Air cooling island rain cooling device

Abstract

The utility model discloses a rain cooling device for an air cooling island, which relates to the technical field of air cooling island cooling and comprises a desalting water tank, a desalting water pump, a cooling spray gun and a spray gun swing driving device, the desalting water tank is connected with the cooling spray gun through a desalting water pipeline, the desalting water pump is arranged on the desalting water pipeline, and the spray gun swing driving device is arranged on the cooling spray gun. The cooling spray gun comprises a spray gun barrel and deluge nozzles, the two ends of the spray gun barrel are rotationally connected to the mounting support, a demineralized water connecting pipe is arranged on the spray gun barrel and connected with the demineralized water pipeline, and the multiple deluge nozzles are mounted on the spray gun barrel and used for spraying water above cooling fins of the air cooling island. The spray gun swing driving device is connected with the spray gun barrel and used for driving the spray gun barrel to swing. The heat dissipation efficiency of the air cooling island can be improved, and it is guaranteed that a unit can normally run in a full-load mode in a high-temperature environment in summer.

Description

TECHNICAL FIELD

[0001] The utility model relates to air cooling island cooling and temperature reduction technical field, especially a kind of air cooling island rain shower cooling device. BACKGROUND

[0002] Thermal power plant is referred to as thermal power plant, and is a factory using combustible as fuel to produce electric energy, since the exhaust steam after work of steam turbine needs to be cooled and condensed into water for recycling, and the heat released in the condensation process is cooled by direct air cooling mode in most power plants, and the heat is brought to the atmosphere by fan. Its operating condition is greatly affected by the surrounding environment. Under different environmental temperature and wind speed, the unit exhaust pressure and exhaust temperature will change greatly, and will be significantly increased with the rise of air temperature. Through actual operation parameter measurement, when the environmental temperature reaches 30 DEG C, the condensate temperature on the fin cooling pipe is above 65 DEG C, and the fine treatment will automatically exit operation, which affects the steam quality and brings great risk to the safe operation of unit. At this time, only the load operation can be reduced, which greatly restricts the load capacity of unit. At the same time, the increase of condensate temperature will greatly increase the back pressure of steam turbine, and the highest back pressure can reach 40KPa, which not only threatens the safe operation of generator set, but also affects the coal consumption of about 1.5g / KWh per 1KPa increase of unit back pressure, and increases the cost of power generation.

[0003] At present, the air cooling island cooling device existing in the market is often relied on to spray water mist under the air cooling island to take away more heat of the air cooling island and improve the heat dissipation capacity of the air cooling island. Although the purpose of cooling the air cooling island is achieved, a large amount of water droplets fall on the ground under the air cooling island during the process of spraying water mist, which causes a large amount of waste of desalted water, and the nozzle is installed under the heat dissipation fin of the air cooling island, which is not convenient for daily maintenance. Therefore, it is necessary to design an air cooling island cooling device to ensure that the unit can operate normally under full load in summer high temperature environment and meet the requirements of the owner on the operation of the unit. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an air cooling island rain shower cooling device to solve the problems existing in the prior art and improve the heat dissipation efficiency of air cooling island and ensure that the unit can operate normally under full load in summer high temperature environment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0006] The utility model provides a kind of air cooling island rain shower cooling device, including desalted water tank, desalted water pump, cooling spray gun and spray gun swing driving device, the desalted water tank is connected the cooling spray gun by desalted water pipeline, the desalted water pump is set on the desalted water pipeline, the cooling spray gun includes spray gun barrel and rain shower nozzle, spray gun barrel both ends are rotatably connected on mounting bracket, desalted water connecting pipe is equipped on the spray gun barrel, the desalted water connecting pipe is connected with the desalted water pipeline, multiple rain shower nozzles are installed on the spray gun barrel, for spraying water above air cooling island fin, the spray gun swing driving device is connected with the spray gun barrel, for driving the spray gun barrel swing.

[0007] Preferably, the spray gun swing driving device includes a reduction motor, a drive wheel and a connecting rod, the spray gun barrel is fixedly provided with a swing arm, one end of the connecting rod is rotatably connected with the free end of the swing arm, the other end is rotatably connected to the drive wheel through an eccentric shaft, the eccentric shaft is eccentrically installed on the drive wheel, the drive wheel is fixed to the output shaft of the reduction motor, and the reduction motor is fixedly installed on the mounting bracket.

[0008] Preferably, the desalted water pipeline is provided with a flow regulating valve.

[0009] Preferably, the spray gun barrel is rotatably connected to the bearing bracket through bearings at both ends, and the bearing bracket is fixedly installed on the mounting bracket by bolts.

[0010] Preferably, the rain shower nozzle is connected to the spray gun barrel through a stainless steel corrugated pipe.

[0011] Preferably, the cooling spray gun is installed between the two groups of A-shaped radiators of the air cooling island.

[0012] Preferably, the swing arm is provided with a plurality of mounting holes in the length direction, and the connecting rod is connected to one of the mounting holes through a pin shaft.

[0013] The utility model has the following technical effects compared with the prior art:

[0014] The air cooling island rain shower cooling device provided by the utility model can cool the cooling pipes of the air cooling island heat dissipation fins, and further improve the heat dissipation efficiency of the air cooling island. Meanwhile, the water spraying mode of the device is to spray water above the air cooling island heat dissipation fins, which greatly reduces the possibility of the sprayed desalted water falling on the ground. The water drops of the air cooling island heat dissipation fins can reduce the air temperature of the cooling air cooling island heat dissipation fins, and further improve the cooling effect of the air cooling island. The spraying gun swinging device is matched with different types of rain shower nozzles, which increases the application range; meanwhile, long-time large-flow water spraying can achieve the effect of cleaning the air cooling water heat dissipation fins, and can ensure the working efficiency of the air cooling island. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings.

[0016] Figure 1 It is a structural schematic view of the air cooling island rain shower cooling device in the embodiments of the utility model;

[0017] Figure 2 It is a connection structural schematic view of the cooling spraying gun and the spraying gun swinging driving device in the embodiments of the utility model;

[0018] Figure 3 It is a structural schematic view of the spraying gun barrel in the embodiments of the utility model;

[0019] Figure 4 It is a structural schematic view of the cooling spraying gun in the embodiments of the utility model;

[0020] Figure 5 It is a connection structural schematic view of the spraying gun barrel and the rain shower nozzle in the embodiments of the utility model;

[0021] Figure 6 It is a schematic view of the spraying gun barrel being installed on the installation support through the bearing and the bearing frame in the embodiments of the utility model.

[0022] In the drawing: 1-desalted water tank, 2-desalted water pump, 3-cooling spraying gun, 4-spraying gun swinging driving device, 5-desalted water pipeline, 6-spraying gun barrel, 7-rain shower nozzle, 8-installation support, 9-desalted water connecting pipeline, 10-reduction motor, 11-driving wheel, 12-connecting rod, 13-swinging arm, 14-flow regulating valve, 15-bearing, 16-bearing frame, 17-bolt, 18-stainless steel corrugated pipe, 19-air cooling island. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] The utility model discloses a kind of air cooling island rain shower cooling devices, to solve the problems existing in prior art, can improve air cooling island heat dissipation efficiency, ensure that unit can be full load normal operation when in summer high temperature environment.

[0025] In order to make the above purposes, features and advantages of the utility model more apparent, easy to understand, the utility model is further explained in detail below with reference to the drawings and specific embodiments.

[0026] As Figures 1-6 The utility model provides a kind of air cooling island rain shower cooling device, including desalted water tank 1, desalted water pump 2, cooling spray gun 3 and spray gun swing driving device 4, desalted water tank 1 is connected cooling spray gun 3 by desalted water pipeline 5, desalted water pump 2 is set on desalted water pipeline 5, and flow regulating valve 14 is equipped on desalted water pipeline 5, cooling spray gun 3 includes spray gun barrel 6 and rain shower nozzle 7, spray gun barrel 6 both ends are rotatably connected in mounting bracket 8, and desalted water connecting pipe 9 is equipped on spray gun barrel 6, desalted water connecting pipe 9 is connected with desalted water pipeline 5, and multiple rain shower nozzles 7 are installed on spray gun barrel 6, for spraying water above air cooling island 19 fin, spray gun swing driving device 4 is connected with spray gun barrel 6, for driving spray gun barrel 6 swing.

[0027] Among them, cooling spray gun 3 gun is installed between two groups A of air cooling island 19 heat radiator, with the characteristics of convenient installation and maintenance. Desalted water pump 2 is installed in the workshop near air cooling island 19, rain shower nozzle 7 outlet adopts single round hole water outlet, multiple round hole water outlet, oval flat mouth water outlet and the like, according to the need of spraying distance and area, select rain shower nozzle 7 with suitable outlet size.

[0028] In use, the desalted water tank 1 is filled with desalted water, the desalted water pump 2 is started, the desalted water is supplied to the top of the air cooling island 19 through the desalted water pipeline 5 by the desalted water pump 2, the flow regulating valve 14 is opened, the desalted water fills the gun barrel 6 and is sprayed out through the rain shower nozzle 7, the spray gun swing driving device 4 is started, the desalted water sprayed out by the rain shower nozzle 7 falls on the air cooling island radiator uniformly, the desalted water on the cooling fins evaporates and takes away a large amount of heat, which can cool the finned cooling pipe and further improve the heat dissipation efficiency of the air cooling island 19, so as to ensure the cooling effect of the air cooling island 19 and enable the unit to run at full load in a high-temperature environment in summer, thereby meeting the requirements of the owner on the unit operation.

[0029] If the spraying is not uniform, the spraying angle of the rain shower nozzle can be manually adjusted or the nozzle type can be replaced to achieve uniform spraying. If the sprayed desalted water is too much and a large amount of desalted water falls to the ground through the air cooling island radiator, the desalted water spraying amount can be adjusted through the flow regulating valve 14. The cooling spray gun 3 can be used in multiple sections in series to meet the requirements of different sizes of air cooling islands and facilitate maintenance and repair.

[0030] In this embodiment, the spray gun swing driving device 4 includes a speed reducer 10, a driving wheel 11 and a connecting rod 12, the swing arm 13 is fixedly arranged on the gun barrel 6, one end of the connecting rod 12 is rotatably connected to the free end of the swing arm 13, the other end is rotatably connected to the driving wheel 11 through an eccentric shaft, the eccentric shaft is eccentrically arranged on the driving wheel 11, the driving wheel 11 is fixed to the output shaft of the speed reducer 10, and the speed reducer 10 is fixedly arranged on the mounting bracket 8. The driving wheel 11 is driven to rotate by the speed reducer 10, and the gun barrel 6 is driven to swing by the connecting rod 12 and the swing arm 13, so that the desalted water is uniformly sprayed.

[0031] In this embodiment, the two ends of the gun barrel 6 are rotatably connected to the bearing bracket 16 through the bearings 15, and the bearing bracket 16 is fixedly arranged on the mounting bracket 8 through the bolts 17.

[0032] In this embodiment, the rain shower nozzle 7 is connected to the gun barrel 6 through the stainless steel corrugated pipe 18. In use, the angle of the rain shower nozzle 7 can be manually adjusted to ensure that the sprayed water droplets fall uniformly on the air cooling island radiator.

[0033] In this embodiment, a plurality of mounting holes are arranged in the length direction of the swing arm 13, and the connecting rod 12 is connected to one of the mounting holes through a pin shaft. By arranging the connecting rod 12 in different mounting holes, the swing angle can be adjusted.

[0034] The principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. An air-cooled island rain shower cooling device, characterized by: The device comprises a desalted water tank, a desalted water pump, a cooling spray gun and a spray gun swing driving device, the desalted water tank is connected with the cooling spray gun through a desalted water pipeline, the desalted water pump is arranged on the desalted water pipeline, the cooling spray gun comprises a spray gun barrel and a rain shower nozzle, both ends of the spray gun barrel are rotatably connected with a mounting bracket, a desalted water connecting pipe is arranged on the spray gun barrel and connected with the desalted water pipeline, a plurality of rain shower nozzles are arranged on the spray gun barrel and used for spraying water above the heat dissipation fins of the air cooling island, the spray gun swing driving device is connected with the spray gun barrel and used for driving the spray gun barrel to swing.

2. The rain shower cooling device for air cooling island according to claim 1, characterized in that: The spray gun swing driving device comprises a reduction motor, a driving wheel and a connecting rod, a swing arm is fixedly arranged on the spray gun barrel, one end of the connecting rod is rotatably connected with a free end of the swing arm, the other end is rotatably connected with the driving wheel through an eccentric shaft, the eccentric shaft is eccentrically arranged on the driving wheel, the driving wheel is fixed on an output shaft of the reduction motor, and the reduction motor is fixedly arranged on the mounting bracket.

3. The rain shower cooling device for air cooling island according to claim 1, characterized in that: A flow regulating valve is arranged on the desalted water pipeline.

4. The air cooling island rain shower cooling device according to claim 1, characterized in that: Both ends of the spray gun barrel are rotatably connected with a bearing bracket through bearings, and the bearing bracket is fixedly arranged on the mounting bracket through bolts.

5. The air cooling island rain shower cooling device according to claim 1, characterized in that: The rain shower nozzle is connected with the spray gun barrel through a stainless steel bellows.

6. The rain shower cooling device for air cooling island according to claim 1, characterized in that: The cooling spray gun is arranged between two groups of A-shaped heat dissipaters of the air cooling island.

7. The rain shower cooling device for air cooling island according to claim 2, characterized in that: A plurality of mounting holes are arranged in the length direction of the swing arm, and the connecting rod is connected with one of the mounting holes through a pin shaft.

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