KR102413971B1 - Differential pressure and smoke blocking damper module for building of air supply system and its operation method - Google Patents

Abstract

The present invention relates to a management system for an auxiliary room supply pressurization facility, which is a fire extinguishing activity facility for blocking smoke flowing into an auxiliary room from the room in the event of a building fire, and more particularly, is supplied with a certain amount of air through a duct to an attached room by a blower. Each floor is provided to supply fresh air from outside air to each floor to supply the required air volume of the corresponding room, and a leakage damper part for adjusting the pressure in the annex of the corresponding floor to a preset pressure by adjusting the constant supply to each floor, the corresponding floor In the event of a fire, a smoke damper unit that is opened and supplies a supplemental amount to block smoke flowing into an accessory room from the room together with the leakage damper unit, and a differential pressure and smoke control control unit for controlling the leakage damper unit and the smoke damper unit; includes
According to the present invention as described above, the external air normally supplied to the blower is controlled by the leakage damper unit to control the supply amount to the corresponding floor to maintain the pressure of the annexed room at a preset pressure, and when a fire occurs, the leakage damper unit and the smoke damper unit By controlling the pressure of the ancillary room and the required airflow for smoke prevention, it is possible to prevent fire smoke from flowing into the annex room to prevent smoke inhalation, as well as to secure an escape route.
In addition, the leakage and smoke dampers are opened only in the fire floor where the smoke prevention air volume is required by the first and second logic circuits, and only the leakage damper is opened in the non-fire floor. Thus, it is possible to effectively supply the smoke-proofing air volume.

Description

Differential pressure and smoke blocking damper module for building of air supply system and its operation method

The present invention relates to a differential pressure and smoke-proof damper module, and more particularly, to control the pressure in an annex on the corresponding floor to a preset pressure by a differential pressure damper module, and supplies For buildings with a supply pressure system that provides a safe environment and, in the event of a fire, can secure a safe space by supplying the smoke-free air volume required in the annex according to the opening of the indoor space entrance door to block the inflow of fire smoke into the annex room It relates to a differential pressure and smoke damper module and an operating method.

In general, due to fire in the stair room and annex of special evacuation stairs of facilities such as high-rise buildings (or high-rise apartment houses), emergency elevator platform or evacuation elevator platform, and evacuation safety area (hereinafter referred to as “smoking room”) When all doors are closed to prevent generated smoke or harmful gas from flowing into the ventilation accessory room, the leakage of the door gap is supplied to the accessory room to maintain the internal pressure of the ventilation accessory room at a constant set pressure, and also to open the door of the ventilation accessory room. In order to obtain a smoke-proof wind speed that can effectively prevent the inflow of smoke from indoors into the control area, a damper is installed.

As disclosed in the conventional Korean Patent No. 1383144, a single duct is used instead of using a separate air supply type ventilation system that separates the duct to supply the leakage and replenishment amount to the auxiliary room, which is the control area of a high-rise building. All evacuation doors are closed by installing a damper by separating the leakage and replenishment amount, and installing an additional air release damper in the supply airflow path to operate the pressure within the replenishment amount supply airflow within the appropriate design range. Since only the leakage amount is constantly supplied from By quickly opening/closing the (Air Release Damper), the leakage and replenishment amount (smoke) are separated with an exhaust damper (Air Release Damper) for regulating the pressure of the supply air that can quickly control the appropriate pressure between the annex and the interior. An air supply type ventilation system and an operation control method thereof are provided.

However, the conventional system controls the differential pressure and the smoke-proof wind speed through one damper of the same standard installed on the floor where the fire occurred and the floor where the fire does not occur. The differential pressure is maintained, and when the door is opened and the differential pressure drops, it operates to maintain the differential pressure and act as a smoke prevention wind speed.

At this time, when a plurality of doors are opened from the non-fire floor, there is a problem in that the amount of air blown is concentrated on the non-fire floor where the doors are opened, and the air cannot be blown to the actual fire floor, so that the smoke prevention function cannot be performed.

In particular, as one damper controls the amount of airflow, there is no restriction on the amount of airflow. In order to solve this problem, the specifications of the dampers should be different for each floor and each function according to the purpose of use. There is a problem that the smoke protection function cannot be digested.

Accordingly, in the event of a fire, as well as in normal times, it is possible to improve the efficiency of supply of smoke-free air to the corresponding floor and block the inflow of smoke to the annex to secure an escape route. There is an urgent need for development.

What has been described above is to specify the basic composition and basic conditions of the air supply pressure control system in the annex. Considering the pattern of fire occurrence and evacuation, the pressure state of the annex for each stage after a fire is analyzed by defining the most effective performance. In order to select an appropriate damper and to build the most economical system, a design technique different from the conventional one is required.

For the design technique, refer to the European regulation "BS EN 12101-6:2005" as a foreign reference and apply it to the load calculation method. For the air distribution technology of the US, "SMACNA Construction Standard" and "SMACNA HVAC Systems Duct Design" 4th Edition were referenced, and the US "Basic Formula of Damper Calculator manufactured by Honeywell Company" to select the size of the damper cited, and some Japanese literature was cited.

Accordingly, the present invention is derived to solve the above problems, and is provided to supply external air supplied at a certain amount of air to the duct inside the building by a blower to the annexes of each floor to control the pressure of the annexes. , Leakage damper for adjusting the constant supply to the floor to adjust the pressure of the annex on the floor to a preset pressure Controlling the supply amount of external air normally supplied to the blower to the corresponding floor by the leakage damper part, including a smoke damper part for blocking, and a differential pressure and smoke control part for controlling the leak damper part and the smoke damper part to control the pressure of the annexed room Maintains a preset pressure, and in the event of a fire, the pressure in the annex is controlled by the leak damper and smoke damper to prevent fire smoke from flowing into the annex to prevent smoke inhalation and to secure an escape route. It is an object to provide a differential pressure damper module for buildings.

In the leak damper for controlling the pressure of the annex and the smoke-proof damper for blocking the inflow of smoke from the living room, the airflow (airflow) is formed by the pressure difference between the duct pressure and the annex, and the duct pressure in the uppermost part of the building and the Since there is a difference in the duct pressure, there is a difference in the amount of air flowing through the damper for each floor. In order to control this to an even air volume, the size of the damper is different for each section by design calculation (load according to the type of building). The purpose is to provide a module.

The basis of the duct design used in the supply pressure ventilation facility is the pressure design. When the air pressurized from the blower passes on the duct path, the pressure is reduced by the resistance of the duct. There are many differences, and the amount of air passing through the damper varies depending on the duct pressure on each floor and the pressure condition of the annex.

In addition, when all doors are closed, the amount of leakage through the indoor (living room) door, annexed room window, elevator door, and stair door, and when the indoor (living room) door and stair door are opened from the fire floor, the pressure in the stairwell drops, so the non-fire floor Leakage through stair doors in ancillary rooms increases.

The change at this time is analyzed with an analytical technique, applied to the design technique, and reflected in the design of the supply pressure ventilation facility.

The present invention for achieving the above object is provided to each floor to supply the outside air supplied at a certain amount of air to the duct inside the building by the blower to adjust the pressure of the annex on the corresponding floor, which is required when a fire occurs on the floor. A leak damper part for adjusting the pressure of the annex to a preset pressure by adjusting the leakage supply amount, and when a fire occurs on the floor, it is opened and supplied with the leak damper part to block the inflow of smoke from the room into the ancillary room It includes a smoke-proof damper unit, and a differential pressure and smoke control unit for controlling the leakage damper unit and the smoke-proof damper unit.

Preferably, the duct includes a connection duct for blowing outside air to each layer, and the leak damper is provided in the differential pressure damper frame so as to be positioned above the smoke damper and is installed in the connection duct.

And the effective area of the leakage damper is 10 to 25% of the effective area of the smoke-proof damper, and is formed by the ratio of the leakage amount due to the load according to the type of the annex of the building.

In addition, the leakage damper part is a leak damping space part formed long in the left and right directions inside the upper end of the differential pressure damper frame, and forms a pair to rotate simultaneously in the mutual or mutually opposite directions, and the damper wings are installed in the longitudinal (vertical) direction. , a plurality of leakage damper blades provided at regular intervals in the left and right directions in the leakage damping space portion, and controlled by the differential pressure and smoke control unit, by simultaneously rotating the leakage damper blades forming each pair in mutual or mutually opposite directions and a leakage damper driving unit for controlling the amount of air blowing in the leakage damping space.

And the smoke-proof damper part is formed inside the middle part and the lower end of the differential pressure damper frame, has the same width as the left and right widths of the leakage damping space part, and the smoke-proof damping space part is formed long in the vertical direction, mutually or in opposite directions to be rotated at the same time, the damper blades are installed in the lateral (horizontal) direction, and a plurality of smoke-proof damper blades provided in the vertical direction in the smoke-proof damping space are controlled by the differential pressure and smoke-proof control unit, and each pair is formed and a smoke-proof damper driving unit configured to simultaneously rotate the smoke-proof damper blades in mutual or opposite directions to control the amount of air blowing in the smoke-proof damping space.

In addition, a pressure sensor for measuring the pressure of the annex, a fire detection sensor for detecting a fire in the building, and a door opening/closing sensor for detecting whether an indoor access door provided in the annex is opened or closed, is further provided, the The differential pressure and smoke control unit receives the signal of the pressure sensor and controls the leakage damper in a state in which the smoke damper is closed so that a preset pressure of the annexed room is maintained, and the signal of the fire detection sensor and the signal of the door opening and closing sensor to control the smoke damper unit through a logic circuit.

In addition, at least one indoor access door is provided in the auxiliary room, the fire detection sensor is provided in each room, and the door opening/closing sensor is provided in each access door.

In addition, the logic circuit includes a plurality of (or singular) first logic circuits for transmitting a signal when a signal of a fire detection sensor in the room and a signal of a door opening/closing sensor of the corresponding door are detected at the same time, and the a second logic circuit for transmitting a signal for driving a smoke damper to the differential pressure and smoke control unit when receiving one or more signals from among the first logic circuits, wherein the differential pressure and smoke control unit includes the second When the smoke control signal of the logic circuit is received, the smoke damper part is opened while the open state of the leak damper part is maintained to supply a smoke-free air volume to the ancillary room so that fire smoke does not flow into the ancillary room.

And when the differential pressure and smoke control unit receives the differential pressure control signal of the second logic circuit, the smoke damper is opened while the open state of the leakage damper is maintained, so that fire smoke flows from the room to the ancillary room. block that

In addition, the specification of the differential pressure and smoke damper module is based on the load calculated according to the type of the annex, and the leakage damper unit determines the leakage amount required by the non-fire floor based on a pressure of 70% or more of the set pressure standard. The effective area is selected by the amount of leakage calculated from the fire layer, and the smoke damper part selects the effective area according to "smoke-proof air volume - air volume passing through the leakage damper when the pressure in the annex is the minimum pressure = air volume passing through the smoke damper", and the blower's The selection is based on “When the pressure in the annex room is 70%, the air volume supplied by the differential pressure damper × (the number of annex rooms - the number of applications of the smoke damper) = the amount of leakage” and “the amount of smoke-proof air in the regulation × the number of applications of the smoke-proof damper”, “the amount of air supplied by the non-fire floor evacuation” Partially calculated as the number of door openings by the opening rate × (Leakage damper airflow when the accessory chamber pressure is the lowest pressure - Leakage damper airflow when the set pressure is 70% = Air volume additionally required for evacuation", and the airflow volume of the leak damper The amount of air blown by the smoke damper, the sum of the air volume of the blower, and the duct leakage and blower air volume selection safety factor required by the Fire Protection Act are applied to select.

And the accessory room, the elevator door, and a louver for discharging the outside air that has passed through the differential pressure and the smoke damper module to the accessory room, the leak damper part and the smoke damper part considering the blowing resistance value by the louver, , the amount of inflow through the elevator door was not considered in the selection of the airflow amount of the smoke-proof damper.

In addition, the leakage damper for controlling the pressure in the annex and the smoke-proof damper for blocking the inflow of smoke from the living room form an airflow (airflow) by the pressure difference between the duct and the annex, so the duct pressure in the uppermost part of the building and the lowermost floor According to the negative duct pressure, the required size of the damper installed on each floor is determined by design calculation, and the size calculated by the design calculation is installed by the damper module for each section, and TAB (Test, Adjust and Balancing) is the same as the design calculated value (area). ) to adjust the airflow to an even air volume, and then control it by the differential pressure and smoke-proof control unit.

The above shows the approximate ratio of the leak damper and the smoke damper analyzed with respect to the load calculated by the design technique, and when the pressure state of the annex due to the fire is analyzed, the case where all the doors are closed and the interior of the fire floor (living room) ) and the stair door are open, it is divided into the case where the indoor (living room) door and the stair door are open for evacuation from the non-fire floor.

When all the doors are closed, the auxiliary chamber is operated proportionally to an arbitrarily set value and is maintained by the degree of opening of the leak damper at the set pressure.

When the indoor (living room) door and the stair door of the non-fire floor are opened by evacuation, the fire floor, the floor above, and the stairway door are opened. Maintains the minimum pressure for generating airflow to block the inflow of air, and in the non-fire floor, the smoke damper is closed and only the leak damper is open. (nearly close to atmospheric pressure).

At this time, the stairway pressure when all the doors are closed is slightly lower than the pressure in the annex, but when the indoor (living room) door and stair door of the non-fire floor are opened by fire floor and evacuation, the minimum pressure for airflow It can be seen by the simulation calculation for each step that the pressure is lower than the set pressure.

As the leakage of the stair door increases due to the drop in the stair pressure, the required leakage supply for the non-fire floor increases, and the pressure applied to the design is 70 of the set pressure when all doors are closed and the set pressure according to the relationship between the non-fire floor % or more, if the leak rate in the case of the set pressure is compared with the leak rate in the case of 70% or more of the set pressure of the non-fire floor, the leak rate of the non-fire floor is larger. If is selected, it has a control rate of about 60% (it varies slightly depending on the number of doors in the room (living room)) when all the doors are closed.

This has the same effect as the result of supplying the air volume by applying the safety factor to the leak rate coefficient when all the doors are closed with a slight difference in control rate.

Here, the size of the smoke-proof damper for supplying the smoke-proof air volume from the fire floor becomes "Smoke-proof air volume - supply leakage amount at the lowest pressure in the annex = selected smoke-proof damper air volume".

The smoke damper opens only on the fire floor and is closed because there is no fire signal on the other floors. , when the pressure in the auxiliary chamber is significantly lower than the set pressure, the leak damper is opened 100% and the pressure in the auxiliary chamber is maintained at 70% of the set pressure.

At this time, to compensate for the error of the coefficient, a slightly higher pressure is reflected in the design calculation to maintain more than 70% of the set pressure.

When the door is opened on a non-fire floor, the annex pressure changes to the lowest pressure (near atmospheric pressure) for airflow generation, so the supply air volume increases as a result of the pressure difference in the duct and in the annex increases, but only the minimum air volume According to the door opening rate for evacuation, “minimum supply air volume by door opening - supply air volume to maintain 70% of set pressure = air volume applied to door opening rate”, this air volume is added to the number of door openings. It is applied to the selection of the air volume additionally required by the blower by multiplying it.

And the outdoor air supply step in which outdoor air is continuously supplied to the path of the duct supplied by the blower to the attached room with all the doors closed, the differential pressure of any one of claims 1 to 9 and the pressure sensor signal of the smoke damper module By receiving and controlling the leakage damper unit, the leakage operation step in which the outside air of the outside air supply step is blown to the corresponding ancillary room and controlled at a certain pressure, and the fire detection sensor signal and the door opening sensor signal of the differential pressure and smoke damper module are received. In this case, it includes a smoke-proof operation step of controlling the smoke-proof damper unit to supply outdoor air of the required amount of smoke-free air to the corresponding annex to prevent the smoke generated from the fire from flowing into the annex.

As described above, according to the differential pressure damper module for a building according to the present invention, the external air normally supplied to the blower is controlled by the leakage damper unit to control the supply amount to the corresponding floor to maintain the pressure in the annex at a preset pressure, and a fire occurs. When all the doors are closed, the leak damper controls the pressure in the annex, and the smoke damper is driven by the door opening and the fire signal to prevent fire smoke from entering the ancillary room to prevent smoke inhalation. It is a very useful and effective invention that makes it possible to secure an escape route.

In addition, the size of the damper is modularized so that the size is different for each floor, and it is set by TAB operation to supply an equal amount of airflow. It is a very useful and effective invention that enables the amount of air blown for smoke protection supplied to the fire floor to be supplied even when open, which is required by design calculation.

Since the design technique when the new product manufactured by the present invention is applied is applied to the design of the duct and the selection of the blower considering the leakage of each annex and the pressure state caused by the operation of the smoke damper, it is more reasonable than the conventional method and has better performance. We present a very useful and effective design technique that can demonstrate

1 is a view showing a differential pressure and smoke-proof damper module for a building according to the present invention,
2 is a view showing the installation state of the differential pressure and smoke damper module according to the present invention,
3 is a view showing a building in which the differential pressure and smoke damper module according to the present invention is installed;
4 is a diagram showing a logic circuit for controlling the differential pressure smoke damper module according to the present invention;
5 is a view showing the flow of the operation stage of leakage and smoke prevention due to the evacuation action.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION The detailed description to be published hereinafter in conjunction with the appended drawings is intended to describe exemplary embodiments of the present invention and is not intended to represent the only embodiments in which the present invention may be practiced. The following detailed description includes specific details in order to provide a thorough understanding of the present invention. However, one of ordinary skill in the art to which the present invention pertains will know that the present invention may be practiced without these specific details.

In some instances, well-known structures and devices may be omitted or shown in block diagram form focusing on key functions of each structure and device in order to avoid obscuring the concept of the present invention.

Throughout the specification, when a part is said to "comprising or including" a certain component, it does not exclude other components unless otherwise stated, meaning that other components may be further included. do. In addition, the term “…unit” described in the specification means a unit that processes at least one function or operation. Also, "a or an", "one", "the" and like related terms are used differently herein in the context of describing the invention (especially in the context of the following claims). Unless indicated or clearly contradicted by context, it may be used in a sense including both the singular and the plural.

In describing the embodiments of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a view showing a differential pressure and smoke-proof damper module for a building according to the present invention, FIG. 2 is a view showing an installation state of a differential pressure and smoke-proof damper module according to the present invention, and FIG. 3 is a differential pressure and smoke-proof damper module according to the present invention It is a view showing a building in which the smoke damper module is installed, FIG. 4 is a view showing a logic circuit for controlling the differential pressure and the smoke damper module according to the present invention, and FIG. It is a drawing showing the flow.

As shown in the drawing, the differential pressure and smoke damper module 10 for a building is provided to supply the external air supplied at a certain amount of air to the duct 30 inside the building by the blower 20 to each floor, respectively, and the corresponding ancillary room 40 ), and includes a leak damper unit 100 , a smoke damper unit 200 , and a differential pressure and smoke control unit 300 .

The leakage damper unit 100 is provided to adjust the pressure of the annex chamber 40 of the corresponding floor to a preset pressure by adjusting the constant supply amount to the corresponding floor.

In addition, the smoke damper unit 200 is opened when a fire occurs on the corresponding floor and is provided together with the leakage damper unit 100 to supply an airflow required to block the inflow of smoke from the annex 40 .

The differential pressure and smoke control unit 300 is provided to control the leakage damper unit 100 and the smoke damper unit 200 .

Here, as shown in FIG. 2, the duct 30 includes a connection duct 32 for blowing fresh air from outside air to each floor to an attached room, and the connection duct 32 is formed as many as the number of floors of the building. .

And the leakage damper part 100 is provided in the differential pressure and smoke-proof damper frame 12 so as to be positioned above the smoke-proof damper part 200 and is provided in the connection duct 32 .

In other words, the differential pressure and smoke damper module 10 is manufactured and installed in a size corresponding to the connection duct 32 , and the effective area for controlling the leakage damper unit 100 is calculated by the amount of leakage of doors and windows. It is formed in 10 to 25% of the effective area for controlling the smoke damper unit 200 according to the size of the applied load.

For example, when the height of the smoke damper unit 200 is manufactured to be 600 mm, the height of the leakage damper unit 100 is manufactured to be 80 to 120 mm.

When the width of the damper of the basic module is 450mm and the size of the wing is 50mm, the leakage damper part 100 is divided into a basic module having 9 blades and 6 modules having at least 4 blades. The damper unit 200 is divided into a basic module having 12 blades and 5 modules having at least 8 blades.

First, the leak damper part 100 includes a leak damping space part 110 , a leak damper wing 120 , and a leak damper driving part 130 .

The leakage damping space 110 is formed elongated in the left and right directions inside the upper end of the differential pressure damper frame 12 .

In addition, the leakage damper blades 120 are paired to rotate simultaneously in the mutual or mutually opposite directions, have an opposed blade type damper form, and install the blades in the longitudinal (vertical) direction, and the leakage damping space portion ( 110) at regular intervals in the left and right directions.

The leak damper driving unit 130 is controlled by the differential pressure between the living room and the annex in the differential pressure and smoke control unit 300, and simultaneously rotates and drives the leakage damper wings 120 forming each pair in mutual or opposite directions to form a leakage damping space. Adjusts the airflow amount of the unit 110 .

This leakage damper driving unit 130 is the same as the conventional method of driving the counter-flow damper blade, so a separate description will be omitted.

And the smoke-proof damper part 200 includes a smoke-proof damping space part 210 , a smoke-proof damper wing 220 , and a smoke-proof damper driving part 230 .

The smoke-proof damping space 210 is formed inside the lower end of the differential pressure and smoke-proof damper frame 12 , has the same width as the left and right widths of the leakage damping space 110 , and is elongated in the vertical direction.

In addition, the smoke-proof damper blades 220 are paired to rotate simultaneously in the mutual or mutually opposite directions, have a damper form of the opposed blade type, and install the blades in the transverse (horizontal) direction, and the smoke-proof damping space part ( 210) is provided in plurality at regular intervals in the vertical direction.

The smoke damper driving unit 230 is controlled by the differential pressure and smoke control unit 300, and simultaneously rotating the smoke damper wings 220 forming each pair in mutual or opposite directions is driven on and off by the smoke damper motor. to control and supply the amount of blown air of the smoke-proof damping space 210 .

This smoke-proof damper driving unit 230 is the same as the conventional method of driving the counter-flow damper blades, so a separate description will be omitted.

Here, as the leakage damper unit 100 is proportionally controlled by the differential pressure and smoke control unit 300 , the auxiliary chamber 40 is controlled to a preset pressure.

And it is natural that the smoke damper unit 200 is controlled to be on/off controlled by the differential pressure and smoke control unit 300, and the opening of the smoke damper wing 220 is controlled to be 100% open and closed by the on/off control.

And as shown in FIG. 3 , the building includes a pressure sensor 400 , a fire detection sensor 500 , and a door opening/closing sensor 600 on each floor.

Each floor pressure sensor 400 is provided to measure the pressure in the annex 40, the fire detection sensor 500 is provided to detect a fire in the building, and the door open/close sensor 600 is provided in the annex 40 It is provided to detect whether the indoor space entrance door 42 is opened or closed.

The differential pressure and smoke control unit 300 receives a signal from the pressure sensor 400 on each floor when all the doors are closed in case of a fire so that the preset reference pressure of the corresponding annex 40 is maintained so that the smoke damper unit 200 is closed. In this state, the leakage damper unit 100 is controlled to provide an environment required by the system by maintaining the pressure that does not interfere with the door opening and closing force so that the door can be opened and closed smoothly when evacuating from the room (living room) to the accessory room.

And by receiving the signal of the fire detection sensor 500 and the signal of the door opening/closing sensor 600, controlling the smoke damper unit 200 through the logic circuit 310, and supplying the amount of air blown for smoke prevention to the corresponding annex 40. , to prevent smoke due to fire from flowing into the annex 40 .

Here, each annex 40 is provided with at least one indoor (living room) space entry door 42 .

In addition, the fire detection sensor 500 is provided in each indoor space, and the door opening/closing sensor 600 is provided in each entrance door 42 , respectively.

The logic circuit 310 includes a first logic circuit 312 and a second logic circuit 314 as shown in FIG. 4 .

The first logic circuit 312 transmits a signal when the signal of the fire detection sensor 500 of the corresponding indoor space and the signal of the door opening/closing sensor 600 of the corresponding entrance door 42 are detected in the same time zone. , is configured the same as the number of indoor space entrance doors 42 .

The second logic circuit 314 is configured to transmit a smoke control signal to the differential pressure and smoke control unit 300 when receiving one or more signals from among the plurality (or singular) of the first logic circuit 312 .

In other words, the first logic circuit 312 is an “AND circuit”, and the second logic circuit 314 is an “OR circuit”.

When the differential pressure and smoke control unit 300 receives the smoke control signal of the second logic circuit 314, which is when the signal of the fire detection sensor 500 and the signal of the door open/close sensor 600 are received together, the leakage damper By opening the smoke damper unit 200 in a state in which the open state of the unit 100 is maintained, the calculated required airflow amount is supplied to supply a smoke-proof air volume for blocking the inflow of smoke into the corresponding annex room.

In an embodiment, the smoke control system is driven due to a fire, and the pressure of the auxiliary room is maintained at the set pressure (40 Pa) in the initial operation, and the pressure of the auxiliary room of the non-fire floor according to the relevant laws and regulations is set to 70% or more of the set pressure. keep it

Accordingly, the differential pressure and smoke control unit 300 controls the smoke damper unit 200 to respond to a building fire. It is possible to control the smoke damper unit 200 only when the entrance door of the room where there is a fire is opened, and prevent people from inhaling the smoke from entering the escape route such as stairs through the annex.

2 is a connection duct ( 32), the differential pressure and smoke-proof damper module 10 is controlled by the differential pressure and smoke-proof damper control unit 300, and the louver 13 discharges the air supplied in accordance with the relevant laws and regulations downward by 60°. In order to keep the wind speed at the moment of inflow within the nominal standard (size of the inside of the louver) within 5 m/sec, the size is installed in the same size on all floors.

In an embodiment, the nominal size of the louver is 0.588 m ² or more. When it is 700mm in width, it is manufactured to be more than 840mm in length.

At this time, the differential pressure between the vertical duct 30 and the annex 40 is calculated as the sum of the differential pressure applied by the connecting duct 32 and the differential pressure and the smoke damper module 10 and the louver 13 .

Looking at the operating method of the differential pressure and smoke-proof damper module 10, as shown in FIG. 5, it includes an outdoor air supply step (S10), a leakage operation step (S20), and a smoke-proof operation step (S30).

In the outdoor air supply step ( S10 ), outdoor air is continuously supplied to the duct 30 of the building by the blower 20 .

And the leakage operation step (S20) receives the signal of the pressure sensor 400 of the differential pressure and smoke-proof damper module 10 to control the leakage damper unit 100, so that the outside air of the outside air supply step (S10) is supplied to the corresponding auxiliary room 40 ) and controlled at a constant pressure.

In the smoke-proof operation step (S30), when the fire detection sensor 500 signal and the door opening/closing sensor 600 signal of the differential pressure and smoke-proof damper module 10 are received, the smoke-proof damper unit 200 is controlled to control the corresponding annex 40 By supplying the smoke-proof air volume of the outside air to the furnace, the smoke from the inside of the fire-generating room is prevented from flowing into the annexed room (40).

Accordingly, in the event of a building fire, fire smoke is prevented from flowing into the annex to prevent inhalation of smoke by evacuees, and it is possible to secure a view of the evacuation route as well as secure an access route for firefighters to provide a quick response. can induce

10: differential pressure and smoke damper module 12: damper frame
13: louver 20: blower
30: vertical duct 32: connecting duct
40: annex 42: entrance door
100: leakage damper module 200: smoke damper module
300: differential pressure and smoke control unit 400: pressure sensor
500: fire detection sensor 600: door opening and closing sensor

Claims (9)

It is provided to each floor to supply outdoor air supplied with a certain amount of air to the duct inside the building by means of a blower to control the pressure in the annex of the corresponding floor,
The surplus air remaining after supplying the outdoor air required by the annex is discharged to the upper side of the building,
a leak damper unit for adjusting the pressure of the annex to a preset pressure by controlling the amount of leakage required in case of a fire to all the corresponding floors;
a smoke-proof damper unit for supplying a smoke-proof air volume to block the inflow of smoke from the room to an ancillary room together with the leakage damper unit when a fire occurs on one of the corresponding floors; and
Including; and a differential pressure and smoke control unit for controlling the leakage damper unit and the smoke damper unit;
The specifications of the leak damper part and the smoke damper part are,
It is done by the load calculated according to the type of the annex,
The leakage damper part selects an effective area at a pressure of 70% or more of the set pressure standard of the non-fire floor for design,
The smoke-proof damper part selects an effective area according to "smoke-proof air volume - air flow rate passing through the leak damper when the pressure in the annex is the minimum pressure = air volume passing through the smoke-proof damper",
The selection of the blower is based on "When the pressure of the non-fire floor ancillary room is 70% or more, the air volume supplied by the differential pressure damper × (the number of annexed rooms - the number of applications of the smoke damper) = the total leakage amount" and "the amount of the smoke protection air amount of the regulation × the number of applications of the smoke damper", " Number of door openings by door opening rate due to evacuation of the fire floor × (Leakage damper airflow when the pressure in the annex is the lowest pressure - Leakage damper airflow when the set pressure is 70% or more = Air volume additionally required for evacuation" calculate,
Differential pressure and smoke-proof damper module for buildings, characterized in that it is selected by applying a safety factor for selecting the airflow amount of the leakage damper part, the blowing volume of the smoke-proof damper part, the sum of the blower's blowing volume, and the duct leakage and blower air volume selection safety factor required by the regulations of the Fire Protection Act. According to claim 1,
The duct includes a connection duct for blowing outside air to each floor,
The leak damper part is provided in the differential pressure and smoke damper frame so as to be positioned above the smoke damper part and installed in the connection duct,
The effective area of the leakage damper is,
Differential pressure and smoke-proof damper module for buildings, characterized in that 10 to 25% of the effective area of the smoke-proof damper part, and is formed by the ratio of the leakage amount due to the load according to the shape of the annex of the building. delete 3. The method of claim 2,
The leakage damper part,
a leakage damping space portion of a damper blade installed in a longitudinal (vertical) direction elongated in the left and right directions inside the upper end of the differential pressure and smoke-proof damper frame;
a pair of leakage damper blades that are simultaneously rotated in mutual or opposite directions, the plurality of leakage damper blades being provided at regular intervals in the left and right directions in the leakage damping space; and
A leak damper driving unit controlled by the differential pressure and smoke control unit and configured to simultaneously rotate the leakage damper blades forming each pair in mutual or opposite directions to adjust the amount of air blown in the leakage damping space;
The smoke damper part,
a smoke-proof damping space part formed inside the lower end of the differential pressure and smoke-proof damper frame, having the same width as the left and right widths of the maximum size of the leakage damping space part, and elongated in the vertical direction;
a pair of smoke-proof damper blades provided in a plurality of vertical directions in the smoke-proof damping space to simultaneously rotate in mutually or mutually opposite directions;
Controlled by the differential pressure and smoke control unit, the smoke damper driving unit for supplying the smoke blowing amount of the smoke-proof damping space by simultaneously rotating the smoke-proof damper blades forming each pair in mutual or opposite directions; Differential pressure and smoke for buildings comprising a damper module. delete According to claim 1,
a pressure sensor for measuring the pressure in the annex;
a fire sensor for detecting a fire in a building; and
A door opening/closing sensor for detecting whether an indoor access door provided in the annex room is opened or closed is further provided,
The differential pressure and smoke control unit,
Controls the leakage damper in a state in which the smoke damper is closed so that the preset pressure of the attached chamber is maintained by receiving the signal from the pressure sensor,
Controls the smoke damper unit through a logic circuit by receiving the signal of the fire detection sensor and the signal of the door opening/closing sensor,
The annex is provided with at least one indoor access door,
The fire detection sensor is provided in each room,
The door opening/closing sensor is provided in each entrance door,
The logic circuit is
at least one first logic circuit for transmitting a signal when the signal of the fire detection sensor of the corresponding room and the signal of the door opening/closing sensor of the corresponding door are detected at the same time; and
a second logic circuit for transmitting a smoke control signal to the differential pressure and smoke control unit when receiving one or more signals from among the first logic circuits; and
The differential pressure and smoke control unit,
When the smoke control signal of the second logic circuit is received, the smoke damper is opened while the open state of the leakage damper is maintained to supply a smoke-proof air volume to the annex to prevent fire smoke from flowing into the annex. Differential pressure and smoke damper module. delete delete an outdoor air supply step in which outdoor air is continuously supplied to a duct of a building by a blower;
According to any one of claims 1 to 2, 4, and 6, by receiving the pressure sensor signal of the differential pressure and smoke-proof damper module and controlling the leakage damper, the outdoor air of the outdoor air supply step is blown to the corresponding accessory room. Leakage operation step controlled by a constant pressure; and
When the fire detection sensor signal of the differential pressure and smoke damper module and the door opening sensor signal are received, the smoke damper unit is controlled to supply outdoor air to the corresponding annex to prevent the smoke from entering the annexed room from entering the annexed room. Differential pressure and smoke-proof damper module operation method for buildings, including.

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