Movable drilling rod magnetic flux leakage detection device

Abstract

The utility model relates to the technical field of detection devices, and discloses a movable drill rod magnetic flux leakage detection device which comprises a detection mechanism, two bottom frames, a drill rod body, two bottom blocks, two supporting plates, two bottom plates and two supporting frames. Electric telescopic rods are fixedly arranged on the front sides and the rear sides of the opposite sides of the upper end faces of the two bottom plates correspondingly, and moving wheels are rotationally arranged on the two sides of the front end faces and the two sides of the rear end faces of the two bottom plates correspondingly. According to the utility model, the detection method is more convenient, the detection equipment is light, the field installation is fast, the detection process and control are simple, the maintenance is very convenient, the magnetic gathering detection patent technology is adopted, the detection without leak detection and the small-size detection probe are realized by using a small number of Hall elements, the working probe is ensured to scan the thickened area of the drill rod, the small blind area detection is realized, and the detection efficiency is improved. And the investment of end ultrasonic flaw detection equipment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field especially relates to a mobile drill pipe magnetic flux leakage detection device. BACKGROUND

[0002] Drill pipe magnetic flux leakage detection is a kind of nondestructive testing technique, is used to assess the integrity and safety of drill pipe in the use process, by detecting the defect in drill pipe, potential equipment failure can be prevented, when detecting drill bit, it needs to use detection device, detection device is through electromagnet or magnetic field generator to drill pipe exert a stable magnetic field, make drill pipe inside produce certain magnetization, when drill pipe exists defect, local magnetic field line will change, form magnetic flux leakage signal.

[0003] Most of the existing magnetic flux leakage detection device needs manual lifting drill pipe and placing in high position, then lifting drill pipe again and putting detection mechanism into drill pipe, and drill pipe is blocked by support and causes the area close to two ends to be limited, and it needs to constantly lift drill pipe when detecting, which is very tiring, therefore, the technical personnel in the field provide a mobile drill pipe magnetic flux leakage detection device to solve the problems in the background art. UTILITARIAN CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a mobile drill pipe magnetic flux leakage detection device, which is more convenient, and the detection equipment is light, the on-site installation is quick, the detection process and control are simple, and the maintenance is very convenient.

[0005] To achieve the above object, the utility model provides the following technical scheme: a mobile drill pipe magnetic flux leakage detection device, including detection mechanism, two bottom frames, drill pipe main body, two bottom blocks, two support plates, two bottom plates and two support frames, the lower end surface of two support frames is fixedly provided with arc plate, the front side and rear side position of the upper end surface of two bottom plates are fixedly provided with electric telescopic rod, and the two sides of the front end surface and the rear end surface of two bottom plates are rotatably provided with moving wheel;

[0006] The detection mechanism includes detection frame, magnetization and degausser and detection probe, the front side and rear side position of the upper side of the two side end surfaces of detection frame are fixedly provided with power block, the side end surface away from detection frame of four power blocks is fixedly provided with power motor, and the inner wall of detection frame is fixedly provided with inner ring.

[0007] Further, the middle position of the upper end surface of two bottom blocks is fixedly provided with supporting block, the drill pipe main body is movably arranged on the upper end surface of two supporting blocks, and two bottom blocks are arranged on the opposite side of two bottom frames.

[0008] Further, the opposite side positions of the two bottom plate upper end surfaces are fixedly provided with two support rods, and the two support plates are respectively fixedly arranged on the upper end surfaces of the support rods.

[0009] Further, the opposite side positions of the two bottom plate upper end surfaces are fixedly provided with two support rods, and the two support plates are respectively fixedly arranged on the upper end surfaces of the support rods.

[0010] Further, the detection mechanism is movably arranged on the upper end surfaces of the two support plates, and the two bottom plates are respectively slidably arranged in the two bottom frames.

[0011] Further, the opposite side positions of the two bottom plate upper end surfaces are fixedly provided with two support rods, and the two support plates are respectively fixedly arranged on the upper end surfaces of the support rods.

[0012] Further, the opposite side positions of the two bottom plate upper end surfaces are fixedly provided with two support rods, and the two support plates are respectively fixedly arranged on the upper end surfaces of the support rods.

[0013] Further, the magnetization and demagnetization device is fixedly arranged at the rear side position of the lower side of one side end surface of the detection frame, and the detection probe is fixedly arranged at the rear side position of the middle of one side end surface of the detection frame.

[0014] The mobile drill pipe magnetic flux leakage detection device has the following beneficial effects:

[0015] 1. The mobile drill pipe magnetic flux leakage detection device is used for detecting the drill pipe, and the detection mechanism is placed on the support plate, the bottom plate is pushed to make the drill pipe reach above the arc plate, the drill pipe passes through the detection mechanism, the electric telescopic rod is started to push the support frame, the support frame is pushed through the arc plate to hold up the drill pipe and make the drill pipe rise, the drill pipe hangs the detection mechanism, the detection mechanism is separated from the support plate below, the drill pipe is detected by sliding the detection mechanism on the drill pipe, the detection method is more convenient, the detection equipment is light, the on-site installation is fast, the detection process and control are simple, and maintenance is extremely convenient.

[0016] 2. The mobile drill pipe magnetic flux leakage detection device adopts the magnetic flux leakage and main magnetic flux fusion detection method, realizes comprehensive detection of cracks, corrosion pits and wall thickness, adopts the magnetic detection patent technology, realizes non-detection flaw detection with a small amount of Hall elements, a small size detection probe, ensures that the working probe scans the drill pipe thickening area, achieves small blind area detection, and reduces the investment of end ultrasonic flaw detection equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the utility model;

[0018] Figure 2The axial view of the bottom frame of the utility model shows;

[0019] Figure 3 The axial view of the arc plate of the utility model shows;

[0020] Figure 4 The axial view of the detection mechanism of the utility model shows.

[0021] Legend:

[0022] 1, detection mechanism; 2, bottom frame; 3, drill pipe main body; 4, bottom block; 5, supporting block; 6, supporting plate; 7, rear frame; 8, moving wheel; 9, side plate; 10, supporting frame; 11, arc plate; 12, back plate; 13, electric telescopic rod; 14, supporting rod; 15, bottom plate; 101, detection frame; 102, power block; 103, power motor; 104, side ring; 105, heat dissipation block; 106, inner ring; 107, magnetization and demagnetization device; 108, detection probe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] With reference to Figures 1-3 The utility model provides an embodiment: a mobile drill pipe magnetic flux leakage detection device, including detection mechanism 1, two bottom frame 2, drill pipe main body 3, two bottom block 4, two supporting plate 6, two bottom plate 15 and two supporting frame 10, two supporting frame 10 lower end surface all are fixedly set with arc plate 11, two bottom plate 15 upper end surface opposite side front side and rear side position all are fixedly set with electric telescopic rod 13, two bottom plate 15 front end surface and rear end surface two side positions all are rotationally set with moving wheel 8;

[0025] The middle positions of the upper end faces of the two bottom blocks 4 are fixedly provided with supporting blocks 5, the drill rod body 3 is movably arranged on the upper end faces of the two supporting blocks 5, the two bottom blocks 4 are arranged close to the opposite sides of the two bottom frames 2, the opposite side positions of the inner bottom faces of the two bottom frames 2 are fixedly provided with rear frames 7, the opposite side positions of the upper end faces of the two bottom plates 15 are fixedly provided with rear plates 12, the front side and the rear side of the opposite side positions of the upper end faces of the two bottom plates 15 are fixedly provided with two supporting rods 14, the two supporting plates 6 are fixedly arranged on the upper end faces of the plurality of supporting rods 14, the detection mechanism 1 is movably arranged on the upper end faces of the two supporting plates 6, the two bottom plates 15 are slidably arranged in the two bottom frames 2, the upper side positions of the front end faces and the rear end faces of the two supporting frames 10 are fixedly provided with side plates 9, and the output ends of the four electric telescopic rods 13 are fixedly arranged on the lower end faces of the four side plates 9.

[0026] Specifically, when the drill rod is detected, the drill rod is placed on the supporting block 5, the detection mechanism 1 is placed on the supporting plate 6, the bottom plate 15 is pushed to make the drill rod reach above the arc plate 11, at this time, the drill rod passes through the detection mechanism 1, the electric telescopic rod 13 is started to push the supporting frame 10 through the side block, the supporting frame 10 holds up the drill rod through the arc plate 11 to make the drill rod rise, the drill rod hangs the detection mechanism 1 to make the detection mechanism 1 below and the supporting plate 6 disengage, the drill rod is detected through the detection mechanism 1, the fusion detection method of leakage magnetic flux and main magnetic flux is used to realize the comprehensive detection of cracks, corrosion pits and wall thickness.

[0027] Referring to Figure 4 , the detection mechanism 1 comprises a detection frame 101, a magnetization and demagnetization device 107 and a detection probe 108, the front side and the rear side of the upper side of the two side end faces of the detection frame 101 are fixedly provided with power blocks 102, the sides away from the detection frame 101 of the four power blocks 102 are fixedly provided with power motors 103, and the inner wall of the detection frame 101 is fixedly sleeved with an inner ring 106.

[0028] The front end face and the rear end face of the detection frame 101 are fixedly provided with a plurality of heat dissipation blocks 105, the front side and the rear side of the upper side between the two side end faces of the detection frame 101 are rotatably provided with side rings 104, the magnetization and demagnetization device 107 is fixedly arranged at the rear side position of the lower side of the side end face of the detection frame 101, and the detection probe 108 is fixedly arranged at the rear side position of the middle of the side end face of the detection frame 101.

[0029] Specific, by power motor 103 drive power block 102 inside the roller rotation, rotating the roller will drive detection mechanism 1 on the drill pipe sliding, through the detection mechanism 1 on the detection probe 108 on the drill pipe detection, and magnetization and demagnetizer 107 in advance magnetization, back to the drill pipe demagnetization, and in the detection frame 101 of the front and rear side are provided with heat dissipation block 105, through the heat dissipation block 105 can accelerate the heat dissipation of detection mechanism 1, using the magnetic detection patent technology, with a small amount of hall element to realize no missing detection, small size detection probe 108, ensure that the work probe scanning to drill pipe thickening area, achieve small blind area detection, reduce the end ultrasonic flaw detection equipment investment, using super wear-resistant probe structure and follow-up centering patent technology, ensure that the stable detection signal, prolong the service life of the probe to 200 kilometers or more than 20,000 drill pipe, both practical and economic, quantitative data analysis patent technology, for cracks and corrosion pits, using 4 channel independent processing, avoid the "mustache eyebrow a grab" phenomenon when single channel processing, realize the accurate classification of defects, reduce the useful drill pipe misjudgment and scrap rod of missing judgment, for the wall thickness of drill pipe, using 4 independent channel processing, accurate intuitive, for the thickening area of the rod end, using a special processing method to eliminate the influence of end wall thickness uneven and end effect, accurately display the defect state, the alarm threshold of detection equipment using software adjustment, signal condition can be used macro or detailed display, realize the accurate flaw detection of drill pipe state.

[0030] Working principle: when detecting the drill pipe, place the drill pipe on the supporting block 5, push the bottom plate 15 to make the drill pipe reach above the arc plate 11, start the electric telescopic rod 13 to push the supporting frame 10 through the side block, make the supporting frame 10 hold the drill pipe through the arc plate 11 to make the drill pipe rise, hang the detection mechanism 1 below the supporting plate 6, then drive the power block 102 inside the roller through the power motor 103, the rotating roller will drive the detection mechanism 1 to slide on the drill pipe, and the detection probe 108 on the detection mechanism 1 detects the drill pipe, and the magnetization and demagnetizer 107 magnetizes in advance, and demagnetizes the drill pipe when retreating.

[0031] Secondly, pull up the detection mechanism 1 through the side ring 104 on both sides of the detection mechanism 1, place the detection mechanism 1 on the supporting plate 6, make the bottom plate 15 move to drive the detection mechanism 1 to move and fit on the drill pipe, and the heat dissipation block 105 is arranged on the front and rear side of the detection frame 101, which can accelerate the heat dissipation of the detection mechanism 1.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A mobile drill pipe magnetic flux leakage detection device, comprising a detection mechanism (1), two bottom frames (2), a drill pipe main body (3), two bottom blocks (4), two support plates (6), two bottom plates (15) and two support frames (10), characterized in that: Two lower end surfaces of the support frames (10) are fixedly provided with arc plates (11), front sides and rear sides of opposite sides of upper end surfaces of the two bottom plates (15) are fixedly provided with electric telescopic rods (13), and two sides of front end surfaces and rear end surfaces of the two bottom plates (15) are rotatably provided with moving wheels (8). The detection mechanism (1) comprises a detection frame (101), a magnetization and demagnetization device (107) and a detection probe (108), front sides and rear sides of upper sides of two side end surfaces of the detection frame (101) are fixedly provided with power blocks (102), far side end surfaces of the four power blocks (102) are fixedly provided with power motors (103), and an inner ring (106) is fixedly arranged on an inner wall of the detection frame (101).

2. The mobile drill pipe magnetic flux leakage inspection apparatus of claim 1, wherein: Upper end surfaces of the two bottom blocks (4) are fixedly provided with supporting blocks (5) at middle positions, the drill rod body (3) is movably arranged on upper end surfaces of the two supporting blocks (5), and the two bottom blocks (4) are arranged close to opposite sides of the two bottom frames (2).

3. The mobile drill pipe magnetic flux leakage inspection apparatus of claim 1, wherein: Opposite side positions of inner bottom surfaces of the two bottom frames (2) are fixedly provided with rear frames (7), and opposite side positions of upper end surfaces of the two bottom plates (15) are fixedly provided with rear plates (12).

4. The mobile drill pipe magnetic flux leakage inspection apparatus of claim 1, wherein: Front sides and rear sides of opposite side positions of upper end surfaces of the two bottom plates (15) are fixedly provided with two supporting rods (14), and the two supporting plates (6) are fixedly arranged on upper end surfaces of the plurality of supporting rods (14).

5. The mobile drill pipe magnetic flux leakage inspection apparatus of claim 1, wherein: The detection mechanism (1) is movably arranged on upper end surfaces of the two supporting plates (6), and the two bottom plates (15) are slidably arranged in the two bottom frames (2).

6. The mobile drill pipe magnetic flux leakage inspection apparatus of claim 1, wherein: Upper side positions of front end surfaces and rear end surfaces of the two support frames (10) are fixedly provided with side plates (9), and output ends of the four electric telescopic rods (13) are fixedly arranged on lower end surfaces of the four side plates (9).

7. The mobile drill pipe magnetic flux leakage inspection apparatus of claim 1, wherein: Front end surfaces and rear end surfaces of the detection frame (101) are fixedly provided with a plurality of heat dissipation blocks (105), and front sides and rear sides of upper sides between the two side end surfaces of the detection frame (101) are rotatably provided with side rings (104).

8. The mobile drill pipe magnetic flux leakage inspection apparatus of claim 1, wherein: The magnetization and demagnetization device (107) is fixedly arranged at a rear side position of a lower side of a side end surface of the detection frame (101), and the detection probe (108) is fixedly arranged at a rear side position of a middle of a side end surface of the detection frame (101).

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