CN116792605A - Speed-controllable pipeline endoscopic detection device based on fluid driving - Google Patents
Speed-controllable pipeline endoscopic detection device based on fluid driving Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 48
- 239000012530 fluid Substances 0.000 title claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 136
- 230000001105 regulatory effect Effects 0.000 claims abstract description 133
- 239000010985 leather Substances 0.000 claims abstract description 52
- 230000003287 optical effect Effects 0.000 claims abstract description 34
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 66
- 239000003345 natural gas Substances 0.000 description 33
- 230000008844 regulatory mechanism Effects 0.000 description 12
- 238000007789 sealing Methods 0.000 description 12
- 230000007547 defect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
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- 230000007797 corrosion Effects 0.000 description 1
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- 238000005286 illumination Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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
- F16L55/40—Constructional aspects of the body
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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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
- G01N2021/9548—Scanning the interior of a cylinder
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- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Fluid Mechanics (AREA)
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- Biochemistry (AREA)
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a speed-controllable pipeline endoscopic detection based on fluid driving, which comprises a traction speed regulating mechanism; the traction speed regulating mechanism comprises a leather cup, the leather cup is coaxially sleeved on the front section of the traction speed regulating mechanism, one end of the front section of the traction speed regulating mechanism is connected with one end of the rear section of the traction speed regulating mechanism through a plurality of optical axes, and the optical axes are sequentially arranged along the circumferential direction of the pipe wall of the front section of the traction speed regulating mechanism; the flow regulating valve cover is connected to the optical axis in a sliding manner and can slide along the length direction of the optical axis; by adopting the scheme, the front air pressure and the rear air pressure of the traction speed regulating mechanism are inconsistent through the leather cup, the driving and the advancing based on the fluid are realized, and then the flow regulating valve cover is driven to move through the screw rod, so that the flow rate of the gas in unit time is controlled, and the operation speed of the device is controllable; based on fluid driving, fluid driving is realized by utilizing the fluid pressure difference between the front end and the rear end of the traction speed regulating mechanism, the energy carried by the device is reduced, and long-time and long-distance detection work tasks can be realized.
Description
Technical Field
The invention relates to the technical field of operation of storage and transportation pipelines, in particular to a speed-controllable pipeline endoscopic detection device based on fluid driving.
Background
The clean energy natural gas is transported by utilizing the natural gas transportation pipeline, so that the advantages of low transportation cost, quick construction, large oil and gas transportation quantity and the like can be ensured, and a large-scale natural gas pipeline transportation system can be formed by connecting all areas through pipelines. The natural gas transmission pipeline is generally hundreds or thousands of kilometers and is distributed in an environment deeply buried underground, and the safety of the natural gas transmission pipeline is easily reduced due to various factors such as maintenance period, ageing of transmission pipeline materials, corrosion of transmission materials, natural disasters and the like, so that a natural gas leakage event occurs. The natural gas leakage not only can pollute the surrounding environment, but also can cause serious threat to life safety and property safety of people due to explosion accidents caused by the natural gas leakage, so that the natural gas conveying pipeline can be detected regularly for long time, and corresponding pipeline maintenance work is adopted in the actual situation of the natural gas conveying pipeline. However, the traditional manual detection mode is difficult to realize full coverage detection because the natural gas conveying pipeline has long conveying distance and is in a complex geographical environment.
The existing long-distance detection mode is mainly through two technologies of magnetic leakage detection and ultrasonic detection, wherein the magnetic leakage detection technology utilizes a magnet carried by the magnetic leakage detection technology to generate a longitudinal magnetic loop field on the whole circumference of a pipe wall to detect a pipeline, and the ultrasonic technology utilizes the characteristics that ultrasonic waves uniformly propagate and can be transmitted on a metal surface to detect the pipeline. Because of the objective factor of the length of the natural gas conveying pipeline, the two detection technologies generate massive detection data, and the non-professional technicians can hardly extract useful data from the data to detect the pipeline, and the reality of the detection data is hardly determined due to the influence of the pre-buried geographic environment condition of the natural gas conveying pipeline, and the accuracy of the data needs to be verified through multiple detection operations so as to implement the maintenance and the maintenance scheme of the corresponding pipeline according to the final result. The pipeline CCTV technology with visual image display is also adopted to detect the pipeline, but the mode has short single detection distance, needs professional operators to conduct command operation, wastes time and labor, and has the shortest distance of several kilometers from site to site, and no access in the middle for the method to detect the natural gas conveying pipeline.
Disclosure of Invention
The invention aims to provide a speed-controllable pipeline endoscopic detection device based on fluid driving, by adopting the scheme, the front and rear air pressures of a traction speed regulating mechanism are inconsistent through a leather cup, the driving and advancing based on the fluid are realized, and then a flow regulating valve cover is driven to move through a screw rod, so that the flow rate of gas in unit time is controlled, and the operation speed of the device is controllable; based on fluid driving, fluid driving is realized by utilizing the fluid pressure difference between the front end and the rear end of the traction speed regulating mechanism, the energy carried by the device is reduced, and long-time and long-distance detection work tasks can be realized.
The invention is realized by the following technical scheme:
a speed-controllable pipeline endoscopic detection device based on fluid driving comprises a traction speed regulating mechanism;
the traction speed regulating mechanism comprises a leather cup, the leather cup is coaxially sleeved on the front section of the traction speed regulating mechanism, one end of the front section of the traction speed regulating mechanism is connected with one end of the rear section of the traction speed regulating mechanism through a plurality of optical axes, and the optical axes are sequentially arranged along the circumferential direction of the pipe wall of the front section of the traction speed regulating mechanism;
the flow regulating valve cover is connected to the optical axis in a sliding manner, and can slide along the length direction of the optical axis.
Compared with the prior art, the invention provides the speed-controllable pipeline endoscopic detection device based on fluid driving, which comprises a traction speed regulating mechanism, wherein the traction speed regulating mechanism comprises a leather cup and a traction speed regulating mechanism front section, the middle part of the leather cup is opened and sleeved on the traction speed regulating mechanism front section, and at the moment, the leather cup can be pushed by natural gas in the natural gas pipeline, so that pressure difference is formed between the front and the rear of the leather cup, and the device is driven to advance by fluid; the two ends of the front section of the traction speed regulating mechanism are both open, one end of the front section of the traction speed regulating mechanism is connected with one end of the rear section of the traction speed regulating mechanism through a plurality of optical axes, the optical axes are arranged on the pipe walls of the front section of the traction speed regulating mechanism and the rear section of the traction speed regulating mechanism and are parallel to each other, at the moment, the length of each optical axis is a device speed regulating section, and the optical axes are preferably three optical axes; the device comprises a device speed regulation section, a traction speed regulation mechanism, a speed regulation valve cover and a speed regulation valve, wherein the flow speed regulation valve cover is in sliding connection with an optical axis and can slide along the length direction of the optical axis, the other end of the front section of the traction speed regulation mechanism is provided with a flow regulation hole, and when the flow regulation valve cover is positioned at the leftmost side as shown in figure 2, natural gas in a natural gas pipeline can flow in the front section of the traction speed regulation mechanism and the rear section of the traction speed regulation mechanism while pushing a leather cup, and flows out of the flow regulation hole of the front section of the traction speed regulation mechanism, at the moment, the running speed of the device is slowest, and by gradually driving the flow regulation valve cover to move rightwards, namely, when the flow regulation valve cover is closer to the front section of the traction speed regulation mechanism, the flow regulation hole outputs less per unit time, so that the natural gas pushing the leather cup advances, and the pressure difference is changed, and is controlled; when the flow speed regulating valve cover moves to the rightmost side, the flow speed regulating valve cover can seal an opening at one end of the front section of the traction speed regulating mechanism, and the running speed of the device is the fastest; the diameter of the leather cup is preferably the same as the inner diameter of the natural gas pipeline, and the leather cup further drives the device to move.
Further preferably, the traction speed regulating mechanism further comprises a screw rod driving motor, the screw rod driving motor is positioned at the rear section of the traction speed regulating mechanism, a screw rod is arranged at the output end of the screw rod driving motor, one end of the screw rod extends into the front section of the traction speed regulating mechanism, and the middle part of the flow regulating valve cover is provided with a threaded hole and is sleeved on the screw rod; the sliding valve is used for precisely controlling the sliding of the flow speed regulating valve cover.
Further optimized, the front section of the traction speed regulating mechanism is also fixedly provided with a screw rod bracket, the screw rod bracket is rotationally connected with one end of the screw rod, and the screw rod can rotate around the axis of the screw rod; is used for ensuring the stable operation of the screw rod.
Further optimizing, the front section of the traction speed regulating mechanism is sequentially sleeved with a plurality of leather cups along the length direction of the front section of the traction speed regulating mechanism, leather cup spacing rings sleeved on the front section of the traction speed regulating mechanism are arranged between every two adjacent leather cups, and the leather cups and the leather cup spacing rings are fixed through leather cup fixing screws; the device is used for realizing stable traction of the leather cup.
Further optimized, the rear section of the traction speed regulating mechanism is fixedly sleeved with a supporting wheel frame, and a plurality of supporting wheels capable of walking on the pipe wall are uniformly distributed on the supporting wheel frame along the circumferential direction of the rear section of the traction speed regulating mechanism; the device is used for guaranteeing stable movement of the device during detection operation in fluid.
The device is further optimized and further comprises a connecting mechanism and a function expansion mechanism, wherein the function expansion mechanism comprises an expansion ring joint pipe body, the head end of the expansion ring joint pipe body is connected with one end of the rear section of the traction speed regulating mechanism through the connecting mechanism, and the connecting mechanism is a universal joint; the traction device is used for carrying out traction according to the length direction of the natural gas pipeline.
Further preferably, the support wheel frames are fixedly sleeved on the expansion ring joint pipe body and the rear section of the traction speed regulating mechanism, and a plurality of support wheels capable of walking on the pipe wall are uniformly distributed on the support wheel frames along the circumferential direction of the rear section of the traction speed regulating mechanism or the expansion ring joint pipe body; for stabilizing the movement of the function expanding mechanism within the natural gas pipeline.
Further optimizing, wherein any one or more supporting wheels are mileage wheels, and the mileage wheels are used for measuring the speed and recording the mileage; for measuring the speed and recording mileage.
Further optimizing, the tail end of the expansion joint pipe body is provided with a camera and an LED light source; the device is used for collecting the internal environment of the pipeline through the camera, so that the position of the defect in the pipeline is accurately positioned, and the definition of the image is ensured through the irradiation of the LED light source, wherein the camera is a CCD camera.
Further optimizing, the camera and the LED light source are both positioned at the tail end of the expansion ring joint pipe body and inside the expansion ring joint pipe body, and a space is reserved between the camera and the LED light source and a port at the tail end of the expansion ring joint pipe body; the camera is arranged on the axis of the expansion joint pipe body, and the LED light source surrounds the camera and is arranged coaxially with the expansion joint pipe body; the LED protection device is used for protecting the camera and the LED light source.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention is based on fluid driving, utilizes the fluid pressure difference at the front end and the rear end of the traction speed regulating mechanism to realize fluid driving, reduces the energy carried by the device, and can realize long-time and long-distance detection work tasks;
2. according to the invention, the screw rod driving motor is controlled by the traction speed regulating mechanism, the mileage wheel and the controller of the pipeline device, the distance between the flow regulating valve cover and the supporting bracket is regulated, and the opening degree is regulated, so that the moving speed of the device is controlled autonomously, the speed is controllable, and the detection accuracy can be effectively improved;
3. according to the invention, the optical axis is added to be matched with the valve cover for speed regulation, the valve cover is arranged on the optical axis, the optical axis is distributed on the outer wall of the pipe body and is connected with the front pipe body and the rear pipe body, so that the diameter of the flow regulation opening is maximum, namely the speed regulation range is maximum;
4. the traction speed regulating mechanism and the function expanding mechanism are both provided with the supporting wheels, and the supporting wheels are arranged at 120 degrees between two adjacent supporting wheels, so that the speed-controllable pipeline endoscopic detection device based on fluid driving can be effectively assisted to stably move when detecting in fluid, and the reliability is high;
5. according to the invention, through arranging one mileage wheel on each supporting wheel frame of the expansion ring joint pipe body for speed measurement and mileage recording, the speed-controllable closed loop and the accurate positioning of the pipeline defects are ensured, and data support is provided for detailed detection of specific positions;
6. the image acquisition part in the function expansion mechanism is positioned at the tail end of the device, so that the interference of the environment in the pipeline on the image acquisition part can be effectively prevented, and the definition of the image is ensured.
7. The pipeline endoscopic detection device provided by the invention is more convenient and intelligent, and has the advantages of high reliability, expandability and the like.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic diagram of a structure provided by the present invention;
FIG. 2 is a cross-sectional view provided by the present invention;
FIG. 3 is a left side view of the traction governor mechanism provided by the present invention;
FIG. 4 is a schematic structural view of a connecting mechanism according to the present invention;
FIG. 5 is a schematic structural diagram of an expansion link mechanism provided by the present invention;
fig. 6 is a right side view of the expansion link mechanism provided by the present invention.
In the drawings, the reference numerals and corresponding part names:
the device comprises a 1-traction speed regulating mechanism, a 2-connecting mechanism, a 3-function expanding mechanism, a 101-flow regulating hole, a 102-cup fixing screw, a 103-cup spacer ring, a 104-cup, a 105-optical axis, a 106-flow regulating valve cover, a 107-screw driving motor, a 108-supporting wheel frame, 109-supporting wheels, a 110-sealing hose interface, a 111-sealing pipe cover, a 112-motor sealing cover, a 113-screw, a 114-screw bracket, a 115-traction speed regulating mechanism front section, a 116-traction speed regulating mechanism rear section, a 201-universal joint connector, a 202-sealing hose, a 301-expansion ring pipe body, a 302-mileage wheel, a 303-camera and a 304-LED light source.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Examples
The embodiment provides a speed-controllable pipeline endoscopic detection device based on fluid driving, which is shown in fig. 1 to 6 and comprises a traction speed regulating mechanism 1;
the traction speed regulating mechanism 1 comprises a leather cup 104, wherein the leather cup 104 is coaxially sleeved on a traction speed regulating mechanism front section 115, one end of the traction speed regulating mechanism front section 115 is connected with one end of a traction speed regulating mechanism rear section 116 through a plurality of optical axes 105, and the optical axes 105 are sequentially arranged along the pipe wall of the traction speed regulating mechanism front section 115 in a circumferential direction;
the optical axis 105 is slidably connected with a flow regulating valve cover 106, and the flow regulating valve cover 106 can slide along the length direction of the optical axis 105.
Compared with the prior art, because the natural gas conveying pipeline has long conveying distance and is in a complicated geographical environment, the traditional manual detection mode is difficult to realize full coverage detection, the invention provides a speed-controllable pipeline endoscopic detection device based on fluid driving, which comprises a traction speed regulating mechanism 1, wherein the traction speed regulating mechanism 1 comprises a leather cup 104 and a traction speed regulating mechanism front section 115, the middle part of the leather cup 104 is opened and sleeved on the traction speed regulating mechanism front section 115, and at the moment, the natural gas in the natural gas pipeline can push the leather cup 104 to form pressure difference between the front and the rear of the leather cup 104, so that the device is driven to advance by fluid; wherein, two ends of the front section 115 of the traction speed regulating mechanism are open, one end of the front section 115 of the traction speed regulating mechanism is connected with one end of the rear section 116 of the traction speed regulating mechanism through a plurality of optical axes 105, the optical axes 105 are arranged on the pipe walls of the front section 115 of the traction speed regulating mechanism and the rear section 116 of the traction speed regulating mechanism and are parallel to each other, at this time, the length of the optical axes 105 is the device speed regulating interval, and the optical axes 105 are preferably three optical axes 105; the flow speed regulating valve cover is arranged in the device speed regulating section, the flow speed regulating valve cover is in sliding connection with the optical axis 105 and can slide along the length direction of the optical axis 105, the other end of the front section 115 of the traction speed regulating mechanism is provided with a flow regulating hole 101, and when the flow regulating valve cover 106 is positioned at the leftmost side as shown in fig. 2, natural gas in a natural gas pipeline can flow in from between the front section 115 of the traction speed regulating mechanism and the rear section 116 of the traction speed regulating mechanism and flow out from the flow regulating hole 101 of the front section 115 of the traction speed regulating mechanism at the moment when the leather cup 104 is pushed, the running speed of the device is slowest, and by gradually driving the flow speed regulating valve cover to move rightwards, namely, when the flow speed regulating valve cover is closer to the front section 115 of the traction speed regulating mechanism, the flow regulating hole 101 outputs less per unit time, so that the natural gas pushing the leather cup 104 advances is more, and pressure difference is changed, and is controlled running speed of the device is controlled is realized; when the flow speed regulating valve cover moves to the rightmost side, the flow speed regulating valve cover can seal an opening at one end of the front section 115 of the traction speed regulating mechanism, and the running speed of the device is the fastest; wherein the diameter of the cup 104 is preferably the same as the inner diameter of the natural gas pipeline, and the device is further driven to move.
In this embodiment, the traction speed regulation mechanism 1 further includes a screw driving motor 107, the screw driving motor 107 is located at a rear section 116 of the traction speed regulation mechanism, an output end of the screw driving motor 107 is provided with a screw 113, one end of the screw 113 extends into a front section 115 of the traction speed regulation mechanism, and a threaded hole is formed in a middle portion of the flow regulation valve cover 106 and is sleeved on the screw 113; in order to precisely control the sliding of the flow speed regulation valve cover, in the scheme, a screw rod driving motor 107 is further arranged in a rear section 116 of the traction speed regulation mechanism, wherein the output end of the screw rod driving motor 107 is provided with a screw rod 113, so that the screw rod 113 is controlled to realize forward rotation and reverse rotation, and one end of the rear section 116 of the traction speed regulation mechanism is provided with a motor sealing cover 112, so that the screw rod driving motor 107 is sealed inside, and accidents are avoided; the screw rod 113 can penetrate from the motor sealing cover 112 and extend into the front section 115 of the traction speed regulating mechanism, external threads are arranged on the screw rod 113, a threaded hole is arranged in the middle of the flow speed regulating valve cover, and the flow speed regulating valve cover is sleeved on the screw rod 113, so that the screw connection is realized, and the flow speed regulating valve cover can be driven to move back and forth when the screw rod 113 rotates due to the constraint of the optical axis 105 on the flow speed regulating valve cover, so that the speed is controllable.
In this embodiment, a screw rod bracket 114 is further fixedly disposed in the front section 115 of the traction speed adjusting mechanism, the screw rod bracket 114 is rotatably connected with one end of the screw rod 113, and the screw rod 113 can rotate around its own axis; in order to ensure stable operation of the screw 113, in the scheme, a screw support 114 is fixedly arranged in the front section 115 of the traction speed regulating mechanism, one end of the screw 113 is connected to the screw support 114, the screw 113 is supported by the screw support 114, and the screw 113 can freely rotate on the screw support 114 and can move back and forth to regulate the position.
In this embodiment, the front section 115 of the traction speed adjusting mechanism is sequentially sleeved with a plurality of leather cups 104 along its length direction, a leather cup spacer ring 103 sleeved on the front section 115 of the traction speed adjusting mechanism is disposed between adjacent leather cups 104, and the plurality of leather cups 104 and the leather cup spacer ring 103 are fixed by a leather cup fixing screw 102; in order to realize stable traction of the leather cup 104, in this scheme, the leather cup 104 may be provided with a plurality of leather cups, but in this embodiment, two leather cup spacing rings 103 are preferably provided between the two leather cups 104, the leather cup spacing rings 103 are also sleeved on the front section 115 of the traction speed regulating mechanism, and at this time, the leather cup 104 and the leather cup spacing rings 103 are sequentially penetrated through by the leather cup fixing screws 102, so as to realize fixation.
In this embodiment, a supporting wheel frame 108 is fixedly sleeved on the rear section 116 of the traction speed regulating mechanism, and a plurality of supporting wheels 109 capable of walking on the pipe wall are uniformly distributed on the supporting wheel frame 108 along the circumferential direction of the rear section 116 of the traction speed regulating mechanism; in order to ensure stable movement of the device during detection operation in fluid, in the scheme, the rear section 116 of the traction speed regulating mechanism is sleeved with the supporting wheel frame 108, the supporting wheel frame 108 is fixedly connected with the rear section 116 of the traction speed regulating mechanism, a plurality of supporting wheels 109 are uniformly distributed along the circumferential direction of the rear section 116 of the traction speed regulating mechanism, the number of the supporting wheels 109 is preferably 3, the included angles among the three supporting wheels 109 are 120 degrees, and at the moment, the device can walk on the inner wall of a natural gas pipeline through the supporting wheels 109 to realize stable movement.
In this embodiment, the device further includes a connection mechanism 2 and a function expansion mechanism 3, where the function expansion mechanism 3 includes an expansion ring joint pipe body 301, the head end of the expansion ring joint pipe body 301 is connected with one end of the rear section 116 of the traction speed regulation mechanism through the connection mechanism 2, and the connection mechanism 2 is a universal joint; in order to carry out traction according to the length direction of the natural gas pipeline, the scheme is further provided with a connecting mechanism 2 and a function expansion mechanism 3, wherein the traction speed regulating mechanism 1 can traction the function expansion mechanism 3 through the connecting mechanism 2, the function expansion mechanism 3 comprises an expansion joint pipe body 301, a universal joint is arranged at the head end of the expansion joint pipe body 301, a universal joint is also arranged at the other end of the rear section 116 of the traction speed regulating mechanism, and the two universal joints are connected; a sealing tube cover 111 is also provided on the other end of the traction governor back section 116 to seal the lead screw drive motor 107 within the traction governor front section 115.
In this embodiment, the support wheel frames 108 are fixedly sleeved on the expansion joint pipe 301 and the traction speed adjusting mechanism rear section 116, and a plurality of support wheels 109 capable of walking on the pipe wall are uniformly distributed on the support wheel frames 108 along the circumferential direction of the traction speed adjusting mechanism rear section 116 or the expansion joint pipe 301; in order to make the function expansion mechanism 3 stably move in the natural gas pipeline, in this scheme, a plurality of support wheel frames 108 can be sleeved on the expansion ring joint pipe body 301, in this scheme, preferably, one support wheel frame 108 is sleeved at two ends respectively, and 3 support wheels 109 are circumferentially arranged on the support wheel frame 108, so that stable movement is realized.
In this embodiment, among the plurality of supporting wheels 109 carried by the supporting wheel frame 108 on the expansion joint pipe 301, any one or more supporting wheels 109 are mileage wheels 302, and the mileage wheels 302 are used for measuring the speed and recording the mileage; for measuring the speed and recording the mileage, in this embodiment, one or more supporting wheels 109 on the supporting wheel frame 108 are set as mileage wheels 302, and in this embodiment, 2 supporting wheels 109 and one mileage wheel 302 are preferably set on the supporting wheel frame 108 for assembly, where the mileage wheels 302 are provided with an encoder and other components, so as to realize the speed measurement and record the mileage.
In this embodiment, a camera 303 and an LED light source 304 are disposed at the tail end of the expansion joint tube 301; the camera 303 is used for collecting the internal environment of the pipeline, so that the position of the defect in the pipeline is accurately positioned, and the definition of the image is ensured through the irradiation of the LED light source 304, wherein the camera 303 is a CCD camera.
In this embodiment, the camera 303 and the LED light source 304 are both located at the tail end of the expansion joint pipe 301 and inside the expansion joint pipe 301, and a space is left between the camera 303 and the LED light source 304 and a port at the tail end of the expansion joint pipe 301; the camera 303 is arranged on the axis of the expansion joint pipe 301, and the LED light source 304 surrounds the camera 303 and is arranged coaxially with the expansion joint pipe 301; in order to protect the camera 303 and the LED light source 304, in the scheme, the camera 303 and the LED light source 304 are arranged at the tail end position of the expansion joint pipe 301, so that the position of a defect in a pipeline is positioned; the camera 303 and the LED light source 304 are arranged inside the expansion joint pipe 301 and are not flush with the pipe orifice of the expansion joint pipe 301, i.e. a certain distance is reserved between the camera 303 and the port at the tail end of the expansion joint pipe 301, and the reserved position can protect the image acquisition part when carrying out accident processing; the camera 303 is disposed on the axis of the expansion joint pipe 301, and the ED light source surrounds the camera 303 and is disposed coaxially with the expansion joint pipe 301, so as to be distributed in concentric circles, and provide a uniform light source for the camera 303, thereby improving the definition of the image.
In this embodiment, a controller is further disposed in the expansion joint pipe 301, and the LED light source 304 and the camera 303 are connected to the controller in the expansion joint pipe 301 through signal lines; and a sealing hose connector 110 is reserved at the sealing tube cover 111, and a signal wire of the screw rod driving motor 107 is connected with a controller in the function expanding mechanism 3 through a sealing hose 202 between the sealing hose connector at the end of the traction speed regulating mechanism 1 of the pipeline device and the sealing hose connector of the function expanding mechanism 3.
Working principle: the invention designs a speed-controllable pipeline endoscopic detection device based on fluid driving, which comprises a traction speed regulating mechanism 1 and a function expanding mechanism 3, wherein a universal joint is used as a connecting mechanism 2 for connecting the pipeline endoscopic detection device. After the device enters a weather heat conveying pipeline, the pipeline endoscopic detection device is subjected to inconsistent air pressure before and after the traction speed regulating mechanism 1 by the pipeline, so that the driving and advancing based on fluid are realized, the distance between a flow regulating valve of the traction speed regulating mechanism 1 and a flow regulating hole 101 is used for controlling the flow rate of gas in unit time, and the running speed of the device is controllable; the CCD camera carried by the function expansion mechanism 3 is used for realizing image acquisition of the inside of the pipeline under the condition of illumination of the LED lamp, and the assembled mileage wheel 302 records detailed operation mileage when working and running in the pipeline, and all data acquisition is completed and stored in the SD card. After the detection task is completed, the acquired image data corresponds to the record data of the mileage wheel 302 one by one, the condition in the pipeline can be known in time through the image data, and the related information of the defect position of the pipeline can be obtained according to the actual situation, so that the detection task of the natural gas conveying pipeline is completed, and data support is provided for the follow-up pipeline repairing and maintaining scheme. The device meets the detection tasks of long distance and long working time on the conveying pipeline, the pipeline actual condition can be accurately judged more intuitively by adopting the pipeline inner image acquisition mode, the designed pipeline inner image mode can prevent the pipeline inner environment from influencing the obtained pipeline inner actual environment condition image, and the sensor carried by the device and the written algorithm program can accurately position the position of the defect in the pipeline.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The speed-controllable pipeline endoscopic detection device based on fluid driving is characterized by comprising a traction speed regulating mechanism (1);
the traction speed regulating mechanism (1) comprises a leather cup (104), the leather cup (104) is coaxially sleeved on a traction speed regulating mechanism front section (115), one end of the traction speed regulating mechanism front section (115) is connected with one end of a traction speed regulating mechanism rear section (116) through a plurality of optical axes (105), and the optical axes (105) are sequentially arranged along the pipe wall of the traction speed regulating mechanism front section (115) in a circumferential direction;
the optical axis (105) is connected with a flow regulating valve cover (106) in a sliding manner, and the flow regulating valve cover (106) can slide along the length direction of the optical axis (105).
2. The speed-controllable pipeline endoscopic detection device based on fluid driving according to claim 1, wherein the traction speed regulating mechanism (1) further comprises a screw rod driving motor (107), the screw rod driving motor (107) is located at a rear section (116) of the traction speed regulating mechanism, a screw rod (113) is arranged at an output end of the screw rod driving motor (107), one end of the screw rod (113) stretches into the front section (115) of the traction speed regulating mechanism, and a threaded hole is formed in the middle of the flow regulating valve cover (106) and is sleeved on the screw rod (113).
3. The speed-controllable endoscopic detection device for the pipeline based on fluid driving according to claim 2, wherein a screw rod support (114) is further fixedly arranged in the front section (115) of the traction speed regulating mechanism, the screw rod support (114) is rotatably connected with one end of a screw rod (113), and the screw rod (113) can rotate around an axis of the screw rod.
4. The speed-controllable pipeline endoscopic detection device based on fluid driving according to claim 1, wherein a plurality of leather cups (104) are sequentially sleeved on the front section (115) of the traction speed regulating mechanism along the length direction of the front section (115), leather cup spacing rings (103) sleeved on the front section (115) of the traction speed regulating mechanism are arranged between the adjacent leather cups (104), and the leather cups (104) and the leather cup spacing rings (103) are fixed through leather cup fixing screws (102).
5. The speed-controllable endoscopic pipeline detection device based on fluid driving according to claim 1, wherein a supporting wheel frame (108) is fixedly sleeved on the rear section (116) of the traction speed regulating mechanism, and a plurality of supporting wheels (109) capable of walking on the pipe wall are uniformly distributed on the supporting wheel frame (108) along the circumferential direction of the rear section (116) of the traction speed regulating mechanism.
6. The speed-controllable endoscopic pipeline detection device based on fluid driving according to claim 1, further comprising a connecting mechanism (2) and a function expanding mechanism (3), wherein the function expanding mechanism (3) comprises an expansion joint pipe body (301), the head end of the expansion joint pipe body (301) is connected with one end of a rear section (116) of the traction speed regulating mechanism through the connecting mechanism (2), and the connecting mechanism (2) is a universal joint.
7. The speed-controllable endoscopic detection device for the pipeline based on fluid driving according to claim 6, wherein the support wheel frames (108) are fixedly sleeved on the expansion joint pipe body (301) and the traction speed regulating mechanism rear section (116), and a plurality of support wheels (109) capable of walking on the pipe wall are uniformly distributed on the support wheel frames (108) along the circumferential direction of the traction speed regulating mechanism rear section (116) or the expansion joint pipe body (301).
8. The speed-controllable endoscopic detection device for a pipeline based on fluid driving according to claim 7, wherein any one or more supporting wheels (109) of a plurality of supporting wheels (109) carried by a supporting wheel frame (108) on the expansion joint pipe body (301) are mileage wheels (302), and the mileage wheels (302) are used for measuring speed and recording mileage.
9. The fluid-driven speed-controllable pipeline endoscopic detection device according to claim 6, wherein the tail end of the expansion joint pipe body (301) is provided with a camera (303) and an LED light source (304).
10. The speed-controllable pipeline endoscope detection device based on fluid driving according to claim 9, wherein the camera (303) and the LED light source (304) are both positioned at the tail end of the expansion joint pipe body (301) and are positioned inside the expansion joint pipe body (301), and a space is reserved between the camera (303) and the LED light source (304) and a port at the tail end of the expansion joint pipe body (301); the camera (303) is arranged on the axis of the expansion joint pipe body (301), and the LED light source (304) surrounds the camera (303) and is arranged coaxially with the expansion joint pipe body (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210277426.6A CN116792605A (en) | 2022-03-18 | 2022-03-18 | Speed-controllable pipeline endoscopic detection device based on fluid driving |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210277426.6A CN116792605A (en) | 2022-03-18 | 2022-03-18 | Speed-controllable pipeline endoscopic detection device based on fluid driving |
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| CN116792605A true CN116792605A (en) | 2023-09-22 |
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| CN202210277426.6A Pending CN116792605A (en) | 2022-03-18 | 2022-03-18 | Speed-controllable pipeline endoscopic detection device based on fluid driving |
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