Marine anode controller and impressed current cathodic protection system

A controller and microcontroller technology, applied in the field of impressed current cathodic protection system and marine impressed current anode controller, can solve the problems of inconvenient maintenance, large size of power supply equipment, and inability to independently adjust anode output, etc. Overall work performance, cost saving effect

Inactive Publication Date: 2018-02-16
DALIAN KINGMILE ANTICORROSION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power supply equipment of the widely used impressed current protection system is composed of a transformer and a rectifier; the number of output anodes has been determined when the design is finalized, and the output of each anode cannot be adjusted independently; if the number of anodes needs to be increased, it can only be increased Overall equipment sets
In addition, the current power supply equipment is relatively large in size, and it is inconvenient to maintain.
For protected objects with complex surface structures, due to the small number of power supply anodes and reference electrodes currently used, the components of the protected object cannot be effectively cathodically polarized, and the small number of reference electrodes cannot accurately monitor and protect The potential value of each point of the body

Method used

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  • Marine anode controller and impressed current cathodic protection system
  • Marine anode controller and impressed current cathodic protection system
  • Marine anode controller and impressed current cathodic protection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 As shown, a marine anode controller includes a processing unit 1 , an output unit and a local signal given circuit 14 . The local signal given circuit 14 is used to generate a set output preset value signal, and the processing unit 1 is used to receive the set output preset value, and control the output value of the output unit according to the received set output preset value. The processing unit 1 includes a microcontroller 11 , and the output unit includes a PWM controller 2 , a full-bridge converter 3 , a voltage and current detection circuit 4 , an output feedback circuit 5 , an error detection circuit 8 and an overvoltage and overcurrent protection circuit 7 . In this embodiment, the output terminal of the full-bridge converter 3 of the output unit is connected to the sacrificial anode load, and the full-bridge converter 3 provides a constant voltage to the sacrificial anode load, so the preset output value received by the processing unit 1 is det...

Embodiment 2

[0025] The marine anode controller processing unit 1 , output unit and local signal given circuit 14 in Embodiment 2. The processing unit 1 includes a microcontroller 11 , and the output unit includes a PWM controller 2 , a full-bridge converter 3 , a voltage and current detection circuit 4 , an output feedback circuit 5 , an error detection circuit 8 and an overvoltage and overcurrent protection circuit 7 . In this embodiment, the microcontroller 11 , PWM controller 2 , full-bridge converter 3 , voltage and current detection circuit 4 , and overvoltage and overcurrent protection circuit 7 are the same in structure and connection as in Embodiment 1.

[0026] The difference between embodiment 2 and embodiment 1 is that in embodiment 1, the output terminal of the offshore anode controller outputs a constant voltage value, and correspondingly, the local signal given circuit 14 is a pre-value voltage given circuit, and its output is the voltage value, the preset output value used ...

Embodiment 3

[0029] In Embodiment 3, the offshore anode controller processing unit 1 , output unit and local signal given circuit 14 . The processing unit 1 includes a microcontroller 11 , and the output unit includes a PWM controller 2 , a full-bridge converter 3 , a voltage and current detection circuit 4 , an output feedback circuit 5 , an error detection circuit 8 and an overvoltage and overcurrent protection circuit 7 . In this embodiment, the microcontroller 11 of the processing unit 1, the PWM controller 2 of the output unit, the full-bridge converter 3, the voltage and current detection circuit 4, the output feedback circuit 5, the error detection circuit 8 and the overvoltage The position and connection relationship between the current protection circuits 7 are the same as in Embodiment 1 or Embodiment 2, the difference is that the local signal given circuit 14 includes a preset value voltage given circuit and a preset value current given circuit, and the preset value Both the vol...

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PUM

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Abstract

The invention discloses a marine anode controller. The marine anode controller comprises a processing unit, an output unit and a local signal given circuit; the processing unit comprises a microcontroller; the output unit comprises a PWM controller, a full-bridge converter, a voltage and current detection circuit, an output quantity feedback circuit, an error detection circuit and an overvoltage and overcurrent protection circuit; the output quantity feedback circuit comprises a voltage feedback circuit and a current feedback circuit, and the error detection circuit comprises a voltage error detection circuit and a current error detection circuit; and the controller is further provided with a local remote control switching circuit and the local signal given circuit. According to the marineanode controller, the type and the amplitude of signals output to a sacrificial anode can be conveniently switched and changed according to requirements of users. Meanwhile, the invention further provides an impressed current cathodic protection system, the system is composed of a plurality of the anode controllers connected by an industrial computer, the controllers can be controlled separately,the operation is convenient, and the maintenance is convenient.

Description

technical field [0001] The invention relates to the field of anti-seawater corrosion engineering of marine underwater steel structures, in particular to an offshore impressed current anode controller and an impressed current cathodic protection system. Background technique [0002] Large ships and marine engineering require impressed current cathodic protection systems to protect metal structures against corrosion. The power supply equipment of the widely used impressed current protection system is composed of a transformer and a rectifier; the number of output anodes has been determined when the design is finalized, and the output of each anode cannot be adjusted independently; if the number of anodes needs to be increased, it can only be increased The overall number of sets of equipment. In addition, the currently used power supply equipment is relatively large in size and inconvenient to maintain. When a fault occurs and the power needs to be cut off, the power must be c...

Claims

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Application Information

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IPC IPC(8): C23F13/22C23F13/06
CPCC23F13/06C23F13/22
Inventor 宋世德刘磊熊华燕朱东旭
Owner DALIAN KINGMILE ANTICORROSION TECH CO LTD
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