CN210134889U - Extraction tubular column of seabed natural gas hydrate - Google Patents
Extraction tubular column of seabed natural gas hydrate Download PDFInfo
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- CN210134889U CN210134889U CN201920949749.9U CN201920949749U CN210134889U CN 210134889 U CN210134889 U CN 210134889U CN 201920949749 U CN201920949749 U CN 201920949749U CN 210134889 U CN210134889 U CN 210134889U
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- 238000000605 extraction Methods 0.000 title claims abstract description 92
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 28
- 238000004804 winding Methods 0.000 claims abstract description 3
- 238000001125 extrusion Methods 0.000 claims description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000008094 contradictory effect Effects 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 13
- 239000012535 impurity Substances 0.000 description 13
- 238000005065 mining Methods 0.000 description 11
- 239000002689 soil Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000013049 sediment Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000005034 decoration Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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Abstract
The utility model discloses a seabed natural gas hydrate's extraction tubular column relates to the exploitation field of combustible ice, and its technical scheme main points are: including offshore platform, its characterized in that: including setting up the extraction pipe that extends to the submarine exploitation position on offshore platform, the extraction pipe is close to the submarine exploitation position and is equipped with the first filter screen of being connected with the extraction inside pipe wall slides, first filter screen a week is provided with a plurality of first compression spring, and is a plurality of first compression spring is connected with the second filter screen, submarine exploitation position and fixed connection are kept away from on the extraction inside pipe wall to the second filter screen, first filter screen fixed connection wears out the cable that the extraction pipe back of the body left offshore platform one end, the cable is on the fixed pulley along the winding of extraction pipe direction, the fixed pulley sets up on offshore platform, reaches the purpose that reduces in the earthing gets into the extraction tubular column.
Description
Technical Field
The utility model relates to an exploitation field of combustible ice, more specifically say that it relates to a seabed natural gas hydrate's extraction tubular column.
Background
The natural gas hydrate is also called as combustible ice, is a solid substance formed by mixing water and natural gas under the conditions of high pressure and low temperature, has the characteristics of extremely-like ice and snow or solid alcohol, can be combusted when meeting fire, has convenient use, high combustion value, cleanness, no pollution and the like, is used as a first-choice alternative energy source for 'later petroleum generation', mainly belongs to silt type reservoirs in China sea areas, is a storage type accounting for more than 90 percent of the whole world, and is generally sandy in seabed strata covering the reservoir.
Chinese patent with publication number CN109113594A discloses a combustible ice extraction tubular column, including a plurality of first spacing holes, limit structure, transport structure, fixed plate and connection structure, this utility model function mode: the conveying structure is connected with the circulating pipeline for cooling, so that the interior of the conveying structure can be cooled in the land mining and conveying processes, the danger caused by overhigh internal temperature of the conveying structure and the influence on the conveying quality are effectively prevented, and the conveying quality is improved; two conveying structures are connected through the connecting structure, so that the conveying structures are more convenient to mount and dismount, and the sealing performance between the conveying structures is improved.
However, in the process of extracting combustible ice by the extraction pipe, the combustible ice layer is partially collapsed, so that the soil covering layer is likely to collapse to the combustible ice layer, and at the moment, the extraction pipe column can also absorb soil, entering the soil covering layer into the combustible ice layer, when the combustible ice is extracted by the extraction pipe column, so that the purity of the extracted combustible ice is reduced.
Disclosure of Invention
The utility model aims at providing a seabed natural gas hydrate's extraction tubular column reaches and reduces the earthing and get into the purpose in the extraction tubular column.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a submarine natural gas hydrate's extraction tubular column, is including setting up the extraction pipe on offshore platform and extending to submarine exploitation position, the extraction pipe is close to submarine exploitation position and is equipped with the first filter screen of being connected with the extraction pipe inner wall slides, first filter screen a week is provided with a plurality of first compression spring, and is a plurality of first compression spring is connected with the second filter screen, submarine exploitation position and fixed connection are kept away from to the second filter screen on the extraction pipe inner wall, first filter screen fixedly connected with wears out the cable that the extraction pipe back of the body leaves offshore platform one end, the cable is on the fixed pulley along the winding of extraction pipe direction, the fixed pulley sets up on offshore platform.
By adopting the technical scheme, firstly, impurities such as soil, seabed sediments and the like can be removed through the filtering action of the first filter screen and the second filter screen; the second, the pulling force effect through the fixed pulley drives the first filter screen through the cable connection and removes to the seabed mining area, loosens the fixed pulley, and under compression spring's effect, first filter screen reaches the mesh impurity's of shaking first filter screen in order to detach first filter screen mesh under the motion of second filter screen direction.
Preferably, a through hole device for cleaning the meshes of the second filter screen is arranged in the extraction pipe.
By adopting the technical scheme, firstly, impurities such as soil, seabed sediments and the like can be removed through the filtering action of the first filter screen and the second filter screen; the second, the pulling force effect through the fixed pulley drives the first filter screen of connecting through first cable and removes to the seabed mining area, loosens the fixed pulley, and under compression spring's effect, first filter screen reaches the mesh impurity's of shaking first filter screen in order to detach first filter screen mesh to the motion of second filter screen direction.
Preferably, the through-hole device includes and articulates a plurality of roofs on the extraction pipe through the articulated shaft, and is a plurality of the roof is along extraction pipe a week setting and distribute between first filter screen and second filter screen, and is a plurality of the circular shape supporting network has been placed to one side that the roof deviates from first filter screen, the supporting network includes annular support ring, connect a plurality of bracing pieces on the annular support ring, it is a plurality of adjacent the bracing piece is and has a plurality of clearances, and is a plurality of one side fixedly connected with fluff that the bracing piece deviates from first filter screen, be equipped with on the articulated shaft and make the roof be in horizontally first torsional spring.
Through adopting above-mentioned technical scheme, when the fixed pulley drives first filter screen motion, loosen the fixed pulley, under compression spring's effect, first filter screen is to the motion of second filter screen direction, makes first filter screen touch the roof through torsional spring coupling at the extraction tube inner wall, and the roof moves to the second filter screen, makes the fluff of connection roof and backup pad on the roof of sliding touch the second filter screen, has reached the purpose of clean second filter screen.
Preferably, one side of the top plate, which faces away from the soft fur, is provided with a rubber pad.
Through adopting above-mentioned technical scheme, because first filter screen touches the roof and makes its rebound, make easy wearing and tearing under the effect of frictional force between first filter screen and roof, so deviate from the one side of fluff at the roof and be provided with the rubber pad, reduce wearing and tearing, increase life.
Preferably, the first filter screen includes first active carbon filter screen, first stainless steel filter screen along being close to seabed exploitation position direction in proper order, the second filter screen includes second active carbon filter screen, second stainless steel filter screen along being close to seabed exploitation position direction in proper order.
By adopting the technical scheme, firstly, the first filter screen is firstly contacted with the extracted gas-liquid combustible ice, so that the first filter screen is easily corroded by the gas-liquid combustible ice, and the stainless steel filter screen can prolong the service life of the first filter screen and the second filter screen and play a role in rust prevention; secondly, impurities such as large-molecule soil, seabed sediments and the like are primarily filtered, and then the impurities such as small-molecule soil, seabed sediments and the like are further filtered through an activated carbon filter screen, so that a better filtering effect is achieved.
Preferably, offshore platform sets up the through-hole that supplies the extraction pipe to pass through, set up the standing groove of a plurality of tank bottoms along vertical direction subsection on the pore wall circumference of through-hole, each all be equipped with second compression spring in the standing groove, the tank bottom at the standing groove is fixed to second compression spring's one end, and the other end extends the notch of standing groove and is equipped with the extrusion piece of contradicting with the extraction pipe outer wall in the one end that extends.
Through adopting above-mentioned technical scheme, in putting into the through-hole with the extraction pipe, the extrusion piece was contradicted at the outer wall of extraction pipe under compression spring's the effect of the extrusion force this moment, and then fixes the extraction pipe at the through-hole, and the fixed not unidimensional extraction pipe of the extrusion piece of being convenient for this moment satisfies the operation requirement.
Preferably, the notch wall of the placing groove is fixedly provided with an annular supporting plate along the horizontal direction, the upper surface of the supporting plate is slidably connected with an annular inserting plate which closes each notch of the placing groove and is abutted against the hole wall of the through hole, and the inserting plate enables the extrusion block to be completely positioned in the placing groove.
By adopting the technical scheme, firstly, the arrangement of the insertion plate is convenient for fixing the extrusion block in the through hole and further convenient for placing the extraction pipe in the through hole, after the extraction pipe is placed in the through hole, the insertion plate is taken out of the through hole, and at the moment, the extrusion block is moved out of the through hole under the action of the compression spring and is abutted against the outer wall of the extraction pipe; secondly, the rotating part rotates to drive the inserting plate to rotate, so that the extruding block is abutted against the outer wall of the extracting pipe.
Preferably, the number of the placing grooves is set to be three, the placing grooves are evenly formed in the wall of the through hole, the inserting plate is provided with a first opening, a second opening and a third opening, the first opening, the second opening and the third opening are used for allowing the extrusion blocks in the three placing grooves to move out of the placing grooves respectively, the width and the height of the first opening are the width and the height of the extrusion blocks, the width and the height of the second opening and the third opening are formed in an arithmetic progression in the width and the height of the extrusion blocks with tolerance on the size of the first opening, and the inserting plate is provided with a rotating part for enabling the inserting plate to rotate on the supporting plate.
Through adopting above-mentioned technical scheme, when needs move the extrusion piece into the standing groove, aim at one of them extrusion piece with first opening, then rotate and insert the board, make the extrusion piece just right with first opening receive the outer wall conflict of inserting the board, will also push corresponding standing groove with the extrusion piece just right with the second opening this moment, continue to rotate this moment and insert the board, make the extrusion piece just right with first opening, the second opening receive the outer wall conflict of inserting the board, will also push corresponding standing groove with the extrusion piece just right with the third opening in, continue to rotate the board this moment, make and first opening, the second opening, the extrusion piece just right with the third opening all receives the outer wall conflict of inserting the board, and then will be convenient for operator alone will each extrusion piece immigration standing groove in.
Preferably, the rotatable member comprises a spur ring threaded on the side of the insertion plate remote from the extraction duct.
By adopting the technical scheme, the inserting plate can be conveniently stirred.
Preferably, the extraction pipe is close to the one end circumference of submarine exploitation position and is equipped with the axis of rotation, the axis of rotation is provided with a plurality of gas covers through second torsional spring circumference, each the gas cover skew extraction pipe length direction slope sets up, second torsional spring one end is connected in the axis of rotation, and the other end is connected with the gas cover.
Through adopting above-mentioned technical scheme, when on the flammable ice of extraction gas-liquid, a plurality of gas covers pass through the effect of torsional spring, play the guard action to the extraction pipe.
In summary, firstly, impurities such as mud, seabed sediments and the like can be removed through the filtering action of the first filter screen and the second filter screen; secondly, the first filter screen connected through a first cable is driven to move towards the seabed mining area through the tension action of the fixed pulley, the fixed pulley is loosened, and the first filter screen moves towards the second filter screen in a reverse direction under the action of the compression spring, so that the aim of vibrating the first filter screen to remove mesh impurities of the first filter screen is fulfilled; thirdly, the extraction pipe is stabilized and protected, and the exploitation is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present embodiment;
FIG. 2 is a schematic structural diagram of the present embodiment for embodying the support ring;
FIG. 3 is a schematic structural diagram of a straight toothed ring according to the present embodiment;
FIG. 4 is a schematic structural view of the present embodiment for embodying an interposer board;
fig. 5 is a schematic structural diagram of the first filter screen and the second filter screen in the embodiment;
FIG. 6 is a schematic structural diagram of the support rod according to the present embodiment;
fig. 7 is a schematic structural diagram for embodying the extrusion block of the present embodiment.
In the figure: 1. an offshore platform; 2. an extraction pipe; 3. a first compression spring; 4. a through hole; 5. a placement groove; 6. a straight toothed ring; 7. a fixed pulley; 8. a cable; 9. a gas hood; 10. a support plate; 11. extruding the block; 12. an insert plate; 13. a top plate; 14. a support net; 15. softening the wool; 16. a first filter screen; 17. a second filter screen; 18. a rotating shaft; 19. a second torsion spring; 20. a first torsion spring; 21. a rubber pad; 22. a second compression spring; 23. a first opening; 24. a second opening; 25. a third opening; 26. hinging a shaft; 141. a support ring; 142. a support bar; 143. a gap; 161. a first activated carbon screen; 162. a first stainless steel screen; 171. a second activated carbon screen; 172. a second stainless steel screen.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An extraction pipe column of seabed natural gas hydrate is disclosed, as shown in figure 1, and comprises an extraction pipe 2 which is arranged on an offshore platform 1 and extends to a seabed exploitation position, a first filter screen 16 which is connected with the inner wall of the extraction pipe 2 in a sliding manner is arranged at the position, close to the seabed exploitation position, of the extraction pipe 2, a plurality of first compression springs 3 are arranged on the periphery of the first filter screen 16, a plurality of first compression springs 3 are connected with a second filter screen 17, the second filter screen 17 is far away from the seabed exploitation position and is fixedly connected to the inner wall of the extraction pipe 2, a cable 8 which penetrates out of one end of the extraction pipe 2, which is far away from the offshore platform 1, is fixedly connected with the first filter screen 16, the cable 8 is wound on a fixed pulley 7 along the direction of the extraction pipe 2, the offshore fixed pulley 7 is arranged on the offshore platform 1, and impurities such as soil, first filter screen 16 fixedly connected with wears out extraction pipe 2 one end and leans on the first cable 8 of submarine mining position, first cable 8 is the submarine mining position direction fixedly connected with of back of the body and sets up fixed pulley 7 on offshore platform 1, the pulling force effect through the fixed pulley drives the first filter screen of connecting through first cable and removes to submarine mining area, loosen the fixed pulley, under compression spring's effect, first filter screen is to the motion of second filter screen direction, reach the mesh impurity's of shaking first filter screen in order to detach first filter screen purpose.
As shown in fig. 1, a mesh device which enables meshes of a second filter screen 17 to be cleaned is arranged in an extraction pipe 2, a first filter screen 16 connected through a first cable 8 is driven to move towards a seabed mining area through the pulling force of a fixed pulley 7, the fixed pulley 7 is loosened, the first filter screen 16 moves towards the second filter screen 17 in a reverse direction under the action of a compression spring 3, the purpose of vibrating the first filter screen 16 to remove mesh impurities of the first filter screen 16 is achieved, a rotating shaft 18 is circumferentially arranged at one end, close to the seabed mining position, of the extraction pipe 2, a plurality of gas hoods 9 are circumferentially arranged on the rotating shaft 18 through a second torsion spring 19, each gas hood 9 is obliquely arranged relative to the extraction pipe 2, one end of the second torsion spring 19 is connected to the rotating shaft 18, the other end of the second torsion spring is connected with the gas hoods 9, and gas-liquid combustible ice in a molten state exists in the seabed mining, when the extraction pipe 2 is abutted against the gas-liquid combustible ice which is not in a molten state, the gas hoods 9 play a role in protecting the extraction pipe 2 through the action of the torsion springs.
As shown in fig. 1, first filter screen 16 and second filter screen 17 all include activated carbon filter screen 21 along being close to submarine mining position direction in proper order, stainless steel filter screen 22 contacts with the flammable ice of gas-liquid of extraction at first, make stainless steel filter screen 22 receive the corruption of the flammable ice of gas-liquid easily, stainless steel filter screen 22 can tentatively filter impurity such as earth of macromolecule and submarine deposit, play rust-resistant effect, impurity such as earth of micromolecule and submarine deposit passes through activated carbon filter screen 21 and further filters, better filter effect has been reached.
Referring to fig. 1 and 2, the through-hole device includes a plurality of top plates 13 hinged to the extraction pipe 2 through a hinge shaft 26, the plurality of top plates 13 are arranged around the extraction pipe and distributed between the first filter 16 and the second filter 17, a circular support net 14 is disposed on one side of the plurality of top plates 13 away from the first filter 16, the support net 14 includes an annular support ring 141, the annular support ring 141 is connected with a plurality of support rods 142, a plurality of adjacent support rods 142 have a plurality of gaps 143, one side of the plurality of support rods 142 away from the first filter 16 is fixedly connected with bristles 15, the hinge shaft 26 is provided with a first torsion spring 20 for making the top plates 13 horizontal, when the fixed pulley 7 drives the first filter 16 to move, the fixed pulley 7 is loosened, and the first filter 16 moves towards the second filter 17 under the action of a compression spring 3, the first filter screen 16 is made to touch the top plate 13 connected to the inner wall of the extraction pipe 2 through the torsion spring, the top plate 13 moves towards the second filter screen 17, the top plate 13 connected to the top plate 13 in a sliding manner and the fluff 15 on the supporting plate 14 touch the second filter screen 17, and the purpose of cleaning the second filter screen 17 is achieved, in addition, a rubber pad is arranged on one side of the top plate 13 departing from the fluff 15, as the first filter screen 16 touches the top plate 13 to move upwards, the first filter screen 16 and the top plate 13 are easy to wear under the action of friction force, a rubber pad is arranged on one side of the top plate 13 departing from the fluff 15, the wear is reduced, and the service life is prolonged,
as shown in fig. 3, as shown in fig. 4, the offshore platform 1 is provided with a through hole 4 for the extraction pipe 2 to pass through, a plurality of placing grooves 5 are arranged on the circumference of the hole wall of the through hole 4 along the vertical direction, each of the placing grooves 5 is internally provided with a compression spring 3, one end of the compression spring 3 is fixed at the bottom of the placing groove 5, the other end of the compression spring extends out of the notch of the placing groove 5 and is provided with a pressing block which is abutted against the outer wall of the extraction pipe 2 at the extended end, the extraction pipe 2 is placed into the through hole 4, the pressing block 11 is abutted against the outer wall of the extraction pipe 2 under the action of the pressing force of the compression spring 3 at the moment, and then the extraction pipe 2 is fixed at the through hole 4, the pressing block 11.
Referring to fig. 5, as shown in fig. 6, an annular support plate 10 is fixedly arranged on the notch wall of each placement groove 5 along the horizontal direction, an annular insertion plate 12 which seals the notches of the placement grooves 5 and is abutted against the hole wall of the through hole 4 is slidably connected to the upper surface of the support plate 10, the insertion plate 12 enables the extrusion block 11 to be completely positioned in the placement groove 5, the insertion plate 12 is arranged to facilitate the extrusion block 11 to be fixed in the through hole 4 and further facilitate the extraction tube 2 to be placed in the through hole 4, after the extraction tube 2 is placed in the through hole 4, the insertion plate 12 is taken out from the through hole 4, at this time, the extrusion block 11 is moved out from the through hole 4 under the action force of the compression spring 3 and is abutted against the outer wall of the extraction tube 2, the insertion plate 12 is provided with a rotating member which enables the insertion plate 12 to rotate on the support plate 10, the rotating member comprises a straight tooth ring 6 which is screwed on one side of, causing the extrusion block 11 to abut against the outer wall of the extraction duct 2.
Referring to fig. 5, as shown in fig. 7, the number of the placing slots 5 is set to three and uniformly arranged on the wall of the through hole 4, the inserting plate 12 is provided with a first opening 23, a second opening 24 and a third opening 25 for allowing the extrusion blocks 11 in the three placing slots 5 to move out of the placing slots 5 respectively, the width and height of the first opening 23 are the width and height of the extrusion block 11, the width and height of the second opening 24 and the third opening 25 are arranged in the size of the first opening 23 in an arithmetic progression with the tolerance as the width and height of one extrusion block 11, when the extrusion block 11 needs to be moved into the placing slot 5, the first opening 23 is aligned with one of the extrusion blocks 11, then the inserting plate 12 is rotated to make the extrusion block 11 opposite to the first opening 23 be abutted by the outer wall of the inserting plate 12, at this time, the extrusion block 11 opposite to the second opening 24 is also pushed into the corresponding placing slot 5, at this time, the inserting plate 12 is continuously rotated, so that the extrusion blocks 11 facing the first opening 23 and the second opening 24 are abutted by the outer walls of the inserting plate 12, the extrusion blocks 11 facing the third opening 25 are also pushed into the corresponding placing grooves 5, at this time, the inserting plate 12 is continuously rotated, so that the extrusion blocks 11 facing the first opening 23, the second opening 24 and the third opening 25 are all abutted by the outer walls of the inserting plate 12, and an operator can conveniently move each extrusion block 11 into the placing groove 5.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a seabed natural gas hydrate's extraction tubular column which characterized in that: including setting up extraction pipe (2) on offshore platform (1) and extending to the submarine exploitation position, extraction pipe (2) are close to the submarine exploitation position and are equipped with first filter screen (16) of being connected with extraction pipe (2) inner wall slides, first filter screen (16) a week is provided with a plurality of first compression spring (3), and is a plurality of first compression spring (3) are connected with second filter screen (17), submarine exploitation position and fixed connection are kept away from on extraction pipe (2) inner wall in second filter screen (17), first filter screen (16) fixedly connected with wears out cable (8) that extraction pipe (2) deviate from offshore platform (1) one end, cable (8) are along extraction pipe (2) direction winding on fixed pulley (7), fixed pulley (7) set up on offshore platform (1).
2. The subsea natural gas hydrate extraction string of claim 1, wherein: and a through hole device for cleaning the meshes of the second filter screen (17) is arranged in the extraction pipe (2).
3. The subsea natural gas hydrate extraction string of claim 2, wherein: the through-hole device includes and articulates a plurality of roof (13) on extraction pipe (2), a plurality of roof (13) set up and distribute between first filter screen (16) and second filter screen (17) along extraction pipe a week, and is a plurality of circular shape supporting network (14) have been placed to roof (13) one side that deviates from first filter screen (16), supporting network (14) are including annular supporting ring (141), connect a plurality of bracing pieces (142) on annular supporting ring (141), and a plurality of adjacent bracing piece (142) are a plurality of clearances (143), and are a plurality of bracing piece (142) deviate from one side fixedly connected with fluff (15) of first filter screen (16), be equipped with on articulated shaft (26) and make roof (13) be in horizontally first torsional spring (20).
4. The subsea natural gas hydrate extraction string of claim 3, wherein: and a rubber pad (21) is arranged on one side of the top plate (13) departing from the soft fur (15).
5. The subsea natural gas hydrate extraction string of claim 1, wherein: first filter screen (16) are along being close to seabed exploitation position direction and are included first active carbon filter screen (161), first stainless steel filter screen (162) in proper order, second filter screen (17) are along being close to seabed exploitation position direction and include second active carbon filter screen (171), second stainless steel filter screen (172) in proper order.
6. The subsea natural gas hydrate extraction string of claim 1, wherein: through-hole (4) that supply extraction pipe (2) to pass through are seted up in offshore platform (1), standing groove (5) of a plurality of tank bottoms along vertical direction subsection are seted up to the pore wall week of through-hole (4), each all be equipped with second compression spring (22) in standing groove (5), the tank bottom at standing groove (5) is fixed to the one end of second compression spring (22), and the other end extends the notch of standing groove (5) and is equipped with extrusion piece (11) of contradicting with extraction pipe (2) outer wall in the one end that extends.
7. The subsea natural gas hydrate extraction string of claim 6, wherein: the groove opening walls of the placing grooves (5) are fixedly provided with annular supporting plates (10) along the horizontal direction, the upper surfaces of the supporting plates (10) are connected with annular inserting plates (12) which are used for sealing the groove openings of the placing grooves (5) and abutted against the hole walls of the through holes (4) in a sliding mode, and the inserting plates (12) enable the extrusion blocks (11) to be completely located in the placing grooves (5).
8. The subsea natural gas hydrate extraction string of claim 7, wherein: the number of the placing grooves (5) is set to three, the placing grooves are evenly formed in the wall of the through hole (4), the inserting plate (12) is provided with a first opening (23), a second opening (24) and a third opening (25) which are used for enabling the extrusion blocks (11) in the three placing grooves (5) to move out of the placing grooves (5), the width and the height of the first opening (23) are equal-difference series of the width and the height of the extrusion blocks (11) with the tolerance on the size of the first opening (23), and the width and the height of the second opening (24) and the height of the third opening (25) are equal-difference series of the width and the height of one extrusion block (11) with the tolerance, and the inserting plate (12) is provided with a rotating piece which enables the inserting plate (12) to rotate on the supporting plate (10).
9. The subsea natural gas hydrate extraction string of claim 8, wherein: the rotating part comprises a straight tooth ring (6) which is in threaded connection with one side of the insertion plate (12) far away from the extraction pipe (2).
10. The subsea natural gas hydrate extraction string of claim 1, wherein: one end circumference that extracting pipe (2) are close to the submarine exploitation position is equipped with axis of rotation (18), axis of rotation (18) are provided with a plurality of gas covers (9), each through second torsional spring (19) circumference gas cover (9) skew extracting pipe (2) length direction slope sets up, second torsional spring (19) one end is connected on axis of rotation (18), and the other end is connected with gas cover (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920949749.9U CN210134889U (en) | 2019-06-24 | 2019-06-24 | Extraction tubular column of seabed natural gas hydrate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920949749.9U CN210134889U (en) | 2019-06-24 | 2019-06-24 | Extraction tubular column of seabed natural gas hydrate |
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| CN210134889U true CN210134889U (en) | 2020-03-10 |
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| CN201920949749.9U Active CN210134889U (en) | 2019-06-24 | 2019-06-24 | Extraction tubular column of seabed natural gas hydrate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111248694A (en) * | 2020-04-10 | 2020-06-09 | 张小玲 | International trade knowledge propaganda frame |
| CN112127846A (en) * | 2019-06-24 | 2020-12-25 | 南京延长反应技术研究院有限公司 | Extraction tubular column of seabed natural gas hydrate |
| CN112127846B (en) * | 2019-06-24 | 2024-10-22 | 南京安立格有限公司 | Extraction tubular column of seabed natural gas hydrate |
-
2019
- 2019-06-24 CN CN201920949749.9U patent/CN210134889U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112127846A (en) * | 2019-06-24 | 2020-12-25 | 南京延长反应技术研究院有限公司 | Extraction tubular column of seabed natural gas hydrate |
| CN112127846B (en) * | 2019-06-24 | 2024-10-22 | 南京安立格有限公司 | Extraction tubular column of seabed natural gas hydrate |
| CN111248694A (en) * | 2020-04-10 | 2020-06-09 | 张小玲 | International trade knowledge propaganda frame |
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