Laser tool for repairing corrosion spots on inner wall of ship pipeline

Abstract

The utility model discloses a laser tool for repairing corrosion spots on the inner wall of a ship pipeline, which comprises an optical fiber laser generator, a laser light source, a laser light source and a laser light source, the laser cavity is internally provided with a laser optical fiber output port; the pipeline is arranged between the optical fiber laser generator and the laser cavity, and the laser optical fiber extends in the pipeline; the front assembly is arranged in front of the laser cavity, the front assembly comprises a shell, a laser galvanometer, a motor, a laser field lens and an image acquisition element, the laser galvanometer, the motor, the laser field lens and the image acquisition element are arranged in the shell, and the light path direction and the irradiation range of pulse laser beams output by the laser optical fiber are changed through the laser galvanometer. The field lens focuses and irradiates the corrosion points on the inner wall of the ship pipeline to be repaired; and the display is connected with the image acquisition element so as to display the ship pipeline inner wall image acquired by the image acquisition element.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of repair devices, in particular to a kind of laser repair tools. BACKGROUND

[0002] The corrosion and damage of the pipeline of the ship can endanger the navigation safety of the ship, and therefore, preventive repair is needed.

[0003] Currently, there is a method of using a portable X-ray machine to detect the position of local corrosion of the pipeline, and using a resin cold welding repair agent to repair the corrosion position on the inner wall of the pipeline. This repair method can not only basically restore the original pipe wall strength, but also effectively prevent the corrosion wound on the inner wall of the pipeline from continuing to corrode under the condition of contacting seawater.

[0004] However, the difficulty of using the above method is that polishing is needed at the corrosion position on the inner wall of the pipeline to remove the corrosion wound and increase the adhesion of the cold welding repair agent. However, the polishing tool can damage the metal passivation film on the inner wall of the pipeline, which can easily cause new corrosion wounds near the original corrosion point under the corrosion action of seawater. SUMMARY

[0005] The utility model aims to provide a laser tool for repairing corrosion points on the inner wall of the pipeline of a ship, which can remove impurities on the corrosion wound, generate a smooth area on the original corrosion wound, facilitate the application of metal repair agent on the original corrosion wound with good adhesion, prevent further corrosion of the inner wall of the pipeline, and maintain the strength of the pipeline to continue to be used.

[0006] To achieve the above-mentioned purpose of the utility model, the utility model provides a laser tool for repairing corrosion points on the inner wall of the pipeline of a ship, which comprises:

[0007] A fiber laser generator is connected to the output end of the laser fiber;

[0008] A laser cavity has a laser fiber output port inside;

[0009] A pipeline is arranged between the fiber laser generator and the laser cavity, and the laser fiber extends in the pipeline;

[0010] A front-end component is arranged in front of the laser cavity, which comprises a housing, a laser galvanometer, a motor for driving the laser galvanometer to swing, a laser field mirror and an image acquisition element arranged in the housing. The pulsed laser beam output by the laser fiber changes the light path direction and irradiation range through the laser galvanometer, and is focused and irradiated on the corrosion point on the inner wall of the pipeline of the ship to be repaired through the field mirror.

[0011] A display, connected to the image acquisition element, is used to display images of the inner wall of the ship's pipelines acquired by the image acquisition element.

[0012] Furthermore, in the laser tool described in this utility model, the image acquisition element is a video camera element, and the display is a video display.

[0013] Furthermore, in the laser tool described in this utility model, the image acquisition element includes a first camera, which acquires video signals in front of the front-facing component.

[0014] Furthermore, in the laser tool described in this utility model, the image acquisition element includes a second camera, which acquires video signals below the front-mounted component.

[0015] Furthermore, in the laser tool described in this utility model, the front component also includes a first supplementary light, which illuminates the area in front of the front component.

[0016] Furthermore, in the laser tool described in this utility model, the front component also includes a second supplementary light, which illuminates the area below the front component.

[0017] Furthermore, in the laser tool described in this utility model, the first or second fill light is an LED light.

[0018] Furthermore, in the laser tool described in this utility model, the pipeline includes a flexible corrugated tube disposed on the side of the fiber laser generator.

[0019] Furthermore, in the laser tool described in this utility model, the pipeline also includes a rigid connecting pipe connected to the corrugated pipe, which is located on the side of the laser cavity, and the display is located on the outer wall of the rigid connecting pipe.

[0020] Furthermore, in the laser tool described in this utility model, a handle is also connected to the rigid connecting tube.

[0021] The laser tool described in this invention for repairing corrosion spots on the inner wall of ship pipelines can be easily inserted into the ship pipelines to remove impurities from the corrosion surface of the pipeline inner wall, creating a smooth area on the original corrosion surface. This allows the applied metal repair agent to adhere better to the original corrosion surface, preventing further corrosion of the pipeline inner wall and maintaining the pipeline's continued usability.

[0022] In some preferred embodiments, the laser tool for repairing corrosion spots on the inner wall of ship pipelines described in this invention can also clearly observe the condition of the inner wall of the pipeline and the corrosion site, facilitating the repair process. Attached Figure Description

[0023] Figure 1 The structure of the laser tool for repairing corrosion spots on the inner wall of ship pipelines according to this invention is shown in one embodiment.

[0024] Figure 2 This invention illustrates the working state of the laser tool for repairing corrosion spots on the inner wall of ship pipelines in one embodiment.

[0025] Figure 3 The diagram illustrates the working principle of the laser tool for repairing corrosion spots on the inner wall of ship pipelines according to this invention.

[0026] Figure 4 This diagram shows a split structure of the front component of the laser tool for repairing corrosion spots on the inner wall of ship pipelines according to one embodiment of the present invention. Detailed Implementation

[0027] The laser tool for repairing corrosion points on the inner wall of ship pipelines according to this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. However, this description does not constitute an improper limitation on the technical solution of this utility model.

[0028] Corrosion and damage to ship pipelines can endanger the safety of navigation, thus requiring preventative repairs.

[0029] One current method involves using a portable X-ray machine to detect localized corrosion in the pipeline beforehand, and then repairing the corroded areas on the inner wall of the pipeline using a resin-based cold welding repair agent. This repair method not only largely restores the original strength of the pipe wall but also effectively prevents further corrosion of the inner wall when exposed to seawater.

[0030] However, the difficulty of using the above method lies in the need to grind the corroded parts of the pipeline inner wall to remove the corrosion and increase the adhesion of the cold welding repair agent. The grinding tools may damage the metal passivation film on the inner wall of the pipeline, and under the corrosive effect of seawater, new corrosion can easily be created near the original corrosion point.

[0031] To address this problem, this invention proposes a laser tool that integrates the detection and observation process with repair.

[0032] Figure 1 The structure of the laser tool for repairing corrosion spots on the inner wall of ship pipelines according to this invention is shown in one embodiment.

[0033] like Figure 1As shown, in some embodiments, the laser tool for repairing corrosion spots on the inner wall of ship pipelines includes: a fiber laser generator 1, the output end of which is connected to a laser fiber; a laser cavity 2, which has a laser fiber output port inside; a conduit 3, which is disposed between the fiber laser generator 1 and the laser cavity 2, with the laser fiber extending within the conduit 3, i.e., extending from the fiber laser generator 1 to the laser cavity 2; and a pre-mounted assembly 4, which is disposed in front of the laser cavity 2, located at the very front of the entire laser tool, such as... Figure 4 As shown, the front-end assembly includes a housing 49, and a laser galvanometer, a motor 42 for driving the laser galvanometer to swing, a laser field lens 43, and an image acquisition element disposed within the housing; a display 5, which is connected to the image acquisition element to display the image of the inner wall of the ship's pipeline acquired by the image acquisition element.

[0034] Figure 2 This invention illustrates the working state of the laser tool for repairing corrosion spots on the inner wall of ship pipelines in one embodiment.

[0035] like Figure 2 As shown, when the laser tool is in use, the laser tool 100 is inserted into the ship's pipeline 200. The pulsed laser beam P generated by the fiber laser generator is focused at an angle of 90 degrees perpendicular to the inner wall of the ship's pipeline 200 and acts on the corrosion point 300 on the inner wall, removing impurities from the corrosion point and creating a smooth area on the original corrosion point. This allows the applied metal repair agent to adhere better to the original corrosion point, preventing further corrosion of the pipeline's inner wall and maintaining the pipeline's strength for continued use.

[0036] Figure 3 The diagram illustrates the working principle of the laser tool for repairing corrosion spots on the inner wall of ship pipelines according to this invention.

[0037] like Figure 3 As shown, the pulsed laser beam generated by the fiber laser generator 1 is output to the laser cavity 2 through the laser fiber. The laser galvanometer 41 swings under the drive of the motor 42, thereby changing the optical path direction and irradiation range of the pulsed laser beam P. Then, the pulsed laser beam P is focused by the field lens 43 and irradiates the corrosion point Q on the inner wall of the ship pipeline to be repaired.

[0038] In some more specific implementations, the laser tool uses a fiber laser generator to produce pulsed laser energy at a wavelength of 1026 nm.

[0039] In some more specific embodiments, the image acquisition element can be a video camera, and the corresponding display is a video display. In some more specific embodiments, a memory card can be built into the video display to store video data on the treatment status of the corrosion damage on the inner wall of the pipeline when the video display is used for video recording. Of course, in other optional embodiments, the image acquisition element can also be a static photographic acquisition element, such as a camera, and the corresponding display is a picture display.

[0040] Figure 4 This diagram shows a split structure of the front component of the laser tool for repairing corrosion spots on the inner wall of ship pipelines according to one embodiment of the present invention.

[0041] like Figure 4 As shown, in some preferred embodiments, the housing 49 can be configured as a separate unit for ease of component assembly. Furthermore, to enable clear visualization of the inner walls of the pipes at multiple locations when using laser tools, when the image acquisition element is a video camera element, it can include a first camera 44 for acquiring video signals from in front of the front-end assembly and a second camera 45 for acquiring video signals from below the front-end assembly. Additionally, to better protect the field lens 43, the field lens 43 can be housed within the housing 49 via a protective shell 48.

[0042] like Figure 4 As shown, in order to improve the field of view of the image acquisition element, the front component may also include a first fill light 46 that illuminates the area in front of the front component and a second fill light 47 that illuminates the area below the front component.

[0043] In some more specific implementations, in order to save energy, the first supplementary light and / or the second supplementary light can be LED lights.

[0044] Continue reading Figure 1 In some specific embodiments, the conduit 3 may include a flexible bellows 31, which is located on the side of the fiber laser generator 1. Furthermore, the conduit 3 may also include a rigid connecting pipe 32 connected to the bellows 31, located on the side of the laser cavity 2. The rigid connecting pipe 32 provides support for the laser tool to extend into the conduit. Figure 1 As shown, the display 5 can be mounted on the outer wall of the rigid connecting pipe.

[0045] Continue reading Figure 1 In some preferred embodiments, to improve the ease of use of the laser tool, a handle 6 that is easy for the operator to hold is also connected to the rigid connecting tube 32.

[0046] In some preferred embodiments, the handle may be provided with a control button 61, and the handle 6 may be hollow, containing a data connection cable and a wire for connecting to at least one of a display, an image acquisition element, a laser generator, and a motor.

[0047] In this manner, the laser tool for repairing corrosion spots on the inner wall of ship pipelines described in this utility model can be conveniently inserted into the ship's pipeline to remove impurities from the corrosion surface of the pipeline inner wall, creating a smooth area on the original corrosion surface. This allows the applied metal repair agent to adhere better to the original corrosion surface, preventing further corrosion of the pipeline inner wall and maintaining the pipeline's continued usability.

[0048] In some preferred embodiments, the laser tool for repairing corrosion spots on the inner wall of ship pipelines described in this invention can also clearly observe the condition of the inner wall of the pipeline and the corrosion site, facilitating the repair process.

[0049] It should be noted that the prior art portion of the protection scope of this utility model is not limited to the embodiments given in this utility model document. All prior art that does not contradict the solution of this utility model, including but not limited to prior patent documents, prior publications, prior public uses, etc., can be included in the protection scope of this utility model.

[0050] Furthermore, it should be noted that the combination of the various technical features in this case is not limited to the combination methods described in the claims of this case or the combination methods described in the specific embodiments. All technical features described in this case can be freely combined or combined in any way, unless they contradict each other.

[0051] It should be noted that the embodiments listed above are merely specific embodiments of this utility model. Obviously, this utility model is not limited to the above embodiments, and similar changes or modifications made thereto are those that can be directly derived or easily conceived by those skilled in the art from the content disclosed in this utility model, and should all fall within the protection scope of this utility model.

Claims

1. A laser tool for repairing corrosion spots on the inner wall of ship pipelines, characterized in that, include: A fiber laser generator, the output of which is connected to a laser fiber; A laser cavity with an internal laser fiber output port; A conduit is disposed between the fiber laser generator and the laser cavity, and the laser fiber extends within the conduit. A pre-positioning component is positioned before the laser cavity. The pre-positioning component includes a housing, a laser galvanometer, a motor for driving the laser galvanometer to swing, a laser field lens, and an image acquisition element, all housed within the housing. The pulsed laser beam output from the laser fiber is redirected and its irradiation range is altered by the laser galvanometer, and then focused by the field lens onto the corrosion points on the inner wall of the ship's pipeline to be repaired. A display, connected to the image acquisition element, is used to display images of the inner wall of the ship's pipelines acquired by the image acquisition element.

2. The laser tool as described in claim 1, characterized in that, The image acquisition element is a video camera element, and the display is a video display.

3. The laser tool as described in claim 2, characterized in that, The image acquisition element includes a first camera, which acquires video signals from in front of the front-facing component.

4. The laser tool as described in claim 2, characterized in that, The image acquisition element includes a second camera, which acquires video signals from below the front-facing component.

5. The laser tool as described in claim 1, characterized in that, The front-mounted component also includes a first fill light that illuminates the area in front of the front-mounted component.

6. The laser tool as described in claim 5, characterized in that, The first supplementary light is an LED light.

7. The laser tool as described in claim 1, characterized in that, The front-mounted component also includes a second fill light that illuminates the area below the front-mounted component.

8. The laser tool as described in claim 7, characterized in that, The second supplementary light is an LED light.

9. The laser tool as described in claim 1, characterized in that, The conduit includes a flexible corrugated pipe located on the side of the fiber laser generator.

10. The laser tool as described in claim 9, characterized in that, The pipeline also includes a rigid connecting pipe connected to the corrugated pipe, which is located on the laser cavity side, and the display is located on the outer wall of the rigid connecting pipe.

11. The laser tool as described in claim 10, characterized in that, A handle is also connected to the rigid connecting pipe.

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