A new type of flat guide ventilation system for single-hole two-way traffic tunnel

Abstract

The present invention discloses a novel flat guide ventilation system for a single-hole, two-way traffic tunnel, comprising a fan room, an air supply port, an air exhaust port, an air damper, a connecting air supply duct, and a connecting air exhaust duct; the air damper is arranged in a through flat guide to separate the through flat guide into a flat guide air supply section and a flat guide exhaust section; the air exhaust port and the air supply port are arranged on the inner wall of the tunnel from left to right, and the air supply port is connected to the flat guide air supply section, and the air exhaust port is connected to the flat guide exhaust section; the ventilation fans, exhaust ports, connecting air exhaust duct, flat guide exhaust section, and the ventilation fans in the fan room are combined to form a first ventilation circuit to ventilate the front section of the tunnel; the ventilation fans in the fan room, the flat guide air supply section, the connecting air supply duct, the air supply port, and the ventilation fans in the tunnel are combined to form a second ventilation circuit to ventilate the rear section of the tunnel. The present invention is suitable for single-hole, two-way highway tunnels with through flat guides that require two-section ventilation, avoids ventilation wind speed deflection, fully utilizes natural wind, and improves ventilation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel ventilation, and in particular to a novel flat-guide ventilation system for a single-hole bidirectional driving tunnel. Background Art

[0002] During normal operation of highway tunnels, ventilation equipment needs to be turned on to ventilate the tunnel in order to dilute the concentration of pollutants emitted by cars in the tunnel and purify the air in the tunnel. For single-hole two-way traffic tunnels, when the design wind speed in the tunnel is less than or equal to 8m / s, full-jet longitudinal ventilation can be used, that is, ventilation is carried out using a jet fan installed on the top of the tunnel; when the design wind speed in the tunnel is greater than 8m / s, full-jet longitudinal ventilation is no longer applicable, and new ventilation shafts need to be built for segmented ventilation. For single-hole two-way traffic tunnels greater than 6,000m, flat guide pressure ventilation is currently used in China, that is, fresh air is pressed into the traffic tunnel from both ends of the through flat guide, and the polluted air is discharged from the two tunnel openings. Figure 1 shown. Figure 1 The wind gates 10 are provided at both ends of the through-level guide 2. Although this ventilation method utilizes the level guide to ventilate the tunnel in sections and reduce the design wind speed in the tunnel, the wind speed is turned 180 degrees during the ventilation process, which increases the difficulty of actual operation and fails to fully utilize the natural wind, resulting in poor ventilation effect. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that for a single-hole two-way traffic tunnel with a through flat guide that requires two-section ventilation, flat guide pressure-in ventilation is currently commonly used. Although this ventilation method utilizes the flat guide to ventilate the tunnel in sections and reduce the design wind speed in the tunnel, the wind speed is turned 180 degrees during the ventilation process, which increases the difficulty in actual operation, and cannot fully utilize natural wind, resulting in poor ventilation effect.

[0004] The purpose of the present invention is to provide a new type of flat guide ventilation system for single-hole two-way traffic tunnels. A new type of flat guide ventilation system is proposed for extra-long single-hole two-way highway tunnels (generally greater than 6000m) that require two-section ventilation and have a through flat guide. The present invention not only avoids the deflection of ventilation wind speed, but also makes full use of natural wind to achieve the purpose of improving ventilation efficiency.

[0005] The present invention is achieved through the following technical solutions:

[0006] A novel horizontal guide ventilation system for a single-hole bidirectional driving tunnel is suitable for single-hole bidirectional highway tunnels with a through horizontal guide. The system includes a fan room, air supply outlets, air exhaust outlets, air doors and connecting air ducts.

[0007] The air door is set in the through-level guide to separate the through-level guide into the level guide air supply section and the level guide air exhaust section; the exhaust port and the air supply port are set on the inner wall of the tunnel from left to right, and the air supply port is connected to the level guide air supply section, and the air exhaust port is connected to the level guide air exhaust section;

[0008] Ventilation fans are installed in both the tunnel and the fan room, and the connecting air ducts include connecting air supply ducts and connecting air exhaust ducts;

[0009] The tunnel's ventilation fans, exhaust vents, connecting exhaust ducts, flat guide exhaust sections and ventilation fans in the fan room form the first ventilation route to achieve ventilation of the front section of the tunnel; the ventilation fans in the fan room, flat guide air supply sections, connecting air supply ducts, air supply vents and ventilation fans in the tunnel form the second ventilation route to achieve ventilation of the rear section of the tunnel.

[0010] The present invention proposes a new type of flat guide ventilation system for extra-long single-hole bidirectional highway tunnels (generally greater than 6000m) that require two-section ventilation and have a through flat guide. By coordinating the arrangement of a fan room, air supply outlets, air exhaust outlets, dampers and connecting air ducts, and combining two ventilation lines to work simultaneously, the ventilation wind speed is avoided from turning, and natural wind is fully utilized to achieve the purpose of improving ventilation efficiency.

[0011] As a preferred embodiment, the first ventilation line and the second ventilation line of the present invention operate simultaneously to perform tunnel ventilation.

[0012] As a preferred embodiment, the ventilation fan installed in the tunnel of the present invention is a jet fan, and the ventilation fan installed in the fan room is an axial flow fan; both the axial flow fan and the jet fan can rotate in both directions.

[0013] As a preferred embodiment, the jet fan of the present invention is installed on the tunnel vault.

[0014] As a preferred embodiment, the fan room of the present invention includes two types: ground fan room and underground fan room. When the site conditions of the through-hole tunnel are suitable, the tunnel ground fan room can be set up; if the site is limited, the underground fan room can be set up. Specifically:

[0015] In the first way, the fan room of the present invention adopts a ground fan room, and the ground fan room and the tunnel are located on both sides of the through-level guide; and ground fan rooms are set at the openings at both ends of the through-level guide.

[0016] The connecting air supply duct includes a first connecting air supply duct and a second connecting air supply duct, and the connecting exhaust duct includes a first connecting exhaust duct and a second connecting exhaust duct; the second connecting air supply duct intersects with the second connecting exhaust duct and is not connected;

[0017] The fan room passing through the front end of the flat guide is connected to the flat guide air supply section via a first connecting air supply duct, and the flat guide air supply section is connected to the air supply outlet via a second connecting air supply duct; the flat guide exhaust section is connected to the fan room passing through the rear end of the flat guide via a first connecting exhaust duct, and the flat guide exhaust section is connected to the air outlet via a second connecting exhaust duct;

[0018] In the above technical solution, the jet fan in the tunnel supplies air, which is then exhausted through the exhaust port, the connecting exhaust duct, the horizontal guide exhaust section and the second connecting exhaust duct to the ground fan room at the rear end of the horizontal guide, thus achieving ventilation for the front section of the tunnel.

[0019] The air is supplied from the ground fan room at the front end of the horizontal guide, through the first connecting air supply duct, the horizontal guide air supply section and the second connecting air supply duct to the air supply outlet, and is exhausted by the jet fan in the tunnel to realize ventilation of the rear section of the tunnel.

[0020] The second method: the fan room of the present invention adopts an underground fan room, which is located between the through-guide and the tunnel;

[0021] The flat guide air supply section and the underground fan room, as well as the underground fan room and the air supply outlet are connected by connecting air ducts; the exhaust outlet and the underground fan room, as well as the underground fan room and the flat guide exhaust section are connected by connecting exhaust ducts.

[0022] As a preferred embodiment, the system further comprises an automatic control system, which comprises a test module and an intelligent control module;

[0023] The test module includes a natural wind test unit, a CO concentration test unit, and a smoke concentration test unit; the natural wind test unit is used to collect real-time natural wind speed and direction in the tunnel; the CO concentration test unit is used to collect real-time CO concentration in the tunnel; and the smoke concentration test unit is used to collect real-time smoke concentration in the tunnel;

[0024] The intelligent control module is used to intelligently control the opening and closing of the ventilation fan through the real-time data obtained by the test module.

[0025] As a preferred embodiment, the execution process of the intelligent control module includes:

[0026] If the real-time CO concentration or smoke concentration is detected to be above the standard, the intelligent control module will start the ventilation fan according to the real-time natural wind direction, so that the ventilation direction is the same as the natural wind direction, thus achieving the purpose of utilizing natural wind to save energy.

[0027] If the real-time CO concentration or real-time smoke concentration is still exceeded, the intelligent control module will increase the number of ventilation fans turned on until the real-time CO concentration or real-time smoke concentration reaches the standard;

[0028] If it is detected that the natural wind direction is opposite to the ventilation wind direction, the intelligent control module will control the ventilation fan to reverse in real time to achieve the purpose of utilizing natural wind to save energy.

[0029] As a preferred embodiment, when the damper is closed, tunnel ventilation is achieved;

[0030] When the damper is opened, it can block the wind flow while realizing the emergency passage function of the through-level guide.

[0031] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0032] The present invention discloses a novel flat guide ventilation system for a single-hole, two-way traffic tunnel. The system is designed for extra-long single-hole, two-way highway tunnels (generally longer than 6,000 meters) that require two-section ventilation and have a through flat guide. By coordinating the arrangement of a fan room, air supply vents, air exhaust vents, dampers, and connecting air ducts, and combining two ventilation lines to operate simultaneously, the system avoids wind speed deflection and fully utilizes natural wind to achieve the purpose of improving ventilation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0034] Figure 1 This is a schematic diagram of existing conventional flat-guided pressure-in ventilation.

[0035] Figure 2 This is a schematic diagram of the structure of a new flat guide ventilation system for a single-hole two-way driving tunnel of the present invention. Figure 1 ;

[0036] Figure 3 This is a schematic diagram of the structure of a new flat guide ventilation system for a single-hole two-way driving tunnel of the present invention. Figure 2 .

[0037] Reference numerals and corresponding component names:

[0038] 1-tunnel, 2-through flat guide, 3-flat guide air supply section, 4-flat guide exhaust section, 5-fan room, 6-connecting air supply duct, 61-first connecting air supply duct, 62-second connecting air supply duct, 7-connecting exhaust duct, 71-first connecting exhaust duct, 72-second connecting exhaust duct, 8-air supply outlet, 9-exhaust outlet, 10-damper, 11-axial flow fan, 12-jet fan, 13-automatic control system, 14-test module, 15-intelligent control module, 16-natural wind test unit, 17-CO concentration test unit, 18-smoke concentration test unit. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0040] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that these specific details are not necessarily required to practice the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not described in detail to avoid obscuring the present invention.

[0041] Throughout this specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present invention. Therefore, appearances of the phrases "one embodiment," "an embodiment," "an example," or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combinations and / or subcombinations. Furthermore, it will be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes only and are not necessarily drawn to scale. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0042] In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0043] For single-hole two-way driving tunnels with a length of more than 6000m, the current domestic method is to use the flat guide pressure ventilation, that is, fresh air is pressed into the driving tunnel along the flat guide from both ends of the through flat guide, and the polluted air is discharged from the two tunnel openings. Figure 1 Arrow direction. Figure 1 The wind gates 10 are provided at both ends of the through-level guide 2. Although this ventilation method utilizes the level guide to ventilate the tunnel in sections and reduce the design wind speed in the tunnel, the wind speed is turned 180 degrees during the ventilation process, which increases the difficulty of actual operation and fails to fully utilize the natural wind, resulting in poor ventilation effect.

[0044] Therefore, the present invention proposes a new type of flat guide ventilation system for extra-long single-hole bidirectional highway tunnels (generally greater than 6000m) that require two-section ventilation and have a through flat guide. Through the coordinated arrangement of the fan room, air supply outlet, air exhaust outlet, damper and connecting air duct, combined with the simultaneous operation of two ventilation lines, the ventilation wind speed is avoided from turning, and the natural wind is fully utilized to achieve the purpose of improving ventilation efficiency.

[0045] Example

[0046] like Figure 2 and Figure 3 As shown, the present invention discloses a novel flat guide ventilation system for a single-hole bidirectional road tunnel. The system is suitable for single-hole bidirectional highway tunnels with a through flat guide that require two-stage ventilation. The system includes a fan room 5, an air supply port 8, an air outlet 9, a damper 10, and a connecting air duct.

[0047] The damper 10 is provided in the through-plane guide 2 to separate the through-plane guide 2 into a plane guide air supply section 3 and a plane guide air exhaust section 4; the exhaust port 9 and the air supply port 8 are provided on the inner wall of the tunnel 1 from left to right, and the air supply port 8 is connected to the plane guide air supply section 3, and the air exhaust port 9 is connected to the plane guide air exhaust section 4;

[0048] The tunnel 1 and the fan room 5 are both equipped with ventilation fans, and the connecting air ducts include a connecting air supply duct 6 and a connecting air exhaust duct 7;

[0049] The ventilation fans, exhaust outlets 9, connecting exhaust ducts, flat exhaust sections 4 and ventilation fans in the fan room 5 of the tunnel 1 are combined to form a first ventilation circuit to realize ventilation of the front section of the tunnel 1; the ventilation fans in the fan room 5, flat air supply sections 3, connecting air supply ducts, air supply outlets 8 and ventilation fans of the tunnel 1 are combined to form a second ventilation circuit to realize ventilation of the rear section of the tunnel 1; and the first ventilation circuit and the second ventilation circuit work simultaneously to ventilate the tunnel 1.

[0050] As a further implementation, the ventilation fan installed in tunnel 1 of the present invention is a jet fan 12, and the ventilation fan installed in fan room 5 is an axial fan 11. Both axial fan 11 and jet fan 12 are capable of bidirectional rotation. The axial fan 11 of the present invention is installed in a ground-level fan room or an underground fan room, while the jet fan 12 is installed in the vault of tunnel 1. When ventilation is required, the axial and jet fans work together to provide power for the ventilation system. Furthermore, multiple groups of axial fans 11 and jet fans 12 can be provided to meet actual needs.

[0051] As a further implementation, the fan room 5 of the present invention includes two types: a ground fan room and an underground fan room. When the site conditions of the through-hole tunnel are suitable, a ground fan room can be set up; if the site is limited, an underground fan room can be set up. Specifically:

[0052] like Figure 2As shown, in the first way, the fan room 5 of the present invention adopts a ground fan room, and the ground fan room and the tunnel 1 are located on both sides of the through-level guide 2; and ground fan rooms are set at the openings at both ends of the through-level guide 2.

[0053] The connecting air supply duct 6 includes a first connecting air supply duct 61 and a second connecting air supply duct 62, and the connecting air exhaust duct 7 includes a first connecting air exhaust duct 71 and a second connecting air exhaust duct 72; the second connecting air supply duct 62 and the second connecting air exhaust duct 72 intersect and are not connected;

[0054] The fan room 5 passing through the front end of the flat guide 2 is connected to the flat guide air supply section 3 via a first connecting air supply duct 61, and the flat guide air supply section 3 is connected to the air supply outlet 8 via a second connecting air supply duct 62; the flat guide exhaust section 4 is connected to the fan room 5 passing through the rear end of the flat guide 2 via a first connecting exhaust duct 71, and the flat guide exhaust section 4 is connected to the air outlet 9 via a second connecting exhaust duct 72.

[0055] The above technical solution is to supply air through the ground fan room at the front end of the flat guide 2, through the first connecting air supply duct 61, the flat guide air supply section 3 and the second connecting air supply duct 62 to the air supply port 8, and exhaust the air from the jet fan in the tunnel. The specific wind direction is shown in Figure 2 In the direction of arrow A, ventilation of the rear section of tunnel 1 is achieved.

[0056] The jet fan 12 delivers air, which is then fed through the exhaust port 9 to the first connecting exhaust duct 71, the flat guide exhaust section 4, and the second connecting exhaust duct 72, and then exhausted from the ground fan room at the rear end of the flat guide. The specific wind direction is shown in Figure 2 In the direction of arrow B, ventilation of the front section of tunnel 1 is achieved.

[0057] like Figure 3 As shown, the second way: the fan room 5 of the present invention adopts an underground fan room, which is arranged between the through guide 2 and the tunnel 1;

[0058] The horizontal guide air supply section 3 and the underground fan room, as well as the underground fan room and the air supply outlet 8 are connected via a connecting air supply duct 6, and the exhaust outlet 9 and the underground fan room, as well as the underground fan room and the horizontal guide exhaust section 4 are connected via a connecting exhaust duct 7.

[0059] The above technical solution is powered by the axial flow fan in the underground fan room, which is fed through the flat air supply section 3 and the connecting air supply duct 6 to the air supply outlet 8 and discharged out of the tunnel by the jet fan 12 of the tunnel 1. The specific wind direction is shown in Figure 2 In the direction of arrow A, ventilation of the rear section of tunnel 1 is achieved.

[0060] Powered by the axial flow exhaust fan in the underground fan room, the air is supplied by the jet fan 12 in tunnel 1, and then flows through the exhaust port 9 to the connecting exhaust duct 7 and the flat guide exhaust section 4 to be discharged out of the tunnel. The specific wind direction is shown in Figure 2 In the direction of arrow B, ventilation of the front section of tunnel 1 is achieved.

[0061] As a further implementation, the connecting air duct includes a connecting air supply duct 6 and a connecting exhaust duct 7. The present invention first determines the required tunnel ventilation segment length based on the tunnel ventilation calculation; and determines the positions of the connecting air supply duct and the connecting exhaust duct based on the tunnel ventilation segment length. Specifically, by calculating the required air volume of the ventilation section 1 (tunnel entrance to exhaust port 9) and the ventilation section 2 (air supply port 8 to tunnel exit) of the ventilation scheme, the design wind speed of the ventilation section 1 and the ventilation section 2 is obtained. If the design wind speed is less than 8m / s, the ventilation scheme meets the requirements. At this time, the length of the ventilation section 1 is the distance from the tunnel entrance to the exhaust port 9; the length of the ventilation section 2 is the distance from the air supply port 8 to the tunnel exit, and the short-path return section length (i.e., the distance between the exhaust port 9 and the air supply port 8) is generally required to be 50m.

[0062] As a further implementation, the system further includes an automatic control system 13 , which includes a test module 14 and an intelligent control module 15 ;

[0063] The test module 14 includes a natural wind test unit 16, a CO concentration test unit 17, and a smoke concentration test unit 18; the natural wind test unit 16 is used to collect the real-time natural wind speed and direction in the tunnel 1; the CO concentration test unit 17 is used to collect the real-time CO concentration in the tunnel 1; and the smoke concentration test unit 18 is used to collect the real-time smoke concentration in the tunnel 1;

[0064] The intelligent control module 15 is used to intelligently control the opening and closing of the ventilation fan through the real-time data obtained by the testing module 14.

[0065] As a further implementation, the execution process of the intelligent control module 15 includes:

[0066] If the real-time CO concentration or smoke concentration is detected to be above the standard, the intelligent control module will start the ventilation fan according to the real-time natural wind direction, so that the ventilation direction is the same as the natural wind direction, thus achieving the purpose of utilizing natural wind to save energy.

[0067] If the real-time CO concentration or real-time smoke concentration is still exceeded, the intelligent control module will increase the number of ventilation fans turned on until the real-time CO concentration or real-time smoke concentration reaches the standard;

[0068] If it is detected that the natural wind direction is opposite to the ventilation wind direction, the intelligent control module will control the ventilation fan to reverse in real time to achieve the purpose of utilizing natural wind to save energy.

[0069] As a further implementation, when the damper 10 is closed, ventilation of the tunnel 1 is achieved;

[0070] When the damper 10 is opened, it can block the wind flow and realize the emergency passage function of the through-plane guide 2 at the same time.

[0071] The present invention is suitable for ventilation of extra-long single-hole bidirectional highway tunnels (generally greater than 6000m) that require two-stage ventilation and have a through flat guide. The present invention not only avoids the ventilation wind speed turning, but also makes full use of natural wind to achieve the purpose of improving ventilation efficiency.

[0072] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new type of flat guide ventilation system for a single-hole two-way driving tunnel, characterized by: The system is suitable for a single-hole bidirectional highway tunnel with a through-level guideway; the system comprises a fan room (5), an air supply port (8), an air exhaust port (9), a damper (10) and a connecting air duct; The damper (10) is arranged in the through-plane guide (2) and is used to separate the through-plane guide (2) into a plane guide air supply section (3) and a plane guide air exhaust section (4); the air exhaust port (9) and the air supply port (8) are arranged on the inner wall of the tunnel (1) from left to right, and the air supply port (8) is connected to the plane guide air supply section (3), and the air exhaust port (9) is connected to the plane guide air exhaust section (4); ventilation fans are provided in both the tunnel (1) and the fan room (5), and the connecting air duct includes a connecting air supply duct and a connecting air exhaust duct; The ventilation fans, exhaust vents (9), connecting exhaust ducts, horizontal exhaust sections (4) and ventilation fans in a fan room (5) of a tunnel (1) are combined to form a first ventilation line, thereby achieving ventilation of the front section of the tunnel (1); and the ventilation fans in a fan room (5), horizontal air supply sections (3), connecting air supply ducts, air supply vents (8) and ventilation fans of the tunnel (1) are combined to form a second ventilation line, thereby achieving ventilation of the rear section of the tunnel (1).

2. The novel flat guide ventilation system for a single-hole bidirectional driving tunnel according to claim 1 is characterized in that: The first ventilation line and the second ventilation line operate simultaneously to ventilate the tunnel (1).

3. The novel flat guide ventilation system for a single-hole bidirectional driving tunnel according to claim 1 is characterized in that: The ventilation fan provided in the tunnel (1) is a jet fan (12), and the ventilation fan provided in the fan room (5) is an axial flow fan (11); both the axial flow fan (11) and the jet fan (12) are capable of bidirectional rotation.

4. The novel flat guide ventilation system for a single-hole bidirectional driving tunnel according to claim 3 is characterized in that: The jet fan (12) is installed on the vault of the tunnel (1).

5. The novel flat guide ventilation system for a single-hole bidirectional driving tunnel according to claim 1 is characterized in that: The fan room (5) is a ground fan room, and the ground fan room and the tunnel (1) are located on both sides of the through-level guide (2); and ground fan rooms are provided at both end openings of the through-level guide (2).

6. The novel flat guide ventilation system for a single-hole bidirectional driving tunnel according to claim 5 is characterized in that: The connecting air supply duct includes a first connecting air supply duct (61) and a second connecting air supply duct (62), and the connecting air exhaust duct includes a first connecting air exhaust duct (71) and a second connecting air exhaust duct (72); the second connecting air supply duct (62) and the second connecting air exhaust duct (72) intersect and are not connected; The fan room (5) passing through the front end of the flat guide (2) is connected to the flat guide air supply section (3) via a first connecting air supply duct (61), and the flat guide air supply section (3) is connected to the air supply port (8) via a second connecting air supply duct (62); the flat guide exhaust section (4) is connected to the fan room (5) passing through the rear end of the flat guide (2) via a first connecting exhaust duct (71), and the flat guide exhaust section (4) is connected to the air outlet (9) via a second connecting exhaust duct (72).

7. The novel flat guide ventilation system for a single-hole bidirectional driving tunnel according to claim 1 is characterized in that: The fan room (5) is an underground fan room, and the underground fan room is arranged between the through-level guide (2) and the tunnel (1); The horizontal guide air supply section (3) and the underground fan room, as well as the underground fan room and the air supply outlet (8) are all connected via a connecting air supply duct, and the air exhaust outlet (9) and the underground fan room, as well as the underground fan room and the horizontal guide air exhaust section (4) are all connected via a connecting air exhaust duct.

8. The novel flat guide ventilation system for a single-hole bidirectional driving tunnel according to claim 1 is characterized in that: The system further comprises an automatic control system (13), wherein the automatic control system (13) comprises a test module (14) and an intelligent control module (15); The test module (14) includes a natural wind test unit (16), a CO concentration test unit (17), and a smoke concentration test unit (18); the natural wind test unit (16) is used to collect the real-time natural wind speed and natural wind direction in the tunnel (1); the CO concentration test unit (17) is used to collect the real-time CO concentration in the tunnel (1); and the smoke concentration test unit (18) is used to collect the real-time smoke concentration in the tunnel (1); The intelligent control module (15) is used to intelligently control the opening and closing of the ventilation fan through the real-time data obtained by the test module (14).

9. The novel flat guide ventilation system for a single-hole bidirectional driving tunnel according to claim 8 is characterized in that: The execution process of the intelligent control module (15) includes: If the real-time CO concentration or smoke concentration is detected to be above the standard, the intelligent control module will start the ventilation fan according to the real-time natural wind direction, so that the ventilation direction is the same as the natural wind direction, thus achieving the purpose of utilizing natural wind to save energy. If the real-time CO concentration or real-time smoke concentration is still exceeded, the intelligent control module will increase the number of ventilation fans turned on until the real-time CO concentration or real-time smoke concentration reaches the standard; If it is detected that the natural wind direction is opposite to the ventilation wind direction, the intelligent control module will control the ventilation fan to reverse in real time to achieve the purpose of utilizing natural wind to save energy.

10. The novel flat guide ventilation system for a single-hole bidirectional driving tunnel according to claim 1 is characterized in that: When the damper (10) is closed, ventilation of the tunnel (1) is achieved; When the damper (10) is opened, it blocks the wind flow while achieving an emergency passage function through the horizontal guide (2).

Images