An underground high-speed railway hub tunnel wind comprehensive utilization system

Abstract

The utility model provides a kind of underground high-speed railway hub tunnel wind comprehensive utilization system, it is related to station and supporting comprehensive development technology field in underground high-speed railway hub, it includes: underground comprehensive layer, ventilation hub and one-way air valve group.Underground comprehensive layer includes garage, station and tunnel rail area;Ventilation hub includes piston wind pavilion, piston wind well and external automobile ramp;Piston wind pavilion is set on ground, piston wind well upper end is communicated piston wind pavilion, piston wind well lower end is communicated tunnel rail area, piston wind well is provided with air pipe, and the both ends of air pipe are communicated with piston wind well and garage respectively;External automobile ramp is set in garage, and garage is communicated with outdoor through external automobile ramp;One-way air valve group is set in air pipe, and the gas flow direction in valve group is piston wind well towards garage.Utilizing this underground high-speed railway hub tunnel wind comprehensive utilization system, piston wind is effectively utilized, and the energy comprehensive utilization efficiency of overall system is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of integrated development technology of stations and supporting facilities in underground high-speed railway hubs, and more specifically, to a system for the comprehensive utilization of ventilation in underground high-speed railway hub tunnels. Background Technology

[0002] To improve urban space utilization efficiency, many cities tend to adopt underground railway station construction, integrating the underground stations with supporting facilities (including parking garages and other underground spaces) to form underground high-speed railway hub projects. The ventilation ducts of these underground stations often traverse the hub's supporting areas before finally connecting to the outside. However, due to the relative scarcity of such underground high-speed railway hub projects, current designs mostly follow the existing rule of separate station and hub designs. This means the station's ventilation system is directly connected to the outside, and the ventilation generated by trains directly exchanges with the outside air. Adjacent supporting facilities within the hub, such as parking garages, are equipped with independent mechanical ventilation systems according to relevant standards, introducing fresh air and expelling stale air through ventilation shafts that lead directly to the outside.

[0003] Unfortunately, this traditional ventilation system fails to fully meet the requirements of integrated design, lacking deep integration and innovative design between the station and its supporting parking garage. On the one hand, the piston wind generated by high-speed trains during operation comes from inside the tunnel, which possesses a certain amount of wind pressure and energy, and its temperature and air quality are superior to those in the supporting underground parking garage, but the current design does not effectively utilize this resource. On the other hand, due to the high vehicle turnover in the station's supporting parking garage, a large amount of polluting gas is generated, requiring the mechanical ventilation system of the garage to operate for extended periods, increasing energy consumption and contradicting the national advocacy of green and energy-saving development concepts.

[0004] Based on the shortcomings of the existing technologies, there is an urgent need for a comprehensive ventilation utilization system for underground high-speed railway hub tunnels. Utility Model Content

[0005] The purpose of this utility model is to provide a comprehensive ventilation utilization system for underground high-speed railway hub tunnels to improve the aforementioned problems. To achieve this purpose, the technical solution adopted by this utility model is as follows:

[0006] This application provides a comprehensive ventilation utilization system for underground high-speed railway hub tunnels, characterized by comprising: an underground integrated layer, a ventilation hub, and a one-way airflow valve group; the underground integrated layer includes a garage, a station, and a tunnel track area arranged sequentially from top to bottom; the ventilation hub includes a piston ventilation shaft, a piston ventilation well, and an external vehicle ramp; the piston ventilation shaft is located on the ground, the upper end of the piston ventilation well is connected to the piston ventilation shaft, the lower end of the piston ventilation well is connected to the tunnel track area, and a duct is installed on the piston ventilation well, with both ends of the duct connected to the piston ventilation well and the garage respectively; the external vehicle ramp is located in the garage, and the garage is connected to the outside through the external vehicle ramp; the one-way airflow valve group is located in the duct, and the gas flow direction in the one-way airflow valve group is from the piston ventilation well towards the garage.

[0007] Furthermore, the one-way airflow valve assembly includes a fire damper, a check valve, and an electric air valve; the fire damper is located near the connection point between the air duct and the piston air shaft, the electric air valve is located at the air outlet of the air duct, and the check valve is located between the fire damper and the electric air valve.

[0008] Furthermore, a CO sensor is installed on the top of the garage, and the CO sensor is electrically connected to the electric air valve.

[0009] Furthermore, the electric air valve is equipped with an electric interlocking device.

[0010] Furthermore, a silencer is installed inside the pipe of the piston ventilation shaft, and the silencer is located between the garage and the tunnel track area.

[0011] Furthermore, a protective net is installed in the air duct.

[0012] Furthermore, the piston ventilation shaft is a rectangular brick and tile structure.

[0013] Furthermore, the piston ventilation shaft and the external vehicle ramp are located opposite each other at both ends of the garage.

[0014] Furthermore, the one-way airflow valve assembly is installed at a height of 2m or greater on the side wall of the garage.

[0015] Furthermore, the garage is equipped with parking spaces, and the airflow between the parking spaces converges on the external vehicle ramp towards the outside.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model utilizes a comprehensive ventilation system for underground high-speed railway hub tunnels, effectively leveraging piston air to significantly improve the overall energy efficiency of the system; it reduces reliance on traditional garage mechanical ventilation systems, effectively lowering unnecessary electricity consumption; and by adding valve groups in the piston air shafts, it ensures unidirectional piston air flow, effectively improving ventilation efficiency and system stability.

[0018] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic cross-sectional view of the underground high-speed railway hub tunnel ventilation system.

[0021] Figure 2 This is a schematic diagram of the underground high-speed railway hub tunnel ventilation system.

[0022] The markings in the diagram are: 1. Piston ventilation shaft; 2. Piston ventilation well; 3. Silencer; 4. Air duct; 5. Fire damper; 6. Check valve; 7. Electric air valve; 8. Air outlet; 9. Tunnel track area; 10. Station; 11. Garage; 12. External vehicle ramp; 13. CO sensor; 14. Parking space. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] like Figure 1 As shown, this embodiment provides a comprehensive ventilation utilization system for underground high-speed railway hub tunnels. The system includes: an underground integrated layer, a ventilation hub, and a one-way airflow valve assembly. The underground integrated layer includes a parking garage 11, a station 10, and a tunnel track area 9 arranged sequentially from top to bottom. The ventilation hub includes a piston ventilation shaft 1, a piston ventilation well 2, and an external vehicle ramp 12. The piston ventilation shaft 1 is located on the ground. The upper end of the piston ventilation well 2 connects to the piston ventilation shaft 1, and the lower end of the piston ventilation well 2 connects to the tunnel track area 9. A duct 4 is installed on the piston ventilation well 2, with both ends connected to the piston ventilation well 2 and the parking garage 11, respectively. The parking garage 11 includes parking spaces 14 and an external vehicle ramp 12. The parking garage 11 is connected to the outside via the external vehicle ramp 12, ensuring that polluted gas can be smoothly discharged outdoors and maintaining the air quality in the parking garage 11 to meet operational requirements. The one-way airflow valve assembly is installed in the duct 4, and the gas flow direction in the one-way airflow valve assembly is from the piston ventilation well 2 towards the parking garage 11.

[0026] Preferably, the one-way airflow valve assembly includes a fire damper 5, a check valve 6, and an electric air valve 7. The fire damper 5 is located near the connection point between the air duct 4 and the piston shaft 2. The one-way airflow valve assembly is equipped with a local control system and a remote fire control system. The fire damper 5 also has a 70-degree fire-resistant melting function. In the event of a fire in the garage 11 or the tunnel track area 9, the fire control system responds, isolating the two areas and preventing the spread of fire. The check valve 6 is located between the fire damper 5 and the electric air valve 7. The check valve 6 has a one-way check function. When the valve assembly is open, as the train travels from the tunnel track area 9 towards the piston shaft 2, the piston air generated is positive pressure. Through the check valve 6, the piston air from the tunnel track area 9 enters the garage 11 and exhausts polluted air outdoors through the external vehicle ramp 12, achieving cooling and ventilation. When the train leaves the piston shaft 2, the piston air generated in the piston shaft 2 is negative pressure, and the check valve 6 prevents the relatively polluted air from the garage 11 from entering the tunnel track area 9. The check valve 6 ensures that the piston air can only be blown into the garage 11, effectively preventing air backflow and ensuring the safe operation of railway tunnels and underground stations.

[0027] Preferably, a CO sensor 13 is installed on the top of the garage 11, and the CO sensor 13 is electrically connected to the electric air valve 7. The CO sensor contains an electrochemical sensing element that converts changes in CO concentration into a weak electrical signal. The electric interlock device of the electric air valve 7 contains a relay that receives the electrical signal output by the CO sensor and controls the electric opening and closing of the electric air valve 7 through the action of its own contacts. The CO sensor 13 monitors the CO concentration in the garage 11 in real time. When the CO concentration exceeds the national allowable concentration (30 mg / m³), the sensor will detect the CO concentration. 3 When the CO concentration in garage 11 is low, the CO sensor 13 sends a signal, activating the electric air valve 7. This introduces piston air from the tunnel to provide natural ventilation for the garage, reducing the CO concentration. Conversely, when the CO concentration in garage 11 is low, the electric air valve 7 closes, and the tunnel piston air continues to exchange heat and moisture with the outside through its original pathway. Utilizing the characteristics of the tunnel piston air—bringing cool air in summer and maintaining warmth in winter—this significantly improves the temperature environment of garage 11 and enhances comfort. The electric air valve 7, combined with the monitoring of the CO sensor 13, enables intelligent management of the mechanical ventilation in garage 11, ensuring air quality while reducing power consumption, making the system more efficient and energy-saving, and meeting the requirements of green development.

[0028] Preferably, a silencer 3 is installed inside the pipe of the piston ventilation shaft 2. The silencer 3 is located between the garage 11 and the tunnel track area 9 to ensure that the noise level generated by the train in the tunnel track area 9 during train operation meets the national standard and effectively reduces noise pollution.

[0029] Preferably, a protective net is installed in the air duct 4 to prevent foreign objects from entering the air duct 4, avoid pipe blockage, and ensure the normal operation of the ventilation system.

[0030] Preferably, the piston ventilation shaft 1 is a rectangular brick and tile structure, which meets the ventilation requirements of the subway while taking into account structural practicality, environmental adaptability and cost economy.

[0031] Preferably, the piston ventilation shaft 2 is positioned opposite to the external vehicle ramp 12 at both ends of the garage 11 to ensure good air exchange between the garage 11 and the outside.

[0032] Preferably, the one-way airflow valve assembly is installed at a height of 2m or greater on the side wall of garage 11 to ensure personnel safety, ensure stable equipment operation, and avoid human error, accidental collisions, and interference from environmental factors.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A comprehensive ventilation utilization system for underground high-speed railway hub tunnels, characterized in that, include: The underground complex includes a parking garage (11), a station (10), and a tunnel track area (9) arranged from top to bottom. The ventilation hub includes a piston ventilation shaft (1), a piston ventilation well (2), and an external vehicle ramp (12). The piston ventilation shaft (1) is located on the ground. The upper end of the piston ventilation well (2) is connected to the piston ventilation shaft (1), and the lower end of the piston ventilation well (2) is connected to the tunnel track area (9). A duct (4) is installed on the piston ventilation well (2), and the two ends of the duct (4) are connected to the piston ventilation well (2) and the garage (11) respectively. The external vehicle ramp (12) is located in the garage (11), and the garage (11) is connected to the outside through the external vehicle ramp (12). A one-way airflow valve assembly is provided in the air duct (4), and the gas flow direction in the one-way airflow valve assembly is from the piston air shaft (2) toward the garage (11).

2. The underground high-speed railway hub tunnel ventilation comprehensive utilization system according to claim 1, characterized in that: The one-way airflow valve assembly includes a fire damper (5), a check valve (6), and an electric air valve (7); the fire damper (5) is located near the connection point between the air duct (4) and the piston air shaft (2), the electric air valve (7) is located at the air outlet of the air duct (4), and the check valve (6) is located between the fire damper (5) and the electric air valve (7).

3. The underground high-speed railway hub tunnel ventilation comprehensive utilization system according to claim 2, characterized in that: A CO sensor (13) is installed on the top of the garage (11), and the CO sensor (13) is electrically connected to the electric air valve (7).

4. The underground high-speed railway hub tunnel ventilation comprehensive utilization system according to claim 3, characterized in that: The electric air valve (7) is equipped with an electric interlock device.

5. The comprehensive ventilation utilization system for underground high-speed railway hub tunnels according to claim 1, characterized in that: A silencer (3) is installed inside the pipe of the piston ventilation shaft (2), and the silencer (3) is located between the garage (11) and the tunnel track area (9).

6. The underground high-speed railway hub tunnel ventilation comprehensive utilization system according to claim 1, characterized in that: A protective net is installed in the air duct (4).

7. The underground high-speed railway hub tunnel ventilation comprehensive utilization system according to claim 1, characterized in that: The piston ventilation shaft (1) is a rectangular brick and tile structure.

8. The comprehensive ventilation utilization system for underground high-speed railway hub tunnels according to claim 1, characterized in that: The piston ventilation shaft (2) is located opposite to the external vehicle ramp (12) at both ends of the garage (11).

9. The underground high-speed railway hub tunnel ventilation comprehensive utilization system according to claim 1, characterized in that: The one-way airflow valve assembly is installed at a height of 2m or greater on the side wall of the garage (11).

10. The underground high-speed railway hub tunnel ventilation comprehensive utilization system according to claim 1, characterized in that: The garage (11) is provided with parking spaces (14), and the airflow between the parking spaces (14) converges on the external vehicle ramp (12) towards the outside.

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