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CN-120613886-B - High-speed motor for compression and expansion integrated machine

CN120613886BCN 120613886 BCN120613886 BCN 120613886BCN-120613886-B

Abstract

The application relates to a high-speed motor for a compression-expansion integrated machine, which is applied to the related technical field of motors, bearing water cooling channels can be arranged at two ends of the motor at the same time, and the two water cooling channels can be connected in series, so that cooling liquid can circularly flow at two ends of extremely cold and extremely hot, the cooling liquid can realize internal circulation, on one hand, the temperature difference at two sides can be balanced, the adverse effect caused by the extreme of the working condition of the motor is reduced, and on the other hand, compared with the prior art, the external circulation type cooling fluid is adopted to dissipate heat completely, the self-cooling capacity is utilized to enable the cooling fluid to recover to be cooled, the cost input of refrigerating the cooling fluid on one side of extremely hot can be effectively reduced, in addition, under the arrangement of the movable semi-parting strips, the self-circulation cooling medium can be disturbed, the heat exchange is quickened, and the heat and the cooling capacity on two sides can be directly conveyed to the other side, so that the cooling effect is better.

Inventors

  • ZHANG CHAO
  • HU LIANGBING
  • YANG ZHI
  • REN HAOYUAN

Assignees

  • 超昇速科技(无锡)有限公司

Dates

Publication Date
20260508
Application Date
20250506

Claims (9)

  1. 1. The high-speed motor for the compression and expansion integrated machine is characterized by comprising a central shaft lever (15), a stator fixedly connected to the outside of the central shaft lever (15) and a double-layer shell fixedly sleeved outside the stator, wherein a controller is arranged outside the double-layer shell, the double-layer shell comprises an outer shell (12) and an outer shell (11) fixedly sleeved in the middle of the outer end of the outer shell (12), two ends of the double-layer shell are fixedly connected with a hot end cover (131) and a cold end cover (132) through bolts respectively, the two ends of the double-layer shell are movably sleeved outside the central shaft lever (15) through bearings, the outer ends of the hot end cover (131) and the cold end cover (132) are respectively connected with a gland (14) through bolts, and the gland (14) is also movably sleeved outside the central shaft lever (15); The middle part of the outer casing (12) is provided with a circulation cavity (101), the circulation cavity (101) is internally provided with an adherence circulation channel, bearing cooling channels are respectively arranged in the hot end cover (131) and the cold end cover (132), the two bearing cooling channels are communicated with the adherence circulation channel, the adherence circulation channel comprises a whole division bar (102) fixedly connected between the left inner wall and the right inner wall of the circulation cavity (101) and two groups of half division bars (103) respectively arranged on the inner wall of the circulation cavity (101), the two adjacent half division bars (103) are distributed in a mutually staggered way, the outer end of the outer casing (11) is fixedly connected with a connecting seat, the connecting seat is characterized in that the outer end of the connecting seat is fixedly connected with a water inlet pipe (21) and a water outlet pipe (22), the whole partition bar (102) is positioned between the water inlet pipe (21) and the water outlet pipe (22), a hot inlet (203) and a hot outlet (204) are respectively cut into the left side inner wall of the circulating cavity (101), a cold inlet (201) and a cold outlet (202) are respectively cut into the right side of the circulating cavity (101), the cold inlet (201) and the hot inlet (203), the cold outlet (202) and the hot outlet (204) are respectively positioned on two sides of the whole partition bar (102), and the bearing cooling channel comprises a hollow heat dissipation ring (32) positioned inside an inner ring of the hot end cover (131), A water inlet channel (31) and a water outlet channel (33) which are respectively cut in the hot end cover (131), wherein the hollow heat dissipation ring (32) is sleeved outside the bearing, the water inlet channel (31) and the water outlet channel (33) are respectively communicated with the cold inlet (201) and the cold outlet (202), and the water inlet channel (31) and the water outlet channel (33) of the other bearing cooling channel are respectively communicated with the hot inlet (203) and the hot outlet (204); The utility model discloses a water inlet pipe, including inlet pipe (21), drain pipe (22), solenoid valve, miniature water pump, temperature sensor is all installed in outer end and medium source between inlet pipe (21) and drain pipe (22), all fixed intercommunication has the drain pipe between outer end and the medium source, still be connected with filter (4) through the pipeline between inlet pipe (21) and the drain pipe (22), solenoid valve and miniature water pump are all installed to pipeline and drain pipe, temperature sensor is all installed in cold import (201), cold export (202), hot import (203), hot export (204) and drain pipe (22) department, temperature sensor, solenoid valve and miniature water pump all are with controller signal connection.
  2. 2. A high speed motor for a compression expansion integrated machine according to claim 1, wherein said hot end cover (131) and cold end cover (132) are further perforated with feed holes extending to bearings.
  3. 3. A high-speed motor for a compression and expansion integrated machine according to claim 1, wherein the central shaft rod (15) is of a hollow structure, a shaft hole (301) is formed in the outer end, close to the hot end cover (131), of the central shaft rod (15), a plurality of evenly-distributed air guide pipes (302) are fixedly inlaid on the hollow heat dissipation ring (32), a plurality of evenly-distributed air dissipation holes (303) are formed in the outer end, close to the hot end cover (131), of the outer shell (12), and the shaft hole (301), the plurality of air guide pipes (302) and the plurality of air dissipation holes (303) are mutually communicated.
  4. 4. A high-speed motor for a compression-expansion integrated machine according to claim 1, wherein a direction-changing filter unit is arranged inside the filter (4) through an electric rotating shaft, and comprises a partition plate (42) coaxial with the filter (4), a semi-cylindrical pipe (41) fixedly connected to the outer end of the partition plate (42) and a filter element (43) arranged in the semi-cylindrical pipe (41).
  5. 5. A high-speed motor for a compression-expansion integrated machine according to claim 4, wherein the connection of said pipe and the filter (4) is not coaxial with the filter (4) and the diameter of the mouth of the pipe is smaller than the radius of the semi-cylindrical tube (41).
  6. 6. A high-speed motor for a compression and expansion integrated machine according to claim 1, wherein an outer magnetic ring (5) is arranged outside an outer casing (12) through an electric sliding rail sliding sleeve, the transverse sliding stroke of the outer magnetic ring (5) is positioned in the outer casing (12), and the staggered overlapping length of two adjacent semi-parting strips (103) is not less than 1/2 of the length of the semi-parting strips (103).
  7. 7. The high-speed motor for a compression and expansion integrated machine according to claim 6, wherein the outer magnetic ring (5) is made of electromagnetic materials, the half parting strips (103) are slidably connected with the outer wall of the cylindrical surface of the circulating cavity (101), the half parting strips (103) are made of magnetic materials, and the radial outward end faces of the two groups of half parting strips (103) are opposite in magnetic poles.
  8. 8. The high-speed motor for the compression and expansion integrated machine according to claim 6, wherein the outer magnetic ring (5) is made of magnetic materials, two groups of the semi-parting strips (103) are fixedly connected with the left inner wall and the right inner wall of the circulating cavity (101) respectively, the semi-parting strips (103) are of hollow structures, a heat transporting core (6) attached to the inner wall of the hollow semi-parting strips (103) is placed inside the hollow semi-parting strips (103), and heat conducting oil is filled in the semi-parting strips (103) in a saturated mode.
  9. 9. The high-speed motor for the compression and expansion integrated machine according to claim 8, wherein the oil grooves (601) are cut on the end surfaces of the heat transporting core (6) attached to the semi-parting strips (103), and the length of the heat transporting core (6) is not more than 1/3 of the length of the semi-parting strips (103).

Description

High-speed motor for compression and expansion integrated machine Technical Field The invention relates to a high-speed motor for a compression and expansion integrated machine, in particular to a high-speed motor for a compression and expansion integrated machine, which is applied to the technical field of motor related. Background The compression and expansion integrated machine omits transmission mechanisms such as a coupler, a gear box and the like by integrating the compressor and the expander on the same rotor, simplifies the configuration of a host machine and improves the transmission efficiency, and meanwhile, the rotating part is integrated in the same host machine shell, only has static seal to the outside, no dynamic seal, and improves the sealing reliability of the host machine. Compared with the traditional centrifugal compressor or turbine expander, the centrifugal compressor has outstanding advantages in aspects of improving power density, running reliability and the like. Because the compressor and the expander are integrated on the same rotor, the working conditions at two ends of the rotor of the motor are extremely cold at one end and extremely hot at the other end, so that the heat distribution at two ends of the motor is extremely uneven, the service life of the motor is easy to influence, the specification of Chinese patent with the publication number of CN119393196A discloses a compression and expansion integrated machine, an interlayer is designed at the outer side of a motor section shell 12, cooling fluid is introduced into the interlayer, and therefore the motor section shell and a motor stator are cooled, but the cooling fluid needs extra refrigeration cost, and the cooling cost is higher. The specification of chinese patent publication No. CN118148943a discloses a compression-expansion integrated machine and a control method thereof, which introduces a part of the expanded refrigerant into the third sub-cavity to cool the driving assembly, so that an additional motor cooling device can be omitted, the mechanical structure is simplified, and the occupied space of the compression-expansion integrated machine is reduced, but the part of refrigerant needs to be utilized, so that the expected refrigerating capacity is lost, the usage amount of the refrigerant exceeds the expected value, and the cooling cost is increased. Disclosure of Invention Aiming at the prior art, the invention aims to solve the technical problem that the existing mode for balancing the temperatures at two ends of the motor is high in cost. In order to solve the problems, the invention provides a high-speed motor for a compression and expansion integrated machine, which comprises a central shaft rod, a stator fixedly connected to the outside of the central shaft rod and a double-layer shell fixedly sleeved outside the stator, wherein a controller is arranged outside the double-layer shell; The middle part of the outer shell is provided with a circulating cavity, the inside of the circulating cavity is provided with an adherence circulating channel, the inside of the hot end cover and the inside of the cold end cover are respectively provided with a bearing cooling channel, the two bearing cooling channels are respectively communicated with the adherence circulating channel, each adherence circulating channel comprises a whole division bar fixedly connected between the left inner wall and the right inner wall of the circulating cavity and two groups of half division bars respectively arranged on the inner wall of the circulating cavity, the adjacent two half division bars are distributed in a staggered manner, the outer end of the outer shell is fixedly connected with a connecting seat, the outer end of the connecting seat is fixedly connected with a water inlet pipe and a water outlet pipe, the whole division bars are positioned between the water inlet pipe and the water outlet pipe, the left inner wall of the circulating cavity is respectively provided with a hot inlet and a hot outlet, the right side of the circulating cavity is respectively provided with a cold inlet and a cold outlet, the cold inlet and the hot outlet are respectively positioned at two sides of the whole division bars, each bearing cooling channel comprises a hollow heat dissipation ring positioned inside the inner ring of the hot end cover, a water inlet channel and a water outlet channel respectively cut inside the hot end cover are respectively sleeved outside the bearing, the water inlet channel and the water outlet channel are respectively communicated with the cold inlet and the hot outlet respectively; the outer ends of the water inlet pipe and the water outlet pipe are fixedly communicated with the medium source, the water inlet pipe and the water outlet pipe are also connected with a filter through a pipeline, the pipeline and the water inlet pipe are provided with an electromagnetic valve and a miniature water pump, and the cold i