CN1112549C - Water heater apparatus made of plastic, in particular pressurized water heater tank - Google Patents
Water heater apparatus made of plastic, in particular pressurized water heater tank Download PDFInfo
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- CN1112549C CN1112549C CN97197691A CN97197691A CN1112549C CN 1112549 C CN1112549 C CN 1112549C CN 97197691 A CN97197691 A CN 97197691A CN 97197691 A CN97197691 A CN 97197691A CN 1112549 C CN1112549 C CN 1112549C
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- water heater
- described water
- mixture
- boiler body
- water heaters
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 239000004033 plastic Substances 0.000 title claims abstract description 13
- 229920003023 plastic Polymers 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 56
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 23
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000012815 thermoplastic material Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 229920000642 polymer Polymers 0.000 claims description 10
- 239000004416 thermosoftening plastic Substances 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 8
- 239000004952 Polyamide Substances 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 7
- 229920002647 polyamide Polymers 0.000 claims description 7
- 238000005728 strengthening Methods 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- MBDUIEKYVPVZJH-UHFFFAOYSA-N 1-ethylsulfonylethane Chemical compound CCS(=O)(=O)CC MBDUIEKYVPVZJH-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- 238000004040 coloring Methods 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 239000007822 coupling agent Substances 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 238000004079 fireproofing Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 230000007774 longterm Effects 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 239000004579 marble Substances 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 229920002492 poly(sulfone) Polymers 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 claims 1
- 239000002861 polymer material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 10
- 238000000576 coating method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 229910000851 Alloy steel Inorganic materials 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 206010011906 Death Diseases 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009998 heat setting Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000005827 chlorofluoro hydrocarbons Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 229920006345 thermoplastic polyamide Polymers 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- 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
-
- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
- F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Details Of Fluid Heaters (AREA)
- Cookers (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention relates to a water heater apparatus (11) made of plastic material, in particular a pressurised water heater tank, comprising a boiler body (12) made of a thermoplastic polymer material, an insulation (13) arranged externally to said boiler body (12) made of a material which is compatible or made compatible to the material of the boiler body (12), and a shell (14) which is external of the insulation (13), preferably also made of a material which is compatible or made compatible to the material of the boiler body (12).
Description
Technical field
The present invention relates to water heater made of plastic, special but be not limited to as withstand voltage water heater tank.This whole device is made of plastic.
Background technology
As everyone knows, electric heater and boiler are generally made with the steel tube, its cylindrical portion hot rolling, upward lower wall portion drawing.
Each parts welds together its internal part of back and coats rush-resisting material, so that increase the service life.
A problem that is perplexing the pot-type boiler producer for a long time is how to make the antirust coat on the internal part even as far as possible, to guarantee reliability and service life.
Proposed all schemes in order to overcome this problem people, these schemes mostly relate to spraying coating process and use special material.Comprise zinc coating low-alloy steel in the employed material; Glaze low-alloy steel, this glaze is made of heat setting epoxy novolac or prepolymerization resinoid mixture; Or be coated with the glaze steel, form porcelain facing with meticulous spraying, curing system; Inner surface does not have the copper coin (popular especially in the Great Britain and America various countries) of coating; Substitute the stainless steel of low-alloy steel; On inner surface, be coated with (the PA 12-Polyamide RIISAN) of thermoplastic polyamide at last in addition.
The low-alloy steel water heater uses magnesium base exchangeable part, replaces the steel of water heater in corrosion process.
The use of above-mentioned steel material and coating only solves subproblem, still can corrode before the water heater end-of-life, thereby bring problem for the reliability of water heater.
In addition, this class problem and corrosion phenomenon are unfavorable for producer's image, are unfavorable for the sale of water heater.
Major defect relates to the used steel of water heater, and it is not inconsistent with the changeability of each employed process conditions of stage of specification requirement, protective finish and manufacturing process sometimes.
Usually, for example the electric heater case made from low-alloy carbon steel comprises: the high pressure flange group of a resistive element inside, and its ability is relevant with use with the capacity of this water heater; Water inlet pipe and outlet pipe; The outer cover that constitutes by the polypropylene shell that is filled with calcium carbonate, its major function is (common filling a semi-rigid urethane foam between casing and the shell attractive in appearance, this foam is as adiabatic, and to a certain extent as the inner support of polypropylene (PP) shell, the PP shell in use is not subjected to stress); Except resistive element, the high pressure flange also support a constant temperature system and mainly by magnesium make, (this boiler preferably scribbles the heat hardening glaze of 15-40 micron as the antirust sacrifice spare of boiler internal, in some cases, in the long-life water heater, the inner surface of boiler glaze porcelainization).
As mentioned above, more and more pay attention to solving the q﹠r problem in recent years.
Therefore people manage to make water heater with thermoplastic material.
Except the present invention, these methods are failed commercialization so far.
Particularly, these methods fail to solve the water heater problem of withstand voltage.
Aspect the chance of the utilization once more that plastics are provided, European patent EP 0 674 139 demonstrates certain progress, because it discloses a kind of like this water heater, wherein boiler body, heat insulation layer and shell all adopt same homogenous material to make.Therefore, can recycle water heater.But, this structure exists following open defect, promptly because each parts adopts unified homogenous material to make, must in the selection of material, adopt compromise proposal, promptly do not allow for each parts and select optimum material, to satisfy its different specific functions and needs, this will inevitably weaken the performance and the life-span of water heater.
On the contrary, the present invention can satisfy above-mentioned specific (special) requirements when overcoming the problems referred to above.
The present invention is based on following research work:
Thereby-use and the compound polymeric material of being improved of other polymer, to improve the hear resistance of water heater under condition of work, prevent corrosion with protective layer.The selection factor of material comprises outward appearance novelty, modern design and more matches with common sanitary equipment;
-use up-to-date mould pressing method, comprise the multilayer mold pressing;
-can be rapidly by using, the homogeneous of economic recovery or versatile material mutually, whole water heater recyclable (except heating and thermal control parts) comprises that not only water heats therein and storage, capacity are the container of 5-100 liter, also comprises the heat insulation layer and the shell of necessity.
The applicant's research project is paid attention to the material that uses especially, with thermoplastic material, particularly recyclable thermoplastic material, to obtain optimum.
As everyone knows, in recent decades, steel, pottery and cement/fiber are substituted by plastics day by day.
This development has overcome a series of problems, comprises corrosion (comprising external corrosion), connection and sealing, weight (plastics are lighter than steel), manufacturing and molding costs, says nothing of the cost of material itself.
For example, (forming with the ethene low-pressure polymerization) high density polyethylene (HDPE) helps to overcome the problem that is flowed and caused by high-pressure fluid, and poly thermal weldability accelerated conduit pipeline laying work, need not expensive maintenance.
Summary of the invention
Basic research work of the present invention relates to seeks basic mechanical property, thereby obtains high-quality and certain service life under average pressure condition (being the city siphon pressure) and the maximum temperature condition that reached in the heating process of the normal water storage/emptying of Domestic water tank.
Another object of the present invention is to satisfy the hygienic requirements of thermoplastic material and alloy component and annex, so the present invention meets in the world to the toxicity of organic and inorganic matter and the hygienic requirements of contaminative.
In addition, seek available injection molding, blowing mould or thermo shaping method are transformed into finished product from raw material plasticity.These characteristics directly relevant with the shape of thermoplastic articles are most important to process, but also are related to thereafter indeformable property (crystallization relevant with the cooling) problem relevant with solder technology with each parts of water heater.
Another free-revving engine of the present invention is, parts should meet existing rules and all recyclable, and further can meet following rules (following rules can be more and more tighter).
Another object of the present invention is to have high reliability-market to have required shelf-life more than 5 years or 5 years very much in very long service time.Above-mentioned purpose institute distinct issues are brought real obstacle to the water heater that manufacturing meets all these requirements.
People replace metal with thermoplastic material by every possible means.
Particularly, a part makes great efforts not to be to use the external skin of mechanism and heat insulating function, and it can only be used for the little water tank of low pressure in whole manufacturing field.
Therefore (Italy, Germany, the Spain) capacity of can having seen is that water heater-its function of rising of 5-12 is obviously limited on the market.
Not good film-forming resin as antirust internally coated effect based on the twelve carbon atom polyamide (PA) yet, no matter its reason is that the beneath moisture of film coating causes corrosion after a period of time owing to the water imbibition of polyamide or owing to pore is arranged.
In order to solve all the problems referred to above, the invention provides a kind of new water heater, its boiler can have various capacity (for example 5-100 liter), can use the polymer plastic of shape to make with having, wherein, according to the characteristic of thermoplastic material by selection and shape and structural design to thermoplastic material, make boiler under 8 crust and 95 °, be enough to bear repeatedly P/T cycle, and its anti-aging life-span is brought up at least 5 years.
Therefore the present invention relates to a kind of water heater made of plastic, particularly a kind of withstand voltage water heater tank, it comprises boiler body, heat insulation layer and shell, this boiler body and heat insulation layer are made with thermo-plastic polymeric material or its mixture, wherein, the thermo-plastic polymeric material or its mixture that are used for boiler body and heat insulation layer differ from one another, and from compatible with each other or select material compatible with each other or the mixture by compatilizer, so that recycled in its entirety.
Described shell also available material compatible with boiler body in less capacity tank made, and available traditional material is made in than large water tank.
According to the present invention, the polymerization of the most handy polyolefin of boiler body, styrene-based and/or butadiene and/or acrylate and copolymeric material, polyamide, polyphenylethyl, poly-ethyl sulfone (polyethylsulfone) and polysulfone resin or its key compound or its polyblend are made.
According to the present invention, boiler body is made in the material can add strengthening agent or filler, and its percentage is 10-40%, is preferably 20-30%, to be used to improve mechanical performance and dimensional stability.
Particularly, strengthening agent can use glass fibre or glass marble, and filler can use talcum powder or calcium carbonate or mica.Reinforcement material obviously can use with filler.
Can add the other materials that is called coupling agent and improve the viscosity of strengthening agent and filler and polymer or mixture.
In addition,, can add various compatilizers or its mixture, to improve cohesion as using the key compound or the mixture of polymer.Above-mentioned various additive also can be used for heat-insulating material and shell.
In addition, preferably use nucleator for crystalline material.
Also can add antistatic additive, anti-UV agent, fire proofing material, colouring agent and lubricant.
At last, can add the stabilizing agent of various character and composition, polymer property is not changed because of long-term the use.
Boiler body of the present invention can be made by methods such as compacting, injection moulding, blowings.
In an embodiment of the present invention, boiler body can for example be formed with hot weld, pressure knot or bonding connection by two or more parts.
According to the present invention, shell can separate manufacturing with heat insulation layer, also may be made in the crust of heat insulation layer.
Description of drawings
Only illustrate the present invention below in conjunction with accompanying drawing, in the accompanying drawing:
Fig. 1 is the profile of existing water heater;
Fig. 2 is the profile of water heater one embodiment of the present invention.
Existing water heater shown in Figure 1 comprises the metal pan body of heater 2 of adorning resistance 3 and sacrificial anode 4 in one.
The specific embodiment
The outside of boiler body 2 is a heat insulation layer 5, covers shell 6 made of plastic on the heat insulation layer 5.
Obviously water heater 1 has all above-mentioned shortcomings.
Fig. 2 water heater 11 comprise a usefulness heat of polymerization moulding material make, by for example hot weld boiler body 12 together of two and half.
Be arranged in boiler body 12 outsides with the heat insulation layer made from boiler body 12 material compatible materials 13 when scrapping (be convenient to water heater reclaim).
Shell 16 also uses the material compatible with boiler body 12 to make.
Resistance 14 and self-operated thermostatic controller 15 are positioned at boiler body 12 inside.
As mentioned above, in being used as the thermoplastic material of parent, can add various fillers and strengthening agent, i.e. the additive of crystallization control process, the additive relevant (be included in the manufacturing process with internal stress related phenomena) and oxidation stabilizers with dimensional stability, thermal phenomenon and mechanical phenomenon.All these additives all can prolong the service life of fertile material greatly.
Also can add the correction agent, so that change viscosity and usually change rheological characteristic, so that compressed together and obtain regular shape and width each several part during fabrication.
Not only be suitable for thermoplastic material but also be suitable for elastomer and one of the most common technique of heat setting material is that injection molding is made as boiler body 12 usefulness, then behind one or two part of making boiler body 12 with injection molding with experimental technique welding that the present invention developed together.
Made by the also available drawing method that is called blowing mould of one or more layers boiler body that constitutes 12, its advantage is that because the centronucleus of blow head is removable and the distinctive appearance of mould, the width of each wall of boiler body can be more regular.This is a kind of advanced technology now, has simplified the making of the boiler with complex appearance.
The current polyurethane (polyeurethane) that mixes with two kinds of prepolymerization compositions (isocyanates and polyalcohol) of handling through halogenation (FCKW11,12,113-115) chlorofluoro-alkane usually is owing to low-density (0.02-0.08 gram/cubic centimetre) has good thermal insulation.
But these goods are because greenhouse effects are certain to progressively inactive under new legislation.Just changing into the manufacturing of the vehicular PUR foam of carbon dioxide and to use non-destructive not have chlorine H-FKWs.
Other substitute technologies of developing will cause eliminating FCKW, and these technology are based on partly substituting foamed plastics with the vacuum part.This technology is difficult to be applied to water heater.In the boiler heat insulation layer, even seldom use chlorine, for helping reclaiming when the water heater end-of-life, new technology and new material have substituted the goods based on PUR, and make great efforts to avoid making callable material to mix with other different materials.
In the present invention, the housing compacting of being made by chemical blowing, environmental sound, thermoplastic material that density is identical with PUR of heat insulation layer 13 usefulness of water heater forms.
Heat insulation layer uses polyolefin or poly styrene polymer (with compatible with coating (if any the words of coating) with the boiler body material).
As for this coating, using hot pressing to form this device that the chemical blowing polyolefin obtains especially according to the present invention can be without shell, and form with the acrylic resin injection molding that is filled with calcium carbonate, this is a kind of and heat forming technology thermoplastic sheet, is the frothing heat-insulating layer manufacture craft in a kind of modern times.
Like this, the coating on the boiler body is made with foamed material, " crust " of one deck with foam and the perfect bonding of a sheet material is arranged, its material homogeneous or compatible with the making material of boiler and heat insulation layer on its outer surface.
Only for for example, describe one of preferred embodiment of doing according to structure of the present invention below in detail, be used for making the spherical boiler of a low capacity water heater, its capacity is 10 liters, and internal diameter is 270mm.
Use has the propylene of good mechanical properties, the also careful crystallization control speed of polymerization is to avoid generating big spherolite under gaseous state, and obtaining width is the boiler of 15-25mm, and its creep factor can be guaranteed to resist to such an extent that live siphon pressure, can use under operating temperature 5 years.
This boiler can be connected together with the rotation thermocompression bonding with two and half ones of injection molding, and also available blowing mould is made whole.
Claims (16)
1, a kind of water heater made of plastic (11), particularly a kind of withstand voltage water heater tank, comprise boiler body (12), heat insulation layer (13) and shell (16), this boiler body (12) and heat insulation layer (13) are made with thermo-plastic polymeric material or thermo-plastic polymeric material's mixture, it is characterized in that, be used for the boiler body (12) and the thermo-plastic polymeric material of heat insulation layer (13) or thermo-plastic polymeric material's mixture and differ from one another, and from compatible with each other or select material compatible with each other or the mixture by compatilizer.
2, by the described water heater of claim 1 (11), it is characterized in that, described shell (16) is also made with thermo-plastic polymeric material or thermo-plastic polymeric material's mixture, this material or mixture are different with the material or the mixture that are used for boiler body (12) or heat insulation layer (13), its with water heater (11) in other material of using or mixture perhaps pass through compatilizer mutually and compatible.
3, by claim 1 or 2 described water heaters (11), it is characterized in that described boiler body (12) is made with the polymerization of polyolefin, styrene-based and/or butadiene and/or acrylate and copolymeric material, polyamide, polyphenylethyl, poly-ethyl sulfone and polysulfone resin or its key compound or its polyblend.
By claim 1 or 2 described water heaters (11), it is characterized in that 4, add strengthening agent or filler in the making material of boiler body (12), its percentage is 10-40%, is preferably 20-30%.
By the described water heater of claim 4 (11), it is characterized in that 5, strengthening agent uses glass fibre or glass marble.
By the described water heater of claim 4 (11), it is characterized in that 6, filler uses talcum powder, calcium carbonate or mica.
7, by the described water heater of claim 4 (11), it is characterized in that, in described material, add coupling agent or its mixture, to improve the viscosity of strengthening agent and filler.
8, by claim 1 or 2 described water heaters (11), it is characterized in that, under the situation of using mixture of polymers, add various compatilizers or its mixture, be beneficial to each polymer and mix mutually.
9. by claim 1 or 2 described water heaters (11), it is characterized in that, under the situation that heat insulation layer (13) and/or shell (16) are made by mixture of polymers, also in these parts, use compatilizer or its mixture.
10, by claim 1 or 2 described water heaters (11), it is characterized in that,, add nucleator for making thermoplastic material crystallization best.
11, by claim 1 or 2 described water heaters (11), it is characterized in that, add antistatic additive, anti-UV agent, fire proofing material, colouring agent and lubricant.
12, by claim 1 or 2 described water heaters (11), it is characterized in that, add the stabilizing agent of various character and composition, polymer property is not changed because of long-term the use.
13, by claim 1 or 2 described water heaters (11), it is characterized in that boiler body (12) forms by injection moulding or blowing mode.
By claim 1 or 2 described water heaters (11), it is characterized in that 14, described boiler body (12) is formed with thermal weld, pressure knot or bonding connection by two and half ones.
15, by claim 1 or 2 described water heaters (11), it is characterized in that described shell (16) separates manufacturing with heat insulation layer (13).
16., it is characterized in that shell (16) is made for a crust of heat insulation layer (13) by claim 1 or 2 described water heaters (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITRM96A000532 | 1996-07-26 | ||
| IT96RM000532A IT1284232B1 (en) | 1996-07-26 | 1996-07-26 | WATER HEATER APPLIANCE IN PLASTIC MATERIAL AND IN PARTICULAR WATER HEATER WITH STORAGE AND PRESSURE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1229465A CN1229465A (en) | 1999-09-22 |
| CN1112549C true CN1112549C (en) | 2003-06-25 |
Family
ID=11404363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97197691A Expired - Fee Related CN1112549C (en) | 1996-07-26 | 1997-07-24 | Water heater apparatus made of plastic, in particular pressurized water heater tank |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0914580B1 (en) |
| CN (1) | CN1112549C (en) |
| AU (1) | AU3863197A (en) |
| DE (1) | DE19781958T1 (en) |
| ES (1) | ES2169644B2 (en) |
| IT (1) | IT1284232B1 (en) |
| WO (1) | WO1998004873A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1297428B1 (en) * | 1997-12-29 | 1999-12-17 | Merloni Termosanitari Spa | PRESSURE RESISTANT PLASTIC WATER HEATER |
| IT1310186B1 (en) * | 1999-03-09 | 2002-02-11 | Merloni Termosanitari Spa | ELECTRIC OR GAS WATER HEATER WITH A COVERING ELEMENT PARTIALLY WRAPPING AND REMOVABLE. |
| DE202010001010U1 (en) | 2010-01-16 | 2011-05-26 | CONSOLAR Solare Energiesysteme GmbH, 60489 | Pressure-resistant storage |
| WO2015079279A1 (en) * | 2013-11-29 | 2015-06-04 | KIM, No, Eul | Plastic hot water boiler |
| EP3687960B1 (en) * | 2017-09-28 | 2024-03-20 | Carboclave Corp. | Displaced air carbonation (dac) process and system |
| WO2022229477A1 (en) * | 2021-04-28 | 2022-11-03 | Inerox Industries Sl | Pressurised hot water accumulator tank made of plastic material and electric heater |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2548954B1 (en) * | 1983-07-12 | 1986-03-21 | Nusbaumer Charles | PROCESS FOR MAKING A SEALED ENCLOSURE |
| EP0134363A3 (en) * | 1983-09-13 | 1985-11-13 | Everlast Hot Water Systems (Proprietary) Limited | Container for use as a pressure vessel in a hot water system |
| FR2620803B1 (en) * | 1987-09-21 | 1990-01-12 | Chaffoteaux Et Maury | IMPROVEMENTS ON HOT WATER BALLOONS |
| DE4410215A1 (en) * | 1994-03-24 | 1995-09-28 | Bosch Gmbh Robert | Space water storage, in particular small electrical storage |
-
1996
- 1996-07-26 IT IT96RM000532A patent/IT1284232B1/en active IP Right Grant
-
1997
- 1997-07-24 ES ES009950003A patent/ES2169644B2/en not_active Expired - Fee Related
- 1997-07-24 DE DE19781958T patent/DE19781958T1/en not_active Withdrawn
- 1997-07-24 AU AU38631/97A patent/AU3863197A/en not_active Abandoned
- 1997-07-24 CN CN97197691A patent/CN1112549C/en not_active Expired - Fee Related
- 1997-07-24 WO PCT/IT1997/000186 patent/WO1998004873A1/en not_active IP Right Cessation
- 1997-07-24 EP EP97935750A patent/EP0914580B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE19781958T1 (en) | 1999-08-12 |
| ES2169644A1 (en) | 2002-07-01 |
| ITRM960532A1 (en) | 1998-01-26 |
| IT1284232B1 (en) | 1998-05-14 |
| ITRM960532A0 (en) | 1996-07-26 |
| CN1229465A (en) | 1999-09-22 |
| AU3863197A (en) | 1998-02-20 |
| EP0914580B1 (en) | 2002-04-10 |
| WO1998004873A1 (en) | 1998-02-05 |
| ES2169644B2 (en) | 2003-12-01 |
| EP0914580A1 (en) | 1999-05-12 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20030625 |