Adaptive double-hole tunnel shared ventilation and smoke exhaust equipment

Abstract

The present application relates to the technical field of metro tunnel ventilation and smoke exhaust, and particularly discloses a self-adaptive double-hole tunnel shared ventilation and smoke exhaust equipment, which comprises a shell and a control cabinet, the left side of the shell is located in a left-line tunnel, the right side is located in a right-line tunnel, a bidirectional fan is arranged in the center of the shell, the left-line tunnel and the right-line tunnel are both provided with air supply / exhaust openings located at the front and rear ends of the shell, the two ends of the bidirectional fan are both provided with circular air pipes, the circular air pipes are connected with the air supply / exhaust openings of the left-line tunnel and the right-line tunnel through Y-shaped air pipes, the air supply / exhaust openings at the front end share a front sliding baffle which can slide along a front rail, and the air supply / exhaust openings at the rear end share a rear sliding baffle which can slide along a rear rail. By sharing the ventilation and smoke exhaust equipment, the number of equipment and investment can be greatly reduced, the operation cost can be lowered, the efficiency of the ventilation and smoke exhaust system can be improved, and reliable technical support can be provided for long-term operation and maintenance of the metro tunnel.

Description

Technical Field

[0001] This application relates to the field of ventilation and smoke extraction technology for subway tunnels, specifically to an adaptive dual-tunnel shared ventilation and smoke extraction device. Background Technology

[0002] In subway tunnel ventilation and smoke extraction systems, a common approach is to use independently installed dual-port jet fans. This system typically involves placing a jet fan at each tunnel entrance, which operates independently to circulate air and extract smoke within the tunnel. These fans are installed on the tunnel ceiling or sidewalls, guiding air through ducts to various areas of the tunnel to ensure airflow and smoke removal. The system was originally designed to meet the complex ventilation needs of subway tunnels and ensure the safety of passengers and staff.

[0003] However, this approach has several significant drawbacks. First, the large number of devices leads to high power requirements. Since each tunnel opening needs its own independent jet fan, the power distribution design for the entire system is complex and costly. Second, the substantial civil engineering and equipment investment increases initial construction costs. Dedicated foundations and support structures are required for each fan, significantly increasing civil engineering expenditures. Furthermore, the independently configured dual-tunnel jet fan system consumes more energy during operation, increasing operating costs. The independent operation of each fan results in low overall energy efficiency, increasing power consumption and maintenance costs. These issues pose significant economic pressure and management challenges to the long-term operation and maintenance of subway tunnels. Frequent equipment inspections and replacements not only increase maintenance difficulty but may also affect the normal operation and safety of the tunnel. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes an adaptive dual-tunnel shared ventilation and smoke extraction system. This system, through innovative structural design and a highly efficient energy-saving solution, aims to solve the problems of large equipment quantity, high power consumption, high civil engineering and equipment investment, and high operating costs associated with traditional solutions. By sharing the ventilation and smoke extraction system, this invention not only significantly reduces the number of devices and investment, lowering operating costs, but also improves the efficiency of the ventilation and smoke extraction system, providing reliable technical support for the long-term operation and maintenance of subway tunnels.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: An adaptive dual-tunnel shared ventilation and smoke exhaust device includes a housing and a control cabinet. The left side of the housing is located in the left tunnel, and the right side is located in the right tunnel. A bidirectional fan is arranged at the center of the housing. Both the left and right tunnels are provided with air supply / exhaust outlets located at the front and rear ends of the housing. Both ends of the bidirectional fan are provided with circular air ducts. The circular air ducts are connected to the air supply / exhaust outlets of the left and right tunnels through Y-shaped air ducts. The front air supply / exhaust outlets share a front sliding baffle that can slide along the front track, and the rear air supply / exhaust outlets share a rear sliding baffle that can slide along the rear track.

[0006] Preferably, the front and rear tracks are arranged laterally along the tunnel, and the front and rear sliding baffles can slide to switch between supply and exhaust vents, supplying or exhausting air to one tunnel while closing the other tunnel.

[0007] Preferably, the upper and lower ends of the front sliding baffle and the rear sliding baffle are provided with guide posts, and the front track and the rear track both include upper and lower tracks, and the guide posts move in the tracks.

[0008] Preferably, the air supply / exhaust vent is provided with a pin hole, and the front sliding baffle and the rear sliding baffle are provided with pin grooves. A spring and a pin are provided in the pin grooves. The pin is inserted into the pin hole to achieve docking and positioning of the front sliding baffle and the rear sliding baffle with the air supply / exhaust vent.

[0009] Preferably, the air supply / exhaust vent is also equipped with an electromagnet. When the front or rear sliding baffle moves to the docking position, the electromagnet is energized and generates a magnetic attraction force, which attracts the pin to insert into the pin hole and complete the docking with the air supply / exhaust vent.

[0010] Preferably, when the current sliding baffle or the rear sliding baffle needs to be removed from the air supply / exhaust vent, the electromagnet is de-energized, and the pin is retracted into the pin slot under the tension of the spring.

[0011] Preferably, a high-efficiency silencer is installed on the circular duct, and the high-efficiency silencer is located on both sides of the bidirectional fan.

[0012] Preferably, the control cabinet is located on the lower side of the partition wall in the tunnel. The control cabinet includes a forward and reverse rotation control module for controlling the bidirectional fan, and a drive module for controlling the sliding of the front sliding baffle and the rear sliding baffle.

[0013] Preferably, the front sliding baffle and the rear sliding baffle move synchronously.

[0014] Preferably, a steel ladder is provided on the central partition wall.

[0015] The beneficial effects of this invention are as follows:

[0016] This invention, by longitudinally arranging multiple equipment modules, forms a series ventilation and smoke extraction system, further improving ventilation and smoke extraction efficiency. By sharing ventilation and smoke extraction equipment, the number of devices is significantly reduced, lowering investment costs for equipment procurement and installation. This innovative design avoids the need for independent fans at each tunnel entrance, thus reducing the overall system's power distribution requirements and civil engineering costs. The reversible operation of the bidirectional fan and the switching function of the sliding baffle allow the system to flexibly adjust airflow and direction according to actual needs during operation, thereby improving energy efficiency, reducing power consumption, and lowering operating costs. This invention uses pins to position and fix the sliding baffle and the supply / exhaust vents. The combination of the pins and electromagnets achieves precise docking and stable positioning of the sliding baffle and the supply / exhaust vents. This design enhances the system's operational convenience and safety, avoiding baffle misalignment and air leakage problems that may occur in traditional ventilation systems. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation of the adaptive dual-tunnel shared ventilation and smoke extraction equipment according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the adaptive dual-tunnel shared ventilation and smoke exhaust equipment for supplying and exhausting air to the left tunnel, according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the adaptive dual-tunnel shared ventilation and smoke exhaust equipment for supplying and exhausting air to the right tunnel in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram showing the positional relationship between the front sliding baffle and the air supply / exhaust vent of the adaptive dual-tunnel shared ventilation and smoke exhaust equipment according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram showing the connection between the front sliding baffle and the air supply / exhaust vent of the adaptive dual-tunnel shared ventilation and smoke exhaust equipment according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram showing the positional relationship between the front sliding baffle and the front track of the adaptive dual-tunnel shared ventilation and smoke exhaust equipment according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached drawings: 1-House; 2-Control cabinet; 3-Bidirectional fan; 4-Circular duct; 5-Supply / exhaust air outlet; 6-Y-type duct; 7-Front rail; 8-Front sliding baffle; 9-Rear rail; 10-Rear sliding baffle; 11-Guide column; 12-Pin hole; 13-Pin slot; 14-Spring; 15-Pin; 16-Electromagnet; 17-High-efficiency silencer; 18-Intermediate partition wall; 19-Steel ladder. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the present invention.

[0025] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0026] Please see Figure 1-6 This embodiment provides an adaptive dual-tunnel shared ventilation and smoke exhaust device, including a housing 1 and a control cabinet 2. The left side of the housing 1 is located in the left tunnel and the right side is located in the right tunnel. A bidirectional fan 3 is set in the center of the housing 1. Both the left and right tunnels are provided with air supply / exhaust outlets 5 at the front and rear ends of the housing 1. Both ends of the bidirectional fan 3 are provided with circular air ducts 4. The circular air ducts 4 are connected to the air supply / exhaust outlets 5 of the left and right tunnels through Y-shaped air ducts 6. The front air supply / exhaust outlets 5 share a front sliding baffle 8 that can slide along the front track 7, and the rear air supply / exhaust outlets 5 share a rear sliding baffle 10 that can slide along the rear track 9.

[0027] Specifically, the housing 1 serves as the main frame structure of the equipment, housing and supporting the bidirectional fan 3 and related components. The bidirectional fan 3 is installed at the center of the housing 1, switching the direction of airflow by rotating in both directions. A circular duct 4 connects to both ends of the bidirectional fan 3, responsible for delivering airflow. A Y-shaped duct 6 connects the circular duct 4 to the supply / exhaust vents 5 of the left and right tunnels, allowing airflow to switch between the two tunnels. A front sliding baffle 8 and a rear sliding baffle 10 are respectively installed on the front rail 7 and the rear rail 9, sliding along the rails to switch the opening and closing states of the supply / exhaust vents 5, ensuring that airflow circulates only within the designated tunnel.

[0028] The front track 7 and rear track 9 are arranged laterally along the tunnel, allowing the front sliding baffle 8 and rear sliding baffle 10 to move smoothly along the tunnel's lateral direction. The front sliding baffle 8 and rear sliding baffle 10 can slide to switch the supply / exhaust vents 5, supplying or exhausting air to one tunnel while closing the other. By sliding to switch the supply / exhaust vents 5, the front sliding baffle 8 and rear sliding baffle 10 achieve precise ventilation or smoke extraction for a single tunnel. When ventilation or smoke extraction is needed for the left tunnel, the front sliding baffle 8 and rear sliding baffle 10 slide to the corresponding position, opening the supply / exhaust vent 5 for the left tunnel while simultaneously closing the supply / exhaust vent 5 for the right tunnel, and vice versa. This design ensures efficient system operation while reducing energy consumption and improving ventilation and smoke extraction effects. In some special scenarios, the supply / exhaust vents 5 of the left tunnel and the right tunnel can work together. For example, if there is a lot of dust at the entrance of the right tunnel, it is not suitable to take in air. Air can be taken in through the entrance of the left tunnel and exhausted through the exit of the right tunnel. This configuration allows the system to flexibly adjust the ventilation mode according to the specific situation.

[0029] Guide posts 11 are provided at the upper and lower ends of the front sliding baffle 8 and the rear sliding baffle 10. The front rail 7 and the rear rail 9 both include upper and lower rails. The guide posts 11 move in the rails. The upper and lower rail structures of the front rail 7 and the rear rail 9 allow the guide posts 11 to slide freely in them, thereby achieving precise control of the front sliding baffle 8 and the rear sliding baffle 10.

[0030] The supply / exhaust vents are equipped with pin holes 12, and the front sliding baffle 8 and rear sliding baffle 10 are equipped with pin slots 13. Springs 14 and pins 15 are housed within the pin slots 13. The pin 15 is inserted into the pin hole 12 to achieve docking and positioning of the front sliding baffle 8 and rear sliding baffle 10 with the supply / exhaust vent 5. The design of the pin hole 12 allows for accurate insertion of the pin 15, achieving a secure docking. The pin slot 13 not only accommodates the pin 15 but also includes springs 14, which provide the necessary rebound force for the pin 15, enabling stable insertion and withdrawal of the pin hole 12. Multiple pins can be designed, evenly distributed along the circumferential contours of the front sliding baffle 8 and rear sliding baffle 10. This design increases the stability and reliability of the docking. An electromagnet 16 is also installed at the inlet of the air supply / exhaust vent. When the front sliding baffle 8 or the rear sliding baffle 10 moves to the docking position, the electromagnet 16 is energized and generates a magnetic force, attracting the pin 15 to insert into the pin hole 12 and dock with the air supply / exhaust vent 5. The magnetic force generated by the energized electromagnet 16 ensures that the pin 15 is firmly fixed in the pin hole 12, guaranteeing a secure docking between the baffle and the vent. When the front sliding baffle 8 or the rear sliding baffle 10 needs to be removed from the air supply / exhaust vent 5, the electromagnet 16 is de-energized, and the pin 15 is retracted into the pin slot 13 under the pulling force of the spring 14. After the electromagnet 16 is de-energized, the magnetic force disappears, and the pin 15 is pulled back into the pin slot 13 under the action of the spring 14, allowing the sliding baffle to be moved smoothly, completing the switching of the ventilation path. This design ensures the flexibility and safety of the system during operation.

[0031] A high-efficiency silencer 17 is installed on the circular duct 4. The silencer 17 is located on both sides of the bidirectional fan 3. By installing the high-efficiency silencer 17 on the circular duct 4, the noise generated during fan operation can be effectively reduced, improving the equipment's quietness. The control cabinet 2 is located below the tunnel partition wall 18. The control cabinet 2 includes a control module for controlling the forward and reverse rotation of the bidirectional fan 3, and a drive module for controlling the sliding of the front sliding baffle 8 and the rear sliding baffle 10. Through the control module in the control cabinet 2, the forward and reverse rotation of the bidirectional fan 3 can be switched, thereby controlling the airflow direction. Simultaneously, the drive module is responsible for the synchronous sliding of the front sliding baffle 8 and the rear sliding baffle 10, ensuring the efficient operation of the ventilation and smoke extraction system. A steel ladder 19 is installed on the partition wall 18. The steel ladder 19 facilitates equipment installation and maintenance, provides convenient access, and ensures that operators can safely perform equipment inspection and maintenance work.

[0032] In summary, the equipment of this invention is arranged longitudinally along the tunnel, with two air supply / exhaust outlets 5 at each end, precisely corresponding to the twin tunnels. The equipment contains a bidirectional fan 3, with circular ducts 4 and Y-shaped ducts 6 at both ends connecting the air supply / exhaust outlets 5 of the left and right tunnels. A front sliding baffle 8 and a rear sliding baffle 10 are installed at the air supply / exhaust outlets 5. By switching between the front and rear sliding baffles 8 and 10, ventilation and smoke extraction can be achieved for one tunnel while the other tunnel is closed, ensuring focused and efficient ventilation and smoke extraction. Multiple longitudinally arranged equipment modules form a series ventilation and smoke extraction system, further improving the ventilation and smoke extraction effect. Compared to traditional jet fan solutions, this invention reduces the number of devices by half and lowers power consumption, thereby significantly saving on civil engineering costs, equipment investment, and operating costs. Overall, this invention improves ventilation and smoke extraction efficiency while achieving energy conservation and emission reduction, significantly reducing the system's construction and operating costs. This provides an innovative, economical, and practical solution for ventilation and smoke extraction systems in subway tunnels, which not only promotes the advancement of ventilation and smoke extraction technology but also provides reliable technical support for the long-term operation and maintenance of subway tunnels.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Under the concept of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-adapting double-hole tunnel shared ventilation and smoke exhaust equipment, characterized in that, The utility model relates to a tunnel air supply and exhaust control device, including shell (1) and control cabinet (2), shell (1) left side is located left line tunnel, right side is located right line tunnel, shell (1) center is provided with two -way fan (3), left line tunnel and right line tunnel all are arranged in the front and rear both ends of shell (1) send / exhaust port (5), two -way fan (3) both ends are equipped with round air pipe (4), round air pipe (4) are connected left line tunnel and right line tunnel's send / exhaust port (5) through Y type air pipe (6), the send / exhaust port (5) of front end shares an front sliding baffle (8) that can slip along front track (7), the send / exhaust port (5) of rear end shares an rear sliding baffle (10) that can slip along rear track (9), front track (7) and rear track (9) are along tunnel transverse arrangement, front sliding baffle (8) and rear sliding baffle (10) can slide and switch send / exhaust port (5), the air supply or exhaust of one tunnel, another tunnel then enters the closed state, the upper end and the lower end of front sliding baffle (8) and rear sliding baffle (10) are provided with guide column (11), front track (7) and rear track (9) all include upper and lower tracks, guide column (11) moves in the track, the pipe mouth of send / exhaust port (5) is provided with bolt hole (12), and front sliding baffle (8) and rear sliding baffle (10) are provided with bolt slot (13), spring (14) and bolt (15) are provided in bolt slot (13), and bolt (15) inserts into bolt hole (12) to realize the butt joint positioning of front sliding baffle (8) and rear sliding baffle (10) with send / exhaust port (5), the pipe mouth of send / exhaust port (5) is also provided with electromagnet (16), when front sliding baffle (8) or rear sliding baffle (10) moves to butt joint position, electromagnet (16) generates magnetic attraction after electrification, and the bolt (15) inserted into bolt hole (12) is attracted to complete butt joint with send / exhaust port (5), when front sliding baffle (8) or rear sliding baffle (10) needs to remove from send / exhaust port (5), electromagnet (16) is deenergized, and the bolt (15) is housed in bolt slot (13) under the tension of spring (14).

2. The adaptive twin-bored tunnel common ventilation and smoke exhaust equipment according to claim 1, characterized in that, High -efficient silencer (17) is installed on the round air pipe (4), and the high -efficient silencer (17) is located at both sides of two -way fan (3).

3. The adaptive twin-tunnel shared ventilation and smoke extraction equipment according to claim 1, characterized in that, The control cabinet (2) is located under the tunnel partition wall (18), and the control cabinet (2) comprises a forward and reverse control module for controlling the two -way fan (3), and a driving module for controlling the front sliding baffle (8) and the rear sliding baffle (10) to slide.

4. The adaptive twin-bored tunnel common ventilation and smoke extraction equipment according to claim 3, characterized in that, The front sliding baffle (8) and the rear sliding baffle (10) move synchronously.

5. The adaptive twin-bored tunnel common ventilation and smoke extraction equipment according to claim 3, characterized in that, A steel ladder (19) is arranged on the partition wall (18).

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