WO1996035084A1 - Wärmetauscher - Google Patents
Wärmetauscher Download PDFInfo
- Publication number
- WO1996035084A1 WO1996035084A1 PCT/DE1996/000625 DE9600625W WO9635084A1 WO 1996035084 A1 WO1996035084 A1 WO 1996035084A1 DE 9600625 W DE9600625 W DE 9600625W WO 9635084 A1 WO9635084 A1 WO 9635084A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pot
- heat exchanger
- water
- exchanger according
- water guide
- Prior art date
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
- F24H1/263—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 with a dry-wall combustion chamber
-
- 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
- F24H9/0015—Guiding means in water channels
Definitions
- the invention relates to a heat exchanger in the form of a pot with an end connection to a burner or the like.
- a heat exchanger in the form of a pot with an end connection to a burner or the like.
- a known aforementioned heat exchanger has on the underside in the region of the pot bottom a lateral water inlet into which the water outlet connection of a water pump arranged below the heat exchanger is introduced in a sealed manner in order to ode the heat exchanger medium in the form of water both to the pot and also to operate the arrangement Feed pot jacket.
- the pot jacket has a helical water guide in order to conduct the water in a helical manner practically over the entire surface of the pot jacket before the heated water at the end of the screw is discharged for a consumer in the area of the end-side connection of the heat exchanger to the burner .
- the water supplied circulates in the area of the pot shell of the heat exchanger, but not in the area of the pot bottom.
- a burner flame tube which extends into the interior of the pot-shaped heat exchanger can therefore overheat the bottom of the pot, in particular with high heating output at a high water outlet temperature near the boiling point.
- Local overheated pot base areas lead to the formation of vapor bubbles, which impair the efficiency of the heat exchanger.
- the overheated pot base areas are exposed to increased material stress, which affects the service life of the heat exchanger.
- the essence of the invention is that water guide sections are provided in the pot or the heat exchanger for a directed, essentially area-wide flow of water into the pot bottom.
- the bottom of the pot has at least two crescent-shaped water guide channels for a circulating water flow in the bottom of the pot following the side water inlet.
- the water guide channels can be formed by a separate guide plate insert in the pot base, the guide plates having a top view of the pot bottom having a sickle shape and the sickle root being located in the region of the lateral water inlet.
- the bottom of the pot has crescent-shaped water guide channels in the form of integrated recesses, the crescent root being located in the region of the lateral water inlet.
- the radially outermost crescent-shaped water guide channel preferably has the smallest flow cross-section of all the water guide channels of the arrangement, the width of this radially outermost water guide channel along the sickle being largely kept constant.
- radially inwardly lying water guide channels preferably have a larger flow cross section, which increases in the direction of the center of the pot bottom in the individual water guide channels.
- a radially inner crescent-shaped water guide channel expediently runs through the axial center of the heat exchanger or through the center of the heat exchanger pot bottom.
- Radially located crescent water channels have an extension along the sickle in an advantageous development of the invention, which is preferably kidney-shaped.
- the individual crescent-shaped water guiding channels In order to support an area-wide flow through the pot base, the individual crescent-shaped water guiding channels have flat lateral water overflow edges and / or flat water outlet ends, the length of the individual sickle expediently extending over a pot base angle of approximately 100 °. If necessary, smaller channels can branch off from these main channels.
- a heat exchanger with a (known) screw-shaped water guide in the pot casing it expediently has a radially outermost edge of the pot bottom or a water barrier between the lateral water inlet and the beginning of the screw-shaped pot casing water guide, which prevents the water flowing into the bottom of the pot from the water pump does not immediately jacket is fed in, but is first forced to circulate around 360 ° on the pot bottom side before the water enters the helical water guide of the pot jacket. If necessary, this water barrier can also be provided along other, radially inner water guide channels.
- the aforementioned pot bottom edge can also be embodied integrated in the pot bottom, in particular if the heat exchanger as a whole is an aluminum die-cast part.
- the edge of the pot base is a separate component, similar to the variant of the separate guide plate insert in the pot, wherein the edge width of the separate edge of the pot base can be adjusted in a further development. If the edge width is set to small, flowing water can spill over the edge. If the edge is pulled higher, for example up to a stop of the enclosing housing part of the heat exchanger, the entire amount of water supplied is forced to first pass the bottom of the pot in a directed flow.
- the edge length that is to say the length of the jacket arc of the pot bottom edge, can also be adjusted in order to ensure in any case that in the case of a water pump the barrier or the aforementioned pot bottom edge from the water outlet connection of the water pump to the beginning of the helical water guide tion extends.
- a further embodiment variant is characterized in that the base of the pot is slightly curved outwards. It is thus achieved by the invention that the supplied cooling water is directed in two or more channels at the bottom of the pot in such a way that a uniform temperature is established over the entire bottom area when a heat exchanger is in operation. There are therefore no local temperature peaks in the base of the pot which could lead to vapor bubbles, as is the case in the known prior art. With the invention, a high water outlet temperature in the boiling point range can thus be practiced quickly in practically all water heaters with a high heating output, without steam bubbles forming or material damage to the pot bottom of the heat exchanger.
- liquid heat exchange medium a medium other than water can be provided as the liquid heat exchange medium.
- FIG. 1 shows a heat exchanger in the form of a pot, with the housing being omitted in a connection to a lower water pump, in a schematic perspective illustration
- FIG. 2 is a view of the bottom of the pot of the heat exchanger according to FIG. 1, seen from the right,
- FIG. 3 shows a section through the arrangement according to FIG. 2 along the line A-A
- a heat exchanger 1 according to the drawing in which the outer housing is omitted for reasons of better illustration of the invention, has a pot shape, the pot base 4 with the pot jacket 5 being an integral die-cast part made of aluminum.
- the heat exchanger 1 has an end connection 2 with the formation of a peripheral flange which, in the assembled state of a heat exchanger arrangement, is fastened, for example, to a burner (not illustrated) in such a way that the flame tube of the burner concentrically into the interior of the heat exchanger 1 as shown in FIG .l, on the left.
- the right end of the (not illustrated) flame tube according to FIG. 1 is open and is at a distance from the pot bottom 4.
- the pot bottom 4 comprises a lateral water inlet 3, in which the outlet end 15 of a water pump
- the pot casing 5 has a helical water guide 11 around its circumference in order to set up a circulating water flow along the pot casing 5 during heat exchanger operation, as is schematically illustrated by the arrow E in FIG. 1.
- the start 12 of the helical water guide 11 is shown in FIG. 1 at the right upper end of the pot base 4, while the end 16 of the helical water guide 11 is located in the region of the flange 17 which is fastened with the burner (not shown).
- the water outlet in the area of the end 16 of the helical water guide is not shown in FIG. 1 for reasons of clarity. It also does not concern the essence of the invention.
- the essence of the invention is to provide 4 water guide sections in the pan base for a directed, essentially surface-covering flow of water (or another liquid heat exchange medium) into the pan base.
- the water guide sections are, in particular according to the exemplary embodiment of the drawing, a radially outer water guide channel 6 and a radially inner water guide channel 7, which are formed integrally with the pot bottom 4 in the form of depressions.
- the two water guide channels 6 and 7 are shown in greater detail in FIGS. 2 to 6. They have a sickle shape, the length of the sickles extending over an angle of the pot base of approx. 100 °, wherein other sickle lengths can also be provided if necessary.
- the radially outer water duct 6 has a flow cross-section d that is smaller than the flow cross-section D of the radially inner water duct 7.
- other cross-sectional ratios can also be provided.
- the radially outer water guide channel 6 has the same width and extends in the immediate vicinity of the circular pot bottom circumference, where an axially projecting pot bottom edge 13 is integrated in the pot bottom 4, which extends from the lateral water inlet 3 to to the beginning 12 of helical water guide 11 extends.
- the protruding edge of the pot bottom 13 acts as a water barrier during operation, so that the inflowing water conveyed by the water pump 14 is guided in a circulating manner primarily along the channels 6, 7 over the pot bottom 4 before the circulating water of the pot bottom approximately after one 360 "turn to the pot casing 5 according to arrow E.
- the radial water channels 6, 7 have lateral water overflow side edges and a flat water outlet end 9 at the sickle end, so that the water not only circulates directly in the channels 6 and 7, but also circulates in the remaining flat areas of the pot bottom 4 after a lateral transition, the latter circulation being supported by the main circulation of the water guiding channels 6 and 7, ie the water in the flat areas of the pot is "carried away".
- the radially inner water guide channel 7 does not have a constant width, such as the radially outer water guide channel 6, but an extension in the central region of the sickle length, which is approximately kidney-shaped with the water outlet end 9 there.
- a result of this expansion and due to the comparatively large flow cross-section D of the radially inner water guide channel 7 compared to the smaller through-flow cross section d of the radially outer water guide tion channel is achieved that the angular velocity of all circulating flow components of the water in the region of the pot bottom 4 is approximately constant.
- flow components with different angular velocities can also be provided.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Cookers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/952,027 US5983841A (en) | 1995-04-29 | 1996-04-02 | Heat exchanger |
JP8532910A JP2901761B2 (ja) | 1995-04-29 | 1996-04-02 | 熱交換器 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19515819 | 1995-04-29 | ||
DE19518435A DE19518435C2 (de) | 1995-04-29 | 1995-05-19 | Wärmetauscher |
DE19518435.1 | 1995-05-19 | ||
DE19515819.9 | 1995-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996035084A1 true WO1996035084A1 (de) | 1996-11-07 |
Family
ID=26014742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/000625 WO1996035084A1 (de) | 1995-04-29 | 1996-04-02 | Wärmetauscher |
Country Status (4)
Country | Link |
---|---|
US (1) | US5983841A (de) |
JP (1) | JP2901761B2 (de) |
CZ (1) | CZ286012B6 (de) |
WO (1) | WO1996035084A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070139661A1 (en) * | 2004-08-05 | 2007-06-21 | Quark, Inc. | Systems and methods for producing media products |
US6619054B1 (en) | 2002-05-06 | 2003-09-16 | Hydrogenics Corporation | Condenser for dehumidifying gas |
DE10306699A1 (de) * | 2003-02-18 | 2004-09-02 | Robert Bosch Gmbh | Wärmetauscher mit einem strömungsoptimierten wärmeaufnehmenden Strömungskanal, insbesondere für ein Heizgerät |
WO2005028077A1 (en) * | 2003-09-22 | 2005-03-31 | Hydrogenics Corporation | Separator for removing liquid from fluid |
FR2919711B1 (fr) * | 2007-08-02 | 2009-11-06 | E U R L Jean Marie Thevenon Sa | Echangeur thermique vertical a flux inverses |
DE102011004159A1 (de) * | 2011-02-15 | 2012-08-16 | J. Eberspächer GmbH & Co. KG | Wärmetauscheranordnung, insbesondere für ein brennstoffbetriebenes Fahrzeugheizgerät |
DE102012214480A1 (de) | 2012-06-13 | 2013-12-19 | Eberspächer Climate Control Systems GmbH & Co. KG | Wärmetauscheranordnung |
AU2017244041B2 (en) | 2016-03-30 | 2022-12-01 | Marine Canada Acquisition Inc. | Vehicle heater and controls therefor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1233534A (de) * | 1967-05-05 | 1971-05-26 | ||
DE3010078A1 (de) * | 1980-03-15 | 1981-10-01 | Webasto-Werk W. Baier GmbH & Co, 8035 Gauting | Mit fluessigem brennstoff betriebener brenner fuer heizvorrichtungen |
DE3807189A1 (de) * | 1988-03-04 | 1989-09-14 | Webasto Ag Fahrzeugtechnik | Heizgeraet, insbesondere fahrzeugzusatzheizgeraet |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU1382966A (en) * | 1966-11-11 | 1969-03-13 | Menze Diedrich | Improvements in heat exchangers |
US3730229A (en) * | 1971-03-11 | 1973-05-01 | Turbotec Inc | Tubing unit with helically corrugated tube and method for making same |
US4479484A (en) * | 1980-12-22 | 1984-10-30 | Arkansas Patents, Inc. | Pulsing combustion |
US4588659A (en) * | 1984-12-11 | 1986-05-13 | Energy Research Corporation | Fuel vaporizer |
US5372185A (en) * | 1993-06-29 | 1994-12-13 | Bradford-White Corporation | Combined water heater and heat exchanger |
US5537955A (en) * | 1994-10-24 | 1996-07-23 | Wu; Ya-Ching | Hot water heater |
-
1996
- 1996-04-02 JP JP8532910A patent/JP2901761B2/ja not_active Expired - Fee Related
- 1996-04-02 WO PCT/DE1996/000625 patent/WO1996035084A1/de active IP Right Grant
- 1996-04-02 CZ CZ973364A patent/CZ286012B6/cs not_active IP Right Cessation
- 1996-04-02 US US08/952,027 patent/US5983841A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1233534A (de) * | 1967-05-05 | 1971-05-26 | ||
DE3010078A1 (de) * | 1980-03-15 | 1981-10-01 | Webasto-Werk W. Baier GmbH & Co, 8035 Gauting | Mit fluessigem brennstoff betriebener brenner fuer heizvorrichtungen |
DE3807189A1 (de) * | 1988-03-04 | 1989-09-14 | Webasto Ag Fahrzeugtechnik | Heizgeraet, insbesondere fahrzeugzusatzheizgeraet |
Also Published As
Publication number | Publication date |
---|---|
JP2901761B2 (ja) | 1999-06-07 |
JPH10512038A (ja) | 1998-11-17 |
CZ336497A3 (cs) | 1998-04-15 |
CZ286012B6 (cs) | 1999-12-15 |
US5983841A (en) | 1999-11-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69521612T2 (de) | Vorrichtung zur bereitung von heisswasser oder dampf | |
EP0243986B1 (de) | Elektrische Beheizung | |
DE3514053C2 (de) | ||
AT391202B (de) | Elektrischer durchlauferhitzer | |
DE2403538B2 (de) | Wärmerohr | |
DE112010002983B4 (de) | Fritteuseneinheit und Fritteusenwärmetauschrohranordnung | |
WO1996035084A1 (de) | Wärmetauscher | |
EP0238955A2 (de) | Medien-Erhitzer | |
DE2811144A1 (de) | Fahrzeug-brennkraftmaschine | |
DE10200176B4 (de) | Elektrokraftstoffpumpe | |
DE2628589B2 (de) | Wärmetauscher | |
DE19518435C2 (de) | Wärmetauscher | |
DE1579950C3 (de) | Hochbehälter für ein Zentralheizungssystem mit Zwangsumlautvorrichtung | |
DE10319226B4 (de) | Vorrichtung zur Kühlung oder Heizung eines Fluids | |
DE19539909B4 (de) | Peripheralpumpe | |
EP3592967B1 (de) | Vorwärmeinrichtung | |
DE2530296C3 (de) | Durchlauferhitzer für Kaffeemaschinen | |
EP0595945B1 (de) | Doppelwandiger heizschacht | |
DE3506181C2 (de) | ||
EP0327889B1 (de) | Medien-Heizeinheit | |
EP0230496B1 (de) | Temperatur-Regeleinrichtung, insbesondere für Flüssigkeiten oder Gase | |
EP1344994A2 (de) | Kompaktheizkessel | |
DE4224212A1 (de) | Doppelwandiger heizschacht | |
EP3953646B1 (de) | Elektrisches heizgerät | |
AT396522B (de) | Wärmetauscher |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA CN CZ JP RU US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 08952027 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: PV1997-3364 Country of ref document: CZ |
|
WWP | Wipo information: published in national office |
Ref document number: PV1997-3364 Country of ref document: CZ |
|
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: CA |
|
WWG | Wipo information: grant in national office |
Ref document number: PV1997-3364 Country of ref document: CZ |