A diesel generator set exhaust smoke camouflage device

Abstract

The application provides a diesel generating set tail gas smoke elimination camouflage device, and belongs to the technical field of engine tail gas treatment. The device comprises an air inlet box body and an exhaust box body. An air inlet is formed in the air inlet box body, and an exhaust port is arranged on the exhaust box body. A maintenance assembly is arranged in the exhaust box body. The device further comprises an airflow buffering assembly, a flow equalizing assembly and a vibration assembly. The airflow buffering assembly, the flow equalizing assembly and the vibration assembly are arranged between a bypass pipe and the air inlet box body. The airflow buffering assembly and the flow equalizing assembly are used for reducing the airflow impact on the filter element, and the vibration assembly is used for preventing excessive impurities from accumulating on the outer surface of the filter element. In the application, the air holes on the multiple flow equalizing assemblies are arranged in sequence from small to large along the airflow flow direction, so that part of the airflow can continue to flow backward after passing through the front windshield, thereby making the filter element mechanisms at different positions in the filter box more evenly affected by the wind, reducing the dust penetration problem caused by the excessively high local pressure of the proximal filter element mechanism, and improving the overall filtering effect.

Description

Technical Field

[0001] This invention relates to the field of engine exhaust gas treatment technology, and more specifically, to a diesel generator set exhaust gas smoke elimination and camouflage device. Background Technology

[0002] During the initial startup phase or under sudden load changes, the fuel combustion state of diesel generator sets is not stable enough, and the exhaust gas is prone to carrying a high concentration of carbon soot particles and incompletely burned particulate matter. Existing diesel generator set exhaust smoke elimination devices typically use filter elements to intercept and filter particulate matter in the exhaust gas. After the exhaust gas enters the filter box, it flows directly to the filter element mechanism, where the filter layer on the surface of the filter element traps dust and black smoke particles, thereby reducing black smoke emissions, minimizing the visible emission characteristics caused by the escape of exhaust gas, and reducing the possibility of the equipment's location being externally observed and identified.

[0003] However, in actual use, exhaust gas entering the filter box often preferentially impacts the filter element area near the intake end, especially when the diesel generator set is first started and emits the first plume of high-concentration black smoke. At this time, the instantaneous airflow velocity is high and the particle concentration is large, making the filter element near the intake end susceptible to significant local airflow pressure. After being subjected to concentrated impact in a short period, the local pressure difference on the filter element surface increases, allowing fine particles to easily penetrate the filter element pores with the high-speed airflow, leading to increased dust penetration and affecting the filtration effect of the smoke suppression device.

[0004] How to invent a diesel generator exhaust smoke camouflage device to improve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] To overcome the above deficiencies, the present invention provides a diesel generator exhaust smoke camouflage device, which aims to improve the problems mentioned in the background.

[0006] This invention is implemented as follows:

[0007] This invention provides a diesel generator set exhaust smoke camouflage device, comprising an intake box and an exhaust box. The intake box has an air inlet, and the exhaust box has an exhaust outlet. An air guide pipe is connected to the exhaust outlet, and a cooling component is installed at the end of the air guide pipe. A maintenance component is installed inside the exhaust box, and a bypass pipe is connected to the exhaust box. An exhaust pipe is fixedly connected to the side wall of the exhaust box. The device also includes:

[0008] The filter element includes an airflow buffer assembly, an airflow equalization assembly, and a vibration assembly. All three assemblies are disposed between the bypass pipe and the air intake housing. The airflow buffer assembly and the airflow equalization assembly are used to reduce the airflow impact on the filter element, and the vibration assembly is used to prevent excessive impurities from accumulating on the outer surface of the filter element.

[0009] Preferably, the maintenance component includes a handle disposed on the exhaust box, the handle being fixedly connected to a cover plate shaft that penetrates the side wall of the exhaust box, the cover plate shaft being rotatably connected to a bracket on the exhaust box, a maintenance cover plate being fixedly connected to the circumferential side wall of the cover plate shaft, and a limit mechanism being fixedly connected to the outer side wall of the exhaust box.

[0010] Preferably, the airflow buffer assembly includes a buffer box connected to a bypass pipe, and a plurality of staggered air guide plates are fixedly connected to the inner side wall of the buffer box. The air guide plates are arranged perpendicular to the axis of the bypass pipe, and the cross-sectional area of ​​the buffer box is larger than that of the bypass pipe.

[0011] Preferably, a connecting flange is provided between the bypass pipe and the exhaust box, a first power unit is fixedly connected to the connecting flange, a differential pressure sensor is fixedly connected to the bypass pipe, a drive shaft is provided at the output end of the first power unit, and a sealing disc is fixedly connected to the drive shaft at the position inside the bypass pipe.

[0012] Preferably, the airflow buffer assembly includes a lower filter box and an upper filter box fixedly connected between the intake box and the exhaust box. The ends of the upper filter box and the lower filter box are connected to the intake box. The ends of the upper filter box and the lower filter box near the exhaust box 2 are sealed. An intake disc mechanism is provided between the upper filter box and the intake box. Multiple filter element mechanisms are fixedly connected to the upper filter box and the lower filter box by clamps.

[0013] Preferably, the flow equalization component includes a filter element support sleeved on the filter element mechanism, an axial connecting frame on the filter element support slidingly contacting the filter element skeleton on the filter element mechanism, a wind baffle and a connecting plate fixedly connected to the connecting frame on the filter element support, a plurality of air holes being provided on the wind baffle, the wind baffle blocking the windward side of the filter element mechanism, the bottom of the wind baffle extending from the windward side to the leeward side of the filter element mechanism, and a shielding part being provided at the bottom of the wind baffle.

[0014] Preferably, the two ends of the filter element support are respectively fixed to the two opposite side walls of the upper filter box, the filter element mechanism is installed on the inner side of the filter element support, the exhaust pipe is connected to the space where the filter element support is located, and exhaust pipes are fixedly connected to the corresponding positions of the upper filter box and the lower filter box, and the exhaust pipes are connected to the exhaust box body.

[0015] Preferably, both the upper and lower filter boxes are provided with multiple flow equalization components along the airflow direction, and the air holes on the multiple flow equalization components are arranged from small to large along the airflow direction.

[0016] Preferably, the vibration assembly includes a first connecting rod fixedly connected to the end of the drive shaft, a second connecting rod movably connected to the end of the first connecting rod, the second connecting rod being rotatably connected to a support frame on the exhaust pipe, a connecting rod movably connected to the end of the second connecting rod, multiple first supports and a second support fixedly and vertically connected to the first supports provided inside the upper filter box, the connecting rod being slidably connected to the first supports, the second support being located between two adjacent connecting plates, multiple connecting seats being axially fixedly connected to the connecting rod, a lever being movably connected to the connecting seat, a sleeve being rotatably connected to the second support, the end of the lever being fixedly connected to the outer wall of the sleeve, a spring being fixedly connected to the outer wall of the sleeve, a ball being fixedly connected to the end of the spring, a stop bar being fixedly connected to the second support, the position of the stop bar corresponding to the position of the ball, the first connecting rod and the second connecting rod being located outside the housing where the filter element mechanism is located, and the connecting rod penetrating the side wall of the housing.

[0017] Preferably, the cooling component includes a duct fixedly connected to the air duct, the end of the air duct penetrating the side wall of the duct, the air outlet at the end of the air duct located inside the duct being concentric with the duct and having the same length direction, both the air duct and the duct being made of metal and both having a heat insulation layer on their inner sidewalls, a load-bearing frame being provided at the bottom of the duct, a fan being fixedly connected inside the duct, and circumferentially inclined guide plates being fixedly connected to the inner sidewall of the duct, the fan and the guide plates being located on both sides of the air outlet.

[0018] The beneficial effects of this invention are:

[0019] 1. This invention provides a baffle plate on the windward side of the filter element mechanism, with air holes on the baffle plate. This allows the exhaust gas entering the filter box to be blocked and diverted by the baffle plate before directly impacting the filter element mechanism, reducing the instantaneous airflow impact on the filter element mechanism near the air intake box. At the same time, the air holes on multiple flow equalization components are arranged sequentially from small to large along the airflow direction, allowing some airflow to pass over the front baffle plate and continue to flow backward. This makes the airflow more uniform for the filter element mechanism at different positions in the filter box, reducing dust penetration problems caused by excessive local pressure in the near-end filter element mechanism and improving the overall filtration effect.

[0020] 2. This invention, by setting up a buffer box with a large volume and forming a start-up buffer passage between the intake box, buffer box, bypass pipe and exhaust box, allows the first high-concentration flue gas discharged during the initial start-up of the diesel generator set to preferentially enter the buffer box. When the differential pressure sensor detects the airflow pressure difference in the bypass pipe, the sealing disc closes, allowing the flue gas to temporarily remain in the buffer box during the initial start-up. In conjunction with multiple air guide plates, the airflow is redirected and retained, reducing the intensity of the flue gas directly impacting the filter element mechanism during start-up, reducing the penetration rate of fine dust, and improving the filtration stability of the smoke elimination device under start-up conditions.

[0021] 3. This invention utilizes a drive shaft and a vibration assembly for transmission, enabling the sealing disc to synchronously drive the first connecting rod, second connecting rod, connecting rod, lever, spring, and ball during opening and closing. The ball then strikes the connecting plate, transmitting the vibration to the filter element's frame and filter layer. This generates vibration in the filter element mechanism during both start-up and shutdown of the diesel generator set, shaking off some impurities adhering to the filter element's surface, slowing the thickening of the filter layer, and extending the interval between maintenance cycles.

[0022] 4. By setting up a cooling component, the exhaust gas discharged through the exhaust box is enveloped by the ambient air at the outlet and mixed in a swirling flow under the action of the guide plate, thereby improving the heat exchange efficiency between the high-temperature exhaust gas and the ambient air and reducing the local high temperature phenomenon caused by the concentrated exhaust gas discharge. At the same time, the heat insulation layer can reduce the heat transfer to the guide pipe and the outer wall of the duct, reduce the surface temperature rise of the surrounding structures at the exhaust end, weaken the local thermal characteristics of the exhaust gas emission area, and enhance the camouflage effect of the device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of a diesel generator set exhaust smoke camouflage device provided by an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the airflow buffer assembly structure of a diesel generator set exhaust smoke elimination and camouflage device provided by an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the exhaust box of a diesel generator set exhaust smoke elimination and camouflage device provided by an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the buffer box of a diesel generator set exhaust smoke elimination and camouflage device provided in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the opening state of the sealing disc of a diesel generator set exhaust smoke elimination camouflage device provided by an embodiment of the present invention;

[0029] Figure 6This is a schematic diagram of the air hole distribution of a diesel generator set exhaust smoke suppression camouflage device provided by an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the wind deflector structure of a diesel generator set exhaust smoke elimination camouflage device provided by an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the vibration component structure of a diesel generator set exhaust smoke suppression camouflage device provided by an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the position of the stop bar of a diesel generator set exhaust smoke elimination camouflage device provided by an embodiment of the present invention;

[0033] Figure 10 yes Figure 7 Enlarged view of point A in the middle;

[0034] Figure 11 This is a schematic diagram of a diesel generator set exhaust smoke elimination and camouflage device provided by an embodiment of the present invention, which includes a cooling component.

[0035] In the diagram: 1. Inlet housing; 2. Exhaust housing; 3. Handle; 4. Bypass pipe; 5. Buffer housing; 6. Lower filter housing; 7. Upper filter housing; 8. Exhaust pipe; 11. Inlet; 21. Exhaust port; 22. Air guide pipe; 23. Air duct; 24. Air outlet; 25. Support frame; 26. Fan; 27. Guide plate; 31. Cover plate shaft; 32. Maintenance cover plate; 33. Limiting mechanism; 41. Connecting flange; 42. First power unit; 43. Differential pressure 44. Sensor; 45. Sealing disc; 51. Drive shaft; 62. Air guide plate; 73. Intake disc mechanism; 84. Filter element mechanism; 75. Filter element bracket; 86. Baffle plate; 77. Air hole; 88. Connecting plate; 89. Shielding part; 80. First connecting rod; 81. Second connecting rod; 82. Connecting rod; 83. First bracket; 84. Second bracket; 85. Connecting seat; 86. Sleeve rod; 87. Toggle lever; 98. Spring; 99. Ball; 90. Stop lever. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0037] Example, refer to Figures 1-4A diesel generator set exhaust smoke camouflage device includes an intake box 1 and an exhaust box 2. The intake box 1 has an intake port 11 connected to the exhaust end of an external generator. The exhaust box 2 has an exhaust port 21 connected to an air guide pipe 22. A cooling component is provided at the end of the air guide pipe 22. A maintenance component is provided inside the exhaust box 2. A bypass pipe 4 is connected to the exhaust box 2. An exhaust pipe 8 is fixedly connected to the side wall of the exhaust box 2. The device also includes an airflow buffer component, a flow equalization component, and a vibration component. The airflow buffer component, flow equalization component, and vibration component are all disposed between the bypass pipe 4 and the intake box 1. The airflow buffer component and flow equalization component are used to reduce the airflow impact on the filter element, and the vibration component is used to prevent excessive impurities from accumulating on the outer surface of the filter element.

[0038] The maintenance component includes a handle 3 mounted on the exhaust box 2. The handle 3 is fixedly connected to a cover shaft 31 that passes through the side wall of the exhaust box 2. The cover shaft 31 is rotatably connected to a bracket on the exhaust box 2. A maintenance cover 32 is fixedly connected to the circumferential side wall of the cover shaft 31. A limit mechanism 33 is fixedly connected to the outer side wall of the exhaust box 2. The limit mechanism 33 is used to prevent the cover shaft 31 from rotating arbitrarily during maintenance.

[0039] The airflow buffer assembly includes a buffer housing 5 connected to the bypass pipe 4. Multiple staggered air guide plates 51 are fixedly connected to the inner wall of the buffer housing 5. The air guide plates 51 are perpendicular to the axis of the bypass pipe 4, and the cross-sectional area of ​​the buffer housing 5 is larger than that of the bypass pipe 4. The larger the cross-sectional area of ​​the buffer housing 5, the more airflow it can accommodate. The staggered arrangement of the multiple air guide plates 51 causes the airflow entering the buffer housing 5 to flow in a serpentine pattern, fully utilizing the large area of ​​the buffer housing 5 and extending the time the airflow spends entering the bypass pipe 4.

[0040] Reference Figures 3-5 A connecting flange 41 is provided between the bypass pipe 4 and the exhaust box 2. A first power unit 42 is fixedly connected to the connecting flange 41. A differential pressure sensor 43 is fixedly connected to the bypass pipe 4. The upstream pressure tap of the differential pressure sensor 43 is connected to the bypass pipe 4 through a thin tube to collect the pressure inside the bypass pipe 4. The downstream pressure tap of the differential pressure sensor 43 is located in the surrounding air and is windproof. A drive shaft 45 is provided at the output end of the first power unit 42. A sealing disc 44 is fixedly connected to the drive shaft 45 inside the bypass pipe 4.

[0041] It should be noted that the sealing disc 44 is normally open when the diesel generator set is not working. When the airflow discharged from the diesel generator set enters the intake box 1, the airflow preferentially flows along the connecting passage formed between the intake box 1, the buffer box 5, the bypass pipe 4, and the exhaust box 2, since this connecting passage is not blocked by the sealing disc 44. When the differential pressure sensor 43 detects the pressure difference generated in the bypass pipe 4 due to the airflow, the first power unit 42 drives the drive shaft 45 to rotate, causing the sealing disc 44 to switch from the open state to the closed state. Combined with the large volume space of the buffer box 5 and the reversing effect of multiple air guide plates 51 on the airflow, the high-concentration flue gas discharged at the beginning of the diesel generator set startup is retained in the buffer space formed by the buffer box 5 and the bypass pipe 4, thereby preventing the high-concentration flue gas from directly impacting the filter element or being quickly discharged at the beginning of startup.

[0042] Reference Figures 6-8 The airflow buffer assembly includes a lower filter box 6 and an upper filter box 7 fixedly connected between the intake box 1 and the exhaust box 2. The ends of the upper filter box 7 and the lower filter box 6 are connected to the intake box 1. The ends of the upper filter box 7 and the lower filter box 6 near the exhaust box 2 are sealed. An intake disc mechanism 61 is provided between the upper filter box 7 and the lower filter box 6 and the intake box 1. Multiple filter element mechanisms 62 are fixedly connected to the upper filter box 7 and the lower filter box 6 by clamps.

[0043] The flow equalization assembly includes a filter element bracket 71 sleeved on the filter element mechanism 62. The axial connecting frame on the filter element bracket 71 is in sliding contact with the filter element skeleton on the filter element mechanism 62. The connecting frame on the filter element bracket 71 is fixedly connected to a baffle plate 72 and a connecting plate 74. The baffle plate 72 has multiple air holes 73. The baffle plate 72 blocks the windward side of the filter element mechanism 62. The bottom of the baffle plate 72 extends from the windward side to the leeward side of the filter element mechanism 62. The bottom of the baffle plate 72 is provided with a shielding part 75, which is used to prevent the filter material on the upper filter element mechanism 62 from falling onto the lower filter element mechanism 62.

[0044] The filter element support 71 is fixed at both ends to the two opposite side walls of the upper filter box 7. The filter element mechanism 62 is installed inside the filter element support 71. The exhaust pipe 8 is connected to the space where the filter element support 71 is located. The upper filter box 7 and the lower filter box 6 are both fixedly connected to the corresponding positions of the exhaust pipe 8, which is connected to the exhaust box body 2. Both the upper filter box 7 and the lower filter box 6 are provided with multiple flow equalization components along the airflow direction. The air holes 73 on the multiple flow equalization components are arranged from small to large along the airflow direction.

[0045] It should be noted that when exhaust gas from an external diesel generator enters the intake housing 1, it typically impacts the filter element 62 closest to the intake housing 1 first. This causes the filter element 62 at that location to experience higher instantaneous airflow pressure, leading to an increased penetration rate of smaller dust particles onto the filter element 62. By setting the air holes 73 on multiple flow equalization components to increase in size along the airflow direction, the exhaust gas impacts the baffle plate 72 before impacting the filter element 62, and is preferentially diverted through the smaller air holes 73 on the front baffle plate 72, reducing the airflow directly acting on the filter element 62 closest to the intake housing 1. The remaining airflow passes over the front baffle plate 72 and continues to flow backward, entering the corresponding filter element 62 through the subsequent larger air holes 73. This results in a more uniform distribution of airflow pressure within the filter housing along the airflow direction, reducing the pressure load on the near-end filter element 62, lowering the dust penetration rate, and improving the overall filtration effect.

[0046] Reference Figures 8-11 The vibration assembly includes a first connecting rod 81 fixedly connected to the end of the drive shaft 45, a second connecting rod 82 movably connected to the end of the first connecting rod 81, a first bracket 84 and a second bracket 85 for supporting the filter box, the second connecting rod 82 being rotatably connected to the support frame on the exhaust pipe 8, and a connecting rod 83 movably connected to the end of the second connecting rod 82. Multiple first brackets 84 and a second bracket 85 fixedly and vertically connected to the first brackets 84 are provided inside the upper filter box 7. The connecting rod 83 is slidably connected to the first brackets 84. The second bracket 85 is located between two adjacent connecting plates 74. Multiple connecting seats 87 are axially fixedly connected to the connecting rod 83. A lever 89 is movably connected to the connecting seat 87. A sleeve rod 88 is rotatably connected to the second bracket 85. The end of the lever 89 is fixedly connected to the outer wall of the sleeve rod 88. A spring 90 is fixedly connected to the outer wall of the sleeve rod 88. A ball 91 is fixedly connected to the end of the spring 90. A stop rod 92 is fixedly connected to the second bracket 85, and the position of the stop rod 92 corresponds to the position of the ball 91. Both the first connecting rod 81 and the second connecting rod 82 are located on the outside of the housing where the filter element mechanism 62 is located, and the connecting rod 83 passes through the side wall of the housing.

[0047] The cooling component includes a duct 23 fixedly connected to the air duct 22. The air duct 23 is wrapped with an insulation layer. The end of the air duct 22 penetrates the side wall of the air duct 23. The air outlet 24 located at the end of the air duct 22 inside the air duct 23 is concentric with the air duct 23 and has the same length direction. Both the air duct 22 and the air duct 23 are made of metal and both have heat insulation layers on their inner side walls. The heat insulation layers on their inner side walls can reduce the heat transfer of high-temperature exhaust gas and mixed airflow to the pipe wall and reduce the temperature rise of the outer wall of the air duct 22 and the air duct 23. A load-bearing frame 25 is provided at the bottom of the air duct 23. The load-bearing frame 25 is used to support the air duct 23 and its internal components such as the fan 26 and the guide plate 27. The fan 26 is fixedly connected inside the air duct 23. The guide plate 27 arranged in a circular inclined manner is fixedly connected to the inner side wall of the air duct 23. The fan 26 and the guide plate 27 are located on both sides of the air outlet 24.

[0048] It should be noted that when the cooling component is working, the purified exhaust gas discharged through the exhaust box 2 enters the air guide pipe 22 and is discharged from the air outlet 24 at the end of the air guide pipe 22 along the length of the air duct 23. Since the air outlet 24 and the air duct 23 are concentrically arranged and their lengths are aligned, the fan 26, after starting, can pressurize the external ambient air and send it into the air duct 23, causing the ambient air to flow along the outer periphery of the air outlet 24 and its downstream area, forming a relatively low-temperature enveloping airflow on the outside of the exhaust gas discharged from the air outlet 24. This enveloping airflow can envelop the high-temperature exhaust gas in the initial flow section after the exhaust gas is discharged from the air outlet 24, reducing the possibility of the high-temperature exhaust gas directly scouring the outlet of the air duct 23.

[0049] With the above configuration, the cooling components can form a synergistic effect of air supply coverage, swirling guidance, and mixed heat exchange at the exhaust gas outlet, thereby reducing the surface temperature rise of the surrounding structures at the exhaust end, weakening the local thermal characteristics formed by exhaust gas emissions, and enhancing the camouflage effect of the device.

[0050] The working principle of this diesel generator set exhaust smoke suppression device is as follows: During use, one of the two intake disc mechanisms 61 is typically activated, placing one of the upper filter box 7 and the lower filter box 6 in filtration mode. When the filter element mechanism 62 in the working filter box becomes saturated, the intake disc mechanism 61 corresponding to the other filter box is activated, and the intake disc mechanism 61 corresponding to the saturated filter box is closed, allowing the other filter box to continue filtration. At this time, the operator can perform water washing maintenance on the filter element mechanism 62 in the saturated filter box. During normal machine operation, the maintenance cover 32 does not seal the ends of the two exhaust pipes 8. When maintenance is required, the operator rotates the handle 3, which drives the cover shaft 31 to rotate, causing the maintenance cover 32 to cover the end of the exhaust pipe 8 corresponding to the filter box to be maintained, thus reducing the impact of airflow on the maintenance process. The corresponding filter element mechanism 62 is then removed and washed clean. After cleaning, it is reinstalled in the filter box, and the handle 3 is rotated again to release the seal of the maintenance cover 32 on the end of the exhaust pipe 8, completing the maintenance.

[0051] By setting up a buffer box 5 with a large volume, a starting buffer passage is formed between the intake box 1, the buffer box 5, the bypass pipe 4, and the exhaust box 2. When the diesel generator set starts and discharges the first plume of smoke, since the sealing disc 44 is in the normally open state, the starting buffer passage is not blocked, and the smoke preferentially enters the buffer box 5. After the differential pressure sensor 43 detects the pressure difference generated in the bypass pipe 4 due to the airflow, the first power unit 42 drives the drive shaft 45 to rotate, causing the sealing disc 44 to close. This temporarily stores the high-concentration smoke in the initial stage of startup in the buffer box 5, and uses multiple air guide plates 51 to reverse and retain the airflow, alleviating the problem of the smoke directly impacting the filter element mechanism 62 near the intake box 1 at the moment of startup, reducing the dust penetration rate, and improving the filtration effect.

[0052] Each time the diesel generator set is started, the first power unit 42 drives the drive shaft 45 to rotate 90 degrees, switching the sealing disc 44 from the open state to the closed state to seal the bypass pipe 4. As the drive shaft 45 rotates, it synchronously drives the first connecting rod 81 to rotate. The end of the first connecting rod 81 drives the second connecting rod 82 to rotate around the support frame on the exhaust pipe 8. The other end of the second connecting rod 82 swings accordingly, driving the connecting rod 83 to move axially along the first bracket 84. When the connecting rod 83 moves, it drives multiple connecting seats 87 to move synchronously. The connecting seats 87 drive the lever 89 to swing, causing the lever 89 to rotate around the sleeve rod 88, and driving the spring 90 and the ball 91 to swing. The ball 91 first contacts the stop lever 92. As the lever 89 continues to swing, the spring 90 bends and stores force. When the spring 90 bends until the ball 91 passes the stop lever 92, the spring 90 releases its elastic potential energy, causing the ball 91 to strike the connecting plate 74 and causing the connecting plate 74 to vibrate. Since the connecting plate 74 is in contact with the frame of the filter element mechanism 62, the vibration of the connecting plate 74 can be transmitted to the frame and filter element layer of the filter element mechanism 62, causing the filter element mechanism 62 to vibrate.

[0053] After the diesel generator set is used, the first power unit 42 drives the drive shaft 45 to rotate in the opposite direction, causing the sealing disc 44 to switch back to the open state. During the reset process of the drive shaft 45, the spring 90 and the ball 91 repeat the above-mentioned swinging and passing over the stop lever 92, and move to the other side of the stop lever 92, striking the corresponding connecting plate 74 again to generate vibration. As a result, the diesel generator set can drive the filter element mechanism 62 to vibrate once during startup and shutdown, thereby shaking off some impurities attached to the surface of the filter element mechanism 62, slowing down the rate at which the filter layer on the filter element surface thickens per unit time, and extending the interval between maintenance.

[0054] It should be noted that the opening and closing control logic of the sealing disc 44, the selection of the model of the differential pressure sensor 43, and the installation method are all implemented using existing mature control technologies. The differential pressure sensor 43 is used to trigger the first power unit 42 to close when it detects a pressure difference in the airflow within the bypass pipe 4. The specific model and specifications of the motor in the first power unit 42 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method uses existing technology in this field, so it will not be described in detail here.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A diesel generator set exhaust smoke camouflage device, comprising an intake box (1) and an exhaust box (2), wherein the intake box (1) is provided with an intake port (11), the exhaust box (2) is provided with an exhaust port (21), the exhaust port (21) is connected to an air guide pipe (22), the end of the air guide pipe (22) is provided with a cooling component, the exhaust box (2) is provided with a maintenance component, the exhaust box (2) is connected to a bypass pipe (4), and an exhaust pipe (8) is fixedly connected to the side wall of the exhaust box (2), characterized in that, Also includes: An airflow buffer assembly, a flow equalization assembly, and a vibration assembly are provided, all of which are disposed between the bypass pipe (4) and the air inlet box (1). The airflow buffer assembly and the flow equalization assembly are used to reduce the airflow impact on the filter element, and the vibration assembly is used to prevent excessive impurities from accumulating on the outer surface of the filter element. The airflow buffer assembly includes a lower filter box (6) and an upper filter box (7), both of which are provided with multiple filter element mechanisms (62); it also includes a drive shaft (45). The flow equalization assembly includes a filter element bracket (71) sleeved on the filter element mechanism (62). The axial connecting frame on the filter element bracket (71) is in sliding contact with the filter element skeleton on the filter element mechanism (62). The connecting frame on the filter element bracket (71) is fixedly connected to a baffle plate (72) and a connecting plate (74). The baffle plate (72) has multiple air holes (73). The baffle plate (72) blocks the windward side of the filter element mechanism (62). The bottom of the baffle plate (72) extends from the windward side of the filter element mechanism (62) to the leeward side. The bottom of the baffle plate (72) is provided with a shielding part (75). Both the upper filter box (7) and the lower filter box (6) are provided with multiple flow equalization components along the airflow direction, and the air holes (73) on the multiple flow equalization components are arranged from small to large along the airflow direction; The vibration assembly includes a first connecting rod (81) fixedly connected to the end of the drive shaft (45), a second connecting rod (82) movably connected to the end of the first connecting rod (81), the second connecting rod (82) being rotatably connected to a support frame on the exhaust pipe (8), and a connecting rod (83) movably connected to the end of the second connecting rod (82). The inner side of the upper filter box (7) is provided with multiple first supports (84) and a second support (85) fixedly and vertically connected to the first supports (84). The connecting rod (83) is slidably connected to the first supports (84), and the second support (85) is located between two adjacent connecting plates (74). The connecting rod (83) is axially fixedly connected to multiple... A connecting seat (87) is movably connected to a lever (89). A sleeve (88) is rotatably connected to the second bracket (85). The end of the lever (89) is fixedly connected to the outer wall of the sleeve (88). A spring (90) is fixedly connected to the outer wall of the sleeve (88). A ball (91) is fixedly connected to the end of the spring (90). A stop bar (92) is fixedly connected to the second bracket (85). The position of the stop bar (92) corresponds to the position of the ball (91). The first connecting rod (81) and the second connecting rod (82) are both located on the outside of the housing where the filter element mechanism (62) is located. The connecting rod (83) passes through the side wall of the housing.

2. The diesel generator set exhaust smoke camouflage device according to claim 1, characterized in that, The maintenance component includes a handle (3) mounted on the exhaust box (2), the handle (3) being fixedly connected to a cover plate shaft (31) that passes through the side wall of the exhaust box (2), the cover plate shaft (31) being rotatably connected to a bracket on the exhaust box (2), a maintenance cover plate (32) being fixedly connected to the circumferential side wall of the cover plate shaft (31), and a limit mechanism (33) being fixedly connected to the outer side wall of the exhaust box (2).

3. The diesel generator set exhaust smoke camouflage device according to claim 1, characterized in that, The airflow buffer assembly includes a buffer box (5) connected to the bypass pipe (4). The inner side wall of the buffer box (5) is fixedly connected with a plurality of staggered air guide plates (51). The air guide plates (51) are arranged perpendicular to the axis of the bypass pipe (4). The cross-sectional area of ​​the buffer box (5) is larger than that of the bypass pipe (4).

4. The diesel generator set exhaust smoke camouflage device according to claim 1, characterized in that, A connecting flange (41) is provided between the bypass pipe (4) and the exhaust box (2). A first power unit (42) is fixedly connected to the connecting flange (41). A differential pressure sensor (43) is fixedly connected to the bypass pipe (4). A drive shaft (45) is provided at the output end of the first power unit (42). A sealing disc (44) is fixedly connected to the drive shaft (45) at the position inside the bypass pipe (4).

5. A diesel generator set exhaust smoke camouflage device according to claim 4, characterized in that, The airflow buffer assembly also includes a lower filter box (6) and an upper filter box (7) fixedly connected between the air intake box (1) and the exhaust box (2). The ends of the upper filter box (7) and the lower filter box (6) are connected to the air intake box (1). The ends of the upper filter box (7) and the lower filter box (6) near the exhaust box (2) are sealed. An air intake disc mechanism (61) is provided between the upper filter box (7) and the lower filter box (6) and the air intake box (1). Multiple filter element mechanisms (62) are fixedly connected to the upper filter box (7) and the lower filter box (6) by clamps.

6. The diesel generator set exhaust smoke camouflage device according to claim 5, characterized in that, The two ends of the filter element support (71) are respectively fixed on the two opposing side walls of the upper filter box (7). The filter element mechanism (62) is installed on the inner side of the filter element support (71). The exhaust pipe (8) is connected to the space where the filter element support (71) is located. The upper filter box (7) and the lower filter box (6) are both fixedly connected to the corresponding positions of the exhaust pipe (8). The exhaust pipe (8) is connected to the exhaust box body (2).

7. The diesel generator set exhaust smoke camouflage device according to claim 1, characterized in that, The cooling component includes a duct (23) fixedly connected to the air duct (22). The end of the air duct (22) penetrates the side wall of the duct (23). The air outlet (24) at the end of the air duct (22) inside the duct (23) is concentric with the duct (23) and has the same length direction. Both the air duct (22) and the duct (23) are made of metal and both have heat insulation layers on their inner side walls. A load-bearing frame (25) is provided at the bottom of the duct (23). A fan (26) is fixedly connected inside the duct (23). A guide plate (27) arranged in a circular inclined manner is fixedly connected to the inner side wall of the duct (23). The fan (26) and the guide plate (27) are located on both sides of the air outlet (24).

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