EN 14620-4:2006
(Main)Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 4: Insulation components
Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 4: Insulation components
This European Standard specifies the requirements for materials, design and installation of the insulation of refrigerated liquefied gas (RLG) storage tanks.
RLG storage tanks store liquefied gas with a low boiling point, i.e. below normal ambient temperature.
The concept of storing such products in liquid form and in non-pressurized tanks therefore depends on the combination of latent heat of vaporization and thermal insulation.
Consequently thermal insulation for RLG storage tanks is not an ancillary part of the containment system (as for most ambient atmospheric hydrocarbon tanks) but it is an essential component and the storage tank cannot operate without a properly designed, installed and maintained insulation system.
The main functions of the insulation in RLG storage tanks are:
¾ to maintain the boil off below the specific limits;
¾ to protect the non low temperature parts/materials of the tank (mainly the outer tank) by maintaining these parts at their required ambient temperature;
¾ to limit the cool-down of the foundations/soil underneath the tank to prevent damage by frost heave;
¾ to prevent/minimize condensation and icing on the outer surfaces of the tank.
A wide range of insulation materials is available. However the material properties differ greatly amongst the various generically different materials and also within the same generic group of materials.
Therefore within the scope of this European Standard, only general guidance on selection of materials is given.
NOTE For general guidance on selection of materials see Annex A.
This European Standard deals with the design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and –165 °C.
Auslegung und Herstellung standortgefertigter, stehender, zylindrischer Flachboden-Stahltanks für die Lagerung von tiefkalt verflüssigten Gasen bei einer Betriebstemperatur zwischen 0 °C und -165 °C - Teil 4: Dämmung
Diese Europäische Norm legt Anforderungen an Werkstoffe, Auslegung und Einbau der Dämmung für Tanks zur Lagerung von tiefkalt verflüssigten Gasen fest.
In RLG Tanks wird verflüssigtes Gas mit niedrigem Siedepunkt gelagert, d. h. mit einem Siedepunkt, der unter der üblichen Umgebungstemperatur liegt.
Das Konzept zur Lagerung von flüssigem Lagergut in nicht unter Druck stehenden Tanks hängt daher von einer geeigneten Kombination der latenten Verdampfungswärme und der Wärmedämmung ab.
Folglich ist die Wärmedämmung für RLG Lagertanks kein untergeordneter Bestandteil des von der/den Sicherheitshülle(n) gebildeten Systems (wie bei den unter Umgebungsbedingungen betriebenen Kohlenwas-serstofftanks), sondern eine sehr wichtige Komponente, weil der Lagertank nur betrieben werden kann, wenn das Dämmsystem vorschriftsmäßig ausgelegt, eingebaut und unterhalten wird.
Die wichtigsten Funktionen der Dämmung in RLG Lagertanks sind:
- Beibehaltung eines unterhalb der festgelegten Grenzwerte liegenden Siedepunktes;
- Schutz der nicht für Tieftemperaturen vorgesehenen Tankteile/ werkstoffe (hauptsächlich des Außen-tanks), indem sie bei der jeweils geforderten Umgebungstemperatur gehalten werden;
- Begrenzung des Abkühlens der Gründungen/des Bodens unter dem Tank, um Beschädigungen durch Frosthub zu verhindern;
- Verhinderung/Minimierung von Kondensation und Eisbildung an den Außenflächen des Tanks.
Es gibt eine große Bandbreite von Dämmstoffen. Die Eigenschaften der Werkstoffe, die sowohl unterschied-lichen als auch gleichen Werkstoffgruppen zuzuordnen sind, unterscheiden sich jedoch beträchtlich.
Daher wird im Rahmen dieser Norm nur eine allgemeine Anleitung zur Werkstoffauswahl gegeben.
ANMERKUNG Allgemeine Empfehlungen für die Werkstoffauswahl sind in Anhang A aufgeführt.
Conception et fabrication de réservoirs en acier à fond plat, verticaux, cylindriques, construits sur site, destinés au stockage des gaz réfrigérés, liquéfiés, dont les températures de service sont comprises entre 0 °C et -165 °C - Partie 4: Constituants isolants
La présente Norme Européenne spécifie les exigences pour les matériaux, la conception et l'installation du système d'isolation des réservoirs de stockage des gaz liquéfiés réfrigérés (GLR).
Les réservoirs de stockage des GLR assurent le stockage de gaz liquéfiés à bas point d'ébullition, c'est-à-dire en dessous de la température ambiante normale.
Le concept de stockage de tels produits en phase liquide et dans des réservoirs non pressurisés dépend alors de la combinaison entre la chaleur latente d'évaporation et l'isolation thermique.
Par conséquent, l'isolation thermique pour les réservoirs de stockage de GLR ne constitue pas un élément auxiliaire du système de confinement (comme c'est le cas pour la plupart des réservoirs de stockage d'hydrocarbures en air ambiant), mais un constituant essentiel, le réservoir de stockage ne pouvant être mis en oeuvre sans un système d'isolation judicieusement conçu, correctement installé et bien entretenu.
Les principales fonctions du système d'isolation dans les réservoirs de stockage de GLR consistent à :
- maintenir le point d'évaporation en dessous des limites spécifiées ;
- protéger les parties/matières non soumises à une basse température dans le réservoir (la cuve externe essentiellement) en maintenant lesdits éléments à leur température ambiante requise ;
- limiter la mise en froid des fondations/du sol sur lequel se dresse le réservoir afin d'éviter les dommages consécutifs au soulèvement par le gel ;
- empêcher/réduire au minimum la condensation et la formation de givre sur les surfaces externes du réservoir.
Il existe une large gamme de matériaux isolants. Toutefois, les propriétés des matériaux diffèrent considérablement parmi la variété de matériaux génériquement différents, voire également à l'intérieur du même groupe générique de matériaux.
Par conséquent, dans le cadre du domaine d'application de la présente norme, seules des indications d'ordre général sont données sur le choix des matériaux.
Načrtovanje in proizvodnja na mestu postavitve grajenih navpičnih, valjastih jeklenih posod z ravnim dnom za shranjevanje hlajenih utekočinjenih plinov z delovnimi temperaturami med 0 °C in –165 °C - 4. del: Izolacijski deli
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 4: Insulation componentsConception et fabrication de réservoirs en acier a fond plat, verticaux, cylindriques, construits sur site, destinés au stockage des gaz réfrigérés, liquéfiés, dont les températures de service sont comprises entre 0 °C et -165 °C - Partie 4: Constituants isolantsAuslegung und Herstellung standortgefertigter, stehender, zylindrischer Flachboden-Stahltanks für die Lagerung von tiefkalt verflüssigten Gasen bei einer Betriebstemperatur zwischen 0 °C und -165 °C - Teil 4: DämmungTa slovenski standard je istoveten z:EN 14620-4:2006SIST EN 14620-4:2007en23.020.10UH]HUYRDUMLStationary containers and tanksICS:SLOVENSKI
STANDARDSIST EN 14620-4:200701-januar-2007
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14620-4
September 2006 ICS 23.020.10 English Version
Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 4: Insulation components
Conception et fabrication de réservoirs en acier à fond plat, verticaux, cylindriques, construits sur site, destinés au stockage des gaz réfrigérés, liquéfiés, dont les températures de service sont comprises entre 0 °C et -165 °C - Partie 4: Constituants isolants
Auslegung und Herstellung standortgefertigter, stehender, zylindrischer Flachboden-Stahltanks für die Lagerung von tiefkalt verflüssigten Gasen bei einer Betriebstemperatur zwischen 0 °C und -165 °C - Teil 4: Dämmung This European Standard was approved by CEN on 20 February 2006.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
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B-1050 Brussels © 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14620-4:2006: E
Insulation materials.21 Table A.1 — Single and double containment tanks.21 Table A.2 — Full containment tanks.22 Table A.3 — Membrane tanks.23 Annex B (normative)
Test methods.24 Table B.1 — Testing thermal resistance properties.24 Table B.2 — Testing mechanical properties.25 Table B.3 — Testing temperature resistance.26 Table B.4 — Testing permeability for/effects of water and water vapour properties.26 Table B.5 — Testing of material behaviour in presence of product.27 Table B.6 — Testing chemical properties.27 Table B.7 — Testing fire resistance/reaction to fire.28 Annex C (normative)
Tank bottom insulation - Limit state theory.29 Bibliography.31
The influence of the stored product on an internal insulation system is critical, as it is often continuously in contact with product vapours and it can come in direct contact with the liquid product in case of an accidental leakage. For testing of material behaviour in presence of product, see Table B.5. 4.3.7 Chemical properties An assessment shall be made of the compatibility between and/or possible chemical reactions of:
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Frequently Asked Questions
EN 14620-4:2006 is a standard published by the European Committee for Standardization (CEN). Its full title is "Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - Part 4: Insulation components". This standard covers: This European Standard specifies the requirements for materials, design and installation of the insulation of refrigerated liquefied gas (RLG) storage tanks. RLG storage tanks store liquefied gas with a low boiling point, i.e. below normal ambient temperature. The concept of storing such products in liquid form and in non-pressurized tanks therefore depends on the combination of latent heat of vaporization and thermal insulation. Consequently thermal insulation for RLG storage tanks is not an ancillary part of the containment system (as for most ambient atmospheric hydrocarbon tanks) but it is an essential component and the storage tank cannot operate without a properly designed, installed and maintained insulation system. The main functions of the insulation in RLG storage tanks are: ¾ to maintain the boil off below the specific limits; ¾ to protect the non low temperature parts/materials of the tank (mainly the outer tank) by maintaining these parts at their required ambient temperature; ¾ to limit the cool-down of the foundations/soil underneath the tank to prevent damage by frost heave; ¾ to prevent/minimize condensation and icing on the outer surfaces of the tank. A wide range of insulation materials is available. However the material properties differ greatly amongst the various generically different materials and also within the same generic group of materials. Therefore within the scope of this European Standard, only general guidance on selection of materials is given. NOTE For general guidance on selection of materials see Annex A. This European Standard deals with the design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and –165 °C.
This European Standard specifies the requirements for materials, design and installation of the insulation of refrigerated liquefied gas (RLG) storage tanks. RLG storage tanks store liquefied gas with a low boiling point, i.e. below normal ambient temperature. The concept of storing such products in liquid form and in non-pressurized tanks therefore depends on the combination of latent heat of vaporization and thermal insulation. Consequently thermal insulation for RLG storage tanks is not an ancillary part of the containment system (as for most ambient atmospheric hydrocarbon tanks) but it is an essential component and the storage tank cannot operate without a properly designed, installed and maintained insulation system. The main functions of the insulation in RLG storage tanks are: ¾ to maintain the boil off below the specific limits; ¾ to protect the non low temperature parts/materials of the tank (mainly the outer tank) by maintaining these parts at their required ambient temperature; ¾ to limit the cool-down of the foundations/soil underneath the tank to prevent damage by frost heave; ¾ to prevent/minimize condensation and icing on the outer surfaces of the tank. A wide range of insulation materials is available. However the material properties differ greatly amongst the various generically different materials and also within the same generic group of materials. Therefore within the scope of this European Standard, only general guidance on selection of materials is given. NOTE For general guidance on selection of materials see Annex A. This European Standard deals with the design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and –165 °C.
EN 14620-4:2006 is classified under the following ICS (International Classification for Standards) categories: 23.020.10 - Stationary containers and tanks. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 14620-4:2006 has the following relationships with other standards: It is inter standard links to EN 14620-4:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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표준 EN 14620-4:2006은 냉장 액화가스(RLG) 저장 탱크의 절연 구성 요소에 대한 설계 및 제조 요구 사항을 규정하는 것이며, 이 표준은 0 °C에서 -165 °C 범위의 작동 온도에서 액체 형태로 저장되는 액화가스를 안전하고 효율적으로 보관하기 위한 필수적인 요소로 자리잡고 있습니다. 이 표준의 강점은 RLG 저장 탱크에서의 열 절연이 단순한 부속 요소가 아니라 저장 시스템의 핵심 구성 요소임을 명확히 규정하고 있다는 점입니다. 이는 저장 탱크가 제대로 설계되고 설치된 절연 시스템 없이는 기능할 수 없음을 강조합니다. 열 절연이 유지되지 않을 경우, 기화 손실을 방지하고, 탱크의 외부 부분이 지정된 주변 온도에서 유지되도록 보호하는 등의 주요 기능이 제대로 수행되지 않게 됩니다. 또한, 이 표준은 RLG 저장 탱크의 기초나 지반이 동결 팽창으로 인한 손상을 입지 않도록 냉각을 제한하는 방법에 대해서도 구체적으로 설명하고 있습니다. 이것은 산업에서 중요한 안정성을 제공하며, 저장 탱크의 전반적인 수명 연장에도 기여합니다. 뿐만 아니라, 다양한 절연 재료의 특성과 그 선택에 대한 일반적인 가이드를 제공하므로, 사용자는 독립적으로 적절한 재료를 선택할 수 있는 기반을 마련할 수 있습니다. 이는 다양한 조건과 요구 사항에 따른 최적의 절연 솔루션을 찾는 데 매우 유용합니다. 결과적으로, EN 14620-4:2006 표준은 RLG 저장 탱크의 설계 및 제작에 있어 기술적 요구 사항을 체계적으로 정리하고 있으며, 안전하고 효율적인 저장 시스템을 구축하기 위한 기초를 제공하는 매우 중요하고 관련성 높은 문서입니다.
The EN 14620-4:2006 standard plays a pivotal role in the design and manufacture of site-built, vertical, cylindrical, flat-bottomed steel tanks specifically intended for the storage of refrigerated liquefied gases (RLG). Its relevance is underscored by its comprehensive scope, addressing critical aspects such as materials, design, and installation of insulation components necessary for these tanks, which operate within an extreme temperature range of 0 °C to -165 °C. One of the standard's primary strengths lies in its recognition of the unique needs associated with storing liquefied gases. Unlike traditional ambient atmospheric hydrocarbon tanks, the thermal insulation of RLG storage tanks is deemed essential rather than ancillary. This insight emphasizes that effective thermal insulation is imperative for maintaining operational efficiency and preventing structural failures. The standard outlines the insulation's core functions meticulously. It ensures that the boil-off of the liquefied gases remains within specific limits, which is crucial for safety and efficiency. Additionally, it protects non-low-temperature parts, keeping the outer tank at optimum ambient temperatures, thus extending the lifespan of the tank. It further addresses soil and foundation integrity by preventing frost heave through effective cool-down management. Lastly, the standard tackles potential issues of condensation and icing on tank surfaces, safeguarding the overall structural integrity and operational performance. While a broad range of insulation materials exist, the standard provides essential guidance on material selection rather than exhaustive specifications, recognizing the significant variability in material properties. This pragmatic approach allows for flexibility in implementation while ensuring that safety and efficiency are not compromised. Overall, EN 14620-4:2006 stands out as a crucial document in the realm of refrigerated liquefied gas storage, highlighting the indispensable role of well-designed and installed insulation systems. Its structured guidance enhances operational safety and efficiency, making it highly relevant in current industrial applications.
EN 14620-4:2006は、冷却された液体ガス（RLG）貯蔵タンクのための設計と製造に関する重要な欧州規格であり、その中でも特に断熱部品に焦点を当てています。この規格は、正常な周囲温度を下回る沸点を持つ液体ガスを安全に貯蔵するために必要な材料、設計、および断熱の取り付け要件を明確に定義しています。 この標準の強みは、RLG貯蔵タンクの断熱が単なる副次的な要素ではなく、システムの必須コンポーネントであることを強調している点です。正しく設計、取り付け、維持された断熱システムがなければ、貯蔵タンクは正常に機能しません。断熱の主な機能には、ボイルオフを特定の限界以下に抑えること、タンクの外部を所定の周囲温度に保つこと、基礎や土壌の冷却を制限し霜害を防ぐこと、そしてタンクの外部での結露と氷の形成を防ぐことが含まれます。これにより、断熱材の選定が極めて重要になり、規格内では材料選定に関する一般的なガイダンスが提供されています。 また、さまざまな断熱材料が存在する一方で、それぞれの材料の特性が大きく異なるため、選定時には慎重な検討が求められます。この点を踏まえると、EN 14620-4:2006はRLG貯蔵タンクの安全性と効率を確保するための信頼性の高い基準を提示しており、業界における関連性は非常に高いと言えます。
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