Arrangement device for acoustic emission detection sensors of normal-pressure metal storage tank

Abstract

The utility model relates to the technical field of storage tank detection, in particular to a normal-pressure metal storage tank acoustic emission detection sensor arrangement device which comprises a tank body used for storing raw oil and a base arranged at the bottom of the tank body, and an arrangement mechanism used for installing a plurality of acoustic emission detection sensors is arranged at the bottom of the tank body. The arrangement mechanism comprises a track ring arranged at the bottom of the tank body, a plurality of positioning seats arranged on the track ring and distributed in a circumferential array, and sensors arranged at the tops of the positioning seats, and movable clamping rings matched with the track ring are arranged at the bottoms of one sides of the positioning seats; limiting clamping rods detachably connected with the positioning base are fixed to the two ends of the top of the movable clamping ring. According to the arrangement device, the situation that the arrangement efficiency of detection personnel is affected due to the fact that the arrangement operation of the acoustic emission detection sensors is troublesome can be avoided, the arrangement of a plurality of emission detection sensors is more convenient, the operation inconvenience of the detection personnel is reduced, and the practicability of the arrangement device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tank detection, in particular to a sensor arrangement device for acoustic emission detection of a normal pressure metal storage tank. Background Art

[0002] Atmospheric pressure storage tanks are widely used storage equipment in petrochemical production, and are used to store various raw oils in the oil refining industry. After long-term use of the tank, corrosion defects will appear on the bottom plate, resulting in reduced material strength, local micro-deformation under the action of liquid level, and peeling and shedding of corrosion products, causing leakage of the tank. At present, most atmospheric pressure storage tanks are detected using acoustic emission detection sensors. Several sensors are installed in an array on the lower part of the outer wall of the tank. If the bottom plate of the tank is corroded or leaking, the sensor will receive the acoustic emission signal, and then evaluate the corrosion condition of the tank bottom structure through signal analysis. During the detection process, after the position of the acoustic emission detection sensor is manually determined, it is necessary to fix it by opening holes or screws. The operation process is relatively complicated, which brings great trouble to the detection personnel in arranging the sensors, inconveniences for the detection personnel to use, and it is difficult to meet the actual use needs. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a sensor arrangement device for acoustic emission detection of atmospheric pressure metal storage tanks, which solves the problem that the current arrangement of acoustic emission detection sensors is complicated and brings inconvenience to detection personnel.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A normal pressure metal storage tank acoustic emission detection sensor arrangement device comprises a tank body for storing crude oil and a base arranged at the bottom of the tank body, wherein the bottom of the tank body is provided with an arrangement mechanism for installing a plurality of acoustic emission detection sensors;

[0006] The arrangement mechanism includes a track ring arranged at the bottom of the tank body, a plurality of positioning seats arranged on the track ring and distributed in a circular array, and a sensor arranged on the top of the positioning seat. A movable clamping ring matching the track ring is arranged at the bottom of one side of the positioning seat, and limiting clamping rods detachably connected to the positioning seat are fixed at both ends of the top of the movable clamping ring. A locking component for fixing the sensor is arranged on the positioning seat. The arrangement mechanism also includes a positioning component arranged on the positioning seat for positioning it.

[0007] Furthermore, the locking component includes a connecting plate fixedly arranged at the bottom of the sensor, and a limiting groove opened on the positioning seat, and the top of the limiting groove matches the connecting plate, a connecting cross bar is provided on one side of the connecting plate, and a threaded cross shaft is provided in the middle of the connecting cross bar and is rotatably connected to the positioning seat through a bearing, and the threaded cross shaft passes through the connecting cross bar and is threadedly connected to the connecting cross bar, and a bevel gear is fixed to one end of the threaded cross shaft.

[0008] Furthermore, positioning rods are fixed at both ends of the connecting cross bar, and positioning slots matching the two positioning rods are respectively opened at both ends of the connecting plate.

[0009] Furthermore, the positioning component includes a movable bracket slidably arranged at the bottom of the inner side of the limiting groove, and the two ends of the bottom of the movable bracket respectively pass through the two sides of the positioning seat and are slidably connected thereto, and a suction cup detachably arranged at the two ends of the bottom of the movable bracket, and a threaded vertical axis is arranged at the top of the movable bracket, and the threaded vertical axis passes through the top of the movable bracket and is threadedly connected thereto.

[0010] Furthermore, a bevel gear 2 meshing with the bevel gear 1 is fixed on the top of the threaded vertical shaft, and a screw cap is fixed on the bottom of the threaded vertical shaft penetrating through the positioning seat.

[0011] Furthermore, return springs are respectively arranged on both sides of the bottom of the threaded vertical shaft, and the top of the return spring is fixedly connected to the movable bracket.

[0012] Furthermore, a plurality of connection seats distributed in a circumferential array are fixed to the bottom of the track ring, and the connection seats are detachably connected to the tank body.

[0013] The utility model provides a sensor arrangement device for acoustic emission detection of atmospheric pressure metal storage tanks, which has the following beneficial effects compared with the prior art:

[0014] 1. A plurality of sensors are installed on the bottom plate of the tank body by setting an arrangement mechanism. According to the actual installation position, the movable clamp ring is slid on the track ring. After the sensor is moved to the specified position, the positioning seat is fixed on the base through the positioning component, so that the position arrangement of the sensor is completed. The structure is reasonable, and the situation in which the operation trouble of arranging the acoustic emission detection sensor affects the arrangement efficiency of the detection personnel is avoided. It is conducive to making the arrangement of a plurality of emission detection sensors more convenient, reducing the inconvenience of the detection personnel in operation, and improving the practicality of the arrangement device.

[0015] 2. The sensor is fixed on the positioning seat by setting a locking component. The sensor is positioned while the positioning seat is fixed. After the detection is completed, the positioning seat and the sensor are disassembled at the same time, so that the operation is more flexible in actual use, which is helpful for the detection personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial sectional view of the front side of the utility model;

[0018] Figure 3 This is an exploded view of the structure of the locking component of the utility model;

[0019] Figure 4 It is a structural explosion diagram of the positioning component of the utility model.

[0020] In the figure: 1. tank body; 2. base;

[0021] 3. Arrangement mechanism; 31. Track ring; 32. Positioning seat; 33. Sensor; 34. Active clamp ring; 35. Limiting clamp rod; 36. Connecting seat;

[0022] 37, locking component; 371, connecting plate; 372, limiting groove; 373, connecting cross bar; 374, positioning rod; 375, positioning slot; 376, threaded cross shaft;

[0023] 38. Positioning component; 381. Movable bracket; 382. Suction cup; 383. Threaded vertical shaft; 384. Screw cap; 385. Return spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] refer to Figure 1 - Figure 4 , the bottom plate of the atmospheric pressure metal storage tank is detected by using several acoustic emission detection sensors arranged in an array to prevent losses and safety hazards caused by corrosion or leakage of the tank bottom plate. In order to arrange the acoustic emission detection sensors more conveniently and reduce the inconvenience of detection personnel in operation, the utility model provides an arrangement device for acoustic emission detection sensors of atmospheric pressure metal storage tanks, including a tank body 1 for storing crude oil, and a base 2 arranged at the bottom of the tank body 1. The bottom of the tank body 1 is provided with an arrangement mechanism 3 for installing four acoustic emission detection sensors. The number of acoustic emission detection sensors can be set to four or more. Four acoustic emission detection sensors are arranged in the utility model.

[0026] The arrangement mechanism 3 is used to install several sensors on the bottom plate of the tank body 1. According to the actual installation position, the movable clamping ring 34 is slid on the track ring 31. After the sensor is moved to the specified position, the positioning seat 32 is fixed on the base 2 through the positioning component 38, so that the position arrangement of the sensor is completed, including the track ring 31 arranged at the bottom of the tank body 1, four positioning seats 32 arranged on the track ring 31 and distributed in a circumferential array, and a sensor 33 arranged on the top of the positioning seat 32. An movable clamping ring 34 matching the track ring 31 is arranged at the bottom of one side of the positioning seat 32. The movable clamping ring 34 is set to be made of soft rubber material so that it can be clamped On the track ring 31, disassembly is also more convenient. Limiting rods 35 detachably connected to the positioning seat 32 are fixed at both ends of the top of the movable clamping ring 34. A locking component 37 for fixing the sensor 33 is arranged on the positioning seat 32. The arrangement mechanism 3 also includes a positioning component 38 arranged on the positioning seat 32 for positioning it. Four connecting seats 36 distributed in a circular array are fixed at the bottom of the track ring 31, and the connecting seats 36 are detachably connected to the tank body 1. The track ring 31 is fixed to the tank body 1 through a plurality of connecting seats 36 without disassembly. It can be used when detection is needed, and disassembly is also more convenient when the detection position needs to be changed.

[0027] like Figure 3 As shown, specifically, the locking component 37 includes a connecting plate 371 fixedly arranged at the bottom of the sensor 33, and a limiting groove 372 opened on the positioning seat 32, and the top of the limiting groove 372 matches the connecting plate 371, a connecting cross bar 373 is provided on one side of the connecting plate 371, and positioning plug rods 374 are respectively fixed at both ends of the connecting cross bar 373, and positioning slots 375 matching the two positioning plug rods 374 are respectively opened at both ends of the connecting plate 371, and a threaded horizontal shaft 376 rotatably connected to the positioning seat 32 through a bearing is provided in the middle of the connecting cross bar 373, and the threaded horizontal shaft 376 passes through the connecting cross bar 373 and is threadedly connected to it, and a bevel gear 1 is fixed to one end of the threaded horizontal shaft 376. After the bottom plate inspection of the tank body 1 is completed, the positioning seat 32 and the sensor 33 can be disassembled at the same time, so that the operation is more flexible in actual use.

[0028] like Figure 4As shown, specifically, by fixing the positioning seat 32 on the base 2, the sensor 33 is positioned, which helps the sensor 33 to be more accurate during detection. The positioning component 38 includes a movable bracket 381 slidably arranged at the bottom of the inner side of the limiting groove 372, and the two ends of the bottom of the movable bracket 381 respectively penetrate the two sides of the positioning seat 32 and are slidably connected thereto, and suction cups 382 detachably arranged at the two ends of the bottom of the movable bracket 381, a threaded vertical shaft 383 is arranged at the top of the movable bracket 381, and the threaded vertical shaft 383 penetrates the top of the movable bracket 381 and is threadedly connected thereto, a bevel gear 2 meshing with a bevel gear 1 is fixed at the top of the threaded vertical shaft 383, a screw cap 384 is fixed at the bottom of the threaded vertical shaft 383 penetrating the positioning seat 32, and a return spring 385 is respectively arranged on both sides of the bottom of the threaded vertical shaft 383, and the top of the return spring 385 is fixedly connected to the movable bracket 381.

[0029] During actual use of the arrangement device, the movable clamping ring 34 is first clamped on the track ring 31, and the movable clamping ring 34 is moved to move the positioning seat 32 to the specified detection position, and then the connecting plate 371 at the bottom of the sensor 33 is placed in the top of the limiting groove 372, and then the screw cap 384 is rotated. The screw cap 384 drives the threaded vertical shaft 383 at its top to rotate, and the threaded vertical shaft 383 drives the movable bracket 381 thereon to move downward, and the movable bracket 381 drives the suction cups 382 at both ends of the bottom to move downward, and the suction cups 382 move until they are in contact with the top surface of the base 2, thereby being adsorbed on the base 2, thereby fixing the positioning seat 32.

[0030] At the same time, the threaded vertical shaft 383 drives the bevel gear 2 on its top to rotate, the bevel gear 2 drives the bevel gear 1 on one side to rotate, the bevel gear 1 drives the threaded horizontal shaft 376 at its axis to rotate, the threaded horizontal shaft 376 drives the connecting cross bar 373 to move, the connecting cross bar 373 drives the positioning rods 374 at both ends to move, the two positioning rods 374 are respectively inserted into the two positioning slots 375, so as to fix the connecting plate 371 on the positioning seat 32, and then the bottom plate of the tank body 1 is detected by the sensor 33.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sensor arrangement device for detecting acoustic emission of a normal pressure metal storage tank, comprising a tank body (1) for storing crude oil, and a base (2) arranged at the bottom of the tank body (1), Features: The bottom of the tank body (1) is provided with an arrangement mechanism (3) for installing a plurality of acoustic emission detection sensors; The arrangement mechanism (3) comprises a track ring (31) arranged at the bottom of the tank body (1), a plurality of positioning seats (32) arranged on the track ring (31) and distributed in a circumferential array, and a sensor (33) arranged on the top of the positioning seat (32); a movable clamping ring (34) matching the track ring (31) is arranged at the bottom of one side of the positioning seat (32); limiting clamping rods (35) detachably connected to the positioning seat (32) are fixed at both ends of the top of the movable clamping ring (34); a locking component (37) for fixing the sensor (33) is arranged on the positioning seat (32); and the arrangement mechanism (3) further comprises a positioning component (38) arranged on the positioning seat (32) for positioning it.

2. According to claim 1, a sensor arrangement device for detecting acoustic emission of atmospheric pressure metal storage tanks, Features: The locking component (37) comprises a connecting plate (371) fixedly arranged at the bottom of the sensor (33), and a limiting groove (372) provided on the positioning seat (32), and the top of the limiting groove (372) matches the connecting plate (371), a connecting cross bar (373) is provided on one side of the connecting plate (371), a threaded cross shaft (376) rotatably connected to the positioning seat (32) through a bearing is provided in the middle of the connecting cross bar (373), and the threaded cross shaft (376) passes through the connecting cross bar (373) and is threadedly connected thereto, and a bevel gear 1 is fixed to one end of the threaded cross shaft (376).

3. A sensor arrangement device for detecting acoustic emission of atmospheric pressure metal storage tanks according to claim 2, Features: Positioning rods (374) are fixed at both ends of the connecting crossbar (373), and positioning slots (375) matching the two positioning rods (374) are respectively provided at both ends of the connecting plate (371).

4. The atmospheric pressure metal storage tank acoustic emission detection sensor arrangement device according to claim 2, Features: The positioning component (38) comprises a movable bracket (381) slidably arranged at the bottom of the inner side of the limiting groove (372), and the two ends of the bottom of the movable bracket (381) respectively penetrate the two sides of the positioning seat (32) and are slidably connected thereto, and a suction cup (382) detachably arranged at the two ends of the bottom of the movable bracket (381), and a threaded vertical shaft (383) is arranged at the top of the movable bracket (381), and the threaded vertical shaft (383) penetrates the top of the movable bracket (381) and is threadedly connected thereto.

5. The atmospheric pressure metal storage tank acoustic emission detection sensor arrangement device according to claim 4, Features: A bevel gear 2 meshing with the bevel gear 1 is fixed on the top of the threaded vertical shaft (383), and a screw cap (384) is fixed on the bottom of the threaded vertical shaft (383) passing through the positioning seat (32).

6. The atmospheric pressure metal storage tank acoustic emission detection sensor arrangement device according to claim 4, Features: Reset springs (385) are respectively arranged on both sides of the bottom of the threaded vertical shaft (383), and the top of the reset spring (385) is fixedly connected to the movable bracket (381).

7. The atmospheric pressure metal storage tank acoustic emission detection sensor arrangement device according to claim 1, Features: A plurality of connection seats (36) distributed in a circumferential array are fixed to the bottom of the track ring (31), and the connection seats (36) are detachably connected to the tank body (1).

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