CN203190048U - Pipeline inspection device based on piezomagnetic effect - Google Patents

Pipeline inspection device based on piezomagnetic effect Download PDF

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Publication number
CN203190048U
CN203190048U CN 201320112479 CN201320112479U CN203190048U CN 203190048 U CN203190048 U CN 203190048U CN 201320112479 CN201320112479 CN 201320112479 CN 201320112479 U CN201320112479 U CN 201320112479U CN 203190048 U CN203190048 U CN 203190048U
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connecting rod
device based
body fuselage
fixed
detection device
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CN 201320112479
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Chinese (zh)
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包胜
林立
楼航飞
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Abstract

The utility model discloses a pipeline inspection device based on a piezomagnetic effect. The pipeline inspection device comprises a device body outer shell, a body operating mechanism, a propeller starting mechanism, a plurality of driving connecting rod idler wheel mechanisms, a plurality of driven connecting rod idler wheel mechanisms and a plurality of signal collecting and processing mechanisms. The device body outer shell is composed of a device body and a device tail in a connecting mode. The body operating mechanism is arranged inside the device body outer shell. The propeller starting mechanism is fixed on the tail portion of the device body outer shell. The driving connecting rod idler wheel mechanisms are evenly fixed on the device tail of the device body outer shell along the circumference. The driven connecting rod idler wheel mechanisms are evenly fixed on the device body of the device body outer shell along the circumference. Each driven connecting rod idler wheel mechanism is connected with one signal collecting and processing mechanism through direct inserting into an IDC interface. By means of the pipeline inspection device based on the piezomagnetic effect, detecting and positioning can be conducted automatically in a long-distance mode inside a pipeline in which petroleum transportation is not stopped, an important means is provided for nondestructive testing inside the pipeline, and therefore the pipeline inspection device is of great significance to guaranteeing safe, stable and long-time running of the pipeline.

Description

A kind of pipe detection device based on magnetoelastic effect
Technical field
The utility model relates to oil and gas pipes detection technique field, relates in particular to a kind of pipe detection device based on magnetoelastic effect.
Background technique
China is energy big country, also be the country that energy consumption is number two simultaneously, and energy consumption is in rising trend, and therefore, the oil movement and storage technology has had development to a certain degree under such environment promotes.The main mode of China's oil accumulating or pipeline transport, reform and opening-up in decades, the oil delivering pipe is popularized gradually, wherein northeastward, Central-South, Central China and East China all set up the oil transport network, especially the Northwest has also realized perforation.In addition, oil zone accumulating net has all been set up in the area to the east of area, Chongqing of Sichuan and Hebei.This shows that the petroleum pipeline accumulating of China has layout wide, intersect intensive characteristics, building the lifting that has aspect pipeline, management means and the operation to a certain degree.
Because the particularity of oil, several factors all may cause occurring security incident.Wherein corrosive pipeline is main in all accidents of oil movement and storage pipeline.The corrosive pipeline situation mainly contains: because buried pipeline under the different influence of the gas permeability of soil, causes corrosion.Corrosive pipeline can allow pipe wall gradually weak, be out of shape, break, even accident such as oil leakage appears.The China's oil exploitation has had half a century, because wherein a lot of pipelines are long working time, aging phenomenon occurs, owing to be in the underground for a long time, chemical corrosion must appear in the continuous influence of soil, thereby holiday occurs.
Though traditional non-destructive inspection (NDT) method (ultrasonic, magnetic, infiltration, eddy current and ray etc.) has been widely used in industrial detection, but it has its narrow limitation: (1) can only seek the defective that has existed, the position that defective will take place can not be found and predict, the sudden destruction of equipment can't be solved; Generally need checked object to quit work when (2) detecting; (3) the checked object surface is removed pretreatment such as coating, polishing, efficient is low, the cost height; (4) accuracy of testing result is subjected to factor affecting such as workpiece shape, structure and Personnel Skill Levels; (5) on-the-spot detection working condition is poor, and the labor intensity height is difficult to avoid omission.
The nineties in 20th century, Russian professor Doubov takes the lead in proposing the metal magnetic memory theory.The magnetic property that the metal magnetic memory detection technology utilization is in the ferromagnetic metal in the magnetic field of the earth produces irreversible change in stress and distortion concentration zones, permeability transition appears at metal and air boundary, its surface produce leakage magnetic field just can can't harm, quick, convenient, determine that the structural stress of ferromagnetic metal concentrates and the texturing zone exactly, be section and position the most dangerous on the equipment, and then the fatigue crack on the discovery main shaft and its expansion trend of prediction, thereby carry out the diagnosis in intensity and life-span.Compare with traditional nondestructive detecting method, not only can detect moulding distortion and the macroscopic cracking of ferromagnetic material, more can effectively detect the deathtrap that the early stage stress of ferromagnetic material is concentrated.This new detection technique can overcome the deficiency of traditional nondestructive detecting method, be undoubtedly a kind of new nondestructive detecting method that metal construction is carried out early diagnosis, therefore, be subjected to countries in the world colleague's attention once coming out, competitively conduct a research, and begun to apply in departments such as electric power, boilers and pressure vessels.
In sum, the utility model provides a kind of pipe detection device based on magnetoelastic effect, and to improving the safety detection technology level of domestic oil and gas pipes, timely and effective preventing has very important meaning because pipe damage destroys the security incident that causes.
The model utility content
In order to improve the safety detection technology level of domestic oil and gas pipes, timely and effective preventing destroyed the security incident that causes because of pipe damage.The utility model provides a kind of pipe detection device based on magnetoelastic effect, and the utility model can be grown distance and automatically detect and locate at the pipe interior that does not stop the oil transport.
In order to achieve the above object, the utility model provides following technological scheme: a kind of pipe detection device based on magnetoelastic effect, and it comprises body fuselage, main body travelling mechanism, airscrew engine structure, some drive connecting rod roller mechanisms, some follower link roller mechanisms and some signal acquisition process mechanism; Wherein, described body fuselage is connected to form by fuselage and tail; The main body travelling mechanism places in the body fuselage; The airscrew engine structure is fixed in the body fuselage afterbody; The drive connecting rod roller mechanism evenly is fixed on the tail of body fuselage along circumference, the follower link roller mechanism evenly is fixed on the fuselage of body fuselage along circumference; Each follower link roller mechanism connects a signal acquisition process mechanism by IDC interface straight cutting.
Further, described body fuselage is streamlined.
Further, described main body travelling mechanism comprises data acquisition module, GPS locating module and wireless signal transmission receiving module; Data acquisition module comprises data collecting card, single-chip microcomputer and storage card, and GPS locating module, wireless signal transmission receiving module, data collecting card and storage card all link to each other with single-chip microcomputer, and the GPS locating module links to each other with the wireless signal transmission receiving module.
Further, described airscrew engine structure comprises device motor and propeller cavitation, and motor places in the body fuselage and with single-chip microcomputer and links to each other, and the output shaft of motor stretches out body fuselage and links to each other with propeller cavitation.
Further, described drive connecting rod roller mechanism and follower link roller mechanism are connected to form by changeable length connecting rod and roller, the changeable length connecting rod comprises fixing rod, motion bar and spring, the external spring of fixing rod and the local motion bar inside that embeds, the fixing rod end is shape of threads, be inserted and secured on the body fuselage, head end is T type shape projection, is stuck in the cavity of motion bar; Roller comprises connecting rod and two wheels, and connecting rod passes the end of motion bar, and two wheels are separately fixed at the two ends of connecting rod.
Further, described drive connecting rod roller mechanism also comprises motor, small gear, gearwheel and stroke sensor, and motor is fixed in the motion bar, and small gear links to each other with the output shaft of motor, gearwheel be installed on the connecting rod of roller and and pinion, motor links to each other with single-chip microcomputer; Stroke sensor is fixed on the wheel.
Further, the end of the motion bar of described follower link roller mechanism has the IDC jack, and the output line of IDC jack links to each other with data collecting card.
Further, described signal acquisition process mechanism comprises L type shell, three-dimensional magnetoresistive transducer, discharge circuit, filtering circuit and IDC interface, three-dimensional magnetoresistive transducer is fixed in the top in the L type shell, the IDC interface is fixed on L type shell afterbody, and three-dimensional magnetoresistive transducer, discharge circuit, filtering circuit and IDC interface are connected by datawire successively.
The beneficial effects of the utility model are, the utility model can be grown distance and automatically detect and locate at the pipe interior that does not stop the oil transport, and under fluid free condition, still can finish testing by the automatic driving function of roller, this has improved its applicability and convenience.By the wireless signal transmission data, remote auto control detection device.Its detection technique adopts new detection mode especially---and magnetic is remembered, and has overcome the deficiency of traditional nondestructive detecting method.Advanced scientific and technological navigation system can monitor the residing particular location of device at any time, and will gather the measured data in this position, by being wirelessly transmitted to outside computer system, will locate and analyze integrated.Improve the safety detection technology level of domestic oil and gas pipes, timely and effective preventing has very important meaning because pipe damage destroys the security incident that causes.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
The pipe detection device schematic representation based on magnetoelastic effect that Fig. 1 provides for the utility model embodiment;
The impermeable airtight body linkage structure schematic representation that Fig. 2 provides for the utility model embodiment;
The schematic representation of the changeable length connecting rod that Fig. 3 provides for the utility model embodiment;
The roller structure schematic representation that Fig. 4 provides for the utility model embodiment;
Fig. 5 moves schematic representation for the motor gear of the drive connecting rod roller mechanism that the utility model embodiment provides;
The schematic representation of the signal acquisition process mechanism profile that Fig. 6 provides for the utility model embodiment;
The fundamental diagram of the signal acquisition process mechanism that Fig. 7 provides for the utility model embodiment;
The single chip control module operational flow diagram that Fig. 8 provides for the utility model embodiment;
The pipe detection device structural principle schematic representation based on magnetoelastic effect that Fig. 9 provides for the utility model embodiment;
Among the figure, body fuselage 1, airscrew engine structure 2, drive connecting rod roller mechanism 3, follower link roller mechanism 4, signal acquisition process mechanism 5, propeller cavitation 6, changeable length connecting rod 7, roller 8, fixing rod 9, motion bar 10, spring 11, motor 12, small gear 13, gearwheel 14.
Embodiment
Below in conjunction with drawings and Examples, technical solutions of the utility model are further described.
The utility model embodiment provides a kind of pipe detection device based on magnetoelastic effect, comprises body fuselage 1, main body travelling mechanism, airscrew engine structure 2, some drive connecting rod roller mechanisms 3, some follower link roller mechanisms 4 and some signal acquisition process mechanism 5.As shown in Figure 1, body fuselage 1 is closely connected to form by bolt by fuselage and tail; The main body travelling mechanism places impermeable airtight body fuselage 1 inside; Airscrew engine structure 2 is fixed in body fuselage 1 afterbody; Drive connecting rod roller mechanism 3 evenly is fixed on the tail of body fuselage 1 along circumference, follower link roller mechanism 4 evenly is fixed on the fuselage of body fuselage 1 along circumference; Each follower link roller mechanism 4 connects a signal acquisition process mechanism 5 by IDC interface straight cutting.
Impermeable airtight body fuselage 1 is streamlined, being conducive to device reduces resistance and moves ahead in fluid, as shown in Figure 2, fuselage and tail periphery joint all corresponding have some along the evenly distributed bolt hole of circumference, connect by bolt, its purpose is for the ease of the work of maintenance and inspection main body travelling mechanism.Under the condition of oil and gas pipes proper functioning, infiltrate device inside in order to prevent oil, protection inside subject travelling mechanism need connect the disposal rubber seal.
Shown in Fig. 8,9, the main body travelling mechanism comprises data acquisition module, GPS locating module and wireless signal transmission receiving module; Data acquisition module comprises data collecting card, single-chip microcomputer and storage card, and GPS locating module, wireless signal transmission receiving module, data collecting card and storage card all link to each other with single-chip microcomputer, and the GPS locating module links to each other with the wireless signal transmission receiving module.
The operating instruction that the outside computer system that receives single-chip microcomputer transmits by wireless signal normally moves device and makes the data collecting card image data, data is carried out the AD conversion be stored in the storage card.Simultaneously, single-chip microcomputer can instruct the data in the storage card to pass to outside computer system by wireless signal, and is carried out the analysis of data by outside computer system.
The wireless signal transmission receiving module with data and the location by being wirelessly transmitted to outside computer system; Can receive simultaneously the operation of the command remote control device that outside computer system sends by wireless signal.
The GPS locating module has been realized this device model utility in the position of oil and gas pipes inside Primary Location function, can adopt the product of the Britain GPS-41BTM of RESOLUTIONS company model to realize, but be not limited only to this; The wireless signal transmission receiving module has been realized data transmission and the Remote function of this device model utility and outside computer system, can adopt the product of the U.S. DR3100 of RF MONOLITHICS company model to realize, but be not limited only to this.
Airscrew engine structure 2 comprises device motor and propeller cavitation 6, the motor (not shown) places the tail place of the impermeable airtight body fuselage 1 of device, and link to each other with single-chip microcomputer, the output shaft of motor stretches out body fuselage 1 and links to each other with propeller cavitation 6, propeller cavitation 6 is made up of some blades, 6 rotations of engine-driving propeller cavitation freely move ahead in oil body thereby drive the utility model.
Shown in Fig. 3,4 and 5, drive connecting rod roller mechanism 3 and follower link roller mechanism 4 are connected to form by changeable length connecting rod 7 and roller 8, changeable length connecting rod 7 comprises fixing rod 9, motion bar 10 and spring 11, fixing rod 9 external springs 11 and local motion bar 10 inside that embed, its objective is and allow connecting rod that certain extendable room can be arranged, make drive connecting rod roller mechanism 3 and follower link roller mechanism 4 tightly prop up tube inner wall, avoid taking place relative slip, and be conducive to the oil and gas pipes or the tapered pipeline that allow the utility model be applicable to different-diameter; Fixing rod 9 ends are shape of threads, and its effect is enough to insert and to be fixed on the impermeable airtight body fuselage 1, is convenient to dismounting simultaneously; Head end T type shape projection can be blocked motion bar 10 and prevents from coming off; Motion bar 10 borings, roller 8 comprise connecting rod and two wheels, and connecting rod passes the end of motion bar 10, and two wheels are separately fixed at the two ends of connecting rod.Roller 8 can make device move freely at pipe interior.In addition, drive connecting rod roller mechanism 3 also comprises motor 12, small gear 13 and gearwheel 14 and stroke sensor, motor 12 is fixed in the motion bar 10, small gear 13 links to each other with the output shaft of motor 12, gearwheel 14 be installed on the connecting rod of roller 8 and with small gear 13 engagements, motor 12 links to each other with single-chip microcomputer.Instruct by the outside computer system transmission of wireless signals to make motor 12 operation to single-chip microcomputer, roller 8 is advanced with certain speed or retreat by small gear 13 and gearwheel 14, be mainly used in the operation of the environmental conditions lower device of pipe interior no liquid effect.Stroke sensor is fixed on the wheel, and when roller rolls at inner-walls of duct, stroke sensor will be triggered, and transfers to the distance that the data capture card recording apparatus moves by datawire; The end of the motion bar 10 of follower link roller mechanism 4 has the IDC jack, and the output line of IDC jack links to each other with data collecting card.
As Fig. 6, shown in 7, signal acquisition process mechanism 5 comprises L type shell, three-dimensional magnetoresistive transducer, discharge circuit, filtering circuit and IDC interface, three-dimensional magnetoresistive transducer, discharge circuit and filtering circuit are fixed in the L type shell, the IDC interface is fixed on L type shell afterbody, three-dimensional magnetoresistive transducer, discharge circuit, filtering circuit is connected by datawire successively with the IDC interface, three-dimensional magnetoresistive transducer is fixed in the top in the L type shell, its objective is that the opposite direction in order to allow each three-dimensional magnetoresistive transducer survey is identical, and be in a position that is conducive to receive field signal; The function of the three-dimensional built-in zeroing of magnetoresistive transducer and eliminating external interference makes it more be conducive to collect data and comparing data; The IDC interface can link to each other with the IDC socket of follower link roller mechanism 4 ends, its objective is that the distance that makes between three-dimensional magnetoresistive transducer and inner surface of pipeline keeps constant, in order in testing process, improve testing precision, be convenient to check replacing signal acquisition process mechanism arrangement simultaneously, make it can keep proper functioning, be convenient to connect; The effect separately of discharge circuit and filtering circuit mainly is to play amplifying signal and trap signal, and last and data capture card connection is converted into digital signal collection with the analogue signal that forms.
In actual applications, the utility model device and outside computer system are transmitted data by wireless signal, so outside computer system comprises oil and gas pipes Distribution and localization system and data analysis system.Oil and gas pipes Distribution and localization system mainly cooperates with the GPS navigation system of installing, and can obtain the residing position of device at any time; Data analysis system is analyzed the data that device collects, and makes alarm and mark.Because the utility model magnetoresistive transducer can be sensed the magnetic field that the ferromagnetic metal surface produces, the magnetic field data that collects for fear of influence, all cannings of the utility model device are non-ferromagnetic metal, and the device motor is by special molybdenum material parcel shielding internal magnetic field.In addition, the utility model need have the impermeable grade of height, and all screw threads or bolt connection part all need high strength fixedly connected, and rubber ring is placed jointing, strengthen its impermeable ability, described device is detected at the pipe interior that does not stop the oil transport ensured.
Working procedure of the present utility model is as follows: outside computer system sends instruction to the single-chip microcomputer of the utility model inside by the form of wireless signal, after single-chip microcomputer is received instruction, just drives the normal operation of other each parts in the utility model.Under the situation of oil and gas pipes proper functioning, single-chip microcomputer just drives airscrew engine structure 2 after receiving instruction, makes the motor entry into service, propeller cavitation 6 rotations, thus impel the utility model device to advance; Do not have at oil and gas pipes under the situation of fluid, single-chip microcomputer just drives the motor 12 in the drive connecting rod roller mechanism 3, its roller 8 is advanced with certain speed or retreats.In the operation of the utility model device, single-chip microcomputer director data capture card begins to gather magnetic field data and run-length data, and be kept in the storage card, by wireless signal data and location are transferred to outside computer system again, till single-chip microcomputer is received instruction out of service.
The pipe detection device based on magnetoelastic effect that the utility model is implemented to provide has following advantage: 1, adopted new detection mode, enter the region of stress concentration that pipe interior detects inwall by device, only detect pipeline before having remedied and to enter inner blind spot outward; 2, adopted wireless remote control function, can be by whole monitorings of outside computer system operation equipment; 3, adopt the propeller type booster rocket, utilize the effect of the fluid movement of advancing, need not to stop pipeline work, improved applicability and convenience; 4, device has automatic walking function, under fluid free condition, still can finish testing by telecontrol; 5, Xian Jin scientific and technological navigation system can monitor the residing particular location of device at any time, and will gather the measured data in this position, by being wirelessly transmitted to outside computer system, will locate and analyze integrated.
The above specific embodiment; the purpose of this utility model, technological scheme and beneficial effect are further described; institute is understood that; the above is only to specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (8)

1. pipe detection device based on magnetoelastic effect, it is characterized in that it comprises body fuselage (1), main body travelling mechanism, airscrew engine structure (2), some drive connecting rod roller mechanisms (3), some follower link roller mechanisms (4) and some signal acquisition process mechanisms (5); Wherein, described body fuselage (1) is connected to form by fuselage and tail; The main body travelling mechanism places in the body fuselage (1); Airscrew engine structure (2) is fixed in body fuselage (1) afterbody; Drive connecting rod roller mechanism (3) evenly is fixed on the tail of body fuselage (1) along circumference, follower link roller mechanism (4) evenly is fixed on the fuselage of body fuselage (1) along circumference; Each follower link roller mechanism (4) connects a signal acquisition process mechanism (5) by IDC interface straight cutting.
2. according to the described pipe detection device based on magnetoelastic effect of claim 1, it is characterized in that described body fuselage (1) is streamlined.
3. according to the described pipe detection device based on magnetoelastic effect of claim 1, it is characterized in that described main body travelling mechanism comprises data acquisition module, GPS locating module and wireless signal transmission receiving module; Data acquisition module comprises data collecting card, single-chip microcomputer and storage card, and GPS locating module, wireless signal transmission receiving module, data collecting card and storage card all link to each other with single-chip microcomputer, and the GPS locating module links to each other with the wireless signal transmission receiving module.
4. according to the described pipe detection device based on magnetoelastic effect of claim 1, it is characterized in that, described airscrew engine structure (2) comprises device motor and propeller cavitation (6), motor places in the body fuselage (1) and with single-chip microcomputer and links to each other, and the output shaft of motor stretches out body fuselage (1) and links to each other with propeller cavitation (6).
5. according to the described pipe detection device based on magnetoelastic effect of claim 1, it is characterized in that, described drive connecting rod roller mechanism (3) and follower link roller mechanism (4) are connected to form by changeable length connecting rod (7) and roller (8), changeable length connecting rod (7) comprises fixing rod (9), motion bar (10) and spring (11), the external spring of fixing rod (9) (11) and local motion bar (10) inside that embeds, fixing rod (9) end is shape of threads, be inserted and secured on the body fuselage (1), head end is T type shape projection, is stuck in the cavity of motion bar (10); Roller (8) comprises connecting rod and two wheels, and connecting rod passes the end of motion bar (10), and two wheels are separately fixed at the two ends of connecting rod.
6. according to the described pipe detection device based on magnetoelastic effect of claim 5, it is characterized in that, described drive connecting rod roller mechanism (3) also comprises motor (12), small gear (13), gearwheel (14) and stroke sensor, motor (12) is fixed in the motion bar (10), small gear (13) links to each other with the output shaft of motor (12), gearwheel (14) be installed on the connecting rod of roller (8) and with small gear (13) engagement, motor (12) links to each other with single-chip microcomputer; Stroke sensor is fixed on the wheel.
7. according to the described pipe detection device based on magnetoelastic effect of claim 5, it is characterized in that the end of the motion bar (10) of described follower link roller mechanism (4) has the IDC jack, the output line of IDC jack links to each other with data collecting card.
8. according to the described pipe detection device based on magnetoelastic effect of claim 1, it is characterized in that, described signal acquisition process mechanism (5) comprises L type shell, three-dimensional magnetoresistive transducer, discharge circuit, filtering circuit and IDC interface, three-dimensional magnetoresistive transducer is fixed in the top in the L type shell, the IDC interface is fixed on L type shell afterbody, and three-dimensional magnetoresistive transducer, discharge circuit, filtering circuit and IDC interface are connected by datawire successively.
CN 201320112479 2013-03-12 2013-03-12 Pipeline inspection device based on piezomagnetic effect Expired - Lifetime CN203190048U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103115245A (en) * 2013-03-12 2013-05-22 包胜 Pipeline detection device based on piezomagnetic effect
CN114623954A (en) * 2020-12-10 2022-06-14 中国石油天然气集团有限公司 Internal detection device and equipment for detecting stress of oil and gas pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103115245A (en) * 2013-03-12 2013-05-22 包胜 Pipeline detection device based on piezomagnetic effect
CN114623954A (en) * 2020-12-10 2022-06-14 中国石油天然气集团有限公司 Internal detection device and equipment for detecting stress of oil and gas pipeline

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