EP0838654A2 - Radiateur modulaire - Google Patents

Radiateur modulaire Download PDF

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Publication number
EP0838654A2
EP0838654A2 EP97118521A EP97118521A EP0838654A2 EP 0838654 A2 EP0838654 A2 EP 0838654A2 EP 97118521 A EP97118521 A EP 97118521A EP 97118521 A EP97118521 A EP 97118521A EP 0838654 A2 EP0838654 A2 EP 0838654A2
Authority
EP
European Patent Office
Prior art keywords
radiator
specifically
household
male
female
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97118521A
Other languages
German (de)
English (en)
Other versions
EP0838654A3 (fr
Inventor
Serafino Bossini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rbm SpA
Original Assignee
Rbm SpA
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 Rbm SpA filed Critical Rbm SpA
Publication of EP0838654A2 publication Critical patent/EP0838654A2/fr
Publication of EP0838654A3 publication Critical patent/EP0838654A3/fr
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/088—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal for domestic or space-heating systems
    • 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
    • F28D1/04—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 tubular conduits
    • F28D1/053—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 tubular conduits the conduits being straight
    • F28D1/05308—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
    • 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
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets
    • F28F9/167—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets the parts being inserted in the heat-exchange conduits
    • 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
    • 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

Definitions

  • the present invention relates to a radiator, specifically a household radiator, of the kind consisting of a plurality of metal heating elements, each one formed by manifold elements and at least one radiant element, which are realized separately and then connected together.
  • Household radiators are conventionally obtained by connecting in series a plurality of heating bodies, each one obtained by casting, wherein water or the fluid used as the vector for the thermal energy are flowing.
  • Said heating bodies consist in main line of a plurality of upright tubes acting as radiant elements to ensure thermal exchange with the environment; said upright tubes end up in hollow manifold elements usually provided with a large diameter hole in a middle position.
  • two conduits are obtained, i.e. an upper and a lower pipe, the upper conduit usually representing the fluid inlet conduit to the radiator and the lower one the outlet conduit.
  • each conduit The holes on the manifolds forming each conduit are usually coupled by means of threaded bore plugs of the so-called "GAS" type, as used for the coupling of water pipes or through blind plugs.
  • GAS threaded bore plugs of the so-called "GAS” type, as used for the coupling of water pipes or through blind plugs.
  • Composable or sectional radiators are also known, where the manifold elements and the heating tubes of one same heating body are manufactured separately and subsequently coupled together during assembly.
  • Coupling is usually done by welding the tubes on proper protrusions provided on the manifold elements.
  • radiators are also subject to corrosion processes caused by various agents.
  • oxygen available in water tends to dissociate with heating, thus favoring oxidation and corrosion.
  • Microsuspensions in water tend to deposit within the hydrothermal circuit where there is a lower fluid rate (typically the manifolds); such a deposit of microsuspensions causes an initial oxidation of the iron contained either in the steel or alloy being used.
  • manifold elements - wherein as said above microsuspensions accumulate and corrosion is started - are needed, which are made of alloys where iron oxidation is difficult, such as cast iron or iron-free alloys, e.g. brass.
  • selection of materials to make upright tubes should be made according to other parameters, such as maximization of the radiant power or material costs for low-cost radiators.
  • an outspread method is to use forced couplings, i.e. with the manifold provided with holes whose diameter is slightly smaller than the outside diameter of the upright tubes, thus causing a certain interference between the tube and the hole. Then, upright tubes are inserted by exerting a pressure on the coupling site through the use of proper instruments.
  • radiator made of metal material specifically a household radiator, whose simple and cost-effective manufacture is obtained through an efficient mechanical coupling, also warranting hydraulic sealing.
  • a further object of the present invention is to provide a radiator, specifically a household radiator, which is not subject to corrosion, though maintaining a high radiant power.
  • Fig. 1 shows a radiator 1 made of metal material suitable for household heating systems, consisting of a plurality of elements 2, which may be formed either by two columns elements 3 or three columns elements 4.
  • Elements 2 consist of two headers 5 acting as a lower and upper manifold respectively, and two or more upright columns 6.
  • Headers 5 have each one a threaded bore 7 with a large diameter; thus, as it can also be seen from Fig. 2, when the elements 2 are connected in series, the threaded holes 7 of the elements 2 are all on the same axis and define conduits 8. Said elements 2 are connected through threaded connectors 9 (see Fig. 2), which are inserted on the threaded holes 7. The holes of the farthest elements 2 are engaged by threaded plugs 10 (see Fig. 3), which may be either threaded plugs 11 or blind plugs 12, as to whether they are used for connection with an hydraulic pipeline - not shown here - or as terminals for the hydrothermal circuit.
  • the vector fluid of thermal energy conveys into the radiator 1 through the conduits 8, generally the upper conduits, and is distributed by each upper header 5 to the respective columns 6.
  • Said columns 6 operate both as heat exchangers with the environment and as radiant elements, distributing thermal energy to the environment.
  • the lower conduits 8 defined by the various lower headers 5 will then provide for fluid outlet.
  • Fig. 4 shows a partial section of the three-columns element 4 represented in fig. 1.
  • This element 4 shows, for clarification's sake, an upper header 5A and a lower header 5B.
  • Three lengthwise axis A, B, C can also be identified.
  • Headers 5A and 5B have some protrusions 15 (three in the specific case) provided with telescopic ends 16 (males). Each protrusion 15 has two seats obtained by punching, whose form is substantially that of a circular flaring 17 (blind).
  • a ring seal gasket 18 is provided for each protrusion 15, made of rubber or other material normally used for hydraulic sealing of household heating systems; said ring seal gasket 18 is housed on a depression 20 of the telescopic end 16, as it can be seen looking at the protrusion 15 of the header 5A on axis A.
  • the protrusion 15 is seen as a section and also the second flaring 17 can be seen, whose convex surface diametrically opposite to the other one is in sight. Also the corresponding gasket 18 is sectioned as well.
  • the protrusions 15 are partially sectioned with reference to said axis B, showing a whole view with the gasket 18 mounted on the depression 20 and both flarings 17 visible.
  • the end 23 has a larger diameter compared to the outside diameter of protrusion 15, whereas the internal surface of the end 23 of column 6 and the outside surface of the upper portion 24 of protrusion 15 are substantially complementary, save for the area where flarings 17 are located.
  • the end 23 of column 6 is inserted on the protrusion 15 and stops on a shoulder 21, as better seen in Fig. 5.
  • the gasket 18 is compressed between the extreme 23 of column 6 and the telescopic end 16.
  • the function of the telescopic end 16 is to provide, through the depression 20, a proper seat to prevent the gasket 18 from being stressed over its own flexibility limits, with the risk of being subject to permanent distortions that would affect hydraulic sealing with time.
  • the wall of the column 6 enters the flarings 17 and forms some flarings 22, thus ensuring a mechanical coupling.
  • the coupling between columns 6 and protrusions 15 can be advantageously a hot coupling, by preheating the column 6 at a temperature that is 40-50°C higher than the temperature of the protrusion 15, so that the interference in the coupling may help mechanical sealing on the protrusion 15. In this way, when the radiator 1 is subject to stress from thermal shocks and irregular hydraulic pressures, resistance to extraction is improved.
  • the heating bodies of the radiator can be obtained with a limited number of standardized components, specifically two equal headers, two or more equal tubes (depending upon the number of columns) and a couple of equal gaskets for each column.
  • the radiator described by way of example is quite simple and fast to manufacture from a mechanical machining standpoint and only requires a proper spherical punch for assembly. More specifically, if it is wished to have product quality improved, all operations can be carried out on automatic numerically controlled machines based on "total quality" criteria to prevent manufacturing rejects.
  • Hydraulic sealing is also ensured through a gasket, arranged between the internal wall of the various columns and the telescopic end of the headers protrusions, in a simple way and with a fast assembly.
  • the materials to be used can be freely chosen to obtain highest enhancement of the functional characteristics of each element (corrosion proof, radiant power, bactericide properties, recycling properties, aesthetic features .).
  • the headers can be made using a corrosion-proof material, whereas radiant and thermal exchange properties are preferred for the columns.
  • the headers can be made of nodular cast iron, offering adequate mechanical strength guaranties, when thinner thickness (e.g. 2,5-4 mm) are used, and resistance to corrosion; on the other hand, columns can be made with steel alloys, such as extruded tubes or welded die-bent rolled elements offering a good radiant result (about 400 W/m 2 ).
  • the header can be made of brass casting, whereas the columns can be obtained with copper or copper-alloy materials, which have a high radiant power and bactericide properties, should the inlet pipelines be made in polyethylene. In this way, a radiator with a high radiant capacity (750 W/m 2 ) can be obtained, though more expensive than the previous one.
  • the seal ring may be dissolved, due to the use of excessively hot fluids or diathermal oils, it can be replaced by one or more O-rings, housed in proper seats obtained on the telescopic end.
  • Another embodiment may provide for spreading the seal ring with silicone oils or graphitic grease, when fluids with a pH value from 5 to 6,5 are used.
  • a further embodiment refers to the type of the seats which can be obtained: on the protrusions of the headers, flarings and notches can be obtained in any way as provided by the present state of art, whose configurations differ from the circular one; also collars engraved all over the protrusion circumference could be obtained.
  • main line it is possible to obtain different embodiments changing the means that hinder the female element from withdrawing from the male element.
  • a further embodiment provides for the use of upright or vertical columns to form the male element, i.e. having proper telescopic ends, and headers protrusions to form the female elements for the mechanical coupling and the relevant realization of flarings on the upright columns, with a subsequent punching of the headers protrusions in said flarings.
  • the male element has protruding means instead of flarings, such as for instance flanges or indentations, onto which the female element is pressure crimped for mechanical coupling.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Executing Machine-Instructions (AREA)
  • Massaging Devices (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
EP97118521A 1996-10-28 1997-10-24 Radiateur modulaire Withdrawn EP0838654A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO960877 IT1288788B1 (it) 1996-10-28 1996-10-28 Radiatore componibile
ITTO960877 1996-10-28

Publications (2)

Publication Number Publication Date
EP0838654A2 true EP0838654A2 (fr) 1998-04-29
EP0838654A3 EP0838654A3 (fr) 1999-06-02

Family

ID=11414991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97118521A Withdrawn EP0838654A3 (fr) 1996-10-28 1997-10-24 Radiateur modulaire

Country Status (2)

Country Link
EP (1) EP0838654A3 (fr)
IT (1) IT1288788B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1085284A2 (fr) * 1999-09-17 2001-03-21 Claudio Ballardini Structure pour radiateurs et/ou chauffe-serviettes composée d'éléments modulaires
WO2005014199A1 (fr) * 2003-08-12 2005-02-17 Alberto Sacristani Procede et machines de fabrication d'un element de radiateur, element de radiateur et radiateur
WO2006013583A1 (fr) * 2004-08-04 2006-02-09 Claudio Ballardini Radiateur comprenant au moins un élement de chauffage assemblable par pieces modulaires
ITVI20080165A1 (it) * 2008-07-11 2010-01-12 Agis Spa Radiatore tubolare per impianto centralizzato di riscaldamento
CN102419117A (zh) * 2011-08-02 2012-04-18 熊金辉 组装式高分子材料散热器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2441990A1 (de) 1974-09-02 1976-03-11 Erbsloeh Julius & August Rohrregisterheizkoerper aus stranggepressten heizkoerpergliedern

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR615135A (fr) * 1925-09-11 1926-12-30 Perfectionnements aux radiateurs
FR1425677A (fr) * 1965-02-16 1966-01-24 Buderus Eisenwerk Radiateur tubulaire
AT327449B (de) * 1973-06-13 1976-01-26 Vmw Ranshofen Berndorf Ag Radiator
IT8648373A0 (it) * 1986-08-08 1986-08-08 Santoro Gennaro Scambiatore termico
DE4423301C2 (de) * 1994-07-02 1997-02-27 Prokon Gmbh Heizkörper für die Raumheizung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2441990A1 (de) 1974-09-02 1976-03-11 Erbsloeh Julius & August Rohrregisterheizkoerper aus stranggepressten heizkoerpergliedern

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1085284A2 (fr) * 1999-09-17 2001-03-21 Claudio Ballardini Structure pour radiateurs et/ou chauffe-serviettes composée d'éléments modulaires
EP1085284A3 (fr) * 1999-09-17 2004-08-18 Claudio Ballardini Structure pour radiateurs et/ou chauffe-serviettes composée d'éléments modulaires
WO2005014199A1 (fr) * 2003-08-12 2005-02-17 Alberto Sacristani Procede et machines de fabrication d'un element de radiateur, element de radiateur et radiateur
WO2006013583A1 (fr) * 2004-08-04 2006-02-09 Claudio Ballardini Radiateur comprenant au moins un élement de chauffage assemblable par pieces modulaires
ITVI20080165A1 (it) * 2008-07-11 2010-01-12 Agis Spa Radiatore tubolare per impianto centralizzato di riscaldamento
EP2144027A1 (fr) * 2008-07-11 2010-01-13 Agis S.p.A. Radiateur tubulaire pour installation de chauffage central
CN102419117A (zh) * 2011-08-02 2012-04-18 熊金辉 组装式高分子材料散热器
CN102419117B (zh) * 2011-08-02 2013-01-16 熊金辉 组装式高分子材料散热器

Also Published As

Publication number Publication date
EP0838654A3 (fr) 1999-06-02
ITTO960877A1 (it) 1998-04-28
IT1288788B1 (it) 1998-09-24

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