WO2007028824A1 - Heating and cooling devices, and ribs thereon - Google Patents

Heating and cooling devices, and ribs thereon Download PDF

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Publication number
WO2007028824A1
WO2007028824A1 PCT/EP2006/066169 EP2006066169W WO2007028824A1 WO 2007028824 A1 WO2007028824 A1 WO 2007028824A1 EP 2006066169 W EP2006066169 W EP 2006066169W WO 2007028824 A1 WO2007028824 A1 WO 2007028824A1
Authority
WO
WIPO (PCT)
Prior art keywords
ribs
heating device
heating
stove
cooling device
Prior art date
Application number
PCT/EP2006/066169
Other languages
French (fr)
Inventor
Jonny SIÖSTRÖM
Original Assignee
Euro Fire Aktiebolag
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 Euro Fire Aktiebolag filed Critical Euro Fire Aktiebolag
Publication of WO2007028824A1 publication Critical patent/WO2007028824A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B7/00—Stoves, ranges or flue-gas ducts, with additional provisions for convection heating 
    • F24B7/06—Stoves, ranges or flue-gas ducts, with additional provisions for convection heating  without air ducts no material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C1/00—Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of the following groups F24C3/00 - F24C9/00; Stoves or ranges in which the type of fuel or energy supply is not specified
    • F24C1/14—Radiation heating stoves and ranges, with additional provision for convection heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media

Definitions

  • This invention pertains in general to the field of heating and cooling devices, including ribs, such as ribs on the side of a stove, suitable for transmission of heat by convection. More particularly the present invention refers to said rib.
  • the stoves according to the prior art are intended to burn the fuel, such as wood, as completely as possible and transmit the heat released thereby into the room. Because the ability of cast iron and other metals to absorb and subsequently release and radiate large amounts of heat these stoves were often constructed of these materials.
  • the ribs according to the prior art were placed on the top, bottom, and sides of the stove, horizontally or vertically.
  • the design of the ribs according to the prior art has mainly been directed to fulfil an aesthetic purpose, and not so much a technical purpose.
  • the ribs according to the prior art are by far not perfect in sense of maximizing the convection and radiation of heat from the stove. None of the stoves according to the prior art take into account how air moves when subjected to temperature differences .
  • ribs, and stoves and heat exchangers provided with ribs, which ribs provide an improved convection, radiation and/or transfer of heat from said stove or heat exchanger, would be advantageous, and in particular ribs that are designed to take into account how air moves when subjected to temperature differences appearance would be advantageous.
  • a heating device including at least one rib, according to claim 1, is characterized in that said at least one rib is vertically angled in respect of a vertical axis when said heating device (101) is in a using position.
  • a cooling device, according to claim 7, and a rib, according to claim 9, are also provided.
  • Fig. 1 is planar view of a side of a stove according to one embodiment of the present invention. Description of embodiments
  • a stove 101 comprising a side 102.
  • ribs 103 are located on the side 102 .
  • the ribs 103 are positioned in a vertically angled position, in an angle ⁇ , in respect of a vertical axis when the stove is placed in use position. This means a position in which the stove is intended to be used.
  • the stove 101 When the stove 101 is in use, i.e. the stove is positioned in a using position, the heat released in the burning chamber is transferred to a stove wall.
  • the stove and therefore the stove wall, is manufactured of a material that has good heat conductive characteristics, for example iron, such as cast iron, and other metals.
  • the stove 101 starts to conduct heat to the air surrounding the stove 101.
  • the medium surrounding the heating device may be any other medium, such as water, milk, alcohol containing liquid, or gases.
  • the air surrounding the stove 101 and specifically the air in vicinity of the stove side 102, starts to absorb heat.
  • the surrounding air starts to absorb heat conducted from the stove 101, the air also starts to move. This phenomena is accomplished since warm air has lower density than colder air. Therefore the air located in between the ribs 103, when the stove 101 and therefore the air surrounding it is heated, will start to travel to the side and upwards along the ribs 103, since the ribs 103 are angled. Therefore, the transportation, and the transportation speed, of air from the heating stove side 102 is improved, and colder air will replace the transported air in the vicinity of the ribs 103. The result is an improved efficiency in respect of heat conduction from the stove 101 to the surrounding air.
  • a heating device such as a stove 101, which heating device is configured for heating a medium in the vicinity of said heating device, provided with at ribs 103 on at least one vertical side 102 of said heating device.
  • These ribs 103 are vertically angled in respect of a vertical axis extending through said vertical side 102, whereby the medium surrounding said heating device, during heating, move to the side and upwards along said ribs 103, and said ribs 103 are angled upwards, from a back side to a front side, between which sides said vertical side is positioned, of said heating device, when said heating device is in a using position, to transport warm medium to the front side of said heating device.
  • the ribs are angled in the direction from the back to the front of the stove 101. In this embodiment heated air will be transported to the front of the stove 101, where it is most commonly appreciated.
  • the angle ⁇ with which the ribs 103 are angled in respect of a vertical axis in Fig. 1, when the stove is in a using position, may preferably be in the interval of 5 to 85°, such as 5 to 45°, and preferably 10 to 40°, such as 15, 20, 25, 30 and 35°.
  • the height of the ribs 103 may vary widely, depending on which purpose to fulfil, but in respect of ovens the height may preferably be in the interval of 5 to 100 mm, more preferably in the interval of 10 to 50 mm, such as 15, 20, 25, 30, 35, 40 and 45 mm.
  • the width of the ribs 103 may vary widely, depending on which purpose to fulfil, but in respect of ovens the width may preferably be in the interval of 5 to 100 mm, more preferably in the interval of 3 to 30 mm, such as 5, 10, 15, 20, and 25 mm.
  • a cooling device such as a liquid cooler
  • the technology is reversed, which results in that cooled liquid is transported to the side and downwards in the direction of the angled ribs. Therefore, the transportation, and transportation speed, of cooled liquid from the cooling device is improved, and warmer liquid will replace the transported liquid in the vicinity of said cooling device.
  • a cooling device which cooling device is configured for cooling a medium in the vicinity of said cooling device, provided with at least one rib on at least one vertical side of said cooling device.
  • These ribs 103 are vertically angled in respect of a vertical axis extending through said vertical side, when said cooling device is in a using position, whereby the medium surrounding said cooling device, during cooling, move to the side and downwards along said ribs 103, and said ribs 103 are angled downwards, from a back side to a front side, between which sides said vertical side is positioned, of said cooling device, when said cooling device is in a using position, to transport cold medium to the front side of said cooling device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Electric Stoves And Ranges (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Heating or cooling device, such as a stove (101) or liquid cooler, configured for heating or cooling a medium in the vicinity of said heating device, provided with at least one rib (103) on at least one side (102) of said heating device, is provided. The at least one rib (103) is vertically angled in respect of a vertical axis when said heating device is in a using position. The invention also provides a rib (103) configured for heating or cooling a medium.

Description

HEATING AND COOLING DEVICES, AND RIBS THEREON
Field of the Invention
This invention pertains in general to the field of heating and cooling devices, including ribs, such as ribs on the side of a stove, suitable for transmission of heat by convection. More particularly the present invention refers to said rib.
Background of the Invention
Since the 16th century cast iron stoves have been used to heat homes and buildings prior to the advent of electricity and the widespread use of fuel oil and gas. Today, these stoves also fulfil another purpose, namely in respect of creating an atmosphere and cosiness.
The stoves according to the prior art are intended to burn the fuel, such as wood, as completely as possible and transmit the heat released thereby into the room. Because the ability of cast iron and other metals to absorb and subsequently release and radiate large amounts of heat these stoves were often constructed of these materials.
Developments in respect of these stoves have mainly been directed to the field of increasing the convection and radiation of heat by increasing the outer area, facing the outer air, of said stove, to thereby increase the convection area. To satisfy this aspect the manufacturers of stoves provided the stoves with ribs.
The ribs according to the prior art were placed on the top, bottom, and sides of the stove, horizontally or vertically. The design of the ribs according to the prior art has mainly been directed to fulfil an aesthetic purpose, and not so much a technical purpose. The ribs according to the prior art are by far not perfect in sense of maximizing the convection and radiation of heat from the stove. None of the stoves according to the prior art take into account how air moves when subjected to temperature differences .
Hence, improved ribs, and stoves and heat exchangers provided with ribs, which ribs provide an improved convection, radiation and/or transfer of heat from said stove or heat exchanger, would be advantageous, and in particular ribs that are designed to take into account how air moves when subjected to temperature differences appearance would be advantageous.
Summary of the Invention
Accordingly, the present invention seeks to mitigate, alleviate or eliminate one or more of the above-identified deficiencies and to provide improved ribs of the kind referred to. For this purpose a heating device, including at least one rib, according to claim 1, is characterized in that said at least one rib is vertically angled in respect of a vertical axis when said heating device (101) is in a using position.
A cooling device, according to claim 7, and a rib, according to claim 9, are also provided.
Advantageous features of the invention are defined in the dependent claims.
Brief Description of the Drawings
These and other aspects, features and advantages of which the invention is capable of will be apparent from the following description of illustrative embodiments of the present invention, reference being made to the accompanying drawings, in which
Fig. 1 is planar view of a side of a stove according to one embodiment of the present invention. Description of embodiments
The following description focuses on embodiments of the present invention applicable to ribs, and stoves and heat exchangers provided with said ribs. However, it will be appreciated that the invention is not limited to this application but may be applied to many other technical fields in which heat is to be transferred from one element to another, including for example water heaters, liquid coolers, engine blocks etc. According to Fig. 1, a stove 101 is provided comprising a side 102. On the side 102 ribs 103 are located. The ribs 103 are positioned in a vertically angled position, in an angle α, in respect of a vertical axis when the stove is placed in use position. This means a position in which the stove is intended to be used.
Therefore embodiments comprising stoves and other heat exchangers, provided with ribs in a vertical position in respect of the vertical axis of the stove, which stoves are to be positioned in an angled position in respect of a vertical axis, are also within the scope of the present invention .
When the stove 101 is in use, i.e. the stove is positioned in a using position, the heat released in the burning chamber is transferred to a stove wall. Preferably, the stove, and therefore the stove wall, is manufactured of a material that has good heat conductive characteristics, for example iron, such as cast iron, and other metals.
As the stove wall is heated the stove 101 starts to conduct heat to the air surrounding the stove 101.
In other embodiments of the present invention, when the heating device is another heating device than a stove, such as a heat exchanger or water heater, the medium surrounding the heating device may be any other medium, such as water, milk, alcohol containing liquid, or gases. When the air surrounding the stove 101, and specifically the air in vicinity of the stove side 102, starts to absorb heat. When the surrounding air starts to absorb heat conducted from the stove 101, the air also starts to move. This phenomena is accomplished since warm air has lower density than colder air. Therefore the air located in between the ribs 103, when the stove 101 and therefore the air surrounding it is heated, will start to travel to the side and upwards along the ribs 103, since the ribs 103 are angled. Therefore, the transportation, and the transportation speed, of air from the heating stove side 102 is improved, and colder air will replace the transported air in the vicinity of the ribs 103. The result is an improved efficiency in respect of heat conduction from the stove 101 to the surrounding air.
Another technical effect obtained by the angled ribs according to the present invention is that the total length of the ribs on the side of the stove 101 is increased in comparison with vertical or horizontal ribs. Thus, in one embodiment of the present invention, a heating device, such as a stove 101, is provided, which heating device is configured for heating a medium in the vicinity of said heating device, provided with at ribs 103 on at least one vertical side 102 of said heating device. These ribs 103 are vertically angled in respect of a vertical axis extending through said vertical side 102, whereby the medium surrounding said heating device, during heating, move to the side and upwards along said ribs 103, and said ribs 103 are angled upwards, from a back side to a front side, between which sides said vertical side is positioned, of said heating device, when said heating device is in a using position, to transport warm medium to the front side of said heating device.
In one embodiment of the present invention, according to Fig. 2, the ribs are angled in the direction from the back to the front of the stove 101. In this embodiment heated air will be transported to the front of the stove 101, where it is most commonly appreciated.
The angle α, with which the ribs 103 are angled in respect of a vertical axis in Fig. 1, when the stove is in a using position, may preferably be in the interval of 5 to 85°, such as 5 to 45°, and preferably 10 to 40°, such as 15, 20, 25, 30 and 35°.
The height of the ribs 103 may vary widely, depending on which purpose to fulfil, but in respect of ovens the height may preferably be in the interval of 5 to 100 mm, more preferably in the interval of 10 to 50 mm, such as 15, 20, 25, 30, 35, 40 and 45 mm.
The width of the ribs 103 may vary widely, depending on which purpose to fulfil, but in respect of ovens the width may preferably be in the interval of 5 to 100 mm, more preferably in the interval of 3 to 30 mm, such as 5, 10, 15, 20, and 25 mm.
It is also within the scope of the present invention to provide a cooling device, such as a liquid cooler, with the ribs according to the present invention. In this embodiment the technology is reversed, which results in that cooled liquid is transported to the side and downwards in the direction of the angled ribs. Therefore, the transportation, and transportation speed, of cooled liquid from the cooling device is improved, and warmer liquid will replace the transported liquid in the vicinity of said cooling device.
Thus, according to one embodiment of the present invention, a cooling device, is provided, which cooling device is configured for cooling a medium in the vicinity of said cooling device, provided with at least one rib on at least one vertical side of said cooling device. These ribs 103 are vertically angled in respect of a vertical axis extending through said vertical side, when said cooling device is in a using position, whereby the medium surrounding said cooling device, during cooling, move to the side and downwards along said ribs 103, and said ribs 103 are angled downwards, from a back side to a front side, between which sides said vertical side is positioned, of said cooling device, when said cooling device is in a using position, to transport cold medium to the front side of said cooling device.
Although the present invention has been described above with reference to specific illustrative embodiments, it is not intended to be limited to the specific form set forth herein. Other embodiments are possible within the scope of the appended claims.

Claims

1. Heating device, such as a stove (101), configured for heating a medium in the vicinity of said heating device, provided with at ribs (103) on at least one vertical side (102) of said heating device, c h a r c t e r i z e d in that said ribs (103) are vertically angled in respect of a vertical axis extending through said vertical side (102), whereby the medium surrounding said heating device, during heating, move to the side and upwards along said ribs (103), and said ribs (103) are angled upwards, from a back side to a front side, between which sides said vertical side is positioned, of said heating device, when said heating device is in a using position, to transport warm medium to the front side of said heating device.
2. The heating device according to claim 1, wherein said heating device is a stove (101) , heat exchanger, or water heater.
3. The heating device according to claim 1, wherein said medium is selected from the group consisting of air, water, milk, or alcohol containing fluid.
4. The heating device according to claim 1, wherein an angle (α) with which the at least one rib (103) is angled in respect of a vertical axis, when said heating device is in a using position, may preferably be in the interval of 5 to 85°, such as 5 to 45°, and preferably 10 to 40°, such as 15, 20, 25, 30 and 35°.
5. Cooling device, configured for cooling a medium in the vicinity of said cooling device, provided with at least one rib on at least one vertical side of said cooling device, c h a r c t e r i z e d in that said ribs (103) are vertically angled in respect of a vertical axis extending through said vertical side, when said cooling device is in a using position, whereby the medium surrounding said cooling device, during cooling, move to the side and downwards along said ribs (103) , and said ribs (103) are angled downwards, from a back side to a front side, between which sides said vertical side is positioned, of said cooling device, when said cooling device is in a using position, to transport cold medium to the front side of said cooling device.
6. The cooling device according to claim 5, wherein an angle (α) with which the at least one rib (103) is angled in respect of a vertical axis, when said cooling device is in a using position, may preferably be in the interval of 5 to 85°, such as 5 to 45°, and preferably 10 to 40°, such as 15, 20, 25, 30 and 35°.
PCT/EP2006/066169 2005-09-08 2006-09-08 Heating and cooling devices, and ribs thereon WO2007028824A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0501986A SE0501986L (en) 2005-09-08 2005-09-08 Heating and cooling devices and flanges thereon
SE0501986-4 2005-09-08

Publications (1)

Publication Number Publication Date
WO2007028824A1 true WO2007028824A1 (en) 2007-03-15

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WO (1) WO2007028824A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1062174A (en) * 1952-08-25 1954-04-20 Finned hose for radiators
GB784924A (en) * 1956-02-21 1957-10-16 Remeha Fabrieken Bv Improvements in and relating to air heaters
DE2449972A1 (en) * 1974-10-21 1976-04-29 Harald Dipl Ing Bitter Device for heat transfer to through flow of ambient air - has series of ribbed channels at right angles to one another and enclosing a housing
US4212350A (en) * 1975-04-11 1980-07-15 Mario Andreoli Modular element radiator-convector
GB2080933A (en) * 1980-07-28 1982-02-10 Europ Riscaldamento Fer A radiator element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1062174A (en) * 1952-08-25 1954-04-20 Finned hose for radiators
GB784924A (en) * 1956-02-21 1957-10-16 Remeha Fabrieken Bv Improvements in and relating to air heaters
DE2449972A1 (en) * 1974-10-21 1976-04-29 Harald Dipl Ing Bitter Device for heat transfer to through flow of ambient air - has series of ribbed channels at right angles to one another and enclosing a housing
US4212350A (en) * 1975-04-11 1980-07-15 Mario Andreoli Modular element radiator-convector
GB2080933A (en) * 1980-07-28 1982-02-10 Europ Riscaldamento Fer A radiator element

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Publication number Publication date
SE0501986L (en) 2007-03-09

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