Self-cooling pure oxygen burner

Abstract

The utility model discloses a self-cooling pure oxygen burner, which belongs to the technical field of industrial burners, and comprises a burner, a concave notch is arranged on one side of the burner, a gas pipe and an oxygen pipe are arranged through the burner, the gas outlet end of the gas pipe extends out of the notch, and the end of the oxygen pipe is placed in the notch. The utility model is used to reduce the temperature of the burner brick and the gas nozzle during the combustion process, and to improve the service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial burners, in particular to a self-cooling pure oxygen burner. Background Art

[0002] The theoretical temperature of pure oxygen and natural gas combustion can reach over 2500℃. Due to the high temperature, the material requirements for burner bricks and gas nozzles are very high, and the life of burner bricks and gas nozzles is short. At present, most pure oxygen burner burner bricks need to be replaced in about 3 to 4 months, and gas nozzles need to be replaced in about 3 months. Therefore, a pure oxygen burner that can reduce the temperature of burner bricks and gas nozzles and increase their service life is proposed. Utility Model Content

[0003] In view of the above problems, the utility model provides a self-cooling pure oxygen burner, which is used to reduce the temperature of the burner bricks and the gas nozzle during the combustion process and increase the service life.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a self-cooling pure oxygen burner includes a burner, a concave notch is arranged on one side of the burner, a gas pipe and an oxygen pipe are penetrated through the burner, the gas outlet end of the gas pipe extends out of the notch, and the end of the oxygen pipe is placed in the notch.

[0005] As a further improvement of the above solution, the gas pipe is located at the center of the recess, and a plurality of oxygen pipes are symmetrically arranged around the center of the gas pipe.

[0006] As a further improvement of the above solution, a first nozzle is detachably provided at the gas outlet end of the gas pipe, a hollow cavity is provided in the first nozzle, and a plurality of first spray holes are provided at the gas outlet end to disperse and discharge the gas to all sides.

[0007] As a further improvement of the above solution, the gas outlet end of the oxygen tube is detachably provided with a second nozzle, and the second nozzle is provided with a plurality of second spray holes for spraying oxygen to all sides.

[0008] As a further improvement of the above solution, the outer sides of the oxygen pipe and the fuel gas pipe are sleeved with protective tubes fixed to the burner.

[0009] As a further improvement of the above solution, a pressurizing port is further provided at the gas inlet end of the gas pipe.

[0010] As a further improvement of the above solution, a support ring is sleeved on the oxygen tube, and the support ring is buckled to the end of the protective tube.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By extending the gas pipe out of the notch and placing the oxygen pipe in the notch, when the oxygen pipe replenishes oxygen inside, it blows toward the burner and the gas pipe, thereby lowering the temperature, thereby achieving self-cooling and extending the life of the burner and the gas pipe.

[0013] 2. By setting the first nozzle at the port of the gas pipe and the second nozzle at the port of the oxygen pipe, the gas and oxygen can be dispersed, so that the gas can fully contact with oxygen for combustion, and when the dispersed oxygen is blown in, more positions of the burner can be cooled.

[0014] 3. The protective tube can protect the gas pipe and the oxygen pipe, and can also facilitate maintenance and replacement. The support ring can support the oxygen pipe, so that the oxygen pipe can be stably fixed to the protective tube.

[0015] 4. The pressure port is set to allow compressed air to be introduced, thereby increasing the injection speed of the gas and making the combustion more complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 Structural diagram of the middle A direction;

[0018] Figure 3 for Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0019] Figure 4 for Figure 1 A schematic diagram of the local enlarged structure at C in the middle;

[0020] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure in the middle DD direction;

[0021] Figure 6 It is a schematic diagram of the structure of the end portion of the protective tube connected with the oxygen tube;

[0022] Figure 7 For attachment Figure 4 Schematic diagram of the structure of the support ring along the E direction.

[0023] In the figure: 10, fire port; 11, notch; 12, gas pipe; 121, pressurization port; 13, oxygen pipe; 14, first nozzle; 141, cavity; 142, first spray hole; 15, second nozzle; 151, second spray hole; 16, protective tube; 17, support ring. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution, the utility model is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0025] like Figure 1-7 As shown, the specific scheme of this embodiment is: a self-cooling pure oxygen burner includes a burner 10, a concave notch 11 is set on one side of the burner 10, and the side where the notch 11 is set is the combustion side. A gas pipe 12 and an oxygen pipe 13 are set through the burner 10, and the gas pipe 12 is located at the center of the notch 11. A plurality of oxygen pipes 13 are symmetrically arranged around the center of the gas pipe 12. Please refer to the attached Figure 2 As shown, in this embodiment, three oxygen pipes 13 are symmetrically arranged around the center of the gas pipe 12. By arranging the gas pipe 12 in the middle position, the gas can be effectively in contact with oxygen from all positions when it is sprayed out, thereby improving the mixing effect and making the combustion more complete. The gas outlet end of the gas pipe 12 extends out of the recess 11, and the end of the oxygen pipe 13 is placed in the recess 11. By extending the gas outlet end of the gas pipe 12 out of the recess 11, the combustion position can be kept away from the burner 10, and the oxygen introduced by the oxygen pipe 13 can blow the wall of the recess 11 and the surface of the gas pipe 12, which can have a cooling effect, thereby cooling the burner 10 and the gas pipe 12 to increase the service life.

[0026] like Figure 1 , 3 As shown, as a preferred mode of the above embodiment, the gas outlet end of the gas pipe 12 is detachably provided with a first nozzle 14. Specifically, the first nozzle 14 and the gas pipe 12 are connected by threads, a hollow cavity 141 is provided in the first nozzle 14, and a plurality of first spray holes 142 are provided at the gas outlet end of the first nozzle 14 to disperse and discharge the gas to the surroundings. Specifically, the gas outlet end of the first nozzle 14 presents a multi-section conical surface, and the first spray holes 142 are provided on the multi-section conical surface. Therefore, when the gas is sprayed from the gas pipe 12 into the cavity 141 and then sprayed outward through the first spray holes 142, the gas can be effectively, evenly and dispersedly sprayed outward to facilitate sufficient combustion.

[0027] A pressurizing port 121 is also provided at the gas inlet end of the gas pipe 12 . The pressurizing port 121 is provided mainly for receiving high-pressure gas to increase the injection speed of the gas in the gas pipe 12 .

[0028] like Figure 1 , 4As shown, as a preferred embodiment of the above embodiment, the gas outlet end of the oxygen pipe 13 is detachably provided with a second nozzle 15. Specifically, the second nozzle 15 and the oxygen pipe 13 are connected by threads. The second nozzle 15 is provided with a plurality of second spray holes 151 for spraying oxygen to the surroundings. The second spray holes 151 are mainly provided to facilitate the sprayed oxygen to be dispersed and sprayed to the surroundings to improve the effect of mixing with the fuel gas. Moreover, the dispersed oxygen can blow the fuel gas pipe 12 and the recess 11 when sprayed in again, thereby cooling the burner 10 and the fuel gas pipe 12.

[0029] like Figure 1 As shown, as a preferred embodiment of the above embodiment, the outer sides of the oxygen pipe 13 and the gas pipe 12 are provided with a protective tube 16 fixed to the burner 10. The protective tube 16 is a supporting sleeve that can protect the gas pipe 12 and the oxygen pipe 13, making it more convenient to disassemble and repair them.

[0030] like Figure 1 , 4 , 5, 6, and 7, as a preferred embodiment of the above embodiment, a support ring 17 is sleeved on the oxygen tube 13, and the support ring 17 is buckled on the end of the protective tube 16. Specifically, the structure of the support ring 17 is a cover body with a groove in the middle, and a through hole is provided in the groove. The groove is mainly provided to facilitate the mutual buckling with the end of the protective tube 16, and the through hole in the groove is mainly provided to facilitate the sleeve connection on the oxygen tube 13, and the outer surface of the oxygen tube 13, the surface of the protective tube 16, the inner wall of the groove of the oxygen tube 13, and the hole wall of the through hole are all provided with mutually matching planes, refer to the attached Figure 5 , 6 As shown in FIG. 7 , the plane is mainly provided to ensure a stable mutual connection between the support ring 17 and the oxygen tube 13 and the protective tube 16 so that relative rotational deviation does not occur.

[0031] It should be noted that, in this article, the terms include, contain or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used in this article to illustrate the principle and implementation of the technical solution of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. The above are only preferred implementations of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, for ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements, modifications or changes can be made, and the above technical features can also be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. Self-cooling pure oxygen burner, characterized in that: The invention comprises a burner (10), one side of which is provided with an inwardly concave notch (11), a gas pipe (12) and an oxygen pipe (13) penetrating the burner (10), a gas outlet end of the gas pipe (12) extending out of the notch (11), and an end of the oxygen pipe (13) being placed in the notch (11).

2. The self-cooling pure oxygen burner according to claim 1, characterized in that: The gas pipe (12) is located at the center of the notch (11), and a plurality of oxygen pipes (13) are symmetrically arranged around the center of the gas pipe (12).

3. The self-cooling pure oxygen burner according to claim 1, characterized in that: A first nozzle (14) is detachably provided at the gas outlet end of the gas pipe (12), a hollow chamber (141) is provided in the first nozzle (14), and a plurality of first spray holes (142) are provided at the gas outlet end for dispersing and discharging the gas to all sides.

4. The self-cooling pure oxygen burner according to claim 1, characterized in that: The gas outlet end of the oxygen pipe (13) is detachably provided with a second nozzle (15), and the second nozzle (15) is provided with a plurality of second spray holes (151) for spraying oxygen to all sides.

5. The self-cooling pure oxygen burner according to any one of claims 1 to 4, characterized in that: The outer sides of the oxygen pipe (13) and the fuel gas pipe (12) are sleeved with a protective pipe (16) fixed to the burner (10).

6. The self-cooling pure oxygen burner according to claim 5, characterized in that: A pressurizing port (121) is also provided at the gas inlet end of the gas pipe (12).

7. The self-cooling pure oxygen burner according to claim 5, characterized in that: A support ring (17) is sleeved on the oxygen tube (13), and the support ring (17) is buckled on the end of the protective tube (16).

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