CN218912938U - Tunnel ventilation system - Google Patents
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- CN218912938U CN218912938U CN202223454051.0U CN202223454051U CN218912938U CN 218912938 U CN218912938 U CN 218912938U CN 202223454051 U CN202223454051 U CN 202223454051U CN 218912938 U CN218912938 U CN 218912938U
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Abstract
The utility model relates to the technical field of tunnel construction, in particular to a tunnel ventilation system. The system comprises a wind bin assembly, an air inlet assembly, a first air supply assembly, a second air supply assembly, a first return air assembly and a second return air assembly. Through the arrangement of the air supply air passage and the air return air passage can be preferably realized.
Description
Technical Field
The utility model relates to the technical field of tunnel construction, in particular to a tunnel ventilation system.
Background
The primary problem faced by railway construction in plateau areas is the special climatic conditions of high cold, high altitude and low air pressure. In the construction of high altitude tunnels, the most important difficulty is the safety of constructors, and although plateau residents are adapted to the labor operation in the special environment of the plateau, the plateau is wide in land and thin in labor force, a large number of constructors in the construction of the high altitude tunnels come from plain areas, and the constructors need to face the same construction environment problems in the construction of the same plain tunnels, such as mechanical noise, dust generated by blasting, harmful gas and other conventional problems, and the work efficiency of the constructors is seriously affected by high-cold hypoxia. Particularly, severe hypoxia can lead constructors to generate severe altitude reaction, induce engineering safety accidents and seriously influence the smooth operation of construction.
In addition, in the tunnel construction process, the concentration of harmful gas, dust and the like in the tunnel needs to be controlled, so ventilation design is needed. Considering the current tunnel construction, firstly, an inclined shaft is excavated, and then a positive hole is excavated, so that a ventilation system and a ventilation method of the whole tunnel construction process are required to be designed.
Disclosure of Invention
The present utility model provides a tunnel ventilation system that overcomes some or all of the shortcomings of the prior art.
A tunnel ventilation system according to the present utility model, comprising,
the wind bin assembly is arranged on the upper layer of the tunnel and is positioned at the intersection of the inclined hole and the positive hole, a closed wind bin is formed in the wind bin assembly, and the wind bin is provided with a wind bin air inlet area positioned at the inclined hole, a wind bin first air outlet area positioned in the large mileage direction of the positive hole and a wind bin second air outlet area positioned in the small mileage direction of the positive hole;
the air inlet assembly is communicated with the air inlet area of the air bin and the outside and is used for conveying outside air into the air bin;
the first air supply assembly comprises a first air supply pipeline connected with a first air outlet area of the air bin through a first axial flow fan, and the first axial flow fan is used for conveying air at the air bin to a large mileage face;
the second air supply assembly comprises a second air supply pipeline connected with a second air outlet area of the air bin through a second axial fan, and the second axial fan is used for conveying air at the air bin to the small mileage face; and
the first return air assembly comprises a first jet fan, the second return air assembly comprises a second jet fan, the first jet fan and the second jet fan are respectively located at the large mileage face and the small mileage face and are both located at the lower layer of the tunnel, and the first jet fan and the second jet fan are used for respectively promoting air circulation at the large mileage face and the small mileage face to the intersection of the inclined hole and the positive hole.
Through the arrangement of the air supply air passage and the air return air passage can be better realized; specifically, at the air supply path, outside air can be conveyed to the air bin assembly through the air inlet assembly, and then two branches are formed through the first air supply assembly and the second air supply assembly and are respectively conveyed to the large mileage face and the small mileage face; simultaneously, through the setting of first return air subassembly and second return air subassembly, can realize the discharge of air to the external world in the tunnel preferably to realize the setting of return air wind way. Through the arrangement, ventilation arrangement in the tunnel construction process is preferably ensured.
Preferably, a flow guide assembly is arranged in the wind bin, and comprises a flow guide plate and a third jet fan; the guide plate is used for separating the first air outlet region of the air bin from the second air outlet region of the air bin, and is configured to enable the first air outlet region of the air bin and the second air outlet region of the air bin to form a first air outlet region air inlet and a second air outlet region air inlet with the air inlet region of the air bin respectively; the third jet fan is provided with 2 air inlets which are respectively arranged at the first air outlet area and the second air outlet area. Through the above, the air in the air bin can be better promoted to flow to the first air supply assembly and the second air supply assembly, so that the ventilation effect can be better promoted.
Preferably, the wind bin assembly comprises a baffle plate and a baffle plate, wherein the baffle plate is used for forming the bottom surface of the wind bin, and the baffle plate is used for plugging the air inlet area of the wind bin, the first air outlet area of the wind bin and the open end of the second air outlet area of the wind bin.
Through the structure, the wind bin can be built better.
Preferably, the partition plate is fixed by a bracket arranged at the side wall of the tunnel, and the bracket is fixed by an anchor. The installation of the partition plate can be preferably realized.
Preferably, the partition plate comprises a frame made of I-steel, a plurality of supporting beams made of channel steel are arranged at the frame, and a plate body is laid at the frame. Thus, the preparation of the separator is preferably realized.
Preferably, the air inlet assembly comprises an air inlet axial flow fan and an air inlet pipeline, and the air inlet axial flow fan is used for conveying outside air to an air inlet area of the air bin through the air inlet pipeline. So that the transportation of the outside air from the inclined hole is preferably realized.
Preferably, the air inlet axial flow fan is elevated through the fan bracket, and the air inlet pipeline is reinforced through the sling. So the fixed arrangement of the air inlet axial flow fan and the air inlet pipeline is preferably realized.
Preferably, the fan bracket comprises a rectangular door frame, and an arched beam is arranged above the inner part of the rectangular door frame. The construction of the fan bracket is preferably realized.
The utility model also provides a tunnel ventilation method which realizes ventilation in tunnel construction through any one of the tunnel ventilation systems. Ventilation of the tunnel can be preferably realized.
Drawings
FIG. 1 is a schematic diagram of the piping of the tunnel oxygen supply system in example 1;
fig. 2 is a schematic layout view of the main oxygen supply pipe in embodiment 1;
fig. 3 is a plan view schematically showing the arrangement of the restroom oxygen supply conduit 310 in embodiment 1;
fig. 4 is a schematic longitudinal sectional view showing the arrangement of the restroom oxygen supply conduit 310 in embodiment 1;
FIG. 5 is a schematic cross-sectional view showing the arrangement of the restroom oxygen supply conduit 310 in example 1;
FIG. 6 is a schematic cross-sectional view showing the arrangement of oxygen pipes on a lining-cutting trolley in example 1;
fig. 7 is a schematic view of a longitudinal section of an oxygen therapy piping arrangement of the lining-cutting trolley in example 1;
FIG. 8 is a schematic cross-sectional view of the oxygen therapy piping arrangement of the cloth hanging trolley of example 1;
fig. 9 is a schematic view of a longitudinal section of the oxygen supply pipeline arrangement of the cloth hanging trolley in embodiment 1;
fig. 10 is a schematic cross-sectional view showing the arrangement of the oxygen therapy pipeline of the excavation trolley in embodiment 1;
fig. 11 is a schematic view of a longitudinal section of an oxygen therapy pipeline arrangement of an excavating trolley in embodiment 1;
FIG. 12 is a schematic view showing the deployment of the tunnel oxygen supply system in example 1 in actual use;
fig. 13 is a schematic layout view of a tunnel ventilation system in embodiment 2;
FIG. 14 is a schematic view showing the arrangement of a wind bin in embodiment 2;
fig. 15 is a schematic view showing the arrangement of the separator in embodiment 2;
fig. 16 is a schematic structural view of a separator in embodiment 2;
FIG. 17 is a schematic view showing the arrangement of the air intake assembly in embodiment 2;
FIG. 18 is a schematic view showing the structure of a fan bracket in embodiment 2;
fig. 19 is a schematic diagram showing the arrangement of the inclined hole construction stage in example 2.
Detailed Description
For a further understanding of the present utility model, the present utility model will be described in detail with reference to examples. It is to be understood that the examples are illustrative of the present utility model and are not intended to be limiting.
Example 1
In view of fig. 1, the present embodiment provides a tunnel oxygen supply system, which includes,
an oxygen generating device 110 provided at the tunnel portal for providing oxygen enriched air;
an oxygen supply main pipe 120 arranged along a tunnel excavation direction for delivering oxygen-enriched air into the tunnel;
a restroom oxygen supply conduit 310 disposed at the restroom for delivering oxygen enriched air thereto;
a lining trolley oxygen delivery pipe provided at the lining trolley 130 for delivering oxygen-enriched air to the lining trolley 130;
the cloth hanging trolley oxygen delivery pipeline is arranged at the cloth hanging trolley 140 and is used for delivering oxygen-enriched air to the cloth hanging trolley 140; and
an excavation trolley oxygen delivery conduit disposed at the excavation trolley 150 for delivering oxygen enriched air to the excavation trolley 150.
Through the structure, the characteristics of complex construction in the tunnel and large oxygen supply required by mechanical personnel can be better aimed at, the feasible and stable oxygen supply in the tunnel can be better realized, the construction efficiency is improved, and the physical health of the constructors and the normal construction of the tunnel are ensured.
In this embodiment, the pressure swing adsorption oxygen plant 110 is used as the oxygen plant 110. So that the supply of oxygen enriched air can be preferably realized.
In this embodiment, the pressure swing adsorption oxygen plant 110 can directly employ an existing PSA-series oxygen generator.
As seen in fig. 2, the main oxygen supply pipe 120 is provided along the tunnel sidewall and is made of stainless steel pipe. So that the rich air can be better conveyed.
Referring to fig. 3-5, the rest room oxygen supply pipeline 310 is connected to the main oxygen supply pipeline 120 through a three-way joint 320 and a valve 330, and a plurality of mask type oxygen inhalation ports 410 are arranged at the rest room oxygen supply pipeline 310. Through the arrangement, the emergency shelter can be provided for constructors under the condition that air in the tunnel is polluted.
The mask oxygen inhalation port 410 is used for providing an interface for the existing oxygen inhalation mask device, and the valve 330 is arranged to close the oxygen supply pipeline 310 of the rest room when no person is in the rest room, so as to reduce the loss of oxygen enriched air.
As seen in fig. 6 and 7, the lining trolley oxygen therapy pipeline includes a lining trolley oxygen therapy main pipeline 610 arranged along a circumferential direction and a plurality of lining trolley oxygen therapy branch pipelines 620 arranged along a longitudinal direction, and the lining trolley oxygen therapy main pipeline 610 is connected to the oxygen supply main pipeline 120 through a first hose 630; the plurality of lining trolley oxygen therapy branch pipes 620 are connected to the lining trolley oxygen therapy main pipe 610, and a plurality of first oxygen supply interfaces 710 are formed at the lining trolley oxygen therapy branch pipes 620. Therefore, the oxygen supply to constructors at the lining trolley can be preferably realized.
The first oxygen supply interface 710 is used for providing an interface of an existing oral-nasal oxygen mask, and the oral-nasal oxygen mask is configured for a constructor, so that the oxygen-enriched air can be preferably supplied in real time by connecting the oral-nasal oxygen mask to the first oxygen supply interface 710 during construction.
As shown in fig. 8 and 9, the cloth hanging trolley oxygen therapy pipeline comprises a cloth hanging trolley oxygen therapy main pipeline 810 arranged along the circumferential direction and a plurality of cloth hanging trolley oxygen therapy branch pipelines 820 arranged along the longitudinal direction, wherein the cloth hanging trolley oxygen therapy main pipeline 810 is connected into the oxygen supply main pipeline 120 through a second hose 830; the plurality of hanging cloth trolley oxygen delivery branch pipelines 820 are connected to the hanging cloth trolley oxygen delivery main pipeline 810, and a plurality of second oxygen supply interfaces 910 are formed at the hanging cloth trolley oxygen delivery branch pipelines 820. So that the oxygen supply to constructors at the cloth hanging trolley can be preferably realized.
The second oxygen supply interface 910 is used for providing an interface of an existing oral-nasal oxygen mask, and the oral-nasal oxygen mask is configured for a constructor, so that the oxygen-enriched air can be preferably supplied in real time by connecting the oral-nasal oxygen mask to the second oxygen supply interface 910 during construction.
Referring to fig. 10 and 11, the excavation trolley oxygen therapy pipeline includes an excavation trolley oxygen therapy main pipeline 1010 disposed along a circumferential direction and a plurality of excavation trolley oxygen therapy branch pipelines 1020 disposed along a longitudinal direction, and the excavation trolley oxygen therapy main pipeline 1010 is connected to the oxygen supply main pipeline 120 through a third hose 1030; the plurality of excavation trolley oxygen therapy branch pipelines 1020 are connected into the excavation trolley oxygen therapy main pipeline 1010, and a plurality of oxygen diffusion openings 1130 are formed at the excavation trolley oxygen therapy branch pipelines 1020. Therefore, the oxygen supply to constructors at the digging trolley can be preferably realized.
In this embodiment, oxygen is supplied to the face construction area in a direct dispersion manner, so that the device can be better adapted to the characteristics of centralized face construction personnel, worse ventilation and farthest distance from the hole, and better oxygen-enriched air supply is realized.
Based on the system provided in this embodiment, this embodiment also provides a tunnel oxygen supply method, which is shown in fig. 12, and includes:
an oxygen plant installation area is arranged at the tunnel portal, and an oxygen plant 110 is arranged at the oxygen plant installation area to provide oxygen enriched air;
an oxygen supply main pipe 120 is arranged along the tunnel excavation direction (longitudinal direction) to carry out the transportation of oxygen enriched air into the tunnel;
at the lining construction completion area, rest rooms are arranged at intervals, and rest room oxygen supply pipelines 310 are arranged in the rest rooms;
a lining trolley oxygen delivery pipeline is arranged at a lining trolley construction area to provide oxygen-enriched air for constructors at the lining trolley;
arranging an oxygen transmission pipeline of the cloth hanging trolley at a construction area of the cloth hanging trolley so as to provide oxygen-enriched air for constructors at the cloth hanging trolley;
an excavation trolley oxygen delivery pipeline is arranged at the construction area of the face so as to provide oxygen-enriched air for constructors at the face.
By the method, the characteristics of different construction areas of the tunnel can be combined better, and the multi-azimuth and multi-form combined oxygen supply scheme is realized, so that the sufficient oxygen supply in the tunnel can be ensured better.
Wherein, the rest room can set up 1 every 500m, and can set up isolation curtain 420 between rest room and the tunnel.
In addition, in the inverted arch trolley construction area, the movable range of operators is large, so that independent oxygen supply can be realized by adopting portable oxygen generating equipment such as an oxygen bag, an oxygen tank and the like.
In addition, in the method of the present embodiment, it is also necessary to produce oxygenThe oxygen supply Q of the apparatus 110 is designed. Specifically, q=α×q * . Wherein α is a safety factor, which can be 1.2 in this embodiment; q (Q) * Is oxygen demand.
Wherein the oxygen demand Q * Can supply oxygen with dispersed oxygen demand Q at the working area of the face 1 And oxygen demand Q of operators in tunnels 2 Performing calculations, i.e. Q * ＝Q 1 +Q 2 。
Wherein, the liquid crystal display device comprises a liquid crystal display device,
the method comprises the steps of carrying out a first treatment on the surface of the Wherein V is F A% is the volume percent of the increase in oxygen content per hour of the region required to provide oxygen-enriched air, R 0 To provide the oxygen concentration (%), K at the outlet of the main oxygen supply pipe 120 1 Is a spatial tightness correction coefficient.
In the embodiment, taking the excavation area of the face of 83.6 square meters as an example, when a 10m diffuse oxygen supply area is ensured, V F 836 cubic meters. Taking the example of an oxygen concentration of 11.93% at an altitude of 4500m and an oxygen concentration of 14.46% to be achieved, a% is 2.53%. R is R 0 Is a known value, taking 93% as an example; k (K) 1 Taking 1.67 as an example, Q 1 About 37.98 (m) 3 /h)。
Wherein, the liquid crystal display device comprises a liquid crystal display device,
wherein Q is R Oxygen consumption flow rate (m) per hour for single person 3 /h), in this example at 0.24m 3 The example is/h; n is n R The maximum number of operators in the tunnel is 48 operators in the embodiment; thus, Q 2 About 12.39 (m) 3 /h)。
By the system and the method in the embodiment, the full oxygen supply in the tunnel can be realized preferably through theoretical calculation.
Example 2
Referring to fig. 13 and 14, the present embodiment provides a tunnel ventilation system, which includes,
the wind bin assembly 1310 is arranged on the upper layer of the tunnel and is positioned at the intersection of the inclined hole and the positive hole, a closed wind bin 1410 is formed in the wind bin assembly 1310, and the wind bin 1410 is provided with a wind bin air inlet area 1311 positioned at the inclined hole, a wind bin first air outlet area 1312 positioned in the large mileage direction of the positive hole and a wind bin second air outlet area 1313 positioned in the small mileage direction of the positive hole;
an air intake assembly 1320, coupled to the ventilation chamber air intake area 1311 and the outside, for delivering outside air into the air chamber 1410;
a first air supply assembly 1330 including a first air supply duct 1332 connected to the first air outlet region 1312 of the air bin by a first axial fan 1331, the first axial fan 1331 being configured to deliver air at the air bin 1410 to a high mileage face;
a second air supply assembly 1340 including a second air supply duct 1342 connected to the second air outlet area 1313 of the air bin by a second axial fan 1341, the second axial fan 1341 for delivering air at the air bin 1410 to the low mileage face; and
the first return air assembly comprises a first jet fan 1333, the second return air assembly comprises a second jet fan 1343, the first jet fan 1333 and the second jet fan 1343 are respectively located at the large mileage face and the small mileage face and are both located at the lower layer of the tunnel, and the first jet fan 1333 and the second jet fan 1343 are used for respectively promoting air circulation at the large mileage face and the small mileage face to the intersection of the inclined tunnel and the positive tunnel.
Through the arrangement of the air supply air passage and the air return air passage can be better realized; specifically, at the supply air path, external air can be delivered to the air bin assembly 1310 by the air inlet assembly 1320, and then delivered to the large mileage face and the small mileage face respectively by two branches formed by the first air supply assembly 1330 and the second air supply assembly 1340; simultaneously, through the setting of first return air subassembly and second return air subassembly, can realize the discharge of air to the external world in the tunnel preferably to realize the setting of return air wind way. Through the arrangement, ventilation arrangement in the tunnel construction process is preferably ensured.
In this embodiment, a flow guiding component is disposed in the wind bin 1410, and the flow guiding component includes a flow guiding plate 1351 and a third jet fan 1352; the deflector 1351 is configured to partition the first air outlet region 1312 and the second air outlet region 1313 of the air cabin, and is configured such that the first air outlet region 1312 and the second air outlet region 1313 of the air cabin and the air inlet region 1311 of the air cabin form a first air outlet region air inlet 1361 and a second air outlet region air inlet 1362, respectively; the third jet fan 1352 has 2 and is disposed at the first air outlet area air inlet 1361 and the second air outlet area air inlet 1362 respectively.
By the above, the air in the air compartment 1410 can be better promoted to flow to the first air supply assembly 1330 and the second air supply assembly 1340, so that the ventilation effect can be better promoted.
In this embodiment, the wind bin assembly 1310 includes a partition plate 1420 and a baffle 1430, where the partition plate 1420 is used to form a bottom surface of the wind bin 1410, and the baffle 1430 is used to seal the open ends of the wind bin air inlet area 1311, the wind bin first air outlet area 1312, and the wind bin second air outlet area 1313.
By the above, the wind bin 1410 can be preferably built.
As seen in fig. 15, the bulkhead 1420 is secured by brackets 1510 provided at the tunnel side walls, the brackets 1510 being secured by anchors 1520. The mounting of the partition 1420 can be preferably accomplished.
Referring to fig. 16, the partition 1420 includes a frame 1610 made of i-steel, a plurality of support beams 1620 made of channel steel are disposed at the frame 1610, and a plate 1630 is laid at the frame 1610. The preparation of the partition 1420 is preferably accomplished.
As seen in fig. 17, the air intake assembly 1320 includes an air intake axial fan 1710 and an air intake duct 1720, the air intake axial fan 1710 being configured to deliver ambient air through the air intake duct 1720 to the air intake area 1311 of the air bin. So that the transportation of the outside air from the inclined hole is preferably realized.
In this embodiment, the inlet axial fan 1710 is elevated by a fan bracket 1740 and the inlet conduit 1720 is reinforced by a sling 1730. The fixing arrangement of the air inlet axial flow fan 1710 and the air inlet pipe 1720 is preferably realized.
As seen in fig. 18, the fan bracket 1740 includes a rectangular door frame 1810 with an arched beam 1820 disposed inwardly above the rectangular door frame 1810. The configuration of blower bracket 1740 is preferably implemented.
In addition, the embodiment also provides a tunnel ventilation method, which realizes ventilation in tunnel construction through the tunnel ventilation system. Ventilation of the tunnel can be preferably realized.
The tunnel ventilation method in this embodiment specifically includes the following.
1. Inclined hole construction stage
Referring to fig. 19, at this time, a fan bracket 1740 is first erected, and then the air inlet axial flow fan 1710 and the air inlet pipe 1720 are laid, and in this stage, the air inlet pipe 1720 is lengthened along with the construction progress of the inclined hole;
2. positive tunnel construction stage
After the construction of the intersection of the inclined hole and the main hole is completed, the air bin assembly 1310 is arranged, the air inlet assembly 1320 and the air bin assembly 1310 are assembled, and then the first air supply assembly 1330, the second air supply assembly 1340, the first air return assembly and the second air return assembly are paved along with the construction progress of the main hole.
Example 3
This example provides a tunnel gas supply system having the oxygen supply system of example 1 and the ventilation system of example 2.
It is to be understood that, based on one or several embodiments provided herein, those skilled in the art may combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments, which do not exceed the protection scope of the present application.
The utility model and its embodiments have been described above by way of illustration and not limitation, and the examples are merely illustrative of embodiments of the utility model and the actual construction is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.
Claims (8)
1. A tunnel ventilation system, characterized by: comprising the steps of (a) a step of,
the wind bin assembly (1310) is arranged on the upper layer of the tunnel and is positioned at the intersection of the inclined hole and the positive hole, a closed wind bin (1410) is formed in the wind bin assembly (1310), and the wind bin (1410) is provided with a wind bin air inlet area (1311) positioned at the inclined hole, a wind bin first air outlet area (1312) positioned in the positive hole in the large mileage direction and a wind bin second air outlet area (1313) positioned in the positive hole in the small mileage direction;
an air intake assembly (1320) communicating the air intake area (1311) of the air compartment with the outside for delivering outside air into the air compartment (1410);
a first air supply assembly (1330) including a first air supply duct (1332) connected to the first air outlet region (1312) of the wind bin by a first axial flow fan (1331), the first axial flow fan (1331) being configured to deliver air at the wind bin (1410) to a high mileage face;
a second air supply assembly (1340) including a second air supply duct (1342) connected to the second air outlet region (1313) of the air bin by a second axial fan (1341), the second axial fan (1341) for delivering air at the air bin (1410) to the low mileage face; and
the first return air assembly comprises a first jet fan (1333), the second return air assembly comprises a second jet fan (1343), the first jet fan (1333) and the second jet fan (1343) are respectively located at the large mileage face and the small mileage face and are both located at the lower layer of the tunnel, and the first jet fan (1333) and the second jet fan (1343) are used for respectively promoting air circulation at the large mileage face and the small mileage face to the intersection of the inclined tunnel and the positive tunnel.
2. A tunnel ventilation system according to claim 1, characterized in that: a flow guide assembly is arranged in the wind bin (1410) and comprises a flow guide plate (1351) and a third jet fan (1352); the deflector (1351) is used for isolating a first air outlet region (1312) of the air bin and a second air outlet region (1313) of the air bin, and is configured such that the first air outlet region (1312) of the air bin and the second air outlet region (1313) of the air bin and the air inlet region (1311) of the air bin form a first air outlet region air inlet (1361) and a second air outlet region air inlet (1362) respectively; the third jet fan (1352) has 2 and locates first air-out area air intake (1361) and second air-out area air intake (1362) department respectively.
3. A tunnel ventilation system according to claim 1, characterized in that: the wind bin assembly (1310) comprises a baffle plate (1420) and a baffle plate (1430), wherein the baffle plate (1420) is used for forming the bottom surface of the wind bin (1410), and the baffle plate (1430) is used for blocking the opening ends of the wind bin air inlet area (1311), the wind bin first air outlet area (1312) and the wind bin second air outlet area (1313).
4. A tunnel ventilation system according to claim 3, characterized in that: the bulkhead (1420) is secured by brackets (1510) provided at the tunnel side walls, the brackets (1510) being secured by anchors (1520).
5. A tunnel ventilation system according to claim 3, characterized in that: the partition plate (1420) comprises a frame (1610) made of I-steel, a plurality of supporting beams (1620) made of channel steel are arranged at the frame (1610), and a plate body (1630) is paved at the frame (1610).
6. A tunnel ventilation system according to claim 1, characterized in that: the air inlet assembly (1320) comprises an air inlet axial flow fan (1710) and an air inlet pipeline (1720), wherein the air inlet axial flow fan (1710) is used for conveying external air to an air inlet area (1311) of the air bin through the air inlet pipeline (1720).
7. A tunnel ventilation system according to claim 6, characterized in that: the air inlet axial flow fan (1710) is elevated through a fan bracket (1740), and the air inlet pipeline (1720) is reinforced through a sling (1730).
8. A tunnel ventilation system according to claim 6, characterized in that: the blower bracket (1740) includes a rectangular door frame (1810) with an arched beam (1820) disposed inwardly above the rectangular door frame (1810).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202223454051.0U CN218912938U (en) | 2022-12-23 | 2022-12-23 | Tunnel ventilation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223454051.0U CN218912938U (en) | 2022-12-23 | 2022-12-23 | Tunnel ventilation system |
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| CN218912938U true CN218912938U (en) | 2023-04-25 |
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