GB2591573A - Self-power-generation system for in-pipeline detection - Google Patents

Self-power-generation system for in-pipeline detection Download PDF

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Publication number
GB2591573A
GB2591573A GB2018455.2A GB202018455A GB2591573A GB 2591573 A GB2591573 A GB 2591573A GB 202018455 A GB202018455 A GB 202018455A GB 2591573 A GB2591573 A GB 2591573A
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United Kingdom
Prior art keywords
power
self
generation
pipeline
cabin body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB2018455.2A
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GB202018455D0 (en
GB2591573B (en
Inventor
Tang Yinlong
Song Yunpeng
Zhang Wenqiang
Song Huadong
Guo Xiaoting
Zhu Haibo
Xu Chunfeng
Wang Yunan
Xu Yizhong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Academy of Instrumentation Science Co Ltd
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Shenyang Academy of Instrumentation Science Co Ltd
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Publication of GB202018455D0 publication Critical patent/GB202018455D0/en
Publication of GB2591573A publication Critical patent/GB2591573A/en
Application granted granted Critical
Publication of GB2591573B publication Critical patent/GB2591573B/en
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
    • F16L55/32—Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/005—Investigating fluid-tightness of structures using pigs or moles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1846—Rotary generators structurally associated with wheels or associated parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/30—Inspecting, measuring or testing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

A self-power-generation system for an in-pipeline detection vehicle (pig). A wheel set 202A frictionally rotates along the inner wall of the pipeline, and generates electricity using a generator 3 which is outside of the main body 1 of the pig. Generated power is supplied to a battery which is housed within the body 1. As power is generated in situ within the pipeline, the operation time of the detection system is increased. A switch 4 is also housed outside of the main body 1.

Description

SELF-POWER-GENERATION SYSTEM FOR IN-PIPELINE DETECTION
FIELD OF THE PRESENT DISCLOSURE
[0001] The invention relates to the technical field of pipeline detection, in particular to a self-power-generation system for in-pipeline detection.
BACKGROUND OF THE PRESENT DISCLOSURE
[0002] The oil pipeline for conveying petroleum and the gas pipeline for conveying natural gas are pipelines for conveying petroleum and gas in the country, and are called national energy arteries, and have important significance for guaranteeing the national 10 energy supply.
[0003] With the aging of the pipeline in service, various types of defects will appear inside the pipeline due to corrosion and stress. Therefore, it is necessary to detect the interior of the pipeline regularly and timely to eliminate the defects in the interior of the pipeline to reduce the occurrence of pipeline cracking accidents.
[0004] At present, detectors are commonly used to detect defects inside pipelines. In order to realize the normal operation of a detector, the detector adopts a built-in battery to supply power for the detection unit and the control system of the detector. Because the built-in battery carries a limited amount of electricity, the detector needs to be maintained after a period of operation inside the pipeline to replace the built-in battery.
After replacing the built-in battery, the internal detection of the next section of the pipeline is performed. Therefore, the built-in battery with limited battery capacity has a certain limitation on the detection mileage of the detector, so that the detection efficiency is low. In addition, the cost of the built-in battery used by the detector for detecting the internal defect of the pipeline is high, so that the detection cost is high due to the replacement of a large number of built-in batteries.
SUMMARY OF THE PRESENT DISCLOSURE
[0005] The invention provides a self-power-generation system for in-pipeline detection, which solves the problem of low detection efficiency caused by frequent replacement of a built-in battery of an existing detector for detecting internal defects of a pipeline. [0006] The invention provides a self-power-generation system for in-pipeline detection, wherein the self-power-generation system comprises a power generation cabin body, a charge-discharge assembly positioned inside the power generation cabin body, and a self-power-generation assembly and a switch both positioned outside the power generation cabin body; the charge-discharge assembly is electrically connected with the self-power-generation assembly and the switch respectively; the self-power-generation assembly frictionally rotates along the inner wall of the pipeline.
[0007] Preferably, the self-power-generation assembly comprises a power generation coil and a wheel set, and magnetic steel is provided on the wheel set; the wheel set frictionally rotates along the inner wall of the pipeline, and the power generation coil cuts the magnetic line of the magnetic steel; the power generation coil is electrically connected with the charge-discharge assembly through a lead line.
[0008] Preferably, the self-power-generation assembly further comprises a base arranged outside the power generation cabin body and a support arm movably connected with the base; the power generation coil and the wheel set are arranged on the support arm, the wheel set is positioned at the end portion of the support arm, and the wheel set rotates on the support arm [0009] Preferably, connecting rods are movably arranged on two sides of the support arm respectively, and a spring is provided on the connecting rod; a stopper is arranged between the connecting rod and the spring; part of the stopper is positioned below the support arm.
[0010] Preferably, the wheel set comprises an intermediate steel wheel and auxiliary wheels located at two sides of the intermediate steel wheel, and the intermediate steel wheel and the auxiliary wheel rotate coaxially; a plurality of notches are formed in the outer periphery of the auxiliary wheel, and the interior of the notch is filled with the magnetic steel.
[0011] Preferably, at least two groups of the self-power-generation assembly are 30 arranged outside the power generation cabin body.
[0012] Preferably, the charge-discharge assembly comprises a battery base and a fixing plate; the battery base is fixedly connected with the fixing plate and an end cover of the power generation cabin body respectively; a battery is arranged between the battery base and the fixing plate; the fixing plate is provided with a switching circuit board, and the switching circuit board is electrically connected with the battery and the self-power-generation assembly respectively [0013] Preferably, a seal ring is provided between the end cover and the battery base. [0014] Preferably both end portions of the power generation cabin body are provided with a support cup and a support plate, and the support cup is located between the 10 power generation cabin body and the support plate.
[0015] Preferably the end portion of the power generation cabin body is provided with a universal joint, which is connected with a detector.
[0016] The technical scheme provided by the embodiments of the present invention may include the following beneficial effects.
[0017] The application provides a self-power-generation system for in-pipeline detection. When the wheel set frictionally rotates along the inner wall of the pipeline, the magnetic steel on the wheel set is driven to rotate. The rotation of the magnetic steel enables the power generation coil to cut the magnetic line of the magnetic steel, the magnetic flux in the power generation coil is changed, and then alternating current is generated in the power generation coil. Alternating current generated by the power generation coil is introduced into a charge-discharge assembly through the lead line, and then the detector is charged by the charge-discharge assembly, so that spontaneous charging of the detector during detection in natural gas, petroleum and other conveying pipelines is realized, and working mileage and continuous working time of the detector are effectively prolonged. On the premise of the normal operation of the self-power-generation system, the detector can be charged in real time, the working time of the detector is prolonged, and the detection efficiency of the detector is greatly improved. The self-power-generation system provided by the application has a simple and reliable structure, can set different numbers of the self-power-generation assembly according to the diameter of the pipeline, and improves the economic applicability of the self-power-generation system.
[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to explain the technical scheme of the present application more clearly, the following will briefly introduce the accompanying drawings needed in the embodiments. Obviously, for those of ordinary skills in the art, other drawings can be obtained from these drawings without involving inventive efforts.
[0020] FIG. 1 is a schematic view showing the structure of a self-power-generation system for in-pipe detection according to an embodiment of the present invention. [0021] FIG. 2 is a schematic view showing the structure of a self-power-generation assembly according to an embodiment of the present invention.
[0022] FIG. 3 is a schematic view showing the structure of a wheel set according to an embodiment of the present invention.
[0023] FIG. 4 is a schematic view showing the structure of a charge-discharge assembly according to an embodiment of the present invention.
[0024] FIG. 5 is an operational state view of a self-power-generation system for in-pipe detection according to an embodiment of the present invention.
[0025] List of reference numerals in the drawings: 01 power generation cabin body 02 charge-discharge assembly 03 self-power-generation assembly 04 switch 05 pipeline 1 power generation coil 2 wheel set 3 lead line 4 base support arm 6 connecting rod 7 spring 8 stopper 9 battery base fixing plate 11 end cover 12 battery 13 switching circuit board 14 seal ring support cup 16 support plate 17 universal joint 18 first connecting shaft 19 second connecting shaft screw 21 third connecting shaft 22 fastener 23 input charging line 24 output power supply line long stud 201 magnetic steel 202 intermediate steel wheel 203 auxiliary wheel 204 notch
DESCRIPTION OF THE EMBODIMENTS
[0026] Referring to FIGS. 1 and 5, FIG. 1 shows a schematic view of the structure of a self-power-generation system for in-pipe detection provided by an embodiment of the present application. FIG. 5 shows an operational state diagram of a self-power-generation system for in-pipe detection according to an embodiment of the present application. As can be seen from figures 1 and 5, the self-power-generation system for in-pipeline detection provided by the embodiment of the application comprises a power generation cabin body 01, a charge-discharge assembly 02, a self-power-generation assembly 03 and a switch 04. The charge-discharge assembly 02 is located inside the power generation cabin body 01, the self-power-generation assembly 03 and the switch 04 are located outside the power generation cabin body 01, and the charge-discharge assembly 02 is electrically connected with the self-power-generation assembly 03 and the switch 04 respectively. The self-power-generation assembly 03 is capable of frictionally rotating along the inner wall of the pipeline 05, thereby generating an electric current in a self-power-generation manner Since the self-power-generation assembly 03 is electrically connected with the charge-discharge assembly 02, the current generated by the self-power-generation assembly 03 is transmitted to the charge-discharge assembly 02 to charge the battery 12 inside the charge-discharge assembly 02.
[0027] Specifically, the power generation cabin body 01 is a shell component of the self-power-generation system for in-pipeline detection provided by the embodiment of the application, and is mainly used for arranging the charge-discharge assembly 02, the self-power-generation assembly 03 and the switch 04, and is also used for sealing and protecting the internal charge-discharge assembly 02. Because the conveying pipelines of natural gas, petroleum and the like are round pipes, the power generation cabin body 01 in the embodiment of the application is cylindrical. In order to prevent natural gas, petroleum and the like from entering the power generation cabin body 01, end covers 11 are arranged at two ends of the power generation cabin body 01 so as to seal the power generation cabin body 01 through the end cover 11.
[0028] Further, in order to facilitate the connection of the self-power-generation system with the detector, the end cover 11 in the embodiment of the present application is a flange end cover, that is, one side surface of the end cover 11 seals the power generation cabin body 01 and the other side surface is a flange structure. A universal joint 17 is arranged outside the end cover 11 of the power generation cabin body 01, and the end cover 11 is connected with the detector through the universal joint 17 arranged on the flange. Support cups 15 and support plates 16 are arranged on two end flanges of the power generation cabin body 01, and the support cup 15 is positioned between the support plate 16 and the power generation cabin body 01. The arrangement of the support cup 15 and the support plate 16 can support the power generation cabin body 01, thereby facilitating the operation of the self-power-generation system and the detector in the direction of the arrow in the pipeline 05, as shown in FIG. 5.
[0029] Switch 04 is a device for controlling the movement of the self-power-generation system for in-pipe detection provided by the embodiment of the present application in pipeline 05. To ensure proper operation of the self-power-generation system, switch 04 is activated before the self-power-generation system and the detector enter pipeline 05. Of course, switch 04 may also be activated by means of a pressure sensor trigger for automatic control.
[0030] The self-power-generation assembly 03 is arranged outside the power generation cabin body 01. In order to reduce the volume of the self-power-generation system and reasonably utilize the space, the self-power-generation assembly 03 is fixedly arranged close to the end cover 11 of the power generation cabin body 01. Reference is made to FIG. 2, which shows a schematic view showing the structure of a self-power-generation assembly according to an embodiment of the present application. As can be seen from FIG. 2, the self-power-generation assembly 03 in the embodiment of the present application includes a power generation coil 1 and a wheel set 2, and the wheel set 2 can rotate frictionally along the inner wall of the pipeline 05. The wheel set 2 is provided with magnetic steel 201, and the power generation coil 1 cuts the magnetic line of the magnetic steel 201. When the wheel set 2 rotates frictionally along the inner wall of the pipeline 05, the magnetic steel 201 on the wheel set 2 is driven to rotate. Due to the rotation of the magnetic steel 201, the power generation coil 1 cuts the magnetic line of the magnetic steel 201, and the magnetic flux in the power generation coil 1 is changed, and then alternating current is generated in the power generation coil 1.
Because the power generation coil 1 is electrically connected with the charge-discharge assembly 02 through lead line 3, the alternating current generated in the power generation coil 1 enters the charge-discharge assembly 02 through the lead line 3, and spontaneous charging of a detector during detection in conveying pipelines for natural gas, petroleum and the like is realized. Therefore, on the premise that the self-power-generation system provided by the embodiment of the application works normally, the detector can be charged in real time, the working time of the detector is prolonged, and the detection efficiency of the detector is greatly improved.
[0031] In order to facilitate the arrangement of the power generation coil 1 and the wheel set 2 outside the power generation cabin body 01, the self-power-generation assembly 03 further comprises a base 4 fixedly arranged outside the power generation cabin body 01 and a support arm 5 movably connected with the base 4. In order to achieve a movable connection of the base 4 with the support arm 5, the base 4 is pivotally connected with the support arm 5 via a first connecting shaft 18. More specifically, the base 4 and the end portion of the support arm 5 are pivotally connected through the first connecting shaft 18 so that the support arm 5 can rotate around the first connecting shaft 18 as its axis, thereby realizing the rotation of the wheel set 2 in the longitudinal sectional direction of the power generation cabin body 01. The longitudinal section of the power generation cabin body 01 is the cross section of the pipeline 05. [0032] A power generation coil 1 and a wheel set 2 are arranged on the support arm 5, and the power generation coil 1 is positioned between the support arm 5 and the wheel set 2. The power generation coil 1 is fixedly arranged on the support arm 5 through screws, bolts and the like. The wheel set 2 is located at the end portion of the support arm 5, and the wheel set 2 is arranged on the support arm 5 through a second connecting shaft 19 so that the wheel set 2 can rotate around the second connecting shaft 19 as its axis on the support arm 5, thereby realizing frictional rotation between the wheel set 2 and the inside of the pipeline 05.
[0033] Further, the wheel set 2 provided by the embodiment of the present application includes an intermediate steel wheel 202 and auxiliary wheels 203 located at both sides of the intermediate steel wheel 202, as shown in FIG. 3. The intermediate steel wheel 30 202 and the two auxiliary wheels 203 are connected by a second connecting shaft 19 and are further arranged on the support arm 5. To realize the coaxial circumferential rotation of the intermediate steel wheel 202 and the two auxiliary wheels 203, the intermediate steel wheel 202 and the two auxiliary wheels 203 are fixedly connected through a screw 20. In the embodiment of the present application, the outer periphery of the auxiliary wheel 203 is provided with a plurality of notches 204 filled with magnetic steel 201. Therefore, when the intermediate steel wheel 202 contacts and frictionally rotates on the inner wall of the pipeline 05, the intermediate steel wheel 202 can drive the two auxiliary wheels 203 to rotate, so that the magnetic steel 201 on the auxiliary wheels 203 is driven to rotate, the magnetic line of the magnetic steel 201 is cut by the power generation coil 1, and self-power-generation is finally realized.
[0034] Further, in order to enhance the structural stability of the power generation coil 1 and the wheel set 2 on the support arm 5, the support arm 5 in the embodiment of the present application is a symmetrical support arm as shown in FIG. 2. When the support arm 5 is a symmetrical support arm, one end of the symmetrical support arm is movably connected with two sides of the base 4 through the first connecting shaft 18, and the other end of the symmetrical support arm is provided with the wheel set 2 through the second connecting shaft 19. At this time, the wheel set 2 is located in the middle of the symmetrical support arm. When the support arm 5 is a symmetrical support arm, the power generation coil 1 is positioned on the inner side of the symmetrical support arm, and two groups of power generation coils 1 can be symmetrically arranged. Each group of power generation coil 1 can generate power with the magnetic steel 201 on the auxiliary wheel 203 through electromagnetic induction so that the power generation efficiency of the self-power-generation assembly 03 is improved.
[0035] In the conveying process of natural gas, petroleum and the like, pipeline 05 may have the conditions of turning, diameter change or pipe body deformation. In order to make the self-power-generation system provided by the embodiment of the application be applied to the conditions of turning, diameter change or pipe body deformation, the self-power-generation assembly 03 further comprises a connecting rod 6, a spring 7 and like components.
[0036] Specifically, connecting rods 6 are movably arranged on two sides of the support arm 5 respectively, and the connecting rod 6 is arranged on the support arm 5 through a third connecting shaft 21. Therefore, when the support arm 5 rotates around the first connecting shaft 18 as its axis, the support arm 5 can drive the connecting rod 6 to move. The connecting rod 6 is provided with a spring 7, and the connecting rod penetrates through the center of the spring 7. A stopper 8 is arranged between the connecting rod 6 and the spring 7, and the stopper 8 is fixed with the base 4. Alternatively, the stopper 8 and the base 4 can be integrally formed. One end of the connecting rod 6 away from the support arm 5 is provided with a fastener 22. One end of the spring 7 is fixed through the stopper 8, and the other end of the spring 7 is fixed at a position through the fastener 22. When the connecting rod 6 moves, the fastener 22 can be driven to move, so that the spring 7 can be elastically deformed between the stopper 8 and the fastener 22. The fastener 22 in embodiments of the present application may be a tightening component such as a nut, a stationary ring, or the like. As the end portion of the spring 7 is fixedly arranged through the stopper 8, when the spring 7 is elastically deformed, the spring 7 can drive the fastener 22 to move. The fastener 22 is connected with the connecting rod 6, and the connecting rod 6 is connected with the support arm 5, so that during the process when the fastener 22 is driven by the spring 7 to move, the support arm 5 is close to or away from the connecting rod 6, allowing the wheel set 2 to adapt to the diameter change of the pipeline 05, and the self-power-generation system can provide normal power generation for the pipeline 05 with different diameters.
[0037] With continued reference to FIG. 1, when the self-power-generation system does not enter the pipeline, the distance h1 between a contact point 202A of the intermediate steel wheel 202 and the central axis of the power generation cabin body 01 is greater than the radius h2 of the support cup 15 (h2 is always greater than the radius of the cross section of the pipeline 05). The contact point is the point on the outer circumference of the intermediate steel wheel 202 farthest from the central axis of the power generation cabin body 01.
[0038] According to the technical scheme shown in the embodiment, when the self-power-generation system does not enter the pipeline, the spring is in a compressed state, and the spring rebounding generates expansion force in the direction of the spring generation to the fastener 22; the expansion force can play a role in supporting the connecting rod 6, the support arm 5 and the wheel set 2, and the positions of the supporting connecting rod 6, the support arm 5 and the wheel set 2 are guaranteed to be fixed.
[0039] With continued reference to FIG. 5, when the self-power-generation system enters the pipeline, the radius of the cross-section of the pipeline 05 is smaller than hl, so that the intermediate steel wheel 202 needs to approach the central axis of the power generation cabin body 01, and at this time, the spring 7 pipeline exerts a force f on the intermediate steel wheel 202 toward the central axis of the power generation cabin body 01. When the self-power-generation system moves inside the pipeline, a frictional force is generated under the action of three factors, wherein the three factors are as follows: the outer wall of the intermediate steel wheel 202 is in contact with the inner wall of the pipeline; the acting force f is exerted by the pipeline on the intermediate steel wheel 202; the intermediate steel wheel 202 and the pipeline move relative to each other. Under the action of frictional force, the intermediate steel wheel 202 drives the auxiliary wheel 203 to rotate, and accordingly, the magnetic steel 201 positioned in the notch 204 on the outer periphery of the auxiliary wheel 203 rotates therewith. In the process that the magnetic steel 201 rotates, the power generation coil 1 cuts the magnetic line of the magnetic steel 201, and the magnetic flux in the power generation coil 1 is changed, and then alternating current is generated in the power generation coil 1.
[0040] When the detector and the self-power-generation system provided by the embodiment of the application pass through the pipeline 05 with a turn, a smaller diameter or a deformed pipe body, as the diameter of the pipeline 05 is reduced, the wheel set 2 is forced to approach to the direction of the power generation cabin body 01, and at the moment, the support arm 5 drives the connecting rod 6 to move in the direction of spring compression; under the driving of the connecting rod 6, the fastener 22 moves in the spring compression direction, and the spring 7 contracts. When the detector and the self-power-generation system provided by the embodiment of the application pass through the pipeline 05 with a larger diameter, as the diameter of the pipeline 05 is larger, the wheel set 2 has enough space in pipeline 2, and at the moment, the spring 7 releases elastic potential energy, elongates to recover deformation, pushes the fastener 22, drives the connecting rod (6) to move towards the expansion direction of the spring, and further pushes the support arm 5 to lift so that the wheel set 2 is brought close in a direction away from the power generation cabin body 01, and close to the pipeline 05.
[0041] In the embodiment of the application, the stopper 8 may be a baffle or nut or the like having a size larger than that of the connecting rod 6, and the baffle or nut or the like is positioned below the support arm 5. In addition, the stopper 8 can also be a baffle movably arranged on the base 4, the connecting rod 6 penetrates through the baffle, and at the moment, the baffle is also positioned below the support arm 5. The embodiment of the application does not limit the specific shape and structure of the stopper 8, so long as the sliding on the connecting rod 6 can be realized and the support arm 5 can be pushed and baffled.
[0042] Further, in order to improve the power generation effect and the power generation amount of the self-power-generation system, at least two groups of the self-power-generation assembly 03 outside the power generation cabin body 01 are provided according to the diameter of the pipeline 05 and the diameter of the detector, as shown in FIG. 5.
[0043] In the self-power-generation system provided by an embodiment of the application, the charge-discharge assembly 02 is positioned inside the power generation cabin body 01 and used for converting electric energy, storing electric energy and supplying electric energy to the switch 04 and the detector. Reference is made to FIG. 4, which is a schematic view showing the structure of a charge-discharge assembly provided in an embodiment of the present application. As shown in FIG.4, the charge-discharge assembly 02 in the embodiment of the present application comprises a battery base 9 and a fixing plate 10, wherein the battery base 9 is respectively fixedly connected with the fixing plate 10 and the end cover 11 of the power generation cabin body 01 so as to realize the connection between the charge-discharge assembly 02 and the power generation cabin body 01. A battery 12 for storing electric energy is provided between the battery base 9 and the fixing plate 10. The fixing plate 10 is provided with a switching circuit board 13 which electrically connects the battery 12 and the self-power-generation assembly 03, respectively. Therefore, the alternating current generated by the self-power-generation assembly 03 enters the switching circuit board 13, and the switching circuit board 13 converts the alternating current and stores the converted alternating current in the battery 12.
[0044] In order to realize the connection between the switching circuit board 13 and the self-power-generation assembly 03, the switching circuit board 13 is further provided with an input charging line 23, and the input charging line 23 is connected with the lead line 3 on the power generation coil 1 through a plug. Therefore, the alternating current generated by the power generation coil 1 enters the switching circuit board 13 through the lead line 3 and the input charging line 23, and enters the battery 12 after the conversion.
[0045] Further, in order to charge the detector component by the charge-discharge assembly 02, the switching circuit board 13 is further provided with an output power supply line 24, and the output power supply line 24 is led out to the outside of the power generation cabin body 01 through a waterproof pressure-resistant connector on the end cover 11 and is further connected with the detector component to provide electric energy.
[0046] In the embodiment of the application, in order to improve the connection strength between the battery base 9, the fixing plate 10 and the switching circuit board 13, the battery base 9, the fixing plate 10 and the switching circuit board 13 are fixedly connected through a plurality of long studs 25, and fixedly connected with the end cover 11 of the power generation cabin body 01. In order to improve the tightness between the battery base 9 and the end cover 11, a seal ring 14 is arranged between the battery base 9 and the end cover 11.
[0047] According to the self-power-generation system for in-pipeline detection provided by the embodiment of the application, when the wheel set 2 frictionally rotates along the inner wall of the pipeline 05, the magnetic steel 201 on the wheel set 2 is driven to rotate. Due to the rotation of the magnetic steel 201, the power generation coil 1 cuts the magnetic line of the magnetic steel 201, and the magnetic flux in the power generation coil 1 is changed, and then alternating current is generated in the power generation coil 1. Alternating current generated by the power generation coil 1 is introduced into the charge-discharge assembly 02 through the lead line 3, and then the detector is charged by the charge-discharge assembly 02, so that spontaneous charging of the detector during detection in natural gas, petroleum and other conveying pipelines is realized, and working mileage and continuous working time of the detector are effectively prolonged. On the premise of the normal operation of the self-power-generation system, the detector can be charged in real time, the working time of the detector is prolonged, and the detection efficiency of the detector is greatly improved. The self-power-generation system provided by the embodiment of the application has a simple and reliable structure, can set different numbers of self-power-generation assembly 03 according to the diameter of the pipeline 05, and improves the economic applicability of the self-power-generation system.
[0048] Other embodiments of the invention will be apparent to those skilled in the art from consideration of the description and practice of the disclosure of the invention herein. This application is intended to cover any variations, uses, or adaptive changes of the present invention. These variations, uses, or adaptive changes follow the general principles of the present invention and include common knowledge or conventional technical means in the technical field not disclosed by the present invention. It is intended that the description and embodiments should be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims. [0049] It is to be understood that relational terms such as "first" and "second", and the like are used solely to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any such actual relationship or order between such entities or operations. The invention is not limited to the precise arrangements described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the accompanying claims.

Claims (12)

  1. WHAT IS CLAIMED IS: 1. A self-power-generation system for in-pipeline detection, characterized in that the self-power-generation system comprises a power generation cabin body (01), a charge-discharge assembly (02) located inside the power generation cabin body (01), and a self-power-generation assembly (03) and a switch (04) both located outside the power generation cabin body (01); the charge-discharge assembly (02) is respectively and electrically connected with the self-power-generation assembly (03) and the switch (04); the self-power-generation assembly (03) frictionally rotates along an inner wall of a pipeline (05).
  2. 2. The self-power-generation system for in-pipeline detection according to claim 1, characterized in that the self-power-generation assembly (03) comprises a power generation coil (1) and a wheel set (2), and the wheel set (2) is provided with magnetic steel (201); the wheel set (2) frictionally rotates along the inner wall of the pipeline (05), and the power generation coil (1) cuts magnetic line of the magnetic steel (201); the power generation coil (1) is electrically connected with the charge-discharge assembly (02) through a lead line (3).
  3. 3. The self-power-generation system for in-pipeline detection according to claim 2, characterized in that the self-power-generation assembly (03) further comprises a base (4) arranged outside the power generation cabin body (01) and a support arm (5) movably connected with the base (4); the power generation coil (1) and the wheel set (2) are arranged on the support arm (5), the wheel set (2) is positioned at an end portion of the support arm (5), and the wheel set (2) rotates on the support arm (5).
  4. 4. The self-power-generation system for in-pipe detection according to claim 3, characterized by further comprising: a spring (7); wherein a stopper (8) is arranged on one side of the base (4); a connecting rod (6) is provided at one end of the support arm (5) adjacent to the base (4); the connecting rod (6) penetrates the stopper (8) and the spring (7); a fastener (22) is provided at one end of the connecting rod (6) away from the stopper (8); the spring (7) is located between the stopper (8) and the fastener (22); when an inner diameter of the pipeline is reduced, one end of the support arm (5) drives the wheel set (2) to move towards a direction close to the power generation cabin body (01), and the other end of the support arm (5) drives the fastener (22) to move towards compression direction of the spring (7) through the connecting rod (6); the spring (7) is compressed; when an inner diameter of the pipeline is increased, the spring (7) expands, and the fastener (22) is pushed to drive the connecting rod (6) to move towards an expansion direction of the spring, so that the connecting rod (6) pushes the support arm (5) to lift.
  5. 5. The self-power-generation system for in-pipeline detection according to claim 2, characterized in that the wheel set (2) comprises an intermediate steel wheel (202) and auxiliary wheels (203) located at two sides of the intermediate steel wheel (202), and the intermediate steel wheel (202) and the auxiliary wheel (203) rotate coaxially; a plurality of notches (204) are formed in an outer periphery of the auxiliary wheel (203), and the interior of the notch (204) is filled with the magnetic steel (201).
  6. 6. The self-power-generation system for in-pipe detection according to claim 1, characterized in that at least two groups of the self-power-generation assembly (03) are arranged outside the power generation cabin body (01).
  7. 7. The self-power-generation system for in-pipe detection according to claim 1, characterized in that the charge-discharge assembly (02) comprises a battery base (9) and a fixing plate (10); the battery base (9) is fixedly connected with the fixing plate (10) and an end cover (11) of the power generation cabin body (01) respectively; a battery (12) is arranged between the battery base (9) and the fixing plate (10); a switching circuit board (13) is arranged on the fixing plate (10), and the switching circuit board (13) is electrically connected with the battery (12) and the self-power-generation assembly (03) respectively.
  8. 8. The self-power-generation system for in-pipe detection according to claim 7, characterized in that a seal ring (14) is provided between the end cover (11) and the battery base (9).
  9. 9. The self-power-generation system for in-pipe detection according to any one of claims 1 to 8, characterized in that both end portions of the power generation cabin body (01) are provided with a support cup (15) and a support plate (16), the support cup (15) being located between the power generation cabin body (01) and the support plate (16).
  10. 10. The self-power-generation system for in-pipe detection according to any one of claims 1 to 8, characterized in that an end portion of the power generation cabin body (01) is provided with a universal joint (17) connected with a detector.
  11. 11. The self-power-generation system for in-pipe detection according to claim 9, characterized in that a distance between a contact point (202A) of the self-power-generation assembly and a central axis of the power generation cabin body (01) is smaller than a radius of the support cup (15), and the contact point is a point on an outer circumference of the self-power-generation assembly (03) farthest from the central axis of the power generation cabin body (01).
  12. 12. The self-power-generation system for in-pipe detection according to claim 11, characterized in that a radius of the support cup (15) is larger than a radius of the 20 pipeline.
GB2018455.2A 2020-01-19 2020-11-24 Self-power-generation system for in-pipeline detection Active GB2591573B (en)

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CN202010060127.8A CN111130201A (en) 2020-01-19 2020-01-19 Self-generating system for in-pipeline detection

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GB202018455D0 GB202018455D0 (en) 2021-01-06
GB2591573A true GB2591573A (en) 2021-08-04
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2334563C1 (en) * 2007-01-09 2008-09-27 Общество с ограниченной ответственностью ХОЗРАСЧЕТНЫЙ ТВОРЧЕСКИЙ ЦЕНТР УФИМСКОГО АВИАЦИОННОГО ИНСТИТУТА In-line transporting device and transportation method in main pipeline at regular given speed
CN201568684U (en) * 2009-12-04 2010-09-01 吉林市英诺智能机电技术开发有限责任公司 On-line energy-taking device of fluid pressure difference driving pipeline crawler
CN206425311U (en) * 2017-01-13 2017-08-22 重庆科技学院 Self-adapting pipe clears up robot
CN208555376U (en) * 2018-04-25 2019-03-01 天津惠博普管道技术有限公司 A kind of positioning and tracking device for pipe cleaner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2334563C1 (en) * 2007-01-09 2008-09-27 Общество с ограниченной ответственностью ХОЗРАСЧЕТНЫЙ ТВОРЧЕСКИЙ ЦЕНТР УФИМСКОГО АВИАЦИОННОГО ИНСТИТУТА In-line transporting device and transportation method in main pipeline at regular given speed
CN201568684U (en) * 2009-12-04 2010-09-01 吉林市英诺智能机电技术开发有限责任公司 On-line energy-taking device of fluid pressure difference driving pipeline crawler
CN206425311U (en) * 2017-01-13 2017-08-22 重庆科技学院 Self-adapting pipe clears up robot
CN208555376U (en) * 2018-04-25 2019-03-01 天津惠博普管道技术有限公司 A kind of positioning and tracking device for pipe cleaner

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GB202018455D0 (en) 2021-01-06
GB2591573B (en) 2022-03-02

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