Gas turbine air intake filter element on-line monitoring system

Abstract

The application belongs to the technical field of monitoring systems, and particularly relates to a gas turbine intake filter element online monitoring system, which comprises a monitoring shell, an intake monitoring mechanism is installed at the upper end of the monitoring shell, an exhaust monitoring mechanism is installed at the inner side of the monitoring shell, and a sealing mechanism is arranged at the connecting position of the exhaust monitoring mechanism and the monitoring shell; the problems to be solved in the scheme are insufficient monitoring precision, poor sealing performance and inconvenient maintenance; in the scheme, the intake filter element main body is divided into multiple independent monitoring areas by a monitoring partition plate, each area corresponds to an independent exhaust monitoring mechanism, local small 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 filter element does not need to be replaced as a whole, the maintenance cost is reduced, and the continuous operation of the gas turbine is ensured, and the downtime is reduced.

Description

Technical Field

[0001] This invention belongs to the field of monitoring system technology, specifically relating to an online monitoring system for gas turbine intake filter elements. Background Technology

[0002] The main functions of online monitoring of gas turbine inlet filters include ensuring stable and efficient compressor operation, protecting the compressor from damage by dust and particles, thereby extending its service life and improving overall operating efficiency. Specifically, the inlet filter is a key component ensuring the quality of the gas turbine's intake air and the cleanliness of the compressor, making its performance monitoring crucial. This system utilizes multi-sensor technology, machine learning algorithms, and electromigration measurement technology to monitor the performance of the inlet filtration system. Installed at both ends of the filter, this device can accurately and quantitatively assess filter performance, providing reliable data for filter performance evaluation.

[0003] The existing online monitoring system for gas turbine inlet filter elements has the following problems:

[0004] 1. Insufficient monitoring accuracy: Traditional systems only monitor the overall performance of the filter element from the inlet and outlet, and cannot detect minor damage or leakage in local areas of the filter element. This causes minute changes to be overlooked, affecting the operational safety of the gas turbine.

[0005] 2. Poor sealing performance: The connection between the monitoring mechanism and the filter element housing is not sealed tightly, which can easily lead to air leakage and affect the accuracy of the monitoring data;

[0006] 3. Inconvenient maintenance: When the filter element is partially damaged, the entire filter needs to be replaced, which increases maintenance costs and lacks the flexibility of segmented monitoring and selective blocking;

[0007] Therefore, it is necessary to design an online monitoring system for gas turbine inlet filter elements to solve the above problems. Summary of the Invention

[0008] The purpose of this invention is to provide an online monitoring system for gas turbine intake filters to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: an online monitoring system for gas turbine intake filter elements, comprising:

[0010] The monitoring housing has an air intake monitoring mechanism installed at its upper end and an air exhaust monitoring mechanism installed on its inner side. A sealing mechanism is provided at the connection between the air exhaust monitoring mechanism and the monitoring housing.

[0011] The monitoring housing includes a filter element mounting housing, the upper end of which is fixed with a filter element mounting cover plate by bolts, and an air intake filter element body is installed inside. A monitoring partition plate is provided on the outer side of the air intake filter element body.

[0012] The outer side of the monitoring partition plate is fixedly connected to the inner wall of the filter element mounting shell. One end of the partition plate has a communication port and a monitoring partition plate is provided on its surface. The monitoring partition plate has a monitoring through hole in the middle. One end of the gas outlet monitoring mechanism is installed on the monitoring through hole.

[0013] The exhaust gas monitoring mechanism includes a monitoring main seat, one end of which is fixedly installed on the surface of the filter element mounting shell, and the other end is equipped with a sealing mechanism. A monitoring main frame is installed on the inner side of the monitoring main seat, and an exhaust gas monitor is installed on the inner side of the monitoring main frame. A mounting column is rotatably installed in the middle of the exhaust gas monitor through a bearing, and one end of the mounting column is screwed onto the monitoring main seat through a threaded hole.

[0014] Preferably, the filter element mounting cover has a filter element air inlet in the middle, which is connected to the air inlet monitoring mechanism;

[0015] The lower end of the filter element mounting housing is provided with a filter element air outlet, the position of which corresponds to the communication port of the monitoring partition plate.

[0016] Preferably, the monitoring partition plate includes a plate body, an installation hole is provided on the inner side of the plate body, a rubber gasket is provided on the inner wall of the installation hole, and the air intake filter body is embedded in the installation hole and sealed and fitted with the rubber gasket.

[0017] The connection port is located at one end of the main body of the plate and is connected to the air outlet of the filter element.

[0018] Preferably, a connecting strip is provided on one side of the monitoring partition, and a groove is provided on the surface of the main body of the plate corresponding to the position of the connecting strip, so that the monitoring partition is fixed by the engagement of the strip and the groove.

[0019] Preferably, a positioning column is fixedly installed on one side of the monitoring main frame by bolts, and a positioning cylinder is provided on the inner side of the monitoring main seat. One end of the positioning column is slidably installed in the positioning cylinder for positioning the monitoring main frame.

[0020] Preferably, the sealing mechanism includes a push groove formed inside the monitoring main seat, a push plate slidably installed in the push groove, and a sealing main ring fixed to the outer surface of the push plate;

[0021] A push seat is installed on the inner side of the push plate, and the outer side of the monitoring main frame is pressed tightly against the push seat by an inclined surface. One end of the push seat is connected to a sealing spring, and the other end of the sealing spring is fixed to the inner wall of the monitoring main frame.

[0022] Preferably, the sealing main ring is an annular structure with a sealing airbag cavity inside, and the sealing airbag cavities are interconnected through built-in channels.

[0023] Preferably, the air intake monitoring mechanism includes an air intake seat screwed onto the air intake port of the filter element, and an air intake cross-shaped bracket fixed inside the air intake seat, wherein an air intake monitor is installed on the inner side of the air intake cross-shaped bracket.

[0024] Preferably, an auxiliary support frame is fixed to the inner side of the filter element mounting cover, and a support column is provided in the middle of the auxiliary support frame. A positioning plug is integrally formed at one end of the support column.

[0025] The air intake cross-shaped frame has a positioning hole in the middle, and the positioning plug is inserted into the positioning hole to support and position the air intake monitoring mechanism.

[0026] Preferably, the monitoring partition plate divides the filter element mounting housing into multiple independent monitoring areas, each area corresponding to an exhaust monitoring mechanism, so as to realize segmented independent monitoring of the intake filter element body.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. High-precision local monitoring and flexible maintenance: The intake filter body is divided into multiple independent monitoring areas by a monitoring partition plate. Each area corresponds to an independent exhaust monitoring mechanism, which can detect minor local damage or leakage of the filter element in real time, improving sensitivity compared to traditional whole-body monitoring. When a certain area of ​​the filter element is damaged, only the corresponding monitoring hole needs to be sealed, without replacing the entire filter element. This reduces maintenance costs and ensures continuous operation of the gas turbine, minimizing downtime.

[0029] 2. Multiple sealing mechanisms ensure data reliability: The sealing mechanism adopts an inclined surface push structure (the inclined surfaces of the monitoring main frame and the push seat cooperate) and works in conjunction with the sealing airbag cavity: Dynamic sealing: The elastic force of the sealing spring drives the push plate to fit tightly against the inner wall of the monitoring through hole, adapting to airflow pressure fluctuations and avoiding air leakage; Adaptive sealing: The gas inside the sealing airbag cavity automatically adjusts its distribution according to pressure changes, enhancing the fit between the sealing ring and the hole wall, improving sealing performance, and ensuring that the outgoing gas monitoring data is without deviation.

[0030] 3. Modular design improves installation and maintenance efficiency: Plug-in positioning: The air intake monitoring mechanism is quickly positioned by the positioning plug and positioning hole, and the air outlet monitoring mechanism slides with the positioning column and positioning cylinder, shortening the disassembly and assembly time; Split installation: The filter element mounting cover and the filter element mounting shell are connected by bolts, and the air intake seat and the filter element air inlet are screwed together, simplifying the filter element replacement process and improving maintenance efficiency.

[0031] 4. Structural stability and monitoring reliability: Dual support design: The auxiliary support frame and support column form a rigid support for the intake star-shaped frame, avoiding the monitor from shifting due to airflow vibration and ensuring the stability of the intake monitor data; Independent monitoring channel: The monitoring partition and monitoring through hole form an independent airflow channel, which, together with the exhaust monitor, collects data in a directional manner, significantly enhancing the anti-interference ability and reducing the monitoring error rate. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the monitoring partition plate structure of the present invention;

[0035] Figure 4 This is a schematic diagram of the intake monitoring mechanism of the present invention;

[0036] Figure 5 This is a schematic diagram of the monitoring partition structure of the present invention;

[0037] Figure 6 This is a schematic diagram of the sealing and pushing structure of the present invention;

[0038] Figure 7 This is a schematic diagram of the sealing connection structure of the present invention;

[0039] In the diagram: 1. Monitoring housing; 11. Filter element mounting housing; 12. Filter element mounting cover; 13. Filter element air inlet; 14. Filter element air outlet; 15. Intake filter element body; 16. Monitoring partition plate; 161. Plate body; 162. Rubber pad; 163. Mounting hole; 17. Connecting port; 18. Monitoring partition plate; 181. Monitoring through hole; 182. Connecting strip; 2. Intake monitoring mechanism; 21. Intake base; 22. Intake star-shaped frame 23. Intake monitor; 24. Support column; 25. Auxiliary support frame; 26. Positioning plug; 27. Positioning socket; 3. Exhaust monitoring mechanism; 31. Monitoring main seat; 32. Monitoring main frame; 33. Exhaust monitor; 34. Mounting column; 35. Positioning cylinder; 36. Positioning column; 4. Sealing mechanism; 41. Sealing main ring; 42. Push plate; 43. Push seat; 44. Sealing spring; 45. Push slide; 46. Sealing airbag cavity. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1: Please refer to Figures 1 to 7 The present invention provides a technical solution: an online monitoring system for gas turbine intake filter element, including a monitoring shell 1, an intake monitoring mechanism 2 installed at the upper end of the monitoring shell 1, an exhaust monitoring mechanism 3 installed on the inner side of the monitoring shell 1, and a sealing mechanism 4 provided at the connection between the exhaust monitoring mechanism 3 and the monitoring shell 1.

[0042] The monitoring housing 1 includes a filter element mounting housing 11. An intake filter element body 15 is installed inside the filter element mounting housing 11. A monitoring partition plate 16 is provided on the outer side of the intake filter element body 15. The outer side of the monitoring partition plate 16 is fixedly connected to the inner wall of the filter element mounting housing 11. The monitoring partition plate 16 divides multiple positions of the intake filter element body 15, and each position is equipped with an exhaust monitoring mechanism 3. This allows for monitoring of the filtration status at each position of the intake filter element body 15, enabling timely detection of damage or leakage in the intake filter element body 15. One end of the monitoring partition plate 16 has a connecting port 17, and one end surface of the monitoring partition plate 16 is provided with a monitoring baffle 18. A monitoring through hole 181 is provided in the middle of the partition 18. One end of the exhaust monitoring mechanism 3 is installed on the monitoring through hole 181. The monitoring through hole 181 facilitates the installation of the exhaust monitoring mechanism 3. The upper end of the filter element mounting shell 11 is fixed with a filter element mounting cover plate 12 by bolts. The middle part of the filter element mounting cover plate 12 is connected to the intake monitoring mechanism 2 through the filter element air inlet 13. The screwing installation of the filter element air inlet 13 and the intake monitoring mechanism 2 facilitates quick installation. The lower end of the filter element mounting shell 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 connecting port 17. During use, the air outlet 14 is connected to the connecting port 17 to facilitate air outlet.

[0043] The exhaust 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 mounting housing 11. A sealing mechanism 4 is installed on the other end of the monitoring main seat 31. A monitoring main frame 32 is installed inside the monitoring main seat 31. An exhaust monitor 33 is installed inside the monitoring main frame 32. Air passes through the exhaust monitor 33 inside the monitoring main frame 32, facilitating the monitoring of the filtered air. A mounting column 34 is rotatably mounted on the middle of the exhaust monitor 33 via a bearing. One end is screwed onto the monitoring main base 31 through a threaded hole. A positioning column 36 is fixedly installed on one side of the monitoring main frame 32 by bolts. A positioning cylinder 35 is fixedly installed on the inner side of the monitoring main base 31 by bolts. One end of the positioning column 36 is slidably installed in the positioning cylinder 35. During use, the position of the monitoring main frame 32 can be easily positioned by sliding the positioning cylinder 35 and the positioning column 36. When the monitoring main frame 32 moves, the sliding of the positioning cylinder 35 and the positioning column 36 can be used to position it, ensuring that the monitoring main frame 32 is more stable when it moves.

[0044] Further reading is available. Figures 1 to 5 The monitoring partition 16 includes a plate body 161. The inner side of the plate body 161 has a mounting hole 163. The inner wall of the mounting hole 163 is provided with a rubber gasket 162. The air intake filter body 15 is installed in the mounting hole 163 and fits against the rubber gasket 162. The connecting port 17 is located at one end of the plate body 161. During use, the air intake filter body 15 can be easily installed through the mounting hole 163, and the rubber gasket 162 fits against the air intake filter body 15 to ensure a seal. A connecting strip 182 is provided on one side of the monitoring partition 18, and a groove is provided on the surface of the plate body 161 corresponding to the position of the connecting strip 182. The engagement of the connecting strip 182 and the groove ensures that the monitoring partition 18 is installed more stably, and the outer side of the monitoring partition 18 is tightly sealed with the filter installation shell 11.

[0045] As can be seen from the above description, the present invention has the following beneficial effects: during use, the space inside the filter element installation housing 11 is divided by the monitoring partition plate 16, and the airflow is monitored by the monitoring partition plate 18 and the air outlet monitoring mechanism 3, thereby cooperating with the air inlet monitoring mechanism 2 to monitor the filtration capacity of the air inlet filter element body 15. Moreover, the segmented monitoring of the air inlet filter element body 15 can fully monitor each segment of the air inlet filter element body 15, so that changes can be detected in time, and the air inlet filter element body 15 can continue to be used by sealing the monitoring through hole 181.

[0046] Example 2: Please refer to Figures 1 to 7As shown, based on Embodiment 1, the present invention provides a technical solution: the sealing mechanism 4 includes a push groove 45 formed inside the monitoring main seat 31 and a push plate 42 slidably installed in the push groove 45. A sealing main ring 41 is fixedly installed on the outer surface of the push plate 42, and a push seat 43 is installed on the inner side of the push plate 42. The outer side of the monitoring main frame 32 is pressed tightly against the push seat 43, and the push seat 43 presses against the push plate 42 and the sealing main ring 41, so that the sealing main ring 41 is tightly attached to the monitoring through hole 181 for sealing. A sealing spring 44 is fixedly installed at one end of the push seat 43, and one end of the sealing spring 44 is fixed to 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 push seat 43, and allows for sealing during disassembly. The elastic force of spring 44 pulls back the sealing main ring 41; the outer surfaces of the monitoring main frame 32 and the push seat 43 are both set as inclined surfaces, and the monitoring main frame 32 and the push seat 43 are connected by sliding contact through the inclined surfaces. The sliding contact through the inclined surfaces makes it easy for the monitoring main frame 32 to press tightly on the push seat 43, pushing the push seat 43 to slide, thereby causing the push plate 42 and the sealing main ring 41 to bulge and fit tightly in the monitoring through hole 181 for sealing; the sealing main ring 41 is set as an annular shape, and the sealing main ring 41 is provided with a sealing air bladder cavity 46 inside. The sealing air bladder cavities 46 are interconnected through built-in channels. When the sealing main ring 41 is tightly attached in the monitoring through hole 181, the gas in the sealing air bladder cavity 46 circulates with each other, thereby ensuring that the sealing main ring 41 is stably attached in the monitoring through hole 181 for sealing.

[0047] The sealing mechanism 4 using the above technical solution seals the connection between one end of the air outlet monitoring mechanism 3 and the monitoring partition 18 during use, thereby ensuring that the airflow passes fully through the air outlet monitor 33 for air monitoring during use. Furthermore, the pushing of the push seat 43 and the push plate 42 ensures that the sealing main ring 41 is tightly pressed into the monitoring through hole 181, resulting in a better sealing effect. The sealing spring 44 and the sealing airbag cavity 46 work together, with the spring providing the initial sealing pressure and the airbag cavity adapting to changes in airflow pressure.

[0048] Further reading is available. Figures 1 to 4The intake monitoring mechanism 2 includes an intake seat 21 screwed onto the intake port 13 of the filter element and an intake star-shaped frame 22 fixedly installed in the intake seat 21 by bolts. An intake monitor 23 is installed on the inner side of the intake star-shaped frame 22, which facilitates the installation of the intake monitor 23 during use and facilitates ventilation monitoring in conjunction with the intake star-shaped frame 22. An auxiliary support frame 25 is fixedly installed on the inner side of the filter element mounting cover 12. A support column 24 is provided 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 insertion hole 27 is opened in the middle of the intake star-shaped frame 22. The positioning plug 26 is inserted into the positioning insertion hole 27. The positioning plug 26 and the positioning insertion hole 27 are engaged, which facilitates the auxiliary support frame 25 and the support column 24 to support the intake star-shaped frame 22.

[0049] The monitoring housing 1 and the air intake monitoring mechanism 2 using the above technical solution are supported between the auxiliary support frame 25 and the air intake cross-shaped frame 22 by the support column 24 during use, which ensures that the air intake monitor 23 is more convenient and stable to install and use, and that the air intake seat 21 can be easily and quickly disassembled and assembled.

[0050] The working principle and usage process of this invention are as follows: During installation, the monitoring main seat 31 is inserted into the filter element mounting housing 11 and fixed with bolts. The sealing main ring 41 is located inside the monitoring through hole 181. By screwing the mounting post 34 onto the monitoring main seat 31, the monitoring main frame 32 is moved, causing the monitoring main frame 32 to press tightly against the push seat 43. The push seat 43 is then pressed against the push plate 42 and the sealing main ring 41, ensuring that the sealing main ring 41 is tightly sealed inside the monitoring through hole 181. This ensures that air passes through the outlet monitoring device 33 inside the monitoring main frame 32, facilitating the monitoring of the filtered air. The air intake filter body 15 is inserted into the monitoring partition plate 16 inside the filter mounting housing 11. The air intake filter body 15 is stably installed through the mounting hole 163 and the rubber pad 162. Then, the filter mounting cover plate 12 is fixed to the upper end of the filter mounting housing 11. The air intake seat 21 is screwed onto the air intake port 13 through the air intake port 13. At the same time, the positioning plug 26 is inserted into the positioning hole 27 to ensure that the auxiliary support frame 25, support column 24 and air intake cross-shaped frame 22 are stably installed on the air intake monitor 23, so as to facilitate the air intake monitor 23 to monitor the incoming air.

[0051] During use, the filter element housing 11 is installed at the gas turbine intake position and connected to the gas turbine intake pipe through the filter element outlet 14. When air is drawn in through the filter element inlet 13 and the intake monitoring mechanism 2, the intake monitor 23 monitors the incoming air. After being filtered by the intake filter element body 15, the filtered air is then monitored by the outlet monitoring mechanism 33 on the inner side of the monitoring through-hole 181, thereby determining the filtration capacity of the intake filter element body 15. The monitoring partition 16 monitors multiple positions of the intake filter element body 15. The air intake filter body 15 is divided into rows, and each position is equipped with an exhaust monitoring mechanism 3 to monitor the filtration status of each position. When the air intake filter body 15 is damaged or leaks, it can be detected in time. If necessary, a sealing plate can be selected to replace the monitoring main frame 32 to seal the monitoring through hole 181 at the corresponding position of the damaged part of the air intake filter body 15, so that the air intake filter body 15 can continue to be used. The air intake filter body 15 can be disassembled and replaced when multiple positions of the air intake filter body 15 are damaged and affect the gas turbine's air supply.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0053] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled 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, should be covered within the scope of the claims of the present invention.

Claims

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

2. The gas turbine inlet filter online monitoring system according to claim 1, characterized in that: The filter element mounting cover (12) has a filter element air inlet (13) in the middle, which is connected to the air intake monitoring mechanism (2); The lower end of the filter element mounting housing (11) is provided with a filter element air outlet (14), which corresponds to the communication port (17) of the monitoring partition plate (16).

3. The gas turbine inlet filter online monitoring system according to claim 1, characterized in that: The monitoring partition plate (16) includes a plate body (161), and an installation hole (163) is provided on the inner side of the plate body (161). A rubber pad (162) is provided on the inner wall of the installation hole (163). The air intake filter body (15) is embedded in the installation hole (163) and sealed and fitted with the rubber pad (162). The connecting port (17) is located at one end of the plate body (161) and is connected to the air outlet (14) of the filter element.

4. The gas turbine inlet filter online monitoring system according to claim 3, characterized in that: The monitoring partition (18) is provided with a connecting strip (182) on one side, and the surface of the plate body (161) is provided with a groove corresponding to the position of the connecting strip (182). The monitoring partition (18) is fixed by the engagement of the strip and the groove.

5. The gas turbine inlet filter online monitoring system according to claim 1, characterized in that: A positioning column (36) is fixedly installed on one side of the monitoring main frame (32) by bolts. A positioning cylinder (35) is provided on the inner side of the monitoring main seat (31). One end of the positioning column (36) is slidably installed in the positioning cylinder (35) for positioning the monitoring main frame (32).

6. The gas turbine inlet filter online monitoring system according to claim 1, characterized in that: The sealing mechanism (4) includes a push groove (45) opened inside the monitoring main seat (31), a push plate (42) slidably installed in the push groove (45), and a sealing main ring (41) fixed to the outer surface of the push plate (42). A push seat (43) is installed on the inner side of the push plate (42). The outer side of the monitoring main frame (32) is pressed tightly against the push seat (43) by an inclined surface. One end of the push seat (43) is connected to a sealing spring (44), and the other end of the sealing spring (44) is fixed to the inner wall of the monitoring main frame (31).

7. The gas turbine inlet filter online monitoring system according to claim 6, characterized in that: The sealing main ring (41) is an annular structure, and a sealing airbag cavity (46) is provided inside it. The sealing airbag cavities (46) are interconnected through built-in channels.

8. The gas turbine inlet filter online monitoring system according to claim 1, characterized in that: The air intake monitoring mechanism (2) includes an air intake seat (21) screwed onto the air intake port (13) of the filter element, and an air intake cross-shaped frame (22) fixed inside the air intake seat (21), with an air intake monitor (23) installed on the inner side of the air intake cross-shaped frame (22).

9. The gas turbine inlet filter online monitoring system according to claim 8, characterized in that: An auxiliary support frame (25) is fixed on the inner side of the filter element mounting cover (12). A support column (24) is provided in the middle of the auxiliary support frame (25). A positioning plug (26) is integrally formed at one end of the support column (24). The middle part of the air intake cross-shaped frame (22) is provided with a positioning hole (27), and the positioning plug (26) is inserted into the positioning hole (27) to support and position the air intake monitoring mechanism (2).

10. The gas turbine inlet filter online monitoring system according to claim 1, characterized in that: The monitoring partition plate (16) divides the filter element installation shell (11) into multiple independent monitoring areas, each area corresponding to an exhaust monitoring mechanism (3) to realize segmented independent monitoring of the intake filter element body (15).

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