A dual-hole shared jet ventilation unit

Abstract

This invention discloses a dual-tunnel shared jet ventilation unit, comprising 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 sliding 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. The fan housing has detachable purification units installed at its duct openings. The fan section is mounted on an electric sliding rail arranged laterally along the tunnel. Driven by the electric sliding rail, the fan section can move to the duct segment position in either the left or right tunnel to connect, and supply or exhaust air is provided through the supply / exhaust vents on the front and rear sides. This invention, by mounting the fan section on an electric sliding rail, allows for flexible movement between the left and right tunnels, achieving ventilation and smoke extraction for dual-tunnel setups 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 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. 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. In addition, the air purification design in subway tunnel ventilation and smoke extraction systems is relatively limited, failing to adequately meet the air quality requirements. Summary of the Invention

[0004] In view of the above-mentioned defects of existing technical solutions, the present invention proposes a 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 and air purification capabilities.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A 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, air ducts, an electric slide rail, and supply / exhaust vents. Both the left and right tunnels are equipped with segmented air ducts and supply / exhaust vents located on the front and rear sides. The fan section includes a bidirectional jet fan and a fan housing. The duct opening of the fan housing is equipped with a pluggable and detachable purification unit. The diameter of the purification unit is the same as the inner diameter of the 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 by the electric slide rail to the air duct segment position in the left or right tunnel to complete the connection, and air supply or exhaust is achieved through the supply / exhaust vents on the front and rear sides.

[0007] Preferably, the purification unit includes a pin, and the inner wall of the fan housing is provided with a pin hole that mates with the pin. The pin is located in the pin groove of the purification unit and is connected to the bottom of the pin groove by a spring. The pin is inserted into the pin hole to achieve docking and positioning of the purification unit and the fan housing.

[0008] Preferably, the pin groove includes guide grooves symmetrically arranged on both sides, the extension direction of the guide grooves being consistent with the extension direction of the pin groove, and guide posts symmetrically arranged on both sides of the pin post, the guide posts being inserted into the guide grooves and moving up and down along the guide grooves as the pin post moves.

[0009] Preferably, the fan housing is equipped with an electromagnet at the pipe opening. When the purification unit is installed in the docking position, the electromagnet is energized and generates a magnetic attraction force, which attracts the pin post to be inserted into the pin hole to complete the docking.

[0010] Preferably, when the purification unit needs to be removed from the pipe opening of the fan housing, 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 duct, and the high-efficiency silencer is located on the duct near the fan section.

[0012] Preferably, the fan section and the electric slide rail are equipped with contact switches. When the fan section moves to a preset position on the electric slide rail, the contact switches are turned on, and the bidirectional jet fan starts.

[0013] Preferably, the purification unit and the fan housing are respectively provided with alignment marks, and the purification unit is provided with a handle for easy installation and operation.

[0014] 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.

[0015] Preferably, a steel ladder is provided on the central partition wall.

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

[0017] The 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 both tunnels. By longitudinally arranging multiple such device modules in the tunnel, a series ventilation and smoke extraction system can be formed, further improving the ventilation and smoke extraction effect. Compared with the traditional independent 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, which not only reduces the initial investment in power distribution equipment but also reduces 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 greatly reduce construction costs for large-scale subway tunnel projects. Furthermore, the purification unit of this invention adopts a detachable design, which facilitates replacement and maintenance. The design of the electromagnet, guide groove and guide column further improves the flexibility and operability of the system, ensuring that the purification unit can be quickly replaced when needed, thus guaranteeing the normal operation and maintenance efficiency of the system. Due to the reduction in the number of devices and the reduction in 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. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation of the dual-hole shared jet ventilation unit according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the air supply and exhaust system for the left tunnel of the dual-tunnel shared jet ventilation unit according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the movement of the fan section in the dual-hole shared jet ventilation unit according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the air supply and exhaust system for the right tunnel of the dual-tunnel shared jet ventilation unit according to an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the installation of the fan housing and purification unit of the dual-hole shared jet ventilation unit according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the fan section inlet structure of the dual-hole shared jet ventilation unit according to an embodiment of the present invention.

[0024] Figure 7 for Figure 6 A magnified view of part A.

[0025] Explanation of reference numerals in the attached drawings: 1-Housing; 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-Purification unit; 91-Pin post; 92-Pin hole; 93-Pin groove; 94-Spring; 95-Guide groove; 96-Guide column; 10-Electromagnet; 11-High-efficiency silencer; 12-Tunnel partition wall; 13-Steel ladder. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] Please see Figure 1-7 This embodiment provides a 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 supply / exhaust air outlets 6. Both the left and right tunnels are equipped with segmented air ducts 4 and supply / exhaust air 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 airflow direction as needed to achieve air supply or exhaust in the tunnels. The fan housing 8 has a plug-in detachable purification unit 9 at its duct opening. The diameter of the purification unit 9 is the same as the inner diameter of the fan housing 8, ensuring that the purification unit 9 can fit tightly with the fan housing 8 for effective air purification. 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.

[0029] 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, it ventilates and extracts smoke from the left tunnel while closing the right tunnel, concentrating resources to improve efficiency. Conversely, when fan section 3 moves to the right tunnel, it ventilates and extracts smoke from the right tunnel while closing the left tunnel. Furthermore, by longitudinally arranging multiple modules, 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, resulting in substantial savings in construction costs, equipment investment, and operating costs. When fan section 3 is moved between the left and right tunnels, it is in a non-operating state, allowing for easy disassembly and replacement of the purification unit.

[0030] Please see Figure 5-7 Furthermore, in this embodiment, the purification unit 9 includes a pin 91. A pin hole 92 is provided on the inner wall of the fan housing 8 to mate with the pin 91. The pin 91 is located in the pin groove 93 of the purification unit 9 and is connected to the bottom of the pin groove 93 by a spring 94. The pin 91 is inserted into the pin hole 92 to achieve docking and positioning between the purification unit 9 and the fan housing 8. To ensure accurate movement of the pin 91, the pin groove 93 includes guide grooves 95 symmetrically arranged on both sides. The extension direction of the guide grooves 95 is consistent with the extension direction of the pin groove 93. Guide posts 96 are symmetrically arranged on both sides of the pin 91. The guide posts 96 are inserted into the guide grooves 95, allowing the pin 91 to move up and down along the extension direction of the guide grooves 95. The guide posts 96 can guide the movement of the pin 91 and effectively transfer the force on the pin 91 to the main body structure of the purification unit 9, further increasing the docking strength.

[0031] To control the movement of the pin 91, the pin 91 should be made of iron or other magnetic materials with good magnetic permeability. An electromagnet 10 is installed at the port of the fan housing 8. When the purification unit 9 is installed in the docking position, the electromagnet 10 is energized, generating a magnetic force that attracts the pin 91 to insert into the pin hole 92, completing the docking. This ensures that the purification unit 9 is firmly fixed to the fan housing 8 and can be easily disassembled when needed. When the purification unit 9 needs to be removed from the port of the fan housing 8, the electromagnet 10 is de-energized, and the pin 91 is retracted into the pin slot 93 under the tension of the spring 94. This simplifies the installation and disassembly process of the purification unit 9, improves system maintenance efficiency, and ensures the operability and reliability of the purification unit 9. The electromagnet 10 can be installed on the outside of the port of the fan housing 8 for convenient circuit connection and maintenance.

[0032] Furthermore, a high-efficiency silencer 11 is installed on the duct 4. The high-efficiency silencer 11 is used to reduce the noise generated by the fan during operation and improve the environmental quality inside the tunnel. The high-efficiency silencer 11 is located on the duct 4 near the fan section 3. This arrangement allows the high-efficiency silencer 11 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.

[0033] In this embodiment, contact switches can be installed on the fan section 3 and the electric slide rail 5. When the fan section 3 moves to the preset position of the electric slide rail 5, the contact switches are activated, and the bidirectional jet fan 7 starts. The design of the contact switches ensures that the fan section 3 starts automatically when in the correct position, avoiding potential safety hazards caused by misoperation. Alignment marks are provided on the purification unit 9 and the fan housing 8 respectively. These marks help operators quickly align the purification unit 9 and the fan housing 8 during installation, ensuring the accuracy and tightness of the installation. In addition, the purification unit 9 is provided with a handle for easy installation and operation. This design improves the convenience of installation and disassembly, allowing operators to perform maintenance and replacement operations more easily.

[0034] Please see Figure 1 The control cabinet 2 is located below the tunnel partition wall 12, 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 uses a built-in motor and sliding mechanism to move the fan section 3 on the slide rail. 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 13 is installed on the tunnel partition wall 12, providing maintenance personnel with a convenient access route for inspection and maintenance.

[0035] In summary, this invention provides a dual-tunnel shared jet ventilation unit. By mounting the fan section 3 on an electric sliding 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. The purification unit 9 adopts a detachable design for easy replacement and maintenance, ensuring efficient system operation. Overall, this invention, through structural innovation and energy-efficient design, significantly improves the performance of subway tunnel ventilation and smoke extraction systems, offering 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.

[0036] 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 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) contains 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 housing (8) has a duct... The port is equipped with a pluggable and detachable purification unit (9). The diameter of the purification unit (9) is the same as the inner diameter of the 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 section position of the air duct (4) of 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 ports (6) on the front and rear sides.

2. The dual-hole shared jet ventilation unit according to claim 1, characterized in that, The purification unit (9) includes a pin (91). The inner wall of the fan housing (8) is provided with a pin hole (92) that mates with the pin (91). The pin (91) is located in the pin groove (93) of the purification unit (9) and is connected to the bottom of the pin groove (93) by a spring (94). The pin (91) is inserted into the pin hole (92) to achieve docking and positioning of the purification unit (9) and the fan housing (8).

3. The dual-hole shared jet ventilation unit according to claim 2, characterized in that, The pin groove (93) includes guide grooves (95) symmetrically arranged on both sides. The extension direction of the guide grooves (95) is consistent with the extension direction of the pin groove (93). Guide posts (96) are symmetrically arranged on both sides of the pin post (91). The guide posts (96) are inserted into the guide grooves (95) and move up and down along the guide grooves (95) as the pin post (91) moves.

4. The dual-hole shared jet ventilation unit according to claim 3, characterized in that, The fan housing (8) is equipped with an electromagnet (10). When the purification unit (9) is installed in the docking position, the electromagnet (10) generates magnetic attraction after being energized, attracting the pin (91) to be inserted into the pin hole (92) to complete the docking.

5. The dual-hole shared jet ventilation unit according to claim 4, characterized in that, When the purification unit (9) needs to be removed from the port of the fan housing (8), the electromagnet (10) is de-energized, and the pin (91) is stored in the pin slot (93) under the pulling force of the spring (94).

6. The dual-hole shared jet ventilation unit according to any one of claims 1-5, characterized in that, A high-efficiency silencer (11) is installed on the duct (4), and the high-efficiency silencer (11) is located on the duct (4) near the fan section (3).

7. The dual-hole shared jet ventilation unit according to claim 6, characterized in that, The fan section (3) and the electric slide rail (5) are equipped with contact switches. When the fan section (3) moves to the preset position of the electric slide rail (5), the contact switches are turned on and the bidirectional jet fan (7) starts.

8. The dual-hole shared jet ventilation unit according to claim 6, characterized in that, The purification unit (9) and the fan housing (8) are respectively provided with alignment marks, and the purification unit (9) is provided with a handle for easy installation and operation.

9. The dual-hole shared jet ventilation unit according to claim 8, characterized in that, The control cabinet (2) is located on the lower side of the partition wall (12) 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 dual-hole shared jet ventilation unit according to claim 9, characterized in that, A steel ladder (13) is installed on the partition wall (12) in the tunnel.

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