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CN-121976904-A - High-power electric energy supply device

CN121976904ACN 121976904 ACN121976904 ACN 121976904ACN-121976904-A

Abstract

The invention relates to the technical field of downhole testing instruments for petroleum drilling, in particular to a high-power electric energy supply device which comprises a shunt head, a protective cover, an upper protective cover, a lower protective cover and a supporting shaft, wherein the left end of the device is provided with the shunt head, a vortex guide wheel and an impeller rotor, a winding group is arranged between the impeller rotor and the supporting shaft, the right end of the impeller rotor is provided with an excitation group and a fixed ring, the right end of the fixed ring is provided with a permanent magnet core body and a coil group, the right end of the permanent magnet core body is provided with a lead connecting shaft, the right end of the lead connecting shaft is provided with a multi-core connector and a compression ring, and a disc spring is arranged between the multi-core connector and the lead connecting shaft. The device improves the electric energy conversion efficiency through the design of the vortex guide wheel and the impeller rotor, ensures the reliability of wire connection by the multi-core connector and the compression ring, ensures the connection stability by the continuous pressure provided by the disc spring, improves the electromagnetic conversion efficiency and the reliability, improves the generation power 300W to 1000W, can be connected with more geological parameter measurement short circuits, and realizes multi-parameter measurement work.

Inventors

  • YANG ZHIJIAN
  • ZHAO HANQING
  • LI RUNQI
  • ZHANG XIN
  • ZHANG ZIYIN
  • WANG XIAOXU
  • ZHANG WEIWEI
  • PEI FEI

Assignees

  • 大庆钻探工程有限公司
  • 中国石油天然气集团有限公司

Dates

Publication Date
20260505
Application Date
20241025

Claims (12)

  1. 1. The high-power electric energy supply device is characterized by comprising a shunt head (1), a protective cover (7), an upper protective cover (9), a lower protective cover (13) and a support shaft (4); The split head (1) is arranged at the left end, the right end of the split head (1) is provided with a support shaft (4), the support shaft (4) is embedded into the split head (1), and an antifriction ring (2) is arranged between the support shaft (4) and the split head (1); the outer wall of the supporting shaft (4) is sleeved with a vortex guide wheel (3) and an impeller rotor (5) from left to right, a winding group (6) is arranged between the impeller rotor (5) and the supporting shaft (4), and the right end of the supporting shaft (4) is provided with a bearing shaft (8); The outer walls of the vortex guide wheel (3) and the impeller rotor (5) are sleeved with a protective cover (7), the right end of the bearing shaft (8) is provided with an excitation group (10), the outer wall of the excitation group (10) is sleeved with an upper protective cover (9), and the left end of the upper protective cover (9) is connected with the bearing shaft (8); The right end of the excitation group (10) is provided with a fixed ring (11), and the fixed ring (11) is connected with the right end of the upper protective shell (9); The right end of the fixed ring (11) is provided with a permanent magnet core body (15), the outer wall of the permanent magnet core body (15) is provided with a coil group (14), the right end of the permanent magnet core body (15) is provided with a wire connecting shaft (18), the wire connecting shaft (18) is connected with a wire (17), and the coil group (14) and the outer wall of the wire connecting shaft (18) are sleeved with a lower protective shell (13); The lower protection shell (13) right-hand member connects lower part connector (21), in wire connecting axle (18) right-hand member embedding lower part connector (21), wire connecting axle (18) right-hand member is equipped with multicore connector (23) and compression ring (24), be equipped with dish spring (22) between multicore connector (23) and wire connecting axle (18).
  2. 2. The high-power electric energy supply device according to claim 1, characterized in that the shunt head (1) is composed of two parts, the left end is a conical structure, and the right end is a hollow cylindrical structure.
  3. 3. The high-power electric energy supply device according to claim 1, wherein the support shaft (4) has a cylindrical structure, and the antifriction ring (2) is sleeved on the outer wall of the left end of the support shaft (4).
  4. 4. The high-power electric energy supply device according to claim 1, wherein the whirling guide wheel (3) is of a hollow cylindrical structure, a plurality of blades are uniformly arranged on the periphery of the outer wall of the hollow cylindrical structure, a clamping groove is formed in the inner wall of the whirling guide wheel (3), and the clamping groove is used for preventing rotation between the support shaft (4).
  5. 5. The high-power electric energy supply device according to claim 4, wherein the impeller rotor (5) is of a hollow cylindrical structure, a plurality of groups of blades are axially and uniformly arranged on the outer wall of the impeller rotor (5), each group of blades consists of a plurality of blades, and the plurality of blades are uniformly circumferentially distributed.
  6. 6. The high-power electric energy supply device according to claim 5, wherein the blades arranged on the outer walls of the vortex guide wheel (3) and the impeller rotor (5) are made of YG8 hard alloy, and the outer walls of the blades are coated with WC coatings.
  7. 7. High-power electric energy supply device according to claim 5, characterized in that a gap is provided between the impeller rotor (5) and the support shaft (4), said gap being intended to allow the passage of drilling fluid, effecting lubrication and cooling of the impeller rotor (5).
  8. 8. High power electric energy supply device according to claim 1, characterized in that the coil assembly (14) is wound crosswise to the outer wall of the permanent magnet core (15).
  9. 9. High-power electric energy supply device according to claim 1, characterized in that a sealing ring (12) is arranged between the upper protective shell (9) and the fixing ring (11).
  10. 10. The high-power electric energy supply device according to claim 1, characterized in that a damping ring (16) is arranged between the wire connecting shaft (18) and the lower protective shell (13), a plurality of through holes are uniformly formed in the end face of the wire connecting shaft (18), the through holes are passages of wires (17), a groove is formed in the middle of the wire connecting shaft (18), and the groove is used for connecting the coil group (14) and the multi-core connector (23).
  11. 11. The high-power electric energy supply device according to claim 1, wherein the left end of the lower connector (21) is embedded into the lower protective shell (13), the lower connector (21) is of a hollow cylindrical structure, the outer diameter of the left end of the lower connector (21) is smaller than that of the right end, an outer edge shoulder is arranged at the right end of the lower connector (21), and a shoulder ring (20) is arranged between the lower connector (21) and the lower protective shell (13).
  12. 12. The high-power electric energy supply device according to claim 1, wherein the disc spring (22) is sleeved at the left end of the multi-core connector (23), and the disc spring (22) is used for enabling the multi-core connector (23) to be in a compressed state when working, so that connection stability is ensured.

Description

High-power electric energy supply device Technical Field The invention relates to the technical field of downhole testing instruments for petroleum drilling, in particular to a high-power electric energy supply device. Background The rotary steering system is a major breakthrough of modern drilling technology, organically combines the drilling technology, the logging technology and the oil reservoir engineering technology, ensures that the well track in the drilling process can accurately pass through a reservoir through real-time measurement and control means, thereby optimizing the well position and improving the production efficiency. The technique not only improves the accuracy and efficiency of drilling, but also reduces the cost and risk of drilling; Along with the continuous expansion and the deep application of the functions of the rotary guiding system, the electric energy supply requirement is increased increasingly, the 300W underground electric energy supply device used in the prior art is difficult to meet the system requirement, and particularly after the short circuit of the azimuth resistivity, the neutron density, the azimuth gamma, the sound wave and the like is hung, the total power consumption of the system is greatly increased; when the system is matched with a high-speed pulser, the power gap is particularly remarkable, and the problem of low power of the electric energy supply device has become a bottleneck for restricting the further development of the measurement while drilling system. Disclosure of Invention First, the technical problem to be solved The invention provides a high-power electric energy supply device, which aims to solve the problem of insufficient power of an underground electric energy supply device in the prior art. (II) technical scheme In order to achieve the above purpose, the invention provides a high-power electric energy supply device, which comprises a shunt head, a protective cover, an upper protective cover, a lower protective cover and a support shaft; The split head is arranged at the left end, the right end of the split head is provided with a support shaft, the support shaft is embedded into the split head, and an antifriction ring is arranged between the support shaft and the split head; the outer wall of the supporting shaft is sleeved with a vortex guide wheel and an impeller rotor from left to right, a winding group is arranged between the impeller rotor and the supporting shaft, and the right end of the supporting shaft is provided with a bearing shaft; The outer walls of the vortex guide wheel and the impeller rotor are sleeved with a protective cover, the right end of the bearing shaft is provided with an excitation group, the outer wall of the excitation group is sleeved with an upper protective shell, and the left end of the upper protective shell is connected with the bearing shaft; The right end of the excitation group is provided with a fixed ring, and the fixed ring is connected with the right end of the upper protective shell; The right end of the fixed ring is provided with a permanent magnet core body, the outer wall of the permanent magnet core body is provided with a coil group, the right end of the permanent magnet core body is provided with a wire connecting shaft, the wire connecting shaft is connected with a wire, and the coil group and the outer wall of the wire connecting shaft are sleeved with a lower protective shell; the lower protective housing right-hand member connection lower part connector, in the wire connecting axle right-hand member embedding lower part connector, the wire connecting axle right-hand member is equipped with multicore connector and compression ring, be equipped with the dish spring between multicore connector and the wire connecting axle. Preferably, the split head consists of two parts, wherein the left end is of a conical structure, and the right end is of a hollow cylindrical structure. Preferably, the supporting shaft is of a cylindrical structure, and the antifriction ring is sleeved on the outer wall of the left end of the supporting shaft. Preferably, the whirling guide wheel is of a hollow cylindrical structure, a plurality of blades are uniformly arranged on the periphery of the outer wall of the hollow cylindrical structure, a clamping groove is formed in the inner wall of the whirling guide wheel, and the clamping groove is used for preventing rotation between the support shaft and the clamping groove. Preferably, the impeller rotor is of a hollow cylindrical structure, a plurality of groups of blades are axially and uniformly arranged on the outer wall of the impeller rotor, each group of blades consists of a plurality of blades, and the plurality of blades are uniformly circumferentially distributed. Preferably, the blades arranged on the outer walls of the vortex guide wheel and the impeller rotor are made of YG8 hard alloy, and WC coatings are coated on the outer walls of the blades. Pref