EP2201306A1 - Metallic porous body incorporated by casting into a heat exchanger - Google Patents
Metallic porous body incorporated by casting into a heat exchangerInfo
- Publication number
- EP2201306A1 EP2201306A1 EP08805143A EP08805143A EP2201306A1 EP 2201306 A1 EP2201306 A1 EP 2201306A1 EP 08805143 A EP08805143 A EP 08805143A EP 08805143 A EP08805143 A EP 08805143A EP 2201306 A1 EP2201306 A1 EP 2201306A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- porous body
- metallic
- sand
- exchanger element
- 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- Withdrawn
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
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
- F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0063—Casting in, on, or around objects which form part of the product finned exchangers
-
- 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
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/38—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
-
- 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
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/001—Guiding means
- F24H9/0026—Guiding means in combustion gas 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
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/003—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by using permeable mass, perforated or porous materials
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/022—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being wires or pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with 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
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
-
- 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
- Y10T29/4935—Heat exchanger or boiler making
Definitions
- the present invention relates to a co-cast heat exchanger element intended for a central heating boiler, which heat exchanger element is made from substantially aluminum, the heat exchanger element being provided with walls which enclose a water carrying channel, and with at least one wall which encloses at least one flue gas draft to which a burner can be connected, at least one wall which encloses the at least one flue gas draft being water-cooled in that it also forms a boundary of the water- carrying channel, while at least one of the water-cooled walls is provided with heat exchanging surface enlarging pins and/or fins which extend in the respective flue gas draft and is also provided with other heat exchange surface enlarging metallic porous structures.
- the present invention also relates to a method for obtaining such a co-cast heat exchanger element and its use in a central heating boiler.
- a heat exchanger according to above described heat exchanger is known from EP 1722172, wherein the cross-sectional surface of the pins and/or fins is smaller than 25 mm 2 ; the heat exchanger being a mono-casting.
- Such heat exchanger with pins with a length of e.g. 15 mm and having a greater surface-content ratio, has a low weight. This results optimally in a thermal inertia of 0,16 kg/kW, which makes the heat exchanger element heating up much more rapidly, thereby reducing the time required for obtaining hot water for domestic use.
- Such heat exchanger due to the smaller length of the pins and/or fins, has a smaller cross-section of the flue gas draft. This leads to a higher flow velocity of the flue gases and results in a higher heat transfer coefficient and thus a better efficiency.
- WO 02/093644 describes a heat exchanger consisting of open-pore metallic foam as an example of a porous structure, wherein the metallic foam is cast together with structural elements (e.g. water channels) in one single step.
- structural elements e.g. water channels
- An aspect of the claimed invention provides a heat exchanger element intended for a central heating boiler having a higher output than the known central heating boilers with comparable dimensions, the intended heat exchanger element being particularly compact and having low weight.
- the heat exchanger element according to the invention is manufactured as a co-casting product from substantially aluminium, the heat exchanger comprising the features of claim 1.
- the heat exchanger element has a very flat design, wherein the flue gas draft is wide but not deep (as can be seen in fig. 1A), which is possible due to the use of shorter and smaller pins and/or fins as heat exchange surface enlarging structures, compared to the ones used in conventional heat exchanger elements for boilers.
- the use of these pins and/or fins, with their great surface-content ratio and heat exchanging action, makes it possible to cool down the flue gas and to transfer the heat efficiently to the water-cooled walls.
- the cooling of the long walls in the heat exchanger element is established by a parallel path in a one-piece water channel.
- This one-piece water channel core renders the manufacture of the core and the positioning of the core in a sand-casting mold relatively simple, so that the manufacture of the heat exchanger element is relatively simple as well and, accordingly, can take place in an economically favourable manner.
- the water-channel core can be built of different pieces put together to form the water-channel core.
- the incorporation of the metallic porous body into the heat exchanger element is a relatively simple method: this porous body is incorporated in the internal sand core of the heat exchanger.
- the porous body is built in into the (polystyrene) positive model in a lost foam casting process.
- porous metallic body was not affected by the hot molten metal, cast onto the porous metallic body and that a good metallic bond was obtained between the porous metallic body and the cast heat exchanger element. And also that the aluminium-oxides present at the surface of the porous aluminium material did not inhibit a good connection between the porous material and the heat exchanger element.
- the struts or ligaments of the metallic porous body stay intact into the complete co-cast structure and are properly surrounded by the melt (see fig.
- a central heating boiler can be made having a greater output than the known central heating boilers with comparable dimensions, while the same or even a better degree of compactness and thermal inertia is achieved.
- the heat exchanger element is manufactured as a co-casting, comprising the steps of claim 5, 6 or 7, and can be manufactured in a relatively quick and efficient manner.
- each flue gas draft of the heat exchanger may comprise two opposite walls having pins with a cross sectional surface which is smaller than 25 mm 2 .
- Another aspect of the invention relates to a central heating boiler comprising at least one heat exchanger element according to the invention.
- the heat exchanger element is made from substantially aluminium meaning that the heat exchanger element can be made out of pure aluminium or an aluminium alloy. Wherever in this description is referred to metal, aluminium or one of its alloys is referred to. It should be noted that the terms metal, aluminium and aluminium-alloy will be used throughout this text without meaning anything else than aluminium or one of it's alloys.
- metallic porous material or body differs from pins and fins in that these metallic porous materials/bodies represent a continuous and complex 3-D structure such as e.g. metallic open cell foam, metallic spacer material, folded knitted or woven metal wire structures or knitted wire mesh. Another distinction between the pins and fins and the metallic porous materials lies in the porosity of these structures.
- a metallic porous material as used in this text has a porosity of 70% or more.
- co-casting is explained in claim 5, and can be described in short as a two step casting method, wherein the first casting was performed in the production of the porous metallic body, see e.g. WO 01/14086 or EP1733822; the second or co-casting step being described in this patent application.
- Co-casting in the light of this patent application, is also to be understood as casting onto a porous metallic object, thereby obtaining the good metallic bond.
- FIG. 1 is a perspective view of an exemplary embodiment of a heat exchanger according to the invention.
- Fig. 2 is a sectional view taken on the plane M-M' of Fig. 1.
- Fig. 3 is a sectional view taken on the plane IM-IM' of Fig. 1.
- Fig. 4 is a perspective view of an alternative exemplary embodiment of a heat exchanger according to the invention.
- Fig. 5 is a sectional view taken on the plane V-V of Fig. 4.
- Fig. 6 is a sectional view taken on the plane Vl-Vl' of Fig. 4.
- Fig. 7 is a perspective view of the principle of the parallel water channels of the heat exchanger according to the invention.
- Fig. 8 is an optical microscopy picture of a strut of an open eel aluminium foam made of aluminium alloy AISi7 embedded in the co-cast material of the heat exchanger element made of aluminium alloy AISiIO.
- Fig. 9 is a perspective view of an alternative embodiment of the present invention.
- Fig. 10 is a sectional view taken on the plane X-X' of Fig. 9.
- Fig. 11 is a sectional view taken on the plane Xl-Xl' of Fig. 9.
- Fig. 12 shows a perspective view of the water channel used in Fig. 9. Reference numbers list
- FIGS 1 , 2 and 3 show an exemplary embodiment of the heat exchanger 1 according to the invention.
- Heat exchanger 1 is manufactured as a co- casting substantially from aluminium.
- the heat exchanger comprises a number of walls 2, which walls enclose on one side a water carrying channel 3 and on the other side a flue gas draft 7.
- the flue gas draft 7 extends from the burner space 6.
- the burner space 6 is intended for accommodating a burner.
- the burner is a metal fiber burner membrane, as described in WO 2004/092647.
- the walls 2 enclosing the flue gas draft 7 on the long walls 13 of the heat exchanging element are water cooled by the water carrying channel 3.
- the water carrying channel 3 is of such design that it forms two parallel water channels, one on each long wall 13 with respect to the burner space 6 and flue gas draft 7, as shown in Fig. 7.
- the water-carrying channel 3 is, preferably, of such design that it is formed with a core 4, as shown in Fig. 7.
- the flue gas draft comprises two opposite walls 2 (i.e. long walls 13) having in the upper part A fins 8 extending substantially perpendicular thereto, which fins enlarge the heat exchanging surface and extend into the flue gas draft 7.
- Part B of the long walls 13 comprise pins 9, also extending substantially perpendicular to the wall 13 and enlarging the heat exchanging surface.
- the pins have a cross-sectional surface which is smaller than 25 mm 2 and a length of approx. 15 mm.
- Part C of the long walls 13 comprises a metallic porous structure for enlarging the heat exchanging surface; but also for extracting more energy out of the flue gases by the turbulence enhancing 3D-architecture of the metallic porous body.
- the use of such a porous metallic body is most effective in the lower temperature ranges of the flue gases and accordingly in a heat exchanger element of this type in the lower regions of the heat exchanger element.
- the flow speed of the flue gases gets lower and lower and the temperature difference with the cooling water (i.e. the water to be heated) is also very small, making the heat exchange dependant on the heat exchange surface enlarging structure or body.
- the metallic porous material is an open cell aluminium foam, e.g. as described in WO 01/14086.
- an open cell aluminium foam completely filled flue gas draft
- This better heat transfer can be translated in a reduction of the heat exchanger surface, and also the weight of the heat exchanger element, by 20% and result in a more compact heat exchanger element 1 or, in other words, gives possibilities to miniaturise the heat exchanger element.
- the metallic porous material is a metallic spacer material, e.g. as described in EP1733822.
- the flow system of the water carrying channel in figure 7 can be considered to be a parallel connection.
- Water coming from a central heating pipe system enters the heat exchanger adjacent its bottom side at the location of arrow 11. From here, the water enters the feed-in part 3a of the water carrying channel.
- the channel 3a divides into two separate channel parts 3b and 3c. The water divides in these two channels 3b and 3c after which the water flows into the common channel 3d, thereafter the water leaves the heat exchanger via outlet 12.
- the water-carrying channel 3 it is effected that only the long walls 13 of the flue gas draft 7 and the burner space 6 are water-cooled.
- both parallel channels of the water carrying channel are provided with surface enlarging pins on their inner side, for further enhancing the heat transfer from the metal of the heat exchanger element to the water to be heated.
- the heat exchanger element 1 is preferably manufactured by means of a casting process, such as, for instance, sand casting or die-casting. Preferably, use is then made of at least one core to form the water channel and at least one second core for forming the flue gas channel(s). These flue gas draft cores comprising the metallic porous structures. Alternatively, also a lost foam casting process can be used.
- the metallic porous body sand core is than build in into the (polystyrene) foam positive model.
- the metallic porous body in lost foam casting, can be build in into the (polystyrene) foam positive model, The metallic porous body will than be filled with the sand used for the lost foam casting, and no separate step for making a sand core is necessary.
- the heat exchanger 1 of figures 1 and 4 are produced by the sand co- casting process. First a piece of an aluminium porous body is put in a core box. A mixture of sand and binder is then blown into the void space in the core box, thereby obtaining a hybrid body of metallic porous body filled with the sand-binder mix. The sand-binder mix is hardened thereby obtaining a metallic porous body - sand core. Thereafter the core box is removed. The metallic porous body - sand core is then integrated into a flue gas draft sand core, which is placed in a moulding box together with the water channel core 4. The molten metal is poured into the moulding and after the necessary cooling down, the sand core is removed. This results in the heat exchanger element 1 as depicted in Figures 1 or 4.
- the heat exchanger element 1 is made via a lost foam co-casting method.
- the production of a metallic porous body containing heat exchanger element comprises following steps. First, a metallic porous body-sand core, obtained as in paragraph 30, is build in into a polystyrene pattern (or positive) of the heat exchanger element and further prepared as known in the art. The "polystyrene pattern - metallic porous body-sand core" hybrid cluster is placed into the casting flask and backed-up with un-bonded sand. After the mold compaction, the polystyrene pattern is poured with the molten metal.
- the metallic porous body-sand core needs to be removed.
- the metallic porous body is built into the polystyrene pattern of the heat exchanger element. Then also the metallic porous body will be backed up with unbonded sand, which will be easily removed after co- casting of the heat exchanger element
- Part A of the heat exchanger element in figures 1 and 4, is designed in a tulip form for obtaining low NOx and low CO emissions. This is mainly obtained by the specific form of the flue gas draft part A and the long fins 8 removing already a lot of the heat from the flue gases. This tulip form seems particularly useful when using a burner of the type as described in WO 2004/092647.
- the tulip-like form can be described as follows: the burner chamber is bound by the metallic burner 6, thereafter the flue gas draft 7 widens and thereafter narrows.
- This specific form is especially designed to follow the flame pattern and it bends the flames equally without abrupt altering of the flame. This creates enough space for a proper combustion, thereby reaching low emissions of NOx and CO and thereby also attaining a very compact design.
- FIG 4 shows an alternative embodiment of the invention. Same reference numbers describe same structures as in figure 1.
- the embodiment of figure 4 is similar to the embodiment in figure 1 , so only the differences will be explained.
- FIG 5 from the third level on (going in the direction of flow of the water to be heated) in the water carrying channel 3, heat exchange surface enlarging ribs are provided.
- FIG 6 Another difference of the embodiment of figure 4 can be found in figure 6: here the C-part of the flue gas draft is, next to the metallic porous structure, also containing pins as in part B of the flue gas draft.
- This modification is an alternative way of integrating a metallic porous body into the heat exchanger element 1 , but also other configurations are possible as is evident for the person skilled in the art.
- a first worked example embodiment as in figure 4 gives a heat exchanger element with an output of approximately 35 kW.
- the weight of the heat exchanger element per kW to provide, is less than 0,20 kg/kW.
- the thermal inertia is only 0,17 kg/kW with a compactness of 5,5 kW/l, resulting in a heat exchanger element of 6,0 kg and a volume of 6,41.
- the water carrying channel has a volume of 1 ,3 litre.
- the specific load of the burner chamber (i.e. the tulip form of part A) of the flue gas draft is 23 kW/l.
- FIG. 4 An alternative worked example embodiment as in figure 4, gives a heat exchanger element with an output of approximately 25 kW.
- the thermal inertia is also only 0,17 kg/kW with a compactness of 5,5 kW/l, resulting in a heat exchanger element of 4,3 kg and a volume of 4,61.
- Figure 8 is an optical microscopy picture of a strut of an open eel aluminium foam 15 made of aluminium alloy AISi7 embedded in the co- cast material 16 of the heat exchanger element made of aluminium alloy AISiIO. This body was sand-cast by the method as described above. It clearly shows that the strut's integrity was not altered by the hot melt of aluminium alloy that was cast onto this strut. This type of metallic connection gives heat transfer data which are comparable or better to heat transfer data obtained with a sinter bonding method.
- Figure 9 is an alternative example embodiment of the present invention. It shows a heat exchanger element comprising four flue gas drafts 7, which are water cooled by the water-carrying channel 30. Again, one can identify three distinctive parts in the flue gas draft. Part A comprising the large fins, part B comprising the pins and part C comprising an aluminium porous structure.
- the flow system of the water carrying channel in figure 12 is also considered to be a parallel connection. Water conning from a central heating pipe system enters the heat exchanger adjacent its bottom side at the location of arrow 110. From here, the water enters the feed-in part 30a of the water carrying channel.
- the channel 30a divides into five separate channel parts 30b, 30c, 3Oe, 3Of and 3Og.
- the water divides in these channels, after which the water flows into the common channel 3Od, thereafter the water leaves the heat exchanger via outlet 120.
- the water-carrying channel 30 it is effected that only the long walls 13 of the flue gas drafts 7 are water-cooled. Because of the dimensioning of the heat exchanger element 10 resulting in a very flat heat exchanger element, and the heat exchanger element being cooled in a very efficient manner, it does not need cooling on the short walls 14 of the heat exchanger element and makes the heat exchanger element very compact.
- the optimal heat transfer to the water to be heated makes that the heat exchanger element nowhere becomes overheated, thus an optimal efficiency is obtained and all parts of the heat exchanger remain sufficiently cooled.
- the parallel channels of the water carrying channel are provided with surface enlarging pins on their inner side, for further enhancing the heat transfer from the metal of the heat exchanger element to the water to be heated.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08805143A EP2201306A1 (en) | 2007-10-25 | 2008-10-08 | Metallic porous body incorporated by casting into a heat exchanger |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07119275 | 2007-10-25 | ||
EP08805143A EP2201306A1 (en) | 2007-10-25 | 2008-10-08 | Metallic porous body incorporated by casting into a heat exchanger |
PCT/EP2008/063465 WO2009053248A1 (en) | 2007-10-25 | 2008-10-08 | Metallic porous body incorporated by casting into a heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2201306A1 true EP2201306A1 (en) | 2010-06-30 |
Family
ID=39156118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08805143A Withdrawn EP2201306A1 (en) | 2007-10-25 | 2008-10-08 | Metallic porous body incorporated by casting into a heat exchanger |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100242863A1 (en) |
EP (1) | EP2201306A1 (en) |
KR (1) | KR20100089062A (en) |
CN (1) | CN101836051B (en) |
WO (1) | WO2009053248A1 (en) |
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EP2476986B1 (en) * | 2011-01-17 | 2017-04-19 | UNICAL AG S.p.A. | Heat exchanger with highly flexible use |
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WO2014092655A1 (en) * | 2012-12-10 | 2014-06-19 | Sieva, Podjetje Za Razvoj In Trženje V Avtomobilski Industriji, D.O.O. | Advanced heat exchanger with integrated coolant fluid flow deflector |
NL2010442C2 (en) * | 2013-03-12 | 2014-09-16 | Dejatech Ges B V | Heat exchanger and body therefore, and a method for forming a heat exchanger body. |
CN104117629A (en) * | 2013-04-23 | 2014-10-29 | 重庆双腾机械制造有限公司 | Curve type oil-passage hole gear shell EPC (expandable pattern casting) mold |
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CN104792193B (en) * | 2015-04-30 | 2016-07-06 | 樊付辉 | A kind of platypelloid type condensed heat exchanger |
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CN108779937A (en) * | 2016-03-09 | 2018-11-09 | 贝卡尔特燃烧技术股份有限公司 | Segmented heat exchanger for being used in hot cell |
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CN109556439B (en) * | 2019-01-10 | 2020-08-11 | 合肥职业技术学院 | Energy-saving and environment-friendly waste heat recovery equipment |
CN109883051B (en) * | 2019-03-21 | 2023-08-18 | 西安交通大学 | Modularized commercial fuel gas heating extrusion aluminum alloy radiation hearth |
CN111906264B (en) * | 2020-08-31 | 2021-06-29 | 燕山大学 | Copper plate of foam copper cooling water tank continuous casting crystallizer and preparation method thereof |
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ATE441939T1 (en) * | 2001-05-14 | 2009-09-15 | Pore M Gmbh | HEAT EXCHANGER |
EP1553379B8 (en) * | 2004-01-08 | 2016-09-14 | SPX Dry Cooling Belgium sprl | Heat exchanger for industrial equipment |
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WO2007142527A2 (en) * | 2006-06-08 | 2007-12-13 | Nv Bekaert Sa | Heat exchanger and heating apparatus provided therewith |
CN1916550A (en) * | 2006-09-05 | 2007-02-21 | 西安交通大学 | Tube type heat exchanger |
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2008
- 2008-10-08 US US12/680,009 patent/US20100242863A1/en not_active Abandoned
- 2008-10-08 CN CN200880112655.0A patent/CN101836051B/en not_active Expired - Fee Related
- 2008-10-08 KR KR1020107008911A patent/KR20100089062A/en not_active Application Discontinuation
- 2008-10-08 WO PCT/EP2008/063465 patent/WO2009053248A1/en active Application Filing
- 2008-10-08 EP EP08805143A patent/EP2201306A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
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See references of WO2009053248A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR20100089062A (en) | 2010-08-11 |
CN101836051A (en) | 2010-09-15 |
US20100242863A1 (en) | 2010-09-30 |
WO2009053248A1 (en) | 2009-04-30 |
CN101836051B (en) | 2013-07-31 |
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