Multi-section cooling tower filler device with cleaning structure

Abstract

The invention discloses a multi-section cooling tower filler device with a cleaning structure, relates to the technical field of cooling towers, and aims to solve the technical problem that a non-continuous flowing water film and an adsorbed dust film do not have hundred percent impact, so that the dust film on the surface of a filler structure is accumulated, and filler blockage is caused. The outer barrel comprises the outer barrel body, the outer barrel body comprises at least two outer lifting units, the inner sides of the outer lifting units are provided with two annular angle grooves with the cross section being 60 degrees, filler construction is conducted through the annular angle grooves, and a deformable movable barrel body can drive a step plate to form a passing gap with the movable barrel body; spraying water is divided into an outer surrounding flow and an inner surrounding flow through a gap to be in full contact with a filler structure, a continuously flowing water film is formed, hundred percent impact between the continuously flowing water film and an adsorbed dust film is formed, the situation of filler blockage caused by dust film accumulation is avoided, and the service life of the filler is prolonged. Further, the condition of filler blockage caused by dust film accumulation is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of cooling towers, and in particular to a multi-stage cooling tower filling device with a cleaning structure. Background Art

[0002] A cooling tower is a device that uses water as a circulating coolant, absorbs heat from a system and discharges it into the atmosphere to lower the water temperature. Air cooling uses the flow of water and air to exchange heat to produce steam. The steam evaporates and takes away the heat to achieve the principles of evaporative heat dissipation, convection heat transfer and radiation heat transfer. It is an evaporative heat dissipation device that dissipates the waste heat generated in industry or refrigeration and air conditioning and lowers the water temperature to ensure the normal operation of the system.

[0003] The second packing device is a heat exchange structure in the cooling tower, in which a cross-flow cooling tower is used for illustration: water flows from top to bottom in the tower, while air flows horizontally from one side or both sides into the tower, presenting a vertical and orthogonal flow pattern. During the air flow in the tower body, the dust carried by the air is adsorbed by the wall of the packing structure to form a dust film, and there is no "100%" impact between the non-continuously flowing water film and the dust film after adsorption, resulting in the accumulation of dust film on the surface of the packing structure, which will cause the packing to be blocked in the long run; To this end, this application proposes a solution. Summary of the invention

[0004] The object of the present invention is to provide a multi-stage cooling tower filling device with a cleaning structure, which drives the step plate and the moving cylinder to form a through gap through a deformable moving cylinder, so that the spray water is divided into an outer flow and an inner flow through the through gap. The outer flow and the inner flow fully contact with the filling structure and form a continuously flowing water film, which constitutes a "100%" impact between the continuously flowing water film and the dust film after adsorption, thereby avoiding the clogging of the filling caused by the accumulation of dust film; and the rapid change of the through gap can be realized through the double composite structure to achieve the adjustment of the hot water flow rate, and finally adapt to form a stable heat exchange.

[0005] The object of the present invention can be achieved by the following technical solutions: A multi-stage cooling tower filling device with a cleaning structure, comprising an outer cylinder, the outer cylinder comprising at least two outer hanging units, two annular angle grooves with a cross section of 60° are arranged on the inner side of the outer hanging unit, and the filling is constructed through the annular angle grooves, the filling comprises a plurality of groups of moving cylinders and inner cylinders arranged on the inner side of the outer cylinder and having the same folding angle, a heat exchange channel is arranged between the outer cylinder and the inner cylinder, and a cleaning component for removing dust film is commonly arranged between the outer cylinder and the moving cylinder, and between the moving cylinder and the inner cylinder; The cleaning assembly includes a pair of guide plates symmetrically attached to the outside of the inner cylinder, the guide plates are provided with an upper guide platform facing outward at the outer corner ends of the inner cylinder, the other end of the guide plates is provided with a lower guide platform, and the inner side of the upper end of the movable cylinder is provided with a T-shaped piece abutting against the outer side of the lower guide platform.

[0006] It is further configured as follows: a step plate obliquely overlapped with the top of the moving cylinder is provided on the outer side of the upper end of the inner cylinder, a vertical top plate is also installed on the upper end of the lower guide platform, a transverse plate connected to the bottom of the step plate is obliquely overlapped on the top of the vertical top plate, and a guide gap is formed between two adjacent upper guide platforms.

[0007] It is further configured as follows: a fixing rod is transversely installed at the middle of the inner corner of the moving cylinder body, an angle ring with the same arc length as the moving cylinder body is installed at the outer end of the fixing rod, and the angle ring is inserted into the guide gap and abuts against the upper guide platform.

[0008] It is further configured as follows: air inlet holes are penetrated through the upper and lower sides of the outer cylinder corresponding to the annular angle groove, a sedimentation groove vertically aligned with the air inlet hole is opened on the outer side of the moving cylinder, and the air inlet hole is arranged perpendicularly to the angle edge of the outer cylinder.

[0009] It is further configured as follows: the external hanging unit also includes a connecting ring, the connecting ring is arranged at the upper end of the outer cylinder at the top, and a guide ring is installed at the lower end of the inner ring side of the connecting ring, and a guide chute is arranged on the inner side of the guide ring.

[0010] It is further configured as follows: an elastic connecting member is installed between the inner corners of the outer cylinder body and the movable cylinder body, and the elastic connecting member includes an outer supporting angle plate and an inner supporting angle plate arranged at both ends of the rubber plate, the outer supporting angle plate abuts against the inner corner of the outer cylinder body, and two inner supporting angle plates are symmetrically arranged and abut against the outside of the movable cylinder body.

[0011] It is further configured as follows: a pair of the rubber plates are respectively connected to the inner supporting angle plates, and the inner sides of the pair of the inner supporting angle plates close to each other are provided with support grooves, and the inner supporting angle plates are respectively abutted to the upper and lower ends of the outer corner of the moving cylinder body through the support grooves.

[0012] It is further configured as follows: the folded angle in the middle part of the outer side of the moving cylinder body is a female angle and is provided with a support member, the moving cylinder body is connected to the male angle in the middle part of the inner side of the outer cylinder body through the support member, and sealing plates connected to the outer side of the inner cylinder body are respectively installed on the upper and lower sides of the inner male angle of the moving cylinder body corresponding to the support member, and the sealing plates are abutted against the lower guide platform.

[0013] It is further configured that: the moving cylinder, the inner cylinder and the guide plate are provided with parallel arranged column holes, the column holes include long holes and symmetrical semicircular holes, and two adjacent groups of the column holes are staggered.

[0014] The present invention also provides a working method of a multi-stage cooling tower filling device with a cleaning structure, comprising the following steps: Step 1: When the cooling tower is running, air is blown into the moving cylinder through the air inlet, hot water is sprayed downward through the top, and the vertically blown air impacts the sedimentation tank outside the moving cylinder, driving the angle of the moving cylinder to become smaller; Step 2: After the angle of the moving cylinder becomes smaller, it drives the angle ring to move horizontally inward, and the angle ring pushes the guide plate to separate vertically up and down. The guide plate drives the vertical top plate upward through the transverse plate to push the moving step plate to deform inward, and form a passing gap parallel to the guide chute; Step 3: The spray hot water falls from the diversion chute and is divided at the gap. A part of the hot water hits the outside of the moving cylinder to form an outer flow, and the other part of the hot water hits between the moving cylinder and the inner cylinder to form an inner flow. Step 4: The peripheral flow impacts the outer cylinder and the moving cylinder to form a zigzag flow path, and the inner flow impacts the moving cylinder and the inner cylinder to form a zigzag flow path; Step 5: Multiple groups of air introduced through the external hanging units are fully in contact with the peripheral flow and the internal flow, thus completing the complete cooling of the spray water.

[0015] The present invention has the following beneficial effects: 1. The present invention is explained by using a cross-flow cooling tower and adopting an annular filler filling method. Air enters through the air inlet and forms a dust film on the filler surface in contact with the air. First, after the air enters, compression power is formed to deform the moving cylinder. After the moving cylinder is deformed, a gap is formed between the step plate and the moving cylinder, so that the spray water is divided into an outer flow and an inner flow through the gap. The outer flow and the inner flow fully contact the filler structure and form a continuous flowing water film, which constitutes a "100%" impact between the continuous flowing water film and the dust film after adsorption, thereby avoiding the blockage of the filler caused by the accumulation of dust film. At the same time, the air provides compression power to open the gap between the inner cylinder and the moving cylinder, which is beneficial to improve the heat exchange efficiency of the entire cooling tower; when the air is stopped, the moving cylinder returns to its original state and stops the heat exchange operation, so as to facilitate the replacement of the worn filler; 2. During the air entry process, the air enters perpendicularly to the outer cylinder, and the vertically introduced air impacts the "W"-shaped moving cylinder into a compressed state. When air with different pressures is applied during the heat exchange process, it can drive multiple groups of moving cylinders to be compressed into different states, that is, the angle at which the hot water impacts the packing structure also changes accordingly, that is, controlling the air entry pressure can achieve different gas-liquid contact modes, and ultimately achieve different heat exchange efficiencies; not only that, the moving cylinder drives the fixed rod and the angle ring to move horizontally inward, and the moving cylinder also moves inward, and the elastic connector is stretched and deformed. In this process: the outer supporting angle plate is always in contact with the annular angle groove on the inner wall of the outer cylinder, while the inner supporting angle plate is always in contact with the outer corner of the moving cylinder. After the rubber plate is deformed, the horizontal position does not change but the vertical position changes. In the process of the moving cylinder moving inward horizontally, the T-shaped piece is also driven to move. At this time, the T-shaped piece moves inward and pushes the guide plate to move upward, causing the vertical top plate to move upward at the bottom of the transverse plate. In the process of the transverse plate expanding to the outside of the top, that is: the change of the passing gap is realized by the double deformation displacement structure, so as to adjust the passing flow size after the hot water is diverted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 A schematic diagram of the structure of a multi-stage cooling tower filling device with a cleaning structure proposed by the present invention; Figure 2 A cross-sectional schematic diagram of a multi-stage cooling tower filling device with a cleaning structure proposed by the present invention; Figure 3 A multi-stage cooling tower filling device with a cleaning structure proposed by the present invention Figure 2 A in the enlarged view; Figure 4 A schematic cross-sectional view of the installation structure of the outer cylinder of a multi-stage cooling tower filling device with a cleaning structure proposed by the present invention; Figure 5 This is a cross-sectional view of the overall structure of the outer cylinder and the inner cylinder of a multi-stage cooling tower filling device with a cleaning structure proposed by the present invention; Figure 6 A schematic diagram of a combination of guide plates of a multi-stage cooling tower filling device with a cleaning structure proposed by the present invention; Figure 7A schematic diagram of the installation of a cleaning component of a multi-stage cooling tower filling device with a cleaning structure proposed by the present invention; Figure 8 A structural diagram of a cleaning component of a multi-stage cooling tower filling device with a cleaning structure proposed by the present invention; Fig. 9 A schematic diagram of the structure of an elastic connector of a multi-stage cooling tower filling device with a cleaning structure proposed by the present invention; Fig.10 A schematic diagram of the installation of a guide plate of a multi-stage cooling tower filling device with a cleaning structure proposed by the present invention; Fig.11 A side cross-sectional view of a cleaning component of a multi-stage cooling tower filling device with a cleaning structure proposed by the present invention; Fig.12 A schematic diagram of the impact deformation direction of a multi-stage cooling tower packing device with a cleaning structure proposed by the present invention; Fig.13 A partial cross-sectional view of the filler composition structure of a multi-stage cooling tower filler device with a cleaning structure proposed by the present invention.

[0018] In the figure: 1. outer cylinder; 2. inner cylinder; 3. air inlet; 4. connecting ring; 5. step plate; 6. moving cylinder; 7. fixing rod; 8. angle ring; 9. guide plate; 10. T-shaped piece; 11. guide chute; 12. guide ring; 13. vertical top plate; 14. transverse plate; 15. upper guide platform; 16. elastic connecting piece; 17. supporting piece; 18. lower guide platform; 19. sealing plate; 20. sedimentation trough; 21. guide gap; 22. outer supporting angle plate; 23. inner supporting angle plate; 24. support platform groove; 25. rubber plate; 26. column hole. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0020] Embodiment 1: In view of the technical problem that there is no 100% impact between the discontinuous flowing water film and the dust film after adsorption, which leads to the accumulation of dust film on the surface of the packing structure and thus causes the packing to be blocked, the following technical solution is proposed: Reference Figure 1 - Figure 5 and Fig.12 - Fig.13As shown, in this embodiment, a multi-stage cooling tower packing device with a cleaning structure includes an outer cylinder 1, the outer cylinder 1 includes at least two outer hanging units, two annular angle grooves with a cross section of 60° are arranged on the inner side of the outer hanging unit, and the packing is constructed through the annular angle grooves, the packing includes a plurality of groups of moving cylinders 6 and inner cylinders 2 arranged on the inner side of the outer cylinder 1 and having the same folding angle, and a heat exchange channel is arranged between the outer cylinder 1 and the inner cylinder 2; A cleaning assembly for removing dust film is provided between the outer cylinder 1 and the moving cylinder 6, and between the moving cylinder 6 and the inner cylinder 2. Parallel column holes 26 are provided on the moving cylinder 6, the inner cylinder 2 and the guide plate 9. The column holes 26 include long holes and symmetrical semicircular holes. Two adjacent groups of column holes 26 are staggered. The cleaning assembly includes a pair of guide plates 9 symmetrically attached to the outer side of the inner cylinder 2, an upper guide platform 15 facing outward is installed at the outer corner end of the guide plate 9 corresponding to the inner cylinder 2, a lower guide platform 18 is installed at the other end of the guide plate 9, and a T-shaped piece 10 abutting against the outer side of the lower guide platform 18 is installed on the inner side of the upper end of the moving cylinder 6; The upper and lower sides of the outer cylinder 1 corresponding to the annular angle groove are penetrated with air inlet holes 3, and the outer side of the moving cylinder 6 is provided with a sedimentation groove 20 vertically aligned with the air inlet hole 3. The air inlet hole 3 is arranged perpendicularly to the angle edge of the outer cylinder 1. When air enters vertically, it impacts the sedimentation groove 20 of the moving cylinder 6 to cause deformation of the moving cylinder 6. The external hanging unit also includes a connecting ring 4, which is arranged at the upper end of the outer cylinder 1 at the top; The external hanging unit is arranged on the inner wall of the tower body of the cooling tower, and is installed through the connecting ring 4 by hanging. A guide ring 12 is installed at the lower end of the inner ring side of the connecting ring 4. A guide chute 11 is arranged on the inner side of the guide ring 12. The sprayed hot water falls vertically on the guide ring 12, and is guided by the guide chute 11 to first hit the heat exchange channel outside the moving cylinder 6. When the moving cylinder 6 is deformed, the hot water enters the newly added heat exchange channel through the gap, forming a diversion heat exchange of the hot water to be cooled, so as to achieve the purpose of full contact between the hot water to be cooled and the air, thereby improving the heat exchange efficiency.

[0021] Basic principle: Refer to the attached Figure 2 and Figure 3 and Fig.12As shown, this embodiment is described by using a cross-flow cooling tower and an annular filler filling method. Air enters through the air inlet 3 and forms a dust film on the filler surface in contact with the air. First, after the air enters, compression power is formed to deform the moving cylinder 6. After the moving cylinder 6 is deformed, a gap is formed between the step plate 5 and the moving cylinder 6, so that the spray water is divided into an outer flow and an inner flow through the gap. The outer flow and the inner flow fully contact the filler structure and form a continuous flowing water film, which constitutes a "100%" impact between the continuous flowing water film and the dust film after adsorption, thereby avoiding the blockage of the filler caused by the accumulation of dust film. At the same time, the air provides compression power to open the gap between the inner cylinder 2 and the moving cylinder 6, which is beneficial to improving the heat exchange efficiency of the entire cooling tower. When the air is stopped, the moving cylinder 6 returns to its original state and stops the heat exchange operation, so as to facilitate the replacement of the worn filler. It should be noted here that the air enters perpendicularly to the outer cylinder 1, and the vertically introduced air impacts the "W"-shaped moving cylinder 6 into a compressed state. When air of different pressures is applied during the heat exchange process, multiple groups of moving cylinders 6 can be compressed into different states, that is, the angle at which the hot water impacts the packing structure also changes accordingly. In other words, different gas-liquid contact methods can be achieved by controlling the air entry pressure, and ultimately different heat exchange efficiencies can be achieved.

[0022] Embodiment 2: This embodiment optimizes the structure of the gap in Embodiment 1 to achieve the purpose of smoothly changing the packing structure and the hot water flow rate: Reference Figure 3 - Fig.11 As shown, a step plate 5 obliquely overlapped with the top of the moving cylinder body 6 is arranged on the outer side of the upper end of the inner cylinder body 2, a vertical top plate 13 is also installed on the upper end of the lower guide platform 18, a transverse plate 14 connected to the bottom of the step plate 5 is obliquely overlapped on the top of the vertical top plate 13, a guide gap 21 is formed between two adjacent upper guide platforms 15, a fixing rod 7 is transversely installed at the middle of the inner corner of the moving cylinder body 6, an angle ring 8 with the same arc length as the moving cylinder body 6 is installed on the outer end of the fixing rod 7, and the angle ring 8 is inserted into the guide gap 21 and abuts against the upper guide platform 15; An elastic connector 16 is installed between the inner corners of the outer cylinder 1 and the movable cylinder 6. The elastic connector 16 includes an outer supporting angle plate 22 and an inner supporting angle plate 23 arranged at both ends of a rubber plate 25. The outer supporting angle plate 22 abuts against the inner corner of the outer cylinder 1. Two inner supporting angle plates 23 are symmetrically arranged and abut against the outside of the movable cylinder 6. A pair of rubber plates 25 are respectively connected to the inner supporting angle plates 23. The inner sides of the pair of inner supporting angle plates 23 are both provided with support grooves 24. The inner supporting angle plates 23 are respectively abutted against the upper and lower ends of the outer corner of the movable cylinder 6 through the support grooves 24. The angle in the middle of the outer side of the moving cylinder body 6 is a female angle and is provided with a support 17. The moving cylinder body 6 is connected to the male angle in the middle of the inner side of the outer cylinder body 1 through the support 17. The upper and lower sides of the inner male angle of the moving cylinder body 6 corresponding to the support 17 are respectively provided with sealing plates 19 connected to the outer side of the inner cylinder body 2. The sealing plate 19 is in contact with the lower guide platform 18. The sealing plate 19 here is also one of the packing structures, which has the function of supporting the guide plate 9 at the bottom, and it is still elastic, and deforms with the moving cylinder body 6 after deformation.

[0023] Structural advantages: when air enters through the air inlet 3, it first impacts the moving cylinder body 6 and drives the annular angle groove of the moving cylinder body 6 to change. At this time, the moving cylinder body 6 drives the fixing rod 7 and the angle ring 8 to move inward horizontally, and the moving cylinder body 6 also moves inward, and the elastic connecting member 16 is stretched and deformed. In this process: the outer supporting angle plate 22 is always in contact with the annular angle groove of the inner wall of the outer cylinder body 1, and the inner supporting angle plate 23 is always in contact with the outer corner of the moving cylinder body 6. After the rubber plate 25 is deformed, the horizontal position does not change but the vertical position changes; in the process of the moving cylinder body 6 moving inward horizontally, it also drives the displacement of the T-shaped member 10. At this time, the T-shaped member 10 moves inward and pushes the guide plate 9 to move upward, prompting the vertical top plate 13 to move upward at the bottom of the transverse plate 14. In the process of the transverse plate 14 expanding to the outside of the top, the change of the through gap is realized, and the through gap is gradually parallel to the guide inclined groove 11 on the guide ring 12, so as to adjust the flow rate of the hot water diversion.

[0024] Embodiment 3: Combining Embodiment 1 and Embodiment 2, it can be seen that referring to Figure 1 - Fig.13 As shown, the present invention also provides a working method of a multi-stage cooling tower filling device with a cleaning structure, comprising the following steps: Step 1: When the cooling tower is in operation, air is blown into the moving cylinder 6 through the air inlet 3, and hot water is sprayed downward from the top. The vertically blown air impacts the settling tank 20 outside the moving cylinder 6. The air impacts inward through the settling tank 20, driving the angle of the annular angle groove inside the moving cylinder 6 to become smaller; Step 2: After the angle of the moving cylinder 6 becomes smaller, it drives the angle ring 8 to move horizontally inward, and the angle ring 8 pushes the guide plate 9 to separate vertically up and down. The guide plate 9 drives the vertical top plate 13 upward through the transverse plate 14 to push the step plate 5 to deform inward, that is, the step plate 5 is separated from the top of the moving cylinder 6, thereby forming a passing gap parallel to the guide chute 11; Step 3: Spray hot water vertically onto the diversion chute 11 and split at the gap, with one part of the hot water impacting the outer side of the moving cylinder 6 to form an outer peripheral flow, and the other part of the hot water impacting between the moving cylinder 6 and the inner cylinder 2 to form an inner peripheral flow; Step 4: The peripheral flow and the inner peripheral flow entering from the tangential direction enter the heat exchange channel respectively, wherein the peripheral flow impacts the outer cylinder 1 and the moving cylinder 6 to form a zigzag flow path, and the inner peripheral flow impacts the moving cylinder 6 and the inner cylinder 2 to form a zigzag flow path; Step 5: Multiple groups of unit air flows introduced through the external hanging unit are fully in contact with the peripheral flow and the inner flow, and the continuous flowing water film formed achieves a "100%" impact with the adsorbed dust film, thereby avoiding the blockage of the packing caused by the accumulation of dust film, and thus completing the complete cooling of the spray water.

[0025] In summary: the deformable moving cylinder 6 can drive the step plate 5 and the moving cylinder 6 to form a passing gap, so that the spray water is divided into an outer flow and an inner flow through the passing gap. The outer flow and the inner flow fully contact the packing structure and form a continuously flowing water film. The flowing water film continuously washes the dust film adhered to the surface of the packing structure, forming a 100% impact between the continuous flowing water film and the dust film after adsorption, thereby avoiding the packing blockage caused by dust film accumulation; and the double composite structure can realize the rapid change of the passing gap to achieve the adjustment of the hot water passing flow rate, and finally adapt to form a stable heat exchange.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods.

Claims

1. A multi-stage cooling tower filling device with a cleaning structure, characterized in that: The invention comprises an outer cylinder (1), wherein the outer cylinder (1) comprises at least two outer hanging units, wherein two annular angle grooves with a cross section of 60° are arranged on the inner side of the outer hanging units, and fillers are constructed through the annular angle grooves, wherein the fillers comprise a plurality of groups of movable cylinders (6) and inner cylinders (2) arranged on the inner side of the outer cylinder (1) and having the same fold angle, wherein a heat exchange channel is arranged between the outer cylinder (1) and the inner cylinder (2), and a cleaning component for removing dust film is arranged between the outer cylinder (1) and the movable cylinder (6), and between the movable cylinder (6) and the inner cylinder (2); The cleaning assembly comprises a pair of guide plates (9) symmetrically attached to the outside of the inner cylinder (2); an upper guide platform (15) facing outward is installed at the outer corner end of the guide plate (9) corresponding to the inner cylinder (2); a lower guide platform (18) is installed at the other end of the guide plate (9); and a T-shaped piece (10) abutting against the outer side of the lower guide platform (18) is installed on the inner side of the upper end of the movable cylinder (6).

2. A multi-stage cooling tower filling device with a cleaning structure according to claim 1, characterized in that: A step plate (5) obliquely overlapped with the top of the moving cylinder (6) is arranged on the outer side of the upper end of the inner cylinder (2); a vertical top plate (13) is also installed on the upper end of the lower guide platform (18); a transverse plate (14) connected to the bottom of the step plate (5) is obliquely overlapped on the top of the vertical top plate (13); and a guide gap (21) is formed between two adjacent upper guide platforms (15).

3. A multi-stage cooling tower filling device with a cleaning structure according to claim 2, characterized in that: A fixing rod (7) is transversely mounted at the middle of the inner corner of the moving cylinder body (6), and an angle ring (8) having the same arc length as the moving cylinder body (6) is mounted at the outer end of the fixing rod (7). The angle ring (8) is inserted into the guide gap (21) and abuts against the upper guide platform (15).

4. A multi-stage cooling tower filling device with a cleaning structure according to claim 1, characterized in that: The outer cylinder (1) is provided with air inlet holes (3) on both upper and lower sides corresponding to the annular angle groove, and the outer side of the moving cylinder (6) is provided with a sedimentation groove (20) vertically aligned with the air inlet hole (3). The air inlet hole (3) is arranged perpendicularly to the angled edge of the outer cylinder (1).

5. A multi-stage cooling tower filling device with a cleaning structure according to claim 4, characterized in that: The external hanging unit further comprises a connecting ring (4), the connecting ring (4) being arranged at the upper end of the outer cylinder (1) at the top, and a guide ring (12) being installed at the lower end of the inner ring side of the connecting ring (4), and a guide chute (11) being arranged on the inner side of the guide ring (12).

6. A multi-stage cooling tower filling device with a cleaning structure according to claim 1, characterized in that: An elastic connecting member (16) is installed between the inner corners of the outer cylinder (1) and the movable cylinder (6), and the elastic connecting member (16) comprises an outer supporting angle plate (22) and an inner supporting angle plate (23) arranged at both ends of the rubber plate (25), the outer supporting angle plate (22) abuts against the inner corner of the outer cylinder (1), and two inner supporting angle plates (23) are symmetrically arranged and abut against the outside of the movable cylinder (6).

7. A multi-stage cooling tower filling device with a cleaning structure according to claim 6, characterized in that: A pair of rubber plates (25) are respectively connected to the inner angle plates (23); the inner sides of the pair of inner angle plates (23) adjacent to each other are provided with support grooves (24); the inner angle plates (23) are respectively abutted against the upper and lower ends of the outer corners of the moving cylinder body (6) through the support grooves (24).

8. A multi-stage cooling tower filling device with a cleaning structure according to claim 1, characterized in that: The folded corner in the middle of the outer side of the movable cylinder body (6) is a female corner and is provided with a support member (17); the movable cylinder body (6) is connected to the male corner in the middle of the inner side of the outer cylinder body (1) via the support member (17); sealing plates (19) connected to the outer side of the inner cylinder body (2) are respectively installed on the upper and lower sides of the inner male corner of the movable cylinder body (6) corresponding to the support member (17); the sealing plates (19) are in contact with the lower guide platform (18).

9. A multi-stage cooling tower filling device with a cleaning structure according to any one of claims 1 to 8, characterized in that: The movable cylinder body (6), the inner cylinder body (2) and the movable guide plate (9) are provided with parallel arranged bar holes (26), the bar holes (26) comprising long bar holes and symmetrical semicircular holes, and two adjacent groups of bar holes (26) are staggered.

10. A working method of a multi-stage cooling tower filling device with a cleaning structure, used for a multi-stage cooling tower filling device with a cleaning structure as claimed in any one of claims 1 to 9, characterized in that: The steps include: Step 1: When the cooling tower is in operation, air is blown into the moving cylinder (6) through the air inlet (3), hot water is sprayed downward through the top, and the vertically blown air impacts the settling trough (20) outside the moving cylinder (6), thereby driving the folding angle of the moving cylinder (6) to become smaller; Step 2: After the angle of the moving cylinder (6) becomes smaller, it drives the angle ring (8) to move horizontally inward, and the angle ring (8) pushes the guide plate (9) to separate vertically, and the guide plate (9) drives the vertical top plate (13) to move upward through the transverse plate (14) to push the step plate (5) to deform inward, thereby forming a passing gap parallel to the guide chute (11); Step 3: the spray hot water falls from the guide chute (11) and is split at the gap, with one part of the hot water impacting the outside of the moving cylinder (6) to form an outer flow, and the other part of the hot water impacting between the moving cylinder (6) and the inner cylinder (2) to form an inner flow; Step 4: the peripheral flow impacts the space between the outer cylinder (1) and the moving cylinder (6) to form a zigzag flow path, while the inner peripheral flow impacts the space between the moving cylinder (6) and the inner cylinder (2) to form a zigzag flow path; Step 5: Multiple groups of air introduced through the external hanging units are fully in contact with the peripheral flow and the internal flow, thus completing the complete cooling of the spray water.

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