CN211645392U - Cathodic protection current control device and impressed current cathodic protection system - Google Patents
Cathodic protection current control device and impressed current cathodic protection system Download PDFInfo
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- CN211645392U CN211645392U CN202020145918.6U CN202020145918U CN211645392U CN 211645392 U CN211645392 U CN 211645392U CN 202020145918 U CN202020145918 U CN 202020145918U CN 211645392 U CN211645392 U CN 211645392U
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Abstract
The application discloses cathodic protection current control device and impressed current cathodic protection system belongs to oil gas ground engineering technical field. The device sets up at output equipment's input or output, includes: the device comprises a shell, a microcontroller and at least two current regulation branches, wherein the microcontroller and the at least two current regulation branches are arranged in the shell; each current adjusting branch comprises an adjustable resistor and a Hall current sensor, wherein one end of the adjustable resistor is electrically connected with a cathode voltage equalizing point or a current output port of the output device, the other end of the adjustable resistor is electrically connected with a current input port of the output device or an auxiliary anode device, the Hall current sensor is arranged on one side of the adjustable resistor, and the adjustable resistor and the Hall current sensor are in signal connection with the microcontroller. The device solves the problem of over-protection or under-protection caused by unbalanced currents of a plurality of lines in the impressed current cathodic protection system in the prior art, and improves the protection effect of the impressed current cathodic protection system.
Description
Technical Field
The application relates to the technical field of oil-gas ground engineering, in particular to a cathodic protection current control device and an impressed current cathodic protection system.
Background
The principle of cathodic protection is that an external current is applied to the surface of a corroded metal structure, and the protected structure becomes a cathode, so that the electron migration caused by metal corrosion is inhibited, and the corrosion is avoided or weakened. The cathodic protection comprises impressed current cathodic protection and sacrificial anodic protection.
At present, in an applied current cathodic protection system, an output device, a plurality of cathode voltage equalizing points and a plurality of auxiliary anode devices are generally arranged, wherein the plurality of cathode voltage equalizing points are arranged on a pipeline or a storage tank to be protected, each cathode voltage equalizing point is connected with the output device through a cable, and the output device is connected with the plurality of auxiliary anode devices buried in soil through cables.
However, when the multi-path cable is connected with the output equipment, the auxiliary anode grounding resistors at different sites or the differences of the grounding resistors at the peripheries of pipelines at different sites on the site are large, so that the currents of a plurality of lines are unbalanced, the local current with low site resistance is easy to be overlarge, and the over-protection is achieved; the local current with high resistance is small, the minimum protection potential cannot be met, underprotection occurs, the overall protection effect of the system is influenced, and the system operation efficiency is low.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application provides a cathodic protection current control device and an impressed current cathodic protection system, so as to solve the over-protection or under-protection problem caused by unbalanced currents of a plurality of lines in the impressed current cathodic protection system in the prior art, and improve the protection effect of the impressed current cathodic protection system.
Specifically, the method comprises the following technical scheme:
in one aspect, an embodiment of the present application provides a cathodic protection current control apparatus, where the apparatus is disposed at an input end or an output end of an output device, and includes: the device comprises a shell, a microcontroller and at least two current regulation branches, wherein the microcontroller and the at least two current regulation branches are arranged in the shell;
each current adjusting branch comprises an adjustable resistor and a Hall current sensor, wherein one end of the adjustable resistor is electrically connected with a cathode voltage equalizing point or a current output port of the output equipment, and the other end of the adjustable resistor is electrically connected with a current input port of the output equipment or an auxiliary anode device; the Hall current sensor is configured to obtain a current value of the current adjusting branch circuit; the adjustable resistor and the Hall current sensor are in signal connection with the microcontroller.
In one possible design, the housing includes a first portion and a second portion;
the second part is positioned at the upper part of the first part and is detachably connected with the first part;
the microcontroller and the at least two current regulating branches are both located within the first portion.
In one possible design, each of the current regulating branches further includes: a relay;
the relay is arranged between the adjustable resistor and the cathode voltage equalizing point or the current output port of the output equipment;
the relay is in signal connection with the microcontroller.
In one possible design, the apparatus further includes: installing a guide rail;
the installation guide rail is fixed in the first portion, and each relay on the current regulation branch is arranged on the installation guide rail.
In one possible design, the apparatus further includes: a plurality of input terminals and an input bus;
the input binding posts are arranged at the lower part of the first part, and each input binding post is connected with the cathode voltage equalizing point or a current output port of the output equipment through a cable;
and the relay on each current regulating branch is connected with the input wiring terminal through the input bus.
In one possible design, each of the current regulating branches further includes: an output binding post;
one end of the output binding post is electrically connected with the adjustable resistor, and the other end of the output binding post is connected with a current input port of the output equipment or the auxiliary anode device through a cable;
the output terminal is disposed on an insulating terminal plate, which is fixed in the first portion.
In one possible design, the apparatus further includes: a power line post and a power line;
the power line connecting column is arranged at the lower part of the first part and is connected with the microcontroller through the power line.
In one possible design, the apparatus further includes: the device comprises a display, a function panel, a plurality of adjusting knobs and a change-over switch;
the display, the function panel, the plurality of adjustment knobs and the transfer switch are disposed on the second portion;
the display, the function panel and the change-over switch are electrically connected with the microcontroller.
In one possible design, at least one fixing member is disposed on an outer periphery of the first portion, and the fixing member is configured to fix the housing to a wall or a support frame.
In one possible design, the fixture includes a first ring, a second ring, a third ring, and a fourth ring;
the first ring body and the second ring body are symmetrically arranged on the outer periphery of the first portion, and the third ring body and the fourth ring body are symmetrically arranged on the outer periphery of the first portion.
In another aspect, an impressed current cathodic protection system is provided in an embodiment of the present application, where the system includes: the cathodic protection current control device, the output means, the plurality of cathode grading sites, and the plurality of auxiliary anode devices as recited in any of the above-mentioned, wherein,
when the cathodic protection current control device is arranged at the input end of the output equipment, the plurality of cathodic voltage equalizing points, the cathodic protection current control device, the output equipment and the plurality of auxiliary anode devices are electrically connected in sequence;
when the cathodic protection current control device is arranged at the output end of the output equipment, the cathodic protection current control device is electrically connected with the plurality of cathode voltage equalizing points, the output equipment, the cathodic protection current control device and the plurality of auxiliary anode devices in sequence.
In one possible design, the output device is a potentiostat.
The technical scheme provided by the embodiment of the application has the beneficial effects that at least:
by arranging the cathodic protection current control device in the input end or the output end of the output equipment, when the cathodic protection current control device is arranged in the input end of the output equipment, the cathode voltage equalizing point, the cathodic protection current control device and the output equipment are electrically connected in sequence; when the cathodic protection current control device is arranged at the output end of the output device, the cathodic protection current control device and the auxiliary anode device are sequentially electrically connected, the Hall current sensor on each current regulation branch is configured to obtain the current value of the current regulation branch where the Hall current sensor is located, and transmit the current value to the microcontroller, and the microcontroller changes the resistance value of the adjustable resistor according to the current value so as to change the current value of the current regulation branch, so that the current in each current regulation branch is controlled within a preset range, the problem of over-protection or under-protection caused by unbalance of currents of a plurality of lines in the impressed current cathodic protection system in the prior art is solved, and the protection effect of the impressed current cathodic protection system is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first portion of a cathode protection current control device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a second portion of a cathode protection current control device according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of an impressed current cathodic protection system provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of another impressed current cathodic protection system provided in an embodiment of the present application.
The reference numerals in the drawings denote:
1-shell, 101-first part, 1011-first fixing bolt hole, 102-second part, 1021-second fixing bolt hole, 2-microcontroller, 3-adjustable resistor, 4-Hall current sensor, 5-relay, 6-installation guide rail, 7-input terminal, 8-input bus, 9-output terminal, 10-insulation terminal board, 11-power line connection post, 12-power line, 13-display, 14-function panel, 15-adjusting knob, 16-change-over switch, 17-fixing piece, 1701-first ring body, 1702-second ring body, 1703-third ring body, 1704-fourth ring body, 18-output device, 19-cathode voltage equalizing point, 110-auxiliary anode device, 111-signal line, 112-data line, 113-alarm warning light, 114-pipeline.
With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Before the embodiments of the present application are described in further detail, the terms of orientation in the embodiments of the present application, such as "upper" and "lower", are used only for clearly describing the structures of the cathodic protection current control device and impressed current cathodic protection system in the embodiments of the present application with reference to the orientation shown in fig. 1, and do not have a meaning of limiting the scope of the present application. Unless defined otherwise, all technical terms used in the examples of the present application have the same meaning as commonly understood by one of ordinary skill in the art.
To make the technical solutions and advantages of the present application clearer, the following will describe the embodiments of the present application in further detail with reference to the accompanying drawings.
In order to solve the problem of over-protection or under-protection caused by unbalanced currents of a plurality of lines in an impressed current cathodic protection system in the prior art, an embodiment of the application provides a cathodic protection current control device, a structural schematic diagram of which is shown in fig. 1, the device is arranged at an input end or an output end of an output device 18, and the device can be selectively placed at the input end or the output end of the output device 18 according to production requirements. The device includes: the device comprises a shell 1, a microcontroller 2 and at least two current regulation branches, wherein the microcontroller 2 and the at least two current regulation branches are arranged in the shell 1;
each current adjusting branch comprises an adjustable resistor 3 and a hall current sensor 4, wherein one end of the adjustable resistor 3 is electrically connected with a cathode voltage equalizing point 19 or a current output port of the output device 18, the other end of the adjustable resistor 3 is electrically connected with a current input port of the output device 18 or the auxiliary anode device 110, the hall current sensor 4 is configured to obtain a current value of the current adjusting branch, and the adjustable resistor 3 and the hall current sensor 4 are both in signal connection with the microcontroller 2;
it will be appreciated that by arranging the microcontroller 2 and the at least two current regulating branches within the housing 1, protection of the microcontroller 2 and the at least two current regulating branches can be achieved with the housing 1.
Meanwhile, the number of the current adjusting branches can be set according to the number of the cathode voltage equalizing points 19 or the auxiliary anode devices 110 in the impressed current cathodic protection system.
For example, the number of the current regulating branches may be four, as shown in fig. 1.
In one embodiment, when the cathodic protection current control device is disposed at the input of the output device 18, the cathodic voltage-sharing point 19, the cathodic protection current control device, and the output device 18 are electrically connected in sequence; when the cathodic protection current control device is arranged at the output end of the output device 18, the cathodic protection current control device and the auxiliary anode device 110 are sequentially and electrically connected, the hall current sensor 4 on each current regulation branch is configured to obtain the current value of the current regulation branch where the hall current sensor is located and transmit the current value to the microcontroller 2, and the microcontroller 2 changes the resistance value of the adjustable resistor 3 according to the current value to change the current value of the current regulation branch, so that the current in each current regulation branch is controlled within a preset range.
Therefore, according to the cathodic protection current control device provided by the embodiment of the application, the microcontroller 2 and the at least two current regulation branches arranged in the shell 1 are utilized, the problem of over-protection or under-protection caused by unbalance of currents of a plurality of lines in the impressed current cathodic protection system in the prior art is solved, and the protection effect of the impressed current cathodic protection system is improved.
Optionally, the housing 1 includes a first portion 101 and a second portion 102, a schematic structural diagram of the first portion 101 is shown in fig. 1, and a schematic structural diagram of the second portion 102 is shown in fig. 2.
The second part 102 is positioned on the upper part of the first part 101 and is detachably connected with the first part 101;
the microcontroller 2 and the at least two current regulating branches are located in the first portion 101.
With this arrangement, the microcontroller 2 and the at least two current-regulating branches located in the first portion 101 are better protected by arranging the second portion 102 on the upper portion of the first portion 101, so that the second portion 102 covers the first portion 101 in a manner equivalent to a cover.
Optionally, the first portion 101 has a rectangular parallelepiped structure, and the second portion 102 has a rectangular parallelepiped structure.
In a possible implementation manner, in order to detachably connect the second portion 102 and the first portion 101, a plurality of first fixing bolt holes 1011 are formed in the first portion 101, as shown in fig. 1, second fixing bolt holes 1021 corresponding to the first fixing bolt holes 1011 are formed in positions of the second portion 102 corresponding to the first portion 101, and as shown in fig. 2, a fixing bolt sequentially passes through one second fixing bolt hole 1021 and the corresponding first fixing bolt hole 1011, so that the second portion 102 and the first portion 101 can be fixedly connected.
For example, the number of the first fixing bolt holes 1011 may be four, and the first fixing bolt holes are uniformly distributed on the first portion 101, as shown in fig. 1.
In a possible implementation, at least one fixing member 17 is disposed on an outer periphery of the first portion 101, as shown in fig. 1, and the fixing member 17 is configured to fix the housing 1 on a wall or a support frame.
It will be appreciated that since the output device 18 is typically located indoors, the housing 1 may be secured to a wall or support within the room in which the output device 18 is located.
Further, the fastener 17 includes a first ring 1701, a second ring 1702, a third ring 1703, and a fourth ring 1704, as shown in FIG. 1.
The first ring 1701 and the second ring 1702 are symmetrically disposed on the outer periphery of the first portion 101, and the third ring 1703 and the fourth ring 1704 are symmetrically disposed on the outer periphery of the first portion 101.
The first ring 1701, the second ring 1702, the third ring 1703 and the fourth ring 1704 are used to fix the housing 1 to a wall or a support.
In the first part 101, in order to realize the on-off control of each current regulating branch in the applied current cathode protection system and prevent the damage of the device caused by the line fault, each current regulating branch further comprises: a relay 5, as shown in fig. 1.
The relay 5 is arranged between the adjustable resistor 3 and the cathode voltage equalizing point 19 or the current output port of the output device 18;
the relay 5 is in signal connection with the microcontroller 2.
The relay 5 is configured to control the on or off of the line, and plays a role in protecting devices on the line.
Optionally, in order to facilitate detachment and installation of the plurality of relays 5, the cathode protection current control apparatus provided in the embodiment of the present application further includes: the guide rail 6 is installed.
Wherein the mounting rail 6 is fixed in the first portion 101 and the relay 5 on each circuit-regulating branch is arranged on the mounting rail 6, as shown in fig. 1.
In order to realize that the relay 5 is connected to the corresponding cathode voltage equalizing point 19 or the current output port of the output device 18, the cathode protection current control device provided in the embodiment of the present application further includes: a plurality of input studs 7 and an input bus 8, as shown in fig. 1.
Wherein a plurality of input terminals 7 are arranged at the lower part of the first part 101, each input terminal 7 is connected with the cathode voltage equalizing point 19 or the current output port of the output device 18 through a cable;
the relay 5 on each current regulating branch is connected to an input terminal 7 via an input bus 8.
It will be appreciated that the input terminals 7 correspond one-to-one to the cathode voltage equalization points 19.
With this arrangement, the plurality of input terminals 7 and the input bus 8 facilitate connection of the relay 5 on each current regulation branch with the corresponding cathode voltage equalizing point 19 or the current output port of the output device 18, and also order the circuit structure in the first portion 101.
In order to facilitate the connection of the adjustable resistor 3 of each current regulating branch to the corresponding current input of the output device 18 or to the auxiliary anode arrangement 110, each current regulating branch further comprises: a plurality of output studs 9, as shown in fig. 1.
Wherein, one end of the output binding post 9 is electrically connected with the adjustable resistor 3, and the other end is connected with the current input port of the output device 18 or the auxiliary anode device 110 through a cable;
the output terminals 9 are provided on an insulating wiring board 10, and the insulating wiring board 10 is fixed in the first portion 101.
By the arrangement, the plurality of output binding posts 9 can be fixed by the insulating wiring board 10, so that electric shock of an operator due to electric leakage when the operator connects a cable with the output binding posts 9 is prevented, and the adjustable resistor 3 on each current adjusting branch is conveniently connected with the current input port of the corresponding output device 18 or the auxiliary anode device 110.
In order to supply power to the microcontroller 2, the cathodic protection current control device provided in the embodiment of the present application further includes: a power cord post 11 and a power cord 12 as shown in fig. 1.
Wherein, the power cord post 11 is disposed at the lower part of the first portion 101 and is connected with the microcontroller 2 through the power cord 12.
An external power supply supplies power to the microcontroller 2 via the power supply terminal 11 and the power supply line 12. Here, the external power source may be 220V ac.
Optionally, the relay 5, the adjustable resistor 3, the hall current sensor 4 and the output terminal 9 of each current adjusting branch circuit are connected by using copper wires.
Optionally, the adjustable resistor 3, the hall current sensor 4 and the relay 5 on each current adjusting branch may be in signal connection with the microcontroller 2 through a signal line 111, as shown in fig. 1.
Further, the signal line 111 may be an RS-485 bus.
In the second portion 102, since the second portion 102 is located at the upper portion of the first portion 101, in order to facilitate the view of the on-site operation of the operator, in the cathode protection current control device provided in the embodiment of the present application, the device further includes: a display 13, a function panel 14, a plurality of adjustment knobs 15 and a changeover switch 16, as shown in fig. 2.
The display 13, the function panel 14, the plurality of adjustment knobs 15 and the changeover switch 16 are provided on the second portion 102;
the display 13, the function panel 14 and the changeover switch 16 are electrically connected to the microcontroller 2.
Optionally, the display 13 and the function panel 14 are connected to the microcontroller 2 via data lines 112.
Further, an adjusting knob 15 may be connected in parallel with an adjustable resistor 3.
Wherein the display 13 is configured to display the operational data information in real time.
Optionally, the operation data information includes a magnitude of a current value in each current adjusting branch, an on or off state of the relay 5, and a resistance value of the adjustable resistor 3.
Optionally, the display 13 is a liquid crystal display 13.
The function board 14 is configured to set operating parameters and to transmit the operating parameters to the microcontroller 2 via the data bus 112.
The switch 16 is configured to allow the operator to press the switch 16 to open the plurality of adjustable resistors 3 and the plurality of adjusting knobs 15 to be manually adjusted when the microcontroller 2 fails to operate normally due to a fault.
The plurality of adjustment knobs 15 are configured to cooperate with the transfer switch 16, and the control of the current value of each current adjustment branch can be achieved by adjusting each adjustment knob 15 clockwise or counterclockwise.
In order to realize the alarm prompt function, the cathodic protection current control device provided by the embodiment of the present application further includes: an alarm warning light 113, as shown in fig. 2.
The alarm prompting lamp 113 is arranged on the second part 102 and is electrically connected with the microcontroller 2.
Wherein the alarm prompting lamp 113 is configured to give an alarm prompt to an operator when any one of the lines is disconnected.
Meanwhile, alarm information can be displayed on the display 13, and the current regulation branch circuit with the open circuit is correspondingly displayed, so that the fault circuit can be quickly positioned, unattended operation can be realized, the inspection frequency of an operator on the equipment is reduced, the troubleshooting efficiency of the circuit fault is improved, and the operation efficiency of the impressed current cathodic protection system is improved.
An embodiment of the present application further provides an impressed current cathodic protection system, including: the above-mentioned cathodic protection current control means, the output device 18, the plurality of cathodic voltage-sharing points 19 and the plurality of auxiliary anode means 110.
When the cathodic protection current control device is disposed at the input end of the output device 18, the plurality of cathode voltage equalizing points 19, the cathodic protection current control device, the output device 18, and the plurality of auxiliary anode devices 110 are electrically connected in sequence, as shown in fig. 3.
When the cathodic protection current control means is provided at the output of the output device 18, the plurality of cathode voltage equalizing points 19, the output device 18, the cathodic protection current control means, and the plurality of auxiliary anode devices 110 are electrically connected in sequence, as shown in fig. 4.
It is understood that each cathode voltage equalizing point 19 is disposed on the pipeline 114, and the plurality of cathode voltage equalizing points 19, the cathode protection current control device, the output device 18 and the plurality of auxiliary anode devices 110 or the plurality of cathode voltage equalizing points 19, the output device 18, the cathode protection current control device and the plurality of auxiliary anode devices 110 are connected by cables.
It should be noted that the cathodic protection current control device can be selectively installed at the input end or the output end of the output device 18 according to the situation of field production input cost and technical requirement.
Of course, the cathodic protection current control device may be installed at both the input and output terminals of the output device 18.
Optionally, the output device 18 is a potentiostat.
In one possible example, after determining the number of uses and the use positions of the cathodic protection current control devices, the cathodic protection current control devices may be fixed to a wall located in the same room as the output device 18. Now, taking the case where the cathodic protection current control device is provided at the output end of the output device 18, as shown in fig. 4, the following description will be made:
connecting the current outlet of the output device 18 to one input terminal 7, each output terminal 9 being connected to a corresponding auxiliary anode unit 110;
and connecting an external power line 12 with the power line connecting post 11 to start the cathodic protection current control device.
In this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.
The above description is only for facilitating the understanding of the technical solutions of the present application by those skilled in the art, and is not intended to limit the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (12)
1. A cathodic protection current control device, characterized in that it is arranged at the input or output of an output device (18), comprising: the device comprises a shell (1), and a microcontroller (2) and at least two current regulation branches which are arranged in the shell (1);
each current adjusting branch comprises an adjustable resistor (3) and a Hall current sensor (4), wherein one end of the adjustable resistor (3) is electrically connected with a cathode voltage equalizing point (19) or a current output port of the output equipment (18), and the other end of the adjustable resistor is electrically connected with a current input port of the output equipment (18) or an auxiliary anode device (110); the Hall current sensor (4) is configured to acquire a current value of the current adjusting branch; the adjustable resistor (3) and the Hall current sensor (4) are in signal connection with the microcontroller (2).
2. Cathodic protection current control device according to claim 1, characterized in that the casing (1) comprises a first portion (101) and a second portion (102);
the second part (102) is positioned at the upper part of the first part (101) and is detachably connected with the first part (101);
the microcontroller (2) and the at least two current regulating branches are both located within the first portion (101).
3. The apparatus of claim 2, wherein each of said current regulation branches further comprises: a relay (5);
the relay (5) is arranged between the adjustable resistor (3) and the cathode voltage equalizing point (19) or a current output port of the output device (18);
the relay (5) is in signal connection with the microcontroller (2).
4. The cathodic protection current control device of claim 3, further comprising: a mounting rail (6);
the mounting guide rail (6) is fixed in the first portion (101), and the relay (5) on each current regulating branch is arranged on the mounting guide rail (6).
5. The cathodic protection current control device of claim 3, further comprising: a plurality of input terminals (7) and input buses (8);
a plurality of input terminals (7) are arranged at the lower part of the first part (101), and each input terminal (7) is connected with the cathode voltage equalizing point (19) or the current output port of the output device (18) through a cable;
and the relay (5) on each current regulating branch is connected with the input binding post (7) through the input bus (8).
6. The apparatus of claim 2, wherein each of said current regulation branches further comprises: an output terminal (9);
one end of the output binding post (9) is electrically connected with the adjustable resistor (3), and the other end of the output binding post is connected with a current input port of the output equipment (18) or the auxiliary anode device (110) through a cable;
the output terminal (9) is arranged on an insulating wiring board (10), and the insulating wiring board (10) is fixed in the first part (101).
7. The cathodic protection current control device of claim 2, further comprising: a power line post (11) and a power line (12);
the power line post (11) is arranged at the lower part of the first part (101) and is connected with the microcontroller (2) through the power line (12).
8. The cathodic protection current control device of claim 2, further comprising: a display (13), a function panel (14), a plurality of adjusting knobs (15) and a transfer switch (16);
the display (13), the function panel (14), the plurality of adjustment knobs (15) and the changeover switch (16) are provided on the second portion (102);
the display (13), the function panel (14) and the changeover switch (16) are electrically connected with the microcontroller (2).
9. The cathodic protection current control device according to claim 2, characterized in that at least one fixing member (17) is provided on the outer periphery of the first portion (101), the fixing member (17) being configured to fix the housing (1) on a wall or a support frame.
10. The cathodic protection current control device as claimed in claim 9, wherein the fixture (17) comprises a first ring (1701), a second ring (1702), a third ring (1703) and a fourth ring (1704);
the first ring body (1701) and the second ring body (1702) are symmetrically disposed on an outer periphery of the first portion (101), and the third ring body (1703) and the fourth ring body (1704) are symmetrically disposed on an outer periphery of the first portion (101).
11. An impressed current cathodic protection system, comprising: cathodic protection current control device, output means (18), a plurality of cathodic voltage-sharing points (19) and a plurality of auxiliary anode devices (110) according to any one of claims 1 to 10,
when the cathodic protection current control device is arranged at the input end of the output equipment (18), the plurality of cathodic voltage equalizing points (19), the cathodic protection current control device, the output equipment (18) and the plurality of auxiliary anode devices (110) are electrically connected in sequence;
when the cathodic protection current control device is arranged at the output end of the output equipment (18), the plurality of cathode voltage equalizing points (19), the output equipment (18), the cathodic protection current control device and the plurality of auxiliary anode devices (110) are electrically connected in sequence.
12. Impressed current cathodic protection system as defined in claim 11, wherein said output device (18) is a potentiostat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020145918.6U CN211645392U (en) | 2020-01-22 | 2020-01-22 | Cathodic protection current control device and impressed current cathodic protection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020145918.6U CN211645392U (en) | 2020-01-22 | 2020-01-22 | Cathodic protection current control device and impressed current cathodic protection system |
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| CN211645392U true CN211645392U (en) | 2020-10-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021210137A1 (en) | 2021-09-14 | 2023-03-16 | Volkswagen Aktiengesellschaft | Protective device for a high-voltage battery system, high-voltage battery system and motor vehicle |
| CN116262972A (en) * | 2021-12-13 | 2023-06-16 | 中国石油天然气股份有限公司 | Casing cathode protection equipment based on impressed current |
-
2020
- 2020-01-22 CN CN202020145918.6U patent/CN211645392U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021210137A1 (en) | 2021-09-14 | 2023-03-16 | Volkswagen Aktiengesellschaft | Protective device for a high-voltage battery system, high-voltage battery system and motor vehicle |
| DE102021210137B4 (en) | 2021-09-14 | 2023-11-16 | Volkswagen Aktiengesellschaft | Protective device for a high-voltage battery system, high-voltage battery system and motor vehicle |
| CN116262972A (en) * | 2021-12-13 | 2023-06-16 | 中国石油天然气股份有限公司 | Casing cathode protection equipment based on impressed current |
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