CN115338202B - Flexible pipe cleaner with diameter measuring function - Google Patents
Flexible pipe cleaner with diameter measuring function Download PDFInfo
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- CN115338202B CN115338202B CN202211263762.1A CN202211263762A CN115338202B CN 115338202 B CN115338202 B CN 115338202B CN 202211263762 A CN202211263762 A CN 202211263762A CN 115338202 B CN115338202 B CN 115338202B
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0325—Control mechanisms therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
- G01B7/13—Internal diameters
Abstract
The application relates to the field of pipeline cleaning, and provides a flexible pipe cleaner with a diameter measuring function, which comprises a flexible shell, an electronic cabin and a fluid control assembly, wherein a cavity is coaxially arranged in the flexible shell to accommodate the electronic cabin and the fluid control assembly; an electronic assembly is arranged in the electronic bin, the electronic assembly comprises a magnetizer, an insulating framework, an exciting coil, a first detection coil and a second detection coil, and the magnetizer and the exciting coil are matched to emit a magnetic field and are matched with the first detection coil and the second detection coil to receive so as to obtain the data of the pipe wall; the fluid control assembly is provided with a drainage tube, a drainage tube and a nozzle, so that the aim of cleaning accumulated materials in the pipeline through fluid media in the pipeline is fulfilled. The pipeline cleaner cleans the pipeline through the flexible shell and the fluid control assembly, and the electronic bin and the electronic assembly are convenient to measure the data such as the inner diameter of the pipeline, so that the pipeline cleaner is combined with the inner diameter detection process, the blocking risk is reduced, and the detection efficiency is improved.
Description
Technical Field
The application relates to the field of pipeline cleaning, in particular to a flexible pipe cleaner with a diameter measuring function.
Background
Buried pipeline is the important facility that is used for long distance transport energy supplies such as oil, gas, and the pressure environment of underground to and the structural defect of pipeline self, temperature and life-span scheduling problem can all cause the influence to buried pipeline's normal operating, need regularly carry out the integrality to the pipeline and detect in order to ensure that the pipeline can normal operating.
Since the buried in-service pipeline is deeply buried underground, the integrity of the pipeline cannot be detected in an external detection mode, and the detection in the pipeline becomes an important means for detecting the integrity of the pipeline. Under the condition that the internal condition of the in-service pipeline is unknown, accumulation possibly exists to influence the diameter measuring effect, and the interior of the pipeline needs to be cleaned before detection in the pipeline, so that the influence of the accumulation in the pipeline on the diameter measurement is avoided.
However, the deformation of the typical in-pipeline detector is small, the blocking risk is high when the detector is used in a pipeline in service, accumulated materials in the pipeline cannot be cleared by one-time pipe cleaning, and the passing performance of the in-pipeline detector cannot be improved. Although the method of cleaning the pipe for many times can increase the passing ability of the detector in the pipe, the preparation time before detection is too long, so that the pipe detection efficiency is low. In a word, the problems of high blocking risk and low detection efficiency exist in the process of detecting in the pipeline.
Disclosure of Invention
The application provides a flexible pipe cleaner with diameter measuring function to there is the stifled problem that risk is high and detection efficiency is low in the in-process of solving carrying out the interior detection of pipeline to the card.
The invention provides a flexible pipe cleaner with a diameter measuring function, which comprises a flexible shell, an electronic cabin and a fluid control assembly, wherein: the flexible shell is a cylindrical shell, one end of the flexible shell is provided with a circular truncated cone-shaped bulge, the other end of the flexible shell is provided with a cylindrical cavity which is coaxial with the flexible shell, and the length of the cavity is smaller than the axial length of the flexible shell; the electronic bin is a cylindrical bin body and is arranged in the cavity of the flexible shell; an electronic component is arranged in the electronic bin; the electronic assembly comprises a magnetizer, an insulating framework, an exciting coil, a first detection coil and a second detection coil; the magnetizer is of a cylindrical structure, the exciting coil is wound on the magnetizer, the insulating framework covers the exciting coil, the first detection coil and the second detection coil are respectively arranged at two ends of the insulating framework, and the first detection coil and the second detection coil are connected in series; the fluid control assembly is disposed between the flexible housing and the electronics cartridge, the fluid control assembly including a plurality of draft tubes, a draft tube, and a nozzle; the drainage tubes are hollow cylindrical tubes, and the drainage tubes are uniformly distributed between the flexible shell and the electronic bin along the circumferential direction of the section of the flexible shell; one end of the drainage pipe is connected with the drainage pipe, and the other end of the drainage pipe is connected with the nozzle.
The flexible casing is arranged on the pipe cleaner, so that the passing performance of the pipe cleaner is increased and the blocking risk is reduced on the basis of cleaning accumulated substances in the pipeline. Meanwhile, the electronic bin is used for protecting the electronic assembly, and the electronic assembly realizes measurement of deformation of the pipeline by arranging the magnetizer, the insulating framework, the exciting coil, the first detection coil and the second detection coil. The flow control component can control the flow rate of fluid media in the pipeline, accumulated materials on the wall of the pipeline are cleaned, a better pipeline cleaning effect is achieved, and the blocking risk of the pipeline cleaner is further reduced.
Optionally, the electronic device further comprises a pressure-bearing bin, wherein the pressure-bearing bin is a cylindrical cylinder with one closed end, the pressure-bearing bin is arranged in the cavity of the flexible shell, and the pressure-bearing bin is sleeved outside the electronic bin; and the unsealed end of the pressure-bearing bin is provided with a mounting flange, and the electronic bin is sleeved in the pressure-bearing bin through the mounting flange. The pressure-bearing bin is sleeved with the electronic bin, so that the electronic bin is protected, and damage caused by fluid invasion is avoided.
Optionally, the pressure sensor is arranged between the flexible shell and the pressure-bearing bin; the pressure sensor comprises a first pressure sensor and a second pressure sensor, the first pressure sensor is arranged on the side surface of the drainage pipe, and the second pressure sensor is arranged on the side surface of one end of the drainage pipe, which is far away from the drainage pipe; the pressure-bearing bin further comprises a signal line and a plug connector, the electronic bin comprises a connector, the plug connector is arranged at one end, closed, of the pressure-bearing bin, one end of the plug connector is connected with the connector through the signal line, and the first pressure sensor and the second pressure sensor are connected with the plug connector through the signal line. The pressure sensor is used for acquiring pressure information of the pipe cleaner in the pipeline.
Optionally, the electronic assembly further includes a power module and a circuit board, and the power module is electrically connected to the exciting coil, the connector and the circuit board respectively; the circuit board is connected with the connector, the first detection coil and the second detection coil respectively. The power module can provide power for exciting coil, circuit board, pressure sensor, and the data that pressure sensor, first detection coil and second detection coil were obtained can then be acquireed to the circuit board.
Optionally, a transmission unit and a processor are arranged on the circuit board, and the transmission unit is connected with the processor; the processor is configured to receive signals detected by the first pressure sensor, the second pressure sensor, the first detection coil, and the second detection coil through the transmission unit. The circuit board enables the processor to receive signals detected by the pressure sensor, the first detection coil and the second detection coil by arranging the transmission unit and the processor thereon, and processes data through the processor.
Optionally, the transmission unit includes a power amplification circuit and a signal acquisition circuit, and one end of the power amplification circuit and one end of the signal acquisition circuit are respectively connected to the processor; the other end of the power amplification circuit is connected with the excitation coil, and the other end of the signal acquisition circuit is respectively connected with the connector, the first detection coil and the second detection coil; the processor is configured to control the exciting coil to send out a positioning signal through the power amplifying circuit, and acquire signals detected by the first pressure sensor, the second pressure sensor, the first detecting coil and the second detecting coil through the signal acquisition circuit. The excitation coil can send out a positioning signal through the power amplification circuit so as to position the deformation point, and the signal acquisition circuit acquires the pressure sensor, the first detection coil and the second detection coil and transmits data to the processor for processing.
Optionally, the transmission unit further includes an interface circuit, a storage circuit, a clock circuit, a motion detection circuit, an attitude detection circuit, and a temperature sensing circuit, and the interface circuit, the storage circuit, the clock circuit, the motion detection circuit, the attitude detection circuit, and the temperature sensing circuit are respectively connected to the processor; the interface circuit is connected with the storage circuit. The storage circuit can store the data collected by the processor, and the interface circuit can be connected with other equipment so that the other equipment can acquire the stored data in the storage circuit. The clock circuit can carry out clock synchronization to the processor so as to mark the time of the collected and stored data, the motion detection circuit and the gesture detection circuit can monitor the motion, the stillness, the gesture, the speed and the acceleration of the pipe cleaner, and the temperature sensing circuit can monitor the temperature inside the pipe cleaner. Through the arrangement of the circuit, the processor can acquire the working state information of the pipe cleaner while acquiring the pipeline information.
Optionally, the pressure-bearing bin further comprises a first sealing ring, a second sealing ring and an auxiliary fixing ring, the first sealing ring is arranged between the side wall of the pressure-bearing bin and the side wall of the electronic bin, and the first sealing ring is located at the unsealed end of the pressure-bearing bin; the second sealing ring is arranged between the electronic bin and the mounting flange; the auxiliary fixing ring is positioned on the inner wall of the closed end of the pressure-bearing bin, and the auxiliary fixing ring is arranged between the side wall of the electronic bin and the pressure-bearing bin. The first sealing ring and the second sealing ring can prevent fluid in the pipeline from entering a gap between the pressure-bearing bin and the electronic bin, and the auxiliary fixing ring can better fix the electronic bin arranged in the pressure-bearing bin.
Optionally, the fluid control assembly further comprises a valve element, a spring, a valve seat and an electromagnetic coil, wherein: the valve seat is arranged between the drainage tube and the drainage tube, and is a hollow cylindrical barrel which is made of magnetic materials and is closed at one end; the unclosed end of the valve seat is connected with the drainage pipe, and the closed end of the valve seat is connected with the pressure-bearing bin; the valve core is arranged in the valve seat; the valve core is a hollow cylindrical cylinder made of magnetic materials, and one end of the valve core is closed; the outer wall of the closed end of the valve core is attached to the surface of the drainage pipe; the spring is arranged in the valve core; the electromagnetic coil is sleeved on the outer circumferential surface of the valve seat and electrically connected with the electronic assembly, and the electromagnetic coil is used for forming an electromagnet with the valve seat when being electrified so as to enable the valve core to compress the spring. The structure composed of the valve core, the spring, the valve seat and the electromagnetic coil can control the communication and the partition of the drainage tube and the drainage tube, so that the pressure of a medium in the pipeline is controlled, and a better accumulated material removing effect is obtained when the drainage tube is subjected to drainage.
Optionally, the fluid control assembly further comprises a plurality of spray holes, and the spray shapes of the plurality of spray holes comprise one or more of liquid column shape, fan shape and solid cone shape; the nozzle is the hemisphere nozzle, the nozzle is connected the discharge tube, and is a plurality of the even setting of blowout hole is in on the nozzle. A plurality of spouting holes of different shapes on the nozzle can deal with different accumulations scenes in the pipeline, and the rotation of nozzle can make when arranging the drainage pipe and carrying out the earial drainage to the pipeline more comprehensive clearance simultaneously.
Advantageous effects
According to the technical scheme, the flexible pipe cleaner with the diameter measuring function comprises a flexible shell, an electronic cabin and a fluid control assembly, wherein a cavity is coaxially arranged in the flexible shell to contain the electronic cabin and the fluid control assembly; an electronic assembly is arranged in the electronic bin, the electronic assembly comprises a magnetizer, an insulating framework, an exciting coil, a first detection coil and a second detection coil, and the magnetizer and the exciting coil are matched to emit a magnetic field and are matched with the first detection coil and the second detection coil to receive so as to obtain the data of the tube wall; the fluid control assembly is provided with a drainage tube, a drainage tube and a nozzle, so that the aim of cleaning accumulated materials in the pipeline through fluid media in the pipeline is fulfilled. The pipeline cleaner cleans the pipeline through the flexible shell and the fluid control assembly, and measures the data such as the inner diameter of the pipeline through the electronic bin and the electronic assembly, so that the pipeline cleaning and the inner diameter detection process are combined, and the efficiency of detection in the pipeline is improved.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structure of a flexible pipe pig with a diameter measuring function in an embodiment of the application;
FIG. 2 isbase:Sub>A view A-A of the flexible pipe pig withbase:Sub>A diameter measuring function in FIG. 1;
FIG. 3 is a diagram of a transmission unit and a processor according to an embodiment of the present application;
fig. 4 is an overall schematic diagram of a flexible pipe pig with a diameter measuring function in the embodiment of the application.
Illustration of the drawings: 1-a flexible housing; 2, an electronic bin; 3-a fluid control assembly; 4-an electronic component; 5-a pressure bearing bin; 6-a pressure sensor; 21-a connector; 31-a drainage tube; 32-a drain pipe; 33-a nozzle; 34-an orifice; 35-a valve core; 36-a spring; 37-valve seat; 38-a solenoid coil; 41-a power supply module; 42-a magnetizer; 43-an insulating skeleton; 44-a circuit board; 45-an excitation coil; 46-a first detection coil; 47-a second detection coil; 50-installing a flange; 51-signal lines; 52-plug-in unit; 53-first sealing ring; 54-a second seal ring; 55-auxiliary fixing ring; 61-a first pressure sensor; 62-a second pressure sensor; 100-a transmission unit; 101-a power amplification circuit; 102-a signal acquisition circuit; 110-a processor; 111-interface circuitry; 112-a storage circuit; 113-a clock circuit; 114-motion detection circuitry; 115-attitude detection circuitry; 116-temperature sensing circuit.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of apparatus and methods consistent with certain aspects of the application, as recited in the claims.
Referring to fig. 1, a schematic structural diagram of a flexible pipe pig with a diameter measuring function in an embodiment of the present application is shown. As shown in fig. 1 and 4, an embodiment of the present invention provides a flexible pipe cleaner with a diameter measurement function, including a flexible casing 1, an electronic cabin 2, and a fluid control assembly 3, where the flexible casing 1 is a cylindrical casing, one end of the flexible casing 1 is provided with a truncated cone-shaped protrusion, and the other end is provided with a cylindrical cavity coaxial with the flexible casing 1, and a length of the cavity is smaller than an axial length of the flexible casing 1. It should be noted that, since the pig needs to be placed in the pipeline to operate, the pig has a front end and a rear end, the front end is the advancing direction of the pig, and the rear end is the direction of applying the driving medium to the pig, and the front end and the rear end of the flexible casing 1 and other components are the same as those explained above.
Specifically, the front end of the flexible shell 1 is provided with a circular truncated cone-shaped protrusion, the rear end of the flexible shell 1 is provided with a cavity coaxial with the flexible shell 1, and the cavity is used for placing the electronic bin 2, so in some embodiments, the size of the cavity is the same as that of the electronic bin 2, that is, the length and the cross-sectional diameter of the cavity are equal to those of the electronic bin 2. The flexible casing 1 may be made of a polyurethane material, or may be made of other flexible materials that can be greatly deformed and can maintain the shape, such as phenolic foam, polyolefin foam, etc., and the specific material is not limited in this application.
In some embodiments of the present application, corner portions of the flexible casing 1, for example, the connecting positions of the front end and the circular truncated cone-shaped protrusions, may be set to be in a rounded form, so as to reduce scraping between the corners and accumulated materials and/or deformation points of the pipeline, and improve the passing performance of the pipeline pig.
The electronic bin 2 is a cylindrical bin body, the electronic bin 2 is arranged in a cavity of the flexible shell 1, and an electronic component 4 is arranged in the electronic bin 2. And the electronic component 4 disposed in the electronic bin 2 includes a magnetizer 42, an insulating skeleton 43, an excitation coil 45, a first detection coil 46, and a second detection coil 47. Because exciting coil 45 produces magnetic field in order to detect the pipeline at the operation in-process, for avoiding the propagation that electronic bin 2 influences magnetic field, non-magnetic material, such as ya keli, pottery etc. need be selected for use to electronic bin 2, the restriction is not done in this application to the concrete material of electronic bin 2.
The magnetizer 42 is in a cylindrical structure, the excitation coil 45 is wound on the magnetizer 42, the insulating framework 43 covers the excitation coil 45, the first detection coil 46 and the second detection coil 47 are respectively arranged at two ends of the insulating framework 43, and the first detection coil 46 and the second detection coil 47 are connected in series.
Specifically, because the magnetizer 42 needs to have high magnetic flux rate, the magnetizer needs to be made of magnetic materials, and can be made of die-pressed manganese-zinc ferrite materials, and the thickness of the cylinder wall can be exemplarily set to be 2mm. In some embodiments, the number of winding turns of the excitation coil 45 needs to be accurately controlled when winding, the excitation coil 45 may be an enameled wire with a diameter of 1mm, the winding thickness is 6mm, and the number of turns is 1000 turns, so as to realize initial setting of the current and the intensity of the generated signal.
Insulating skeleton 43 cover is established excitation coil 45's the outside, and insulating skeleton 43 is made by insulating material that has certain intensity, for example materials such as nylon, ya keli, does not restrict the preparation material of insulating skeleton 43 in this application. The shape of the inner wall of the insulating framework 43 needs to be matched with the exciting coil 45, the insulating framework 43 may be a cylindrical tubular structure, and may also be other cylindrical structures with a cylindrical cavity, such as a hexagonal prism, etc., and the insulating framework 43 with a cylindrical tubular structure is selected in some embodiments of the present application. Specifically, in the sleeving process of the insulating frame 43, an epoxy sealant needs to be filled between the insulating frame 43 and the exciting coil 45 to prevent the exciting coil 45 from vibrating during the operation process.
In some embodiments, the front end of the first detection coil 46 is flush with the front end of the excitation coil 45, the rear end of the second detection coil 47 is flush with the rear end of the excitation coil 45, and a certain axial distance exists between the first detection coil 46 and the second detection coil 47. The first detection coil 46 and the second detection coil 47 may be made of the same material as the excitation coil 45, and are formed by winding enameled wires, specifically, the enameled wires may be polyurethane oxygen-free copper enameled wires.
The first detection coil 46 and the second detection coil 47 in the electronic assembly 4 are two coils with the same electrical parameter, the first detection coil 46 and the second detection coil 47 are connected in series, specifically, the first detection coil 46 and the second detection coil 47 are connected in series in an opposite direction, that is, the ends of the first detection coil 46 and the second detection coil 47 with the same name are connected, and on this basis, the electromotive force in the circuit formed by the series connection is the difference between the first detection coil 46 and the second detection coil 47. Therefore, the magnetizer 42, the exciting coil 45, the first detection coil 46 and the second detection coil 47 form a differential transformer structure, the electromotive force generated by the circuit formed by connecting the first detection coil 46 and the second detection coil 47 in series in the stable magnetic field and/or the stable electric field generated by the exciting coil 45 is zero, once the stable magnetic field and/or the stable electric field is influenced by the deformation of the pipeline, the circuit formed by connecting the first detection coil 46 and the second detection coil 47 in series generates a non-zero electromotive force, and the non-zero electromotive force is detected to obtain the deformation point of the pipeline.
And a fluid control assembly 3 is disposed between the flexible housing 1 and the electronics cartridge 2, the fluid control assembly 3 including a plurality of draft tubes 31, a drain tube 32, and a nozzle 33. The drainage tubes 31 are hollow cylindrical conduits, the plurality of drainage tubes 31 are uniformly distributed between the flexible shell 1 and the electronic bin 2 along the circumferential direction of the cross section of the flexible shell 1, one end of the drainage tube 32 is connected with the drainage tube 31, and the other end is connected with the nozzle 33. It should be noted that, in some embodiments of the present application, only one drainage tube 32 is provided, and the plurality of drainage tubes 31 converge at the front end to be connected to the rear end of the drainage tube 32.
Specifically, the draft tube 31 may be made of a non-metallic plastic material, such as atactic polypropylene, polyethylene, etc., and may be formed into a desired shape by thermoforming. The drainage tube 32 and the nozzle 33 may be made of a metal material, such as stainless steel, aluminum alloy, etc., and the specific materials of the drainage tube 31, the drainage tube 32 and the nozzle 33 are not limited in this application.
In some embodiments of the application, because the inner diameters of the pipelines to be detected are different, and the pipelines are easy to damage in the pipe cleaning process, the flexible shell 1 is replaceable equipment, and meanwhile, in order to prolong the service life and avoid damage in the detection process, a coating of 1-2mm can be laid on the surface of the flexible shell 1 to relieve abrasion.
As shown in fig. 1, in order to ensure that the electronic cabin 2 and the electronic components 4 therein are not eroded by the medium in the pipeline, the pipe cleaner further includes a pressure-bearing cabin 5, the pressure-bearing cabin 5 is a cylindrical cylinder with one closed end, and specifically, the front end of the pressure-bearing cabin 5 is a closed end. Simultaneously, the pressure-bearing bin 5 is arranged in the cavity of the flexible shell 1, the pressure-bearing bin 5 is sleeved outside the electronic bin 2, and in the embodiment, the size of the cylindrical cavity of the flexible shell 1 needs to accord with the size of the pressure-bearing bin 5.
The pressure-bearing bin 5 can be made of reinforced polyether-ether-ketone material doped with 30% of glass fiber or carbon fiber, and the bin body thickness of the pressure-bearing bin 5 can be set to be 3mm in the embodiment. It should be noted that the pressure-bearing bin 5 is disposed in the cavity of the flexible casing 1 by the friction force between the pressure-bearing bin and the flexible casing 1, and in some embodiments, the outer surface of the pressure-bearing bin 5 may be subjected to sand blasting to increase the friction force with the flexible casing 1, so that the pressure-bearing bin 5 is not easily removed from the flexible casing 1.
The unclosed end of the pressure-bearing bin 5, namely the rear end of the pressure-bearing bin 5, is provided with a mounting flange 50, and the electronic bin 2 is sleeved in the pressure-bearing bin 5 through the mounting flange 50. It should be noted that, for better fixing, in some embodiments, a second mounting flange is disposed at the rear end of the electronic cabin 2, and a plurality of through holes are uniformly formed in the mounting flange 50 and the second mounting flange, so that the electronic cabin 2 and the pressure-bearing cabin 5 can be conveniently fixed by fixing bolts. Bolts, gaskets and the like used in the fixing process are all made of nonmagnetic metal so as to reduce the interference on the detection coil.
For the deformation information of auxiliary electronic component 4 acquisition pipeline, in the partial embodiment of this application, the dredging pipe ware still includes pressure sensor 6, and it is right to detect medium in the pipeline because of the produced pressure variation of the deformation of pressure sensor 6 needs perception flexible housing 1 the pressure of dredging pipe ware, pressure sensor 6 sets up between flexible housing 1 and pressure-bearing storehouse 5. Since the pig has a certain length, the problem of data loss may exist when the pressure sensor 6 is arranged at only one position, and the like, and therefore, the pressure sensor 6 includes a first pressure sensor 61 and a second pressure sensor 62, the first pressure sensor 61 is arranged at the side of the drainage pipe 32, and the second pressure sensor 62 is arranged at the side of the end of the drainage pipe 31 far away from the drainage pipe 32.
It should be noted that, in some embodiments, the first pressure sensor 61 and the second pressure sensor 62 may be disposed in plural, while the plural first pressure sensors 61 may be uniformly disposed at the front end of the flexible casing 1, and the plural second pressure sensors 62 may be uniformly disposed at the rear end of the flexible casing 1, so as to detect pressure value information of the front end and the rear end of the cleaning pig.
In order to transmit the data collected by the pressure sensor 6 to the electronic cabin 2, in this embodiment, the pressure-bearing cabin 5 further includes a signal line 51 and a plug 52, the electronic cabin 2 includes a connector 21, the plug 52 is disposed at the closed end of the pressure-bearing cabin 5, one end of the plug 52 is connected to the connector 21 through the signal line 51, and the first pressure sensor 61 and the second pressure sensor 62 are connected to the plug 52 through the signal line 51. Note that, in the present embodiment, the electronic component 4 also needs to be connected to the connector 21 in the electronic magazine 2. With the above arrangement, the pressure sensor 6 transmits the detected pressure data to the electronic component 4 through the signal line 51.
In order to acquire pressure and deformation data in the pipe and process the acquired data, as shown in fig. 2, in some embodiments of the present application, the electronic assembly 4 further includes a power module 41 and a circuit board 44, the power module 41 is electrically connected to the excitation coil 45, the connector 21, and the circuit board 44 is connected to the connector 21, the first detection coil 46, and the second detection coil 47. The power module 41 mainly supplies power to the devices requiring power to operate, and the circuit board 44 is used for acquiring pressure and deformation data in the pipeline and processing the acquired data. The power module 41 is disposed inside the magnetizer 42.
Specifically, the power module 41 includes a lithium battery and a voltage regulator circuit, and the voltage regulator circuit can increase or decrease the voltage output from the lithium battery to a fixed voltage value and then provide a stable voltage output for the device. In some embodiments, the voltage regulator circuit includes both the voltage boost circuit and the voltage buck circuit, the voltage boost circuit and the voltage buck circuit are relatively independent, and the outputs of the voltage boost circuit and the voltage buck circuit do not affect each other. The circuit board 44 may be made of a flexible polyurethane board, and in this embodiment, the circuit board 44 may also be surrounded by a cylindrical shape and further sleeved outside the insulating frame 43.
In order to realize the functions of acquiring data and processing data on the circuit board 44, a transmission unit 100 and a processor 110 need to be disposed on the circuit board 44, and the transmission unit 100 is connected with the processor 110. The processor 110 can receive signals detected by the first pressure sensor 61, the second pressure sensor 62, the first detection coil 46 and the second detection coil 47 through the transmission unit 100, thereby enabling the circuit board 44 to collect and process pressure data and deformation data in the pipe.
While data is collected, the pipe cleaner is required to position the deformation part of the pipeline, and the pipe cleaner is required to generate a positioning signal and transmit the positioning signal to a ground receiving device. Therefore, in some embodiments, the transmission unit 100 includes a power amplification circuit 101 and a signal acquisition circuit 102. In order to control the exciting coil 45 to generate a positioning signal, the processor 110 outputs a waveform voltage signal to the power amplifying circuit 101, and one end of the power amplifying circuit 101 is connected with the processor 110, and the other end is connected with the exciting coil 45, so that the waveform voltage signal output by the processor 110 is amplified and output to the exciting coil 45, and the exciting coil 45 sends out the positioning signal to be acquired by the ground receiving equipment.
In the present embodiment, the excitation coil 45 can generate both the positioning signal and the magnetic field and/or the electric field that can be detected by the first detection coil 46 and the second detection coil 47, and the positioning signal emitting function and the detection signal emitting function are integrated, so that the internal space of the electronic cabin 2 is saved. On this basis, the capacity of the power module 41 can be increased by a proper amount to make the endurance of the pig longer; or by reducing the length or section diameter of the electronic cabin 2 and thereby reducing the size of the pig, the pig can be suitable for use in pipelines with smaller pipe diameters.
The signal acquisition circuit 102 is used for acquiring data acquired by the pressure sensor 6, the first detection coil 46 and the second detection coil 47, and in this embodiment, one end of the signal acquisition circuit 102 is connected to the processor 110, and the other end is connected to the connector 21, the first detection coil 46 and the second detection coil 47.
Therefore, in the present embodiment, the processor 110 is configured to control the excitation coil 45 to emit a positioning signal through the power amplifying circuit 101, and to collect signals detected by the first pressure sensor 61, the second pressure sensor 62, the first detection coil 46 and the second detection coil 47 through the signal collecting circuit 102.
As shown in fig. 3, to enable the processor 110 to store the collected pipeline data, as well as to detect status data of the pig itself, the transmission unit 100 further comprises an interface circuit 111, a storage circuit 112, a clock circuit 113, a motion detection circuit 114, a posture detection circuit 115 and a temperature sensing circuit 116.
Specifically, the interface circuit 111, the memory circuit 112, the clock circuit 113, the motion detection circuit 114, the posture detection circuit 115, and the temperature sensing circuit 116 need to be connected to the processor 110, respectively. The interface circuit 111 can be connected to an external device through an interface, and in this embodiment, since the interface circuit 111 is connected to the storage circuit 112, the external device can directly obtain data information in the storage circuit 112 through the connection interface circuit 111. The external device can be a computer, a server or other processing equipment with data processing analysis and visualization.
The clock circuit 113 is used to save the time information of the device operation and provide precise time stamp for data recording. In some embodiments, to ensure that the time recording is not interrupted, the clock circuit 113 is further provided with a backup power supply to keep the clock circuit 113 capable of continuously timing when the power module 41 is disconnected or the voltage is low.
The motion detection circuit 114 is configured to detect a motion and/or a static state of the pig, the motion detection circuit 114 can acquire an operating speed of the pig through a sensor, when the detected operating speed is zero, the pig is in the static state, and when the detected operating speed is not zero, the pig is in a motion state. In some embodiments, the motion detection circuit 114 may further obtain the displacement distance of the pig, and the processor 110 and the clock circuit 113 cooperate to obtain the displacement distance within a fixed time period, which may be set by itself, where the pig is in a motion state when the displacement distance is not zero, and is in a static state when the displacement distance is zero.
And the attitude detection circuit 115 is used for detecting acceleration, rotation acceleration and attitude data of the pipe cleaner, so that the data can be extracted to calculate the position of a deformation point. The motion detection circuit 114 may be able to determine whether the pig is in a quiescent state, in which the motion detection circuit 114 may send a signal to the processor 110 to put the device to sleep, saving power in the power module 41. Temperature sensing circuit 116 can be used to detect the temperature within the pig. After all the above circuits acquire data, the data are transmitted back to the processor 110, and the processor 110 integrates all the data by acquiring the time stamp and stores the data in the storage circuit 112.
It should be noted that the interface of the interface circuit 111 is a USB interface, and specifically, to implement the USB interface, the interface circuit 111 is provided with a USB to serial port chip CH340E, a high-speed USB switch chip RS2227, and a multi-channel high-speed analog switch TS3a27518. The memory circuit 112 may be formed of an SD card or a TF card, and stores various data collected by the processor 110. The data includes pressure data, caliper data, excitation data, time data, acceleration data, angular acceleration data, attitude data, temperature data, and the like.
In order to prevent the electronic cabin 2 and the pressurized cabin 5 from being eroded by the medium in the pipeline, as shown in fig. 1, in some embodiments of the present application, the pressurized cabin 5 further includes a first sealing ring 53, a second sealing ring 54, and an auxiliary fixing ring 55. The first sealing ring 53 is arranged between the side wall of the pressure-bearing bin 5 and the side wall of the electronic bin 2, the first sealing ring 53 is positioned at the unsealed end of the pressure-bearing bin 5, and the second sealing ring 54 is arranged between the electronic bin 2 and the mounting flange 50. The first sealing ring 53 and the second sealing ring 54 can be nitrile type oil-resistant high-pressure sealing O-shaped rings, and can be better suitable for oil, water, gas and other medium types, and the medium in the pipeline is prevented from corroding the electronic cabin 2 and the electronic component 4 in the electronic cabin 2.
The auxiliary fixing ring 55 is used for assisting the electronic bin 2 to be fixed in the pressure-bearing bin 5, and the auxiliary fixing ring 55 is located on the inner wall of the closed end of the pressure-bearing bin 5, namely at the front end of the pressure-bearing bin 5. In order to achieve the purpose of auxiliary fixing, the auxiliary fixing ring 55 is arranged between the side wall of the electronic cabin 2 and the pressure-bearing cabin 5. The auxiliary fixing ring 55 can be made of rubber or other materials with certain elasticity and surface friction force, the inner diameter of the auxiliary fixing ring 55 is slightly smaller than the diameter of the section of the electronic bin 2, and the electronic bin 2 is fixed inside the pressure bearing bin 5 through the elastic action and the friction force of the auxiliary fixing ring 55.
During the pigging operation, when the pigging operation is carried out by using the medium in the pipeline for assistance, the drainage is started by using a fixed pressure difference, and even the drainage is not controlled. In some embodiments of the present application, to control the leakage of fluid from the conduit, the fluid control assembly 3 further includes a valve element 35, a spring 36, a valve seat 37, and a solenoid 38. The valve seat 37 is disposed between the drainage tubes 31 and the drainage tube 32, because the number of the drainage tubes 31 is plural, the valve seat 37 is disposed at a point where the plurality of drainage tubes 31 are connected to the drainage tube 32 after converging, and meanwhile, the valve seat 37 is a hollow cylindrical tube made of a magnetic material and having a closed end, specifically, the valve seat 37 may be made of a ferromagnetic metal, and the rear end of the valve seat 37 is a closed end. The front end of the valve seat 37 is connected with the drainage pipe 32, the rear end is connected with the pressure-bearing bin 5, and the inner wall of the valve seat 37 can be plated with nickel or coated with an anti-corrosion coating to prevent medium in the drainage pipe 31 or the drainage pipe 32 from corroding the valve seat 37.
The valve core 35 is disposed in the valve seat 37, the valve core 35 is also a hollow cylinder made of magnetic material, one end of the valve core 35 is closed, and the closed end of the valve core 35 is the front end. Specifically, the valve core 35 may also be made of ferromagnetic metal, and both the valve core 35 and the valve seat 37 may be made of other magnetic materials, and the use of ferromagnetic metal is only an example in the embodiment of the present application, and the specific material is not limited in the present application. The valve core 35 is sleeved with the valve seat 37 to form a sleeve with a cavity, and the spring 36 is arranged in the valve core 35, namely the spring 36 is arranged in the sleeve formed by the valve core 35 and the valve seat 37. It should be noted that the spring 36 is a compression spring, and the outer surface of the spring 36 is also subjected to rust-proof electroplating, for example, nickel plating followed by plastic protection to avoid corrosion of the medium, and if the spring 36 is iron or steel, it may be subjected to rust-proof treatment by baking blue.
The closed end of the valve core 35, that is, the outer wall of the front end of the valve core 35 is attached to the surface of the drainage pipe 32, so as to prevent the medium in the pipe from being discharged to the drainage pipe 32 through the drainage pipe 31. In some embodiments, rubber may be disposed at the front end of the valve core 35 to wrap the front end of the valve core 35, so that the valve core 35 has a better sealing effect on the drainage pipe 32, the outflow of the medium is reduced, and the medium pressure at the rear end of the pig is effectively raised. The rear end of the spool 35 may also be nickel plated or coated with a corrosion resistant coating to prevent damage from corrosion of the media.
The electromagnetic coil 38 is sleeved on the outer circumferential surface of the valve seat 37, the electromagnetic coil 38 is electrically connected with the electronic component 4, and the electromagnetic coil 38 and the valve seat 37 form an electromagnet when being electrified, so that the valve core 35 compresses the spring 36. After the valve core 35 compresses the spring 36, the drainage tube 31 is communicated with the drainage tube 32, so that the medium can flow into the nozzle 33 through the drainage tube 32 to impact the accumulated materials in the pipeline, thereby achieving the purpose of cleaning the pipeline.
It should be noted that the electromagnetic coil 38 may also be wound by an oxygen-free copper enameled wire, and after being wound and sleeved on the outer circumferential surface of the valve seat 37, the electromagnetic coil is encapsulated by resin or polyurethane potting adhesive, so as to achieve the waterproof and oilproof effects. In some embodiments, the electromagnetic coil 38 needs to be connected to the power module 41, the power module 41 amplifies the voltage of the internal lithium battery through the voltage boosting circuit to supply power to the electromagnetic coil 38, the processor 110 can control the power supply of the electromagnetic coil 38 by the power module 41, and the processor 110 controls the power supply of the electromagnetic coil 38 by detecting the pressure value information of the front end and the rear end of the cleaning pig and the current condition of the pipeline, so as to control the frequency, the flow rate and the duration of the leakage current of the fluid control assembly 3. In some embodiments, the processor 110 is further capable of storing the frequency, flow rate, and duration of the bleed flow as pipeline data in the memory circuit 112.
In some embodiments of the present application, if the pig becomes stuck in the pipe, processor 110 may control fluid control assembly 3 to bleed off to allow the pig to pass through the section of pipe.
For better cleaning effect, the fluid control assembly 3 further comprises a plurality of spray holes 34, the spray shape of the plurality of spray holes 34 comprises one or more of a liquid column shape, a fan shape and a solid cone shape, the nozzle 33 is a hemispherical nozzle, the nozzle 33 is connected with the discharge pipe 32, and the plurality of spray holes 34 are uniformly arranged on the nozzle 33.
For example, in some embodiments, the nozzle 33 is a hemispherical nozzle made of stainless steel, and the nozzle 33 can rotate along the axial direction of the drainage tube 32. The number of the spray holes 34 is 7, one of the spray holes is located in the axial direction of the drainage pipe 32, the remaining 6 spray holes are divided into two groups and distributed on two sides of the axial direction of the drainage pipe 32, and 1 spray hole 34 in each group in the form of a liquid column, a fan and a solid cone is respectively arranged.
According to the technical scheme, the flexible pipe cleaner with the diameter measuring function comprises a flexible shell 1, an electronic cabin 2 and a fluid control assembly 3, wherein a cavity is coaxially arranged in the flexible shell 1 to accommodate the electronic cabin 2 and the fluid control assembly 3; an electronic component 4 is arranged in the electronic bin 2, the electronic component 4 comprises a magnetizer 42, an insulating framework 43, an exciting coil 45, a first detection coil 46 and a second detection coil 47, and the magnetizer 42 and the exciting coil 45 are matched to emit a magnetic field and the magnetic field is matched and received by the first detection coil 46 and the second detection coil 47 so as to acquire tube wall data; the fluid control assembly 3 is provided with a drain pipe 31, a drain pipe 32 and a nozzle 33, so as to achieve the purpose of cleaning accumulated fluid medium in the pipeline. The pipeline cleaner cleans the pipeline through the flexible shell 1 and the fluid control assembly 3, and measures the data such as the inner diameter of the pipeline through the electronic bin 2 and the electronic assembly 4, so that the pipeline cleaning and the inner diameter detection process are combined, and the efficiency of detecting in the pipeline is improved.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (10)
1. A flexible pipe pig with a function of diameter measurement, comprising a flexible casing (1), an electronic cartridge (2) and a fluid control assembly (3), wherein:
the flexible shell (1) is a cylindrical shell, one end of the flexible shell (1) is provided with a circular truncated cone-shaped bulge, the other end of the flexible shell is provided with a cylindrical cavity coaxial with the flexible shell (1), and the length of the cavity is smaller than the axial length of the flexible shell (1);
the electronic bin (2) is a cylindrical bin body, and the electronic bin (2) is arranged in a cavity of the flexible shell (1); an electronic component (4) is arranged in the electronic bin (2); the electronic assembly (4) comprises a magnetizer (42), an insulating framework (43), an exciting coil (45), a first detection coil (46) and a second detection coil (47); the sensor comprises a magnetizer (42), an excitation coil (45), an insulating framework (43), a first detection coil (46) and a second detection coil (47), wherein the magnetizer (42) is of a cylindrical tube structure, the excitation coil (45) is wound on the magnetizer (42), the insulating framework (43) covers the excitation coil (45), the first detection coil (46) and the second detection coil (47) are respectively arranged at two ends of the insulating framework (43), and the first detection coil (46) and the second detection coil (47) are connected in series;
the fluid control assembly (3) is arranged between the flexible housing (1) and the electronics cartridge (2), the fluid control assembly (3) comprising a plurality of drainage tubes (31), a drainage tube (32) and a nozzle (33); the drainage tubes (31) are hollow cylindrical conduits, and the drainage tubes (31) are uniformly distributed between the flexible shell (1) and the electronic bin (2) along the circumferential direction of the section of the flexible shell (1); one end of the drainage pipe (32) is connected with the drainage pipe (31), and the other end of the drainage pipe is connected with the nozzle (33).
2. The flexible pipe pig with the diameter measuring function according to claim 1, characterized by further comprising a pressure-bearing bin (5), wherein the pressure-bearing bin (5) is a cylindrical cylinder with one closed end, the pressure-bearing bin (5) is arranged in the cavity of the flexible shell (1), and the pressure-bearing bin (5) is sleeved outside the electronic bin (2);
the unsealed one end in pressure-bearing storehouse (5) is equipped with mounting flange (50), electron storehouse (2) pass through mounting flange (50) cup joint in the pressure-bearing storehouse (5).
3. The flexible pipe pig with a caliper function according to claim 2, characterized in that it further comprises a pressure sensor (6), said pressure sensor (6) being arranged between said flexible casing (1) and said pressurized silo (5); the pressure sensor (6) comprises a first pressure sensor (61) and a second pressure sensor (62), the first pressure sensor (61) is arranged on the side of the drainage pipe (32), and the second pressure sensor (62) is arranged on the side of one end of the drainage pipe (31) far away from the drainage pipe (32);
pressure-bearing storehouse (5) still include signal line (51) and plug connector (52), electronic compartment (2) are including connector (21), plug connector (52) set up pressure-bearing storehouse (5) confined one end, the one end of plug connector (52) pass through signal line (51) with connector (21) are connected, first pressure sensor (61) and second pressure sensor (62) pass through signal line (51) with plug connector (52) are connected.
4. The flexible pipe pig with a caliper function according to claim 3, characterized in that the electronic assembly (4) further comprises a power supply module (41) and a circuit board (44), the power supply module (41) being electrically connected with the excitation coil (45), the connector (21), the circuit board (44), respectively; the circuit board (44) is connected with the connector (21), the first detection coil (46) and the second detection coil (47) respectively.
5. The flexible pipe pig with a caliper function according to claim 4, characterized in that a transmission unit (100) and a processor (110) are provided on the circuit board (44), the transmission unit (100) being connected with the processor (110); the processor (110) is configured to receive, by the transmission unit (100), signals detected by the first pressure sensor (61), the second pressure sensor (62), the first detection coil (46), and the second detection coil (47).
6. The flexible pipe pig with a caliper function according to claim 5, characterized in that the transmission unit (100) comprises a power amplification circuit (101) and a signal acquisition circuit (102), one end of the power amplification circuit (101) and one end of the signal acquisition circuit (102) being connected to the processor (110), respectively; the other end of the power amplification circuit (101) is connected with the excitation coil (45), and the other end of the signal acquisition circuit (102) is respectively connected with the connector (21), the first detection coil (46) and the second detection coil (47);
the processor (110) is configured to control the excitation coil (45) to emit a positioning signal through the power amplification circuit (101), and to acquire signals detected by the first pressure sensor (61), the second pressure sensor (62), the first detection coil (46) and the second detection coil (47) through the signal acquisition circuit (102).
7. The flexible pipe pig with a caliper function according to claim 5, characterized in that the transmission unit (100) further comprises an interface circuit (111), a storage circuit (112), a clock circuit (113), a motion detection circuit (114), a posture detection circuit (115), and a temperature sensing circuit (116), the interface circuit (111), the storage circuit (112), the clock circuit (113), the motion detection circuit (114), the posture detection circuit (115), and the temperature sensing circuit (116) being connected to the processor (110), respectively; the interface circuit (111) is connected to the memory circuit (112).
8. The flexible pipe pig with the function of diameter measurement according to claim 2, characterized in that the pressure-bearing bin (5) further comprises a first sealing ring (53), a second sealing ring (54) and an auxiliary fixing ring (55), wherein the first sealing ring (53) is arranged between the side wall of the pressure-bearing bin (5) and the side wall of the electronic bin (2), and the first sealing ring (53) is positioned at the unclosed end of the pressure-bearing bin (5); the second sealing ring (54) is arranged between the electronic cabin (2) and the mounting flange (50);
the auxiliary fixing ring (55) is positioned on the inner wall of the closed end of the pressure-bearing bin (5), and the auxiliary fixing ring (55) is arranged between the side wall of the electronic bin (2) and the pressure-bearing bin (5).
9. The flexible pipe pig with a caliper function according to claim 2, characterized in that the fluid control assembly (3) further comprises a valve core (35), a spring (36), a valve seat (37) and an electromagnetic coil (38), wherein:
the valve seat (37) is arranged between the drainage pipe (31) and the drainage pipe (32), and the valve seat (37) is a hollow cylindrical barrel which is made of magnetic materials and is closed at one end; the unclosed end of the valve seat (37) is connected with the drainage pipe (32), and the closed end is connected with the pressure-bearing bin (5); the valve core (35) is arranged in the valve seat (37);
the valve core (35) is a hollow cylindrical cylinder made of magnetic materials, and one end of the valve core (35) is closed; the outer wall of the closed end of the valve core (35) is attached to the surface of the drainage pipe (32); the spring (36) is arranged in the valve core (35);
the electromagnetic coil (38) is sleeved on the outer circumferential surface of the valve seat (37), the electromagnetic coil (38) is electrically connected with the electronic component (4), and the electromagnetic coil (38) and the valve seat (37) form an electromagnet when electrified so that the valve core (35) compresses the spring (36).
10. The flexible pipe pig with a caliper function according to claim 1, characterized in that the fluid control assembly (3) further comprises a plurality of jet holes (34), the spray shape of the plurality of jet holes (34) comprising a combination of one or more of a liquid cylinder, a fan, a solid cone;
the nozzle (33) is a hemispherical nozzle, the nozzle (33) is connected with the discharge pipe (32), and the plurality of spray holes (34) are uniformly arranged on the nozzle (33).
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| CN114632773A (en) * | 2022-05-18 | 2022-06-17 | 东北大学 | Flexible diameter-measuring pipe cleaner based on complex pipeline environment and use method thereof |
| CN115055459A (en) * | 2022-06-15 | 2022-09-16 | 国机传感科技有限公司 | Novel difunctional pipeline cleaner |
| CN114778661A (en) * | 2022-06-22 | 2022-07-22 | 国机传感科技有限公司 | Eddy current sensor carried on pipe cleaner and pipeline defect detection method |
| CN114993159A (en) * | 2022-06-22 | 2022-09-02 | 国机传感科技有限公司 | Pipeline cleaning instrument carrying diameter measuring sensor |
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