WO1986003280A1 - Solar water heater - Google Patents

Solar water heater Download PDF

Info

Publication number
WO1986003280A1
WO1986003280A1 PCT/AU1985/000285 AU8500285W WO8603280A1 WO 1986003280 A1 WO1986003280 A1 WO 1986003280A1 AU 8500285 W AU8500285 W AU 8500285W WO 8603280 A1 WO8603280 A1 WO 8603280A1
Authority
WO
WIPO (PCT)
Prior art keywords
collector
water heater
solar water
tank
storage tank
Prior art date
Application number
PCT/AU1985/000285
Other languages
French (fr)
Inventor
Kenneth George Williamson
Keith Stuart Pamplin Graham
Original Assignee
K. And K. Holdings Pty. Ltd.
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 K. And K. Holdings Pty. Ltd. filed Critical K. And K. Holdings Pty. Ltd.
Priority to BR8507091A priority Critical patent/BR8507091A/en
Priority to IN933/MAS/85A priority patent/IN166333B/en
Publication of WO1986003280A1 publication Critical patent/WO1986003280A1/en
Priority to MYPI87000336A priority patent/MY101715A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/40—Casings
    • F24S80/45—Casings characterised by the material
    • F24S80/457—Casings characterised by the material made of plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Definitions

  • THIS INVENTION relates to a solar water heater.
  • the object of the invention is to provide a solar water heater which is simple to construct in relation to existing designs of solar water heaters.
  • the majority of solar water heater units in production at the present time comprise a collector and a separate tank which may be located close to the upper end of the collector or remote therefrom.
  • the production of these units and particularly the collector is labour intensive.
  • the invention resides in a solar water heater in which the collector and the tank are formed integrally as a single unit.
  • the surface of the collector exposed to the sun should be covered with glass in the normal manner and the underside of the collector and the tank suitably insulated with a suitable insulating material such as polyurethane foam.
  • the exposed surface of the collector may be ribbed parallel to the sides to increase the contact area, promote upward convective flow and stiffen the surface.
  • the collector portion of the integral unit may be wedge shaped, the mouth of the wedge merging with the tank portion which is circular in cross section.
  • the upper and lower surfaces of the collector portion may be parallel. In each case the surface of the collector which is exposed to solar radiation is in direct contact with the water.
  • the unit of the present invention be formed of a suitable plastic material such as polypropylene using a roto-moulding technique.
  • Any one of a wide range of plastics which retain their strength and rigidity at temperature of the order of 30° - 90°C, and which are substantially unaffected by prolonged exposure to the sun and other elements may be used.
  • Fig. 1 is an isometric view of one embodiment of the invention
  • Fig. 2 is a sectional side elevation of the embodiment of Fig. 1;
  • Fig. 3 is a fragmentary sectional view showing details of construction of the first embodiment.
  • Fig. 4. is a sectional elevation of a second embodiment.
  • the unit is moulded from polypropylene compounded with suitable pigments and UV retarders.
  • the collector 11 has a parallel upper and lower faces when viewed in side elevation and the upper surface thereof covered with a sheet of glass 12.
  • the upper end of the collector merges with and is integral with a tank 14 which is generally circular in cross section.
  • the collector is provided with a water inlet 15 adjacent the end of the collector remote from the tank.
  • the water inlet is connected to a water supply through a header tank fitted with a float control valve or some similar low pressure source.
  • the tank has a hot water outlet 16 which is located in the upper half of the tank portion of the unit and in addition a relief vent to relieve any undue build up of pressure in the unit.
  • the body of the unit is provided with insulation 18 on all surfaces except the surface of the collector portion.
  • the insulation is encased in a metal casing 19 whilst the absorption surface is covered with the sheet of glass 12.
  • the collector portion 21 is formed as a wedge shape which merges with the tank 22.
  • the two embodiments described above are for particularly suitable for production from a plastic material such as polypropylene by a roto-moulding technique. It may also be fabricated from metal or other suitable materials.
  • the unit of the present invention is particularly suitable for use in areas having a high ambient temperature. It may be used to supply hot water directly or as a preheating unit for other types of low pressure hot water storage units.

Abstract

A solar water heater comprising a collector (11) and a storage tank (14) characterised in that the collector (11) and the storage tank (14) are formed integrally as a single unit. The heater may be formed of suitable plastics material by a roto-moulding technique.

Description

"Solar Water Heater"
THIS INVENTION relates to a solar water heater.
The object of the invention is to provide a solar water heater which is simple to construct in relation to existing designs of solar water heaters. The majority of solar water heater units in production at the present time comprise a collector and a separate tank which may be located close to the upper end of the collector or remote therefrom. The production of these units and particularly the collector is labour intensive.
It has now been found that if the collector and the tank are formed integrally as a single unit from a suitable material there are significant reductions in cost.
Thus in one form the invention resides in a solar water heater in which the collector and the tank are formed integrally as a single unit.
It will be appreciated that the surface of the collector exposed to the sun should be covered with glass in the normal manner and the underside of the collector and the tank suitably insulated with a suitable insulating material such as polyurethane foam.
If desired the exposed surface of the collector may be ribbed parallel to the sides to increase the contact area, promote upward convective flow and stiffen the surface.
The collector portion of the integral unit may be wedge shaped, the mouth of the wedge merging with the tank portion which is circular in cross section. Alternatively the upper and lower surfaces of the collector portion may be parallel. In each case the surface of the collector which is exposed to solar radiation is in direct contact with the water.
It is preferable that the unit of the present invention be formed of a suitable plastic material such as polypropylene using a roto-moulding technique.
Any one of a wide range of plastics which retain their strength and rigidity at temperature of the order of 30° - 90°C, and which are substantially unaffected by prolonged exposure to the sun and other elements may be used.
The invention will be better understood by reference to the following description of one specific embodiment shown in the accompanying drawings of which:
Fig. 1 is an isometric view of one embodiment of the invention;
Fig. 2 is a sectional side elevation of the embodiment of Fig. 1;
Fig. 3 is a fragmentary sectional view showing details of construction of the first embodiment; and
Fig. 4. is a sectional elevation of a second embodiment.
As shown in Figs. 1, 2 and 3 of the drawing the unit is moulded from polypropylene compounded with suitable pigments and UV retarders. The collector 11 has a parallel upper and lower faces when viewed in side elevation and the upper surface thereof covered with a sheet of glass 12. The upper end of the collector merges with and is integral with a tank 14 which is generally circular in cross section. The collector is provided with a water inlet 15 adjacent the end of the collector remote from the tank. The water inlet is connected to a water supply through a header tank fitted with a float control valve or some similar low pressure source. The tank has a hot water outlet 16 which is located in the upper half of the tank portion of the unit and in addition a relief vent to relieve any undue build up of pressure in the unit.
As will be seen from Fig. 3 of the drawings the body of the unit is provided with insulation 18 on all surfaces except the surface of the collector portion. The insulation is encased in a metal casing 19 whilst the absorption surface is covered with the sheet of glass 12.
In the embodiment shown in Fig. 4 of the drawings, the collector portion 21 is formed as a wedge shape which merges with the tank 22.
The two embodiments described above are for particularly suitable for production from a plastic material such as polypropylene by a roto-moulding technique. It may also be fabricated from metal or other suitable materials.
It has been found that the unit of the present invention is particularly suitable for use in areas having a high ambient temperature. It may be used to supply hot water directly or as a preheating unit for other types of low pressure hot water storage units.

Claims

THE CLAIMS defining the invention are as follows:
1. A solar water heater comprising a collector and a storage tank characterised in that the collector and the storage tank are formed integrally as a single unit.
2. A solar water heater as claimed in claim 1 wherein the upper and lower surfaces of the collector portion are parallel.
3. A solar water heater as claimed in claim 1 wherein the collector portion is wedge shaped in section with the wider portion of the wedge merging with the tank.
4. A solar water heater as claimed in claim 1, 2 or 3 formed from a suitable plastic material by a roto-moulding technique.
5. A solar water heater as claimed in any one of claims 1 to 4 wherein the upper surface of the collector is ribbed.
6. A solar water heater substantially as herein described and as shown in Fig. 1, 2 and 3 of the drawings.
7. A solar water heater substantially as herein described and as shown in Fig. 4 of the drawings.
PCT/AU1985/000285 1984-11-19 1985-11-18 Solar water heater WO1986003280A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR8507091A BR8507091A (en) 1984-11-19 1985-11-18 SOLAR WATER HEATER
IN933/MAS/85A IN166333B (en) 1984-11-19 1985-11-19
MYPI87000336A MY101715A (en) 1984-11-19 1987-03-20 Solar water heater

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPG8188 1984-11-19
AUPG818884 1984-11-19

Publications (1)

Publication Number Publication Date
WO1986003280A1 true WO1986003280A1 (en) 1986-06-05

Family

ID=3770845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1985/000285 WO1986003280A1 (en) 1984-11-19 1985-11-18 Solar water heater

Country Status (6)

Country Link
EP (1) EP0204734A4 (en)
JP (1) JPS62500880A (en)
BR (1) BR8507091A (en)
IN (1) IN166333B (en)
MY (1) MY101715A (en)
WO (1) WO1986003280A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29621326U1 (en) * 1996-12-07 1997-02-06 Heimann Frank Dipl Ing Fh Device for the solar heating of liquids
DE102006041202A1 (en) * 2006-09-02 2008-03-20 Franz Seitz Solar module device, has cover surface connected with base surface using side surfaces, and cover surface with two flat partial surfaces, which are arranged to base surface in pointed angle
GR1006760B (en) * 2009-04-03 2010-04-21 Θεοδωρος Στυλιανου Παπαδοπουλος 3d solar radiator enhanced with photovoltaic cells for heating swimming pools and greenhouses
WO2010103255A2 (en) * 2009-03-09 2010-09-16 David Osborne Solar panel for water heating
WO2018226084A1 (en) * 2017-06-09 2018-12-13 Martinez Silva Jorge Adrian Storage tank for solar heaters

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5538402A (en) * 1978-09-08 1980-03-17 Asahi Glass Co Ltd Solar warmer
JPS56102649A (en) * 1980-01-19 1981-08-17 Besuto Kogyo Kk Solar water heater
US4284066A (en) * 1980-06-04 1981-08-18 Brow Robert J Solar liquid heater
AU7667181A (en) * 1980-10-23 1982-04-29 Bio-Energy Systems Inc. Solar thermosyphon water heater
WO1982002087A1 (en) * 1980-12-08 1982-06-24 John Delacretaz Solar collector
US4367726A (en) * 1979-02-22 1983-01-11 Environmental Research Institute Of Michigan Solar hot water heater
AU2159583A (en) * 1982-11-24 1984-05-31 Solar Engineering Pty. Ltd. Solar fluid heater

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165735A (en) * 1977-10-25 1979-08-28 Smith Harold T Solar energy collector and storage device
IL54851A (en) * 1978-06-02 1982-02-28 Amcor Bm Solar water heater assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5538402A (en) * 1978-09-08 1980-03-17 Asahi Glass Co Ltd Solar warmer
US4367726A (en) * 1979-02-22 1983-01-11 Environmental Research Institute Of Michigan Solar hot water heater
JPS56102649A (en) * 1980-01-19 1981-08-17 Besuto Kogyo Kk Solar water heater
US4284066A (en) * 1980-06-04 1981-08-18 Brow Robert J Solar liquid heater
AU7667181A (en) * 1980-10-23 1982-04-29 Bio-Energy Systems Inc. Solar thermosyphon water heater
WO1982002087A1 (en) * 1980-12-08 1982-06-24 John Delacretaz Solar collector
AU2159583A (en) * 1982-11-24 1984-05-31 Solar Engineering Pty. Ltd. Solar fluid heater

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Building Research & Practice, Volume 14, No. 4, July/August 1981 (Batiment Interational) J.A. BASSON, 'An Integral Solar Water Heater', see pages 236 to 247 *
See also references of EP0204734A4 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29621326U1 (en) * 1996-12-07 1997-02-06 Heimann Frank Dipl Ing Fh Device for the solar heating of liquids
DE102006041202A1 (en) * 2006-09-02 2008-03-20 Franz Seitz Solar module device, has cover surface connected with base surface using side surfaces, and cover surface with two flat partial surfaces, which are arranged to base surface in pointed angle
DE102006041202B4 (en) * 2006-09-02 2009-12-03 Franz Seitz Solar module device
WO2010103255A2 (en) * 2009-03-09 2010-09-16 David Osborne Solar panel for water heating
WO2010103255A3 (en) * 2009-03-09 2011-01-06 David Osborne Solar panel for water heating
GR1006760B (en) * 2009-04-03 2010-04-21 Θεοδωρος Στυλιανου Παπαδοπουλος 3d solar radiator enhanced with photovoltaic cells for heating swimming pools and greenhouses
WO2018226084A1 (en) * 2017-06-09 2018-12-13 Martinez Silva Jorge Adrian Storage tank for solar heaters

Also Published As

Publication number Publication date
MY101715A (en) 1992-01-17
IN166333B (en) 1990-04-14
EP0204734A1 (en) 1986-12-17
EP0204734A4 (en) 1987-04-14
JPS62500880A (en) 1987-04-09
BR8507091A (en) 1987-03-31

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