CN207672131U - Externally positioned type impressed current cathodic protection monitors system - Google Patents
Externally positioned type impressed current cathodic protection monitors system Download PDFInfo
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- CN207672131U CN207672131U CN201721641601.6U CN201721641601U CN207672131U CN 207672131 U CN207672131 U CN 207672131U CN 201721641601 U CN201721641601 U CN 201721641601U CN 207672131 U CN207672131 U CN 207672131U
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Abstract
The utility model discloses a kind of externally positioned type impressed current cathodic protections to monitor system; the protection of instrumentation case for being placed outside impressed current cathodic protection system including one is internally provided with power supervisor, data collector, data transmission module, voltage sensor, monitoring internal system Temperature Humidity Sensor and temperature and humidity acquisition module in protection of instrumentation case；Current sensor is installed on the anode leader cable, cathode leader cable, impressed current anode cable of impressed current cathodic protection system; potentiometric sensor is installed on by protection steel construction; two output voltage gathering lines are connected on the leading-out terminal of DC power supply; the setting power-off monitoring modular on the input power cable of DC power supply; ground resistance sensor is installed in the ground terminal of DC power supply; each detection sensor is connected in protection of instrumentation case, realizes the monitoring to impressed current cathodic protection system.
Description
Technical field
The utility model is related to cathodic protection field, especially a kind of externally positioned type impressed current cathodic protection monitors system.
Background technology
Impressed current cathodic protection system (referred to as " impressed current system ") is used as a kind of effective anti-corrosion measure, in ocean
Structures anticorrosion field is widely applied.However, since marine environment is strong, impressed current system is for a long time at it
It, can threat substantial when middle military service.In addition, impressed current system by DC power supply, reference electrode, impressed current anode,
The multi-sections such as cable, monitoring device point are constituted, and internal wiring, cable, electronic component, control process etc. are complex, are easy
It is influenced by numerous unpredictable elements (such as human factor, environment), impressed current system is caused to break down.Such as：
(1) positive and negative anodes are reversed, and piling bar will be made to be forced to corrode；(2) current or voltage adjustable range is not suitable for, and steel-pipe pile is caused to cross guarantor
Shield is under proteciton；(3) service cable open circuit keeps impressed current system out of service；(4) impressed current anode cable or impressed current anode
Damage causes localised protection insufficient；(5) DC power supply is corroded by marine atmosphere, causes electronic component failure, leads to outer power-up
Streaming system failure etc..Therefore, professional maintenance management is to ensure the important measures of impressed current system service life and effect.
However, there is discontinuity in time in artificial inspection, tend not to find in time there are the problem of, influence cathode
Protecting effect.Impressed current system often carries automatic monitoring modular, but the relevant parameter of main monitoring DC power supply, such as exports electricity
Pressure, output current, protection potential etc. can not reflect the problem in system operation comprehensively.Such as：(1) the output electricity monitored
Stream is mainly the total output current of DC power supply.If using constant current mode, when some impressed current anode damages, total output current is not
It can change, but impressed current anode other branch currents can be caused to increase, may finally cause other region overprotections, and impressed current anode
Failure area is under proteciton.Therefore, it is difficult the real problem place of comprehensive reflection impressed current system only to monitor total output current.(2)
When DC power supply device or line failure, monitoring modular may also can be affected, as out of service, data transmission is different
Often etc., cause monitoring effect bad.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, propose a kind of externally positioned type impressed current cathodic protection
Monitoring system (is not influenced) independently of except impressed current cathodic protection system by its operating status, additional for comprehensive monitoring
The operating status of current system, service life and effect to ensure impressed current system provide positive support.
The utility model is achieved through the following technical solutions：
A kind of externally positioned type impressed current cathodic protection monitors system, including one is placed outside impressed current cathodic protection system
Protection of instrumentation case (14),
Protection of instrumentation case be internally provided with Anti-surging air switch (27), Voltage stabilizing module (28), power supervisor (29),
Data collector (32), data storage (31), data transmission module (33), line bank (30), accumulator (35), voltage sensor
Device (41), monitoring internal system Temperature Humidity Sensor (37) and temperature and humidity acquisition module (42)；In protection of instrumentation case (14) outer wall
On be additionally provided with antenna (40)；
There are two types of power supply modes for this monitoring system tool, and one is accumulator (35) connection power supervisors (29), pass through storage
Battery (35) is monitoring system power supply, and another kind is by the power supply output line of the DC power supply of impressed current cathodic protection system
(25) protection of instrumentation case (14) inside is introduced through the Waterproof connector of cable (26) on protection of instrumentation case (14), and is opened through surge air
(27) connection Voltage stabilizing module (28) is closed, Voltage stabilizing module (28) connects power supervisor (29), to realize by impressed current cathode
The DC power supply (3) of protection system is this monitoring system power supply；The output end of the power supervisor (29) is connected to line bank
(30) it is conveniently that modules are powered by line bank on；
The data collector (32), data storage (31), data transmission module (33) with line bank supply port
Connection, and data collector (32) is connect with data storage (31), data collector (32) also with data transmission module (33)
Connection, data transmission module (33) are connect with antenna (40)；
Monitoring internal system Temperature Humidity Sensor (37) is connect with temperature and humidity acquisition module (42), temperature and humidity acquisition module
(42) it is connect with line bank supply port and data collector (32)；
In the anode leader cable (6), cathode leader cable (7), impressed current anode cable (11) of impressed current cathodic protection system
On current sensor and its protecting box (19) be installed, the connecting cable of each current sensor introduces current sensor terminal box
(18), each current sensor connecting cable is connect with bus in current sensor terminal box, bus leads to protection of instrumentation case
(14) it in, is connect with line bank supply port and data collector (32)；
The installation potentiometric sensor (23) on by protection steel construction (1), by potentiometric sensor and by the list of protection steel construction
Core signal cable is collectively incorporated into potentiometric sensor terminal box (24), by two single signal electricity in potentiometric sensor terminal box
Cable is electrically connected with two core signal cables, and two core signal cables are led in protection of instrumentation case, are adopted with line bank supply port and data
Storage (32) connects；
Two output voltage gathering lines (22), two output voltage acquisitions are connected on the leading-out terminal of DC power supply (3)
Line accesses in protection of instrumentation case, and is connect with the acquisition port of voltage sensor (41), voltage sensor and line bank feeder ear
Mouth and data collector (32) connection；
Setting power-off monitoring modular (20), powers off the line of monitoring modular on the input power cable (4) of DC power supply (3)
Cable is led in protection of instrumentation case, is connect with line bank supply port and data collector (32)；
In the ground terminal installation ground resistance sensor (21) of DC power supply (3), the connection of ground resistance sensor (21)
Cable is led in protection of instrumentation case, is connect with line bank supply port and data collector (32)；
External environment Temperature Humidity Sensor (15) is installed on the outside of protection of instrumentation case, external environment Temperature Humidity Sensor
Cable is led in protection of instrumentation case, and is connect with the temperature and humidity acquisition module (42) in protection of instrumentation case；It is protected in DC power supply
Installation leads to instrument by Temperature Humidity Sensor (43) inside DC power supply, the cable of DC power supply inside Temperature Humidity Sensor on the inside of case
In device guard box, and it is connect with the temperature and humidity acquisition module (42) in protection of instrumentation case.
In the above-mentioned technical solutions, in protection of instrumentation case outside top installation video monitoring module (16), video monitoring mould
The cable of block is led in protection of instrumentation case, is connect with line bank supply port and data collector (32).Further, described to regard
Frequency monitoring module degree of protection possesses timing image-capture, remote in IP66 or more, rotatable change visual angle (0~360 °)
Journey transmission, locally-stored, cloud storage, personnel move the functions such as alarm, night vision.
In the above-mentioned technical solutions, the degree of protection of the protection of instrumentation case is equipped with anti-on IP66 or more, babinet
Drier or vapour phase inhibitor are placed in water vent valve, inside.
In the above-mentioned technical solutions, on protection of instrumentation case connecting cable extraction or introduce position all using cable waterproof
Connector, and apply sealing material at gap to seal.
In the above-mentioned technical solutions, the current sensor terminal box is used for the wiring of current sensor, when wiring, electric current
The inlet wire port of sensor wire box introduces supply lines and signal wire from protection of instrumentation case, by current sensor terminal box
The line bank in portion realizes separated time, then each separated time is led to each current sensor for being distributed in each monitoring point by leading-out terminal,
Realize the connection of multiple current sensors and power supply module and data collector.
In the above-mentioned technical solutions, the protection of instrumentation case is mounted on DC power supply (3) side by holder, and carries out and connect
Ground around uses steel fence to protect.
In the above-mentioned technical solutions, externally positioned type impressed current cathodic protection monitoring system passes through wired or wireless form and prison
Measured center computer connects.
It the advantages of the utility model and has the beneficial effect that：
1) the utility model uses external pattern, except impressed current cathodic protection system, not by impressed current
The influence of cathodic protection system working condition can continue to implement prison in the case where impressed current cathodic protection system is stopped
Survey and early warning.
(2) the utility model monitoring function is comprehensive, in addition to conventional output current, output voltage and protection potential, may be used also
Realize impressed current anode electric current, anode leader cable electric current, cathode leader cable electric current, ground connection situation, power supply power supply situation, DC power supply
Humiture and external environment humiture, monitoring system protection case inside humiture and steel construction protection current potential in guard box, and
Video monitoring and personnel's mobile alarm can be achieved, contribute to analyzing failure cause, timely early warning and take treatment measures early, it is right
There is positive effect in guarantee impressed current system normal operation.
(3) mounting means of the utility model be simple and convenient to operate, construct it is convenient, it is cloudy without dismantling original impressed current
Protect system in pole, you can sensor is easily installed at impressed current system monitoring point, without being carried out to DC power supply device
Large area is transformed.The impressed current system that the utility model is suitable for having monitoring function, especially suitable for script without monitoring function
Impressed current system.
(4) there are two types of power supply modes for this monitoring system tool, and one is accumulators to connect power supervisor, is by accumulator
System power supply is monitored, another kind is the power supply output line by the DC power supply of impressed current cathodic protection system through protection of instrumentation case
On Waterproof connector of cable introduce protection of instrumentation case inside, and through surge air switch connect Voltage stabilizing module, Voltage stabilizing module connection
Power supervisor, to realize that the DC power supply by impressed current cathodic protection system is this monitoring system power supply.Work as direct current
When source power supply is normal, by DC power supply to monitoring system power supply；When DC power supply is not powered, monitoring system is supplied by accumulator
Electricity, to ensure that the lasting non-stop run of monitoring system.
Description of the drawings
Fig. 1 is impressed current cathodic protection system schematic diagram.
Fig. 2 is that externally positioned type impressed current cathodic protection monitors system schematic.
Fig. 3 is that externally positioned type impressed current cathodic protection monitors system instrument guard box schematic internal view.
In figure：1-by protection steel construction；2-electrical connection reinforcing bars；3-DC power supplies；4-feed cables；5-power supplys；
6-anode leader cables；7-cathode leader cables；8-reference electrode cables；9-reference electrode terminal boxes；10-reference electrodes；
11-impressed current anode cables；12-impressed current system cable coupling boxs；13-impressed current anodes；14-external monitoring system instruments
Guard box；15-external environment Temperature Humidity Sensors；16-video monitoring modules；17-buses；18-current sensor wiring
Box；19-current sensors and its protecting box；20-power-off monitoring modulars；21-ground resistance sensors；22-output voltages
Gathering line；23-potentiometric sensors；24-potentiometric sensor terminal boxes；The power supply output line of 25- DC power supplies；26-cables are anti-
Water swivel；27-Anti-surging air switches；28-Voltage stabilizing modules；29-power supervisors；30-line banks；31-data storages
Device；32-data collectors；33-data transmission modules；35-accumulators；36-vapour phase inhibitors or drier；37-monitorings
Internal system Temperature Humidity Sensor；39-waterproof vent valves；40-antennas；41-voltage sensors；42-humiture collection moulds
Block, 43- DC power supplies inside Temperature Humidity Sensor.
Specific implementation mode
It is the structural schematic diagram of traditional impressed current cathodic protection system comprising multiple by protection steel referring to attached drawing 1
Structure 1, DC power supply 3, feed cable 4, power supply 5, anode leader cable 6, cathode leader cable 7, reference electrode cable 8, reference electricity
Pole terminal box 9, reference electrode 10, impressed current anode cable 11, cable coupling box 12, impressed current anode 13, by between protection steel construction 1
It is connected by being electrically connected reinforcing bar 2, power supply 5 connects DC power supply 3 by feed cable 4, passes through the main electricity of cathode by protection steel construction 1
Cable 7 is connected to DC power supply 3, and reference electrode 10 is connected to DC power supply 3 through reference electrode terminal box 9 and reference electrode cable 8,
Impressed current anode 13 is connected to cable coupling box 12 by impressed current anode cable 11, and cable coupling box 12 is connected through anode leader cable 6
To DC power supply 3.
It is cloudy that the utility model provides a kind of externally positioned type impressed current for monitoring above-mentioned impressed current cathodic protection system
Pole monitoring for protection system, output current, output voltage, the auxiliary which can monitor impressed current cathodic protection system are positive
Electrode current, anode leader cable electric current, cathode leader cable electric current, ground connection situation, power supply power supply situation, humiture in direct current power box
And humiture and steel construction protection current potential inside external environment humiture, monitoring system protection case, and can realize video monitoring
And personnel's mobile alarm.
Illustrate that the externally positioned type impressed current cathodic protection of the utility model monitors the skill of system with reference to specific embodiment
Art scheme.
Referring to attached drawing 2 and 3, externally positioned type impressed current cathodic protection monitors system, including one is placed outside impressed current cathode
The protection of instrumentation case 14 of protection system,
It is internally provided with Anti-surging air switch 27, Voltage stabilizing module 28, power supervisor 29, data in protection of instrumentation case 14
Collector 32, data storage 31, data transmission module 33, line bank 30, accumulator 35, vapour phase inhibitor or drier 36,
Voltage sensor 41, monitoring internal system Temperature Humidity Sensor 37 and temperature and humidity acquisition module 42；In 14 outer wall of protection of instrumentation case
On be additionally provided with antenna 40；It is also equipped with waterproof vent valve 39 on 14 side wall of protection of instrumentation case；
There are two types of power supply modes for this monitoring system tool, and one is accumulators 35 to connect power supervisor 29, passes through accumulator
35 be that (accumulator is the plumbic acid colloid battery with protective cover to monitoring system power supply, and capacity is determined by electric power thus supplied, generally
In 50Ah or more)；Another kind is the power supply output line 25 by the DC power supply of impressed current cathodic protection system through protection of instrumentation
Waterproof connector of cable 26 on case 14 introduces inside protection of instrumentation case 14, and connects Voltage stabilizing module 28 through surge air switch 27,
Voltage stabilizing module 28 connects power supervisor 29, to realize that the DC power supply 3 by impressed current cathodic protection system is this monitoring
System power supply；The power supervisor has rectification, decompression, charge control, overcharges protection, Cross prevention, reverse connecting protection, power supply
The functions such as pattern automatically switches, battery temp controls.The power supervisor includes transforming circuit, exportable a variety of common electricity
It presses (12V, 24V etc.), meets current sensor, voltage sensor, data collector, data storage device, data transmission module, temperature
The power demand of humidity sensor, temperature and humidity acquisition module, video surveillance module, power-off monitoring modular etc., by power supervisor
29 each output end is connected on line bank 30, is conveniently that modules are powered by line bank,
The data collector 32, data storage 31, data transmission module 33 are connect with line bank supply port, and
Data collector 32 is connect with data storage 31, and data collector 32 is also connect with data transmission module 33, data transmission mould
Block 33 is connect with antenna 40；
Monitoring internal system Temperature Humidity Sensor 37 is connect with temperature and humidity acquisition module 42, temperature and humidity acquisition module 42 with connect
Line arranges supply port and data collector 32 connects；
It is installed on the anode leader cable 6, cathode leader cable 7, impressed current anode cable 11 of impressed current cathodic protection system
There are current sensor and its protecting box 19, the connecting cable of each current sensor introduces current sensor terminal box 18, in electricity
Each current sensor connecting cable is connect with bus in flow sensor terminal box 18, bus 17 is led in protection of instrumentation case 14,
It is connect with line bank supply port and data collector 32；
Potentiometric sensor 23 is installed on by protection steel construction 1, by potentiometric sensor 23 and by the single of protection steel construction 1
Signal cable is collectively incorporated into potentiometric sensor terminal box 24, by two single signal cables in potentiometric sensor terminal box 24
It is electrically connected with two core signal cables, two core signal cables are led in protection of instrumentation case 14, are adopted with line bank supply port and data
Storage 32 connects；
Two output voltage gathering lines 22, two output voltage gathering lines 22 are connected on the leading-out terminal of DC power supply 3
It accesses in protection of instrumentation case 14, and is connect with the acquisition port of voltage sensor 41, voltage sensor 41 and line bank feeder ear
Mouth and data collector 32 connect；
(i.e. the input terminal of DC power supply 3) setting power-off monitoring modular 20, power-off on the power cable 4 of DC power supply 3
The cable of monitoring modular 20 is led in protection of instrumentation case 14, is connect with line bank supply port and data collector 32；
In the ground terminal installation ground resistance sensor 21 of DC power supply 3, the connecting cable of ground resistance sensor 21 draws
To protection of instrumentation case 14, it is connect with line bank supply port and data collector 32；
Video monitoring module 16 is installed in 14 outside top of protection of instrumentation case, the cable of video monitoring module 16 leads to instrument
In guard box 14, it is connect with line bank supply port and data collector 32；
External environment Temperature Humidity Sensor 15, external environment Temperature Humidity Sensor 15 are installed in 14 outside of protection of instrumentation case
Cable lead in protection of instrumentation case 14, and connect with the temperature and humidity acquisition module 42 in protection of instrumentation case 14；In DC power supply
14 inside installation of guard box is by Temperature Humidity Sensor 43 inside DC power supply, the cable of DC power supply inside Temperature Humidity Sensor 43
It leads in protection of instrumentation case 14, and is connect with the temperature and humidity acquisition module 42 in protection of instrumentation case 14；
On protection of instrumentation case 14 extraction of connecting cable or position is introduced all using Waterproof connector of cable, and at gap
Apply sealing material to seal.
The protection of instrumentation case 14 is mounted on 3 side of DC power supply by holder, and carries out ground connection, around uses steel fence
Protection.
Externally positioned type impressed current cathodic protection monitors system and is connect with monitoring center computer by wired or wireless form
(wireless, which is data transmission module 33, to be connect by antenna 40 with monitoring center computer radio, and wired forms are that data pass
Defeated module 33 is connect by optical fiber with monitoring center computer, and optical fiber passes through protection of instrumentation case 14 by waterproof connector).In monitoring
Heart computer is with corresponding operation and assessment software, it can be achieved that on-line monitoring, assessment and the early warning of impressed current system situation.
Illustrative description has been done to the utility model above, it should explanation, in the core for not departing from the utility model
In the case of the heart, it is any it is simple deformation, modification or other skilled in the art can not spend creative work etc.
The scope of protection of the utility model is each fallen with replacing.
Claims (5)
1. a kind of externally positioned type impressed current cathodic protection monitors system, it is characterised in that：It is placed outside impressed current cathode including one
The protection of instrumentation case (14) of protection system,
It is internally provided with Anti-surging air switch (27), Voltage stabilizing module (28), power supervisor (29), data in protection of instrumentation case
Collector (32), data storage (31), data transmission module (33), line bank (30), accumulator (35), voltage sensor
(41), monitoring internal system Temperature Humidity Sensor (37) and temperature and humidity acquisition module (42)；On protection of instrumentation case (14) outer wall
It is additionally provided with antenna (40)；
There are two types of power supply modes for this monitoring system tool, and one is accumulator (35) connection power supervisors (29), pass through accumulator
(35) it is monitoring system power supply, another kind is passed through by the power supply output line (25) of the DC power supply of impressed current cathodic protection system
Waterproof connector of cable (26) on protection of instrumentation case (14) introduces protection of instrumentation case (14) inside, and through surge air switch (27)
Voltage stabilizing module (28) is connected, Voltage stabilizing module (28) connects power supervisor (29), to realize by impressed current cathodic protection system
The DC power supply (3) of system is this monitoring system power supply；The output end of the power supervisor (29) is connected on line bank (30),
It is conveniently that modules are powered by line bank；
The data collector (32), data storage (31), data transmission module (33) are connect with line bank supply port,
And data collector (32) is connect with data storage (31), data collector (32) is also connect with data transmission module (33),
Data transmission module (33) is connect with antenna (40)；
Monitoring internal system Temperature Humidity Sensor (37) connect with temperature and humidity acquisition module (42), temperature and humidity acquisition module (42) and
Line bank supply port and data collector (32) connection；
Pacify on (11) in the anode leader cable (6), cathode leader cable (7), impressed current anode cable of impressed current cathodic protection system
Equipped with current sensor and its protecting box (19), the connecting cable of each current sensor introduces current sensor terminal box
(18), each current sensor connecting cable is connect with bus in current sensor terminal box, bus leads to protection of instrumentation case
(14) it in, is connect with line bank supply port and data collector (32)；
The installation potentiometric sensor (23) on by protection steel construction (1) is believed by potentiometric sensor and by the single of protection steel construction
Number cable is collectively incorporated into potentiometric sensor terminal box (24), in potentiometric sensor terminal box by two single signal cables with
Two core signal cables are electrically connected, and two core signal cables are led in protection of instrumentation case, with line bank supply port and data collector
(32) it connects；
Two output voltage gathering lines (22) are connected on the leading-out terminal of DC power supply (3), two output voltage gathering lines connect
Enter in protection of instrumentation case, and connect with the acquisition port of voltage sensor (41), voltage sensor and line bank supply port and
Data collector (32) connects；
Setting power-off monitoring modular (20), the cable for powering off monitoring modular draw on the input power cable (4) of DC power supply (3)
To protection of instrumentation case, it is connect with line bank supply port and data collector (32)；
In the ground terminal installation ground resistance sensor (21) of DC power supply (3), the connecting cable of ground resistance sensor (21)
It leads in protection of instrumentation case, is connect with line bank supply port and data collector (32)；
External environment Temperature Humidity Sensor (15), the cable of external environment Temperature Humidity Sensor are installed on the outside of protection of instrumentation case
It leads in protection of instrumentation case, and is connect with the temperature and humidity acquisition module (42) in protection of instrumentation case；In DC power supply guard box
Side installation leads to instrument guarantor by Temperature Humidity Sensor (43) inside DC power supply, the cable of DC power supply inside Temperature Humidity Sensor
In protecting box, and it is connect with the temperature and humidity acquisition module (42) in protection of instrumentation case.
2. a kind of externally positioned type impressed current cathodic protection according to claim 1 monitors system, it is characterised in that：In instrument
Guard box outside top installs video monitoring module (16), and the cable of video monitoring module is led in protection of instrumentation case, with wiring
Arrange supply port and data collector (32) connection.
3. a kind of externally positioned type impressed current cathodic protection according to claim 1 monitors system, it is characterised in that：The instrument
The degree of protection of device guard box is equipped with waterproof vent valve on IP66 or more, babinet, and drier is placed in inside or gas phase is slow
Lose agent.
4. a kind of externally positioned type impressed current cathodic protection according to claim 1 monitors system, it is characterised in that：Instrument is protected
On protecting box connecting cable extraction or introduce position all using Waterproof connector of cable, and at gap application sealing material to
Sealing.
5. a kind of externally positioned type impressed current cathodic protection according to claim 1 monitors system, it is characterised in that：The instrument
Device guard box is mounted on DC power supply (3) side by holder, and carries out ground connection, around steel fence is used to protect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721641601.6U CN207672131U (en) | 2017-11-30 | 2017-11-30 | Externally positioned type impressed current cathodic protection monitors system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721641601.6U CN207672131U (en) | 2017-11-30 | 2017-11-30 | Externally positioned type impressed current cathodic protection monitors system |
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| Publication Number | Publication Date |
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| CN207672131U true CN207672131U (en) | 2018-07-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740117A (en) * | 2017-11-30 | 2018-02-27 | 天津港设施管理服务公司 | A kind of externally positioned type impressed current cathodic protection monitoring system |
| CN111321416A (en) * | 2018-12-17 | 2020-06-23 | 四川启昌管道工程有限责任公司 | Novel power supply equipment of cathodic protection system |
-
2017
- 2017-11-30 CN CN201721641601.6U patent/CN207672131U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740117A (en) * | 2017-11-30 | 2018-02-27 | 天津港设施管理服务公司 | A kind of externally positioned type impressed current cathodic protection monitoring system |
| CN107740117B (en) * | 2017-11-30 | 2019-05-03 | 天津港设施管理服务公司 | A kind of externally positioned type impressed current cathodic protection monitoring system |
| CN111321416A (en) * | 2018-12-17 | 2020-06-23 | 四川启昌管道工程有限责任公司 | Novel power supply equipment of cathodic protection system |
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