High-power electric energy supply device

Abstract

The invention relates to the technical field of petroleum drilling underground testing instruments, in particular to a high-power electric energy supply device which comprises a flow dividing head, a protection cover, an upper protection shell, a lower protection shell and a supporting shaft, the flow dividing head, a vortex guide wheel and an impeller rotor are arranged at the left end of the device, and a winding set is arranged between the impeller rotor and the supporting shaft; the excitation set and the fixing ring are arranged at the right end of the impeller rotor, the permanent magnet core and the coil set are arranged at the right end of the fixing ring, the wire connecting shaft is arranged at the right end of the permanent magnet core, the multi-core connector and the compression ring are arranged at the right end of the wire connecting shaft, and the disc spring is arranged between the multi-core connector and the wire connecting shaft. According to the device, through the design of the vortex guide wheel and the impeller rotor, the electric energy conversion efficiency is improved, the reliability of wire connection is ensured through the multi-core connector and the compression ring, the connection stability is ensured through the continuous pressure provided by the disc spring, the electromagnetic conversion efficiency and reliability are improved, the power generation power is improved from 300 W to 1000 W, more geological parameter measurement short circuits can be hung, and the device is suitable for popularization and application. And multi-parameter measurement work is realized.

Description

Technical Field

[0001] This invention relates to the field of downhole testing instruments for oil drilling, and more particularly to a high-power power supply device. Background Technology

[0002] Rotary steerable drilling systems represent a major breakthrough in modern drilling technology. They organically combine drilling, logging, and reservoir engineering techniques, using real-time measurement and control to ensure the wellbore trajectory precisely penetrates the reservoir during drilling, thereby optimizing well location and improving production efficiency. The system's most significant feature is its ability to identify oil and gas layers in real-time during drilling and dynamically adjust based on geological and engineering parameters, achieving true geological steering. This technology not only improves drilling accuracy and efficiency but also reduces drilling costs and risks. As the functions of rotary steering systems continue to expand and their applications deepen, the demand for their power supply is also increasing. The 300W downhole power supply device used under the existing technology can hardly meet the system's needs, especially after short-circuiting azimuth resistivity, neutron density, azimuth gamma and acoustic waves, the total power consumption of the system increases significantly. When the system is used in conjunction with a high-speed pulse generator, the power gap is particularly significant, and the low power of the power supply device has become a bottleneck restricting the further development of the measurement while drilling system. Summary of the Invention

[0003] (a) Technical problems to be solved This invention provides a high-power power supply device to overcome the problem of insufficient power in existing downhole power supply devices.

[0004] (II) Technical Solution To achieve the above objectives, the present invention provides a high-power power supply device, comprising: a shunt head, a protective cover, an upper protective shell, a lower protective shell, and a support shaft; The diverter head is located at the left end, and a support shaft is located at the right end of the diverter head. The support shaft is embedded in the diverter head, and a friction-reducing ring is provided between the support shaft and the diverter head. The outer wall of the support shaft is fitted with a vortex guide wheel and an impeller rotor from left to right. A winding group is provided between the impeller rotor and the support shaft. A support shaft is provided at the right end of the support shaft. The outer walls of the vortex guide wheel and the impeller rotor are covered with protective covers. The right end of the support shaft is provided with an excitation group. The outer wall of the excitation group is covered with an upper protective shell. The left end of the upper protective shell is connected to the support shaft. The excitation group is provided with a fixing ring at the right end, and the fixing ring is connected to the right end of the upper protective shell; The right end of the fixed ring is provided with a permanent magnet core, the outer wall of the permanent magnet core is provided with a coil group, the right end of the permanent magnet core is provided with a wire connecting shaft, the wire connecting shaft is connected with a wire, and the outer wall of the coil group and the wire connecting shaft is covered with a lower protective shell. The lower protective shell is connected to the lower connector at its right end. The right end of the wire connecting shaft is embedded in the lower connector. The right end of the wire connecting shaft is provided with a multi-core connector and a compression ring. A disc spring is provided between the multi-core connector and the wire connecting shaft.

[0005] Preferably, the diverter head consists of two parts: a tapered structure on the left end and a hollow cylindrical structure on the right end.

[0006] Preferably, the support shaft is a cylindrical structure, and the friction-reducing ring is fitted onto the outer wall of the left end of the support shaft.

[0007] Preferably, the vortex guide wheel is a hollow cylindrical structure, with a plurality of blades evenly distributed around the outer wall of the hollow cylindrical structure, and a groove provided on the inner wall of the vortex guide wheel for preventing rotation between the guide wheel and the support shaft.

[0008] Preferably, the impeller rotor is a hollow cylindrical structure, and several sets of blades are evenly arranged axially on the outer wall of the impeller rotor. Each set of blades consists of several blades, and the several blades are evenly distributed circumferentially.

[0009] Preferably, the blades on the outer wall of the vortex guide wheel and the impeller rotor are both made of YG8 hard alloy, and the outer wall of the blades is coated with WC coating.

[0010] Preferably, a gap is provided between the impeller rotor and the support shaft, the gap being used to allow drilling fluid to pass through, thereby achieving lubrication and cooling of the impeller rotor.

[0011] Preferably, the coil group is cross-wound with the outer wall of the permanent magnet core.

[0012] Preferably, a sealing ring is provided between the upper protective shell and the fixing ring.

[0013] Preferably, a shock-absorbing ring is provided between the wire connecting shaft and the lower protective shell, and a plurality of through holes are evenly provided on the end face of the wire connecting shaft, the through holes being the passageways for the wires, and a groove is provided in the middle of the wire connecting shaft, the groove being used to connect the coil group and the multi-core connector.

[0014] Preferably, the left end of the lower connector is embedded in the lower protective shell. The lower connector is a hollow cylindrical structure. The outer diameter of the left end of the lower connector is smaller than the outer diameter of the right end. The right end of the lower connector is provided with a shoulder on the outer edge. A shoulder ring is provided between the lower connector and the lower protective shell.

[0015] Preferably, the disc spring is fitted onto the left end of the multi-core connector, and the disc spring is used to keep the multi-core connector in a compressed state during operation to ensure stable connection.

[0016] (III) Beneficial Effects This invention provides a high-power power supply device that effectively improves power conversion efficiency through the design of a vortex guide wheel and impeller rotor. The vortex guide wheel guides and optimizes fluid flow, improving the rotational efficiency of the impeller rotor and thus increasing the overall power output of the device. Key components such as the permanent magnet core and coil assembly utilize high-performance materials, improving electromagnetic conversion efficiency, reducing energy loss, and extending the device's service life. The device is designed with a protective cover, upper protective shell, and lower protective shell to effectively protect internal components. It also allows for easy disassembly and installation during maintenance and repair, improving maintenance efficiency. The multi-core connector and compression ring design ensure reliable wire connections, preventing power loss and safety hazards caused by loose connections. The disc spring design provides continuous pressure to ensure connection stability. This rational structural design and the application of high-performance materials improve power conversion efficiency and device reliability, increasing the generator's power output from the conventional 300W to 1000W. It allows for the connection of more geological parameter measurement short circuits, enabling the measurement of multiple parameters and stable operation of downhole instruments. Attached Figure Description

[0017] Figure 1 This diagram shows a structural schematic of a high-power power supply device according to the present invention. Figure 2 Show Figure 1 Schematic diagram of the sectional structure of the middle AA section; Figure 3 Show Figure 1 Schematic diagram of the cross-sectional structure of the middle BB; Figure 4 A schematic diagram of the impeller structure is shown; Figure 5 A schematic diagram of the conductor connection shaft structure is shown.

[0018] The components are as follows: 1: Diverter head; 2: Anti-friction ring; 3: Whirlpool guide wheel; 4: Support shaft; 5: Impeller rotor; 6: Winding assembly; 7: Protective cover; 8: Support shaft; 9: Upper protective shell; 10: Excitation assembly; 11: Fixing ring; 12: Sealing ring; 13: Lower protective shell; 14: Coil assembly; 15: Permanent magnet core; 16: Shock-absorbing ring; 17: Wire; 18: Wire connecting shaft; 19: Winding assembly; 20: Shoulder ring; 21: Lower connector; 22: Disc spring; 23: Multi-core connector; 24: Compression ring. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "inner," "outer," "top," and "bottom" are based on the orientations or positional relationships shown in the accompanying drawings. They are intended only to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the components referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] like Figure 1-5 As shown, the present invention provides a high-power power supply device, including: a shunt head 1, a protective cover 7, an upper protective shell 9, a lower protective shell 13, and a support shaft 4; like Figure 1 As shown, the diverter head 1 is located at the left end, and the right end of the diverter head 1 is provided with a support shaft 4. The diverter head 1 consists of two parts: the left end is a tapered streamline structure that can effectively divert drilling fluid and ensure that the liquid can smoothly enter the device; the right end is a hollow cylindrical structure. The diverter head is used to divert drilling fluid. The inner wall of the hollow cylindrical structure at the right end of the diverter head 1 is provided with an M27X1.5 thread. The left end of the support shaft 4 is embedded in the diverter head 1. A friction-reducing ring 2 is provided between the support shaft 4 and the diverter head 1 to reduce friction and wear between the diverter head 1 and the support shaft 4, thereby improving the service life and efficiency of the device. The support shaft 4 is a cylindrical structure and serves to connect and support the entire device. The friction-reducing ring 2 is fitted on the outer wall of the left end of the support shaft 4. From left to right, the outer wall of the support shaft 4 is fitted with a vortex guide wheel 3 and an impeller rotor 5. A winding assembly 6 is provided between the impeller rotor 5 and the support shaft 4. A support shaft 8 is provided at the right end of the support shaft 4. like Figure 2 As shown, the vortex guide wheel 3 is a hollow cylindrical structure. Several blades are evenly arranged on the outer wall of the hollow cylindrical structure. The inner wall of the vortex guide wheel 3 is provided with a groove, which is used to prevent rotation between the vortex guide wheel 3 and the support shaft 4, so as to ensure that the vortex guide wheel 3 remains stable during operation. The blades on the outer wall of the vortex guide wheel 3 and the impeller rotor 5 are both made of YG8 hard alloy. The outer wall of the blades is coated with WC coating to improve wear resistance and corrosion resistance. like Figure 3As shown, the impeller rotor 5 is a hollow cylindrical structure. Several sets of blades are evenly arranged on the outer wall of the impeller rotor 5. Each set of blades consists of several blades, which are evenly distributed circumferentially. There is a gap between the impeller rotor 5 and the support shaft 4. The gap is used to allow drilling fluid to pass through, thereby lubricating and cooling the impeller rotor 5, improving the operating efficiency of the impeller rotor 5, and extending its service life. like Figure 4 As shown, it should be noted that the vortex guide wheel 3 typically has 10 blades with a helix angle of 68°. This allows the vortex guide wheel 3 to effectively guide the drilling fluid from the front-end diverter head 1 into the device. Its special blade design also accelerates the flow rate of the drilling fluid. The impeller rotor typically has three sets of blades, each set consisting of six blades with a helix angle of 42°. This allows the impeller rotor 5 to rotate at high speed under the impact of the drilling fluid. When the drilling fluid impacts the first set of blades, it imparts an initial velocity V1 to the impeller rotor 5. When the drilling fluid impacts the second set of blades, the velocity of the impeller rotor 5 increases by V2. When the drilling fluid impacts the third set of blades, the velocity of the impeller rotor 5 further increases by V3. This step-by-step acceleration design allows the impeller rotor 5 to increase its speed more rapidly, thereby increasing the device's power generation capacity.

[0022] The vortex guide wheel 3 and the impeller rotor 5 are covered with a protective cover 7. The function of the protective cover 7 is to ensure the stable rotation of the blades and avoid instability caused by external environmental factors. At the same time, the protective cover 7 can effectively prevent erosion of the inner wall of the drill collar, thereby improving the overall service life of the device. The right end of the support shaft 8 is provided with an excitation group 10. The outer wall of the excitation group 10 is covered with an upper protective shell 9. The left end of the upper protective shell 9 is connected to the support shaft 8. The right end of the excitation group 10 is provided with a fixing ring 11 to ensure the stable position of the excitation group 10. The fixing ring 11 is connected to the right end of the upper protective shell 9. A sealing ring 12 is provided between the upper protective shell 9 and the fixing ring 11. The sealing ring 12 prevents external media such as drilling fluid from entering the device and affecting its normal operation. The right end of the fixing ring 11 is provided with a permanent magnet core 15. The wall is equipped with a coil group 14, which is made of multiple layers of pure copper wire wrapped in a cross-wound manner on the permanent magnet core 15, and can achieve 1500W AC output. The use of multiple layers of pure copper wire wrapped in a cross-wound manner can not only improve the conductivity of the coil group 14, but also enhance its mechanical strength and heat dissipation capacity. This design allows the coil group 14 to maintain a low temperature rise under high power output, thereby improving the overall efficiency and stability of the device. The permanent magnet core 15 is preferably made of a high temperature resistant material of 250℃ to ensure that it can still output power stably in high temperature environment, thereby improving the adaptability and reliability of the device. The right end of the permanent magnet core 15 is provided with a wire connecting shaft 18, which is connected to a wire 17. The outer wall of the coil group 14 and the wire connecting shaft 18 is covered with a lower protective shell 13. The lower protective shell 13 is connected to the lower connector 21 at the right end. The main function of the lower protective shell 13 is to protect the coil group 14 and the wire connecting shaft 18 from damage caused by the external environment. A shock-absorbing ring 16 is provided between the wire connecting shaft 18 and the lower protective shell 13 to reduce the impact of vibration on the device and improve its operational stability. The right end of the wire connecting shaft 18 is embedded in the lower connector 21. The right end of the wire connecting shaft 18 is provided with a multi-core connector 23 and a compression ring 24. A disc spring 22 is provided between the multi-core connector 23 and the wire connecting shaft 18. The disc spring 22 is sleeved on the left end of the multi-core connector 23. The disc spring 22 is used to keep the multi-core connector 23 in a compressed state when it is working, so as to ensure stable connection. The end face of the wire connecting shaft 18 is evenly provided with several through holes, which are passageways for the wire 17 so that the wire 17 can be smoothly led out from the inside of the device. The middle part of the wire connecting shaft 18 is provided with a groove, which is used to connect the coil group 14 and the multi-core connector 23, thereby realizing the transmission of electrical energy. The lower connector 21 is embedded in the lower protective shell 13 at its left end. The lower connector 21 is a hollow cylindrical structure. The outer diameter of the left end of the lower connector 21 is smaller than that of the right end. The right end of the lower connector 21 is provided with a shoulder on the outer edge, so that the lower connector 21 can be firmly connected to the lower protective shell 13 and can withstand a large axial force. A shoulder ring 20 is provided between the lower connector 21 and the lower protective shell 13 to further enhance the stability of the connection.

[0023] The following is a detailed description of the actual working scenario of a high-power power supply device.

[0024] In actual operation, this high-power power supply device needs to be assembled on-site as needed, connected to the interface of the downhole tool, and then inserted into the drill collar frame and lowered into the well. In actual operation, the drilling fluid first impacts the vortex guide wheel 3, causing it to rotate at high speed. The rotation of the vortex guide wheel 3 causes the drilling fluid to drive the impeller rotor 5 to rotate at high speed. The rotation of the impeller rotor 5 is transmitted to the excitation group 10 through the support shaft 8, causing the excitation group 10 to generate a magnetic field. At the same time, the permanent magnet core 15 and the coil group 14 interact to generate alternating current. To ensure the stable operation of the device, the protective cover 7 is used to protect the vortex guide wheel 3 and the impeller rotor 5 from the influence of the external environment. The upper protective shell 9 and the lower protective shell 13 are used to protect the excitation group 10 and the coil group 15 respectively, preventing damage from the external environment. The shock absorption ring 16 is used to reduce the impact of vibration on the device and improve its operational stability. The wire connecting shaft 18 is used to connect the coil group 14 and the multi-core connector 23 to realize the transmission of electrical energy. The multi-core connector 23 and the compression ring 24 are used to ensure the stability of the connection. The lower connector 21 is used to connect the device to other equipment or systems. Its structural design can ensure that the connection is firm and reliable, can withstand large axial forces, and has good anti-loosening performance.

[0025] It is understood that the various embodiments mentioned above in this invention can be combined with each other to form combined embodiments without violating the principle and logic. Due to space limitations, this invention will not elaborate further.

[0026] Those skilled in the art will understand that, in the above-described method of the specific implementation, the order in which each step is written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0027] This invention provides a high-power power supply device that, through the design of the vortex guide wheel 3 and impeller rotor 5, effectively improves the power conversion efficiency. The vortex guide wheel 3 guides and optimizes fluid flow, improving the rotational efficiency of the impeller rotor 5, thereby increasing the overall power output of the device. Key components such as the permanent magnet core 15 and coil assembly 14 utilize high-performance materials, improving electromagnetic conversion efficiency, reducing energy loss, and extending the device's service life. The device is designed with a protective cover 7, an upper protective shell 9, and a lower protective shell 13, effectively protecting internal components and facilitating maintenance and repair. The device's design, featuring a multi-core connector 23 and compression ring 24, ensures reliable connection of the wire 17, preventing power loss and safety hazards caused by loose connections. The disc spring 22 provides continuous pressure to ensure connection stability. This combination of rational structural design and the application of high-performance materials improves power conversion efficiency and device reliability, increasing the generator's output power from the conventional 300W to 1000W. It can also connect to more geological parameter measurement short circuits, enabling the measurement of multiple parameters and stable operation of downhole instruments.

[0028] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A high-power electrical energy supply device, characterized in that, include: The components include a splitter head (1), a protective cover (7), an upper protective shell (9), a lower protective shell (13), and a support shaft (4). The diverter head (1) is located at the left end, and the right end of the diverter head (1) is provided with a support shaft (4). The support shaft (4) is embedded in the diverter head (1), and a friction-reducing ring (2) is provided between the support shaft (4) and the diverter head (1). The outer wall of the support shaft (4) is fitted with a vortex guide wheel (3) and an impeller rotor (5) from left to right. A winding group (6) is provided between the impeller rotor (5) and the support shaft (4). A support shaft (8) is provided at the right end of the support shaft (4). The outer walls of the vortex guide wheel (3) and the impeller rotor (5) are covered with protective covers (7). The right end of the support shaft (8) is provided with an excitation group (10). The outer wall of the excitation group (10) is covered with an upper protective shell (9). The left end of the upper protective shell (9) is connected to the support shaft (8). The excitation group (10) is provided with a fixing ring (11) at the right end, and the fixing ring (11) is connected to the right end of the upper protective shell (9); The right end of the fixed ring (11) is provided with a permanent magnet core (15), the outer wall of the permanent magnet core (15) is provided with a coil group (14), the right end of the permanent magnet core (15) is provided with a wire connecting shaft (18), the wire connecting shaft (18) is connected with a wire (17), and the outer wall of the coil group (14) and the wire connecting shaft (18) is covered with a lower protective shell (13). The lower protective shell (13) is connected to the lower connector (21) at the right end. The wire connecting shaft (18) is embedded in the lower connector (21) at the right end. The wire connecting shaft (18) is provided with a multi-core connector (23) and a compression ring (24) at the right end. A disc spring (22) is provided between the multi-core connector (23) and the wire connecting shaft (18).

2. The high-power power supply device according to claim 1, characterized in that, The splitter head (1) consists of two parts: a tapered structure on the left and a hollow cylindrical structure on the right.

3. The high-power power supply device according to claim 1, characterized in that, The support shaft (4) is a cylindrical structure, and the friction-reducing ring (2) is sleeved on the outer wall of the left end of the support shaft (4).

4. The high-power power supply device according to claim 1, characterized in that, The vortex guide wheel (3) is a hollow cylindrical structure. The outer wall of the hollow cylindrical structure is uniformly provided with several blades. The inner wall of the vortex guide wheel (3) is provided with a groove, which is used to prevent rotation between the guide wheel and the support shaft (4).

5. The high-power power supply device according to claim 4, characterized in that, The impeller rotor (5) is a hollow cylindrical structure. Several sets of blades are evenly arranged on the outer wall of the impeller rotor (5) in the axial direction. Each set of blades consists of several blades, which are evenly distributed circumferentially.

6. The high-power power supply device according to claim 5, characterized in that, The blades on the outer walls of the vortex guide wheel (3) and the impeller rotor (5) are both made of YG8 hard alloy, and the outer walls of the blades are coated with WC coating.

7. The high-power power supply device according to claim 5, characterized in that, A gap is provided between the impeller rotor (5) and the support shaft (4) to allow drilling fluid to pass through, thereby lubricating and cooling the impeller rotor (5).

8. The high-power power supply device according to claim 1, characterized in that, The coil group (14) is cross-wound with the outer wall of the permanent magnet core (15).

9. The high-power power supply device according to claim 1, characterized in that, A sealing ring (12) is provided between the upper protective shell (9) and the fixing ring (11).

10. The high-power power supply device according to claim 1, characterized in that, A shock-absorbing ring (16) is provided between the wire connecting shaft (18) and the lower protective shell (13). Several through holes are evenly provided on the end face of the wire connecting shaft (18). The through holes are the passage for the wire (17). A groove is provided in the middle of the wire connecting shaft (18). The groove is used to connect the coil group (14) and the multi-core connector (23).

11. The high-power power supply device according to claim 1, characterized in that, The lower connector (21) is embedded in the lower protective shell (13) at its left end. The lower connector (21) is a hollow cylindrical structure. The outer diameter of the left end of the lower connector (21) is smaller than the outer diameter of the right end. The right end of the lower connector (21) is provided with a shoulder on the outer edge. A shoulder ring (20) is provided between the lower connector (21) and the lower protective shell (13).

12. The high-power power supply device according to claim 1, characterized in that, The disc spring (22) is fitted on the left end of the multi-core connector (23). The disc spring (22) is used to keep the multi-core connector (23) in a compressed state when it is working, so as to ensure stable connection.

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