Pressure-bearing special equipment inspection device

Abstract

The utility model relates to the technical field of inspection, especially a kind of pressure-bearing special equipment inspection device, first open rack is slidably connected on guide rod, second recessed groove frame is slidably connected in first open rack, mounting is slidably connected in second recessed groove frame, the side fixed connection of mounting has second spring, pressure sensor is fixedly connected in second recessed groove frame, one end of second spring and pressure sensor extrusion contact, the other side fixed connection of mounting has detection head.The utility model moves to contact with pressure vessel weld after detection head, under the reaction force, detection head compresses second spring by mounting, second spring is extruded deformation, dynamic adjustment contact pressure, avoid because of pressure too big damage detection head or pressure deficiency leads to coupling bad, the elastic deformation of second spring compensates the tiny unevenness of weld surface, guarantee detection whole course coupling stability, reduce signal fluctuation, improve detection precision.

Description

Technical Field

[0001] This utility model relates to the field of inspection technology, and in particular to an inspection device for pressure-bearing special equipment. Background Technology

[0002] Pressure-bearing special equipment refers to sealed equipment used to withstand a certain pressure (internal or external pressure), and is widely used in petroleum, chemical, energy, pharmaceutical and other fields.

[0003] Pressure vessels are a type of highly dangerous special equipment. In the event of a leak, explosion, or other accident, it can cause casualties and significant property damage. Therefore, strength testing of pressure vessels is particularly important. After the vessel is welded, the weld seam needs to be inspected.

[0004] During inspection, the probe is usually driven by a drive mechanism to inspect the weld of the container. However, the weld surface is irregular, and surface protrusions (such as weld beads) cause the probe to be partially suspended, and the coupling agent cannot be completely filled, resulting in sound wave scattering or attenuation. Insufficient probe pressure in concave areas and excessively thick coupling layer reduce the detection sensitivity. The irregular weld surface also leads to poor probe coupling, thereby reducing the accuracy of weld inspection. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where irregular weld surfaces lead to poor probe coupling, thereby reducing the accuracy of weld inspection. This invention proposes a pressure-bearing special equipment inspection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a pressure-bearing special equipment inspection device, including a rotating base, a fixed platform connected to the upper end of the rotating base, a base frame connected to one side of the rotating base, a support frame fixedly connected to the upper end of the base frame, a guide rod fixedly connected between the base frame and the support frame, a first open frame slidably connected to the guide rod, a second grooved frame slidably connected inside the first open frame, an installation component slidably connected inside the second grooved frame, a second spring fixedly connected to one side of the installation component, a pressure sensor fixedly connected inside the second grooved frame, one end of the second spring making contact with the pressure sensor, and a detection head fixedly connected to the other side of the installation component.

[0008] Preferably, the rotating base is coated with an anti-corrosion layer.

[0009] Preferably, the support frame and the base frame are an integral structure.

[0010] Preferably, the mounting component includes a first inclined slider, which is slidably connected to a second groove frame. The first inclined slider is connected to a second spring. A second inclined slider is slidably connected to the upper inclined surface of the first inclined slider. The second inclined slider is fixedly connected to a detection head. A top plate is fixedly connected to the upper end of the first inclined slider. A first spring is connected to the lower surface of the top plate. One end of the first spring is fixedly connected to the upper end of the second inclined slider.

[0011] Preferably, an epoxy resin lubricating layer is sprayed onto the contact surfaces of the first inclined slider and the second inclined slider.

[0012] Preferably, a cleaning mechanism is connected to the second groove frame. The cleaning mechanism includes a connecting plate. A sliding groove is provided on the second groove frame. The connecting plate is slidably connected to the sliding groove. A third spring is fixedly connected inside the sliding groove. One end of the third spring is fixedly connected to the connecting plate. A fixing seat is fixedly connected to one end of the connecting plate. The fixing seat is located below the detection head. A cleaning block is fixedly connected to the fixing seat.

[0013] Preferably, the connecting plate is arranged parallel to the detection head, and the cleaning block is located outside the detection head.

[0014] Preferably, the cleaning block is a sponge cleaning block.

[0015] The present invention provides an inspection device for pressure-bearing special equipment, the advantages of which are as follows:

[0016] After the detection head moves to contact the weld of the pressure vessel, under the reaction force, the detection head compresses the second spring through the mounting component. The second spring is deformed by compression, dynamically adjusting the contact pressure to avoid damage to the detection head due to excessive pressure or poor coupling due to insufficient pressure. The elastic deformation of the second spring compensates for minor unevenness on the weld surface, ensuring stable coupling throughout the detection process, reducing signal fluctuations, and improving detection accuracy. Attached Figure Description

[0017] Figure 1 This utility model provides a structural schematic diagram of an inspection device for pressure-bearing special equipment. Figure 1 ;

[0018] Figure 2 This utility model provides a structural schematic diagram of an inspection device for pressure-bearing special equipment. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the connection between the first open frame and the cleaning mechanism in an inspection device for pressure-bearing special equipment proposed in this utility model;

[0020] Figure 4This is a cross-sectional structural diagram of the connection between the first open frame and the cleaning mechanism in an inspection device for pressure-bearing special equipment proposed in this utility model;

[0021] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A above.

[0022] In the diagram: 1. Rotating base; 2. Fixed platform; 3. Base frame; 4. Support frame; 5. Guide rod; 6. First open frame; 7. Drive mechanism; 8. Second groove frame; 9. Mounting component; 10. Pressure sensor; 11. Second spring; 12. Detection head; 13. Electric telescopic rod; 14. Cleaning mechanism; 91. First inclined slider; 92. Second inclined slider; 93. Top plate; 94. First spring; 141. Connecting plate; 142. Slide groove; 143. Third spring; 144. Fixed seat; 145. Cleaning block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1: Refer to Figure 1-3 A pressure-bearing special equipment inspection device includes a rotating base 1 coated with an anti-corrosion layer. A fixed platform 2 is connected to the upper end of the rotating base 1, and a base frame 3 is connected to one side of the rotating base 1. A support frame 4 is fixedly connected to the upper end of the base frame 3. The support frame 4 and the base frame 3 are an integral structure. A guide rod 5 is fixedly connected between the base frame 3 and the support frame 4. A first open frame 6 is slidably connected to the guide rod 5. A drive mechanism 7 is connected to the support frame 4 to drive the first open frame 6 to move vertically. A second grooved frame 8 is slidably connected inside the first open frame 6. An electric telescopic rod 13 is connected to the first open frame 6 to drive the second grooved frame 8 to move horizontally. An installation component 9 is slidably connected inside the second grooved frame 8. A second spring 11 is fixedly connected to one side of the installation component 9. A pressure sensor 10 is fixedly connected inside the second grooved frame 8. One end of the second spring 11 is in contact with the pressure sensor 10. A detection head 12 is fixedly connected to the other side of the installation component 9.

[0025] Work process:

[0026] After the pressure vessel is fixed on the fixed platform 2, the rotating base 1 automatically adjusts the angle so that the weld is precisely aligned with the inspection head 12, thereby reducing manual adjustment time and improving inspection efficiency.

[0027] After the electric telescopic rod 13 is started, it pushes the second groove frame 8 to move a preset distance toward the pressure vessel. The second groove frame 8 drives the mounting part 9 to move through the second spring 11, which in turn drives the detection head 12 to move. When the detection head 12 moves to contact the weld of the pressure vessel, under the reaction force, the detection head 12 compresses the second spring 11 through the mounting part 9. The second spring 11 is deformed by compression, dynamically adjusting the contact pressure to avoid damage to the detection head 12 due to excessive pressure or poor coupling due to insufficient pressure. The elastic deformation of the second spring 11 compensates for the slight unevenness of the weld surface, ensuring stable coupling throughout the detection process and reducing signal fluctuations.

[0028] The elastic force generated by the mounting component 9 keeps the detection head 12 in stable contact pressure with the weld. The elastic force of the second spring 11 also acts on the pressure sensor 10. When the detection value of the pressure sensor 10 reaches the set threshold, the electric telescopic rod 13 stops advancing. After the drive mechanism 7 is started, it drives the first open frame 6 to reciprocate in the vertical direction, so that the detection head 12 scans and detects the weld of the pressure vessel.

[0029] Example 2: When the first open frame 6 moves, driving the detection head 12 to inspect the weld of the pressure vessel, if a bulge appears on the weld surface, the detection head 12 cannot adapt to the slope change. (Refer to...) Figure 5 As another preferred embodiment of this utility model, the difference from embodiment 1 is that the mounting component 9 includes a first inclined slider 91, the first inclined slider 91 is slidably connected to the second groove frame 8, the first inclined slider 91 is connected to the second spring 11, the upper inclined surface of the first inclined slider is slidably connected to the second inclined slider 92, the contact surface of the first inclined slider 91 and the second inclined slider 92 is sprayed with an epoxy resin lubricating layer, the second inclined slider 92 is fixedly connected to the detection head 12, the upper end of the first inclined slider 91 is fixedly connected to the top plate 93, the lower surface of the top plate 93 is connected to the first spring 94, and one end of the first spring 94 is fixedly connected to the upper end of the second inclined slider 92;

[0030] When the detection head 12 encounters a protrusion during its vertical movement, the detection head 12 drives the second inclined slider 92 to slide upward. The second inclined slider 92 retracts a certain distance towards the second groove frame 8. The upward movement of the second inclined slider 92 compresses the first spring 94. After being compressed, the first spring 94 generates elastic force. After the detection head 12 passes through the protrusion, the elastic force generated by the first spring 94 drives the detection head 12 to move and reset, which can effectively adapt to the slope changes of the detection surface.

[0031] Example 3: When the detection head 12 slides on the weld of the pressure vessel, there is significant friction. (Refer to...) Figure 4As another preferred embodiment of this utility model, the difference from embodiment 1 is that a cleaning mechanism 14 is connected to the second groove frame 8. The cleaning mechanism 14 includes a connecting plate 141. A sliding groove 142 is provided on the second groove frame 8. The connecting plate 141 is slidably connected to the sliding groove 142. The connecting plate 141 is arranged parallel to the detection head 12. A third spring 143 is fixedly connected in the sliding groove 142. One end of the third spring 143 is fixedly connected to the connecting plate 141. A fixing seat 144 is fixedly connected to one end of the connecting plate 141. The fixing seat 144 is located below the detection head 12. A cleaning block 145 is fixedly connected to the fixing seat 144. The cleaning block 145 is a sponge cleaning block. The cleaning block 145 is located on the outside of the detection head 12.

[0032] When the second groove frame 8 moves toward the pressure vessel, it drives the connecting plate 141 to move synchronously. The connecting plate 141 drives the cleaning block 145 to move through the fixed seat 144. After the cleaning block 145 contacts the pressure vessel, it pushes the fixed seat 144 to retract under the reaction force. The fixed seat 144 compresses the third spring 143 through the connecting plate 141. The restoring force generated by the third spring 143 is transmitted to the fixed seat 144 through the connecting plate 141, so that the cleaning block 145 and the pressure vessel maintain a stable contact pressure. At the same time, when the first open frame 6 moves in the vertical direction, it drives the connecting plate 141 to move synchronously. The fixed seat 144 drives the cleaning block 145 to move along the surface of the container, realizing the cleaning function of the detection area. This can effectively reduce the frictional resistance between the detection head 12 and the weld of the pressure vessel.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A kind of pressure type special equipment inspection device, including rotating base (1), the upper end of rotating base (1) is connected with fixed platform (2), one side of rotating base (1) is connected with underframe (3), the upper end of underframe (3) is fixedly connected with support frame (4), it is characterized by, in: A guide rod (5) is fixedly connected between the base frame (3) and the support frame (4). A first open frame (6) is slidably connected to the guide rod (5). A second groove frame (8) is slidably connected inside the first open frame (6). An installation piece (9) is slidably connected inside the second groove frame (8). A second spring (11) is fixedly connected to one side of the installation piece (9). A pressure sensor (10) is fixedly connected inside the second groove frame (8). One end of the second spring (11) is pressed against the pressure sensor (10). A detection head (12) is fixedly connected to the other side of the installation piece (9).

2. The pressure equipment category special inspection device according to claim 1, characterized by, The rotating base (1) is coated with an anti-corrosion layer.

3. The inspection device for pressure-bearing special equipment according to claim 1, characterized in that, The support frame (4) and the base frame (3) are an integral structure.

4. The pressure equipment category special inspection device according to claim 1, characterized by, The mounting component (9) includes a first inclined slider (91), which is slidably connected to the second groove frame (8). The first inclined slider (91) is connected to a second spring (11). A second inclined slider (92) is slidably connected to the upper inclined surface of the first inclined slider. The second inclined slider (92) is fixedly connected to the detection head (12). A top plate (93) is fixedly connected to the upper end of the first inclined slider (91). A first spring (94) is connected to the lower surface of the top plate (93). One end of the first spring (94) is fixedly connected to the upper end of the second inclined slider (92).

5. The pressure equipment category special inspection device according to claim 4, characterized by An epoxy resin lubricating layer is sprayed on the contact surface between the first inclined slider (91) and the second inclined slider (92).

6. The pressure equipment category special inspection apparatus according to claim 1, characterized by, A cleaning mechanism (14) is connected to the second groove frame (8). The cleaning mechanism (14) includes a connecting plate (141). A sliding groove (142) is provided on the second groove frame (8). The connecting plate (141) is slidably connected to the sliding groove (142). A third spring (143) is fixedly connected inside the sliding groove (142). One end of the third spring (143) is fixedly connected to the connecting plate (141). One end of the connecting plate (141) is fixedly connected to a fixing seat (144). The fixing seat (144) is located below the detection head (12). A cleaning block (145) is fixedly connected to the fixing seat (144).

7. The pressure equipment category special inspection device according to claim 6, characterized by The connecting plate (141) is arranged parallel to the detection head (12), and the cleaning block (145) is located outside the detection head (12).

8. The pressure equipment category special inspection device according to claim 7, characterized by The cleaning block (145) is a sponge cleaning block.

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