EP0033955B1 - Closed expansion tank with two reservoirs within one another - Google Patents

Closed expansion tank with two reservoirs within one another Download PDF

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Publication number
EP0033955B1
EP0033955B1 EP19810100839 EP81100839A EP0033955B1 EP 0033955 B1 EP0033955 B1 EP 0033955B1 EP 19810100839 EP19810100839 EP 19810100839 EP 81100839 A EP81100839 A EP 81100839A EP 0033955 B1 EP0033955 B1 EP 0033955B1
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EP
European Patent Office
Prior art keywords
gas
expansion vessel
inner container
container
outer container
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.)
Expired
Application number
EP19810100839
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German (de)
French (fr)
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EP0033955A1 (en
Inventor
Heinrich Holztrattner
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Individual
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Individual
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Publication of EP0033955A1 publication Critical patent/EP0033955A1/en
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Publication of EP0033955B1 publication Critical patent/EP0033955B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/08—Arrangements for drainage, venting or aerating
    • F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
    • F24D19/083—Venting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks

Definitions

  • the invention relates to a closed expansion vessel for liquid energy sources according to the preamble of claim 1.
  • Such a device has become known from DE-B-2743509 and for this purpose comprises a membrane expansion vessel through which a gas and a heating medium chamber are separated.
  • the gas medium chamber is connected via an additional line to a gas refill device which, via different valves depending on the water and gas pressure, delivers the gas removed from the heating medium to the gas chamber in the membrane expansion vessel.
  • the object of the invention is to provide an expansion vessel of the generic type for liquid energy sources with significantly lower construction costs, which, if necessary, additionally enables a cleaning option for the liquid energy source.
  • the object is achieved according to the features specified in the characterizing part of claim 1.
  • Advantageous embodiments of the invention are specified in the subclaims.
  • the present invention for the first time creates an extremely simple expansion vessel with an integrated gas chamber, which simultaneously serves as a gas collecting chamber and as a gas compensation chamber for the expansion vessel.
  • the expansion vessel consists of a container with an inlet connection below a gas separator, for example in the form of a mesh, for the liquid energy carrier which flows out again through a lower outflow at the lower part of the container.
  • the gas mixture contained in the liquid energy carrier is discharged into a gas mixture space or gas chamber arranged in the upper part of the container, the suspended matter also sinking to a sludge valve through the lower outlet opening.
  • an outer container is provided which comprises the container containing the gas chamber.
  • an overflow line which can be provided with a ventilation device, is guided from the inner container in order to prevent the gas mixture from the gas chamber through the lower part of the inner container into the can reach the outer container.
  • a cutting disc which is arranged inside the inner container to slide and float is also provided. This enables a better separation of the gas mixture and the liquid energy source.
  • the inner container 4 has a lower part 5, into which an inlet connection 6 opens.
  • the inner container 4 is open on the side facing the sludge valve 3 and there has an outlet opening for the energy source.
  • a gas separator in the form of a mesh is installed above the inlet connection 6. This causes the gas mixture to be separated from the liquid energy source flowing in through the inlet connection 6.
  • the separated gas mixture rises into the inner container 4 and forms a gas chamber or a gas collecting space 8 in the upper region.
  • the volume changes of the energy carrier are compensated for by the compression or the expansion of the gas mixture. If the amount of gas mixture in the gas chamber 8 becomes too large, the excess amount can escape through an overflow line 9.
  • the overflow line 9 is connected to a venting device 10, e.g. in the form of an automatic air pot, etc., which prevents the liquid energy source from escaping.
  • a shut-off device 11 z. B. arranged in the form of a ball valve, etc., through which a gas mixture can be pressed into the gas chamber 8 in order to be able to check the tightness of the inner container 4 above the inlet connection 6.
  • precautions are taken to ensure that the liquid level of the energy carrier comes to lie above the gas separator 7 in the form of a mesh.
  • a floating cutting disc 12 can also be installed in the inner container 4.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Sludge (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Description

Die Erfindung betrifft ein geschlossenes Ausdehnungsgefäss für flüssige Energieträger nach dem Oberbegriff des Anspruches 1.The invention relates to a closed expansion vessel for liquid energy sources according to the preamble of claim 1.

Eine derartige Vorrichtung ist aus der DE-B-2743509 bekanntgeworden und umfasst hierzu ein Membranausdehnungsgefäss, durch das eine Gas- und eine Heizmediumkammer getrennt sind. Die Gasmediumkammer ist über eine zusätzliche Leitung mit einer Gasnachfülleinrichtung verbunden, die über jeweils verschiedene Ventile in Abhängigkeit vom Wasser- und Gasdruck das aus dem Heizmedium entnommene Gas an die Gaskammer im Membranausdehnungsgefäss abgibt.Such a device has become known from DE-B-2743509 and for this purpose comprises a membrane expansion vessel through which a gas and a heating medium chamber are separated. The gas medium chamber is connected via an additional line to a gas refill device which, via different valves depending on the water and gas pressure, delivers the gas removed from the heating medium to the gas chamber in the membrane expansion vessel.

Die gesamte Anordnung ist aber höchst aufwendig und birgt von daher zahlreiche Mängel insbesondere im Hinblick auf Ausfall von Ventilen und Wartungsproblemen. Zudem ist eine Reinigung des Energieträgers, d.h. des umlaufenden Heizmediums nicht vorgesehen.However, the entire arrangement is extremely complex and therefore has numerous shortcomings, in particular with regard to valve failure and maintenance problems. In addition, cleaning of the energy source, i.e. of the circulating heating medium is not provided.

Auch aus der DE-B-2 743 510 ist eine Umlaufheizungsanlage mit einem Membranausdehnungsgefäss und mit einer Gasnachschubeinrichtung bekanntgeworden, (Fig. 2). Diese Anordnung ist insgesamt mit den vorgesehenen Ventilen und zusätzlichen Membranen zur Teilung von Gasräumen noch komplizierter und aufwendiger als die eingangs genannte vorbekannte Umlaufheizungsanlage ausgestaltet.From DE-B-2 743 510 a circulation heating system with a membrane expansion vessel and with a gas replenishment device has also become known (FIG. 2). Overall, this arrangement is designed with the provided valves and additional membranes for dividing gas spaces to be even more complicated and complex than the previously known circulation heating system mentioned at the beginning.

Aufgabe der Erfindung ist es ein gattungsgemässes Ausdehnungsgefäss für flüssige Energieträger mit deutlich geringerem Bauaufwand zu schaffen, die gegebenenfalls zusätzlich eine Reinigungsmöglichkeit für den flüssigen Energieträger ermöglicht. Die Aufgabe wird erfindungsgemäss entsprechend den im kennzeichnenden Teil des Anspruches 1 angegebenen Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The object of the invention is to provide an expansion vessel of the generic type for liquid energy sources with significantly lower construction costs, which, if necessary, additionally enables a cleaning option for the liquid energy source. The object is achieved according to the features specified in the characterizing part of claim 1. Advantageous embodiments of the invention are specified in the subclaims.

Durch die vorliegende Erfindung wird erstmals ein äusserst einfach aufgebautes Ausdehnungsgefäss mit einer integriert angeordneten Gaskammer geschaffen, die gleichzeitig als Gassammelraum und als Gasausgleichskammer für das Ausdehnungsgefäss dient. Dazu besteht das Ausdehnungsgefäss aus einem Behälter mit einem Einlassanschluss unterhalb eines Gasabscheiders, beispielsweise in Form eines Geflechtes, für den flüssigen Energieträger, der durch einen unteren Ausfluss am unteren Teil des Behälters wieder ausströmt. Dabei wird das im flüssigen Energieträger enthaltene Gasgemisch in einen, im oberen Teil des Behälters angeordneten Gasgemischraum bzw. Gaskammer abgegeben, wobei ferner die Schwebstoffe zu einem Entschlammventil durch die untere Austrittsöffnung absinken. Um eine gute Trennung von den Schwebstoffen zu ermöglichen ist ein äusserer Behälter vorgesehen, der den die Gaskammer beinhaltenden Behälter umfasst.The present invention for the first time creates an extremely simple expansion vessel with an integrated gas chamber, which simultaneously serves as a gas collecting chamber and as a gas compensation chamber for the expansion vessel. For this purpose, the expansion vessel consists of a container with an inlet connection below a gas separator, for example in the form of a mesh, for the liquid energy carrier which flows out again through a lower outflow at the lower part of the container. The gas mixture contained in the liquid energy carrier is discharged into a gas mixture space or gas chamber arranged in the upper part of the container, the suspended matter also sinking to a sludge valve through the lower outlet opening. In order to enable a good separation from the suspended matter, an outer container is provided which comprises the container containing the gas chamber.

In einer vorteilhaften Weiterbildung der Erfindung nach Anspruch 2 ist vorgesehen, dass aus dem inneren Behälter eine Überströmleitung, die mit einer Entlüftungsvorrichtung versehen sein kann, geführt ist, um zu verhindern, dass das Gasgemisch aus der Gaskammer durch den unteren Teil des inneren Behälters in den äusseren Behälter gelangen kann.In an advantageous development of the invention according to claim 2, it is provided that an overflow line, which can be provided with a ventilation device, is guided from the inner container in order to prevent the gas mixture from the gas chamber through the lower part of the inner container into the can reach the outer container.

In einer Weiterbildung nach Anspruch 3 ist ferner eine im inneren Behälter innen an der Wand gleitend und schwimmend angeordnete Trennscheibe vorgesehen. Hierdurch wird eine bessere Trennung des Gasgemisches und des flüssigen Energieträgers ermöglicht.In a further development according to claim 3, a cutting disc which is arranged inside the inner container to slide and float is also provided. This enables a better separation of the gas mixture and the liquid energy source.

Nachfolgend wird die Erfindung anhand von Zeichnungen näher erläutert. Dabei zeigen im einzelnen:

  • Fig. 1 einen Längsschnitt durch das Ausdehnungsgefäss längs der Linie A-B in Fig. 2,
  • Fig. 2 eine Draufsicht auf das Ausdehnungsgefäss gemäss Fig. 1 bei abgenommenem oberem Boden.
The invention is explained in more detail below with reference to drawings. The individual shows:
  • 1 shows a longitudinal section through the expansion vessel along the line AB in FIG. 2,
  • Fig. 2 is a plan view of the expansion tank of FIG. 1 with the top removed.

In den Figuren ist ein äusserer Behälter 1 des Ausdehnungsgefässes mit Auslassanschluss 2 und einem Entschlammventil 3, z.B. in Form eines Kugelhahnes, Schrägsetzventils, Absperrhahnes, usw., gezeigt, wobei in dem äusseren Behälter 1 ein innerer Behälter 4 eingebaut ist. Der innere Behälter 4 weist einen unteren Teil 5 auf, in den ein Einlassanschluss 6 mündet. Der innere Behälter 4 ist auf der dem Entschlammventil 3 zuliegenden Seite offen und weist dort eine Austrittsöffnung für den Energieträger auf. In dem unteren Teil 5 des inneren Behälters 4 ist oberhalb des Einlassanschlusses 6 ein Gasabscheider in Form eines Geflechtes eingebaut. Hierdurch wird die Abscheidung des Gasgemisches aus dem durch den Einlassanschluss 6 einströmenden flüssigen Energieträger bewirkt. Das ausgeschiedene Gasgemisch steigt in den inneren Behälter 4 auf und bildet dort im oberen Bereich eine Gaskammer bzw. einen Gassammelraum 8. Durch das Komprimieren oder die Ausdehnung des Gasgemisches werden die Volumenänderungen des Energieträgers ausgeglichen. Falls die Gasgemischmenge in der Gaskammer 8 zu gross wird, kann die Überschussmenge durch eine Überströmleitung 9 entweichen. Die Überströmleitung 9 ist mit einer Entlüftungsvorrichtung 10, z.B. in Form eines automatischen Lufttopfes usw., versehen, wodurch verhindert wird, dass der flüssige Energieträger ausströmen kann. Ferner ist an der Überströmleitung 9 ein Absperrorgan 11 z. B. in Form eines Kugelhahnes usw. angeordnet, durch das ein Gasgemisch in die Gaskammer 8 pressbar ist, um die Dichtheit des inneren Behälters 4 oberhalb des Einlassanschlusses 6 prüfen zu können. Um die Aufnahme des Gasgemisches in den flüssigen Energieträger zu verhindern, ist Vorsorge getroffen, dass der Flüssigkeitspegel des Energieträgers oberhalb des in Form eines Geflechtes ausgebildeten Gasabscheiders 7 zu liegen kommt.In the figures, an outer container 1 of the expansion vessel with outlet connection 2 and a sludge valve 3, e.g. in the form of a ball valve, slanting valve, shut-off valve, etc., shown, wherein an inner container 4 is installed in the outer container 1. The inner container 4 has a lower part 5, into which an inlet connection 6 opens. The inner container 4 is open on the side facing the sludge valve 3 and there has an outlet opening for the energy source. In the lower part 5 of the inner container 4, a gas separator in the form of a mesh is installed above the inlet connection 6. This causes the gas mixture to be separated from the liquid energy source flowing in through the inlet connection 6. The separated gas mixture rises into the inner container 4 and forms a gas chamber or a gas collecting space 8 in the upper region. The volume changes of the energy carrier are compensated for by the compression or the expansion of the gas mixture. If the amount of gas mixture in the gas chamber 8 becomes too large, the excess amount can escape through an overflow line 9. The overflow line 9 is connected to a venting device 10, e.g. in the form of an automatic air pot, etc., which prevents the liquid energy source from escaping. Furthermore, a shut-off device 11 z. B. arranged in the form of a ball valve, etc., through which a gas mixture can be pressed into the gas chamber 8 in order to be able to check the tightness of the inner container 4 above the inlet connection 6. In order to prevent the gas mixture from being absorbed into the liquid energy carrier, precautions are taken to ensure that the liquid level of the energy carrier comes to lie above the gas separator 7 in the form of a mesh.

Ferner kann, wie in Fig. 1 gezeigt ist, je nach Grösse des inneren Behälters 4 zusätzlich eine schwimmende Trennscheibe 12 im inneren Behälter 4 eingebaut sein.Furthermore, as shown in FIG. 1, depending on the size of the inner container 4, a floating cutting disc 12 can also be installed in the inner container 4.

Claims (3)

1. A closed expansion vessel for liquid energy vehicles, in the case of which the said expansion vessel with its gas trap (7) and a gas chamber (8) is made part of a circulatory system, characterized in that the said gas trap (7) is placed within the said expansion vessel and to this end the expansion vessel is made up of an inner container (4) and an outer container (1), said outer container being separated by a liquid energy vehicle, and the inner container (4) has an inlet connection (6) and an outlet opening for the energy vehicle on its lower part (5), and the gas trap (7) is placed at a higher level than the inlet connection (6) so that the gas take-up space formed in the inner container (4) over the gas trap (7) has at the same time the function of a diaphragm-less gas chamber'(8) for the expansion vessel, and in that, at a lower level than the outlet opening on the lower part (5) of the inner container (4) in the outer container (1), there is a sludge let-off valve (3), and at the top end of the outer container (1) there is an outlet connection (2).
2. The expansion vessel as claimed in claim 1 characterized in that the inner container (4) has an overflow duct (9) at a higher level than the lower part (5) with an air let-off means (10) worked by the gas mixture in the inner container (4).
3. The expansion vessel as claimed in claim 1 or claim 2 characterized by a floating separating disk (12) sliding along the inner wall face of the inner container (4) and placed in same.
EP19810100839 1980-02-08 1981-02-06 Closed expansion tank with two reservoirs within one another Expired EP0033955B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT673/80 1980-02-08
AT67380A AT365762B (en) 1980-02-08 1980-02-08 CLOSED EXPANSION VESSEL WITH TWO CONTAINING CONTAINERS

Publications (2)

Publication Number Publication Date
EP0033955A1 EP0033955A1 (en) 1981-08-19
EP0033955B1 true EP0033955B1 (en) 1984-08-01

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ID=3496804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810100839 Expired EP0033955B1 (en) 1980-02-08 1981-02-06 Closed expansion tank with two reservoirs within one another

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EP (1) EP0033955B1 (en)
AT (1) AT365762B (en)
DE (1) DE3165145D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320333A1 (en) * 1993-06-21 1994-12-22 Jens Pannenborg Method for monitoring and regulating the water level and prestressing force in diaphragm expansion vessels

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391552B (en) * 1989-03-01 1990-10-25 Vaillant Gmbh HOT WATER TANK
NL1032749C2 (en) * 2006-10-25 2008-04-28 Bronwater Service B V Expansion vessel equipped with a float.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2743509C3 (en) * 1977-09-24 1980-09-11 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Circulation heating system
DE2743510C2 (en) * 1977-09-24 1979-10-11 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Circulation heating system with a membrane expansion tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320333A1 (en) * 1993-06-21 1994-12-22 Jens Pannenborg Method for monitoring and regulating the water level and prestressing force in diaphragm expansion vessels
DE4320333C2 (en) * 1993-06-21 2002-11-14 Jens Pannenborg Method and device for securing system pressures in a closed water cycle

Also Published As

Publication number Publication date
EP0033955A1 (en) 1981-08-19
AT365762B (en) 1982-02-10
DE3165145D1 (en) 1984-09-06
ATA67380A (en) 1981-06-15

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