CN221923592U - High-efficient air inlet combustion-supporting type combustion furnace - Google Patents

Abstract

The utility model discloses a high-efficiency air-intake and combustion-supporting combustion furnace, comprising a furnace body, a combustion furnace core is arranged in the furnace body, a combustion-supporting chamber is formed between the combustion furnace core and the furnace body, a furnace core supporting partition supported on the bottom end of the combustion furnace core is installed at the lower part of the furnace body, a furnace body air inlet is arranged on the side wall of the furnace body below the furnace core supporting partition, air inlet distribution holes which connect the furnace body air inlet and the combustion-supporting chamber are arranged on the furnace core supporting partition, and a furnace core air inlet is arranged on the upper part of the combustion furnace core; on the basis of the prior art, the present application is innovatively designed by increasing the preheating stroke of the intake air and improving the angle of air uniformity, so as to better realize the improvement of combustion efficiency and achieve the combustion effect of the vaporization furnace, and has the advantages of reasonable design and easy use, and maximizes the combustion utilization rate and reduces environmental pollution by combining the maximization of the air preheating stroke with the uniform distribution of air.

Description

High efficiency air inlet combustion furnace

Technical Field

The utility model relates to the technical field of combustion furnace equipment, in particular to a high-efficiency air-inlet combustion-supporting combustion furnace.

Background Art

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 stove, resulting in a lot of heat loss.

In order to make the fuel burn fully and improve the thermal efficiency, in the prior art, air inlets are usually added at the top and sides of the furnace to provide sufficient oxygen so that the incompletely burned flue gas can be further burned, thereby improving the utilization rate of flue gas combustion and achieving the purpose of full combustion of the fuel. However, when the outside air enters the combustion furnace, if there is no air preheating stage or the preheating stroke is short, thick smoke will be generated during the combustion process; at the same time, when the air directly contacts the furnace from the top or side, if the air distribution is uneven, the combustion effect cannot reach the best.

Utility Model Content

The technical problem to be solved by the utility model is to provide a high-efficiency air-inlet combustion-supporting combustion furnace with reasonable design, long preheating stroke and uniform air distribution.

In order to solve the above technical problems, the technical solution of the utility model is: a high-efficiency air-inlet combustion-supporting combustion furnace, comprising a furnace body, a combustion furnace liner is arranged in the furnace body, a combustion-supporting cavity is formed between the combustion furnace liner and the furnace body, the top and bottom ends of the combustion furnace liner are both opened, a grate and an ash hopper are arranged below the combustion furnace liner, and a furnace body fuel adding port is arranged on the front wall of the furnace body.

The front side of the combustion furnace is provided with a furnace fuel feeding port corresponding to the furnace body fuel feeding port, the lower part of the furnace body is equipped with a furnace support baffle supported on the bottom end of the combustion furnace, the middle part of the furnace support baffle is provided with a lower ash hole connected with the inner cavity of the combustion furnace, the grate and the ash hopper are located below the furnace support baffle and correspond to the lower ash hole; a furnace body air inlet is provided on the side wall of the furnace body below the furnace support baffle, air inlet distribution holes connecting the furnace body air inlet with the combustion-supporting cavity are arranged on the furnace support baffle, and a furnace air inlet is arranged on the upper part of the combustion furnace.

As a preferred technical solution, the furnace fuel feeding port is connected to the combustion-supporting chamber.

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

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 air inlet holes of the furnace body. 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.

As a preferred technical solution, the furnace body air inlet holes are arranged below the left and right sides of the furnace body, and a plurality of air inlet holes are arranged along the front-rear direction of the furnace body.

As a preferred technical solution, the air inlet distribution holes are arranged on the left and right sides of the furnace support partition and correspond to the positions of the furnace body air inlet holes.

As a preferred technical solution, the lower part of the combustion furnace is a cylindrical body, and the upper part of the cylindrical body is narrowed upward to form a conical body.

As a preferred technical solution, a fuel-feeding door which can be opened and closed is provided at the fuel-feeding opening of the furnace body.

As a preferred technical solution, a furnace top partition is installed in the furnace body at the top of the burning furnace, a furnace sub-cavity is formed between the furnace top partition and the top of the furnace body, a fire outlet connected to the inner cavity of the burning furnace is provided in the middle of the furnace top partition, and a smoke exhaust port connected to the furnace sub-cavity is provided on the upper rear portion of the furnace body.

As a preferred technical solution, a secondary fuel injection port corresponding to the secondary cavity of the furnace body is provided on the front wall of the furnace body, and a secondary fuel injection door which can be opened and closed is provided at the secondary fuel injection port.

Due to the adoption of the above technical scheme, the beneficial effects of the utility model are as follows: since the furnace body air inlet is located at the bottom of the furnace body, it maximizes the use of the height of the furnace body under the premise of ensuring smooth air flow, so that the preheating stroke of the intake air is longest; and a plurality of air inlet distribution holes are arranged on the surface of the furnace support baffle. Since most of the air entering through the furnace body air inlet is in a horizontal direction, the air will be forced to change its movement direction from the original horizontal direction to the vertical direction after passing through the air inlet distribution holes. In the process of changing the movement direction, 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. It can move upward quickly and be stored in the combustion-supporting chamber; the ash hopper is provided at the bottom end of the furnace body. When the ash hopper is closed, the heat in the entire ash hopper chamber is also slightly higher, which can also achieve the purpose of air preheating, and a semi-closed chamber is formed between the side wall of the ash hopper and the furnace body to ensure that the air can fully enter and accumulate and flow here for preheating, so that the air can achieve the effect of air preheating in the entire stroke of moving upward from the bottom end of the furnace body. The utility model adopts the above combined design method, which is not only reasonably designed, 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.

BRIEF DESCRIPTION OF THE DRAWINGS

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.

FIG1 is a schematic structural diagram of an embodiment of the utility model;

FIG2 is a schematic diagram of the structure of an embodiment of the utility model;

Fig. 3 is a cross-sectional view taken along the line A-A in Fig. 2;

FIG4 is a schematic diagram of the structure of a combustion furnace according to an embodiment of the utility model;

5 is a cross-sectional view of a combustion furnace of an embodiment of the utility model;

In the figure: 1-furnace body; 2-burning furnace core; 2.1-cylindrical core body; 2.2-conical core body; 3-combustion-supporting chamber; 4-grate; 5-ash hopper; 6-firewood adding port of furnace body; 7-firewood adding door; 8-smoke exhaust port; 9-furnace cover; 10-furnace ring; 11-firewood adding port of furnace core; 12-furnace core supporting partition; 13-lower ash hole; 14-furnace body air inlet hole; 15-air inlet and air distribution hole; 16-furnace core air inlet hole; 17-air inlet baffle; 18-adjustment hole; 19-connecting rod; 20-adjustment handle; 21-furnace core top partition; 22-furnace body auxiliary chamber; 23-fire outlet; 24-auxiliary firewood adding port; 25-auxiliary firewood adding door.

DETAILED DESCRIPTION

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.

As shown in Figures 1 to 5, a high-efficiency air-intake combustion-supporting combustion furnace comprises a furnace body 1, a combustion furnace 2 is arranged in the furnace body 1, a combustion-supporting chamber 3 is formed between the combustion furnace 2 and the furnace body 1, the top and bottom ends of the combustion furnace 2 are both opened, a grate 4 and an ash hopper 5 are arranged below the combustion furnace 2, the grate 4 is a sliding adjustable grate, the ash hopper 5 is a pull-out ash hopper, a furnace body fuel adding port 6 is arranged on the front wall of the furnace body 1, and a fuel adding door 7 that can be opened and closed is correspondingly arranged at the furnace body fuel adding port 6, and a fuel adding door 7 that can be opened and closed is arranged on the upper rear portion of the furnace body 1. There is a smoke exhaust port 8, and the smoke exhaust port 8 is connected to a smoke exhaust chimney. A furnace cover 9 and a furnace ring 10 are provided at the top opening of the furnace body 1. The furnace cover 9 and the furnace ring 10 can be removed to place pots, kettles, etc. The structure of the above combustion furnace is basically the same as the structure 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 is innovatively designed by increasing the preheating stroke of the intake air and improving the angle of air uniformity, so as to better achieve the improvement of combustion efficiency and achieve the combustion effect of the vaporization furnace.

As shown in Figures 1 to 5, a furnace core 2 is provided with a firewood feeding port 11 corresponding to the furnace body firewood feeding port 6 on the front side of the combustion furnace core 2, a furnace core support baffle 12 supported on the bottom end of the combustion furnace core 2 is installed at the lower part of the furnace body 1, a lower ash hole 13 connected to the inner cavity of the combustion furnace core 2 is provided in the middle part of the furnace core support baffle 12, the grate 4 and the ash hopper 5 are located below the furnace core support baffle 12 and correspond to the lower ash hole 13; a furnace body air inlet hole 14 is provided on the side wall of the furnace body 1 below the furnace core support baffle 12, an air inlet distribution hole 15 connecting the furnace body air inlet hole 14 with the combustion-supporting chamber 3 is arranged on the furnace core support baffle 12, and a furnace core air inlet hole 16 is arranged on the upper part of the combustion furnace core 2.

The working principle of this embodiment is:

When the furnace body fuel inlet 6 is closed and the pull-out ash hopper 5 is completely closed, air cannot be provided through the furnace body fuel inlet 6 and the ash hopper 5, but air can enter the bottom of the furnace support baffle 12 through the furnace body air inlet hole 14 on the side, and then move upward through the air inlet distribution hole 15 to enter the combustion-supporting chamber 3, move upward along the combustion-supporting chamber 3, and finally enter the top of the combustion furnace 2 through the furnace air inlet hole to assist the combustion of the flue gas flowing through, so that the unburned fuel can be fully burned;

Since the furnace body air inlet 14 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 air inlet distribution holes 15 are arranged on the surface of the furnace support baffle 12. Since most of the air entering through the furnace body air inlet 14 is in a horizontal direction, the air will be forced to change its movement direction from the original horizontal direction to the vertical direction after passing through the air inlet distribution holes 15. In the process of changing the movement direction, the air is dispersed 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 In the combustion-supporting chamber 3; the ash hopper 5 is provided at the bottom end of the furnace body 1. When the ash hopper 5 is closed, the heat in the entire ash hopper 5 cavity is also slightly higher, which can also achieve the purpose of air preheating, and a semi-closed cavity is formed between the side wall of the ash hopper 5 and the furnace body 1, which ensures 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 end 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.

In order to further improve the combustion effect, the furnace fuel adding port 11 is connected to the combustion supporting chamber 3. Referring to FIG3, when the air entering the combustion supporting chamber 3 can move upward and enter the inner cavity of the combustion furnace 2 through the furnace air inlet hole 16, it can also directly enter from the furnace fuel adding port 11 and directly contact the fuel, providing a combustion supporting material 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. This arrangement is combined with the method of increasing the preheating stroke to achieve the most complete combustion as possible throughout the combustion process, thereby improving the performance of the combustion furnace.

2 , the furnace body air inlet holes 14 are arranged below the left and right sides of the furnace body 1 and are arranged in a plurality along the front-rear direction of the furnace body 1. The furnace body air inlet holes 14 are configured as long holes arranged in the up-down direction and are located below the furnace support baffle 12.

Referring to Figure 2, an air inlet hole adjustment device corresponding to the furnace body air inlet hole 14 is provided on the side wall of the furnace body 1, and the air inlet hole adjustment device includes an air inlet baffle 17 slidably installed on the inner wall of the furnace body 1, and the air inlet baffle 17 is arranged with baffle air holes corresponding to the furnace body air inlet hole 14, and an adjustment hole 18 is provided on the side wall of the furnace body 1, and a connecting rod 19 is fixedly installed on the outer wall of the air inlet baffle 17, and the connecting rod 19 extends out of the adjustment hole 18 and is connected to an adjustment handle 20. The shape of the shielding air hole is consistent with the shape of the air inlet hole of the furnace body 1. In the present embodiment, the adjusting hole 18 is a long hole in the left-right direction. The opening of the furnace body air inlet hole can be changed by sliding the adjusting handle 20 and driving the air inlet shield plate 17. When the shield air hole is completely corresponding to the furnace body air inlet hole, the opening of the furnace body air inlet hole is the largest at this time. The shield air hole can be dislocated by sliding the air inlet shield plate 17 so that the air inlet shield plate 17 blocks the furnace body air inlet hole to change the opening of the furnace body air inlet hole.

Referring to Figure 2, the air intake holes 15 are arranged on the left and right sides of the furnace support baffle 12 corresponding to the positions of the furnace body air intake holes 14. The air intake holes can be rectangular holes or densely packed small holes. It is best that the plurality of air intake holes are located on the left and right sides of the furnace support baffle 12, corresponding to the furnace body air intake holes on the left and right sides.

4 and 5, the lower part of the combustion furnace 2 is a cylindrical body 2.1, the upper part of the cylindrical body 2.1 is tapered upward to form a conical body 2.2, and the conical body 2.2 is tapered upward to achieve the effect of heat convergence. The furnace air inlet 16 can be arranged in multiple layers, and the upper and lower layers are staggered.

Referring to Fig. 2, a furnace top partition 21 is installed at the top of the combustion furnace 2 in the furnace body 1, and a furnace sub-cavity 22 is formed between the furnace top partition 21 and the top of the furnace body 1. A fire outlet 23 communicating with the inner cavity of the combustion furnace 2 is provided in the middle of the furnace top partition 21, and a smoke exhaust port 8 communicating with the furnace sub-cavity 22 is provided at the upper rear of the furnace body 1. A sub-fuel adding port 24 corresponding to the furnace sub-cavity 22 is provided on the front wall of the furnace body 1, and a sub-fuel adding door 25 that can be opened and closed is provided at the sub-fuel adding port 24. When fuel needs to be added, it can be added through the fuel adding door 7 at the bottom. When the bottom cannot be filled with fuel, it can be added from top to bottom through the sub-fuel adding port 24, which can realize multiple ways of adding large and small firewood, and is more convenient to use. The furnace sub-cavity 22 can also serve as a heating cavity for heating food, etc.

The fuel of the combustion furnace in the device can be wood, straw, etc., or coal.

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 (10)

1. A high-efficiency air-intake combustion-supporting combustion furnace, comprising a furnace body, a combustion furnace core is arranged in the furnace body, a combustion-supporting cavity is formed between the combustion furnace core and the furnace body, the top and bottom ends of the combustion furnace core are both opened, a grate and an ash hopper are arranged below the combustion furnace core, and a furnace body fuel adding port is arranged on the front wall of the furnace body, characterized in that: The front side of the combustion furnace is provided with a furnace fuel feeding port corresponding to the furnace body fuel feeding port, the lower part of the furnace body is equipped with a furnace support baffle supported on the bottom end of the combustion furnace, the middle part of the furnace support baffle is provided with a lower ash hole connected with the inner cavity of the combustion furnace, the grate and the ash hopper are located below the furnace support baffle and correspond to the lower ash hole; a furnace body air inlet is provided on the side wall of the furnace body below the furnace support baffle, air inlet distribution holes connecting the furnace body air inlet with the combustion-supporting cavity are arranged on the furnace support baffle, and a furnace air inlet is arranged on the upper part of the combustion furnace. 2. The high-efficiency air-inlet combustion-supporting combustion furnace as described in claim 1 is characterized in that the firewood feeding port of the furnace is connected to the combustion-supporting chamber. 3. The high-efficiency air-inlet combustion-supporting combustion furnace as described in claim 1 is characterized in that an air inlet hole adjustment device corresponding to the air inlet hole of the furnace body is provided on the side wall of the furnace body. 4. The high-efficiency air-inlet and combustion-assisted combustion furnace as described in claim 3 is characterized in that: the air inlet hole adjustment device includes an air inlet baffle slidably installed on the inner wall of the furnace body, the air inlet baffle is arranged with baffle air holes corresponding to the air inlet holes of the furnace body, the furnace body side wall is provided with an adjustment hole, 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. 5. The high-efficiency air-intake combustion-supporting combustion furnace according to claim 1, characterized in that: the furnace body air inlet holes are arranged below the left and right sides of the furnace body, and a plurality of them are arranged along the front-to-back direction of the furnace body. 6. The high-efficiency air-intake combustion-supporting combustion furnace as claimed in claim 1, characterized in that the air inlet distribution holes are arranged on the left and right sides of the furnace support partition and correspond to the positions of the furnace body air inlet holes. 7. The high-efficiency air-inlet combustion-supporting combustion furnace as claimed in claim 1, characterized in that the lower part of the combustion furnace is a cylindrical body, and the upper part of the cylindrical body is contracted upward to form a conical body. 8. The high-efficiency air-inlet combustion-supporting combustion furnace as claimed in any one of claims 1 to 7, characterized in that a fuel-adding door which can be opened and closed is provided at the fuel-adding opening of the furnace body. 9. The high-efficiency air-inlet combustion-supporting combustion furnace as described in claim 1 is characterized in that: a furnace top partition is installed in the furnace body at the top of the combustion furnace, a furnace body sub-cavity is formed between the furnace top partition and the top of the furnace body, 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 part of the furnace body. 10. The high-efficiency air-inlet combustion-supporting combustion furnace as described in claim 9 is characterized in that: an auxiliary fuel injection port corresponding to the auxiliary cavity of the furnace body is provided on the front wall of the furnace body, and an auxiliary fuel injection door that can be opened and closed is correspondingly provided at the auxiliary fuel injection port.