A smoke elimination and cooling device for diesel generator sets

Abstract

The present application relates to a smoke elimination and cooling device for a diesel generator set, comprising a tank body and an exhaust gas inlet pipe installed at the air inlet end of the tank body, and also comprising a spray mechanism installed on the outer wall of the tank body, with the spray port placed in the tank body; a diversion mechanism installed in the inner cavity of the tank body and connected to the exhaust gas inlet pipe; a filter press recovery mechanism installed at the tank body collecting port, for recovering liquid sprayed by the spray mechanism; a negative pressure lead pipe installed at the exhaust end of the tank body, the end of the negative pressure lead pipe away from the tank body being connected to a dispersion pipe; a particle capture mechanism distributed in parallel at the dispersion port of the dispersion pipe, and a hidden solenoid valve is provided at the junction; a back-blowing regeneration mechanism installed at the emptying end of the particle capture mechanism, facing the particle capture part of the particle capture mechanism. The present invention realizes the functions of cleaning the spray tank and recycling the spray liquid while spraying the exhaust gas of the diesel generator set.

Description

Technical Field

[0001] The invention relates to a smoke elimination and cooling device and a smoke elimination and cooling process for a diesel generator set, belonging to the technical field of tail gas treatment. Background Art

[0002] The exhaust temperature of diesel engines is generally as high as several hundred degrees Celsius, and some special places have strict requirements on the exhaust temperature, and the final exhaust temperature must be close to the external ambient temperature. For example, a certain underground power station of a protective project uses a diesel generator (referred to as a diesel engine) as a power source. When the diesel generator is working, it emits more than 200 kinds of harmful gases and solid emissions, but the main ones that can expose the project target are smoke and high-temperature gases, which can be detected by video or far-infrared. Therefore, the focus of this study is to greatly reduce the concentration and temperature of black smoke emitted by diesel generators so that it will not expose the target when discharged to the outside of the project.

[0003] There are many measures for exhaust purification of diesel engines. Generally speaking, these technical measures can be divided into two categories: one is to control the amount of pollutants generated during and after the combustion process before the gas is discharged from the exhaust valve, that is, the pre-exhaust control technology, or the in-engine purification technology; the other is to reduce the amount of pollutants that enter the atmosphere after the exhaust gas is discharged from the exhaust valve, that is, the exhaust post-treatment technology. At present, the post-treatment methods used to reduce diesel engine carbon soot at home and abroad are easy to cause exhaust blockage and increase the back pressure of the diesel engine.

[0004] The particulate filter (DPF) is currently the most common and effective technology to solve diesel engine particulate emissions. It can capture more than 90% of particulate matter (PM). However, as the working time increases, particulate matter continues to adhere to the side wall of the filter element, causing the exhaust back pressure to continue to increase, which seriously affects the power and economy of the diesel engine. Cleaning the particulate matter in the DPF is called DPF regeneration. The current regeneration methods are divided into two categories: active regeneration and passive regeneration. Active regeneration methods include fuel injection regeneration, electric heating regeneration, infrared regeneration, microwave regeneration, and back-blowing regeneration. The disadvantage of active regeneration is that the structure is complex and requires other energy consumption. For example, fuel injection regeneration requires additional fuel, electric heating regeneration requires electricity, and infrared regeneration and microwave regeneration consume radiation energy. Among them, back-blowing regeneration uses compressed air to back-blow the DPF, and the energy consumption is relatively low. Passive regeneration includes high-load regeneration, fuel additives and catalytic regeneration. The advantage of passive regeneration is that it does not require energy consumption, but its disadvantages are poor controllability, easy burn-through of the carrier, and no safety guarantee. Among them, high-load regeneration has relatively high requirements on working conditions. Catalyst regeneration requires low smoke emissions and is prone to catalyst poisoning, affecting the catalytic purification effect. Fuel additives require low-sulfur diesel. At present, the sulfur content of domestic diesel is generally high, and the combustion of additives will produce secondary pollution.

[0005] The utility model patent with patent application number CN201920951516.2 in the prior art discloses "a spray-type particle separation device for low-speed passage of diesel engine exhaust. When in use, liquid is introduced from the water inlet of the curved pipe, and the liquid is sprayed out from each water spray hole during the flow, thereby forming water mist in the adsorption channel. The diesel engine exhaust enters the inner cavity from the air inlet and moves along the spiral adsorption channel. The particulate matter in the exhaust gas is soaked and weighted under the action of the water mist and settles during the movement. The water mist and the particulate matter sink together into the water collecting tank at the bottom, and the purified exhaust gas is discharged into the atmosphere from the air outlet. The spiral adsorption channel is long and curved, which can extend the movement path of the exhaust gas within a certain space and improve the effect of the exhaust gas particulate matter being adsorbed; and the water mist will slow down the movement speed of the exhaust gas to a certain extent, so that the particulate matter can be adsorbed more fully. The particle separator of the utility model is simple in structure and low in cost", but there are still defects. There is a lack of a recycling device for the spray water, which leads to an increase in water demand.

[0006] The utility model patent with patent application number CN202022278615.4 in the prior art discloses "a diesel engine exhaust treatment device, comprising an intake pipe, an adsorption tube and a treatment box, an adsorption tube is provided on the right side of the intake pipe, the left end of the adsorption tube is connected to the right end of the intake pipe, a treatment box is provided on the right side of the adsorption tube, the right end of the adsorption tube is connected to the left end of the treatment box through an air guide pipe, and a rotating frame is provided inside the treatment box. The utility model is provided with an adsorption tube, and the adsorption net in the adsorption tube can perform preliminary adsorption treatment on the impurities contained in the exhaust gas, and a treatment box is provided. The adsorption plate provided in the treatment box can perform re-adsorption treatment on the impurities contained in the exhaust gas, and a scooping barrel is provided, so that the exhaust gas can be sprayed with lime water, which greatly reduces the acidic gas contained in the exhaust gas; the adsorption tube and the adsorption box provided in the utility model are both detachable structures, which is convenient for the staff to clean the inside thereof", but there are still defects, and the adsorption box still needs to be shut down for cleaning, affecting the continuity of work. Summary of the invention

[0007] (I) The technical problem to be solved by the present invention is: the lack of a recovery device for the spray liquid from the spray pipe and the poor working continuity caused by the shutdown and cleaning of the inner cavity of the waste adsorption box.

[0008] (II) Technical solution

[0009] In order to achieve the above-mentioned purpose of the invention, the present invention provides a smoke elimination and cooling device for a diesel generator set, comprising a tank body and an exhaust gas inlet pipe installed at the air inlet end of the tank body, and further comprising:

[0010] The spray mechanism is installed on the outer wall of the tank, and the spray port is placed inside the tank;

[0011] The diversion mechanism is installed in the inner cavity of the tank body and is connected with the exhaust gas inlet pipe;

[0012] The filter press recovery mechanism is installed at the collection port of the tank body and is used to recover the liquid sprayed by the spray mechanism;

[0013] A negative pressure lead pipe is installed at the exhaust end of the tank body, and one end of the negative pressure lead pipe away from the tank body is connected to a dispersion pipe;

[0014] The particle collection mechanism is distributed in parallel at the dispersion port of the dispersion pipe, and a hidden solenoid valve is provided at the junction;

[0015] The back-flushing regeneration mechanism is installed at the exhaust end of the particle collection mechanism and is directly opposite to the particle collection part of the particle collection mechanism.

[0016] The spray mechanism includes a liquid storage tank installed under the tank body, a liquid pump installed on the top of the liquid storage tank, a liquid extraction pipe connected to the liquid extraction end of the liquid pump and placed below the liquid level in the liquid storage tank, an annular pipe connected to the liquid outlet end of the liquid pump and sleeved on the outer wall of the tank body, equidistantly distributed diversion pipes connected to the annular pipe and parallel to the outer surface of the tank body, and equidistantly distributed spray heads evenly distributed on one side of the diversion pipe close to the tank body and extending to the inner cavity of the tank body.

[0017] Among them, the diversion mechanism includes a main diverter pipe rotatably connected to the exhaust gas diversion end of the exhaust gas inlet pipe placed in the inner cavity of the tank body, a secondary diverter pipe evenly distributed on the outer wall of the main diverter pipe, and a diversion branch pipe installed on the outer wall of the secondary diverter pipe. The end of the main diverter pipe away from the exhaust gas inlet pipe diversion end is closed and extends outward through the tank body, and the extended end of the main diverter pipe is connected to a reciprocating rotating component.

[0018] Wherein, the reciprocating rotating assembly includes a first driving half gear and a second driving half gear installed on the outer wall of the tank body and a driven full gear installed at the extended end of the main shunt pipe, and when the gear teeth on the first driving half gear are engaged with the gear teeth on the driven full gear, the gear teeth on the second driving half gear are separated from the gear teeth on the driven full gear, and when the gear teeth on the first driving half gear are separated from the gear teeth on the driven full gear, the gear teeth on the second driving half gear are engaged with the gear teeth on the driven full gear.

[0019] The diversion branch pipes are gradually lengthened in a direction away from the main diversion pipe.

[0020] Wherein, one end of the secondary guide pipe away from the main guide pipe is connected with a cleaning strip which avoids the spray head and fits with the inner wall of the tank body.

[0021] Among them, the filter press recovery mechanism includes a filter press box installed at the reflux port at the bottom of the tank body, a filter element detachably connected to the filter press box outlet and the liquid storage tank inlet, a filter press plate slidably connected to the inner cavity of the filter press box, a leakage hole opened on the filter press plate, and a sealing block for sealing the leakage hole under the filter press state, the sealing block is installed on the bottom inner wall of the filter press box, and the top and bottom of the filter press plate are also provided with filter press drive components that cooperate with each other.

[0022] Among them, the filter press drive assembly includes a transmission rod installed on the top of the filter press plate, a roller rotatably connected to the end of the transmission rod, a telescopic rod connected between the filter press plate and the inner wall of the bottom of the filter press box, and a compression spring sleeved on the outer wall of the telescopic rod, and a cam installed on the outer wall of the main flow pipe and abutting against the roller is abutted above the roller, and the cam avoids the cleaning strip and the spray head.

[0023] Wherein, the back-blowing regeneration mechanism is provided with an air pressure output control panel.

[0024] A smoke elimination and cooling process for a smoke elimination and cooling device for a diesel generator set comprises the following steps:

[0025] S1: The exhaust gas generated by the diesel generator set enters the main guide pipe through the exhaust gas inlet pipe. The main guide pipe guides the exhaust gas into the secondary guide pipe, and the exhaust gas is dispersed into the tank cavity through the guide branch pipes connected in sequence to the outer wall of the secondary guide pipe;

[0026] S2: The first driving half gear of the reciprocating rotating assembly is meshed with the driven full gear to drive the driven full gear to rotate counterclockwise, thereby driving the main draft pipe to rotate counterclockwise, which helps the exhaust gas discharged from the draft branch pipe to generate a swirl flow and increase the retention time of the exhaust gas in the tank body. When the first driving half gear is separated from the driven full gear, the second driving half gear is meshed with the driven full gear to drive the driven full gear to rotate clockwise, thereby rotating the main draft pipe clockwise. The reciprocating rotation of the main draft pipe helps to increase the retention time of the exhaust gas discharged from the draft branch pipe in the tank body, and the draft branch pipes of different lengths further improve the dispersion effect of the exhaust gas in the tank body.

[0027] S3: The tail gas retained in the tank body is pumped out of the liquid storage tank by a liquid pump, and then sent to the spray head for spraying through the annular pipe and the diversion pipe. The sprayed tail gas treatment liquid performs the function of smoke elimination and temperature reduction of the tail gas. The spray heads evenly distributed at equal distances improve the spraying uniformity of the treatment liquid and improve the treatment effect of the tail gas;

[0028] S4: The sprayed treatment liquid flows back through the reflux port of the tank body. When the proximal end of the cam abuts against the roller, the blocking block is separated from the leakage hole, and the treatment liquid in the tank body enters the filter press box through the leakage hole of the filter press plate. As the main duct reciprocates, the cam abuts against the roller from the proximal end to the distal end, and the cam gradually presses down the filter press plate. At this time, the telescopic rod contracts, and the compression spring contracts. During the contraction of the telescopic rod, the blocking block blocks the leakage hole. As the filter press plate continues to descend, the filter press plate filters the refluxed treatment liquid that flows back into the space between the filter press plate and the bottom inner wall of the filter press box, and presses it into the liquid storage tank through the filter element for further recycling.

[0029] S5: The exhaust gas after the tank spraying smoke elimination and cooling is sucked into the dispersion pipe through the negative pressure lead pipe, and the particle capture mechanism distributed in series on the dispersion pipe completes the capture function of the particles in the exhaust gas, thereby improving the exhaust gas emission quality;

[0030] S6: In order to further improve the particle collection effect of the particle collection mechanism and increase the residence time of the exhaust gas in the particle collection part of the particle collection mechanism, the back-blowing air pressure of the back-blowing regeneration mechanism is controlled by the air pressure output control panel on the back-blowing regeneration mechanism to improve the particle collection function of the particle collection mechanism.

[0031] Beneficial Effects

[0032] The smoke elimination and cooling device for a diesel generator set provided by the present invention has the following beneficial effects:

[0033] 1. The spray mechanism is set up to achieve the smoke elimination and temperature reduction function of the diesel generator set;

[0034] 2. The diversion mechanism is set up to achieve uniform smoke dispersion, solving the problem of poor smoke elimination effect caused by insufficient smoke dispersion in the prior art;

[0035] 3. The filter press recovery mechanism is set up to realize the recovery and filtration function of the spray liquid, solving the problem of the lack of spray water recovery and utilization device in the prior art, which leads to increased water demand;

[0036] 4. The cleaning strip is set to achieve the cleaning function of the tank during the exhaust gas spraying process, without stopping the machine for cleaning, which improves the continuity of work and solves the problem of poor work continuity caused by stopping the machine for cleaning in the prior art;

[0037] 5. Through the setting of the particle collection mechanism and back-blowing regeneration mechanism distributed in series, the particle collection function in the exhaust gas is realized and the emission quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 This is one of the structural schematic diagrams of the smoke elimination and cooling equipment for a diesel generator set provided in this application.

[0040] Figure 2 This is the second structural schematic diagram of the smoke elimination and cooling equipment for diesel generator sets provided in this application.

[0041] Figure 3 The smoke elimination and cooling device for diesel generator sets provided in this application Figure 2 Schematic diagram of the enlarged structure of part A.

[0042] Figure 4 This is the third structural schematic diagram of the smoke elimination and cooling equipment for diesel generator sets provided in this application.

[0043] Figure 5 This is the fourth structural schematic diagram of the smoke elimination and cooling equipment for diesel generator sets provided in this application.

[0044] Figure 6 This is one of the schematic diagrams of the internal structure of the tank body of the smoke elimination and cooling equipment for diesel generator sets provided in this application.

[0045] Figure 7 The smoke elimination and cooling device for diesel generator sets provided in this application Figure 6 Schematic diagram of the enlarged structure of part B.

[0046] Figure 8 The second schematic diagram of the internal structure of the tank of the smoke elimination and cooling equipment for diesel generator sets provided in this application.

[0047] Fig. 9 A schematic structural diagram of the particle collection mechanism of the smoke elimination and cooling equipment for a diesel generator set provided in this application.

[0048] 10, tank body; 110, exhaust gas inlet pipe; 20, spray mechanism; 210, liquid storage tank; 220, liquid pump; 230, liquid extraction pipe; 240, annular pipe; 250, diversion pipe; 260, spray head; 30, diversion mechanism; 310, main diversion pipe; 320, secondary diversion pipe; 330, diversion branch pipe; 340, reciprocating rotating assembly; 350, cleaning strip; 341, first driving half gear; 342, second driving half gear; 343, Driven full gear; 40, filter press recovery mechanism; 410, filter press box; 420, filter element; 430, filter press plate; 440, leakage hole; 450, blocking block; 460, filter press drive assembly; 461, transmission rod; 462, roller; 463, telescopic rod; 464, compression spring; 465, cam; 50, negative pressure guide pipe; 510, dispersion pipe; 60, particle collection mechanism; 70, backflush regeneration mechanism; 710, air pressure output control panel. DETAILED DESCRIPTION

[0049] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples of the specification. The following examples are only used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0050] Embodiment 1:

[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, this embodiment proposes a smoke elimination and cooling device for a diesel generator set, including a tank body 10 and an exhaust gas inlet pipe 110 installed at the air inlet end of the tank body 10, and also includes:

[0052] The spray mechanism 20 is installed on the outer wall of the tank body 10, and the spray port is placed inside the tank body 10;

[0053] The flow dividing mechanism 30 is installed in the inner cavity of the tank body 10 and communicated with the exhaust gas inlet pipe 110;

[0054] The filter press recovery mechanism 40 is installed at the collection port of the tank body 10 and is used to recover the liquid sprayed by the spray mechanism 20;

[0055] The negative pressure lead pipe 50 is installed at the exhaust end of the tank body 10, and one end of the negative pressure lead pipe 50 away from the tank body 10 is connected to a dispersion pipe 510;

[0056] The particle collection mechanism 60 is distributed in parallel at the dispersion port of the dispersion pipe 510, and a hidden electromagnetic valve is provided at the intersection;

[0057] The backflush regeneration mechanism 70 is installed at the exhaust end of the particle collection mechanism 60 , facing the particle collection portion of the particle collection mechanism 60 .

[0058] The spray mechanism 20 includes a liquid storage tank 210 installed below the tank body 10, a liquid pump 220 installed on the top of the liquid storage tank 210, a liquid extraction pipe 230 connected to the liquid extraction end of the liquid pump 220 and placed below the liquid level in the liquid storage tank 210, an annular pipe 240 connected to the liquid outlet end of the liquid pump 220 and sleeved on the outer wall of the tank body 10, an equidistantly distributed shunt pipe 250 connected to the annular pipe 240 and parallel to the outer surface of the tank body 10, and equidistantly distributed spray heads 260 evenly distributed on one side of the shunt pipe 250 close to the tank body 10 and extending to the inner cavity of the tank body 10. The diversion branch pipe 330 becomes longer in a direction away from the main diversion pipe 310. The smoke elimination and cooling function of the diesel generator set is realized by the arranged spray mechanism 20.

[0059] The diversion mechanism 30 includes a main diverter pipe 310 rotatably connected to the exhaust gas diversion end of the exhaust gas inlet pipe 110 placed in the inner cavity of the tank body 10, a secondary diverter pipe 320 evenly distributed on the outer wall of the main diverter pipe 310, and a diversion branch pipe 330 installed on the outer wall of the secondary diverter pipe 320. The end of the main diverter pipe 310 away from the diversion end of the exhaust gas inlet pipe 110 is closed and extends outward through the tank body 10, and the extended end of the main diverter pipe 310 is connected to a reciprocating rotating component 340.

[0060] The reciprocating rotating component 340 includes a first driving half gear 341 and a second driving half gear 342 installed on the outer wall of the tank body 10 and a driven full gear 343 installed at the extended end of the main duct 310, and when the gear teeth on the first driving half gear 341 are engaged with the gear teeth on the driven full gear 343, the gear teeth on the second driving half gear 342 are separated from the gear teeth on the driven full gear 343, and when the gear teeth on the first driving half gear 341 are separated from the gear teeth on the driven full gear 343, the gear teeth on the second driving half gear 342 are engaged with the gear teeth on the driven full gear 343, and the reciprocating rotating component 340 improves the dispersion effect of the exhaust gas in the tank body 10.

[0061] The exhaust gas generated by the diesel generator set enters the main guide pipe 310 through the exhaust gas inlet pipe 110. The main guide pipe 310 guides the exhaust gas into the secondary guide pipe 320, and disperses the exhaust gas into the inner cavity of the tank body 10 through the guide branch pipes 330 connected in sequence to the outer walls of the secondary guide pipes 320; the reciprocating rotating assembly 340 is turned on, and the first driving half gear 341 is engaged with the driven full gear 343 to drive the driven full gear 343 to rotate counterclockwise, thereby driving the main guide pipe 310 to rotate counterclockwise, which helps the exhaust gas discharged from the guide branch pipe 330 to generate a swirl flow and increase the residence time of the exhaust gas in the tank body 10. When the first driving half gear 341 is separated from the driven full gear 343, the second driving half gear 342 is engaged with the driven full gear 343. The meshing of the gear 343 drives the driven full gear 343 to rotate clockwise, and then the main diverter pipe 310 rotates clockwise. The reciprocating rotation of the main diverter pipe 310 helps to increase the retention time of the exhaust gas discharged from the diversion branch pipe 330 in the tank body 10, and the diversion branch pipes 330 of different lengths further improve the dispersion effect of the exhaust gas in the tank body 10; the exhaust gas retained in the tank body 10 is extracted from the liquid storage tank 210 by the liquid pump 220, and then sent to the spray head 260 for spraying through the annular pipe 240 and the diversion pipe 250. The sprayed exhaust treatment liquid performs the smoke elimination and temperature reduction function of the exhaust gas. The spray heads 260 evenly distributed at equal distances improve the spraying uniformity of the treatment liquid and improve the exhaust gas treatment effect.

[0062] Embodiment 2:

[0063] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0064] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Fig. 9 As shown, this embodiment provides a smoke elimination and cooling device for a diesel generator set, including a tank body 10 and an exhaust gas inlet pipe 110 installed at the air inlet end of the tank body 10, and also includes:

[0065] The spray mechanism 20 is installed on the outer wall of the tank body 10, and the spray port is placed inside the tank body 10;

[0066] The flow dividing mechanism 30 is installed in the inner cavity of the tank body 10 and communicated with the exhaust gas inlet pipe 110;

[0067] The filter press recovery mechanism 40 is installed at the collection port of the tank body 10 and is used to recover the liquid sprayed by the spray mechanism 20;

[0068] The negative pressure lead pipe 50 is installed at the exhaust end of the tank body 10, and one end of the negative pressure lead pipe 50 away from the tank body 10 is connected to a dispersion pipe 510;

[0069] The particle collection mechanism 60 is distributed in parallel at the dispersion port of the dispersion pipe 510, and a hidden electromagnetic valve is provided at the intersection;

[0070] The backflush regeneration mechanism 70 is installed at the exhaust end of the particle collection mechanism 60 , facing the particle collection portion of the particle collection mechanism 60 .

[0071] The spray mechanism 20 includes a liquid storage tank 210 installed below the tank body 10, a liquid pump 220 installed on the top of the liquid storage tank 210, a liquid extraction pipe 230 connected to the liquid extraction end of the liquid pump 220 and placed below the liquid level in the liquid storage tank 210, an annular pipe 240 connected to the liquid outlet end of the liquid pump 220 and sleeved on the outer wall of the tank body 10, an equidistantly distributed shunt pipe 250 connected to the annular pipe 240 and parallel to the outer surface of the tank body 10, and equidistantly distributed spray heads 260 evenly distributed on one side of the shunt pipe 250 close to the tank body 10 and extending to the inner cavity of the tank body 10. The diversion branch pipe 330 becomes longer in a direction away from the main diversion pipe 310. The smoke elimination and cooling function of the diesel generator set is realized by the arranged spray mechanism 20.

[0072] The diversion mechanism 30 includes a main diverter pipe 310 rotatably connected to the exhaust gas diversion end of the exhaust gas inlet pipe 110 placed in the inner cavity of the tank body 10, a secondary diverter pipe 320 evenly distributed on the outer wall of the main diverter pipe 310, and a diversion branch pipe 330 installed on the outer wall of the secondary diverter pipe 320. The end of the main diverter pipe 310 away from the diversion end of the exhaust gas inlet pipe 110 is closed and extends outward through the tank body 10, and the extended end of the main diverter pipe 310 is connected to a reciprocating rotating component 340.

[0073] The reciprocating rotation assembly 340 includes a first driving half gear 341 and a second driving half gear 342 installed on the outer wall of the tank body 10 and a driven full gear 343 installed on the extended end of the main shunt pipe 310, and when the gear teeth on the first driving half gear 341 are engaged with the gear teeth on the driven full gear 343, the gear teeth on the second driving half gear 342 are separated from the gear teeth on the driven full gear 343, and when the gear teeth on the first driving half gear 341 are separated from the gear teeth on the driven full gear 343, the gear teeth on the second driving half gear 342 are engaged with the gear teeth on the driven full gear 343.

[0074] The filter press recovery mechanism 40 includes a filter press box 410 installed at the reflux port at the bottom of the tank body 10, a filter element 420 detachably connected to the outlet of the filter press box 410 and the inlet of the liquid storage tank 210, a filter press plate 430 slidably connected to the inner cavity of the filter press box 410, a leakage hole 440 opened on the filter press plate 430, and a blocking block 450 for blocking the leakage hole 440 under the filter press state. The blocking block 450 is installed on the bottom inner wall of the filter press box 410. The top and bottom of the filter press plate 430 are also provided with a filter press drive assembly 460 that cooperates with each other. Through the set filter press recovery mechanism 40, the recovery and filtration function of the spray liquid is realized, which solves the problem of lack of a spray water recycling device in the prior art, resulting in an increase in water demand.

[0075] The filter press drive assembly 460 includes a transmission rod 461 installed on the top of the filter press plate 430, a roller 462 rotatably connected to the end of the transmission rod 461, a telescopic rod 463 connected between the filter press plate 430 and the inner wall of the bottom of the filter press box 410, and a compression spring 464 sleeved on the outer wall of the telescopic rod 463. A cam 465 installed on the outer wall of the main flow pipe 310 and abutting against the roller 462 is abutted above the roller 462, and the cam 465 avoids the cleaning strip 350 and the spray head 260. An air pressure output control panel 710 is provided on the back-blowing regeneration mechanism 70. By setting the particle collection mechanism 60 and the back-blowing regeneration mechanism 70 distributed in series, the particle collection function in the exhaust gas is realized, and the emission quality is improved.

[0076] The exhaust gas generated by the diesel generator set enters the main guide pipe 310 through the exhaust gas inlet pipe 110. The main guide pipe 310 guides the exhaust gas into the secondary guide pipe 320, and disperses the exhaust gas into the inner cavity of the tank body 10 through the guide branch pipe 330 connected in sequence to the outer wall of the secondary guide pipe 320; the reciprocating rotating component 340 is turned on, and the first driving half gear 341 is meshed with the driven full gear 343 to drive the driven full gear 343 to rotate counterclockwise, thereby driving the main guide pipe 310 to rotate counterclockwise, which helps the exhaust gas discharged from the guide branch pipe 330 to generate a swirl flow and increase the residence time of the exhaust gas in the tank body 10. When the first driving half gear 341 is separated from the driven full gear 343, the second driving half gear 342 is meshed with the driven full gear 343. The meshing of the driving full gear 343 drives the driven full gear 343 to rotate clockwise, and then the main guide pipe 310 rotates clockwise. The reciprocating rotation of the main guide pipe 310 helps to increase the retention time of the exhaust gas discharged from the guide branch pipe 330 in the tank body 10, and the guide branch pipes 330 of different lengths further improve the dispersion effect of the exhaust gas in the tank body 10; the exhaust gas retained in the tank body 10 is pumped out of the liquid storage tank 210 by the liquid pump 220, and then sent to the spray head 260 for spraying through the annular pipe 240 and the diversion pipe 250. The sprayed exhaust treatment liquid performs the function of smoke elimination and temperature reduction of the exhaust gas. The spray heads 260 evenly distributed at equal distances improve the spraying uniformity of the treatment liquid and improve the exhaust gas. Treatment effect: The sprayed treatment liquid flows back through the reflux port of the tank body 10. When the proximal end of the cam 465 abuts against the roller 462, the blocking block 450 is separated from the leakage hole 440, and the treatment liquid in the tank body 10 enters the filter press box 410 through the leakage hole 440 of the filter press plate 430. As the main duct 310 reciprocates, the cam 465 abuts against the roller 462 from the proximal end to the distal end, and the cam 465 gradually presses down the filter press plate 430. At this time, the telescopic rod 463 contracts, and the compression spring 464 contracts. In the process of the contraction of the telescopic rod 463, the blocking block 450 blocks the leakage hole 440. As the filter press plate 430 continues to descend, the filter press plate 430 is blocked by the reflux entering the filter press plate 430 and the filter press box 410. The refluxed treated liquid between the inner walls of the bottom is filter-filtered and pressed into the liquid storage tank 210 through the filter element 420 for further recycling; the exhaust gas after being sprayed by the tank body 10 to eliminate smoke and cool down is attracted by the negative pressure guide pipe 50 into the dispersion pipe 510, and the particle collection mechanism 60 distributed in series on the dispersion pipe 510 completes the function of collecting particulate matter in the exhaust gas, thereby improving the emission quality of the exhaust gas; in order to further improve the particle collection effect of the particle collection mechanism 60 and increase the residence time of the exhaust gas in the particle collection part of the particle collection mechanism 60, the back-blowing air pressure of the back-blowing regeneration mechanism 70 is controlled by the air pressure output control panel 710 on the back-blowing regeneration mechanism 70, thereby improving the particle collection function of the particle collection mechanism 60.

[0077] The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A smoke elimination and cooling device for a diesel generator set, comprising a tank body (10) and an exhaust gas inlet pipe (110) installed at an air inlet end of the tank body (10), characterized in that: Also includes, A spray mechanism (20) is mounted on the outer wall of the tank body (10), and a spray port is disposed inside the tank body (10); A flow dividing mechanism (30) is installed in the inner cavity of the tank body (10) and is in communication with the exhaust gas inlet pipe (110); A filter press recovery mechanism (40) is installed at the collection port of the tank body (10) and is used to recover the liquid sprayed by the spray mechanism (20); A negative pressure guide pipe (50) is installed at the exhaust end of the tank body (10), and one end of the negative pressure guide pipe (50) away from the tank body (10) is connected to a dispersion pipe (510); The particle collection mechanism (60) is distributed in parallel at the dispersion port of the dispersion pipe (510), and a hidden electromagnetic valve is provided at the junction; A backflush regeneration mechanism (70) is installed at the exhaust end of the particle collection mechanism (60) and directly faces the particle collection portion of the particle collection mechanism (60); The filter press recovery mechanism (40) comprises a filter press box (410) mounted at a reflux port at the bottom of the tank body (10), a filter element (420) detachably connected to the outlet of the filter press box (410) and the inlet of the liquid storage tank (210), a filter press plate (430) slidably connected to the inner cavity of the filter press box (410), a liquid leakage hole (440) provided on the filter press plate (430), and a blocking block (450) for blocking the liquid leakage hole (440) in a filter press state, wherein the blocking block (450) is mounted on the bottom inner wall of the filter press box (410), and the top and bottom of the filter press plate (430) are further provided with a filter press drive assembly (460) that cooperates with each other; The spray mechanism (20) comprises a liquid storage tank (210) installed below the tank body (10), a liquid pump (220) installed on the top of the liquid storage tank (210), a liquid extraction pipe (230) connected to the liquid extraction end of the liquid pump (220) and placed below the liquid level in the liquid storage tank (210), an annular pipe (240) connected to the liquid outlet end of the liquid pump (220) and sleeved on the outer wall of the tank body (10), a shunt pipe (250) connected to the annular pipe (240) and parallel to the outer surface of the tank body (10) and distributed at equal distances, and spray heads (260) evenly distributed on one side of the shunt pipe (250) close to the tank body (10) and extending to the inner cavity of the tank body (10); The backflush regeneration mechanism (70) is provided with an air pressure output control panel (710).

2. The smoke elimination and cooling equipment for diesel generator sets according to claim 1 is characterized in that: The flow diversion mechanism (30) comprises a main flow diversion pipe (310) rotatably connected to the exhaust gas diversion end of the exhaust gas inlet pipe (110) disposed in the inner cavity of the tank body (10), secondary flow diversion pipes (320) evenly distributed on the outer wall of the main flow diversion pipe (310), and diversion branch pipes (330) installed on the outer wall of the secondary flow diversion pipe (320), one end of the main flow diversion pipe (310) away from the diversion end of the exhaust gas inlet pipe (110) is closed and extends outward through the tank body (10), and the extended end of the main flow diversion pipe (310) is connected to a reciprocating rotation component (340).

3. The smoke elimination and cooling equipment for diesel generator sets according to claim 2 is characterized in that: The reciprocating rotating assembly (340) comprises a first driving half gear (341) and a second driving half gear (342) mounted on the outer wall of the tank body (10), and a driven full gear (343) mounted on the extended end of the main duct (310), and when the gear teeth on the first driving half gear (341) are meshed with the gear teeth on the driven full gear (343), the gear teeth on the second driving half gear (342) are separated from the gear teeth on the driven full gear (343); when the gear teeth on the first driving half gear (341) are separated from the gear teeth on the driven full gear (343), the gear teeth on the second driving half gear (342) are meshed with the gear teeth on the driven full gear (343).

4. The smoke elimination and cooling equipment for diesel generator sets according to claim 2 is characterized in that: The flow guiding branch pipes (330) gradually become longer in a direction away from the main flow guiding pipe (310).

5. The smoke elimination and cooling equipment for diesel generator sets according to claim 2 is characterized in that: One end of the secondary flow guide pipe (320) away from the main flow guide pipe (310) is connected to a cleaning strip (350) that avoids the spray head (260) and fits against the inner wall of the tank body (10).

6. The smoke elimination and cooling equipment for diesel generator sets according to claim 1 is characterized in that: The filter press drive assembly (460) comprises a transmission rod (461) mounted on the top of the filter press plate (430), a roller (462) rotatably connected to the end of the transmission rod (461), a telescopic rod (463) connected between the filter press plate (430) and the inner wall of the bottom of the filter press box (410), and a compression spring (464) sleeved on the outer wall of the telescopic rod (463); a cam (465) mounted on the outer wall of the main flow pipe (310) and abutting against the roller (462) is abutted above the roller (462); and the cam (465) avoids the cleaning strip (350) and the spray head (260).

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