Closed mist eliminator cooling tower

Abstract

The utility model discloses a closed type mist eliminating cooling tower, including tower body, water pool, coil, sprinkler, water collector, exhaust device, flap mechanism, regulation air window, a plurality of baffle and a plurality of mist eliminating module, the water pool is located the bottom of tower body, the coil is located in tower body and is located the top of water pool, the coil is used for circulating water flow, the sprinkler is used for sucking cooling water in water pool and sprays cooling water to the coil surface, the water collector is located in tower body and is located the top of sprinkler and coil, the baffle is arranged in sequence in tower body and is located the top of water collector, the baffle is separated in tower body and is formed with first channel and second channel of in -order alternately arranged, and the air inlet that communicates with first channel is equipped on tower body, and the regulation air window is installed in the air inlet. The utility model can reduce the power consumption while realizing the mist elimination in winter, and can save energy consumption.

Description

Technical Field

[0001] This utility model relates to a closed-type defogging cooling tower. Background Technology

[0002] A cooling tower is a tower-shaped heat dissipation device that cools circulating water. During operation, it generates a large amount of water vapor, resulting in significant white fog at the tower's exhaust outlet in winter. This fog not only obstructs visibility but also negatively impacts nearby equipment and buildings. Therefore, defogging is necessary in winter. Currently, most closed-loop defogging cooling towers are combined dry and wet cooling towers. For example, Chinese patent CN205138252U discloses a combined dry and wet closed-loop cooling tower. This type of cooling tower defogs by relying on heat exchange between cold air and circulating water in the finned tubes during winter to prevent water vapor from being carried out, thus achieving the purpose of defogging. However, this defogging method requires a large amount of cold air for heat exchange, necessitating the cooling tower's fans to operate at full power and high speed, resulting in enormous power consumption and significant energy depletion. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a closed-loop defogging cooling tower that can reduce power consumption while achieving defogging in winter, thus saving energy consumption.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a closed-loop defogging cooling tower, including a tower body, a water tank, coils, a spray device, a water collector, an exhaust device, a flap mechanism, an adjustable air window, multiple baffles and multiple defogging modules;

[0005] The water tank is located at the bottom of the tower body;

[0006] The coil is installed in the tower body and located above the water tank, and is used for circulating water to flow through the coil;

[0007] The spraying device is used to draw cooling water from the water tank and spray the cooling water onto the surface of the coil.

[0008] The water collector is located inside the tower body and above the spray device and the coil;

[0009] The partitions are arranged sequentially in the tower body and located above the water collector. The partitions divide the tower body into alternating first and second channels.

[0010] The tower body is provided with an air inlet that communicates with the first channel, and the air inlet is equipped with the regulating window;

[0011] The flap mechanism is provided at the lower end of the first channel. The flap mechanism is positioned below the air inlet and is used to control the opening and closing of the lower end of the first channel.

[0012] The defogging modules are arranged sequentially in the tower body and located above the partition. Each defogging module has a dry and cold channel communicating with the upper end of the first channel and a humid and hot channel communicating with the upper end of the second channel.

[0013] The tower body is provided with a mixing space located above the defogging module, and the dry-cold channel and the wet-heat channel are respectively connected to the mixing space;

[0014] The top of the tower is provided with an exhaust vent that communicates with the mixing space. The exhaust device is located in the exhaust vent and is used to draw air from the mixing space and discharge it from the exhaust vent.

[0015] Furthermore, the tower body has a support frame, and the coil, the spray device, the water collector, the flap mechanism, the partition and the fog-eliminating module are all connected to the support frame.

[0016] Further, a specific structure of the flipping mechanism is provided, the flipping mechanism including a plate body and a driving component;

[0017] The plate is rotatably configured and, during rotation, has a closed position that closes the lower end of the corresponding first channel and an open position that opens the lower end of the corresponding first channel.

[0018] The driving component is connected to the plate and is used to drive the plate to rotate between the open position and the closed position.

[0019] Further, a specific structure of the spraying device is provided, the spraying device including a spray pump, a spray pipe and a plurality of spray heads;

[0020] The spray pipe is located in the tower body, above the coil and below the water collector;

[0021] The nozzle is connected to the spray pipe;

[0022] The inlet of the spray pump is connected to the water tank, and the outlet of the spray pump pipe is connected to the spray pipe.

[0023] Furthermore, the top of the tower is provided with a ventilation duct, and the exhaust port is located in the ventilation duct.

[0024] Furthermore, the partition and the defogging module are arranged sequentially in the horizontal direction, and the first channel and the second channel extend vertically.

[0025] Furthermore, each air inlet corresponds to and is connected to the first channel, and each air inlet is equipped with an adjustable air window.

[0026] Furthermore, the exhaust device is an axial flow fan, and the adjustable vent is an electric louver.

[0027] Furthermore, the coil has an external water inlet and an external water outlet.

[0028] Furthermore, the outer wall of the tower is equipped with a fog-eliminating maintenance platform and a rotating ladder, and the top of the tower is equipped with a fence.

[0029] After adopting the above technical solution, when defogging is required in winter, the lower end of the first channel is closed and the regulating vent is opened via the flap mechanism. Circulating water requiring cooling flows through the coil. The spray device draws cooling water from the water tank and sprays it onto the surface of the coil. The cooling water exchanges heat with the circulating water in the coil, removing heat from the circulating water and cooling it down. The cooling water sprayed on the coil surface falls into the water tank below. During heat exchange between the cooling water and the circulating water in the coil, the temperature of the cooling water rises, causing it to evaporate in the coil area and form saturated hot and humid air. This saturated hot and humid air flows upward through the water collector under the suction of the exhaust device, collecting large droplets. Since the lower end of the first channel is closed, the saturated hot and humid air passing through the water collector flows upward into the second channel, and then from the second channel into the hot and humid channel of the defogging module. Simultaneously, dry, cold air from the outside flows through the regulating vent and into the first channel from the air inlet. The dry, cold air in the first channel flows upward and then into the dry-cold channel of the defogging module. In the defogging module, the dry, cold air in the dry-cold channel and the saturated humid, hot air in the humid, hot channel undergo indirect heat exchange. During this indirect heat exchange, the saturated humid, hot air in the humid, hot channel cools down, causing liquid water to precipitate and fall into the water pool. Meanwhile, the dry, cold air in the dry-cold channel is heated, increasing its moisture-holding capacity. The air in the dry-cold channel and the humid, hot channel eventually flows upward into the mixing space to mix and form unsaturated air. Then, under the suction of the exhaust device, the air is discharged into the atmosphere from the exhaust port. Because the discharged air is unsaturated, it does not form white fog. The circulating water in the coil is cooled by spraying, and then the fog is eliminated by the defogging module. Therefore, a large amount of cold air is not required for heat exchange, which reduces the power of the exhaust device and thus reduces the power consumption of the cooling tower, saving energy. Therefore, it can reduce power consumption while eliminating fog in winter.

[0030] In summer, when defogging is not required, the lower end of the first channel can be opened and the regulating vent closed via the flap mechanism. The humid, hot air evaporating in the coil area will flow upwards under the suction of the exhaust device. After passing through the water collector, the humid, hot air flows into the first and second channels. The humid, hot air in the first channel will flow into the mixing space through the dry-cold channel, and the humid, hot air in the second channel will flow into the mixing space through the humid channel. Then, it will be drawn out of the exhaust vent and discharged into the atmosphere. Because the air temperature is high in summer, white fog will not form. Attached Figure Description

[0031] Figure 1 This is a front view of the closed-type defogging cooling tower of this utility model;

[0032] Figure 2 This is a left view of the closed-loop defogging cooling tower of this utility model;

[0033] Figure 3 This is a top view of the closed-loop defogging cooling tower of this utility model;

[0034] Figure 4 This is a schematic diagram of the airflow when the flap mechanism of this utility model is closed and the adjustable vent is open;

[0035] Figure 5 This is a schematic diagram of the airflow when the flap mechanism of this utility model is open and the adjustable vent is closed;

[0036] In the diagram: 1. Water tank; 2. Coil; 3. Sprinkler system; 4. Water collector; 5. Exhaust system; 6. Flip-up mechanism; 7. Adjustable air vent; 8. Partition; 9. Defogging module; 10. First channel; 11. Second channel; 12. Mixing space; 13. Exhaust vent; 14. Sprinkler pump; 15. Sprinkler pipe; 16. Sprinkler head; 17. Air duct; 18. External water inlet; 19. External water outlet; 20. Defogging maintenance platform; 21. Rotary ladder; 22. Fence. Detailed Implementation

[0037] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0038] like Figures 1-5 As shown, a closed-loop defogging cooling tower includes a tower body, a water tank 1, a coil 2, a spray device 3, a water collector 4, an exhaust device 5, a flap mechanism 6, an adjustable air window 7, multiple baffles 8, and multiple defogging modules 9.

[0039] The water tank 1 is located at the bottom of the tower body;

[0040] The coil 2 is installed in the tower body and located above the water tank 1, and is used for circulating water to flow through the coil 2;

[0041] The spraying device 3 is used to draw cooling water from the water tank 1 and spray the cooling water onto the surface of the coil 2;

[0042] The water collector 4 is located in the tower body and above the spray device 3 and the coil 2;

[0043] The partitions 8 are arranged sequentially in the tower body and located above the water collector 4. The partitions 8 divide the tower body to form a first channel 10 and a second channel 11 arranged alternately in sequence.

[0044] The tower body is provided with an air inlet that communicates with the first channel 10, and the air inlet is equipped with the regulating window 7;

[0045] The flap mechanism 6 is provided at the lower end of the first channel 10. The flap mechanism 6 is positioned below the air inlet and is used to control the opening and closing of the lower end of the first channel 10.

[0046] The defogging modules 9 are arranged sequentially in the tower body and located above the partition plate 8. The defogging modules 9 have a dry and cold channel communicating with the upper end of the first channel 10 and a humid and hot channel communicating with the upper end of the second channel 11.

[0047] The tower body is provided with a mixing space 12 located above the defogging module 9, and the dry-cold channel and the wet-heat channel are respectively connected to the mixing space 12;

[0048] The top of the tower is provided with an exhaust vent 13 that communicates with the mixing space 12. The exhaust device 5 is located in the exhaust vent 13 and is used to draw air from the mixing space 12 and discharge it from the exhaust vent 13.

[0049] Specifically, when defogging is required in winter, the lower end of the first channel 10 is closed and the regulating vent 7 is opened via the flap mechanism 6. Circulating water requiring cooling flows through the coil 2. The spray device 3 draws cooling water from the water tank 1 and sprays it onto the surface of the coil 2. The cooling water exchanges heat with the circulating water in the coil 2, removing heat from the circulating water and cooling it down. The cooling water sprayed onto the surface of the coil 2 falls downwards into the water tank 1 below. During heat exchange between the cooling water and the circulating water in the coil 2, the temperature of the cooling water rises, causing it to evaporate in the coil 2 area, forming saturated hot and humid air. This saturated hot and humid air flows upwards through the water collector 4 under the suction of the exhaust device 5, collecting large droplets. Since the lower end of the first channel 10 is closed, the saturated hot and humid air passing through the water collector 4 flows upwards into the second channel 11, and then from the second channel 11 into the humid heat channel of the defogging module 9. Simultaneously, dry, cold air from the outside flows through the regulating vent 7 into the first channel 10 via the air inlet. The dry, cold air in the first channel 10 flows upward and then into the dry-cold channel of the defogging module 9. In the defogging module 9, the dry, cold air in the dry-cold channel and the saturated humid, hot air in the humid channel undergo indirect heat exchange. During this indirect heat exchange, the saturated humid, hot air in the humid channel cools down, causing liquid water to precipitate and fall into the water tank 1. Meanwhile, the dry, cold air in the dry-cold channel is heated, increasing its moisture-holding capacity. The air in the dry-cold channel and the humid, hot channel eventually flows upward into the mixing space 12 to mix and form unsaturated air. Then, under the suction of the exhaust device 5, the air is discharged into the atmosphere through the exhaust port 13. Because the discharged air is unsaturated, it does not form white fog. In this embodiment, the circulating water in coil 2 is cooled by spraying, and then defogging is achieved through the defogging module 9. Therefore, a large amount of cold air is not required for heat exchange, which reduces the power consumption of the exhaust device 5 and thus the power consumption of the cooling tower, saving energy. Therefore, it can reduce power consumption while achieving defogging in winter. The specific structure of the defogging module 9 is prior art well known to those skilled in the art. The defogging module 9 is also called a dual-channel indirect wall heat exchanger or a diamond-shaped defogging module 9.

[0050] More specifically, when defogging is not required in summer, the lower end of the first channel 10 can be opened and the regulating window 7 closed via the flap mechanism 6. The humid, hot air evaporating in the coil 2 area will flow upwards under the suction of the exhaust device 5. After passing through the water collector 4, the humid, hot air flows into the first channel 10 and the second channel 11. The humid, hot air in the first channel 10 will flow into the mixing space 12 through the dry-cold channel, and the humid, hot air in the second channel 11 will flow into the mixing space 12 through the humid channel. Then, it will be drawn out of the exhaust port 13 and discharged into the atmosphere. Because the air temperature is high in summer, white fog will not form.

[0051] Specifically, the tower body has a supporting frame, and the coil 2, the spray device 3, the water collector 4, the flap mechanism 6, the partition 8 and the defogging module 9 are all connected to the supporting frame; in this embodiment, a frame structure is adopted, which allows the cooling tower to be made larger, thereby greatly increasing the water processing capacity of a single tower; in this embodiment, multiple coils 2 can be provided.

[0052] like Figures 1-5 As shown, the flip-up mechanism 6 may include a plate body and a driving component;

[0053] The plate is rotatably configured and has a closed position that closes the lower end of the corresponding first channel 10 and an open position that opens the lower end of the corresponding first channel 10 during the rotation process;

[0054] The driving component is connected to the plate and is used to drive the plate to rotate between the open position and the closed position; in this embodiment, the plate is rotatably mounted on the support frame, and the driving component is also connected to the support frame. The driving component can be a geared motor.

[0055] like Figure 1 , 4 As shown in Figures 5 and 6, the spraying device 3 may include a spray pump 14, a spray pipe 15, and a plurality of spray nozzles 16;

[0056] The spray pipe 15 is located in the tower body, above the coil 2 and below the water collector 4;

[0057] The nozzle 16 is connected to the spray pipe 15;

[0058] The inlet of the spray pump 14 is connected to the water tank 1, and the outlet of the spray pump 14 pipe is connected to the spray pipe 15. Specifically, the spray pump 14 pumps the cooling water in the water tank 1 to the spray pipe 15, and then sprays it from the nozzle 16 onto the surface of the coil 2.

[0059] like Figures 1-3 As shown, the top of the tower body may be provided with a ventilation duct 17, and the exhaust port 13 is located in the ventilation duct 17.

[0060] like Figure 1 , 4 As shown in Figures 5 and 6, the partition 8 and the defogging module 9 are arranged sequentially in the horizontal direction, and the first channel 10 and the second channel 11 extend vertically.

[0061] In this embodiment, each air inlet corresponds to and is connected to the corresponding first channel 10. Each air inlet is equipped with an adjustable vent 7. The exhaust device 5 can be an axial flow fan, and the adjustable vent 7 can be an electric louver.

[0062] like Figure 1 As shown, the coil 2 has an external inlet 18 and an external outlet 19; specifically, circulating water flows into the coil 2 from the external inlet 18, then flows through the coil 2 and flows out from the external outlet 19.

[0063] like Figures 1-3 As shown, the outer wall of the tower is provided with a fog-eliminating maintenance platform 20 and a rotating ladder 21, and the top of the tower is provided with a railing 22.

[0064] In summary, when defogging is required in winter, the lower end of the first channel 10 is closed and the regulating vent 7 is opened via the flap mechanism 6. Cooling water flows through the coil 2, and the spray device 3 draws cooling water from the water tank 1 and sprays it onto the surface of the coil 2. The cooling water exchanges heat with the circulating water in the coil 2, removing heat from the circulating water and cooling it down. The cooling water sprayed onto the surface of the coil 2 falls into the water tank 1 below. During heat exchange between the cooling water and the circulating water in the coil 2, the temperature of the cooling water rises, causing it to evaporate in the coil 2 area and form saturated hot and humid air. This saturated hot and humid air flows upward through the water collector 4 under the suction of the exhaust device 5, collecting large droplets. Since the lower end of the first channel 10 is closed, the saturated hot and humid air passing through the water collector 4 flows upward into the second channel 11, and then from the second channel 11 into the humid heat channel of the defogging module 9. Simultaneously, dry, cold air from the outside flows through the regulating vent 7 into the first channel 10 via the air inlet. The dry, cold air in the first channel 10 flows upward and then into the dry-cold channel of the defogging module 9. In the defogging module 9, the dry, cold air in the dry-cold channel and the saturated humid, hot air in the humid channel undergo indirect heat exchange. During this indirect heat exchange, the saturated humid, hot air in the humid channel cools down, causing liquid water to precipitate and fall into the water tank 1. Meanwhile, the dry, cold air in the dry-cold channel is heated, increasing its moisture-holding capacity. The air in the dry-cold channel and the humid, hot channel eventually flows upward into the mixing space 12 to mix and form unsaturated air. Then, under the suction of the exhaust device 5, the air is discharged into the atmosphere through the exhaust port 13. Because the discharged air is unsaturated, it does not form white fog. The circulating water in coil 2 is cooled by spraying, and then fogging is eliminated by the defogging module 9. Therefore, a large amount of cold air is not required for heat exchange, which reduces the power of the exhaust device 5 and thus reduces the power consumption of the cooling tower, saving energy. Therefore, it can reduce power consumption while eliminating fog in winter.

[0065] In summer, when defogging is not required, the lower end of the first channel 10 can be opened and the regulating vent 7 closed via the flap mechanism 6. The humid, hot air evaporating in the coil 2 area will flow upwards under the suction of the exhaust device 5. After passing through the water collector 4, the humid, hot air flows into the first channel 10 and the second channel 11. The humid, hot air in the first channel 10 will flow into the mixing space 12 through the dry-cold channel, and the humid, hot air in the second channel 11 will flow into the mixing space 12 through the humid channel. Then, it will be drawn out of the exhaust vent 13 and discharged into the atmosphere. Because the air temperature is high in summer, white fog will not form.

[0066] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A closed mist eliminator cooling tower characterized by, It includes a tower body, a water tank (1), a coil (2), a spray device (3), a water collector (4), an exhaust device (5), a flap mechanism (6), an adjustable air window (7), multiple partitions (8), and multiple fog-reducing modules (9); The water tank (1) is located at the bottom of the tower body; The coil (2) is located in the tower body and above the water tank (1), and the coil (2) is used to supply circulating water. The spray device (3) is used to draw cooling water from the water tank (1) and spray the cooling water onto the surface of the coil (2); The water collector (4) is located in the tower body and above the spray device (3) and the coil (2); The partitions (8) are arranged sequentially in the tower body and located above the water collector (4). The partitions (8) divide the tower body to form a first channel (10) and a second channel (11) arranged alternately in sequence. The tower body is provided with an air inlet that communicates with the first channel (10), and the air inlet is equipped with the regulating window (7); The flap mechanism (6) is provided at the lower end of the first channel (10). The flap mechanism (6) is positioned below the air inlet and is used to control the opening and closing of the lower end of the first channel (10). The defogging modules (9) are arranged sequentially in the tower body and located above the partition (8). The defogging modules (9) have a dry and cold channel connected to the upper end of the first channel (10) and a humid and hot channel connected to the upper end of the second channel (11). The tower body is provided with a mixing space (12) located above the defogging module (9), and the dry cold channel and the wet heat channel are respectively connected to the mixing space (12); The top of the tower is provided with an exhaust vent (13) that communicates with the mixing space (12). The exhaust device (5) is located in the exhaust vent (13) and is used to draw air from the mixing space (12) and discharge it from the exhaust vent (13).

2. The closed-loop defogging cooling tower according to claim 1, characterized in that, The tower body has a support frame, and the coil (2), the spray device (3), the water collector (4), the flap mechanism (6), the partition (8) and the fog-removing module (9) are all connected to the support frame.

3. The closed-loop defogging cooling tower according to claim 1, characterized in that, The flip-up mechanism (6) includes a plate and a driving component; The plate is rotatably configured and has a closed position that closes the lower end of the corresponding first channel (10) and an open position that opens the lower end of the corresponding first channel (10) during rotation; The driving component is connected to the plate and is used to drive the plate to rotate between the open position and the closed position.

4. The closed-loop defogging cooling tower according to claim 1, characterized in that, The spraying device (3) includes a spray pump (14), a spray pipe (15), and multiple nozzles (16); The spray pipe (15) is located in the tower body and above the coil (2) and below the water collector (4); The nozzle (16) is connected to the spray pipe (15); The inlet of the spray pump (14) is connected to the water tank (1), and the outlet of the spray pump (14) pipe is connected to the spray pipe (15).

5. The closed-loop defogging cooling tower according to claim 1, characterized in that, The top of the tower is provided with a duct (17), and the exhaust port (13) is located in the duct (17).

6. The closed-loop defogging cooling tower according to claim 1, characterized in that, The partition (8) and the defogging module (9) are arranged in sequence along the horizontal direction, and the first channel (10) and the second channel (11) extend vertically.

7. The closed-loop defogging cooling tower according to claim 1, characterized in that, Each air inlet corresponds to one of the first channels (10) and is connected to the corresponding first channel (10). Each air inlet is equipped with an adjustable air window (7).

8. The closed-loop defogging cooling tower according to claim 1, characterized in that, The exhaust device (5) is an axial flow fan, and the adjustable window (7) is an electric louver.

9. The closed-loop defogging cooling tower according to claim 1, characterized in that, The coil (2) has an external inlet (18) and an external outlet (19).

10. The closed-loop defogging cooling tower according to claim 1, characterized in that, The outer wall of the tower is equipped with a fog-removing maintenance platform (20) and a rotating ladder (21), and the top of the tower is equipped with a railing (22).

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