CN101265592B - Over voltage and under voltage protection device in aluminum electrolysis - Google Patents
Over voltage and under voltage protection device in aluminum electrolysis Download PDFInfo
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- CN101265592B CN101265592B CN2007100776845A CN200710077684A CN101265592B CN 101265592 B CN101265592 B CN 101265592B CN 2007100776845 A CN2007100776845 A CN 2007100776845A CN 200710077684 A CN200710077684 A CN 200710077684A CN 101265592 B CN101265592 B CN 101265592B
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- rly
- cpu
- anodic control
- anode
- normally closed
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 11
- 238000005868 electrolysis reaction Methods 0.000 title claims description 10
- 239000004411 aluminium Substances 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 3
- 230000000630 rising effect Effects 0.000 description 5
- 230000001012 protector Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention discloses an over-voltage and under-voltage protective device for the electrolytic production of aluminum. CPU(2),EPROM (1) is connected with CPU(2); one end of a detection device (3) is connected with a tank power supply (4), the detection device (3) is respectively connected with an anode fall control relay (5) and an anode rise control relay (6) at one end of the normally open contact (7) of the anode fall control relay and one end of the normally open contact (8) of the anode rise control relay on one end, the other ends are connected with CPU(2); the one end of the normallyclosed contact (9) of the anode fall control relay and one end of the normally closed contact (10) of the anode rise control relay are connected with CPU(2), the other end of the normally closed contact (9) of the anode fall control relay is connected with a relay (11), and the other end of the normally closed contact (10) of the anode rise control relay is connected with a relay (12). The invention transfers the signals of voltage value or working time to CPU in order to carry out the judgment of whether valid or invalid through the detection device, so as to enable CPU to make sure whether or not to carry out the current job step, and therefore protection can be ensured to be carried out timely in abnormal conditions.
Description
Technical field
The present invention relates to a kind of voltage protector, particularly a kind of Aluminium Electrolysis overvoltage and under-voltage protection device.
Background technology
In Aluminium Electrolysis, if manually " rising anode " button is because of the fault continuously effective, anode can not move when being in " automatically " state, in case be converted to " manually " state, lift promotes anode immediately, and the number of occurrence is many more, and danger is big more.Equally, when " rising anode " button because the fault continuously effective, also can cause and fall anode continuously and press electrolytical situation, present protector is a single ply protective, if problem is difficult to timely discovery, therefore allow produce in the hole.
Summary of the invention
The objective of the invention is, a kind of Aluminium Electrolysis overvoltage and under-voltage protection device are provided, make at bath voltage during greater than 7.5V; rising the anode action can not automatically perform, manually unrestricted, at bath voltage during less than 3.5V; falling the anode action can not automatically perform, manually unrestricted.Simultaneously, guard mode will detect in real time, guarantees that protection effectively.
Technical scheme of the present invention is, EPROM (1) is connected with CPU (2), first proofing unit (3) one end connective slot power supplys (4), first proofing unit (3) respectively with fall anodic control rly. (5) and rise anodic control rly. (6) and be connected, the normally opened contact (7) that falls the anodic control rly. is connected first proofing unit (3) with normally opened contact (8) one ends that rise the anodic control rly., and the other end is connected with CPU (2); The normally closed contact (9) that falls the anodic control rly. is connected CPU (2) with normally closed contact (10) one ends that rise the anodic control rly., normally closed contact (9) the other end that falls the anodic control rly. connects first rly. (11), and normally closed contact (10) the other end that rises the anodic control rly. connects second rly. (12); First rly. (11) is connected with CPU (2) by second proofing unit (13) with second rly. (12).
Described Aluminium Electrolysis overvoltage and under-voltage protection device is characterized in that: fall the normally opened contact (7) of anodic control rly., the normally opened contact (8) that rises the anodic control rly. is connected with CPU (2) by buffer circuit (14) with second proofing unit (13).
The described normally closed contact (9) that falls the anodic control rly. is connected with CPU (2) by driving chip (15) with the normally closed contact that rises the anodic control rly. (10).
Describedly fall anodic control rly. (5), rise anodic control rly. (6), first rly. (11) and second rly. (12) operating voltage be 12V.
Compared with the prior art; whether the present invention is transferred to CPU by proofing unit with the signal of voltage magnitude or working hour and carries out effectively judging; thereby make CPU determine whether the work at present step is carried out,, can protect timely to guarantee when abnormal conditions occurring.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Embodiment: EPROM1 is connected with CPU2, first proofing unit, 3 one end connective slot power supplys 4, first proofing unit 3 respectively with fall anodic control rly. 5 and rise anodic control rly. 6 and be connected, the normally opened contact 7 that falls the anodic control rly. is connected first proofing unit 3 with normally opened contact 8 one ends that rise the anodic control rly., and the other end is connected with CPU2 by buffer circuit 14; The normally closed contact 9 that falls the anodic control rly. is connected CPU2 with normally closed contact 10 1 ends that rise the anodic control rly. by driving chip 15, normally closed contact 9 the other ends that fall the anodic control rly. connect first rly. 11, and normally closed contact 10 the other ends that rise the anodic control rly. connect second rly. 12; First rly. 11 is connected with CPU2 by buffer circuit 14 by second proofing unit 13 with second rly. 12, falls anodic control rly. 5, rises anodic control rly. 6, first rly. 11 and second rly., 12 operating voltage are 12V.
In the working process, first proofing unit 3 will judge that the operating voltage of groove power supply or opening time are whether in normal range by predefined requirement, if it is normal, fall anodic control rly. 5 so and rise anodic control rly. 6 and disconnect, the normally opened contact 7 that falls the anodic control rly. is constant with normally opened contact 8 states that rise the anodic control rly., testing equipment 3 does not send signal among the CPU2, if voltage is higher, then first proofing unit 3 sends signal, rising anodic control rly. 6 connects, the normally opened contact 8 that rises the anodic control rly. is connected, and the higher signal of voltage sends among the CPU2, and the normally closed contact 10 that rises the anodic control rly. simultaneously disconnects, the instruction ignore that voltage is risen, the normally closed contact 9 of potential relay is constant, and CPU2 sends signal control first rly. 11 and connects, and begins to reduce voltage to normal range.Second proofing unit 13 detects the connection situation of first rly. 11 and second rly. 12 and signal is turned back among the CPU; The situation of loss of voltage is then just in time opposite.First proofing unit 3 and second proofing unit 13 are non-standard component; first proofing unit 3 is at detected voltage during greater than 7.5V; drive the anodic protection rly. work that rises; the normally closed contact 10 that rises the anodic control rly. disconnects; make that to rise anodic protection effective; can not carry out rising the anode action, the normally opened contact 8 that rises the anodic control rly. is simultaneously connected, and CPU can detect the protection useful signal.At this moment, second proofing unit 13 will detect the working order of second rly. 12, if invalid, prove that protection is normal, otherwise the proof protection is undesired, immediately alarm.First proofing unit 3 is at detected voltage during less than 3.5V; the work of anodic protection rly. falls in driving; the normally closed contact 9 that falls the anodic control rly. disconnects; make that to fall anodic protection effective; the anode action can not be fallen; fall the normally opened contact 7 of anodic control rly. simultaneously and connect, CPU can detect the protection useful signal.At this moment, second proofing unit 13 will detect the working order of first rly. 11, if invalid, prove that protection is normal, otherwise the proof protection is undesired, immediately alarm.
Claims (4)
1. Aluminium Electrolysis overvoltage and under-voltage protection device comprise EPROM (1), CPU (2), and EPROM (1) is connected with CPU (2); It is characterized in that: first proofing unit (3) one ends connect power supply (4), first proofing unit (3) respectively with fall anodic control rly. (5) and rise anodic control rly. (6) and be connected, the normally opened contact (7) that falls the anodic control rly. is connected first proofing unit (3) with normally opened contact (8) one ends that rise the anodic control rly., and the other end is connected with CPU (2); The normally closed contact (9) that falls the anodic control rly. is connected CPU (2) with normally closed contact (10) one ends that rise the anodic control rly., normally closed contact (9) the other end that falls the anodic control rly. connects first rly. (11), and normally closed contact (10) the other end that rises the anodic control rly. connects second rly. (12); First rly. (11) is connected with CPU (2) by second proofing unit (13) with second rly. (12).
2. Aluminium Electrolysis overvoltage according to claim 1 and under-voltage protection device is characterized in that: fall the normally opened contact (7) of anodic control rly., the normally opened contact (8) that rises the anodic control rly. is connected with CPU (2) by buffer circuit (14) with second proofing unit (13).
3. Aluminium Electrolysis overvoltage according to claim 1 and under-voltage protection device is characterized in that: the normally closed contact (9) that falls the anodic control rly. is connected with CPU (2) by driving chip (15) with the normally closed contact that rises the anodic control rly. (10).
4. Aluminium Electrolysis overvoltage according to claim 1 and under-voltage protection device is characterized in that: fall anodic control rly. (5), rise anodic control rly. (6), first rly. (11) and second rly. (12) operating voltage be 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100776845A CN101265592B (en) | 2007-03-12 | 2007-03-12 | Over voltage and under voltage protection device in aluminum electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100776845A CN101265592B (en) | 2007-03-12 | 2007-03-12 | Over voltage and under voltage protection device in aluminum electrolysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101265592A CN101265592A (en) | 2008-09-17 |
| CN101265592B true CN101265592B (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100776845A Active CN101265592B (en) | 2007-03-12 | 2007-03-12 | Over voltage and under voltage protection device in aluminum electrolysis |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1012790A (en) * | 1963-08-30 | 1965-12-08 | Alusuisse | Improvements relating to the electrolytic production of aluminium |
| CN1055073A (en) * | 1990-03-23 | 1991-10-02 | 陈忆申 | The auto-transformer type AC stabilizer |
| CN2497460Y (en) * | 2001-05-24 | 2002-06-26 | 郑碎挺 | Self-protective fully-automatic over-under voltage protector |
| CN1807694A (en) * | 2005-11-22 | 2006-07-26 | 沈阳建筑大学 | Aluminium electrolysis fault predictor |
-
2007
- 2007-03-12 CN CN2007100776845A patent/CN101265592B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1012790A (en) * | 1963-08-30 | 1965-12-08 | Alusuisse | Improvements relating to the electrolytic production of aluminium |
| CN1055073A (en) * | 1990-03-23 | 1991-10-02 | 陈忆申 | The auto-transformer type AC stabilizer |
| CN2497460Y (en) * | 2001-05-24 | 2002-06-26 | 郑碎挺 | Self-protective fully-automatic over-under voltage protector |
| CN1807694A (en) * | 2005-11-22 | 2006-07-26 | 沈阳建筑大学 | Aluminium electrolysis fault predictor |
Non-Patent Citations (4)
| Title |
|---|
| 刘金贵等.铝电解自控系统槽控机信号检测与保护功能设计.电工技术 8.2004,(8),22-23. |
| 刘金贵等.铝电解自控系统槽控机信号检测与保护功能设计.电工技术 8.2004,(8),22-23. * |
| 山东淄博铝厂等.铝电解槽槽电阻自动控制及效应予报.轻金属 3.1978,(3),2,9-13. |
| 山东淄博铝厂等.铝电解槽槽电阻自动控制及效应予报.轻金属 3.1978,(3),2,9-13. * |
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| CN101265592A (en) | 2008-09-17 |
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