A ship exhaust desulfurization scrubber

Abstract

The present invention discloses a ship exhaust desulfurization scrubber, which relates to the technical field of ship exhaust treatment, and comprises a base, an absorption cylinder fixedly mounted on the base, and an air injection valve fixedly connected to the side wall of the absorption cylinder; an absorption part, which is used to absorb sulfur oxides in the exhaust gas injected into the absorption cylinder through the air injection valve, a washing liquid is contained in the absorption cylinder, the washing liquid in the absorption cylinder is circulated through a circulation device, and an absorption assembly is installed in the absorption cylinder. The advantages are: the present invention adopts two-way spraying to increase the contact time between the exhaust gas and the washing liquid, effectively improves the exhaust gas washing and purification efficiency, and makes the exhaust gas washing and purification more thorough, and at the same time uses the injection assembly to form air flow disturbance in the washing cylinder, increase the collision force between molecules, thereby accelerating the reaction rate and improving the desulfurization efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of ship exhaust gas treatment, and in particular to a ship exhaust gas desulfurization washing tower. Background Art

[0002] Ships generate a large amount of exhaust gas during operation, which contains nitrogen oxides (NOx), sulfur oxides (SOx), particulate matter (PM) and volatile organic compounds (VOCs). These pollutants can have a serious impact on air quality, leading to environmental and health problems such as acid rain, haze and respiratory diseases. Therefore, the exhaust gas from ships needs to be purified before it is discharged.

[0003] Most of the existing ships are equipped with a desulfurization scrubber, which can effectively remove the most polluting sulfur oxides in the ship's exhaust gas. For example, the announcement number CN118022541B discloses a ship desulfurization type I scrubber and a method of using the same, which includes a mounting ring, four legs are symmetrically fixedly installed at the bottom of the mounting ring, a type I scrubber is fixedly installed in the mounting ring, water is placed in the type I scrubber, an air inlet pipe is fixedly installed on the inner wall of the bottom of one side of the type I scrubber, one end of the air inlet pipe extends to the outside of the type I scrubber, a first one-way valve is fixedly installed in the air inlet pipe, and the gas is transported to the type I scrubber along the first one-way valve, a pressure gauge is installed on the top of one side of the type I scrubber, and a scrubbing mechanism is installed on the inner wall of the bottom of the type I scrubber, one side of the scrubber extends to the outside of the type I scrubber and is connected to one side of the type I scrubber, and also includes: the scrubber mechanism is arranged in water for stirring when cleaning the exhaust gas;

[0004] A filter mechanism is installed in the I-type washing tower. The filter mechanism is located above the washing mechanism. A first check valve is provided on the filter mechanism. The first check valve is used to prevent the gas from flowing in reverse. The filter mechanism is used to filter the cleaned gas.

[0005] A spray mechanism is installed on a type I washing tower. The spray mechanism is located above the filtering mechanism. The filtering mechanism passes through the spray mechanism and is connected to the spray mechanism. The spray mechanism is used to spray the filtered gas to remove harmful substances in the gas. An air outlet pipe is connected to the spray mechanism, and the top of the air outlet pipe extends to the top of the type I washing tower.

[0006] The above-mentioned washing tower is provided with a spray mechanism, and after the first spray component is connected to the external washing liquid conveying device, the washing liquid used to clean the sulfide in the exhaust gas can be conveyed into the first spray component. At this time, after the filtered exhaust gas is conveyed upward to the top of the second partition, the exhaust gas can be sprayed under the action of the first spray component, and after the air pressure above the second partition increases, the gas density increases. Therefore, when the exhaust gas is sprayed and flushed by the first spray component, the flushing efficiency of the exhaust gas can be improved, and after the gas enters the second spray component, the gas can be flushed for the second time, so that the sulfide in the gas can be treated.

[0007] When the scrubber is used to purify ship exhaust gas, the exhaust gas moves from bottom to top, while the spray moves from top to bottom, forming a counter-action between the first baffle and the second baffle, thereby washing and removing the residual sulfides in the exhaust gas. Since the washing liquid sprayed from the nozzle in the spray mechanism is in atomized form and has a fixed moving direction, the contact time with the ship's exhaust gas is short. The scrubber uses a pressurized method to accelerate the molecular movement rate to improve the cleaning efficiency. Although it has a certain effect on improving the washing efficiency, the improvement in the molecular movement rate is not obvious and can only be achieved under ultra-high pressure. The cost of high-pressure washing is high and washing needs to be done in batches, resulting in reduced washing efficiency.

[0008] Therefore, a new type of ship exhaust gas desulfurization washing tower can be used to solve the shortcomings of the existing technology. Summary of the invention

[0009] The purpose of the present invention is to solve the problems existing in the prior art and to propose a ship exhaust desulfurization scrubber.

[0010] In order to achieve the above object, the present invention adopts the following technical solutions:

[0011] A ship exhaust desulfurization scrubber comprises a base, an absorption tube fixedly mounted on the base, and an air injection valve fixedly connected to a side wall of the absorption tube;

[0012] An absorption part, used for absorbing sulfur oxides in the tail gas injected into the absorption cylinder through the gas injection valve, the absorption cylinder is filled with a washing liquid, the washing liquid in the absorption cylinder is circulated through a circulation device, and an absorption assembly is installed in the absorption cylinder;

[0013] The spray part is used to spray and wash the tail gas after the absorption part has completed the absorption. The spray part includes a washing cylinder fixedly installed on the upper part of the absorption cylinder. The washing cylinder is equipped with a spray component and a spray component. The spray component is used to spray and purify. The spray component is used to generate a vortex in the washing cylinder.

[0014] The drying part is used to dry the tail gas after washing and purification, remove moisture in the tail gas, and ensure that the discharged tail gas is dry tail gas. The drying part includes a drying cylinder fixedly installed on the upper part of the washing cylinder, and a plurality of water collecting plates are fixedly installed in the drying cylinder.

[0015] Preferably, the absorption assembly includes a partition fixedly mounted on the bottom of the absorption cylinder, a plurality of air ducts are fixedly mounted through the partition, each of the air ducts is fixedly connected to an air outlet elbow at the top, a plurality of baffles are rotatably mounted on the base, each of the baffles extends into the corresponding air duct, an air blocking plate is fixedly mounted on the bottom of the plurality of air ducts, a plurality of through holes matching the corresponding air ducts are formed on the air blocking plate, and the bottom of the air blocking plate is flush with the bottom of the air duct.

[0016] Preferably, the end face of the baffle is V-shaped, and the top height of the baffle is located in the middle of the air duct, and the liquid level of the washing liquid inside the absorption cylinder is lower than the bottom position of the air duct.

[0017] Preferably, the spray assembly includes a bottom pipe fixedly mounted on the inner wall of the washing drum, the bottom pipe is fixedly connected to a ring-shaped pipe sleeve through a plurality of pipes, a top pipe is rotatably mounted on the ring-shaped pipe sleeve, the bottom pipe is fixedly connected to a water inlet pipe, the water inlet pipe extends out of the washing drum, the bottom pipe and the top pipe are fixedly connected to a plurality of staggered pipes, each of the staggered pipes is fixedly mounted with a plurality of spray heads, an annular hole is opened at the bottom of the bottom pipe, a water curtain plate matching the annular hole is fixedly mounted at the bottom of the bottom pipe, and a driving mechanism matching the bottom pipe is mounted on the washing drum.

[0018] Preferably, the driving mechanism includes a motor fixedly mounted on the outside of the washing drum, a rotating shaft is fixedly mounted on the motor driving shaft, an incomplete rubber disc matching with the top pipe is fixedly mounted on the rotating shaft, a circular hole is opened on the side wall of the washing drum, and a sealing sleeve matching with the rotating shaft is fixedly mounted in the circular hole.

[0019] Preferably, the injection assembly includes a fixing frame fixedly mounted between a plurality of staggered tubes on the top pipe, a water pipe is rotatably mounted on the fixing frame, a connecting body is fixedly mounted on the water pipe, an inner water outlet tube connected to the water pipe is fixedly mounted on the connecting body, a diverter tube is fixedly mounted on the inner water outlet tube, a plurality of rows of water spray holes are provided on the diverter tube, a plurality of dispersion disks matching the corresponding water spray holes are fixedly mounted on the diverter tube, the diverter tube and the inner water outlet tube are fixed by fixing bolts, and a disturbance mechanism is mounted on the connecting body.

[0020] Preferably, the disturbance mechanism comprises a plurality of blades rotatably mounted on a connecting body, each of the blades is fixedly mounted with a rotating disk for rotation, and a driving structure cooperating with the plurality of blades is mounted on the fixed frame.

[0021] Preferably, the driving structure comprises a second fixing frame fixedly mounted between a plurality of staggered tubes on the bottom tube, a cavity is arranged inside the second fixing frame, the corresponding staggered tubes are connected to the cavity, the water pipe is connected to the cavity, and the water pipe is rotatably connected to the second fixing frame, a hollow shaft is rotatably mounted on the second fixing frame, the shaft is fixedly connected to the first fixing frame, the water pipe is located inside the hollow shaft, the shaft is connected to the first fixing frame via a positive one-way bearing, and the connector is fixedly connected to the shaft;

[0022] A bracket is fixedly installed on the top of the fixing frame, a reverse one-way bearing is fixedly installed on the bracket, a rubber ring is fixedly installed on the reverse one-way bearing, a rubber ring matching the rubber ring is fixedly installed on each of the fan blades, and a reversing component is installed between the fixing frame and the shaft rod.

[0023] Preferably, the reversing component comprises an incomplete gear ring 2 fixedly mounted on the bottom of a fixing frame 1, an incomplete gear ring 1 is fixedly mounted on the shaft, and a gear meshing with both the incomplete gear ring 1 and the incomplete gear ring 2 is rotatably mounted on the fixing frame 2.

[0024] Preferably, the dispersion disk is bowl-shaped, and the periphery of the dispersion disk has a serrated design at the bowl mouth, and the inclination angle of the side of the dispersion disk is forty-five degrees.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] 1. When the exhaust gas desulfurization scrubber of the ship is purifying the exhaust gas, a rotatable baffle is set. The impact force of the exhaust gas injected by the gas injection valve can be used to rotate the baffle in the absorption tube, so as to stir the washing liquid, prevent the washing liquid in the absorption tube from generating vortex, increase the contact area between the exhaust gas and the washing liquid, and thus improve the washing efficiency.

[0027] 2. When the ship's exhaust gas desulfurization scrubber is purifying the exhaust gas, a spray component is set up to spray and purify the exhaust gas. The spray component can spray atomized washing liquid upward and downward at the same time. The downward washing liquid plays a preliminary purification role, while the upward washing liquid is consistent with the movement direction of the exhaust gas, which can increase the contact time between the exhaust gas and the washing liquid, thereby improving the purification efficiency of the exhaust gas and making the exhaust gas purification more thorough.

[0028] 3. When the exhaust gas desulfurization scrubber of the ship is purifying the exhaust gas, a water curtain covering layer can be formed above the spray assembly by setting up a spray assembly to further wash the exhaust gas. At the same time, the rotation of the fan blades on the spray assembly will form a disturbance inside the washing cylinder, so that the sulfur oxide molecules in the exhaust gas and the washing liquid molecules will collide with each other. The impact force will accelerate the reaction between the sulfur oxides and the washing liquid, thereby accelerating the desulfurization rate.

[0029] In summary, the present invention adopts two-way spraying to increase the contact time between the exhaust gas and the washing liquid, effectively improves the exhaust gas washing and purification efficiency, and makes the exhaust gas washing and purification more thorough. At the same time, the injection component is used to form air flow disturbance in the washing cylinder to increase the collision force between molecules, thereby accelerating the reaction rate and improving the desulfurization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0031] Figure 1 This is a schematic diagram of the structure of a ship exhaust desulfurization scrubber proposed by the present invention;

[0032] Figure 2 for Figure 1 An enlarged schematic diagram of the structure of the middle absorption part;

[0033] Figure 3 for Figure 1 An enlarged schematic diagram of the structure of the middle washing section;

[0034] Figure 4 for Figure 1 An enlarged schematic diagram of the structure of the middle drying section;

[0035] Figure 5 for Figure 1 A schematic detailed view of the plan structure along one of the angles;

[0036] Figure 6 for Figure 5 Detailed schematic diagram of the three-dimensional structure along the AA section;

[0037] Figure 7 for Figure 6 A schematic detailed cross-sectional view of the middle absorbing part;

[0038] Figure 8 for Figure 7 A detailed diagram of the enlarged structure of the central airway;

[0039] Fig. 9 for Figure 6 A cross-sectional enlarged schematic structural detail diagram of the middle washing section;

[0040] Fig.10 for Fig. 9Detailed schematic diagram of the structure after removing the drying cylinder, partition and air outlet elbow;

[0041] Fig.11 for Fig.10 Detailed schematic diagram of the exploded structure;

[0042] Fig.12 for Fig.11 An enlarged structural schematic detailed diagram of the middle fixing frame 1 and its surrounding components;

[0043] Fig.13 for Fig.12 A schematic detailed diagram of the structure after removing the sealing ring;

[0044] Fig.14 for Fig.13 The enlarged structural schematic details of the incomplete gear ring 1, the incomplete gear ring 2 and the gear;

[0045] Fig.15 for Fig.11 An enlarged schematic diagram of the structure of the middle spray assembly;

[0046] Fig.16 for Fig.15 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0047] Fig.17 for Fig.11 A schematic detailed diagram of the enlarged structure of the injection assembly;

[0048] Fig.18 for Fig.17 Detailed schematic diagram of the exploded structure;

[0049] Fig.19 for Fig.18 A detailed schematic diagram of the enlarged structure of the middle dispersion disk;

[0050] Fig. 20 for Figure 6 A cross-sectional enlarged schematic diagram of the structure of the middle drying section;

[0051] Fig.21 for Fig. 20 Detailed structural diagram.

[0052] In the figure: 1 absorption cylinder, 2 washing cylinder, 3 drying cylinder, 4 exhaust cylinder, 5 base, 6 air injection valve, 7 detection instrument, 8 pressure valve, 9 partition, 10 air guide pipe, 11 air outlet elbow, 12 baffle, 13 motor, 14 injection assembly, 15 spray assembly, 16 water inlet pipe, 17 water collecting plate, 18 bottom pipe, 19 top pipe, 20 annular pipe sleeve, 21 staggered pipe, 22 nozzle, 23 sealing sleeve, 24 incomplete rubber disc, 25 fixing frame 1, 26 dispersion disc, 27 water curtain plate, 28 fixing frame 2, 29 sealing ring, 30 bracket, 31 reverse one-way bearing, 32 rubber ring, 33 incomplete gear ring 1, 34 gear, 35 incomplete gear ring 2, 36 fan blade, 37 connector, 38 rubber ring, 39 water outlet inner pipe, 40 diversion cylinder, 41 fixing bolt. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] Example 1: Reference Figure 1-Figure 2 , Figure 5-Figure 8 , a ship exhaust desulfurization scrubber, comprising a base 5, an absorption tube 1 fixedly mounted on the base 5, and an air injection valve 6 fixedly connected to the side wall of the absorption tube 1;

[0055] The gas injection valve 6 can control the tail gas injection pressure according to the concentration of the washing liquid in the absorption cylinder 1. The greater the pressure, the more gas is injected per unit time. It is suitable for high-concentration washing liquid, and vice versa for low-concentration washing liquid. A tail gas sulfur oxide concentration detection instrument 7 is fixedly installed on the side wall of the absorption cylinder 1, which can detect the sulfur oxide concentration of the tail gas after washing with the washing liquid. Once the concentration exceeds the standard, it is necessary to use a high-concentration washing liquid in the later processing process.

[0056] The absorption part is used to absorb the sulfur oxides in the tail gas injected into the absorption cylinder 1 through the gas injection valve 6. The absorption cylinder 1 is filled with washing liquid, and the washing liquid in the absorption cylinder 1 is circulated through the circulation equipment. The absorption cylinder 1 is installed with an absorption component. The circulation equipment is an existing equipment and will not be elaborated here. It can circulate the washing liquid in the absorption cylinder 1 and maintain the concentration of the washing liquid in the absorption cylinder 1 at a certain concentration. If the concentration of the washing liquid in the absorption cylinder 1 is low, it can be adjusted by adding high-concentration washing liquid to the circulation equipment.

[0057] The absorption component includes a partition 9 fixedly installed at the bottom of the absorption cylinder 1, and a plurality of air ducts 10 are fixedly installed through the partition 9. The top of each air duct 10 is fixedly connected to an air outlet elbow 11. A plurality of baffles 12 are rotatably installed on the base 5, and each baffle 12 extends into the corresponding air duct 10. An air blocking plate is fixedly installed at the bottom of the plurality of air ducts 10. The air blocking plate is provided with a plurality of through holes matching the corresponding air ducts 10, and the bottom of the air blocking plate is flush with the bottom of the air duct 10.

[0058] The exhaust gas after partial sulfur oxide purification by the washing liquid in the absorption cylinder 1 will enter the air outlet elbow 11 through the air duct 10, and then be discharged into the washing cylinder 2 through the air outlet elbow 11. The purpose of setting the air outlet elbow 11 is to prevent the waste liquid after the washing liquid in the washing cylinder 2 washes the exhaust gas from entering the absorption cylinder 1 through the air duct 10.

[0059] The function of the air blocking plate is to allow the exhaust gas in the absorption tube 1 to completely enter the air duct 10 without any residue in the absorption tube 1, thereby avoiding incomplete purification due to residue problems and making the desulfurization purification more thorough.

[0060] The end surface of the baffle 12 is V-shaped, and the top of the baffle 12 is located in the middle of the air duct 10 . The liquid level of the washing liquid in the absorption cylinder 1 is lower than the bottom of the air duct 10 .

[0061] When the tail gas enters the washing liquid in the absorption tube 1, the washing liquid will flow, and the washing liquid will cause the baffle 12 to have a certain offset vibration, which can speed up the purification rate of the washing liquid, or rotate the baffle 12, which can cause the washing liquid to produce turbulence, thereby causing the tail gas and the washing liquid to collide, thereby improving the washing purification efficiency; the purpose of designing the height of the washing liquid level here is to prevent the washing liquid from entering the air duct 10 due to disturbance and affecting the air duct 10.

[0062] Embodiment 2: This embodiment is different from the embodiment 1 in that: Figure 1 , Figure 3 , Figure 5-Figure 6 , Figure 9-Figure 19 The spraying part is used for spraying and washing the tail gas after the absorption part has completed the absorption. The spraying part includes a washing cylinder 2 fixedly installed on the upper part of the absorption cylinder 1. The washing cylinder 2 is internally installed with a spraying component 14 and a spraying component 15. The spraying component 15 is used for spraying and purifying;

[0063] The spray assembly 15 includes a bottom pipe 18 fixedly installed on the inner wall of the washing tub 2, the bottom pipe 18 is fixedly connected to a ring-shaped pipe sleeve 20 through multiple pipes, a top pipe 19 is rotatably installed on the ring-shaped pipe sleeve 20, the bottom pipe 18 is fixedly connected to a water inlet pipe 16, the water inlet pipe 16 extends out of the washing tub 2, the bottom pipe 18 and the top pipe 19 are fixedly connected to multiple staggered pipes 21, each staggered pipe 21 is fixedly installed with multiple nozzles 22, an annular hole is opened at the bottom of the bottom pipe 18, a water curtain plate 27 matched with the annular hole is fixedly installed at the bottom of the bottom pipe 18, and a driving mechanism matched with the bottom pipe 18 is installed on the washing tub 2.

[0064] The water inlet pipe 16 is fixedly installed with a pressure valve 8, which can freely control the pressure of the water inlet pipe 16 entering the bottom pipe 18, thereby changing the range and spraying amount of the atomized washing liquid sprayed by the nozzle 22, so as to cope with washing liquids of different concentrations. High-concentration washing liquid can be sprayed at low pressure, and low-concentration washing liquid can be sprayed at high pressure.

[0065] The washing liquid in the water inlet pipe 16 will enter the bottom pipe 18, and then enter the annular pipe sleeve 20 through the pipeline. The top pipe 19 and the annular pipe sleeve 20 are connected by a mechanical sealing component (the mechanical sealing component is an existing rotating connection component, which is not elaborated here). There is a gap between the top pipe 19 and the annular pipe sleeve 20, and the washing liquid is filled in the gap. The top pipe 19 is provided with a hole connected to the gap, and the washing liquid will enter the top pipe 19 through the hole.

[0066] Part of the washing liquid entering the bottom pipe 18 will enter the annular pipe sleeve 20, and part will flow out from the water curtain plate 27 through the annular hole. The water curtain plate 27 is annular and will form a water curtain around the bottom pipe 18. This can prevent the exhaust gas from contacting the inner wall of the washing barrel 2 to form sulfur oxides adhesion, and there is no need to clean the inner wall of the washing barrel 2.

[0067] The driving mechanism includes a motor 13 fixedly mounted on the outside of the washing drum 2, a rotating shaft fixedly mounted on the driving shaft of the motor 13, an incomplete rubber disc 24 matched with the top pipe 19 fixedly mounted on the rotating shaft, a circular hole is opened on the side wall of the washing drum 2, and a sealing sleeve 23 matched with the rotating shaft is fixedly mounted in the circular hole.

[0068] The rotation of the driving shaft of the motor 13 will drive the incomplete rubber disc 24 to rotate through the rotating shaft. The incomplete rubber disc 24 will drive the top pipe 19 to rotate on the annular pipe sleeve 20 through the friction between the incomplete rubber disc 24 and the top pipe 19. Due to the special shape of the incomplete rubber disc 24, the top pipe 19 rotates intermittently, which can not only change the injection direction of the nozzle 22 on the top pipe 19, but also form pulses, increase the collision force between molecules, and thus improve the purification and desulfurization efficiency.

[0069] The sealing sleeve 23 adopts a mechanical structure seal to reduce friction and prevent air leakage.

[0070] The injection assembly 14 is used to generate a vortex in the washing drum 2. The injection assembly 14 includes a fixing frame 25 fixedly mounted on the top pipe 19 between a plurality of staggered tubes 21, a water pipe is rotatably mounted on the fixing frame 25, a connecting body 37 is fixedly mounted on the water pipe, a water outlet inner pipe 39 connected to the water pipe is fixedly mounted on the connecting body 37, a diverter cylinder 40 is fixedly mounted on the water outlet inner pipe 39, a plurality of rows of water spray holes are provided on the diverter cylinder 40, a plurality of dispersion plates 26 matching the corresponding water spray holes are fixedly mounted on the diverter cylinder 40, the diverter cylinder 40 and the water outlet inner pipe 39 are fixed by fixing bolts 41, and a disturbance mechanism is mounted on the connecting body 37.

[0071] The washing liquid entering the top pipe 19 will enter the connector 37 through the water pipe, and then enter the water outlet inner pipe 39 through the connector 37, enter the diverter tube 40 through the water outlet inner pipe 39, and be sprayed out through the water spray holes on the diverter tube 40. Due to the design of the dispersion disk 26, the sprayed washing liquid will be sprayed along the side wall of the dispersion disk 26. Since the dispersion disk 26 rotates and the contact time between the washing liquid and the dispersion disk 26 is long, there will be enough friction to drive the washing liquid to rotate, so that the washing liquid will generate centrifugal inertia with a certain speed after leaving the dispersion disk 26, which can form a vortex of the exhaust gas in the washing tube 2, increase the contact time between the exhaust gas and the washing liquid, and thus make the desulfurization purification more thorough.

[0072] The dispersion disk 26 is bowl-shaped, and the bowl edge of the dispersion disk 26 is serrated. The inclination angle of the side of the dispersion disk 26 is forty-five degrees. The serrated design allows the washing liquid to spread out at the moment of leaving the dispersion disk 26, increasing the washing liquid spray area, thereby improving the desulfurization purification efficiency.

[0073] The disturbance mechanism includes a plurality of blades 36 rotatably mounted on a connecting body 37 , each blade 36 is fixedly mounted with a rotating disk for rotation, and a driving structure matched with the plurality of blades 36 is mounted on a fixed frame 25 .

[0074] The fan blades 36 will rotate together with the connector 37. Since the fan blades 36 are in an inclined state, when the exhaust gas flows from bottom to top in the washing drum 2, it will encounter the obstruction of the fan blades 36 and change direction. The fan blades 36 are still rotating, so disturbances will be generated in the washing drum 2, increasing the frequency of molecular collisions, thereby improving the desulfurization purification efficiency.

[0075] The driving structure includes a second fixing frame 28 fixedly installed between a plurality of staggered tubes 21 on the bottom tube 18, a cavity is provided inside the second fixing frame 28, the corresponding staggered tubes 21 are connected to the cavity, the water pipe is connected to the cavity, and the water pipe is rotatably connected to the second fixing frame 28, a hollow shaft is rotatably installed on the second fixing frame 28, the shaft is fixedly connected to the first fixing frame 25, the water pipe is located inside the hollow shaft, the shaft is connected to the first fixing frame 25 through a positive one-way bearing, and the connector 37 is fixedly connected to the shaft;

[0076] The rotation of the top pipe 19 will drive the fixed frame 25 to rotate through the staggered pipe 21. The rotation of the fixed frame 25 will drive the shaft to rotate through the positive one-way bearing. The rotation of the shaft will drive the connecting body 37 to rotate, thereby driving the fan blades 36 to rotate along with the connecting body 37 and the top pipe 19 (at this time, the fan blades 36 rotate around the central axis of the connecting body 37).

[0077] A bracket 30 is fixedly installed on the top of the fixed frame 25, an anti-one-way bearing 31 is fixedly installed on the bracket 30, a rubber ring 32 is fixedly installed on the anti-one-way bearing 31, a rubber ring 38 matching the rubber ring 32 is fixedly installed on each fan blade 36, and a reversing component is installed between the fixed frame 25 and the shaft rod.

[0078] Since when the top tube 19 rotates forward, the fixing frame 1 25 and the connecting body 37 also rotate synchronously, there will be no relative displacement between the rubber ring 32 and the rubber ring 38, so the fan blade 36 will not rotate (at this time, the fan blade 36 rotates around its own central axis). Once the rotation direction of the top tube 19 changes, under the action of the positive single-phase bearing, the shaft rod will not be driven to rotate through the fixing frame 1 25. At this time, the rubber ring 32 rotates with the fixing frame 1 25, and the rubber ring 38 and the shaft rod will not rotate synchronously. In this way, the connecting body 37 can be rotated by the reversing component, and the direction of the connecting body 37 is opposite to that of the fixing frame 1 25. At this time, the friction between the rubber ring 32 and the rubber ring 38 will drive the fan blade 36 to rotate (the friction between the shaft rod and the fixing frame 28 is greater than the friction between the fan blade 36 and the connecting body 37, so that the fan blade 36 can be driven to rotate when the motor 13 reverses);

[0079] The purpose of rotating the fan blades 36 is not only to change the angle of the fan blades 36 to facilitate different degrees of disturbance, but also to rotate the fan blades 36 when cleaning the tower to avoid cleaning dead corners.

[0080] Embodiment 3: This embodiment is different from the technical solution of Embodiment 2 in that: Figure 1 , Figure 4 , Figure 5-Figure 6 , Figure 20-21The drying part is used to dry the exhaust gas after washing and purification, remove moisture in the exhaust gas, and ensure that the discharged exhaust gas is dry exhaust gas. The drying part includes a drying cylinder 3 fixedly installed on the upper part of the washing cylinder 2, and a plurality of water collecting plates 17 are fixedly installed in the drying cylinder 3.

[0081] Since the water collecting plate 17 adopts a wavy design, the contact area between the exhaust gas and the water collecting plate 17 is large and the drying efficiency is high. The water absorbed by the water collecting plate 17 will drip onto the partition 9. The top of the partition 9 is flush with the bottom of the washing drum 2. The side wall of the washing drum 2 is connected to a drain pipe, and the washing liquid and dried water after spraying and jet purification will be discharged through the drain pipe.

[0082] The reversing component includes an incomplete gear ring 2 35 fixedly mounted on the bottom of the fixing frame 1 25, an incomplete gear ring 1 33 fixedly mounted on the shaft, and a gear 34 meshing with the incomplete gear ring 1 33 and the incomplete gear ring 2 35 rotatably mounted on the fixing frame 2 28.

[0083] The reverse rotation of the fixed frame 25 will drive the incomplete gear ring 2 35 to rotate, and under the action of the gear 24, the incomplete gear ring 1 33 is driven to rotate in the reverse direction. Since the incomplete gear ring 1 33 and the incomplete gear ring 2 35 are both incompletely designed, the fan blades 36 can be driven to rotate intermittently, so that the fan blades 36 stay at a fixed angle for a period of time, increasing the cleaning time of the fan blades 36, so that the fan blades 36 can be cleaned more thoroughly. A sealing ring 29 is fixedly installed on the fixed frame 28, and the sealing ring 29 is rotatably connected to the fixed frame 25. The sealing ring 29 is used to protect the incomplete gear ring 1 33, the incomplete gear ring 2 35 and the gear 34. An exhaust pipe 4 is fixedly installed on the top of the drying cylinder 3 for exhaust gas discharge after purification.

[0084] The specific operation steps of this device are as follows:

[0085] First, the exhaust gas is injected into the washing liquid in the absorption tube 1 through the gas injection valve 6. The washing liquid will flow under the impact of the exhaust gas, and the washing liquid will cause the baffle 12 to vibrate or rotate to a certain extent. The exhaust gas undergoes preliminary sulfur oxide absorption and desulfurization purification in the washing liquid with turbulence.

[0086] The purified exhaust gas will then enter the washing tub 2 through the air duct 10 and the air outlet elbow 11, and the external washing liquid will enter the bottom pipe 18 through the water inlet pipe 16, and then enter the annular pipe sleeve 20 through the pipeline, and then enter the top pipe 19.

[0087] Part of the washing liquid entering the bottom pipe 18 will enter the annular pipe sleeve 20, and part will flow out from the water curtain plate 27 through the annular hole. The water curtain plate 27 is annular and will form an annular water curtain around the bottom pipe 18. This can prevent the exhaust gas from contacting the inner wall of the washing barrel 2 to form sulfur oxides adhesion, and there is no need to clean the inner wall of the washing barrel 2.

[0088] The washing liquid entering the top pipe 19 will enter the connector 37 through the water pipe, then enter the water outlet inner pipe 39 through the connector 37, enter the diverter tube 40 through the water outlet inner pipe 39, and be sprayed out through the water spray holes on the diverter tube 40. Due to the design of the dispersion disk 26, the sprayed washing liquid will be sprayed out along the side wall of the dispersion disk 26.

[0089] After the washing liquid enters the top pipe 19, it will be sprayed out through the nozzle 22 on the staggered pipe 21. At this time, the motor 13 is turned on, and the rotation (positive rotation) of the driving shaft of the motor 13 will drive the incomplete rubber disc 24 to rotate through the rotating shaft. The incomplete rubber disc 24 will drive the top pipe 19 to rotate on the annular pipe sleeve 20 through the friction between the top pipe 19. Due to the special shape of the incomplete rubber disc 24, the top pipe 19 rotates intermittently, which can not only change the spraying direction of the nozzle 22 on the top pipe 19, but also form a pulse, increase the collision force between molecules, and thus improve the purification and desulfurization efficiency.

[0090] The rotation of the top pipe 19 will drive the fixed frame 25 to rotate through the staggered pipe 21, and the rotation of the fixed frame 25 will drive the shaft to rotate through the positive one-way bearing. The rotation of the shaft drives the connecting body 37 to rotate, thereby driving the fan blades 36 to rotate along with the connecting body 37 and the top pipe 19.

[0091] When the driving end of the motor 13 reverses, the rotation direction of the top pipe 19 changes. Under the action of the positive single-phase bearing, the shaft rod is not driven to rotate through the fixed frame 25. At this time, the rubber ring 32 rotates with the fixed frame 25, and the rubber ring 38 does not rotate synchronously with the shaft rod. In this way, the connecting body 37 can be rotated by the reversing component, and the direction of the connecting body 37 is opposite to the direction of the fixed frame 25. At this time, the friction between the rubber ring 32 and the rubber ring 38 will drive the fan blade 36 to rotate.

[0092] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ship exhaust gas desulfurization scrubber, comprising a base (5), characterized in that: It also includes an absorption cylinder (1) fixedly mounted on a base (5) and an air injection valve (6) fixedly connected to a side wall of the absorption cylinder (1); An absorption part, used for absorbing sulfur oxides in the tail gas injected into the absorption cylinder (1) through the gas injection valve (6), the absorption cylinder (1) containing a washing liquid, the washing liquid in the absorption cylinder (1) circulated through a circulation device, and an absorption component installed in the absorption cylinder (1); A spraying part, used for spraying and washing the tail gas after the absorption part has completed absorption, the spraying part comprising a washing cylinder (2) fixedly mounted on the upper part of the absorption cylinder (1), a spraying assembly (14) and a spraying assembly (15) being mounted inside the washing cylinder (2), the spraying assembly (15) being used for spraying and purifying, and the spraying assembly (14) being used for generating a vortex in the washing cylinder (2); The spray assembly (15) comprises a bottom pipe (18) fixedly mounted on the inner wall of a washing tub (2); an annular pipe sleeve (20) is fixedly connected to the bottom pipe (18) via a plurality of pipes; a top pipe (19) is rotatably mounted on the annular pipe sleeve (20); a water inlet pipe (16) is fixedly connected to the bottom pipe (18); the water inlet pipe (16) extends out of the washing tub (2); a plurality of staggered pipes (21) are fixedly connected to the bottom pipe (18) and the top pipe (19); a plurality of spray heads (22) are fixedly mounted on each of the staggered pipes (21); an annular hole is formed at the bottom of the bottom pipe (18); a water curtain plate (27) matched with the annular hole is fixedly mounted at the bottom of the bottom pipe (18); and a driving mechanism matched with the bottom pipe (18) is mounted on the washing tub (2); The driving mechanism comprises a motor (13) fixedly mounted on the outside of the washing drum (2); a rotating shaft is fixedly mounted on the driving shaft of the motor (13); an incomplete rubber disc (24) matching with the top pipe (19) is fixedly mounted on the rotating shaft; a circular hole is opened on the side wall of the washing drum (2); a sealing sleeve (23) matching with the rotating shaft is fixedly mounted in the circular hole; The injection assembly (14) comprises a fixing frame (25) fixedly mounted between a plurality of staggered tubes (21) on a top tube (19); a water pipe is rotatably mounted on the fixing frame (25); a connecting body (37) is fixedly mounted on the water pipe; a water outlet inner tube (39) connected to the water pipe is fixedly mounted on the connecting body (37); a flow divider (40) is fixedly mounted on the water outlet inner tube (39); a plurality of rows of water spray holes are formed on the flow divider (40); a plurality of dispersion discs (26) matched with corresponding water spray holes are fixedly mounted on the flow divider (40); the flow divider (40) and the water outlet inner tube (39) are fixedly fixed by fixing bolts (41); and a disturbance mechanism is mounted on the connecting body (37); The disturbance mechanism comprises a plurality of blades (36) rotatably mounted on a connecting body (37), each of the blades (36) being fixedly mounted with a rotating disk for rotation, and a driving structure matching the plurality of blades (36) being mounted on the fixing frame (25); The driving structure comprises a second fixing frame (28) fixedly mounted between a plurality of staggered tubes (21) located on the bottom tube (18), a cavity being provided inside the second fixing frame (28), the corresponding staggered tubes (21) being connected to the cavity, the water pipe being connected to the cavity, and the water pipe being rotatably connected to the second fixing frame (28), a hollow shaft being rotatably mounted on the second fixing frame (28), the shaft being fixedly connected to the first fixing frame (25), the water pipe being located inside the hollow shaft, the shaft being connected to the first fixing frame (25) via a positive one-way bearing, and the connector (37) being fixedly connected to the shaft; A bracket (30) is fixedly mounted on the top of the fixing frame (25), a reverse one-way bearing (31) is fixedly mounted on the bracket (30), a rubber ring (32) is fixedly mounted on the reverse one-way bearing (31), each of the fan blades (36) is fixedly mounted with a rubber ring (38) that matches the rubber ring (32), and a reversing component is mounted between the fixing frame (25) and the shaft rod; The reversing component comprises an incomplete gear ring 2 (35) fixedly mounted on the bottom of the fixing frame 1 (25), an incomplete gear ring 1 (33) fixedly mounted on the shaft, and a gear (34) meshing with the incomplete gear ring 1 (33) and the incomplete gear ring 2 (35) rotatably mounted on the fixing frame 2 (28); The drying section is used to dry the tail gas after washing and purification, remove moisture in the tail gas, and ensure that the discharged tail gas is dry tail gas. The drying section comprises a drying cylinder (3) fixedly mounted on the upper part of the washing cylinder (2), and a plurality of water collecting plates (17) are fixedly mounted in the drying cylinder (3).

2. The ship exhaust gas desulfurization scrubber according to claim 1, characterized in that: The absorption assembly comprises a partition (9) fixedly mounted on the bottom of the absorption cylinder (1), a plurality of air guide tubes (10) being fixedly mounted through the partition (9), the top of each of the air guide tubes (10) being fixedly connected to an air outlet elbow (11), a plurality of baffles (12) being rotatably mounted on the base (5), each of the baffles (12) extending into the interior of a corresponding air guide tube (10), a baffle plate being fixedly mounted on the bottom of the plurality of air guide tubes (10), a plurality of through holes being provided on the baffle plate and cooperating with the corresponding air guide tubes (10), and the bottom of the baffle plate being flush with the bottom of the air guide tube (10).

3. The ship exhaust gas desulfurization scrubber according to claim 2, characterized in that: The baffle (12) has an end face in a V-shape, and the top of the baffle (12) is located at a middle position of the air guide tube (10). The absorption cylinder (1) is filled with washing liquid, and the liquid level of the washing liquid is lower than the bottom position of the air guide tube (10).

4. The ship exhaust gas desulfurization scrubber according to claim 1, characterized in that: The dispersion plate (26) is bowl-shaped, and the periphery of the dispersion plate (26) has a sawtooth design at the bowl mouth, and the inclination angle of the side of the dispersion plate (26) is forty-five degrees.

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