Spray cooling device for air cooling island

Abstract

The utility model provides an air cooling island spray cooling device which is arranged at the bottom of a cooling tower in a surrounding mode. Comprising a sunshade arranged corresponding to the air cooling island, a plurality of stand columns supported on the outer edge of the sunshade, lifting mechanisms arranged on the stand columns and fan type spraying mechanisms arranged on the lifting mechanisms, and each fan type spraying mechanism comprises fan blades and a liquid spraying main pipe; the fan blades are arranged right opposite to the air cooling island, the liquid spraying mother pipe is installed in front of each blade of the fan blades, and a plurality of atomizing nozzles are distributed on the liquid spraying mother pipe so that the air cooling island can spray mist and blow air at the same time. The spray cooling device for the air cooling island has the advantages of being scientific in design, capable of saving water resources, wide in cooling coverage range and uniform in cooling effect.

Description

Technical Field

[0001] The utility model relates to cooling equipment for a power plant, in particular to a spray cooling device for an air cooling island. Background Art

[0002] There are many types of cooling towers in modern power plants, mainly circulating water cooling and indirect air cooling. Among them, indirect air cooling is mainly used in northwest my country. The air cooling island is an air cooling device installed at the bottom of the indirect air cooling cooling tower. The northwest region is often short of water and rain, and the air is extremely dry. Especially in summer, the sun exposure time is long, and the sun exposure will increase the temperature of the air cooling island, reduce its cooling efficiency, and thus affect the power generation efficiency. For this reason, patent 201820593169.6 discloses a sunshade air cooling device for power station cooling towers, which sets a sunshade device on the top of the cooling tower to reduce the impact of sun exposure on the air cooling island, but due to the relatively high ambient temperature, the cooling effect of the air cooling island is still not ideal.

[0003] The air-cooled island is huge. In order to further improve the cooling effect, patent 202122003860.9 discloses an air-cooled island spray cooling device, which sprays the outside of the air-cooled island by laying a spray pipe to achieve the purpose of cooling. In order to expand the spray coverage area, a self-rotating rod is set inside the diffuser. The self-rotating rod rotates rapidly with the assistance of the booster blade, driving the water-striking plate fixed with a spiral groove on the top to rotate and hit the water flow, thereby expanding the diffusion area of ​​the water flow. However, it has the following disadvantages: (1) In order to ensure the effective hitting of the water-striking plate, the nozzle must spray a water column, and long-term spraying consumes a lot of water resources; (2) In order to cover all directions, the spray pipe needs to be arranged from the top to the bottom of the air-cooled island, which further increases the consumption of water resources; (3) During the hitting process, the direction of the water column cannot be accurately controlled, and the cooling of the air-cooled island is not uniform.

[0004] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0005] The utility model aims to address the deficiencies of the prior art and thus provide an air-cooled island spray cooling device which has a scientific design, saves water resources, has a wide cooling coverage range, and has a uniform cooling effect.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an air-cooling island spray cooling device, the air-cooling island is surrounded at the bottom of the cooling tower, including a sunshade arranged corresponding to the air-cooling island, a plurality of columns supported on the outer edge of the sunshade, a lifting mechanism respectively arranged on each of the columns and a fan-type spray mechanism arranged on each of the lifting mechanisms, the fan-type spray mechanism includes fan blades and a liquid spray main pipe, the fan blades are arranged directly opposite to the air-cooling island, the liquid spray main pipe is installed in front of each blade of the fan blade, and a plurality of atomizing nozzles are distributed on the liquid spray main pipe so as to spray and blow air to the air-cooling island.

[0007] Based on the above, a lifting groove is opened on the side of the column facing the air-cooling island, the lifting mechanism is located in the lifting groove, the top of the lifting mechanism is driven to lift and lower by a pulley, and guide wheels are respectively arranged between the rear end of the lifting mechanism and the bottom of the lifting groove, and between the two sides of the lifting mechanism and the two side walls of the lifting groove to prevent the lifting mechanism from tilting during the lifting process.

[0008] Based on the above, the fan-type spray mechanism also includes a liquid rotary joint and a distribution pipe. The liquid rotary joint includes a shell installed on the lifting mechanism, a hollow shaft rotatably arranged in the shell, and a shaft driving mechanism for driving the hollow shaft to rotate. A liquid storage chamber is opened inside the shell, and a liquid inlet port is opened on the side wall. The hollow shaft is arranged to pass through the liquid storage chamber. The hollow shaft is provided with a liquid inlet on the side wall located at the liquid storage chamber. The liquid outlet end of the hollow shaft is connected to the liquid inlet end of the distribution pipe, the fan blades are arranged on the outer wall of the distribution pipe, and the liquid inlet end of the liquid spray main pipe is connected to the distribution pipe.

[0009] Based on the above, the shaft driving mechanism includes a driving motor and a pair of meshed bevel gears, wherein one bevel gear is mounted on the driving shaft of the driving motor, and the other bevel gear is mounted on the closed end of the hollow shaft.

[0010] Based on the above, bearings and sealing mechanisms are installed between the two ends of the hollow shaft and the inner wall of the shell.

[0011] Based on the above, it also includes a liquid inlet main pipe, and the liquid inlet main pipe is respectively provided with a liquid inlet branch pipe corresponding to each of the liquid rotary joints, and each of the liquid inlet branch pipes is installed with a solenoid valve.

[0012] Based on the above, the end of the liquid inlet branch pipe is connected to a robot arm pipeline, and the robot arm pipeline is composed of multiple sections of liquid pipelines hinged together. The end of the robot arm pipeline is connected to the liquid inlet port of the liquid rotary joint.

[0013] Based on the above, it also includes a solar power controller and a battery. The awning is covered with solar panels. The solar panels store electrical energy into the battery through the power controller, and the battery supplies power to the electrical equipment on the air-cooled island spray cooling device.

[0014] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model realizes spraying operation from top to bottom by arranging the lifting mechanism on the column to drive the fan-type spray mechanism to rise and fall. After the liquid spray main pipe sprays water mist, the fan blades rotate to blow the water mist to a wider range to achieve wide coverage. Compared with the traditional air-cooled island spray device, it has the advantages of scientific design, water resource saving, wide cooling coverage and uniform cooling effect.

[0015] Furthermore, the top of the lifting mechanism is lifted and lowered by a pulley. Since the fan-type spray mechanism is relatively heavy, guide wheels are arranged on both sides and the rear to improve the lifting stability. By opening the liquid storage chamber in the shell and installing the hollow shaft, the liquid is transported while rotating, thereby realizing the function of the fan-type spray mechanism spraying and blowing at the same time. The drive motor drives the hollow shaft to rotate through a pair of bevel gears, so that the drive motor can be perpendicular to the lifting mechanism, making the structure more compact. Solenoid valves are respectively installed on each of the liquid inlet branches to facilitate the control of the opening and closing of each of the liquid inlet branches. The mechanical arm pipeline can realize the liquid supply function without affecting the lifting and lowering of the lifting mechanism through a multi-section liquid pipeline hinged together. The solar panel can convert solar energy into electrical energy, which is stored by the battery, saving electricity for the entire spray device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereoscopic diagram of the air-cooled island spray cooling device (the liquid inlet main pipe and the liquid inlet branch pipe are not shown) in Example 1 of the utility model.

[0017] Figure 2 It is a top view of the air cooling island spray cooling device in Example 1 of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the lifting mechanism installed on the column in Example 1 of the utility model.

[0019] Figure 4 It is a top view of the lifting mechanism installed on the column in Example 1 of the utility model.

[0020] Figure 5 It is a structural schematic diagram of the fan-type spray mechanism in Example 1 of the utility model.

[0021] In the figure: 1. air cooling island; 2. cooling tower; 3. sunshade; 4. column; 5. lifting mechanism; 6. liquid rotary joint; 7. distribution pipe; 8. fan blade; 9. main spray pipe; 10. atomizing nozzle; 11. lifting trough; 12. pulley; 13. guide wheel; 14. liquid inlet main pipe; 15. liquid inlet branch pipe; 16. robot arm pipeline; 61. outer shell; 62. hollow shaft; 63. liquid storage chamber; 64. liquid inlet port; 65. liquid inlet; 66. drive motor; 67. bevel gear. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0023] Example 1

[0024] like Figure 1-5 As shown, an air-cooling island spray cooling device, the air-cooling island 1 is surrounded by the bottom of the cooling tower 2, including a sunshade 3 arranged corresponding to the air-cooling island 1, a plurality of columns 4 supported on the outer edge of the sunshade 3, a lifting mechanism 5 respectively arranged on each of the columns 4 and a fan-type spray mechanism arranged on each of the lifting mechanisms 5.

[0025] The fan-type spray mechanism specifically includes a liquid rotary joint 6, a distribution pipe 7, a fan blade 8 and a liquid spraying main pipe 9. The liquid rotary joint 6 includes a shell 61 installed on the lifting mechanism 5, a hollow rotating shaft 62 rotatably arranged in the shell 61, and a rotating shaft driving mechanism for driving the hollow rotating shaft 62 to rotate. The shell 61 is provided with a liquid storage cavity 63 inside and a liquid inlet port 64 on the side wall. The hollow rotating shaft 62 is arranged to pass through the liquid storage cavity 63, and bearings are installed between the two ends of the hollow rotating shaft 62 and the inner wall of the shell 61. and a sealing mechanism, the hollow shaft 62 is provided with a liquid inlet 65 on the side wall located at the liquid storage chamber 63, the liquid outlet end of the hollow shaft 62 is connected to the liquid inlet end of the distribution pipe 7; the fan blades 8 are arranged on the outer wall of the distribution pipe 7, the fan blades 8 are arranged directly opposite to the air-cooling island 1, the liquid inlet end of the liquid spray mother pipe 9 is connected to the distribution pipe 7, the liquid spray mother pipe 9 is installed in front of each blade of the fan blade 8, and a plurality of atomizing nozzles 10 are distributed on the liquid spray mother pipe 9 so as to spray and blow air to the air-cooling island 1.

[0026] The shaft driving mechanism includes a driving motor 66 and a pair of meshed bevel gears 67 , wherein one bevel gear 67 is mounted on the driving shaft of the driving motor 66 , and the other bevel gear 67 is mounted on the closed end of the hollow shaft 62 .

[0027] A lifting groove 11 is provided on the side of the column 4 facing the air-cooling island 1, and the lifting mechanism 5 is located in the lifting groove 11. The top of the lifting mechanism 5 is driven to lift and lower by a pulley 12, and the pulley 12 can be specifically driven by a winch mechanism arranged on the top of the column 4. In order to improve the lifting stability, guide wheels 13 are respectively arranged between the rear end of the lifting mechanism 5 and the bottom of the lifting groove 11, and between the two sides of the lifting mechanism 5 and the two side walls of the lifting groove 11, so as to prevent the lifting mechanism 5 from tilting during the lifting process.

[0028] In order to ensure normal liquid supply, the air-cooling island spray cooling device also includes a liquid inlet main pipe 14, and the liquid inlet main pipe 14 is respectively provided with a liquid inlet branch pipe 15 corresponding to each of the liquid rotary joints 6, and each of the liquid inlet branch pipes 15 is installed with a solenoid valve; the end of the liquid inlet branch pipe 15 is connected to a mechanical arm pipeline 16, and the mechanical arm pipeline 16 is composed of a plurality of liquid pipelines hinged together, and the end of the mechanical arm pipeline 16 is connected to the liquid inlet port 64 of the liquid rotary joint 6; in this way, the liquid supply function can be realized without affecting the lifting and lowering of the lifting mechanism 5.

[0029] During specific use, the lifting mechanism 5 is lifted and lowered to drive the fan-type spray mechanism to lift and lower, thereby realizing a spraying operation from top to bottom. After the atomizing nozzle 10 on the liquid spray main pipe 9 sprays water mist, the fan blades 8 rotate to blow the water mist to a wider range, thereby realizing a wide range coverage in width and realizing a cooling operation on the air-cooling island 1.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the air-cooled island spray cooling device also includes a solar power controller and a battery. The awning 3 is covered with solar panels. The solar panels store electrical energy in the battery through the power controller. The battery supplies power to electrical equipment on the air-cooled island spray cooling device, thereby achieving the purpose of saving electricity.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. An air-cooling island spray cooling device, wherein the air-cooling island is arranged at the bottom of a cooling tower, characterized in that: It includes a sunshade arranged corresponding to the air-cooling island, a plurality of columns supported on the outer edge of the sunshade, a lifting mechanism respectively arranged on each of the columns, and a fan-type spray mechanism arranged on each of the lifting mechanisms. The fan-type spray mechanism includes fan blades and a liquid spray main pipe. The fan blades are arranged directly opposite to the air-cooling island. The liquid spray main pipe is installed in front of each blade of the fan blade. A plurality of atomizing nozzles are distributed on the liquid spray main pipe so as to spray and blow air to the air-cooling island at the same time.

2. The air-cooling island spray cooling device according to claim 1 is characterized in that: A lifting groove is provided on the side of the column facing the air-cooling island, the lifting mechanism is located in the lifting groove, the top of the lifting mechanism is driven to lift by a pulley, and guide wheels are respectively provided between the rear end of the lifting mechanism and the bottom of the lifting groove, and between the two sides of the lifting mechanism and the two side walls of the lifting groove to prevent the lifting mechanism from tilting during the lifting process.

3. The air-cooling island spray cooling device according to claim 1 or 2, characterized in that: The fan-type spray mechanism also includes a liquid rotary joint and a distribution pipe. The liquid rotary joint includes a shell installed on the lifting mechanism, a hollow shaft rotatably arranged in the shell, and a shaft driving mechanism for driving the hollow shaft to rotate. A liquid storage cavity is provided inside the shell, and a liquid inlet port is provided on the side wall. The hollow shaft passes through the liquid storage cavity. A liquid inlet is provided on the side wall of the hollow shaft located at the liquid storage cavity. The liquid outlet end of the hollow shaft is connected to the liquid inlet end of the distribution pipe. The fan blades are arranged on the outer wall of the distribution pipe, and the liquid inlet end of the liquid spray main pipe is connected to the distribution pipe.

4. The air-cooling island spray cooling device according to claim 3 is characterized in that: The rotating shaft driving mechanism comprises a driving motor and a pair of meshed bevel gears, wherein one bevel gear is mounted on the driving shaft of the driving motor and the other bevel gear is mounted on the closed end of the hollow rotating shaft.

5. The air-cooling island spray cooling device according to claim 4 is characterized in that: Bearings and sealing mechanisms are installed between the two ends of the hollow rotating shaft and the inner wall of the shell.

6. The air-cooling island spray cooling device according to claim 4 or 5, characterized in that: It also includes a liquid inlet main pipe, and the liquid inlet main pipe is respectively provided with a liquid inlet branch pipe corresponding to each of the liquid rotary joints, and each of the liquid inlet branch pipes is installed with a solenoid valve.

7. The air-cooling island spray cooling device according to claim 6 is characterized in that: The end of the liquid inlet branch pipe is connected to a mechanical arm pipeline, and the mechanical arm pipeline is composed of multiple sections of liquid pipelines hinged together. The end of the mechanical arm pipeline is connected to the liquid inlet port of the liquid rotary joint.

8. The air-cooling island spray cooling device according to any one of claims 1, 2, 4, 5 and 7, characterized in that: It also includes a solar power controller and a storage battery. The awning is covered with a solar panel, and the solar panel stores electrical energy in the storage battery through the power controller. The storage battery supplies power to electrical equipment on the air-cooled island spray cooling device.

Images