RU110821U1 - FURNACE DOOR OVEN DOOR - Google Patents

Abstract

 A door for a furnace with an external fuel channel of the combustion chamber, consisting of a body including a supporting frame and decorative lining, a door leaf with a translucent screen and a mechanism for vertical movement of the door leaf, the translucent screen area being 15-85% of the door leaf area.

Description

The utility model relates to devices for heating rooms for various purposes and when using all types of fuel, in particular to heating stoves.

Known furnaces with a door, made with a translucent screen of heat-resistant glass ceramics of different sizes. (Bath furnaces, heating furnaces www.termofor.ru) The closest in technical essence and the achieved result is a door for heating furnaces, comprising a door mounted for rotation in a frame located in the opening of the furnace body, a protective shutter is movably installed inside the body, kinematically connected with the door in such a way that when the door is open, the curtain is located vertically or almost vertically, when closed - horizontally or almost horizontally. (RF patent No. 2409790, class F24B 1/192, published January 20, 2011. The disadvantage of this solution is a partial decrease in the flow of combustion products into the room during operation of the furnace.

The technical result, the achievement of which the present utility model is directed, is to create a door design for a furnace with an external fuel channel of the combustion chamber to provide a significant reduction in the flow of combustion products into the room during operation of the furnace. Achieving the indicated technical result is ensured by a furnace door with an external fuel channel of the combustion chamber, consisting of a body including a supporting frame and decorative linings, a door leaf with a translucent screen and a door leaf movement mechanism, and the translucent screen area is not more than 85% of the door leaf area. The case of the device, including the supporting frame and decorative pads, is a power structure since the door leaf and the door leaf movement mechanism are mounted on it. The supporting frame is attached to the external fuel channel of the furnace combustion chamber. Decorative pads serve to protect the furnace user in the event of a breakdown of the door leaf movement mechanism, to protect the door leaf movement mechanism from external influences and give the device an aesthetic finished appearance. A door leaf with a translucent screen serves to limit the combustion zone from the surrounding space, as well as to monitor and control the combustion process. The door leaf movement mechanism serves for vertical movement and fixing of the door leaf in the closed position. When raising and lowering the door leaf, the area of the open opening of the external fuel channel of the furnace evenly increases or decreases, which eliminates the effect of backward thrust with the ingress of combustion products into the heated room even with weak burning and with various options for igniting solid fuel from above or below. To optimize the design of the door for the furnace with an external fuel channel of the combustion chamber, the area of the translucent screen is not more than 85% of the area of the door leaf. The value of the specified criterion was chosen based on the fact that for different sections of the external fuel channel of the furnace chamber of the furnace, a space along the perimeter of the door leaf is necessary to place an anti-smoke seal in order to eliminate insufficient tight mating of the surfaces of the door leaf and the external fuel channel.

The utility model is illustrated by drawings, which shows a General view of the door for a bath stove with an external fuel channel of the combustion chamber, allowing it to be heated from an adjacent room, (Fig.1, 2).

The proposed device consists of a housing 1, including a U-shaped supporting frame 2 and decorative heat-resistant lining 3, a door leaf with a handle 4 equipped with a perimeter single-circuit smoke seal, with a translucent screen 5 with an area of 75% of the area of the door leaf and the mechanism of vertical movement of the door webs on ropes with counterweights 6. The device is attached with screws to the external fuel channel of the combustion chamber 7 of the sauna furnace (not shown in the drawing). The device operates as follows. For laying firewood, the door leaf 4 with a translucent screen 5 is lifted up by the handle to release the opening of the external fuel channel of the combustion chamber 7. After the wood is ignited, the door leaf 4 is lowered and the combustion process is monitored through the translucent screen 5. Counterweights of the door leaf movement mechanism 6 connected to of two sides with the door leaf through the system of blocks and cables, balance the movable system of the counterweights - the leaf and prevent the door leaf 4 from spontaneously lowering when moving it oh up.

The mechanism for moving the door on cables with counterweights 6 allows you to evenly change the opening area of the remote fuel channel 7 and fix the door leaf in the closed position. When raising and lowering the door leaf 4, the flow of air into the external fuel channel of the combustion chamber 7 is uniform, increasing traction in the chimney of the furnace, which improves the operating conditions of the furnace and prevent the ingress of combustion products into the heated room.

The tests by the authors and the applicant of a full-size sample of the proposed design of the door of the bath furnace with an external fuel channel of the combustion chamber confirmed the correctness and effectiveness of the technical solution for industrial production.

Claims (1)

A door for a furnace with an external fuel channel of the combustion chamber, consisting of a body including a supporting frame and decorative lining, a door leaf with a translucent screen and a mechanism for vertical movement of the door leaf, the translucent screen area being 15-85% of the door leaf area.