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
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
  • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
  • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
  • F28F9/266—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by screw-type connections
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
  • F28F9/02—Header boxes; End plates
  • F28F9/04—Arrangements for sealing elements into header boxes or end plates
  • F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
• • 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
  • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
  • F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49826—Assembling or joining
  • Y10T29/49893—Peripheral joining of opposed mirror image parts to form a hollow body

Definitions

• the invention relates to a special system of radiator production for heating plants, briefly consisting in the assembly of special basic elements which are easily obtainable using known means and processes.
• radiators which are normally used in water- and steam-operated heating plants to provide correct amounts of heat in rooms. These devices are generally constituted by hollow bodies having shapes and dimensions that vary, obtained with various materials and production processes; hot water, and in a few cases steam, both at low pressures, are made to run through these radiators; the water or steam are produced in boilers.
• Technical and technological progress have enabled various new production and application methods to be developed.
• One of the prime solutions among the most well-known, and still considerably popular, is forming single elements by cast-iron casting; each element is made up of a number of tubular conduits, i.e. the columns, which are arranged coplanar as well as parallel to one another.
• the elements connect at ends thereof to respective hollow bodies which constitute single manifolds.
• Each of these manifolds is provided with holes for enabling reciprocal connection of several of the elements, by means of nipples.
• the elements must be produced in various types, each type being basically characterised by a number and length of the columns it is made up of, so for each single type of element heating bodies, i.e. radiators, can be built having heat emission surfaces which are directly proportional to the number of elements assembled together. It follows that especially in the first stage of production it will be necessary to make holes in a large number of the elements of various typologies and store them all. Thereafter, anticipating customer requests, groups of the elements will have to be assembled, each having a specific number of the elements (of various types), before once again being stored.
• One of the known solutions consists in forming a rectangular plate from a suitable steel sheet by a simple cutting and deep pressing process. A plurality of longitudinal recesses is pressed into the rectangular plate, which recesses are equi-distanced and parallel to one another, and are interconnected perpendicularly at ends thereof by further transversal recesses.
• a further known solution quite widely adopted, consists, once more, in using a steel sheet and cutting and shaping it by pressing into rectangular plates conformed in such a way as to develop two half-shells exhibiting some parallel longitudinal recesses orthogonally connected at ends thereof by respective transversal recesses.
• the main aim of the present invention is therefore to obviate the various above-described drawbacks, which aim is achieved by the new system of production of tubular radiators which includes, for the formation process of heating elements (radiators) of a tubular type, a simple and rapid assembly operation of hollow inter-connectable elements which are connected by threaded sleeves in order to develop manifolds of widely variable dimensions, to which lengths of cylindrical pipes of variable lengths are connected, the connection of the hollow elements to one another as well as their connection to the lengths of pipe being obtained without use of welding.
• Figure 1 is a partially-exploded lateral view of a radiator of the invention
• Figures 2, 3, 4, 5 and 6 are front external views of the conformations of some hollow elements used for the formation of manifolds of radiators;
• Figure 7 is a section along line I-I of figure 6;
• Figure 8 is a front external view of a first half-shell forming the male part of a hollow element
• Figure 9 is a lateral view of the first half-shell illustrated in figure 8;
• Figure 10 is a front internal view of the first half-shell illustrated in figures 8 and 9;
• Figure 11 is a section view according to line H-II of figure 10;
• Figure 12 is an external front view of a second half-shell which is symmetrically complementary to the half-shell of figure 8, and is the female complement of the hollow element resulting from the coupling with the first half-shell;
• Figure 13 is a corresponding lateral view of the second half-shell, illustrated in figure 12;
• Figure 14 is an internal front view of the second half-shell illustrated in figures 12 and 13;
• Figure 15 is a section view according to line III-III of figure 14;
• Figure 16 is an external view of the threaded sleeve used to connect up the first half-shell and the second half-shell illustrated in the preceding figures from 8 to 15, as well as various quantities of hollow elements formed by the connection of the two half-shells;
• Figures 17 and 18 are lateral view of the sleeve of figure 16;
• Figure 19 is a section view according to line IV-IV of figure 18;
• figure 20 is a front view illustrating the conformation of the countersunk elastic "washer” used for fixing the connection of tubular lengths to respective coupling sleeves starting from a hollow element of the type illustrated in figures from 2 to 15;
• Figure 21 is a section view according to line V-V of figure 20;
• Figures 22 and 23 are an enlarged view of a detail illustrating the application of the elastic washer illustrated in figures 20 and 21 on a corresponding coupling sleeve of a relative hollow element and respectively the arrangement of the washer in the position preceding the application of a tubular length to a relative coupling sleeve, and the final arrangement in which the tubular length is applied on the coupling sleeve;
• Figures 24 and 28 are an external front view of a possible conformation of flanges applicable and fixable to ends of a relative group of hollow elements of the type illustrated from figure 2 to figure 15 and interconnected to one another with the threaded sleeve illustrated in the preceding figures 16. 17, 18 and 19; Figures 25 and 29 are lateral views of the flanges illustrated respectively in figures 24 and 28;
• Figures 26 and 30 are section view respective according to line VI-VI of figure 24 and VII-VII of figure 28;
• Figure 27 is a lateral view of the conformation of a cap which can be applied to the flange illustrated in figures 24, 26 and 28;
• Figure 31 also illustrates an external lateral view of the conformation of a further cap which is applicable to the flange illustrated in figures 25, 27 and
• Figure 32 is a detailed illustration, in a completely exploded view, of the connection by threaded sleeves of the type illustrated in figure 19, of couples of complementary half-shells illustrated in figures 11 and 15, as well as some of the resulting hollow elements and the application with an irreversible connection of a length of pipe to a corresponding sleeve starting from a hollow element.
• the basic elements are initially four in number, as follows: the hollow element 1 formed by assembly of two half-shells Ia and Ib; a length of cylindrical pipe 2; a threaded sleeve 3; an elastic washer 4.
• the hollow element 1 formed by assembly of two half-shells Ia and Ib; a length of cylindrical pipe 2; a threaded sleeve 3; an elastic washer 4.
• single flanges can be added, or flanges with accessories and sizes and conformations that are variable according to the different applications.
• the hollow element 1 will now be described in detail. With reference to figures between 2 and 5, some of the various possible external conformations of the hollow element 1 are shown, precisely the one illustrated in figure 2 in which two short bodies depart from the hollow element 1(2), which short bodies form hollow cylindrical elements 12 for connection, as will be described herein below, to two lengths of cylindrical pipe 2, up to the element of figure 6 in which six short cylindrical elements 12 depart from the hollow element 1(6) for connection to six lengths of cylindrical pipe. Obviously the number of hollow cylindrical elements 12 departing from a single hollow element 1 can be even greater than the maximum number illustrated herein.
• the hollow element 1 is also denoted by a further number in brackets, which indicates the number of hollow cylindrical elements departing therefrom; for example the element with six cylindrical elements 12 departing from it is indicated as follows: 1(6), while the one with two cylindrical elements 12 departing from it is denoted as follows: 1(2).
• the overall conformation of the hollow element 1 reference will also be made to the following group of figures, precisely from figure 7 to figure 15, in which the hollow element 1 is illustrated in full detail.
• the hollow element 1 is constituted essentially by a covering formed by assembly of two complementary half-shells Ia and Ib.
• the half- shells Ia, Ib are specular and shall be called hereinafter the male half-shell Ia and the female half-shell Ib.
• the male half-shell Ia and the female half-shell Ib differ in that as can be seen in figure 7, and in figures 11 and 15, the flat surfaces BA of the edges of the male half-shell Ia and all of the surfaces BA exhibit a small rim M while in the flat surfaces BB of the female half-shell Ib corresponding grooves F are afforded to receive the rims M.
• the rim M will engage, as will be described herein below, in the corresponding groove F.
• the male half-shell Ia preferably exhibits three projecting elements or pins Sa, which correspond, in the female half-shell Ib, to three holes Fb.
• the pins Sa will fit into the holes Fb.
• the half-shells Ia, Ib terminate inferiorly in a first short cylindrical tract 12 which is reduced by a suitable cylindrical amount determined by the cylindrical tracts 13.
• Recesses 14 alternate with the cylindrical tracts 13, which recesses 14 are short cylindrical tracts that are shorter than the other cylindrical tracts 13.
• the recesses 14 are for housing further o-rings O 5 the use of which will be better described herein below.
• figures 8 to 15 and figures 22, 23 and 32 illustrate a recess 15 which is less high but not shallower than the recesses 14, which will house an elastic washer 4 of known type illustrated in figures 20 and 21.
• the cylindrical element 2 is constituted by a length of known common piping.
• a sleeve 3 is illustrated.
• the sleeve 3 is externally formed as follows: it is composed of two consecutive cylinders 31 and 32 which decrease in diameter and terminate with a threaded tract 33.
• the first cylindrical tract 31 of the sleeve 3 is shorter than the following cylindrical tract 32.
• a further short threaded tract 33 follows the short cylindrical tract 32.
• the sleeve 3 is hollow; the hollow tract 31a corresponding to the cylindrical tract 31 is internally threaded over the whole length of the tract 31a, and then follows on within the cylindrical tract 32 with a hollow cylindrical part 32a, while internally of the short threaded tract 33 there is a cavity with prismatic hexagonal shape 33a.
• the internal tract 31a of the first cylindrical tract 31 has a female thread 33 which starts from the cylindrical tract 32 for reasons that will be explained herein below.
• an elastic washer 4 is illustrated, formed from a ring provided at a circumferential part thereof with a brief interruption. Slightly-inclined short tracts 41 extend externally thereof.
• FIG. 24 to 26 an internally-hollow flange 5 is illustrated.
• This flange 5, as shown in figures 24 and 25, has on one side thereof a short tract 51 provided with a hexagonal facing, and is very similar to normal nuts for bolts. It has an external mangle 52 and is preferably curved.
• the mantle 52 is interrupted by a flat circular surface 53 which is perpendicular thereto.
• Figure 26 which illustrates the flange 5 of figure 25 sectioned according to line VI-VI of figure 24, shows that the thread of the externally-threaded part 54 starts internally of the curved mantle of figure 25.
• figure 26 shows that the flange 5 is internally provided with a thread 55 which begins at the same start point of the short tract 51 provided with a hexagonal facing.
• the thread 55 follows on at least up until the start of the externally threaded tract 54.
• the flange 5 is further provided with a rectangular groove 53' for housing o-rings.
• a second flange 7, very similar to the flange 5, is illustrated.
• the second flange 7 is different from the first flange 5 in that it does not have a threaded projecting part 54 but instead has a short externally cylindrical tract 71.
• the second flange 7 is also hollow, and is provided, as can be seen in figure 30, with two threaded tracts 71' and 72 having different diameters. More precisely, with reference to figure 30, which is a section view according to lines VII-VII of figure 28, the tract 71' has a larger diameter and therefore a larger thread than the tract 72 which also begins line the threaded tract 52 of figure 25 in the same zone as the hexagonal tract.
• the thread 72 ends at the threaded tract 71'.
• the second flange 7 is interrupted by a circular flat surface 73 which is also provided with a groove 73' for housing an o-ring.
• a suitable glue such as a hard-wearing resin or the like on surface BA of the male half-shell
• the operator takes the two half-shells and joins them.
• the coupling is done when the surfaces BA and BB are perfectly superposed and the resin is well-spread.
• the recess F of the female half-shell Ib will meet perfectly with the projecting part M of the male half-shell Ia and the pins Sa will engage precisely and solidly in the holes Fb.
• the hollow element, i.e. the radiator element 1 is thus obtained.
• the pins Sa in the holes Fb have the aim of stiffening the radiator element 1 and preventing crushing thereof following the compression thereof during assembly.
• the operator screws together a flange 5 and a sleeve 3, by engaging the external threaded part 54 of the flange 5 to the internal threaded part 31a of the sleeve 3, thus forming a single solidly- connected part.
• the operator inserts in a radiator element 1 a first of a series of sleeves 3 coupled as above-described to the flange 5, bringing the flange 5 to strike with the surface 53 thereof against the surface 11 of the radiator element 1.
• the operator screws a second sleeve 3 to the previous sleeve 3 of the group consisting of elements 5, 3, 1.
• the operator uses a hexagonal key in the hollow part having a hexagonal section 35 and screws the sleeve 3 by the thread 31a thereof, which sleeve 3 then engages with the thread 33 of another, preceding sleeve 3.
• a further o-ring O is then inserted in the cavity 11' and a second radiator element 1 attached by repeating the previous stage of screwing a further sleeve 3 to the preceding sleeve 3 and in this way forming a plurality of sleeve-radiator-element couplings.
• the flange 7 is used to close off the series of couplings, with the thread IV screwing onto the thread 33 of the sleeve 3.
• the lower cylindrical parts 13 are added, starting with the short cylindrical tracts 12 which form a single block of the radiator element 1 and the pipes 2.
• the lower cylindrical parts 13 are introduced simply by pressing the pipe 2 towards the cylindrical tract 12 of the radiator element 1.
• the pipe 2 strikes against the surface formed by the changed of section obtained by the difference of section in passing from the cylindrical tract 12 to the cylindrical part 13, the pipe 2 is solidly coupled to the radiator element 1.
• FIG 22 shows the lower circular part of the radiator element 1, with the tracts 13, 14 and 15, detached from the pipe 2 and enlarged.
• the elastic washer 4 with its projections 41 are shown
• figure 23 shows the following stage, i.e. the introduction of one of the lower cylindrical ends, which start from the lower cylindrical pipe 12 with the cylindrical tract 13 having a smaller section but having a larger section than the cylindrical tracts 14 and 15 internal thereof of the radiator element 1 in the pipe 2, and the enlarged view of the detail of the elastic washer 4 indicates that the projections 41 flex and grip by friction, due to their elastic thrust onto the pipe 2, i.e.
• Two flanges 5 and/or 7 will remain open in order to be connected, respectively, one to the water inlet pipe and the other to the radiator discharge pipe which will send the heating fluid into circulation.

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Mutual Connection Of Rods And Tubes (AREA)
• Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
• Steam Or Hot-Water Central Heating Systems (AREA)
• Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
• Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=37441020

Family Applications (1)

Country Status (8)

Families Citing this family (4)

Family Cites Families (12)

• 2005
  • 2005-07-25 IT IT000048A patent/ITPN20050048A1/it unknown
• 2006
  • 2006-06-08 DE DE602006019252T patent/DE602006019252D1/de active Active
  • 2006-06-08 WO PCT/IB2006/001630 patent/WO2007012929A1/en not_active Application Discontinuation
  • 2006-06-08 AT AT06765543T patent/ATE493623T1/de not_active IP Right Cessation
  • 2006-06-08 CA CA002614284A patent/CA2614284A1/en not_active Abandoned
  • 2006-06-08 EA EA200800029A patent/EA012541B1/ru not_active IP Right Cessation
  • 2006-06-08 EP EP06765543A patent/EP1907782B1/de active Active
  • 2006-06-08 US US11/995,730 patent/US20080196234A1/en not_active Abandoned

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events