Combustor with premixing function

Abstract

The utility model relates to the technical field of combustors, in particular to a combustor with a premixing function. The air interface is communicated with the furnace end through a connecting pipe; the gas connecting pipe is arranged in the air connector; the buffer plate is arranged in the air interface, and a plurality of buffer holes are formed in the buffer plate; the gas outlet is formed in the gas connecting pipe and located in the side, facing the furnace end, of the buffer plate. The diameter of the buffer holes of the buffer plate outer ring is larger than that of the buffer holes of the buffer plate inner ring. The furnace end comprises a first cavity, a second cavity and a third cavity. And a mesh plate is arranged between the second cavity and the third cavity. A flow guide column is arranged between the first cavity and the second cavity. The flow guide column comprises a flow guide tip which faces the connecting pipe; the flow guide slopes are arranged on two sides of the flow guide tip at a certain included angle; and the flow guide back is arranged on the back side of the flow guide tip. Fuel gas and air can be further fully mixed, and the heat efficiency and the power of the gas cooker are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a burner with a premixing function. Background Art

[0002] The burner is one of the important components of a gas stove. It mainly realizes the mixing of gas and air and adjusts the mixing ratio of gas and air by adjusting the opening of the air valve, thereby adjusting the fire power.

[0003] Most of the current gas stoves use only a single gas chamber at the burner head to mix the gas. Their common feature is that they only include one gas mixing chamber. Air and gas enter the gas mixing chamber through the air inlet channel and mix, and then burn on the heating element at the outlet of the gas mixing chamber. Although the burner with a single gas mixing chamber structure meets the basic working condition requirements of a stove, it has the defects of unstable combustion and low thermal efficiency due to uneven gas mixing. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model provides a burner with a premixing function, which can further fully mix the gas and air, and significantly improve the thermal efficiency and power of the gas cooker.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A burner with a premixing function, comprising:

[0007] stove top;

[0008] The air interface is connected with the furnace head through a connecting pipe;

[0009] The gas pipe is installed in the air interface;

[0010] A buffer plate is arranged in the air interface, and a plurality of buffer holes are arranged on the buffer plate;

[0011] The gas outlet is arranged on the gas connecting pipe, and the gas outlet is located on the side of the buffer plate facing the burner head.

[0012] Furthermore, the diameter of the buffer hole of the outer circle of the buffer plate is greater than the diameter of the buffer hole of the inner circle of the buffer plate.

[0013] Furthermore, turbine blades are arranged in the air interface.

[0014] Furthermore, the stove head comprises:

[0015] A first cavity, the first cavity is communicated with the connecting pipe;

[0016] a second cavity, the second cavity being communicated with the first cavity;

[0017] The third cavity is communicated with the second cavity, and an outlet is arranged at the upper end of the third cavity.

[0018] Furthermore, a mesh plate is provided between the second cavity and the third cavity.

[0019] Furthermore, a guide column is provided between the first cavity and the second cavity.

[0020] Furthermore, the guide column comprises:

[0021] A guide tip, the guide tip faces the connecting pipe;

[0022] The diversion slope is arranged at a certain angle on both sides of the diversion tip;

[0023] The back side of the guide is arranged on the back side of the guide tip.

[0024] Furthermore, the guide columns have several circles, and the guide columns in the outer circle are arranged alternately with the guide columns in the inner circle.

[0025] Furthermore, a downwardly protruding guide angle is provided in the first cavity, and the guide angle is provided above the connecting pipe.

[0026] Furthermore, the burner head includes a fire starter gas pipe and a fire starter air supply port, and the fire starter gas pipe and the fire starter air supply port are interconnected.

[0027] Beneficial effects of the utility model:

[0028] (1) The buffer plate can buffer the air flowing to the burner, distribute the air evenly, and limit the air flow.

[0029] (2) Turbine blades can change the flow direction of the mixed gas, making the gas mixing more uniform.

[0030] (3) The guide angle can reduce the flow resistance of the mixed gas and make the flow of the mixed gas smoother.

[0031] (4) The guide column and mesh plate can further mix the gas and evenly distribute the mixed gas around. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Figure 1 It is a structural schematic diagram of the utility model;

[0034] Figure 2 yes Figure 1 A local enlarged view of position A;

[0035] Figure 3 yes Figure 1 A local enlarged view of position B;

[0036] Figure 4 It is a schematic diagram of the structure of the furnace head;

[0037] Figure 5 yes Figure 4 A local enlarged view of the C position.

[0038] In the picture:

[0039] 1. Air interface, 2. Buffer plate, 3. Gas pipe, 4. Gas outlet, 5. Turbine fan blade, 6. Connecting pipe, 7. Fire starter air supply port, 8. Fire starter gas pipe, 9. First cavity, 10. Second cavity, 11. Third cavity, 12. Exhaust port, 13. Mesh plate, 14. Guide column, 15. Guide angle

[0040] 201. Buffer hole

[0041] 1401. diversion tip, 1402. diversion slope, 1403. diversion back. DETAILED DESCRIPTION

[0042] The utility model is further described in detail below with reference to the accompanying drawings.

[0043] A burner with a premixing function, the specific structure includes a burner head, a fire starter gas pipe 8 and a fire starter air supply port 7 are arranged at the center of the burner head, and the fire starter gas pipe 8 and the fire starter air supply port 7 are interconnected.

[0044] The air interface 1 is connected to the burner through the connecting pipe 6, the gas pipe 3 is arranged in the air interface 1, and the buffer plate 2 is arranged in the air interface 1. The buffer plate 2 can buffer the air flowing to the burner, make the air evenly distributed, and limit the air flow. The gas pipe 3 is arranged at the center of the buffer plate 2, and a plurality of buffer holes 201 are arranged on the buffer plate 2. The diameter of the buffer holes 201 in the outer circle of the buffer plate 2 is larger than the diameter of the buffer holes 201 in the inner circle of the buffer plate 2. By changing the diameter of the buffer holes 201, the circulation and mixing of the inner and outer layer gases can be made more uniform.

[0045] The gas outlet 4 is arranged on the gas pipe 3, and the gas outlet 4 is located on the side of the buffer plate 2 facing the burner. The gas outlet 4 is a circle of small round holes, and the gas is ejected from the circle of small round holes and preliminarily mixed with the air. The air interface 1 is provided with a turbine blade 5, and the turbine blade 5 is arranged on the side of the gas outlet 4 facing the burner. The gas outlet 4 is located between the turbine blade 5 and the buffer plate 2. The turbine blade 5 can change the flow direction of the mixed gas to make the gas mixing more uniform.

[0046] The specific structure of the burner head includes a first cavity 9, a second cavity 10 and a third cavity 11 which are connected in sequence, and the first cavity 9, the second cavity 10 and the third cavity 11 are all rotary structures. The first cavity 9 is connected to the connecting pipe 6, the second cavity 10 is connected to the first cavity 9, and the third cavity 11 is connected to the second cavity 10. The upper end of the third cavity 11 is provided with an exhaust port 12, and the mixed gas passes through the connecting pipe 6, the first cavity 9, the second cavity 10 and the third cavity 11 in sequence and is discharged from the exhaust port 12.

[0047] In order to further mix the gases and evenly distribute the mixed gases around, an annular mesh plate 13 is provided between the second cavity 10 and the third cavity 11. The mesh plate 13 is covered with air holes, and the mixed gases in the second cavity 10 enter the third cavity 11 through the mesh plate 13. In addition, a guide column 14 is provided between the first cavity 9 and the second cavity 10, and the mixed gases in the first cavity 9 enter the second cavity 10 through the guide column 14.

[0048] The specific structure of the guide column 14 includes a guide tip 1401, the guide tip 1401 faces the connecting pipe 6, the guide slope 1402 is arranged at a certain angle on both sides of the guide tip 1401, and the guide back 1403 is arranged on the back side of the guide tip 1401. The guide tip 1401, the guide slope 1402 and the guide back 1403 form a triangular column. The guide tip 1401 can adopt an arc angle, and the guide slope 1402 and the guide back 1403 can adopt an arc surface. In a specific implementation, the guide slope 1402 adopts an inwardly concave arc surface, and the guide back 1403 adopts an outwardly convex arc surface.

[0049] The guide columns 14 have several circles, and the guide columns 14 in the outer circle are arranged alternately with the guide columns 14 in the inner circle, so as to further mix the gas and evenly distribute the mixed gas to the surroundings.

[0050] A downwardly protruding guide angle 15 is provided in the first cavity 9 . The guide angle 15 is provided above the connecting pipe 6 . The guide angle 15 can reduce the flow resistance of the mixed gas flowing out of the connecting pipe 6 , so that the mixed gas flows more smoothly.

[0051] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A burner with a premixing function, characterized in that: include: stove top; The air interface (1) is connected to the furnace head via a connecting pipe (6); A gas pipe (3) is arranged in the air interface (1); A buffer plate (2) is arranged in the air interface (1), and a plurality of buffer holes (201) are arranged on the buffer plate (2); A gas outlet (4) is arranged on the gas connecting pipe (3), and the gas outlet (4) is located on a side of the buffer plate (2) facing the burner head.

2. A burner with a premixing function according to claim 1, characterized in that: The diameter of the buffer hole (201) on the outer ring of the buffer plate (2) is greater than the diameter of the buffer hole (201) on the inner ring of the buffer plate (2).

3. A burner with a premixing function according to claim 1, characterized in that: The air interface (1) is provided with a turbine blade (5).

4. A burner with a premixing function according to claim 1, characterized in that: The burner head comprises: A first cavity (9), the first cavity (9) being in communication with the connecting pipe (6); A second cavity (10), the second cavity (10) being in communication with the first cavity (9); A third cavity (11), the third cavity (11) being in communication with the second cavity (10), and an outlet (12) being provided at an upper end of the third cavity (11).

5. A burner with premixing function according to claim 4, characterized in that: A mesh plate (13) is provided between the second cavity (10) and the third cavity (11).

6. A burner with a premixing function according to claim 4, characterized in that: A flow guide column (14) is provided between the first cavity (9) and the second cavity (10).

7. A burner with premixing function according to claim 6, characterized in that: The guide column (14) comprises: A flow guide tip (1401), the flow guide tip (1401) facing the connecting pipe (6); The diversion slope (1402) is arranged at a certain angle on both sides of the diversion tip (1401); The back side of the flow guide (1403) is arranged on the back side of the flow guide tip (1401).

8. A burner with a premixing function according to claim 7, characterized in that: The guide columns (14) have a plurality of circles, and the guide columns (14) in the outer circle and the guide columns (14) in the inner circle are arranged alternately.

9. The burner with premixing function according to claim 4, characterized in that: A downwardly protruding guide angle (15) is provided in the first cavity (9), and the guide angle (15) is arranged above the connecting pipe (6).

10. The burner with premixing function according to claim 1, characterized in that: The burner head comprises a fire starter gas pipe (8) and a fire starter air supply port (7), and the fire starter gas pipe (8) and the fire starter air supply port (7) are interconnected.

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