Atomizer for plasma thermal spraying equipment

Abstract

The utility model provides an atomizer for plasma thermal spraying equipment, which comprises a spray gun and a compressed gas assembly, the outer surface of the spray gun is fixedly communicated with a connecting pipe, the inner wall of the connecting pipe is provided with an atomizing pipe, the inner wall of the atomizing pipe is fixedly provided with a first atomizing net and a second atomizing net, and the compressed gas assembly comprises a compressed gas pipe and a throat neck pipe. The end, away from the throat neck pipe, of the compressed gas pipe is fixedly connected with an air inlet pipe, two limiting assemblies are arranged on the outer surface of the atomization pipe, and each limiting assembly comprises a first fixing block and a second fixing block. According to the atomizer for the plasma thermal spraying equipment, an atomizing pipe can be detached to replace a first atomizing net and a second atomizing net, convenience and rapidness are achieved, the situation that the atomizing effect is reduced due to the fact that the first atomizing net and the second atomizing net are damaged is avoided, and the atomizing effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plasma thermal spraying, in particular to an atomizer for plasma thermal spraying equipment. Background Art

[0002] Thermal spraying refers to a series of processes in which fine and dispersed metallic or non-metallic coating materials are deposited in a molten or semi-molten state onto a prepared substrate surface to form a spray deposit. The coating material can be in powder, ribbon, filament or rod form. The thermal spray gun is provided with the necessary heat by fuel gas, electric arc or plasma arc, which heats the thermal spray material to a plastic or molten state, and then is accelerated by compressed air to cause the constrained particle beam to impact the substrate surface. The particles that impact the surface are deformed by the stamping, forming laminated flakes that adhere to the prepared substrate surface, then cool and accumulate continuously, and finally form a layered coating. Depending on the coating material, the coating can achieve functions such as high temperature corrosion resistance, wear resistance, heat insulation, and electromagnetic wave resistance.

[0003] According to the patent publication number CN216936554U, a liquid feeding atomizer for plasma thermal spray etching equipment is disclosed, including a spray gun and an atomizing pipe, the atomizing pipe includes a throat section, the two ends of the throat section are connected to a compression section and a diffusion section, the diffusion section is welded to a connecting section, the connecting section is sleeved on the spray gun, the compression section is connected to an air inlet pipe, the liquid feeding pipe is sleeved on the throat section, a fixed atomizing net is installed in the diffusion section, a movable atomizing net is clamped on the inner wall of the connecting section, and an adjusting mechanism is installed between the movable atomizing net and the outer wall of the connecting section.

[0004] By adopting the above scheme, the size of the atomized particles after the final atomization can be adjusted. Since the compressed gas has a large impact force, the atomizing net will be damaged during long-term use. However, the atomizing net in the above scheme is arranged in the atomizing tube. After the atomizing net is damaged, the atomizing net cannot be replaced, resulting in a reduction in the atomization effect, which has certain shortcomings. For this reason, we provide an atomizer for plasma thermal spraying equipment to solve the above problems. Utility Model Content

[0005] The utility model provides an atomizer for plasma thermal spraying equipment to solve the technical problems existing in the above-mentioned background technology.

[0006] The utility model discloses an atomizer for plasma thermal spraying equipment, and its purpose and effect are achieved by the following specific technical means: an atomizer for plasma thermal spraying equipment, comprising a spray gun and a compressed gas component, the outer surface of the spray gun is fixedly connected with a connecting pipe, the inner wall of the connecting pipe is provided with an atomizing pipe, the inner wall of the atomizing pipe is fixedly installed with a first atomizing net and a second atomizing net, the compressed gas component comprises a compressed gas pipe and a throat neck pipe, the end of the compressed gas pipe away from the throat neck pipe is fixedly connected with an air inlet pipe, the outer surface of the throat neck pipe is fixedly connected with a liquid inlet pipe, the end of the throat neck pipe away from the compressed gas pipe is fixedly connected with a diffusion gas pipe, the end of the diffusion gas pipe away from the throat neck pipe is fixedly connected to the outer surface of the connecting pipe, the outer surface of the atomizing pipe is provided with two limit assemblies, and the limit assemblies comprise a first fixed block and a second fixed block.

[0007] The bottom surface of the first fixing block is fixedly connected to the outer surface of the atomizing tube, the bottom surface of the second fixing block is fixedly connected to the outer surface of the connecting tube, and a connecting block is fixedly connected to a side surface of the first fixing block close to the second fixing block.

[0008] The outer surface of the connecting block is slidably connected to the inner wall of the second fixing block, the inner wall of the connecting block is provided with a limiting groove, and the inner wall of the limiting groove is slidably connected to the limiting block.

[0009] A moving block is fixedly connected to a side of the limiting block away from the limiting groove. The moving block is slidably connected to the inner wall of the second fixed block. A moving rod is fixedly connected to a side of the moving block away from the limiting block.

[0010] One end of the moving rod away from the moving block is slidably connected to the outer surface of the second fixed block, and the other end of the moving rod away from the moving block is fixedly connected to a handle. A spring is sleeved on the outer surface of the moving rod, and both ends of the spring are respectively fixedly connected to the outer surface of the moving block and the inner wall of the second fixed block.

[0011] The inner wall of the liquid inlet pipe is provided with a buffer cotton, and the bottom surface of the buffer cotton is provided with a filter net. Beneficial Effects

[0012] The utility model can quickly release the limit of the atomizer pipe by setting the limit component, and the atomizer pipe can be removed to replace the first atomizer net and the second atomizer net, which is convenient and quick, avoids the first atomizer net and the second atomizer net from being damaged and causing the atomization effect to be reduced, and greatly improves the atomization effect.

[0013] The utility model cooperates with the buffer cotton and the filter screen so that the liquid can slowly drip down after being absorbed by the buffer cotton and is divided by the filter screen into droplets that drip into the throat neck tube, which is convenient for the impact of compressed gas to liquefy, and the liquefaction is more complete than that of liquid flowing in in strands. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a cross-sectional view of the internal structure of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the limiting component of the utility model.

[0017] Figure 4 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0018] Figure 1-4 In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0019] 1. Spray gun; 2. Connecting pipe; 3. Atomizing pipe; 4. Compressed gas assembly; 401. Compressed gas pipe; 402. Throat pipe; 403. Diffusion gas pipe; 5. Inlet pipe; 6. Limiting assembly; 601. First fixed block; 602. Second fixed block; 603. Connecting block; 604. Limiting groove; 605. Limiting block; 606. Moving block; 607. Moving rod; 608. Spring; 609. Handle; 7. Liquid inlet pipe; 8. First atomizing net; 9. Second atomizing net; 10. Buffer cotton; 11. Filter net. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] As attached Figure 1 To Attachment Figure 4 As shown: an atomizer for plasma thermal spraying equipment, including a spray gun 1 and a compressed gas component 4, the outer surface of the spray gun 1 is fixedly connected with a connecting pipe 2, and the atomized liquid can be transmitted to the inside of the spray gun 1 through the connecting pipe 2, so that the spray gun 1 can spray the atomized liquid out conveniently, the inner wall of the connecting pipe 2 is provided with an atomizing pipe 3, and a sealing gasket is provided between the connecting pipe 2 and the atomizing pipe 3 to prevent gas from overflowing from the connection, and the inner wall of the atomizing pipe 3 is fixedly installed with a first atomizing net 8 and a second atomizing net 9, and the mesh gaps of the first atomizing net 8 and the second atomizing net 9 are different. The liquid can be atomized by the first atomizing net 8 and the second atomizing net 9, which is convenient for subsequent spraying.

[0022] The compressed gas component 4 includes a compressed gas pipe 401 and a throat neck tube 402. The end of the compressed gas pipe 401 away from the throat neck tube 402 is fixedly connected to the air inlet pipe 5. The outer surface of the throat neck tube 402 of the air inlet pipe 5 is fixedly connected to the liquid inlet pipe 7. Liquid can be delivered into the interior of the throat neck tube 402 through the liquid inlet pipe 7 to facilitate its atomization. The end of the throat neck tube 402 away from the compressed gas pipe 401 is fixedly connected to the diffusion gas pipe 403. The end of the diffusion gas pipe 403 away from the throat neck tube 402 is fixedly connected to the outer surface of the connecting pipe 2. The compressed gas pipe 401 and the throat neck tube 402 can be used to compress the gas, so that the flow rate of the gas becomes faster, which is convenient for more complete atomization of the liquid later.

[0023] Two limiting components 6 are provided on the outer surface of the atomizing tube 3, and the limiting component 6 includes a first fixed block 601 and a second fixed block 602. The bottom surface of the first fixed block 601 is fixedly connected to the outer surface of the atomizing tube 3, and the bottom surface of the second fixed block 602 is fixedly connected to the outer surface of the connecting tube 2. A connecting block 603 is fixedly connected to a side of the first fixed block 601 close to the second fixed block 602. The outer surface of the connecting block 603 is slidably connected to the inner wall of the second fixed block 602. The inner wall of the second fixed block 602 and the outer surface of the connecting block 603 should be set to be relatively smooth so that the connecting block 603 can slide on the inner wall of the second fixed block 602.

[0024] A limiting groove 604 is provided on the inner wall of the connecting block 603, and the inner wall of the limiting groove 604 is slidably connected to the limiting block 605. A moving block 606 is fixedly connected to the side of the limiting block 605 away from the limiting groove 604. The moving block 606 is slidably connected to the inner wall of the second fixed block 602. A moving rod 607 is fixedly connected to the side of the moving block 606 away from the limiting block 605. One end of the moving rod 607 away from the moving block 606 is slidably connected to the outer surface of the second fixed block 602. A through hole compatible with the moving rod 607 is provided on the outer surface of the second fixed block 602, so that the moving rod 607 can slide in the through hole, which is convenient for the subsequent release of the limit of the connecting block 603.

[0025] The end of the moving rod 607 away from the moving block 606 is fixedly connected with a pull handle 609, and the outer surface of the moving rod 607 is sleeved with a spring 608. The two ends of the spring 608 are respectively fixedly connected to the outer surface of the moving block 606 and the inner wall of the second fixed block 602. When the pull handle 609 moves, it will drive the moving rod 607 to move in the same direction. When the moving rod 607 moves, it will drive the limit block 605 and the moving block 606 to move, so that the limit block 605 slides out from the inside of the limit groove 604, thereby releasing the limit on the connecting block 603. Then the atomizer tube 3 can be taken out from the inside of the connecting tube 2, which is convenient for replacing the first atomizer net 8 and the second atomizer net 9. It is convenient and quick to avoid damage to the first atomizer net 8 and the second atomizer net 9, which will reduce the atomization effect.

[0026] The inner wall of the liquid inlet pipe 7 is provided with a buffer cotton 10, and the bottom surface of the buffer cotton 10 is provided with a filter screen 11. The buffer cotton 10 is a water-absorbing sponge. After absorbing the liquid, the liquid slowly drips down and is divided by the filter screen 11 to form drops and drip into the throat tube 402, which is convenient for the impact of compressed gas to liquefy, and the liquefaction is more complete than the liquid flowing in in strands.

[0027] Working principle: When the atomizer is used for a long time and the first atomization net 8 and the second atomization net 9 need to be replaced, pull the handle 609 to move outward. When the handle 609 moves, it will drive the moving rod 607 to move in the same direction. When the moving rod 607 moves, it will drive the limit block 605 and the moving block 606 to move, so that the limit block 605 slides out from the inside of the limit groove 604, thereby releasing the limit on the connecting block 603, and then the atomization tube 3 can be taken out from the inside of the connecting tube 2, so that the first atomization net 8 and the second atomization net 9 can be replaced conveniently and quickly, avoiding damage to the first atomization net 8 and the second atomization net 9 and reducing the atomization effect.

Claims

1. An atomizer for plasma thermal spraying equipment, comprising a spray gun (1) and a compressed gas component (4), characterized in that: The outer surface of the spray gun (1) is fixedly connected to a connecting pipe (2), the inner wall of the connecting pipe (2) is provided with an atomizing pipe (3), the inner wall of the atomizing pipe (3) is fixedly mounted with a first atomizing net (8) and a second atomizing net (9), the compressed gas component (4) comprises a compressed gas pipe (401) and a throat pipe (402), one end of the compressed gas pipe (401) away from the throat pipe (402) is fixedly connected to an air inlet pipe (5), the outer surface of the throat pipe (402) is fixedly connected to a liquid inlet pipe (7), one end of the throat pipe (402) away from the compressed gas pipe (401) is fixedly connected to a diffusion gas pipe (403), one end of the diffusion gas pipe (403) away from the throat pipe (402) is fixedly connected to the outer surface of the connecting pipe (2), and the outer surface of the atomizing pipe (3) is provided with two limit assemblies (6), the limit assemblies (6) comprising a first fixing block (601) and a second fixing block (602).

2. The atomizer for plasma thermal spraying equipment according to claim 1, characterized in that: The bottom surface of the first fixing block (601) is fixedly connected to the outer surface of the atomizing tube (3), the bottom surface of the second fixing block (602) is fixedly connected to the outer surface of the connecting tube (2), and a connecting block (603) is fixedly connected to a side surface of the first fixing block (601) close to the second fixing block (602).

3. The atomizer for plasma thermal spraying equipment according to claim 2, characterized in that: The outer surface of the connecting block (603) is slidably connected to the inner wall of the second fixing block (602); a limiting groove (604) is provided on the inner wall of the connecting block (603); and the inner wall of the limiting groove (604) is slidably connected to the limiting block (605).

4. The atomizer for plasma thermal spraying equipment according to claim 3, characterized in that: A moving block (606) is fixedly connected to a side of the limiting block (605) away from the limiting groove (604); the moving block (606) is slidably connected to the inner wall of the second fixed block (602); and a moving rod (607) is fixedly connected to a side of the moving block (606) away from the limiting block (605).

5. The atomizer for plasma thermal spraying equipment according to claim 4, characterized in that: One end of the moving rod (607) away from the moving block (606) is slidably connected to the outer surface of the second fixed block (602), and one end of the moving rod (607) away from the moving block (606) is fixedly connected to a handle (609). A spring (608) is sleeved on the outer surface of the moving rod (607), and two ends of the spring (608) are respectively fixedly connected to the outer surface of the moving block (606) and the inner wall of the second fixed block (602).

6. The atomizer for plasma thermal spraying equipment according to claim 1, characterized in that: The inner wall of the liquid inlet pipe (7) is provided with a cushioning cotton (10), and the bottom surface of the cushioning cotton (10) is provided with a filter screen (11).

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