CN117846853A - Turbine power generation device for petroleum drilling - Google Patents
Turbine power generation device for petroleum drilling Download PDFInfo
- Publication number
- CN117846853A CN117846853A CN202410092592.8A CN202410092592A CN117846853A CN 117846853 A CN117846853 A CN 117846853A CN 202410092592 A CN202410092592 A CN 202410092592A CN 117846853 A CN117846853 A CN 117846853A
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- bearing stator
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- pipeline
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- 238000005553 drilling Methods 0.000 title claims abstract description 27
- 239000003208 petroleum Substances 0.000 title claims abstract description 18
- 238000010248 power generation Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 238000009434 installation Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 12
- 239000010720 hydraulic oil Substances 0.000 abstract description 9
- 239000007790 solid phase Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to the technical field of petroleum drilling, in particular to a turbine power generation device for petroleum drilling, which consists of four parts, namely a pipeline, an upper sealing assembly, a power generator assembly and a lower sealing assembly; the pipeline is cylindrical, and an upper sealing assembly, a generator assembly and a lower sealing assembly are arranged in the middle from top to bottom; the fluid generator in the pipeline impacts the impeller of the generator, and the impeller drives the permanent magnet on the turbine shaft to rotate at a high speed relative to the coil, so that electric energy is generated; the upper sealing assembly and the lower sealing assembly comprise radial and thrust bearing pairs, mechanical seals, pressure balance pistons, freely telescopic corrugated pipes and springs; the upper sealing assembly and the lower sealing assembly form a sealing cavity, hydraulic oil is filled in the sealing cavity, the pressure balance between the inside and the outside of the mechanical seal is realized through the pressure balance piston, and the upper corrugated pipe, the lower corrugated pipe, the upper spring and the lower spring which can freely stretch out and draw back not only isolate the motor assembly, the bearing pair and the fluid conveyed by the pipeline, but also ensure that the mechanical sealing plane is always tightly attached, and the sealing reliability is improved.
Description
Technical Field
The invention relates to the technical field of petroleum drilling, in particular to a turbine power generation device for petroleum drilling.
Background
In petroleum drilling, there are more and more downhole instruments and more measurement parameters, so the amount of power supply needed downhole is greater and greater. Currently, downhole tool power supply generally relies on downhole turbine generator power supply. Because of the structural characteristics of the central shaft turbine and the underground dynamic seal, the clearance between the turbine and the outer wall is small, the turbine is easy to block, the solid phase requirement in the fluid is high, the power of the generator is small, the fluid flow resistance is relatively large, the service life of the rotary dynamic seal is short, and the whole service life of the power generation device is short.
Aiming at the characteristics of small fluid passing clearance of the existing underground turbine generator and high solid phase requirement in a fluid medium, a large number of solid phase treatment devices such as a vibrating screen, a mud remover and the like are additionally arranged on the ground and underground systems, and drill rod filters are added into drill rods so as to reduce the influence of solid phase particles on a turbine, and sometimes the blockage of the underground drill rod filters causes the blockage of a liquid passage in the drill rod, thereby influencing normal construction. In addition, sometimes the stratum is lost, the large particle solid phase is required to enter the stratum along with drilling fluid, and the turbine of the generator becomes a hindrance.
Accordingly, a turbine power generation device for petroleum drilling has been proposed to solve the above-mentioned problems.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a turbine power generation device for petroleum drilling, which consists of four parts, namely a pipeline, an upper sealing assembly, a generator assembly and a lower sealing assembly; the pipeline is cylindrical and is a shell of the generator, and is fixedly connected with the drilling pipe column through threads or flanges, and an upper sealing assembly, a generator assembly and a lower sealing assembly are arranged in the middle from top to bottom; the upper sealing assembly consists of an upper radial bearing stator, an upper combined bearing rotor, an upper combined bearing stator, an upper spring, an upper corrugated pipe and an upper fixed block; the generator assembly consists of a coil, a turbine shaft, a permanent magnet and blades; the lower sealing assembly consists of a lower radial bearing stator, a lower combined bearing rotor, a lower fixing block, a lower spring and a lower corrugated pipe.
Preferentially, the coil is annular hollow, is arranged on the inner wall of a pipeline and is formed by winding enameled wires or insulated wires, the upper part of the coil is fixedly provided with an upper radial bearing stator, and the lower part of the coil is fixedly provided with a lower radial bearing stator; the outer circle of the turbine shaft is cylindrical, a plurality of groups of blades are designed in the outer circle of the turbine shaft, the blades are distributed in a radial and axial staggered mode, and a cylindrical permanent magnet is sleeved on the outer circle of the turbine shaft.
Preferentially, the upper radial bearing stator is in a stepped cylindrical shape, a wire package is fixedly arranged at the lower end of the upper radial bearing stator, the outer part of the upper radial bearing stator is fixedly arranged on the inner wall of a pipeline, and a first wear-resistant layer is arranged inside the upper radial bearing stator; the lower part of the upper combined bearing rotor is fixedly provided with a turbine shaft, the upper end surface and the outer surface are provided with a wear-resistant layer IV and a wear-resistant layer II, the upper part of the upper combined bearing rotor is provided with an upper combined bearing stator, and the upper part of the upper combined bearing rotor is in plane contact with the lower part of the upper combined bearing stator to form a sliding bearing pair; the upper combined bearing stator is of a stepped cylindrical shape, the lower end of the upper combined bearing stator is provided with an upper spring, the outer surface and the lower end surface of the upper combined bearing stator are provided with a third wear-resisting layer, the inner edge of the upper combined bearing stator is fixedly connected with the upper corrugated pipe, and the first wear-resisting layer on the outer surface of the upper combined bearing stator and the first wear-resisting layer on the inner surface of the upper radial bearing stator form a radial sliding bearing pair.
Preferentially, the lower radial bearing stator is in a stepped cylindrical shape, a wire package is fixedly arranged at the upper end of the lower radial bearing stator, the outer part of the lower radial bearing stator is fixedly arranged on the inner wall of a pipeline, and a wear-resistant layer seven is arranged inside the lower radial bearing stator; the upper part of the lower combined bearing rotor is fixedly provided with a turbine shaft, the lower end surface and the outer surface are provided with a wear-resistant layer five and a wear-resistant layer eight, the lower part of the lower combined bearing rotor is provided with a lower combined bearing stator, and the lower part of the lower combined bearing rotor is in plane contact with the upper part of the lower combined bearing stator to form a sliding bearing pair; the lower combined bearing stator is of a stepped cylindrical shape, the upper end of the lower combined bearing stator is provided with a lower spring, the outer surface and the upper end surface of the lower combined bearing stator are provided with a wear-resisting layer six, the inner edge of the lower combined bearing stator is fixedly connected with the lower corrugated pipe, and the wear-resisting layer of the outer surface of the lower combined bearing stator and the wear-resisting layer seven of the inner surface of the lower radial bearing stator form a radial sliding bearing pair.
Preferentially, the upper fixing block is cylindrical, the outer edge of the upper fixing block is fixedly arranged on the inner wall of the pipeline, an upper balance piston is arranged in the middle of the upper fixing block, a compression upper spring is arranged at the lower end of the upper fixing block, and an upper corrugated pipe is fixedly arranged at the inner edge of the upper fixing block; the upper corrugated pipe is in a corrugated cylindrical shape and made of flexible materials, and can freely stretch in the axial direction.
Preferentially, the upper balance piston is arranged in an upper pressure balance hole on the upper fixed block, the number of the upper balance piston is more than or equal to one, and the upper balance piston can freely move in the upper pressure balance hole and is sealed.
Preferentially, the upper fixing block is identical to the lower fixing block, the upper balance piston is identical to the lower balance piston, the upper spring is identical to the lower spring, the upper corrugated pipe is identical to the lower corrugated pipe in shape, the installation mode is identical, and the installation positions are symmetrical along the radial axis of the center of the generator assembly.
Preferentially, the wire of the wire package passes through the sealing wire plug, passes through the pipeline and is sealed; the oil filling nozzle is fixed on the wall of the pipeline and is positioned at a gap between the lower radial bearing stator and the lower fixed block.
The invention has the advantages that:
1. the power generation device adopts the shaftless turbine to improve the flow passage diameter of the center, can accommodate larger solid particles to pass through, avoids the blockage of drilling fluid passages, is suitable for temporary stratum plugging construction, allows plugging agents with larger particles to pass through, and improves the adaptability.
2. The mechanical sealing structure is adopted, the inside is filled with hydraulic oil, the upper fixing block and the lower fixing block are provided with pressure balance pistons, and due to the throttling effect of the turbine, pressure difference exists between the upper fixing block, the lower fixing block and the sealing cavity filled with the hydraulic oil, the pressure balance is kept by moving the balance pistons, a small amount of hydraulic oil flows out in the rotating process of the turbine to play a mechanical sealing role, and the failure of a packing dynamic sealing mode is avoided under the condition of absolute sealing pressure.
Drawings
FIG. 1 is a schematic diagram of a turbine power plant for oil drilling;
in the figure: the device comprises a coil 1, a turbine shaft 2, a permanent magnet 3, blades 4, a pipeline 5, a radial bearing stator 6, a wear-resistant layer 7, a combined bearing rotor 8, a wear-resistant layer 9, a combined bearing stator 10, a wear-resistant layer 11, a wear-resistant layer 12, a spring 13, a bellows 14, a fixed block 15, a lead 16, a sealing wire passing plug 17, an oil filling hole 18, a pressure balance hole 19, a balance piston 20, a radial bearing stator 21, a combined bearing stator 22, a wear-resistant layer 23, a wear-resistant layer 24, a combined bearing rotor 25, a fixed block 26, a spring 27, a bellows 28, a wear-resistant layer 29, a wear-resistant layer 30, a pressure balance hole 31, a balance piston 32, a sealing assembly 101, a generator assembly 102 and a sealing assembly 103.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1, a turbine power generation device for petroleum drilling is composed of four parts including a pipeline 5, an upper sealing assembly 101, a generator assembly 102 and a lower sealing assembly 103; the pipeline 5 is cylindrical and is a shell of a generator, is fixedly connected with a drilling string through threads or flanges, is provided with an upper sealing assembly 101, a generator assembly 102 and a lower sealing assembly 103 from top to bottom in the middle, is sequentially arranged at the center of the pipeline 5, is fixed on the inner wall, and is provided with a drilling fluid flow passage at the center; the upper sealing assembly 101 consists of an upper radial bearing stator 6, an upper combined bearing rotor 8, an upper combined bearing stator 10, an upper spring 13, an upper corrugated pipe 14 and an upper fixing block 15; the generator assembly 102 consists of a coil 1, a turbine shaft 2, a permanent magnet 3 and blades 4, wherein the turbine shaft 2 can drive the permanent magnet 3 and the blades 4 to rotate together relative to the coil 1 to generate a variable magnetic field, and electromotive force is generated in the coil 1; the lower sealing assembly 103 consists of a lower radial bearing stator 21, a lower combined bearing stator 22, a lower combined bearing rotor 25, a lower fixed block 26, a lower spring 27 and a lower corrugated pipe 28; the coil 1 is annular hollow, is arranged on the inner wall of the pipeline 5 and is formed by winding enameled wires or insulated wires, the upper part of the coil is fixedly provided with an upper radial bearing stator 6, and the lower part of the coil is fixedly provided with a lower radial bearing stator 21; the outer circle of the turbine shaft 2 is cylindrical, a plurality of groups of blades 4 are designed in the turbine shaft, the blades 4 are distributed in a radial and axial staggered manner, the blade distribution is beneficial to the utilization of fluid power, and larger rotating power is obtained under the same flow; the outside is equipped with cylindric permanent magnet 3 suit and is in the outer lane of turbine axle 2, and the impeller is fixed on the inner wall of magnetic shaft, and the turbine is shaftless turbine, allows the solid phase of bigger volume to pass through.
The upper radial bearing stator 6 is in a stepped cylindrical shape, the lower end of the upper radial bearing stator is fixedly provided with a wire package 1, the outer part of the upper radial bearing stator is fixedly arranged on the inner wall of the pipeline 5, and the inner part of the upper radial bearing stator 6 is provided with a wear-resistant layer I7; the lower part of the upper combined bearing rotor 8 is fixedly provided with a turbine shaft 2, the upper end surface and the outer surface are provided with a wear-resistant layer IV 12 and a wear-resistant layer II 9, the upper part is provided with an upper combined bearing stator 10, and the upper part of the upper combined bearing rotor 8 is in plane contact with the lower part of the upper combined bearing stator 10 to form a sliding bearing pair; the upper combined bearing stator 10 is in a stepped cylindrical shape, an upper spring 13 is arranged at the lower end of the upper combined bearing stator, a third wear-resisting layer 11 is arranged on the outer surface and the lower end surface of the upper combined bearing stator, the inner edge of the upper combined bearing stator is fixedly connected with an upper corrugated pipe 14, and a radial sliding bearing pair is formed by the wear-resisting layer on the outer surface of the upper combined bearing stator 10 and the first wear-resisting layer 7 on the inner surface of the upper radial bearing stator 6.
The lower radial bearing stator 21 is in a stepped cylindrical shape, the upper end of the lower radial bearing stator is fixedly provided with a wire package 1, the outer part of the lower radial bearing stator is fixedly arranged on the inner wall of the pipeline 5, and the inner part of the lower radial bearing stator 21 is provided with a wear-resistant layer seven 29; the upper part of the lower combined bearing rotor 25 is fixedly provided with a turbine shaft 2, the lower end surface and the outer surface are provided with a wear-resistant layer five 23 and a wear-resistant layer eight 30, the lower part of the lower combined bearing rotor 25 is provided with a lower combined bearing stator 22, the lower part of the lower combined bearing rotor 25 is in plane contact with the upper part of the lower combined bearing stator 22 to form a sliding bearing pair, and the plane contact plays a role in mechanical sealing; the lower combined bearing stator 22 is in a stepped cylindrical shape, the upper end of the lower combined bearing stator is provided with a lower spring 27, the outer surface and the upper end surface of the lower combined bearing stator are provided with a wear-resisting layer six 24, the inner edge of the lower combined bearing stator is fixedly connected with a lower corrugated pipe 28, and the wear-resisting layer on the outer surface of the lower combined bearing stator 22 and the wear-resisting layer seven 29 on the inner surface of the lower radial bearing stator 21 form a radial sliding bearing pair. The frictional resistance generated when the turbine shaft 2 rotates at a high speed relative to the spool 1 is reduced under the side effects of the radial and axial sliding bearings.
The upper fixing block 15 is cylindrical, the outer edge of the upper fixing block is fixedly arranged on the inner wall of the pipeline 5, the middle of the upper fixing block is provided with an upper balance piston 20, the lower end of the upper balance piston is provided with a compression upper spring 13, and the inner edge of the upper balance piston is fixedly provided with an upper corrugated pipe 14; the upper corrugated pipe 14 is in a corrugated cylindrical shape and made of flexible materials, can freely stretch out and draw back in the axial direction, balances internal pressure, compensates abrasion of a bearing pair and adjusts axial movement of the turbine shaft 2. The upper spring 13 and the lower spring 27 always attach the planes of the wear-resistant layers of the upper combined bearing stator and the lower combined bearing stator together through compression, and meanwhile, the upper corrugated pipe 14 and the lower corrugated pipe 28 play roles of axial expansion compensation and isolation of mixing of fluid media in the pipeline 5 and hydraulic oil in a sealing cavity.
The upper balance piston 20 is installed in the upper pressure balance hole 19 on the upper fixed block 15, the number of the upper balance piston can be one or more, the upper balance piston can freely move in the upper pressure balance hole 19, and the upper balance piston is sealed, and the pressure adjusting capability can be improved by increasing the number of the balance holes. The upper fixing block 15, the lower fixing block 26, the upper balance piston 20, the lower balance piston 32, the upper spring 13, the lower spring 27, the upper corrugated pipe 14, the lower corrugated pipe 28, the upper combined bearing stator 10, the lower combined bearing stator 22, the upper combined bearing rotor 8, the lower combined bearing rotor 25, the upper radial bearing stator 6, the lower radial bearing stator 21, the coil 1 and the turbine shaft 2 form a sealing cavity, the sealing cavity provides a relatively clean environment for the generator coil and the turbine shaft, the reliability of the generator is improved, and hydraulic oil in the sealing cavity provides good lubrication for a bearing pair.
The upper fixing block 15 and the lower fixing block 26, the upper balance piston 20 and the lower balance piston 32, the upper spring 13 and the lower spring 27, and the upper corrugated pipe 14 and the lower corrugated pipe 28 are identical in shape, identical in installation mode and symmetrical in installation position along the radial axis of the center of the generator assembly 102.
The wire of the wire package 1 passes through the pipeline through the sealing wire plug 17 and is sealed; the oil filling hole 18 is fixed on the wall of the pipeline 5 and is positioned at a gap between the lower radial bearing stator 21 and the lower fixed block 26.
The hydraulic oil is injected into the sealing cavity through the oil injection hole 18, the hydraulic oil, the upper balance piston 20 and the lower balance piston 32 form a pressure balance system, the pressure of a mechanical sealing interface is ensured to be basically balanced, meanwhile, the whole sealing cavity is filled with the hydraulic oil, the radial bearing pair and the axial bearing pair are fully lubricated, and the bearing rotation resistance is ensured to be small enough.
Working principle: in the petroleum drilling process, the invention is connected into a drilling pipe column, drilling fluid flows in from the upper part, the blades 4 are pushed to rotate by the blades 4 in the center, the blades 4 drive the turbine shaft 2, the turbine shaft 2 drives the permanent magnets 3 to rotate together, an alternating magnetic field is generated, the coil 1 in the alternating magnetic field generates electromotive force, and electric energy is output by a lead. When the turbine shaft 2 rotates, the bearing pairs consisting of the upper radial bearing stator 6, the lower radial bearing stator 21, the upper combined bearing stator 10, the lower combined bearing stator 22, the upper combined bearing rotor 8 and the lower combined bearing rotor 25 are lubricated by components, so that the turbine shaft 2 is supported to rotate rapidly, and friction loss is reduced. The upper corrugated pipe 14, the lower corrugated pipe 28, the upper spring 13 and the lower spring 27 provide enough pressure to ensure that the rotor 8 of the upper combined bearing and the rotor 25 of the lower combined bearing are always tightly attached to the stator 10 of the upper combined bearing and the stator 22 of the lower combined bearing, and the plane abrasion-resistant layer three 11, the abrasion-resistant layer four 12, the abrasion-resistant layer five 23 and the abrasion-resistant layer six 24 play the double roles of a bearing pair and a mechanical sealing pair.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The turbine power generation device for petroleum drilling is characterized by comprising a pipeline (5), an upper sealing assembly (101), a power generator assembly (102) and a lower sealing assembly (103);
the pipeline (5) is cylindrical and is a shell of a generator, is fixedly connected with a drilling string through threads or flanges, and is provided with an upper sealing assembly (101), a generator assembly (102) and a lower sealing assembly (103) from top to bottom in the middle;
the upper sealing assembly (101) consists of an upper radial bearing stator (6), an upper combined bearing rotor (8), an upper combined bearing stator (10), an upper spring (13), an upper corrugated pipe (14) and an upper fixed block (15);
the generator assembly (102) consists of a coil (1), a turbine shaft (2), a permanent magnet (3) and blades (4);
the lower sealing assembly (103) consists of a lower radial bearing stator (21), a lower combined bearing stator (22), a lower combined bearing rotor (25), a lower fixed block (26), a lower spring (27) and a lower corrugated pipe (28);
the coil (1) is annular hollow, is arranged on the inner wall of the pipeline (5) and is formed by winding enameled wires or insulated wires, the upper part of the coil is fixedly provided with an upper radial bearing stator (6), and the lower part of the coil is fixedly provided with a lower radial bearing stator (21);
the outer circle of the turbine shaft (2) is cylindrical, a plurality of groups of blades (4) are designed in the outer circle of the turbine shaft (2), the blades (4) are distributed in a radial and axial staggered mode, and cylindrical permanent magnets (3) are sleeved on the outer circle of the turbine shaft (2) outside the outer circle.
2. The turbine power generation device for petroleum drilling according to claim 1, wherein: the upper radial bearing stator (6) is in a stepped cylindrical shape, the lower end of the upper radial bearing stator is fixedly provided with a coil (1), the outer part of the coil is fixedly arranged on the inner wall of the pipeline (5), and the inner part of the upper radial bearing stator (6) is provided with a first wear-resistant layer (7);
the lower part of the upper combined bearing rotor (8) is fixedly provided with a turbine shaft (2), the upper end surface and the outer surface are provided with a wear-resistant layer IV (12) and a wear-resistant layer II (9), the upper part is provided with an upper combined bearing stator (10), and the upper part of the upper combined bearing rotor (8) is in plane contact with the lower part of the upper combined bearing stator (10) to form a sliding bearing pair;
the upper combined bearing stator (10) is of a stepped cylindrical shape, the lower end of the upper combined bearing stator is provided with an upper spring (13), the outer surface and the lower end surface of the upper combined bearing stator are provided with a third wear-resisting layer (11), the inner edge of the upper combined bearing stator is fixedly connected with an upper corrugated pipe (14), and the first wear-resisting layer (7) on the outer surface of the upper combined bearing stator (10) and the inner surface of the upper radial bearing stator (6) form a radial sliding bearing pair.
3. The turbine power generation device for petroleum drilling according to claim 1, wherein: the lower radial bearing stator (21) is in a stepped cylindrical shape, a coil (1) is fixedly arranged at the upper end of the lower radial bearing stator, the outer part of the coil is fixedly arranged on the inner wall of the pipeline (5), and a wear-resistant layer seven (29) is arranged in the lower radial bearing stator (21);
the upper part of the lower combined bearing rotor (25) is fixedly provided with a turbine shaft (2), the lower end surface and the outer surface are provided with a wear-resistant layer five (23), a wear-resistant layer eight (30), the lower part is provided with a lower combined bearing stator (22), and the lower part of the lower combined bearing rotor (25) is in plane contact with the upper part of the lower combined bearing stator (22) to form a sliding bearing pair;
the lower combined bearing stator (22) is of a stepped cylindrical shape, the upper end of the lower combined bearing stator is provided with a lower spring (27), the outer surface and the upper end surface of the lower combined bearing stator are provided with a wear-resisting layer six (24), the inner edge of the lower combined bearing stator is fixedly connected with a lower corrugated pipe (28), and the wear-resisting layer on the outer surface of the lower combined bearing stator (22) and the inner surface of the lower radial bearing stator (21) form a radial sliding bearing pair.
4. The turbine power generation device for petroleum drilling according to claim 1, wherein the upper fixing block (15) is cylindrical, the outer edge is fixedly installed with the inner wall of the pipeline (5), the middle is provided with an upper balance piston (20), the lower end is provided with a compression upper spring (13), and the inner edge is fixedly provided with an upper corrugated pipe (14);
the upper corrugated pipe (14) is in a corrugated cylindrical shape and made of flexible materials, and can freely stretch and retract in the axial direction.
5. The turbine generator for petroleum drilling according to claim 4, wherein the upper balance piston (20) is installed in an upper pressure balance hole (19) on the upper fixed block (15), and the number of the upper balance pistons is equal to or greater than one, and the upper balance piston can freely move in the upper pressure balance hole (19) and is sealed.
6. The turbine generator for petroleum drilling according to claim 1-5, wherein the upper fixing block (15) and the lower fixing block (26), the upper balance piston (20) and the lower balance piston (32), the upper spring (13) and the lower spring (27), the upper corrugated pipe (14) and the lower corrugated pipe (28) are identical in shape, the installation mode is identical, and the installation positions are symmetrical along the radial axis of the center of the generator assembly (102).
7. A turbine power plant for petroleum drilling according to claim 1, characterized in that the wire of the coil (1) passes through the pipe by means of a sealing plug (17) and is sealed;
the oil filling hole (18) is fixed on the wall of the pipeline (5) and is positioned at the gap between the lower radial bearing stator (21) and the lower fixed block (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410092592.8A CN117846853A (en) | 2024-01-23 | 2024-01-23 | Turbine power generation device for petroleum drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410092592.8A CN117846853A (en) | 2024-01-23 | 2024-01-23 | Turbine power generation device for petroleum drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117846853A true CN117846853A (en) | 2024-04-09 |
Family
ID=90532790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410092592.8A Pending CN117846853A (en) | 2024-01-23 | 2024-01-23 | Turbine power generation device for petroleum drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117846853A (en) |
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2024
- 2024-01-23 CN CN202410092592.8A patent/CN117846853A/en active Pending
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