KR102735539B1 - smoke extraction structure for fire fighting of buildings - Google Patents

Abstract

A fire-fighting smoke-proof structure for a building is disclosed. The fire-fighting smoke-proof structure for a building according to the present invention comprises: an opening/closing smoke barrier having one end axially connected to a ceiling and a locking opening provided in a widthwise recessed space in a passageway or a living space of a building so as to open/close the said ceiling downward; an upper smoke barrier made of a non-combustible or flame-retardant material, doubly bonded, and having a horizontal filling portion formed inside; and each of the vertical smoke barriers, which are made of the same material as the upper smoke barrier and have a region excluding the upper smoke barrier divided from top to bottom and doubly bonded, and have a vertical filling portion formed inside that is communicated with the horizontal filling portion; and an unfoldable smoke barrier, in which the upper smoke barrier is joined to the inner surface of the opening/closing smoke barrier in a rolled state. And it is characterized by including a fire water supply unit including a fire water tank provided on the upper part of the receiving space and storing fire water, at least one nozzle arranged in the horizontal filling section and connected to the fire water tank by a connecting pipe, and an opening/closing valve installed in the connecting pipe and operating to fill the fire water into each of the vertical filling sections through the horizontal filling section when the opening/closing smoke screen is unfolded due to a fire.

Description

Smoke extraction structure for fire fighting of buildings

The present invention relates to a fire-fighting ventilation structure for a building, and more specifically, to a fire-fighting ventilation structure for a building which, when a fire breaks out in a building, prevents flames and smoke including toxic gases from spreading from a space where a fire has broken out to a space where a fire has not broken out, and also allows evacuees escaping from a space where a fire has broken out to easily pass through or firefighters to enter a space where a fire has broken out without interference.

Typically, fires that occur inside a building are accompanied by smoke containing toxic gases, and the smoke from the fire has a greater impact on the evacuation of occupants than the fire itself.

For example, if a fire breaks out in a building, even if the fire does not spread to the upper floors, the smoke will rise rapidly, blocking people's escape routes or causing serious casualties due to suffocation. In particular, toxic gases generated during a fire can cause fatal injuries to the human body even if people are not directly exposed to the flames or heat.

As a means of solving these problems, smoke exhaust facilities and smoke removal facilities are installed in multi-story buildings for people's evacuation and fire fighting activities. Smoke exhaust facilities are facilities that discharge toxic gases including smoke caused by fire outside the building, and smoke removal facilities are facilities that prevent smoke from entering the escape route such as corridors, stairwells, anterooms, and offices when a fire occurs, and protect residents from harmful smoke, allowing them to evacuate safely and at the same time facilitating fire fighting activities.

The aforementioned smoke exhaust system has various methods depending on the size and type of the building. For example, there is a closed smoke exhaust system that seals the space where the fire occurred with walls or doors, etc., to prevent smoke from leaking out and outside air from entering when a fire breaks out; a natural smoke exhaust system that exhausts smoke outdoors from a window or dedicated exhaust pipe installed indoors by utilizing the buoyancy or outside air suction effect due to the temperature rise generated when a fire breaks out; a smoke tower smoke exhaust system that exhausts smoke by utilizing the suction power of outside air, such as a loop monitor installed at the top of the smoke exhaust system, due to the buoyancy caused by the temperature difference between the inside and outside of the building due to the temperature rise caused by the heat when a fire breaks out; and a mechanical smoke exhaust system that supplies outside air by using the power of a machine in the area where the fire broke out, in a hallway, on a stairway, or in the living room.

Meanwhile, as a prior art of a firefighting smoke extraction structure, Korean Patent Registration No. 10-2050030 (publication date: 2019.11.28) discloses a firefighting smoke extraction structure with improved safety. The firefighting smoke extraction structure is configured to block smoke spread primarily using a first smoke extraction boundary device, block smoke spread secondarily using a second smoke extraction boundary device, and block the space between the second smoke extraction boundary device and the wall using a third smoke extraction boundary device.

However, since this firefighting smoke extraction mechanism is configured so that when a fire is detected, the first boundary wall driving mechanism of the ball screw structure operates to move the first smoke extraction boundary mechanism downward, and the second smoke extraction boundary mechanism wound on the winding drum is unwound downward by the operation of the winding driving mechanism, there was a problem that effective smoke extraction was difficult because the mechanical operation of each smoke extraction boundary mechanism took a lot of time, and there was a problem that the smoke extraction boundary mechanism did not operate when the power was cut off due to a fire.

In addition, the smoke structure according to the prior art had a problem in that when an evacuee from a fire space passes through a smoke boundary wall blocking the passage to escape to a shelter or a firefighter from the outside passes through the passage to enter a fire space, the smoke boundary walls that are connected to each other must be separated to secure a passage, so smoke cannot help but spread from the fire space to the shelter.

. Republic of Korea Patent No. 10-2050030 (Announcement Date: 2019.11.28)

The specific technical solution of the present invention for resolving the above-mentioned conventional problems is to provide a fire-fighting smoke exhaust structure for a building which can prevent smoke including flames and toxic gases from spreading from a space where a fire has occurred to a space where a fire has occurred, that is, an evacuation space or a space to be evacuated to, when a fire breaks out in a building, and which can perform a smoke exhaust function even after an evacuee escaping from a space where a fire has occurred can easily pass through or a firefighter can enter a space where a fire has occurred without interference.

In addition, the problems to be solved by the present invention are not limited to the technical problems mentioned above.

In addition, other technical problems not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

The specific technical solution of the present invention for solving the above-mentioned technical problem is: an opening/closing smoke screen, one end of which is axially connected to the ceiling and the other end of which is provided with a locking opening so as to open/close an accommodation space provided by being sunken in the width direction in the ceiling of a passageway or a living space of a building downward; an upper smoke screen made of a non-combustible or flame retardant material, double-joined and having a horizontal filling part formed inside; and each of the vertical smoke screens, which are made of the same material as the upper smoke screen and have a region excluding the upper smoke screen part divided from top to bottom and double-joined and having a vertical filling part formed inside that is communicated with the horizontal filling part, are formed, and are formed in a rolled state; and the upper smoke screen is connected to the inner surface of the opening/closing smoke screen; And the fire-fighting structure of a building is characterized by comprising a fire water supply unit including a fire water tank provided on the upper part of the receiving space and storing fire water, at least one nozzle arranged in the horizontal filling section and connected to the fire water tank by a connecting pipe, and an opening/closing valve installed in the connecting pipe and operating when the opening/closing smoke barrier is opened due to a fire to fill the fire water into the respective vertical filling sections through the horizontal filling section, and when a fire occurs, the opening/closing smoke barrier rotates downward to open the receiving space and at the same time, the opening/closing valve is opened so that the fire water is filled into the horizontal filling section and the respective vertical filling sections, and the expandable smoke curtain is expanded downward by its own weight and the fire water, and the expanded expandable smoke curtain blocks the space between the fire occurrence space and the evacuation space to prevent the spread of heat and smoke caused by the fire.

The above locking mechanism is characterized by including a locking member provided at an end of the opening/closing smoke plate, which has a locking groove; and an actuator provided on the ceiling corresponding to the locking groove, which is configured to move the locking rod forward and backward by an electric signal so as to be engaged with or disengaged from the locking groove.

The above locking rod is characterized in that a handle and a pulling string are provided to be exposed to the bottom of the ceiling for manually operating the locking rod backwards in the event of a failure of the actuator.

On both edges of the vertical siding section in the width direction, a sealing section is formed that is thinner and more flexible than the thickness of the vertical filling section and has a predetermined width, and is characterized in that it blocks the space between each of the vertical siding sections that are spread downward.

The above-mentioned contact portion is characterized in that a rubber magnet is provided on each side so that the contact portions on both sides of the adjacent contact portion are attracted to each other.

According to the present invention, a smoke-suppressing structure is formed on the ceiling of a passageway or a living space in a building, comprising an openable smoke barrier, a spreadable smoke curtain, and a fire-fighting water supply unit for supplying fire-fighting water to the interior of the spreadable smoke barrier, so that when a fire breaks out, the openable smoke barrier is opened and the spreadable smoke curtain is spread, so that smoke including flames and toxic gases can be quickly blocked from spreading from a space where a fire has broken out to a space where a fire has not broken out, that is, an evacuation space or a space to be evacuated to, and the smoke-suppressing function can be maintained even after an evacuee escaping from a space where a fire has broken out can easily pass through the spreadable smoke barrier or a firefighter can enter a space where a fire has broken out without interference.

In addition, when the deployable smoke curtain is deployed, fire water is supplied and filled inside by the drop, so that each vertical smoke curtain section can be deployed quickly without power, and the fire water filled inside can provide the effect of protecting the smoke curtain from heat and flames caused by a fire.

In addition, in cases where fire extinguishing water is urgently needed in the event of a fire, it can provide the effect of extinguishing the fire by using the fire extinguishing water filled in the smoke screen.

FIG. 1 is a schematic cross-sectional side view showing a state before the smoke extraction function is operated in a fire-fighting smoke extraction system of a building according to the first embodiment of the present invention.
Figure 2 is a schematic cross-sectional view showing the state in which the smoke extraction function is in operation in the fire-fighting smoke extraction structure of the building shown in Figure 1.
Figure 3 is a schematic front view showing the state in which the smoke extraction function is in operation in the fire-fighting smoke extraction structure of the building shown in Figure 1.
Figure 4 is a schematic cross-sectional view showing the state in which the smoke extraction function is in operation in the fire-fighting smoke extraction structure of the building shown in Figure 1.
Figure 5 is a cross-sectional view illustrating another embodiment of the vertical differential shown in Figure 4.
FIG. 6 is a schematic cross-sectional view and a plan view showing a state in which a smoke extraction function is operated in a fire-fighting smoke extraction structure of a building according to a second embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, in describing the present invention, descriptions of functions or configurations already known will be omitted in order to clarify the gist of the present invention.

In this specification, the terminology used is for the purpose of describing embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise. The words 'comprises' and/or 'comprising' as used in the specification do not exclude the presence or addition of one or more other elements mentioned.

In this specification, when it is said that a component is "connected" to another component, it should be understood that it may be directly connected to the other component, but there may also be other components in between. On the other hand, when it is said that a component is "directly connected" to another component, it should be understood that there are no other components in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present invention.

In this specification, singular expressions include plural expressions unless the context clearly indicates otherwise.

Among the attached drawings, FIG. 1 is a schematic side sectional view illustrating a state before the smoke extraction function is operated in a fire-fighting smoke exhaust system of a building according to a first embodiment of the present invention, FIG. 2 is a schematic side sectional view illustrating a state after the smoke extraction function is operated in a fire-fighting smoke exhaust system of the building illustrated in FIG. 1, and FIG. 3 is a schematic front view illustrating a state after the smoke extraction function is operated in a fire-fighting smoke exhaust system of the building illustrated in FIG. 1. In addition, FIG. 4 is a schematic plan sectional view illustrating a state after the smoke extraction function is operated in a fire-fighting smoke exhaust system of the building illustrated in FIG. 1.

As illustrated in FIGS. 1 to 4, the fire-fighting smoke curtain (20) of a building according to the first embodiment of the present invention is intended to block a fire-related space (S1) and an evacuation space (S2) to prevent flames or smoke from spreading to the evacuation space. In the event of a fire, a spreadable smoke curtain (40) that is spread downward from the ceiling (10) of a passageway or living space of the building blocks the fire-related space (S1) where a fire has occurred and the evacuation space (S2) where no fire has occurred. However, evacuees can pass from the fire-related space (S1) to the evacuation space (S2) without interference and firefighters can enter the fire-related space (S1). In addition, since the fire-fighting water stored in the fire-fighting water supply unit (50) is filled inside the spreadable smoke curtain (40), it has the characteristic of blocking flames and heat from the fire-related space (S1).

Let me explain this in more detail.

The fire-fighting ventilation structure (20) of a building according to the present invention is positioned on the ceiling of a passageway (hallway, etc.) of a building, the ceiling between a passageway and a staircase, the ceiling between a living room and an entrance door in a residential space, etc., and an accommodation space (S3) is formed in the width direction in the ceiling (10). That is, an accommodation space (S3) is formed in the width direction in the ceiling (10) along both walls (W).

At the ceiling (10) corresponding to the edge of the entrance to the receiving space (S3), one side of an opening/closing smoke barrier (30) is connected by an axis, and a lock (32) is provided on the opposite side. The opening/closing smoke barrier (30) is for opening and closing the lower part of the receiving space (S3), and may be composed of a metal plate, a flame retardant material, or a non-combustible material. When both ends of the opening/closing smoke barrier (30) are rotated around an axis to open the receiving space (S3) and spread downward, they come into close contact with the upper area of both walls (W). This is to prevent smoke from spreading to the upper part of a passageway, etc. At this time, although not shown in the drawing, a resin plate may be provided at both ends of the opening/closing smoke barrier (30) to close the both walls (W) and maintain airtightness. The resin plate may be composed of a flame retardant material or a non-combustible material, and may be composed of a flexible soft resin, silicone material, synthetic resin material, etc.

The aforementioned opening/closing smoke screen (30) can be closed by the locking member (32), that is, the receiving space (S3) can be closed, and the locking state of the opening/closing smoke screen (30) can be released by an opening operation using an electric signal. The locking member (32A) is provided at an end of the opening/closing smoke screen (30) and has a locking groove (32A-1), and is configured to include an actuator (32B) provided on the ceiling (10) corresponding to the locking groove (32A-2) so that the locking rod (32B-1) is moved forward and backward by an electric signal so that the end is locked or released from the locking groove (32A-1).

Meanwhile, in the locking rod (32B-1), a handle (32B-2) and a pulling string (32B-3) are provided to be exposed to the lower surface of the ceiling (10) for manually operating the locking rod (32B-1) backwards when the power supply is cut off due to a fire or the actuator (32B) breaks down. The locking port (32) can be manually opened by the handle (32B-2) and the pulling string (32B-3).

The unfoldable smoke curtain (40) is stored in a rolled state on the inner surface of the openable smoke curtain (30) and unfolds downward when the openable smoke curtain (30) is opened to block and separate the fire occurrence space (S1) and the evacuation space (S2).

The spreadable smoke barrier (40) is formed of an upper smoke barrier (42) made of a non-combustible or flame-retardant material and is double-bonded to form a horizontal filling portion (42A) inside, and each of the vertical smoke barriers (44) is formed of the same material as the upper smoke barrier (42) and has a region excluding the upper smoke barrier (42) divided from top to bottom and is double-bonded to form a vertical filling portion (44A) inside that is connected to the horizontal filling portion (42A). The upper smoke barrier (42) and the vertical smoke barrier (44) are fixed to the inner surface of the opening/closing smoke barrier (30) in a rolled state.

The horizontal filling part (42A) and the vertical filling part (44A) are filled with fire retardant water. That is, the fire retardant water supplied to the horizontal filling part (42A) is filled in the vertical filling part (44A) of each vertical insulation part (44), thereby efficiently blocking heat and flames from the fire occurrence space (S1), and in an emergency, the fire retardant water filled in the vertical filling part (44A) can also be used for the purpose of extinguishing a fire.

Meanwhile, on both edges of the width direction of each vertical smoke barrier (44), a means is provided to seal between each vertical smoke barrier (44) to prevent smoke from passing through the fire occurrence space (S1) and to allow evacuees or firefighters to pass through. That is, a sealing portion (44B) that is thinner and flexible than the thickness of the vertical smoke barrier (44) and has a predetermined width is formed on each edge of the width direction of each vertical smoke barrier (44).

And, as shown in Fig. 5 among the attached drawings, rubber magnets (44C) are respectively provided in each of the contact portions (44B) so that the contact portions (44B-1, 44B-2) on both sides are attracted to each other to provide excellent contact. The rubber magnets (44C) may be formed in a band shape and attached along the entire length of the contact portion (44B), or may be cut to a predetermined length and attached to the contact portions (44B) at intervals from each other. In this way, by providing the rubber magnets (44C) in each of the contact portions (44B), the contact portions (44B) adjacent to each other are attracted to each other, so that the airtightness can be improved.

In this way, the sealing portions (44B) formed along the longitudinal direction at each edge of the vertical smoke barrier (44) are in close contact with the neighboring sealing portions (44B) while each vertical smoke barrier (44) is spread downward, so that smoke generated from the fire occurrence space (S1) is blocked by each vertical smoke barrier (44) and the sealing portions (44B) and cannot spread to the evacuation space (S2).

However, when a firefighter or an evacuee pushes the vertical barrier member (44), each vertical barrier member (44) is pushed and each sealing member (44B) is separated, thereby forming an escape route or an entry route, so that an evacuee can escape or a firefighter can enter without interference, and when the external force that pushed the vertical barrier member (44) is removed, each vertical barrier member (44) returns to its original position by gravity, and each sealing member (44B) is sealed together again and becomes one with each other, thereby blocking the passage between the fire occurrence space (S1) and the evacuation space (S2). In particular, when a rubber magnet (44C) is provided in the sealing member (44B), neighboring sealing members (44B) that were separated can be sealed again by the magnetic force to maintain an airtight seal.

Meanwhile, in a passage or living space where a fire-fighting smoke extraction structure (20) of a building according to the present invention is located, an exhaust port (62) of a smoke extraction device (60) for forcibly discharging smoke to the outside of the building may be installed. In addition, an outside air intake port (72) of an air supply device (70) for supplying outside air may be installed on one side based on the smoke extraction structure (20), and an exhaust port (62) of a smoke extraction device (60) may be installed on the opposite side.

In this way, by providing a smoke exhaust device (60) on one side of the smoke generating structure (20) or by installing a smoke exhaust device (60) on one side and providing an air supply device (70) on the opposite side, smoke generated in the space where a fire occurred (S1) can be quickly exhausted in the event of a fire, and fresh outside air can be supplied to the evacuation space (S2), thereby preventing or minimizing damage to evacuees due to toxic gases.

The fire water supply unit (50) is provided to supply stored fire water to the horizontal filling unit (42A) and each vertical filling unit (44A) of the expandable smoke curtain (40) when the opening/closing smoke curtain (30) is opened in the event of a fire, thereby allowing the upper smoke curtain (42) and the vertical smoke curtain (44) to be quickly expanded by gravity, and also to provide a cooling function for cooling the heat transmitted from the space where the fire occurred (S1), a protective function for protecting the expandable smoke curtain (40) from heat and flames, and a fire prevention function for using the fire water to extinguish a fire in an emergency.

The fire-fighting water supply unit (50) is configured to include a fire-fighting water tank (52) provided on the upper portion of the receiving space (S3) formed in the ceiling (10) and storing fire-fighting water, at least one nozzle (54) arranged in the horizontal smoke barrier (42) and connected to the fire-fighting water tank (52) by a connecting pipe (53), and an opening/closing valve (56) installed in the connecting pipe (53) and operated to open when the smoke barrier (30) for opening/closing is unfolded due to a fire, so that fire-fighting water is filled into each of the vertical smoke barriers (44) through the horizontal smoke barrier (42).

The opening/closing valve (56) is opened by an electric operating signal transmitted from a control unit (C) that receives detection signals from various detection sensors such as a fire detection sensor, a smoke detection sensor, a toxic gas detection sensor, a temperature sensor, a flame detection sensor, etc. At this time, the control unit (C) may also open the opening/closing valve (56) by receiving an opening detection signal from a limit switch or a motion detection sensor for detecting that the opening/closing smoke barrier (30) is opened.

When the aforementioned opening/closing valve (56) is opened, the fire water stored in the fire water tank (52) can be filled into each vertical filling section (44A) through the horizontal filling section (42A) by the difference in height, so that a separate pump or the like for filling the fire water into the horizontal filling section (42A) and each vertical filling section (44A) is unnecessary.

In the fire-fighting smoke extraction structure (20) of the building according to the present invention configured as described above, the smoke extraction function operates as follows.

When a fire occurs and the control unit (C) receives a fire detection signal, the control unit (C) operates the actuator (32B) of the locking member (32) backward to release the locking rod (32B-1) from the engaging groove (32A-1). This operation causes the opening/closing smoke screen (30) to rotate downward around its axis to open the receiving space (S3).

As the opening/closing smoke screen (30) opens the receiving space (S3), the unfoldable smoke screen (40) that was wound and received on the inner surface of the opening/closing smoke screen (30) unfolds downward. At the same time, the control unit (C), which detects that the opening/closing smoke screen (30) has opened the receiving space (S3), operates the opening/closing valve (56) to open.

Through this process, the fire extinguishing water stored in the fire extinguishing water tank (52) is filled into the horizontal filling portion (42A) and each vertical filling portion (44A) through the nozzle (54).

As the fire extinguishing fluid is filled into the horizontal filling portions (42A) and each vertical filling portion (44A) by the drop, each vertical filling portion (44) can be quickly spread out, and the flow can be suppressed by the weight of the fire extinguishing fluid.

As the upper smoke shield (42) and each vertical smoke shield (44) are spread out in this way, the fire occurrence space (S1) and the evacuation space (S2) are blocked, and smoke and heat generated from the fire occurrence space (S1) are blocked, preventing their spread.

In particular, since the inside of the deployable smoke curtain (40) is filled with fire retardant, heat transmitted from the fire occurrence space (S1) can be cooled, the deployable smoke curtain (40) can be protected from heat and flames, and can be used as fire retardant to extinguish a fire in an emergency.

In addition, since the spreadable barrier (40) is composed of each of the vertical barrier sections (44), when an evacuee escaping from a space where a fire occurred (S1) pushes each of the vertical barrier sections (44) forward or left or right, each of the vertical barrier sections (44) is folded by an external force, so that an escape route can be secured without interference, and even when a firefighter enters the space where a fire occurred (S1), each of the vertical barrier sections (44) can be easily folded to form a passage, and when the external force is removed, each of the vertical barrier sections (44) returns to its original position by gravity, so that the function of the smoke barrier (40) blocking the space where a fire occurred (S1) and the evacuation space (S2) can still be performed.

In addition, since a sealing portion (44B) is provided for each vertical siding portion (44), the sealing between each vertical siding portion (44) can be maintained.

Meanwhile, among the attached drawings, FIG. 6 is a schematic side cross-sectional view and a plan cross-sectional view showing a state in which a smoke extraction function is operated in a fire-fighting smoke extraction structure of a building according to the second embodiment of the present invention.

As shown in FIG. 6, in the second embodiment of the present invention, a supporting member (80) is provided on both walls (W) of a space (passageway, etc.) where a fire-fighting smoke barrier (20) is located to support the deployable smoke barrier (40) so that it expands and does not flow when a fire occurs and the deployable smoke barrier (40) is detected to be deployed, except that this is the same as the previously described embodiment.

That is, a support member (80) is installed on both walls (W) to support each vertical fire escape section (44) so that it does not flow and remains in an unfolded state due to the pressure difference between the space where the fire occurred (S1) and the evacuation space (S2).

The support member (80) is configured to include each expansion member (82) made of a non-combustible or flame retardant material, double-bonded to form an expansion space inside, and formed to be opened horizontally to the wall (W) in a folded state, and a gas cartridge (84) provided at the entrance of each expansion member (82) and triggered by an electric signal to inject expansion gas to expand the expansion member (82) horizontally.

These supporting members (80) support each vertical insulation portion (44) by horizontally expanding each of the expansion members (82) facing each other when the gas cartridge (84) is triggered by an electric operating signal from the control unit (C) in the event of a fire. Accordingly, each of the vertical insulation portions (44) can stably maintain a close state by maintaining a seal with each other while the flow is suppressed.

Although specific embodiments of the present invention have been described and illustrated above, it will be apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, such modifications or variations should not be understood individually from the technical spirit or perspective of the present invention, and the modified embodiments should fall within the scope of the claims of the present invention.

10: Ceiling 20: Manufacturing
30: Openable smoke screen 32: Locking hole
40: Spreadable smoke screen 42: Top smoke screen
42A: Horizontal filler 44: Vertical filler
44A: Vertical filling part 44B: Sealing part
50: Fire water supply unit 52: Fire water tank
54: Nozzle 56: Open/close valve
60: Exhaust device 62: Exhaust port
70: Air supply device 72: Outside air intake
80: Support member 82: Expansion member
84 : Gas cartridge
C: Control unit W: Wall
S1: Fire area S2: Evacuation area
S3: Receiving space S4: Wall receiving space

Claims (5)

A smoke screen for opening and closing, which is provided by being recessed in the width direction of the ceiling of a building's passageway or living space, and has one end axially connected to the ceiling and the other end provided with a locking mechanism to open and close the accommodation space downwards;
A spreadable smoke barrier comprising an upper smoke barrier made of a non-combustible or flame retardant material, double-laminated, and having a horizontal filling portion formed inside, and each of the vertical smoke barriers formed of the same material as the upper smoke barrier and having a vertical filling portion formed inside that is divided from top to bottom, excluding the upper smoke barrier, and double-laminated, and communicating with the horizontal filling portion, in a rolled state, wherein the upper smoke barrier is joined to the inner surface of the opening/closing smoke barrier; and
A fire water supply unit is provided, which comprises a fire water tank provided on the upper portion of the above-mentioned receiving space and storing fire water, at least one nozzle arranged in the horizontal filling section and connected to the fire water tank by a connecting pipe, and an opening/closing valve installed in the connecting pipe and opened when the opening/closing smoke screen is unfolded due to a fire, so that the fire water is filled into each of the vertical filling sections through the horizontal filling section.
When a fire occurs, the opening/closing smoke barrier rotates downward to open the receiving space, and at the same time, the opening/closing valve opens, and the fire water is filled into the horizontal filling portion and each of the vertical filling portions, and the spreadable smoke barrier is spread downward by its own weight and the fire water, and the spreadable smoke barrier blocks the space between the fire occurrence area and the evacuation area to prevent the spread of heat and smoke caused by the fire.
On both sides of the width direction of the vertical gap section,
It is characterized in that each of the sealing parts, which is thinner and more flexible than the thickness of the vertical filling part and has a predetermined width, is formed to block between each of the vertical shielding parts that are spread downward.
Fire-fighting ventilation system for buildings. In the first paragraph,
The above locking mechanism,
A locking member provided at an end of the opening/closing smoke plate with a locking groove; and an actuator provided on the ceiling corresponding to the locking groove, which is configured to move the locking rod forward and backward by an electric signal so as to be locked in the locking groove or released from the locking groove.
Fire-fighting ventilation system for buildings. In the second paragraph,
In the above lock load,
It is characterized in that a handle and a pulling string for manually operating the locking rod backwards in the event of a failure of the above actuator are provided so as to be exposed to the bottom of the ceiling.
Fire-fighting ventilation system for buildings. delete In the first paragraph,
In the above-mentioned contact part,
It is characterized in that rubber magnets are provided on each side so that the above-mentioned contact parts on both sides are attracted to each other.
Fire-fighting ventilation system for buildings.