CH655168A5 - Grate device which makes it possible to increase the thermal efficiency of the combustion in a hearth - Google Patents

Grate device which makes it possible to increase the thermal efficiency of the combustion in a hearth Download PDF

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Publication number
CH655168A5
CH655168A5 CH76/83A CH7683A CH655168A5 CH 655168 A5 CH655168 A5 CH 655168A5 CH 76/83 A CH76/83 A CH 76/83A CH 7683 A CH7683 A CH 7683A CH 655168 A5 CH655168 A5 CH 655168A5
Authority
CH
Switzerland
Prior art keywords
pipe
hearth
grate
coil
air
Prior art date
Application number
CH76/83A
Other languages
Italian (it)
Inventor
Rino Pompeo
Original Assignee
Rino Pompeo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rino Pompeo filed Critical Rino Pompeo
Priority to CH76/83A priority Critical patent/CH655168A5/en
Priority to IT19010/84A priority patent/IT1172954B/en
Publication of CH655168A5 publication Critical patent/CH655168A5/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24BDOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00Stoves or ranges
    • F24B1/18Stoves with open fires, e.g. fireplaces
    • F24B1/185Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion
    • F24B1/188Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas  
    • F24B1/1885Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas   the heat exchange medium being air only
    • F24B1/1886Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas   the heat exchange medium being air only the heat exchanger comprising only tubular air ducts within the fire
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H3/00Grates with hollow bars
    • F23H3/02Grates with hollow bars internally cooled

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

The device can be used as a replacement for the grate of the hearth in a fireplace, in a wood or coal stove and in other heating installations. It comprises a grate-shaped tube, preferably bent into a serpentine shape (1, 1a, 1b, 1c, 1d, 1e) with the coils very close together in order to be capable of leaving an interspace (2) between coil and coil which is equal to that of existing grates. The rear part is bent upwards and is then turned over (1e) towards the interior of the hearth in order better to contain the fuel and to receive by irradiation part of the heat irradiated by the fuel itself. The air which arrives cold (arrow 5) runs through the tube, emerges heated (arrow 6) and goes to heat the environment. The interior of the serpentine has fins or means capable of increasing the surface area flowed over by the air to be heated. <IMAGE>

Description

655 168 655 168

Claims (5)

RIVENDICAZIONI 1. Dispositivo fungente da griglia permettente di aumentare il rendimento termico della combustione in un focolare, caratterizzato da ciò che esso comprende una parte fungente da griglia del focolare costituita da almeno una tubazione sagomata a griglia, percorsa internamente dall'aria da riscaldare, tubazione risvoltata verso l'alto (ld) in corrispondenza di almeno un fianco o del fondo della camera di combustione per ricevere anche il calore irraggiato lateralmente dal combustibile; l'interno di detta tubazione essendo provvisto di mezzi atti ad aumentare la superficie interna investita da detta aria da riscaldare.1. Device acting as a grate allowing to increase the thermal efficiency of combustion in a hearth, characterized in that it includes a part that acts as a grate of the hearth made up of at least one grate-shaped pipe, internally traversed by the air to be heated, turned-up pipe upwards (ld) in correspondence with at least one side or the bottom of the combustion chamber to also receive the heat radiated laterally by the fuel; the inside of said pipe being provided with means suitable for increasing the internal surface covered by said air to be heated. 2. Dispositivo secondo la rivendicazione 1, caratterizzato da ciò che detta tubazione è di sezione circolare, quadrangolare o poligonale ed è piegata a serpentina con le spire accostate in modo da lasciare tra spira e spira il normale interspazio delle griglie per focolai; l'interno di detta tubazione a serpentina essendo provvisto di alettature realizzate in materiale buon conduttore del calore, come rame o alluminio.2. Device according to claim 1, characterized in that said pipe has a circular, quadrangular or polygonal section and is bent in a serpentine manner with the coils juxtaposed so as to leave between coil and coil the normal gap of grates for hearths; the inside of said serpentine pipe being provided with fins made of a material which conducts heat well, such as copper or aluminium. 3. Dispositivo secondo le rivendicazioni I e 2, caratterizzato da ciò che la serpentina è risvoltata di 90° verso l'alto (ld) in corrispondenza della parte posteriore del focolare ed è ulteriormente ripiegata (le) verso l'interno del focolare stesso alla sua sommità.3. Device according to claims 1 and 2, characterized in that the coil is turned upwards by 90° (ld) in correspondence with the rear part of the hearth and is further folded (le) towards the inside of the hearth itself at the its top. 4. Utilizzazione del dispositivo conformato a guisa di serpentina secondo una delle rivendicazioni da 2 a 3, in sostituzione della griglia nei caminetti, nelle stufe a legna e/o carbone.4. Use of the device shaped like a coil according to one of claims 2 to 3, in replacement of the grate in fireplaces, in wood and/or coal stoves. 5. Utilizzazione del dispositivo conformato a guisa di serpentina secondo la rivendicazione 2 o 3, in sostituzione della griglia nella cupola interna di un forno per pizza.5. Use of the device shaped like a coil according to claim 2 or 3, in replacement of the grill in the inner dome of a pizza oven. La presente invenzione ha per oggetto un dispositivo fungente da griglia permettente di aumentare il rendimento termico della combustione in un focolare, in particolare nei caminetti, nelle stufe a legna di carbone, nella cupola interna di forni per pizza e in altri impianti di riscaldamento.The present invention relates to a device which acts as a grate allowing to increase the thermal efficiency of combustion in a hearth, in particular in fireplaces, in wood-burning coal stoves, in the internal dome of pizza ovens and in other heating systems. È noto che nelle stufe a legna e a carbone e in altri impianti di riscaldamento facenti uso di bruciatori, è previsto di disporre attorno alla camera di combustione delle tubazioni percorse internamente dall'aria fredda che si riscalda a spese del calore irraggiato dal combustibile, aria che viene portata poi a riscaldare i vari ambienti.It is known that in wood-burning and coal-burning stoves and in other heating systems which make use of burners, pipes are arranged around the combustion chamber which are traversed internally by the cold air which heats up at the expense of the heat radiated by the fuel, air which it is then brought to heat the various rooms. Il dispositivo secondo la presente invenzione è caratterizzato da ciò che esso comprende una parte fungente da griglia del focolare costituita da almeno una tubazione sagomata a griglia, percorsa internamente dall'aria da riscaldare, tubazione risvoltata verso l'alto in corrispondenza di almeno un fianco o del fondo della camera di combustione per ricevere anche il calore irraggiato lateralmente dal combustibile; l'interno di detta tubazione essendo provvisto di mezzi atti ad aumentare la superficie interna investita da detta aria da riscaldare.The device according to the present invention is characterized in that it comprises a part which acts as a grate of the hearth consisting of at least one grate-shaped pipe, internally flown by the air to be heated, pipe turned upwards in correspondence with at least one side or of the bottom of the combustion chamber to also receive the heat radiated laterally by the fuel; the inside of said pipe being provided with means suitable for increasing the internal surface covered by said air to be heated. Secondo una preferita forma di realizzazione, detta tubazione è di sezione circolare, quadrangolare o poligonale ed è piegata a serpentina con le spire accostate in modo da lasciare tra spira e spira il normale interspazio delle griglie per focolai.According to a preferred embodiment, said pipe has a circular, quadrangular or polygonal section and is bent in a serpentine manner with the coils juxtaposed so as to leave the normal gap between the coils for hearth grates. L'interno di detta tubazione a serpentina è provvisto di aletta-ture realizzate in materiale buon conduttore del calore, come rame o alluminio.The inside of said serpentine pipe is provided with fins made of a material which conducts heat well, such as copper or aluminium. Detta serpentina è risvoltata di 90° verso l'alto in corrispondenza della parete posteriore del focolare ed è ulteriormente ripiegata verso l'interno del focolare stesso alla sua sommità.Said coil is turned upwards by 90° at the rear wall of the hearth and is further folded towards the inside of the hearth itself at its top. A maggior chiarimento il disegno allegato rappresenta due varianti della suddetta preferita forma di realizzazione del dispositivo in oggetto, forma non limitativa nè vincolativa.For further clarification, the enclosed drawing represents two variants of the aforementioned preferred embodiment of the device in question, a non-limiting and non-binding embodiment. La fig. 1 la rappresenta in vista in pianta dall'alto.fig. 1 shows it in plan view from above. La fig. 2 la rappresenta vista lateralmente.fig. 2 shows it seen from the side. La fig. 3 in sezione trasversale secondo una prima forma di realizzazione.fig. 3 in cross section according to a first embodiment. La fig. 4 in sezione trasversale secondo una ulteriore forma di realizzazione.fig. 4 in cross section according to a further embodiment. Il dispositivo secondo la suddetta forma di realizzazione del dispositivo è costituito da una griglia formata da una tubazione 1 successivamente ripiegata a serpentina (come illustrato in fig. 1) con le spire 1, la, lb, le, ld, le ecc. accostate in modo da lasciare tra spira e spira il normale interspazio 2 delle griglie per focolai.The device according to the aforementioned embodiment of the device consists of a grid formed by a pipe 1 subsequently folded into a serpentine (as shown in fig. 1) with the coils 1, la, lb, le, ld, le etc. juxtaposed so as to leave the normal gap 2 of the grates for hearths between coils. La sezione delle tubazioni 1, la, lb, le, ecc. può essere circolare come illustrato in fig. 3, rettangolare come illustrato in fig. 4 o qualsiasi.Pipe cross section 1, la, lb, le, etc. it can be circular as illustrated in fig. 3, rectangular as illustrated in FIG. 4 or any. All'interno della tubazione a serpentina suddetta sono disposte le alettature 3 illustrate nelle figg. 3 e 4 in modo da aumentare la superficie lambita dall'aria, favorendo la cessione del calore all'aria stessa.The fins 3 illustrated in figs. are arranged inside the coil-like pipe. 3 and 4 in order to increase the surface touched by the air, favoring the transfer of heat to the air itself. Le alettature 3 possono essere in rame, alluminio o qualsiasi altro materiale buon conduttore del calore, dello stesso o di materiale diverso da quello della tubazione esterna.The fins 3 can be made of copper, aluminum or any other material which conducts heat well, of the same or different material from that of the external pipe. Non si esclude che all'interno delle tubazioni 1, la, lb, ecc. invece delle alettature possano essere impiegati altri mezzi atti ad assumere la superficie interna, ad es. un granulato metallico o non metallico, dei truccioli metallici o qualsiasi altro mezzo.It is not excluded that inside the pipes 1, la, lb, etc. instead of the fins, other means suitable for taking on the internal surface can be used, e.g. a metallic or non-metallic granulate, metallic shavings or any other means. Come illustrato nelle figg. 1 e 2, la parte superiore ld della serpentina è risvoltata di 90° rispetto alla base le (fig. 2) ed è ulteriormente ripiegata in corrispondenza della parte superiore le verso l'interno del focolare per meglio contenere il combustibile.As illustrated in FIGS. 1 and 2, the upper part ld of the coil is turned up by 90° with respect to the base le (fig. 2) and is further folded in correspondence with the upper part le towards the inside of the firebox to better contain the fuel. Il funzionamento è evidente: la gran parte del calore sviluppato dal combustibile viene trasmesso per conduzione alla parte orizzontale della griglia e per irraggiamento alle sue parti dirette verso l'alto ld e le, in modo che l'aria fredda entrante secondo la freccia 5 ed uscente riscaldata secondo la freccia 6 possa essere portata, tramite un ventilatore non illustrato, nell'ambiente da riscaldare, con eleveto rendimento.The way it works is obvious: most of the heat developed by the fuel is transmitted by conduction to the horizontal part of the grate and by radiation to its parts directed upwards ld and le, so that the cold air entering according to the arrow 5 and The heated outlet according to the arrow 6 can be carried, by means of a fan not shown, into the environment to be heated, with high efficiency. Il dispositivo in oggetto può essere applicato a qualsiasi impianto di riscaldamento che ne permetta l'applicazione, come caminetti, stufe a legna e carbone, nella cupola interna dei forni per pizza, e in tutti gli impianti di riscaldamento in cui il combustibile è sostenuto da una griglia.The device in question can be applied to any heating system that allows its application, such as fireplaces, wood and coal stoves, in the internal dome of pizza ovens, and in all heating systems in which the fuel is supported by a grill. La forma delle varie parti che lo compongono potrà essere qualsiasi, compatibilmente con quanto rivendicato, senza uscire dall'ambito di protezione del brevetto.The shape of the various parts that compose it may be any, compatibly with what is claimed, without departing from the scope of protection of the patent. 22 ss 1010 1515 2020 2525 3030 3535 4040 4545 5555 Vv 1 foglio disegni1 drawing sheet
CH76/83A 1983-01-07 1983-01-07 Grate device which makes it possible to increase the thermal efficiency of the combustion in a hearth CH655168A5 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH76/83A CH655168A5 (en) 1983-01-07 1983-01-07 Grate device which makes it possible to increase the thermal efficiency of the combustion in a hearth
IT19010/84A IT1172954B (en) 1983-01-07 1984-01-03 DEVICE PERMITTING TO INCREASE THE THERMAL PERFORMANCE OF COMBUSTION IN A FIREBOX

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH76/83A CH655168A5 (en) 1983-01-07 1983-01-07 Grate device which makes it possible to increase the thermal efficiency of the combustion in a hearth

Publications (1)

Publication Number Publication Date
CH655168A5 true CH655168A5 (en) 1986-03-27

Family

ID=4178729

Family Applications (1)

Application Number Title Priority Date Filing Date
CH76/83A CH655168A5 (en) 1983-01-07 1983-01-07 Grate device which makes it possible to increase the thermal efficiency of the combustion in a hearth

Country Status (2)

Country Link
CH (1) CH655168A5 (en)
IT (1) IT1172954B (en)

Also Published As

Publication number Publication date
IT8419010A0 (en) 1984-01-03
IT1172954B (en) 1987-06-18

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