EP1840283B1 - Closing device of a low-pressure drainage system - Google Patents
Closing device of a low-pressure drainage system Download PDFInfo
- Publication number
- EP1840283B1 EP1840283B1 EP07104828.4A EP07104828A EP1840283B1 EP 1840283 B1 EP1840283 B1 EP 1840283B1 EP 07104828 A EP07104828 A EP 07104828A EP 1840283 B1 EP1840283 B1 EP 1840283B1
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- EP
- European Patent Office
- Prior art keywords
- section
- pipe
- closing device
- connecting pipe
- tube
- Prior art date
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- 238000007789 sealing Methods 0.000 claims description 18
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 5
- 239000002351 wastewater Substances 0.000 description 18
- 239000010865 sewage Substances 0.000 description 16
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 210000003323 beak Anatomy 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
Definitions
- Such a closure device and a vacuum sewage system are from the WO 01/25632 A2 known.
- Vacuum or vacuum sewage systems or systems for drainage comprising a vacuum or vacuum line, to which on the one hand at least one vacuum or vacuum source and on the other hand can be connected via suction valves to waste water collection points such as collecting shafts for the batchwise suction of waste water and air.
- waste water collection points such as collecting shafts for the batchwise suction of waste water and air.
- Vacuum sewage systems are mainly used as pure sewage systems.
- the wastewater usually flows freely from buildings into wastewater collection rooms and shafts.
- a suction valve arranged between the collecting space and the vacuum line is opened for a period of time via a trigger and a control.
- the connection between the collecting space and the vacuum line can be referred to as a connection line.
- the wastewater charge and a certain amount of air are sucked into the vacuum line through the opened suction valve.
- the control arrangement via which the suction or shut-off valve is in turn opened or closed, it is necessary for the former to be acted upon by the pressure prevailing in the vacuum line.
- the control arrangement and shut-off valve are usually arranged directly in the area of the connection between the collecting container and the vacuum line, and preferably in a closable container embedded in the ground, the pressure is drawn from the connecting line, which runs between the shut-off valve and the vacuum line.
- the connecting line has an intermediate piece, in particular with a Y geometry, which is arranged within the protective container.
- the branch of the intermediate piece which opens into the sections of the connecting line to be connected, is closed by a closing device, preferably in the form of a stopper, in which opens a connection that leads to the control arrangement.
- a closing device preferably in the form of a stopper, in which opens a connection that leads to the control arrangement.
- the sealing plug can be closed on the line side via a check valve, preferably in the form of a membrane.
- the present invention is based on the object of developing the arrangement of the type mentioned at the outset in such a way that, regardless of the prevailing temperatures, water cannot penetrate into the region of the closure device which is shut off by the non-return valve and thus into the elements connected to it, such as the control arrangement and shut-off valve can take place.
- the closure device has a tubular or tubular section which extends in the connecting line and which has the check valve at the end.
- the closure device is extended to such an extent that the check valve runs in areas that are frost-proof.
- the tubular or tubular section projects into the connecting line or an intermediate piece connecting a section of the connecting line to such an extent that it is flushed with wastewater to be extracted. Because this is usually is heated or always has temperatures that are above freezing, it is additionally ensured that the check valve cannot freeze.
- tubular or tubular section this is an element through which air can flow, which on the one hand is tightly connected to the closure device and on the other hand has a check valve on the end which ensures that liquid is not can flow to the control arrangement or the suction valve via the closure device.
- the shape of the tubular or tubular section can be any. In particular, however, it is provided that the section is composed of one or more conical sections, which ensures that condensate occurring in the interior can flow in the direction of the check valve.
- the tubular or tubular section can have an overall conical shape or can consist of conical sections of different cone angles and lengths.
- the check valve is in particular a beak check valve, which preferably consists of elastomer material.
- a flexible element is provided which, in the sealing or closed position, has the geometry of an isosceles triangle in a first side view and the geometry of a square in a side view offset by 90 °.
- the beak check valve comprises a hollow cylindrical base section, from which, when the check valve is in the closed position, two diametrically opposed hollow cylinder sections with a triangular geometry in side view of the check valve each have a tip, which are connected by at least externally flat sections which are connected in the region of a straight line connecting the tips of the hollow cylinder sections are separated.
- the edges running along the straight line are designed in particular as sealing lips.
- the closure device itself is preferably designed as a hollow plug and has an average U-geometry with bottom and peripheral walls, the outer surface of which spans a cone.
- the branch which can be closed via the closure device, is preferably a pipe section of an intermediate piece of the connecting line having a Y geometry, the branch extending in an extension of a section of the connecting line which is sealed off from the intermediate piece by a seal, such as a cone sealing ring.
- a seal such as a cone sealing ring.
- the vacuum sewage system of the type mentioned at the outset is characterized in that the closure device has a tubular or tubular section which has the non-return valve at the end, which extends into the connecting line.
- the check valve is thus located in the frost-proof area of the vacuum sewage system.
- the branch starts from an intermediate piece of the connecting line that has a Y geometry. Intermediate piece and adjacent section of the connection or waste water line are connected by a seal such as. B. sealed a cone sealing ring.
- the branch which can be shut off by the closure device, such as a stopper, extends in the extension of the section of the connecting line, the tubular or tubular section having the check valve at the end preferably running behind the seal.
- the tubular or tubular section having the check valve is preferably connected to the closure device.
- An integral training is also possible.
- the section should be flexible to an extent that there is a certain degree of mobility without being compressed in the longitudinal direction, as a result of which the sewage pipe or the intermediate piece could possibly be blocked.
- the cross section of the tubular or tubular section should be matched to that of the waste water or connection line or the intermediate piece in such a way that an undesirable reduction in cross section, which would lead to increased flow resistance, does not occur.
- Vacuum or vacuum sewage or drainage systems or systems are mainly used as pure dirt sewers.
- a section of a corresponding vacuum sewage system can be seen purely in principle, which comprises a sawtooth-shaped vacuum line 13, ie having high points 10 and low points 12, which can be connected to a large number of house connections.
- the vacuum line 13 is composed of sections of different height profiles in order to open into a main collecting tank, not shown, from which the waste water is fed to a sewage treatment plant. From the vacuum line 13 can also start from high points 10 inspection tubes 22, which can be closed on the surface by means of plugs 24.
- the plugs 24 can be arranged in boxes which can be closed by means of a lid or a cap 26.
- a house connection 50 which comprises a shaft body 52, which may be accessible.
- a collecting tank 14 to which waste water usually flows in free fall from one or more houses.
- the waste water is drawn into the vacuum line 13 via a line 16 and a connecting line 18 when a shut-off or suction valve 56 in the house connection shaft 50 is opened.
- the shut-off valve 56 is switched over via a control arrangement 54, as exemplified in FIG DE-A-43 36 020 is described.
- the connecting line 18 opening into the vacuum line 13 is connected to the shut-off or suction valve 56 via an intermediate piece 57 having a Y geometry, specifically with its outlet on the downstream side.
- the intermediate piece 57 has a section 58 to be referred to as a branch, which extends in the extension of the section of the connecting line 18 opening into the intermediate piece 57.
- the branch 58 is closed by a sealing plug 60, from which a line 62 leads to the control arrangement 54 in order to pressurize it to switch over and thus actuate the shut-off valve 56.
- a line 64 extends from the control arrangement 54 and opens into the shut-off valve 56.
- the function and structure of the control arrangement 54 and the shut-off valve 56 are sufficiently known.
- An example is the WO-A-01 25632 referenced, the content of which is expressly referred to.
- the connection to the line 62 passing through the sealing plug 60 can be shut off via a check valve 100 which, according to the invention, is positioned such that even at low temperatures in the Freezing is not possible in the area of the house connection shaft 50.
- the check valve 100 is positioned frost-proof.
- the sealing plug 60 is connected to a tubular or tubular element 102, which can also be an integral part of the sealing plug 60.
- the tubular or tubular element 102 extends into the connecting line 18, that is to say in the exemplary embodiment up to behind a seal such as a conical sealing ring 104, via which the intermediate piece 57 is sealed off from the connecting line 18.
- the check valve 100 starts from the end of the tubular or tubular element 102 and is therefore located behind the seal 104.
- the tubular or tubular element 102 is composed of an upper section 103 running on the sealing plug side and a lower section 105 running on the check valve side. Both sections 103, 105 have a conical shape, the conical angle of the upper section 103 being greater than that of the lower section 105. Furthermore, the length of the lower section 105 is preferably 2 to 6 times longer than that of the upper section 103 running on the plug side.
- the check valve 100 can be formed integrally with the tubular or tubular element 102.
- the conical shape or conical sections 103, 105 of the tubular or tubular element 102 results in the advantage that condensate formed can flow along the inner surface of the tubular or tubular element 102 in the direction of the check valve 100, so that when the valve 100 is opened suction takes place. This ensures that liquid cannot get into the control arrangement 54.
- the check valve 100 can in particular be a beak check valve which comprises a hollow cylindrical base section 106 which is tightly connected to the end of the tubular or tubular element 102.
- the check valve 100 consists in particular of elastomer material.
- the check valve 100 In the longitudinal direction and in the sealing position, the check valve 100 consists in a first longitudinal section from two legs of an isosceles triangle. A U-shaped geometry is provided in a second longitudinal section that is offset by 90 ° to the first longitudinal section.
- the check valve 100 in the closed position has the geometry of an isosceles triangle in a first side view and the geometry of a square in a second side view which is offset by 90 ° to the first side view.
- the beak-shaped geometry of the check valve 100 ensures that if water should flow back through the connecting line 18 in the opposite direction of flow, the check valve 100 is tightly sealed, so that the sealing plug 60 and the line 62 are connected by an L-shaped connecting piece 63 goes out, water can not get into the control arrangement 54.
- check valve 100 does not necessarily have to be designed as a beak check valve.
- Other suitable non-return valves are also possible, the non-return valve 100 being an integral part of the tubular or tubular element 102 and with it, for. B. can be produced by spraying as a unit.
- the sealing plug 60 which is designed as a hollow plug, has a bottom wall 108 receiving the connecting piece 63, from which a peripheral wall 110, which extends into the branch 58 and has a hollow cylinder geometry, extends, the outer surface 112 of which spans a cone.
- circumferential and spaced seals 114, 116 are provided in order to be able to insert the sealing plug 60 in pipes of different diameters.
- the lower seal 116 can merge directly into the tubular or tubular section 102, that is to say be formed integrally therewith.
- the region 118 of the section 102 which extends along the closure plug 60 can be connected to the closure plug 60 in the manner of a snap closure, as a result of which secure fastening is made possible.
Description
Die Erfindung bezieht sich auf eine Anordnung für eine eine Steueranordnung für ein Absaug- bzw. Absperrventil aufweisende Unterdruckabwasseranlage, mit einer von Abwasser durchströmter Anschlussleitung, einer mit der Anschlussleitung verbundenen Abzweigung und einer in diese eingesetzten Verschlusseinrichtung, über die eine Verbindung zwischen der Anschlussleitung und der Steueranordnung herstellbar ist. Ferner nimmt die Erfindung Bezug auf eine Unterdruckabwasseranlage umfassend
- eine Unterdruckquelle,
- einen Hauptsammelbehälter,
- eine Unterdruckleitung,
- eine Abwassersammelstelle,
- eine Anschlussleitung,
- ein Absaug- bzw. Absperrventil,
- eine Steueranordnung,
- eine Abzweigung,
- eine Verschlusseinrichtung,
- ein Rückschlagventil,
- a vacuum source,
- a main collection container,
- a vacuum line,
- a waste water collection point,
- a connecting line,
- a suction or shut-off valve,
- a control arrangement,
- a turn,
- a closure device,
- a check valve,
Eine derartige Verschlusseinrichtung sowie eine Unterdruckabwasseranlage sind aus der
Unterdruck- oder Vakuumabwasseranlagen oder -systeme für die Entwässerung umfassend eine Vakuum- oder Unterdruckleitung, an die einerseits zumindest eine Vakuum- oder Unterdruckquelle und andererseits über Absaugventile Abwassersammelstellen wie Sammelschächte zum schubweisen Ansaugen von Abwasser und Luft anschließbar sind, werden z. B. in Bereichen eingesetzt, in denen eine geringe Siedlungsdichte vorherrscht, kein ausreichendes Gefälle für eine konventionelle Freigefällekanalisation zur Verfügung steht, nur zeitweilig Abwasser anfällt, wie dies in Feriensiedlungen der Fall ist, oder wo Wasserschutzgebiete zu durchqueren sind. Auch hat sich ein Einsatz dann bewährt, wenn die Untergrundverhältnisse ungünstig sind, also z. B. in Gebieten hohen Grundwasserstandes.Vacuum or vacuum sewage systems or systems for drainage comprising a vacuum or vacuum line, to which on the one hand at least one vacuum or vacuum source and on the other hand can be connected via suction valves to waste water collection points such as collecting shafts for the batchwise suction of waste water and air. B. used in areas where there is a low settlement density, there is not a sufficient gradient for a conventional free fall sewerage system, only temporary waste water, as is the case in holiday settlements, or where water protection areas have to be crossed. Use has also proven itself when the subsurface conditions are unfavorable, e.g. B. in areas with high groundwater levels.
Unterdruck-Abwasseranlagen werden vorwiegend als reine Schmutzwasserkanalisation eingesetzt. In einer Unterdruck-Abwasseranlage fließt üblicherweise das Abwasser im freien Gefälle von Gebäuden in Abwassersammeiräume wie -schächte. Sobald sich in einem Sammelraum eine vorher festgelegte Abwassercharge angesammelt hat, wird über einen Auslöser und über eine Steuerung ein zwischen dem Sammelraum und der Unterdruckleitung angeordnetes Absaugventil für eine Zeitspanne geöffnet. Die Verbindung zwischen dem Sammelraum und der Unterdruckleitung kann als Anschlussleitung bezeichnet werden. Die Abwassercharge und eine bestimmte Menge an Luft werden durch das geöffnete Absaugventil in die Unterdruckleitung eingesaugt.Vacuum sewage systems are mainly used as pure sewage systems. In a vacuum sewage system, the wastewater usually flows freely from buildings into wastewater collection rooms and shafts. As soon as a predetermined waste water batch has accumulated in a collecting space, a suction valve arranged between the collecting space and the vacuum line is opened for a period of time via a trigger and a control. The connection between the collecting space and the vacuum line can be referred to as a connection line. The wastewater charge and a certain amount of air are sucked into the vacuum line through the opened suction valve.
Zum Betätigen der Steueranordnung, über die wiederum das Absaug- oder Absperrventil geöffnet bzw. geschlossen wird, ist es erforderlich, dass ersteres mit dem in der Unterdruckleitung herrschenden Druck beaufschlagt wird. Da Steueranordnung und Absperrventil üblicherweise unmittelbar im Bereich der Verbindung zwischen dem Sammelbehälter und der Unterdruckleitung angeordnet sind, und zwar vorzugsweise in einem im Erdreich eingelassenen verschließbaren Behälter, wird der Druck aus der Anschlussleitung entnommen, der zwischen dem Absperrventil und der Unterdruckleitung verläuft. Hierzu weist die Anschlussleitung ein insbesondere eine Y-Geometrie aufweisendes Zwischenstück auf, das innerhalb des Schutzbehälters angeordnet ist. Der Abzweig des Zwischenstücks, der in die zu verbindenden Abschnitte der Anschlussleitung mündet, wird von einer Verschlusseinrichtung vorzugsweise in Form eines Stopfens verschlossen, in dem ein Anschluss mündet, der zu der Steueranordnung führt. Damit über den Anschluss jedoch keine Flüssigkeit in die Steueranordnung strömen kann, ist der Verschlussstopfen leitungsseitig über ein Rückschlagventil, vorzugsweise in Form einer Membran verschließbar.To actuate the control arrangement, via which the suction or shut-off valve is in turn opened or closed, it is necessary for the former to be acted upon by the pressure prevailing in the vacuum line. Since the control arrangement and shut-off valve are usually arranged directly in the area of the connection between the collecting container and the vacuum line, and preferably in a closable container embedded in the ground, the pressure is drawn from the connecting line, which runs between the shut-off valve and the vacuum line. For this purpose, the connecting line has an intermediate piece, in particular with a Y geometry, which is arranged within the protective container. The branch of the intermediate piece, which opens into the sections of the connecting line to be connected, is closed by a closing device, preferably in the form of a stopper, in which opens a connection that leads to the control arrangement. However, so that no liquid can flow into the control arrangement via the connection, the sealing plug can be closed on the line side via a check valve, preferably in the form of a membrane.
Da sich das Y-Zwischenstück und damit der Stopfen in dem Schutzbehälter und damit im unmittelbaren Bereich der Erdoberfläche befindet, besteht in kalten Jahreszeiten die Gefahr, dass ein Einfrieren mit der Folge gegeben ist, dass das Rückschlagventil nicht ordnungsgemäß arbeitet. Somit kann Flüssigkeit in die Steueranordnung gedrückt werden. Dies wiederum führt dazu, dass das Absperrventil nicht angesteuert wird und in diesem Bereich die Unterdruckabwasseranlage nicht ordnungsgemäß arbeiten kann.Since the Y-adapter and thus the stopper are located in the protective container and thus in the immediate area of the earth's surface, there is a risk in cold seasons that there is freezing, with the result that the check valve does not work properly. Liquid can thus be pressed into the control arrangement. This in turn means that the shut-off valve is not activated and the vacuum sewage system cannot work properly in this area.
Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, die Anordnung der eingangs genannten Art derart weiterzubilden, dass unabhängig von herrschenden Temperaturen ausgeschlossen ist, dass ein Eindringen von Wasser in den von dem Rückschlagventil abgesperrten Bereich der Verschlusseinrichtung und somit in die mit dieser verbundenen Elemente wie Steueranordnung und Absperrventil erfolgen kann.The present invention is based on the object of developing the arrangement of the type mentioned at the outset in such a way that, regardless of the prevailing temperatures, water cannot penetrate into the region of the closure device which is shut off by the non-return valve and thus into the elements connected to it, such as the control arrangement and shut-off valve can take place.
Zur Lösung der Aufgabe ist vorgesehen, dass die Verschlusseinrichtung einen sich in der Anschlussleitung erstreckenden rohr- oder schlauchförmigen Abschnitt aufweist, der endseitig das Rückschlagventil aufweist.To achieve the object, it is provided that the closure device has a tubular or tubular section which extends in the connecting line and which has the check valve at the end.
Erfindungsgemäß erfolgt eine Verlängerung der Verschlusseinrichtung in einem Umfang, dass das Rückschlagventil in Bereichen verläuft, die frostsicher sind. Dabei ist insbesondere vorgesehen, dass der rohr- oder schlauchförmige Abschnitt in einem Umfang in die Anschlussleitung oder ein Abschnitte der Anschlussleitung verbindendes Zwischenstück hineinragt, dass ein Umspülen mit abzusaugendem Abwasser erfolgt. Da dieses üblicherweise erwärmt ist bzw. stets Temperaturen aufweist, die über dem Gefrierpunkt liegen, ist zusätzlich sichergestellt, dass ein Einfrieren des Rückschlagventils ausgeschlossen ist.According to the invention, the closure device is extended to such an extent that the check valve runs in areas that are frost-proof. In particular, it is provided that the tubular or tubular section projects into the connecting line or an intermediate piece connecting a section of the connecting line to such an extent that it is flushed with wastewater to be extracted. Because this is usually is heated or always has temperatures that are above freezing, it is additionally ensured that the check valve cannot freeze.
Ganz allgemein ist zu dem Begriff "rohr- oder schlauchförmiger Abschnitt" anzumerken, dass es sich hierbei um ein von Luft durchströmbares Element handelt, das zum einen dicht mit der Verschlusseinrichtung verbunden ist und zum anderen endseitig ein Rückschlagventil aufweist, das sicherstellt, dass Flüssigkeit nicht über die Verschlusseinrichtung zu der Steueranordnung bzw. dem Absaugventil strömen kann.In general, it should be noted in relation to the term “tubular or tubular section” that this is an element through which air can flow, which on the one hand is tightly connected to the closure device and on the other hand has a check valve on the end which ensures that liquid is not can flow to the control arrangement or the suction valve via the closure device.
Die Form des rohr- oder schlauchförmigen Abschnitts kann beliebig sein. Insbesondere ist jedoch vorgesehen, dass sich der Abschnitt aus einem oder mehreren konusförmigen Abschnitten zusammensetzt, wodurch sichergestellt ist, dass im Inneren auftretendes Kondensat in Richtung des Rückschlagventils fließen kann. Der rohr- oder schlauchförmige Abschnitt kann dabei insgesamt eine Konusform aufweisen oder aber aus konusförmigen Abschnitten unterschiedlicher Konuswinkel und -längen bestehen.The shape of the tubular or tubular section can be any. In particular, however, it is provided that the section is composed of one or more conical sections, which ensures that condensate occurring in the interior can flow in the direction of the check valve. The tubular or tubular section can have an overall conical shape or can consist of conical sections of different cone angles and lengths.
Bei dem Rückschlagventil handelt es sich insbesondere um ein Schnabelrückschlagventil, das vorzugsweise aus Elastomer-Material besteht. Mit anderen Worten ist ein flexibles Element vorgesehen, das in abdichtender bzw. geschlossener Stellung in einer ersten Seitenansicht die Geometrie eines gleichschenkligen Dreiecks und in einer um 90° versetzt verlaufenden Seitenansicht die Geometrie eines Vierecks aufweist. Das Schnabelrückschlagventil umfasst einen hohlzylindrischen Basisabschnitt, von dem in geschlossener Stellung des Rückschlagventils zwei diametral gegenüberliegenden in Seitenansicht des Rückschlagventils eine Dreiecksgeometrie aufweisende Hohlzylinderabschnitte mit jeweils einer Spitze ausgehen, die über zumindest außenseitig plane Abschnitte verbunden sind, die im Bereich einer die Spitzen der Hohlzylinderabschnitte verbindenden Geraden getrennt sind. Dabei sind die entlang der Geraden verlaufenden Ränder insbesondere als Dichtlippen ausgebildet.The check valve is in particular a beak check valve, which preferably consists of elastomer material. In other words, a flexible element is provided which, in the sealing or closed position, has the geometry of an isosceles triangle in a first side view and the geometry of a square in a side view offset by 90 °. The beak check valve comprises a hollow cylindrical base section, from which, when the check valve is in the closed position, two diametrically opposed hollow cylinder sections with a triangular geometry in side view of the check valve each have a tip, which are connected by at least externally flat sections which are connected in the region of a straight line connecting the tips of the hollow cylinder sections are separated. The edges running along the straight line are designed in particular as sealing lips.
Die Verschlusseinrichtung selbst ist vorzugsweise als Hohlstopfen ausgebildet und weist im Schnitt eine U-Geometrie mit Boden- und Umfangswandung auf, deren Außenfläche einen Konus aufspannt.The closure device itself is preferably designed as a hollow plug and has an average U-geometry with bottom and peripheral walls, the outer surface of which spans a cone.
Um den Verschlussstopfen in Rohre unterschiedlicher Nennweiten einsetzen zu können, ist vorgesehen, dass in der Außenfläche der Umfangswandung mehrere parallel und in Achsrichtung beabstandet zueinander verlaufende Dichtungen vorgesehen sind, die umlaufend ausgebildet sind.In order to be able to use the sealing plug in pipes of different nominal widths, it is provided that in the outer surface of the circumferential wall a plurality of seals running in parallel and spaced apart in the axial direction are provided, which are formed all around.
Vorzugsweise ist die Abzweigung, die über die Verschlusseinrichtung verschließbar ist, ein Rohrabschnitt eines eine Y-Geometrie aufweisenden Zwischenstücks der Anschlussleitung, wobei die Abzweigung in Verlängerung eines Abschnitts der Anschlussleitung verläuft, die gegenüber dem Zwischenstück über eine Dichtung wie einen Konusdichtring abgedichtet ist. Dabei ist vorgesehen, dass sich der rohr- oder schlauchförmige Abschnitt mit dem Rückschlagventil von der Abzweigung aus betrachtet bis hinter der Dichtung erstreckt. Somit ist sichergestellt, dass beim Absaugen von Abwasser das Rückschlagventil stets von diesem umspült wird.The branch, which can be closed via the closure device, is preferably a pipe section of an intermediate piece of the connecting line having a Y geometry, the branch extending in an extension of a section of the connecting line which is sealed off from the intermediate piece by a seal, such as a cone sealing ring. It is envisaged that the tubular or tubular section with the check valve, viewed from the branch, extends to behind the seal. This ensures that the non-return valve is always flushed around when the waste water is extracted.
Die Unterdruckabwasseranlage der eingangs genannten Art zeichnet sich dadurch aus, dass die Verschlusseinrichtung einen rohr- oder schlauchförmigen Abschnitt aufweist, der endseitig das Rückschlagventil aufweist, das sich bis in die Anschlussleitung erstreckt. Somit befindet sich das Rückschlagventil im frostsicheren Bereich der Unterdruckabwasseranlage. Dabei geht die Abzweigung von einem eine Y-Geometrie aufweisenden Zwischenstück der Anschlussleitung aus. Zwischenstück und angrenzender Abschnitt der Anschluss- oder Abwasserleitung sind über eine Dichtung wie z. B. einen Konusdichtungsring abgedichtet. Die von der Verschlusseinrichtung wie Verschlussstopfen absperrbare Abzweigung erstreckt sich in Verlängerung des Abschnitts der Anschlussleitung, wobei der das Rückschlagventil endseitig aufweisende rohr- oder schlauchförmige Abschnitt vorzugsweise hinter der Dichtung verläuft.The vacuum sewage system of the type mentioned at the outset is characterized in that the closure device has a tubular or tubular section which has the non-return valve at the end, which extends into the connecting line. The check valve is thus located in the frost-proof area of the vacuum sewage system. The branch starts from an intermediate piece of the connecting line that has a Y geometry. Intermediate piece and adjacent section of the connection or waste water line are connected by a seal such as. B. sealed a cone sealing ring. The branch which can be shut off by the closure device, such as a stopper, extends in the extension of the section of the connecting line, the tubular or tubular section having the check valve at the end preferably running behind the seal.
Bevorzugterweise ist der das Rückschlagventil aufweisende rohr- oder schlauchförmige Abschnitt mit der Verschlusseinrichtung verbunden. Eine integrale Ausbildung ist gleichfalls möglich.The tubular or tubular section having the check valve is preferably connected to the closure device. An integral training is also possible.
Ferner sollte der Abschnitt in einem Umfang flexibel sein, dass eine gewisse Beweglichkeit gegeben ist, ohne dass ein Stauchen in Längsrichtung erfolgt, wodurch ggfs. die Abwasserleitung bzw. das Zwischenstück verstopft werden könnte.Furthermore, the section should be flexible to an extent that there is a certain degree of mobility without being compressed in the longitudinal direction, as a result of which the sewage pipe or the intermediate piece could possibly be blocked.
Losgelöst hiervon sollte der Querschnitt des rohr- oder schlauchförmigen Abschnitts derart auf den der Abwasser- bzw. Anschlussleitung bzw. des Zwischenstücks abgestimmt sein, dass eine unerwünschte Querschnittsverringerung, die zu einem erhöhten Strömungswiderstand führen würde, unterbleibt.Detached from this, the cross section of the tubular or tubular section should be matched to that of the waste water or connection line or the intermediate piece in such a way that an undesirable reduction in cross section, which would lead to increased flow resistance, does not occur.
Weitere Einzelheiten, Vorteile und Merkmale der Erfindung ergeben sich nicht nur aus den Ansprüchen, den diesen zu entnehmenden Merkmalen -für sich und/oder in Kombination-, sondern auch aus der nachfolgenden Beschreibung eines der Zeichnung zu entnehmenden bevorzugten Ausführungsbeispiels.Further details, advantages and features of the invention result not only from the claims, the features to be extracted from them — individually and / or in combination — but also from the following description of a preferred exemplary embodiment that can be found in the drawing.
Es zeigen:
- Fig. 1
- eine Prinzipdarstellung eines Unterdruck-Abwassersystems,
- Fig. 2
- einen Ausschnitt eines Schachts gemäß
Fig. 1 und - Fig. 3
- ein Y-förmiges Zwischenstück mit Verschlusseinrichtung.
- Fig. 1
- a schematic diagram of a vacuum sewage system,
- Fig. 2
- a section of a shaft according
Fig. 1 and - Fig. 3
- a Y-shaped intermediate piece with locking device.
Unterdruck- bzw. Vakuumabwasser- bzw. Entwässerungssysteme oder -anlagen werden vorwiegend als reine Schmutz-Kanalisation eingesetzt. Der
Im Ausführungsbeispiel der
Vergrößert ist in
Um das Absperrventil 56 zu öffnen bzw. zu schließen, geht von der Steueranordnung 54 eine Leitung 64 aus, die in dem Absperrventil 56 mündet. Funktion und Aufbau der Steueranordnung 54 bzw. des Absperrventils 56 sind hinreichend bekannt. Beispielhaft wird auf die
Um sicherzustellen, dass über den Verschlussstopfen 60 und die Leitung 62 Wasser nicht in die Steueranordnung 54 gelangen kann, ist die den Verschlussstopfen 60 durchsetzende Verbindung zu der Leitung 62 über ein Rückschlagventil 100 absperrbar, das erfindungsgemäß derart positioniert ist, dass auch bei tiefen Temperaturen im Bereich des Hausanschlussschachts 50 ein Einfrieren nicht möglich ist. Mit anderen Worten wird das Rückschlagventil 100 frostsicher positioniert. Hierzu ist der Verschlussstopfen 60 mit einem schlauch- oder rohrförmigen Element 102 verbunden, das auch integraler Bestandteil des Verschlussstopfens 60 sein kann. Dabei erstreckt sich das schlauch- oder röhrförmige Element 102 bis in die Anschlussleitung 18 hinein, also im Ausführungsbeispiel bis hinter einer Dichtung wie Konusdichtring 104, über die das Zwischenstück 57 gegenüber der Anschlussleitung 18 abgedichtet ist. Das Rückschlagventil 100 geht vom Ende des schlauch- oder rohrförmigen Elements 102 aus, liegt demnach hinter der Dichtung 104.In order to ensure that water cannot get into the
Wie aus der
Das Rückschlagventil 100 kann integral mit dem schlauch- oder rohrförmigen Element 102 ausgebildet sein.The
Durch die Konusform bzw. konusförmigen Abschnitte 103, 105 des schlauch- oder rohrförmigen Elements 102 ergibt sich der Vorteil, dass entstehendes Kondensat entlang der Innenfläche des schlauch- oder rohrförmigen Elements 102 in Richtung des Rückschlagventils 100 fließen kann, so dass beim Öffnen des Ventils 100 ein Absaugen erfolgt. Somit ist sichergestellt, dass Flüssigkeit nicht in die Steueranordnung 54 gelangen kann.The conical shape or
Bei dem Rückschlagventil 100 kann es sich insbesondere um ein Schnabelrückschlagventil handeln, das einen hohlzylindrischen Basisabschnitt 106 umfasst, das mit dem Ende des rohr- bzw. schlauchförmigen Elements 102 dicht verbunden ist. Das Rückschlagventil 100 besteht insbesondere aus Elastomer-Material. In Längsrichtung und in abdichtender Position besteht das Rückschlagventil 100 in einem ersten Längsschnitt aus zwei Schenkeln eines gleichschenkligen Dreiecks. In einem um 90° zu dem ersten Längsschnitt versetzt verlaufenden zweiten Längsschnitt ist eine U-förmige Geometrie gegeben. Mit anderen Worten weist das Rückschlagventil 100 in geschlossener Stellung in einer ersten Seitenansicht die Geometrie eines gleichschenkligen Dreiecks und in einer um 90° zu der ersten Seitenansicht versetzt verlaufenden zweiten Seitenansicht die Geometrie eines Vierecks auf.The
Durch die schnabelförmige Geometrie des Rückschlagventils 100 ist sichergestellt, dass dann, wenn entgegen üblicher Strömungsrichtung über die Anschlussleitung 18 Wasser zurückströmen sollte, das Rückschlagventil 100 dicht verschlossen ist, so dass über den Verschlussstopfen 60 und die Leitung 62, die von einem L-förmigen Anschlussstück 63 ausgeht, Wasser nicht in die Steueranordnung 54 gelangen kann.The beak-shaped geometry of the
Ausdrücklich sei noch einmal darauf hingewiesen, dass das Rückschlagventil 100 nicht zwingend als Schnabelrückschlagventil ausgebildet sein muss. Andere geeignete Rückschlagventile kommen gleichfalls in Frage, wobei das Rückschlagventil 100 integraler Bestandteil des schlauch- oder rohrförmigen Elements 102 ist und mit diesem z. B. durch Spritzen als Einheit hergestellt sein kann.It should be expressly pointed out once again that the
Aus der Darstellung der
Wie sich aus der
Claims (21)
- Arrangement for a vacuum sewer system having a control arrangement (54) for an extraction / shut-off valve (56), with a connecting pipe (18) flowed through by sewerage, with a branch (58) connected to said connecting pipe, and with a closing device (60) inserted therein, via which a connection between the connecting pipe and the control arrangement can be made,
wherein
the closing device (60) has a pipe-like or tube-like section (102) extending in the connecting pipe (18) and having at the end a non-return valve (100). - Arrangement according to claim 1,
wherein
the section (102) tapers in the direction of the non-return valve (100). - Arrangement according to claim 1 or 2,
wherein
the section consists of two conically designed sections (103, 105) of which the section (103) on the closing device side is preferably shorter than the section (105) on the non-return valve side. - Arrangement according to at least one of the preceding claims,
wherein
the pipe-like or tube-like section (102) and the non-return valve (100) are designed in one piece and in particular consist of elastomer material. - Arrangement according to at least one of the preceding claims,
wherein
the pipe-like or tube-like section (102) is detachably connected to the closing device (60), the outer surface of the section (103) on the closing device side of the pipe-like or tube-like section (102) in particular merging flush or almost flush into the outer surface (112) of the closing device (60). - Arrangement according to claim 3,
wherein
the section (103) of the pipe-like or tube-like section (102) on the closing device side merges into an all-round seal (116) inserted into the outer surface (112) of the closing device (60). - Arrangement according to at least one of the preceding claims,
wherein
the non-return valve (100) is a duckbill valve. - Arrangement according to at least one of the preceding claims,
wherein
the closing device (60) is a hollow plug, said hollow plug (60) having in section a preferably U-shaped geometry with bottom wall (108) and circumferential wall (110) whose outer surface encloses a cone. - Arrangement according to at least one of the preceding claims,
wherein
several all-round seals (114, 116) parallel and at a distance to one another in the axial direction are provided in the outer surface of the circumferential wall (110). - Arrangement according to at least one of the preceding claims,
wherein
the branch (58) is a pipe section of an intermediate piece (57) of the connecting pipe (18) having a Y-shaped geometry and being an extension of a section of the connecting pipe (18) which is sealed against the intermediate piece (57) by a seal such as a conical ring seal (104). - Arrangement according to at least one of the preceding claims,
wherein
the pipe-like or tube-like section (102) with the non-return valve (100), extending from the closing device (60) extends, when viewed from the branch, to behind the seal (104). - Vacuum sewer system comprising- a vacuum source,- a main collecting tank,- a vacuum pipe (13),- a sewerage collection point (14),- a connecting pipe (18),- an extraction / shut-off valve (56),- a control arrangement (54),- a branch (58),- a closing device (60),- a non-return valve (100),where the vacuum source is connected to the vacuum line in which the connecting pipe extending from the sewerage collection point discharges, the connecting pipe being shut off or released by the extraction / shut-off valve, which is actuated by the control arrangement,
where sewerage flows via the connecting pipe and the vacuum line to the main collecting tank when the extraction / shut-off valve is released, and
where the control arrangement is connected to the vacuum line in terms of pressure via a connection in the closing device closing the branch of the connecting pipe, wherein
the closing device (60) has a pipe-like or tube-like section (102) having at its end the non-return valve (100) which extends into the connecting pipe (18). - Vacuum sewer system according to claim 12,
wherein
the non-return valve is located in the connecting pipe (18) or in an intermediate piece (57) connecting sections thereof and flowed through by sewerage to be extracted. - Vacuum sewer system according to claim 12 or 13,
wherein
the pipe-like or tube-like section (102) is detachably connected to the closing device (60) and in particular consists of a conically designed first section (103) on the closing device side and of a conical second section (105) on the non-return valve side. - Vacuum sewer system according to at least one of claims 12 to 14,
wherein
the non-return valve (100) is designed integral with the pipe-like or tube-like section (102). - Vacuum sewer system according to at least one of claims 12 to 15,
wherein
the closing device (60) has in its outer surface (112) an all-round seal (116) merging into the pipe-like or tube-like section (102). - Vacuum sewer system according to at least one of claims 12 to 16,
wherein
the pipe-like or tube-like section (102) extends at least in some sections along the outer surface (112) of the closing device (60). - Vacuum sewer system according to at least one of claims 12 to 17,
wherein
the closing device (60) is a hollow plug, said hollow plug (60) having in section a preferably U-shaped geometry with bottom wall (108) and circumferential wall (110) whose outer surface encloses a cone. - Vacuum sewer system according to at least one of claims 12 to 17,
wherein
a connection piece (63) extends from the bottom wall via which the connection passing through the closing device (60) and merging into the pipe-like or tube-like section (102) is connected to the control arrangement (54). - Vacuum sewer system according to at least one of claims 12 to 19,
wherein
the branch (58) is a pipe section of an intermediate piece (57) having a Y-shaped geometry and arranged between the connecting pipe (18) and the extraction valve (56), said branch (58) in particular being an extension of the adjacent section of the connecting pipe (18) and the intermediate piece (57) being sealed against the connecting pipe by a seal, for example a conical sealing ring (104). - Vacuum sewer system according to claim 20,
wherein
the pipe-like or tube-like section (102) with the non-return valve (100) closing it extends, when viewed from the branch (58), to behind the seal (104).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202006004908 | 2006-03-24 | ||
DE102006015480A DE102006015480B3 (en) | 2006-03-24 | 2006-04-03 | Closure device of a vacuum wastewater system and vacuum wastewater system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1840283A2 EP1840283A2 (en) | 2007-10-03 |
EP1840283A3 EP1840283A3 (en) | 2009-06-24 |
EP1840283B1 true EP1840283B1 (en) | 2020-06-17 |
Family
ID=38134712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07104828.4A Active EP1840283B1 (en) | 2006-03-24 | 2007-03-23 | Closing device of a low-pressure drainage system |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1840283B1 (en) |
DE (1) | DE102006015480B3 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8602919U1 (en) * | 1986-02-05 | 1987-01-22 | Michael, Harald, 2000 Hamburg, De | |
DE3610866C2 (en) * | 1986-02-05 | 1995-04-27 | Harald Michael | Control device for a shut-off valve of a vacuum sewage system |
DE4336020C2 (en) * | 1993-10-22 | 1997-05-15 | Roediger Anlagenbau | Control arrangement for a shut-off valve which can be actuated by negative pressure |
EP1091053A1 (en) * | 1999-10-05 | 2001-04-11 | ROEDIGER VAKUUM- und HAUSTECHNIK GmbH | Control device for vacuum actuated stop valve and method of control of the valve |
-
2006
- 2006-04-03 DE DE102006015480A patent/DE102006015480B3/en active Active
-
2007
- 2007-03-23 EP EP07104828.4A patent/EP1840283B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP1840283A3 (en) | 2009-06-24 |
DE102006015480B3 (en) | 2007-10-11 |
EP1840283A2 (en) | 2007-10-03 |
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