GB2295666A - Shower using waste heat - Google Patents
Shower using waste heat Download PDFInfo
- Publication number
- GB2295666A GB2295666A GB9521225A GB9521225A GB2295666A GB 2295666 A GB2295666 A GB 2295666A GB 9521225 A GB9521225 A GB 9521225A GB 9521225 A GB9521225 A GB 9521225A GB 2295666 A GB2295666 A GB 2295666A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conduit
- shower
- water
- heat
- conduits
- 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- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
-
- 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
-
- 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
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Bathtubs, Showers, And Their Attachments (AREA)
Abstract
In a shower arrangement comprising a shower head and a shower floor pan, a first conduit 1 for supplying water to said shower head and a second conduit 2 for draining waste water from said shower pan, a portion of the first conduit 1 is disposed within the second conduit 2 in heat-exchange relationship for exchange of heat between waste water in the second conduit and water in the first conduit, whereby to heat water in said first conduit. The conduits are coaxial tubes arranged in a spiral. The inner (supply) tube is corrugated to improve heat-exchange and mounted via spiders in the outer tube. <IMAGE>
Description
SHOWER ECONOMISER PREHEATER
This invention is concerned with improvements in and relating to shower baths and, more particularly, is concerned with an economiser preheater for use in a shower bath, or a shower bath provided therewith, whereby to economise on the use of heat energy.
Basically, the invention provides a shower arrangement comprising a shower head and a shower floor pan, first conduit means for supplying water to said shower head and second conduit means for draining waste from said shower pan, characterised in that a portion of the first conduit means is disposed within second conduit means in heat-exchange relationship for exchange of heat between waste water in the second conduit and water in the first conduit, whereby to heat water in said first conduit.
In accordance with a preferred embodiment of the invention, the first and second conduits are elongate conduits, the portion wherein said first and second conduits are in heat-exchange relationship being an extended elongate portion, e.g. having a length of from 5 to 10 metres, preferably 6 to 8 metres, whereby to allow for improved heat exchange between the two conduits.
Suitably, the first and second conduits are arranged in heat-exchange relationship in a manner such that said first conduit extends generally coaxially within and along the length of a portion of said second conduit.
The desired length of conduit in heat-relationship with each other can suitably be achieved by arranging the conduits in a serpentine, helical or like elongate curve form. The conduit may, for example, be arranged below the floor pan of the shower or, where the shower head is located above a bath, below that bath.
As will be appreciated water passing from the first conduit to the shower head may be further heated, after preheating in accordance with the invention, by conventional heating means which may, for example, be gas or electrical heating means. Alternatively, a separate supply of hot water may be fed to the shower head, or mixing means preceeding it, for admixture with the preheated (originally cold) water fed in a conduit 1.
In order that the invention may be well understood reference will now be made to the accompanying drawings in which:
The economiser system of the invention has the advantages that it may be retro-fitted to an existing shower installation since it requires no structural alteration to an already existing system.
Fig. 1 is a vertical cross-section through a shower arrangement in accordance with the invention,
Fig. 2 is a section through the line A-B in Fig. 1;
Fig. 3 is a fragmentary illustration, on an enlarged scale, of the relationship between the first and second conduits; and
Fig. 4 illustrates the use of a "spider" to support the first conduit within the second conduit.
As shown in the drawings a shower arrangement comprises a floor pan having a drain hole 5 connected with drain conduit 2 which is arranged in a generally spiral configuration below the floor of the shower pan before being connected to exterior drain plumbing (not shown). Water is supplied to a water heater, and thence to a shower head above the shower pan via a conduit 1 from water supply means not shown; conduit 1 being, for the greater part of its length, coaxially located in conduit 2 so that water flowing through conduit 1 will flow in counter-cu ent relationship to water exiting the shower pan via conduit 2.
The wall of the inner conduit 1 is preferably corrugated in order to maximise its transmission properties, and hence improve heat-exchange. The inner conduit 1 is maintained concentrically within the outer conduit 2 via a number of spiders 3 spaced at intervals along the length of conduit 2. The arms 4 of the spiders 3 have the form of vanes set at an angle to the axis of the pipes, thereby imparting a swirling motion to the waste water and maximising the rate of its heat transfer to the inner conduit 1. The inlets and outlet 6 of the exit conduit 2 are preferably both located at levels sufficient to ensure that the conduit is always full of water (flooded).
Claims (3)
1. A shower arrangement comprising a shower head and a shower floor pan, first conduit means for supplying water to said shower head and said second conduit means for draining waste water from said shower pan, characterised in that a portion of the first conduit means is disposed within said second conduit means in heat-exchange relationship for exchange of heat between waste water in the second conduit and water in the first conduit, whereby to heat water in said first conduit.
2. A shower arrangement as claimed in claim 1 in which said second conduits are elongate conduits, with the first conduit generally coaxially disposed within said second conduit for a part of the length of the two conduits.
3. A shower arrangement as claimed in claim 1 or claim 2 substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9421320A GB9421320D0 (en) | 1994-10-19 | 1994-10-19 | Shower with economiser preheater |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9521225D0 GB9521225D0 (en) | 1995-12-20 |
GB2295666A true GB2295666A (en) | 1996-06-05 |
Family
ID=10763245
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9421320A Pending GB9421320D0 (en) | 1994-10-19 | 1994-10-19 | Shower with economiser preheater |
GB9521225A Withdrawn GB2295666A (en) | 1994-10-19 | 1995-10-17 | Shower using waste heat |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9421320A Pending GB9421320D0 (en) | 1994-10-19 | 1994-10-19 | Shower with economiser preheater |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB9421320D0 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0814312A3 (en) * | 1996-06-17 | 1999-06-02 | KME Schmöle GmbH | Process for the manufacture of coaxial coiled tubes and heat exchanger with coaxial coiled tubes |
GB2342146A (en) * | 1998-08-21 | 2000-04-05 | Robert Findlay | Heat exchanger |
NL1014030C2 (en) * | 2000-01-06 | 2001-07-09 | Hei Tech Bv | Heat exchanger for extracting heat energy from waste water and transferring it to fresh water used for domestic purposes |
GB2376517A (en) * | 2001-04-21 | 2002-12-18 | Lubor Schiller | Energy recovery system |
WO2006045153A1 (en) * | 2004-10-27 | 2006-05-04 | Robert Mason | Heat recovery system |
GB2431102A (en) * | 2005-10-12 | 2007-04-18 | Matthew Stephen Rutherford | Flow separating member for heat exchanger in shower tray |
WO2009101161A2 (en) | 2008-02-12 | 2009-08-20 | Patrick Gilbert | Heat exchange devices |
CN102216716A (en) * | 2008-08-26 | 2011-10-12 | 帕特里克·吉尔伯特 | Heat exchange devices |
ITVR20120192A1 (en) * | 2012-09-28 | 2014-03-29 | Spinazza S N C Di Spinazza Robert O E Daniele | EQUIPMENT FOR RECOVERY OF DISCHARGE WATER HEAT |
US8973178B2 (en) | 2009-02-06 | 2015-03-10 | Joulia Ag | Heat exchanger |
CN104422133B (en) * | 2013-08-19 | 2018-09-11 | 珠海格力电器股份有限公司 | Hot water system and control method of water mixing valve thereof |
EP4116629A1 (en) * | 2021-07-06 | 2023-01-11 | Schmöle GmbH | Device and method for recovery of heat from water |
GB2624235A (en) * | 2022-11-11 | 2024-05-15 | Kohler Mira Ltd | Plumbing or Ablutionary System |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1574327A (en) * | 1977-04-19 | 1980-09-03 | Inst De Pesquisas E Aperfeicoa | Waste heat utilization |
GB2052698A (en) * | 1979-03-21 | 1981-01-28 | Burns L | Domestic Hot Water Supply |
US4300247A (en) * | 1980-05-07 | 1981-11-17 | Berg Charles A | Energy conservation in shower bathing |
US4304292A (en) * | 1979-07-16 | 1981-12-08 | Cardone Jeremiah V | Shower |
US4372372A (en) * | 1981-01-26 | 1983-02-08 | Raymond Hunter | Shower bath economizer |
AU2209892A (en) * | 1991-09-03 | 1993-03-11 | Donald Lyall McAllister | Improvements to heat recovery apparatus |
-
1994
- 1994-10-19 GB GB9421320A patent/GB9421320D0/en active Pending
-
1995
- 1995-10-17 GB GB9521225A patent/GB2295666A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1574327A (en) * | 1977-04-19 | 1980-09-03 | Inst De Pesquisas E Aperfeicoa | Waste heat utilization |
GB2052698A (en) * | 1979-03-21 | 1981-01-28 | Burns L | Domestic Hot Water Supply |
US4304292A (en) * | 1979-07-16 | 1981-12-08 | Cardone Jeremiah V | Shower |
US4300247A (en) * | 1980-05-07 | 1981-11-17 | Berg Charles A | Energy conservation in shower bathing |
US4372372A (en) * | 1981-01-26 | 1983-02-08 | Raymond Hunter | Shower bath economizer |
AU2209892A (en) * | 1991-09-03 | 1993-03-11 | Donald Lyall McAllister | Improvements to heat recovery apparatus |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0814312A3 (en) * | 1996-06-17 | 1999-06-02 | KME Schmöle GmbH | Process for the manufacture of coaxial coiled tubes and heat exchanger with coaxial coiled tubes |
GB2342146A (en) * | 1998-08-21 | 2000-04-05 | Robert Findlay | Heat exchanger |
NL1014030C2 (en) * | 2000-01-06 | 2001-07-09 | Hei Tech Bv | Heat exchanger for extracting heat energy from waste water and transferring it to fresh water used for domestic purposes |
GB2376517A (en) * | 2001-04-21 | 2002-12-18 | Lubor Schiller | Energy recovery system |
GB2376517B (en) * | 2001-04-21 | 2003-05-07 | Lubor Schiller | Energy recovery system |
WO2006045153A1 (en) * | 2004-10-27 | 2006-05-04 | Robert Mason | Heat recovery system |
GB2431102A (en) * | 2005-10-12 | 2007-04-18 | Matthew Stephen Rutherford | Flow separating member for heat exchanger in shower tray |
GB2431102B (en) * | 2005-10-12 | 2008-01-23 | Matthew Stephen Rutherford | Vessel-filling arrangements |
WO2009101161A2 (en) | 2008-02-12 | 2009-08-20 | Patrick Gilbert | Heat exchange devices |
WO2009101161A3 (en) * | 2008-02-12 | 2010-06-10 | Patrick Gilbert | Heat exchange devices |
JP2011511920A (en) * | 2008-02-12 | 2011-04-14 | ギルバート,パトリック | Heat exchanger |
US8893319B2 (en) | 2008-02-12 | 2014-11-25 | Patrick Gilbert | Heat exchange devices |
CN102216716A (en) * | 2008-08-26 | 2011-10-12 | 帕特里克·吉尔伯特 | Heat exchange devices |
CN102216716B (en) * | 2008-08-26 | 2015-07-01 | 帕特里克·吉尔伯特 | Heat exchange devices |
US8973178B2 (en) | 2009-02-06 | 2015-03-10 | Joulia Ag | Heat exchanger |
ITVR20120192A1 (en) * | 2012-09-28 | 2014-03-29 | Spinazza S N C Di Spinazza Robert O E Daniele | EQUIPMENT FOR RECOVERY OF DISCHARGE WATER HEAT |
CN104422133B (en) * | 2013-08-19 | 2018-09-11 | 珠海格力电器股份有限公司 | Hot water system and control method of water mixing valve thereof |
EP4116629A1 (en) * | 2021-07-06 | 2023-01-11 | Schmöle GmbH | Device and method for recovery of heat from water |
GB2624235A (en) * | 2022-11-11 | 2024-05-15 | Kohler Mira Ltd | Plumbing or Ablutionary System |
Also Published As
Publication number | Publication date |
---|---|
GB9521225D0 (en) | 1995-12-20 |
GB9421320D0 (en) | 1994-12-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |