions constantly by the analysis software electrolyzer.
The utility model also can further improve, and is summarized as follows:
Please refer to Fig. 2, this figure is the follow-on block diagram of the utility model anode electrolytic cell bus current distribution measuring apparatus.This there is shown following whole improvement, but according to actual needs, also can select the one or more combination embodiment.
One of improvement of present embodiment: storer 8 also is set in the survey meter, preferably, is non-volatile memory, as FM24C256 type storer, it still can preserve data under power-down conditions fully for a long time.Be connected by the I/O interface between this described storer 8 and the described microprocessor 3, so that microprocessor 3 is gone into metrical informations such as anode electrolytic cell bus current measuring result, time and device numbering, positive bar numbering from storer 8 reading and writing.
Corresponding therewith, function button 5 further is set, so that open measurement function, preserve current metrical information and consult historical metrical information in the survey meter.The output terminal of described function button 5 is connected with the input terminus of microprocessor 3, and the output terminal of storer 8 is connected with an input terminus of microprocessor 3, and the input terminus of storer 8 also is connected with an output terminal of microprocessor 3.Thus, by microprocessor 3, can preserve or read in the data in the storer 8 easily; And according to measurement requirement, operator are operating function button 5 at any time, consults historical metrical information at any time.
Two of the improvement of present embodiment: survey meter also is provided with the USB communication interface 11 that is connected in order to host computer (figure does not show), be connected by the I/O interface between this USB communication interface and the microprocessor 3, so that download or upload metrical information between microprocessor 3 and the host computer.
Described USB communication interface 11 can be integrated chip, as USB RS 232 bridging chip.As shown in Figure 2, the output terminal of USB communication interface 11 is connected with the input terminus of microprocessor 3, and the input terminus of USB communication interface 1 is connected with the output terminal of microprocessor 3.The effect that USB communication interface 11 is set is, can survey meter be connected with host computer by the USB interface of standard, downloads and upload operation so that carry out data; Further, can also realize the charged hot plug between survey meter and the host computer, conveniently use and operate.
When the needs data upload, by the miniUSB wire survey meter is connected with the USB interface of host computer, survey meter carries out the task upload operation by host computer then automatically by USB interface power supply and start working, with all data transmission in host computer.
Three of the improvement of present embodiment: comprise that also battery 9 and power supply switch core device 10, the output terminal of power switcher 10 is connected with the input terminus of microprocessor 3, the output terminal of USB communication interface 11 is connected with an input terminus of power switcher 10, and the output terminal of battery 9 is connected with another input terminus of power switcher.The employing scheme that supplies power with double circuit reaches handled easily and saves battery, prolongs the battery purpose in 9 work-ing lifes.
When survey meter does not connect host computer, by battery 9 power supplies; Otherwise when survey meter is connected on the host computer by standard USB communication cable, power switcher 10 automatically switches to USB confession electricity mode, cuts off being electrically connected of battery 9 and survey meter simultaneously, opens survey meter automatically.
Preferably, described power switcher 10 switches chip for power supply, as the TPS2111 power supply automatic switchover chip of American TI Company; Described battery 9 adopts 5～9V battery, as lithium cell etc.Thus, when normal the measurement, can adopt standard 5～9V powered battery, and when needs are communicated by letter with host computer, can power by USB interface automatically, thereby realize supplying power with double circuit.
Four of the improvement of present embodiment: also comprise light detector 6 in the survey meter, can be used for the situation of 7 liquid-crystal displays of indicating meter.The output terminal of described light detector 6 is connected with the input terminus of microprocessor 3.When microprocessor 3 detects extraneous light when strong by light detector 6, close the backlight electric power on the liquid-crystal display 7 automatically, reach purpose of power saving; Otherwise, when microprocessor 3 detects extraneous light when more weak by light detector, opening the backlight electric power on the liquid-crystal display 7 automatically, the handled easily personnel operate under darker environment.
Wherein, described light detector 6 can be the light detector chip, also can adopt the photovaristor of standard, does not repeat them here.
Five of the improvement of present embodiment: microprocessor 3 built-in or external overload alarm devices (figure does not show), so that when anode electrolytic cell bus current measuring result surpasses the higher limit of user's setting, report to the police.
The guard signal of described overload alarm device can be one of sound, light, vibration signal or arbitrary combination.Preferably, survey meter inside is provided with hummer and reports to the police, and the current value and the predefined current value upper limit that records is compared at every turn, prescribes a time limit above last when electric current, and hummer is reported to the police.
The above only is a preferred implementation of the present utility model, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, and protection domain of the present utility model should be as the criterion with claim institute restricted portion.For those skilled in the art, in not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1, a kind of anode electrolytic cell bus current distribution measuring apparatus is characterized in that: comprise measuring head, analog to digital converter, microprocessor, indicating meter, clock; Described measuring head external impressed current mutual inductor is so that be converted to the millivolt magnitude voltage signals that is suitable for detecting or milliampere level current signal with the anode electrolytic cell bus current; The input terminus of described analog to digital converter connects the output terminal of described measuring head, so that simulating signal filtering, amplification, digital-to-analog conversion that described measuring head is exported are numerary signal; One input terminus of described microprocessor connects the output terminal of described clock, so that read the current time of described clock; Another input terminus of described microprocessor connects the output terminal of described analog to digital converter, so that the output signal of described analog to digital converter is treated to the form of user expectation; Described microprocessor is device numbering, the positive bar numbering of default electrolyzer also; The input terminus of described indicating meter connects the output terminal of described microprocessor, so that show anode electrolytic cell bus current measuring result, time and the device numbering of described microprocessor output, the metrical information of positive bar numbering.
2, anode electrolytic cell bus current distribution measuring apparatus according to claim 1, it is characterized in that: also comprise storer, be connected by the I/O interface between described storer and the described microprocessor, so that the metrical information of anode electrolytic cell bus current measuring result, time and device numbering, positive bar numbering is gone in described microprocessor reading and writing.
3, anode electrolytic cell bus current distribution measuring apparatus according to claim 2, it is characterized in that: also comprise function button, the output terminal of described function button is connected with the another input terminus of described microprocessor, so that open measurement function, preserve current metrical information and consult historical metrical information.
4, anode electrolytic cell bus current distribution measuring apparatus according to claim 1, it is characterized in that: also comprise USB communication interface in order to be connected with host computer, be connected by the I/O interface between described USB communication interface and the described microprocessor, so that download or upload metrical information between described microprocessor and the host computer.
5, anode electrolytic cell bus current distribution measuring apparatus according to claim 4, it is characterized in that: also comprise battery and power switcher, the output terminal of described battery and described USB communication interface connects an input terminus of described power switcher respectively, and the output terminal of described power switcher is connected with the input terminus of described microprocessor.
6, anode electrolytic cell bus current distribution measuring apparatus according to claim 1, it is characterized in that: the built-in or external overload alarm device of described microprocessor, so that when anode electrolytic cell bus current measuring result surpasses the higher limit of user's setting, report to the police.
7, the described anode electrolytic cell bus current of claim 1 distribution measuring apparatus is characterized in that: described analog to digital converter is the gain programmable analog to digital converter.
8, the described anode electrolytic cell bus current of claim 1 distribution measuring apparatus is characterized in that: described indicating meter is a liquid-crystal display.
9, anode electrolytic cell bus current distribution measuring apparatus according to claim 8, it is characterized in that: also comprise light detector, the output terminal of described light detector is connected with an input terminus again of described microprocessor, so that control the open and close of described LCD backlight light source.
10, according to each described anode electrolytic cell bus current distribution measuring apparatus of claim 1-9, it is characterized in that: described microprocessor is an embedded microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201099014U CN201241186Y (en) | 2008-08-11 | 2008-08-11 | Electrolytic tank anode bus current distribution measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201099014U CN201241186Y (en) | 2008-08-11 | 2008-08-11 | Electrolytic tank anode bus current distribution measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN201241186Y true CN201241186Y (en) | 2009-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201099014U Expired - Fee Related CN201241186Y (en) | 2008-08-11 | 2008-08-11 | Electrolytic tank anode bus current distribution measuring instrument |
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| Country | Link |
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| CN (1) | CN201241186Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088369A (en) * | 2013-02-27 | 2013-05-08 | 云南铝业股份有限公司 | On-line measurement method of bus current of aluminium electrolysis cell |
-
2008
- 2008-08-11 CN CNU2008201099014U patent/CN201241186Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088369A (en) * | 2013-02-27 | 2013-05-08 | 云南铝业股份有限公司 | On-line measurement method of bus current of aluminium electrolysis cell |
| CN103088369B (en) * | 2013-02-27 | 2015-06-10 | 云南铝业股份有限公司 | On-line measurement method of bus current of aluminium electrolysis cell |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20130811 |