KR20170061433A - Anticorrosion system having oilleak detecting function - Google Patents

Anticorrosion system having oilleak detecting function Download PDF

Info

Publication number
KR20170061433A
KR20170061433A KR1020150166446A KR20150166446A KR20170061433A KR 20170061433 A KR20170061433 A KR 20170061433A KR 1020150166446 A KR1020150166446 A KR 1020150166446A KR 20150166446 A KR20150166446 A KR 20150166446A KR 20170061433 A KR20170061433 A KR 20170061433A
Authority
KR
South Korea
Prior art keywords
metal tanks
rectifier
anodes
metal
tanks
Prior art date
Application number
KR1020150166446A
Other languages
Korean (ko)
Other versions
KR102031108B1 (en
Inventor
배정효
백지국
Original Assignee
한국전기연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국전기연구원 filed Critical 한국전기연구원
Priority to KR1020150166446A priority Critical patent/KR102031108B1/en
Publication of KR20170061433A publication Critical patent/KR20170061433A/en
Application granted granted Critical
Publication of KR102031108B1 publication Critical patent/KR102031108B1/en

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/48—Arrangements of indicating or measuring devices
    • B65D90/50—Arrangements of indicating or measuring devices of leakage-indicating devices
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/005—Anodic protection
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/22—Monitoring arrangements therefor
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
    • C23F2213/30—Anodic or cathodic protection specially adapted for a specific object

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

A system for a plurality of metal tanks buried in the ground, comprising: a plurality of first anodes buried outside a plurality of metal tanks; A rectifier for allowing the method current to flow from the plurality of first anodes to each of the plurality of metal tanks; A leakage detection sensor embedded in a lower portion of each of the plurality of metal tanks and a lower portion of the pipe of each of the plurality of metal tanks to sense leakage of the pipes of the plurality of metal tanks and the plurality of metal tanks; And a central control device for controlling at least one of an output voltage and an output current of the rectifier and determining whether the leakage current is leaked according to a sensing signal of the leakage detection sensor. do.

Figure P1020150166446

Description

TECHNICAL FIELD [0001] The present invention relates to a system having a leakage detection function,

The present invention relates to the field of systems. More particularly, the present invention relates to a system for detecting oil leakage in a metal tank.

In general, the term "corrosion" is defined as a change in the material itself or a change in the properties of the material as the material reacts with the surrounding environment. Most of these corrosion occur because of the electrochemical reaction caused by the movement of electrons, so it is called electrochemical corrosion.

When such corrosion occurs in a metal structure, in particular, a metal tank for storing oil, or an oil pipeline which is a moving passage of oil, not only economical damage due to oil leakage but also various environmental problems are caused. Therefore, a technique for preventing corrosion of a metal structure is required, and an electric method is mainly used at present.

The electric method is a method of preventing corrosion by artificially introducing a DC current (a method current) on a metal surface through an electrolyte to cause a negative electrode reaction on a metal surface. Rectifiers are used as electrical equipment to prevent corrosion of pipelines (gas pipelines, oil pipelines, sewer pipes, other underground metal structures, etc.). The rectifier for this method is designed to reduce the potential of the system to below a certain level (eg, -850 mV / CSE) to prevent corrosion of the system. Shed.

As described above, electrical equipment for various types of buried underground facilities has been developed and commercialized. However, there is a risk of serious environmental pollution when the oil leaks due to the corrosion of the oil tank concentratedly buried in the ground such as a gas station Despite the existence of the oil tank, there is a shortage of the oil tank and the oil tank.

A leakage prevention system having leakage detection function according to an embodiment of the present invention aims to prevent corrosion of metal tanks buried in the ground.

In addition, according to one embodiment of the present invention, a leakage prevention system having a leak detection function aims to accurately and easily detect leakage of a metal tank.

In addition, an anti-leakage system having a leak detection function according to an embodiment of the present invention aims to prevent economic and environmental damage due to corrosion of a metal tank.

The system of the present invention, in accordance with an embodiment of the present invention,

1. A system for a plurality of metal tanks buried in the ground, comprising: a plurality of first anodes buried outside the plurality of metal tanks; A rectifier for allowing a method current to flow from the plurality of first anodes to each of the plurality of metal tanks; A leakage detection sensor embedded in a lower portion of each of the plurality of metal tanks and a lower portion of a pipe of each of the plurality of metal tanks and sensing leakage in pipes of a plurality of metal tanks and a plurality of metal tanks; And a central control unit for controlling at least one of an output voltage and an output current of the rectifier and determining whether the leakage current is leaked according to a sensing signal of the leakage detection sensor.

The system further includes a second anode embedded in the region of the plurality of metal tanks, wherein the rectifier allows the method current to flow from the second anode to each of the plurality of metal tanks .

The second anode may include a mixed metal oxide (MMO).

The system further comprises a reference electrode buried in the ground, wherein the central control device includes a rectifier for each of the plurality of first anodes based on a potential of each of the plurality of metal tanks measured relative to the reference electrode, The output current and the output voltage of the inverter.

The central control device may control the voltage of the metal tank corresponding to any one of the first anodes when the at least one of the output current and the output voltage of the rectifier with respect to the first anode of the plurality of first anodes increases, It is possible to output a message indicating that the polarity connection of any one of the first anodes is erroneous.

The central control unit may transmit a message to the user terminal indicating that the polarity of one of the first anodes is incorrect.

A recloser may be connected between each of the plurality of metal tanks and the rectifier or between the plurality of first anodes and the rectifier.

The piping may connect each of the plurality of metal tanks to a ground oil located on the ground.

The central control device may transmit a message to the user terminal indicating a potential and leakage of each of the plurality of metal tanks with respect to the reference electrode.

The central control unit may adjust at least one of an output voltage and an output current of the rectifier under the control of the user terminal.

According to another embodiment of the present invention,

A system for a plurality of metal tanks buried in the ground, comprising: a plurality of first anodes buried in an outer portion of a region where the plurality of metal tanks are arranged; A rectifier for allowing a method current to flow from the plurality of first anodes to each of the plurality of metal tanks; A reference electrode embedded in a lower portion of the plurality of metal tanks; And a central control device for controlling at least one of the output current and the output voltage of the rectifier to each of the plurality of first anodes based on the potential of each of the plurality of metal tanks measured relative to the reference electrode, The apparatus may determine that leakage has occurred in any one of the metal tanks when the potential of one of the metal tanks measured relative to the reference electrode has changed by more than a predetermined value within a predetermined time range.

Some effects that can be achieved by a system with leakage detection function according to an embodiment of the present invention are as follows.

i) It is possible to prevent corrosion of metal tanks buried in the ground.

ii) It is possible to accurately and easily detect leakage of metal tanks.

iii) Economic and environmental damage due to corrosion of metal tanks can be prevented.

However, the effects that can be attained by the system having the leakage detection function according to the embodiment of the present invention are not limited to those mentioned above, and other effects not mentioned can be obtained from the following description And will be apparent to one of ordinary skill in the art.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a diagram illustrating a system of systems in accordance with one embodiment of the present invention.
Fig. 2 is a view showing the system of Fig. 1 centered on the ground surface. Fig.
FIG. 3 is a view showing a central control device shown in FIG. 2, and a user terminal connected to the central control device.
4 is a graph showing a change in potential of the metal tank due to an increase in the output current and / or the output voltage of the rectifier when the polarity of the first anode and the metal tank is incorrectly connected.
5 is a diagram illustrating a system of systems according to another embodiment of the present invention.
6 is a graph showing a change in potential of the metal tank when oil leakage occurs in the metal tank.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the intention is not to limit the invention to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another.

Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

In addition, components referred to in this specification as 'units', 'modules', and the like refer to hardware components such as software, FPGA, or ASIC, and these components perform certain roles. However, the components are not limited to software or hardware. The component may be configured to reside on an addressable storage medium. Further, two or more components may be merged into one component, or one component may be divided into two or more functions according to a more refined function. In addition, each of the components to be described below may additionally perform some or all of the functions of the other components in addition to the main functions that the user is responsible for, and some of the main functions And may be performed entirely by components.

Hereinafter, exemplary embodiments according to the technical idea of the present invention will be described with reference to the drawings.

FIG. 1 is a view showing a system of a system according to one embodiment of the present invention, and FIG. 2 is a diagram showing the system of FIG. 1 around an earth surface G. FIG. FIG. 2 shows one of the three metal tanks 10a, 10b and 10c shown in FIG. 1 as a reference, and the remaining metal tanks 10b and 10c are also shown in FIG. 10a. 3 is a view showing the central control device 70 shown in FIG. 2 and the user terminal 90 connected to the central control device 70. In FIG.

1 and 2, a corrosion system according to an embodiment of the present invention includes a plurality of first anodes 20a, 20b, 20c, a rectifier 60, leak detection sensors 50a, 50b, 50c, And a central control device 70. [

The system for preventing corrosion according to an embodiment of the present invention prevents corrosion of a plurality of metal tanks 10a, 10b and 10c buried in the ground under the ground surface G and also prevents corrosion of the metal tanks 10a, 10b, and 10c, respectively.

As shown in FIG. 1, each of the plurality of first anodes 20a, 20b, and 20c includes a plurality of metal tanks 10a, 10b, and 10c May be provided outside the region R in which they are clustered. Here, the region R in which the plurality of metal tanks 10a, 10b, and 10c are grouped is a region in which the plurality of first anodes 20a, 20b, and 20c and the second anodes 40a, 40b, As an area defined for distinguishing the position, the area R may mean a closed area including all of the plurality of metal tanks 10a, 10b, and 10c. Each of the plurality of first anodes 20a, 20b and 20c may be installed in a ratio of 1: 1, 1: n (n is a natural number greater than 1) or n: 1 to a plurality of metal tanks 10a, 10b and 10c have.

The rectifier 60 allows the method current c to flow from the plurality of first anodes 20a, 20b, and 20c to each of the plurality of metal tanks 10a, 10b, and 10c. The first anodes 20a, 20b and 20c are connected to the (+) pole of the rectifier 60 and the metal tanks 10a, 10b and 10c are connected to the (-) pole of the rectifier 60, The coking current c flows from the first, second, third, and fourth tanks 20a, 20b, 20c to the metal tanks 10a, 10b, 10c. The potential of the metal tanks 10a, 10b, and 10c to which the method current c is supplied becomes low, and corrosion can be prevented.

The leak detection sensors 50a, 50b and 50c are connected to the lower portions of the plurality of metal tanks 10a, 10b and 10c and the lower portions of the pipes 12a, 12b and 12c of the plurality of metal tanks 10a, 10b, and 10c and the piping 12a, 12b, and 12c, which are buried in the metal tanks 10a, 10b, and 10c. The pipes 12a, 12b, and 12c are provided to connect the metal tanks 10a, 10b, and 10c and the oil pump 80. [ The leakage detection sensors 50a, 50b and 50c may include a sensor of a cable structure whose resistance value changes in contact with the oil.

2, the leak detection sensors 50a, 50b and 50c can be embedded along the metal tanks 10a, 10b and 10c and the pipes 12a, 12b and 12c, Not only leakage in the tanks 10a, 10b and 10c but also leakage in the pipes 12a, 12b and 12c can be monitored.

The central control unit 70 controls the output current and / or the output voltage of the rectifier 60 and determines whether or not the leakage current is sensed according to the sensing signals of the leakage detection sensors 50a, 50b and 50c. 1 and 2, the reference electrodes 30a, 30b, and 30c may be embedded in the ground. The central control device 70 may include metal tanks 10a, 10b, and 10c, and control the output current and / or the output voltage of the rectifier 60 based on the measured potential. For example, when the reference electrodes 30a, 30b and 30c are Cu / CuSO4, the potentials of the metal tanks 10a, 10b and 10c must be equal to or less than -850 mV. The central control device 70 can increase the output of the rectifier 60 to further reduce the potential of the metal tanks 10a, 10b, and 10c.

3, the central control unit 70 may be connected to the user terminal 90 via a network 75 such as the Internet, where the user terminal 90 may be a desktop PC, a notebook, a PDA , Tablet PC, and so on. The central control unit 70 transmits a message indicating the potential and leakage of each of the plurality of metal tanks 10a, 10b and 10c to the reference electrodes 30a, 30b and 30c to the user terminal 90, It is possible to provide information on whether the manner of the plurality of metal tanks 10a, 10b, 10c is normally maintained, whether leakage has occurred, and the like. The central control device 70 may also adjust the output voltage and / or the output current of the rectifier 60 under the control of the user terminal 90. [ The user terminal 90 may be provided with an application for receiving a message from the central control unit 70 and for transmitting a control command to the central control unit 70. [

The corrosion system according to an embodiment of the present invention may further include a second anode 40a, 40b, 40c in which a plurality of metal tanks 10a, 10b, 10c are buried in a region R . The second anodes 40a, 40b and 40c are provided for the shielding regions of the metal tanks 10a, 10b and 10c which can not receive the bimodal current c from the plurality of first anodes 20a, 20b and 20c . Like the first anodes 20a, 20b and 20c, the second anodes 40a, 40b and 40c are connected to the (+) pole of the rectifier 60 and correspondingly the metal tanks 10a, 10b and 10c And is connected to the (-) pole of the rectifier 60. The second anodes 40a, 40b, and 40c may be made of MMO (mixed metal oxide). The first anodes 20a, 20b, and 20c may be formed of MMO.

2, reclosers 14a and 14b are provided between the metal tanks 10a, 10b and 10c and the rectifier 60 or between the first anodes 20a, 20b and 20c and the rectifier 60, , 14c may be provided. The reclosers 14a, 14b and 14c prevent a rectifier 60 from being destroyed or malfunctioned due to a surge flowing through the rectifier 60. [ The reclosers 14a, 14b and 14c are connected in series to a tripping operation to shut off the connection between the metal tanks 10a, 10b and 10c and the rectifier 60 or between the first anodes 20a, 20b and 20c and the rectifier 60, A reclosing operation for reconnecting between the metal tanks 10a, 10b and 10c and the rectifier 60 or between the first anodes 20a, 20b and 20c and the rectifier 60 after the cutoff operation, Surge protection is performed while performing a permanent open operation (lockout) to permanently shut off the connection between the rectifier 60 and the first anodes 20a, 20b, 20c and the rectifier 60 .

On the other hand, in the case of installing the system, there are many cases where the owner who owns the system installs the system himself. However, when the owner who does not have knowledge about the system erroneously installs the system, the metal tanks 10a, 10b, 10c ) May cause the corrosion to proceed more quickly. For example, the metal tanks 10a, 10b and 10c are connected to the negative pole of the rectifier 60 and the first anodes 20a, 20b and 20c are connected to the positive pole of the rectifier 60 When the owner connects the metal tanks 10a, 10b and 10c and the first anodes 20a, 20b and 20c in the opposite manner, a method current flows from the metal tanks 10a, 10b and 10c to the first anodes 20a, 20b, and 20c, so that the corrosion of the metal tanks 10a, 10b, and 10c increases more rapidly.

In order to solve such a problem, the central control device 70 controls the output current of the rectifier 60 to the first anodes 20a, 20b, 20c of any one of the first anodes 20a, 20b, When the potentials of the metal tanks 10a, 10b and 10c corresponding to one of the first anodes 20a, 20b and 20c are increased when the output voltage is increased, any one of the first anodes 20a, 20b, 20c and the metal tanks 10a, 10b, 10c are connected to the rectifier 60 by mistake.

4 is a graph showing the relationship between the output current and / or the output voltage of the rectifier 60 when the polarities of the first anodes 20a, 20b, 20c and the metal tanks 10a, 10b, 10a, 10b, and 10c. 4, when the potential increases from p1 to p2, even though the output current and / or the output voltage of the rectifier 60 for one of the first anodes 20a, 20b and 20c is increased, The device 70 determines that the polarity connection is reversed.

If the polarities of the first anodes 20a, 20b and 20c and the metal tanks 10a, 10b and 10c are incorrect, the central control unit 70 determines that the polarity connection is wrong through output devices such as speakers, And may transmit the corresponding message to the user terminal 90. [0050]

5 is a diagram illustrating a system of systems according to another embodiment of the present invention.

5, a corrosion system according to another embodiment of the present invention includes a plurality of metal tanks 10a, 10b, and 10c, a plurality of first anodes 20a, 20b, and 20c A plurality of reference electrodes 30a, 30b and 30c, a plurality of second anodes 40a, 40b and 40c, a plurality of reclosers 14a, 14b and 14c, a rectifier 60 and a central control unit 70, . ≪ / RTI > 2, the leak detecting sensors 50a, 50b and 50c are omitted from the aeration system and instead the reference electrodes 30a, 30b and 30c are connected to the lower portions of the metal tanks 10a, 10b and 10c . In the system according to another embodiment of the present invention, the reference electrodes 30a, 30b, and 30c perform leak detection together with the leak detection sensors 50a, 50b, and 50c.

When the potential of any one of the metal tanks 10a, 10b, 10c measured relative to the reference electrodes 30a, 30b, 30c is changed beyond a preset value within a predetermined time range, It can be determined that oil leakage has occurred in any one of the metal tanks 10a, 10b, and 10c.

When the oil leaking from the metal tanks 10a, 10b and 10c flows in the direction of the reference electrodes 30a, 30b and 30c, the reference electrodes 30a, 30b and 30c themselves and the reference electrodes 30a, 30b and 30c The electric potentials measured in the metal tanks 10a, 10b, and 10c can be greatly changed due to the change in electrical characteristics of the surrounding environment. The central control unit 70 senses the sudden change in potential and determines whether or not the metal tanks 10a, 10b, and 10c are leaking.

6 is a graph showing potential changes of the metal tanks 10a, 10b, and 10c when leakage occurs in the metal tanks 10a, 10b, and 10c. 6, when the amount of change p4-p3 of the potentials of the metal tanks 10a, 10b, 10c for a predetermined time range t2-t1 exceeds a predetermined value, the central control device 70 , It can be determined that oil leakage has occurred in the corresponding metal tanks 10a, 10b, and 10c. Here, the preset time range and preset values can be set variously by the administrator.

The central control unit 70 may output a message indicating that leakage has been detected through an output device such as a speaker, a printer, or a display, and may transmit the message to the user terminal 90.

5, leaking of the metal tanks 10a, 10b, and 10c can be sensed by utilizing only the reference electrodes 30a, 30b, and 30c, Thus saving the cost of purchasing and burial.

The system having leak detection function according to an embodiment of the present invention can prevent corrosion of the metal tanks 10a, 10b, and 10c buried in the ground, and can prevent leakage of the metal tanks 10a, 10b, And can be easily detected. In addition, the system with leak detection function according to an embodiment of the present invention can prevent economic and environmental damage due to corrosion of the metal tanks 10a, 10b, and 10c.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10a, 10b, 10c: Metal tank
12a, 12b, 12c: piping
14a, 14b, 14c:
20a, 20b, 20c: a first anode
30a, 30b, 30c:
40a, 40b, 40c: a second anode
50a, 50b, 50c: leak detection sensor
60: rectifier
70: Central control device
80: Lubricator
90: User terminal

Claims (11)

In a system for a plurality of metal tanks buried in the ground,
A plurality of first anodes buried outside the plurality of metal tanks;
A rectifier for allowing a method current to flow from the plurality of first anodes to each of the plurality of metal tanks;
A leakage detection sensor embedded in a lower portion of each of the plurality of metal tanks and a lower portion of a pipe of each of the plurality of metal tanks and sensing leakage in pipes of a plurality of metal tanks and a plurality of metal tanks; And
And a central control unit for controlling at least one of an output voltage and an output current of the rectifier and determining whether the leakage current is leaked according to a sensing signal of the leakage detection sensor.
The method according to claim 1,
The system comprises:
Further comprising a second anode buried in the region where the plurality of metal tanks are arranged,
Wherein the rectifier causes a method current to flow from the second anode to each of the plurality of metal tanks.
3. The method of claim 2,
And the second anode includes:
And a mixed metal oxide (MMO).
The method according to claim 1,
The system comprises:
Further comprising a reference electrode buried in the ground,
The central control device includes:
And controls at least one of the output current and the output voltage of the rectifier to each of the plurality of first anodes based on the potential of each of the plurality of metal tanks measured relative to the reference electrode.
5. The method of claim 4,
The central control device includes:
When at least one of the output current and the output voltage of the rectifier for any one of the plurality of first anodes is increased and the potential of the metal tank corresponding to any one of the first anodes is increased, And outputs a message indicating that the polarity connection of one of the first anodes is erroneous.
6. The method of claim 5,
The central control device includes:
And a message indicating that the polarity of one of the first polarities is incorrect is transmitted to the user terminal.
The method according to claim 1,
And a recloser is connected between each of the plurality of metal tanks and the rectifier or between the plurality of first anodes and the rectifier.
The method according to claim 1,
In the above-described piping,
And connecting each of the plurality of metal tanks to a ground oil located on the ground.
The method according to claim 1,
The central control device includes:
And transmits a message indicating the potential of each of the plurality of metal tanks to the reference electrode and whether or not the metal tanks are leaked to the user terminal.
10. The method of claim 9,
The central control device includes:
And adjusts at least one of an output voltage and an output current of the rectifier under the control of the user terminal.
A system for a plurality of metal tanks buried in the ground,
A plurality of first anodes buried in an outer portion of a region where the plurality of metal tanks are arranged;
A rectifier for allowing a method current to flow from the plurality of first anodes to each of the plurality of metal tanks;
A reference electrode embedded in a lower portion of the plurality of metal tanks; And
And a central control unit for controlling at least one of an output current and an output voltage of the rectifier to each of the plurality of first anodes based on the potential of each of the plurality of metal tanks measured relative to the reference electrode,
The central control device determines that any one of the metal tanks measured as the reference electrode is leaking when the potential of the metal tanks exceeds a predetermined value within a predetermined time range Feature system.
KR1020150166446A 2015-11-26 2015-11-26 Anticorrosion system having oilleak detecting function KR102031108B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150166446A KR102031108B1 (en) 2015-11-26 2015-11-26 Anticorrosion system having oilleak detecting function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150166446A KR102031108B1 (en) 2015-11-26 2015-11-26 Anticorrosion system having oilleak detecting function

Publications (2)

Publication Number Publication Date
KR20170061433A true KR20170061433A (en) 2017-06-05
KR102031108B1 KR102031108B1 (en) 2019-10-14

Family

ID=59223057

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150166446A KR102031108B1 (en) 2015-11-26 2015-11-26 Anticorrosion system having oilleak detecting function

Country Status (1)

Country Link
KR (1) KR102031108B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100221253B1 (en) * 1990-01-23 1999-09-15 다이안 케이. 슈마쳐 Controllable recloser for power line
KR20030014028A (en) * 2001-08-10 2003-02-15 한국전기연구원 Corrosion Prediction System of Underground Metallic Tank
JP2005015825A (en) * 2003-06-24 2005-01-20 Tokyo Gas Co Ltd Cathodic protection management device for pipeline, cathodic protection management program, and cathodic protection management system
KR20050077901A (en) * 2004-01-29 2005-08-04 정경수 Apparatus for electric protection against corrosion for oil tank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100221253B1 (en) * 1990-01-23 1999-09-15 다이안 케이. 슈마쳐 Controllable recloser for power line
KR20030014028A (en) * 2001-08-10 2003-02-15 한국전기연구원 Corrosion Prediction System of Underground Metallic Tank
JP2005015825A (en) * 2003-06-24 2005-01-20 Tokyo Gas Co Ltd Cathodic protection management device for pipeline, cathodic protection management program, and cathodic protection management system
KR20050077901A (en) * 2004-01-29 2005-08-04 정경수 Apparatus for electric protection against corrosion for oil tank

Also Published As

Publication number Publication date
KR102031108B1 (en) 2019-10-14

Similar Documents

Publication Publication Date Title
US10429268B2 (en) Leakage monitoring system for geomembranes
US20240060189A1 (en) Test station assemblies for monitoring cathodic protection of structures and related methods
CN105695997A (en) Safety protection method for underground metal pipeline
CN104651853A (en) Cathode protection monitoring device and method
CN106896299A (en) Method for testing insulating property of pipeline insulating device
CN102353628B (en) Polarization testing probe and testing method for cathodic protection of underground steel pipelines
CN110609221A (en) Automatic monitoring device for pipeline insulating joint and application method thereof
Gong et al. Advanced analysis of HVDC electrodes interference on neighboring pipelines
CN102798803A (en) Method for detecting line fault of power distribution network
CN205635784U (en) Pipeline cathodic protection testing system
KR20170061433A (en) Anticorrosion system having oilleak detecting function
Ahmed et al. Designing in-house cathodic protection system to assess the long-term integrity of natural gas pipelines
WO2016093572A1 (en) Electric anticorrosive potential measurement electrode unit
CN111254443A (en) Seawater pipeline stray current detection and control device and method
KR20150036895A (en) Discrimination and restoration method for detecting fault section of submarine cable
CN114878992B (en) Pipeline insulation monitoring method and device
US20190219624A1 (en) Buried gas pipeline multi-measurement device
KR20230116417A (en) System for detect leaks based on density distribution of current for anticorrosion
KR101480781B1 (en) pole type protective potential test box for gas pipe
CN111220536A (en) Method, device and system for detecting corrosion probability of pipeline
CN206070004U (en) Device for inhibiting current leakage of cathode protection system
CN107561387B (en) Distribution network line loss abnormity positioning device
JP2021117009A (en) Gas safety device
JP2011117910A (en) Coating damage detection method of buried pipe, and coating damage detection system of the same
CN204857989U (en) Metal ground net convenient to confirm to corrode position

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E701 Decision to grant or registration of patent right