CA2535855A1 - High-efficiency enhanced boiler - Google Patents
High-efficiency enhanced boiler Download PDFInfo
- Publication number
- CA2535855A1 CA2535855A1 CA002535855A CA2535855A CA2535855A1 CA 2535855 A1 CA2535855 A1 CA 2535855A1 CA 002535855 A CA002535855 A CA 002535855A CA 2535855 A CA2535855 A CA 2535855A CA 2535855 A1 CA2535855 A1 CA 2535855A1
- Authority
- CA
- Canada
- Prior art keywords
- heat transfer
- transfer medium
- fluid
- conduit
- tube
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/021—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers with heating tubes in which flows a non-specified heating fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/101—Tubes having fins or ribs
-
- 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
-
- 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
- F28F1/124—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 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
- 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
- F28F1/34—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 obliquely
- F28F1/36—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 obliquely the means being helically wound fins or wire spirals
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
In devices known in the art, "conven-tional firetube" and "waste heat recovery" boilers each require many small tubes making successive passes within the boiler. In one embodiment of the invention, however, an enhanced conduit (60) replaces numerous conventional small tubes. In some embodiments, the enhanced conduit incorporates a plurality of fins (80), each of which extends through a wall of the conduit. In other embodiments, the enhanced conduit incorporates a plurality of tubes (494) along its outer surface, through which a heat transfer medium flows.
Both designs enhance the heat transfer relationship between the hot fluid and the heat transfer medium by providing a continuous heat transfer relationship with the heat transfer medium, increasing the surface area involved in the heat transfer relationship and enhancing convection/conduction couples. For some applications, all of the tube banks of other devices in the art can be replaced by one continuous enhanced conduit.
Both designs enhance the heat transfer relationship between the hot fluid and the heat transfer medium by providing a continuous heat transfer relationship with the heat transfer medium, increasing the surface area involved in the heat transfer relationship and enhancing convection/conduction couples. For some applications, all of the tube banks of other devices in the art can be replaced by one continuous enhanced conduit.
Claims (22)
1. A device for transferring heat from a fluid to a heat transfer medium comprising:
a vessel containing the heat transfer medium;
a conduit extending through a wall of the vessel, the conduit having a first surface in contact with the heat transfer medium and a second surface in contact with a fluid within the conduit; and a plurality of fins, each fin extending through a wall of the conduit, contacting the heat transfer medium and the fluid, wherein heat is transferred from the fluid to the heat transfer medium via the plurality of fins.
a vessel containing the heat transfer medium;
a conduit extending through a wall of the vessel, the conduit having a first surface in contact with the heat transfer medium and a second surface in contact with a fluid within the conduit; and a plurality of fins, each fin extending through a wall of the conduit, contacting the heat transfer medium and the fluid, wherein heat is transferred from the fluid to the heat transfer medium via the plurality of fins.
2. The device of claim 1, wherein the plurality of fins is oriented around and along a length of the first surface of the conduit.
3. The device of claim 1, wherein the fluid is selected from a group consisting of a gas, a liquid, a molten salt, and a molten metal.
4. The device of claim 1, wherein the fluid is the product of an exothermic reaction.
5. The device of claim 1, wherein the heat transfer medium is selected from a group consisting of a liquid and a gas.
6. The device of claim 5, wherein the heat transfer medium is water.
7. The device of claim 1, comprising a plurality of conduits.
8. The device of claim 1, further comprising a helical member residing around and along a length of the first surface of the conduit.
9. The device of claim 8, wherein the helical member directs the heat transfer medium along the first surface of the conduit.
10. The device of claim 8, wherein the location of the helical member is substantially parallel to a location of the plurality of fins.
11. The device of claim 1, wherein at least one of the plurality of fins is oriented at an angle relative to at least one axis of the conduit.
12. The device of claim 1, wherein at least one of the plurality of fins contains structures on its surface to increase turbulence in at least one of the fluid and the heat transfer medium.
13. The device of claim 12, wherein increased turbulence in at least one of the fluid and the heat transfer medium results in increased heat transfer between the fluid and the heat transfer medium.
14. A device for transferring heat from a fluid to a heat transfer medium comprising:
a vessel containing the heat transfer medium;
a conduit extending through a wall of the vessel, the conduit having a first surface in contact with the heat transfer medium and a second surface in contact with a fluid within the conduit; and at least one tube, wherein the heat transfer medium flows within the tube and the fluid flows around the tube.
a vessel containing the heat transfer medium;
a conduit extending through a wall of the vessel, the conduit having a first surface in contact with the heat transfer medium and a second surface in contact with a fluid within the conduit; and at least one tube, wherein the heat transfer medium flows within the tube and the fluid flows around the tube.
15. The device of claim 14, wherein the tube is located within the vessel.
16. The device of claim 14, further comprising at least one baffle for interrupting the flow of the fluid around the tube.
17. The device of claim 16, wherein interruption of the flow increases heat transfer between the fluid and the heat transfer medium.
18. A device for transferring heat from a fluid to a heat transfer medium comprising:
a vessel containing the heat transfer medium;
a first conduit extending through a wall of the vessel, the first conduit having a first surface in contact with the heat transfer medium and a second surface in contact with a fluid within the first conduit;
a plurality of fins, each fin extending through a wall of the first conduit, wherein heat is transferred from the fluid to the heat transfer medium via the plurality of fins;
and at least one tube, wherein the heat transfer medium flows within the tube and the fluid flows around the tube, and wherein heat is transferred from the fluid to the heat transfer medium via the tube.
a vessel containing the heat transfer medium;
a first conduit extending through a wall of the vessel, the first conduit having a first surface in contact with the heat transfer medium and a second surface in contact with a fluid within the first conduit;
a plurality of fins, each fin extending through a wall of the first conduit, wherein heat is transferred from the fluid to the heat transfer medium via the plurality of fins;
and at least one tube, wherein the heat transfer medium flows within the tube and the fluid flows around the tube, and wherein heat is transferred from the fluid to the heat transfer medium via the tube.
19. The device of claim 18, further comprising a helical member residing around and along a length of the first surface of the first conduit.
20. The device of claim 18, further comprising at least one baffle for interrupting the flow of the fluid around the tube.
21. A device for transferring heat from a fluid to a heat transfer medium comprising:
a vessel containing the fluid;
a conduit extending through a wall of the vessel, the conduit having a first surface in contact with the fluid and a second surface in contact with a heat transfer medium within the conduit; and a plurality of fins, each fin extending through a wall of the conduit, contacting the heat transfer medium and the fluid, wherein heat is transferred from the fluid to the heat transfer medium via the plurality of fins.
a vessel containing the fluid;
a conduit extending through a wall of the vessel, the conduit having a first surface in contact with the fluid and a second surface in contact with a heat transfer medium within the conduit; and a plurality of fins, each fin extending through a wall of the conduit, contacting the heat transfer medium and the fluid, wherein heat is transferred from the fluid to the heat transfer medium via the plurality of fins.
22. A device for transferring heat from a fluid to a heat transfer medium comprising:
a vessel containing the fluid;
a conduit extending through a wall of the vessel, the conduit having a first surface in contact with the fluid and a second surface in contact with a heat transfer medium within the conduit; and at least one tube, wherein the fluid flows within the tube and the heat transfer medium flows around the tube.
a vessel containing the fluid;
a conduit extending through a wall of the vessel, the conduit having a first surface in contact with the fluid and a second surface in contact with a heat transfer medium within the conduit; and at least one tube, wherein the fluid flows within the tube and the heat transfer medium flows around the tube.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49848603P | 2003-08-28 | 2003-08-28 | |
| US60/498,486 | 2003-08-28 | ||
| PCT/US2004/027812 WO2005021122A2 (en) | 2003-08-28 | 2004-08-27 | High-efficiency enhanced boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2535855A1 true CA2535855A1 (en) | 2005-03-10 |
| CA2535855C CA2535855C (en) | 2012-04-03 |
Family
ID=34272684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2535855A Expired - Fee Related CA2535855C (en) | 2003-08-28 | 2004-08-27 | High-efficiency enhanced boiler |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1658462B1 (en) |
| AT (1) | ATE528585T1 (en) |
| CA (1) | CA2535855C (en) |
| WO (1) | WO2005021122A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010005422A1 (en) | 2008-07-07 | 2010-01-14 | Okonski John E Jr | High-efficiency enhanced boiler |
| DE102020123751A1 (en) * | 2020-09-11 | 2022-03-17 | Maximilian Pügerl | heat exchanger |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7204070A (en) * | 1972-03-27 | 1973-10-01 | ||
| US3785350A (en) * | 1972-08-04 | 1974-01-15 | Cormick J Mc | Heat transfer apparatus |
| US3835816A (en) * | 1973-05-02 | 1974-09-17 | Combustion Eng | Heater |
| US3987761A (en) * | 1974-10-15 | 1976-10-26 | Downs Gordon L | Auxiliary heater for a gas-fired water heater |
| NL7606031A (en) * | 1975-06-09 | 1976-12-13 | Maurice Vidalenq | GAS HEATING DEVICE. |
| EP0957322B1 (en) * | 1998-05-14 | 2006-03-15 | Toyota Jidosha Kabushiki Kaisha | Catalytic combustion heater |
-
2004
- 2004-08-27 WO PCT/US2004/027812 patent/WO2005021122A2/en active Search and Examination
- 2004-08-27 CA CA2535855A patent/CA2535855C/en not_active Expired - Fee Related
- 2004-08-27 AT AT04782311T patent/ATE528585T1/en not_active IP Right Cessation
- 2004-08-27 EP EP04782311A patent/EP1658462B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2535855C (en) | 2012-04-03 |
| EP1658462B1 (en) | 2011-10-12 |
| EP1658462A2 (en) | 2006-05-24 |
| WO2005021122A3 (en) | 2005-06-09 |
| EP1658462A4 (en) | 2008-03-19 |
| ATE528585T1 (en) | 2011-10-15 |
| WO2005021122A2 (en) | 2005-03-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20180827 |