EP0840073B1 - Warmluftheizeinrichtung - Google Patents
Warmluftheizeinrichtung Download PDFInfo
- Publication number
- EP0840073B1 EP0840073B1 EP97810758A EP97810758A EP0840073B1 EP 0840073 B1 EP0840073 B1 EP 0840073B1 EP 97810758 A EP97810758 A EP 97810758A EP 97810758 A EP97810758 A EP 97810758A EP 0840073 B1 EP0840073 B1 EP 0840073B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- fan
- elements
- shut
- chamber
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/059—Roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- 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
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
Definitions
- the invention relates to a warm air heater according to the Preamble of claim 1.
- the warm air can either be caused by a chimney-like one Generate heating system and / or by an electric heater.
- the Warm air then circulates over heat storage stones.
- the input temperature should be relatively high via storage stones adequate heat radiation along the entire circulation path to get the warm air.
- the air circulation must pass through a Fan to be supported, which is to be arranged in a heat chamber. As the temperature of the hot air to be circulated increases Difficulty with the bearings of the fan because of the temperature which endure the bearings in continuous operation without damage.
- the fan is arranged such that it generates an air flow during operation generated in the room that surrounds the heating element.
- the cooling effect on the fan motor and the Ball bearing is insufficient because the heated air flow directly on the motor and is guided past the ball bearings.
- the object of the invention is to be achieved in a warm air heating system the bearings of a fan arranged in a heat chamber to protect against overheating.
- cooling air lines By supplying cooling air to the fan bearings via cooling air lines manages the bearings, especially ball bearings, on one maintain the permissible temperature and overheat it avoid. This is done through air ducts that come in with the fresh air Connection are, with the suction of the cooling air directly through the radial fan takes place, so that no additional fan is required is.
- shut-off devices optionally Recirculated air, fresh air and indoor air supply or switched to storage mode can be.
- the generation of warm air can either be by a fireplace, for example of the type shown in Fig. 3 or by a Electric heating. It is also possible to combine the two types of heating to combine, so that, for example, in the event of a longer absence the electric heater is switched on manually or automatically as required can be.
- a pre-heating chamber is located on a base box or base 7 7 or overpressure chamber in which a ventilation box 21 is built into it.
- the warm air to be circulated is here fireplace, not shown, for example a natural stone oven, warmed, which housed in a remote housing is.
- a fan designed as a radial fan 24 - also a radial fan called - is used for closed circulation of warm air and is located inside a heat chamber 20.
- the variable-speed electric drive motor 22 - at most together with control electronics - Is arranged outside the heat chamber 20.
- the motor 22 is outside of a casing 19 surrounded with openings for access to room air.
- the two lateral bearings 50, 51 of the fan 24 are preferably ball bearings, the resiliently supported on a housing surrounding the fan impeller or are hung.
- the fan housing is one after Provide exit opening facing above.
- the cooling of the ball bearings 50.51 takes place by supplying cooling air such as this is indicated by arrows in Fig. 1.
- the cooling air for the bearing 50 is fed through a channel 54 which is between the radial fan and the housing 19 is located. In Fig. 2, this channel is the For the sake of clarity, partially opened.
- a hose or pipeline 60 is provided, which starts from the housing 19 which surrounds the motor 22.
- the cooling air could instead of from space 23 also from anywhere in the area be sucked in.
- the cooling air is then turned of the fan impeller 24 by its axially extending, inclined blades spaced from one another in the circumferential direction 29 is transported radially outwards, where it finds itself with the warm air in the heating chamber 20 mixes.
- the cooling air for the ball bearings is thus from Fan impeller 24 is sucked in without an additional fan or Like. is necessary.
- the cooling air causes the temperature of the bearings be kept at a temperature permissible for continuous operation can.
- the warm air is circulated by the radial fan 24 by a Spigot 25 discharged upwards and then to the storage stones passed, as explained below with reference to FIGS. 2 and 3 becomes.
- the embodiment shown in Fig. 2 relates to an electric heater, in which the heat by a resistance heater, not shown is produced.
- the structure is similar to that in Fig. 1, wherein same reference numerals mean same parts.
- the housing 19 stands for Cooling of the bearings 50, 51 in connection with the room air.
- the cooling channel 54 is shown partially open to make the drive shaft 56 visible.
- the drive motor 22 together with any associated electronics is from the heat chamber 20 through a heat insulating partition 69 separated.
- the combustion chamber 4 with grate 5 is through a movable viewing window 3 lockable. From the combustion chamber 4 leads in the usual way a flue gas pipe 6 in a chimney. Located above the combustion chamber 4 a conventional heat exchanger 8, which is heated by the flue gases is and gives off heat to the circulating air, which circulates via the tube 10 Emits air. The warm air passes from this pipe section 10 on upper end of the housing through lines 12 via an inlet connector 9 Storage stones 12. These storage stones 12 are hollow and preferably contain baffles 14 to create turbulence. The Outlet 16 of the storage stones 12 stands for the return air via a line with a pipe stub 18 in the base 2 in flow connection. Thereby the warm air can move in a closed circulating air system.
- Fig. 4 shows a horizontal section through the base 2 of a heating device 3 with the heat chamber 20 with a mixing room 17 is combined.
- the heat chamber 20 is the through the radial fan 24 driven by the motor 22.
- the two pairs of end flaps 30, 31 and 36, 37 are via holders 39, 40 with a common actuating rod 42 connected.
- actuating rod 42 One engages in this actuating rod 42 Pivot 44 a pivotable lever 46, which - according to FIG. 5 - via further linkage 48 connected to an outwardly projecting hand lever 49 is.
- the lever movement is thus a multiple translation on the operating rod 42 transferred.
- the extreme locations are either the openings 26, 28 closed by the flaps 30, 31 and at the same time the Openings 32, 34 opened by the flaps 36, 37 and vice versa.
- the Bearing 50, 51 of the fan 24 in the heat chamber 20 fresh air the fresh air inlet channel 54 supplied. This enables the temperature cool the bearings to such an extent that the bearings - preferably ball bearings - take no damage, even if the temperature in the heating chamber 20 is relatively high.
- the flaps 36, 37 are opened, fish air and Indoor air via the sockets 53 and 66 in the combined heat and Mixing chamber 20, 17 and then flows into the driven by the fan 24 Outlet pipe 64 (Fig. 3). From there, the warm air flows openly into the one to be heated Rooms.
- the fresh air can be connected via connections 53/66 or 18/62 become.
- connections 53/66 the flaps 36, 37 are closed and at the same time the Connections 18/62 from and to the storage stones open, so that one internal circuit (circulating air) via the storage stones 12 forms.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Rolling Contact Bearings (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
- Drying Of Solid Materials (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Amplifiers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
- Fig.1
- eine schematische Darstellung der Wärmekammer mit Kühlluftführung für den Radial-Ventilator für eine Heizeinrichtung mit geschlossenem Umluft-System
- Fig. 2
- eine perspektivische Darstellung - teilweise im Schnitt - der Wärmekammer, des Ventilators und der Kühlluftführung zu den Ventilator-Lagern, wobei diese Ausgestaltung vorwiegend für Elektroheizungen bestimmt ist
- Fig. 3
- eine schematische Darstellung der Warmluftführung in einer Cheminée-Heizung und Wärmespeichersteinen
- Fig. 4
- einen Horizontalschnitt durch die Wärme- und Mischkammer im Cheminée-Fuss mit Klappen-Vorrichtung
- Fig. 5
- eine Ansicht in Richtung des Pfeiles A in Fig. 4 mit den Betätigungsmitteln für die Klappen.
Claims (5)
- Warmluftheizeinrichtung mit einer Wärmequelle, mit einem sich in einer Wärmekammer befindlichen, der Umwälzung der Warmluft dienenden Ventilator (37), wobei der Ventilator (37) ein Radial-Ventilator ist, dessen Antriebsmotor (38) ausserhalb der als Ueberdruck-Kammer ausgebildeten Wärmekammer angeordnet ist, zur Kühlung der Lager der Ventilator eine Luft-Zirkulation bewirkt, dadurch gekennzeichnet, dass Kühlluftleitungen (54, 60) zur Kühlung der Lager (50, 51) des RadialVentilators (24) vorhanden sind, welche die Wärmekammer (20) durchdringen und der Antriebsmotor (22) sich in einem mit der Frischluft in Verbindung stehenden, von einer Verschalung (19) umgebenden Raum befindet, von dem die Kühlluftleitungen (54, 60) abgehen, wobei das Radial-Ventilator-Laufrad die Zirkulation der Kühlluft bewirkt.
- Warmluftheizeinrichtung, insbesondere nach Anspruch 1, mit einer Brennkammer mit Rauchabzug und mit einem Wärmetauscher zur Erzeugung von Warmluft, mit einer in einem Sockel angeordneten Frischluftund Umluftleitung sowie mit diesen Leitungen zugeordnete Absperrorgane und mit einem im Sockel befindlichen Ventilator, dadurch gekennzeichnet, dass die Wärmekammer (20) mit einem Mischraum (17) kombiniert ist, der lagergekühlte Radial-Ventilator (24) sich in der Wärmekammer (20) befindet, dem Mischraum (17) Absperrorgange (30, 31) zugeordnet sind, mit denen wahlweise eine Umluftzirkulation über Speichersteine (12) oder ein Warmluftaustritt (64) in Wohnräume stattfindet.
- Warmluftheizeinrichtung nach Anspruch 2, dadurch gekennzeichnet, dass zwei Absperrorganpaare (30, 31; 36, 37) vorhanden sind, die mit gemeinsamen Betätigungsorganen (42) zusammenwirken, derart, dass wenn das eine Absperrorganpaar geschlossen ist, das andere Absperrorganpaar offen ist und umgekehrt.
- Warmluftheizeinrichtung nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass das ein erstes Absperrorganpaar (30,31) den Umluft-Ein- und Auslassöffnungen (26,28) der Umluft und das zweite Absperrorganpaar (36, 37) den Raumluft- und Frischluft-Oeffnungen (32, 34) zugeordnet ist.
- Warmluftheizeinrichtung nach Anspruch 4, dadurch gekennzeichnet, dass für die Betätigung der Absperrorgane (30, 31, 36, 37) ein auf die Aussenseite geführter Handhebel (49) vorhanden ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH270996 | 1996-11-01 | ||
CH2709/96 | 1996-11-01 | ||
CH270996 | 1996-11-01 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0840073A2 EP0840073A2 (de) | 1998-05-06 |
EP0840073A3 EP0840073A3 (de) | 1999-10-13 |
EP0840073B1 true EP0840073B1 (de) | 2003-07-23 |
Family
ID=4239833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97810758A Expired - Lifetime EP0840073B1 (de) | 1996-11-01 | 1997-10-09 | Warmluftheizeinrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0840073B1 (de) |
AT (1) | ATE245788T1 (de) |
DE (1) | DE59710466D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004000733U1 (de) * | 2004-01-19 | 2005-06-09 | Riese, Wolfgang | Kühlvorrichtung, insbesondere zum Kühlen von Druckluft |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1254691A (en) * | 1967-11-16 | 1971-11-24 | Simplex Electric Co Ltd | Improvements relating to space heaters |
CA851296A (en) * | 1968-05-02 | 1970-09-08 | Geerinck Raymond | Poele electrique a accumulation de chaleur |
GB1273602A (en) * | 1969-10-03 | 1972-05-10 | Chidlow & Company Ltd E | Improvements in thermal storage heaters |
GB1551818A (en) * | 1975-05-06 | 1979-09-05 | Ti Creda Mfg | Air heating devices |
-
1997
- 1997-10-09 AT AT97810758T patent/ATE245788T1/de not_active IP Right Cessation
- 1997-10-09 EP EP97810758A patent/EP0840073B1/de not_active Expired - Lifetime
- 1997-10-09 DE DE59710466T patent/DE59710466D1/de not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004000733U1 (de) * | 2004-01-19 | 2005-06-09 | Riese, Wolfgang | Kühlvorrichtung, insbesondere zum Kühlen von Druckluft |
Also Published As
Publication number | Publication date |
---|---|
EP0840073A3 (de) | 1999-10-13 |
ATE245788T1 (de) | 2003-08-15 |
EP0840073A2 (de) | 1998-05-06 |
DE59710466D1 (de) | 2003-08-28 |
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