Precious metal pipeline flexible sealing device for thermal spraying

Abstract

The utility model discloses a noble metal pipeline flexible sealing device for thermal spraying, which comprises a plug main body, a plurality of groups of mounting slots are arranged on the periphery of the plug main body, flexible sealing air bags are arranged in the mounting slots, and an inflating and deflating component communicated with the flexible sealing air bags is arranged in the plug main body. A sealing plate is arranged at one end of the plug body. The precious metal pipeline flexible sealing device for thermal spraying has the advantages of being high in use flexibility, good in convenience, good in sealing effect and capable of being repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal spraying equipment, and particularly relates to a flexible sealing device for a noble metal pipeline used in thermal spraying. Background Art

[0002] In high-purity glass equipment, the expensive rhodium alloy pipeline will cause losses due to high temperature. Therefore, a protective coating needs to be thermally sprayed on the outer surface of the rhodium alloy pipeline. However, a large amount of dust will be generated during thermal spraying, which is easy to enter the rhodium alloy pipeline and is very difficult to clean up. This will affect the quality of glass products and even cause the entire rhodium alloy pipeline to be scrapped and remade, resulting in great economic losses.

[0003] Currently, when thermal spraying, some simple and disposable methods are used to seal the rhodium alloy pipeline. Since the wall thickness of the rhodium alloy pipeline is very thin and the rigidity is insufficient, and the rhodium alloy pipeline will also have a certain deformation due to high temperature during thermal spraying, general sealing methods cannot effectively seal the rhodium alloy pipeline, and there will still be a situation where dust enters the pipeline. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a flexible sealing device for a noble metal pipeline used in thermal spraying, which has high flexibility in use, good convenience, good sealing effect and can be reused.

[0005] To solve the above technical problem, the utility model adopts the following technical solutions:

[0006] A flexible sealing device for a noble metal pipeline used in thermal spraying, including a plug main body. A plurality of groups of installation slots are provided on the outer periphery of the plug main body. A flexible sealing airbag is arranged in the installation slots. An air charging and discharging assembly communicated with the flexible sealing airbag is arranged in the plug main body. A sealing plate is arranged at one end of the plug main body.

[0007] As a further improvement of the above technical solution:

[0008] A handle is arranged at one end of the plug main body far away from the sealing plate.

[0009] A protective sleeve is arranged at one end of the plug main body far away from the sealing plate, and the air charging and discharging assembly is located in the protective sleeve.

[0010] An air nozzle is arranged on the flexible sealing airbag. A through hole communicated with the installation slot is arranged on the plug main body. The air nozzle passes through the through hole and is communicated and connected with the air charging and discharging assembly.

[0011] The air charging and discharging assembly includes a stop valve for controlling the on-off of the air path.

[0012] The sealing plate is detachably connected to the plug body through a first fastener, the handle is detachably connected to the plug body through a second fastener, and the protective sleeve is detachably connected to the plug body through a third fastener.

[0013] The number of the installation slots and the flexible sealing air bags is set to two groups.

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] The flexible sealing device for a precious metal pipeline for thermal spraying of the present utility model includes a plug body and a flexible sealing air bag. The plug body is placed into the precious metal pipeline, and the flexible sealing air bag is inflated and expanded for pressure maintaining through an air charging and discharging assembly, so that the flexible sealing air bag can be attached and sealed to the inner wall of the precious metal pipeline. When thermal spraying is carried out, even if the precious metal pipeline is deformed, the flexible sealing air bag can automatically compensate for the deformation, effectively solving the problems of insufficient rigidity and difficult sealing during the thermal spraying of the precious metal pipeline. It can be reused and has the advantages of high use flexibility, good convenience and good sealing effect. Description of the Drawings

[0016] Figure 1 It is a schematic half-sectional structure view of the flexible sealing device for a precious metal pipeline.

[0017] Figure 2 It is a schematic structural view of the flexible sealing device for a precious metal pipeline at an axial angle.

[0018] Figure 3 It is a schematic structural view of the plug body.

[0019] Legend Explanation:

[0020] 1. Plug body; 101. Installation slot; 102. Through hole; 2. Flexible sealing air bag; 201. Air nozzle; 3. Air charging and discharging assembly; 301. Stop valve; 4. Sealing plate; 5. Handle; 6. Protective sleeve; 7. First fastener; 8. Second fastener; 9. Third fastener. Detailed Embodiment

[0021] The following further elaborates on the present utility model in detail with reference to the drawings and specific embodiments.

[0022] As Figures 1 to 3As shown in the figure, the flexible sealing device for noble metal pipelines used in thermal spraying in this embodiment includes a plug main body 1. A plurality of groups of installation slots 101 are provided on the outer periphery of the plug main body 1. A flexible sealing airbag 2 is arranged in the installation slots 101. An air charging and discharging assembly 3 communicated with the flexible sealing airbag 2 is arranged in the plug main body 1. A sealing plate 4 is arranged at one end of the plug main body 1. The flexible sealing device for noble metal pipelines used in thermal spraying includes a plug main body 1 and a flexible sealing airbag 2. The plug main body 1 is placed into the noble metal pipeline. The flexible sealing airbag 2 is inflated and pressurized through the air charging and discharging assembly 3, so that the flexible sealing airbag 2 can be attached and sealed to the inner wall of the noble metal pipeline. During thermal spraying, even if the noble metal pipeline deforms, the flexible sealing airbag 2 can automatically compensate for the deformation, effectively solving the problems of insufficient rigidity and difficult sealing during thermal spraying of noble metal pipelines. It can be reused, and has the advantages of high flexibility in use, good convenience, and good sealing effect.

[0023] Preferably, a handle 5 is arranged at one end of the plug main body 1 away from the sealing plate 4, which is convenient for the staff to grasp the handle 5 by hand to install the flexible sealing device for noble metal pipelines, and has good use convenience.

[0024] Preferably, a protective sleeve 6 is arranged at one end of the plug main body 1 away from the sealing plate 4. The air charging and discharging assembly 3 is located in the protective sleeve 6, which can protect the air charging and discharging assembly 3 during thermal spraying and is beneficial to extending the service life of the air charging and discharging assembly 3.

[0025] Preferably, an air nozzle 201 is arranged on the flexible sealing airbag 2. A through hole 102 communicated with the installation slot 101 is arranged on the plug main body 1. The air nozzle 201 passes through the through hole 102 and is communicated and connected with the air charging and discharging assembly 3, and the assembly is convenient and fast.

[0026] Preferably, the air charging and discharging assembly 3 includes a stop valve 301 for controlling the on-off of the air path. In this embodiment, the stop valve 301 is preferably a finger valve, which can realize the control function of manually adjusting the valve. The staff can inflate and pressurize the flexible sealing airbag 2 through the finger valve, so as to seal the inner wall of the noble metal pipeline, and has the advantage of good flexibility in use.

[0027] Preferably, the sealing plate 4 is detachably connected to the plug main body 1 through the first fastener 7, the handle 5 is detachably connected to the plug main body 1 through the second fastener 8, and the protective sleeve 6 is detachably connected to the plug main body 1 through the third fastener 9. In this embodiment, the sealing plate 4, the handle 5 and the protective sleeve 6 are separate components and are detachably connected to the plug main body 1 by screws. When any one of the components is damaged, it can be disassembled and replaced without replacing the whole precious metal pipeline flexible sealing device, which can effectively reduce the maintenance cost, and the disassembly and assembly are convenient and fast, and the maintenance efficiency is high; in other embodiments, the sealing plate 4, the handle 5 and the protective sleeve 6 can also be integrally formed on the plug main body 1, which is not limited to this embodiment.

[0028] In this embodiment, the number of the installation slots 101 and the flexible sealing air bags 2 is set to two groups; in other embodiments, the number of the installation slots 101 and the flexible sealing air bags 2 can also be set to one group or more than two groups, which is not limited to this embodiment.

[0029] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art of this technology, the improvements and changes obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A flexible sealing device for noble metal pipelines in thermal spraying, characterized in that, It includes a plug main body (1). A plurality of groups of installation slots (101) are formed on the outer periphery of the plug main body (1). A flexible sealing airbag (2) is arranged in the installation slots (101). An air charging and discharging assembly (3) communicated with the flexible sealing airbag (2) is arranged in the plug main body (1). A sealing plate (4) is arranged at one end of the plug main body (1).

2. The flexible sealing device for a noble metal pipeline used in thermal spraying according to claim 1, wherein, A handle (5) is arranged at the end of the plug main body (1) far away from the sealing plate (4).

3. The flexible sealing device for a noble metal pipeline used in thermal spraying according to claim 2, characterized in that, A protective sleeve (6) is arranged at the end of the plug main body (1) far away from the sealing plate (4). The air charging and discharging assembly (3) is located in the protective sleeve (6).

4. The flexible sealing device for noble metal pipelines used in thermal spraying according to claim 3, wherein, An air nozzle (201) is arranged on the flexible sealing airbag (2). A through hole (102) communicated with the installation slot (101) is arranged on the plug main body (1). The air nozzle (201) is arranged through the through hole (102) and is communicated and connected with the air charging and discharging assembly (3).

5. The flexible sealing device for noble metal pipelines used in thermal spraying according to claim 4, wherein The air charging and discharging assembly (3) includes a stop valve (301) for controlling the on-off of the air path.

6. The flexible sealing device for noble metal pipelines used in thermal spraying according to claim 3, characterized in that The sealing plate (4) is detachably connected to the plug main body (1) through a first fastener (7). The handle (5) is detachably connected to the plug main body (1) through a second fastener (8). The protective sleeve (6) is detachably connected to the plug main body (1) through a third fastener (9).

7. The noble metal pipeline flexible sealing device for thermal spraying according to any one of claims 1 to 6, characterized in that, The number of groups of the installation slots (101) and the flexible sealing airbags (2) is set to two groups.

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