KR101745214B1

KR101745214B1 - Air curtain type fire smoke partition apparatus

Info

Publication number: KR101745214B1
Application number: KR1020150182694A
Authority: KR
Inventors: 김대영; 권갑근; 보라미 호르; 김지영
Original assignee: 현대건설주식회사
Priority date: 2015-12-21
Filing date: 2015-12-21
Publication date: 2017-06-09

Abstract

The present invention relates to an air curtain type flue gas diffusion preventing apparatus installed in a tunnel. A main firewall 400 and an auxiliary firewall 500 rotatably installed in the tunnel 10; Rotating means connected to the main firewall 400 to rotate the main firewall 400; A main air curtain part 200 provided in the main fire wall 400 and forming an auxiliary air curtain 250 and an auxiliary air curtain part 300 provided in the auxiliary fire wall 500 to form an auxiliary air curtain 350 / RTI >

Description

FIELD OF THE INVENTION [0001] The present invention relates to an air curtain-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for preventing flue gas diffusion, and more particularly to an apparatus for preventing flue gas diffusion in an air curtain.

Generally, tunnels have a long and tight structure, which is vulnerable to fire. Especially, in the case of a fire in a tunnel, there is a characteristic that fire smoke (hereinafter referred to as "fire smoke") propagates rapidly, and there is a risk of suffocating or inhaling smoke before a person evacuates. In order to prevent this, it is essential to install a ventilation system that prevents the propagation of smoke and a ventilation system that discharges the smoke to the outside.

To this end, there are classified type flue gas systems using jet fans, and cross flow type and semi-cross flow type flue gas systems using exhaust ducts and exhaust fans.

1 is a schematic view of a conventional cross-flow type smoke-freezing facility. 1, the flue gas 20 generated at the ignition point 30 in the tunnel 10 flows through the flue gas inlet 110 and the air outlet 60 of the duct 100 provided in the tunnel ceiling 50, . Since such a conventional cross-flow type smoke removal facility is located at the ceiling portion, there has been a limit in discharging only the fire smoke that rapidly diffuses in the closed tunnel structure to the ceiling portion facility. In addition, the spreading fire smoke affects the visual field and respiration of the big pizza, so that the evacuation time becomes longer, and the smokes caused by the fire smoke cause the life damage.

There is a disadvantage that installation of the exhaust port 60 is associated with civil engineering work to increase the construction cost.

Fig. 2 is a schematic view of a device for preventing flue gas diffusion using a conventional air curtain, which is used to solve such drawbacks. As shown in Fig. 2, an air curtain 90 which is discharged to the tunnel bottom 40 by using the jet fan 80 is used. However, in the conventional air curtain system as shown in FIG. 2, since the jet fan 80 is installed on the ceiling of the tunnel 10, a large capacity motor is required to form the air curtain to the tunnel bottom 40.

SUMMARY OF THE INVENTION Accordingly, it is a primary object of the present invention to provide an air curtain type flue gas diffusion preventing apparatus which has a good ventilation effect by combining a physical fire wall and an air curtain.

A second object of the present invention is to provide an air curtain type flue gas diffusion preventing device capable of generating a sufficient air curtain effect even with a small capacity motor because the air curtain generating device is located lower than the conventional one.

A third object of the present invention is to provide an air curtain type flameproof diffusion prevention device which is horizontally installed in a tunnel ceiling at normal times so as not to interfere with traffic and is rapidly rotated in the event of a fire to form a firewall and an air curtain .

In order to achieve the above-mentioned object, the present invention provides a communication system including a main firewall 400 rotatably installed in a tunnel 10; Rotating means connected to the main firewall 400 to rotate the main firewall 400; And a main air curtain part (200) installed in the main fire wall (400) to form a main air curtain (250).

The duct 100 may further include a duct 100 installed in the tunnel 10, and the main fire wall 400 and the rotating means may be installed in the duct 100.

In addition, the turning means includes a cable 130, one end of which is connected to the main firewall 400; It is possible to include a winch 125 installed in the duct 100 and connected to the other end of the cable 130 to pull the cable 130.

The main fire wall 400 and the duct 100 are connected to each other by a hinge 120 and the duct 100 is further provided with a smoke exhaust inlet 110.

An auxiliary firewall 500 slidably connected to the main firewall 400; And driving means for sliding-driving the auxiliary firewall 500. [

The auxiliary fire wall 500 has a pair of auxiliary fire walls 500 which are in close contact with both sides of the tunnel 100. The pair of auxiliary fire walls 500 are curved surfaces (520). The curved surface portion 520 may further include a first brush 510 for flameproofing.

The driving means includes a line rejection (640) installed in the auxiliary firewall (500); A belt 630 and pulleys 610 and 620 for sliding the row rejection 640 by a predetermined stroke; And a drive motor 600 for driving the pulley.

The auxiliary fire wall 500 is further provided with an auxiliary air curtain portion 300 for forming the auxiliary air curtain 350.

In addition, a roller housing 420 formed to extend from the main firewall 400 to allow the auxiliary firewall 500 to be slidable; A roller portion 530 installed at the lower end of the auxiliary firewall 500 and slidably received in the roller housing 420; And rollers 540, 550, 560 installed in the roller portion 530 and in contact with the inner surface of the roller housing 420.

Between the main firewall 400 and the auxiliary firewall 500, a second brush 410 for flameproof is further formed.

A pair of roller brackets 570 each extending and protruding from the main firewall 400 and the auxiliary firewall 500 to allow the auxiliary firewall 500 to be slidable; And a fourth roller 580 rotatably disposed between the pair of roller brackets 570.

A main air curtain suction port 200 connected to the main air curtain part 200 through the main fire wall 400 is further formed and an auxiliary air curtain suction port 200 passing through the auxiliary fire wall 500 and connected to the auxiliary air curtain part 300 An air curtain inlet 320 is further formed.

The above-described object of the present invention is also achieved by a first air curtain type flameproof diffusion preventing apparatus 710 described above as another embodiment. And a second air curtain type flue gas diffusion preventing device 720 having the same structure as the first air curtain type flue gas diffusion preventing device 710 and installed to be symmetrical with the first air curtain type flue gas diffusion preventing device 710 , And the first and second air curtain type anti-diffusion devices 710 and 720 are continuously installed in the tunnel 10 in pairs.

The plurality of first and second air curtain type diffusion preventing devices 710 and 720 can be independently controlled.

According to an embodiment of the present invention, the smoke-inducing effect is superior to the conventional art by combining a physical fire wall and an air curtain.

Further, since the air curtain generating device is positioned lower than the conventional one, there is an advantage that a sufficient air curtain effect can be generated even with a small-capacity motor.

In addition, it is possible to form a fire wall and an air curtain by swinging rapidly in the event of a fire without normally interfering with the passage by being installed horizontally in the tunnel ceiling at normal times.

Especially, since firewalls closely contact with the curved side of the tunnel, there is safety not to leak the fire.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further understand the technical idea of the invention. And should not be construed as interpreted.
1 is a schematic view of a conventional cross-flow type smoke-
FIG. 2 is a schematic view of an apparatus for preventing flue gas diffusion using a conventional air curtain,
FIG. 3 is a state of use of the air curtain type flue gas diffusion preventing apparatus according to the first embodiment of the present invention,
Fig. 4 is a state of use of the air curtain type flue gas diffusion preventing apparatus shown in Fig.
5 is a front view of an air curtain type flue gas diffusion preventing apparatus according to the first embodiment of the present invention,
Fig. 6 is a rear view of the air curtain type flue gas diffusion preventing apparatus shown in Fig. 5,
FIG. 7 is a state of use of a fire prevention apparatus for fire prevention of an air curtain type fire according to the first embodiment of the present invention,
8A is an enlarged cross-sectional view taken along line A-A in FIG. 7, in which the auxiliary firewall 500 is in a folded state,
FIG. 8B is an enlarged cross-sectional view taken along line A-A in FIG. 7, in which the auxiliary firewall 500 is in a deployed state,
Fig. 9 is an enlarged cross-sectional view of the portion B-B in Fig. 6,
10 is an enlarged cross-sectional view of a portion C-
11 is an enlarged cross-sectional view of a portion D-
FIG. 12 is a diagram showing a normal state of use of the air curtain type flue gas diffusion preventing apparatus according to the second embodiment of the present invention,
13 is a state of use of the air curtain type flue gas diffusion preventing apparatus shown in Fig.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings. While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and are herein described in detail.

It is noted that the terms "comprises" or "having" in this application are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Configuration of the first embodiment

FIG. 3 is a state view of the air curtain type flue gas diffusion preventing apparatus according to the first embodiment of the present invention, and FIG. 4 is a state of use of the air curtain type flue gas diffusion preventing apparatus shown in FIG. 3 and 4, the duct 100 of the predetermined space is provided along the tunnel longitudinal direction on the ceiling of the tunnel 10, and the smoke exhaust inlets 110 are formed at regular intervals in the duct 100 have.

The hinge 120 is connected to the duct 100 so that the air curtain type smoke prevention device 700 can be rotated between the normal use state and the fire use state. The upper end of the main firewall 400 is connected to the hinge 120, and the other end is a free end. 3, a main air curtain part 200 and an auxiliary air curtain part 300 are installed on one side of the main fire wall 400 between the main fire wall 400 and the duct 100 in a normal use state. The main air curtain part 200 is one with a relatively large capacity and the auxiliary air curtain part 300 is two with a relatively small capacity.

One end of the cable 130 is connected to the main firewall 400 and the other end is connected to the winch 125. The winch 125 is installed in the duct 100 and functions to unwind the cable 130 so that the air curtain type gallium diffusion preventive apparatus 700 is slowly lowered by its own weight and to wind up the cable 130 after use.

A small air blowing fan (not shown) and a driving motor (not shown) similar to those used in the indoor unit of the air conditioner are provided in the main air curtain part 200 and the auxiliary air curtain part 300, A large-capacity jet fan is not required.

5 is a front view of an air curtain type flue gas diffusion preventing apparatus according to the first embodiment of the present invention. As shown in FIG. 5, the main firewall 400 is in the shape of a rectangular plate, and is connected to the duct 100 through a pair of hinges 120 at the top. A main air curtain part 200 is provided at a lower portion of the main fire wall 400 along the lower end.

A pair of auxiliary firewalls (500) are slidably installed in the main firewall (400). That is, the pair of auxiliary firewalls 500 can be slid to the left and right with respect to the center of the main firewall 400, and the side surface is shaped to the inner wall of the tunnel 10 by forming the curved portion 520, Do not let this leak. The driving means of the auxiliary firewall 500 will be described in detail with reference to FIG.

Each of the auxiliary firewalls 500 is provided with one auxiliary air curtain portion 300 and is slid with the auxiliary firewall 500. The auxiliary air curtain portion 300 forms an air curtain at both ends of the main air curtain portion 200 that can not be covered by the main air curtain portion 200.

Fig. 6 is a rear view of the air curtain type flue gas diffusion preventing apparatus shown in Fig. 5. Fig. 6, a main air curtain suction port 220 is formed on the back of the main fire wall 400, and an auxiliary air curtain suction port 320 is formed on the back surface of each of the auxiliary fire wall 500. As shown in FIG. These suction ports 220 and 320 function to form a clean air curtain by sucking and discharging the air without the smoke. Since the air curtain portion 200 and the auxiliary air curtain portion 300 are provided with small air blowing fans (not shown) used in the indoor unit of the air conditioner, the shape and length of the air inlets 220, And corresponds to the shape of a fan (not shown).

FIG. 8A is an enlarged cross-sectional view taken along the line A-A in FIG. 7, and FIG. 8B is an enlarged cross-sectional view of the A-part of FIG. 7, in which the auxiliary firewall 500 is in a deployed state. 8A and 8B, a driving pulley 610 is connected to the driving motor 600 and a pulley 620 is connected to the driving pulley 610 through a belt 630. [ A row rejection 640 is connected to one side of the belt 630 so that the row rejection 640 is firmly fixed to the auxiliary firewall 500 to slide the auxiliary firewall 500.

9 is an enlarged cross-sectional view of the portion B- in Fig. As shown in FIG. 9, a side surface of the auxiliary firewall 500 forms a curved surface portion 520, and a plurality of first brushes 510 protrude from the curved surface portion 520. The first brush 510 serves to prevent the smoke from leaking between the curved surface portion 520 and the inner wall of the tunnel 10.

10 is an enlarged cross-sectional view of a portion C- in FIG. As shown in FIG. 10, a roller housing 420 protrudes from one side of the main firewall 400. The roller housing 420 is empty and can accommodate the roller portion 530 and is formed as a rail along the longitudinal direction of the main firewall 400.

A roller portion 530 is provided at the lower end of the auxiliary firewall 500 and the roller portion 530 is slidably received in the roller housing 420. The third roller 560 supports the load of the auxiliary fire wall 500 and guides the sliding of the auxiliary fire wall 500. The first and second rollers 540 and 550 move in the forward and backward directions of the auxiliary fire wall 500 . 10, only one roller is shown along the direction, but it is needless to say that a plurality of rollers can be installed along the sliding direction of the auxiliary firewall 500.

The roller housing 420, the roller portion 530, and the rollers 540, 550, and 560 may be replaced by bearings (not shown), which should also be construed as being included within the scope of the present invention.

In addition, a second brush 410 is placed between the main firewall 400 and the auxiliary firewall 500. The second brush 410 prevents the smoke from leaking into the gap between the main fire wall 400 and the auxiliary fire wall 500. In FIG. 10, the second brush 410 is installed in the main firewall 400, but the same effect can be obtained when the second brush 410 is installed in the auxiliary firewall 500.

11 is an enlarged cross-sectional view of a portion D- in Fig. 11, a pair of roller brackets 570 protrude from the main firewall 400 and the auxiliary firewall 500, respectively. The fourth roller 580 is placed between the pair of roller brackets 570 and is rotatable. The roller bracket 570 and the fourth roller 580 are installed in upper areas of the firewalls 400 and 500 to guide stable sliding without shaking of the auxiliary firewall 500. And, the roller bracket 570 and the fourth roller 580 can be replaced with bearings (not shown), which should also be construed as falling within the scope of the present invention.

Configuration of the second embodiment

FIG. 12 is a view showing the state of use of the air curtain type flue gas diffusion preventing apparatus according to the second embodiment of the present invention. As shown in Fig. 12, the second embodiment is constituted by first and second air curtain type anti-diffusion devices 710 and 720, and each of the first and second air curtain type anti-diffusion devices 710 and 720 Has the same configuration as that of the first embodiment described above.

The first and second air curtain type diffusion preventing devices 710 and 720 are installed in the duct 100 and are positioned in a symmetrical direction facing each other.

Although only the first and second air curtain type flue gas diffusion preventing devices 710 and 720 are shown in the second embodiment, the third and fourth air curtain type flue gas diffusion preventing devices 710 and 720 are disposed along the longitudinal direction of the tunnel 10 as shown in FIG. 730, and 740 are continuously and repeatedly installed.

The operation of the first embodiment

Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings.

3, 5, and 8A, a pair of auxiliary firewalls 500 are fixedly held in the horizontal direction on the ceiling of the tunnel 10 in a state of being collected in the center.

As shown in FIG. 4, when the fire occurs, the winch 125 is loosened, and the air curtain type flameproof diffusion preventing apparatus 700 is slowly lowered by its own weight around the hinge 120.

Then, when the driving motor 600 of FIG. 8A rotates to move the belt 630, the row rejection 640 moves and the sliding of the auxiliary firewall 500 starts. At this time, it is preferable that the pair of drive motors 600 start at the same time. The sliding continues until the auxiliary firewall 500 moves a predetermined distance or the curved portion 520 touches the inner wall of the tunnel. As shown in FIG. 7, the auxiliary firewall 500 is deployed on the left and right sides of the main firewall 400. At this time, the top surface of the tunnel 100 is clogged with the duct 100, and most of the cross section in the longitudinal direction of the tunnel is physically clogged by the main firewall 400 and the auxiliary firewall 500. However, the distance between the main firewall 400 and the tunnel bottom 40 is such that the distance between the person 5 and the vehicle 70 can be maintained. As will be described later, air curtains are formed at such intervals.

FIG. 7 is a state of use for use in a fire of an air curtain type flue gas diffusion preventing apparatus according to the first embodiment of the present invention. As shown in FIG. 7, when the main air curtain part 200 is operated, a main air curtain 250 is formed in a space between the main firewall 400 and the tunnel bottom 40. Since the interval is smaller than the height of the tunnel, the main air curtain portion 200 of small capacity may be used. Conventionally, since the air curtain has to be formed from the ceiling of the tunnel to the bottom, a large-capacity air curtain device or a jet fan has been required.

The auxiliary air curtain part (300) is movable from the left and right of the main air curtain part (200) to form an auxiliary air curtain (350). Because the auxiliary air curtain 350 has a smaller cover area, the auxiliary air curtain portion 300 may be equal to or smaller than the main air curtain portion 200.

Fig. 4 is a state of use of the air curtain type flue gas diffusion preventing apparatus shown in Fig. 3 when used in a fire. Clean air sucked from the main air curtain suction port 220 and the auxiliary air curtain suction port 320 is discharged to the tunnel bottom 40 to form the air curtain 190 as shown in FIG. do.

The flue gas 20 blocked by the air curtains 190, 250 and 350 is introduced into the duct 100 through the flue gas inlet 110 and is exhausted to the outside through the air outlet 60 by the flue gas fan 70. [ . Therefore, it is enough to install the smoke inlet port 110 at a predetermined interval in the duct 100 regardless of civil engineering work, and the exhaust port 60 may be installed at a minimum.

After the fire is extinguished and the situation is ended, the air curtains 200 and 300 are turned off and the winch 125 is wound to raise the air curtain type fire prevention device 700 to the ceiling.

Operation of the second embodiment

Hereinafter, a second embodiment of the present invention will be described with reference to the accompanying drawings. 13 is a state of use of the air curtain type flue gas diffusion preventing apparatus shown in Fig. As shown in FIG. 13, the first air curtain type smoke prevention device 710 is activated and the fourth air curtain type smoke prevention device 740 is operated around the ignition point 30. The flame generated by the air curtains 190 before and after the ignition point 30 is trapped between the first and fourth air curtain type flameproof diffusion preventing devices 710 and 740. Then, as described above in the first embodiment, the air is discharged through the smoke inlet port 110. At this time, the second and third air curtain type gallium diffusion preventing devices 720 and 730 are not used. That is, the use of the air curtain type flameproof diffusion prevention apparatus is determined according to the ignition point 30, and each air curtain type flameproof diffusion preventing apparatus is independently controlled.

Although the present invention has been described in connection with the preferred embodiments set forth above, it will be readily appreciated by those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention, It is obvious that all modifications are within the scope of the appended claims.

4: People,
7: Vehicle
10: Tunnels,
20: Harmony,
30: ignition point,
40: tunnel floor,
50: Tunnel ceiling,
60: exhaust port,
70: exhaust fan,
80: jet fan,
90: Air curtain,
100: duct,
110: exhaust inlet,
120: a hinge,
125: winch,
130: cable,
190: Air curtain,
200: main air curtain part,
220: Main air curtain inlet,
250: Main air curtain,
300: auxiliary air curtain part,
320: Auxiliary air curtain inlet,
350: auxiliary air curtain,
400: Primary firewall,
410: second brush,
420: roller housing,
500: secondary firewall,
510: first brush,
520: curved portion,
530: roller portion,
540: first roller,
550: second roller,
560: third roller,
570: Roller bracket,
580: fourth roller,
600: drive motor,
610: Driving pulley,
620: pulley,
630: belt,
640: Deny row,
700: Air curtain type flame prevention device,
710: First air curtain type flame prevention device,
720: second air curtain type flame prevention device,
730: Third air curtain type flame prevention device,
740: Fourth air curtain type flame prevention device.

Claims

A main firewall 400 rotatably installed in the tunnel 10;
Rotating means connected to the main firewall 400 to rotate the main firewall 400;
A main air curtain part 200 provided in the main fire wall 400 to form a main air curtain 250;
An auxiliary firewall 500 slidably connected to the main firewall 400; And
And driving means for slidingly driving the auxiliary fire wall (500).

The method according to claim 1,
Further comprising a duct (100) installed in the tunnel (10)
Wherein the main fire wall (400) and the pivoting means are installed in the duct (100).

3. The method of claim 2,
The rotating means
A cable 130, one end of which is connected to the main firewall 400;
And a winch 125 installed on the duct 100 and connected to the other end of the cable 130 to pull the cable 130. [

3. The method of claim 2,
The main fire wall 400 and the duct 100 are connected by a hinge 120,
Wherein the duct (100) is further provided with a smoke inlet (110).

delete

The method according to claim 1,
Wherein the auxiliary fire wall (500) is coupled to both sides of the tunnel (10).

The method according to claim 6,
Wherein the pair of auxiliary firewalls (500) further include a curved surface portion (520) shaped to fit on the sides of the tunnels so as to be in close contact with both sides of the tunnel (10).

8. The method of claim 7,
Wherein the curved surface portion (520) further comprises a first brush (510) for flameproofing.

The method according to claim 1,
The driving means includes:
A row deny 640 installed in the auxiliary firewall 500;
A belt 630 and pulleys 610 and 620 for sliding the row rejection 640 by a predetermined stroke; And
And a driving motor (600) for driving the pulleys.

The method according to claim 1,
Wherein the auxiliary fire wall (500) further comprises an auxiliary air curtain (300) for forming an auxiliary air curtain (350).

The method according to claim 1,
In order for the auxiliary firewall 500 to be slidable,
A roller housing 420 formed to extend from the main firewall 400;
A roller portion 530 installed at the lower end of the auxiliary firewall 500 and slidably received in the roller housing 420; And
And rollers (540, 550, 560) installed on the roller unit (530) and contacting the inner surface of the roller housing (420).

12. The method of claim 11,
And a second brush (410) for flameproof is further formed between the main fire wall (400) and the auxiliary fire wall (500).

The method according to claim 1,
In order for the auxiliary firewall 500 to be slidable,
A pair of roller brackets 570 protruding from the main firewall 400 and the auxiliary firewall 500, respectively;
And a fourth roller (580) rotatably disposed between the pair of roller brackets (570).

The method according to claim 1,
And a main air curtain suction port (200) connected to the main air curtain part (200) through the main fire wall (400) is further formed.

11. The method of claim 10,
And an auxiliary air curtain suction port (320) connected to the auxiliary air curtain part (300) through the auxiliary fire wall (500).

A first air curtain type zinc diffusion preventing device (710) according to any one of claims 1 to 4 and 6 to 15; And
A second air curtain type smoke prevention device 720 having the same structure as the first air curtain type smoke prevention device 710 and installed to be symmetrical with the first air curtain type smoke prevention device 710 Including,
Wherein the first and second air curtain type flameproof diffusion preventing devices (710, 720) are paired and installed continuously in the tunnel (10).

17. The method of claim 16,
Wherein the plurality of the first and second air curtain type diffusion preventing devices (710, 720) are independently controllable.