Surface crack detection device for pressure-bearing equipment

Abstract

The utility model discloses a pressure-bearing equipment surface crack detection device. The pressure-bearing equipment surface crack detection device comprises a plurality of adsorption parts, a guide assembly, an actuating mechanism, a spraying part, a storage box and a magnetic defect detector. The guiding assembly comprises a fixing rod and two sliding rails, the two sliding rails are arranged in parallel, the ends of the two sliding rails are fixedly connected with adsorption parts, and the two ends of the fixing rod are connected to the two sliding rails. The actuating mechanism is connected to the two sliding rails and is configured to move on the two sliding rails. The spraying piece is fixedly connected to the actuating mechanism, and a water outlet hole of the spraying piece faces the inner sides of the two sliding rails. The storage box communicates with the spraying piece and is used for storing the magnetic powder suspension liquid and conveying the magnetic powder suspension liquid to the spraying piece. The magnetic defect detector is detachably connected to the actuating mechanism. The surface crack detection device for the pressure-bearing equipment can automatically spray magnetic powder suspension liquid, and the magnetic powder flaw detector can be driven by the actuating mechanism to perform crack detection in the extension direction of the sliding rail, so that the detection time and the energy of detection personnel are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nondestructive testing, in particular to a kind of surface crack detection device of pressure-bearing equipment. BACKGROUND

[0002] Pressure-bearing equipment refers to special sealed equipment for bearing internal or external pressure such as gas pressure, water pressure and steam pressure, mainly including boiler, pressure vessel and pressure pipeline, and is widely used in energy, chemical industry and other fields. Since pressure-bearing equipment is in high temperature, high pressure and corrosive environment for a long time, it is necessary to detect cracks in pressure-bearing equipment periodically as the most dangerous defect form.

[0003] At present, the detection personnel usually uses magnetic particle flaw detector to detect the surface cracks of pressure-bearing equipment. The detection personnel first sprays magnetic powder suspension to the surface to be detected, and then uses the magnetic particle flaw detector to be close to the surface of pressure-bearing equipment and to be powered on, so that the magnetic powder trace is formed at the crack. However, the detection area detected by the detection personnel using the magnetic particle flaw detector is small after spraying the magnetic powder suspension each time, and the surface area of large pressure-bearing equipment such as boiler is large, so the detection personnel needs to spend a long time and energy to detect large pressure-bearing equipment. CONTENT OF THE INVENTION

[0004] The embodiment of the present application provides a kind of surface crack detection device of pressure-bearing equipment, solve the technical problem that detection personnel needs to spend long time and energy when using magnetic particle flaw detector to detect cracks in large pressure-bearing equipment.

[0005] The surface crack detection device of pressure-bearing equipment provided by the embodiment of the present application comprises: a plurality of suction accessories; a guide assembly, the guide assembly comprises a fixed rod and two slide rails, the two slide rails are arranged in parallel, the ends of the two slide rails are fixedly connected with the suction accessories, and the two ends of the fixed rod are connected to the two slide rails; an actuating mechanism, the actuating mechanism is connected to the two slide rails and is configured to move on the two slide rails; a spray piece, the spray piece is fixedly connected to the actuating mechanism, and the water outlet hole of the spray piece faces the inner side of the two slide rails; a storage box, the storage box is communicated with the spray piece, for storing magnetic powder suspension and conveying magnetic powder suspension to the spray piece; and a magnetic particle flaw detector, the magnetic particle flaw detector is detachably connected to the actuating mechanism.

[0006] In a possible implementation, the actuating mechanism comprises two sliding sleeves, a mounting plate, two motors and two rollers; the two sliding sleeves are respectively slidably sleeved on the two sliding rails, and opposite sides of the mounting plate are respectively fixedly connected to the two sliding sleeves; the two motors are connected to the mounting plate, and rotating shafts of the two motors are perpendicular to the two sliding rails; the two rollers are respectively mounted on the rotating shafts of the two motors, and surfaces of the two rollers are respectively abutted against the two sliding rails; the spraying member is connected to an inner side of the mounting plate facing the two sliding rails, and the magnetic particle flaw detector is detachably connected to the mounting plate.

[0007] In a possible implementation, the actuating mechanism further comprises two first supports; the two first supports are spaced apart and connected to the mounting plate, and the two first supports are at least partially located outside the mounting plate in the extension direction of the two sliding rails; the two motors are respectively connected to portions of the first supports located outside the mounting plate.

[0008] In a possible implementation, the actuating mechanism further comprises a second support; the second support is connected to the mounting plate, and the magnetic particle flaw detector is detachably connected to the second support.

[0009] In a possible implementation, the suction accessory is an electric suction cup.

[0010] In a possible implementation, the two sliding rails are arc-shaped.

[0011] The technical scheme provided in the embodiments of the present application has at least the following technical effects:

[0012] The pressure-bearing equipment surface crack detection device provided in the embodiments of the present application comprises a plurality of suction accessories, a guiding assembly, an actuating mechanism, a spraying member, a storage box and a magnetic particle flaw detector. When a detection personnel uses the pressure-bearing equipment surface crack detection device to detect surface cracks of a large pressure-bearing equipment, the plurality of suction accessories are opened, so that the pressure-bearing equipment surface crack detection device is adsorbed to the surface of the large pressure-bearing equipment, the actuating mechanism drives the spraying member and the magnetic particle flaw detector to move on the two sliding rails, the storage box delivers the magnetic particle suspension to the spraying member, the spraying member sprays the magnetic particle suspension to the surface of the large pressure-bearing equipment, and the magnetic particle flaw detector detects cracks in the region that has been sprayed with the magnetic particle suspension. Therefore, the pressure-bearing equipment surface crack detection device can automatically spray the magnetic particle suspension, and the magnetic particle flaw detector can be driven by the actuating mechanism to detect cracks in the extension direction of the sliding rails, thereby saving the detection time and the energy of the detection personnel. BRIEF DESCRIPTION OF DRAWINGS

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the surface crack detection device for pressure equipment provided in the embodiments of this application;

[0015] Figure 2 This is a schematic diagram of the actuation mechanism connected to two slide rails, as provided in an embodiment of this application.

[0016] Reference numerals: 10-Adsorption component; 20-Guiding assembly; 21-Fixing rod; 22-Slide rail; 30-Actuation mechanism; 31-Sliding sleeve; 32-Mounting plate; 33-Motor; 34-Roller; 35-First bracket; 36-Second bracket; 40-Spraying component; 50-Storage box; 60-Magnetic particle flaw detector. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0019] This application provides a device for detecting surface cracks in pressure-bearing equipment, such as... Figure 1As shown, the surface crack detection device for pressure equipment includes multiple adsorption components 10, a guiding component 20, an actuation mechanism 30, a spray component 40, a storage tank 50, and a magnetic particle flaw detector 60.

[0020] The guiding assembly 20 includes a fixed rod 21 and two slide rails 22 arranged in parallel. Each end of the slide rails 22 is fixedly connected to an adsorption element 10. Both ends of the fixed rod 21 are connected to the two slide rails 22. An actuation mechanism 30 is connected to the two slide rails 22 and configured to move on them. A spray element 40 is fixedly connected to the actuation mechanism 30, and the water outlet of the spray element 40 faces the inside of the two slide rails 22. A storage tank 50 communicates with the spray element 40 and is used to store and supply the magnetic powder suspension to the spray element 40. A magnetic particle flaw detector 60 is detachably connected to the actuation mechanism 30.

[0021] When using this pressure equipment surface crack detection device to detect cracks in large pressure equipment, the inspector first uses multiple adsorption components 10 to adsorb the entire device onto the surface of the large pressure equipment. Then, the storage tank 50 is powered on, causing it to supply magnetic powder suspension to the spray component 40, which sprays the suspension onto the surface of the equipment. Next, the actuator 30 is controlled to move along two slide rails 22. When the magnetic particle flaw detector 60 moves to the area where the suspension has been sprayed, the actuator 30 stops moving and the detector operates. Then, the magnetic particle flaw detector 60 stops operating and the actuator 30 moves along the slide rails 22. Finally, the above process is repeated until the actuator 30 moves from one end of the slide rail 22 to the other.

[0022] It should be noted that the start and stop of the actuator 30, as well as the start and stop of the magnetic particle flaw detector 60, can be controlled manually by the inspection personnel by switching the power on and off, or can be automatically controlled by control devices such as programmable logic controllers (PLCs).

[0023] Therefore, the pressure equipment surface crack detection device provided in this application embodiment can automatically spray magnetic powder suspension, and the magnetic powder flaw detector 60 can perform crack detection in the extension direction of the slide rail 22 under the drive of the actuation mechanism 30, saving detection time and the energy of the detection personnel.

[0024] like Figure 1 and Figure 2As shown in this embodiment, the actuation mechanism 30 includes two sliding sleeves 31, a mounting plate 32, two motors 33, and two rollers 34. The two sliding sleeves 31 are slidably fitted onto the two slide rails 22, and opposite sides of the mounting plate 32 are fixedly connected to the two sliding sleeves 31. The two motors 33 are connected to the mounting plate 32, and their shafts are orthogonal to the two slide rails 22. The two rollers 34 are respectively mounted on the shafts of the two motors 33, and their surfaces abut against the two slide rails 22. The spray element 40 is connected to the inner side of the mounting plate 32 facing the two slide rails 22, and the magnetic particle flaw detector 60 is detachably connected to the mounting plate 32.

[0025] When the actuation mechanism 30 drives the magnetic particle flaw detector 60 and the spraying component 40, the shafts of the two motors 33 rotate. The shafts of the motors 33 drive the rollers 34 to rotate, causing the rollers 34 to move on the slide rail 22. Consequently, the mounting plate 32 slides on the slide rail 22 via the sliding sleeve 31. The spraying component 40 moves with the mounting plate 32, spraying the surface of the large pressure-bearing equipment. The magnetic particle flaw detector 60 moves with the mounting plate 32, moving from the previous inspection position to the next inspection position.

[0026] like Figure 2 As shown in the embodiment of this application, the actuation mechanism 30 further includes two first brackets 35; the two first brackets 35 are spaced apart and connected to the mounting plate 32, and the two first brackets 35 are at least partially located outside the mounting plate 32 in the extending direction of the two slide rails 22; the two motors 33 are respectively connected to the portions of the first brackets 35 located outside the mounting plate 32.

[0027] The two first brackets 35 provide the mounting base for the two motors 33. When the two motors 33 are working, the motors 33 drive the mounting plate 32 to slide on the two slide rails 22 through the two first brackets 35.

[0028] For example, the two first brackets 35 can be bolted to the mounting plate 32, and the two motors 33 can be bolted to the two first brackets 35 respectively.

[0029] like Figure 2 As shown in the embodiment of this application, the actuation mechanism 30 further includes a second bracket 36; the second bracket 36 is connected to the mounting plate 32, and the magnetic particle flaw detector 60 is detachably connected to the second bracket 36.

[0030] For example, the second bracket 36 is bolted to the mounting plate 32, and multiple straps connect the magnetic particle flaw detector 60 to the second bracket 36.

[0031] like Figure 1As shown in the embodiment of this application, the adsorption element 10 is an electric suction cup. When it is necessary to adsorb the adsorption element 10 onto the surface of a large pressure-bearing device, the inspector turns on the switch of the electric suction cup; when it is necessary to change the inspection position, the inspector turns off the switch of the electric suction cup.

[0032] like Figure 1 As shown in the embodiment of this application, the two slide rails 22 are arc-shaped, allowing the surface crack detection device for the pressure equipment to adapt to the outer circumference of the boiler. Of course, in other embodiments of this application, the two slide rails 22 can also be straight.

[0033] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0034] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A device for detecting surface cracks in a pressure equipment, characterized in that, The utility model relates to a kind of magnetic particle flaw detector, comprising: A plurality of suction accessories; Guiding assembly, the guiding assembly includes fixed rod and two slide rails, the two slide rails are arranged in parallel, and the end of the two slide rails is fixedly connected with the suction accessory, and the two ends of the fixed rod are connected to the two slide rails; Actuating mechanism, the actuating mechanism is connected to the two slide rails, configured to move on the two slide rails; Spray piece, the spray piece is fixedly connected to the actuating mechanism, and the water outlet hole of the spray piece is towards the inside of the two slide rails; Storage box, the storage box is communicated with the spray piece, for storing magnetic powder suspension and conveying magnetic powder suspension to the spray piece; And Magnetic particle flaw detector, the magnetic particle flaw detector is detachably connected to the actuating mechanism.

2. The apparatus according to claim 1, wherein The actuating mechanism includes two slide sleeves, a mounting plate, two motors and two rollers; The two slide sleeves are respectively slidably sleeved on the two slide rails, and the opposite two sides of the mounting plate are respectively fixedly connected to the two slide sleeves; The two motors are connected to the mounting plate, and the rotating shaft of the motor is orthogonal to the two slide rails; The two rollers are respectively installed on the rotating shaft of the two motors, and the surface of the two rollers is respectively abutted to the two slide rails; Wherein, the spray piece is connected to the inside of the two slide rails of the mounting plate, and the magnetic particle flaw detector is detachably connected to the mounting plate.

3. The apparatus according to claim 2, wherein The actuating mechanism further includes two first supports; The two first supports are spaced apart and connected to the mounting plate, and the two first supports are at least partially located on the outside of the mounting plate in the extension direction of the two slide rails; The two motors are respectively connected to the part of the first support located on the outside of the mounting plate.

4. The apparatus according to claim 2 or 3, characterized in that, The actuating mechanism further includes a second support; The second support is connected to the mounting plate, and the magnetic particle flaw detector is detachably connected to the second support.

5. The apparatus of claim 1, wherein The suction accessory is an electric suction cup.

6. The apparatus of claim 1, wherein, The two slide rails are arc-shaped.

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