A flue gas treatment device for a diesel generator set

Abstract

The present invention belongs to the technical field of flue gas treatment, and discloses a flue gas treatment device for a diesel generator set, including a device body, wherein the lower end of the device body is fixedly connected to an air intake pipe, the upper end of the device body is fixedly connected to an exhaust pipe, a diverter plate and a spray mechanism are fixedly connected inside the device body, and an air supply mechanism and a foam conveying mechanism are arranged at the upper end of the device body. The present invention facilitates the initial treatment of the flue gas and the cooling of the flue gas by arranging the coordination of structures such as the diverter plate and the spray mechanism. By arranging the diverter plate and the spray mechanism, the high-temperature flue gas conveyed by the air intake pipe is dispersed by the diverter plate, and then the spray mechanism sprays a cleaning agent to preliminarily cool the high-temperature flue gas. By arranging the coordination of structures such as the air supply mechanism and the foam conveying mechanism, the problem of low effect of spraying to clean the flue gas is solved.

Description

Technical Field

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

[0002] Diesel generators produce a variety of exhaust emissions during operation, which pollute the environment. Among them, fine particulate matter is harmful to the respiratory system and increases the risk of respiratory diseases. By treating the flue gas, the emission of these harmful substances can be effectively reduced and the atmospheric environment can be protected. When treating the flue gas, because the temperature of the flue gas emitted by the diesel generator is roughly between 100 and 150 degrees Celsius before treatment, it can be wet treated first to clean the pollutants and particulate matter inside it while cooling it down.

[0003] Chinese patent application number 202211695786.4 discloses a diesel generator exhaust smoke elimination and cooling device, which includes a spray smoke elimination and cooling system, a heat exchange cooling and dehumidification system, a high-voltage electrostatic smoke elimination system, and a mixed air cooling system connected to a control system and arranged in sequence; it will be able to eliminate, purify, and cool the high-temperature black smoke emitted by the diesel generator, which has a good effect on air pollution prevention and control and saves water resources.

[0004] During wet treatment, the traditional treatment method is to pass the flue gas into a spray tower so that the flue gas contacts the sprayed cleaning liquid. The cleaning liquid contacts the flue gas, causing the flue gas and the cleaning liquid to combine and adsorb the fine particles inside the flue gas to clean the flue gas. However, this spraying method requires a large amount of cleaning liquid for spraying because the contact surface between the flue gas and the cleaning liquid is small, which is inefficient and will cause a large amount of water resources to be wasted. Therefore, a flue gas treatment device for a diesel generator set is proposed. Summary of the Invention

[0005] In order to solve the problem of low flue gas cleaning effect of spraying proposed in the above background technology, the present invention provides a flue gas treatment device for a diesel generator set.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a flue gas treatment device for a diesel generator set, comprising a device body, wherein the lower end of the device body is fixedly connected to an air intake pipe, the upper end of the device body is fixedly connected to an exhaust pipe, a diverter plate and a spray mechanism are fixedly connected inside the device body, an air supply mechanism and a foam delivery mechanism are provided at the upper end of the device body, a foam elimination mechanism and an air intake fan are fixedly connected to the side end of the device body, an air guide pipe is provided at the lower end of the air intake fan, a foam deflector is fixedly connected inside the device body, a drainage channel is provided at the lower end of the foam deflector, and a waste liquid pipeline is fixedly connected to the bottom of the device body;

[0007] The air supply mechanism includes a first motor and an air supply pipeline. The output of the first motor is fixedly connected to a transmission rod, and the bottom of the transmission rod is fixedly connected to a first fan.

[0008] Preferably, the air inlet pipe is located on the lower side of the diverter plate, the diverter plate is located on the lower side of the spray mechanism, the spray mechanism is externally connected to a cleaning liquid delivery pipe, the exhaust pipe is connected to the foam delivery mechanism, and the spray mechanism is located at the bottom of the air delivery pipe.

[0009] Preferably, the first motor is located at the top of the device body and is fixedly connected to the device body, the transmission rod and the first fan are located inside the air pipeline, the transmission rod is fixedly connected to the air pipeline, the air pipeline is T-shaped and is fixedly connected to the device body, and the top of the air pipeline is connected to the foam conveying mechanism.

[0010] Preferably, the foam conveying mechanism includes a foam diversion bracket, an arc-shaped groove and a foam manufacturing component. A pair of smoke guide plates are fixedly connected to the inside of the foam diversion bracket. The upper end of the foam diversion bracket is slidably connected to a movable push plate. The top of the movable push plate is fixedly connected to a support frame. The inside of the support frame is fixedly connected to a fluid infusion tube. The side of the foam manufacturing component is fixedly connected to a fluid infusion tube.

[0011] Preferably, the foam diversion bracket is fixedly connected to the inside of the device body, the foam diversion bracket is fixedly connected to the gas pipeline, the smoke guide plate is in conflict with the top of the gas pipeline, the movable push plate is located at the top of the gas pipeline, the movable push plate and the support frame are slidably connected to the transmission rod, the arc groove is opened at one end of the transmission rod located inside the support frame, the liquid infusion tube is slidably connected inside the arc groove, the smoke guide plate is in the shape of a downward curved arc, the smoke guide plates are mirror-imaged on both sides of the gas pipeline, and the end of the liquid infusion tube away from the foam manufacturing component is externally connected to a cleaning liquid delivery pipeline.

[0012] Preferably, the foam manufacturing component includes a cleaning liquid tank and a support rod, a grid plate is fixedly connected to the top of the cleaning liquid tank, a stirring rod is rotatably connected to the outside of the support rod, a spur gear is fixedly connected to one end of the stirring rod close to the transmission rod, and a spur gear ring is fixedly connected to the inside of the cleaning liquid tank.

[0013] Preferably, the cleaning liquid tank is fixedly connected to the top of the gas pipeline, the cleaning liquid tank surrounds the outside of the transmission rod, the grid plate is rotatably connected to the transmission rod, the support rod is distributed in a ring shape at one end of the transmission rod located inside the cleaning liquid tank, the support rod is fixedly connected to the transmission rod, and the spur gear is meshed with the spur gear ring.

[0014] Preferably, the foam elimination mechanism includes a second motor, a pair of brush rollers and a first drain outlet, the bottom of the brush roller is fixedly connected to a transmission gear, and the output end of the second motor and the outer end of the transmission gear are transmission-connected by a chain.

[0015] Preferably, the second motor is fixedly connected to the inside of the device body, the brush roller is rotatably connected to the device body, and the first drain port is opened inside the device body for connecting the second motor with the drain.

[0016] Preferably, the air intake fan is located on the side of the device body away from the brush roller, the lower end of the air duct faces the lower side of the foam diversion bracket, the foam deflector is located on the side of the device body close to the brush roller, and the drainage channel is located between the spray mechanism and the brush roller.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The present invention facilitates the initial treatment of flue gas and cooling of the flue gas by providing a diverter plate and a spray mechanism. By providing the diverter plate and the spray mechanism, the diverter plate disperses the high-temperature flue gas transported by the air intake pipe, and then the spray mechanism sprays a cleaning agent to initially cool the high-temperature flue gas. At the same time, the cleaning agent contacts the flue gas, so that part of the smoke dust inside the flue gas is adsorbed, thereby preliminarily cleaning the flue gas. At the same time, the sprayed cleaning agent cools the flue gas.

[0019] (2) The present invention solves the problem of low efficiency of spray cleaning of flue gas by arranging the coordination of structures such as an air supply mechanism and a foam delivery mechanism. The support rod and the stirring rod inside the foam manufacturing component are rotated to stir the cleaning liquid so that it passes through the grid plate to form foam. At the same time, the support frame on the top of the movable push plate drives the movable push plate to slide up and down, pushing the foam downward, so that the foam contacts the flue gas transported by the gas pipeline, reacts with the smoke dust inside the flue gas, and absorbs the floating dust inside. The contact area between the flue gas and the cleaning agent is increased by the foam, so that the particulate pollutants inside the flue gas can be better adsorbed, thereby saving a large amount of water resources and improving the cleaning efficiency.

[0020] (3) The present invention facilitates the cleaning of foam after adsorbing particulate matter by arranging a foam elimination mechanism and an air intake fan and other structures. The air intake fan blows the foam to the brush roller for defoaming treatment, and at the same time blows the flue gas flowing through the foam diversion bracket to the exhaust pipe, so that the cleaned flue gas is discharged from the exhaust pipe. The foam guide plate guides the foam to the brush roller for defoaming treatment, and the waste liquid formed by the pollutants in the flue gas is discharged from the drain to the waste liquid pipe for subsequent treatment, so that the foam and waste liquid are collected and cleaned to avoid subsequent pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a side sectional view of the present invention as a whole;

[0023] Figure 3 This is an enlarged cross-sectional view of the spray mechanism of the present invention;

[0024] Figure 4 This is an enlarged cross-sectional view of the air supply mechanism of the present invention;

[0025] Figure 5 This is an enlarged cross-sectional view of the foam delivery mechanism of the present invention;

[0026] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0027] Figure 7 This is a partial disassembled diagram of the foam delivery mechanism of the present invention;

[0028] Figure 8 This is an enlarged cross-sectional view of the foam elimination mechanism of the present invention.

[0029] In the figure: 1. device body; 2. air intake duct; 3. exhaust duct; 4. diverter plate; 5. spray mechanism; 6. air supply mechanism; 61. first motor; 62. transmission rod; 63. first fan; 64. air supply duct; 7. foam delivery mechanism; 71. foam diverter bracket; 72. flue gas guide plate; 73. movable push plate; 74. support frame; 75. arc groove; 76. foam manufacturing component; 761. cleaning liquid tank; 762. grid plate; 763. support rod; 764. stirring rod; 765. spur gear; 766. spur gear ring; 77. sliding bump; 78. liquid replenishing tube; 8. foam elimination mechanism; 81. second motor; 82. brush roller; 83. transmission gear; 84. chain; 85. first drain outlet; 9. air intake fan; 10. air guide duct; 11. foam deflector; 12. drain; 13. waste liquid pipeline. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figures 1 to 8As shown, the present invention provides a flue gas treatment device for a diesel generator set, a flue gas treatment device for a diesel generator set, comprising a device body 1, an air intake pipe 2 is fixedly connected to the lower end of the device body 1, an exhaust pipe 3 is fixedly connected to the upper end of the device body 1, a diverter plate 4 and a spray mechanism 5 are fixedly connected inside the device body 1, an air supply mechanism 6 and a foam delivery mechanism 7 are provided at the upper end of the device body 1, a foam elimination mechanism 8 and an air intake fan 9 are fixedly connected to the side end of the device body 1, an air guide 10 is provided at the lower end of the air intake fan 9, a foam deflector 11 is fixedly connected to the inside of the device body 1, a drain channel 12 is provided at the lower end of the foam deflector 11, and a waste liquid pipeline 13 is fixedly connected to the bottom of the device body 1;

[0032] The air supply mechanism 6 includes a first motor 61 and an air supply pipe 64 . The output of the first motor 61 is fixedly connected to a transmission rod 62 , and the bottom of the transmission rod 62 is fixedly connected to a first fan 63 .

[0033] The above scheme is adopted: the high-temperature flue gas transported by the air intake pipe 2 is dispersed by the diverter plate 4, and then the spray mechanism 5 sprays the cleaning agent to preliminarily cool the high-temperature flue gas, and then the first motor 61 drives the transmission rod 62 and the first fan 63 to rotate, so that the first fan 63 transports the flue gas to the inside of the foam diversion bracket 71 through the air delivery pipe 64. While the first fan 63 transports the flue gas, the transmission rod 62 drives the support rod 763 to rotate, so that the support rod 763 drives the stirring rod 764 to rotate, and the rotation of the stirring rod 764 The cleaning liquid inside the cleaning liquid tank 761 is stirred so that it generates foam through the grid plate 762. At the same time, the sliding protrusion 77 slides inside the arc groove 75, thereby driving the support frame 74 and the movable push plate 73 to move up and down, continuously pushing the foam generated by the grid plate 762 downward; so that the foam can come into contact with the flue gas transported by the gas pipeline 64, react with the pollutants inside the flue gas, adsorb the pollutants inside, clean the flue gas, and increase the contact area between the flue gas and the cleaning agent through the foam, so that the pollutants in the flue gas can be better cleaned.

[0034] like Figure 2 、 Figure 3 and Figure 4 As shown, the air intake pipe 2 is located on the lower side of the diverter plate 4, the diverter plate 4 is located on the lower side of the spray mechanism 5, the spray mechanism 5 is externally connected to a cleaning liquid delivery pipe, the exhaust pipe 3 is connected to the foam delivery mechanism 7, the spray mechanism 5 is located at the bottom of the air delivery pipe 64, the first motor 61 is located at the top of the device body 1 and is fixedly connected to the device body 1, the transmission rod 62 and the first fan 63 are located inside the air delivery pipe 64, the transmission rod 62 is fixedly connected to the air delivery pipe 64, the air delivery pipe 64 is T-shaped and is fixedly connected to the device body 1, and the top of the air delivery pipe 64 is connected to the foam delivery mechanism 7.

[0035] The above scheme is adopted: by setting a diverter plate 4 and a spraying mechanism 5, the diverter plate 4 disperses the high-temperature flue gas transported by the air intake pipe 2, and then the spraying mechanism 5 sprays a detergent to preliminarily cool the high-temperature flue gas. At the same time, the detergent contacts the flue gas, so that part of the smoke dust inside the flue gas is adsorbed. The air supply pipe 64 is set on the top of the spraying mechanism 5, so that after the flue gas is cooled and preliminarily treated, the first motor 61 drives the first fan 63 to rotate through the transmission rod 62, so that the first fan 63 transports the flue gas through the air supply pipe 64 to the inside of the foam diversion bracket 71 for subsequent treatment.

[0036] like Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the foam delivery mechanism 7 includes a foam diversion bracket 71, an arcuate groove 75 and a foam manufacturing component 76. A pair of smoke guide plates 72 are fixedly connected to the inside of the foam diversion bracket 71. The upper end of the foam diversion bracket 71 is slidably connected to a movable push plate 73. The top of the movable push plate 73 is fixedly connected to a support frame 74. The support frame 74 is fixedly connected to a sliding protrusion 77. The side of the foam manufacturing component 76 is fixedly connected to a liquid infusion tube 78. The foam diversion bracket 71 is fixedly connected to the inside of the device body 1. The foam diversion bracket 71 is connected to the gas pipeline 6. 4 is fixedly connected, the smoke guide plate 72 is in contact with the top of the gas pipeline 64, the movable push plate 73 is located at the top of the gas pipeline 64, the movable push plate 73 and the support frame 74 are slidably connected to the transmission rod 62, an arc groove 75 is provided at one end of the transmission rod 62 located inside the support frame 74, and the sliding protrusion 77 is slidably connected inside the arc groove 75. The smoke guide plate 72 is in a downwardly curved arc shape, and the smoke guide plates 72 are distributed in a mirror image on both sides of the gas pipeline 64. The end of the liquid infusion tube 78 away from the foam making component 76 is externally connected to the cleaning liquid delivery pipeline.

[0037] The above scheme is adopted: by setting up a foam diversion bracket 71, the foam produced by the foam manufacturing component 76 is separated by the foam diversion bracket 71, and the smoke entering the foam diversion bracket 71 from the gas pipeline 64 is separated synchronously. The smoke guide plate 72 provided inside the foam diversion bracket 71 can guide the smoke entering the foam diversion bracket 71 from the gas pipeline 64, so that the smoke is blown to the side of the foam diversion bracket 71 downward. The movable push plate 73 provided on the top of the foam diversion bracket 71 is driven by the support frame 74 on the top of the movable push plate 73 to slide up and down. The movable push plate 73 pushes the foam inside the foam diversion bracket 71 downward, so that the foam can come into contact with the flue gas transported by the gas pipeline 64, react with the smoke dust inside the flue gas, and absorb the floating dust inside. Through the arc groove 75 provided on the transmission rod 62 and the sliding protrusion 77 inside the support frame 74, when the transmission rod 62 rotates, the sliding protrusion 77 slides inside the arc groove 75, thereby driving the support frame 74 and the movable push plate 73 to move up and down, continuously pushing the foam downward. The liquid replenishing tube 78 is provided to replenish the cleaning liquid inside the foam manufacturing component 76.

[0038] like Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the foam manufacturing component 76 includes a cleaning liquid tank 761 and a support rod 763. A grid plate 762 is fixedly connected to the top of the cleaning liquid tank 761. A stirring rod 764 is rotatably connected to the outside of the support rod 763. The stirring rod 764 is fixedly connected to the end close to the transmission rod 62 with a spur gear 765. A spur gear ring 766 is fixedly connected to the inside of the cleaning liquid tank 761. The cleaning liquid tank 761 is fixedly connected to the top of the air pipeline 64. The cleaning liquid tank 761 surrounds the outside of the transmission rod 62. The grid plate 762 is rotatably connected to the transmission rod 62. The support rod 763 is distributed in a ring shape at one end of the transmission rod 62 located inside the cleaning liquid tank 761. The support rod 763 is fixedly connected to the transmission rod 62, and the spur gear 765 is meshed with the spur gear ring 766.

[0039] The above scheme is adopted: by setting up a cleaning liquid tank 761, the transmission rod 62 drives the support rod 763 to rotate, so that the support rod 763 drives the stirring rod 764 to rotate, and at the same time the spur gear 765 rotates along the spur gear ring 766, and the cleaning liquid inside the cleaning liquid tank 761 is stirred by the rotation of the stirring rod 764 so that it passes through the grid plate 762 to generate foam. The design of the cleaning liquid tank 761 and the grid plate 762 can facilitate the rotation and stirring of the cleaning liquid so that it passes through the grid plate 762 to form foam. The support rod 763 and the stirring rod 764 stir the cleaning liquid, so that the transmission rod 62 drives the first fan 63 to rotate to convey the flue gas, and can drive the support rod 763 and the stirring rod 764 to stir the cleaning liquid, so that the conveying of the flue gas and the generation of foam are carried out synchronously.

[0040] like Figure 2 、 Figure 3 and Figure 8 As shown, the foam elimination mechanism 8 includes a second motor 81, a pair of brush rollers 82 and a first drain outlet 85. The bottom of the brush roller 82 is fixedly connected to a transmission gear 83. The output end of the second motor 81 and the outer end of the transmission gear 83 are transmission-connected by a chain 84. The second motor 81 is fixedly connected to the inside of the device body 1. The brush roller 82 is rotationally connected to the device body 1. The first drain outlet 85 is opened inside the device body 1 for connecting the second motor 81 with the drain 12.

[0041] The above scheme is adopted: by setting up a foam elimination mechanism 8, the brush roller 82 driven by the second motor 81 rotates rapidly, so that the brush roller 82 defoams the foam entering the brush roller 82, and then the cleaning liquid remaining after the foam is eliminated flows into the drain channel 12 from the first drain port 85, and finally is discharged synchronously from the waste liquid pipe 13 through the waste liquid.

[0042] like Figure 2 、 Figure 3 、 Figure 4 and Figure 8 As shown, the air intake fan 9 is located on the side of the device body 1 away from the brush roller 82, the lower end of the air guide pipe 10 is facing the lower side of the foam diversion bracket 71, the foam guide plate 11 is located on the side of the device body 1 close to the brush roller 82, and the drain channel 12 is located between the spray mechanism 5 and the brush roller 82.

[0043] The above scheme is adopted: by setting an air intake fan 9 and an air guide duct 10, the air intake fan 9 blows air into the inside of the device body 1, and then the air guide duct 10 guides the airflow to the bottom of the foam diversion bracket 71, and the air intake fan 9 is set on the side of the device body 1 away from the brush roller 82, so that the air intake fan 9 can blow the foam falling from the foam diversion bracket 71 to the brush roller 82 for defoaming treatment, and at the same time, the flue gas flowing through the foam diversion bracket 71 is blown to the exhaust pipe 3, so that the cleaned flue gas is discharged from the exhaust pipe 3, and by setting a foam guide plate 11 and a drain 12, the foam guide plate 11 guides the foam to the brush roller 82, and the waste liquid formed by combining with the pollutants inside the flue gas is discharged from the drain 12 to the waste liquid pipe 13 for subsequent treatment.

[0044] The working principle and use process of the present invention are as follows: during operation, the high-temperature flue gas transported by the air intake pipe 2 is first dispersed by the diverter plate 4, and then the spray mechanism 5 sprays the cleaning agent to preliminarily cool the high-temperature flue gas. At the same time, the cleaning agent contacts the flue gas, so that part of the smoke dust inside the flue gas is adsorbed. Then, the first motor 61 drives the transmission rod 62 and the first fan 63 to rotate, so that the first fan 63 transports the flue gas to the inside of the foam diverter bracket 71 through the air delivery pipe 64. While the first fan 63 is transporting the flue gas, the transmission rod 62 drives the support rod 763 to rotate, so that the support rod 763 drives the stirring rod 764 to rotate, so that the spur gear 765 rotates along the spur gear ring 766. The rotation of the stirring rod 764 stirs the cleaning liquid inside the cleaning liquid tank 761 so that it passes through the grid plate 762 to generate foam. At the same time, the sliding protrusion 77 slides inside the arc groove 75, thereby driving the support frame 74 and the movable push plate 73 to move up and down, continuously pushing the foam generated by the grid plate 762 downward;

[0045] After the flue gas enters the foam diversion bracket 71 at the gas pipeline 64, the flue gas is separated by the foam diversion bracket 71, and then the flue gas entering the foam diversion bracket 71 from the gas pipeline 64 is guided by the flue gas guide plate 72 provided inside the foam diversion bracket 71, so that the flue gas is blown to the side of the foam diversion bracket 71 downward, so that the foam can contact the flue gas transported by the gas pipeline 64, react with the pollutants inside the flue gas, absorb the pollutants inside, clean the flue gas, and then the foam and The flue gas falls from the foam diversion bracket 71 to the inside of the device body 1, and then the air intake fan 9 blows air into the inside of the device body 1, blowing the foam falling from the foam diversion bracket 71 to the brush roller 82, and the foam guide plate 11 guides the foam to between the brush rollers 82 for defoaming treatment. At the same time, the flue gas flowing from the foam diversion bracket 71 is blown to the exhaust pipe 3, so that the cleaned flue gas is discharged from the exhaust pipe 3, and is discharged from the waste liquid from the drain 12 to the waste liquid pipe 13, and then discharged from the waste liquid pipe 13.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas treatment device for a diesel generator set, comprising a device body (1), characterized in that: The lower end of the device body (1) is fixedly connected to an air intake pipe (2), the upper end of the device body (1) is fixedly connected to an exhaust pipe (3), the inside of the device body (1) is fixedly connected to a diverter plate (4) and a spray mechanism (5), the upper end of the inside of the device body (1) is provided with an air supply mechanism (6) and a foam conveying mechanism (7), the side end of the device body (1) is fixedly connected to a foam elimination mechanism (8) and an air intake fan (9), the lower end of the air intake fan (9) is provided with an air guide pipe (10), the inside of the device body (1) is fixedly connected to a foam guide plate (11), the lower end of the foam guide plate (11) is provided with a drainage channel (12), and the bottom of the device body (1) is fixedly connected to a waste liquid pipe (13); The air supply mechanism (6) comprises a first motor (61) and an air supply pipeline (64); the output of the first motor (61) is fixedly connected to a transmission rod (62); the bottom of the transmission rod (62) is fixedly connected to a first fan (63); The air inlet pipe (2) is located at the lower side of the diverter plate (4), the diverter plate (4) is located at the lower side of the spray mechanism (5), the spray mechanism (5) is externally connected to a cleaning liquid delivery pipe, the exhaust pipe (3) is connected to the foam delivery mechanism (7), and the spray mechanism (5) is located at the bottom of the air delivery pipe (64); The first motor (61) is located at the top of the device body (1) and is fixedly connected to the device body (1); the transmission rod (62) and the first fan (63) are located inside the air delivery pipeline (64); the transmission rod (62) is fixedly connected to the air delivery pipeline (64); the air delivery pipeline (64) is T-shaped and is fixedly connected to the device body (1); and the top of the air delivery pipeline (64) is connected to the foam delivery mechanism (7).

2. The flue gas treatment device of a diesel generator set according to claim 1, characterized in that: The foam conveying mechanism (7) comprises a foam diversion bracket (71), an arcuate groove (75) and a foam manufacturing component (76); a pair of smoke guide plates (72) are fixedly connected inside the foam diversion bracket (71); a movable push plate (73) is slidably connected to the upper end of the foam diversion bracket (71); a support frame (74) is fixedly connected to the top of the movable push plate (73); a sliding protrusion (77) is fixedly connected inside the support frame (74); and a liquid infusion tube (78) is fixedly connected to the side of the foam manufacturing component (76).

3. The flue gas treatment device of a diesel generator set according to claim 2, characterized in that: The foam diversion bracket (71) is fixedly connected to the inside of the device body (1), the foam diversion bracket (71) is fixedly connected to the gas pipeline (64), the smoke guide plate (72) is in contact with the top of the gas pipeline (64), the movable push plate (73) is located at the top of the gas pipeline (64), the movable push plate (73) and the support frame (74) are slidably connected to the transmission rod (62), the arc groove (75) is opened at one end of the transmission rod (62) located inside the support frame (74), the sliding protrusion (77) is slidably connected inside the arc groove (75), the smoke guide plate (72) is in the shape of an arc that bends downward, and the smoke guide plates (72) are distributed in a mirror image on both sides of the gas pipeline (64), and the end of the liquid replenishing pipe (78) away from the foam manufacturing component (76) is externally connected to a cleaning liquid delivery pipeline.

4. The flue gas treatment device for a diesel generator set according to claim 3 is characterized in that: The foam manufacturing component (76) comprises a cleaning liquid tank (761) and a support rod (763); a grid plate (762) is fixedly connected to the top of the cleaning liquid tank (761); a stirring rod (764) is rotatably connected to the outer side of the support rod (763); a spur gear (765) is fixedly connected to one end of the stirring rod (764) close to the transmission rod (62); and a spur gear ring (766) is fixedly connected to the inside of the cleaning liquid tank (761).

5. The flue gas treatment device for a diesel generator set according to claim 4, characterized in that: The cleaning liquid tank (761) is fixedly connected to the top of the gas transmission pipeline (64), the cleaning liquid tank (761) surrounds the outer side of the transmission rod (62), the grid plate (762) is rotatably connected to the transmission rod (62), the support rod (763) is distributed in an annular shape at one end of the transmission rod (62) located inside the cleaning liquid tank (761), the support rod (763) is fixedly connected to the transmission rod (62), and the spur gear (765) is meshingly connected to the spur gear ring (766).

6. The flue gas treatment device for a diesel generator set according to claim 1, characterized in that: The foam elimination mechanism (8) comprises a second motor (81), a pair of brush rollers (82) and a first drain outlet (85); the bottom of the brush roller (82) is fixedly connected to a transmission gear (83); the output end of the second motor (81) and the outer end of the transmission gear (83) are transmission-connected by a chain (84).

7. The flue gas treatment device of a diesel generator set according to claim 6, characterized in that: The second motor (81) is fixedly connected inside the device body (1), the brush roller (82) is rotatably connected to the device body (1), and the first drain port (85) is provided inside the device body (1) for connecting the second motor (81) with the drain channel (12).

8. The flue gas treatment device for a diesel generator set according to claim 1, characterized in that: The air intake fan (9) is located on a side of the device body (1) away from the brush roller (82), the lower end of the air guide pipe (10) faces the lower side of the foam diversion bracket (71), the foam guide plate (11) is located on a side of the device body (1) close to the brush roller (82), and the drainage channel (12) is located between the spray mechanism (5) and the brush roller (82).

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