CN117846513B - Airtight type electroplating anti-corrosion heat-insulation oil pipe - Google Patents
Airtight type electroplating anti-corrosion heat-insulation oil pipe Download PDFInfo
- Publication number
- CN117846513B CN117846513B CN202410252891.3A CN202410252891A CN117846513B CN 117846513 B CN117846513 B CN 117846513B CN 202410252891 A CN202410252891 A CN 202410252891A CN 117846513 B CN117846513 B CN 117846513B
- Authority
- CN
- China
- Prior art keywords
- pipe body
- adjacent
- extrusion
- sliding
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005260 corrosion Methods 0.000 title claims abstract description 14
- 238000009713 electroplating Methods 0.000 title claims abstract description 12
- 238000009413 insulation Methods 0.000 title claims description 11
- 238000001125 extrusion Methods 0.000 claims abstract description 111
- 239000003921 oil Substances 0.000 claims description 55
- 238000007789 sealing Methods 0.000 claims description 39
- 239000010720 hydraulic oil Substances 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims 6
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 13
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Abstract
The invention relates to the technical field of heat-insulating oil pipes, in particular to an airtight type electroplating anti-corrosion heat-insulating oil pipe. Including the body, one side of body is provided with the screw thread, the opposite side of body is provided with annular groove, the body is close to its screw thread department and is provided with the spacing groove, sliding connection has the thread bush in the annular groove of body, the inner wall of body is provided with the step face, body step face department rigid coupling has the fixing base, sealed and sliding connection has the extrusion ring in the fixing base, the fixing base with the cooperation of extrusion ring forms the annular cavity of a dense wall, the body is close to one side of thread bush is inlayed and is had the equidistant hydraulic stem of distributing of circumference. According to the invention, the upper pipe body is actively rotated, and the upper pipe body drives the adjacent threaded sleeve to move upwards, so that the extrusion ring extrudes the adjacent pipe body, and the extrusion force between the extrusion ring and the adjacent pipe body is increased.
Description
Technical Field
The invention relates to the technical field of heat-insulating oil pipes, in particular to an airtight type electroplating anti-corrosion heat-insulating oil pipe.
Background
Super-thick oil refers to crude oil with extremely high viscosity and extremely poor fluidity, the exploitation process is more complex and difficult than that of conventional light crude oil, high-temperature and high-pressure steam is required to be injected into an oil pipe for exploitation of the super-thick oil, and the steam is injected into the super-thick oil along the oil pipe, so that the viscosity of the super-thick oil is reduced, and the super-thick oil can flow.
When super viscous crude is mined, need thermal-insulated oil pipe keep warm to super viscous crude in pit, thermal-insulated oil pipe can effectively prevent or slow down heat and upwards transmit to ground along oil pipe, thereby furthest keeps the heat of steam in the pit shaft, increase the effective contact time of steam with reservoir rock and crude oil, however, pass through threaded connection between the present thermal-insulated oil pipe, because need pour into high-temperature high-pressure steam into in the sleeve pipe, thermal-insulated oil pipe receives tensile load's influence for a long time simultaneously, lead to screw thread department to produce tiredly, lead to the screw thread department sealed effect of two oil pipes to reduce, make partial high-temperature high-pressure steam leak, cause thermal-insulated oil pipe's heat preservation effect to reduce.
Disclosure of Invention
In order to overcome the defects of the existing heat-insulating oil pipe, the invention provides an airtight type electroplating anti-corrosion heat-insulating oil pipe.
The technical proposal is as follows: the utility model provides an airtight formula is electroplated anticorrosive thermal-insulated oil pipe, includes the body, one side of body is provided with the screw thread, the opposite side of body is provided with the annular groove, the body is close to its screw thread department and is provided with the spacing groove, the rigid coupling has circumference equidistant guide bar in the annular groove of body, sliding connection has the thread bush in the annular groove of body, the thread bush with guide bar sliding fit, the guide bar is used for right the thread bush is led, the inner wall of body is provided with the step face, body step face department rigid coupling has the fixing base, seal in the fixing base and sliding connection have the extrusion ring, the fixing base with the extrusion ring all with the body extrusion fit that is close to, the fixing base with the extrusion ring cooperation forms a inclosed annular cavity, the body is close to one side of thread bush is inlayed the equidistant hydraulic stem that distributes of circumference, the flexible end of hydraulic stem with the thread bush rigid coupling, the hydraulic stem pass through lead oil pipe with the annular hydraulic stem intercommunication between the extrusion ring.
Still further, the lateral surface of thread bush be provided with the friction disc of body laminating is used for increasing the thread bush with frictional force between the body provides resistance for the thread bush is followed the body removes.
Furthermore, the outer side surface and the thread of the pipe body are both electroplated with anti-corrosion coatings, and the outer wall of the pipe body is provided with a heat insulation layer for insulating super-thick oil.
Still further, the fixing base is close to one side of screw sleeve is provided with annular sealing block, just the outside of the annular sealing block on the fixing base sets up to the wave, the body is close to screw thread department and is provided with wavy recess, the wavy recess of body with be close to mutually annular sealing block extrusion fit on the fixing base increases the body with be close to the leakproofness of fixing base.
Furthermore, the outer side of the fixing seat is flush with the step surface of the pipe body, and the threaded sleeve is in sealing fit with the pipe body.
Still further, the extrusion ring is close to one side of screw thread cover sets up to the inclined plane, the body is kept away from the one end of screw thread cover is provided with the inclined plane, the extrusion ring with close to the inclined plane extrusion cooperation of body, increase the extrusion ring with close to contact area between the body.
Still further, the inclined plane department of extrusion ring installs high temperature resistant elastic sealing ring for improve extrusion ring with close to seal nature between the inclined plane of body.
Still further, the pipe body is provided with a second blind hole which is circumferentially equidistant, the second blind hole of the pipe body is internally sealed and is in sliding connection with an extrusion plug, a first sliding plug and a second sliding plug, the first sliding plug is positioned between the adjacent extrusion plug and the adjacent second sliding plug, a connecting rod is fixedly connected in an extrusion manner, the connecting rod on the extrusion plug penetrates through the adjacent first sliding plug and the second sliding plug, the connecting rod on the extrusion plug is respectively in sliding connection with the adjacent first sliding plug and the adjacent second sliding plug, the second sliding plug is in sliding fit with the second blind hole on the side of the pipe body, the first sliding plug is in sliding fit with the adjacent first sliding plug and the adjacent second sliding plug, the second sliding plug is symmetrically matched with the second sliding plug, the first sliding plug is fixedly connected with the second sliding plug, the second sliding plug is symmetrically matched with the second sliding plug, the second sliding plug is fixedly connected with the second sliding plug, the first sliding plugs and the second sliding plugs are respectively in limit fit with the adjacent fixed plates, springs are fixedly connected between the first sliding plugs and the adjacent second sliding plugs, hydraulic oil is filled in sealed cavities formed by the adjacent first sliding plugs and the adjacent second blind holes of the pipe body, and the sealed cavities formed by the adjacent first sliding plugs and the adjacent second blind holes of the pipe body are communicated with the adjacent first blind holes through oil guide pipes.
Still further, the gag lever post is located adjacent between the extrusion ring and the adjacent screw thread cover, the gag lever post is used for bearing the extrusion ring is to being close to the ascending extrusion force of body, guarantees screw thread cover with be close to screw thread joint strength between the body.
Still further, first slip cock is located adjacent the middle part position of body second blind hole, just squeeze the stopper with be provided with the clearance between the adjacent the first slip cock, squeeze the stopper can all the time with body second blind hole sealing fit.
Compared with the prior art, the invention has the following advantages: according to the invention, the upper pipe body is actively rotated, and the upper pipe body drives the adjacent thread sleeves to move upwards, so that the extrusion ring extrudes the adjacent pipe bodies, the extrusion force between the extrusion ring and the adjacent pipe bodies is increased, and meanwhile, the annular sealing blocks on the fixing seat are in extrusion contact fit with the wavy grooves of the adjacent pipe bodies, so that the tightness between the two pipe bodies is further increased, and the injected high-pressure high-temperature steam leakage caused by fatigue at the thread positions for a long time is prevented; the extrusion plug is utilized to sense the pressure change in the pipe body, the positions of the first sliding plug and the second sliding plug are changed, the limiting rod is positioned in the limiting groove adjacent to the pipe body no matter in the process of steam injection and oil pumping, the connection stability of the adjacent heat insulation oil pipes is improved, the fatigue failure of threads between the adjacent heat insulation oil pipes is prevented, and the underground accident caused by the disconnection of the adjacent two heat insulation oil pipes is caused.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of a tubular body and threaded sleeve of the present invention;
FIG. 3 is a cross-sectional view of the tube body of the present invention;
FIG. 4 is a cross-sectional view of the fixing base and the compression ring of the present invention;
FIG. 5 is an enlarged view of the invention at A in FIG. 4;
FIG. 6 is a schematic perspective view of the stop lever and the second sliding plug of the present invention;
FIG. 7 is an enlarged view of the invention at B in FIG. 6;
Fig. 8 is a cross-sectional view of a first sliding plug, a second sliding plug, and the like according to the present invention.
The marks of the components in the drawings are as follows: 1. the pipe body, 2, the spacing groove, 3, the guide bar, 4, the thread bush, 5, the fixing base, 6, the extrusion circle, 7, the hydraulic rod, 9, the gag lever post, 10, the extrusion stopper, 11, first slip stopper, 12, second slip stopper, 13, the spacing ring, 14, fixed plate, 15, spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1: 1-5, including a pipe body 1, the lower part of the pipe body 1 is provided with screw threads, the inner wall of the upper part of the pipe body 1 is provided with an annular groove, the lower part of the pipe body 1 is provided with a limit groove 2, the limit groove 2 is positioned at the lower part of the screw threads of the pipe body 1, six guide rods 3 with equal intervals in the circumferential direction are fixedly connected in the annular groove of the pipe body 1, a screw thread sleeve 4 is connected in the annular groove of the pipe body 1 in a sliding manner, the height of the annular groove of the pipe body 1 is greater than that of the screw thread sleeve 4, in an initial state, the lower side surface of the screw thread sleeve 4 is contacted with the lower side of the annular groove of the pipe body 1, the outer side surface of the screw thread sleeve 4 is provided with a friction plate attached to the pipe body 1, the friction plate outside the screw thread sleeve 4 is always extruded, the friction force between the screw thread sleeve 4 and the pipe body 1 is used for increasing the friction force between the screw thread sleeve 4 and the pipe body 1, and the screw thread sleeve 4 is provided with resistance for moving along the pipe body 1, when the thread sleeve 4 is matched with the threads of the pipe body 1 adjacent to the upper side, the thread sleeve 4 is always at the initial position in the process of screwing down the pipe body 1 adjacent to the upper side, the thread sleeve 4 is in sliding fit with the guide rod 3, the guide rod 3 is used for guiding the thread sleeve 4 to prevent the thread sleeve 4 from rotating along the circumferential direction of the annular groove of the pipe body 1, the thread sleeve 4 moves upwards along the annular groove of the pipe body 1 under the guiding action of the guide rod 3 in the process of sliding up the annular groove of the pipe body 1, the thread sleeve 4 is always in a fitting state with the pipe body 1, the inner wall of the pipe body 1 is provided with a step surface, the step surface of the pipe body 1 is fixedly connected with a fixing seat 5, the outer side of the fixing seat 5 is flush with the step surface of the pipe body 1, the step surface of the fixing seat 5 is ensured to be in contact with the lower end of the pipe body 1 adjacent to the step surface of the pipe body 1 at the same time, the thread sleeve 4 is in sealing fit with the pipe body 1, the sealing performance between the two pipe bodies 1 is further improved, the annular sealing blocks are arranged on the outer annular surface of the upper side of the fixed seat 5, the outer side of the annular sealing blocks on the fixed seat 5 is provided with waves, the annular sealing blocks on the fixed seat 5 are provided with hard heat release materials, the sealing performance between the fixed seat 5 and the adjacent pipe body 1 is improved, the wavy grooves of the pipe body 1 are in extrusion fit with the annular sealing blocks on the adjacent fixed seat 5, the contact area between the fixed seat 5 and the adjacent pipe body 1 is improved, the sealing performance between the pipe body 1 and the adjacent fixed seat 5 is increased, the extrusion ring 6 is in sealing and sliding connection with the fixed seat 5, the outer side of the annular sealing blocks on the fixed seat 5 is in extrusion fit with the inner annular surface of the lower part of the adjacent pipe body 1, the outer inclined surface of the extrusion ring 6 is in extrusion fit with the inclined surface of the lower part of the adjacent pipe body 1, the pipe body 1 is extruded by the extrusion ring 6, the connection strength between two adjacent pipe bodies 1 is increased, the circumferential side of the upper part of the extrusion ring 6 is provided with an inclined surface, the lower end of the pipe body 1 is provided with an inclined surface, the extrusion ring 6 is in extrusion fit with the inclined surface of the adjacent pipe body 1, the contact area between the extrusion ring 6 and the adjacent pipe body 1 is increased, the sealing strength between the extrusion ring 6 and the adjacent pipe body 1 is improved, a high-temperature resistant elastic sealing ring is arranged at the inclined surface of the extrusion ring 6 and used for improving the sealing performance between the extrusion ring 6 and the inclined surface of the adjacent pipe body 1, the elastic sealing ring on the extrusion ring 6 has great deformation, no physical change occurs in a high-temperature environment, the lower side surfaces of the fixed seat 5 and the extrusion ring 6 are matched to form a closed annular cavity, the upper part of the pipe body 1 is embedded with four hydraulic rods 7 distributed at equal intervals in the circumferential direction, the four hydraulic rods 7 are all positioned at the lower side of the threaded sleeve 4, the flexible end and the thread bush 4 rigid coupling of hydraulic stem 7, hydraulic stem 7 is through leading the annular cavity intercommunication between oil pipe and fixing base 5 and the extrusion ring 6, when thread bush 4 upwards moves, thread bush 4 can drive four hydraulic stem 7's telescopic link upwards synchronous motion, it has hydraulic oil to annotate in the hydraulic stem 7, when the telescopic link of hydraulic stem 7 upwards moves, the inside hydraulic oil of hydraulic stem 7 can flow to the annular cavity that fixing base 5 and extrusion ring 6 cooperation formed, be used for driving extrusion ring 6 upwards to remove along fixing base 5, the outside face and the screw thread department of body 1 are all electroplated and are had anticorrosive coating, be used for extension pipe body 1's life, and the insulating layer is installed to the outer wall of body 1, be used for keeping warm super viscous oil.
When two heat insulation oil pipes are required to be connected, firstly, the lower end of the heat insulation oil pipe is required to be inserted into the upper end of the adjacent heat insulation oil pipe, in the process, the lower end of the pipe body 1 is required to be inserted into the upper end of the adjacent pipe body 1, when the threads of the lower end of the pipe body 1 are in contact with the threads of the adjacent pipe body 4, a worker rotates the pipe body 1 positioned on the upper side through a mechanical tool, at the moment, the pipe body 1 positioned on the lower side is in a fixed state, in the rotating process of the pipe body 1 on the upper side, the threads of the pipe body 1 are in threaded fit with the adjacent thread bush 4, after the pipe body 1 is screwed into the adjacent thread bush 4, the pipe body 1 is in a slow-down state, at the same speed as the downward screwing speed, meanwhile, because the thread bush 4 and the adjacent pipe body 1 have resistance, in the process, the thread bush 4 cannot relatively move with the adjacent pipe body 1, in the downward screwing process, the pipe body 1 positioned on the upper side is in extrusion contact with the fixed seat 5, until the pipe body 1 positioned on the lower side is in contact with the adjacent inclined surface of the adjacent pipe body 1, the adjacent pipe body 1 is in contact with the inclined surface of the adjacent pipe body 1, the inclined surface is in contact with the adjacent inclined surface of the adjacent pipe body 1, the lower surface is in contact with the inclined surface of the adjacent pipe body 1, the adjacent to the inclined surface is in contact with the adjacent groove 5, the lower surface of the adjacent pipe body 1, the lower side is in contact with the adjacent to the inclined surface, the lower surface is in contact with the groove, the lower surface is in contact with the lower sealing surface.
After two adjacent pipe bodies 1 contact, continue to rotate the pipe body 1 that is located the upside afterwards, under the spacing effect of guide bar 3 to adjacent thread bush 4, thread bush 4 can follow the screw thread of the adjacent pipe body 1 and upwards move, in the above-mentioned process, thread bush 4 upwards moves along the annular groove of adjacent pipe body 1 upside, simultaneously the telescopic link of four hydraulic levers 7 is upwards moved to the thread bush 4 drive, the in-process that the telescopic link of hydraulic levers 7 upwards moved, hydraulic oil in four hydraulic levers 7 flows into the annular cavity between fixing base 5 and the extrusion ring 6 along adjacent oil pipe, at this moment hydraulic oil pressure in the annular cavity between fixing base 5 and the extrusion ring 6 increases, extrusion ring 6 upwards moves along fixing base 5, and then the extrusion ring 6 upwards extrudes the inclined plane that is close to pipe body 1 lower extreme, elastic sealing ring on the extrusion ring 6 receives the extrusion to take place to warp, after the upside contact of thread bush 4 and adjacent pipe body 1, thread bush 4 just stops upwards moving, two adjacent pipe bodies 1 are connected and are accomplished.
When two heat-insulating oil pipes are required to be separated, the pipe body 1 positioned at the upper side is reversely rotated, then the pipe body 1 at the upper side is reversely rotated to be in threaded fit with the adjacent threaded sleeve 4, in the process of reversely rotating the pipe body 1 at the upper side, the pipe body 1 at the upper side starts to move upwards, the pipe body 1 at the upper side is out of contact with the adjacent extrusion ring 6, the elastic sealing ring on the extrusion ring 6 is restored to the initial state until the threads of the pipe body 1 at the upper side are out of contact with the adjacent threaded sleeve 4, then constructors drive the threaded sleeve 4 to reset by using a mechanical device, telescopic pipes of the four hydraulic rods 7 are simultaneously reset in the resetting process of the threaded sleeve 4, hydraulic oil in an annular cavity between the fixed seat 5 and the extrusion ring 6 flows back into the four hydraulic rods 7 along the four oil pipes, and then the extrusion ring 6 is reset.
Example 2: on the basis of the embodiment 1, as shown in fig. 6-8, the device further comprises an anti-failure mechanism, the anti-failure mechanism is arranged at the upper part of the pipe body 1 and used for preventing the threaded connection between the threaded sleeve 4 and the adjacent pipe body 1 from failure, the anti-failure mechanism comprises four circumferentially equidistant limiting rods 9, four circumferentially equidistant first blind holes are arranged on the inner wall of the pipe body 1, the four limiting rods 9 are respectively and slidably connected in the first blind holes of the pipe body 1, the limiting rods 9 are provided with sealing elements for increasing the tightness between the limiting rods 9 and the first blind holes of the pipe body 1, the limiting rods 9 are rigid rods, the limiting rods 9 are in sealing and limiting fit with the adjacent first blind holes of the pipe body 1, the limiting rods 9 are positioned between the adjacent extrusion rings 6 and the adjacent threaded sleeves 4, the limiting rods 9 are used for bearing the upward extrusion force of the adjacent pipe body 1 by the extrusion rings 6, when the adjacent pipe body 1 is extruded by the extrusion rings 6, the four limiting rods 9 limit the adjacent pipe body 1, so that the connection strength between the threaded sleeve 4 and threads of the adjacent pipe body 1 is prevented from being too high, four second blind holes are formed in the inner wall of the pipe body 1 at equal intervals in the circumferential direction, the first blind holes are positioned above the adjacent second blind holes, the extrusion plug 10, the first sliding plug 11 and the second sliding plug 12 are sealed and connected in the second blind holes of the pipe body 1 in a sliding manner, the first sliding plug 11 is positioned between the adjacent extrusion plug 10 and the adjacent second sliding plug 12, the first sliding plug 11 is separated from the adjacent extrusion plug 10 and the adjacent second sliding plug 12, a connecting rod is fixedly connected to the extrusion plug 10, the connecting rod on the extrusion plug 10 penetrates through the adjacent first sliding plug 11 and the adjacent second sliding plug 12, the connecting rod on the extrusion plug 10 is in sealing and sliding fit with the adjacent first sliding plug 11 and the second sliding plug 12, sealing elements are arranged between the connecting rod on the extrusion plug 10 and the adjacent first sliding plug 11 and the adjacent second sliding plug 12, the sealing elements are used for increasing the tightness of the extrusion plug 10 and the adjacent first sliding plug 11 and the adjacent second sliding plug 12, the adjacent second blind holes of the adjacent first sliding plug 11 and the adjacent second sliding plug 12 and the pipe body 1 are matched into a closed cavity, the opposite sides of the first sliding plug 11 and the adjacent second sliding plug 12 are respectively provided with a limiting ring 13, the adjacent limiting rings 13 are used for limiting the distance between the first sliding plug 11 and the adjacent second sliding plug 12, the first sliding plug 11 and the second sliding plug 12 are respectively in limiting fit with the adjacent limiting rings 13, the first sliding plug 11 is positioned in the middle position of the second blind hole of the adjacent pipe body 1, a gap is arranged between the extrusion plug 10 and the adjacent first sliding plug 11, the extrusion plug 10 can be always in sealing fit with the second blind hole of the pipe body 1, sealing rings are arranged on the outer sides of the extrusion plug 10, the first sliding plug 11 and the second sliding plug 12 and are used for increasing the tightness of the extrusion plug 10, the first sliding plug 11 and the second sliding plug 12 and the adjacent second blind holes of the pipe body 1, a limiting ring 13 is fixedly connected with the pipe body 1, two symmetrical fixing plates 14 are fixedly connected with connecting rods of the extrusion plug 10, the two fixing plates 14 are respectively positioned on the opposite sides of the adjacent first sliding plug 11 and the adjacent second sliding plug 12, the extrusion plug 10 drives the two fixing plates 14 on the extrusion plug 10 to synchronously move through the connecting rods in the moving process of the extrusion plug 10, the first sliding plug 11 and the second sliding plug 12 are respectively in limiting fit with the adjacent fixing plates 14, a spring 15 is fixedly connected between the first sliding plug 11 and the adjacent second sliding plug 12, the spring 15 is sleeved on the connecting rods of the adjacent extrusion plug 10 and is used for driving the adjacent first sliding plug 11 and the adjacent second sliding plug 12 to reset, the closed cavity formed by the adjacent first sliding plugs 11 and second sliding plugs 12 and the adjacent second blind holes of the pipe body 1 is filled with hydraulic oil, the closed cavity formed by the adjacent first sliding plugs 11 and second sliding plugs 12 and the second blind holes of the pipe body 1 is communicated with the adjacent first blind holes through an oil guide pipe, when the extrusion plugs 10 slide along the second blind holes of the adjacent pipe body 1, the first sliding plugs 11 and the adjacent second sliding plugs 12 can extrude the hydraulic oil between the two, so that the limiting rod 9 slides along the first blind holes of the adjacent pipe body 1 through the hydraulic oil, and the adjacent pipe body 1 is limited.
The in-process to super viscous crude exploitation, pour into high temperature high pressure's steam into in the thermal-insulated oil pipe that is connected, heat super viscous crude in the pit, when pouring into steam into, the steam pressure in the thermal-insulated oil pipe can extrude four extrusion stopper 10, four extrusion stopper 10 keep away from each other and remove, extrusion stopper 10 slides along the adjacent second blind hole of body 1, the connecting rod of extrusion stopper 10 extrudees adjacent first slip stopper 11 through the fixed plate 14 on it, first slip stopper 11 is close to the removal to adjacent second slip stopper 12, under the spacing effect of spacing collar 13, second slip stopper 12 can not remove, adjacent spring 15 is extruded to first slip stopper 11, spring 15 is compressed, simultaneously the connecting rod of extrusion stopper 10 slides along adjacent first slip stopper 11, the in-process that first slip stopper 11 is close to the removal to adjacent second slip stopper 12, hydraulic oil between first slip stopper 11 and the adjacent second slip stopper 12 flows into the adjacent first blind hole of body 1 along leading oil pipe, the hydraulic oil in the first blind hole in the body 1 can promote the hydraulic oil pressure of hydraulic oil gradually in the first blind hole of body 9, the hydraulic oil can promote the spacing rod 9 to move towards adjacent second slip rod 9, the spacing rod 2 is close to the spacing rod 2 along the adjacent first pipe 1, simultaneously, the extrusion force between the two adjacent pipe 9 adjacent two 1 compression rings 2 are adjacent to each other, the two adjacent compression rings 2 are located to the spacing rod 1, simultaneously, the two adjacent compression rings 2 are located between the two adjacent pipe 9 and the two adjacent compression rings are located 1, the two adjacent compression rings are located between the two adjacent two 1, the 1 and the two adjacent compression rings are located along the 1, and two adjacent compression rings are located along the two adjacent compression rings, and 2, and two adjacent compression rings are located at the two, and 2, and two adjacent two and the axial compression groove and the axial position well, and the joint well.
After the injection of hot steam into the heat-insulating oil pipe is stopped, under the elastic force of the spring 15, the first sliding plug 11 and the adjacent extrusion plug 10 are reset, the underground super-thick oil needs to be insulated and extracted, when the underground super-thick oil is extracted, the inside of the pipe body 1 is in a negative pressure state under the action of the oil pump, the four extrusion plugs 10 can move close to each other after the oil pump is started, the extrusion plug 10 slides along the adjacent second through holes of the pipe body 1, at the moment, the pipe body 1 extrudes the adjacent second sliding plug 12 through the fixed plate 14 on the extrusion plug 10, the second sliding plug 12 moves close to the adjacent first sliding plug 11, at the moment, the first sliding plug 11 and the adjacent limiting ring 13 are in a limiting fit state, the spring 15 between the second sliding plug 12 and the adjacent first sliding plug 11 is extruded, hydraulic oil between the second sliding plug 12 and the adjacent first sliding plug 11 flows into the adjacent first blind holes of the pipe body 1 again, the four limiting rods 9 are in limiting fit with the limiting grooves 2 on the pipe body 1, the pressure plug 10 is utilized to induce the pipe body 1 to change, the position of the adjacent first sliding plug 11 and the adjacent second sliding plug 11 is not connected with the adjacent pipe body 2 in the process, and the position of the adjacent pipe body is changed, and the position of the adjacent pipe is not in the adjacent pipe body 1 is changed, and the adjacent to the position of the adjacent pipe is stable, and the position of the adjacent pipe is stable in the pipe is in the pipe 2.
When oil pumping is stopped, the pressure in the pipe body 1 is restored to an initial state, at the moment, under the action of the elastic force of the spring 15, the extrusion plug 10 and the second sliding plug 12 are reset, hydraulic oil in the first blind hole of the pipe body 1 flows back between the first sliding plug 11 and the adjacent second sliding plug 12, the limiting rod 9 slides along the first blind hole of the pipe body 1 to reset, then the heat-insulating oil pipe is taken out from the well, and then the pipe body 1 positioned on the upper side is reversely rotated, so that the two adjacent pipe bodies 1 are separated from each other.
The foregoing has outlined rather broadly the more detailed description of the application in order that the detailed description of the principles and embodiments of the application may be implemented in conjunction with the detailed description of the application that follows, the examples being merely intended to facilitate an understanding of the method of the application and its core concepts; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (7)
1. An airtight type electroplating anti-corrosion heat-insulation oil pipe is characterized in that: the hydraulic telescopic pipe comprises a pipe body (1), one side of the pipe body (1) is provided with threads, the other side of the pipe body (1) is provided with an annular groove, a limit groove (2) is arranged at the position, close to the upper threads, of the pipe body (1), a guide rod (3) with equal circumferential spacing is fixedly connected in the annular groove of the pipe body (1), a threaded sleeve (4) is connected in the annular groove of the pipe body (1) in a sliding manner, the threaded sleeve (4) is in sliding fit with the guide rod (3), the guide rod (3) is used for guiding the threaded sleeve (4), a step surface is arranged on the inner wall of the pipe body (1), a fixing seat (5) is fixedly connected at the step surface of the pipe body (1), a pressing ring (6) is sealed in the fixing seat (5) and is in sliding connection with the adjacent pipe body (1), the fixing seat (5) and the pressing ring (6) are in matching manner to form a closed annular cavity, the pipe body (1) is in sliding fit with the guide rod (3), the annular cavity (4) is close to the hydraulic telescopic pipe (7) and is communicated with the annular cavity (7) through the hydraulic telescopic pipe (7) at one side, and the hydraulic telescopic pipe (7) is fixedly connected with the annular cavity (7), the hydraulic rod (7) is internally filled with hydraulic oil;
The friction plate attached to the pipe body (1) is arranged on the outer side surface of the threaded sleeve (4) and used for increasing friction force between the threaded sleeve (4) and the pipe body (1) and providing resistance for the threaded sleeve (4) to move along the pipe body (1);
An annular sealing block is arranged on one side, close to the threaded sleeve (4), of the fixing seat (5), the outer side of the annular sealing block on the fixing seat (5) is provided with a wave-shaped groove, close to the threads, of the pipe body (1), the wave-shaped groove of the pipe body (1) is in extrusion fit with the annular sealing block on the adjacent fixing seat (5), and the tightness of the pipe body (1) and the adjacent fixing seat (5) is improved;
one side of the extrusion ring (6) close to the thread sleeve (4) is provided with an inclined plane, one end of the pipe body (1) away from the thread sleeve (4) is provided with an inclined plane, the extrusion ring (6) is in extrusion fit with the inclined plane close to the pipe body (1), and the contact area between the extrusion ring (6) and the pipe body (1) is increased.
2. The airtight type electroplating corrosion-resistant heat-insulating oil pipe according to claim 1, wherein: the outer side surface and the thread of the pipe body (1) are both electroplated with anti-corrosion coatings, and the outer wall of the pipe body (1) is provided with a heat insulation layer for insulating super-thick oil.
3. The airtight type electroplating corrosion-resistant heat-insulating oil pipe according to claim 1, wherein: the outer side of the fixing seat (5) is flush with the step surface of the pipe body (1), and the threaded sleeve (4) is in sealing fit with the pipe body (1).
4. The airtight type electroplating corrosion-resistant heat-insulating oil pipe according to claim 1, wherein: and an elastic sealing ring with high temperature resistance is arranged at the inclined surface of the extrusion ring (6) and is used for improving the tightness between the extrusion ring (6) and the inclined surface adjacent to the pipe body (1).
5. The airtight type electroplating corrosion-resistant heat-insulating oil pipe according to claim 1, wherein: the anti-failure mechanism is arranged on one side, close to the threaded sleeve (4), of the pipe body (1), the anti-failure mechanism is used for preventing failure of threaded connection between the threaded sleeve (4) and the adjacent pipe body (1), the anti-failure mechanism comprises circumferentially equidistant limiting rods (9), the pipe body (1) is provided with circumferentially equidistant first blind holes, the circumferentially equidistant limiting rods (9) are respectively and slidably connected in the first blind holes of the pipe body (1), the limiting rods (9) are in sealing and limiting fit with the first blind holes of the pipe body (1), the pipe body (1) is provided with circumferentially equidistant second blind holes, the second blind holes of the pipe body (1) are internally sealed and slidably connected with extrusion plugs (10), first sliding plugs (11) and second sliding plugs (12), the first sliding plugs (11) are located between adjacent extrusion plugs (10) and adjacent second sliding plugs (12), the extrusion plugs (10) are fixedly connected with the adjacent extrusion plugs (12) in a sealing and limiting fit mode, adjacent first sliding plugs (11) and second sliding plugs (12) are matched with second blind holes adjacent to the pipe body (1) to form a closed cavity, limiting rings (13) are arranged on the opposite sides of the first sliding plugs (11) and the second sliding plugs (12) respectively, the first sliding plugs (11) and the second sliding plugs (12) are in limiting fit with the adjacent limiting rings (13) respectively, the limiting rings (13) are fixedly connected with the inner walls of the second blind holes adjacent to the pipe body (1), symmetrical fixing plates (14) are fixedly connected with connecting rods of the extrusion plugs (10) and are respectively positioned on the opposite sides of the first sliding plugs (11) and the second sliding plugs (12) respectively, the first sliding plugs (11) and the second sliding plugs (12) are in limiting fit with the adjacent fixing plates (14) respectively, hydraulic oil is filled into the closed cavity between the first sliding plugs (11) and the second sliding plugs (12) which are adjacent to the second blind holes (12) respectively, the closed cavity formed by the adjacent first sliding plug (11) and second sliding plug (12) and the second blind hole adjacent to the pipe body (1) is communicated with the adjacent first blind hole through an oil guide pipe.
6. The airtight type electroplating corrosion-resistant and heat-insulating oil pipe according to claim 5, wherein: the limiting rod (9) is located between the adjacent extrusion ring (6) and the adjacent thread sleeve (4), and the limiting rod (9) is used for bearing the upward extrusion force of the extrusion ring (6) to the adjacent pipe body (1) so as to ensure the connection strength of threads between the thread sleeve (4) and the adjacent pipe body (1).
7. The airtight type electroplating corrosion-resistant and heat-insulating oil pipe according to claim 5, wherein: the first sliding plugs (11) are located at the middle positions of the second blind holes of the pipe body (1) adjacently, gaps are formed between the extrusion plugs (10) and the first sliding plugs (11) adjacently, and the extrusion plugs (10) are in sealing fit with the second blind holes of the pipe body (1) all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410252891.3A CN117846513B (en) | 2024-03-06 | 2024-03-06 | Airtight type electroplating anti-corrosion heat-insulation oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410252891.3A CN117846513B (en) | 2024-03-06 | 2024-03-06 | Airtight type electroplating anti-corrosion heat-insulation oil pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117846513A CN117846513A (en) | 2024-04-09 |
| CN117846513B true CN117846513B (en) | 2024-05-03 |
Family
ID=90529403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410252891.3A Active CN117846513B (en) | 2024-03-06 | 2024-03-06 | Airtight type electroplating anti-corrosion heat-insulation oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117846513B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678683A (en) * | 2018-06-07 | 2018-10-19 | 盘锦辽河油田金环实业有限责任公司 | The new and effective sealing insulated tubing of one kind and its manufacturing process |
| CN112145829A (en) * | 2020-09-17 | 2020-12-29 | 席赫 | Double-end oil pipe nipple for oil field |
| CN212454282U (en) * | 2020-06-12 | 2021-02-02 | 东营市垦利区金秀石油机械有限公司 | Novel sucker rod |
| CN214405013U (en) * | 2020-12-04 | 2021-10-15 | 凯斯达科技有限公司 | Fixing mechanism for connecting interface of galvanized pipe and fire fighting pipe |
| CN113958272A (en) * | 2020-07-21 | 2022-01-21 | 山东博诺利石油装备有限公司 | Heat-preserving lining oil pipe |
| CN219541387U (en) * | 2023-06-29 | 2023-08-18 | 胜利油田胜机石油装备有限公司 | High-precision finish rolling pipe straightening device |
| CN116951191A (en) * | 2023-09-20 | 2023-10-27 | 山东道成泰和智能科技有限公司 | Building fire control pipeline connection structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6918441B2 (en) * | 2002-09-20 | 2005-07-19 | L. Murray Dallas | Cup tool for high pressure mandrel |
-
2024
- 2024-03-06 CN CN202410252891.3A patent/CN117846513B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678683A (en) * | 2018-06-07 | 2018-10-19 | 盘锦辽河油田金环实业有限责任公司 | The new and effective sealing insulated tubing of one kind and its manufacturing process |
| CN212454282U (en) * | 2020-06-12 | 2021-02-02 | 东营市垦利区金秀石油机械有限公司 | Novel sucker rod |
| CN113958272A (en) * | 2020-07-21 | 2022-01-21 | 山东博诺利石油装备有限公司 | Heat-preserving lining oil pipe |
| CN112145829A (en) * | 2020-09-17 | 2020-12-29 | 席赫 | Double-end oil pipe nipple for oil field |
| CN214405013U (en) * | 2020-12-04 | 2021-10-15 | 凯斯达科技有限公司 | Fixing mechanism for connecting interface of galvanized pipe and fire fighting pipe |
| CN219541387U (en) * | 2023-06-29 | 2023-08-18 | 胜利油田胜机石油装备有限公司 | High-precision finish rolling pipe straightening device |
| CN116951191A (en) * | 2023-09-20 | 2023-10-27 | 山东道成泰和智能科技有限公司 | Building fire control pipeline connection structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117846513A (en) | 2024-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1236502A (en) | Tubular connection having a chevron wedge thread | |
| US7559366B2 (en) | Flex-lock metal seal system for wellhead members | |
| US3504936A (en) | Extensible coupling for well pipes | |
| CN201190554Y (en) | Mechanically controlled multi-time on-off valve at downhole of oilfield and on-off tool | |
| US4078832A (en) | Pipe coupling with improved seal means | |
| BR122013000179B1 (en) | SHUTTER ADJUSTMENT ASSEMBLY AND METHOD OF ADJUSTING A RADIAL ADJUSTMENT SHUTTER ELEMENT | |
| BR122013000180B1 (en) | well apparatus | |
| CN114991709B (en) | Simple bridge plug for energy mining | |
| CN117846513B (en) | Airtight type electroplating anti-corrosion heat-insulation oil pipe | |
| US2915322A (en) | Tubing joint connection | |
| CN104712865A (en) | Expansion compensation connecting pipe fitting | |
| CN110242806B (en) | Pipeline joint fastener capable of preventing expansion with heat and contraction with cold | |
| US20230349241A1 (en) | Tubular Coupling Assembly With Modified Buttress Thread | |
| CN203022683U (en) | Composite rubber sleeve packer | |
| CN104405987B (en) | A kind of high sensitivity dynamic swelling oil connection | |
| RU2490425C1 (en) | Packer sealing element | |
| CN112065293B (en) | Oil pipe for tensile high-hardness oil field | |
| CN209908454U (en) | Isolation packer device of novel sealing structure for thickened oil thermal production well | |
| CN109138940A (en) | Completion tubular column | |
| CN104533315B (en) | The pressue device and its propulsion method of full hydraulic drive down-hole string | |
| CN109973044B (en) | Metal sealing pair packer | |
| CN203796215U (en) | Packer | |
| CN209195271U (en) | One kind can torsion pass telescoping tube | |
| CN117803329B (en) | Electroplating anti-corrosion heat-insulation oil pipe with guiding buckle structure | |
| RU2513937C1 (en) | Method of sealing by restricted gasket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |