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EP0299200A1 - Container with a safety valve - Google Patents

Container with a safety valve Download PDF

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Publication number
EP0299200A1
EP0299200A1 EP19880109184 EP88109184A EP0299200A1 EP 0299200 A1 EP0299200 A1 EP 0299200A1 EP 19880109184 EP19880109184 EP 19880109184 EP 88109184 A EP88109184 A EP 88109184A EP 0299200 A1 EP0299200 A1 EP 0299200A1
Authority
EP
European Patent Office
Prior art keywords
container
safety valve
manhole
insert part
insert
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP19880109184
Other languages
German (de)
French (fr)
Other versions
EP0299200B1 (en
Inventor
Ernst Berwald
Winfried Lewe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crompton ck Witco GmbH GmbH
Original Assignee
Schering AG
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 Schering AG filed Critical Schering AG
Publication of EP0299200A1 publication Critical patent/EP0299200A1/en
Application granted granted Critical
Publication of EP0299200B1 publication Critical patent/EP0299200B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B65D90/22—Safety features
    • B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
    • B65D90/34—Venting means
    • 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
    • B65D90/10—Manholes; Inspection openings; Covers therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0308—Protective caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/228—Assembling processes by screws, bolts or rivets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7929—Spring coaxial with valve
    • Y10T137/7931—Spring in inlet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7929—Spring coaxial with valve
    • Y10T137/7934—Spring abuts removable valve stem guide

Definitions

  • the invention relates to a container according to the preamble of claim 1.
  • Such containers are known in principle and are used, inter alia, for the transport and storage of liquids which are very reactive or flammable under ambient conditions and which, in the event of an uncontrolled escape into the environment, pose dangers, inter alia, of a health nature, e.g. B. self-igniting liquids.
  • these liquids are kept under pressure in the container by means of an inert gas.
  • the manhole which is used to inspect the interior of the container at regular intervals, is located in the middle of the upper region of the container, which is generally formed by a lying, cylindrical base body.
  • the safety valve must always be located above the liquid level so that only gas and no liquid is blown out in the event of opening if the excess pressure is too great.
  • the outflow cross section must have a minimum cross section corresponding to the gas volume in the container. The outflowing gas should be blown out vertically.
  • the safety valve In order to ensure that the outflow opening of the safety valve remains above the liquid level even when the vehicle carrying the container is tilted, it is customary to arrange the safety valve as close as possible to the manhole.
  • the size of the space available next to the manhole for accommodating the safety valve is problematic, in particular because a minimum outflow cross section is required for this and this cross section should always be above the liquid level.
  • the manhole Due to the arrangement of the manhole, this also applies when the vehicle carrying the container is inclined. At the same time, due to its cross-sectional dimensions, the manhole offers a sufficient outflow area to ensure rapid blowing out in the event of overpressure. This blow-out also always takes place in a vertical direction, so that the construction measures required to accommodate a safety valve can be kept very simple.
  • the insert part is designed as a cylindrical component, one end side of which is closed by a base part in which the safety valve is accommodated, this base part expediently being welded to the cylindrical component.
  • this insert in which the safety valve is detachably arranged, which can be removed as a whole, for example in order to be able to use the manhole. It is therefore the insert with the Screwed border of the manhole. In this way, not only is the safety valve easily accessible, for example for inspection purposes, but it is also ensured that the functions of the manhole are not impaired by the arrangement of the safety valve insert.
  • the insert part can be arranged sunk inside the container wall, the constructive combination of manhole and safety valve does not result in any changes in construction which impair the external dimensions and thus the construction volume of the container. This is of particular importance for the storage volume required for the container in ocean shipping.
  • the container according to the invention thus brings increased accident safety during transport with optimum use of the construction volume.
  • the safety valve is hermetically sealed from all environmental influences.
  • the frictional attachment of the cover ensures that if the safety valve responds, it is displaced and gas can escape.
  • the lid can advantageously be used as a carrier for sealing devices.
  • claims 7 and 8 illustrate the simple and very clear structure of the safety valve arrangement according to the invention. Characterized in that the distance of the bottom part from the lid is larger than the maximum displacement of moving parts of the safety valve is achieved that displacement of the lid only under the effect of the inside of the cylindrical insert in the event of opening of the safety valve.
  • the safety valve is expediently fastened on the side of the base part facing the cover, so that movable parts of the valve protrude into the insert part.
  • the border of the manhole is preferably formed by a cylindrical tube element in the manner of a block flange. In this way there is at the same time a sufficient contact surface for the insert part, in particular the ring flange welded to it, this contact surface simultaneously serving as a contact surface for a corresponding sealing element.
  • FIG. 1 in FIG. 1 denotes a horizontally arranged, essentially cylindrical container, in the middle, upper region of which a manhole 2 is arranged.
  • the manhole 2 is also used for recording a safety valve insert, which is closed at the top with a cover 3.
  • the detailed design of the manhole will be explained in more detail below with reference to FIGS. 2 to 4.
  • the manhole is formed by a cylindrical tube element 5 welded into the wall 4 of the container 1, the outside end face of which is used to fasten the ring flange 6 of a safety valve insert 7.
  • the ring flange 6 is screwed to the end face of the tubular element 5 with the interposition of a sealing washer 8.
  • the safety valve insert 7 is formed by a circular cylindrical housing 9, in the front end of which is turned towards the inside of the container, a base part 10 is welded and the other end of which is closed by the cover 3.
  • the ring flange 6 is welded to the outside of the housing 9.
  • the ring flange 6 is welded to the housing 9 in such a way that the latter projects as far as possible into the container 1 in the assembled state. As a result, the part of the entire arrangement which projects from the wall 4 is kept relatively short.
  • the bottom part 10 has in its central region an opening 11, into which a spring-loaded, known, commercially available safety valve 12 is inserted.
  • the safety valve is fastened to the base part 10 with the intermediate arrangement of a fastening ring 13 which surrounds the opening 11 and with the base part 10 with the intermediate arrangement of a sealing ring 14 is screwed.
  • the axial length 15 of the housing 9 is dimensioned such that when the safety valve 12 is opened, the cover 3 is only displaced by the gas pressure present within the housing 9 and not by parts of the safety valve 12.
  • the cover 3 consists of a circular plate 16, on the periphery of which a cylindrical part 17 extending perpendicularly thereto is welded.
  • the inside diameter of the cylindrical part 17 is larger than the outside diameter of the cylindrical housing 9, so that an annular space 18 remains between the inside surface of the said cylindrical part and the outside surface of the housing - with the cover 3 attached.
  • this space 18 protrudes one leg of a V-shaped cross-section, made of an elastic material, for example a suitable rubber or a comparable plastic clamping ring 19, which otherwise rests on the outside of the cylindrical part 17.
  • the leg of the clamping ring which bears against the outside of the cylindrical part 17 is under a certain pretension, as a result of which the cover 3 is fixed by friction.
  • the outside of the part 17 is provided with an annular groove 20 into which a circumferential rib 21 which is formed on the corresponding side of the clamping ring 19 engages.
  • this chain 23 with a chain is designated, one end of which is attached to the inside of the cover 3 and the other end, not shown in the drawing, of an eyebolt 24, the latter being screwed to the bottom part 10.
  • the length of this chain 23 is such that a lifting of the cover 3 caused by an internal gas pressure is not hindered, that the latter, however, remains captively connected to the manhole.
  • the combination of manhole and safety valve insert according to the invention provides the greatest possible distance between the outflow surface of the valve or its blow-out opening and the liquid level in the container, even if the vehicle carrying it is inclined. In the event of the valve being blown out, this greater distance also provides a correspondingly greater degree of security against partial entrainment of liquid when the safety valve is opened. Since the valve body or the insert carrying it is largely included in the container, the attachments due to the attachment of the safety valve, which are external to the container, turn out to be relatively small, as a result of which the overall height is advantageously influenced. This improves the utilization of the construction volume and thus the suitability of the container according to the invention as a transport container for maritime traffic. Finally, the cover 3 in connection with the clamping ring 19 also provides reliable protection of the safety valve against environmental influences of any kind.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Safety Valves (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Closures For Containers (AREA)

Abstract

The arrangement of a safety valve (12) in containers (1) serving to receive liquids which, for safety reasons, are kept under pressure in the container by means of an inert gas must always take place in such a way that, in the case of the safety valve opening, its outflow opening is always situated above the level of the liquid in order to prevent undesired escape of some of the liquid. Since a manhole (2) is customarily provided in the upper region, the space available for accommodating the safety valve (12) is limited. A container (1) according to the invention is characterised in that the safety valve (12) is accommodated as an insert part in the manhole (2). This constructional combination of the manhole (2) and the safety valve (12) provides the largest possible spacing of the outflow opening of the valve from the surface of the liquid, the constructional volume required for the container (1) being kept low at the same time due to a countersunk arrangement of the safety valve. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Behälter entsprechend dem Oberbegriff des Anspruchs 1.The invention relates to a container according to the preamble of claim 1.

Derartige Behälter sind grundsätzlich bekannt und dienen unter anderem dem Transport sowie der Lagerung von Flüssigkeiten, die unter Umgebungsbedingungen sehr reaktiv oder feuergefährlich sind und von denen im Fall eines un­kontrollierten Austretens in die Umgebung Gefahren unter anderem auch gesundheitlicher Art ausgehen, z. B. selbst­entzündliche Flüssigkeiten. Diese Flüssigkeiten werden aus Sicherheitsgründen in dem Behälter mittels eines inerten Gases unter Überdruck gehalten.Such containers are known in principle and are used, inter alia, for the transport and storage of liquids which are very reactive or flammable under ambient conditions and which, in the event of an uncontrolled escape into the environment, pose dangers, inter alia, of a health nature, e.g. B. self-igniting liquids. For safety reasons, these liquids are kept under pressure in the container by means of an inert gas.

Das in regelmäßigen Zeitabständen der Inspektion des Be­hälterinnenraums dienende Mannloch befindet sich in der Mitte des oberen Bereichs des im Regelfall durch einen liegenden, zylindrischen Grundkörper gebildeten Behäl­ters.The manhole, which is used to inspect the interior of the container at regular intervals, is located in the middle of the upper region of the container, which is generally formed by a lying, cylindrical base body.

Das Sicherheitsventil muß stets oberhalb des Flüssigkeits­pegels angeordnet sein, so daß im Fall des Öffnens bei zu großem Überdruck lediglich Gas und keine Flüssigkeit ausgeblasen wird. Um im letztgenannten Fall ein rasches Ausblasen zu gewährleisten, muß der Ausströmquerschnitt entsprechend dem im Behälter befindlichen Gasvolumen einen Mindestquerschnitt aufweisen. Das ausströmende Gas soll hierbei vertikal ausgeblasen werden.The safety valve must always be located above the liquid level so that only gas and no liquid is blown out in the event of opening if the excess pressure is too great. In order to ensure rapid blowing out in the latter case, the outflow cross section must have a minimum cross section corresponding to the gas volume in the container. The outflowing gas should be blown out vertically.

Um zu gewährleisten, daß auch bei Schrägstellung des den Behälter tragenden Fahrzeugs die Ausströmöffnung des Sicherheitsventils oberhalb des Flüssigkeitspegels ver­bleibt, ist es üblich, das Sicherheitsventil mit möglichst geringem Abstand von dem Mannloch anzuordnen. Problematisch ist jedoch die Größe des neben dem Mannloch zur Verfügung stehenden Raumes zur Unterbringung des Sicherheitsventils insbesondere weil ein Mindestausströmquerschnitt für die­ses gefordert wird und dieser Querschnitt stets oberhalb des Flüssigkeitspegels liegen soll.In order to ensure that the outflow opening of the safety valve remains above the liquid level even when the vehicle carrying the container is tilted, it is customary to arrange the safety valve as close as possible to the manhole. However, the size of the space available next to the manhole for accommodating the safety valve is problematic, in particular because a minimum outflow cross section is required for this and this cross section should always be above the liquid level.

Die bisher bekannten, obige Anforderungen erfüllende Sicher­heitsventilanordnungen führen jedoch zu verhältnismäßig komplizierten Anbauten am Behälter, durch welche dessen Bauvolumen erhöht und demzufolge dessen Eignung als Transportbehälter für den Seeverkehr vermindert wird. Ein weiterer Nachteil der bisherigen Ausführungsformen besteht darin, daß im Fall des Öffnens des Sicherheitsventils bei Schrägstellung des den Behälter tragenden Fahrzeugs auf­grund des verringerten Abstands der Ausblasöffnung von dem Flüssigkeitspegel Teile der Flüssigkeit mitgerissen und demzufolge ausgeblasen werden.The previously known safety valve arrangements which meet the above requirements, however, lead to relatively complicated attachments to the container, by means of which its construction volume is increased and, consequently, its suitability as a transport container for maritime transport is reduced. Another disadvantage of the previous embodiments is that when the safety valve is opened when the vehicle carrying the container is inclined, parts of the liquid are entrained and consequently blown out due to the reduced distance of the blow-out opening from the liquid level.

Es ist die Aufgabe der Erfindung, einen Behälter der eingangs bezeichneten Gattung dahingehend auszugestalten, daß in konstruktiv einfacher Weise bei optimaler Bauvolu­menausnutzung die Sicherheit gegenüber einem wenn auch nur teilweisen Ausblasen von Flüssigkeit im Fall des Öffnens des Sicherheitsventils reduziert wird. Gelöst ist diese Aufgabe bei einem gattungsgemäßen Behälter durch die Merkmale des Kennzeichnungsteils des Anspruchs 1. Wesentlich ist, daß das ohnehin vorhandene Mannloch räumlich bzw. konstruktiv mit einem Sicherheitsventilein­satz zusammengefaßt wird. Da das Mannloch üblicherweise im mittleren oberen Bereich des Behälters angeordnet ist, ergibt sich auf diese Weise ein größtmöglicher Abstand zwischen der Ausblasöffnung des Sicherheitsventils und der freien Flüssigkeitsoberfläche. Bereits durch diesen Abstand wird eine erhöhte Sicherheit gegenüber einem unbeabsichtigten Ausblasen von Teilen der Flüssigkeit im Fall des Ansprechens des Sicherheitsventils gegeben. Dies trifft aufgrund der Anordnung des Mannloches auch bei einer Schrägstellung des den Behälter tragenden Fahrzeugs zu. Gleichzeitig bietet das Mannloch aufgrund seiner Querschnittsabmessungen eine ausreichende Ausströmfläche, um im Fall eines Überdrucks ein rasches Ausblasen sicher­zustellen. Es erfolgt dieses Ausblasen auch stets in senkrechter Richtung, so daß die zur Aufnahme eines Si­cherheitsventils erforderlichen Konstruktionsmaßnahmen sehr einfach gehalten werden können.It is the object of the invention to design a container of the type mentioned at the outset in such a way that that in a structurally simple manner with optimum use of the construction volume, the security against an if only partial blowing out of liquid is reduced if the safety valve is opened. This object is achieved in a generic container by the features of the characterizing part of claim 1. It is essential that the manhole, which is present anyway, is combined spatially or constructively with a safety valve insert. Since the manhole is usually arranged in the middle upper region of the container, this results in the greatest possible distance between the blow-out opening of the safety valve and the free liquid surface. This distance alone provides increased security against inadvertent blowing out of parts of the liquid if the safety valve responds. Due to the arrangement of the manhole, this also applies when the vehicle carrying the container is inclined. At the same time, due to its cross-sectional dimensions, the manhole offers a sufficient outflow area to ensure rapid blowing out in the event of overpressure. This blow-out also always takes place in a vertical direction, so that the construction measures required to accommodate a safety valve can be kept very simple.

Gemäß den Merkmalen der Ansprüche 2 bis 4 ist das Einsatz­teil als zylindrisches Bauteil ausgebildet, dessen eine Stirnseite durch ein Bodenteil verschlossen wird, in welchem das Sicherheitsventil aufgenommen ist, wobei dieses Bodenteil zweckmäßigerweise mit dem zylindrischen Bauteil verschweißt ist. Es ist dieses Einsatzteil, in welchem das Sicherheitsventil lösbar angeordnet ist, als Ganzes ausbaubar, beispielsweise um das Mannloch nutzen zu können. Es ist demzufolge das Einsatzteil mit der Umrandung des Mannloches verschraubt. Es ist auf diese Weise nicht nur eine leichte Zugänglichkeit des Sicher­heitsventils - beispielsweise zu Inspektionszwecken - sichergestellt, sondern auch dafür gesorgt, daß durch die Anordnung des Sicherheitsventileinsatzes die Funktio­nen des Mannloches nicht beeinträchtigt werden. Da das Einsatzteil innerhalb der Behälterwandung versenkt ange­ordnet sein kann, ergeben sich durch die konstruktive Zusammenfassung von Mannloch und Sicherheitsventil kei­nerlei die äußeren Abmessungen und damit das Bauvolumen des Behälters beeinträchtigende Konstruktionsänderungen. Diese ist von besonderer Bedeutung für das für den Behälter im Seeschiffverkehr erforderliche Stauvolumen. Es bringt der erfindungsgemäße Behälter somit bei optimaler Bau­volumennutzung eine erhöhte Unfallsicherheit beim Transport mit sich.According to the features of claims 2 to 4, the insert part is designed as a cylindrical component, one end side of which is closed by a base part in which the safety valve is accommodated, this base part expediently being welded to the cylindrical component. It is this insert, in which the safety valve is detachably arranged, which can be removed as a whole, for example in order to be able to use the manhole. It is therefore the insert with the Screwed border of the manhole. In this way, not only is the safety valve easily accessible, for example for inspection purposes, but it is also ensured that the functions of the manhole are not impaired by the arrangement of the safety valve insert. Since the insert part can be arranged sunk inside the container wall, the constructive combination of manhole and safety valve does not result in any changes in construction which impair the external dimensions and thus the construction volume of the container. This is of particular importance for the storage volume required for the container in ocean shipping. The container according to the invention thus brings increased accident safety during transport with optimum use of the construction volume.

Durch die Anordnung und Ausgestaltung des Deckels ent­sprechend den Merkmalen der Ansprüche 5 und 6 wird das Sicherheitsventil hermetisch von allen Umwelteinflüssen abgeschlossen. Gleichzeitig ist aufgrund der reibschlüssi­gen Anbringung des Deckels gewährleistet, daß dieser im Fall des Ansprechens des Sicherheitsventils verdrängt wird und einen Gasaustritt ermöglicht. Gleichzeitig kann der Deckel vorteilhaft als Träger für Plombierungseinrich­tungen benutzt werden.Due to the arrangement and design of the cover according to the features of claims 5 and 6, the safety valve is hermetically sealed from all environmental influences. At the same time, the frictional attachment of the cover ensures that if the safety valve responds, it is displaced and gas can escape. At the same time, the lid can advantageously be used as a carrier for sealing devices.

Die Merkmale der Ansprüche 7 und 8 verdeutlichen den einfachen und sehr übersichtlichen Aufbau der erfindungs­gemäßen Sicherheitsventilanordnung. Dadurch, daß der Abstand des Bodenteils von dem Deckel größer bemessen ist als der maximale Verschiebeweg beweglicher Teile des Sicherheitsventils ist erreicht, daß ein Verdrängen des Deckels ausschließlich unter der Wirkung des innerhalb des zylindrischen Einsatzteils im Falle des Öffnens des Sicherheitsventils anstehenden Gasdruckes erfolgt. Zweck­mäßigerweise ist das Sicherheitsventil auf der dem Deckel zugekehrten Seite des Bodenteils an letzterem Befestigt, so daß bewegliche Teile des Ventils in das Einsatzteil hineinragen.The features of claims 7 and 8 illustrate the simple and very clear structure of the safety valve arrangement according to the invention. Characterized in that the distance of the bottom part from the lid is larger than the maximum displacement of moving parts of the safety valve is achieved that displacement of the lid only under the effect of the inside of the cylindrical insert in the event of opening of the safety valve. The safety valve is expediently fastened on the side of the base part facing the cover, so that movable parts of the valve protrude into the insert part.

Die Umrandung des Mannloches wird vorzugsweise durch ein zylindrisches Rohrelement nach Art eines Blockflansches gebildet. Es ist auf diese Weise gleichzeitig eine aus­reichende Anlagefläche für das Einsatzteil, insbesondere den an diesem angeschweißten Ringflansch gegeben, wobei diese Anlagefläche gleichzeitig als Auflagefläche für ein entsprechendes Dichtungselement dient.The border of the manhole is preferably formed by a cylindrical tube element in the manner of a block flange. In this way there is at the same time a sufficient contact surface for the insert part, in particular the ring flange welded to it, this contact surface simultaneously serving as a contact surface for a corresponding sealing element.

Die Erfindung wird im folgenden unter Bezugnahme auf das in den Zeichnungen dargestellte Ausführungsbeispiel näher erläutert werden. Es zeigen:

  • Fig. 1 eine Draufsicht auf einen erfindungsgemäßen Behälter;
  • Fig. 2 eine Schnittdarstellung eines erfindungsgemäßen Mannloches;
  • Fig. 3 eine vergrößerte Teildarstellung eines Teiles III der Fig. 2;
  • Fig. 4 eine vergrößerte Teildarstellung eines Teiles IV der Fig. 3.
The invention will be explained in more detail below with reference to the embodiment shown in the drawings. Show it:
  • Figure 1 is a plan view of a container according to the invention.
  • 2 shows a sectional illustration of a manhole according to the invention;
  • Fig. 3 is an enlarged partial view of part III of Fig. 2;
  • 4 is an enlarged partial view of part IV of FIG. 3.

Mit 1 ist in Fig. 1 ein liegend angeordneter, im wesent­lichen zylindrisch ausgebildeter Behälter bezeichnet, in dessen mittlerem, oberen Bereich ein Mannloch 2 ange­ordnet ist. Das Mannloch 2 dient gleichzeitig der Aufnahme eines Sicherheitsventils-Einsatzes, welcher oberseitig mit einem Deckel 3 verschlossen ist. Es wird die nähere Ausgestaltung des Mannloches im folgenden unter Bezugnahme auf die Fig. 2 bis 4 näher erläutert werden.1 in FIG. 1 denotes a horizontally arranged, essentially cylindrical container, in the middle, upper region of which a manhole 2 is arranged. The manhole 2 is also used for recording a safety valve insert, which is closed at the top with a cover 3. The detailed design of the manhole will be explained in more detail below with reference to FIGS. 2 to 4.

Das Mannloch wird durch ein in die Wandung 4 des Behälters 1 eingeschweißtes zylindrisches Rohrelement 5 gebildet, dessen außenseitige Stirnseite der Befestigung des Ring­flansches 6 eines Sicherheitsventileinsatzes 7 dient. Es ist der Ringflansch 6 unter Zwischenanordnung einer Dich­tungsscheibe 8 mit der Stirnseite des Rohrelementes 5 verschraubt.The manhole is formed by a cylindrical tube element 5 welded into the wall 4 of the container 1, the outside end face of which is used to fasten the ring flange 6 of a safety valve insert 7. The ring flange 6 is screwed to the end face of the tubular element 5 with the interposition of a sealing washer 8.

Der Sicherheitsventileinsatz 7 wird durch ein kreiszylin­drisches Gehäuse 9 gebildet, in dessen, dem Behälterinne­ren zugekehrtes stirnseitiges Ende ein Bodenteil 10 ein­geschweißt ist und dessen anderes stirnseitiges Ende durch den Deckel 3 verschlossen wird.The safety valve insert 7 is formed by a circular cylindrical housing 9, in the front end of which is turned towards the inside of the container, a base part 10 is welded and the other end of which is closed by the cover 3.

Es ist der genannte Ringflansch 6 an der Außenseite des Gehäuses 9 angeschweißt. Die Verschweißung des Ring­flansches 6 mit dem Gehäuse 9 erfolgt derart, daß letzteres im montierten Zustand weitestgehend in den Behälter 1 hineinragt. Es ist demzufolge der aus der Wandung 4 heraus­ragende Teil der gesamten Anordnung verhältnismäßig kurz gehalten.The ring flange 6 is welded to the outside of the housing 9. The ring flange 6 is welded to the housing 9 in such a way that the latter projects as far as possible into the container 1 in the assembled state. As a result, the part of the entire arrangement which projects from the wall 4 is kept relatively short.

Das Bodenteil 10 weist in seinem Zentralbereich ein Öffnung 11 auf, in welche ein federbelastetes, an sich bekanntes, handelsübliches Sicherheitsventil 12 eingesetzt ist. Es erfolgt die Befestigung des Sicherheitsventils an dem Bodenteil 10 unter Zwischenanordnung eines Befestigungs­ringes 13, welcher die Öffnung 11 umgibt und mit dem Bodenteil 10 unter Zwischenanordnung eines Dichtungsringes 14 verschraubt ist.The bottom part 10 has in its central region an opening 11, into which a spring-loaded, known, commercially available safety valve 12 is inserted. The safety valve is fastened to the base part 10 with the intermediate arrangement of a fastening ring 13 which surrounds the opening 11 and with the base part 10 with the intermediate arrangement of a sealing ring 14 is screwed.

Die axiale Länge 15 des Gehäuses 9 ist derart bemessen, daß im Falle des Öffnens des Sicherheitsventils 12 der Deckel 3 ausschließlich durch den innerhalb des Gehäuses 9 anstehenden Gasdruckes verdrängt wird und nicht durch Teile des Sicherheitsventils 12.The axial length 15 of the housing 9 is dimensioned such that when the safety valve 12 is opened, the cover 3 is only displaced by the gas pressure present within the housing 9 and not by parts of the safety valve 12.

Der Deckel 3 besteht aus einer Kreisplatte 16, an deren Peripherie ein sich senkrecht zu dieser erstreckendes zylindrisches Teil 17 angeschweißt ist. Es ist der Innen­durchmesser des zylindrischen Teils 17 größer als der Außendurchmesser des zylindrischen Gehäuses 9 bemessen, so daß zwischen der Innenfläche des genannten zylindrischen Teils und der Außenfläche des Gehäuses - bei aufgesetztem Deckel 3 - ein kreisringförmiger Zwischenraum 18 verbleibt. In diesen Zwischenraum 18 hinein ragt der eine Schenkel eines im Querschnitt V-förmig ausgebildeten, aus einem elastischen Werkstoff, beispielsweise einem geeigneten Gummi oder einem vergleichbaren Kunststoff bestehenden Klemmringes 19, der im übrigen an der Außenseite des zy­lindrischen Teils 17 anliegt. Es steht im aufgesetzten Zustand des Deckels der genannte, an der Außenseite des zylindrischen Teils 17 anliegende Schenkel des Klemmringes unter einer gewissen Vorspannung, wodurch der Deckel 3 reibschlüssig festgelegt ist.The cover 3 consists of a circular plate 16, on the periphery of which a cylindrical part 17 extending perpendicularly thereto is welded. The inside diameter of the cylindrical part 17 is larger than the outside diameter of the cylindrical housing 9, so that an annular space 18 remains between the inside surface of the said cylindrical part and the outside surface of the housing - with the cover 3 attached. In this space 18 protrudes one leg of a V-shaped cross-section, made of an elastic material, for example a suitable rubber or a comparable plastic clamping ring 19, which otherwise rests on the outside of the cylindrical part 17. In the attached state of the cover, the leg of the clamping ring which bears against the outside of the cylindrical part 17 is under a certain pretension, as a result of which the cover 3 is fixed by friction.

Zur Befestigung des Klemmringes 19, und zwar des an der Außenseite des zylindrischen Teils 17 anliegenden Schenkels ist die Außenseite des Teils 17 mit einer Ringnut 20 ver­sehen, in welche eine an der entsprechenden Seite des Klemmringes 19 angeformte, umlaufende Rippe 21 eingreift.To fasten the clamping ring 19, namely the leg resting on the outside of the cylindrical part 17, the outside of the part 17 is provided with an annular groove 20 into which a circumferential rib 21 which is formed on the corresponding side of the clamping ring 19 engages.

Mit 22 sind an der Umfangsseite der Kreisplatte 16 ange­schweißte Muttern bezeichnet, über welche in zeichnerisch nicht dargestellter Weise eine Verplombung des Deckels 3 stattfindet.With 22 on the circumferential side of the circular plate 16 welded nuts are designated, about which in the drawing not shown, a sealing of the cover 3 takes place.

Mit 23 ist eine Kette bezeichnet, deren eines Ende an der Innenseite des Deckels 3 und deren anderes, zeichne­risch nicht dargestelltes Ende an einer Ringschraube 24 befestigt ist, welch letztere mit dem Bodenteil 10 ver­schraubt ist. Diese Kette 23 ist in ihrer Länge derart bemessen, daß ein durch einen inneren Gasdruck bewirktes Abheben des Deckels 3 nicht behindert wird, daß letzterer hingegen unverlierbar mit dem Mannloch in Verbindung bleibt.23 with a chain is designated, one end of which is attached to the inside of the cover 3 and the other end, not shown in the drawing, of an eyebolt 24, the latter being screwed to the bottom part 10. The length of this chain 23 is such that a lifting of the cover 3 caused by an internal gas pressure is not hindered, that the latter, however, remains captively connected to the manhole.

Man erkennt aus der vorangegangenen Darstellung, daß durch die erfindungsgemäße Zusammenfassung von Mannloch und Sicherheitsventileinsatz ein größtmöglicher Abstand der Ausströmfläche des Ventils bzw. dessen Ausblasöffnung von dem Flüssigkeitspegel im Behälter gegeben ist, und zwar auch bei einer eventuellen Schrägstellung des diesen tra­genden Fahrzeugs. Dieser größere Abstand bringt im Fall des Ausblasens des Ventils auch eine entsprechend größere Sicherheit gegenüber einem teilweisen Mitreißen von Flüs­sigkeit im Fall des Öffnens des Sicherheitsventils. Da der Ventilkörper bzw. der diesen tragende Einsatz größten­teils in den Behälter einbezogen ist, fallen die durch die Anbringung des Sicherheitsventils bedingten, hinsichtlich des Behälters außenseitigen Anbauten verhältnismäßig klein aus, wodurch dessen Bauhöhe vorteilhaft beeinflußt wird. Dies verbessert die Ausnutzung des Bauvolumens und damit die Eignung des erfindungsgemäßen Behälters als Transportbehälter für den Seeverkehr. Schließlich ist durch den Deckel 3 in Verbindung mit dem Klemmring 19 auch ein zuverlässiger Schutz des Sicherheitsventils vor Umgebungseinflüssen jeglicher Art gegeben.It can be seen from the preceding illustration that the combination of manhole and safety valve insert according to the invention provides the greatest possible distance between the outflow surface of the valve or its blow-out opening and the liquid level in the container, even if the vehicle carrying it is inclined. In the event of the valve being blown out, this greater distance also provides a correspondingly greater degree of security against partial entrainment of liquid when the safety valve is opened. Since the valve body or the insert carrying it is largely included in the container, the attachments due to the attachment of the safety valve, which are external to the container, turn out to be relatively small, as a result of which the overall height is advantageously influenced. This improves the utilization of the construction volume and thus the suitability of the container according to the invention as a transport container for maritime traffic. Finally, the cover 3 in connection with the clamping ring 19 also provides reliable protection of the safety valve against environmental influences of any kind.

Claims (9)

1. Behälter (1) zur Aufnahme von Flüssigkeiten mit einem, im oberen mittleren Bereich angeordneten Mannloch (2) und einem Sicherheitsventil (12), dadurch gekenn­zeichnet, daß das Sicherheitsventil (12) als Einsatz­teil in dem Mannloch (2) angeordnet ist.1. Container (1) for receiving liquids with a manhole (2) arranged in the upper middle region and a safety valve (12), characterized in that the safety valve (12) is arranged as an insert in the manhole (2). 2. Behälter (1) nach Anspruch 1, dadurch gekennzeichnet, daß das Einsatzteil ein vorzugsweise zylindrisch aus­gebildetes, in einem Bodenteil (10) das Sicherheits­ventil (12) tragendes, in der Wandung (4) des Behäl­ters (1) weitestgehend versenkt angeordnetes Bauteil ist.2. Container (1) according to claim 1, characterized in that the insert part is a preferably cylindrical, in a bottom part (10) the safety valve (12) carrying, in the wall (4) of the container (1) largely sunk component . 3. Behälter (1) nach Anspruch 1 oder 2, dadurch gekenn­zeichnet, daß das Einsatzteil an der Umrandung des Mannloches (2) lösbar befestigt ist.3. Container (1) according to claim 1 or 2, characterized in that the insert part is releasably attached to the border of the manhole (2). 4. Behälter (1) nach einem der vorangegangenen Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Sicherheits­ventil (12) in dem Einsatzteil lösbar angeordnet ist.4. Container (1) according to one of the preceding claims 1 to 3, characterized in that the safety valve (12) is detachably arranged in the insert part. 5. Behälter (1) nach einem der vorangegangenen Ansprüche 2 bis 4, dadurch gekennzeichnet, daß das Einsatzteil außenseitig durch einen Deckel (3) verschlossen ist, der gegenüber dem Einsatzteil vorzugsweise reibschlüs­sig fixiert ist.5. Container (1) according to any one of the preceding claims 2 to 4, characterized in that the insert part is closed on the outside by a cover (3) which is preferably fixed frictionally with respect to the insert part. 6. Behälter (1) nach Anspruch 5, dadurch gekennzeichnet, daß zur Fixierung des Deckels (3) an dem Einsatzteil ein aus einem vorzugsweise gummielastischen Werkstoff bestehender Klemmring (19) vorgesehen ist, der vor­zugsweise mit der Außenseite des Einsatzteils in reibschlüssigem Kontakt steht.6. Container (1) according to claim 5, characterized in that for fixing the lid (3) on the insert part, a clamping ring (19), preferably made of a rubber-elastic material, is provided, which is preferably in frictional contact with the outside of the insert part. 7. Behälter (1) nach einem der vorangegangenen Ansprüche 2 bis 6, dadurch gekennzeichnet, daß das Mannloch (2), das Einsatzteil und eine im Bodenteil (10) angeordnete, dem Gasaustritt aus dem Behälter (1) und der Beaufschla­gung des Sicherheitsventils (12) dienende Öffnung (11) koaxial zueinander angeordnet sind.7. Container (1) according to one of the preceding claims 2 to 6, characterized in that the manhole (2), the insert part and one in the bottom part (10) arranged, the gas outlet from the container (1) and the application of the safety valve ( 12) serving opening (11) are arranged coaxially to each other. 8. Behälter (1) nach einem der vorangegangenen Ansprüche 2 bis 7, dadurch gekennzeichnet, daß das Einsatzteil an seinem, der Auflage des Sockels (3) zugekehrten Ende einen Ringflansch (6) für die lösbare Befestigung an der Wandung (4) des Behälters (1) aufweist und daß der Abstand des Bodenteils (10) von dem Deckel (3) größer bemessen ist als der maximale Verschiebeweg beweglicher Teil des Sicherheitsventils.8. Container (1) according to one of the preceding claims 2 to 7, characterized in that the insert part at its, the support of the base (3) facing end an annular flange (6) for releasable attachment to the wall (4) of the container (1) and that the distance of the base part (10) from the cover (3) is larger than the maximum displacement of the movable part of the safety valve. 9. Behälter (1) nach einem der vorangegangenen Ansprüche 3 bis 8, dadurch gekennzeichnet, daß die Umrandung des Mannloches (2) durch ein vorzugsweise zylindrisches, mit der Wandung (4) in vorzugsweise unlösbarer Verbin­dung stehendes Rohrelement (5) gebildet wird und daß eine Stirnseite dieses Rohrelements (5) als Auflage­fläche für das Einsatzteil dient.9. Container (1) according to one of the preceding claims 3 to 8, characterized in that the border of the manhole (2) is formed by a preferably cylindrical, with the wall (4) in preferably non-detachable connection pipe element (5) and that one end of this tubular element (5) serves as a support surface for the insert.
EP19880109184 1987-07-17 1988-06-09 Container with a safety valve Expired - Lifetime EP0299200B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3723645 1987-07-17
DE19873723645 DE3723645A1 (en) 1987-07-17 1987-07-17 CONTAINER WITH SAFETY VALVE

Publications (2)

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EP0299200A1 true EP0299200A1 (en) 1989-01-18
EP0299200B1 EP0299200B1 (en) 1992-01-02

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EP19880109184 Expired - Lifetime EP0299200B1 (en) 1987-07-17 1988-06-09 Container with a safety valve

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US (1) US4958742A (en)
EP (1) EP0299200B1 (en)
DE (2) DE3723645A1 (en)

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FR2666399A1 (en) * 1990-09-04 1992-03-06 Simonny Roger Protective and safety cap for exploitation members such as clack valves, valves, pressure relief devices of reservoirs of fluid under pressure
WO1994029639A1 (en) * 1993-06-10 1994-12-22 I.C.O.M. S.R.L. Improvements to liquid propane gas tanks and, in particular to cylindrical tanks for vehicles

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US6497248B2 (en) * 2001-01-18 2002-12-24 Qualitrol Corporation Pressure relief device with one piece gasket
US20030209191A1 (en) * 2002-05-13 2003-11-13 Purdy Andrew P. Ammonothermal process for bulk synthesis and growth of cubic GaN
US7114762B2 (en) * 2003-01-30 2006-10-03 Wabash National, L.P. Sidewall of a semi-trailer having a high baserail
US9222622B2 (en) * 2007-11-26 2015-12-29 Air Products And Chemicals, Inc. Vessels with personnel access provisions

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US4024983A (en) * 1975-12-22 1977-05-24 Muehl Herman D Safety locking cover assembly for tank domes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666399A1 (en) * 1990-09-04 1992-03-06 Simonny Roger Protective and safety cap for exploitation members such as clack valves, valves, pressure relief devices of reservoirs of fluid under pressure
WO1994029639A1 (en) * 1993-06-10 1994-12-22 I.C.O.M. S.R.L. Improvements to liquid propane gas tanks and, in particular to cylindrical tanks for vehicles

Also Published As

Publication number Publication date
US4958742A (en) 1990-09-25
DE3867343D1 (en) 1992-02-13
EP0299200B1 (en) 1992-01-02
DE3723645A1 (en) 1989-01-26

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