ITVE20080012U1 - HEAT EXCHANGER FOR FLUIDS. - Google Patents
HEAT EXCHANGER FOR FLUIDS. Download PDFInfo
- Publication number
- ITVE20080012U1 ITVE20080012U1 IT000012U ITVE20080012U ITVE20080012U1 IT VE20080012 U1 ITVE20080012 U1 IT VE20080012U1 IT 000012 U IT000012 U IT 000012U IT VE20080012 U ITVE20080012 U IT VE20080012U IT VE20080012 U1 ITVE20080012 U1 IT VE20080012U1
- Authority
- IT
- Italy
- Prior art keywords
- tube
- exchanger according
- heat exchanger
- resistance
- fluids
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims description 12
- 238000005219 brazing Methods 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- NFLLKCVHYJRNRH-UHFFFAOYSA-N 8-chloro-1,3-dimethyl-7H-purine-2,6-dione 2-(diphenylmethyl)oxy-N,N-dimethylethanamine Chemical compound O=C1N(C)C(=O)N(C)C2=C1NC(Cl)=N2.C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 NFLLKCVHYJRNRH-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/16—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
- F24H1/162—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled using electrical energy supply
-
- 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2028—Continuous-flow heaters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
-
- 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
- F28D7/0008—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 for one medium being in heat conductive contact with the conduits for the other medium
- F28D7/0016—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 for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being bent
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
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-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Fuses (AREA)
Description
La presente innovazione concerne uno scambiatore di calore per fluidi. The present innovation relates to a heat exchanger for fluids.
Sono noti dispositivi di riscaldamento utilizzati in apparecchi elettrodomestici (lavatrici, lavastoviglie, caffettiere, ecc..) che nel ciclo di funzionamento prevedono l'impiego di acqua riscaldata che viene fatta circolare attraverso un idoneo circuito di utilizzazione. Heating devices are known used in household appliances (washing machines, dishwashers, coffee makers, etc.) which in the operating cycle provide for the use of heated water which is circulated through a suitable utilization circuit.
Tali tecnologie hanno inoltre trovato applicazione in altri settori industriali e commerciali quali il settore idrosanitario, di ristorazione collettiva, generazione di vapore, ecc... These technologies have also found application in other industrial and commercial sectors such as the sanitary sector, collective catering, steam generation, etc ...
Un primo noto tipo di scambiatore ? costituito da un corpo realizzato in fusione di alluminio che incorpora una resistenza ed un tubo spiralato all'interno del quale scorre il fluido. A first known type of exchanger? consisting of a body made of cast aluminum that incorporates a resistance and a spiral tube inside which the fluid flows.
Tale scambiatore presenta tuttavia l'inconveniente di un costo elevato e della impossibilit? di essere modificato per sopravvenute esigenze. However, this exchanger has the drawback of a high cost and the impossibility of using it. to be modified for unexpected needs.
Un altro scambiatore ? costituito da un doppio profilo ad U in alluminio in cui un tubo alloggia la resistenza e l'altro costituisce il collettore del fluido. Another exchanger? consisting of a double aluminum U profile in which one tube houses the resistance and the other constitutes the fluid collector.
Tale dispositivo presenta l'inconveniente di una elevata dispersione e richiede specifiche attrezzature per la sua realizzazione. This device has the drawback of a high dispersion and requires specific equipment for its realization.
Un terzo tipo di scambiatore ? costituito da un manicotto in alluminio rivestito internamente di teflon ed alloggiante all'interno della parete del tubo una resistenza corazzata. A third type of exchanger? consisting of an aluminum sleeve internally coated with Teflon and housing an armored resistance inside the pipe wall.
Tale scambiatore presenta l'inconveniente di un elevato costo dovuto principalmente alla fase di teflonatura e pressofusione. This exchanger has the drawback of a high cost mainly due to the teflon-coating and die-casting phase.
Un quarto dispositivo ? costituito da una resistenza avvolta a spirale su un tubo in acciaio e saldato ad esso per brasatura. A fourth device? consisting of a resistor wound in a spiral on a steel tube and welded to it by brazing.
Tale dispositivo presenta l'inconveniente di una elevata dispersione e di un costo elevato degli impianti specifici per effettuare la saldo-brasatura. This device has the drawback of a high dispersion and a high cost of the specific plants for carrying out the brazing.
Un altro dispositivo ? costituito da due piastre in alluminio che formano il circuito per il fluido e che incorporano la resistenza fissata per pressione. Another device? consisting of two aluminum plates which form the circuit for the fluid and which incorporate the resistance fixed by pressure.
Tale dispositivo presenta l'inconveniente di un elevato costo degli stampi ed un elevato costo di montaggio delle varie parti. This device has the drawback of a high cost of the molds and a high cost of assembling the various parts.
Un altro dispositivo ? costituito da un tubo in acciaio inox di passaggio del fluido e all'interno del quale ? saldata una resistenza. Another device? consisting of a stainless steel tube for the passage of the fluid and inside which? welded a resistor.
Tale dispositivo presenta l'inconveniente della formazione di calcare in quanto il fluido ? direttamente a contatto con la resistenza ed ? di elevato costo. This device has the drawback of limescale formation as the fluid? directly in contact with the resistance and? of high cost.
Inoltre i dispositivi sopra menzionati richiedono spesso tecnologie produttive difficilmente presenti nello stesso sito produttivo o che non possono coesistere per condizioni ambientali incompatibili con conseguenti problematiche logistiche per il loro completamento. Furthermore, the aforementioned devices often require production technologies that are hardly present in the same production site or that cannot coexist due to incompatible environmental conditions with consequent logistical problems for their completion.
Scopo dell'innovazione ? di eliminare tali inconvenienti e di realizzare uno scambiatore di calore che consenta non solo il riscaldamento dei fluidi ma anche per certe applicazioni di portare il fluido nella fase di vapore. Purpose of the innovation? to eliminate these drawbacks and to provide a heat exchanger which allows not only the heating of the fluids but also for certain applications to bring the fluid into the vapor phase.
Altro scopo dell'innovazione ? di realizzare uno scambiatore di calore che presenta una buona efficienza termica ed una elevata modularit?. Another purpose of innovation? to realize a heat exchanger that has a good thermal efficiency and a high modularity.
Altro scopo dell?innovazione ? di consentire un controllo adeguato della temperatura/e, tramite eventuali termostati. Another purpose of innovation? to allow adequate control of the temperature (s), by means of any thermostats.
Altro scopo dell?innovazione ? di essere intrinsecamente ?sicuro? contro le sovratemperature essendo realizzato con materiali che resistono termicamente fino a 650?C senza deteriorarsi. Another purpose of innovation? to be inherently? safe? against overheating being made with materials that thermally resist up to 650? C without deteriorating.
Altro scopo dell'innovazione ? di realizzare uno scambiatore che richieda bassi investimenti specifici e quindi abbia un costo competitivo. Another purpose of innovation? to create an exchanger that requires low specific investments and therefore has a competitive cost.
Tale scopo ed altri che risulteranno dalla descrizione che segue sono raggiunti con uno scambiatore di calore caratterizzato dal fatto di essere costituito da una resistenza corazzata attorno alla quale ? avvolto un tubo di passaggio del fluido da scaldare. This object and others that will result from the following description are achieved with a heat exchanger characterized in that it consists of an armored resistance around which? wrapped in a tube for the passage of the fluid to be heated.
La presente innovazione viene qui di seguito ulteriormente chiarita con riferimento alle allegate tavole di disegni in cui: The present innovation is further clarified below with reference to the attached drawings tables in which:
la figura 1 mostra in vista prospettica uno scambiatore di calore secondo l'innovazione, Figure 1 is a perspective view of a heat exchanger according to the invention,
la figura 2 lo mostra in pianta e, Figure 2 shows it in plan and,
la figura 3 lo mostra in vista frontale. Figure 3 shows it in front view.
Come si vede dalle figure lo scambiatore di calore secondo l'innovazione comprende sostanzialmente una resistenza corazzata 2 conformata ad U realizzata in acciaio inox provvista alle estremit? di perline isolanti 4 dalle quali fuoriescono faston 6 di collegamento ai cavi della rete elettrica. As can be seen from the figures, the heat exchanger according to the invention substantially comprises a U-shaped armored resistance 2 made of stainless steel provided at the ends. of insulating beads 4 from which faston 6 protrude for connection to the electrical network cables.
Alla resistenza 2 ? avvolto a spirale un tubo 8 in materiale metallico, preferibilmente in acciaio inox, ma ? anche possibile impiegare leghe ad alto contenuto di nichel e cromo. To resistance 2? coiled a tube 8 in metal material, preferably in stainless steel, but? It is also possible to use alloys with a high nickel and chromium content.
In particolare il tubo 8 ? vincolato per brasatura con leghe (nichel) idonee a sopportare in modo affidabile la temperatura massima di esercizio della resistenza ed a trasmettere adeguatamente il calore generato dalla resistenza al tubo stesso. Il tubo stesso ? provvisto alle estremit? di raccordi 10 tipo gas, per la sua connessione al circuito idraulico. In particular the tube 8? bound by brazing with alloys (nickel) suitable to reliably withstand the maximum operating temperature of the resistor and to adequately transmit the heat generated by the resistor to the pipe itself. The tube itself? provided at the ends? of 10 gas type fittings, for its connection to the hydraulic circuit.
La resistenza 2 ed il tubo 8 sono saldati per brasatura a due staffe 12 a C con alette 14 provviste di fori 16 per il vincolo ad una struttura di supporto (non rappresentata nei disegni). Le medesime staffe 12 sono anche predisposte al montaggio di termostato/i di sicurezza e/o funzionali. The resistance 2 and the tube 8 are welded by brazing to two C-shaped brackets 12 with fins 14 provided with holes 16 for fastening to a support structure (not shown in the drawings). The same brackets 12 are also prearranged for the assembly of safety and / or functional thermostat / s.
Alla superficie esterna del tubo 8, in corrispondenza di una delle due staffe, ? applicato un tubicino 18 alloggiante internamente un fusibile termico (non rappresentato nei disegni) inserito nella rete elettrica di alimentazione della resistenza e che interrompe tale alimentazione al superamento di una prefissata temperatura. At the outer surface of the tube 8, in correspondence with one of the two brackets,? applied a small tube 18 internally housing a thermal fuse (not shown in the drawings) inserted in the electric power supply network of the resistance and which interrupts this power supply when a predetermined temperature is exceeded.
Questo sistema presenta una bassa inerzia termica e qualora si renda necessario aumentarla ? possibile applicare un profilo in acciaio (da saldare in parallelo o su un piano superiore a quello del tubo spiralato) con elevata massa termica. Tale variante ? considerata utile per vari utilizzi, tra i quali la generazione di vapore per fasi. Does this system have a low thermal inertia and should it be necessary to increase it? It is possible to apply a steel profile (to be welded in parallel or on a plane higher than that of the spiral tube) with a high thermal mass. Such a variant? considered useful for various uses, including the generation of steam in stages.
Da quanto detto risulta chiaramente che lo scambiatore di calore secondo l'innovazione presenta numerosi vantaggi ed in particolare: From what has been said it is clear that the heat exchanger according to the innovation has numerous advantages and in particular:
- consente di poter essere utilizzato in tutte le apparecchiature a contatto con liquidi e gas destinati ad alimenti o fluidi per il corpo umano, - allows it to be used in all equipment in contact with liquids and gases intended for food or fluids for the human body,
- presenta una elevata efficienza termica data la elevata superficie di scambio, - it has a high thermal efficiency due to the high exchange surface,
- presenta una molteplicit? di uso, - presents a multiplicity? of use,
- consente di essere realizzato in molteplici forme, lunghezze e capacit? termiche ed elettriche, - allows it to be made in multiple shapes, lengths and capacities? thermal and electrical,
- pu? essere dotato di termostato/i di sicurezza e funzionali, - can? be equipped with safety and functional thermostat / s,
- pu? essere dotato di isolamento termico esterno alla spirale per aumentare l?efficienza termica, - can? be equipped with thermal insulation outside the spiral to increase thermal efficiency,
- pu? essere considerato intrinsecamente sicuro contro le sovratemperature. - can? be considered intrinsically safe against overheating.
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000012U ITVE20080012U1 (en) | 2008-04-24 | 2008-04-24 | HEAT EXCHANGER FOR FLUIDS. |
| EP09158161A EP2112438A3 (en) | 2008-04-24 | 2009-04-17 | Heat exchanger for fluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000012U ITVE20080012U1 (en) | 2008-04-24 | 2008-04-24 | HEAT EXCHANGER FOR FLUIDS. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITVE20080012U1 true ITVE20080012U1 (en) | 2009-10-24 |
Family
ID=40297631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT000012U ITVE20080012U1 (en) | 2008-04-24 | 2008-04-24 | HEAT EXCHANGER FOR FLUIDS. |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2112438A3 (en) |
| IT (1) | ITVE20080012U1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943464A (en) * | 2010-06-03 | 2011-01-12 | 宁波市万泓电器科技有限公司 | Liquid heating unit and manufacturing process thereof |
| WO2015107510A1 (en) * | 2014-01-20 | 2015-07-23 | I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini | Heater for household appliances |
| CN104333924A (en) * | 2014-10-17 | 2015-02-04 | 芜湖市泰能电热器具有限公司 | High-performance heating aluminum tube |
| IT201700060931A1 (en) * | 2017-06-05 | 2018-12-05 | Lavazza Luigi Spa | FLUID HEATER AND CORRESPONDING MACHINE |
| WO2019002492A1 (en) * | 2017-06-30 | 2019-01-03 | Zoneox Medical Aps | An apparatus and a method of affecting a parameter of a fluid |
| CN213272576U (en) * | 2020-09-30 | 2021-05-25 | 张健鸿 | Electric heating vaporization mechanism and high-temperature steam generating device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2588360B1 (en) * | 1985-10-04 | 1989-03-24 | Bidaux Alain | MULTI-FUEL BATH PREHEATER |
| DE4240840C2 (en) * | 1992-12-04 | 1995-04-27 | Tuerk & Hillinger Gmbh | Electric instantaneous water heater |
| AU4786696A (en) * | 1995-02-03 | 1996-08-21 | Artform International Limited | Connectors |
| JPH1024102A (en) * | 1996-07-15 | 1998-01-27 | Meteku:Kk | Heater for heating dialysis liquid |
| FR2803976B1 (en) * | 2000-01-13 | 2002-05-17 | Seb Sa | HEATING ELEMENT WITH INTEGRATION OF A THERMAL SAFETY DEVICE |
| US6327429B1 (en) * | 2000-06-13 | 2001-12-04 | Electrical & Electronics Limited | Coffee maker heater |
| JP4743495B2 (en) * | 2005-07-08 | 2011-08-10 | 東京エレクトロン株式会社 | Fluid heating device |
| DE202007017796U1 (en) * | 2007-12-20 | 2008-04-17 | BSH Bosch und Siemens Hausgeräte GmbH | Safety device for a water heater |
-
2008
- 2008-04-24 IT IT000012U patent/ITVE20080012U1/en unknown
-
2009
- 2009-04-17 EP EP09158161A patent/EP2112438A3/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP2112438A3 (en) | 2012-06-13 |
| EP2112438A2 (en) | 2009-10-28 |
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