EP2818598B1 - Comfort shower - Google Patents

Comfort shower Download PDF

Info

Publication number: EP2818598B1
Authority: EP; European Patent Office
Prior art keywords: water; catchment basin; shower; support area; pump
Prior art date: 2013-06-27
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

EP13174038.3A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP2818598A1 (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.)

2013-06-27

Filing date

2013-06-27

Publication date

2016-07-27

2013-06-27 Application filed by Betgem Holding BV filed Critical Betgem Holding BV

2013-06-27 Priority to DK13174038.3T priority Critical patent/DK2818598T3/en

2013-06-27 Priority to ES13174038.3T priority patent/ES2592553T3/es

2013-06-27 Priority to EP13174038.3A priority patent/EP2818598B1/en

2014-05-30 Priority to PCT/EP2014/061249 priority patent/WO2014206685A1/en

2014-05-30 Priority to US14/900,839 priority patent/US20160153180A1/en

2014-12-31 Publication of EP2818598A1 publication Critical patent/EP2818598A1/en

2016-07-27 Application granted granted Critical

2016-07-27 Publication of EP2818598B1 publication Critical patent/EP2818598B1/en

Status Active legal-status Critical Current

2033-06-27 Anticipated expiration legal-status Critical

Images

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
- 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
- A47K3/283—Fixed showers
- A47K3/286—Emergency showers
- 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
- A47K3/40—Pans or trays
- 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
- E03F5/22—Adaptations of pumping plants for lifting sewage

Definitions

the present invention relates to a method for operating a shower device for recirculating shower water, and to an assembly to be used in a shower device, that are defined by the appended claims.
Such a method, assembly and shower device are known from DE-4124605 which assembly comprises a catchment basin for collecting water and a support area for supporting a person taking a shower, wherein the support area extends at a support area level and the catchment basin is arranged below the support area level for collecting water.
the assembly also comprises a drain at a bottom level of the catchment basin, a water intake for taking in water from the catchment basin, which intake is arranged between the bottom level of the catchment basin and the support area level, and a pump arranged above the support area level, wherein the water intake is fluidly coupled with the pump for taking in circulating water from the catchment basin.
the catchment basin is provided with a sensor to provide a signal starting the pump.
a pump may alternatively be located outside of a shower stall and attached to a wall, hung or suspended from existing hardware, or otherwise integrated into a supply stem of a fresh hot water source, however in such alternative location of a pump it is unclear if and how this may function.
the known water circulation system has a disadvantage in that it is not as efficient as desired. It is even doubtful if this known water circulation system can even compete with a standard eco shower since the entire floor acts as catchment area and therefore a considerable volume of water is buffered. This huge volume and outer surface of the mass of water undermines efficiency and causes considerable heat loss.
performance with respect to hygiene is poor because the person taking a shower stands with his feet in the water to be circulated.
a person taking a shower may disturb the caught water in the catchment area and therefore harm the continuity of the recycling water flow.
the invention aims to provide a method for operating a shower device which method consumes less water and energy and still meets demands concerning hygiene and enjoys acceptance by users. Another object of the invention is to provide an alternative method for operating a shower device.
the filling of the small catchment basin with fresh water through the pump provides the possibility of improved control of the volume of the circulating shower flow also because of the separation of the support area and the catchment basin.
This separate catchment basin also enables improved control of the volume and facilitates isolation of the caught water.
it ensures a better controlled start of the circulating shower flow in that the drawing in of water by the pump is improved because the supply conduit to the pump from the catchment basin is already filled with water.
the method allows for complete drainage of the shower device once showering is finished. This avoids still water being present in the shower device which still water would undermine hygiene and requires drastic cleaning like e.g. with overheated water.
This complete drainage of the shower device importantly includes complete drainage of the pump.
Known systems do maintain water in the pump and even require to maintain water in the pump in view of starting a recycling flow.
the pump is arranged above the support area level for allowing drainage of the pump.
the pump is preferably entirely arranged above the support area level.
the catchment basin is completely filled from a fresh water supply through the pump and the water intake until a desired showering water volume is in the catchment basin.
the catchment basin is partly filled otherwise, like with a conventional shower head.
the method comprises the step, after finishing showering, draining the entire shower device via the drain at the bottom level of the catchment basin for preventing any still water left behind.
the method comprises the step refreshing the circulating shower flow with a refreshment flow at a flow rate of about half a litre per minute for controlling water temperature of the circulating shower flow and total refreshment of the circulating shower flow every 4 to 6 minutes.
this arrangement of the water intake provides the possibility for complete drainage of the shower device, in particular a pump fluidly coupled with the water intake, once showering is finished. This avoids still water being present in the shower device which still water would undermine hygiene.
the catchment basin being below the support area level for collecting water importantly ensures that the person standing on the support area and taking a shower needs not standing in water of the circulated water flow because a separate catchment basin is provided. Standing in own water to be circulated is found to be perceived as unhygienic and found to be a barrier for enjoying a circulated shower flow. Furthermore the separate catchment basin ensures that a person standing on the support area can move or walk while taking a shower without disturbing water intake to the pump which would undermine continuity of the circulating shower flow.
the support area extends at an angle with respect to the horizontal for dewatering in the catchment basin. This promotes a prompt dewatering of water towards the catchment basin which enables to have a small volume catchment basin and facilitates maintaining water temperature of the circulating shower flow.
the catchment basin and support area are mutually arranged such that water caught in the catchment basin is visible from point of view of a person supported by the support area for taking a shower. This reassures the person taking a shower in that he or she receives direct visual feedback concerning the freshness of the circulating shower flow and cleanliness of the catchment basin.
the assembly comprises an overflow outlet for determining a basin water level and which overflow outlet is therefore aligned with the support area. This even more assures a separation of the support area and the catchment basin.
the catchment basin is isolated to prevent loss of heat. This promotes efficiency even more. This isolation is facilitated by the catchment basin having a relatively low volume. Preferably the support area is isolated as well to promote efficiency even more.
a shower device 1 according to the invention is shown as well as an assembly 2 of a support area 14 and a catchment basin 10.
the invention will now be described referring to the embodiments in fig. 1 and 2 referring to all figures.
the first embodiment shown in fig. 1 is a shower device 1 which is shown in a schematic way.
the shower device 1 comprises a support area 14 at a support area level for supporting a person 30 taking a shower.
the support area extends at an angle ⁇ with respect to the horizontal for dewatering in the catchment basin 10.
the support area 14 is suitable for supporting a person taking a shower.
Both the support area 14 and the catchment basin 10 are isolated by an isolation layer 32 to prevent heat losses.
the shower device 1 comprises a catchment basin 10.
the catchment basin 10 extends below the support area level for collecting water from the support area 14.
the catchment basin 10 and support area 14 are mutually arranged such that water caught in the catchment basin 10 is visible and easy cleanable from point of view of a person supported by the support area 14 for taking a shower.
the volume of the shown catchment basin 10 is about 1,8 litre, the catchment basin being dimensioned circa 4 cm in depth, 90 cm in length, and 5 cm in width. This small volume of the catchment basin 10 facilitates isolation of the basin by isolating material 32 known per se.
the catchment basin 10 has an overflow outlet 11 which determines the basin water level 31. Surplus of water is drained via the overflow outlet 11 which enables to refresh the circulating shower flow at a desired rate and also aids in control of the volume of the circulating shower flow, and assures a strict separation of support area 14 and catchment basin 10.
the overflow outlet 11 is therefore aligned with the support area 14. Surplus of water is drained via the overflow outlet 11 and the outlet pipe 18 into the sewer 19.
the shower device 1 comprises a drain 12 at a bottom level of the catchment basin 10.
the drain 12 may be a conventional type of drain which can be manually closed off, however it is conceivable for the drain 12 to be equipped with a valve (not shown) which can be closed automatically once the circulating shower flow starts.
the drain 12 debouches in a sewer 19.
the shower device 1 comprises a pump 7 for pumping a circulating shower flow.
the pump 7 has a pump housing 8.
the pump 7 is arranged entirely above the support area level.
the pump 7 is arranged above the drain 12 such that the pump 7 may drain completely.
arranged “entirely above” here means that the pump 7 is able to completely drain in the catchment basin 10.
the shower device 1 comprises a water intake 13 which is fluidly coupled with the pump 7 for circulating the circulating shower flow between the catchment basin 10 and the shower head 3.
the intake 13 is arranged with respect to the catchment basin 10 such that is takes in water between the bottom level 34 of the catchment basin 10 and the support area level 35.
the water intake 13 here is arranged a few millimetres from the bottom of the catchment basin 10.
the water intake opening 36 of the water intake 13 faces downwards towards the bottom of the catchment basin 10 for taking in water in a substantial vertical upward direction.
the shower device comprises a course filter (not shown and not claimed) arranged at the water intake 13 for preventing ingress of dirt towards the pump 7.
the course filter comprises a replaceable filter element (not shown) which is easily replaceable by a person 30 (partly shown) taking a shower.
the shower device comprises a thermostatic mixer tab 4 with a control means 6 for manually setting the temperature and volume of the circulating shower flow.
the thermostatic mixer tab 4 is coupled with a fresh hot water supply 9 via a hot water input of the thermostatic mixer tab 4.
the thermostatic mixer tab 4 is coupled with the pump for taking in a circulating shower flow at the cold water input of the thermostatic mixer tab 4.
a course pump filter 22 is arranged upstream with respect to the thermostatic mixer tab 4 for filtering the circulating flow before entering the mixer tab 4.
the mixer tab 4 is accommodated in a mixer tab housing 5.
the shower device 1 comprises a relief valve (not shown and not claimed) for allowing the entire shower device 1 to drain at the bottom level of the catchment basin 10 for preventing any still water left behind in the shower device 1. Therefore any check valve normally present in the mixer tab 4 has been removed for allowing the shower device 1 to drain such that circulated water is not present anymore in the shower device 1.
the thermostatic mixer tab 4 is modified in that the not-return valve, also check valve, is removed such that the shower system 1 is able to drain entirely.
the draining of the shower device 1 beneficially cleans the not claimed course pump filter 22 and the pump 7.
the course pump filter 22 and the pump 7 may also be actively washed with water directly from the fresh water supply 9 without a circulating shower flow being present.
the course pump filter 22 and the pump 7 may drain via the catchment basin 10 and the drain 12.
the course pump filter 22 and the pump 7 may drain may drain via respective pipes 15, 16 to the sewer 19.
the shower device 1 comprises a controllable valve (not shown and not claimed) arranged for closing the drain 12 at the bottom level of the catchment basin 10.
the controllable valve is operationally coupled with the pump 7 for closing the valve in connection with activating of the pump 7.
the catchment basin 10 is filled from a fresh water supply 9 through the pump 7 and the water intake 13 until a desired showering water volume is in the catchment basin 10.
the pump 7 is idle.
the pump 7 is activated and water is taken in at the water intake 13.
the taken in water is pumped towards the shower head 3 for circulating a circulating shower flow between the catchment basin 10 and the shower head 3 which dispenses at the support area 14.
water from the entire shower device 1 is drained via the drain 12 at the bottom level of the catchment basin 10 for preventing any still water left behind.
the shower device according to the invention consumes up to between 50% and 90% less water and energy compared with known circulating shower systems.
the second embodiment shown in fig. 2 is a shower device 1 which is shown in a schematic way.
the shower device 1 comprises here a not claimed conventional shower system 17.
the conventional shower system 17 is separate from the recycling shower system.
the person may use a conventional shower system 17 for soaping and rinsing and a recycling shower system for enjoying a comfort shower.
a comfort shower is regarded here as a shower which is not necessarily from hygienic point of view.
the recycling shower system according to the invention only uses 10% of water and 10% of energy compared with the conventional shower system 17 while offering 10 times more water/minute.
the conventional shower system 17 uses a thermostatic mixer tab 23 well known per se.
the mixer tab 23 is coupled with a hot 25 and cold 24 fresh water supply.
the initial filling of the catchment basin 10 is done by reversing the mixed flow from the mixer tab 23 towards the pump 7 which is then still idle.
the circulating shower flow passes a thermostatic safety valve 21 which valve provides safety in that water above a set temperature may not contact the person taking a shower.
the circulating shower flow passes a not claimed uv-filter device 28 for filtering the circulating shower flow.
Additional safety may be provided by a safety valve 26, like a electromagnetic valve, which valve prevents leakage of so called grey water to fresh water.
the shower device 1 comprises a water intake 13 which is fluidly coupled with the pump 7 via water intake pipe 20 for circulating the circulating shower flow between the catchment basin 10 and the shower head 3.
the water intake 13 here is arranged a few millimetres from the bottom of the catchment basin 10.
the water intake opening faces downwards towards the bottom of the catchment basin 10 for taking in water in a substantial vertical upward direction. This is also shown in fig. 4 .
the low water intake 13 guarantees complete drainage of the pump 7 once comfort showering is finished, and guarantees a stable intake of water at all conditions of movement of persons on the support area 14 or even water movement in catchment basin 3.
the shower device 1 comprises a not claimed relief valve 37 for allowing the entire shower device 1 to drain at the bottom level of the catchment basin 10 for preventing any still water left behind in the shower device 1.
the shower device 1 comprises a not claimed controllable valve (not shown) arranged for closing the drain 12 at the bottom level of the catchment basin 10.
the controllable valve is operationally coupled with the pump 7 for closing the valve in connection with activating of the pump 7.
the catchment basin 10 is filled from a fresh water supply 9 through the pump 7 and the water intake 13 until a desired showering water volume is in the catchment basin 10.
the pump 7 is activated and water is taken in at the water intake 13.
the taken in water is pumped towards the shower head 3 for circulating a circulating shower flow between the catchment basin 10 and the shower head 3 which dispenses at the support area 14.
water from the entire shower device 1 is drained via the drain 12 at the bottom level of the catchment basin 10 for preventing any still water left behind.
Fig. 5 and 6 graphs of estimated savings of the shower device 1 according to the invention.
the total saving is shown versus years.
the saving is the difference between the cost of a shower device according to the invention (thin line) and the cost of a commonly used shower (bold line).
Fig. 5 shows the saving for a 4 person household using a walk in shower consuming 10 litres per minute with an average shower duration of 10 minutes.
Fig. 6 shows the saving for a 4 person household using a shower with a shower curtain, the shower consuming 12 litres per minute with an average shower duration of 12,5 minutes.

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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)

EP13174038.3A 2013-06-27 2013-06-27 Comfort shower Active EP2818598B1 (en)

Priority Applications (5)

Application Number	Priority Date	Filing Date	Title
DK13174038.3T DK2818598T3 (en)	2013-06-27	2013-06-27	comfort Shower
ES13174038.3T ES2592553T3 (es)	2013-06-27	2013-06-27	Ducha de confort
EP13174038.3A EP2818598B1 (en)	2013-06-27	2013-06-27	Comfort shower
PCT/EP2014/061249 WO2014206685A1 (en)	2013-06-27	2014-05-30	Comfort shower
US14/900,839 US20160153180A1 (en)	2013-06-27	2014-05-30	Comfort shower

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP13174038.3A EP2818598B1 (en)	2013-06-27	2013-06-27	Comfort shower

Publications (2)

Publication Number	Publication Date
EP2818598A1 EP2818598A1 (en)	2014-12-31
EP2818598B1 true EP2818598B1 (en)	2016-07-27

Family

ID=48700373

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP13174038.3A Active EP2818598B1 (en)	2013-06-27	2013-06-27	Comfort shower

Country Status (5)

Country	Link
US (1)	US20160153180A1 (es)
EP (1)	EP2818598B1 (es)
DK (1)	DK2818598T3 (es)
ES (1)	ES2592553T3 (es)
WO (1)	WO2014206685A1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL2016017B1 (en) *	2015-12-23	2017-07-03	Hamwells Holding B V	Shower.
NL2016021B1 (en) *	2015-12-23	2017-07-05	Hamwells Holding B V	Shower.
RS59318B1 (sr) *	2016-04-21	2019-10-31	LALOSEVIC Milan	Zatvoren sistem sanitarne vode
NL2017503B1 (en)	2016-09-21	2018-03-29	Hamwells Holding B V	Shower
NL2017516B1 (en)	2016-09-22	2018-03-29	Hamwells Holding Bv	Recirculation shower system
US20190368167A1 (en) *	2016-11-25	2019-12-05	Orbital Systems Ab	A drain for a water recycling device
US10947705B2 (en)	2016-11-25	2021-03-16	Orbital Systems Ab	Method for recycling water and a water recycling device
WO2018202807A1 (en)	2017-05-03	2018-11-08	Flow-Loop Ivs	A drain valve device for a water recirculation shower system and method for controlling a water level of such
DE102017118372A1 (de) *	2017-08-11	2019-02-14	Grohe Ag	Dusche mit verbesserten Warmlaufverhalten, ein diese einsetzendes Verfahren und deren Verwendung
EP4175521A4 (en) *	2020-07-01	2024-07-31	Kohler Mira Limited	RECIRCULATING SHOWER SYSTEM
DE102021108030A1 (de)	2021-03-30	2022-10-06	Grohe Ag	Vorrichtung für eine Sanitäreinrichtung und Sanitäreinrichtung
USD1055238S1 (en) *	2022-07-04	2024-12-24	Xiamen Delmei Sanitary Ware Co., Ltd.	Three-way pipe connector
FR3140385B1 (fr) *	2022-09-30	2025-02-14	Ilya	Douche cyclique avec deux circuits indépendants chauffés
DE102022127265A1 (de) *	2022-10-18	2024-04-18	Grohe Ag	Verfahren zur Reinigung einer Recycling-Dusche
USD1065462S1 (en) *	2023-02-22	2025-03-04	Shengwu ZHANG	Extension rod for shower
SE2350501A1 (en) *	2023-04-26	2024-10-27	Ikea Supply Ag	Recirculating shower system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4124605A1 (de) *	1991-07-25	1993-01-28	Manfred Schneider	Wascheinrichtung mit einem das waschwasser verstrahlenden waschkopf
SE469413B (sv) *	1991-11-22	1993-07-05	Electrolux Ab	Energi- och vattenbesparande dusch
US5353448A (en)	1992-06-30	1994-10-11	Lee Gary M	Water recycling system using spent recycled water with fresh water
DE29813626U1 (de) *	1998-07-30	1998-10-22	Saalmann GmbH, 32049 Herford	Medizinische Duschvorrichtung

2013
- 2013-06-27 ES ES13174038.3T patent/ES2592553T3/es active Active
- 2013-06-27 DK DK13174038.3T patent/DK2818598T3/en active
- 2013-06-27 EP EP13174038.3A patent/EP2818598B1/en active Active
2014
- 2014-05-30 WO PCT/EP2014/061249 patent/WO2014206685A1/en active Application Filing
- 2014-05-30 US US14/900,839 patent/US20160153180A1/en not_active Abandoned

Also Published As

Publication number	Publication date
US20160153180A1 (en)	2016-06-02
ES2592553T3 (es)	2016-11-30
DK2818598T3 (en)	2016-09-26
WO2014206685A1 (en)	2014-12-31
EP2818598A1 (en)	2014-12-31

Publication	Publication Date	Title
EP2818598B1 (en)	2016-07-27	Comfort shower
CA2690804C (en)	2015-06-30	Accelerated tub drain
WO2004101902A1 (en)	2004-11-25	Water recycle system
NL2016021B1 (en)	2017-07-05	Shower.
NL2016017B1 (en)	2017-07-03	Shower.
KR100960708B1 (ko)	2010-06-01	온도조절이 용이한 혼합수 및 냉,온수공급시스템
US20200131746A1 (en)	2020-04-30	Shower system
US20110225722A1 (en)	2011-09-22	Device for dispensing shower water in a closed loop, and shower equipment including such a device
US20160084509A1 (en)	2016-03-24	Water saving apparatus
JP2020175128A (ja)	2020-10-29	入浴水循環ろ過システム
AU2013202532B2 (en)	2015-02-19	Water saving apparatus
JP7089927B2 (ja)	2022-06-23	ノズル体
RU2645223C1 (ru)	2018-02-19	Способ обустройства ванной комнаты в многоэтажном доме
KR101511683B1 (ko)	2015-04-14	욕실용 통합 배수트랩
JP2022028944A (ja)	2022-02-16	衛生設備機器
JP2020130717A (ja)	2020-08-31	風呂蓋および風呂システム
JP3527689B2 (ja)	2004-05-17	浴槽管理システム
KR101487394B1 (ko)	2015-02-06	욕실용 통합 배수트랩
JP3144631U (ja)	2008-09-04	足湯装置
EP4522815A1 (en)	2025-03-19	Catchment basin for use in a recirculating shower system
KR101630236B1 (ko)	2016-06-14	배수트랩용 방수캡
EP4232643A1 (en)	2023-08-30	A water tank arrangement and a method arranged to circulate waste water in response to a predetermined termperature
JP2022011462A (ja)	2022-01-17	洗面化粧台
KR101507980B1 (ko)	2015-04-07	욕실 층상배관 시스템
JP3062089U (ja)	1999-09-28	二重床式浴室洗場床暖房設備

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