EP1134532A1 - Flue with heat exchanger for heating rooms - Google Patents
Flue with heat exchanger for heating rooms Download PDFInfo
- Publication number
- EP1134532A1 EP1134532A1 EP01106011A EP01106011A EP1134532A1 EP 1134532 A1 EP1134532 A1 EP 1134532A1 EP 01106011 A EP01106011 A EP 01106011A EP 01106011 A EP01106011 A EP 01106011A EP 1134532 A1 EP1134532 A1 EP 1134532A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flue
- heat
- air
- upper opening
- room
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
- F28D21/0005—Recuperative heat exchangers the heat being recuperated from exhaust gases for domestic or space-heating systems
- F28D21/0008—Air heaters
-
- 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
- F28D7/02—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 being helically coiled
- F28D7/026—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 being helically coiled the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration
Definitions
- the present invention concerns the sector of room heating and in particular it concerns a new flue equipped with heat exchanger for heating rooms.
- These stoves essentially comprise a furnace and are provided with a flue for the outflow of flue gases.
- the heat generated by the combustion process is partly radiated by the stove and partly transported by the flue gases, so that even the flue heats up and radiates a certain quantity of heat.
- the subject of the present patent is a new flue that uses the heat transported by the flue gases to heat the room better.
- the new flue comprises, in its main parts, two concentric tubes, one of which is internal and through, while the other is external and closed at the ends and is provided with two connection openings (unions).
- Each one of the two openings of the external tube is positioned on the lateral surface of said tube, near one of its ends.
- a fan, or another forced ventilation means is provided to draw the air from the zone around the stove and blow it into the lower opening.
- a helical foil is provided between the external and the internal tube to create a forced path for the blown air, between the two tubes and from one opening of the external tube to the other.
- the new flue constituted as described above replaces completely or partially the flue positioned directly on the stove; the upper outlet of the internal tube of the new flue is connected with the remaining part of the flue that conveys the flue gases towards the outside.
- the air blown in between the internal and the external tube follows the entire spiral-shaped path defined by the foil positioned between the two tubes and flows out through the upper opening.
- the air that has been blown in receives heat from the internal tube, so that it will heat the room when it flows out of the upper opening of the new flue.
- the new flue constructed as described above, makes it possible to recover part of the heat that otherwise would be dispersed towards the outside and heat the room in which the stove is positioned or even another room.
- the flue gases are not negatively affected by the temperature decrease, since the quantity of heat still transported by said gas does not prevent the stack effect.
- the air heated by means of the new flue can easily heat another room not directly exposed to the presence of the stove.
- the figure shows the new flue, in partial section, comprising an internal tube (1) into which the flue gases flow, an external tube (2) concentric with the internal tube (1), a helical foil (3) included between the external tube (2) and the internal tube (1).
- the ends of the external tube are closed, except for two openings (2.1, 2.2) - the lower opening (2.1) and the upper opening (2.2) provided on the lateral surface of the external tube (2) itself.
- the air if necessary blown by a fan, flows into the lower opening (2.1), follows the spiral-shaped path touching the internal tube (1) and heating up, then flows out of the upper opening (2.2) at increased temperature.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
- Chimneys And Flues (AREA)
- Building Environments (AREA)
Abstract
Flue for stoves or similar equipment, comprising two concentric tubes
(1,2), one of which (1) is internal and through, while the other (2) is
closed at the ends and provided with two openings (2.1,2.2) on its
lateral surface; a helical foil (3) is positioned between the two tubes
(1,2), creating a spiral-shaped forced path to be followed by the air
between the lower and the upper opening of the external tube (2). A fan
or another forced ventilation means may be provided to draw the air and
blow it in through the lower or upper opening (2.1,2.2).
This makes it possible to recover part of the heat, which otherwise would be dispersed towards the outside, in order to heat the room in which the stove is positioned or even another room.
This makes it possible to recover part of the heat, which otherwise would be dispersed towards the outside, in order to heat the room in which the stove is positioned or even another room.
Description
- The present invention concerns the sector of room heating and in particular it concerns a new flue equipped with heat exchanger for heating rooms.
- In many houses the heating of rooms is achieved by means of stoves, which are used exclusively for heating purposes or also for cooking food.
- These stoves essentially comprise a furnace and are provided with a flue for the outflow of flue gases.
- The heat generated by the combustion process is partly radiated by the stove and partly transported by the flue gases, so that even the flue heats up and radiates a certain quantity of heat.
- In case of very large rooms, several stoves are necessary to ensure uniform temperature in the various areas of the room.
- Almost all the heat transported by the flue gases is dispersed in the atmosphere together with the flue gases themselves.
- As a consequence of this, the heat actually used to heat the room is much less than the heat generated by the combustion process.
- The subject of the present patent is a new flue that uses the heat transported by the flue gases to heat the room better.
- The new flue comprises, in its main parts, two concentric tubes, one of which is internal and through, while the other is external and closed at the ends and is provided with two connection openings (unions).
- Each one of the two openings of the external tube is positioned on the lateral surface of said tube, near one of its ends.
- A fan, or another forced ventilation means is provided to draw the air from the zone around the stove and blow it into the lower opening.
- Between the external and the internal tube a helical foil is provided to create a forced path for the blown air, between the two tubes and from one opening of the external tube to the other.
- The new flue constituted as described above replaces completely or partially the flue positioned directly on the stove; the upper outlet of the internal tube of the new flue is connected with the remaining part of the flue that conveys the flue gases towards the outside.
- The flue gases emitted by the stove pass through the internal tube of the new flue, transferring a considerable part of their heat to the internal tube itself.
- The air blown in between the internal and the external tube follows the entire spiral-shaped path defined by the foil positioned between the two tubes and flows out through the upper opening. Along the spiral-shaped path, the air that has been blown in receives heat from the internal tube, so that it will heat the room when it flows out of the upper opening of the new flue.
- It is possible to connect said upper opening of the flue with a tube or duct that conveys the air heated by the new flue into another room.
- The new flue, constructed as described above, makes it possible to recover part of the heat that otherwise would be dispersed towards the outside and heat the room in which the stove is positioned or even another room.
- The flue gases are not negatively affected by the temperature decrease, since the quantity of heat still transported by said gas does not prevent the stack effect.
- The air heated by means of the new flue can easily heat another room not directly exposed to the presence of the stove.
- The following is just an example among many of a practical embodiment of the invention in question, illustrated in the enclosed drawing.
- The figure shows the new flue, in partial section, comprising an internal tube (1) into which the flue gases flow, an external tube (2) concentric with the internal tube (1), a helical foil (3) included between the external tube (2) and the internal tube (1).
- The ends of the external tube are closed, except for two openings (2.1, 2.2) - the lower opening (2.1) and the upper opening (2.2) provided on the lateral surface of the external tube (2) itself.
- The air, if necessary blown by a fan, flows into the lower opening (2.1), follows the spiral-shaped path touching the internal tube (1) and heating up, then flows out of the upper opening (2.2) at increased temperature.
- Therefore, with reference to the above description and to the enclosed drawing, the following claims are put forth.
Claims (2)
- Flue, characterized in that it comprises two concentric tubes, one of which is internal and through, while the other is closed at the ends and provided with two openings on its lateral surface, and wherein a helical foil, positioned between the two tubes, creates a forced spiral-shaped path to be followed by the air between the lower and the upper opening of the external tube.
- Flue according to claim 1, characterized in that it is provided with a fan or another forced ventilation means that draws the air and blows it in through the lower or upper opening.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPD000065 | 2000-03-16 | ||
IT2000PD000065A ITPD20000065A1 (en) | 2000-03-16 | 2000-03-16 | CHIMNEY WITH HEAT EXCHANGER FOR HEATING THE ENVIRONMENTS |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1134532A1 true EP1134532A1 (en) | 2001-09-19 |
Family
ID=11451870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01106011A Withdrawn EP1134532A1 (en) | 2000-03-16 | 2001-03-09 | Flue with heat exchanger for heating rooms |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1134532A1 (en) |
IT (1) | ITPD20000065A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVI20090072A1 (en) * | 2009-03-31 | 2010-10-01 | Materia S R L | FUME HEAT EXCHANGER |
FR2982011A1 (en) * | 2011-10-28 | 2013-05-03 | Fadis | Heat recovery device for stove i.e. wood stove, utilized in heating installation of dwelling, has deflector arranged in free space to force air flow to partially wrap around pipe of stove, where air flow circulates in free space |
EP2653817A1 (en) * | 2012-04-18 | 2013-10-23 | Eric Piccuezzu | Device for recovering heat energy |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1031365A (en) * | 1950-02-06 | 1953-06-23 | Rekuperator K G Dr Ing Schack | Collector |
US2756032A (en) * | 1952-11-17 | 1956-07-24 | Heater | |
FR2297382A1 (en) * | 1975-01-13 | 1976-08-06 | Piot Jacques | Fuel economiser for industrial installations - has fluid heated around the base of chimney in spiral passages |
US4381819A (en) * | 1979-09-14 | 1983-05-03 | Paolino Ralph J | Flue heat reclaimer |
-
2000
- 2000-03-16 IT IT2000PD000065A patent/ITPD20000065A1/en unknown
-
2001
- 2001-03-09 EP EP01106011A patent/EP1134532A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1031365A (en) * | 1950-02-06 | 1953-06-23 | Rekuperator K G Dr Ing Schack | Collector |
US2756032A (en) * | 1952-11-17 | 1956-07-24 | Heater | |
FR2297382A1 (en) * | 1975-01-13 | 1976-08-06 | Piot Jacques | Fuel economiser for industrial installations - has fluid heated around the base of chimney in spiral passages |
US4381819A (en) * | 1979-09-14 | 1983-05-03 | Paolino Ralph J | Flue heat reclaimer |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVI20090072A1 (en) * | 2009-03-31 | 2010-10-01 | Materia S R L | FUME HEAT EXCHANGER |
FR2982011A1 (en) * | 2011-10-28 | 2013-05-03 | Fadis | Heat recovery device for stove i.e. wood stove, utilized in heating installation of dwelling, has deflector arranged in free space to force air flow to partially wrap around pipe of stove, where air flow circulates in free space |
EP2653817A1 (en) * | 2012-04-18 | 2013-10-23 | Eric Piccuezzu | Device for recovering heat energy |
FR2989765A1 (en) * | 2012-04-18 | 2013-10-25 | Eric Piccuezzu | DEVICE FOR RECOVERING CALORIFIC ENERGY |
Also Published As
Publication number | Publication date |
---|---|
ITPD20000065A1 (en) | 2001-09-16 |
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REG | Reference to a national code |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20020320 |