Back pressure steam turbine and compressor unit combined energy supply device and method of use thereof

Abstract

This invention provides a combined power supply device for a back-pressure steam turbine and a compressor unit, and its usage method, relating to the technical field of back-pressure steam turbines and compressor units. It includes: a flexible connection unit, a movable protection unit, a rotary mounting unit, and an intermittent detection unit. The movable protection unit is mounted on the flexible connection unit and also protects the back-pressure steam turbine and compressor unit. The rotary mounting unit is mounted on the movable protection unit. The intermittent detection unit is mounted on the rotary mounting unit. When the rotor in the compressor unit experiences abnormal jamming, the rotor connecting seat b stops rotating under the action of the compressor rotor, providing good protection for the back-pressure steam turbine and compressor unit. This invention solves the problem that the conventional method of connecting the back-pressure steam turbine and compressor unit via a diaphragm coupling results in a lack of adequate protection and easy damage to the back-pressure steam turbine and compressor unit.

Description

Technical Field

[0001] This invention belongs to the technical field of back-pressure steam turbines and compressor units, and more specifically, it relates to a combined power supply device for a back-pressure steam turbine and compressor unit and its usage method. Background Technology

[0002] Back-pressure steam turbines convert steam thermal energy into rotational mechanical energy. The coupling can precisely transmit torque to the compressor unit, ensuring the continuity and stability of energy transmission and avoiding power loss. Furthermore, it is difficult to achieve perfect alignment during unit installation, and displacement may occur during operation due to thermal expansion and vibration. The coupling can absorb axial, radial, and angular deviations, preventing damage to components due to stress concentration.

[0003] For example, patent application number CN202321553023.6 discloses a diaphragm coupling, which includes a connecting half-shaft, a diaphragm assembly, an intermediate half-shaft, a pressing half-shaft, and a pressure plate arranged sequentially in the front-back direction. A first friction plate is provided between the pressing half-shaft and the intermediate half-shaft, and a second friction plate is provided between the pressing half-shaft and the pressure plate. The intermediate half-shaft and the connecting half-shaft are locked together by a first locking structure, and the locked intermediate half-shaft and the connecting half-shaft press and clamp the diaphragm assembly. The intermediate half-shaft and the pressure plate are connected and locked together by a second locking structure, and the locked intermediate half-shaft and the pressure plate cause the first friction plate and the second friction plate to press and clamp the intermediate half-shaft. Through the structural design of the diaphragm coupling, the coupling structure can compensate for angular and axial displacements, reduce the vibration of the intermediate half-shaft in the coupling application, stabilize the frictional relationship between the intermediate half-shaft and the friction plate, and thus ensure stable output torque.

[0004] Based on the above, the couplings currently used on back-pressure steam turbines and compressor units still have the following problems: 1. Generally, diaphragm couplings are used to connect back-pressure steam turbines and compressor units, resulting in a lack of good protection functions and easy damage to back-pressure steam turbines and compressor units; 2. They usually do not have intermittent detection functions, and cannot prompt staff to carry out timely maintenance when the compressor unit malfunctions and jams. Summary of the Invention

[0005] This disclosure relates to a combined power supply device for a back-pressure steam turbine and a compressor unit, and its usage method. It includes a flexible connection unit, a movable protection unit, a rotating installation unit, and an intermittent detection unit. When the rotor in the compressor unit experiences abnormal jamming, the rotor connecting seat b stops rotating under the action of the compressor rotor, providing good protection for the back-pressure steam turbine and the compressor unit. When the rotor in the compressor unit experiences abnormal jamming, the intelligent controller controls two alarms to operate for a period of time, prompting personnel to promptly inspect and repair the compressor unit. This solves the problems of easily causing damage to the back-pressure steam turbine and compressor unit, and the inability to promptly prompt personnel to perform repairs when the compressor unit experiences abnormal jamming.

[0006] In a first aspect, this disclosure provides a combined power supply device for a back-pressure steam turbine and a compressor unit, comprising: a flexible connection unit, a movable protection unit, a rotary mounting unit, and an intermittent detection unit; the flexible connection unit is used to connect the turbine rotor; the movable protection unit is mounted on the flexible connection unit, and is used to connect the compressor rotor and also to protect the back-pressure steam turbine and the compressor unit; the rotary mounting unit is mounted on the movable protection unit; the intermittent detection unit is mounted on the rotary mounting unit, and is used to intermittently detect the connection status of the back-pressure steam turbine and the compressor unit.

[0007] In at least some embodiments, the elastic connection unit includes: a connection protection seat, a rotor connection seat a, and a rectangular feedback frame a; the inner wall of the connection protection seat is provided with two arc-shaped protection grooves; the rotor connection seat a is located on the right side of the connection protection seat; the rectangular feedback frame a is fixedly installed on the outside of the rotor connection seat a.

[0008] In at least some embodiments, the resilient connection unit further includes: a connecting screw, a resilient connecting sleeve, and a limiting screw; the connecting screw has one ring, and the ring of connecting screws is inserted into the connecting protection seat and the rotor connecting seat a; the resilient connecting sleeve has one ring, and the ring of resilient connecting sleeve is installed outside the ring of connecting screws, and the ring of resilient connecting sleeve contacts the connecting protection seat and the rotor connecting seat a; the limiting screw has one ring, and the ring of limiting screw is threaded to the right end of the ring of connecting screws.

[0009] In at least some embodiments, the active protection unit includes: a rotor connecting seat b, a rectangular feedback frame b, and an active protection rod; the rotor connecting seat b is rotatably mounted on the connecting protection seat; the rectangular feedback frame b is fixedly mounted on the outside of the rotor connecting seat b, and the rectangular feedback frame b is the same size as the rectangular feedback frame a; there are two active protection rods, and the two active protection rods are slidably mounted on the rotor connecting seat b; the outer ends of the two active protection rods are rounded, and the outer ends of the two active protection rods are inserted into two arc-shaped protection grooves.

[0010] In at least some embodiments, the movable protection unit further includes: a circular limiting plate and a protective spring; there are two circular limiting plates, and the two circular limiting plates are fixedly installed on the outside of the two movable protection rods; the protective spring is sleeved on the outside of the two movable protection rods, and the protective spring is located between the two circular limiting plates.

[0011] In at least some embodiments, the rotary mounting unit includes: a bearing, an L-shaped mounting base, and a movable positioning frame; the bearing is mounted on the rotor connecting seat b; the L-shaped mounting base is mounted on the bearing; and the movable positioning frame is slidably mounted on the L-shaped mounting base.

[0012] In at least some embodiments, the rotary mounting unit further includes: a rectangular limiting frame and a positioning pin; the rectangular limiting frame is fixedly mounted on the top of the movable positioning frame, and the bottom of the rectangular limiting frame contacts the L-shaped mounting base; the positioning pin is mounted on the movable positioning frame.

[0013] In at least some embodiments, the intermittent detection unit includes: a lithium battery, an intelligent controller, an alarm, and an electric telescopic rod; the lithium battery is fixedly installed at the bottom of the L-shaped mounting base; the intelligent controller is fixedly installed at the bottom of the L-shaped mounting base, and the lithium battery is electrically connected to the intelligent controller; two alarms are provided, and the two alarms are fixedly installed on the intelligent controller and electrically connected to the intelligent controller; the electric telescopic rod is fixedly installed on the L-shaped mounting base, and the electric telescopic rod is electrically connected to the intelligent controller.

[0014] In at least some embodiments, the intermittent detection unit further includes: an I-shaped lifting base, detection buttons, and rectangular pressing frames; the I-shaped lifting base is fixedly mounted on the output shaft of the electric telescopic rod; there are two detection buttons, which are fixedly mounted on the I-shaped lifting base and electrically connected to the intelligent controller; there are two rectangular pressing frames, which are slidably mounted on the I-shaped lifting base and contact the two detection buttons.

[0015] In another aspect, this disclosure provides a method for using a combined back-pressure steam turbine and compressor unit power supply device, comprising the following steps: 1) Connect rotor connector a to the turbine rotor, and then connect rotor connector b to the compressor rotor; 2) Insert a ring of connecting screws into the connecting protection seat and rotor connecting seat a, and then thread a ring of limit screws onto the right end of the ring of connecting screws. 3) Adjust the height of the movable positioning frame appropriately, and then use a wrench to connect the positioning pin to the metal bracket on the back pressure steam turbine or compressor unit; 4) The electric telescopic pole is intermittently controlled by an intelligent controller; 5) When both alarms continue to sound, staff should promptly inspect and repair the compressor unit.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, the setting of a ring of connecting screws and a ring of limiting screws enables precise connection between the turbine rotor and the compressor rotor; the setting of a ring of elastic connecting sleeve allows the position between the connecting protection seat and the rotor connecting seat a to change slightly, thus achieving a certain position compensation effect.

[0017] 2. In this invention, the connecting protection seat and the rotor connecting seat b can rotate simultaneously under the action of two arc-shaped protective grooves and two movable protective rods. When the rotor in the compressor unit becomes abnormally stuck, the rotor connecting seat b stops rotating under the action of the compressor rotor. When the turbine rotor continues to rotate, the two movable protective rods can automatically move inward a certain distance after being subjected to force, so that the connecting protection seat and the rotor connecting seat b cannot rotate simultaneously, thus playing a good protective role for the back pressure steam turbine and the compressor unit.

[0018] 3. In this invention, when the intelligent controller controls the output shaft of the electric telescopic rod to extend, the I-shaped lifting seat drives the two detection buttons and the two rectangular pressing frames to move upward a certain distance. When the rotor in the compressor unit is not abnormal, the two detection buttons are pressed and released simultaneously. At this time, the intelligent controller does not control the two alarms to work. When the rotor in the compressor unit is abnormally stuck, the two detection buttons cannot be pressed or released simultaneously. At this time, the intelligent controller controls the two alarms to work for a period of time, which can prompt the staff to repair the compressor unit in time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram: Figure 1 A three-dimensional structural schematic diagram of the present invention is shown; Figure 2 A schematic diagram of the structure of the elastic connection unit of the present invention is shown; Figure 3 The present invention is shown. Figure 1 A magnified schematic diagram of a portion of region A in the middle; Figure 4 A schematic diagram of the active protection unit of the present invention is shown; Figure 5 The present invention is shown. Figure 1 A schematic diagram of the central cross-section structure; Figure 6 The present invention is shown. Figure 5 A magnified schematic diagram of a portion of region B in the middle; Figure 7 A schematic diagram of the rotating mounting unit of the present invention is shown; Figure 8 The present invention is shown. Figure 1 A schematic diagram of the structure from the perspective of the viewpoint; Figure 9 The present invention is shown. Figure 1 A schematic diagram of the bottom view structure; Figure 10 A schematic diagram of the structure of the L-shaped mounting base and intermittent detection unit of the present invention is shown.

[0022] List of reference numerals in the attached diagram: 100. Flexible connection unit; 101. Connection protection seat; 1011. Arc-shaped protection groove; 102. Rotor connection seat a; 103. Rectangular feedback frame a; 104. Connection screw; 105. Flexible connection sleeve; 106. Limit screw; 200. Active protection unit; 201. Rotor connecting seat b; 202. Rectangular feedback frame b; 203. Active protection rod; 204. Circular limit plate; 205. Protective spring; 300. Rotary mounting unit; 301. Bearing; 302. L-shaped mounting base; 303. Movable positioning frame; 304. Rectangular limiting frame; 305. Positioning pin; 400. Intermittent detection unit; 401. Lithium battery; 402. Intelligent controller; 403. Alarm; 404. Electric telescopic rod; 405. I-shaped lifting seat; 406. Detection button; 407. Rectangular pressing frame. Detailed Implementation

[0023] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0024] Example: Please refer to Figures 1 to 10As shown: This invention provides a combined power supply device for a back-pressure steam turbine and a compressor unit, comprising: a flexible connection unit 100, a movable protection unit 200, a rotary mounting unit 300, and an intermittent detection unit 400; the flexible connection unit 100 is used to connect the steam turbine rotor; the movable protection unit 200 is mounted on the flexible connection unit 100, and is used to connect the compressor rotor, and also to protect the back-pressure steam turbine and the compressor unit; the rotary mounting unit 300 is mounted on the movable protection unit 200; the intermittent detection unit 400 is mounted on the rotary mounting unit 300, and is used to intermittently detect the connection status of the back-pressure steam turbine and the compressor unit.

[0025] In this embodiment of the disclosure, such as Figure 2 and Figure 3 As shown, the flexible connection unit 100 includes: a connection protection seat 101, a rotor connection seat a102, and a rectangular feedback frame a103; the inner wall of the connection protection seat 101 has two arc-shaped protection grooves 1011; the rotor connection seat a102 is located on the right side of the connection protection seat 101; the rectangular feedback frame a103 is fixedly installed on the outside of the rotor connection seat a102; the flexible connection unit 100 also includes: a connection screw 104, an flexible connection sleeve 105, and a limiting screw 106; The connecting screw 104 has one ring, and the ring of connecting screw 104 is inserted into the connecting protection seat 101 and the rotor connecting seat a102; the elastic connecting sleeve 105 has one ring, and the ring of elastic connecting sleeve 105 is installed outside the ring of connecting screw 104, and the ring of elastic connecting sleeve 105 contacts the connecting protection seat 101 and the rotor connecting seat a102; the limiting screw 106 has one ring, and the ring of limiting screw 106 is threaded to the right end of the ring of connecting screw 104.

[0026] The specific function of the flexible connection unit 100 is as follows: because a ring of connecting screws 104 is inserted into the connecting protection seat 101 and the rotor connecting seat a102, and a ring of limiting screws 106 is threaded to the right end of the ring of connecting screws 104, the turbine rotor and the compressor rotor are precisely connected; and because a ring of flexible connecting sleeves 105 is installed outside the ring of connecting screws 104, and the ring of flexible connecting sleeves 105 contacts the connecting protection seat 101 and the rotor connecting seat a102, the position between the connecting protection seat 101 and the rotor connecting seat a102 can change slightly, which plays a certain position compensation role.

[0027] In this embodiment of the disclosure, such as Figures 4 to 6As shown, the active protection unit 200 includes: a rotor connecting seat b201, a rectangular feedback frame b202, and an active protection rod 203; the rotor connecting seat b201 is rotatably mounted on the connecting protection seat 101; the rectangular feedback frame b202 is fixedly mounted on the outside of the rotor connecting seat b201, and the rectangular feedback frame b202 is the same size as the rectangular feedback frame a103; there are two active protection rods 203, and the two active protection rods 203 are slidably mounted on the rotor connecting seat b201; the outer ends of the two active protection rods 203 are rounded, and the outer ends of the two active protection rods 203 are inserted into two arc-shaped protection grooves 1011; the active protection unit 200 also includes: a circular limiting plate 204 and a protective spring 205; there are two circular limiting plates 204, and the two circular limiting plates 204 are fixedly mounted on the outside of the two active protection rods 203; the protective spring 205 is sleeved on the outside of the two active protection rods 203, and the protective spring 205 is located between the two circular limiting plates 204.

[0028] The specific function of the movable protection unit 200 is as follows: Because the inner wall of the connecting protection seat 101 has two arc-shaped protection grooves 1011, and two movable protection rods 203 are slidably mounted on the rotor connecting seat b201, with the outer ends of the two movable protection rods 203 inserted into the two arc-shaped protection grooves 1011, the connecting protection seat 101 and the rotor connecting seat b201 can rotate simultaneously under the action of the two arc-shaped protection grooves 1011 and the two movable protection rods 203; and because the outer ends of the two movable protection rods 203 have rounded corners, and The protective spring 205 is sleeved on the outside of the two movable protective rods 203 and is located between the two circular limit plates 204. When the rotor in the compressor unit is abnormally jammed, the rotor connecting seat b201 stops rotating under the action of the compressor rotor. When the turbine rotor continues to rotate, the two movable protective rods 203 can automatically move inward a certain distance after being subjected to force, so that the connecting protective seat 101 and the rotor connecting seat b201 cannot rotate at the same time, which plays a good protective role for the back pressure steam turbine and the compressor unit.

[0029] In this embodiment of the disclosure, such as Figures 7 to 10 As shown, the rotary mounting unit 300 includes: a bearing 301, an L-shaped mounting base 302, and a movable positioning frame 303; the bearing 301 is mounted on the rotor connecting seat b201; the L-shaped mounting base 302 is mounted on the bearing 301; the movable positioning frame 303 is slidably mounted on the L-shaped mounting base 302; the rotary mounting unit 300 also includes: a rectangular limiting frame 304 and a positioning pin 305; the rectangular limiting frame 304 is fixedly mounted on the top of the movable positioning frame 303, and the bottom of the rectangular limiting frame 304 contacts the L-shaped mounting base 302; the positioning pin 305 is mounted on the movable positioning frame 303.

[0030] The intermittent detection unit 400 includes: a lithium battery 401, an intelligent controller 402, an alarm 403, and an electric telescopic rod 404; the lithium battery 401 is fixedly installed at the bottom of the L-shaped mounting base 302; the intelligent controller 402 is fixedly installed at the bottom of the L-shaped mounting base 302, and the lithium battery 401 is electrically connected to the intelligent controller 402; two alarms 403 are provided, and both alarms 403 are fixedly installed on the intelligent controller 402, and both alarms 403 are electrically connected to the intelligent controller 402; the electric telescopic rod 404 is fixedly installed on the L-shaped mounting base 302, and the electric telescopic rod 404 is electrically connected to the intelligent controller 402. The intelligent controller 402 is electrically connected; the intermittent detection unit 400 also includes: an I-shaped lifting seat 405, detection buttons 406, and rectangular pressing frames 407; the I-shaped lifting seat 405 is fixedly installed on the output shaft of the electric telescopic rod 404; there are two detection buttons 406, and the two detection buttons 406 are fixedly installed on the I-shaped lifting seat 405, and the two detection buttons 406 are electrically connected to the intelligent controller 402; there are two rectangular pressing frames 407, and the two rectangular pressing frames 407 are slidably installed on the I-shaped lifting seat 405, and the two rectangular pressing frames 407 are in contact with the two detection buttons 406.

[0031] The specific functions of the rotating mounting unit 300 and the intermittent detection unit 400 are as follows: Since the bearing 301 is mounted on the rotor connecting seat b201 and the L-shaped mounting seat 302 is mounted on the bearing 301, the L-shaped mounting seat 302 remains stationary under the action of the bearing 301; since the movable positioning frame 303 is slidably mounted on the L-shaped mounting seat 302 and the rectangular limiting frame 304 is fixedly mounted on the top of the movable positioning frame 303, and the positioning pin 305 is mounted on the movable positioning frame 303, it plays an auxiliary positioning role for the L-shaped mounting seat 302, ensuring that the L-shaped mounting seat 302 is in a stable state when the back pressure steam turbine and compressor unit are working; Furthermore, since the I-shaped lifting seat 405 is fixedly installed on the output shaft of the electric telescopic rod 404, and the two detection buttons 406 are fixedly installed on the I-shaped lifting seat 405, and the two rectangular pressing frames 407 are in contact with the two detection buttons 406, when the intelligent controller 402 controls the output shaft of the electric telescopic rod 404 to extend, the I-shaped lifting seat 405 drives the two detection buttons 406 and the two rectangular pressing frames 407 to move upward a certain distance; and since the rectangular feedback frame a103 is fixedly installed on the outside of the rotor connecting seat a102, and the rectangular feedback frame b202 is fixedly installed... Outside the rotor connecting seat b201, and with two alarms 403 electrically connected to the intelligent controller 402, when the rotor in the compressor unit is not abnormal, the two detection buttons 406 are pressed and released simultaneously. At this time, the intelligent controller 402 does not control the two alarms 403 to work. When the rotor in the compressor unit is abnormally stuck, the two detection buttons 406 cannot be pressed or released simultaneously. At this time, the intelligent controller 402 controls the two alarms 403 to work for a period of time, which can prompt the staff to repair the compressor unit in time.

[0032] This invention provides a method for using a combined back-pressure steam turbine and compressor unit power supply device, comprising the following steps: 1) Connect rotor connecting seat a102 to the turbine rotor, and then connect rotor connecting seat b201 to the compressor rotor; 2) Insert a ring of connecting screws 104 into the connecting protection seat 101 and the rotor connecting seat a102, and then thread a ring of limiting screws 106 onto the right end of the ring of connecting screws 104. 3) Adjust the height of the movable positioning bracket 303 appropriately, and then connect the positioning pin 305 to the metal bracket on the back pressure steam turbine or compressor unit using a wrench; 4) The electric telescopic pole 404 is intermittently controlled by the intelligent controller 402; 5) When both alarms 403 continue to sound, staff should promptly inspect and repair the compressor unit.

[0033] The specific usage and function of this embodiment are as follows: In use, this invention first connects the rotor connecting seat a102 to the turbine rotor, and then connects the rotor connecting seat b201 to the compressor rotor. A ring of connecting screws 104 is inserted into the connecting protection seat 101 and the rotor connecting seat a102, allowing a slight change in position between them, thus providing a certain positional compensation effect. A ring of limiting screws 106 is then threaded onto the right end of the ring of connecting screws 104, achieving a precise connection between the turbine rotor and the compressor rotor. The height of the movable positioning frame 303 is adjusted appropriately, and then the positioning pin 305 is connected to the metal bracket on the back-pressure steam turbine or compressor unit using a wrench. The electric telescopic rod 404 is intermittently controlled by the intelligent controller 402. When the rotor in the compressor unit becomes abnormally jammed, the rotor connecting seat b201 stops rotating under the action of the compressor rotor. When the turbine rotor… When rotation continues, the two movable protective rods 203, under force, can automatically move inward a certain distance, preventing the connecting protective seat 101 and the rotor connecting seat b201 from rotating simultaneously, thus providing good protection for the back-pressure steam turbine and compressor unit. When the intelligent controller 402 controls the output shaft of the electric telescopic rod 404 to extend, the I-shaped lifting seat 405 drives the two detection buttons 406 and the two rectangular pressing frames 407 to move upward a certain distance. When the rotor in the compressor unit is not abnormal, the two detection buttons 406 are pressed and released simultaneously. At this time, the intelligent controller 402 does not control the two alarms 403 to work. When the rotor in the compressor unit is abnormally jammed, the two detection buttons 406 cannot be pressed or released simultaneously. At this time, the intelligent controller 402 controls the two alarms 403 to work for a period of time, which can prompt the staff to repair the compressor unit in time.

[0034] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0035] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0036] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A combined power supply device for a back-pressure steam turbine and a compressor unit, comprising: The system comprises a flexible connection unit (100), a movable protection unit (200), a rotary mounting unit (300), and an intermittent detection unit (400); characterized in that the flexible connection unit (100) is used to connect a steam turbine rotor; the movable protection unit (200) is mounted on the flexible connection unit (100), and is used to connect a compressor rotor, and is also used to protect the back-pressure steam turbine and the compressor unit; the rotary mounting unit (300) is mounted on the movable protection unit (200); and the intermittent detection unit (400) is mounted on the rotary mounting unit (300), and is used to intermittently detect the connection status of the back-pressure steam turbine and the compressor unit.

2. The combined power supply device of a back-pressure steam turbine and a compressor unit according to claim 1, characterized in that, The elastic connection unit (100) includes: a connection protection seat (101), a rotor connection seat a (102), and a rectangular feedback frame a (103); the inner wall of the connection protection seat (101) is provided with two arc-shaped protection grooves (1011); the rotor connection seat a (102) is located on the right side of the connection protection seat (101); the rectangular feedback frame a (103) is fixedly installed on the outside of the rotor connection seat a (102).

3. The combined power supply device of a back-pressure steam turbine and a compressor unit according to claim 2, characterized in that, The elastic connection unit (100) further includes: a connecting screw (104), an elastic connecting sleeve (105), and a limiting screw (106); the connecting screw (104) has one ring, and the ring of connecting screws (104) is inserted into the connecting protection seat (101) and the rotor connecting seat a (102); the elastic connecting sleeve (105) has one ring, and the ring of elastic connecting sleeve (105) is installed outside the ring of connecting screws (104), and the ring of elastic connecting sleeve (105) contacts the connecting protection seat (101) and the rotor connecting seat a (102); the limiting screw (106) has one ring, and the ring of limiting screw (106) is threaded to the right end of the ring of connecting screws (104).

4. The combined power supply device of a back-pressure steam turbine and a compressor unit according to claim 3, characterized in that, The active protection unit (200) includes: a rotor connecting seat b (201), a rectangular feedback frame b (202), and an active protection rod (203); the rotor connecting seat b (201) is rotatably mounted on the connecting protection seat (101); the rectangular feedback frame b (202) is fixedly mounted on the outside of the rotor connecting seat b (201), and the rectangular feedback frame b (202) is the same size as the rectangular feedback frame a (103); there are two active protection rods (203), and the two active protection rods (203) are slidably mounted on the rotor connecting seat b (201); the outer ends of the two active protection rods (203) are rounded, and the outer ends of the two active protection rods (203) are inserted into two arc-shaped protection grooves (1011).

5. The combined power supply device of a back-pressure steam turbine and a compressor unit according to claim 4, characterized in that, The active protection unit (200) further includes: a circular limiting plate (204) and a protective spring (205); there are two circular limiting plates (204), and the two circular limiting plates (204) are fixedly installed on the outside of the two active protection rods (203); the protective spring (205) is sleeved on the outside of the two active protection rods (203), and the protective spring (205) is located between the two circular limiting plates (204).

6. The combined power supply device of a back-pressure steam turbine and a compressor unit according to claim 4, characterized in that, The rotary mounting unit (300) includes: a bearing (301), an L-shaped mounting base (302), and a movable positioning frame (303); the bearing (301) is mounted on the rotor connecting seat b (201); the L-shaped mounting base (302) is mounted on the bearing (301); and the movable positioning frame (303) is slidably mounted on the L-shaped mounting base (302).

7. A combined power supply device for a back-pressure steam turbine and a compressor unit according to claim 6, characterized in that, The rotating mounting unit (300) further includes: a rectangular limiting frame (304) and a positioning pin (305); the rectangular limiting frame (304) is fixedly mounted on the top of the movable positioning frame (303), and the bottom of the rectangular limiting frame (304) is in contact with the L-shaped mounting base (302); the positioning pin (305) is mounted on the movable positioning frame (303).

8. The combined power supply device of a back-pressure steam turbine and a compressor unit according to claim 7, characterized in that, The intermittent detection unit (400) includes: a lithium battery (401), an intelligent controller (402), an alarm (403), and an electric telescopic rod (404); the lithium battery (401) is fixedly installed at the bottom of the L-shaped mounting base (302); the intelligent controller (402) is fixedly installed at the bottom of the L-shaped mounting base (302), and the lithium battery (401) is electrically connected to the intelligent controller (402); there are two alarms (403), and the two alarms (403) are fixedly installed on the intelligent controller (402), and the two alarms (403) are electrically connected to the intelligent controller (402); the electric telescopic rod (404) is fixedly installed on the L-shaped mounting base (302), and the electric telescopic rod (404) is electrically connected to the intelligent controller (402).

9. A combined power supply device for a back-pressure steam turbine and a compressor unit according to claim 8, characterized in that, The intermittent detection unit (400) further includes: an I-shaped lifting seat (405), detection buttons (406), and rectangular pressing frames (407); the I-shaped lifting seat (405) is fixedly installed on the output shaft of the electric telescopic rod (404); there are two detection buttons (406), and the two detection buttons (406) are fixedly installed on the I-shaped lifting seat (405), and the two detection buttons (406) are electrically connected to the intelligent controller (402); there are two rectangular pressing frames (407), and the two rectangular pressing frames (407) are slidably installed on the I-shaped lifting seat (405), and the two rectangular pressing frames (407) are in contact with the two detection buttons (406).

10. A method of using a back-pressure steam turbine and compressor unit combined power supply device, applied in the back-pressure steam turbine and compressor unit combined power supply device as described in claim 8, characterized in that, The steps are as follows: 1) Connect rotor connecting seat a (102) to the turbine rotor, and then connect rotor connecting seat b (201) to the compressor rotor; 2) Insert a connecting screw (104) into the connecting protection seat (101) and the rotor connecting seat a (102), and then thread a limiting screw (106) onto the right end of the connecting screw (104); 3) Adjust the height of the movable positioning bracket (303) appropriately, and then connect the positioning pin (305) to the metal bracket on the back pressure steam turbine or compressor unit using a wrench; 4) The electric telescopic pole (404) is intermittently controlled by the intelligent controller (402); 5) When the two alarms (403) continue to sound, the staff should promptly inspect and repair the compressor unit.

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