EP1466135B1 - Schabwärmetauscher - Google Patents
Schabwärmetauscher Download PDFInfo
- Publication number
- EP1466135B1 EP1466135B1 EP03700003A EP03700003A EP1466135B1 EP 1466135 B1 EP1466135 B1 EP 1466135B1 EP 03700003 A EP03700003 A EP 03700003A EP 03700003 A EP03700003 A EP 03700003A EP 1466135 B1 EP1466135 B1 EP 1466135B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- housing
- scraped surface
- surface heat
- exchanger according
- 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.)
- Expired - Lifetime
Links
Images
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
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/008—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using scrapers
Definitions
- the invention relates to a scraped heat exchanger according to the Preamble of the independent claim.
- Scraper heat exchangers are known, for example, from WO-A-98/54530 and from DE-A-25 49 600 known.
- the scraped surface heat exchanger from DE-A-25 49 600 has a housing with jacket spaces through which a heat exchange medium flows. Between Heat exchange surfaces of the shell spaces is a product space defined, by which a temperature to be tempered (to be cooled or flowable material to be heated flows.
- One Scraper protrudes into this product space and is from a motor drive driven by rotation. there It may touch the heat exchange surfaces Anlagerndes Good (for example, good, which is fixed by cooling has become and attached to the heat exchange surfaces) from the heat exchange surfaces.
- the inventive scraped heat exchanger is the Housing bell-shaped with his coat spaces.
- the motor drive is at least partially in the interior received the bell-shaped housing added.
- the housing includes a separate inner housing part and a via this inner housing part überstülpbares separate outer housing part, the between to enclose the product space.
- the so designed Housing can be easily disassembled and cleaned well, and the success of the cleaning process can (with disassembled Housing) also subjected to a simple visual inspection become.
- the dimensions of the product space and the dimensions of the wiper in the substantially axial portion of the bell-shaped housing so dimensioned that the product space forms an annular gap into which the Scraper protrudes.
- the narrow annular gap trained product space in which in the operation of Scraper rotates as a result, due to the geometric dimensions of the annular gap, in the axial part the bell-shaped housing no thicker layers in the Annular gap can form, so that in the material to be tempered in the axial part of the housing always a high Temperature gradient occurs. As a result of this high Temperature gradient becomes a particularly efficient Temperature control of the estate achieved.
- the scraper in a further embodiment of the inventive Schabffyleyers the scraper includes a hub, from which spring from several arms, those with scrapers are provided.
- the hub of the scraper is on a with attached to the motor drive shaft connected and juts into one at the top of the bell-shaped Housing provided outlet in it. In these The product space also opens into the connection piece.
- This embodiment of the scraped heat exchanger is of the constructive side ago particularly advantageous.
- the inventive Schabffyleyers can in the lower end of the Product room an inlet for the material to be tempered and on Outlet of bell-shaped housing an outlet for the tempered Good be provided.
- the scraping of the Scrapers are designed and arranged so that in operation the gutter from the inlet spiral through the Product room flows towards the outlet. This causes a particularly efficient cooling or heating of the material.
- the motor drive Planetary gear with a hollow shaft, which the Drive shaft on which the hub is mounted, receives, so that the planetary gear on the motor drive power the drive shaft converts.
- the Drive shaft easy to install and over the Planetary gear can, if desired, a Translation / reduction made.
- the inventive Schabffyleyers has the drive shaft in the one Area in which the hub is fixed, a polygon outer contour on, and the hub a corresponding one Inner contour.
- the hub is on after its attachment the drive shaft relative to the drive shaft fixed position.
- the housing is detachable with a separate frame connected, which height adjustable feet having.
- This embodiment has the advantage that the Housing separately removable from the frame (and thereby, for example Easier to disassemble and clean, see also Design with inner and outer housing part on above), on the other hand, by the height-adjustable feet on the frame a good adjustment of Schabebenleyers in total, regardless of how, e.g. the Surface is on which the frame stands.
- a further embodiment of the a scraped heat exchanger according to the invention Frequency converter for controlling the speed of the motor Drive. This embodiment allows a special simple and reliable control of the speed of the motor drive.
- FIG. 1 and FIG Scraper heat exchanger 1 comprises a bell-shaped housing 2 with two separate housing parts, an inner housing part 20 and one on the inner Housing part überstülpbaren outer housing part 21.
- a jacket space 200 or 210 is provided in the inner housing part 20 and in the outer housing part in each case.
- At the bottom End region of the shell spaces 200 and 210 is one each Inlet and in the upper end of the Mantelippo one each Outlet intended for a heat exchange medium (only the Inlet 211 and the outlet 212 of the outer housing part 21st can be seen), which in operation through the jacket spaces is pumped, for example, a coolant (or im Case of a desired heating a heating fluid).
- the inner shell space 200 is from a heat exchange surface 200a and the outer shell space of a heat exchange surface 210a limited.
- the heat exchange surfaces 200a of the inner Housing part 20 and 210 a of the outer housing part 21st define between them a product space 3, in which a scraper 4 protrudes into it.
- the two housing parts 20 and 21 are provided by a quick-release 23 Clamping ring 22 held together.
- the product space 3 has - similar to the housing 2 - a bell-shaped and forms in the axial part 24 of the bell-shaped housing 2 an annular gap, wherein at the axial part 24 is an approximately horizontally extending part 25th the bell-shaped housing 2 connects.
- An inlet 30 for the material to be tempered is in the lower end of the Product space 3 provided while at the upper end of the bell-shaped housing an outlet 31 for the Well tempered is provided.
- the scraper 4 comprises a hub 40, from which several Arms 41 - four in the illustrated embodiment Arms - spring up here as double struts 410,411 are formed.
- the double struts 410,411 enclose a gap 412 between them, in which Schabiata 42 are used.
- Schabemia 42 are used.
- Another strut 43 is for this purpose in provided near the hub region of the arms 41.
- the scraping elements 42 are facing outwards projecting protrusions 420 as well as inward protruding projections 421 (the inward projecting projections 421 face outward considers wells).
- this Projections 420 and recesses 421 may be in the gap 412 inserted scraping elements 42 in operation - ie at Rotating scraper 4 - a spiral flow of the in the lower end region through the inlet 30 supplied to tempering Guts are generated, which is an efficient Cooling or heating of the estate allows.
- outwardly and inwardly projecting protrusions 420 and 421 may be on the heat exchange surfaces 200a 210a Anlagerndes from these surfaces from what a Reduction of the efficiency of heat transfer counteracts and thus the efficiency of the heat exchanger 1 increases.
- the hub 40 of the scraper 4 is on a drive shaft. 5 arranged, which is performed by a sealing element 6 is.
- a sealing element 6 is.
- the hub 40 is on the drive shaft 5 is fixed and protrudes into the outlet 31 of the bell-shaped housing 2 inside.
- the drive shaft 5 has in the area in which the hub 40th is attached, a polygon outer contour on, and the hub 40 has a corresponding inner contour.
- a receptacle 201 for a Seal assembly 50 is formed so that the Seal assembly 50 mounted in a simple manner centered can be what the assembly and disassembly process facilitates and in particular no screwing the Sealing arrangement 50 requires.
- a motor drive 8 For driving the drive shaft 5 and thus for Rotational driving of the scraper 4 is a motor drive 8 is provided, which has a motor 80 as well in the embodiment shown here Planetary gear 81 has.
- the planetary gear 81 can thereby comprise a hollow shaft, which the drive shaft. 5 receives, so that the planetary gear 81, the motor Driving force on the drive shaft 5 converts.
- the Drive shaft 5 can be mounted in a simple manner or dismantle.
- the speed of the motor 80 can for example by a frequency converter (not shown) are particularly easy to control.
- the motor drive 8 is in one suspended separate frame 9, with which the housing. 2 fixed, but releasably connected, so it for example can be easily removed from the rack for disassembly.
- the housing 2 is for this purpose attached to a housing part, e.g. on the inner housing part 20, provided with eyelets 202, which can be screwed to the frame 9.
- the frame 9 is here designed as a tripod, with height-adjustable feet 90 to compensate for unevenness of the surface on which the Heat exchanger 1 should be set up.
- the housing 2 can be disassembled by the over the inner housing part 21 pushed over the outer housing part 20 is subtracted.
- the motor drive 8 at least partially, in the illustrated embodiment even almost completely, in the interior of the bell-shaped Housing 2 added, which is a particularly compact and space-saving design of the inventive Schabebenleyers 1 result and due to the bell-shaped housing 2 is possible.
- material to be tempered is passed through the inlet 30 pumped into the lower end of the product space 3.
- the im Product space 3 between the heat exchange surfaces 200a and 210a rotating scraper 4 causes in the narrow annular gap a spiral flow of the material to be tempered, which is thus tempered in an efficient manner.
- a Stopping the rotating scraper 4 or by a fast braking (rapid change of Rotation speed) can, if desired, a Mixing of the estate can be achieved.
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)
Description
- Fig. 1
- eine perspektivische Explosionsdarstellung eines
Ausführungsbeispiels eines erfindungsgemässen Schabwärmetauschers
mit glockenförmigem Gehäuse und
separatem Gestell
und - Fig. 2
- das Ausführungsbeispiel aus Fig. 1 im Zusammenbau, teilweise in Schnittdarstellung.
Claims (10)
- Schabwärmetauscher (1) mit einem Gehäuse (2), welches Mantelräume (200,210) aufweist, die von einem Wärmetauschmedium durchströmbar sind und von Wärmetauschflächen (200a,210a) begrenzt sind, welche einen Produktraum (3) für ein fliessfähiges zu temperierendes Gut definieren, ferner mit einem in den Produktraum (3) hineinragenden Abstreifer (4) zum Abstreifen von eventuell an den Wärmetauschflächen (200a,210a) sich anlagerndem Gut, sowie mit einem motorischen Antrieb (8) zum rotatorischen Antreiben des Abstreifers (4), dadurch gekennzeichnet, dass das Gehäuse (2) mit seinen Mantelräumen (200,210) glockenförmig ausgebildet ist und der motorische Antrieb (8) zumindest teilweise im Innenraum des glockenförmigen Gehäuses (2) aufgenommen angeordnet ist.
- Schabwärmetauscher nach Anspruch 1, bei welchem das Gehäuse (2) ein separates inneres Gehäuseteil (20) und ein über dieses innere Gehäuseteil (20) überstülpbares separates äusseres Gehäuseteil (21) umfasst, die zwischen sich den Produktraum (3) einschliessen.
- Schabwärmetauscher nach Anspruch 1 oder 2, bei welchem die Abmessungen des Produktraums (3) und die Abmessungen des Abstreifers (4) in dem im wesentlichen axialen Teil (24) des glockenförmigen Gehäuses (2) so bemessen sind, dass der Produktraum (3) einen Ringspalt bildet, in welchen der Abstreifer (4) hineinragt.
- Schabwärmetauscher nach einem der vorangehenden Ansprüche, bei welchem im unteren Endbereich der Mantelräume (200,210) ein Einlass (211) für das Wärmetauschmedium und im oberen Endbereich der Mantelräume (200,210) ein Auslass (212) für das Wärmetauschmedium vorgesehen ist.
- Schabwärmetauscher nach einem der vorangehenden Ansprüche, bei welchem der Abstreifer (4) eine Nabe (40) umfasst, von der aus mehrere Arme (41) entspringen, die mit Schabelementen (42) versehen sind, wobei die Nabe (40) des Abstreifers (4) auf einer mit dem motorischen Antrieb (8) verbundenen Antriebswelle (5) befestigt ist und in einen am oberen Ende des glockenförmigen Gehäuses (2) vorgesehenen Auslassstutzen (31) hineinragt, in welchen hinein auch der Produktraum (3) einmündet.
- Schabwärmetauscher nach Anspruch 5, bei welchem im unteren Endbereich des Produktraums (3) ein Einlass (30) für das zu temperierende Gut und am Auslassstutzen (31) des glockenförmigen Gehäuses (2) ein Auslass für das temperierte Gut vorgesehen ist, und bei welchem die Schabelemente (42) des Abstreifers so ausgebildet und angeordnet sind, dass im Betrieb das Gut vom Einlass (30) spiralförmig durch den Produktraum (3) hin zum Auslass strömt.
- Schabwärmetauscher nach Anspruch 5 oder 6, bei welchem der motorische Antrieb (8) ein Planetengetriebe (81) mit einer Hohlwelle umfasst, welche die Antriebswelle (5), auf der die Nabe (40) befestigt ist, aufnimmt, sodass das Planetengetriebe (81) die motorische Antriebskraft auf die Antriebswelle (5) umsetzt.
- Schabwärmetauscher nach einem der Ansprüche 5 bis 7, bei welchem die Antriebswelle (5) in demjenigen Bereich, in welchem die Nabe (40) befestigt ist, eine Polygon-Aussenkontur aufweist, und die Nabe (40) eine entsprechende Innenkontur.
- Schabwärmetauscher nach einem der vorangehenden Ansprüche, bei welchem das Gehäuse (2) lösbar mit einem separaten Gestell (9) verbunden ist, welches höhenverstellbare Füsse (90) aufweist.
- Schabwärmetauscher nach einem der vorangehenden Ansprüche, mit einem Frequenzumformer zur Steuerung der Drehzahl des motorischen Antriebs (8).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH46022002 | 2002-01-14 | ||
CH462002 | 2002-01-14 | ||
PCT/CH2003/000003 WO2003058147A1 (de) | 2002-01-14 | 2003-01-07 | Schabwärmetauscher |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1466135A1 EP1466135A1 (de) | 2004-10-13 |
EP1466135B1 true EP1466135B1 (de) | 2005-10-19 |
Family
ID=4279497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03700003A Expired - Lifetime EP1466135B1 (de) | 2002-01-14 | 2003-01-07 | Schabwärmetauscher |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1466135B1 (de) |
AU (1) | AU2003200828A1 (de) |
WO (1) | WO2003058147A1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1028818A (en) * | 1911-05-16 | 1912-06-04 | Gustav A Fischer | Pasteurizing-machine. |
CH206815A (de) * | 1937-06-18 | 1939-08-31 | Brix Hansen John | Kühlapparat. |
DE2549600C3 (de) * | 1975-11-05 | 1979-10-04 | Fryma-Maschinen Ag, Rheinfelden (Schweiz) | Wärmetauscher |
US5165469A (en) * | 1991-05-17 | 1992-11-24 | Smith Douglas W P | High viscous fluid heat exchanger |
-
2003
- 2003-01-07 WO PCT/CH2003/000003 patent/WO2003058147A1/de not_active Application Discontinuation
- 2003-01-07 EP EP03700003A patent/EP1466135B1/de not_active Expired - Lifetime
- 2003-01-07 AU AU2003200828A patent/AU2003200828A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2003058147A1 (de) | 2003-07-17 |
EP1466135A1 (de) | 2004-10-13 |
AU2003200828A1 (en) | 2003-07-24 |
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