CN212155143U - Electric submersible direct-drive screw pump - Google Patents
Electric submersible direct-drive screw pump Download PDFInfo
- Publication number
- CN212155143U CN212155143U CN202022449369.4U CN202022449369U CN212155143U CN 212155143 U CN212155143 U CN 212155143U CN 202022449369 U CN202022449369 U CN 202022449369U CN 212155143 U CN212155143 U CN 212155143U
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- Prior art keywords
- screw pump
- screw
- inlet
- movable block
- oil
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- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000011084 recovery Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 6
- 230000009189 diving Effects 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 44
- 238000000605 extraction Methods 0.000 description 7
- 239000003129 oil well Substances 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an electric diving directly drives screw pump, including the screw pump main part and with screw pump main part fixed connection's shaft coupling, the fixed shell that is provided with in shaft coupling bottom that is located the screw pump main part outside, the both sides of shell all are equipped with the inlet, and the inlet internal fixation is provided with the filter screen, the both sides of screw pump main part all are provided with the oil inlet, and the activity is provided with the movable block between oil inlet and the inlet, and the movable block is close to one side of oil inlet and fixes and be provided with first clearance brush. This screw pump is directly driven to electric diving through the clearance activity of making a round trip from top to bottom of first clearance brush and second clearance brush in the in-process of recovering oil, not only can prevent that thick fluid from gathering at the oil inlet and stopping up, can also prevent that the filter screen of inlet department from influencing the normal work of oil recovery equipment on the shell because bond too much solid impurity to the whole pump body that has significantly reduced stops up the problem emergence, has ensured the efficiency of oil recovery work.
Description
Technical Field
The utility model relates to a screw pump technical field especially relates to an electric diving directly drives screw pump.
Background
With the continuous deepening of oil field development work in China, directional wells, horizontal wells and thick oil blocks become main sites of capacity in oil fields in China, and a conventional mechanical mining mode shows a lot of inadaptability. The oil field in China has the characteristics of ultra-deep and ultra-thick oil, the oil well is mainly lifted by taking a thick oil pump and an electric submersible pump as main artificial lifting modes after the blowout of the oil well is stopped, and a plurality of problems exist after the oil well is used: the pumping unit system has broken rod, rod falling and rod pipe deflection; the electric pump well has high well laying rate, and the effective production period of the oil well is greatly reduced due to the problems. Therefore, aiming at an oil well with certain liquid supply capacity, development of oil extraction equipment of the servo direct-drive submersible screw pump is carried out, so that the oil extraction level and the economic benefit of an oil field are improved, the mechanical extraction efficiency is improved, the steam injection and water injection amount is reduced, the oil extraction cost is saved, and the method has great significance. The electric submersible direct-drive screw pump has the common characteristics of the submersible pump and the screw pump, and can be applied to the following complex environments: the method comprises the steps of heavy oil recovery, oil and gas recovery of a heavy oil emulsification well, an inclined well, a horizontal well and a highly-inclined well, high-viscosity crude oil recovery, a low-flow well, high-abrasiveness crude oil recovery and high-viscosity asphaltene crude oil recovery.
However, in the existing electric submersible direct-drive screw pump technology, during the process of thick oil exploitation or high-viscosity crude oil exploitation, because thick oil contains a large amount of impurities and has high viscosity, oil often can be adhered with a large amount of solid impurities on a filter screen outside a pump shell and an oil inlet of the screw pump, and if the oil cannot be removed in time, the normal operation of oil extraction equipment can be influenced, and even the oil extraction equipment is blocked. In view of this, the utility model provides an electric dive directly drives screw pump is used for solving above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an electric submersible direct-drive screw pump.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an electric submersible direct-drive screw pump comprises a screw pump main body and a coupling fixedly connected with the screw pump main body, wherein a shell is fixedly arranged at the bottom of the coupling positioned at the outer side of the screw pump main body, liquid inlets are respectively arranged at two sides of the shell, filter screens are fixedly arranged in the liquid inlets, oil inlets are respectively arranged at two sides of the screw pump main body, a movable block is movably arranged between the oil inlets and the liquid inlets, a first cleaning brush is fixedly arranged at one side of the movable block close to the oil inlets, a second cleaning brush is arranged at one side of the movable block close to the filter screens at the liquid inlets, a guide rod is sleeved on the movable block in a sliding manner, the top end of the guide rod is fixedly connected to the bottom of the coupling, a lead screw is also connected to the movable block through thread transmission, the top end of the lead screw is rotatably arranged, the output shaft of the screw rod stepping motor rotates to extend to the inner side of the shell and is fixedly connected with a first sector gear, a second sector gear is fixedly sleeved on the screw rod, and the first sector gear is meshed with the second sector gear.
Preferably, the movable block is provided with a screw rod hole, and the screw rod penetrates through the screw rod hole and is in threaded connection with the screw rod hole.
Preferably, the movable block positioned on one side of the screw rod hole is provided with a guide hole, the guide rod penetrates through the guide hole in a sliding manner, and the screw rod and the guide rod are arranged in parallel along the vertical direction.
Preferably, first clearance brush and oil inlet assorted clearance, second clearance brush and the filter screen assorted clearance of inlet port department.
Preferably, the top end of the screw rod is rotatably connected with a rotating seat, and the rotating seat is fixedly connected to the bottom of the coupler.
Preferably, a bearing hole is formed in the inner wall of one side, close to the first sector gear, of the mounting cavity, a sealing bearing is arranged in the bearing hole, and an output shaft of the lead screw stepping motor is installed on the sealing bearing in a sealing and rotating mode.
Compared with the prior art, the beneficial effects of the utility model are that:
in the utility model, the screw rod stepping motor is utilized to drive the first sector gear and the second sector gear to rotate, so as to drive the screw rod to rotate, the screw rod rotates relative to the screw rod hole on the movable block, meanwhile, the movable block is matched with the guide rod in a sliding and guiding way through the guide hole, so that the movable block can carry out up-and-down thread transmission on the screw rod through the screw rod hole, the movable block drives the first cleaning brush and the second cleaning brush to move back and forth simultaneously when moving up and down, thus, the oil inlet of the screw rod pump main body can be cleaned up and down in a reciprocating way through the first cleaning brush, so as to prevent viscous oil from gathering at the oil inlet to block, and meanwhile, the second cleaning brush can be utilized to clean up and down in a reciprocating way on the filter screen at the liquid inlet on the shell, thus, the normal work of the oil extraction equipment can be prevented from being influenced by the bonding of excessive solid, thereby greatly reducing the problem of the blockage of the whole pump body.
To sum up, the utility model discloses in the clearance activity that an electric diving directly drives screw pump that provides, make a round trip about the in-process of recovering oil through first clearance brush and second clearance brush, not only can prevent that thick fluid from gathering at the oil inlet and stopping up, can also prevent that the filter screen of inlet department from influencing the normal work of oil recovery equipment owing to bond too much solid impurity on the shell to the whole pump body that has significantly reduced stops up the problem takes place, has ensured the efficiency of oil recovery work.
Drawings
Fig. 1 is a schematic structural view of an electric submersible direct-drive screw pump provided by the present invention;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1 according to the present invention;
FIG. 3 is an enlarged schematic view of a portion B of FIG. 1 according to the present invention;
fig. 4 is a schematic structural view of the middle movable block, the screw rod hole and the guide hole of the present invention.
In the figure: 1 screw pump main part, 101 oil inlets, 2 couplers, 3 shells, 301 liquid inlets, 302 filter screens, 303 installation cavities, 4 screw rod stepping motors, 5 first sector gears, 6 second sector gears, 7 sealing bearings, 8 screw rods, 9 guide rods, 10 rotating seats, 11 movable blocks, 12 first cleaning brushes, 13 second cleaning brushes, 14 screw rod holes and 15 guide holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, an electric submersible direct-drive screw pump comprises a screw pump body 1 and a coupling 2 fixedly connected with the screw pump body 1, wherein a shell 3 is fixedly arranged at the bottom of the coupling 2 outside the screw pump body 1, liquid inlets 301 are respectively arranged at two sides of the shell 3, a filter screen 302 is fixedly arranged in the liquid inlets 301, oil inlets 101 are respectively arranged at two sides of the screw pump body 1, a movable block 11 is movably arranged between the oil inlets 101 and the liquid inlets 301, a first cleaning brush 12 is fixedly arranged at one side of the movable block 11 close to the oil inlets 101, a second cleaning brush 13 is arranged at one side of the movable block 11 close to the filter screen 302 at the liquid inlets 301, a guide rod 9 is slidably sleeved on the movable block 11, the top end of the guide rod 9 is fixedly connected with the bottom of the coupling 2, a lead screw 8 is further connected on the movable block 11 through thread transmission, and the, be located and be equipped with installation cavity 303 on the shell 3 of inlet 301 top, fixed mounting has lead screw step motor 4 in installation cavity 303, and lead screw step motor 4's output shaft rotates and extends to the inboard of shell 3 and the first sector gear 5 of fixedly connected with, and the fixed second sector gear 6 that cup joints on the lead screw 8, and first sector gear 5 meshes with second sector gear 6 mutually. The utility model provides a pair of electric diving directly drives screw pump, the clearance activity of making a round trip from top to bottom through first clearance brush 12 and second clearance brush 13 in the in-process of recovering oil not only can prevent that thick fluid from gathering at oil inlet 101 and stopping up, can also prevent that filter screen 302 of enterprising liquid mouth 301 department of shell 3 from influencing the normal work of oil recovery equipment because bond too much solid impurity to the whole pump body jam's that has significantly reduced problem takes place, has ensured the efficiency of oil recovery work.
Specifically, a screw rod hole 14 is formed in the movable block 11, and the screw rod 8 penetrates through the screw rod hole 14 and is in threaded connection with the screw rod hole 14.
Specifically, a guide hole 15 is formed in the movable block 11 on one side of the screw hole 14, the guide rod 9 penetrates through the guide hole 15 in a sliding manner, and the screw 8 and the guide rod 9 are both arranged in parallel in the vertical direction.
Specifically, the first cleaning brush 12 is matched with the oil inlet 101 for cleaning, and the second cleaning brush 13 is matched with the filter screen 302 at the liquid inlet 301 for cleaning.
Specifically, the top end of the screw rod 8 is rotatably connected with a rotating seat 10, and the rotating seat 10 is fixedly connected to the bottom of the coupler 2.
Specifically, a bearing hole is formed in the inner wall of one side, close to the first sector gear 5, of the mounting cavity 303, a sealing bearing 7 is arranged in the bearing hole, and an output shaft of the lead screw stepping motor 4 is mounted on the sealing bearing 7 in a sealing and rotating mode.
The utility model provides a pair of electric submersible direct drive screw pump, can prevent to glue thick fluid gathering at oil inlet 101 and the filter screen 302 of the last inlet 301 department of shell 3 at the in-process of oil recovery and influence the emergence of normal work or even jam problem, utilize lead screw step motor 4's output shaft to drive first sector gear 5 rotatory promptly, first sector gear 5 meshes the transmission with second sector gear 6 when rotatory, and then drive lead screw 8 and rotate, lead screw 8 rotates with lead screw hole 14 on the movable block 11 relatively when rotating, simultaneously the movable block 11 still passes through guide hole 15 and guide arm 9 sliding guide cooperation, when lead screw 8 rotates like this, can change the rotary motion of lead screw 8 into the linear motion of movable block 11, can make the movable block 11 pass through lead screw hole 14 and carry out the upper and lower screw thread transmission on lead screw 8, the movable block 11 drives first cleaning brush 12 again when reciprocating, Second clearance brush 13 reciprocates back and forth simultaneously, can carry out reciprocal clearance from top to bottom to the oil inlet 101 of screw pump main part 1 through first clearance brush 12 like this, in order to prevent thick fluid gathering at oil inlet 101 and jam, utilize second clearance brush 13 to carry out reciprocal clearance from top to bottom to the filter screen 302 of the last inlet 301 department of shell 3 simultaneously, can prevent like this again that the filter screen 302 of the last inlet 301 department of shell 3 from influencing the normal work of oil recovery equipment owing to bond too much solid impurity, thereby the whole pump body jam's that has significantly reduced problem takes place.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. An electric submersible direct-drive screw pump is characterized by comprising a screw pump main body (1) and a coupling (2) fixedly connected with the screw pump main body (1), wherein a shell (3) is fixedly arranged at the bottom of the coupling (2) positioned at the outer side of the screw pump main body (1), both sides of the shell (3) are respectively provided with a liquid inlet (301), a filter screen (302) is fixedly arranged in the liquid inlet (301), both sides of the screw pump main body (1) are respectively provided with an oil inlet (101), a movable block (11) is movably arranged between the oil inlet (101) and the liquid inlet (301), a first cleaning brush (12) is fixedly arranged at one side of the movable block (11) close to the oil inlet (101), a second cleaning brush (13) is arranged at one side of the movable block (11) close to the filter screen (302) at the liquid inlet (301), and a guide rod (9) is slidably sleeved, and the top fixed connection of guide arm (9) is in the bottom of shaft coupling (2), still be connected with lead screw (8) through screw thread transmission on movable block (11), and the top of lead screw (8) rotates the bottom of installing in shaft coupling (2), be located and be equipped with installation cavity (303) on shell (3) of inlet (301) top, fixed mounting has lead screw step motor (4) in installation cavity (303), the output shaft of lead screw step motor (4) rotates the inboard and the first sector gear (5) of fixedly connected with that extend to shell (3), fixed cup joint second sector gear (6) on lead screw (8), and first sector gear (5) mesh mutually with second sector gear (6).
2. The electric submersible direct-drive screw pump according to claim 1, wherein the movable block (11) is provided with a screw hole (14), and the screw (8) penetrates through the screw hole (14) and is in threaded connection with the screw hole (14).
3. The electric submersible direct-drive screw pump according to claim 2, wherein the movable block (11) positioned on one side of the screw hole (14) is provided with a guide hole (15), the guide rod (9) penetrates through the guide hole (15) in a sliding manner, and the screw rod (8) and the guide rod (9) are arranged in parallel along the vertical direction.
4. The electric submersible direct-drive screw pump according to claim 1, wherein the first cleaning brush (12) is matched with the oil inlet (101) for cleaning, and the second cleaning brush (13) is matched with the filter screen (302) at the liquid inlet (301) for cleaning.
5. The electric submersible direct-drive screw pump according to claim 1, wherein the top end of the screw rod (8) is rotatably connected with a rotating seat (10), and the rotating seat (10) is fixedly connected to the bottom of the coupling (2).
6. The electric submersible direct-drive screw pump according to claim 1, wherein a bearing hole is formed in the inner wall of one side, close to the first sector gear (5), of the mounting cavity (303), a sealing bearing (7) is arranged in the bearing hole, and an output shaft of the screw rod stepping motor (4) is mounted on the sealing bearing (7) in a sealing and rotating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022449369.4U CN212155143U (en) | 2020-10-29 | 2020-10-29 | Electric submersible direct-drive screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022449369.4U CN212155143U (en) | 2020-10-29 | 2020-10-29 | Electric submersible direct-drive screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212155143U true CN212155143U (en) | 2020-12-15 |
Family
ID=73700880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022449369.4U Active CN212155143U (en) | 2020-10-29 | 2020-10-29 | Electric submersible direct-drive screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212155143U (en) |
-
2020
- 2020-10-29 CN CN202022449369.4U patent/CN212155143U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An electric submersible direct drive screw pump Effective date of registration: 20220215 Granted publication date: 20201215 Pledgee: Dongying laishang Village Bank Co.,Ltd. Xindian sub branch Pledgor: Dongying fengruntong Technology Development Co.,Ltd. Registration number: Y2022980001563 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230214 Granted publication date: 20201215 Pledgee: Dongying laishang Village Bank Co.,Ltd. Xindian sub branch Pledgor: Dongying fengruntong Technology Development Co.,Ltd. Registration number: Y2022980001563 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An electric submersible direct-drive screw pump Effective date of registration: 20230217 Granted publication date: 20201215 Pledgee: Dongying laishang Village Bank Co.,Ltd. Xindian sub branch Pledgor: Dongying fengruntong Technology Development Co.,Ltd. Registration number: Y2023980032884 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20201215 Pledgee: Dongying laishang Village Bank Co.,Ltd. Xindian sub branch Pledgor: Dongying fengruntong Technology Development Co.,Ltd. Registration number: Y2023980032884 |