WO2008110319A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

Info

Publication number
WO2008110319A1
WO2008110319A1 PCT/EP2008/001878 EP2008001878W WO2008110319A1 WO 2008110319 A1 WO2008110319 A1 WO 2008110319A1 EP 2008001878 W EP2008001878 W EP 2008001878W WO 2008110319 A1 WO2008110319 A1 WO 2008110319A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
flow channel
scraper
heat exchange
exchanger according
Prior art date
Application number
PCT/EP2008/001878
Other languages
German (de)
English (en)
Inventor
Gerd Wurster
Original Assignee
Gerd Wurster
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gerd Wurster filed Critical Gerd Wurster
Publication of WO2008110319A1 publication Critical patent/WO2008110319A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/08—Non-rotary, e.g. reciprocated, appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/10—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed before the application

Definitions

  • the invention relates to a heat exchanger with a first flow channel for guiding a first air flow and with a second flow channel for guiding a second air flow, with a first heat exchange surface communicating with the first flow channel on a dirty side and with the second flow channel on a clean side in Connection stands.
  • Heat exchangers have been used in industry for decades in a wide variety of applications and are known in numerous designs in the prior art.
  • heat exchangers are to be used for contaminated exhaust air, such as those emitted by dryers in paint shops or powder coating plants, their use is extremely problematic.
  • heat exchangers for the exhaust air of dryers from paint shops or powder coating plants could not be used because the exhaust air is so polluted that the heat exchange surfaces become clogged within a very short time.
  • the deposits often occur at a rate of about 5 to 10 mm per week. These are usually very tough deposits with a consistency that is similar to that of honey.
  • the invention is therefore based on the object to provide a heat exchanger, even in heavily polluted exhaust air works reliably in long-term operation.
  • the heat exchanger should be suitable for the exhaust air from dryers in paint or powder coating systems.
  • a heat exchanger with a first flow channel for guiding a first fluid flow and with a second flow channel for guiding a second fluid flow, with a first heat exchange surface, which is in communication with the first flow channel on a dirty side and with the second flow channel a clean side is in communication, wherein a scraper is provided on the dirty side of the heat exchange surface, which is movable by means of a drive device for cleaning the dirty side of the heat exchange surface.
  • the object of the invention is completely solved in this way. Since the heat exchange surface on the dirty side on which the deposits are formed, can be cleaned by means of the scraper, deposits that occur during operation, can be eliminated constantly. In this way, a high efficiency of the heat exchanger is obtained even when operating with heavily polluted exhaust air.
  • the heat exchanger has a third flow channel for guiding a third fluid flow, with a second heat exchange surface, with the first flow channel on a dirty side in Connection is and is in communication with the third flow channel on a clean side, wherein a scraper is provided on the dirty side of the heat exchange surface, which is movable by means of a drive means for cleaning the dirty side of the Wärrn ⁇ Sfikiee.
  • the heat exchanger has a housing, of which the first flow channel is enclosed, and on which an inlet nozzle and an outlet for the first flow channel is provided.
  • the second flow channel with an inlet connection and an outlet connection can be arranged on a first side of the housing and the third flow channel with an inlet connection and an outlet connection can be arranged on a second side of the housing.
  • the second and third flow channels are preferably arranged substantially symmetrically with respect to the centrally arranged inlet connection and outlet connection of the first flow channel.
  • the first and the second flow channel and the first and the third flow channel are designed to flow in countercurrent principle.
  • the drive device has a circulating or reversing drive.
  • This may be, for example, a chain drive or a rope drive.
  • the scraper may, for example, have a scraper bar which is provided with brushes of a material which avoids the formation of sparks.
  • the heat exchanger has a stripping device for cleaning the scraper.
  • the heat exchanger on a heat exchange surface, which is provided with ribs.
  • the heat exchanger according to the invention is preferably suitable for the treatment of exhaust air from a painting installation or a powder coating installation, in particular for the treatment of exhaust air from dryers present therein. It is understood, however, that such a heat exchanger is basically suitable for all types of heavily polluted exhaust air streams, which is to be expected with a deposit on the heat exchange surfaces.
  • Fig. 1 is a side view of a heat exchanger according to the invention in a simplified representation
  • Fig. 2 is an enlarged partial cross-section through the heat exchanger of FIG. 1 in the region of the first heat exchange surface.
  • a heat exchanger according to the invention is shown schematically and generally designated by numeral 10.
  • the heat exchanger 10 has an elongated housing 12 from which a central inlet port 16 on the first side of the housing and a central outlet port 18 on an opposite side of the housing projecting, which connect a first flow channel 14 within the housing 12 with each other.
  • the inner volume of the housing 12 is divided by a substantially centered in the longitudinal direction of the housing 12 deflection surface 20 in a first, the inlet port 16 facing volume and in a second, the outlet port 18 facing volume.
  • a fluid flow which, as indicated by the arrow 56, enters the inlet port 16 is deflected on both sides in the direction of the arrows 60 and thus splits into an air flow through a first sub-channel 22 on one side of the heat exchanger 10 and a second air flow through a partial channel 24 on the opposite side of the heat exchanger 10.
  • At the axial ends of these flows are redirected in the direction of the arrows 62 around the deflection surface 20 around and pass through associated sub-channels 26, 28 back to the center and, as indicated by the arrows 64 again merged in the outlet port 18, from which the exhaust air finally, as indicated by the arrow 58, exits.
  • a second flow channel 30 is formed, which has an inlet port 32 and an outlet 34.
  • the second flow channel 30 is connected via a heat exchange surface 36 with the sub-channel 26 of the first flow channel 14 in connection.
  • the first flow channel 14 is provided for guiding exhaust air, while the second flow channel 30 is provided for guiding clean air.
  • the heat exchanger 36 thus has a dirty side which communicates exclusively with the first flow channel 14 and a clean side which communicates exclusively with the second flow channel 30.
  • a third flow channel 38 is arranged with an inlet port 40 and an outlet port 42 which communicates with a second heat exchange surface 44.
  • the third flow channel 38 may be designed mirror-symmetrically to a center line 19 defined by the inlet connection 16 and the outlet connection 18 of the first flow channel 14.
  • the second heat exchanger 44 in turn has a dirty side, which communicates exclusively with the first flow channel 14 in the region of the sub-channel 28, as well as a clean side which communicates exclusively with the third flow channel 38.
  • a scraper 48 is provided which can be moved by means of a drive device 46 along the surfaces of the heat exchangers 36 and 44 on the dirty side is.
  • the drive device 46 may be, for example, a chain drive, by means of which a circulating or a reversing movement is performed.
  • the interaction of the scraper 48 with the heat exchanger 36 is shown by way of example in FIG. 2.
  • the heat exchanger 36 has heat exchange surfaces 76 on the clean side, which protrude like a tine, and corresponding heat exchange surfaces 78 on the dirty side.
  • the scraper 48 now has a correspondingly shaped surface, which is adapted with a small, but a sufficient distance of the surface contour of the heat exchange surfaces 78 on the dirty side.
  • the scraper 48 may be a steel scraper blade extending across the entire width of the heat exchange surface 36 having a contour corresponding to the heat exchange surfaces 78 on which are provided steel brushes which are formed to scrape deposits deposited on the surface of the heat exchange surfaces 78 on the dirty side.
  • the scraper 48 is moved by means of the drive device 46 along the surface of the heat exchanger 36 when a cleaning is necessary. Depending on the contamination, the scraper 48 can also be repeatedly moved in the longitudinal direction of the heat exchanger 36 back and forth. As long as the scraper 48 is in the region of the first heat exchanger 36, the efficiency of the heat exchanger 36 decreases because it is only flowed through by a smaller part of the exhaust air flow in the first flow channel 14. During this time, most of the exhaust air flows. through the second heat exchanger 44, dei via the third flow channel 38 is used for energy.
  • the scraper 48 is simply moved by means of the drive means 46 to the second heat exchanger 44 to clean it in a corresponding manner.
  • the second flow channel 30 is used to heat a clean air flow, which enters via the inlet port 32 in the direction of the arrow 68 and exits via the outlet port 34 in the direction of the arrow 70.
  • the heat exchanger 10 can be cleaned practically without interruption during operation either in the region of the second flow channel 30 or in the region of the third flow channel 38, while the respective other flow channel is used more strongly for energy absorption.
  • a scraper 50 is provided, with which the scraper 48 can be cleaned from time to time to remove scraped material into a connected collecting container 54.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un échangeur de chaleur comprenant un premier conduit d'écoulement (14) servant à conduire un premier flux de fluide, un deuxième conduit d'écoulement servant à conduire un deuxième flux de fluide, ainsi qu'une première surface d'échange thermique (36) reliée au premier conduit d'écoulement (14) par sa face encrassée et au deuxième conduit d'écoulement (30) par sa face propre. Selon l'invention, un racloir (48) placé sur la face encrassée de la surface d'échange thermique (36) peut être mis en mouvement par un dispositif d'entraînement (46) afin de nettoyer la face encrassée de la surface d'échange thermique (36).
PCT/EP2008/001878 2007-03-09 2008-03-10 Échangeur de chaleur WO2008110319A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007012254.5 2007-03-09
DE202007005996U DE202007005996U1 (de) 2007-03-09 2007-03-09 Wärmetauscher

Publications (1)

Publication Number Publication Date
WO2008110319A1 true WO2008110319A1 (fr) 2008-09-18

Family

ID=39869764

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/001878 WO2008110319A1 (fr) 2007-03-09 2008-03-10 Échangeur de chaleur

Country Status (2)

Country Link
DE (2) DE102007012254A1 (fr)
WO (1) WO2008110319A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112495669A (zh) * 2020-11-26 2021-03-16 安徽绿风环保节能材料有限公司 一种实木门加工用漆面涂抹装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107641949B (zh) * 2017-09-05 2019-10-22 绍兴思安阻燃科技有限公司 阻燃整理设备

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR656303A (fr) * 1927-06-22 1929-05-06 Howden James & Co Ltd Perfectionnements aux réchauffeurs d'air
US2152546A (en) * 1937-05-01 1939-03-28 William H Fitch Recuperator for melting furnaces
US3406741A (en) * 1966-11-14 1968-10-22 John M. Leach Process and apparatus for treating liquids
US3927715A (en) * 1974-08-16 1975-12-23 Alder F Castanoli Multiple deck drying apparatus
DE2936176A1 (de) * 1979-09-07 1981-03-26 Gruber & Weber, 76593 Gernsbach Waermetauscher zur anordnung in stroemenden medien und gasen mit sich abscheidenden inhaltsstoffen
DE8124822U1 (de) * 1981-08-25 1982-01-14 GEA Luftkühlergesellschaft Happel GmbH & Co KG, 4630 Bochum Reinigungsvorrichtung fuer einen waermeaustauscher
WO1983004432A1 (fr) * 1982-06-10 1983-12-22 Price Edwin A Echangeur thermique du type a ailettes
DD276610A3 (de) * 1988-06-20 1990-03-07 Kali Veb K Verfahren und vorrichtung zur krustenentfernung von rohraussenwandungen mittels oszillierender schabeeinrichtungen
DE102005041213A1 (de) * 2005-08-31 2007-03-01 WOBEK Oberflächenschutz GmbH Verfahren und Anordnung zum Pulverbeschichten von metallischen Werkstücken

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR656303A (fr) * 1927-06-22 1929-05-06 Howden James & Co Ltd Perfectionnements aux réchauffeurs d'air
US2152546A (en) * 1937-05-01 1939-03-28 William H Fitch Recuperator for melting furnaces
US3406741A (en) * 1966-11-14 1968-10-22 John M. Leach Process and apparatus for treating liquids
US3927715A (en) * 1974-08-16 1975-12-23 Alder F Castanoli Multiple deck drying apparatus
DE2936176A1 (de) * 1979-09-07 1981-03-26 Gruber & Weber, 76593 Gernsbach Waermetauscher zur anordnung in stroemenden medien und gasen mit sich abscheidenden inhaltsstoffen
DE8124822U1 (de) * 1981-08-25 1982-01-14 GEA Luftkühlergesellschaft Happel GmbH & Co KG, 4630 Bochum Reinigungsvorrichtung fuer einen waermeaustauscher
WO1983004432A1 (fr) * 1982-06-10 1983-12-22 Price Edwin A Echangeur thermique du type a ailettes
DD276610A3 (de) * 1988-06-20 1990-03-07 Kali Veb K Verfahren und vorrichtung zur krustenentfernung von rohraussenwandungen mittels oszillierender schabeeinrichtungen
DE102005041213A1 (de) * 2005-08-31 2007-03-01 WOBEK Oberflächenschutz GmbH Verfahren und Anordnung zum Pulverbeschichten von metallischen Werkstücken

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112495669A (zh) * 2020-11-26 2021-03-16 安徽绿风环保节能材料有限公司 一种实木门加工用漆面涂抹装置

Also Published As

Publication number Publication date
DE102007012254A1 (de) 2008-09-18
DE202007005996U1 (de) 2008-07-17

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