Energy-saving water turbine without filler cooling tower

Abstract

The application relates to the technical field of filler-free cooling tower, and provides an energy-saving water turbine filler-free cooling tower, which comprises a cooling cylinder, a louver is arranged at the lower end of the cooling cylinder, a water collecting pool is arranged at the lower end of the louver, a water inlet pipe is arranged on the cooling cylinder, a connecting pipe is arranged on the water inlet pipe, a plurality of spraying pipes are uniformly distributed at the upper end of the connecting pipe, low-pressure centrifugal spray heads are arranged at the end of the spraying pipes, a fan is arranged on the connecting pipe and located at the lower end of the spraying pipes, blades are arranged on the fan, a water collector is arranged at the upper end of the cooling cylinder, the water turbine filler-free cooling tower has the advantages that the filler is cancelled, the system resistance is reduced, the cooling air volume can be increased, the air-water ratio is improved, the contact area between the atomized water and air is large, heat exchange is sufficient, the cooling temperature difference is about 2 DEG C larger than that of the filler tower, the problems of filler aging, deformation, brittle fracture and blockage are avoided, the filler does not need to be replaced regularly, and the maintenance workload and cost are reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of fillerless cooling towers, and specifically relates to an energy-saving fillerless cooling tower for water turbines. Background Technology

[0002] The main reasons for replacing cooling tower packing are performance degradation and functional impairment that occur during long-term use, as well as their impact on the overall operating efficiency, safety, and energy consumption of the cooling tower, as detailed below:

[0003] Aging and damage of the packing material itself: Cooling tower packing materials are mostly made of PVC, PP and other materials. When exposed to high temperature, high humidity, dust and potentially corrosive media for a long time, they will gradually age, become brittle, deform and even break.

[0004] Decreased cooling efficiency: When the packing becomes clogged with scale, deformed, or aged, it cannot effectively achieve sufficient contact and heat exchange between water and air, which will directly lead to a reduction in the cooling effect of the cooling tower.

[0005] Increased energy consumption and costs: Decreased cooling efficiency forces cooling tower fans, pumps, and other equipment to operate under overload conditions to compensate for insufficient cooling capacity, leading to a significant increase in electricity consumption. Simultaneously, damage to the packing material may cause uneven water distribution, resulting in excessive water volume in some areas causing overflows, increasing water waste and subsequent treatment costs.

[0006] Safety and maintenance risks: Damaged packing fragments may enter the circulation system with the water flow, clogging pipes or damaging equipment such as water pumps, causing malfunctions and shutdowns. In addition, aging packing may fall off under the impact of water flow, and if it accumulates in specific areas inside the tower, it may affect the structural stability of the cooling tower, increasing maintenance difficulty and safety hazards.

[0007] Fillerless water spray cooling towers eliminate the packing structure found in traditional cooling towers. However, the fillerless design lacks the large, regular heat exchange interface provided by traditional packing. Heat exchange relies solely on water droplets or films formed by spraying water. This reduces the contact area and time between water and air, making it difficult to achieve the same cooling effect as traditional packed towers, especially in high-temperature and high-humidity environments. Utility Model Content

[0008] In view of this, this utility model provides an energy-saving, fillerless cooling tower for water turbines. By eliminating the filler, system resistance is reduced, the cooling air volume can be increased, and the air-to-water ratio can be improved. At the same time, the atomized water has a large contact area with the air, resulting in sufficient heat exchange and a cooling temperature difference that is about 2°C larger than that of a filled tower. The absence of filler avoids problems such as aging, deformation, brittleness, and clogging of the filler, eliminating the need for regular filler replacement, reducing maintenance workload and costs. The nozzles are less prone to clogging and can be used for cooling circulating water with poor water quality, impurities, or corrosive media, such as circulating water containing heavy metal ions, acids, or alkalis in industrial production. The system resistance is low, and energy savings can reach 30%-40% compared to traditional filled towers, eliminating the costs of motors, reducers, and filler.

[0009] The technical solution is as follows: An energy-saving, fillerless cooling tower for water turbines includes a cooling cylinder. A louver is provided at the lower end of the cooling cylinder for gas entry. A water collection tank is provided at the lower end of the louver for collecting coolant, and a drain pipe is provided therein. A water inlet pipe is provided on the cooling cylinder, and a connecting pipe is provided on the water inlet pipe. Multiple spray pipes are evenly distributed circumferentially at the upper end of the connecting pipe. Low-pressure centrifugal spray heads are provided at the ends of the spray pipes. A fan is provided on the connecting pipe at the lower end of the spray pipes, and the fan has fan blades. The fan drives the fan blades to generate airflow, which enters through the louvers and exits through the opening at the upper end of the cooling cylinder. A grid platform is provided on the inner wall of the cooling cylinder, and a wind tunnel is provided on the grid platform. A water collector is provided at the upper end of the cooling cylinder to capture and recover fine water droplets carried in the airflow.

[0010] Preferably, the angle between the spray pipe and the connecting pipe is between 10 and 45°.

[0011] Preferably, the angle between the spray pipe and the connecting pipe is 30°.

[0012] Preferably, the water collection pool is fixedly provided with 6 circumferentially evenly distributed support columns, and the upper end of the support columns is fixedly provided with support square tubes, and the grid platform is fixed on the support square tubes.

[0013] Preferably, the grille platform is annular, with the outer ring connected to the inner wall of the cooling cylinder and the inner ring connected to the air duct.

[0014] Preferably, the diameter of the upper end of the duct is smaller than the diameter of the lower end.

[0015] Preferably, a guide plate is provided on the inner wall of the cooling cylinder between the grid platform and the louvers to guide the water left on the inner wall of the cooling cylinder toward the central axis.

[0016] Preferably, the guide plate is a conical cylinder with a larger diameter at the upper end than at the lower end.

[0017] Preferably, the water collector consists of multiple linearly and evenly distributed water collection plates, with their ends respectively connected and fixed to the inner wall of the cooling cylinder.

[0018] Preferably, the water-collecting plate has a wavy cross-section to increase the contact area between water vapor and the water vapor.

[0019] After adopting the above technical solution, the beneficial effects of this utility model are:

[0020] Eliminating the packing material reduces system resistance, increases the cooling air volume, and improves the air-to-water ratio. Simultaneously, the atomized water has a larger contact area with the air, resulting in more efficient heat exchange and a cooling temperature difference approximately 2°C greater than that of packed towers. The absence of packing material avoids problems such as aging, deformation, brittleness, and clogging, eliminating the need for regular packing replacement and reducing maintenance workload and costs. The nozzles are less prone to clogging, making it suitable for cooling circulating water with poor quality, impurities, or corrosive media, such as circulating water containing heavy metal ions, acids, or alkalis in industrial production. The system resistance is low, and energy savings of 30%-40% can be achieved compared to traditional packed towers, eliminating the costs of motors, reducers, and packing material. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is the front view of the present invention;

[0023] Figure 2 This utility model Figure 1 Sectional view at point AA;

[0024] Figure 3 This is a top view of the present invention;

[0025] Figure 4 This utility model Figure 3 Sectional view at point BB;

[0026] Figure 5 This is a partial top view of the present invention;

[0027] Figure 6 This is a perspective view of the water collector of this utility model;

[0028] Figure 7 This is a partial exploded view of the present invention;

[0029] Figure 8 This is a schematic diagram of the installation of the spray pipe of this utility model;

[0030] In the diagram, 1. Cooling cylinder; 2. Louver; 3. Water collection tank; 4. Water inlet pipe; 5. Drain pipe; 6. Water delivery pipe; 7. Connecting pipe; 8. Spray pipe; 9. Fan; 10. Fan blade; 11. Support column; 12. Support square tube; 13. Grille platform; 14. Air duct; 15. Guide plate; 16. Water collector; 17. Low-pressure centrifugal spray head; Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1

[0033] like Figures 1 to 8 As shown, an energy-saving, fillerless cooling tower for a water turbine includes a cooling cylinder 1. A louver 2 is provided at the lower end of the cooling cylinder 1 for gas entry. A water collection tank 3 is provided at the lower end of the louver 2 for collecting coolant, and a drain pipe 5 is also provided. A water inlet pipe 4 is provided on the cooling cylinder 1, and a connecting pipe 7 is provided on the water inlet pipe 4. Multiple spray pipes 8 are evenly distributed circumferentially at the upper end of the connecting pipe 7. A low-pressure centrifugal spray head 17 is provided at the end of each spray pipe 8. A fan 9 is provided on the connecting pipe 7 at the lower end of each spray pipe 8, and a fan blade 10 is provided on the fan 9. The fan 9 drives the fan blade 10 to generate airflow, which enters through the louver 2 and exits through the opening at the upper end of the cooling cylinder 1. A grid platform 13 is provided on the inner wall of the cooling cylinder 1, and a wind tunnel 14 is provided on the grid platform 13. A water collector 16 is provided at the upper end of the cooling cylinder 1 to capture and recover small water droplets carried in the airflow.

[0034] The water collection tank 3 is fixedly equipped with 6 circumferentially evenly distributed support columns 11, and a support square tube 12 is fixedly installed on the upper end of the support columns 11. The grid platform 13 is fixed on the support square tube 12. The grid platform 13 is annular, with the outer ring connected to the inner wall of the cooling cylinder 1 and the inner ring connected to the air duct 14. The diameter of the upper end of the air duct 14 is smaller than the diameter of the lower end. A guide plate 15 is provided on the inner wall of the cooling cylinder 1 between the grid platform 13 and the louver 2 to guide the water left on the inner wall of the cooling cylinder 1 towards the central axis. The guide plate 15 is a conical cylinder with a larger diameter at the upper end than at the lower end. The end of the water inlet pipe 4 is connected to a circulating water pump.

[0035] In actual operation: Hot water is pumped to the connecting pipe 7 inside the cooling tower by a circulating water pump, and then evenly distributed to the low-pressure centrifugal spray head 17 through the spray pipe 8. The hot water is then sprayed out through the low-pressure centrifugal spray head 17, atomizing the water into tiny droplets with a diameter of about 0.5 mm. The fan 9 is started to drive the fan blades 10 to rotate. The air outside the cooling cylinder 1 enters through the louvers 2 and flows from bottom to top, finally being discharged through the water collector 16 at the top. The droplets exchange heat with the cold air flowing from bottom to top inside the tower. In the cooling process, some droplets move upwards and exchange heat with the cold air moving in the same direction. After reaching a certain height, the droplets fall due to their own weight and exchange heat with the rising cold air in the opposite direction. The humid and hot air continues to rise after heat exchange. When it passes through the water collector 16, the tiny water droplets it carries are captured and recovered. The humid and hot air is discharged from the opening at the top of the cooling cylinder 1. The cooled water falls into the water collection pool 3 through the guide plate 13 and the guide plate 15, and is then pumped back to the equipment or system that needs to be cooled by the circulating water pump to complete the circulating cooling process.

[0036] The water collector 16 consists of multiple linearly and evenly distributed water collecting plates, with their ends respectively connected and fixed to the inner wall of the cooling cylinder 1. The cross-section of the water collecting plate is wavy to increase the contact area of ​​water vapor. The angle between the spray pipe 8 and the connecting pipe 7 is between 10-45°, and the angle between the spray pipe 8 and the connecting pipe 7 is preferably 30°.

[0037] In actual operation: The wavy water collection plate increases the contact area with water vapor, thereby improving the efficiency of capturing and recovering fine water droplets carried in the airflow. The 30° design of the spray pipe 8 improves the uniformity of the mist spray and causes it to be ejected in a parabolic trajectory, further improving the heat exchange time.

[0038] Example 2

[0039] Based on Embodiment 1, a water supply pipe 6 is provided at the lower end of the connecting pipe 7, and a submersible pump is provided at the lower end of the water supply pipe 6. The submersible pump is installed in the water collection tank 3, and a temperature detection sensor is installed in the water collection tank 3 to detect the temperature of the cooled liquid in the water collection tank 3. A one-way valve is provided at the connection between the water supply pipe 6 and the connecting pipe 7. When the temperature detected by the temperature detection sensor is less than the set value, the submersible pump is started to transport the water in the water collection tank 3 to the connecting pipe 7 through the water supply pipe 6, and then spray it out through the low-pressure centrifugal spray head 17 to achieve the function of circulating cooling.

[0040] The working principle of this utility model is as follows: Hot water is transported by a circulating water pump to the connecting pipe 7 inside the cooling tower, and then evenly distributed to the low-pressure centrifugal spray head 17 through the spray pipe 8. The hot water is then sprayed out through the low-pressure centrifugal spray head 17, atomizing the water into tiny droplets with a diameter of about 0.5 mm. The fan 9 is started to drive the fan blades 10 to rotate. The air outside the cooling cylinder 1 enters through the louvers 2 and flows from bottom to top, finally being discharged through the water collector 16 at the top. The droplets interact with the upward-flowing cold air inside the tower. During heat exchange, some droplets move upwards and exchange heat with the cold air moving in the same direction. After reaching a certain height, the droplets fall due to their own weight and exchange heat with the rising cold air in the opposite direction. The humid and hot air continues to rise after heat exchange. When it passes through the water collector 16, the tiny water droplets it carries are captured and recovered. The humid and hot air is discharged from the opening at the top of the cooling cylinder 1. The cooled water falls into the water collection pool 3 through the guide plate 13 and the guide plate 15, and is then pumped back to the equipment or system that needs to be cooled by the circulating water pump to complete the circulating cooling process.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. Energy-saving water turbine without filler cooling tower, comprising a cooling cylinder (1), characterized in that: The cooling cylinder (1) is provided with a louver (2) at its lower end for gas entry. A water collection tank (3) is provided at the lower end of the louver (2) for collecting coolant, and a drain pipe (5) is provided thereon. A water inlet pipe (4) is provided on the cooling cylinder (1), and a connecting pipe (7) is provided on the water inlet pipe (4). Multiple spray pipes (8) are evenly distributed circumferentially at the upper end of the connecting pipe (7). A low-pressure centrifugal spray head (17) is provided at the end of each spray pipe (8). The connecting pipe (7)... A fan (9) is installed at the lower end of the spray pipe (8), and a fan blade (10) is installed on the fan (9). The fan (9) drives the fan blade (10) to generate airflow, which enters through the louver (2) and exits through the opening at the upper end of the cooling cylinder (1). A grid platform (13) is installed on the inner wall of the cooling cylinder (1), and a fan duct (14) is installed on the grid platform (13). A water collector (16) is installed at the upper end of the cooling cylinder (1) to capture and recover the fine water droplets carried in the airflow.

2. The energy-saving water turbine fill-less cooling tower according to claim 1, characterized in that, The angle between the spray pipe (8) and the connecting pipe (7) is between 10 and 45°.

3. The energy-saving water turbine fill-less cooling tower according to claim 2, characterized in that, The angle between the spray pipe (8) and the connecting pipe (7) is 30°.

4. The energy-saving water turbine fill-less cooling tower according to claim 3, characterized in that, The water collection pool (3) is fixedly provided with 6 circumferentially evenly distributed support columns (11), and a support square tube (12) is fixedly provided on the upper end of the support column (11). The grid platform (13) is fixed on the support square tube (12).

5. The energy-saving water turbine fill-less cooling tower according to claim 4, characterized in that, The grid platform (13) is annular, with the outer ring connected to the inner wall of the cooling cylinder (1) and the inner ring connected to the air duct (14).

6. The energy-saving water turbine fill-less cooling tower according to claim 5, characterized in that, The diameter of the upper end of the air duct (14) is smaller than the diameter of the lower end.

7. The energy-saving water turbine fillerless cooling tower according to claim 6, characterized in that, A guide plate (15) is provided on the inner wall of the cooling cylinder (1) between the grid platform (13) and the louver (2) to guide the water left on the inner wall of the cooling cylinder (1) toward the central axis.

8. The energy-saving water turbine fill-less cooling tower according to claim 7, characterized in that, The guide plate (15) is a conical tube with a larger diameter at the top than at the bottom.

9. The energy saving water turbine fill-less cooling tower according to claim 8, characterized in that, The water collector (16) consists of multiple linearly and uniformly distributed water collection plates, and their ends are respectively connected and fixed to the inner wall of the cooling cylinder (1).

10. The energy saving water turbine fill-less cooling tower according to claim 9, characterized in that, The water-collecting plate has a wavy cross-section, which increases the contact area between water vapor and the water vapor.

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