Online monitoring system for gas inlet filter element of gas turbine

Abstract

The invention belongs to the technical field of monitoring systems, and particularly relates to a gas turbine air inlet filter element online monitoring system which comprises a monitoring shell, an air inlet monitoring mechanism is installed at the upper end of the monitoring shell, an air outlet monitoring mechanism is installed on the inner side of the monitoring shell, and a sealing mechanism is arranged at the joint of the air outlet monitoring mechanism and the monitoring shell; the problems needing to be solved in the scheme are insufficient in monitoring precision, poor in sealing performance and inconvenient to maintain. According to the scheme, the air inlet filter element body is divided into a plurality of independent monitoring areas through the monitoring partition plates, each area corresponds to an independent air outlet monitoring mechanism, local tiny damage or leakage of the filter element can be detected in real time, and the sensitivity is improved compared with traditional overall monitoring. When the filter element in a certain area is damaged, only the corresponding monitoring through hole needs to be blocked, the whole filter element does not need to be replaced, the maintenance cost is reduced, continuous operation of the gas turbine is guaranteed, and the downtime is shortened.

Description

Technical Field

[0001] The present invention belongs to the technical field of monitoring systems, and particularly relates to an on-line monitoring system for a gas turbine intake filter element. Background Art

[0002] The main functions of on-line monitoring of the gas turbine intake filter element include ensuring the stable and efficient operation of the compressor, protecting the compressor from damage by dust and particles, thereby extending its service life and improving the overall operation efficiency. Specifically, the intake filter element is a key component to ensure the intake air quality of the gas turbine and the cleanliness of the compressor, and its performance monitoring is crucial. A performance monitoring device for an intake filtration system using multi-sensor technology, machine learning algorithms and electromigration measurement technology. This device is installed at both ends of the filter, and can accurately realize the quantitative evaluation of the filter performance, providing reliable data for the performance evaluation of the filter.

[0003] The existing on-line monitoring systems for gas turbine intake filter elements have the following problems: 1. Insufficient monitoring accuracy: The traditional system only monitors the performance of the filter element as a whole from the inlet and outlet, and cannot detect local minor damage or leakage of the filter element, resulting in the neglect of minor changes and affecting the operation safety of the gas turbine; 2. Poor sealing performance: The connection between the monitoring mechanism and the filter element housing is not tightly sealed, which is likely to cause air leakage and affect the accuracy of the monitoring data; 3. Inconvenient maintenance: When a local part of the filter element is damaged, the whole needs to be replaced, increasing the maintenance cost and lacking the flexibility of segmented monitoring and selective plugging; Therefore, it is necessary to design an on-line monitoring system for a gas turbine intake filter element to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an on-line monitoring system for a gas turbine intake filter element to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An on-line monitoring system for a gas turbine intake filter element, comprising: A monitoring housing, an intake monitoring mechanism is installed at the upper end of the monitoring housing, an outlet monitoring mechanism is installed inside, and a sealing mechanism is arranged at the connection between the outlet monitoring mechanism and the monitoring housing; The monitoring housing includes a filter element installation housing, a filter element installation cover plate is fixedly installed at the upper end of the filter element installation housing through bolts, an intake filter element main body is installed inside, and a monitoring partition plate is arranged outside the intake filter element main body; The outer side of the monitoring partition plate is fixedly connected to the inner wall of the filter element installation housing, a communication port is opened at one end thereof, and a monitoring partition is arranged on its surface. A monitoring through hole is opened in the middle of the monitoring partition, and one end of the outlet monitoring mechanism is installed on the monitoring through hole; The air outlet monitoring mechanism includes a monitoring main seat, one end of the monitoring main seat is fixedly installed on the surface of the filter element installation housing, the other end is installed with a sealing mechanism, a monitoring main frame is installed inside the monitoring main seat, an air outlet monitor is installed inside the monitoring main frame, a mounting column is rotatably installed in the middle of the air outlet monitor through a bearing, and one end of the mounting column is screwed onto the monitoring main seat through a threaded hole.

[0006] Preferably, a filter element air inlet is provided in the middle of the filter element installation cover plate, which is connected to the air inlet monitoring mechanism; A filter element air outlet is provided at the lower end of the filter element installation housing, and its position corresponds to the communication port of the monitoring partition plate.

[0007] Preferably, the monitoring partition plate includes a plate body, an installation hole is opened inside the plate body, a rubber pad is arranged on the inner wall of the installation hole, and the intake filter element body is embedded in the installation hole and is hermetically attached to the rubber pad; The communication port is located at one end of the plate body and is communicated with the filter element air outlet.

[0008] Preferably, a connecting insert bar is provided on one side of the monitoring partition plate, and a groove corresponding to the position of the connecting insert bar is provided on the surface of the plate body, and the monitoring partition plate is fixed by the engagement of the insert bar and the groove.

[0009] Preferably, a positioning column is fixedly installed on one side of the monitoring main frame through a bolt, a positioning cylinder is provided inside the monitoring main seat, and one end of the positioning column is slidably installed in the positioning cylinder for positioning the monitoring main frame.

[0010] Preferably, the sealing mechanism includes a pushing chute opened inside the monitoring main seat, a pushing plate slidably installed in the pushing chute, and a main sealing ring fixed to the outer surface of the pushing plate; A pushing seat is installed inside the pushing plate, the outer side of the monitoring main frame tightly presses the pushing seat through an inclined surface, one end of the pushing seat is connected with a sealing spring, and the other end of the sealing spring is fixed to the inner wall of the monitoring main seat.

[0011] Preferably, the main sealing ring is of an annular structure, and a sealing air bag cavity is arranged inside it, and the sealing air bag cavities are communicated with each other through an internal channel.

[0012] Preferably, the air inlet monitoring mechanism includes an air inlet seat screwed onto the filter element air inlet through a thread, and an air inlet cross-shaped frame fixed inside the air inlet seat, and an air inlet monitor is installed inside the air inlet cross-shaped frame.

[0013] Preferably, an auxiliary support frame is fixed inside the filter element installation cover plate, a support column is provided in the middle of the auxiliary support frame, and a positioning plug is integrally formed at one end of the support column; A positioning jack is provided in the middle of the intake cross-shaped frame, and the positioning plug is inserted into the positioning jack for supporting and positioning the intake air monitoring mechanism.

[0014] Preferably, the monitoring partition plate divides the filter element installation housing into multiple independent monitoring areas, and each area corresponds to an outlet air monitoring mechanism to achieve segmented independent monitoring of the intake air filter element body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. High-precision local monitoring and flexible maintenance: By dividing the intake air filter element body into multiple independent monitoring areas through the monitoring partition plate, and each area corresponds to an independent outlet air monitoring mechanism, it can detect local micro-damage or leakage of the filter element in real time, and the sensitivity is improved compared with traditional overall monitoring. When the filter element in a certain area is damaged, only the corresponding monitoring through-hole needs to be blocked, and there is no need to replace the filter element as a whole, reducing the maintenance cost, ensuring the continuous operation of the gas turbine, and reducing the downtime.

[0016] 2. Multiple seals ensure data reliability: The sealing mechanism adopts an inclined surface pushing structure (the inclined surfaces of the monitoring main frame and the pushing seat cooperate) and a sealed airbag cavity to work together: Dynamic sealing: The elastic force of the sealing spring drives the pushing plate to closely adhere to the inner wall of the monitoring through-hole to adapt to the air flow pressure fluctuation and avoid air leakage; Adaptive sealing: The gas inside the sealed airbag cavity automatically adjusts the distribution according to the pressure change, enhancing the fit between the sealing ring and the hole wall, improving the sealing performance, and ensuring that the outlet air monitoring data is free of deviation.

[0017] 3. Modular design improves installation and maintenance efficiency: Plug-in positioning: The intake air monitoring mechanism is quickly positioned through the positioning plug and the positioning jack, and the outlet air monitoring mechanism is slidably matched through the positioning column and the positioning cylinder, shortening the disassembly and assembly time; Split installation: The filter element installation cover plate and the filter element installation housing are connected by bolts, and the intake seat and the filter element intake port are screwed together, simplifying the filter element replacement process and improving the maintenance efficiency.

[0018] 4. Structural stability and monitoring reliability: Double support design: The auxiliary support frame and the support column form a rigid support for the intake cross-shaped frame, avoiding the monitor offset caused by air flow vibration, and ensuring the data stability of the intake air monitor; Independent monitoring channels: The monitoring partition plate and the monitoring through-hole form an independent air flow channel, and cooperate with the outlet air monitor to collect data in a directional manner, significantly enhancing the anti-interference ability and having a low monitoring error rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural schematic diagram of the present invention; Figure 2 is an internal structural schematic diagram of the present invention; Figure 3 is a structural schematic diagram of the monitoring partition plate of the present invention; Figure 4 Schematic structural diagram of the intake air monitoring mechanism of the present invention; Figure 5 Schematic structural diagram of the monitoring partition plate of the present invention; Figure 6 Schematic structural diagram of the sealing and pushing structure of the present invention; Figure 7 Schematic structural diagram of the sealing connection structure of the present invention; In the figure: 1. Monitoring housing; 11. Filter element installation housing; 12. Filter element installation cover plate; 13. Filter element intake port; 14. Filter element outlet port; 15. Intake filter element main body; 16. Monitoring partition plate; 161. Plate body; 162. Rubber pad; 163. Installation hole; 17. Communication port; 18. Monitoring partition plate; 181. Monitoring through hole; 182. Connection plug; 2. Intake air monitoring mechanism; 21. Intake seat; 22. Intake cross-shaped frame; 23. Intake monitor; 24. Support column; 25. Auxiliary support frame; 26. Positioning plug; 27. Positioning socket; 3. Exhaust air monitoring mechanism; 31. Monitoring main seat; 32. Monitoring main frame; 33. Exhaust air monitor; 34. Installation column; 35. Positioning cylinder; 36. Positioning column; 4. Sealing mechanism; 41. Sealing main ring; 42. Pushing plate; 43. Pushing seat; 44. Sealing spring; 45. Pushing chute; 46. Sealing airbag cavity. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1: Please refer to Figures 1 to 7 , the present invention provides a technical solution: a gas turbine intake filter element online monitoring system, including a monitoring housing 1, an intake air monitoring mechanism 2 is installed at the upper end of the monitoring housing 1, an exhaust air monitoring mechanism 3 is installed inside the monitoring housing 1, and a sealing mechanism 4 is arranged at the connection between the exhaust air monitoring mechanism 3 and the monitoring housing 1; The monitoring housing 1 includes a filter element installation housing 11. An intake filter element main body 15 is installed inside the filter element installation housing 11. A monitoring partition plate 16 is arranged outside the intake filter element main body 15. The outer side of the monitoring partition plate 16 is fixedly connected to the inner wall of the filter element installation housing 11. The intake filter element main body 15 is partitioned at multiple positions by the monitoring partition plate 16, and an air outlet monitoring mechanism 3 is installed at each position, so as to monitor the filtration conditions at each position of the intake filter element main body 15, and be able to detect in time when the intake filter element main body 15 is damaged and leaks. A communication port 17 is opened at one end of the monitoring partition plate 16. A monitoring partition board 18 is arranged on the surface of one end of the monitoring partition plate 16. A monitoring through hole 181 is opened in the middle of the monitoring partition board 18. One end of the air outlet monitoring mechanism 3 is installed on the monitoring through hole 181, which facilitates the installation of the air outlet monitoring mechanism 3 through the monitoring through hole 181. The upper end of the filter element installation housing 11 is fixedly installed with a filter element installation cover plate 12 by bolts. The middle of the filter element installation cover plate 12 is connected to the intake air monitoring mechanism 2 through a filter element intake port 13. The screwing installation of the filter element intake port 13 and the intake air monitoring mechanism 2 facilitates quick installation. The lower end of the filter element installation housing 11 is provided with a filter element air outlet 14, and the position of the filter element air outlet 14 corresponds to the position of the communication port 17. During use, the communication port 17 and the filter element air outlet 14 are communicated to facilitate air outlet; The air outlet monitoring mechanism 3 includes a monitoring main seat 31. One end of the monitoring main seat 31 is fixedly installed on the surface of the filter element installation housing 11. A sealing mechanism 4 is installed at the other end of the monitoring main seat 31. A monitoring main frame 32 is installed inside the monitoring main seat 31. An air outlet monitor 33 is installed inside the monitoring main frame 32. Air passes through the air outlet monitor 33 inside the monitoring main frame 32, which facilitates the monitoring of the filtered air. The middle of the air outlet monitor 33 is rotatably installed with an installation column 34 through a bearing. One end of the installation column 34 is screwed into the monitoring main seat 31 through a threaded hole. One side of the monitoring main frame 32 is fixedly installed with a positioning column 36 by bolts. A positioning cylinder 35 is fixedly installed inside the monitoring main seat 31 by bolts. One end of the positioning column 36 is slidably installed inside the positioning cylinder 35. During use, the sliding of the positioning cylinder 35 and the positioning column 36 facilitates the positioning of the position of the monitoring main frame 32, and the sliding of the positioning cylinder 35 and the positioning column 36 can be positioned when the monitoring main frame 32 moves, ensuring that the monitoring main frame 32 is more stable when moving.

[0022] Further, reference can be made to Figures 1 to 5, the monitoring partition plate 16 includes a plate body 161. An installation hole 163 is formed in the inner side of the plate body 161. A rubber pad 162 is arranged on the inner wall of the installation hole 163. The air intake filter element main body 15 is installed in the installation hole 163 and abuts against the rubber pad 162. And the communication port 17 is located at one end of the plate body 161. During use, the air intake filter element main body 15 can be conveniently installed through the installation hole 163, and the rubber pad 162 abuts against the air intake filter element main body 15 to ensure sealing; A connecting insert 182 is arranged on one side of the monitoring partition plate 18, and a groove is arranged on the surface of the plate body 161 corresponding to the position of the connecting insert 182. The clamping of the connecting insert 182 and the groove ensures that the monitoring partition plate 18 is installed more stably, and the outer side of the monitoring partition plate 18 is tightly sealed with the filter element installation housing 11.

[0023] As can be seen from the above description, the present invention has the following beneficial effects: During use, the space in the filter element installation housing 11 is partitioned by the monitoring partition plate 16, and the passing air flow is monitored by the monitoring partition plate 18 and the air outlet monitoring mechanism 3, so as to cooperate with the air intake monitoring mechanism 2 to monitor the filtering ability of the air intake filter element main body 15. And the segmented monitoring of the air intake filter element main body 15 can fully monitor each section of the air intake filter element main body 15, so that changes can be detected in time, and the air intake filter element main body 15 can continue to be used by blocking the monitoring through hole 181.

[0024] Embodiment 2: Please refer to Figures 1 to 7As shown in the figure, on the basis of the first embodiment, the present invention provides a technical solution: The sealing mechanism 4 includes a pushing chute 45 opened inside the monitoring main seat 31 and a pushing plate 42 slidably installed in the pushing chute 45. A sealing main ring 41 is fixedly installed on the outer surface of the pushing plate 42. A pushing seat 43 is installed inside the pushing plate 42. The outer side of the monitoring main frame 32 is tightly pressed on the pushing seat 43. The pushing seat 43 presses on the pushing plate 42 and the sealing main ring 41, so that the sealing main ring 41 closely adheres to the monitoring through hole 181 for sealing. One end of the pushing seat 43 is fixedly installed with a sealing spring 44. One end of the sealing spring 44 is fixed on the inner wall of the monitoring main seat 31. The elastic force of the sealing spring 44 ensures a stable fit between the monitoring main frame 32 and the pushing seat 43, and when disassembling, the sealing main ring 41 can be brought back by the elastic force of the sealing spring 44; The outer surfaces of the monitoring main frame 32 and the pushing seat 43 are both inclined surfaces, and the monitoring main frame 32 and the pushing seat 43 are slidably and fittingly connected through the inclined surfaces. The inclined surface sliding fit facilitates the monitoring main frame 32 to tightly press on the pushing seat 43 and push the pushing seat 43 to slide, so that the pushing plate 42 and the sealing main ring 41 bulge and closely adhere to the monitoring through hole 181 for sealing; The shape of the sealing main ring 41 is set as a ring shape, and a sealing airbag cavity 46 is arranged inside the sealing main ring 41. The sealing airbag cavities 46 are interconnected through internal channels. When in use, when the sealing main ring 41 closely adheres to the monitoring through hole 181, the gas in the sealing airbag cavity 46 circulates with each other, so as to ensure that the sealing main ring 41 stably adheres to the monitoring through hole 181 for sealing.

[0025] For the sealing mechanism 4 adopting the above technical solution, when in use, the sealing mechanism 4 seals the connection between one end of the air outlet monitoring mechanism 3 and the monitoring partition plate 18, so as to ensure that the air flow fully passes through the air outlet monitor 33 for air monitoring during use. Moreover, through the pushing of the pushing seat 43 and the pushing plate 42, it is ensured that the sealing main ring 41 fits and tightly presses in the monitoring through hole 181, and the sealing effect is better. The sealing spring 44 and the sealing airbag cavity 46 act together. The spring provides the initial sealing pressure, and the airbag cavity adapts to the change of the air flow pressure.

[0026] Further, it can be referred to Figures 1 to 4, the intake air monitoring mechanism 2 includes an intake air seat 21 screwed onto the intake air port 13 of the filter element by threads and an intake air cross-shaped frame 22 fixedly installed in the intake air seat 21 by bolts. An intake air monitor 23 is installed inside the intake air cross-shaped frame 22, which facilitates the installation of the intake air monitor 23 during use and facilitates ventilation monitoring in cooperation with the intake air cross-shaped frame 22; an auxiliary support frame 25 is fixedly installed inside the filter element installation cover plate 12. A support column 24 is arranged in the middle of the auxiliary support frame 25. A positioning plug 26 is integrally formed at one end of the support column 24. A positioning socket 27 is formed in the middle of the intake air cross-shaped frame 22. The positioning plug 26 is inserted into the positioning socket 27. By engaging the positioning plug 26 and the positioning socket 27, it is convenient for the auxiliary support frame 25 and the support column 24 to support the intake air cross-shaped frame 22.

[0027] With the monitoring housing 1 and the intake air monitoring mechanism 2 adopting the above technical solutions, during use, it is supported between the auxiliary support frame 25 and the intake air cross-shaped frame 22 by the support column 24, ensuring that it is more convenient and stable when installing and using the intake air monitor 23, and facilitating the disassembly and assembly of the intake air seat 21 quickly.

[0028] The working principle and usage process of the present invention: During installation, insert the monitoring main seat 31 into the filter element installation housing 11 and fix it with bolts. The sealing main ring 41 is located inside the monitoring through hole 181. Rotate the installation column 34 on the monitoring main seat 31 to push the monitoring main frame 32 to move, so that the monitoring main frame 32 tightly presses on the pushing seat 43, pushing the pushing seat 43 to press on the pushing plate 42 and the sealing main ring 41, making the sealing main ring 41 closely adhere to the inside of the monitoring through hole 181 for sealing, thereby ensuring that air passes through the air outlet monitor 33 inside the monitoring main frame 32, facilitating the monitoring of the filtered air. The intake air filter element main body 15 is inserted into the inside of the monitoring partition plate 16 in the filter element installation housing 11, and is stably installed through the installation hole 163 and the rubber pad 162. Then, fix the filter element installation cover plate 12 on the upper end of the filter element installation housing 11. Screw the intake air seat 21 onto the intake air port 13 through the intake air port 13. At the same time, insert the positioning plug 26 into the positioning socket 27 to ensure the stable installation of the auxiliary support frame 25, the support column 24 and the intake air cross-shaped frame 22 for the intake air monitor 23, facilitating the intake air monitor 23 to monitor the incoming air; During use, the filter element installation housing 11 is installed at the intake position of the gas turbine and is connected to the gas turbine intake pipe through the filter element outlet 14. When inhaling air through the filter element inlet 13 and the intake air monitoring mechanism 2, the incoming air is monitored by the intake air monitor 23, then filtered by the intake filter element main body 15, and then the filtered air is monitored by the outlet air monitor 33 on the outlet air monitoring mechanism 3 inside the monitoring through hole 181, so as to judge the filtering ability of the intake filter element main body 15. The intake filter element main body 15 is divided at multiple positions by the monitoring partition plate 16, and an outlet air monitoring mechanism 3 is installed at each position, so as to monitor the filtering condition of each position of the intake filter element main body 15. When damage and leakage occur in the intake filter element main body 15, it can be detected in time, and according to needs, a plugging plate can be selected to replace the monitoring main frame 32 to block the monitoring through hole 181 at the corresponding position of the damaged part of the intake filter element main body 15, so that the intake filter element main body 15 can continue to be used. It can be disassembled and the intake filter element main body 15 can be replaced when damage at multiple positions of the intake filter element main body 15 affects the ventilation of the gas turbine for use.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including the said element.

[0030] The above is only used to illustrate the technical solution of the present invention and not to limit it. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, shall all be covered by the scope of the claims of the present invention.

Claims

1. An on-line monitoring system for a gas turbine intake air filter element, characterized in that Including: A monitoring housing (1), at the upper end of the monitoring housing (1), an intake air monitoring mechanism (2) is installed, on the inner side, an exhaust air monitoring mechanism (3) is installed, and at the connection between the exhaust air monitoring mechanism (3) and the monitoring housing (1), a sealing mechanism (4) is provided; The monitoring housing (1) includes a filter element installation housing (11), at the upper end of the filter element installation housing (11), a filter element installation cover plate (12) is fixedly installed by bolts, inside, an intake air filter element main body (15) is installed, and outside the intake air filter element main body (15), a monitoring partition plate (16) is provided; The outer side of the monitoring partition plate (16) is fixedly connected to the inner wall of the filter element installation housing (11), at one end of it, a communication port (17) is opened, and on its surface, a monitoring partition board (18) is provided, in the middle of the monitoring partition board (18), a monitoring through hole (181) is opened, and one end of the exhaust air monitoring mechanism (3) is installed on the monitoring through hole (181); The exhaust air monitoring mechanism (3) includes a monitoring main seat (31), at one end of the monitoring main seat (31), it is fixedly installed on the surface of the filter element installation housing (11), at the other end, a sealing mechanism (4) is installed, inside the monitoring main seat (31), a monitoring main frame (32) is installed, inside the monitoring main frame (32), an exhaust air monitor (33) is installed, in the middle of the exhaust air monitor (33), a mounting column (34) is rotatably installed through a bearing, and one end of the mounting column (34) is screwed into the monitoring main seat (31) through a threaded hole.

2. The on-line monitoring system for the gas turbine intake air filter element according to claim 1, characterized in that: In the middle of the filter element installation cover plate (12), a filter element intake port (13) is provided, which is connected to the intake air monitoring mechanism (2); At the lower end of the filter element installation housing (11), a filter element exhaust port (14) is provided, and its position corresponds to the communication port (17) of the monitoring partition plate (16).

3. The on-line monitoring system for the intake air filter of a gas turbine according to claim 1, characterized in that: The monitoring partition plate (16) includes a plate body (161), inside the plate body (161), a mounting hole (163) is opened, on the inner wall of the mounting hole (163), a rubber pad (162) is provided, and the intake air filter element main body (15) is embedded in the mounting hole (163) and is in sealing fit with the rubber pad (162); The communication port (17) is located at one end of the plate body (161) and is communicated with the filter element exhaust port (14).

4. The on-line monitoring system for the intake air filter element of a gas turbine according to claim 3, characterized in that: On one side of the monitoring partition board (18), a connecting insert (182) is provided, on the surface of the plate body (161), at the position corresponding to the connecting insert (182), a groove is provided, and the monitoring partition board (18) is fixed by the engagement of the insert and the groove.

5. The on-line monitoring system for the intake air filter of a gas turbine according to claim 1, characterized in that: On one side of the monitoring main frame (32), a positioning column (36) is fixedly installed by bolts, inside the monitoring main seat (31), a positioning cylinder (35) is provided, and one end of the positioning column (36) is slidably installed in the positioning cylinder (35) for positioning the monitoring main frame (32).

6. The on-line monitoring system for the intake air filter of a gas turbine according to claim 1, characterized in that: The sealing mechanism (4) includes a pushing chute (45) opened inside the monitoring main seat (31), a pushing plate (42) slidably installed in the pushing chute (45), and a sealing main ring (41) fixed to the outer surface of the pushing plate (42); A pushing seat (43) is installed inside the pushing plate (42). The outer side of the main monitoring frame (32) tightly presses the pushing seat (43) through an inclined surface. One end of the pushing seat (43) is connected with a sealing spring (44), and the other end of the sealing spring (44) is fixed to the inner wall of the main monitoring seat (31).

7. The on-line monitoring system for the intake air filter of a gas turbine according to claim 6, characterized in that: The main sealing ring (41) is of an annular structure, and a sealing airbag cavity (46) is arranged inside it. The sealing airbag cavities (46) are communicated with each other through internal channels.

8. The on-line monitoring system for the intake air filter of a gas turbine according to claim 1, characterized in that: The air intake monitoring mechanism (2) includes an air intake seat (21) screwed on the air intake port (13) of the filter element through threads, and an air intake cross-shaped frame (22) fixed inside the air intake seat (21). An air intake monitor (23) is installed inside the air intake cross-shaped frame (22).

9. The on-line monitoring system for the intake air filter element of a gas turbine according to claim 8, characterized in that: An auxiliary support frame (25) is fixed inside the filter element installation cover plate (12). A support column (24) is arranged in the middle of the auxiliary support frame (25). One end of the support column (24) is integrally formed with a positioning plug (26); A positioning jack (27) is formed in the middle of the air intake cross-shaped frame (22). The positioning plug (26) is inserted into the positioning jack (27) to support and position the air intake monitoring mechanism (2).

10. The on-line monitoring system for the intake air filter of a gas turbine according to claim 1, characterized in that: The monitoring partition plate (16) divides the filter element installation housing (11) into multiple independent monitoring areas, and each area corresponds to an air outlet monitoring mechanism (3) to realize segmented independent monitoring of the air intake filter element main body (15).

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