Local ventilation duct type tunnel ventilation system for ventilation

Abstract

The utility model relates to a local ventilation duct type tunnel ventilation system for ventilation. How to design a ventilation system capable of effectively reducing the ventilation electric energy consumption of the long-distance tunnel on the premise of ensuring the ventilation safety of the tunnel has important significance. The system comprises a first transverse channel, a local parallel guide, a vertical shaft and a second transverse channel, the local parallel adit is longitudinally arranged between the left line main tunnel and the right line main tunnel, and the top of the local parallel adit is connected into the vertical shaft; the first transverse channel is transversely connected between the left line main tunnel and the local parallel adit, and the second transverse channel is transversely connected between the right line main tunnel and the local parallel adit. According to the system, after construction of the main tunnel is completed, the local flat adit is additionally arranged between the two single-track tunnels to serve as the ventilation channel, the transverse channel is arranged between the local flat adit and the main tunnel to be connected, and therefore vitiated air in the tunnels can be rapidly sucked into the ventilation channel through the system structure, and the air quality and personnel safety in the tunnels are guaranteed; and the operation energy consumption is also effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel ventilation, in particular to a local ventilation duct type tunnel ventilation system for ventilation. Background Art

[0002] Whether it is electric traction or diesel traction, there are tunnel air pollution problems to varying degrees in railways. These harmful gases not only harm human health, but also have adverse effects on tunnel facilities, structures and trains. Therefore, it is very necessary to take necessary tunnel ventilation measures to maintain a good air environment in the tunnel.

[0003] With the rapid development of railway construction, railway tunnels are being built more and more, and they are getting longer and longer. It is of great significance to design a ventilation system that can effectively reduce the ventilation power consumption of long-distance tunnels while ensuring the ventilation safety of the tunnel. Summary of the invention

[0004] The utility model aims to provide a local ventilation duct type tunnel ventilation system for ventilation, so as to at least solve the problem of effectively reducing the power consumption of long-distance tunnel ventilation.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A local ventilation duct type tunnel ventilation system for ventilation, the system comprising a first transverse passage, a local horizontal guide, a vertical shaft and a second transverse passage;

[0007] The local flat guide is longitudinally arranged between the left-line main tunnel and the right-line main tunnel, and the top of the local flat guide is connected to the vertical shaft;

[0008] The first transverse channel is transversely connected between the left line main hole and the local flat guide, and the second transverse channel is transversely connected between the right line main hole and the local flat guide.

[0009] Furthermore, the local flat guide is arranged higher than the left-line main hole and the right-line main hole, and the first transverse channel and the second transverse channel are respectively connected to the local flat guide obliquely upward from the left-line main hole and the right-line main hole.

[0010] Furthermore, the bottom of the vertical shaft is connected to the longitudinal middle part of the local flat guide.

[0011] Furthermore, the number of the first transverse channels is two, and the two first transverse channels are respectively arranged on the longitudinal front and rear sides of the shaft.

[0012] Furthermore, the number of the second transverse channels is three, one of which is arranged at a position corresponding to the vertical shaft, and the other two second transverse channels are respectively arranged at both ends of the longitudinal direction of the local flat guide.

[0013] Furthermore, the first transverse channel, the local horizontal guide and the second transverse channel form a herringbone-shaped ventilation unit on a plane, and each of the herringbone-shaped ventilation units is connected to one of the vertical shafts.

[0014] Furthermore, a plurality of the herringbone-shaped ventilation units are arranged at intervals between the left-line main tunnel and the right-line main tunnel.

[0015] Furthermore, an inclined shaft is provided on the outside of the left-line main tunnel or the outside of the right-line main tunnel corresponding to the herringbone ventilation unit.

[0016] Furthermore, fans are provided on both lateral sides of the left-line main tunnel and the right-line main tunnel.

[0017] Furthermore, fans are arranged on both lateral sides of the local flat guide.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] This system includes local flat guides, cross passages, vertical shafts and inclined shafts. After the construction of the tunnel main tunnel is completed, a local flat guide is added between the two single-track tunnels as a ventilation duct. A cross passage is set at a certain distance between the local flat guide and the tunnel main tunnel to connect them. Such a system structure is conducive to quickly sucking the polluted air in the tunnel into the ventilation duct, which not only ensures the air quality and personnel safety in the tunnel, but also effectively reduces the operating energy consumption.

[0020] This system also has a safe escape function. When a fire occurs, people in the tunnel can enter the local flat guide for temporary shelter, or escape from the local flat guide into the tunnel on the other side to avoid casualties. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a plan view of an embodiment of the utility model.

[0023] Figure 2 It is a schematic elevation view of an embodiment of the utility model.

[0024] Figure 3 It is a schematic diagram of the arrangement of fans in the main tunnel in one embodiment of the utility model.

[0025] Figure 4 It is a schematic diagram of the arrangement of fans in a local flat guide in one embodiment of the utility model.

[0026] The symbols in the figure are:

[0027] 1-left line main tunnel, 2-first horizontal passage, 3-local horizontal guide, 4-vertical shaft, 5-second horizontal passage, 6-right line main tunnel, 7-inclined shaft, 8-fan. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0029] In the description of this patent, it should be understood that the terms "middle", "upper", "lower", "front", "back", "left", "right", "vertical", "longitudinal", "lateral", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this patent.

[0030] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "connection", "setting", "access", etc. should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integral connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0031] The utility model relates to a local ventilation duct type tunnel ventilation system for ventilation, which is locally arranged between a left-line main tunnel 1 and a right-line main tunnel 6 and is used for air replacement between the tunnel and the outside world to achieve the purpose of ventilation.

[0032] like Figure 1, the direction of the left-line main tunnel 1 and the right-line main tunnel 6 in the figure is defined as the longitudinal direction, and the direction perpendicular to the direction of the left-line main tunnel 1 and the right-line main tunnel 6 is the transverse direction. The system includes a first transverse channel 2, a local flat guide 3, a vertical shaft 4, and a second transverse channel 5. The local flat guide 3 is longitudinally arranged between the left-line main tunnel 1 and the right-line main tunnel 6, and the top of the local flat guide 3 is connected to the vertical shaft 4. The first transverse channel 2 is transversely connected between the left-line main tunnel 1 and the local flat guide 3, and the second transverse channel 5 is transversely connected between the right-line main tunnel 6 and the local flat guide 3.

[0033] The vertical shaft 4 can directly utilize the existing structure during tunnel construction, and the local guideway 3 is arranged in the section corresponding to the vertical shaft 4, and the bottom of the vertical shaft 4 is connected to the longitudinal middle of the local guideway 3. The lateral distances between the local guideway 3 and the left line main tunnel 1 and the right line main tunnel 6 are roughly the same.

[0034] Figure 1 In the figure, the number of the first transverse channels 2 is two, and the two first transverse channels 2 are respectively arranged on the longitudinal front and rear sides of the vertical shaft 4. The number of the second transverse channels 5 is three, one of which is arranged at the position corresponding to the vertical shaft 4, and the other two second transverse channels 5 are respectively arranged at the longitudinal ends of the local flat guide 3. The first transverse channel 2, the local flat guide 3 and the second transverse channel 5 form a herringbone ventilation unit on the plane. Of course, the number of the first transverse channel 2 and the second transverse channel 5 can also be interchanged, but the positions are always staggered longitudinally to avoid the transverse correspondence between the transverse channels on both sides of the local flat guide 3 and the mutual influence of ventilation on both sides.

[0035] Each T-shaped ventilation unit is connected to a vertical shaft 4. A plurality of T-shaped ventilation units can be arranged at intervals between the left-line main tunnel 1 and the right-line main tunnel 6 as required. An inclined shaft 7 is arranged outside the left-line main tunnel 1 or outside the right-line main tunnel 6 corresponding to the T-shaped ventilation unit. The inclined shaft 7 can also directly utilize the existing structure during tunnel construction. The inclined shaft 7 cooperates with the T-shaped ventilation unit to jointly undertake the ventilation function.

[0036] like Figure 2 The local flat guide 3 is higher than the left line main tunnel 1 and the right line main tunnel 6, and the first transverse channel 2 and the second transverse channel 5 are connected to the local flat guide 3 from the left line main tunnel 1 and the right line main tunnel 6 in an oblique upward direction. When the tunnel is frequently opened, the temperature in the tunnel rises, and the oblique transverse channel is conducive to the rising and discharge of hot air.

[0037] like Figure 3 , fans 8 are arranged on both sides of the left line main tunnel 1 and the right line main tunnel 6, and are installed on fan brackets. Figure 4 Fans 8 are arranged on both sides of the local flat guide 3 and are also installed on the fan bracket.

[0038] Generally, when the tunnel is open to traffic, the operation of vehicles will form piston wind in the two-line main tunnel of the tunnel, and the dirty air in the tunnel will be discharged from the vertical shaft 4 through the horizontal channel and the local flat guide 3. After that, due to the pressure difference, fresh air will be introduced from the vertical shaft 4 and enter the two-line main tunnel of the tunnel through the local flat guide 3 and the horizontal channel to achieve air replacement. At the same time, the air in the main tunnel of the tunnel on the side where the inclined shaft 7 is not set can also enter the main tunnel of the other side through the herringbone ventilation unit, and can be discharged through the inclined shaft 7 set in the main tunnel of the other side. During the ventilation process, the fan 8 in the two-line main tunnel of the tunnel and the local flat guide 3 can be turned on to guide the air flow and improve the efficiency of air replacement.

[0039] In addition, when a fire occurs, people in the two main tunnels of the tunnel can take shelter in the T-shaped ventilation unit, or escape from the T-shaped ventilation unit to the other side to avoid casualties.

[0040] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A local ventilation duct type tunnel ventilation system for ventilation, characterized in that: The system comprises a first transverse channel (2), a local horizontal guide (3), a vertical shaft (4) and a second transverse channel (5); The local flat guide (3) is longitudinally arranged between the left-line main tunnel (1) and the right-line main tunnel (6), and the top of the local flat guide (3) is connected to the vertical shaft (4); The first transverse channel (2) is transversely connected between the left line main hole (1) and the local flat guide (3), and the second transverse channel (5) is transversely connected between the right line main hole (6) and the local flat guide (3).

2. A local ventilation duct type tunnel ventilation system for ventilation according to claim 1, characterized in that: The local flat guide (3) is arranged higher than the left line main hole (1) and the right line main hole (6), and the first transverse channel (2) and the second transverse channel (5) are connected to the local flat guide (3) obliquely upward from the left line main hole (1) and the right line main hole (6) respectively.

3. A local ventilation duct type tunnel ventilation system for ventilation according to claim 2, characterized in that: The bottom of the vertical shaft (4) is connected to the longitudinal middle part of the local flat guide (3).

4. A local ventilation duct type tunnel ventilation system for ventilation according to claim 3, characterized in that: The number of the first transverse channels (2) is two, and the two first transverse channels (2) are respectively arranged on the longitudinal front and rear sides of the vertical shaft (4).

5. A local ventilation duct type tunnel ventilation system for ventilation according to claim 4, characterized in that: The number of the second transverse channels (5) is three, one of which is arranged at a position corresponding to the vertical shaft (4), and the other two second transverse channels (5) are respectively arranged at the longitudinal ends of the local flat guide (3).

6. A local ventilation duct type tunnel ventilation system for ventilation according to claim 5, characterized in that: The first transverse channel (2), the local horizontal guide (3) and the second transverse channel (5) form a herringbone-shaped ventilation unit on a plane, and each of the herringbone-shaped ventilation units is connected to one of the vertical shafts (4).

7. A local ventilation duct type tunnel ventilation system for ventilation according to claim 6, characterized in that: A plurality of the herringbone-shaped ventilation units are arranged at intervals between the left-line main tunnel (1) and the right-line main tunnel (6).

8. A local ventilation duct type tunnel ventilation system for ventilation according to claim 7, characterized in that: An inclined shaft (7) is provided on the outside of the left-line main tunnel (1) or the outside of the right-line main tunnel (6) corresponding to the herringbone ventilation unit.

9. A local ventilation duct type tunnel ventilation system for ventilation according to claim 8, characterized in that: Fans (8) are arranged on both sides of the left-line main tunnel (1) and the right-line main tunnel (6) in a lateral direction.

10. A local ventilation duct type tunnel ventilation system for ventilation according to claim 9, characterized in that: Fans (8) are arranged on both lateral sides of the local flat guide (3).

Images