CN111120881B - Pipeline leakage on-line detection device - Google Patents
Pipeline leakage on-line detection device Download PDFInfo
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- CN111120881B CN111120881B CN202010060858.2A CN202010060858A CN111120881B CN 111120881 B CN111120881 B CN 111120881B CN 202010060858 A CN202010060858 A CN 202010060858A CN 111120881 B CN111120881 B CN 111120881B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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Abstract
The invention relates to a pipeline leakage on-line detection device, comprising: the device comprises a detection module, a control processing module, a shell, a movement mechanism and a fixing mechanism; the detection module is electrically connected with the control processing module; the moving mechanism comprises a moving cylinder, a plurality of running wheels and a driving motor, the cross section of the moving cylinder is circular, the moving cylinder is sleeved outside the pipeline, the moving cylinder is sequentially provided with a plurality of moving grooves along the circumferential direction, each moving groove is internally provided with a running wheel in a rotating manner, the driving motor is connected with the running wheels in a driving manner, and the shell is fixedly connected with the moving cylinder; the fixing assembly is used for being connected with the outer side surface of the pipeline. Fixing mechanism is used for fixing the casing in the outside of pipeline to make detection module can carry out indirect detection to the pipeline, when detecting that the pipeline takes place to leak, control fixing mechanism breaks away from the pipeline surface, and control processing module passes through control driving motor work, in order to drive this running wheel motion, drives the casing along the pipeline motion, detects the different positions of pipeline, with the position that the location leakage takes place.
Description
Technical Field
The invention relates to the technical field of pipeline leakage detection, in particular to an online pipeline leakage detection device.
Background
The pipeline leakage monitoring is to monitor the liquid conveying pipeline in real time, once the pipeline is perforated and leaked, the leakage can be detected in time and fed back, and the detected items can include the leakage position, the leakage time and the like.
The leak detection method mainly comprises two types: direct leak detection methods and indirect methods. The direct method is to directly measure the leakage medium by using a detection element (such as a leakage detection cable or an oil sensitive element) preset outside the pipeline. This method allows for detection and location of minor leaks, but requires installation at the same time as the pipeline is being constructed. An indirect method is to infer the occurrence of a leak by detecting changes in operating parameters of the pipeline, such as detecting pressure, flow, etc. This method is not as sensitive as the direct method and is suitable for detecting larger leaks.
In the traditional indirect detection method, the occurrence of leakage is inferred by detecting the change of the operation parameters of the pipeline, so that the sensitivity is not high, and the specific position of the leakage cannot be accurately positioned.
Disclosure of Invention
Based on this, it is necessary to provide an online pipeline leakage detection device.
An online pipeline leakage detection device comprises: the device comprises a detection module, a communication module, a control processing module, a shell, a movement mechanism and a fixing mechanism;
an installation cavity is formed in the shell, the detection module, the communication module and the control processing module are arranged in the installation cavity, and the detection module is electrically connected with the communication module and the control processing module respectively;
the moving mechanism comprises a moving cylinder, a plurality of traveling wheels and a driving motor, the cross section of the moving cylinder is circular, the moving cylinder is sleeved outside the pipeline, the moving cylinder is sequentially provided with a plurality of moving grooves along the circumferential direction, each moving groove is internally provided with one traveling wheel in a rotating mode, the driving motor is in driving connection with the traveling wheels, and the shell is fixedly connected with the moving cylinder;
the fixing mechanism is connected with the shell, and the fixing component is used for being connected with the outer side surface of the pipeline.
In one embodiment, the securing mechanism is telescopically coupled to the housing and the securing mechanism is disposed inside the moving cartridge.
In one embodiment, the fixing mechanism comprises an adsorption component for adsorption fixing on the outer side surface of the pipeline.
In one embodiment, the adsorption assembly includes a magnet for adsorption-fixing to an outer side surface of the iron pipe.
In one embodiment, the movable cylinder includes a first sub-cylinder and a second sub-cylinder, the first sub-cylinder and the second sub-cylinder are respectively rotatably connected to both sides of the housing, the first sub-cylinder and the second sub-cylinder rotate relative to the housing, and the first sub-cylinder and the second sub-cylinder open in opposite directions to open the movable cylinder.
In one embodiment, a side of the first sub-cartridge away from the housing and a side of the second sub-cartridge away from the housing are snap-fit connected.
In one embodiment, the number of the driving motors is multiple, and each driving motor is connected with one driving wheel.
In one embodiment, the detection module comprises an ultrasonic detection module.
In one embodiment, the flange detection module further comprises an optical fiber imaging sub-module and a transmission sub-module, wherein the optical fiber imaging sub-module is arranged at the joint of the flanges of the two pipelines, and the optical fiber imaging sub-module is electrically connected with the transmission sub-module.
The invention has the beneficial effects that: fixing mechanism is used for fixing the casing in the outside of pipeline, so that detection module can carry out indirect detection to the pipeline, when control processing module detects the pipeline through detection module and takes place to leak, control fixing mechanism breaks away from the pipeline surface, so that detection device can be at pipeline surface motion, control processing module is through the work of control driving motor, in order to drive this wheel motion of traveling, thereby drive the casing along the pipeline motion, thereby detect the different positions of pipeline, leak the position that takes place with the accurate positioning.
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, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic cross-sectional view of a pipeline leakage on-line detection device according to an embodiment;
FIG. 2 is a block diagram of an embodiment of an online pipeline leakage detection device;
FIG. 3 is a schematic structural diagram illustrating an open state of a movable cylinder of the online pipeline leakage detection device according to an embodiment;
FIG. 4 is a schematic cross-sectional view of another embodiment of an online pipeline leakage detection device;
fig. 5 is a schematic structural diagram of a pipeline leakage online detection device according to another embodiment in one direction.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, 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.
As shown in fig. 1 and 2, an online pipeline leakage detection device 10 according to a preferred embodiment of the present invention includes: a detection module 210, a communication module 220, a control processing module 230, a housing 100, a movement mechanism 300, and a fixing mechanism 400; an installation cavity 101 is formed in the housing 100, the detection module 210, the communication module 220 and the control processing module 230 are arranged in the installation cavity, and the detection module 210 is electrically connected with the communication module 220 and the control processing module 230 respectively; the movement mechanism 300 comprises a movement cylinder 310, a plurality of running wheels 320 and a driving motor 250, the cross section of the movement cylinder 310 is circular, the movement cylinder 310 is used for being sleeved outside a pipeline, the movement cylinder 310 is sequentially provided with a plurality of movement grooves 301 along the circumferential direction, each movement groove 301 is internally provided with one running wheel 320 in a rotating manner, the driving motor 250 is in driving connection with the running wheels 320, and the shell 100 is fixedly connected with the movement cylinder 310; the fixing means 400 is coupled to the housing 100, and the fixing means 400 is adapted to be coupled to an outer side surface of a pipe.
Specifically, the casing 100 is used for installing the detection module 210, the communication module 220, the control processing module 230 and the battery module 240, and the battery module 240 is electrically connected with the detection module 210, the communication module 220 and the control processing module 230 to supply power to the detection module 210, the communication module 220 and the control processing module 230. In addition, the battery module 240 is electrically connected to the driving motor 250 for supplying power to the driving motor 250. The control processing module 230 is also electrically connected to the driving motor 250, and the control processing module 230 is used for controlling the operation of the driving motor 250.
When the pipeline driving device is used, the moving cylinder 310 is sleeved outside the pipeline 800, the moving cylinder 310 is in a hollow cylindrical shape in the middle, the axial direction of the moving cylinder 310 is parallel to the axial direction of the pipeline 800, the central axis of the moving cylinder 310 is overlapped with the central axis of the pipeline, the moving cylinder 310 supports the driving wheel 320 to be tightly attached to the outer side surface of the pipeline 800, and the axial direction of the moving wheel is perpendicular to the axial direction of the pipeline, so that the driving wheel 320 can move along the outer side surface of the pipeline and move along the axial direction of the pipeline.
The detection module 210 is used to detect an operating parameter of the pipeline to detect whether there is a leak in the pipeline. In one embodiment, the detection module is configured to detect operational data of the pipeline and send the operational data to the communication module 220 and the control processing module 230. The communication module 220 is used to transmit the operation data to a remote terminal or a remote server. The control processing module 230 is used for acquiring the operation data of the detection module 210, and when there is a leakage, controlling the driving motor 250 to work, so that the pipeline leakage online detection device 10 moves along the pipeline, and detects different positions of the pipeline. Specifically, the control processing module 230 is configured to obtain operation data of the detection module 210, control the driving motor 250 to operate when the detection data reflects that there is a leakage in the pipeline, so that the pipeline leakage on-line detection apparatus 10 steps by a preset distance, control the detection module 210 to detect again to obtain operation data of the pipeline after stepping by the preset distance, control the detection module 210 to detect again operation data of the pipeline, and send the operation data to a remote terminal or a remote server through the communication module 220. In this way, when there is leakage in the pipeline, the control processing module 230 controls the driving motor 250 to work for a preset number of times, data for each step is a preset distance, and each step is in turn detected by the detection module 210 to obtain running data, and the running data is sequentially transmitted back to the remote server.
In order to detect whether a pipeline leaks or not, in an embodiment, the control processing module 230 is configured to obtain operation data of the detection module 210, control the driving motor 250 to operate when a variation amplitude of the operation data is greater than a preset amplitude threshold value within a preset time, so that the online pipeline leakage detection device 10 moves along the pipeline, control the detection module 210 to detect the operation data of the pipeline again after the driving motor 250 operates for a preset time period, control the detection module 210 to detect the operation data of the pipeline again after each time the driving motor 250 operates for the preset time period, and send the operation data to a remote terminal or a remote server through the communication module 220 after each time the detection module 210 detects the operation data, where the N times are preset times. In this embodiment, when the variation amplitude of the operation data is greater than the preset amplitude threshold, it indicates that there is a possible leakage in the pipeline, and fluctuation of the operation data is caused by the leakage, so the control processing module 230 controls the driving motor 250 and the detection module 210 to repeat the operation N times, so that the online pipeline leakage detection apparatus 10 can perform leakage detection on different positions of the pipeline when the pipeline leaks.
It is worth mentioning that the indirect method detection is by ultrasonic detection, and in one embodiment, the detection module 210 includes an ultrasonic detection module 210. In one embodiment, the detection module 210 further comprises an ultrasonic detection module 210.
When the pipeline has the leakage, can cause the influence to the flow of liquid in the pipeline to make the operational data that detects change, and in addition, the outer hourglass of liquid can cause the noise, propagates through the pipeline, can be detected by detection module 210 equally, perhaps is close to leaking the source or keeps away from leaking the source, and the operational data that detects also will take place corresponding change, consequently, through the many times of different positions detect, can effective auxiliary calculation, judge the position of leaking the source. For example, with the increase of noise, the leakage source is gradually approached, and through the process, the position of the leakage source can be calculated, so that the position of the leakage source can be rapidly judged by a maintainer.
In order to further improve the accuracy of determining the position of the leakage source, in an embodiment, the control processing module 230 is configured to control the driving motor to move in the forward direction for a preset number of times, control the driving motor to move in the reverse direction to return to the initial position of the pipeline, control the driving motor to move in the reverse direction for a preset number of times, control the detection module 210 to detect again to obtain the operation data of the pipeline after each time the driving motor is controlled to move in the reverse direction for a preset duration, and send the operation data to the remote terminal or the remote server through the communication module 220 after each time the detection module 210 detects the operation data. In this embodiment, the initial position is the position on the pipeline where the pipeline leakage on-line detection device 10 is located when the pipeline leakage is initially detected to have leakage, so that the pipeline leakage on-line detection device 10 can perform multiple detections in two opposite directions on the initial position, the coverage area is increased, the direction of the leakage source is accurately determined, and the position of the leakage source is calculated more accurately.
In order to enable the battery module to continuously supply power, in one embodiment, as shown in fig. 2, the online pipe leakage detecting device 10 further includes a solar module 260, and the solar module 260 is electrically connected to the battery module 240, so that solar energy is converted into power through the solar module to supply power to the battery module, and the battery module can continuously supply power to the detecting module 210, the communication module 220 and the control processing module 230.
To absorb solar energy, in one embodiment, as shown in fig. 4, the solar module includes a solar panel 510, the solar panel 510 being disposed on an outside surface of the moving drum 310. In this embodiment, the solar panel 510 is attached to the outer surface of the moving barrel 310, so that the solar panel 510 can be wrapped in the solar energy and effectively prevented from being blocked, and in addition, the areas of the solar panel 510 and the moving barrel 310 are equal, which is equivalent to multiplexing the structure of the moving barrel 310 into the solar panel 510, so that the overall structure of the pipeline leakage online detection device 10 is simpler, the volume of the pipeline leakage online detection device 10 is smaller, and the occupation of too much space is avoided.
To enable communication with a remote server, in one embodiment, the communication module 220 is a mobile communication module 220, and in one embodiment, the mobile communication module 220 includes at least one of 2G, 4G, and 5G modules. Thus, the operation data detected by the detection module 210 can be transmitted to a remote server or a remote terminal through the communication module 220.
In order to prevent the pipe leakage from being blocked by the fixing mechanism 400 when the on-line detecting device 10 moves, in one embodiment, the fixing mechanism 400 is telescopically connected to the housing 100, and the fixing mechanism 400 is disposed inside the moving cylinder 310. In this embodiment, the fixing mechanism 400 is telescopically arranged, so that when the driving wheel 320 on the moving cylinder 310 moves, the fixing mechanism 400 is contracted to prevent the fixing mechanism 400 from contacting with the surface of the pipeline, and further, the pipeline leakage on-line detection device 10 is not blocked by the fixing mechanism 400 during the movement, so that the movement is more flexible. And after the running wheel 320 stops moving, when the pipeline leakage on-line detection device 10 needs to be fixed on the pipeline, the fixing mechanism 400 extends out and is connected with the surface of the pipeline, so that the pipeline leakage on-line detection device 10 is fixed on the pipeline, the position of the pipeline leakage on-line detection device 10 on the pipeline is fixed, the running wheel is prevented from displacing on the surface of the pipeline, and the pipeline is continuously monitored.
In order to realize the extension and retraction of the fixing mechanism 400, in an embodiment, as shown in fig. 1, the fixing mechanism 400 includes an extension component 410 and an adsorption component 420, the extension component 410 includes an electric cylinder 411 and a support rod 413, the support rod 413 is connected to the outer side of the casing 100, a telescopic cavity 414 is axially formed in the support rod 413, a telescopic hole is formed in the casing 100, the telescopic cavity 414 is communicated with the installation cavity through the telescopic hole, the electric cylinder 411 is disposed in the installation cavity, the electric cylinder 411 is connected to the electric cylinder 411 in a driving manner, the telescopic rod 412 is movably disposed in the support rod 413, one end of the telescopic rod 412, which is far away from the electric cylinder 411, is connected to the adsorption component 420, and the adsorption. Like this, electronic jar 411 passes through the flexible chamber 414 motion of drive telescopic link 412 in bracing piece 413, realizes adsorbing the flexible of subassembly 420, and when telescopic link 412 when the direction motion of keeping away from electronic jar 411, adsorbing subassembly 420 stretches out, adsorbs on the surface of pipeline, when telescopic link 412 moves to the direction that is close to electronic jar 411, adsorbs subassembly 420 and leaves the pipeline for driving wheel 320 on the motion section of thick bamboo 310 can be along the motion of pipeline surface.
In order to connect with the surface of the pipeline and thus fix the pipeline leakage on-line detection device 10, in one embodiment, the fixing mechanism 400 includes an adsorption assembly 420, and the adsorption assembly 420 is used for being adsorbed and fixed on the outer surface of the pipeline. In one embodiment, the adsorption assembly 420 includes a magnet for adsorption-fixing to an outer surface of the iron pipe.
In order to enable the fixing mechanism 400 to be automatically adsorbed on the surface of the pipeline when the driving wheel stops moving, in one embodiment, the telescopic assembly further comprises an elastic piece (not shown), the telescopic rod is connected with the shell through the spring, so that after the driving motor stops working, the control processing module controls the electric cylinder to stop working, the telescopic rod pops out under the elastic action of the elastic piece, the adsorption assembly is abutted to the outer side surface of the pipeline and adsorbed on the outer side surface of the pipeline, and when the driving wheel needs to move, the control processing module controls the electric cylinder to overcome the elastic action of the elastic piece and drive the telescopic rod to shrink, so that the adsorption assembly is separated from the surface of the pipeline, and the driving wheel can move. In one embodiment, the resilient member is a spring. It is worth mentioning that, through setting up the spring, can provide elastic buffer for flexible subassembly, in addition, when pipeline leakage on-line measuring device 10 stop motion, the spring can provide elasticity in the pipeline surface for the absorption subassembly butt, and this elasticity also provides the power of keeping away from the pipeline surface for the casing, and because the surface at the pipeline is established to the motion cover, and then make the wheel of traveling that is located the opposite side sticiss at the pipeline surface under the elastic action, and then produce bigger static friction, and then make pipeline leakage on-line measuring device 10 more for standing firmly on the pipeline.
In this embodiment, the online pipeline leakage detection device 10 is suitable for detecting an iron pipeline, the adsorption component 420 is made of a magnet, and the magnet can be stably adsorbed on the surface of the pipeline, so as to limit the movement of the online pipeline leakage detection device 10, and after the running wheel 320 stops moving, the position of the online pipeline leakage detection device 10 on the pipeline can be stably fixed by the magnet.
In order to enable the online pipeline leakage detection device 10 to be stably fixed on a pipeline and move along the pipeline, in one embodiment, the cross section of the moving cylinder 310 is circular, and the moving cylinder 310 is configured to be a cylinder with a hollow center, so that the shape of the moving cylinder 310 is matched with that of the pipeline, and the moving cylinder 310 can be wrapped on the outer side of the pipeline, and the traveling wheels 320 of the moving cylinder 310 can be respectively abutted against the pipeline in multiple directions on the outer side surface of the pipeline, so that the moving cylinder 310 can be clamped and fixed on the pipeline, and the online pipeline leakage detection device 10 can be stably fixed on the pipeline and move along the pipeline.
In order to enable the movable cylinder 310 to be installed and fixed on a pipeline, in one embodiment, as shown in fig. 1 and 3, the movable cylinder 310 includes a first sub-cylinder 311 and a second sub-cylinder 312, the first sub-cylinder 311 and the second sub-cylinder 312 are respectively rotatably connected to both sides of the housing 100, the first sub-cylinder 311 and the second sub-cylinder 312 rotate relative to the housing 100, and the first sub-cylinder 311 and the second sub-cylinder 312 are opened in opposite directions to open the movable cylinder.
In the present embodiment, the first side of the first sub-cylinder 311 is rotatably connected to one side of the housing 100, the first side of the second sub-cylinder 312 is rotatably connected to the other side of the housing 100, the second side of the first sub-cylinder 311 is connected to the second side of the second sub-cylinder 312, the sectional shape of the first sub-cylinder 311 is semicircular, and the sectional shape of the second sub-cylinder 312 is semicircular, such that, as shown in fig. 3, when the second side of the first sub-cylinder 311 and the second side of the second sub-cylinder 312 are separated, the moving cylinder 310 is in an open state, such that the moving cylinder 310 can be installed outside the pipe, the first sub-cylinder 311 and the second sub-cylinder 312 are placed outside the pipe, and the first sub-cylinder 311 and the second sub-cylinder 312 are rotated, such that the first sub-cylinder 311 and the second sub-cylinder 312 are connected, such that the moving cylinder 310 is closed, such that the moving cylinder 310 can be fitted over the outer side surface of the pipe, and such that the running wheels 320 on the moving cylinder 310 abut against the outer, and supports the moving cylinder 310. Subsequently, as shown in fig. 1, the second side of the first sub-cylinder 311 and the second side of the second sub-cylinder 312 are fixedly connected such that the moving cylinder 310 is firmly fixed to the outside of the duct 800. It is worth mentioning that the first and second sides of the first sub-cartridge 311 refer to opposite sides on the first sub-cartridge 311, and the first and second sides of the second sub-cartridge 312 refer to opposite sides on the second sub-cartridge 312.
In order to achieve a secure closure of the movement cartridge 310, in one embodiment, a side of the first sub-cartridge 311 facing away from the housing 100 and a side of the second sub-cartridge 312 facing away from the housing 100 are snap-fit connected. Through the snap connection, the first sub-cylinder 311 and the second sub-cylinder 312 can be stably closed, thereby supporting each driving wheel 320 to better fit on the surface of the pipeline.
In order to achieve a secure closure of the movable cartridge 310, in one embodiment, a side of the first sub-cartridge 311 facing away from the housing 100 and a side of the second sub-cartridge 312 facing away from the housing 100 are connected by a screw. In this embodiment, as shown in fig. 1 and 3, the second side of the first sub-cylinder 311 is provided with a first connection portion 313, the first connection portion 313 is provided with a first screw hole, the second side of the second sub-cylinder 312 is provided with a second connection portion 314, the second connection portion 314 is provided with a second screw hole, the first connection portion 313 abuts against the second connection portion 314, the first screw hole and the second screw hole are aligned and communicated with each other, a screw 610 is provided in the first screw hole and the second screw hole, one end of the screw 610 abuts against a surface of the second connection portion 314 facing away from the first connection portion 313, the other end of the screw 610 passes through the first screw hole and the second screw hole and is screwed with a nut 620, the nut 620 abuts against a surface of the first connection portion 313 facing away from the second connection portion 314, so that the first connection portion 313 and the second connection portion 314 are tightly abutted and the first sub-cylinder 311 and the second sub-cylinder 312 are tightly closed, better support each road wheel 320 to better conform to the surface of the pipe.
In one embodiment, the radius of the first sub-cylinder is larger than that of the second sub-cylinder, the radius of the running wheel on the first sub-cylinder is larger than that of the running wheel on the second sub-cylinder, the inner side surface of the running wheel on the first sub-cylinder and the inner side surface of the running wheel on the second sub-cylinder are on the same circle, a plurality of driving motors are arranged on the first sub-cylinder, the plurality of driving motors on the first sub-cylinder are in one-to-one corresponding driving connection with the plurality of running wheels on the first sub-cylinder, in the embodiment, by setting the radius of the first sub-cylinder to be larger, the radius of the second sub-drum is set to be smaller, the driving motor drives the driving wheel on the first sub-drum, the driving wheel on the second sub-drum moves along with the movement of the first sub-drum, therefore, the resistance on the second sub-cylinder is reduced, the overall resistance in the running process is reduced, and the pipeline leakage online detection device 10 runs more smoothly along the pipeline. It should be understood that although the radii of the first sub-cylinder and the second sub-cylinder are different, since both are concentric with the pipeline, or both are concentric, the length of the first connecting portion and the second connecting portion is set according to the radius difference between the two, so that the two can be connected.
In order to enable the motion cylinder 310 to better match the shape of the pipeline and be sleeved outside the pipeline, in an embodiment, as shown in fig. 5, the pipeline leakage online detection device 10 further includes a support frame 150, the support frame 150 includes a connection frame 160 and an arc plate 170, a cross section of the arc plate 170 is configured to be an arc, two sides of one surface of the arc plate 170 are respectively connected with the housing through the connection frame 160, and in this embodiment, the number of the connection frames is two. One side of the arc plate 170 is connected to one side of the housing through one connecting frame 160, and the other side of the arc plate 170 is connected to the other side of the housing through the other connecting frame 160.
The middle of the arc plate 170 is provided with a through hole 171, and the telescopic rod 412 movably passes through the through hole, so that the adsorption component 420 can pass through the through hole 171 to abut against the surface of the pipeline and be connected with the outer side surface of the pipeline. In this embodiment, the arc plate 170 is spaced from the housing, one side of the arc plate 170 is hinged to the first side of the first sub-cylinder 311, the other side of the arc plate 170 is hinged to the first side of the second sub-cylinder 312, and the first sub-cylinder 311, the arc plate 170 and the second sub-cylinder 312 are connected to form the moving cylinder 310. In this embodiment, the first sub-cylinder 311 and the second sub-cylinder 312 are connected by the arc plate 170, so that the shape of the moving cylinder 310 is more matched with the shape of the pipeline, and the rotation of the first sub-cylinder 311 and the second sub-cylinder 312 is realized, so that the rotation of the first sub-cylinder 311 and the second sub-cylinder 312 is not limited by the housing, and the rotation of the first sub-cylinder 311 and the second sub-cylinder 312 is more flexible, and can be more flexibly fixed or detached on the pipeline.
In one embodiment, the arc-shaped plate 170 is provided with a driving wheel, and the moving cylinder can be further supported outside the pipeline by arranging the driving wheel on the arc-shaped plate 170, so that the pipeline leakage online detection device can move more stably.
In order to better drive the traveling wheels 320 to move, in one embodiment, the number of the driving motors is multiple, and each driving motor is in driving connection with one traveling wheel 320. Each of the driving motors is electrically connected to the control processing module 230. Each driving motor is respectively arranged on the moving cylinder 310, and each driving motor is arranged on the moving cylinder 310 and close to the driving wheel, so that the driving motors respectively drive the running wheels 320, the transmission structure is simpler, and the cost is reduced.
In order to further improve the detection precision, in one embodiment, the pipeline leakage online detection device further comprises a flange detection module, the flange detection module comprises an optical fiber imaging sub-module and a transmission sub-module, the optical fiber imaging sub-module is arranged at the joint of the flanges of the two pipelines, and the optical fiber imaging sub-module is electrically connected with the transmission sub-module.
Specifically, the pipelines are connected through flanges, flanges are arranged at two ends of each pipeline respectively, and adjacent pipelines are connected through the flanges, so that the optical fiber imaging sub-modules of the flange over-detection modules are arranged at the joints of the flanges of the two adjacent pipelines. Therefore, the leakage condition of the joint of the adjacent flanges can be obtained through the optical fiber imaging sub-module, and the flange image is formed by the optical fiber imaging sub-module through imaging the joint of the flanges.
Specifically, when leakage is detected, the optical fiber imaging submodule sends the flange image subjected to optical fiber imaging to the control processing module through the transmission submodule, and sends the image to the remote server through the control processing module, so that a user of the remote server can accurately know the leakage condition and the leakage position. It is worth mentioning that, because the pipeline leakage on-line detection device can detect the occurrence of leakage, thereby triggering the optical fiber imaging submodule of the flange detection module to image the optical fiber at the pipeline joint, in addition, because the pipeline leakage on-line detection device checks back and forth, the occurrence and the position of leakage can be measured, but the specific image of leakage can not be obtained, and after the leakage position is determined, the leakage condition at the pipeline joint can be imaged by the flange detection module closest to the leakage position, the condition of leakage in the pipeline is obtained particularly by the optical fiber imaging technology, so that the monitoring personnel can know the leakage condition and the position more timely and more accurately.
In order to install the optical fiber imaging sub-module and the transmission sub-module, in one embodiment, the flange detection module comprises a flange sub-module, one side of the flange sub-module is connected with a flange of an adjacent pipeline, the other side of the flange sub-module is connected with a flange of another adjacent pipeline, and the optical fiber imaging sub-module and the transmission sub-module are arranged on the flange sub-module, in the embodiment, the flange sub-module is used for connecting flanges of two adjacent pipelines, the flange sub-module adopts the same structure as the existing flange on the connection structure, the difference is that the thickness of the flange sub-module is larger, the flange sub-module can be respectively connected with other flanges on two sides, the flange sub-module is thicker, the optical fiber imaging sub-module and the transmission sub-module are favorably installed, in the embodiment, the optical fiber imaging sub-module is arranged at the connection part of the, the flange sub-module is provided with a power supply module for supplying power to the optical fiber imaging sub-module and the transmission sub-module, and in addition, in order to protect the optical fiber imaging sub-module and the transmission sub-module, in some embodiments, the flange sub-module can be further provided with an installation shell, the optical fiber imaging sub-module and the transmission sub-module are arranged in the installation shell, and the optical fiber imaging sub-module and the transmission sub-module are protected by the installation shell, so that the optical fiber imaging sub-module and the transmission sub-module can. In this embodiment, the flange sub-module is used for connecting two pipelines, so that adjacent pipelines are connected, the optical fiber imaging sub-module is connected with the flange sub-module, the transmission sub-module is arranged on the flange sub-module, and the optical fiber imaging sub-module is used for imaging the leakage condition of the joint of the pipelines to form a flange image.
In one embodiment, a transmission module is further arranged in the shell, the transmission module is electrically connected with the control processing module, and the transmission module is used for receiving information sent by the transmission submodule, so that the control processing module can receive data, detected by the optical fiber imaging submodule, sent by the transmission submodule through the transmission module, and send the data detected by the optical fiber imaging submodule to the remote server through the communication module. In order to realize the communication between the transmission submodule and the transmission module, in one embodiment, the transmission submodule and the transmission module are bluetooth modules, and the connection between the transmission submodule and the transmission module can be realized through bluetooth, so that the communication between the transmission submodule and the transmission module is realized. In one embodiment, the transmission sub-module and the transmission module are mobile communication modules, for example, the mobile communication modules are 4G or 5G modules. In one embodiment, the transmission submodule is connected to a remote server, and is configured to send the image imaged by the optical fiber in the pipeline to the remote server through a mobile communication network.
In order to save electric energy of the flange detection module and enable the flange detection module to detect and obtain a flange image only when leakage occurs, in one embodiment, the control processing module is used for obtaining operation data of the detection module, when the variation amplitude of the operation data is larger than a preset amplitude threshold value within a preset time, the control processing module controls the driving motor to work, a trigger signal is sent to the transmission sub-module through the transmission module, the transmission sub-module is used for sending the trigger signal to the optical fiber imaging sub-module, the optical fiber imaging sub-module is used for imaging the flange connection part after the trigger signal is obtained to form a flange image, and the flange image is sent to the transmission module through the transmission sub-module. In this embodiment, when detecting that there is leakage in the pipeline, the control processing module not only controls the shell to move along the pipeline, but also sends a trigger signal to two adjacent flange detection modules, thereby obtaining the flange images on the two nearest connection flanges, and feeds back the flange images to the remote server, thereby detecting whether there is leakage in the joint of the pipeline, and simultaneously, the flange detection module is not required to maintain real-time detection, and the flange images are obtained only when the control processing module detects leakage, thereby effectively reducing the working time of the optical fiber imaging submodule, and saving the electric energy consumed by the optical fiber imaging submodule.
In one embodiment, the transmission submodule is a wired transmission submodule and is electrically connected with the control processing module through a communication cable, in this embodiment, a main board is arranged in the shell, the control processing module is arranged on the main board, and the main board is provided with a wired communication port, so that the transmission submodule is connected with the wired communication port of the main board through the cable, and thus, the electric connection with the control processing module is realized, and thus, the control processing module can receive data detected by the optical fiber imaging submodule sent by the transmission submodule and send the data detected by the optical fiber imaging submodule to the remote server through the communication module.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. An online pipeline leakage detection device, comprising: the device comprises a detection module, a communication module, a control processing module, a shell, a movement mechanism and a fixing mechanism;
an installation cavity is formed in the shell, the detection module, the communication module and the control processing module are arranged in the installation cavity, and the detection module is electrically connected with the communication module and the control processing module respectively;
the moving mechanism comprises a moving cylinder, a plurality of traveling wheels and a driving motor, the cross section of the moving cylinder is circular, the moving cylinder is sleeved outside the pipeline, the moving cylinder is sequentially provided with a plurality of moving grooves along the circumferential direction, each moving groove is internally provided with one traveling wheel in a rotating mode, the driving motor is in driving connection with the traveling wheels, and the shell is fixedly connected with the moving cylinder;
the fixing mechanism is connected with the shell and is used for being connected with the outer side surface of the pipeline;
the fixing mechanism comprises a telescopic assembly and an adsorption assembly, the telescopic assembly comprises an electric cylinder and a supporting rod, the supporting rod is connected to the outer side of the shell, a telescopic cavity is formed in the supporting rod along the axial direction, a telescopic hole is formed in the shell, the telescopic cavity is communicated with the installation cavity through the telescopic hole, the electric cylinder is arranged in the installation cavity, the electric cylinder is driven to be connected with a telescopic rod, the telescopic rod is movably arranged in the supporting rod, one end, far away from the electric cylinder, of the telescopic rod is connected with the adsorption assembly, and the adsorption assembly comprises a magnet.
2. The online pipe leakage detection device according to claim 1, wherein the movable cylinder includes a first sub-cylinder and a second sub-cylinder, the first sub-cylinder and the second sub-cylinder are respectively rotatably connected to two sides of the housing, the first sub-cylinder and the second sub-cylinder rotate relative to the housing, and the first sub-cylinder and the second sub-cylinder are opened in opposite directions, so that the movable cylinder is opened.
3. The online pipeline leakage detection device according to claim 2, wherein a side of the first sub-cylinder away from the housing and a side of the second sub-cylinder away from the housing are connected in a snap-fit manner.
4. The on-line pipe leakage detection device according to claim 3, wherein the number of the driving motors is plural, and each driving motor is connected with one driving wheel.
5. The pipeline leakage online detection device according to any one of claims 1-4, wherein the detection module comprises an ultrasonic detection module.
6. The pipeline leakage online detection device according to any one of claims 1 to 4, further comprising a flange detection module, wherein the flange detection module comprises an optical fiber imaging sub-module and a transmission sub-module, the optical fiber imaging sub-module is arranged at the joint of the flanges of the two pipelines, and the optical fiber imaging sub-module is electrically connected with the transmission sub-module.
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| CN112032572B (en) * | 2020-09-08 | 2021-12-21 | 河北振创电子科技有限公司 | Natural gas line leakage detection device |
| CN112460498B (en) * | 2020-11-16 | 2022-10-14 | 重庆电子工程职业学院 | Real-time liquid monitoring device based on Internet of things |
| CN115823504B (en) * | 2022-11-18 | 2023-10-31 | 江苏氟豪防腐科技有限公司 | Intelligent detection device is revealed to steel lining tetrafluoro pressure pipeline |
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Application publication date: 20200508 Assignee: Sichuan Hefeng Operation and Maintenance Technology Co.,Ltd. Assignor: HAINAN HEFENG YUNWEI TECHNOLOGY Co.,Ltd. Contract record no.: X2023980041406 Denomination of invention: Pipeline leakage online detection device Granted publication date: 20201211 License type: Common License Record date: 20230908 |
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