EP2372284A1 - Condenseur/Évaporateur - Google Patents

Condenseur/Évaporateur Download PDF

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Publication number
EP2372284A1
EP2372284A1 EP11159298A EP11159298A EP2372284A1 EP 2372284 A1 EP2372284 A1 EP 2372284A1 EP 11159298 A EP11159298 A EP 11159298A EP 11159298 A EP11159298 A EP 11159298A EP 2372284 A1 EP2372284 A1 EP 2372284A1
Authority
EP
European Patent Office
Prior art keywords
pipe
condenser
heat exchanging
evaporator
exchanging wall
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Withdrawn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
EP11159298A
Other languages
German (de)
English (en)
Inventor
Marco Schievano
Nicola Vendramin
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.)
Riello SpA
Original Assignee
Riello 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 Riello SpA filed Critical Riello SpA
Publication of EP2372284A1 publication Critical patent/EP2372284A1/fr
Withdrawn legal-status Critical Current

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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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • 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
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • F24H4/04—Storage heaters

Definitions

  • the present invention relates to a condenser/evaporator for production plants of hot sanitary water/heat pump conditioning comprising a tank provided with a heat exchanging wall; and at least one pipe wound about the tank and arranged in contact with the heat exchanging wall.
  • a type of condenser/evaporator used in such production plants of sanitary and/or cold water comprises the tank, adapted to contain a certain quantity of water, which must be heated or cooled by the pipe wound about the tank and through which a gas passes, e.g. R134A type gas.
  • the pipe is preferably made of aluminium or copper, i.e. materials which have a good heat transmission coefficient and which are easily cold-deformable.
  • the pipe must be shaped so as to maximize the contact surface with the tank so as to favour the heat exchange.
  • Pipes with flat faces have allowed the increase of heat exchange with respect to circular cross-section pipes but nevertheless require relatively thick walls and/or accurate fixing of the entire flat face to avoid that the flat face deforms when a fluid at operating pressure runs through the pipe and markedly reduces the contact surface between the pipe and the heat exchanging wall.
  • the main object of the present invention is to provide a condenser/evaporator for production plants of hot sanitary water and heat pump conditioning which allows the production of high heat exchange in a simple and cost-effective manner.
  • a condenser/evaporator for production plants of hot sanitary water and conditioning; the condenser/evaporator comprising a tank provided with a heat exchanging wall; and at least one pipe wound about the tank and arranged in contact with the heat exchanging wall; the condenser/evaporator being characterized in that the pipe presents a cross-section having a concave area of predetermined radius and with the concavity facing the heat exchanging wall; the pipe being dimensioned to deform at the concave area, when a fluid at operating pressure runs through the pipe, so that the concave area assumes a complementary shape to the heat exchanging wall and the pipe adheres to the heat exchanging wall along the deformed concave area.
  • the present invention determines a substantial saving of material and assembly time, and guarantees a high heat exchange.
  • Condenser 10 indicates, as a whole, a condenser for a plant for the production of hot sanitary water by heat pump (not illustrated in its entirety).
  • Condenser 10 comprises a tank 11 containing a liquid, in particular water, to be heated.
  • the water at room temperature enters the tank 11 in a direction indicated by the arrow (F1) and exits cold in a direction indicated by the arrow (F2).
  • Tank 11 has a substantially cylindrical heat exchanging wall 11A.
  • Condenser 10 comprises a pipe 100 wound about the tank 11 and arranged in contact with the heat exchanging wall 11A. Pipe 100 is wound in turns in order to create a coil 20 comprising a plurality of spirals.
  • Coil 20 has a gas inlet 21 and an outlet 22 for the same gas. In use, a gas flows through coil 20, for example R134A.
  • pipe 100 has a cross-section 150, which presents a substantially semicircular-shaped first portion 150A, and a squashed-shaped second portion 150B substantially defined by a concave area 150C with external concavity of predetermined radius (R1).
  • the concavity of concave area 150C is not to be confused with the concavity determined by the helical winding of pipe 100 about tank 11 ( figure 2 ) as the concavity determined by the helical winding of pipe 100 does not affect the shape of the cross-section of pipe 100.
  • concave area 150C ( figure 3 ) of pipe 100 faces heat exchanging wall 11A of tank 11.
  • a substantially closed space is formed between pipe 100 and heat exchanging wall 11A.
  • concave area 150C ( figure 2 ) is arranged in contact with heat exchanging wall 11A solely at opposite ends of concave area 150C.
  • concave area 150C deforms so as to assume a complementary shape and to allow pipe 100 to adhere to the heat exchanging wall 11A.
  • Pipe 100 is not shown in the operating configuration in the accompanying figures.
  • Pipe 100 is made of metal material and preferably of copper or aluminium or an alloy containing at least one of copper or aluminium.
  • pipe 100 has a first overall dimension (D1) parallel to heat exchanging wall 11A ( Figure 2 ) and a second overall dimension perpendicular to heat exchanging wall 11A.
  • first overall dimension (D1) parallel to heat exchanging wall 11A ( Figure 2 )
  • second overall dimension (D2) perpendicular to heat exchanging wall 11A.
  • the radius (R1) of the concavity must not be too small or otherwise the concavity would be too pronounced and section 150 would not deform in the appropriate manner, but nor should it be too large, as otherwise there would be the same problems which present themselves with the use of flat faces.
  • section 150 would deform in such a way that the contact between the two heat exchanging surfaces would substantially act as a generator.
  • Pipe 100 is made from a circular cross-section cylindrical pipe of diameter ( ⁇ ).
  • Pipe 100 presents a thickness (Sp) which is correlated to the diameter ( ⁇ ).
  • Sp thickness
  • ⁇ diameter
  • (Sp) 0.05 - 0.15 ( ⁇ ).
  • Coil 20 presents a uniform pitch (Ps) of the turn distribution.
  • Ps pitch of the turn distribution
  • D1 first overall dimension
  • the advantages of the present invention consist in providing a high heat exchange together with the simplicity of construction and assembly of the condenser.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP11159298A 2010-03-22 2011-03-22 Condenseur/Évaporateur Withdrawn EP2372284A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000179A ITBO20100179A1 (it) 2010-03-22 2010-03-22 Tubo per scambiatore di calore

Publications (1)

Publication Number Publication Date
EP2372284A1 true EP2372284A1 (fr) 2011-10-05

Family

ID=43304060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11159298A Withdrawn EP2372284A1 (fr) 2010-03-22 2011-03-22 Condenseur/Évaporateur

Country Status (2)

Country Link
EP (1) EP2372284A1 (fr)
IT (1) ITBO20100179A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103253469A (zh) * 2013-05-31 2013-08-21 靖江市春意空调制冷设备有限公司 一种原油开采用油罐用专用热泵
CN104729085A (zh) * 2013-12-24 2015-06-24 珠海格力电器股份有限公司 热泵热水器水箱、热泵热水器水箱设计方法及热泵热水器
WO2016197226A1 (fr) * 2015-06-09 2016-12-15 Groupe Fimiro Inc. Procédé et appareil permettant de préformer un tube et de fabriquer des échangeurs de chaleur de type à tubes enroulés en spirale à partir de ce dernier
NO20220143A1 (en) * 2022-01-28 2023-07-31 Hydro Extruded Solutions As A condenser tube, a method and an apparatus for heat exchange

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549214A1 (fr) 1983-07-12 1985-01-18 Bosch Siemens Hausgeraete Recipient d'echangeur de chaleur avec au moins une portion de paroi garnie d'un tube
EP0336751A2 (fr) 1988-04-08 1989-10-11 Siddons Ramset Limited Chauffe-eau
WO2004085927A1 (fr) 2003-03-28 2004-10-07 Siddons Stevens Developments Pty Ltd Chauffe-eau/refroidisseur d'eau
US20070209606A1 (en) * 2004-05-11 2007-09-13 Tetsurou Hamada Heat Exchanger and Water Heater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549214A1 (fr) 1983-07-12 1985-01-18 Bosch Siemens Hausgeraete Recipient d'echangeur de chaleur avec au moins une portion de paroi garnie d'un tube
EP0336751A2 (fr) 1988-04-08 1989-10-11 Siddons Ramset Limited Chauffe-eau
WO2004085927A1 (fr) 2003-03-28 2004-10-07 Siddons Stevens Developments Pty Ltd Chauffe-eau/refroidisseur d'eau
US20070209606A1 (en) * 2004-05-11 2007-09-13 Tetsurou Hamada Heat Exchanger and Water Heater

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103253469A (zh) * 2013-05-31 2013-08-21 靖江市春意空调制冷设备有限公司 一种原油开采用油罐用专用热泵
CN103253469B (zh) * 2013-05-31 2015-09-30 靖江市春意空调制冷设备有限公司 一种原油开采用油罐用专用热泵
CN104729085A (zh) * 2013-12-24 2015-06-24 珠海格力电器股份有限公司 热泵热水器水箱、热泵热水器水箱设计方法及热泵热水器
CN104729085B (zh) * 2013-12-24 2017-06-06 珠海格力电器股份有限公司 热泵热水器水箱、热泵热水器水箱设计方法及热泵热水器
WO2016197226A1 (fr) * 2015-06-09 2016-12-15 Groupe Fimiro Inc. Procédé et appareil permettant de préformer un tube et de fabriquer des échangeurs de chaleur de type à tubes enroulés en spirale à partir de ce dernier
NO20220143A1 (en) * 2022-01-28 2023-07-31 Hydro Extruded Solutions As A condenser tube, a method and an apparatus for heat exchange
NO347983B1 (en) * 2022-01-28 2024-06-03 Hydro Extruded Solutions As A condenser tube, a method and an apparatus for heat exchange

Also Published As

Publication number Publication date
ITBO20100179A1 (it) 2011-09-23

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