EP1254343A2 - A boiler constructed using a composite material - Google Patents
A boiler constructed using a composite materialInfo
- Publication number
- EP1254343A2 EP1254343A2 EP01931476A EP01931476A EP1254343A2 EP 1254343 A2 EP1254343 A2 EP 1254343A2 EP 01931476 A EP01931476 A EP 01931476A EP 01931476 A EP01931476 A EP 01931476A EP 1254343 A2 EP1254343 A2 EP 1254343A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- boiler
- layer
- filaments
- strips
- resins
- 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
- 239000002131 composite material Substances 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 8
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 8
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 7
- 230000004927 fusion Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000009172 bursting Effects 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229920001519 homopolymer Polymers 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000013536 elastomeric material Substances 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 239000011152 fibreglass Substances 0.000 claims 1
- 238000009998 heat setting Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000002184 metal Substances 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 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
-
- 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
- F24H9/00—Details
- F24H9/40—Arrangements for preventing corrosion
- F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
-
- 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
- F24H9/00—Details
- F24H9/40—Arrangements for preventing corrosion
- F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
- F24H9/455—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means for water heaters
Definitions
- a boiler constructed using a composite material.
- the invention relates to a polymeric matrix composite material boiler for use, in particular, in a water heater.
- a first drawback of the metal boilers traditionally used in water heaters is constituted by the phenomenon of electrolytic corrosion which occurs on the internal surfaces of the said boilers.
- protective systems are adopted, such as the application of suitable internal claddings or special sacrifical or impressed current anodes.
- a further drawback of the traditional metal boilers is the negative environmental effects caused during the production phase by the use of chemical substances to prepare the metal surfaces.
- a still further drawback is constituted by the short working life of the traditional metal boilers.
- the designs proposed until now for the manufacture of synthetic material boilers for water heaters have tended, in general, to prefer materials with particular mechanical features and particular forms of structural strengthening.
- the international patent application PCT/IT97/00186 examines the use of alloy polymeric materials modified with other technical polymers since the said materials have positive mechanical stress resistance features, which are due also to the addition of reinforcing agents.
- the international patent application PCT/EP98/07982 proposes a way of reaching the considerable mechanical resistance features of a boiler for water heaters made of a synthetic material with structural reinforcing ribs. In both inventions indicated the boiler used is manufactured by means of the joining together of two or more components by welding or using adhesives.
- a first aim of this invention is to make it possible to manufacture a boiler made of a synthetic polymeric material as a single body without a structurally weak design.
- a second aim of the boiler in question in this invention is that the production costs shall be similar to those of a boiler with an identical capacity but made of metal. Further aims are constituted by the ease with which the components can be recycled and a guaranteed working life of at least ten years. Furthermore, the said aims are achieved with the least impact on the environment possible during the production phase and with the energy consumption, both during the production phase and when the water heater fitted with the boiler is in use, being extremely low in comparison with the other water heaters available on the market.
- the boiler in question in the present invention for use, in particular, in a water heater, fitted with a heating element and which is preferably, but not exclusively, electric and of the kind made entirely of a polymeric matrix composite material, is characterised by the fact that it is constituted of the two following layers, positioned one after the other in order from the inside to the outside of the said boiler:
- thermoplastic or elastomeric matrix material a first layer of thermoplastic or elastomeric matrix material, the said layer being manufactured as a single body and the said layer having characteristics which make it suitable for contact with water;
- a second layer composed of a plurality of filaments or synthetic strips wrapped around the first layer, the said filaments or strips being covered with resins which agglomerate by reticulation or fusion; the said second layer being manufactured as a single body and designed to create a structural resistance for the boiler; the said first and second layers being detachable from each other only after the said boiler has been destroyed, the said destruction being such as to allow the said boiler to be recycled at the end of its working life.
- Figures 1 shows a boiler fitted into an electric water heater
- Figure 2 shows, schematically and out of scale, a section of the boiler
- the number 1 is used to denote a water heater in which a boiler 2 is fitted.
- a heating element 3 Inside the boiler 2 is a heating element 3, of an electric kind.
- the number 4 indicates a first layer which comes into direct contact with the hot water or the water to be heated and the number 5 denotes a second layer which is outside the first.
- the first layer 4 is made of a thermoplastic matrix material constituted of polyolefinic, homopolymeric, copolymeric, metalocenic resins or PET- based resins, or PPE/PPO-based resins or even, a mixture of other compatible polymeric materials or those which have been made compatible, either semi-crystalline ones or amorphous ones.
- the first layer 4 can also be made of an elastomeric matrix material constituted of PB or PLB-based resins or even a mixture with other compatible polymers or those which have been made compatible, either semi-crystalline ones or amorphous ones.
- the two layers 4 and 5 both being in a single body, are completely detachable from each other.
- One layer 6 of the water heater 1 containing the boiler 2 is wrapped around the outside of the said boiler and is designed to provide thermal insulation for the said boiler; the layer 6 being detachable from the external surface of the second layer 5.
- a first advantage of the boiler in question in the present invention is that the second layer, designed to supply the necessary structural resistance for the said boiler, guarantees, at the least, a bursting value, when hot, of no less than 30 bar at 70°C and a number of mechanical fatigue cycles, from 1 to 8 bar, of more than the 20,000 required by the specific safety standards.
- a second advantage is constituted by the fact that the industrial cost of the boiler object of the present invention is substantially identical to that of a boiler with the same capacity but made entirely of metal.
- a further advantage is constituted by the ease with which the single components when ground up or the entire boiler unit in question in this invention can be recycled.
- a still further advantage is constituted by the low impact on the environment during the production phase and the energy consumption during both the production phase and when the said boiler is in use, which is extremely low in comparison to that of other products available on the market today.
- the boiler object of the present invention has the further advantage that its heat production levels, as well as its mechanical performance levels, are no lower than those of the metal boilers.
- a further embodiment envisages the application of a layer composed of a plurality of filaments or strips of synthetic material covered with resins which agglomerate by means of reticulation or fusion outside the said polymeric material boiler, for use, in particular, in a water heater, fitted with a heating element and which is preferably, but not exclusively, electric and characterised by the fact that it is assembled from two or more elements fitted together by welding , adhesive, or another method.
- the said covering is applied to the said composing elements when fully assembled.
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)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Reinforced Plastic Materials (AREA)
- Fats And Perfumes (AREA)
- Surface Heating Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMO000009 | 2000-02-01 | ||
IT2000MO000009A IT1315587B1 (en) | 2000-02-01 | 2000-02-01 | BOILER IN COMPOSITE MATERIAL. |
PCT/EP2001/000949 WO2001057451A2 (en) | 2000-02-01 | 2001-01-30 | A boiler constructed using a composite material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1254343A2 true EP1254343A2 (en) | 2002-11-06 |
EP1254343B1 EP1254343B1 (en) | 2004-08-25 |
Family
ID=11450329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01931476A Expired - Lifetime EP1254343B1 (en) | 2000-02-01 | 2001-01-30 | A boiler constructed using a composite material |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP1254343B1 (en) |
CN (1) | CN1397002A (en) |
AT (1) | ATE274681T1 (en) |
AU (1) | AU5824601A (en) |
DE (1) | DE60105123T2 (en) |
EG (1) | EG22652A (en) |
ES (1) | ES2227185T3 (en) |
IT (1) | IT1315587B1 (en) |
PT (1) | PT1254343E (en) |
SA (1) | SA01220037B1 (en) |
TW (1) | TW505768B (en) |
WO (1) | WO2001057451A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU169031U1 (en) * | 2016-08-11 | 2017-03-01 | Волкаст Лимитед | Accumulative, storage water heater |
TWI771168B (en) | 2021-08-27 | 2022-07-11 | 建準電機工業股份有限公司 | Cooling fan |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2904908C2 (en) * | 1979-02-09 | 1982-07-29 | Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden | Water tanks, in particular hot water pressure accumulators |
EP0565782A1 (en) * | 1992-04-15 | 1993-10-20 | FILIBERTI S.p.A. | Elliptical shaped tank for hot water in domestic plants |
DE4416487C2 (en) * | 1994-05-10 | 1998-02-19 | Kulmbacher Klimageraete | Method and arrangement for insulating device components |
ATA233494A (en) * | 1994-12-14 | 1996-04-15 | Austria Email Waermetech Gmbh | INSULATED TANK, ESPECIALLY HOT WATER TANK |
-
2000
- 2000-02-01 IT IT2000MO000009A patent/IT1315587B1/en active
-
2001
- 2001-01-16 TW TW090100919A patent/TW505768B/en not_active IP Right Cessation
- 2001-01-23 EG EG20010069A patent/EG22652A/en active
- 2001-01-30 DE DE60105123T patent/DE60105123T2/en not_active Expired - Fee Related
- 2001-01-30 CN CN01804420A patent/CN1397002A/en active Pending
- 2001-01-30 AU AU58246/01A patent/AU5824601A/en not_active Abandoned
- 2001-01-30 EP EP01931476A patent/EP1254343B1/en not_active Expired - Lifetime
- 2001-01-30 ES ES01931476T patent/ES2227185T3/en not_active Expired - Lifetime
- 2001-01-30 PT PT01931476T patent/PT1254343E/en unknown
- 2001-01-30 AT AT01931476T patent/ATE274681T1/en not_active IP Right Cessation
- 2001-01-30 WO PCT/EP2001/000949 patent/WO2001057451A2/en active IP Right Grant
- 2001-04-07 SA SA01220037A patent/SA01220037B1/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO0157451A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2001057451A3 (en) | 2002-03-07 |
EG22652A (en) | 2003-05-31 |
DE60105123T2 (en) | 2005-09-01 |
ATE274681T1 (en) | 2004-09-15 |
SA01220037B1 (en) | 2006-09-05 |
CN1397002A (en) | 2003-02-12 |
PT1254343E (en) | 2005-01-31 |
ITMO20000009A1 (en) | 2001-08-01 |
ES2227185T3 (en) | 2005-04-01 |
EP1254343B1 (en) | 2004-08-25 |
DE60105123D1 (en) | 2004-09-30 |
TW505768B (en) | 2002-10-11 |
AU5824601A (en) | 2001-08-14 |
IT1315587B1 (en) | 2003-03-14 |
WO2001057451A2 (en) | 2001-08-09 |
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