Combustion head of full-premixing water-cooled combustion engine

Abstract

The utility model discloses a combustion head of a full-premixing water-cooled combustion engine, which comprises a mounting seat, a combustion head, a water-cooled combustion head and a water-cooled combustion head, and is characterized in that the mounting seat is fixed on a boiler; the water inlet pipe is horizontally arranged above the mounting seat; the water outlet pipe is horizontally arranged below the mounting seat; the first cooling pipe is vertically arranged between the water inlet pipe and the water outlet pipe, and a plurality of layers of cooling fins are arranged on the outer wall of the first cooling pipe. The water-cooling burner has the advantages that the burning temperature of flames is reduced in a water-cooling mode, the radiating fins are arranged, burning gas flows through the radiating fins, a structure similar to a nozzle is formed, the purpose of shortening the length of the flames is achieved, burning is more sufficient and stable, and formation of nitric oxide is reduced.

Description

Technical Field

[0001] The utility model relates to the field of gas boilers, in particular to a combustion head of a full premixed water-cooled burner. Background Art

[0002] A burner is a thermal energy device that delivers fuel and air into the furnace at the required concentration, speed, turbulence and mixing method, and enables the fuel to ignite and burn stably in the furnace. It is generally used in small and medium-sized oil or gas boilers.

[0003] When the burner is working, air and fuel are usually passed into the combustion head for combustion, and the flame is ejected to connect to the boiler. The flame ejected by the traditional head is relatively long, and the combustion sound is loud, which affects the combustion stability and needs to be improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a combustion head for a fully premixed water-cooled burner, which has the effect of improving combustion stability.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A combustion head of a fully premixed water-cooled burner, comprising:

[0006] A mounting base, used for fixing on the boiler;

[0007] A water inlet pipe, horizontally arranged above the mounting seat;

[0008] A water outlet pipe is horizontally arranged below the mounting seat;

[0009] The first cooling pipe is vertically arranged between the water inlet pipe and the water outlet pipe, and the outer wall thereof is provided with multiple layers of heat dissipation fins.

[0010] In a preferred example, the utility model can be further configured as follows: two sides of the heat dissipation fins are bent to have folded edges that interfere with each other.

[0011] In a preferred example, the utility model can be further configured as follows: the folded edge is arranged in a semicircular shape.

[0012] In a preferred example, the utility model can be further configured as follows: a second cooling pipe with a smooth outer wall is arranged behind the first cooling pipe, and the second cooling pipe is vertically arranged between the water inlet pipe and the water outlet pipe.

[0013] In a preferred example, the utility model can be further configured as follows: a pair of third cooling pipes with smooth outer walls are arranged behind the second cooling pipe, and the third cooling pipes are vertically arranged between the water inlet pipe and the water outlet pipe and distributed on both sides of the mounting seat.

[0014] In a preferred example, the present invention can be further configured as follows: a plurality of fire-blocking plates located in front of the first cooling pipe are arranged on the mounting seat.

[0015] In a preferred example, the utility model can be further configured as follows: the fire barrier plate includes a bottom plate and a top plate, the bottom plate is horizontally arranged, the top plate is arranged in a wave shape, and multiple rows of air permeable channels are formed between the top plate and the upper and lower layers of the bottom plate.

[0016] In summary, the utility model has the following beneficial effects:

[0017] 1. The combustion temperature of the flame is lowered by water cooling, and heat dissipation fins are provided so that the combustion gas flows between the heat dissipation fins to form a nozzle-like structure, thereby shortening the flame length, making the combustion more complete and stable, and reducing the formation of nitrogen oxides;

[0018] 2. By setting up the cooperation of the second cooling tube and the third cooling tube, the noise generated by the flame combustion is reduced, and the flame is prevented from running outward, thereby ensuring the stability of the flame;

[0019] 3. By setting the folded edge on the heat dissipation fin, on the one hand, the gas can be ensured to flow stably and separate the gas, so that the two groups of gas are mixed together to form a vortex, thereby ensuring the combustion stability; on the other hand, welding is facilitated to realize the rapid fixation of the first cooling tube;

[0020] 4. By setting a fire barrier with evenly distributed air permeable channels, the gas can enter the combustion head evenly, allowing the gas to burn as fully as possible and preventing backfire. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment;

[0022] Figure 2 is a schematic structural diagram of a first cooling tube, a second cooling tube and a third cooling tube of an embodiment;

[0023] Figure 3 yes Figure 2 A local enlarged view of point A in the figure.

[0024] Figure numerals: 1, mounting base; 2, water inlet pipe; 3, water outlet pipe; 4, first cooling pipe; 5, second cooling pipe; 6, third cooling pipe; 7, heat dissipation fin; 71, folded edge; 8, fire barrier plate; 81, bottom plate; 82, top plate; 83, air vent. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1 , Figure 2 As shown, a combustion head of a full premixed water-cooled burner includes a mounting base 1, a water inlet pipe 2, a water outlet pipe 3, a first cooling pipe 4, a second cooling pipe 5 and a third cooling pipe 6.

[0027] like Figure 1 , Figure 2 As shown, the mounting base 1 is used to be fixed on the boiler, the water inlet pipe 2 is horizontally arranged above the mounting base 1, and the water outlet pipe 3 is horizontally arranged below the mounting base 1.

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, the first cooling tube 4 is vertically arranged between the water inlet tube 2 and the water outlet tube 3, and the outer wall is provided with multiple layers of heat dissipation fins 7, and the two sides of the heat dissipation fins 7 are bent and provided with folded edges 71 that conflict with each other, and the folded edges 71 are arranged in a semicircular shape.

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, the second cooling pipe 5 is a tube body with a smooth outer wall, and is located behind the first cooling pipe 4 and vertically arranged between the water inlet pipe 2 and the water outlet pipe 3 , while the second cooling pipe 5 is aligned with the first cooling pipe 4 .

[0030] like Figure 1 , Figure 2 , Figure 3 As shown, the third cooling pipe 6 is a tube body with a smooth outer wall, and is located behind the second cooling pipe 5 and vertically arranged between the water inlet pipe 2 and the water outlet pipe 3. At the same time, a pair of third cooling pipes 6 are distributed on both sides of the mounting base 1.

[0031] When the burner head is working, a flame is generated in the mounting base 1. At this time, the flame passes through the first cooling tube 4, the second cooling tube 5 and the third cooling tube 6 in sequence, so that the combustion temperature of the flame is reduced by water cooling, so that the combustion is more complete and stable, and the formation of nitrogen oxides is reduced.

[0032] Since the first cooling tube 4 is provided with heat dissipating fins 7, the combustion gas can flow evenly between the heat dissipating fins 7 to form a nozzle-like structure, thereby shortening the flame length, further making the combustion more complete and stable, and reducing the formation of nitrogen oxides.

[0033] Furthermore, by providing the folded edge 71 on the heat dissipating fin 7, on the one hand, the stable flow direction of the gas can be ensured and the gas can be separated so that the two groups of gas are mixed together to form a vortex to ensure combustion stability; on the other hand, welding is facilitated to achieve rapid fixation of the first cooling tube 4.

[0034] When passing through the second cooling tube 5, the noise generated by the flame combustion can be reduced. At the same time, when passing through the third cooling tube 6, the third cooling tube 6 can intercept the flame at both sides to prevent the flame from running outward, thereby ensuring the stability of the flame.

[0035] like Figure 1 , Figure 2 , Figure 3 As shown, the mounting base 1 is provided with multiple layers of fire-blocking plates 8 located in front of the first cooling tube 4. The fire-blocking plates 8 include a bottom plate 81 and a top plate 82. The bottom plate 81 is horizontally arranged, and the top plate 82 is arranged in a wave shape. Multiple rows of air permeable channels 83 are formed between the top plate 82 and the upper and lower layers of the bottom plates 81.

[0036] like Figure 1 , Figure 2 , Figure 3 As shown, in the illustrations of this embodiment, in order to clearly identify the structure of the fire barrier board 8, only a few layers of the fire barrier board 8 are shown, and there are gaps between the fire barrier boards 8. In actual use, there are no gaps between the fire barrier boards 8, and they are spread all over the front of the mounting seat 1.

[0037] Therefore, when the gas passes through the position of the fire barrier plate 8, by setting the fire barrier plate 8 with evenly distributed air permeable channels 83, the gas can evenly enter the combustion head, allowing the gas to burn as fully as possible, and no combustion will occur on the fire barrier plate 8, thereby preventing backfire.

[0038] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A combustion head of a fully premixed water-cooled burner, characterized in that: include: A mounting base (1) for fixing on a boiler; A water inlet pipe (2) is horizontally arranged above the mounting seat (1); A water outlet pipe (3) is horizontally arranged below the mounting seat (1); The first cooling pipe (4) is vertically arranged between the water inlet pipe (2) and the water outlet pipe (3), and a plurality of layers of heat dissipation fins (7) are arranged on the outer wall.

2. The combustion head of a fully premixed water-cooled burner according to claim 1, characterized in that: The heat dissipation fins (7) are bent on both sides to form folded edges (71) that abut against each other.

3. The combustion head of a fully premixed water-cooled burner according to claim 2, characterized in that: The folded edge (71) is arranged in a semicircular shape.

4. The combustion head of a fully premixed water-cooled burner according to claim 1, characterized in that: A second cooling pipe (5) with a smooth outer wall is arranged behind the first cooling pipe (4), and the second cooling pipe (5) is vertically arranged between the water inlet pipe (2) and the water outlet pipe (3).

5. The combustion head of a fully premixed water-cooled burner according to claim 4, characterized in that: A pair of third cooling pipes (6) with smooth outer walls are arranged behind the second cooling pipe (5); the third cooling pipes (6) are vertically arranged between the water inlet pipe (2) and the water outlet pipe (3), and are distributed on both sides of the mounting seat (1).

6. The combustion head of a fully premixed water-cooled burner according to claim 1, characterized in that: The mounting seat (1) is provided with multiple layers of fire-blocking plates (8) located in front of the first cooling pipe (4).

7. The combustion head of a fully premixed water-cooled burner according to claim 6, characterized in that: The fire-blocking plate (8) comprises a bottom plate (81) and a top plate (82); the bottom plate (81) is arranged horizontally, and the top plate (82) is arranged in a wave shape; a plurality of rows of air-permeable channels (83) are formed between the top plate (82) and the upper and lower layers of the bottom plate (81).

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