Online monitoring system for dynamic and static gaps of gas compressor of gas turbine

Abstract

The utility model discloses a gas turbine compressor dynamic and static clearance on-line monitoring system, which belongs to the technical field of mechanical equipment monitoring and comprises a compressor (1), a combustion chamber (2) and a compressor moving blade (4). A rotor and a stator component are arranged inside the compressor (1), the combustion chamber (2) is positioned between the compressor (1) and a turbine (3), and the compressor moving blade (4) is fixedly connected with the rotor. A cylinder (7) is arranged at the top of the compressor moving blade (4), a monitoring hole is formed in the cylinder (7), a gap monitoring sensor (5) is installed on the monitoring hole, and the surface of the head of the gap monitoring sensor (5) is flush with the inner surface of the cylinder (7). According to the utility model, the defects of insufficient sensor deployment, difficulty in reflecting the difference between the assembly clearance and the actual operation clearance and difficulty in evaluating the accuracy of data monitored by a mathematical model in the prior art are overcome.

Description

Technical Field

[0001] This utility model relates to an online monitoring system for the dynamic and static clearance of a gas turbine compressor, belonging to the field of mechanical equipment monitoring technology. Background Technology

[0002] In the field of compressor dynamic and static clearance monitoring technology, existing technologies can be mainly divided into three aspects. First, significant progress has been made in the research of monitoring sensors, including capacitive, eddy current, and optical clearance monitoring sensors. These sensors can achieve accurate measurement of compressor dynamic and static clearances, providing strong assurance for the safe operation of compressors. Second, the monitoring of dynamic and static clearances has also received much attention during compressor assembly. Traditional monitoring methods include direct measurement using specialized measuring tools such as feeler gauges and wire gauges, or indirect calculation by measuring other relevant parameters, such as temperature and pressure, and combining them with corresponding mathematical models to determine the size of the dynamic and static clearances. These methods have played an important guiding role in the compressor assembly process. Finally, with the continuous development of technology, online monitoring technology for compressor dynamic and static clearances has gradually matured. This technology is mainly based on existing measurable parameters of the gas turbine, such as vibration, temperature, and pressure, and calculates the deformation of related components such as cylinders, blades, and impellers through nonlinear adaptive models, finite element simulation models, or other proxy models, thereby calculating the dynamic and static clearance values ​​of the compressor in real time. This online monitoring technology not only improves the real-time nature of monitoring, but also provides strong support for the long-term stable operation of the compressor.

[0003] While existing technologies for monitoring dynamic and static clearances in compressors have achieved some success, several shortcomings remain. First, manufacturers of dynamic and static clearance sensors for rotating machinery primarily focus on sensor research itself, with relatively little research on their practical deployment and application within compressors. This can lead to issues in sensor installation location, measurement accuracy, and data transmission during practical applications, affecting the accuracy and reliability of monitoring results. Second, while measurements of dynamic and static clearances during compressor assembly reflect the clearance size at the time of assembly, they cannot fully reflect changes in dynamic and static clearances during actual operation. This is because compressors are affected by various factors during operation, such as temperature, pressure, and vibration, all of which can cause changes in dynamic and static clearances. Therefore, relying solely on measurement data from the assembly process is insufficient to comprehensively assess the compressor's operating status. Finally, while real-time monitoring of dynamic and static clearances using mathematical models is convenient and safe, the accuracy of the monitoring data is difficult to quantitatively assess. This is because establishing mathematical models requires certain assumptions and simplifications, which may differ from actual conditions, leading to errors in the monitoring results. Therefore, improving the accuracy and reliability of monitoring data is an important issue that current compressor static clearance monitoring technology needs to address. Utility Model Content

[0004] The purpose of this invention is to provide an online monitoring system for the dynamic and static clearance of a gas turbine compressor. By aligning the head surface of the clearance monitoring sensor with the inner surface of the cylinder, this system addresses the shortcomings of existing technologies, such as insufficient sensor deployment, difficulty in reflecting the difference between assembly clearance and actual operating clearance, and difficulty in assessing the accuracy of monitoring data from mathematical models.

[0005] To solve the above-mentioned technical problems, this utility model is implemented using the following technical solution:

[0006] This utility model provides an online monitoring system for the dynamic and static clearances of a gas turbine compressor, comprising:

[0007] The compressor 1 has a rotor and stator assembly inside, a combustion chamber 2 located between the compressor 1 and the turbine 3, and a compressor moving blade 4 fixedly connected to the rotor. A cylinder 7 is provided on the top of the compressor moving blade 4. A monitoring hole is provided on the cylinder 7. A gap monitoring sensor 5 is installed on the monitoring hole. The head surface of the gap monitoring sensor 5 is flush with the inner surface of the cylinder 7.

[0008] Furthermore, at the installation position of the gap monitoring sensor 5, when viewed from the compressor 1 towards the turbine 3 end, the gap monitoring sensor 5 is installed in the lower left area around the cylinder 7 when the rotor rotates clockwise.

[0009] Furthermore, at the installation position of the gap monitoring sensor 7, when viewed from the compressor 1 towards the turbine 3 end, the gap monitoring sensor 5 is installed in the lower right area of ​​the cylinder 7 circumferentially when the rotor rotates counterclockwise.

[0010] Furthermore, the compressor 1 is used to draw in air; the compressor blades 4 are used to compress the drawn-in air as the rotor rotates; the combustion chamber 2 is used to mix and burn the compressed air with the fuel in the combustion chamber to produce high-temperature and high-pressure gas; the turbine 3 is used to convert the thermal energy of the high-temperature and high-pressure gas into mechanical energy to drive the generator; the cylinder 7 is used to house and protect the compressor blades; the monitoring hole is used to install a gap monitoring sensor 5; the gap monitoring sensor 5 is used to measure the gap data between the compressor blades 4 and the stator assembly; the communication cable 11 is used to connect the gap monitoring sensor 5, the data drive conditioning module 8, the data acquisition and processing module 9, and the monitoring device 10 for data transmission and processing.

[0011] Furthermore, the gap monitoring sensor 5, the data-driven conditioning module 8, the data acquisition and processing module 9, and the monitoring device 10 are interconnected via communication cable 11 for data transmission and processing.

[0012] Furthermore, the data-driven conditioning module 8 is used to preprocess the gap data;

[0013] The data acquisition and processing module 9 is used to monitor the changing trend of the gap data and issue an early warning signal when the amount of change in the gap data exceeds a preset threshold.

[0014] The monitoring device 10 is used to receive early warning signals and perform corresponding early warning operations;

[0015] The communication cable 11 is used to connect the gap monitoring sensor 5, the data-driven conditioning module 8, the data acquisition and processing module 9, and the monitoring device 10 for data transmission and processing.

[0016] Furthermore, the outer wall of the monitoring hole is provided with a sensor mounting bracket 6 that is fixedly connected to the outer wall of the cylinder 7, and the gap monitoring sensor 5 is mounted on the monitoring hole through the sensor mounting bracket 6.

[0017] Furthermore, the outer wall of the monitoring hole is fixed to the outer wall of the cylinder 7 and the sensor mounting bracket 6 by welding.

[0018] Furthermore, the gap monitoring sensor 5 and the sensor mounting bracket 6 are detachably connected by threads.

[0019] Furthermore, both the outer surface of the gap monitoring sensor 5 and the inner surface of the sensor mounting bracket 6 are provided with matching threads.

[0020] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0021] This invention achieves online real-time monitoring of the moving and stationary clearances of a gas turbine compressor by aligning the head surface of a clearance monitoring sensor with the inner surface of the cylinder. A monitoring hole is provided on the cylinder, and the clearance monitoring sensor is installed in the monitoring hole. This ensures that the clearance monitoring sensor can accurately measure the minute clearances between the moving blades and the stator assembly. Furthermore, the flush alignment of the sensor head surface with the inner surface of the cylinder avoids airflow interference, improves measurement accuracy, and innovatively and effectively enhances the safety and stability of compressor operation. It can promptly detect and warn of potential rubbing risks, reduce equipment failures and downtime caused by improper clearances, thereby extending the service life of the gas turbine, reducing maintenance costs, and improving overall operating efficiency. This invention overcomes the shortcomings of existing technologies, such as insufficient sensor deployment, difficulty in reflecting the difference between assembly clearances and actual operating clearances, and difficulty in assessing the accuracy of monitoring data from mathematical models.

[0022] This invention innovatively installs the gap monitoring sensor at a suitable position around the cylinder circumference according to the different rotation directions of the rotor. Specifically, it is installed at the lower left of the cylinder circumference when the rotor rotates clockwise and at the lower right of the cylinder circumference when the rotor rotates counterclockwise. This ensures that the gap monitoring sensor can accurately capture the gap changes between the moving blade and the stator assembly.

[0023] This invention, through a data-driven conditioning module and a data acquisition and processing module, can monitor the changing trend of gap data in real time and quickly issue an early warning signal when the change in gap data exceeds a preset threshold. This high-precision real-time monitoring and early warning capability effectively improves the operational safety of the gas turbine, avoiding equipment failures and shutdowns caused by improper gaps, thus ensuring the continuous and stable operation of the gas turbine and effectively reducing the cost and risk of manual intervention. Simultaneously, the monitoring equipment can receive early warning signals and perform corresponding early warning operations, providing maintenance personnel with timely and accurate fault information, facilitating their rapid resolution of problems. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an online monitoring system for the dynamic and static clearance of a gas turbine compressor, provided in an embodiment of this utility model.

[0025] Figure 2 This is a cross-sectional view of the gas turbine compressor provided in an embodiment of this utility model.

[0026] Reference numerals: 1-Compressor; 2-Combustion chamber; 3-Turbine; 4-Compressor moving blades; 5-Gap monitoring sensor; 6-Sensor mounting bracket; 7-Cylinder; 8-Data-driven conditioning module; 9-Data acquisition and processing module; 10-Monitoring equipment; 11-Communication cable. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features therein are detailed descriptions of the present invention, rather than limitations thereof. In the absence of conflict, the embodiments of the present invention and the technical features therein can be combined with each other.

[0028] The term "and / or" simply describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0029] Example 1

[0030] like Figure 1 , Figure 2 As shown in the figure, this embodiment introduces an online monitoring system for the dynamic and static clearances of a gas turbine compressor, including:

[0031] The compressor 1 has a rotor and stator assembly inside, a combustion chamber 2 located between the compressor 1 and the turbine 3, and a compressor moving blade 4 fixedly connected to the rotor. A cylinder 7 is provided on the top of the compressor moving blade 4. A monitoring hole is opened on the cylinder 7, and a gap monitoring sensor 5 is installed on the monitoring hole. The head surface of the gap monitoring sensor 5 is flush with the inner surface of the cylinder 7.

[0032] In some embodiments, the gap monitoring sensor 5, the data-driven conditioning module 8, the data acquisition and processing module 9, and the monitoring device 10 are interconnected via a communication cable 11 for data transmission and processing.

[0033] In this embodiment, when viewed from the compressor 1 towards the turbine 3, at the installation position of the gap monitoring sensor 5, when the rotor rotates clockwise, the gap monitoring sensor 5 is installed in the lower left area around the cylinder 7. When viewed from the compressor 1 towards the turbine 3, at the installation position of the gap monitoring sensor 5, when the rotor rotates counterclockwise, the gap monitoring sensor 5 is installed in the lower right area around the cylinder 7.

[0034] In some embodiments, the outer wall of the monitoring hole is provided with a sensor mounting bracket 6 that is fixedly connected to the outer wall of the cylinder 7, and the gap monitoring sensor 5 is mounted on the monitoring hole through the sensor mounting bracket 6.

[0035] In some embodiments, the outer wall of the monitoring hole is fixed to the outer wall of the cylinder 7 and the sensor mounting bracket 6 by welding.

[0036] In some embodiments, the gap monitoring sensor 5 and the sensor mounting bracket 6 are detachably connected by threads, and both the outer surface of the gap monitoring sensor 5 and the inner surface of the sensor mounting bracket 6 are provided with matching threads.

[0037] In this embodiment, the compressor 1 is used to draw in air, the compressor blades 4 are used to compress the drawn-in air as the rotor rotates, the combustion chamber 2 is used to mix and burn the compressed air with the fuel in the combustion chamber to generate high-temperature and high-pressure gas; the turbine 3 is used to convert the thermal energy of the high-temperature and high-pressure gas into mechanical energy to drive the generator, the cylinder 7 is used to house and protect the compressor blades, and the monitoring hole is used to install a gap monitoring sensor 5; the gap monitoring sensor 5 is used to measure the gap data between the compressor blades 4 and the stator assembly.

[0038] In some embodiments, the data-driven conditioning module 8 is used to preprocess the gap data; the data acquisition and processing module 9 is used to monitor the changing trend of the gap data and issue an early warning signal when the detected change in the gap data exceeds a preset threshold; the monitoring device 10 is used to receive the early warning signal and perform corresponding early warning operations; the communication cable 11 is used to connect the gap monitoring sensor 5, the data-driven conditioning module 8, the data acquisition and processing module 9 and the monitoring device 10 for data transmission and processing.

[0039] In this embodiment, a cylinder 7 is installed on the top of the compressor moving blade 4, and a monitoring hole is opened on the cylinder, so that the gap monitoring sensor 5 can get closer to the actual gap position between the moving blade and the stator assembly, thereby improving the accuracy of the measurement.

[0040] In this embodiment, cylinder 7 serves as a mounting platform, providing stable support for the clearance monitoring sensor while protecting the sensor from direct impacts from high-speed rotating components.

[0041] In this embodiment, the gap monitoring sensor 5 is mounted on the monitoring hole. The design of its head surface being flush with the inner surface of the cylinder 7 reduces airflow disturbance that might be caused by the protruding gap monitoring sensor, ensuring measurement accuracy. Simultaneously, the flush mounting ensures that the sensor can accurately capture minute gap changes between the moving blade and stator assembly, while avoiding adverse effects on the internal flow field of the compressor.

[0042] This embodiment also utilizes a data-driven conditioning module 8 and a data acquisition and processing module 9 to achieve real-time processing and analysis of monitoring data. The data-driven conditioning module is responsible for preprocessing tasks such as signal amplification and filtering to improve data quality; the data acquisition and processing module is responsible for data acquisition, storage, and analysis, providing accurate and timely gap information to the monitoring equipment.

[0043] In this embodiment, the gap monitoring sensor, data-driven conditioning module, data acquisition and processing module, and monitoring device are interconnected via communication cable 11, realizing online real-time monitoring of the compressor's dynamic and static gaps. The gap data can be quickly transmitted to the monitoring device, enabling timely detection of gap changes and preventing performance degradation or malfunctions caused by excessively large or small gaps. The speed of data transmission ensures the timeliness and accuracy of monitoring.

[0044] In summary, this embodiment, by monitoring the compressor's dynamic and static clearances in real time, can promptly detect potential clearance anomalies, prevent mechanical failures caused by improper clearances, and thus improve the operational reliability of the gas turbine. Accurate clearance monitoring helps adjust compressor operating parameters to maintain optimal clearance conditions, thereby improving compressor efficiency and performance. Real-time monitoring can provide early warnings of potential faults, making maintenance work more targeted and reducing unnecessary downtime and maintenance costs. By monitoring clearance changes, the system can prevent serious accidents caused by improper clearances, ensuring the safe operation of the gas turbine.

[0045] The monitoring process of the gas turbine compressor static clearance online monitoring system provided in this embodiment includes:

[0046] Step 1: Operation of the gas turbine compressor:

[0047] In this embodiment, the compressor 1 of the gas turbine starts working and draws in outside air. As the compressor blades 4 rotate at high speed with the rotor, the air is gradually compressed, and the density and pressure increase. The compressed air is delivered to the combustion chamber 2 and mixed with natural gas or fuel oil. The fuel is natural gas or fuel oil. When the fuel-air mixture reaches the ignition point, it produces high-temperature and high-pressure gas.

[0048] Step 2: Monitoring of dynamic and static clearances:

[0049] To monitor the gap between the compressor blade 4 and the stator assembly in real time, a gap monitoring sensor 5 is installed in this embodiment. The sensor 5 is mounted in a monitoring hole on the cylinder 7 to measure the gap data between the compressor blade 4 and the stator assembly. The gap monitoring sensor 5 can accurately measure and capture minute changes in the gap between the blade and the stator. The gap data collected by the gap monitoring sensor 5 is transmitted in real time to the data-driven conditioning module 8 via the communication cable 11, ensuring the accuracy and real-time nature of the data and providing a foundation for subsequent data processing and analysis.

[0050] Step 3: Data Processing and Early Warning

[0051] In this embodiment, the data-driven conditioning module 8 uses the MATLAB signal processing toolbox to preprocess the received gap data, including filtering, noise reduction, and calibration operations, to improve the accuracy and reliability of the data. The preprocessed gap data is then transmitted to the data acquisition and processing module 9 again through the communication cable 11.

[0052] In this embodiment, the data acquisition and processing module 9 uses LabVIEW to monitor the changing trend of the gap data, including long-term trends and short-term fluctuations, and sets a threshold to trigger an alarm to determine whether the gap data is abnormal. Once the monitored change in the gap data exceeds the preset threshold, it indicates that there may be blade wear, foreign object intrusion, or other abnormalities. At this time, the data acquisition and processing module 9 will immediately send an early warning signal to the monitoring device 10 through the communication cable 11.

[0053] In this embodiment, after receiving the early warning signal, the monitoring device 10 uses the SCADA system to trigger the corresponding alarm mechanism, such as audible and visual alarm, SMS notification, etc., so that the operator can promptly detect and handle potential faults.

[0054] This embodiment enables real-time monitoring and early warning of the dynamic and static clearances of the gas turbine compressor, which not only improves the operational safety and reliability of the gas turbine but also reduces economic losses caused by downtime due to malfunctions. Furthermore, this embodiment provides strong data support for the maintenance and management of gas turbines, contributing to more scientific and efficient operation and maintenance strategies.

[0055] In summary, this invention achieves online real-time monitoring of the moving and stationary clearances of a gas turbine compressor through a clearance monitoring sensor, a data-driven conditioning module, a data acquisition and processing module, and monitoring equipment. A monitoring hole is provided on the cylinder, and the clearance monitoring sensor is installed in the monitoring hole. This ensures that the clearance monitoring sensor can accurately measure the minute clearances between the moving blades and the stator assembly. Furthermore, the head surface of the clearance monitoring sensor is flush with the inner surface of the cylinder, avoiding airflow interference and improving measurement accuracy. This innovative and effective improvement enhances the safety and stability of compressor operation, enabling timely detection and early warning of potential rubbing risks, reducing equipment failures and downtime caused by improper clearances, thereby extending the service life of the gas turbine, reducing maintenance costs, and improving overall operating efficiency. It also solves the shortcomings of existing technologies, such as insufficient sensor deployment, difficulty in reflecting the difference between assembly clearances and actual operating clearances, and difficulty in assessing the accuracy of monitoring data from mathematical models.

[0056] This invention innovatively installs the gap monitoring sensor at a suitable position around the cylinder circumference according to the different rotation directions of the rotor. Specifically, it is installed at the lower left of the cylinder circumference when the rotor rotates clockwise and at the lower right of the cylinder circumference when the rotor rotates counterclockwise. This ensures that the gap monitoring sensor can accurately capture the gap changes between the moving blade and the stator assembly.

[0057] This invention, through a data-driven conditioning module and a data acquisition and processing module, can monitor the changing trend of gap data in real time and quickly issue an early warning signal when the change in gap data exceeds a preset threshold. This high-precision real-time monitoring and early warning capability effectively improves the operational safety of the gas turbine, avoiding equipment failures and shutdowns caused by improper gaps, thus ensuring the continuous and stable operation of the gas turbine and effectively reducing the cost and risk of manual intervention. Simultaneously, the monitoring equipment can receive early warning signals and perform corresponding early warning operations, providing maintenance personnel with timely and accurate fault information, facilitating their rapid resolution of problems.

[0058] Those skilled in the art will understand that embodiments of this invention can be provided as methods, systems, or computer program products. Therefore, this invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0059] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0060] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0061] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0062] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present utility model.

Claims

1. A gas turbine compressor moving static clearance on-line monitoring system, characterized by, The utility model relates to a kind of gas turbine compressor moving and static gap online monitoring systems, including: Compressor (1) with rotor and stator assembly inside, Combustion chamber (2) between compressor (1) and turbine (3) And the compressor moving blade (4) fixedly connected with the rotor, The compressor moving blade (4) top is provided with cylinder (7), Monitoring hole is opened in the cylinder (7), Gap monitoring sensor (5) is installed on the monitoring hole, The head surface of gap monitoring sensor (5) is flush with the inner surface of cylinder (7).

2. The gas turbine compressor moving static clearance on-line monitoring system according to claim 1, characterized in that, In the installation position of gap monitoring sensor (5), from compressor (1) to turbine (3) end, when the rotor rotates clockwise, gap monitoring sensor (5) is installed in the left lower region of the circumference of cylinder (7).

3. The gas turbine compressor moving static clearance on-line monitoring system according to claim 1, characterized in that, In the installation position of gap monitoring sensor (5), from compressor (1) to turbine (3) end, when the rotor rotates counterclockwise, gap monitoring sensor (5) is installed in the right lower region of the circumference of cylinder (7).

4. The gas turbine compressor moving and static gap online monitoring system of claim 1, wherein, The compressor (1) is configured to intake air; The compressor moving blade (4) is configured to rotate with the rotor and compress the intake air; The combustion chamber (2) is configured to mix and combust the compressed air with fuel in the combustion chamber to generate high-temperature and high-pressure gas; and the turbine (3) is configured to convert the heat energy of the high-temperature and high-pressure gas into mechanical energy to drive a generator; The cylinder (7) is configured to accommodate and protect the compressor moving blade; The monitoring hole is configured to install the gap monitoring sensor (5); The gap monitoring sensor (5) is configured to measure the gap data between the compressor moving blade (4) and the stator assembly.

5. The gas turbine compressor moving static clearance on-line monitoring system according to claim 1, characterized by The gap monitoring sensor (5), the data-driven conditioning module (8), the data acquisition and processing module (9), and the monitoring device (10) are connected to each other through a communication cable (11) for data transmission and processing.

6. The gas turbine compressor moving and static gap online monitoring system of claim 5, wherein, The data-driven conditioning module (8) is configured to pre-process the gap data; The data acquisition and processing module (9) is configured to monitor the trend of the gap data and send a warning signal when the change in the gap data exceeds a preset threshold; The monitoring device (10) is configured to receive the warning signal and perform corresponding warning operations; The communication cable (11) is configured to connect the gap monitoring sensor (5), the data-driven conditioning module (8), the data acquisition and processing module (9), and the monitoring device (10) for data transmission and processing.

7. The gas turbine compressor moving static clearance on-line monitoring system according to claim 1, characterized by The outer wall of the monitoring hole is provided with a sensor mounting support (6) fixedly connected with the outer wall of the cylinder (7), and the gap monitoring sensor (5) is installed on the monitoring hole through the sensor mounting support (6).

8. The gas turbine compressor clearance online monitoring system of claim 7, wherein, The outer wall of the monitoring hole is provided with a sensor mounting support (6) fixedly connected with the outer wall of the cylinder (7).

9. The gas turbine compressor clearance online monitoring system of claim 7, wherein, The gap monitoring sensor (5) and the sensor mounting support (6) are detachably connected through threads.

10. The gas turbine compressor clearance online monitoring system of claim 9, wherein, The outer surface of the gap monitoring sensor (5) and the inner surface of the sensor mounting support (6) are provided with matching threads.

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