Secondary and tertiary combustors and combustion furnace with combustors

By designing secondary and tertiary burners in the combustion furnace and providing multiple gas supply, the existing combustion furnace's fuel inadequate combustion and serious pollution are solved, and more efficient combustion and lower pollution are achieved.

CN222651349UActive Publication Date: 2025-03-21LANZHOU HUANENG SOLAR ENERGY
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Patent Information

Application Number
CN202420565117.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-22
Publication Date
2025-03-21
Estimated Expiration
2034-03-22

AI Technical Summary

Technical Problem

The existing combustion furnace has only one combustion chamber and limited intake air, resulting in insufficient fuel combustion, low resource utilization, and serious flue gas pollution.

Method used

A secondary and tertiary burner is designed to provide secondary and tertiary gas supply by adding a second air intake assembly and a third air intake assembly to improve combustion efficiency. The second air outlet is arranged inside the flame, and the third air outlet is arranged outside the flame to ensure that both inside and outside the flame are fully supplied with oxygen.

Benefits of technology

By increasing the air inlet volume, improving combustion efficiency, making combustion more sufficient, flue gas can be fully burned, reducing air pollution, and improving fuel utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a secondary, tertiary burner, including second intake subassembly and third intake subassembly, second intake subassembly is located the lower side of third intake subassembly, second intake subassembly includes second intake pipe, second air feed pipe and second gas distribution chamber, second intake pipe passes through second air feed pipe and second gas distribution chamber intercommunication, and second intake pipe passes through second air feed pipe and second gas distribution chamber intercommunication. The second gas distribution cavity is provided with a plurality of second gas outlet holes, the second gas outlet holes are located outside the second gas distribution cavity, the third gas inlet assembly comprises a third gas inlet pipe, a third gas feeding pipe and a third combustion cavity, the third gas inlet pipe is communicated with the third gas feeding pipe, and the third gas feeding pipe is communicated with the third combustion cavity through a plurality of third gas outlet holes; the third air outlet hole is located outside the third combustion cavity.
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Description

Technical Field

[0001] The utility model belongs to the field of combustion furnaces, and in particular relates to a secondary and tertiary burner. Background Art

[0002] The combustion stove is a common stove used in winter to keep warm. It is especially suitable for the cold and humid south and the rural areas in the north without heating. It mainly delivers heat by heat diffusion.

[0003] The existing stove has only one combustion chamber, and the lower part of the combustion chamber has a single air intake. Due to the limited air intake, the fuel is not burned fully, and the resource utilization rate is not high. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a secondary and tertiary burner to solve the above problems by increasing the air intake and improving the combustion efficiency.

[0005] In order to solve the above problems existing in the prior art, the technical solution adopted by the utility model is:

[0006] A secondary and tertiary burner comprises a second air intake assembly and a third air intake assembly.

[0007] The second air intake assembly is located at the lower side of the third air intake assembly, and the second air intake assembly includes a second air intake pipe, a second air supply pipe, and a second air distribution cavity. The second air intake pipe is connected to the second air distribution cavity through the second air supply pipe. The second air distribution cavity is provided with a plurality of second air outlets, and the second air outlets are located outside the second air distribution cavity. The outside mentioned here refers to being distributed along the outer wall of the second air distribution cavity. Since the second air distribution cavity is at the center of the flame, the air from the second air outlets directly enters the center of the flame to supply oxygen to the center of the flame.

[0008] The third air intake assembly includes a third air intake pipe, a third air supply pipe and a third combustion chamber. The third air intake pipe is connected to the third air supply pipe. The third air supply pipe is connected to the third combustion chamber through multiple third air outlet holes. The third air outlet holes are located outside the third combustion chamber. The outside here means that the third air outlet holes are distributed along the edge of the third combustion chamber. The flame burns in the third combustion chamber, and the air coming out of the third air outlet holes provides oxygen to the outside of the flame.

[0009] The burner is used for solid fuel, which is commonly known as a coal stove. It uses a secondary air intake component and a tertiary air intake component to provide secondary and tertiary air supply to the burning flame, which can improve the combustion efficiency and make the combustion more complete.

[0010] The second air outlet is arranged inside the flame, and the third air outlet is arranged outside the flame, so that part of the air directly enters the inner circle of the flame, and the other part of the air is in the outer circle of the flame, so that the combustion efficiency inside and outside the flame can be improved to a certain extent. The outside of the second air distribution cavity is the second combustion cavity (not marked in the figure), and the flame burns in the first combustion cavity, the second combustion cavity and the third combustion cavity.

[0011] A secondary and tertiary burner comprises a second air intake assembly and a third air intake assembly;

[0012] The second air intake assembly is located at the lower side of the third air intake assembly, and the second air intake assembly includes a second air intake pipe, a second air supply pipe and a second combustion chamber. The second air intake pipe is connected to the second air supply pipe, and the second air supply pipe is connected to the second combustion chamber through a second air outlet hole, and the second air outlet hole is located outside the second combustion chamber; the outside here means that the second air outlet holes are arranged in a circle along the edge of the second combustion chamber.

[0013] The third air intake assembly includes a third air intake pipe, a third air supply pipe and a third air distribution chamber. The third air intake pipe is connected to the third air distribution chamber through the third air supply pipe. The third air distribution chamber is provided with a plurality of third air outlets. The third air outlets are located in the middle of the burner. The third air outlets are located outside the third air distribution chamber. The outside here means that the third air outlets are arranged in a circle along the edge of the third air distribution chamber. Since the third air distribution chamber is located in the center of the flame, the oxygen coming out of the third air distribution chamber can directly supply oxygen to the inside of the flame. The outside of the third air distribution chamber is the third combustion chamber (not shown in the figure). The combustion of the flame is carried out in the first combustion chamber, the second combustion chamber and the third combustion chamber.

[0014] The burner is used for solid fuel, which is commonly known as a coal stove. It uses a secondary air intake component and a tertiary air intake component to provide secondary and tertiary air supply to the burning flame, which can improve the combustion efficiency and make the combustion more complete.

[0015] The secondary air outlet is set inside the flame and the tertiary air outlet is set outside the flame, so that part of the air directly enters the inner circle of the flame and the other part of the air is in the outer circle of the flame, thereby improving the combustion efficiency inside and outside the flame to a certain extent.

[0016] The combustion chamber is a cavity surrounded by mud (the structure surrounded by mud is called the inner shell of the combustion furnace), and the secondary and tertiary burners are connected to the furnace shell.

[0017] A combustion furnace with secondary and tertiary burners, comprising a furnace body, wherein a combustion chamber and a heating chamber are arranged inside the furnace body, and the heating chamber and the combustion chamber are connected;

[0018] The combustion chamber is connected with secondary and tertiary burners, and the heating chamber is connected with a heating box.

[0019] The combustion chamber inside the furnace body is the combustion area of ​​the solid fuel. The ash outlet at the bottom of the combustion chamber is also the primary air inlet, through which the main air for fuel combustion enters. The existing furnace body has only one primary air inlet with limited air intake, which results in insufficient fuel combustion and generates large amounts of smoke during use. Not only is the fuel utilization rate low, but the air pollution is also serious.

[0020] Furthermore, the combustion chamber is connected to a feed port, an ash outlet is provided on the lower side of the combustion chamber, and secondary and tertiary burners are connected to the upper side of the combustion chamber. One end of the second air inlet pipe away from the second air supply pipe extends to the outside of the furnace body, and one end of the third air inlet pipe away from the third air supply pipe extends to the outside of the furnace body.

[0021] Furthermore, the second air inlet pipe and the third air inlet pipe are both used to let in air. Since the air at the second air outlet and the third air outlet will move upward after being heated, low pressure will be generated at the second air outlet and the third air outlet. At this time, new air will be sucked in through the second air inlet pipe and the third air inlet pipe, thereby realizing automatic air intake.

[0022] The ends of the second air inlet pipe and the third air inlet pipe can extend from the bottom of the furnace body without affecting the normal use of the stove.

[0023] Furthermore, a furnace surface is provided on the top of the furnace body, and a hanging rod is connected to the side wall of the furnace body. A hanging rod is provided on the side wall of the furnace body, and some articles can be hung on the hanging rod for drying.

[0024] The beneficial effects of the utility model: the utility model adds secondary and tertiary burners to enable the smoke to be fully burned, and a heating chamber is provided. The heater is detachably connected to the heating chamber, and the heating chamber can be used to heat objects. Since the heating chamber is located inside the furnace body, the thermal efficiency is high and the heating speed is fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0026] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0027] Figure 3 This is a schematic diagram of Example 1.

[0028] Figure 4 This is an internal schematic diagram of Example 1.

[0029] Figure 5 This is a schematic diagram of the installation of Example 1.

[0030] Figure 6 This is a schematic diagram of Example 2.

[0031] Figure 7 This is an internal schematic diagram of Example 2.

[0032] Figure 8 This is a schematic diagram of the installation of Example 2.

[0033] In the figure: 1-furnace body; 2-combustion chamber; 3-feed port; 4-second air inlet assembly; 41-second air distribution chamber; 42-second air supply pipe; 43-second air outlet; 44-second air inlet pipe; 45-second combustion chamber; 5-third air inlet assembly; 51-third air distribution chamber; 52-third air outlet; 53-third air supply pipe; 54-third air inlet pipe; 55-third combustion chamber; 6-ash outlet; 7-heating box; 8-furnace surface; 9-hanging rod; 10-heating chamber. DETAILED DESCRIPTION

[0034] The utility model will be further described below in conjunction with the accompanying drawings and the accompanying drawings.

[0035] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0036] The terms “first”, “second”, “third”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0039] Embodiment 1:

[0040] like Figure 1-5 As shown, a secondary and tertiary burner includes a second air intake assembly 4 and a third air intake assembly 5.

[0041] The second air intake assembly 4 is located at the lower side of the third air intake assembly 5. The second air intake assembly 4 includes a second air intake pipe 44, a second air supply pipe 42 and a second air distribution cavity 41. The second air intake pipe 44 is connected to the second air distribution cavity 41 through the second air supply pipe 42. The second air distribution cavity 41 is provided with a plurality of second air outlet holes 43. The second air outlet holes 43 are located outside the second air distribution cavity 41. The outside mentioned here refers to a circle distributed along the outer wall of the second air distribution cavity 41. Since the second air distribution cavity 41 is at the center of the flame, the air from the second air outlet holes 43 directly enters the center of the flame to supply oxygen to the center of the flame.

[0042] The third air intake assembly 5 includes a third air intake pipe 54, a third air supply pipe 53 and a third combustion chamber 55. The third air intake pipe 54 is connected to the third air supply pipe 53. The third air supply pipe 53 is connected to the third combustion chamber 55 through multiple third air outlet holes 52. The third air outlet holes 52 are located outside the third combustion chamber 55. The outside here means that the third air outlet holes 52 are distributed along the edge of the third combustion chamber 55. The flame burns in the third combustion chamber 55, and the air coming out of the third air outlet holes 52 supplies oxygen to the outside of the flame.

[0043] The burner is used for solid fuel, which is commonly known as a coal stove. It uses a secondary air intake component and a tertiary air intake component to provide secondary and tertiary air supply to the burning flame, which can improve the combustion efficiency and make the combustion more complete.

[0044] The second air outlet 43 is arranged inside the flame, and the third air outlet 52 is arranged outside the flame, so that part of the air directly enters the inner circle of the flame, and the other part of the air is in the outer circle of the flame, so that the combustion efficiency inside and outside the flame can be improved to a certain extent. The outside of the second air distribution cavity 41 is the second combustion cavity (not marked in the figure), and the combustion of the flame is carried out in the first combustion cavity, the second combustion cavity and the third combustion cavity 55.

[0045] Embodiment 2:

[0046] like Figure 1 , 2 6-8, a secondary and tertiary burner, comprising a second air intake assembly 4 and a third air intake assembly 5;

[0047] The second air intake assembly 4 is located at the lower side of the third air intake assembly 5, and the second air intake assembly 4 includes a second air intake pipe 44, a second air supply pipe 42 and a second combustion chamber 45. The second air intake pipe 44 is connected to the second air supply pipe 42, and the second air supply pipe 42 is connected to the second combustion chamber 45 through a second air outlet hole, and the second air outlet hole 43 is located outside the second combustion chamber 45; the outside here means that the second air outlet holes 43 are arranged in a circle along the edge of the second combustion chamber 45.

[0048] The third air intake assembly 5 includes a third air intake pipe 54, a third air supply pipe 53 and a third air distribution chamber 51. The third air intake pipe 54 is connected to the third air distribution chamber 51 through the third air supply pipe 53. The third air distribution chamber 51 is provided with a plurality of third air outlet holes 52. The third air outlet holes 52 are located in the middle of the burner. The third air outlet holes 52 are located outside the third air distribution chamber 51. The outside here means that the third air outlet holes 52 are arranged in a circle along the edge of the third air distribution chamber 51. Since the third air distribution chamber 51 is located in the center of the flame, the oxygen coming out of the third air distribution chamber 51 can directly supply oxygen to the inside of the flame. The outside of the third air distribution chamber 51 is the third combustion chamber (not shown in the figure). The combustion of the flame is carried out in the first combustion chamber, the second combustion chamber 45 and the third combustion chamber.

[0049] The burner is used for solid fuel, which is commonly known as a coal stove. It uses a secondary air intake component and a tertiary air intake component to provide secondary and tertiary air supply to the burning flame, which can improve the combustion efficiency and make the combustion more complete.

[0050] The secondary air outlet is set inside the flame and the tertiary air outlet is set outside the flame, so that part of the air directly enters the inner circle of the flame and the other part of the air is in the outer circle of the flame, thereby improving the combustion efficiency inside and outside the flame to a certain extent.

[0051] The combustion chamber 2 is a cavity surrounded by mud (the structure surrounded by mud is called the inner shell of the combustion furnace), and the secondary and tertiary burners are connected to the furnace shell.

[0052] Embodiment 3:

[0053] On the basis of embodiments 1 and 2, a combustion furnace with secondary and tertiary burners comprises a furnace body 1, wherein a combustion chamber 2 and a heating chamber 10 are provided inside the furnace body 1, and the heating chamber 10 is connected to the combustion chamber 2;

[0054] The combustion chamber 2 is connected to secondary and tertiary burners, and the heating chamber 10 is connected to a heating box 7 .

[0055] The combustion chamber 2 inside the furnace body 1 is the combustion area of ​​the solid fuel. The ash outlet 6 at the bottom of the combustion chamber 2 is also a primary air inlet, through which the main air for fuel combustion enters. The existing furnace body 1 has only one primary air inlet with limited air intake, which results in insufficient fuel combustion replenishment and generates a large amount of smoke during use. Not only is the fuel utilization rate low, but the air pollution is also serious.

[0056] The present application adds secondary and tertiary burners to enable the flue gas to burn fully, and sets a heating chamber 10. The heater is detachably connected to the heating chamber 10. The heating chamber 10 can be used to heat objects. Since the heating chamber 10 is located inside the furnace body 1, the thermal efficiency is high and the heating speed is fast.

[0057] Embodiment 4:

[0058] On the basis of Example 3, the combustion chamber 2 is connected to a feed port 3, an ash outlet 6 is provided on the lower side of the combustion chamber 2, and secondary and tertiary burners are connected to the upper side of the combustion chamber 2. One end of the second air inlet pipe 44 away from the second air supply pipe 42 extends to the outside of the furnace body 1, and one end of the third air inlet pipe 54 away from the third air supply pipe 53 extends to the outside of the furnace body 1.

[0059] The second air inlet pipe 44 and the third air inlet pipe 54 are both used for letting in air. Since the air at the second air outlet 43 and the third air outlet 52 will move upward after being heated, low pressure will be generated at the second air outlet 43 and the third air outlet 52. At this time, new air will be sucked in through the second air inlet pipe 44 and the third air inlet pipe 54, thereby realizing automatic air intake.

[0060] The ends of the second air inlet pipe 44 and the third air inlet pipe 54 can extend from the bottom of the furnace body 1 without affecting the normal use of the stove.

[0061] A furnace surface 8 is provided on the top of the furnace body 1 , and a hanging rod 9 is connected to the side wall of the furnace body 1 .

[0062] A hanging rod 9 is provided on the side wall of the furnace body 1, and some articles can be hung on the hanging rod 9 for drying.

[0063] The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. A secondary and tertiary burner, characterized in that: It comprises a second air intake assembly (4) and a third air intake assembly (5); The second air intake assembly (4) is located at the lower side of the third air intake assembly (5), and the second air intake assembly (4) comprises a second air intake pipe (44), a second air supply pipe (42) and a second air distribution cavity (41), the second air intake pipe (44) is connected to the second air distribution cavity (41) through the second air supply pipe (42), and the second air distribution cavity (41) is provided with a plurality of second air outlet holes (43); The third air intake assembly (5) comprises a third air intake pipe (54), a third air supply pipe (53) and a third combustion chamber (55); the third air intake pipe (54) is connected to the third air supply pipe (53); and the third air supply pipe (53) is connected to the third combustion chamber (55) through a plurality of third air outlet holes (52).

2. A secondary and tertiary burner, characterized in that: It comprises a second air intake assembly (4) and a third air intake assembly (5); The second air intake assembly (4) is located at the lower side of the third air intake assembly (5), the second air intake assembly (4) comprises a second air intake pipe (44), a second air supply pipe (42) and a second combustion chamber (45), the second air intake pipe (44) is connected to the second air supply pipe (42), and the second air supply pipe (42) is connected to the second combustion chamber (45) through a second air outlet; The third air intake assembly (5) comprises a third air intake pipe (54), a third air supply pipe (53) and a third air distribution chamber (51); the third air intake pipe (54) is connected to the third air distribution chamber (51) via the third air supply pipe (53); the third air distribution chamber (51) is provided with a plurality of third air outlet holes (52); and the third air outlet holes (52) are located in the middle of the burner.

3. A combustion furnace with a secondary or tertiary burner as claimed in claim 1 or 2, characterized in that: It comprises a furnace body (1), wherein a combustion chamber (2) and a heating chamber (10) are provided inside the furnace body (1), and the heating chamber (10) and the combustion chamber (2) are connected; The combustion chamber (2) is connected to secondary and tertiary burners, and the heating chamber (10) is connected to a heating box (7).

4. The combustion furnace according to claim 3, characterized in that: The combustion chamber (2) is connected to a feed port (3), an ash outlet (6) is provided on the lower side of the combustion chamber (2), and a secondary burner and a tertiary burner are connected to the upper side of the combustion chamber (2). One end of the second air inlet pipe (44) away from the second air supply pipe (42) extends to the outside of the furnace body (1), and one end of the third air inlet pipe (54) away from the third air supply pipe (53) extends to the outside of the furnace body (1).

5. The combustion furnace according to claim 3, characterized in that: The top of the furnace body (1) is provided with a furnace surface (8), and the side wall of the furnace body (1) is connected with a hanging rod (9).