Multifunctional smokeless environment-friendly energy-saving stove

Abstract

According to the multifunctional smokeless environment-friendly energy-saving stove, an oxygen supply air flue is arranged between an outer hearth and an inner hearth, a bottom air inlet gasification hole set, a first air inlet gasification hole set, a second air inlet gasification hole set and a third air inlet gasification hole set are arranged, and air enters the hearth from the lower portion from the bottom air inlet gasification hole set of the inner hearth and the first air inlet gasification hole set close to the lower end; combusted smoke is upward, and then air passing through a second air inlet gasification hole group close to the upper end of the inner hearth enters to further gasify the upward smoke; and finally, smoke which is not completely combusted in the first air inlet gasification hole group and the second air inlet gasification hole group is further gasified through air entering the third air inlet gasification hole group, so that the purpose of sufficient combustion is achieved. Furthermore, air is uniformly fed into different areas of the inner hearth through the gasification hole groups, so that sufficient and uniformly distributed oxygen is obtained in the combustion process of the fuel, complete combustion of the fuel is promoted, flue gas generated due to insufficient combustion is remarkably reduced, and environmental pollution is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of combustion appliances, in particular to a multifunctional smokeless, environmentally friendly and energy-saving stove. Background Art

[0002] The furnaces in the prior art generally have the problem of incomplete combustion during the combustion process. The main reason is that the air supply in the furnace is uneven and the amount of oxygen is insufficient, which leads to the incomplete combustion of the fuel, and then produces a large amount of flue gas containing components such as carbon monoxide, particulate matter, and irritating gases. These flue gases not only cause a waste of fuel resources, but also cause serious pollution to the environment, such as aggravating air pollution and endangering human health. In addition, due to the structural design limitations of the existing furnace, its adaptability to fuel is poor, and it is difficult to efficiently burn various types of fuels (such as domestic garbage, straw and other materials with complex components), which further limits its scope of application and practicality. Therefore, how to optimize the furnace structure and improve the oxygen supply method to achieve full combustion, reduce flue gas emissions, and expand the applicability of fuel has become a technical problem that needs to be solved in this field. Summary of the Invention

[0003] The present invention aims to solve one of the problems existing in the existing related technologies to at least a certain extent. To this end, the present invention provides a multifunctional smokeless, environmentally friendly and energy-saving stove.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A multifunctional smokeless, environmentally friendly and energy-saving stove includes a furnace body, which includes an outer furnace and an inner furnace, and the side walls and bottom wall between the outer furnace and the inner furnace are formed with a connected oxygen supply duct, and an air inlet connected to the oxygen supply duct is provided on the outer wall of the outer furnace, and a supporting annular ring is provided at the end of the furnace body, and a bottom air inlet gasification hole group, a first air inlet gasification hole group, a second air inlet gasification hole group and a third air inlet gasification hole group connected to the oxygen supply duct are respectively provided on the inner furnace, the bottom air inlet gasification hole group is provided on the bottom wall of the inner furnace, the first air inlet gasification hole group is provided at the lower end position of the inner furnace side wall, the second air inlet gasification hole group is provided at the upper end position of the inner furnace side wall, and the third air inlet gasification hole group is provided on the supporting annular ring.

[0006] In some embodiments, a fire barrier ring is provided on the outer edge of the supporting annular ring.

[0007] In some embodiments, a blower is further provided, and an air inlet hose is connected between the air outlet of the blower and the air inlet of the oxygen supply air duct.

[0008] In some embodiments, an air volume regulating valve is provided on the air inlet hose.

[0009] In some embodiments, the air volume regulating valve has a control panel for controlling the air volume, and a smoke sensor for detecting smoke in the oxygen supply air duct is provided in the furnace body. The control panel is communicatively connected with the smoke sensor and can control and adjust the air volume gear of the air volume regulating valve according to the detection data of the smoke sensor.

[0010] In some embodiments, the inner furnace is a trumpet-shaped structure with a small upper end and a large lower end.

[0011] In some embodiments, the bottom wall of the inner furnace is funnel-shaped, and an ash outlet is provided in the center, which passes through the bottom and top.

[0012] In some embodiments, a grate is detachably placed on the ash outlet.

[0013] In some embodiments, a plurality of support seats for supporting and placing the boiler are evenly distributed along the circumference of the supporting annular ring.

[0014] In some embodiments, a feed opening is provided on the front side of the furnace body.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. An oxygen supply duct is set between the outer furnace and the inner furnace, and a bottom air inlet gasification hole group, a first air inlet gasification hole group, a second air inlet gasification hole group and a third air inlet gasification hole group are respectively set at different positions (lower end and upper end) of the bottom wall and side wall of the inner furnace and on the supporting annular ring, thereby forming a layered and multi-angle oxygen supply structure; air enters the furnace from the bottom through the bottom air inlet gasification hole group of the inner furnace and the first air inlet gasification hole group near the lower end, passes through the combustion smoke upward, and then passes through the air of the second air inlet gasification hole group near the upper end of the inner furnace. The air enters the oxygen supply duct through the air inlet and is evenly sent to different areas of the inner furnace through each gasification hole group, ensuring that the fuel obtains sufficient and evenly distributed oxygen during the combustion process, promoting the complete combustion of the fuel, significantly reducing the smoke generated by incomplete combustion, and reducing environmental pollution.

[0017] 2. Since the stratified oxygen supply structure solves the problem of incomplete combustion, the energy-saving stove can efficiently burn a variety of fuels, including traditional fuels (such as coal, wood) and fuels with complex components (such as domestic waste, agricultural waste, etc.); different fuels can be fully burned in a stratified oxygen supply environment, which expands the application scenarios of the stove, especially suitable for scenarios that require the treatment of domestic waste or the use of waste fuels, achieving the technical effect of "multi-functional" combustion.

[0018] 3. The complete combustion of the fuel allows its chemical energy to be converted into heat energy more efficiently, reducing energy loss caused by incomplete combustion, thereby improving energy utilization and achieving the goal of energy conservation and consumption reduction. At the same time, waste such as domestic garbage can be used as fuel, turning waste into treasure, further saving traditional fuel resources, and having significant economic and environmental benefits.

[0019] 4. By improving the combustion conditions structurally and reducing the generation of flue gas and pollutants from the source, low pollution emissions can be achieved without adding additional complex flue gas treatment equipment. It has significant environmental advantages and meets the development needs of green energy-saving technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0022] Figure 2 It is a schematic top view of the present invention.

[0023] Figure 3 For the present invention Figure 2 Schematic diagram of the cross-section at AA.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the furnace body of the present invention when it is installed on the frame. DETAILED DESCRIPTION

[0025] The following detailed description provides various embodiments or examples for implementing the present invention. Of course, these are merely examples or embodiments and are not intended to be limiting. Furthermore, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. Such repetition is for simplicity and clarity in describing the present invention and does not imply a specific relationship between the different embodiments and / or configurations discussed.

[0026] like Figure 1-Figure 4The multifunctional smokeless, environmentally friendly and energy-saving stove shown in the figure includes a furnace body 1, which is characterized in that: the furnace body 1 includes an outer furnace 2 and an inner furnace 3, and the side walls and bottom walls between the outer furnace 2 and the inner furnace 3 are formed with a connected oxygen supply duct 4, and an air inlet 5 connected to the oxygen supply duct 4 is provided on the outer wall of the outer furnace 2, and a supporting annular ring 6 is provided at the end of the furnace body 1, and a bottom air inlet gasification hole group 7, a first air inlet gasification hole group 8, a second air inlet gasification hole group 9 and a third air inlet gasification hole group 10 connected to the oxygen supply duct 4 are respectively provided on the inner furnace 3, the bottom air inlet gasification hole group 7 is provided on the bottom wall of the inner furnace 3, the first air inlet gasification hole group 8 is provided at the lower end position of the side wall of the inner furnace 3, the second air inlet gasification hole group 9 is provided at the upper end position of the side wall of the inner furnace 3, and the third air inlet gasification hole group 10 is provided on the supporting annular ring 6.

[0027] According to the above structure, an oxygen supply duct 4 is provided between the outer furnace 2 and the inner furnace 3, and a bottom air inlet gasification hole group 7, a first air inlet gasification hole group 8, a second air inlet gasification hole group 9 and a third air inlet gasification hole group 10 are provided at different positions (lower end and upper end) of the bottom wall and side wall of the inner furnace 3 and on the supporting annular ring 6, respectively, to form a layered, multi-angle oxygen supply structure; air enters the furnace from the bottom of the inner furnace 3 through the bottom air inlet gasification hole group 7 and the first air inlet gasification hole group 8 near the lower end, passes through the combustion smoke upward, and then passes through the second air inlet gasification hole group 8 near the upper end of the inner furnace 3. The air from the air inlet gasification hole group 9 enters the smoke facing upward and is further gasified; finally, for the smoke that has not been completely burned by the first air inlet gasification hole group 8 and the second air inlet gasification hole group 9, the air entering through the third air inlet gasification hole group 10 is further gasified to achieve the purpose of full combustion; then, after the air enters the oxygen supply duct through the air inlet, it is evenly sent to different areas of the inner furnace through each gasification hole group, ensuring that the fuel obtains sufficient and evenly distributed oxygen during the combustion process, promoting complete combustion of the fuel, significantly reducing the smoke generated by incomplete combustion, and reducing environmental pollution.

[0028] Because the stratified oxygen supply structure solves the problem of incomplete combustion, the energy-saving stove can efficiently burn a variety of fuels, including traditional fuels (such as coal, wood) and fuels with complex components (such as domestic waste, agricultural waste, etc.); different fuels can be fully burned in a stratified oxygen supply environment, which expands the application scenarios of the stove, especially suitable for scenarios that require the treatment of domestic waste or the use of waste fuels, achieving the technical effect of "multi-functional" combustion.

[0029] The complete combustion of the fuel allows its chemical energy to be more efficiently converted into heat energy, reducing energy loss caused by incomplete combustion, thereby improving energy utilization and achieving the goal of saving energy and reducing consumption. At the same time, waste such as domestic garbage can be used as fuel, turning waste into treasure, further conserving traditional fuel resources, and achieving significant economic and environmental benefits.

[0030] See also Figure 1 、 Figure 3 As shown, the bottom air inlet gasification hole group 7 is composed of multiple circles of air holes; the first air inlet gasification hole group 8 is composed of a row of air holes around the circumference; and the second air inlet gasification hole group 9 is composed of two rows of air hole components around the circumference, and the upper and lower air holes are staggered in sequence; the third air inlet gasification hole group 10 is composed of a row of air holes around the circumference.

[0031] Furthermore, a fire barrier ring 11 is provided on the outer edge of the supporting annular ring 6 ; the fire barrier ring 11 can be made of high-temperature resistant metal material (such as cast iron, stainless steel) and is welded and fixed along the outer edge of the supporting annular ring 6 .

[0032] Therefore, by setting the fire barrier 11, the flame can be effectively blocked from overflowing outward, and the heat loss to the outside of the furnace can be reduced, thereby improving thermal efficiency, making the fuel burn more completely, and further reducing smoke emissions; in addition, the fire barrier 11 can also prevent the flame from directly contacting surrounding objects, thereby improving safety of use.

[0033] See also Figure 4 As shown, a bracket for placing the furnace body 1 is also provided, and a fan 31 is provided on the bracket, and an air inlet hose 32 is connected between the air outlet of the fan 31 and the air inlet 5 of the oxygen supply duct 4; the fan can be a centrifugal fan or an axial flow fan, which is installed at a suitable position outside the furnace body 1 and fixed by a bracket; the air inlet hose 32 is made of high-temperature resistant and wear-resistant material, one end of which is tightly fitted with the air outlet of the fan 31, and the other end is connected to the air inlet 5 on the outer wall of the outer furnace 2 by a clamp or thread to ensure air tightness.

[0034] The fan 31 is provided and connected to the oxygen supply duct 4 through the air inlet hose 32, so as to realize forced oxygen supply and solve the problem of insufficient oxygen supply under natural ventilation conditions. Especially when burning high-oxygen-consuming fuels or requiring high-power combustion, it can ensure that there is always sufficient oxygen in the furnace, maintain a stable and sufficient combustion state, and significantly improve the combustion efficiency and fuel adaptability.

[0035] Furthermore, an air volume regulating valve 41 is provided on the air inlet hose 32; thereby, the amount of air entering the oxygen supply duct 4 can be adjusted according to the requirements of different fuel types and combustion stages (such as ignition, normal combustion, and insulation), thereby achieving precise control of the combustion intensity, which can not only meet the needs of high-power combustion, but also save energy at low load and improve energy-saving effects.

[0036] Furthermore, the air volume regulating valve 41 has a control panel for controlling the air volume, and a smoke sensor for detecting smoke in the oxygen supply air duct 4 is provided in the furnace body 1. The control panel is communicatively connected with the smoke sensor and can control and adjust the air volume gear of the air volume regulating valve 41 according to the detection data of the smoke sensor; its control panel is of existing conventional design, and can adopt a single-chip microcomputer such as STM32 or PLC controller, which is connected to the smoke sensor and the air volume regulating valve through a signal line; the control panel presets the correspondence between the carbon monoxide concentration threshold and the air volume gear. When the sensor detects that the concentration exceeds the threshold, the control panel sends a signal to the air volume regulating valve to increase the opening; otherwise, the opening is reduced.

[0037] The control panel of the air volume regulating valve 41 is thus communicatively connected to the smoke sensor, which can monitor the carbon monoxide concentration in the furnace in real time and automatically adjust the air volume level according to the detection data; when the carbon monoxide concentration increases, the control panel automatically increases the air volume to promote full combustion of the fuel and reduce carbon monoxide emissions; when the concentration decreases, the air volume is appropriately reduced to save energy, thereby realizing intelligent and adaptive combustion control and further improving environmental protection and energy-saving effects.

[0038] See also Figure 3 As shown, the inner furnace 3 is a trumpet-shaped structure with a small upper end and a large lower end; the trumpet angle of the inner furnace 3 can be designed according to actual needs, usually the ratio of the lower end diameter to the upper end diameter is 1.2-1.5, and the ratio of the height to the lower end diameter is 0.5-0.8; the inner furnace 3 can be made into a metal shell by stamping, casting and other processes, and the inner wall is coated with a refractory coating.

[0039] Therefore, by designing the inner furnace 3 as a trumpet-shaped structure with a small upper end and a large lower end, the combustion space in the furnace can be narrow at the top and wide at the bottom, which helps to concentrate the flame upward and improve the flame temperature and heat radiation efficiency; at the same time, this structure can make the fuel fully contact with the air during the falling process, promote combustion uniformity, and is particularly suitable for burning granular or block fuels, reducing the problem of insufficient combustion caused by local accumulation.

[0040] See also Figure 1 、 Figure 3 As shown, the bottom wall of the inner furnace 3 is a funnel-shaped structure, and an ash outlet 71 is provided in the center thereof, which passes through from top to bottom. To ensure that the ashes can slide down smoothly, the ash outlet 71 is located at the center of the bottom of the funnel. The bottom wall of the inner furnace 3 can be punched into a funnel shape by a metal plate, or cast by a refractory material. The bottom wall of the inner furnace 3 and the edges of the ash outlet 71 need to be polished smooth to prevent the grate 81 from being scratched or the ashes from being stuck.

[0041] Therefore, the bottom wall of the inner furnace 3 is funnel-shaped and an ash outlet 71 is provided in the center, so that the ashes produced by the combustion can automatically gather toward the center and fall through the ash outlet 71, which is convenient for centralized cleaning and avoids the accumulation of ashes at the bottom of the furnace to affect air circulation and fuel combustion; the funnel-shaped structure can also guide air into the furnace from the bottom air inlet gasification hole group 7.

[0042] Furthermore, a grate 81 is detachably placed on the ash outlet 71. The grate 81 is made of metal (such as cast iron, stainless steel), and the spacing of the bars is designed according to the size of the fuel particles to ensure that the fuel does not fall and the ashes can pass through smoothly. The shape of the grate matches the ash outlet, and is usually round or square.

[0043] See also Figure 1 、 Figure 2 As shown, a number of support seats 91 for supporting the boiler are evenly distributed along the circumference of the supporting annular ring 6; the number of support seats 91 is generally 3-6, and they are evenly spaced along the circumference of the supporting annular ring 6; the support seats 91 can be made of metal blocks or refractory blocks, with a height of 2-5 cm to increase the contact area with the boiler; the support seats 91 are fixed to the supporting annular ring 6 by welding, bolting or casting.

[0044] A feed opening 92 is provided on the front side of the furnace body 1. The feed opening 91 is rectangular in shape and its size is designed according to the size of the fuel, which makes it convenient for users to add fuel to the furnace. It is especially suitable for scenarios where frequent adding of fuel is required, thereby improving the convenience of use. The setting of the feed opening can make the fuel adding process more intuitive and facilitate the control of the amount of fuel added.

[0045] By improving the combustion conditions structurally and reducing the generation of flue gas and pollutants at the source, low pollution emissions can be achieved without the need for additional complex flue gas treatment equipment. This has significant environmental advantages and meets the development needs of green and energy-saving technologies.

[0046] The basic principles, main features, and advantages of the present invention are shown and described above in conjunction with the accompanying drawings. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention as claimed. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional smokeless, environmentally friendly and energy-saving stove, comprising a furnace body (1), characterized in that: The furnace body (1) includes an outer furnace (2) and an inner furnace (3), and the side wall and bottom wall between the outer furnace (2) and the inner furnace (3) are formed with an oxygen supply duct (4) in communication, and an air inlet (5) in communication with the oxygen supply duct (4) is provided on the outer wall of the outer furnace (2), and a supporting annular ring (6) is provided at the end of the furnace body (1), and a bottom air inlet gasification port (6) in communication with the oxygen supply duct (4) is provided on the inner furnace (3). The bottom air inlet gasification hole group (7), the first air inlet gasification hole group (8), the second air inlet gasification hole group (9) and the third air inlet gasification hole group (10), the bottom air inlet gasification hole group (7) is arranged on the bottom wall of the inner furnace (3), the first air inlet gasification hole group (8) is arranged at the lower end position of the side wall of the inner furnace (3), the second air inlet gasification hole group (9) is arranged at the upper end position of the side wall of the inner furnace (3), and the third air inlet gasification hole group (10) is arranged on the supporting annular ring (6).

2. The multifunctional smokeless, environmentally friendly and energy-saving stove according to claim 1, characterized in that: A fire-blocking ring (11) is provided on the outer edge of the supporting annular ring (6).

3. The multifunctional smokeless, environmentally friendly and energy-saving stove according to claim 1, characterized in that: A fan (31) is also provided, and an air inlet hose (32) is connected between the air outlet of the fan (31) and the air inlet (5) of the oxygen supply air duct (4).

4. The multifunctional smokeless, environmentally friendly and energy-saving stove according to claim 3, characterized in that: An air volume regulating valve (41) is provided on the air inlet hose (32).

5. The multifunctional smokeless, environmentally friendly and energy-saving stove according to claim 4, characterized in that: The air volume regulating valve (41) has a control panel for controlling the air volume, a smoke sensor for detecting smoke in the oxygen supply air duct (4) is provided in the furnace body (1), the control panel is in communication connection with the smoke sensor, and can control and adjust the air volume gear of the air volume regulating valve (41) according to detection data of the smoke sensor.

6. The multifunctional smokeless, environmentally friendly and energy-saving stove according to claim 1, characterized in that: The inner furnace (3) is a trumpet-shaped structure with a small upper end and a large lower end.

7. The multifunctional smokeless, environmentally friendly and energy-saving stove according to claim 1, characterized in that: The bottom wall of the inner furnace (3) is in a funnel-shaped structure, and an ash drop opening (71) is provided in the center thereof, which passes through the bottom and top.

8. The multifunctional smokeless, environmentally friendly and energy-saving stove according to claim 7, characterized in that: A grate (81) is detachably placed on the ash drop opening (71).

9. The multifunctional smokeless, environmentally friendly and energy-saving stove according to claim 1, characterized in that: A plurality of support seats (91) for supporting and placing the boiler are evenly distributed along the circumference of the supporting annular ring (6).

10. The multifunctional smokeless, environmentally friendly and energy-saving stove according to claim 2, characterized in that: A feed opening (92) is provided on the front side of the furnace body (1).

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