EP2471339A2 - Wärmeübertrager - Google Patents
WärmeübertragerInfo
- Publication number
- EP2471339A2 EP2471339A2 EP10754441A EP10754441A EP2471339A2 EP 2471339 A2 EP2471339 A2 EP 2471339A2 EP 10754441 A EP10754441 A EP 10754441A EP 10754441 A EP10754441 A EP 10754441A EP 2471339 A2 EP2471339 A2 EP 2471339A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- flow channel
- heating
- exchanger according
- profile body
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/78—Heating arrangements specially adapted for immersion heating
- H05B3/82—Fixedly-mounted immersion heaters
-
- 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
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/121—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using electric energy supply
Definitions
- the invention relates to a heat exchanger for heating flowable media, in particular highly viscous materials, coating materials or the like, comprising a profile body with at least one flow passage section of a flow channel of the heat exchanger and a heating device arranged in the profile body, wherein the heating device has at least two electrical heating elements.
- Heat exchangers of this type are well known and are regularly used in the manner of a continuous flow heater for heating coating materials in the field of spray technology.
- the coating material is thereby conveyed by means of a pump through the flow channel of the heat exchanger, with heating of the coating material taking place by contact with heat exchanger surfaces within the flow channel.
- electrical heating elements are used regularly, which are arranged in a body of the heat exchanger forming the flow channel at least in sections. That or the
- Heating elements must then be arranged in the body so that a uniform heating of the flow channel takes place.
- the disadvantage here is that the heat transfer from the heating elements to the coating material takes place only indirectly, and first the body formed of metal has to be heated.
- embodiments of heat exchangers are known in which a heating element is arranged directly in the flow channel. Although a rapid and effective heating of the coating material is possible here, there is the risk of overheating of the coating material in the case of the comparatively small heat exchanger surface of the heating element. Also, then the coating material can easily caking or deposit on a Schuelement Diagram, which in turn can lead to a blockage of the flow channel.
- a cleaning of the flow channel is often necessary, for example, when changing the coating materials in a blockage or after completion of a coating process, the heat exchanger and in particular the flow channel is then regularly cumbersome disassembled or difficult to clean. This is primarily the case with the heat exchangers known from the prior art, since the flow channel in the body forms kinks or bends, which are difficult to achieve with a cleaning tool or which require a time-consuming disassembly of the heat exchanger.
- the present invention is therefore based on the object to propose a heat exchanger, which has a simple and compact, easy-to-clean construction and yet allows improved heat transfer.
- the heat exchanger according to the invention for heating flowable media, in particular highly viscous materials, Be Anlagenungsmateria- or the like, comprising a profile body with at least one flow passage portion of a flow channel of the heat exchanger and arranged in the profile body heater, wherein the heater has at least two electrical heating elements, wherein a first heating element in a heating element receptacle formed in the profile body is arranged, and a second heating element is arranged in a sleeve element of the heating device, wherein the sleeve element is arranged in the flow passage section formed in the profile body, such that the heating elements are sealed off from the flow channel.
- the heating of the Profilköpers with a heating element and the use of the likewise heated sleeve member in the flow passage section allows a particularly effective heat transfer to the flowable medium, since the effectively heated heat exchanger surfaces are relatively large. So gets the flowable
- the flow channel section is formed by a profile body which is geometrically uniform and therefore easy to clean.
- a profile body has none Arches or breakthroughs in which possible deposits would be awkward to remove and is also easy to manufacture and available in any length. Due to the effective heating of the flow channel of the heat exchanger can be made relatively short, without a heating element comes into direct contact with the medium. Also, it can hardly come to a local overheating of the medium in the flow channel section due to the thus formed, uniform heat distribution over the heat exchanger surfaces. The associated negative effects are avoided in particular by the fact that the heating elements can not come into contact with the medium.
- the heat exchanger may comprise a plurality of profile bodies arranged in parallel.
- a flow rate increased or alternatively a flow channel section can be extended.
- the heat exchanger can then be designed in particular so that a modular construction of the heat exchanger is possible with a number of profile bodies suitable for the respective application. An adaptation of the heat exchanger to specific customer requirements or requirements is thus easily possible without major manufacturing effort.
- the heat exchanger may further comprise a cover element and a bottom element, which are each arranged at profile ends of the profile body.
- a cover element and the floor element for example, a plurality of profiled bodies can be held between the cover element and the floor element.
- the lid member and the bottom member relative to the profile ends be sealed so that the flowable medium can not escape from the heat exchanger in an undesirable manner.
- connecting channels of the flow channel can be formed in the cover element and / or in the base element.
- the connection channels then do not have to be arranged in one or more profile bodies, but can be easily, depending on the application requirement of the heat exchanger, arranged on the aforementioned elements.
- a plurality of connection channels may be provided on different sides of the cover element and / or the floor element for optional use. The unused connection channels can then be closed, for example with a screw.
- At least one connecting channel for connecting flow channel sections is formed in the cover element and / or in the bottom element. Several flow channel sections can thus be connected in series one behind the other. The number of
- Connecting channels may vary depending on the number of profile bodies used. For the formation of heat exchangers with different heat outputs, therefore, it requires an exchange of cover and / or floor elements with the corresponding number of similar profile body alone.
- the sleeve element surface as well as the flow channel inner surface is easily accessible for cleaning.
- the first heating element which is arranged in the Schuelementing of the profile body, then also be connected to the cover member in a suitable manner.
- the heat exchanger can be produced particularly simply if the flow channel section and the heating element receptacle are formed as through-holes in the profile element in the longitudinal direction of the profile element.
- the sleeve member may form a polygonal cross-section.
- a heat transfer surface or sleeve member surface can be further increased.
- an outer diameter of the sleeve element essentially corresponds to an inner diameter of the flow channel section.
- a flow channel cross-section is then formed solely by the annular cross-sectional space between the flow channel inner surface and sleeve member surface. So can also between the sleeve member and the profile body a
- the heat exchanger may have heating elements in a ratio of two second heating elements to a first heating element.
- connection device for connecting the heating elements on the cover element.
- the connection device may be an environmentally sealed housing with means for Subdistribution for the electrical heating elements and control devices include.
- At least one temperature sensor can be arranged in the flow channel.
- a plurality of temperature sensors may be provided to determine a temperature difference along the flow channel.
- a temperature control can be carried out on the basis of measured values of the temperature sensor with a PLC control.
- the flow channel itself may be formed meander-shaped, for example by flow channel sections arranged in series one behind the other, which are connected via connecting channels.
- a compact design of a heat exchanger can be formed in a particularly simple manner.
- the heat exchanger can have an insulation device which minimizes possible heat losses to an environment.
- the isolation device can protect operating personnel from possible burns.
- Fig. 1 A first perspective view of a heat exchanger
- 2 shows a second perspective view of the heat exchanger
- 3 shows a cross-sectional view of the heat exchanger in a perspective view
- 4 shows a longitudinal sectional view of the heat exchanger in a perspective view
- 5 shows a longitudinal sectional view of the heat exchanger in a perspective view
- 6 shows a sectional longitudinal view of the heat exchanger in a perspective view.
- FIGS. 1 to 6 shows a heat exchanger 10 in different, perspective representations and sections.
- the heat exchanger comprises two profile bodies 1 1 and 12, which form flow channel sections 13 and 14 or 15 and 16 in the manner of a through-bore.
- sleeve elements 17 are arranged in the flow channel sections, which have a star-shaped profile cross section 18, so that between a flow channel inner surface 19 and a sleeve member surface 20, a plurality of sub-channels 21 are formed.
- the heat exchanger 10 comprises first heating elements 22, which are arranged in a heating element receptacle 23 formed in the profile body 11 or 12, which is constructed in the manner of a through-bore.
- second heating elements 24 are arranged in also formed as a through hole heating element receptacles 25.
- the first heating elements 22 and second heating elements 24 are each arranged in the Schuelementamn 23 and 25, that a touch contact for a particularly good heat transfer between the first heating elements 22 and the profile bodies 1 1 and 12 and between the second heating elements 24 and the sleeve elements 17 exists.
- a sealing screw 27 is screwed into the sleeve member 17 at a lower end 26 of the sleeve member 17 respectively.
- the heat exchanger 10 comprises a cover element 28 and a bottom element 29, which are arranged on profile ends 30 to 33 of the profile body 1 1 and 12 and are screwed firmly to them by means of screws 34.
- the bottom member 29 further two connecting channels 35 and 36 are formed in the manner of a transverse bore and each closed with a screw 37.
- the connecting channel 35 connects the flow channel sections 13 and 15 or the connecting channel 36, the flow channel sections 14 and 16.
- a connecting channel 38 is also provided with a screw 37 which connects the flow channel sections 13 and 14.
- Port channels 39 and 40 formed in the manner of a bore, which are connected to the flow channel sections 15 and 16, respectively.
- connection channels 39 and 40 are screwed connection fittings 41 for connection of the heat exchanger 10 to a supply or discharge of a spray device not shown here.
- seals 43 are arranged on the profile ends 30 to 33. Further, the sleeve members 17 are provided at their upper ends 44 with a circumferential groove 45 and a thread 46. The sleeve members 17 are screwed firmly by means of the thread 46 in the cover member 28.
- the circumferential groove 45 essentially serves to improve the distribution of the medium to be heated.
- connection device 47 with a connection housing 48 and a connection terminal 49 is furthermore arranged on the cover element 28.
- the connection terminal 49 essentially serves for the electrical connection of the first heating elements 22 and second heating elements 24 to a central power supply.
- the connection housing 48 is made of a housing ring 50 are formed with a housing cover 51, which are connected to the cover member 28 so that a sealed connection space 52 is formed.
- a temperature sensor 53 and in the profile body 12 or in the flow channel section 15, a temperature sensor 54 is arranged in the connection channel 39 or in the cover element 28 . Both temperature sensors 53 and 54 are connected to a PLC, not shown here for controlling the temperature.
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)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009038762A DE102009038762B4 (de) | 2009-08-27 | 2009-08-27 | Wärmeübertrager |
PCT/EP2010/062167 WO2011023636A2 (de) | 2009-08-27 | 2010-08-20 | Wärmeübertrager |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2471339A2 true EP2471339A2 (de) | 2012-07-04 |
EP2471339B1 EP2471339B1 (de) | 2016-10-05 |
Family
ID=43524999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10754441.3A Not-in-force EP2471339B1 (de) | 2009-08-27 | 2010-08-20 | Wärmeübertrager |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120321285A1 (de) |
EP (1) | EP2471339B1 (de) |
DE (1) | DE102009038762B4 (de) |
ES (1) | ES2609425T3 (de) |
WO (1) | WO2011023636A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9156046B2 (en) * | 2013-01-25 | 2015-10-13 | Wagner Spray Tech Corporation | Plural component system heater |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2156029A1 (de) * | 1971-11-11 | 1973-05-17 | Wagner Fa Ing Josef | Vorrichtung zum erhitzen von fluessigkeiten |
US3968346A (en) * | 1973-06-01 | 1976-07-06 | Cooksley Ralph D | Method and apparatus for electrically heating a fluid |
US3999190A (en) * | 1975-10-22 | 1976-12-21 | Burroughs Corporation | Temperature control system for ink jet printer |
US4835365A (en) * | 1986-09-29 | 1989-05-30 | Etheridge David R | De-ionized fluid heater and control system |
US4808793A (en) * | 1986-11-13 | 1989-02-28 | Everhot Corporation | Tankless electric water heater with instantaneous hot water output |
DE3816335A1 (de) * | 1988-05-13 | 1989-11-23 | Wagner Wilhelm Wiwa | Materialdurchflusserhitzer |
FR2661488A1 (fr) * | 1990-04-25 | 1991-10-31 | Vulcanic Sa | Echangeur de chaleur tridimensionnel a alimentation electrique. |
DE4300163C1 (de) * | 1993-01-07 | 1994-03-17 | Boellhoff Verfahrenstech | Elektrischer Durchlauferhitzer |
US5506931A (en) * | 1994-03-09 | 1996-04-09 | The Commonwealth Of Puerto Rico | Immersion type water heating element assembly with permanently wired electrical supply |
DE19524683A1 (de) * | 1995-07-06 | 1997-01-09 | Polyplan Gmbh Polyurethan Masc | Durchlauferhitzer |
US6240250B1 (en) * | 1999-06-10 | 2001-05-29 | Byron Blanco, Jr. | Compact in-line tankless double element water heater |
JP2003148806A (ja) * | 2001-11-12 | 2003-05-21 | Sakaguchi Dennetsu Kk | 流体加熱ヒーター |
US20060222351A1 (en) * | 2003-02-12 | 2006-10-05 | Cem Cezayirli | Pre-heating contiguous in-line water heater |
RU2359181C2 (ru) * | 2004-02-05 | 2009-06-20 | Грейко Миннесота Инк. | Нагреватель для текучей среды и способ ее нагрева |
US6909843B1 (en) * | 2004-02-24 | 2005-06-21 | Eemax Incorporated | Electric tankless water heater |
US7046922B1 (en) * | 2005-03-15 | 2006-05-16 | Ion Tankless, Inc. | Modular tankless water heater |
DE202005011686U1 (de) * | 2005-07-26 | 2005-10-06 | Türk & Hillinger GmbH | Verdichtete Heizpatrone |
DE202005017693U1 (de) * | 2005-11-11 | 2006-02-23 | Ko, Hao-Chih, Linkou Shiang | Heizgerätstruktur |
US7711251B2 (en) * | 2006-12-27 | 2010-05-04 | Barkey Gmbh & Co. Kg | Device for temperature controlled heating of a fluid line |
WO2008131182A1 (en) * | 2007-04-20 | 2008-10-30 | Shell Oil Company | Controlling and assessing pressure conditions during treatment of tar sands formations |
-
2009
- 2009-08-27 DE DE102009038762A patent/DE102009038762B4/de not_active Expired - Fee Related
-
2010
- 2010-08-20 ES ES10754441.3T patent/ES2609425T3/es active Active
- 2010-08-20 EP EP10754441.3A patent/EP2471339B1/de not_active Not-in-force
- 2010-08-20 US US13/392,178 patent/US20120321285A1/en not_active Abandoned
- 2010-08-20 WO PCT/EP2010/062167 patent/WO2011023636A2/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2011023636A2 * |
Also Published As
Publication number | Publication date |
---|---|
US20120321285A1 (en) | 2012-12-20 |
WO2011023636A3 (de) | 2012-03-29 |
DE102009038762A1 (de) | 2011-03-03 |
ES2609425T3 (es) | 2017-04-20 |
DE102009038762B4 (de) | 2011-09-01 |
WO2011023636A2 (de) | 2011-03-03 |
EP2471339B1 (de) | 2016-10-05 |
DE102009038762A8 (de) | 2011-06-01 |
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