CN201306577Y

CN201306577Y - Intelligent tube occlusion device

Info

Publication number: CN201306577Y
Application number: CNU2008201228833U
Authority: CN
Inventors: 张仕民; 樊文斌; 赵宏林; 丁庆新
Original assignee: China University of Petroleum Beijing; China National Petroleum Corp
Current assignee: China University of Petroleum Beijing; China National Petroleum Corp
Priority date: 2008-10-13
Filing date: 2008-10-13
Publication date: 2009-09-09
Anticipated expiration: 2018-10-13

Abstract

The utility model relates to an intelligent tube occlusion device, which comprises a main driving cylinder, a pressure bearing head, an actuator plate, an extrusion bowl, at least two locking slide blocks, a sealing ring and a signal transceiver device. The main driving cylinder comprises a cylinder body, a piston and a piston rod which is connected with the piston; the pressure bearing head is connected with the end of the piston rod away from the piston; the actuator plate is connected with the cylinder body; the extrusion bowl is arranged between the pressure bearing head and the actuator plate in a sliding way, and is provided with an inclined sliding conical surface and an extrusion end surface; the two locking slide block are respectively connected with an auxiliary driving cylinder; either auxiliary driving cylinder is fixedly arranged on the actuator plate; the lower surface of the locking slide block is arranged on the sliding conical surface of the extrusion bowl in a sliding way; the locking slide block is used for locking in the ascending direction on the conical surface and in the radial expansion state during the sliding process; the sealing ring is arranged between the pressure bearing head and the actuator plate and realizes the sealing in the radial expansion state under the extrusion of the extrusion end surface of the extrusion bowl; and the signal transceiver device is arranged on the intelligent tube occlusion device, and is used for receiving control signals so as to drive the main driving cylinder.

Description

Intelligent plugging device in tube

Technical field

The utility model is relevant for a kind of plugging device in the pipeline maintenance operation capping tools of media such as aqueous hydrocarbon, especially about a kind of remote control can be in high-voltage tube the intelligent plugging device in tube of shutoff and de-plugging voluntarily.

Background technique

Pipeline transport is most economical, the most rational means of transportation such as petroleum gas.By the end of the year 2006, the long oil and gas pipeline total length of China has surpassed 50,000 kms, about 30,000 kms of natural gas line wherein, about 1.5 ten thousand kms of crude oil pipeline, about 0.56 ten thousand km of processed oil pipeline.China has formed a plurality of oil gas zone pipe network at present, comprising: the regional gas distributing system that Chongqing of Sichuan, North China and Yangtze River Delta Area are fairly perfect, the regional gas distributing system main body frame Central-South, that the Pearl River Delta is regional and the regional crude oil pipe network in northeast, northwest and North China; The Eleventh Five-Year Plan period, the oil and gas pipes industry of China will continue to obtain significant progress.

At present, in the pipeline that China is on active service, " military service phase " surpass 20 years account for more than 62%, 10 year near 85%; Under the effect of factors such as external force interference, burn into fault in material, faults such as pipeline inefficacy and valve can increase gradually, therefore need carry out planned maintenance to pipeline.

In the process that pipeline is safeguarded, inevitably adopt the pipe plugging technology to come the fed sheet of a media of packing pipe interior; Yet present widely used press and open holes blocking technology is to the maintenance pipeline when carrying out the shutoff operation, removes technology comparatively the complexity, influence pipeline normally time of conveying also longer.Simultaneously, the shutoff pressure of press and open holes shutoff operating type enters structural limitations that pipeline carry out shutoff so must break through plugging device from tapping far below the normal discharge pressure of pipeline, develops and can bear the more pipe interior plugging device of senior executive's internal pressure.

In present petroleum gas consumption market, the stopping transportation of length all is that the user is difficult to accept any time, and therefore the most effective minimizing pipeline shutdown time method adopts not stopping transportation pipe inner high voltage intelligence blocking technology exactly when the pipeline maintenance operation.This technology can make the energy producer and conveying company finish the pipeline project that can't finish before some.

In addition, along with the increase of China's undersea pipe-laying length and the growth of Years Of Service, the shutoff during to pipeline maintenance is also had higher requirement.Though China has grasped the development technology of submarine pipeline press and open holes shutoff operation technique and equipment, this technology and the inapplicable inner layer pipe shutoff that has the double-skin duct of additional facilities such as electrical tracing.In this case, development can enter from wiper service end, can receive the pipe inner high voltage intelligent plugging device that the pommel receives from wiper again after pipe interior carries out high pressure shutoff, de-plugging, has important practical significance for the inner layer pipe shutoff that realizes the double-skin duct shutoff.

Mere formality is offered investigation and is shown that China still is in space state for the research of intelligent plugging device in tube, and the fast development of matter Jie's pipeline industries such as aqueous hydrocarbon is badly in need of intelligent plugging device in tube and is applied to maintenance operation, particularly high pressure pipe line shutoff.

The model utility content

The technical problems to be solved in the utility model is to overcome the deficiency of existing pipeline tapping shutoff maintenance process and technology and a kind of intelligent plugging device in tube is provided, can under the situation of stopping transportation not, realize shutoff and de-plugging in the pipe by remote control, can be applicable to the shutoff of pipe inner high voltage especially, the shutoff operation is very fast simple, normal conveying there is not influence substantially, and all can provide enough latching forces for inner-walls of duct, can realize reliable shutoff the pipeline of any precision with straight weld or any obstacle such as spiral weld and distortion.

The technical problems to be solved in the utility model also is to provide a kind of intelligent plugging device in tube, can enter, arrive the shutoff pipeline section from wiper service end and under the remote control of ultralow frequency electromagnetic signal, implement the high pressure shutoff, and Remote Control Automatic de-plugging after the pipeline maintenance operation is finished, continue to move to wiper then and receive the pommel and be removed, can realize having the inner layer pipe shutoff of the double-skin duct of additional facilities such as electrical tracing.

A kind of intelligent plugging device in tube that the utility model provides is characterized in that, includes:

One main drive cylinder, the piston rod that described main drive cylinder has cylinder body, piston and is connected with piston;

One pressure bearing head is connected in the end of described piston rod away from piston;

One final controlling element dish is connected on the described cylinder body;

One extrusion bowl, being located between described pressure bearing head and the described final controlling element dish of slip, described extrusion bowl has tilted conical slide and extruding end face;

At least two lock sliders, be connected to a secondary drive cylinder, each secondary drive cylinder is fixed on the described final controlling element dish, the lower surface of lock slider is engaged on the conical slide of described extrusion bowl slidably, and described lock slider is the radial dilatation state and locks when conical slide upper edge ascent direction slides;

One packing circle is located between described pressure bearing head and the described final controlling element dish, and is subjected to the extruding end face extruding of described extrusion bowl and is radial expanded state and realizes shutoff;

Signal receiving/transmission device is connected on the described intelligent plugging device in tube, receives a control signal and drives described main drive cylinder.

According to such scheme, the utility model is significant with respect to the effect of existing structure:

One, the utility model starts remote signal by sending on ground, start main drive cylinder, just can drive pressure bearing head and final controlling element dish generation relative movement, lock slider is upwards slided and radial dilatation along the conical slide of extrusion bowl, be locked in inner-walls of duct and realize locking; Extruding end face extruding packing circle radial expansion by extrusion bowl simultaneously realizes shutoff, when shutoff, needn't stop normal conveying, can under the situation of stopping transportation not, realize shutoff, the utility model is specially adapted to manage the inner high voltage shutoff, can manufacture various sizes, is applicable to multiple pipeline specifications, and the shutoff operation is very fast simple, and normal conveying is not had influence substantially; And each lock slider can be assisted promotion by a secondary drive cylinder respectively, each secondary drive cylinder stroke is independent, therefore each locking is slided when inner-walls of duct slip and radial dilatation, in the time of can't moving on if certain lock slider suffers from pipeline straight weld or any pipeline obstacle such as spiral weld and distortion, though this lock slider can only lock onto this obstacle place, but other lock slider can continue to slide under its secondary drive cylinder separately promotes and radial dilatation and realize further locking, whole latching force does not change, still reliable shutoff can be realized, the pipe plugging of various precision can be applicable to.

Two, intelligent plugging device in tube of the present utility model, can enter, arrive the shutoff pipeline section from wiper service end and under the electromagnetic signal remote control, implement the high pressure shutoff, and Remote Control Automatic de-plugging after the pipeline maintenance operation is finished, continue to move to wiper then and receive the pommel and be removed, can realize having the inner layer pipe shutoff of the double-skin duct of additional facilities such as electrical tracing.

Description of drawings

Fig. 1 is the schematic representation of the mode of execution 1 of intelligent plugging device in tube of the present utility model.

Fig. 2 is the stereogram of lock slider of the present utility model.

Fig. 3 is a hydraulic schematic diagram of the present utility model.

Fig. 4 is a SC sigmal control Block Diagram of the present utility model.

Fig. 5 is the schematic representation of the mode of execution 2 of intelligent plugging device in tube of the present utility model.

Embodiment

Mode of execution 1

As shown in Figure 1, 2, a kind of intelligent plugging device in tube that the utility model provides includes:

The piston rod 13 that one main drive cylinder 1, main drive cylinder 1 have cylinder body 11, piston 12 and be connected with piston 12, main drive cylinder 1 preferred oil hydraulic cylinder;

One pressure bearing head 2 is connected in the end 131 of piston rod 13 away from piston 12;

One final controlling element dish 3 is connected on the cylinder body 11;

One extrusion bowl 4, being located between pressure bearing head 2 and the final controlling element dish 3 of slip, extrusion bowl 4 has tilted conical slide 41 and extruding end face 42;

At least two lock sliders 5, preferably include eight and evenly distribution along the circumferential direction, to guarantee the latching force equilibrium, eight lock sliders 5 are connected to eight secondary drive cylinders 15, each secondary drive cylinder 15 is separately fixed on the final controlling element dish 3, the lower surface 51 of lock slider 5 is engaged on the conical slide 41 of extrusion bowl 4 slidably, and lock slider 5 can be the radial dilatation state and lock when the ascent direction shown in the conical slide 41 upper edge arrow A slides; Certainly lock slider 5 also can be three, four, five, six, seven etc. and all can, do not limit, each lock slider 5 is preferably by the Hard Alloy Steel manufacturing, working life is longer relatively, outer surface at lock slider 5 is provided with locking screw thread 53, locking screw thread 53 can thrust inner-walls of duct after radial dilatation, the equalizing main internal pressure is to the thrust of plugging device, make plugging device be fixed in the pipeline and can not move, realize locking reliably, locking screw thread 53 thrusts inner-walls of duct can make inner-walls of duct produce indentation, requires to get final product but be no more than industry standard;

One packing circle 6 is located between pressure bearing head 2 and the final controlling element dish 3, and is squeezed 42 extruding of bowl 4 extruding end face and is radial expanded state and realizes shutoff;

Signal receiving/transmission device 7 is connected on the intelligent plugging device in tube, is to be fixed on the pressure bearing head 2 shown in the figure, is used to receive a control signal and drives main drive cylinder 1.

In a preferred embodiment, this pressure bearing head 2 has interior edge face 21, exterior edge face 23 and from interior edge face 21 axially extended first portion 22, this final controlling element dish 3 has interior edge face 31, exterior edge face 33 and from interior edge face 31 axially extended second portion 32, first portion 22 and second portion 32 are corresponding and form hollow chamber 8, extrusion bowl 4 is nested with the outer circumferential face in first portion 22 and second portion 32, and cylinder body 11, piston 12 and piston rod 13 are positioned at hollow chamber 8.

In a preferred embodiment; main drive cylinder 1 is an oil hydraulic cylinder; main drive cylinder 1 is connected in a miniature main hydraulic system 14; if the inner space of hollow chamber 8 is enough big; miniature main hydraulic system 14 can be positioned at hollow chamber 8; for example can be fixed on the interior edge face 21 that is positioned at first portion 22 inside of pressure bearing head 2 or be fixed on the interior edge face 31 that is positioned at second portion 32 inside of final controlling element dish 3; miniature main hydraulic system 14 is protected; keep away and influenced by high-pressure medium; increase the service life; and miniature main hydraulic system 14 is located in the hollow chamber 8; with respect to the exterior edge face 23 that it is located at pressure bearing head 2 or for being located on the exterior edge face 33 of final controlling element dish 3, can make the volume-diminished of whole plugging device.Certainly, in the utility model,, can consider to adopt pneumatic cylinder, realize driving by the pneumatic system that comprises pneumatic pump etc. as main drive cylinder if be applied to the medium pipeline of relatively low pressure.In addition, for example the mechanical drive system of cam link etc. also can be considered to adopt, and does not limit, and all can adopt as long as can drive the drive unit of pressure bearing head and final controlling element dish generation relative displacement.

In a preferred embodiment, each secondary drive cylinder 15 includes subsidiary cylinder 151, sub-piston 152 and the sub-piston bar 153 that is connected with sub-piston 152, in second portion 32 of final controlling element dish 3, be provided with fixed axoid 34, the true dip direction of fixed axoid 34 is consistent with conical slide 41 true dip directions of extrusion bowl 4, each subsidiary cylinder 151 secure fit is on fixed axoid 34 and affixed with the interior edge face 31 of final controlling element dish 3, this interior edge face 31 is preferably the inclined-plane, fix so that each secondary drive cylinder 15 is the angle of inclination, each sub-piston bar 153 is fixed on each lock slider 5 away from an end of piston 152.The equally also preferred oil hydraulic cylinder of each secondary drive cylinder 15 is communicated to miniature main hydraulic system 14, also can be communicated to another one micro hydraulic system separately certainly.

As shown in Figure 3, this miniature main hydraulic system 14 includes control module 140, battery pack 149 (referring to Fig. 5, specifically do not illustrate among Fig. 3) and pressure dwelling loop, pressure dwelling loop comprises fuel tank 141, filter 142, stop valve 143, oil hydraulic pump 144, one-way valve 145, relief valve 146,3-position 4-way solenoid directional control valve 147 and pressure-relief valve 148, and control module 140 is used to control the action of aforementioned whole hydraulic element.Between oil hydraulic pump 144 and one-way valve 145, connect fuel tank 141 by relief valve 146, one-way valve 145 is communicated with the pressure hydraulic fluid port P of 3-position 4-way solenoid directional control valve 147, the return opening O connected tank of 3-position 4-way solenoid directional control valve 147, actuator port A, B also connect whole secondary cylinder body 15 and main drive cylinders 1 of driving, the return opening of main drive cylinder 1 is communicated with pressure-relief valve 148 backs and is communicated with fuel tank 141, thereby the one-way valve 145 of miniature thus main hydraulic system 14 forms pressure dwelling loop behind lock slider 5 locking radials, to keep the locking pressure of lock slider 5, realize locking reliably.When the needs shutoff, oil hydraulic pump 144 is worked under the drive of storage battery 149, gives main drive cylinder 1 and whole secondary drive cylinder 15 fuel feeding, makes it drive corresponding parts work.And when the needs de-plugging, in case when system communication and Control Failure, when above-mentioned final controlling element dish 3 pressure on one side reaches the setting pressure of pressure-relief valve 148, pressure-relief valve 148 on the oil hydraulic circuit is opened automatically, pressure oil by pressure-relief valve 148 unloading oil hydraulic circuits, can make chamber, the left and right sides release simultaneously of main drive cylinder 1, separate with final controlling element dish 3 by resilient compressible member 81 promotion pressure bearing heads 2 again and finish de-plugging, realize utilizing the de-plugging of system mechanics fail-safe.Certainly, miniature main hydraulic system 14 in the utility model is not limited to this pressure dwelling loop that is made of one-way valve, also can adopt the pressure dwelling loop that is made of accumulator, not limit, any can locking at lock slider 5 can keep the hydraulic system of lock pressure all can adopt later.

When shutoff, receive the actuating signal that the ground control center sends by signal receiving/transmission device 7, the control module 140 that starts miniature main hydraulic system 14 drives main drive cylinder 1 and drives pressure bearing head 2 and the 3 generation relative movement of final controlling element dish, simultaneously by each secondary drive cylinder 15 auxiliary conical slide 41 up-slip realization locking that promote each lock slider 5 along extrusion bowl 4, because each secondary drive cylinder 15 can play further impetus, each secondary drive cylinder 15 stroke is independent, each locking slides 5 when inner-walls of duct slip and radial dilatation, in the time of can't moving on if certain lock slider 5 suffers from pipeline obstacles such as pipeline straight weld or spiral weld and distortion, though this lock slider 5 can only lock onto this obstacle place, but other lock slider 5 can continue to slide under its secondary drive cylinder 15 separately promotes and radial dilatation and realize further locking, whole latching force does not change, simultaneously push packing circle 6 simultaneously and make its radial expansion realize reliable shutoff by the extruding end face 42 of extrusion bowl 4 and the interior edge face 21 of pressure bearing head 2, as seen the utility model can be applicable to the pipe plugging that any inner surface accuracy is not high, unfailing performance is very high, and when shutoff, also needn't stop normal conveying, can under the situation of stopping transportation not, realize shutoff, be applicable to the shutoff of pipe inner high voltage, and the shutoff operation is very fast simple, normal conveying is not had influence substantially, can realize having the inner layer pipe shutoff of the double-skin duct of additional facilities such as electrical tracing yet.

In the present embodiment, be when main drive cylinder 1 drives the state that pressure bearing head 2 and final controlling element dish 3 move in opposite directions, can make conical slide 41 risings of lock slider 5 along extrusion bowl 4.In the middle of this structure, packing circle 6 is folded between the extruding end face 42 of the interior edge face 21 of pressure bearing head 2 and extrusion bowl 4.During shutoff, the main cylinder pressure 1 that drives starts, piston 12 pulling pressure bearing heads 2 move right, pressure bearing head 2 promotes packing circle 6 and moves to right, contact with the extruding end face 42 of extrusion bowl 4 and to form extruding, eight secondary oil hydraulic cylinders 15 promote eight lock sliders 5 and upwards slide and circumferential expansion along the conical slide 41 of extrusion bowl 4 simultaneously, and the locking screw thread 53 of lock slider 5 outer surfaces thrusts inner-walls of duct, play lock function, medium thrust in the equalizing main; The extruding of 42 pairs of packing circles 6 of extruding end face of above-mentioned pressure bearing head 2 and extrusion bowl 4 makes 6 radial expansions of packing circle and contacts with the inner-walls of duct high-pressure uniform, plays the effect of medium in the sealed pipe, thereby finishes the shutoff process.As shown in Figure 1, preferably be provided with equally distributed a plurality of resilient compressible member 81 between the interior edge face 21 of main drive cylinder 1 and pressure bearing head 2, each resilient compressible member 81 can further dispose guide rod 82, to guarantee its compression direction.The effect of resilient compressible member 81 is when making main drive cylinder 1 and whole secondary drive cylinder 15 discharge degree, with pressure bearing head 2 and extrusion bowl 3 pushing open dorsad, lock slider 5 is glided along conical slide 41 realize de-pluggings.According to symmetry principle, it is opposing to away from the state of action the time to consider to drive pressure bearing head 2 and final controlling element dish 3 at main drive cylinder 1, lock slider 5 is risen along the conical slide 41 of extrusion bowl 4, in the middle of this structure, need the inclination aspect of conversion conical slide 41, packing circle 6 also need be fixed between the extruding end face 42 of the interior edge face 31 of final controlling element dish 3 and extrusion bowl 4, and the also corresponding elastic stretching element that replaces with of resilient compressible member 81, when making main drive cylinder 1 and whole secondary drive cylinder 15 discharge degree, pressure bearing head 2 and extrusion bowl 3 are furthered in opposite directions, realize de-plugging so that lock slider 5 glides along conical slide 41.Certain this structure can make the volume of whole plugging device relatively large, and because the interior edge face 31 of final controlling element dish 3 has been fixed secondary drive cylinder, the packing circle is set again can makes the structure relative complex, is not preferred.

As Fig. 1, shown in 2, in preferred embodiment, the conical slide 41 of extrusion bowl 4 and the lower surface 51 of lock slider 5 are provided with the guide structure 9 of the concavo-convex cooperation of extending vertically, this guide structure 9 comprises the raised line 91 (all the lower surface 51 of lock sliders 5 is done as a whole) on the lower surface 51 1 that is located at conical slide 41 and whole lock sliders 5, with be located at corresponding groove 92 on another person, that is to say a plurality of raised lines or groove are set on conical slide 41, and a corresponding groove or raised line are set respectively on each lower surface of each lock slider 5, for example can on the conical slide 41 of extrusion bowl 4, raised line 91 be set, as shown in Figure 4, the lower surface 51 at each lock slider 5 is provided with groove 92; Can certainly make raised line 91 and groove 92 location swaps.Guide structure 9 not only can guarantee that lock slider 5 slides along predetermined direction, also can play the effect that lock slider 5 is connected with extrusion bowl 4.Preferably, can make the cross section of raised line 91 and groove 91 be set as swallow-tail form, for connecting lock slider 5 and extrusion bowl 4 better effects if.The raised line 91 of guide structure 9 also can directly mill on the slidingsurface 41 of extrusion bowl 4 to be made, also can be fixed on the slidingsurface 41 by the raised line 91 of fastening piece with a plurality of independent processing, can not only adopt the hardness than minor diameter so is not that very high steel are processed extrusion bowl 4, and only make raised line 91 adopt the bigger Hard Alloy Steel of hardness to make, can improve wear-resisting property, increase the service life, the cost of whole plugging device is reduced.Certainly, fully guide structure 9 can be set, just by conical slide 41 directly with the lower surface sliding contact of locking lock dog 5.

As shown in Figure 1, the interior edge face 21 of pressure bearing head 2 and the extruding end face of extrusion bowl 4 41 are the inclined-plane, and the distance that the extruding end face 42 of the inclined-plane of pressure bearing head 2 and extrusion bowl 4 points to along the axle center on the direction of far-end radially increases gradually.Like this when pressure bearing head 2 and the 6 formation clamping extruding of 4 pairs of packing circles of extrusion bowl, can apply axial pressure to the stressed end face 61 of packing circle 6 axial both sides, because two inclined-planes can produce radially outer component, make packing circle 6 easier radial expansions and form high press contacts with inner surface of pipeline, play the effect of medium in the sealed pipe, realized shutoff.And because the effect on these two inclined-planes, in case plugging device radial expansion and contact with inner surface of pipeline realizes after the shutoff, the extruding force or the medium differential pressure of packing circle 6 both sides are big more, the component that the footpath makes progress is big more, the packing circle is more outwards expanded, sealing and clamping ability will be kept or strengthen to the pressure reduction at plugging device two ends, make plugging device become the pressure reduction auto-lock function, at this moment, no longer need the battery pack 149 of miniature main hydraulic system 14 to provide and keep pressure, thereby can save the energy of battery pack.

As shown in Figure 1, in a preferred embodiment, packing circle 6 is made by medium-hard elastic material, preferred polyurethane, and the easy and living reaction of fry dried food ingredients compared to the rubber packing circle of routine, polyurethane packing circle can be applicable to all high-pressure mediums such as oil, gas, water.Preferred packing circle 6, the stressed end face 61 of its axial both sides is the inclined-plane, match with the inclined-plane of the extruding end face 42 of the inclined-plane of the interior edge face 21 of pressure bearing head 2 and extrusion bowl 4 respectively, under inclined-plane clamping squeezed state, packing circle 6 be easier to radial expansion and with the high press contacts of tube wall, play can be by the pressure reduction self-locking sealing function.Certainly, the stressed end face 61 of the interior edge face 21 of pressure bearing head 2, the extruding end face 42 of extrusion bowl 4 and packing circle 6 can not be the inclined-plane also, but normal vertical plane can only expand by the distortion of packing circle 6 and equally also can realize the pressure reduction self-locking this moment.

As shown in Figure 1, in a preferred embodiment, can a plurality of for example eight uniform supporting wheels that have spring 24 be set in the exterior edge face 23 of pressure bearing head 2 and the exterior edge face 33 of final controlling element dish 3, it is more steady, smooth and easy to make plugging device move slip in pipeline, can avoid owing to the plugging device action of gravity makes the wearing and tearing of packing circle, distortion of its underpart and the deficiency that pipeline below wall portion is caused damage.

In aforementioned whole embodiment, signal receiving/transmission device 7 places in the hollow chamber 8, can be fixed on the pressure bearing head 2 or on the final controlling element dish 3, can avoid by the high-pressure medium corrosion failure.Signal receiving/transmission device 7 can adopt the electromagnetic wave transceiver of conventional frequency range, applicable to the shutoff nonmetal pipeline.Consider that common high pressure pipe line is metallic conduit; and pipeline can be imbedded underground and seabed usually; therefore in order to guarantee that electromagnetic wave signal passes transmission path such as pipeline and not conductively-closed; as shown in Figure 4; the signal receiving/transmission device 7 preferred ultra-low frequency signal transmitterreceiver appliances that adopt; ultra-low frequency signal can penetrate any pipeline and be received, thereby makes plugging device go for the pipeline of any material of any occasion.Communication mode is looked land with the submarine pipeline intelligent plugging device and different, as shown in Figure 4, communication process schematic representation for the submarine pipeline intelligent plugging device, when carrying out shutoff, the ground control center converts the command signal that computer sends to be fit to underwater acoustic transducer electrical signal by underwater sound modulator-demodulator, (35kHz～40kHz) passes to the seabed to utilize underwater acoustic transducer that electrical signal is become acoustic signal then, receive the back in the seabed by transducer acoustic signal is become ultra-low frequency electromagnetic wave ELF (10Hz～30Hz), launch by the ELF antenna then, ELF signal penetration tube wall emission is gone out.Simultaneously, pipe interior is equipped with the ELF receiving system on the signal receiving/transmission device 7 of plugging device, carry out the action that starts main drive cylinder 1 by the remote control executive system of plugging device again, control a series of actions of shutoff then, and series of displacement, the pressure and other parameters of system in the pipeline, become electrical signal by sensor, and then convert the ELF electromagnetic wave to and feed back to the ground control center.This ultra-low frequency signal transceiver is a prior art, no longer describes in detail.Terrestrial pipeline intelligent plugging device communication mode is simple relatively, and control computer will directly link to each other with placing the portable antenna by shutoff pipeline section top.Thereby the staff just can be on land or marine lash ship finish a series of actions such as tracing and positioning to the plugging device of pipeline, sealing, deblocking.

Comprehensive above each embodiment, the mode of summing up plugging device realization de-plugging of the present utility model has three kinds: first kind, make plugging device front and back pressure balance, main drive cylinder 1 right cavity pressure increases, left side cavity pressure discharges, move to left thereby promote piston 12, promote pressure bearing head 2 and separate, get final product de-plugging with final controlling element dish 3.Second kind, pressure before and after the balance plugging device discharges main drive cylinder 1 left and right sides cavity pressure simultaneously, and promote pressure bearing head 2 by one group of resilient compressible member 81 and separate with final controlling element dish 3, thus de-plugging.The third, when system communication and Control Failure, utilize the de-plugging of system mechanics fail-safe, promptly when plugging device final controlling element dish 3 pressure on one side reaches setting pressure, pressure-relief valve 148 on miniature main hydraulic system 14 oil hydraulic circuits is opened automatically, make the release simultaneously of chamber, main drive cylinder 1 left and right sides, promote final controlling element dish 3 by resilient compressible member 81 again and separate, finish de-plugging with pressure bearing head 2.

Mode of execution 2

As shown in Figure 5, the structure of this mode of execution and mode of execution 1, principle and effect are basic identical, no longer repeat, difference is: signal receiving/transmission device 7 and miniature main hydraulic system 14 all are not arranged in the hollow chamber 8 of intelligent plugging device in tube inside, but connect the outside that hangs over intelligent plugging device in tube.

Specifically be to connect to hang with a sealing drum 70 on the exterior edge face 23 of pressure bearing head 2, the fuel tank 141 of the control module 140 of signal receiving/transmission device 7 and miniature main hydraulic system 14, battery pack 149 and pressure dwelling loop, oil hydraulic pump 144 and whole hydraulic element (not shown) are arranged in the sealing tube 70.Sealing drum 70 is connected hang on the exterior edge face 33 of final controlling element dish 3, not limit, need this moment each supporting wheel 24 is arranged on the exterior edge face 701 of sealing drum 70.Signal receiving/transmission device 7 and miniature main hydraulic system 14 also can place in the hollow chamber 8 respectively and in the sealing drum 70 in addition, and sealing drum 70 can even hang on the exterior edge face 23 of pressure bearing head 2 equally or connect and hangs on the exterior edge face 33 of final controlling element dish 3, the concrete space of visual intelligent plugging device in tube is designed, and does not limit.In this mode of execution, though the volume of whole plugging device is bigger than normal relatively, but what the hollow chamber 8 of intelligent plugging device in tube inside can be provided with like this is excessive, to be used for ccontaining signal receiving/transmission device 7 and miniature main hydraulic system 14, hollow chamber 8 can be reduced relatively, the needed minimum stroke of the locking and unlocking can be realized thereby the stroke of main drive cylinder 1 and each secondary drive cylinder 15 can be contracted to.

The above only is an embodiment of the present utility model, and when can not limiting the scope that the utility model is implemented with this, all equivalent variations and modifications of doing according to summary of the invention of the present utility model all should still belong in the scope that the utility model patent contains.

Claims

1. an intelligent plugging device in tube is characterized in that, includes:

One final controlling element dish is connected on the described cylinder body;

2. intelligent plugging device in tube according to claim 1, it is characterized in that, described pressure bearing head has interior edge face, exterior edge face and from axially extended first portion of described interior edge face, this final controlling element dish has interior edge face, exterior edge face and from axially extended second portion of described interior edge face, described first portion and second portion are corresponding and form a hollow chamber, described extrusion bowl is nested with the outer circumferential face in described first portion and second portion, and described cylinder body, piston and piston rod are positioned at described hollow chamber.

3. intelligent plugging device in tube according to claim 2 is characterized in that, described lock slider comprises four to eight and along the circumferential direction evenly distribute, and is provided with locking screw thread at the outer surface of lock slider; The sub-piston bar that described each secondary drive cylinder includes subsidiary cylinder, sub-piston and is connected with sub-piston, in second portion of final controlling element dish, be provided with fixed axoid, described fixed axoid is consistent with the conical slide true dip direction of extrusion bowl, each subsidiary cylinder secure fit is on described fixed axoid and affixed with the interior edge face of final controlling element dish, and described each sub-piston bar is fixed on described each lock slider away from an end of piston.

4. intelligent plugging device in tube according to claim 3, it is characterized in that, described main drive cylinder and whole secondary drive cylinder are oil hydraulic cylinder, and all are communicated in a miniature main hydraulic system, and described miniature main hydraulic system comprises control module, battery pack and pressure dwelling loop; Described miniature main hydraulic system is positioned at described hollow chamber or places a sealing drum, and the sealing tube connects on the exterior edge face that hangs over described pressure bearing head or company hangs on the exterior edge face of described final controlling element dish, and described signal receiving/transmission device is the ultra-low frequency signal transmitterreceiver appliance and is positioned at described hollow chamber or places the sealing tube.

5. intelligent plugging device in tube according to claim 4, it is characterized in that, this pressure dwelling loop comprises fuel tank, filter, stop valve, oil hydraulic pump, one-way valve and 3-position 4-way solenoid directional control valve successively, the actuator port of 3-position 4-way solenoid directional control valve also connects main drive cylinder and whole secondary drive cylinder, the return opening of main drive cylinder is communicated with fuel tank after being communicated with a pressure-relief valve, and relief valve is communicated with between one-way valve and oil hydraulic pump and is communicated with fuel tank.

6. intelligent plugging device in tube according to claim 3, it is characterized in that, when described main drive cylinder drives the state that pressure bearing head and final controlling element dish move in opposite directions, described lock slider rises along the conical slide of extrusion bowl, and the packing circle is folded between the extruding end face of the interior edge face of pressure bearing head and extrusion bowl; Be provided with equally distributed a plurality of resilient compressible member between the interior edge face of described main drive cylinder and pressure bearing head, each resilient compressible member is nested with respectively on a plurality of guide rods.

7. intelligent plugging device in tube according to claim 3, it is characterized in that, the conical slide of described extrusion bowl and the lower surface of lock slider are provided with the guide structure of the concavo-convex cooperation of extending vertically, described guide structure comprises the raised line on the lower surface that is located at conical slide and whole lock sliders and is located at corresponding groove on another person.

8. intelligent plugging device in tube according to claim 7 is characterized in that the cross section of described raised line and groove is swallow-tail form.

9. intelligent plugging device in tube according to claim 3, it is characterized in that, the extruding end face of the interior edge face of described pressure bearing head and extrusion bowl is the inclined-plane, the distance that the extruding end face of the interior edge face of pressure bearing head and extrusion bowl points to along the axle center on the direction of far-end radially increases gradually, the stressed end face of the axial both sides of packing circle is the inclined-plane, matches with the interior edge face of described pressure bearing head and the extruding end face of extrusion bowl respectively.

10. intelligent plugging device in tube according to claim 3 is characterized in that, described packing circle is made by polyurethane, and described lock slider is made by Hard Alloy Steel.

11. intelligent plugging device in tube according to claim 3 is characterized in that, circumferentially uniform supporting wheel of a plurality of edges is set respectively on the exterior edge face of the exterior edge face of pressure bearing head and final controlling element dish.

12., it is characterized in that described signal receiving/transmission device is the ultra-low frequency signal transmitterreceiver appliance according to any described intelligent plugging device in tube in the claim 2,3,5～11; Described signal receiving/transmission device is positioned at described hollow chamber, perhaps place in the sealing drum, and the sealing tube connects on the exterior edge face that hangs over described pressure bearing head or company hangs on the exterior edge face of described final controlling element dish.