EP3757301B1 - Strahlregler - Google Patents

Strahlregler Download PDF

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Publication number
EP3757301B1
EP3757301B1 EP20181851.5A EP20181851A EP3757301B1 EP 3757301 B1 EP3757301 B1 EP 3757301B1 EP 20181851 A EP20181851 A EP 20181851A EP 3757301 B1 EP3757301 B1 EP 3757301B1
Authority
EP
European Patent Office
Prior art keywords
aerator
water
flow path
flow
outlet
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
EP20181851.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3757301A1 (de
EP3757301C0 (de
Inventor
Manuel Keel
Reto Berger
Andreas Rueegg
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.)
KWC Group AG
Original Assignee
KWC Group AG
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 KWC Group AG filed Critical KWC Group AG
Publication of EP3757301A1 publication Critical patent/EP3757301A1/de
Application granted granted Critical
Publication of EP3757301B1 publication Critical patent/EP3757301B1/de
Publication of EP3757301C0 publication Critical patent/EP3757301C0/de
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
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
    • E03C1/084—Jet regulators with aerating means
    • 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
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
    • 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
    • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
    • 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
    • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
    • E03C1/0411—Taps specially designed for dispensing boiling water
    • 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
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
    • E03C1/086—Jet regulators or jet guides, easily mountable on the outlet of taps
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C2201/00—Details, devices or methods not otherwise provided for
    • E03C2201/40—Arrangement of water treatment devices in domestic plumbing installations
    • E03C2201/45—Arrangement of water treatment devices in domestic plumbing installations for carbonated water

Definitions

  • the present invention relates to an aerator for a fitting, according to the preamble of claim 1.
  • An aerator is attached to the outlet of a faucet and is used to shape the water jet. It is therefore largely responsible for the perceptible properties of the exiting water jet and is intended, among other things, to prevent splashing when the water jet exits.
  • faucets that, in addition to normal mixed water (warm/cold), can also dispense boiling water.
  • boiling hot water is kept under pressure in a hot water heater and can be dispensed via the tap.
  • the boiling hot water relaxes so that the water ideally comes out boiling.
  • the gas (steam) produced when the boiling hot water is released causes the water jet to emerge unevenly and with heavy splashing. This cannot be prevented by conventional aerators.
  • the temperature of the water must be lowered, which in turn is undesirable in a faucet for providing boiling hot water.
  • FR813415 describes an aerator for boiling water in which water flows through a spiral and is set in rotation.
  • the housing consists of an inner and an outer cone-shaped housing shell.
  • the inner cone forms a guide section by having ribs stamped into it.
  • the water flows down the inner wall of the inner cone tube, while steam is discharged upwards and from there separately via the space between the outer and inner cones.
  • a faucet is described through which clean, soft and energetically rich water is to be obtained.
  • This has an arrangement of a rotor coated with silver or copper and several permanent magnets.
  • the rotor gives the water a right-hand twist, which means that the water is said to be energetically charged.
  • the faucet body is pear-shaped. On its way to the outlet, the water undergoes several predetermined centrifugal and centripetal deflections and is correspondingly expanded in its flow within the bulging fitting body and then finally fed to the outlet end of the fitting. At the outlet end of the pear-shaped bulge, the water is brought together again to the normal cross-sectional size.
  • the EP 0 429 068 A1 shows an outlet device to enrich water with air bubbles, which has a vortex chamber and a subsequent bubble chamber.
  • the water flow is first rotationally accelerated and is then turbulently swirled by non-return valves 27 and mixed with air sucked in via a central air inlet.
  • the object of the invention is therefore to specify an improved aerator that is suitable for dispensing boiling water and in which the water jet splashes significantly less.
  • an aerator for a faucet for dispensing boiling water which has a substantially cylindrical housing with an inlet opening and an outlet opening, a swirl generation section arranged in the area of the inlet opening with a flow guide running essentially in a helical line for the rotary acceleration of a water flow flowing through is, according to the invention, a relaxation zone following the swirl generation section, in which the rotationally accelerated water flow can flow under the effect of centrifugal force in the area of the inner wall of the housing, and a guide section in which the rotational movement of the water flow is braked and this is guided in the longitudinal direction.
  • the aerator according to the invention is also excellently suited to dispensing water enriched with carbonic acid ("sparkling water").
  • sparkling water water enriched with carbonic acid
  • gas in the form of CO 2 escaping from the water is also produced during expansion.
  • there is an opposite requirement here namely to keep the escape of CO 2 as low as possible, so that more CO 2 dissolved in the water reaches the user's drinking vessel.
  • the pressure drop in the swirl generation section occurs very gently for the CO 2 dissolved in the water, as a result of which the CO 2 content in the sparkling water can be increased by about 30% according to investigations by the applicant.
  • the jet regulator according to the invention can be constructed in a particularly compact manner.
  • the jet regulator according to the invention can be designed with an outer diameter of just between 11 and 13 mm. This makes it possible in particular to use the aerator as an inner aerator in a concentric arrangement of a multifunction fitting in which a further, separate water dispensing opening, for example for industrial or mixed water, can be arranged around the inner aerator in an outer ring.
  • the jet regulator has a laminar jet regulator section arranged in the area of the outlet opening, which is designed to output the water flow as a laminar jet.
  • a laminar jet regulator which can be used here in combination with the cyclone design explained, is well known for conventional fittings.
  • Such a laminar jet regulator section can be formed, for example, by a large number of flow channels arranged next to one another and running in the axial direction. The laminar water jet flows out through this section on the outlet side without any noticeable pressure, so that the water does not splash.
  • Other configurations for a laminar aerator such as a grid or screen arrangement, orifice plate arrangement or the like, are equally contemplated for the laminar aerator portion.
  • the guide section has a plurality of longitudinal ribs which are arranged on the inner wall of the housing and preferably widen in their radial extent in the direction of flow. A gradual deceleration of the rotational movement of the water flow takes place through these longitudinal ribs and this is guided in the axial direction, following the course of the ribs, preferably up to the laminar jet regulator section.
  • the relaxation zone is preferably designed as a free zone in which the rotationally accelerated water flow can flow along the inner wall of the housing under the effect of centrifugal force. It is also possible, of course, for the named ribs to extend from the following guide section, with a further narrowing of their radial extent, into the relaxation zone. In this case, the water flow could not flow completely along the inner wall of the housing and would already be slowed down slightly in the relaxation zone in the edge area - the function of the aerator and especially the relaxation zone, in which a cyclone flow can develop, would still be given.
  • a gas discharge pipe opens into the free zone of the jet regulator.
  • the gas discharge pipe can, for example, run in the axial direction centrally through the jet regulator up to the outlet opening, so that the water vapor produced is axially centered in the area the outlet opening of the aerator, while the water jet flows out in an outer ring area of the outlet opening.
  • the gas discharge pipe can also run transversely through the relaxation zone to the inner wall of the housing and from there in the axial direction to the outlet direction.
  • the water vapor is emitted in an edge area of the aerator.
  • one or more gas discharge channels are provided which run radially in the direction of the inner wall of the housing and from there along or within the inner wall of the housing to the outlet opening.
  • the water vapor produced is first (with or without an axial gas discharge pipe) directed upwards against the direction of flow of the water jet and from there at the edge of the jet regulator to its outlet opening.
  • the swirl generation section can be formed by at least one flow channel running essentially in the shape of a helical line.
  • the water flow When flowing through the helical flow channel, the water flow is rotationally accelerated. Relaxation takes place when exiting the swirl generation section. Due to the twist in the water flow created by the helical shape, a cyclone flow is created in the area of the inner wall of the aerator, while the resulting gas is pushed inwards.
  • the swirl generation section can also be formed by a plurality of guide vanes running in the shape of a helical line. Through this, a cyclonic flow of the water jet can be generated in a similar way.
  • the aerator described above is used in a fitting for dispensing boiling water and/or water containing CO 2 .
  • the aerator can be used in fittings with different water dispensing functions - so-called functional water.
  • Such a valve can be electronically controlled, for example, optionally normal mixed water, boiling water, CO 2 -enriched water or filtered, chilled water, optionally also water enriched with aroma additives.
  • the present invention also relates to a fitting for dispensing boiling water and/or water containing CO 2 with an outlet and a mouthpiece arranged on the outlet, with an aerator of the type according to the invention being inserted into the mouthpiece.
  • the faucet can be designed for the selective dispensing of boiling water and mixed water, with the outlet having an inner flow path for the boiling water and an outer flow path running concentrically around the inner flow path, and with the mouthpiece as the first, inner
  • a jet regulator accommodates a jet regulator of the type according to the invention in such a way that it is in fluid-conducting and sealed connection with the inner flow path compared to the outer flow path.
  • the mouthpiece can in particular have an outer, second jet regulator concentrically around the inner, first jet regulator, which is arranged annularly around the first jet regulator and which is in fluid-conducting connection with the outer flow path and sealed with respect to the inner flow path.
  • the inner, first jet regulator protrudes downwards beyond the outer, second jet regulator, for example by an overhang of 2 to 6 mm.
  • This constructive measure ensures that no boiling water can get from the inner flow path into the outer flow path and remain there. There is therefore no risk that a user could scald himself when dispensing normal mixed water if boiling water had just been drawn off.
  • the flow paths for process water and boiling water can also be arranged side by side. This results in a double outlet with two parallel flow paths.
  • the jet regulator 1 shown comprises a cylindrical housing 2 with an inlet opening 3 and an outlet opening 4. In the area of the inlet opening 3 there is a collar 5, which serves to mount the jet regulator 1. In the A laminar jet regulator section 10 can be seen in the area of the outlet opening 4 in the form of a grid-like arrangement.
  • the internal structure of the jet regulator 1 is shown in more detail in the sectional view of FIG.
  • a swirl generation section 7 with a total of four flow channels 7a, 7b, 7c, 7d arranged in the form of a multiple helix and running helically, each rotating by 180°, i.e. half a thread turn, along the inner wall of the cylindrical Aerator housing 2 run.
  • the inlet opening is closed in the area of the swirl generation section 7, so that the water flow has to flow through the four flow channels 7a to 7d and is rotationally accelerated in the process.
  • a relaxation zone 8 within the cylindrical housing 2, which is also referred to below as the free zone.
  • the pressurized flow of liquid expands.
  • the water stream flows along the inner wall of the cylindrical housing 2 under the effect of centrifugal force. A cyclone flow is formed, so that water vapor escaping during expansion is pressed inwards into the center of the free zone 8 .
  • a guide section 9 adjoins the free zone 8 in the axial direction, in which the rotational movement of the water flow is braked and this is guided in the longitudinal direction.
  • the guide zone 9 is characterized by a plurality of longitudinal ribs 9a arranged on the inner wall of the housing, which extend in the radial direction and whose width, measured in the radial direction, increases in the axial direction towards the outlet opening 4 .
  • the longitudinal ribs 9a thus represent an increasing obstacle in the axial direction for the rotational movement of the water flow, as a result of which it is slowed down and guided in the longitudinal direction.
  • the longitudinal ribs 9a end at an annular connecting web 9b, which leaves free and encloses an inner area.
  • This inner area serves to allow the water gas formed in the free zone 8 and pressed inwards to escape downwards in the direction of the outlet opening 4 .
  • the guided by the guide portion 9 in the longitudinal direction water flow flows through the Annular space between the annular connecting piece 9b and the inner wall of the housing.
  • the guide section is followed by the laminar jet regulator section 10, which has a plurality of flow channels 10a running in the axial direction, which are separated from one another by separating webs 10b running in the form of jets and in a circle.
  • the water flow passes through the radially outer flow channels 10a, while the pressurized water gas/steam exits primarily through a central channel 10c.
  • the jet regulator 1 has a swirl generation section 7 with a plurality of helical flow channels 7a to 7d and a free zone 8 adjoining the swirl generation section 7, in which the pressurized liquid expands.
  • the guide section 9 with the longitudinal ribs 9a adjoins the free zone 8, as does the laminar jet regulator section 10 with its flow channels 10a running in the axial direction.
  • a gas discharge pipe 11 is additionally provided, which opens into the free zone 8 . Gas/steam escaping in the free zone can be discharged in a controlled manner through this gas discharge pipe 11, which runs centrally in the axial direction up to the outlet opening 4.
  • the separated gas can be discharged more quickly via the gas discharge pipe, and as a result the large increase in volume when the water evaporates can be discharged very efficiently without accelerating the fluid. This reduces a splash of water which could eventually be expelled together with the gas escaping under pressure.
  • a third embodiment is shown, in which, in contrast to the second embodiment, the gas discharge pipe ending in the free zone 8 branches into three sub-pipes 11a, 11b, 11c, which run across the free zone 8 to the inner wall of the housing and from there along the inner wall of the housing in extend in the axial direction up to the outlet opening 4 .
  • the pressurized gas is not ejected centrally from the outlet opening 4 of the jet regulator, but through three separate gas outlet openings arranged in the edge region of the jet regulator.
  • a fourth embodiment is shown.
  • the otherwise cylindrical housing 2 has a stepped shape instead of a collar 5, with an upper area 2a with an enlarged diameter, which tapered in a stage 2b.
  • the stepped shape is used here instead of a collar 5 as in the previous exemplary embodiments for mounting the aerator 1.
  • FIG. 9 An embodiment of a multifunctional fitting is in figure 9 played back.
  • the faucet 20 shown there has a faucet body 21 with an integrated mixing valve, which is actuated via an operating lever 22 attached to the side of the faucet body 21 in the manner of a single-lever mixer, in order to dispense cold, warm or mixed water.
  • On the opposite side of the fitting housing 21 there is another operating element 23 which is designed as an electric rotary/tip switch. This can be used to control other functions of the faucet 20, such as the dispensing of boiling water from a separate boiling water heater connected to the faucet, the dispensing of chilled and/or enriched with CO 2 water or the dispensing of filtered drinking water.
  • the fitting body 21 is followed by an outlet 24 at the top, which runs in an arc up to a mouthpiece 25 .
  • Both mixed water and "functional water” such as some boiling water or CO 2 -enriched water are dispensed via the outlet 24 .
  • the outlet has two coaxially arranged flow paths 26, 27, namely as in figure 10 shown an inner flow path 26 for "functional water” and an outer flow path 27 for normal industrial or mixed water.
  • the inner flow path 26 is formed by an inner pipe or hose 28 running inside the outlet 24 .
  • the inner jet regulator 1 is fluidly connected to the first flow path 26 or the inner tube 28 .
  • the connection 30 between the inner tube 28 and the aerator 1 can be implemented here, for example, by a screw connection or a crimped connection.
  • the inner jet regulator 1 is shown only schematically, but is provided with a swirl generation section 7, a relaxation zone 8 and a guide section 9 in the previously explained design.
  • the outer, annularly arranged around the inner jet regulator 1 outer jet regulator 29 is fluidly connected to the outer flow path 27 and is thus flowed through the single-lever mixer 22 when service water or mixed water is dispensed.
  • the inner aerator 1 protrudes a few millimeters below the mouthpiece 25. This prevents boiling water from getting from the inner flow path 26 into the outer flow path 27 and possibly remaining there. There is therefore no risk of scalding if a user wants to wash his hands with mixed water, for example after drawing off boiling water.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Nozzles (AREA)
EP20181851.5A 2019-06-27 2020-06-24 Strahlregler Active EP3757301B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019117381.7A DE102019117381A1 (de) 2019-06-27 2019-06-27 Strahlregler

Publications (3)

Publication Number Publication Date
EP3757301A1 EP3757301A1 (de) 2020-12-30
EP3757301B1 true EP3757301B1 (de) 2023-06-07
EP3757301C0 EP3757301C0 (de) 2023-06-07

Family

ID=71138657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20181851.5A Active EP3757301B1 (de) 2019-06-27 2020-06-24 Strahlregler

Country Status (5)

Country Link
US (1) US11851860B2 (zh)
EP (1) EP3757301B1 (zh)
CN (1) CN112144612B (zh)
AU (1) AU2020203789A1 (zh)
DE (1) DE102019117381A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108543430B (zh) * 2018-07-02 2024-02-02 厦门松霖科技股份有限公司 出水装置
USD906478S1 (en) * 2019-03-08 2020-12-29 Neoperl Gmbh Faucet stream straightener
DE102020108555A1 (de) 2020-03-27 2021-09-30 Grohe Ag Auslaufelement für eine Trinkwasserzapfanlage
USD968566S1 (en) 2021-04-06 2022-11-01 Neoperl Gmbh Faucet stream straightener
CN113601253B (zh) * 2021-07-07 2022-11-11 南京信息职业技术学院 一种构建持续立体冷却区域的降温装置和使用方法
US20230392357A1 (en) * 2022-06-02 2023-12-07 Dynamo Aviation, Inc. Contamination guard for water faucet
WO2024163741A1 (en) * 2023-02-02 2024-08-08 InSinkErator LLC Faucet system and method for dispensing near-boiling water

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
FR813415A (fr) * 1935-09-17 1937-06-01 Junkers & Co Ajutage d'écoulement pour chauffe-liquide
US3275248A (en) * 1964-08-07 1966-09-27 Spraying Systems Co Modified full cone nozzle
US3920187A (en) * 1974-05-24 1975-11-18 Porta Test Mfg Spray head
US4077545A (en) * 1976-09-22 1978-03-07 Emerson Electric Co. Instant hot water dispensing system
CH657403A5 (de) 1981-08-21 1986-08-29 Karrer Weber & Cie Ag Auslaufvorrichtung an einer sanitaerarmatur fuer kalt- und warmwasser.
DE3828111A1 (de) * 1988-08-18 1990-02-22 Broeker Ernst H Armatur zum anschluss an uebliche druckwasserleitungen in haushalten, baedern, hotels oder dergleichen
KR970002860B1 (ko) * 1989-11-21 1997-03-12 도오 또오 기끼 가부시끼가이샤 포말토수장치
DE102005010551B4 (de) * 2005-03-04 2007-05-16 Neoperl Gmbh Sanitäre Funktionseinheit
CN101082221A (zh) * 2006-05-31 2007-12-05 卫凯宏 节水洁具
DE102010012326B4 (de) * 2010-03-23 2015-10-01 Neoperl Gmbh Strahlregler
US9328491B2 (en) * 2010-03-31 2016-05-03 Toto Ltd. Water spouting device
DE202013000860U1 (de) * 2013-01-29 2014-05-05 Neoperl Gmbh Sanitäres Einbauteil und Komponente einer Sanitärarmatur
DE202013002283U1 (de) * 2013-03-11 2014-06-12 Neoperl Gmbh Zerstäuberdüse für einen sanitären Wasserauslauf sowie sanitäre Auslautarmatur mit einem Wasserauslauf
DE102014001818A1 (de) * 2014-02-13 2015-08-13 Grohe Ag Anschlussstück für einen Auslauf einer Sanitärarmatur
DE102017001151B4 (de) * 2017-02-08 2022-07-28 Carbotek Systems GmbH Schankanlage, Zapfhahn dafür, sowie Verfahren zur Herstellung nitrogenisierten Kaffees oder Biers
CN207553225U (zh) * 2017-12-12 2018-06-29 陈燕 具有消声结构的下水器

Also Published As

Publication number Publication date
US11851860B2 (en) 2023-12-26
CN112144612A (zh) 2020-12-29
AU2020203789A1 (en) 2021-01-21
EP3757301A1 (de) 2020-12-30
DE102019117381A1 (de) 2020-12-31
CN112144612B (zh) 2022-02-18
US20200407955A1 (en) 2020-12-31
EP3757301C0 (de) 2023-06-07

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