KR101610281B1 - Dual-Mode Controller for smoke dampers and control method of air supply - Google Patents

Abstract

The present invention relates to a dual mode air supply damper and a control method for smoke control, and more particularly, to a dual mode air supply damper and a control method for controlling the same. A receiver electrically connected to receive the signal from the heat / smoke detector; A dual damper controller electrically connected to the receiver, receiving a signal sensed by the heat / smoke sensor through a receiver and controlling the air to be supplied to the ventilation space through a duct; A blower electrically connected to the double damper controller for supplying air to the ventilation area in response to a control signal from the double damper controller; And a damper that is electrically connected to the double damper controller and adjusts the amount of air supplied according to the fire mode or the evacuation mode by the air supplied from the blower by the signal of the double damper controller. The space is provided with a dual mode elasticity for smoke control that can control the amount of air supplied to the smelting zone and prevents the smoke movement from entering the non-smoking zone from the smoking zone, It is possible to secure the safety of the evacuation, to minimize damage to people and property, to improve the disaster prevention performance, to maximize the fire fighting compartment capacity, to maximize the fire fighting / digestion activities of the firefighters, And the like.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a dual mode air damper,

The present invention relates to a dual mode air supply damper and a control method for smoke control, and more particularly, to a dual mode air supply damper and a control method for controlling smoke in a fire extinguishing area (special evacuation staircase, evacuation staircase, It is necessary to maintain a pressure difference so that the fire is transferred from the fire room to another space and the fire area is enlarged or the smoke (induction gas, etc.) generated from the fire is prevented from entering or spreading to other areas, The present invention relates to a dual mode air damper and a control method for smoke control for judging a fire or evacuation mode according to a change in differential pressure in a ventilation zone and adjusting the air volume supplied to the ventilation zone in accordance with these modes will be.

The fundamental reason that smoke from a building's fire acts as a very dangerous factor to safety of life is that the smoke is diluted by the air mixed with the combustion process and is less dangerous than the gas immediately after the flame or combustion, The most significant cause of human life risk is the rapid rate of smoke spreading in buildings compared to flames.

Especially, in the case of high-rise buildings, an increase of the number of unspecified large number of people increases an artificial risk factor such as fire and terrorism, and the increase of evacuation time due to the expansion of vertical space, There is a considerable increase in casualties and injuries.

In order to effectively protect the fire and heat transfer from buildings and the spread of smoke and the spread of smoke, fire prevention measures (control measures and technological measures) and building fire safety regulations, The staircase of the special escape stairway that is divided into the above-mentioned buildings, the emergency staircase of the emergency staircase, or the auxiliary stateroom which includes the platform of the emergency staircase.

The Fire Service Act stipulates that the pressure of the ventilation area should be kept higher than that of the fire room by supplying outdoor fresh air to the ventilation area when the doors of the ventilation area are closed during the fire. Also, it is necessary to maintain a constant pressure difference in the ventilation area with a constant fireproofing to prevent the smoke from penetrating into other spaces when the entrance door of the ventilation area is temporarily opened due to the evacuation of the occupant. It does not allow smoke to penetrate or spread.

As shown in FIG. 1, the conventional air-conditioner damper 100 for controlling the air volume in the ventilation space supplies a uniform air volume even in the closed state of the doors and the open / Performance is not satisfied. That is, since the permissible differential pressure is set only in a state in which the doors of the smoke-inducing section 200 are closed, the aperture ratio of the air-volume control damper 100 is fixed.

Accordingly, depending on the position of the blower 300, the permissible pressure difference in the ventilation zone is too large (100 Pa or more) or extremely low (7 to 10 Pa), and the air volume of the blower 300 % It is used only about 60 ~ 70% because it is not used. Therefore, if a smoke-free wind speed is formed in the ventilation area of the fire layer in order to form a differential pressure due to the temporary opening of the smoke- In most cases, no differential pressure is formed in the ventilation zone of the layer.

If the performance of the ventilation facility is significantly reduced, the smoke of the fire layer penetrates into and spreads to the non-fire layer, thereby increasing the life and property damage.

As described above, it is urgent to take measures against smoke in open fire and to improve the performance of existing rehabilitation facilities in order to safeguard human life and technological measures in case of fire in a building which is becoming high-tech, high-rise and diversified, In order to improve the performance of the existing reheating facility, problems of the airflow control damper and technical measures are urgently needed.

The composite damper disclosed in Korean Patent Publication No. 1102928 has a plurality of opening / closing blades inside a square frame, and has a supporting shaft at both ends of the opening / closing blades, Wherein each of the support shafts is rotatably coupled to a square frame so as to open and close the opening and closing blades,

Wherein the support shaft of the automatic operation opening and closing blade is connected to be simultaneously operated by the first link mechanism and the support shaft of the manual operation opening and closing blade is connected to the second, 3 link mechanism,

Wherein the first and second link mechanisms are connected to each other by an automatic opening / closing device, and the second and third link mechanisms are connected by respective manual switches, and the automatic operation opening and closing wings, which are a part of the plurality of opening / closing wings on the inside of the rectangular frame, The manual operating opening and closing wings, which are part of a plurality of opening and closing wings, are configured to be manually opened and closed.

However, in the prior art, the manually operated opening and closing blades installed at the front of the blower are configured such that the opening and closing degree of the manually operated opening and closing blades is varied according to the wind direction of the blower, but the opening and closing degree thereof can not be appropriately adjusted according to the pressure of the blower. That is, when the air blowing is strong, the air is completely opened and closed. However, if the air blowing force of the blowing fan is not strong, the manually operated opening and closing blades can not be opened and air can not be supplied to the ventilation area.

In addition, when the door is opened in the ventilation area and the differential pressure in the ventilation area is lost, the manual operation opening / closing device can not provide a proper amount of air to the ventilation area where the pressure difference is lost. A differential pressure in the ventilation zone can not be formed.

Korean Registered Patent No. 1102928 (Notice of Jan. 10, 2012)

As described above, the present invention has been made in order to solve the existing problems in view of the urgency of measures against smoke and heat of fire in a high-rise building in case of fire, and in particular, NFSC501A), the dual mode air supply damper is applied to the reheating facility so as to prevent the intrusion and spread of the smoke to other spaces and to secure the safety of the evacuation and to minimize damage to property and human life. , The damper is opened by about 50% to 60% to maintain the differential pressure in the ventilation area and the damper is opened 100% when evacuation (evacuation mode, door opening) It is to maximize the performance of ventilation equipment (allowable differential pressure, maintenance of airflow wind speed, etc.) by supplying stable air volume so as to maintain differential pressure in the zone.

According to an aspect of the present invention, there is provided a dual mode air damper for smoke control, comprising: a heat / smoke detector for detecting a fire or smoke; A receiver electrically connected to receive the signal from the heat / smoke detector; A dual damper controller electrically connected to the receiver, receiving a signal sensed by the heat / smoke sensor through a receiver and controlling the air to be supplied to the ventilation space through a duct; A blower electrically connected to the double damper controller for supplying air to the ventilation area in response to a control signal from the double damper controller; And a damper that is electrically connected to the double damper controller and adjusts the amount of air supplied in accordance with the fire mode or the evacuation mode by the air supplied from the blower by the signal of the double damper controller.

The double damper controller of the present invention recognizes the double damper controller as a fire mode when the differential pressure is detected to be 40 Pa to 60 Pa in the state where the differential pressure in the ventilation zone is maintained and recognizes the damper wing as the evacuation mode when the differential pressure falls below 40 Pa. A dual mode air damper for smoke control is provided which adjusts the air flow rate by adjusting the angle.

The damper of the present invention is installed in the building and includes an air supply damper for adjusting the amount of air supplied through the duct to supply the air supplied by driving the blower to the smoke inducing section. And a differential pressure damper which is connected to the duct and installed in the ventilation zone and controls the supply of air to the differential pressure state of the ventilation zone and the ventilation configuration.

The differential pressure of the air supplied to the smoke-inducing section through the damper of the present invention is recognized as a fire mode when the differential pressure is detected to be 40 Pa to 60 Pa. When the differential pressure falls to 40 Pa or less, the differential pressure is recognized as the evacuation mode, Wherein air is supplied at a smoke wind speed of 0.5 to 0.7 m / s.

In the dual mode air supply damper control method for smoke control according to the present invention, a dual mode air supply damper control method for smoke control includes a step S10 of detecting a fire or a smoke by a heat / and; A step S20 of applying a signal sensed by the heat / smoke detector to a disaster control center receiver and driving a blower and a differential pressure damper by applying a signal to a receiver by a double damper controller; A step S30 of supplying air to the ventilation zone of each floor of the building so as to form a differential pressure through the air supply fan; Supplying air to the ventilation zone so as to maintain the differential pressure within a predetermined range; Measuring whether the pressure difference is maintained within a predetermined range by the air supplied to the ventilation zone through a pressure sensor, and determining whether the mode is in a fire mode by the measured value in the dual damper controller; If it is determined that the differential pressure is within a predetermined range in step S50, recognizing the mode as a fire mode and continuing the mode; If it is determined in step S50 that the differential pressure has fallen below a certain differential pressure by the air supplied to the smoke inducing zone, and if the differential pressure falls below a certain differential pressure, the dual damper controller recognizes the differential mode as an evacuation mode; If it is determined in step S60 that the evacuation mode is sensed, adjusting the damper and the supply fan to maintain a constant differential pressure in the ventilation zone where the evacuation mode is sensed; And maintaining the supply air supply state so as to prevent the spread of heat or smoke by supplying air through the air supply damper, the blower, and the differential pressure damper to the smoke-inducing section, and performing the step S90. .

The present invention provides a dual mode air supply damper control method for smoke control, characterized in that the double damper controller is recognized as a fire mode when the differential pressure generated by the air in the step S50 of the present invention is between 40 Pa and 60 Pa.

The present invention provides a dual mode air supply damper control method for smoke control, wherein the double damper controller recognizes an evacuation mode when the differential pressure generated by air in step S70 of the present invention falls below 40 Pa.

The present invention provides a dual mode air supply damper control method for smoke control, characterized in that, in the evacuation mode of the present invention, a pressure difference of about 28 Pa is maintained in the differential pressure of the smoke induction zone.

The present invention provides a method of controlling a dual mode air supply damper for smoke control, characterized in that air is supplied at 0.5 to 0.7 m / s in the wind speed of the smoke inducing zone in the evacuation mode.

The present invention provides a double mode elasticity control for smoke control which can control the amount of air supplied to the smelting zone by preventing the smoke movement that intrudes and diffuses from the smoke-free zone into the smoke-free zone, It is possible to prevent the backflow and the intrusion and spread of the gas to other spaces, thereby securing the stability of the evacuation, minimizing the damage to human life and property, improving the disaster prevention performance, maximizing the fire fighting compartment capacity, Maximization and technical flexibility of firefighting equipment system.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a conventional smokestack system diagram and a configuration of an airflow control damper. FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a dual mode air supply damper for smoke control.
3 is a view showing a configuration of a dual mode air supply damper according to the present invention.
4 is a view showing an operating state of a dual-mode tab damper according to the present invention;
5 is a block diagram illustrating a dual mode air supply damper configuration for smoke control according to the present invention.
6 is a flowchart showing a control state according to a dual mode air supply damper control method for smoke control in FIG.

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

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for similar elements in describing each drawing. The terms first, second, etc. may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

For example, the term "and / or" includes any combination of a plurality of related listed items or any of a plurality of related listed items.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed in an ideal or overly formal sense unless expressly defined in the present application Should not.

The specific terminology used in the following description is provided to aid understanding of the present invention, and the use of such specific terminology may be changed into other forms without departing from the technical idea of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

Hereinafter, a dual mode air damper and a control method for smoke control according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a view showing the construction of a reconditioning system using a dual mode air damper for smoke control according to the present invention, FIG. 3 is a view showing the construction of a dual mode air damper according to the present invention, FIG. 2 is a view showing an operating state of the dual mode anti-corrosion damper.

Referring to FIGS. 2 to 4, the dual mode air damper for smoke control according to the present invention includes a heat / smoke detector 500 for detecting a fire or smoke or a heat, a smoke / smoke detector 500, A receiver 800 electrically connected to the receiver 800 to receive a signal sensed by the heat / smoke detector 500 and a receiver 800 connected to the receiver 800 through a duct 700 to receive a signal sensed by the heat / A second damper controller 410-5 that is electrically connected to the double damper controller 410-5 and receives a control signal from the dual damper controller 410-5 to control the air flow to the smoke exhaustion zone 200 And the air supplied from the blower by the signal of the double damper controller 410-5 is supplied to the air blower 300 in the fire mode A ) Or evacuation mode (B) And a damper 400 for adjusting the supply amount.

The damper 400 is installed in the building and has a dual mode air damper 410 for controlling the amount of air supplied through the duct 700 so as to supply the air supplied by driving the blower 300 to the smoke- And a differential pressure damper 420 which is connected to the duct 700 and installed in the ventilation area and controls the differential pressure state of the ventilation zone 200 and the air supply in the ventilation configuration.

The differential pressure damper 420 includes a pressure sensor for measuring the pressure of the air supplied to the smelting zone.

When the differential pressure of the air supplied to the smoke-inducing section through the damper 400 is detected to be 40 Pa to 60 Pa, it is recognized as a fire mode. If the differential pressure falls below 40 Pa, the differential pressure is recognized as the evacuation mode. The air flow rate is 0.5 ~ 0.7m / s.

The double damper controller 410-5 recognizes the differential mode as a fire mode when the differential pressure is detected to be 40 Pa to 60 Pa in a state where the differential pressure in the ventilation zone is maintained and recognizes the differential mode as the evacuation mode if the differential pressure falls below 40 Pa. Adjust the airflow by adjusting the angle of the wings.

The dual damper controller 410-5 includes a power supply unit that supplies constant power to the power supply unit 400 and supplies the constant power to the power supply unit 400. The power supply unit 300 includes a dual mode damper 410 and a differential pressure damper 410, A dual damper 410, a pressure damper 420, and a pressure sensor via a program stored in the memory to drive and open / close the signal, And the like.

Further, the dual damper controller 410-5 may further include a display, which allows the control status of the dual damper controller 410-5 to be confirmed by the administrator.

The operation and effect of the dual mode air damper for smoke control according to the present invention will be described.

As shown in FIG. 2, the dual-mode air supply damper 410 for smoke control satisfies the requirements of the allowable differential pressure and the wind speed of airflow as disclosed in the fire fighting method, and the chimney effect And the pressure loss head, etc., and the double-mode air supply damper 410 is controlled by the heat / smoke detector in case of a fire, from the differential pressure (DELTA P) Mode double damper controller 410-5 so as to be remotely controlled by the dual damper controller 410-5.

2, the dual mode air supply damper 410 is installed integrally with the air flow in the front portion of the blower 300 as shown in FIG. 2. As shown in FIG. 3, the dual mode air supply damper 410 includes a door Mode differential damper controller 410-5 is recognized in accordance with the opening and closing of the double damper controller 410-5, that is, when the differential pressure ΔP is in the range of 40Pa to 110N, it is recognized as the fire mode A and if the differential pressure is 40Pa or less, Mode (B).

When the angle of the blade 410-1 is adjusted and the area of the duct 700 is adjusted to adjust the angle of the blades 410 of the dual mode air supply damper 410, ) To control the air flow rate.

In the case of the fire mode (A), the dual-mode air supply damper 410 is provided in a state in which the doors of the ventilation section 200 are closed but the pressure of the ventilation zone is set to 40 Pa to 110 N The air volume of the blower 300 is adjusted so as to maintain a high differential pressure.

In the evacuation mode B, the dual mode air supply damper 410 temporarily opens the door 600 of the ventilation area 200 while escorting the occupant of the building to avoid a fire. Due to the opening of the door 600, In the fire mode (A), the pressure (40Pa ~ 110N) held in the ventilation area rapidly drops to 0Pa.

Since the smoke is likely to enter and diffuse into the smoke-inducing section 200 and the non-fire layer, the smoke-evacuating section 200 of the evacuation floor is provided with a smoking wind speed of 0.5 to 0.7 m / s And the air flow rate of the blower 300 is controlled so that the differential pressure of 28 Pa is maintained in the ventilation zone of the door non-opening layer.

Reference numerals 410-3, 410-3a, and 410-3b denote gear portions. Links 410-2, 410-2a, and 410-2b and actuators 410-4 and 410-4a and 410-4b To adjust the angles of the blades 410-1, 410-1a, and 410-1b of the dual mode air supply damper 410 and the differential pressure damper 420. [

FIG. 5 is a block diagram showing the construction of a dual mode air supply damper for smoke control according to the present invention, and FIG. 6 is a flowchart showing a control state according to a dual mode air supply damper control method for smoke control in FIG.

Referring to FIGS. 5 and 6, a dual mode air supply damper control method for smoke control according to the present invention includes a step S10 of detecting a fire or smoke by a heat / smoke detector 500, .

The signal sensed by the heat / smoke detector 500 is applied to the anti-distress center receiver 800 and a signal applied to the receiver 800 is applied to the dual damper controller 410-5, The control unit 300 and the differential pressure damper 420 are driven.

(S30) in which air is supplied to the smoke generating zone 200 of each floor of the building so as to form a differential pressure through the blower 300, and air is supplied to the smoke inducing zone 200 to maintain the differential pressure within a predetermined range .

Whether or not the differential pressure is maintained in a certain range by the air supplied to the ventilation zone 200 is measured through a pressure sensor and the double damper controller 410-5 determines whether the mode is in the fire mode based on the measured value Step S50 is performed.

If the range in which the differential pressure is generated by the air in the step S50 is in the range of 40 Pa to 60 Pa, the double damper controller 410-5 recognizes the fire mode (A).

If it is determined in step S50 that the differential pressure is between 40 Pa and 60 Pa, step S60 is performed to recognize the mode as a fire mode and continue the mode.

In step S50, the double damper controller 410-5 determines whether the differential pressure has fallen below a predetermined differential pressure by the air supplied to the smoke-inducing section. If the differential pressure is equal to or lower than a predetermined differential pressure, .

When the differential pressure generated by the air drops to 40 Pa or less in step S70, the double damper controller 410-5 recognizes the mode as the evacuation mode. In the evacuation mode, the air-conditioning wind speed in the ventilation zone is 0.5 to 0.7 m / .

If it is determined in step S60 that the mode is the evacuation mode, step S80 is performed in which the damper and the air supply fan are adjusted to maintain a predetermined pressure difference in the ventilation area where the evacuation mode is sensed.

The air supply damper and the air supply fan supply air to the smoke-inducing section, and the step S90 of performing the step S60 is performed.

The dual mode air damper control method for smoke control according to the present invention for controlling the differential pressure of the smoke-inducing section through a process such as a commercial operation will be described in more detail.

When a fire occurs in an arbitrary room (hereinafter, referred to as a fire room) of the building, heat or smoke is detected by the heat / smoke detector 600 installed in the fire room and the signal of the heat / The receiver informs you that a fire has occurred.

The receiver of the disaster prevention center gives a signal to the dual damper controller 410-5 of the dual mode air supply damper 400 from which the blower 300 and the differential pressure damper installed in the ventilation zone 200 of each floor of the building 500 to the dual damper controller 410-5.

The blower 300 receiving the operation signal from the receiver 800 operates to supply fresh air to the ventilation zone 200 of each floor of the building and the ventilation zone 200 is connected to the ventilation zone 200 and the pressure A differential pressure (positive pressure) is formed.

At this time, the pressure sensor integrally attached to the differential pressure damper 500 of the building floor smoke exhaustion zone 200 recognizes the differential pressure and is sent to the double damper controller 410-5 of the dual mode supply damper 410, The central processing unit of the damper controller 410-5 recognizes the fire mode when the differential pressure of the building floor smoke exhausting zone 200 is within the range of 1) 40 to 60 Pa, and the evacuation mode (B) when the pressure falls below 40 Pa.

When a fire occurs in an arbitrary floor of the building and a signal of the heat / smoke detector 600 is transmitted to the dual damper controller 410-5 of the dual mode air supply damper 410, The central processing unit recognizes the primary fire mode. An actuator 410-4a attached to the dual mode air supply damper 410 is actuated and the actuator 410-4a actuates the link 410-2a so that the wing 410-1a of the dual mode air supply damper 410 is operated, Lt; / RTI >

The air of the blower 300 is supplied to the ventilation section 200 along the open flow path of the dual mode air supply damper 410. At this time, only about 50 to 60% of the air flow rate of the blower 300 is used, and the differential pressure of the ventilation zone 200 is maintained within the range of 40 to 60 Pa.

If the differential pressure in the smoke-free zone 200 of any building is detected to be 40 Pa or less in the fire mode and is transmitted to the dual damper controller 410-5 of the dual mode air damper, The central processing unit is recognized as an evacuation mode B in which the entrance door 700 of the ventilation area is opened to allow the occupant to evacuate the evacuation path and the double damper controller 410-5 is connected to the actuator of the dual mode air supply damper 410 And the actuator operates the link 410-2b to adjust the angle of the wing 410-1b of the dual mode air supply damper so that the dual mode air supply damper 410-5 is rotated by the wings 410-1, So that the air volume of the blower 300 of a larger quantity is supplied to the ventilation zone 200 of each building floor by the amount of air leaked through the door 700 opened.

(0.5 ~ 0.7m / s) is supplied to the ventilation area of the evacuation floor where the entrance door (700) of the ventilation area is opened so as to prevent the smoke from entering, and the differential pressure of at least 28Pa So that smoke can not enter.

Also, if the occupant in the ventilation area after the evacuation is closed and the differential pressure in the ventilation zone 200 is maintained in the range of 40 to 60 Ps, the double damper controller 410-5 can control the actuator 400 -1b) is closed to return to the state of the fire mode.

Therefore, it is possible to keep smoke leakage in the fire room when the fire occurs and to prevent the smoke in the fire room from flowing into the evacuation stairway by maintaining the pressure difference in the ventilation zone (200) of each floor of the building uniformly. It is possible to minimize the damage of the property as well as the safety and to facilitate the firefighting / rescue activities.

As described above, the present invention provides a double mode elasticity for smoke control that can control the amount of air supplied to the smelting zone and prevent the smoke movement that intrudes and diffuses from the smoke-free zone into the non- The fire and toxic gas can be prevented from backflowing and spreading into other spaces to prevent and control the evacuation stability, minimize the damage to people and property, improve the disaster prevention performance, maximize fire fighting area, Of the fire and rescue activities and technical flexibility of the fire fighting and disaster prevention system.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

100: air volume damper
200: Smoke area
300: blower
400: damper
410: Dual Mode Supply Damper
410-1, 410-1a, 410-1b:
410-2, 410-2a, 410-2b: Link
410-3, 410-3a, 410-3b:
410-4, 410-4a, 410-4b: actuators
410-5: Double Damper Controller
420: differential pressure damper
500: Heat / smoke detector
600: Door
700: Duct
800: receiver

Claims (9)

A dual mode air supply damper for smoke control, comprising:
Heat / smoke detectors to detect heat or smoke if a fire has occurred;
A receiver electrically connected to receive the signal from the heat / smoke detector;
A differential pressure of 40 to 60 Pa is detected in a state where the differential pressure in the ventilation zone is maintained so that the signal sensed by the heat / smoke sensor is received through the receiver and air can be supplied to the ventilation zone through the duct A double damper controller recognizing the mode as a fire mode and recognizing the mode as an evacuation mode when the differential pressure falls below 40 Pa;
A blower electrically connected to the double damper controller for supplying air to the ventilation area in response to a control signal from the double damper controller;
When the differential pressure corresponding to the air supplied from the blower is detected as 40Pa to 60Pa by the signal of the double damper controller, it is recognized as a fire mode or if the differential pressure falls below 40Pa, it is recognized as an evacuation mode, Depending on the mode or evacuation mode, the differential pressure in the ventilation zone where the air supply adjustment and evacuation modes are detected is 28 Pa, so that the air can be supplied to the ventilation area to maintain the differential pressure, and the amount of air supplied through the duct is controlled A damper including a supply damper, a differential pressure damper disposed in a ventilation zone connected to the duct so as to adjust the supply of air to the pressure difference state of the ventilation zone and the ventilation configuration;
And a second damper for controlling the second damper. delete delete delete A dual mode air supply damper control method for smoke control,
A dual mode supply damper control method for smoke control comprises the steps of: sensing a fire or smoke by a heat / smoke detector whether a fire has occurred in any room of a building;
A step S20 of applying a signal sensed by the heat / smoke detector to a disaster control center receiver and driving a blower and a differential pressure damper by applying a signal to a receiver by a double damper controller;
A step S30 of supplying air to the ventilation zone of each floor of the building so as to form a differential pressure through the air supply fan;
Supplying air to the ventilation zone so as to maintain the differential pressure within a predetermined range;
Measuring whether the pressure difference is maintained within a predetermined range by the air supplied to the ventilation zone through a pressure sensor, and determining whether the mode is in a fire mode by the measured value in the dual damper controller;
If it is determined in step S50 that the differential pressure is within a range of 40 Pa to 60 Pa, S60 recognizes the mode as a fire mode and depresses the smoke-inducing zone in the differential pressure damper by the air supplied through the air-
If it is determined in step S50 that the differential pressure has dropped below a predetermined differential pressure by the air supplied to the smoke inducing zone and if the differential pressure falls below 40 Pa, the double damper controller recognizes the differential mode as an evacuation mode;
If it is determined in step S60 that the evacuation mode is detected, the damper configured to include the supply damper and the differential pressure damper and the supply fan are controlled so as to maintain the differential pressure of the pressure in the ventilation area sensed in the evacuation mode at 28 Pa.
(S90) of maintaining the air supply maintenance state so that air is supplied to the smoke-inducing section through the air supply damper, the air blower, and the differential pressure damper so as to prevent the spread of heat or smoke due to the differential pressure;
And a control unit for controlling the operation of the dual mode air supply damper. delete delete delete delete

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