Flame diffusion type oxygen-enriched burner

Abstract

The utility model relates to the technical field of combustors, and discloses a flame diffusion type oxygen-enriched combustor which solves the problem that an existing combustor is poor in using effect and comprises a mixed air inlet cover, a draught fan is fixedly arranged on one side of the mixed air inlet cover, and a controller is fixedly arranged on the other side of the mixed air inlet cover. A natural gas inlet pipe and an oxygen inlet pipe are fixedly arranged at the top end of the mixed gas inlet cover, a combined type combustion spray pipe is fixedly arranged at one end of the mixed gas inlet cover, and the combined type combustion spray pipe is composed of a pipe body, a first expansion and contraction mixing cover, a second expansion and contraction mixing cover and a combustion head. The first expanding and shrinking mixing cover and the second expanding and shrinking mixing cover are both fixedly connected into the pipe body, and the combustion head is fixedly connected to the end, away from the mixing air inlet cover, of the pipe body. By means of the combustor, the combustion sufficiency can be improved, the combustion efficiency is improved, meanwhile, combustion flames can be enlarged, and the heat radiation area is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of burners, and specifically relates to a flame-diffusing type oxygen-enriched burner. Background Art

[0002] A burner is a general term for a device that sprays fuel and air in a certain way for mixed combustion. Burners are classified into industrial burners, combustion machines, domestic burners, and special burners according to types and application fields.

[0003] Existing burners only use air for combustion support, making it difficult to improve the sufficiency of gas combustion. Insufficient gas combustion not only causes waste of fuel, but also increases the emission of carbon monoxide, and at the same time reduces the combustion efficiency. In addition, the gas outlet of existing burners is usually in a straight-through state, with a long and slender flame spraying distance, but the overall radiation area is small, making it difficult to meet the large-area combustion radiation requirements. Therefore, this application improves the existing burner and proposes a flame-diffusing type oxygen-enriched burner. Content of the Utility Model

[0004] In view of the above situation, to overcome the defects of the existing technology, the utility model provides a flame-diffusing type oxygen-enriched burner, effectively solving the problem of poor use effect of existing burners.

[0005] To achieve the above object, the utility model provides the following technical solution: A flame-diffusing type oxygen-enriched burner, including a mixed air intake hood, on one side of the mixed air intake hood, a blower is fixedly arranged, on the other side of the mixed air intake hood, a controller is fixedly arranged, on the top end of the mixed air intake hood, a natural gas inlet pipe and an oxygen inlet pipe are fixedly arranged, and at one end of the mixed air intake hood, a combined combustion nozzle is fixedly arranged. The combined combustion nozzle is composed of a pipe body, a first expansion and contraction mixing hood, a second expansion and contraction mixing hood, and a combustion head. The pipe body is fixedly connected to one end of the mixed air intake hood, both the first expansion and contraction mixing hood and the second expansion and contraction mixing hood are fixedly connected to the inside of the pipe body, and the combustion head is fixedly connected to the end of the pipe body away from the mixed air intake hood.

[0006] Preferably, one end of the natural gas inlet pipe is fixedly provided with a natural gas inlet hose, and a flow intelligent control valve I electrically connected to the controller is arranged on the natural gas inlet pipe.

[0007] Preferably, one end of the oxygen inlet pipe is fixedly provided with an oxygen inlet hose, and a flow intelligent control valve II electrically connected to the controller is arranged on the oxygen inlet pipe.

[0008] Preferably, both the first expansion and contraction mixing hood and the second expansion and contraction mixing hood are composed of a hood body and an adaptive blocking component. A plurality of auxiliary air guiding ports are opened on the side of the hood body, and the adaptive blocking component is connected to the outer side of the hood body and matches with the auxiliary air guiding ports.

[0009] Preferably, the adaptive plugging component is composed of a base, a spring shaft, a plugging plate body and a connecting arm. The base is fixedly connected to the outer side edge of the cover body. The connecting arm is rotationally connected to the base through the spring shaft. The plugging plate body is fixedly connected to one end of the connecting arm and matches the auxiliary air guide port.

[0010] Preferably, a plurality of spiral cyclone air outlets I, a plurality of spiral cyclone air outlets II and a central air outlet are provided at one end of the burner head away from the pipe body. Igniters I are fixedly arranged inside both the spiral cyclone air outlets I and the spiral cyclone air outlets II. An igniter II is fixedly arranged inside the central air outlet. The igniter I is of an inclined installation structure.

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

[0012] (1) During operation, by providing a natural gas inlet pipe, an oxygen inlet pipe, a natural gas inlet hose, a flow intelligent control valve I, an oxygen inlet hose and a flow intelligent control valve II, pure oxygen can be used to assist the combustion of natural gas, thereby improving the combustion sufficiency of natural gas. By providing a telescopic mixing cover I and a telescopic mixing cover II composed of a cover body and an adaptive plugging component, the natural gas, air and oxygen can be pre-mixed evenly, thereby realizing uniform combustion and further improving the combustion efficiency. By providing an adaptive plugging component composed of a base, a spring shaft, a plugging plate body and a connecting arm, the auxiliary air guide port can be adaptively opened and closed according to the jet speed, so that the air flow passability can be ensured under the condition of large-flow gas supply;

[0013] (2) By providing the spiral cyclone air outlets I, the spiral cyclone air outlets II and the igniters I, cyclone air outlet can be realized, thereby forming cyclone combustion, increasing the combustion area, increasing the heat radiation area and improving the adaptability. By providing the central air outlet and the igniter II, direct-through air outlet and combustion can be realized. The combination of the two can further improve the use effect of the burner. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model.

[0015] In the drawings:

[0016] Figure 1 is a schematic structural diagram of the flame diffusion type oxygen-enriched burner of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the natural gas inlet pipe and the oxygen inlet pipe of the present utility model;

[0018] Figure 3Schematic structural diagram of the combined combustion nozzle of the present utility model;

[0019] Figure 4 Schematic structural diagram of the first expansion and contraction mixing hood of the present utility model;

[0020] Figure 5 For the present utility model Figure 4 Partial enlarged view;

[0021] Figure 6 Schematic structural diagram of the end face of the combustion head of the present utility model;

[0022] In the figure: 1, mixing air inlet hood; 2, fan; 3, controller; 4, natural gas inlet pipe; 5, oxygen inlet pipe; 6, combined combustion nozzle; 7, pipe body; 8, first expansion and contraction mixing hood; 9, second expansion and contraction mixing hood; 10, combustion head; 11, natural gas inlet hose; 12, first flow intelligent control valve; 13, oxygen inlet hose; 14, second flow intelligent control valve; 15, hood body; 16, adaptive sealing component; 17, auxiliary air guiding port; 18, base; 19, spring shaft; 20, sealing plate body; 21, connecting arm; 22, first spiral cyclone air outlet; 23, second spiral cyclone air outlet; 24, central air outlet; 25, first igniter; 26, second igniter. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Provided by Figures 1 to 3 The flame-diffusing type oxygen-enriched burner of the present utility model includes a mixing air inlet hood 1. A fan 2 is fixedly arranged on one side of the mixing air inlet hood 1, a controller 3 is fixedly arranged on the other side of the mixing air inlet hood 1, a natural gas inlet pipe 4 and an oxygen inlet pipe 5 are fixedly arranged at the top of the mixing air inlet hood 1, a combined combustion nozzle 6 is fixedly arranged at one end of the mixing air inlet hood 1. The combined combustion nozzle 6 is composed of a pipe body 7, a first expansion and contraction mixing hood 8, a second expansion and contraction mixing hood 9 and a combustion head 10. The pipe body 7 is fixedly connected to one end of the mixing air inlet hood 1, both the first expansion and contraction mixing hood 8 and the second expansion and contraction mixing hood 9 are fixedly connected to the inside of the pipe body 7, and the combustion head 10 is fixedly connected to the end of the pipe body 7 away from the mixing air inlet hood 1;

[0025] During use, air is sent in through the blower 2, natural gas is supplied through the natural gas inlet pipe 4, oxygen is supplied through the oxygen inlet pipe 5, and the natural gas is combusted with the help of oxygen and air, thereby improving the sufficiency of natural gas combustion. The expansion and contraction mixing cover one 8 and the expansion and contraction mixing cover two 9 can achieve uniform mixing of natural gas, air, and oxygen, thereby improving the uniformity and efficiency of combustion;

[0026] Given by Figure 2 One end of the natural gas inlet pipe 4 is fixedly provided with a natural gas inlet hose 11, and a flow intelligent control valve one 12 electrically connected to the controller 3 is arranged on the natural gas inlet pipe 4. One end of the oxygen inlet pipe 5 is fixedly provided with an oxygen inlet hose 13, and a flow intelligent control valve two 14 electrically connected to the controller 3 is arranged on the oxygen inlet pipe 5;

[0027] The flow intelligent control valve one 12 can intelligently control the intake volume of natural gas, and the flow intelligent control valve two 14 can intelligently control the intake volume of oxygen, thereby improving the safety and stability of the burner during use;

[0028] Given by Figures 3 to 5 The expansion and contraction mixing cover one 8 and the expansion and contraction mixing cover two 9 are both composed of a cover body 15 and an adaptive sealing component 16. A plurality of auxiliary air guiding ports 17 are opened on the side of the cover body 15, and the adaptive sealing component 16 is connected to the outer side of the cover body 15 and is matched with the auxiliary air guiding ports 17. The adaptive sealing component 16 is composed of a base 18, a spring shaft 19, a sealing plate body 20, and a connecting arm 21. The base 18 is fixedly connected to the outer side of the cover body 15, the connecting arm 21 is rotationally connected to the base 18 through the spring shaft 19, and the sealing plate body 20 is fixedly connected to one end of the connecting arm 21 and is matched with the auxiliary air guiding ports 17;

[0029] The mixed gas of natural gas, air, and oxygen passes through the expansion and contraction mixing cover one 8, and at this time, a process of convergence and dispersion is completed once, and then enters the inside of the expansion and contraction mixing cover two 9 to complete the second process of convergence and dispersion. Through the convergence and dispersion on both sides, the natural gas, air, and oxygen can be fully and evenly mixed, thereby improving the combustion uniformity. Since the combustion firepower of the burner can be adjusted, the intake volume will also change at this time. When the intake volume increases, the sealing plate body 20 is separated from the auxiliary air guiding port 17, and the connecting arm 21 rotates around the spring shaft 19 to realize auxiliary air intake, ensure the air intake efficiency, and thereby improve the combustion efficiency;

[0030] Given by Figure 3 and Figure 6Given that, at one end of the burner head 10 away from the pipe body 7, a number of spiral cyclone air outlets one 22, a number of spiral cyclone air outlets two 23 and a central air outlet 24 are provided. Inside both the spiral cyclone air outlet one 22 and the spiral cyclone air outlet two 23, an igniter one 25 is fixedly arranged. Inside the central air outlet 24, an igniter two 26 is fixedly arranged. The igniter one 25 is an inclined installation structure;

[0031] The mixed gas is discharged in a cyclone manner through the spiral cyclone air outlet one 22 and the spiral cyclone air outlet two 23, and ignition is achieved through the igniter one 25, so as to increase the combustion area, and further increase the heat radiation area. Another part of the mixed gas is discharged in a direct-through manner through the central air outlet 24, and ignition is achieved through the igniter two 26, which can increase the combustion length. Through the combined action of the two, the use effect of the burner can be further improved.

[0032] During operation, by providing a natural gas inlet pipe, an oxygen inlet pipe, a natural gas inlet hose, a flow intelligent control valve one, an oxygen inlet hose and a flow intelligent control valve two, pure oxygen can be used to assist the combustion of natural gas, thereby improving the combustion sufficiency of natural gas. By providing a variable-diameter mixing hood one and a variable-diameter mixing hood two composed of a cover body and an adaptive plugging component, the natural gas, air and oxygen can be pre-mixed evenly, so as to achieve uniform combustion and further improve the combustion efficiency. By providing an adaptive plugging component composed of a base, a spring shaft, a plugging plate body and a connecting arm, the auxiliary air guide port can be adaptively opened and closed according to the jet velocity, so as to ensure the air flow passability under the condition of large-flow gas supply; by providing the spiral cyclone air outlet one, the spiral cyclone air outlet two and the igniter one, cyclone air discharge can be realized, thereby forming cyclone combustion, increasing the combustion area, increasing the heat radiation area and improving the adaptability. By providing the central air outlet and the igniter two, direct-through air discharge and combustion can be realized. Through the combination of the two, the use effect of the burner can be further improved.

Claims

1. A flame diffusion type oxygen-enriched burner, comprising a mixing air intake hood (1), characterized in that: A fan (2) is fixedly arranged on one side of the mixing air intake hood (1), a controller (3) is fixedly arranged on the other side of the mixing air intake hood (1), a natural gas intake pipe (4) and an oxygen intake pipe (5) are fixedly arranged on the top of the mixing air intake hood (1), and a combined combustion nozzle (6) is fixedly arranged on one end of the mixing air intake hood (1), the combined combustion nozzle (6) is composed of a pipe body (7), an expanding and contracting mixing hood 1 (8), an expanding and contracting mixing hood 2 (9) and a combustion head (10), the pipe body (7) is fixedly connected to one end of the mixing air intake hood (1), the expanding and contracting mixing hood 1 (8) and the expanding and contracting mixing hood 2 (9) are both fixedly connected to the inside of the pipe body (7), and the combustion head (10) is fixedly connected to one end of the pipe body (7) away from the mixing air intake hood (1).

2. The flame diffusion type oxygen-enriched burner according to claim 1, characterized in that: A natural gas intake hose (11) is fixedly provided at one end of the natural gas intake pipe (4), and a flow intelligent control valve (12) electrically connected to the controller (3) is provided on the natural gas intake pipe (4).

3. The flame diffusion type oxygen-enriched burner according to claim 1, characterized in that: An oxygen intake hose (13) is fixedly arranged at one end of the oxygen intake pipe (5), and a second flow intelligent control valve (14) electrically connected to the controller (3) is arranged on the oxygen intake pipe (5).

4. The flame diffusion type oxygen-enriched burner according to claim 1, characterized in that: The expandable and contractible mixing cover 1 (8) and the expandable and contractible mixing cover 2 (9) are both composed of a cover body (15) and an adaptive blocking component (16); a plurality of auxiliary air guide ports (17) are provided on the side of the cover body (15); and the adaptive blocking component (16) is connected to the outer side of the cover body (15) and matches the auxiliary air guide ports (17).

5. The flame diffusion type oxygen-enriched burner according to claim 4, characterized in that: The adaptive blocking component (16) is composed of a base (18), a spring shaft (19), a blocking plate body (20) and a connecting arm (21); the base (18) is fixedly connected to the outer side of the cover body (15); the connecting arm (21) is rotatably connected to the base (18) via the spring shaft (19); the blocking plate body (20) is fixedly connected to one end of the connecting arm (21) and matches the auxiliary air guide port (17).

6. The flame diffusion type oxygen-enriched burner according to claim 1, characterized in that: The burner head (10) is provided with a plurality of spiral cyclone type air outlets (22), a plurality of spiral cyclone type air outlets (23) and a central air outlet (24) at one end away from the tube body (7); an igniter (25) is fixedly arranged inside the spiral cyclone type air outlet (22) and the spiral cyclone type air outlet (23); an igniter (26) is fixedly arranged inside the central air outlet (24); and the igniter (25) is an inclined installation structure.

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