CN104181848B - Device and method for eliminating cathode scale automatically - Google Patents
Device and method for eliminating cathode scale automatically Download PDFInfo
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- CN104181848B CN104181848B CN201310193185.8A CN201310193185A CN104181848B CN 104181848 B CN104181848 B CN 104181848B CN 201310193185 A CN201310193185 A CN 201310193185A CN 104181848 B CN104181848 B CN 104181848B
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Abstract
The invention discloses a device and method for eliminating cathode scale automatically. The device comprises a PLC controller, relays, ruthenium iridium titanium electrodes, current sensors, a major loop and a minor loop and the like. When the PLC controller detects decrease of the current of the major loop, the major loop cathode relay is disconnected, minor loop relay is connected, the cathode serves as the anode in the minor loop, so that positive and negative conversion of the electrode is realized, and the scale on the surface is eliminated; a few minutes later, the minor loop relay is disconnected, the major loop relay is connected, and the electrode continues to serve as the cathode of the major loop, so that with the same method, the scale on the surface of the other cathode is eliminated; after the scale on the cathode is eliminated, the electrodes are connected to the major loop to provide power to a main connector box; and with such circulation, the surface of the cathode can be kept clean. With the device and method for eliminating cathode scale automatically, the scale on the surface of the cathode can be eliminated on the basis of not interrupting power source supply, thereby improving power supply efficiency and prolonging the service life of the cathode.
Description
Technical field
The present invention relates to a kind of eliminate negative electrode foulant device and method automatically, can be applicable to submarine observation network negative electrode scale removal
And electrolytic seawater negative electrode scale removal.
Background technology
Observation instrument is placed on seabed by submarine observation system, and being supplied to each observation station by wired and wireless network should be able to
Amount, gather information, thus realize round-the-clock, long-term, continuous automatic Observation.Submarine observation system can provide many key elements, many
Long-term, synthesis, the real-time monitored of section, observation scope includes seabed crust deep part, seabed surface, Marine water and sea, observation
Content is related to the subject parameter such as physics, chemistry, geology, biology and its mutual relation, can be applicable to basic scientific research, resource with
The aspects such as energy exploration exploitation, disaster prevention and environmental conservation, navigation and military affairs.Submarine observation system has become earth system
3rd observation platform of system.
In seabed observation network system, electric energy is the lifeblood of seabed observation network, without the whole submarine observation of electric energy
System cannot operate, and each of seabed observation network instrument runs and all be unable to do without electric energy.Electric energy feed system seeks to
Electric energy is endlessly transported in seabed observation network, is that underwater observation instrument and equipment is powered, maintain plug into box and each
The normal operation of observation instrument equipment.The quality of electric energy supply will directly influence whether seabed observation network can normally be transported
OK.In whole submarine observation network is built, the design of electric energy feed system and construction occupy very important status.Electric power system
The electric energy of responsible whole system, for giving management, decides the life cycle of whole system.Power supply technique is to ensure that submarine observation
The key technology that system normal table runs.
Submarine observation system adopts sea water as the positive pole of transmitting loop, by the use of wire as the negative pole of transmitting loop
Unidirectional current can be transmitted, so referred to as single-stage direct current transportation.Bank base station institute receiving electrode is referred to as anode, and main box of plugging into is placed on sea
Bottom, its electrode is referred to as negative electrode.There is complicated chemical reaction, negative electrode with the ion in sea water near the transmission of electric current, negative electrode
Attachment is precipitated by whiteness in surface, and main component is Calcium Carbonate, magnesium carbonate, calcium sulfate etc..The white thing of this blending constituent
Matter resistivity is very big, is insoluble in sea water, is attached to cathode surface, and cathodic conductivity is deteriorated, and leads to power transmission efficiency to reduce, and reduces cloudy
Pole service life.Because negative electrode is located at seabed, maintenance cost is expensive, therefore should design the automatic electricity eliminating cathode surface foulant
Road, to extend negative electrode service life.
Content of the invention
Easily it is subject to the problem of foulant for negative electrode in prior art in electricity transmission process, the present invention provides one kind automatically to disappear
Device and method except negative electrode foulant.
The present invention be employed technical scheme comprise that for achieving the above object：A kind of elimination negative electrode foulant device automatically, bag
Include major loop and minor loop, wherein,
Major loop, including bank base station and its anode that connected, described bank base station is also connected with DC voltage converter, described
DC voltage converter connects the first current sensor, and described first current sensor connects relay S1 and relay respectively
S2, other end connection electrode A of described relay S1, other end connection electrode B of relay S2；
Minor loop, including relay S3, S4, S5, S6, S7, S8 and the second current sensor, described relay S3 connects electricity
Pole A, relay S4 connection electrode B, the other end of relay S3, S4 connects relay S5 and S7, and the other end of relay S5 is even
Meet positive pole and the relay S6 of DC power supplier, the other end of relay S7 connects resistance and relay S8, described relay
The other end of S6 is connected with the other end of relay S8 and connection electrode C；The negative pole of described DC power supplier connects described the
Two current sensors, the other end of the second current sensor connects the other end of described resistance；
Described relay S1, S2, S3, S4, S5, S6, S7, S8 are all connected with PLC, and its opened/closed is by PLC control
Device controls；
Described first current sensor and the second current sensor are all connected with PLC, detected current feedback to
PLC；
Described PLC is used for realizing switching between primary and secondary loop for the ruthenium-iridium-tantalum electrode according to detection electric current, by described
DC power supplier is powered.
Described electrode A, B, C are to use sea water as the ruthenium-iridium-tantalum electrode of conducting medium.
Described DC voltage converter is DC/DC insulating power supply module.
Described minor loop electric current is 3 times of main circuit current.
A kind of elimination negative electrode foulant method automatically, comprises the following steps：
Activation system, relay S1, S2, S3, S4, S5, S6, S7, S8 original state is off-state；
Under the control of PLC, closing relay S1, disconnection relay S2, make electrode A as the negative electrode of major loop；
Main circuit current is detected by the first current sensor, if decreasing value exceeds set point, PLC controls
The relay S2 closure of major loop, relay S1 disconnect, and make electrode B as the negative electrode of major loop；PLC controls minor loop
Relay S4, S6, S7 disconnect, relay S3, S5, S8 close, make electrode A, C respectively as anode, negative electrode access minor loop；
The some minutes of time delay, are removed foulant and process to electrode A；
PLC controls minor loop relay S3, S5, S8 to disconnect, relay S4, S5, S8 closure, so that electrode B, C is divided
Do not access minor loop as anode, negative electrode；The some minutes of time delay, are removed foulant and process to electrode B；
According to the method described above electrode A, B are repeated by removal foulant and process.
When electrode A, B reach stipulated number except foulant number of times, electrode C is carried out process except foulant：PLC
Control relay S3, S5, S8 disconnect, and relay S4, S6, S7 close, and make electrode B as negative electrode, electrode C as anode, utilize
Electrode B carries out to electrode C processing except foulant.
When electrode A, B reach stipulated number except foulant number of times, electrode C is carried out process except foulant：PLC
Control relay S4, S5, S8 disconnect, and relay S3, S6, S7 close, and make electrode A as negative electrode, electrode C as anode, utilize
Electrode A carries out to electrode C processing except foulant.
Described stipulated number is 10 times.
The present invention has advantages below and beneficial effect：
1st, the present invention selects PLC, and system constitutes simple, reliability height, easy to use, adapts to various severe fortune
Row environment, strong antijamming capability.
2nd, method simple practical.The present invention is devised using the method for level and automatically removes cathode surface foulant device,
Extend negative electrode service life, improve the stability of submarine observation system power supply.
3, present invention achieves the automatic removing of cathode surface foulant, reduce the maintenance cost of negative electrode.
4th, it is easy to promote.The present invention just can be used in electrolytic seawater industry through simple modification.
Brief description
Fig. 1 is circuit theory diagrams of the present invention；
Fig. 2 is control program flow chart of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail.
As shown in figure 1, the present invention is a kind of automatically eliminates negative electrode foulant device, including PLC, relay, ruthenium iridium
Ti electrode, current sensor, DC voltage converter；PLC control relay opened/closed；Current sensor detects
Primary and secondary loop current, feeds back to PLC；The control program of PLC, realizes ruthenium-iridium-tantalum electrode between primary and secondary loop
Switching；Based on ruthenium-iridium-tantalum electrode, minor loop use sea water as the electrode of conducting medium.DC voltage converter is isolation electricity
Source module.DC voltage converter constitutes minor loop with load, and minor loop electric current is 3 times of main circuit current.PLC with
Current sensor connects 24V DC power supplier by power interface.
As shown in Fig. 2 the control method of the control program that prestored using PLC, wherein said control program include with
Lower step：System initialization, electric normal work on major loop, electrode A is first as negative electrode；Whether detection main circuit current reduces；
If decreasing value exceeds set point, PLC sends control command, closing relay S2, and electrode B continues as major loop negative electrode, disconnection
Electrical equipment S1, closes minor loop relay S3, S5, S8, makes electrode A, C access minor loop respectively as anode, negative electrode；Electrode A is real
Showed the removal of falling level foulant, after some minutes of time delay, PLC sends control command, disconnect minor loop relay S3, S5,
S8, repeat the above steps process major loop electrode B；When electrode A, B reach 10 times except foulant number of times, electrode C is removed
Foulant is processed, and PLC sends control command, closing relay S4, S6, S7, and electrode B is as negative electrode, electrode C as anode, profit
With electrode B, electrode C is carried out processing except foulant.After having processed, except foulant number of times is zero to return to major cycle.
This example selects the PLC of WAGO company, by programmable fieldbus controller（PFC）750-881, numeral
Amount output module 750-1504, Analog input mModule 750-468 composition.Its major advantage has reliability height, adapts to complicated ring
Border ability is strong, and exploitation is simply it is easy to extend.Programmable fieldbus controller（PFC）750-881 has 32 bit CPUs and 1Mb's
Program storage, has very high instruction disposal ability, has the ability of execution multitask.Analog input mModule 750-
468 is 4 tunnels analogy amount input modules, acceptable 0-10V standard signal, has 12 precision, input value conversion time 4ms,
The output valve of current sensor can be directly coupled, and circuit is simple, reliable.Digital output module 750-1504 is 16 passages
Digital output module, output voltage 24V, output current indicates the on off state of each passage, therefore up to 0.5A, green LED
Relay can be directly driven.
Hall effect current sensor selected by current sensor, and dynamic response characteristic is good.This example selects Ke Hai company electricity
Flow sensor KT0.2A/PZ-5V, insulation voltage can reach 15KV, measurement range 0-200mA, output voltage range 0-5V, this letter
Number can be directly inputted to PLC Analog input mModule 750-468, realize current measurement.
Major loop relay selects the RF73-26S of Jennings company, response time 4ms, nominal load DC14kV, line
Circle rated voltage 24V, PLC digital output module can directly drive relay control coil.Ohm selected by minor loop relay
The DK2a-24V double-pole single-throw (D.P.S.T.) relay of dragon, maximum switchable voltage DC30V, maximum switching electric current is up to 10A, response time
3ms, coil power consumption 200mW.
DC voltage converter selects model V375A24E600B of Vicor DC/DC power module.
V375A24E600B adopts the ZCS/ZV structure of low noise, and its input voltage range is 250 425V, and output voltage is 24V, work(
Rate is 600W, carries output over-voltage protection, and threshold value is 28.1V.
Electrode A, B, C are from using titanium plate as matrix, the composite with noble metals such as ruthenium, iridium as coating.Ruthenium, iridium have
Good electric conductivity, is hardly affected by any environment, and seawater corrosion resistance ability is by force it is allowed to electric current density is high.
Claims (7)
1. one kind eliminates negative electrode foulant device automatically it is characterised in that including major loop and minor loop, wherein,
Major loop, including bank base station and its anode that connected, described bank base station is also connected with DC voltage converter, described direct current
Voltage changer connects the first current sensor, and described first current sensor connects relay S1 and relay S2, institute respectively
The other end stating relay S1 connects ruthenium-iridium-tantalum electrode A, and the other end of relay S2 connects ruthenium-iridium-tantalum electrode B；
Minor loop, including relay S3, S4, S5, S6, S7, S8 and the second current sensor, described relay S3 connects ruthenium-iridium-tantalum
Electrode A, relay S4 connects ruthenium-iridium-tantalum electrode B, and the other end of relay S3, S4 connects relay S5 and S7, relay S5's
The other end connects positive pole and the relay S6 of DC power supplier, and the other end of relay S7 connects resistance and relay S8, institute
The other end stating relay S6 is connected with the other end of relay S8 and connects ruthenium-iridium-tantalum electrode C；Described DC power supplier
Negative pole connects described second current sensor, and the other end of the second current sensor connects the other end of described resistance；
Described relay S1, S2, S3, S4, S5, S6, S7, S8 are all connected with PLC, and its opened/closed is by PLC control
System；
Described first current sensor and the second current sensor are all connected with PLC, are detected that current feedback is controlled to PLC
Device processed；
Described PLC is used for realizing ruthenium-iridium-tantalum electrode A, B, C switching between primary and secondary loop according to detection electric current, by institute
State DC power supplier to power；
Described ruthenium-iridium-tantalum electrode A, B, C are to use sea water as the ruthenium-iridium-tantalum electrode of conducting medium.
2. according to claim 1 a kind of automatically eliminate negative electrode foulant device it is characterised in that described unidirectional current buckling
Parallel operation is DC/DC insulating power supply module.
3. according to claim 1 a kind of automatically eliminate negative electrode foulant device it is characterised in that described minor loop electric current
For main circuit current 3 times.
4. a kind of automatic elimination negative electrode foulant method of device according to claim 1 is it is characterised in that include following walking
Suddenly：
Activation system, relay S1, S2, S3, S4, S5, S6, S7, S8 original state is off-state；
Under the control of PLC, closing relay S1, disconnection relay S2, make ruthenium-iridium-tantalum electrode A as the moon of major loop
Pole；
Main circuit current is detected by the first current sensor, if decreasing value exceeds set point, PLC controls to be led back
The relay S2 closure on road, relay S1 disconnect, and make electrode B as the negative electrode of major loop；PLC controls continuing of minor loop
Electrical equipment S4, S6, S7 disconnect, and relay S3, S5, S8 close, and make ruthenium-iridium-tantalum electrode A, C access secondary returning respectively as anode, negative electrode
Road；The some minutes of time delay, are removed foulant and process to ruthenium-iridium-tantalum electrode A；
PLC controls minor loop relay S3, S5, S8 to disconnect, relay S4, S5, S8 closure, makes ruthenium-iridium-tantalum electrode B, C
Access minor loop respectively as anode, negative electrode；The some minutes of time delay, are removed foulant and process to ruthenium-iridium-tantalum electrode B；
According to the method described above ruthenium-iridium-tantalum electrode A, B are repeated by removal foulant and process.
5. automatic elimination negative electrode foulant method according to claim 4 is it is characterised in that work as ruthenium-iridium-tantalum electrode A, B removes
When foulant number of times reaches stipulated number, ruthenium-iridium-tantalum electrode C is carried out process except foulant：PLC control relay S3,
S5, S8 disconnect, and relay S4, S6, S7 close, and make ruthenium-iridium-tantalum electrode B as negative electrode, ruthenium-iridium-tantalum electrode C as anode, using ruthenium
Iridium Ti electrode B carries out to ruthenium-iridium-tantalum electrode C processing except foulant.
6. automatic elimination negative electrode foulant method according to claim 4 is it is characterised in that work as ruthenium-iridium-tantalum electrode A, B removes
When foulant number of times reaches stipulated number, ruthenium-iridium-tantalum electrode C is carried out process except foulant：PLC control relay S4,
S5, S8 disconnect, and relay S3, S6, S7 close, and make ruthenium-iridium-tantalum electrode A as negative electrode, ruthenium-iridium-tantalum electrode C as anode, using ruthenium
Iridium Ti electrode A carries out to ruthenium-iridium-tantalum electrode C processing except foulant.
7. the automatic elimination negative electrode foulant method according to claim 5 or 6 is it is characterised in that described stipulated number is
10 times.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310193185.8A CN104181848B (en) | 2013-05-22 | 2013-05-22 | Device and method for eliminating cathode scale automatically |
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| CN201310193185.8A CN104181848B (en) | 2013-05-22 | 2013-05-22 | Device and method for eliminating cathode scale automatically |
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| CN104181848A CN104181848A (en) | 2014-12-03 |
| CN104181848B true CN104181848B (en) | 2017-02-08 |
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| CN106277213A (en) * | 2016-09-12 | 2017-01-04 | 国家电网公司 | A kind of extra-high voltage direct current converter valve platinum electrode electrochemical descaling method |
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| US5234563A (en) * | 1992-06-01 | 1993-08-10 | Janix Kabushiki Kaisha | Electrolytic ionized water producer of a continuous type |
| CN101003906A (en) * | 2006-01-20 | 2007-07-25 | 徐文星 | Method for sterilization, and eliminating accumulated calcium for electrobath |
| CN201593068U (en) * | 2009-10-15 | 2010-09-29 | 浙江威邦机电科技有限公司 | Electrolyzer capable of realizing automatic pole changing |
| CN202337833U (en) * | 2011-11-30 | 2012-07-18 | 福州浩达智能科技有限公司 | Periodic pole-reversing type electrolytic device |
| CN203241770U (en) * | 2013-05-22 | 2013-10-16 | 中国科学院沈阳自动化研究所 | Device capable of automatically eliminating cathode fouling |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6998029B2 (en) * | 2001-08-15 | 2006-02-14 | Eltech Systems Corporation | Anodic protection systems and methods |
| US20080237060A1 (en) * | 2007-03-27 | 2008-10-02 | Hegel Rudolph R | Methods and apparatus for electrolytic treatment of water |
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2013
- 2013-05-22 CN CN201310193185.8A patent/CN104181848B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5234563A (en) * | 1992-06-01 | 1993-08-10 | Janix Kabushiki Kaisha | Electrolytic ionized water producer of a continuous type |
| CN101003906A (en) * | 2006-01-20 | 2007-07-25 | 徐文星 | Method for sterilization, and eliminating accumulated calcium for electrobath |
| CN201593068U (en) * | 2009-10-15 | 2010-09-29 | 浙江威邦机电科技有限公司 | Electrolyzer capable of realizing automatic pole changing |
| CN202337833U (en) * | 2011-11-30 | 2012-07-18 | 福州浩达智能科技有限公司 | Periodic pole-reversing type electrolytic device |
| CN203241770U (en) * | 2013-05-22 | 2013-10-16 | 中国科学院沈阳自动化研究所 | Device capable of automatically eliminating cathode fouling |
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