Nine-head furnace end with direct injection in center

Abstract

The utility model discloses a nine-head furnace end with a direct injection center. The furnace comprises a furnace body and an upper cover, the interior of the furnace body is hollow, the bottom of the furnace body is closed, an opening of the furnace body faces upwards, a plurality of first air inlet holes and second air inlet holes are formed in the furnace body, the outer diameter of the upper cover is larger than that of the furnace body, a plurality of supporting blocks are arranged on the inner side face of the upper cover, and a first air inlet gap is formed between the upper cover and the furnace body; a direct injection gas guide pipe, a center fire gas guide pipe and an outer ring fire gas guide pipe are arranged on the bottom face of the furnace body, and an upward direct injection opening is formed in the end portion of the inward end of the direct injection gas guide pipe and located in the center of the furnace body. A direct spraying pipe corresponding to the direct spraying opening is arranged in the center of the upper cover, a second air inlet gap is formed between the direct spraying pipe and the direct spraying opening, air can be well supplemented through the side face of the furnace end through the first air inlet hole, the second air inlet hole and the first air inlet gap, the oxygen mixing amount can be increased, and therefore the combustion efficiency is improved; the device has the characteristics of ingenious structure, environmental protection and energy conservation.

Description

Technical Field

[0001] This utility model relates to a stove head, and more particularly to a nine-head stove head with a central direct injection. Background Technology

[0002] The combustion efficiency of a burner is directly related to the amount of oxygen mixed in the gas mixture. Theoretically, the higher the oxygen content, the higher the combustion efficiency. However, traditional burners generally have top and bottom air intakes, which means that not enough air is mixed into the gas, affecting the combustion efficiency. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a nine-head central direct injection burner head, which can effectively solve the problems of insufficient air and low combustion efficiency caused by the air intake method of the traditional upper and lower air intake. By setting the first air intake hole, the second air intake hole and the first air intake gap, air can be better supplemented through the side of the burner head, which can increase the amount of oxygen mixed in, thereby improving the combustion efficiency. It has the characteristics of ingenious structure, environmental protection and energy saving.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a nine-head central direct injection stove head, comprising a stove body and a top cover, characterized in that: the interior of the stove body is hollow, the bottom is closed, and the opening faces upward; a plurality of first air inlets are provided on the circumferential sidewall of the stove body, the first air inlets are located at the lower end of the stove body, and a second air inlet is provided at the bottom of the stove body, the second air inlets being arranged radially and equidistantly with the center point of the stove body as the center point;

[0005] The outer diameter of the top cover is larger than the outer diameter of the furnace body. The circumferential edge of the top cover is provided with a downwardly inclined chamfered portion. The edge of the chamfered portion is provided with a vertically downward extending shielding edge. The inner side of the top cover is provided with several downwardly extending support blocks. The support blocks cooperate with the upper edge of the furnace body, thereby supporting the top cover to stand upright above the furnace body. The support blocks provide a first air intake gap for air circulation between the top cover and the furnace body.

[0006] Furthermore, the bottom surface of the furnace body is provided with a direct injection gas guide pipe, a central fire gas guide pipe and an outer ring fire gas guide pipe. The direct injection gas guide pipe and the central fire gas guide pipe both extend from the outside of the furnace body to the inside. The outer ring fire gas guide pipe surrounds the bottom surface of the furnace body. The direct injection gas guide pipe has an upward-facing direct injection nozzle at one end, which is located at the center of the furnace body.

[0007] Furthermore, a direct injection pipe corresponding to the direct injection port is provided at the center of the upper cover, and a second air intake gap is provided between the direct injection pipe and the direct injection port.

[0008] Furthermore, the inner sidewall of the furnace body is provided with several positioning blocks, the top of the positioning blocks being smaller at the top and larger at the bottom, and the support block is provided with positioning grooves that cooperate with the positioning blocks.

[0009] Furthermore, the furnace body is provided with furnace feet at the bottom, which are used to raise the furnace body to a corresponding height.

[0010] This utility model adopts the above-mentioned technical solution, overcomes the shortcomings of the background technology, and provides a nine-head central direct injection burner head. It can effectively solve the problems of insufficient air and low combustion efficiency in the air intake methods of traditional burner heads with top and bottom air intake. By setting the first air intake hole, the second air intake hole and the first air intake gap, air can be better supplemented through the side of the burner head, which can increase the amount of oxygen mixed in, thereby improving the combustion efficiency. It has the characteristics of ingenious structure, environmental protection and energy saving. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Appendix Figure 2 This is a cross-sectional structural diagram of the present invention.

[0013] Appendix Figure 3 This is a schematic diagram of the split structure of this utility model. Figure 1 .

[0014] Appendix Figure 4 This is a schematic diagram of the split structure of this utility model. Figure 2 .

[0015] In the diagram: Furnace body 1, first air inlet 101, second air inlet 102, direct injection air pipe 103, central flame air pipe 104, outer ring flame air pipe 105, direct injection nozzle 106, positioning block 107, furnace foot 108, central flame nozzle 109, outer ring flame nozzle 1010, top cover 2, chamfered part 201, shielding edge 202, support block 203, direct injection pipe 204, positioning groove 205, central flame pipe 206, outer ring flame pipe 207, first air inlet gap 3, second air inlet gap 4. Detailed Implementation

[0016] The following descriptions of the embodiments are made with reference to the accompanying drawings, illustrating specific embodiments in which the present invention can be implemented. The directional terms used in this invention, such as up, down, front, back, left, right, inside, outside, side, etc., are merely for the purpose of referring to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding the present invention, and not for limiting the present invention. In the drawings, structurally similar units are indicated by the same reference numerals.

[0017] The following description, in conjunction with the accompanying drawings, further clarifies the specific embodiments of the present invention, making the technical solution and its beneficial effects clearer and more explicit.

[0018] See appendix Figures 1 to 4 The present invention includes a furnace body 1 and a top cover 2. The furnace body 1 is hollow inside, closed at the bottom, and has an opening facing upward. A plurality of first air inlets 101 are provided on the circumferential side wall of the furnace body 1. The first air inlets 101 are located at the lower end of the furnace body 1. A second air inlet 102 is provided at the bottom of the furnace body 1. The second air inlets 102 are arranged radially and equidistantly with the center point of the furnace body 1 as the center point.

[0019] The outer diameter of the upper cover 2 is larger than the outer diameter of the furnace body 1. The upper cover 2 has a downwardly inclined chamfered part 201 on its circumferential edge. The edge of the chamfered part 201 has a vertically downward extending blocking edge 202. The inner side of the upper cover 2 has a plurality of downwardly extending support blocks 203. The support blocks 203 cooperate with the upper edge of the furnace body 1, thereby supporting the upper cover 2 to stand upright above the furnace body 1. The support blocks 203 leave a first air intake gap 3 between the upper cover 2 and the furnace body 1 for air circulation.

[0020] Furthermore, the bottom surface of the furnace body 1 is provided with a direct injection gas guide pipe 103, a central fire gas guide pipe 104, and an outer ring fire gas guide pipe 105. The direct injection gas guide pipe 103 and the central fire gas guide pipe 104 both extend from the outside of the furnace body 1 inward. The outer ring fire gas guide pipe 105 surrounds the bottom surface of the furnace body 1. The direct injection gas guide pipe 103 has an upward-facing direct injection nozzle 106 at one end, and the direct injection nozzle 106 is located at the center of the furnace body 1.

[0021] Furthermore, the upper cover 2 is provided with a direct injection pipe 204 corresponding to the direct injection port 106 at its center position, and a second air intake gap 4 is provided between the direct injection pipe 204 and the direct injection port 106.

[0022] Furthermore, the inner wall of the furnace body 1 is provided with a plurality of positioning blocks 107, the top of the positioning block 107 being smaller at the top and larger at the bottom, and the support block 203 is provided with positioning grooves 205 that cooperate with the positioning blocks 107.

[0023] Furthermore, a furnace foot 108 is provided below the furnace body 1, which is used to raise the furnace body 1 to a corresponding height.

[0024] When in use, air enters the furnace body 1 through the first air inlet 101, the second air inlet 102 and the first air inlet gap 3, and mixes with the fuel gas in the furnace body. This increases the amount of air entering and improves the combustion efficiency.

[0025] The gas from the direct injection pipe 103 is injected from the direct injection port 106 toward the direct injection pipe 204. Air enters from the second intake gap 4 and mixes with the gas therein. The final mixed gas is ejected from the direct injection pipe 204 and burned.

[0026] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this utility model all fall within the protection scope of this utility model and should be defined by the claims.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In the description of this specification, the use of terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A nine-port center-fired direct-fired burner tip comprising a body and an upper cap, characterized by: The furnace body is hollow, the bottom is closed, the opening is upward, the first air inlet hole is arranged on the circumferential side wall of the furnace body, the first air inlet hole is arranged at the lower end of the furnace body, the second air inlet hole is arranged on the bottom of the furnace body, and the second air inlet hole is arranged radially and equidistantly with the center point of the furnace body as the circle point. The outer diameter of the upper cover is greater than the outer diameter of the furnace body, the circumferential edge of the upper cover is provided with a downward inclined chamfer portion, the edge of the chamfer portion is provided with a vertically downward extending shielding edge, the inner side of the upper cover is provided with a plurality of downward extending supporting blocks, the supporting blocks are matched with the upper edge of the furnace body, so that the upper cover is supported and stands above the furnace body, and the first air inlet gap for air circulation is left between the upper cover and the furnace body through the supporting blocks.

2. A nine-port central strip injection burner head as claimed in claim 1, wherein: The bottom surface of the furnace body is provided with a straight injection gas guide pipe, a center fire gas guide pipe and an outer ring fire gas guide pipe, the straight injection gas guide pipe and the center fire gas guide pipe extend from the outside to the inside of the furnace body, the outer ring fire gas guide pipe surrounds the bottom surface of the furnace body, the straight injection gas guide pipe is provided with an upward straight injection port at the inner end, and the straight injection port is located at the center position of the furnace body.

3. A nine-port central strip injection burner head as defined in claim 2, wherein: The center position of the upper cover is provided with a straight injection pipe corresponding to the straight injection port, and a second air inlet gap is arranged between the straight injection pipe and the straight injection port.

4. A nine-port central strip injection burner head as defined in claim 1, wherein: The inner side wall of the furnace body is provided with a plurality of positioning blocks, the top of the positioning block is small at the top and large at the bottom, and the supporting block is provided with a positioning groove matched with the positioning block.

5. A nine-port center belt direct injection burner head as defined in claim 1, wherein: The furnace body is provided with a furnace leg below, and the furnace leg is used to lift the furnace body to a corresponding height.

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