CN116036763A - Smoke filter - Google Patents

Abstract

The present disclosure relates to a flue gas filtration device comprising: the first tank body is internally provided with a first cavity, the first tank body is provided with an air inlet, the air inlet is communicated with an air inlet pipe isolated from the first cavity, and the first tank body is provided with an air outlet and a liquid outlet which are communicated with the first cavity; the impeller is rotatably arranged in the first tank body, a one-way valve is arranged in the impeller, and an inlet of the one-way valve is communicated with the air inlet pipe; the second tank body is internally provided with a second cavity, an outlet of the one-way valve is communicated with the second cavity, wherein the first cavity is communicated with the second cavity through a communication structure, and the communication structure is used for spraying gas flowing through the first tank body to the impeller; the liquid pump is communicated with the second tank body through a liquid supply pipe; and the transmission assembly is used for transmitting and connecting the impeller with the liquid pump. Through the technical scheme, the solid particles in the carbon dioxide flue gas can be filtered.

Description

Smoke filter

technical field

The present disclosure relates to the field of smoke filtering, and in particular, relates to a smoke filtering device.

Background technique

my country's power industry is mainly thermal power, and my country's primary energy is mainly coal. This energy structure determines that my country's thermal power generation is mainly realized by burning coal.

Coal power will generate a large amount of carbon dioxide flue gas, and the emitted carbon dioxide can be stored for reuse, but the carbon dioxide flue gas generated by coal power is mixed with a large number of solid particles, which will affect the storage and reuse of carbon dioxide.

Contents of the invention

The purpose of the present disclosure is to provide a flue gas filtering device capable of filtering solid particles in carbon dioxide flue gas.

In order to achieve the above object, the present disclosure provides a flue gas filtering device, comprising: a first tank body, a first cavity is formed in the first tank body, an air inlet is provided on the first tank body, and the inlet The air port is connected with an air inlet pipe isolated from the first cavity, and the first tank body is provided with an air outlet and a liquid outlet communicated with the first cavity; an impeller, the impeller is rotatably arranged In the first tank body, a one-way valve is arranged in the impeller, and the inlet of the one-way valve communicates with the air inlet pipe; in the second tank body, a second cavity is formed in the second tank body, The outlet of the one-way valve communicates with the second cavity, wherein the first cavity communicates with the second cavity through a communication structure, and the communication structure is configured to transfer the gas flowing through itself Spraying to the impeller; a liquid pump, the liquid pump communicates with the second tank through a liquid supply pipe; and a transmission assembly, the impeller is connected to the liquid pump through the transmission assembly.

Optionally, the communication structure is configured as a plurality of spray holes provided on the second tank body, and the plurality of spray holes are arranged at intervals around the central axis of the impeller.

Optionally, the first tank body is arranged above the second tank body, and the spray holes are arranged gradually close to the central axis of the impeller from bottom to top.

Optionally, the smoke filter device further includes a delivery pipe, one end of the delivery pipe communicates with the outlet of the one-way valve, and the other end communicates with the second cavity, and the impeller is used to drive the The conveying pipe rotates, and the transmission assembly drives and connects the conveying pipe and the liquid pump.

Optionally, one end of the delivery pipe extending into the second cavity is provided with a guide surface, and the guide surface is used to guide the gas in the second cavity to flow to the communication structure.

Optionally, the lower end of the delivery pipe extends into the second cavity and has the guide surface, the guide surface is inclined upward along the direction from the middle of the delivery pipe to the edge, so as to guide the second cavity. The gas in the cavity flows to the communication structure.

Optionally, the transmission assembly includes a first transmission belt, a transmission shaft and a second transmission belt, one end of the first transmission belt passes through the second tank body and is sleeved on the delivery pipe, and the other end is sleeved on the The transmission shaft, one end of the second transmission belt is sleeved on the transmission shaft, and the other end is sleeved on the liquid pump.

Optionally, the second tank body includes an inner recess with an installation space, the conveying pipe passes through the installation space and communicates with the second cavity, and the outer wall of the second tank is provided with two first Opening, two second openings are opened on the peripheral wall of the inner recess, two communicating pipes are arranged in the second tank, the inner space of the communicating pipes is isolated from the second cavity, and each of the communicating pipes The pipes communicate with one of the first openings and one of the second openings, and the two opposite sections of the first transmission belt respectively pass through the two communicating pipes.

Optionally, the delivery tube is rotatably and sealingly connected to the inner recess.

Optionally, the air outlet is set higher than the liquid outlet.

Through the above technical solution, the flue gas filter device of the present disclosure is used to filter the carbon dioxide flue gas. First, the carbon dioxide flue gas is passed through the gas inlet, and then the flue gas flows to the impeller through the gas inlet pipe. The one-way valve of the impeller allows the flue gas to flow in one direction. Through the impeller, and has been into the second cavity, the second cavity will be pre-set with liquid such as water, after the carbon dioxide flue gas is introduced, the solid particles mixed in the flue gas will enter the water, and at the same time, the second cavity will pass through The washed flue gas will also re-enter the first cavity through the connecting structure, and spray to the impeller when entering the first cavity, and the ejected flue gas drives the impeller to rotate, and the rotation of the impeller can drive the liquid pump through the transmission assembly Operation, the liquid pump continuously passes the water into the second tank until it overflows from the connecting structure and enters the first cavity. When the water and liquid in the cavity are in contact, the solid particles in the flue gas will be carried by the liquid in the second cavity, and will be discharged from the liquid outlet after entering the first cavity, while the filtered and washed carbon dioxide flue gas will Discharged from the gas outlet, the solid particles mixed in the carbon dioxide flue gas collected from the gas outlet will be significantly reduced at this time. Therefore, the flue gas filter device of the present disclosure can effectively filter the solid particles in the carbon dioxide flue gas, which is beneficial to Post storage and reuse of carbon dioxide. In addition, when carbon dioxide flue gas is continuously introduced into the air inlet, through the cooperation of the connecting structure and the impeller, the transmission structure can continuously drive the liquid pump to operate, that is, the kinetic energy of carbon dioxide flue gas is effectively used, energy is saved, and the loss of carbon dioxide flue gas is reduced. Filtration cost.

Other features and advantages of the present disclosure will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the description, together with the following specific embodiments, are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the attached picture:

FIG. 1 is a schematic diagram of the overall structure of a smoke filter device according to an embodiment of the present disclosure;

Fig. 2 is a schematic structural view of an impeller of a smoke filter device according to an embodiment of the present disclosure;

Fig. 3 is a structural schematic diagram of a delivery pipe of a smoke filter device according to an embodiment of the present disclosure;

Fig. 4 is a schematic structural view of a transmission assembly of a smoke filter device according to an embodiment of the present disclosure;

Fig. 5 is a schematic structural view of the second opening of the smoke filter device according to the embodiment of the present disclosure;

Fig. 6 is a schematic structural view of the first opening of the smoke filter device according to the embodiment of the present disclosure;

Fig. 7 is a structural schematic diagram of a communication pipe of a smoke filter device according to an embodiment of the present disclosure.

Explanation of reference signs

1-the first tank; 11-the first cavity; 12-air inlet; 13-air inlet; 14-air outlet; 15-liquid outlet; 16-liquid outlet; 2-impeller; 21-one-way valve ; 211-valve wall; 212-spool; 22-passing space; 3-second tank; 32-Liquid storage part; 33-Second cavity; 34-Inner recess; 341-Communication port; 35-Installation space; 4-Liquid pump; 41-Liquid supply pipe; 52-transmission shaft; 53-second transmission belt; 6-conveying pipe; 61-guiding surface.

Detailed ways

Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

In the present disclosure, unless stated to the contrary, the used orientation words such as "up and down" usually refer to the relative "up and down" of the corresponding parts in the use state along the gravitational direction, and "up and down" respectively Corresponding to the upper and lower positions in Figure 2, "inner and outer" are "inner and outer" relative to the contour of the corresponding component itself, and "far and near" refer to the "far, outer" compared to the reference object. close". In addition, terms such as "first", "second" and the like used in the present disclosure are used to distinguish one element from another, and do not have sequence or importance. In the following description, when referring to the drawings, the same reference numerals in different drawings denote the same or similar elements unless otherwise explained. The above definitions are only used to explain and illustrate the present disclosure, and should not be construed as limiting the present disclosure.

According to a specific embodiment of the present disclosure, a smoke filter device is provided, as shown in FIG. 1 and FIG. 2 , the smoke filter device includes: a first tank body 1 , and a first cavity is formed in the first tank body 1 11. The first tank body 1 is provided with an air inlet 12, and the air inlet 12 is connected with an air inlet pipe 13 isolated from the first cavity 11, and the first tank body 1 is provided with an air outlet connected with the first cavity 11 14 and liquid outlet 15; impeller 2, impeller 2 is rotatably arranged in the first tank body 1, is provided with check valve 21 in impeller 2, and the entrance of check valve 21 communicates with air inlet pipe 13; The second tank body 3. A second cavity 33 is formed in the second tank body 3, and the outlet of the one-way valve 21 communicates with the second cavity 33, wherein the first cavity 11 communicates with the second cavity 33 through a communication structure, and the communication structure Set to spray the gas flowing through itself to the impeller 2; the liquid pump 4, the liquid pump 4 communicates with the second tank body 3 through the liquid supply pipe 41; and the transmission assembly 5, the impeller 2 communicates with the liquid pump 4 through the transmission assembly 5 Drive connection.

Through the above-mentioned technical solution, the flue gas filter device of the present disclosure is used to filter the carbon dioxide flue gas. First, the carbon dioxide flue gas is passed through the gas inlet 12, and then the flue gas flows to the impeller 2 through the gas inlet pipe 13, and the one-way valve 21 of the impeller 2 The flue gas is allowed to pass through the impeller 2 in one direction and enter the second cavity 33. The second cavity 33 is pre-set with a liquid such as water. After the carbon dioxide gas is introduced, the solid particles in the flue gas will enter At the same time, the washed flue gas in the second cavity 33 will also re-enter the first cavity 11 through the communication structure, and spray to the impeller 2 when entering the first cavity 11, and the impeller is driven by the ejected flue gas. 2, the rotation of the impeller 2 can drive the liquid pump 4 to operate through the transmission assembly 5, and the liquid pump 4 will continuously pass the water into the second tank 3 until it overflows from the connecting structure into the first cavity 11, here Simultaneously, the flue gas is still continuously entering the second cavity 33, and is constantly in contact with the water liquid in the second cavity 33, the solid particles in the flue gas will be carried by the liquid in the second cavity 33, and After entering the first cavity 11, it is discharged from the liquid outlet 15, and the filtered and washed carbon dioxide flue gas will be discharged from the gas outlet 14. At this time, the solid particles mixed in the carbon dioxide flue gas collected from the gas outlet 14 will be Therefore, the flue gas filtering device of the present disclosure can effectively filter the solid particles in the carbon dioxide flue gas, which is beneficial to the later storage and reuse of carbon dioxide. In addition, when carbon dioxide flue gas is continuously introduced into the air inlet 12, the transmission structure can continuously drive the operation of the liquid pump 4 through the cooperation of the communication structure and the impeller 2, that is, the kinetic energy of the carbon dioxide flue gas is effectively used, energy is saved, and carbon dioxide is reduced. The cost of flue gas filtration.

Wherein, as shown in Fig. 1 and Fig. 2, the first tank body 1 can be a cylindrical tank, the air inlet 12 is opened on the top of the first tank body 1, and one end of the air inlet pipe 13 is integrally connected with the surrounding wall of the air inlet 12, and the other end is connected to the wall of the air inlet 12. Extend down and extend into the first tank body 1, the axis of the first tank body 1 coincides with the axis of the air inlet pipe 13, the impeller 2 is located in the first tank body 1, and the bottom of the air inlet pipe 13 can be rotatably connected with the impeller 2 Sealed connection can also be that the bottom of the air inlet pipe 13 only contacts with the top of the impeller 2 and can slide relatively. The liquid outlet 15 communicates with and is fixedly provided with a liquid outlet pipe 16 to guide the outflowing water to a collection place. The one-way valve 21 can be configured as a Tesla valve and includes a valve wall 211 and a valve core 212. The impeller 2 is provided with a passage space 22. The peripheral wall of the passage space 22 forms the valve wall 211. The valve core 212 is fixed in the passage space 22 by a bracket. Inside. The liquid pump can be a centrifugal pump or other liquid pumps. The transmission assembly 5 is connected with the operating mechanism of the liquid pump 4, so that the rotation of the impeller 2 becomes the power source for the operation of the liquid pump 4. The present disclosure may also be applicable to filtering solid particles in other flue gases.

In an embodiment provided by the present disclosure, as shown in FIG. 2 , the structure of the communication structure may be a plurality of spray holes 311 arranged on the second tank body 3 , and the plurality of spray holes 311 are spaced around the central axis of the impeller 2 layout. Through the above-mentioned design method, the liquid in the second cavity 33 is sprayed from the nozzle hole 311 to the impeller 2, and thereby drives the impeller 2 to rotate. A plurality of nozzle holes 311 are arranged around the circumference of the impeller 2, which can effectively drive the impeller 2. turn. Wherein, the nozzle hole 311 communicates with the first cavity 11 and the second cavity 33 , and in other embodiments, the communication structure may be a nozzle or an air pipe.

In order to efficiently drive the impeller 2 to rotate quickly, in an embodiment provided by the present disclosure, as shown in FIG. 2 , the first tank body 1 is arranged above the second tank body 3 , and the spray holes 311 gradually approach the impeller from bottom to top. 2 central axis setting. Through the above-mentioned design method, the spray hole 311 is aligned with the impeller 2 for spraying, which is beneficial to the rotation of the impeller 2 . Wherein, the nozzle hole 311 has a length in the direction of its own extension, and the nozzle hole 311 is bent and arranged in the direction of its own length, and is arranged gradually close to the central axis of the impeller 2 along the direction from bottom to top, and the central axis of the impeller 2 is also the impeller 2. axis of rotation. In other embodiments, the spray hole 311 can be configured as a straight hole, and it is only necessary to arrange the spray hole 311 close to the impeller 2, or select the optimum spray position according to calculation, and set the spray hole 311 at this position.

In one embodiment provided by the present disclosure, as shown in FIGS. The cavity 33 is connected, the impeller 2 is used to drive the delivery pipe 6 to rotate, and the transmission assembly 5 is drivingly connected to the delivery pipe 6 and the liquid pump 4 . Through the above-mentioned design method, the delivery pipe 6 that rotates with the impeller 2 is provided. Since the delivery pipe 6 has a certain length, it can facilitate the connection of the transmission assembly 5, and it is also easy to realize the connection between the first tank body 1 and the second tank body 3. connected.

Wherein, as shown in Fig. 2 and Fig. 3, one end of the conveying pipe 6 can be fixedly connected with the impeller 2, and can also be clamped with the impeller 2 through a clamping structure, and only the rotation of the impeller 2 can drive the rotation of the conveying pipe 6 That's it. In other embodiments, the delivery pipe 6 may be fixedly connected to the first tank body 1 or the second tank body 3, the impeller 2 is fixedly connected to the air inlet pipe 13, and the air inlet pipe 13 is rotatably connected to the first tank body 1, The transmission assembly 5 is transmission-connected to the air inlet pipe 13 and the liquid pump 4 .

In order to enable the gas sent out from the delivery pipe 6 to be quickly guided to the communication structure after being in contact with the liquid in the second cavity 33 , in an embodiment provided by the present disclosure, refer to FIG. 2 and FIG. 3 . As shown, one end of the delivery pipe 6 protruding into the second cavity 33 is provided with a guide surface 61, and the guide surface 61 is used to guide the gas in the second cavity 33 to flow to the communication structure. Through the above design method, since the second tank body 3 has water liquid, when the smoke is discharged from the delivery pipe 6 into the second tank body 3, it will accumulate temporarily at the gas outlet end of the delivery pipe 6, which is not conducive to For the upward discharge of the smoke, the guide surface 61 is provided to guide the smoke sent out from the conveying pipe 6, so as to quickly guide the smoke to the connecting structure, which facilitates the quick discharge of the smoke into the first tank body 1.

In an embodiment provided by the present disclosure, as shown in FIG. 2 and FIG. 3 , the lower end of the delivery pipe 6 extends into the second cavity 33 and has a guide surface 61 . The direction is inclined upwards to guide the gas flow in the second cavity 33 to the communication structure. Through the above-mentioned design, the upwardly inclined guide surface 61 is convenient for quickly guiding the flue gas sent out from the delivery pipe 6 to the upper communication structure. Wherein, the guiding surface 61 may be an arc-shaped surface protruding away from the first tank body 1 , or may be an inclined surface.

In one embodiment provided by the present disclosure, as shown in FIGS. The second transmission belt 53 is sleeved on the transmission shaft 52 at one end and the liquid pump 4 at the other end. Through the above design method, when the impeller 2 rotates, it will drive the first transmission belt 51 to rotate, the rotation of the first transmission belt 51 will drive the transmission shaft to rotate, and the rotation of the transmission shaft 52 will drive the second transmission belt 53 to rotate, thereby driving the liquid pump 4 to operate .

Wherein, as shown in Fig. 2 and Fig. 4, an annular groove is opened on the peripheral wall of the conveying pipe 6, and the first transmission belt 51 is sleeved in the annular groove, so as to reduce the displacement of the first transmission belt 51 in the axial direction of the conveying pipe 6 possibility. The second transmission belt 53 is connected with the operating mechanism of the liquid pump 4. Taking the liquid pump 4 as a centrifugal pump as an example, the second transmission belt 53 is connected with the runner of the liquid pump 4 to drive the runner to rotate to realize the liquid pump 4 of the centrifugal pump structure. Operation, that is, the second transmission belt 53 drives the structure similar to the shaft to rotate, and plays the role of driving the motor. In other embodiments, the transmission assembly 5 may be a sprocket and chain transmission structure, and may also be combined with a gear transmission on the basis of a pulley transmission to realize a transmission connection.

In one embodiment provided by the present disclosure, as shown in FIG. 5 to FIG. 7 , the second tank body 3 includes an inner concave portion 34 with an installation space 35 , and the delivery pipe 6 communicates with the second cavity 33 through the installation space 35 , the outer wall of the second tank body 3 is provided with two first openings 312, the peripheral wall of the inner recess 34 is provided with two second openings 313, and the second tank body 3 is provided with two communicating pipes 314, and the inner space of the communicating pipes 314 Separated from the second cavity 33 , each communication pipe 314 communicates with a first opening 312 and a second opening 313 , and two opposite sections of the first transmission belt 51 respectively pass through the two communication pipes 314 . Through the above design method, when the first transmission belt 51 needs to be sleeved on the delivery pipe 6, the two sections of the first transmission belt 51 are respectively extended into the installation space 35 through the first opening 312, the connecting pipe 314 and the second opening 313, And it is sleeved on the conveying pipe 6 in the installation space 35 , so as to realize the connection between the first transmission belt 51 and the conveying pipe 6 . At this time, since the connecting pipe 314 isolates the first transmission belt 51 from the second cavity 33, the liquid in the second cavity 33 will basically not contact the first transmission belt 51, thus, the first transmission belt 51 can be effectively improved. service life. Here, in an optional embodiment, one end of the communication pipe 314 is in sealing connection with the inner recess 34 , and the other end is in sealing connection with the outer wall of the second tank body 3 .

Wherein, as shown in FIGS. 5 to 7 , the second tank body 3 includes a connecting portion 31 and a liquid storage portion 32 that are connected and communicated with each other. The connecting portion 31 is in a columnar structure and is located above the liquid storage portion 32 . Spherical, the inner concave part 34 is set at the connecting part 31 and is located on the top of the entire second tank body 3, the inner concave part 34 is sunken toward the direction close to the liquid storage part 32, and the first opening 312, the second opening 313 and the connecting pipe 314 are all provided on the connection part 31. The communication structure is arranged on the top of the second tank body 3 and is arranged around the recess 34, that is, a plurality of spray holes 311 are evenly distributed along the circumference of the recess 34, and the bottom end of the recess 34 is provided with a communication port 341, and the bottom end of the delivery pipe 6 passes through The communication port 341 extends into the second cavity 33 .

In order to prevent water from entering the inner recess 34, as shown in FIG. 2, the connecting portion 31 extends into the first tank body 1 and is fixedly connected with the first tank body 1. On the wall, when the water liquid enters the first tank body 1, it will be directly discharged from the liquid outlet 15 to the surroundings, and it will be discharged from the liquid outlet 15 without excessive accumulation, so the water will only flow in the connection part. 31 will not enter the inner recess 34. In other embodiments, a downwardly inclined chamfer may be provided on the edge of the connecting portion 31 away from the end of the liquid storage portion 32, and the inner side of the chamfer connects with the spray hole 311. In this way, the water liquid overflowing from the spray hole 311 is guided to the surroundings and discharged from the liquid outlet 15 so that it will not enter the inner recess 34 . In other embodiments, a cover plate can be provided on the top of the inner recess 34, and the cover plate seals the top of the inner recess 34 and is rotatably and sealingly connected with the delivery pipe 6, so as to prevent the water liquid from entering the first tank body 1. Entering into the inner concave portion 34 reduces the phenomenon that the water liquid wets the first transmission belt 51 and thus slips.

In one embodiment provided by the present disclosure, as shown in FIG. 2 , the delivery tube 6 is rotatably and sealingly connected to the inner concave portion 34 . Through the above-mentioned design method, when the delivery pipe 6 passes through the communication port 341 and extends into the second tank body 3, in order to prevent the water liquid from overflowing from the communication port 341, it is rotatably sealed and connected to the communication port 341. of blocking. Wherein, the delivery pipe 6 is rotatably and sealedly connected with the peripheral wall of the communication port 341 .

In an embodiment provided by the present disclosure, as shown in FIG. 2 , the gas outlet 14 is set higher than the liquid outlet 15 . Through the above-mentioned design method, the liquid outlet 15 is set lower, so that the water liquid can be discharged quickly after overflowing into the first tank body 1, and the air outlet 14 is set higher, so that the smoke can be discharged after the impeller 2 is driven to rotate. Wherein, the liquid outlet 15 can be arranged on the bottom wall of the first tank body 1 , and the gas outlet 14 can be located at the upper position of the peripheral wall of the first tank body 1 .

The specific implementation of the present disclosure is that when the carbon dioxide flue gas needs to be filtered, the carbon dioxide flue gas is passed through the gas inlet 12, and enters the second tank through the gas inlet pipe 13, the one-way valve 21 and the delivery pipe 6 Inside the body 3, the flue gas is discharged from the conveying pipe 6 and guided to the surrounding communication structure under the action of the guide surface 61, and discharged from the nozzle hole 311 to blow the impeller 2 to rotate, and the impeller 2 passes through the transmission assembly 5 while rotating. Drive the liquid pump 4 to run, and pump the water into the second tank body 3. After the water enters the second tank body 3, the carbon dioxide flue gas that passes into the second tank body 3 is washed, and the carbon dioxide in the flue gas The solid particles are taken away and discharged from the liquid outlet 15 after entering the first tank 1, while the filtered carbon dioxide flue gas is discharged from the gas outlet 14 after the impeller 2 is driven to rotate. The solid particles contained in the collected carbon dioxide flue gas are significantly reduced. Therefore, the flue gas filter device of the present disclosure can effectively filter the solid particles in the carbon dioxide flue gas, which is beneficial to the later storage and reuse of carbon dioxide. The present disclosure may also be applicable to filtering solid particles in other flue gases.

The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure. These simple modifications all belong to the protection scope of the present disclosure.

In addition, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner if there is no contradiction. The combination method will not be described separately.

In addition, various implementations of the present disclosure can be combined arbitrarily, as long as they do not violate the idea of the present disclosure, they should also be regarded as the content disclosed in the present disclosure.

Claims (10)

1. A smoke filter device, comprising:

the first tank body is internally provided with a first cavity, the first tank body is provided with an air inlet, the air inlet is communicated with an air inlet pipe isolated from the first cavity, and the first tank body is provided with an air outlet and a liquid outlet communicated with the first cavity;

the impeller is rotatably arranged in the first tank body, a one-way valve is arranged in the impeller, and an inlet of the one-way valve is communicated with the air inlet pipe;

the second tank body is internally provided with a second cavity, an outlet of the one-way valve is communicated with the second cavity, the first cavity is communicated with the second cavity through a communication structure, and the communication structure is used for spraying gas flowing through the first tank body to the impeller;

the liquid pump is communicated with the second tank body through a liquid supply pipe; and

and the impeller is in transmission connection with the liquid pump through the transmission assembly.

2. The smoke filter device of claim 1, wherein said communication structure is configured as a plurality of spray holes disposed on said second tank, a plurality of said spray holes being spaced about a central axis of said impeller.

3. The smoke filter device according to claim 2, wherein the first tank is disposed above the second tank, and the nozzle is disposed gradually closer to the central axis of the impeller from bottom to top.

4. A smoke filter device according to any one of claims 1-3, further comprising a duct, one end of said duct being in communication with the outlet of said one-way valve and the other end being in communication with said second cavity, said impeller being adapted to drive said duct in rotation, said transmission assembly drivingly connecting said duct with said liquid pump.

5. The smoke filter device of claim 4, wherein the end of said duct extending into said second cavity is provided with a guiding surface for guiding the gas in said second cavity to flow to said communication structure.

6. The smoke filter device of claim 5, wherein the lower end of said duct extends into said second cavity and has said guide surface sloping upwardly in the direction from the middle to the edge of said duct to direct the flow of gas in said second cavity to said communication structure.

7. The smoke filter device of claim 4, wherein the transmission assembly comprises a first transmission belt, a transmission shaft and a second transmission belt, one end of the first transmission belt passes through the second tank body and is sleeved on the conveying pipe, the other end of the first transmission belt is sleeved on the transmission shaft, one end of the second transmission belt is sleeved on the transmission shaft, and the other end of the second transmission belt is sleeved on the liquid pump.

8. The smoke filter device of claim 7, wherein said second tank comprises an inner concave portion having an installation space, said conveying pipe is connected to said second cavity through said installation space, two first openings are formed in the outer wall of said second tank, two second openings are formed in the peripheral wall of said inner concave portion, two communicating pipes are provided in said second tank, the space in said communicating pipe is isolated from said second cavity, each communicating pipe is connected to one of said first openings and one of said second openings, and two opposite segments of said first belt are connected to each other through two communicating pipes.

9. The smoke filter device of claim 8, wherein said duct is rotatably sealingly connected to said recess.

10. The smoke filter device of claim 1, wherein said air outlet is positioned higher than said liquid outlet.

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