WO2011096910A1 - Anode for protecting metal pipelines and constructions - Google Patents

Anode for protecting metal pipelines and constructions Download PDF

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Publication number
WO2011096910A1
WO2011096910A1 PCT/UA2010/000069 UA2010000069W WO2011096910A1 WO 2011096910 A1 WO2011096910 A1 WO 2011096910A1 UA 2010000069 W UA2010000069 W UA 2010000069W WO 2011096910 A1 WO2011096910 A1 WO 2011096910A1
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WO
WIPO (PCT)
Prior art keywords
anode
constructions
anodes
metal pipelines
protection
Prior art date
Application number
PCT/UA2010/000069
Other languages
French (fr)
Russian (ru)
Inventor
Юрий Александрович БАЛАШОВ
Александр Николаевич БАЛАШОВ
Original Assignee
Balashov Yurii Oleksandrovych
Balashov Oleksandr Mykolaiovych
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 Balashov Yurii Oleksandrovych, Balashov Oleksandr Mykolaiovych filed Critical Balashov Yurii Oleksandrovych
Priority to DE112010005218.2T priority Critical patent/DE112010005218B4/en
Publication of WO2011096910A1 publication Critical patent/WO2011096910A1/en

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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
    • 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
    • C23F13/16—Electrodes characterised by the combination of the structure and the material
    • 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

Definitions

  • the invention relates to the field of electrochemical protection, namely to corrosion protection of underground and underwater metal pipelines and structures.
  • electrochemical (cathodic) protection the basis of which is the anode [1, 2, 3, 4, 5].
  • An analysis of the reasons for the failure of electrochemical protection plants indicates that most failures occur due to damage to their anodes.
  • Anodes are the most critical element of the cathodic protection system, therefore their reliability is one of the determining factors in the reliability of electrochemical protection as a whole.
  • a metal anode was adopted as an analog.
  • a relatively large mass of electrodes for example, 1 pc. EGT 2500 "weighs 19.2 kg. For anodes operating under a current of 50 Amps for 10 years, their need is ⁇ 25 pieces. Their total weight is 480 kg).
  • thermostyrene which is used as a heat insulating material [7].
  • the objective of this utility model is to use a well-known product, namely flexible thermally expanded graphite as a material for an anode with a long shelf life.
  • SUBSTITUTE SHEET (RULE 26) The task is achieved by using flexible thermally expanded graphite (thermogrenite) as the anode body, which provides the anode with properties that distinguish the proposed anode from analogues:
  • the total mass of a flexible thermally expanded graphite sheet rolled 1 mm thick is 25 kg;
  • Thermographit is produced in the form of flexible sheets, foil, tape, and other products. This entire class of materials, regardless of shape, is suitable for the manufacture of anodes.
  • the anode of a flexible graphite sheet - rolled (thermally expanded) graphite (thermogenite) can be used in any soil, as well as for the cathodic protection of offshore structures. It is also possible to use the anode from Thermogrenite as grounding for power consumers, direct and alternating current power lines, lightning rods and earth drainage devices. Assembled into a single unit, in an extended design, the anodes under the action of soil movement bend at large boundaries and maintain their operability.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

Use of flexible, thermally expanded graphite as the material for manufacturing the body of an anode used for the anti-corrosion protection of subterranean and underwater metal pipelines and constructions.

Description

АНОД ДЛЯ ЗАЩИТЫ МЕТАЛЛИЧЕСКИХ ТРУБОПРОВОДОВ И СООРУЖЕНИЙ  ANODE FOR THE PROTECTION OF METAL PIPELINES AND STRUCTURES
Изобретение относится к отрасли электрохимзащиты, а именно к противокоррозионной защите подземных и подводных металлических трубопроводов и сооружений. The invention relates to the field of electrochemical protection, namely to corrosion protection of underground and underwater metal pipelines and structures.
Известно, что наиболее эффективным способом их защиты от подземной коррозии, вместе с изолирующими покрытиями, есть электрохимическая (катодный) защита, основу которой составляет анод [1 , 2, 3, 4, 5]. Анализ причин выхода из строя установок электрохимической защиты свидетельствует, что большинство отказов происходит в виду повреждений их анодов. Аноды являются наиболее ответственным элементом системы катодной защиты, поэтому их надежность является одним из определяющих факторов надежности электрохимической защиты в целом.  It is known that the most effective way to protect them from underground corrosion, together with insulating coatings, is electrochemical (cathodic) protection, the basis of which is the anode [1, 2, 3, 4, 5]. An analysis of the reasons for the failure of electrochemical protection plants indicates that most failures occur due to damage to their anodes. Anodes are the most critical element of the cathodic protection system, therefore their reliability is one of the determining factors in the reliability of electrochemical protection as a whole.
Существующие аноды имеют относительно небольшой срок использования в виду анодного растворения металла, что входит в их состав, в электролите грунта.  Existing anodes have a relatively short period of use in view of the anodic dissolution of the metal, which is part of them, in the electrolyte of the soil.
Принят за аналог анод из металла.  A metal anode was adopted as an analog.
Недостатки:  Disadvantages:
1. Большая скорость анодного растворения (согласно 1-го закона Фарад ея вычисляется M=K*J*T (где М - масса растворенного металла, К - электрохимический эквивалент (=1,04 г/А*год.) J - сила тока, Т - время действия тока) и для металла составляет 9,8кг/А*год);  1. High speed of anodic dissolution (according to the 1st Faraday law, M = K * J * T is calculated (where M is the mass of the dissolved metal, K is the electrochemical equivalent (= 1.04 g / A * year.) J is the current , T is the duration of the current) and for the metal is 9.8 kg / A * year);
1 one
ЗАМЕНЯЮЩИЙ ЛИСТ (ПРАВИЛО 26) 2. Большая масса (учитывая требования ДСТУ 4219-2003, относительно срока действия анодов (не менее 10 лет), суммарная масса анодов для тока например 50 Ампер = 9,89кг/А*год * 50 Ампер * 10 лет = 5000кг., с учетом коэффициента использования анода.); SUBSTITUTE SHEET (RULE 26) 2. Large mass (taking into account the requirements of DSTU 4219-2003, regarding the validity of the anodes (at least 10 years), the total mass of anodes for current, for example, 50 Amps = 9.89 kg / A * year * 50 Amps * 10 years = 5000 kg., S taking into account the coefficient of use of the anode.);
3. Вступает в электрохимическую и химическую реакции с электролитом грунта.  3. Enters into electrochemical and chemical reactions with soil electrolyte.
Принят за ближайший аналог один из наилучших анодов - графитный анод типа ЭГТ [6], что представляет собой анод изготовленный из графитопластовой трубы и соединителя-токовода из конструкционного графита.  One of the best anodes - a graphite anode of the EGT type [6], which is an anode made of a graphite-plastic pipe and a connector-current lead made of structural graphite, is taken as the closest analogue.
Недостатки:  Disadvantages:
1. Относительно большая скорость анодного растворения (по данным изготовителей 0,85-0,9кг/А*год - практически в 10 раз меньше от скорости анодного растворения металла).  1. A relatively high speed of anodic dissolution (according to manufacturers 0.85-0.9 kg / A * year - almost 10 times less than the speed of anodic dissolution of the metal).
2. Относительно большая масса электродов (например, 1шт. «ЭГТ 2500» весит 19,2кг. Для анодов работающих под током в 50 Ампер в течении 10 лет их потребность равняется ~ 25 штук. Их общая масса составляет 480кг).  2. A relatively large mass of electrodes (for example, 1 pc. EGT 2500 "weighs 19.2 kg. For anodes operating under a current of 50 Amps for 10 years, their need is ~ 25 pieces. Their total weight is 480 kg).
3. Вступает в электрохимическую и химическую реакции с электролитом грунта.  3. Enters into electrochemical and chemical reactions with soil electrolyte.
4. Собранные в протяжённую конструкцию, в одно целое, и смонтированные под землей аноды «ЭГТ 2500», под действием даже незначительного движения грунта, ломаются и прекращают работу;  4. The EGT 2500 anodes assembled into an extended structure, integrally, and mounted underground under the influence of even a slight movement of the soil, break down and stop working;
Известен гибкий терморасширенный графит (термографенит), который применяется как теплоизолирующий материал [7].  Known flexible thermally expanded graphite (thermographite), which is used as a heat insulating material [7].
Задачей данной полезной модели является применение известного продукта, а именно гибкого терморасширенного графита в качестве материала для анода с большим сроком действия.  The objective of this utility model is to use a well-known product, namely flexible thermally expanded graphite as a material for an anode with a long shelf life.
2 2
ЗАМЕНЯЮЩИЙ ЛИСТ (ПРАВИЛО 26) Поставленная задача достигается путем применения в качестве тела анода гибкого терморасширенного графита (термографенита), что предоставляет аноду свойства, которые выгодно отличают предложенный анод от аналогов: SUBSTITUTE SHEET (RULE 26) The task is achieved by using flexible thermally expanded graphite (thermogrenite) as the anode body, which provides the anode with properties that distinguish the proposed anode from analogues:
1. Для изготовления анодов на ток 50 Ампер, общая масса гибкого терморасширенного графитного листа раскатанного толщиной 1мм составляет 25 кг;  1. For the manufacture of anodes for a current of 50 Amps, the total mass of a flexible thermally expanded graphite sheet rolled 1 mm thick is 25 kg;
2. сверхмалая скорость растворения (0,8* 10-6кг/А*год);  2. ultralow dissolution rate (0.8 * 10-6kg / A * year);
3. Гибкость формы;  3. Flexibility of form;
4. Химическая и электрохимическая нейтральность к электролиту грунта.  4. Chemical and electrochemical neutrality to soil electrolyte.
«Термографенит» изготовляют в виде гибких листов, фольги, ленты, и других изделий. Весь этот класс материалов, независимо от формы, пригодный для изготовления анодов. Анод из гибкого графитного листа - раскатанного (терморасширенного) графита (термографенита) может быть использован в любом грунте, а также для катодной защиты морских сооружений. Анод с «Термографенита» также возможно использовать в качестве заземлений потребителей электроэнергии, линий электропередач постоянного и переменного тока, молниеотводов и земляных дренажных устройств. Собранные в одно целое, в протяжённую конструкцию, аноды под действием движения грунтов прогибаются в больших границах и сохраняют работоспособность.  “Thermographit” is produced in the form of flexible sheets, foil, tape, and other products. This entire class of materials, regardless of shape, is suitable for the manufacture of anodes. The anode of a flexible graphite sheet - rolled (thermally expanded) graphite (thermogenite) can be used in any soil, as well as for the cathodic protection of offshore structures. It is also possible to use the anode from Thermogrenite as grounding for power consumers, direct and alternating current power lines, lightning rods and earth drainage devices. Assembled into a single unit, in an extended design, the anodes under the action of soil movement bend at large boundaries and maintain their operability.
Литература:  Literature:
1. Национальный стандарт Украины ДСТУ 4219-2003 «ТРУБОПРОВОДЫ СТАЛЬНЫЕ МАГИСТРАЛЬНЫЕ ОБЩИЕ ТРЕБОВАНИЯ К ЗАЩИТЕ ОТ КОРРОЗИИ».  1. National standard of Ukraine DSTU 4219-2003 "PIPELINES STEEL MAIN GENERAL REQUIREMENTS FOR PROTECTION AGAINST CORROSION".
2. Волков Б.Г., Тесов Н.И., Шуванов В.В. «Справочник по защите подземных металлических сооружений вот коррозии изд-во Недра». 1975 год. з  2. Volkov B.G., Tesov N.I., Shuvanov V.V. "A Guide to the Protection of Underground Metal Structures Here Corrosion Publishing House Nedra." 1975 year. s
ЗАМЕНЯЮЩИЙ ЛИСТ (ПРАВИЛО 26) 3. Спецвыпуск журнала физико-химическая механика материалов «Проблемы коррозии и противокоррозионной защиты материалов» Львов ФМИ им. Г.В. Карпенка НАН Украины 2008 год. SUBSTITUTE SHEET (RULE 26) 3. Special issue of the journal Physicochemical Mechanics of Materials “Problems of Corrosion and Corrosion Protection of Materials” Lviv FMI named after G.V. Karpenka NAS of Ukraine 2008.
4. Клинов И.Я. «Борьба с коррозией в химической и нефтеперерабатывающей промышленности». Машиностроение. Москва 1968 год.  4. Klinov I.Ya. "The fight against corrosion in the chemical and oil refining industries." Engineering. Moscow 1968
5. Материалы научных конференций «Проблемы коррозии и противокоррозионной защиты материалов» Львов ФМИ им. Г.В. Карпенка НАН Украины с 1997 г. по 2008 г.  5. Materials of scientific conferences “Problems of Corrosion and Corrosion Protection of Materials” Lviv FMI named after G.V. Karpenka NAS of Ukraine from 1997 to 2008
6. Рекламный проспект ООО Торговый дом "Химинвест".  6. Advertising brochure LLC Trading house "Himinvest".
7. ТУ 5728-0007-13267785-96 „Технические условия. Графит терморасширенный" .  7. TU 5728-0007-13267785-96 “Technical conditions. Thermally expanded graphite. "
4 four
ЗАМЕНЯЮЩИЙ ЛИСТ (ПРАВИЛО 26)  SUBSTITUTE SHEET (RULE 26)

Claims

Формула изобретения  Claim
Применение гибкого терморасширенного графита как материала для изготовления тела анода, что используется для противокоррозионной защиты подземных и подводных металлических трубопроводов и сооружений. The use of flexible thermally expanded graphite as a material for the manufacture of the anode body, which is used for corrosion protection of underground and underwater metal pipelines and structures.
5 5
ЗАМЕНЯЮЩИЙ ЛИСТ (ПРАВИЛО 26)  SUBSTITUTE SHEET (RULE 26)
PCT/UA2010/000069 2010-02-02 2010-10-04 Anode for protecting metal pipelines and constructions WO2011096910A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112010005218.2T DE112010005218B4 (en) 2010-02-02 2010-10-04 Use of an anode to protect metal piping and equipment

Applications Claiming Priority (2)

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UAU201001066U UA49933U (en) 2010-02-02 2010-02-02 application of flexible thermoexpanded graphite as a material for manufacturing anode body used for corrosion protection of underground and underwater metal pipelines and structures
UAU201001066 2010-02-02

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WO2011096910A1 true WO2011096910A1 (en) 2011-08-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013103921A1 (en) * 2012-01-05 2013-07-11 Bay Materials Llc Electrochemical methods and products

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JPS6229061A (en) * 1985-07-30 1987-02-07 Shin Kobe Electric Mach Co Ltd Manufacture of positive electrode plate for lead storage battery
RU2134656C1 (en) * 1997-01-24 1999-08-20 Дмитриев Антон Владимирович Composition and method for preparing charge for production of carbon material
RU2337895C2 (en) * 2006-09-04 2008-11-10 Закрытое акционерное общество "Институт новых углеродных материалов и технологий" (ЗАО "ИНУМиТ") Method of natural clayey suspension manufacturing for electrode material production
RU2366854C1 (en) * 2008-01-18 2009-09-10 Виктор Сергеевич Петухов Method of controlling excess tolerable density of protective current and its distribution in cathode protection of steel structures

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JP3450894B2 (en) * 1994-03-28 2003-09-29 松下電器産業株式会社 Alkaline manganese battery
US6287694B1 (en) * 1998-03-13 2001-09-11 Superior Graphite Co. Method for expanding lamellar forms of graphite and resultant product

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6229061A (en) * 1985-07-30 1987-02-07 Shin Kobe Electric Mach Co Ltd Manufacture of positive electrode plate for lead storage battery
RU2134656C1 (en) * 1997-01-24 1999-08-20 Дмитриев Антон Владимирович Composition and method for preparing charge for production of carbon material
RU2337895C2 (en) * 2006-09-04 2008-11-10 Закрытое акционерное общество "Институт новых углеродных материалов и технологий" (ЗАО "ИНУМиТ") Method of natural clayey suspension manufacturing for electrode material production
RU2366854C1 (en) * 2008-01-18 2009-09-10 Виктор Сергеевич Петухов Method of controlling excess tolerable density of protective current and its distribution in cathode protection of steel structures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013103921A1 (en) * 2012-01-05 2013-07-11 Bay Materials Llc Electrochemical methods and products
CN104136660A (en) * 2012-01-05 2014-11-05 巴伊材料公司 Electrochemical methods and products

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DE112010005218T5 (en) 2012-11-15
UA49933U (en) 2010-05-11

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