WO2001012047A1 - Shower floor grating having flow preheating - Google Patents

Shower floor grating having flow preheating Download PDF

Info

Publication number
WO2001012047A1
WO2001012047A1 PCT/SE2000/001548 SE0001548W WO0112047A1 WO 2001012047 A1 WO2001012047 A1 WO 2001012047A1 SE 0001548 W SE0001548 W SE 0001548W WO 0112047 A1 WO0112047 A1 WO 0112047A1
Authority
WO
WIPO (PCT)
Prior art keywords
shower
grating
tubular coil
floor
standing floor
Prior art date
Application number
PCT/SE2000/001548
Other languages
French (fr)
Inventor
Tommy Asterhed
Original Assignee
Helast Bio Ab
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 Helast Bio Ab filed Critical Helast Bio Ab
Priority to EP00952112A priority Critical patent/EP1204358A1/en
Publication of WO2001012047A1 publication Critical patent/WO2001012047A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0005—Domestic hot-water supply systems using recuperation of waste heat
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
    • 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
    • E03C2001/005—Installations allowing recovery of heat from waste water for warming up fresh water
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Definitions

  • the present invention is for a shower floor grating with flow preheating for raising of the temperature of the cold water inflow
  • Figure 1 is a top view of a shower grating according to the invention
  • Figure 2 is a bottom view of the shower grating
  • Figures 3 and 4 are cross-sections of parts of the shower grating
  • the shower grating 1 has a standing floor 7 and a downward outer border 6
  • the outer dimensions of the shower grating are adapted to the space which is available, this often means a square or rectangular shape with a side length of 600-1000 mm
  • the grating may also have legs 2 which extend themselves further down than the border 6 so that water which occurs outside the shower grating may flow in underneath it to a draining gutter
  • the standing floor 7 has a number of long slit openings 4 and is otherwise closed
  • the outer border 6 preferably extends itself both upwards to prevent flow of water over the sides and downward somewhat below the standing floor 7
  • a meandering tubular coil 3 is mounted at the underside of the shower grating
  • the tubular coil is held by mounting means so that it is a short distance underneath the underside of the standing floor 7 and at least so far above the flooring that the tubular coil is not in direct contact with the water which collects or flows on the flooring
  • the tube connection 5 the tubular coil is so connected that inflowing cold water is fed to it and after heat exchange is fed to the shower device to be mixed with inflowing hot water
  • the tube connection 5 and the mounting means for the tubular coil are designed so that the entire tubular coil may be released from the mounting means and turned around at the connection 5 so that the tubular coil and the underside of the shower grating become accessible for cleaning
  • the connection between the shower grating and the in- and outflowing water preferably is a pressure resisting hose so that the shower grating as a whole may be lifted up from the flooring
  • the slit openings 4 of the standing floor form the same pattern as the meandering tubular coil which is positioned directly underneath the slit openings Between them the standing floor is shaped as a domed surface or in cross section, as shown in figures 3 and 4, upward curved surface the top point of which is between two adjacent, parallel slit openings
  • the dwell time of the water at the standing board will be short and heat losses to the surroundings will be small
  • the curving of the surface may vary within wide limits, also a small curving will sufficiently influence the flow of water to ensure the proper function of the device
  • the standing floor 7 and the borders 6 of the shower grating 1 are made as one piece with soft bending of corners and edges so that dirt and bacteria not can cumulate
  • Inflowing cold water usually has a temperature of 4-8 °C, using a shower grating according to the invention this may be raised to more than 20°C, which means a reduction of the consumption of hot water by up to 30% This in turn means that the cost for the shower grating for an average family may correspond to reduced costs for hot water during a period as short as one year
  • the sections between the slit openings may be of different cross section conditional to that it meets the requirements of directing the flow of water on the standing floor as desired
  • the tubular coils may have another shape than that described above where the slit openings and the tubular coil shall be adapted to one another as described above
  • the tubular coil may also in other ways be mounted to and releasable from the standing floor
  • the shape of the standing floor may be circular, triangular or irregular and the shape of the tubular coil is to be adapted to the standing floor in a suitable way
  • the cross sections of the tubes may differ from the circular shown in the figures, for example drop-shaped when the point of the drop preferably is pointing down

Abstract

The present invention is for a shower grating having flow preheating to increase the temperature of the inflowing cold water. The shower grating has a standing floor (7) and a tubular coil (3) positioned under it through which the inflowing cold water flows before it is mixed with inflowing hot water. The tubular coil (3) is rotatably mounted at the under side of the standing floor (7) at a distance from it and from the floor underneath. The standing floor has slit openings (4) positioned right above the tubular coil.

Description

SHOWER FLOOR GRATING HAVING FLOW PREHEATING.
The present invention is for a shower floor grating with flow preheating for raising of the temperature of the cold water inflow
At showering inflowing hot and cold water is mixed so that the desired temperature is obtained of the water which flows out from the nozzle of the shower The amount of hot water which is consumed is directly depending upon the temperature of the inflowing cold water which therefor also decides the amount of heat which is consumed och the cost for this The inflowing cold water may be heated by heat exchange with the outflowing used shower water so the that the consumption of heat is reduced and the cost is lowered It is then essential that the heat transfer to the inflowing water is as efficient as possible In order to make the heat recovery profitable also at small units such as individual showers it is also required that the costs for the necessary equipment is low in absolute figures as also the costs of installation The device must also be easy to clean as this is of importance from hygienic points of view and also for the function of the device
Showers often have a low shower basin which means that a small volume of water is collected in the basin during the showering Means for heat recovery are known at which tube meanders a put into the shower basin and during the showering become immersed into the used water before it flows out over an outflow brim However, such devices have turned out to be unsatisfactory for heat recovery and they have important hygenic disadvantages as skin flakes, hair etc easily collects on the tubes
The present invention is for a shower grating having flow preheating by which the above mentioned disadvantages may be avoided and an efficient preheating of the inflowing cold water is achieved The invention has the characterizing features which are apparent from the first claim Embodiments of the invention has those characteristics which are apparent from the other claims
The invention will below be described more in detail with reference to the not limiting example of an embodiment which is shown in the enclosed figures
Figure 1 is a top view of a shower grating according to the invention Figure 2 is a bottom view of the shower grating
Figures 3 and 4 are cross-sections of parts of the shower grating
The shower grating 1 has a standing floor 7 and a downward outer border 6 The outer dimensions of the shower grating are adapted to the space which is available, this often means a square or rectangular shape with a side length of 600-1000 mm The grating may also have legs 2 which extend themselves further down than the border 6 so that water which occurs outside the shower grating may flow in underneath it to a draining gutter The standing floor 7 has a number of long slit openings 4 and is otherwise closed The outer border 6 preferably extends itself both upwards to prevent flow of water over the sides and downward somewhat below the standing floor 7
A meandering tubular coil 3 is mounted at the underside of the shower grating The tubular coil is held by mounting means so that it is a short distance underneath the underside of the standing floor 7 and at least so far above the flooring that the tubular coil is not in direct contact with the water which collects or flows on the flooring By the tube connection 5 the tubular coil is so connected that inflowing cold water is fed to it and after heat exchange is fed to the shower device to be mixed with inflowing hot water The tube connection 5 and the mounting means for the tubular coilare designed so that the entire tubular coil may be released from the mounting means and turned around at the connection 5 so that the tubular coil and the underside of the shower grating become accessible for cleaning In order to further facilitate cleaning the connection between the shower grating and the in- and outflowing water preferably is a pressure resisting hose so that the shower grating as a whole may be lifted up from the flooring
The slit openings 4 of the standing floor form the same pattern as the meandering tubular coil which is positioned directly underneath the slit openings Between them the standing floor is shaped as a domed surface or in cross section, as shown in figures 3 and 4, upward curved surface the top point of which is between two adjacent, parallel slit openings This means that all water is controlled so that it after a short dwell time at the standing floor rapidly is transferred to the tubular coil and flow around it so that the tubular coil is continuously washed by the flowing water As the used shower water immediately flows on to the slits and through these down at the tubular coil it is further achieved that the dwell time of the water at the standing board will be short and heat losses to the surroundings will be small The curving of the surface may vary within wide limits, also a small curving will sufficiently influence the flow of water to ensure the proper function of the device
For hygienic and other reasons the standing floor 7 and the borders 6 of the shower grating 1 are made as one piece with soft bending of corners and edges so that dirt and bacteria not can cumulate
Inflowing cold water usually has a temperature of 4-8 °C, using a shower grating according to the invention this may be raised to more than 20°C, which means a reduction of the consumption of hot water by up to 30% This in turn means that the cost for the shower grating for an average family may correspond to reduced costs for hot water during a period as short as one year
Other embodiments of the shower grating are possible within the frame of the inventive idea The sections between the slit openings may be of different cross section conditional to that it meets the requirements of directing the flow of water on the standing floor as desired The tubular coils may have another shape than that described above where the slit openings and the tubular coil shall be adapted to one another as described above The tubular coil may also in other ways be mounted to and releasable from the standing floor The shape of the standing floor may be circular, triangular or irregular and the shape of the tubular coil is to be adapted to the standing floor in a suitable way The cross sections of the tubes may differ from the circular shown in the figures, for example drop-shaped when the point of the drop preferably is pointing down These and other embodiments are also included in the invention

Claims

CLAIMS.
1 Shower grating having preheating of the flow to increase the temperature of the inflowing cold water, the grating having a standing floor (7) and a tubular coil (3) there under through which incoming cold water flows before it is mixed with inflowing hot water characterized in that the tubular coil (3) is rotatably or releasably mounted to the underside of the standing floor (7) at a distance from it and from the floor below and that the standing floor has slit openings (4) positioned right above the tubular coil
2 Shower grating according to claim 1 characterized in the standing floor (7) has an upward arched shape between adjacent slit openings (4)
3 Shower grating according to claim 1 or 2 characterized in that the tubular coil (3) is rotatably mounted to the shower grating
PCT/SE2000/001548 1999-08-17 2000-08-07 Shower floor grating having flow preheating WO2001012047A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00952112A EP1204358A1 (en) 1999-08-17 2000-08-07 Shower floor grating having flow preheating

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9902923-3 1999-08-17
SE9902923A SE513165C2 (en) 1999-08-17 1999-08-17 Shower tray with flow preheating

Publications (1)

Publication Number Publication Date
WO2001012047A1 true WO2001012047A1 (en) 2001-02-22

Family

ID=20416683

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2000/001548 WO2001012047A1 (en) 1999-08-17 2000-08-07 Shower floor grating having flow preheating

Country Status (3)

Country Link
EP (1) EP1204358A1 (en)
SE (1) SE513165C2 (en)
WO (1) WO2001012047A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2413841A (en) * 2004-05-07 2005-11-09 Matthew Rutherford A heat exchange unit utilising waste water to heat cold mains water
WO2006091173A1 (en) * 2005-02-24 2006-08-31 Ensapro Energy Saving Professionals Ab A heat exchanger
EP2453194A1 (en) * 2010-11-16 2012-05-16 Gertjan Jelle Wit de Drain provided with a heat exchanger, and shower tray or shower cubicle provided with such a drain
US8973178B2 (en) 2009-02-06 2015-03-10 Joulia Ag Heat exchanger
CN107613821A (en) * 2015-05-14 2018-01-19 国家空间研究中心.M.蒙特罗帕斯夸尔公司 For the tank and the flat surfaces of shower disc by channel drainage
DE102022117656A1 (en) 2022-07-14 2024-01-25 Bette Gesellschaft mit beschränkter Haftung & Co. K.G. Sanitary tub installation and plumbing setup

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290423A (en) * 1980-04-25 1981-09-22 Main-Tainer Corporation Paraplegic stand having a lift mechanism
DE3319638A1 (en) * 1982-06-19 1983-12-22 Helmut 7441 Unterensingen Zink Device for preheating fresh water to be heated for showering or the like, using service water used for showering
US4821793A (en) * 1987-08-06 1989-04-18 Sheffield Robert D Tub and shower floor heat exchanger
DE3919544A1 (en) * 1989-06-15 1991-01-03 Stiebel Eltron Gmbh & Co Kg Bath tub for shower-bath - has floor supported on ribs which extend above cold water inlet pipe coil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290423A (en) * 1980-04-25 1981-09-22 Main-Tainer Corporation Paraplegic stand having a lift mechanism
DE3319638A1 (en) * 1982-06-19 1983-12-22 Helmut 7441 Unterensingen Zink Device for preheating fresh water to be heated for showering or the like, using service water used for showering
US4821793A (en) * 1987-08-06 1989-04-18 Sheffield Robert D Tub and shower floor heat exchanger
DE3919544A1 (en) * 1989-06-15 1991-01-03 Stiebel Eltron Gmbh & Co Kg Bath tub for shower-bath - has floor supported on ribs which extend above cold water inlet pipe coil

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2413841A (en) * 2004-05-07 2005-11-09 Matthew Rutherford A heat exchange unit utilising waste water to heat cold mains water
GB2413841B (en) * 2004-05-07 2006-06-21 Matthew Rutherford Heat-exchange units
WO2006091173A1 (en) * 2005-02-24 2006-08-31 Ensapro Energy Saving Professionals Ab A heat exchanger
US8973178B2 (en) 2009-02-06 2015-03-10 Joulia Ag Heat exchanger
EP2453194A1 (en) * 2010-11-16 2012-05-16 Gertjan Jelle Wit de Drain provided with a heat exchanger, and shower tray or shower cubicle provided with such a drain
CN107613821A (en) * 2015-05-14 2018-01-19 国家空间研究中心.M.蒙特罗帕斯夸尔公司 For the tank and the flat surfaces of shower disc by channel drainage
EP3295846A4 (en) * 2015-05-14 2019-01-02 Cnes. M. Montero Pascual S.L. Flat surface for sinks and shower pans with drainage by means of channels
CN107613821B (en) * 2015-05-14 2021-05-28 国家空间研究中心.M.蒙特罗帕斯夸尔公司 Flat surface for sink and shower tray draining through channels
DE102022117656A1 (en) 2022-07-14 2024-01-25 Bette Gesellschaft mit beschränkter Haftung & Co. K.G. Sanitary tub installation and plumbing setup

Also Published As

Publication number Publication date
EP1204358A1 (en) 2002-05-15
SE9902923L (en) 2000-07-17
SE513165C2 (en) 2000-07-17
SE9902923D0 (en) 1999-08-17

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