Tail gas purification device and purification method for diesel generating set

Abstract

The invention belongs to the technical field of diesel generator tail gas treatment, and discloses a diesel generator set tail gas purification device and method.The device comprises a spraying assembly, a catalysis assembly is installed at the top of the spraying assembly, a filtering assembly is installed on the inner wall of the catalysis assembly, and a waste discharging assembly is installed on the outer wall of the catalysis assembly; the design that a gear transmission system is combined with a cleaning roller realizes automatic cleaning of a conical net, the cleaning roller synchronously rotates along with the conical net, bristles penetrate into meshes to clean blocked particles, the problem that a traditional fixed filter net is easy to block is avoided, the service life of a filter element is prolonged, the maintenance cost is reduced, self-cleaning of the conical net is realized, and the service life of the filter element is prolonged. The tail gas purification device is simple in structure and convenient for smooth flow of tail gas, realizes automatic collection and separation of particulate matters by utilizing suction force and pressure difference generated by vertical reciprocating motion of the piston disc, effectively removes the particulate matters in the tail gas, reduces emission of harmful substances, and improves purification efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of diesel generator exhaust gas treatment, and more specifically, to an exhaust gas purification device and a purification method for a diesel generator set. Background Art

[0002] A diesel generator set is a power supply device that uses a diesel engine as the prime mover to drive a synchronous generator to generate electricity. It is a power generation device that has the advantages of quick start-up, easy operation and maintenance, low investment, and strong adaptability to the environment. A large amount of exhaust gas is generated during the operation of the diesel generator set, which requires a purification device to purify it.

[0003] The diesel generator exhaust purification device in the prior art relies on a built-in filter to capture particulate matter in the exhaust gas to achieve the purpose of purifying the exhaust gas. Although this method improves the quality of exhaust emissions to a certain extent, its inherent limitations are also becoming increasingly prominent. In particular, these filters lack the necessary flexibility and self-cleaning ability. As the particulate matter in the exhaust gas continues to accumulate, it is very easy to cause the filter to be blocked, thereby hindering the smooth flow of the exhaust gas. In view of this, we propose a diesel generator exhaust purification device and purification method. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a diesel generator set exhaust gas purification device and purification method, which realizes the automatic cleaning of the cone net, the cleaning roller rotates synchronously with the cone net, and the bristles penetrate into the mesh to clean the clogged particles, avoiding the problem of easy clogging of the traditional fixed filter net, extending the service life of the filter element, reducing maintenance costs, realizing the self-cleaning of the cone net, and facilitating the smooth flow of exhaust gas.

[0005] In order to solve the above technical problems, the present invention proposes a diesel generator exhaust purification device, including a spray assembly, a catalytic assembly is installed on the top of the spray assembly, a filter assembly is installed on the inner wall of the catalytic assembly, and a waste discharge assembly is installed on the outer wall of the catalytic assembly;

[0006] The spray assembly comprises a mounting frame, the inner wall of the mounting frame is fixedly connected to a spray box, and the bottom of the spray box is fixedly connected to a water storage pipe;

[0007] The catalytic assembly comprises a catalytic box, and a guide sleeve is fixedly connected to the inner wall of the catalytic box;

[0008] The filter assembly includes a base, the bottom of the base is fixedly connected to the mounting frame, the base is located inside the water storage pipe, the top of the base is fixedly connected to a support shaft, the top of the support shaft passes through the water storage pipe, the spray box and extends to the inside of the catalyst box, the outer wall of the support shaft is provided with two annular grooves, and the inner walls of the two annular grooves are rotatably connected to a rotating sleeve;

[0009] The end of the support shaft is rotatably connected with the first cone net, the second cone net and the third cone net in sequence from bottom to top, a support ring is provided above the support shaft, the outer wall of the support ring is fixedly connected to the inner wall of the catalyst box, the top of the support ring is fixedly connected to the bottom of the guide sleeve, and a plurality of rotation grooves are provided at the bottom of the support ring, and the tops of the first cone net, the second cone net and the third cone net are rotatably connected to the corresponding rotation grooves respectively;

[0010] The circumferential wall of the third cone net is fixedly connected to the first gear ring, the circumferential wall of the second cone net is respectively fixedly connected to the second gear ring and the third gear ring, the circumferential wall of the first cone net is fixedly connected to the fourth gear ring, an annular sealing chamber is formed between the support ring, the guide sleeve and the catalyst box, a motor is arranged in the sealing chamber, the motor is fixedly connected to the inner wall of the catalyst box, two driving shafts are arranged between the first cone net and the second cone net and the second cone net and the third cone net, the tops of the driving shafts respectively pass through the support rings and are rotatably connected thereto, the output end of the motor is fixedly connected to one of the driving shafts, the outer walls of the driving shafts are fixedly connected to gears, the gears located between the first cone net and the second cone net are respectively meshed with the third gear ring and the fourth gear ring, the gears located between the second cone net and the third cone net are respectively meshed with the second gear ring and the first gear ring;

[0011] Two cleaning rollers are arranged between the first cone net and the second cone net and between the second cone net and the third cone net. The upper shaft ends of the cleaning rollers are connected to the corresponding driving shafts through universal joints, and the lower shaft ends of the cleaning rollers are rotatably connected to the corresponding rotating sleeves.

[0012] Preferably, an exhaust fan is installed in the top tube of the spray box, a plurality of spray heads are installed at equal intervals on the inner wall of the spray box, a drain pipe is fixedly connected to the outer wall of the water storage pipe near the bottom, and an exhaust pipe is fixedly connected to the outer wall of the water storage pipe near the top.

[0013] Preferably, the outer wall of the catalyst box is fixedly connected to the mounting frame, a mounting hole is opened on the outer wall of the catalyst box, and two connecting frames are fixedly connected to the outer wall of the catalyst box.

[0014] Preferably, an air intake pipe is fixedly connected to the top of the catalyst box, the guide sleeve has a decreasing diameter from top to bottom, a plurality of catalyst blocks are fixedly connected to the inner wall of the catalyst box, a sealing plate is threadedly connected to the bottom of the inner wall of the catalyst box, and the sealing plate is connected to the top pipe of the spray box.

[0015] Preferably, the inner walls of the two annular grooves are each provided with a plurality of dust exhaust holes, the inner wall of the support shaft is provided with a dust accumulation cavity, the top of the dust accumulation cavity is provided with a material guide hole, the dust exhaust holes respectively extend into the material guide holes, the outer wall of the support shaft is fixedly connected with a dust exhaust pipe, the end of the dust exhaust pipe extends into the dust accumulation cavity, and the end of the dust exhaust pipe passes through the catalyst box and extends to the outside thereof.

[0016] Preferably, the waste discharge assembly includes a first branch pipe, the first branch pipe is fixedly connected to the connecting frame, the bottom of the first branch pipe is fixedly connected to the second branch pipe, the lower section of the second branch pipe is bent outward to form an inclined structure, the inner wall of the first branch pipe is rotatably connected to a rotating shaft, the top of the rotating shaft passes through the first branch pipe and extends above it, a protrusion is fixedly connected to the circumferential outer wall of the rotating shaft, the circumferential outer wall of the rotating shaft is provided with a mounting sleeve, the inner wall of the mounting sleeve is provided with a cam groove, the end of the protrusion is slidably connected to the inner wall of the cam groove, the outer wall of the mounting sleeve is fixedly connected to a piston disk, the inner wall of the first branch pipe is provided with two movable grooves, and the outer wall protrusion of the piston disk is slidably connected to the inner wall of the movable groove.

[0017] Preferably, a connecting rod is fixedly connected to the bottom of the rotating shaft, a sliding cavity is defined in the inner wall of the connecting rod, two limit grooves are defined in the inner wall of the sliding cavity, a straight rod is slidably connected to the bottom of the connecting rod, the top of the straight rod extends into the inside of the sliding cavity, a first sliding sleeve is slidably connected to the inner wall of the sliding cavity, the inner wall of the first sliding sleeve is fixedly connected to the straight rod, two limit blocks are fixedly connected to the circumferential outer wall of the first sliding sleeve, the limit blocks are respectively slidably connected to the corresponding limit grooves, a first spring is sleeved on the outer wall of the straight rod, a plug is fixedly connected to the bottom of the straight rod, the conical tip of the plug is arranged downward, one end of the first spring is fixedly connected to the connecting rod, and the other end of the first spring is fixedly connected to the plug.

[0018] Preferably, a material guide sleeve is fixedly connected to the inner wall of the first branch pipe, and the diameter of the material guide sleeve decreases from top to bottom, and an air intake pipe is fixedly connected to the outer wall of the second branch pipe, and the end of the air intake pipe is fixedly connected to the dust exhaust pipe, and the end of the air intake pipe extends to the inside of the second branch pipe, and the outer wall of the second branch pipe is provided with two grooves, and the inner walls of the two grooves are fixedly connected to sliding rods, and the outer walls of the sliding rods are sleeved with second springs, and the outer walls of the sliding rods are slidably connected to supporting arms, and the outer wall of the air intake pipe is slidably connected to a sealing sleeve, and the inner wall of the sealing sleeve is fixedly connected to the supporting arm, and the diameter of the sealing sleeve increases from top to bottom, and the diameter of the bottom of the sealing sleeve is larger than the diameter of the bottom of the material guide sleeve, one end of the second spring is fixedly connected to the supporting arm, and the other end of the second spring is fixedly connected to the air intake pipe.

[0019] Preferably, a convex ring is formed on the inner wall of the inclined section of the second branch pipe, and the inner wall of the second branch pipe is slidably connected to a collecting tube, and the inner wall of the collecting tube is fixedly connected to a second filter screen, and the outer wall of the inclined section of the second branch pipe is fixedly connected to a return pipe, and the return pipe end extends into the catalyst box and is fixedly connected thereto, and the inner wall of the return pipe end is fixedly connected to the first filter screen, and the bottom of the collecting tube is fixedly connected to a second sliding sleeve, and the inner wall of the second sliding sleeve is slidably connected to a connecting shaft, and the outer wall of the connecting shaft is sleeved with a third spring, and the bottom of the connecting shaft is rotatably connected to a threaded cover, and the threaded cover is threadedly connected to the inclined section of the second branch pipe, one end of the third spring abuts against the second sliding sleeve, and the other end of the third spring abuts against the threaded cover, and the waste discharge assembly also includes a first synchronous wheel and a second synchronous wheel, the first synchronous wheel is fixedly connected to the rotating shaft, and the second synchronous wheel is fixedly connected to the corresponding driving shaft, and the first synchronous wheel and the second synchronous wheel are connected by a synchronous belt transmission.

[0020] A purification method for an exhaust gas purification device of a diesel generator set comprises the following steps:

[0021] S1. Exhaust gas is discharged into the catalyst box through the intake pipe, and the guide sleeve collects the exhaust gas from top to bottom and discharges it downward quickly. The exhaust gas is filtered from top to bottom through the third cone net, the second cone net and the first cone net in sequence, so that particulate matter in the exhaust gas can be removed. The filtered exhaust gas passes through the catalyst block inside the catalyst box and reacts with the exhaust gas again. The exhaust gas of the catalytic reaction is discharged into the spray box through the exhaust fan. The external water pump injects water into the spray head, and the water is sprayed out through the spray head, so that the residual particles in the exhaust gas can be removed. The treated exhaust gas and spray water enter the water storage pipe, and the spray water is discharged through the drain pipe, and the purified exhaust gas is poured out through the exhaust pipe;

[0022] S2, the motor drives one of the gears to rotate through the driving shaft, and the gears drive the third gear ring and the fourth gear ring to rotate respectively, and the first cone net and the second cone net are driven to rotate through the third gear ring and the fourth gear ring, and the second gear ring on the second cone net drives the first gear ring to rotate through the gear, and drives the third cone net to rotate through the first gear ring. When the gears rotate, the corresponding cleaning rollers are driven to rotate through the universal joints, and the cleaning rollers can rotate synchronously with the first cone net, the second cone net and the third cone net. During the rotation process, the bristles of the cleaning rollers will be inserted into the meshes of the first cone net, the second cone net and the third cone net, so that the blocked particles can be cleaned up, thereby improving the filtering efficiency of the first cone net, the second cone net and the third cone net;

[0023] S3. The cleaned particles will slide into the dust discharge hole on the support shaft, and enter the dust storage chamber through the dust discharge hole and the material guide hole. When the motor rotates, the second synchronous wheel drives the first synchronous wheel to rotate rapidly, the first synchronous wheel drives the rotating shaft to rotate, and the rotating shaft drives the convex block to rotate. The convex block slides along the cam groove in the mounting sleeve, so that the mounting sleeve can drive the piston disc to move up and down reciprocatingly.

[0024] S4, when the piston disc slides upward, suction is generated inside the first branch pipe, the plug pushes the straight rod to move, the straight rod drives the first sliding sleeve to slide along the inner wall of the sliding cavity, the first spring is compressed, the plug moves out of the suction pipe, the piston disc continues to slide upward, suction is generated inside the suction pipe, so that the dust inside the dust accumulation cavity can be sucked out into the first branch pipe;

[0025] S5. When the piston disc slides downward, the plug is blocked at the top of the intake pipe under the elastic force of the first spring, and the sealing sleeve slides downward along the intake pipe under the action of air pressure. The sealing sleeve drives the supporting arm to slide along the slide rod and squeezes the second spring. At this time, the particles falling on the guide sleeve will enter the second branch pipe and fall into the collection tube, and the small amount of exhaust gas that follows the particles into the second branch pipe will enter the catalyst box again through the return pipe.

[0026] S6. The collecting tube can be disassembled by unscrewing the threaded cover from the inside of the second branch pipe, so that the particles inside can be removed.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. In the present invention, the gear transmission system is combined with the cleaning roller design to realize automatic cleaning of the cone net. The cleaning roller rotates synchronously with the cone net, and the bristles penetrate into the mesh to clean the clogged particles, thereby avoiding the problem of easy clogging of the traditional fixed filter net, extending the service life of the filter element, reducing maintenance costs, realizing self-cleaning of the cone net, facilitating the smooth flow of exhaust gas, and utilizing the suction and pressure difference generated by the up and down reciprocating motion of the piston disc to realize automatic collection and separation of particles.

[0029] 2. In the present invention, the particulate matter in the exhaust gas is effectively removed through the step-by-step filtration of the cone net, ensuring that the exhaust gas has been greatly purified before entering the catalyst block. The catalyst block further reacts with the exhaust gas, reducing the emission of harmful substances and improving the purification efficiency. Through the carefully designed intake pipe and material guide system, the particulate matter is effectively collected in the collection cylinder, and a small amount of exhaust gas is recycled through the return air pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0033] Figure 3 It is a schematic diagram of the overall structure of the spray assembly of the present invention;

[0034] Figure 4 It is a schematic diagram of the installation structure of the sprinkler head of the present invention;

[0035] Figure 5 It is a schematic diagram of the overall structure of the catalytic assembly of the present invention;

[0036] Figure 6 It is a schematic diagram of the internal structure of the catalyst box of the present invention;

[0037] Figure 7 It is a schematic diagram of the overall structure of the filter assembly of the present invention;

[0038] Figure 8 It is a partial structural schematic diagram of the filter assembly of the present invention;

[0039] Fig. 9 It is a schematic diagram of the installation structure of the motor of the present invention;

[0040] Fig.10 For the present invention Fig. 9 The enlarged view of point A in the middle;

[0041] Fig.11 It is a schematic diagram of the overall structure of the waste discharge assembly of the present invention;

[0042] Fig.12 A schematic diagram of the internal structure of the waste discharge assembly of the present invention;

[0043] Fig.13 It is a schematic diagram of the installation structure of the sealing sleeve of the present invention;

[0044] Fig.14 This is a schematic diagram of the internal structure of the mounting sleeve of the present invention;

[0045] Fig.15 For the present invention Fig.13 The enlarged view of point B in the middle;

[0046] Fig.16 It is a schematic diagram of the installation structure of the connecting shaft of the present invention;

[0047] Fig.17 For the present invention Fig.12 Enlarged view of point C in the middle.

[0048] Explanation of the reference numerals in the figure: 1. Spray assembly; 101. Mounting frame; 102. Spray box; 103. Exhaust fan; 104. Spray head; 105. Water storage pipe; 106. Exhaust pipe; 107. Drain pipe; 2. Catalytic assembly; 201. Catalytic box; 202. Mounting hole; 203. Connecting frame; 204. Catalytic block; 205. Inlet pipe; 206. Guide sleeve; 207. Sealing plate; 3. Filter assembly; 301. Base; 30 2. Support shaft; 303. Dust exhaust pipe; 304. Rotating groove; 305. Support ring; 306. First cone net; 307. Second cone net; 308. Third cone net; 309. Drive shaft; 310. Gear; 311. Motor; 312. Cleaning roller; 313. First gear ring; 314. Second gear ring; 315. Third gear ring; 316. Fourth gear ring; 317. Dust storage chamber; 318. Material guide hole; 319. Annular groove; 32 0, dust discharge hole; 321, rotating sleeve; 4, waste discharge assembly; 401, first branch pipe; 402, second branch pipe; 403, rotating shaft; 404, mounting sleeve; 405, cam groove; 406, bump; 407, piston plate; 408, connecting rod; 409, sliding cavity; 410, limiting groove; 411, straight rod; 412, first spring; 413, first sliding sleeve; 414, limiting block; 415, plug; 416, guide sleeve; 4 17. Intake pipe; 418. Sealing sleeve; 419. Groove; 420. Sliding rod; 421. Support arm; 422. Second spring; 423. Return pipe; 424. First filter screen; 425. Convex ring; 426. Collecting cylinder; 427. Second filter screen; 428. Second sliding sleeve; 429. Threaded cover; 430. Connecting shaft; 431. Third spring; 432. First synchronous wheel; 433. Second synchronous wheel; 434. Moving groove. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the implementation mode of the present application clearer, the technical solution in the implementation mode of the present application will be clearly and completely described in combination with the drawings in the implementation mode of the present application. Obviously, the described implementation mode is a part of the implementation mode of the present application, not all the implementation modes. Based on the implementation mode in the present application, all other implementation modes obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application. The specific implementation modes of the present invention are described in detail in combination with the drawings in the specification.

[0050] Embodiment 1:

[0051] like Figure 1-Figure 4 As shown, a diesel generator exhaust purification device includes a spray assembly 1, and the spray assembly 1 includes a mounting frame 101. A spray box 102 is fixedly connected to the inner wall of the mounting frame 101, a water storage pipe 105 is fixedly connected to the bottom of the spray box 102, an exhaust fan 103 is installed in the top pipe of the spray box 102, a plurality of spray heads 104 are installed at equal intervals on the inner wall of the spray box 102, a drain pipe 107 is fixedly connected to the outer wall of the water storage pipe 105 near the bottom, and an exhaust pipe 106 is fixedly connected to the outer wall of the water storage pipe 105 near the top.

[0052] Embodiment 2:

[0053] This embodiment provides a diesel generator exhaust purification device, which further includes the following structure based on the first embodiment:

[0054] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a catalytic assembly 2 is installed on the top of the spray assembly 1, and the catalytic assembly 2 includes a catalytic box 201, the inner wall of the catalytic box 201 is fixedly connected to a guide sleeve 206, the outer wall of the catalytic box 201 is fixedly connected to the mounting frame 101, the outer wall of the catalytic box 201 is provided with a mounting hole 202, and the outer wall of the catalytic box 201 is fixedly connected to two connecting frames 203;

[0055] An air inlet pipe 205 is fixedly connected to the top of the catalyst box 201, and the diameter of the guide sleeve 206 decreases from top to bottom. A plurality of catalyst blocks 204 are fixedly connected to the inner wall of the catalyst box 201. A sealing plate 207 is threadedly connected to the bottom of the inner wall of the catalyst box 201, and the sealing plate 207 is connected to the top pipe of the spray box 102.

[0056] Embodiment three:

[0057] This embodiment provides a diesel generator exhaust purification device, which further includes the following structure based on the second embodiment:

[0058] like Figure 1 , Figure 2 and Figure 7-Figure 10 As shown, a filter assembly 3 is installed on the inner wall of the catalyst assembly 2, and the filter assembly 3 includes a base 301. The bottom of the base 301 is fixedly connected to the mounting frame 101, and the base 301 is located inside the water storage pipe 105. The top of the base 301 is fixedly connected to a support shaft 302. The top of the support shaft 302 passes through the water storage pipe 105 and the spray box 102 and extends to the inside of the catalyst box 201. Two annular grooves 319 are provided on the outer wall of the support shaft 302, and the inner walls of the two annular grooves 319 are rotatably connected to a rotating sleeve 321.

[0059] The end of the support shaft 302 is rotatably connected with the first cone net 306, the second cone net 307 and the third cone net 308 from bottom to top, and a support ring 305 is provided above the support shaft 302. The outer wall of the support ring 305 is fixedly connected to the inner wall of the catalyst box 201, and the top of the support ring 305 is fixedly connected to the bottom of the guide sleeve 206. A plurality of rotation grooves 304 are provided at the bottom of the support ring 305, and the tops of the first cone net 306, the second cone net 307 and the third cone net 308 are rotatably connected to the corresponding rotation grooves 304 respectively.

[0060] The circumferential wall of the third cone net 308 is fixedly connected to the first gear ring 313, the circumferential wall of the second cone net 307 is respectively fixedly connected to the second gear ring 314 and the third gear ring 315, the circumferential wall of the first cone net 306 is fixedly connected to the fourth gear ring 316, an annular sealing cavity is formed between the support ring 305, the guide sleeve 206 and the catalyst box 201, and a motor 311 is arranged in the sealing cavity, and the motor 311 is fixedly connected to the inner wall of the catalyst box 201. Two driving shafts 309 are provided between the first cone net 306 and the second cone net 307, the tops of the driving shafts 309 respectively penetrate the supporting rings 305 and are rotatably connected thereto, the output end of the motor 311 is fixedly connected to one of the driving shafts 309, and the outer walls of the driving shafts 309 are fixedly connected with gears 310, the gears 310 located between the first cone net 306 and the second cone net 307 are respectively meshed with the third gear ring 315 and the fourth gear ring 316, and the gears 310 located between the second cone net 307 and the third cone net 308 are respectively meshed with the second gear ring 314 and the first gear ring 313.

[0061] Two cleaning rollers 312 are provided between the first cone net 306 and the second cone net 307 and between the second cone net 307 and the third cone net 308 . The upper shaft ends of the cleaning rollers 312 are connected to the corresponding driving shafts 309 through universal joints, and the lower shaft ends of the cleaning rollers 312 are rotatably connected to the corresponding rotating sleeves 321 .

[0062] The inner walls of the two annular grooves 319 are each provided with a plurality of dust exhaust holes 320, the inner wall of the support shaft 302 is provided with a dust accumulation chamber 317, the top of the dust accumulation chamber 317 is provided with a material guide hole 318, the dust exhaust holes 320 extend to the inside of the material guide hole 318 respectively, the outer wall of the support shaft 302 is fixedly connected with a dust exhaust pipe 303, the end of the dust exhaust pipe 303 extends into the dust accumulation chamber 317, and the end of the dust exhaust pipe 303 passes through the catalyst box 201 and extends to the outside thereof.

[0063] Embodiment 4:

[0064] This embodiment provides a diesel generator exhaust purification device, which further includes the following structure based on the third embodiment:

[0065] like Figure 1 , Figure 2 and Figure 11-Figure 17As shown, a waste discharge assembly 4 is installed on the outer wall of the catalytic assembly 2, and the waste discharge assembly 4 includes a first branch pipe 401, the first branch pipe 401 is fixedly connected to the connecting frame 203, the second branch pipe 402 is fixedly connected to the bottom of the first branch pipe 401, the lower section of the second branch pipe 402 is bent outward to form an inclined structure, the inner wall of the first branch pipe 401 is rotatably connected to a rotating shaft 403, the top of the rotating shaft 403 passes through the first branch pipe 401 and extends above it, a convex block 406 is fixedly connected to the circumferential outer wall of the rotating shaft 403, a mounting sleeve 404 is sleeved on the circumferential outer wall of the rotating shaft 403, a cam groove 405 is provided on the inner wall of the mounting sleeve 404, the end of the convex block 406 is slidably connected to the inner wall of the cam groove 405, a piston disc 407 is fixedly connected to the outer wall of the mounting sleeve 404, two movable grooves 434 are provided on the inner wall of the first branch pipe 401, and the outer wall protrusion of the piston disc 407 is slidably connected to the inner wall of the movable groove 434.

[0066] A connecting rod 408 is fixedly connected to the bottom of the rotating shaft 403, a sliding cavity 409 is provided on the inner wall of the connecting rod 408, and two limiting grooves 410 are provided on the inner wall of the sliding cavity 409. A straight rod 411 is slidably connected to the bottom of the connecting rod 408, and the top of the straight rod 411 extends into the sliding cavity 409. A first sliding sleeve 413 is slidably connected to the inner wall of the sliding cavity 409, and the inner wall of the first sliding sleeve 413 is fixedly connected to the straight rod 411. Two limiting blocks 414 are fixedly connected to the circumferential outer wall of the first sliding sleeve 413, and the limiting blocks 414 are respectively slidably connected to the corresponding limiting grooves 410. A first spring 412 is sleeved on the outer wall of the straight rod 411, and a plug 415 is fixedly connected to the bottom of the straight rod 411, and the conical tip of the plug 415 is arranged downward, one end of the first spring 412 is fixedly connected to the connecting rod 408, and the other end of the first spring 412 is fixedly connected to the plug 415.

[0067] The inner wall of the first branch pipe 401 is fixedly connected to a guide sleeve 416, and the diameter of the guide sleeve 416 decreases from top to bottom. The outer wall of the second branch pipe 402 is fixedly connected to an air intake pipe 417, and the end of the air intake pipe 417 is fixedly connected to the dust exhaust pipe 303. The end of the air intake pipe 417 extends to the inside of the second branch pipe 402. The outer wall of the second branch pipe 402 is provided with two grooves 419, and the inner walls of the two grooves 419 are fixedly connected to a slide rod 420, and the outer wall of the slide rod 420 is sleeved A second spring 422 is provided, and the outer wall of the sliding rod 420 is slidably connected to a supporting arm 421, and the outer wall of the suction pipe 417 is slidably connected to a sealing sleeve 418, and the inner wall of the sealing sleeve 418 is fixedly connected to the supporting arm 421. The diameter of the sealing sleeve 418 increases from top to bottom, and the bottom diameter of the sealing sleeve 418 is larger than the bottom diameter of the guide sleeve 416. One end of the second spring 422 is fixedly connected to the supporting arm 421, and the other end of the second spring 422 is fixedly connected to the suction pipe 417.

[0068] The inner wall of the inclined section of the second branch pipe 402 is convexly formed with a convex ring 425, the inner wall of the second branch pipe 402 is slidably connected to a collecting tube 426, the inner wall of the collecting tube 426 is fixedly connected to a second filter screen 427, the outer wall of the inclined section of the second branch pipe 402 is fixedly connected to a return pipe 423, the end of the return pipe 423 extends into the catalyst box 201 and is fixedly connected thereto, the inner wall of the end of the return pipe 423 is fixedly connected to a first filter screen 424, the bottom of the collecting tube 426 is fixedly connected to a second sliding sleeve 428, the inner wall of the second sliding sleeve 428 is slidably connected to a connecting shaft 430, and the outer wall of the connecting shaft 430 A third spring 431 is sleeved, and a threaded cover 429 is rotatably connected to the bottom of the connecting shaft 430. The threaded cover 429 is threadedly connected to the inclined section of the second branch pipe 402. One end of the third spring 431 abuts against the second sliding sleeve 428, and the other end of the third spring 431 abuts against the threaded cover 429. The waste discharge component 4 also includes a first synchronous wheel 432 and a second synchronous wheel 433. The first synchronous wheel 432 is fixedly connected to the rotating shaft 403, and the second synchronous wheel 433 is fixedly connected to the corresponding driving shaft 309. The first synchronous wheel 432 and the second synchronous wheel 433 are connected through a synchronous belt transmission.

[0069] Working principle: exhaust gas is discharged into the catalyst box 201 through the intake pipe 205, and the guide sleeve 206 concentrates the exhaust gas from top to bottom and discharges it downward quickly. The exhaust gas is filtered from top to bottom through the third cone net 308, the second cone net 307 and the first cone net 306, so as to remove particulate matter in the exhaust gas. The filtered exhaust gas passes through the catalyst block 204 inside the catalyst box 201 and reacts with the exhaust gas again. The exhaust gas of the catalytic reaction is discharged into the spray box 102 through the exhaust fan 103. The external water pump injects water into the spray head 104, and the water is sprayed out through the spray head 104, so as to remove the residual particles in the exhaust gas. The treated exhaust gas and spray water enter the water storage pipe 105, and the spray water is discharged through the drain pipe 107. The purified exhaust gas is poured out through the exhaust pipe 106.

[0070] The motor 311 drives one of the gears 310 to rotate through the driving shaft 309, and the gear 310 drives the third gear ring 315 and the fourth gear ring 316 to rotate respectively, and drives the first cone net 306 and the second cone net 307 to rotate through the third gear ring 315 and the fourth gear ring 316, and the second gear ring 314 on the second cone net 307 drives the first gear ring 313 to rotate through the gear 310, and drives the third cone net 308 to rotate through the first gear ring 313. When the gear 310 rotates, the corresponding cleaning rollers 312 are driven to rotate through the universal joints, and the cleaning rollers 312 can rotate synchronously with the first cone net 306, the second cone net 307 and the third cone net 308. During the rotation process, the bristles of the cleaning rollers 312 will be inserted into the meshes of the first cone net 306, the second cone net 307 and the third cone net 308, so that the blocked particles can be cleaned up, thereby improving the filtering efficiency of the first cone net 306, the second cone net 307 and the third cone net 308;

[0071] The cleaned particles will slide into the dust discharge hole 320 on the support shaft 302, and enter the dust storage chamber 317 through the dust discharge hole 320 and the guide hole 318. When the motor 311 rotates, the second synchronous wheel 433 drives the first synchronous wheel 432 to rotate rapidly, the first synchronous wheel 432 drives the rotating shaft 403 to rotate, and the rotating shaft 403 drives the protrusion 406 to rotate. The protrusion 406 slides along the cam groove 405 in the installation sleeve 404, so that the installation sleeve 404 can drive the piston plate 407 to reciprocate up and down;

[0072] When the piston plate 407 slides upward, suction is generated inside the first branch pipe 401, the plug 415 pushes the straight rod 411 to move, and the straight rod 411 drives the first sliding sleeve 413 to slide along the inner wall of the sliding cavity 409, the first spring 412 is compressed, the plug 415 moves out of the suction pipe 417, and the piston plate 407 continues to slide upward, and suction is generated inside the suction pipe 417, so that the dust inside the dust storage cavity 317 can be sucked out into the first branch pipe 401;

[0073] When the piston disc 407 slides downward, the plug 415 is blocked at the top of the air intake pipe 417 by the elastic force of the first spring 412, and the sealing sleeve 418 slides downward along the air intake pipe 417 under the action of air pressure. The sealing sleeve 418 drives the supporting arm 421 to slide along the slide rod 420 and squeezes the second spring 422. At this time, the particles falling on the guide sleeve 416 will enter the second branch pipe 402 and fall into the collecting tube 426, and the small amount of exhaust gas that follows the particles into the second branch pipe 402 will enter the catalyst box 201 again through the return pipe 423.

[0074] By unscrewing the threaded cover 429 from the inside of the second branch pipe 402, the collecting tube 426 can be disassembled, so that the particles inside can be removed.

[0075] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A diesel generator exhaust purification device, comprising a spray assembly (1), characterized in that: A catalytic component (2) is installed on the top of the spray component (1), a filter component (3) is installed on the inner wall of the catalytic component (2), and a waste discharge component (4) is installed on the outer wall of the catalytic component (2); The spray assembly (1) comprises a mounting frame (101), the inner wall of the mounting frame (101) being fixedly connected to a spray box (102), and the bottom of the spray box (102) being fixedly connected to a water storage pipe (105); The catalytic assembly (2) comprises a catalytic box (201), and a guide sleeve (206) is fixedly connected to the inner wall of the catalytic box (201); The filter assembly (3) comprises a base (301), the bottom of the base (301) is fixedly connected to the mounting frame (101), the base (301) is located inside the water storage pipe (105), the top of the base (301) is fixedly connected to a support shaft (302), the top of the support shaft (302) passes through the water storage pipe (105), the spray box (102) and extends to the inside of the catalyst box (201), the outer wall of the support shaft (302) is provided with two annular grooves (319), and the inner walls of the two annular grooves (319) are rotatably connected to a rotating sleeve (321); The end of the support shaft (302) is rotatably connected to the first cone net (306), the second cone net (307) and the third cone net (308) in sequence from bottom to top; a support ring (305) is provided above the support shaft (302); the outer wall of the support ring (305) is fixedly connected to the inner wall of the catalyst box (201); the top of the support ring (305) is fixedly connected to the bottom of the guide sleeve (206); a plurality of rotation grooves (304) are provided at the bottom of the support ring (305); the tops of the first cone net (306), the second cone net (307) and the third cone net (308) are respectively rotatably connected to the corresponding rotation grooves (304); The circumferential wall of the third cone net (308) is fixedly connected to a first gear ring (313), the circumferential wall of the second cone net (307) is respectively fixedly connected to a second gear ring (314) and a third gear ring (315), the circumferential wall of the first cone net (306) is fixedly connected to a fourth gear ring (316), an annular sealing cavity is formed between the support ring (305), the guide sleeve (206) and the catalyst box (201), a motor (311) is provided in the sealing cavity, the motor (311) is fixedly connected to the inner wall of the catalyst box (201), the first cone net (306) and the second cone net (307) and the second cone net (307) and the third cone net (308) are fixedly connected to each other. ), two driving shafts (309) are provided between the first cone net (306) and the second cone net (307), the tops of the driving shafts (309) respectively penetrate the supporting rings (305) and are rotatably connected thereto, the output end of the motor (311) is fixedly connected to one of the driving shafts (309), the outer walls of the driving shafts (309) are fixedly connected to gears (310), the gears (310) located between the first cone net (306) and the second cone net (307) are respectively meshed with the third gear ring (315) and the fourth gear ring (316), and the gears (310) located between the second cone net (307) and the third cone net (308) are respectively meshed with the second gear ring (314) and the first gear ring (313); Two cleaning rollers (312) are provided between the first cone net (306) and the second cone net (307) and between the second cone net (307) and the third cone net (308); the upper shaft ends of the cleaning rollers (312) are connected to the corresponding drive shafts (309) via universal joints, and the lower shaft ends of the cleaning rollers (312) are rotatably connected to the corresponding rotating sleeves (321).

2. The exhaust gas purification device for a diesel generator set according to claim 1 is characterized in that: An exhaust fan (103) is installed in the top pipe of the spray box (102), a plurality of spray heads (104) are installed at equal intervals on the inner wall of the spray box (102), a drainage pipe (107) is fixedly connected to the outer wall of the water storage pipe (105) near the bottom, and an exhaust pipe (106) is fixedly connected to the outer wall of the water storage pipe (105) near the top.

3. The exhaust gas purification device for a diesel generator set according to claim 2 is characterized in that: The outer wall of the catalyst box (201) is fixedly connected to the mounting frame (101); a mounting hole (202) is provided on the outer wall of the catalyst box (201); and two connecting frames (203) are fixedly connected to the outer wall of the catalyst box (201).

4. The exhaust gas purification device for a diesel generator set according to claim 3 is characterized in that: The top of the catalyst box (201) is fixedly connected to an air intake pipe (205); the guide sleeve (206) has a decreasing diameter from top to bottom; a plurality of catalyst blocks (204) are fixedly connected to the inner wall of the catalyst box (201); a sealing plate (207) is threadedly connected to the bottom of the inner wall of the catalyst box (201); and the sealing plate (207) is connected to a pipeline at the top of the spray box (102).

5. The exhaust gas purification device for a diesel generator set according to claim 4 is characterized in that: The inner walls of the two annular grooves (319) are each provided with a plurality of dust discharge holes (320); the inner wall of the support shaft (302) is provided with a dust accumulation cavity (317); a material guide hole (318) is provided at the top of the dust accumulation cavity (317); the dust discharge holes (320) respectively extend into the interior of the material guide holes (318); the outer wall of the support shaft (302) is fixedly connected with a dust discharge pipe (303); an end of the dust discharge pipe (303) extends into the dust accumulation cavity (317); and the end of the dust discharge pipe (303) passes through the catalyst box (201) and extends to the outside thereof.

6. The exhaust gas purification device for a diesel generator set according to claim 5 is characterized in that: The waste discharge assembly (4) comprises a first branch pipe (401), the first branch pipe (401) being fixedly connected to a connecting frame (203), a second branch pipe (402) being fixedly connected to the bottom of the first branch pipe (401), a lower section of the second branch pipe (402) being bent outwardly to form an inclined structure, a rotating shaft (403) being rotatably connected to the inner wall of the first branch pipe (401), a top of the rotating shaft (403) penetrating the first branch pipe (401) and extending above the first branch pipe (401), and a circumferential outer wall of the rotating shaft (403) being fixedly A protrusion (406) is connected, the circumferential outer wall of the rotating shaft (403) is sleeved with a mounting sleeve (404), the inner wall of the mounting sleeve (404) is provided with a cam groove (405), the end of the protrusion (406) is slidably connected to the inner wall of the cam groove (405), the outer wall of the mounting sleeve (404) is fixedly connected with a piston disc (407), the inner wall of the first branch pipe (401) is provided with two movable grooves (434), and the outer wall protrusion of the piston disc (407) is slidably connected to the inner wall of the movable groove (434).

7. The exhaust gas purification device for a diesel generator set according to claim 6 is characterized in that: The bottom of the rotating shaft (403) is fixedly connected to a connecting rod (408), the inner wall of the connecting rod (408) is provided with a sliding cavity (409), the inner wall of the sliding cavity (409) is provided with two limiting grooves (410), the bottom of the connecting rod (408) is slidably connected to a straight rod (411), the top of the straight rod (411) extends into the sliding cavity (409), the inner wall of the sliding cavity (409) is slidably connected to a first sliding sleeve (413), the inner wall of the first sliding sleeve (413) is fixedly connected to the straight rod (411), and the first sliding sleeve (413) is fixedly connected to the inner wall of the straight rod (411). Two limit blocks (414) are fixedly connected to the circumferential outer wall of a sliding sleeve (413), and the limit blocks (414) are respectively slidably connected to the corresponding limit grooves (410). A first spring (412) is sleeved on the outer wall of the straight rod (411), and a plug (415) is fixedly connected to the bottom of the straight rod (411), and the conical tip of the plug (415) is arranged downward. One end of the first spring (412) is fixedly connected to the connecting rod (408), and the other end of the first spring (412) is fixedly connected to the plug (415).

8. The exhaust gas purification device for a diesel generator set according to claim 7 is characterized in that: A material guide sleeve (416) is fixedly connected to the inner wall of the first branch pipe (401), and the diameter of the material guide sleeve (416) decreases from top to bottom. An air intake pipe (417) is fixedly connected to the outer wall of the second branch pipe (402), and the end of the air intake pipe (417) is fixedly connected to the dust exhaust pipe (303). The end of the air intake pipe (417) extends into the interior of the second branch pipe (402). Two grooves (419) are provided on the outer wall of the second branch pipe (402), and the inner walls of the two grooves (419) are fixedly connected to a slide rod (420), and the outer walls of the slide rod (420) are A second spring (422) is provided in the sleeve, the outer wall of the sliding rod (420) is slidably connected to a supporting arm (421), the outer wall of the suction pipe (417) is slidably connected to a sealing sleeve (418), the inner wall of the sealing sleeve (418) is fixedly connected to the supporting arm (421), the caliber of the sealing sleeve (418) increases from top to bottom, the bottom caliber of the sealing sleeve (418) is larger than the bottom caliber of the material guide sleeve (416), one end of the second spring (422) is fixedly connected to the supporting arm (421), and the other end of the second spring (422) is fixedly connected to the suction pipe (417).

9. The exhaust gas purification device for a diesel generator set according to claim 8, characterized in that: The inner wall of the inclined section of the second branch pipe (402) is convexly formed with a convex ring (425); the inner wall of the second branch pipe (402) is slidably connected to a collecting tube (426); the inner wall of the collecting tube (426) is fixedly connected to a second filter screen (427); the outer wall of the inclined section of the second branch pipe (402) is fixedly connected to a return pipe (423); the end of the return pipe (423) extends into the catalytic box (201) and is fixedly connected thereto; the inner wall of the end of the return pipe (423) is fixedly connected to a first filter screen (424); the bottom of the collecting tube (426) is fixedly connected to a second sliding sleeve (428); the inner wall of the second sliding sleeve (428) is slidably connected to a connecting shaft (430); the outer wall of the connecting shaft (430) A third spring (431) is sleeved, a threaded cover (429) is rotatably connected to the bottom of the connecting shaft (430), the threaded cover (429) is threadedly connected to the inclined section of the second branch pipe (402), one end of the third spring (431) abuts against the second sliding sleeve (428), and the other end of the third spring (431) abuts against the threaded cover (429), and the waste discharge assembly (4) further comprises a first synchronous wheel (432) and a second synchronous wheel (433), the first synchronous wheel (432) is fixedly connected to the rotating shaft (403), the second synchronous wheel (433) is fixedly connected to the corresponding driving shaft (309), and the first synchronous wheel (432) and the second synchronous wheel (433) are connected via a synchronous belt transmission.

10. A method for purifying an exhaust gas purification device for a diesel generator set, applicable to the exhaust gas purification device for a diesel generator set according to claim 9, characterized in that: The following steps are involved: S1, exhaust gas is discharged into the catalyst box (201) through the intake pipe (205), the guide sleeve (206) collects the exhaust gas from top to bottom and quickly discharges it downward, and the exhaust gas is filtered from top to bottom through the third cone net (308), the second cone net (307) and the first cone net (306), so that particulate matter in the exhaust gas can be removed. The filtered exhaust gas passes through the catalyst block (204) inside the catalyst box (201) and the exhaust gas for catalytic reaction again, and the exhaust gas after the catalytic reaction is discharged into the spray box (102) through the exhaust fan (103). The external water pump injects water into the spray head (104), and the water is sprayed out through the spray head (104), so that the residual particles in the exhaust gas can be removed. The treated exhaust gas and spray water enter the water storage pipe (105), and the spray water is discharged through the drain pipe (107), and the purified exhaust gas is poured out through the exhaust pipe (106); S2, the motor (311) drives one of the gears (310) to rotate via the drive shaft (309), the gear (310) drives the third gear ring (315) and the fourth gear ring (316) to rotate respectively, the third gear ring (315) and the fourth gear ring (316) drive the first cone net (306) and the second cone net (307) to rotate, the second gear ring (314) on the second cone net (307) drives the first gear ring (313) to rotate via the gear (310), the third cone net (308) is driven to rotate via the first gear ring (313), the gear ( When the first cone net (306), the second cone net (307) and the third cone net (308) rotate, the corresponding cleaning rollers (310) are driven to rotate through the universal joints. The cleaning rollers (312) can rotate synchronously with the first cone net (306), the second cone net (307) and the third cone net (308). During the rotation process, the bristles of the cleaning rollers (312) will be inserted into the meshes of the first cone net (306), the second cone net (307) and the third cone net (308), so that the clogged particles can be cleaned, thereby improving the filtering efficiency of the first cone net (306), the second cone net (307) and the third cone net (308); S3, the cleaned particles will slide into the dust discharge hole (320) on the support shaft (302), and enter the dust storage chamber (317) through the dust discharge hole (320) and the material guide hole (318). When the motor (311) rotates, the first synchronous wheel (432) is driven to rotate rapidly through the second synchronous wheel (433), the rotating shaft (403) is driven to rotate through the first synchronous wheel (432), and the protrusion (406) is driven to rotate through the rotating shaft (403). The protrusion (406) slides along the cam groove (405) in the mounting sleeve (404), so that the mounting sleeve (404) can drive the piston disc (407) to move up and down reciprocatingly; S4, when the piston disc (407) slides upward, suction is generated inside the first branch pipe (401), the plug (415) pushes the straight rod (411) to move, and the straight rod (411) drives the first sliding sleeve (413) to slide along the inner wall of the sliding cavity (409), the first spring (412) is compressed, the plug (415) moves out of the suction pipe (417), the piston disc (407) continues to slide upward, and suction is generated inside the suction pipe (417), so that dust inside the dust accumulation cavity (317) can be sucked out into the first branch pipe (401); S5. When the piston disc (407) slides downward, the plug (415) blocks the top of the air intake pipe (417) under the elastic force of the first spring (412). The sealing sleeve (418) slides downward along the air intake pipe (417) under the action of air pressure. The sealing sleeve (418) drives the supporting arms (421) to slide along the slide rod (420) and squeezes the second spring (422). At this time, the particles falling on the guide sleeve (416) will enter the second branch pipe (402) and fall into the collection tube (426). The small amount of exhaust gas that follows the particles into the second branch pipe (402) will enter the catalyst box (201) again through the return pipe (423); S6. By unscrewing the threaded cover (429) from the inside of the second branch pipe (402), the collecting tube (426) can be disassembled, thereby removing the particles inside.

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