CN115046069B - Device and method for continuously conveying implanted cable through pressure pipeline - Google Patents
Device and method for continuously conveying implanted cable through pressure pipeline Download PDFInfo
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- CN115046069B CN115046069B CN202210528958.2A CN202210528958A CN115046069B CN 115046069 B CN115046069 B CN 115046069B CN 202210528958 A CN202210528958 A CN 202210528958A CN 115046069 B CN115046069 B CN 115046069B
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 123
- 229920002379 silicone rubber Polymers 0.000 claims description 19
- 239000004945 silicone rubber Substances 0.000 claims description 16
- 239000007943 implant Substances 0.000 claims description 6
- 230000002441 reversible effect Effects 0.000 claims description 5
- 238000002513 implantation Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 20
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 241001494479 Pecora Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000005311 nuclear magnetism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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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
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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
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/081—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling means at cable ends, e.g. pulling eyes or anchors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/086—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using fluid as pulling means, e.g. liquid, pressurised gas or suction means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/088—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling devices movable inside conduits
-
- 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
-
- 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
- F16L2101/50—Pulling cables or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Pipeline Systems (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention relates to a device and a method for continuously conveying an implanted cable through a pressure pipeline. The pressure pipeline to be monitored is externally connected with a pipeline with a newly added valve after the existing exhaust valve or the pressure relief valve, a sealing sleeve is welded on the side surface of the externally connected pipeline before the newly added valve and is used for implanting or withdrawing a detection cable into the pipeline, and a sealing device is used for sealing between the sealing sleeve and the cable. A cable retractor is provided at the outlet of the sealing sleeve to transport and retrieve the cable. Closing the existing exhaust or pressure relief valve, opening the newly added valve, introducing the cable into the external pipeline, closing the newly added valve, opening the existing exhaust or pressure relief valve, starting the cable tractor, and feeding the cable into the pipeline. After the test is finished, the cable is recovered by the cable tractor, the existing exhaust valve or the pressure relief valve on the pipeline is closed firstly, and then the newly added valve is closed or disassembled. The device can realize that the cable is implanted and retracted into the pipeline under pressure under the condition that the pipeline is not stopped.
Description
Technical Field
The invention relates to a device and a method for continuously conveying an implanted cable through a pressure pipeline, and belongs to the technical field of pressure pipeline risk monitoring and early warning.
Background
The cable with various sensors is arranged in the pipeline, so that the cable is an effective method for detecting diseases such as pipeline leakage and blockage and preventing pipeline explosion. The pipeline comprises the existing pressure pipeline for leading and adjusting water, supplying heat, burning gas, petroleum, chemical industry and the like. The existing intelligent ball detection technology applied to the oil-gas chemical pipeline utilizes airflow to drive and detect the intelligent ball to move in the pipeline for detection. And after the pipeline is stopped, all the medium conveyed in the pipeline is emptied, then the valve is opened to put the intelligent ball into the pipeline, and then the intelligent ball is pushed from one end of the pipeline to the other end of the pipeline through the air compressor to implement internal detection. The technology has a plurality of problems: 1. the pipeline must be shut down for detection. The pipeline stop not only seriously affects the economic benefit of enterprises, but also affects the production and living order, so pipeline enterprises generally choose to stop and check after the pipeline has problems, and the late knowledge of sheep complement are unavoidable; 2. the smart ball has limited functionality. Although more and more sensors such as cameras, magnetic flux leakage, sound, pipeline shape and the like are integrated on the intelligent ball, the detection in the intelligent ball is temporary detection, and the defects that long-term real-time distributed detection cannot be realized, fault points cannot be accurately positioned and the like exist; 3. the intelligent ball is complex to use and has great operation difficulty. For example, the valve is required to be opened or the opening is required to implant the intelligent ball into the pipeline, the large-scale air compressor is required to drive the intelligent ball, the ground instrument is required to be matched, the intelligent ball is easy to be clamped in the pipeline, and the difficulty of searching and taking out the intelligent ball after the ball is lost is high. 4. The cost performance of the detection in the intelligent ball is not high. The detection period is long, the problems can not be found in time, the detection period is short, the cost is high, and the normal pipeline transportation is influenced.
Disclosure of Invention
In order to solve the above-mentioned problems of detecting the inside of a pipeline by using a smart ball, a first aspect of the present invention provides a device for continuously implanting a cable into a pressure pipeline. A second aspect of the invention provides a method of pressure tubing for uninterrupted implantation of an implant cable.
The technical scheme of the invention is as follows:
The device for continuously conveying the implanted cable in the pressure pipeline is arranged behind an existing exhaust valve or a pressure relief valve of the pressure pipeline to be monitored; the device comprises an external pipeline, a cable tractor and a sealing device; the front end of the external pipeline is connected with the rear end of the existing exhaust valve or the pressure relief valve of the pressure pipeline to be monitored, the external pipeline is provided with a new valve, a sealing sleeve for implanting and retracting a cable is welded on the side surface of the external pipeline in front of the new valve, the inner diameter of the sealing sleeve is slightly larger than the outer diameter of the cable, and a sealing device for sealing a gap between the cable and the sealing sleeve is arranged in the sealing sleeve; the cable tractor pushes the cable into or withdraws from the pressure pipeline to be monitored through the external pipeline and the existing exhaust or pressure relief valve.
The inner diameter of the sealing sleeve is 6-13mm.
The sealing device is an elastic silicone rubber sealing ring with different temperature resistance grades, the elastic silicone rubber sealing ring is arranged in the sealing sleeve, the outer diameter size of the elastic silicone rubber sealing ring is matched with the inner diameter of the sealing sleeve, the inner diameter of the elastic silicone rubber sealing ring is matched with the outer diameter of the cable, and the elastic silicone rubber sealing ring is extruded in a mechanical mode to realize sealing.
The cable comprises a cable drum, wherein the cable is wound on the cable drum.
The cable tractor is a crawler tractor adopting a continuously variable motor with forward and reverse functions.
A method for continuously conveying an implanted cable through a pressure pipeline adopts the device for continuously conveying the implanted cable through the pressure pipeline, and the cable is implanted into the pipeline under the condition that the pipeline is decompressed and the conveying is not stopped, and the method comprises the following steps: under the condition that the existing exhaust or pressure relief valve is closed and the newly added valve is opened, the front end of the cable penetrates through the sealing device in the sealing sleeve and then enters the external pipeline to be led into the existing exhaust or pressure relief valve; and then closing the newly added valve, opening the existing exhaust valve or the existing pressure relief valve, opening the cable tractor, and driving the cable to enter the pressure pipeline to be monitored through pushing of the cable tractor and medium flow.
Under the condition that the existing exhaust valve or the pressure relief valve is closed, a new valve is opened, the front end of the cable penetrates through the sealing device in the sealing sleeve and then enters the external pipeline, after the buoyancy ball is connected to the front end of the cable, the new valve is closed, the existing exhaust valve or the pressure relief valve is opened, the cable tractor is opened, and the buoyancy ball and the cable are driven to enter the pressure pipeline to be monitored through pushing of the cable tractor and medium flow.
Positioning through a meter mark on the cable outer sheath.
The cable is wound on a cable drum, and the speed of winding and unwinding the cable of the cable drum is synchronous with the speed of the cable tractor.
The beneficial technical effects of the invention
The device is used for releasing pressure of the pipeline and implanting the cable into the pipeline without stopping the pipeline, and can implant the cable into the pipeline under the condition that the existing pressure pipeline is not stopped. The device is used for implanting a cable by connecting a section of external pipeline with a newly added valve behind the existing exhaust valve or pressure relief valve of the pressure pipeline to be monitored and welding a sealing sleeve on the side surface of the external pipeline. When the newly added valve is opened, a human hand can go deep into the external pipeline, the cable head implanted into the external pipeline through the sealing sleeve is connected with the buoyancy ball, and the sealing between the cable and the sealing sleeve is finished; and closing the newly added valve, opening the existing exhaust valve or the existing pressure relief valve, and implanting a cable into the pipeline under the condition that the pipeline is not stopped under pressure by means of a cable tractor. In summary, the invention can implant the cable for detecting in the pipeline under the condition of no stop of the pressure pipeline, avoids the economic loss caused by the fact that the traditional intelligent ball can detect in the pipeline enterprises only after the pipeline stops, and avoids the negative influence on production and life. By means of the existing exhaust valve or pressure relief valve on the pressure pipeline to be monitored, procedures are reduced, time and cost are saved, pipeline detection becomes simple and easy to implement, adverse effects of nuclear magnetism and radioactivity detection are avoided, safety and environmental protection are achieved, and the cost performance is high.
The external pipeline is connected with the existing exhaust valve or the pressure relief valve of the pressure pipeline to be monitored in a flange or welding mode, and the connection is firm.
The inner diameter of the sleeve for sealing is 6-13mm, so that the inner diameter is reduced as far as possible under the condition of allowing a conveying cable to be conveyed, the gap between the inner wall of the sleeve for sealing and the cable is reduced, and sealing and plugging are facilitated.
The sealing device can be a sealing ring, is preferably made of a corrosion-resistant, wear-resistant and high-temperature-resistant material such as silicon rubber, and can be a plurality of sealing rings according to the anti-leakage requirement. The sealing ring is matched with the sealing sleeve and the cable in size, and the sealing is realized by extruding the sealing ring in a mechanical mode. The cables can be pushed and retracted by the crawler under sealed conditions.
The cable is wound on the cable drum, the cable tractor adopts a caterpillar tractor with a continuously variable motor with forward and reverse functions, and the speed of the cable drum for winding and unwinding the cable is synchronous with the speed of the caterpillar tractor, so that the cable is prevented from being damaged due to the out-of-control speed of the tractor.
According to the method for implanting the cable in the pressure pipeline without stopping, under the condition that the existing exhaust valve or the pressure relief valve is closed and the newly added valve is opened, the front end of the cable passes through the sealing device and then enters the external pipeline, and is introduced to the existing exhaust valve or the pressure relief valve; and then closing the newly added valve, opening the existing exhaust valve or the pressure relief valve, opening the cable tractor, pushing the cable to enter the pressure pipeline to be monitored through the cable tractor and driving the cable to enter the pressure pipeline to be monitored through medium flow, and implanting the cable under the condition that the pressure of the pipeline is relieved and the transportation is not stopped. The flexibility of pipeline detection is greatly improved, and the pipeline detection device can be used for temporary detection and long-term monitoring.
When the buoyancy ball is arranged at the front end of the cable, the method comprises the steps of firstly leading the front end of the cable into the external pipeline through the sealing device under the condition that the existing exhaust or pressure relief valve is closed and the newly added valve is opened, connecting the buoyancy ball at the front end of the cable, then closing the newly added valve, opening the existing exhaust or pressure relief valve, starting the cable tractor, driving the buoyancy ball and the cable to enter the pressure pipeline to be monitored through the pushing of the tractor and the flowing of a medium, and implanting the cable under the condition that the pipeline is depressurized without stopping transportation. The invention greatly improves the flexibility of pipeline detection, and can be used for temporary detection and long-term monitoring.
Furthermore, the invention adopts the cable meter standard to accurately determine the length of the cable entering the pipeline.
In summary, the device and the method for continuously conveying the implanted cable through the pressure pipeline are suitable for the existing pressure pipeline implanted cable in the industries of water diversion, water supply, heat supply, fuel gas, petroleum, chemical industry and the like, and provide a simple, convenient, economical and efficient device and method for solving the problem that the implanted cable is continuously conveyed through the pressure pipeline.
Drawings
Fig. 1 is a schematic diagram of an apparatus for continuously feeding an implanted cable through a pressure pipe according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of an apparatus for continuously feeding an implanted cable through a pressure pipe according to embodiment 2 of the present invention.
Reference numerals: the pressure pipeline to be monitored comprises a pressure pipeline to be monitored, a 2-existing exhaust or pressure relief valve, a 3-external pipeline, a 4-flange, a 5-sealing sleeve, a 6-sealing device, a 7-newly added valve, an 8-cable disc, a 9-cable, a 10-cable tractor and an 11-buoyancy ball.
Detailed Description
The technical scheme of the application will be described in detail below with reference to fig. 1-2 and specific examples.
Example 1
As shown in fig. 1, the device for implanting the cable into the pressure pipeline is realized under the condition that the pressure of the pipeline is relieved and the cable is not required to be implanted into the pipeline. Is arranged behind an existing exhaust or pressure relief valve 2 of the pressure line 1 to be monitored. The device comprises an external pipeline 3, a cable drum 8, a cable tractor 10 and a sealing device 6. The front end of the external pipeline 3 is connected to the rear end of the existing exhaust or pressure relief valve 2 of the pressure pipeline 1 to be monitored, the external pipeline 3 is provided with a new valve 7, a sealing sleeve 5 for implanting and retracting a cable is drilled and welded on the side surface of the external pipeline in front of the new valve 7, and a sealing device 6 for sealing a gap between the cable 9 and the sealing sleeve 5 is arranged on the inner wall of the sealing sleeve 5. The external connection pipe 3 and the sealing sleeve 5 are welded and penetrated to form a passage for the transmission cable 9. The cable 9 is wound on the cable drum 8, and the cable tractor 10 positioned between the cable drum 8 and the sealing sleeve 5 at the outlet of the sealing sleeve is used for pushing or withdrawing the cable 9 on the cable drum 8 into the pressure pipeline 1 to be monitored through the external pipeline 3.
The external pipeline 3 is connected with the existing exhaust or pressure relief valve 2 of the pressure pipeline 1 to be monitored through a flange 4, and the size of the flange 4 of the external pipeline 3 is matched with the size of the flange at the rear end of the existing exhaust or pressure relief valve 2.
The diameter of the sealing sleeve 5 is slightly larger than the outer diameter of the cable 9 to allow the inner diameter to be reduced as much as possible in the case of a transmission cable 9 to reduce the gap between the inner wall of the sealing sleeve 5 and the cable 9, which is advantageous for sealing and plugging, in this embodiment the inner diameter of the sealing sleeve 5 is 12mm.
The sealing device 6 is used for preventing the pipeline medium from leaking through the gap between the sleeve 5 for sealing and the cable 9 when the cable 9 is implanted into the pressure pipeline 1 to be monitored, and improving the pressure resistance of the sealing device. The sealing device 6 is a sealing ring made of anti-corrosion, wear-resistant and high-temperature-resistant materials such as elastic silicone rubber and the like, is arranged in the sealing sleeve 5 of the cable, improves the pressure resistance of the sealing ring 1, and can adopt a plurality of sealing rings according to the anti-leakage requirement. The outer diameter of the elastic silicone rubber sealing ring is matched with the inner diameter of the sealing sleeve 5, and the inner diameter of the elastic silicone rubber sealing ring is matched with the outer diameter of the cable 9. The elastic silicon rubber sealing ring is extruded in a mechanical mode to realize sealing.
The cable tractor 10 is a caterpillar tractor, which adopts a continuously variable motor with forward and reverse functions, and the speed of the cable drum 8 for winding and unwinding the cable is synchronous with the speed of the cable tractor 10, so that the cable 9 is prevented from being damaged due to the out-of-control speed of the cable tractor 10.
In the method for continuously conveying the implanted cable through the pressure pipeline by adopting the device, under the condition that the existing exhaust or pressure relief valve 2 is closed and the newly added valve 7 is opened, the front end of the cable 9 wound on the cable disc 8 passes through the sealing device 6 in the sealing sleeve 5 and then enters the external pipeline 3, and is introduced into the existing exhaust or pressure relief valve 2; then the newly added valve 7 is closed, the existing exhaust or pressure relief valve 2 is opened, the cable tractor 10 is opened, and the cable 9 is driven to enter the pressure pipeline 1 to be monitored by pushing and medium flowing of the cable tractor 10.
The opening of the new valve 7 means that the valve handle is screwed to open the flashboard, so that the operation is performed by the hand penetrating into the external pipeline 3, as shown in fig. 1. The closing of the newly added valve 7 means that the valve handle is screwed to close the flashboard, and the external pipeline 3 is sealed. The existing exhaust or pressure relief valve 2 is opened by screwing a valve handle to open a flashboard, so that the external pipeline 3 is communicated with the pressure pipeline 1 to be monitored, as shown in fig. 2.
The newly-added valve 7 can be a gate valve or a butterfly valve, and when the pipeline is thick enough, the butterfly valve is opened and has enough space for a human hand to enter for operation.
The device can be used for temporarily detecting abnormal events such as pipeline leakage and the like, the cable 9 is recovered through the cable tractor 10 after detection, and the existing exhaust valve or the existing pressure relief valve 2 on the pressure pipeline 1 to be monitored is closed to finish the test; the pipeline abnormality can also be monitored for a long time and timely early warning is provided.
Example 2
As shown in fig. 2, a device for continuously delivering an implanted cable into a pressure pipeline is provided, wherein the device is used for releasing pressure of the pipeline and implanting the cable into the pipeline without stopping delivery, and is arranged behind an existing exhaust valve or a pressure release valve 2 of the pressure pipeline 1 to be monitored. The device comprises an external pipeline 3, a cable drum 8, a cable tractor 10 and a sealing device 6. The front end of the external pipeline 3 is connected to the rear end of the existing exhaust or pressure relief valve 2 of the pressure pipeline 1 to be monitored, the external pipeline 3 is provided with a new valve 7, the side surface of the external pipeline 3 in front of the new valve 7 is drilled and welded with a sealing sleeve 5 for implanting and retracting a cable 9, and the inner wall of the sealing sleeve 5 is provided with a sealing device 6 for sealing a gap between the cable 9 and the sealing sleeve 5. The external conduit 3 and the sealing sleeve 5 are welded and pass through each other to form a passage for the transmission cable 9. The cable 9 is wound on the cable drum 8, and the cable tractor 10 positioned between the cable drum 8 and the sealing sleeve 5 at the outlet of the sealing sleeve is used for pushing or withdrawing the cable 9 on the cable drum 8 into the external pipeline 3 and the pressure pipeline 1 to be monitored.
The external pipeline 3 is connected with the existing exhaust or pressure relief valve 2 of the pressure pipeline 1 to be monitored through welding.
The diameter of the sealing sleeve 5 is slightly larger than the outer diameter of the cable 9 to allow the inner diameter to be reduced as much as possible in the case of a transmission cable 9 to reduce the gap between the inner wall of the sealing sleeve 5 and the cable 9, which is advantageous for sealing and plugging, in this embodiment the inner diameter of the sealing sleeve 5 is 12mm.
The sealing device 6 is used for preventing the pipeline medium from leaking through the gap between the sealing sleeve 5 and the cable 9 when the cable 9 is implanted into the pressure pipeline 1 to be monitored, and improving the pressure resistance of the sealing device 6. The sealing device 6 is a sealing ring made of anti-corrosion, wear-resistant and high-temperature-resistant materials such as elastic silicone rubber and the like, is arranged in the sealing sleeve 5 of the incoming and outgoing cable 9, improves the pressure resistance of the sealing ring 1, and can adopt a plurality of sealing rings according to the anti-leakage requirement. The outer diameter of the elastic silicone rubber sealing ring is matched with the inner diameter of the sealing sleeve 5, and the inner diameter of the elastic silicone rubber sealing ring is matched with the outer diameter of the cable 9. The elastic silicon rubber sealing ring is extruded in a mechanical mode to realize sealing.
The cable tractor 10 is a caterpillar tractor, a continuously variable motor with forward and reverse functions is adopted, and the speed of the cable drum 8 for winding and unwinding the cable is consistent with the speed of the cable tractor 10, so that the cable 9 is prevented from being damaged due to the out-of-control speed of the cable tractor 10.
According to the method for continuously conveying the implanted cable through the pressure pipeline by adopting the device, under the condition that the existing exhaust or pressure relief valve 2 is closed and the newly added valve 7 is opened, the front end of the cable 9 wound on the cable disc 8 passes through the sealing device 6 in the sealing sleeve 5 and then is introduced into the external pipeline 3, the cable 9 is introduced into the existing exhaust or pressure relief valve 2, after the buoyancy ball 11 is connected with the front end of the cable 9, the newly added valve 7 is closed, the existing exhaust or pressure relief valve 2 is opened, the cable tractor 10 is started, and the buoyancy ball 11 and the cable 9 are driven to enter the pressure pipeline 1 to be monitored through pushing of the cable tractor 10 and medium flow, and the cable 9 is implanted into the pipeline.
The newly added valve 7 is opened, so that the hand can conveniently go deep into the external pipeline 3 to operate, as shown in figure 1. And closing the newly added valve 7 and sealing the external pipeline 3. The existing exhaust or pressure relief valve 2 is opened so that the external conduit 3 communicates with the pressure conduit 1 to be monitored, as shown in fig. 2.
The newly-added valve 7 can be a gate valve or a butterfly valve, and when the pipeline is thick enough, the butterfly valve is opened, so that enough space is available for human hands to enter for operation.
The length of the cable 9 into the duct can be given by a meter mark on the cable outer sheath.
When a pipe leakage or abnormal vibration/sound position is found, the cable 9 is repeatedly wound and unwound by the cable retractor 10, and the heavy area is repeatedly detected and verified.
The device can be used for temporarily detecting abnormal events such as pipeline leakage and the like, the cable 9 is recovered through the cable tractor 10 after detection is completed, the existing exhaust valve or pressure relief valve 2 on the pressure pipeline 1 to be monitored is closed firstly, and then the newly added valve 7 is closed or detached; the pipeline abnormality can also be monitored for a long time and timely early warning is provided.
The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any external connection pipeline, the thin pipeline, the size change of the sealing ring, the cable form and the replacement of the cable into the micro-pipe, the implantation of various similar cables and micro-pipes into the pipeline, etc. which are easily conceivable by those skilled in the art within the scope of the present invention should be covered in the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (6)
1. A method for continuously conveying an implanted cable through a pressure pipeline is characterized in that a device for continuously conveying the implanted cable through the pressure pipeline is adopted, and the device is arranged behind an existing exhaust valve or a pressure relief valve of the pressure pipeline to be monitored; comprises an external pipeline, a cable tractor and a sealing device; the front end of the external pipeline is connected with the rear end of the existing exhaust valve or the pressure relief valve of the pressure pipeline to be monitored, the external pipeline is provided with a new valve, a sealing sleeve for implanting and retracting a cable is welded on the side surface of the external pipeline in front of the new valve, the inner diameter of the sealing sleeve is slightly larger than the outer diameter of the cable, and a sealing device for sealing a gap between the cable and the sealing sleeve is arranged in the sealing sleeve; the cable tractor pushes the cable into or withdraws from the pressure pipeline to be monitored through the external pipeline and the existing exhaust or pressure relief valve, the sealing device is an elastic silicone rubber sealing ring with different temperature resistance grades, the elastic silicone rubber sealing ring is arranged in the sleeve for sealing, the outer diameter size of the elastic silicone rubber sealing ring is matched with the inner diameter of the sleeve for sealing, the inner diameter of the elastic silicone rubber sealing ring is matched with the outer diameter of the cable, the elastic silicone rubber sealing ring is extruded mechanically to realize sealing,
The cable is implanted into the pipeline under the condition that the pipeline is depressurized and the pipeline does not need to be stopped, and the method comprises the following steps: under the condition that the existing exhaust or pressure relief valve is closed and the newly added valve is opened, the front end of the cable penetrates through the sealing device in the sealing sleeve and then enters the external pipeline to be led into the existing exhaust or pressure relief valve; and then closing the newly-added valve, opening the existing exhaust valve or the pressure relief valve, opening the cable tractor, pushing and medium flowing through the cable tractor to drive the cable to enter the pressure pipeline to be monitored, opening the newly-added valve under the condition that the existing exhaust valve or the pressure relief valve is closed, enabling the front end of the cable to pass through the sealing device in the sealing sleeve and then enter the external pipeline, closing the newly-added valve after the front end of the cable is connected with the buoyancy ball, opening the existing exhaust valve or the pressure relief valve, opening the cable tractor, and pushing and medium flowing through the cable tractor to drive the buoyancy ball and the cable to enter the pressure pipeline to be monitored.
2. A method of non-stop implantation of an implant cable in a pressurized conduit according to claim 1, wherein said sealing sleeve has an inner diameter of 6-13mm.
3. A method of non-stop implantation of an implant cable in a pressure conduit according to claim 1, comprising a cable drum having said cable wound thereon.
4. The method for continuously conveying an implanted cable through a pressure pipeline according to claim 1, wherein the cable tractor is a crawler tractor adopting a continuously variable motor with forward and reverse functions.
5. The method of claim 1, wherein the positioning is by means of a meter on the cable outer sheath.
6. The method of claim 1, wherein the cable is wound on a cable drum, the speed of the cable drum to pay-off and pay-off cable and the speed of the cable tractor are synchronized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210528958.2A CN115046069B (en) | 2022-05-16 | 2022-05-16 | Device and method for continuously conveying implanted cable through pressure pipeline |
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| CN202210528958.2A CN115046069B (en) | 2022-05-16 | 2022-05-16 | Device and method for continuously conveying implanted cable through pressure pipeline |
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| CN115046069B true CN115046069B (en) | 2024-06-25 |
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| CN117810866B (en) * | 2024-03-01 | 2024-05-14 | 百世通(浙江)安全科技有限公司 | Method for continuously conveying implanted cable through pressure pipeline |
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| US4856937A (en) * | 1987-06-04 | 1989-08-15 | British Pipeline Agency Limited And Stc Plc | Pipeline systems |
| CN1482992A (en) * | 2000-10-10 | 2004-03-17 | Methods and systems for installing cable and conduit in pipelines | |
| CN205829119U (en) * | 2016-07-11 | 2016-12-21 | 北京中拓威远科技有限公司 | A kind of wellhead casing pipe valve cable traversing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203260953U (en) * | 2013-05-28 | 2013-10-30 | 四川宏华石油设备有限公司 | Cable injecting and recovering system |
| CN103247975B (en) * | 2013-05-28 | 2016-06-01 | 四川宏华石油设备有限公司 | Cable injects recovery system |
| CN206806875U (en) * | 2017-05-19 | 2017-12-26 | 西安交通大学 | A kind of pneumatic means for Penetrating wire for pipe |
| CN111606144A (en) * | 2020-06-05 | 2020-09-01 | 上海隧道工程股份有限公司 | Automatic retractable device for cabled pipeline robot and method of using the same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4856937A (en) * | 1987-06-04 | 1989-08-15 | British Pipeline Agency Limited And Stc Plc | Pipeline systems |
| CN1482992A (en) * | 2000-10-10 | 2004-03-17 | Methods and systems for installing cable and conduit in pipelines | |
| CN205829119U (en) * | 2016-07-11 | 2016-12-21 | 北京中拓威远科技有限公司 | A kind of wellhead casing pipe valve cable traversing device |
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| CN115046069A (en) | 2022-09-13 |
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