Tail gas denitration device of gas generator set

Abstract

The invention relates to the technical field of tail gas denitration, in particular to a gas generator set tail gas denitration device which comprises a tank body, a dust removal mechanism for pretreating tail gas and a denitration mechanism for denitrating the tail gas. The pretreatment mechanism comprises blades rotationally mounted on the tank body, a sealing plate fixedly mounted on the tank body, an air hole I formed in the sealing plate, and a rotating assembly for throwing out tail gas, and the rotating assembly comprises a connecting plate, an air chamber fixedly mounted on the fixing frame, and an air guide plate fixedly mounted on the air chamber. According to the tail gas filtering device, when tail gas enters the tank body, on one hand, the blades can be driven to rotate, the gas guide plate rotates to throw the tail gas out of the flow channel and remove small particles in the tail gas, on the other hand, the tail gas circulation path is increased, the tail gas is filtered for multiple times when the tail gas circulates, and therefore double filtration of the small particles in the tail gas is achieved; the pretreatment effect on the tail gas is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas denitrification, and particularly to a tail gas denitrification device for a gas-fired generator set. Background Art

[0002] During the operation of a gas-fired generator set, a large amount of nitrogen oxides will be generated. Nitrogen oxides are one of the main pollutants causing air pollution. Nitrogen oxides can cause environmental problems such as acid rain, the greenhouse effect, and ozone layer depletion, posing a serious threat to the living environment of humans. In this field, the selective catalytic reduction technology is a key technology in the field of tail gas denitrification for gas-fired generator sets. The SCR technology, through the action of a catalyst, enables ammonia to undergo an oxidation-reduction reaction with NOx, converting NOx into harmless nitrogen and water. It has a high denitrification efficiency, can operate stably under various loads, and has little impact on the engine efficiency.

[0003] The invention with the application number CN202410591347.1 relates to a tail gas denitrification and purification device; it relates to the technical field of tail gas denitrification, including a denitrification tower. At one end of the denitrification tower away from the tail gas transfer component, a first storage barrel component and a second storage barrel component are placed, and the tops of the first storage barrel component and the second storage barrel component are both fixedly connected to the ammonia transportation component. One end of the first storage barrel component and the second storage barrel component are both fixedly connected to the ammonia water transportation component; let the ammonia water enter the second ammonia water pipeline through the first ammonia water pipeline, and then flow into the space in the connection chamber through the second ammonia water pipeline; the space in the connection chamber is communicated with the annular inner groove of the connecting piece through the round hole in the hole groove and the connecting hole of the sprayer. The ammonia water in the connection chamber will flow into the annular inner groove, then flow into the connecting pipe, and finally the ammonia water is sprayed out through the outer shell. The multiple dispersion plates in the outer shell can divide the sprayed ammonia water, enabling the ammonia water to fly everywhere, thereby increasing the mixing speed of the ammonia water and the tail gas and enabling the ammonia water and the tail gas to mix better.

[0004] However, the tail gas also contains tiny particles. Direct denitrification treatment will increase the load of the denitrification device and affect the denitrification efficiency.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above defects. Summary of the Invention

[0006] The purpose of the present invention is to provide a tail gas denitrification device for a gas-fired generator set that can effectively solve the above technical problems.

[0007] To achieve the purpose of the present invention, the following technical solutions are adopted:

[0008] A tail gas denitrification device for a gas-fired generator set includes: a tank body, a dust removal mechanism for pre-treating the tail gas, and a denitrification mechanism for denitrifying the tail gas;

[0009] The preprocessing mechanism includes: blades rotatably installed on the tank body, a sealing plate fixedly installed on the tank body, a first air hole opened on the sealing plate, and a rotating assembly for throwing out the tail gas;

[0010] The rotating assembly includes: a connecting plate, a second gear rotatably installed on the connecting plate, a first gear meshing with the second gear, a connecting shaft fixedly installed on the second gear, an air chamber fixedly installed on the fixed frame, and a gas guiding plate fixedly installed on the air chamber;

[0011] A flow channel is opened on the gas guiding plate, a toothed ring is fixedly installed on the connecting plate, a second air hole is opened on the toothed ring, and the first gear meshes with the toothed ring;

[0012] The denitration mechanism includes: a catalytic layer slidably installed on the fixed frame, a connecting frame fixedly installed on the catalytic layer, a top rod fixedly installed on the gas guiding plate, a limiting assembly for limiting the catalytic layer, and a denitration assembly.

[0013] Furthermore, a fixed frame is fixedly installed on the inner wall of the tank body, a dust collecting groove is opened on the fixed frame, and a dust collecting hole is opened on the dust collecting groove.

[0014] Furthermore, the toothed ring is rotatably connected to the sealing plate, and the blade is fixedly connected to the toothed ring.

[0015] Furthermore, the first gear is rotatably installed on the connecting plate, a connecting plate is fixedly connected to the connecting plate, the connecting plate is fixedly connected to the fixed frame, and a through hole is opened on the connecting plate.

[0016] Furthermore, a first transmission shaft fork is fixedly installed on the connecting shaft, a universal joint is fixedly installed on the first transmission shaft fork, a second transmission shaft fork is fixedly installed on the universal joint, and the second transmission shaft fork is fixedly connected to the gas guiding plate.

[0017] Furthermore, the denitration assembly includes: a hinged frame fixedly installed on the connecting frame, a spray head rotatably installed on the hinged frame, and a telescopic rod fixedly installed on the spray head.

[0018] Furthermore, the telescopic rod is composed of a sleeve fixedly installed on the spray head, a first spring fixedly installed on the sleeve, and a connecting rod fixedly installed on the first spring, and the connecting rod is rotatably connected to the fixed frame.

[0019] Furthermore, the limiting assembly includes: a limiting rod fixedly installed on the catalytic layer, and a second spring for storing energy during the sliding process of the catalytic layer, and both ends of the second spring are fixedly installed with mounting plates, and the two groups of mounting plates are respectively fixedly connected to the limiting rod and the fixed frame.

[0020] Further, a dust removal block is fixedly installed at one end of the limiting rod. A dust outlet is formed in the dust removal block. A convex rod is fixedly installed on the dust collecting hole. The position of the dust outlet corresponds to that of the convex rod. The dust removal block is matched with the dust collecting groove.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] For a tail gas denitration device of a gas-fired generator set according to the present invention, when the tail gas enters the tank body, on the one hand, it can drive the blades to rotate, so that the air guide plate rotates to throw the tail gas out of the flow channel, removing the tiny particles in the tail gas. On the other hand, it increases the flow path of the tail gas and filters the tail gas multiple times when the tail gas flows, thereby realizing the double filtration of the tiny particles in the tail gas and improving the pretreatment effect on the tail gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0024] Figure 1 It is a schematic diagram of a tail gas denitration device of a gas-fired generator set according to the present invention;

[0025] Figure 2 It is a cross-sectional view of a tail gas denitration device of a gas-fired generator set according to the present invention;

[0026] Figure 3 It is a schematic diagram of a pretreatment mechanism of a tail gas denitration device of a gas-fired generator set according to the present invention;

[0027] Figure 4 It is a schematic diagram of an air guide plate of a tail gas denitration device of a gas-fired generator set according to the present invention;

[0028] Figure 5 It is a schematic diagram of a transmission component of a tail gas denitration device of a gas-fired generator set according to the present invention;

[0029] Figure 6 It is a schematic diagram of a fixing frame of a tail gas denitration device of a gas-fired generator set according to the present invention;

[0030] Figure 7 It is a schematic diagram of a dust collecting hole of a tail gas denitration device of a gas-fired generator set according to the present invention;

[0031] Figure 8 It is a schematic diagram of a denitration mechanism of a tail gas denitration device of a gas-fired generator set according to the present invention;

[0032] Figure 9 It is a Figure 8 magnified schematic diagram at A of a tail gas denitration device of a gas-fired generator set according to the present invention;

[0033] Figure 10 For a denitration device for the tail gas of a gas-fired generator set of the present invention Figure 8 The enlarged schematic view at B in the figure;

[0034] Figure 11 The schematic view of the telescopic rod of a denitration device for the tail gas of a gas-fired generator set of the present invention;

[0035] Figure 12 The schematic view of the connecting shaft of a denitration device for the tail gas of a gas-fired generator set of the present invention.

[0036] In the figure: 1. Tank body; 11. Air inlet; 12. Air outlet; 13. Fixed frame; 131. Dust collection tank; 132. Dust collection hole; 133. Convex rod; 2. Dust removal mechanism; 21. Blade; 211. Sealing plate; 2111. Air hole one; 22. Rotating assembly; 221. Connecting plate; 2211. Connecting plate; 2212. Through hole; 222. Gear one; 223. Gear two; 224. Connecting shaft; 2241. Transmission shaft fork one; 2242. Universal joint; 2243. Transmission shaft fork two; 225. Air chamber; 226. Air guide plate; 2261. Flow channel; 227. Tooth ring; 228. Air hole two; 3. Denitration mechanism; 31. Catalytic layer; 32. Connecting frame; 33. Denitration component; 331. Hinge frame; 332. Sprayer; 333. Telescopic rod; 3331. Sleeve; 3332. Spring one; 3333. Connecting rod; 34. Limiting component; 341. Limiting rod; 342. Mounting plate; 343. Spring two; 344. Dust removal block; 3441. Dust outlet; 35. Thrust rod. Specific embodiments

[0037] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0039] As Figures 1 to 12 shown, a denitration device for the tail gas of a gas-fired generator set according to the present invention includes a tank body 1, an air inlet 11 and an air outlet 12 communicating with the tank body 1; a dust removal mechanism 2 for pre-treating the tail gas and a denitration mechanism 3 for denitrifying the tail gas. The tail gas generated by the gas-fired generator set is transported by setting a blower so as to be processed in time and avoid the accumulation of tail gas.

[0040] The tail gas is transported into the interior of the tank body 1 through the air inlet 11, and the kinetic energy when the tail gas enters the tank body 1 is used to drive the pre-treatment mechanism to process the particles in the tail gas. Then, ammonia is injected into the tail gas by the denitration mechanism 3, and the catalytic layer 31 is cooperated to achieve the effect of denitrifying the tail gas.

[0041] The pre-treatment mechanism includes: blades 21 rotatably installed on the tank body 1, a sealing plate 211 fixedly installed on the tank body 1, a first air hole 2111 opened on the sealing plate 211, and a rotating assembly 22 for throwing out the tail gas.

[0042] The gas enters through the air inlet 11 and drives the blades 21 to rotate. The blades 21 drive the rotating assembly 22 to rotate, removing the tiny particles in the tail gas. The sealing plate 211 can ensure the pressure of the tail gas entering the tank body 1, and the first air hole 2111 ensures the normal flow of the tail gas and ensures the working effect.

[0043] Specifically, the rotating assembly 22 includes: a connecting plate 221, a gear ring 227 fixedly installed on the connecting plate 221, a second air hole 228 opened on the gear ring 227, a connecting plate 2211 fixedly connected to the connecting plate 221, the connecting plate 2211 is fixedly connected to the fixing frame 13, and a through hole 2212 is opened on the connecting plate 2211.

[0044] When the blade 21 rotates, it drives the gear ring 227 to rotate, causing the air hole one 2111 to coincide with the air hole two 228. The tail gas enters between the fixed frame 13 and the connecting plate 221, and then enters the interior of the air chamber 225 through the through hole 2212 and the connecting plate 2211.

[0045] It further includes: a second gear 223 rotatably mounted on the connecting plate 221, a first gear 222 meshing with the second gear 223, a connecting shaft 224 fixedly mounted on the second gear 223, an air chamber 225 fixedly mounted on the fixed frame 13, and a gas guiding plate 226 fixedly mounted on the air chamber 225. A flow channel 2261 is formed on the gas guiding plate 226. The first gear 222 meshes with the gear ring 227; the gear ring 227 is rotatably connected to the sealing plate 211, the first gear 222 is rotatably mounted on the connecting plate 221, the blade 21 is fixedly connected to the gear ring 227, a transmission shaft fork one 2241 is fixedly mounted on the connecting shaft 224, a universal joint 2242 is fixedly mounted on the transmission shaft fork one 2241, a transmission shaft fork two 2243 is fixedly mounted on the universal joint 2242, and the transmission shaft fork two 2243 is fixedly connected to the gas guiding plate 226.

[0046] At the same time, the gear ring 227 drives the first gear 222 and the second gear 223 to rotate, and through the connecting shaft 224, the transmission shaft fork one 2241, the universal joint 2242, and the transmission shaft fork two 2243 rotate, thereby causing the gas guiding plate 226 to rotate, so as to throw the tail gas from the air chamber 225 into the tank body 1 through the flow channel 2261. Since the gases and tiny particles in the tail gas are subject to different centrifugal forces, the treatment of tiny particles can be effectively achieved. And in the present application, a fixed frame 13 is fixedly mounted on the inner wall of the tank body 1. A dust collection groove 131 is formed on the fixed frame 13, and a dust collection hole 132 is formed on the dust collection groove 131. When the tail gas is thrown out, the tiny particles in the tail gas will be thrown into the dust collection groove 131 and fall into the dust collection hole 132, preventing the tiny particles from being thrown out and then mixed with the tail gas under the drive of the air flow, resulting in a reduction in the treatment effect. And because the dust collection groove 131 is designed as an arc-shaped groove, it can prevent the tiny particles from running out of the dust collection groove 131. Multiple groups of dust collection grooves 131 are provided, ensuring that the tail gas thrown out by the gas guiding plate 226 can be received into the dust collection groove 131, avoiding the contact between the tail gas and the inner wall of the tank body 1, which may cause the particles in the tail gas to adhere to the inner wall of the tank body, making it inconvenient to clean and affecting the use effect of the device.

[0047] As a supplement to the above, a tiny particle adsorption material can be installed on the surface of the blade 21, and filter materials for filtering tiny particles are installed in the air hole one 2111, the air hole two 228, and the through hole 2212 to improve the treatment effect of the particles in the tail gas.

[0048] That is to say, when the tail gas enters the tank body 1, on the one hand, it can drive the blade 21 to rotate, so that the air guide plate 226 rotates to throw the tail gas out of the flow channel 2261, removing the tiny particles in the tail gas. On the other hand, it increases the flow path of the tail gas and filters the tail gas multiple times during the flow of the tail gas, thus realizing the double filtration of the tiny particles in the tail gas and improving the pretreatment effect of the tail gas.

[0049] The tail gas can enter the air chamber 225 only when the air hole one 2111 coincides with the air hole two 228, so as to realize periodic air intake, ensure the treatment effect of the tail gas, and avoid the direct continuous discharge of the tail gas, resulting in the reduction of the filtration effect of the tiny particles.

[0050] In addition, by controlling the gear ratio of the gear one 222 and the gear two 223, the present application can ensure the sufficient rotation speed of the gear two 223 to ensure sufficient centrifugal force. Moreover, the air guide plate 226 is inclined, with high efficiency for the tail gas and better use effect.

[0051] It should be noted that the rotation of the blade 21 depends on the rotating shaft. One end of the rotating shaft is rotatably connected to the tank body 1, and the other end passes through the sealing plate 211 and is fixedly connected to the gear ring 227, thus realizing the effect of the blade 21 driving the gear ring 227 to rotate.

[0052] After the tail gas is pretreated and then denitrified to ensure the denitrification effect. The denitrification mechanism 3 includes: a catalytic layer 31 slidably mounted on the fixed frame 13, a connecting frame 32 fixedly mounted on the catalytic layer 31, a top rod 35 fixedly mounted on the air guide plate 226, a limiting component 34 for limiting the catalytic layer 31, and a denitrification component 33. The catalytic layer 31 is composed of catalytic particles and a frame for carrying the catalytic particles, and the catalytic material is the prior art.

[0053] The denitrification component 33 continuously sprays ammonia into the tank body 1. After the tail gas is discharged from the flow channel 2261, it contacts with ammonia and the catalytic layer 31 for denitrification. When the air guide plate 226 rotates, it can push the catalytic layer 31 to move up and down, making the catalytic particles in the catalytic layer 31 vibrate, so as to avoid the bottom catalytic particles from losing efficacy due to long-term contact with the tail gas, while the upper catalytic particles are not ineffective, resulting in the reduction of the catalytic effect. When the catalytic layer 31 moves, the limiting component 34 can limit the catalytic layer 31 to prevent the catalytic layer 31 from vibrating excessively and causing the catalytic particles to fall out.

[0054] The denitration component 33 includes: a hinge frame 331 fixedly installed on the connecting frame 32, a spray head 332 rotatably installed on the hinge frame 331, and a telescopic rod 333 fixedly installed on the spray head 332; the telescopic rod 333 is composed of a sleeve 3331 fixedly installed on the spray head 332, a first spring 3332 fixedly installed on the sleeve 3331, and a connecting rod 3333 fixedly installed on the first spring 3332. The connecting rod 3333 is rotatably connected to the fixed frame 13, and the spray head 332 is connected to an ammonia storage tank through a hose.

[0055] When the catalytic layer 31 moves, the hinge frame 331 is driven to move through the connecting frame 32, and then the spray head 332 is driven to move. At the same time, the spray head 332 moves and slides on the surface of the connecting rod 3333 through the sleeve 3331, and the first spring 3332 is deformed, realizing the swing of the spray head 332. Under the up and down movement of the catalytic layer 31, the spray head 332 swings reciprocally, improving the mixing effect of ammonia and tail gas. The first spring 3332 can assist the sleeve 3331 and the connecting rod 3333 to reset, facilitating use.

[0056] The limiting component 34 includes: a limiting rod 341 fixedly installed on the catalytic layer 31, and a second spring 343 for energy storage during the sliding process of the catalytic layer 31. Both ends of the second spring 343 are fixedly installed with mounting plates 342, and the two groups of mounting plates 342 are respectively fixedly connected to the limiting rod 341 and the fixed frame 13.

[0057] When the catalytic layer 31 moves, it can also drive the limiting rod 341 to move. When the limiting rod 341 moves, the second spring 343 is compressed through the mounting plate 342, thereby avoiding excessive vibration of the catalytic layer 31 and preventing the catalytic particles in the catalytic layer 31 from falling off.

[0058] However, after the particulate matter in the tail gas is thrown into the dust collection tank 131 by the air guide plate 226, the particles may adhere to the inner wall of the dust collection tank 131, affecting the collection effect of the dust collection tank 131 on the particles. One end of the limiting rod 341 of the present application is fixedly installed with a dust removal block 344. The dust removal block 344 is provided with a dust outlet 3441. A convex rod 133 is fixedly installed on the dust collection hole 132. The position of the dust outlet 3441 corresponds to the convex rod 133. The dust removal block 344 cooperates with the dust collection tank 131. In addition, it can drive the dust removal block 344 to move in the dust collection tank 131 and scrape off the particles adhered to the side wall of the dust collection tank 131. The scraped particles fall into the dust collection hole 132 through the dust outlet 3441. When the dust removal block 344 moves into the dust collection hole 132, the convex rod 133 will enter the dust outlet 3441 and can eject the particles in the dust outlet 3441 to avoid blockage of the dust outlet 3441, thereby realizing the cleaning of the particles in the dust collection tank 131, improving the treatment effect on the particles in the tail gas, and having a good use effect.

[0059] That is to say, the air guide plate 226 can not only improve the treatment effect of particles in the tail gas, but also drive the ejector rod 35 to move, and through its inclined setting, the ejector rod 35 can push the catalytic layer 31 to lift and lower, with good use effect. The ejector rod 35 can, on the one hand, push the catalytic layer 31 to move up and down, making the catalytic particles in the catalytic layer 31 vibrate, so as to prevent the bottom catalytic particles from losing efficacy due to long-term contact with the tail gas while the upper catalytic particles have not lost efficacy, resulting in a reduction in the catalytic effect. On the other hand, it drives the dust removal block 344 to move inside the dust collection tank 131 through the limit rod 341, can scrape off the particles adhered to the inner wall of the dust removal tank, and enter the dust collection hole 132 through the dust outlet 3441, with good use effect. And it can also drive the spray head 332 to swing and blow ammonia into the tail gas, making the denitrification effect on the tail gas better.

[0060] Finally, it should be noted that the rotation speed of the air guide plate 226 is related to the flow rate of the tail gas. That is to say, the higher the speed of the tail gas entering the tank body 1, the greater the centrifugal force of the air guide plate 226 on the tail gas, the better the cleaning effect on the particles in the tail gas, the faster the moving speed of the catalytic layer 31, the higher the cleaning frequency of the dust collection tank 131, the faster the swinging speed of the spray head 332, and the corresponding better denitrification effect.

[0061] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the records in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, details are not described here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0062] It should be understood that for those of ordinary skill in the art, improvements or changes can be made according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims

1. A gas generator set tail gas denitrification device, characterized in that: include: A tank body, a dust removal mechanism for pre-treating the exhaust gas, and a denitrification mechanism for denitrifying the exhaust gas; The pretreatment mechanism comprises: a blade rotatably mounted on the tank body, a sealing plate fixedly mounted on the tank body, an air hole 1 opened on the sealing plate, and a rotating assembly for throwing out the exhaust gas; The rotating assembly includes: a connecting plate, a second gear rotatably mounted on the connecting plate, a first gear meshing with the second gear, a connecting shaft fixedly mounted on the second gear, an air chamber fixedly mounted on the fixing frame, and an air guide plate fixedly mounted on the air chamber; The air guide plate is provided with a flow channel, the connecting plate is fixedly provided with a gear ring, the gear ring is provided with a second air hole, and the gear 1 is meshed with the gear ring; The denitration mechanism comprises: a catalytic layer slidably mounted on the fixing frame, a connecting frame fixedly mounted on the catalytic layer, a top rod fixedly mounted on the air guide plate, a limiting component for limiting the catalytic layer, and a denitration component.

2. A gas generator set tail gas denitration device as claimed in claim 1, characterized in that: A fixing frame is fixedly installed on the inner wall of the tank body, a dust collecting groove is provided on the fixing frame, and a dust collecting hole is provided on the dust collecting groove.

3. A gas generator set tail gas denitration device as claimed in claim 1, characterized in that: The gear ring is rotatably connected to the sealing plate, and the blades are fixedly connected to the gear ring.

4. A gas generator set tail gas denitration device as claimed in claim 1, characterized in that: The gear is rotatably mounted on a connecting plate, a connecting plate is fixedly connected to the connecting plate, the connecting plate is fixedly connected to a fixing frame, and a through hole is provided on the connecting plate.

5. The exhaust denitration device for a gas-fired generator set according to claim 1, characterized in that: A transmission shaft fork 1 is fixedly mounted on the connecting shaft, a universal joint is fixedly mounted on the transmission shaft fork 1, a transmission shaft fork 2 is fixedly mounted on the universal joint, and the transmission shaft fork 2 is fixedly connected to the air guide plate.

6. A gas generator set tail gas denitration device as claimed in claim 1, characterized in that: The denitration component comprises: an articulated frame fixedly mounted on the connecting frame, a spray head rotatably mounted on the articulated frame, and a telescopic rod fixedly mounted on the spray head.

7. A gas generator set tail gas denitration device as claimed in claim 6, characterized in that: The telescopic rod is composed of a sleeve fixedly mounted on the nozzle, a spring 1 fixedly mounted on the sleeve, and a connecting rod fixedly mounted on the spring 1, and the connecting rod is rotatably connected to a fixing frame.

8. The exhaust denitration device for a gas-fired generator set according to claim 1, characterized in that: The limiting assembly includes: a limiting rod fixedly installed on the catalyst layer, and a second spring for storing energy during the sliding process of the catalyst layer. Both ends of the second spring are fixedly installed with mounting plates, and two groups of the mounting plates are fixedly connected to the limiting rod and the fixing frame respectively.

9. A gas generator set tail gas denitration device as claimed in claim 2, characterized in that: A dust removal block is fixedly mounted on one end of the limiting rod, a dust outlet is provided on the dust removal block, a convex rod is fixedly mounted on the dust collecting hole, the position of the dust outlet corresponds to the convex rod, and the dust removal block cooperates with the dust collecting groove.

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