Combustion promoter

Abstract

A combustion promoter capable of promoting combustion in a flame is provided. [Solution] In this invention, a combustion promoter (1) is provided outside a combustion space (2) where a flame is generated, and is separated by a horizontal partition wall (6) from a swirl supply section (4) for swirling the air supplied to the combustion space (2) within the combustion space (2), and a swirl discharge section (5) for discharging the combustion gas swirling within the combustion space (2). A buffer wall (7) is formed facing downward on the partition wall (6) to reduce the buffering between the air flowing through the swirl supply section (4) and the combustion gas flowing through the swirl discharge section (5). The buffer wall (7) is also formed between the inlet side of the swirl supply section (4) and the outlet side of the swirl discharge section (5), or between the supply side of the swirl supply section (4) and the discharge side of the swirl discharge section (5).

Description

[Technical Field]

[0001] The present invention relates to a combustion promoter that is arranged around a combustion space in which a flame is formed to promote combustion of the flame within the combustion space. [Background technology]

[0002] The flame is formed in the space by a chemical reaction between fuel and oxygen, and is maintained in place within the space by a continuous supply of fuel and oxygen and a continuous exhaust of combustion gases produced by the combustion.

[0003] Therefore, if the supply of fuel and oxygen or the exhaust of combustion gases is disrupted by the influence of outside air, the flame will experience a drop in temperature and smoke due to incomplete combustion, and the combustion will not continue and the flame will go out.

[0004] Therefore, the inventor developed a combustion promoter that is placed around the combustion space where the flame is formed to promote combustion of the flame inside the combustion space, so that the flame can continue to burn without being affected by outside air (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-95052 Summary of the Invention [Problem to be solved by the invention]

[0006] Conventional combustion promoters are configured so that a swirl supply section, which swirls the air supplied to the combustion space inside the combustion space, and a swirl discharge section, which discharges the combustion gas swirling inside the combustion space, are separated by a horizontal partition wall outside the combustion space where the flame is formed.

[0007] This conventional combustion promoter can form a swirling flow in the combustion space and expand the flame combustion area (lengthen the flame), thereby promoting flame combustion, increasing the combustion temperature, and suppressing the generation of smoke due to incomplete combustion.

[0008] However, in conventional combustion promoters, the swirling supply section and the swirling discharge section, separated by a partition wall, are configured to be close to each other, which may result in a buffer between the air flowing through the swirling supply section and the combustion gas flowing through the swirling discharge section. [Means for solving the problem]

[0009] Therefore, in the present invention according to claim 1, in a combustion promoter separated by a horizontal partition wall, a swirling supply section for swirling the air supplied to the combustion space inside the combustion space and a swirling discharge section for discharging the combustion gas swirling inside the combustion space from the combustion space, where a flame is formed, is formed, and a buffer wall facing downward is formed on the partition wall to reduce buffering between the air flowing through the swirling supply section and the combustion gas flowing through the swirling discharge section.

[0010] Furthermore, in the present invention of claim 2, in the present invention of claim 1, the buffer wall is formed between the inlet side of the swirling supply section where air flows into the swirling supply section and the outlet side of the swirling discharge section where combustion gas flows out from the swirling discharge section.

[0011] Furthermore, in the present invention of claim 3, in the present invention of claim 1, the buffer wall is formed between the supply side of the swirling supply section where air is supplied from the swirling supply section to the combustion space and the discharge side of the swirling discharge section where combustion gas is discharged from the combustion space to the swirling discharge section. [Effects of the Invention]

[0012] The present invention provides the following effects.

[0013] In other words, in the present invention, in a combustion promoter that is separated by a horizontal partition wall outside the combustion space where a flame is formed, there is a swirling supply section for swirling the air supplied to the combustion space inside the combustion space, and a swirling discharge section for discharging the combustion gas swirling inside the combustion space from the combustion space, and a buffer wall is formed facing downward on the partition wall to alleviate the buffering between the air flowing through the swirling supply section and the combustion gas flowing through the swirling discharge section, thereby alleviating the buffering between the air flowing through the swirling supply section and the combustion gas flowing through the swirling discharge section, further promoting the combustion of the flame.

[0014] In particular, if the buffer wall is formed between the inlet side of the swirling supply section where air flows into the swirling supply section and the outlet side of the swirling discharge section where combustion gas flows out from the swirling discharge section, it is possible to reduce the buffering of the air flowing into the swirling supply section and the combustion gas flowing out from the swirling discharge section outside the combustion promoter, and it is also possible to reduce the effects of wind outside the combustion promoter.

[0015] Furthermore, if the buffer wall is formed between the supply side of the swirling supply section where air is supplied from the swirling supply section to the combustion space and the discharge side of the swirling discharge section where combustion gas is discharged from the combustion space to the swirling discharge section, it is possible to reduce the buffering of the air supplied to the combustion space and the combustion gas discharged from the combustion space inside the combustion promoter (combustion space), and it is also possible to reduce the impact on the flame inside the combustion space. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 2 is a front view showing the combustion promoter according to the first embodiment. [Figure 2] The same front cross-sectional view. [Figure 3] Same plan view. [Figure 4] The same bottom view. [Figure 5] FIG. 10 is a front view showing a combustion promoter according to a second embodiment. [Figure 6] The same front cross-sectional view. [Figure 7] Cross-sectional view of the same plane II. [Figure 8] Cross-sectional view of the same plane II-II. DETAILED DESCRIPTION OF THE INVENTION

[0017] A specific configuration of the combustion promoter according to the present invention will be described below with reference to the drawings.

[0018] [First Example] 1 to 4, the combustion promoter 1 according to the first embodiment is used by placing a combustion device such as a gas stove, burner, or alcohol lamp in the space at the center, and promotes the combustion of a flame in the combustion device. In this way, the central part of the combustion promoter 1 forms a cylindrical combustion space 2 where the flame of the combustion device is formed, and the combustion promoter 1 is arranged around this combustion space 2 to promote the combustion of the flame inside the combustion space 2.

[0019] This combustion promoter 1 has a swirling supply section 4 formed at the bottom of the annular partition 3 for swirling the air supplied from outside the combustion promoter 1 to the combustion space 2 in a fixed direction (here, counterclockwise in a plan view) inside the combustion space 2, and a swirling discharge section 5 formed at the top of the partition 3 for discharging the combustion gas swirling in a fixed direction (here, counterclockwise in a plan view) inside the combustion space 2 from the combustion space 2 to the outside of the combustion promoter 1.

[0020] As a result, the combustion promoter 1 has a configuration in which a swirl supply section 4 and a swirl discharge section 5 are separated from each other by a horizontal partition body 3 outside the combustion space 2 .

[0021] The partition body 3 forms a horizontal, annular partition wall 6 in the center, an outer buffer wall 7 that slopes downward in the radial direction on the outside of the outer peripheral edge of the partition wall 6, and an inner buffer wall 8 that slopes downward toward the center on the inside of the inner peripheral edge of the partition wall 6.

[0022] Here, the swirl supply section 4 has a plurality of (here, nine) straightening plates 9 (9a to 9i) arranged at regular intervals in the circumferential direction, inclined in a fixed direction, between the inner peripheral edge and the outer peripheral edge of the partition body 3. Here, the inner end and outer end of each straightening plate 9 are arranged on the same circle, and the outer end of each straightening plate 9 is shifted in a fixed direction in the circumferential direction (here, clockwise in plan view) relative to the inner end, so that air passing from the outside to the inside between adjacent straightening plates 9, 9 swirls in a fixed direction (here, counterclockwise in plan view) inside the combustion space 2.

[0023] As a result, the swirl supply unit 4 supplies air from the outside toward the combustion space 2 inside. At this time, the air is supplied into the combustion space 2 in a fixed direction (here, counterclockwise in a plan view) due to the action of the straightening vane 9. Therefore, inside the combustion space 2, the air is in a swirling state in a fixed direction (here, counterclockwise in a plan view). Then, the fuel and air supplied to the combustion space 2 from the combustion device react to form a flame, and combustion gas is generated after the reaction. Because the inside of the combustion space 2 is in a swirling state, the reaction area (flame) between the air (oxygen) and fuel expands (the flame becomes longer), which promotes flame combustion, increases the combustion temperature, and suppresses the generation of smoke due to incomplete combustion. The generated combustion gas flows in a swirling state to the swirl discharge unit 5.

[0024] In the above-mentioned swirl supply section 4, the straightening plates 9 are formed on the buffer walls 7, 8 on the inside and outside of the partition body 3, but it is sufficient that the straightening plates 9 are formed on at least the partition wall 6.

[0025] In addition, the swirl discharge section 5 has a plurality of (here, nine) straightening plates 10 (10a to 10i) arranged at regular intervals in the circumferential direction, inclined in a fixed direction, between the inner peripheral edge and the outer peripheral edge of the partition body 3. Here, the inner end and outer end of each straightening plate 10 are arranged on the same circle, and the outer end of each straightening plate 10 is shifted in a fixed direction (here, counterclockwise in plan view) in the circumferential direction relative to the inner end, so that the combustion gas swirling in a fixed direction (here, counterclockwise in plan view) inside the combustion space 2 can pass smoothly from the inside to the outside between adjacent straightening plates 10, 10.

[0026] As a result, the swirling discharge section 5 discharges the combustion gas outward from the inner combustion space 2. At that time, the combustion gas is discharged to the outside of the combustion space 2 in a fixed direction (here, counterclockwise in plan view) due to the action of the straightening vane 10. Therefore, inside the combustion space 2, the combustion gas is maintained in a state of swirling in a fixed direction (here, counterclockwise in plan view).

[0027] In the swirl discharge section 5, the straightening plates 10 are formed on the buffer walls 7, 8 on the inside and outside of the partition body 3, but it is sufficient that the straightening plates 10 are formed on at least the partition wall 6.

[0028] The buffer wall 7 formed outside the partition wall 6 of the partition body 3 is formed in a circular inclined shape downward from the inside to the outside between the inlet side of the swirling supply section 4 (the outer lower side of the partition wall 6) where air flows into the swirling supply section 4 and the outlet side of the swirling discharge section 5 (the outer upper side of the partition wall 6) where combustion gas flows out from the swirling discharge section 5.

[0029] As a result, air flowing into the swirling supply section 4 from the outside is restrained downward by buffer wall 7 on the inlet side of the swirling supply section 4, increasing the air flow velocity and flow pressure, while combustion gas flowing out from the swirling discharge section 5 to the outside is dispersed downward by buffer wall 7 on the outlet side of the swirling discharge section 5, reducing the flow velocity and flow pressure of the combustion gas. This weakens the shear force between the flow of air flowing into the swirling supply section 4 and the flow of combustion gas flowing out of the swirling discharge section 5 outside the combustion accelerator 1 (outside the outer periphery of partition wall 6), making it possible to mitigate the buffering (collision) of the air flowing into the swirling supply section 4 and the combustion gas flowing out of the swirling discharge section 5 outside the combustion accelerator 1 (outside the outer periphery of partition wall 6) and also to mitigate the effects of wind outside the combustion accelerator 1.

[0030] In addition, the buffer wall 8 formed inside the partition wall 6 of the partition body 3 is formed in a circular inclined shape extending downward from the outside to the inside between the supply side (the inner inner lower side of the partition wall 6) of the swirling supply section 4 where air is supplied from the swirling supply section 4 to the combustion space 2 and the discharge side (the inner inner upper side of the partition wall 6) of the swirling discharge section 5 where combustion gas is discharged from the combustion space 2 to the swirling discharge section 5.

[0031] Therefore, the air supplied from the swirl supply section 4 to the combustion space 2 is restrained downward by the buffer wall 8 on the supply side of the swirl supply section 4, increasing the air flow velocity and flow pressure, while the combustion gas discharged from the combustion space 2 to the swirl discharge section 5 is dispersed upward by the buffer wall 8 on the discharge side of the swirl discharge section 5, reducing the flow velocity and flow pressure of the combustion gas. As a result, inside the combustion promoter 1 (inside the inner periphery of the partition wall 6), the shear force between the flow of air supplied from the swirl supply section 4 to the combustion space 2 and the flow of combustion gas discharged from the combustion space 2 to the swirl discharge section 5 is weakened, which reduces the buffering (collision) between the air supplied to the swirl supply section 4 and the combustion gas discharged from the swirl discharge section 5 inside the combustion promoter 1 (inside the inner periphery of the partition wall 6) and also reduces the impact on the flame inside the combustion space 2.

[0032] As described above, the combustion promoter 1 is configured so that, outside the combustion space 2 where the flame is formed, there is a swirling supply section 4 for swirling the air supplied to the combustion space 2 inside the combustion space 2, and a swirling discharge section 5 for discharging the combustion gas swirling inside the combustion space 2 from the combustion space 2, which are separated by a horizontal partition wall 6, and buffer walls 7 and 8 are formed on the partition wall 6 facing downward to reduce the buffering between the air flowing through the swirling supply section 4 and the combustion gas flowing through the swirling discharge section 5.

[0033] Therefore, in the combustion accelerator 1 having the above configuration, the buffering between the air flowing through the swirl supply section 4 and the combustion gas flowing through the swirl discharge section 5 is alleviated, and the combustion of the flame can be further promoted.

[0034] [Second Example] As shown in Figures 5 to 8, the combustion promoter 11 of the second embodiment promotes the combustion of a flame in a combustion device, and its central part forms a cylindrical combustion space 12 in which the flame of the combustion device is formed, and the combustion promoter 11 is arranged around the combustion space 12 to promote the combustion of the flame inside the combustion space 12.

[0035] This combustion accelerator 11 has legs 14 attached to the lower part of a hollow polygonal prism-shaped (here, a dodecagonal prism-shaped) main body wall 13, and an annular partition body 15 attached to the upper inside part of the main body wall 13.

[0036] In addition, the combustion promoter 11 forms a swirling supply section 16 at the bottom of the partition 15 for swirling the air supplied from outside the combustion promoter 11 to the combustion space 12 in a fixed direction (here, counterclockwise in a plan view) inside the combustion space 12, and also forms a swirling discharge section 17 at the top of the partition 15 for discharging the combustion gas swirling in a fixed direction (here, counterclockwise in a plan view) inside the combustion space 12 from the combustion space 12 to the outside of the combustion promoter 11.

[0037] As a result, the combustion promoter 11 has a configuration in which a swirling supply section 16 and a swirling discharge section 17 are separated from each other by a horizontal partition 15 outside the combustion space 12 .

[0038] The partition body 15 forms a horizontal annular partition wall 18 inside the main body wall 13, and forms a vertical cylindrical buffer wall 19 that descends downward inside the inner peripheral edge of the partition wall 18.

[0039] Here, the swirl supply section 16 has a plurality of (here, 12) straightening plates 20 (20a-20l) cut out in a U-shape on each side of the main body wall 13, and each straightening plate 20 is bent from the main body wall 13 to the inner peripheral edge of the partition wall 18, so that the straightening plates 20 (20a-20l) are arranged at regular intervals in the circumferential direction while being tilted in a fixed direction in the circumferential direction. Here, the inner end and outer end of each straightening plate 20 are arranged on the same circle, and the outer end of each straightening plate 20 is shifted in a fixed direction in the circumferential direction (here, clockwise in plan view) relative to the inner end, so that air passing from the outside to the inside between adjacent straightening plates 20, 20 swirls in a fixed direction (here, counterclockwise in plan view) inside the combustion space 12.

[0040] The swirl discharge section 17 has a plurality of (here, 12) straightening plates 21 (21a to 21l) cut out in a U-shape on each side of the main body wall 13. Each straightening plate 21 is bent from the main body wall 13 to the inner peripheral edge of the partition wall 18, so that the straightening plates 21 (21a to 21l) are arranged at regular intervals in the circumferential direction while being tilted in a fixed direction. Here, the inner end and outer end of each straightening plate 21 are arranged on the same circle, and the outer end of each straightening plate 21 is shifted in a fixed direction (here, counterclockwise in plan view) in the circumferential direction relative to the inner end, so that the combustion gas swirling in a fixed direction (here, counterclockwise in plan view) inside the combustion space 12 passes smoothly from the inside to the outside between adjacent straightening plates 21, 21.

[0041] The buffer wall 19 formed inside the partition wall 18 of the partition body 15 is formed in the shape of a vertical cylinder between the supply side (the inner lower side of the partition wall 18) of the swirling supply section 16 where air is supplied from the swirling supply section 16 to the combustion space 12 and the discharge side (the inner upper side of the partition wall 18) of the swirling discharge section 17 where combustion gas is discharged from the combustion space 12 to the swirling discharge section 17.

[0042] As a result, the air supplied from the swirling supply section 16 to the combustion space 12 and the combustion gas discharged from the combustion space 12 to the swirling discharge section 17 are clearly separated vertically by the buffer wall 19, and inside the combustion promoter 11 (inside the inner circumference of the partition wall 18), the shear force between the flow of air supplied from the swirling supply section 16 to the combustion space 12 and the flow of combustion gas discharged from the combustion space 12 to the swirling discharge section 17 is weakened, thereby reducing the buffering (collision) between the air supplied to the swirling supply section 16 and the combustion gas discharged from the swirling discharge section 17 inside the combustion promoter 11 (inside the inner circumference of the partition wall 18), and also reducing the impact on the flame inside the combustion space 12. [Explanation of symbols]

[0043] 1 Combustion promoter 2 Combustion space 3 Partition body 4 Swivel supply section 5 Swirling discharge section 6 Partition wall 7 Buffer wall 8 Buffer wall 9(9a~9i) Current plate 10(10a~10i) Current plate 11 combustion promoter 12 combustion space 13 Main body wall 14 Leg body 15 Partition body 16 Swiveling supply section 17 Swirling discharge section 18 Partition wall 19 Buffer wall 20(20a~20l) Current plate 21(21a~21l) Current plate

Claims

1. A combustion promoter, in which a swirl supply section for swirling air supplied to the combustion space inside the combustion space and a swirl discharge section for discharging combustion gas swirling inside the combustion space are separated by a horizontal partition wall on the outside of the combustion space where a flame is formed, A combustion promoter characterized in that a buffer wall is formed on the partition wall facing downward to reduce the buffering between the air flowing through the swirling supply section and the combustion gas flowing through the swirling discharge section.

2. The combustion promoter according to claim 1, characterized in that the buffer wall is formed between the inlet side of the swirling supply section where air flows into the swirling supply section and the outlet side of the swirling discharge section where combustion gas flows out from the swirling discharge section.

3. The combustion promoter according to claim 1, characterized in that the buffer wall is formed between the supply side of the swirling supply section where air is supplied from the swirling supply section to the combustion space and the discharge side of the swirling discharge section where combustion gas is discharged from the combustion space to the swirling discharge section.

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