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CN-224215319-U - Fuel gasification furnace

CN224215319UCN 224215319 UCN224215319 UCN 224215319UCN-224215319-U

Abstract

The utility model discloses a fuel gasification furnace, which comprises a furnace liner, a second combustion chamber, a third combustion chamber and a furnace shell, wherein the furnace liner comprises a first combustion chamber, a first opening is arranged at the top of the first combustion chamber, the first combustion chamber is provided with a first air hole, the first combustion chamber is used for carrying out primary combustion on fuel, the second combustion chamber is provided with a second opening and a third opening which are oppositely arranged along the height direction of the fuel gasification furnace, the third opening is in butt joint communication with the first opening, the side wall of the second combustion chamber is provided with a second air hole, the second combustion chamber is used for receiving products from primary combustion and carrying out secondary combustion, the third combustion chamber is positioned at the periphery of the second combustion chamber, the third combustion chamber is used for receiving products from secondary combustion and carrying out tertiary combustion, the furnace liner is arranged in the furnace shell, the top of the furnace shell is provided with a fourth opening, the fourth opening is used for receiving a heated container, a fourth combustion chamber is formed between the furnace shell and the furnace liner, the fourth combustion chamber is used for receiving the products from the tertiary combustion and carrying out the quaternary combustion, and the energy of the quaternary combustion is used for heating the heated container.

Inventors

  • FAN WEIZHENG

Assignees

  • 范伟政

Dates

Publication Date
20260508
Application Date
20250513

Claims (13)

  1. 1. A fuel gasification furnace, characterized by comprising: a furnace, comprising: The top of the first combustion chamber is provided with a first opening, the first combustion chamber is provided with a first air hole, external oxygen can enter the first combustion chamber through the first air hole, and the first combustion chamber is used for carrying out primary combustion on fuel; The second combustion chamber is provided with a second opening and a third opening which are oppositely arranged along the height direction of the fuel gasification furnace, the third opening is in butt joint communication with the first opening, the side wall of the second combustion chamber is provided with a second air hole, the primary combustion product enters the second combustion chamber through the first opening and the third opening, and the second combustion chamber is used for receiving the primary combustion product and performing secondary combustion; The third combustion chamber is positioned at the periphery of the second combustion chamber, the third combustion chamber is communicated with the second combustion chamber through the second air holes, and products of secondary combustion enter the third combustion chamber through the second air holes, and the third combustion chamber is used for receiving the products of secondary combustion and carrying out tertiary combustion; The furnace shell, the furnace courage is located the inside of furnace shell, the top of furnace shell is equipped with the fourth opening, the fourth opening is used for accepting heated container, the furnace shell with form the fourth combustion chamber between the furnace courage, the fourth combustion chamber passes through the second opening with the second combustion chamber intercommunication, the result of cubic burning passes through after the second gas pocket gets into the second combustion chamber passes through the second opening reaches the fourth combustion chamber, the fourth combustion chamber is used for receiving from the result of cubic burning and carries out the quadruple combustion, the energy of quadruple combustion is used for heating heated container.
  2. 2. The fuel gasification furnace as set forth in claim 1, wherein said first air holes are provided in a side wall and a bottom wall of said first combustion chamber, said first air holes in said side wall are circumferentially distributed and formed in a plurality of turns in said height direction, and said first air holes in said bottom wall are circumferentially distributed and formed in a plurality of turns in a radial direction of said fuel gasification furnace.
  3. 3. The fuel gasification furnace as set forth in claim 1, wherein said second combustion chamber comprises a cylindrical portion and a flare portion, said cylindrical portion and said flare portion being in abutting communication in said height direction, a cross-sectional area of said flare portion being gradually increased in a first direction, said first direction being a direction in which said second opening is directed toward said third opening.
  4. 4. A fuel gasification furnace according to claim 3, wherein said second air hole is provided in a peripheral wall of said horn section and a peripheral wall of a side of said cylindrical section adjacent to said horn section in said height direction.
  5. 5. The fuel gasification furnace as set forth in claim 4, wherein a peripheral wall of a side of said cylindrical portion which is apart from said horn portion in said height direction is not communicated with said third combustion chamber.
  6. 6. The fuel gasification furnace according to claim 1, wherein the area of the second air hole is 8% -15% of the area of the side wall of the second combustion chamber.
  7. 7. A fuel gasification furnace according to claim 1 wherein said furnace shell is provided with an air inlet for introducing said external oxygen into said furnace shell and an air outlet for discharging the products of said four combustions.
  8. 8. A fuel gasification furnace according to claim 7, wherein said first opening is provided with an extension portion extending outwardly in a circumferential direction of said first opening, said extension portion being butted with a bottom portion of said third combustion chamber in said height direction, said extension portion being provided with third air holes through which oxygen between said furnace shell and said furnace shell enters said third combustion chamber.
  9. 9. The fuel gasification furnace according to claim 8, wherein the first air holes have a pore diameter of 2 to 5mm, the first air holes have a number of 150 to 170, the second air holes have a pore diameter of 2 to 5mm, the second air holes have a number of 125 to 150, the third air holes have a pore diameter of 2 to 5mm, and the third air holes have a number of 10 to 15.
  10. 10. The fuel gasification furnace according to claim 1, wherein the first combustion chamber has a height of 15-30 cm, the second combustion chamber has a height of 8-20 cm, and the third combustion chamber has a height of 15-20 cm.
  11. 11. A fuel gasification furnace according to claim 1, wherein the top of the third combustion chamber is dome-shaped with an opening in the middle.
  12. 12. A fuel gasifier according to any one of claims 1 to 11 further comprising a feed chamber for storing said fuel, including a feed port, said feed chamber extending from said feed port through a side wall of said furnace shell in communication with said first combustion chamber such that said fuel from said feed chamber can be delivered to said first combustion chamber.
  13. 13. A fuel gasification furnace according to claim 12 wherein the feed chamber is provided with a recess surrounding the outer surface of the feed chamber, the recess being provided with fourth air holes, the fourth air holes being inclined with respect to the outer surface of the feed chamber, external oxygen entering the feed chamber through the fourth air holes.

Description

Fuel gasification furnace Technical Field The utility model relates to the field of fuel stoves, in particular to a fuel gasification stove. Background In the conventional combustion mode, particularly in rural kitchens and outdoor camping scenes, a fuel gasifier for combusting fuel generally adopts a conventional direct-fired furnace structure, and various disadvantages often exist. For example, the insufficient combustion causes a large amount of thick smoke to be generated, so that the environment is polluted, soot is fully distributed on walls of a village kitchen, the cleaning burden is increased, when the camping is performed outdoors, common bonfire rolls due to the thick smoke, people can smoke and open eyes, camping experience is affected, even forest fire alarms can be triggered, potential safety hazards exist, and meanwhile, the thick smoke also causes damage to health of users. In recent years, some improved fuel gasifiers, such as secondary combustion furnaces, have appeared on the market, in an attempt to increase efficiency by staged combustion or optimizing the air intake structure. However, the problems of insufficient combustion and low energy utilization efficiency still exist in the prior art, and the efficient and environment-friendly combustion effect cannot be realized. Disclosure of utility model In order to solve the technical problems, the embodiment of the utility model discloses a fuel gasification furnace. A fuel gasification furnace comprising: a furnace, comprising: The top of the first combustion chamber is provided with a first opening, the first combustion chamber is provided with a first air hole, external oxygen can enter the first combustion chamber through the first air hole, and the first combustion chamber is used for carrying out primary combustion on fuel; The second combustion chamber is provided with a second opening and a third opening which are oppositely arranged along the height direction of the fuel gasification furnace, the third opening is in butt joint communication with the first opening, the side wall of the second combustion chamber is provided with a second air hole, the primary combustion product enters the second combustion chamber through the first opening and the third opening, and the second combustion chamber is used for receiving the primary combustion product and performing secondary combustion; The third combustion chamber is positioned at the periphery of the second combustion chamber, the third combustion chamber is communicated with the second combustion chamber through the second air holes, and products of secondary combustion enter the third combustion chamber through the second air holes, and the third combustion chamber is used for receiving the products of secondary combustion and carrying out tertiary combustion; The furnace shell, the furnace courage is located the inside of furnace shell, the top of furnace shell is equipped with the fourth opening, the fourth opening is used for accepting heated container, the furnace shell with form the fourth combustion chamber between the furnace courage, the fourth combustion chamber passes through the second opening with the second combustion chamber intercommunication, the result of cubic burning passes through after the second gas pocket gets into the second combustion chamber passes through the second opening reaches the fourth combustion chamber, the fourth combustion chamber is used for receiving from the result of cubic burning and carries out the quadruple combustion, the energy of quadruple combustion is used for heating heated container. By adopting the technical scheme, the four combustion chambers of the first combustion chamber, the second combustion chamber, the third combustion chamber and the fourth combustion chamber and the openings and air holes of the combustion chambers are mutually communicated to form an optimized air flow path, so that high-temperature flue gas sequentially flows through the combustion chamber areas, the sufficient air flow residence time is ensured to be efficiently and fully combusted, the cascade utilization of heat is realized, the energy of fuel is released to the greatest extent, and the energy utilization rate is improved. Optionally, the first air holes are arranged on the side wall and the bottom wall of the first combustion chamber, the first air holes on the side wall are distributed along the circumferential direction and form a plurality of circles along the height direction, and the first air holes on the bottom wall are distributed along the circumferential direction and form a plurality of circles along the radial direction of the fuel gasification furnace. Optionally, the second combustion chamber includes a barrel portion and a flare portion, the barrel portion and the flare portion are in butt-joint communication along the height direction, a cross-sectional area of the flare portion gradually increases along a first direction, and the