Fixing device of low-temperature ethylene spherical tank pulsed eddy current detection probe

Abstract

The utility model provides a fixing device for a pulsed eddy current detection probe of a low-temperature ethylene spherical tank, which belongs to the technical field of pulsed eddy current detection probe installation and comprises a base, a bearing plate and a positioning and adjusting assembly are fixedly connected to the upper surface of the base, and the positioning and adjusting assembly comprises a positioning assembly, an adjusting assembly and a fixing assembly. The positioning assembly comprises two fixing plates fixedly connected to the side wall of the bearing plate. According to the utility model, through the arrangement of the positioning assembly, the position of the pulsed eddy current detection probe can be accurately adjusted, the actual requirements can be better met, through the arrangement of the adjusting assembly, the detection angle of the pulsed eddy current detection probe can be adjusted, the practicability of the device is improved, and through the arrangement of the fixing assembly, the detection accuracy is improved. The pulsed eddy current detection probe body can be efficiently and conveniently clamped and fixed, so that the subsequent test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulse eddy current detection probe installation, in particular to a fixing device for a pulse eddy current detection probe of a low-temperature ethylene spherical tank. Background Art

[0002] During the RBI online inspection of spherical tanks, the wall thickness of low-temperature ethylene spherical tanks cannot be measured by the previous wall thickness measurement method because the low-temperature spherical tanks are equipped with a cold insulation layer. The surface of the tank wall will quickly freeze after the cold insulation layer is removed. It is theoretically feasible to measure the thickness immediately, but the implementation process is too risky. Pulse eddy current is a non-destructive testing technology for wall thickness measurement and is widely used in online monitoring and inspection of industrial pipelines and pressure vessels. In recent years, studies have used pulse eddy current detection for fixed-point monitoring of severely corroded pipelines in refining and chemical plants, and have achieved certain results. Therefore, a pulse eddy current detection probe fixture is needed for use in the detection process.

[0003] After searching, the patent document with publication number CN212540233U discloses a pulse eddy current detection probe fixing device with positioning function, including a mounting seat, a turntable arranged above the mounting seat, and a bracket arranged above the turntable. A bearing disk is nested at the center of the upper surface of the mounting seat, and the bottom of the turntable is sleeved in the bearing disk; there are two brackets in total. The use of this new type can facilitate multi-angle detection of the pulse eddy current detection probe.

[0004] The above prior art often has the following problems when used:

[0005] When the existing pulsed eddy current detection probe fixing device is in use, it is impossible to conveniently adjust the position and detection angle of the pulsed eddy current detection probe, which makes the test have certain limitations and cannot meet the needs of the staff. At the same time, the fixing operation of the pulsed eddy current detection probe is also relatively cumbersome, affecting the efficient progress of the test. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a fixing device for a pulse eddy current detection probe of a low-temperature ethylene spherical tank.

[0007] The embodiment of the utility model provides a fixing device for a pulse eddy current detection probe of a low-temperature ethylene spherical tank, comprising:

[0008] A base, wherein a bearing plate is fixedly connected to an upper surface of the base;

[0009] A positioning and adjustment component, the positioning and adjustment component includes a positioning component, an adjustment component and a fixing component, the positioning component includes two fixing plates fixedly connected to the side walls of the supporting plate, a No. 1 threaded rod is provided on the side of the supporting plate, the No. 1 threaded rod is rotatably connected to the side walls of the two fixing plates through a bearing, a No. 1 nut is threadedly connected to the No. 1 threaded rod, the side wall of the supporting plate is provided with a limiting groove, a limiting block is slidably connected in the limiting groove, and the side wall of the limiting block is fixedly connected to the side wall of the No. 1 nut.

[0010] Furthermore, the adjustment assembly includes a No. 1 mounting plate fixedly connected to the side wall of the limit block, a connecting plate fixedly connected to the bottom of the side wall of the No. 1 mounting plate, a No. 2 mounting plate hinged to the side wall of the connecting plate, a No. 2 threaded rod rotatably connected to the upper surface of the connecting plate through a bearing, a No. 2 nut threadedly connected to the No. 2 threaded rod, a connecting rod hinged to the side wall of the No. 2 nut, and the bottom end of the connecting rod is hinged to the side wall of the No. 2 mounting plate.

[0011] Further, the fixing assembly includes an arc-shaped fixing plate fixedly connected to the side wall of the second mounting plate, an arc-shaped movable plate is provided above the arc-shaped fixing plate, and two guide rods are fixedly connected to the bottom surface of the arc-shaped movable plate, and the two guide rods are both slidably connected to the bottom surface of the arc-shaped fixing plate, and the bottom ends of the two guide rods are fixedly connected to the bottom plate, and springs are fixedly connected between the two bottom plates and the arc-shaped fixing plate.

[0012] Furthermore, the two guide rods are respectively located on two sides of the arc-shaped movable plate, and the two springs are respectively sleeved on the two guide rods.

[0013] Furthermore, the connecting rod is located between the first mounting plate and the second mounting plate, and the hinge between the connecting rod and the second mounting plate is located at the center of the side wall thereof.

[0014] Furthermore, a knob is fixedly connected to any end of the No. 1 threaded rod and the top end of the No. 2 threaded rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, by setting a positioning component, the position of the pulse eddy current detection probe can be adjusted more accurately, while taking convenience into account and better meeting actual needs. By setting an adjustment component, the detection angle of the pulse eddy current detection probe can be adjusted, which can be applied to more usage scenarios and improve the practicality of the device. By setting a fixing component, the pulse eddy current detection probe body can be clamped and fixed efficiently and conveniently, thereby improving the efficiency of subsequent tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the three-dimensional structure of the fixing device of the pulse eddy current detection probe for the low-temperature ethylene spherical tank described in the embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure from another perspective of the fixing device of the pulse eddy current detection probe for the low-temperature ethylene spherical tank described in the embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure from another perspective of the fixing device of the pulse eddy current detection probe for the low-temperature ethylene spherical tank described in the embodiment of the utility model.

[0020] In the above drawings: 1 base, 2 bearing plate, 3 fixing plate, 4 No. 1 threaded rod, 5 No. 1 nut, 6 limit groove, 7 limit block, 8 No. 1 mounting plate, 9 connecting plate, 10 No. 2 mounting plate, 11 No. 2 threaded rod, 12 No. 2 nut, 13 connecting rod, 14 arc-shaped fixing plate, 15 arc-shaped movable plate, 16 guide rod, 17 bottom plate, 18 spring. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figure 1-Figure 3 As shown, the embodiment of the utility model provides a fixing device for a pulse eddy current detection probe of a low-temperature ethylene spherical tank, comprising:

[0023] A base 1, a bearing plate 2 is fixedly connected to the upper surface of the base 1, and a positioning and adjusting component is included. The positioning and adjusting component includes a positioning component, an adjusting component and a fixing component. The positioning component includes two fixing plates 3 fixedly connected to the side walls of the bearing plate 2. A No. 1 threaded rod 4 is provided on the side of the bearing plate 2. The No. 1 threaded rod 4 is rotatably connected to the side walls of the two fixing plates 3 through a bearing. A No. 1 nut 5 is threadedly connected to the No. 1 threaded rod 4. A limiting groove 6 is provided on the side wall of the bearing plate 2. A limiting block 7 is slidably connected in the limiting groove 6. The side wall of the limiting block 7 is fixedly connected to the side wall of the No. 1 nut 5. The adjusting component includes a No. 1 mounting plate 8 fixedly connected to the side wall of the limiting block 7. A connecting plate 9 is fixedly connected to the bottom of the side wall of the No. 1 mounting plate 8, and a No. 2 mounting plate 10 is hinged to the side wall of the connecting plate 9. A No. 2 threaded rod 11 is rotatably connected to the upper surface of the connecting plate 9 through a bearing, and a No. 2 nut 12 is threadedly connected to the No. 2 threaded rod 11. A connecting rod 13 is hinged to the side wall of the No. 2 nut 12, and the bottom end of the connecting rod 13 is hinged to the side wall of the No. 2 mounting plate 10. The connecting rod 13 is located between the No. 1 mounting plate 8 and the No. 2 mounting plate 10, and the hinge between the connecting rod 13 and the No. 2 mounting plate 10 is located at the center of its side wall. Knobs are fixedly connected to either end of the No. 1 threaded rod 4 and the top of the No. 2 threaded rod 11 for easy adjustment by the staff;

[0024] The fixing assembly includes an arc-shaped fixing plate 14 fixedly connected to the side wall of the second mounting plate 10, an arc-shaped movable plate 15 is arranged above the arc-shaped fixing plate 14, and two guide rods 16 are fixedly connected to the bottom surface of the arc-shaped movable plate 15, and the two guide rods 16 are both slidably connected to the bottom surface of the arc-shaped fixing plate 14, and the bottom ends of the two guide rods 16 are fixedly connected to a bottom plate 17, and springs 18 are fixedly connected between the two bottom plates 17 and the arc-shaped fixing plate 14, and the two guide rods 16 are respectively located on both sides of the arc-shaped movable plate 15, and the two springs 18 are respectively sleeved on the two guide rods 16.

[0025] The detailed working process of the utility model is as follows:

[0026] When in use, when the pulse eddy current detection probe needs to be fixed, first pull the arc moving plate 15 upwards, at this time overcome the elastic force of the two springs 18, pull the arc moving plate 15 apart, and then place the pulse eddy current detection probe between the arc moving plate 15 and the arc fixed plate 14, then release the arc moving plate 15, under the action of the two springs 18, the two bottom plates 17 through the two guide rods 16, so that the arc moving plate 15 always has a tendency to move toward the arc fixed plate 14, thereby achieving the clamping and fixing of the pulse eddy current detection probe between the two. Here, the spring 18 needs a large elastic force to achieve stable fixation, and the operation is convenient and efficient;

[0027] After completing the above, when it is necessary to adjust the position of the pulse eddy current detection probe, turn the No. 1 threaded rod 4 by turning the knob. Under the limit of the limit groove 6 and the limit block 7, the No. 1 nut 5 will be threadedly engaged with the No. 1 threaded rod 4, and then the No. 1 nut 5 will move along the No. 1 threaded rod 4, thereby adjusting the position of the pulse eddy current detection probe. When it is necessary to adjust the angle, turn the No. 2 threaded rod 11 by turning the knob. Similarly, under the limit of the connecting rod 13, the No. 2 nut 12 will be threadedly engaged with the No. 2 threaded rod 11 and move up and down along the No. 2 threaded rod 11, thereby causing the connecting rod 13 to swing, thereby causing the No. 2 mounting plate 10 to swing, and then the angle of the direction of the pulse eddy current detection probe to change, thereby realizing the adjustment of the detection angle. The mutual cooperation of the two components makes the device more practical.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fixing device for pulse eddy current detection probe of low-temperature ethylene spherical tank, characterized in that: include: A base (1), wherein a bearing plate (2) is fixedly connected to an upper surface of the base (1); A positioning and adjustment component, the positioning and adjustment component comprises a positioning component, an adjustment component and a fixing component, the positioning component comprises two fixing plates (3) fixedly connected to the side walls of a bearing plate (2), a No. 1 threaded rod (4) is provided on the side of the bearing plate (2), the No. 1 threaded rod (4) is rotatably connected to the side walls of the two fixing plates (3) through a bearing, a No. 1 nut (5) is threadedly connected to the No. 1 threaded rod (4), a limiting groove (6) is provided on the side wall of the bearing plate (2), a limiting block (7) is slidably connected in the limiting groove (6), and the side wall of the limiting block (7) is fixedly connected to the side wall of the No. 1 nut (5).

2. The fixing device of the pulse eddy current detection probe for low-temperature ethylene spherical tank according to claim 1 is characterized in that: in: The adjustment assembly comprises a No. 1 mounting plate (8) fixedly connected to the side wall of the limit block (7); a connecting plate (9) is fixedly connected to the bottom of the side wall of the No. 1 mounting plate (8); a No. 2 mounting plate (10) is hingedly connected to the side wall of the connecting plate (9); a No. 2 threaded rod (11) is rotatably connected to the upper surface of the connecting plate (9) via a bearing; a No. 2 nut (12) is threadedly connected to the No. 2 threaded rod (11); a connecting rod (13) is hingedly connected to the side wall of the No. 2 nut (12); and the bottom end of the connecting rod (13) is hingedly connected to the side wall of the No. 2 mounting plate (10).

3. The fixing device of the pulse eddy current detection probe for low-temperature ethylene spherical tank according to claim 2 is characterized in that: in: The fixing assembly comprises an arc-shaped fixing plate (14) fixedly connected to the side wall of the second mounting plate (10); an arc-shaped movable plate (15) is arranged above the arc-shaped fixing plate (14); two guide rods (16) are fixedly connected to the bottom surface of the arc-shaped movable plate (15); the two guide rods (16) are both slidably connected to the bottom surface of the arc-shaped fixing plate (14); the bottom ends of the two guide rods (16) are both fixedly connected to a bottom plate (17); and springs (18) are fixedly connected between the two bottom plates (17) and the arc-shaped fixing plate (14).

4. The fixing device of the pulse eddy current detection probe for low-temperature ethylene spherical tank according to claim 3 is characterized in that: in: The two guide rods (16) are respectively located on two sides of the arc-shaped movable plate (15), and the two springs (18) are respectively sleeved on the two guide rods (16).

5. The fixing device of pulse eddy current detection probe for low-temperature ethylene spherical tank according to claim 2 is characterized in that: in: The connecting rod (13) is located between the first mounting plate (8) and the second mounting plate (10), and the hinged portion between the connecting rod (13) and the second mounting plate (10) is located at the center of the side wall thereof.

6. The fixing device of the pulse eddy current detection probe for low-temperature ethylene spherical tank according to claim 2 is characterized in that: in: Any end of the No. 1 threaded rod (4) and the top end of the No. 2 threaded rod (11) are fixedly connected with a knob.

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