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SE531089C2 - Device for flue gas cooling in pellet-burning stoves and boilers - Google Patents

Device for flue gas cooling in pellet-burning stoves and boilers

Info

Publication number
SE531089C2
SE531089C2 SE0600366A SE0600366A SE531089C2 SE 531089 C2 SE531089 C2 SE 531089C2 SE 0600366 A SE0600366 A SE 0600366A SE 0600366 A SE0600366 A SE 0600366A SE 531089 C2 SE531089 C2 SE 531089C2
Authority
SE
Sweden
Prior art keywords
flue gas
fan
flue
pellet
boilers
Prior art date
Application number
SE0600366A
Other languages
Swedish (sv)
Other versions
SE0600366L (en
Inventor
Berth Wikstroem
Ulf Wikstroem
Original Assignee
Ariterm Sweden Ab
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 Ariterm Sweden Ab filed Critical Ariterm Sweden Ab
Priority to SE0600366A priority Critical patent/SE531089C2/en
Publication of SE0600366L publication Critical patent/SE0600366L/en
Publication of SE531089C2 publication Critical patent/SE531089C2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Cooling System (AREA)

Description

Föreliggande uppfinning beskriver en rökgasfläkt för fastbränsleeldade värmepannor eller kaminer där man med inblandinng av ytterluft i rökgaserna uppnår en rad fördelar jämfört med en förbränningsluftfläkt som trycker luft genom kaminen eller pannan. Speciellt möjliggör uppfinningen användning av en rökgasfläkt med en i fläkthjulet inbyggd så kallad ytterrotormotor. The present invention describes a flue gas fan for solid fuel fired boilers or stoves where by mixing external air in the flue gases a number of advantages are achieved compared to a combustion air fan which pushes air through the stove or boiler. In particular, the invention enables the use of a flue gas fan with a so-called outer rotor motor built into the fan wheel.

Rökgasfläktar som monteras efter en fastbränsleeldad kamin eller värmepanna har, jämfört med en förbränningsluftfläkt som trycker luft genom kaminen eller pannan, fördelen av att man arbetar med undertryck i brännkammaren med lägre krav på täthet i förbränningsanordningen och utan krav på naturligt drag i rökgasledningen . Vanligtvis har man med båda systemen så höga rökgastemperaturer att rökgasledningen måste ges en bra värmeisolering och med hänsyn till utloppstemperaturen ledas bort från vistelsezoner utomhus, exemplevis ovan tak. Flue gas fans mounted on a solid fuel fired stove or boiler have, compared to a combustion air fan that pushes air through the stove or boiler, the advantage of working with negative pressure in the combustion chamber with lower requirements for tightness in the combustion device and without requirements for natural draft in the flue gas line. With both systems, the flue gas temperatures are usually so high that the flue gas line must be given good thermal insulation and, with regard to the outlet temperature, be led away from outdoor living zones, for example above the roof.

Sugande rökgasfläktar har av ovanstående skäl utförts med inblandning av kylande ytterluft, exempelvis beskrivna i patentdokumenten US 4424792 och US 5261389. Föreliggande uppfinning beskriver ett utförande med rökgasfläkt med så kallad ytterrotormotor monterad inuti f läkthjulet, vilket jämfört med en utanpåliggande motor ger flera fördelar I figur 1 redovisas ett exempel på hur en fläktanordning enligt uppfinningen kan utföras med fläkthjul med ytterrotormotor. Suction flue gas fans have for the above reasons been made with a mixture of cooling outer air, for example described in patent documents US 4424792 and US 5261389. The present invention describes an embodiment with flue gas fan with so-called outer rotor motor mounted inside the flywheel, which gives several advantages. 1 shows an example of how a fan device according to the invention can be designed with fan wheels with an external rotor motor.

I fläkthuset (1) är fläkthjulet (2) monterat på motorns rötor (3) och med motorns stator (4) monterad på fläkthuset (1). I fläkthjulets inlopp har en cylindrisk inloppsdel (5) för ytterluft anbringats. Denna cylindriska del (5) omsluter till en del motorns rötor (3) och har en innerdiameter större än motorns rötor (3) så att en kylande ström av uteluft riktas över rotom (3). Den cylindriska inloppsdelen (5) har en botten (6) och är ansluten till en inloppskanal (7) för ytterluft. Rökgaser från rökröret (8) uttages genom den till fläkthuset (1) anslutna kanalen (9). In the fan housing (1), the fan wheel (2) is mounted on the motor rotor (3) and with the motor stator (4) mounted on the fan housing (1). A cylindrical inlet part (5) for external air has been fitted in the inlet of the fan wheel. This cylindrical part (5) encloses in part a motor rotor (3) and has an inner diameter larger than the motor rotor (3) so that a cooling stream of outdoor air is directed over the rotor (3). The cylindrical inlet part (5) has a bottom (6) and is connected to an inlet duct (7) for outside air. Flue gases from the flue pipe (8) are extracted through the duct (9) connected to the fan housing (1).

Claims (1)

531 OBS PATENTKRAV f).531 NOTE CLAIMS f). 1. Anordning för rökgaskylning vid rökrörsanslutna pelleteldade Kaminer och värrnepannor k ä n n e t e c k n a d därav att tilll rökröret (8) anslutits en fläkt (1) med en ifläkthjulet (2) inbyggd ytterrotormotor (3, 4) med en motorrotørn (3) ornslutande cylindrisk kylmantel (5) ansluten till uteluft via en kyikanal (7) så utformad att uteluften bringas att omströrrrria fläktmotorn (3, 4) före inblandning i rökgaserna från rökröret (8) och varvid kyianordningen (5, 6, 7) dimensionerats så att dess strömningsmotstånd är lika lågt som, eller lägre än kamnens eller värrnepannans rölgqassidiga strömningsmotstàndDevice for flue gas cooling in flue-connected pellet-fired stoves and boiler boilers characterized in that a fan (1) is connected to the flue pipe (8) with an external rotor motor (3, 4) built into the fan wheel (2) and a motor-rotating cylinder (3). 5) connected to outdoor air via a cooling duct (7) so designed that the outdoor air is caused to agitate the fan motor (3, 4) before mixing in the flue gases from the flue (8) and wherein the cooling device (5, 6, 7) is dimensioned so that its flow resistance is equal as low as, or lower than, the ridge-side flow resistance of the cam or boiler
SE0600366A 2006-02-20 2006-02-20 Device for flue gas cooling in pellet-burning stoves and boilers SE531089C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE0600366A SE531089C2 (en) 2006-02-20 2006-02-20 Device for flue gas cooling in pellet-burning stoves and boilers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0600366A SE531089C2 (en) 2006-02-20 2006-02-20 Device for flue gas cooling in pellet-burning stoves and boilers

Publications (2)

Publication Number Publication Date
SE0600366L SE0600366L (en) 2007-08-21
SE531089C2 true SE531089C2 (en) 2008-12-16

Family

ID=38476369

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0600366A SE531089C2 (en) 2006-02-20 2006-02-20 Device for flue gas cooling in pellet-burning stoves and boilers

Country Status (1)

Country Link
SE (1) SE531089C2 (en)

Also Published As

Publication number Publication date
SE0600366L (en) 2007-08-21

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Legal Events

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