EP2861927B1 - Radiant plate for a radiator for heating a room - Google Patents
Radiant plate for a radiator for heating a room Download PDFInfo
- Publication number
- EP2861927B1 EP2861927B1 EP13756698.0A EP13756698A EP2861927B1 EP 2861927 B1 EP2861927 B1 EP 2861927B1 EP 13756698 A EP13756698 A EP 13756698A EP 2861927 B1 EP2861927 B1 EP 2861927B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating
- plate
- manifold
- radiator
- 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.)
- Not-in-force
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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/08—Reinforcing means for header boxes
Definitions
- each flat channel 8 has a substantially rounded hexagonal cross section, being delimited by two opposite flat walls 9 parallel to the plane L in which the body mainly lies and by four inclined walls 10, whereas each lowered contact area 3 is defined between two mutually opposite flat walls 11 in contact and parallel to the plane L in which the body mainly lies.
- the manifold 4, 6 can advantageously be flattened to facilitate the connection with the connector 16 itself.
Description
- The present invention relates to a radiant plate for a radiator for heating a room, and to a radiator that has such a radiant plate.
- A type of radiant plate radiator that is either connected to a circuit or autonomous, wherein each radiant plate is formed by one or more sheet metal bodies composed of two half-shells reciprocally united along their perimeter and at lowered internal contact areas, is well known. The body is configured in such a way as to internally delimit a circuit for a heating fluid, comprising a first flat longitudinal manifold which extends along a first side of the perimeter of the half-shells, a second flat longitudinal manifold which extends along a second side of the perimeter of the half-shells opposite the first side, and a plurality of flat channels which transversally connect the manifolds and are separated by the lowered contact areas.
- The radiator is designed to be able to withstand the operating pressure, test pressure and burst pressure in accordance with strict regulations.
- The solution widely adopted today to impart the necessary structural strength to the radiant plates, especially at the manifolds, where the most critical points are located, envisages the use of sheet steel whose thickness is increased taking into account a specific safety factor. Consequently, the sheet steel presently used for the construction of radiant plates generally has a thickness in the range of 1.1 to 1.2 mm.
- This solution, though ensuring the necessary mechanical strength, results in a high consumption of raw materials and heavy weight of the finished product.
US2957679 andFR 1422888 claim 1. - The technical task that the present invention sets itself is thus to realize a radiant plate for a radiator for heating a room which enables the aforementioned technical drawbacks of the prior art to be eliminated.
- Within the scope of this technical task, one object of the invention is to realize a radiant plate which, though ensuring the necessary mechanical strength, achieves decided savings in raw materials and ultimately a reduction in the weight of the finished product.
- Another object of the invention is to realize a robust, economical, lightweight radiant plate which assures optimized heat exchange efficiency.
- The technical task, as well as these and other objects, according to the present invention, are achieved by realizing a plate for a radiant plate radiator for heating a room, formed by a sheet metal body composed of two half-shells reciprocally united along their perimeter and at lowered contact areas spaced from said perimeter, said body being configured in such a way as to internally delimit a circuit for a heating fluid, comprising a first longitudinal manifold which extends along a first side of the perimeter of the half-shells, a second longitudinal manifold which extends along a second side of the perimeter of the half-shells opposite the first side, and a plurality of flat channels which transversally connect said first and second manifold and are separated by said lowered contact areas, wherein at least one of the manifolds has mechanical stiffening means for increasing its resistance to the pressure of the heating fluid, wherein the body mainly lies in a plane, wherein the dimension of at least one manifold in the direction orthogonal to the plane in which the body mainly lies is greater than or equal to that of the flat channels, said stiffening means comprise one or more ribs of the metal sheet configured as areas projecting toward the outside of the manifold. According to one particularly advantageous aspect of the invention, the necessary mechanical strength is imparted to the plate not by increasing the thickness of the sheet of the body it is formed from, but rather by appropriately shaping the sheet with the aim of reinforcing the weaker areas more exposed to the hydraulic pressure of the heating fluid.
- Other features of the present invention are moreover defined in the dependent claims.
- Additional features and advantages of the invention will be more apparent from the description of a preferred but non-exclusive embodiment of the radiant plate and of the radiant plate radiator according to the invention, illustrated by way of non-restrictive example in the appended drawings, in which:
-
figure 1 shows an axonometric view of a radiant plate for a radiator: -
figure 2 shows the radiant plate offigure 1 viewed frontally; -
figure 3 shows the radiant plate cut away along the line B-B offigure 2 ; -
figure 4 shows the radiant plate cut away along the line C-C offigure 2 ; -
figure 5 shows the radiant plate cut away along the line A-A offigure 2 and provided with a first type of plumbing connection; - and
figure 6 shows the radiant plate cut away along the line A-A offigure 2 and provided with a traditional type of plumbing connection. - With reference to the aforementioned figures, there is shown a
radiant plate 1 for a radiator for heating a room. - The radiator can comprise one or more
radiant plates 1 connected in cascade and is generally installed so that it mainly lies in a vertical plane. - Each
radiant plate 1 is formed by a sheet metal body, generally of steel, composed of two half-shells 2 reciprocally united, by welding, along their perimeter and at loweredcontact areas 3 spaced from their perimeter. - The body has a much smaller dimension in the direction Z (indicated by an arrow in
figure 3 ), orthogonal to the plane L in which it mainly lies, than in the two directions X, Y (indicated by arrows infigure 2 ), which are orthogonal to each other and parallel to the plane L in which it mainly lies L (indicated by dot-dash line infigure 4 ). - The body is configured in such a way as to internally delimit a circuit for a heating fluid, comprising a first
longitudinal manifold 4, which extends along afirst side 5 of the perimeter of the half-shells 2, a secondlongitudinal manifold 6, which extends along asecond side 7 of the perimeter of the half-shells 2 opposite to thefirst side 5, and a plurality offlat channels 8 which transversally connect thefirst manifold 4 to thesecond manifold 6 and are separated by means of the loweredcontact areas 3. - More precisely, each
manifold flat channels 8, as well as theareas 3, are parallel to one another and equally spaced and extend along a straight longitudinal axis which is orthogonal to that of themanifolds - In particular, each
flat channel 8 has a substantially rounded hexagonal cross section, being delimited by two oppositeflat walls 9 parallel to the plane L in which the body mainly lies and by fourinclined walls 10, whereas each loweredcontact area 3 is defined between two mutually oppositeflat walls 11 in contact and parallel to the plane L in which the body mainly lies. - Advantageously, at least one of the
manifolds manifolds - The reinforcement means preferably comprise one or
more reinforcement ribs 12 obtained by suitably shaping the metal sheet of the half-shells 2 in the area that forms themanifolds - The half-
shells 2 are configured in such a way that at least onemanifold flat channels 8. - In particular, each
manifold - The
ribs 12 are preferably configured asareas 13 of the sheet which project toward the outside of themanifolds - In this manner, the
ribs 12 contribute on one hand to increasing the passage section for the heating fluid supplied bymanifolds manifolds figures 5 and6 , which illustrate the path of the heating fluid, with a consequent improvement in the overall heat exchange efficiency. - Each
area 13 extends along the axial extension of aflat channel 8, and preferably extends for the whole transversal extent of themanifold - Therefore, the
manifold areas 13 that are in greater relief due to the presence of theribs 12, alternating with areas that are inlesser relief 21, where noribs 12 are present, but which nonetheless have a dimension in direction Z that is preferably is greater than or equal to that of theflat channels 8. - Along the transversal direction of each
manifold areas 13 have a variable distance in direction Z from theareas 21, and in particular this distance is progressively reduced proceeding from the end of theflat channel 8 to the perimetrical side of the half-shells 2. - In the area where a
hole 15 is provided for theplumbing connector 16, themanifold connector 16 itself. - The plumbing connector in
figure 5 , specially designed for the new plate, comprises abushing 17 having a flat end fixed against the inner side of the flattened area of themanifold bushing 17 that is external to the plate is introduced at a right angle into a coupling 19 and is provided withradial holes 18 for the passage of the heating fluid from the coupling 19 to themanifold - The
plumbing connector 16 shown infigure 6 is instead of a traditional type and is mounted with the aid of aring 20 fixed inside themanifold - Thanks to the stiffening means provided, a sheet of reduced thickness can be used for the half-
shells 2, in particular a sheet steel of a thickness ranging between 0.7 mm and 0.9 mm, with obvious positive repercussions in terms of savings of raw materials and reduction in the weight of the finished product. - It has been found that in this range of sheet thickness the heat exchange efficiency remains practically unchanged compared to that obtainable with the thicknesses traditionally adopted.
- The radiator that is realizable with such a radiant plate can be connected to a circuit or be autonomous and the heating fluid is preferably water, a water and glycol mixture, or diathermic oil.
- The radiant plate thus conceived is susceptible of numerous modifications and variants, all falling within the scope of the inventive concept; moreover, all the details may be replaced with other technically equivalent ones.
- In practice, all of the materials used, as well as the dimensions, can be any whatsoever according to need and the state of the art.
Claims (10)
- A plate (1) for a radiant plate radiator for heating a room, formed by a sheet metal body composed of two half-shells (2) reciprocally united along the perimeter thereof and at lowered contact areas (3) spaced from said perimeter thereof, said body delimiting a circuit for a heating fluid, comprising a first longitudinal manifold (4) which extends along a first side (5) of the perimeter of the half-shells (2), a second longitudinal manifold (6) which extends along a second side (7) of the perimeter of the half-shells (2) opposite the first side (5), and a plurality of flat channels (8) which transversally connect said first and second manifold (4, 6) and are separated by said lowered contact areas (3), wherein at least one of the manifolds (4, 6) has mechanical stiffening means for increasing the resistance thereof to the pressure of the heating fluid, characterized in that the body mainly lies in a plane (L), in that the dimension of at least one manifold (4,6) in the direction orthogonal to the plane (L) in which the body mainly lies is greater than or equal to that of the flat channels (8), said stiffening means comprising one or more ribs of the metal sheet (12) configured as areas (13) projecting toward the outside of the manifold.
- The plate (1) for a radiant plate radiator for heating a room according to any preceding claim, characterized in that at least one manifold (4, 6) has a rounded cross section at least along a main longitudinal portion thereof.
- The plate (1) for a radiant plate radiator for heating a room according to any preceding claim, characterized in that at least one manifold (4, 6) has a flattened area provided with a hole (15) for inserting a plumbing connector (16).
- The plate (1) for a radiant plate radiator for heating a room according to any preceding claim, characterized in that at least one projecting area (13) extends along the extension of a flat channel (8).
- The plate (1) for a radiant plate radiator for heating a room according to any preceding claim, characterized in that at least one projecting area (13) extends for the entire transversal extent of the manifold (4, 6).
- The plate (1) for a radiant plate radiator for heating a room according to any preceding claim, characterized in that said manifold (4, 6) comprises, in an axial direction, a sequence of projecting areas (13) that are in greater relief due to the presence of the ribs (12), alternating with areas that are in lesser relief (21), where no ribs (12) are present, but which have a dimension in the direction orthogonal to the plane (L) in which the body mainly lies that is greater than or equal to that of the flat channels (8).
- The plate (1) for a radiant plate radiator for heating a room according to the preceding claim, characterized in that along the transversal direction of the manifold (4, 6) the projecting areas (13) have a variable distance from the areas in lesser relief (21) in the direction orthogonal to the plane (L) in which the body mainly lies.
- The plate (1) for a radiant plate radiator for heating a room according to the preceding claim, characterized in that said distance progressively decreases proceeding from the end of the flat channel (8) to the perimetrical side of the half-shells (2).
- The plate (1) for a radiant plate radiator for heating a room according to the preceding claim, characterized in that said sheet metal is steel and has a thickness ranging between 0.7 mm and 0.9 mm.
- A radiator for heating a room, characterized in that it comprises at least one radiant plate in accordance with any preceding claim.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT001038A ITMI20121038A1 (en) | 2012-06-15 | 2012-06-15 | RADIANT RADIATOR PLATE FOR THE HEATING OF AN ENVIRONMENT |
PCT/IT2013/000173 WO2013186801A1 (en) | 2012-06-15 | 2013-06-14 | Radiant plate for a radiator for heating a room |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2861927A1 EP2861927A1 (en) | 2015-04-22 |
EP2861927B1 true EP2861927B1 (en) | 2018-09-12 |
Family
ID=46397455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13756698.0A Not-in-force EP2861927B1 (en) | 2012-06-15 | 2013-06-14 | Radiant plate for a radiator for heating a room |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2861927B1 (en) |
IT (1) | ITMI20121038A1 (en) |
WO (1) | WO2013186801A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2957679A (en) * | 1955-06-02 | 1960-10-25 | Olin Mathieson | Heat exchanger |
FR1398806A (en) * | 1964-03-13 | 1965-05-14 | Finissage De Produits Metallur | Radiator |
FR1422888A (en) * | 1964-09-04 | 1966-01-03 | Finissage De Produits Metallur | New heat exchanger |
FR1566565A (en) * | 1968-03-20 | 1969-05-09 | ||
FR1566662A (en) * | 1968-03-26 | 1969-05-09 | ||
CA2392610C (en) * | 2002-07-05 | 2010-11-02 | Long Manufacturing Ltd. | Baffled surface cooled heat exchanger |
-
2012
- 2012-06-15 IT IT001038A patent/ITMI20121038A1/en unknown
-
2013
- 2013-06-14 WO PCT/IT2013/000173 patent/WO2013186801A1/en active Application Filing
- 2013-06-14 EP EP13756698.0A patent/EP2861927B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
EP2861927A1 (en) | 2015-04-22 |
WO2013186801A1 (en) | 2013-12-19 |
ITMI20121038A1 (en) | 2013-12-16 |
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