EP0733863B1 - Vase d'expansion - Google Patents

Vase d'expansion Download PDF

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Publication number
EP0733863B1
EP0733863B1 EP96103700A EP96103700A EP0733863B1 EP 0733863 B1 EP0733863 B1 EP 0733863B1 EP 96103700 A EP96103700 A EP 96103700A EP 96103700 A EP96103700 A EP 96103700A EP 0733863 B1 EP0733863 B1 EP 0733863B1
Authority
EP
European Patent Office
Prior art keywords
section
diaphragm
container
membrane
expansion tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96103700A
Other languages
German (de)
English (en)
Other versions
EP0733863A2 (fr
EP0733863A3 (fr
Inventor
Horst Böhme
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.)
Franz Kaldewei GmbH and Co KG
Original Assignee
Franz Kaldewei GmbH and Co KG
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 Franz Kaldewei GmbH and Co KG filed Critical Franz Kaldewei GmbH and Co KG
Publication of EP0733863A2 publication Critical patent/EP0733863A2/fr
Publication of EP0733863A3 publication Critical patent/EP0733863A3/fr
Application granted granted Critical
Publication of EP0733863B1 publication Critical patent/EP0733863B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F24D3/1016—Tanks having a bladder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks

Definitions

  • the present invention relates to a pressure compensation vessel to accommodate volume changes in a quantity of one Temperature responsive liquid with a change rigid container housing, the one feed nozzle and one Has drain pipe for the liquid and one in the Housing attachable stretchable membrane covering the interior of the container into a liquid space and a gas space divided, with the membrane in the unstretched initial state an area with an approximately star-shaped cross section Folding.
  • Pressure expansion vessels of this type are used for Heaters or water heating systems used.
  • a Pressure compensation vessel of the type mentioned at the beginning is e.g. known from German utility model 19 85 404 (U1), which forms the preamble of claim 1.
  • the Membrane has an area here in the unstretched initial state with an approximately star-shaped fold in cross section. By this cross-sectional shape deviates from the circular shape a gentler strain and deformation of the membrane the expansion achieved.
  • the object of the present invention is a Pressure expansion tank of the type mentioned with a Creating membrane that has high wear resistance shows, always expands and contracts in a defined way, so that no undefined folds with unwanted Water pockets can be formed and a better one Length compensation is given for a membrane under pressure.
  • a solution according to the invention provides this object Pressure expansion tank of the type mentioned with the characteristic features of the main claim.
  • the ring beads according to the invention and the concaves Curvatures improve the length compensation for pressure loads Membrane.
  • the membrane is in the unstretched initial state also folded so that there is about a cross section Star shape results. With increasing fluid pressure in the Liquid space inside the membrane becomes the concave Sections of the star-shaped membrane pressed outwards, see above that the membrane approximates a cylindrical shape. He takes Liquid pressure in the interior of the membrane decreases again, then takes the star shape that was originally given Folding.
  • Such a membrane has a high elongation potential and is consequently very wear-resistant. It expands and pulls back together like a lung.
  • the membrane is preferably approximately cylindrical Container with lid part and bottom part in the lid area or Floor area e.g. held over a flange attached to parts of the container clamped in the lid area or bottom area becomes.
  • the membrane preferably extends in Longitudinal direction in the container, with the liquid space inside lies, which is surrounded concentrically by the gas space and Liquid space above and below in the axis area of the Tank attached inlet or outlet nozzle is fed.
  • the extended membrane with a surrounding support plate Openings are provided for the gas passage.
  • To support the folded membrane is a second one within it Support tube attached. This perforated pipe, the pipe for the water supply can prevent a complete closing of the membrane inwards and ensures the possibility of a constant water flow in the unstretched initial state of the folded membrane.
  • a section with the approximately star-shaped Cross section and / or below this section shows the Membrane on a ring bead. Between ring bead and star-shaped section is concave at the top and / or at the bottom Curvature present.
  • the star-folded part can be three or more star arms distributed over the circumference in symmetrical Arrangement with concave arches in between Have sections.
  • FIGS. 1 to 3 the specially trained according to the invention Wrinkle membrane explained.
  • Fig. 1 shows the fold membrane in lower part in the side view, in the upper part in vertical longitudinal section.
  • the fold membrane has 10 above a mounting flange 11 by a kind of fold is formed and at the bottom is a corresponding mounting flange 15 for mounting in Surge tank.
  • This ring bead connects a curvature 17 towards the inside.
  • this curvature 17 runs through the wall of the fold membrane 10 back outwards and ends in a longer section 16, which, as can be seen from Fig. 2, in plan view seen folded in a star shape.
  • the section according to FIG. 1 shows the transition region 17 between the upper ring bead 13 and the star-folded section 16 in its greatest latitude. It can be seen from Fig. 2 that this Star-shaped fold 16 over the circumference of the fold membrane seen four symmetrical arms 16a, between which each concave wider sections 16b connecting these run. The section Fig. 1 thus runs through an arm 16a of the star fold. The section Fig. 3 runs against it through the narrowest section 16b of the concave curvature of the area folded in a star shape.
  • the Mounting flange 11 not round but on two opposite sides, each with a flat 12 Mistake.
  • the four arms 16a of the star-shaped fold protrude slightly further outwards than the upper ring bead 13.
  • Above the lower mounting flange 15 is also one shaped lower annular bead 14, as can be seen from Fig. 1.
  • the fold membrane 10 is again concave and curved goes up into the star-shaped section 16.
  • Fig. 4 now shows an inventive Pressure expansion tank with built-in fold membrane 10.
  • the entire container is designated by reference numeral 20. He consists of an upper part 20a and a lower part 20b, the are welded together.
  • the container 20 has an approximately cylindrical shape, with the cylindrical wall above in merges into a flat lid section and into one below flat bottom section. As you can see are above and below each provided holding devices 29 which Mounting flange 11 or 15 in the lid area of the Container wall or in the bottom area of the container wall clamp. Concentrically extends axially through the Container 20 a water pipe 21 through which through the upper Feed pipe 25 water enters the container. At the The bottom is the water through the drain port 28 dissipated.
  • the water pipe 21 has openings 22 through which the Water in the liquid space 23 inside the Wrinkle membrane 10 arrives. Outside the fold membrane there is the gas space 24. Between fold membrane 10 and A support plate 26 is also provided with the container wall Openings 27 at which the pressure increases in the Liquid space 23 expanding fold membrane 10 supports.
  • the star-shaped folding of the invention Folded membrane 10 leads to a defined expansion or Contraction of the wrinkle membrane and prevents training of water bags. The residual water can always be completely replaced.
  • the ring beads 13, 14 and the concave curvatures help to compensate for the length membrane under pressure.
  • the gas filling valve 30 for the Filling the gas space of the surge tank in the Area of the wall is attached to the top and at a distance from the container axis.
  • the opening of the Gas filling valve 30 points at an angle of 45 ° Cylinder axis of the container to the outside. Are just as good other angles to the cylinder axis of the container are possible.
  • the Gas filling valve 30 is due to this arrangement according to the invention particularly accessible for an operator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Measuring Fluid Pressure (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (7)

  1. Vase d'expansion pour l'absorption de variations de volume d'un volume de liquide réagissant à des variations de température, avec un récipient rigide (20) qui présente une tubulure d'admission (25) pour le liquide et avec une membrane dilatable (10) pouvant être fixée dans le récipient (20), membrane qui partage l'enceinte du récipient en une chambre à liquide (23) et une chambre à gaz (24), où la membrane (10) à l'état d'origine on dilatée présente une zone avec un pliage qui à l'état d'origine non dilaté présente une zone à pliage à section transversale sensiblement en forme d'étoile,
    caractérisé en ce que le récipient (20) présente également une tubulure d'évacuation (28), en ce que la membrane (10) présente un tronçon supérieur circulaire (13) ayant la forme d'un bourrelet annulaire, qui se raccorde ensuite au tronçon à section transversale sensiblement en forme d'étoile (16) et/ou en ce qu'au-dessous du tronçon à section transversale sensiblement en forme d'étoile (16), la membrane (10) présente un tronçon annulaire inférieure (14) du type bourrelet annulaire, pour produire une compensation de longueur,
    et en ce qu'entre le tronçon annulaire supérieur (13) et/ou le tronçon annulaire inférieur (14) et le tronçon (16) à section transversale sensiblement en forme d'étoile, la membrane (10) présente en section longitudinale un bombement concave (17) vers l'intérieur.
  2. Vase d'expansion suivant la revendication 1, caractérisé en ce que la membrane (10) est en direction longitudinale disposée concentriquement dans le récipient sensiblement cylindrique, de telle sorte qu'il est formé une chambre à gaz (24) annulaire entourant la membrane (10) entre la membrane (10) et la paroi du récipient et une chambre à liquide (23) à section transversale au moins par tronçon sensiblement en forme d'étoile à l'intérieur de la membrane (10).
  3. Vase d'expansion suivant la revendication 1 ou la revendication 2, caractérisé en ce que à l'extrémité supérieure et/ou à l'extrémité inférieure, la membrane présente chaque fois une bride de fixation (11, 15) qui est fixée par serrage dans un dispositif de support (29) du récipient.
  4. Vase d'expansion suivant l'une quelconque des revendications de 1 à 3,
    caractérisé en ce que dans le tronçon à section transversale sensiblement en forme d'étoile (16), la membrane (10) présente, répartis sur la périphérie, quatre bras à allongement maximal en diamètre, et en ce qu'entre ceux-ci la membrane (10) présente des tronçons concaves (16b) qui relient les bras (16a).
  5. Vase d'expansion suivant l'une quelconque des revendications de 1 à 4,
    caractérisé en ce qu'à l'intérieur du récipient, la membrane (10) est concentriquement entourée d'une tôle d'étayage (26) présentant des ouvertures (27), tôle d'étayage sur laquelle elle s'applique en cas de dilatation.
  6. Vase d'expansion suivant l'une quelconque des revendications de 1 à 5,
    caractérisé en ce qu'un tube à eau (21) relié à la tubulure d'admission (25) et à la tubulure d'évacuation (28) est disposé concentrique et centralement en direction axiale au sein de la membrane (10) le tube à eau (21) présentant des ouvertures (22) vers l'enceinte intérieure de la membrane.
  7. Vase d'expansion suivant l'une quelconque des revendications de 1 à 6,
    caractérisé en ce que le récipient présente une forme sensiblement cylindrique avec un couvercle et un fond et en ce que l'axe de la soupape d'admission de gaz (30) forme un angle avec l'axe du récipient sensiblement cylindrique.
EP96103700A 1995-03-22 1996-03-09 Vase d'expansion Expired - Lifetime EP0733863B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19510360A DE19510360C2 (de) 1995-03-22 1995-03-22 Druckausgleichsgefäß
DE19510360 1995-03-22

Publications (3)

Publication Number Publication Date
EP0733863A2 EP0733863A2 (fr) 1996-09-25
EP0733863A3 EP0733863A3 (fr) 1997-03-26
EP0733863B1 true EP0733863B1 (fr) 1999-09-08

Family

ID=7757358

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103700A Expired - Lifetime EP0733863B1 (fr) 1995-03-22 1996-03-09 Vase d'expansion

Country Status (3)

Country Link
EP (1) EP0733863B1 (fr)
AT (1) ATE184387T1 (fr)
DE (3) DE19510360C2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19653776C1 (de) * 1996-12-21 1998-04-30 Winkelmann & Pannhoff Gmbh Ausdehnungsgefäß
DE102004016220A1 (de) * 2004-04-01 2005-11-03 Thermo-Technik-Systeme Gmbh Ausgleichsgefäß für Warmwasserheizkreisläufe
EP2182294B1 (fr) 2008-10-28 2017-03-01 Reflex Winkelmann GmbH Vase d'expansion
FR2970561A1 (fr) * 2011-01-13 2012-07-20 Atlantic Industrie Sas Dispositif de compensation de dilatation
DE102011053053B4 (de) * 2011-08-26 2023-06-15 Cummins Ltd. Fluidleitung
EP2918737A1 (fr) * 2014-03-13 2015-09-16 Varem S.p.A. Récipient d'expansion, en particulier pour des systèmes de plomberie avec une unité de pompage d'eau
IT201900016181A1 (it) * 2019-09-12 2021-03-12 Dab Pumps Spa Vaso di espansione con membrana e pompa comprendente tale vaso di espansione
WO2023147089A1 (fr) * 2022-01-28 2023-08-03 Taco, Inc. Vase d'expansion à tête de collecteur à écoulement actif

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7417124U (de) * 1974-09-19 Gebr Otto Kg Druckausdehnungsgefäß für Warmwasserheizungen
DE1985404U (de) * 1967-01-16 1968-05-16 Junkers & Co Ausdehnungsgefaess fuer eine gesclossene zentralheizunsanlage, insbesondere mit einem gasbeheizten umlauf-wassererhitzer als waermequelle.
GB1373013A (en) * 1972-03-06 1974-11-06 Miles D Expansion compensating means for heating systems
NL184539C (nl) * 1981-02-13 1989-08-16 Flamco Bv Expansievat.
DE3336512C2 (de) * 1983-10-07 1986-03-27 Winkelmann & Pannhoff Gmbh, 4730 Ahlen Ausdehnungsgefäß
DE8507701U1 (de) * 1985-03-15 1985-06-20 Flamco B.V., Gouda Ausdehnungsgefäss

Also Published As

Publication number Publication date
EP0733863A2 (fr) 1996-09-25
ATE184387T1 (de) 1999-09-15
DE59602983D1 (de) 1999-10-14
DE19510360A1 (de) 1996-09-26
EP0733863A3 (fr) 1997-03-26
DE29520889U1 (de) 1996-04-18
DE19510360C2 (de) 1999-09-02

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