Hardness detection device for inner wall of large pressure vessel

Abstract

The utility model discloses a large -scale pressure vessel inner wall hardness detection device, including hardness detection unit for carrying out hardness detection to pressure vessel inner wall, the hardness detection unit includes hardness gauge body, hardness information acquisition module and support plate, hardness gauge body and hardness information acquisition module all install in the upper surface of support plate, the hardness information acquisition module is used for gathering the hardness information of hardness gauge body measurement, drive telescopic device sets up in the lower extreme of hardness detection unit for controlling the probe of hardness gauge body and pressure vessel inner wall contact, this large -scale pressure vessel inner wall hardness detection device can solve the hardness detection difficult of pressure vessel inner wall in prior art, and the low efficiency, poor accuracy and lack of data management and remote monitoring function etc.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel quality inspection technology, specifically a device for testing the hardness of the inner wall of a large pressure vessel. Background Technology

[0002] Pressure vessels are widely used equipment in industrial production, and their safety is of paramount importance. Hardness is one of the important indicators for measuring the performance of pressure vessel materials. By testing the hardness of the inner wall of a pressure vessel, the strength, wear resistance, and other properties of the material can be effectively assessed, and performance changes caused by long-term use, corrosion, and other factors can be detected in a timely manner, thereby preventing safety accidents.

[0003] However, in actual testing, especially for some large pressure vessels, inspectors usually need to enter the pressure vessel for manual inspection. This not only results in a harsh working environment and significant safety risks, but also leads to low testing efficiency and difficulty in guaranteeing the accuracy of test results. In addition, existing testing equipment has limited functionality and cannot effectively manage test data, which is not conducive to the informatization and intelligent development of testing work. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a device for testing the hardness of the inner wall of a large pressure vessel. This device can solve the problems of difficulty in testing the hardness of the inner wall of a pressure vessel, low efficiency, poor accuracy, and lack of data management and remote monitoring functions in the existing technology. It can achieve efficient and accurate testing of the hardness of the inner wall of a pressure vessel and improve the safety and intelligence level of the testing work.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for detecting the hardness of the inner wall of a large pressure vessel, comprising:

[0006] A hardness testing unit is used to test the hardness of the inner wall of a pressure vessel. The hardness testing unit includes a hardness tester body, a hardness information acquisition module, and a support plate. The hardness tester body and the hardness information acquisition module are both installed on the upper surface of the support plate. The hardness information acquisition module is used to acquire the hardness information measured by the hardness tester body.

[0007] A drive telescopic device is installed at the lower end of the hardness detection unit to control the probe of the hardness tester body to contact the inner wall of the pressure vessel.

[0008] A rotating mechanism is provided at the lower end of the drive telescopic device. The rotating mechanism is used to control the rotation of the hardness detection unit to perform hardness detection at different positions on the same circumferential plane of the inner wall of the pressure vessel.

[0009] A multi-stage telescopic mechanism, connected to the rotating mechanism, is used to control the hardness detection unit to move along the axis of the pressure vessel. The multi-stage telescopic mechanism is installed on the upper end of the support plate.

[0010] A height adjustment device is provided at the lower end of the support plate, which is used to adjust the corresponding entry height of the hardness detection unit according to the horizontal placement height of the pressure vessel;

[0011] The control unit is electrically connected to the hardness detection unit, the drive telescopic device, the rotation mechanism, the multi-stage telescopic mechanism, and the height adjustment device, respectively, and is used to control the operation of the above-mentioned working components and to receive and process the hardness detection data fed back by the hardness detection unit.

[0012] As a preferred embodiment of this utility model, an mounting plate is also fixed on the upper surface of the support plate, and a distance sensor is provided on the mounting plate for detecting the distance between the probe of the hardness tester body and the inner wall of the pressure vessel.

[0013] As a preferred embodiment of this utility model, the driving telescopic device is an electric telescopic rod.

[0014] As a preferred technical solution of this utility model, the rotating mechanism includes a fixed disk, a drive motor, a driving gear, a driven gear, a rotating shaft, a first connecting disk, a plug-in component, and a plug connector;

[0015] One end of the rotating shaft is rotatably connected to the fixed disk, and the other end of the rotating shaft is fixedly connected to the first connecting disk. The driven gear is sleeved on the outer side of the rotating shaft, and the driving gear is meshed with one side of the driven gear. The driving gear is connected to the output end of the drive motor. The drive motor is fixed to one end of the fixed disk. One end of the first connecting disk is connected to the plug-in connector through a plug-in. The drive telescopic device is vertically fixed to the outer side of the plug-in connector.

[0016] As a preferred embodiment of this utility model, one end of the connector is provided with a cross groove, the connector is a cross-shaped structure corresponding to the cross groove, and the connector is fixed by spot welding after being inserted into the cross groove.

[0017] As a preferred embodiment of this invention, one end of the connector is equipped with a camera module for detecting the internal environment of the pressure vessel.

[0018] As a preferred embodiment of this utility model, the multi-stage telescopic mechanism includes a vertical plate, a first-stage telescopic rod, a second connecting plate, and a second-stage telescopic rod. The fixed end of the first-stage telescopic rod is fixedly connected to the vertical plate, the telescopic end of the first-stage telescopic rod is fixedly connected to the second connecting plate, the fixed end of the second-stage telescopic rod is fixed to the other end of the second connecting plate, and the telescopic end of the second-stage telescopic rod is fixedly connected to the fixed plate.

[0019] As a preferred technical solution of this utility model, the height adjustment device is installed on the upper end of the walking base assembly. The walking base assembly includes a base plate, outriggers and universal locking wheels. The outriggers are evenly distributed on the lower surface of the base plate, and universal locking wheels are provided at the lower ends of the outriggers.

[0020] As a preferred technical solution of this utility model, it also includes a data display unit and a storage unit, which are electrically connected to the control unit and are used to display the hardness data detected by the hardness detection unit in real time and store the detection data. The data display and storage unit has a data export interface, which facilitates exporting the stored data to an external device for further analysis and processing.

[0021] Compared with the prior art, the beneficial effects of this utility model are: (1) The height of the hardness testing unit can be adjusted according to the horizontal placement height of a large pressure vessel by means of a height adjustment device. By setting up a multi-stage telescopic mechanism and a camera module, the hardness testing unit can be quickly and accurately sent to the position to be tested on the inner wall of the pressure vessel, avoiding the limitations of manual testing and improving testing efficiency; (2) By setting up a rotating mechanism, hardness testing can be performed on multiple testing points on the same circumferential plane, improving the convenience of testing. At the same time, by driving the telescopic device, the hardness tester body in the hardness testing unit can be brought into contact with the inner wall of the pressure vessel, ensuring the accuracy of testing; (3) Testing personnel do not need to enter the inside of the pressure vessel, reducing the safety risks of working in harsh environments and ensuring the personal safety of testing personnel; (4) The control unit, data display and storage unit can display and store testing data in real time, facilitating the analysis and management of testing results and realizing information-based and intelligent testing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is the front view of the present utility model;

[0024] Figure 3 This is a schematic diagram of the connector structure.

[0025] In the diagram: 1 Hardness testing unit, 11 Hardness tester body, 12 Hardness information acquisition module, 13 Support plate, 2 Drive telescopic device, 3 Distance sensor, 4 Mounting plate, 5 Rotation mechanism, 51 Fixed plate, 52 Drive motor, 53 Drive gear, 54 Driven gear, 55 Rotating shaft, 56 First connecting plate, 57 Connector, 58 Cross groove, 59 Connector, 6 Camera module, 7 Multi-stage telescopic mechanism, 71 Vertical plate, 72 First-stage telescopic rod, 73 Second connecting plate, 74 Second-stage telescopic rod, 8 Support plate, 9 Height adjustment device, 10 Walking base assembly, 101 Base plate, 102 Outriggers, 103 Universal locking wheels, 200 Control unit, 201 Data display unit and storage unit. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments (for ease of description and understanding, hereinafter referred to as...). Figure 2 (The above is described above). Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Please see Figure 1-3 This utility model provides a technical solution: a hardness testing device for the inner wall of a large pressure vessel, comprising a hardness testing unit 1, a drive telescopic device 2, a rotating mechanism 5, a multi-stage telescopic mechanism 7, a height adjustment device 9, and a control unit 200.

[0028] The hardness testing unit 1 includes a hardness tester body 11, a hardness information acquisition module 12, and a support plate 13. The hardness tester body 11 and the hardness information acquisition module 12 are both mounted on the upper surface of the support plate 13. The hardness information acquisition module 12 is used to acquire the hardness information measured by the hardness tester body 11, so as to realize the intelligent acquisition of hardness data.

[0029] The drive telescopic device 2 is located at the lower end of the hardness testing unit 1 and is used to control the probe of the hardness tester body 11 to contact the inner wall of the pressure vessel. The drive telescopic device 2 is preferably an electric telescopic rod, and the telescopic end of the electric telescopic rod is connected to the support plate 13.

[0030] The rotating mechanism 5 includes a fixed disk 51, a drive motor 52, a driving gear 53, a driven gear 54, a rotating shaft 55, a first connecting disk 56, a plug-in component 57, and a plug-in connector 59.

[0031] One end of the rotating shaft 55 is rotatably connected to the fixed disk 51, and the other end of the rotating shaft 55 is fixedly connected to the first connecting disk 56. The driven gear 54 is sleeved on the outer side of the rotating shaft 55, and the driving gear 53 is meshed with one side of the driven gear 54. The driving gear 53 is connected to the output end of the drive motor 52. The drive motor 52 is fixed at one end of the fixed disk 51. One end of the first connecting disk 56 is connected to the plug 59 through the plug 57. The drive telescopic device 2 is vertically fixed on the outer side of the plug 59. The drive motor 52 controls the rotation of the driving gear 53 and the driven gear 54, thereby driving the rotating shaft 55 to rotate, which in turn causes the hardness detection unit 1 to rotate. The welding position inside the pressure vessel needs to be tested at multiple points along its circumference to ensure its pressure resistance. Under the action of the rotating mechanism 5, the hardness of different positions on the same circumferential plane of the inner wall of the pressure vessel is tested.

[0032] The multi-stage telescopic mechanism 7 includes a vertical plate 71, a primary telescopic rod 72, a second connecting plate 73, and a secondary telescopic rod 74. The fixed end of the primary telescopic rod 72 is fixedly connected to the vertical plate 71, and the telescopic end of the primary telescopic rod 72 is fixedly connected to the second connecting plate 73. The fixed end of the secondary telescopic rod 74 is fixed to the other end of the second connecting plate 73, and the telescopic end of the secondary telescopic rod 74 is fixedly connected to the fixed plate 51. The vertical plate 71 is installed on the upper end of the support plate 8. Multiple primary telescopic rods 72 and secondary telescopic rods 74 can be provided to facilitate the control of the hardness detection unit 1 moving along the axis of the pressure vessel. The primary telescopic rods 72 and secondary telescopic rods 74 are preferably hydraulically driven telescopic.

[0033] The height adjustment device 9 is preferably a hydraulic lifting column, whose telescopic end is connected to the lower end face of the support plate 8, and whose fixed end is connected to the walking base assembly 10. The height adjustment device 9 can adjust the corresponding entry height of the hardness detection unit 1 according to the horizontal placement height of the pressure vessel.

[0034] The control unit 200 is electrically connected to the hardness detection unit 1, the drive telescopic device 2, the rotating mechanism 5, the multi-stage telescopic mechanism 7, and the height adjustment device 9, respectively. It is used to control the operation of the above-mentioned working components and to receive and process the hardness detection data fed back by the hardness detection unit 1. It also includes a data display unit and a storage unit 201, which is electrically connected to the control unit 200. It is used to display the hardness data detected by the hardness detection unit 1 in real time and store the detection data. The data display and storage unit has a data export interface, which facilitates the export of the stored data to external devices for further analysis and processing, realizing the informatization and intelligent development of hardness detection work inside the pressure vessel. The control unit 200 and the data display and storage unit 201 are both mounted on the L-shaped support plate, which is fixed on the walking base assembly 10.

[0035] Furthermore, in order to facilitate the control of the contact between the hardness tester body 11 and the inner wall of the pressure vessel in the hardness testing unit 1, a mounting plate 4 is also fixed on the upper surface of the support plate 13. A distance sensor 3 is provided on the mounting plate 4 to detect the distance between the probe of the hardness tester body 11 and the inner wall of the pressure vessel. The height of the distance sensor 3 is slightly lower than the height of the probe end of the hardness tester body 11.

[0036] To ensure the connection stability and coaxiality of the connector 57 and the plug 59, one end of the plug 59 is provided with a cross groove 58, and the connector 57 is a cross-shaped structure corresponding to the cross groove 58. After the connector 57 is inserted into the cross groove 58, it is fixed by spot welding.

[0037] Furthermore, to facilitate the detection of the internal environment of the pressure vessel, a camera module 6 is installed at one end of the connector 59. The output end of the camera module 6 is electrically connected to the input end of the data display and storage unit, which makes it easier for staff to accurately determine the location that needs to be detected.

[0038] To facilitate the movement of this device, the walking base assembly 10 includes a base plate 101, support legs 102 and universal locking wheels 103. The support legs 102 are evenly distributed on the lower surface of the base plate 101, and universal locking wheels 103 are provided at the lower ends of the support legs 102.

[0039] In use: Move the device to the side of the pressure vessel to be tested. The pressure vessel is placed horizontally. The height adjustment device 9 is controlled by the control unit to lift the support plate 8, allowing the hardness testing unit 1 to enter the pressure vessel. Then, the first-stage telescopic rod and the second-stage telescopic rod 74 in the multi-stage telescopic mechanism 7 are controlled to extend together, sending the hardness testing unit 1 into the pressure vessel. The internal condition of the pressure vessel is observed based on the image captured by the camera module 6. The hardness testing unit 1 is moved to the position to be tested, and then the drive telescopic device 2 is activated to lift the hardness testing unit 1. The distance sensor 3 determines the distance between the hardness testing unit 1 and the inner wall of the pressure vessel until the hardness tester body 11 touches the inner wall of the pressure vessel for hardness testing. The detected hardness information is transmitted to the control unit through the hardness information acquisition module 12, and then the hardness data is recorded and displayed through the data display unit and storage unit.

[0040] When performing hardness testing on different positions of the same circumferential plane on the inner wall of the pressure vessel, it is necessary to start the drive motor 52, and then control the rotating shaft 55 to rotate under the meshing transmission of the drive gear 53 and the driven gear 54, thereby driving the hardness testing unit 1 to rotate and change the testing position.

[0041] The parts of the utility model not described in detail are prior art. Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the hardness of the inner wall of a large pressure vessel, characterized in that: include: The hardness testing unit (1) is used to test the hardness of the inner wall of the pressure vessel. The hardness testing unit (1) includes a hardness tester body (11), a hardness information acquisition module (12) and a support plate (13). The hardness tester body (11) and the hardness information acquisition module (12) are both installed on the upper surface of the support plate (13). The hardness information acquisition module (12) is used to acquire the hardness information measured by the hardness tester body (11). The drive telescopic device (2) is located at the lower end of the hardness detection unit (1) and is used to control the probe of the hardness tester body (11) to contact the inner wall of the pressure vessel. A rotating mechanism (5) is provided at the lower end of the drive telescopic device (2). The rotating mechanism (5) is used to control the rotation of the hardness detection unit (1) to perform hardness detection at different positions on the same circumferential plane of the inner wall of the pressure vessel. A multi-stage telescopic mechanism (7) is connected to the rotating mechanism (5) and is used to control the hardness detection unit (1) to move along the axis of the pressure vessel. The multi-stage telescopic mechanism (7) is installed on the upper end of the support plate (8). A height adjustment device (9) is provided at the lower end of the support plate (8) for adjusting the corresponding entry height of the hardness detection unit (1) according to the horizontal placement height of the pressure vessel; The control unit (200) is electrically connected to the hardness detection unit (1), the drive telescopic device (2), the rotation mechanism (5), the multi-stage telescopic mechanism (7), and the height adjustment device (9), respectively, and is used to control the operation of the above-mentioned working parts and to receive and process the hardness detection data fed back by the hardness detection unit (1).

2. The device for detecting the hardness of the inner wall of a large pressure vessel according to claim 1, characterized in that: The upper surface of the support plate (13) is also fixed with an mounting plate (4), and a distance sensor (3) is provided on the mounting plate (4) for detecting the distance between the probe of the hardness tester body (11) and the inner wall of the pressure vessel.

3. The device for detecting the hardness of the inner wall of a large pressure vessel according to claim 1, characterized in that: The drive telescopic device (2) is an electric telescopic rod.

4. A device for detecting the hardness of the inner wall of a large pressure vessel according to claim 1 or 3, characterized in that: The rotating mechanism (5) includes a fixed disk (51), a drive motor (52), a driving gear (53), a driven gear (54), a rotating shaft (55), a first connecting disk (56), a plug-in component (57), and a plug-in connector (59); One end of the rotating shaft (55) is rotatably connected to the fixed disk (51), and the other end of the rotating shaft (55) is fixedly connected to the first connecting disk (56). The driven gear (54) is sleeved on the outer side of the rotating shaft (55). The driving gear (53) is meshed with one side of the driven gear (54). The driving gear (53) is connected to the output end of the drive motor (52). The drive motor (52) is fixed at one end of the fixed disk (51). One end of the first connecting disk (56) is connected to the plug (59) through the plug (57). The drive telescopic device (2) is vertically fixed on the outer side of the plug (59).

5. The device for detecting the hardness of the inner wall of a large pressure vessel according to claim 4, characterized in that: One end of the connector (59) is provided with a cross groove (58), and the connector (57) is a cross-shaped structure corresponding to the cross groove (58). The connector (57) is inserted into the cross groove (58) and then fixed by spot welding.

6. The device for detecting the hardness of the inner wall of a large pressure vessel according to claim 4, characterized in that: One end of the connector (59) is equipped with a camera module (6) for detecting the internal environment of the pressure vessel.

7. The device for detecting the hardness of the inner wall of a large pressure vessel according to claim 4, characterized in that: The multi-stage telescopic mechanism (7) includes a vertical plate (71), a first-stage telescopic rod (72), a second connecting plate (73), and a second-stage telescopic rod (74). The fixed end of the first-stage telescopic rod (72) is fixedly connected to the vertical plate (71), and the telescopic end of the first-stage telescopic rod (72) is fixedly connected to the second connecting plate (73). The fixed end of the second-stage telescopic rod (74) is fixed to the other end of the second connecting plate (73), and the telescopic end of the second-stage telescopic rod (74) is fixedly connected to the fixed plate (51).

8. The device for detecting the hardness of the inner wall of a large pressure vessel according to claim 1, characterized in that: The height adjustment device (9) is installed on the upper end of the walking base assembly (10). The walking base assembly (10) includes a base plate (101), outriggers (102) and universal locking wheels (103). The outriggers (102) are evenly distributed on the lower surface of the base plate (101), and universal locking wheels (103) are provided at the lower end of the outriggers (102).

9. The device for detecting the hardness of the inner wall of a large pressure vessel according to claim 1, characterized in that: It also includes a data display unit and a storage unit (201), which is electrically connected to the control unit and is used to display the hardness data detected by the hardness detection unit (1) in real time and store the detection data. The data display and storage unit (201) has a data export interface, which makes it convenient to export the stored data to an external device for further analysis and processing.

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