KR20140025805A - The structure for for the pressure-drop prevention and low-maintenance in the ventilation shaft of the subway tunnel using guide vane - Google Patents

The structure for for the pressure-drop prevention and low-maintenance in the ventilation shaft of the subway tunnel using guide vane Download PDF

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Publication number
KR20140025805A
KR20140025805A KR1020120091946A KR20120091946A KR20140025805A KR 20140025805 A KR20140025805 A KR 20140025805A KR 1020120091946 A KR1020120091946 A KR 1020120091946A KR 20120091946 A KR20120091946 A KR 20120091946A KR 20140025805 A KR20140025805 A KR 20140025805A
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KR
South Korea
Prior art keywords
tunnel
guide vane
vertical ventilation
main
ventilation mechanism
Prior art date
Application number
KR1020120091946A
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Korean (ko)
Inventor
장용준
Original Assignee
한국철도기술연구원
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Priority to KR1020120091946A priority Critical patent/KR20140025805A/en
Publication of KR20140025805A publication Critical patent/KR20140025805A/en

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ventilation (AREA)

Abstract

The present invention relates to a pressure drop prevention and maintenance structure through the installation of guide vanes in the vertical ventilation mechanism of the urban main ship tunnel; A guide vane is provided for guiding air in the airflow of the vertical ventilation mechanism that penetrates in the vertical direction between the ceiling tunnel and the ground on which the railroad vehicle moves.
According to the present invention, by installing a guide vane inside the airway of the urban railway vertical ventilation port to prevent secondary flow and collision of the flow during the supply and exhaust, there is an effect of increasing the overall ventilation efficiency of the vertical ventilation mechanism. In addition, by coating a super water-repellent material on the guide vane inside the airway of the urban railway vertical ventilation port to suppress mold growth and prevent the accumulation of dust can significantly reduce the maintenance cost of the main tunnel ventilation port.

Description

{The structure for for the pressure-drop prevention and low-maintenance in the ventilation shaft of the subway tunnel using guide vane}

The present invention relates to a pressure drop prevention and maintenance structure through the installation of guide vanes in the vertical ventilation mechanism of the main railway tunnel of the urban railway, and more particularly, the supply and exhaust flow of the vertical ventilation holes installed in the main railway tunnel of the urban railway to circulate air. An urban railway main line that improves ventilation efficiency by preventing pressure drop of air flow due to secondary vortex caused by centrifugal force and impingement of flow in the inner wall of the wind in the air of the vertical vents during flow. The present invention relates to a pressure drop prevention and maintenance structure through the installation of guide vanes in the vertical ventilation of the tunnel.

In general, a main ship tunnel such as a subway road is provided with a ventilator for forcibly exhausting the air inside the tunnel to the outside and forcing the outside air into the main ship tunnel to keep the air inside the tunnel uncontaminated.

An example of such a ventilator is shown in Fig. According to this, a plurality of vertical ventilation mechanisms 10 are formed in the underground main tunnel 1 in which the subway or the like moves, passing through the main tunnel 1 and the ground 2, and the air flow rate of the vertical ventilation mechanism 10 is increased. In the 11), the fan 20 driven by the power supply is provided, respectively.

At this time, the vertical ventilator 10 is installed with a ventilator 20 so that the wind flows into the main ship tunnel 1 performs the function of the air supply, and the ventilator so that the wind escapes to the outside of the main ship tunnel 1 20 is installed in the vertical ventilation mechanism 10 to perform the function of the exhaust port, the air supply and the exhaust port is appropriately installed in consideration of the conditions of the main tunnel (1) and the ground (2).

Such a ventilation device typically drives the fan 20 to force air from the main ship tunnel 1 to the inside of the tunnel in the air supply port, and to force the air inside the ship tunnel 1 to the outside at the exhaust port. By evacuating, the air inside the main ship tunnel 1 to which the railroad car 3, such as a subway, moves is maintained in an uncontaminated state.

By the way, as shown in FIG. 2, the conventional urban railway vertical ventilation mechanism 10 has the inside of the air vent 11 at the bent portion of the air flow 11 when the air supply and exhaust flows at a right angle. In the secondary vortex 12 and impingement 13 of the flow on the inner wall 11 of the air flow 11 due to the centrifugal force, a pressure drop of the air flow occurs. Not enough air is supplied for the purpose of design, and the air supplied to the main ship tunnel 1 loses the flow momentum (momentum), thereby deteriorating fire decompression ability. That is, in the conventional urban railway vertical ventilation mechanism 10, the pressure drop and the loss of momentum of the flow are severely generated in the airway 11, so that sufficient supply of air to the main ship tunnel 1 is insufficient, and the smoke can be smoked. There is a problem in protecting passengers in an emergency due to the lack of momentum.

In addition, the existing urban railway vertical ventilation mechanism (10) is always present because the moisture is easy to grow mold fungi should be performed periodically and continuously such as management.

Therefore, the present invention is to solve these problems, the present invention is to install the guide vane (Guide Vane) inside the airway of the vertical ventilation port of the subway railway main line, secondary flow (secondary vortex) by the centrifugal force and the inner wall (11) The guide vane in the vertical ventilation system of the urban railway main tunnel, which supplies the required air volume and the momentum of the flow into the main railway tunnel of the urban railway, by preventing the flow impingement, thereby reducing the pressure drop. The purpose is to provide a pressure drop prevention and maintenance structure through installation.

In addition, in the present invention, since the interior of the vertical ventilation mechanism is always a hotbed of fungus bacteria, the surface of the guide vane is coated with a super water-repellent material, so that moisture or water droplets do not form, and the guide vane surface is cleaned so that the dust does not adhere well. The purpose is to provide a pressure drop prevention and maintenance structure through the installation of guide vanes in the vertical ventilation system wind tunnel of the urban railway main tunnel, which can greatly reduce the management cost.

In order to solve such a technical problem,

A guide vane for guiding air in the wind of the vertical ventilation mechanism penetrating in a vertical direction between the ceiling tunnel through which the railroad moves and the ground is provided in the vertical ventilation mechanism of the urban railway main tunnel. Provide vane prevention and maintenance structure through vane installation.

At this time, the vertical ventilation mechanism is formed in the bent direction change section for changing the supply and exhaust direction in the wind, characterized in that the direction change section is provided with one or more curved guide vanes.

And, the surface of the guide vane is characterized in that the superhydrophobic coating.

In addition, the fan is characterized in that the fan is installed.

In particular, the ventilator is driven by the control of the control means when the railroad vehicle is detected in the sensing means for detecting the railroad vehicle.

And, the control means is provided in the ground control room is characterized in that for controlling the fans of the plurality of vertical ventilation mechanisms individually.

In addition, the main ship tunnel is characterized in that it comprises a low-depth railway tunnel.

According to the present invention, by installing a guide vane inside the airway of the urban railway vertical ventilation port to prevent secondary flow and collision of the flow during the supply and exhaust, there is an effect of increasing the overall ventilation efficiency of the vertical ventilation mechanism.

In particular, the present invention can install a relatively low-capacity ventilator by increasing the ventilation efficiency through the installation of the guide vanes to reduce the load burden on the vertical ventilation mechanism, and furthermore can drive a low-capacity ventilator to save electrical energy. have.

In addition, by coating a super water-repellent material on the guide vane inside the airway of the urban railway vertical ventilation port to suppress mold growth and prevent the accumulation of dust can significantly reduce the maintenance cost of the main tunnel ventilation port.

FIG. 1 is a view showing a state in which a vertical vent is installed in a conventional urban railway main line tunnel.
FIG. 2 is a view illustrating a secondary flow and a flow collision phenomenon in the wind velocity of a conventional general vertical ventilation mechanism.
3 is a view showing a guide vane installation structure in the wind of the vertical ring mechanism of the urban railway main ship tunnel according to the present invention.
Figure 4 is a view showing for explaining the characteristics and micro-structure of the super water-repellent material coated on the guide vane surface installed in the vertical ventilation mechanism of the main railway tunnel according to the present invention.
5 is a control configuration diagram of the blowing fan installed in the vertical ventilation mechanism of the urban railway main ship tunnel according to the present invention.

With reference to the accompanying drawings, the pressure drop prevention and maintenance structure through the installation of the guide vane in the vertical ventilation mechanism wind tunnel of the urban railway main ship according to the present invention will be understood by the embodiments described in detail below.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

3 to 5, the vertical ventilation mechanism 100 of the main railway tunnel in accordance with the present invention is a centrifugal force in the airway (102) inside the vertical one mechanism during the air supply and exhaust of the air in the main ship tunnel (1) By preventing secondary impingement (flow tex) and flow impingement to the inner wall of the wind (102) by blocking the pressure drop reduction to increase the ventilation efficiency and reduce the capacity of the ventilator (200), energy consumption can be reduced Can be.

The vertical ring mechanism 100 of the urban railway main line tunnel according to the present invention connects through the main line tunnel 1 and the ground 2 through which the railroad vehicle 3 such as a subway moves in the vertical direction.

A plurality of vertical vents 100 are installed along the main tunnel 1 and ventilators 200 are installed in the vertical vents 100 for supplying or exhausting air in the main tunnel 1.

In particular, the present invention is a secondary flow (by secondary) by centrifugal force in the airway 102 of the vertical ventilation mechanism 100 when exhausting the air in the main ship tunnel (1) to the outside or supplying the outside air into the main ship tunnel (1) At least one guide vane 110 is provided on the vortex and the inner wall 102 of the air to guide the air to prevent impingement of the flow.

At this time, the main tunnel 1 includes a low-depth urban railway tunnel.

Hereinafter, the present invention will be described in more detail.

First, the ventilator 200 is installed in the vertical ventilation mechanism 100 installed along the main tunnel 1 for the air supply and exhaust of the air in the main tunnel 1.

At this time, the fan 200 is installed on the inner upper portion of the vertical ventilation mechanism (100).

On the other hand, the vertical ring mechanism 100 has a bent direction changing section 103 for changing the supply and exhaust direction in the airway 102 as a whole. Due to the diverter 103, the diverter unit may be configured to prevent secondary vortex due to centrifugal force and flow impingement of the inner wall of the wind turbine 102 due to the centrifugal force in the wind turbine exhaust 102. 103 is provided with one or more curved guide vanes 110 to guide the air to be supplied and exhausted.

As shown in FIG. 3, only two places of the turning unit 103 are shown in the wind duct 102, but the turning unit 103 may be formed in various forms according to the installation environment and design of the vertical ventilation mechanism. It is obvious that an appropriate number of guide vanes 110 may be installed depending on the number.

The vertical ventilation mechanism 100 provided with the guide vane 110 as described above eliminates the secondary flow of the flow and the collision impact of the flow in the airway 102 to prevent the pressure drop inside the airway and is sufficient in the main tunnel 1. Air volume and momentum can be supplied.

On the other hand, the guide vane 110 is installed in the airway 102 of the vertical ventilation hole 100 is coated with a superhydrophobic material on the surface of the water droplets even when supplying high humidity air to the guide vane 110 ) Does not form on the surface of the dust and dust does not accumulate.

Referring to FIG. 4, the drawing of the super water-repellent material coated on the surface of the guide vane 110 is a photograph which can confirm the effect of the lotus leaf, and the drawing on the right is enlarged to explain the microstructure. You can see it through the photo. Referring to this, by performing the coating of the super water-repellent material coated on the surface of the guide vane 110, the water droplets do not form on the surface like the lotus leaf effect, and dust does not accumulate, and thus prevents the growth of the fungus bacteria, thus maintaining the vertical ventilation holes 100. Maintenance cost can be reduced.

In addition, the present invention is the exhaust efficiency due to congestion due to the flow bottleneck of the air in the process of entering the inlet portion of the vertical ventilation mechanism 100 from the ceiling in the main ship tunnel 1 during the exhaust of the air in the main ship tunnel 1 to the outside In order to prevent the reduction of the inlet and the ceiling surface of the vertical ventilation mechanism 100 is preferably connected in a streamlined form.

On the other hand, when the ventilator 200 is installed in the upper portion of the air freshness 102 of the vertical ventilation mechanism 100 and driven, the vertical ventilation mechanism for supplying air forcibly introduces outside air from the ground 2 into the main tunnel 1. In the exhaust vertical ventilation mechanism, the air inside the main ship tunnel 1 is forced to exhaust to the outside so that the air inside the main ship tunnel 1 is not contaminated.

In this case, it is also possible to carry out the air circulation inside the main tunnel 1 through the continuous operation of the exhaust fan 200, but if the railway vehicle 3 reaches a certain section passing and passing so that the exhaust fan 200 can be driven. Control boxes are also possible.

To this end, the sensing means 120 for detecting the railroad vehicle 3 and the control means for controlling the fan 200 of the vertical ventilation mechanism 100 to be driven when the railroad vehicle 3 is detected by the sensing means 120. 130 is provided.

At this time, the sensing means 120 is made of, for example, an infrared sensor, a plurality of installed in the main tunnel 1 to maintain a predetermined interval when the railroad vehicle (3) is moved if the control means 130 The driving of the exhaust fan 200 of the vertical ventilation mechanism 100 installed on the top of the main tunnel (1) in which the railway vehicle (3) moves to ensure a smooth air circulation.

Such control means 130 is provided in the ground control room (not shown) to individually control the ventilator 200 of the plurality of vertical ventilation mechanisms 100 to detect the position of the railway vehicle (3).

Of course, without receiving a separate sensing means 120, the control unit 130 wirelessly receives the train position information wirelessly transmitted from the on-vehicle control device (not shown) of the railway vehicle 3 (not shown) It is also possible to control to drive or stop by receiving the train location information and control the ventilator 200 of the vertical ventilation mechanism 100 according to the position information.

Hereinafter, with reference to Figures 3 to 5 will be described an operation example for preventing and maintaining the pressure drop through the installation of the guide vane in the vertical ventilation mechanism wind tunnel of the main railway line according to the present invention.

When the railway vehicle 3 moves the main ship tunnel 1, the sensing means 120 installed in the main ship tunnel 1 detects the position of the railway vehicle 3, and the control means 130 accordingly to the detection information. Accordingly, the fan 200 of the vertical ventilation mechanism 100 at a position close to the railway vehicle is controlled and driven.

Accordingly, the ventilator 200 is driven to exhaust the air inside the main ship tunnel 1 to the ground 2 or to supply air from the ground 2 to keep the air inside the main ship tunnel 1 unpolluted. do.

In this case, the air moving to the turning part 103 by the curved guide vane 110 installed in the airway 102 of the vertical ventilation mechanism 100 is secondary flow or flow inside the airway 102. This colliding phenomenon is eliminated to prevent the pressure drop inside the wind turbine 102, so that sufficient air volume and momentum can be supplied to the main tunnel 1, and the ventilation efficiency is high, and the surface of the guide vane 110 is super water-repellent. (superhydrophobic) is coated with a material that does not accumulate dust on the surface of the guide vane (110) even when supplying high-humidity air, and dust does not accumulate, which prevents the growth of mold bacteria, which is advantageous for the management of the vertical ventilation holes (100). Do.

While the present invention has been described in connection with what is presently considered to be preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: Main Tunnel 1a: Thousand Scene
2: ground 100: vertical vent
101: railroad car 102: wind
104: direction change unit 110: guide vane
120: detection means 130: control means
200: ventilator

Claims (7)

A guide vane for guiding air in the wind of the vertical ventilation mechanism penetrating in a vertical direction between the ceiling tunnel through which the railroad moves and the ground is provided in the vertical ventilation mechanism of the urban railway main tunnel. Preventing and maintaining pressure drop by installing vanes.
The method of claim 1,
The vertical ventilation mechanism has a bent direction changer for changing the direction of the supply and exhaust air in the wind direction, and the direction change part is provided with one or more curved guide vanes in the vertical ventilation mechanism of the main railway tunnel Pressure drop prevention and maintenance structure by installing guide vane.
The method of claim 1,
The surface of the guide vane is characterized in that the superhydrophobic coating (superhydrophobic) coating, characterized in that the pressure drop prevention and maintenance structure through the installation of the guide vane in the vertical ventilation mechanism of the main railway tunnel.
The method of claim 1,
The air flow is prevented from the pressure drop through the installation of the guide vane in the vertical ventilation mechanism of the main line tunnel of the urban railway main line, characterized in that the air vent is installed.
5. The method of claim 4,
The ventilator prevents and maintains the pressure drop through the installation of guide vanes in the vertical ventilation mechanism of the urban railway main tunnel, characterized in that driven by the control of the control means when the railway vehicle is detected by the sensing means for detecting the railway vehicle.

6. The method of claim 5,
The control means is provided in the ground control room to control the pressure drop through the installation of the guide vane in the vertical ventilation mechanism of the main railway tunnel of the urban railway main line, characterized in that to individually control the ventilation fan.
The method of claim 1,
The main ship tunnel includes a low-depth rail tunnel, the pressure drop prevention and maintenance structure through the installation of the guide vane in the vertical ventilation mechanism wind tunnel of the main road tunnel.
KR1020120091946A 2012-08-22 2012-08-22 The structure for for the pressure-drop prevention and low-maintenance in the ventilation shaft of the subway tunnel using guide vane KR20140025805A (en)

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KR1020120091946A KR20140025805A (en) 2012-08-22 2012-08-22 The structure for for the pressure-drop prevention and low-maintenance in the ventilation shaft of the subway tunnel using guide vane

Applications Claiming Priority (1)

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KR1020120091946A KR20140025805A (en) 2012-08-22 2012-08-22 The structure for for the pressure-drop prevention and low-maintenance in the ventilation shaft of the subway tunnel using guide vane

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112253212A (en) * 2020-10-21 2021-01-22 唐亚男 Air duct and cooling device with same
CN115031334A (en) * 2022-06-13 2022-09-09 杭州欣电互联信息技术有限公司 Intelligent device for safe construction of limited closed space

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112253212A (en) * 2020-10-21 2021-01-22 唐亚男 Air duct and cooling device with same
CN115031334A (en) * 2022-06-13 2022-09-09 杭州欣电互联信息技术有限公司 Intelligent device for safe construction of limited closed space

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