EP4036491A1 - Profil de convecteur - Google Patents

Profil de convecteur Download PDF

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Publication number
EP4036491A1
EP4036491A1 EP20942435.7A EP20942435A EP4036491A1 EP 4036491 A1 EP4036491 A1 EP 4036491A1 EP 20942435 A EP20942435 A EP 20942435A EP 4036491 A1 EP4036491 A1 EP 4036491A1
Authority
EP
European Patent Office
Prior art keywords
convector
profile
tube
heat exchange
disposed
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.)
Pending
Application number
EP20942435.7A
Other languages
German (de)
English (en)
Other versions
EP4036491A4 (fr
Inventor
Sergei Dmitrievich GUBIN
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP4036491A1 publication Critical patent/EP4036491A1/fr
Publication of EP4036491A4 publication Critical patent/EP4036491A4/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/006—Tubular elements; Assemblies of tubular elements with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element
    • 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
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B21C23/142—Making profiles
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/20—Heat consumers
    • F24D2220/2009—Radiators
    • F24D2220/2027—Convectors (radiators wherein heat transfer mainly takes place by convection)
    • 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
    • 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
    • F28D2001/0253—Particular components
    • F28D2001/0286—Radiating plates; Decorative panels
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/10—Secondary fins, e.g. projections or recesses on main fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded

Definitions

  • the invention relates to the field of heating of industrial and civil buildings and facilities, in particular to a convector profile.
  • heating apparatus The purpose of a heating apparatus is to transfer heat from a heat transfer medium to the air environment within a room.
  • heating apparatuses are conditionally divided into radiators and convectors.
  • Radiators transfer heat both by radiation and by convection. Their disadvantage is a large size, low operating pressure (up to 6 bar), a large volume of heat transfer medium and heating of nearby objects.
  • Convectors transmit heat generally by convection. Furthermore, they require a smaller volume of the heat transfer medium to be filled in the system.
  • the convectors are structurally configured to withstand a higher pressure in the network (up to 30 bar).
  • the most common design of the convector is a tube with fins pressed thereon and has such disadvantages as unaesthetic appearance, contamination of the inter-fin space.
  • the prior art provides a sectional radiator made of extruded aluminum profiles (RF patent No. 2254521, IPC F24H 3/00, published on 20.06.2005), comprising inlet and outlet collectors made in the form of an asymmetric profile tube with a displaced channel and paired lugs, secured by screws, on the side of the support surface, connected thereto vertical tubular axisymmetric sections with axial radial fins, rear and front external panels, wherein each collector is made with a displaced channel of a "beak-shaped" configuration in cross-section and provided with a thickened trapezoidal support, the axisymmetrically arranged tubular channel of the section is a tube with vertical heat-dissipating fins configured as radial-axial fins, and intermediate symmetrically curved fins, on both sides of the section along the axial edge at a length equal to the thickness of the transverse side of the collector profile there is press-fitted a smooth tube with two annular grooves into the installation holes of the collectors, in said
  • the given model consists of many elements that require installation skills and are difficult to manufacture.
  • the efficiency of thermal transfer may be reduced when the entire structure is installed imporperly and when the modulus of rigidity of the heat transfer medium (saturation with minerals) is high; internal connections may get stuck due to rust or corrosion, which fact means that corrosion, clogging of channels, loss of tightness can likely take place.
  • the prior art provides a convector section ( Russian utility model patent No. 61397 , IPC F24H 3/06, published on 27.02.2007), comprising a heat exchange element having longitudinal side panels on the upper side, said longitudinal side panels extending into perpendicular thereto sections inwardly to the section to form a longitudinal gap and fins disposed between the side panels to increase the heat transfer area, said fins having a main fin and additional fin, said additional fin having a T-shaped profile, the horizontal component of which T-shaped profile extends along the longitudinal gap with a gap such that a clearance is provided relative to the internal surfaces of the shelves perpendicular to the side panels, characterized in that the section has at least two collectors for the passage of the heat transfer medium through the section, said collectors being disposed at the lower base of the side panels from their inner side and mating thereto, the main rib is disposed along the longitudinal axes of the collectors, connects same and is mated therewith, wherein through holes are provided along the entire length of the main rib
  • the above convector has two collector channels in the main profile.
  • the design is cumbersome, since it contains a complex assembly for connecting profiles to the general heating system, through an original support leg.
  • the disadvantage of the design is that the support leg performs the role of a bearing element and at the same time the function of a looped collector, which may be very unreliable in use. Also, the design allows only a floor-mounted design.
  • a convector for a water heating system and a convector section ( Russing utility model patent No. 53759 , IPC F24H 3/06, published on 27.05.2006) comprising at least two sections, each of which sections has a collector for the passage of the heat transfer medium through the section and a heat exchange element having side panels, and disposed therebetween fins to increase the heat transfer area, installation elements, wherein the side panels are disposed along the longitudinal axis of the collector for the passage of the heat transfer medium through the section, the collector outlet of each previous section is connected to the collector inlet of the next section by a connecting collector.
  • the above convector is a solid structure, which is obtained from a profile by cutting off the external and internal ribs.
  • the central element of the profile (collector), after removing the ribs, is bent at an angle so as to form two parallel profiles.
  • the support leg on the side of the protruding element (collector) results to be composite (i.e. consisting of several elements bolted to each other). The design is difficult to manufacture.
  • microcracks of the bent element are not excluded, which fact may lead to unreliability of the design and a decrease in operational characteristics, in particular, a decrease in the resistance to the pressure of the heat transfer medium, expansion of microcracks as a result of a temperature drop, a decrease in corrosion resistance.
  • the selected method for the looping of the convector also limits possible parallel arrangement of the profiles and excludes the possibility of repair and simple replacement of a convector section.
  • the technical task of the invention is to create an easy-to-manufacture aluminum convector.
  • the technical result is to increase the intensity of heat exchange, simplify the design and reduce overall dimensions, increase reliability, manufacturability and corrosion resistance.
  • the convector profile includes a tube for the passage of a heat transfer medium, external heat exchange panels and a T-shaped fin defined by an upper and lower shelfs disposed therebetween, and horizontal fins provided with through holes, wherein the convector profile is made of aluminum or aluminum alloys, the external heat exchange panels are disposed at an angle to the internal cavity, the tube has a finned internal surface and is connected to a vertical fin diametrically disposed to the T-shaped rib, wherein the through holes in the horizontal fins are made of a rectangular shape.
  • the convector profile 1 ( Fig.1 ) made by extrusion from aluminum or aluminum alloys in the form of a single part, comprising a tube 2 for the passage of a heat transfer medium (water).
  • the tube 2 ( Fig. 1 , 2 ) has a finned internal surface to increase the contact surface with the heat transfer medium.
  • On the sides of the tube 2 there are symmetrically extended horizontal fins 3 disposed in a plane passing through the longitudinal axis of the collector, said horizontal fins 3 connecting the tube 2 with external heat exchange panels 4.
  • the horizontal fins 3 provide for an increased heat transfer area.
  • through rectangular holes 5 ( Fig. 2 ) are provided at a predetermined distance from each other along the entire length of the horizontal fins 3, the through rectangular holes providing air movement.
  • the external heat exchange panels 4 are disposed along the longitudinal axis of the tube 2 and are defined by straight 6 and inclined 7 sections. Further, the straight sections 6 protrude downwards beyond the tube 2 perpendicularly to the horizontal fins 3, and the inclined sections 7 of the external heat exchange panels 4 are provided at an angle of inclination towards the inner cavity of the profile of 7-15° to increase the flow rate of heated air at the outlet of the convector.
  • the inclined sections 7 in the upper portion are rounded into the inside of the profile and extend to the perpendicular thereto shelves 8 to form a longitudinal gap.
  • the external heat exchange panels 4 also have technological thickenings 9 provided on straight 6 and inclined 7 sections to increase the strength of the structure.
  • a T-shaped fin 10 and a vertical fin 11 are provided along the entire length of the tube 2 along the axis thereof.
  • the T-shaped fin 10 extends along the upper portion of the tube 2 along the entire length thereof and is defined by the upper 12 and lower 13 shelves. Further, the upper shelf 12 is configured horizontal and extends under the longitudinal gap defined by the shelves 8 of the external heat exchange panels 4 such that the width of the upper shelf 12 exceeds that of the longitudinal gap to protect the inner surface of the convector from the penetration of foreign objects.
  • the lower shelf 13 of the T-shaped fin 10 is provided with a technological thickening 14 to increase the strength of the structure.
  • the claimed design of the convector provides an increase in thermal power by 100 W/m as compared to that of the closest analogue and the achievement of a technological efficiency equal to 113 W/kg.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP20942435.7A 2020-12-09 2020-12-30 Profil de convecteur Pending EP4036491A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2020140613A RU2752444C1 (ru) 2020-12-09 2020-12-09 Профиль конвектора
PCT/RU2020/000789 WO2022124929A1 (fr) 2020-12-09 2020-12-30 Profil de convecteur

Publications (2)

Publication Number Publication Date
EP4036491A1 true EP4036491A1 (fr) 2022-08-03
EP4036491A4 EP4036491A4 (fr) 2023-06-21

Family

ID=77226171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20942435.7A Pending EP4036491A4 (fr) 2020-12-09 2020-12-30 Profil de convecteur

Country Status (4)

Country Link
EP (1) EP4036491A4 (fr)
CN (1) CN114945779A (fr)
RU (1) RU2752444C1 (fr)
WO (1) WO2022124929A1 (fr)

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Also Published As

Publication number Publication date
RU2752444C1 (ru) 2021-07-28
WO2022124929A1 (fr) 2022-06-16
CN114945779A (zh) 2022-08-26
EP4036491A4 (fr) 2023-06-21

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