WO2017111600A1 - Douche - Google Patents

Douche Download PDF

Info

Publication number
WO2017111600A1
WO2017111600A1 PCT/NL2016/050917 NL2016050917W WO2017111600A1 WO 2017111600 A1 WO2017111600 A1 WO 2017111600A1 NL 2016050917 W NL2016050917 W NL 2016050917W WO 2017111600 A1 WO2017111600 A1 WO 2017111600A1
Authority
WO
WIPO (PCT)
Prior art keywords
shower
water
tank
pump
recirculation
Prior art date
Application number
PCT/NL2016/050917
Other languages
English (en)
Inventor
Reitse DE JONG
Coen GREIDANUS
Helmer REILING
Robbert Thomas CÖMPFF
Eric Van Duin
Original Assignee
Hamwells Holding B.V.
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 Hamwells Holding B.V. filed Critical Hamwells Holding B.V.
Priority to US16/064,324 priority Critical patent/US20190003158A1/en
Priority to EP16825920.8A priority patent/EP3394352A1/fr
Publication of WO2017111600A1 publication Critical patent/WO2017111600A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041—Greywater supply systems
    • E03B1/042—Details thereof, e.g. valves or pumps
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041—Greywater supply systems
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K3/00—Baths; Douches; Appurtenances therefor
    • A47K3/28—Showers or bathing douches
    • 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
    • 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
    • E03C1/0408—Water installations especially for showers
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041—Greywater supply systems
    • E03B2001/045—Greywater supply systems using household water

Definitions

  • the present invention relates to a recirculation shower.
  • recirculation showers continuously recirculate water, so large flow rates can be achieved with only limited amounts of water.
  • Recirculation showers typically comprise a water collection reservoir, a shower head and a pump for circulating water between the water collection reservoir and the shower head.
  • Such recirculation showers are mainly used as wellness showers.
  • the wellness showers are combined with a conventional shower, so a user may first wash himself and then, after the spent soapy water has been rinsed away, the user can switch over to the recirculation shower for enjoying the comfort of a wellness shower.
  • WO 2014/206685 An example of such a combined shower system is disclosed in WO 2014/206685. Due to the high circulation rate the recirculated water cools relatively quickly. A thermostatic mixer tab is used to mix the recirculated flow with fresh hot water in order to keep the temperature at a desired level.
  • the object of the invention is to provide a shower system overcoming these problems.
  • the object of the invention is achieved with a
  • recirculation shower comprising a pump for circulating water through the recirculation shower via a circulation flow path, a water tank fluidly connected to an inlet of the pump and positioned at a higher level than the pump, and a fresh water supply for feeding the water tank.
  • the recirculation shower has a shower head and a water collection reservoir arranged to collect water dispensed by the shower head, wherein the pump is arranged to circulate water via the circulation flow path from the water collection reservoir to the shower head.
  • the circulated water is circulated via the water collection reservoir but does not pass the water tank, which is outside the circulation flow path.
  • the water collection reservoir may for example arranged to collect water from a floor of the shower system via a drain, e.g., by gravity, the floor being below the shower head for supporting a user making use of the shower .
  • the fresh water supply may for example be thermostatically controlled. This will ensure that after activation of the pump the recirculation flow will start with a water temperature set by the user.
  • the tank, or the line connecting the tank to the pump, may be provided with a valve.
  • a control unit may be configured to open the valve when the pump is activated and to close the valve once the recirculation flow has reached a set flow rate.
  • the fresh water supply comprises a tap with an outlet at a distance above a maximum water level of the water tank. This isolates the water supply from any water in the tank or anywhere else in the recirculation flow path of the recirculation shower. Such a tap can safely be connected to a public water supply network.
  • the tank may for instance comprise an overflow outlet.
  • An overflow line may be provided between the overflow outlet of the tank and a water collection reservoir fluidly connected to the inlet of the pump.
  • the recirculation shower may have two water tanks fluidly connected to the inlet of the pump, e.g., a cold water tank fed by a cold water supply and a hot water tank fed by a hot water supply.
  • the two tanks may for instance have respective outlet lines connecting to the pump inlet and being provided with proportional valves under the control of a control unit for adjusting the water temperature of water fed to the pump inlet. This way, the two tanks can be used for mixing fresh hot water into the recirculation flow during a recirculation shower bath to keep the water temperature at a level set by a user.
  • the second tank may for example be fed by a hot water supply line while the first tank is fed by a cold water supply line.
  • the two tanks may both comprise an outlet line with a proportional valve. Downstream the proportional valves the two outlet lines may combine to form a single pump feeding line containing a temperature sensor.
  • a control unit can be used to control the proportional valves to minimize the difference between a temperature measured by the sensor and a set value.
  • one or both of the tanks may comprise an overflow outlet, e.g., with an overflow line running to the water collection reservoir.
  • one or both of the two tanks may comprise a float for stopping water supply to the tank if a maximum level is reached.
  • the cold water tank may comprise an overflow outlet, while the hot water tank comprises a float.
  • An alternative system for mixing fresh hot water into the recirculation flow may comprise a separate tap spaced from the recirculation flow path.
  • a control unit may control water temperature and/or flow rate of a water flow dispensed from the tap, in response to a signal received from one or more temperature sensors in the recirculation flow path.
  • the invention also relates to a shower system comprising a conventional shower with hot and cold water supply lines and a recirculation shower as disclosed above, the recirculation shower defining a circulation flow path isolated from hot and cold water supply lines of the conventional shower.
  • the shower system may comprise a user interface allowing a user to switch between a recirculation mode and a conventional shower mode.
  • the user interface may also enable him to control the temperature and/or flow rate of the shower water dispensed by the conventional shower and/or the recirculation shower.
  • Figure 1 schematically shows a first embodiment of a shower
  • Figure 2 schematically shows a second embodiment of a shower .
  • FIG. 1 shows a wellness shower system 1.
  • the shower system 1 combines a recirculation shower 2 with a separate conventional shower 3, both having shower heads 4, 5 arranged above a water collection reservoir 6.
  • the water collection reservoir 6 is provided with an overflow outlet (not shown) .
  • a recirculation line 8 fluidly connects the water collection reservoir 6 to the shower head 5 of the recirculation shower 2.
  • a pump 10 is arranged in the recirculation line 8 to circulate water from the water collection reservoir 6 to the shower head 5 of the recirculation shower 2.
  • the water collection reservoir 6 is arranged below a floor 7 of the shower system 1.
  • a drain is provided to guide water from the floor 7 to the water circulation reservoir 6.
  • the shower system 1 comprises a thermostatically
  • the controlled hot and cold water mixing tap 12 connected to a supply line 13 for hot tap water and a supply line 14 for cold tap water.
  • Proportional valves 16 in the supply lines 13, 14 are configured to regulate the flows in the supply lines 13, 14 to obtain tap water of a desired temperature.
  • the tap 12 has an outlet at least 2 cm above the highest possible water level in the water collection reservoir 6, i.e., the water level in the water collection reservoir when the drains are clogged .
  • the tap may be hidden from view, e.g., by a front panel presenting a user interface for user control of the shower.
  • the conventional shower 3 is operatively connected to the public water supply network with hot and cold water supply lines 20, 21 which are strictly separated from the
  • a motorized thermostat 22 allows a user to maintain the shower water at a desired temperature selected via a user interface at the front panel.
  • the shower system 1 further comprises a water tank 28 fluidly connected to an inlet 29 of the pump 10.
  • the water tank 28 is positioned at a higher level than the pump 10 so the inlet 29 of the pump is always under water.
  • a fresh tap water supply 35 feeds the tank via a supply line 36 branched off from a supply 37 line feeding the conventional shower 3.
  • the feeding line 36 is downstream the motorized thermostat 22 so the tank 28 is fed with water of the same temperature as the water dispensed by the conventional shower 3.
  • the tank 28 is provided with an overflow outlet 39 connected to an
  • the user interface communicates with a control unit allowing a user to switch between a circulation flow via the recirculation shower 2 and a drained shower flow via the conventional shower 3.
  • the wellness shower system 1 further comprises a drain 24 and a controllable drain valve 25 for selectively closing or opening the drain 24.
  • the control unit activates the drain valve 25 to open the drain 24.
  • the user can wash himself with soap and the spent soapy water is drained via the open drain 24.
  • the tank 28 is fed with fresh tap water of the same temperature as the water dispensed by the conventional shower 3.
  • excess water will flow via the overflow outlet 39 and the water collection reservoir 6 to the drain 24.
  • the user may switch over from the conventional shower 3 to the recirculation shower 2 via the user interface.
  • the control unit activates the drain valve 25 to close the drain 24 and opens the mixing tap 12, but does not yet switch off the conventional shower 3.
  • Water is collected in the water collection reservoir 6 until a level sensor 27 in the water collection reservoir 6 detects that the water lever in the water collection reservoir 6 has reached a desired minimum level. At that moment the pump 10 is activated and the
  • circulation flow starts directly. After the circulation flow reaches a desired flow rate, set by the user, a control unit switches off the conventional shower 3 and close off the line between the tank 28 and the pump inlet 29. The shower bath is not interrupted during switching from the conventional shower 3 to the recirculation shower 2.
  • the user can select and set the water temperature via the user interface. During circulation flow the recirculated water tends to cool down. To maintain the water temperature at the selected level, the tap 12 mixes hot water into the water collected in the water collection reservoir 6, e.g.,
  • a temperature sensor 18 is provided in the recirculation line 8. The flow rate and/or temperature of the water from the tap 12 is adjusted in response to signals from the temperature sensor 18.
  • a filter 31 in the water collection reservoir filters water entering the inlet 29 of the pump 10.
  • a UV-source 32 is integrated in the circulation line 8 to clean the circulated water from microorganisms, for as far as necessary.
  • FIG. 2 shows an embodiment of a shower system 101 having two water tanks 132, 133 instead of one. Just like the
  • the shower system 101 combines a recirculation shower 102 with a separate conventional shower 103.
  • the shower system 101 comprises a water collection reservoir 104 with an overflow outlet (not shown) .
  • recirculation line 108 fluidly connects the water collection reservoir 106 to the shower head 105 of the recirculation shower 102.
  • a pump 110 is arranged in the recirculation line 108 to circulate water from the water collection reservoir 106 to the shower head 105 of the recirculation shower 102.
  • the conventional shower 103 is operatively connected to the public water supply network with hot and cold water supply lines 120, 121 which are strictly separated from the
  • a motorized thermostat 122 allows a user to maintain the shower water temperature at a desired level selected via a user interface at the front panel.
  • Two water tanks 132, 133 are fluidly connected to an inlet 129 of the pump 110. Both water tanks 128 are positioned at a higher level than the pump 110.
  • the tanks 132, 133 include a cold water tank 132 and a hot water tank 133.
  • the cold water tank 132 is fed by a cold tap water supply line 136.
  • the hot water tank 133 is fed by a hot tap water supply line 137.
  • the cold water tank 132 is provided with an overflow outlet 139 connected to an overflow line 140 leading to the water
  • the hot water tank 133 is provided with a float 138 preventing overflow of the hot water tank 133.
  • Both tanks 132, 133 comprise an outlet line 141 provided with a proportional valve 142. Downstream the proportional valves 142 the two outlet lines 141 join to form a single line 143 connecting to the inlet 129 of the pump 110.
  • the proportional valves 142 are controlled by a control unit (not shown) .
  • the pump feeding line 143 contains a temperature sensor 144. If the temperature measured by the sensor 144 deviates from a set temperature, the control unit controls the proportional valves 142 to adjust the temperature of the water fed to the pump feeding line 143. In this configuration, a separate tap for the supply of fresh hot water is not needed anymore.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)

Abstract

L'invention concerne une douche à recirculation (2, 102) comprenant une pompe (10, 110) permettant de faire circuler l'eau à travers la douche à recirculation (2, 102) et un réservoir d'eau (28, 132, 133) en communication fluidique avec une entrée (29, 129) de la pompe. Le réservoir est positionné à un niveau plus élevé que la pompe. Une alimentation en eau douce (35, 132) alimente le réservoir. Éventuellement, la douche peut comprendre deux tels réservoirs, un pour l'eau chaude et l'autre pour l'eau froide, afin de mélanger l'eau à une température souhaitée dans le flux de douche remis en circulation.
PCT/NL2016/050917 2015-12-23 2016-12-23 Douche WO2017111600A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/064,324 US20190003158A1 (en) 2015-12-23 2016-12-23 Shower
EP16825920.8A EP3394352A1 (fr) 2015-12-23 2016-12-23 Douche

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2016021A NL2016021B1 (en) 2015-12-23 2015-12-23 Shower.
NL2016021 2015-12-23

Publications (1)

Publication Number Publication Date
WO2017111600A1 true WO2017111600A1 (fr) 2017-06-29

Family

ID=55532267

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2016/050917 WO2017111600A1 (fr) 2015-12-23 2016-12-23 Douche

Country Status (4)

Country Link
US (1) US20190003158A1 (fr)
EP (1) EP3394352A1 (fr)
NL (1) NL2016021B1 (fr)
WO (1) WO2017111600A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019191789A3 (fr) * 2018-03-26 2020-07-02 Mare Jeremias Jesajas Jacobus Unité de lavage
EP3595499A4 (fr) * 2017-03-15 2021-01-20 Orbital Systems AB Procédé de réglage individuel de la température d'eau de sortie dans un dispositif comprenant de multiples sorties
WO2024068917A1 (fr) 2022-09-30 2024-04-04 Ilya Douche cyclique avec deux circuits indépendants chauffés

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3595500B1 (fr) * 2017-03-15 2023-06-07 Orbital Systems AB Système de recirculation d'eau comprenant un agencement de détermination d'eau de référence et procédé de réglage de température de l'eau dans un tel système
US10883258B2 (en) * 2017-04-27 2021-01-05 Orbital Systems Ab Water recirculation device and method for adjusting a water temperature in a water recirculating device
CL2019000866A1 (es) 2019-03-30 2019-10-18 Gustavo Alejandro Pallauta Perez Dispositivo recirculador de agua, contador de litros y regulador de temperatura para ducha; y procedimiento para obtener dicho dispositivo.
US20220298046A1 (en) * 2021-03-22 2022-09-22 Ruth Weaver Bath Water Recycling System
DE102021132418A1 (de) 2021-12-09 2023-06-15 Grohe Ag Sanitäreinrichtung mit zumindest einer Abgabeeinrichtung für eine Flüssigkeit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293654A (en) * 1991-11-22 1994-03-15 Aktiebolaget Electrolux Energy and water saving shower assembly
WO2006131743A1 (fr) * 2005-06-07 2006-12-14 Royal College Of Art Système de douche recyclant l’eau
US20110289672A1 (en) * 2010-05-28 2011-12-01 Douglas Patrick Cummings System and method for showering with fixed parameter water usage
WO2014206685A1 (fr) * 2013-06-27 2014-12-31 Betgem B.V. Douche confort

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293654A (en) * 1991-11-22 1994-03-15 Aktiebolaget Electrolux Energy and water saving shower assembly
WO2006131743A1 (fr) * 2005-06-07 2006-12-14 Royal College Of Art Système de douche recyclant l’eau
US20110289672A1 (en) * 2010-05-28 2011-12-01 Douglas Patrick Cummings System and method for showering with fixed parameter water usage
WO2014206685A1 (fr) * 2013-06-27 2014-12-31 Betgem B.V. Douche confort

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3595499A4 (fr) * 2017-03-15 2021-01-20 Orbital Systems AB Procédé de réglage individuel de la température d'eau de sortie dans un dispositif comprenant de multiples sorties
WO2019191789A3 (fr) * 2018-03-26 2020-07-02 Mare Jeremias Jesajas Jacobus Unité de lavage
US11680389B2 (en) 2018-03-26 2023-06-20 Jeremias Jesajas Jacobus Mare Washing unit
WO2024068917A1 (fr) 2022-09-30 2024-04-04 Ilya Douche cyclique avec deux circuits indépendants chauffés
FR3140385A1 (fr) 2022-09-30 2024-04-05 Ilya Douche cyclique avec deux circuits indépendants chauffés

Also Published As

Publication number Publication date
NL2016021B1 (en) 2017-07-05
EP3394352A1 (fr) 2018-10-31
US20190003158A1 (en) 2019-01-03

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