Integrated compact screw and reciprocating compressor unit equipment

Abstract

The invention discloses integrated compact screw and reciprocating compressor unit equipment, and belongs to the technical field of oil and gas field exploitation equipment, the integrated compact screw and reciprocating compressor unit equipment comprises a motor, and a mounting channel is formed in a rotor; the screw compressor is provided with a first compressor shaft, and the first compressor shaft is rotatably arranged at one end of the mounting channel in the axial direction; the reciprocating compressor is provided with a second compressor shaft, and the second compressor shaft is rotatably arranged at the other end of the mounting channel in the axial direction; the linkage device is arranged in the mounting channel and is suitable for connecting the rotor with the first compressor shaft and the second compressor shaft. According to the designed compressor unit equipment, the length size of the compressor unit equipment in the axial direction is small, so that the compressor unit equipment is more compact in structure, the installation space occupied by the compressor unit equipment is reduced, layout of other parts of oil and gas field exploitation equipment is facilitated, and meanwhile the size of the oil and gas field exploitation equipment can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of oil and gas field production equipment, and in particular relates to an integrated compact screw and reciprocating compressor unit. Background Art

[0002] In the relevant technologies, as major oil and gas fields in my country enter the late stage of production, the original high-yield and high-efficiency oil and gas wells gradually become low-yield and low-efficiency oil and gas wells, and the comprehensive development of low-permeability and ultra-low-permeability oil and gas reservoirs has led to an increasing number of low-yield and low-efficiency oil and gas wells; at the same time, due to the increasing attention paid to environmental protection, the oil and gas fields have an increasing demand for the recovery and treatment of low-pressure gas sources, such as the VOC treatment of volatile gas and flash gas in various storage tanks, the recovery of low-pressure cold air and flare gas, etc. The market demand for low-intake pressure boosting equipment is increasing.

[0003] Screw compressors have the advantages of low intake pressure, wide adjustable range and smooth operation. They are suitable for intake conditions below 0.3MPaG, especially close to normal pressure. However, the allowable exhaust pressure is usually below 2MPa, which cannot meet the pressure requirements of the external transmission pipeline network. Reciprocating compressors have the advantages of high efficiency, large pressure ratio, and strong adaptability to pressure and flow fluctuations. The working conditions are easy to adjust, there is no surge phenomenon, and the flow rate changes have little effect on efficiency. They are suitable for occasions with high exhaust pressure. However, when the intake pressure is lower than 50kPaG, it will cause problems such as the equipment compression cylinder is too large, the pressure ratio is too large, the number of compression stages is large, the size is large, and the performance is not easy to guarantee. It cannot meet the low-pressure or even negative pressure mining needs mentioned above.

[0004] In order to resolve this contradiction, most oil and gas fields currently use a combination of a screw compressor at the front end for low-pressure production and a reciprocating compressor at the back end for pressurized transportation for production operations.

[0005] In the prior art, the first drive motor is connected to the screw compressor and is suitable for driving the screw compressor, and the second drive motor is connected to the reciprocating compressor and is suitable for driving the reciprocating compressor. This arrangement results in a large integrated compressor assembly, which in turn results in a large oil and gas field production equipment and makes the layout of other components of the oil and gas field production equipment inconvenient. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an integrated compact screw and reciprocating compressor unit. The compressor unit designed according to the present invention has a small length dimension in the axial direction, which makes the structure of the compressor unit more compact, reduces the installation space occupied by the compressor unit, facilitates the layout of other components of the oil and gas field production equipment, and can reduce the volume of the oil and gas field production equipment.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides an integrated compact screw and reciprocating compressor unit device, comprising: a motor, a rotor of the motor being rotatably arranged in a stator, a mounting channel being formed in the rotor; a screw compressor, the screw compressor having a first compressor shaft, the first compressor shaft being rotatably arranged in the mounting channel and being located at one end of the mounting channel in the axial direction; a reciprocating compressor, the reciprocating compressor having a second compressor shaft, the second compressor shaft being rotatably arranged in the mounting channel and being located at the other end of the mounting channel in the axial direction; a linkage device, the linkage device being arranged in the mounting channel, the linkage device being suitable for connecting the rotor with the first compressor shaft and the second compressor shaft; wherein the linkage device is suitable for increasing the torque received by the first compressor shaft and the second compressor shaft from the rotor.

[0009] According to the integrated compact screw and reciprocating compressor unit equipment of the present invention, by accommodating at least a portion of the first compressor shaft and the second compressor shaft in the installation channel, and the first compressor shaft and the second compressor shaft are linked with the rotor through a linkage device in the installation channel, the axial length dimension of the compressor unit equipment is shortened, the structure of the compressor unit equipment is more compact, thereby reducing the installation space occupied by the compressor unit equipment, facilitating the layout of other components of the oil and gas field production equipment, and reducing the volume of the oil and gas field production equipment.

[0010] Further, the rotor includes: a first rotor and a second rotor, the first rotor and the second rotor are arranged at intervals in the stator; wherein the linkage device is arranged between the first rotor and the second rotor, the linkage device has a first input end and a first output end, the first input end is suitable for connecting to the first rotor, and the first output end is suitable for connecting to the first compressor shaft; the linkage device also has a second input end and a second output end, the second input end is suitable for connecting to the second rotor, and the second output end is suitable for connecting to the second compressor shaft.

[0011] Further, the linkage device includes: a fixed housing, the fixed housing is connected to the stator, and the fixed housing has an accommodating groove extending in the axial direction, and the inner circumferential wall of the accommodating groove is respectively provided with a first tooth portion and a second tooth portion at both ends in the axial direction; a first flexible wheel and a second flexible wheel, the first flexible wheel and the second flexible wheel are respectively configured as the first output end and the second output end, and the outer circumferential walls of the first flexible wheel and the second flexible wheel are respectively provided with a third tooth portion and a fourth tooth portion, the third tooth portion is suitable for cooperating with the first tooth portion, and the fourth tooth portion is suitable for cooperating with the second tooth portion; a first wave generator and a second wave generator, the first wave generator and the second wave generator are respectively configured as the first input end and the second input end, and the first wave generator and the second generator are respectively rotatably arranged in the first flexible wheel and the second flexible wheel; wherein the first wave generator is suitable for squeezing the first flexible wheel so that the first tooth portion is at least partially meshed with the third tooth portion, and the second wave generator is suitable for squeezing the second flexible wheel so that the second tooth portion is at least partially meshed with the fourth tooth portion.

[0012] Furthermore, the linkage device also includes: a partition plate, which is arranged in the fixed shell and is suitable for dividing the accommodating cavity into a first cavity and a second cavity, and the inner peripheral walls of the first cavity and the second cavity are respectively formed with the first tooth portion and the second tooth portion.

[0013] Furthermore, a first rotating groove is provided on the bottom wall of the first cavity, and the linkage device also includes: a first sliding bearing, which is rotatably arranged in the first rotating groove, and the first sliding bearing is respectively abutted against the bottom wall of the first rotating groove and the first flexible wheel at two ends in the axial direction.

[0014] Further, the inner peripheral wall of the first rotor is provided with a first fixing portion, the outer peripheral wall of the first wave generator is provided with a second fixing portion, and the first fixing portion cooperates with the second fixing portion to fix the first wave generator to the first rotor.

[0015] Further, one of the first fixing portion and the second fixing portion is configured as a first fixing groove, and the other of the first fixing portion and the second fixing portion is configured as a first fixing block.

[0016] Furthermore, a first limiting groove is provided on the outer peripheral wall of the first wave generator, and the compressor unit equipment also includes: a first limiting member, the first limiting member is accommodated in the first limiting groove, and the first limiting member and the first rotor are axially stopped to fix the first rotor and the first wave generator in the axial direction.

[0017] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0019] Figure 1 It is a structural schematic diagram of the compressor unit equipment of the present invention;

[0020] Figure 2 A cross-sectional view of the motor and linkage device of the present invention;

[0021] Figure 3 for Figure 2 The middle circle shows an enlarged view of A.

[0022] The following are marked in the accompanying drawings:

[0023] 1. Compressor equipment;

[0024] 10. Motor; 11. Motor housing; 12. Stator; 13. First rotor; 131. First fixing block; 14. Second rotor;

[0025] 20. screw compressor; 21. first compressor shaft;

[0026] 30. Reciprocating compressor; 31. Second compressor shaft;

[0027] 41. Fixed housing; 42. First flexible wheel; 43. Second flexible wheel; 44. First wave generator; 45. Second wave generator; 46. First sliding bearing;

[0028] 50. A first limit member. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0030] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other instances, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.

[0031] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] like Figure 1-Figure 3 As shown, the present invention provides an integrated compact screw and reciprocating compressor unit 1, comprising: a motor 10, a screw compressor 20, a reciprocating compressor 30 and a linkage device, wherein the rotor of the motor 10 is rotatably disposed in a stator 12, a mounting channel is formed in the rotor, the screw compressor 20 has a first compressor shaft 21, the first compressor shaft 21 is rotatably disposed in the mounting channel and is located at one end of the mounting channel in the axial direction, the reciprocating compressor 30 has a second compressor shaft 31, the second compressor shaft 31 is rotatably disposed in the mounting channel and is located at the other end of the mounting channel in the axial direction, a linkage device is disposed in the mounting channel, and the linkage device is suitable for connecting the rotor with the first compressor shaft 21 and the second compressor shaft 31; wherein the linkage device is suitable for increasing the torque received by the first compressor shaft 21 and the second compressor shaft 31 from the rotor.

[0035] In some embodiments, the motor 10 includes a motor housing 11, a rotor and a stator 12. The motor housing 11 is provided with a mounting cavity. The stator 12 is fixedly provided on the inner peripheral wall of the mounting cavity. The rotor is rotatably provided in the stator 12, and a mounting channel that penetrates in the axial direction is formed in the rotor. The screw compressor 20 is provided with a first compressor shaft 21, and the reciprocating compressor 30 is provided with a second compressor shaft 31. The first compressor shaft 21 and the second compressor shaft 31 are respectively provided at two ends of the mounting channel in the axial direction, and the first compressor shaft 21 and the second compressor shaft 31 can rotate relative to the rotor respectively. A linkage device is also provided in the mounting channel, and the linkage device is suitable for linking the first compressor shaft 21 with the rotor, and the linkage device is suitable for linking the second compressor shaft 31 with the rotor, so that the rotation of the rotor can drive the first compressor shaft 21 and the second compressor shaft 31 to rotate. At the same time, when the rotor transmits the torque to the first compressor shaft 21 and the second compressor shaft 31, the linkage device can increase the torque of the first compressor shaft 21 and the second compressor shaft 31.

[0036] It can be understood that the first compressor shaft 21 and the second compressor shaft 31 are respectively arranged at the two ends of the motor 10 in the axial direction and are both connected to the rotor, so that the motor 10 of the present application can drive the reciprocating compressor 30 and the screw compressor 20 to work at the same time. Compared with the traditional embodiment in which one motor 10 corresponds to one compressor, the compressor unit equipment 1 of the present application uses a small number of motors 10, which saves the production cost of the compressor unit equipment 1, and can make the structure of the compressor unit equipment 1 of the present application more compact, reducing the axial length of the compressor unit equipment 1, thereby reducing the installation space of the compressor unit equipment 1.

[0037] At the same time, the stator 12 and the rotor are both arranged in the installation cavity, that is, the radial projections of the stator 12 and the rotor are both located in the motor housing 11, and the first compressor shaft 21 and the second compressor shaft 31 are respectively rotatably arranged in the installation channel and are located at the two ends of the installation channel in the axial direction. Therefore, the radial projections of the first compressor shaft 21 and the second compressor shaft 31 are at least partially located in the motor housing 11, that is, through the above-mentioned arrangement, the axial length dimension of the compressor unit equipment 1 can be further reduced, thereby improving the structural compactness of the compressor unit equipment 1.

[0038] It is worth noting that the linkage device is also arranged in the installation channel, and the linkage device is suitable for linking the first compressor shaft 21 and the second compressor shaft 31 with the rotor in the installation channel. Therefore, through the above-mentioned setting, the linkage device can avoid increasing the axial length dimension of the compressor unit equipment 1, thereby further improving the structural compactness of the compressor unit equipment 1.

[0039] According to the compressor unit equipment 1 of the present invention, by accommodating at least a portion of the first compressor shaft 21 and the second compressor shaft 31 in the installation channel, and the first compressor shaft 21 and the second compressor shaft 31 are linked with the rotor through a linkage device in the installation channel, the axial length dimension of the compressor unit equipment 1 is shortened, and the structure of the compressor unit equipment 1 is more compact, thereby reducing the installation space occupied by the compressor unit equipment 1, facilitating the layout of other components of the oil and gas field production equipment, and reducing the volume of the oil and gas field production equipment.

[0040] Embodiment 2:

[0041] In this embodiment, based on the first embodiment, the rotor comprises: a first rotor 13 and a second rotor 14, wherein the first rotor 13 and the second rotor 14 are arranged at intervals in the stator 12; wherein a linkage device is arranged between the first rotor 13 and the second rotor 14, and the linkage device has a first input end and a first output end, wherein the first input end is suitable for connecting to the first rotor 13, and the first output end is suitable for connecting to the first compressor shaft 21; the linkage device also has a second input end and a second output end, wherein the second input end is suitable for connecting to the second rotor 14, and the second output end is suitable for connecting to the second compressor shaft 31.

[0042] It can be understood that the first rotor 13 and the second rotor 14 are spaced apart in the axial direction, and the linkage device is arranged between the first rotor 13 and the second rotor 14, the linkage device has a first input end and a first output end facing the first rotor 13, the first input end is suitable for connecting with the first rotor 13, and the first output end is suitable for connecting with the first compressor shaft 21, the rotation of the first rotor 13 can drive the first input end to rotate, the rotation of the first input end can drive the first output end to rotate, and the rotation of the first output end can drive the first compressor shaft 21 to rotate.

[0043] At the same time, the linkage device also has a second input end and a second output end facing the second rotor 14. The second input end is suitable for connecting to the second rotor 14, and the second output end is suitable for connecting to the second compressor shaft 31. The rotation of the second rotor 14 can drive the second input end to rotate, the rotation of the second input end can drive the second output end to rotate, and the rotation of the second output end can drive the second compressor shaft 31 to rotate.

[0044] It is worth noting that, through the above arrangement, the present application can make the first rotor 13 and the second rotor 14 drive the first compressor shaft 21 and the second compressor shaft 31 to rotate respectively, so as to avoid the first compressor shaft 21 and the second compressor shaft 31 interfering with each other when rotating, thereby improving the working stability of the compressor unit 1. At the same time, through the above arrangement, the screw compressor 20 and the reciprocating compressor 30 can work independently or collaboratively, thereby adapting to different compression requirements and improving the working adaptability of the compressor unit 1.

[0045] It is worth mentioning that the linkage device can reduce the speed of the first rotor 13 transmitted to the first compressor shaft 21, and increase the torque transmitted from the first rotor 13 to the first compressor shaft 21; the linkage device can also reduce the speed of the second rotor 14 transmitted to the second compressor shaft 31, and increase the torque transmitted from the second rotor 14 to the second compressor shaft 31.

[0046] Embodiment three:

[0047] On the basis of the second embodiment, the linkage device of this embodiment includes: a fixed housing 41, a first flexible wheel 42, a second flexible wheel 43, a first wave generator 44 and a second wave generator 45, the fixed housing 41 is connected to the stator 12, and the fixed housing 41 has a receiving groove extending in the axial direction, and the inner circumferential wall of the receiving groove is respectively provided with a first tooth portion and a second tooth portion at both ends in the axial direction, the first flexible wheel 42 and the second flexible wheel 43 are respectively configured as a first output end and a second output end, and the outer circumferential walls of the first flexible wheel 42 and the second flexible wheel 43 are respectively provided with a third tooth portion and a fourth tooth portion, the third tooth portion is suitable for cooperating with the first tooth portion, the fourth tooth portion is suitable for cooperating with the second tooth portion, the first wave generator 44 and the second wave generator 45 are respectively constructed as a first input end and a second input end, the first wave generator 44 and the second generator are respectively rotatably arranged in the first flexible wheel 42 and the second flexible wheel 43; wherein the first wave generator 44 is suitable for squeezing the first flexible wheel 42 to make the first tooth portion at least partially meshed with the third tooth portion, and the second wave generator 45 is suitable for squeezing the second flexible wheel 43 to make the second tooth portion at least partially meshed with the fourth tooth portion.

[0048] In some embodiments, a first tooth portion is provided on the inner circumferential wall of the accommodating groove at one end axially facing the first rotor 13. The first tooth portion cooperates with the third tooth portion to connect the first flexible gear 42 to the fixed housing 41. The first flexible gear 42 is suitable for being connected to the first compressor shaft 21. A first wave generator 44 is also provided in the first flexible gear 42. The first wave generator 44 is suitable for being connected to the first rotor 13, and the first wave generator 44 is rotatably sleeved on at least a portion of the outer periphery of the first compressor shaft 21.

[0049] Thus, the rotation of the first rotor 13 can drive the first wave generator 44 to rotate, and the first wave generator 44 rotates and squeezes the first flexible wheel 42, so that the first flexible wheel 42 undergoes elastic deformation, so that the third tooth portion of the first flexible wheel 42 meshes with the first tooth portion of the fixed housing 41, thereby rotating the first flexible wheel 42, and the rotation of the first flexible wheel 42 can drive the first compressor shaft 21 to rotate. In this process, the continuous squeezing effect of the first wave generator 44 on the first flexible wheel 42 realizes the gradual accumulation and amplification of the torque, thereby enhancing the torque received by the first compressor shaft 21.

[0050] Similarly, a second tooth portion is provided on the inner circumferential wall of the accommodating groove at one end facing the second rotor 14 in the axial direction. The second tooth portion cooperates with the fourth tooth portion to connect the second flexible gear 43 to the fixed housing 41. The second flexible gear 43 is suitable for connecting to the second compressor shaft 31. A second wave generator 45 is also provided in the second flexible gear 43. The second wave generator 45 is suitable for connecting to the second rotor 14, and the second wave generator 45 is rotatably sleeved on at least a portion of the outer periphery of the second compressor shaft 31.

[0051] Thus, the rotation of the second rotor 14 can drive the second wave generator 45 to rotate, and the second wave generator 45 rotates and squeezes the second flexible gear 43, so that the second flexible gear 43 is elastically deformed, so that the fourth tooth portion of the second flexible gear 43 is meshed with the second tooth portion of the fixed housing 41, thereby rotating the second flexible gear 43, and the rotation of the second flexible gear 43 can drive the second compressor shaft 31 to rotate. In this process, the continuous squeezing effect of the second wave generator 45 on the second flexible gear 43 realizes the gradual accumulation and amplification of the torque, thereby enhancing the torque received by the second compressor shaft 31.

[0052] It is worth mentioning that the first wave generator 44 is sleeved on at least part of the outer circumference of the first compressor shaft 21, that is, the projection of the first wave generator 44 and the first compressor shaft 21 in the radial direction at least partially overlaps, thereby shortening the axial matching dimensions of the linkage device, the first compressor shaft 21 and the first rotor 13. Similarly, the second wave generator 45 is sleeved on at least part of the outer circumference of the second compressor shaft 31, that is, the projection of the second wave generator 45 and the second compressor shaft 31 in the radial direction at least partially overlaps, thereby shortening the axial matching dimensions of the linkage device, the second compressor shaft 31 and the second rotor 14.

[0053] Embodiment 4:

[0054] In this embodiment, based on the third embodiment, the linkage device further includes: a partition plate, which is arranged in the fixed shell 41 and is suitable for dividing the accommodating cavity into a first cavity and a second cavity, and the inner peripheral walls of the first cavity and the second cavity are respectively formed with a first tooth portion and a second tooth portion.

[0055] In some embodiments, the partition plate is suitable for dividing the accommodating cavity into a first cavity and a second cavity, a first tooth portion is formed in the first cavity, and the first tooth portion is suitable for cooperating with the third tooth portion of the first flexible wheel 42; a second tooth portion is formed in the second cavity, and the second tooth portion is suitable for cooperating with the fourth tooth portion of the second flexible wheel 43. It can be understood that the partition plate can limit the axial movement of the first flexible wheel 42 and the second flexible wheel 43, prevent the first flexible wheel 42 and the second flexible wheel 43 from moving toward each other and contacting, improve the rotation stability of the first flexible wheel 42 and the second flexible wheel 43, thereby improving the working stability of the linkage device, and further improving the working stability of the compressor unit equipment 1.

[0056] According to some embodiments of the present invention, a first rotating groove is provided on the bottom wall of the first cavity, and the linkage device further includes: a first sliding bearing 46, which is rotatably provided in the first rotating groove, and the first sliding bearing 46 has two ends in the axial direction that respectively abut against the bottom wall of the first rotating groove and the first flexible wheel 42.

[0057] It can be understood that the bottom wall of the first cavity is provided with a first rotating groove which is open in the axial direction, and a first sliding bearing 46 is rotatably provided in the first rotating groove. The first sliding bearing 46 is respectively abutted against the first flexible wheel 42 and the bottom wall of the first rotating groove at two ends in the axial direction. The first sliding bearing 46 is suitable for avoiding direct contact between the first flexible wheel 42 and the bottom wall of the first cavity, thereby reducing the friction suffered by the first flexible wheel 42 during rotation, thereby reducing the wear on the first flexible wheel 42 and extending the service life of the first flexible wheel 42. At the same time, the above-mentioned arrangement can also ensure that the torque transmitted to the first compressor shaft 21 by the first rotor 13, thereby improving the output torque of the compressor unit equipment 1.

[0058] Similarly, the bottom wall of the second cavity is provided with a second rotating groove which is open in the axial direction, and a second sliding bearing is rotatably provided in the second rotating groove, and the second sliding bearing is respectively abutted against the second flexible wheel 43 and the bottom wall of the second rotating groove at two ends in the axial direction, and the second sliding bearing is suitable for avoiding direct contact between the second flexible wheel 43 and the bottom wall of the second cavity, thereby reducing the friction suffered by the second flexible wheel 43 during rotation, thereby reducing the wear on the second flexible wheel 43 and extending the service life of the second flexible wheel 43. At the same time, the above-mentioned arrangement can also ensure that the torque transmitted to the second compressor shaft 31 by the second rotor 14, thereby improving the output torque of the compressor unit equipment 1.

[0059] Embodiment five:

[0060] In this embodiment, based on the third embodiment, the inner circumferential wall of the first rotor 13 is provided with a first fixing portion, and the outer circumferential wall of the first wave generator 44 is provided with a second fixing portion. The first fixing portion cooperates with the second fixing portion to fix the first wave generator 44 to the first rotor 13, so that the first wave generator 44 can stably follow the rotation of the first rotor 13, so that the rotation of the first rotor 13 can stably drive the first compressor shaft 21 to rotate, thereby improving the working stability of the screw compressor 20.

[0061] The inner circumferential wall of the second rotor 14 is provided with a third fixing portion, and the outer circumferential wall of the second wave generator 45 is provided with a fourth fixing portion. The second fixing portion cooperates with the fourth fixing portion to fix the second wave generator 45 to the second rotor 14, so that the second wave generator 45 can stably follow the rotation of the second rotor 14, so that the rotation of the second rotor 14 can stably drive the second compressor shaft 31 to rotate, thereby improving the working stability of the reciprocating compressor 30.

[0062] According to some embodiments of the present invention, one of the first fixing portion and the second fixing portion is configured as a first fixing groove, and the other of the first fixing portion and the second fixing portion is configured as a first fixing block 131. The first fixing block 131 is accommodated in the first fixing groove to fix the first wave generator 44 and the first rotor 13 in the circumferential direction, so that the radial area ratio of the first wave generator 44 can be reduced, thereby increasing the diameter of the first compressor shaft 21, thereby improving the strength of the first compressor shaft 21, and allowing the first compressor shaft 21 to transmit greater torque.

[0063] In some embodiments, a first fixing groove is provided on the outer peripheral wall of the first wave generator 44, and one end of the first fixing groove extends axially to the end face of the first wave generator 44. A first fixing block 131 corresponding to the first fixing groove is provided on the inner peripheral wall of the first rotor 13. When assembling the first wave generator 44, the first fixing block 131 is first aligned axially with the first fixing groove, and then the first wave generator 44 is pushed so that the first fixing block 131 slides relative to the first fixing groove. The first fixing block 131 is accommodated in the first fixing groove to limit the circumferential movement of the first wave generator 44 relative to the first rotor 13, so that the first wave generator 44 can stably follow the rotation of the first rotor 13.

[0064] Similarly, one of the third fixing portion and the fourth fixing portion is constructed as a second fixing groove, and the other of the third fixing portion and the fourth fixing portion is constructed as a second fixing block, which is received in the second fixing groove to fix the second wave generator 45 and the second rotor 14 in the circumferential direction.

[0065] According to some embodiments of the present invention, a first limiting groove is provided on the outer peripheral wall of the first wave generator 44, and the compressor unit equipment 1 also includes: a first limiting member 50, the first limiting member 50 is accommodated in the first limiting groove, and the first limiting member 50 and the first rotor 13 are axially stopped to fix the first rotor 13 and the first wave generator 44 in the axial direction.

[0066] In some embodiments, a first limiting groove is provided on the outer peripheral wall of the first wave generator 44, and a first limiting member 50 is received in the first limiting groove and abuts against the first rotor 13 in the axial direction. The first limiting member 50 can limit the axial movement of the first wave generator 44 relative to the first rotor 13, so that the first wave generator 44 can be stably connected to the first rotor 13.

[0067] In other embodiments, a second limiting groove is provided on the outer peripheral wall of the second wave generator 45, and a second limiting member is received in the second limiting groove and abuts against the second rotor 14 in the axial direction. The second limiting member can limit the axial movement of the second wave generator 45 relative to the second rotor 14, so that the second wave generator 45 can be stably connected to the second rotor 14.

[0068] Embodiment six:

[0069] The present invention provides an oil and gas field production equipment, the oil and gas field production equipment comprising the integrated compact screw and reciprocating compressor unit equipment 1 described in any one of the above embodiments. Since the oil and gas field production equipment according to the present invention is provided with the integrated compact screw and reciprocating compressor unit equipment 1 of the above embodiment, the compressor unit equipment 1 of the oil and gas field production equipment is small in size, which facilitates the layout of other components of the oil and gas field production equipment and improves the assembly efficiency of the oil and gas field production equipment. At the same time, the oil and gas field production equipment can be designed to be more compact, so that the volume of the oil and gas field production equipment can be smaller.

[0070] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An integrated compact screw and reciprocating compressor unit, characterized in that: include: A motor (10), wherein a rotor of the motor (10) is rotatably disposed in a stator (12), and a mounting channel is formed in the rotor; A screw compressor (20), the screw compressor (20) having a first compressor shaft (21), the first compressor shaft (21) being rotatably disposed in the mounting channel and located at one end of the mounting channel in the axial direction; A reciprocating compressor (30), the reciprocating compressor (30) having a second compressor shaft (31), the second compressor shaft (31) being rotatably disposed in the mounting channel and located at the other end of the mounting channel in the axial direction; A linkage device is arranged in the installation channel, and the linkage device is suitable for connecting the rotor with the first compressor shaft (21) and the second compressor shaft (31); wherein The linkage is adapted to increase the torque received by the first compressor shaft (21) and the second compressor shaft (31) from the rotor.

2. The integrated compact screw and reciprocating compressor unit according to claim 1, characterized in that: The rotor comprises: a first rotor (13) and a second rotor (14), wherein the first rotor (13) and the second rotor (14) are arranged in the stator (12) at an interval; The linkage device is arranged between the first rotor (13) and the second rotor (14), and has a first input end and a first output end, wherein the first input end is suitable for connecting to the first rotor (13), and the first output end is suitable for connecting to the first compressor shaft (21); The linkage device also has a second input end and a second output end, the second input end is suitable for connecting to the second rotor (14), and the second output end is suitable for connecting to the second compressor shaft (31).

3. The integrated compact screw and reciprocating compressor unit according to claim 2, characterized in that: The linkage device comprises: A fixed housing (41), the fixed housing (41) being connected to the stator (12), and the fixed housing (41) having a receiving groove extending in the axial direction, wherein the inner peripheral wall of the receiving groove is respectively provided with a first tooth portion and a second tooth portion at two ends in the axial direction; A first flexible wheel (42) and a second flexible wheel (43), wherein the first flexible wheel (42) and the second flexible wheel (43) are respectively configured as the first output end and the second output end, and the outer peripheral walls of the first flexible wheel (42) and the second flexible wheel (43) are respectively provided with a third tooth portion and a fourth tooth portion, wherein the third tooth portion is suitable for cooperating with the first tooth portion, and the fourth tooth portion is suitable for cooperating with the second tooth portion; A first wave generator (44) and a second wave generator (45), wherein the first wave generator (44) and the second wave generator (45) are respectively configured as the first input end and the second input end, and the first wave generator (44) and the second generator are respectively rotatably disposed in the first flexible wheel (42) and the second flexible wheel (43); wherein The first wave generator (44) is adapted to press the first flexible wheel (42) to make the first tooth portion at least partially mesh with the third tooth portion, and the second wave generator (45) is adapted to press the second flexible wheel (43) to make the second tooth portion at least partially mesh with the fourth tooth portion.

4. The integrated compact screw and reciprocating compressor unit according to claim 3, characterized in that: The linkage device further comprises: a partition plate, which is arranged in the fixed shell (41) and is suitable for dividing the accommodating cavity into a first cavity and a second cavity, wherein the first tooth portion and the second tooth portion are formed on the inner peripheral walls of the first cavity and the second cavity respectively.

5. The integrated compact screw and reciprocating compressor unit according to claim 4, characterized in that: The bottom wall of the first cavity is provided with a first rotating groove, and the linkage device further comprises: a first sliding bearing (46), the first sliding bearing (46) is rotatably arranged in the first rotating groove, and the first sliding bearing (46) has two ends in the axial direction respectively abutting against the bottom wall of the first rotating groove and the first flexible wheel (42).

6. The integrated compact screw and reciprocating compressor unit according to claim 3, characterized in that: The inner peripheral wall of the first rotor (13) is provided with a first fixing portion, and the outer peripheral wall of the first wave generator (44) is provided with a second fixing portion, and the first fixing portion cooperates with the second fixing portion to fix the first wave generator (44) to the first rotor (13).

7. The integrated compact screw and reciprocating compressor unit according to claim 6, characterized in that: One of the first fixing portion and the second fixing portion is configured as a first fixing groove, and the other of the first fixing portion and the second fixing portion is configured as a first fixing block (131).

8. The integrated compact screw and reciprocating compressor unit according to claim 7, characterized in that: The outer peripheral wall of the first wave generator (44) is provided with a first limiting groove, and the compressor unit equipment (1) further comprises: A first limiting member (50), wherein the first limiting member (50) is received in the first limiting groove, and the first limiting member (50) and the first rotor (13) abut against each other in the axial direction to fix the first rotor (13) and the first wave generator (44) in the axial direction.

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