High-temperature burner based on plasma principle

Abstract

The utility model relates to the technical field of combustors, and discloses a high-temperature combustor based on the plasma principle, which comprises a shell, a cooling water outlet pipe is fixedly assembled at the top of the shell, an insulator is fixedly assembled on the inner wall of the shell, and an insulating mounting seat is fixedly assembled at the bottom of the shell. A drain pipe is fixedly assembled on the outer edge of the shell, a cooling water inlet pipe is fixedly assembled on the outer edge of the shell, a first cooling water cavity is formed in the inner wall of the shell, a red copper electrode is fixedly assembled on the inner wall of the shell, and the inner wall of the red copper electrode is fixedly sleeved with inlaid tungsten. The service power is increased by increasing the sizes of the cathode and the anode, so that the auxiliary equipment is rapid in temperature rising and cooling, extremely high in combustion temperature, sufficient in combustion and extremely high in purification efficiency, and the requirements of sufficient combustion and extremely high purification efficiency are met by increasing the sizes of the cathode and the anode and increasing the service power through the service power reaching 15kw.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a high-temperature burner based on the plasma principle. Background Art

[0002] A high-temperature burner is a pulverized coal burner equipped with a plasma generator that uses plasma for ignition and stable combustion. It is used in the combustion treatment of process exhaust gases in the photovoltaic and semiconductor industries. Because the instantaneous temperature of plasma can reach thousands of degrees, it has the characteristics of rapid heating and cooling, extremely high combustion temperature, full combustion, and extremely high purification efficiency.

[0003] Traditional high-temperature burners are small in size and low in power, with an actual power of only 6kw, resulting in incomplete combustion of exhaust gas, affecting the equipment's processing efficiency. In addition, the service life of the plasma anode and cathode is only one month, resulting in a high equipment maintenance rate. Increasing the combustion power will result in defects such as high temperature of the plasma burner and mismatch of nitrogen usage, which in turn affects the stable use of the device. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a high-temperature burner based on the plasma principle to solve the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a high-temperature burner based on the plasma principle, comprising a shell, the top of the shell is fixedly equipped with a cooling water outlet pipe, the inner wall of the shell is fixedly equipped with an insulator, the bottom of the shell is fixedly equipped with an insulating mounting seat, the outer edge of the shell is fixedly equipped with a drain pipe, the outer edge of the shell is fixedly equipped with a cooling water inlet pipe, the inner wall of the shell is provided with a cooling water cavity, the inner wall of the shell is fixedly equipped with a copper electrode, the inner wall of the copper electrode is fixedly sleeved with inlaid tungsten, the inner wall of the shell near the top is fixedly sleeved with a cathode, and the inner wall of the cathode is fixedly sleeved with an alloy tungsten electrode.

[0006] As an optimal technical solution of the present invention, a cooling water cavity 2 is opened on the inner wall of the outer shell near the top, and a connecting pipe is fixedly connected to the inner wall of the cooling water cavity 2, and the end of the connecting pipe away from the cooling water cavity 2 is fixedly connected to the inner wall of the drain pipe, and the inner cavity of the cooling water cavity 1 is connected to the inner cavity of the cooling water cavity 2 through the inner wall of the connecting pipe.

[0007] As a preferred technical solution of the present invention, a nitrogen hole is opened on the outer edge of the shell, and the inner wall of the nitrogen hole is connected to the inner wall of the alloy tungsten electrode.

[0008] As an optimal technical solution of the present invention, a plasma arc outlet tube is fixedly installed on the bottom of the insulating mounting seat, and the outer edge of the plasma arc outlet tube is fixedly sleeved with the inner wall of the copper electrode, and an inert gas purge port is opened on the inner wall of the plasma arc outlet tube.

[0009] As a preferred technical solution of the present invention, a notch is provided on the inner wall of the insulator, and the inner wall of the notch is filled with an inert gas.

[0010] As a preferred technical solution of the present invention, there are a plurality of nitrogen holes, and the plurality of nitrogen holes are evenly distributed on the outer edge of the shell.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This high-temperature burner based on the plasma principle increases the power by increasing the size of the anode and cathode, so that the auxiliary equipment can heat up and cool down quickly, the combustion temperature is extremely high, the combustion is complete, and the purification efficiency is extremely high.

[0013] 2. This high-temperature burner based on the plasma principle has a power of 15kw and increases the size of the anode and cathode to increase the power, meeting the requirements of full combustion and extremely high purification efficiency.

[0014] 3. The high-temperature burner based on the plasma principle increases the cooling water flow and nitrogen flow, and evenly distributes the nitrogen channel to achieve the purpose of uniform distribution. The high-temperature resistant tungsten ring embedded in the anode has a long service life of up to 8 months. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;

[0018] Figure 4 It is a schematic diagram of the front cross-section structure of the utility model.

[0019] In the figure: 1. Shell; 2. Cooling water outlet pipe; 3. Insulator; 4. Insulation mounting base; 5. Drain pipe; 6. Cooling water inlet pipe; 7. Cooling water cavity 1; 8. Inlaid tungsten; 9. Copper electrode; 10. Cathode; 11. Alloy tungsten electrode; 12. Cooling water cavity 2; 13. Connecting pipe; 14. Nitrogen hole; 15. Plasma arc outlet pipe; 16. Inert gas purge port. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1-4 , a high-temperature burner based on the plasma principle, including a shell 1, a cooling water outlet pipe 2 is fixedly installed on the top of the shell 1, an insulator 3 is fixedly installed on the inner wall of the shell 1, an insulating mounting seat 4 is fixedly installed on the bottom of the shell 1, a drain pipe 5 is fixedly installed on the outer edge of the shell 1, a cooling water inlet pipe 6 is fixedly installed on the outer edge of the shell 1, a cooling water cavity 7 is opened on the inner wall of the shell 1, a copper electrode 9 is fixedly installed on the inner wall of the copper electrode 9, an inlaid tungsten 8 is fixedly sleeved on the inner wall of the copper electrode 9, a cathode 10 is fixedly sleeved on the inner wall of the cathode 10 near the top, and an alloy tungsten electrode 11 is fixedly sleeved on the inner wall of the cathode 10. The cooling water inlet pipe 6 is used in conjunction with the cooling water cavity 7, and the cooling water is assisted by the cooling water inlet pipe 6 to supply cooling water to the interior of the equipment until it reaches the inner cavity of the cooling water cavity 7. The copper electrode 9 is used in conjunction with the inlaid tungsten 8. The copper electrode 9 is an anode, and the inlaid tungsten 8 is a high-temperature resistant tungsten ring, and the inlaid tungsten 8 is used to extend the life of the anode.

[0022] In a preferred embodiment, a cooling water cavity 2 12 is opened on the inner wall of the outer shell 1 near the top, and a connecting pipe 13 is fixedly connected to the inner wall of the cooling water cavity 2 12, and the end of the connecting pipe 13 away from the cooling water cavity 2 12 is fixedly connected to the inner wall of the drain pipe 5. The inner cavity of the cooling water cavity 17 is connected with the inner cavity of the cooling water cavity 2 12 through the inner wall of the connecting pipe 13. Through the coordinated use of the cooling water cavity 2 12 and the connecting pipe 13, the drain pipe 5 is used to assist the water inside the cooling water cavity 17 to be supplied to the inner cavity of the cooling water cavity 2 12 through the drain pipe 5.

[0023] In a preferred embodiment, a nitrogen hole 14 is opened on the outer edge of the shell 1, and the inner wall of the nitrogen hole 14 is connected to the inner wall of the alloy tungsten electrode 11. By using the nitrogen hole 14 and the alloy tungsten electrode 11 in conjunction with each other, the nitrogen hole 14 is used to assist the external nitrogen in transporting nitrogen to the inner cavity of the shell 1.

[0024] In a preferred embodiment, a plasma arc outlet tube 15 is fixedly mounted on the bottom of the insulating mounting seat 4, and the outer edge of the plasma arc outlet tube 15 is fixedly socketed with the inner wall of the copper electrode 9. An inert gas purge port 16 is provided on the inner wall of the plasma arc outlet tube 15. By installing the plasma arc outlet tube 15, the plasma arc outlet tube 15 is utilized to assist the stable combustion and discharge of nitrogen inside the outer shell 1. By installing the inert gas purge port 16, nitrogen is utilized to remove unnecessary gases and other impurities.

[0025] In a preferred embodiment, a notch is provided on the inner wall of the insulator 3 , and the inner wall of the notch is filled with an inert gas. The notch and the inert gas are used in conjunction with each other to transport nitrogen into the insulator 3 .

[0026] In a preferred embodiment, there are several nitrogen holes 14, and the several nitrogen holes 14 are evenly distributed on the outer edge of the shell 1. By opening several nitrogen holes 14, the nitrogen flow rate is increased, and the nitrogen channel is evenly distributed to achieve the purpose of uniform distribution, thereby improving the service life.

[0027] Working principle: when the device is in use, the anode and cathode lines of the plasma power supply are respectively connected to the anode and cathode of the plasma burner. When turned on, cooling water and nitrogen are first introduced into the plasma burner. The cooling water inlet pipe 6 supplies cooling water to the inner cavity of the cooling water cavity 1 7, and the cooling water cavity 1 7 is used to transport cooling water to the inner cavity of the cooling water cavity 2 12 through the drain pipe 5 and the connecting pipe 13, and the cooling water outlet pipe 2 is used to assist the discharge of cooling water, and the nitrogen hole 14 is used to transport nitrogen. Then, the plasma power supply is started, and the plasma flame can be stimulated and discharged through the plasma arc outlet pipe 15.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature burner based on the plasma principle, comprising a housing (1), characterized in that: The top of the shell (1) is fixedly equipped with a cooling water outlet pipe (2), the inner wall of the shell (1) is fixedly equipped with an insulator (3), the bottom of the shell (1) is fixedly equipped with an insulating mounting seat (4), the outer edge of the shell (1) is fixedly equipped with a drain pipe (5), the outer edge of the shell (1) is fixedly equipped with a cooling water inlet pipe (6), the inner wall of the shell (1) is provided with a cooling water cavity (7), the inner wall of the shell (1) is fixedly equipped with a copper electrode (9), the inner wall of the copper electrode (9) is fixedly sleeved with an inlaid tungsten (8), the inner wall of the shell (1) near the top is fixedly sleeved with a cathode (10), and the inner wall of the cathode (10) is fixedly sleeved with an alloy tungsten electrode (11).

2. The high-temperature burner based on the plasma principle according to claim 1, characterized in that: The inner wall of the shell (1) near the top is provided with a second cooling water cavity (12), the inner wall of the second cooling water cavity (12) is fixedly sleeved with a connecting pipe (13), and the end of the connecting pipe (13) away from the second cooling water cavity (12) is fixedly sleeved with the inner wall of the drain pipe (5), and the inner cavity of the first cooling water cavity (7) is connected to the inner cavity of the second cooling water cavity (12) through the inner wall of the connecting pipe (13).

3. The high-temperature burner based on the plasma principle according to claim 1, characterized in that: A nitrogen hole (14) is provided on the outer edge of the housing (1), and the inner wall of the nitrogen hole (14) is connected to the inner wall of the alloy tungsten electrode (11).

4. The high-temperature burner based on the plasma principle according to claim 1, characterized in that: A plasma arc outlet tube (15) is fixedly mounted on the bottom of the insulating mounting seat (4), and the outer edge of the plasma arc outlet tube (15) is fixedly sleeved with the inner wall of the copper electrode (9). An inert gas purge port (16) is provided on the inner wall of the plasma arc outlet tube (15).

5. The high-temperature burner based on the plasma principle according to claim 1, characterized in that: The inner wall of the insulator (3) is provided with a notch, and the inner wall of the notch is filled with an inert gas.

6. The high-temperature burner based on the plasma principle according to claim 3, characterized in that: The number of the nitrogen holes (14) is several, and the several nitrogen holes (14) are evenly distributed on the outer edge of the shell (1).

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