KR102652545B1 - Impressed current cathodic protection system for pipe - Google Patents
Impressed current cathodic protection system for pipe Download PDFInfo
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- KR102652545B1 KR102652545B1 KR1020190133485A KR20190133485A KR102652545B1 KR 102652545 B1 KR102652545 B1 KR 102652545B1 KR 1020190133485 A KR1020190133485 A KR 1020190133485A KR 20190133485 A KR20190133485 A KR 20190133485A KR 102652545 B1 KR102652545 B1 KR 102652545B1
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- pipe
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- 238000004210 cathodic protection Methods 0.000 title description 10
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 125000006850 spacer group Chemical group 0.000 claims abstract description 20
- 238000005536 corrosion prevention Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- GTKRFUAGOKINCA-UHFFFAOYSA-M chlorosilver;silver Chemical compound [Ag].[Ag]Cl GTKRFUAGOKINCA-UHFFFAOYSA-M 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
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- 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
-
- 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
- C23F13/04—Controlling or regulating desired parameters
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
-
- 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
- C23F2213/32—Pipes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
배관의 부식방지시스템이 개시된다. 본 발명의 실시예에 따른 배관의 부식방지시스템은, 유체가 통과하는 배관인 캐소드와, 상기 배관의 플랜지와 연결되고, 상기 배관 내의 유체와 접하는 애노드를 가지고 있는 스페이서와, 상기 스페이서의 애노드 및 상기 캐소드와 애노드케이블 및 캐소드케이블로 각각 연결된 전원공급장치와, 상기 전원공급장치와 연결된 컨트롤러와, 상기 배관의 유체에 접하고, 상기 컨트롤러에 전극케이블로 연결되어 상기 컨트롤러에 전위차 정보를 제공하는 기준전극을 포함하여 이루어진다.A corrosion prevention system for pipes is disclosed. A pipe corrosion prevention system according to an embodiment of the present invention includes a cathode, which is a pipe through which a fluid passes, a spacer connected to a flange of the pipe and having an anode in contact with the fluid in the pipe, an anode of the spacer, and the anode of the pipe. A power supply device connected to a cathode, an anode cable, and a cathode cable, a controller connected to the power supply device, and a reference electrode that is in contact with the fluid in the pipe and connected to the controller with an electrode cable to provide potential difference information to the controller. It is done including.
Description
본 발명은 배관의 부식방지시스템에 관한 것으로, 보다 상세하게는 전류인가형 음극방식을 이용한 배관의 부식방지시스템에 관한 것이다.The present invention relates to a corrosion prevention system for pipes, and more specifically, to a corrosion prevention system for pipes using current-applied cathodic protection.
금속의 부식이란, 금속이 주어진 환경의 성분과 화합하여 비금속산화물을 만들어 금속으로의 성질과 성능을 잃고 소모해가는 현상을 말한다. 따라서 부식은 금속제품의 수명이나 성능에 관계되는 중요한 문제이고, 제품이나 혹은 기계부품의 질저하로 인한 사고발생의 원인이 된다.Corrosion of metals refers to a phenomenon in which metals combine with components of a given environment to form non-metallic oxides, losing their properties and performance as metals and being consumed. Therefore, corrosion is an important problem related to the lifespan or performance of metal products, and it can cause accidents due to deterioration of the quality of products or mechanical parts.
일반적으로 부식방지(CORROSION PROTECTION)를 위해서는 일반적으로 도료를 이용한 코팅(coating)이 방법으로 채택되고 있으며, 해수와 접하는 선체 외판은 에폭시 및 페인트 등으로 도장함으로써 코팅되도록 하고 있다.In general, coating using paint is generally adopted as a method for corrosion prevention, and the hull shell plating in contact with seawater is coated by painting with epoxy or paint.
그러나 아무리 우수한 도료라 할지라도 기간경과에 따른 국부적인 손상은 불가피하며 또한 선미에 설치되는 프로펠러 등의 장비에 사용되는 금속재질이 선체 외판과는 서로 상이하여 바닷물에 노출되는 선체 외판의 부식속도는 가속되고 따라서 관련 장비의 설치가 요구되게 되었다.However, no matter how good the paint is, local damage is inevitable over time, and the metal material used in equipment such as the propeller installed at the stern is different from the hull shell, so the corrosion rate of the hull shell exposed to seawater is accelerated. Therefore, installation of related equipment became required.
그리하여 이 같은 코팅에 의한 부식방지방법의 부족함을 보완하기 위한 방법으로서 희생양극(SACRIFICIAL ANODE)에 의한 음극보호방식(CATHODIC PROTECTION)이 안출되었으며, 선체 외판 주요 부위에 희생양극을 부착하게 됐다. Therefore, as a method to compensate for the lack of corrosion prevention methods using such coatings, cathodic protection using sacrificial anodes was developed, and sacrificial anodes were attached to major parts of the hull shell.
이러한 음극보호방식은 양극의 전자가 음극으로 이동되어 음극이 분극(polarization)이 되고 양극이 희생된다는 의미에서 희생양극(sacrificial anode)이라고 불리며 구조물의 금속보다 더욱 "능동적인(active)"전압을 가진, 즉 이온화경향이 큰 금속 합금으로 만들어진다.This cathodic protection method is called a sacrificial anode in the sense that electrons from the anode are transferred to the cathode, polarizing the cathode and sacrificing the anode, and has a more “active” voltage than the metal of the structure. , that is, it is made of a metal alloy with a high ionization tendency.
그러나, 이 방법은 일정기간내 소모된 희생양극(ZINC,ALUMINIUM,MAGNESIUM ANODE)을 교체해 주어야 한다는 불편함과 비용 등이 발생하므로 이를 해소하기 위한 요구가 대두되어 지속적 사용 가능한 음극보호방식으로서 ICCP(IMPRESSED CURRENT CATHODIC PROTECTION) 시스템이 등장하게 된 것이다. However, this method causes the inconvenience and cost of having to replace the sacrificial anode (ZINC, ALUMINIUM, MAGNESIUM ANODE) that has been consumed within a certain period of time, so there is a need to solve this problem, and ICCP (IMPRESSED CURRENT) is used as a continuously usable cathode protection method. The CATHODIC PROTECTION system appeared.
ICCP 시스템은 외부에서 전원을 사용하여 강제적으로 대상금속을 음극화하는 방식으로서 외부전원방식이라고도 하며, 이에 따르면 음극을 분극시키기 위하여 외부에서 전류를 인가하게 되는데, 이때 외부의 전원을 공급할 수 있는 정류기가 필요하고, 양극으로는서는 불용성 전극인 흑연, 고실리콘주철 등이 사용된다.The ICCP system is a method of forcibly cathodicizing the target metal using an external power source, also called the external power method. According to this, a current is applied from the outside to polarize the cathode. At this time, a rectifier that can supply external power is used. It is necessary, and insoluble electrodes such as graphite and high-silicon cast iron are used as the anode.
도 1은 이러한 외부전원방식의 개념을 이해할 수 있는 개략블록도이다. 여기서 보호하고자 하는 구조물이 캐소드(4)가 된다. 음극보호방식과는 다르게 전원(6)이 인가되며, 애노드(3)에서 전자가 캐소드(4)로 전달되고, 애노드(3)와 캐소드(4)는 전해질 용액(2)을 통해 연결된다. Figure 1 is a schematic block diagram to help understand the concept of this external power method. Here, the structure to be protected becomes the cathode (4). Unlike the cathodic protection method, power (6) is applied, electrons are transferred from the anode (3) to the cathode (4), and the anode (3) and cathode (4) are connected through the electrolyte solution (2).
기준전극(reference electrode)(7)은 일정한 전위를 가지고 전위의 기준이 되는 전극이며, 기준전극(7)과 다른 전극으로 전지를 만들어 그 기전력을 측정하면, 기준전극(7)의 전위(electric potential)는 이미 알고 있으므로 측정하는 다른 전극의 전위를 알 수 있는 것이다. The reference electrode (7) is an electrode that has a constant potential and serves as a reference for electric potential. When a battery is made with an electrode different from the reference electrode (7) and the electromotive force is measured, the electric potential of the reference electrode (7) is measured. ) is already known, so the potential of the other electrode being measured can be known.
따라서 여기서 기준전극(7)은 캐소드(cathode)와 환경 또는 전해질과의 전위를 결정하기 위한 것으로서, 컨트롤러는 캐소드(4)와의 전위차를 판단하여 애노드(3)로의 추가적인 전류 공급여부를 판단하게 한다. 여기서 부호5는 전류계(A)이다.Therefore, here, the reference electrode 7 is used to determine the potential between the cathode and the environment or electrolyte, and the controller determines whether to supply additional current to the anode 3 by determining the potential difference with the cathode 4. Here, symbol 5 is the ammeter (A).
일반적으로 애노드(3)는 희생양극과 달리 그래파이트(graphite), 플래티넘(platinum)과 같은 불용성 금속이 사용된다.Generally, the anode 3, unlike the sacrificial anode, is made of an insoluble metal such as graphite or platinum.
한편, 종래의 배관 보호에 관해서는 내부 음극보호시스템(internal cathodic protection system, 미국특허 7,081,187호)와 배관의 내부음극보호(internal cathodic protection of pipes, 미국특허 4,140,614호) 등이 있는데, 이러한 종래기술들은 실제 적용하기에는 구조가 너무 복잡하다는 문제점이 있다.Meanwhile, regarding conventional pipe protection, there are internal cathodic protection systems (US Patent No. 7,081,187) and internal cathodic protection of pipes (US Patent No. 4,140,614), etc. These prior technologies include The problem is that the structure is too complex for practical application.
본 발명은 상기 설명한 바와 같은 외부전원방식을 이용하여 배관을 부식으로부터 보호하기 위한 장치를 제공하기 위한 것으로, 특히 그 구성이 단순하고 간단하게 적용이 가능한 부식방지 시스템을 제공하는 것을 그 목적으로 한다.The purpose of the present invention is to provide a device for protecting pipes from corrosion using an external power source as described above, and in particular, the purpose is to provide a corrosion prevention system that is simple in construction and can be easily applied.
그 이외에 모니터링의 용이성, 유지보수의 편이성 등 본 발명의 다른 목적은 후술하는 실시예를 통해서 잘 파악할 수 있을 것이다.In addition, other purposes of the present invention, such as ease of monitoring and convenience of maintenance, can be clearly understood through the examples described later.
상기 목적을 달성하기 위하여 제공되는 본 발명의 실시예에 따른 배관의 부식방지시스템은, 유체가 통과하는 배관인 캐소드와, 상기 배관의 플랜지와 연결되고, 상기 배관 내의 유체와 접하는 애노드를 가지고 있는 스페이서와, 상기 스페이서의 애노드 및 상기 캐소드와 애노드케이블 및 캐소드케이블로 각각 연결된 전원공급장치와, 상기 전원공급장치와 연결된 컨트롤러와, 상기 배관의 유체에 접하고, 상기 컨트롤러에 전극케이블로 연결되어 상기 컨트롤러에 전위차 정보를 제공하는 기준전극을 포함하여 이루어진다.A pipe corrosion prevention system according to an embodiment of the present invention provided to achieve the above object includes a cathode, which is a pipe through which a fluid passes, and a spacer that is connected to the flange of the pipe and has an anode in contact with the fluid in the pipe. and a power supply device connected to the anode and cathode of the spacer with an anode cable and a cathode cable, a controller connected to the power supply device, in contact with the fluid of the pipe, and connected to the controller with an electrode cable to the controller. It includes a reference electrode that provides potential difference information.
상기 스페이서는 유체가 통과하는 통과홀이 형성된 구조로 이루어지며, 상기 통과홀은 원형으로 이루어지며, 상기 애노드 또한 상기 통과홀과 동일한 원형으로 형성된다.The spacer has a structure in which a through hole through which a fluid passes is formed. The through hole is formed in a circular shape, and the anode is also formed in the same circular shape as the through hole.
상기 기준전극은 배관에 체결되는 체결코크를 통하여 배관에 장착된다.The reference electrode is mounted on the pipe through a fastening cock fastened to the pipe.
본 발명의 실시예에 따른 배관의 부식방지시스템에 의하면, 애노드가 양측 배관의 플랜지 사이에 설치되므로 장착, 유지, 보수 등이 편리하며, 기준전극 역시 간단한 구조로 배관에 설치되므로 유지보수가 용이하게 된다.According to the pipe corrosion prevention system according to the embodiment of the present invention, the anode is installed between the flanges of the pipe on both sides, making installation, maintenance, and repair convenient, and the reference electrode is also installed in the pipe with a simple structure, making maintenance easy. do.
또한, 기준전극에서 측정되는 전위를 통해 부식방지 시스템이 원할하게 작동되는지 확인 가능하므로 별도의 모니터링이 필요없게 된다.In addition, it is possible to check whether the corrosion prevention system is operating smoothly through the potential measured at the reference electrode, so there is no need for separate monitoring.
도 1은 종래 외부전원방식의 부식방지시스템의 개념을 나타낸 개략적인 구성도이다.
도 2는 본 발명의 실시예에 따른 부식방지시스템의 실시예를 나타낸 도면이다.
도 3은 본 발명의 실시예에 따른 부식방지시스템에 적용되는 스페이서와 전극의 구성을 나타낸 도면이다.
도 4는 본 발명의 실시예에 따른 부식방지시스템에 적용되는 기준전극의 구성을 나타낸 도면이다.
도 5는 본 발명의 실시예에 따른 부식방지시스템의 다른 실시예를 나타낸 도면이다.Figure 1 is a schematic diagram showing the concept of a conventional external power corrosion prevention system.
Figure 2 is a diagram showing an example of a corrosion prevention system according to an embodiment of the present invention.
Figure 3 is a diagram showing the configuration of a spacer and an electrode applied to a corrosion prevention system according to an embodiment of the present invention.
Figure 4 is a diagram showing the configuration of a reference electrode applied to a corrosion prevention system according to an embodiment of the present invention.
Figure 5 is a diagram showing another embodiment of a corrosion prevention system according to an embodiment of the present invention.
이하, 본 발명의 실시예에 따른 실시예를 첨부한 도면을 참조하여 자세히 설명한다.Hereinafter, embodiments according to embodiments of the present invention will be described in detail with reference to the attached drawings.
우선, 도 2에 나타난 것과 같이 본 발명의 실시예에 따른 부식장치는 양 배관(10)(10')의 플랜지(12)와 플랜지(12') 사이에 개재되는 애노드(20)와, 캐소드 그리고 기준전극(30)을 포함하여 이루어진다.First, as shown in Figure 2, the corrosion device according to an embodiment of the present invention includes an anode 20 interposed between the flange 12 and the flange 12' of both pipes 10 and 10', a cathode, and It includes a reference electrode (30).
상기 애노드(20)는 스페이서(22) 내에 구비되어 있으며, 애노드(20)와 캐소드는 전원공급장치(40)와 연결되어 있고, 기준전극(30)은 컨트롤러(50)를 통해 전원공급장치(40)와 연결된다. The anode 20 is provided in the spacer 22, the anode 20 and the cathode are connected to the power supply 40, and the reference electrode 30 is connected to the power supply 40 through the controller 50. ) is connected to.
한편, 본 실시예에서 상기 캐소드는 보호받고자 하는 일측의 배관(10) 그 자체가 되며, 애노드(20)는 가볍고, 기계적 성능이 우수하고, 저가인 MMO-티타늄(MMO Coated Titanium)으로 이루어질 수 있다. 이는 불용성이므로 사용조건에 따라 10-20년간 별도의 교체없이 가능하다. Meanwhile, in this embodiment, the cathode is the pipe 10 itself on one side to be protected, and the anode 20 may be made of MMO-titanium (MMO Coated Titanium), which is light, has excellent mechanical performance, and is inexpensive. . Since it is insoluble, it can be used without replacement for 10-20 years depending on usage conditions.
도 3에 나타난 것과 같이 애노드(20)는 스페이서(22)에 탑재되는 형태로 구성되며, 상기 스페이서(22)는 예를 들어 원형으로서 가운데에 유체가 통과하는 통과홀(22a)이 형성되어 있고, 상기 애노드(20) 역시 통과홀(22a)을 둘러싸는 원형으로 형성되어 있다. As shown in FIG. 3, the anode 20 is configured to be mounted on a spacer 22. The spacer 22 is, for example, circular and has a through hole 22a in the center through which fluid passes, The anode 20 is also formed in a circular shape surrounding the through hole 22a.
그런데, 상기 애노드(20)의 모양이 원형으로 한정될 필요는 없으며, 반원형태 혹은 사각형태도 가능하다. 단, 배관(10)과 배관(10')사이에 설치되는 특성상 유체가 통과하는 상기 통과홀(22a)이 확보되어야 하며, 유체의 흐름을 방해하지 않는 위치에 설치되는 것이 바람직하다. However, the shape of the anode 20 does not need to be limited to a circle, and a semicircular or square shape is also possible. However, due to the nature of the installation between the pipe 10 and the pipe 10', the passage hole 22a through which fluid passes must be secured, and it is desirable to install it in a location that does not obstruct the flow of fluid.
한편, 상기 애노드(20)는 외부의 전원공급장치(DC POWER SUPPLIER)(40) 즉, 정류자(rectifier)와 연결되어야 한다. 이를 위해 스페이서(22)에는 애노드케이블(201)을 보호하는 케이블포트(221)가 구비된다. Meanwhile, the anode 20 must be connected to an external power supply (DC POWER SUPPLIER) 40, that is, a rectifier. For this purpose, the spacer 22 is provided with a cable port 221 that protects the anode cable 201.
한편, 스페이서(22)는 인접하는 대상물 사이에 위치하여 공간을 확보하기 위한 구조물로서, 금속제, 수지제 등이 있으며, 절연성이나 내열성 등의 이용목적에 따라 다양한 형태와 소재로 이루어질 수 있다. Meanwhile, the spacer 22 is a structure located between adjacent objects to secure space, and is made of metal, resin, etc., and can be made of various shapes and materials depending on the purpose of use, such as insulation or heat resistance.
따라서 도 3에서와 같이 스페이서(22)의 형태는 예시적으로 원형으로 이루어질 수 있으나, 특정한 형태로 한정될 필요는 없으며, 배관(10)(10')의 플랜지(12)(12')가 일반적으로 원형이므로, 플랜지(12)(12')와의 구조적인 조화를 위해 동일하게 원형으로 이루어지는 것이 바람직하다. Therefore, as shown in FIG. 3, the shape of the spacer 22 may be illustratively circular, but there is no need to be limited to a specific shape, and the flange 12 (12') of the pipe 10 (10') is generally used. Since it is circular, it is desirable to have the same circular shape for structural harmony with the flange 12 (12').
즉, 스페이서(22)는 플랜지(12)(12')와 결합된다는 점, 그리고 애노드(20)가 탑재되고, 외부로 애노드케이블(201)이 도출될 수 있도록 하는 케이블포트(221)가 갖추어져 있고, 통과홀(22a)이 구성되어 유체가 통과할 수 있는 기능을 가지면 그 형태에 제한은 없다고 볼 수 있다.That is, the spacer 22 is coupled to the flange 12 (12'), the anode 20 is mounted, and a cable port 221 is provided to allow the anode cable 201 to be output to the outside. , if the through hole 22a is configured and has the function of allowing fluid to pass through, it can be seen that there are no restrictions on its shape.
그리고, 본 실시예에서는 앞서 설명한 바와 같이 일측배관(10)이 캐소드가 된다. 즉 외부전원방식에서는 보호하고자 하는 대상이 캐소드가 되는 것이고, 캐소드는 전원공급장치(40)와 캐소드케이블(101)로 연결됨으로써, 애노드(20)로부터 전자를 받아서 네거티브 분극되어 부식이 방지된다. And, in this embodiment, as described above, one side pipe 10 becomes a cathode. That is, in the external power method, the object to be protected is the cathode, and the cathode is connected to the power supply 40 and the cathode cable 101, so that it receives electrons from the anode 20 and is negatively polarized to prevent corrosion.
한편, 상기 캐소드(배관)에서는 환원반응이 일어나므로 수소가 발생하게 되며 이때 발생한 수소의 양과 사용환경에 따라 수소를 포집하는 구조를 가지거나 배출되도록 하는 배출구(ventilation)(도면상 도시 생략)를 별도로 둘 수 있다.Meanwhile, a reduction reaction occurs in the cathode (piping), so hydrogen is generated. Depending on the amount of hydrogen generated at this time and the usage environment, a separate ventilation outlet (not shown in the drawing) is installed to either have a structure to collect hydrogen or to discharge it. You can put it.
도 4에 나타난 것과 같이 상기 기준전극(30)은 체결코크(32) 내에 구비되어 있으며, 상기 체결코크(32)는 상기 배관(10)에 나사결합 등의 방식으로 체결되며, 기준전극(30)은 체결코크(32)에서 배관(10) 내로 돌출되어 배관 내를 유동하는 유체와 접하게 된다.As shown in Figure 4, the reference electrode 30 is provided in the fastening cock 32, and the fastening cock 32 is fastened to the pipe 10 by screwing, etc., and the reference electrode 30 protrudes from the fastening cock 32 into the pipe 10 and comes into contact with the fluid flowing within the pipe.
상기 기준전극(30)은 잘 알려진 은-염화은 전극(Ag/AgCl Reference Electrode) 소재로 이루어질 수 있다.The reference electrode 30 may be made of a well-known silver-silver chloride electrode (Ag/AgCl Reference Electrode) material.
또한, 상기 기준전극(30)은 전극케이블(301)에 의해 컨트롤러(50)에 연결되며, 상기 컨트롤러(50)는 기준전극(30)에서 측정된 캐소드와의 전위차를 파악하여 전원공급장치(40)에서 애노드(20)로 보내는 전류의 크기를 결정하고 지시하게 된다. In addition, the reference electrode 30 is connected to the controller 50 by an electrode cable 301, and the controller 50 determines the potential difference between the reference electrode 30 and the cathode and controls the power supply 40. ) determines and indicates the size of the current sent to the anode 20.
즉, 기준전극(30)은 배관(10) 내부의 유체와 접하여야 되고, 배관(10)의 바깥쪽을 통해서 체결되면서 실링이 보장되어야 하고, 전극케이블(301)을 통해서 컨트롤러(50)와 연결된다.That is, the reference electrode 30 must be in contact with the fluid inside the pipe 10, sealing must be guaranteed by being fastened through the outside of the pipe 10, and connected to the controller 50 through the electrode cable 301. do.
따라서, 사용자는 컨트롤러(50)에서 파악되는 기준전극(30)과 캐소드(배관)와의 전위차를 통해 본 발명의 실시예에 따른 부식방지시스템이 원할하게 작동되는지를 알 수 있게 되므로 별도의 모니터 장치가 필요없게 된다.Therefore, the user can know whether the corrosion prevention system according to an embodiment of the present invention operates smoothly through the potential difference between the reference electrode 30 and the cathode (piping) detected by the controller 50, so a separate monitor device is required. It becomes unnecessary.
한편, 본 발명의 실시예에 따르면 도 5에 나타난 것과 같이, 두 개의 배관이 연결되어 유체가 유동되는 구성이 아닌 일측이 차폐되는 배관(10“)의 플랜지(12”)에 애노드(20)를 장착할 수도 있다.Meanwhile, according to an embodiment of the present invention, as shown in FIG. 5, the anode 20 is connected to the flange 12" of the pipe 10", where one side is shielded, rather than the configuration in which two pipes are connected and fluid flows. It can also be installed.
이때, 상기 애노드(20)가 탑재되는 스페이서(23)는 통과홀이 없으며, 애노드(20)만 유체에 노출되도록 구성된다.At this time, the spacer 23 on which the anode 20 is mounted has no through hole and is configured so that only the anode 20 is exposed to the fluid.
상기에서는 본 발명의 바람직한 실시예를 참조하여 설명하였지만, 해당 기술분야의 통상의 기술자는 하기의 특허청구범위에 기재된 본 발명의 기술적 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.Although the present invention has been described above with reference to preferred embodiments, those skilled in the art may make various modifications and changes to the present invention without departing from the technical spirit and scope of the present invention as set forth in the claims below. You will understand that you can do it.
10: 배관 12: 플랜지
20: 애노드 22: 스페이서
22a: 통과홀 221: 케이블포트
30: 기준전극 32: 체결코크
40: 전원공급장치 50: 컨트롤러10: Piping 12: Flange
20: anode 22: spacer
22a: Passing hole 221: Cable port
30: Reference electrode 32: Fastening cock
40: power supply 50: controller
Claims (5)
상기 배관의 플랜지와 연결되고, 유체가 통과하며 원형으로 이루어진 통과홀이 형성되는 스페이서와;
상기 스페이서가 상기 배관 내의 유체가 접하지 않도록 상기 스페이서의 상기 통과홀 둘레에 원형으로 마련되어 상기 스페이서에 의해 둘러지며, 상기 배관 내의 유체와 접하는 애노드와;
상기 애노드 및 상기 캐소드와 애노드케이블 및 캐소드케이블로 각각 연결된 전원공급장치와;
상기 전원공급장치와 연결된 컨트롤러와;
상기 배관의 유체에 접하고, 상기 컨트롤러에 전극케이블로 연결되어 상기 컨트롤러에 전위차 정보를 제공하는 기준전극을 포함하되,
상기 스페이서는,
상기 애노드가 외부의 전원공급장치인 정류자와 연결되도록 하기 위해, 상기 애노드케이블을 보호하는 케이블포트가 구비되는 배관의 부식방지시스템.A cathode, which is a pipe through which a fluid passes;
a spacer connected to the flange of the pipe and forming a circular through hole through which fluid passes;
an anode provided in a circular shape around the passage hole of the spacer so that the spacer does not come into contact with the fluid in the pipe, surrounded by the spacer, and in contact with the fluid in the pipe;
a power supply device connected to the anode and the cathode by an anode cable and a cathode cable, respectively;
A controller connected to the power supply device;
It includes a reference electrode that is in contact with the fluid in the pipe and is connected to the controller with an electrode cable to provide potential difference information to the controller,
The spacer is,
A corrosion prevention system for piping provided with a cable port that protects the anode cable in order to connect the anode to a commutator that is an external power supply.
상기 기준전극은 배관에 체결되는 체결코크를 통하여 배관에 장착되는 것
을 특징으로 하는 배관의 부식방지시스템.According to paragraph 1,
The reference electrode is mounted on the pipe through a fastening cock fastened to the pipe.
A piping corrosion prevention system characterized by .
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| JP2016017189A (en) * | 2014-07-07 | 2016-02-01 | 株式会社日立製作所 | Electric anticorrosion method, and electric anticorrosion system |
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| JP2016017189A (en) * | 2014-07-07 | 2016-02-01 | 株式会社日立製作所 | Electric anticorrosion method, and electric anticorrosion system |
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