CN214700812U - Firewood stove core with smoke circulating combustion function - Google Patents
Firewood stove core with smoke circulating combustion function Download PDFInfo
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- CN214700812U CN214700812U CN202120252730.6U CN202120252730U CN214700812U CN 214700812 U CN214700812 U CN 214700812U CN 202120252730 U CN202120252730 U CN 202120252730U CN 214700812 U CN214700812 U CN 214700812U
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Abstract
The utility model discloses a firewood stove core for smoke circulation combustion, which comprises an outer cylinder, an inner cylinder and a smoke returning pipe; the bottom end of the outer cylinder is provided with a first bottom sealing plate for sealing a port at the bottom end of the outer cylinder, the cylinder wall is provided with a main air inlet, the bottom end of the inner cylinder is provided with a second bottom sealing plate, the cylinder wall is provided with a plurality of first small air inlets, the inner cylinder is positioned in the outer cylinder, a space is formed between the periphery of the inner cylinder and the inner wall of the outer cylinder to form an air homogenizing space, a combustion space is arranged in the inner cylinder, a flame expanding space communicated with the combustion space is arranged above the inner cylinder and the outer cylinder, and flame burning holes are arranged above the flame expanding space; the upper end of the smoke returning pipe is communicated with the flame expanding space, and the lower end of the smoke returning pipe passes through the wall of the outer cylinder and the wall of the inner cylinder to be communicated with the combustion space. The advantages are that: a large amount of carbon monoxide and carbon particles in the flue gas are fully combusted, so that the heat efficiency of firewood burning of the stove is obviously improved; meanwhile, the pollution of smoke dust to the environment is greatly reduced, and the indoor environment is not easy to be fumigated even if a guiding chimney is not used.
Description
Technical Field
The utility model relates to a firewood stove core of flue gas circulation burning belongs to biofuel development field.
Background
The firewood-burning stove is the most original cooking stove for human, and in the past, due to the large consumption of firewood, vegetation is seriously damaged. In recent decades, with the popularization and use of convenient clean stoves such as coal-fired, gas-fired and electric heating, traditional firewood-fired stoves are largely replaced, so that originally-deficient firewood becomes abundant, a large amount of wood decoration waste is treated as garbage in cities, dry branches are used in mountains in rural areas, the wood decoration waste is superior firewood, and almost inexhaustible energy guarantee is provided for the redevelopment and utilization of the firewood-fired stoves. In this context, the development of firewood stoves is hot.
However, the various types of firewood stoves that have been developed always face the problem of difficult handling of the fumes, which is directly linked to the high thermal efficiency and pollution of the environment indoors, in particular:
1. the thermal efficiency is low. The smoke generated by the existing firewood stove contains a large amount of carbon monoxide and carbon particles which are not fully combusted, and the smoke is discharged outwards to cause good fuel loss, so that the combustion value of firewood is greatly reduced.
2. And the environment is polluted. Carbon monoxide in the smoke is toxic gas, and causes discomfort and even poisoning to people after the smoke is inhaled; the carbon particles in the smoke adhere to the surface of the object, so that the surface of the object is blackened.
Therefore, how to fully burn the effective fuel in the flue gas, improve the heat production efficiency of the firewood and reduce the environmental pollution is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is mainly: the problem that effective fuel in smoke generated when the firewood is burned by the firewood burning stove can not be fully burned.
To the above problem, the utility model provides a technical scheme is:
a firewood stove core for circularly burning smoke comprises an outer cylinder, an inner cylinder and a smoke returning pipe; the bottom end of the outer cylinder is provided with a first bottom sealing plate for sealing a port at the bottom end of the outer cylinder, the cylinder wall is provided with a main air inlet, the bottom end of the inner cylinder is provided with a second bottom sealing plate, the cylinder wall is provided with a plurality of first small air inlets, the inner cylinder is positioned in the outer cylinder, a space is formed between the periphery of the inner cylinder and the inner wall of the outer cylinder to form an air homogenizing space, a combustion space is arranged in the inner cylinder, a flame expanding space communicated with the combustion space is arranged above the inner cylinder and the outer cylinder, and flame burning holes are arranged above the flame expanding space; the upper end of the smoke returning pipe is communicated with the flame expanding space, and the lower end of the smoke returning pipe passes through the wall of the outer cylinder and the wall of the inner cylinder to be communicated with the combustion space.
Furthermore, the upper ports of the inner cylinder and the outer cylinder are provided with flame expanding bottom plates which are horizontally arranged, the upper ends of the gas homogenizing spaces are sealed by the flame expanding bottom plates, and the centers of the flame expanding bottom plates are provided with flame expanding holes which have the same inner diameter as the inner cylinder and are concentric with the inner cylinder.
Further, the flame expanding space is formed by surrounding a flame expanding bottom plate, a pot table panel with flame burning holes and arranged above the flame expanding bottom plate, and a sealing wall arranged on the periphery between the pot table panel and the flame expanding bottom plate.
Furthermore, the outer edge part of the flame-expanding bottom plate is provided with a first through hole, the cylinder wall of the outer cylinder and the cylinder wall of the inner cylinder are respectively provided with a first smoke return hole and a second smoke return hole, the upper end of the smoke return pipe is communicated with the flame-expanding space through the first through hole, and the lower end of the smoke return pipe is communicated with the combustion space in the inner cylinder through the first smoke return hole of the outer cylinder and the second smoke return hole of the inner cylinder.
Furthermore, the plurality of small air inlet holes I are distributed on the equal-height cylinder wall at the upper part of the inner cylinder in the equal-arc-length circumferential direction, and the plurality of small air inlet holes I are distributed on the equal-arc-length cylinder wall at the lower part of the inner cylinder in the equal-arc-length circumferential direction.
Furthermore, the plurality of small air inlet holes I are distributed on the equal-height cylinder wall at the upper part of the inner cylinder in an equal-arc-length circumferential direction, and the plurality of small air inlet holes I are distributed on the equal-arc-length cylinder wall at the lower part of the inner cylinder in an equal-arc-length circumferential direction; the plurality of small air inlet holes are distributed on the equal-height cylinder wall on one side of the middle part of the inner cylinder in an equal-arc length mode, the plurality of small air inlet holes are distributed on the equal-height cylinder wall on the other side of the middle part of the inner cylinder in an equal-arc length mode, and the heights of the small air inlet holes distributed on the equal-arc length mode, where the small air inlet holes are located, on the equal-height cylinder wall on one side of the middle part of the inner cylinder in an equal-arc length mode and the cylinder wall on the other side of the middle part of the inner cylinder in an equal-arc length mode have height differences.
Furthermore, an air inlet bottom core is arranged at the bottom of the combustion space of the inner cylinder and consists of a bottom core pipe and a top cover arranged at the upper end of the bottom core pipe, a second small air inlet hole is formed in the circumferential direction of the upper portion of the bottom core pipe, and the lower end of the bottom core pipe is communicated with the air homogenizing space.
Furthermore, a distance is reserved between the first bottom sealing plate of the outer cylinder and the second bottom sealing plate of the inner cylinder, a second through hole is formed in the second bottom sealing plate, and the lower end of the bottom core tube penetrates through the second through hole formed in the second bottom sealing plate and is communicated with the air-homogenizing space.
The utility model has the advantages that: a large amount of carbon monoxide and carbon particles in the flue gas are fully combusted, so that the heat efficiency of firewood burning of the stove is obviously improved; meanwhile, the pollution of smoke dust to the environment is greatly reduced, and the indoor environment is not easy to be fumigated even if a guiding chimney is not used.
Drawings
FIG. 1 is a perspective view of the outer barrel according to one embodiment;
FIG. 2 is a perspective view of the inner barrel according to one embodiment;
FIG. 3 is a schematic perspective view of the inner cylinder located inside the outer cylinder according to one embodiment;
FIG. 4 is a schematic perspective view of the outer cylinder and the inner cylinder with a flame-expanding bottom plate and a smoke-returning pipe;
FIG. 5 is a perspective view of the furnace core according to the first embodiment;
FIG. 6 is a schematic perspective view of the air inlet bottom core according to the first embodiment;
FIG. 7 is a schematic plan view of the wick according to the first embodiment;
FIG. 8 is a perspective view of the inner barrel according to the second embodiment;
in the figure: 1. an outer cylinder; 11. a first bottom sealing plate; 12. a main air intake; 13. a main air inlet pipe; 14. a first smoke return hole; 2. an inner barrel; 21. a second bottom sealing plate; 22. a second through hole; 23. a second smoke return hole; 24. a first small air inlet; 25. a combustion space; 3. a smoke returning pipe; 4. a flame expanding space; 41. a flame-expanding base plate; 42. a first through hole; 43. expanding the flame hole; 44. a pan table panel; 45. burning the holes with flame; 46. a sealing wall; 5. a gas homogenizing space; 6. an air intake bottom core; 61. a bottom core tube; 62. a top cover; 63. and a second small air inlet.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example one
The firewood stove core is arranged in the stove body of the firewood stove and is a core device for burning firewood. As shown in fig. 1, 2, 3, 4, 5, 7, a firewood stove core for smoke circulation combustion comprises an outer cylinder 1, an inner cylinder 2 and a smoke return pipe 3; the bottom end of the outer cylinder 1 is provided with a bottom sealing plate I11 for sealing the port at the bottom end of the outer cylinder 1, the cylinder wall is provided with a main air inlet hole 12, and a main air inlet pipe 13 is generally arranged in the main air inlet hole 12; the bottom end of the inner cylinder 2 is provided with a bottom sealing plate II 21, the cylinder wall is provided with a plurality of small air inlet holes I24, the inner cylinder 2 is positioned in the outer cylinder 1, a space is reserved between the periphery of the inner cylinder 2 and the inner wall of the outer cylinder 1 to form an air-homogenizing space 5, a combustion space 25 is arranged in the inner cylinder 2, a flame expanding space 4 communicated with the combustion space 25 is arranged above the inner cylinder 2 and the outer cylinder 1, and flame burning holes 45 are formed above the flame expanding space 4. The upper end of the smoke returning pipe 3 is communicated with the flame expanding space 4, and the lower end thereof passes through the cylinder wall of the outer cylinder 1 and the cylinder wall of the inner cylinder 2 to be communicated with the combustion space 25. When the device is used, the firewood is combusted in the combustion space 25, air enters the air-homogenizing space 5 from the main air inlet 12 of the outer cylinder, and then enters the combustion space 25 from the air-homogenizing space 5 through the plurality of small air inlet holes I24 on the inner cylinder 2 to supply oxygen for the combustion of the firewood. In order to increase the oxygen supply for burning firewood, a blower is arranged on the main air inlet hole 12. The flame generated by the burning of the firewood in the burning space 25 rises to the flame expanding space 4, and after the flame burning holes 45 of the flame expanding space 4 are blocked by the pot, the smoke of the flame is forced to enter the burning space 25 in the inner barrel 2 again through the smoke return pipe 3, so that the carbon monoxide and the carbon particles in the smoke are fully burnt. Through the arrangement, the heat efficiency of firewood burning of the stove can be obviously improved; meanwhile, the pollution of smoke dust to the environment is greatly reduced, and the indoor environment is not easy to be fumigated even if a guiding chimney is not used.
There are two situations to be explained here: firstly, a gap is reserved between the flame burning hole 45 and the pot, and tail gas generated by combustion is finally discharged outwards through the gap between the flame burning hole 45 and the pot; secondly, no gap is left between the flame burning hole 45 and the cooker, and a chimney is arranged on the cooker body.
The following is a further improvement.
The upper ports of the inner cylinder 2 and the outer cylinder 1 are provided with horizontally arranged flame-expanding bottom plates 41, and the upper end of the gas-homogenizing space 5 is sealed by the flame-expanding bottom plates 41, so that the air entering the gas-homogenizing space 5 from the main air inlet 12 can be forced to enter the combustion space from each small air inlet 24 more uniformly. The center of the flame-spreading bottom plate 41 is provided with a flame-spreading hole 43 which is consistent with the inner diameter of the inner cylinder 2 and is concentric with the inner cylinder 2.
The flame diffusion space 4 is surrounded by a flame diffusion bottom plate 41, a pan top plate 44 having flame burning holes 45 and disposed above the flame diffusion bottom plate 41, and a sealing wall 46 disposed at the periphery between the pan top plate 44 and the flame diffusion bottom plate 41. The sealing wall 46 here is actually the housing of the stove.
The outer edge part of the flame-expanding bottom plate 41 is provided with a first through hole 42, the cylinder wall of the outer cylinder 1 and the cylinder wall of the inner cylinder 2 are respectively provided with a first smoke return hole 14 and a second smoke return hole 23, the upper end of the smoke return pipe 3 is communicated with the flame-expanding space 4 through the first through hole 42, and the lower end of the smoke return pipe is communicated with the combustion space 25 in the inner cylinder 2 through the first smoke return hole 14 of the outer cylinder 1 and the second smoke return hole 23 of the inner cylinder 2.
The plurality of small air inlet holes I24 are distributed on the equal-height cylinder wall at the upper part of the inner cylinder 2 in the equal-arc-length circumferential direction, and the plurality of small air inlet holes I24 are distributed on the equal-arc-length circumferential direction at the lower part of the inner cylinder 2 in the equal-height cylinder wall. The arrangement is that the lower circle of small air inlet holes (24) can enter air to supply oxygen and support combustion for burning firewood, and the upper circle of small air inlet holes (24) can enter air to supply oxygen and support combustion for a large amount of carbon monoxide and carbon particles contained in the tail flame.
As shown in fig. 6 and 7, an air inlet bottom core 6 is arranged at the bottom of the combustion space 25 of the inner cylinder 2, the air inlet bottom core 6 is composed of a bottom core tube 61 and a top cover 62 arranged at the upper end of the bottom core tube 61, a small air inlet hole II 63 is arranged at the upper part of the bottom core tube 61 in the circumferential direction, and the lower end of the bottom core tube 61 is communicated with the air uniform space 5. The arrangement is that air enters through the small air inlet holes 63 to supply oxygen to the bottom of the firewood for combustion supporting.
And a distance is reserved between the first bottom sealing plate 11 of the outer cylinder 1 and the second bottom sealing plate 21 of the inner cylinder 2, a second through hole 22 is formed in the second bottom sealing plate 21, and the lower end of the bottom core tube 61 penetrates through the second through hole 22 formed in the second bottom sealing plate 21 to be communicated with the air-homogenizing space 5.
Example two
As shown in fig. 8, a firewood stove core with smoke circulation combustion differs from the first embodiment in that: the plurality of small air inlet holes I24 are distributed on the equal-height cylinder wall at the upper part of the inner cylinder 2 in the equal-arc-length circumferential direction, and the plurality of small air inlet holes I24 are distributed on the equal-arc-length circumferential direction at the lower part of the inner cylinder 2 in the equal-height cylinder wall; the plurality of small air inlet holes I24 are distributed on the equal-height cylinder wall on one side of the middle part of the inner cylinder 2 in an equal-arc length mode, the plurality of small air inlet holes I24 are distributed on the equal-arc length cylinder wall on the other side of the middle part of the inner cylinder 2 in an equal-arc length mode, and the height of the small air inlet holes I24 distributed on the equal-arc length cylinder wall on one side of the middle part of the inner cylinder 2 in an equal-arc length mode and the height of the small air inlet holes I24 distributed on the equal-arc length cylinder wall on the other side of the middle part of the inner cylinder 2 in an equal-arc length mode have height difference. The advantage that sets up like this is that the middle part to the combustion space carries out the oxygen suppliment combustion-supporting, and the both sides exhaust hole does not co-altitude setting moreover, can avoid the little inlet port of both sides one 24 to spout into the air current conflict mutually, is favorable to the air current to penetrate the flame, realizes more abundant oxygen suppliment.
The above embodiments are only for the purpose of more clearly describing the invention and should not be considered as limiting the scope of protection covered by the invention, any modification of the equivalent should be considered as falling within the scope of protection covered by the invention.
Claims (8)
1. The utility model provides a firewood kitchen stove core of flue gas circulation burning which characterized in that: comprises an outer cylinder (1), an inner cylinder (2) and a smoke returning pipe (3); the bottom end of the outer cylinder (1) is provided with a first bottom sealing plate (11) for sealing the bottom end port of the outer cylinder (1), the cylinder wall is provided with a main air inlet hole (12), the cylinder wall of the inner cylinder (2) is provided with a plurality of first small air inlet holes (24), the inner cylinder (2) is positioned in the outer cylinder (1), a space is formed between the periphery of the inner cylinder (2) and the inner wall of the outer cylinder (1) to form an air homogenizing space (5), a combustion space (25) is arranged in the inner cylinder (2), a flame expanding space (4) communicated with the combustion space (25) is arranged above the inner cylinder (2) and the outer cylinder (1), and flame burning holes (45) are arranged above the flame expanding space (4); the upper end of the smoke returning pipe (3) is communicated with the flame expanding space (4), and the lower end of the smoke returning pipe passes through the cylinder wall of the outer cylinder (1) and the cylinder wall of the inner cylinder (2) to be communicated with the combustion space (25).
2. The firewood stove core of the flue gas circulation burning of claim 1, characterized in that: the upper ports of the inner cylinder (2) and the outer cylinder (1) are provided with flame expanding bottom plates (41) which are horizontally arranged, the upper ends of the gas homogenizing spaces (5) are sealed by the flame expanding bottom plates (41), and the centers of the flame expanding bottom plates (41) are provided with flame expanding holes (43) which are consistent with the inner diameter of the inner cylinder (2) and are concentric with the inner cylinder (2).
3. The firewood stove core of the flue gas circulation burning of claim 2, characterized in that: the flame expanding space (4) is formed by surrounding a flame expanding bottom plate (41), a pot surface plate (44) which is arranged above the flame expanding bottom plate (41) and is provided with flame burning holes (45), and a sealing wall (46) which is arranged between the pot surface plate (44) and the flame expanding bottom plate (41) and is arranged at the periphery.
4. The firewood stove core of the flue gas circulation burning of claim 2, characterized in that: the outer edge of the flame-expanding bottom plate (41) is provided with a first through hole (42), the cylinder wall of the outer cylinder (1) and the cylinder wall of the inner cylinder (2) are respectively provided with a first smoke return hole (14) and a second smoke return hole (23), the upper end of the smoke return pipe (3) is communicated with the flame-expanding space (4) through the first through hole (42), and the lower end of the smoke return pipe is communicated with the combustion space (25) in the inner cylinder (2) through the first smoke return hole (14) of the outer cylinder (1) and the second smoke return hole (23) of the inner cylinder (2).
5. The firewood stove core of the flue gas circulation burning of claim 2, characterized in that: a plurality of small air inlet holes (24) are distributed on the equal-height cylinder wall at the upper part of the inner cylinder (2) in the equal-arc-length circumferential direction, and a plurality of small air inlet holes (24) are distributed on the equal-arc-length circumferential direction at the lower part of the inner cylinder (2) in the equal-height cylinder wall.
6. The firewood stove core of the flue gas circulation burning of claim 2, characterized in that: a plurality of small air inlet holes I (24) are distributed on the equal-height cylinder wall at the upper part of the inner cylinder (2) in the equal-arc-length circumferential direction, and a plurality of small air inlet holes I (24) are distributed on the equal-arc-length circumferential direction at the lower part of the inner cylinder (2) in the equal-height cylinder wall; a plurality of small air inlet holes (24) are distributed on the equal-height cylinder wall on one side of the middle part of the inner cylinder (2) in an equal-arc length mode, a plurality of small air inlet holes (24) are distributed on the equal-arc length cylinder wall on the other side of the middle part of the inner cylinder (2) in an equal-height mode, and the height of the small air inlet holes (24) distributed on the equal-arc length mode on the cylinder wall on one side of the middle part of the inner cylinder (2) in an equal-height mode and the height of the small air inlet holes (24) distributed on the equal-arc length mode on the cylinder wall on the other side of the middle part of the inner cylinder (2) in an equal-height mode have height difference.
7. The firewood stove core for smoke circulation combustion according to any one of claims 1 to 6, characterized in that: the bottom of the combustion space (25) of the inner cylinder (2) is provided with an air inlet bottom core (6), the air inlet bottom core (6) is composed of a bottom core tube (61) and a top cover (62) arranged at the upper end of the bottom core tube (61), the upper part of the bottom core tube (61) is circumferentially provided with a small air inlet hole II (63), and the lower end of the bottom core tube (61) is communicated with the gas homogenizing space (5).
8. The firewood stove core of the flue gas circulation burning of claim 7, characterized in that: the bottom end of the inner cylinder (2) is provided with a second bottom sealing plate (21), a distance is reserved between the first bottom sealing plate (11) of the outer cylinder (1) and the second bottom sealing plate (21) of the inner cylinder (2), the second bottom sealing plate (21) is provided with a second through hole (22), and the lower end of the bottom core tube (61) penetrates through the second through hole (22) formed in the second bottom sealing plate (21) to be communicated with the air-homogenizing space (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120252730.6U CN214700812U (en) | 2021-01-29 | 2021-01-29 | Firewood stove core with smoke circulating combustion function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120252730.6U CN214700812U (en) | 2021-01-29 | 2021-01-29 | Firewood stove core with smoke circulating combustion function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214700812U true CN214700812U (en) | 2021-11-12 |
Family
ID=78565374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120252730.6U Active CN214700812U (en) | 2021-01-29 | 2021-01-29 | Firewood stove core with smoke circulating combustion function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214700812U (en) |
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2021
- 2021-01-29 CN CN202120252730.6U patent/CN214700812U/en active Active
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