White smoke preventing cooling tower

Abstract

The application discloses a white smoke preventing type cooling tower and belongs to the technical field of water circulation cooling. The cooling tower comprises a cooling tower body, an air extractor and a white smoke preventing and mist eliminating module. The white smoke preventing and mist eliminating module comprises a wind collecting cylinder, an upper mist eliminating plate, soft honeycomb mist eliminating blocks and a lower mist eliminating plate. The lower mist eliminating plate is fixed to the lower end of the wind collecting cylinder. The soft honeycomb mist eliminating blocks are located in the wind collecting cylinder and are supported on the lower mist eliminating plate. The upper mist eliminating plate is located in the wind collecting cylinder and is above the soft honeycomb mist eliminating blocks. The sliding plates on the left and right sides of the upper mist eliminating plate are connected with the upper ends of electric push rods outside the wind collecting cylinder through the sliding slots on the left and right side walls of the wind collecting cylinder. The electric push rods drive the sliding plates to move downwards along the sliding slots. The sliding plates drive the upper mist eliminating plate to move downwards, and the soft honeycomb mist eliminating blocks are extruded to extrude water in the soft honeycomb mist eliminating blocks. The white smoke preventing and mist eliminating module is additionally arranged in the cooling tower body, water in the air discharged from the top of the cooling tower is reduced, the generation of white smoke is prevented, and water resources are saved. Especially, the structure of the white smoke preventing and mist eliminating module is improved, and the white smoke preventing effect is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of water circulation cooling, in particular to a white smoke prevention cooling tower. Background Art

[0002] Conventional water circulation cooling devices include a cooling tower, an exhaust device, a spray device, a packing, and a water storage tank. The exhaust device is located at the top of the cooling tower, and the spray device is located below the exhaust device. The spray device includes a horizontally arranged spray pipe and a plurality of nozzles mounted on the spray pipe. The packing is located within the cooling tower and below the spray device. The water storage tank is also located within the cooling tower and below the packing. During use, cooling water from the air conditioning equipment of the central air conditioning system flows into the spray pipe and is sprayed downwardly into the packing through the nozzles of the spray pipe. At this time, the cooling water sprayed through the packing forms a heat exchange with the cold air flowing through the packing, and after being cooled, it flows into the water storage tank and then flows back through the water storage tank to the air conditioning equipment of the central air conditioning system.

[0003] Circulating water cooling occurs through contact between water and air, resulting in three processes: evaporative heat dissipation, contact heat dissipation, and radiative heat dissipation. Evaporative heat dissipation occurs when water forms large and small droplets or a very thin film within the cooling equipment, increasing its contact area with the air and prolonging its contact time, thereby enhancing evaporation. This allows the water vapor to remove the heat required for vaporization, thereby cooling the water. Contact heat dissipation occurs when water comes into contact with cooler air. Due to the temperature difference, the heat in the hot water is transferred to the air, lowering the water temperature. Radiative heat dissipation occurs when heat energy is transmitted through electromagnetic waves, without the need for a heat transfer medium.

[0004] However, the above-mentioned evaporative heat dissipation method transports hot water to the packing layer through a water circulation pipe, so that the hot water falls on the packing layer and then disperses and falls. At the same time, a fan is installed at the top of the cooling tower body, and an air inlet is set on the side wall of the cooling tower body where the packing layer is located. External cold air is sucked in and passes through the packing layer to exchange heat and mass with the water. When the air is discharged from the top of the cooling tower body, it will carry away a large amount of water, forming water mist outside the cooling tower. The discharged water mist will be seen as "white smoke" under low ambient temperature. "White smoke" not only increases the humidity outside the cooling tower, but also wastes water resources. Summary of the Invention

[0005] The present invention aims to provide a white smoke-proof cooling tower. The cooling tower improves the white smoke-proof effect and can reduce the water in the air discharged from the top of the cooling tower, thereby preventing the generation of "white smoke" and saving water resources.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A white smoke anti-cooling tower comprises a cooling tower body, an exhaust fan and a white smoke anti-mist module. The white smoke anti-mist module is located in the cooling tower body. The exhaust fan is arranged at the top of the cooling tower body. An air inlet is arranged on the side wall of the cooling tower body. The white smoke anti-mist module comprises an air collecting tube, an upper mist dispelling plate, a soft honeycomb mist dispelling block and a lower mist dispelling plate. The lower mist dispelling plate is fixed at the lower end of the air collecting tube. The soft honeycomb mist dispelling block is located in the air collecting tube and supported on the lower mist dispelling plate. The upper mist dispelling plate is located in the air collecting tube and supported on the soft honeycomb mist dispelling plate. Above the block, vertical sliding slots are provided on the left and right side walls of the wind collecting tube, and slide plates are provided on the left and right sides of the upper demisting plate. The slide plates extend through the sliding slots to the outside of the wind collecting tube and are connected to the upper end of the electric push rod. The lower end of the electric push rod is provided on the closing plate, and the closing plate closes the area between the lower end of the wind collecting tube and the inner wall of the cooling tower body. The electric push rod drives the slide plate to move downward along the sliding slot, and the slide plate drives the upper demisting plate to move downward, squeezing the soft honeycomb demisting block to squeeze out the water in the soft honeycomb demisting block.

[0008] Furthermore, a plurality of upper oblique airflow channels are distributed on the upper demisting plate, and a plurality of lower oblique airflow channels are distributed on the lower demisting plate.

[0009] Furthermore, the inclination direction of the upper oblique airflow channel is opposite to the inclination direction of the lower oblique airflow channel.

[0010] Furthermore, a white smoke prevention cooling tower also includes a filler module and a spray assembly, wherein the filler module and the spray assembly are located in the cooling tower body, and the spray assembly is located above the filler module and below the white smoke prevention and mist elimination module.

[0011] Furthermore, a white smoke-proof cooling tower also includes a water collecting tank, which is arranged in the cooling tower body and below the filler module, and the air inlet is located between the filler module and the water collecting tank.

[0012] Furthermore, it also includes a variable frequency circulation pump and a water circulation pipeline. One end of the water circulation pipeline extends into the cooling tower body and is connected to the spray assembly, and the other end of the water circulation pipeline is connected to the side bottom of the water collection tank. The variable frequency circulation pump is arranged on the water circulation pipeline, and the water in the water circulation pipeline is used to take away the heat in the heating equipment.

[0013] Furthermore, the packing module is a packing module with adjustable packing gap.

[0014] Furthermore, the packing gap adjustable packing module includes a fixed frame, a packing plate, a rotating shaft, a swing arm, a transmission shaft, a packing gap adjustment plate and a gap adjustment electric push rod, the fixed frame is fixed on the inner wall of the cooling tower body, the upper surface of the fixed frame is spaced apart with hanging grooves, the upper end of the packing plate is fixed on the rotating shaft, the lower end of the packing plate is a free end, one end of the rotating shaft is located in the hanging groove on the rear side of the fixed frame, the other end of the rotating shaft extends from the hanging groove on the rear side of the fixed frame to the outside of the fixed frame and is connected to one end of the swing arm, the other end of the swing arm is connected to one end of the transmission shaft, the other end of the transmission shaft extends into the elongated hole of the packing gap adjustment plate, the gap adjustment electric push rod is connected to the packing gap adjustment plate, the gap adjustment electric push rod pushes the packing gap adjustment plate, the packing gap adjustment plate drives the swing arm through the transmission shaft, the swing arm drives the rotating shaft, and the rotating shaft drives the packing plate to rotate to adjust the gap between adjacent packing plates.

[0015] Furthermore, a shielding plate is provided above the gap-adjusting electric push rod, and the shielding plate closes the gap between the fixing frame and the cooling tower body to prevent water from flowing onto the gap-adjusting electric push rod.

[0016] Furthermore, the fixed frame is provided with two or more vertical partitions, which divide the fixed frame into a plurality of cavities. The rotating shaft is provided with a plurality of filler plates, which are respectively provided in the corresponding plurality of cavities.

[0017] The beneficial effects of the present invention are:

[0018] The present invention adds a white smoke and mist elimination module in the cooling tower body, which can reduce the water in the air discharged from the top of the cooling tower, not only preventing the generation of "white smoke", but also saving water resources; especially the structure of the white smoke and mist elimination module is improved, which greatly improves the white smoke prevention effect.

[0019] The packing module in the present invention adopts a packing gap adjustable packing module, which enables the cooling tower to adjust the packing gap in real time to adapt to the problem of large water circulation flow or large water cooling water temperature difference during the cooling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 for Figure 1 The structural diagram of the anti-white smoke and fog elimination module is shown;

[0022] Figure 3 for Figure 2 The top view shown;

[0023] Figure 4 for Figure 1The structural diagram of the packing module shown;

[0024] Figure 5 for Figure 4 The top view shown;

[0025] Figure 6 for Figure 5 An enlarged view of point A is shown;

[0026] Figure 7 for Figure 6 The assembly drawing of the packing gap adjustment plate, transmission shaft and gap adjustment electric push rod is shown.

[0027] In the figure: 1. Cooling tower body; 2. Exhaust fan; 3. Filling module; 4. Spray assembly; 5. Water collection tank; 6. Air inlet; 7. Frequency conversion circulation pump; 8. Water circulation pipeline; 9. Heating equipment; 10. Anti-white smoke and mist elimination module; 11. Air collecting tube; 12. Upper mist elimination plate; 13. Soft honeycomb mist elimination block; 14. Lower mist elimination plate; 15. Sliding joint; 16. Slide plate; 17. Electric push rod; 18. Closing plate; 19. Upper oblique air flow channel; 20. Lower oblique air flow channel; 21. Fixed frame; 22. Filling plate; 23. Hanging groove; 24. Rotating shaft; 25. Shielding plate; 26. Vertical partition; 27. Swing arm; 28. Drive shaft; 29. ​​Filling gap adjustment plate; 30. Gap adjustment electric push rod; 31. Long hole. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other unless there is a conflict.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "forward", "reverse", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] like Figure 1As shown, a white smoke-proof cooling tower includes a cooling tower body 1, an exhaust fan 2, a filler module 3, a spray assembly 4, and a water collecting tank 5. The exhaust fan 2 is arranged at the top of the cooling tower body 1, the filler module 3 and the spray assembly 4 are located in the cooling tower body 1, the spray assembly 4 is located above the filler module 3, the water collecting tank 5 is arranged in the cooling tower body 1 and below the filler module 3, and an air inlet 6 is provided on the side wall of the cooling tower body 1, and the air inlet 6 is located between the filler module 3 and the water collecting tank 5. It also includes a variable frequency circulation pump 7 and a water circulation pipeline 8, one end of which extends into the cooling tower body 1 and is connected to the spray assembly 4, and the other end of which is connected to the side bottom of the water collecting tank 5. The variable frequency circulation pump 7 is arranged on the water circulation pipeline 8, and the water in the water circulation pipeline 8 is used to take away the heat from the heating device 9.

[0031] A white smoke prevention cooling tower further includes a white smoke prevention and mist elimination module 10 , wherein the white smoke prevention and mist elimination module 10 is located in the cooling tower body 1 , and the spray assembly 4 is located below the white smoke prevention and mist elimination module 10 .

[0032] like Figure 2 、 Figure 3 As shown, the anti-white smoke and mist elimination module 10 includes an air collecting tube 11, an upper mist elimination plate 12, a soft honeycomb mist elimination block 13 and a lower mist elimination plate 14. The lower mist elimination plate 14 is fixed to the lower end of the air collecting tube 11, the soft honeycomb mist elimination block 13 is located in the air collecting tube 11 and supported on the lower mist elimination plate 12, the upper mist elimination plate 12 is located in the air collecting tube 11 and above the soft honeycomb mist elimination block 13, and vertical sliding slots 15 are provided on the left and right side walls of the air collecting tube 11, and sliding slots are provided on the left and right sides of the upper mist elimination plate 12. The slide plate 16 extends through the sliding slit 15 to the outside of the air collecting duct 11 and is connected to the upper end of the electric push rod 17. The lower end of the electric push rod 17 is located on the sealing plate 18. The sealing plate 18 seals the area between the lower end of the air collecting duct 11 and the inner wall of the cooling tower body 1. The electric push rod 17 drives the slide plate 16 to move downward along the sliding slit 15. The slide plate 16 drives the upper demisting plate 12 to move downward, squeezing the soft honeycomb demisting block 13 and squeezing out the water in the soft honeycomb demisting block 13. The upper demisting plate 12 is provided with a plurality of upper inclined airflow channels 19, and the lower demisting plate 14 is provided with a plurality of lower inclined airflow channels 20. The inclination direction of the upper inclined airflow channels 19 is opposite to the inclination direction of the lower inclined airflow channels 20.

[0033] like Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 As shown, the packing module 3 is a packing gap adjustable packing module. The packing gap adjustable packing module enables the cooling tower to adjust the packing gap in real time to adapt to the problem of large water circulation flow or large cooling water temperature difference during the cooling process.

[0034] The packing gap adjustable packing module includes a fixed frame 21, a packing plate 22, a rotating shaft 24, a swing arm 27, a transmission shaft 28, a packing gap adjustment plate 29 and a gap adjustment electric push rod 30. The fixed frame is fixed on the inner wall of the cooling tower body. The upper surface of the fixed frame 21 is spaced apart with hanging grooves 23. The upper end of the packing plate 22 is fixed on the rotating shaft 24. The lower end of the packing plate 22 is a free end. One end of the rotating shaft 24 is located in the hanging groove 23 on the front side of the fixed frame 21, and the other end of the rotating shaft 24 is extended from the hanging groove 23 on the rear side of the fixed frame 21. The gap adjustment electric push rod 30 extends out of the fixed frame 21 and is connected to one end of the swing arm 27. The other end of the swing arm 27 is connected to one end of the transmission shaft 28. The other end of the transmission shaft 28 extends into the elongated hole 31 of the packing gap adjustment plate 29. The gap adjustment electric push rod 30 is connected to one end of the packing gap adjustment plate 29 and pushes the packing gap adjustment plate 29. The packing gap adjustment plate 29 drives the swing arm 27 via the transmission shaft 28. The swing arm 27 drives the rotating shaft 24, and the rotating shaft 24 drives the packing plates 22 to rotate to adjust the gap between adjacent packing plates 22. A shielding plate 25 is provided above the gap adjustment electric push rod 30. The shielding plate 25 closes the gap between the fixed frame 21 and the cooling tower body 1. Two vertical partitions 26 are provided within the fixed frame 21. The two vertical partitions 26 divide the fixed frame into three cavities. Three packing plates 22 are mounted on the rotating shaft 24, and the three packing plates 22 are respectively disposed in the three cavities.

[0035] Working principle: The present invention adds an anti-white smoke and defogging module in the cooling tower body, which can reduce the water in the air discharged from the top of the cooling tower, not only preventing the generation of "white smoke", but also saving water resources; especially the structure of the anti-white smoke and defogging module is improved, which greatly improves the anti-white smoke effect. The anti-white smoke and defogging module of the present invention adopts a combination of a defogging plate and a soft honeycomb defogging block. When the air passes through the soft honeycomb defogging block, most of the water in the air is absorbed in the soft honeycomb defogging block, so it is necessary to regularly clear the water in the soft honeycomb defogging block. The present invention drives the upper defogging plate to move downward by the electric push rod at a regular interval to squeeze out the water in the soft honeycomb defogging block to improve the anti-white smoke effect.

[0036] In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent. Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A white smoke prevention cooling tower, comprising a cooling tower body, an exhaust fan, and a white smoke prevention and mist elimination module, wherein the white smoke prevention and mist elimination module is located inside the cooling tower body, the exhaust fan is located at the top of the cooling tower body, and an air inlet is provided on the side wall of the cooling tower body, characterized in that: The anti-white smoke and mist dispelling module includes an air collecting tube, an upper mist dispelling plate, a soft honeycomb mist dispelling block and a lower mist dispelling plate, the lower mist dispelling plate is fixed at the lower end of the air collecting tube, the soft honeycomb mist dispelling block is located in the air collecting tube and supported on the lower mist dispelling plate, the upper mist dispelling plate is located in the air collecting tube and above the soft honeycomb mist dispelling block, vertical sliding slots are provided on the left and right side walls of the air collecting tube, and slide plates are provided on the left and right sides of the upper mist dispelling plate, the slide plates extend through the sliding slots to the outside of the air collecting tube and are connected to the upper end of the electric push rod, the lower end of the electric push rod is provided on the closing plate, the closing plate closes the area between the lower end of the air collecting tube and the inner wall of the cooling tower, the electric push rod drives the slide plate to move downward along the sliding slot, and the slide plate drives the upper mist dispelling plate to move downward, squeezing the soft honeycomb mist dispelling block to squeeze out the water in the soft honeycomb mist dispelling block; The upper demisting plate is provided with a plurality of upper oblique airflow channels, and the lower demisting plate is provided with a plurality of lower oblique airflow channels. It also includes a filler module and a spray assembly, wherein the filler module and the spray assembly are located in the cooling tower body, and the spray assembly is located above the filler module and below the white smoke and mist elimination module; The packing module is a packing module with adjustable packing gap; The packing gap adjustable packing module comprises a fixed frame, a packing plate, a rotating shaft, a swing arm, a transmission shaft, a packing gap adjustment plate and a gap adjustment electric push rod, the fixed frame is fixed on the inner wall of the cooling tower body, the upper surface of the fixed frame is spaced apart with hanging grooves, the upper end of the packing plate is fixed on the rotating shaft, the lower end of the packing plate is a free end, one end of the rotating shaft is located in the hanging groove on the rear side of the fixed frame, the other end of the rotating shaft extends from the hanging groove on the rear side of the fixed frame to the outside of the fixed frame and is connected to one end of the swing arm, the other end of the swing arm is connected to one end of the transmission shaft, the other end of the transmission shaft extends into the elongated hole of the packing gap adjustment plate, the gap adjustment electric push rod is connected to the packing gap adjustment plate, the gap adjustment electric push rod pushes the packing gap adjustment plate, the packing gap adjustment plate drives the swing arm through the transmission shaft, the swing arm drives the rotating shaft, and the rotating shaft drives the packing plate to rotate to adjust the gap between adjacent packing plates; The fixed frame is provided with more than two vertical partitions, which divide the fixed frame into a plurality of cavities. The rotating shaft is provided with a plurality of filler plates, which are respectively provided in the corresponding plurality of cavities.

2. The white smoke-proof cooling tower according to claim 1, characterized in that: The inclination direction of the upper oblique air flow channel is opposite to the inclination direction of the lower oblique air flow channel.

3. The white smoke-proof cooling tower according to claim 2, characterized in that: It also includes a water collecting pool, which is arranged in the cooling tower body and below the filler module, and the air inlet is located between the filler module and the water collecting pool.

4. The white smoke-proof cooling tower according to claim 3, characterized in that: It also includes a variable frequency circulation pump and a water circulation pipeline. One end of the water circulation pipeline extends into the cooling tower body and is connected to the spray assembly, and the other end of the water circulation pipeline is connected to the side bottom of the water collection tank. The variable frequency circulation pump is arranged on the water circulation pipeline, and the water in the water circulation pipeline is used to take away the heat in the heating equipment.

5. The white smoke-proof cooling tower according to claim 1, characterized in that: A shielding plate is provided above the gap adjustment electric push rod, and the shielding plate closes the gap between the fixing frame and the cooling tower body to prevent water from flowing onto the gap adjustment electric push rod.

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