EP0038390B1 - Combination heat transfer panel and wall shield for use with stoves and other radiant heaters - Google Patents
Combination heat transfer panel and wall shield for use with stoves and other radiant heaters Download PDFInfo
- Publication number
- EP0038390B1 EP0038390B1 EP80301266A EP80301266A EP0038390B1 EP 0038390 B1 EP0038390 B1 EP 0038390B1 EP 80301266 A EP80301266 A EP 80301266A EP 80301266 A EP80301266 A EP 80301266A EP 0038390 B1 EP0038390 B1 EP 0038390B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat transfer
- curtain
- transfer panel
- curtain assembly
- radiant
- 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.)
- Expired
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Classifications
-
- 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
- F24C15/00—Details
- F24C15/36—Protective guards, e.g. for preventing access to heated parts
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/06—Casings, cover lids or ornamental panels, for radiators
- F24D19/062—Heat reflecting or insulating shields
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- 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
- F24H9/0052—Details for air heaters
Definitions
- This invention relates to a combination heat transfer panel and wall shield for use with stoves and other radiant heaters. Due to the limited nature of the supply of fossil fuels, it is apparent that these fuels should be reserved for areas in which they are uniquely useful and most critical. Residential and commercial space heating is not necessarily one of those areas. Thus, we have witnessed in recent years new interest in exploring alternative systems of harnessing energy for space heating; which energy can be derived economically from inexhaustible or replenishable sources. Such systems include nuclear reactors, geothermal and solar devices, windmills, ocean-wave-mills, etc.
- radiant heaters are most effective when installed in the middle of a room, the vast majority of installations are not of this type and mainly for aesthetic or practical reasons, the heaters are placed as close as possible to walls or corners.
- One negative effect of this type of installation is that a significant portion of the heat which is radiated from the rear of the stove is absorbed by the back wall and perhaps lost to the outdoors.
- Some manufacturers design their stoves with steel baffles attached to the rear of their units in order to minimize the amount of radiant heat produced there. Although reduced clearances can be achieved in this manner, it is clear that such a baffled unit produces less total heat than does an unbaffled stove and thus runs counter to the aim of extracting a maximum amount of heat from a given amount of fuel.
- Prior art directed toward distance reduction for radiant heaters has for the most part been restricted to specified procedures of field masonry. For example, brick walls are constructed with carefully maintained air spaces behind them to insure a free flow of cool air along the back side.
- One drawback to this method is the cost involved - in some cases additional footings are required to carry the load of the additional masonry. In many instances such footings are not feasible.
- Another method of distance reduction involves the use of prefabricated steel wall panels and hollow sheet metal pans filled with insulation. Whether or not this method of wall protection is truly effective from a safety point of view, these panels do suffer from the aesthetic standpoint.
- the invention consists in a combination heat transfer panel and wall shield for use with non-solar radiant heaters and consisting of a case adapted for location either directly against, or in space relation to, a structural wall behind a radiant heater characterised in that it comprises a base, a header, and side panels, the front of the case facing the heater having an opening to permit entrance of radiant heat within the case, a first curtain assembly mounted across the front opening of the case, a second curtain assembly mounted a spaced distance behind and substantially parallel to the first curtain assembly, thereby defining a convection chamber between the first and second curtain assemblies, a cold air inlet communicating with the lower end or with the sides of the convection chamber, and a hot air exhaust communicating with the upper end of the convection chamber.
- the invention thus has the advantages of providing a convenient, aesthetically pleasing, and functional protective covering for combustible walls, when these walls are exposed to sources of high radiant heat.
- another primary function is to provide an effective means of utilizing heat energy from a radiant heat source and redirecting or converting it in such a manner that it proves most useful for the purpose of heating space.
- Another important function of the device described herein is that of utilizing heat that normally is absorbed and lost by the walls located directly behind radiant heaters.
- the invention provides a combination heat transfer panel and wall shield for use with stoves and other radiant heaters which is simple in construction, efficient in operation, low in cost, easily maintained, and attractive in appearance.
- the hereindescribed combination heat transfer panel and wall shield is adapted for use with non-solar radiant heaters such as wood and coal burning stoves and fireplaces; as well as oil, kerosene and alcohol burning heaters and electric heaters. It is designed particularly for use with wood and coal burning stoves.
- the device is adapted for placement directly against a structural wall 10, which it shields, and behind a stove or other radiant heater (not illustrated) located nearby on the side opposite the wall.
- the device is housed in a case comprising a base 12, a pair of upstanding side walls 14 and a header 16. These structural elements are fastened to each other by means of bolts, welding, or other suitable securing means.
- the back of the case preferably has a large opening 18 to conserve material.
- the front of the case has a large central opening 20 which faces the radiant heater and admits radiant heat to the interior of the device.
- header 16 has the general contour of the letter G, arranged face down. It may be formed integrally from a single sheet of bent sheet metal. It comprises a short back wall segment 22, a top segment 24, a front wall segment 26, and a reversely bent inner segment 28, 28a. The floor 28a of the reversely bent segment is provided with opening 30 the purpose of which will appear later. Front segment 26 is provided with a long opening 32. This serves as a hot air exhaust vent for the assembly.
- the case above described houses two spaced curtain assemblies arranged parallel to each other in the plane of the case.
- the first curtain assembly indicated generally at 34, is toward the front and serves the primary function of controlling the admission of radiant energy into the interior of the case.
- the second curtain assembly indicated generally at 36, serves the primary purpose of providing a heat shield to protect wall 10.
- Both curtain assemblies serve the further purpose of directing the flow of heat trapped and/or generated by the apparatus out of hot air exhaust vent 32.
- the two curtain assemblies are spaced from each other and from the structural wall in such a manner as to provide a first, or outer, convection chamber 38 and a second, or inner, convection chamber 40.
- structural wall 10 itself provides one of the defining surfaces for inner convection chamber 40.
- the first or outer curtain assembly 34 preferably comprises a plurality of vertically or horizontally arranged louvres which preferably are arcuate in contour and which preferably are components of the venetian blind sub-assembly illustrated in Fig. 3.
- the construction of the venetian blind sub-assembly is substantially conventional. It comprises a plurality of vertical, ladder-shaped straps 42 made of fibreglass threads or other flexible, non-combustible material.
- the straps support a plurality of horizontally arranged louvres 44, and a base rail 46 in the usual manner.
- Straps 42 are supported on rollers 48 which in turn are fixed at spaced intervals to a shaft 50.
- the shaft in turn is supported rotatably on brackets 52 mounted on the floor 28a of the reversely bent terminal segment of the G-shaped header 16.
- the louvres 44 may be shifted between a first position in which one of their faces is toward the front, a second position in which the other of their faces is toward the front, or to any intermediate position. This makes it possible to adjust the curtain so that it either absorbs the radiant energy entering through opening 20 or reflects it back to the exterior.
- the venetian blind assembly may be positioned and spaced by means of the wire clips spacers indicated generally at 54 and illustrated particularly in Figs. 1 and 3. They include a central, reversely bent central segment 56 which is secured to the adjacent side wall 14 by means of bolts 58. A bent anchoring segment 60 penetrates the adjacent end of rail 46. The opposite terminal portion 62 extends downwardly and abuts against the inner front of the case, thereby insuring a properly spaced relation between the outer curtain assembly 34 and the inner curtain assembly 40.
- the curtain comprises a sheet 66, which is preferably a corrugated sheet of highly heat conductive aluminum or other incombustible material.
- a corrugated sheet is preferred because of its increased surface area, because it can be rolled up for packaging, and because of its increased rigidity and strength.
- curtain 66 terminates at its upper end short of header 16 and at its lower end short of base 12. There thus is provided a passageway which is a continuation of cold air inlet 64 at the bottom of the curtain and another passageway which communicates with hot air vent 32 at the upper end of the curtain.
- the illustrated means for hanging curtains 66 comprises a plurality of hooks 68 the upper bent ends of which are welded or otherwise affixed to the undersurface of top segment 24 of the header 16 and the lower bent portions of which enter openings in the upper margin of curtain 66, provided for the purpose of hanging the curtain.
- the cold air inlet is provided at the lower end of the case
- another embodiment of the invention might provide for the introduction of cold air from the sides, either into the front convection chamber 38, or into the rear chamber 40, or into both.
- experience indicates that either one or both curtains should extend either close to or all the way to the base 12 in order to maximize the chimney effect within the panel.
- a back wall of aluminum foil or other similar material might be placed over the combustible structural wall 10 to provide additional protection against the hazard of fire.
- a sheet of heat absorbent glass might be placed in front of the outer louvered curtain 34 to maximise the chimney effect of convected warm air in convection chambers 38, 40.
- a mechanical blower might be provided to force air through the apparatus at an accelerated rate.
- the space behind inner curtain 36 might be filled with fibreglass or other incombustible insulation.
- louvered curtains 34 might be used, and the louvres might be arranged in either vertical or horizontal configurations.
- the inner curtain 66 might be coated with various special coatings, for example, a selective absorbing coating which absorbs radiant heat efficiently but which does not radiate heat well, thereby absorbing heat re- radiated from front curtain 34 and from structural wall 10.
- a selective absorbing coating which absorbs radiant heat efficiently but which does not radiate heat well, thereby absorbing heat re- radiated from front curtain 34 and from structural wall 10.
- the operation of the hereindescribed combination heat transfer panel and wall shield is as follows: When mounted against a combustible structural wall 10 and screening the same from a stove or other closely juxtaposed radiant heater, the heat transfer panel receives radiant energy from the radiant heater through its front opening 20. If it is desired to reflect the heat back into the space from which it comes, louvres 44 are arranged with their convex reflective surfaces facing outwardly as shown in Fig. 3.
- the louvres are adjusted with their concave black heat absorbing surfaces facing outwardly as shown in Fig. 5.
- the heat energy is absorbed and transferred to the first and second convection chambers 38 and 40, respectively, where a chimney effect is established.
- Cold air is drawn into the bottom of the unit through cold air inlet 64 and passes upwardly through convection chambers 38, 40. It exhausts from the unit through hot air vent 32.
- either of two treatments may be used with respect to inner curtain 66.
- Different field conditions may require different treatments to realise fully both the benefits of heat transfer and of adequate wall protection.
- louvres 44 may be opened to various angles.
- a minimum chimney effect in front convection chamber 38 will result from a wide open, that is horizontal, position such as is shown in Fig. 4.
- the front of the panel may be constructed of a series of fixed louvres.
- the fixed louvre system will by itself intensify the conduction of heat around the unit due to the irregular surfaces of the louvres and to the increased surface exposed, as compared to that provided by monolithic flat surfaces.
- Inlet and exhaust air may be supplied and delivered in a variety of combinations through associated duct work or dampers, not illustrated, to suit the needs of the particular installation.
- cooler room air may be introduced, circulated through the convection chambers and returned to either the same room, to an adjacent or upstairs room, or out of doors.
- Cool outdoor air may be introduced and directed either back outdoors, into the heated room, or into an adjacent or upstairs room.
- Adjacent room air may be introduced and circulated in like manner.
- the unit standing closely adjacent the combustible structural wall 10 serves as a shield which prevents combustion of the wall. Accordingly, it is possible to place the stove or other radiant heater much closer to the wall than otherwise would be possible, thereby conserving a significant square footage of floor space which then may be put to a useful purpose.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Building Environments (AREA)
- Electric Stoves And Ranges (AREA)
- Blinds (AREA)
- Tunnel Furnaces (AREA)
- Drying Of Solid Materials (AREA)
- Central Heating Systems (AREA)
Abstract
Description
- This invention relates to a combination heat transfer panel and wall shield for use with stoves and other radiant heaters. Due to the limited nature of the supply of fossil fuels, it is apparent that these fuels should be reserved for areas in which they are uniquely useful and most critical. Residential and commercial space heating is not necessarily one of those areas. Thus, we have witnessed in recent years new interest in exploring alternative systems of harnessing energy for space heating; which energy can be derived economically from inexhaustible or replenishable sources. Such systems include nuclear reactors, geothermal and solar devices, windmills, ocean-wave-mills, etc.
- Included in this category of alternative energy systems is the wood or coal burning heater/stove. Although wood is not an inexhaustible source of energy, it is replenishable. The revival of the traditional Franklin iron stove has been accompanied by the development of numerous refined embodiments of the traditional stove. New features include the principles of air-tightness, thermostatic control, pre-heating of combustion air, etc. All such features tend to increase the efficiency of combustion so as to maximise the extraction of useful heat from a given amount of fuel.
- Although the recent proliferation of iron and steel heater/stoves may well help to ease the burden on petroleum supplies, their installation in conventional wood-frame structures can present problems of safety and convenience. One fundamental problem is the fact that such radiant heaters must be installed with specific minimum clearances from combustibles, if they are to be installed safely. Such clearances can exceed three feet in some cases. This means that the floor space behind such a stove can be virtually useless to the home owner, floor space for which he has paid dearly.
- Although radiant heaters are most effective when installed in the middle of a room, the vast majority of installations are not of this type and mainly for aesthetic or practical reasons, the heaters are placed as close as possible to walls or corners. One negative effect of this type of installation, from an efficiency point of view, is that a significant portion of the heat which is radiated from the rear of the stove is absorbed by the back wall and perhaps lost to the outdoors. Some manufacturers design their stoves with steel baffles attached to the rear of their units in order to minimize the amount of radiant heat produced there. Although reduced clearances can be achieved in this manner, it is clear that such a baffled unit produces less total heat than does an unbaffled stove and thus runs counter to the aim of extracting a maximum amount of heat from a given amount of fuel. Prior art directed toward distance reduction for radiant heaters has for the most part been restricted to specified procedures of field masonry. For example, brick walls are constructed with carefully maintained air spaces behind them to insure a free flow of cool air along the back side. One drawback to this method is the cost involved - in some cases additional footings are required to carry the load of the additional masonry. In many instances such footings are not feasible.
- Another method of distance reduction involves the use of prefabricated steel wall panels and hollow sheet metal pans filled with insulation. Whether or not this method of wall protection is truly effective from a safety point of view, these panels do suffer from the aesthetic standpoint.
- Other methods include the use of various factory-made precast cement panels which are installed with spacers to insure the free flow of cool air on the backside. In various ways, these panels all suffer from problems of weight, cost, inconvenience and aesthetics.
- The invention consists in a combination heat transfer panel and wall shield for use with non-solar radiant heaters and consisting of a case adapted for location either directly against, or in space relation to, a structural wall behind a radiant heater characterised in that it comprises a base, a header, and side panels, the front of the case facing the heater having an opening to permit entrance of radiant heat within the case, a first curtain assembly mounted across the front opening of the case, a second curtain assembly mounted a spaced distance behind and substantially parallel to the first curtain assembly, thereby defining a convection chamber between the first and second curtain assemblies, a cold air inlet communicating with the lower end or with the sides of the convection chamber, and a hot air exhaust communicating with the upper end of the convection chamber.
- The invention thus has the advantages of providing a convenient, aesthetically pleasing, and functional protective covering for combustible walls, when these walls are exposed to sources of high radiant heat. In addition to its function of protecting combustible surfaces, another primary function is to provide an effective means of utilizing heat energy from a radiant heat source and redirecting or converting it in such a manner that it proves most useful for the purpose of heating space. Another important function of the device described herein is that of utilizing heat that normally is absorbed and lost by the walls located directly behind radiant heaters. Moreover the invention provides a combination heat transfer panel and wall shield for use with stoves and other radiant heaters which is simple in construction, efficient in operation, low in cost, easily maintained, and attractive in appearance.
- The invention will now be further described, by way of example, with reference to the accompanying drawings, in which:-
- Fig. 1 is a foreshortened vertical elevation of one embodiment of combination heat transfer panel and wall shield according to this invention, with parts broken away to show interior construction.
- Fig. 2 is a foreshortened transverse sectional view taken along line 2-2 of Fig. 1,
- Fig. 3 is a foreshortened longitudinal sectional view taken along line 3-3 of Fig. 1,
- Figs. 4 and 5 are fragmentary views similar to Fig. 3 but illustrate alternate operating positions of the panel.
- The hereindescribed combination heat transfer panel and wall shield is adapted for use with non-solar radiant heaters such as wood and coal burning stoves and fireplaces; as well as oil, kerosene and alcohol burning heaters and electric heaters. It is designed particularly for use with wood and coal burning stoves.
- As shown particularly in Fig. 3, the device is adapted for placement directly against a
structural wall 10, which it shields, and behind a stove or other radiant heater (not illustrated) located nearby on the side opposite the wall. - The device is housed in a case comprising a
base 12, a pair ofupstanding side walls 14 and aheader 16. These structural elements are fastened to each other by means of bolts, welding, or other suitable securing means. - The back of the case preferably has a
large opening 18 to conserve material. The front of the case has a largecentral opening 20 which faces the radiant heater and admits radiant heat to the interior of the device. - In cross section,
header 16 has the general contour of the letter G, arranged face down. It may be formed integrally from a single sheet of bent sheet metal. It comprises a shortback wall segment 22, atop segment 24, afront wall segment 26, and a reversely bentinner segment 28, 28a. The floor 28a of the reversely bent segment is provided with opening 30 the purpose of which will appear later.Front segment 26 is provided with along opening 32. This serves as a hot air exhaust vent for the assembly. - The case above described houses two spaced curtain assemblies arranged parallel to each other in the plane of the case. The first curtain assembly, indicated generally at 34, is toward the front and serves the primary function of controlling the admission of radiant energy into the interior of the case. The second curtain assembly, indicated generally at 36, serves the primary purpose of providing a heat shield to protect
wall 10. - Both curtain assemblies serve the further purpose of directing the flow of heat trapped and/or generated by the apparatus out of hot
air exhaust vent 32. - To this end, the two curtain assemblies are spaced from each other and from the structural wall in such a manner as to provide a first, or outer,
convection chamber 38 and a second, or inner,convection chamber 40. It will be observed that in the illustrated embodimentstructural wall 10 itself provides one of the defining surfaces forinner convection chamber 40. - The first or
outer curtain assembly 34 preferably comprises a plurality of vertically or horizontally arranged louvres which preferably are arcuate in contour and which preferably are components of the venetian blind sub-assembly illustrated in Fig. 3. - The construction of the venetian blind sub-assembly is substantially conventional. It comprises a plurality of vertical, ladder-
shaped straps 42 made of fibreglass threads or other flexible, non-combustible material. The straps support a plurality of horizontally arrangedlouvres 44, and abase rail 46 in the usual manner.Straps 42 are supported onrollers 48 which in turn are fixed at spaced intervals to ashaft 50. The shaft in turn is supported rotatably onbrackets 52 mounted on the floor 28a of the reversely bent terminal segment of the G-shaped header 16. - By pulling on
straps 42, or on a conventional pull cord, not illustrated, thelouvres 44 may be shifted between a first position in which one of their faces is toward the front, a second position in which the other of their faces is toward the front, or to any intermediate position. This makes it possible to adjust the curtain so that it either absorbs the radiant energy entering through opening 20 or reflects it back to the exterior. - This is accomplished by painting one side of the
louvres 44 with a white, metallic, or other radiant-energy-reflecting coating and painting the other side of the louvres with a black, or other dark coloured radiant-energy-absorbing coating. Thus, for example, when the louvres are in their Fig. 3 position, with their light coloured convex surfaces facing outwardly, they present a barrier which reflects radiant energy back into the space in which it is generated. However, when the louvres are in their Fig. 5 position, the radiant energy is absorbed by the louvres and is transmitted to the interior of the case. - The venetian blind assembly may be positioned and spaced by means of the wire clips spacers indicated generally at 54 and illustrated particularly in Figs. 1 and 3. They include a central, reversely bent
central segment 56 which is secured to theadjacent side wall 14 by means ofbolts 58. Abent anchoring segment 60 penetrates the adjacent end ofrail 46. Theopposite terminal portion 62 extends downwardly and abuts against the inner front of the case, thereby insuring a properly spaced relation between theouter curtain assembly 34 and theinner curtain assembly 40. - The construction of the cooperating
inner curtain assembly 36 is illustrated particularly in Figs. 2 and 3. - In the embodiment illustrated, the curtain comprises a
sheet 66, which is preferably a corrugated sheet of highly heat conductive aluminum or other incombustible material. The use of a corrugated sheet is preferred because of its increased surface area, because it can be rolled up for packaging, and because of its increased rigidity and strength. - It will be noted from Fig. 3 that
curtain 66 terminates at its upper end short ofheader 16 and at its lower end short ofbase 12. There thus is provided a passageway which is a continuation ofcold air inlet 64 at the bottom of the curtain and another passageway which communicates withhot air vent 32 at the upper end of the curtain. - The illustrated means for hanging
curtains 66 comprises a plurality ofhooks 68 the upper bent ends of which are welded or otherwise affixed to the undersurface oftop segment 24 of theheader 16 and the lower bent portions of which enter openings in the upper margin ofcurtain 66, provided for the purpose of hanging the curtain. - In carrying out the invention a number of alternatives are clearly possible. These are not illustrated, but are self evident from the foregoing description.
- For example, whereas in the illustrated embodiment, the cold air inlet is provided at the lower end of the case, another embodiment of the invention might provide for the introduction of cold air from the sides, either into the
front convection chamber 38, or into therear chamber 40, or into both. In any case, if cold air is introduced from the sides, experience indicates that either one or both curtains should extend either close to or all the way to the base 12 in order to maximize the chimney effect within the panel. - A back wall of aluminum foil or other similar material might be placed over the combustible
structural wall 10 to provide additional protection against the hazard of fire. - Instead of a single
inner curtain assembly 36, there might be provided a plurality of parallel curtains spaced apart to isolate a volume of air between them. - A sheet of heat absorbent glass might be placed in front of the outer
louvered curtain 34 to maximise the chimney effect of convected warm air inconvection chambers - A mechanical blower might be provided to force air through the apparatus at an accelerated rate.
- The space behind
inner curtain 36 might be filled with fibreglass or other incombustible insulation. - A plurality of
louvered curtains 34 might be used, and the louvres might be arranged in either vertical or horizontal configurations. - The
inner curtain 66 might be coated with various special coatings, for example, a selective absorbing coating which absorbs radiant heat efficiently but which does not radiate heat well, thereby absorbing heat re- radiated fromfront curtain 34 and fromstructural wall 10. - Whatever the embodiment employed, the operation of the hereindescribed combination heat transfer panel and wall shield is as follows: When mounted against a combustible
structural wall 10 and screening the same from a stove or other closely juxtaposed radiant heater, the heat transfer panel receives radiant energy from the radiant heater through itsfront opening 20. If it is desired to reflect the heat back into the space from which it comes,louvres 44 are arranged with their convex reflective surfaces facing outwardly as shown in Fig. 3. - If, on the other hand, it is desired to absorb and transfer the radiant energy, the louvres are adjusted with their concave black heat absorbing surfaces facing outwardly as shown in Fig. 5. In this case the heat energy is absorbed and transferred to the first and
second convection chambers cold air inlet 64 and passes upwardly throughconvection chambers hot air vent 32. - Depending upon the intensity of the radiant heat source and upon the nature of the
back wall 10, either of two treatments may be used with respect toinner curtain 66. The more radiane-energy-absorptive the curtain the greater will be the amount of heat transferred to the air flowing along its surface. Higher, too, however, will be the temperature of theback wall 10. The more radiant-energy-reflective thecurtain 66, the greater will be the amount of heat reflected away from itself and from theback wall 10. The result in this latter case will be a lower back wall temperature, but less heat transfer to the convected air. Different field conditions may require different treatments to realise fully both the benefits of heat transfer and of adequate wall protection. - If it is desired to decrease the chimney effect,
louvres 44 may be opened to various angles. A minimum chimney effect infront convection chamber 38 will result from a wide open, that is horizontal, position such as is shown in Fig. 4. - If none of the above intensifying effects is required, the front of the panel may be constructed of a series of fixed louvres. Although less versatile than the system of movable louvres, the fixed louvre system will by itself intensify the conduction of heat around the unit due to the irregular surfaces of the louvres and to the increased surface exposed, as compared to that provided by monolithic flat surfaces.
- Inlet and exhaust air may be supplied and delivered in a variety of combinations through associated duct work or dampers, not illustrated, to suit the needs of the particular installation.
- Thus cooler room air may be introduced, circulated through the convection chambers and returned to either the same room, to an adjacent or upstairs room, or out of doors. Cool outdoor air may be introduced and directed either back outdoors, into the heated room, or into an adjacent or upstairs room. Adjacent room air may be introduced and circulated in like manner.
- In all of these applications, the unit standing closely adjacent the combustible
structural wall 10 serves as a shield which prevents combustion of the wall. Accordingly, it is possible to place the stove or other radiant heater much closer to the wall than otherwise would be possible, thereby conserving a significant square footage of floor space which then may be put to a useful purpose.
Claims (11)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA347,805A CA1132134A (en) | 1980-03-17 | 1980-03-17 | Combination heat transfer panel and wall shield for use with stoves and other radiant heaters |
AU57137/80A AU5713780A (en) | 1980-03-17 | 1980-04-08 | Combination heat transfer panel + wall shield |
EP80301266A EP0038390B1 (en) | 1980-03-17 | 1980-04-18 | Combination heat transfer panel and wall shield for use with stoves and other radiant heaters |
AT80301266T ATE8702T1 (en) | 1980-03-17 | 1980-04-18 | COMBINED HEAT CONDUCTION AND WALL PROTECTION PANEL FOR USE ON OVENS AND OTHER RADIANT HEATERS. |
DE8080301266T DE3068658D1 (en) | 1980-03-17 | 1980-04-18 | Combination heat transfer panel and wall shield for use with stoves and other radiant heaters |
NO801141A NO801141L (en) | 1980-03-17 | 1980-04-21 | DEVICE FOR HEAT TRANSFER AND WALL PROTECTION FOR USE IN COMBINATION WITH OVEN E.L. |
DK184080A DK184080A (en) | 1980-03-17 | 1980-04-29 | COMBINED HEAT TRANSFER PANEL AND WALL SCREEN FOR USE IN CONNECTION WITH OVEN AND OTHER HEAT RADIATORS |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA347,805A CA1132134A (en) | 1980-03-17 | 1980-03-17 | Combination heat transfer panel and wall shield for use with stoves and other radiant heaters |
AU57137/80A AU5713780A (en) | 1980-03-17 | 1980-04-08 | Combination heat transfer panel + wall shield |
EP80301266A EP0038390B1 (en) | 1980-03-17 | 1980-04-18 | Combination heat transfer panel and wall shield for use with stoves and other radiant heaters |
NO801141A NO801141L (en) | 1980-03-17 | 1980-04-21 | DEVICE FOR HEAT TRANSFER AND WALL PROTECTION FOR USE IN COMBINATION WITH OVEN E.L. |
DK184080A DK184080A (en) | 1980-03-17 | 1980-04-29 | COMBINED HEAT TRANSFER PANEL AND WALL SCREEN FOR USE IN CONNECTION WITH OVEN AND OTHER HEAT RADIATORS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0038390A1 EP0038390A1 (en) | 1981-10-28 |
EP0038390B1 true EP0038390B1 (en) | 1984-07-25 |
Family
ID=34427076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80301266A Expired EP0038390B1 (en) | 1980-03-17 | 1980-04-18 | Combination heat transfer panel and wall shield for use with stoves and other radiant heaters |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0038390B1 (en) |
AT (1) | ATE8702T1 (en) |
AU (1) | AU5713780A (en) |
CA (1) | CA1132134A (en) |
DE (1) | DE3068658D1 (en) |
DK (1) | DK184080A (en) |
NO (1) | NO801141L (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108623136A (en) * | 2017-03-17 | 2018-10-09 | 秦文隆 | Air hermetic continuous hot-press molding machine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2079915A6 (en) * | 1970-02-17 | 1971-11-12 | Aluminium Francais | |
IT1009720B (en) * | 1974-04-08 | 1976-12-20 | Saira Spa Off | SOLAR PANEL |
US4050443A (en) * | 1975-06-27 | 1977-09-27 | University Patents, Inc. | Solar energy device and system |
-
1980
- 1980-03-17 CA CA347,805A patent/CA1132134A/en not_active Expired
- 1980-04-08 AU AU57137/80A patent/AU5713780A/en not_active Abandoned
- 1980-04-18 EP EP80301266A patent/EP0038390B1/en not_active Expired
- 1980-04-18 DE DE8080301266T patent/DE3068658D1/en not_active Expired
- 1980-04-18 AT AT80301266T patent/ATE8702T1/en not_active IP Right Cessation
- 1980-04-21 NO NO801141A patent/NO801141L/en unknown
- 1980-04-29 DK DK184080A patent/DK184080A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DK184080A (en) | 1981-10-30 |
CA1132134A (en) | 1982-09-21 |
NO801141L (en) | 1981-10-22 |
EP0038390A1 (en) | 1981-10-28 |
ATE8702T1 (en) | 1984-08-15 |
DE3068658D1 (en) | 1984-08-30 |
AU5713780A (en) | 1981-10-15 |
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