EP1688547B1 - Ensemble de clapets anti-retour - Google Patents

Ensemble de clapets anti-retour Download PDF

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Publication number
EP1688547B1
EP1688547B1 EP06001816A EP06001816A EP1688547B1 EP 1688547 B1 EP1688547 B1 EP 1688547B1 EP 06001816 A EP06001816 A EP 06001816A EP 06001816 A EP06001816 A EP 06001816A EP 1688547 B1 EP1688547 B1 EP 1688547B1
Authority
EP
European Patent Office
Prior art keywords
housing
system separator
separator according
pot
valve
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.)
Active
Application number
EP06001816A
Other languages
German (de)
English (en)
Other versions
EP1688547A2 (fr
EP1688547A3 (fr
Inventor
Uwe Pfeiffer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Garrett Motion SARL
Original Assignee
Honeywell Technologies SARL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honeywell Technologies SARL filed Critical Honeywell Technologies SARL
Priority to PL06001816T priority Critical patent/PL1688547T3/pl
Publication of EP1688547A2 publication Critical patent/EP1688547A2/fr
Publication of EP1688547A3 publication Critical patent/EP1688547A3/fr
Application granted granted Critical
Publication of EP1688547B1 publication Critical patent/EP1688547B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/106—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using two or more check valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/108—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves having an aerating valve

Definitions

  • the invention relates to a system separator having a housing, an inlet-side non-return valve, an outlet-side non-return valve and a valve for releasing or closing an outlet (discharge valve), which is arranged between the non-return valve.
  • system separators are from the publications with the publication numbers DE 198 54 951 C2 .
  • the system separators known from these documents have housings which, due to their construction, have to be designed as relatively expensive injection molded or cast parts.
  • external sockets are provided for example for measuring connections and for the drain.
  • a plurality of undercuts and projections and the like are formed in the interior of the housing. These sockets, undercuts and protrusions can not be made by machining. Rather, a casting or injection process for the production of the housing is necessary.
  • the housings are designed in several parts, so that the drain valve, the input-side and the output-side non-return valve can be mounted in the housing.
  • the drain valve, the input-side and the output-side non-return valve can be mounted in the housing.
  • This system separator is not completely pressure compensated. This is because the pressurizable surfaces in the end positions abut with a part of a stop or valve seat. This reduces the effective pressurizable area of the corresponding side of the valve pot.
  • the present invention has for its object to provide a system separator, which is as simple as possible to produce and is pressure balanced in all positions of the pot.
  • the housing has an inner circumferential collar which forms a valve seat of the drain valve.
  • the collar forming the valve seat has a conically circumferential surface on which the valve ring rests in the closed state.
  • a four-lip sealing ring is inserted into a groove in the outer surface of the pot and the pot has a same pressurizable surface in the direction of the inlet and in the direction of the outlet.
  • the housing according to the invention may have a uniform outer cross-section.
  • the outer shape of the housing is cylindrical.
  • a housing according to the invention may have an inner surface which is free of undercuts.
  • a one-piece housing is particularly advantageous for the assembly of the system separator according to the invention.
  • the other aforementioned possible properties of a system separator according to the invention or a housing of a system separator according to the invention favor a simple construction and a simple assembly of a system separator according to the invention.
  • the housing can be produced by machining, for example as a turned part. A complex casting of the housing is then not necessary. Rather, the housing can be made of a tube or rod by turning and drilling.
  • the housing Due to the uniform outer cross section of the housing, it is possible to insert the system separator in a pipe. If the system separator can be inserted into a pipe, it is not absolutely necessary that the housing of the system separator be pressure-resistant. The pressure resistance can then be ensured by the tube surrounding the system separator. If the housing can be inserted into a pipe, the housing can therefore be made of plastic and in particular of plastic injection-molded part.
  • the housing of a system separator according to the invention may have a first cylindrical portion extending from an entrance of the system separator to an inner circumferential collar.
  • a second cylindrical portion may be provided extending from the exit to the inner circumferential collar.
  • the inner contour of the housing is thus very simple and can be produced for example by turning, drilling or milling.
  • the drain valve of a system separator may comprise a valve seat, which is part of a housing and in particular is formed by the inner circumferential collar of the housing.
  • the drain valve may further comprise a valve ring slidable in the housing.
  • the valve ring can be firmly connected to a piston, in particular in one piece, the piston and the valve ring forming a pot.
  • the pot which is formed by the piston and the valve ring, has in the direction of the input and in the direction of the exit on an equal effective pressurized surface, so that the system separator is pressure-balanced, that is independent of prepressure regulated.
  • the piston of the pot may have a preferably central hole, which can be closed by means of the input-side backflow preventer.
  • the input-side backflow preventer is advantageously arranged in the pot.
  • the pot of a system separator according to the invention may have a substantially uniform outer cross-section, which favors a cost-effective production of the pot.
  • further grooves may be provided, in which four-lip seals are used, on the one hand for sealing the Pot can serve against the housing and on the other hand for sealing the drain valve.
  • the pot is, moreover, preferably inserted in the first cylindrical portion of the housing, while the output-side non-return valve can be advantageously used in the second cylindrical portion of the housing.
  • At the input side end of the housing may be provided over the remaining outer surface of the housing protruding collar.
  • This collar can be used to attach the system separator inserted in a pipe to the end of the pipe. If the system separator is intended for insertion into a pipe, it is advantageous if further grooves are provided in the outer lateral surface of the housing, in which sealing rings are inserted, which seal the housing against the pipe.
  • the first system separator according to Fig. 1 and 2 and the second system separator according to Fig. 3 are similar in essential parts that are important to the function of the system separator.
  • the same parts of the system separator are therefore provided with the same reference numerals and are described in detail for the first system separator. Then the differences between the first system separator and the second system separator are given.
  • the first system separator has a housing 1 having an outer cylindrical shape with a uniform outer cross section. This housing has an input 2 at a first end and an output 3 at a second end. In the region of the outlet 3, an external thread is cut into the outer jacket surface of the housing 1, via which the first system separator can be connected to a pipeline.
  • This pot 9 is formed from a piston which forms the bottom of the pot and a valve ring, wherein the valve ring and the piston are integrally connected to each other.
  • the pot is with its bottom, d. H. inserted with the piston to the input 2 in the first portion of the housing and slidable in this.
  • the piston has a central bore.
  • the pot On the inside, the pot has a further circumferential groove into which a support and guide element 12 is inserted.
  • This support and guide element 12 has a central bore and further holes surrounding this central bore.
  • a piston rod In the central bore a piston rod is guided, which is integrally connected to an input-side piston. Piston and piston rod together form an input-side backflow preventer.
  • the piston of the backflow preventer 5 cooperates with the edge of the bore in the bottom of the pot 9.
  • a seal 6 is provided, which is inserted into a circumferential groove of the piston of the non-return valve 5.
  • the non-return valve 5 is supported by a spring 7 against the support and guide member 12, so that the spring force of the spring 7 presses the backflow preventer in the first operating state against the edge of the bore in the bottom of the pot 9.
  • Another spring 10 which is also supported on the guide and support member 12, cooperates with the pot 9.
  • this spring 10 is supported on an inwardly projecting circumferential collar at the end of the first portion of the housing. On this circumferential collar, the spring 10 is supported and presses the pot towards the entrance. 2
  • one or more transverse bores are provided, which form outlet openings 4 of the system separator.
  • These drain openings 4 can be closed by the valve ring of the pot 9, when this valve ring rests against the inner circumferential collar of the housing (second and third operating state).
  • This inner circumferential collar forms namely a valve seat cooperating with the valve ring. So that this valve can be tightly closed, the four-lip sealing ring 11 'is provided in the groove of the pot 9.
  • a further transverse bore is provided which forms a measuring connection 15, wherein this measuring connection 15 can be closed with a stopper, not shown.
  • the inner circumferential collar defines a second cylindrical portion in the housing 1 of the system separator, in which an output-side backflow preventer 13 is inserted.
  • This Output-side non-return valve is mounted as a plug-in part and has a defined opening force by a spring.
  • the two backflow preventer 5, 13 three different pressure zones within the housing or the system separator are created, namely a pre-pressure zone, in which the inlet pressure prevails in front of the input-side backflow preventer 5, a back pressure zone, in which the pressure prevails behind the output-side backflow preventer 13, and a Medium pressure zone, in which a pressure between the input and output side prevails.
  • This central zone is also referred to as the middle chamber 14.
  • the pressure difference between the pre-pressure zone and the middle chamber 14 and the pressure difference between the middle chamber 14 and the back pressure zone is such that both backflow preventer 5, 13 are closed.
  • a flow through the housing 1 or through the system separator is not possible.
  • Such a state is achieved, for example, when the system separator is completely depressurized or when the inlet pressure falls below the pressure sum of medium pressure and pressure loss via the spring 7 (disconnected position).
  • the bleed valve is opened from the valve ring and the valve seat, so that the center chamber 14 is connected to the environment of the system separator and a liquid is discharged from the middle chamber 14 into the environment.
  • the middle chamber 14 is completely emptied, since there are no undercuts that produce dead water zones.
  • the pot 9 initially moves in the direction of the inner circumferential collar due to the choice of the spring constant, and the valve ring of the pot 9 closes the discharge opening 4 so that the system separator can be moved by means of the seals 11, 11 '. sealed against the environment.
  • the second operating state as in the Fig. 1 is shown in the right half of the picture is reached.
  • the input side and the output side backflow preventer 5 and 13 are still closed in this second operating state, so that no flow through the system separator is possible. This is the case, for example, in the state in which no liquid is removed at the exit of the system separator.
  • the inlet-side non-return valve 5 opens and in the middle chamber 14 a pressure can be built up. The same happens with pressure drop on the exit side, as caused for example by a beginning liquid decrease. This pressure ultimately causes an opening of the output-side non-return valve 13. Thus, a flow through the system separator can be used.
  • the third operating state is reached, as in Fig. 2 in the right half of the picture.
  • the design and function of the system separator corresponds to the Fig. 3 the above-described system separator according to the Fig. 1 and 2 .
  • An essential difference between the first system separator and the second system separator is that the housing 1 of the first system separator is designed as a pressure-resistant housing. This housing and thus the entire system separator can be used as a separate component between two pipes.
  • the housing 1 of the second system separator does not have to be pressure-resistant, but merely liquid-tight. A pressure normally prevailing in the system separator could destroy the housing 1. However, the housing 1 of the second system separator is designed so that it can be inserted into a pressure-resistant pipeline. The pressure stability is then ensured by the surrounding the housing 1 of the system separator pipe 30. For fixing the second system separator in a pipe 30, the second system separator on one side of the housing on a collar 22 which has a larger outer diameter than the pipe 30.Darhyroid is the collar here on the input side.
  • the pipe 30 has at this end an external thread and by means of a union nut 32, the second pipe 31 are connected to the first pipe 30, the union nut on the one hand, the second pipe 31 and at the same time the second system separator firmly connected to the first pipe 30.
  • the first pipeline has at least one transverse bore, which overlaps with the outlet opening 4 in the housing of the second system separator.
  • This transverse bore forms a continuation 4 'of the drain opening 4 of the system separator.
  • a corresponding transverse bore is also provided in the region of the measuring port 15, which is identified by the reference numeral 15 '.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)
  • Safety Valves (AREA)
  • Cyclones (AREA)
  • Debugging And Monitoring (AREA)
  • Seal Device For Vehicle (AREA)
  • Details Of Valves (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Valve Housings (AREA)
  • Centrifugal Separators (AREA)

Claims (18)

  1. Système anti-retour comprenant un boîtier (1), un dispositif antireflux (5) du côté de l'entrée, un dispositif antireflux (13) du côté de la sortie et une soupape d'évacuation pour ouvrir ou fermer une évacuation (4) qui est disposée entre les dispositifs antireflux (5, 13), le boîtier (1) étant réalisé d'une seule pièce, la soupape d'évacuation comprenant une bague de soupape déplaçable dans le boîtier, qui est connectée fixement à un piston en formant un pot (9), caractérisé en ce que
    le boîtier présente un épaulement interne périphérique qui forme un siège de soupape de la soupape d'évacuation,
    l'épaulement formant le siège de soupape présente une surface périphérique conique sur laquelle s'applique la bague de soupape dans l'état fermé, et
    pour l'étanchéité de la soupape d'évacuation dans l'état fermé, une bague d'étanchéité à quatre lèvres est insérée dans une rainure dans la surface d'enveloppe extérieure du pot, et
    le pot (9), dans la direction de l'entrée (2) et dans la direction de la sortie (3) a une surface active identique pouvant être pressurisée.
  2. Système anti-retour selon la revendication 1, caractérisé en ce que le boîtier (1) a une section transversale extérieure uniforme.
  3. Système anti-retour selon la revendication 1 ou 2, caractérisé en ce que la forme extérieure du boîtier (1) est cylindrique.
  4. Système anti-retour selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la surface intérieure du boîtier (1) est exempte de contre-dépouilles.
  5. Système anti-retour selon les revendications 1 à 4, caractérisé en ce que le boîtier (1) est réalisé par usinage par enlèvement de copeaux.
  6. Système anti-retour selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le boîtier (1) peut être inséré dans un tube (30).
  7. Système anti-retour selon l'une quelconque des revendications 1 à 4, ou selon la revendication 6, caractérisé en ce que le boîtier (1) est une pièce moulée par injection.
  8. Système anti-retour selon la revendication 7, caractérisé en ce que le boîtier (1) se compose au moins en partie de plastique.
  9. Système anti-retour selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le piston présente un orifice qui peut être fermé au moyen du dispositif antireflux (5) du côté de l'entrée.
  10. Système anti-retour selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le dispositif antireflux (5) du côté de l'entrée est disposé dans le pot (9).
  11. Système anti-retour selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le pot (9) a une section transversale extérieure essentiellement uniforme.
  12. Système anti-retour selon la revendication 11, caractérisé en ce que le pot (9) est rendu étanche vis-à-vis du boîtier (1) au moyen d'une bague d'étanchéité à quatre lèvres (11).
  13. Système anti-retour selon l'une quelconque des revendications 1 à 12, caractérisé en ce que le boîtier (1) présente une première portion cylindrique.
  14. Système anti-retour selon la revendication 13, caractérisé en ce que le pot (9) est inséré dans la première portion cylindrique.
  15. Système anti-retour selon les revendications 1 à 14, caractérisé en ce que le dispositif antireflux (13) du côté de la sortie est insérée dans une deuxième portion cylindrique du boîtier (1).
  16. Système anti-retour selon les revendications 13 et 15, caractérisé en ce que la première portion cylindrique est séparée de la deuxième portion cylindrique par un épaulement périphérique interne.
  17. Système anti-retour selon l'une quelconque des revendications 1 à 16, caractérisé en ce que le boîtier (1) présente à une extrémité du côté de l'entrée un rebord (22).
  18. Système anti-retour selon l'une quelconque des revendications 1 à 17, caractérisé en ce que le boîtier (1) présente dans la surface d'enveloppe extérieure des rainures pour des bagues d'étanchéité (21, 21') .
EP06001816A 2005-02-04 2006-01-30 Ensemble de clapets anti-retour Active EP1688547B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06001816T PL1688547T3 (pl) 2005-02-04 2006-01-30 Zawór odcinający

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005005452A DE102005005452A1 (de) 2005-02-04 2005-02-04 Systemtrenner

Publications (3)

Publication Number Publication Date
EP1688547A2 EP1688547A2 (fr) 2006-08-09
EP1688547A3 EP1688547A3 (fr) 2007-02-21
EP1688547B1 true EP1688547B1 (fr) 2011-01-19

Family

ID=36217608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06001816A Active EP1688547B1 (fr) 2005-02-04 2006-01-30 Ensemble de clapets anti-retour

Country Status (6)

Country Link
EP (1) EP1688547B1 (fr)
AT (1) ATE496177T1 (fr)
DE (2) DE102005005452A1 (fr)
DK (1) DK1688547T3 (fr)
ES (1) ES2360231T3 (fr)
PL (1) PL1688547T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007013818B4 (de) * 2007-03-22 2011-07-14 Airbus Operations GmbH, 21129 Flugzeugklimaanlage mit einem Messanschlusselement
EP2239379B1 (fr) * 2009-04-09 2012-07-25 Similor AG (Similor SA) Dispositif de protection contre la pollution par retour d'eau
DE102009048093B4 (de) 2009-10-02 2022-09-01 Axel R. Hidde System- oder Rohrtrenner in Modulbauweise als Patrone
DE102017007458A1 (de) * 2017-08-08 2019-02-14 Honeywell Technologies Sarl Sicherungsarmatur
DE102017012291B3 (de) * 2017-08-08 2021-06-10 Honeywell Technologies Sarl Rückflussverhinderer und Sicherungsarmatur

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1647873A (en) * 1926-07-14 1927-11-01 Dudley A Lockwood Check valve
DE2157363A1 (de) * 1971-11-19 1973-05-24 Guenter Preuss Rohrunterbrecher fuer fluessigkeitsleitungen
DE2424978C2 (de) * 1974-05-22 1985-01-10 Honeywell-Braukmann GmbH, 6950 Mosbach Rohrunterbrecher, insbesondere für Hauswasserleitungen
US4132241A (en) * 1976-10-13 1979-01-02 Tannetics, Inc. Flow control device
DE19854951C2 (de) * 1998-11-27 2001-11-15 Rudolf Vollmer Systemtrenner
US6220282B1 (en) * 1999-11-03 2001-04-24 Hunter Innovations, Inc. Backflow prevention apparatus
DE20218121U1 (de) * 2002-11-22 2003-03-27 Vollmer Rudolf Systemtrenner
DE20305410U1 (de) * 2003-04-03 2003-07-10 Gruenbeck Josef Wasseraufb Systemtrenner
DE10335380B3 (de) * 2003-07-28 2004-11-25 Alfred Kärcher Gmbh & Co. Kg Rückflußverhinderer

Also Published As

Publication number Publication date
DK1688547T3 (da) 2011-05-09
ES2360231T3 (es) 2011-06-02
EP1688547A2 (fr) 2006-08-09
ATE496177T1 (de) 2011-02-15
EP1688547A3 (fr) 2007-02-21
PL1688547T3 (pl) 2011-07-29
DE102005005452A1 (de) 2006-08-17
DE502006008748D1 (de) 2011-03-03

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