Tunnel fire communication ventilation and smoke exhaust system

Abstract

The utility model discloses a tunnel fire communication ventilation and smoke exhaust system, and belongs to the technical field of tunnel smoke exhaust. The problem that when an existing smoke exhaust system works, fire spread severely along a single tunnel is solved. The tunnel specifically comprises a right-hand tunnel and a left-hand tunnel, and the right-hand tunnel and the left-hand tunnel are communicated through a first connecting air duct and a second connecting air duct. The entrance of the right tunnel is provided with a right entrance fan group, and the exit of the right tunnel is provided with a right exit fan group; the entrance of the left tunnel is provided with a left entrance fan group, and the exit of the left tunnel is provided with a left exit fan group; a first communication fan group is arranged in the first communication air duct, and a second communication fan group is arranged in the second communication air duct. According to the utility model, the fan groups are matched with one another to work, and smoke in the tunnel on one side is blown to the tunnel on the other side through the connecting air duct and is discharged from the other tunnel, so that fire is prevented from spreading in the tunnel on one side, and the safety of personnel in the tunnel is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel smoke exhaust, in particular to a tunnel fire communication ventilation and smoke exhaust system. Background Art

[0002] With the development of transportation, more and more long tunnels are being built, and the social and economic benefits they bring are becoming increasingly significant. Due to the characteristics of the tunnel structure itself, its interior is relatively closed, which makes it difficult to exhaust smoke inside under natural conditions; therefore, once a fire occurs inside the tunnel, it will pose a great threat to the tunnel structure and the life safety of the passengers inside, and bring great difficulties to the evacuation and rescue work.

[0003] At present, the smoke exhaust system of tunnels is basically combined with ventilation methods. Industrial fans are designed on the top of the tunnel to increase the air flow inside the tunnel. Under normal circumstances, the industrial fan plays a ventilation function; in the case of a fire, it plays a smoke exhaust and smoke control function. Its main purpose is to create a safe and comfortable evacuation environment for passengers and help firefighters reach the fire scene quickly and conveniently. Although the existing smoke exhaust system can achieve the effect of smoke exhaust, under the action of the industrial fan, the airflow flows longitudinally along a single tunnel inside it, which promotes the spread of the fire while exhausting the smoke, posing a great threat to the life safety of trapped people and firefighters in the tunnel.

[0004] The utility model provides a smoke exhaust system which can prevent fire from spreading in a single tunnel. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a tunnel fire communication ventilation and smoke exhaust system, which solves the problem that when the existing smoke exhaust system is working, the fire spreads seriously along a single tunnel.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A tunnel fire communication ventilation and smoke exhaust system comprises a right tunnel and a left tunnel, wherein the right tunnel and the left tunnel are connected via a first communication air duct and a second communication air duct;

[0008] The entrance of the right-bound tunnel is provided with a right-bound entrance fan group, and the exit of the right-bound tunnel is provided with a right-bound exit fan group; the entrance of the left-bound tunnel is provided with a left-bound entrance fan group, and the exit of the left-bound tunnel is provided with a left-bound exit fan group;

[0009] A first connecting fan group is arranged in the first connecting air duct, and a second connecting fan group is arranged in the second connecting air duct.

[0010] In this scheme, when a fire occurs inside the right-bound tunnel, the blowing direction of the right-bound entrance fan group is from the entrance to the exit of the right-bound tunnel; the blowing direction of the right-bound exit fan group is from the exit to the entrance of the right-bound tunnel; the blowing direction of the second connecting fan group is from the right-bound tunnel to the left-bound tunnel; the blowing direction of the left-bound entrance fan group and the left-bound exit fan group are both from the exit to the entrance of the left-bound tunnel; each fan group cooperates with each other to blow the smoke inside the right-bound tunnel to the left-bound tunnel through the second connecting air duct, and the right-bound entrance fan group and the right-bound exit fan group blow in opposite directions, avoiding the spread of fire in the right-bound tunnel and exhausting the smoke at the same time.

[0011] When a fire occurs in the left-bound tunnel, the blowing direction of the left-bound exit fan group is from the exit to the entrance of the left-bound tunnel, and the blowing direction of the left-bound entrance fan group is from the entrance to the exit of the left-bound tunnel; the blowing direction of the first connecting fan group is from the left-bound tunnel to the right-bound tunnel; the blowing direction of the right-bound entrance fan group and the right-bound exit fan group are both from the exit to the entrance of the right-bound tunnel; with the cooperation of each fan group, the smoke inside the left-bound tunnel is blown to the right-bound tunnel through the first connecting air duct, and the fire is effectively prevented from spreading in the left-bound tunnel.

[0012] Furthermore, a right-bound middle fan group is provided in the right-bound tunnel, and the right-bound middle fan group is located between the first connecting air duct and the second connecting air duct; a left-bound middle fan group is provided in the left-bound tunnel, and the left-bound middle fan group is located between the first connecting air duct and the second connecting air duct.

[0013] In this scheme, a right-row middle fan group is arranged in the right-row air duct. When the right-row entrance fan group and the right-row exit fan group blow out the smoke inside the left-row tunnel, the right-row middle fan group can increase the air flow rate in the right-row tunnel to improve the smoke exhaust efficiency; the smoke exhaust effect of the left-row middle fan group is similar to that of the right-row middle fan group.

[0014] Furthermore, the blowing ends of the right-row entrance fan group and the right-row intermediate fan group are oriented toward the exit direction of the right-row tunnel; the blowing end of the right-row exit fan group is oriented toward the entrance direction of the right-row tunnel;

[0015] The blowing end of the second connecting fan group faces the left tunnel direction;

[0016] The blowing ends of the left-moving exit fan group and the left-moving intermediate fan group face the entrance direction of the left-moving tunnel; the blowing end of the left-moving entrance fan group faces the entrance direction of the left-moving tunnel.

[0017] In this proposal, the design is used to exhaust smoke when a fire occurs in the right tunnel.

[0018] Furthermore, the blowing ends of the left-row entrance fan group and the left-row intermediate fan group face the exit direction of the left-row tunnel; the blowing end of the left-row exit fan group faces the entrance direction of the left-row tunnel;

[0019] The blowing end of the first connecting fan group faces the right tunnel direction;

[0020] The blowing ends of the right row exit fan group and the right row intermediate fan group face the entrance direction of the right row tunnel; the blowing end of the right row entrance fan group faces the entrance direction of the right row tunnel.

[0021] In this proposal, the design is used to exhaust smoke when a fire occurs in the left-hand tunnel.

[0022] Furthermore, the right inlet fan group, the right outlet fan group, the left inlet fan group, the left outlet fan group, the first connecting fan group, the second connecting fan group, the right middle fan group and the left middle fan group all use forward and reverse rotating industrial fans.

[0023] In this scheme, forward and reverse industrial fans are used to control the blowing direction of each fan group, so as to facilitate flexible application in smoke exhaust work in left-travel tunnels and right-travel tunnels.

[0024] Furthermore, a first connecting air duct door is provided in the first connecting air duct, and a second connecting air duct door is provided in the second connecting air duct.

[0025] In this solution, a first connecting air duct door and a second connecting air duct door are designed. When a fire occurs in the right tunnel, smoke blows from the second connecting air duct to the left tunnel, and the first connecting air duct door can be closed at this time; when a fire occurs in the left tunnel, smoke blows from the first connecting air duct to the right tunnel, and the second connecting air duct door can be closed at this time.

[0026] Furthermore, it also includes a control system; the right row inlet fan group, the right row outlet fan group, the left row inlet fan group, the left row outlet fan group, the first connecting fan group, the second connecting fan group, the right row middle fan group and the left row middle fan group are all electrically connected to the control system.

[0027] The beneficial effects of the utility model are:

[0028] In the tunnel fire communication ventilation and smoke exhaust system provided by the utility model, when a fire occurs in the right-bound tunnel, the right-bound entrance fan group and the right-bound exit fan group blow towards each other, blowing the smoke inside the right-bound tunnel to the left-bound tunnel, and then the left-bound entrance fan group and the left-bound exit fan group inside the left-bound tunnel blow the smoke out of the tunnel; the fire can be effectively prevented from spreading inside the right-bound tunnel. When a fire occurs in the left-bound tunnel, the left-bound exit fan group and the left-bound entrance fan group blow towards each other, blowing the smoke inside the left-bound tunnel to the right-bound tunnel, and then the right-bound entrance fan group and the right-bound exit fan group inside the right-bound tunnel blow the smoke out of the tunnel; the fire can be effectively prevented from spreading inside the left-bound tunnel, ensuring the safety of trapped people and rescuers inside the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of a tunnel fire communication ventilation and smoke exhaust system of the utility model;

[0030] Figure 2 This is a schematic diagram of the installation structure of the forward and reverse industrial fan of the utility model;

[0031] Figure 3 This is the air flow diagram when a fire occurs in the right-bound tunnel of the utility model;

[0032] Figure 4 This is the air flow diagram when a fire occurs in the left-hand tunnel of the utility model.

[0033] Reference numerals:

[0034] 1. Right-bound tunnel; 11. Right-bound entrance fan group; 12. Right-bound exit fan group; 13. Right-bound middle fan group; 2. Left-bound tunnel; 21. Left-bound exit fan group; 22. Left-bound entrance fan group; 23. Left-bound middle fan group; 3. First connecting air duct; 31. First connecting fan group; 32. First connecting air duct door; 4. Second connecting air duct; 41. Second connecting fan group; 42. Second connecting air duct door; 5. Installation frame; 6. Expansion bolts; DETAILED DESCRIPTION

[0035] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. The specific implementation of the utility model is described below to facilitate the understanding of the utility model by those skilled in the art, but it should be clear that the utility model is not limited to the scope of the specific implementation. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all inventions and creations conceived using the utility model are protected.

[0036] Example 1

[0037] like Figure 1As shown, this embodiment provides a tunnel fire communication ventilation and smoke exhaust system, which can transfer the smoke inside a single tunnel to another tunnel through the cooperation of various fan groups, thereby effectively preventing the fire from spreading in a single tunnel; it specifically includes:

[0038] Right tunnel 1, left tunnel 2, first connecting air duct 3, second connecting air duct 4; right inlet fan group 11, right outlet fan group 12, left inlet fan group 22, left outlet fan group 21, first connecting fan group 31, second connecting fan group 41, right middle fan group 13 and left middle fan group 23;

[0039] The right tunnel 1 and the left tunnel 2 are connected through the first connecting air duct 3 and the second connecting air duct 4; the entrance of the right tunnel 1 is provided with a right entrance fan group 11, and the exit of the right tunnel 1 is provided with a right exit fan group 12; the entrance of the left tunnel 2 is provided with a left entrance fan group 22, and the exit of the left tunnel 2 is provided with a left exit fan group 21; the first connecting air duct 3 is provided with a first connecting air duct 3, and the second connecting air duct 4 is provided with a second connecting air duct 41. The right tunnel 1 is also provided with a right intermediate fan group 13, and the right intermediate fan group 13 is arranged in the middle of the first connecting air duct 3 and the second connecting air duct 4; the left tunnel 2 is also provided with a left intermediate fan group 23, and the left intermediate fan group 23 is arranged in the middle of the first connecting air duct 3 and the second connecting air duct 4.

[0040] A first connecting air duct door 32 is provided in the first connecting air duct 3, and a second connecting air duct door 42 is provided in the second connecting air duct 4. The first connecting air duct door 32 and the second connecting air duct door 42 are designed so that when a fire occurs in the right tunnel 1, smoke blows from the second connecting air duct 4 to the left tunnel 2, and the first connecting air duct door 32 can be closed at this time; when a fire occurs in the left tunnel 2, smoke blows from the first connecting air duct 3 to the right tunnel 1, and the second connecting air duct door 42 can be closed at this time.

[0041] As a preferred embodiment of the present invention, the first connecting air duct door 32 and the second connecting air duct door 42 can both adopt existing tunnel wind pressure resistant fire doors, connecting passages, subways, high-speed railways and highway fiberglass protective doors.

[0042] The right inlet fan group 11, the right outlet fan group 12, the left inlet fan group 22, the left outlet fan group 21, the first contact fan group 31, the second contact fan group 41, the right intermediate fan group 13 and the left intermediate fan group 23 all adopt positive and negative reversing industrial fans; positive and negative reversing industrial fans are adopted to control the blowing direction of each fan group, so as to be flexibly applied to the smoke exhaust work of the left tunnel 2 and the right tunnel 1. As the preferred embodiment of this embodiment, the positive and negative reversing industrial fans can select YG-ventilator axial jet duct fan subway culvert tunnel bidirectional reversible positive and negative airflow exhaust fan.

[0043] In this embodiment, the forward and reverse industrial fan can be installed on the top of the tunnel through its own threaded holes; it can also be installed through the installation frame 5, such as Figure 2 As shown; the interior of the mounting frame 5 is hollow to carry each forward and reverse industrial fan; the top of the mounting frame 5 is an arc-shaped mounting plate, on which expansion bolts 6 are penetrated, and the mounting frame 5 is fixed to the tunnel lining through the expansion bolts 6 on the mounting plate.

[0044] The tunnel fire communication ventilation and smoke exhaust system provided in this embodiment also includes a control system; the right row inlet fan group 11, the right row outlet fan group 12, the left row inlet fan group 22, the left row outlet fan group 21, the first communication fan group 31, the second communication fan group 41, the right row middle fan group 13 and the left row middle fan group 23 are all electrically connected to the control system.

[0045] As a preferred embodiment of this embodiment, the control system can adopt FRN0012C2S-7C-simple controller.

[0046] The working principle of this embodiment is:

[0047] like Figure 3 As shown, when a fire occurs inside the right tunnel 1, the first connecting air duct door 32 is closed; the blowing direction of the right entrance fan group 11 and the right middle fan group 13 is from the entrance to the exit of the right tunnel 1; the blowing direction of the right exit fan group 12 is from the exit to the entrance of the right tunnel 1; the blowing direction of the second connecting air fan group 41 is from the right tunnel 1 to the left tunnel 2; the blowing direction of the left exit fan group 21 and the left middle fan group 23 are both from the exit to the entrance of the left tunnel 2; the blowing direction of the left entrance fan group 22 is both from the exit to the entrance of the left tunnel 2; the smoke inside the right tunnel 1 is blown to the left tunnel 2 through the second connecting air duct 4, and discharged from the entrance of the left tunnel 2.

[0048] like Figure 4 As shown, when a fire occurs in the left-bound tunnel 2, the second connecting air duct door 42 is closed; the blowing direction of the left-bound outlet fan group 21 is from the outlet to the entrance of the left-bound tunnel 2, and the blowing direction of the left-bound inlet fan group 22 and the left-bound middle fan group 23 is from the entrance to the outlet of the left-bound tunnel 2; the blowing direction of the first connecting air fan group 31 is from the left-bound tunnel 2 to the right-bound tunnel 1; the blowing direction of the right-bound outlet fan group 12 and the right-bound middle fan group 13 are both from the outlet to the entrance of the right-bound tunnel 1, and the blowing direction of the right-bound inlet fan group 11 is from the outlet to the entrance of the right-bound tunnel 1; the smoke inside the left-bound tunnel 2 is blown toward the right-bound tunnel 1 through the first connecting air duct 3, and is discharged from the entrance of the right-bound tunnel 1.

[0049] Example 2

[0050] Based on the tunnel fire communication ventilation and smoke exhaust system provided in Example 1, this embodiment provides a smoke exhaust system for a fire in the right-bound tunnel 1; in the smoke exhaust system, the blowing ends of the right-bound entrance fan group 11 and the right-bound intermediate fan group 13 face the exit direction of the right-bound tunnel 1; the blowing end of the right-bound exit fan group 12 faces the entrance direction of the right-bound tunnel 1;

[0051] The blowing end of the second connecting fan group 41 faces the left tunnel 2;

[0052] The blowing ends of the left-moving outlet fan group 21 and the left-moving intermediate fan group 23 face the entrance direction of the left-moving tunnel 2 ; the blowing end of the left-moving inlet fan group 22 faces the entrance direction of the left-moving tunnel 2 .

[0053] Example 3

[0054] This embodiment is based on the tunnel fire liaison ventilation and smoke exhaust system provided in Embodiment 1, and provides a smoke exhaust system for a fire in the left-bound tunnel 2; in the smoke exhaust system, the blowing ends of the left-bound inlet fan group 22 and the left-bound intermediate fan group 23 face the exit direction of the left-bound tunnel 2; the blowing end of the left-bound outlet fan group 21 faces the entrance direction of the left-bound tunnel 2;

[0055] The blowing end of the first connecting fan group 31 faces the right tunnel 1;

[0056] The blowing ends of the right row outlet fan group 12 and the right row intermediate fan group 13 face the entrance direction of the right row tunnel 1 ; the blowing end of the right row inlet fan group 11 faces the entrance direction of the right row tunnel 1 .

[0057] Those skilled in the art will appreciate that the embodiments herein are intended to help readers understand the principles of the present invention, and should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific variations and combinations based on the technical inspiration disclosed in the present invention without departing from the essence of the present invention, and these variations and combinations are still within the protection scope of the present invention.

Claims

1. A tunnel fire communication ventilation and smoke exhaust system, characterized in that: It comprises a right-bound tunnel (1) and a left-bound tunnel (2), wherein the right-bound tunnel (1) and the left-bound tunnel (2) are connected via a first connecting air duct (3) and a second connecting air duct (4); The entrance of the right-bound tunnel (1) is provided with a right-bound entrance fan group (11), and the exit of the right-bound tunnel (1) is provided with a right-bound exit fan group (12); the entrance of the left-bound tunnel (2) is provided with a left-bound entrance fan group (22), and the exit of the left-bound tunnel (2) is provided with a left-bound exit fan group (21); A first connecting air fan group (31) is arranged in the first connecting air duct (3), and a second connecting air fan group (41) is arranged in the second connecting air duct (4).

2. The tunnel fire communication ventilation and smoke exhaust system according to claim 1 is characterized in that: A right-bound intermediate fan group (13) is also provided in the right-bound tunnel (1), and the right-bound intermediate fan group (13) is provided at a position between the first connecting air duct (3) and the second connecting air duct (4); A left-moving intermediate fan group (23) is also provided in the left-moving tunnel (2), and the left-moving intermediate fan group (23) is arranged at a position between the first connecting air duct (3) and the second connecting air duct (4).

3. The tunnel fire communication ventilation and smoke exhaust system according to claim 2 is characterized in that: The blowing ends of the right-row entrance fan group (11) and the right-row intermediate fan group (13) are oriented toward the exit direction of the right-row tunnel (1); the blowing ends of the right-row exit fan group (12) are oriented toward the entrance direction of the right-row tunnel (1); The blowing end of the second connecting fan group (41) faces the left tunnel (2); The blowing ends of the left-row outlet fan group (21) and the left-row intermediate fan group (23) face the entrance direction of the left-row tunnel (2); and the blowing end of the left-row inlet fan group (22) faces the entrance direction of the left-row tunnel (2).

4. The tunnel fire communication ventilation and smoke exhaust system according to claim 2, characterized in that: The blowing ends of the left-row inlet fan group (22) and the left-row intermediate fan group (23) are oriented toward the exit direction of the left-row tunnel (2); the blowing end of the left-row outlet fan group (21) is oriented toward the entrance direction of the left-row tunnel (2); The blowing end of the first connecting fan group (31) faces the right tunnel (1); The blowing ends of the right-row outlet fan group (12) and the right-row intermediate fan group (13) face the entrance direction of the right-row tunnel (1); and the blowing end of the right-row inlet fan group (11) faces the entrance direction of the right-row tunnel (1).

5. The tunnel fire communication ventilation and smoke exhaust system according to claim 2 is characterized in that: The right row inlet fan group (11), the right row outlet fan group (12), the left row inlet fan group (22), the left row outlet fan group (21), the first connecting fan group (31), the second connecting fan group (41), the right row intermediate fan group (13) and the left row intermediate fan group (23) all adopt forward and reverse rotating industrial fans.

6. The tunnel fire communication ventilation and smoke exhaust system according to claim 1, characterized in that: A first connecting air duct door (32) is provided in the first connecting air duct (3), and a second connecting air duct door (42) is provided in the second connecting air duct (4).

7. The tunnel fire communication ventilation and smoke exhaust system according to claim 2, characterized in that: It also includes a control system; the right row inlet fan group (11), the right row outlet fan group (12), the left row inlet fan group (22), the left row outlet fan group (21), the first connecting fan group (31), the second connecting fan group (41), the right row intermediate fan group (13) and the left row intermediate fan group (23) are all electrically connected to the control system.

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