Combustion device capable of improving combustion efficiency

Abstract

The utility model provides a combustion device capable of improving combustion efficiency, which comprises a furnace body, a combustor and a flow guide group, the furnace body comprises a furnace basin, a furnace shell and a baking tray, the furnace shell is sleeved on the furnace basin, the furnace body is provided with a combustion area and a heat insulation area, the combustion area is arranged between the furnace basin and the baking tray, the heat insulation area is arranged between the furnace basin and the furnace shell, and the flow guide group is arranged on the furnace shell. The furnace basin is provided with a through hole, the through hole is communicated with the combustion area and the heat insulation area, the combustor comprises a combustion pipe, a nozzle and a gas mixing pipe, the combustion pipe is arranged in the combustion area, the nozzle is arranged in the through hole, the gas mixing pipe is provided with a gas mixing opening, the flow guide set comprises a cap, the cap is arranged on the nozzle in a sleeving mode and covers the through hole, and the gas mixing pipe is connected with the nozzle and the combustion pipe. The gas mixing opening is formed in the cap, and the combustion efficiency of the combustion device can be improved through the structure.

Description

Technical Field

[0001] The utility model mainly relates to a combustion device, in particular to a combustion device capable of improving combustion efficiency. Background Art

[0002] Please refer to the patent case of "Combustion Device with High Combustion Efficiency" of Taiwan Patent No. I797007 in China. It is a combustion device, including a base and a burner tube. The burner tube is arranged inside the base. The burner tube includes a gas mixing section and an air outlet section. The gas mixing section extends axially along a horizontal and virtual reference line. One end of the gas mixing section is provided with an air inlet, and a first gas mixing port is arranged on the outer peripheral edge in the radial direction. The gas mixing section has a first side and a second side opposite to the first side. The first gas mixing port is arranged on the second side. The air outlet section is connected to one end of the gas mixing section opposite to the air inlet. The air outlet section is provided with a straight-through part and a first bending part. The straight-through part extends axially along the reference line and one end is connected to the gas mixing section. One end of the first bending part is connected to the end of the straight-through part opposite to the gas mixing section. The bending direction of the first bending part is the same as the side where the first gas mixing port faces the gas mixing section.

[0003] However, the burner tube of the above combustion device is arranged inside the base with a closed side. During the combustion process of the combustion device, high temperature will be generated inside the base. Even if the base can suck in air from the bottom due to the convection effect, the air expands when heated and its density decreases, resulting in limited combustion support effect of the air. Similarly, the air sucked in by the first gas mixing port arranged in the gas mixing section is also high-temperature air heated, and the effect on improving combustion efficiency is not good. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a combustion device capable of improving combustion efficiency.

[0005] The present utility model provides a combustion device capable of improving combustion efficiency, which includes a furnace body, a burner and a flow guiding group. The furnace body includes a furnace basin, a furnace shell and a baking tray. The furnace shell is sleeved on the outer peripheral edge of the furnace basin in the horizontal direction. An inner space of the furnace body is provided with a combustion zone and a heat insulation zone. The combustion zone is arranged between the furnace basin and the baking tray. The heat insulation zone is arranged on a side of the furnace basin opposite to the baking tray and between the furnace basin and the furnace shell. The furnace basin is provided with a first through hole, and the first through hole communicates the combustion zone with the heat insulation zone. The burner includes a first combustion tube, a first nozzle and a first gas mixing tube. The first combustion tube is arranged in the combustion zone. The first nozzle is arranged in the first through hole. The first gas mixing tube is provided with a first gas mixing port communicating its interior with the exterior. The flow guiding group includes a first cap. The first cap is sleeved on the first nozzle and covers a side of the first through hole adjacent to the baking tray. One end of the first gas mixing tube is connected to the first nozzle, and the other end protrudes out of the first cap and is connected to the first combustion tube. The first gas mixing port is arranged in the first cap.

[0006] The first combustion tube is arc-shaped with a virtual center line extending vertically as the center. The baking tray is connected to an upper edge of the furnace shell in the vertical direction. The baking tray is provided with an oil dripping hole with the center line as the center. The distance from the inner peripheral edge of the oil dripping hole to the center line forms a first radius. The distance from the inner peripheral edge of the first combustion tube to the center line forms a second radius. The second radius is greater than the first radius.

[0007] The burner includes a second combustion tube which is arc-shaped with the center line as the center. The second combustion tube is arranged at a position in the combustion zone where the height in the vertical direction is the same as that of the first combustion tube. The distance from the inner peripheral edge of the second combustion tube to the center line forms a third radius. The third radius is less than the second radius.

[0008] The furnace basin is provided with a second through hole, and the second through hole communicates the combustion zone with the heat insulation zone. The burner includes a second nozzle and a second gas mixing tube. The second nozzle is arranged in the second through hole. The flow guiding group includes a second cap. The second cap is sleeved on the second nozzle and covers a side of the second through hole adjacent to the baking tray. One end of the second gas mixing tube is connected to the second nozzle, and the other end protrudes out of the second cap and is connected to the second combustion tube.

[0009] The burner is provided with a virtual first connection line and a second connection line. The first connection line passes through the first nozzle and the center line. The second connection line passes through the second nozzle and the center line. The included angle formed between the first connection line and the second connection line is greater than 150 degrees and less than 210 degrees.

[0010] The first gas mixing port is arranged on the side surface of the first gas mixing pipe along the horizontal direction. A second gas mixing port communicating the inside and the outside is arranged on the side surface of the second gas mixing pipe along the horizontal direction, and the second gas mixing port is arranged inside the second cap.

[0011] The burner includes a first supply pipe and a second supply pipe. The first supply pipe is arranged in the heat insulation area and one end thereof is connected to the first nozzle. The first supply pipe can supply fuel to the first nozzle. The second supply pipe is arranged in the heat insulation area and one end thereof is connected to the second nozzle. The second supply pipe can supply fuel to the second nozzle.

[0012] An oil collecting part is arranged on the inner peripheral edge of the furnace basin adjacent to one side of the combustion area. The oil collecting part is conical with the center line as the center. The distance from the inner peripheral edge of the oil collecting part adjacent to one end of the baking tray to the center line is greater than the first radius and less than the second radius. The distance from the inner peripheral edge of the oil collecting part opposite to the baking tray end to the center line is less than the first radius.

[0013] An oil collecting hole is arranged in the furnace basin with the center line as the center. The oil collecting hole penetrates through the furnace basin and is connected to the end of the oil collecting part opposite to the baking tray.

[0014] The advantage of the utility model is that the combustion efficiency can be improved through the above structure. Description of the Drawings

[0015] Figure 1 It is a three-dimensional external view of the combustion device of the utility model that can improve the combustion efficiency.

[0016] Figure 2 It is a three-dimensional exploded view of the combustion device of the utility model that can improve the combustion efficiency.

[0017] Figure 3 It is a three-dimensional exploded view of the burner of the combustion device of the utility model that can improve the combustion efficiency.

[0018] Figure 4 It is a three-dimensional exploded view of the first cap of the combustion device of the utility model that can improve the combustion efficiency.

[0019] Figure 5 It is a three-dimensional exploded view of the second cap of the combustion device of the utility model that can improve the combustion efficiency.

[0020] Figure 6 It is a vertical sectional structure diagram of the combustion device of the utility model that can improve the combustion efficiency.

[0021] Figure 7 It is a sectional structure diagram of the first cap of the combustion device of the utility model that can improve the combustion efficiency.

[0022] Figure 8This is a sectional view of the second cap of the combustion device of the present utility model that can improve the combustion efficiency.

[0023] Figure 9 This is a sectional view of the blade of the combustion device of the present utility model that can improve the combustion efficiency along the horizontal direction.

[0024] Figure 10 This is a sectional view of the burner of the combustion device of the present utility model that can improve the combustion efficiency along the horizontal direction.

[0025] Description of reference numerals: 10 - combustion device; 20 - furnace body; 21 - combustion zone; 22 - air inlet hole; 23 - furnace basin; 231 - first through hole; 232 - second through hole; 233 - oil collecting part; 234 - oil collecting hole; 24 - furnace shell; 25 - baking tray; 251 - oil dripping hole; 26 - heat insulation zone; 30 - burner; 31 - first combustion tube; 32 - second combustion tube; 33 - first nozzle; 34 - second nozzle; 35 - first mixing gas pipe; 351 - first mixing gas port; 36 - second mixing gas pipe; 361 - second mixing gas port; 37 - first supply pipe; 38 - second supply pipe; 40 - diversion group; 41 - first blade; 411 - convex surface; 42 - second blade; 421 - concave surface; 43 - third blade; 44 - positioning ring; 45 - first cap; 46 - second cap; C - center line; L1 - first connection line; L2 - second connection line; R1 - first radius; R2 - second radius; R3 - third radius; W1 - first width; W2 - second width. Detailed implementation manners

[0026] Please refer to Figures 1 to 10 as shown, which are respectively the three-dimensional external view, three-dimensional exploded view and sectional view of the combustion device of the present utility model that can improve the combustion efficiency. The present utility model provides a combustion device 10 that can improve the combustion efficiency, including a furnace body 20, a burner 30 and a diversion group 40; wherein:

[0027] An internal space of the furnace body 20 is provided with a combustion zone 21, and a plurality of air inlet holes 22 are arranged on the outer peripheral edge of the furnace body 20 along the horizontal direction, and the air inlet holes 22 communicate the combustion zone 21 with the outside of the furnace body 20.

[0028] The burner 30 includes a first combustion tube 31 that is arc-shaped with a virtual center line C extending vertically as the center, and the first combustion tube 31 is arranged in the combustion zone 21.

[0029] The flow guide group 40 includes a first blade 41, a second blade 42 adjacent to the first blade 41, and several third blades 43. The first blade 41, the second blade 42, and the several third blades 43 are respectively sheet-shaped and have the same replaceable structure. The first blade 41, the second blade 42, and the several third blades 43 are arranged at a position in the combustion area 21 where the vertical height is the same as that of the air inlet holes 22. The first blade 41, the second blade 42, and the several third blades 43 are arranged in an equidistant annular pattern centered on the center line C and are disposed between the air inlet holes 22 and the first combustion tube 31. A convex surface 411 is provided on one side of the first blade 41 adjacent to the second blade 42, and a concave surface 421 is provided on one side of the second blade 42 adjacent to the first blade 41. The distance from one end of the convex surface 411 adjacent to the center line C to the concave surface 421 forms a first width W1, and the distance from one end of the concave surface 421 opposite to the center line C to the convex surface 411 forms a second width W2. The second width W2 is greater than the first width W1.

[0030] The furnace body 20 includes a furnace basin 23, a furnace shell 24, and a baking tray 25. The furnace shell 24 is sleeved on the outer peripheral edge of the furnace basin 23 in the horizontal direction. The several air inlet holes 22 are provided on the furnace shell 24. The baking tray 25 is connected to the upper edge of the furnace shell 24 in the vertical direction. The combustion area 21 is provided between the furnace basin 23 and the baking tray 25. The baking tray 25 is provided with an oil dripping hole 251 centered on the center line C. The distance from the inner peripheral edge of the oil dripping hole 251 to the center line C forms a first radius R1, and the distance from the inner peripheral edge of the first combustion tube 31 to the center line C forms a second radius R2. The second radius R2 is greater than the first radius R1.

[0031] The flow guide group 40 includes a positioning ring 44. The positioning ring 44 is disposed on the side of the first blade 41, the second blade 42, and the several third blades 43 opposite to the furnace basin 23 and is adjacent to the baking tray 25. The first blade 41, the second blade 42, and the several third blades 43 are respectively connected to the positioning ring 44 in a plug-in manner.

[0032] The burner 30 includes a second combustion tube 32 that is arc-shaped centered on the center line C. The second combustion tube 32 is disposed at a position in the combustion area 21 where the vertical height is the same as that of the first combustion tube 31. The distance from the inner peripheral edge of the second combustion tube 32 to the center line C forms a third radius R3. The third radius R3 is less than the second radius R2.

[0033] An insulating area 26 is provided in the internal space of the furnace body 20. The insulating area 26 is provided on the side of the furnace basin 23 opposite to the baking tray 25 and between the furnace basin 23 and the furnace shell 24. The furnace basin 23 is provided with a first through hole 231 and a second through hole 232. Both the first through hole 231 and the second through hole 232 are respectively communicated with the combustion area 21 and the insulating area 26. The burner 30 includes a first nozzle 33, a second nozzle 34, a first mixing pipe 35 and a second mixing pipe 36. The first nozzle 33 is arranged in the first through hole 231. The second nozzle 34 is arranged in the second through hole 232. The guiding group 40 includes a first cap 45 and a second cap 46. The first cap 45 is sleeved on the first nozzle 33 and covers the side of the first through hole 231 adjacent to the baking tray 25. The second cap 46 is sleeved on the second nozzle 34 and covers the side of the second through hole 232 adjacent to the baking tray 25. One end of the first mixing pipe 35 is connected to the first nozzle 33, and the other end protrudes out of the first cap 45 and is connected to the first combustion pipe 31. One end of the second mixing pipe 36 is connected to the second nozzle 34, and the other end protrudes out of the second cap 46 and is connected to the second combustion pipe 32.

[0034] The burner 30 is provided with a virtual first connection line L1 and a second connection line L2. The first connection line L1 passes through the first nozzle 33 and the center line C. The second connection line L2 passes through the second nozzle 34 and the center line C. The included angle formed between the first connection line L1 and the second connection line L2 is greater than 150 degrees and less than 210 degrees.

[0035] A first air mixing port 351 communicating the inside and the outside is provided on the side of the first mixing pipe 35 along the horizontal direction. The first air mixing port 351 is arranged in the first cap 45. A second air mixing port 361 communicating the inside and the outside is provided on the side of the second mixing pipe 36 along the horizontal direction. The second air mixing port 361 is arranged in the second cap 46.

[0036] The burner 30 includes a first supply pipe 37 and a second supply pipe 38. The first supply pipe 37 is arranged in the insulating area 26 and one end is connected to the first nozzle 33. The first supply pipe 37 can supply fuel to the first nozzle 33. The second supply pipe 38 is arranged in the insulating area 26 and one end is connected to the second nozzle 34. The second supply pipe 38 can supply fuel to the second nozzle 34.

[0037] An oil collecting part 233 is arranged on the inner peripheral edge of the furnace basin 23 adjacent to one side of the combustion area 21. The oil collecting part 233 is conical with the center line C as the center. The distance from the inner peripheral edge of the oil collecting part 233 adjacent to one end of the baking tray 25 to the center line C is greater than the first radius R1 and less than the second radius R2. The distance from the inner peripheral edge of the oil collecting part 233 opposite to one end of the baking tray 25 to the center line C is less than the first radius R1.

[0038] An oil collecting hole 234 is arranged in the furnace basin 23 with the center line C as the center. The oil collecting hole 234 penetrates through the furnace basin 23 and is connected to the end of the oil collecting part 233 opposite to the baking tray 25.

[0039] Through the above structure, the combustion efficiency of the combustion device 10 can be improved. When the combustion device 10 is in use, the hot air and waste gas generated by the combustion of the first combustion tube 31 and the second combustion tube 32 in the combustion area 21 can be discharged through the oil dripping hole 251, and the air outside the combustion device 10 can be inhaled through the gap between the first blade 41 and the second blade 42 or the gaps between the several third blades 43. The cold air with a high density outside has a better combustion supporting effect, and the design of the gap between the first blade 41 and the second blade 42 being wide outside and narrow inside can accelerate the air flow and further improve the convection efficiency. Similarly, when the first nozzle 33 supplies fuel to the first combustion tube 31, it can inhale air for combustion support through the first air mixing port 351. By using the first cap 45 and the first through hole 231, the first air mixing port 351 can inhale the relatively cold air in the heat insulation area 26, improving the combustion efficiency of the first combustion tube 31.

[0040] From the above, the following advantages of the present utility model can be summarized:

[0041] The present utility model provides a combustion device capable of improving combustion efficiency. The combustion device includes a furnace body, a burner, and a flow guiding group. The furnace body includes a furnace basin, a furnace shell, and a baking tray. The furnace shell is sleeved on the outer peripheral edge of the furnace basin in the horizontal direction. An inner space of the furnace body is provided with a combustion zone and a heat insulation zone. The combustion zone is arranged between the furnace basin and the baking tray. The heat insulation zone is arranged on a side of the furnace basin opposite to the baking tray and between the furnace basin and the furnace shell. The furnace basin is provided with a first through hole which communicates the combustion zone with the heat insulation zone. The burner includes a first combustion tube, a first nozzle, and a first gas mixing tube. The first combustion tube is arranged in the combustion zone. The first nozzle is arranged in the first through hole. The first gas mixing tube is provided with a first gas mixing port communicating its interior with the exterior. The flow guiding group includes a first cap. The first cap is sleeved on the first nozzle and covers a side of the first through hole adjacent to the baking tray. One end of the first gas mixing tube is connected to the first nozzle, and the other end protrudes out of the first cap and is connected to the first combustion tube. The first gas mixing port is arranged in the first cap. The combustion device can improve combustion efficiency through the above structure.

Claims

1. A combustion device capable of improving combustion efficiency, characterized in that: Included are: A furnace body, the furnace body comprising a furnace basin, a furnace shell and a baking tray, the furnace shell is sleeved on the outer periphery of the furnace basin in the horizontal direction, the internal space of the furnace body is provided with a combustion zone and a heat insulation zone, the combustion zone is provided between the furnace basin and the baking tray, the heat insulation zone is provided on the side of the furnace basin opposite to the baking tray and is provided between the furnace basin and the furnace shell, the furnace basin is provided with a first through hole, the first through hole connects the combustion zone and the heat insulation zone; A burner, comprising a first combustion tube, a first nozzle and a first gas mixing tube, wherein the first combustion tube is arranged in the combustion zone, the first nozzle is arranged in the first through hole, and the first gas mixing tube is provided with a first gas mixing port communicating with the inside and the outside; A guide group includes a first cap, which is sleeved on the first nozzle and covers the side of the first through hole adjacent to the baking tray. One end of the first mixing pipe is connected to the first nozzle and the other end protrudes out of the first cap and is connected to the first combustion pipe. The first mixing port is arranged in the first cap.

2. The combustion device capable of improving combustion efficiency according to claim 1, characterized in that: The first combustion tube is arc-shaped with a virtual center line extending vertically as the center, the baking tray is connected to the upper edge of the furnace shell along the vertical direction, and the baking tray is provided with an oil dripping hole with the center line as the center. The distance from the inner periphery of the oil dripping hole to the center line forms a first radius, and the distance from the inner periphery of the first combustion tube to the center line forms a second radius, and the second radius is greater than the first radius.

3. The combustion device capable of improving combustion efficiency according to claim 2, characterized in that: The burner includes a second combustion tube in an arc shape with the center line as the center. The second combustion tube is arranged at the same position as the first combustion tube along the vertical height in the combustion zone. The distance from the inner periphery of the second combustion tube to the center line forms a third radius, and the third radius is smaller than the second radius.

4. The combustion device capable of improving combustion efficiency as claimed in claim 3, characterized in that: The stove basin is provided with a second through hole, which connects the combustion area and the insulation area. The burner includes a second nozzle and a second gas mixing pipe. The second nozzle is arranged in the second through hole. The guide group includes a second cap, which is sleeved on the second nozzle and covers a side of the second through hole adjacent to the baking tray. One end of the second gas mixing pipe is connected to the second nozzle and the other end protrudes out of the second cap and is connected to the second combustion pipe.

5. The combustion device capable of improving combustion efficiency as claimed in claim 4, characterized in that: The burner is provided with a virtual first connecting line and a second connecting line, the first connecting line passes through the first nozzle and the center line, the second connecting line passes through the second nozzle and the center line, and the angle formed between the first connecting line and the second connecting line is greater than 150 degrees and less than 210 degrees.

6. The combustion device capable of improving combustion efficiency according to claim 4, characterized in that: The first gas mixing port is arranged on the side of the first gas mixing pipe along the horizontal direction, and the side of the second gas mixing pipe along the horizontal direction is provided with a second gas mixing port connecting the inside and the outside thereof, and the second gas mixing port is arranged in the second cap.

7. The combustion device capable of improving combustion efficiency according to claim 4, characterized in that: The burner includes a first supply pipe and a second supply pipe. The first supply pipe is arranged in the insulation area and one end of which is connected to the first nozzle. The first supply pipe can provide fuel to the first nozzle. The second supply pipe is arranged in the insulation area and one end of which is connected to the second nozzle. The second supply pipe can provide fuel to the second nozzle.

8. The combustion device capable of improving combustion efficiency as claimed in claim 2, characterized in that: An oil collecting portion is provided on the inner circumference of the stove basin adjacent to the combustion zone, and the oil collecting portion is conical with the center line as the center. The distance from the inner circumference of the oil collecting portion adjacent to one end of the baking tray to the center line is greater than the first radius and less than the second radius, and the distance from the inner circumference of the oil collecting portion opposite to the end of the baking tray to the center line is less than the first radius.

9. The combustion device capable of improving combustion efficiency according to claim 8, characterized in that: The oven basin is provided with an oil collecting hole with the center line as the center. The oil collecting hole penetrates the oven basin and is connected to an end of the oil collecting portion opposite to the baking tray.

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