CN203241770U - Device capable of automatically eliminating cathode fouling - Google Patents
Device capable of automatically eliminating cathode fouling Download PDFInfo
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- CN203241770U CN203241770U CN 201320284824 CN201320284824U CN203241770U CN 203241770 U CN203241770 U CN 203241770U CN 201320284824 CN201320284824 CN 201320284824 CN 201320284824 U CN201320284824 U CN 201320284824U CN 203241770 U CN203241770 U CN 203241770U
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Abstract
The utility model discloses a device capable of automatically eliminating cathode fouling, comprising a PLC controller, relays, ruthenium-indium-titanium electrodes, a current sensor, a main loop, a secondary loop, and the like. A relay of a cathode of the main loop is switched off and relays of the secondary loop are switched on when the PLC controller detects that the current of the main loop is decreased, and the cathode is served as an anode in the secondary loop, thereby realizing the positive and negative conversion of the electrode, and eliminating the surface fouling. After a few minutes, the relays of the secondary loop are switched off, and the relay of the main loop is switched on, the electrode is continued to use as the cathode in the main loop. The surface fouling of another cathode is eliminated by using the same method. After eliminating the cathode fouling, the cathodes are all accessed to the main loop for providing power for a main junction box. By repeating the cycle, the surfaces of the cathodes can be kept clean. By adopting the device capable of automatically eliminating cathode fouling, the fouling on the surfaces of the cathodes can be eliminated on the basis of non-interrupting power supply, the power supplying efficiency is improved, and the service life of the cathodes can be prolonged.
Description
Technical field
The utility model relates to a kind of automatic elimination negative electrode foulant device, can be applicable to the scale removal of submarine observation network negative electrode and the scale removal of electrolytic seawater negative electrode.
Background technology
The submarine observation system is placed on the seabed with observation instrument, by wired and wireless network to each observation station supplying energy, collection information, thereby realize round-the-clock, long-term, continuous automatic Observation.The submarine observation system can provide many key elements, multi-disciplinary long-term, comprehensive, real-time monitored; observation scope comprises seabed crust deep part, surface, seabed, Marine water and sea; observation content relates to subject parameter and the mutual relationships thereof such as physics, chemistry, geology, biology, can be applicable to the aspects such as basic scientific research, natural resources and energy resources exploratory development utilization, disaster prevention and environmental protection, navigation and military affairs.The submarine observation system has become the 3rd observation platform of earth system.
In the seabed observation network system, electric energy is the lifeblood of seabed observation network, has not had the whole submarine observation of electric energy system just can not operate, and each the instrument operation in the seabed observation network be unable to do without electric energy.The electric energy feed system will be transported to electric energy in the seabed observation network exactly endlessly, is the power supply of underwater observations instrument and equipment, keeps the normal operation of plug into box and each observation instrument equipment.Whether the quality that electric energy is supplied with will directly have influence on seabed observation network and can move normally.In whole submarine observation network was built, the design of electric energy feed system and construction occupied very important status.Electric power system is responsible for the electric energy of whole system and is supplied with and management, is determining the life cycle of whole system.Power supply technique is the gordian technique that guarantees the normal stable operation of submarine observation system.
The submarine observation system adopts seawater as the positive pole of transmitting loop, utilizes a wire can transmit direct current as the negative pole of transmitting loop, so be called the single-stage direct current transportation.Bank base station institute receiving electrode is called anode, and the main box of plugging into is placed on the seabed, and its electrode is called negative electrode.Along with the transmission of electric current, complicated chemical reaction occurs near the ion the negative electrode in the seawater, and cathode surface is adhered to by the whiteness precipitation, and principal ingredient is calcium carbonate, magnesium carbonate, calcium sulphate etc.The whiteness resistivity of this blending constituent is very large, is insoluble in seawater, is attached to cathode surface, and the cathodic conductivity variation causes power transmission efficiency to reduce, and reduces negative electrode serviceable life.Because negative electrode is positioned at the seabed, maintenance cost is expensive, therefore should design the circuit of automatic elimination cathode surface foulant, to prolong negative electrode serviceable life.
The utility model content
Easily be subjected to the problem of foulant in the transmission of electricity process for negative electrode in the prior art, the utility model provides a kind of device of automatic elimination negative electrode foulant.
The technical scheme that the utility model adopts for achieving the above object is: a kind of automatic elimination negative electrode foulant device, comprise major loop and minor loop, wherein,
Major loop, comprise bank base station and the anode that connects thereof, described bank base station also connects DC voltage converter, described DC voltage converter connects the first current sensor, described the first current sensor connects respectively relay S1 and relay S2, the other end connecting electrode A of described relay S1, the other end connecting electrode B of relay S2;
Minor loop, comprise relay S3, S4, S5, S6, S7, S8 and the second current sensor, described relay S3 connecting electrode A, relay S4 connecting electrode B, the other end of relay S3, S4 connects relay S5 and S7, the other end of relay S5 connects positive pole and the relay S6 of DC power supplier, and the other end contact resistance of relay S7 and relay S8, the other end of the other end of described relay S6 and relay S8 link to each other and connecting electrode C; The negative pole of described DC power supplier connects described the 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 all connect the PLC controller, and its opened/closed is controlled by the PLC controller;
Described the first current sensor be connected current sensor and all connect the PLC controller, it is detected current feedback to the PLC controller;
Described PLC controller is used for realizing the switching of ruthenium-iridium-tantalum electrode between the primary and secondary loop according to detecting electric current, by described DC power supplier power supply.
Described electrode A, B, C utilize seawater 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.
The utlity model has following advantage and beneficial effect:
1, the utility model is selected the PLC controller, and system consists of simple, and reliability is high, and is easy to use, adapts to various abominable running environment, and antijamming capability is strong.
2, method simple practical.The utility model utilization is fallen the method for level and has been designed automatic removal cathode surface foulant device, has prolonged negative electrode serviceable life, has improved the stability of submarine observation system power supply.
3, the utility model has been realized the automatic removing of cathode surface foulant, has reduced the maintenance cost of negative electrode.
4, be convenient to promote.The utility model just can be used in the electrolytic seawater industry through simple modification.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams;
Fig. 2 is the control program process flow diagram that the utility model adopts.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
As shown in Figure 1, a kind of automatic elimination negative electrode foulant device of the utility model comprises PLC controller, relay, ruthenium-iridium-tantalum electrode, current sensor, DC voltage converter; PLC controller pilot relay opened/closed; Current sensor detects the primary and secondary loop current, feeds back to the PLC controller; The control program of PLC controller is realized the switching of ruthenium-iridium-tantalum electrode between the primary and secondary loop; The ruthenium-iridium-tantalum electrode is that the primary and secondary loop utilizes seawater as the electrode of conducting medium.DC voltage converter is the insulating power supply module.DC voltage converter and load consist of minor loop, and the minor loop electric current is 3 times of main circuit current.The PLC controller is connected the 24V DC power supplier with current sensor by power interface.
As shown in Figure 2, adopt the prestore control method of control program of PLC controller, wherein said control program may further comprise the steps: the normal operation that powers on of system initialization, major loop, and electrode A is first as negative electrode; Whether detect main circuit current reduces; Exceed setting range if reduce value, PLC sends control command, closing relay S2, and electrode B disconnects relay S1 as the major loop negative electrode, and closed minor loop relay S3, S5, S8 make electrode A, C respectively as anode, negative electrode access minor loop; Electrode A has realized level removal foulant, and time delay is after some minutes, and PLC sends control command, disconnects minor loop relay S3, S5, S8, repeats above-mentioned steps and processes the major loop electrode B; When electrode A, B reach 10 times except the foulant number of times, electrode C is removed foulant process, PLC sends control command, closing relay S4, S6, S7, electrode B, is utilized electrode B that electrode C is removed foulant and is processed as anode as negative electrode, electrode C.After handling, except the foulant number of times is the zero major cycle of getting back to.
This example is selected the PLC controller of WAGO company, is comprised of fieldbus controller able to programme (PFC) 750-881, digital output module 750-1504, analog input module 750-468.Its major advantage has that reliability is high, to adapt to the complex environment ability strong, and exploitation is simple, is easy to expansion.Fieldbus controller able to programme (PFC) 750-881 has the program storage of 32 bit CPUs and 1Mb, has very high instruction process ability, has the ability of carrying out multitask.Analog input module 750-468 is 4 tunnels analogy amount load modules, can accept the 0-10V standard signal, has 12 precision, input value 4ms switching time, and the output valve of current sensor can be directly coupled, and circuit is simple, reliable.Digital output module 750-1504 is 16 passage digital quantity output modules, output voltage 24V, and output current can reach 0.5A, and green LED is indicated the on off state of each passage, therefore can directly drive relay.
Current sensor is selected hall effect current sensor, and dynamic response characteristic is good.This example is selected the current sensor KT0.2A/PZ-5V of Ke Hai company, and insulation voltage can reach 15KV, and measurement range 0-200mA, output voltage range 0-5V, this signal can be directly inputted to PLC analog input module 750-468, realizes current measurement.
The major loop relay is selected the RF73-26S of Jennings company, response time 4ms, and nominal load DC14kV, coil rating voltage 24V, PLC digital output module can directly drive relay control coil.The minor loop relay is selected the DK2a-24V double-pole single-throw (D.P.S.T.) relay of Omron, maximum switchable voltage DC30V, and maximum switch current can reach 10A, response time 3ms, coil power dissipation 200mW.
It is V375A24E600B that DC voltage converter is selected the model of Vicor DC/DC power module.V375A24E600B adopts low noise ZCS/ZV structure, and its input voltage range is 250-425V, and output voltage is 24V, and power is 600W, carries the output over-voltage protection, and threshold value is 28.1V.
Electrode A, B, C select with the titanium plate as matrix, the compound substance take noble metals such as ruthenium, iridium as coating.Ruthenium, iridium have good electric conductivity, are subjected to hardly the impact of any environment, and the seawater corrosion resistance ability is strong, allow current density high.
Claims (4)
1. automatically eliminate negative electrode foulant device for one kind, it is characterized in that, comprise major loop and minor loop, wherein,
Major loop, comprise bank base station and the anode that connects thereof, described bank base station also connects DC voltage converter, described DC voltage converter connects the first current sensor, described the first current sensor connects respectively relay S1 and relay S2, the other end connecting electrode A of described relay S1, the other end connecting electrode B of relay S2;
Minor loop, comprise relay S3, S4, S5, S6, S7, S8 and the second current sensor, described relay S3 connecting electrode A, relay S4 connecting electrode B, the other end of relay S3, S4 connects relay S5 and S7, the other end of relay S5 connects positive pole and the relay S6 of DC power supplier, and the other end contact resistance of relay S7 and relay S8, the other end of the other end of described relay S6 and relay S8 link to each other and connecting electrode C; The negative pole of described DC power supplier connects described the 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 all connect the PLC controller, and its opened/closed is controlled by the PLC controller;
Described the first current sensor be connected current sensor and all connect the PLC controller, it is detected current feedback to the PLC controller;
Described PLC controller is used for realizing the switching of ruthenium-iridium-tantalum electrode between the primary and secondary loop according to detecting electric current, by described DC power supplier power supply.
2. a kind of automatic elimination negative electrode foulant device according to claim 1 is characterized in that, described electrode A, B, C utilize seawater as the ruthenium-iridium-tantalum electrode of conducting medium.
3. a kind of automatic elimination negative electrode foulant device according to claim 1 is characterized in that, described DC voltage converter is DC/DC insulating power supply module.
4. a kind of automatic elimination negative electrode foulant device according to claim 1 is characterized in that, described minor loop electric current is 3 times of main circuit current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320284824 CN203241770U (en) | 2013-05-22 | 2013-05-22 | Device capable of automatically eliminating cathode fouling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320284824 CN203241770U (en) | 2013-05-22 | 2013-05-22 | Device capable of automatically eliminating cathode fouling |
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| CN203241770U true CN203241770U (en) | 2013-10-16 |
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| CN 201320284824 Expired - Lifetime CN203241770U (en) | 2013-05-22 | 2013-05-22 | Device capable of automatically eliminating cathode fouling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941689A (en) * | 2014-04-17 | 2014-07-23 | 浙江大学 | Seabed observation network electrode switching and maintaining system |
| CN104181848A (en) * | 2013-05-22 | 2014-12-03 | 中国科学院沈阳自动化研究所 | Device and method for eliminating cathode scale automatically |
-
2013
- 2013-05-22 CN CN 201320284824 patent/CN203241770U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181848A (en) * | 2013-05-22 | 2014-12-03 | 中国科学院沈阳自动化研究所 | Device and method for eliminating cathode scale automatically |
| CN104181848B (en) * | 2013-05-22 | 2017-02-08 | 中国科学院沈阳自动化研究所 | Device and method for eliminating cathode scale automatically |
| CN103941689A (en) * | 2014-04-17 | 2014-07-23 | 浙江大学 | Seabed observation network electrode switching and maintaining system |
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