CN107699903A - A kind of marine anodization controller and impressed current cathodic protection system - Google Patents
A kind of marine anodization controller and impressed current cathodic protection system Download PDFInfo
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- CN107699903A CN107699903A CN201710951154.2A CN201710951154A CN107699903A CN 107699903 A CN107699903 A CN 107699903A CN 201710951154 A CN201710951154 A CN 201710951154A CN 107699903 A CN107699903 A CN 107699903A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/22—Monitoring arrangements therefor
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
Abstract
The invention discloses a kind of marine anodization controller; including; processing unit, output unit and local signal given circuit; processing unit includes microcontroller; output unit includes PWM controller, full-bridge converter, voltage and current detection circuit, output feedback circuit, error-detector circuit and over-voltage over-current protection circuit; output feedback circuit includes Voltage Feedback and current feedback, error-detector circuit include voltage error detection circuit and current error detection circuit; the controller also has local remote control switching circuit, local signal given circuit.The marine anodization controller can easily switch and change the size of the signal type and signal that are output on sacrificial anode according to the demand of user.Simultaneously present invention also offers a kind of impressed current cathodic protection system, the system has multiple anodization controllers to form and connected by industrial computer, and it can realize the control respectively to each controller, easy to operate, be easy to repair.
Description
Technical field
The present invention relates to the anti-seawater corrosion engineering field of steel structure thing under ocean water, and in particular to marine impressed current anode
Controller, and impressed current cathodic protection system.
Background technology
Large ship and ocean engineering are required for impressed current cathodic protection system to carry out anti-corrosion protection to metal structure.It is existing
It is made up of in the power-supply device of widely used impressed-current protection system transformer and rectifying part；The number of output anode is set
During meter sizing just it has been determined that and each anode output can not be independent regulation；Such as need to increase anode quantity, can only increase whole
Body equipment tricks.In addition, the power-supply device volume now used is also bigger, maintaining is inconvenient, and failure needs to power off
When, can only integrally it power off.For the protection object that surface texture is complicated, due to power anode quantity and the reference electricity used now
Number of poles is less, it is impossible to the component of protection object is obtained effective cathodic polarization, the reference electrode of negligible amounts can not
The potential value of accurate monitoring and protecting body each point.
The content of the invention
The present invention is directed to a kind of marine anodization controller of proposition of problem above, and the controller can be conveniently and accurately
The type of the output quantity size and output signal on anode is controlled, ensures that marine steel member is not corroded.
The technological means that the present invention uses is as follows：
A kind of marine anodization controller, including, processing unit, output unit and local signal given circuit；The local
Signal feeding circuit is used to generate the pre- value signal of setting output；The processing unit includes microcontroller, and the microcontroller is used
Pre- value signal is exported in receiving the setting, and pre- value signal is exported according to the setting of reception and controls the output unit
The value of output quantity；The output unit includes PWM controller, full-bridge converter, voltage and current detection circuit, output feedback
Circuit error detects circuit and over-voltage over-current protection circuit, the input of the PWM controller are defeated with the processing unit
Go out end electrical connection, the processing unit controls the output duty cycle of the PWM controller, the output end of the PWM controller with
The full-bridge converter is connected to control the output of the full-bridge converter, and the output end connection of the full-bridge converter is negative
Carry, the voltage is connected to the PWM controller after being connected with current detection circuit with over-voltage over-current protection circuit and full-bridge becomes
Between the output end of parallel operation, the input of the voltage and current detection circuit is connected to the output end of the full-bridge converter,
The output end of the over-voltage over-current protection circuit is connected in the PWM controller, the output feedback circuit and the mistake
The PWM controller and the output end of the full-bridge converter, the output feedback electricity are parallel to after difference detecting circuit connection
The input on road is connected to the output end of the full-bridge converter, and the output end of the error-detector circuit is connected to the PWM
On controller；
Further, the processing unit also includes analog-digital converter and digital analog converter；The analog-digital converter is used for
By the digital quantity for setting output pre-value and being converted into the microcontroller and can receiving and handle of analog quantity；The digital analog converter
Digital quantity signal for the microcontroller to be exported is converted into the analog signal for controlling the PWM controller；
Further, the local signal given circuit is pre- threshold voltage given circuit, and the output pre-value that sets is sets
Determine voltage output pre-value, the output end output of the full-bridge converter is constant pressure value, and the output feedback circuit is that voltage is anti-
Current feed circuit, the error-detector circuit are that voltage error detects circuit；
Further, the local signal given circuit is pre- threshold voltage given circuit, and the output pre-value that sets is sets
Determine electric current output pre-value, the output end output of the full-bridge converter is constant current value, and the output feedback circuit is that electric current is anti-
Current feed circuit, the error-detector circuit are that current error detects circuit；
Further, the local signal given circuit is pre- threshold voltage given circuit and pre-value given value of current circuit, institute
State and set output pre-value as setting voltage output pre-value and setting electric current output pre-value, the output end output of the full-bridge converter
For constant pressure value or constant current value, the output feedback circuit is current feedback circuit and voltage feedback circuit, the marine anode
Controller also includes operational mode selection circuit, and the operational mode selection circuit is including setting output pre-value switching circuit and instead
Present mode selection circuit, the setting output pre-value switching circuit is used for optionally will the pre- threshold voltage given circuit and in advance
Value given value of current circuit output end is connected in the processing unit, and it is anti-that the feedback model selection circuit is connected to the output
Between current feed circuit and error-detector circuit, the feedback model selection circuit be used for optionally by the current feedback circuit and
The voltage feedback circuit is connected to the error-detector circuit, and the error-detector circuit is that current error detects circuit and electricity
Hold up difference detecting circuit；
Further, in addition to processing unit the communication interface being connected, the communication interface and external Industry Control
Computer is attached, and the industrial control computer is communicated by the communication interface with the processing unit；
Further, setting the method for the setting output pre-value includes local setting and remote setting, the marine sun
Pole controller also includes the local remote control switching circuit that selection is carried out to local setting and remote setting and local remote control selection is opened
Close；
A kind of impressed current cathodic protection system, including marine anodization controller of the present invention, multiple sacrificial anodes,
Multiple reference electrodes, potential acquisition card and industrial control computer；The marine anodization controller and sacrificial anode electricity
It is connected to connect for adopting with the reference electrode electrical to the sacrificial anode output current or voltage, the potential acquisition card
Collect the current potential on the reference electrode, the industrial control computer and the potential acquisition card and the marine anodization controller
Connection, the electrical potential information that the industrial control computer gathers according to the potential acquisition card control the marine anodization controller
Output；
Further, the marine anodization controller has multiple, and the multiple marine anodization controller is respectively by logical
Letter interface is connected in parallel with the industrial control computer.
Compared with the prior art, marine anodization controller of the present invention has the advantages that：1st, the anode control
Device processed passes through processing unit, PWM controller, full-bridge converter, voltage and current detection circuit, output feedback circuit, error
The structure such as circuit and over-voltage over-current protection circuit is detected, effectively and the electricity being output on sacrificial anode can be accurately controlled
Stream or voltage；2nd, the anodization controller includes setting output pre-value switching circuit and feedback model selection circuit, can be easily
Need to switch simultaneously output voltage or electric current according to user；3rd, present invention additionally comprises communication interface, communication interface can with it is external
Industrial control computer is connected and communicated, it is possible to achieve the remote control of the controller；4th, there is the marine anodic control of the present invention
The current cathodic protection system of device, the protection system can easily realize the anticorrosive protection of offshore steel element structure；5th, it is electric
Stream cathodic protection system has multiple marine anodization controllers, and multiple anodization controllers pass through communication interface and Industry Control respectively
Computer connects, and so can easily increase and reduce the quantity for being connected to industrial control computer Anodic controller, fits
In on the marine steel member applied in different scales, while each anodization controller works independently again, works as one or more
Anodization controller goes wrong when needing repairing or changing, it is only necessary to problematic anodization controller is changed or repairs, without
Want cathodic protection system integrally to power off to be repaired or replaced, that is, save the overall work that cost in turn ensure that the device
Energy.
Brief description of the drawings
Fig. 1 is the structured flowchart of the marine anodization controller of the present invention；
Fig. 2 is the first embodiment of the impressed current cathodic protection system of the present invention；
Fig. 3 is second of embodiment of the impressed current cathodic protection system of the present invention.
In figure：1st, processing unit, 2, PWM controller, 3, full-bridge converter, 4, voltage and current detection circuit, 5, output
Measure feedback circuit, 6, operational mode selection circuit, 7, over-voltage over-current protection circuit, 8, error-detector circuit, 9, local remote control cuts
Change circuit, 10, industrial control computer, 11, microcontroller, 12, analog-digital converter, 13, digital analog converter, 14, local signal
Given circuit, 15, local remote control selecting switch.
Embodiment
Embodiment 1
As shown in figure 1, a kind of marine anodization controller, including, the given electricity of processing unit 1, output unit and local signal
Road 14.Local signal given circuit 14 is used to generate the pre- value signal of setting output, and processing unit 1 is used to receive setting output in advance
Value, and according to the value for setting output pre-value and controlling the output quantity of the output unit of reception.Processing unit 1 includes microcontroller
11, output unit includes PWM controller 2, full-bridge converter 3, voltage and current detection circuit 4, output feedback circuit 5, missed
Difference detecting circuit 8 and over-voltage over-current protection circuit 7.In the present embodiment, the output end of the full-bridge converter 3 of output unit connects
Connect sacrificial anode load, full-bridge converter 3 provides constant voltage to sacrificial anode load, therefore processing unit 1 receives
Set output pre-value and output voltage pre-value set by local signal given circuit 14 set desired output end and can export
The value of voltage, local signal given circuit 14 are pre- threshold voltage given circuit, and the pre- threshold voltage given circuit is made up of potentiometer,
Regulation potentiometer, which can be adjusted, is input to signal magnitude in processing unit 1, and output feedback circuit 5 is voltage feedback circuit, by mistake
Difference detecting circuit 8 is that voltage error detects circuit.The microcontroller 11 of processing unit 1 can be integrated with analog-to-digital conversion module and
The control chip of D/A converter module, analog-to-digital conversion module will be converted into numeral with the setting output voltage pre-value of analog input
It is input to after amount in microcontroller 11, microcontroller 11 exports certain data signal according to the output voltage pre-value of reception, and
The analog signal for controlling PWM controller is generated by D/A converter module, the analog signal is input in PWM controller 2,
Under the driving of the analog signal, full-bridge converter drive signal of the output of PWM controller 2 with certain dutycycle is used to drive
Full-bridge converter 3 is operated so that full-bridge converter 3 exports certain magnitude of voltage.The output end connection of full-bridge converter 3 is sacrificial
Domestic animal plate-load is used to provide it certain voltage so as to protect the marine steel member being connected with sacrificial anode not to be corroded.
Voltage and current detection circuit 4 and over-voltage over-current protection are also associated between the output end and PWM controller 2 of full-bridge converter 3
Circuit 7.The input of voltage and current detection circuit 4 is connected to electricity of the output end for detection output of full-bridge converter 3
Pressure value, voltage are connected with the output end of current detection circuit 4 with over-voltage over-current protection circuit 7, over-voltage over-current protection circuit 7 it is defeated
Go out end to be connected in PWM controller 2, when voltage and current detection circuit 4 detect that the output voltage output of full-bridge converter 3 is super
After crossing certain numerical value, over-voltage over-current protection circuit 7 is operated the protection realized to output circuit, real for the ease of staff
When watch and understand the size of actual output voltage, be also associated with voltmeter and ammeter on voltage and current detection circuit 4.
Output feedback circuit 5 and error-detector circuit 8 are also associated between the output end and PWM controller 2 of full-bridge converter 3, it is defeated
Output feedback circuit 5 is voltage feedback circuit, and error-detector circuit 8 is that voltage error detects circuit, voltage feedback circuit it is defeated
Enter end and be connected to the output end of full-bridge converter 3 to be used to measuring the magnitude of voltage of output end, voltage feedback circuit is by full-bridge converter 3
Output end control source to voltage error detect circuit, voltage error detection circuit output end be connected to PWM controller 2
On, detecting circuit by voltage feedback circuit and voltage error can be in real time by the electricity of the output end output of full-bridge converter 3
Pressure value is fed back in PWM controller 2, and then adjusts the output duty cycle of PWM controller 2, so as to stablize the defeated of full-bridge converter 3
Go out to hold output voltage.
The microcontroller 11 of the present invention can use and be integrated with digital-to-analogue, the control chip of analog-to-digital conversion module, using integrated
The control chip for having digital-to-analogue, analog-to-digital conversion module convenient design, layout, can be produced and processed and manufactured with simplified control circuit.This
The microcontroller 11 of invention can also be used without digital-to-analogue, the control chip of analog-to-digital conversion module, but by the control
Increase on chip accordingly with analog-digital converter 12, digital analog converter 13 for carrying out the conversion of digital and analog signaling,
Control accuracy can be increased using the peripheral module with corresponding function.
Further, marine anodization controller of the invention also includes the communication interface being connected with processing unit, and communication connects
Mouth can use RS485 communication interfaces.As shown in fig. 1, in the present embodiment, the setting for setting output quantity size exports
What the local signal given circuit 14 of pre-value can be produces certain magnitude of voltage by potentiometer, then the electricity of potentiometer output
Pressure value is input in microcontroller by analog-digital converter 12 and realizes local control.Setting for setting output quantity size exports
Pre-value can also directly carry out remote setting, external industrial control computer 10 by external industrial control computer 10
Remote control is realized by the communication that carries out of communication interface and processing unit 1, industrial control computer 10 can be connect by communication
The setting that mouth directly transmits for setting output quantity size exports pre-value, and processing unit 1 receives industrial control computer 10 and sent out
The signal that send simultaneously is exported accordingly.
When the marine anodization controller has local control and two kinds of control modes of remote control, the marine anodic control
Device also includes being used to select local control or the locally remote of remote control to control switching circuit 9 and local far control selecting switch 15.This
Ground far control switching circuit mainly by a relay group into.When being operated in local control model, relay disconnects, and voltage gives
It is sent to analog-digital converter.Now, the output valve of microcontroller 1 is by the given control of this ground voltage.When module is operated in remote control control
During pattern, relay adhesive, voltage is given to be disconnected with analog-digital converter.Now, the output valve of microcontroller is by Industry Control meter
The instruction control that calculation machine is sent.
Embodiment 2
Marine anodization controller processing unit 1, output unit and local signal given circuit 14 in example 2.Place
Reason unit 1 includes microcontroller 11, output unit including PWM controller 2, full-bridge converter 3, voltage and current detection circuit 4,
Output feedback circuit 5, error-detector circuit 8 and over-voltage over-current protection circuit 7.In this embodiment, microcontroller 11,
PWM controller 2, full-bridge converter 3, voltage and current detection circuit 4 and over-voltage over-current protection circuit 7 in embodiment 1 with tying
Structure and connected mode are identical.
The difference of embodiment 2 and embodiment 1 is that the output end output of marine anodization controller in embodiment 1 is
Constant magnitude of voltage, accordingly, local signal given circuit 14 are pre- threshold voltage given circuit, its export for magnitude of voltage, use
Pre-value is exported to set voltage output pre-value in setting setting for output quantity size, and output feedback circuit 5 is electric for Voltage Feedback
Road, error-detector circuit 8 are that voltage error detects circuit, and detecting circuit stability by voltage feedback circuit and voltage error exports
The magnitude of voltage at end.In example 2, the output end output of marine anodization controller is constant current value, correspondingly, local letter
Number given circuit 14 is the pre-value given value of current circuit with potentiometer structure, and processing unit 1 is input to by potentiometer regulation
In signal magnitude, the output of the marine anodization controller is constant current value, for set output quantity size setting export pre-value
Pre-value is exported for setting electric current, output feedback circuit 5 is current feedback circuit, and error-detector circuit 8 detects for current error
Circuit, the current value of circuit stability output end is detected by current feedback circuit and current error.
In the marine anodization controller of the embodiment, it can also include being used for the communication interface for realizing remote control, with
And the local remote control switching circuit 9 of selection and local remote control selecting switch 15 are carried out to local control and remote control for realizing
For carrying out the model selection of local and remote control.
Embodiment 3
Marine anodization controller processing unit 1, output unit and local signal given circuit 14 in embodiment 3.Place
Reason unit 1 includes microcontroller 11, output unit including PWM controller 2, full-bridge converter 3, voltage and current detection circuit 4,
Output feedback circuit 5, error-detector circuit 8 and over-voltage over-current protection circuit 7.In this embodiment, processing unit 1 is micro-
Controller 11, the PWM controller 2 of output unit, full-bridge converter 3, voltage and current detection circuit 4, output feedback circuit
5th, in the position between error-detector circuit 8 and over-voltage over-current protection circuit 7 and annexation and embodiment 1 or embodiment 2
Identical, its difference is, local signal given circuit 14 includes pre- threshold voltage given circuit and pre-value given value of current circuit, in advance
Threshold voltage given circuit and pre-value given value of current circuit are potentiometer structure, and the setting for setting output quantity size exports pre-
Value includes setting voltage output pre-value and setting electric current output pre-value, what the output end of full-bridge converter 3 exported be voltage or
Electric current, output feedback circuit 5 include voltage feedback circuit and current feedback circuit, and error-detector circuit 8 includes voltage error
Detect circuit and current error detection circuit.Marine anodization controller also includes operational mode selection circuit 6, operational mode selection
Circuit 6 includes setting output pre-value switching circuit and feedback model selection circuit, and setting output pre-value switching circuit is used to select
Property pre- threshold voltage given circuit and pre-value given value of current circuit output end are connected in the processing unit 1, feedback model
Selection circuit is connected between output feedback circuit 5 and error-detector circuit 8, and feedback model selection circuit is used to optionally to
Current feedback circuit and voltage feedback circuit are connected to error-detector circuit 8, and error-detector circuit 8 is that current error detects circuit
Circuit is detected with voltage error.Current feedback circuit and voltage feedback circuit are corresponding by the magnitude of voltage fed back or current value
It is connected on voltage error detection circuit or current error detection circuit to stablize the magnitude of voltage of output end or current value.Specifically
Ground, operational mode selection circuit 6 are into a part of trigger and relay constitute by multiple triggers with multiple relay groups
Pre-value switching circuit is exported, another part trigger and relay constitute feedback model selection circuit.The given electricity of local signal
Road 14 is respectively used to this ground voltage including two groups of potentiometers and given and local given value of current, and local constant current button and local perseverance
Button is pressed, the potentiometer when pressing local constant current button for local given value of current is connected to processing unit 1 by trigger,
The relay for control electric current feedback closes the relay disconnection of control voltage feedback in the presence of trigger simultaneously, by electricity
Current feedback circuit is connected in error-detector circuit and by voltage feedback circuit with being disconnected with error-detector circuit, and then realizes sea
The constant current output of Anodic controller.When pressing local constant pressure button, local constant current button disconnects, by what is given for constant pressure
Potentiometer is connected in processing unit by trigger, while in the presence of trigger, the relay for control electric current feedback
Device disconnects, and for the relay closure of control voltage feedback, voltage feedback circuit is connected into error-detector circuit, realizes control
The constant pressure output of device.Can be easily according to the need of client by setting output pre-value switching circuit and feedback model selection circuit
The type of the output quantity of change full-bridge converter output end is sought, realizes the switching between constant pressure output and constant current output.
The marine anodization controller also includes the local remote control switching circuit 9 that selection is carried out to local control and remote control
Model selection with local remote control selecting switch 15 for the local and remote control of progress.Locally remote control switching circuit 9 is also
It is made up of relay and trigger, trigger is controlled by microcontroller.
Further, in this embodiment, the communication interface in addition to processing unit 1 being connected, can by communication interface
To realize the remote control marine anodization controller.Industrial control computer is carried out by communication interface and marine anodization controller
Communication, industrial control computer can (local constant current gives with the operational mode of the marine anodization controller of the remote control present invention
Or local constant pressure gives), selection (the local control of output valve (voltage of output end output or the size of electric current) and control mode
System or remote control), while can monitor and show in real time that the working condition of the controller (is currently at local control still
Remote control, current output quantity are voltage or electric current) and output valve (voltage or the size of current value that currently export).Example
Such as, when industrial control computer inputs local given value of current control command to microcontroller, microcontroller is respectively to local remote
The trigger for controlling switching circuit and operational mode selection circuit exports corresponding signal, the local remote trigger controlled in switching circuit
Control for selecting local hair relay closure, the trigger of operational mode selection circuit controls the relay of local given value of current
Closed with the relay of current feedback, realize local control, and it is electric current to export.When industrial control computer is defeated to microcontroller
When entering remote voltage and giving control command, microcontroller touching to local remote control switching circuit and operational mode selection circuit respectively
Send out device and export corresponding signal, the local remote trigger controlled in switching circuit is controlled for selecting local hair relay to disconnect, transported
The trigger of row mode selection circuit controls the relay of this Voltage Feedback to close, and realizes remote control, and it is voltage to export.
Embodiment 4
As shown in Fig. 2 a kind of impressed current cathodic protection system, including it is marine anodization controller of the present invention, more
Individual sacrificial anode, multiple reference electrodes, potential acquisition card and industrial control computer.Marine anodization controller and sacrificial anode
Electrically connect for sacrificial anode output current or voltage to prevent the marine steel member being connected with sacrificial anode to be corroded, current potential
Capture card is connect for gathering the current potential on reference electrode with reference electrode electrical, and industrial control computer connects with potential acquisition card
Connect, industrial control computer obtains the electrical potential information that gathers on potential acquisition card, industrial control computer by communication interface with
Marine anodization controller connection, and according to the output of the marine anodization controller of information remote control on potential acquisition card.
In this embodiment, the current potential gathered on the potential acquisition card that can also be obtained according to industrial control computer is believed
Breath, the local output for controlling marine anodization controller.
Embodiment 5
As shown in figure 3, a kind of impressed current cathodic protection system, including multiple marine anodic controls of the present invention
Device, multiple sacrificial anodes, multiple reference electrodes, potential acquisition card and industrial control computer.Multiple marine anodization controllers
Electrically connected respectively with sacrificial anode for preventing the offshore steel being connected with sacrificial anode to sacrificial anode output current or voltage
Component is corroded, and potential acquisition card is connect for gathering the current potential on reference electrode, industrial control computer with reference electrode electrical
It is connected with potential acquisition card, industrial control computer obtains the electrical potential information of potential acquisition card collection, and industrial control computer leads to
Communication interface is crossed to be connected respectively with multiple marine anodization controllers, what industrial control computer can obtain according to potential acquisition card
The output of the electrical potential information remote control sea anodization controller of reference electrode.
In this embodiment, the current potential gathered on the potential acquisition card that can also be obtained according to industrial control computer is believed
Breath, the respectively local output for controlling each marine anodization controller.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (9)
- A kind of 1. marine anodization controller, it is characterised in that：Including the given electricity of processing unit (1), output unit and local signal Road (14)；The local signal given circuit (14) is used to generate the pre- value signal of setting output；The processing unit (1) includes microcontroller (11), and the microcontroller (11) is used to receive the setting output pre-value Signal, and the value of the output quantity according to the setting of the reception output pre- value signal control output unit；It is anti-that the output unit includes PWM controller (2), full-bridge converter (3), voltage and current detection circuit (4), output quantity Current feed circuit (5), error-detector circuit (8) and over-voltage over-current protection circuit (7), the input of the PWM controller (2) and institute The output end electrical connection of processing unit (1) is stated, the processing unit (1) controls the output duty cycle of the PWM controller (2), The output end of the PWM controller (2) is connected to control the defeated of the full-bridge converter (3) with the full-bridge converter (3) Go out, the output end connection load of the full-bridge converter (3), the voltage and current detection circuit (4) and over-voltage over-current protection It is connected to after circuit (7) series connection between the PWM controller (2) and the output end of full-bridge converter (3), the voltage and electric current The input of detection circuit (4) is connected to the output end of the full-bridge converter (3), the over-voltage over-current protection circuit (7) Output end is connected in the PWM controller (2), and the output feedback circuit (5) is connected with the error-detector circuit (8) Be parallel to the PWM controller (2) and the output end of the full-bridge converter (3) afterwards, the output feedback circuit (5) it is defeated Enter the output end that end is connected to the full-bridge converter (3), the output end of the error-detector circuit (8) is connected to the PWM On controller (2).
- 2. marine anodization controller according to claim 1, it is characterised in that：The processing unit (1) also includes modulus Converter (12) and digital analog converter (13)；The analog-digital converter (12) can connect for the setting output pre-value of analog quantity to be converted into the microcontroller (11) The digital quantity received and handled；The digital analog converter (13) is used to be converted into being used to control institute by the digital quantity signal of the microcontroller (11) output State the analog signal of PWM controller (2).
- 3. marine anodization controller according to claim 2, it is characterised in that：The local signal given circuit (14) is Pre- threshold voltage given circuit, the output pre-value that sets is sets voltage output pre-value, the output end of the full-bridge converter (3) It is voltage feedback circuit to export as constant pressure value, the output feedback circuit (5), and the error-detector circuit (8) is missed for voltage Difference detecting circuit.
- 4. marine anodization controller according to claim 2, it is characterised in that：The local signal given circuit (14) is Pre-value given value of current circuit, the output pre-value that sets export pre-value, the output end of the full-bridge converter (3) as setting electric current It is current feedback circuit to export as constant current value, the output feedback circuit (5), and the error-detector circuit (8) is missed for electric current Difference detecting circuit.
- 5. marine anodization controller according to claim 2, it is characterised in that：The local signal given circuit (14) is Pre- threshold voltage given circuit and pre-value given value of current circuit, the output pre-value that sets is setting voltage output pre-value and setting electricity Stream output pre-value, the output end output of the full-bridge converter (3) is constant pressure value or constant current value, the output feedback circuit (5) it is current feedback circuit and voltage feedback circuit, the marine anodization controller also includes operational mode selection circuit (6), The operational mode selection circuit (6) includes setting output pre-value switching circuit and feedback model selection circuit, and the setting is defeated Go out pre-value switching circuit to be used to optionally connect the pre- threshold voltage given circuit with pre-value given value of current circuit output end Into the processing unit (1), the feedback model selection circuit is connected to the output feedback circuit (5) and error-detecting electricity Between road (8), the feedback model selection circuit is used for the current feedback circuit and Voltage Feedback electricity optionally Road is connected to the error-detector circuit (8), and the error-detector circuit (8) is that current error detects circuit and voltage error inspection Slowdown monitoring circuit.
- 6. marine anodization controller according to any one of claim 1 to 5, it is characterised in that：Also include single with processing The communication interface of first (1) connection, the communication interface are attached with external industrial control computer (10), the industry control Computer (10) processed is communicated by the communication interface with the processing unit (1).
- 7. marine anodization controller according to claim 5, it is characterised in that：The method for setting the setting output pre-value Including local setting and remote setting, the marine anodization controller also includes carrying out selection to local setting and remote setting Local remote control switching circuit (9) and local remote control selecting switch (15).
- A kind of 8. impressed current cathodic protection system, it is characterised in that：Including the sea any one of claim 1 to 7 Anodization controller, multiple sacrificial anodes, multiple reference electrodes, potential acquisition card and industrial control computer；The marine sun Pole controller is electrically connected with the sacrificial anode for the sacrificial anode output current or voltage, the potential acquisition card with The reference electrode electrical is connect for gathering the current potential on the reference electrode, and the industrial control computer is adopted with the current potential Truck connects with the marine anodization controller, and the current potential that the industrial control computer gathers according to the potential acquisition card is believed Breath controls the output of the marine anodization controller.
- 9. impressed current cathodic protection system according to claim 8, it is characterised in that：The marine anodic control utensil Have multiple, the multiple marine anodization controller is connected in parallel by communication interface and the industrial control computer respectively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951154.2A CN107699903A (en) | 2017-10-13 | 2017-10-13 | A kind of marine anodization controller and impressed current cathodic protection system |
| PCT/CN2018/075193 WO2019071885A1 (en) | 2017-10-13 | 2018-02-04 | Marine anode controller and impressed current cathodic protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951154.2A CN107699903A (en) | 2017-10-13 | 2017-10-13 | A kind of marine anodization controller and impressed current cathodic protection system |
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| Publication Number | Publication Date |
|---|---|
| CN107699903A true CN107699903A (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710951154.2A Withdrawn CN107699903A (en) | 2017-10-13 | 2017-10-13 | A kind of marine anodization controller and impressed current cathodic protection system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107699903A (en) |
| WO (1) | WO2019071885A1 (en) |
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| CN112760653A (en) * | 2019-11-01 | 2021-05-07 | 中国石油天然气股份有限公司 | Current control method and device in cathodic protection system |
| CN114351152A (en) * | 2021-12-07 | 2022-04-15 | 海洋石油工程股份有限公司 | String-shaped sacrificial anode applied to marine steel structure |
| CN114450435A (en) * | 2019-10-03 | 2022-05-06 | 沃尔沃遍达公司 | Ocean salinity measuring device and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110083A (en) * | 2022-05-27 | 2022-09-27 | 国家石油天然气管网集团有限公司 | Long-distance pipeline instantaneous corrosion rate testing device based on cathodic protection |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019071885A1 (en) | 2019-04-18 |
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