EP2279048A1 - Device and method for aseptic pressure relief - Google Patents

Device and method for aseptic pressure relief

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Publication number
EP2279048A1
EP2279048A1 EP09729440A EP09729440A EP2279048A1 EP 2279048 A1 EP2279048 A1 EP 2279048A1 EP 09729440 A EP09729440 A EP 09729440A EP 09729440 A EP09729440 A EP 09729440A EP 2279048 A1 EP2279048 A1 EP 2279048A1
Authority
EP
European Patent Office
Prior art keywords
safety valve
safety
supply line
valve
pipeline
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
EP09729440A
Other languages
German (de)
French (fr)
Other versions
EP2279048B1 (en
Inventor
Holger Grossmann
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.)
KHS GmbH
Original Assignee
KHS GmbH
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Filing date
Publication date
Application filed by KHS GmbH filed Critical KHS GmbH
Priority to PL09729440T priority Critical patent/PL2279048T3/en
Publication of EP2279048A1 publication Critical patent/EP2279048A1/en
Application granted granted Critical
Publication of EP2279048B1 publication Critical patent/EP2279048B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • 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
    • Y10T137/0318—Processes
    • Y10T137/0396—Involving pressure control
    • 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
    • Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
    • Y10T137/4245—Cleaning or steam sterilizing
    • Y10T137/4259—With separate material addition
    • 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
    • Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
    • Y10T137/4245—Cleaning or steam sterilizing
    • Y10T137/4266—Steam sterilizing
    • 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]
    • Y10T137/7838—Plural
    • 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
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages

Definitions

  • the invention relates to an overpressure safety device (1) for pipeline networks, which comprises a supply line which leads from the pipeline network to be secured to the overpressure safety device (1), has at least one safety valve and one discharge line.
  • a supply line which leads from the pipeline network to be secured to the overpressure safety device (1)
  • at least two safety valves (2) (3) are provided, and both safety valves have an inlet side and an outlet side, wherein the first safety valve (2) is connected to a line of the pipeline network, and the first with the second safety valve ( 3) is connected via a connecting pipe (4).
  • the connecting line (4) has a supply line and a discharge line, via which a liquid or gaseous rinsing, cleaning and / or sterilizing agent can be supplied and discharged.
  • an overpressure safety device (1) for pipeline networks which comprises a supply line which leads from the pipeline network to be secured to the overpressure safety device (1), at least one safety valve and one discharge line.
  • the connecting pipe (4) has a supply line and a discharge line, via which a liquid or gaseous rinsing, cleaning and / or sterilizing agent can be supplied and discharged.
  • the first safety valve (2) is constructed or adjusted such that it withstands a higher limit pressure than the safety valve (3).
  • This design allows the opening of the first safety valve not to lead to sterility, but the process must not be interrupted following a pressure shock or a pressure peak.
  • the pipe interior of the connecting pipe can be acted upon after such an event and regularly with a suitable sterilizing agent, such as steam, ozone, H 2 O 2 or peracetic acid.
  • limiting pressure is meant here the pressure level at which the respective safety valve opens.
  • the load capacity of the safety valves is such that the limit pressure of the second safety valve (3) is 50% below the limit pressure of the first safety valve (2) or even smaller.
  • the pressure of the sterilizing medium, which is passed through the connecting pipe is below the limit pressure of the second safety valve.
  • the flow guide in the connecting pipe (4) can be problematic especially when using liquid sterilizing agents, so that leads in an improved variant, the supply of sterilizing agent directly into the outlet side of the first safety valve (2) and the derivative directly with the inlet side of the second safety valve (3) is connected. This ensures that a defined flow in the connecting pipe (4) takes place.
  • This variant can be further improved by the end of the supply line in the outlet side or in the connecting pipe is oriented such that its outlet is directed to the valve seat of the first safety valve (2). This ensures the fastest possible and highly effective sterilization of the valve seat.
  • the end of the supply line should be a maximum of 20 mm away from the valve seat of the first safety valve (2).
  • the invention further comprises a method for overpressure protection of piping networks, which comprises an embodiment of the aforementioned devices.
  • FIG. 2 also shows schematically the overpressure protection device 1, which is particularly suitable for the use of a liquid sterilization medium.
  • the supply line 7 branches in the connecting pipe into a left and a right branch.
  • the right branch leads into the outlet side 12 of the first safety valve 2 and the outlet 13 of the right branch of the supply line 7 is directed directly onto the valve seat 14.
  • the left branch of the supply line 7 leads into the inlet side 15 of the second safety valve 3 and the outlet 16 is the valve seat 17 directly opposite and is directed to this.
  • an extension is provided so that residual liquid or condensate can collect and drain there.
  • the discharge line 10 is also arranged. This arrangement certainly an ideal Stromungssselung in the connecting pipe. 4

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

A pressure relief device for pipeline networks includes first and second safety valves, each having an inlet side and an outlet side. The first safety valve is connected to a line of the pipeline network by its outlet side. A connecting pipeline extends between the two safety valves and connects the inlet side of the second valve to the outlet side of the first. A supply line carries a working fluid to the connecting pipeline, a supply-line safety valve for the supply line, and a discharge line connected to the connecting pipeline for removing working fluid carried to the connecting pipeline by the supply line.

Description

Vorrichtung und Verfahren zur aseptischen Druckentlastung Device and method for aseptic pressure relief
[0001] Die Erfindung betrifft eine Überdrucksicherungsvorrichtung (1) für Rohrleitungsnetzwerke, die eine Zuleitung umfasst, welche von dem zu sichernden Rohrlei- tungsnetzwerk zu der Überdrucksicherungsvorrichtung (1) führt, mindestens ein Sicherheitsventil und eine Ableitung aufweist. Zentrales hierbei ist, dass mindestens zwei Sicherheitsventile (2)(3) vorgesehen sind, und beide Sicherheitsventile eine Einlassseite und eine Auslassseite aufweisen, wobei das erste Sicherheitsventil (2) mit einer Leitung des Rohrleitungsnetzwerkes verbunden ist, und das ersten mit dem zweiten Sicherheitsventil (3) über eine Verbindungsrohrleitung (4) verbunden ist. Dabei weist die Verbindungsleitung (4) eine Zuleitung und eine Ableitung aufweist, über welche ein flüssiges oder gasförmiges Spül-, Reinigungs- und/oder Sterilisierungs- mittel zu- und ableitbar ist.[0001] The invention relates to an overpressure safety device (1) for pipeline networks, which comprises a supply line which leads from the pipeline network to be secured to the overpressure safety device (1), has at least one safety valve and one discharge line. Central here is that at least two safety valves (2) (3) are provided, and both safety valves have an inlet side and an outlet side, wherein the first safety valve (2) is connected to a line of the pipeline network, and the first with the second safety valve ( 3) is connected via a connecting pipe (4). In this case, the connecting line (4) has a supply line and a discharge line, via which a liquid or gaseous rinsing, cleaning and / or sterilizing agent can be supplied and discharged.
[0002] Bei Füllern für sterile Produkte, insbesondere wenn hohe behördliche Zulassun- gen angestrebt werden, wie beispielsweise eine FDA-Zulassung, sind übliche Sicherheitsventile nicht ausreichend. Üblich Sicherheitsventile weisen in der Regel einen Federbelasteten Ventilkörper auf, der bei einem gewissen Grenzdruck automatisch öffnet. Derartige Sicherheitsventile sind bekannt und in der Patentliteratur vielfach beschrieben. Beispielhaft seinen hier genannt EP 0 022 941 A1, EP 0 051 082 A1 , DE 37 42 722 A1 und DE 196 07 840 C1.[0002] In the case of fillers for sterile products, in particular if high regulatory approvals are desired, for example FDA approval, conventional safety valves are not sufficient. Conventional safety valves usually have a spring-loaded valve body, which automatically opens at a certain limit pressure. Such safety valves are known and described many times in the patent literature. By way of example its here called EP 0 022 941 A1, EP 0 051 082 A1, DE 37 42 722 A1 and DE 196 07 840 C1.
[0003] In steril zu haltenden Rohrleitungssystemen besteht bei Druckstößen die Gefahr, dass das Ventil kurz zur unsterilen Abblasleitung öffnet und einer Rekontamination erfolgt. Bei der Anwendung in Füllprozessen für Lebensmittel, insbesondere bei Getränken, wird die Gefahr einer Rekontamination dadurch vermindert, dass das Gehäuse des Sicher- heitsventils ständig mit Dampf, allerdings drucklos, durchströmt wird. Diese Verfahrensweise führt zu einer permanenten lokalen Erwärmung des Rohrleitungsnetzes, was durch die Wärmeleitung innerhalb der metallischen Rohrleitungswerkstoffe in entfernteren Regionen zu einer einfachen Temperaturerhöhung führt, ohne Sterilisierungseffekt. Eine derartige leichte Temperaturerhöhung beschleunigt wiederum das Keimwachstum. Weiterhin ist diese Lösung, energetisch problematisch.In sterile pipe systems to be kept in pressure surges there is a risk that the valve opens briefly to the unsterile discharge line and a recontamination takes place. When used in filling processes for foods, in particular beverages, the risk of recontamination is reduced by the fact that the housing of the safety valve constantly with steam, but without pressure, flows through. This procedure leads to a permanent local heating of the pipeline network, which leads to a simple increase in temperature by the heat conduction within the metallic piping materials in more remote regions, without sterilization effect. Such a slight increase in temperature in turn accelerates the growth of germs. Furthermore, this solution is energetically problematic.
[0004] Bekannt ist der Einsatz einer Berstscheibe, die mit einem nachgeschalteten Sicherheitsventil gekoppelt ist. Die Berstscheibe schließt mehr oder weniger eben mit der Rohrleitung ab und wird einseitig bei den regelmäßigen Reinigungs- und Sterilisierungs- routinen behandelt. Diese Lösung ermöglicht es, dass bei einem Bruch der Berstscheibe der Prozess kontrolliert beendet werden kann. Nachteilig an dem Einsatz von Berstscheiben sind die Kosten bei dem Verlust einer Berstscheibe und dem nachfolgenden Arbeitsund Reinigungsaufwand, wenn eine Berstscheibe ersetzt werden muss. Die Aufgabe der Erfindung ist es daher, eine Vorrichtung zu offenbaren, die die vorstehend genannten Nachteile behebt. [0005] Dies wir durch eine Überdrucksicherungsvorrichtung (1) für Rohrleitungsnetzwerken erreicht, die eine Zuleitung umfasst, welche von dem zu sichernden Rohrleitungsnetzwerk zu der Überdrucksicherungsvorrichtung (1) führt, mindestens ein Sicherheitsventil und eine Ableitung aufweist. Zentral hierbei ist, dass mindestens zwei Sicherheits- ventile (2)(3) vorgesehen sind, und beide Sicherheitsventile eine Einlassseite und eine Auslassseite aufweisen, wobei das erste Sicherheitsventil (2) mit einer Leitung des Rohrleitungsnetzwerkes verbunden ist, und das ersten mit dem zweiten Sicherheitsventil (3) über eine Verbinduπgsrohrleitung (4) verbunden ist. Dabei weist die Verbindungsrohrleitung (4) eine Zuleitung und eine Ableitung aufweist, über welche ein flüssiges oder gas- förmiges Spül-, Reinigungs- und/oder Sterilisierungsmittel zu- und ableitbar ist.It is known to use a rupture disc, which is coupled to a downstream safety valve. The rupture disc is more or less level with the tubing and is treated unilaterally during regular cleaning and sterilization routines. This solution makes it possible to end the process in a controlled manner in the event of a rupture of the rupture disk. A disadvantage of the use of rupture disks is the cost of losing a rupture disk and the subsequent work and cleaning effort when a rupture disk must be replaced. The object of the invention is therefore to disclose a device which overcomes the disadvantages mentioned above. This is achieved by an overpressure safety device (1) for pipeline networks, which comprises a supply line which leads from the pipeline network to be secured to the overpressure safety device (1), at least one safety valve and one discharge line. Central here is that at least two safety valves (2) (3) are provided, and both safety valves have an inlet side and an outlet side, wherein the first safety valve (2) is connected to a line of the pipeline network, and the first with the second Safety valve (3) via a Verbinduπgsrohrleitung (4) is connected. In this case, the connecting pipe (4) has a supply line and a discharge line, via which a liquid or gaseous rinsing, cleaning and / or sterilizing agent can be supplied and discharged.
[0006] Idealerweise ist das erste Sicherheitsventil (2) derart konstruiert oder eingestellt, dass dieses einem höheren Grenzdruck standhält, als das Sicherheitsventil (3). Diese Konstruktion ermöglicht es, dass das Öffnen des ersten Sicherheitsventils nicht zu einer Unsterilität führt, sondern das Verfahren im Anschluss an einen Druckschlag oder eine Druckspitze nicht unterbrochen werden muss. Der Rohrinnenraum der Verbindungsrohrleitung kann nach einem solchen Ereignis und regelmäßig mit einem geeigneten Sterilisierungsmittel beaufschlagt werden, wie zum Beispiel Dampf, Ozon, H2O2 oder Peressigsäure. Unter Grenzdruck soll hierbei die Druckhöhe verstanden werden, bei der das jeweilige Sicherheitsventil öffnet. [0007] Vorteilhafterweise ist die Belastbarkeit der Sicherheitsventile derart, dass der Grenzdruck des zweiten Sicherheitsventils (3) um 50% unterhalb des Grenzdruckes des ersten Sicherheitsventils (2) liegt oder noch kleiner ist. Dabei muss beachtet werden, dass der Druck des Sterilisierungsmediums, das durch die Verbindungsrohrleitung geleitet wird, unterhalb des Grenzdrucks des zweiten Sicherheitsventils liegt. [0008] Die Strömungsführung in der Verbindungsrohrleitung (4) kann insbesondere beim Einsatz von flüssigen Sterilisationsmitteln problematisch sein, so dass bei einer verbesserten Variante die Zuleitung des Sterilisierungsmittels direkt in die Auslassseite des ersten Sicherheitsventils (2) führt und die Ableitung direkt mit der Einlassseite des zweiten Sicherheitsventils (3) verbunden ist. Hierdurch wird sichergestellt, dass eine definierte Strömung in der Verbindungsrohrleitung (4) erfolgt.Ideally, the first safety valve (2) is constructed or adjusted such that it withstands a higher limit pressure than the safety valve (3). This design allows the opening of the first safety valve not to lead to sterility, but the process must not be interrupted following a pressure shock or a pressure peak. The pipe interior of the connecting pipe can be acted upon after such an event and regularly with a suitable sterilizing agent, such as steam, ozone, H 2 O 2 or peracetic acid. By limiting pressure is meant here the pressure level at which the respective safety valve opens. Advantageously, the load capacity of the safety valves is such that the limit pressure of the second safety valve (3) is 50% below the limit pressure of the first safety valve (2) or even smaller. It should be noted that the pressure of the sterilizing medium, which is passed through the connecting pipe, is below the limit pressure of the second safety valve. The flow guide in the connecting pipe (4) can be problematic especially when using liquid sterilizing agents, so that leads in an improved variant, the supply of sterilizing agent directly into the outlet side of the first safety valve (2) and the derivative directly with the inlet side of the second safety valve (3) is connected. This ensures that a defined flow in the connecting pipe (4) takes place.
[0009] Diese Variante kann noch verbessert werden, indem das Ende der Zuleitung in der Auslassseite oder in der Verbindungsrohrleitung derart ausgerichtet wird, dass dessen Auslass auf den Ventilsitz des ersten Sicherheitsventils (2) gerichtet ist. Damit wird eine schnellst mögliche und hoch effektive Sterilisierung des Ventilsitzes sicher gestellt. Das Ende der Zuleitung sollte hierfür vom Ventilsitz des ersten Sicherheitsventils (2) maximal 20 mm entfernt sein.This variant can be further improved by the end of the supply line in the outlet side or in the connecting pipe is oriented such that its outlet is directed to the valve seat of the first safety valve (2). This ensures the fastest possible and highly effective sterilization of the valve seat. The end of the supply line should be a maximum of 20 mm away from the valve seat of the first safety valve (2).
[0010] Eine weite Verbesserung besteht darin, dass mehrere Zuleitungen in die Verbindungsrohrleitung (4) führen oder dass auf beide Ventilsitze, den Ventilsitz des ersten und des zweiten Sicherheitsventils, mindestens ein Auslass der Zuleitung gerichtet ist. [0011] Vorteilhafterweise sollte in der Ableitung ein Kondensatabscheider angeordnet sein und die Verbindungsrohrleitung (4) derart angeordnet oder geformt sein, dass Kondensat frei abfließen kann.A wide improvement consists in that several supply lines lead into the connecting pipe (4) or that at least one outlet of the supply line is directed to both valve seats, the valve seat of the first and the second safety valve. Advantageously, should be arranged in the discharge a Kondensatabscheider and the connecting pipe (4) arranged or shaped so that condensate can flow freely.
[0012] Von der Erfindung ist weiterhin umfasst ein Verfahren zur Überdruckabsicherung von Rohrleitungsnetzwerken, welches eine Ausführungsform der vorstehend genannten Vorrichtungen umfasst.The invention further comprises a method for overpressure protection of piping networks, which comprises an embodiment of the aforementioned devices.
[0013] Die Erfindung ist anhand von zwei Ausführungsbeispielen in den Figuren 1 und 2 gezeigt.The invention is shown with reference to two embodiments in Figures 1 and 2.
Figur 1 zeigt schematisch die grundsätzliche Anordnung Figur 2 zeigt eine spezielle Anordnung der Auslässe innerhalb der Verbindungsrohrleitung.Figure 1 shows schematically the basic arrangement Figure 2 shows a special arrangement of the outlets within the connecting pipe.
[0014] Figur 1 ein zeigt schematisch die Überdrucksicherungsvorrichtung 1 , umfassend die beiden Sicherheitsventile 2 und 3. Das erste Sicherheitsventil 2, mit einem Grenzdruck von 5,5 bar und das zweite Sicherheitsventil 3 mit einem Grenzdruck von 2,0 bar, sind über die Verbindungsrohrleitung 4 verbunden. Das Sicherheitsventil 2 ist über einen Rohrstutzen 5 mit der Rohrleitung 6 verbunden, die Teil des zu überwachenden Rohrleitungsnetzwerkes (nicht dargestellt) ist. Zu der Verbindungsrohrleitung 4 führt eine Zuleitung 7, in deren Leitungsweg ein gesteuertes Ventil 8 und eine Rückschlagklappe 9 angeordnet ist. Der Pfeil deutet die Strömungsrichtung des Sterilisierungsmediums an. [0015] Von der Verbindungsrohrleitung 4 weg führt die Ableitung 10, die mit einem Kondensatabscheider 11 verbunden ist. Die in Figur 1 gezeigte Überdrucksicherungsvorrichtung 1 wird idealerweise mit Dampf beaufschlagt. Der Dampf bildet eine aktive Sterilsperre. Im Bedarfsfall ist es möglich, den Zwischenraum kontinuierlich zu sterilisiert. Der besondere Vorteil liegt darin, dass selbst bei einem Defekt des Faltenbalgs über den Ventil- schaft keine Kontamination in das Rohrleitungssystem hinein stattfinden kann.Figure 1 shows schematically the overpressure protection device 1, comprising the two safety valves 2 and 3. The first safety valve 2, with a limiting pressure of 5.5 bar and the second safety valve 3 with a limit pressure of 2.0 bar, are on the Connecting pipe 4 connected. The safety valve 2 is connected via a pipe socket 5 with the pipe 6, which is part of the monitored pipeline network (not shown). To the connecting pipe 4 leads a supply line 7, in the conduction path of a controlled valve 8 and a check valve 9 is arranged. The arrow indicates the flow direction of the sterilization medium. From the connecting pipe 4 away leads the derivative 10, which is connected to a condensate 11. The overpressure protection device 1 shown in FIG. 1 is ideally supplied with steam. The vapor forms an active sterile barrier. If necessary, it is possible to sterilize the gap continuously. The particular advantage is that even in the case of a defect of the bellows over the valve stem, no contamination into the piping system can take place.
[0016] Eventuelle Produktleckagen des ersten Sicherheitsventils 2 bei Druckspitzen im Rohr 6, fließen diese zusammen mit dem Kondensat ab. Bei der Reinigung werden beide Sicherheitsventile zusammen getaktet. Bei Sterilisation brauchen die Ventile nicht getaktet werden, weil das heiße Wasser in der Produktrohrleitung zusammen mit dem Dampf in der Verbindungsrohrleitung 4 den Ventilsitz ausreichend aufheizt und sterilisiert. Unterhalb der Auslassseite 19 des zweiten Sicherheitsventils 3 ist ein Abfluss 20 vorgesehen.Possible product leaks of the first safety valve 2 at pressure peaks in the pipe 6, these flow together with the condensate. During cleaning, both safety valves are clocked together. During sterilization, the valves do not need to be clocked because the hot water in the product tubing together with the steam in the connecting tubing 4 sufficiently heats and sterilizes the valve seat. Below the outlet side 19 of the second safety valve 3, a drain 20 is provided.
[0017] Figur 2 zeigt ebenfalls schematisch die Überdrucksicherungsvorrichtung 1 , welche insbesondere für den Einsatz eines flüssigen Sterilisierungsmediums geeignet ist. Die Zuleitung 7 verzweigt sich in der Verbindungsrohrleitung in einen linken und einen rechten Ast. Der rechte Ast führt in die Auslassseite 12 des ersten Sicherheitsventils 2 und der Auslass 13 des rechten Astes der Zuleitung 7 ist direkt auf den Ventilsitz 14 gerichtet. [0018] Der linke Ast der Zuleitung 7 führt in die Einlassseite 15 des zweiten Sicherheitsventils 3 und der Auslass 16 steht dem Ventilsitz 17 direkt gegenüber und ist auf diesen gerichtet. Im Bereich des Flansches 18 ist eine Erweiterung vorgesehen, so dass sich Restflussigkeit oder Kondensat dort sammeln und abfließen kann In diesem Bereich ist auch die Ableitung 10 angeordnet. Diese Anordnung sicher eine ideale Stromungsfuhrung in der Verbindungsrohrleitung 4 Figure 2 also shows schematically the overpressure protection device 1, which is particularly suitable for the use of a liquid sterilization medium. The supply line 7 branches in the connecting pipe into a left and a right branch. The right branch leads into the outlet side 12 of the first safety valve 2 and the outlet 13 of the right branch of the supply line 7 is directed directly onto the valve seat 14. The left branch of the supply line 7 leads into the inlet side 15 of the second safety valve 3 and the outlet 16 is the valve seat 17 directly opposite and is directed to this. In the region of the flange 18, an extension is provided so that residual liquid or condensate can collect and drain there. In this area, the discharge line 10 is also arranged. This arrangement certainly an ideal Stromungsfuhrung in the connecting pipe. 4

Claims

Patentansprüche claims
1. Überdrucksicherungsvorrichtung (1) für Rohrleitungsnetzwerken, umfassend eine Zuleitung, welche von dem zu sichernden Rohrleitungsnetzwerk zu der Überdrucksicherungsvorrichtung (1) führt und weiterhin mindestens ein Sicherheitsventil und eine Ableitung aufweist, dadurch gekennzeichnet, dass mindestens zwei Sicherheitsventile (2)(3) vorgesehen sind, und beide Sicherheitsventile eine Einlassseite und eine Auslassseite aufweisen, wobei das erste Sicherheitsventil (2) mit einer Leitung des Rohrleitungsnetzwerkes verbunden ist, das ersten mit dem zweiten Sicherheitsventil (3) über eine Verbindungsrohrleitung (4) verbunden ist, wobei die Verbindungsrohrleitung (4) eine Zuleitung (7) und eine Ableitung (10) aufweist, über welche ein flüssiges oder gasförmiges Spül-, Reinigungs- und/oder Sterilisierungsmittel zu- und ableitbar ist.An overpressure protection device (1) for pipeline networks, comprising a supply line leading from the pipeline network to be secured to the overpressure protection device (1) and further comprising at least one safety valve and a drain, characterized in that at least two safety valves (2) (3) are provided and both safety valves have an inlet side and an outlet side, the first safety valve (2) being connected to a pipeline of the pipeline network, the first being connected to the second safety valve (3) via a connecting pipeline (4), the connecting pipeline (4 ) has a supply line (7) and a discharge line (10), via which a liquid or gaseous rinsing, cleaning and / or sterilizing agent is supplied and derivable.
2. Überdrucksicherungsvorrichtung gemäß Anspruch 1 , dadurch gekennzeichnet, dass das erste Sicherheitsventil (2) einen höheren Grenzdruck standhält, als das Sicherheitsventil (3).2. Overpressure safety device according to claim 1, characterized in that the first safety valve (2) withstands a higher limit pressure than the safety valve (3).
3. Überdrucksicherungsvorrichtung gemäß Anspruch 2, dadurch gekennzeichnet, dass der Grenzdruck des zweiten Sicherheitsventils (3) 50% oder kleiner ist als der Grenzdruck des ersten Sicherheitsventils (2).3. Overpressure safety device according to claim 2, characterized in that the limit pressure of the second safety valve (3) is 50% or less than the limit pressure of the first safety valve (2).
4. Überdrucksicherungsvorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Zuleitung (7) in die Auslassseite (13) des ersten Sicherheitsventils (2) führt und die Ableitung (10) in die Einlassseite (15) des zweiten Sicherheitsventils (3) führt.4. overpressure safety device according to one of the preceding claims, characterized in that the supply line (7) in the outlet side (13) of the first safety valve (2) and leads the discharge (10) in the inlet side (15) of the second safety valve (3) ,
5. Überdrucksicherungsvorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Ende der Zuleitung in der Auslassseite oder in der Verbindungsrohrleitung derart ausgerichtet ist, dass dessen Auslass auf den Ventilsitz des ersten Sicherheitsventils (2) gerichtet ist.5. Overpressure protection device according to one of the preceding claims, characterized in that the end of the supply line in the outlet side or in the connecting pipe is oriented such that its outlet is directed to the valve seat of the first safety valve (2).
6. Überdrucksicherungsvorrichtung gemäß einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass das Ende der Zuleitung (7) vom Ventilsitz des ersten Sicherheitsventils (2) maximal 20 mm entfernt ist. 6. overpressure protection device according to one of claims 4 or 5, characterized in that the end of the supply line (7) from the valve seat of the first safety valve (2) is a maximum of 20 mm away.
7. Überdrucksicherungsvorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das mehrere Zuleitungen in die Verbindungsrohrleitung (4) führen.7. Overpressure protection device according to one of the preceding claims, characterized in that the lead several supply lines in the connecting pipe (4).
8. Überdrucksicherungsvorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das auf den Ventilsitz des ersten und des zweiten Sicherheitsventils mindestens ein Auslass der Zuleitung gerichtet ist.8. Overpressure protection device according to one of the preceding claims, characterized in that the at least one outlet of the supply line is directed onto the valve seat of the first and the second safety valve.
9. Überdrucksicherungsvorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass in der Ableitung eine Kondensatabscheider (11) angeordnet ist und die Verbindungsrohrleitung (4) derart angeordnet oder geformt ist, dass Kondensat abfließen kann.9. overpressure protection device according to one of the preceding claims, characterized in that in the discharge a Kondensatabscheider (11) is arranged and the connecting pipe (4) is arranged or shaped so that condensate can flow.
10. Verfahren zur Überdruckabsicherung von Rohrleitungsnetzwerken, dadurch gekennzeichnet, dass eine Vorrichtung gemäß einem der vorstehend genannten Ansprüche eingesetzt wird.10. A method for overpressure protection of piping networks, characterized in that a device according to one of the preceding claims is used.
11. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass als Sterilisationsmittel Dampf, Ozon oder eine Mischung eingesetzt wird.11. The method according to claim 10, characterized in that is used as a sterilizing agent, steam, ozone or a mixture.
12. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass als Sterilisationsmittel H2O2 oder Peressigsäure eingesetzt wird. 12. The method according to claim 10, characterized in that is used as the sterilizing agent H2O2 or peracetic acid.
EP20090729440 2008-04-11 2009-03-21 Device and method for aseptic pressure relief Active EP2279048B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09729440T PL2279048T3 (en) 2008-04-11 2009-03-21 Device and method for aseptic pressure relief

Applications Claiming Priority (2)

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DE102008018665A DE102008018665B4 (en) 2008-04-11 2008-04-11 Device and method for aseptic pressure relief
PCT/EP2009/002099 WO2009124648A1 (en) 2008-04-11 2009-03-21 Device and method for aseptic pressure relief

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EP2279048A1 true EP2279048A1 (en) 2011-02-02
EP2279048B1 EP2279048B1 (en) 2011-07-20

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US (1) US8985134B2 (en)
EP (1) EP2279048B1 (en)
AT (1) ATE516894T1 (en)
CA (1) CA2712646C (en)
DE (1) DE102008018665B4 (en)
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WO (1) WO2009124648A1 (en)

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Also Published As

Publication number Publication date
WO2009124648A1 (en) 2009-10-15
US20110017313A1 (en) 2011-01-27
CA2712646A1 (en) 2009-10-15
ATE516894T1 (en) 2011-08-15
EP2279048B1 (en) 2011-07-20
US8985134B2 (en) 2015-03-24
DE102008018665A1 (en) 2009-10-29
DE102008018665B4 (en) 2011-02-03
PL2279048T3 (en) 2011-12-30
CA2712646C (en) 2012-10-23

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