WO2001018471A1 - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- WO2001018471A1 WO2001018471A1 PCT/DE2000/003028 DE0003028W WO0118471A1 WO 2001018471 A1 WO2001018471 A1 WO 2001018471A1 DE 0003028 W DE0003028 W DE 0003028W WO 0118471 A1 WO0118471 A1 WO 0118471A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- hollow profiles
- exchanger according
- flue gas
- sheets
- Prior art date
Links
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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
Definitions
- the invention relates to a heat exchanger
- Heat exchangers are required for a wide variety of purposes, whereby heat is usually extracted from a stream of hot gas through a cooling circuit through which liquid flows.
- flue gas is generated in a burner chamber by burning a fuel, which is released to the outside via a heat exchanger.
- the heat exchanger is flowed through with a coolant, usually water, which is heated by the flow of flue gas and can be used for heating, for example, a building
- the geometry of the coolant guides must also take account of electrical engineering aspects in order to ensure both a problem-free cooling medium circulation and an efficient flow of flue gas It must be taken into account that when the flue gas cools, condensate is produced, which must be removed in a targeted manner. Furthermore, combustion residues in the flue gas should, if possible, not settle on the heat transfer surfaces or at least be easily removed.
- a solution to the problem according to the invention consists in a heat exchanger with a hot gas flow from hollow profiles around which coolant flows, which is characterized in that the hollow profiles consist of folded sheets.
- bent sheets are used as hollow profiles, which are welded together.
- Either closed profiles can be created simply by folding the sheets that are welded in the open area, or several sheets that are only partially folded can be welded.
- a sheet is preferably folded at least twice and welded to an un-folded sheet. This means that hollow profiles can be prefabricated, which are closed with standard sheet metal plates.
- the hollow profiles are provided with openings corresponding to one another.
- the openings have flanged edges, so that after welding the flanged edges between two hollow profiles, a cavity is created through which the coolant can be passed.
- beads can be arranged in the sheets of the profiles.
- a heat exchanger manufactured according to the invention can be provided with a flanged burner chamber which is preferably angled through 90 ° in order to ensure good access to the burner.
- Fig. 1 shows an exploded view of part of a heat exchanger according to the invention.
- Fig. 2 shows an exploded view of a complete heat exchanger according to the invention with partially assembled heat exchanger elements.
- Fig. 3 shows a fully assembled heat exchanger according to the invention in a perspective view.
- Fig. 1 In Fig. 1, four sheet metal plates 1a, 2a, 1b, 2b are shown which, when assembled, form hollow profiles which are used to guide the flue gas and water.
- the individual hollow profiles consist of flat sheets 1 and folded sheets 2.
- the uppermost flat sheet 1 a has circular openings 3 a as a flue gas passage.
- the edges of the openings 3a are provided with crimped edges 4 which are curved downwards.
- the sheet has downward-facing beads 5.
- the adjacent, folded sheet 2a has corresponding openings 3a and corresponding beads 5.
- the beads 5 are directed upwards.
- the opening 3 has flanged edges 4 which are curved upwards. This makes it possible to place the sheets on top of one another in such a way that an approximately 1 cm high cavity is formed between them.
- the sheets are then welded together in a water-tight and gas-tight manner along the flanged edges.
- the cavity created between the sheets serves to guide water.
- the flat sheet 1 b is also connected to the folded sheet 2 b. The cavity between these sheets also serves to guide water.
- the assembly of the sheets 1a and 2a and 1b and 2b is then assembled so that the downwardly bent sides 6 of the sheet 2a form a cavity between sheet 2a and 1b. This cavity is used to guide the flue gas.
- the flue gas duct is represented by the line R.
- the flue gas flows through the openings 3a into the cavity between the sheets 2a and 1b. There it is guided to the right in the drawing to the welded openings 3b of the sheets 1b and 2b and from there into the next cavity between sheet 2b and the subsequent sheet not shown in the drawing.
- the water flow is represented by the line W.
- the water flows through the cavity formed by the beads and flanged edges between the sheets 1b and 2b. There it is heated by the flue gas in the neighboring cavity.
- the heat exchanger is in the assembled state in a housing which is not shown in the drawings.
- Sheet 1b has a recess 7 which, together with the housing, forms a passage through which the water can flow past sheet 2a upwards into the cavity between sheets 1a and 2a. There it moves to the left in the drawing.
- the sheet 1a has beveled corners 8 at its left edge in the drawing. These corners 8, together with the housing (not shown), also form a passage through which the water can flow upwards into the next cavity.
- Fig. 2 shows an exploded view of a partially assembled, complete heat exchanger.
- the sheets welded together along the openings 3 are pre-assembled. Cavities are formed between these sheets, which serve to carry the water through.
- the cavities that form between the individual pre-assembled elements when they are completely assembled are used to pass the flue gas.
- a heat exchanger can be assembled in any size from several sets of flat and folded sheets 1a, 2a, 1b and 2b. Only the top one Sheet 2c, to which the burner chamber 9 is connected, differs in shape from the other sheets
- the entire heat exchanger is enclosed by a housing, not shown in the drawing, so that two separate guides for flue gas and water are formed. Flue gas is guided through the openings 3 into the cavity below. The water is routed through the recesses 7 and 8 next chamber
- Fig. 3 shows a fully assembled heat exchanger in perspective.
- the hot gas from the burner chamber 9 is guided through the uppermost plate 2c in the first cavity formed by the plates 2c and 1a. From this cavity it passes through openings not visible in the drawing in the ones below cavity
- the heat exchanger according to the invention can be manufactured in a simple manner, since only flat sheets have to be folded and provided with beads and punchings.
- the heat exchanger according to the invention can be easily adapted to the required size, both by the number of heat exchanger elements and by the external dimensions the sheets It is possible to create cost-effective individual solutions.
- the materials used are cheap.
- the processing is simple and inexpensive
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10082698T DE10082698D2 (en) | 1999-09-03 | 2000-09-04 | heat exchangers |
AU12671/01A AU1267101A (en) | 1999-09-03 | 2000-09-04 | Heat exchanger |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19942192.7 | 1999-09-03 | ||
DE19942192 | 1999-09-03 | ||
DE10024101.8 | 2000-05-18 | ||
DE10024101A DE10024101A1 (en) | 1999-09-03 | 2000-05-18 | Heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001018471A1 true WO2001018471A1 (en) | 2001-03-15 |
Family
ID=26005709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/003028 WO2001018471A1 (en) | 1999-09-03 | 2000-09-04 | Heat exchanger |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU1267101A (en) |
DE (1) | DE10082698D2 (en) |
WO (1) | WO2001018471A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1930815A1 (en) * | 1968-06-26 | 1970-04-16 | Air Preheater | Plate heat exchanger |
FR2315674A1 (en) * | 1975-06-27 | 1977-01-21 | Ferodo Sa | IMPROVEMENTS TO PLATE HEAT EXCHANGERS |
EP0186592A1 (en) * | 1984-12-21 | 1986-07-02 | BARRIQUAND, Société dite: | Plate heat exchanger |
EP0321667A1 (en) * | 1987-12-22 | 1989-06-28 | Hans Dr. Viessmann | Heater |
JPH01203892A (en) * | 1988-02-09 | 1989-08-16 | Mitsubishi Heavy Ind Ltd | Plate type heat exchanger |
WO1993022608A1 (en) * | 1992-05-05 | 1993-11-11 | Fernandez Jean Noel | Heat exchanger with welded plates |
WO1997002461A1 (en) * | 1995-06-30 | 1997-01-23 | Level Energietechniek B.V. | Heat exchanger with improved configuration |
-
2000
- 2000-09-04 WO PCT/DE2000/003028 patent/WO2001018471A1/en active Application Filing
- 2000-09-04 DE DE10082698T patent/DE10082698D2/en not_active Expired - Lifetime
- 2000-09-04 AU AU12671/01A patent/AU1267101A/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1930815A1 (en) * | 1968-06-26 | 1970-04-16 | Air Preheater | Plate heat exchanger |
FR2315674A1 (en) * | 1975-06-27 | 1977-01-21 | Ferodo Sa | IMPROVEMENTS TO PLATE HEAT EXCHANGERS |
EP0186592A1 (en) * | 1984-12-21 | 1986-07-02 | BARRIQUAND, Société dite: | Plate heat exchanger |
EP0321667A1 (en) * | 1987-12-22 | 1989-06-28 | Hans Dr. Viessmann | Heater |
JPH01203892A (en) * | 1988-02-09 | 1989-08-16 | Mitsubishi Heavy Ind Ltd | Plate type heat exchanger |
WO1993022608A1 (en) * | 1992-05-05 | 1993-11-11 | Fernandez Jean Noel | Heat exchanger with welded plates |
WO1997002461A1 (en) * | 1995-06-30 | 1997-01-23 | Level Energietechniek B.V. | Heat exchanger with improved configuration |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 013, no. 506 (M - 892) 14 November 1989 (1989-11-14) * |
Also Published As
Publication number | Publication date |
---|---|
AU1267101A (en) | 2001-04-10 |
DE10082698D2 (en) | 2002-01-24 |
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