A portable dual-cavity shared jet ventilation unit

Abstract

This invention relates to the field of ventilation and smoke extraction technology for subway tunnels, specifically disclosing a movable dual-tunnel shared jet ventilation unit, including 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. The housing contains a fan section, ductwork, an electric slide rail, and supply / exhaust vents. Both the left and right tunnels are equipped with segmented ductwork and supply / exhaust vents located on the front and rear sides. The fan section includes a bidirectional jet fan and a fan housing, mounted on the electric slide rail, which is arranged laterally along the tunnel. The fan section can be moved by the electric slide rail to the ductwork segment in either the left or right tunnel to connect, and then supply or exhaust air through the supply / exhaust vents on the front and rear sides. This invention, by mounting the fan section on the electric slide rail, allows for flexible movement between the left and right tunnels, achieving ventilation and smoke extraction for dual-tunnel systems with a single device.

Description

Technical Field

[0001] This application relates to the field of ventilation and smoke extraction technology for subway tunnels, specifically to a portable dual-tunnel shared jet ventilation unit. Background Technology

[0002] In subway tunnel ventilation and smoke extraction systems, a common approach is to use independently installed dual-tunnel jet fans. This system achieves ventilation and smoke extraction by installing independent jet fans in each tunnel. These fans are installed on the tunnel ceiling or sidewalls and guide air to various areas of the tunnel through ducts, ensuring air circulation and smoke exhaust. 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 traditional ventilation system has some significant shortcomings in practical applications. Although the traditional independently installed dual-hole jet fan scheme can effectively achieve ventilation and smoke extraction in subway tunnels, it has many problems in terms of equipment quantity, power distribution, civil engineering costs, and equipment investment. First, the need to install an independent fan system in each tunnel results in a large number of devices, increasing procurement and installation costs. Second, the independent fan system requires high power distribution, increasing energy consumption and operating costs. In addition, the large number of devices and complex installation requirements increase civil engineering costs and equipment investment, further driving up the overall construction cost. These problems not only result in huge initial investment but also increase the pressure on the long-term operation and maintenance of subway tunnels. Summary of the Invention

[0004] In view of the above-mentioned defects of existing technical solutions, the present invention proposes a mobile dual-hole shared jet ventilation unit, which aims to overcome the shortcomings of existing technologies through structural innovation and energy-efficient design, optimize the ventilation and smoke exhaust system of subway tunnels, reduce the number of equipment, reduce power distribution, save civil engineering costs and equipment investment, and at the same time have efficient ventilation and smoke exhaust capabilities.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: A movable dual-tunnel shared jet ventilation unit 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. The housing contains a fan section, a duct, an electric slide rail, and air supply / exhaust outlets. Both the left and right tunnels are equipped with segmented ducts and air supply / exhaust outlets located on the front and rear sides. The fan section includes a bidirectional jet fan and a fan housing. The fan section is mounted on the electric slide rail, which is arranged laterally along the tunnel. The fan section can be moved under the drive of the electric slide rail to the duct segment position in the left or right tunnel to complete the connection, and air supply or exhaust is achieved through the air supply / exhaust outlets on the front and rear sides.

[0006] Preferably, a high-efficiency silencer is installed on the duct, and the high-efficiency silencer is located on the duct near the fan section.

[0007] Preferably, the duct is provided with a retractable duct at the connection point between the duct and the fan section. The retractable duct includes a flexible sealing cloth and a connecting ring. One end of the flexible sealing cloth is fixed to the inner wall of the duct opening, and the other end is fixed to the connecting ring.

[0008] Preferably, the connecting ring is made of iron, and a first magnet is fixedly installed at the pipe opening where the air duct connects with the fan section. The connecting ring is attracted to the pipe opening of the air duct by the first magnet when the fan section has not moved to the connection position.

[0009] Preferably, the first magnet is a permanent magnet.

[0010] Preferably, the inlet of the fan section is provided with a second magnet, which is an electromagnet. When the fan section moves to the docking position, the second magnet is energized and generates a magnetic attraction force, which attracts the connecting ring and drives the flexible sealing cloth to complete the docking with the fan section.

[0011] Preferably, the pipe opening of the fan section is also provided with a circular groove, and the connecting ring is fixed in the circular groove during docking to prevent radial movement.

[0012] Preferably, when the fan section needs to be moved, the second magnet is de-energized, and the connecting ring is attracted to the duct opening again by the attraction of the first magnet.

[0013] Preferably, the control cabinet is located on the lower side of the partition wall in the tunnel, the electric slide rail is electrically connected to the control cabinet, and the control cabinet is used to control the movement of the fan section.

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

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

[0016] The movable dual-tunnel shared jet ventilation unit of this invention, by mounting the fan section on an electric sliding rail, can flexibly move between the left and right tunnels, realizing the ventilation and smoke extraction function of a single device for dual-tunnel construction. By longitudinally arranging multiple modules of this device in the tunnel, a series ventilation and smoke extraction system can be formed, further improving the ventilation and smoke extraction effect. Compared to the traditional independently installed dual-tunnel jet fan scheme, this invention can reduce the number of devices by half. This not only reduces the number of devices to be purchased but also simplifies the workload of installation and maintenance. Due to the reduction in the number of devices, the required power distribution is also reduced accordingly, reducing not only the initial investment in power distribution equipment but also the long-term energy consumption and operating costs. By reducing the number of devices and optimizing the device layout, significant savings are made in civil engineering costs and equipment investment, which can substantially reduce construction costs for large-scale subway tunnel projects. Due to the reduction in the number of devices and energy consumption, this invention can significantly reduce the long-term operation and maintenance costs of subway tunnels, bringing tangible economic benefits to subway operating companies. Furthermore, by designing components such as a retractable duct, a first magnet, and a second magnet, this invention enables convenient disassembly and connection between the fan section and the duct. The retractable duct provides space for the movement of the duct section, and the magnetic attraction makes disassembly and connection between the fan section and the duct very convenient. This not only improves operational efficiency but also ensures the stability and sealing of the connection, thereby guaranteeing the efficient operation of the system. Attached Figure Description

[0017] Figure 1 This is an installation diagram of the portable dual-hole shared jet ventilation unit according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the ventilation supply and exhaust system for the left tunnel of the present invention using a portable dual-tunnel shared jet ventilation unit.

[0019] Figure 3 This is a schematic diagram of the ventilation supply and exhaust system for the right tunnel of the present invention, using a portable dual-tunnel shared jet ventilation unit.

[0020] Figure 4 This is a schematic diagram showing the connection between the duct and the fan section of the movable dual-hole shared jet ventilation unit according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the fan section inlet structure of the movable dual-hole shared jet ventilation unit according to an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1-House; 2-Control cabinet; 3-Fan section; 4-Air duct; 5-Electric slide rail; 6-Supply / exhaust air outlet; 7-Bidirectional jet fan; 8-Fan housing; 9-High-efficiency silencer; 10-Extendable air duct; 11-Flexible sealing cloth; 12-Connecting ring; 13-First magnet; 14-Second magnet; 15-Circular groove; 16-Intermediate partition wall; 17-Steel ladder. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] Please see Figure 1-3 This embodiment provides a portable dual-tunnel shared jet ventilation unit, 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, which can conveniently cover the ventilation needs of both tunnels. The housing 1 is equipped with a fan section 3, air ducts 4, electric slide rails 5, and air supply / exhaust outlets 6. Both the left and right tunnels are equipped with segmented air ducts 4 and air supply / exhaust outlets 6 located on the front and rear sides, respectively, precisely corresponding to the dual tunnels. The fan section 3 includes a bidirectional jet fan 7 and a fan housing 8. The bidirectional jet fan 7 can change the air direction as needed to realize air supply or exhaust in the tunnels. The fan section 3 is installed on the electric slide rail 5, which is arranged laterally along the tunnel. This arrangement allows the fan section 3 to move flexibly along the electric slide rail 5 inside the tunnel. Driven by the electric slide rail 5, the fan section 3 can move to the section position of the air duct 4 in the left or right tunnel to complete the connection. Air is supplied or exhausted through the air supply / exhaust ports 6 on the front and rear sides. This design allows the fan to be moved to supply or exhaust air to the left or right tunnel as needed.

[0026] By switching the position of fan section 3, ventilation and smoke extraction can be achieved in one tunnel while the other tunnel is closed. This design ensures focused and efficient ventilation and smoke extraction. When fan section 3 moves to the left tunnel, the fan will ventilate and extract smoke from the left tunnel, while the right tunnel is closed, concentrating resources to improve efficiency. Conversely, when fan section 3 moves to the right tunnel, it will ventilate and extract smoke from the right tunnel, while the left tunnel is closed. Furthermore, by longitudinally arranging multiple modules of this equipment, a series ventilation and smoke extraction system can be formed, further enhancing the overall ventilation and smoke extraction effect. Compared to traditional solutions, this invention reduces the number of devices by half. By sharing fan section 3 and other core components, power consumption is significantly reduced, thereby substantially saving on civil engineering costs, equipment investment, and operating costs.

[0027] Furthermore, a high-efficiency silencer 9 is installed on the duct 4. The high-efficiency silencer 9 is used to reduce the noise generated by the fan during operation and improve the environmental quality inside the tunnel. The high-efficiency silencer 9 is located on the duct 4 near the fan section 3. This arrangement allows the silencer 9 to more effectively absorb and attenuate the noise generated by the fan section 3, thereby ensuring that the ventilation system operates efficiently while reducing noise pollution to the surrounding environment.

[0028] Please see Figure 2-5 Furthermore, a retractable duct 10 is provided at the pipe opening where the duct 4 connects to the fan section 3. The retractable duct 10 provides a gap between the fan section 3 and the duct 4, facilitating the movement of the fan section 3 on the electric slide rail 5 without interfering with the duct 4. The retractable duct 10 includes a flexible sealing cloth 11 and a connecting ring 12. The flexible sealing cloth 11 has good elasticity and sealing performance, with one end fixed to the inner wall of the duct opening of the duct 4 and the other end fixed to the connecting ring 12 to ensure a tight seal during connection. The connecting ring 12 is made of iron, and a first magnet 13 is fixedly installed at the pipe opening where the duct 4 connects to the fan section 3. The first magnet 13 is a permanent magnet to ensure that the connecting ring 12 is stably fixed when the fan section 3 is not in the connection position. When the fan section 3 is not moved to the connection position, the connecting ring 12 is attracted to the duct opening of the duct 4 by the first magnet 13, preventing the connecting ring 12 from falling off or becoming misaligned due to gravity or other reasons.

[0029] When the fan section 3 moves to the docking position, the second magnet 14, which is an electromagnet, is installed at the pipe opening of the fan section 3. When energized, the second magnet 14 generates a strong magnetic force, greater than that of the first magnet 13. This attracts the connecting ring 12 and drives the flexible sealing cloth 11 to dock with the fan section 3, ensuring a stable and well-sealed connection between the fan section 3 and the duct 4. The pipe opening of the fan section 3 also has a circular groove 15. During docking, the connecting ring 12 is fixed in the circular groove 15 to prevent radial movement and ensure connection stability.

[0030] When the fan section 3 needs to be moved, the second magnet 14 is de-energized, the magnetic attraction disappears, and the connecting ring 12 is once again attracted to the opening of the duct 4 by the attraction of the first magnet 13, thus achieving smooth separation between the fan section 3 and the duct 4. This design not only improves the efficiency of disassembly and connection between the fan section 3 and the duct 4, but also ensures the stability and reliability of the system under different operating conditions.

[0031] Please see Figure 1 The control cabinet 2 is located below the tunnel partition wall 16, a layout that facilitates operation and maintenance by staff. The electric slide rail 5 is electrically connected to the control cabinet 2. Through this connection, the control cabinet 2 can precisely control the movement of the fan section 3 on the slide rail, ensuring that the fan section 3 can move flexibly between the left and right tunnel lines as needed. Specifically, the electric slide rail 5 drives the fan section 3 to move on the slide rail via a built-in motor and sliding mechanism. The motor provides power, driving the sliding mechanism along the slide rail, allowing the fan section 3 to switch positions between the left and right tunnel lines. The slide rail design ensures smooth movement and precise positioning of the fan section. The control cabinet 2 monitors and adjusts the position of the fan section in real time via electrical connection to meet the ventilation needs of different areas within the tunnel, achieving precise air supply or exhaust for either the left or right tunnel line. The electric slide rail not only improves the flexibility of the equipment but also reduces the workload and errors of manual operation. A steel ladder 17 is installed on the partition wall 16, providing maintenance personnel with a convenient access route for inspection and maintenance.

[0032] In summary, this invention provides a movable dual-tunnel shared jet ventilation unit. By mounting the fan section 3 on an electric slide rail 5, it can flexibly move between the left and right tunnels, achieving efficient ventilation and smoke extraction for both tunnels with a single device. By switching the position of the fan section, focused ventilation and smoke extraction can be achieved for one tunnel while the other is closed, ensuring efficient system operation. By longitudinally arranging multiple modules of this device, a series ventilation and smoke extraction system can be formed, further improving the overall ventilation and smoke extraction effect. Compared to the traditional solution of independently setting dual-tunnel jet fans, 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. Furthermore, this invention incorporates components such as a retractable duct 10, a first magnet 13, a second magnet 14, and a connecting ring 12, enabling convenient disassembly and connection between the fan section and the duct, ensuring system stability and sealing, and improving operational efficiency. Overall, this invention significantly improves the performance of subway tunnel ventilation and smoke extraction systems through structural innovation and energy-efficient design, resulting in significant economic and social benefits. It provides a more economical and efficient solution for the long-term operation and maintenance of subway tunnels. The application of this invention also promotes the advancement of ventilation and smoke extraction technology, making a positive contribution to technological innovation and development in the field of subway tunnel ventilation and smoke extraction.

[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 portable dual-cavity shared jet ventilation unit, characterized in that, The system includes 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. The housing (1) is equipped with a fan section (3), a duct (4), an electric slide rail (5), and an air supply / exhaust outlet (6). Both the left and right tunnels are equipped with segmented ducts (4) and air supply / exhaust outlets (6) located on the front and rear sides. The fan section (3) includes a bidirectional jet fan (7) and a fan housing (8). The fan section (3) is installed on the electric slide rail (5). The electric slide rail (5) is arranged laterally along the tunnel. The fan section (3) can be moved to the segmented position of the duct (4) in the left or right tunnel under the drive of the electric slide rail (5) to complete the docking. Air supply or exhaust is achieved through the air supply / exhaust outlets (6) on the front and rear sides.

2. The portable dual-cavity shared jet ventilation unit according to claim 1, characterized in that, A high-efficiency silencer (9) is installed on the duct (4), and the high-efficiency silencer (9) is located on the duct (4) near the fan section (3).

3. The portable dual-cavity shared jet ventilation unit according to claim 1, characterized in that, The duct (4) is connected to the fan section (3) with a retractable duct (10). The retractable duct (10) includes a flexible sealing cloth (11) and a connecting ring (12). One end of the flexible sealing cloth (11) is fixed to the inner wall of the duct (4) opening, and the other end is fixed to the connecting ring (12).

4. The portable dual-cavity shared jet ventilation unit according to claim 3, characterized in that, The connecting ring (12) is made of iron. A first magnet (13) is fixedly installed at the pipe opening where the air duct (4) connects with the fan section (3). The connecting ring (12) is attracted to the pipe opening of the air duct (4) by the first magnet (13) when the fan section (3) has not moved to the docking position.

5. The portable dual-cavity shared jet ventilation unit according to claim 4, characterized in that, The first magnet (13) is a permanent magnet.

6. The portable dual-cavity shared jet ventilation unit according to claim 5, characterized in that, The fan section (3) is equipped with a second magnet (14) at its port. The second magnet (14) is an electromagnet. When the fan section (3) moves to the docking position, the second magnet (14) is energized and generates magnetic attraction, which attracts the connecting ring (12) and drives the flexible sealing cloth (11) to dock with the fan section (3).

7. The portable dual-cavity shared jet ventilation unit according to claim 6, characterized in that, The pipe opening of the fan section (3) is also provided with a circular groove (15), and the connecting ring (12) is fixed in the circular groove (15) during docking to prevent radial movement.

8. The portable dual-cavity shared jet ventilation unit according to claim 6, characterized in that, When the fan section (3) needs to be moved, the second magnet (14) is de-energized, and the connecting ring (12) is attracted to the opening of the air duct (4) again by the attraction of the first magnet (13).

9. The portable dual-cavity shared jet ventilation unit according to claim 1, characterized in that, The control cabinet (2) is located on the lower side of the partition wall (16) in the tunnel. The electric slide rail (5) is electrically connected to the control cabinet (2). The control cabinet (2) is used to control the movement of the fan section (3).

10. The portable dual-cavity shared jet ventilation unit according to claim 9, characterized in that, A steel ladder (17) is installed on the central partition wall (16).

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