Underground cooling tower structure for subway station

Abstract

The utility model discloses an underground cooling tower structure for subway station, including the horizontal air outlet type cooling tower of setting in the ground, the first piston air shaft of protruding station ground, the second piston air shaft and the intercommunication passage between both, and the cooling tower is horizontally installed in the intercommunication passage, the cooling tower includes fan and sprinkler, and the fan is horizontally arranged at one side of sprinkler, and the sprinkler is vertically arranged at the side of cooling tower close to the first piston air shaft, the axis of fan extends along the length direction of intercommunication passage. Underground cooling tower structure for subway station of the application, compared with the cooling tower of traditional vertical setting, the cooling tower of horizontal setting can make full use of the first piston air shaft, the second piston air shaft of existing, need not additionally increase cooling tower inlet and exhaust air duct alone, and the cooling tower conforms to the air current direction of piston air shaft, reduces the wind resistance, improves ventilation efficiency, reduces the installation space, and simultaneously does not affect the net area of first piston air shaft, second piston air shaft.

Description

Technical Field

[0001] This application relates to the field of rail transit engineering technology, specifically to an underground cooling tower structure for subway stations. Background Technology

[0002] With the increasing demand for urbanization and the rapid development of cities in my country, rail transit has greatly facilitated the travel of modern people, and subways have gradually become an important public infrastructure in cities. Subway station cooling towers are an important component of the subway air conditioning system.

[0003] Currently, the majority of cooling sources for subway stations in China consist of chillers and cooling towers, with the cooling towers typically located near the ground. However, due to urban planning and development requirements, the site selection space for subway station cooling towers in city centers is extremely limited. For aesthetic reasons, based on the relative position of the cooling tower to the station, they can be categorized into ground-mounted cooling towers (above-ground type), sunken cooling towers (semi-underground type), and duct-type cooling towers (fully underground type).

[0004] Currently, most of the cooling towers for rail transit lines under construction or already built in China are ground-mounted cooling towers (or placed on the roof of a building). The engineering design must ensure that there are sufficient conditions around the cooling tower to meet its thermal requirements, while also minimizing the impact on the surrounding environment.

[0005] Conventional ground cooling towers cannot avoid the impact of noise on surrounding buildings; underground cooling towers are prone to short-circuiting of inlet and outlet air due to poor ventilation and heat dissipation, resulting in poor thermal performance; duct-type cooling towers not only have poor ventilation and heat dissipation and poor thermal performance, but also affect the ventilation area of ​​the duct.

[0006] Therefore, there is room for further improvement in the arrangement of cooling towers in the prior art. Utility Model Content

[0007] In view of this, and in response to the technical problems of poor ventilation and heat dissipation in existing underground cooling towers, which easily lead to short-circuiting of inlet and outlet air and poor thermal performance, this application provides an underground cooling tower structure for subway stations. By constructing the cooling tower together with the piston ventilation shaft of the subway station, the impact of the cooling tower on surrounding buildings can be effectively avoided. At the same time, the piston ventilation shaft can be used to separate the inlet and outlet air of the cooling tower, avoiding short-circuiting of the inlet and outlet air of the cooling tower and effectively improving the thermal performance of the cooling tower.

[0008] To achieve the above objectives, this application provides the following technical solution: an underground cooling tower structure for subway stations, comprising:

[0009] Cooling towers installed underground;

[0010] The cooling tower is installed horizontally within the connecting channel, comprising a first piston ventilation shaft extending above the station ground, a second piston ventilation shaft, and a connecting channel between the two.

[0011] The cooling tower includes a fan and a spray device. The fan is arranged horizontally on one side of the spray device, and the spray device is arranged vertically on the side of the cooling tower near the first piston air shaft.

[0012] The axis of the fan extends along the length of the connecting channel.

[0013] Compared to existing technologies, this application features a horizontally arranged cooling tower. Compared to traditional vertically arranged cooling towers, the horizontally arranged cooling tower can fully utilize the existing first and second piston air shafts without the need for additional cooling tower inlet and exhaust ducts. The cooling tower follows the airflow direction of the first and second piston air shafts, reducing wind resistance, improving ventilation efficiency, and reducing installation space, while not affecting the net area of ​​the first and second piston air shafts. The fan axis extends along the length of the connecting channel, indicating that the fan pushes airflow along the channel length. The spray device is vertically arranged, spraying water from top to bottom, while the air blows horizontally. This design accelerates ventilation area, resulting in faster airflow and ensuring smooth air circulation, thus improving the overall cooling effect.

[0014] Preferably, the cooling tower is provided with an air inlet and an air outlet on both sides facing the first piston air shaft and the second piston air shaft, respectively. The air inlet is connected to the first piston air shaft, and the air outlet is connected to the second piston air shaft.

[0015] In this embodiment, the first piston air shaft serves as the air inlet shaft of the cooling tower, and the second piston air shaft serves as the air outlet shaft of the cooling tower. There is no need to set up separate air inlet and air outlet shafts for the cooling tower, which achieves effective separation of the air inlet and outlet of the cooling tower, avoids short circuit of the air inlet and outlet of the cooling tower, and effectively improves the thermal performance of the cooling tower.

[0016] Preferably, the cooling tower is equipped with fireproof roller shutters on both sides facing the first piston air shaft and the second piston air shaft.

[0017] In this embodiment, the fireproof roller shutter can effectively isolate the connection between the cooling tower and the piston ventilation shaft in emergency situations such as fire, prevent the spread of fire, improve the safety of the subway station, and ensure the integrity of the fire resistance performance of the first and second piston ventilation shafts.

[0018] Preferably, the cooling tower is further provided with a packing layer, which is located below the spraying device;

[0019] The spraying device is equipped with a water inlet.

[0020] In this embodiment, by providing a water inlet on the spray device, the water inlet facilitates the supply and circulation of cooling water.

[0021] Preferably, the cooling tower further includes a baffle plate disposed on the side of the packing layer away from the air inlet.

[0022] In this embodiment, a baffle plate is installed to block water droplets splashed from the packing layer, preventing water droplets from entering other parts of the cooling tower or the external environment, thus ensuring the normal operation of the cooling tower and the dryness of the surrounding environment.

[0023] Preferably, a water collection trough is provided below the packing layer and the baffle plate, located on the side of the cooling tower away from the station ground;

[0024] The water collection tank is provided with an outlet, which is connected to the inlet.

[0025] In this embodiment, a water collection tank is provided to collect the cooling water flowing down from the packing layer and the baffle plate, and the cooling water is returned to the inlet of the spray device through the outlet, so as to realize the recycling of cooling water and save water resources.

[0026] Preferably, the packing layer and the baffle plate are arranged laterally, and the packing layer and the baffle plate extend along the length of the connecting channel.

[0027] In this embodiment, the horizontal arrangement can effectively utilize the space inside the cooling tower, increase the airflow area, and make the airflow smoother and faster, thereby improving the efficiency of heat exchange.

[0028] Preferably, the dimensions of the connecting channel are adapted to the cooling tower.

[0029] In this embodiment, the cooling tower can be installed more stably underground, while avoiding any impact on the normal operation of the subway station. Attached Figure Description

[0030] Figure 1 A schematic diagram of the concourse structure of an underground cooling tower structure for a subway station provided in an embodiment of this application;

[0031] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of AA.

[0032] In the diagram: 1. Cooling tower; 2. First piston air shaft; 3. Second piston air shaft;

[0033] 11. Fireproof roller shutter; 12. Filler layer; 13. Sprinkler device; 14. Water baffle; 15. Fan wall; 16. Water collection tank; 161. Water outlet; 131. Water inlet. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0035] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0036] Those skilled in the art should understand that in the disclosure of this application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0037] The present application will now be described in further detail with reference to the accompanying drawings, see below. Figures 1 to 2 illustrate.

[0038] Please see Figures 1-2 This application provides an underground cooling tower structure for subway stations, applied in the field of rail transit engineering technology. It includes a cooling tower 1 installed underground, a first piston ventilation shaft 2 and a second piston ventilation shaft 3 extending above the station ground, and a connecting passage between them. The cooling tower 1 is installed horizontally within the connecting passage, the dimensions of which are adapted to the cooling tower 1, ensuring stable underground installation while avoiding impact on the normal operation of the subway station. Compared to traditional vertically installed cooling towers, the horizontally installed cooling tower 1 follows the airflow direction, reducing wind resistance and improving ventilation efficiency. Furthermore, the horizontal underground installation of the cooling tower 1, fitting seamlessly with the underground station structure, reduces its installation height, effectively minimizing the need for ground space. It eliminates the need for separate ductwork or air channels for the cooling tower 1, improving airflow speed and smoothness. This design is particularly suitable for the cooling needs of subway stations in urban centers, producing no noise or water pollution to the surrounding environment, saving valuable surface area in city centers, and promoting green construction.

[0039] The cooling tower 1 includes fans 15 and spray devices 13. Multiple fans 15 are configured, and their number and power are typically designed and selected based on the actual needs and dimensions of the cooling tower 1. The fans 15 are horizontally positioned on one side of the spray devices 13, which are vertically positioned on the side of the cooling tower 1 near the first piston air shaft 2. The fans 15 are used to accelerate the airflow speed within the cooling tower 1, improving heat exchange efficiency. The axis of the fans 15 extends along the length of the connecting channel. The fans 15 propel airflow along the channel length. The spray devices 13 are vertically positioned, spraying water from top to bottom, while the airflow is horizontal. This design increases the ventilation area, resulting in faster airflow and ensuring smooth air circulation, thus improving the overall cooling effect.

[0040] Furthermore, the cooling tower 1 has an air inlet and an air outlet on both sides facing the first piston air shaft 2 and the second piston air shaft 3, respectively. The air inlet is connected to the first piston air shaft 2, and the air outlet is connected to the second piston air shaft 3. The fan 15 is located on one side of the air outlet. The first piston air shaft 2 serves as the air inlet of the cooling tower 1, and the second piston air shaft 3 serves as the air outlet of the cooling tower 1. It is not necessary to set up separate air inlet and air outlet shafts for the cooling tower 1, which realizes effective separation of the air inlet and exhaust of the cooling tower 1, avoids short circuit of the air inlet and exhaust of the cooling tower 1, and effectively improves the thermal performance of the cooling tower 1.

[0041] Furthermore, such as Figure 2 As shown, fireproof roller shutters 11 are provided on both sides of the cooling tower 1 facing the first piston ventilation shaft 2 and the second piston ventilation shaft 3. The fireproof roller shutters 11 can effectively isolate the connection between the cooling tower 1 and the piston ventilation shaft in emergency situations such as fire, prevent the spread of fire, improve the safety of the subway station, and ensure the integrity of the fire resistance performance of the first piston ventilation shaft 2 and the second piston ventilation shaft 3.

[0042] Furthermore, such as Figure 2 As shown, the cooling tower 1 contains a packing layer 12 located below a spray device 13. The spray device 13 has an inlet 131 for convenient supply and circulation of cooling water. Multiple nozzles are provided at the end of the spray device 13 facing the packing layer 12. These nozzles evenly spray cooling water onto the packing layer 12. The packing layer 12 increases the contact area between the cooling water and the air, maximizing the removal of moisture and heat, thereby improving heat exchange efficiency and overall operating efficiency. The cooling water sprayed from the nozzles forms a water film on the surface of the packing material. This water film slowly flows down the packing layer 12, allowing the cooling water to remain on the packing for a longer period, thus ensuring the cooling efficiency of the cooling water.

[0043] Furthermore, such as Figure 2As shown, the cooling tower 1 also includes a baffle plate 14, which is located on the side of the packing layer 12 away from the air inlet. The baffle plate 14 is used to block water droplets splashed out of the packing layer 12, preventing water droplets from entering other parts of the cooling tower 1 or the external environment, and ensuring the normal operation of the cooling tower 1 and the dryness of the surrounding environment.

[0044] The packing layer 12 and the baffle plate 14 are arranged horizontally and extend along the length of the connecting channel. This can effectively utilize the space inside the cooling tower 1, while making the airflow smoother and faster, thus improving the efficiency of heat exchange.

[0045] The cooling tower 1 is located on the side away from the station ground, below the packing layer 12 and the baffle plate 14. The water collection tank 16 is provided with an outlet 161, which is connected to the inlet 131. The water collection tank 16 is used to collect the cooling water flowing down from the packing layer 12 and the baffle plate 14, and the cooling water is returned to the inlet 131 of the spray device 13 through the outlet 161, so as to realize the recycling of cooling water and save water resources.

[0046] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A structure for an underground cooling tower used in a subway station, characterized in that, include: Cooling towers installed underground (1); The first piston ventilation shaft (2), the second piston ventilation shaft (3), and the connecting channel between the two extend out of the station ground, and the cooling tower (1) is installed horizontally in the connecting channel; The cooling tower (1) includes a fan (15) and a spray device (13). The fan (15) is arranged horizontally on one side of the spray device (13), and the spray device (13) is arranged vertically on the side of the cooling tower (1) near the first piston air shaft (2). The axis of the fan (15) extends along the length of the connecting channel.

2. The underground cooling tower structure for subway stations according to claim 1, characterized in that, The cooling tower (1) has an air inlet and an air outlet on both sides facing the first piston air shaft (2) and the second piston air shaft (3), respectively. The air inlet is connected to the first piston air shaft (2), and the air outlet is connected to the second piston air shaft (3).

3. The underground cooling tower structure for subway stations according to claim 1, characterized in that, Fireproof roller shutters (11) are provided on both sides of the cooling tower (1) facing the first piston air shaft (2) and the second piston air shaft (3).

4. The underground cooling tower structure for subway stations according to claim 1, characterized in that, The cooling tower (1) is also provided with a packing layer (12), which is located below the spray device (13); The spray device (13) is provided with a water inlet (131).

5. The underground cooling tower structure for subway stations according to claim 4, characterized in that, The cooling tower (1) also includes a baffle plate (14) located on the side of the packing layer (12) away from the air inlet.

6. The underground cooling tower structure for subway stations according to claim 5, characterized in that, A water collection trough (16) is provided below the packing layer (12) and the baffle plate (14), located on the side of the cooling tower (1) away from the station ground; The water collection tank (16) is provided with an outlet (161), which is connected to the inlet (131).

7. The underground cooling tower structure for subway stations according to claim 5, characterized in that, The packing layer (12) and the baffle plate (14) are arranged laterally, and the packing layer (12) and the baffle plate (14) extend along the length of the connecting channel.

8. The underground cooling tower structure for subway stations according to claim 1, characterized in that, The dimensions of the connecting channel are adapted to the cooling tower (1).

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