CN108303458B - Pipeline detection device that detects a flaw - Google Patents
Pipeline detection device that detects a flaw Download PDFInfo
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- CN108303458B CN108303458B CN201810068979.4A CN201810068979A CN108303458B CN 108303458 B CN108303458 B CN 108303458B CN 201810068979 A CN201810068979 A CN 201810068979A CN 108303458 B CN108303458 B CN 108303458B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
Abstract
The invention discloses a pipeline flaw detection device which comprises a supporting cross beam, wherein a detection processing device is arranged at the upper end of the supporting cross beam, vertical rods are movably arranged at two ends of the bottom of the supporting cross beam, arc-shaped fixing parts are arranged at the lower ends of the vertical rods, through holes are transversely formed in the vertical rods, cross rods are arranged between the two through holes in an alternating mode, the middle position of the upper end of each cross rod is fixedly connected with the middle position of the bottom of the supporting cross beam through a first spring, a first roller is arranged at the bottom end of the side wall of each vertical rod, a detection probe is arranged at the middle position of the bottom of each cross rod, a second roller is arranged at two sides of the detection probe and positioned at the bottom of each cross rod, a sliding groove is formed in the bottom of the supporting cross beam, the inner part of the sliding groove is fixedly connected with the upper end of each vertical rod through a locking mechanism, and a pushing mechanism matched with the locking mechanism is arranged at one side of each vertical rod. Has the advantages that: through setting up detection processing apparatus to make pipeline flaw detection device can detect the inside crackle of pipeline part or defect, thereby judge whether the pipeline has the damage, and then can effectively avoid the emergence of major incident.
Description
Technical Field
The invention relates to the field of pipeline detection, in particular to a pipeline flaw detection device.
Background
A pipeline is a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc. Generally, a fluid is pressurized by a blower, a compressor, a pump, a boiler, etc., and then flows from a high pressure portion to a low pressure portion of a pipe, or is transported by the pressure or gravity of the fluid itself. The use of pipelines is very widespread, mainly in water supply, drainage, heating, gas supply, long-distance oil and gas delivery, agricultural irrigation, hydraulic engineering and various industrial installations. In the prior art, engineering technicians usually adopt pipeline detection equipment to check leakage points of pipelines, so that the leaked pipelines can only be detected, and the pipelines cannot be subjected to preventive detection, so that the real-time state of the pipelines is difficult to effectively monitor, and the possibility of leakage of the pipelines cannot be effectively avoided.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention provides a pipeline flaw detection device aiming at the problems in the related art, and aims to overcome the technical problems in the related art.
The technical scheme of the invention is realized as follows:
a pipeline flaw detection device comprises a supporting cross beam, a detection processing device, a vertical rod, an arc-shaped fixing piece, through holes, a cross rod, a first spring, a first roller, a detection probe, a second roller, a sliding groove, a locking mechanism and a pushing mechanism, wherein the detection processing device is arranged at the upper end of the supporting cross beam, the vertical rod is movably arranged at both ends of the bottom of the supporting cross beam, the arc-shaped fixing piece is arranged at the lower end of the vertical rod, the through holes are transversely arranged on the vertical rod, the cross rod is alternately arranged between the two through holes, the middle position of the upper end of the cross rod is fixedly connected with the middle position of the bottom of the supporting cross beam through the first spring, the first roller is arranged at the bottom of the side wall of the vertical rod, the detection probe is arranged at the middle position of the bottom of the cross rod, the second roller is arranged at both sides of the detection probe and at the bottom of the cross rod, the bottom of the supporting beam is provided with the sliding groove, the sliding groove is internally connected with the upper end of the vertical rod through the locking mechanism, and one side of the vertical rod is provided with the pushing mechanism matched with the locking mechanism.
Wherein the detection processing device is provided with a microprocessor, an excitation signal module, a keyboard, a display module, an alarm module, a storage module, a power supply module, an A/D conversion module, a signal processing module and a signal receiving module, the microprocessor is connected with the excitation signal module, the keyboard, the display module, the alarm module, the storage module and the A/D conversion module in sequence, the A/D conversion module is connected with the signal receiving module through the signal processing module, the power module is respectively connected with the microprocessor, the excitation signal module, the keyboard, the display module, the alarm module, the storage module, the A/D conversion module, the signal processing module and the signal receiving module in sequence, and the signal receiving module is electrically connected with the detection probe.
The locking mechanism comprises a rack, a sliding block, a first rotating shaft, a clamping block, a fixed shaft, a second spring, a second rotating shaft, a movable rod and a third rotating shaft, wherein the rack is arranged on two sides inside the sliding groove respectively, the sliding groove is arranged between the two racks, the first rotating shaft is arranged on two sides of the upper end of the sliding block respectively, the first rotating shaft is connected with one end of the clamping block, the other end of the clamping block is matched with a tooth groove of the rack, the second rotating shaft is arranged at the middle of the clamping block, the second rotating shaft passes through the movable rod and is movably connected with the third rotating shaft, the middle of the upper end of the sliding block is provided with the fixed shaft, and the fixed shaft passes through the second spring and is connected with one side of the clamping block.
Wherein, pushing mechanism includes fly leaf, movable tube, three springs, propelling movement frame, diaphragm and catch bar, the fly leaf is fixed the locking mechanism lower extreme, the fly leaf lower extreme is equipped with the diaphragm, fly leaf one side is equipped with the movable tube, the movable tube bottom is equipped with the three springs, three upper ends of springs are connected the one end of propelling movement frame, and, the propelling movement frame is the triangle-shaped structure, one side of propelling movement frame is located inside the movable tube, the second end upper end of propelling movement frame is equipped with the catch bar, the third end of propelling movement frame passes through the three connections of pivot the one end of catch bar.
Furthermore, both ends of the cross rod are respectively provided with a limiting block.
Further, the first spring and the third spring are both compression springs.
Further, the second spring is an extension spring.
Further, the excitation signal module is composed of an excitation selection circuit, the excitation selection circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a variable resistor RP 12, a capacitor C12, a processor U12, a diode D12, a triode Q12, and a triode Q12, wherein first ends of the resistor R12, the variable resistor RP 12, a pin X and a pin X12, a pin X and a pin X12 corresponding to the first end of the microprocessor are connected in sequence The second ends of the resistor R2, the resistor R3, the resistor R4, the resistor R5, the resistor R6, the resistor R7 and the variable resistor RP1 are respectively connected to the first end of the resistor R8, the second end of the resistor R8 is respectively connected to the first ends of the resistor R9 and the resistor R10, the second end of the resistor R9 is connected to the emitter of the transistor Q1, the second end of the resistor R10 is connected to the collector of the transistor Q2, the collector of the transistor Q1 is connected to the first end of the resistor R16, the first end of the resistor R17 and the pin Y4 of the processor U1 through the resistor R14, the second end of the resistor R16 is connected to the positive power supply, the second end of the resistor R17 is respectively connected to the first end of the resistor R19 and the pin Y2 of the processor U1, the second end of the resistor R19 is connected to the ground, and the second end of the capacitor C1, a second end of the capacitor C1 is connected to a base of the transistor Q1 and an anode of the diode D1 through the resistor R15, a cathode of the diode D1 is connected to a pin Y5 on the processor U1 and an anode of the diode D2, a cathode of the diode D2 is connected to a first end of the resistor R12 and a base of the transistor Q2, an emitter of the transistor Q2 is connected to a first end of the resistor R13 and a pin Y3 on the processor U1 through the resistor R11, a second end of the resistor R13 is connected to a cathode of a power supply, a second end of the resistor R12 is grounded through the capacitor C2, a pin Y1 on the processor U1 is connected to a TOUT interface through the resistor R20, and the processor U1 is a chip-on-chip CD 4051.
Further, the signal processing module comprises a rectifying circuit, a filtering circuit and an amplifying circuit.
Further, the rectifying circuit comprises an input terminal IN1, an input terminal IN2, a transformer T1, a transformer T2, a rectifying bridge QL1, a rectifying bridge QL2 and a variable resistor RP2, the second port and the third port of the input terminal IN1 are respectively connected with two ends of the input terminal of the transformer T1, the second port and the third port of the input terminal IN2 are respectively connected with two ends of the input terminal of the transformer T2, port one on the input IN1 is connected to port four on the input IN2, port one on the input IN2 is connected to ground, two ends of the output end of the transformer T1 are respectively connected with the second port and the fourth port of the rectifier bridge QL1, two ends of the output end of the transformer T2 are respectively connected with the second port and the fourth port of the rectifier bridge QL2, a third port of the rectifier bridge QL1 is connected to a first port of the rectifier bridge QL2, and a first port of the rectifier bridge QL1 and a third port of the rectifier bridge QL2 are connected to two ends of the variable resistor RP2, respectively.
Further, the filter circuit comprises a capacitor C3, a capacitor C4, a resistor R21 and a resistor R22, the capacitor C3 is connected in parallel between the third end of the variable resistor RP2 and the first port of the rectifier bridge QL2, the capacitor C4 is connected in parallel with the capacitor C3, and two ends of the capacitor C4 are respectively connected with the first end of the resistor R21 and the first end of the resistor R22.
Further, the amplifying circuit includes a diode D3, a diode D4, a resistor R23, a resistor R24, a resistor R25, a resistor R26, a capacitor C5, a capacitor C6, and a processor U2, the second end of the resistor R21 and the second end of the resistor R21 are sequentially crossed and connected in parallel with the diode D21 and the diode D21, an anode of the diode D21 is respectively connected with the first end of the resistor R21 and a pin P21 on the processor U21, a cathode of the diode D21 is grounded through the resistor R21, a second end of the resistor R21 is respectively connected with the pin P21 on the processor U21 and the a/D conversion module, the pin P21 on the processor U21 is connected with the anode of the diode D21, the pin P21 on the processor U21 is respectively connected with the first end of the resistor R21 and the second end of the capacitor C21, and a cathode of the resistor R21 is connected with a power supply, the second end of the capacitor C5 is grounded, the pin P4 of the processor U2 is connected to the first end of the resistor R26 and the first end of the capacitor C6, the second end of the capacitor C6 is grounded, the second end of the resistor R26 is connected to the positive electrode of the power supply, the pin P6 of the processor U2 is grounded, and the processor U2 is an OP07 operational amplifier.
Further, the a/D conversion module is composed of an a/D conversion circuit, the a/D conversion circuit includes a processor U3, an input terminal IN3, a resistor R3, a capacitor C3, and a variable resistor RP3, a pin A3 on the processor U3 is respectively connected to a first end of the resistor R3 and a first end of the resistor R3, a second end of the resistor R3 is grounded, a second end of the resistor R3 is respectively connected to a pin A3 on the processor U3 and a first end of the variable resistor RP3, a pin A3 on the processor U3 is respectively connected to a first end of the resistor R3, a first end of the resistor R3 and a positive terminal of the resistor R3, and a positive terminal of the resistor R3 and a positive terminal of the input terminal 3 are connected to the input terminal of the resistor R3, a second end of the resistor R30 is grounded, a pin A3 of the processor U3 is respectively connected to a first end of the capacitor C7 and a first end of the resistor R32, a second end of the capacitor C7 is grounded, a second end of the resistor R32 is connected to a positive electrode of a power supply, a pin A6 of the processor U3 is grounded, a pin A3 of the processor U3 is respectively connected to a first end of the resistor R3 and a first end of the capacitor C3, a second end of the resistor R3 is connected to a positive electrode of the power supply, a second end of the capacitor C3 is grounded, a second end of the variable resistor RP3 is grounded, a sliding end of the variable resistor RP3 is connected to a pin B3 of the processor U3 through the resistor R3, a pin B3 of the processor U3 is grounded through the capacitor C3, a pin B3 of the processor U3 is grounded, a pin B3 of the processor U3 is connected in parallel with the capacitor C3, the end of the capacitor C10 close to the pin B3 of the processor U4 is grounded, the end of the capacitor C10 close to the pin B4 of the processor U4 is connected to the positive electrode of the power supply, the processor U3 is an OP07 operational amplifier, and the processor U4 is an AD 1110.
The invention has the beneficial effects that: the detection processing device can be integrally fixed on the detected pipeline through the supporting cross beam, the vertical rod, the arc-shaped fixing piece and the cross rod, so that the stability of the pipeline flaw detection device is improved, and the detection result deviation caused by displacement during working is prevented; by arranging the locking mechanism and the pushing mechanism, the pipeline flaw detection device can be adjusted according to the diameter of a detection pipeline, so that the flexibility of the pipeline flaw detection device is improved, and the pipeline flaw detection device is simpler and more convenient to use; through setting up detection processing apparatus to make pipeline detection device of detecting a flaw can detect the inside crackle or the defect of pipeline part, thereby judge whether the pipeline has the damage, and then can effectively avoid the emergence of major incident, guarantee the degree of accuracy that pipeline detection device of detecting a flaw, pipeline detection device of detecting a flaw overall structure is simple, and the flexibility is stronger, improves artifical labor efficiency, improves the accurate degree of detection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a pipeline flaw detection device according to an embodiment of the invention;
FIG. 2 is a schematic block diagram of a detection processing apparatus of a pipeline flaw detection apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a locking mechanism of a pipeline flaw detection device according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a pushing mechanism of a pipeline flaw detection device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an excitation selection circuit of a pipeline flaw detection device according to an embodiment of the invention;
FIG. 6 is a schematic block diagram of a signal processing module of a pipeline flaw detection apparatus according to an embodiment of the present invention;
FIG. 7 is a schematic circuit diagram of a signal processing module of a pipeline flaw detection apparatus according to an embodiment of the present invention;
fig. 8 is a schematic diagram of an a/D conversion circuit of a pipeline flaw detection apparatus according to an embodiment of the present invention.
In the figure:
1. a support beam; 2. a detection processing device; 3. a vertical rod; 4. an arc-shaped fixing piece; 5. a through hole; 6. a cross bar; 7. a first spring; 8. a first roller; 9. detecting a probe; 10. a second roller; 11. a chute; 12. a locking mechanism; 13. a pushing mechanism; 14. a limiting block; 15. a microprocessor; 16. an excitation signal module; 17. a keyboard; 18. a display module; 19. an alarm module; 20. a storage module; 21. a power supply module; 22. an A/D conversion module; 23. a signal processing module; 24. a signal receiving module; 25. a rack; 26. a slider; 27. a first rotating shaft; 28. a clamping block; 29. a fixed shaft; 30. a second spring; 31. a second rotating shaft; 32. a movable rod; 33. a rotating shaft III; 34. a movable plate; 35. a movable tube; 36. a third spring; 37. a pushing frame; 38. a transverse plate; 39. a push rod; 40. a rectifying circuit; 41. a filter circuit; 42. an amplifying circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
According to an embodiment of the present invention, there is provided a pipeline flaw detection apparatus.
As shown in fig. 1-8, the pipeline flaw detection device according to the embodiment of the present invention includes a supporting beam 1, a detection processing device 2, a vertical rod 3, an arc-shaped fixing member 4, a through hole 5, a cross rod 6, a first spring 7, a first roller 8, a detection probe 9, a second roller 10, a chute 11, a locking mechanism 12 and a pushing mechanism 13, wherein the detection processing device 2 is disposed at the upper end of the supporting beam 1, the vertical rod 3 is movably disposed at both ends of the bottom of the supporting beam 1, the arc-shaped fixing member 4 is disposed at the lower end of the vertical rod 3, the through hole 5 is disposed on the vertical rod 3 in the transverse direction, the cross rod 6 is disposed between the two through holes 5, the middle position of the upper end of the cross rod 6 is fixedly connected to the middle position of the bottom of the supporting beam 1 through the first spring 7, the first roller 8 is disposed at the bottom end of the side wall of the vertical rod 3, 6 bottom intermediate positions of horizontal pole are provided with test probe 9, test probe 9 both sides just are located 6 bottoms of horizontal pole are provided with two 10 of gyro wheels, 1 bottom of supporting beam is provided with spout 11, spout 11 is inside to be passed through locking mechanism 12 with 3 upper end fixed connection of montant, 3 one side of montant be provided with locking mechanism 12 matched with pushing mechanism 13.
The detection processing device 2 is provided with a microprocessor 15, an excitation signal module 16, a keyboard 17, a display module 18, an alarm module 19, a storage module 20, a power module 21, an A/D conversion module 22, a signal processing module 23 and a signal receiving module 24, wherein the microprocessor 15 is sequentially connected with the excitation signal module 16, the keyboard 17, the display module 18, the alarm module 19, the storage module 20 and the A/D conversion module 22, the A/D conversion module 22 is connected with the signal receiving module 24 through the signal processing module 23, and the power module 21 is sequentially connected with the microprocessor 15, the excitation signal module 16, the keyboard 17, the display module 18, the alarm module 19, the storage module 20, the A/D conversion module 22, the signal receiving module 24 respectively, The signal processing module 23 is connected to the signal receiving module 24, and the signal receiving module 24 is electrically connected to the detection probe 9.
Wherein, locking mechanism 12 includes rack 25, slider 26, pivot one 27, fixture block 28, fixed axle 29, spring two 30, pivot two 31, movable rod 32 and pivot three 33, 11 inside both sides of spout all are provided with respectively rack 25, 11 inside and being located two of spout are provided with between the rack 25 slider 26, 26 upper end both sides of slider are equipped with respectively pivot one 27, pivot one 27 with the one end of fixture block 28 is connected, and, the other end of fixture block 28 with the tooth's socket of rack 25 cooperatees, the middle part of fixture block 28 is equipped with pivot two 31, pivot two 31 pass through movable rod 32 with pivot three 33 swing joint, slider 26 upper end middle part is equipped with fixed axle 29, fixed axle 29 pass through spring two 30 with one side of fixture block 28 is connected.
Wherein, pushing mechanism 13 includes fly leaf 34, movable tube 35, three 36 of spring, pushing frame 37, diaphragm 38 and catch bar 39, fly leaf 34 is fixed locking mechanism 12 lower extreme, fly leaf 34 lower extreme is equipped with diaphragm 38, fly leaf 34 one side is equipped with movable tube 35, movable tube 35 bottom is equipped with three 36 of spring, three 36 upper ends of spring are connected the one end of pushing frame 37, and, pushing frame 37 is the triangle-shaped structure, one side of pushing frame 37 is located inside movable tube 35, the second end upper end of pushing frame 37 is equipped with catch bar 39, the third end of pushing frame 37 passes through three 33 of pivot are connected the one end of movable bar 32.
In one embodiment, for the cross bar 6, two ends of the cross bar 6 are respectively provided with a limiting block 14, so that the relative movement of the cross bar 6 is limited, and the stability of the pipeline flaw detection device is further improved.
In one embodiment, for the first spring 7 and the third spring 36, the first spring 7 and the third spring 36 are compression springs, so that the cross bar 6 is more stable when moving along the pipeline, and the stability of the pipeline flaw detection device is further improved.
In one embodiment, the second spring 30 is an extension spring, so that the latch 28 of the locking mechanism 12 is engaged with the rack 25 more stably, thereby improving the stability of the locking mechanism 12.
In an embodiment, for the excitation signal module 16, the excitation signal module 16 includes an excitation selection circuit, and the excitation selection circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R19, a resistor R20, a variable resistor RP1, a capacitor C1, a processor U1, a diode D1, a triode Q1, and a triode Q1, wherein the resistor R1, the variable resistor R1, the first terminal of the variable resistor R1, the first terminal of the variable resistor, the first terminal of the second terminal of the variable terminal of the microprocessor, the variable terminal of the microprocessor, the variable terminal, the microprocessor, the first terminal, the second terminal, the microprocessor, the second terminal, and the terminal of the second terminal of the microprocessor, the second terminal of the microprocessor, and the microprocessor, and the terminal of the second terminal of the microprocessor, and the terminal of the microprocessor, the terminal of the microprocessor, and the microprocessor, the terminal of the microprocessor, and the terminal of the microprocessor, and the terminal of the microprocessor, and the microprocessor, the terminal of the microprocessor, and the microprocessor, and the terminal of the terminal, A pin X6, a pin X7 and a pin X8, wherein second ends of the resistor R1, the resistor R2, the resistor R3, the resistor R4, the resistor R5, the resistor R6, the resistor R7 and the variable resistor RP 7 are respectively connected to a first end of the resistor R7, a second end of the resistor R7 is respectively connected to first ends of the resistor R7 and the resistor R7, a second end of the resistor R7 is connected to an emitter of the transistor Q7, a second end of the resistor R7 is connected to a collector of the transistor Q7, a collector of the transistor Q7 is respectively connected to the first end of the resistor R7, the first end of the resistor R7 and the pin Y7 of the processor U7 through the resistor R7, the second end of the resistor R7 is connected to a positive electrode of a power supply, and the second end of the resistor R7 is respectively connected to the pin Y7 and the pin Y7 of the processor U7, the second ends of the resistors R19 are respectively connected to the ground and the first end of the capacitor C1, the second end of the capacitor C1 is respectively connected to the base of the triode Q1 and the anode of the diode D1 through the resistor R15, the cathode of the diode D1 is connected to the pin Y5 on the processor U1 and the anode of the diode D2, the cathode of the diode D2 is connected to the first terminal of the resistor R12 and the base of the transistor Q2, the emitter of the transistor Q2 is connected to the first terminal of the resistor R13 and the pin Y3 of the processor U1 through the resistor R11, the second end of the resistor R13 is connected with the negative pole of the power supply, the second end of the resistor R12 is grounded through the capacitor C2, the pin Y1 of the processor U1 is connected to the TOUT interface through the resistor R20, and the processor U1 is a chip-on-chip CD 4051.
In one embodiment, for the above-mentioned signal processing module 23, the signal processing module 23 includes a rectifying circuit 40, a filtering circuit 41, and an amplifying circuit 42.
IN one embodiment, for the above-mentioned rectifier circuit 40, the rectifier circuit 40 includes an input terminal IN1, an input terminal IN2, a transformer T1, a transformer T2, a rectifier bridge QL1, a rectifier bridge QL2 and a variable resistor RP2, a port two and a port three on the input terminal IN1 are respectively connected to two ends of an input terminal of the transformer T1, a port two and a port three on the input terminal IN2 are respectively connected to two ends of an input terminal of the transformer T2, a port one on the input terminal IN1 is connected to a port four on the input terminal IN2, a port one on the input terminal IN2 is grounded, two ends of an output terminal of the transformer T1 are respectively connected to two and a port four of the rectifier bridge QL1, two ends of an output terminal of the transformer T2 are respectively connected to two and a port four of the rectifier bridge QL2, a port three of the rectifier bridge QL1 is connected to a port one of the rectifier bridge QL2, the first port of the rectifier bridge QL1 and the third port of the rectifier bridge QL2 are respectively connected to two ends of the variable resistor RP 2.
In an embodiment, for the filter circuit 41, the filter circuit 41 includes a capacitor C3, a capacitor C4, a resistor R21, and a resistor R22, the capacitor C3 is connected in parallel between the third end of the variable resistor RP2 and the first port of the rectifier bridge QL2, the capacitor C4 is connected in parallel with the capacitor C3, and two ends of the capacitor C4 are respectively connected to the first end of the resistor R21 and the first end of the resistor R22.
In an embodiment, for the above-mentioned amplifying circuit 42, the amplifying circuit 42 includes a diode D3, a diode D4, a resistor R23, a resistor R24, a resistor R25, a resistor R26, a capacitor C5, a capacitor C6, and a processor U2, the second end of the resistor R21 and the second end of the resistor R22 are sequentially crossed and connected in parallel with the diode D3 and the diode D4, an anode of the diode D4 is connected to a first end of the resistor R4 and a pin P4 of the processor U4 respectively, a cathode of the diode D4 is grounded through the resistor R4, a second end of the resistor R4 is connected to the pin P4 of the processor U4 and the a/D conversion module 22 respectively, a pin P4 of the processor U4 is connected to an anode of the diode D4, a pin P4 of the processor U4 is connected to a first end of the resistor R4 and a first end of the capacitor C4 respectively, the second end of the resistor R25 is connected with the negative electrode of a power supply, the second end of the capacitor C5 is grounded, a pin P4 on the processor U2 is respectively connected with the first end of the resistor R26 and the first end of the capacitor C6, the second end of the capacitor C6 is grounded, the second end of the resistor R26 is connected with the positive electrode of the power supply, a pin P6 on the processor U2 is grounded, and the processor U2 is an OP07 operational amplifier.
IN an embodiment, for the above a/D conversion module 22, the a/D conversion module 22 is composed of an a/D conversion circuit, the a/D conversion circuit includes a processor U3, a processor U4, an input terminal IN3, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R31, a resistor R32, a resistor R33, a capacitor C33, and a variable resistor RP 33, the pin a 33 of the processor U33 is respectively connected to a first end of the resistor R33 and a first end of the resistor R33, the second end of the resistor R33 is grounded, the second end of the resistor R33 is respectively connected to the pin a 33 of the processor U33 and a first end of the variable resistor RP 33, the pin a 33 of the processor U33 is respectively connected to the first end of the resistor R33, the first end of the resistor R33 and the first end of the resistor R33, a second end of the resistor R28 is connected to a positive power supply, a second end of the resistor R29 is connected to the input terminal IN3, a second end of the resistor R30 is grounded, a pin a3 of the processor U3 is connected to a first end of the capacitor C7 and a first end of the resistor R32, a second end of the capacitor C7 is grounded, a second end of the resistor R32 is connected to the positive power supply, a pin a6 of the processor U3 is grounded, a pin a4 of the processor U3 is connected to a first end of the resistor R33 and a first end of the capacitor C8, a second end of the resistor R8 is connected to the positive power supply, a second end of the capacitor C8 is grounded, a second end of the variable resistor RP 8 is grounded, a sliding end of the variable resistor RP 8 is connected to a pin B8 of the processor U8 through the resistor R8, a pin B8 of the processor U8 is grounded through the pin B8 and a pin B8 of the capacitor U8, the capacitor C10 is connected in parallel between a pin B3 of the processor U4 and a pin B4 of the processor U4, one end of the capacitor C10 close to the pin B3 of the processor U4 is grounded, one end of the capacitor C10 close to the pin B4 of the processor U4 is connected to a positive electrode of a power supply, the processor U3 is an OP07 operational amplifier, and the processor U4 is an AD 1110.
In summary, according to the technical scheme of the invention, the cross beam 1, the vertical rod 3, the arc-shaped fixing piece 4 and the cross rod 6 are supported, so that the detection processing device 2 can be integrally fixed on the detected pipeline, the stability of the pipeline flaw detection device is improved, and the detection result deviation caused by displacement during working is prevented; by arranging the locking mechanism 12 and the pushing mechanism 13, the pipeline flaw detection device can be adjusted according to the diameter of a detection pipeline, so that the flexibility of the pipeline flaw detection device is improved, and the pipeline flaw detection device is simpler and more convenient to use; through setting up detection processing apparatus 2 to make pipeline detection device of detecting a flaw can detect the inside crackle or the defect of pipeline part, thereby judge whether the pipeline has the damage, and then can effectively avoid the emergence of major incident, guarantee the degree of accuracy that pipeline detection device of detecting a flaw, pipeline detection device overall structure is simple, and the flexibility is stronger, improves artifical labor efficiency, improves the accurate degree of detection.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A pipeline flaw detection device is characterized by comprising a supporting beam (1), a detection processing device (2), vertical rods (3), arc-shaped fixing pieces (4), through holes (5), a transverse rod (6), a first spring (7), a first roller (8), a detection probe (9), a second roller (10), a sliding groove (11), a locking mechanism (12) and a pushing mechanism (13), wherein the detection processing device (2) is arranged at the upper end of the supporting beam (1), the vertical rods (3) are movably arranged at two ends of the bottom of the supporting beam (1), the arc-shaped fixing pieces (4) are arranged at the lower end of the vertical rods (3), the through holes (5) are transversely arranged on the vertical rods (3), the transverse rod (6) is arranged between the two through holes (5) in an inserting manner, the middle position of the upper end of the transverse rod (6) is fixedly connected with the middle position of the bottom of the supporting beam (1) through the first spring (7), the bottom end of the side wall of the vertical rod (3) is provided with the first idler wheel (8), the middle position of the bottom of the cross rod (6) is provided with the detection probe (9), the two sides of the detection probe (9) and the bottom of the cross rod (6) are provided with the second idler wheel (10), the bottom of the supporting cross beam (1) is provided with the sliding chute (11), the inside of the sliding chute (11) is fixedly connected with the upper end of the vertical rod (3) through the locking mechanism (12), and one side of the vertical rod (3) is provided with the pushing mechanism (13) matched with the locking mechanism (12);
the detection processing device (2) is provided with a microprocessor (15), an excitation signal module (16), a keyboard (17), a display module (18), an alarm module (19), a storage module (20), a power supply module (21), an A/D conversion module (22), a signal processing module (23) and a signal receiving module (24), the microprocessor (15) is sequentially connected with the excitation signal module (16), the keyboard (17), the display module (18), the alarm module (19), the storage module (20) and the A/D conversion module (22), the A/D conversion module (22) is connected with the signal receiving module (24) through the signal processing module (23), and the power supply module (21) is sequentially connected with the microprocessor (15), the excitation signal module (16) and the signal receiving module (24) respectively, The keyboard (17), the display module (18), the alarm module (19), the storage module (20), the A/D conversion module (22), the signal processing module (23) and the signal receiving module (24) are connected, and the signal receiving module (24) is electrically connected with the detection probe (9);
wherein, the locking mechanism (12) comprises a rack (25), a sliding block (26), a first rotating shaft (27), a clamping block (28), a fixed shaft (29), a second spring (30), a second rotating shaft (31), a movable rod (32) and a third rotating shaft (33), the racks (25) are respectively arranged on two sides inside the sliding chute (11), the sliding block (26) is arranged inside the sliding chute (11) and positioned between the two racks (25), the first rotating shaft (27) is respectively arranged on two sides of the upper end of the sliding block (26), the first rotating shaft (27) is connected with one end of the clamping block (28), the other end of the clamping block (28) is matched with a tooth groove of the rack (25), the second rotating shaft (31) is arranged in the middle of the clamping block (28), and the second rotating shaft (31) is movably connected with the third rotating shaft (33) through the movable rod (32), the middle part of the upper end of the sliding block (26) is provided with the fixed shaft (29), and the fixed shaft (29) is connected with one side of the clamping block (28) through the second spring (30);
wherein the pushing mechanism (13) comprises a movable plate (34), a movable pipe (35), a spring III (36), a pushing frame (37), a transverse plate (38) and a pushing rod (39), the movable plate (34) is fixed at the lower end of the locking mechanism (12), the transverse plate (38) is arranged at the lower end of the movable plate (34), one side of the movable plate (34) is provided with the movable tube (35), the bottom of the movable tube (35) is provided with the third spring (36), the upper end of the spring III (36) is connected with one end of the pushing frame (37), moreover, the pushing frame (37) is in a triangular structure, one side of the pushing frame (37) is positioned in the movable pipe (35), the upper end of the second end of the pushing frame (37) is provided with the pushing rod (39), and the third end of the pushing frame (37) is connected with one end of the movable rod (32) through the third rotating shaft (33).
2. The pipeline flaw detection device according to claim 1, wherein two ends of the cross rod (6) are respectively provided with a limiting block (14).
3. The pipeline flaw detection device of claim 1, wherein the first spring (7) and the third spring (36) are compression springs.
4. The pipeline flaw detection device according to claim 1, wherein the second spring (30) is an extension spring.
5. The pipeline flaw detection device according to claim 1, wherein the excitation signal module (16) is composed of an excitation selection circuit, and the excitation selection circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R19, a resistor R20, a variable resistor RP1, a capacitor C1, a capacitor C2, a processor U1, a diode D1, a diode D2, a triode Q1 and a triode Q1, wherein the resistor R1, the resistor R1 and the variable resistor R1 are respectively and the first end of the variable resistor R1, the first end of the variable resistor R1 and the first end of the first end (1) of the variable resistor X1) are respectively and the corresponding to the pin (X1) of the microprocessor, A pin X3, and a pin X3, wherein second terminals of the resistor R3, and the variable resistor RP3 are respectively connected to a first terminal of the resistor R3, a second terminal of the resistor R3 is respectively connected to first terminals of the resistor R3 and the resistor R3, a second terminal of the resistor R3 is connected to an emitter of the transistor Q3, a second terminal of the resistor R3 is connected to a collector of the transistor Q3, a collector of the transistor Q3 is respectively connected to the first terminal of the resistor R3, and the pin Y3 of the processor U3 through the resistor R3, the second terminal of the resistor R3 is connected to a positive terminal of the power supply, and the second terminal of the resistor R3 is respectively connected to the second terminal of the processor U3, the second ends of the resistors R19 are respectively connected to the ground and the first end of the capacitor C1, the second end of the capacitor C1 is respectively connected to the base of the triode Q1 and the anode of the diode D1 through the resistor R15, the cathode of the diode D1 is connected to the pin Y5 on the processor U1 and the anode of the diode D2, the cathode of the diode D2 is connected to the first terminal of the resistor R12 and the base of the transistor Q2, the emitter of the transistor Q2 is connected to the first terminal of the resistor R13 and the pin Y3 of the processor U1 through the resistor R11, the second end of the resistor R13 is connected with the negative pole of the power supply, the second end of the resistor R12 is grounded through the capacitor C2, the pin Y1 of the processor U1 is connected to the TOUT interface through the resistor R20, and the processor U1 is a chip-on-chip CD 4051.
6. The pipeline flaw detection device according to claim 1, wherein the signal processing module (23) includes a rectifying circuit (40), a filtering circuit (41), and an amplifying circuit (42).
7. The pipeline flaw detection device according to claim 6, wherein the rectification circuit (40) comprises an input terminal IN1, an input terminal IN2, a transformer T1, a transformer T2, a rectification bridge QL1, a rectification bridge QL2 and a variable resistor RP2, a port two and a port three on the input terminal IN1 are respectively connected with two ends of the input terminal of the transformer T1, a port two and a port three on the input terminal IN2 are respectively connected with two ends of the input terminal of the transformer T2, a port one on the input terminal IN1 is connected with a port four on the input terminal IN2, a port one on the input terminal IN2 is grounded, two ends of the output terminal of the transformer T1 are respectively connected with a port two and a port four of the rectification bridge QL1, two ends of the output terminal of the transformer T2 are respectively connected with a port two and a port four of the rectification bridge QL2, a port three of the rectification bridge QL1 is connected with a port 2 of the rectification bridge QL2, the first port of the rectifier bridge QL1 and the third port of the rectifier bridge QL2 are respectively connected to two ends of the variable resistor RP 2.
8. The pipeline flaw detection device according to claim 7, wherein the filter circuit (41) comprises a capacitor C3, a capacitor C4, a resistor R21 and a resistor R22, the capacitor C3 is connected in parallel between the third end of the variable resistor RP2 and the first port of the rectifier bridge QL2, the capacitor C4 is connected in parallel with the capacitor C3, and two ends of the capacitor C4 are respectively connected with the first end of the resistor R21 and the first end of the resistor R22.
9. The pipeline flaw detection device according to claim 8, wherein the amplifying circuit (42) comprises a diode D3, a diode D4, a resistor R23, a resistor R24, a resistor R25, a resistor R26, a capacitor C5, a capacitor C6 and a processor U2, the second end of the resistor R21 and the second end of the resistor R22 are sequentially crossed and connected in parallel with the diode D3 and the diode D4, the anode of the diode D4 is respectively connected with the first end of the resistor R4 and the pin P4 on the processor U4, the cathode of the diode D4 is grounded through the resistor R4, the second end of the resistor R4 is respectively connected with the pin P4 on the processor U4 and the A/D conversion module (22), the pin P4 on the processor U4 is connected with the anode of the diode D4, the first end of the resistor P4 on the processor U4 is respectively connected with the first end of the capacitor R4 and the first end of the capacitor C4 on the processor U4, the second end of the resistor R25 is connected with the negative electrode of a power supply, the second end of the capacitor C5 is grounded, a pin P4 on the processor U2 is respectively connected with the first end of the resistor R26 and the first end of the capacitor C6, the second end of the capacitor C6 is grounded, the second end of the resistor R26 is connected with the positive electrode of the power supply, a pin P6 on the processor U2 is grounded, and the processor U2 is an OP07 operational amplifier.
10. The pipeline flaw detection device according to claim 1, wherein the A/D conversion module (22) is composed of an A/D conversion circuit, the A/D conversion circuit includes a processor U3, a processor U4, an input terminal IN3, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R31, a resistor R32, a resistor R33, a capacitor C33 and a variable resistor RP 33, the pin A33 of the processor U33 is respectively connected with a first end of the resistor R33 and a first end of the resistor R33, the second end of the resistor R33 is grounded, the second end of the resistor R33 is respectively connected with the pin A33 of the processor U33 and a first end of the variable resistor RP 33, the pin A33 of the processor U33 is respectively connected with the first end of the resistor R33, the first end of the resistor R33 and the first end of the resistor R33, a second end of the resistor R28 is connected to a positive power supply, a second end of the resistor R29 is connected to the input terminal IN3, a second end of the resistor R30 is grounded, a pin a3 of the processor U3 is connected to a first end of the capacitor C7 and a first end of the resistor R32, a second end of the capacitor C7 is grounded, a second end of the resistor R32 is connected to the positive power supply, a pin a6 of the processor U3 is grounded, a pin a4 of the processor U3 is connected to a first end of the resistor R33 and a first end of the capacitor C8, a second end of the resistor R8 is connected to the positive power supply, a second end of the capacitor C8 is grounded, a second end of the variable resistor RP 8 is grounded, a sliding end of the variable resistor RP 8 is connected to a pin B8 of the processor U8 through the resistor R8, a pin B8 of the processor U8 is grounded through the pin B8 and a pin B8 of the capacitor U8, the capacitor C10 is connected in parallel between a pin B3 of the processor U4 and a pin B4 of the processor U4, one end of the capacitor C10 close to the pin B3 of the processor U4 is grounded, one end of the capacitor C10 close to the pin B4 of the processor U4 is connected to a positive electrode of a power supply, the processor U3 is an OP07 operational amplifier, and the processor U4 is an AD 1110.
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| CN201810068979.4A CN108303458B (en) | 2018-01-24 | 2018-01-24 | Pipeline detection device that detects a flaw |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55114949A (en) * | 1979-02-27 | 1980-09-04 | Kubota Ltd | Flaw detector of tube material |
| US5279160A (en) * | 1990-08-07 | 1994-01-18 | Nukem Gmbh | Array for non-destructive material testing of cylindrical workpieces by means of electrodynamic ultrasonic measurement |
| CN2205556Y (en) * | 1993-08-03 | 1995-08-16 | 曾德文 | Shaft neck and pipe crack detector |
| JP2006313081A (en) * | 2005-05-06 | 2006-11-16 | Chugoku Regional Development Bureau Ministry Of Land Infrastructure & Transport | Flaw detector |
| CN103439415A (en) * | 2013-09-09 | 2013-12-11 | 长沙理工大学 | Electromagnetic ultrasonic automatic detection crawler for exposed pipeline |
| CN106198637A (en) * | 2016-09-18 | 2016-12-07 | 中国石油大学(华东) | A kind of multi-electrode direct imaging for jacket tube defects detection is popped one's head in |
-
2018
- 2018-01-24 CN CN201810068979.4A patent/CN108303458B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55114949A (en) * | 1979-02-27 | 1980-09-04 | Kubota Ltd | Flaw detector of tube material |
| US5279160A (en) * | 1990-08-07 | 1994-01-18 | Nukem Gmbh | Array for non-destructive material testing of cylindrical workpieces by means of electrodynamic ultrasonic measurement |
| CN2205556Y (en) * | 1993-08-03 | 1995-08-16 | 曾德文 | Shaft neck and pipe crack detector |
| JP2006313081A (en) * | 2005-05-06 | 2006-11-16 | Chugoku Regional Development Bureau Ministry Of Land Infrastructure & Transport | Flaw detector |
| CN103439415A (en) * | 2013-09-09 | 2013-12-11 | 长沙理工大学 | Electromagnetic ultrasonic automatic detection crawler for exposed pipeline |
| CN106198637A (en) * | 2016-09-18 | 2016-12-07 | 中国石油大学(华东) | A kind of multi-electrode direct imaging for jacket tube defects detection is popped one's head in |
Non-Patent Citations (2)
| Title |
|---|
| The Effect of Motion-Induced Eddy Current on Circumferential Magnetization in MFL Testing for a Steel Pipe;Wu jianbo et al.;《IEEE TRANSACTIONS ON MAGNETICS》;20170731;第53卷(第7期);第1-6页 * |
| 钢管漏磁在线检测技术的研究;王太勇 等;《计量学报》;20021031;第23卷(第4期);第299-302页 * |
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