CN111561627A - Gas pipeline leakage detection device and use method thereof - Google Patents
Gas pipeline leakage detection device and use method thereof Download PDFInfo
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- CN111561627A CN111561627A CN202010255593.1A CN202010255593A CN111561627A CN 111561627 A CN111561627 A CN 111561627A CN 202010255593 A CN202010255593 A CN 202010255593A CN 111561627 A CN111561627 A CN 111561627A
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- 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
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- 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
- F16L55/38—Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure
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- 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
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
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- 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
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a gas pipeline leakage detection device and a use method thereof, and particularly relates to the field of gas pipeline leakage detection. According to the invention, the leakage condition is detected by multiple groups of sensor probes according to pressure or flow, and the leakage condition is matched with the angle sensor and the GPS positioner for use, so that the leakage position of the gas pipeline can be quickly and accurately found, the work that a later-stage maintainer needs to accurately leak the position again is omitted, the quick rush repair can be realized, and the soil pollution is avoided.
Description
Technical Field
The embodiment of the invention relates to the field of gas pipeline leakage detection, in particular to a gas pipeline leakage detection device and a use method thereof.
Background
The content of gas in the soil of the land has great influence on the growth of vegetation, the urban greening area is mainly a street greening position at present, the research on the content of the gas in the soil and the soil is carried out on the death of greening vegetation according to the requirements of greening environmental protection units, the reason that part of vegetation is dead is discovered to be closely related to methane, and the methane is the main component of urban fuel gas. In the process of urban gas delivery, leaked gas is mixed in soil gas in modes of turbulence, mass flow and the like (methane can be completely removed only in a period of several months depending on soil respiration), so that vegetation at local positions die due to oxygen deficiency, and the problem of gas leakage prevention needs to be researched.
At present, the gas leakage detection of a buried pipeline system is limited to the situation that leaked gas is blown to the ground, and then the gas leakage detection is carried out through a conventional gas detector, but the concentration of the leaked gas is reduced after the leaked gas is diffused to the ground, whether the leaked gas exists or not is difficult to detect due to the influence of surface wind, and the position of a leakage point cannot be judged.
The invention patent with the patent publication number of CN103499023B discloses a method and a device for detecting and positioning leakage of a gas pipeline on line, wherein detection equipment is directly arranged on a production line of the gas pipeline, and the method utilizes an acoustic emission leakage detection technology to feed back information in real time through real-time detection and find the leakage and position, but the method not only needs a plurality of detection equipment (sensors) to detect the approximate position of the leakage, but also needs to install a large amount of detection equipment when the range of the leakage position is reduced, the cost is higher, the accurate positioning cannot be realized, in addition, the cost is higher, the later data processing workload is larger, and the method and the device are not suitable for the gas pipeline laid during specific construction.
Disclosure of Invention
Therefore, the embodiment of the invention provides a gas pipeline leakage detection device and a using method thereof, and aims to solve the problems of low detection precision and high cost in the prior art.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: a gas pipeline leakage detection device is movably arranged in a gas pipeline and comprises an annular shell, a plurality of detection assemblies and a plurality of driving mechanisms, wherein the detection assemblies are uniformly arranged on the inner side wall of the annular shell in a surrounding manner, the driving mechanisms are uniformly arranged on the outer side wall of the annular shell in a surrounding manner and are attached to the inner wall of the gas pipeline, the detection device is respectively driven to do linear reciprocating motion in the gas pipeline by gas conveying wind power and the driving mechanisms, and the detection assemblies perform all-dimensional detection on the gas pipeline in the reciprocating motion process;
the detection assembly comprises an inner wall caulking groove and a sensor probe, a GPS (global positioning system) positioner and a single chip microcomputer which are arranged in the inner wall caulking groove, wherein the sensor probe is used for detecting the gas flow in a pipeline, the GPS positioner is used for positioning the position of the detection device, the single chip microcomputer is used for connecting a gas leakage monitoring center through a wireless module, and the gas leakage position is detected out on the pipeline through the gas flow change value and the GPS positioning position.
Further, the outer side wall of the annular shell is matched with the inner wall of the gas pipeline, the inner side wall of the annular shell is an arc-shaped curved surface, the section of the curved surface is an arc-shaped curve, and two ends of the inner side wall of the annular shell are respectively tangent to the inner wall of the gas pipeline.
Further, the detection assembly further comprises an angle sensor, the angle sensor is fixedly installed inside the inner wall caulking groove, and the angle sensor is arranged on one side of the sensor probe.
Furthermore, the GPS positioner is arranged in one groove on one inner wall, and the sensor probe is specifically a gas flow sensor probe or a gas pressure sensor probe.
Further, actuating mechanism includes gyro wheel, sprocket group, servo motor, generating set and storage battery, the sprocket group is connected through the pivot respectively at the gyro wheel both ends, the sprocket group of gyro wheel one end is driven by servo motor, the sprocket group of the gyro wheel other end connects generating set, generating set is with the storage of electricity generation quantity in the storage battery, and every actuating mechanism's storage battery is used for supplying power for the detection module of servo motor and both sides.
Further, the mounting groove has been seted up on the annular shell outer wall that actuating mechanism corresponds, in actuating mechanism embedding mounting groove, and the gyro wheel runs through the mounting groove and extends to the mounting groove outside and the laminating of gas pipeline inner wall.
Further, the mounting groove internal fixation is equipped with the drive box, inner wall caulking groove and storage battery are all installed in the drive box, the fixed shield that is equipped with in drive box top, shield top both sides and pivot activity joint, shield top edge is the Z type and turns over a book and extend to the mounting groove outside and annular housing fixed connection, the gyro wheel activity sets up in the shield top.
Further, annular shell comprises three arc, and three arc encloses into a circular shape, installs a actuating mechanism and a plurality of determine module in every arc, T type spout has all been seted up to arc both ends terminal surface, is equipped with the arc slide bar between two adjacent arcs, the arc slide bar both ends all set up to the T type and cooperate with T type spout.
Further, arc slide bar both ends all are equipped with a plurality of through-holes, the mounting hole has been seted up to the arc tip that the through-hole corresponds, the through-hole corresponds with the mounting hole, the mounting hole outside is equipped with the screw, the screw runs through mounting hole and through-hole with arc slide bar and arc fixed connection.
The invention also provides a use method of the gas pipeline leakage detection device, which comprises the following steps:
s1, when the device is used, the whole detection device is placed at the air inlet end of the gas main pipe, the distance between the three arc-shaped plates is adjusted according to the inner diameter of the gas pipeline, the outer diameter of the annular shell formed by the three arc-shaped plates is matched with the inner diameter of the gas pipeline, the rollers are attached to the inner wall of the gas pipeline, and therefore the detection device is stably placed in the gas pipeline;
s2, when the gas pipeline is buried and used, gas is introduced into the gas inlet end, the whole detection device moves to the far end under the thrust of gas flow, in the moving process, the gas is output through a channel on the inner side of the annular shell, at the moment, a plurality of detection assemblies can detect the gas flow around the detection device, when a gap is leaked, the sensor probe can detect the change and send a signal to the single chip microcomputer, and meanwhile, the single chip microcomputer controls the angle sensor and the GPS positioner to work, and the detection parameters, the angle position and the detected leakage position of the sensor probe are sent to a gas leakage monitoring center;
s3, when the detection device is driven by gas flow, the roller wheel drives the rotating shaft to rotate, the generator converts the kinetic energy transmitted by the chain wheel set into electric energy to be stored in the storage battery to supply power to the sensor probe and the servo motor, when the detection device moves to the linear air outlet end of the gas main pipe, the servo motor operates to drive the roller wheel to rotate reversely, the detection device moves back, and pipeline detection is carried out in the motion process, therefore, the detection device can carry out continuous reciprocating detection as long as the gas is ventilated.
The embodiment of the invention has the following advantages:
1. according to the invention, the detection device is arranged in an annular shape and is placed in the gas dry pipeline for use, the detection device is matched with the roller for use, the thrust of gas flow is utilized to move towards a far end for detection during detection, when a gap is leaked, gas passing through the inner side of the annular shell can be shunted, the flow speed and the pressure in the pipeline can change, the sensor probe can detect the change of pressure or flow and send a detection signal to the single chip microcomputer, and the detection device is matched with the angle sensor and the GPS positioner for use, so that the leakage position and the accurate leakage angle on the circumferential position of the pipeline can be detected, the leakage position of the gas pipeline can be quickly and accurately found through the detected leakage information, the leakage position and the leakage angle, the work that a later-period maintainer needs to accurately leak the position again is omitted, the quick rush repair can be realized;
2. according to the invention, the leakage condition can be detected according to pressure or flow by arranging a plurality of groups of sensor probes, the leakage of any circumferential position in the gas dry pipeline can be detected by one GPS (global positioning system) positioner, the leakage of different angles of each circumferential position on the pipeline can be accurately detected by the angle sensor, and the gas flow is utilized and matched with the generator set, so that the energy conservation and environmental protection are really realized, the installation is easy, and the problem of power supply is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic view of a gas pipeline structure provided by the present invention;
FIG. 2 is a schematic view of the ring housing structure provided by the present invention;
FIG. 3 is an overall cross-sectional view provided by the present invention;
FIG. 4 is a schematic view of the structure of part A of FIG. 3 according to the present invention;
FIG. 5 is a schematic view of a portion of the structure of FIG. 3 according to the present invention;
FIG. 6 is a schematic structural diagram of a detecting assembly according to the present invention;
FIG. 7 is a block diagram of a system provided by the present invention;
FIG. 8 is a schematic view of a fitting structure of the arc-shaped sliding rod and the T-shaped sliding groove according to the present invention;
FIG. 9 is a schematic view of a portion of the structure of FIG. 8 according to the present invention;
in the figure: the device comprises an annular shell 1, a detection assembly 2, a 21 inner wall caulking groove, a 22 sensor probe, a 23GPS positioner, a 24 single chip microcomputer, a 25-degree angle sensor, a 3-degree driving mechanism, a 31 roller, a 32 chain wheel set, a 33 servo motor, a 34 generator set, a 35 storage battery, a 4 gas pipeline, a 5 mounting groove, a 6 driving box, a 7 dust cover, an 8 arc-shaped plate, a 9T-shaped sliding groove, a 10 arc-shaped sliding rod, 11 through holes and 12 mounting holes.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to the attached drawings 1-7 of the specification, the gas pipeline leakage detection device and the use method thereof in the embodiment are characterized in that the detection device is movably arranged in a gas pipeline 4 and comprises an annular shell 1, a plurality of detection assemblies 2 and a plurality of driving mechanisms 3, the detection assemblies 2 are uniformly arranged on the inner side wall of the annular shell 1 in a surrounding manner, the driving mechanisms 3 are uniformly arranged on the outer side wall of the annular shell 1 in a surrounding manner and attached to the inner wall of the gas pipeline 4, the detection device is respectively driven by gas conveying wind power and the driving mechanisms 3 to do linear reciprocating motion in the gas pipeline 4, and the detection assemblies 2 perform omnibearing detection on the gas pipeline 4 in the reciprocating motion process;
Further, the GPS locator 23 is disposed as one and installed inside one of the inner wall caulking grooves 21, and the sensor probe 22 is specifically an MFC2000 gas flow sensor probe 22 or a PY209 gas pressure sensor probe 22.
Further, the detecting component 2 further comprises an angle sensor 25, the angle sensor 25 is fixedly installed inside the inner wall caulking groove 21, the angle sensor 25 is arranged on one side of the sensor probe 22, the model of the angle sensor 25 is set to be wdj22a angular displacement sensor, the model of the single chip microcomputer 24 is set to be M68HC16, the sensor probe 22 and the angle sensor 25 are connected with the single chip microcomputer 24 through an A/D converter, and analog-to-digital conversion of detected information is carried out.
Further, actuating mechanism 3 includes gyro wheel 31, sprocket group 32, servo motor 33, generating set 34 and storage battery 35, the sprocket group 32 is connected through the pivot respectively at the gyro wheel 31 both ends, the sprocket group 32 of gyro wheel 31 one end is driven by servo motor 33, generating set 34 is connected to the sprocket group 32 of the gyro wheel 31 other end, generating set 34 is used for the power supply for the detection component 2 of servo motor 33 and both sides with the storage of generated electricity quantity in storage battery 35, every actuating mechanism 3's storage battery 35.
Further, mounting groove 5 has been seted up on the 1 outer wall of annular shell that actuating mechanism 3 corresponds, in actuating mechanism 3 embedding mounting groove 5, and gyro wheel 31 runs through mounting groove 5 and extends to the 5 outside of mounting groove and the laminating of 4 inner walls of gas pipeline.
Further, 5 internal fixation of mounting groove is equipped with drive box 6, inner wall caulking groove 21 and storage battery 35 are all installed in drive box 6, the fixed shield 7 that is equipped with in 6 tops of drive box, 7 top both sides of shield and pivot activity joint, 7 top edges of shield are the Z type and turn over a book and extend to 5 outsides of mounting groove and 1 fixed connection of annular housing, gyro wheel 31 activity sets up in 7 tops of shield.
The implementation scenario is specifically as follows: the use method of the gas pipeline 4 leakage detection device of the embodiment is as follows:
s1, installation: before the gas pipeline 4 is buried, the whole detection device is placed at the gas inlet end of the gas main pipe, before the gas main pipe is placed, the detection device matched with the inner diameter of the gas pipeline 4 in size is prepared and selected according to the inner diameter of the gas pipeline 4, the annular shell 1 can be attached to the inner wall of the gas pipeline 4 through the outer wall surface during installation, the roller 31 is attached to the inner wall of the gas pipeline 4, and at the moment, the whole detection device stands vertically and stably and cannot topple over;
s2, detection: when the gas pipeline 4 is buried well and used, gas is introduced into the gas inlet end, the whole detection device moves to the far end under the thrust of gas flow at the moment, in the moving process, the gas is output through a channel on the inner side of the annular shell 1, the gas flow on the periphery of the gas pipeline can be detected by the detection assemblies 2 at the moment, when a gap is leaked, the gas flowing through the inner side of the annular shell 1 can be shunted, the flow speed and the pressure in the pipeline can change, the sensor probe 22 can detect the change of pressure or flow at the moment and send a detection signal to the single chip microcomputer 24, meanwhile, the single chip microcomputer 24 controls the angle sensor 25 and the GPS positioner 23 to work, the angle of the sensor probe 22 which detects the change is sent to the single chip microcomputer 24 by the angle sensor 25, the GPS positioner 23 sends the position information of the sensor probe 22 to the single chip microcomputer 24, and the single chip, Sending all information to a gas leakage monitoring center by a leakage position and an accurate leakage angle on the circumferential position of the pipeline, and dispatching a maintainer to carry out high-precision maintenance work by the gas leakage monitoring center;
s3, when the detection device is driven by gas flow, the roller 31 drives the rotating shaft to rotate, the generator converts the kinetic energy transmitted by the chain wheel set 32 into electric energy to be stored in the storage battery to supply power to the sensor probe 22, when the detection device moves to the linear gas outlet end of the gas main pipe, the storage battery supplies power to the servo motor 33, the servo motor 33 drives the rotating shaft to rotate reversely, the chain wheel set 32 drives the roller 31 to rotate reversely, the detection device moves back and performs pipeline detection in the movement process, therefore, the detection device can detect and generate power only when the gas is ventilated, the reverse movement can supply power to the servo motor 33 by using the generated electric energy, the whole detection device can operate without using external energy in the use process, energy conservation and environmental protection are achieved, the problem that the power is difficult to supply in the gas pipeline 4 is solved, and the detection device can be directly placed in the gas pipeline, the use is very convenient.
Referring to the attached drawings 1-2 of the specification, the outer side wall of the annular shell 1 is matched with the inner wall of the gas pipeline 4, the inner side wall of the annular shell 1 is an arc-shaped curved surface, the section of the curved surface is an arc-shaped curve, and two ends of the inner side wall of the annular shell 1 are respectively arranged in a tangent mode with the inner wall of the gas pipeline 4.
The implementation scenario is specifically as follows: according to the invention, the inner side wall of the annular shell 1 is set to be an arc-shaped curved surface, and two ends of the inner side wall are tangent to the inner wall of the gas pipeline 4, so that the gas conveying resistance can be reduced, and the gas can be conveyed smoothly.
Example 2
Referring to the attached figures 8-9 of the specification, the annular shell 1 is composed of three arc-shaped plates 8, the three arc-shaped plates 8 are enclosed to form a circle, a driving mechanism 3 and a plurality of detection assemblies 2 are installed in each arc-shaped plate 8, T-shaped sliding grooves 9 are formed in the end faces of the two ends of each arc-shaped plate 8, arc-shaped sliding rods 10 are arranged between every two adjacent arc-shaped plates 8, and the two ends of each arc-shaped sliding rod 10 are T-shaped and matched with the T-shaped sliding grooves 9.
Further, both ends of the arc-shaped sliding rod 10 are provided with a plurality of through holes 11, the end portion of the arc-shaped plate 8 corresponding to the through holes 11 is provided with a mounting hole 12, the through holes 11 correspond to the mounting holes 12, a screw is arranged outside the mounting hole 12, and the screw penetrates through the mounting hole 12 and the through holes 11 to fixedly connect the arc-shaped sliding rod 10 and the arc-shaped plate 8.
The implementation scenario is specifically as follows: the use method of the gas pipeline 4 leakage detection device of the embodiment is as follows:
in this embodiment, unlike the method of using the gas pipe 4 leak detection device of embodiment 1, the method of using the device includes: before the gas pipeline 4 is buried, the whole detection device is placed at the gas inlet end of the gas main pipe, before the gas main pipe is placed, the screw is removed, the distance between the three arc plates 8 is adjusted according to the inner diameter of the gas pipeline 4, so that the annular shell 1 formed by the three arc plates 8 is matched with the inner diameter of the gas pipeline 4, then the arc-shaped slide rod 10 is fixed with the arc-shaped plate 8 by a bolt penetrating through the through hole 11 and the mounting hole 12, can realize the fixed because gas pipeline 4 sizes between three arc 8 are just several kinds, consequently can set for interval between a plurality of through-holes 11 and a plurality of mounting holes 12 according to current gas pipeline 4's size, annular shell 1 can laminate mutually through outer wall surface and gas pipeline 4 inner wall during the installation, and gyro wheel 31 laminates mutually with gas pipeline 4 inner wall, and whole detection device is vertical stable of standing this moment, can not take place to empty, carries out reciprocal detection work again after that.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a gas pipeline leakage detection device which characterized in that: the detection device is movably arranged in a gas pipeline (4), and comprises an annular shell (1), a plurality of detection assemblies (2) and a plurality of driving mechanisms (3), wherein the detection assemblies (2) are uniformly arranged on the inner side wall of the annular shell (1) in a surrounding manner, the driving mechanisms (3) are uniformly arranged on the outer side wall of the annular shell (1) in a surrounding manner and are attached to the inner wall of the gas pipeline (4), the detection device is respectively driven to do linear reciprocating motion in the gas pipeline (4) through gas conveying wind power and the driving mechanisms (3), and the detection assemblies (2) carry out omnibearing detection on the gas pipeline (4) in the reciprocating motion process;
detection element (2) include inner wall caulking groove (21) and install sensor probe (22), GPS locator (23) and singlechip (24) in inner wall caulking groove (21), sensor probe (22) are used for detecting the interior gas flow of pipeline, GPS locator (23) are used for positioning detection device's position, singlechip (24) are used wireless module to connect the gas and are revealed the surveillance center, detect out concrete gas leakage position on the pipeline through gas flow variation value and GPS position location.
2. The gas pipeline leakage detection device of claim 1, wherein: the outer side wall of the annular shell (1) is matched with the inner wall of the gas pipeline (4), the inner side wall of the annular shell (1) is an arc-shaped curved surface, the section of the curved surface is an arc-shaped curve, and two ends of the inner side wall of the annular shell (1) are respectively tangent to the inner wall of the gas pipeline (4).
3. The gas pipeline leakage detection device of claim 1, wherein: the detection assembly (2) further comprises an angle sensor (25), the angle sensor (25) is fixedly installed inside the inner wall caulking groove (21), and the angle sensor (25) is arranged on one side of the sensor probe (22).
4. The gas pipeline leakage detection device of claim 1, wherein: the GPS positioner (23) is arranged in one groove (21) on one inner wall, and the sensor probe (22) is specifically a gas flow sensor probe (22) or a gas pressure sensor probe (22).
5. The gas pipeline leakage detection device of claim 1, wherein: actuating mechanism (3) are including gyro wheel (31), sprocket group (32), servo motor (33), generating set (34) and storage battery (35), sprocket group (32) are connected through the pivot respectively at gyro wheel (31) both ends, sprocket group (32) of gyro wheel (31) one end are driven by servo motor (33), generating set (34) are connected in sprocket group (32) of gyro wheel (31) the other end, generating set (34) are used for the detection subassembly (2) power supply for servo motor (33) and both sides with the storage of generated electricity quantity in storage battery (35), storage battery (35) of every actuating mechanism (3).
6. The gas pipeline leakage detection device of claim 5, wherein: mounting groove (5) have been seted up on annular shell (1) outer wall that actuating mechanism (3) correspond, actuating mechanism (3) embedding mounting groove (5) are interior, and gyro wheel (31) run through mounting groove (5) and extend to mounting groove (5) outside and gas pipeline (4) inner wall laminating.
7. The gas pipeline leakage detection device of claim 6, wherein: mounting groove (5) internal fixation is equipped with drive box (6), inner wall caulking groove (21) and storage battery (35) are all installed in drive box (6), drive box (6) top is fixed and is equipped with shield (7), shield (7) top both sides and pivot activity joint, shield (7) top edge is the Z type and turns over a book and extend to mounting groove (5) outside and annular housing (1) fixed connection, gyro wheel (31) activity sets up in shield (7) top.
8. The gas pipeline leakage detection device of claim 7, wherein: annular shell (1) comprises three arc (8), and three arc (8) enclose into a circular shape, installs a actuating mechanism (3) and a plurality of determine module (2) in every arc (8), T type spout (9) have all been seted up to arc (8) both ends terminal surface, are equipped with arc slide bar (10) between two adjacent arcs (8), arc slide bar (10) both ends all set up to the T type and cooperate with T type spout (9).
9. The gas pipeline leakage detection device and the use method thereof according to claim 8, characterized in that: arc slide bar (10) both ends all are equipped with a plurality of through-holes (11), mounting hole (12) have been seted up to arc (8) tip that through-hole (11) correspond, through-hole (11) are corresponding with mounting hole (12), mounting hole (12) outside is equipped with the screw, the screw runs through mounting hole (12) and through-hole (11) with arc slide bar (10) and arc (8) fixed connection.
10. The use method of the gas pipeline leakage detection device according to any one of claims 1 to 9, characterized by comprising the following steps:
s1, when the gas pipeline detection device is used, the whole detection device is placed at the gas inlet end of a gas main pipe, the distance between three arc-shaped plates (8) is adjusted according to the inner diameter of a gas pipeline (4), the outer diameter of an annular shell (1) formed by the three arc-shaped plates is matched with the inner diameter of the gas pipeline (4), and a roller (31) is attached to the inner wall of the gas pipeline (4), so that the detection device is stably placed in the gas pipeline (4);
s2, when the gas pipeline (4) is buried well and used, gas is introduced into a gas inlet end, the whole detection device moves to a far end under the thrust of gas flow, in the moving process, the gas is output through a channel on the inner side of the annular shell (1), at the moment, a plurality of detection assemblies (2) can detect the peripheral gas flow, when a gap is leaked, the sensor probe (22) can detect the change and send a signal to the single chip microcomputer (24), meanwhile, the single chip microcomputer (24) controls the angle sensor (25) and the GPS positioner (23) to work, and the detection parameters, the angle position and the detected leakage position of the sensor probe (22) are sent to a gas leakage monitoring center;
s3, when the detection device is driven by gas flow, the roller (31) drives the rotating shaft to rotate, the generator converts the kinetic energy transmitted by the chain wheel set (32) into electric energy to be stored in the storage battery to supply power to the sensor probe (22) and the servo motor (33), when the detection device moves to the linear air outlet end of the gas main pipe, the servo motor (33) operates to drive the roller (31) to rotate reversely, the detection device moves back, and pipeline detection is carried out in the motion process, therefore, the detection device can carry out continuous reciprocating detection as long as the gas is ventilated.
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Application publication date: 20200821 |