WO1994001731A1 - Echangeur thermique a ailettes maillees et son procede de production - Google Patents
Echangeur thermique a ailettes maillees et son procede de production Download PDFInfo
- Publication number
- WO1994001731A1 WO1994001731A1 PCT/JP1993/000899 JP9300899W WO9401731A1 WO 1994001731 A1 WO1994001731 A1 WO 1994001731A1 JP 9300899 W JP9300899 W JP 9300899W WO 9401731 A1 WO9401731 A1 WO 9401731A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat transfer
- fins
- transfer tube
- mesh
- heat exchanger
- 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.)
- Ceased
Links
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
- F28F1/10—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
- F28F1/22—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 having portions engaging further tubular elements
-
- 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
- F28F1/122—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 being formed of wires
-
- 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
- F28F1/44—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 and being formed of wire mesh
-
- 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
-
- 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
- Y10T29/49377—Tube with heat transfer means
- Y10T29/49378—Finned tube
Definitions
- the present invention provides a mesh-type heat exchanger comprising a plurality of heat transfer tubes arranged in parallel, and a number of mesh-shaped fins arranged and joined to the heat transfer tubes in parallel with the tube axis.
- the present invention relates to the manufacturing method.
- a cross-fin coil type heat exchanger configured by arranging a number of plate-like fins so as to be orthogonal to a number of heat transfer tubes arranged in parallel has been widely used.
- various fins are processed (for example, cut and raised pieces of various shapes are formed on the fin surface). There is a limit to improvement.
- the mesh fin type heat exchanger includes a plurality of heat transfer tubes 1, 1... Arranged in parallel with each other, and the heat transfer tubes 1, 1. It is composed of a number of mesh-shaped fins 2, 2 ... arranged parallel to the axis and joined together, and a tube sheet 3 supporting the ends of the heat transfer tubes 1, 1, .... Usually, the heat transfer tube 1 and the mesh fins 2, 2,... Are sandwiched from both sides of the heat transfer tube 1 by the mesh fins 2, 2,.
- the present invention has been made in view of the above points, and has as its object to improve the workability of assembling a heat transfer tube and a mesh-shaped fin.
- the mesh fin type heat exchanger includes a plurality of heat transfer tubes arranged in parallel, and a plurality of mesh-shaped fins arranged in parallel with the tube axis and joined to the heat transfer tubes.
- each of the heat transfer tubes is constituted by a pair of tube components each having a half-cylindrical cylindrical shape and having a joint portion extending along an axis at an open end thereof. It is characterized in that the opposed joint portions of the members are joined from the outside of the fin so as to sandwich the fin.
- the mesh fin type heat exchanger according to claim 2 is characterized in that a part of each of the fins is disposed so as to pass through the heat transfer tube.
- a portion of each of the fins located in the heat transfer tube includes a portion sandwiched and joined by the joining portion, and a portion joined into the heat transfer tube from the joined portion.
- the heat transfer tube is characterized in that there is no fin at the center of the heat transfer tube.
- the part existing in the heat pipe is composed of a part sandwiched and joined by the above-mentioned joining part, and a heat transfer tube from the joined part.
- the heat transfer tube is characterized in that no fin exists between the outermost fins at the center of the heat transfer tube.
- the fin located in the middle among the fins sandwiched by the joints penetrates the inside of the heat transfer tube, and the fins on both sides of the fin located in the middle are connected to each other.
- the portion existing in the heat pipe is composed of a portion sandwiched and joined by the joining portion, and a portion projecting from the joined portion into the heat transfer tube in a predetermined size at the center of the heat transfer tube. It is characterized in that there are no fins on both sides of the middle fin.
- the heat exchanger according to claim 7 is characterized in that the joint is a joining flange.
- the heat exchanger includes a plurality of heat transfer tubes arranged in parallel, and a plurality of mesh-shaped fins arranged and joined to the heat transfer tubes in parallel with the tube axis.
- each of the heat transfer tubes is formed of a pair of tube components each having a half-cylindrical cylindrical shape and having joints at its open ends extending in a direction along the axis. Opposing joints of these tube components are joined from the outside so as to sandwich the fin.
- the heat transfer tube and the mesh-shaped 7-pin are assembled by an extremely simple process of joining the opposing joint portions of the pair of tube components from the outside of the multi-layer mesh-shaped fins. As a result, workability during the production of the heat exchanger is significantly improved.
- a fluid for example, a refrigerant flowing in the heat transfer tube comes into direct contact with a part of the fin, and the heat transfer performance is reduced. It can be improved.
- each fin comes into direct contact with the fluid flowing in the heat transfer tube, and the heat exchange performance is extremely high. Get better.
- the fin portion protruding in a divergent shape in the heat transfer tube directly exchanges heat with the fluid in the heat transfer tube. Further, the flared portion functions to prevent the mesh-shaped fins from coming off the joint. Furthermore, in the heat exchanger of claim 3, since there is no fin at the center of the heat transfer tube, the flow resistance in the heat transfer tube is reduced.
- the flow resistance is smaller than that in which all the fins pass through the heat transfer tube.
- the fins that protrude into the heat transfer tube in a divergent shape can directly exchange heat with the fluid in the heat transfer tube, increasing the heat exchange efficiency and preventing the fins from coming off the joint. .
- the flow hanger is smaller than that in which all the fins penetrate through the heat transfer tube.
- the fins that protrude into the heat transfer tube in a divergent manner can directly exchange heat with the fluid in the heat transfer tube, increasing the heat exchange efficiency and preventing the fin from coming off the joint.
- a plurality of mesh-shaped fins are laminated, and the fins have a half-cylindrical shape with respect to predetermined positions, and the open ends of the fins are provided on the shaft core.
- a part of the mesh-shaped fin is left in the heat transfer tube, so that a fluid (eg, a refrigerant) flowing in the heat transfer tube directly contacts a part of the fin. Therefore, the heat transfer performance can be improved.
- a fluid eg, a refrigerant
- FIG. 1 is a perspective view showing a main portion of a heat exchanger according to a first embodiment of the present invention is a cross-sectional view showing a main portion of a heat exchanger according to a first embodiment of the present invention
- FIG. 3 is a cross-sectional view illustrating a manufacturing procedure of the heat exchanger according to the first embodiment of the present invention.
- FIG. 4 is a cross-sectional view illustrating a main part of the heat exchanger according to the second embodiment of the present invention.
- FIG. 6 is a cross-sectional view illustrating a procedure for manufacturing the heat exchanger according to the second embodiment of the present invention.
- FIG. 6 is a cross-sectional view illustrating a main part of a heat exchanger according to the third embodiment of the present invention.
- C FIG. 7 is a cross-sectional view illustrating a manufacturing procedure of the heat exchanger according to the third embodiment of the present invention. 0
- FIG. 8 is a cross-sectional view showing a main part of the heat exchanger according to the fourth embodiment of the present invention.
- C FIG. 9 is a cross-sectional view showing a manufacturing procedure of the heat exchanger according to the fourth embodiment of the present invention. .
- FIG. 10 is a front view showing a conventionally known mesh fin type heat exchanger. is there.
- FIG. 11 is a cross-sectional view of a main part of a conventionally known mesh fin type heat exchanger.
- the heat exchanger according to the following embodiment includes a plurality of heat transfer tubes 1, 1... Arranged in parallel with each other, similarly to the mesh fin type heat exchanger described in the section of the background art. ... Are provided with a large number of mesh-shaped fins 2, 2, ... arranged parallel to the pipe axis (see Figs. 10 and 11). Note that, in the present invention, the heat transfer tubes 1, 1, ... need only be parallel to each other, and may be arranged in a staggered and parallel manner with respect to one surface. In this case, the mesh fins bend in a waveform.
- each heat transfer tube 1 has a half-cylindrical shape, and has an open end as a joint extending along the axis. It is constituted by a pair of pipe components 4 and 4 having joining flanges 4a and 4b, respectively.
- Reference numeral 5 denotes an in-tube fin formed by leaving a part of the mesh fins 2, 2-... In the heat transfer tube 1.
- the heat exchanger having such a configuration is manufactured as follows. As shown in FIG. 3, a large number of mesh fins 2, 2,... Are stacked, and a pair of pipe components 4, 4 are marked from the outside by arrows at predetermined positions of these mesh fins 2, 2,. After pressing and contacting as shown by P, the heat transfer tubes 1 are formed by joining the opposing joining flanges 4a, 4a and 4b, 4b. As the joining means at this time, for example, laser welding or ultrasonic joining is suitable. If it is necessary to keep the interval between the mesh-like fins 2, 2,... When pressing the pipe constituent members 4, 4 against the mesh-like fins 2, 2,. ... An interval maintaining means (for example, spacer) for maintaining an interval between them may be used. After manufacture of the heat exchanger, the spacing means is removed. Reference numeral 6 in FIG. 1 indicates a laser welding or ultrasonic welding portion.
- the heat transfer tubes 1, 1 ... and the mesh fins 2, 2 ... can be assembled by an extremely simple process of press-welding from the outside, workability in manufacturing the heat exchanger is remarkably improved. Also, some of the mesh fins 2, 2 ... are left inside the heat transfer tubes 1, 1- to form the tube fins 5, 5 ..., so that the heat transfer tubes 1, 1 ... flow through the heat transfer tubes 1, 1 ...
- the fluid for example, refrigerant
- the portions of the mesh fins 2, 2... Located in the heat transfer tube 1 are opposed joining flanges 4a, 4a and 4 of the tube components 4, 4.
- the b and 4b are cut away except for the portions to be pressed and the portions 5 slightly protruding into the heat transfer tube 1 in a divergent shape from them.
- the in-tube fin is constituted by a small portion 5 which protrudes from the joint portion into the heat transfer tube 1 in a divergent state. Therefore, the flow resistance of the fluid (for example, the refrigerant) flowing through the heat transfer tube 1 can be greatly reduced, and an action of preventing the mesh fins 2, 2,...
- Other configurations and operational effects are examples.
- FIG. 6 and 7 show a main part of a heat exchanger according to a third embodiment of the present invention. This embodiment corresponds to the inventions of claims 1, 4 and 6.
- portions of the mesh fins 2, 2,... Located in the heat transfer tube 1 are cut away except for the mesh fins 2, 2, which are located on the outermost side. That is, the outermost mesh fins 2, 2 are left as they are, and the other mesh fins 2, 2... Are opposed to the joining flanges 4 a, 4 a and 4 b, 4 b of the tube components 4, 4.
- the portion inside the heat transfer tube 1 is cut away except for the portion where b is pressed and the portion 5 that protrudes from them.
- the flow resistance of the fluid (for example, refrigerant) flowing in the heat transfer tube 1 can be significantly reduced.
- Other configurations and operational effects are the same as those of the first and second embodiments.
- FIG. 8 and 9 show a main part of a heat exchanger according to a fourth embodiment of the present invention. This embodiment corresponds to the inventions of claims 1, 5, and 6.
- the portion of the mesh fins 2, 2,... Located in the heat transfer tube 1 is the phase of the tube constituting members 4, 4, except for the mesh fin 2 located in the middle.
- the facing joining flanges 4a, 4a and 4b, 4b are cut away except for the parts to be pressed and the parts 5 slightly protruding from them.
- the flow resistance of the fluid (for example, refrigerant) flowing through the heat transfer tube 1 can be significantly reduced.
- Other configurations and operational effects are the same as those of the first and second embodiments.
- the joining flange is used as the joining portion.
- a joining brazing portion or the like may be used.
- the mesh fin type heat exchanger of the present invention is used for an air conditioner, a refrigerator, and the like.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE69311510T DE69311510T2 (de) | 1992-07-03 | 1993-06-30 | Wärmetauscher mit maschigen kühlrippen sowie verfahren zu dessen herstellung |
| US08/204,198 US5396949A (en) | 1992-07-03 | 1993-06-30 | Mesh fin type heat exchanger and method of making the same |
| EP93914936A EP0601209B1 (en) | 1992-07-03 | 1993-06-30 | Mesh-fin heat exchanger and method for manufacturing the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4/177030 | 1992-07-03 | ||
| JP4177030A JPH0618186A (ja) | 1992-07-03 | 1992-07-03 | 熱交換器およびその製造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1994001731A1 true WO1994001731A1 (fr) | 1994-01-20 |
Family
ID=16023923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1993/000899 Ceased WO1994001731A1 (fr) | 1992-07-03 | 1993-06-30 | Echangeur thermique a ailettes maillees et son procede de production |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5396949A (ja) |
| EP (1) | EP0601209B1 (ja) |
| JP (1) | JPH0618186A (ja) |
| DE (1) | DE69311510T2 (ja) |
| WO (1) | WO1994001731A1 (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2009121782A (ru) * | 2006-11-09 | 2010-12-20 | Либхерр-Хаузгерэте Оксенхаузен Гмбх (De) | Холодильное и/или морозильное устройство |
| US8506242B2 (en) | 2010-05-04 | 2013-08-13 | Brayton Energy Canada, Inc. | Method of making a heat exchange component using wire mesh screens |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5523898A (en) * | 1978-08-03 | 1980-02-20 | Ostbo John D B | Heat exchanger |
| JPS61192185U (ja) * | 1985-05-21 | 1986-11-29 | ||
| JPS6349190U (ja) * | 1986-09-18 | 1988-04-02 | ||
| JPS63189794A (ja) * | 1987-02-03 | 1988-08-05 | Matsushita Refrig Co | 熱交換器 |
| JPS6347742Y2 (ja) * | 1983-12-30 | 1988-12-08 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA643979A (en) * | 1962-07-03 | Bundy Tubing Company | Heat transferring tube structure | |
| DE276815C (ja) * | ||||
| US2112743A (en) * | 1933-08-15 | 1938-03-29 | Gen Electric | Heat transmitting element |
| US2107031A (en) * | 1936-04-29 | 1938-02-01 | Gordon M Evans | Heat transferring tube structure |
| GB619307A (en) * | 1946-12-02 | 1949-03-08 | Heat Exchangers Ltd | Improvements relating to tubes for effecting the exchange of heat between fluids |
| CH398657A (de) * | 1962-05-11 | 1966-03-15 | Sulzer Ag | Rohr für Wärmeübertrager |
| US3409075A (en) * | 1965-08-20 | 1968-11-05 | Union Carbide Corp | Matrix heat exchange cores |
| NL6514628A (ja) * | 1965-11-11 | 1967-05-12 | ||
| US3460613A (en) * | 1967-04-21 | 1969-08-12 | Peerless Of America | Heat exchangers |
| DE1551472A1 (de) * | 1967-04-28 | 1970-08-20 | Emil Langeheine | Waermeaustauscher mit ring- oder spiralfoermig gebogenen Rohrelementen |
| US4071935A (en) * | 1975-08-07 | 1978-02-07 | Stainless Equipment Company | Method of making heat exchanger |
| JPS52108546A (en) * | 1976-03-08 | 1977-09-12 | Toyo Rajieetaa Kk | Heat exchanger and method of producing same |
| FR2668250B1 (fr) * | 1990-10-22 | 1997-01-10 | Inst Francais Du Petrole | Echangeur de chaleur a tubes relies par des plaques de metal deploye. |
-
1992
- 1992-07-03 JP JP4177030A patent/JPH0618186A/ja active Pending
-
1993
- 1993-06-30 US US08/204,198 patent/US5396949A/en not_active Expired - Fee Related
- 1993-06-30 DE DE69311510T patent/DE69311510T2/de not_active Expired - Fee Related
- 1993-06-30 EP EP93914936A patent/EP0601209B1/en not_active Expired - Lifetime
- 1993-06-30 WO PCT/JP1993/000899 patent/WO1994001731A1/ja not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5523898A (en) * | 1978-08-03 | 1980-02-20 | Ostbo John D B | Heat exchanger |
| JPS6347742Y2 (ja) * | 1983-12-30 | 1988-12-08 | ||
| JPS61192185U (ja) * | 1985-05-21 | 1986-11-29 | ||
| JPS6349190U (ja) * | 1986-09-18 | 1988-04-02 | ||
| JPS63189794A (ja) * | 1987-02-03 | 1988-08-05 | Matsushita Refrig Co | 熱交換器 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0601209A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69311510T2 (de) | 1997-11-06 |
| EP0601209B1 (en) | 1997-06-11 |
| EP0601209A1 (en) | 1994-06-15 |
| DE69311510D1 (de) | 1997-07-17 |
| JPH0618186A (ja) | 1994-01-25 |
| US5396949A (en) | 1995-03-14 |
| EP0601209A4 (en) | 1994-11-30 |
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