Inspection device for titanium residues on peeling surface of groove of cylinder body of pressure vessel

Abstract

The utility model discloses an inspection device for titanium residues on a peeling surface of a groove of a cylinder of a pressure vessel, which belongs to the technical field of inspection of the pressure vessel and comprises a moving trolley capable of moving on a titanium-stainless steel composite plate; the first electrolysis assembly is installed at the front end of the moving trolley, and the first electrolysis assembly is used for carrying out first detection on a groove stripping surface; the grinding assembly is mounted on the moving trolley, is arranged behind the moving part of the first electrolysis assembly and is used for cleaning titanium metal residues detected by the first electrolysis assembly; the second electrolysis assembly is installed on the moving trolley and arranged behind the moving position of the grinding assembly, and the second electrolysis assembly is used for rechecking the peeled surface of the groove ground by the grinding assembly; according to the utility model, the titanium metal residue on the peeling surface of the groove can be rapidly and accurately detected and can be removed, so that the overall period of the detection process is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessel inspection, in particular to an inspection device for titanium residue on a stripping surface of a groove of a cylinder of a pressure vessel. Background Art

[0002] In the pressure vessel industry, the main weld of the titanium-stainless steel composite plate container requires that after the titanium metal layer is peeled off, it is confirmed that there is no titanium metal residue on the peeled surface. This is to prevent the residual titanium metal during welding from affecting the quality of the main base weld.

[0003] Titanium-carbon steel composite plates are distinguished by copper sulfate solution, which reacts with carbon steel to produce red copper, while titanium metal does not react with copper sulfate solution. This is used to confirm whether there is any titanium metal residue on the peeled surface of the composite plate; however, this inspection method cannot be used on titanium-stainless steel composite plates.

[0004] At present, most of the methods to determine whether there is titanium metal residue on the peeled surface of titanium-stainless steel composite plates are to grind the peeled surface and judge whether there is titanium metal residue based on the polished cremation color. This detection method requires a lot of grinding work and is time-consuming and labor-intensive. In addition, the judgment of the cremation color is highly dependent on the operator's experience, and the detection accuracy is poor, especially for small amounts of titanium residues, which are difficult to detect.

[0005] Currently in the field of titanium-stainless steel composite plates, there is no equipment that can quickly and accurately detect titanium metal residues on the peeled surface and further clean the detected titanium metal residue areas, which brings great safety risks and quality hazards to product manufacturing.

[0006] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a device for inspecting titanium residues on the stripping surface of the groove of a pressure vessel cylinder, which can quickly and accurately detect the titanium metal residues on the stripping surface of the groove and remove the titanium metal residues, thereby shortening the overall cycle of the inspection process and improving production efficiency.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions: a device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder, comprising:

[0009] A mobile trolley, wherein the mobile trolley can move on a titanium-stainless steel composite plate;

[0010] A first electrolytic assembly, which is installed at the front end of the mobile vehicle and is used to perform a first inspection on the stripping surface of the groove;

[0011] A polishing assembly, which is mounted on a mobile trolley and is located behind the first electrolytic assembly for cleaning titanium metal residues detected by the first electrolytic assembly;

[0012] The second electrolytic component is installed on the mobile trolley and is arranged behind the movement of the grinding component to re-inspect the groove stripping surface after grinding of the grinding component.

[0013] Furthermore, the first electrolytic component and the second electrolytic component each include a wheel-type electrode that can roll along the groove stripping surface, and the outer periphery of the wheel-type electrode that contacts the groove stripping surface is respectively coated with an annular sponge, and the annular sponge can absorb full electrolyte;

[0014] The wheel-type electrode, the annular sponge fully absorbing the electrolyte, and the titanium-stainless steel composite plate form an electrolytic circuit after being energized.

[0015] Furthermore, a connecting shaft is fixed on the mobile trolley, and the wheel-type electrode is rotatably mounted on the connecting shaft through a bearing;

[0016] The connecting shaft is a hollow tube, one end of which is connected to the liquid outlet of the electrolyte storage tank, and the other end of which is connected to the infusion channel, and the electrolyte flowing out of the infusion channel is absorbed by the annular sponge.

[0017] Furthermore, when the wheel-type electrode rolls along the groove peeling surface, the annular sponge is in close contact with the groove peeling surface, and the wheel-type electrode remains out of contact with the titanium-stainless steel composite plate.

[0018] Furthermore, the power wheels of the mobile vehicle are made of conductive metal and are in rolling contact with the titanium-stainless steel composite plate;

[0019] The mobile trolley is provided with an electrolytic power source, the wheel-type electrode is connected to the negative electrode of the electrolytic power source, and the power wheel is connected to the positive electrode of the power source to form an electrolytic circuit.

[0020] Furthermore, the grinding assembly includes a sanding belt and a motor, the sanding belt is wound around a sanding wheel and a tensioning wheel, and the sanding wheel is installed on an output shaft of the motor.

[0021] Furthermore, the annular sponge can fully cover the groove peeling surface along the width direction.

[0022] Furthermore, the hollow tube is provided with a regulating valve.

[0023] Furthermore, the infusion channel is opened inside the wheel-type electrode, and the liquid outlet of the infusion channel is opened on the outer peripheral wall of the wheel-type electrode;

[0024] The infusion channel is arranged in a cross shape with the wheel electrode axis.

[0025] Furthermore, the mobile trolley is provided with a lifting mechanism, a motor seat is installed on the lifting component of the lifting mechanism, and the motor is installed on the motor seat;

[0026] A bracket is installed on the motor seat, and the tensioning wheel is rotatably installed on the bracket through a shaft.

[0027] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0028] 1. The utility model sets a first electrolytic component and utilizes that, after electrolytic anodization, titanium and titanium alloys form an oxide film on their surfaces, the color of which is obviously different from the color of the stainless steel substrate of the titanium-stainless steel composite plate. This can quickly and accurately detect the titanium metal residue on the stripping surface of the groove; by setting a polishing component, the titanium metal residue can be removed, thus shortening the overall cycle of the inspection process and improving production efficiency.

[0029] 2. The utility model is provided with a second electrolytic component to re-inspect the stripped surface of the groove after grinding, and the qualified rate of one-time cleaning is improved through the integration of inspection-cleaning-re-inspection, which greatly shortens the overall cycle of the inspection process.

[0030] 3. The connecting shaft of the utility model is a hollow tube, and one end is connected to the electrolyte storage tank, and the other end is connected to the infusion channel arranged in the wheel electrode, so that the electrolyte is delivered to the annular sponge, and a regulating valve is arranged on the hollow tube, which can realize the automatic delivery of the electrolyte, reduce the contact of the staff, and reduce the harm; and the electrolyte delivery amount can be adjusted according to the moving speed of the mobile car, which can avoid the uneven detection phenomenon caused by uneven electrolytic reaction and improve the reliability of detection.

[0031] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0033] Figure 2 It is a three-dimensional schematic diagram of the utility model from another angle;

[0034] Figure 3 It is a top view of the utility model;

[0035] Figure 4 It is a front view of the utility model.

[0036] In the figure,

[0037] 1-mobile body, 2-first electrolytic component, 3-grinding component, 31-sand belt, 32-sand belt wheel, 33-motor, 34-tensioning wheel, 35-motor seat, 36-bracket, 4-second electrolytic component, 5-wheel electrode, 6-annular sponge, 7-power wheel, 8-connecting shaft, 9-electrolyte storage tank, 10-infusion channel, 11-regulating valve, 12-lifting mechanism. DETAILED DESCRIPTION

[0038] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0039] like Figure 1-4 As shown in the figure, the utility model provides a device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder, comprising:

[0040] The mobile trolley 1 can move on the titanium-stainless steel composite plate; the mobile trolley 1 is provided with a power wheel 7, the material of the power wheel 7 is conductive metal, and is in rolling contact with the titanium-stainless steel composite plate.

[0041] A first electrolytic assembly 2, which is mounted at the front end of the mobile vehicle 1. The first electrolytic assembly 2 can electrolytically oxidize the residual titanium metal on the groove stripping surface to form an oxide film whose color is different from the color of the stainless steel substrate of the titanium-stainless steel composite plate, so as to perform a first inspection on the residual titanium metal on the groove stripping surface;

[0042] A polishing assembly 3, which is mounted on the mobile vehicle 1 and arranged behind the first electrolytic assembly 2, and is used to clean the titanium metal residue detected by the first electrolytic assembly;

[0043] The second electrolytic component 4 is installed on the mobile trolley and arranged behind the grinding component 3. The second electrolytic component 4 has the same principle as the first electrolytic component 2 and is used to re-inspect the groove peeling surface after grinding of the grinding component 3.

[0044] The first electrolytic component 2 and the second electrolytic component 4 have the same structure, and both include a wheel-type electrode 5 that can roll along the groove peeling surface, and the outer periphery of the wheel-type electrode 5 that contacts the groove peeling surface is respectively coated with an annular sponge 6, and the annular sponge 6 can absorb full electrolyte. The electrolyte can be any one of sulfuric acid solution, organic acid, nitrate and NaOH solution; preferably, the electrolyte is NaOH solution.

[0045] The mobile trolley 1 is equipped with an electric drive system, which can drive the wheel electrode 5 to roll along the groove peeling surface. During the rolling process, the annular sponge 6 is in close contact with the groove peeling surface, and the wheel electrode 5 remains out of contact with the titanium-stainless steel composite plate.

[0046] The mobile vehicle 1 is provided with an electrolytic power source, the wheel electrode 5 is connected to the negative electrode of the electrolytic power source, and the power wheel 7 is connected to the positive electrode of the power source to form an electrolytic circuit.

[0047] A connecting shaft 8 is fixed on the mobile trolley 1, and the wheel electrode 5 is rotatably mounted on the connecting shaft 8 through a bearing; the annular sponge 6 can fully cover the groove peeling surface along the width direction to ensure that there is no dead angle in the inspection.

[0048] Furthermore, the connecting shaft 8 is a hollow tube, one end of which is connected to the outlet of the electrolyte storage tank 9, and the other end of which is connected to the infusion channel 10. The infusion channel 10 is opened inside the wheel electrode 5, and the outlet of the infusion channel 10 is opened on the outer wall of the wheel electrode 5, so that the electrolyte can be absorbed by the annular sponge after flowing out.

[0049] Preferably, the infusion channel 10 is arranged in a cross shape with the wheel electrode 5 as the axis.

[0050] The connecting shaft 8 is provided with a regulating valve 11 to control the delivery speed of the electrolyte to match the different moving speeds of the moving vehicle 1 .

[0051] Furthermore, the grinding assembly 3 includes a grinding belt 31 and a motor 33. The grinding belt 31 is wound around a grinding belt wheel 32 and a tensioning wheel 34. The grinding belt wheel 32 is installed on the output shaft of the motor 33. The motor 33 drives the grinding belt 31 to rotate to achieve the grinding function.

[0052] The mobile trolley 1 is provided with a lifting mechanism 12, and a motor seat 35 is installed on the lifting component of the lifting mechanism 12. The motor 33 is installed on the motor seat 35. Driven by the lifting mechanism 12, the grinding assembly 3 is lifted and lowered, so that when grinding is required, the motor seat 35 is lowered for grinding; after grinding is completed, the motor seat 35 can be lifted.

[0053] Furthermore, a bracket 36 is installed on the motor seat 35, and the tensioning wheel 34 is rotatably installed on the bracket 36 through a shaft.

[0054] It should be noted that the lifting mechanism 12 is an existing conventional component that can automatically move up and down, and will not be described in detail here.

[0055] The working principle of this utility model:

[0056] The titanium in the titanium-stainless steel composite plate is an active metal. When the power is on, the titanium atoms will lose electrons under the action of the electric field and separate from the metal surface to form titanium ions. When there are oxygen molecules in the electrolyte, the titanium ions will combine with the oxygen molecules to form titanium oxide, which will oxidize on the titanium surface to form a dense oxide film.

[0057] Under the interference of light, the titanium oxide film can present a color different from the stainless steel substrate of the titanium-stainless steel composite plate, and the main chemical elements in stainless steel are iron, nickel, and chromium, and their metal activity is lower than that of titanium, so they will not react, so the stainless steel surface does not change color. Based on this principle, the inspection device of the utility model can easily distinguish the titanium metal and stainless steel remaining at the groove peeling surface of the titanium-stainless steel composite plate, and completely remove the residual titanium metal by grinding the components.

[0058] Specifically, the mobile trolley drives the first electrolytic component, the grinding component, and the second electrolytic component to move. The first electrolytic component is energized to form a circuit between the corresponding wheel electrode, the annular sponge and the titanium-stainless steel composite plate, and the groove stripping surface is first inspected. If there is titanium metal residue, the residual titanium metal is electrolytically oxidized to form an oxide film whose color is different from the color of the stainless steel substrate of the titanium-stainless steel composite plate. The residual titanium metal is polished and cleaned by rotating the sanding belt driven by the motor; then the second electrolytic component is energized to form a circuit between the corresponding wheel electrode, the annular sponge and the titanium-stainless steel composite plate, and the polished stripping surface is re-inspected. The qualified rate of one-time cleaning is improved by the integration of inspection-cleaning-re-inspection, and the overall cycle of the inspection process is greatly shortened.

[0059] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder. It is characterized in that include: A movable trolley (1), wherein the movable trolley (1) is movable on a titanium-stainless steel composite plate; A first electrolytic component (2), the first electrolytic component (2) being mounted at the front end of the mobile vehicle (1), and the first electrolytic component (2) being used for performing a first inspection on the stripping surface of the groove; A grinding component (3), the grinding component (3) being mounted on the movable trolley (1) and arranged behind the moving first electrolytic component (2), and being used to clean titanium metal residues detected by the first electrolytic component (2); The second electrolytic component (4) is mounted on a movable trolley and is arranged behind the movement of the grinding component (3) to re-inspect the groove peeling surface after grinding by the grinding component (3).

2. A device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder as claimed in claim 1, It is characterized in that The first electrolytic component (2) and the second electrolytic component (4) both comprise a wheel-type electrode (5) that can roll along the groove peeling surface, and the outer circumference of the wheel-type electrode (5) that contacts the groove peeling surface is respectively coated with an annular sponge (6), and the annular sponge (6) can absorb a full electrolyte; The wheel-type electrode (5), the annular sponge (6) fully absorbing the electrolyte, and the titanium-stainless steel composite plate form an electrolytic circuit after being energized.

3. A device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder as claimed in claim 2, It is characterized in that A connecting shaft (8) is fixed on the movable trolley (1), and the wheel-type electrode (5) is rotatably mounted on the connecting shaft (8) via a bearing; The connecting shaft (8) is a hollow tube, one end of which is connected to the liquid outlet of the electrolyte storage tank (9), and the other end of which is connected to the liquid infusion channel (10). The electrolyte flowing out of the liquid infusion channel (10) is absorbed by the annular sponge (6).

4. A device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder as claimed in claim 2, It is characterized in that When the wheel-type electrode (5) rolls along the groove peeling surface, the annular sponge (6) is in close contact with the groove peeling surface, and the wheel-type electrode (5) remains out of contact with the titanium-stainless steel composite plate.

5. A device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder as claimed in claim 2, It is characterized in that The power wheel (7) on the mobile vehicle (1) is made of conductive metal and is in rolling contact with the titanium-stainless steel composite plate; The mobile trolley (1) is provided with an electrolytic power source, the wheel electrode (5) is connected to the negative electrode of the electrolytic power source, and the power wheel (7) is connected to the positive electrode of the power source to form an electrolytic circuit.

6. A device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder as claimed in claim 1, It is characterized in that The grinding assembly (3) comprises a sanding belt (31) and a motor (33); the sanding belt (31) is wound around a sanding belt wheel (32) and a tensioning wheel (34); and the sanding belt wheel (32) is mounted on an output shaft of the motor (33).

7. A device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder as claimed in claim 2, It is characterized in that The annular sponge (6) can fully cover the groove peeling surface along the width direction.

8. A device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder as claimed in claim 3, It is characterized in that The hollow tube is provided with a regulating valve (11).

9. A device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder as claimed in claim 3, It is characterized in that The infusion channel (10) is provided inside the wheel-type electrode (5), and the liquid outlet of the infusion channel (10) is provided on the outer peripheral wall of the wheel-type electrode (5); The infusion channel (10) is arranged in a cross-shaped pattern with the axis of the wheel-type electrode (5) at the center.

10. A device for inspecting titanium residue on the peeling surface of the groove of a pressure vessel cylinder as claimed in claim 6, It is characterized in that The mobile trolley (1) is provided with a lifting mechanism (12), a motor seat (35) is installed on the lifting component of the lifting mechanism (12), and the motor (33) is installed on the motor seat (35); A bracket (36) is mounted on the motor seat (35), and the tension wheel (34) is rotatably mounted on the bracket (36) via a shaft.

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