Efficient air inlet three-time vaporization combustion furnace

Abstract

The efficient air inlet three-time vaporization combustion furnace comprises a furnace body, a furnace pipe bottom partition plate is installed on the lower portion of the furnace body, an air inlet cavity is formed in the lower portion of the furnace pipe bottom partition plate, and bottom air inlet holes are formed in the surface of the furnace pipe bottom partition plate. A furnace pipe top partition plate is installed on the upper portion of the furnace body, a furnace body auxiliary cavity is formed in the upper portion of the furnace pipe top partition plate, a combustion furnace pipe is installed between the furnace pipe top partition plate and a furnace pipe bottom partition plate, furnace pipe air inlet holes are formed in the upper portion of the combustion furnace pipe, the combustion furnace pipe is sleeved with an air inlet flow dividing sleeve, and a secondary vaporization air channel is formed between the combustion furnace pipe and the air inlet flow dividing sleeve. An auxiliary cavity air inlet hole communicated with the furnace body auxiliary cavity is formed in the surface of the furnace pipe top partition plate, the auxiliary cavity air inlet hole and the furnace pipe air inlet hole are isolated through the top end of the air inlet flow dividing sleeve, and a tertiary vaporization air channel is formed between the air inlet flow dividing sleeve and the furnace body. The combustion utilization rate can be improved to the maximum extent, and environmental pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion furnace equipment, in particular to a high-efficiency air-inlet three-stage vaporization combustion furnace. Background Art

[0002] As a commonly used heating device in rural families in the north in winter, the combustion stove can be used for cooking and heating. It is very convenient to use and has a high penetration rate. With the improvement of living standards, people have higher and higher requirements for the performance of combustion stoves. Therefore, providing a safe, pollution-free, high thermal efficiency, and convenient household stove to meet the current civil combustion stove has become the main market demand, especially for the safety and pollution-free use. At present, during the combustion process of the combustion stove, if the wood, coal and other fuels used are not fully burned, a large amount of harmful and flammable and explosive smoke such as CO and SO2 will be generated, and these smoke will flow directly from the flue and be discharged, which will not only cause environmental pollution, but also take away a large amount of heat in the furnace, resulting in a large amount of heat loss.

[0003] The combustion furnace in the prior art generally has two vaporizations. The first vaporization is the initial combustion at the lower part of the combustion furnace. As the flue gas gradually flows upward, the second vaporization is achieved by air supplement at the upper part of the combustion furnace. The two vaporizations can effectively improve the combustion utilization rate of the flue gas, but the combustion utilization rate can only achieve 60-70%, and some flue gas is discharged, causing environmental pollution. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a high-efficiency air-inlet three-time vaporization combustion furnace which has a reasonable design, can realize three-time vaporization and improve the combustion utilization rate to the maximum extent.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a high-efficiency air-inlet three-time vaporization combustion furnace, including a furnace body, a furnace bottom baffle is installed at the lower part of the furnace body, an air inlet cavity is formed at the lower part of the furnace bottom baffle, a bottom air inlet hole is arranged on the surface of the furnace bottom baffle, and a side air inlet hole is arranged on the side wall of the furnace body, and the air inlet cavity connects the side air inlet hole and the bottom air inlet hole; a furnace top baffle is installed at the upper part of the furnace body, a furnace body sub-cavity is formed at the upper part of the furnace top baffle, a combustion furnace is installed between the furnace top baffle and the furnace bottom baffle, and the combustion furnace A furnace inlet hole is arranged on the upper part of the burning furnace, and an air inlet diverter sleeve is arranged on the outer surface of the burning furnace, and a secondary vaporization air duct is formed between the burning furnace and the air inlet diverter sleeve, and the secondary vaporization air duct connects the bottom air inlet hole and the furnace inlet hole; a sub-cavity air inlet hole connected to the furnace body sub-cavity is arranged on the surface of the furnace top partition, and the top of the air inlet diverter sleeve isolates the sub-cavity air inlet hole from the furnace inlet hole, and a tertiary vaporization air duct is formed between the air inlet diverter sleeve and the furnace body, and the tertiary vaporization air duct connects the bottom air inlet hole and the sub-cavity air inlet hole.

[0006] As a preferred technical solution, the top end of the combustion furnace is installed on the surface of the furnace top partition, the bottom end of the combustion furnace is installed on the surface of the furnace bottom partition, the top end of the air inlet diversion sleeve is installed on the surface of the furnace top partition, and the bottom end of the air inlet diversion sleeve does not contact the surface of the furnace bottom partition to form an air inlet diversion ring.

[0007] As a preferred technical solution, a fire outlet connected to the inner cavity of the combustion furnace is provided in the middle of the furnace top partition, a smoke exhaust port connected to the furnace body sub-cavity is provided on the upper rear portion of the furnace body, and a smoke blocking baffle is installed on the surface of the furnace top partition, and the smoke blocking baffle is located on the outer peripheral side of the sub-cavity air inlet to semi-close and block the smoke exhaust port.

[0008] As a preferred technical solution, an air inlet hole adjustment device corresponding to the side air inlet hole is provided on the side wall of the furnace body.

[0009] As a preferred technical solution, the air inlet hole adjustment device includes an air inlet baffle slidably installed on the inner wall of the furnace body, and the air inlet baffle is arranged with baffle air holes corresponding to the side air inlet holes. An adjustment hole is provided on the side wall of the furnace body, and a connecting rod is fixedly installed on the outer wall of the air inlet baffle, and the connecting rod extends out of the adjustment hole and is connected to an adjustment handle.

[0010] As a preferred technical solution, the lower part of the combustion furnace is a cylindrical body, the upper part of the cylindrical body is tapered upward to form a conical body, and the front side of the cylindrical body is provided with a furnace fuel adding opening.

[0011] As a preferred technical solution, the lower part of the air inlet diverter sleeve is a cylindrical diverter sleeve, the upper part of the cylindrical diverter sleeve is tapered upward to form a conical sleeve body, the air duct width between the cylindrical gallbladder body and the cylindrical diverter sleeve is the same as the air duct width between the conical gallbladder body and the conical sleeve body, and the front side of the cylindrical diverter sleeve is provided with a diverter sleeve opening corresponding to the furnace gallbladder fuel adding port.

[0012] As a preferred technical solution, the furnace fuel adding port is connected to the bottom air inlet hole.

[0013] As a preferred technical solution, the front wall of the furnace body is provided with a main fuel inlet corresponding to the inner cavity of the combustion furnace, and the front wall of the furnace body is also provided with an auxiliary fuel inlet corresponding to the auxiliary cavity of the furnace body. A grate and an ash hopper are provided below the combustion furnace, and a lower ash hole connected to the inner cavity of the combustion furnace is provided in the middle of the furnace bottom partition. The grate and the ash hopper are located below the furnace bottom partition and correspond to the lower ash hole.

[0014] As a preferred technical solution, the main fuel filling port is provided with a main fuel filling door which can be opened and closed, and the auxiliary fuel filling port is provided with an auxiliary fuel filling door which can be opened and closed.

[0015] Due to the adoption of the above technical scheme, the beneficial effects of the utility model are as follows: the wood is burned in the lower part of the combustion furnace and vaporized once. During the combustion process, air is drawn outward at the smoke exhaust port, and air enters into the furnace body from the side air inlet through the air inlet cavity and the bottom air inlet hole. A part of the air enters into the upper part of the furnace through the secondary vaporization air duct and the furnace air inlet hole, and the smoke after the primary vaporization and combustion moves upward and vaporizes twice in the upper part of the furnace, and another part of the air enters into the furnace sub-cavity through the tertiary vaporization air duct and the sub-cavity air inlet hole, and the smoke after the secondary vaporization and combustion continues to move upward and vaporizes three times in the furnace sub-cavity, and is discharged from the smoke exhaust port after the three vaporizations. The utility model can realize the three-time vaporization process by arranging and designing the air duct, and can maximize the combustion utilization rate and reduce environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0018] Figure 2 It is a structural principle diagram of an embodiment of the utility model;

[0019] Figure 3 yes Figure 2Sectional view along AA direction;

[0020] Figure 4 yes Figure 2 Cross-sectional view along the BB direction;

[0021] Figure 5 This is a schematic diagram of the structure of the combustion furnace of the utility model embodiment;

[0022] Figure 6 This is a schematic structural diagram of an air inlet diverter sleeve according to an embodiment of the utility model;

[0023] Figure 7 It is a cross-sectional view of the combustion furnace and the air inlet diverter sleeve of the embodiment of the utility model;

[0024] In the figure: 1-furnace body; 2-furnace bottom baffle; 3-air inlet chamber; 4-furnace top baffle; 5-furnace body sub-chamber; 6-burning furnace; 6a-cylindrical furnace body; 6b-conical furnace body; 6c-furnace fuel adding port; 7-fire outlet; 8-smoke exhaust port; 9-furnace grate; 10-ash hopper; 11-lower ash hole; 12-main fuel adding port; 13-main fuel adding door; 14-sub-fuel adding port; 15-sub-fuel adding door; 16-furnace cover; 17-furnace ring; 18-bottom 19-side air inlet; 20-air inlet baffle; 21-baffle air hole; 22-adjustment hole; 23-connecting rod; 24-adjustment handle; 25-furnace hearth air inlet; 26-air inlet diversion sleeve; 26a-cylindrical diversion sleeve; 26b-conical sleeve body; 26c-diversion sleeve opening; 27-secondary vaporization air duct; 28-sub-cavity air inlet; 29-tertiary vaporization air duct; 30-air inlet diversion ring; 31-smoke baffle. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0026] like Figure 1 and Figure 2As shown, a high-efficiency air-inlet three-time vaporization combustion furnace comprises a furnace body 1, a furnace bottom partition plate 2 is installed at the lower part of the furnace body 1, an air inlet chamber 3 is formed at the lower part of the furnace bottom partition plate 2, a furnace top partition plate 4 is installed at the upper part of the furnace body 1, a furnace body sub-cavity 5 is formed at the upper part of the furnace top partition plate 4, a combustion furnace 6 is installed between the furnace top partition plate 4 and the furnace bottom partition plate 2, the top and bottom ends of the combustion furnace 6 are both opened, a fire outlet 7 connected to the inner cavity of the combustion furnace 6 is provided in the middle part of the furnace top partition plate 4, a smoke exhaust port 8 connected to the furnace body sub-cavity 5 is provided at the upper rear part of the furnace body 1, and the smoke exhaust port 8 is connected to a smoke exhaust chimney; a grate 9 and an ash hopper 10 are provided below the combustion furnace 6, a lower ash hole 11 connected to the inner cavity of the combustion furnace 6 is provided in the middle part of the furnace bottom partition plate 2, and the grate 9 and the ash hopper 10 are located at the bottom of the furnace 6. Below the bottom partition 2 of the furnace and corresponding to the lower ash hole 11; the front wall of the furnace body 1 is provided with a main firewood adding port 12 corresponding to the inner cavity of the combustion furnace 6, and the main firewood adding port 12 is corresponding to a main firewood adding door 13 that can be opened and closed, and the front wall of the furnace body 1 is also provided with a secondary firewood adding port 14 corresponding to the furnace body secondary cavity 5, and the secondary firewood adding port 14 is corresponding to a secondary firewood adding door 15 that can be opened and closed, and a furnace cover 16 and a furnace ring 17 are provided at the top opening of the furnace body 1, and the furnace cover 16 and the furnace ring 17 can be removed for placing pots, kettles, etc. The structure of the above combustion furnace is basically the same as that of the combustion furnace in the prior art, but this type of combustion furnace is prone to insufficient combustion. Therefore, on the basis of the prior art, the present application uses an innovative design of the air intake channel to better improve the combustion efficiency and achieve the three-stage vaporization combustion effect of the vaporization furnace.

[0027] See also Figure 1 and Figure 2 The surface of the furnace bottom baffle 2 is provided with a bottom air inlet hole 18, the side wall of the furnace body 1 is provided with a side air inlet hole 19, the air inlet cavity 3 is connected with the side air inlet hole 19 and the bottom air inlet hole 18, the bottom air inlet hole 18 is arranged on the left and right sides of the furnace bottom baffle 2, the side air inlet holes 19 are provided on the left and right side walls of the furnace body 1, corresponding to the bottom air inlet holes 18 on the left and right sides. The bottom air inlet hole 18 can be a rectangular hole, or a dense number of small holes.

[0028] See also Figure 1 and Figure 2The side wall of the furnace body 1 is provided with an air inlet adjustment device corresponding to the side air inlet hole 19, and the air inlet adjustment device includes an air inlet shield plate 20 slidably mounted on the inner wall of the furnace body 1, and the air inlet shield plate 20 is provided with a shield air hole 21 corresponding to the side air inlet hole 19, and an adjustment hole 22 is provided on the side wall of the furnace body 1, and a connecting rod 23 is fixedly installed on the outer wall of the air inlet shield plate 20, and the connecting rod 23 extends out of the adjustment hole 22 and is connected to an adjustment handle 24, and the shape of the shield air hole 21 is similar to that of the side air inlet hole 19. The shapes of the air inlet holes 19 are consistent. In the present embodiment, the adjustment hole 22 is a long hole in the left-right direction. The opening of the side air inlet hole 19 can be changed by sliding the adjustment handle 24 and driving the air inlet baffle 20. When the baffle air hole 21 completely corresponds to the side air inlet hole 19, the opening of the side air inlet hole 19 is the largest. The baffle air hole 21 can be dislocated by sliding the air inlet baffle 20 so that the air inlet baffle 20 blocks the side air inlet hole 19 to change the opening of the side air inlet hole 19.

[0029] See also Figures 2 to 4 The upper part of the combustion furnace 6 is provided with furnace air inlet holes 25, and the furnace air inlet holes 25 are evenly distributed on the surface of the combustion furnace 6 in the circumferential direction. The combustion furnace 6 is covered with an air inlet diversion sleeve 26, and a secondary vaporization air duct 27 is formed between the combustion furnace 6 and the air inlet diversion sleeve 26. The secondary vaporization air duct 27 is an annular air duct, and the secondary vaporization air duct 27 connects the bottom air inlet hole 18 with the furnace air inlet hole 25; the furnace top partition 4 A sub-cavity air inlet hole 28 connected to the furnace body sub-cavity 5 is arranged on the surface, and the sub-cavity air inlet holes 28 are evenly distributed in a circular shape. The top of the air inlet diverter sleeve 26 isolates the sub-cavity air inlet hole 28 from the furnace air inlet hole 25. A tertiary vaporization air duct 29 is formed between the air inlet diverter sleeve 26 and the furnace body 1. The tertiary vaporization air duct 29 is an annular air duct, and the tertiary vaporization air duct 29 connects the bottom air inlet hole 18 with the sub-cavity air inlet hole 28.

[0030] See also Figure 2 The top end of the combustion furnace 6 is welded and fixed to the surface of the furnace top partition 4, and the bottom end of the combustion furnace 6 is supported on the surface of the furnace bottom partition 2. The top end of the air inlet diversion sleeve 26 is welded and fixed to the surface of the furnace top partition 4, isolating the sub-cavity air inlet hole 28 from the furnace air inlet hole 25. The bottom end of the air inlet diversion sleeve 26 does not contact the surface of the furnace bottom partition 2 to form an air inlet diversion annulus 30, so that part of the air entering from the bottom air inlet hole 18 enters the secondary vaporization air duct 27 through the air inlet diversion annulus 30, and the other part enters the tertiary vaporization air duct 29.

[0031] See also Figure 5The lower part of the combustion furnace 6 is a cylindrical body 6a, the upper part of the cylindrical body 6a is contracted upward to form a conical body 6b, and the front side of the cylindrical body 6a is provided with a furnace adding firewood opening 6c; see Figure 6 The lower part of the air inlet diverter sleeve 26 is a cylindrical diverter sleeve 26a, the upper part of the cylindrical diverter sleeve 26a is narrowed upward to form a conical sleeve body 26b, and the front side of the cylindrical diverter sleeve 26a is provided with a diverter sleeve opening 26c corresponding to the furnace fuel adding port 6c; see Figure 7 The width of the air duct between the cylindrical body 6a and the cylindrical flow divider sleeve 26a is the same as the width of the air duct between the conical body 6b and the conical sleeve 26b. The width of the air duct is always consistent, which can ensure that the air flow rate inside is consistent and the wind speed movement is stable. The upper part of the combustion furnace 6 adopts a conical structure, which has a better fire gathering effect.

[0032] In order to further improve the combustion effect, the furnace fuel inlet 6c is connected to the bottom air inlet 18. Figure 3 When the air moves upward from the bottom air inlet 18, part of the air can also directly enter from the furnace fuel adding port 6c and directly contact the fuel, providing a combustion aid for the combustion of the fuel, so that the fuel can be fully burned to the greatest extent during the initial combustion process, reducing the amount of incomplete combustion, that is, providing sufficient air for the first vaporization.

[0033] See also Figure 2 and Figure 3 A smoke baffle 31 is installed on the surface of the furnace top partition 4, and the smoke baffle 31 is located on the outer peripheral side of the auxiliary cavity air inlet 28 to semi-close and block the smoke outlet 8. The function of the smoke baffle 31 is to increase the flow path of the smoke in the auxiliary cavity 5 of the furnace body, so that the smoke stays in the auxiliary cavity 5 of the furnace body for a longer time and fully realizes the third vaporization inside.

[0034] The working principle of this embodiment:

[0035] The wood is burned in the lower part of the combustion furnace 6 and is vaporized once. During the combustion process, air is drawn outward at the smoke exhaust port 8, and the air passes through the air inlet cavity 3 and the bottom air inlet hole 18 from the side air inlet hole 19 to enter the furnace body 1. A part of the air passes through the secondary vaporization air duct 27 and the furnace air inlet hole 25 to enter the upper part of the combustion furnace 6. The smoke after the primary vaporization and combustion moves upward and is vaporized twice in the upper part of the combustion furnace 6. Another part of the air passes through the tertiary vaporization air duct 29 and the secondary cavity air inlet hole 28 to enter the furnace body secondary cavity 5. The smoke after the secondary vaporization and combustion continues to move upward and is vaporized three times in the furnace body secondary cavity 5. After the three vaporizations, it is discharged from the smoke exhaust port 8. The utility model can realize the three-time vaporization process by arranging and designing the airway, and can maximize the combustion utilization rate, which can reach 80-90%, thereby reducing environmental pollution.

[0036] The working principle of a chimney is natural ventilation under the action of thermal pressure. The temperature difference between the air inside and outside creates a difference in air density, which in turn forms a pressure difference, causing the air inside and outside to flow. Therefore, the higher the temperature is than the outdoor temperature, the more obvious the chimney effect is. The secondary vaporization duct 27 and the tertiary vaporization duct 29 are separated and formed by the air inlet diverter sleeve 26, and the air inlet diverter sleeve 26 forms a semi-closed air supply duct with the secondary vaporization duct 27, wherein the air inlet diverter sleeve 26 can surround the heat generated in the combustion furnace 6, reduce the heat loss from the side wall of the furnace body, thereby achieving the effect of energy saving, and at the same time make the temperature in the secondary vaporization duct 27 slightly higher, and the air can be preheated when flowing through the secondary vaporization duct 27, and the secondary effect is better; in addition, since the temperature of the secondary vaporization duct 27 is higher than that of the tertiary vaporization duct 29, there is an obvious pressure difference between the secondary vaporization duct 27 and the tertiary vaporization duct 29, so that the supply air flow rate in the secondary vaporization duct 27 is faster, and more air quickly and stably enters the upper part of the combustion furnace 6, so as to better complete the secondary vaporization, wherein the secondary vaporization serves as the main vaporization process, and the tertiary vaporization serves as the auxiliary vaporization process.

[0037] When the main fuel inlet 12 is closed and the pull-out ash hopper 10 is completely closed, air cannot be provided through the main fuel inlet 12 and the ash hopper 10 at this time, but air can enter the bottom of the furnace bottom baffle 2 through the side air inlet 19, and then move upward through the bottom air inlet 18 into the furnace body 1, move upward along the secondary vaporization air duct 27 and the tertiary vaporization air duct 29, and assist the combustion of the flue gas flowing through, so that the unburned fuel can be fully burned; because the side air inlet 19 is located at the bottom of the furnace body 1, it maximizes the use of the height of the furnace body 1 while ensuring smooth air flow, so that the preheating stroke of the intake air is the longest; and a plurality of bottom air inlet holes 18 are arranged on the surface of the furnace bottom baffle 2. Since most of the air entering through the side air inlet holes 19 is in a horizontal direction, the air will be forced to change its movement direction after passing through the bottom air inlet holes 18. In the process of changing the direction of movement, the air is broken up to achieve the purpose of uniform air distribution. At the same time, after the air is evenly distributed, it is no longer restricted and can quickly move upward and be stored in the secondary vaporization duct 27 and the tertiary vaporization duct 29. The ash hopper 10 is provided at the bottom end of the furnace body 1. When the ash hopper 10 is closed, the heat in the entire ash hopper 10 cavity is also slightly higher, which can also achieve the purpose of air preheating. A semi-closed cavity is formed between the side wall of the ash hopper 10 and the furnace body 1 to ensure that the air fully enters and accumulates and flows here for preheating, so that the air preheating effect can be achieved in the entire stroke of the air moving upward from the bottom of the furnace body 1. The utility model adopts the above combined design method, which is not only reasonably designed and easy to use, but also can maximize the preheating stroke, and combined with the air uniform distribution method, it can maximize the combustion utilization rate and reduce environmental pollution.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-efficiency air-inlet tertiary gasification combustion furnace, comprising a furnace body, characterized in that: A furnace bottom partition is installed at the lower part of the furnace body, an air inlet cavity is formed at the lower part of the furnace bottom partition, a bottom air inlet hole is arranged on the surface of the furnace bottom partition, a side air inlet hole is arranged on the side wall of the furnace body, and the air inlet cavity connects the side air inlet hole and the bottom air inlet hole; a furnace top partition is installed at the upper part of the furnace body, a furnace body sub-cavity is formed at the upper part of the furnace top partition, a combustion furnace is installed between the furnace top partition and the furnace bottom partition, a furnace air inlet hole is arranged on the upper part of the combustion furnace, and the combustion furnace An air inlet diverter sleeve is provided on the outer sleeve of the furnace, a secondary vaporization air duct is formed between the combustion furnace and the air inlet diverter sleeve, and the secondary vaporization air duct connects the bottom air inlet hole with the furnace air inlet hole; a sub-cavity air inlet hole connected to the sub-cavity of the furnace body is arranged on the surface of the furnace top partition, and the top of the air inlet diverter sleeve isolates the sub-cavity air inlet hole from the furnace air inlet hole, and a tertiary vaporization air duct is formed between the air inlet diverter sleeve and the furnace body, and the tertiary vaporization air duct connects the bottom air inlet hole with the sub-cavity air inlet hole.

2. The high-efficiency air-inlet tertiary gasification combustion furnace according to claim 1, characterized in that: The top end of the combustion furnace is installed on the surface of the furnace top partition, the bottom end of the combustion furnace is installed on the surface of the furnace bottom partition, the top end of the air inlet diversion sleeve is installed on the surface of the furnace top partition, and the bottom end of the air inlet diversion sleeve does not contact the surface of the furnace bottom partition to form an air inlet diversion ring.

3. The high-efficiency air-inlet tertiary gasification combustion furnace according to claim 1, characterized in that: A fire outlet connected to the inner cavity of the combustion furnace is provided in the middle of the furnace top partition, and a smoke exhaust port connected to the furnace body sub-cavity is provided on the upper rear portion of the furnace body. A smoke blocking baffle is installed on the surface of the furnace top partition, and the smoke blocking baffle is located on the outer peripheral side of the sub-cavity air inlet to semi-close and cover the smoke exhaust port.

4. The high-efficiency air-inlet tertiary gasification combustion furnace according to claim 1, characterized in that: An air inlet hole adjusting device corresponding to the side air inlet hole is arranged on the side wall of the furnace body.

5. The high-efficiency air-inlet tertiary gasification combustion furnace according to claim 4, characterized in that: The air inlet hole adjustment device includes an air inlet baffle slidably mounted on the inner wall of the furnace body, the air inlet baffle is arranged with baffle air holes corresponding to the side air inlet holes, the side wall of the furnace body is provided with an adjustment hole, a connecting rod is fixedly mounted on the outer wall of the air inlet baffle, and the connecting rod extends out of the adjustment hole and is connected to an adjustment handle.

6. The high-efficiency air-inlet tertiary gasification combustion furnace according to claim 1, characterized in that: The lower part of the combustion furnace is a cylindrical furnace body, the upper part of the cylindrical furnace body is contracted upward to form a conical furnace body, and the front side of the cylindrical furnace body is provided with a furnace fuel adding opening.

7. The high-efficiency air-inlet tertiary gasification combustion furnace according to claim 6, characterized in that: The lower part of the air inlet diverter sleeve is a cylindrical diverter sleeve, the upper part of the cylindrical diverter sleeve is tapered upward to form a conical sleeve body, the width of the air duct between the cylindrical gallbladder body and the cylindrical diverter sleeve is the same as the width of the air duct between the conical gallbladder body and the conical sleeve body, and the front side of the cylindrical diverter sleeve is provided with a diverter sleeve opening corresponding to the fuel adding port of the furnace gallbladder.

8. The high-efficiency air-inlet tertiary gasification combustion furnace according to claim 6, characterized in that: The furnace fuel adding port is communicated with the bottom air inlet hole.

9. The high-efficiency air-inlet tertiary gasification combustion furnace according to claim 1, characterized in that: The front wall of the furnace body is provided with a main fuel inlet corresponding to the inner cavity of the combustion furnace, and the front wall of the furnace body is also provided with an auxiliary fuel inlet corresponding to the auxiliary cavity of the furnace body. A grate and an ash hopper are provided below the combustion furnace, and a lower ash hole connected to the inner cavity of the combustion furnace is provided in the middle of the bottom partition of the furnace, and the grate and the ash hopper are located below the bottom partition of the furnace and correspond to the lower ash hole.

10. The high-efficiency air-inlet tertiary gasification combustion furnace according to claim 9, characterized in that: The main fuel filling port is provided with a main fuel filling door which can be opened and closed, and the auxiliary fuel filling port is provided with an auxiliary fuel filling door which can be opened and closed.

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