KR20180114607A - Inergen gas exhaust system - Google Patents

Abstract

An Inergen residual gas discharge system is disclosed. According to an embodiment of the present invention, the Inergen residual gas discharge system is installed in an Inergen gas discharge room in which Inergen gas is discharged in case of fire to extinguish the fire, and comprises: an air intake line installed between an outdoor air inlet and main ventilation equipment in the room; an air intake bypass line installed in parallel with the air intake line; and an Inergen discharge line of which one end is connected to an indoor air outlet, and the other end is arranged in the room. The system is normally connected to only the air intake line, and in case of fire, the system is connected to the air intake bypass line and the Inergen discharge line to discharge Inergen residual gas in the room to the outside of the room.

Description

[0001] Ingenen gas exhaust system [0002]

The present invention relates to an inner residual gas exhaust system.

Generally, when a fire occurs in various plant facilities or buildings, a fire extinguishing gas system is provided to suppress fire by using fire extinguishing gas such as inner gas.

The Inergen System is designed to dilute the oxygen concentration by releasing the inert gas in the protection zone with human safety in mind, and controls the atmosphere to perform the digestion function.

Conventionally, there is no system for automatically discharging the inner gas residual gas in the room after the inner gas is injected, and the room is discharged through a door inside the room using a general moving fan.

Korean Patent Laid-Open No. 10-2016-0057799 (published May 26, 2014) - Innergen or carbon dioxide extinguishing system and fire suppression method using the same

The present invention provides an inner gas residual gas discharge system that automatically disposes of inner gas residual gas by disposing an additional system where an inner gas exhaust system and a pressure relief system for an inner gas exhaust chamber are configured .

Other objects of the present invention will become readily apparent from the following description.

According to an aspect of the present invention, there is provided an inner gas residual gas discharge system installed in an inner gas discharge chamber in which an inner gas is discharged and a fire suppression is performed when a fire occurs, line; An intake bypass line installed in parallel with the intake line; Wherein the intake bypass line and the inner exhaust line are connected to each other so that the intake line and the inner exhaust line are connected to each other, Is discharged to the outside of the room.

A first fire damper of a NO (Norm Open) type installed in the intake line; A second fire damper of a NC (Normal Close) type installed in the intake bypass line; And an NC type third fire damper installed in the inner discharge line.

The first and second fire dampers and the third fire damper are closed, and when the inner gas is discharged by the inner gas discharge device in a fire and the fire is suppressed, Upon receipt of the first fire retardant damper signal from the fire detection device, the first fire retardant damper may be closed and the second fire retardant damper and the third fire retardant damper may be opened.

According to another aspect of the present invention, there is provided an inner gas residual gas discharge system installed in an inner gas discharge chamber in which an inner gas is discharged and a fire suppression is performed when a fire occurs, and is installed between an outer air inlet and a main ventilation facility in a room Intake line; A discharge line, one end of which is connected to the vent outlet and the other end is disposed in the room; And a discharge bypass line provided in parallel to the discharge line, wherein the suction line and the discharge line are connected to each other at a normal time, and only the discharge bypass line is connected at the time of a fire to return the inner residual gas in the room to the outside of the room An inner gas residual gas discharge system is provided.

A NO-type first fire damper installed in the intake line; A NO-type fourth fire retardant damper installed in the discharge line; And an NC type fifth damper installed in the discharge bypass line.

The first and second fire dampers are opened, the fifth fire dampers are closed, and when the inner gas is discharged from the inner gas discharge device during the fire to suppress the fire, Upon receipt of the first fire damping signal indicative of fire extinguishing from the fire detection device, the first fire damping damper and the fourth fire damping damper may be closed and the fifth fire damping damper may be opened.

The sub-ventilation equipment is installed in the discharge line, and the sub-ventilation equipment is operated by the first fire-fighting damper signal to form a negative pressure inside the room.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to the embodiment of the present invention, there is an effect that an additional system can be disposed where the internal gas exhaust system for use and the pressure elimination system for the inner gas discharge chamber are configured to automatically discharge the inner gas residual gas .

FIG. 1 is a view showing a normal air flow of an inner residual gas discharge system according to an embodiment of the present invention,
FIG. 2 is a view showing an air flow in case of an internal residual gas discharge system according to an embodiment of the present invention,
FIG. 3 is a diagram illustrating the normal air flow of an inner residual gas discharge system according to another embodiment of the present invention,
FIG. 4 is a view showing an air flow in a fire of an inner residual gas discharge system according to another embodiment of the present invention. 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 is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof. And the terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a view showing a normal air flow of an inner residual gas discharge system according to an embodiment of the present invention, and FIG. 2 is a view showing an air flow during a fire of an inner residual gas discharge system according to an embodiment of the present invention FIG.

1 and 2 show an internal residual gas discharge system 10a, a fire detection device 60, an inner gas discharge device 70, an inner gas discharge room 1, a main ventilation facility 14, The first through-hole 2a, the first fire damper 15a, the return line 30, the intake bypass line 40, the second through-hole 2b, the second through- An inner discharge line 50, a third through hole 2c, a third fire damper 15c, an inner discharge port 16, and a non-return damper 5 are shown.

The inner gas residual gas discharge system 10a according to an embodiment of the present invention adds an intake bypass line to an intake line of a ventilation system installed in a room environment in which an inner gas is discharged for suppressing a fire in case of fire, Xen Residual gas emission is automatically enabled.

The inner gas residual gas discharge system 10a according to the present embodiment is installed in the inner gas discharge chamber 1 configured to release the inner gas and to extinguish the fire and has an intake line 20 for ventilation, (30), an intake bypass line (40) for inner gas residual gas discharge, and an inner discharge line (50).

Outside of the inner gas discharge room 1, an outside air inlet 12 for introducing outside air into the room and an inside air outlet 16 for discharging the inside air inside the room are provided.

In addition, a main ventilation facility 14 for ventilation of the room is installed in the inner gas discharge room 1. The main ventilation equipment 14 may be a blower, an aerator, a duct, an air supply duct, an air filter, and the like. The detailed configuration and functions of the main ventilation equipment 14 are obvious to those skilled in the art. And a detailed description thereof will be omitted for convenience of explanation.

An intake line 20 is provided between the outside air inlet 12 and the main ventilation equipment 14 so that when the main ventilation equipment 14 is operated, outside air is introduced through the outside air inlet 12, And may be supplied into the inner gas discharge room 1.

An intake bypass line (40) is also provided between the outside air inlet (12) and the main ventilation facility (14) together with an intake line (20). The intake bypass line 40 may be installed in parallel with respect to the intake line 20. The intake line 20 and the intake bypass line 40 meet at two points and a point near the outside air inlet 12 is called a first intersection point and a point near the main ventilation equipment 14 is called a second intersection point .

One end of the return line 30 may be connected to the middle of the intake line 20. The other end of the return line 30 is in the middle of the interior of the inner gas discharge room 1 so that the inside of the room can be circulated along the return line 30. [ The return point at which the return line 30 is connected may be located at the front end of the second intersection point.

A first through hole 2a and a second through hole 2b through which the intake line 20 and the intake bypass line 40 are passed may be formed in the wall of the inner gas discharge room 1. [ The intake line 20 is installed through the first through hole 2a and the intake bypass line 40 is installed through the second through hole 2b.

A first fire damper 15a is installed in the room-side intake line 20 of the first through-hole 2a. The first fire-fighting damper 15a is a normally open (NO) type that is opened or closed in response to a signal output from the fire sensing device 60, and is normally opened when the fire is closed during a fire.

A second fire damper 15b is installed in the room-side intake bypass line 40 of the second through-hole 2b. The second fire-fighting damper 15b is an NC (Normally Closed) type that is opened or closed in response to a signal output from the fire sensing device 60, and is normally closed when the fire is released and is open when a fire occurs.

In the intake line 20, an outside air inlet 12, a first intersection point, a first through hole 2a, a first fire damper 15a, a return point, a second intersection point, . A first intersection point, a second through hole (2b), a second fire damper (15b), and a second intersection point are placed in order in the inspiratory bypass line (40).

The inner gas discharge chamber 1 may be provided with an inner discharge line 50.

One end of the inner nozzle discharge line 50 is connected to the exhaust outlet 16 and the other end is disposed inside the room.

A third through hole (2c) through which the inner discharge line (50) passes may be provided in a wall of the inner gas discharge room (1). The inner nozzle discharge line (50) is installed through the third through hole (2c).

A third fire damper 15c is provided in the room-side innermost discharge line 50 of the third through-hole 2c. The third fire damper 15c is an NC type which is opened or closed in response to a signal output from the fire sensing device 60, and is normally closed when the fire is detected and is open when the fire is extinguished.

The normal air flow is shown in Fig.

Only the first type fire rated damper 15a of the NO type is opened and the second type fire rated damper 15b and the third type fire rated damper 15c of the NC type are closed.

The outdoor air introduced through the outdoor air inlet 12 is opened to the first ventilation damper 15a and is moved to the main ventilation facility 14 through the intake line 20 (S110) and is supplied into the room. The air in the room is circulated through the return line 30 (S120).

When a fire occurs, the air flow is changed as shown in Fig.

The fire detection device 60 detects whether a fire in the room has occurred (S130). The fire detection device 60 may include at least one of a heat detection sensor, a flame detection sensor, a smoke detection sensor, and a gas detection sensor.

When a fire is detected by the fire detection device 60, a fire detection signal is transmitted to the inner gas discharge device 70 to operate the inner gas discharge device 70, so that the inner gas is discharged into the room (S140). Since the inner gas is released, the fire in the room is suppressed, but the inner gas remains.

After the fire is extinguished, the fire detection device 60 transmits signals for controlling the fire damper to the first to third fire dampers 15a to 15c. The first and second fire dampers 15b and 15c are closed when the first fire damping device 15a receives the first fire damping signal from the fire sensing device 60 and the second and third fire dampers 15b and 15c are closed from the fire sensing device 60, Upon receiving the signal, it is released (S150).

In this case, the first fire-fighting damper 15a is closed, and the intake line 20, which was responsible for the air flow normally, is disconnected. Then, the second fire dampers 15b are opened, the intake bypass line 40 is connected, and the third fire dampers 15c are opened to connect the inner discharge line 50. [

When the main ventilation equipment 14 is operated for discharging the inner gas residual gas, the outside air introduced through the outside air inlet 12 is transferred to the main ventilation equipment 14 through the intake bypass line 40 and supplied into the room (S160). The inside air containing the inner gas residual gas in the room may be discharged to the outside through the inner discharge port 16 through the inner discharge line 50 (S170).

The fire detection device 60 may be basically equipped with a gas detection sensor. In this case, when the gas detection sensor detects that the inner gas is no longer left in the room, the second fire damper signal can be transmitted to the first and third fire dampers 15a to 15c. The first and second arming dampers 15a to 15c are opened by the second arming damper signal and the second and third arming dampers 15b to 15c are closed by the second arming damper signal, Air flow can be created.

FIG. 3 is a view showing normal air flow of an inner residual gas discharge system according to another embodiment of the present invention, and FIG. 4 is a view showing an air flow during a fire of an inner residual gas discharge system according to another embodiment of the present invention FIG.

3 and 4 show an internal residual gas discharge system 10b, a fire detection device 60, an inner gas discharge device 70, an inner gas discharge room 1, a main ventilation facility 14, A first through-hole 2a, a first fire damper 15a, a return line 30, a discharge line 80, a fourth through-hole 2d, a fourth fire damper 12, an intake line 20, A fifth through-hole 2e, a fifth arcing damper 15e, a service ventilation facility 92, a vent outlet 16, and a non-return damper 5 are shown have.

The inner gas residual gas discharge system 10b according to another embodiment of the present invention may further include a bypass line in a discharge line of the pre-installed ventilation system in a room environment in which the inner gas is discharged to extinguish a fire in case of fire, The residual gas discharge is automatically enabled.

The configuration related to the intake line 20 in comparison with the inner residual gas discharge system 10a according to the embodiment shown in Figs. 1 and 2 will be described below mainly on the difference.

An exhaust line (80) may be provided in the inner gas discharge room (1).

The discharge line 80 has one end connected to the exhaust outlet 16 and the other end disposed inside the room. The discharge line 80 is a passage through which the inside air of the room is discharged to the outside through the discharge outlet 16 when the main ventilation equipment 14 operates.

A fourth through-hole (2d) through which the discharge line (80) penetrates may be provided in the wall of the inner gas discharge room (1). The discharge line 80 is installed through the fourth through hole 2d.

The room-side discharge line 80 of the fourth through-hole 2d is provided with a fourth fire-fighting damper 15d. The fourth fire dampers 15d are of the NO type, which is opened or closed in response to a signal output from the fire detection system 10a, and is normally closed when the fire is closed.

An exhaust bypass line (90) is installed in parallel with the exhaust line (80). The discharge line 80 and the discharge bypass line 90 meet at two points and a point close to the air suction port side inside the room is called a third intersection point and a point near the air discharge port 16 is called a fourth intersection point .

A fifth through hole (2e) through which the discharge bypass line (90) passes may be provided in the wall of the inner gas discharge room (1). The discharge bypass line 90 is installed through the fifth through hole 2e.

A fifth fire damper 15e is installed in the room-side discharge bypass line 90 of the fifth through-hole 2e. The fifth fire-fighting damper 15e is an NC type that is opened or closed in response to a signal output from the fire detection system 10a, and is normally closed when the fire is detected, and is opened when the fire is extinguished.

And a service ventilation facility 92 may be installed on the discharge bypass line 90. The service ventilation facility 92 is a ventilation facility operated only when it is necessary to discharge the inner residual gas. The sub-ventilation equipment 92 may be constituted by a blower, an aerator, a duct, an air outlet, an air filter, and the like. The detailed configuration and function of the sub-ventilation equipment 92 are obvious to those skilled in the art. And a detailed description thereof will be omitted for convenience of explanation.

The normal air flow is shown in FIG.

Only the first and second fire dampers 15a and 15d of the NO type are opened and the fifth fire damping damper 15e of the NC type is closed.

The outside air introduced through the outside air inflow port 12 is opened in the first ventilation damper 15a and is moved to the main ventilation equipment 14 through the intake line 20 and supplied to the room in step S210. The air in the room is circulated through the return line (30).

The air in the room is discharged to the outside through the discharge line 80 (S220), so that the air in the room can continuously receive fresh air from the outside.

In the event of a fire, the air flow is changed as shown in Fig.

The fire detection apparatus 60 detects whether a fire in the room has occurred (S230). The fire detection device 60 may include at least one of a heat detection sensor, a flame detection sensor, a smoke detection sensor, and a gas detection sensor.

When a fire is detected in the fire detection device 60, a fire detection signal is transmitted to the inner gas discharge device 70 to operate the inner gas discharge device 70, so that the inner gas is discharged into the room (S240). Since the inner gas is released, the fire in the room is suppressed, but the inner gas remains.

After the fire is extinguished, the fire detection device 60 transmits a signal for controlling the fire damper to the first, fourth, and fifth fire dampers 15a, 15d, and 15e. The first and fourth fire dampers 15a and 15d are closed when they receive the first fire damper signal from the fire sensing device 60 and the fifth fire dampers 15e are closed from the fire detection device 60, Upon receiving the signal, it is opened (S250).

In this case, the first fire dampers 15a are closed and the intake lines 20, which were responsible for the normal air flow, are disconnected, and the fourth fire dampers 15d are closed to disconnect the discharge lines 80 .

Then, the fifth fire-fighting damper 15e is opened and the discharge bypass line 90 is connected.

In addition, the fire detection device 60 can transmit a control signal to the service facility 92 as well. Thus, when the service ventilation facility 92 is activated (step S260), the inside air in the room escapes to the outside through the exhaust outlet 16 along the exhaust bypass line 90. [ At this time, when the room is closed, the operation of the service ventilation facility 92 causes a negative pressure to be generated therein, so that the inner gas can be discharged without any remaining amount.

The fire detection device 60 may be basically equipped with a gas detection sensor. In this case, when the gas sensing sensor detects that the inner gas is no longer remaining in the room, the second fire damper signal can be transmitted to the first, fourth, and fifth fire dampers 15a, 15d, and 15e. The first and fourth fire dampers 15a and 15d are opened by a second fire damper signal and the fifth fire dampers 15e are closed by a second fire damping signal, Air flow can be created.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

10a, 10b: Innergen residual gas discharge system
12: outside air inlet 14: main ventilation equipment
16: Exhaust outlet 20: Intake line
30: return line 40: inspiration bypass line
50: inner jets discharge line 60: fire detection device
70: Inner zen gas discharge device 80: Discharge line
90: Emission bypass line 1: Inner zen gas discharge room
2a to 2e: first to fifth through holes 5: non return damper
15a to 15e: first to fifth fire-fighting dampers

Claims (7)

An inner gas residual gas discharge system installed in an inner gas discharge room in which an inner gas is discharged and a fire suppression is performed when a fire occurs,
An intake line installed between the outside air inlet and the main ventilation equipment in the room;
An intake bypass line installed in parallel with the intake line;
And an inner exhaust line, one end of which is connected to the exhaust outlet and the other end is disposed in the room,
Wherein the intake bypass line and the inner discharge line are connected to discharge the inner residual gas in the room to the outside of the room. The method according to claim 1,
A first fire damper of a NO (Norm Open) type installed in the intake line;
A second fire damper of a NC (Normal Close) type installed in the intake bypass line;
Further comprising an NC type third fire damper installed in said inner release line. 3. The method of claim 2,
The first and second fire dampers are closed, the first and second fire dampers are closed,
When an inner gas is discharged from the inner gas discharge device in the course of a fire and the fire is extinguished, when the first fire damper signal indicating fire extinguishing is received from the fire detection device, the first fire damper is closed, The damper and the third fire damper are opened. An inner gas residual gas discharge system installed in an inner gas discharge room in which an inner gas is discharged and a fire suppression is performed when a fire occurs,
An intake line installed between the outside air inlet and the main ventilation equipment in the room;
A discharge line, one end of which is connected to the vent outlet and the other end is disposed in the room;
And an exhaust bypass line provided in parallel to the exhaust line,
Wherein the intake line and the discharge line are connected to each other at normal times and only the discharge bypass line is connected at the time of a fire to discharge the inner residual gas in the room to the outside of the room. 5. The method of claim 4,
A NO-type first fire damper installed in the intake line;
A NO-type fourth fire retardant damper installed in the discharge line;
Further comprising an NC type fifth fire retardant damper installed in said discharge bypass line. 6. The method of claim 5,
The first and second fire-fighting dampers and the fourth fire-fighting damper are opened, the fifth fire-fighting damper is closed,
When an inner gas is discharged from the inner gas discharge device in a fire and the fire is extinguished, when receiving a first fire damper signal indicating fire extinguishing from the fire detection device, the first fire damper and the fourth fire damper And wherein the fifth fire dampers are open. The method according to claim 6,
Further comprising sub-ventilation equipment installed in said discharge line,
Wherein the sub-ventilation facility is operated by the first fire damper signal to form a negative pressure inside the room.

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