DOOR WITH BUILT-IN BURNER FOR HEATING UNIT Russian patent published in 2013 - IPC F23M7/04 F23D14/70 F24H1/43 

FIELD: heating.

SUBSTANCE: door with a built-in burner for a heating unit, which is equipped on its inner side with gas burner (2) and on its outer side with system (5) for supply of flammable gas mixture to the burner. Door (1) is made so that it can be installed in frame (61) of the unit wall and detachably fixed on that frame, differs by the fact that it includes a pair of metal sheets (10, 11) rigidly attached to each other in their circumferential direction (100). Outside sheet (10) is provided in its central zone with inlet hole (102) for injection of the above gas mixture, and inside sheet (11) is provided in its central zone with outlet hole (103) that is coaxial to the above inlet hole (102) and on which burner (2) is fixed. Two sheets (10, 11) are located at some distance from each other, and between them there is the space, inside which baffle plate (3, 3') is fixed. The above baffle plate (3) has the shape of a disc, the diameter of which exceeds the diameter of inlet (102) and outlet (103) holes of the above door, and is installed with its centre on axis (X-X') of those holes and perpendicular to that axis. Baffle plate (3) is made of two parallel sheets (30, 31) located at a short distance from each other and attached to each other in their peripheral direction (300). Baffle plate (3) has such shape and dimensions that the gas mixture flow entering the unit through the above inlet hole (102) deviates to the outside of baffle plate (3), envelopes its peripheral shoulder (300) to the inner side and then flows along its inner side and leaves the above outlet hole (103) and enters burner (2).

EFFECT: design restricts heat losses through the door, allows maintaining its outer side in a cold state, preventing burns and burning gas mixture.

18 cl, 7 dwg