Tunnel long distance ventilation air duct

Abstract

This utility model provides a long-distance ventilation chamber for tunnels, relating to the technical field of tunnel ventilation devices. It includes a chamber structure and a fan structure. The chamber structure is installed within the main tunnel opening of the external tunnel lining structure, and comprises a chamber shell formed by connecting multiple chamber shell units. The chamber shell has a first external interface and a second external interface, both of which are equipped with fan structures. The first external interface is used to connect with the tunnel inclined shaft of the tunnel lining structure through a corresponding fan structure; the second external interface is used to connect with the tunnel cross passage of the tunnel lining structure through a corresponding fan structure. This utility model alleviates the technical problems of existing technologies in long-distance construction tunnel ventilation, such as the inability to control the airflow of ducts at multiple construction ends and the cumbersome installation of multiple ducts.

Description

Technical Field

[0001] This utility model relates to the technical field of tunnel ventilation devices, and in particular to a long-distance ventilation chamber for tunnels. Background Technology

[0002] In current tunnel construction, in order to ensure construction efficiency, a construction inclined shaft is first excavated to the location of the main tunnel. Then, the main tunnel is divided into multiple construction sections, and excavation, support and lining operations are carried out simultaneously from each section, thereby improving the efficiency of tunnel construction.

[0003] In the existing technology, since the inclined shaft of the tunnel is the first to be excavated, in order to ensure air circulation in the construction tunnel, an exhaust fan is installed outside the entrance of the inclined shaft. The output end of the exhaust fan is connected to an air duct, which extends into the construction tunnel to ensure air circulation in the construction tunnel.

[0004] However, due to the existence of multiple tunnel construction sections, exhaust fans need to be connected to multiple air ducts. As the construction stage changes, it is impossible to adjust the ventilation volume of each air duct; moreover, the layout and installation of multiple air ducts are quite complicated. Utility Model Content

[0005] The purpose of this utility model is to provide a long-distance ventilation chamber for tunnels, so as to alleviate the technical problems in the prior art of ventilation of long-distance construction tunnels, such as the inability to control the air volume of air ducts at multiple construction ends and the cumbersome installation of multiple air ducts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In the first aspect, this utility model provides a long-distance ventilation chamber for tunnels, including a chamber structure and a fan structure. The chamber structure is installed inside the main tunnel of the external tunnel lining structure, and the chamber structure includes a chamber shell connected by multiple chamber shell units.

[0008] The air chamber shell is provided with a first external interface and a second external interface, and both the first external interface and the second external interface are provided with the fan structure;

[0009] The first external interface is used to connect with the tunnel inclined shaft of the tunnel lining structure through the corresponding fan structure;

[0010] The second external interface is used to connect with the tunnel cross passage of the tunnel lining structure through the corresponding fan structure.

[0011] Furthermore, the air chamber structure also includes two air chamber end caps, which are located at the ends of the air chamber shell.

[0012] Furthermore, the bottom of the air chamber end cover is provided with an end cover bracket, which is used to be installed inside the tunnel main opening and is supported at the bottom of the air chamber end cover.

[0013] Furthermore, the ventilation structure also includes a support bracket, which is provided in multiple ways, and each of the support brackets is connected to the ventilation housing. The support bracket is used to connect the ventilation housing to the inner wall of the tunnel main opening.

[0014] Furthermore, the support bracket includes a fixing member and a bracket member, the fixing member being used to connect with the inner wall of the tunnel main opening;

[0015] The bracket is detachably connected to the fixing member, and the bracket is supported and connected to the bottom of the air chamber shell.

[0016] Furthermore, the fan structure includes a connecting pipe and a fan assembly, one end of which is connected to the air chamber shell via the connecting pipe.

[0017] Furthermore, the fan assembly includes a fan body and a fan support, with one end of the fan body connected to the connecting pipe;

[0018] The fan support is connected to the fan body, and the fan support is used to connect to the tunnel lining structure.

[0019] Furthermore, the fan body includes a pipe and a fan, with the fan disposed within the pipe;

[0020] One end of the pipe is connected to the connecting pipe, and the outer wall of the pipe is connected to the fan bracket.

[0021] Furthermore, the wind turbine support includes a support bracket and a support leg, the support bracket being connected to the pipe body;

[0022] One end of the support leg is connected to the support bracket, and the other end is used to support the ground of the tunnel lining structure.

[0023] Furthermore, the fan structure also includes an air inlet pipe, which is connected to the end of the pipe body opposite to the connecting pipe.

[0024] This utility model can achieve the following beneficial effects:

[0025] In a first aspect, this utility model provides a long-distance ventilation chamber for tunnels, including a chamber structure and a fan structure. The chamber structure is installed inside the main tunnel of the external tunnel lining structure, and the chamber structure includes a chamber shell connected by multiple chamber shell units. The chamber shell is provided with a first external interface and a second external interface, both of which are provided with fan structures. The first external interface is used to connect with the tunnel inclined shaft of the tunnel lining structure through a corresponding fan structure. The second external interface is used to connect with the tunnel cross passage of the tunnel lining structure through a corresponding fan structure.

[0026] In this invention, the tunnel lining structure includes a main tunnel, a tunnel inclined shaft, and a tunnel transverse passage connected to the main tunnel. In use, multiple individual ventilation chamber shells are sequentially connected to form a ventilation chamber shell, which can be connected by welding. The ventilation chamber shell is a tubular structure, and it has a first external interface at the tunnel inclined shaft. This first external interface is used to connect to a corresponding fan structure, allowing air from the tunnel inclined shaft to be drawn into the ventilation chamber structure through this fan structure. Similarly, the ventilation chamber shell has a second external interface at the tunnel transverse passage, which is also used to connect to a corresponding fan structure, allowing air from the tunnel transverse passage to be drawn into the fan structure through this fan structure.

[0027] Compared with the prior art, the long-distance ventilation chamber for tunnels provided by this utility model is formed by welding multiple single-shell ventilation chambers together to form a ventilation chamber shell, thereby overcoming the cumbersome installation of multiple square tubes; and a first external interface and a second external interface are opened at the corresponding positions of the ventilation chamber shell to realize the installation of fan structures in the tunnel inclined shaft and tunnel cross passage, and then realize air volume control through multiple fan structures, so as to achieve better air volume control effect.

[0028] In summary, this utility model at least alleviates the technical problems existing in the prior art, such as the inability to control the air volume of air ducts at multiple construction ends and the cumbersome installation of multiple air ducts in long-distance construction tunnel ventilation. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 A three-dimensional cross-sectional structural diagram of a long-distance ventilation chamber in a tunnel provided for an embodiment of this utility model;

[0031] Figure 2A two-dimensional cross-sectional view of a long-distance ventilation chamber in a tunnel provided for an embodiment of this utility model;

[0032] Figure 3 A three-dimensional structural diagram of a long-distance ventilation chamber in a tunnel provided for an embodiment of this utility model;

[0033] Figure 4 A partial structural cross-sectional view of the long-distance ventilation chamber in the tunnel provided in this embodiment of the utility model;

[0034] Figure 5 A bottom view of a long-distance ventilation chamber in a tunnel, provided as an embodiment of this utility model.

[0035] Icons: 1-Tunnel lining structure; 11-Tunnel inclined shaft; 12-Tunnel main tunnel; 13-Tunnel cross passage; 2-Ventilator structure; 21-Ventilator shell; 211-First external interface; 212-Second external interface; 22-Ventilator end cover; 221-End cover bracket; 23-Support bracket; 231-Fixed component; 232-Bracket component; 3-Fan structure; 31-Connecting pipe; 32-Fan assembly; 321-Fan body; 322-Fan bracket; 3221-Support bracket; 3222-Support leg; 33-Inlet pipe. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0043] Example 1

[0044] This embodiment provides a long-distance ventilation chamber for tunnels, as shown in the reference. Figure 1 and Figure 2 The long-distance ventilation chamber of the tunnel includes a ventilation chamber structure 2 and a fan structure 3. The ventilation chamber structure 2 is located inside the tunnel main opening 12 of the external tunnel lining structure 1, and the ventilation chamber structure 2 includes a ventilation chamber shell 21 formed by connecting multiple ventilation chamber shell units. The ventilation chamber shell 21 is provided with a first external interface 211 and a second external interface 212, and both the first external interface 211 and the second external interface 212 are provided with fan structures 3. The first external interface 211 is used to connect with the tunnel inclined shaft 11 of the tunnel lining structure 1 through the corresponding fan structure 3. The second external interface 212 is used to connect with the tunnel cross passage 13 of the tunnel lining structure 1 through the corresponding fan structure 3.

[0045] This utility model embodiment at least alleviates the technical problems existing in the prior art, such as the inability to control the air volume of air ducts at multiple construction ends and the cumbersome installation of multiple air ducts in long-distance construction tunnel ventilation.

[0046] In this embodiment of the invention, the tunnel lining structure 1 includes a tunnel main shaft 12, a tunnel inclined shaft 11, and a tunnel transverse passage 13 connected to the tunnel main shaft 12. In use, multiple ventilation chamber shells are sequentially connected to form a ventilation chamber shell 21, which can be connected by welding. The ventilation chamber shell 21 is a tubular structure, and it has a first external interface 211 at the tunnel inclined shaft 11. The first external interface 211 is used to connect to a corresponding fan structure 3, so that air from the tunnel inclined shaft 11 can be drawn into the ventilation chamber structure 21 through the fan structure 3. Similarly, the ventilation chamber shell 21 has a second external interface 212 at the tunnel transverse passage 13, which is used to connect to a corresponding fan structure 3, so that air from the tunnel transverse passage 13 can be drawn into the fan structure 3 through the fan structure 3.

[0047] Compared with the prior art, the long-distance ventilation chamber for tunnels provided in this embodiment of the utility model is formed by welding multiple single-shell ventilation chambers together to form a ventilation chamber shell 21, thereby overcoming the cumbersome installation of multiple square tubes; and a first external interface 211 and a second external interface 212 are opened at corresponding positions of the ventilation chamber shell 21 to realize the installation of fan structures 3 in the tunnel inclined shaft 11 and the tunnel cross passage 13, and then realize air volume control through multiple fan structures 3, so that the air volume control effect is better.

[0048] In an optional implementation of this embodiment, refer to Figure 2 The air chamber structure 2 also includes two air chamber end caps 22, which are located at the ends of the air chamber shell 21.

[0049] Specifically: the air chamber shell 21 is provided with air chamber end caps 22 at both ends, and the air chamber end caps 22 at both ends are respectively connected to the corresponding fan structure 3 to realize ventilation at both ends of the air chamber shell 21.

[0050] Furthermore, referring to Figure 3 The bottom of the ventilation chamber end cover 22 is provided with an end cover bracket 221. The end cover bracket 221 is used to be installed inside the tunnel main opening 12 and is supported on the bottom of the ventilation chamber end cover 22.

[0051] Specifically: the end cap bracket 221 is provided with two support legs, and a crossbeam is provided on the top of the two support legs. The top of the end cap bracket 221 is connected to the crossbeam of the end cap bracket 221, and the support legs of the end cap bracket 221 are supported on the ground of the tunnel.

[0052] In an optional implementation of this embodiment, refer to Figure 3 , Figure 4 and Figure 5 The ventilation structure 2 also includes a support bracket 23. Multiple support brackets 23 are provided, and each support bracket 23 is connected to the ventilation shell 21. The support bracket 23 is used to connect the ventilation shell 21 to the inner wall of the tunnel main tunnel 12.

[0053] Specifically, multiple support brackets 23 are provided, and the multiple support brackets 23 are distributed on both sides of the wind tunnel shell 21 along the extension direction of the wind tunnel shell 21. The support brackets 23 have an L-shaped structure, and the support brackets 23 on both sides are connected to the inner wall of the tunnel to support the bottom of the wind tunnel shell 21.

[0054] Furthermore, referring to Figure 4 The support bracket 23 includes a fixing member 231 and a bracket member 232. The fixing member 231 is used to connect with the inner wall of the tunnel main tunnel 12. The bracket member 232 is detachably connected to the fixing member 231 and is supported and connected to the bottom of the air chamber shell 21.

[0055] Specifically: the fastener 231 is fixed to the tunnel wall of the tunnel lining structure 1, and then the ventilation chamber shell 21 is raised to the predetermined position. After the ventilation chamber shell 21 is welded, the bracket 232 is connected to the fastener 231 by bolts to form a support bracket 23, so that multiple support brackets 23 can support and lift the ventilation chamber shell 21, thereby stabilizing the position of the ventilation chamber shell 21.

[0056] In an optional implementation of this embodiment, refer to Figure 4 The fan structure 3 includes a connecting pipe 31 and a fan assembly 32. One end of the fan assembly 32 is connected to the air chamber shell 21 through the connecting pipe 31.

[0057] Specifically: the connecting pipe 31 can be connected to the corresponding first external interface 211, second external interface 212 and air chamber end cover 22, while the other end of the connecting pipe 31 is provided with a fan assembly 32, which is used to exhaust air into the air chamber housing 21 through the connecting pipe 31 or to exhaust the air in the air chamber housing 21.

[0058] Furthermore, referring to Figure 4 The fan assembly 32 includes a fan body 321 and a fan bracket 322. One end of the fan body 321 is connected to the connecting pipe 31. The fan bracket 322 is connected to the fan body 321 and is used to connect to the tunnel lining structure 1.

[0059] Specifically: the fan body 321 is supported by the fan bracket 322, and the fan body 321 is used to exhaust air into or out of the connecting pipe 31; while the fan bracket 322 is supported on the tunnel floor and is detachably connected to the fan body 321.

[0060] Furthermore, referring to Figure 4 The fan body 321 includes a pipe body and a fan, with the fan housed inside the pipe body; one end of the pipe body is connected to the connecting pipe 31, and the outer wall of the pipe body is connected to the fan support 322.

[0061] Specifically: the fan is installed inside the pipe, and one end of the pipe is connected to the connecting pipe 31 so that the fan installed inside the pipe can blow air in the direction of the connecting pipe 31; and the outer wall of the pipe is detachably connected to the fan support 322 so that the fan can operate stably when in use.

[0062] Furthermore, referring to Figure 4 The fan support 322 includes a support bracket 3221 and a support leg 3222. The support bracket 3221 is connected to the pipe body. One end of the support leg 3222 is connected to the support bracket 3221, and the other end is used to support the ground of the tunnel lining structure 1.

[0063] Specifically: The bottom of the support bracket 3221 is provided with four support legs 3222, and the support bracket 3221 is used to support the bottom of the pipe body to prevent the connection between the fan body 321 and the connecting pipe 31 from becoming loose due to vibration when the fan is rotating.

[0064] In an optional implementation of this embodiment, refer to Figure 4 The fan structure 3 also includes an air inlet pipe 33, which is connected to one end of the pipe body away from the connecting pipe 31.

[0065] Specifically: the air inlet pipe 33 is connected to the end of the pipe body away from the connecting pipe 31, and the connection method between the air inlet pipe 33 and the pipe body can be welding.

[0066] During operation, the fan structure 3 located in the tunnel inclined shaft 11 draws in outside air when the external exhaust fan is activated, and the airflow is stored in the air chamber shell 21. When air needs to be supplied to a certain construction end, the fan structure 3 installed at the corresponding position is turned on. For example, if air needs to be supplied to the construction end of the tunnel cross passage 13, the fan body 321 of the fan structure 3 located in the tunnel cross passage 13 is turned on. At this time, the fan assembly 32 will draw air from the air chamber shell 21 and discharge it into the construction section of the tunnel cross passage 13 through the corresponding air inlet pipe 33, thus achieving the purpose of ventilating the designated construction end. When ventilation is needed at both ends of the construction end of the tunnel main tunnel 12, the fan structure 3 connected to the outside of the air chamber end cover 22 on both sides of the air chamber shell 21 is turned on, which can ventilate the construction sections at both ends of the tunnel main tunnel 12.

[0067] Compared to existing technologies where it is inconvenient to control the ventilation volume of a certain construction section, this utility model embodiment can achieve the same result by simply adjusting the working position of the corresponding fan structure 3 at the current location when it is necessary to control the ventilation volume of a certain section.

[0068] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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 or all 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 various embodiments of this utility model.

Claims

1. A long-distance ventilation chamber for tunnels, characterized in that, It includes a wind cell structure (2) and a wind turbine structure (3). The wind cell structure (2) is located in the tunnel main opening (12) of the external tunnel lining structure (1), and the wind cell structure (2) includes a wind cell shell (21) formed by connecting multiple wind cell shell units. The air chamber shell (21) is provided with a first external interface (211) and a second external interface (212), and both the first external interface (211) and the second external interface (212) are provided with the fan structure (3). The first external interface (211) is used to communicate with the tunnel inclined shaft (11) of the tunnel lining structure (1) through the corresponding fan structure (3); The second external interface (212) is used to communicate with the tunnel cross passage (13) of the tunnel lining structure (1) through the corresponding fan structure (3).

2. The long-distance ventilation chamber in the tunnel according to claim 1, characterized in that, The air chamber structure (2) also includes two air chamber end caps (22), which are located at the ends of the air chamber shell (21).

3. The long-distance ventilation chamber in the tunnel according to claim 2, characterized in that, The bottom of the air chamber end cover (22) is provided with an end cover bracket (221), which is used to be installed inside the tunnel main opening (12) and is supported at the bottom of the air chamber end cover (22).

4. The long-distance ventilation chamber in the tunnel according to claim 1, characterized in that, The air chamber structure (2) also includes a support bracket (23), which is provided in multiple ways, and each of the support brackets (23) is connected to the air chamber shell (21). The support bracket (23) is used to connect the air chamber shell (21) to the inner wall of the tunnel main tunnel (12).

5. The long-distance ventilation chamber in the tunnel according to claim 4, characterized in that, The support bracket (23) includes a fixing member (231) and a bracket member (232), wherein the fixing member (231) is used to connect to the inner wall of the tunnel main tunnel (12); The bracket (232) is detachably connected to the fixing member (231), and the bracket (232) is supported and connected to the bottom of the air chamber shell (21).

6. The long-distance ventilation chamber in the tunnel according to claim 1, characterized in that, The fan structure (3) includes a connecting pipe (31) and a fan assembly (32), one end of which is connected to the air chamber shell (21) through the connecting pipe (31).

7. The long-distance ventilation chamber in the tunnel according to claim 6, characterized in that, The fan assembly (32) includes a fan body (321) and a fan bracket (322), one end of which is connected to the connecting pipe (31); The fan support (322) is connected to the fan body (321), and the fan support (322) is used to connect to the tunnel lining structure (1).

8. The long-distance ventilation chamber in the tunnel according to claim 7, characterized in that, The fan body (321) includes a pipe and a fan, wherein the fan is disposed in the pipe; One end of the pipe is connected to the connecting pipe (31), and the outer wall of the pipe is connected to the fan bracket (322).

9. The tunnel long-distance ventilation chamber according to claim 8, characterized in that, The fan bracket (322) includes a support bracket (3221) and a support leg (3222), wherein the support bracket (3221) is connected to the pipe body; One end of the support leg (3222) is connected to the support bracket (3221), and the other end is used to support the ground of the tunnel lining structure (1).

10. The long-distance ventilation chamber in the tunnel according to claim 8, characterized in that, The fan structure (3) also includes an air inlet pipe (33), which is connected to one end of the pipe body away from the connecting pipe (31).

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