Gas engine unit air intake intelligent filtering diagnosis and blockage early warning device

Abstract

The present application relates to the technical field of gas engine intake, and particularly relates to a gas engine set intake intelligent filtering diagnosis and blockage early warning device, which comprises a gas intake cylinder, a middle frame is fixedly connected through a middle part of an outer wall of the gas intake cylinder, a round block is sealingly and rotatably connected between upper and lower sides of the middle frame on an inner side of the gas intake cylinder, and four air passing holes are formed through a top end of the round block, the original single gas screening channel is divided into four parts through the arrangement of the middle frame, the round block, a replacement mechanism and a limiting mechanism, and the replacement mechanism is arranged, so that when the screen is replaced, one of the air passing holes is individually closed to replace the screen, the normal gas intake of the gas engine set is not affected, the equipment does not need to be stopped for maintenance, workers do not need to disassemble, and whether the screen is blocked can be judged according to gas flow data of two ends of the screen measured by a pressure tapping pipe, so that the screen can be replaced.

Description

Technical Field

[0001] This invention relates to the field of generator air intake technology, and in particular to an intelligent air intake filtration diagnosis and blockage early warning device for gas generator sets. Background Technology

[0002] During the operation of a gas generator set, the gas being transported may contain impurities. To prevent these particles from affecting the power generation unit, a filtration structure is installed during transport to filter the impurities in the gas. The degree of blockage is monitored in real time, and early warnings are issued to ensure clean combustion of the gas, reduce PM / NOx emissions, and help achieve the "dual carbon" target. Moreover, if the gas is directly introduced into the cylinder without treatment, it will exacerbate the emission of secondary pollutants such as NOx and PM. The device ensures the cleanliness of the gas through "filtration + diagnosis + early warning," reduces incomplete combustion and the subsequent flue gas treatment load, and at the same time achieves the target of reducing air pollutant emissions, thereby improving the effectiveness of air pollution prevention and control.

[0003] As operating time increases, dust continuously accumulates on the filter element surface, increasing flow resistance. Currently, differential pressure transmitters are commonly used to monitor the static pressure difference across the filter element. When the pressure difference between the two points exceeds a set threshold, blockage is detected and an alarm is triggered. However, the filter element and the differential pressure sensor share a narrow-diameter pressure tapping tube, which is easily blocked by a mixture of coal dust, salt crystals, and condensate in high-humidity, sulfur-containing environments, causing signal drift, false alarms, or malfunctions. To avoid protection failure, power plants can only shut down and lock the system at fixed intervals, manually disassemble the filter element for replacement, and purge each pressure tapping tube. This requires frequent maintenance, high labor intensity, and the opening process carries the risk of gas leakage and explosion.

[0004] Therefore, an intelligent intake filtration diagnostic and blockage early warning device for gas generator sets is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art by proposing an intelligent air intake filtration diagnosis and blockage early warning device for gas generator sets.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a gas generator set air intake intelligent filtration diagnosis and blockage early warning device, including a gas intake cylinder, a middle frame fixedly connected through the middle of the outer wall of the gas intake cylinder, a circular block rotatably connected between the upper and lower sides of the middle frame on the inner side of the gas intake cylinder, four air passage holes through the top of the circular block, mounting grooves through the middle of the outer wall of the circular block relative to the positions next to the air passage holes, a mounting frame inserted into the inner side of the mounting groove, a screen fixedly connected to the side wall of the mounting frame relative to the position inside the air passage holes, a rotating mechanism for driving the circular block to rotate is provided on the inner side of the middle frame, four pairs of pressure tapping pipes are fixedly connected through the outer wall of the circular block, and all four pairs of pressure tapping pipes are connected to the inner side of the air passage holes, and each pair of pressure tapping pipes is arranged on the upper and lower sides of the screen, a replacement mechanism for automatically replacing the screen is provided on the inner side of the middle frame, and a limiting mechanism for locking the position of the screen is provided in the mounting frame.

[0007] In the above technical solution, the limiting mechanism further includes limiting plates, and four pairs of limiting plates are provided. The four pairs of limiting plates are slidably connected to both ends of the inner side of the mounting frame. The limiting plates are inclined on the side away from each other. Several right-angled grooves with inclined surfaces are equally spaced at both ends of the inner side of the mounting groove. Several limiting springs are fixedly connected between the inner side of the mounting frame and the side wall of the limiting plate. The side wall of the limiting plate is provided with a squeezing groove, and the squeezing grooves are inclined on the side close to each other. The side wall of the mounting frame is provided with a slot next to the squeezing groove.

[0008] In the above technical solution, the replacement mechanism further includes a bidirectional electric telescopic cylinder, a rotating frame is rotatably connected to the inner side of the middle frame, the bidirectional electric telescopic cylinder is fixedly connected to the inner side of the rotating frame, an electromagnet plate is fixedly connected to the output end of the bidirectional electric telescopic cylinder, an iron block is fixedly connected to the side wall of the mounting frame, a magnetic suction groove is opened on the side of the electromagnet plate that is far apart from each other, an L-shaped plate is slidably connected to the side wall of one of the electromagnet plates, the L-shaped plates are inclined on the side that is close to each other, a pair of telescopic devices are fixedly connected to the side wall of the electromagnet plate, the output ends of the telescopic devices are fixedly connected to the inner side of the L-shaped plate, an upper frame and a lower frame are fixedly connected to the inner side of the middle frame respectively, a material replacement groove is opened on the outer wall of the middle frame at the position above the upper frame and below the lower frame, and a sealing plate is installed on the outer wall of the middle frame at the position relative to the material replacement groove by bolts.

[0009] In the above technical solution, further, the upper frame sidewall is provided with an outlet, the upper frame sidewall is fixedly connected with a lifting and sealing door, the top of the middle frame is fixedly connected with a pair of lifters, the output ends of the lifters are fixedly connected with a sealing plate for sealing the top of the lower frame, and ventilation equipment is fixedly connected through the inner sides of both the upper and lower frames.

[0010] In the above technical solution, a replacement motor is further fixedly connected to the top of the middle frame, and the output end of the replacement motor passes through the top of the middle frame and is fixedly connected to the top of the rotating frame.

[0011] In the above technical solution, the rotating mechanism further includes a rotating motor, which is fixedly connected to the top of the middle frame. A gear ring is fixedly connected to the outer wall of the circular block, and the output end of the rotating motor passes through the top of the middle frame and is fixedly connected to a gear that meshes with the gear ring.

[0012] In the above technical solution, the pressure tapping tubes are all connected to an external intelligent differential pressure sensor through connecting tubes. Each pair of pressure tapping tubes is fixedly connected to an L-shaped tube on the side closest to each other. Each L-shaped tube is equipped with a one-way valve, and each pressure tapping tube is equipped with a push valve at a position relative to the L-shaped tube.

[0013] In the above technical solution, further, a pair of L-shaped connecting brackets are fixedly connected to the side wall of one of the electromagnet plates. Each of the L-shaped connecting brackets is fixedly connected to an extrusion plate on the side away from each other, and the side walls of the extrusion plates are all inclined. A U-shaped connecting pipe is fixedly connected to the side wall of the electromagnet plate through a pair of brackets. Straight pipes are fixedly connected to both ends of the connecting pipe, and conical sealing rings are fixedly connected to the side ends of the straight pipes. The connecting pipe is connected to an external nitrogen flushing device through a flexible hose.

[0014] In the above technical solution, the four air passages are further provided with inclined sides, sealing strips are fixedly connected to both sides of the outer wall of the screen, and sealing valves are provided at the upper and lower ends of the inner side of the air passages.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention divides the original single air-screening channel into four parts through the setting of a middle frame, circular block, replacement mechanism and limiting mechanism. In addition, the setting of the replacement mechanism allows for the replacement of the screen by sealing one of the air passages separately, without affecting the normal air intake of the gas generator set. No equipment shutdown is required for maintenance, and no workers are required to disassemble it. It is only necessary to measure the gas flow data at both ends of the screen by the pressure tapping pipe to determine whether the screen is blocked and replace it.

[0016] 2. By setting up structures such as connecting pipes, extrusion plates, and straight pipes, this invention can block the corresponding pressure tapping pipes while replacing the screen. Furthermore, the nitrogen flusher is connected to the pressure tapping pipes through hoses, connecting pipes, and straight pipes, thereby enabling nitrogen flushing of the end of the pressure tapping pipes while removing the screens, thus achieving automatic maintenance of the blockage warning device. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall appearance structure of the gas intake cylinder of the present invention; Figure 2 This is a frontal full-section three-dimensional structural diagram of the gas intake cylinder of the present invention; Figure 3 Appendix of the present invention Figure 2 A magnified view of the structure at point A in the middle; Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the front of the gas intake cylinder of the present invention; Figure 5 This is a schematic diagram of the separate structure of the circular block, upper frame, lower frame and sealing plate of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the circular block and screen separation of the present invention; Figure 7 This is a schematic diagram of the overall appearance structure of the rotating frame and electromagnet plate of the present invention; Figure 8 This is a bottom-view three-dimensional structural diagram of the bidirectional electric telescopic cylinder and electromagnet plate of the present invention. Figure 9 This is a top-view, full-section three-dimensional structural diagram of the screen and mounting frame of the present invention.

[0018] In the diagram: 1. Gas inlet cylinder; 2. Middle frame; 3. Round block; 4. Air passage; 5. Mounting slot; 6. Mounting frame; 7. Screen; 8. Pressure tapping pipe; 9. Limiting plate; 10. Right-angle slot; 11. Limiting spring; 12. Extrusion slot; 13. Two-way electric telescopic cylinder; 14. Rotating frame; 15. Electromagnetic plate; 16. Iron block; 17. L-shaped plate; 18. Expansion joint; 19. Upper frame; 20. Lower frame; 21. Lifting sealing door; 22. Material changing trough 23. Sealing plate; 24. Lifter; 25. Sealing plate; 26. Ventilation equipment; 27. Replacement motor; 28. Rotary motor; 29. ​​Gear ring; 30. Gear; 31. Connecting pipe; 32. L-shaped pipe; 33. Check valve; 34. Press valve; 35. L-shaped connecting bracket; 36. Extrusion plate; 37. Connecting pipe; 38. Straight pipe; 39. Conical sealing ring; 40. Sealing strip; 41. Bracket; 42. Hoses; 43. Sealing valve. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0021] In actual use, it was found that as the operating time increased, dust continued to accumulate on the surface of the filter element, and the flow resistance increased accordingly. In order to avoid protection failure, the power plant could only shut down and lock the machine at fixed intervals and manually disassemble the filter element for replacement. This required frequent maintenance, high labor intensity, and there was a risk of gas leakage and explosion during the opening process. To solve the above problems, the following structure was invented.

[0022] like Figures 1-9 The invention relates to an intelligent air intake filtration diagnosis and blockage early warning device for a gas generator set, comprising a gas intake cylinder 1. A middle frame 2 is fixedly connected through the middle of the outer wall of the gas intake cylinder 1. A circular block 3 is rotatably connected between the upper and lower sides of the middle frame 2 on the inner side of the gas intake cylinder 1. Four air passage holes 4 are opened through the top of the circular block 3. An installation groove 5 is opened through the middle of the outer wall of the circular block 3 at the position next to the air passage holes 4. An installation frame 6 is inserted into the inner side of the installation groove 5. A screen 7 is fixedly connected to the side wall of the installation frame 6 at the position inside the air passage holes 4. During the operation of the gas generator set, gas enters the generator set through the storage tank and passes through the gas intake cylinder 1 and the screen 7 in the air passage holes 4, thereby filtering out impurities in the gas, ensuring gas cleanliness, reducing incomplete combustion and subsequent flue gas treatment load, and achieving the air pollutant emission reduction target, thus improving the air pollution prevention and control effect. The inner side of the middle frame 2 is provided with a rotating mechanism for driving the circular block 3 to rotate. Four pairs of pressure tapping pipes 8 are fixedly connected through the outer wall of the circular block 3, and all four pairs of pressure tapping pipes 8 are connected to the inner side of the air passage 4. Each pair of pressure tapping pipes 8 is set on the upper and lower sides of the screen 7. The inner side of the middle frame 2 is provided with a replacement mechanism for automatically replacing the screen 7. The mounting frame 6 is provided with a limiting mechanism for locking the position of the screen 7. The limiting mechanism includes limiting plates 9, and there are four pairs of limiting plates 9. All four pairs of limiting plates 9 are slidably connected to the two ends of the inner side of the mounting frame 6. The limiting plates 9 are inclined on the side away from each other. Several right-angled grooves 10 with inclined surfaces are equally spaced at both ends of the inner side of the mounting groove 5. Several limiting springs 11 are fixedly connected between the inner side of the mounting frame 6 and the side wall of the limiting plate 9. The side wall of the limiting plate 9 is provided with extrusion grooves 12, and the extrusion grooves 12 are inclined on the side close to each other. The side wall of the mounting frame 6 is provided with slots next to the extrusion grooves 12. The replacement mechanism includes a bidirectional electric telescopic cylinder 13, a rotating frame 14 rotatably connected to the inner side of the middle frame 2, a bidirectional electric telescopic cylinder 13 fixedly connected to the inner side of the rotating frame 14, an electromagnet plate 15 fixedly connected to the output end of the bidirectional electric telescopic cylinder 13, an iron block 16 fixedly connected to the side wall of the mounting frame 6, a magnetic suction groove opened on the side away from the electromagnet plate 15, an L-shaped plate 17 slidably connected through the side wall of one of the electromagnet plates 15, the L-shaped plates 17 are inclined on the side close to each other, a pair of telescopic devices 18 fixedly connected to the side wall of the electromagnet plate 15, the output end of the telescopic devices 18 fixedly connected to the inner side of the L-shaped plate 17, an upper frame 19 and a lower frame 20 fixedly connected to the inner side of the middle frame 2, a material changing groove 22 opened on the outer wall of the middle frame 2 above the upper frame 19 and below the lower frame 20, and a sealing plate 23 is installed on the outer wall of the middle frame 2 at the position relative to the material changing groove 22 by bolts; An outlet is provided on the side wall of the upper frame 19. The outlet facilitates the replacement mechanism to remove the new screen 7 stored in the upper frame 19. A lifting sealing door 21 is fixedly connected to the side wall of the upper frame 19. The lifting sealing door 21 can be used to seal the outlet when the upper frame 19 needs to be opened to prevent gas leakage. A pair of lifters 24 are fixedly connected to the top of the middle frame 2. A sealing plate 25 for sealing the top of the lower frame 20 is fixedly connected between the output ends of the lifters 24. Ventilation devices 26 are fixedly connected through the inner sides of both the upper frame 19 and the lower frame 20. The ventilation devices 26 can be used to extract the gas from the sealed upper frame 19 and lower frame 20 for ventilation, ensuring that no gas leakage occurs when the upper frame 19 and lower frame 20 are opened. A replacement motor 27 is fixedly connected to the top of the middle frame 2. The output end of the replacement motor 27 passes through the top of the middle frame 2 and is fixedly connected to the top of the rotating frame 14. The rotating mechanism includes a rotary motor 28, which is fixedly connected to the top of the middle frame 2. A toothed ring 29 is fixedly connected to the outer wall of the round block 3. The output end of the rotary motor 28 passes through the top of the inner part of the middle frame 2 and is fixedly connected to a gear 30 that meshes with the toothed ring 29. The four air holes 4 are inclined on both sides, and sealing strips 40 are fixedly connected to both sides of the outer wall of the screen 7. The sealing strips 40 can ensure the sealing performance after the screen 7 is installed in the air holes 4. The air holes 4 are inclined on both sides, so the deeper the screen 7 is inserted, the greater the force of squeezing the sealing strips 40, and the better the sealing performance. Sealing valves 43 are provided at both the upper and lower ends of the inner side of the air holes 4. The sealing valves 43 can ensure that no gas passes through the air holes 4 during the replacement of the screen 7. Before use, first control the lifting sealing door 21 to block the opening, and control the lifting device 24 to move the sealing plate 25 down to block the top of the lower frame 20. Then control the ventilation device 26 to start and extract the gas from the upper frame 19 and the lower frame 20 for ventilation. Then open the sealing plate 23, take out the screen 7 that was replaced in the lower frame 20, and put the new screen 7 into the upper frame 19. Note that when placing it, it needs to be placed in the installation direction. Then repeat the above operation in reverse to reset. When the screen 7 in the gas inlet cylinder 1 needs to be replaced, first control the rotary motor 28 to start and drive the gear 30 to rotate, which in turn drives the meshing groove gear ring 29 to rotate, thereby driving the round block 3 to rotate in the gas inlet cylinder 1, so that the screen 7 that needs to be replaced is rotated to the position next to the electromagnet plate 15. Then control the rotary motor 28 to stop running, and then control the corresponding sealing valve 43 to close and block the air passage 4 of the screen 7 that needs to be replaced. Then, the bidirectional electric telescopic cylinder 13 is activated to move the electromagnet plate 15 to both sides, so that the magnetic slot on the electromagnet plate 15 is engaged with the iron block 16 (at this time, one of the electromagnet plates 15 on both sides attracts the iron block 16 on the round block 3, and the other attracts the iron block 16 in the upper frame 19). Then, the electromagnet plate 15 is activated to hold the iron block 16, and then the telescopic device 18 is activated to move the L-shaped plate 17, so that the L-shaped plate 17 passes through the slot and is inserted into the extrusion groove 12. At this time, the inclined surface of the L-shaped plate 17 will push the extrusion. The inclined surface of the groove 12 causes the limiting plate 9 to slide towards the center, while compressing the limiting spring 11. This causes the limiting plate 9 to slide out of the right-angle groove 10 away from the side, releasing the position restriction on the mounting frame 6 and the screen 7. Then, the bidirectional electric telescopic cylinder 13 can be controlled to start and reset, driving the two mounting frames 6 and the screen 7 to move towards the center, so that one of the screens 7 is pulled out from the upper frame 19 (after being pulled out, the screen 7 stored in the upper frame 19 will fall downwards under its own weight), and the other screen 7 is pulled out from the round block 3. Then, the replacement motor 27 can be started to drive the rotating frame 14 to rotate, thereby driving the bidirectional electric telescopic cylinder 13 and the screen 7 to rotate (during this process, the telescopic device 18 is controlled to drive the L-shaped plate 17 to reset, thereby releasing the pressure on the limiting plate 9). Subsequently, when the screen 7 taken out from the round block 3 rotates to the top of the lower frame 20, one of the electromagnet plates 15 can be de-energized to release the adsorption on the old screen 7. Then, the screen 7 falls into the lower frame 20 under its own weight. Then, the replacement motor 27 continues to run, and the screen 7 taken out from the upper frame 19 rotates to the position next to the mounting slot 5. The bidirectional electric telescopic cylinder 13 can then be started to insert the new screen 7 into the mounting slot 5. During this process, the inner wall of the mounting slot 5 will be squeezed. The inclined surface of the limiting plate 9, since the limiting plate 9 can only slide laterally, will be pushed towards the center under compression, compressing the limiting spring 11. Then, when the limiting plate 9 moves to the right angle groove 10, the compression on the limiting plate 9 will be released, and it will be pushed back to its original position under the elastic force of the limiting spring 11, so that the limiting plate 9 is inserted into the corresponding right angle groove 10 on the side away from the original position. As the mounting frame 6 continues to be inserted, the inclined surface of the right angle groove 10 will compress the inclined surface of the limiting plate 9. The above compression operation is repeated until the mounting frame 6 and the screen 7 are tightly installed in the mounting groove 5. At this time, the limiting plate 9 is inserted into one of the right angle grooves 10. Finally, the electromagnet plate 15 is de-energized, and then the bidirectional electric telescopic cylinder 13 and the replacement motor 27 are reset in sequence.

[0023] In summary, through the above structural design, the original single air passage is divided into four parts. Furthermore, with the replacement mechanism in place, when replacing the screen 7, one of the air passages 4 can be closed separately to replace the screen 7 without affecting the normal air intake of the gas generator set. No equipment shutdown is required for maintenance, and no workers are needed to disassemble it. It is only necessary to measure the gas flow data at both ends of the screen 7 using the pressure tapping pipe 8 to determine whether the screen 7 is blocked and replace it.

[0024] Based on the above embodiments, it was found during use that impurities in the gas generator set can easily clog the pressure tapping pipe 8, causing problems such as signal drift, false alarms, or malfunctions. To avoid protection failure, the power plant can only shut down and lock the unit at fixed intervals and manually purge each pressure tapping pipe 8. This requires frequent maintenance, high labor intensity, and there is a risk of gas leakage and explosion during the opening process. To solve the above problems, further improvements were made to the above structure.

[0025] All pressure taps 8 are connected to an external intelligent differential pressure sensor via connecting pipes 31. Each pair of pressure taps 8 has an L-shaped pipe 32 fixedly connected to the side closest to each other. Each L-shaped pipe 32 is equipped with a one-way valve 33. The one-way valve 33 prevents external gas from entering the L-shaped pipe 32 when it is not in use. It can only be used when nitrogen is filled. Each pressure tap 8 is equipped with a push valve 34 next to the L-shaped pipe 32, and the push end of the push valve 34 is set as a smooth arc surface. One of the electromagnet plates 15 has a pair of L-shaped connecting brackets 35 fixedly connected to its side wall. Each L-shaped connecting bracket 35 has a pressing plate 36 fixedly connected to its opposite side. The side walls of the pressing plates 36 are all inclined. The side wall of the electromagnet plate 15 has a U-shaped connecting pipe 37 fixedly connected to its side wall via a pair of brackets 41. Both ends of the connecting pipe 37 are fixedly connected to straight pipes 38. The side ends of the straight pipes 38 are fixedly connected to conical sealing rings 39. The conical sealing rings 39 ensure the sealing performance when the straight pipes 38 and L-shaped pipes 32 are connected. The connecting pipe 37 is connected to an external nitrogen flusher via a hose 42. During the replacement of screen 7, when the electromagnet plate 15 is moved to the side of the mounting frame 6 by the bidirectional electric telescopic cylinder 13, it will drive the L-shaped connecting frame 35 and the extrusion plate 36 to move together. During this process, the extrusion plate 36 will move to the side of the pressure tapping pipe 8, and then the inclined surface of the extrusion plate 36 will squeeze the pressing end of the pressing valve 34, thereby blocking the pressure tapping pipe 8. Subsequently, the bracket 41, the connecting pipe 37, the straight pipe 38 and the conical sealing ring 39 will be inserted into the L-shaped pipe 32. Thus, during the start-up and operation of the control telescopic device 18, the external nitrogen flushing device can be started, and the nitrogen gas can be discharged through the hose. 42. The connecting pipe 37, straight pipe 38 and L-shaped pipe 32 deliver nitrogen to the end of the pressure tapping pipe 8 and spray it out to flush the end of the pressure tapping pipe 8. Then the sprayed gas enters the gas inlet cylinder 1 and mixes with the gas. (It should be noted that filling the gas with nitrogen for flushing will not generate new pollutants or cause an explosion. On the contrary, it dilutes the gas and suppresses the explosion. As long as the mixing ratio and oxygen content are controlled, it is a legally recognized inert protection measure.) Then when the bidirectional electric telescopic cylinder 13 resets, it will drive the extrusion plate 36 and the conical sealing ring 39 to repeat the above operation in the opposite direction to reset.

[0026] In summary, through the design of the above structure, the corresponding pressure tapping pipe 8 can be blocked while replacing the screen 7, and the nitrogen flusher can be connected to the pressure tapping pipe 8 through the hose 42, the connecting pipe 37 and the straight pipe 38. Thus, while removing the screen 7, the end of the pressure tapping pipe 8 can be flushed with nitrogen, thereby realizing automatic maintenance of the blockage warning device.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention.

[0028] Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A gas generator set air intake intelligent filtration diagnosis and blockage early warning device, comprising a gas intake cylinder (1), characterized in that: A middle frame (2) is fixedly connected through the middle of the outer wall of the gas inlet cylinder (1). A round block (3) is rotatably connected between the upper and lower sides of the middle frame (2) on the inner side of the gas inlet cylinder (1). Four air holes (4) are opened through the top of the round block (3). An installation groove (5) is opened through the middle of the outer wall of the round block (3) at the position next to the air holes (4). An installation frame (6) is inserted into the inner side of the installation groove (5). The side wall of the installation frame (6) is fixed relative to the position inside the air holes (4). A screen (7) is connected. The inner side of the middle frame (2) is provided with a rotating mechanism for driving the circular block (3) to rotate. The outer wall of the circular block (3) is fixedly connected with four pairs of pressure tapping pipes (8). All four pairs of pressure tapping pipes (8) are connected to the inner side of the air passage (4). Each pair of pressure tapping pipes (8) is set on the upper and lower sides of the screen (7). The inner side of the middle frame (2) is provided with a replacement mechanism for automatically replacing the screen (7). The mounting frame (6) is provided with a limiting mechanism for locking the position of the screen (7).

2. The intelligent intake filtration diagnosis and blockage early warning device for a gas generator set according to claim 1, characterized in that: The limiting mechanism includes a limiting plate (9), and four pairs of limiting plates (9) are provided. The four pairs of limiting plates (9) are slidably connected to both ends of the inner side of the mounting frame (6). The limiting plates (9) are inclined on the side away from each other. Several right-angled grooves (10) with inclined surfaces are equally spaced at both ends of the inner side of the mounting groove (5). Several limiting springs (11) are fixedly connected between the inner side of the mounting frame (6) and the side wall of the limiting plate (9). The side wall of the limiting plate (9) is provided with a squeezing groove (12), and the squeezing grooves (12) are inclined on the side close to each other. The side wall of the mounting frame (6) is provided with a slot next to the squeezing groove (12).

3. The intelligent intake filtration diagnosis and blockage early warning device for a gas generator set according to claim 1, characterized in that: The replacement mechanism includes a bidirectional electric telescopic cylinder (13). A rotating frame (14) is rotatably connected to the inner side of the middle frame (2). The bidirectional electric telescopic cylinder (13) is fixedly connected to the inner side of the rotating frame (14). Electromagnetic plates (15) are fixedly connected to the output ends of the bidirectional electric telescopic cylinder (13). Iron blocks (16) are fixedly connected to the side walls of the mounting frame (6). Magnetic suction grooves are provided on the opposite side of each electromagnetic plate (15). An L-shaped plate (17) is slidably connected through the side wall of one of the electromagnetic plates (15). (17) The electromagnet plate (15) is inclined on one side. A pair of telescopic devices (18) are fixedly connected to the side wall of the electromagnet plate (15). The output ends of the telescopic devices (18) are fixedly connected to the inside of the L-shaped plate (17). The inner side of the middle frame (2) is fixedly connected to the upper frame (19) and the lower frame (20). The outer wall of the middle frame (2) is provided with a material changing groove (22) above the upper frame (19) and below the lower frame (20). The outer wall of the middle frame (2) is sealed with a sealing plate (23) by bolts at the position of the material changing groove (22).

4. The intelligent intake filtration diagnosis and blockage early warning device for a gas generator set according to claim 3, characterized in that: The upper frame (19) has an outlet on its side wall. A lifting and sealing door (21) is fixedly connected to the side wall of the upper frame (19). A pair of lifters (24) are fixedly connected to the top of the middle frame (2). A sealing plate (25) for sealing the top of the lower frame (20) is fixedly connected between the output ends of the lifters (24). A ventilation device (26) is fixedly connected through the inner sides of both the upper frame (19) and the lower frame (20).

5. The intelligent intake filtration diagnosis and blockage early warning device for a gas generator set according to claim 3, characterized in that: A replacement motor (27) is fixedly connected to the top of the middle frame (2), and the output end of the replacement motor (27) passes through the top of the middle frame (2) and is fixedly connected to the top of the rotating frame (14).

6. The intelligent intake air filtration diagnosis and blockage early warning device for a gas generator set according to claim 1, characterized in that: The rotating mechanism includes a rotary motor (28), which is fixedly connected to the top of the middle frame (2). A gear ring (29) is fixedly connected to the outer wall of the round block (3). The output end of the rotary motor (28) passes through the top of the middle frame (2) and is fixedly connected to a gear (30) that meshes with the gear ring (29).

7. The intelligent intake filtration diagnosis and blockage early warning device for a gas generator set according to claim 1, characterized in that: The pressure tapping tubes (8) are all connected to the external intelligent differential pressure sensor through the connecting tube (31). Each pair of pressure tapping tubes (8) is fixedly connected to an L-shaped tube (32) on the side closest to each other. Each L-shaped tube (32) is equipped with a one-way valve (33). Each pressure tapping tube (8) is equipped with a push valve (34) at a position relative to the L-shaped tube (32).

8. The intelligent intake filtration diagnosis and blockage early warning device for a gas generator set according to claim 3, characterized in that: One of the electromagnet plates (15) has a pair of L-shaped connecting brackets (35) fixedly connected to its side wall. Each of the L-shaped connecting brackets (35) has a pressing plate (36) fixedly connected to its opposite side. The side walls of the pressing plates (36) are all inclined. The side walls of the electromagnet plate (15) have a pair of U-shaped connecting pipes (37) fixedly connected to its side wall by a pair of brackets (41). Both ends of the connecting pipes (37) are fixedly connected to straight pipes (38), and the side ends of the straight pipes (38) are fixedly connected to conical sealing rings (39). The connecting pipes (37) are connected to an external nitrogen flusher through a hose (42).

9. The intelligent intake air filtration diagnosis and blockage early warning device for a gas generator set according to claim 1, characterized in that: The four air passages (4) are inclined on both sides, and sealing strips (40) are fixedly connected to both sides of the outer wall of the screen (7). Sealing valves (43) are provided at both the upper and lower ends of the inner side of the air passages (4).

Images