NO20220143A1 - A condenser tube, a method and an apparatus for heat exchange - Google Patents

A condenser tube, a method and an apparatus for heat exchange Download PDF

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Publication number
NO20220143A1
NO20220143A1 NO20220143A NO20220143A NO20220143A1 NO 20220143 A1 NO20220143 A1 NO 20220143A1 NO 20220143 A NO20220143 A NO 20220143A NO 20220143 A NO20220143 A NO 20220143A NO 20220143 A1 NO20220143 A1 NO 20220143A1
Authority
NO
Norway
Prior art keywords
condenser tube
flange
tank
profile
tube profile
Prior art date
Application number
NO20220143A
Inventor
Bjørn Vestergaard
Ulrik Jessen
Günter Kurt Rybasch
Original Assignee
Hydro Extruded Solutions As
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 Hydro Extruded Solutions As filed Critical Hydro Extruded Solutions As
Priority to NO20220143A priority Critical patent/NO20220143A1/en
Priority to CN202380010275.0A priority patent/CN116897268A/en
Priority to PCT/EP2023/052025 priority patent/WO2023144315A1/en
Publication of NO20220143A1 publication Critical patent/NO20220143A1/en

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/027—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers by helically or spirally winding elongated elements
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F28D1/06—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 the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
    • 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
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • 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
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • 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
    • 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
    • F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
    • 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
    • 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

Description

A condenser tube, a method and an apparatus for heat exchange
The present invention relates to a condenser tube, a method and an apparatus for heat exchange where a condenser tube is applied for circulation of a heat transfer medium for heat exchange purposes. More specific it relates to a condenser tube profile with one or more channels and of a certain shape, and that it can be wound in a helix manner outside a container or tank of metal for heat transfer purposes, for instance heating of domestic water.
Common technology used today is based on round, flattened round or D-shaped aluminium condenser tubes wrapped around a tank made of steel or stainless steel.
Due to poor heat conductivity in steel/stainless steel the heat is not spread far from the contact point tube-to-tank.
To transfer enough heating energy to the liquid (water) in the tank, the condenser tubes are wrapped close to each other and over a greater part of the tank. The length of the round/flattened/D-shaped condenser tube therefore needs to be rather long, often 50 - 60 meters.
Due to this length, the crossflow area of the round/ flattened/D-shaped condenser tube therefore needs to be rather large not to introduce high pressure drop in the refrigeration cycle resulting in poor energy efficiency.
In the past, this solution has been good enough as HFC refrigerant gases have been available without GWP restrictions/quota regulations until now.
In CN211470775U there is disclosed a heat dissipating coil pipe on the outer surface of a tank body of a gas synthesis section where the cross-section of the coil pipe is omega shaped. Sealing gaskets are arranged between side plates on two sides of the coil pipe and the outer surface of the tank body so that cooling medium can be brought in contact with the outer surface of the tank. Each winding has a large pitch and is arranged with a large distance between each winding.
One other example of an omega shaped cooling condenser pipe is shown in CN107525311A. The omega shaped pipe is in most cases open and doesn’t form a closed shape that can carry a pressurized medium without being welded or in other way joined to the wall of the tank. The closed tube design is described as produced by pressure casting or welding of a strip.
According to the present invention, the condenser tube can be made of aluminium or an aluminium alloy in a single extrusion process, having one or more channels. Further, the extruded tube profile is provided with an integrated flange at its periphery. The flange has a flat face against the tank. The big contact area between tube flange and tank minimizes the thermal contact resistance between flange tube and tank, hence optimizes the substantially one-dimensional heat transfer from flange tube to liquid inside the tank.
The cross-sectional shape of the condenser tube profile can be circular with a substantial flat flange and thus may have an omega shape but closed in shape. The substantially round channel shape with the flange integrated in its periphery can sustain internal pressure increase with minimum distortion of its shape and substantially without deformation of the flange, hence maintaining the good thermal contact between flange tube profile and tank. The flange can be thinner at its outer sides than in the vicinity of the channel(s) and thus having a slanting surface towards its longitudinal side edges.
By winding the condenser tube onto the outer surface of a tank for heating a fluid in a manner with windings of a pitch that brings the long sides of the flange close to each other or even to abut, a very efficient heat transfer can be obtained with a low amount of refrigerating medium necessary in the circulating circuit. One advantageous field of use for the condenser tube is that it can be arranged at the outer surface of a cylindrical tank for heating water for domestic use.
These and further advantages can be achieved by the invention according to the accompanying claims 1-13.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be further described in detail in the following by means of examples and with reference to the attached drawings 1-8 where:
Fig. 1 is a cross-section cut of a tank with a condenser tube at its outside and shows a state of the art technology used today based on round, flattened round or D-shaped tubes wrapped around a tank,
Fig. 2 is a cross-section cut of a tank with a condenser tube profile with one channel and further provided with a flange and being wrapped at the outside the tank, which is an embodiment according to the present invention,
Fig. 3 shows a condenser tube profile with a flange according to the present invention having one channel,
Fig. 4 shows a condenser tube profile with a flange according to the present invention and further provided with two channels,
Fig. 5 discloses means of connection the flange tube of Fig.4 to a circuit,
Fig. 6 discloses a chart showing dimension ranges of various channels and flanges according to the invention,
Fig. 7a indicates the heat transfer in a heater applying a state of the art D-shaped tube and in Fig 7 b there is indicated the heat transfer according to the present flange tube.
Fig. 8 briefly discloses a sanitary water heater applying round or D-shaped tube (left), and a flange tube according to the present invention (right).
DESCRIPTION OF THE INVENTION
Fig. 1 is a cross-section cut of a tank with a condenser tube at its outside and discloses the state of the art technology used today based on round, flattened round or D-shaped tubes 1 wrapped around a tank 2 made of steel or stainless steel (four windings shown). Due to poor heat conductivity in steel/stainless steel the heat is not distributed far from the contact point 3 tube-to-tank. To transfer enough heating energy to the water 4 in the tank, the tubes are wrapped close to each other 5 and over a greater part of the tank. The length of the round/D-shaped tube therefore needs to be rather long – often 50-60 meters. The crossflow area 6 of the round/flattened/D-shaped tube therefore needs to be rather large not to introduce high pressure drop in the refrigeration cycle resulting in poor energy efficiency. This results in a certain amount of heat transfer medium in the circuit.
Fig. 2 discloses two windings of a condenser tube profile 7 provided with a flange 10, 11 according to the present invention, made of aluminium or an alloy thereof and wrapped around a tank 8 made of steel or stainless steel. The tank may contain a body of water 4. The good heat conductivity properties of aluminium allow the heat to travel from the channel 12 to the flange 11 with a minimum of restriction between the parts as indicated by arrows 9.
As disclosed in Fig.3, the flange 11’ of the condenser tube profile 7’ according to the present invention covers a larger area of the tank with full surface contact and therefore minimizes the effect of the poor heat conductivity in steel/stainless steel and in the contact between tank and flange.
The large width of the flange 11’ associated with the condenser tube profile provided with channel 12’ for a heat transfer medium allows that the number of wraps around the tank can be reduced and therefore the tubular part can be shortened significantly, for instance down to 18-23 meters. This corresponds to 2 to 3 times shorter than commonly used solutions. The condenser tube can be winded in shape of a helix and advantageously with a pitch such that the sides of the flange abuts each other throughout the whole length of the helix to be able to cover as much as possible of the surface of the tank.
Preferably, the aluminium or aluminium alloy is of a A3xxx or A1xxx type with ductility allowing that a condenser tube according to the invention can be formed in a convenient manner into a helix with planar abutment of its flange onto the cylindrical surface of the tank. The medium in the tank can be liquid, preferably water.
The radius (13) between the round part and the flange must be placed close to the outer diameter and have a certain size, preferably 0,5 mm to minimize heat transfer distance from refrigerant channel to outer tip of the flange. This design also serves to ease the extrusion process.
One technical effect of the significantly shorter tubular part provided by the invention is that it allows a great reduction of the cross-sectional flow area without introducing an overall high pressure drop in the refrigeration cycle.
The flange condenser tube profile can be made much shorter and with a smaller inner diameter than that of the prior art, and thus enabling a reduction of the inner volume without compromising any functional parameters.
As a consequence, this allows low GWP (Global Warming Potential) gases such as Hydrocarbons to be used up to150 gram system charge without getting into the grey zone between 150 and 500 gram where it is allowed, but with so complicated restrictions that almost no one will take the responsibility and therefore not a practical option.
Fig. 4 shows a condenser tube profile 7’’ with a flange 11’’ according to the present invention and further provided with two channels 12’’, 12’’’. This design may be provided by one extruded profile and allows that the the cross-sectional flow area can be reduced.
Fig. 5 discloses means of connection the condenser tube profile 7’’ with channels 12’’, 12’’ of Fig.4 to a circuit that comprises a yoke formed tube with a main tube 16 having branches 17, 18.
Fig. 6 discloses a chart showing dimension ranges of various channels and flanges according to the invention;
where the relation between the inner diameter of the channel (ID) and the flange width (FW), (ID) : (FW) is in the interval (2mm - 6mm) : (20mm - 65mm,
or (FW), (ID) : (FW) is in the interval (2,5mm - 5mm) : (22,5mm – 60mm),
or (FW), (ID) : (FW) is in the interval (3mm - 4,5mm) : (22,5mm - 55mm).
Fig. 7a indicates the heat transfer in a heater applying a state of the art D-shaped tube and in Fig 7 b there is indicated the heat transfer according to the present flange tube. The arrows indicates the heat transfer and as can seen from the illustration in Fig 7b the transfer of heat is very even.
Fig. 8 briefly discloses a sanitary water heater applying round or D-shaped tube (left), and a flange tube according to the present invention (right). It can be seen that the number of windings of the tube is reduced significantly in the right illustration.
For instance, simply increasing the flange width 10 brings some Pro’s and Con’s:
For instance, simply reducing the inner diameter 12 of the tube brings some Pro’s and Con’s:
Conclusions from temporary test work:
Energy Efficiency (COP) can be increased to approx. 4,0 with system charge 150 g Propane (R290) in a typical Sanitary Hot Water Heat Pump system.
Energy Efficiency (COP) can easily be improved further with reduced inner diameter/wider flange (in combination with optimized/lower inner volume evaporator) and operate with max.150 g Propane.
Further, according to the present invention there is a possibility to reduce the amount of material used for the condenser tube compared to the state of the art tube.
Round/D-shaped (ø10x1mm) 77 g/m x 55,6 meter => 4,29 kg/unit
Flange-Tube (id ø5/Flange 25mm) 140 g/m x 23 meter => 3,22 kg/unit
The profile can be extruded in its full length and it can be coiled during production.

Claims (13)

Claims
1. A condenser tube profile (7) made of aluminium or an aluminium alloy arranged outside an object (2) of a substantially cylindrical shape for heat transfer between a medium transported inside at least one channel (12) of said condenser tube, the channel has an inner diameter (ID) and that a medium, preferably a liquid is contained in said object, wherein the tube profile (7) is winded onto the outer surface of the said object,
c h a r a c t e r i s e d i n t h a t
a substantially flat flange (11) with a flange width (FW) is integrated in parallel with a longitudinal direction of the condenser tube, where the flange is arranged in thermal contact with the outer surface of the said object (2).
2. A condenser tube according to claim 1,
c h a r a c t e r i s e d i n t h a t
the condenser tube profile (7) is winded in the shape of a helix with a pitch where one side edge of the flange abuts the other.
3. A condenser tube according to claim 1,
c h a r a c t e r i s e d i n t h a t
the condenser tube profile (7) is made by an extrusion process.
4. A condenser tube according to claim 1,
c h a r a c t e r i s e d i n t h a t
the object (2) is a tank made of steel or stainless steel.
5. A condenser tube according to claim 1,
c h a r a c t e r i s e d i n t h a t
the condenser tube is provided with two channels (12’’, 12’’’).
6. A condenser tube according to claim 1,
c h a r a c t e r i s e d i n t h a t
the condenser tube profile (7) is extruded and coiled.
7. A condenser tube according to claim 1,
c h a r a c t e r i s e d i n t h a t
the relation between the inner diameter (ID) of the channel (12) and the flange width (FW), (ID) : (FW) is in the interval (2mm - 6mm) : (20mm - 65mm).
8. A condenser tube according to claim 1,
c h a r a c t e r i s e d i n t h a t
the relation between the inner diameter (ID) of the channel (12) and the flange width (FW), (ID) : (FW) is in the interval (2,5mm - 5mm) : (22,5mm – 60mm).
9. A condenser tube according to claim 1,
c h a r a c t e r i s e d i n t h a t
the relation between the inner diameter (ID) of the channel (12) and the flange width (FW), (ID) : (FW) is in the interval (3mm - 4,5mm) : (22,5mm - 55mm).
10. A method for heat transfer between a heat transfer medium and a medium, preferably a liquid, contained in a substantially cylindrical tank of steel or stainless steel (2), where a condenser tube profile (7) made of aluminium or an aluminium alloy conducts the heat transfer medium in one or more channels (12) and is further arranged at the outside of the tank,
c h a r a c t e r i s e d i n t h a t
the condenser tube profile (7) is provided with a substantial flat flange (11) at the periphery of the condenser tube profile (7) and where the sides of the flange are extending parallel to said condenser tube profile (7) in the longitudinal direction thereof, wherein the flange (11) of the condenser tube is attached in firm contact with the tank (2) and where the condenser tube is winded as the shape of a helix.
11. A method according to claim 10,
c h a r a c t e r i s e d i n t h a t
the condenser tube profile (7) is winded in a helix shape with a pitch where the one side of the flange abuts or substantially abuts the other.
12. An apparatus for heating domestic water, comprising a cylindrical tank (2) of steel or stainless steel for water to be heated, where a condenser tube profile (7) made of aluminium or an aluminium alloy is fixed onto the outer surface of the tank for heating the water by a hot medium flowing through one or more channel(s) (12) of said condenser tube profile (7),
c h a r a c t e r i s e d i n t h a t
the condenser tube profile (7) is provided with a substantial flat flange (11) at its periphery, the flange having side edges extending in parallel with said condenser tube profile, in the longitudinal direction thereof, wherein the condenser tube profile is winded in the shape of a helix onto the surface of the tank (2) and attached in firm contact with it.
13. An apparatus according to claim 12,
c h a r a c t e r i s e d i n t h a t
the condenser tube profile (7) is winded in a helix shape with a pitch where the one side of the flange abuts or substantially abuts the other.
NO20220143A 2022-01-28 2022-01-28 A condenser tube, a method and an apparatus for heat exchange NO20220143A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO20220143A NO20220143A1 (en) 2022-01-28 2022-01-28 A condenser tube, a method and an apparatus for heat exchange
CN202380010275.0A CN116897268A (en) 2022-01-28 2023-01-27 Condenser tube, method for heat transfer and device for heat exchange
PCT/EP2023/052025 WO2023144315A1 (en) 2022-01-28 2023-01-27 A condenser tube, a method for heat transfer and an apparatus for heat exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20220143A NO20220143A1 (en) 2022-01-28 2022-01-28 A condenser tube, a method and an apparatus for heat exchange

Publications (1)

Publication Number Publication Date
NO20220143A1 true NO20220143A1 (en) 2023-07-31

Family

ID=85132921

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20220143A NO20220143A1 (en) 2022-01-28 2022-01-28 A condenser tube, a method and an apparatus for heat exchange

Country Status (3)

Country Link
CN (1) CN116897268A (en)
NO (1) NO20220143A1 (en)
WO (1) WO2023144315A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2138525A (en) * 1936-06-29 1938-11-29 Universal Cooler Corp Evaporator
DE760126C (en) * 1940-10-12 1953-04-09 Siemens Schuckertwerke A G Evaporator for refrigeration machines
GB803759A (en) * 1955-11-24 1958-10-29 Gen Electric Co Ltd Improvements in or relating to refrigerator condensers
US3384167A (en) * 1967-04-03 1968-05-21 Javkin Simon Band for heat exchange
EP2372284A1 (en) * 2010-03-22 2011-10-05 Riello S.p.A. Condenser/Evaporator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR67097E (en) * 1954-05-07 1957-11-04 Tubular profile
GB768590A (en) * 1955-03-07 1957-02-20 Noeel Casimir Euillades Improvements in or relating to tubular sectional members and structures including such members especially in refrigerating systems
WO2009008698A2 (en) * 2007-07-12 2009-01-15 Fook Chong Chai Heat exchanger
CN107525311A (en) 2016-06-20 2017-12-29 苏州三星电子有限公司 A kind of refrigerator condenses pipe and refrigerator with high efficiency and heat radiation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2138525A (en) * 1936-06-29 1938-11-29 Universal Cooler Corp Evaporator
DE760126C (en) * 1940-10-12 1953-04-09 Siemens Schuckertwerke A G Evaporator for refrigeration machines
GB803759A (en) * 1955-11-24 1958-10-29 Gen Electric Co Ltd Improvements in or relating to refrigerator condensers
US3384167A (en) * 1967-04-03 1968-05-21 Javkin Simon Band for heat exchange
EP2372284A1 (en) * 2010-03-22 2011-10-05 Riello S.p.A. Condenser/Evaporator

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Publication number Publication date
CN116897268A (en) 2023-10-17
WO2023144315A1 (en) 2023-08-03

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