TH27747U - Biomass stove with added smoke extraction system. - Google Patents

Abstract

OCR 10KL (08/09/2025) Biomass stove with added smoke venting system consists of: Stove casing (1) which supports the stove structure and reduces the heat generated from the combustion of fuel that comes out of the stove; Combustion chamber with added smoke venting system (2) which controls the combustion of fuel and prevents smoke from escaping through the bottom of the container; and the chimney (3) which carries smoke from the end of the smoke venting steel pipe (7) of the combustion chamber with added smoke venting system (2) to the outside so that smoke does not disturb the user of the biomass stove with added smoke venting system. The results of testing the biomass stove with added smoke venting system show a reduction in smoke dust generated from the combustion of fuel. The amount of PM 2.5 generated from using the biomass stove with added smoke venting system is no more than 25 micrograms per cubic meter, which is 26 percent compared to the Top-Lit Up Draft type biomass stove and 50 percent compared to the three-legged stove.

Claims (2)

OCR 10KL (08/09/2568) 1. The biomass stove with an enhanced smoke venting system consists of: the stove casing (1), which supports the stove structure and reduces the heat generated from the combustion of fuel that escapes from the stove; the combustion chamber with an enhanced smoke venting system (2), which controls the combustion of fuel and prevents smoke from escaping through the container; and the chimney (3), which carries smoke from the end of the smoke venting steel pipe (7) of the combustion chamber with an enhanced smoke venting system (2) to the outside so that smoke does not disturb the user of the biomass stove with an enhanced smoke venting system. The special feature of the combustion chamber with an enhanced smoke venting system (2) is that it controls the combustion of fuel and prevents smoke from escaping through the container. The combustion chamber with an enhanced smoke venting system (2) is two-layered, with the inner layer of the combustion chamber with an enhanced smoke venting system (2) made of rolled steel sheets in a cylindrical shape to control the combustion of fuel. On top of the inner layer of the smoke extraction combustion chamber (2), four small smoke extraction holes (4) measuring 5 cm high and 10 cm wide are drilled, each 3 cm below the burner opening. One large smoke extraction hole (5) measuring 10 cm high and 20 cm wide is drilled, 3 cm below the burner opening. These holes must be aligned with the fuel feed hole (6) of the smoke extraction combustion chamber (2). All five of these holes serve to vent smoke from the smoke extraction combustion chamber (2) to the outside. Because the container is placed on top of the smoke extraction combustion chamber, which is completely flat, smoke cannot escape from the top of the chamber. Therefore, smoke from the combustion of biomass fuel is vented out through the small smoke extraction holes (4) and the large smoke extraction hole (5) and flows along the gaps between the inner and outer layers of the combustion chamber. The smoke extraction system (2) is then directed to the smoke extraction pipe (7) which is connected to the outer wall (8) of the smoke extraction system (2) combustion chamber and vented upwards. The outer layer of the smoke extraction system (2) combustion chamber is made of rolled steel sheet in a cylindrical shape to serve as a channel for collecting and conveying smoke produced from the combustion of fuel. The outer wall (8) of the smoke extraction system (2) is connected to the smoke extraction pipe (7) by extending it outwards to serve as a smoke extraction point. The position of the smoke extraction pipe (7) must not be directly opposite the positions of the small smoke extraction port (4) and the large smoke extraction port (5). The lower part of the smoke extraction system (2) is fitted with a fuel feed port (6) to convey fuel into the smoke extraction system (2). It is made of steel sheet folded into a rectangular prism shape with open ends. The top of the smoke extraction system (2) is sealed with a sheet. The ring-shaped steel (9) at the bottom of the combustion chamber, which is reinforced with a smoke extraction system (2), is covered with a circular steel plate (10). 2. Biomass stove with smoke extraction system as per claim 1, where the smoke extraction combustion chamber (2) has four small smoke extraction holes (4) 5 cm high and 10 cm wide, each 3 cm below the burner opening, and one large smoke extraction hole (5) 10 cm high and 20 cm wide, 3 cm below the burner opening, which must be directly above the position of the fuel feed hole (6) of the smoke extraction combustion chamber (2).