CN111677539A - Ventilation and cooling system based on high-ground-temperature tunnel - Google Patents
Ventilation and cooling system based on high-ground-temperature tunnel Download PDFInfo
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- CN111677539A CN111677539A CN202010485100.3A CN202010485100A CN111677539A CN 111677539 A CN111677539 A CN 111677539A CN 202010485100 A CN202010485100 A CN 202010485100A CN 111677539 A CN111677539 A CN 111677539A
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- tunnel
- wind
- main
- main tunnel
- air storage
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/003—Ventilation of traffic tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
- E21F1/085—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators using compressed gas injectors
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F3/00—Cooling or drying of air
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Abstract
The invention discloses an aeration cooling system based on a high-ground-temperature tunnel, wherein the high-ground-temperature tunnel comprises a main tunnel, an inclined shaft communicated with the main tunnel and a circuitous pilot tunnel communicated with the main tunnel; the wind power relay devices are arranged at equal intervals along the output direction of the wind storage device in the space of the main tunnel and are used for enabling wind power to be uniformly transmitted to each section of the main tunnel; and the cooling device is arranged in the air storage device and used for reducing the temperature of the wind power input into the air storage device. The invention has the technical effects of uniform ventilation of each construction operation surface of the tunnel and good cooling measures, and can be widely applied to the technical field of tunnel construction.
Description
Technical Field
The invention relates to the technical field of tunnel construction. More particularly, the present invention relates to an aeration cooling system based on a high ground temperature tunnel.
Background
With the vigorous development of railway tunnel industry, the problem of tunnel ventilation design has become an important issue of railway tunnel development, the railway tunnel ventilation design generally adopts two forms of natural ventilation and mechanical ventilation, and in the specific design, reasonable ventilation design is required according to actual conditions.
When the high-temperature construction environment passes through a high-ground-temperature area in the plateau underground engineering construction under special geographic and geological conditions, great influence is brought to constructors, and measures for comprehensively reducing the temperature and ensuring safe and efficient construction under the high-ground-temperature condition are very important.
Disclosure of Invention
The invention aims to provide an aeration and cooling system based on a high-ground-temperature tunnel, which can uniformly ventilate each construction working face of a main tunnel and has good cooling measures.
To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided an aeration cooling system for a high-ground temperature tunnel, the high-ground temperature tunnel including a main tunnel, an inclined shaft communicating with the main tunnel, and a detour pilot pit communicating with the main tunnel, the aeration cooling system including,
arranging a wind storage device at the communicated junction of the main tunnel and the inclined shaft, conveying wind power into the wind storage device through the inclined shaft, and outputting the wind power to the main tunnel through the wind storage device;
the wind power relay devices are arranged at equal intervals along the output direction of the wind storage device in the space of the main tunnel and are used for enabling wind power to be uniformly transmitted to each section of the main tunnel;
and the cooling device is arranged in the air storage device and used for reducing the temperature of the wind power input into the air storage device.
Preferably, the end of the wind storage device outputting wind power transmits the wind power to each segment of the main hole through a plurality of flexible wind pipes.
Preferably, the roundabout pit is provided with a plurality of through connection points along the length direction of the main tunnel, the flexible duct comprises a first duct which is arranged along the length of the roundabout pit, a branch duct is arranged at each connection point of the roundabout pit and the main tunnel in a communication manner, and an outlet of each branch duct is communicated with the main tunnel.
Preferably, a plurality of the wind relays include:
and each axial flow fan is correspondingly arranged on each section of the first air pipe corresponding to the branch pipe and used for uniformly conveying wind power to each section of the main tunnel.
Preferably, the wind storage device comprises:
the air storage chamber is a three-dimensional chamber with a sealing structure and is arranged on one side in the main hole;
the inside of the air storage chamber is supported by section steel, and the outside of the air storage chamber is formed by welding sealing steel plates.
Preferably, the cooling device comprises:
the water storage tank is arranged at the bottom in the air storage chamber;
and the refrigerating device is arranged in the air storage chamber in the direction close to the inclined shaft.
Preferably, the plurality of wind relays further comprises:
the jet flow fans are arranged on one side, far away from the air storage chamber, in the main tunnel at equal intervals, and the wind guiding direction of each jet flow fan is opposite to the direction of the air storage chamber and used for discharging high-temperature airflow in the main tunnel out of the main tunnel.
Preferably, the reservoir is provided with a water inlet pipeline communicated with the outside and used for delivering water;
the water outlet pipeline is arranged along the length direction of the main hole, is positioned on the segment in the main hole, and is provided with water outlet spray heads at equal intervals for spraying clean water into the main hole.
The invention at least comprises the following beneficial effects:
1. the ventilation effect is good, and a plurality of wind force relay devices are additionally arranged between the air storage chamber and the main tunnel, so that each construction working face in the high-ground-temperature tunnel keeps a uniform ventilation environment.
2. The cooling effect is good, and the temperature of the output wind power in the air storage chamber is reduced by arranging the water storage tank and the cooling device in the air storage chamber, so that the working environment of reducing the high temperature of the main tunnel is achieved.
3. The jet fans are arranged on all the sections in the main tunnel, and the guide direction of the jet fans is opposite to the direction of the air storage chamber, so that the circulation of the wind environment in the main tunnel is guided, and the good air environment in the main tunnel is further ensured.
4. The dust fall effect is good, and in extending to the main tunnel through setting up outlet conduit, and set up out the water shower nozzle along each festival section of outlet conduit, the water smoke that sprays has good dust fall effect.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of the structure of an aeration cooling system according to the present invention;
the specification reference numbers indicate: 1. the device comprises a main tunnel, 2, an inclined shaft, 3, a circuitous pilot tunnel, 4, an air storage chamber, 5, an axial flow fan, 6, a jet flow fan, 7 and a soft air pipe.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, the high-geothermal tunnel of the present invention comprises a main tunnel 1, an inclined shaft 2 communicated with the main tunnel 1, and a circuitous pit 3 communicated with the main tunnel 1, wherein the aeration and cooling system comprises,
arranging a wind storage device at the communicated junction of the main tunnel 1 and the inclined shaft 2, conveying wind power into the wind storage device through the inclined shaft 2, and outputting the wind power to the main tunnel 1 through the wind storage device;
the wind power relay devices are arranged at equal intervals along the output direction of the wind storage device in the space of the main tunnel 1 and are used for enabling wind power to be uniformly transmitted to each section of the main tunnel 1;
and the cooling device is arranged in the air storage device and used for reducing the temperature of the wind power input into the air storage device.
In the technical scheme, the inclined shaft 2 is used for continuously inputting wind power into the wind storage device, then the temperature of airflow is reduced through the cooling device in the wind storage device, and then the cooled airflow is input into the main tunnel 1, so that the internal temperature environment of the high-ground-temperature tunnel is reduced, the flowing air in the tunnel is formed, and a proper construction environment is further achieved;
the wind power relay devices are arranged at the positions of all sections of the main tunnel 1, when the wind power output is far away from a wind source, the wind speed of the wind power relay devices is inevitably reduced, and the wind power relay devices are installed once through presetting installation point positions of the wind power relay devices, so that the wind power output frequency in the tunnel is synchronous.
In another technical scheme, the end part of the wind storage device outputting wind power transmits the wind power to each segment of the main hole 1 through a plurality of flexible wind pipes 7.
In the above technical scheme, the flexible air pipe 7 has good ductility and is applicable to the effect of different terrains of each segment in the tunnel.
In another technical solution, the roundabout pit 3 is provided with a plurality of through connection points along the length direction of the main tunnel 1, the flexible duct 7 includes a first duct which is provided along the length of the roundabout pit 3 and is provided with a branch duct at each connection point between the roundabout pit 3 and the main tunnel 1, and an outlet of each branch duct is communicated with the main tunnel 1.
In another aspect, the plurality of wind force relay devices comprise:
and each axial flow fan 5 is correspondingly arranged on each section of the first air pipe corresponding to the branch pipe and used for uniformly conveying wind power to each section of the main tunnel 1.
In the technical scheme, the length of the roundabout pilot tunnel 3 is adapted to the length of a section under construction in the main tunnel 1, a first air pipe is arranged along the length direction of the roundabout pilot tunnel 3, communication points communicated with the roundabout pilot tunnel 3 are arranged according to the air volume required by each tunnel face in the main tunnel 1, each communication point forms a channel penetrating through the roundabout pilot tunnel 3 and the main tunnel 1, and each branch pipe is communicated with the first air pipe and the main tunnel 1 through the corresponding communication point;
wherein, each branch pipe and the channel of the corresponding communicating point of the circuitous pilot tunnel 3 have ventilation gaps, and the high-temperature airflow in the main tunnel 1 can flow back to the direction of the wind storage device through the gaps and then be discharged from the inclined shaft 2.
In another technical solution, the wind storage device includes:
the air storage chamber 4 is a three-dimensional chamber with a sealed structure and is arranged on one side in the main hole 1;
the inside of the air storage chamber 4 is supported by section steel, and the outside of the air storage chamber 4 is formed by welding sealing steel plates.
In another aspect, the cooling device includes:
the water storage tank is arranged at the bottom in the air storage chamber 4;
and the refrigerating device is arranged in the air storage chamber 4 in the direction close to the inclined shaft 2.
In the above technical solution, the construction of the air storage chamber 4 comprises the following steps:
s1, presetting the building area of the air storage chamber 4, and digging a water storage tank;
s2, building supporting section steel on the periphery of the water storage pool to form the outer contour of the air storage chamber 4;
s3, installing a refrigerating device at the air inlet of the air storage chamber 4;
s4, setting a fan platform at the air outlet of the air storage chamber 4 and installing a fan;
s, the outside of the outer contour of the wind storage chamber 4 is seal-welded with a steel plate in step S2 to form a sealed wind storage environment.
Wherein, dig and get the cistern and include, establish waterproof geotechnological cloth with the inside pad of cistern, prevent the seepage to and install outside inlet channel, conduit, the water pump of intercommunication.
Furthermore, the interior of the air storage chamber 4 is supported by section steel, the bottom and the top of the air storage chamber are supported transversely by I18 at a distance of 2m, and the total number of the air storage chambers is 32; the front part and the rear part adopt I18 steel for vertical support, the distance is 3m, and the total number is 22; the side parts adopt I18 steel as vertical supports, the distance is 1.5m, and the total number is 4; the interior of the steel tube is provided with I16 steel struts with a longitudinal distance of 3m, and the total number of the struts is 22.
Furthermore, the refrigerating device can select a plurality of high-power air conditioners as refrigerating sources.
In another technical solution, the plurality of wind power relay devices further include:
the jet flow fans 6 are arranged on one side, far away from the air storage chamber 4, in the main tunnel 1 at equal intervals, and the wind power guiding direction of each jet flow fan 6 is opposite to the air storage chamber 4, so that high-temperature air flow in the main tunnel 1 is discharged out of the main tunnel 1.
In the technical scheme, the airflow guiding direction of the plurality of jet flow fans 6 is opposite to the air storage direction of the air storage chamber 4, and the airflow guiding direction is used for replacing turbid high-temperature air in the main tunnel 1 to form a good indoor circulating air environment of the main tunnel 1.
In another technical scheme, the reservoir is provided with a water inlet pipeline communicated with the outside and used for delivering water;
the water outlet pipeline is arranged along the length direction of the main hole 1, is positioned on a segment in the main hole 1, and is provided with water outlet nozzles at equal intervals for spraying clean water into the main hole 1.
In the technical scheme, each segment of the water outlet pipeline is provided with a water blowing nozzle, the water blowing nozzles compress water flow into fine water mist, the fine water mist is sprayed into the main hole 1, and dust attached to the air falls to the ground, so that the dust falling purpose is achieved.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (8)
1. An aeration cooling system based on a high-ground-temperature tunnel, the high-ground-temperature tunnel comprises a main tunnel, an inclined shaft communicated with the main tunnel and a circuitous pilot tunnel communicated with the main tunnel, and is characterized in that the aeration cooling system comprises,
arranging a wind storage device at the communicated junction of the main tunnel and the inclined shaft, conveying wind power into the wind storage device through the inclined shaft, and outputting the wind power to the main tunnel through the wind storage device;
the wind power relay devices are arranged at equal intervals along the output direction of the wind storage device in the space of the main tunnel and are used for enabling wind power to be uniformly transmitted to each section of the main tunnel;
and the cooling device is arranged in the air storage device and used for reducing the temperature of the wind power input into the air storage device.
2. The high-geothermal tunnel-based aeration cooling system according to claim 1, wherein the wind-output end of the wind storage device delivers wind power to each segment of the main tunnel through a number of flexible ducts.
3. The high-geothermal-tunnel-based aeration and cooling system according to claim 1 or 2, wherein the roundabout pit is provided with a plurality of through connection points along the length direction of the main tunnel, the flexible duct comprises a first duct which is provided along the length direction of the roundabout pit and is provided with a branch duct in communication with each connection point of the roundabout pit and the main tunnel, and an outlet of each branch duct is communicated with the main tunnel.
4. The high ground temperature tunnel-based aeration cooling system of claim 1, wherein the plurality of wind relay devices comprise:
and each axial flow fan is correspondingly arranged on each section of the first air pipe corresponding to the branch pipe and used for uniformly conveying wind power to each section of the main tunnel.
5. The high-ground-temperature tunnel-based aeration cooling system according to claim 1, wherein the air storage device comprises:
the air storage chamber is a three-dimensional chamber with a sealing structure and is arranged on one side in the main hole;
the inside of the air storage chamber is supported by section steel, and the outside of the air storage chamber is formed by welding sealing steel plates.
6. The high-ground-temperature tunnel-based aeration cooling system according to claim 1 or 5, wherein the cooling device comprises:
the water storage tank is arranged at the bottom in the air storage chamber;
and the refrigerating device is arranged in the air storage chamber in the direction close to the inclined shaft.
7. The high ground temperature tunnel-based aeration cooling system of claim 1 or 5, wherein the plurality of wind relay devices further comprises:
the jet flow fans are arranged on one side, far away from the air storage chamber, in the main tunnel at equal intervals, and the wind guiding direction of each jet flow fan is opposite to the direction of the air storage chamber and used for discharging high-temperature airflow in the main tunnel out of the main tunnel.
8. The high-geothermal-tunnel-based aeration cooling system according to claim 6, wherein the reservoir has an inlet pipe communicating with the outside for water delivery;
the water outlet pipeline is arranged along the length direction of the main hole, is positioned on the segment in the main hole, and is provided with water outlet spray heads at equal intervals for spraying clean water into the main hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010485100.3A CN111677539A (en) | 2020-06-01 | 2020-06-01 | Ventilation and cooling system based on high-ground-temperature tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010485100.3A CN111677539A (en) | 2020-06-01 | 2020-06-01 | Ventilation and cooling system based on high-ground-temperature tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111677539A true CN111677539A (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010485100.3A Pending CN111677539A (en) | 2020-06-01 | 2020-06-01 | Ventilation and cooling system based on high-ground-temperature tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685219A (en) * | 2021-08-31 | 2021-11-23 | 中铁二院工程集团有限责任公司 | Tunnel press-in type ventilation relay system |
-
2020
- 2020-06-01 CN CN202010485100.3A patent/CN111677539A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685219A (en) * | 2021-08-31 | 2021-11-23 | 中铁二院工程集团有限责任公司 | Tunnel press-in type ventilation relay system |
| CN113685219B (en) * | 2021-08-31 | 2023-07-25 | 中铁二院工程集团有限责任公司 | Tunnel push-in type ventilation relay system |
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