Modular water vapor screw compressor with adjustable control gap

Abstract

The application relates to a modular water vapor screw compressor with adjustable control gap, and relates to the technical field of water vapor screw compressors. The screw compressor comprises a shell, a rotor body, a cover, and an adjusting mechanism. The adjusting mechanism comprises: a mounting seat arranged on the shell; an adjusting seat rotatably arranged on the shell, a threaded section being arranged on the inner side wall of the adjusting seat, the rotor body being rotatably arranged on the mounting seat and being threadedly connected to the threaded section at the other end; and a locking piece arranged on the adjusting seat. In the application, the rotor body can be rotated to adjust the control gap during assembly; after assembly is completed, the cover is removed from the shell, the rotor body is rotated to adjust the control gap, and the rotor body is locked by the locking piece, so that the assembly efficiency can be greatly improved and the cost can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of steam screw compressors, and in particular to a modular steam screw compressor with adjustable controllable clearance. Background Technology

[0002] A steam screw compressor is a positive displacement gas compression machine that uses a pair of meshing male and female rotors rotating inside a housing to change the volume between the teeth, thereby achieving gas intake, compression, and discharge.

[0003] The axial control clearance between the rotor exhaust end face and the exhaust chamber end face needs to be precisely controlled during assembly. If the control clearance is too large, the leakage of the main unit will increase, affecting the volumetric efficiency. If the control clearance is too small, the rotor is prone to friction with the end face or even jamming during operation, which may cause the main unit to be scrapped in severe cases.

[0004] Currently, the industry commonly uses the shim adjustment method to adjust the control clearance. This method requires calculating the shim thickness based on the exhaust chamber depth, rotor shoulder size, and target control clearance value, and then installing shims of the corresponding thickness on the rotor shoulder. Therefore, various shims of different specifications are needed. If the shim thickness is inconsistent with the required thickness, the shims may need to be ground and assembled, which reduces assembly efficiency. Moreover, after assembly and commissioning, the exhaust end control clearance is fixed. When the rotor wears down due to long-term operation or needs to adjust the control clearance according to changes in operating conditions, the entire main unit must be disassembled and returned to the factory, resulting in high maintenance costs. Therefore, improving assembly efficiency and reducing costs are urgent technical problems to be solved. Summary of the Invention

[0005] To improve assembly efficiency and reduce costs, this application provides a modular steam screw compressor with adjustable controllable clearance.

[0006] This application provides a modular steam screw compressor with adjustable controllable clearance, employing the following technical solution: A modular steam screw compressor with adjustable controllable clearance includes a housing, a rotor body, a cover, and an adjustment mechanism. One end of the housing forms an adjustment port, and the cover is detachably mounted on the housing and used to seal the adjustment port. The adjustment mechanism includes: The mounting base is located on the end of the housing furthest from the adjustment port; An adjustment seat is rotatably mounted on one end of the housing near the adjustment port. A threaded section is provided on the inner side wall of the adjustment seat. The rotor body is rotatably mounted on the mounting seat and its other end is threadedly connected to the threaded section. The locking element is located on the adjusting seat; The rotor body rotates after the locking device unlocks it to adjust the control gap. After adjustment, the locking device locks the rotor body and causes the rotor body and the adjusting seat to rotate simultaneously. There are installation gaps between the rotor body and the mounting seat, and between the adjusting seat and the housing, to allow the rotor body to move and make way.

[0007] By adopting the above technical solution, the rotor body and the mounting base, as well as the adjusting base and the housing, are rotatably connected by bearings. Each bearing has a certain installation clearance, and the two installation clearances can make way for the rotor body to move and adjust the control clearance. During the assembly process, the adjusting base is positioned, and then the rotor body can be rotated to adjust the control clearance. After the adjustment is completed, the locking component locks the rotor body, and finally the cover is fixedly installed on the housing to block the adjustment port, which greatly improves the convenience of assembly.

[0008] When the control gap needs to be adjusted after assembly, the cover is removed from the housing, the locking mechanism is unlocked, the adjusting seat is positioned, and then the rotor body is rotated to adjust the control gap. After adjustment, the locking mechanism continues to lock the rotor body, and finally the cover is fixedly installed on the housing, thus completing the adjustment of the control gap. This makes adjusting the control gap extremely convenient, greatly improving assembly efficiency and reducing costs.

[0009] Optionally, the adjusting seat has multiple inclined locking holes arranged in a circular array around the rotor body axis, and the locking element has multiple locking screws that are threaded onto the locking holes and press against the rotor body for positioning.

[0010] By adopting the above technical solution, the locking screw is inclined and threaded into the locking hole, pressing against the rotor body for positioning. This allows the locking screw to pass obliquely through the side wall of the adjusting seat and press against the rotor body. Compared to passing vertically, this greatly reduces the length of the locking screw and increases its strength. Furthermore, the inclined locking screw can generate a horizontal component force on the rotor body, which can prevent the rotor body from moving horizontally, thus improving the locking effect on the rotor body. This can significantly improve assembly efficiency and operational stability, while also reducing costs.

[0011] Optionally, the head of the locking screw is located within the locking hole, and the device further includes a plurality of tightening mechanisms located between the adjusting seat and the cover, the tightening mechanisms including: Tighten the rod, insert it into the locking hole and engage with the head of the locking screw, and rotate it to drive the locking screw to rotate; The force-applying component is mounted on the screwing rod and is used to drive the screwing rod to rotate. After the locking screw is driven to position the rotor body, the cover is fixedly installed on the housing to block the adjustment port and is positioned against the force-applying component.

[0012] By adopting the above technical solution, the compressor will generate a large vibration after operation. The vibration can easily cause the locking screw to loosen and unlock. In order to reduce the risk of collision of the locking screw during the rotation of the adjusting seat and improve the stability during operation, the head of the locking screw is placed in the locking hole. However, this makes it very inconvenient to tighten the locking screw. Therefore, the stability of the compressor during operation and the convenience of adjustment are problems that need to be solved.

[0013] Insert the screw rod into the locking hole and push it to engage with the locking screw head, connecting the screw rod to the locking screw. When adjustment is needed, remove the cover away from the force-applying component to facilitate its operation. The force-applying component drives the screw rod to rotate, which in turn drives the locking screw to rotate. Holding the screw rod also allows for positioning of the adjustment seat, followed by adjustment of the control gap. After adjustment, the cover is fixedly installed on the housing for sealing, and simultaneously, the cover rests against the force-applying component for positioning.

[0014] The force-applying assembly and lever facilitate the adjustment and control of the clearance. The cover is positioned against the force-applying assembly and is installed along the axis of the housing. The locking screw forms a certain angle with the housing axis, thus the cover can position the force-applying assembly, the lever, and the locking screw. If the locking screw tends to rotate, the lever can position the locking screw to prevent it from loosening. This greatly improves the positioning effect of the locking screw on the rotor body, enhances the stability of the compressor during operation, further improves assembly efficiency and operational stability, and reduces costs.

[0015] Simultaneously, the position of the adjusting seat can be positioned by inserting the screw rod into the locking hole, and then the rotor body rotates to adjust and control the clearance, which greatly improves the convenience of positioning the adjusting seat. Furthermore, when the force application component and the screw rod are used to position the locking screw, they can also counteract the force exerted by the rotor body on the locking screw, which can greatly reduce the force between the rotor body and the threaded section and the adjusting seat, making the rotor body more stable during operation and improving the stability of the compressor during operation.

[0016] Optionally, the end of the turning rod away from the locking screw has a rotating groove, and the rotating groove has a positioning surface one and a positioning surface two forming a certain angle. The force application component includes: A rotating column is mounted on the rotating groove and is perpendicular to the axis of the locking screw. The rotating plate is rotatably mounted on the rotating column and extends to the outside of the rotating groove at both ends. When the rotating plate abuts against the first positioning surface, its length direction is perpendicular to the axis of the locking screw, which facilitates the rotation of the screwing rod. When the rotating plate rotates and abuts against the second positioning surface, it is in a vertical state and abuts against the cover for positioning.

[0017] By adopting the above technical solution, when adjustment is required, the rotating plate rotates and abuts against the first positioning surface, making the length direction of the rotating plate perpendicular to the axis of the locking rod. The rotation of the rotating plate drives the turning rod to rotate. The two ends of the rotating plate extend to the outside of the rotating groove, which increases the torque when driving the turning rod to rotate, making it easier to drive the locking screw to rotate, greatly improving the convenience of the adjustment process. After adjustment, the rotating plate rotates and abuts against the second positioning surface for positioning. At this time, the rotating plate is in a vertical state. Therefore, after the cover is installed on the housing, the side wall of the rotating plate away from the turning rod abuts against the cover for positioning, preventing the rotating plate from rotating and moving. This allows for positioning of the locking screw, further improving assembly efficiency and operational stability, and reducing costs.

[0018] Optionally, a positioning disc is rotatably mounted on the cover, which abuts against multiple rotating plates for positioning.

[0019] By adopting the above technical solution, the positioning plate is positioned against the side wall of multiple rotating plates. The rotation of the adjusting seat drives the locking screw and the force application component to rotate, and the rotation of the force application component drives the positioning plate to rotate, thereby greatly reducing the risk of wear on the rotating plates and further improving the stability during operation.

[0020] Optionally, the rotor body is provided with a rotating part that facilitates rotation by applying force, and the positioning plate is provided with a limiting member that slides and is sleeved on the rotating part along the moving direction of the rotor body for limiting the movement.

[0021] By adopting the above technical solution, the rotating part is convenient to use when driving the rotor body. When the cover is fixedly installed on the housing, the limiting member is close to the rotating part, so that the limiting member slides and is positioned on the rotating part. When the rotor body rotates, it drives the rotating part to rotate. The rotation of the rotating part drives the positioning plate to rotate at the same time, thereby limiting and guiding the rotation of the rotor body, making the compressor more stable during operation. At the same time, when the rotor body rotates, the rotating part drives the positioning plate to rotate at the same time, so that the adjusting seat, the turning rod, the force application component and the positioning plate rotate at the same time, reducing the risk of relative wear between the rotating plate and the positioning plate, and greatly improving the stability during operation.

[0022] Optionally, the rotating plate is positioned by the friction between the rotating slots, and the turning rod is provided with a guide angle to facilitate the insertion and engagement with the locking screw.

[0023] By adopting the above technical solution, positioning can be achieved after the rotating plate has rotated due to friction. At the same time, the setting of the guide angle improves the convenience of operation.

[0024] Optionally, a sealing mechanism may also be included, the sealing mechanism comprising: The container base is rotatably mounted on the housing and has a container slot. Multiple carbon rings and multiple elastic elements are spaced apart in the container groove. Each elastic element presses against two adjacent carbon rings and pushes the two carbon rings to keep them away from each other, so that two of the carbon rings are pressed against the container groove for positioning. A first magnetic ring is provided on the outer wall of each carbon ring. A bushing is fitted onto the rotor body and has a sealing groove on its inner wall that extends into the inner side of multiple carbon rings. A second magnetic ring is provided on the sealing groove that corresponds to the multiple first magnetic rings and generates a repulsive force on each of the multiple first magnetic rings.

[0025] By adopting the above technical solution, the gas enters and generates a stable thrust on the bushing, so that a certain gap is maintained between the bushing and the inner wall of the carbon ring. The rotation of the rotor body drives the bushing to rotate, and the gas can fill and support the gap between the bushing and the carbon ring. At the same time, the second magnetic ring generates the same repulsive force on multiple first magnetic rings, so that multiple first magnetic rings are in the center position. In addition, it can adapt to changes in gas pressure, which can further improve the sealing effect.

[0026] Optionally, the housing has a mounting port at the end opposite to the adjustment port, and a gearbox that seals the mounting port is detachably mounted on the housing. The rotor body includes: The male and female rotors mesh with each other and compress the medium; The drive assembly, located inside the gearbox, is used to drive the female rotor and the male rotor to rotate simultaneously in opposite directions.

[0027] By adopting the above technical solution, the drive component starts to drive the male and female rotors to rotate, so as to draw in air, compress it, and obtain water vapor.

[0028] Optionally, the driving component includes: The drive gear is rotatably mounted on the housing and connected to the drive component; The driven gear is mounted on the female or male rotor and meshes with the driving gear. Two synchronizing gears are mounted on the female rotor and the male rotor and mesh with each other.

[0029] By adopting the above technical solution, the drive component starts and drives the active gear to rotate, the active gear rotates and drives the driven gear to rotate, the driven gear drives the female or male rotor connected to it to rotate, and at the same time, the female and male rotors are driven to rotate simultaneously and in opposite directions by two synchronous gears, and are supported by the two synchronous gears, thereby ensuring that the female and male rotors maintain a certain distance, making the compressor operation more stable.

[0030] In summary, this application includes at least one of the following beneficial technical effects: 1. The control gap can be adjusted by rotating the rotor body during assembly. After adjustment, the locking device locks the rotor body. When the control gap needs to be adjusted after assembly, the cover is removed from the housing, the locking device is unlocked, the rotor body is rotated to adjust the control gap, and after adjustment, the locking device continues to lock the rotor body. The cover is then fixedly installed on the housing, thus completing the adjustment of the control gap. This makes adjusting the control gap extremely convenient, greatly improving assembly efficiency and reducing costs.

[0031] 2. The force-applying components and force-applying rods make it easier to adjust and control the clearance. The cover can position the force-applying components, the turning rod, and the locking screws, and can also position the locking screws to prevent them from loosening. This greatly improves the positioning effect of the locking screws on the rotor body, enhances the stability of the compressor during operation, further improves assembly efficiency and operational stability, and reduces costs.

[0032] 3. The position of the adjusting seat is positioned by inserting the screw rod into the locking hole. Then, the rotor body rotates to adjust the control clearance, which greatly improves the convenience of positioning the adjusting seat. In addition, when the force application component and the screw rod are used to position the locking screw, they can also counteract the force of the rotor body on the locking screw, which can greatly reduce the force between the rotor body and the threaded section and the adjusting seat, making the rotor body run more stably and improving the stability of the compressor. Attached Figure Description

[0033] Figure 1 This is a cross-sectional schematic diagram of embodiment 1 of the screw compressor; Figure 2 yes Figure 1 Enlarged diagram of section A in the middle; Figure 3 yes Figure 1 Enlarged diagram of section B in the middle; Figure 4 This is a partial cross-sectional schematic diagram of Embodiment 1 of the screw compressor, mainly showing the drive assembly; Figure 5 yes Figure 1 Enlarged diagram of section C; Figure 6 This is a partial structural schematic diagram of embodiment 2 of the screw compressor; Figure 7 yes Figure 6 A cross-sectional schematic diagram of DD; Figure 8 yes Figure 7 Enlarged schematic diagram of section E in the middle.

[0034] Reference numerals: 1. Housing; 11. Cover; 12. Gearbox; 13. Adjustment port; 14. Mounting port; 16. Mounting hole; 17. Bearing seat; 18. Fixing hole; 19. Exhaust seat; 2. Rotor body; 21. Female rotor; 22. Male rotor; 24. Mounting part; 26. Mounting section; 3. Drive assembly; 31. Drive gear; 32. Driven gear; 33. Synchronizing gear; 4. Adjustment mechanism; 41. Mounting seat; 411. Bearing one; 42. Adjustment seat; 421. Bearing two; 4 4. Locking hole; 45. Locking screw; 5. Sealing mechanism; 51. Collection base; 52. Carbon ring; 53. Elastic element; 54. Bushing; 55. Collection groove; 56. First magnetic ring; 57. Sealing groove; 58. Second magnetic ring; 6. Tightening mechanism; 61. Tightening rod; 62. Rotating groove; 63. Positioning surface one; 64. Positioning surface two; 65. Positioning plate; 66. Rotating part; 67. Limiting element; 7. Force application component; 71. Rotating column; 72. Rotating plate; 8. Exhaust chamber; 9. Control clearance. Detailed Implementation

[0035] The following provides a further detailed description of this application.

[0036] This application discloses a modular steam screw compressor with adjustable controllable gap.

[0037] Example 1, referring to Figure 1 A modular steam screw compressor with adjustable control gap includes a housing 1, a rotor body 2, a cover 11, and an adjustment mechanism 4. An exhaust seat 19 is fixedly installed at one end of the housing 1. An adjustment port 13 and an installation port 14 are formed at opposite ends of the exhaust seat 19 and the housing 1, respectively. The cover 11 is detachably installed on one end of the exhaust seat 19, and the gearbox 12 is detachably installed on one end of the housing 1. The cover 11 blocks the adjustment port 13, and the gearbox 12 blocks the installation port 14. The rotor body 2 is rotatably installed on the housing 1, and the adjustment mechanism 4 is used to adjust the control gap 9 between the exhaust end of the rotor body 2 and the end face of the exhaust chamber 8.

[0038] Reference Figures 1-3The adjustment mechanism 4 includes a mounting base 41, an adjustment base 42, and a locking element. The mounting base 41 is fixedly installed on the inner wall of the housing 1 near the mounting port 14, and a bearing seat 17 is fixedly installed on the inner wall of the housing 1 near the adjustment port 13. The bearing seat 17, the mounting base 41, and the housing 1 cooperate to form an exhaust chamber 8. The rotor body 2 includes a female rotor 21 and a male rotor 22, and a drive assembly 3. The female rotor 21 and the male rotor 22 are spaced apart and mesh with each other, and are located in the exhaust chamber 8. The control gap between the end of the female rotor 21 and the male rotor 22 near the cover 11 and the bearing seat 17 is the control gap 9 that needs to be adjusted.

[0039] The connection relationship between the female rotor 21 and the mounting base 41 and the bearing housing 17 is the same as that between the male rotor 22 and the mounting base 41 and the bearing housing 17. The mounting base 41 has a mounting hole 16 along the axis of the housing 1, and the bearing housing 17 has a fixing hole 18 along the axis of the housing 1. One end of both the female rotor 21 and the male rotor 22 extends through the fixing hole 18 to the side of the bearing housing 17 near the cover 11, and the other end extends through the mounting hole 16 to the side of the mounting base 41 near the gearbox 12. There are two adjusting seats 42 and locking parts, which are arranged at intervals and correspond to the female rotor 21 and the male rotor 22. The two have the same structure. The following explanation takes the female rotor 21 as an example.

[0040] One end of the female rotor 21 is rotatably mounted on the mounting hole 16 near the gearbox 12 via bearing 411, and the adjusting seat 42 is also rotatably mounted on the fixing hole 18 near the cover 11 via bearing 421. At the same time, there are certain installation gaps between bearing 411 and mounting hole 16, and between bearing 421 and fixing hole 18. The installation gaps allow the female rotor 21 to move a certain distance along its own axis, thereby satisfying the requirement that the female rotor 21 moves along its own axis when adjusting the control gap 9. The adjustment range of the control gap 9 is greater than 0 and less than 0.2 mm.

[0041] The inner wall of the adjusting seat 42 is provided with a threaded section and an installation section 26 along the axis of the housing 1. The diameter of the installation section 26 is smaller than the minor diameter of the threaded section. The female rotor 21 has a threaded part that is threadedly connected to the threaded section, and a smooth installation part 24 is formed that coaxially passes through the installation section 26. The installation part 24 extends to the side of the adjusting seat 42 near the cover 11.

[0042] An inclined locking hole 44 is provided on the side wall of the adjusting seat 42 near the cover 11. Multiple locking holes 44 are arranged in a circumferential array around the axis of the mounting section 26. Multiple locking elements are spaced apart and corresponding to the multiple locking holes 44. The locking elements are locking screws 45, which pass through the locking holes 44 and are threaded into them, pressing against the mounting part 24 for positioning. By using a tool to loosen the multiple locking screws 45 away from the mounting part 24 to unlock, the size of the control gap 9 can be adjusted by rotating the female rotor 21. After adjustment, the multiple locking screws 45 are loosened and pressed against the mounting part 24 for positioning, thereby completing the adjustment of the control gap 9.

[0043] Reference Figures 1-4 The rotor body 2 also includes a drive assembly 3, which drives the female rotor 21 and the male rotor 22 to rotate simultaneously in opposite directions, thereby drawing in air for compression to form compressed air, which is the prior art and will not be described in detail here. The drive assembly 3 includes a drive gear 31, a driven gear 32, and two synchronous gears 33. A drive component is fixedly installed on the inner wall of the housing 1. The drive component can be a motor. The drive gear 31 is keyed to the output shaft of the drive component. One end of the female rotor 21 extends into the gearbox 12. The driven gear 32 is keyed to the end of the female rotor 21 located in the gearbox 12 and meshes with the drive gear 31. Alternatively, one end of the male rotor 22 extends into the gearbox 12, and the driven gear 32 is located on the male rotor 22.

[0044] Two synchronous gears 33 are keyed to the female rotor 21 and the male rotor 22 respectively, and mesh with each other to support and position the female rotor 21 and the male rotor 22. The drive unit starts to drive the active gear 31 to rotate, the active gear 31 drives the driven gear 32 to rotate, and the rotation of the driven gear 32 causes the female rotor 21 and the male rotor 22 to rotate simultaneously and in opposite directions through the two synchronous gears 33.

[0045] Reference Figures 1-4 It also includes a sealing mechanism 5. The sealing mechanism 5 is located in the same position and is installed in the same way on the female rotor 21 and the male rotor 22. The following explanation will continue with the female rotor 21 as an example. Both the mounting hole 16 and the fixing hole 18 are provided with sealing mechanisms 5 connected to the female rotor 21. At the same time, the two sealing mechanisms 5 are located between the first bearing 411 and the second bearing 421 to achieve sealing. The following explanation will take the sealing mechanism 5 located in the mounting hole 16 as an example.

[0046] The sealing mechanism 5 includes a housing 51, multiple carbon rings 52, multiple elastic elements 53, and a bushing 54. The housing 51 is rotatably mounted on the fixing hole 18, and a housing groove 55 is coaxially formed on the inner side wall of the housing 51. The axes of the multiple carbon rings 52 and the multiple elastic elements 53 coincide with those of the housing 1, and the multiple carbon rings 52 and the multiple elastic elements 53 are all spaced apart along the axis of the housing 1. At the same time, the elastic element 53 is a spring, which is located between two adjacent carbon rings 52 and presses against the two adjacent carbon rings 52 for positioning, so that the two adjacent carbon rings 52 tend to move away from each other, and the two carbon rings 52 near the two ends of the housing groove 55 are pressed against the housing groove 55 for positioning.

[0047] A first magnetic ring 56 is coaxially fixedly installed on the outer wall of each carbon ring 52. The first magnetic ring 56 has the same thickness as the carbon ring 52 and the two corresponding surfaces are flush, so that the elastic element 53 also presses against the two adjacent first magnetic rings 56 for positioning. The outer diameter of the first magnetic ring 56 is smaller than the maximum diameter of the collection groove 55. The bushing 54 is coaxially fixedly installed on the outer wall of the female rotor 21, and the outer diameter of the bushing 54 is smaller than the inner diameter of the carbon ring 52, and coaxially passes through the carbon ring 52.

[0048] A sealing groove 57 is coaxially formed on the inner wall of the bushing 54. The sealing groove 57 covers the positions of multiple first magnetic rings 56 along its length. A second magnetic ring 58 is coaxially fixedly installed on the sealing groove 57. The second magnetic ring 58 is installed at the same level as the multiple first magnetic rings 56, so that the second magnetic ring 58 forms a repulsive force on the multiple first magnetic rings 56. This repulsive force is set radially along the carbon ring 52, so that the carbon ring 52 and the multiple first magnetic rings 56 are located at the center position. After the gas enters, it will generate a thrust on the bushing 54 radially along the carbon ring 52, thereby achieving the sealing and support positioning of the bushing 54.

[0049] This invention integrates the adjustment mechanism into an independent modular bearing housing assembly, featuring an integrated design with multi-stage carbon ring seals. The modular design requires achieving a high degree of integration of bearing support, oil seal, gas seal, and threaded adjustment functions within a limited space, while ensuring the reliability and compatibility of each functional subsystem.

[0050] The working principle of this application embodiment is as follows: Both the female rotor 21 and the male rotor 22 are rotatably mounted on the mounting base 41 and the bearing seat 17 via bearing 411 and bearing 421 respectively. During the assembly process, the adjusting seat 42 is positioned, and the female rotor 21 is rotated to adjust the control gap 9. After the adjustment is completed, the locking member locks the female rotor 21. The adjustment method for the control gap 9 located at the male rotor 22 is the same. Finally, the cover 11 is fixedly installed on the exhaust seat 19 to block the adjusting port 13, which greatly improves the convenience of assembly.

[0051] When the control gap 9 needs to be adjusted after assembly, remove the cover 11 from the exhaust seat 19, unlock the locking mechanism, position the adjusting seat 42, rotate the female rotor 21 to adjust the control gap 9, and after adjustment, the locking mechanism continues to lock the rotor body 2. The adjustment method for the control gap 9 at the male rotor 22 is the same. Finally, fix the cover 11 to the exhaust seat 19, thus completing the adjustment of the control gap 9. This makes adjusting the control gap 9 extremely convenient, greatly improving assembly efficiency and reducing costs.

[0052] Meanwhile, the adjustment mechanism is integrated into an independent modular bearing housing assembly. The integrated design of multi-stage ring seal and modular design can achieve a high degree of integration of bearing support, oil seal, gas seal and thread adjustment in a limited space, while ensuring the reliability and mutual compatibility of each functional subsystem, which can further improve assembly efficiency and reduce costs.

[0053] Example 2, refer to Figure 1 , Figures 6-8 The difference between this embodiment and embodiment 1 is that it also includes multiple turning mechanisms 6. The turning mechanism 6 is used to turn the locking screw 45, and is located between the adjusting seat 42 and the cover 11, and abuts against the cover 11 for positioning.

[0054] The tightening mechanism 6 includes a tightening rod 61 and a force-applying component 7. The tightening rod 61 is arranged along the axial direction of the locking hole 44 and is inserted into the locking hole 44. At the same time, the tightening rod 61 is inserted into or sleeved with the head of the locking screw 45, so that the tightening rod 61 rotates to drive the locking screw 45 to rotate. The tightening rod 61 has a guide angle to facilitate insertion or sleeved with the head of the locking screw 45. The force-applying component 7 is arranged on the tightening rod 61 and is used to drive the tightening rod 61 to rotate. After the locking screw 45 positions the rotor body 2, the cover 11 is fixedly installed on the housing 1 to block the adjustment port 13. The cover 11 abuts against the force-applying component 7 for positioning, preventing the force-applying component 7 from disengaging from the locking screw 45 and preventing the locking screw 45 from rotating.

[0055] The end of the turning rod 61 away from the locking screw 45 has a rotating groove 62. The rotating groove 62 near the turning rod 61 forms a first positioning surface 63 and a second positioning surface 64 that are connected to each other. The force application component 7 includes a rotating column 71 and a rotating plate 72. The rotating column 71 is fixedly installed on the rotating groove 62 and is in a horizontal state. The rotating plate 72 is rotatably installed on the rotating column 71 and extends to both sides of the rotating groove 62. At the same time, there is a certain friction between the rotating plate 72 and the rotating groove 62, which is used to position the rotating plate 72. When the rotating plate 72 rotates and abuts against the first positioning surface 63, its length direction is perpendicular to the axis of the locking screw 45, which facilitates the rotation of the locking screw 45. When the rotating plate 72 rotates and abuts against the second positioning surface 64, it is in a vertical state.

[0056] Two positioning discs 65 are rotatably mounted on the inner wall of the cover 11 near the housing 1. The two positioning discs 65 are coaxially arranged with the female rotor 21 and the male rotor 22, respectively. Therefore, when the cover 11 is fixedly installed on the housing 1, the multiple rotating plates 72 on the female rotor 21 are positioned against the positioning discs 65, and the multiple rotating plates 72 on the male rotor 22 are positioned against the other positioning disc 65.

[0057] A flat rotating part 66, which is convenient for applying force to drive the female rotor 21 to rotate, is fixedly installed at one end of the female rotor 21 near the cover 11. A limiting member 67 is fixedly installed on the positioning plate 65. The limiting member 67 slides and is sleeved on the rotating part 66 along the moving direction of the female rotor 21 to limit the rotation. The female rotor 21 drives the rotating part 66, the limiting member 67 and the positioning plate 65 to rotate simultaneously. At the same time, the rotation of the female rotor 21 drives multiple turning rods 61 and multiple rotating plates 72 to rotate, which reduces the risk of wear between the rotating plates 72 and the positioning plate 65.

[0058] The working principle of this application embodiment is as follows: When adjustment is required, the cover 11 is removed from the housing 1, so that the limiting member 67 is disengaged from the rotating part 66, and the positioning plate 65 is disengaged from the rotating plate 72; the rotating plate 72 rotates and abuts against the positioning surface 63 for positioning, so that the length direction of the rotating plate 72 is perpendicular to the axis of the locking screw 45. The rotation of the rotating plate 72 drives the turning rod 61 and the locking screw 45 to rotate, thereby unlocking the female rotor 21. Holding a certain torque rod 61 can position the adjusting seat 42. Then, the rotating part 66 is turned to drive the female rotor 21 to rotate, thereby adjusting the control gap 9. After the adjustment is completed, the rotating plate 72 drives the turning rod 61 and the locking screw 45 to rotate, so that the locking screw 45 presses against the mounting part 24 for positioning, thereby completing the adjustment of the control gap 9.

[0059] After adjustment, the rotating plate 72 rotates and abuts against the positioning surface 64 for positioning. The rotating plate 72 is in a vertical state. Then, the limiting member 67 is rotated to align with the rotating part 66, and the cover 11 is fixedly installed on the housing 1. The positioning plate 65 abuts against the rotating plate 72 for positioning. At the same time, even if the rotating part 66 moves, it can still slide and fit onto the limiting member 67 for positioning, thereby further improving the locking effect of the locking screw 45 and improving the convenience of adjusting and controlling the gap 9. This can greatly improve assembly efficiency and reduce costs.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular steam screw compressor with adjustable clearance, characterized in that: The system includes a housing (1), a rotor body (2), a cover (11), and an adjustment mechanism (4). One end of the housing (1) forms an adjustment port (13). The cover (11) is detachably mounted on the housing (1) and is used to block the adjustment port (13). The adjustment mechanism (4) includes: Mounting base (41) is located on the end of housing (1) away from adjustment port (13); The adjusting seat (42) is rotatably mounted on one end of the housing (1) near the adjusting port (13). A threaded section is provided on the inner side wall of the adjusting seat (42). The rotor body (2) is rotatably mounted on the mounting seat (41) and the other end is threadedly connected to the threaded section. The locking element is located on the adjusting seat (42); The rotor body (2) rotates after the locking member unlocks the rotor body (2) to adjust the control gap (9). After the adjustment is completed, the locking member is activated to lock the rotor body (2) and make the rotor body (2) and the adjusting seat (42) rotate simultaneously. There are installation gaps between the rotor body (2) and the mounting seat (41), and between the adjusting seat (42) and the housing (1) for the rotor body (2) to move and make way.

2. The modular steam screw compressor with adjustable clearance according to claim 1, characterized in that: The adjusting seat (42) has multiple inclined locking holes (44) arranged in a circular array around the axis of the rotor body (2). The locking element is provided with multiple locking screws (45) that are threaded onto the locking holes (44) and press against the rotor body (2) for positioning.

3. A modular steam screw compressor with adjustable clearance according to claim 2, characterized in that: The head of the locking screw (45) is located inside the locking hole (44), and the device also includes a plurality of tightening mechanisms (6) located between the adjusting seat (42) and the cover (11), the tightening mechanisms (6) including: Tighten the rod (61), insert it into the locking hole (44) and engage with the head of the locking screw (45), and rotate it to drive the locking screw (45) to rotate; The force application component (7) is set on the screwing rod (61) and is used to drive the screwing rod (61) to rotate. After the locking screw (45) is used to position the rotor body (2), the cover (11) is fixedly installed on the housing (1) to block the adjustment port (13) and abuts against the force application component (7) for positioning.

4. A modular steam screw compressor with adjustable clearance according to claim 3, characterized in that; The turning rod (61) has a rotating groove (62) at the end away from the locking screw (45). The rotating groove (62) has a positioning surface one (63) and a positioning surface two (64) forming a certain angle. The force application component (7) includes: A rotating column (71) is set on a rotating groove (62) and is perpendicular to the axis of the locking screw (45); The rotating plate (72) is rotatably mounted on the rotating column (71) and extends to the outside of the rotating groove (62) at both ends. When the rotating plate (72) abuts against the first positioning surface (63), its length direction is perpendicular to the axis of the locking screw (45) and facilitates the rotation of the screwing rod (61). When the rotating plate (72) rotates and abuts against the second positioning surface (64), it is in a vertical state and abuts against the cover (11) for positioning.

5. A modular steam screw compressor with adjustable clearance according to claim 4, characterized in that: The cover (11) is rotatably mounted with a positioning disc (65) that abuts against multiple rotating plates (72) for positioning.

6. A modular steam screw compressor with adjustable clearance according to claim 5, characterized in that: The rotor body (2) is provided with a rotating part (66) for easy rotation by force application, and the positioning plate (65) is provided with a limiting member (67) that slides and is sleeved on the rotating part (66) along the moving direction of the rotor body (2) for limiting.

7. A modular steam screw compressor with adjustable clearance according to claim 4, characterized in that: The rotating plate (72) is positioned by the friction between the rotating grooves (62), and the turning rod (61) is provided with a guide angle to facilitate the insertion and engagement with the locking screw (45).

8. A modular steam screw compressor with adjustable clearance according to claim 1, characterized in that: It also includes a sealing mechanism (5), which comprises: The container base (51) is rotatably mounted on the housing (1) and has a container slot (55). Multiple carbon rings (52) and multiple elastic elements (53) are spaced apart in the container groove (55). Each elastic element (53) presses against two adjacent carbon rings (52) and pushes the two carbon rings (52) to keep them away from each other, so that two of the carbon rings (52) are pressed against the container groove (55) for positioning. A first magnetic ring (56) is provided on the outer wall of each carbon ring (52). A bushing (54) is fitted on the rotor body (2) and has a sealing groove (57) on its inner side wall and extends to the inside of multiple carbon rings (52). A second magnetic ring (58) is provided on the sealing groove (57) that corresponds to multiple first magnetic rings (56) and generates a repulsive force on each of the multiple first magnetic rings (56).

9. A modular steam screw compressor with adjustable clearance according to claim 8, characterized in that: The housing (1) has a mounting port (14) at the end opposite to the adjustment port (13), and a gearbox (12) that seals the mounting port (14) is detachably mounted on the housing (1). The rotor body (2) includes: The female rotor (21) and the male rotor (22) mesh with each other and compress the medium; The drive assembly (3) is located inside the gearbox (12) and is used to drive the female rotor (21) and the male rotor (22) to rotate simultaneously in opposite directions.

10. A modular steam screw compressor with adjustable clearance according to claim 9, characterized in that: The driving component (3) includes: The drive gear (31) is rotatably mounted on the housing (1) and connected to the drive component; Driven gear (32) is mounted on female rotor (21) or male rotor (22) and meshes with driving gear (31); Two synchronous gears (33) are mounted on the female rotor (21) and the male rotor (22) and mesh with each other.

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