Cathode protection ultra-low voltage frequency conversion control device and control method

Abstract

The invention discloses a cathode protection ultra-low voltage frequency conversion control device and method, and the device comprises a server and at least one potentiometer which is used for collecting the potential related parameters of protected cathode metal, transmitting the potential related parameters to the server, receiving the control parameters transmitted by the server, and transmitting the control parameters to the server. Adjusting the potential of the protected cathode metal to be in a preset cathode protection potential interval according to the control parameter; and the server obtains control parameters according to the potential related parameters and a preset relationship between the potential related parameters and the control parameters, and sends the control parameters to the corresponding potentiometers. According to the invention, integration of data acquisition and impressed current protection of the protected cathode metal can be realized, the potentiometers can monitor potential related parameters of the protected cathode metal in real time, real-time dynamic frequency conversion adjustment can be realized, one server can control a plurality of potentiometers, lightweight integrated design is realized, the construction is convenient, and the cost is low. Real-time data acquisition is realized, and meanwhile, a corresponding protection effect on an insured unit is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of metal corrosion protection, in particular to a cathodic protection ultra-low voltage variable frequency control device and a control method thereof. BACKGROUND

[0002] Impressed current cathodic protection, also known as forced current cathodic protection. Impressed current cathodic protection is to change the potential of the surrounding environment by an external power source, so that the potential of the equipment and pipeline to be protected is always lower than that of the surrounding environment, so as to become the cathode in the whole environment. Thus, the equipment to be protected will not corrode due to the loss of electrons.

[0003] At present, the market is all separate individual cathodic protection data acquisition equipment, separate constant potential shift protection device or sacrificial anode protection equipment, and the equipment only acquires data or cathodic protection device. The construction of the voltage regulation station is too high in cost, difficult to construct, cannot realize automatic adjustment, and will cause trouble in installation and replacement and maintenance. The cathodic protection data acquisition and cathodic protection potential automatic adjustment are not achieved. SUMMARY

[0004] The present application mainly solves the technical problems existing in the prior art, thereby providing a cathodic protection control device and a control method thereof, which can monitor the potential related parameters of the protected cathodic metal in real time and adjust the protected cathodic metal to be in a standard cathodic protection potential interval at any time.

[0005] The above technical problems of the present application are mainly solved by the following technical solutions:

[0006] The cathodic protection ultra-low voltage variable frequency control device of the present application comprises the following components: At least one potential instrument is used to acquire the potential related parameters of the protected cathodic metal, send the potential related parameters to a server, receive the control parameters sent by the server, and adjust the potential of the protected cathodic metal to be in a preset cathodic protection potential interval according to the control parameters; The server receives the potential related parameters, obtains the control parameters according to the potential related parameters and a preset potential related parameter relationship, and sends the control parameters to the corresponding potential instrument.

[0007] Optionally, the potential related parameters include the off potential of the protected cathodic metal, the on potential of the protected cathodic metal, the natural potential of the protected cathodic metal, the direct current of the protected cathodic metal, the alternating current of the protected cathodic metal, and / or the alternating voltage of the protected cathodic metal.

[0008] Optionally, the potential instrument comprises the following components: A data acquisition module is configured to receive the potential-related parameters and send the potential-related parameters to the controller. A communication module is configured to send the potential-related parameters to the server and receive the control parameters. The controller receives and transmits the potential-related parameters, receives the control parameters, and controls the constant current and constant voltage module according to the control parameters. The constant current and constant voltage module is configured to adjust the potential parameters of the anode ground bed, so as to adjust the potential of the protected cathode metal to be within the preset cathode protection potential interval. The data acquisition module, the communication module, and the constant current and constant voltage module are connected to the controller.

[0009] Optionally, the potential instrument further comprises a power management module, a battery, and a solar panel; the solar panel is connected to the controller through the battery and the power management module.

[0010] Optionally, the potential instrument further comprises a display screen and a GPS module connected to the controller.

[0011] The present disclosure also provides a cathode protection ultra-low voltage variable frequency control method, which comprises the cathode protection control device, and the control method comprises: S1. At least one potential instrument collects potential-related parameters of a protected cathode metal, and sends the potential-related parameters to a server. S2. The server compares and calculates the potential-related parameters of the protected cathode metal collected and sent by the potential instrument with preset potential-related parameters of the protected cathode metal in the server, obtains relevant control parameters according to whether the calculation result is within the preset protection value interval or is higher or lower than the preset protection value interval, and sends the control parameters to the corresponding potential instrument. S3. The potential instrument receives the control parameters sent by the server, and adjusts the potential of the protected cathode metal to be within the preset cathode protection potential interval according to the control parameters.

[0012] Optionally, the server has preset the power-on potential, the power-off potential, the natural potential, and / or the cathode protection potential of the protected cathode metal as the preset protection value interval before the step S1.

[0013] Optionally, in S2, after receiving the potential-related parameters of the protected cathode metal, the server obtains the control parameters of the protected cathode metal by comparing and calculating the preset potential-related parameters with the received potential-related parameters of the protected cathode metal, and sends the corrected control parameters to the corresponding potential instrument.

[0014] Optionally, the control parameter comprises a de-energized potential of the protected cathode metal, an energized potential of the protected cathode metal, a natural potential of the protected cathode metal, a direct current of the protected cathode metal, an alternating current of the protected cathode metal, and / or an alternating voltage of the protected cathode metal.

[0015] Optionally, in the step S2, the control parameter comprises a plurality of parameters, which are respectively sent to the potential instrument and the adjacent potential instrument; and in the step S3, the anode bed controlled by the plurality of potential instruments is adjusted according to the control parameter, so that the potential of the protected cathode metal is in the preset cathode protection potential interval.

[0016] The present disclosure sets the server and the plurality of potential instruments, the potential instrument can collect the potential related parameters of the protected cathode metal, the potential related parameters are sent to the server, the server obtains the control parameter according to the relationship between the potential related parameters and the preset potential related parameters and the control parameter, and the control parameter is sent to the corresponding potential instrument, and the potential instrument adjusts the potential of the protected cathode metal in the preset cathode protection potential interval according to the control parameter;

[0017] The potential instrument device can realize data acquisition and external current protection of the protected cathode metal, the potential instrument can monitor the potential related parameters of the protected cathode metal in real time, real-time dynamic frequency adjustment can be realized, one server can control multiple potential instruments, the potential related parameters of different positions of the equipment or the pipeline can be monitored, and a certain potential instrument can be controlled and accepted by a certain potential instrument to adjust and accept the signal of a certain potential instrument to cooperate with multiple potential instruments to adjust the potential. The present device can replace the sacrificial anode method and the forced current method, ensures that the cathode protection potential of the protected unit is in the standard cathode protection potential interval, realizes light-weight integrated design, is convenient for construction, and has low cost. Real-time data acquisition is realized, and the corresponding protection effect is achieved on the protected unit. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0019] Figure 1 is the potential related parameter of the protected cathode metal preset in the server Figure 2 is a structural schematic diagram of the cathode protection ultra-low voltage frequency conversion control device of the present application; Figure 3 is a structural block diagram of the potential instrument in the present application; Figure 4 is a method flow chart of the cathodic protection control method in the application. DETAILED DESCRIPTION

[0020] The preferred embodiments of the application are described in detail below with reference to the accompanying drawings, so that the advantages and features of the application can be more easily understood by those skilled in the art, and the protection scope of the application can be more clearly defined.

[0021] Referring to Figure 1 As shown in the figure, the server presets the potential related parameters of the protected cathode metal, and the server obtains the relevant control parameters by comparing and calculating the potential related parameters of the protected cathode metal collected and sent by the potential instrument with the preset potential related parameters of the protected cathode metal in the server, and determines whether the parameter value is in the preset protection value interval or is higher or lower than the preset potential value of the protected cathode metal, and then sends the control parameters to the corresponding potential instrument;

[0022] Referring to Figure 2 As shown in the figure, the cathodic protection ultra-low voltage frequency conversion control device provided by the application comprises a server B and at least one potential instrument A, wherein each potential instrument A can be connected to the server B in a wired or wireless manner;

[0023] The potential instrument A is used to collect the potential related parameters of the protected cathode metal C, send the potential related parameters to the server B, receive the control parameters sent by the server B, and adjust the potential of the protected cathode metal C to be in the preset cathodic protection potential interval according to the control parameters.

[0024] When the power supply is convenient, the power supply of the potential instrument A can adopt an external power grid power supply; when the power supply is not convenient, a solar panel can be used as the power supply.

[0025] When the protected cathode metal C is equipment, multiple potential instruments A can be used to collect the potential related parameters around the equipment; when the protected cathode metal C is a pipeline, the potential instruments A can be arranged in sections, one for every interval, to collect the potential related parameters at different positions of the pipeline.

[0026] The potential related parameters include the off-power potential of the protected cathode metal C, the on-power potential of the protected cathode metal, the natural potential of the protected cathode metal, the direct current of the protected cathode metal, the alternating current of the protected cathode metal, and / or the alternating voltage of the protected cathode metal; and can also include some fixed parameters, such as the soil resistivity of the detection position, the distance between the control end of the potential instrument A and the protected cathode metal C, etc.

[0027] The server B receives the potential related parameters, obtains the control parameter according to the preset relationship between the potential related parameters and the control parameter, and sends the control parameter to the corresponding potential instrument A.

[0028] The relationship between the potential related parameters and the preset potential related parameters and the control parameter can be a preset parameter, a formula, a database, a model, etc., which needs to be based on the soil resistivity of the detection position. For example, the server B compares the received potential related parameters with the preset standard cathode protection potential (such as the cathode protection potential is preset to -0.85 to -1.2V), and when the server B judges whether the returned cathode protection potential related data is over-protected or under-protected (over-protected, under-protected, i.e. higher, lower), analyzes and calculates the potential adjustment value required for the over-protected or under-protected cathode protection potential, and forms the control parameter. The distance between the control end on the potential instrument A and the protected cathode metal C, the properties of the pipe material and other parameters are obtained.

[0029] The server B can be set in a central computer room, a control center, etc., which can receive the potential related parameters detected by each potential instrument A; the control parameter can control the voltage, current, etc. output by the potential instrument A;

[0030] In use, first, the standard off potential of the protected cathode metal C and the relationship between the potential related parameters and the control parameter can be set. The potential instrument A collects the potential related parameters of the protected cathode metal C, such as the off potential of the protected cathode metal C, the on potential of the protected cathode metal, the natural potential of the protected cathode metal, the direct current of the protected cathode metal, the alternating current of the protected cathode metal and / or the alternating voltage of the protected cathode metal, and sends the potential related parameters to the server B. The server B obtains the control parameter according to the relationship between the preset potential related parameters and the control parameter, and sends the control parameter to the corresponding potential instrument A. The potential instrument A adjusts the potential of the protected cathode metal C to be in the preset cathode protection potential interval according to the control parameter.

[0031] Referring to Figure 3 In a specific embodiment, the potential instrument A includes a data acquisition module 1, a communication module 2, a controller 3 and a constant voltage and constant current module 4. The data acquisition module 1 is used to receive the potential related parameters and send the potential related parameters to the controller 3; The communication module 2 is used to send the potential related parameters to the server B and receive the control parameter;

[0032] The controller 3 receives and transmits the potential related parameters, receives the control parameter, and controls the constant voltage and constant current module according to the control parameter. The constant voltage and constant current module 4 is used to adjust the potential parameters of the anode bed, so that the potential of the protected cathode metal C is adjusted to be in the preset cathodic protection potential interval.

[0033] In addition, the auxiliary modules can also include a solar panel 5, a battery 6, a power management module 7, a terminal 8, an anode bed 9, a GPS module 10, a display screen 11, a storage module 12, a potential detection probe 13, etc.

[0034] The solar panel 5 is connected with the power management module 7 through the battery 6, and the power management module 7 is connected with the storage module 12, the controller 3 and the data acquisition module 1 respectively. The controller 3 is also connected with the storage module 12, the GPS module 10, the display screen 11, the communication module 2, the constant voltage and constant current module 4 and the data acquisition module 1 respectively. The terminal 8 is also connected with the data acquisition module 1, the constant voltage and constant current module 4, the potential detection probe 13, the protected cathode metal C and the anode bed 9 respectively.

[0035] The solar panel 5 is used to generate electricity, and the electricity is stored in the battery. The power management module 7 is used to adjust the voltage and then supply power to the storage module 12, the controller 3 and the data acquisition module 1. The potential detection probe 13 detects the potential parameters of the to-be-detected position in real time, and the parameters detected at the protected cathode metal C are transmitted to the data acquisition module 1 through the terminal 8. The data acquisition module 1 transmits the collected parameters to the controller 3, and the controller 3 sends the collected potential-related parameters to the server B through the communication module 2. The GPS module is used to locate the position of the potentiostat A, and the display screen is used to view and set the parameters of the potentiostat A. When the communication module receives the control parameters sent by the server B, the controller 3 analyzes the required output current, voltage, etc. according to the control parameters, and then controls the constant voltage and constant current module 4 to input the corresponding current and voltage to the anode bed 9, so as to finally adjust the potential of the protected cathode metal C to be in the preset cathodic protection potential interval. The controller 3 can use a low-power MCU as the main control. The solar panel and the battery are respectively a 12V solar panel and a 12V lithium battery, which supply power to the device.

[0036] Referring to Figure 4 The disclosure also provides a cathodic protection control method, which comprises the above-mentioned cathodic protection control device. The control method comprises the following steps: S1. At least one potentiostat A collects potential-related parameters of the protected cathode metal C, and sends the potential-related parameters to a server B. S2. The server B compares and calculates the potential-related parameters of the protected cathode metal collected and sent by the potentiostat with the preset potential-related parameters of the protected cathode metal in the server, obtains control parameters according to whether the calculation result is in the preset protection value interval or is higher or lower than the preset protection value, and sends the control parameters to the corresponding potentiostat A. S3, the potentiostat A receives the control parameters sent by the server B, and adjusts the potential of the protected cathode metal C to be in the preset cathodic protection potential interval according to the control parameters.

[0037] Specifically, the on potential, off potential and / or natural potential of the protected cathode metal are preset in the server as the preset protection value interval before the step S1, such as the cathodic protection potential is preset to-0.85 to-1.2V.

[0038] In step S2, after receiving the potential related parameters of the protected cathode metal, the server B obtains the control parameters of the protected cathode metal by comparing the preset potential related parameters with the received potential related parameters, and sends the corrected control parameters to the corresponding potentiostat. Specifically, when the server B judges whether the returned cathodic protection potential related data is over-protected or under-protected (over-protected, under-protected-higher, lower), analyzes and calculates the required potential adjustment value of the over-protected or under-protected cathodic protection potential, and forms the control parameters;

[0039] In the S2, after receiving the potential related parameters of the protected cathode metal, the server obtains the control parameters of the protected cathode metal by comparing the preset potential related parameters with the received control parameters, and sends the corrected control parameters to the corresponding potentiostat. The potentiostat A sends adjustment instructions to the constant current and constant voltage module according to the control parameters to realize corresponding potential output.

[0040] In the step S2, the control parameters include multiple, which are sent to the potentiostat and its adjacent potentiostat respectively. In the step S3, the anode bed controlled by multiple potentiostats is adjusted according to the control parameters, so as to control the potential of the protected cathode metal to be in the preset cathodic protection potential interval.

[0041] The present disclosure sets a server and multiple potentiostats. The potentiostat can collect the potential related parameters of the protected cathode metal, send the potential related parameters to the server, obtain the control parameters according to the relationship between the potential related parameters and the preset potential related parameters and the control parameters, send the control parameters to the corresponding potentiostat, and adjust the potential of the protected cathode metal to be in the preset cathodic protection potential interval according to the control parameters.

[0042] The above merely describes the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A cathodic protection ultra-low voltage variable frequency control device, characterized in that, The cathode protection control device comprises the following components: at least one potential instrument for collecting potential-related parameters of a protected cathode metal, sending the potential-related parameters to a server, receiving control parameters sent by the server, and adjusting the potential of the protected cathode metal to be within a preset cathode protection potential interval according to the control parameters; a server for receiving the potential-related parameters, obtaining control parameters according to a preset relationship between the potential-related parameters and the control parameters, and sending the control parameters to the corresponding potential instrument.

2. The cathodic protection control device of claim 1, wherein, The potential-related parameters comprise the open-circuit potential of the protected cathode metal, the on-circuit potential of the protected cathode metal, the natural potential of the protected cathode metal, the direct current of the protected cathode metal, the alternating current of the protected cathode metal, and / or the alternating voltage of the protected cathode metal.

3. Cathodic protection control device according to claim 1 or 2, characterized in that The potential instrument comprises the following components: a data collection module for receiving the potential-related parameters and sending the potential-related parameters to a controller; a communication module for sending the potential-related parameters to the server and receiving the control parameters; a controller for receiving and transmitting the potential-related parameters, receiving the control parameters, and controlling a constant voltage and constant current module according to the control parameters; a constant voltage and constant current module for adjusting the potential parameters of the anode bed to adjust the potential of the protected cathode metal to be within a preset cathode protection potential interval; The data collection module, the communication module, and the constant voltage and constant current module are connected to the controller.

4. The cathodic protection control device of claim 3, wherein: The potential instrument further comprises a power management module, a battery, and a solar panel; the solar panel is connected to the controller through the battery and the power management module.

5. The cathodic protection control device of claim 3, wherein: The potential instrument further comprises a display screen and a GPS module connected to the controller.

6. A method for controlling an ultra-low voltage variable frequency cathodic protection, characterized in that, The cathode protection control device of claim 1, and the control method comprises: S1. At least one potential instrument collects potential-related parameters of a protected cathode metal, and sends the potential-related parameters to a server. S2. The server compares and calculates the potential-related parameters of the protected cathode metal collected and sent by the potential instrument with preset potential-related parameters of the protected cathode metal in the server, obtains relevant control parameters according to whether the calculation result is within a preset protection value interval or higher or lower than the preset protection value interval, and sends the control parameters to the corresponding potential instrument. S3. The potential instrument receives the control parameters sent by the server, and adjusts the potential of the protected cathode metal to be within a preset cathode protection potential interval according to the control parameters.

7. The cathodic protection control method according to claim 6, characterized in that: Before step S1, the on-circuit potential, the open-circuit potential, and / or the natural potential of the protected cathode metal are preset in the server as the preset protection value interval.

8. The cathodic protection control method according to claim 7, characterized by, In S2, after the server receives the potential-related parameters of the protected cathode metal, the server obtains the control parameters of the protected cathode metal by comparing and calculating the preset potential-related parameters with the received potential-related parameters of the protected cathode metal, and sends the corrected control parameters to the corresponding potential instrument.

9. The cathodic protection control method according to claim 6, characterized in that: The control parameters include a de-energized potential of the protected cathode metal, an energized potential of the protected cathode metal, a natural potential of the protected cathode metal, a direct current of the protected cathode metal, an alternating current of the protected cathode metal, and / or an alternating voltage of the protected cathode metal.

10. The cathodic protection control method according to claim 6, characterized in that: In the step S2, the control parameters include a plurality of parameters, which are respectively sent to the potential meters and the adjacent potential meters. In the step S3, the anode beds controlled by the plurality of potential meters are adjusted according to the control parameters, so that the potential of the protected cathode metal is in the preset cathode protection potential interval.

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