EP0070483B2 - Device for the separation of gases in water-carrying systems - Google Patents

Device for the separation of gases in water-carrying systems Download PDF

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Publication number
EP0070483B2
EP0070483B2 EP82106194A EP82106194A EP0070483B2 EP 0070483 B2 EP0070483 B2 EP 0070483B2 EP 82106194 A EP82106194 A EP 82106194A EP 82106194 A EP82106194 A EP 82106194A EP 0070483 B2 EP0070483 B2 EP 0070483B2
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Prior art keywords
chamber
flow
bell
trapping
cross
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German (de)
French (fr)
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EP0070483A1 (en
EP0070483B1 (en
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Klaus Exsternbrink
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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

Definitions

  • the invention relates to a device for separating gases from water-carrying systems according to the preamble of claim 1.
  • the formation of gas cushions is often observed after some time, which can impair and even interrupt the water circuit, especially in higher radiators, as well as in places with slowed flow.
  • the gas cushioning reduces the circulation in the higher floors compared to the lower ones, which in many cases leads to higher flow temperatures being set in ignorance of the interrelationships, in order to ensure sufficient temperatures in the higher floors To ensure heating output. This further promotes the formation of gas cushions.
  • the thermal efficiency of the entire system continues to decrease.
  • a device known from DE-A-22 15 755 according to the preamble of claim 1 consists of an approximately annular outer chamber which is provided in its outwardly curved bottom and top walls with flush with each other, forming the flow-through chamber inlet and outlet , which expand conically in the interior of the chamber and whose edges delimit an annular passage gap in the region of the transverse central plane of the chamber.
  • rotational system metric gas separation bodies in the form of inverted cones are arranged coaxially to the vertical spatial axis at a distance from one another, so that rising gas bubbles can enter the annular chamber through the annular gap, the upper part of which forms the gas collecting space.
  • the gases emerge from this through a float-operated valve arranged in the upper wall of the chamber.
  • This known device has a large diameter and is inadequate in its function, since gas bubbles can also get into the further upward flowing liquid stream without being separated.
  • the object of the invention is therefore to create an uncomplicated device for separating gases from water-carrying systems, in which all air bubbles circulating in the system are detected and eliminated with certainty.
  • the new device is said to be largely insensitive to fouling due to dirt particles, such as rust particles, etc., which are inevitably carried in a heating water circuit, and to be easy to produce in a cast design.
  • the gas bubbles entrained in the water flow or discharged in the device are caught with certainty, the possibility that they flow past the catch bell is largely excluded.
  • the volume flow, which enters the chamber axially and centrally through the inlet connection, is directed directly against the opening of the collecting bell, which thus exerts a maximum degree of catching effect for the air bubbles.
  • the catch effect is further supported by the fact that the chamber performs a directional function and, moreover, has a zone of flow calming which favors the passage of gas bubbles from the liquid flow into the catch bell.
  • a device for gas separation which consists of a chamber with mutually parallel side walls and is pear-shaped in plan view.
  • the chamber is provided in its lower, wider part with an inlet connection and at right angles to this in the central region of a side wall with a drain pipe, so that the flow in the chamber is deflected by 90 degrees.
  • the chamber is provided in its upper tapered part with a threaded connector for a vent.
  • Flow dividers and deflectors are provided in the chamber, so that vortices rotating radially to the drain pipe are formed, from which gas fractions emerge and collect in the upper, tapering part of the chamber.
  • the upper part of the chamber is of flared configuration in plan view, but it does not form a catch bell inserted into a flow-through chamber in the sense of the invention.
  • the flow cross section for the liquid in the lower region of the chamber is at least partially smaller than the cross section of the inlet connection. This advantageously results in the formation of expansion air bubbles. The deposition efficiency can be further improved in this way.
  • the chamber is a body formed by at least partially rotationally symmetrical walls with inlet and outlet connections arranged approximately in the axis of symmetry.
  • the advantage of this embodiment is that a low-resistance flow system is created in this way, which does not significantly impede or adversely affect the circulation of the water. It is also advantageous that an inexpensive manufacture of the chamber is possible.
  • the ventilation duct is led out obliquely upwards out of the chamber and carries the catch bell at its lower end. In this way, a very uncomplicated configuration is achieved, which facilitates the manufacture of the device and thus influences the manufacturing costs very favorably.
  • the catch bell has a plate designed as a gas separation body, which is preferably flat and horizontal.
  • the plate is a porous metal part, such as a fine-mesh screen fabric, metal cloth, sintered metal, metal wool or the like. is.
  • Such metal parts and materials, including brass, are commercially available and can be processed without difficulty.
  • the plate can also be a porous plastic part, which has the advantage that such material is completely immune to corrosion.
  • the catch bell is at least partially filled with gas-permeable material such as glass wool, glass wool, rock wool, stainless steel wool, granular free-flowing ceramic bodies, coarsely classified sand etc. and with a sieve cloth or the like. is closed.
  • gas-permeable material such as glass wool, glass wool, rock wool, stainless steel wool, granular free-flowing ceramic bodies, coarsely classified sand etc. and with a sieve cloth or the like. is closed.
  • gas-permeable material such as glass wool, glass wool, rock wool, stainless steel wool, granular free-flowing ceramic bodies, coarsely classified sand etc. and with a sieve cloth or the like.
  • annular space with parallel walls is formed between the wall of the vertically flowed through chamber and the collecting bell on the side opposite the ventilation duct. This results in a particularly favorable routing of the heating water flow with the smallest chamber dimensions.
  • the device according to the invention consists of the vertically arranged chamber 1, which in its lower region 4 has an inlet connection 2 for connection to the pipeline of the heating circuit, as well as in its upper region an outlet connection 3 for the further pipeline of the heating circuit .
  • the chamber 1 has in its lower part 4 a funnel-shaped extension, which is followed by a transition 5 with an almost unchanged cross-sectional area, which merges in the flow direction into a funnel-shaped, conical taper 6, at the end of which the outlet connection 3 is attached.
  • the catch bell 7, which here has the shape of a funnel 8, which preferably projects into the region of the transition 5 of the chamber 1 with its downwardly open end 9.
  • an outlet channel 11 is attached, which has a ventilation line 12, which is led out laterally obliquely and closely below the outlet nozzle 3 from the chamber 1.
  • the line 12 ends in a vertical end piece 13 with a connecting sleeve with an internal thread 14, into which a gas outlet 15, for example a vent valve of any type, is screwed in a gas-tight manner.
  • the outlet channel 11 advantageously simply carries the collecting bell 7. This is optionally closed in the region of its opening 9 with a membrane-like, gas-permeable gas collecting plate 16 which is made of a porous material for the passage of gas bubbles.
  • the gas trap plate 16 can also be made concave, as shown by the lines 16 'indicated by dashed lines. The concave design of the plate 16 advantageously favors the capture and collection of the gas bubbles 19.
  • FIG. 2 shows a further advantageous embodiment of the device.
  • the liquid has to pass through zones of different pressures and speeds in succession between the concentric gas collecting rings 16 "', 16" “, 16” “' on the underside of the actual gas collecting device 16". This advantageously results in considerable relaxation of air bubbles. The newly formed bubbles are then separated in the subsequent calmed zones.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)
  • Domestic Plumbing Installations (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Physical Water Treatments (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

1. Apparatus for the extraction of gases from water-conducting systems, which is constructed as a chamber (1) through which the flow moves upwardly, having a vertical axis and provided with vertical inlet and outlet connections (3), inside of which chamber an axial counterflow gas extractor member is arranged, whereby the walls of the chamber (1) form distinct flow sections which, emanating from the inlet connection (2), are firstly widened and, after a relatively short transition (5) in the area of the largest cross-section, taper off conically to the outlet connection (3), characterised in that in the broadened area of the chamber (1) a bell trap (7) is arranged with an opening directed against the current, which at the upper end (8) opens out into an air duct leading to the open air, which has a gas control valve (15) outside the chamber (1).

Description

Die Erfindung betrifft eine Vorrichtung zum Abscheiden von Gasen aus wasserführenden Systemen nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a device for separating gases from water-carrying systems according to the preamble of claim 1.

In wasserführenden Systemen, insbesondere in Heizungsanlagen, wird nach einiger Zeit vielfach eine Bildung von Gaspolstern beobachtet, die den Wasserkreis, vor allem in höher gelegenen Radiatoren, ebenso wie auch an Stellen mit verlangsamter Strömung, beeinträchtigen und sogar unterbrechen können. Insbesondere bei Heizungsanlagen, die mehrere Etagen versorgen, wird durch die Gaspolsterung die Zirkulation in der höher gelegenen Etagen gegenüber den tiefer gelegenen verringert, was dann vielfach dazu führt, daß in Unwissenheit der Zusammenhänge höhere Vorlauftemperaturen eingestellt werden, um in den höher gelegenen Etagen eine genügende Heizleistung sicher zu stellen. Dadurch wird die Bildung von Gaspolstern noch weiter begünstigt. Der thermische Wirkungsgrad der Gesamtanlage sinkt weiter.In water-bearing systems, especially in heating systems, the formation of gas cushions is often observed after some time, which can impair and even interrupt the water circuit, especially in higher radiators, as well as in places with slowed flow. Especially in heating systems that supply several floors, the gas cushioning reduces the circulation in the higher floors compared to the lower ones, which in many cases leads to higher flow temperatures being set in ignorance of the interrelationships, in order to ensure sufficient temperatures in the higher floors To ensure heating output. This further promotes the formation of gas cushions. The thermal efficiency of the entire system continues to decrease.

Für das Auftreten von Luft in wasserführenden Systemen gibt es verschiedene Ursachen. Durch das "Auf und Ab" der Temperatur und des äußeren Luftdrucks, sowie durch Wasserverluste, entstehen zeitweise in den Anlagen Unterdrücke, wobei durch Absperr- und Entlüftungsventile, Pumpen etc. Luft eingesogen wird, auch wenn diese vermeintlich dicht sind. Aus diesem Grund treten derartige Störungen für den Laien scheinbar willkürlich auf, ohne daß es in vielen Fällen eine andere Abhilfe gibt, als eine lästige häufige Entlüftung von Hand. Weiterhin wurde schließlich in letzter Zeit beobachtet, daß in Heizungsanlagen mit Kunststoffrohren eine kontinuierliche Diffusion von Luft durch die Wandungen der Kunststoffrohre in das Heizungswasser stattfindet, und damit zur Bildung von Gasblasen führt, die entsprechend kontinuierlich entfernt werden müssen.There are various causes for the occurrence of air in water-bearing systems. Due to the "up and down" of the temperature and the external air pressure, as well as water losses, negative pressures are created in the systems, whereby air is sucked in through shut-off and ventilation valves, pumps etc., even if they are supposed to be tight. For this reason, such disturbances appear to be arbitrary for the layperson, without in many cases there being no other remedy than an annoying frequent ventilation by hand. Furthermore, it has recently been observed recently that in heating systems with plastic pipes there is a continuous diffusion of air through the walls of the plastic pipes into the heating water, and thus leads to the formation of gas bubbles which have to be removed continuously accordingly.

Eine aus der DE-A-22 15 755 bekannte Vorrichtung nach dem Oberbegriff des Patentanspruchs 1 besteht aus einer etwa ringförmigen außeren Kammer, die in ihren nach außen gewölbten Boden- und Deckwänden mit miteinander fluchtenden, die durchströmte Kammer bildenden Zu- und Ablaufstutzen versehen ist, die sich im Innern der Kammer konusförmig erweitern und deren Ränder im Bereich der quer verlaufenden Mittelebene der Kammer einen ringförmigen Druchtrittsspalt begrenzen. In dem konusförmig erweiterten Teil des unteren Zulaufstutzens sind rotationssystemmetrische Gasabscheidungskörper in Form von umgekehrten Kegeln koaxial zu der vertikalen Raumachse im Abstand voneinander angeordnet, so daß aufsteigende Gasblasen durch den Ringspalt in die ringförmige Kammer eintreten können, deren oberer Teil den Gassammelraum bildet. Aus diesem treten die Gase durch ein in der oberen Wandung der Kammer angeordnetes schwimmerbetätigtes Ventil aus. Diese bekannte Vorrichtung weist einen großen Durchmesser auf und ist in ihrer Funktion unzureichend, da auch Gasblasen in den weiterführenden, nach oben austretenden Flüssigkeitsstrom gelangen können, ohne abgeschieden zu werden.A device known from DE-A-22 15 755 according to the preamble of claim 1 consists of an approximately annular outer chamber which is provided in its outwardly curved bottom and top walls with flush with each other, forming the flow-through chamber inlet and outlet , which expand conically in the interior of the chamber and whose edges delimit an annular passage gap in the region of the transverse central plane of the chamber. In the conically widened part of the lower inlet connection, rotational system metric gas separation bodies in the form of inverted cones are arranged coaxially to the vertical spatial axis at a distance from one another, so that rising gas bubbles can enter the annular chamber through the annular gap, the upper part of which forms the gas collecting space. The gases emerge from this through a float-operated valve arranged in the upper wall of the chamber. This known device has a large diameter and is inadequate in its function, since gas bubbles can also get into the further upward flowing liquid stream without being separated.

Aufgabe der Erfindung ist es daher, eine unkomplizierte Vorrichtung zum Abscheiden von Gasen aus wasserführenden Systemen zu schaffen, bei der sämtliche im System umlaufende Luftblasen mit Sicherheit erfaßt und ausgeschieden werden. Darüber hinaus soll die neue Vorrichtung weitgehend unempfindlich gegen Verschmitzung durch in einem Heizungswasserkreislauf unvermeidlich mitgeführte Schmutzteilchen, wie Rostpartikel etc., sein und sich einfach in Gußausführung herstellen lassen.The object of the invention is therefore to create an uncomplicated device for separating gases from water-carrying systems, in which all air bubbles circulating in the system are detected and eliminated with certainty. In addition, the new device is said to be largely insensitive to fouling due to dirt particles, such as rust particles, etc., which are inevitably carried in a heating water circuit, and to be easy to produce in a cast design.

Erfindungsgemäß wird diese Aufgabe bei einer Vorrichtung der gattungsgemäßen Art durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst.According to the invention, this object is achieved in a device of the generic type by the characterizing features of patent claim 1.

Bei der erfindungsgemäßen Vorrichtung werden die im Wasserstrom mitgeführten oder im Gerät ausgeschliedenen Gasbläschen mit Sicherheit gefangen, wobei die Möglichkeit, daß diese an der Fangglocke vorbeistromen, weitgehend ausgeschlossen ist. Der Volumenstrom, der durch den Einlaßstutzen axial und zentral in die Kammer eintritt, ist unmittelbar gegen die Öffnung der Fangglocke gerichtet, die damit ein Höchstmaß an Fangwirkung für die Luftbläschen ausübt. Die Fangwirkung wird noch weiter dadurch unterstützt, daß die Kammer eine Richtfunktion ausübt und darüber hginaus eine Zone der Strömungsberuhigung aufweist, die das Übertreten von Gasbläschen aus dem Flüssigkeitsstrom in die Fangglocke begünstigt.In the device according to the invention, the gas bubbles entrained in the water flow or discharged in the device are caught with certainty, the possibility that they flow past the catch bell is largely excluded. The volume flow, which enters the chamber axially and centrally through the inlet connection, is directed directly against the opening of the collecting bell, which thus exerts a maximum degree of catching effect for the air bubbles. The catch effect is further supported by the fact that the chamber performs a directional function and, moreover, has a zone of flow calming which favors the passage of gas bubbles from the liquid flow into the catch bell.

Aus der DE-C-2346 286 ist eine Vorrichtung zur Gasabscheidung bekannt, die aus einer Kammer mit zueinander parallelen Seitenwänden besteht und in Draufsicht birnenförmig ist. Die Kammer ist in ihrem unteren breiteren Teil mit einem Zulaufstutzen und rechwinkelig zu diesem im mittleren Bereich einer Seitenwand mit einem Abflußrohr versehen, so daß die Strömung in der Kammer um 90 Grad umgelenkt wird. Die Kammer ist in ihrem oberen sich verjüngenden Teil mit einem Gewindestutzen für einen Entlüfter versehen. In der Kammer sind Strömmungsteiler und Abweiser vorgesehen, so daß sich radial zu dem Ablaufrohr drehende Wirbel ausbilden, aus denen Gasanteile austreten und sich in dem oberen sich verjüngenden Teil der Kammer sammeln. Der obere Teil der Kammer ist in Draufsicht zwar konusförmig erweitert ausgebildet, er bildet aber keine in eine durchströmte Kammer eingesetzte Fangglocke im Sinne der Erfindung.From DE-C-2346 286 a device for gas separation is known, which consists of a chamber with mutually parallel side walls and is pear-shaped in plan view. The chamber is provided in its lower, wider part with an inlet connection and at right angles to this in the central region of a side wall with a drain pipe, so that the flow in the chamber is deflected by 90 degrees. The chamber is provided in its upper tapered part with a threaded connector for a vent. Flow dividers and deflectors are provided in the chamber, so that vortices rotating radially to the drain pipe are formed, from which gas fractions emerge and collect in the upper, tapering part of the chamber. The upper part of the chamber is of flared configuration in plan view, but it does not form a catch bell inserted into a flow-through chamber in the sense of the invention.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß der Strömungsquerschnitt für die Flüssigkeit im unteren Bereich der Kammer zumindest teilweise kleiner als der Querschnitt des Zulaufstutzens ist. Hierdurch ergibt sich vorteilhaft, daß auch eine Entspannungsluftblasenbildung auftritt. So kann der Abscheidungswirkungsgrad weiter verbessert werden.In a further embodiment of the invention it is provided that the flow cross section for the liquid in the lower region of the chamber is at least partially smaller than the cross section of the inlet connection. This advantageously results in the formation of expansion air bubbles. The deposition efficiency can be further improved in this way.

Eine weitere Ausgestaltung der Erfindung sieht vor, daß die Kammerr ein von zumindest teil-rotationssymmetrischen Wänden gebildeter Körper mit etwa in der Symmetrieachse angeordneten Zu- und Ablaufstutzen ist. Der Vorteil dieser Ausgestaltung liegt darin, daß auf diese Weise ein widerstandsarmes Strömungssystem geschaffen wird, das die Zirkulation des Wassers nicht erheblich behindert oder nachteilig beeinflußt. Weiterhin ist vorteilhaft, daß so eine kostengünstige Herstellung der Kammer möglich ist.Another embodiment of the invention provides before that the chamber is a body formed by at least partially rotationally symmetrical walls with inlet and outlet connections arranged approximately in the axis of symmetry. The advantage of this embodiment is that a low-resistance flow system is created in this way, which does not significantly impede or adversely affect the circulation of the water. It is also advantageous that an inexpensive manufacture of the chamber is possible.

Weiter ist vorgesehen, daß der Entlüftungskanal schräg nach oben aus der Kammer herausgeführt ist und an seinem unteren Ende die Fangglocke trägt. Hierdurch wird eine sehr unkomplizierte Ausgestaltung erreicht, die die Herstellung des Gerätes erleichtert und damit die Herstellungskosten sehr günstig beeinflußt.It is further provided that the ventilation duct is led out obliquely upwards out of the chamber and carries the catch bell at its lower end. In this way, a very uncomplicated configuration is achieved, which facilitates the manufacture of the device and thus influences the manufacturing costs very favorably.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Fangglocke eine als Gasabscheidungskörper ausgebildete Platte aufweist, die vorzugsweise eben und horizontal ausgebildet ist. Hierdurch kann die Fangwirkung der Fangglocke noch weiter gesteigert werden. Dabei ist weiterhin vorgesehen, daß die Platte ein poröses Metallteil, etwa engmaschiges Siebgewebe, Metalltuch, Sintermetall, Metallwolle o.ä. ist. Derartige Metallteile und Materialien, auch aus Messing, sind handelsüblich und können ohne Schwierigkeit verarbeitet werden. Gegebenenfalls kann die Platte ober auch ein poröses Kunststoffteil sein, was den Vorteil hat, daß solches Material gegenüber Korrosion völlig immun ist.In a further embodiment of the invention it is provided that the catch bell has a plate designed as a gas separation body, which is preferably flat and horizontal. As a result, the catch effect of the catch bell can be increased even further. It is also provided that the plate is a porous metal part, such as a fine-mesh screen fabric, metal cloth, sintered metal, metal wool or the like. is. Such metal parts and materials, including brass, are commercially available and can be processed without difficulty. If necessary, the plate can also be a porous plastic part, which has the advantage that such material is completely immune to corrosion.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Fangglocke wenigstens teilweise mit gasdurchlässigem Material wie Glaswolle, Glaswatte, Steinwolle, Edelstahlwolle, körnigen rieselfähigen Keramikkörpern, grobklassiertem Sand etc. gefüllt und mit einem Siebgewebe o.ä. verschlossen ist. Eine derartige Füllung der Fangglocke mit porösem Material ist einerseits gasdurchlässig und wirkt andererseits als Filter, so daß jegliche Verschmutzung eines der Vorrichtung nachgeschalteten Ventiles mit Sicherheit verhindert wird.In a further embodiment of the invention it is provided that the catch bell is at least partially filled with gas-permeable material such as glass wool, glass wool, rock wool, stainless steel wool, granular free-flowing ceramic bodies, coarsely classified sand etc. and with a sieve cloth or the like. is closed. Such a filling of the collecting bell with porous material is on the one hand gas-permeable and on the other hand acts as a filter, so that any contamination of a valve downstream of the device is prevented with certainty.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß zwischen der Wandung der vertikal durchströmten Kammer und der Fangglocke auf der dem Entlüftungskanal gegenüberliegenden Seite ein Ringraum mit parallelen Wänden ausgebildet ist. So ergibt sich eine besonders günstige Führung des Heizungswasserstromes bei kleinsten Kammerabmessungen.In a further embodiment of the invention it is provided that an annular space with parallel walls is formed between the wall of the vertically flowed through chamber and the collecting bell on the side opposite the ventilation duct. This results in a particularly favorable routing of the heating water flow with the smallest chamber dimensions.

Die Erfindung wird in den Zeichnungen in bevorzugten Ausführungsformen gezeigt, wobei aus den Zeichnungen weitere vorteilhafte Einzelheiten der Erfindung entnehmbar sind.The invention is shown in the drawings in preferred embodiments, further advantageous details of the invention being apparent from the drawings.

Die Zeichnungen zeigen im einzelnen in:

  • Fig. 1 eine Abscheidevorrichtung in mehrteiliger Ausführung mit frei umströmter Fangglocke und in
  • Fig. 2 eine Abscheidevorrichtung in mehrteiliger Ausführung mit verengten Durchströmungsquerschnitten im unteren Teil der Kammer.
The drawings show in detail:
  • Fig. 1 is a separation device in a multi-part design with freely flowing catch bell and in
  • Fig. 2 shows a separation device in a multi-part design with narrow flow cross sections in the lower part of the chamber.

Wie die Fig. 1 zeigt, besteht das erfindungsgemäße Gerät aus der vertikal angeordneten Kammer 1, die in ihrem unteren Bereich 4 einen Eintrittsstutzen 2 zum Anschluß an die Rohrleitung des Heizkreislaufes, ebenso wie in ihrem oberen Bereich einen Austrittsstutzen 3 zur weiterführenden Rohrleitung des Heizkreislaufes besitzt. Die Kammer 1 weist in ihrem unteren Teil 4 eine trichterförmige Erweiterung auf, an die sich ein Übergang 5 mit nahezu unveränderter Querschnittsfläche anschließt, der in Strömungsrichtung in eine trichterförmige, konische Verjüngung 6 übergeht, an deren Ende der Austrittsstutzen 3 angesetzt ist. In dem so gebildeten Raum der Kammer 1 befindet sich die Fangglocke 7, die hier die Form eines Trichters 8 aufweist, der mit seinem nach unten offenen Ende 9 vorzugsweise in den Bereich des Übergangs 5 der Kammer 1 hineinragt. Am oberen Ende 10 der Fangglocke 7 ist ein Auslaßkanal 11 angesetzt, der eine Entlüftungsleitung 12 aufweist, die seitlich schräg und dicht unterhalb des Austrittsstutzens 3 aus der Kammer 1 herausgeführt ist. Außerhalb der Kammer 1 endet die Leitung 12 in einem vertikalen Endstück 13 mit einer Verbindungsmuffe mit Innengewinde 14, in die ein Gasaustritt 15, etwa ein Entlüftungsventil beliebiger Bauart gasdicht eingeschraubt ist. Der Auslaßkanal 11 trägt vorteilhaft einfach die Fangglocke 7. Diese ist im Bereich ihrer Öffnung 9 gegebenenfalls mit einer membranartigen, gasdurchlässigen Gas-Fang-Platte 16 verschlossen, die zum Durchtritt von Gasbläschen aus einem porösem Material hergestellt ist. Gemäß einem Vorschlag der Erfindung kann die Gas-Fang-Platte 16 auch konkav ausgeführt sein, wie dies durch die mit gestrichelten Linien angedeutete Linienführung 16', dargestellt ist. Die konkave Ausbildung der Platte 16 begünstigt vorteilhaft das Einfangen und Sammeln der Gasbläschen 19 weiter.As shown in Fig. 1, the device according to the invention consists of the vertically arranged chamber 1, which in its lower region 4 has an inlet connection 2 for connection to the pipeline of the heating circuit, as well as in its upper region an outlet connection 3 for the further pipeline of the heating circuit . The chamber 1 has in its lower part 4 a funnel-shaped extension, which is followed by a transition 5 with an almost unchanged cross-sectional area, which merges in the flow direction into a funnel-shaped, conical taper 6, at the end of which the outlet connection 3 is attached. In the space of the chamber 1 thus formed there is the catch bell 7, which here has the shape of a funnel 8, which preferably projects into the region of the transition 5 of the chamber 1 with its downwardly open end 9. At the upper end 10 of the collecting bell 7, an outlet channel 11 is attached, which has a ventilation line 12, which is led out laterally obliquely and closely below the outlet nozzle 3 from the chamber 1. Outside the chamber 1, the line 12 ends in a vertical end piece 13 with a connecting sleeve with an internal thread 14, into which a gas outlet 15, for example a vent valve of any type, is screwed in a gas-tight manner. The outlet channel 11 advantageously simply carries the collecting bell 7. This is optionally closed in the region of its opening 9 with a membrane-like, gas-permeable gas collecting plate 16 which is made of a porous material for the passage of gas bubbles. According to a proposal of the invention, the gas trap plate 16 can also be made concave, as shown by the lines 16 'indicated by dashed lines. The concave design of the plate 16 advantageously favors the capture and collection of the gas bubbles 19.

In Fig. 2 ist eine weitere vorteilhafte Ausgestaltung des Geräts dargestellt. Hier muß die Flüssigkeit nacheinander Zonen unterschiedlicher Drücke und Geschwindigkeiten zwischen den konzentrischen Gasfangringen 16"', 16"", 16""' an der Unterseite der eigentlichen Gasfangvorrichtung 16" durchlaufen. So kommt es vorteilhaft auch zu einer erheblichen Entspannungs-Luft-blasenbildung. In den nachfolgenden beruhigten Zonen werden die neu gebildeten Blasen dann abgeschieden.2 shows a further advantageous embodiment of the device. Here the liquid has to pass through zones of different pressures and speeds in succession between the concentric gas collecting rings 16 "', 16" ", 16" "' on the underside of the actual gas collecting device 16". This advantageously results in considerable relaxation of air bubbles. The newly formed bubbles are then separated in the subsequent calmed zones.

Claims (9)

1. Device for separating gases out of water- carrying systems which is constructed as a chamber (1), through which the flow is from the bottom upwards, which has a vertical spatial axis and is provided with vertical feed (2) and discharge connectors (3) and in the inside of which is located a gas separation body, against which the flow is axial and which is provided with a component directed against the flow, a divided-off gas collection space being provided which ends at its upper end in a venting channel (11, 12) which leads into the open and has a gas outlet valve (15) outside the chamber (1), and in which the walls of the chamber (1) form different flow cross-sections which, starting from the feed connector (2) are initially widened and after a relatively short transition (5) in the region of the maximum cross-section run towards the discharge connector (3) into a somewhat funnel-shaped taper (6) again, characterised in that the gas separation body is a trapping bell (7) located in the upper region of the chamber (1) and containing the gas collection space, with the opening directed against the flow, and in that the cross-section of the opening of the trapping bell (7) is several times the cross-section of the feed connector (2).
2. Device according to Claim 1, characterised in that the flow cross-section of the liquid in the lower region of the chamber (1) is at least in part smaller than the cross-section of the feed connector (2).
3. Device according to Claim 1 or 2, characterised in that the chamber (1) is a body formed from at least partly rotationally symmetric walls with the feed (2) and discharge connectors (3) located approximately in the axis of symmetry.
4. Device according to Claim 1, 2 or 3, characterised in that the venting channel (11, 12) is passed diagonally upwards out of the chamber (1) and carries the trapping bell (7) on its lower end.
5. Device according to Claims 1, 2, 3 or 4, characterised in that the trapping bell (7) has a plate (16) constructed as a gas separation body, which is preferably located at the top and horizontally.
6. Device according to Claim 5, characterised in that the plate (16) is a porous metal component, for example a close-mesh sieve fabric, metal cloth, sinter metal, metal wool or the like.
7. Device according to Claim 5, characterised in that the plate (16) is a porous component of plastic.
8. Device according to one of the preceding claims, characterised in that the trapping bell (7) is filled at least in part with material which is permeable to gases, such as glass wool, glass wadding, rock wool, stainless steel wool, granular free-flowing ceramic bodies, sand of coarse classification etc., and is closed with a sieve fabric or the like.
9. Device according to Claim 1, characterised in that an annular space with parallel walls is constructed between the wall of the chamber (1), through which the flow is vertical, and the trapping bell (7) on the side opposite the venting channel (11, 12).
EP82106194A 1981-07-13 1982-07-10 Device for the separation of gases in water-carrying systems Expired - Lifetime EP0070483B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82106194T ATE16312T1 (en) 1981-07-13 1982-07-10 DEVICE FOR SEPARATING GASES FROM WATER-CONTAINING SYSTEMS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3127620 1981-07-13
DE19813127620 DE3127620A1 (en) 1981-07-13 1981-07-13 DEVICE FOR SEPARATING GAS FROM WATER-CONDUCTING SYSTEMS, IN PARTICULAR HEATING SYSTEMS

Publications (3)

Publication Number Publication Date
EP0070483A1 EP0070483A1 (en) 1983-01-26
EP0070483B1 EP0070483B1 (en) 1985-10-30
EP0070483B2 true EP0070483B2 (en) 1990-12-05

Family

ID=6136787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106194A Expired - Lifetime EP0070483B2 (en) 1981-07-13 1982-07-10 Device for the separation of gases in water-carrying systems

Country Status (5)

Country Link
EP (1) EP0070483B2 (en)
AT (1) ATE16312T1 (en)
DE (2) DE3127620A1 (en)
DK (1) DK312282A (en)
FI (1) FI822498L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909518A1 (en) * 1989-03-22 1990-09-27 Biotechnolog Forschung Gmbh DEVICE FOR REMOVING GAS BUBBLES, IN PARTICULAR AIR BUBBLES, FROM A FLOW OF FLUID
DE102018101087A1 (en) * 2018-01-18 2019-07-18 Vaillant Gmbh gas separator
DE102020107579A1 (en) * 2020-03-19 2021-09-23 Vaillant Gmbh Separation phase

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE288158C (en) * 1913-11-11 1915-10-21
FR802319A (en) * 1936-01-28 1936-09-02 Improvements made to degassers and degassing pumps for all liquids
FR2086767A5 (en) * 1970-04-08 1971-12-31 Peugeot & Renault
FR2133066A5 (en) * 1971-04-07 1972-11-24 Schlumberger Compteurs
US3961918A (en) * 1972-03-20 1976-06-08 Johnson Thomas B Method and apparatus for degassing liquids
FR2290234A1 (en) * 1974-11-08 1976-06-04 Rhone Poulenc Ind APPARATUS FOR SEPARATION BY DECANTATION
NL187518C (en) * 1978-05-02 1991-11-01 Wetering Gemeenschappelijk Bez DEVICE FOR SEPARATING AIR FROM A FLUID CIRCUIT.

Also Published As

Publication number Publication date
EP0070483A1 (en) 1983-01-26
DK312282A (en) 1983-01-14
DE3127620A1 (en) 1983-01-27
DE3267156D1 (en) 1985-12-05
FI822498L (en) 1983-01-14
ATE16312T1 (en) 1985-11-15
EP0070483B1 (en) 1985-10-30
FI822498A0 (en) 1982-07-13

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