Controllable smoke emission structure and stove

Abstract

The present invention provides a controllable smoke emission structure and stove, belonging to the field of stove accessories. The controllable smoke emission structure includes: a smoke hood, which is used to cover the stove mouth; and a chimney pipe, which is connected to the smoke hood and is provided with a chimney interface and an air inlet with an adjustable opening area. When sealing the fire, the opening area of ​​the air inlet is increased, so that the suction force of the chimney on the outside air through the air inlet gradually increases, and the suction force of the chimney on the smoke hood is reduced, slowing down the combustion in the furnace. Although the suction force of the chimney on the smoke hood is reduced, the passage from the smoke hood to the chimney through the chimney pipe is always kept unobstructed, and the smoke in the smoke hood can be discharged from the chimney to the outside through the chimney pipe by itself, avoiding carbon monoxide poisoning of indoor personnel. By adopting the above controllable smoke emission structure, the stove can ensure that the smoke is completely discharged to the outside when sealing the fire, avoiding carbon monoxide poisoning of indoor personnel.

Description

Technical Field

[0001] The invention belongs to the technical field of stove accessories, and more specifically, relates to a controllable smoke emission structure and a stove. Background Art

[0002] The existing stove is equipped with a smoke hood at the furnace mouth, which is connected to the chimney. The smoke in the smoke hood is sucked away and discharged to the outside through the suction of the chimney. At the same time, the suction of the smoke hood to the furnace mouth also accelerates the gas flow in the furnace, making the fire vigorous.

[0003] When the flame of the stove is not required to be too strong, the connection between the smoke hood and the chimney is generally blocked to reduce the suction of the chimney on the smoke hood, so that the gas flow in the furnace is slowed down and the combustion in the furnace is slowed down. However, in some cases, after the connection between the smoke hood and the chimney is blocked, although the combustion in the furnace will be slowed down, a large amount of smoke will still be generated. Since the connection between the smoke hood and the chimney has been blocked at this time, it is difficult for the smoke to be discharged to the outside, which is easy to cause carbon monoxide poisoning to people indoors. Summary of the invention

[0004] The purpose of the present invention is to provide a controllable smoke exhaust structure to solve the technical problem in the prior art of blocking the connection between the smoke hood and the chimney to prevent smoke from being discharged to the outside, which may easily cause carbon monoxide poisoning to indoor personnel.

[0005] To achieve the above object, the technical solution adopted by the present invention is to provide a controllable smoke exhaust structure, comprising:

[0006] A smoke collecting hood is used to cover the furnace mouth; and

[0007] The chimney pipe is communicated with the smoke collecting hood and is provided with a chimney interface and an air inlet with an adjustable opening area.

[0008] Furthermore, the front end of the chimney pipe is connected to the smoke collecting hood, and the chimney interface is arranged on the pipe wall of the chimney pipe.

[0009] Furthermore, the air inlet is arranged at the rear end of the chimney pipe, and the air inlet, the chimney pipe and the connecting opening of the smoke collecting hood are respectively located on opposite sides of the chimney interface in the radial direction.

[0010] Furthermore, the air inlet is arranged on the pipe wall of the chimney pipe.

[0011] Furthermore, the air inlet is arranged opposite to the chimney interface.

[0012] Furthermore, the chimney pipe is slidably provided with a sealing plate for adjusting the opening area of ​​the air inlet.

[0013] Furthermore, the pipe wall of the chimney pipe is provided with two slide rails which are parallel to each other and perpendicular to the axial direction of the air inlet, and the two slide rails are respectively located on both sides of the radial direction of the air inlet; the two side edges of the sealing plate are respectively slidably connected to the two slide rails.

[0014] Furthermore, the bottom surface of the smoke collecting hood is provided with a smoke inlet for communicating with the furnace opening, and the top surface is provided with a heating port located above the furnace opening.

[0015] Furthermore, the chimney pipe is connected to the side wall or top surface of the smoke collecting hood.

[0016] When in use, the smoke hood is placed on the furnace mouth so that the smoke generated at the furnace mouth enters the smoke hood. The smoke hood is connected to the chimney through the chimney interface on the chimney pipe, so that the chimney can suck the smoke in the smoke hood. When the stove flame is not needed to be too strong, the connection between the smoke hood and the chimney is no longer blocked, but the opening area of ​​the air inlet is increased, so that the chimney gradually increases the suction force of the external air through the air inlet, while the chimney reduces the suction force of the smoke hood, thereby slowing down the gas flow at the furnace mouth and slowing down the combustion in the furnace. When starting the fire, the opening area of ​​the air inlet is reduced, so that the chimney gradually reduces the suction force of the external air through the air inlet, while the chimney increases the suction force of the smoke hood, thereby accelerating the combustion in the furnace.

[0017] The beneficial effect of the controllable smoke emission structure provided by the present invention is that compared with the prior art, when the fire is blocked, although the suction force of the chimney on the smoke hood is reduced, the passage from the smoke hood to the chimney through the chimney pipe is always kept unobstructed, and the smoke in the smoke hood can be discharged to the outside from the chimney through the chimney pipe by itself, thereby avoiding carbon monoxide poisoning of indoor personnel.

[0018] The present invention also provides a stove, comprising any of the controllable smoke emission structures described above. By adopting the controllable smoke emission structure, smoke can be completely discharged to the outside when the fire is blocked, thereby preventing carbon monoxide poisoning of indoor personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A top view of a controllable smoke exhaust structure provided by an embodiment of the present invention;

[0021] Figure 2 for Figure 1Sectional view at AA in the middle;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure of the controllable flue gas emission structure in use;

[0023] Figure 4 A cross-sectional view of a controllable smoke exhaust structure provided in another embodiment of the present invention.

[0024] Among them, the reference numerals in the figure are:

[0025] 1-smoke hood; 11-smoke inlet; 12-heating port; 2-chimney pipe; 21-chimney interface; 22-air inlet; 4-sealing plate; 41-slide rail; 5-furnace body; 51-furnace chamber; 52-furnace mouth; 6-chimney. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] Please also read Figures 1 to 4 The controllable smoke emission structure provided by the embodiment of the present invention is now described. The controllable smoke emission structure includes a smoke collecting hood 1 and a chimney pipe 2. The smoke collecting hood 1 is used to cover the furnace mouth 52. The chimney pipe 2 is connected to the smoke collecting hood 1 and is provided with a chimney interface 21 and an air inlet 22 with an adjustable opening area.

[0028] When in use, the smoke hood 1 is placed on the furnace mouth so that the smoke generated by the furnace mouth 52 enters the smoke hood 1. The smoke hood 1 is connected to the chimney 6 through the chimney interface 21 on the chimney pipe 2, so that the chimney 6 can suck the smoke in the smoke hood 1. When the stove flame is not required to be too strong, the connection between the smoke hood 1 and the chimney 6 is no longer blocked, but the opening area of ​​the air inlet 22 is increased, so that the suction force of the chimney 6 on the outside air through the air inlet 22 gradually increases, while the suction force of the chimney 6 on the inside of the smoke hood 1 decreases, thereby slowing down the gas flow of the furnace mouth 52 and slowing down the combustion in the furnace 51. When starting a fire, the opening area of ​​the air inlet 22 is reduced, so that the suction force of the chimney 6 on the outside air through the air inlet 22 gradually decreases, while the suction force of the chimney 6 on the inside of the smoke hood 1 increases, thereby accelerating the combustion in the furnace 51.

[0029] Compared with the prior art, the controllable smoke emission structure of the present invention has the following advantages: when the fire is blocked, although the suction force of the chimney 6 on the smoke hood 1 is reduced, the passage from the smoke hood 1 to the chimney 6 through the chimney pipe 2 is always kept unobstructed, and the smoke in the smoke hood 1 can be discharged to the outside from the chimney 6 through the chimney pipe 2 by itself, thereby avoiding carbon monoxide poisoning of indoor personnel.

[0030] Specifically, the smoke hood 1 is in a horizontal disc or flat rectangle shape, which is installed on the top of the stove body 5, and its bottom is connected to the stove mouth 52, so that the smoke generated by the combustion at the stove mouth 52 enters the smoke hood 1. The chimney pipe 2 is a horizontally arranged square tube or round tube, one end of which is connected to the smoke hood 1, and the other end is open to form an air inlet 22. A cover plate that can cover the air inlet 22 can be hinged on the pipe wall of the chimney pipe 2, and the opening area of ​​the air inlet 22 can be adjusted by rotating to open or close the cover plate.

[0031] Please also read Figures 1 to 4 As a specific embodiment of the controllable smoke exhaust structure provided by the present invention, the front end of the chimney pipe 2 is connected to the smoke collecting hood 1, and the chimney interface 21 is arranged on the pipe wall of the chimney pipe 2. When in use, the lower end of the chimney 6 is connected to the chimney interface 21, and the smoke in the smoke collecting hood 1 flows backward into the chimney pipe 2, and then enters the chimney 6 from the chimney interface 21 on the pipe wall of the chimney pipe 2.

[0032] Specifically, the chimney pipe 2 is arranged horizontally, and the front end is connected to the smoke collecting hood 1 , and the chimney interface 21 is arranged on the pipe wall at the top of the chimney pipe 2 or on the pipe walls on the left and right sides.

[0033] Please also read Figures 1 to 3 As a specific embodiment of the controllable smoke exhaust structure provided by the present invention, the air inlet 22 is arranged at the rear end of the chimney pipe 2, and the air inlet 22 and the connecting opening of the chimney pipe 2 and the smoke hood 1 are respectively located on opposite sides of the chimney interface 21 in the radial direction. This makes the air inlet 22 far away from the connecting opening of the chimney pipe 2 and the smoke hood 1, preventing the smoke in the smoke hood 1 from leaking into the room from the air inlet 22.

[0034] Specifically, the front end of the chimney pipe 2 is connected to the smoke hood 1, and the rear end face is open to form an air inlet 22. The air inlet 22 is arranged on the rear end face of the chimney pipe 2, so that the air inlet 22 is not directly opposite to the chimney interface 21, thereby avoiding the suction force generated by the chimney 6 to directly suck the air inlet 22, and further avoiding the air inlet 22 from being loosely blocked, which will cause the chimney 6 to significantly reduce the suction force of the smoke hood 1, and also avoid opening the air inlet 22 to a smaller opening area, which will cause the chimney 6 to significantly reduce the suction force of the smoke hood 1, resulting in difficulty in smoke exhaust control.

[0035] More specifically, the distance from the air inlet 22 to the chimney interface 21 is less than or equal to the distance from the connecting port of the chimney pipe 2 and the smoke hood 1 to the chimney interface 21, so that the distance from the air inlet 22 to the chimney interface 21 is less than or equal to the distance from the smoke hood 1 to the chimney interface 21, further ensuring that the suction force generated by the chimney 6 in the smoke hood 1 and the suction force generated at the air inlet 22 are substantially the same. The area of ​​the air inlet 22 is greater than or equal to the area of ​​the connecting port of the chimney pipe 2 and the smoke hood 1, and the area of ​​the air inlet 22 is greater than or equal to the area of ​​the chimney interface 21. Or the area of ​​the air inlet 22 is smaller than the area of ​​the chimney interface 21. Figure 1 The black arrows in the middle represent the air flow direction, the blank arrows represent the gas flow direction in the furnace body 5 , and the open arrows represent the mixed airflow flowing into the chimney from the chimney interface 21 .

[0036] As a specific implementation of the controllable smoke exhaust structure provided by the present invention, the air inlet 22 is arranged on the pipe wall of the chimney pipe 2.

[0037] Specifically, the front end of the chimney pipe 2 is connected to the smoke hood 1, and the left pipe wall or the right pipe wall is provided with an air inlet 22, the area of ​​the air inlet 22 is greater than or equal to the area of ​​the connecting port between the chimney pipe 2 and the smoke hood 1, and the area of ​​the air inlet 22 is greater than or equal to the area of ​​the chimney interface 21.

[0038] See also Figure 4 As a specific embodiment of the controllable smoke exhaust structure provided by the present invention, the air inlet 22 is arranged opposite to the chimney interface 21. The air inlet 22 is directly opposite to the chimney interface 21, and the suction force generated by the chimney 6 directly draws the air inlet 22. The smaller opening area of ​​the air inlet 22 will cause the suction force of the chimney 6 on the smoke hood 1 to be greatly reduced. For the furnace body 5 with a large smoke flow rate, only a smaller air inlet 22 is required to control the smoke flow rate better.

[0039] Specifically, the chimney interface 21 is arranged on the pipe wall at the top of the chimney pipe 2, and the air inlet 22 is arranged on the pipe wall at the bottom of the chimney pipe 2. When in use, the smoke is hot and will rise. The air inlet 22 is arranged on the bottom surface of the chimney pipe 2 to prevent the smoke from leaking into the room from the air inlet 22, and also to facilitate the cleaning of the dust in the chimney pipe 2 and the chimney 6.

[0040] More specifically, the area of ​​the connecting opening between the chimney pipe 2 and the smoke hood 1 is greater than or equal to the area of ​​the air inlet 22, or the area of ​​the connecting opening between the chimney pipe 2 and the smoke hood 1 is greater than or equal to 1.5 times the area of ​​the air inlet 22, or the area of ​​the connecting opening between the chimney pipe 2 and the smoke hood 1 is greater than or equal to 2 times the area of ​​the air inlet 22. This arrangement ensures that a part of the suction force of the chimney 6 connected to the chimney interface 21 is always used to suck the smoke in the smoke hood 1. The area of ​​the chimney interface 21 is greater than or equal to the area of ​​the air inlet 22, or the area of ​​the chimney interface 21 is greater than or equal to 1.5 times the area of ​​the air inlet 22, or the area of ​​the chimney interface 21 is greater than or equal to 2 times the area of ​​the air inlet 22.

[0041] Please also read Figures 1 to 3 As a specific embodiment of the controllable smoke exhaust structure provided by the present invention, the chimney pipe 2 is slidably provided with a sealing plate 4 for adjusting the opening area of ​​the air inlet 22. The air inlet 22 is gradually closed or opened by sliding the sealing plate 4, so that the opening area of ​​the air inlet 22 is adjusted.

[0042] Please also read Figures 1 to 3 As a specific embodiment of the controllable flue gas emission structure provided by the present invention, the pipe wall of the chimney pipe 2 is provided with two slide rails 41 which are parallel to each other and perpendicular to the axial direction of the air inlet 22, and the two slide rails 41 are respectively located on both sides of the radial direction of the air inlet 22; the two side edges of the sealing plate 4 are respectively slidably connected with the two slide rails 41.

[0043] Specifically, the air inlet 22 is arranged on the rear end surface of the chimney pipe 2, and two slide rails 41 are fixed on the outer wall of the chimney pipe 2, one of which is arranged horizontally above the air inlet 22 in the left-right direction, and the other is arranged horizontally below the air inlet 22 in the left-right direction. The upper side of the sealing plate 4 can be slidably connected with the upper slide rail 41 through a slider, and the lower side of the sealing plate 4 can be slidably connected with the lower slide rail 41 through a slider, so that the sealing plate 4 can be slid in the left-right direction along the slide rail 41. Or the two slide rails 41 are respectively provided with slide grooves arranged in the left-right direction, and the upper side and the lower side of the sealing plate 4 are respectively slidably embedded in the two slide grooves, so that the sealing plate 4 can be slid in the left-right direction along the slide rail 41.

[0044] When the air inlet 22 is arranged on the pipe wall at the bottom of the chimney pipe 2, two parallel slide rails 41 are arranged horizontally on the pipe wall at the bottom of the chimney pipe 2 and are respectively located on both sides of the radial direction of the air inlet 22. The sealing plate 4 is arranged horizontally between the two slide rails 41, and the two side edges are respectively slidably embedded in the slide grooves of the two slide rails 41.

[0045] Please also read Figures 1 to 3As a specific embodiment of the controllable smoke exhaust structure provided by the present invention, the bottom surface of the smoke collecting hood 1 is provided with a smoke inlet 11 for communicating with the furnace port 52, and the top surface is provided with a heating port 12 located above the furnace port 52.

[0046] When in use, the smoke hood 1 is fixed on the top of the furnace body 5 so that the smoke inlet 11 on the bottom of the smoke hood 1 is connected to the furnace mouth 52, and the smoke generated by the combustion at the furnace mouth 52 directly enters the smoke hood 1. The heating port 12 is located above the furnace mouth 52. After placing cooking utensils on the heating port 12, the flame in the furnace mouth 52 can be used for heating, which is used for daily cooking.

[0047] As a specific implementation of the controllable smoke exhaust structure provided by the present invention, the chimney pipe 2 is connected to the side wall or the top surface of the smoke collecting hood 1.

[0048] Specifically, the smoke hood 1 can be a flat rectangle or a flat disc. The smoke hood 1 is horizontally arranged, and the chimney pipe 2 is connected to the front side wall, or the rear side wall, or the left side wall, or the right side wall, or the top side wall of the smoke hood 1 to ensure that the smoke can smoothly enter the chimney pipe 2 from the smoke hood 1.

[0049] like Figure 3 As shown, the present invention also provides a stove, including any of the above controllable smoke emission structures. By adopting the above controllable smoke emission structure, it can be ensured that the smoke is completely discharged to the outside when the fire is blocked, so as to avoid carbon monoxide poisoning of indoor personnel. Specifically, the smoke hood 1 is fixed on the top of the stove body 5, covering the stove mouth 52, so that the smoke generated by the stove mouth 52 enters the smoke hood 1.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A controllable smoke emission structure, characterized in that: include: A smoke collecting hood (1) is used to cover the furnace opening (52); as well as A chimney pipe (2) is connected to the smoke collecting hood (1) and is provided with a chimney interface (21) and an air inlet (22) with an adjustable opening area; when the stove flame is not required to be too strong, the opening area of ​​the air inlet is increased; when the stove flame is turned on, the opening area of ​​the air inlet is reduced; The front end of the chimney pipe (2) is connected to the smoke hood (1), and the rear end face is open to form the air inlet (22); the chimney interface (21) is arranged on the pipe wall of the chimney pipe (2), and the air inlet (22) and the connecting port of the chimney pipe (2) and the smoke hood (1) are respectively located on two opposite sides of the chimney interface (21) in the radial direction; the area of ​​the air inlet is greater than or equal to the area of ​​the connecting port of the chimney pipe and the smoke hood; or The chimney interface is arranged on the pipe wall at the top of the chimney pipe, and the air inlet is arranged on the pipe wall at the bottom of the chimney pipe; the air inlet (22) is arranged opposite to the chimney interface (21); the area of ​​the connecting port between the chimney pipe and the smoke collecting hood is greater than or equal to the area of ​​the air inlet.

2. The controllable smoke exhaust structure according to claim 1, characterized in that: The chimney pipe (2) is slidably provided with a sealing plate (4) for adjusting the opening area of ​​the air inlet (22).

3. The controllable smoke exhaust structure according to claim 2, characterized in that: The pipe wall of the chimney pipe (2) is provided with two slide rails (41) which are parallel to each other and axially perpendicular to the air inlet (22), and the two slide rails (41) are respectively located on both sides of the radial direction of the air inlet (22); the two side edges of the sealing plate (4) are respectively slidably connected to the two slide rails (41).

4. The controllable smoke exhaust structure according to claim 1, characterized in that: The bottom surface of the smoke collecting hood (1) is provided with a smoke inlet (11) for communicating with a furnace opening (52), and the top surface is provided with a heating port (12) located above the furnace opening (52).

5. The controllable smoke exhaust structure according to claim 1, characterized in that: The chimney pipe (2) is connected to the side wall or top surface of the smoke collecting hood (1).

6. A stove, characterized in that: It comprises a controllable smoke exhaust structure as claimed in any one of claims 1 to 5.

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