EP2962612A1 - Dispositif de douche avec recirculation d'eau et section de base pour un tel dispositif - Google Patents

Dispositif de douche avec recirculation d'eau et section de base pour un tel dispositif Download PDF

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Publication number
EP2962612A1
EP2962612A1 EP14175247.7A EP14175247A EP2962612A1 EP 2962612 A1 EP2962612 A1 EP 2962612A1 EP 14175247 A EP14175247 A EP 14175247A EP 2962612 A1 EP2962612 A1 EP 2962612A1
Authority
EP
European Patent Office
Prior art keywords
water
reservoir
pump
shower device
fluid channel
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.)
Withdrawn
Application number
EP14175247.7A
Other languages
German (de)
English (en)
Inventor
René Henri Betgem
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.)
Betgem Holding BV
Original Assignee
Betgem Holding BV
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 Betgem Holding BV filed Critical Betgem Holding BV
Priority to EP14175247.7A priority Critical patent/EP2962612A1/fr
Publication of EP2962612A1 publication Critical patent/EP2962612A1/fr
Withdrawn legal-status Critical Current

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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
    • E03C1/04—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
    • 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
    • E03B1/048—Systems for collecting not used fresh 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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0407—Floor drains for indoor use
    • E03F5/0408—Floor drains for indoor use specially adapted for showers

Definitions

  • the invention relates to a shower device for recirculating water and a base section for such a shower device.
  • the invention relates to a shower device with water recirculation, comprising:
  • Such a device allows for a reduced consumption of water, due to the fact that water coming out of the water outlet is collected in the reservoir and then fed again to the water outlet, hence the water is recirculated instead of poored down the drain after a single pass through the water outlet.
  • some fresh water is also passed through the water outlet, in order to increase the temperature of the water mixture and/or to maintain sufficiently clean water; the water cools down during its journey from water outlet to the reservoir, since it then has a large surface area that may exchange heat with the air below the water outlet. The water also becomes contaminated on its journey.
  • the fresh water may be purely hot water or any mixture of hot and cold water; in the known device it is a temperature-regulated mixture.
  • the shower device according to the preamble offers an improvement to the art, and has reduced water and energy consumption due to the recirculation of water, it has appeared that safety risks are still inherent to the design.
  • the invention has as a goal to provide a shower device as described above, that offers improvements with respect to safety.
  • Another, although related, advantage is that the absence of valves in the pressure side of the pump take away the risk of failure of such valves and thus also takes away the risk of sudden powerful exhaust of water through the water outlet, and thus prevents the user to be scared by such an exhaust, even when it may be harmless in itself.
  • An additional advantage of the shower device according to the invention is that it has further reduced energy consumption, due to the fact that no thermostat valve needs to be present in the pressure pipe between the pump and water outlet, where a relatively high pressure is maintained when the pump is in operation.
  • the absence of a thermostat valve or other flow restriction device in the pressure side takes away the pressure losses in such devices, leaving only the relatively small pressure losses in the piping between the pump and the water outlet.
  • This not only reduces energy consumption, but also allows for a pump operating on a low voltage, e.g. 24 Volts, instead of the usual 230 Volt AC of the main power supply.
  • a low voltage pump allows for a safer shower device design by a reduced risk of exposure of the user to the mains power voltage.
  • a further advantage is that the construction of the shower device according to the invention is simplified, hence makes it possible to obtain a reduction in component costs and as a result also a reduction in the total costs of production.
  • This simplification lies in the fact that valves are no longer needed in the pressure side of the pump, but they may be present in the suction side of the pump, and as a result they do not need to be capable of handling high pressures.
  • the reservoir is provided with an outlet valve, allowing it to be filled with, advantageously hot, water during use of the shower, and to be emptied after use of the shower. Additionally, it may have an overflow, to prevent the support surface from being flooded when the valve is closed. Also preferably, the reservoir is open at its top side or partially open in order to allow a user to inspect visually with the bare eyes if the reservoir is clean.
  • the first fluid channel is provided with a raised passage section for liquid of which the lowest side lies higher than the lowest side of the pump inlet, and the supply line for providing fresh water to the shower device is connected to the suction side of the pump between said raised passage section and the pump inlet.
  • Such a raised passage section prevents the fresh water from leaking away to the reservoir, also during temporarily stops of the pump or reduced speed of the pump. It also allows for a smoother starting operation of the pump, because the area near the pump inlet will be flooded as soon as the supply of water through the supply line is started.
  • a supply line ends at the reservoir to allow fresh water to flow into the reservoir.
  • the pump may be connected for fluid communication to the reservoir only via the first fluid channel and the first fluid channel may have no connections other than to the pump and to the reservoir.
  • the first fluid channel from reservoir to pump need not have a connection to a fresh water supply, and hence needs no valves, and as a result has a far reduced risk of grey water remaining in the first fluid channel or in lines connected to it. This means that also in the suction side of the pump the risk of contamination, e.g. by bacterial growth, is reduced.
  • the pump may be a self-priming pump, in order to allow for this configuration.
  • the reservoir may be provided with a removable enclosure that is arranged to cover an entrance of the first fluid channel and may be provided with one or more openings, the openings being horizontally elongated or arranged in a horizontally elongated pattern, for passing water from the reservoir to the suction opening when the enclosure is mounted, and the enclosure may be provided with a filter, preferably a micro filter, for filtering the water before it flows into the first channel.
  • the filter may be removable.
  • this enclosure or at least the horizontal elongated opening or opening pattern thereof, for passing water from the reservoir to the suction opening, which horizontal elongated opening or pattern could also be mounted in the reservoir itself without the presence of an enclosure, it also becomes possible to use a reservoir having only a small height and hence a small content of water, in particular only approximately 3 liter, when in use, and then 1-2 liter fresh water may be added per minute, while providing a water flow through the water outlet of between 5-25 liter per minute.
  • a temperature control unit may be provided, with a temperature sensor for measuring the water temperature anywhere between a supply line for fresh water and the water outlet, and the temperature control unit is arranged to control at least one of a flow rate and temperature of fresh water supplied by (one of) the supply line(s).
  • the shower device comprises a drain valve arranged for draining the pump, and the pump is arranged higher than the lowest support surface level.
  • the presence of the drain valve and the mounting height of the pump allow for fully draining the pump when the shower device is not in use, and thus for a further reduction of the risk of contamination of the piping of the shower device.
  • the drain valve may be arranged in the pump housing, but also in the first channel or in the press line near the pump housing, or even in a separate pipe, as long as it is fit for the purpose of draining.
  • the shower device comprises a temperature sensor between the press side of the pump and the water outlet, the temperature sensor being connected to the thermostat and a water valve arranged in the supply line for the control of the water temperature towards a target temperature.
  • the water temperature is controllable, without valves being necessary in the piping at the press side of the pump.
  • the invention also relates to a base section for a shower device with water recirculation, wherein the shower device comprises
  • Such a shower device allows for the recirculation of shower water, tends to have a base section that is relatively high, and therefore leaves less space for a person standing upright and is more difficult to access for disabled persons.
  • the invention has as a goal to provide a base section according to the preamble of claim 8 that solves or reduces this disadvantage by allowing for a reduced height of that section.
  • a reduced height of the base section, and in particular of the support surface above the lowest part of the base section is made possible because the outlet opening is provided in a side wall part of the reservoir.
  • the support surface and reservoir are mutually adjacent, since this further reduces the amount of space required.
  • the valve is moveable between a first position and a second position, the first and second positions arranged at identical horizontal levels.
  • This may for instance be realized by a valve that is plane and moves in its own plane, or by a valve that moves perpendicular to its own plane. By such movement, the valve allows for a low construction height of the reservoir.
  • the support has an overflow opening provided in the reservoir, at a level higher than the top level of the valve.
  • a siphon may be provided for preventing odorous gases to escape from the outlet opening.
  • the siphon may comprise a siphon fluid channel with a supply side and a discharge side, and a lowered part of the siphon fluid channel comprises a liquid basin between said supply side and discharge side, the basin being dimensioned and oriented to hold an amount of liquid to block the cross section of the siphon fluid channel in a gas tight manner, and wherein the siphon fluid channel is oriented with its supply side and discharge side to obtain a horizontal flow through both these sides
  • Such a siphon allows for a limited height of the base section, even when dealing with tolerances and the required angle with respect to the horizontal as needed for obtaining a water flow when the siphon is in use.
  • the base section according may comprise
  • an extension section may be arranged next to the second one of the walls, which extension section comprises a basin-shaped section provided with a drain opening in the side thereof.
  • connection part On the side of the drain opening a connection part may be provided, arranged for connecting a drainage tube thereto.
  • Such an extension section offers the well-known and demanded function of a siphon while still allowing for a very limited height of the base section.
  • the siphon may be adjacent to the valve and possible overflow, the first one of the walls of the siphon being directly below or next to the valve.
  • a shower device 1 comprising a base section 2 comprising a support surface 3 and a reservoir 4.
  • a pillar rests on the base section 2 and supports a water outlet 5 and hides and protects the components and piping of the shower device 1.
  • the water outlet 5 is arranged to spray water over a person (not shown) standing on the support surface 3 for taking a shower.
  • the device 1 will generally include a conventional fresh water hand shower installed along the pillar too.
  • the reservoir 4 is open on its top side and lies entirely lower than the level of the lowest point of the support surface 2, in order to allow it to collect water flowing from the support surface 2, which support surface 2 is slightly sloped downward in the direction of the reservoir, in order to force water to flow towards the reservoir.
  • the reservoir 4 is partially shown; only one side wall 7 of its four side walls is visible.
  • a pump 8 is mounted having a suction side 9 and a press side 10, and at its suction side 9 provided with a first fluid channel 11 for taking in water from the reservoir 4 via a small opening 6 under a removable enclosure 25.
  • the water outlet 5 is connected to the press side 10 of the pump 8 via a second fluid channel 12.
  • a -first- fluid supply line 13 for providing fresh warm, temperature controlled water (by the thermostat valve 14) is connected to the first fluid channel 11, and hence to the suction side 9 of the pump 8.
  • the second fluid channel 12 contains no valves of thermostats. Only a UV light 15 for disinfecting the water that goes towards the water outlet 5 may be present. As a result, no grey water will enter the fresh water supply line, or any other line.
  • a second fluid supply line 16 is present, providing hot water, via a second thermostat valve 17, to the reservoir 4 and hence to the first fluid channel 11 and subsequently to the pump 8 and the water outlet 5.
  • the second thermostat valve 17 is controlled, i.e. opened and closed in order to raise the temperature of the water in the water outlet 5 to a variable degree, with the aid of the temperature sensor 18 arranged in the second fluid channel 12, between the pump 8 and the water outlet 5, and a user interface 19 that allows for setting a desired water temperature of the water outlet 5.
  • the second fluid supply line 16 helps to obtain a disinfected shower device 1, especially it helps in keeping the reservoir 4 disinfected.
  • the fact that the reservoir 4 in this example has a small water volume, of 3 liter, also helps in keeping the reservoir 4 disinfected, since the reservoir is flushed more often in that manner.
  • the first fluid channel 11 is provided with a raised passage section 20, that has a lowest side that lies higher than the lowest side of the pump inlet 9, and the supply line 13 for providing fresh water to the shower device is connected to the suction side of the pump, between said raised passage section 20 and the pump inlet 9.
  • the pump will be flooded first as soon as fresh water is allowed to enter the supply line 13, thus allowing for a smooth and self-starting operation of the pump 8, even when it is already self-priming.
  • the pump 8 is provided with a drain valve 21 that is opened by control electronics (not shown) when the pump 8 and the shower device 1 are switched off. After the pump 8 is filled with fresh water the reservoir 4 is filled through section 20 and enclosure 25. When the reservoir 4 is filled to the level of an overflow opening 33 the pump 8 will start automatically to pump water to outlet 5.
  • FIG 3 a part of the base section 2 is shown with the support surface 3 left away, in order to show its reservoir 4 clearly.
  • an outlet opening 22 of channel 11 (see Figure 4 ) is covered by a filter screen 23' under the removed enclosure 25. Also the filter 23' is removable for cleaning or replacement purposes.
  • the first fluid channel 11 ends with the second fluid supply line 16, as also visible in Figure 4 .
  • a reservoir drain 23 with a siphon 24 is present, as is shown in Figures 5a and 5b .
  • the enclosure(s) 25 fit(s) on the side wall 27 of the reservoir 4 by means of a V-shaped groove on that side wall 27 that allows it to slide upwards for removal.
  • FIGS 5a and 5b the reservoir drain 23 with siphon 24 is shown.
  • the reservoir drain 23 comprises a box 28 that is provided with an outlet opening 29. Behind the outlet opening 29, a valve plate 30 is retractably mounted on an electrical actuator 31 and arranged to have a closed position, in which it closes the outlet opening 29 and an open position, in which it is retracted and leaves outlet opening 29 open in order to allow water to flow out of the reservoir 4 through the outlet opening 29 through the siphon 24 to the drain pipe 32 and dispose of the water.
  • the actuator 31 may be manually operated, instead of electrically.
  • the outlet opening 29 is provided in a side wall part of the reservoir with the lowest edge 34, or part, of the outlet opening 29 at the same vertical level as the lowest part of the reservoir 4 inside its bottom 35 adjacent to it (but not shown in Figure 5a ). Due to this position of the outlet opening 29 with the valve plate 30, and the horizontal movement of the valve plate 30, it becomes possible to obtain a reservoir drain 23 that is desirably very low, and thus also a base section 2 that has a reduced height.
  • the siphon 24 comprises a siphon bottom section 36 delimited by four siphon walls 37-40.
  • the siphon wall 39 has an upper edge at a first level to allow water to flow over it, into the siphon, and the siphon wall 40 has an upper edge at a second level, which is slightly lower than the first level, to allow water to flow out of the siphon.
  • the siphon 23 also has a partition wall 41 arranged between the siphon walls 39 and 40 that has a lower edge that lies lower than the upper edges of siphon walls 39 and 40, hence lower than the lowest of the first and second level.
  • siphon fluid channel with a supply side near siphon wall 39 and a discharge side at the siphon wall 40.
  • a lowered part of the siphon fluid channel comprises a liquid basin between the siphon bottom section 36 and the siphon walls 37-40.
  • the basin serves to hold an amount of water and to block the cross section of the siphon fluid channel in a gas tight manner by means of the water.
  • the siphon fluid channel is oriented with its supply side and discharge side to obtain a horizontal flow through both these sides, due to the fact that the siphon bottom section 36 is horizontally mounted in the base section 2 of the shower device 1.
  • an extension section 41 is arranged next to the second one of the walls, which extension section 41 is basin-shaped and is provided with a drain opening 42 in the side thereof to which the drain pipe 32 is connected. Because the drain pipe 32 and the extension section 41 are located next to the siphon 24, these components take up only little height.
  • FIG 5a water is shown in the basin.
  • Figure 5b water is shown with a higher level (schematically drawn as a box), in the reservoir 4, behind the outlet opening 29 and in the siphon 24.
  • the valve plate 30 is closed in Figures 2 and 5b , and the water flows over the overflow opening 33 and also passes through the siphon 24 to the extension section 41 and through the drain opening 42 to the drain pipe 32.
  • the pump 8 is self-priming, of a well-known impeller type operating at 24 Volts, and the first fluid channel 11 has no other connections than to the reservoir 4 at one end and to the pump 8 at the other end. This layout is highly safe with respect to contamination.
  • the siphon 24 in combination with the reservoir 4, part of the base section 2 in this example may be applied together in other shower devices with or without recirculation, and still offer the advantage of a low construction height of these components and hence a low construction height of a base section.

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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)
  • Bathtubs, Showers, And Their Attachments (AREA)
EP14175247.7A 2014-07-01 2014-07-01 Dispositif de douche avec recirculation d'eau et section de base pour un tel dispositif Withdrawn EP2962612A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14175247.7A EP2962612A1 (fr) 2014-07-01 2014-07-01 Dispositif de douche avec recirculation d'eau et section de base pour un tel dispositif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14175247.7A EP2962612A1 (fr) 2014-07-01 2014-07-01 Dispositif de douche avec recirculation d'eau et section de base pour un tel dispositif

Publications (1)

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EP2962612A1 true EP2962612A1 (fr) 2016-01-06

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EP14175247.7A Withdrawn EP2962612A1 (fr) 2014-07-01 2014-07-01 Dispositif de douche avec recirculation d'eau et section de base pour un tel dispositif

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677321A (zh) * 2017-03-07 2017-05-17 宁波翔龙金属制品有限公司 一种水资源循环利用地漏
NL2017503B1 (en) * 2016-09-21 2018-03-29 Hamwells Holding B V Shower
WO2018056815A1 (fr) * 2016-09-22 2018-03-29 Hamwells Holding Bv Système de douche à recirculation
EP3441532A1 (fr) * 2017-08-11 2019-02-13 Grohe AG Douche à régime de réchauffage amélioré, procédé de mise en place de ladite douche et son utilisation
WO2021262072A1 (fr) * 2020-06-26 2021-12-30 Orbital Systems Ab Système de mesure de la qualité de l'eau et système de recirculation le comprenant
WO2023215971A1 (fr) * 2022-05-10 2023-11-16 Pledge Resource Managers Inc. Dba Rainstick Shower Bassin de captage destiné à être utilisé dans un système de douche à recirculation
DE102022127265A1 (de) 2022-10-18 2024-04-18 Grohe Ag Verfahren zur Reinigung einer Recycling-Dusche
DE102022130741A1 (de) 2022-11-21 2024-05-23 Grohe Ag Ablaufeinrichtung einer Sanitäreinrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2248390A (en) * 1990-10-03 1992-04-08 David Charles Oakley Shower unit
US5209254A (en) * 1991-10-29 1993-05-11 Slomo Ancselovics Water and sewerage system for construction, and protection for the same
US20020158138A1 (en) * 2001-04-30 2002-10-31 David Yekutiely Method and appratus for aromatherapy shower
FR2907145A1 (fr) * 2006-10-13 2008-04-18 David Forien Dispositif d'economie d'eau sanitaire par recirculation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2248390A (en) * 1990-10-03 1992-04-08 David Charles Oakley Shower unit
US5209254A (en) * 1991-10-29 1993-05-11 Slomo Ancselovics Water and sewerage system for construction, and protection for the same
US20020158138A1 (en) * 2001-04-30 2002-10-31 David Yekutiely Method and appratus for aromatherapy shower
FR2907145A1 (fr) * 2006-10-13 2008-04-18 David Forien Dispositif d'economie d'eau sanitaire par recirculation

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2017503B1 (en) * 2016-09-21 2018-03-29 Hamwells Holding B V Shower
WO2018056816A1 (fr) * 2016-09-21 2018-03-29 Hamwells Holding Bv Douche
WO2018056815A1 (fr) * 2016-09-22 2018-03-29 Hamwells Holding Bv Système de douche à recirculation
NL2017516B1 (en) * 2016-09-22 2018-03-29 Hamwells Holding Bv Recirculation shower system
CN106677321A (zh) * 2017-03-07 2017-05-17 宁波翔龙金属制品有限公司 一种水资源循环利用地漏
EP3441532A1 (fr) * 2017-08-11 2019-02-13 Grohe AG Douche à régime de réchauffage amélioré, procédé de mise en place de ladite douche et son utilisation
WO2021262072A1 (fr) * 2020-06-26 2021-12-30 Orbital Systems Ab Système de mesure de la qualité de l'eau et système de recirculation le comprenant
WO2023215971A1 (fr) * 2022-05-10 2023-11-16 Pledge Resource Managers Inc. Dba Rainstick Shower Bassin de captage destiné à être utilisé dans un système de douche à recirculation
DE102022127265A1 (de) 2022-10-18 2024-04-18 Grohe Ag Verfahren zur Reinigung einer Recycling-Dusche
WO2024083711A1 (fr) * 2022-10-18 2024-04-25 Grohe Ag Procédé de nettoyage d'une douche de recyclage
DE102022130741A1 (de) 2022-11-21 2024-05-23 Grohe Ag Ablaufeinrichtung einer Sanitäreinrichtung
WO2024110194A1 (fr) * 2022-11-21 2024-05-30 Grohe Ag Dispositif de drainage d'un dispositif sanitaire

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