WO1995019531A1 - Wärmeübertrager - Google Patents
Wärmeübertrager Download PDFInfo
- Publication number
- WO1995019531A1 WO1995019531A1 PCT/EP1995/000107 EP9500107W WO9519531A1 WO 1995019531 A1 WO1995019531 A1 WO 1995019531A1 EP 9500107 W EP9500107 W EP 9500107W WO 9519531 A1 WO9519531 A1 WO 9519531A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- base body
- heat
- channels
- exchanger according
- Prior art date
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
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/053—Component parts or details
- F02G1/057—Regenerators
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
-
- 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
- F28D7/10—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 arranged one within the other, e.g. concentrically
- F28D7/106—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 arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
-
- 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
Definitions
- the invention relates to a heat exchanger, in particular for heating and cooling machines operating according to a regenerative gas cycle process, with separation of the media participating in the heat transfer.
- Heating and cooling machines operating according to the Stirling or Vuilieumier cycle have been known for a long time, for example from GB-PS 1 36 1 95.
- they have not been used in practice, mainly because of constructional difficulties that have hitherto prevented the theoretical advantages of such machines from being realized in practice.
- the invention is based on the object of creating a heat exchanger which is particularly suitable for heating and cooling machines which operate according to a regenerative gas cycle process and which has a high degree of efficiency and a small structural volume, but which is also intended to be suitable for other purposes.
- the heat exchanger has a base body which is provided on one surface with at least one groove extending from the inlet to the outlet, which is covered by a cover as a flow channel for the heat-absorbing, preferably liquid heat transfer medium is sealed, and which is provided on its other surface with a plurality of channels and / or pores for the heat-emitting medium, preferably formed by a process gas.
- the design according to the invention results in a heat exchanger which can be produced with a small construction volume and which, despite its small construction volume, enables economical production and has a high degree of efficiency.
- the base body is provided with a plurality of depressions for the heat-emitting medium which serve as channels. Such depressions also enlarge the surface of the heat exchanger that participates in the heat transfer.
- the base body can be provided with a layer of porous material.
- the heat-emitting medium in particular a process gas, flows through the pores of this layer, which is preferably made of a good heat-conducting material.
- the layer can either be applied to the base body or produced as a separate component that is connected to the base body.
- the channels for the heat-emitting medium can be formed by a body made of smooth, deformed and / or perforated metal sheets or by a wire mesh, wire mesh or wire tangle, this body being force or is arranged cohesively.
- a body made of smooth, deformed and / or perforated metal sheets or by a wire mesh, wire mesh or wire tangle, this body being force or is arranged cohesively.
- the invention proposes to design the base body cylindrically and to arrange it in the cylindrical housing of the machine.
- the housing of the machine can also serve as a cover for the groove formed in one surface of the base body.
- the channels and / or pores for the process gas of the heating and cooling machine can be open to the gap formed with the jacket surface of the respective piston, so that a particularly compact and economically producible construction for the heat exchanger results .
- the pistons of the heating and cooling machine have a larger diameter, according to the invention there is also the possibility of sealing the channels and / or pores for the process gas by means of a bushing relative to the piston gap, the bushing in the area of the respective working space of the machine with inlet and Outlet openings must be provided.
- FIG. 1 shows a first exemplary embodiment of a heat exchanger used in a heating and cooling machine operating according to a regenerative gas cycle process, on the basis of a longitudinal section through such a machine
- FIG. 2 shows an enlarged front view of half of the heat exchanger arranged in the warm part of the machine according to FIG. 1,
- FIG. 3 shows a representation of the heat exchanger corresponding to the section line III-III in FIG. 2, 4 is a front view corresponding to the upper part of FIG. 2 of a second embodiment,
- FIG. 5 shows a longitudinal section through the upper half of the heat exchanger according to FIG. 4 along the section line V - V in FIG. 4,
- FIG. 6 shows an end view corresponding to FIG. 4 of a third exemplary embodiment
- Fig. 7 shows a fourth embodiment of the heat transfer according to the representation of FIGS. 4 and 6 and
- FIG. 8 shows a further representation of a fifth embodiment corresponding to FIGS. 4, 6 and 7.
- FIG. 1 shows a first exemplary embodiment of the heat exchanger on the basis of a longitudinal section through a heating and cooling machine operating according to a regenerative gas cycle process.
- This machine comprises a pressure-tight housing designed as a circular cylinder, which is provided at one end with a flange 1 a, to which a motor housing 2 is screwed with a corresponding flange 2 a.
- the motor housing 2 is only partially shown.
- a pressure-resistant base 3 is arranged, which closes one end of the housing 1.
- the pressure-tight housing 1 is provided with a housing cover 4, which in the exemplary embodiment is screwed to the cylindrical housing 1 by thread and in which a heat generator in the form of a gas burner 5 is arranged.
- This gas burner comprises a cylindrical feed pipe 5a for the fuel gas, which is provided on the outlet side with a metering hemisphere 5b.
- a burner surface 5c made of a stainless steel mesh and acting as a reaction surface is arranged concentrically with this metering hemisphere 5b and limits the gas inflow chamber and glows when the gas burner is in operation, so that the gas burner 5 emits a large part of the heat generated by radiation.
- the resulting flue gases are extracted from a combustion chamber 5d surrounding the hemispherical burner surface 5c by an withdrawn gas pipe 5e, which concentrically surrounds the feed pipe 5a of the gas burner 5.
- the heat generated by the gas burner 5 is emitted by radiation and convection to a partition 6, which is designed as a rotationally symmetrical arch, preferably a conical section, in the exemplary embodiment as a hemisphere, and bulges into the interior of the housing 1.
- the hemispherical curvature runs at a constant distance from the hemispherical burner surface 5c of the gas burner 5.
- the partition 6 designed as part of the pressure-tight housing 1 is fastened to a support ring 6a, which is connected to the end of the cylindrical housing 1 via a membrane-like extension 6b.
- both connections are made by welding.
- insulating rings 7a and 7b which are each arranged on one side of the membrane-like extension 6b on the one hand to the housing cover 4 and on the other hand to the housing 1, the heat dissipation from the partition wall 6 heated by the gas burner 5 to the housing 1 and its housing cover 4 and thus significantly reduced to the environment.
- the heat generated by the gas burner 5 and absorbed by the partition is given off from the inside of the partition 6 to a working medium, preferably helium, which is in a hot working volume V n .
- This hot working volume is limited on the one hand by the partition wall 6 and on the other hand by the piston crown 8a of a piston 8 which is arranged in the housing 1 so as to be movable in the vicinity.
- This piston 8 is connected via a piston rod 8b to a motor or controller arranged in the motor housing 2, which are not shown in the drawing.
- These three volumes are interconnected with the interposition of regenerators Rh, R
- the regenerator R n arranged in the hot part of the housing 1 stores part of the heat given off to the hot working volume V n during the course of the regenerative gas cycle process; the arranged in the cold part of the housing 1 Regenerator R
- a medium taken from the environment is continuously supplied via a line 3a arranged in the base 3, which medium is withdrawn via a line 3b after a portion of its heat content has been removed the environment is returned.
- the heat exchanger W w is fed through connecting lines 1 0a, 1 0b with a heat transfer medium, the heating of which is used to generate energy when the machine is used as a heat machine.
- a baffle 11 arranged in the edge region of the partition 6 is used, which forms 6 flow channels with a small flow cross section in the edge region of the partition wall, so that the hot working volume Vh leaving working medium is guided at high flow speed over the edge region of the partition 6 before the working medium enters the regenerator R j -.
- Figs. 2 and 3 enlarged and shown as an individual part administrated by either exchangers W w consists of a basic body 1 2 that of FIG. 3 on its shell side surface 1 2a with at least one, from the inlet to the outlet of the heat exchanger W w extending groove 1 2b is provided.
- this groove 1 2a is designed as a single-start spiral with nine turns in the exemplary embodiment, the beginning and end of which are provided with the connecting lines 10a and 10b for the liquid heat transfer medium.
- the helical course of the groove 1 2b which cannot be seen in the upper half of FIG. 3 due to the sectional view, is clearly evident from the view of the uncut lower part of FIG. 3.
- the jacket-side surface of the base body 1 2 is sealed by a cover 1 3, which was omitted in the lower half of FIGS. 2 and 3 to show the helical course of the groove 1 2b.
- the cover 1 3 can be achieved in the exemplary embodiment in the vicinity of the end faces of the base body 1 2 annular grooves 1 2c for a not shown in the drawing posed seal trained.
- the cover 1 3 can be a separate component, preferably made of heat-insulating material, but also the housing of the machine according to FIG. 1.
- the base body 1 2 is provided with a plurality of channels and / or pores for the heat-emitting medium, preferably formed by a process gas.
- a plurality of axial grooves 1 2e are formed for this purpose, which in this case are open to the interior of the heat exchanger, since the necessary limitation is in each case indicated by the pistons 8 shown in FIG. 1 or 9 is formed.
- the second exemplary embodiment of a heat exchanger shown in FIGS. 4 and 5 differs from the first embodiment according to FIGS. 2 and 3 in that the axial grooves 1 2e are closed by a bushing 14 which is in the region of the warm working volume V w of the machine according to FIG. 1 is provided with inlet and outlet openings 14a.
- the third exemplary embodiment according to FIG. 6 shows that the base body 1 2 on its inner surface 1 2d instead of the axial grooves 1 2e for the process gas can also be provided with a layer 15 of porous material, through the pores of which the heat-emitting process gas flows.
- the channels for the process gas can also be formed according to FIG. 7 by a body 1 6 from deformed and perforated sheets or according to FIG. 8 by a body 1 7 from a wire mesh, wire mesh or wire tangle.
- the body 1 6 or 1 7 is non-positively or cohesively arranged on the base body 1 2, so that there is good heat transfer between the respective body 1 6 or 1 7 and the base body 1 2.
- a heat exchanger with a small construction volume, which can be produced inexpensively and which results in a high heat transfer efficiency.
- Such a heat exchanger is not only suitable for use in heating and cooling machines operating according to a regenerative gas cycle process, but also can be used for other heat transfer processes, for example in the chemical industry.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/525,710 US5675974A (en) | 1994-01-18 | 1995-01-12 | Heat exchanger |
EP95906930A EP0688416A1 (de) | 1994-01-18 | 1995-01-12 | Wärmeübertrager |
JP7518838A JPH08508090A (ja) | 1994-01-18 | 1995-01-12 | 熱交換器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4401247.0 | 1994-01-18 | ||
DE4401247A DE4401247C2 (de) | 1994-01-18 | 1994-01-18 | Wärmeübertrager |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995019531A1 true WO1995019531A1 (de) | 1995-07-20 |
Family
ID=6508115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1995/000107 WO1995019531A1 (de) | 1994-01-18 | 1995-01-12 | Wärmeübertrager |
Country Status (5)
Country | Link |
---|---|
US (1) | US5675974A (de) |
EP (1) | EP0688416A1 (de) |
JP (1) | JPH08508090A (de) |
DE (1) | DE4401247C2 (de) |
WO (1) | WO1995019531A1 (de) |
Families Citing this family (35)
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KR100197646B1 (ko) * | 1995-05-15 | 1999-06-15 | 김영환 | 버스트 모드 종료 검출장치 |
DE19612616C2 (de) * | 1996-03-29 | 2002-03-07 | Sipra Patent Beteiligung | Stirlingmotor |
US6591609B2 (en) | 1997-07-15 | 2003-07-15 | New Power Concepts Llc | Regenerator for a Stirling Engine |
TW426798B (en) * | 1998-02-06 | 2001-03-21 | Sanyo Electric Co | Stirling apparatus |
CA2292684A1 (en) | 1999-12-17 | 2001-06-17 | Wayne Ernest Conrad | Self-contained light and generator |
DE19904923A1 (de) * | 1999-02-06 | 2000-08-17 | Bosch Gmbh Robert | Wärme- und Kältemaschine, insbesondere Vuilleumier-Wärmepumpe oder Stirling-Maschine |
US6336326B1 (en) | 1999-12-17 | 2002-01-08 | Fantom Technologies Inc. | Apparatus for cooling a heat engine |
US6311490B1 (en) | 1999-12-17 | 2001-11-06 | Fantom Technologies Inc. | Apparatus for heat transfer within a heat engine |
US6345666B1 (en) * | 1999-12-17 | 2002-02-12 | Fantom Technologies, Inc. | Sublouvred fins and a heat engine and a heat exchanger having same |
US6279318B1 (en) | 1999-12-17 | 2001-08-28 | Fantom Technologies Inc. | Heat exchanger for a heat engine |
US6286310B1 (en) | 1999-12-17 | 2001-09-11 | Fantom Technologies Inc. | Heat engine |
US6332319B1 (en) | 1999-12-17 | 2001-12-25 | Fantom Technologies Inc. | Exterior cooling for a heat engine |
US6293101B1 (en) | 2000-02-11 | 2001-09-25 | Fantom Technologies Inc. | Heat exchanger in the burner cup of a heat engine |
US7111460B2 (en) | 2000-03-02 | 2006-09-26 | New Power Concepts Llc | Metering fuel pump |
US6892762B2 (en) * | 2001-02-28 | 2005-05-17 | Porter Instrument Company, Inc. | Manifolded fluid delivery system |
US7308787B2 (en) * | 2001-06-15 | 2007-12-18 | New Power Concepts Llc | Thermal improvements for an external combustion engine |
DE10229311A1 (de) * | 2002-06-29 | 2004-01-29 | Leybold Vakuum Gmbh | Refrigerator mit Regenerator |
US8511105B2 (en) | 2002-11-13 | 2013-08-20 | Deka Products Limited Partnership | Water vending apparatus |
US8069676B2 (en) | 2002-11-13 | 2011-12-06 | Deka Products Limited Partnership | Water vapor distillation apparatus, method and system |
EP1562686A2 (de) | 2002-11-13 | 2005-08-17 | Deka Products Limited Partnership | Destillation mit brüdenverdichtung |
US7310945B2 (en) | 2004-02-06 | 2007-12-25 | New Power Concepts Llc | Work-space pressure regulator |
US7007470B2 (en) * | 2004-02-09 | 2006-03-07 | New Power Concepts Llc | Compression release valve |
WO2005108865A1 (en) | 2004-05-06 | 2005-11-17 | New Power Concepts Llc | Gaseous fuel burner |
JP2009537787A (ja) * | 2006-05-19 | 2009-10-29 | スーパー・コンダクター・テクノロジーズ・インコーポレーテッド | 熱交換器アッセンブリ |
US11826681B2 (en) | 2006-06-30 | 2023-11-28 | Deka Products Limited Partneship | Water vapor distillation apparatus, method and system |
JP5490685B2 (ja) | 2007-06-07 | 2014-05-14 | デカ・プロダクツ・リミテッド・パートナーシップ | 水蒸気蒸留の装置、方法およびシステム |
US11884555B2 (en) | 2007-06-07 | 2024-01-30 | Deka Products Limited Partnership | Water vapor distillation apparatus, method and system |
MX354085B (es) | 2008-08-15 | 2018-02-09 | Deka Products Lp | Aparato expendedor de agua. |
CN101482071B (zh) * | 2009-02-04 | 2014-11-26 | 白坤生 | 斯特林发动机 |
JP5962050B2 (ja) * | 2012-02-16 | 2016-08-03 | いすゞ自動車株式会社 | スターリングエンジンの再生器用部品及びこれを用いた再生器 |
US9593809B2 (en) | 2012-07-27 | 2017-03-14 | Deka Products Limited Partnership | Water vapor distillation apparatus, method and system |
CN103016204A (zh) * | 2012-12-12 | 2013-04-03 | 优华劳斯汽车系统(上海)有限公司 | 一种热交换器及加热和冷却装置 |
CN111720236B (zh) * | 2019-03-20 | 2023-07-28 | 内蒙古工业大学 | 斯特林发动机中的加热器和斯特林发动机 |
WO2020242843A1 (en) | 2019-05-21 | 2020-12-03 | General Electric Company | System for energy conversion |
RU2743760C1 (ru) * | 2020-05-12 | 2021-02-25 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" | Массообменный аппарат |
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DE14129C (de) * | G. A. BUSCHBAUM in Darmstadt, Lieblgstr. 25 | Neuerungen an geschlossenen Luftmaschinen | ||
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-
1994
- 1994-01-18 DE DE4401247A patent/DE4401247C2/de not_active Expired - Fee Related
-
1995
- 1995-01-12 WO PCT/EP1995/000107 patent/WO1995019531A1/de not_active Application Discontinuation
- 1995-01-12 EP EP95906930A patent/EP0688416A1/de not_active Ceased
- 1995-01-12 US US08/525,710 patent/US5675974A/en not_active Expired - Fee Related
- 1995-01-12 JP JP7518838A patent/JPH08508090A/ja active Pending
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE18458C (de) * | G. A. BUSCHBAUM in Darmstadt, Liebigstr. 25 | Neuerungen an geschlossenen Luftmaschinen | ||
DE14129C (de) * | G. A. BUSCHBAUM in Darmstadt, Lieblgstr. 25 | Neuerungen an geschlossenen Luftmaschinen | ||
DE9678C (de) * | E. H. NACKE in Dresden, Ostra-Allee 8 | Neuerungen an zweicylindrigen geschlossenen Heifsluftmaschinen | ||
US2688228A (en) * | 1947-06-06 | 1954-09-07 | Hartford Nat Bank & Trust Co | Heat exchanger for hot gas engines |
DE946196C (de) * | 1954-01-13 | 1956-07-26 | Philips Nv | Heissgaskolbenmaschine |
US4774808A (en) * | 1987-07-06 | 1988-10-04 | Otters John L | Displacer arrangement for external combustion engines |
US4984428A (en) * | 1988-09-29 | 1991-01-15 | Aisin Seiki Kabushiki Kaisha | Stirling engine |
DE4023327A1 (de) * | 1990-07-21 | 1992-01-23 | Franz Xaver Prof Dr Ing Eder | Aussenbeheizte regenerative arbeits- und waermemaschine |
WO1993018354A1 (de) * | 1992-03-05 | 1993-09-16 | Viessmann Werke Gmbh & Co. | Aussenbeheizte, regenerative wärme- und kältemaschine |
DE4219583A1 (de) * | 1992-06-15 | 1993-12-16 | Eder Franz X | Vorrichtung zur Wärmeübertragung bei hoher Temperatur auf das Arbeitsmedium von Regenerativ-Arbeits- oder Wärmemaschinen |
DE4232555A1 (de) * | 1992-09-29 | 1994-04-07 | Hemscheidt Maschf Hermann | Heißgasmotor mit äußerer Verbrennung und geschlossenem Kreisprozeß |
WO1995006847A1 (de) * | 1993-08-28 | 1995-03-09 | Robert Bosch Gmbh | Wärme- und kältemaschine |
Also Published As
Publication number | Publication date |
---|---|
EP0688416A1 (de) | 1995-12-27 |
DE4401247C2 (de) | 1998-10-08 |
JPH08508090A (ja) | 1996-08-27 |
US5675974A (en) | 1997-10-14 |
DE4401247A1 (de) | 1995-07-20 |
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