A flue gas treatment device for a diesel generator set

Abstract

The present invention relates to the technical field of flue gas treatment, and discloses a flue gas treatment device for a diesel generator set, comprising a shell, one end of which is provided with an air inlet. The flue gas treatment device for a diesel generator set, through the provided filtering mechanism, switching mechanism and driven component, when used for a long time, the filter plate becomes clogged, and the flue gas entering the exhaust duct cannot be discharged through the corresponding exhaust duct. The pressure in the exhaust duct gradually increases. Under the influence of the pressure, the movable disk in the cylinder is pushed to move to the side away from the center of the exhaust duct, and the L-shaped clamping rod is controlled to release the limit on the slider. Under the action of its own elasticity, the spring piece pushes the slider to move upward, and the slider moves upward with the push rod, and the push rod contacts the pull rope. The pull rope is used to pull the guide plate to adjust the angle, thereby realizing the switching of the exhaust duct. When replacing the filter plate, there is no need to stop working, and there is no need for staff to check regularly, and it is easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas treatment, in particular to a flue gas treatment device for a diesel generator set. Background Art

[0002] A diesel generator set is a power supply device that uses a diesel engine as the prime mover to drive a synchronous generator to generate electricity. When a diesel generator set is working, the flue gas it generates needs to be treated by a flue gas treatment device to prevent environmental pollution.

[0003] For example, a flue gas treatment device for a diesel generator set is published with the announcement number "CN217431168U". In this flue gas treatment device for a diesel generator set, the exhaust gas enters through the air inlet and passes through the surface of the mounting drum. At this time, the airflow drives the turbofan blades on the inner side of the mounting drum, thereby driving the mounting drum to rotate, and indirectly driving the brush to rotate to clean the filter screen, thereby avoiding long-term use causing dust in the flue gas to clog the filter screen and reduce the air flow rate, thereby extending the service life and reducing the cleaning frequency.

[0004] However, in actual operation, when the filter is clogged, the energy brought by the exhaust gas can hardly continue to drive the turbofan blades to rotate, and the filter can only be disassembled and replaced. However, when the filter is replaced, the existing flue gas treatment equipment of the diesel generator set can only stop the equipment and then replace the filter, which affects the work efficiency, and requires staff to check the filter regularly to avoid filter blockage and failure to discover it in time, resulting in blockage of the device and affecting normal work. For this reason, we propose a flue gas treatment device for diesel generator sets. Summary of the invention

[0005] The object of the present invention is to provide a flue gas treatment device for a diesel generator set to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flue gas treatment device for a diesel generator set, comprising a shell, one end of the shell is provided with an air inlet, the other end of the shell is provided with two groups of exhaust pipes, the two groups of exhaust pipes and the shell are in a Y shape, a filtering mechanism for filtering the flue gas is provided on the exhaust pipe, a switching mechanism for switching the direction of the flue gas is provided inside and on the surface of the shell, a driven component for controlling the switching mechanism is provided inside the shell and the exhaust pipe, two groups of the filtering mechanism and the driven component are provided, and the two groups of filtering mechanism and the driven component are provided on the two groups of exhaust pipes.

[0007] Preferably, the filter mechanism includes a movable frame, which is plugged into the exhaust duct, a filter plate is clamped on the top of the movable frame, a fixing ring is fixed on the surface of the movable frame, a threaded ring is rotatably installed on the top of the fixing ring, a connecting thread is provided on the surface of the exhaust duct, a rubber ring is fixed on the inner wall of the exhaust duct, the filter plate is placed on the top of the movable frame and clamped with the movable frame, the movable frame is inserted from the bottom of the exhaust duct, and the threaded ring is connected to the connecting thread on the surface of the exhaust duct by rotating the threaded ring, thereby completing the installation of the filter mechanism, and after the installation is completed, the filter plate on the top of the movable frame contacts with the rubber ring on the inner wall of the exhaust duct to ensure sealing.

[0008] Preferably, a movable groove is provided on the side of the exhaust duct, and the movable rack can be moved through the movable groove to connect the movable rack with the exhaust duct.

[0009] Preferably, the switching mechanism includes a rotating shaft, which passes through the shell and is rotatably connected to the shell, a sealed bearing is provided at the position where the rotating shaft is connected to the shell, a guide plate is fixed to the surface of the rotating shaft, a rubber pad is provided on the surface of the guide plate, and a pointer is fixed to the end of the rotating shaft extending out of the shell, and the rubber pad on the surface of the guide plate contacts the inner wall of the shell to ensure that the guide plate can separate the space inside the shell, and by controlling the angle of the guide plate, the smoke entering the shell can be guided so that it can enter two different exhaust ducts. The set pointer allows the staff to directly judge the current angle of the guide plate, thereby achieving more convenient replacement of the filter plate.

[0010] Preferably, the driven component includes a vertical groove, which is formed on the inner wall of the exhaust duct, a slider is slidably connected to the inner side of the vertical groove, two groups of sliders are provided, a spring is fixed between the two groups of sliders, a return spring is fixed to the bottom of the slider, one end of the return spring away from the slider is fixed to the inner side of the vertical groove, a push rod is fixed to the top of the slider, a pull rope is fixed to the side of the guide plate, one end of the pull rope away from the guide plate is fixed to the inner wall of the shell, a cylinder is fixed to the inner wall of the exhaust duct, The end of the cylinder away from the inner wall of the exhaust pipe is open, the inner wall piston of the cylinder is connected to a moving disk, a connecting spring is fixed to the side of the moving disk away from the center of the exhaust pipe, the end of the connecting spring away from the moving disk is fixed to the inner wall of the cylinder, a push rod is fixed to the side of the moving disk close to the connecting spring, the push rod penetrates the cylinder and is slidably connected to the cylinder, the push rod extends into the vertical groove, an L-shaped clamping rod is fixed to the bottom of the push rod, a clamping groove is provided on the side of the slider away from the spring, and the L-shaped clamping rod is in a clamping state in the initial state In the card slot, the slider is limited. After the movable frame and the filter plate are installed, the center position of the movable frame contacts the spring sheet. Since the slider cannot move at this time, and the spring sheet is initially concave, the movable frame contacts the spring sheet, causing the spring sheet to deform and gradually tend to be flat. When used for a long time, the filter plate is blocked. At this time, the smoke entering the exhaust duct cannot be discharged through the corresponding exhaust duct. The pressure in the exhaust duct gradually increases. Under the influence of the pressure, the movable plate in the cylinder is pushed to the side away from the center of the exhaust duct. The movable plate drives the push rod and the L-shaped clamping rod to move together, and the L-shaped clamping rod withdraws from the card slot. The slider is no longer limited at this time, so that the spring sheet is no longer restricted. Under the action of its own elasticity, since the spring sheet cannot push the filter plate and the movable frame, the spring sheet can only push the slider upward, and the slider moves upward with the push rod, and the push rod contacts the pull rope. The pull rope is used to pull the guide plate to adjust the angle, thereby realizing the switching of the exhaust duct. When replacing the filter plate, there is no need to stop working, and there is no need for regular inspection by the staff, which is convenient to use.

[0011] Preferably, a locking assembly is provided on the bottom of the spring sheet, the movable frame, the fixed ring and the threaded ring, and the locking assembly includes a resistance block, the resistance block is fixed to the bottom of the spring sheet, an embedding groove is provided on the top of the movable frame, the inner side of the embedding groove is penetrated by the resistance rod and is slidably connected with the resistance rod, a tension spring is fixed on the surface of the resistance rod, and one end of the tension spring away from the resistance rod is fixed on the inner wall of the movable frame, the top of the movable frame and the fixed ring are penetrated by the positioning rod and are slidably connected with the positioning rod The bottom of the threaded ring is provided with an annular groove, and the inner side of the annular groove is provided with an annular limiting tooth. When the movable frame abuts against the spring sheet, making the spring sheet tend to be straight, the abutment block fixed at the bottom of the spring sheet is inserted into the embedding groove and abuts against the abutment rod, pushing the abutment rod to move toward the side close to the positioning rod, and the abutment rod pushes the positioning rod to move upward, and the positioning rod is stuck on the annular limiting tooth, so as to limit the threaded ring and avoid accidentally touching the threaded ring during use, thereby causing the movable frame to loosen.

[0012] Compared with the prior art, the present invention provides a flue gas treatment device for a diesel generator set, which has the following beneficial effects:

[0013] 1. The flue gas treatment device for the diesel generator set is provided with a filtering mechanism, a switching mechanism and a driven component. When used for a long time, the filter plate becomes clogged. At this time, the flue gas entering the exhaust duct cannot be discharged through the corresponding exhaust duct. The pressure in the exhaust duct gradually increases. Under the influence of the pressure, the movable plate in the cylinder is pushed to the side away from the center of the exhaust duct, and the L-shaped clamping rod is controlled to release the limit on the slider. Under the action of its own elasticity, the spring piece pushes the slider upward, and the slider moves upward with the push rod. The push rod contacts the pull rope, and the guide plate is pulled by the pull rope to adjust the angle, thereby realizing the switching of the exhaust duct. When replacing the filter plate, there is no need to stop working, and there is no need for staff to check regularly, which is convenient to use.

[0014] 2. The flue gas treatment device for the diesel generator set controls the angle of the guide plate through the switching mechanism and the driven component, thereby guiding the flue gas entering the shell so that it can enter two different exhaust ducts. The pointer is set to facilitate the staff to directly judge the current angle of the guide plate, thereby achieving more convenient replacement of the filter plate.

[0015] 3. The flue gas treatment device for the diesel generator set has a filtering mechanism and a locking assembly. When the movable frame abuts against the spring sheet, causing the spring sheet to tend to be straight, the abutment block fixed at the bottom of the spring sheet is inserted into the embedding groove and abuts against the abutment rod, pushing the abutment rod to move to the side close to the positioning rod. The abutment rod pushes the positioning rod to move upward, and the positioning rod is stuck on the annular limiting tooth to limit the threaded ring, thereby avoiding accidental touching of the threaded ring during use, thereby causing the movable frame to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the present invention;

[0017] Figure 2 It is a schematic diagram of the cross-sectional front view structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the switching mechanism of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the filtering mechanism of the present invention;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the connection between the movable frame and the locking assembly of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the threaded ring of the present invention when viewed from above;

[0022] Figure 7 It is a schematic diagram of the structure of the driven component of the present invention;

[0023] Figure 8 It is a schematic diagram of a partial cross-sectional structure of the connection between the slider, the spring piece and the cylinder of the present invention;

[0024] Fig. 9 It is a schematic diagram of the vertical groove structure on the inner wall of the exhaust duct of the present invention.

[0025] In the figure: 1. shell; 2. filtering mechanism; 21. moving frame; 22. filtering plate; 23. fixing ring; 24. threaded ring; 25. connecting thread; 26. rubber ring; 3. switching mechanism; 31. rotating shaft; 32. guide plate; 33. pointer; 34. rubber pad; 4. driven assembly; 41. slider; 42. spring; 43. vertical groove; 44. return spring; 45. push rod; 46. pull rope; 47. cylinder; 48. moving disk; 49. connecting spring; 410. push rod; 411. L-shaped clamping rod; 412. clamping groove; 5. locking assembly; 51. resistance block; 52. embedding groove; 53. resistance rod; 54. tension spring; 55. clamping rod; 56. annular groove; 57. annular limiting tooth; 6. air inlet; 7. exhaust pipe; 8. moving groove. DETAILED DESCRIPTION

[0026] like Figure 1-Figure 9As shown, the present invention provides a technical solution: a flue gas treatment device for a diesel generator set, comprising a shell 1, one end of the shell 1 is provided with an air inlet 6, the other end of the shell 1 is provided with two groups of exhaust pipes 7, the two groups of exhaust pipes 7 and the shell 1 are in a Y shape, a filter mechanism 2 for filtering the flue gas is provided on the exhaust pipe 7, a switching mechanism 3 for switching the direction of the flue gas is provided inside and on the surface of the shell 1, a driven component 4 for controlling the switching mechanism 3 is provided inside the shell 1 and the exhaust pipe 7, two groups of the filter mechanism 2 and the driven component 4 are provided, and the two groups of the filter mechanism 2 and the driven component 4 are provided on the two groups of exhaust pipes 7.

[0027] The filter mechanism 2 includes a movable frame 21, which is plugged into the exhaust pipe 7. A filter plate 22 is clamped on the top of the movable frame 21. A fixing ring 23 is fixed on the surface of the movable frame 21. A threaded ring 24 is rotatably installed on the top of the fixing ring 23. A connecting thread 25 is provided on the surface of the exhaust pipe 7. A rubber ring 26 is fixed on the inner wall of the exhaust pipe 7. The filter plate 22 is placed on the top of the movable frame 21 and clamped with the movable frame 21. The movable frame 21 is inserted from the bottom of the exhaust pipe 7. The threaded ring 24 is rotated to connect the threaded ring 24 with the connecting thread 25 on the surface of the exhaust pipe 7, thereby completing the installation of the filter mechanism 2. After the installation is completed, the filter plate 22 on the top of the movable frame 21 contacts the rubber ring 26 on the inner wall of the exhaust pipe 7 to ensure sealing.

[0028] A moving groove 8 is provided on the side of the exhaust duct 7 , and the moving frame 21 can be moved through the moving groove 8 so that the moving frame 21 is connected to the exhaust duct 7 .

[0029] The switching mechanism 3 includes a rotating shaft 31, which passes through the shell 1 and is rotatably connected to the shell 1. A sealed bearing is provided at the position where the rotating shaft 31 is connected to the shell 1. A guide plate 32 is fixed to the surface of the rotating shaft 31, and a rubber pad 34 is provided on the surface of the guide plate 32. A pointer 33 is fixed to the end of the rotating shaft 31 extending outside the shell 1. The rubber pad 34 on the surface of the guide plate 32 contacts the inner wall of the shell 1 to ensure that the guide plate 32 can separate the space inside the shell 1. By controlling the angle of the guide plate 32, the smoke entering the shell 1 can be guided so that it can enter two different exhaust ducts 7. The pointer 33 is provided to facilitate the staff to directly judge the current angle of the guide plate 32, thereby achieving more convenient replacement of the filter plate 22.

[0030] The driven component 4 includes a vertical groove 43, which is opened on the inner wall of the exhaust pipe 7. A slider 41 is slidably connected to the inner side of the vertical groove 43. Two groups of sliders 41 are provided. A spring 42 is fixed between the two groups of sliders 41. A return spring 44 is fixed to the bottom of the slider 41. The end of the return spring 44 away from the slider 41 is fixed to the inner side of the vertical groove 43. A push rod 45 is fixed to the top of the slider 41. A pull rope 46 is fixed to the side of the guide plate 32. The end of the pull rope 46 away from the guide plate 32 is fixed to the inner wall of the shell 1. A cylinder 47 is fixed to the inner wall of the exhaust pipe 7. The end of the cylinder 47 away from the inner wall of the exhaust pipe 7 is open. The inner wall piston of the cylinder 47 is connected to a movable disk 48, a connecting spring 49 is fixed to the side of the movable disk 48 away from the center of the exhaust pipe 7, and one end of the connecting spring 49 away from the movable disk 48 is fixed to the inner wall of the cylinder 47, and a push rod 410 is fixed to the side of the movable disk 48 close to the connecting spring 49, and the push rod 410 passes through the cylinder 47 and is slidably connected to the cylinder 47, and the push rod 410 extends into the vertical groove 43, and an L-shaped clamping rod 411 is fixed to the bottom of the push rod 410, and a clamping groove 412 is provided on the side of the slider 41 away from the spring 42. The L-shaped clamping rod 411 is initially clamped in the clamping groove 412, and the slider 41 is moved. In the limited state, after the movable frame 21 and the filter plate 22 are installed, the center position of the movable frame 21 abuts on the spring plate 42. Since the slider 41 cannot move at this time, and the spring plate 42 is initially concave, the movable frame 21 abuts on the spring plate 42, causing the spring plate 42 to deform, and the spring plate 42 gradually tends to be straight. When used for a long time, the filter plate 22 is blocked. At this time, the smoke entering the exhaust pipe 7 cannot be discharged through the corresponding exhaust pipe 7. The pressure in the exhaust pipe 7 gradually increases. Under the influence of the pressure, the movable plate 48 in the cylinder 47 is pushed to the side away from the center of the exhaust pipe 7, and the movable plate 48 carries The push rod 410 and the L-shaped clamping rod 411 move together, and the L-shaped clamping rod 411 withdraws from the clamping groove 412. The slider 41 is no longer limited at this time, so that the spring piece 42 is no longer restricted. Under the action of its own elasticity, the spring piece 42 cannot push the filter plate 22 and the movable frame 21, and the spring piece 42 can only push the slider 41 to move upward. The slider 41 moves upward with the push rod 45, and the push rod 45 contacts the pull rope 46. The pull rope 46 is used to pull the guide plate 32 to adjust the angle, thereby realizing the switching of the exhaust duct 7. When replacing the filter plate 22, there is no need to stop work, and there is no need for staff to check regularly, which is convenient to use.

[0031] The bottom of the spring sheet 42, the mobile frame 21, the fixed ring 23 and the threaded ring 24 are provided with a locking assembly 5, which includes a resisting block 51, which is fixed to the bottom of the spring sheet 42, and an embedding groove 52 is provided on the top of the mobile frame 21. The inner side of the embedding groove 52 is penetrated by a resisting rod 53 and is slidably connected to the resisting rod 53. A tension spring 54 is fixed on the surface of the resisting rod 53, and one end of the tension spring 54 away from the resisting rod 53 is fixed to the inner wall of the mobile frame 21. The top of the mobile frame 21 and the fixed ring 23 are penetrated by a positioning rod 55 and are slidably connected to the positioning rod 55. The threaded ring An annular groove 56 is provided at the bottom of 24, and an annular limiting tooth 57 is provided on the inner side of the annular groove 56. When the movable frame 21 abuts against the spring sheet 42, making the spring sheet 42 tend to be straight, the abutment block 51 fixed at the bottom of the spring sheet 42 is inserted into the embedding groove 52 and abuts against the abutment rod 53, pushing the abutment rod 53 to move to the side close to the locking rod 55, and the abutment rod 53 pushes the locking rod 55 to move upward, and the locking rod 55 is locked on the annular limiting tooth 57, so as to limit the threaded ring 24 and avoid accidentally touching the threaded ring 24 during use, thereby causing the movable frame 21 to loosen.

[0032] Based on the above embodiment, the air inlet 6 of the device is connected to the exhaust port of the diesel generator set. The smoke generated when the diesel generator is working enters the shell 1 and the exhaust pipe 7 through the air inlet 6, and the smoke is filtered and discharged through the filter plate 22.

[0033] With long-term use, too many impurities are filtered on the filter plate 22, causing the filter plate 22 to be blocked, and the smoke continues to enter the shell 1 and the exhaust duct 7. At this time, the smoke entering the exhaust duct 7 cannot be discharged through the corresponding exhaust duct 7, and the pressure in the exhaust duct 7 gradually increases. Under the influence of the pressure, the movable plate 48 in the cylinder 47 is pushed to move to the side away from the center of the exhaust duct 7, and the movable plate 48 drives the push rod 410 and the L-shaped clamping rod 411 to move together. The L-shaped clamping rod 411 withdraws from the clamping groove 412, and the slider 41 is no longer limited at this time, so that the spring piece 42 is no longer restricted. Under the action of its own elasticity, the spring piece 42 cannot push the filter plate 22 and the movable frame 21, and the spring piece 42 can only push the slider 41 to move upward, and the slider 41 moves upward with the push rod 45, and the push rod 45 contacts the pull rope 46. The pull rope 46 is used to pull the guide plate 32 to adjust the angle, thereby realizing the switching of the exhaust duct 7. When replacing the filter plate 22, there is no need to stop working, and there is no need for regular inspection by the staff, which is convenient to use.

[0034] At this time, the spring piece 42 in the corresponding blocked exhaust duct 7 recovers its bent state, the resistance block 51 is pushed out from the embedding groove 52, and the resistance block 51 no longer resists the resistance rod 53. Under the action of the tension spring 54, the resistance rod 53 is reset, and the resistance rod 53 no longer squeezes the blocking rod 55. The blocking rod 55 falls under the action of its own gravity, and the blocking rod 55 is no longer stuck in the annular limiting tooth 57, so that the limit on the threaded ring 24 is released. The staff only needs to rotate the threaded ring 24 so that the threaded ring 24 is no longer connected to the connecting thread 25, and pull the fixed ring 23 and the movable frame 21 downward.

[0035] After the movable rack 21 is taken out, the pressure in the exhaust duct 7 is in a normal state. Under the action of the connecting spring 49, the movable plate 48 is reset with the push rod 410 and the L-shaped clamping rod 411. At the same time, under the action of the reset spring 44, the slider 41 is reset downward with the spring 42 and the push rod 45. The slider 41 first contacts the L-shaped clamping rod 411, pushing the L-shaped clamping rod 411 to move to the side away from the slider 41. When the slot 412 on the slider 41 moves to the position of the L-shaped clamping rod 411, the L-shaped clamping rod 411 is inserted into the slot 412 to limit the slider 41.

[0036] Replace the filter plate 22 on the top of the mobile frame 21. After the replacement is completed, the mobile frame 21 only needs to be put in from the bottom of the exhaust pipe 7, and the threaded ring 24 is rotated to connect the threaded ring 24 with the connecting thread 25 on the surface of the exhaust pipe 7, thereby completing the installation of the filter mechanism 2. After the installation is completed, the filter plate 22 on the top of the mobile frame 21 is in contact with the rubber ring 26 on the inner wall of the exhaust pipe 7 to ensure sealing. During this process, the mobile frame 21 is in contact with the spring sheet 42. Since the slider 41 cannot move at this time, and the spring sheet 42 is initially concave, the mobile frame 21 is in contact with the rubber ring 26 on the inner wall of the exhaust pipe 7. The spring sheet 42 contacts the spring sheet 42, causing the spring sheet 42 to deform, and the spring sheet 42 gradually tends to be straight. When the spring sheet 42 tends to be straight, the resistance block 51 fixed at the bottom of the spring sheet 42 is inserted into the embedding groove 52 and contacts the resistance rod 53, pushing the resistance rod 53 to move to the side close to the locking rod 55, and the resistance rod 53 pushes the locking rod 55 to move upward, and the locking rod 55 is stuck on the annular limiting tooth 57, so as to limit the threaded ring 24, avoid accidentally touching the threaded ring 24 during use, thereby causing the movable frame 21 to loosen, and complete the installation.

[0037] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A flue gas treatment device for a diesel generator set, comprising a housing (1), one end of the housing (1) being provided with an air inlet (6), characterized in that: Two groups of exhaust pipes (7) are arranged at the other end of the shell (1), the two groups of exhaust pipes (7) and the shell (1) are in a Y shape, the exhaust pipes (7) are provided with a filter mechanism (2) for filtering smoke, the interior and surface of the shell (1) are provided with a switching mechanism (3) for switching the direction of smoke flow, the interior of the shell (1) and the exhaust pipe (7) are provided with a driven component (4) for controlling the switching mechanism (3), the filter mechanism (2) and the driven component (4) are each provided in two groups, and the two groups of the filter mechanism (2) and the driven component (4) are provided on the two groups of exhaust pipes (7); The switching mechanism (3) comprises a rotating shaft (31), the rotating shaft (31) passes through the housing (1) and is rotatably connected to the housing (1), a sealed bearing is provided at a position where the rotating shaft (31) is connected to the housing (1), a guide plate (32) is fixed to the surface of the rotating shaft (31), a rubber pad (34) is provided on the surface of the guide plate (32), and a pointer (33) is fixed to one end of the rotating shaft (31) extending outside the housing (1); The driven component (4) comprises a vertical groove (43), wherein the vertical groove (43) is formed on the inner wall of the exhaust pipe (7), a slider (41) is slidably connected to the inner side of the vertical groove (43), two groups of the sliders (41) are provided, a spring sheet (42) is fixed between the two groups of the sliders (41), a return spring (44) is fixed to the bottom of the slider (41), an end of the return spring (44) away from the slider (41) is fixed to the inner side of the vertical groove (43), a top rod (45) is fixed to the top of the slider (41), a pull rope (46) is fixed to the side of the guide plate (32), and an end of the pull rope (46) away from the guide plate (32) is fixed to the inner wall of the housing (1); A cylinder (47) is fixed to the inner wall of the exhaust pipe (7); one end of the cylinder (47) away from the inner wall of the exhaust pipe (7) is open; a movable disk (48) is connected to the inner wall piston of the cylinder (47); a connecting spring (49) is fixed to the side of the movable disk (48) away from the center of the exhaust pipe (7); one end of the connecting spring (49) away from the movable disk (48) is fixed to the inner wall of the cylinder (47); a push rod (410) is fixed to the side of the movable disk (48) close to the connecting spring (49); the push rod (410) passes through the cylinder (47) and is slidably connected to the cylinder (47); the push rod (410) extends into the vertical groove (43); an L-shaped clamping rod (411) is fixed to the bottom of the push rod (410); and a clamping groove (412) is provided on the side of the slider (41) away from the spring (42).

2. A flue gas treatment device for a diesel generator set according to claim 1, characterized in that: The filtering mechanism (2) comprises a movable frame (21), the movable frame (21) being plugged into the exhaust pipe (7), a filter plate (22) being clamped on the top of the movable frame (21), a fixing ring (23) being fixed on the surface of the movable frame (21), a threaded ring (24) being rotatably mounted on the top of the fixing ring (23), a connecting thread (25) being provided on the surface of the exhaust pipe (7), and a rubber ring (26) being fixed on the inner wall of the exhaust pipe (7).

3. A flue gas treatment device for a diesel generator set according to claim 1, characterized in that: A movable groove (8) is provided on the side of the exhaust pipe (7).

4. A flue gas treatment device for a diesel generator set according to claim 1, characterized in that: A locking assembly (5) is arranged on the bottom of the spring sheet (42), the movable frame (21), the fixed ring (23) and the threaded ring (24). The locking assembly (5) comprises a resisting block (51) fixed to the bottom of the spring sheet (42). An embedding groove (52) is provided on the top of the movable frame (21). The inner side of the embedding groove (52) is penetrated by a resisting rod (53) and is slidably connected to the resisting rod (53). A tension spring (54) is fixed on the surface of the resisting rod (53). One end of the tension spring (54) away from the resisting rod (53) is fixed to the inner wall of the movable frame (21).

5. A flue gas treatment device for a diesel generator set according to claim 4, characterized in that: The top of the movable frame (21) and the fixed ring (23) are penetrated by a locking rod (55) and are slidably connected to the locking rod (55); an annular groove (56) is provided at the bottom of the threaded ring (24); and an annular limiting tooth (57) is provided inside the annular groove (56).

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