Global Patent Index - EP 1091171 A1

EP 1091171 A1 2001-04-11 - Method for the generation of a homogeneous air flow in a forced-draft burner and device for its realization

Title (en)

Method for the generation of a homogeneous air flow in a forced-draft burner and device for its realization

Title (de)

Verfahren zum Schaffen eines homogenen Luftstromes in einem Gebläsebrenner und Gerät für seine Verwirklichung

Title (fr)

Procédé pour produire un courant d'air homogène dans un brûleur à air soufflé et moyens de mise en oeuvre

Publication

EP 1091171 A1 (DE)

Application

EP 00120625 A

Priority

DE 19948876 A

Abstract (en)

The method involves altering the structure of the air flow channel. The air flow is generated by an impeller (3) of a fan (1) in a spiral channel of the fan casing and then conducted in a perpendicular deflector into a burner casing (8) at the side, to flow through air holes into a distributor element (13) in the burning zone of the fan burner. There is an n-stage reduction of the degree of turbulence, where n is at least 2 and preferably equals 2. A first stage of the reduction at the deflector is a linear baffle (14), preferably in the form of a lamella grating. An optional second stage of the reduction is a tube baffle (22), preferably in the form of an open cylinder grating (23) open at the end to the distributor element. An optional third stage of the reduction is a circular baffle in the form a grating with small holes, which homogenises the air flow in front of the distributor element. An Independent claim is included for a device for implementing the method.

Abstract (de)

Bei einem Gebläse, dessen Gebläsegehäuse(4) einen Spiralkanal (5) und eine etwa rechtwinklige Umlenkung(6) besitzt und dem seitlich ein Brennergehäuse (8) mit einem stirnseitigen Verteilerelement (13) mit Luftlöchern (31) zugeordnet ist, soll eine gezielte Homogenisierung des Luftstromes durch eine Änderung der Struktur erreicht werden. Dieses wird erreicht durch eine n-stufige Verringerung des Turbulenzgrades (n >= 2, vorzugsweise = 2), wobei als 1. Stufe an der Umlenkung (6) ein Linearberuhiger (14), vorzugsweise in Form eines Lamellengitters (15), und/oder als 2. Stufe im Brennergehäuse (22), vorzugsweise in Form eines stirnseitig zum Verteilerelement (13) hin offenen Zylindergitters (23) und/oder als 3. Stufe ein Kreisberuhiger (26) in Form eines mit kleinen Löchern (28) versehenen Gitters (27) vor dem Verteilerelement (13) den Luftstrom homogenisiert. <IMAGE>

IPC 1-7 (main, further and additional classification)

F23D 11/00; F23D 14/36

IPC 8 full level (invention and additional information)

F23D 11/00 (2006.01); F23D 14/36 (2006.01)

CPC (invention and additional information)

F23D 11/001 (2013.01); F23D 14/36 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1091171 A1 20010411; EP 1091171 B1 20040225; AT 260441 T 20040315; CZ 20003646 A3 20020717; CZ 296290 B6 20060215; DE 19948876 A1 20010419; DE 19948876 C2 20030626; ES 2214202 T3 20040916; PL 192918 B1 20061229; PL 343017 A1 20010409; TR 200002928 A2 20011022

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