DE4223005A1 - Regenerative heat-exchanger - has air-passage walls dividing ribs and slotted nozzles either side or rotor - Google Patents
Regenerative heat-exchanger - has air-passage walls dividing ribs and slotted nozzles either side or rotorInfo
- Publication number
- DE4223005A1 DE4223005A1 DE4223005A DE4223005A DE4223005A1 DE 4223005 A1 DE4223005 A1 DE 4223005A1 DE 4223005 A DE4223005 A DE 4223005A DE 4223005 A DE4223005 A DE 4223005A DE 4223005 A1 DE4223005 A1 DE 4223005A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- air
- heat exchanger
- exchanger according
- rotary heat
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1423—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
-
- 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
- B05B16/60—Ventilation arrangements specially adapted therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
-
- 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
- F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
- F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
- F28D19/041—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier with axial flow through the intermediate heat-transfer medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/1458—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators
- F24F2003/1464—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators using rotating regenerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1008—Rotary wheel comprising a by-pass channel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1012—Details of the casing or cover
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/104—Heat exchanger wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1068—Rotary wheel comprising one rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1084—Rotary wheel comprising two flow rotor segments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1096—Rotary wheel comprising sealing means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Supply (AREA)
Abstract
Description
Die Erfindung bezieht sich nach dem Oberbegriff des Patentanspruchs 1 auf einen Rotations-Wärmetauscher zur Rückgewinnung von Wärme und Feuchte aus der Ab luft von insbesondere Farb-Spritzkabinen bei der industriellen Lackiertechnik.The invention relates to the preamble of Claim 1 on a rotary heat exchanger for the recovery of heat and moisture from the Ab air from in particular paint spray booths at the industrial painting technology.
Derartige Rotations-Wärmetauscher sind bereis bekannt und übertragen die Wärme von dem warmen, aus den Kabinen kommenden Abluftstrom auf den kälteren der Frischluft. Dieses wird dabei durch eine drehende, wabenförmige Aluminiummasse erreicht, die die Wärme vom warmen Luftstrom aufnimmt und an den kälteren abgibt. Ein zusätzlicher Feuchteaustausch wird hierbei ebenfalls erzielt, wenn auf der Abluftseite Wasserdampf kondensiert und dieser auf der Zuluftseite wieder verdampft. Dieser Effekt kann durch eine hydroskopische Beschichtung der Rotorspeichermasse noch verstärkt werden.Such rotary heat exchangers are already known and transfer the heat from the warm, from the Exhaust air flow coming to the colder of the cabins Fresh air. This is done by a rotating, honeycomb shaped aluminum mass that reaches the heat from the warm air flow and to the colder delivers. An additional moisture exchange is hereby also achieved if water vapor on the exhaust air side condenses and this on the supply air side again evaporates. This effect can be seen through a hydroscopic Coating of the rotor storage mass reinforced will.
Da bei derartigen Anlagen im allgemeinen ein relativ großes Druckgefälle von der Abluftseite auf die Zuluft seite aufreten kann und Leckströme aus der Abluft in die Zuluft möglichst vermieden werden sollten, ist es neben der Rückgewinnung von möglichst viel Energie aus der Abluft die vorrangige Aufgabe der vorliegenden Erfindung, bei den hier zur Rede stehenden Anlagen geeignete Vorkehrungen zu treffen, um ein solches Überströmen der Abluft wirksam zu verhindern, also dem Zutritt von Luftverunreinigungen aus der Kabinenabluft über das Wärmerad in die zugeführte Frischluft mit geeigneten Mitteln und Maßnahmen zu begegnen. Eine weitere Teilaufgabe der vorliegenden Erfindung ist noch darin zu sehen, daß Mittel und Maßnahmen zur Abreinigung des Wärmerades von anhaf tenden Verschmutzungen aus der Kabinenabluft vorge sehen sind. Since in such systems in general a relative large pressure drop from the exhaust air side to the supply air side can occur and leakage currents from the exhaust air in the supply air should be avoided if possible, besides recovering as much as possible Energy from the exhaust air is the primary task of present invention, in the case here Appropriate arrangements to take a plant to effectively prevent such overflow of the exhaust air, thus the entry of air pollution from the Cabin exhaust air via the heat wheel into the supplied Fresh air with suitable means and measures to encounter. Another subtask of the present Invention can still be seen in the fact that means and Measures to clean the heat wheel from anhaf dirt from the cabin exhaust air are seen.
Ausgegangen zum Stand der Technik wird dabei beispiels weise von der DE-PS 1101 677, aus der bereits ein umlaufender Regenerativ-Luftvorwärmer bekannt ist, bei dem die Speichermasse in ihren Übergangszonen zwischen den beiden die gasförmigen Medien unterschied lichen Drucks führenden Kanälen stirnseitig durch Sektorplatten abgedeckt ist und bei dem jeweils in der Übergangszone ein Hilfskanal ohne Fördervorrichtung einen Sperrgasstrom vom Hauptkanal höheren Drucks zum niederdruckseitigen Ende des Leckspaltes führt, wobei der Sperrgaskanal geringen Strömungswiderstandes in den Leckspalt stark geneigt, und zwar entgegen der Leckstromrichtung an einer Stelle einmündet, an der der Druck infolge des Abfalls längs des Leck weges niedriger ist als im Kanal höheren Drucks.The state of the art is used as an example as from DE-PS 1101 677, from which already revolving regenerative air preheater is known, where the storage mass in their transition zones difference between the two the gaseous media channels leading to the pressure Sector plates is covered and in each case in the transition zone an auxiliary channel without conveyor a sealing gas flow from the main channel of higher pressure leads to the low-pressure end of the leakage gap, the sealing gas channel having low flow resistance strongly inclined in the leakage gap, to the contrary the leakage current direction opens at one point, at which the pressure due to the drop along the leak way is lower than in the channel of higher pressure.
Solche Luftvorwärmer fanden dabei bislang vor allem bei Großfeuerungsanlagen Anwendung, um mit Hilfe der heißen Rauchgase die Verbrennungsluft vorzuwärmen. Es liegt auf der Hand, daß eine einfache, rein hand werkliche Übertragung der bekannten Maßnahmen auf Anlagen der hier zur Rede stehenden Art nicht ohne erfinderisches Zutun möglich ist. So far, such air preheaters have mainly been found in large combustion plants application to help with to preheat the combustion air from the hot flue gases. It is obvious that a simple, pure hand manual transfer of the known measures Systems of the type in question here are not without inventive intervention is possible.
Gelöst wird die bei der vorliegenden Erfindung eingangs gestellte Aufgabe daher vor allem durch die im Patent anspruch 1 angegebenen speziellen baulichen Merkmale; die Unteransprüche beinhalten sinnvolle Weiterbil dungen und zusätzliche Maßnahmen zum Gegenstand des Hauptanspruchs.This is solved at the outset in the present invention task therefore primarily by the in the patent Claim 1 specified special structural features; the subclaims contain meaningful further training and additional measures on the subject of the Main claim.
Die Zeichnungen verdeutlichen in Verbindung mit der zugehörigen Beschreibung zusätzlich noch das Wesen der vorliegenden Erfindung. Es zeigen hierzu in weitestgehend schematischer Darstellung dieThe drawings illustrate in connection with the associated description additionally the essence of the present invention. It shows in largely schematic representation of the
Fig. 1 das gesamte Anlagen-System einer Spritz kabine in Seitenansicht, Fig. 1, the entire conditioning system of a spray booth in side view,
Fig. 2 in perspektivischer Darstellung das Wärme rad von der Abluft-/Zuluftseite aus gesehen; Figure 2 is a perspective view of the heat rad seen from the exhaust air / supply air side.
Fig. 3 desgleichen von der Fortluft-/Außenluft seite her sowie, Fig. 3 the like of the exhaust air / outside air side as well,
Fig. 4 bis 8 bauliche Einzelheiten der neuen Lösung. Fig. 4 to 8 structural details of the new solution.
In der Systemdarstellung gemäß Fig. 1 sowie den Fig. 2 und 3 ist zunächst dargestellt die Spritzkabine SP mit Zu- und Abluftkanal 2 und 3 sowie daran an schließend der Rotationswärmetauscher mit entsprechen der Speichermasse 1 und horizontal liegender Drehachse 12 sowie in gleicher Richtung verlaufenden Durchström kanälen 13 für die im Gegenstromprinzip bewegte Ab- und Zuluft AL und ZL.In the system diagram of FIG. 1 and FIGS. 2 and 3, first the spray booth SP with supply and exhaust air channels 2 and 3 as well as the fact of closing the rotary heat exchanger shown with in accordance with the storage mass 1 and horizontally positioned pivot axis 12 and extending in the same direction throughflow channels 13 for the exhaust and supply air AL and ZL moving in the counterflow principle.
Die Lösung der bei einer derartigen Einrichtung ein gangs gestellten Aufgabe sieht nun als erstes und wichtigstes Merkmal vor, je eine beidseits 1a und 1b des Wärmerades 1 bis auf einen verbleibenden engen Spalt S etwa mittig an dieses 1 heranverlaufende, vorzugsweise ebenfalls horizontal liegende Luftkanalwand 2 und 3, wobei der jeweilige Trennsteg an der Wandstirn fläche als mit einer Schlitzdüse 4a versehenen Düsen kanal 4 ausgebildet ist, über welchen auf beiden Seiten Frischluft mit hoher Geschwindigkeit gegen den Rotor des Wärmerades 1 geblasen wird.The solution to the task initially set in such a device now provides the first and most important feature, one on both sides 1 a and 1 b of the heat wheel 1, except for a remaining narrow gap S approximately centrally running towards this 1 , preferably also horizontally lying air duct wall 2 and 3 , the respective separating web on the wall end face as a slot nozzle 4 a provided nozzle channel 4 , through which fresh air is blown at high speed against the rotor of the heat wheel 1 on both sides.
Der sich dabei aufbauende Druck verhindert ein Über strömen von Abluft in die Zuluft. Sowohl der Auslaß querschnitt als auch der Abstand von Düse zu Rotor sind einstellbar und können somit den jeweiligen Betriebsgegebenheiten individuell angepaßt werden. The pressure that builds up prevents over flow of exhaust air into the supply air. Both the outlet cross section as well as the distance from nozzle to rotor are adjustable and can therefore the respective Operating conditions can be adjusted individually.
Dies bedeutet hierbei auch, daß die Spaltweite S zwischen Düsenkanal 4 und Speichermasse des Rotors 1 einstellbar und die Schlitzdüse 4a schräg in Richtung auf die Speichermasse 1 hin gerichtet ist.This also means that the gap width S between the nozzle channel 4 and the storage mass of the rotor 1 is adjustable and the slot nozzle 4 a is directed obliquely in the direction of the storage mass 1 .
Weiterhin als wichtig vorgesehen ist noch die Zuordnung eines Spülluftkanals 5 zum Durchblasen der Kanäle der Rotorspeichermasse 1 mit Frischluft, zum Verhin dern der Übertragung von Abluft, die durch die Rotor drehung in der Speichermasse 1 zwangsläufig mittrans portiert wird auf die Zuluftseite; diese Spülluft säubert somit die Rotormasse von der zwangsläufig mitrotierenden Abluft, bevor letztere in den Bereich der einströmenden Frischluft gelangt.Furthermore, the assignment of a scavenging air duct 5 for blowing through the ducts of the rotor storage mass 1 with fresh air, for preventing the transfer of exhaust air, which is inevitably carried along by the rotor rotation in the storage mass 1 , is also provided on the supply air side; this purging air thus cleans the rotor mass from the necessarily co-rotating exhaust air before the latter reaches the area of the incoming fresh air.
Die vorstehend beschriebene Ausführung zeichnet sich
zudem noch aus durch Zuordnung einer aus Führungs
schiene 7 und darauf verfahrbarem Schlitten 8 be
stehenden, zusätzlichen Abreinigungsvorrichtung 6
zumindest auf der Abluftseite AL des Wärmerades 1,
vorzugsweise jedoch ebenfalls beidseits 1a und 1b.
Im einzelnen und mit Bezug auf die Fig. 4 bis 8 ist
dabei folgende Konstruktion denkbar:
Ein Schlitten verfährt hierzu in Richtung "Rotorradius"
über einen Rotor. Dieser Schlitten trägt die Düse
für Heißwasser und Druckluft. Auf der gegenüber
liegenden Rotorseite fährt synchron ein Schlitten,
der das ausströmende Reinigungswasser in einem Trichter
auffängt. Die Reinigungsschlitten befinden sich in
ihren Parkpositionen am Rotorumfang. Nach erfolgtem
Startimpuls fahren die Schlitten in Richtung Rotormitte.
Die Verschmutzungen werden dabei mit Heißwasser aus
gespült. Gleichzeitig wird das im Rotor verbleibende
Restwasser mit Druckluft ausgeblasen.The embodiment described above is also characterized by the assignment of a guide rail 7 and sliding carriage 8 be standing there, additional cleaning device 6 at least on the exhaust side AL of the heat wheel 1 , but preferably also on both sides 1 a and 1 b. The following construction is conceivable in detail and with reference to FIGS. 4 to 8:
For this purpose, a slide moves in the "rotor radius" direction via a rotor. This slide carries the nozzle for hot water and compressed air. On the opposite side of the rotor, a sled drives synchronously, which collects the outflowing cleaning water in a funnel. The cleaning slides are in their parking positions on the circumference of the rotor. After the start pulse has been given, the slides move towards the center of the rotor. The dirt is rinsed out with hot water. At the same time, the residual water remaining in the rotor is blown out with compressed air.
Auf dem Rückweg von der Rotormitte zum Umfang erfolgt ein weiteres Ausblasen des Reinigungswassers mit Druckluft. Um eine lückenlose Abreinigung zu gewähr leisten, werden die Reinigungsschlitten vollautomatisch gesteuert. Das heißt, daß sie bei jeder Rotordrehung einen genau definierten Weg zurücklegen. Dieser ist von der Düse bestrichenen Fläche abhängig. Die Rotor drehzahl während der Reinigung wird so geregelt, daß der Rotor eine konstante, einstellbare Umfangs geschwindigkeit an der Reinigungsdüse fährt. Sämt liche Regelfunktionen der Abreinigung sind im Regel gerät AS 1 integriert.On the way back from the center of the rotor to the circumference, the cleaning water is blown out again with compressed air. In order to ensure complete cleaning, the cleaning sledges are controlled fully automatically. This means that they cover a precisely defined path each time the rotor rotates. This depends on the area covered by the nozzle. The rotor speed during cleaning is controlled so that the rotor runs a constant, adjustable circumferential speed at the cleaning nozzle. All control functions for cleaning are integrated in the AS 1 control unit.
Unerläßlich für eine sichere Funktion der erfindungs gemäßen Vorrichtung ist weiterhin die Minimierung des sog. Seitenschlags des umlaufenden Rotors 1 durch verstellbare Führungsbolzen 9 o. dgl. auf beiden Rotorseiten 1a und 1b und Zuordnung einer Umfangs dichtung 10 zwischen Rotor 1 und umgebenden Gehäuse G.Indispensable for reliable functioning of the device fiction, modern furthermore relates to the minimization of the so-called. Runout of the rotating rotor 1 by means of adjustable guide pins 9 o. The like. On both sides of the rotor 1 a and 1 b and assigning a perimeter seal 10 between the rotor 1 and the surrounding housing G .
In spezieller baulicher Ausgestaltung ist dabei gemäß Fig. 8 vorgesehen, daß der Rotor 1 außen einen glatten Profilring 11 trägt, gegen den die Umfangsdichtung 10 mit Federkraft P gedrückt wird. Die Dichtung 10 schleift also nicht auf der rauhen Oberfläche des Rotors 1. Letztlich ist es noch von Vorteil, wenn die Speicher masse 1 des aus Bahnmaterial gewickelten Rotors zur Erhöhung der mechanischen Festigkeit miteinander verklebt, der Rotor in Pendelkugellagern gelagert und der Rahmen des Rotors 1 aus Alu-Profil gefertigt ist.In special structural configuration, it is provided according to FIG. 8, the rotor 1 carries a smooth profile outside ring 11 is pressed against the peripheral seal 10 with spring force P. The seal 10 therefore does not rub on the rough surface of the rotor 1 . Ultimately, it is still advantageous if the storage mass 1 of the rotor wound from sheet material is bonded to one another to increase the mechanical strength, the rotor is mounted in self-aligning ball bearings and the frame of the rotor 1 is made of aluminum profile.
Zusammenfassend sei also nochmals hervorgehoben, daß im Gegensatz zum Stand der Technik bei der vorliegen den Erfindung die beidseitige Anordnung der Sperrluftdüsen 4a sowie der Abreinigungsvorrich tungen 6, 7, 8 zum Wärmerad erforderlich ist, um ei nerseits bei den relativ hohen Gebläse-Drücken, mit denen bei der Luftversorgung von Spritzkabinen gear beitet wird, das Überströmen der Luft von einer in die andere Kammer im Spaltbereich wirksam zu verhindern und zum anderen, um an der Ein- sowie Ausströmseite sich aus der Abluft an der Speichermasse des Wärme rades 1 außen ansetzende bzw. aufbauende Farbpartikel chen sicher mit der Abreinigungsvorrichtung mechanisch zu entfernen.In summary, it should be emphasized again that, in contrast to the prior art in the present invention, the arrangement of the sealing air nozzles 4 a on both sides and the cleaning devices 6 , 7 , 8 for the heat wheel is necessary in order to avoid the relatively high fan pressures, with which gear is being used in the air supply of spray booths, to effectively prevent the overflow of air from one chamber into the other in the gap area and, on the other hand, to prevent the storage air of the heat wheel 1 from attaching to the inflow and outflow side of the exhaust air or build-up paint particles can be removed mechanically with the cleaning device.
BezugsziffernverzeichnisList of reference numbers
1 Speichermasse, Wärmerad
1a Stirnseite
1b Stirnseite
2 Luftkanal (Zuluft)
2a Luftkanalwand (kabinenseitig)
3 Luftkanal (Abluft)
3a Luftkanalwand (kaminseitig)
4 Düsenkanal (Sperrluft)
4a Schlitzdüse
5 Spülluftkanal
6 Abreinigungsvorrichtung
7 Führungsschiene der Abreinigungsvorrichtung
8 Schlitten der Abreinigungsvorrichtung
9 Führungsbolzen
10 Umfangsdichtung
11 Profilring
12 Drehachse des Wärmerades
13 Durchströmkanal
AL Abluftseite
ZL Zuluft
S Spaltweite
P Federkraft
SP Spritzkasten
K Abluftkammern
G Gehäuse, Rahmen des Rotors 1 storage mass, heat wheel
1 a front side
1 b front
2 air duct (supply air)
2 a air duct wall (cabin side)
3 air duct (exhaust air)
3 a air duct wall (fireplace side)
4 nozzle channel (sealing air)
4 a slot nozzle
5 purge air duct
6 cleaning device
7 Guide rail of the cleaning device
8 carriage of the cleaning device
9 guide bolts
10 peripheral seal
11 profile ring
12 axis of rotation of the heating wheel
13 flow channel
AL exhaust air side
ZL supply air
S gap width
P spring force
SP spray box
K exhaust air chambers
G housing, frame of the rotor
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4223005A DE4223005A1 (en) | 1991-07-13 | 1992-07-13 | Regenerative heat-exchanger - has air-passage walls dividing ribs and slotted nozzles either side or rotor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4123294 | 1991-07-13 | ||
DE4223005A DE4223005A1 (en) | 1991-07-13 | 1992-07-13 | Regenerative heat-exchanger - has air-passage walls dividing ribs and slotted nozzles either side or rotor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4223005A1 true DE4223005A1 (en) | 1993-01-14 |
Family
ID=25905462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4223005A Withdrawn DE4223005A1 (en) | 1991-07-13 | 1992-07-13 | Regenerative heat-exchanger - has air-passage walls dividing ribs and slotted nozzles either side or rotor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4223005A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998015784A3 (en) * | 1996-10-08 | 2000-08-03 | Oleg Stolz | Regenerative heat exchanger |
DE10156226C1 (en) * | 2001-11-15 | 2003-03-20 | Eisenmann Kg Maschbau | Fluid-tight casing for e.g. industrial heat exchanger, comprises sidewalls installed in U-sections having a shorter inner limb |
EP2090375A1 (en) * | 2008-02-18 | 2009-08-19 | Technoplants S.r.l. | System for thermally controlling a booth |
EP3117906A1 (en) * | 2015-07-17 | 2017-01-18 | Zachodniopomorski Uniwersytet Technologiczny w Szczecinie | Spray booth with heat recovery |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE973548C (en) * | 1952-09-16 | 1960-03-24 | Babcock & Wilcox Dampfkessel W | Circulating regenerative preheater for gas, air or the like. |
DE2634009C2 (en) * | 1975-11-04 | 1984-11-22 | Davidson & Co. Ltd., Belfast | Adjustment device for a sealing device of a circulating regenerative heat exchanger |
-
1992
- 1992-07-13 DE DE4223005A patent/DE4223005A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE973548C (en) * | 1952-09-16 | 1960-03-24 | Babcock & Wilcox Dampfkessel W | Circulating regenerative preheater for gas, air or the like. |
DE2634009C2 (en) * | 1975-11-04 | 1984-11-22 | Davidson & Co. Ltd., Belfast | Adjustment device for a sealing device of a circulating regenerative heat exchanger |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998015784A3 (en) * | 1996-10-08 | 2000-08-03 | Oleg Stolz | Regenerative heat exchanger |
DE10156226C1 (en) * | 2001-11-15 | 2003-03-20 | Eisenmann Kg Maschbau | Fluid-tight casing for e.g. industrial heat exchanger, comprises sidewalls installed in U-sections having a shorter inner limb |
EP2090375A1 (en) * | 2008-02-18 | 2009-08-19 | Technoplants S.r.l. | System for thermally controlling a booth |
EP3117906A1 (en) * | 2015-07-17 | 2017-01-18 | Zachodniopomorski Uniwersytet Technologiczny w Szczecinie | Spray booth with heat recovery |
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