KR20130098791A - System and method for ventilation control of automatic fire extinguisher apparatus - Google Patents

Abstract

PURPOSE: A system and a method for controlling the ventilation of an automatic fire extinguishing device for kitchens are provided to receive signals sensing anomalous temperature, gas leaking, and toxic gas and to warn fire occurrence, gas leaking, carbon monoxide poisoning, and toxic gas poisoning. CONSTITUTION: A system for controlling the ventilation of an automatic fire extinguishing device for kitchens comprises a gas leaking sensor (120), a gas blocking device (130), a ventilator (140), and a control device (200). The gas leaking sensor senses the leaking of gas supplied from a gas supply pipe. The gas blocking device opens/closes the gas supply of the gas supply pipe. The ventilator discharges the indoor air to the outside through a hood and is equipped with a detecting sensor (141) detecting the concentration of toxic gas included in the indoor air. The control device determines whether or not the gas is leaked based on a sensing signal from the gas leaking sensor, controls the gas blocking device to block the gas supply, determines whether or not the danger caused by the toxic gas occurs based on the sensing signal from the detecting sensor, and starting the operation of the hood when the danger occurs.

Description

Ventilation control system for kitchen automatic fire extinguishing system and its method {SYSTEM AND METHOD FOR VENTILATION CONTROL OF AUTOMATIC FIRE EXTINGUISHER APPARATUS}

The present invention relates to a ventilation control system and method of the automatic fire extinguishing device for a kitchen, and more particularly, to a kitchen automatic fire extinguishing device ventilation control system having a ventilation detection sensor for preventing harmful gas poisoning and harmful gas poisoning. will be.

In general, gas is an essential fuel for our residential life, and it has always been a source of fear for gas accidents, and the casualties caused by gas fires in places such as houses and apartments are increasing day by day.

The conventional installation of gas safety equipment and fire extinguishers is not only inconvenient to install them separately from the fire equipment manufacturers after the installation of kitchen sinks, gas appliances, range hoods, etc., but also for each manufacturer. There was a problem with each other's uncomfortable construction, such as different installation and later installation, and A / S also differed, and there were many complaints from the consumer's point of view.

In addition, the conventional ventilator only serves to ventilate the air by releasing the odor, if poisonous gas is contained in the air due to the generation of carbon monoxide and noxious gas in the hood does not operate the toxic gas poisoning There is a problem that the risk of asphyxiation appears to be greater.

As such, when the gas leaks in the kitchen that handles gas and fire frequently, there are a lot of problems that can cause fatal casualty as well as property loss due to fire due to large and small gas explosion accidents.

The present invention has been invented to solve the above problems, by receiving a temperature abnormality detection signal, gas leakage detection signal, harmful gas detection signal to warn of fire, gas leakage, carbon monoxide poisoning, poisonous gas poisoning, gas leakage It is an object of the present invention to provide a ventilation control system and method for automatic fire extinguishing devices for kitchens, which can protect valuable lives and property by preventing explosions, fire accidents, carbon monoxide poisoning and poisonous gas poisoning accidents.

In addition, the present invention can start the operation of the hood when the detection amount of the harmful gas on the basis of the detection signal from the ventilator and notify the guard room to prevent the risk of harmful gas poisoning and asphyxiation directly connected to life. An object of the present invention is to provide a ventilation control system and a method of automatic fire extinguishing for a kitchen.

Gas leak detection device for detecting the leakage of the gas supplied from the gas supply pipe to achieve the above object; A gas circuit breaker that opens and closes a gas supply of the gas supply pipe; A ventilator provided with a detection sensor for discharging indoor air to the outside through a hood and detecting a concentration of harmful gas contained in the air; And determining whether or not the gas is leaked based on the detection signal from the gas leakage detection device to block the gas supply by controlling the gas circuit breaker, and whether or not a dangerous situation is caused by a harmful gas based on the detection signal from the detection sensor. And a control device for determining and initiating operation of the hood when a dangerous situation occurs.

The gas leak detection apparatus may generate a detection signal that determines that the gas leak is generated when the concentration of the LNG or LPG gas supplied exceeds a preset gas leakage setting value.

The detection sensor of the ventilation device, characterized in that for generating a detection signal to determine that the dangerous situation if the concentration of the harmful gas is more than the predetermined allowable value.

When the control device receives the detection signal from the gas leak detection device, it is determined that the gas leakage situation, characterized in that for warning the gas leakage through the lamp flashing and the alarm sound.

When the control device receives the detection signal from the detection sensor of the ventilator, it is determined that the dangerous situation, to warn of the danger of harmful gas concentration through the flashing lamp and the alarm sound, and to control the ventilator indoors through the hood It is characterized by ventilating the air.

Detecting a leak of gas supplied from a gas supply pipe by a gas leak detection device to achieve the above object; Controlling the gas circuit breaker to block the gas supply by determining that the gas leakage situation is based on a detection signal from the gas leak detection device; Detecting a concentration of harmful gas contained in air by a detection sensor provided inside the ventilation device; And determining, by the control device, whether a dangerous situation occurs due to a noxious gas based on a detection signal from the detection sensor, and starting a hood of the ventilation device when a dangerous situation occurs.

In the step of determining the gas leakage situation based on the detection signal from the gas leak detection device, the gas leak detection device is determined to be a gas leakage situation when the concentration of the LNG or LPG gas supplied exceeds a preset gas leakage setting value. Characterized in that.

In the step of blocking the gas supply by controlling the gas circuit breaker, the control device determines that the gas leakage situation when receiving the detection signal from the gas leakage detection device, to warn the gas leakage through the lamp flashing and alarm sound generation It features.

In the step of determining that the harmful gas concentration is a dangerous situation based on the detection signal from the detection sensor, the detection sensor of the ventilator determines that the harmful gas concentration is a dangerous situation when the detected harmful gas concentration is higher than a preset allowable value. Characterized in that.

In the step of starting the hood operation of the ventilator, the control device is determined to be a dangerous situation when receiving a detection signal from the detection sensor of the ventilator, to warn of the danger of harmful gas concentration through the lamp flashing and the alarm sound By controlling the ventilation device, the indoor air is ventilated through a hood.

Ventilation control system and method of the automatic fire extinguishing device for a kitchen according to the present invention having the configuration as described above by receiving a temperature abnormality detection signal, gas leakage detection signal, harmful gas detection signal to warn of fire, gas leakage, carbon monoxide poisoning Also, it prevents the explosion, fire accident and carbon monoxide poisoning caused by gas leakage, thus protecting valuable lives and property.

In addition, the present invention can start the operation of the hood when the harmful gas detection amount based on the detection signal from the ventilator to prevent the risk of poisonous gas poisoning, harmful gas poisoning and asphyxiation, etc. directly connected to life. It works.

1 is a view illustrating a ventilation control system of an automatic fire extinguishing device for a kitchen according to an embodiment of the present invention.
2 is a view illustrating a detailed configuration of the control device of FIG. 1 according to an embodiment of the present invention.
3 is a view illustrating an installation example of a ventilation control system of an automatic fire extinguishing device for a kitchen according to an embodiment of the present invention.
4 is a view illustrating a ventilation control method of the automatic fire extinguishing device for a kitchen according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to facilitate a person skilled in the art to easily carry out the technical idea of the present invention. . In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Hereinafter, the ventilation control system of the automatic fire extinguishing device for a kitchen according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a view illustrating a ventilation control system of an automatic fire extinguishing device for a kitchen according to an embodiment of the present invention, and FIG. 2 is a view for explaining a detailed configuration of the control device of FIG. 1 according to an embodiment of the present invention. 3 is a view illustrating an installation example of a ventilation control system of an automatic fire extinguishing device for a kitchen according to an embodiment of the present invention.

As shown in Figure 1 and 2, the ventilation control system of the automatic fire extinguishing device for the kitchen of the present invention is largely a temperature sensing device 110, gas leak detection device 120, gas circuit breaker 130, ventilator 140, It is configured to include a detection sensor 141, the control device 200, the fire extinguisher 150, the manipulator 160, the indicator 170.

The gas leak detector 120 detects a leak of gas supplied from the gas supply pipe 131 in the indoor space. The gas leak detection device 120 is installed in a space where a device using a gas is installed, such as a kitchen ceiling or a boiler room, and detects a gas leaking from the corresponding device. For example, the gas leak detection device 120 detects LNG or LPG leakage by a contact combustion detection method, and detects a gas leakage detection signal when the gas concentration in the indoor space is about 0.06% to 1.25%, which is a gas leakage setting value. Create

The gas circuit breaker 130 automatically opens and closes the gas valve, that is, the gas supply according to the control signal of the control device 200. That is, the gas circuit breaker 130 closes the gas valve when a fire occurs according to the control signal of the control device 200. In this case, the gas circuit breaker 130 automatically opens and closes the gas valve by driving a geared motor limit switch drive method or an electronic type, which is generally used for a device that blocks gas.

The gas circuit breaker 130 automatically closes after maintaining the open state of the gas valve for a set time according to the control signal of the control device 200. That is, if the ignition is maintained for a certain time without turning off the gas stove due to user's carelessness after igniting the gas range for cooking in the kitchen of a general household, the cooker may burn or be caused by a fire. 130 is automatically closed after maintaining the open state of the gas valve for a set time in accordance with the control signal of the control device 200.

The ventilator 140 discharges the indoor air to the outside through the hood the smell and contaminated air generated during cooking and cooking in the kitchen. That is, an air supply fan and an exhaust fan are installed inside the ventilation device 140 to exhaust the air and the indoor air of the outdoor air so that the indoor space can be ventilated.

Ventilation device 140 has a detection sensor 141 for detecting the concentration of harmful gases contained in the air therein. The detection sensor 141 compares the noxious gas concentration allowable value with the detected noxious gas concentration, and generates a noxious gas detection signal when the detected concentration is greater than or equal to the allowable value. For example, the detection sensor 141 detects the concentration of harmful gases including VOC gas, carbon monoxide gas, and carbon dioxide gas, and generates a detection signal when the concentration of harmful gases in the air is greater than or equal to the allowable value. At this time, if the harmful gas persists for 60 minutes to 240 minutes at a certain concentration, an alarm should sound and an alarm should be displayed.

The temperature sensing device 110 detects heat (that is, high temperature) generated by fire in the indoor space. That is, the temperature sensing device 110 is installed at a location where a high probability of fire occurs, such as a hood 300 of the sink, and detects heat generated when a fire occurs. At this time, the temperature sensor 110 compares the preset temperature range setting value with the detected temperature and generates a temperature abnormality detection signal when the detected temperature exceeds the temperature range setting value. For example, the temperature sensor 110 generates a temperature anomaly detection signal when a temperature of 140 ° C. or more, which is a temperature range setting value, is detected.

On the other hand, the temperature sensing device 110 may generate a multi-step fire detection signal according to a preset temperature range setting value. For example, the temperature sensor 110 generates a primary signal that is a preliminary fire signal when a temperature of 100 ° C. or more, which is a first temperature range setting value, is detected, and a temperature of 140 ° C. or more, which is a second temperature range setting value, is detected. In this case, a secondary signal, which is a fire occurrence signal, may be generated.

The control device 200 determines whether a fire has occurred based on the detection signal from the temperature sensing device 110. At this time, the control device 200 compares the temperature range setting value and the detected temperature from the temperature sensing device 110, and when the detected temperature exceeds the temperature range setting value, it determines that a fire occurs when receiving a temperature abnormality detection signal. . The control device 200 notifies the occurrence of the fire by the lamp flickering, warning sound generation, etc. according to the fire or not, and the fire extinguisher 150 to extinguish the fire by controlling the gas circuit breaker 130 and the fire extinguisher 150. That is, when it is determined that the fire occurs, the control device 200 controls the gas circuit breaker 130 to block the gas supply, and drives the fire extinguisher 150 to extinguish the fire. Here, the control device 200 may transmit a fire occurrence signal for the fire occurrence to the manipulator 160 or the indicator 170.

The control device 200 determines whether the gas leaks based on the detection signal from the gas leak detection device 120. At this time, when the control device 200 receives the gas leakage detection signal from the gas leak detection device 120, it determines that the gas leakage. If the controller 200 determines that the gas leaks, the controller 200 warns of the gas leak through the lamp flickering or the warning sound. At the same time, the controller 200 controls the gas circuit breaker 130 to block the gas supply. Here, the control device 200 may transmit the gas leakage detection signal received from the gas leak detection device 120 to the manipulator 160 or the indicator 170.

The control device 200 determines whether or not the harmful gas concentration is a dangerous situation based on the detection signal from the detection sensor 141 of the ventilation device 140. At this time, when the control device 200 receives the harmful gas detection signal from the detection sensor 141, it determines that the harmful gas detection amount is a poisoning risk value. When the control device 200 determines that the hazardous gas is dangerous, the lamp warns of a harmful gas poisoning by flashing a lamp or generating a warning sound. At the same time, the control device 200 controls the ventilation device 140 so that the hood 300 is automatically started. Here, the control device 200 may transmit the noxious gas detection signal received from the detection sensor 141 to the manipulator 160 or the indicator 170.

The control device 200 displays the current situation of the fire extinguishing facility. That is, the control device 200 is a temperature sensor 110, a gas circuit breaker 130, a gas leak detection device 120, a ventilation device 140, a detection sensor 141, a control device 200, a ventilation device ( 140), and detects the current situation through the transmission and reception of the fire extinguishing equipment, such as the fire extinguisher 150, and displays the current situation of the fire extinguishing equipment through a lamp, a speaker, and the like. In this case, the control device 200 may transmit the current situation of the previously collected fire extinguishing facilities to the manipulator 160 and the indicator 170.

The control device 200 generates a control signal for closing the gas valve when the open state of the gas valve is maintained for a set time. At this time, the control device 200 transmits the generated control signal to the gas circuit breaker 130 to block the gas valve. That is, the control device 200 counts the time when the gas valve is opened and generates a control signal for shutting off the gas after the set time passes. In this case, the setting time refers to a setting time received from the user or preset in production.

To this end, as shown in FIG. 2, the control device 200 includes a temperature sensor 110, a gas circuit breaker 130, a gas leak detector 120, a ventilator 140, and a detection sensor 141. The temperature sensing device 110 through the interface unit 210 and the interface unit 210 for transmitting and receiving signals and data to and from the fire extinguishing facilities such as the apparatus 200, the fire extinguisher 150, the manipulator 160, and the indicator 170. On the basis of the signal from the gas leakage detecting device 120, the detection sensor 141, the determination unit 230 and the determination unit 230 for determining whether or not the fire occurrence, gas leakage, harmful gas concentration is a dangerous situation It is configured to include a control unit 220 for controlling the driving of the ventilation device 140, the fire extinguisher 150, the gas circuit breaker 130 according to the determination result. In this case, the control device 200 operates by receiving external power from the power supply device 180.

Fire extinguisher 150 to extinguish the fire by releasing the built-in extinguishing agent in accordance with the control signal of the control device 200 when the fire occurs. That is, the fire extinguisher 150 extinguishes the fire by discharging the built-in extinguishing agent through the discharge port to the fire occurrence position when the control signal according to the fire detection is generated in the control device 200. For example, the extinguisher 150 has about 0.8L of reinforcing liquid (K2CO3) embedded in the extinguishing agent, and releases the extinguishing agent through the discharge port 151 when the control signal is generated and releases it in an area of about 0.04 m 2. Extinguish fire.

The manipulator 160 operates the temperature sensor 110, the gas leak detector 120, the gas breaker 130, the ventilator 140, and the fire extinguisher 150 according to a user's operation input. That is, the manipulator 160 is a temperature sensing device 110, a gas leak detection device 120, a gas circuit breaker 130, a ventilation device 140, a fire extinguisher 150 according to a control signal input according to a user's key operation. Start or stop fire extinguishing equipment.

The manipulator 160 may display the current situation by receiving the status information of the temperature sensing device 110, the gas leak detecting device 120, the gas breaker 130, the ventilation device 140, and the fire extinguisher 150. That is, the manipulator 160 receives the status information of the temperature sensing device 110, the gas leak detecting device 120, the gas breaker 130, the ventilation device 140, the fire extinguisher 150, and the lamp, the LED, and the like. Flashes, color changes, etc. indicate the current status of each fire extinguishing system.

The manipulator 160 may display information according to a fire occurrence, gas leakage, or the like. That is, when the manipulator 160 receives the temperature abnormality detection signal or the gas leakage detection signal received from the control device 200, the manipulator 160 notifies the occurrence of the fire or the gas leakage through the lamp flickering, the warning sound.

Hereinafter, the installation of the ventilation control system of the automatic fire extinguishing device for a kitchen according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 3 is a view illustrating an installation example of a ventilation control system of an automatic fire extinguishing device for a kitchen according to an embodiment of the present invention.

As shown in FIG. 3, a hood for discharging smoke, odor, etc. generated during cooking of food to the outside is installed at an upper portion of a gas range installed in a kitchen of a general home. Ventilation control system 100 of the automatic fire extinguisher for the kitchen is installed in conjunction with the hood (300). That is, the outlet of the temperature sensing device 110 and the fire extinguisher 150 is installed on the lower surface of the hood 300, and the ventilation device 140, the fire extinguisher 150, the control device 200 inside the hood 300. Install). At this time, the temperature sensing device 110 is installed so as to be located approximately 500mm to 750mm above the gas range in order to prevent malfunction due to heat generated when using the gas range. The manipulator 160 is installed at the front of the hood for easy access by the user. Gas leak detection device 120 is installed on the kitchen ceiling to detect the gas leak in the kitchen, the gas breaker 130 is installed in the gas supply pipe (131). The ventilation device 140 is installed in the doorway of the kitchen in association with the hood 300.

When the user cooks food in the gas range, the temperature sensor 110 detects the temperature. At this time, when a fire occurs in the gas range, the temperature sensor 110 installed on the lower surface of the hood 300 detects the heat caused by the fire. The temperature sensor 110 detects a fire and generates a temperature abnormality detection signal. The control device 200 determines that a fire has occurred according to the temperature abnormality detection signal from the temperature sensing device 110 and drives the gas circuit breaker 130 to block the gas supply.

Thereafter, the control device 200 transmits a control signal for fire extinguishing to the fire extinguisher 150. Fire extinguisher 150 to extinguish the fire by ejecting the built-in fire extinguishing agent through the discharge port in accordance with the control signal from the control device 200 to the fire generating space.

In addition, when the user cooks food in the gas range, the gas leak detection device 120 detects the leakage of gas in the air. At this time, when the leakage of gas is detected, the gas leak detection device 120 installed on the ceiling of the kitchen generates a gas leakage detection signal. The control apparatus 200 determines that the gas leakage is in accordance with the gas leakage detection signal from the gas leakage detecting apparatus 120, and drives the gas circuit breaker 130 to block the gas supply.

On the other hand, when the user cooks food in the gas range, the detection sensor 141 of the ventilator 140 detects the concentration of harmful gas in the air. At this time, when the risk of harmful gas concentration is detected, the detection sensor 141 provided inside the ventilation device 140 generates a harmful gas detection signal. The control device 200 determines that the harmful gas concentration is a dangerous situation according to the harmful gas detection signal from the detection sensor 141, and starts the hood 300 to ventilate the indoor space.

Hereinafter, the ventilation control method of the automatic fire extinguishing device for a kitchen according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 4 is a view illustrating a ventilation control method of the automatic fire extinguishing device for a kitchen according to an embodiment of the present invention.

First, when the user cooks food in the gas range, the gas leak detection device 120 detects the leakage of the gas supplied from the gas supply pipe 131. (S401) The gas leak detection device 120 detects the contact combustion method. LNG or LPG leakage is detected, and the gas leakage detection signal is generated when the gas concentration in the indoor space is about 0.06% to 1.25%, which is a gas leakage set value.

Next, when it is determined whether the control device 200 leaks gas based on the detection signal from the gas leak detection device 120, the gas circuit breaker 130 is controlled to cut off the gas supply (S402). When the control device 200 receives the gas leakage detection signal from the gas leak detection device 120, the controller 200 determines that the gas is leaked, and controls the gas breaker 130 to block the gas leak.

Next, when the user cooks food in the gas range, the detection sensor 141 provided inside the ventilation device detects the concentration of harmful gas contained in the air. (S403) The detection sensor 141 has a concentration of harmful gas. And detects a noxious gas detection signal if the concentration of noxious gas in the air is above an allowable value.

Next, when it is determined that the harmful gas concentration is a dangerous situation based on the detection signal from the detection sensor 141, the control device 200 starts the hood 300 of the ventilation device 140 to operate the indoor air. Discharge to the outdoors. (S404)

As such, according to the present invention, the ventilation control system and method of an automatic fire extinguishing device for carbon monoxide kitchen by receiving a temperature abnormality detection signal, gas leakage detection signal, VOC detection signal to warn of fire, gas leakage, harmful gas, carbon monoxide poisoning In addition, it can protect valuable lives and property by preventing gas leakage, explosion, fire and carbon monoxide poisoning. In addition, the present invention starts the operation of the hood when the detection amount of VOC gas, harmful gas on the basis of the detection signal from the ventilator to prevent the risk of harmful gas, harmful gas poisoning and asphyxiation directly connected to life. Can be.

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 many variations and modifications may be made without departing from the scope of the present invention. It will be understood that the invention may be practiced.

100: ventilation control system of automatic fire extinguishing system for kitchen
110: temperature detection device 120: gas leak detection device
130 gas breaker 140 ventilator
141: detection sensor 150: fire extinguisher
200: control device 300: hood

Claims (10)

A gas leak detector for detecting a leak of gas supplied from a gas supply pipe;
A gas circuit breaker that opens and closes a gas supply of the gas supply pipe;
A ventilator provided with a detection sensor for discharging indoor air to the outside through a hood and detecting a concentration of harmful gas contained in the air; And
Based on the detection signal from the gas leak detection device to determine whether the gas leaks to control the gas circuit breaker to cut off the gas supply, based on the detection signal from the detection sensor to determine whether a dangerous situation caused by harmful gas A control device for starting the operation of the hood when a dangerous situation occurs;
Ventilation control system of the automatic fire extinguishing device for a kitchen comprising a.
The method of claim 1,
The gas leak detection device,
When the concentration of the LNG or LPG gas supplied exceeds the preset gas leakage setting value, the ventilation control system of the automatic fire extinguishing device for a kitchen, characterized in that for generating a detection signal to determine that the gas leakage situation.
The method of claim 1,
The detection sensor of the ventilation device,
When the concentration of the detected harmful gas is more than the predetermined allowable value ventilation control system of the automatic fire extinguishing device for a kitchen, characterized in that for generating a detection signal to determine the dangerous situation.
The method of claim 1,
The control device includes:
When receiving the detection signal from the gas leak detection device is determined that the gas leakage situation, the lamp control and the ventilation control system of the automatic fire extinguishing device for the kitchen, characterized in that for warning the gas leakage through the alarm sound.
The method of claim 1,
The control device includes:
Receiving a detection signal from the detection sensor of the ventilator is determined to be a dangerous situation, to warn of the dangerous occurrence of the concentration of harmful gases through the lamp flashing and alarm sound, and to control the ventilator to ventilate the indoor air through the hood Ventilation control system of automatic fire extinguishing device for a kitchen, characterized in that.
Detecting, by the gas leak detector, a leak of gas supplied from the gas supply pipe;
Controlling the gas circuit breaker to block the gas supply by determining that the gas leakage situation is based on a detection signal from the gas leak detection device;
Detecting a concentration of harmful gas contained in air by a detection sensor provided inside the ventilation device; And
Determining, by the control device, whether a dangerous situation occurs due to a noxious gas based on a detection signal from the detection sensor, and starting a hood of the ventilation device when a dangerous situation occurs;
Ventilation control method of the automatic fire extinguishing device for a kitchen comprising a.
The method according to claim 6,
In the step of determining the gas leakage situation based on the detection signal from the gas leak detection device,
The gas leak detection device is a ventilation control method of an automatic fire extinguishing device for a kitchen, characterized in that the gas leakage situation is determined if the concentration of the supplied LNG or LPG gas exceeds a predetermined gas leakage set value.
The method according to claim 6,
Controlling the gas circuit breaker to cut off a gas supply;
When the control device receives the detection signal from the gas leak detection device determines that the gas leakage situation, the lamp control and ventilating control method of the automatic fire extinguishing device for a kitchen, characterized in that to warn the gas leakage through the alarm sound.
The method according to claim 6,
In the step of determining that the harmful gas concentration is a dangerous situation based on the detection signal from the detection sensor,
The detection sensor of the ventilator is a ventilation control method of the automatic fire extinguishing device for a kitchen, characterized in that if the detected concentration of harmful gas is more than a predetermined allowable value of the harmful gas concentration.
The method according to claim 6,
In the step of starting the hood operation of the ventilator,
When the control device receives the detection signal from the detection sensor of the ventilator, it is determined that it is a dangerous situation, and warns of the occurrence of hazardous gas concentration through lamp flashing and alarm sound, and controls the ventilator to control the ventilation of the room. Ventilation control method of the automatic fire extinguishing device for a kitchen, characterized in that to ventilate the air.

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