KR101136990B1 - Apparatus for preventing spread of flame by air curtain and road structure using this - Google Patents

Abstract

The present invention relates to an air curtain type flame spread prevention device and a road structure using the same, and to prevent or delay the diffusion of smoke in the event of a fire in a closed structure, for example, underground roads to secure an evacuation time leisurely The purpose.
Air curtain type smoke diffusion prevention device according to the present invention, the base 10 is installed on a structure including a road; First and second ventilation chambers 20 and 30 formed separately from each other on the base and having first and second suction holes 21 and 31 and first and second injection holes 22 and 32 respectively along a longitudinal direction; First and second air blowing chambers installed along the longitudinal direction, respectively, while rotating by a motor, sucking air through the first and second suction holes, and spraying through the first and second injection holes to form an air curtain; It includes two cross flow fans (43, 44). In addition, the present invention includes a smoke removal shutter 50 is installed between the first and second ventilation chambers and spreads to the lower part in case of fire.

Description

Air curtain type smoke diffusion prevention device and road structure using same {APPARATUS FOR PREVENTING SPREAD OF FLAME BY AIR CURTAIN AND ROAD STRUCTURE USING THIS}

The present invention relates to an air curtain-type smoke diffusion prevention device, and more particularly, to form an air curtain on both sides of the front and rear of the fire point to prevent smoke diffusion, air curtain-type smoke that can prevent asphyxiation due to smoke in advance. It relates to a diffusion preventing device and a road structure using the same.

In recent years, in Korea, ground transportation has to be shifted to green and public transport centers, and underground road traffic alternatives for passenger cars have been prepared.

However, the underground road has to solve various problems due to the nature of being built underground, for example, there is a fire suppression and evacuation, ventilation, etc. in case of fire.

Current fire suppression and evacuation measures include fire hydrants and sprinkler systems, and specific techniques have not been proposed for evacuation measures.

For example, high-temperature fire smoke generated in a traffic accident fire in an underground road is ventilated through a ventilation duct located at an upper part of the underground road, and a ventilation hole is provided for each section to move the fire smoke to the upper ventilation duct. . However, there is a problem in that the smoke spreads quickly because all the fire smoke through the ventilation hole through the fire can not be exported to the ventilation duct. In addition, it is difficult to evacuate by obstructing the view of people as the fire smoke spreads through the tunnel in an instant and the evacuation time is long, and the toxic substance of the fire smoke spreads, and as a result of the suffocation due to the smoke, it is a problem that human life is caused. have.

The present invention is to solve the problems as described above, air curtain type smoke diffusion prevention device that can secure the evacuation time by blocking or delay the diffusion of the smoke when a fire occurs in a closed structure, for example, underground roads and the like; The purpose is to provide a road structure using the same.

Air curtain type smoke diffusion prevention device according to the present invention for achieving the object as described above, the base is installed on the structure including a road; First and second ventilation chambers formed on the base and separated from each other, and provided with first and second suction holes and first and second injection holes respectively in a longitudinal direction; First and second air blowing chambers installed along the longitudinal direction, respectively, while rotating by a motor, sucking air through the first and second suction holes, and spraying through the first and second injection holes to form an air curtain; It is characterized by including a two-cross flow fan.

In addition, the present invention is characterized in that it is installed between the first and second ventilation chambers and includes a smoke shutter to block the high-temperature smoke generated in the upper portion of the road unfolded in the event of fire.

The present invention, the case is provided with a space therein; A compressed air supply pipe arranged in one or more rows in the inner space of the case and supplied with compressed air; A plurality of air nozzles installed in the compressed air supply pipe and forming an air curtain by spraying compressed air transported along the compressed air supply pipe; An angle adjusting motor for adjusting an angle of the compressed air supply pipe; It is fixed to the case and characterized in that it comprises a guide for providing the direction of the compressed air injected from the air nozzle.

The road structure using the air curtain type smoke diffusion prevention device according to the present invention, the concrete box is a road built therein; A fire detection sensor installed at a predetermined interval along a driving direction of the concrete box and detecting a fire; A device for preventing diffusion of fumes installed at a predetermined interval along a traveling direction of the concrete box; And a controller for controlling the operation of the fire detection sensor and the smoke diffusion preventing device, wherein the diffusion preventing device is repeatedly mounted alternately with the fire detection sensor, and the controller detects the fire when detecting the fire of the fire detection sensor. It is characterized by controlling to form an air curtain in front and rear of the fire occurrence point by driving each of the smoke diffusion prevention device to the front and rear around the monitoring sensor.

According to the air curtain type smoke diffusion prevention device and the road structure using the same according to the present invention, the bidirectional cross flow fan according to the position of the fire to effectively prevent the high-temperature fire smoke layer (layer) layer formed on the upper part when the fire occurs in the underground road, etc. It is possible to reduce the spread of fire smoke and widen the view of the evacuators, and to minimize the suffocation of the evacuator, thereby reducing the casualties.

1 is a side view of an air curtain type smoke diffusion prevention device according to a first embodiment of the present invention.
Figure 2 is a front view of the air curtain type smoke diffusion prevention device according to a first embodiment of the present invention.
Figure 3 is a side view of the road structure using the air curtain type smoke diffusion prevention device according to a first embodiment of the present invention.
Figure 4 is a plan view of a road structure using the air curtain type smoke diffusion prevention device according to a first embodiment of the present invention.
5 is a side view of the air curtain type flame spread diffusion prevention device according to a second embodiment of the present invention.
Figure 6 is a side view of the road structure using the air curtain type smoke diffusion prevention device according to a second embodiment of the present invention.
Figure 7 is a partially cutaway perspective view of the air curtain type smoke diffusion prevention device according to a third embodiment of the present invention.
Figure 8 is an internal configuration of the air nozzle applied to the air curtain type flame spread diffusion prevention device according to a third embodiment of the present invention.
Figure 9 is an enlarged view of the injection hole applied to the air curtain type flame spread diffusion prevention device according to a third embodiment of the present invention.
Figure 10 is a side view of the main portion of the air curtain type smoke diffusion prevention device according to a third embodiment of the present invention.

≪ Example 1 >

As shown in Fig. 1 and Fig. 2, the air curtain type diffusion prevention device 100 according to the present embodiment, the base 10, each of the independent first and second suction ports 21 and 31 and the first and second injection ports ( 22 and 32 are provided along the longitudinal direction of the first and second ventilation chambers 20 and 30 and the first and second ventilation chambers 20 and 30 which are formed at a predetermined interval from each other on the base 10. It is comprised by the 1st, 2nd cross flow fan 23,33 which is provided and injects air and forms an air curtain.

The base 10 may be formed in a plate shape, for example, and is installed on a ceiling (wall surface, etc.) of a road structure (box) through various fixing devices such as bolts 11.

The first and second ventilation chambers 20 and 30 are provided with first and second suction holes 21 and 31 and first and second injection holes 22 and 32, respectively, and have first and second cross flow fans 23 and 33 therein. ) Is mounted to the base 10. The first and second ventilation chambers 20 and 30 are installed in the base 10 together with the control panel 40. The control panel 40 is disposed between the first and second ventilation chambers 20 and 30 in consideration of wiring and the like. Can be installed.

The first and second suction ports 21 and 31 and the first and second injection ports 22 and 32 are formed in the first and second blower chambers 41 and 42 along the length direction, and one of the first and the second blower chambers ( 20, 30 may be formed as a whole or a plurality may be formed at regular intervals.

The first and second suction ports 21 and 31 are supplied with compressed air or fresh air from the outside.

The first and second injection ports 22 and 32 are formed to be inclined downward in directions facing each other to form a strong air curtain. The first and second nozzles 22 and 32 are formed to be inclined downward in a direction facing each other to more effectively form an air curtain and to prevent diffusion of smoke when only one of the first and second cross flow fans 23 and 33 is driven. In detail, injecting air in a direction opposite to the direction in which the smoke spreads in the first and second cross flow fans 23 and 33 is effective for spreading the smoke, for example, a road structure. In the box, a plurality of air curtain type diffusion prevention devices 100 are installed at regular intervals, and the air curtain type diffusion prevention device 100 disposed on the left side around the fire occurrence point is the left side which injects air to the right side. Only the first cross flow fan 23 of the drive, the air curtain type flame spread prevention device 100 disposed on the right side drives only the second cross flow fan 33 of the right to inject air to the left, First and second is the only one of the cross-flow fan (23,33), driving is possible to prevent the spread of hwayeon by the injection direction of the air, such as.

The first and second cross flow fans 23 and 33 are installed in the first and second blower chambers 20 and 30, respectively, and are forced to blow air while being rotated by the power of the motor as a driving source.

As shown in FIG. 2, a plurality of second cross flow fans 33 may be installed in the second ventilation chamber 30 in series. Although not shown in the drawings, the first cross flow fan 23 is also installed in the same manner as the second cross flow fan 33.

The first and second cross flow fans 23 and 33 may be driven at the same time or any one of them may be selected and driven. For example, as described above, the air disposed on the left side of the fire point as viewed from the side is described. While operating only the first cross flow fan 23 disposed on the left side of the first and second cross flow fans 23 and 33 of the smoke diffusion preventing apparatus 100 of the road structure using the curtain to inject air in the direction of the fire point. The second cross flow fan 33 stops and is disposed on the right side among the first and second cross flow fans 23 and 33 of the apparatus for preventing diffusion of smoke using the air curtain disposed on the right side around the fire point. The first cross flow fan 23 is stopped while only the second cross flow fan 33 which injects air toward the fire point is operated. This is done through fire detection sensing and control of the control program.

The present invention may be applied to a warning means for outputting a warning sound and a warning light to guide the fire while forming the air curtain.

Hereinafter, a road structure equipped with a device for preventing diffusion of smoke using an air curtain according to the present invention will be described.

As shown in Figure 3 and 4, the road structure equipped with the air curtain type smoke diffusion prevention device according to the present invention, the fire detection sensor and the closed box (1) in which the road is built in more than one floor therein; It is installed together.

The fire sensor and the air curtain smoke diffusion prevention device 100 is installed repeatedly alternately. That is, the two flame spread prevention apparatuses 100 and one fire detection sensor therebetween are configured in one set and controlled by a controller. In other words, when a fire signal is applied from the fire detection sensor, the controller controls the driving of two smoke diffusion preventing apparatuses 100 which are close to the front and the rear of the fire detection sensor. Of course, the number of fire detection sensors installed in the two smoke diffusion prevention device is not limited to one, but two or more are possible.

Until now, it has been described that only two air curtain type diffusion prevention devices 100 disposed at both front and rear sides with respect to the fire detection sensor operate, but all the air curtain type diffusion prevention devices 100 can operate. (However, only one of the first and second cross flow fans 23 and 33 corresponding to the fire direction is selected and operated)

Although not shown in the drawings, the present invention may be provided with a ventilation port and a ventilation fan to prevent the diffusion of the smoke at the same time to quickly discharge the smoke in the space by the air curtain. The ventilation openings are disposed between the flame spread prevention devices 10, respectively, and the ventilation fan may operate normally and may not operate normally, but may operate under the control of the controller in case of fire.

In addition, an alarm that outputs a warning sound and a warning light in case of fire may be applied. The alarm is installed at a predetermined interval on the wall surface of the concrete structure 20.

According to the road structure equipped with the air curtain type smoke diffusion prevention device according to the present invention, the fire detection sensor adjacent to the fire occurrence point of the plurality of fire detection sensors during the fire detects the fire.

The controller receiving the fire signal from the fire detection sensor operates the flame spread prevention device 100 located at the front and the rear of the fire detection sensor, respectively.

The air is forcibly sucked and injected while driving only those corresponding to the left and right sides of the first and second cross flow fans 23 and 33 based on the fire point, thereby forming air curtains on both sides of the fire point.

The spread of smoke is delayed even if it cannot be spread elsewhere by the air curtain. Therefore, since there is almost no smoke outside the point of fire, choking on the smoke can be reduced.

In addition, since the air curtain does not obstruct the driver's view, the driver of the vehicle at the point of fire can bypass the point of fire and evacuate to a safe place quickly.

On the other hand, the present invention can be constructed in conjunction with the ventilation port 2 (usually composed of a ventilation fan (not shown) together with the ventilation port 2) formed in the box (1). That is, the air curtain type flame spread prevention device 100 is installed between the ventilation holes (2). Therefore, the controller drives the ventilation fan and the first and second cross flow fans 23 and 33 together in detecting the fire, and the air curtains are provided at both sides of the fire point by the first and second cross flow fans 23 and 33. In the formed state, the ventilation fan is quickly discharged through the vent (2).

In the case where the box 1 is composed of an upper layer and a lower layer, a ventilation duct may be formed at the upper part and the lower part of the lower layer. Therefore, in the event of a fire of the upper layer, Hwayeon is formed through the ventilation opening 2 formed in the ceiling. Ventilation duct is discharged, and in case of fire in the lower floor, the smoke is discharged to the ventilation duct in the lower floor through the ventilation hole formed at the bottom.

In addition, the air curtain can be formed in a single or double, and the air curtain layer and the fire suppression layer are composed by spraying a fire suppression material (water, air form, etc.) that can extinguish the fire other than air. You may. The fire suppression layer is realized by spraying a fire suppressor stored in a separate tank at a constant pressure.

<Example 2>

As shown in FIG. 5, the air curtain type flame spread prevention device 100 according to the present embodiment is installed between a pair of ventilation chambers 20 and 30 in Embodiment 2, and is driven during a fire to prevent diffusion of smoke. Smoke elimination shutter 50 is included.

The smoke elimination shutter 50 is wound and wound around a winding drum as a material having fire resistance and flexibility, and, of course, may extend to the road surface of the box 1 regardless of the garage.

The combustion shutter 50 may be automatically unfolded by, for example, the winding drum which is automatically rotated by an actuator such as a motor controlled by the controller in the event of a fire.

The dehumidification shutter 50 may be configured to be unfolded quickly by a weight body installed at an end thereof and not to be shaken by wind or the like.

On the other hand, in order to quickly evacuate the vehicle and enter the fire truck, etc. to eliminate the interference of the smoke emission shutter 50, the winding drum can be rotated in the direction of winding up the smoke release shutter by manual switch operation, and the evacuation of the vehicle and the occupant Previously, only the height of the garage or the passenger's height is installed so that the evacuation is completed without interfering with the evacuation of the vehicle and the occupant, and the road surface may be installed to block the spread of smoke. Of course, in order to reuse the ventilation shutter 50, the ventilation shutter 50 may be rewound and set to an initial position.

According to the present embodiment, in the event of fire, the first and second cross flow fans 23 and 33 are selectively driven to inject air, thereby forming an air curtain, and the smoke shutter 50 is spread out to form another curtain. do. The first and second cross flow fans 23 and 33 and the dehumidification shutters 50 are operated sequentially in a fire, that is, after the first or second cross flow fans 23 and 33 are operated first, the dehumidification shutters 50 are operated. Alternatively, the first or second cross flow fans 23 and 33 and the ventilation shutter 50 may be operated at the same time.

<Example 3>

As shown in FIG. 7, the air curtain type diffusion prevention device 100 according to the present embodiment has a space formed therein and is mounted in the box-shaped case 60 and the case 60 installed in the ceiling and the compressed air. Compressed air injection means for injecting.

The compressed air injection means is composed of a compressed air supply pipe 61 and an air nozzle 62.

The compressed air supply pipe 61 is a transport pipe that is mounted inside the case 60 and receives compressed air and transfers the compressed air to the air nozzle 62.

The compressed air supply pipe 61 is connected to the compressed air transmission pipe 63 so that compressed air can be supplied from the compressed air tank. The compressed air transmission pipe 63 may be connected to only one side of the compressed air supply pipe 61 so that the compressed air is supplied from one side of the compressed air supply pipe 61 to the other side, or alternatively, two places of the compressed air supply pipe 61. In connection with the above, the compressed air may be supplied simultaneously in two places of transportation of the compressed air supply pipe 61.

A plurality of air nozzles 62 are arranged in a line in the compressed air supply pipe 61, for example, and sprays compressed air transported along the compressed air supply pipe 61.

As shown in FIG. 8, the air nozzle 62 is composed of a nozzle body 64 connected to the compressed air supply pipe 61 and an injection body 65 connected to the nozzle body 64 and provided with an injection hole.

The nozzle body 64 is provided with a compressed air supply pipe 61 on one side and a joint 64a for screwing, for example, and a space in which the cross-sectional area is gradually increased from the joint 64a.

As shown in FIGS. 8 and 9, the injection body 65 jets a plurality of injection paths 65a for conveying compressed air introduced into the nozzle body 64 and compressed air transported along the respective injection paths 15a. It is made up of injection holes.

The injection port is composed of a plurality of second injection ports 65c formed in a cross-sectional area smaller than the first injection port 65a at the periphery of the first injection port 65b and the first injection port 65b in the center. The air injected through the second injection port 65c derives the effect of reducing the noise by reducing friction between the air injected through the first injection port 65b and the external air and reducing the friction with the external air.

The injection body 65 may be separated from the nozzle body 64 to be detachably coupled through the fastener, and thus, the size and quantity of the injection hole may be freely changed by replacing the injection body 65. have.

As such, the air nozzles 62 having a plurality of injection holes may be arranged in a row in order to form an air curtain. In this case, the compressed air transmission pipe 12a may be sprayed at a uniform amount of air from all the injection holes. The cross-sectional area of the injection port can be increased toward the injection port in the distance when the connection portion (compressed air is supplied to the compressed air supply pipe 61) of the base, otherwise connected to the compressed air supply pipe 61 is connected to the compressed air The cross-sectional area of the joint portion 64a of the supplied air nozzle 62 may be increased.

With such a basic configuration of the air curtain is configured to adjust the injection direction of the compressed air. For example, as shown in FIG. 7, an angle adjusting motor 67 is connected to one side of the compressed air supply pipe 61. Angle adjustment motor 67 is mounted on the motor mounting portion (60a) provided on one side of the case 60, the drive shaft (67a) may be directly connected to one side of the compressed air supply pipe 61 or via a gear or the like. That is, the drive shaft 67a of the angle adjustment motor 67 rotates in both directions to rotate the compressed air supply pipe 61 to adjust the angle of the air nozzle 62 mounted to the compressed air supply pipe 61.

Alternatively, a guide 66 (see FIG. 10) for adjusting the injection direction of the compressed air injected from the air nozzle 62 may be included as a method of adjusting the injection direction of the compressed air.

The guide 66 has a structure in which one side (injection direction of the compressed air) is opened to surround the air nozzle 62 and rotates by a motor to control the injection direction of the compressed air.

The compressed air supply pipe 61 is arranged in one or more rows in the case 60, and is mounted in two or more rows.

The action of the air curtain type smoke diffusion prevention device according to the present invention is as follows.

Compressed air stored in the compressed air tank is compressed air via the compressed air transmission pipe 63 through a pump (starts when the on signal of the air curtain is applied and stops when the off signal of the air curtain is applied). It is supplied to the supply pipe 61.

The compressed air supplied to the compressed air supply pipe 61 flows along the compressed air supply pipe 61 by pressure and then is supplied to the air nozzle 62.

The plurality of air nozzles 62 inject the supplied compressed air, respectively, and the compressed air divided into the plurality of injection paths 65a via the nozzle body 64 is provided through the first and second injection holes 65b and 65c. Since the cross-sectional area of the first injection port 65b is larger than that of the second injection port 65c, that is, the compressed air injected through the first injection port 65b and the air in the air, rather than the pressure difference, the second injection port 65c. Since the pressure difference between the air and the air is small, noise is reduced when the compressed air is injected.

That is, the compressed air injected through the second injection port 65c may be used to reduce noise, and the compressed air injected through the first injection port 65b may be used to form an air curtain.

100: flame spread prevention device,
10: base, 20, 30: 1st, 2nd ventilation room
21,31: 1st, 2nd inlet, 22,32: 1st, 2nd inlet
23,33: first and second cross flow fan,
40: control panel, 50: ventilation shutter
60: case, 61: compressed air supply pipe
62: air nozzle, 63: compressed air transmission pipe
64: nozzle body, 65: injection body

Claims (7)

delete delete delete delete A case 60 having a space formed therein;
A compressed air supply pipe (61) arranged in one or more rows in the inner space of the case and receiving and transporting compressed air;
A plurality of air nozzles (62) installed in the compressed air supply pipe and forming an air curtain by spraying compressed air transported along the compressed air supply pipe;
An angle adjustment motor 67 mounted to the case and having a drive shaft 67a fixed to one side of the compressed air supply pipe to adjust an angle of the compressed air supply pipe;
It is fixed to the case and includes a guide 66 for giving the direction of the compressed air injected from the air nozzle,
The air nozzle is provided with a joint portion 64a connected to the compressed air supply pipe in fluid communication at one side thereof, and a nozzle body 64 having a space in which a cross-sectional area is gradually increased from the joint portion, and at one side thereof. Comprising a plurality of injection passage (65a) is formed in communication with the space of the nozzle body is formed of the injection hole body 65 is formed with an injection hole for injecting compressed air supplied through the injection path to the end of the injection path,
The injection port comprises an air curtain type diffused diffusion comprising a central first injection port 65b and a plurality of second injection ports 65c formed on a circumference of the first injection port and having a smaller cross-sectional area than the first injection port. Prevention device. A closed box 1 having a road built therein;
A fire detection sensor installed at regular intervals along the driving direction of the box and detecting a fire;
An air curtain type flame spread prevention device according to claim 5, which is installed at regular intervals along the driving direction of the box;
It includes a controller for controlling the operation of the fire detection sensor and the air curtain type smoke diffusion prevention device,
The air curtain type smoke diffusion preventing device is repeatedly mounted alternately with the fire detection sensor, the controller is air curtain type smoke closer to the front and rear around the fire detection sensor when detecting the fire of the fire detection sensor. Road structures using an air curtain type smoke diffusion prevention device, characterized in that for driving the diffusion prevention device to control the air curtain to be formed before and after each fire occurrence point. The air curtain type smoke diffusion device of claim 6, wherein the air curtain type diffusion prevention device is repeatedly installed alternately with the ventilation hole 2 formed to communicate with the outside of the box so that the smoke is discharged through the ventilation hole. Road structures using diffusion barriers.

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