NL2016021B1 - Shower. - Google Patents

Shower. Download PDF

Info

Publication number
NL2016021B1
NL2016021B1 NL2016021A NL2016021A NL2016021B1 NL 2016021 B1 NL2016021 B1 NL 2016021B1 NL 2016021 A NL2016021 A NL 2016021A NL 2016021 A NL2016021 A NL 2016021A NL 2016021 B1 NL2016021 B1 NL 2016021B1
Authority
NL
Netherlands
Prior art keywords
shower
water
tank
pump
recirculation
Prior art date
Application number
NL2016021A
Inventor
De Jong Reitse
Greidanus Coen
Van Duin Eric
Reiling Helmer
Chömpff Robbert
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 NL2016021A priority Critical patent/NL2016021B1/en
Application granted granted Critical
Publication of NL2016021B1 publication Critical patent/NL2016021B1/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00Methods or layout of installations for water supply
    • E03B1/04Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041Greywater supply systems
    • E03B1/042Details thereof, e.g. valves or pumps
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47KSANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K3/00Baths; Douches; Appurtenances therefor
    • A47K3/28Showers or bathing douches
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00Methods or layout of installations for water supply
    • E03B1/04Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041Greywater supply systems
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/04Water-basin installations specially adapted to wash-basins or baths
    • E03C1/0408Water installations especially for showers
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00Methods or layout of installations for water supply
    • E03B1/04Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041Greywater supply systems
    • E03B2001/045Greywater supply systems using household water

Abstract

Recirculation shower (2, 102) comprising a pump (10, 110) for circulating water through the recirculation shower (2, 102), and a water tank (28, 132, 133) fluidly connected to an inlet (29, 129) of the pump. The tank is positioned at a higher level than the pump. A fresh water supply (35, 132) feeds the tank. Optionally, the shower may have two such tanks, one for hot water and one for cold water, to mix water of a desired temperature into the recirculated shower flow.

Description

SHOWER
The present invention relates to a recirculation shower. During a shower bath such 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. Usually, 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.
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.
This creates a risk that water from the recirculation flow might contaminate tap water in the public water supply network. Moreover, a single pump is used to circulate spent water in a circulation mode and to supply fresh water in a conventional shower mode. Most jurisdictions require a strict separation of the public water supply network from any source of possibly polluted water, such as recirculation water in a Jacuzzi bath. The shower system of WO 2014/206685 does not seem to meet such requirements.
Another drawback of the shower system of WO 2014/206685 is that the pump is at a distance above the water level in the water catchment basin below the shower floor. When the shower is switched to recirculation mode, it will take considerable time and pump power for starting up the circulation flow.
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 recircuiation shower; 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 tank.
This way, the suction side of the pump is always directly in contact with pumpable water. The circulation flow can start as soon as the pump is activated. Smaller pumps with less power can be used.
The fresh water supply may tor 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.
In a specific embodiment 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 recircuiation 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.
Optionally, 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 reelrculation 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. In such a case, 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 minimise the difference between a temperature measured by the sensor and a set value.
Optionally? one or both of the tanks may comprise an overflow outlet, e.g., with an overflow line running to the water collection reservoir. Optionally, one or both of the two tanks may comprise a float for stopping water supply to the tank if a maximum level is reached. In a specific embodiment, 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.
The invention is further explained with reference to the accompanying drawings showing exemplary embodiments.
Figure 1: schematically shows a first embodiment of a shower;
Figure 2; schematically shows a second embodiment of a shower ,
Figure 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 shower system 1 comprises a thermostatically 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, 1.4 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,
Although not shown in Figure 1, 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 recirculation flow. A motorized thermostat 22 allows a user to maintain the shower water sit 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 overflow line 10 leading to the water collection reservoir 6.
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, When the user switches over to the conventional shower 3, 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. Meanwhile, the tank 28 is fed with fresh tap waiter of the same temperature as the water dispensed by the conventional shower 3, When the tank 28 is filled, excess water will flow via the overflow outlet 39 and the water collection reservoir 6 to the drain 21,
After finishing washing by means of the conventional shower 3 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,, continuously or intermittently, 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.
During circulation flow, excess water is discharged from the water collection reservoir via the overflow outlet with a flow rate corresponding to the flow rate of the tap 12, 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.
Figure 2 shows an embodiment of a shower system 101 having two water tanks 132, 133 instead of one. Just like the embodiment of Figure 1, 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), A 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 recirculation flow, 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 waiter 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 collection reservoir 106, 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 111 provided with a proportional valve 142. Downstream the proportional valves 142 the two outlet lines 111 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.

Claims (11)

  1. lo Recirculation shower (2, 102) comprising a pump (10, 110) for circulating water through the recirculation shower (2, 102) characterized in. that the recirculation shower comprises a water tank (28, 132, 133) fluidly connected to an inlet (29, 129) of the pump and positioned at a higher level than the pump, wherein the recirculation shower further comprises a fresh water supply (35, 132) for feeding the tank.
  2. 2. Shower according to claim 1, the tank comprising an overflow outlet (39, 133).
  3. 3. Shower according to claim. 2, comprising a water collection reservoir (6, 104) fluidly connected to the inlet (29, 129) of the pump (10, 110), and an overflow line (41, 141) between the overflow outlet of the tank and the water collection reservoir.
  4. 4. Shower according to any preceding' claim, the tank (28, 132, 133) being fed by a thermostatically controlled tap water supply line.
  5. 5. Shower according to any preceding claim, comprising a valve (25) and a control unit opening the valve when the pump is activated and closing off the tank after the recirculation flow has reached a set flow rate.
  6. 6. Shower according to any preceding claim, comprising a second tank (133) fluidly connected to an. inlet (129) of the pump (110) and positioned at a higher level than the pump.
  7. 7. Shower according to claim 6, wherein the second tank (133) comprises a float preventing overflow.
  8. 8. Shower according to claim 6 or 7, wherein the second tank (133) is fed by a hot water supply line while the first tank is fed by a cold water supply line.
  9. 9. Shower according to claim. 8, wherein the two tanks (132, 133) comprise outlet line with proportional, valves, wherein the two outlet lines combine to form a single pump feeding line (143) containing a temperature sensor, wherein a control unit controls the proportional valves to minimize the difference between a. temperature measured by the sensor and a set value.
  10. 10. Shower system (1, 101) coraprising a conventional shower (3, 103) with, hot and cold, water supply lines and a recirculation shower according to any preceding claim, wherein the recirculation shower (2, 102) defines a circulation flow path isolated, from hot and. cold water supply lines of the conventional shower.
  11. 11. Shower system according to claim 10, wherein the temperature of water fed to the tank and to the conventional shower is controlled by the same thermostat (22, 122).
NL2016021A 2015-12-23 2015-12-23 Shower. NL2016021B1 (en)

Priority Applications (1)

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

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL2016021A NL2016021B1 (en) 2015-12-23 2015-12-23 Shower.
PCT/NL2016/050917 WO2017111600A1 (en) 2015-12-23 2016-12-23 Shower
US16/064,324 US20190003158A1 (en) 2015-12-23 2016-12-23 Shower
EP16825920.8A EP3394352A1 (en) 2015-12-23 2016-12-23 Shower

Publications (1)

Publication Number Publication Date
NL2016021B1 true NL2016021B1 (en) 2017-07-05

Family

ID=55532267

Family Applications (1)

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

Country Status (4)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020511233A (en) * 2017-03-15 2020-04-16 オービタル、システムズ、アクチボラグOrbital Systems Ab Method for individually adjusting the output water temperature in a device with multiple drains
EP3615741A4 (en) * 2017-04-27 2021-01-20 Orbital Systems Ab Water recirculating device and method for adjusting a water temperature in a water recirculating device
WO2019191789A2 (en) * 2018-03-26 2019-10-03 Mare Jeremias Jesajas Jacobus Washing unit

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 (en) * 2005-06-07 2006-12-14 Royal College Of Art Recirculating shower system
US20110289672A1 (en) * 2010-05-28 2011-12-01 Douglas Patrick Cummings System and method for showering with fixed parameter water usage
WO2014206685A1 (en) * 2013-06-27 2014-12-31 Betgem B.V. Comfort shower

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 (en) * 2005-06-07 2006-12-14 Royal College Of Art Recirculating shower system
US20110289672A1 (en) * 2010-05-28 2011-12-01 Douglas Patrick Cummings System and method for showering with fixed parameter water usage
WO2014206685A1 (en) * 2013-06-27 2014-12-31 Betgem B.V. Comfort shower

Also Published As

Publication number Publication date
EP3394352A1 (en) 2018-10-31
WO2017111600A1 (en) 2017-06-29
US20190003158A1 (en) 2019-01-03

Similar Documents

Publication Publication Date Title
US6732387B1 (en) Automated pedicure system
EP1569544B1 (en) High flow rate water supply assembly
TWI499706B (en) Sanitary cleaning device
CN202785607U (en) Drink distribution system and drink distributor
AU655679B2 (en) Energy and water saving shower assembly
JP4164037B2 (en) Bathroom heating dryer with mist sauna function
JP2009264732A (en) Hot water system
US20090050209A1 (en) Apparatus and method for filling a bathtub
KR100552442B1 (en) Nursing bath apparatus
US20040053702A1 (en) Water recreational apparatus with remote controllable valves
JP4469177B2 (en) Equipment for providing and dispensing mineral water suitable for consumption
US4761838A (en) Contrast-healing water spa system
AU2010250197B2 (en) Cold/hot water supply system with an improved control unit
US5459890A (en) Water blending and recycling apparatus
US6925661B1 (en) Bathtub/shower water control system
KR101742568B1 (en) Hot water supply control apparatus
US8453275B2 (en) Combination bathtub and spa
EP3101185B1 (en) Sanitary washing apparatus
CA2887179C (en) Multi-functional personal hygiene system
KR20130027863A (en) Clean water storage tank with a steam convection oven
AU2012251536B2 (en) Greywater system with several reservoirs in parallel
JP2009293884A (en) Water heater with reheating function
JP2010024780A (en) Toilet device
JP2010148745A (en) Washing device
WO2018056815A1 (en) Recirculation shower system