KR102484872B1 - System and method for controlling smoke of high-rise building - Google Patents

Abstract

The smoke control system of a high-rise building according to an embodiment of the present invention includes a differential pressure damper installed in each floor of the high-rise building and controlling the pressure of the ventilation area in the event of a fire, and a ventilation area including an indoor area connected to the ventilation area. An exhaust damper installed in the ventilation area and the ventilation area may be included to discharge fire smoke to the outside of the high-rise building. The operation of the exhaust damper may be controlled according to a change in internal pressure of the exhaust area.

Description

Smoke control system for high-rise buildings and its method {SYSTEM AND METHOD FOR CONTROLLING SMOKE OF HIGH-RISE BUILDING}

The present invention relates to a smoke control system for high-rise buildings and a smoke control method therefor, and more particularly, in the event of a fire in a high-rise building, it is possible to prevent indoor smoke or toxic gas from entering a smoke control area such as an evacuation stairway or an elevator room. In particular, it relates to a smoke control system for a high-rise building capable of optimizing the operation of an exhaust damper for discharging indoor smoke or toxic gas to the outside and a smoke control method thereof.

In general, in a high-rise building, the space in front of the elevator or in front of the stairwell is defined as a smoke control area in case of fire, and the high-rise building is equipped with a smoke control device or smoke control system to prevent smoke or harmful gases generated inside the high-rise building from entering the control area. do. Therefore, the occupant of the high-rise building can evacuate safely out of the high-rise building through the evacuation stairway or the elevator by the smoke control device or the ventilation system of the high-rise building, thereby greatly reducing human casualties.

A representative smoke control device installed in the ventilation area of a high-rise building is a supply air flow path that forms a flow path through which external air is transported in the vertical direction of the high-rise building, a differential pressure damper installed in each floor ventilation area of the high-rise building to communicate with the air supply air flow path, and It includes an air supply blower installed in the basement of a high-rise building to supply outside air of the high-rise building to the control area of each floor through the air supply air flow.

That is, a supply air blower must be selected with a sufficient design ventilation volume to exert the required smoke control performance according to the size and structure of the high-rise building. It is desirable to have a design air flow rate high enough to allow However, if a supply air blower with a design air flow rate that is too high is installed in a high-rise building, the pressure in the ventilation area increases excessively and reaches an overpressure state in a specific situation, for example, in a situation where all doors of the ventilation area are closed in the event of a fire in the high-rise building. As a result, there is a problem in that a situation in which an occupant who wants to evacuate from the inside cannot open the door or it is difficult to open it.

Specifically, the differential pressure damper is normally closed, but is opened at a preset opening rate in the event of a fire so that the differential pressure between the smoke control area and the indoors is within the required pressure range (eg, the pressure difference between the smoke control area and the indoors is within the range of 40 to 60Pa). The pressure of the control area is maintained higher than the indoor pressure, and when the door of the ventilation area is opened for evacuation of occupants, it is opened with a larger opening rate, and the smoke control wind speed required for the door opened in the control area (eg, 0.7 m /s or higher).

In fact, conventional smoke control devices installed in high-rise buildings must be designed to satisfy the following three design criteria requirements or smoke control performance requirements. There is a problem that does not smoothly satisfy the .

1) Maintain the pressure range (e.g., 40 to 60 Pa range) required for differential pressure between the ventilation area and indoors.

2) If at least one of the doors of the control area is open, the required smoke control wind speed (e.g., 0.7m/s or more) for the door opened in the control area should be secured.

3) At the same time as 2), maintain the required differential pressure (e.g., 28Pa or more) in the control area of other floors (non-open floors) where the door is not opened

On the other hand, the ventilation system of a high-rise building is connected to an exhaust damper installed indoors on each floor and an exhaust damper installed on each floor. It further includes an exhaust fan installed on the roof of a high-rise building to discharge outside air or indoor smoke and toxic gas, and indoor smoke or toxic gas to the outside of the high-rise building.

However, the existing exhaust damper is controlled regardless of the operating method of the differential pressure damper or is controlled regardless of whether the door is opened or closed, causing various problems. For example, if the exhaust damper operates while all doors and windows are closed, indoor smoke or toxic gases are discharged to the outside, and the indoor pressure is rapidly lowered, making it difficult for occupants to open the door. There is a problem in which there is no or hard-to-open situation.

In order to improve the above problems, recently, various technologies for ventilation systems for high-rise buildings have been continuously researched and developed.

In order to satisfy the performance requirements of the smoke control equipment as described above, technology development for a smoke control system or a differential pressure damper installed in a control area has recently been actively conducted. For example, related prior art documents include Korean Patent Publication No. 10-2015-0139353 (title of invention: air supply damper, publication date: 2015.12.11) and Korean Patent Publication No. 10-2016-0038141 (name of invention: There is a non-directional differential pressure damper, published date: 2016.04.07).

Korean Patent Publication No. 10-2015-0139353 (published date: 2015.12.11) Korean Patent Publication No. 10-2016-0038141 (published date: 2016.04.07)

An embodiment of the present invention is a smoke control system for a high-rise building capable of smoothly preventing smoke and toxic gases from entering a control area in the event of a fire in a high-rise building and stably securing smoke control performance in various situations, and its Smoke control method is provided.

In addition, an embodiment of the present invention provides a high-rise building smoke control system and a smoke control method thereof capable of optimizing the performance of the differential pressure damper and the exhaust damper in various fire situations by improving the operation method of the exhaust damper in the event of a fire in the high-rise building. do.

In addition, an embodiment of the present invention is a high-rise building that can easily improve the problem that the indoor pressure is reduced by the exhaust pressure of the exhaust damper in the event of a fire in the high-rise building, making it difficult or impossible to open the door in the evacuation direction. A smoke control system and a smoke control method thereof are provided.

According to one embodiment of the present invention, a differential pressure damper installed in each floor ventilation area of a high-rise building and controlling the pressure of the ventilation area in the event of a fire, and the fire smoke of the ventilation area including the indoor connected to the ventilation area, the high-rise building Provided is a smoke control system for a high-rise building including an exhaust damper installed in the ventilation area and the ventilation area to discharge to the outside of the building.

The operation of the exhaust damper may be controlled according to a change in internal pressure of the exhaust area.

Preferably, the smoke control system of a high-rise building according to an embodiment of the present invention further includes a fire detector installed indoors to detect the occurrence of a fire indoors, and a differential pressure detector for detecting a differential pressure between the ventilation area and the exhaust area. can include

The exhaust damper may operate when a fire is detected by the fire detector of the corresponding floor, but may stop operating if the pressure in the exhaust area detected by the differential pressure detector of the corresponding floor is less than a set pressure.

Preferably, the set pressure may be set to a negative pressure that prevents the door from opening when the door of the exhaust area is opened.

Preferably, the differential pressure damper may be operated in a differential pressure mode for maintaining the differential pressure between the ventilation area and the exhaust area at a preset first differential pressure when the doors of the exhaust area are closed on all floors in the event of a fire, and the fire When the door of the ventilation area for the generated fire floor is opened, it may operate in a smoke control wind speed mode generating a preset smoke wind speed toward the exhaust ventilation area from the ventilation area of the corresponding fire floor.

The exhaust damper, when the differential pressure damper in the fire floor is operated in the differential pressure mode or the flame-retardant wind speed mode, when the pressure in the exhaust area of the corresponding fire layer is greater than the set pressure, the control area when the door of the exhaust area is opened. It can be operated to discharge the air introduced into the exhaust ventilation area and the fire smoke generated in the exhaust ventilation area at the smoke wind speed. In addition, in the exhaust damper, when the differential pressure damper is operated in the flame retardant wind speed mode in the fire floor, the entrance door of the exhaust area of the fire floor is closed so that the pressure in the exhaust area of the fire floor is less than the set pressure. On the ground, the operation may be stopped so as not to interfere with the opening of the door of the drainage area.

Preferably, the exhaust damper of each floor may be provided with a manual control unit for a user to manually operate the operation. At this time, when a fire occurs in the high-rise building, the operation of the manual control unit provided in the exhaust dampers of the other floors except for the exhaust dampers disposed on the fire floor among the exhaust dampers of each floor may be blocked.

Unlike the above, in the case of a fire in the high-rise building of 20 or more floors, the operation of the manual control unit provided in the exhaust dampers of the other floors except for the exhaust dampers of the upper three floors including the fire floor among the exhaust dampers of each floor is blocked. may be

Alternatively, when a fire breaks out in the high-rise building of less than 20 floors, the operation of the manual control unit provided in the exhaust dampers of the other floors except for the exhaust dampers of the upper two floors including the fire floor among the exhaust dampers of each floor may be blocked. there is.

Preferably, the ventilation system of a high-rise building according to an embodiment of the present invention may further include exhaust blowers connected to the exhaust dampers of each floor to provide exhaust power to the exhaust dampers of each floor.

The performance of the exhaust blower as described above may be determined according to the total exhaust capacity of the exhaust dampers capable of being manually operated by the manual control unit when a fire occurs in the high-rise building.

On the other hand, according to another aspect of the present invention, the step of detecting the fire in the ventilation area including the indoor connected to the ventilation area of each floor of the high-rise building, the step of detecting the pressure of the ventilation area and the ventilation area, the fire in the ventilation area When occurs, operating the differential pressure damper installed in the ventilation area to adjust the pressure in the ventilation area, operating the exhaust damper installed in the exhaust area of the fire floor where the fire occurred to remove the fire smoke generated in the exhaust area to the outside It provides a control method for a smoke control system comprising the steps of: discharging to the exhaust area; and stopping the operation of an exhaust damper installed in the exhaust area when the pressure in the exhaust area of the fire layer falls below a set pressure.

Here, the step of adjusting the pressure of the smoke control area is to provide a differential pressure between the smoke control area and the exhaust area as a preset first differential pressure, or when the door of the smoke control area is opened in the fire floor, the differential pressure installed on the corresponding fire floor. A damper may provide a preset defrosting wind speed towards the ventilation area.

The step of stopping the operation of the exhaust damper may be performed when the pressure of the exhaust area falls below a set pressure after the door of the exhaust area is opened and then closed again on the fire floor.

In addition, a manual control unit for a user to manually operate an operation may be provided in the exhaust damper of each floor. At this time, when a fire is detected in the step of detecting a fire in the ventilation area, when the high-rise building has 20 floors or more, the manual control unit of the exhaust damper of the other floor except for the exhaust damper of the upper three floors including the fire floor When the high-rise building has less than 20 floors, the operation of the manual control unit of the exhaust dampers of other floors except for the exhaust dampers of the upper two floors including the fire floor can be blocked.

A smoke control system for a high-rise building and a smoke control method for a high-rise building according to an embodiment of the present invention prevent indoor smoke and toxic gases from entering a ventilation area by external air supplied by a differential pressure damper when a fire occurs in a high-rise building, thereby preventing occupants' Evacuation safety can be ensured, and the exhaust damper installed on the fire floor discharges the inflow air and indoor smoke and toxic gas from the differential pressure damper to form a smoke-proof wind to the outside, resulting in deaths of occupants due to smoke or toxic gas from the fire. can also be minimized. In particular, in this embodiment, the performance of the differential pressure damper and the exhaust damper can be optimized in various fire situations by controlling the operation of the exhaust damper according to the change in internal pressure of the exhaust area during operation of the differential pressure damper.

In addition, the high-rise building's smoke control system and its smoke control method according to an embodiment of the present invention, when a fire in a high-rise building occurs, the exhaust pressure of the exhaust damper when the pressure in the exhaust area including indoors falls below the set pressure by the exhaust pressure of the exhaust damper Since the operation is stopped, the pressure drop in the exhaust area due to the exhaust damper is prevented in advance, and the problem of the occupant being unable or difficult to open the door due to the pressure drop in the exhaust area can be easily solved.

In addition, in the high-rise building smoke control system and its smoke control method according to an embodiment of the present invention, when a fire in a high-rise building occurs, when the door to the exhaust area is opened on the fire floor, the differential pressure damper controls the smoke control wind speed from the smoke control area to the exhaust area. However, the exhaust damper can discharge the air flowing into the exhaust area from the differential pressure damper and the smoke and toxic gases generated in the exhaust area to the outside. When this negative pressure is lowered, the operation of the exhaust damper can be stopped. Therefore, in the present embodiment, when the door of the exhaust area is closed again in a state where the differential pressure damper operates in the smoke-free wind speed mode, the door of the exhaust area cannot be opened again or is difficult to open due to the pressure drop in the exhaust area caused by the exhaust damper. can be prevented in advance.

In addition, in the smoke control system of a high-rise building and its smoke control method according to an embodiment of the present invention, when a fire in a high-rise building occurs, when an occupant of the ventilation area opens the door in the ventilation area of the fire floor, other occupants are inside the ventilation area. In the case where the door is closed again in the remaining situation, the internal pressure of the exhaust area is actively prevented from being lowered to negative pressure by the exhaust damper, so that the other occupants remaining in the exhaust area are elderly and infirm. It can effectively solve the human damage caused by not opening it.

In addition, in the smoke control system of a high-rise building and the smoke control method thereof according to an embodiment of the present invention, when a fire occurs in a high-rise building, only the manual control part of the exhaust damper installed on a specific floor including the fire floor among the manual control parts of the exhaust damper on each floor operates. Since the operation of the manual control unit of the exhaust damper on the other floor is stopped, the operation of the exhaust damper by manual operation can be minimized to stably secure the smoke exhaust performance of the exhaust damper in the event of a fire in a high-rise building, and the design capacity of the exhaust blower can also be reduced. It can reduce the installation cost of the exhaust blower.

1 is a schematic diagram of a ventilation system for a high-rise building according to an embodiment of the present invention.
FIG. 2 is a view showing a ventilation area and a ventilation area of the smoke control system shown in FIG. 1 .
FIG. 3 is a diagram schematically illustrating a control configuration of the smoke control system shown in FIG. 1 .
4 to 6 are diagrams showing an operating state of a smoke control system according to an embodiment of the present invention.
7 is a schematic view of a ventilation system for a high-rise building according to another embodiment of the present invention.
FIG. 8 is a view showing a ventilation area and a ventilation area of the smoke control system shown in FIG. 7 .

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited or limited by the examples. Like reference numerals in each figure indicate like elements.

1 is a schematic diagram of a smoke control system 100 of a high-rise building 10 according to an embodiment of the present invention, and FIG. It is a view showing the exhaust control area 14. FIG. 3 is a diagram schematically showing a control configuration of the smoke control system 100 shown in FIG. 1, and FIGS. 4 to 6 are views showing an operating state of the smoke control system 100 according to an embodiment of the present invention.

1 to 3, the smoke control system 100 of the high-rise building 10 according to an embodiment of the present invention includes a differential pressure damper 200, an exhaust damper 300, a fire detector 400, and a differential pressure detector ( 500) are included.

In the smoke control system 100 of the high-rise building 10 according to the present embodiment, the differential pressure damper 200 may be installed to supply outside air A to the ventilation zone 12 provided on each floor of the high-rise building 10. And, the exhaust damper 300 may be installed to discharge smoke and toxic gases generated by fire in the exhaust area 14 provided on each floor of the high-rise building 10. For reference, hereinafter, smoke and toxic gas generated by a fire in the indoor 26 of the high-rise building 10 will be referred to as 'fire smoke (G)'.

Here, the control area 12 is an area in which the inflow of smoke or toxic gas generated in the indoor 26 is blocked when a fire occurs in the high-rise building 10, and is formed between the indoor entrance door 27 and the fire door. It may be provided with a structure including an auxiliary room 20 corresponding to. The accessory room 20 as described above can be connected to the indoor 26 through the indoor door 27, can be connected to the evacuation stairway 22 through the stairway door 23, and the elevator through the elevator door 25 It can be connected with thread 24.

As shown in FIG. 1, the smoke control system 100 of the high-rise building 10 according to this embodiment further includes an air supply wind duct 30, an air supply blower 32, a composite damper 600, and a return damper 700. can include

The supply air flow rate 30 is also referred to as a 'vertical air flow rate' and may be provided perpendicularly to the high-rise building 10 to guide clean external air A to the differential pressure damper 200. One side of the supply air flow 30 as described above may be connected to the differential pressure damper 200 of each floor. The air supply blower 32 may be connected to the other side of the air supply wind duct 30 so as to blow the external air A at a predetermined pressure to the air supply wind duct 30 . The composite damper 600 and the return damper 700 may be provided on the outlet side of the air supply blower 32 to adjust the supply amount of external air (A) blown from the air supply blower 32 . In this embodiment, it will be described that the air supply blower 32, the composite damper 600, and the return damper 700 are installed on the basement floor of the high-rise building 10.

In addition, the ventilation area 14 is an area where fire smoke G generated in the indoors 26 is discharged when a fire occurs in the high-rise building 10, and has a structure including an indoors 26 connected to the ventilation area 12. can be provided. Hereinafter, in this embodiment, it will be described that the exhaust area 14 is indoors 26.

As shown in FIG. 1 , the smoke control system 100 of the high-rise building 10 according to the present embodiment may further include an exhaust fan 40 and an exhaust blower 42 .

Exhaust air flow 40 may be provided perpendicular to the high-rise building 10 to guide the fire smoke (G) from the exhaust damper 300 to the outside. One side of the exhaust airflow 40 as described above may be connected to the exhaust damper 300 of each floor. Exhaust blower 42 may be connected to the other side of the exhaust air flow 40 to blow the fire smoke (G) at a predetermined pressure through the exhaust air flow 40. In this embodiment, the exhaust blower 42 is installed on the roof of the high-rise building 10 .

Meanwhile, in the present embodiment, a corridor 28 is provided between the annex room 20 and the indoor area 26 so as to connect the annex room 20 and the indoor area 26 . At this time, the indoor door 27 of the indoor 26 may be connected in communication with the hallway 28, and the hallway entrance door 29 of the hallway 28 may be connected in communication with the auxiliary room 20. However, it is not limited thereto, and the accessory room 20 and the indoor 26 may be provided in a structure in which they are directly connected without the corridor 28 in the middle.

Therefore, the ventilation area 12 of this embodiment may consist of the auxiliary room 20 and the corridor 28, and the ventilation area 14 of this embodiment may consist of the indoors 26. A differential pressure damper 200 and an exhaust damper 300 may be installed inside the control area 12, and an exhaust duct 330 of an exhaust damper 300, which will be described later, is extended to exhaust the inside of the exhaust control area 14. An inlet of the duct 330 may be disposed.

For reference, in this embodiment, for convenience of description of the ventilation system 100 of the high-rise building 10, it will be described that the high-rise building 10 is a high-rise building with 20 floors above ground and 1 floor below the ground. However, it is not limited thereto, and the smoke control system 100 of the present embodiment can be applied to buildings of less than 20 floors or buildings of 20 floors or more.

1 to 5, the differential pressure damper 200 of this embodiment can adjust the pressure of the control area 12 when a fire occurs in the interior 26 of the high-rise building 10. The differential pressure damper 200 as described above may be installed in each floor ventilation area 12 of the high-rise building 10. That is, the differential pressure damper 200, when a fire occurs in the high-rise building 10, supplies the outside air (A) transmitted from the air supply wind direction 30 to the control area 12 so that the fire smoke (G) is discharged from the indoor 26 It is possible to prevent the inflow into the research area 12 . Therefore, the differential pressure damper 200 can prevent the fire smoke (G) from flowing to another floor through the control zone 12, and through the evacuation stairs or elevator connected to the control zone 12 at the beginning of the fire. Evacuation can be safely guided to minimize human casualties and property damage.

The differential pressure damper 200 as described above may be operated in either a differential pressure mode or a smoke-free wind speed mode when a fire occurs in the high-rise building 10 . Here, the differential pressure mode of the differential pressure damper 200 is a mode that operates when the indoor doors 27 of all floors are closed when a fire occurs in the high-rise building 10, and the differential pressure between the ventilation area 12 and the exhaust area 14 It can be maintained at a preset first differential pressure (eg, a pressure range of 40 to 60 Pa). In addition, the smoke control wind speed mode of the differential pressure damper 200 is a mode that operates when the indoor door 27 of the fire floor (F) in which a fire has occurred in the high-rise building 10 is opened, and A preset smoke wind speed (for example, a wind speed of 0.7 m/s) may be generated from the control area 12 toward the indoor area 26, which is the exhaust control area 14. For reference, when the smoke-free wind speed mode of the differential pressure damper 200 proceeds, the differential pressure damper 200 installed on the non-fire floor (F) where the fire does not occur or the fire floor (F) where the indoor door 27 is not opened is It may be operated to maintain a differential pressure corresponding to 70% of the first differential pressure (eg, a pressure of 28 Pa) or more.

As shown in FIG. 2, the differential pressure damper 200 of this embodiment includes a first differential pressure damper 201 for adjusting the pressure of the auxiliary room 20 in the control area 12, and a corridor in the control area 12 ( 28) may be provided as a second differential pressure damper 202 for adjusting the pressure.

The first differential pressure damper 201 may be installed inside the accessory room 20 to supply outside air A to the inside of the accessory room 20 . The second differential pressure damper 202 may be installed inside the corridor 28 to supply outside air A to the inside of the corridor 28 . On the other hand, the air supply air flow 30 is two in the high-rise building 10 to deliver the external air (A) supplied by the air supply blower 32 to the first differential pressure damper 201 and the second differential pressure damper 202, respectively. can be provided.

As shown in FIGS. 1 and 2 , the differential pressure damper 200 of this embodiment may include a differential pressure damper housing 210 , an air supply unit 220 and a damper controller 230 .

The differential pressure damper housing 210 may be installed on a wall surface of the control area 12 and may have an air supply hole communicating with the air supply air passage 30 .

The air supply unit 220 includes a plurality of air supply blades rotatably mounted in the air supply hole of the differential pressure damper housing 210, and an air supply motor that provides driving force to the air supply blades to adjust the opening amount of the air supply hole by rotating the air supply blades. wealth may be included. The air supply wing maintains a closed state to cover the air supply hole in normal times, and switches to an open state by rotating at a predetermined angle to open the air supply hole in case of a fire in the high-rise building 10.

When the fire detection signal of the fire detector 400 provided on each floor indoors 26 of the high-rise building 10 is received through the repeater 810 of the corresponding floor described later, the damper controller 230 supplies a plurality of air through the air supply motor unit The opening and closing of the wings can be controlled. The damper controller 230 may be provided in a structure accommodated inside the differential pressure damper housing 210 .

Meanwhile, the damper controller 230 may be designed and used only for controlling the operation of the differential pressure damper 200, but in the present embodiment, the damper controller 230 is a control unit for controlling the operation of the smoke control system 100 as a whole ( 800). As an example, the damper controller 230 may be connected to the relay 810 to receive the fire detection signal of the fire detector 400, and the indoor pressure sensor of the differential pressure detector 500 disposed indoors 26 A differential pressure sensor (not shown) to be described below connected to 520 may be embedded.

1 to 6, the exhaust damper 300 of this embodiment discharges the fire smoke (G) generated in the exhaust area 14 of the fire floor (F) to the outside when a fire occurs in the high-rise building (10). can do. The exhaust damper 300 as described above may be installed in the exhaust area 14 connected to the control area 12 of each floor. That is, when a fire occurs in the high-rise building 10, the exhaust damper 300 sucks the fire smoke G generated in the exhaust area 14 made up of the indoor 26, and then passes through the exhaust air flow 40 to the high-rise building 10. ) can be discharged to the outside. Therefore, the exhaust damper 300 can prevent the risk of suffocation of occupants in the indoor 26 by fire smoke G.

That is, the exhaust damper 300 is operated when a fire is detected by the fire detector 400 of the corresponding floor, and the fire smoke G generated in the exhaust area 14 of the corresponding fire floor F is removed from the indoor 26 can be removed At this time, if both the indoor door 27 and the indoor window 26a of the indoor 26 are closed, the pressure in the indoor 26 may gradually decrease by the operation of the exhaust damper 300 as will be described later. On the other hand, when at least one of the indoor door 27 or the indoor window 26a of the indoors 26 is open, the exhaust damper 300 operates because the pressure of the indoors 26 is maintained at atmospheric pressure. Emission of fire smoke (G) according to 300) can be carried out continuously.

In addition, the exhaust damper 300 stops operating when the pressure in the exhaust area 14 detected by the differential pressure detector 500 of the corresponding fire floor F is below the set pressure, so that the indoor 26 is in a vacuum state lower than the atmospheric pressure. can prevent falling out. As described above, when the pressure in the indoor 26 is lowered below the set pressure by the exhaust pressure of the exhaust damper 300, the low pressure in the indoor 26 and the differential pressure between the ventilation area 12 and the exhaust area 14 It may act on the indoor door 27 in a direction obstructing the opening of the door 27 . Therefore, the indoor door 27 may not open or there may be difficulty in opening the indoor door 27, especially in the case of the elderly, such as women, the elderly, or children with low strength due to the exhaust pressure of the exhaust damper 300. Due to the pressure drop in the indoor unit 26, it may not be possible to evacuate the indoor unit 26 in a timely manner in the event of a fire. However, in this embodiment, the operation of the exhaust damper 300 is stopped when the pressure of the exhaust area 14 is detected to be less than the set pressure, so that the effect of preventing the opening of the indoor door 27 due to the pressure drop in the indoor 26 is reduced. can be prevented in advance.

In addition, the exhaust damper 300 operates again when the pressure in the exhaust area 14 detected by the differential pressure detector 500 of the corresponding fire floor F is greater than the set pressure, and the fire smoke generated in the indoor 26 (G) can be re-emitted. That is, even when the pressure of the exhaust area 14 is detected to be less than the set pressure and the operation of the exhaust damper 300 is stopped, if the pressure of the exhaust area 14 is higher than the set pressure again due to various causes By re-operating the exhaust damper 300, the fire smoke (G) can be discharged again. For example, when at least one of the indoor door 27 or the indoor window 26a of the indoor 26 is opened when the pressure in the exhaust area 14 is less than the set pressure, the pressure in the exhaust area 14 may increase to atmospheric pressure or higher. .

The set pressure as described above may be set to a negative pressure to prevent the indoor door 27 from opening when the indoor door 27 of the ventilation area 14 is opened. However, the present invention is not limited thereto, and the set pressure may be set to a positive pressure rather than a negative pressure depending on design conditions and circumstances of the smoke control system 100 .

For example, the operation of the exhaust damper 300 in the differential pressure mode and the flame retardant wind speed mode of the differential pressure damper 200 will be described. That is, when the differential pressure damper 200 in the fire floor (F) is operated in the differential pressure mode or the flame retardant wind speed mode, when the pressure in the exhaust area 14 of the corresponding fire floor (F) is greater than the set pressure, the indoor entrance door 27 and By determining that all indoor windows 26a are open, the exhaust damper 300 can operate to discharge the fire smoke G generated in the exhaust area 14 to the outside. In particular, when the differential pressure damper 200 is operated in the flame retardant wind speed mode in the fire floor (F), the indoor entrance door 27 of the exhaust area 14 of the fire floor (F) is closed again, so that the fire floor (F) When the pressure in the exhaust area 14 is lower than the set pressure, it is determined that the pressure in the indoor 26 is reduced to negative pressure, and the operation of the exhaust damper 300 is stopped so as not to interfere with the opening of the indoor door 27. can

1 and 2, the exhaust damper 300 of this embodiment may include an exhaust damper housing 310, an exhaust unit 320, an exhaust duct 330, and a manual control unit 340.

The exhaust damper housing 310 may be installed in any one of the exhaust control area 12 and exhaust control area 14 so as to be provided on the exhaust duct 330, and to be connected to the exhaust duct 330 in communication. An exhaust hole may be formed.

The exhaust unit 320 may include an exhaust wing rotatably mounted in the exhaust hole of the exhaust damper housing 310, and an exhaust motor unit providing a driving force to the exhaust wing to adjust the opening of the exhaust hole by rotating the exhaust wing. can The exhaust wing maintains a closed state to cover the exhaust hole at normal times, and is rotated at a predetermined angle to open the exhaust hole on the fire floor of the high-rise building 10 to switch to an open state.

The exhaust duct 330 may be provided as a duct extending from the exhaust ventilation area 14 to the exhaust air flow 40 to form a flow path for guiding the fire smoke G from the exhaust air flow 40 from the exhaust air flow 14. there is. At this time, the exhaust damper housing 310 may be disposed on the exhaust duct 330 so that the exhaust hole communicates with the internal flow path of the exhaust duct 330 . One side of the exhaust duct 330 may be connected to the exhaust air passage 40, and the other side of the exhaust duct 330 may be disposed inside the exhaust area 14. A duct cover having a structure such as a grill, a louver, or a mesh may be mounted on the other side of the exhaust duct 330 as described above.

The manual control unit 340 is for the user to manually operate the operation of the exhaust damper 300, and is installed directly on one side of the exhaust damper housing 310 or installed separately on the wall of the place where the exhaust damper housing 310 is disposed. It can be. The manual control unit 340 as described above may be installed within 1.5 m from the floor, and the operation of the exhaust damper 300 may be manually and conveniently controlled by a user manipulating the manual control unit 340 .

That is, in normal times, the user can manually operate the manual control unit 340 to selectively operate the exhaust damper 300, and through the operation of the exhaust damper 300, the ventilation effect for the indoor air in the room 26 can be easily can be implemented

On the other hand, when a fire occurs, the operation of the manual control unit 340 installed on the exhaust dampers 300 of other floors except for the exhaust dampers 300 of the fire floor F may be blocked. Because, in the event of a fire, the exhaust pressure of the exhaust blower 42 is consumed by the exhaust damper 300 of the non-fire layer (F), which does not require the discharge of fire smoke (G), so that the fire layer (F) This is because the exhaust pressure of the exhaust blower 42 transmitted to the exhaust damper 300 is reduced, so that the performance of discharging fire smoke G may be reduced. That is, when a fire occurs in the high-rise building 10, among the exhaust dampers 300 on each floor, the manual control unit 340 provided on the exhaust dampers 300 other than the exhaust dampers 300 disposed on the fire floor F It is preferable that the operation of is blocked.

However, in this embodiment, the number of exhaust dampers 300 for which the operation of the manual control unit 340 is not blocked in the event of a fire is determined according to the number of floors of the high-rise building 10, including the exhaust dampers 300 of the fire floor F. can be set appropriately. For example, when a fire occurs in a high-rise building 10 with 20 or more floors, among the exhaust dampers 300 on each floor, the exhaust dampers 300 of the upper three floors including the fire floor F are excluded from the exhaust dampers of the other floors. The operation of the manual control unit 340 provided in 300 may be blocked. In addition, in the case of a fire in a high-rise building 10 with less than 20 floors, among the exhaust dampers 300 of each floor, the exhaust dampers of the other floors except for the exhaust dampers 300 of the upper two floors including the fire floor F. The operation of the manual control unit 340 provided in 300 may be blocked. As described above, in the present embodiment, the number of floors of the exhaust damper 300 in which the operation of the manual control unit 340 is not blocked in the event of a fire depends on whether the number of floors of the high-rise building 10 is less than or equal to 20 floors. Each set to two or three floors, but the manual control unit 340 provided in the exhaust damper 300 of the fire floor (F) can be set to operate without fail.

Accordingly, in the present embodiment, the performance of the exhaust blower 42 may be determined according to the total exhaust capacity of the exhaust damper 300 capable of being manually operated by the manual control unit 340 when a fire occurs in the high-rise building 10 . That is, since the unit cost of the exhaust blower 42 increases as the performance of the exhaust blower 42 increases, the exhaust blower 42 There is a need to optimize the performance of ) to the design conditions of the ventilation system 100. Therefore, in the present embodiment, the performance of the exhaust blower 42 is determined to stably drive the exhaust dampers 300 of two or three floors, which can be manually operated by the manual control unit 340, in case of fire, so that the high-rise building ( 10) is preferred.

Referring to FIGS. 1 to 3 , the fire detector 400 according to the present embodiment can detect a fire occurring in the interior 26 of each floor in real time. The fire detector 400 as described above may include a smoke detection sensor installed in the indoor unit 26 of each floor. That is, the fire detector 400 of each floor can detect fire smoke G generated in the indoor 26 of each floor when a fire occurs and transmit a fire detection signal to the repeater 810 of each floor.

1 to 3, the differential pressure sensor 500 of the present embodiment measures the pressure between the control area 12 and the exhaust area 14 to detect the differential pressure between the control area 12 and the exhaust area 14. can do. In particular, since the exhaust area 14 has a structure consisting only of the indoor area 26, the differential pressure sensor 500 uses the differential pressure between the ventilation area 12 and the exhaust area 14 to enter the indoor door 27 of the exhaust area 14. It is also possible to detect whether or not the . For example, if the differential pressure detected by the differential pressure sensor 500 is greater than a set value, it may be determined that the indoor door 27 of the exhaust area 14 is open, and if the differential pressure detected by the differential pressure detector 500 is less than the set value, it may be determined that the indoor door 27 is open. It can be determined that the indoor door 27 of the zone 14 is closed.

On the other hand, the differential pressure sensor 500 may be provided in a structure in which the control area pressure sensor 510 and the indoor pressure sensor 520 are connected to a differential pressure sensor (not shown) inside the damper controller 230 through an air pipe. there is.

The control zone pressure sensor 510 is provided in the shape of a hose to transmit the pressure of the control zone 12 to the differential pressure sensor, and one end is exposed to the front of the differential pressure damper housing 210 of the differential pressure damper 200. It can be, the other end can be connected to the differential pressure sensor provided in the damper controller 230 of the differential pressure damper (200). The indoor pressure sensor 520 is provided in the shape of a hose to transmit the pressure of the indoor 26 to the differential pressure sensor, and one end may be disposed indoors 26, and the other end is a damper controller of the differential pressure damper 200 It can be connected to the differential pressure sensor provided in 230. The differential pressure sensor may measure the differential pressure in real time using the pressure detected by the control area pressure sensor 510 and the indoor pressure sensor 520 .

The differential pressure sensor 500 described above is described as being disposed in the first differential pressure damper 201 installed in the accessory room 20 among the first differential pressure damper 201 or the second differential pressure damper 202, but is not limited thereto. Depending on the design conditions and circumstances of the smoke control system 100, it may be disposed in the second differential pressure damper 202 or may be disposed in both the first and second differential pressure dampers 201 and 202.

Referring to FIGS. 1 and 3 , the smoke control system 100 of the high-rise building 10 according to an embodiment of the present invention may further include a composite damper 600 and a return damper 700.

Composite damper 600 can adjust the air supply amount of the external air (A) supplied to the air supply wind degree (30) from the air supply blower (32). The composite damper 600 may be disposed between the outlet of the air supply blower 32 and the air supply wind road 30.

For example, the composite damper 600 includes a manual damper unit 610 in which the opening amount is manually adjusted by a worker when the composite damper 600 is installed, and the opening amount is automatically adjusted according to various fire situations in the event of a fire in a high-rise building 10 It may include an automatic damper unit 620 controlled by . In the manual damper unit 610 and the automatic damper unit 620 as described above, the damper blades for adjusting the opening amount of the manual damper unit 610 and the automatic damper unit 620 according to the rotation angle of the damper blades are rotatable can be placed. For reference, the composite damper 600 is a long-extended suction duct 630 on the basement floor of the high-rise building 10 to deliver the external air A sucked from the outside of the high-rise building 10 to the other side of the air supply wind duct 30. ) can be placed on.

Return damper 700 may recover a portion of the external air (A) supplied to the composite damper 600 from the outlet of the air supply blower 32 to the inlet of the air supply blower (32). Therefore, when the return damper 700 is operated, the external air (A) supplied from the air supply blower 32 to the composite damper 600 is reduced and the external air (A) delivered to the composite damper 600 is significantly reduced. It can be supplied to the supply air flow 30, and when the operation of the return damper 700 is stopped, the external air (A) supplied from the air supply blower 32 to the composite damper 600 increases and is transmitted to the composite damper 600 It is possible to supply the external air (A) to the supply air flow rate 30 in a significantly increased state. As described above, the return damper 700 changes the supply amount of external air (A) delivered to the composite damper 600 to change the supply amount of external air (A) supplied to the air supply air passage 30 by the composite damper 600. can be further refined.

The return damper 700 as described above is provided on the return airway 710 connected to the suction duct 630, and both ends of the return windway 710 may be connected to the suction duct 630 in communication. At this time, one end of the return air flow 710 is disposed between the outlet side of the air supply blower 32 and the composite damper 600, and the other end of the return air flow 710 is disposed on the inlet side of the air supply blower 32. .

1 and 3, the smoke control system 100 of a high-rise building 10 according to an embodiment of the present invention operates the smoke control system 100 through a repeater 810 and a receiver 820 on each floor. A control unit 800 for controlling may be further included.

The repeater 810 of each floor transmits signals about the detection results of the fire detector 400 and the differential pressure detector 500 installed on each floor of the high-rise building 10, the operating state of the differential pressure damper 200 and the exhaust damper 300, and the like. received and transmitted to the receiver. Therefore, the repeater 810 of each floor is preferably disposed in the control area 12 of each floor.

The receiver 820 may receive all of the various signals relayed by the repeater 810 of each floor and provide the received signals to the control unit 800 .

The controller 800 is a device for controlling the operation of the smoke control system 100 and may be installed as a separate component in the smoke control system 100, but in this embodiment, a specific layer (eg, 3 It will be described as being provided as the damper controller 230 of the differential pressure damper 200 installed on the first floor or at least one of the fourth floors). The control unit 800 may control the operation of the supply air blower 32 and the exhaust blower 42 through a signal from the receiver 820 .

A control method for the ventilation system 100 of the high-rise building 10 according to an embodiment of the present invention configured as described above is as follows.

4 to 6, the smoke control method of the smoke control system 100 according to an embodiment of the present invention includes a ventilation area including an indoor area 26 connected to the ventilation area 12 of each floor of a high-rise building 10. The step of detecting the fire in (14) (see the drawing of FIG. 4), the step of detecting the pressure in the ventilation area 12 and the exhaust area 14 (see the drawing of FIG. 4), the fire in the exhaust area 14 If generated, actuating the differential pressure damper 200 installed in the smoke control area 12 to adjust the pressure in the smoke control area 12 (see the drawings of FIGS. 4 and 5), smoke exhaust of the fire layer F where the fire occurred Discharging the fire smoke (G) generated in the exhaust area 14 to the outside by operating the exhaust damper 300 installed in the zone 14 (see the drawing of FIG. 5), and the exhaust area of the fire floor (F) When the pressure in (14) falls below the set pressure, a step of stopping the operation of the exhaust damper (300) installed in the corresponding exhaust area (14) may be included (refer to the drawing of FIG. 6).

In the step of detecting the fire in the ventilation area 14 (see the drawing of FIG. 4), the fire smoke G of the indoor 26 is detected using the fire detectors 400 on each floor, and the fire detectors 400 on each floor ), whether or not a fire has occurred is derived through the detection result. At this time, the manual control unit 340 provided on the exhaust damper 300 of each floor maintains an operable state only with the manual control unit 340 provided on the three exhaust dampers 300 of the upper layer including the fire floor F, and other The manual control unit 340 of the exhaust damper 300 installed on the other floor of the block the operation.

As shown in FIG. 4, the 4th floor of the high-rise building 10 corresponds to the fire floor F, and the manual control unit 340 of the exhaust damper 300 installed on the 4th and 5th floors of the high-rise building 10 remains operational. That is, on the fifth floor, the occupant manually operates the manual control unit 340 to manually operate the exhaust damper 300.

Specifically, when a fire is detected in the step of detecting a fire in the ventilation area 14, when the high-rise building 10 has 20 or more floors, excluding the exhaust dampers 300 of the upper three floors including the fire floor F. The operation of the manual control unit 340 of the exhaust damper 300 on another floor may be blocked. In this embodiment, since it is a high-rise building 10 with 20 or more floors, a manual control unit for the exhaust dampers 300 installed on the three upper floors including the exhaust dampers 300 on the fire floor F (eg, the exhaust dampers on the 5th floor) The exhaust damper 300 can be operated by manipulating 340.

In the step of detecting the pressure between the control zone 12 and the exhaust zone 14 (see the drawing of FIG. 4 ), the differential pressure between the control zone 12 and the exhaust zone 14 is sensed using the differential pressure detector 500. .

In the step of adjusting the pressure of the smoke-reducing area 12 (see the drawings of FIGS. 4 and 5), the differential pressure damper 200 supplies external air A to the smoke-reducing area 12 so that the pressure is higher than that of the exhausting area 14. The pressure in the control zone 12 is controlled by the pressure.

As an example, the differential pressure damper 200 provides the differential pressure between the ventilation zone 12 and the exhaust zone 14 as a preset first differential pressure (eg, in the range of 40 to 60 Pa) when a fire occurs in the high-rise building 10 (FIG. 4 Refer to the drawing of), when the indoor door 27 of the exhaust area 14 is opened on the fire floor (F), the differential pressure damper 200 installed on the fire floor (F) is set in advance toward the exhaust area 14 ( For example, 0.7 m/s or more) is provided (see the drawing of FIG. 5).

In the step of discharging the fire smoke (G) generated in the exhaust area 14 to the outside (see the drawing of FIG. 5), the exhaust damper 300 is operated to Discharge the fire smoke (G) to the outside. At this time, when the indoor door 27 or the indoor window 26a is open, even if the exhaust damper 300 discharges the fire smoke G of the indoor 26, the pressure of the indoor 26 does not fall below the set pressure. Without, accordingly, the exhaust damper 300 continues to operate to continuously discharge the fire smoke (G).

In the step of stopping the operation of the exhaust damper 300 (see the drawing of FIG. 6), when the pressure in the exhaust area 14 falls below the set pressure while the indoor door 27 of the fire floor F is closed, exhaust The operation of the damper 300 is stopped. As described above, when the pressure in the indoors 26, which is the ventilation area 14 of the fire floor F, falls to negative pressure, the negative pressure in the indoors 26 acts in the opposite direction to the opening direction of the indoor doors 27, causing the indoor doors 27 to open. There is a situation where you cannot open or it is very difficult to open. Therefore, when the pressure in the exhaust area 14 of the fire floor F falls below the set pressure, the operation of the exhaust damper 300 is stopped to remove the resistive force acting on the indoor door 27.

As described above, when the pressure in the exhaust area 14 in the fire floor (F) falls below the set pressure, the indoor door 27 of the exhaust area 14 is opened in the fire floor (F), and the differential pressure damper 200 This may occur when the indoor door 27 of the exhaust area 14 is closed again while operating in the smoke-free wind speed mode. In particular, in the smoke-free wind speed mode of the differential pressure damper 200, not only is a fire occurring in the indoor 26 of the fire floor F, but the pressure of the external air A supplied from the differential pressure damper 200 is very high, so the differential pressure A very large pressure is temporarily applied to the indoor door 27 until it is switched to the mode again. Accordingly, the pressure according to the smoke wind speed of the differential pressure damper 200 is applied to the indoor door 27, and the negative pressure by the exhaust pressure of the exhaust damper 300 is applied at the moment when the indoor door 27 is closed. ) The occupant of the room cannot easily open the indoor door 27 in the direction of evacuation, so it may be hindered from quickly escaping from the indoor 26 of the fire floor (F).

FIG. 7 is a schematic diagram of a smoke control system 1000 of a high-rise building 10 according to another embodiment of the present invention, and FIG. It is a view showing the exhaust control area 14.

In FIGS. 7 and 8, the same reference numerals as those shown in FIGS. 1 to 6 denote the same members, and a detailed description thereof will be omitted. Hereinafter, differences from the smoke control system 100 shown in FIGS. 1 to 6 will be mainly described.

7 and 8, a smoke control system 1000 of a high-rise building 10 according to another embodiment of the present invention is different from the smoke control system 100 of the high-rise building 10 shown in FIGS. 1 to 6 The difference is that the settings of the ventilation area 12 and the exhaust area 14 are different, and accordingly, the installation structures of the differential pressure damper 200 and the exhaust damper 3000 are also different from each other.

In this embodiment, the ventilation area 12 can be set to the auxiliary room 20, and the ventilation area 14 can be set to the indoors 26 and the corridor 28. Accordingly, in the differential pressure damper 200, only the differential pressure differential damper 200 corresponding to the first differential pressure damper 201 shown in FIG. 2 can be installed in the accessory room 20, and the second differential pressure damper shown in FIG. 2 (202) may be omitted. Therefore, in this embodiment, the supply air flow 30 may be formed in a single number, and the differential pressure damper 200 may also be installed in the auxiliary chamber 20.

Here, the differential pressure sensor 500 may measure the differential pressure between the auxiliary room 20, which is the control area 12, and the corridor 28, which is the exhaust area 14. Therefore, the control area pressure sensor 510 of the differential pressure sensor 500 may be disposed in the differential pressure damper 200 to measure the pressure in the auxiliary room 20, and the corridor pressure sensor 522 of the differential pressure sensor 500 may be disposed in the corridor 28 to measure the differential pressure between the corridor 28 and the accessory room 20. At this time, the differential pressure damper 200 generates a first differential pressure between the annex room 20 and the corridor 28 in the event of a fire, or when the corridor door 29 of the fire floor F is opened, the corridor 28 in the annex room 20 ) can generate a smoke wind velocity towards the

In addition, the exhaust damper 3000 is installed in the annex 20 and the corridor 28, and the exhaust duct 3300 extends long from the exhaust air passage 40 of the annex 20 to the inside of the corridor 28. can Therefore, the exhaust damper 3000 can discharge the fire smoke G generated in the corridor 28 to the outside when a fire occurs.

For example, the exhaust damper 3000 of this embodiment may include an exhaust damper housing 3100, an exhaust unit 3200, an exhaust duct 3300, and a manual control unit 3400.

As shown in FIG. 8, the exhaust damper housing 3100, the exhaust unit 3200, the exhaust duct 3300, and the manual control unit 3400 of this embodiment are the same as the exhaust damper housing 310 shown in FIG. When compared to the base 320, the exhaust duct 330, and the manual control unit 340, the detailed configuration and operation method are the same, but the structure installed in the ventilation area 12 and the exhaust area 14 has a difference.

That is, the exhaust damper housing 3100 may be installed in the auxiliary room 20 or corridor 28, which is the control area 12, and the exhaust unit 3200 is rotatable in the exhaust hole formed in the exhaust damper housing 3100. The exhaust duct 3300 can be extended from the accessory room 20 to the corridor 28, and the manual control unit 3400 can be separately installed on the wall of the place where the exhaust damper housing 3100 is installed. .

Therefore, the exhaust damper 3000 is not a structure for discharging the fire smoke G of the indoor 26 to the outside, but a structure for absorbing the fire smoke G of the corridor 28 and discharging it to the outside.

On the other hand, the smoke control system 1000 of this embodiment is applied to the high-rise building 10 in which the smoke control area 12 and the ventilation area 14 are set differently compared to the smoke control system 100 shown in FIGS. 1 to 6 By doing so, it can be easily applied to various types of high-rise buildings 10 in which the ventilation area 12 and the ventilation area 14 are properly set, as in the present embodiment.

In addition, the smoke control system 1000 of the present embodiment is a structure in which the arrangement structure of the pressure differential damper 200 and the exhaust damper 3000 is changed compared to the smoke control system 100 shown in FIGS. 1 to 6, and is limited thereto. It is not, and may be variously changed according to the structure of the ventilation area 12 and the ventilation area 14 and the design conditions of the smoke control system 1000. For example, in this embodiment, the exhaust damper 3000 may be provided as a first exhaust damper and a second exhaust damper to discharge the fire smoke G of the corridor 28 and the indoor 26, respectively, and a differential pressure sensor 500 may be provided to detect not only the pressure in the annex 20 and the corridor 28 but also the pressure in the corridor 28 and the indoor unit 26 .

As described above, the embodiments of the present invention have been described with specific details such as specific components and limited embodiments and drawings, but these are provided only to help a more general understanding of the present invention, and the present invention is limited to the above embodiments. It is not, and those skilled in the art can make various modifications and variations from these descriptions. Therefore, the spirit of the present invention should not be limited to the described embodiments and should not be determined, and all things equivalent or equivalent to the claims as well as the following claims belong to the scope of the present invention.

10: Skyscrapers
12: research area
14: Exhaust area
20: annex
26: Indoors
28: Corridor
30: supply air flow
40: Exhaust airflow
100, 1000: ventilation system
200: differential pressure damper
300: exhaust damper
400: fire detector
500: differential pressure sensor
600: composite damper
700: return damper
A: outside air
F: fire layer
G: Fire Smoke

Claims (12)

a differential pressure damper installed in each floor of a high-rise building and controlling the pressure of the control area in case of fire; and
An exhaust damper installed in the ventilation area and the ventilation area to discharge the fire smoke of the ventilation area including the indoor area connected to the ventilation area to the outside of the high-rise building; includes,
The operation of the exhaust damper is controlled according to a change in the internal pressure of the exhaust area,
The differential pressure damper
In the event of a fire, when the entrance door of the exhaust area is closed on all floors, it operates in a differential pressure mode to maintain the differential pressure between the ventilation area and the exhaust area at a preset first differential pressure,
When the door of the ventilation area for the fire floor where the fire has occurred is opened, it operates in a smoke wind speed mode that generates a preset smoke wind speed from the ventilation area of the fire floor toward the exhaust area,
The exhaust damper
When the differential pressure damper in the fire layer is operated in the differential pressure mode or the smoke control wind speed mode, when the pressure in the exhaust area of the corresponding fire layer is greater than the set pressure, the smoke control wind speed in the smoke control area is opened when the door of the exhaust area is opened. It is operated to discharge the air introduced into the exhaust area and the fire smoke generated in the exhaust area,
When the pressure in the exhaust area of the fire floor is lowered to a set pressure or less in a state in which the door of the exhaust area is closed in the fire floor, the operation is stopped so as not to interfere with the opening of the door of the exhaust area. ventilation system in the building.
According to claim 1,
a fire detector installed inside the building to detect the occurrence of a fire inside the building; And a differential pressure sensor for sensing a differential pressure between the ventilation area and the exhaust area; further comprising,
The exhaust damper operates when a fire is detected by the fire detector of the corresponding floor, but stops operating when the pressure in the exhaust area detected by the differential pressure detector of the corresponding floor is less than a set pressure. system.
According to claim 2,
The set pressure is a ventilation system of a high-rise building, characterized in that set to a negative pressure that prevents the door from opening when the door of the ventilation area is opened.
delete delete a differential pressure damper installed in each floor of a high-rise building and controlling the pressure of the control area in case of fire; and
An exhaust damper installed in the ventilation area and the ventilation area to discharge the fire smoke of the ventilation area including the indoors connected to the ventilation area to the outside of the high-rise building; includes,
The operation of the exhaust damper is controlled according to a change in the internal pressure of the exhaust area,
The exhaust damper of each floor is provided with a manual control unit for a user to manually operate the operation,
When a fire occurs in the high-rise building, the operation of the manual control unit provided in the exhaust damper of the other floor except for the exhaust damper disposed on the fire floor among the exhaust dampers of each floor is blocked.
a differential pressure damper installed in each floor of a high-rise building and controlling the pressure of the control area in case of fire; and
An exhaust damper installed in the ventilation area and the ventilation area to discharge the fire smoke of the ventilation area including the indoors connected to the ventilation area to the outside of the high-rise building; includes,
The operation of the exhaust damper is controlled according to a change in the internal pressure of the exhaust area,
The exhaust damper of each floor is provided with a manual control unit for a user to manually operate the operation,
In the case of a fire in the high-rise building of 20 or more floors, the operation of the manual control unit provided in the exhaust dampers of other floors except for the exhaust dampers of the upper three floors including the fire floor among the exhaust dampers of each floor is blocked. Characterized in that Ventilation system for high-rise buildings.
a differential pressure damper installed in each floor of a high-rise building and controlling the pressure of the control area in case of fire; and
An exhaust damper installed in the ventilation area and the ventilation area to discharge the fire smoke of the ventilation area including the indoors connected to the ventilation area to the outside of the high-rise building; includes,
The operation of the exhaust damper is controlled according to a change in the internal pressure of the exhaust area,
The exhaust damper of each floor is provided with a manual control unit for a user to manually operate the operation,
In the case of a fire in the high-rise building of less than 20 floors, the operation of the manual control unit provided in the exhaust dampers of the other floors except for the exhaust dampers of the upper two floors including the fire floor among the exhaust dampers of each floor is blocked. ventilation system for high-rise buildings.
According to any one of claims 6 to 8,
An exhaust blower connected to the exhaust damper of each layer to provide exhaust force to the exhaust damper of each layer; further comprising,
The ventilation system of the high-rise building, characterized in that the performance of the exhaust blower is determined according to the total exhaust capacity of the exhaust dampers that can be manually operated by the manual control unit when a fire occurs in the high-rise building.
Detecting a fire in a ventilation area including an indoor area connected to a ventilation area on each floor of a high-rise building;
Sensing the pressure of the ventilation zone and the exhaust zone;
Adjusting the pressure of the ventilation area by operating a differential pressure damper installed in the ventilation area when a fire occurs in the ventilation area;
Discharging fire smoke generated in the exhaust area to the outside by operating an exhaust damper installed in the exhaust area of the fire floor where the fire has occurred; and
Stopping the operation of the exhaust damper installed in the exhaust area when the pressure in the exhaust area of the fire layer falls below a set pressure;
including,
The step of adjusting the pressure of the smoke control area is to provide a differential pressure between the smoke control area and the exhaust area as a preset first differential pressure, or when the door of the smoke control area is opened in the fire floor, the differential pressure damper installed on the fire floor Provides a preset smoke wind speed toward the exhaust area,
A control method of a smoke control system, characterized in that performing the step of stopping the operation of the exhaust damper when the pressure in the exhaust area falls below a set pressure in a state in which the entrance door of the exhaust area is closed in the fire layer.
delete Detecting a fire in a ventilation area including an indoor area connected to a ventilation area on each floor of a high-rise building;
Sensing the pressure of the ventilation zone and the exhaust zone;
Adjusting the pressure of the ventilation area by operating a differential pressure damper installed in the ventilation area when a fire occurs in the ventilation area;
Discharging fire smoke generated in the exhaust area to the outside by operating an exhaust damper installed in the exhaust area of the fire floor where the fire has occurred; and
Stopping the operation of the exhaust damper installed in the exhaust area when the pressure in the exhaust area of the fire layer falls below a set pressure;
including,
The exhaust damper of each floor is provided with a manual control unit for a user to manually operate the operation,
When a fire is detected in the step of detecting a fire in the ventilation area, when the high-rise building has 20 or more floors, operation of the manual control unit of the exhaust dampers of other floors except for the exhaust dampers of the upper three floors including the fire floor and blocking the operation of the manual control unit of the exhaust dampers of other floors except for the exhaust dampers of the upper two floors including the fire floor when the high-rise building is less than 20 stories. method.

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