CN117212858A - Fireproof control method and smoking equipment - Google Patents

Abstract

The invention belongs to the technical field of electric appliances, and particularly discloses a fireproof control method and smoking equipment, wherein the fireproof control method comprises the following steps: in the cooking process, a cooking temperature detection device is adopted to detect the cooking temperature in real time, and when the cooking temperature exceeds a preset safety temperature, a first fireproof program is executed; in the cooking process, detecting the flame state in real time by adopting an open flame detection device, and executing a second fireproof procedure if the flame state meets the preset fireproof state; the first fire protection procedure includes: the method comprises the steps of sending out a first alarm, and controlling the smoke baffle to close the oil smoke inlet if the cooking temperature is continuously greater than or equal to a preset safety temperature after the first alarm is continuously carried out for a first preset time; the second fire protection procedure includes: and controlling the smoke baffle to close the oil smoke inlet. The fire prevention control method and the smoking equipment provided by the invention can reduce the probability of ignition in the smoking equipment and improve the safety protection performance of the smoking equipment.

Description

Fireproof control method and smoking equipment

Technical Field

The invention relates to the technical field of electrical appliances, in particular to a fireproof control method and smoking equipment.

Background

In the working process of the smoke machine, the problem that cookware or dishes fire can occur due to cooking, pot-turning cooking or other abnormal operation, and the generated flame can rise upwards under the action of negative pressure at the air inlet and enter the smoke machine, so that the smoke machine is internally fired, the fire is spread, and property and even life damage are easily caused.

In the prior art, through setting up culinary art temperature detection device and extinguishing device in the cigarette machine inside, culinary art temperature detection device detects whether there is obvious temperature rising in the cigarette machine inside to judge whether there is the condition of a fire in the cigarette machine inside, when there is the condition of a fire, extinguishing device sprays water to the cigarette machine inside, in order to realize putting out a fire, reduces the probability that the condition of a fire spread.

The mode of smoking equipment fire prevention that prior art provided, although can hinder the spreading of fire to a certain extent, owing to when cooking temperature detection device detects that there is obvious temperature rise in the cigarette machine inside, flame has basically been rolled up to the cigarette machine inside, can inevitably cause the damage to the cigarette machine, is difficult to reach the effect of preventing fires in advance and protecting the cigarette machine.

Disclosure of Invention

The invention aims to provide a fireproof control method and smoking equipment, so as to improve the fireproof performance of the smoking equipment, the safety protection performance of the smoking equipment and the use safety of the smoking equipment.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a fire prevention control method for fire prevention control of a smoking device having a smoke inlet and a smoke baffle capable of selectively opening or closing the smoke inlet, the fire prevention control method comprising:

in the cooking process, a cooking temperature detection device is adopted to detect the cooking temperature in real time, and when the cooking temperature exceeds a preset safety temperature, a first fireproof program is executed;

in the cooking process, detecting a flame state in real time by adopting an open flame detection device, and executing a second fireproof procedure if the flame state meets a preset fireproof state;

the first fire protection procedure includes: a first alarm is sent out, and after the first alarm lasts for a first preset time, if the cooking temperature is continuously greater than or equal to the preset safety temperature, the smoke baffle is controlled to close the oil smoke inlet;

the second fire protection procedure includes: and controlling the smoke baffle plate to close the oil smoke inlet.

As an alternative solution of the fire protection control method, the preset fire protection state includes: the coverage area of the flame is larger than or equal to a preset range, or the spreading height of the flame is larger than or equal to a preset height.

As an alternative solution of a fire protection control method, the fire protection control method includes: when the ratio of the coverage area of the flame in the cooking utensil to S is larger than or equal to a first preset ratio or the ratio of the coverage area of the flame outside the cooking utensil to S is larger than or equal to a second preset ratio, judging that the preset fireproof state is met, wherein S is the opening area of the cooking utensil, the first preset ratio is 0.8-1, and the second preset ratio is 0.4-0.8.

As an alternative solution of a fire protection control method, the fire protection control method includes: when the ratio of the height H of the upper end of the flame from the cooking bench to H is larger than or equal to a preset height ratio, judging that the preset fireproof state is met, wherein H is the distance between the oil smoke inlet and the cooking bench, and the preset height ratio is 0.8-1;

or when the distance between the flame and the oil smoke inlet is smaller than or equal to the preset distance, judging that the preset fireproof state is met.

As an alternative solution to the fire protection control method, the second fire protection procedure further includes: detecting the duration of the preset fireproof state, and controlling the smoke baffle to close the oil smoke inlet when the duration of the preset fireproof state is longer than or equal to the preset safety duration.

As an optional technical solution of a fire protection control method, the open fire detection device is a visual detection device, and the controller of the smoking device is internally provided with the preset safe temperatures corresponding to different cooking states, and the fire protection control method further includes:

when the cooking temperature detection device detects that the duration of the temperature duration reaches a first preset duration, the visual detection device detects a cooking state;

acquiring the preset safe temperature according to the cooking state;

and executing the first fireproof procedure when the cooking temperature reaches a preset safety temperature.

As an alternative solution of the fire protection control method, the fire protection control method further includes: when the first fireproof procedure or the second fireproof procedure is executed, the smoke baffle plate is controlled to close the oil smoke inlet, and the gas stove is controlled to flameout;

and/or, the fire protection control method further comprises: when the first fireproof procedure or the second fireproof procedure is executed, the fan and the air outlet of the smoking device are closed when the smoke baffle plate is controlled to close the oil smoke inlet.

As an alternative technical scheme of the fire prevention control method, a fire-proof baffle is arranged in a smoke collecting cavity of the smoke sucking device, and the fire-proof baffle has an isolation state for blocking the flow of oil smoke from the oil smoke inlet to the fan and a communication state for enabling the oil smoke inlet to be communicated with the fan;

the fire protection control method further comprises the following steps: placing the fire barrier in the connected state when the smoking device is operating normally; and when the preset isolation condition is met, controlling the fireproof partition board to be in the isolation state.

As an alternative technical scheme of a fire prevention control method, a cavity temperature detecting piece is arranged between the fire-proof partition board and the oil smoke inlet, and the fire prevention control method further comprises: the temperature detection part detects the temperature in the cavity of the smoke collecting cavity, and when the temperature in the cavity detected by the temperature detection part is larger than or equal to a first preset temperature, the condition that the preset isolation condition is met is judged.

As an alternative solution of the fire protection control method, the fire protection control method further includes: and simultaneously controlling the temperature detection piece in the cavity to start detection when the second fireproof program is executed.

As an alternative to the fire protection control method, the fire protection partition is provided with a plurality of downward spray holes,

the fire protection control method further comprises the following steps: when the duration that the temperature in the cavity is greater than or equal to the first preset temperature reaches the preset duration, supplying fire extinguishing medium to the spray holes so that the fire extinguishing medium is sprayed downwards to extinguish fire;

or, the control method further includes: when the fire barrier is switched to the isolation state, fire extinguishing medium is supplied to the spray holes so that the fire extinguishing medium is sprayed downwards to extinguish fire.

As an alternative technical scheme of the fire prevention control method, a fire extinguishing device is arranged in the smoking equipment, and an injection hole for injecting fire extinguishing medium is arranged on the smoking equipment;

the fire protection control method further comprises the following steps: and when the duration of the preset fireproof state reaches the second preset duration, starting the fire extinguishing device to spray the fire extinguishing medium downwards to extinguish the fire.

As an alternative technical scheme of the fireproof control method, the second preset time length is 5 s-10 s; and/or the fire extinguishing medium is an inert gas.

The smoke absorbing device comprises a smoke collecting cover, a smoke inlet and a smoke baffle plate capable of selectively opening or closing the smoke inlet are arranged on the smoke collecting cover, an open fire detection device and a cooking temperature detection device are arranged on the smoke collecting cover, the cooking temperature detection device detects the temperature of a cooking bench downwards, the open fire detection device detects whether open fire exists or not, and the smoke absorbing device is controlled by the fireproof control method.

The invention has the beneficial effects that:

according to the fireproof control method provided by the invention, the cooking temperature is detected in real time by arranging the cooking temperature detection device, and when the cooking temperature reaches the preset safety temperature, the first fireproof program is executed, so that the fire risk possibly caused by oil fire or pot burning can be effectively pre-judged through the real-time detection of the cooking temperature; when the first fireproof program is executed, a first alarm is sent out firstly to remind a user to treat hidden danger, so that interruption of a normal cooking program caused by directly taking other fireproof measures is avoided, and cooking experience is improved; after a first preset time when the first alarm is sent out, if the cooking temperature is not reduced, the user is indicated that the cooking state is possibly lost to be mastered, and the risk of fire is relatively high, so that the smoke baffle is controlled to close the oil smoke inlet, and when the fire is avoided, flame is caused to spread along the oil smoke inlet and then the inside of the smoking equipment.

Simultaneously, through setting up open fire detection device real-time detection flame state, can judge in real time whether lead to open fire to produce because of the culinary art maloperation, and whether meet preset fire prevention state through judging flame state, judge open fire and produce the risk that probably takes place the condition of a fire and spread to judge the risk that leads to the condition of a fire because of the culinary art maloperation, and judge the flame and roll up the risk to smoking equipment inside through the oil smoke import, avoid producing the fire prevention maloperation that the local open fire leads to because of normal culinary art in-process, improve fire prevention reliability, when carrying out fire prevention protection to smoking equipment, improve the culinary art and experience.

According to the smoking equipment provided by the invention, by adopting the fireproof control method, the fireproof performance of the smoking equipment can be improved, and the use safety of the smoking equipment can be improved.

Drawings

FIG. 1 is a flow chart of a fire protection control method according to an embodiment of the present invention;

FIG. 2 is a flow chart of a fire protection control method according to a second embodiment of the present invention;

fig. 3 is a cross-sectional view of a fire barrier in an isolated state provided by a second embodiment of the invention;

fig. 4 is a flowchart of a fire protection control method according to a third embodiment of the present invention.

The figures are labeled as follows:

1. fixing the partition board; 11. a first through hole; 12. a first partition structure;

2. a movable partition; 21. a second through hole; 22. a second separation structure; 23. a jet channel; 24. a spray hole; 25. a groove.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

As shown in fig. 1, the embodiment provides a fire prevention control method and a smoking device applying the fire prevention control method, which are applied to control of the smoking device, so as to reduce the probability of ignition inside the smoking device, improve the safety protection performance of the smoking device, and improve the cooking safety.

The smoking device comprises a smoke collecting mechanism, a pumping mechanism and a controller. The smoke collecting mechanism comprises a smoke collecting cover and a smoke baffle plate assembly, wherein the smoke collecting cover is provided with a smoke collecting cavity, and a smoke inlet and a smoke outlet which are communicated with the smoke collecting cavity; the smoke baffle assembly comprises a smoke baffle which moves with the smoke collecting hood and a smoke plate driving unit for driving the smoke baffle to move, and the smoke plate driving unit can drive the smoke baffle to open or close the smoke inlet. The pumping and exhausting mechanism comprises a fan and a smoke exhaust pipe, an air inlet of the fan is communicated with the oil smoke inlet, an air outlet of the fan is communicated with the smoke outlet, and the smoke exhaust pipe is arranged at the smoke outlet. When the fan operates, negative pressure is formed at the oil smoke inlet, and oil smoke enters the smoke collecting cavity from the oil smoke inlet and is discharged to the external environment through the fan and the smoke exhaust pipe in sequence. The controller is connected with the fan and the smoke baffle driving unit in a communication way so as to respectively control the movement of the fan and the smoke baffle plate.

In order to better realize the control of the smoking device, in the embodiment, the smoking device also comprises a cooking temperature detection device and an open fire detection device, wherein the cooking temperature detection device is arranged on the fume collecting hood and is used for detecting the temperature of the cooking bench downwards, so as to detect the temperature of the burner and a cooking appliance on the burner, namely, the cooking temperature; the open fire detection device is arranged on the fume collecting hood and is used for detecting whether open fire and the flame state of the open fire are generated in the cooking process. The cooking temperature detection device and the open fire detection device are both in communication connection with the controller, and the controller can control the fan and the smoke blocking driving unit to operate according to detection signals of the cooking temperature detection device and the open fire detection device.

Since fire hazards may occur during cooking, generally, the reasons for the fire during cooking are mainly as follows:

1. the oil temperature in the pot is too high, when the oil temperature exceeds the smoke point, a large amount of smoke is generated, and when the smoke directly contacts open fire or a heat source, a fire disaster is caused;

2. the temperature of the cookware is too high, for example, dishes are burnt out due to dry burning of the cookware or the cooking process is carried out by people leaving the cookware in the middle, and then the cookware is ignited to generate open fire;

3. improper cooking operation causes oil to splash to the gas range to cause open fire;

4. the cooking mode of the top pan is adopted, so that higher flame is generated in the cooking process, and the flame is close to the oil smoke inlet and is sucked into the smoke machine to cause fire.

The fireproof control method provided by the embodiment comprises the following steps:

detecting the cooking temperature in real time by adopting a cooking temperature detection device, and executing a first fireproof program when the cooking temperature reaches a preset safe temperature;

detecting a flame state in real time by adopting an open flame detection device, and executing a second fireproof procedure if the flame state meets a preset fireproof state;

the first fire protection procedure includes: the method comprises the steps of sending out a first alarm, and controlling the smoke baffle to close the oil smoke inlet if the cooking temperature is continuously greater than or equal to a preset safety temperature after the first alarm is continuously carried out for a first preset time;

the second fire protection procedure includes: and controlling the smoke baffle to close the oil smoke inlet.

In the cooking process, the first and second causes the fire condition, in that the oil temperature or the temperature of the pot is continuously increased, that is, before the open fire is generated, there is a process that the cooking temperature is continuously increased, and when the cooking temperature is increased to a certain temperature, the open fire is generated. The avoidance of the fire can be realized by detecting the temperature of the cooking temperature, namely, the risks of the first fire and the second fire can be prejudged in advance; the third and fourth fires often occur in sudden situations, and cannot be predicted in advance, and once a large open fire is generated, the fire is easily spread to cause potential safety hazards.

According to the fireproof control method provided by the embodiment, the cooking temperature is detected in real time by the cooking temperature detection device, and when the cooking temperature reaches the preset safety temperature, the first fireproof program is executed, so that whether the first or second fire hidden danger possibly occurs can be effectively judged through the real-time detection of the cooking temperature; when the first fireproof program is executed, a first alarm is sent out firstly to remind a user to treat hidden danger, so that interruption of a normal cooking program caused by directly taking other fireproof measures is avoided, and cooking experience is improved; after a first preset time when the first alarm is sent out, if the cooking temperature is not reduced, the user is indicated that the cooking state is possibly lost to be mastered, and the risk of fire is relatively high, so that the smoke baffle is controlled to close the oil smoke inlet, and flame is prevented from entering the smoking equipment along the oil smoke inlet to cause fire spreading when the fire occurs.

Simultaneously, through setting up open fire detection device real-time detection flame state, can judge in real time whether lead to open fire to produce because of the culinary art maloperation, and whether through judging the flame state and satisfy the fire prevention state of predetermineeing, judge the risk that open fire produces probably taking place the condition of a fire and spread, thereby judge the risk that above-mentioned third kind and fourth kind of condition of a fire produced, and judge the risk that the flame is rolled up to smoking equipment inside through the oil smoke import, avoid producing the fire prevention maloperation that the local open fire led to because of normal culinary art in-process, improve fire prevention reliability, when carrying out fire prevention protection to smoking equipment, improve the culinary art and experience.

To further reduce the probability of fire, in this embodiment, the smoking device and the gas stove are arranged in a linkage manner, and the fire protection control method further includes: when the first fireproof procedure or the second fireproof procedure is executed, the smoke baffle is controlled to close the oil smoke inlet, and the gas stove is controlled to flameout. The setting can switch the fire source in time when the fire possibly occurs, so as to avoid open fire generated by continuous heating of the cooking utensil.

In this embodiment, the controller stores preset safe temperatures corresponding to the oil fire, the dry-fire and the dish fire respectively, and the preset safe temperatures are lower than the corresponding fire temperatures, so as to improve the accuracy of fire prejudgment.

The difference between the preset safe temperature and the ignition temperature is greater than or equal to 8 ℃ and less than or equal to 30 ℃, so that when a first alarm is sent, the cooking temperature is close to the ignition temperature but no ignition sign is generated, and the cooking safety is ensured; meanwhile, fire prejudgment caused by large difference between preset safety temperature and fire temperature is avoided, and the safety of fire prejudgment is improved, so that normal cooking process is ensured as much as possible.

The fire prevention control method provided by the embodiment further comprises the following steps:

when the cooking temperature detection device detects that the duration of the temperature duration reaches a first preset duration, the visual detection device detects a cooking state;

acquiring a preset safe temperature according to the cooking state;

and executing a first fire prevention program when the cooking temperature reaches a preset safety temperature.

The first preset time length is 20 s-40 s.

In this embodiment, the open fire detection device is an image detection device, and the fire protection control method further includes: the image detection device is used for detecting the cooking state and the flame state, so that the cost can be reduced.

In this embodiment, the first preset time is 30 s-1200 s, so as to provide the user with time for reacting and performing corresponding control, and meanwhile avoid the ignition caused by the longer first preset time, so as to ensure that the smoking device and the gas stove are closed before the open fire occurs.

In this embodiment, the preset fireproof state is: the coverage of the flame is greater than or equal to a preset range, or the spreading height of the flame is greater than or equal to a preset height. The setting of the preset fireproof state can intuitively judge the range and the spreading probability of flame, and the reliability of fireproof judgment is improved; meanwhile, the judgment of whether the fire occurs is based on whether the oil smoke inlet has obvious temperature rise or not, belongs to the pre-judgment of whether the fire will occur, can better realize the effect of fire protection, and reduces the probability of fire occurrence.

In general, the higher the flame spread height is, the easier the flame spread height is to be sucked into the smoking equipment through the oil smoke inlet, the larger the flame coverage is, the more difficult the flame spread is to be extinguished by a user, and the spread of fire is caused.

In this embodiment, the flame height of the open flame specifically refers to the height h1 of the upper end of the open flame from the cooking bench, and by determining the height position of the upper end of the flame, the risk that the flame is sucked into the smoking device can be more accurately and effectively determined, and the determination accuracy is improved.

In other embodiments, the spreading height of the open flame may be determined by determining the distance h2 between the flame and the oil smoke inlet, and determining that the spreading height of the flame is greater than or equal to the preset height when the distance between the open flame and the oil smoke inlet is less than the preset distance. Under this kind of setting, open flame detection device can be for setting up the flame temperature detection spare near the oil smoke import, and flame temperature detection spare detects the temperature forward, and when the detected temperature of flame temperature detection spare was greater than the settlement temperature, it reaches the position department that is close to the oil smoke import to judge flame.

It is worth noting that the preset height is related to the installation distance H between the oil smoke inlet and the cooking bench. The larger the mounting pitch H, the larger the preset height may be. Because of the difference of the type and the installation position of the smoking equipment, the height of the oil smoke inlet from the cooking bench is different, for example, in the top-draft smoking equipment, the height of the oil smoke inlet from the cooking bench is larger than the height of the oil smoke inlet in the side-draft smoking equipment and the cooking bench, and the preset height can be specifically set according to the signal and the installation position of the smoking equipment.

The distance between the lower side edge of the oil smoke inlet and the cooking bench is set to be H, and the preset height is set to be 0.8H-H, namely when the upper end of the flame is close to the oil smoke inlet, the risk that the flame is sucked into the smoking equipment possibly occurs.

Correspondingly, the fireproof control method comprises the following steps: when the ratio of the height H of the upper end of the flame from the cooking bench to H is larger than or equal to the preset height ratio, judging that the preset fireproof state is met, wherein H is the distance between the oil smoke inlet and the cooking bench, and the preset height ratio is 0.8-1.

When oil drops splash outside due to misoperation, open fire is easy to be initiated around the cooking utensil, and the open fire contacts with dishes or oil in the cooking utensil, so that the dishes in the cooking utensil can be ignited. If the open fire mainly appears in the internal local range of the cooking utensil, the open fire is easy to be extinguished by a user, and the probability of fire spreading is small; when the open fire covers the cooking appliance or forms a wide range of open fire outside the cooking appliance, the possibility of fire spreading is easily generated, and fire hidden danger is generated.

In this embodiment, the coverage area of the open flame includes an in-pot coverage area and an out-pot coverage area. The fire prevention control method provided by the embodiment further comprises the following steps: when the ratio of the coverage area of the flame in the cooking utensil to S is larger than or equal to a first preset ratio or the ratio of the coverage area of the flame outside the cooking utensil to S is larger than or equal to a second preset ratio, the preset fireproof state is judged to be met, S is the opening area of the cooking utensil, the first preset ratio is 0.8-1, and the second preset ratio is 0.4-0.8.

To further reduce the impact on normal cooking, in this embodiment, the second fire protection procedure further includes: detecting the duration of a preset fireproof state, and controlling the smoke baffle to close the oil smoke inlet when the duration of the preset fireproof state is longer than or equal to the preset safety duration. The preset safety duration is preferably less than or equal to 5s.

Above-mentioned setting can get rid of the culinary art circumstances of extensive open flame or higher flame because of normal culinary art leads to better, reduces the execution of second fire prevention procedure and to the influence of normal culinary art, improves smoking equipment's use experience, improves the culinary art experience.

Example two

The present embodiment provides a fire prevention control method and a smoking device using the fire prevention control method, where the fire prevention control method and the smoking device are further improved based on the first embodiment, and the same contents as the first embodiment are not described in detail.

As shown in fig. 2 and 3, in this embodiment, the smoke absorbing device is internally provided with a fireproof partition board, the fireproof partition board is arranged in the smoke collecting cavity and is located between the smoke inlet and the smoke outlet, the fireproof partition board has an isolation state for separating the smoke collecting cavity and a communication state for communicating with the smoke collecting cavity, when the fireproof partition board is in the isolation state, the fireproof partition board separates the smoke collecting cavity into a first cavity and a second cavity, the smoke inlet is communicated with the first cavity, the smoke outlet is communicated with the second cavity, i.e. the air flow from the smoke inlet to the air inlet of the fan is cut off by the fireproof partition board; when the fireproof partition plate is in a communicating state, the first cavity and the second cavity are communicated, namely, the air flow from the oil smoke inlet to the air inlet of the fan is conducted.

When an open flame occurs and the smoke baffle is not closed, and when the smoke baffle is closed, the probability that the flame is sucked into the smoking equipment exists, and in order to reduce the risk of electric ignition caused by the flame spreading in the smoking equipment, the fireproof control method provided by the embodiment further comprises the following steps: when the smoking equipment is in normal operation, the fireproof partition board is in a communicated state; when the preset isolation conditions are met, the fireproof partition plate is controlled to be in an isolation state.

The control mode ensures that the arrangement of the fireproof partition board does not interfere with the normal oil smoke pumping and discharging operation when the smoking equipment normally operates; when the risk that flame is sucked into the smoking equipment exists, the fireproof partition plate can be in an isolation state, so that the probability that flame spreads from the first chamber to the second chamber is reduced, the probability of electric fire is reduced, and the fireproof control effect is improved; simultaneously, because the smoke baffle and the fireproof partition board are closed simultaneously, the first chamber is basically in a closed structure, and the air supply for flame combustion can be reduced, so that the automatic extinction of the flame in the smoking equipment is facilitated.

The fume collecting hood is internally provided with an intracavity temperature detection part, the intracavity temperature detection part is positioned in the first chamber and is close to the fume inlet, and when flame is sucked into the fume sucking equipment, the intracavity temperature detection part detects that the temperature value is increased. That is, in the present embodiment, the preset isolation conditions include: the detected temperature value of the temperature detecting piece in the cavity is larger than or equal to a first preset temperature value. Correspondingly, the fire prevention control method further comprises: the temperature detection part in the cavity detects the temperature of the smoke collecting cavity, and when the temperature detected by the temperature detection part in the cavity is greater than or equal to a first preset temperature, the condition that the preset isolation condition is met is judged.

The internal temperature of the smoke collecting cavity is detected to judge whether flame is sucked into the smoking equipment, so that the reliability of judgment can be improved, and the closing automaticity of the fireproof partition plate is improved.

In other embodiments, the user may send an instruction to close the fire barrier to the controller of the smoking device through a manipulation interface on the smoking device or an APP on the mobile terminal. In such an embodiment, the preset isolation conditions may also be: and controlling to receive an instruction of closing the fireproof partition plate sent by a user.

In other embodiments, the drive end of the fire barrier may extend outside the fume collection hood, and the user may switch states by manually operating the fire barrier to switch the fire barrier to an isolated state.

In still other embodiments, the first and second fire protection procedures may be performed to simultaneously cause the smoke barrier to close and the fire barrier to switch to the isolated state.

In this embodiment, the periphery of the fire-proof partition board is arranged in butt joint with the cavity wall of the smoke collecting cavity, the fire-proof partition board is provided with a plurality of ventilation holes arranged at intervals, the ventilation holes are provided with a maximum ventilation area S1, the ventilation holes are provided with a minimum ventilation area 0, and the effective ventilation area of the ventilation holes can be adjusted between 0 and S1. The arrangement ensures that the fireproof partition board is in a communication state when the effective ventilation area of the ventilation hole is not zero, and achieves an isolation state when the effective ventilation area of the ventilation hole is zero; simultaneously, this kind of setting for the fire prevention baffle not only has the function that switches on first cavity and second cavity and has the function of cutting off first cavity and second cavity, can also change the effect of fume exhaust of smoking equipment and the condensation effect when the fume flows through the fire prevention baffle through the regulation to the effective ventilation area of ventilation hole, enriches the performance of fire prevention baffle, promotes smoking equipment's use experience.

The fireproof partition plate comprises a fixed partition plate 1 and a movable partition plate 2 which are arranged in a stacked manner, the periphery of the fixed partition plate 1 is abutted with the cavity wall of the smoke collecting cavity, a plurality of first through holes 11 are arranged on the fixed partition plate 1 in a determinant, and a first separation structure 12 is formed between every two adjacent first through holes 11; the movable partition plate 2 is provided with a plurality of second through holes 21 in a determinant, a second separation structure 22 is formed between two adjacent second through holes 21, the first through holes 11 and the second through holes 21 are arranged in a one-to-one correspondence manner, and the movable partition plate 2 is arranged on the fixed partition plate 1 in a sliding manner. When the fire barrier is in the communicating state, the first through hole 11 and the corresponding second through hole 21 are at least partially communicated; when the fireproof partition is in an isolated state, the first through holes 11 and the second through holes 21 are arranged in a staggered mode, the second through holes 21 are arranged opposite to the first separation structure 12, and the first through holes 11 are arranged opposite to the second separation structure 22. Thereby causing both the first through hole 11 and the second through hole 21 to be blocked.

In other embodiments, the fireproof partition plate is rotatably installed in the fume collecting hood, and when the fireproof partition plate is in a communicating state, the fireproof partition plate is attached to or flush with the inner wall surface of the back plate of the fume collecting hood so as to avoid the arrangement of the fireproof partition plate from affecting the fume exhaust; when the fireproof partition board is in an isolation state, the fireproof partition board rotates to the periphery to be abutted with the inner wall of the smoke collecting cavity so as to separate the first cavity and the second cavity.

The smoking device further comprises a baffle driving member for driving the fireproof baffle to switch between the communication state and the isolation state, wherein the baffle driving member is positioned in the second chamber so as to prevent flame from acting on the baffle driving member, and the baffle driving member can adopt a structure capable of driving the baffle to slide. The barrier driver is preferably in wireless communication with the controller to reduce the probability of a fire extending to the controller through the barrier driver due to the electrical connection.

In this embodiment, the fire protection control method further includes: when the temperature detected by the temperature detecting piece in the cavity is greater than or equal to the first preset temperature, the alarm module is controlled to send out a second alarm. The setting can remind the user that the smoking equipment has flame inside and potential safety hazard to remind the user to make safety protection as soon as possible.

The fire protection control method further comprises the following steps: when the duration time of the temperature detected by the temperature detecting piece in the cavity is greater than or equal to the first preset temperature and longer than the preset duration time, the alarm module is controlled to send out a third alarm. The third alarm should be more aurally aggressive than the second alarm to alert the user that there is no sign of extinguishing the flame inside the cigarette lighter and that there is a risk of fire spreading.

In order to better realize fire prevention, the second partition structures 22 of two adjacent rows of second through holes 21 are internally provided with injection channels 23, and the lower side surfaces of the second partition structures 22 are provided with a plurality of spray holes 24 communicated with the injection channels 23; one end of the fixed partition board 1 is provided with a communication channel, and one end of all the injection channels 23 are communicated with the communication channel. The fume collecting hood is provided with a medium supply structure which communicates with the communication passage to supply the fire extinguishing medium to the injection passage 23.

When the fire barrier is in the isolated state, the second separation structure 22 is arranged opposite to the first through hole 11, i.e. the spray hole 24 is arranged towards the first chamber. When the medium supply structure supplies water to the communication passage, the water flow is ejected from the ejection hole 24 toward the first chamber.

In this embodiment, the fire protection control method further includes: when the duration that the temperature in the cavity detected by the temperature in the cavity detector is continuously greater than or equal to the first preset temperature value exceeds the preset duration, the fire extinguishing medium is supplied to the spray holes 24 so that the fire extinguishing medium is sprayed downwards to extinguish the fire.

From this, if the isolated effect to flame through keeping off smoke board and fire baffle does not reach the expected effect, when adopting the water spray to put out a fire, put out the fire to the flame in the first cavity, reduce the probability that the intensity of a fire spread. In this embodiment, the fire extinguishing medium is water, and the cost is low. In other embodiments, the fire extinguishing medium may also be an inert gas, a carbon dioxide fire extinguishing agent, a dry powder fire extinguishing agent, or the like.

It will be appreciated that when the fire barrier adopts other structures or other mounting manners on the fume collecting hood, the spray holes 24 and the spray channels 23 may also be directly arranged on the fire barrier, and at this time, the spray channels 23 may also be bent to be arranged in a serpentine shape, so that only one spray channel 23 is arranged, and the communication between the spray channels 23 and the medium supply structure is realized without other structures, and the spray channels 23 may also be arranged in a plurality of straight shapes and communicated by adopting communication channels.

The fire protection control method further comprises the following steps: when the duration that the temperature in the cavity detected by the temperature detector in the cavity is greater than or equal to the first preset temperature is less than the preset duration, judging whether the temperature in the cavity is recovered to a preset normal temperature value, and if so, controlling the fireproof partition plate to be in a communicating state; if not, the fireproof partition is kept in an isolated state.

The fire protection control method further comprises the following steps: in the process of extinguishing fire by spraying the fire extinguishing medium, the temperature in the cavity is detected in real time by the temperature detector in the cavity, and when the temperature in the cavity returns to the preset normal temperature, the fire extinguishing is stopped.

In this embodiment, the medium supply structure may include a water storage tank provided on the fume collecting hood and a water supply pipe connected between the water storage tank and the communication passage, and a water supply switching valve is provided on the water supply pipe. In other embodiments, the media supply structure may also be configured as a water supply connector that extends outside of the fume collection hood and is connected to an external water source via a water supply pipe.

Above-mentioned fire prevention baffle's structure setting, when smoking equipment is in normal operating, if need clear up fire prevention baffle and first cavity, can supply water to the intercommunication passageway to drive fixed baffle 1 reciprocating motion, with the washing of realizing fixed baffle 1, reduce the greasy dirt that adheres to on the fire prevention baffle.

In order to improve the flushing effect on the fixed partition plate 1, the lower side surface of the second partition structure 22 is concavely provided with a groove 25, and the bottom of the groove 25 is provided with the spray hole 24, so that when the first partition structure 12 is aligned with the second partition structure 22, the bottom of the groove 25 is spaced from the upper side surface of the first partition structure 12, and therefore water flow sprayed from the spray hole 24 can flow to the first partition structure 12, and cleaning of the first partition structure 12 is realized.

Example III

As shown in fig. 4, the present embodiment provides a fire prevention control method and a smoking device applying the fire prevention control method, and the fire prevention control method provided in the present embodiment is based on a further improvement of the first embodiment, and the description of the same contents as the first embodiment is omitted.

In this embodiment, the smoking device is provided with a fire extinguishing device therein, and executing the second fire protection program further includes: and when the duration of the preset fireproof state reaches the second preset duration, starting the fire extinguishing device to extinguish the fire of the cooking bench downwards.

Through setting up extinguishing device, can in time put out the fire when producing the open flame that probably stretches, reduce the probability that flame spread, promote fire prevention reliability, promote the safety protection to the kitchen environment. And by setting the second preset time length, a certain time can be provided for the operation which can be executed by the user, so that the user can easily extinguish the fire, and meanwhile, the fire extinguishing device is prevented from being used, and the resource waste is reduced.

The first preset time is 5 s-10 s, misjudgment of possibility of fire spreading caused by too short first preset time is prevented, and fire spreading danger caused by too long first preset time is avoided.

In order to reduce the damage of the fire extinguishing device to the kitchen environment, the fire extinguishing device comprises a main air pipe and an air storage tank, a main nozzle is arranged on the main air pipe, a plurality of air spraying holes are formed in the front side face of the fume collecting hood, the air spraying holes are arranged in one-to-one correspondence with the main nozzles, and compressed fire extinguishing medium is stored in the air storage tank. When the gas storage tank is opened, the fire extinguishing medium flows from the gas storage tank to the main gas pipe and is sprayed downwards through the main nozzle and the gas spraying holes so as to realize fire extinguishing. Because the fire extinguishing medium is used for isolating oxygen for extinguishing fire, the pollution to the kitchen environment and the subsequent cleaning difficulty can be reduced while the fire extinguishing is realized.

The fire extinguishing device further comprises an auxiliary air pipe, the auxiliary air pipe is arranged at the top of the smoke collecting cover, a plurality of auxiliary nozzles facing downwards towards the smoke collecting cavity are arranged on the auxiliary air pipe, an auxiliary control valve is arranged on the auxiliary air pipe, a main control valve is arranged on the main air pipe, and the air inlet end of the auxiliary air pipe is communicated with the air storage tank.

The interior of the fume collecting hood is also provided with an intracavity temperature detection part which is used for detecting the temperature in the fume collecting chamber. The fire prevention control method provided by the embodiment further comprises the following steps:

when the duration of the preset fireproof state reaches the second preset duration, controlling the gas storage tank to enable the fire extinguishing medium to be sprayed downwards through the main gas pipe and the main nozzle so as to extinguish the fire;

when the temperature value detected by the temperature detecting piece in the cavity exceeds a second preset temperature, the air storage tank and the auxiliary control valve are controlled to be opened, so that the auxiliary nozzle sprays fire extinguishing medium downwards to the smoke collecting cavity.

The fire suppression may be carbon dioxide or an inert gas.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims (14)

1. A fire prevention control method for fire prevention control of a smoking device having a smoke inlet and a smoke baffle capable of selectively opening or closing the smoke inlet, the fire prevention control method comprising:

in the cooking process, a cooking temperature detection device is adopted to detect the cooking temperature in real time, and when the cooking temperature exceeds a preset safety temperature, a first fireproof program is executed;

in the cooking process, detecting a flame state in real time by adopting an open flame detection device, and executing a second fireproof procedure if the flame state meets a preset fireproof state;

the first fire protection procedure includes: a first alarm is sent out, and after the first alarm lasts for a first preset time, if the cooking temperature is continuously greater than or equal to the preset safety temperature, the smoke baffle is controlled to close the oil smoke inlet;

the second fire protection procedure includes: and controlling the smoke baffle plate to close the oil smoke inlet.

2. The fire protection control method according to claim 1, wherein the preset fire protection state includes: the coverage area of the flame is larger than or equal to a preset range, or the spreading height of the flame is larger than or equal to a preset height.

3. The fire protection control method according to claim 2, characterized in that the fire protection control method comprises: when the ratio of the coverage area of the flame in the cooking utensil to S is larger than or equal to a first preset ratio or the ratio of the coverage area of the flame outside the cooking utensil to S is larger than or equal to a second preset ratio, judging that the preset fireproof state is met, wherein S is the opening area of the cooking utensil, the first preset ratio is 0.8-1, and the second preset ratio is 0.4-0.8.

4. The fire protection control method according to claim 2, characterized in that the fire protection control method comprises:

when the ratio of the height H1 of the upper end of the flame to the height H of the cooking bench is larger than or equal to a preset height ratio, judging that the preset fireproof state is met, wherein H is the distance between the oil smoke inlet and the cooking bench, and the preset height ratio is 0.8-1;

or when the distance between the flame and the oil smoke inlet is smaller than or equal to the preset distance, judging that the preset fireproof state is met.

5. The fire protection control method of claim 1, wherein the second fire protection procedure further comprises: detecting the duration of the preset fireproof state, and controlling the smoke baffle to close the oil smoke inlet when the duration of the preset fireproof state is longer than or equal to the preset safety duration.

6. The fire protection control method according to claim 1, wherein the open fire detection device is a visual detection device, and the controller of the smoking device has the preset safe temperatures corresponding to different cooking states built therein, and the fire protection control method further comprises:

when the cooking temperature detection device detects that the duration of the temperature duration reaches a first preset duration, the visual detection device detects a cooking state;

acquiring the preset safe temperature according to the cooking state;

and executing the first fireproof procedure when the cooking temperature reaches a preset safety temperature.

7. The fire protection control method according to claim 1, characterized in that the fire protection control method further comprises: when the first fireproof procedure or the second fireproof procedure is executed, the smoke baffle plate is controlled to close the oil smoke inlet, and the gas stove is controlled to flameout;

and/or, the fire protection control method further comprises: when the first fireproof procedure or the second fireproof procedure is executed, the fan and the air outlet of the smoking device are closed when the smoke baffle plate is controlled to close the oil smoke inlet.

8. The fire protection control method according to any one of claims 1 to 7, wherein a fire barrier is provided in a smoke collecting chamber of the smoking device, the fire barrier having an isolated state in which smoke is blocked from flowing from the smoke inlet to a blower and a communicating state in which the smoke inlet communicates with the blower;

the fire protection control method further comprises the following steps: placing the fire barrier in the connected state when the smoking device is operating normally; and when the preset isolation condition is met, controlling the fireproof partition board to be in the isolation state.

9. The fire protection control method of claim 8, wherein an intracavity temperature sensing element is disposed between the fire barrier and the fume inlet, the fire protection control method further comprising: the temperature detection part detects the temperature in the cavity of the smoke collecting cavity, and when the temperature in the cavity detected by the temperature detection part is larger than or equal to a first preset temperature, the condition that the preset isolation condition is met is judged.

10. The fire protection control method of claim 9, further comprising: and simultaneously controlling the temperature detection piece in the cavity to start detection when the second fireproof program is executed.

11. The fire protection control method according to claim 9, characterized in that the fire barrier is provided with a plurality of downwardly directed spray holes (24);

the fire protection control method further comprises the following steps: when the duration that the temperature in the cavity is greater than or equal to the first preset temperature reaches the preset duration, supplying fire extinguishing medium to the spray holes (24) so that the fire extinguishing medium is sprayed downwards to extinguish fire;

or, the control method further includes: when the fire barrier is switched to the isolation state, fire extinguishing medium is supplied to the spray holes (24) so that the fire extinguishing medium is sprayed downwards to extinguish fire.

12. The fire prevention control method according to any one of claims 1 to 7, wherein a fire extinguishing device is provided in the smoking apparatus, and an injection hole for injecting a fire extinguishing medium is provided in the smoking apparatus;

the fire protection control method further comprises the following steps: and when the duration of the preset fireproof state reaches the second preset duration, starting the fire extinguishing device to spray the fire extinguishing medium downwards to extinguish the fire.

13. The fire protection control method according to claim 12, wherein the second preset time period is 5s to 10s; and/or the fire extinguishing medium is an inert gas.

14. A smoking device, characterized in that the smoking device comprises a smoke collecting cover, a smoke inlet and a smoke baffle plate capable of selectively opening or closing the smoke inlet are arranged on the smoke collecting cover, an open fire detection device and a cooking temperature detection device are arranged on the smoke collecting cover, the cooking temperature detection device downwards detects the temperature of a cooking bench, the open fire detection device detects whether open fire exists or not, and the smoking device is controlled by adopting the fireproof control method according to any one of claims 1 to 13.