EP0668984A1 - Self-supporting water heater, adapted to be made of plastic material - Google Patents
Self-supporting water heater, adapted to be made of plastic materialInfo
- Publication number
- EP0668984A1 EP0668984A1 EP94926228A EP94926228A EP0668984A1 EP 0668984 A1 EP0668984 A1 EP 0668984A1 EP 94926228 A EP94926228 A EP 94926228A EP 94926228 A EP94926228 A EP 94926228A EP 0668984 A1 EP0668984 A1 EP 0668984A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- water heater
- plastic material
- self
- faces
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 title claims abstract description 26
- 229920003023 plastic Polymers 0.000 title claims abstract description 25
- 239000004033 plastic Substances 0.000 title claims abstract description 25
- 239000011810 insulating material Substances 0.000 claims abstract description 11
- -1 polyethylene Polymers 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/181—Construction of the tank
Definitions
- the present invention deals with a self- bearing water heater, adapted to be made of plastic material .
- available water heaters made of sheet, galvanized and/or enameled, are generally composed of a cylindrical body, vertically placed, above and below which respective caps are applied, that are slightly crowned to complete the body. This is for
- Object of the present invention is solving the above inconveniences, providing a simple and practical water heater, of a particular shape, made of suitable plastic material, that among other things provides the following advantages:
- a further major characteristic of the water heater of the invention is that on the shorter bottom face of the first container, there are assembled, in addition to the typical water heater elements like resistance and outlet pipe for hot water, a safety valve and a pressure reducer, the latter one being adapted to reduce pressure inside the container and to avoid possible water hammers, with clear, obvious benefits for water heater operation and life, under maximum safety conditions.
- a further characteristic of the water heater of the invention is that said hollow "pulling ducts", running perpendicular to the wider container faces, are adapted to make mechanical members pass through them, like tie rods and/or bolts to secure the container itself to the wall or
- the internal container is obtained in a single piece in suitable plastic material, such as polyethylene or polypropylene; the external container being made of ABS and the insulating material being foamed polyurethan.
- the internal container made of suitable plastic material like polyethylene or polypropylene, is obtained in two pieces, or opposed shells, joined together making their respective edges and the "pulling ducts" of each shell mate; sealing of said two shells being obtained adequately shaping said edges to allow a suitable matching thereof, downstream of which a gasket is provided running for the whole container periphery, and joining together with suitable securing means or bolts said edges, and, with suitable gaskets, the "pulling ducts" of each shell; the external container being made of ABS and the insulating material being foamed polyurethan.
- both the first and the second embodiment can be obtained through injection molding, vacuum molding, or by blowing suitable plastic material.
- FIG. 1 is a front elevation view of the internal container of the water heater of the invention, with the external container in section;
- FIG. 2 is a side elevation view of the internal container of the water heater, with the external container in section;
- FIG. 3 is a section made along line I Il ⁇ III in Fig. 2;
- FIG. 4 is a section made along line IV-IV in Fig. 1 ;
- - Figure 5 is an external front view of the water heater of the invention
- - Figure 6 is a front view of the internal container sorrounded by a stiffening tape network system
- FIG. 7 is a front elevation view of a second embodiment of the internal container
- FIG. 8 is a section made along line VIII- VI I I i n F i g . 7 ;
- FIG. 9 is a partially enlarged view of the edge junction.
- the water heater of the invention is substantially composed of: a first, or internal container 1 made of suitable plastic material and a second, or external container 3 also made of suitable plastic material in which the first, or internal container 1 is placed after having inserted -suitable insulating material 5 between the two containers 1 and 3.
- the first container 1 is shaped as a parallelepiped, with rectangular section, where the two greater faces 7 (front and rear ones) are crossed and connected by a plurality of hollow ducts 9 perpendicular to said faces 7, running as tie rods from one face to the other.
- a plurality of notches 11 is provided in each face 7 next to each duct 9. Said faces 7 are furrowed by a plurality of external grooves 13 perpendicular to the sides and intersecting said notches 11, running as a ring on the whole periphery of the body 1 section and composing, with the above pulling ducts 9, the container 1 rib.
- the second container 3 is shaped as a parallelepiped, with rectangular section, adequately thick, adapted to house the first container 1 inside it; the clearance provided between said first and said second container being, as already said, adequately filled with insulating material 5, like foamed plastic material.
- a safety valve 23 and a pressure reducer 25 On the shorter bottom face 15 of the first container 1, there are assembled, in addition to the typical water heater elements like resistance 19 and outlet pipe 21 for hot water, a safety valve 23 and a pressure reducer 25, the latter one being adapted to reduce pressure inside the container and to avoid possible water hammers, with clear, obvious advantages for water heater operation and
- a temperature gauge 27 is provided on a (front) face 29 of the second container 3.
- hollow pulling ducts 9, running perpendicular to the wider faces 7 of the container 1, are adapted to make mechanical members pass through them, like tie rods and/or bolts to secure the container itself to the wall or for other purposes, some of which will be specified belo .
- the internal container is obtained in a single piece in suitable plastic material, such as polyethylene or polypropylene; the external container being preferably made of ABS and the insulating material being preferably foamed polyurethan.
- the internal container made of suitable plastic material like polyethylene or polypropylene, is obtained in two pieces 31, or opposed shells, joined together making their respective edges 33 and the "pulling ducts" 35 of each shell mate; sealing of said two shells 31 being obtained adequately shaping said edges 33 to allow a suitable matching thereof, downstream of which a gasket 37 is provided running for the whole container periphery, and joining with suitable securing means or bolts 39 said edges 33, and, with suitable gaskets, the "pulling ducts" 35 of each she .
- the plastic material preferably used for the second container 3 is ABS and the insulating material 5 provided in the
- hollow space between first container 1 and second container 3 is preferably foamed polyurethan.
- the internal container 1 is designed in a suitable plastic material with such thickness as to guarantee an easy and safe operation under the various recurring operating conditions; however, for greater safety, a further safety element is provided applied to said internal container 1; this element is composed of a fencing with tapes 41, strap-type, running along the external grooves of the container itself and creating a network element around it. Said tapes 41 are adequately joined together, for example through bolts 43 or the like.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Packages (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Air Humidification (AREA)
- Cookers (AREA)
- Laminated Bodies (AREA)
- Details Of Fluid Heaters (AREA)
- Resistance Heating (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO930684A IT1261870B (en) | 1993-09-17 | 1993-09-17 | SELF-SUPPORTING WATER HEATER, SUITABLE TO BE CONSTITUTED IN PLASTIC MATERIAL. |
ITTO930684 | 1993-09-17 | ||
PCT/EP1994/002900 WO1995008085A1 (en) | 1993-09-17 | 1994-09-01 | Self-bearing water heater, adapted to be made of plastic material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0668984A1 true EP0668984A1 (en) | 1995-08-30 |
EP0668984B1 EP0668984B1 (en) | 1997-12-29 |
Family
ID=11411740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94926228A Expired - Lifetime EP0668984B1 (en) | 1993-09-17 | 1994-09-01 | Self-supporting water heater, adapted to be made of plastic material |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0668984B1 (en) |
AT (1) | ATE161619T1 (en) |
AU (1) | AU7614994A (en) |
BR (1) | BR9405595A (en) |
DE (1) | DE69407562D1 (en) |
IT (1) | IT1261870B (en) |
WO (1) | WO1995008085A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000043716A1 (en) | 1999-01-21 | 2000-07-27 | Goitre, Tiziana | A self-supporting plastic material water heater |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59705030D1 (en) * | 1996-05-03 | 2001-11-29 | Kaldewei Franz Gmbh & Co | Hot water tank with an inner tank |
SE518211C2 (en) * | 1999-12-15 | 2002-09-10 | Swep Int Ab | Hot water heater comprising a plate heat exchanger and a storage container |
DE102005049257A1 (en) * | 2005-10-14 | 2007-04-26 | Webasto Product Italy Spa, Colturano | Hot water storage |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH425147A (en) * | 1965-10-28 | 1966-11-30 | Therma Ag | Thin-walled pressure vessel and method of making the same |
DE3011426A1 (en) * | 1980-03-25 | 1981-10-01 | Schneider, Helmhold, 5230 Altenkirchen | PLASTIC HEAT STORAGE, ESPECIALLY FOR HOT WATER STORAGE IN THE HOUSEHOLD TECHNICAL AREA AND THE LIKE, AND METHOD FOR THE PRODUCTION THEREOF |
DE8431098U1 (en) * | 1983-11-22 | 1985-04-11 | Gentili, Vittorio, Bologna | PORTABLE, CAN-TANKED CONTAINER WITH PALLETIZABLE COVER |
DE3710264A1 (en) * | 1987-03-28 | 1988-10-13 | Gerhard Rambacher | Plastic container |
DE9108101U1 (en) * | 1991-07-02 | 1991-08-29 | Gebr. Jacobs Gmbh & Co Kg, 5600 Wuppertal, De | |
DE4216633C2 (en) * | 1992-05-20 | 1996-03-21 | Mn Heizungsmontage Gmbh | Hot water tank |
-
1993
- 1993-09-17 IT ITTO930684A patent/IT1261870B/en active IP Right Grant
-
1994
- 1994-09-01 BR BR9405595-5A patent/BR9405595A/en not_active Application Discontinuation
- 1994-09-01 WO PCT/EP1994/002900 patent/WO1995008085A1/en active IP Right Grant
- 1994-09-01 EP EP94926228A patent/EP0668984B1/en not_active Expired - Lifetime
- 1994-09-01 AT AT94926228T patent/ATE161619T1/en not_active IP Right Cessation
- 1994-09-01 DE DE69407562T patent/DE69407562D1/en not_active Expired - Lifetime
- 1994-09-01 AU AU76149/94A patent/AU7614994A/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO9508085A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000043716A1 (en) | 1999-01-21 | 2000-07-27 | Goitre, Tiziana | A self-supporting plastic material water heater |
Also Published As
Publication number | Publication date |
---|---|
BR9405595A (en) | 1999-09-08 |
ITTO930684A0 (en) | 1993-09-17 |
ATE161619T1 (en) | 1998-01-15 |
AU7614994A (en) | 1995-04-03 |
ITTO930684A1 (en) | 1995-03-17 |
DE69407562D1 (en) | 1998-02-05 |
IT1261870B (en) | 1996-06-03 |
EP0668984B1 (en) | 1997-12-29 |
WO1995008085A1 (en) | 1995-03-23 |
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