A steam turbine large shaft jacking height automatic adjusting system

Abstract

The embodiment of the present disclosure provides a steam turbine large shaft lifting height automatic adjusting system, which comprises: a measuring assembly arranged on a steam turbine bearing end cover and used for detecting the moving height of a steam turbine large shaft; an adjusting assembly connected with a top shaft oil system and a steam turbine bearing respectively and used for supplying oil to the steam turbine bearing; and a controller electrically connected with the measuring assembly and the adjusting assembly respectively, so as to adjust the oil supply amount according to the height of the steam turbine large shaft detected by the measuring assembly. In the adjusting system of the embodiment of the present disclosure, the measuring assembly is arranged on the steam turbine bearing end cover, so that the measurement error caused by temporarily erecting a measuring instrument is prevented, the measurement is more accurate, automatic measurement and adjustment of the large shaft height are realized through the controller, the work efficiency is improved, and irreversible damage of equipment is avoided.

Description

Technical Field

[0001] This disclosure pertains to the technical field of steam turbine equipment, specifically relating to an automatic adjustment system for the jacking height of a steam turbine main shaft. Background Technology

[0002] Before starting the steam turbine in a power plant, the height of the turbine shaft must be adjusted. Only after the shaft height meets the design requirements can the turbine shaft be rotated. Otherwise, insufficient oil film on the turbine shaft will cause bearing wear, or even damage to the turbine due to dynamic and static friction.

[0003] The periodic height adjustment of the main shaft needs to be repeated after each turbine overhaul. This operation is complex, especially in units with a large number of bearings, where the height needs to be adjusted for each bearing individually. In practice, differences in the installation of field instruments and the experience of personnel can lead to uncontrollable adjustment errors, ultimately resulting in low work efficiency or even irreversible damage to the equipment. Summary of the Invention

[0004] The present disclosure aims to at least solve one of the technical problems existing in the prior art, and to provide an automatic adjustment system for the jacking height of a steam turbine shaft.

[0005] This disclosure provides an automatic adjustment system for the jacking height of a steam turbine main shaft. The system includes: a measuring component mounted on the end cover of the steam turbine bearing for detecting the movement height of the steam turbine main shaft; an adjusting component connected to both the jacking oil system and the steam turbine bearing for supplying oil to the steam turbine bearing; and a controller electrically connected to both the measuring component and the adjusting component to adjust the oil supply based on the height of the steam turbine main shaft detected by the measuring component.

[0006] Optionally, the measuring component includes: a displacement measuring element and a measuring sensor, wherein a first end of the displacement measuring element is disposed on the bearing end cover, and the end of the first end of the displacement measuring element abuts against the turbine shaft; the measuring sensor is connected to the displacement measuring element and the controller respectively, so as to transmit the measurement result of the displacement measuring element to the controller.

[0007] Optionally, the measuring assembly further includes: a mounting cylinder having a mounting cavity with openings at both ends, a fixing part being provided at the first end of the mounting cylinder for connecting with the bearing end cover; the first end of the displacement measuring element is movably disposed in the mounting cavity.

[0008] Optionally, the displacement measuring component is a dial indicator, the fixing rod of the dial indicator is movably disposed in the mounting cavity, and the fixing rod of the dial indicator is provided with a limiting groove in the circumference; the side wall of the mounting cavity is provided with a limiting part corresponding to the limiting groove.

[0009] Optionally, the limiting part is a mounting groove; the measuring component further includes: an elastic limiting member and a pressure measuring member, the first end of the elastic limiting member is connected to the pressure measuring member, and the second end of the elastic limiting member abuts against the limiting groove; the pressure measuring member is disposed in the mounting groove, and the pressure measuring member is connected to the controller to send the detected pressure information to the controller.

[0010] Optionally, the sidewall of the mounting cavity is provided with at least two sets of mounting grooves, and two mounting grooves are symmetrically arranged in each set along the radial direction of the mounting cavity; the two sets of mounting grooves are located at the measurement position and the non-measurement position, respectively; the limiting groove selectively abuts against the elastic limiting member of one of the two sets of mounting grooves.

[0011] Optionally, when the mounting cavity sidewall is provided with at least two sets of mounting slots, the pressure measuring element will send the detected measurement position or non-measurement position of the displacement measuring element to the controller.

[0012] Optionally, multiple measuring components are provided, and the multiple measuring components are respectively provided on the corresponding turbine bearing end cover.

[0013] Optionally, the regulating component includes: a jacking oil regulating valve, an oil supply pipeline, and a pipeline pressure measuring instrument; the jacking oil regulating valve is disposed on the oil supply pipeline; both ends of the oil supply pipeline are respectively connected to the main oil supply pipeline of the jacking oil system and the turbine bearing; the pipeline pressure measuring instrument is disposed on the main oil supply pipeline, and the pipeline pressure measuring instrument and the jacking oil regulating valve are respectively electrically connected to the controller.

[0014] Optionally, when the measuring component is in the measuring position and the pipeline pressure detected by the pipeline pressure measuring instrument meets the system operation requirements, after receiving the adjustment signal and the adjustment target, the controller controls the jacking oil regulating valve according to the measurement value of the measuring component to control the amount of jacking oil entering the turbine bearing and adjust the turbine shaft to the target height.

[0015] In the automatic adjustment system for the jacking height of the turbine main shaft of this disclosure, the measuring component is set on the turbine, making the measurement more accurate; moreover, the measuring component and the adjustment component are connected through a controller to realize the automatic measurement and adjustment of the turbine main shaft height, which greatly reduces the labor intensity of operators and improves the work efficiency of personnel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation position of the measuring component of an automatic adjustment system for the lifting height of a steam turbine shaft according to an embodiment of this disclosure;

[0017] Figure 2 This is a schematic diagram of the measuring component structure of an automatic adjustment system for the lifting height of a steam turbine main shaft according to an embodiment of the present disclosure;

[0018] Figure 3 This is a schematic diagram of the structure of an automatic adjustment system for the lifting height of a steam turbine shaft according to an embodiment of the present disclosure.

[0019] In the picture:

[0020] 1. First measuring component; 2. Second measuring component; 3. Third measuring component; 4. Fourth measuring component; 5. First bearing; 6. Second bearing; 7. Third bearing; 8. Fourth bearing; 9. First jacking oil regulating valve; 10. Second jacking oil regulating valve; 11. Third jacking oil regulating valve; 12. Fourth jacking oil regulating valve; 13. Fifth jacking oil regulating valve; 14. Sixth jacking oil regulating valve; 15. Seventh jacking oil regulating valve; 16. Eighth jacking oil regulating valve; 17. Jacking oil system; 171. Pipeline pressure measuring instrument; 18. Controller; 19. Fastener; 20. Second pressure sensor; 21. First pressure sensor; 22. Displacement measuring element; 23. Limiting groove; 24. Second elastic limiting element; 25. First elastic limiting element; 26. Bearing end cover; 27. Steam turbine main shaft; 28. Mounting cylinder; 281. Fixing part. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of the embodiments of this disclosure, the embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] like Figure 1 and Figure 2 As shown, an automatic adjustment system for the jacking height of a steam turbine main shaft is disclosed. The system includes: a measuring component (not shown in the figure), which is installed on the turbine bearing end cover 26 and is used to detect the moving height of the steam turbine main shaft 27; an adjusting component (not shown in the figure), which is connected to the jacking oil system 17 and the steam turbine bearing respectively to supply oil to the steam turbine bearing; and a controller 18, which is electrically connected to the measuring component and the adjusting component respectively to adjust the oil supply according to the height of the steam turbine main shaft 27 detected by the measuring component.

[0023] Specifically, the automatic adjustment system for the turbine main shaft jacking height in this embodiment is mainly used for the periodic automatic adjustment of the turbine main shaft height. The measuring component monitors the height of the turbine main shaft 27 and feeds it back to the controller 18. The measuring component is detachably mounted on the turbine bearing end cover, or it can be detachably mounted on the turbine partition. By using the partition to mount the measuring component on the bearing end cover, the measuring component is convenient to use and easy to install and remove, avoiding errors caused by temporarily setting up measuring instruments, thus preventing inaccurate adjustment of the turbine main shaft height.

[0024] The adjusting component is connected to the jacking oil system 17 to supply jacking oil to the turbine bearing, thus lifting the turbine main shaft 27. Specifically, the controller 18 controls the amount of oil supplied by the adjusting component to the turbine bearing end cover 26 based on the height of the turbine main shaft 27 detected by the receiving measuring component, thereby adjusting the height of the turbine main shaft 27. The controller 18 can be a programmable logic controller (PLC). The adjusting system of this embodiment can realize automatic measurement and adjustment of the turbine main shaft height after turbine maintenance, avoiding the problem that existing systems may cause uncontrollable shaft adjustment errors due to differences in the installation of field instruments and personnel experience, ultimately leading to low work efficiency or even irreversible equipment damage. This greatly improves adjustment accuracy, reduces the labor intensity of operators, and improves work efficiency.

[0025] As a specific example of a measuring component, the measuring component includes: a displacement measuring element 22 and a measuring sensor (not shown in the figure), wherein the first end of the displacement measuring element 22 is disposed on the bearing end cover 26, and the end of the first end of the displacement measuring element 22 abuts against the turbine shaft 27;

[0026] The measuring sensor is connected to the displacement measuring element 22 and the controller 18 respectively, so as to transmit the measurement result of the displacement measuring element 22 to the controller 18.

[0027] Specifically, the first end of the displacement measuring element 22 is movable relative to the second end of the displacement measuring element 22. Thus, after the first end of the displacement measuring element abuts against the turbine shaft, when the height of the turbine shaft changes, the first end of the displacement measuring element moves accordingly, causing the measured value of the displacement measuring element to change, thereby achieving the purpose of measuring the height of the turbine shaft. The measuring sensor is connected to the displacement sensor, which can transmit the measurement results of the displacement measuring element to the controller in real time.

[0028] As a specific example of the measuring component, the measuring component further includes: a mounting cylinder 28 having a mounting cavity with openings at both ends, and a fixing part 281 provided at the first end of the mounting cylinder 28 for connecting with the bearing end cover 26;

[0029] The first end of the displacement measuring element 22 is movably disposed in the mounting cavity.

[0030] Specifically, such as Figure 2 As shown, the fixing part 281 is detachably connected to the bearing end cover 26. The fixing part 281 is provided with a first fixing hole, and the bearing end cover 26 is provided with a second fixing hole corresponding to the first fixing hole. A fastener 19 passes through the first fixing hole and the second fixing hole to fix the mounting cylinder 28 to the bearing end cover 26. Both the first fixing hole and the second fixing hole are threaded holes, and the fastener 19 is a bolt, making the assembly and disassembly of the mounting cylinder simple and convenient. The outer diameter of the fixing part 281 is larger than the outer diameter of the second end of the mounting cylinder 28. Two first fixing holes can be symmetrically arranged radially along the mounting cylinder 28, making the mounting cylinder more stable. The first end of the displacement measuring element 22 can move within the mounting cavity to adjust the position of the displacement measuring element 22.

[0031] As a specific example of a measuring component, the displacement measuring element 22 is a dial indicator, the fixing rod of the dial indicator is movably disposed in the mounting cavity, and the fixing rod of the dial indicator is provided with a limiting groove 23 in the circumferential direction; the side wall of the mounting cavity is provided with a limiting part corresponding to the limiting groove 23.

[0032] Specifically, the limiting groove 23 is an annular groove, and the displacement measuring component 22 is a dial indicator or other convenient measuring instrument for measurement and reading. The dial indicator includes: a dial (not shown in the figure), a fixed rod (not shown in the figure), and a probe (not shown in the figure). The dial is connected to the fixed rod, and a precision rack and pinion mechanism is provided inside the dial (details omitted here). The probe is movably disposed inside the fixed rod, and the probe abuts against the turbine shaft. A limiting groove 23 is provided on the fixed rod of the dial indicator, and a limiting part (not shown in the figure) corresponding to the limiting groove 23 is provided on the side wall of the mounting cavity. The limiting part can be a protrusion, which is not limited here. The limiting groove 23 cooperates with the limiting part, and the fixed rod can be easily moved and fixed within the mounting cavity. The measuring sensor is connected to the dial indicator. Generally, the measuring sensor is connected to the pointer of the dial indicator. When the pointer of the dial indicator rotates, the measuring sensor transmits the detection result to the controller.

[0033] As a specific example of the measuring component, the limiting part is a mounting groove (not shown in the figure); the measuring component also includes: an elastic limiting member (not shown in the figure) and a pressure measuring member (not shown in the figure), the first end of the elastic limiting member is connected to the pressure measuring member, and the second end of the elastic limiting member abuts against the limiting groove 23; the pressure measuring member is disposed in the mounting groove, and the pressure measuring member is connected to the controller 18 to send the detected pressure information to the controller 18.

[0034] Specifically, such as Figure 2 As shown, the second end of the elastic limiting member is provided with a probe (not shown in the figure), which abuts against the fixed rod or the limiting groove 23. The elastic limiting member can be a spring. The pressure measuring component can be a pressure sensor or other pressure measuring device, which is not limited here. Assemble the measuring component, placing the elastic limiting member and the pressure measuring member in the mounting groove. Insert the fixing rod of the dial indicator into the mounting cavity, where the fixing rod compresses the probe. The elastic limiting member is in a compressed state. When the limiting groove of the fixing rod moves to the corresponding position in the mounting groove, the probe enters the limiting groove to fix the dial indicator, and the elastic limiting member is in an extended state. The pressure measured by the pressure measuring member changes, and the pressure measurement result is transmitted to the controller. When the dial indicator is removed, the probe disengages from the limiting groove during the movement of the fixing rod, causing the elastic limiting member to change from an extended state to a compressed state. The pressure value detected by the pressure measuring member changes, indicating the extension / retraction state of the elastic limiting member. The pressure measuring member transmits the measured value to the controller, which determines the position of the dial indicator based on the detection result of the pressure measuring member. When the elastic limiting member abuts against the limiting groove 23, the elastic limiting member is in a stretched state. At this time, the dial indicator is in the measuring position, and the pressure measuring component transmits the detected pressure value corresponding to the measuring position to the controller. The controller determines that the dial indicator is in the measuring position. When the dial indicator is in the measuring position, the measuring component can measure the height of the turbine shaft.

[0035] As a specific example of the measuring component, the sidewall of the mounting cavity is provided with at least two sets of mounting grooves, and two mounting grooves are symmetrically arranged in each set along the radial direction of the mounting cavity; the two sets of mounting grooves are located at the measuring position and the non-measuring position, respectively; the limiting groove 23 selectively abuts against the elastic limiting member of one of the two sets of mounting grooves.

[0036] Specifically, the mounting slot at the measurement position is provided with a first elastic limiting member 25 and a first pressure sensor 21, while the mounting slot at the non-measurement position is provided with a second elastic limiting member 24 and a second pressure sensor 20.

[0037] When the dial indicator is in the measuring position, the limiting groove 23 engages with the first elastic limiting member 25 in the measuring position. This elastic limiting member, also known as a spring clip, extends in the measuring position, while the second elastic limiting member 24 in the non-measuring position is compressed. Figure 1 As shown, when the dial indicator is in a non-measuring position, the limiting groove 23 engages with the second elastic limiting member 24 in the non-measuring position, causing the second elastic limiting member 24 to extend, while the first elastic limiting member 25 in the measuring position is compressed. When the elastic limiting member is in different states of tension and contraction, the pressure measuring element detects different pressure measurement values, thereby determining the different states of the elastic limiting member and obtaining the position information of the dial indicator. When the dial indicator moves within the mounting cavity, the controller can monitor the position of the dial indicator based on the measurement values ​​of the pressure measuring element in different states of the elastic limiting member. The adjustment system of this embodiment has a means of monitoring the position state of the displacement measuring element, preventing equipment damage caused by the measuring instrument remaining in the measuring position during turbine startup. In other words, during turbine startup, the displacement measuring element can be adjusted to a non-measuring position.

[0038] As a specific example of a measurement component, when the mounting cavity sidewall is provided with at least two sets of mounting slots, the pressure measuring element sends the detected measurement position or non-measurement position of the displacement measuring element 22 to the controller 18.

[0039] In this configuration, when the dial indicator is in the measuring position, the first pressure sensor 21 outputs 1, and the second pressure sensor 20 outputs 0. When the dial indicator is not in the measuring position, i.e., in the non-operating position, the first pressure sensor 21 outputs 0, and the second pressure sensor 20 outputs 1. The first pressure sensor 21 and the second pressure sensor 20 transmit the detected pressure values ​​to the PLC for overall system control. The position of the displacement measuring element 22 and the main shaft height data measured by the measuring components are transmitted to the PLC via a data cable to participate in the main shaft height adjustment control operation.

[0040] As a specific example of a measuring component, multiple measuring components are provided, and each of the multiple measuring components is respectively provided on a corresponding turbine bearing end cover 26.

[0041] Specifically, the measuring components can be installed on the bearing end cover according to actual conditions. Multiple measuring components can be set to more accurately measure the height of the turbine shaft and improve the accuracy of adjusting the shaft height.

[0042] As a specific example of a regulating component, such as Figure 3As shown, the regulating assembly includes: a jacking oil regulating valve, an oil supply pipeline (not shown in the figure), and a pipeline pressure measuring instrument 171; the jacking oil regulating valve is located on the oil supply pipeline; both ends of the oil supply pipeline are connected to the main oil supply pipeline of the jacking oil system 17 and the turbine bearing, respectively; the pipeline pressure measuring instrument 171 is located on the main oil supply pipeline, and the pipeline pressure measuring instrument 171 and the jacking oil regulating valve are electrically connected to the controller 18, respectively.

[0043] Specifically, the pipeline pressure measuring instrument 171 can be a pressure transmitter, and each turbine bearing is equipped with two jacking oil supply pipelines, each with a jacking oil regulating valve. These regulating valves receive control and regulation signals from the PLC to open or close, and adjust the opening degree to supply jacking oil to the turbine bearings to lift the turbine shaft.

[0044] like Figure 3 As shown, the adjustment system of this disclosure includes multiple measuring components and adjustment components. Taking four measuring components as an example, the adjustment system includes four measuring components: a first measuring component 1, a second measuring component 2, a third measuring component 3, and a fourth measuring component 4. The four measuring components are respectively disposed on the corresponding bearing end caps. The adjustment components supply oil to the first bearing 5, the second bearing 6, the third bearing 7, and the fourth bearing 8. The first bearing is supplied with oil by two oil supply lines, each equipped with a first jacking oil regulating valve 9 and a second jacking oil regulating valve 10. Similarly, the second bearing is supplied with oil by two oil supply lines, each equipped with a third jacking oil regulating valve 11 and a fourth jacking oil regulating valve 12. The third bearing is supplied with oil by two oil supply lines, each equipped with a fifth jacking oil regulating valve 13 and a sixth jacking oil regulating valve 14. The fourth bearing is supplied with oil by two oil supply lines, each equipped with a seventh jacking oil regulating valve 15 and an eighth jacking oil regulating valve 16. The first jacking oil regulating valve to the eighth jacking oil regulating valve are respectively connected to the controller 18.

[0045] As a specific example of the adjustment system, when the measuring component is in the measuring position and the pipeline pressure detected by the pipeline pressure measuring instrument 171 meets the system operation requirements, after the controller 18 receives the adjustment signal and the adjustment target, the controller 18 controls the jacking oil regulating valve according to the measured value of the measuring component to control the amount of jacking oil entering the turbine bearing and adjust the turbine main shaft 27 to the target height.

[0046] like Figure 2 and 3As shown, when the adjustment system is powered on, the first pressure sensor 21 and the second pressure sensor 20 in the measuring component transmit the monitoring results to the controller 18. When the controller 18 detects that all dial indicators 22 are in the measuring position, the adjustment system displays that the measuring conditions are met. Specifically, the controller is connected to a control panel, which includes a display interface and control buttons. The display interface shows that the dial indicators are in the measuring position, and the control buttons can be touch buttons. The controller records and stores the main shaft height when the turbine top shaft oil pressure is 0 as the reference for adjusting the measuring component, and defines this reference as the 0 position of each bearing.

[0047] When the pressure of the jacking oil system 17 meets the system operating requirements, the pressure transmitter 171 will output the corresponding jacking oil system 17 pressure signal to the controller 18 as a start-up permission signal. At this time, the adjustment system screen displays adjustment preparation. When the operator clicks the start adjustment button, the PLC begins to record the measurement data of each measuring component. The operator can input the target value of the main shaft height adjustment through the control panel. The proportional, integral, and differential (PID) control logic inside the PLC will automatically control the amount of jacking oil entering the turbine bearing according to the measured height at each bearing, thereby adjusting the main shaft height to the target value.

[0048] Once the main shaft height is adjusted, if the turbine is about to start, the adjustment system will determine the position based on the dial indicator 22. When all dial indicators 22 are out of the measuring position, the controller sends a signal to allow start-up; conversely, if any dial indicator is in the measuring position, the controller sends an alarm to prohibit turbine start-up, preventing accidents caused by the measuring components not being disengaged during high-speed turbine operation.

[0049] The controller of the regulating system in this embodiment of the present disclosure is equipped with internal protection logic. When the main shaft is not lifted and rotated, the controller will prevent the turbine from starting to prevent equipment damage.

[0050] The aforementioned adjustment system utilizes semi-permanent fixed measuring components installed on the turbine body, controlled by an external independent programmable controller, and operated via a human-machine interface. It is simple to implement, and its modular design facilitates maintenance and reduces costs. Due to the widespread use of turbines in power plants, turbine shaft height adjustment must be performed on all turbine equipment. This adjustment system can be applied to all turbine systems, offering broad applicability and wide applicability. Its use significantly reduces the workload of turbine control personnel and provides better precision than manual operation.

[0051] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the embodiments of this disclosure, and the embodiments of this disclosure are not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the embodiments of this disclosure, and these modifications and improvements are also considered to be within the protection scope of the embodiments of this disclosure.

Claims

1. An automatic adjustment system for the jacking height of a steam turbine main shaft, characterized in that, The system includes: A measuring component, which is installed on the turbine bearing end cover, is used to detect the movement height of the turbine shaft; An adjustment assembly is used to connect the jacking oil system and the turbine bearing respectively to supply oil to the turbine bearing; A controller, which is electrically connected to the measuring component and the adjusting component respectively, adjusts the oil supply according to the movement height of the turbine shaft detected by the measuring component; The measuring assembly includes a mounting cylinder and a displacement measuring element. The mounting cylinder has a mounting cavity with openings at both ends. A fixing part is provided at the first end of the mounting cylinder for connection with the bearing end cover. The first end of the displacement measuring element is movably mounted in the mounting cavity. At least two sets of mounting grooves are provided on the sidewall of the mounting cavity, with two mounting grooves symmetrically arranged in each set along the radial direction of the mounting cavity. The two sets of mounting grooves are located at the measuring position and the non-measuring position, respectively. A limiting groove is provided on the displacement measuring element, which selectively abuts against an elastic limiting element provided in one of the two sets of mounting grooves. The regulating assembly includes: a jacking oil regulating valve, an oil supply pipeline, and a pipeline pressure measuring instrument; the jacking oil regulating valve is located on the oil supply pipeline; both ends of the oil supply pipeline are respectively connected to the main oil supply pipeline of the jacking oil system and the turbine bearing; the pipeline pressure measuring instrument is located on the main oil supply pipeline, and the pipeline pressure measuring instrument and the jacking oil regulating valve are electrically connected to the controller; When the measuring component is in the measuring position and the pipeline pressure detected by the pipeline pressure measuring instrument meets the system operation requirements, after receiving the adjustment signal and the adjustment target, the controller controls the jacking oil regulating valve according to the measurement value of the measuring component to control the amount of jacking oil entering the turbine bearing and adjust the turbine shaft to the target height.

2. The system according to claim 1, characterized in that, The measuring assembly also includes a measuring sensor, and the first end of the displacement measuring element is disposed on the bearing end cover, and the end of the first end of the displacement measuring element abuts against the turbine shaft; The measuring sensor is connected to both the displacement measuring element and the controller to transmit the measurement results from the displacement measuring element to the controller.

3. The system according to claim 2, characterized in that, The displacement measuring component is a dial indicator, and the fixing rod of the dial indicator is movably disposed in the mounting cavity. The fixing rod of the dial indicator is provided with a limit groove in the circumferential direction. The side wall of the mounting cavity is provided with a limiting part corresponding to the limiting groove.

4. The system according to claim 3, characterized in that, The limiting part is a mounting groove; The measuring component further includes: an elastic limiting member and a pressure measuring member, wherein a first end of the elastic limiting member is connected to the pressure measuring member, and a second end of the elastic limiting member abuts against the limiting groove; The pressure measuring element is disposed in the mounting groove and is connected to the controller to send the detected pressure information to the controller.

5. The system according to claim 4, characterized in that, When the sidewall of the mounting cavity is provided with at least two sets of mounting slots, the pressure measuring element will send the detected measurement position or non-measurement position of the displacement measuring element to the controller.

6. The system according to any one of claims 1 to 5, characterized in that, The measuring components are provided in multiple ways, and each of the multiple measuring components is respectively installed on the corresponding turbine bearing end cover.

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