KR101050412B1 - Energy-saving kitchen ventilation control system and method - Google Patents

Abstract

The present invention relates to an energy-saving kitchen ventilation system, in particular, by installing a damper for adjusting the air volume in the exhaust duct branch pipe connected to the exhaust fan and the hood, and closes the damper when not using a hot air balloon to minimize ventilation The present invention relates to an energy-saving kitchen ventilation system in which only the exhaust gas for the exhaust air is used and the damper is opened to perform the exhaust function. According to the present invention, a hood for collecting the surrounding air to discharge to the exhaust duct; A temperature sensor which senses the temperature of the inhaled air and transmits data on it to the controller; A controller which opens and closes each damper by calculating the degree of opening and closing of the dampers and the speed of the exhaust fan according to the signal from the temperature sensor, and controls the air volume of the exhaust plate and the air supply fan; One end is connected to the hood and the other end is disposed in the exhaust duct branch pipe installed to be connected to the exhaust duct connected to the exhaust fan, the degree of opening and closing is controlled in accordance with the signal received from the controller to adjust the amount of air passing therethrough Air volume control damper; An exhaust fan that sucks air discharged from the hood through the exhaust duct and changes the speed of the fan according to the instruction from the controller to discharge to the outside; An energy-saving kitchen ventilation control system is provided, including; an air supply fan that interlocks with the exhaust fan and supplies external air therein.

Hood, Exhaust Duct, Controller, Temperature Sensor, Damper, Exhaust Fan, Air Supply Fan, Air Filter

Description

Energy-saving kitchen ventilation control system and method thereof {ENERGY SAVING KITCHEN VENTILATION CONTROL SYSTEM AND METHOD FOR THE SAME}

The present invention relates to a kitchen ventilation control system, and more particularly, to an energy-saving kitchen ventilation control system provided with a damper for adjusting the air flow in the exhaust duct connection.

In a kitchen equipped with a home or a restaurant, a hot air balloon using gas or electric is generally used for cooking, and at this time, smoke, steam, oil vapor, and heat are generated.

To this end, a ventilation fan is installed in the kitchen to discharge the generated smoke, water vapor, oil vapor, and heat to the outside, but only the air around the ventilation fan is installed and forced only by installing the ventilation fan. Most of the air and heat will remain inside the kitchen.

In addition, the above-mentioned system is introduced to exhaust the air through the ventilation fan and the hood and at the same time supply the outside air through the air inlet to provide a smooth ventilation system, the above system is also hot and humid environment, such as summer When operating the air conditioner in a low-temperature dry environment such as winter or winter, the air-conditioned air in the room is discharged to the outside, resulting in a large number of energy wastes, resulting in almost no room air-conditioning regardless of the performance of the air conditioner. It still has its drawbacks.

Accordingly, there is a need for a kitchen ventilation system for maintaining indoor air conditioning while discharging indoor contaminated air to the outside.

The present invention is for the above, in the process of exhausting the polluted air containing the heat and smoke generated during cooking is discharged all the air to the outside to reduce the efficiency of the use of air conditioners, thereby reducing energy waste It is an object of the present invention to provide an energy-saving kitchen ventilation system that prevents the occurrence.

In order to achieve the above object, the present invention is to provide a damper for controlling the air flow rate in the exhaust duct branch pipe connecting the hood and the exhaust fan, and when the hot air balloon is not used, the minimum level for ventilation, for example, about It maintains the opening and closing degree (opening rate) only about 10% to 30% to prevent unnecessary exhaust, and when the temperature sensor disposed in the hood detects a temperature over a predetermined temperature range when the hot air balloon is used, the controller opens the maximum level of opening to the damper. Provides an energy-saving kitchen ventilation system that exhausts by directing open at the rate.

Particularly, in the present invention, when only some hot air balloons are used in a restaurant where a plurality of kitchen hot air balloons are used, the opening ratio of the damper for adjusting the air volume installed in the exhaust duct connection portion connecting the exhaust fan and the hood disposed on the unused hot air balloon is adjusted. Thus, by preventing the air discharged from the air-conditioning and the total amount of the air-conditioned air in the kitchen, by increasing the efficiency of the air conditioner, and the exhaust fan and the amount of air to be sucked and discharged along with the exhaust fan and Provides an energy-saving kitchen ventilation system that can minimize the use of an air supply fan in conjunction with the exhaust fan.

According to one embodiment of the present invention, a hood disposed above each hot air balloon, through which the air suctions the surrounding air; A temperature sensor disposed inside the hood to sense a temperature of inhaled air and transmit data about the temperature to a controller in real time; The control signal for opening and closing is transmitted to a damper motor built in the air volume control damper according to the temperature sensed by the temperature sensor, and the air volume is stored and summed according to the open / closed state of each damper to exhaust the summed air volume. A controller for transmitting a signal for controlling the rotation speed of the fan to the exhaust fan; One end is connected to the hood and the other end is disposed in the exhaust duct branch pipe installed to be connected to the exhaust duct connected to the exhaust fan, the degree of opening and closing is controlled in accordance with the signal received from the controller to adjust the amount of air passing therethrough Air volume damper; An exhaust fan configured to adjust the speed by controlling the rotation speed of the fan according to the instruction from the controller to discharge the air sucked through the exhaust duct from the hood to the outside; An air supply fan interlocked with the exhaust fan to supply external air to the inside in proportion to the amount of air discharged through the exhaust fan; And an air filter disposed between the air supply fan and the intake port connected thereto to filter external air supplied thereto.

According to another embodiment of the present invention, the opening degree of the damper in the kitchen ventilation control system is controlled proportionally according to the temperature range of the air to be sucked.

In addition, according to another embodiment of the present invention, the opening ratio of the damper is characterized in that the step control according to the temperature range of the air to be sucked.

According to another embodiment of the present invention, the energy-saving kitchen ventilation control system further comprises an optical sensor for detecting the generation of smoke or water vapor, the optical sensor is disposed at the end of the hood is generated when cooking A signal containing data on smoke and water vapor is transmitted in real time to the controller.

According to another embodiment of the present invention, the controller compares the data included in the signal received from the optical sensor with a predetermined threshold value in real time, so that the value detected by the optical sensor is greater than or equal to the threshold value. If it is determined, a control signal instructing the maximum opening is transmitted to all the dampers, and control signals for operating the exhaust fan at a predetermined maximum speed are respectively transmitted to the exhaust fan so that rapid exhaustion is achieved. Preferably, the detection of a large amount of smoke and water vapor by the optical sensor and processing thereof are performed regardless of the temperature.

According to another embodiment of the present invention, when the controller detects the state in which the level of water vapor or smoke is reduced below the predetermined threshold by the optical sensor for a predetermined time, the memory is stored in advance. Transmitting a signal to the dampers to open / close the dampers at a predetermined level based on data on the opened / closed state of the dampers immediately before the steam or smoke exceeding the predetermined threshold value, and thereby Sends a signal for the speed control to the exhaust fan.

According to another embodiment of the present invention, the step of sucking the surrounding air through the hood disposed above each hot air balloon to discharge to the exhaust duct branch pipe connected to the hood; A temperature sensor disposed inside the hood detects a temperature of intake air and transmits a signal including data on the temperature to a controller in real time; Comparing, by the controller, a temperature sensed by the temperature sensor with a preset temperature; When the sensed temperature is higher than a preset temperature, transmitting, by the controller, a control signal for opening to a corresponding air volume control damper; The controller detects the open / closed state of each damper in real time and stores the amount of air passing through the dampers, summing the amount of air passing through the respective dampers; Adjusting the amount of air by controlling the rotational speed of the exhaust fan by the controller to discharge the summed amount of air; Discharging air to the outside by the exhaust fan by adjusting the air volume by rotating the exhaust fan; And supplying external air to the inside of the air supply fan in proportion to the amount of air discharged through the exhaust fan in association with the operation of the exhaust fan.

In addition, according to another embodiment of the present invention, the opening degree of the damper is proportionally controlled in accordance with the temperature range of the intake air.

In addition, according to another embodiment of the present invention, the opening degree of the damper may be step controlled according to the temperature range of the air to be sucked.

According to still another embodiment of the present invention, an optical sensor installed at the end of the hood disposed above each hot air balloon detects the occurrence of smoke or water vapor and transmits a signal including data thereon to the controller in real time; Comparing, by the controller, data on the smoke or water vapor generation received from the optical sensor with a threshold previously stored in the controller; If it is determined that the data on the smoke or steam generation received from the optical sensor exceeds the threshold, a control signal is sent to the air volume control dampers instructing the controller to maximize the opening degree of all the air volume control dampers. Making; The controller also transmitting a control signal to the exhaust fan to instruct the exhaust fan to maximize its rotation speed; Opening each damper to the maximum in accordance with an instruction from the controller; Exhausting the air to the outside by the exhaust fan at the maximum speed at its exhaust fan speed according to the instruction from the controller; And supplying external air to the inside of the air supply fan in proportion to the amount of air discharged through the exhaust fan in association with the operation of the exhaust fan.

In addition, according to another embodiment of the present invention, the optical sensor is operated regardless of the change in temperature.

Further, according to another embodiment of the present invention, when the optical sensor detects that the state in which the level of water vapor or smoke is reduced below the predetermined threshold for a predetermined time, the memory in advance Transmitting a signal to the dampers to open / close the dampers at a predetermined level based on data on the opened / closed state of the dampers immediately before the steam or smoke exceeding the predetermined threshold value, and thereby Sends a signal for the speed control to the exhaust fan.

According to the present invention, by installing a damper for controlling the air volume in the exhaust duct branch pipe connected to the exhaust fan and the exhaust duct connected to the hood, by closing the damper when not using a hot air balloon to prevent unnecessary exhaustion and performing only minimal ventilation, when using a hot air balloon The damper is reopened to perform general air discharge function, thereby minimizing the discharge of air-cooled air, increasing the efficiency of air conditioners, and reducing energy consumed by controlling the speed of the exhaust fan and the air supply fan. A system is provided.

Embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a schematic diagram schematically showing the overall configuration of the present invention. FIG. 2 is a detailed view of the airflow control damper for controlling the airflow rate passing therethrough indicated by III in FIG. 1.

Referring to FIG. 1, a hood 200 disposed on each hot air balloon for sucking air, a temperature sensor 210 disposed inside each hood 200, and installed at an outer end of each hood 200. An optical sensor 220, one end is connected to the hood and the other end is disposed in the exhaust duct branch 410, the exhaust duct branch is installed to be connected to the exhaust duct 400 connected to the exhaust fan 500, Air flow control damper 300 for opening and closing according to the instruction from the controller 110 to adjust the amount of air passing therethrough, an exhaust fan 500 for discharging the air introduced through the hood to the outside, and the exhaust fan 500 In conjunction with the air supply fan 600 for supplying the outside air therein, a filter (not shown) installed between the air supply fan 600 and the air supply 610 connected thereto, and the opening and closing degree of the damper 300 ( Opening rate) and the fan speed control of the exhaust fan 500 and the supply fan 600 Shown is an energy saving kitchen ventilation control system 100 comprising a lor 110.

According to a preferred embodiment of the present invention, in the kitchen equipped with a plurality of hot air balloon, the surrounding air is sucked through the hood 200 disposed above each hot air balloon, the exhaust duct connected to the hood 200 The air is discharged to the exhaust duct 400 through the branch pipe 410. The exhaust duct 400 is connected to the hood 200 by an exhaust duct branch pipe 410 having one end connected to the hood 200 and the other end connected to the exhaust duct 400. The indoor air sucked through the 200 is discharged to the exhaust duct 400 through the exhaust duct branch pipe 410 and is discharged to the outside by the exhaust fan 500 connected to the exhaust duct 400.

As illustrated in FIG. 1, air exhaust volume control dampers 300 are respectively installed in the exhaust duct branch pipe 410 to adjust an amount of air sucked from the hood 200, and the air volume control dampers 300. In accordance with the control signal from the controller by the damper motor 310 embedded therein, for example, as shown in Figure 2, performs the opening and closing operation.

That is, according to one embodiment of the present invention, the air sucked through the hood 300 is detected by the respective temperature sensor 210 installed inside the hood 300, the respective temperature sensor ( 210 continuously detects the temperature of the air sucked through the hood 200 and transmits the data to the controller 110 in real time.

The controller 110 compares the data received from each temperature sensor 210 with a threshold for a pre-stored temperature range, and if the received data is larger than the threshold, the damper 300 for adjusting the air volume. The control signal for adjusting the opening rate (or opening and closing degree) of the damper 300 is transmitted to the damper motor 310 embedded in the damper motor 310.

The controller 110 controls the opening rate of the damper 300 proportionally according to the range of the suctioned temperature. In general, the opening rate of the damper for controlling the air volume is represented by a curve in the form of a logarithmic or exponential function in which the correspondence between the air volume passing through and the rate of temperature change is shown.

The motor 310 embedded in each damper 300 receiving the control signal from the controller 110 controls the amount of air passing therethrough by opening and closing the damper 300 in accordance with the control signal. The adjusting damper 300 is adjusted to maintain an opening rate of, for example, about 10% to 30% for basic minimal ventilation even when a hot air balloon is not used.

Or preferably, the controller 110 adjusts the air volume control damper in a manner of setting a range in which the opening degree is controlled step by step according to a predetermined temperature range, that is, a step control method.

In addition, the controller 110 stores and stores data on the degree of opening of the respective dampers 300, calculates the air volume passing through each damper 300, and based on the total amount passing through the entire dampers 300 in real time. The air volume is calculated to transmit a signal to the exhaust fan 500 to control the speed of the exhaust fan 500 so as to discharge the total amount of air. In this case, the speed of the exhaust fan 500 is controlled by adjusting the rotation speed of the exhaust fan 500.

In addition, in proportion to the discharge of air to the outside by the exhaust fan 500, the supply fan 600 is operated to supply air from the outside to the room.

The air is introduced into the outside air through the exhaust duct 400 through an inlet (not shown) through the outside, which passes through a filter (not shown) for filtering foreign matter contained in the outside air. It is introduced into the room through the air supply 610 by the 600. As described above, the amount of air supplied to the room is proportional to the amount of air discharged to the outside by the exhaust fan 500. In general, the amount of air supplied to the room is preferably, for example, at least 50% or more of the amount of air exhausted.

According to another embodiment of the present invention, during the cooking process, a large amount of smoke or water vapor may generally occur due to heating of food ingredients, combustion of fuel, and the like, regardless of the increase in the temperature of indoor air. May occur.

Referring to FIG. 3, for this purpose, according to the present invention, the energy-saving kitchen ventilation control system 100 further including an optical sensor 220 for detecting a sudden generation of a large amount of smoke or water vapor separately from the temperature sensor 210. An example is shown.

According to another embodiment of the present invention, as shown in Figure 3, the optical sensor 220 is disposed at the end of the hood 200, the smoke or steam generated during cooking the optical sensor 220 Is sensed and data about it is continuously transmitted to the controller 110 in real time.

The controller 110 compares data on the smoke or water vapor generation received from the optical sensor 220 with a threshold for smoke or water vapor stored in advance in the controller 220 in real time. When it is determined that the data on the received smoke or water vapor has exceeded the pre-stored threshold value, the controller 220 provides the total dampers 300 with the maximum degree of opening and closing of the dampers 300, that is, the opening rate. A control signal is instructed to set a level, and a control signal is instructed to exhaust the indoor air sucked through the hood 200 to the outside at a predetermined maximum speed to the exhaust fan 500 so that rapid exhaust is achieved. To be done.

In addition, the controller 110 may determine the passage air flow rate and the speed of the exhaust fan 500 according to the opening rate of each damper 300 immediately before the smoke or water vapor is detected by the optical sensor 220 above a threshold value. Save the data.

In addition, the air supply fan 600 supplies the outside air to the room in proportion to the amount of air exhausted in association with the operation of the exhaust fan 500. In general, the amount of air supplied to the room is preferably, for example, at least 50% or more of the amount of air exhausted.

After sufficient evacuation, if it is determined that the data for the smoke or water vapor received in real time from the optical sensor 220 by the controller 110 has been reduced below a pre-stored threshold value, the controller 110 determines the angle of the angle. On the basis of the pre-stored data about the passing air volume and the exhaust fan 500 speed according to the opening rate of the damper 300, the opening rate and exhaust fan speed of each damper 300 is a smoke or water vapor of a threshold value or more. The control signal for returning to the state just before being detected is transmitted to each damper 300 and the exhaust fan 500.

In response to the control signal from the controller 110, the operation of each damper 300 and the exhaust fan 500 is returned to the state before the sudden smoke or steam generation.

According to another embodiment of the present invention, the optical sensor 220 operates irrespective of the temperature rise.

4, there is shown a flow chart for the control method of the energy-saving kitchen ventilation control system 100 according to the present invention.

As shown in FIG. 4, according to another embodiment of the present invention, ambient air is sucked through the hood 200 disposed vertically above each hot air balloon, so that one end is connected to the hood 200. And the other end is sent to the exhaust duct 400 through the exhaust duct branch pipe 410 is installed to be connected to the exhaust duct 400 connected to the exhaust fan 500, the exhaust fan through the exhaust duct 400 Air is discharged to the outside by 500. A temperature sensor is installed inside the hood 200 to transmit the temperature of the inhaled air to the controller 110 in real time, and the controller 110 based on the signal from the temperature sensor 210. Controls the operation of the air volume control damper 300 and the exhaust fan 500 installed in the branch pipe (410). In addition, the air supply fan 600 operates in conjunction with the operation of the exhaust fan 500. The control method of the energy-saving kitchen ventilation control system 100 according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

According to another embodiment of the present invention, the temperature sensor 210 disposed inside the hood 200 senses the temperature of ambient air sucked through the hood 200 disposed above each hot air balloon, and The signal including the data about the temperature is transmitted to the controller 110 in real time.

The controller 110 compares the temperature sensed by the temperature sensor 210 with a preset temperature to determine whether the temperature is higher than a preset temperature, and the temperature detected by the temperature sensor 210 is preset in advance. When it is determined that it is higher than the set temperature range, the controller 210 transmits a control signal for opening to the damper motor 310 of the corresponding air volume control damper 300. Here, the controller 300 stores and stores the amount of air passing through each damper 300 in real time, and adds the amount of air passing therethrough, and the speed of the exhaust fan for discharging the summed air flow based on the summed air flow. It calculates and transmits a signal for adjusting it to the exhaust fan (500). The adjustment of the exhaust fan 500 is preferably carried out by controlling the rotation speed of the exhaust fan 500. Here, the controller 110 proportionally controls the opening ratio of the damper 300 according to the range of the suction temperature.

The air supply fan 600 operates in conjunction with the operation of the exhaust fan 500, and external air is supplied to the room by the air supply fan 600. The air supply fan 600 operates in proportion to the amount of air discharged by the exhaust fan 500, that is, the speed of the exhaust fan 500, and the supplied external air is preferably, for example, 50% of the exhaust air. to be. In addition, the outside air sucked through the intake port (not shown) by the air supply fan 600 is filtered by an air filter (not shown) installed between the air supply fan 600 and the intake port to contain the external air. Contaminants, such as dust, may be filtered out.

According to one embodiment of the present invention, the air volume control damper 300 is maintained at a predetermined level, for example, 10% to 30% opening degree for minimal ventilation even when a hot air balloon is not used.

In addition, according to an embodiment of the present invention, when the controller 110 adjusts the opening rate of each damper 300 according to the change in temperature, a plurality of exhaust systems are simultaneously operated by a plurality of exhaust duct branch pipes 410. In the case of a large kitchen to be applied, the opening degree of the damper 300 may be controlled by step control, which sets the opening degree step by step for a certain temperature range.

The above process of evacuation and air supply is preferably repeated until the room temperature reaches a predetermined desired temperature.

When cooking, a large amount of smoke or water vapor may be generated due to heating of food ingredients, combustion of fuel, and the like. Since such smoke or water vapor is generated irrespective of the temperature of indoor air, smoke or water vapor generated regardless of the temperature The above-described temperature sensor 210 is limited to the detection.

To this end, according to another embodiment of the present invention, further comprising an optical sensor 220 for detecting the sudden generation of a large amount of smoke or water vapor separately from the temperature sensor 210, by using a large amount of smoke or water vapor In the event of a sudden occurrence of, a method of performing rapid ventilation to remove it is provided.

Referring to FIG. 5, according to another embodiment of the present invention, a method of performing rapid ventilation for generating a large amount of smoke or water vapor using the optical sensor 220 is illustrated.

As shown in Figure 3, the end of each hood is provided with an optical sensor 220 for detecting smoke or water vapor generated irrespective of temperature.

Each optical sensor detects smoke or water vapor generated in a cooking process in real time, and transmits data on the same to the controller 110.

The controller 110 receives data on smoke or steam generation from the optical sensor 220, compares the generated smoke or water vapor with a threshold previously stored in the controller 110, and is included in the data. If it is determined that the value exceeds the pre-stored threshold, the control signal is transmitted to the respective dampers 300 to instruct the maximum degree of opening of the damper 300. In addition, the controller 110 controls the rotation speed of the exhaust fan 500 to discharge the indoor air sucked through the hood 200 to the exhaust fan 500 to the outside at a predetermined maximum speed. Send it.

The controller 110 also separately stores data on the degree of opening of each damper 300 and the speed of the exhaust fan 500 immediately before the smoke or water vapor is detected by the optical sensor 220 above the threshold. do.

In accordance with the control signal from the controller 500, each damper 300 is opened to the maximum extent, the exhaust fan 500 operates at the maximum speed to discharge the internal air to the outside.

In addition, the air supply fan 600 as described above supplies the outside air in proportion to the amount of air exhausted in conjunction with the operation of the exhaust fan 500.

As described above, the optical sensor 210 detects the level of the generated smoke or water vapor in real time, and transmits the same to the controller 110. The controller 110 includes the water vapor sensor 220. Alternatively, when detecting that the state of the smoke is kept below the predetermined threshold for a predetermined time, opening and closing of the dampers 300 immediately before the generation of water vapor or smoke exceeding the previously stored threshold value. A signal for opening and closing the opening and closing state of the dampers 300 to a predetermined level is transmitted to the dampers 300 based on the data on the state, and accordingly the signal for controlling the rotational speed of the exhaust fan 500 is exhaust fan. Send to 500.

It will be apparent to those skilled in the art that in one embodiment according to the present invention, other modifications, or other embodiments falling within the scope of the present invention, for example, using a damper using a parallel blade, are possible. .

In addition, the present invention has been described with reference to the embodiments of the present invention, but the present invention is not limited thereto, and various modifications within the scope equivalent to the present invention by those skilled in the art to which the present invention pertains, or It will be appreciated that other embodiments are possible.

As above, as we have seen. According to the present invention, when the hot air balloon is not used, the damper installed in the exhaust duct is opened only at the opening degree for minimal ventilation to prevent unnecessary exhaust, and when the hot air balloon is used, the damper is opened according to the passing air volume to perform the air discharge function. By doing so, it is possible to increase the efficiency of the air conditioner and reduce the energy consumed by adjusting the speed of the exhaust fan and the supply fan according to the amount of air discharged.

1 is an overall schematic diagram of an energy-saving kitchen ventilation system according to an embodiment of the present invention;

Figure 2 is a schematic diagram of an energy-saving kitchen ventilation control system according to another embodiment of the present invention,

3 is a flow chart of a control method of the energy-saving kitchen ventilation system according to an embodiment of the present invention, and

Figure 4 is a flow chart of the control method of the energy-saving kitchen ventilation system according to another embodiment of the present invention.

Claims (12)

A hood disposed above each hot air balloon, for sucking air therethrough; A temperature sensor disposed inside the hood to sense a temperature of inhaled air and transmit data about the temperature to a controller in real time; The control signal for opening and closing is transmitted to a damper motor built in the air volume control damper according to the temperature sensed by the temperature sensor, and the air volume is stored and summed according to the open / closed state of each damper to exhaust the summed air volume. A controller for transmitting a signal for controlling the rotation speed of the fan to the exhaust fan; One end is connected to the hood and the other end is disposed in the exhaust duct branch pipe installed to be connected to the exhaust duct connected to the exhaust fan, the degree of opening and closing is controlled in accordance with the signal received from the controller to adjust the amount of air passing therethrough Air volume damper; An exhaust fan configured to adjust the speed by controlling the rotation speed of the fan according to the instruction from the controller to discharge the air sucked through the exhaust duct from the hood to the outside; An air supply fan interlocked with the exhaust fan to supply external air to the inside in proportion to the amount of air discharged through the exhaust fan; And And an air filter disposed between the air supply fan and the intake port connected thereto to filter external air supplied thereto. And an optical sensor disposed at an end of the hood and detecting an occurrence of smoke or water vapor which is disposed at the end of the hood and transmits a signal including data about smoke and water vapor generated during cooking to the controller in real time. , The controller compares the data on the smoke or water vapor included in the signal received from the optical sensor with a predetermined threshold value in real time to determine the degree of smoke or water vapor detected by the optical sensor is greater than or equal to the threshold value. In this case, the control signal is transmitted to all the dampers to indicate the maximum opening, and the control signals for operating the exhaust fan at a predetermined maximum speed are respectively transmitted to the exhaust fan, The controller is further configured to generate smoke or steam exceeding the threshold value when the optical sensor detects that the state of smoke or water vapor is reduced below the predetermined threshold for a predetermined time. On the basis of the data previously stored in advance about the open / closed state of the dampers, a signal for opening / closing the open / closed state of the dampers to a predetermined level is transmitted to the dampers, and accordingly, a signal for controlling the rotational speed of the exhaust fan is exhausted. Energy-saving kitchen ventilation control system, characterized in that the transmission to. The method of claim 1, Opening ratio of the damper is energy-saving kitchen ventilation control system, characterized in that controlled in proportion to the temperature range of the air to be sucked. The method of claim 1, Opening ratio of the damper is energy-saving kitchen ventilation control system, characterized in that step controlled in accordance with the temperature range of the air to be sucked. delete delete delete Sucking ambient air through a hood disposed above each hot air balloon and discharging it to an exhaust duct branch connected to the hood; A temperature sensor disposed inside the hood senses a temperature of intake air and transmits a signal including data on the temperature to a controller in real time; Comparing, by the controller, a temperature sensed by the temperature sensor with a preset temperature; When the sensed temperature is higher than a preset temperature, transmitting, by the controller, a control signal for opening to a corresponding air volume control damper; The controller detects the open / closed state of each damper in real time and stores the amount of air passing through the dampers, summing the amount of air passing through the respective dampers; Adjusting the amount of air by controlling the rotational speed of the exhaust fan by the controller to discharge the summed amount of air; Discharging air to the outside by the exhaust fan by adjusting the air volume by rotating the exhaust fan; And A method of controlling an energy saving kitchen ventilation system comprising: supplying external air to an internal air supply fan in proportion to an amount of air discharged through the exhaust fan in association with an operation of the exhaust fan. Detecting an occurrence of smoke or water vapor by an optical sensor installed at an end of a hood disposed above each hot air balloon, and transmitting a signal including data about the signal to a controller in real time; Comparing, by the controller, data on the smoke or water vapor generation received from the optical sensor with a threshold previously stored in the controller; If it is determined that the data on the smoke or steam generation received from the optical sensor exceeds the threshold, the controller transmits a control signal to the air volume control dampers instructing to maximize the opening degree of all the air volume control dampers. step; The controller also transmitting a control signal to the exhaust fan to instruct the exhaust fan to maximize its rotation speed; Opening each damper to the maximum in accordance with an instruction from the controller; Exhausting the air to the outside by the exhaust fan at the maximum speed at its exhaust fan speed according to the instruction from the controller; And And supplying external air to the inside of the air supply fan in proportion to the amount of air discharged through the exhaust fan in association with the operation of the exhaust fan. The operation of the optical sensor operates regardless of temperature, The controller, when the optical sensor detects that the state of the smoke or water vapor is reduced below the pre-stored threshold value for a predetermined time, the smoke or water vapor exceeding the threshold value immediately before generation Transmitting a signal for opening and closing the damper to a predetermined level based on the data stored in advance about the open and close state of the dampers to the dampers, and accordingly transmits a signal for controlling the rotational speed of the exhaust fan to the exhaust fan Method for controlling an energy-saving kitchen ventilation system, characterized in that. The method of claim 7, wherein Opening ratio of the damper is a method for controlling the energy-saving kitchen ventilation system, characterized in that controlled in proportion to the temperature range of the air to be sucked. The method of claim 7, wherein Opening ratio of the damper is a step of controlling the energy-saving kitchen ventilation system, characterized in that step controlled in accordance with the temperature range of the intake air. delete delete delete

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