A swirl burner head

Abstract

The present invention provides a swirl burner head, comprising a central cavity; an intermediate cylinder is sleeved on the central cavity; an outer cylinder is sleeved on the intermediate cylinder; an inner cylinder is connected to the end of the central cavity in the outer cylinder; a sleeve is provided on the inner cylinder surface inside the outer cylinder; an L-shaped ring plate connected to the central cavity, the outer cylinder and the intermediate cylinder is sleeved on the sleeve; a flange plate is provided at the end of the outer cylinder; the outer cylinder, the L-shaped ring plate, the central cavity, the sleeve and the flange blockage form a swirl chamber; the swirl chamber is connected to the inner cylinder through a swirl tube; the swirl chamber is connected to the central cavity through a second swirl plate; the outer cylinder, the intermediate cylinder and the L-shaped ring plate form a second swirl chamber; a swirl plate is provided between the outer cylinder and the intermediate cylinder; an air duct is connected to the outer cylinder; a partition is provided in the air duct; the partition divides the air duct into a first air duct and a second air duct; the first air duct is connected to the second swirl chamber; the second air duct is connected to the swirl chamber; regulating valves are provided in the first air duct and the second air duct, and the combustion effect is guaranteed by the three swirl winds of the burner head, thereby improving the combustion effect of the fuel.

Description

Technical Field

[0001] The burner head provided by the present invention particularly relates to a swirl burner head. Background Art

[0002] At present, biomass fuels such as biomass pellets, straw, wood scraps, and building formwork are widely used. In the process of suspension, boiling, and semi-gasification cracking combustion, biomass fuels generally have the phenomena of unfocused flame, incomplete combustion, and large ash. This technology provides a swirl burner head, which realizes the concentration of flame and full combustion of cracking combustible gas in the combustion process of biomass fuels. The three swirl winds of the burner head ensure the combustion effect, reduce the ash content, and greatly improve the combustion effect of biomass fuels. Summary of the invention

[0003] The swirl burner head provided by the present invention has a simple structure and is easy to use. It realizes flame concentration and full combustion of cracked combustible gas during the combustion of biomass fuels. The three-dimensional swirl wind of the burner head ensures the combustion effect, reduces the ash content, and greatly improves the combustion effect of biomass fuels.

[0004] The present invention provides a swirl burner head, comprising a concentration cavity; an intermediate cylinder is sleeved on the outer end surface of the concentration cavity; an outer cylinder is sleeved on the outer end surface of the intermediate cylinder; an inner cylinder is connected to the end of the concentration cavity in the outer cylinder; a sleeve is sleeved on the surface of the inner cylinder inside the outer cylinder; an L-shaped ring plate fixedly connected to the concentration cavity, the inner wall of the outer cylinder and the intermediate cylinder is sleeved on the surface of the sleeve; a flange plate is provided at the end of the outer cylinder; the outer cylinder, the L-shaped ring plate, the concentration cavity, the sleeve and the flange blockage form a swirl air chamber; the swirl air chamber and the inner cylinder are connected by a swirl The flow tubes are connected; the swirl chamber is connected to the central cavity through the second swirl plate; the outer tube, the middle tube, and the L-shaped ring plate form a second swirl chamber; a swirl frame is provided between the outer tube and the middle tube; a swirl plate is provided on the swirl frame; an air duct is connected to the outer tube; a partition is fixedly connected in the air duct; the partition divides the air duct into a first air duct and a second air duct; the first air duct is connected to the second swirl chamber; the second air duct is connected to the swirl chamber; regulating valves are respectively provided in the first air duct and the second air duct.

[0005] The swirl frame is fixedly connected to the outer cylinder and the middle cylinder.

[0006] The end of the outer cylinder away from the air duct is fixedly connected with an obliquely cut air contraction pipe.

[0007] The outer cylinder is provided with a mounting flange.

[0008] The ends of the outer tube, the middle tube and the central cavity away from the inner tube are provided with openings.

[0009] A fire-resistant layer is provided between the central cavity and the intermediate tube.

[0010] The fire-resistant layer is composed of concentrated water of alkaline silicate and heat-resistant inorganic filler; when heated, the fire-resistant layer forms a highly heat-insulating coating by bubbling.

[0011] The cyclone tubes are evenly arranged in a plurality; the extension lines of the center lines of the cyclone tubes intersect at one point; and the extension lines of the center lines of the cyclone tubes intersect in the concentration cavity.

[0012] Beneficial effects of the invention: The swirl burner head provided by the invention has a simple structure and is easy to use. It realizes flame concentration and full combustion of cracked combustible gas during the combustion of biomass fuels. The three swirl winds of the burner head ensure the combustion effect, reduce the ash content, and greatly improve the combustion effect of biomass fuels. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a cross-sectional view of a swirl burner head of the present invention.

[0014] Figure 2 The figure is a cross-sectional view of a swirl plate of a swirl burner head according to the present invention.

[0015] (1. Central cavity, 2. Intermediate tube, 3. Outer tube, 4. Inner tube, 5. Sleeve, 6. L-shaped ring plate, 7. Flange plate, 8. Cyclone air chamber, 9. Second cyclone plate, 10. Second cyclone air chamber, 11. Cyclone tube, 12. Cyclone plate, 13. Air duct, 14. Partition, 15. First air duct, 16. Second air duct, 17. Regulating valve, 18. Bevel structure, 19. Mounting flange, 20. Refractory layer) DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] according to Figure 1 , Figure 2The swirl burner head shown in the figure comprises a central cavity 1; an intermediate cylinder 2 is sleeved on the outer end surface of the central cavity 1; an outer cylinder 3 is sleeved on the outer end surface of the intermediate cylinder 2; an inner cylinder 4 is connected to the end of the central cavity 1 in the outer cylinder 3; a sleeve 5 is sleeved on the surface of the inner cylinder 4 inside the outer cylinder 3; an L-shaped ring plate 6 fixedly connected to the central cavity 1, the inner wall of the outer cylinder 3 and the intermediate cylinder 2 is sleeved on the surface of the sleeve 5; a flange plate 7 is provided at the end of the outer cylinder 3; the outer cylinder 3, the L-shaped ring The plate 6, the central cavity 1, the sleeve 5, and the flange plug 7 form a cyclone chamber 8; the cyclone chamber 8 is connected to the inner cylinder 4 through a cyclone tube 11; the cyclone chamber 8 is connected to the central cavity 1 through a second cyclone plate 9; the outer cylinder 3, the intermediate cylinder 2, and the L-shaped ring plate 6 form a second cyclone chamber 10; a cyclone frame is provided between the outer cylinder 3 and the intermediate cylinder 2; a cyclone plate 12 is provided on the cyclone frame; the outer cylinder 3 is connected to a duct 13; the duct 13 is fixedly connected to the inner cylinder 3; A partition 14 is connected; the partition 14 divides the air duct into a first air duct 15 and a second air duct 16; the first air duct 15 is communicated with the second cyclone air chamber 10; the second air duct 16 is communicated with the cyclone air chamber 8; a regulating valve 17 is respectively arranged in the first air duct 15 and the second air duct 16; the cyclone frame is fixedly connected to the outer tube 3 and the middle tube 2; the end of the outer tube 3 away from the air duct 13 is fixedly connected with an oblique contraction tube 18; the outer tube 3 is provided with a mounting flange 19 ; The outer tube 3, the middle tube 2, and the concentrated cavity 1 are provided with openings at the ends away from the inner tube; a refractory layer 20 is provided between the concentrated cavity 1 and the middle tube 2; the refractory layer 20 is composed of concentrated water of alkaline silicate and heat-resistant inorganic filler; when heated, the refractory layer forms a highly heat-insulating coating by bubbling; the cyclone tubes 11 are evenly provided with multiple ones; the extension lines of the center lines of the cyclone tubes 11 intersect at one point; the extension lines of the center lines of the cyclone tubes 11 intersect in the concentrated cavity 1.

[0018] Principle of the present invention: When in use, wind enters from the first wind duct 15 and the second wind duct 16, and the wind enters from the first wind duct 15 into the second swirl wind chamber 10. The second swirl wind chamber 10 is provided with a swirl plate 12. The wind entering the second swirl wind chamber 10 passes through the swirl plate 12 to form a primary swirl wind. When the primary swirl wind passes through the contraction tube 18 on the outer cylinder 3, the primary swirl wind gathers toward the center point to achieve flame concentration. The wind enters the swirl wind chamber 8 through the second wind duct 16. The wind entering the swirl wind chamber 8 passes through the second swirl plate 9 to form a secondary swirl wind. The secondary swirl wind enters the concentrated cavity 1 to assist combustion. Another part of the wind in the swirl wind chamber 8 passes through the swirl tube 11 to form a tertiary swirl wind, passes through the inner cylinder 4, and enters Enter into the central cavity 1 to assist combustion, the extension lines of the center lines of the swirl tube 11 intersect at a point; the extension lines of the center lines of the swirl tube 11 intersect in the central cavity 1, and the three swirl winds are concentrated at a point in the central cavity 1. The wind directions of the primary swirl wind, the secondary swirl wind, and the tertiary swirl wind are different. With mutual cooperation, the combustion effect is guaranteed, the ash content is reduced, and the combustion effect of biomass fuels is greatly improved. The first air duct 15 and the second air duct 16 are respectively provided with regulating valves 17 to respectively adjust the wind force. The refractory layer 20 is composed of concentrated water of alkaline silicate and heat-resistant inorganic filler. When the refractory layer 20 is heated, a highly heat-insulating coating is formed by bubbling to prevent heat dissipation.

[0019] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the authorization requirements.

Claims

1. A swirl burner head, characterized in that: The invention comprises a central cavity (1); an intermediate cylinder (2) is sleeved on the outer end surface of the central cavity (1); an outer cylinder (3) is sleeved on the outer end surface of the intermediate cylinder (2); an inner cylinder (4) is connected to the inner end of the central cavity (1) of the outer cylinder (3); a sleeve (5) is sleeved on the surface of the inner cylinder (4) inside the outer cylinder (3); an L-shaped ring plate (6) is sleeved on the surface of the sleeve (5) and is fixedly connected to the central cavity (1), the inner wall of the outer cylinder (3) and the intermediate cylinder (2); a flange plate (7) is provided at the end of the outer cylinder (3); the outer cylinder (3), the L-shaped ring plate (6), the central cavity (1), the sleeve (5) and the flange plate (7) form a cyclone air chamber (8); the cyclone air chamber (8) is connected to the inner cylinder (4) via a cyclone tube (11); the cyclone The air flow chamber (8) is connected to the central cavity (1) through a second swirl plate (9); the outer cylinder (3), the middle cylinder (2), and the L-shaped ring plate (6) form a second swirl chamber (10); a swirl frame is provided between the outer cylinder (3) and the middle cylinder (2); a swirl plate (12) is provided on the swirl frame; an air duct (13) is connected to the outer cylinder (3); a partition plate (14) is fixedly connected to the air duct (13); the partition plate (14) divides the air duct into a first air duct (15) and a second air duct (16); the first air duct (15) is connected to the second swirl chamber (10); the second air duct (16) is connected to the swirl chamber (8); regulating valves (17) are provided in the first air duct (15) and the second air duct (16); An end of the outer cylinder (3) away from the air duct (13) is fixedly connected to an obliquely cut air shrinkage tube (18); A plurality of cyclone tubes (11) are evenly arranged; the extension lines of the center lines of the cyclone tubes (11) intersect at one point; and the extension lines of the center lines of the cyclone tubes (11) intersect within the concentration cavity (1).

2. A swirl burner head according to claim 1, characterized in that: The swirl frame is fixedly connected to the outer cylinder (3) and the middle cylinder (2).

3. A swirl burner head according to claim 1, characterized in that: The outer cylinder (3) is provided with a mounting flange (19).

4. A swirl burner head according to claim 1, characterized in that: The outer cylinder (3), the middle cylinder (2), and the central cavity (1) are provided with openings at their ends away from the inner cylinder.

5. A swirl burner head according to claim 1, characterized in that: A fire-resistant layer (20) is provided between the central cavity (1) and the intermediate tube (2).

6. A swirl burner head according to claim 5, characterized in that: The fire-resistant layer (20) is composed of concentrated water of alkaline silicate and heat-resistant inorganic filler; when heated, the fire-resistant layer forms a highly heat-insulating coating by bubbling.

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