KR102002078B1 - A kitchen hood system for controlling air supply and exhaust airflow in accordance with the setting conditions of the air conditioning system and its control method - Google Patents

Abstract

The present invention relates to a kitchen hood system for controlling air volume of air supply and exhaust in accordance with an air conditioning setting condition and a control method for the same. More specifically, the kitchen hood prevents pollution in a kitchen by smoothly discharging harmful matters generated in the kitchen by mechanical power and is applied to an offshore plant or a high-value vessel. Also, the kitchen hood improves the kitchen environment and, specifically, controls the air volume of the air supply and exhaust in accordance with the air conditioning setting condition of the kitchen in the vessel. Moreover, the kitchen hood includes a variable air volume type control valve and a fire damper on a duct between a hood and an exhaust pipe. So, the kitchen hood achieves the control of the air volume of smooth exhaust and prevents a flame from being spread along the exhaust pipe when the fire breaks out. Also, the kitchen hood controls the air volume of the air supply and exhaust in accordance with the air conditioning setting condition maximizing stability by automatically controlling a cooking mode, a fire mode, and a washing mode in accordance with the condition. The kitchen hood system for controlling air volume of air supply and exhaust includes a range hood (200), a vent pipe (300), a supply pipe (310), a variable air volume type air volume control valve (320), a control box (600), and an extinguishing agent injecting device.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kitchen hood system and an air conditioning system,

[0001] The present invention relates to a kitchen hood for controlling air supply and exhaust airflow in accordance with an air conditioning setting condition, and more particularly, to a kitchen hood and its control method applicable to high value-added ships or offshore, To adjust the air supply and exhaust air flow according to the air condition setting condition of the kitchen in the ship, and it is also possible to control the air flow rate between the hood and the exhaust port by a variable air amount control valve and a fire damper It is possible to control the exhaust air flow rate smoothly and to prevent the flame from spreading through the exhaust duct during the fire, and furthermore, the air conditioning setting condition maximizing the safety by automatically controlling the cooking mode, fire mode and washing mode according to conditions And more particularly to a kitchen hood and a control method thereof.

High value-added vessels (eg cruise ships), offshore plants (eg offshore, FPSO, FSO) require kitchen hoods that can achieve high efficiency and low emissions due to long-term navigation and stay in the ocean.

Such a kitchen hood is different from a conventional kitchen hood provided in a commercial vessel or a passenger ship. In the case of a cruise ship or an offshore plant, since it is necessary to navigate and stay in the ocean for a long time, (US Public Health Service), and NSF (National Sanitation Foundation).

Due to this demand, European H Company has disclosed 'KWH Galley Hood' as WO2006 / 012628.

However, the kitchen hood launched by European H company focuses mainly on the system that can reduce the exhaust gas volume of the hood, and the development of the fire extinguishing system and the monitoring system that can automatically cope with the crisis quickly is insufficient, Especially, since it is not a structure that can vary the amount of air to be ventilated depending on the load of the kitchen equipment, there is a drawback that the efficiency is inferior.

Especially, many harmful substances such as Deep Fat Fryer, Frying Pan, and Griddle which are used in the kitchen are scattered. Especially, when the oil is scattered and the oil vapor (vapor) is exhausted, In order to improve the problem, the supply and exhaust must be performed smoothly, and effective countermeasures are needed.

That is, even in the case of domestic, Patent No. 10-1403291 is disclosed, but most of the domestic starting technologies including this technology have a structure in which the supply and exhaust of the ship can not be changed smoothly according to the air condition of the kitchen in the ship, Since only the air supply fan or the exhaust fan is provided, the air supply or exhaust is always performed with the same air volume. If the internal pressure of the pipe fluctuates, wind loss occurs and it can not cope with it. Or about 50% of the exhaust amount, resulting in a very low efficiency.

In addition, the conventional filter uses a mesh filter, which is a simple filtration type, so that the oil in the vapor is adhered easily and becomes dirty easily, and the oil can not be filtered, so the oil is attached to the inner wall of the pipe, It spreads rapidly to other places, leading to a large fire, which causes a large loss.

In addition, there is not a system that can control efficiently according to the use environment of the kitchen, so systematic and accurate control functions are not available in case of emergency such as cooking, fire or cleaning for sanitation.

Korean Patent No. 10-1403291 (Apr. 28, 2014), kitchen hood with F.A.V.E.S. combination system applying USPHS and NORSOK standard Korean Patent Laid-Open No. 10-2011-0007204 (Jan. 21, 2011), an exhaust system, a system, and a method for improving capturing power and containment power Domestic public office practice 20-2014-0005861 (Nov. 19, 2014), hood for kitchen installation

The present invention has been made in view of the above-described problems in the prior art, and is intended to solve the above problems. The present invention is applied to a high-value-added vessel or an offshore plant and smoothly discharges harmful substances generated in the kitchen by mechanical force, The air supply and exhaust air flow rate is adjusted according to the air condition setting condition of the kitchen in the ship, the variable air volume control valve and the fire damper are further provided on the duct between the hood and the exhaust port, The flame is prevented from spreading through the exhaust duct during a fire in the event of a fire, and furthermore, the cooking mode, the fire mode, and the washing mode are automatically controlled according to conditions, thereby maximizing the safety. And a control method thereof.

The range hood 200 installed on the cooking apparatus 110 in the interior of the in-vessel kitchen 100 and the hood exhaust port 210 of the range hood 200, An exhaust pipe 300 connected between the ducts 400 and connected to the hood supply mechanism 220 of the range hood 200 and an exhaust pipe 300 installed at a part of the length of the exhaust pipe 300, A control box 600 in which a variable air volume air amount control valve 320 that keeps the air blowing amount constant regardless of internal pressure fluctuations of the internal space of the main body 100 and a controller 610 which is a controller installed at one side of the main body 100, The air conditioner according to claim 1, further comprising: a controller (610) installed in the main body (100) for controlling the air supply and exhaust airflow according to an air conditioning setting condition including a fire extinguisher spraying device controlled by the controller (610)

The range hood 200 includes an exhaust separator EXP installed below the hood exhaust unit 210 to form an exhaust zone EX and an exhaust gas separator installed below the hood air supply unit 220, An IR sensor 240 for detecting a surface temperature of the cooking device 110 and switching the cooking mode to a cooking mode; A baffle filter 250 disposed on the side of the hood exhaust port 210 for collecting the contaminants generated in the cooking apparatus 110 in a cyclone manner and an oil component A UV lamp 260 for destroying and decomposing the exhaust gas by a charge action, a spray nozzle NZ connected to a washing water line 500 piped to the kitchen 100 to wash the inside of the exhaust area EX, A flame temperature detector for detecting a flame temperature and switching the flame temperature to a fire mode, And a washing water temperature detection sensor (280) installed in the washing water line (500) for detecting the washing water temperature and switching the washing water mode into the washing mode according to the detected temperature range. Thereby providing a kitchen hood system for controlling air supply and exhaust airflow.

The variable air volume air amount control valve 320 includes a valve housing 324 having a venturi portion 322 therein and a valve housing 324 having a venturi portion 322 fixed to the inner diameter of the valve housing 324 A pair of supports 326, a spindle 328 installed to move through the support 326, an actuator 330 fixed to the outer circumferential surface of the valve housing 324, an actuator 330 fixed to the outer surface of the valve housing 324, A lever 332 connected to the actuator 328 to transmit the power of the actuator 330 to the spindle 328 and a lever 332 fixed on the spindle 328 in front of the venturi 322, And a variable air volume changer 340 that keeps the air volume constant regardless of the change.

The invention also relates to a method of controlling the system described above, comprising: The control method includes a cooking start step, a cooking device temperature detecting step, a cooking mode step, a fire mode step, and a washing mode step. In the cooking start step, the cooker enters the inside of the vessel and turns on the kitchen, A step of turning on the power to the equipment 110, the earth leakage breaker is turned on, the power lamp is turned on, the operation lamp and the cooking equipment 110 are turned on, and the IR sensor 240 is also powered on; In the cooking device temperature detecting step, the detection is repeated if the surface temperature of the cooking device 110 detected by the IR sensor 240 is less than 60 DEG C, and when the temperature exceeds 60 DEG C, ; In the cooking mode step, the controller 610 opens the fire damper 212 so as to maintain an environment in which the cooking can be maintained, thereby allowing the air to flow through the variable damper type air volume control valve 320, 250 and controls the UV lamp 260 to filter and disassemble the pollutant. The flame temperature detecting sensor 270 and the washing water temperature detecting sensor 280 are operated to detect whether or not the fire has occurred, At the same time; If the flame temperature detection sensor 270 detects the flame temperature sensor 270 in the cooking mode over 182 ° C, the controller 610 drives the fire extinguisher to spray the fire extinguishing liquid to suppress the initial fire. In the washing mode step, when the washing water temperature detected by the washing water temperature detecting sensor 280 is 55 ° C or more, the controller 610 supplies washing water through the washing water line 500 and injects the washing water through the spraying nozzle NZ, And the air conditioner setting step is a step of washing the contaminants in the outdoor unit EX.

According to the present invention, the following effects can be obtained.

First, it is applicable to high value-added vessels or offshore plants, and harmful substances generated in the kitchen can be discharged smoothly by mechanical force, thereby preventing kitchen contamination and improving the kitchen environment.

Second, the air supply and exhaust air volume of the kitchen hood is adjusted according to the air condition setting condition of the kitchen hood. In particular, the air volume control valve and the fire damper are further provided on the duct between the hood and the exhaust air, Backflow can be blocked.

Third, the cooking mode, the fire mode, and the washing mode are automatically controlled according to the conditions to improve the safety.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an illustration of a kitchen in a ship on which a kitchen hood system according to the present invention is installed. Fig.
2 is an exemplary perspective view of a range hood and cooking equipment constituting a kitchen hood system according to the present invention.
3 is an exemplary side view of a range hood constituting a kitchen hood system according to the present invention.
FIG. 4 is a view showing an example of a variable air volume type air volume control valve constituting a kitchen hood system according to the present invention.
5 is an exemplary flow chart showing a control method of a kitchen hood system according to the present invention.

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

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

As illustrated in Figures 1 and 2, a kitchen hood system in accordance with the present invention is embodied in an in-vessel kitchen 100.

That is, a cooking hood 200 is installed on the upper part of the cooking apparatus 110 inside the kitchen 100, and a space between the hood vent 210 of the range hood 200 and the exhaust duct 400 is connected to the exhaust pipe 300 And a washing water line 500 is connected to the hood feeding mechanism 220 of the range hood 200 so as to spray the washing water downward from the hood exhaust port 210 by receiving the washing water, do.

In addition, a part of the length of the exhaust pipe 300 may vary the amount of air exhausted according to internal pressure fluctuations of the exhaust pipe 300 so that a constant amount of airflow is always maintained, thereby improving the exhaust efficiency and stabilizing the variable airflow A control valve 320 is further provided.

It is needless to say that the variable air volume type air volume control valve 320 is not limited to the exhaust pipe 300 and may be installed in the air supply pipe 310 as well.

Particularly, a fire damper 330 may further be installed on the exhaust pipe 300 between the exhaust pipe 300, the variable air volume air amount control valve 320 and the exhaust duct 400.

At this time, when the fire occurs, the fire damper 330 is configured to block flame and smoke from being easily spread on the exhaust pipe 300 by the suction pressure of the exhaust fan (not shown) installed on the exhaust duct 400.

That is, the fire-fighting damper 330 prevents smearing of flame and smoke, thereby contributing to restraining the switch to the secondary fire or the large fire.

In addition, a control box 610 having a controller 610 for controlling the functions of the air supply, the fire suppression, and the cleaning related to use of the range hood 200 is automatically installed at one side of the kitchen 100 600 are installed.

In addition, although not shown in the above-described kitchen 100, a fire extinguisher injecting apparatus to be controlled to be operated by a controller 610 built in the control box 600 is further provided.

3, the range hood 200 includes a hood exhaust port 210 to which the exhaust pipe 300 is connected, a hood air supply mechanism 220 to which the air intake port 310 is connected, And an air supply separating plate SUP provided below the hood air supply unit 220 and forming an air supply area SU, An IR sensor 240 for detecting the surface temperature of the cooking device 110 and switching the cooking mode to a cooking mode, A baffle filter 250 for collecting the generated pollutants in a cyclone manner and a baffle filter 250 installed at a lower portion of the hood exhaust port 210 for decomposing and decomposing oil components present in the exhaust region EX by + A lamp 260 is connected to the washing water line 500 piped to the kitchen 100 to spray the inside of the exhaust area EX, A flame temperature detection sensor 270 installed on a ceiling of the range hood 200 for detecting a flame temperature and switching to a fire mode; And a wash water temperature detection sensor 280 for switching to the wash mode according to the detected temperature range.

At this time, both the flame temperature detection sensor 270 and the wash water temperature detection sensor 280 are connected to the controller 610, and a PT100 ohm sensor is preferably used.

The PT100 ohm sensor is a PT sensor for precise detection. The PT sensor is a sensor that uses a characteristic in which the resistance value of platinum changes constantly with temperature. The PT100 ohm sensor has a resistance value at 100 ° C at a temperature of 0 ° C And a sensor that detects the sensor using a constant increase in accordance with the sensor output.

Particularly, the flame temperature detection sensor 270 detects the flame temperature in the range of 143 ° C to 182 ° C. When the temperature is 182 ° C, the flame temperature detection sensor 270 is switched to the fire mode to operate the fire extinguishing liquid injection device. .

Since the cleaning water temperature sensor 280 detects whether the supplied washing water temperature is 55 ° C or higher, the efficiency of separating and removing the oil component is lowered. Therefore, if the washing water temperature is 55 ° C or more.

In addition, a fire damper 212 is further installed in the hood exhaust port 210, and the fire damper 212 is provided to block the inflow of a flame when a fire occurs.

Normally, the fire damper 212 is operated under the control of the controller 610 at an opening time of 75 seconds and a closing time of 15 seconds.

The IR sensor 240 is a non-contact type infrared sensor connected to the controller 610. When the surface temperature of the cooking apparatus 110 reaches 60 占 폚, the IR sensor 240 is switched to the cooking mode under the control of the controller 610, The operation lamp and the fluorescent lamp are turned on and the fire damper 212 is opened and the UV lamp 260 is turned on and the flame temperature detecting sensor 270 and the washing water temperature detecting sensor 270 are turned on, The control unit 280 turns on the variable air volume type air volume control valve 320.

The baffle filter 250 is connected to and controlled by the controller 610. The contaminated source is pulverized by a cyclone method so that the heavy particles are dropped and collected by the strap. The light particles are discharged to the hood exhaust port 210, .

In addition, the UV lamp 260 dissolves the oil component contained in the air inside the exhaust area EX to suppress the generation of oil (vapor), thereby preventing the secondary fire damage diffusion.

In this case, since the UV lamp 260 emits ultraviolet rays, it may adversely affect the human body in an enclosed space such as a kitchen in a ship. Therefore, when the UV lamp 260 is operated, it is preferable that the baffle filter 250 be closed so that the UV does not enter the kitchen cooker side in the exhaust area EX.

In addition, the UV lamp 260 may be configured such that the proximity sensor senses and dries when particles having a pollution source of 7 mm or less float.

In addition, a protective glass 230 may be further provided on the top surface of the range hood 200.

The protective glass 230 may be made of a tempered glass which is installed to be rotated 90 degrees downward from the ceiling surface of the range hood 200 to prevent contamination sources from falling into food during cooking.

In addition, an air jet (AJ) is installed in the air supply area (SU) to generate an air flow so that a contamination source generated in the cooking equipment 110 can be quickly exhausted.

Such an air jet AJ is not always operated but can be selectively driven under the control of the controller 610 according to the pollution degree of the kitchen.

In addition, a hatch door HD for maintenance can be further installed on the ceiling of the range hood 200. The air supply separating plate SUP is provided with an air supply cleaning door SMA And the exhaust separation plate EXP may be provided with an exhaust cleaning door EMA for cleaning contaminants in the exhaust area EX.

Further, a drain port DRA is provided at the lower end of the exhaust area EX to drain the washing water washed through the spray nozzle NZ.

4, the variable air volume air amount control valve 320 includes a valve housing 324 having a venturi portion 322 therein and a valve housing 324 having the venturi portion 322 therebetween, A spindle 328 installed to move through the support 326, an actuator 330 fixed to the outer circumferential surface of the valve housing 324, and a pair of supports 326 fixed to the inner circumference of the valve housing 324, A lever 332 connecting the actuator 330 and the spindle 328 to transmit the power of the actuator 330 to the spindle 328 and a lever 332 fixed on the spindle 328 in front of the venturi 322 And a variable air volume changer 340 that keeps the air volume constant regardless of the pressure change of the exhaust pipe 300.

At this time, the actuator 330 is connected to and controlled by the controller 610. The controller 610 controls the number of the plurality of air flow control valves 320 disposed at a predetermined interval on the exhaust pipe 300 at the front end of the variable air flow control valve 320 (Not shown) installed at eight locations and detecting the airflow information by applying a voltage of 0-10 V, and variably controlling the proportional control method in accordance with the detection information.

A cylinder 342 is mounted on the spindle 328. One end of the cylinder 342 is fixed to the spindle 328 and the spindle 328 penetrates the cylinder 342. The cylinder 342 A fixed cup 346 is fixed to an outer periphery of a cylinder 342 fixed at one end thereof and a movable cup 346 is fixed to the open end of the fixed cup 346. The fixed cup 346 is fixed to the spindle 328, And the center of the flow cone 348 is fitted to the open end side of the cylinder 342 so as to be slidable on the side of the open end side of the cylinder 342. The flow cone 348 is configured such that the cone 348 is fitted and movable within the end length range of the fixed cup 346, The stationary cap 350 is assembled to the outside of the center of the arm 348 and the stationary cap 350 is configured to be restricted by the stopper 352 to move only within a certain range in a state where the stationary cap 350 is fitted to the spindle 328.

A small pressure change inside the exhaust pipe 300 formed in front of the variable air volume air amount control valve 320 causes the flow cone 348 to move in accordance with the pressure with respect to the spindle 328 When the air volume is changed according to a severe pressure change, the air volume changer 340 itself is moved in and out of the venturi section 322 by the operation of the actuator 330, So that a constant air volume can be maintained.

The variable air volume type air volume control valve 320 may be applied to the exhaust pipe 300 as well as the air supply pipe 310.

The control method of the kitchen hood system for controlling the air supply and exhaust airflow according to the air conditioning setting condition according to the present invention having the above-described configuration is as follows.

First, a cooking start step is performed.

Here, the cooking start step includes a step of the cooker entering the inside of the vessel for cooking, turning on the kitchen power, and turning on the cooking appliance 110.

This process includes a series of all processes in which the earth leakage breaker of the control box 600 is turned on, the power lamp is turned on, and the operation lamp and the cooking device 110 are turned on. 240) is also turned on.

When the cooking is started, the IR sensor 240 performs a cooking apparatus temperature detection step for checking whether the surface temperature of the cooking apparatus 110 is 60 ° or more.

If the temperature detected by the IR sensor 240 in the cooking device temperature detecting step is less than 60 ° C, the continuous detection is repeated. If the temperature is more than 60 ° C, the cooking mode is switched under the control of the controller 610.

Here, the cooking mode is a mode for maintaining an environment that can be cooked, for example, a mode for simultaneously managing the filtering, including exhaust, exhaust, and the occurrence of fire.

That is, the controller 610 opens the fire damper 212 to make it possible to exhaust the air, and not only operates the variable airflow type air volume control valve 320 but also operates the baffle filter 250, (260) to filter and decompose and remove pollutants.

In addition, in this cooking mode, the flame temperature detecting sensor 270 and the washing water temperature detecting sensor 280 are also operated to simultaneously check whether the fire is present or not.

When the flame temperature detection sensor 270 detects the cooking mode over 182 占 폚, the flame mode is switched to the fire mode. When the flame temperature detection sensor 270 detects the normal range of 143 占 폚 to 182 占 폚, If it is determined that the detected wash water temperature is equal to or higher than 55 ° C, the control mode is switched to the washing mode step. Otherwise, the controller 610 controls the process repeatedly to detect the process repeatedly.

Here, when the mode is switched to the fire mode, the controller 610 drives the fire extinguisher and injects the fire extinguishing liquid, thereby suppressing the initial fire.

In addition, when the mode is switched to the cleaning mode, the controller 610 supplies cleaning water through the cleaning water line 500 and injects the cleaning water through the injection nozzle NZ to clean contamination sources such as oil in the exhaust area EX.

As described above, the present invention realizes a safer, more stable and efficient kitchen hood management and control by implementing a new concept kitchen hood that was not found in the existing gallery hood.

100: Kitchen
200: Range hood
300: Exhaust pipe
400: exhaust duct
500: wash water line
600: Control box

Claims (3)

A range hood 200 installed on the cooking apparatus 110 in the inside of the vessel 100 and an exhaust pipe 300 connecting between the hood exhaust port 210 of the range hood 200 and the exhaust duct 400, A turbocharger 310 connected to the hood supply mechanism 220 of the range hood 200 and a control unit 300 installed at a part of the length of the exhaust pipe 300 to maintain a constant blowing amount regardless of internal pressure fluctuations of the exhaust pipe 300 A control box 600 in which a controller 600 installed as a controller installed at one side of the kitchen 100 is installed and a control box 600 installed in the controller 100 installed in the kitchen 100, 1. A kitchen hood system for controlling an air supply and exhaust air volume in accordance with an air conditioning setting condition including a fire extinguisher spraying device controlled by a fire extinguisher;
The range hood 200 includes an exhaust separator EXP installed below the hood exhaust unit 210 to form an exhaust zone EX and an exhaust gas separator installed below the hood air supply unit 220, An IR sensor 240 for detecting a surface temperature of the cooking device 110 and switching the cooking mode to a cooking mode; A baffle filter 250 disposed on the side of the hood exhaust port 210 for collecting the contaminants generated in the cooking apparatus 110 in a cyclone manner and an oil component A UV lamp 260 for destroying and decomposing the exhaust gas by a charge action, a spray nozzle NZ connected to a washing water line 500 piped to the kitchen 100 to wash the inside of the exhaust area EX, A flame temperature detector for detecting a flame temperature and switching the flame temperature to a fire mode, Including the output sensor 270, and a wash water temperature detection sensor 280 (108) installed in the wash water line 500 detects the wash water temperature and switching to washing mode according to the detected temperature area;
The variable air volume type air volume control valve 320 includes a valve housing 324 having a venturi portion 322 therein and a pair of valve housings 324 fixed to the inner diameter of the valve housing 324 via the venturi portion 322 A spindle 328 installed to move through the support 326 and an actuator 330 fixed to the outer circumferential surface of the valve housing 324 and an actuator 330 fixed to the actuator 330 and the spindle 328 A lever 332 for connecting the power of the actuator 330 to the spindle 328 by connecting the spindle 328 to the spindle 328 and a lever 332 fixed on the spindle 328 in front of the venturi 322, And a variable air volume changer (340) for maintaining the air volume constant regardless of the air conditioner setting condition.
delete A method for controlling a system according to claim 1, the method comprising:
The control method includes a cooking start step, a cooking equipment temperature detecting step, a cooking mode step, a fire mode step and a washing mode step,
In the cooking start step, the cooker enters the kitchen in the ship, turns on the kitchen power, turns on the cooking appliance 110, turns on the earth leakage breaker, turns on the power lamp, Power is turned on, and power is also applied to the IR sensor 240;
In the cooking device temperature detecting step, the detection is repeated if the surface temperature of the cooking device 110 detected by the IR sensor 240 is less than 60 DEG C, and when the temperature exceeds 60 DEG C, ;
In the cooking mode step, the controller 610 opens the fire damper 212 so as to maintain an environment in which the cooking can be maintained, thereby allowing the air to flow through the variable damper type air volume control valve 320, 250 and controls the UV lamp 260 to filter and disassemble the pollutant. The flame temperature detecting sensor 270 and the washing water temperature detecting sensor 280 are operated to detect whether or not the fire has occurred, At the same time;
If the flame temperature detection sensor 270 detects the flame temperature sensor 270 in the cooking mode over 182 ° C, the controller 610 drives the fire extinguisher to spray the fire extinguishing liquid to suppress the initial fire.
In the washing mode step, when the washing water temperature detected by the washing water temperature detecting sensor 280 is 55 ° C or more, the controller 610 supplies washing water through the washing water line 500 and injects the washing water through the spraying nozzle NZ, (EN) A method of controlling a kitchen hood system, comprising the steps of:

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