CN218296122U - Kitchen accident exhaust system and kitchen appliance - Google Patents

Abstract

The application relates to the technical field of household appliances, and discloses a kitchen accident exhaust system, include: the device comprises an exhaust pipeline, an explosion-proof exhaust fan, a combustible gas detector and a controller. One end of the exhaust pipeline is communicated with the kitchen, and the other end of the exhaust pipeline is communicated with the outside; the explosion-proof exhaust fan is connected with the exhaust pipeline; the combustible gas detector is arranged in the kitchen and used for detecting combustible gas; the controller is connected with explosion-proof exhaust fan and combustible gas detector, can control explosion-proof exhaust fan under the circumstances that detects combustible gas and start, in this application, can handle combustible gas better and leak the accident, eliminates because of the potential safety hazard that combustible gas leaked the existence, and reliability and the security of combustible gas leakage accident are handled in the reinforcing, have greatly ensured user's life and property safety. The application also discloses a kitchen appliance.

Description

Kitchen accident exhaust system and kitchen household appliance

Technical Field

The application relates to the technical field of household appliances, for example to a kitchen accident exhaust system and a kitchen household appliance.

Background

Along with the popularization of natural gas pipelines, natural gas brings convenience and brings potential safety hazards to users, and explosion accidents caused by residential gas leakage often happen, and most of the accidents are caused by improper disposal of users.

The existing household combustible gas alarm only has the functions of detecting leakage, cutting off a gas source and alarming, but lacks the capability of combustible gas accident exhaust, so that combustible gas leaked indoors cannot be automatically discharged outdoors, and has potential safety hazards.

It is clear how to better handle the combustible gas leakage accident, enhance the reliability and safety of handling the combustible gas leakage accident, and ensure the life and property safety of users, which becomes a technical problem to be solved urgently by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended to be a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a kitchen accident exhaust system and a kitchen appliance, which can better process combustible gas leakage accidents, eliminate potential safety hazards caused by combustible gas leakage, enhance the reliability and safety of processing the combustible gas leakage accidents, and greatly guarantee the life and property safety of users.

In some embodiments, a kitchen accident exhaust system, comprising: the device comprises an exhaust pipeline, an explosion-proof exhaust fan, a combustible gas detector and a controller. One end of the exhaust pipeline is communicated with the kitchen, and the other end of the exhaust pipeline is communicated with the outside; the explosion-proof exhaust fan is connected with the exhaust pipeline; the combustible gas detector is arranged in the kitchen and used for detecting combustible gas; the controller is connected with the explosion-proof exhaust fan and the combustible gas detector, and can control the explosion-proof exhaust fan to start under the condition of detecting the combustible gas.

Optionally, a normally closed air valve is arranged in the exhaust pipeline.

Optionally, the air inlet of the explosion-proof exhaust fan is communicated with the air suction part through a pipeline.

Optionally, the air suction portion is provided near a roof or a gas pipe.

Optionally, the combustible gas detector is provided in plurality.

Optionally, the kitchen accident exhaust system further comprises: an emergency shut-off valve. The emergency cut-off valve is arranged on the gas pipe and connected with the controller, and can be controlled by the controller to cut off a flow path in the gas pipe under the condition that combustible gas is detected.

Optionally, the kitchen accident exhaust system further comprises: an alarm. The alarm is connected with the controller and can be controlled by the controller to give an alarm under the condition that combustible gas is detected.

Optionally, the alarm comprises: an audible and visual alarm; and/or a remote alarm.

In some embodiments, the kitchen appliance comprises a kitchen accident exhaust system of any of the above.

Optionally, the household appliance in the kitchen is an air conditioner or a range hood, and the combustible gas detector of the kitchen accident exhaust system is arranged at an inlet of the air conditioner or the range hood.

The kitchen accident exhaust system and the kitchen appliance provided by the embodiment of the disclosure can realize the following technical effects:

when the combustible gas detector detects that combustible gas leaks in a kitchen, a signal of the combustible gas leakage is transmitted to the controller, the controller controls the explosion-proof exhaust fan to be started, the explosion-proof exhaust fan can draw air mixed with the combustible gas in the kitchen into the exhaust pipeline, so that the air in the kitchen is exhausted to the outside by using the exhaust pipeline, the concentration of the combustible gas in the kitchen can be quickly and effectively reduced in an exhaust mode, the probability of accidents such as explosion and the like caused by the combustible gas leakage is reduced, the combustible gas leakage accidents can be better handled by using the explosion-proof exhaust fan and an interlocking control mode between the combustible gas detector and the controller, the potential safety hazards caused by the combustible gas leakage are eliminated, the reliability and the safety of handling the combustible gas leakage accidents are enhanced, and the life and property safety of users are greatly guaranteed.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:

FIG. 1 is a schematic diagram of a kitchen accident exhaust system according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural view of another kitchen accident exhaust system provided by the disclosed embodiment;

FIG. 3 is a schematic structural diagram of the connection between the air suction part and the explosion-proof exhaust fan provided in the embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of another kitchen accident exhaust system provided by the disclosed embodiment;

fig. 5 is a block diagram of a kitchen accident exhaust system provided by an embodiment of the present disclosure.

Reference numerals:

100. an exhaust duct; 101. a rubber sleeve; 102. a horn-shaped structure; 103. a through hole; 200. an explosion-proof exhaust fan; 201. a pipeline; 202. an air suction part; 300. a combustible gas detector; 400. a controller; 500. a normally closed air valve; 600. an emergency shut-off valve; 700. an alarm; 800. a power manager.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure may be understood as specific cases by those of ordinary skill in the art.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the disclosed embodiments can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more, unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. E.g., a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Referring to fig. 1-5, embodiments of the present disclosure provide a kitchen accident exhaust system, including: an exhaust duct 100, an explosion-proof exhaust fan 200, a combustible gas detector 300 and a controller 400. One end of the exhaust duct 100 is communicated with a kitchen, and the other end is communicated with the outside; the explosion-proof exhaust fan 200 is connected with the exhaust duct 100; the combustible gas detector 300 is arranged in the kitchen and used for detecting combustible gas; the controller 400 is connected to the explosion-proof exhaust blower 200 and the combustible gas detector 300, and is capable of controlling the explosion-proof exhaust blower 200 to start when the combustible gas is detected.

By adopting the kitchen accident exhaust system provided by the embodiment of the disclosure, when the combustible gas detector 300 detects that the combustible gas leaks in a kitchen, a signal of the leakage of the combustible gas is transmitted to the controller 400, the controller 400 controls the explosion-proof exhaust fan 200 to be started, the explosion-proof exhaust fan 200 can extract air mixed with the combustible gas in the kitchen to enter the exhaust pipeline 100, so that the air in the kitchen is exhausted to the outside by using the exhaust pipeline 100, the concentration of the combustible gas in the kitchen can be quickly and effectively reduced in an exhaust mode, the probability of accidents such as explosion and the like caused by the leakage of the combustible gas is reduced, the combustible gas leakage accidents can be better processed by using an interlocking control mode among the explosion-proof exhaust fan 200, the combustible gas detector 300 and the controller 400, the potential safety hazards caused by the leakage of the combustible gas are eliminated, the reliability and the safety of the combustible gas leakage accidents are enhanced, and the life and property safety of users are greatly guaranteed.

Optionally, the combustible gas detector 300 is packaged in a kitchen without interference, and preferably, the combustible gas detector 300 is installed in an explosion-proof metal shell with a transparent glass, wherein the explosion-proof metal shell is provided with a plurality of openings, and an air inlet and an air outlet of the combustible gas detector 300 are arranged on the openings in a penetrating manner. Like this, whether can make combustible gas detector 300 stable and efficient detect the kitchen and take place combustible gas and leak, help reducing the influence of external environment to combustible gas detector 300 testing process, guarantee the noninterference of detection process, and utilize explosion-proof metal casing can strengthen the protectiveness to combustible gas detector 300, help prolonging combustible gas detector 300 life.

It is worth mentioning that: after the combustible gas detector 300 is packaged without interference, a magnetic programming button on a transmitter panel of the detector can be operated by a handheld magnetic programming tool, so that the interference-free operation of a sensor interface is ensured, all calibration and field debugging can be operated remotely, the original state of the combustible gas detector 300 is ensured, and the condition that the detection process is influenced by directly operating the combustible gas detector 300 is avoided.

Optionally, the combustible gas detector 300 includes a concentration sensor. Like this, when taking place combustible gas in the kitchen and leaking, but utilize the concentration sensor real-time supervision combustible gas's concentration, the user of being convenient for masters the concentration value of combustible gas in the kitchen fast and accurately, help adopting safety measure to handle combustible gas leakage accident according to combustible gas's concentration in the kitchen, and when concentration sensor detects that combustible gas concentration reaches the critical point of explosion lower limit or upper limit, in time control explosion-proof exhaust fan 200 through controller 400 and start, can reduce the combustible gas's in the kitchen concentration fast and effectively with the mode of airing exhaust, eliminate the potential safety hazard that exists because of combustible gas leaks.

Optionally, the explosion-proof exhaust fan 200 is hermetically connected with the exhaust duct 100. Like this, can strengthen the leakproofness between explosion-proof exhaust fan 200 and the exhaust duct 100 to avoid the combustible gas in the kitchen to flow back to the condition in the kitchen once more through the gap between explosion-proof exhaust fan 200 and the exhaust duct 100, guarantee that combustible gas can be orderly and comprehensive arrange to the kitchen outside by exhaust duct 100, improve the stability and the effect of discharging combustible gas.

As shown in fig. 2, optionally, the exhaust duct 100 is disposed through a wall of the kitchen, and a rubber sleeve 101 is disposed between the exhaust duct 100 and the wall of the kitchen, and the rubber sleeve 101 is sleeved at a position where the exhaust duct 100 is connected to the wall of the kitchen. Therefore, the installation mode of the exhaust duct 100 is simpler, the protection of the exhaust duct 100 can be enhanced by using the rubber sleeve 101, and the condition that the exhaust duct 100 is damaged due to scratch between the exhaust duct 100 and the wall can be avoided.

Alternatively, the end of the exhaust duct 100 outside the kitchen is in a trumpet-shaped structure 102 as shown in fig. 2, or a plurality of through holes 103 are uniformly formed on the side wall of the exhaust duct 100 outside the kitchen as shown in fig. 3. Like this, utilize trumpet shaped structure 102 or through-hole 103 all to enlarge exhaust pipe 100's the area of airing exhaust, can make combustible gas arrange to the kitchen outside diffusion fast through exhaust pipe 100, help the exhaust gas of exhaust pipe 100 comprehensive more and quick in the air of mixing into outdoor to further reduce combustible gas's concentration, reach the purpose that better processing combustible gas leaked.

As shown in fig. 2, a normally closed air valve 500 is optionally provided in the exhaust duct 100. Thus, under the condition that the combustible gas leakage accident occurs in the kitchen, the normally closed air valve 500 is opened to enable the exhaust duct 100 to be in a conducting state, so that after the explosion-proof exhaust fan 200 is started, the air in the kitchen can be smoothly exhausted to the outside of the kitchen through the exhaust duct 100, the smooth and stable exhaust process is ensured, and under the condition that the combustible gas leakage does not occur in the kitchen, the normally closed air valve 500 is in a closed state, thereby not only preventing the outdoor cold and hot air from permeating into the kitchen and increasing the cold and hot loads in the kitchen, but also avoiding the condition that the exhaust duct 100 is blocked due to the dust or sundries in the outdoor air entering the exhaust duct 100, and ensuring the cleanness of the inside of the exhaust duct 100.

Optionally, the normally closed damper 500 is connected to the controller 400, and the controller 400 can be controlled to conduct the exhaust duct 100 when the combustible gas is detected. Like this, under the condition that takes place combustible gas leakage accident in the kitchen, controller 400 control normally closed blast gate 500 opens, makes exhaust duct 100 be in the on-state to after starting explosion-proof exhaust fan 200, can make the air in the kitchen discharge to the kitchen outside through exhaust duct 100 smoothly, guarantee that the process of airing exhaust can go on smoothly and steadily, and the control process is simple high-efficient more.

Alternatively, the normally closed damper 500 is installed to a portion of the exhaust duct 100 located in the kitchen. Like this, be convenient for accomplish the installation of normal close formula blast gate 500 in the kitchen, promote the convenience of installation, the user of being convenient for simultaneously looks over the operating condition of normal close formula blast gate 500.

As shown in fig. 3, optionally, the air inlet of the explosion-proof exhaust fan 200 is communicated with the air suction part 202 through a pipeline 201. Like this, through connecting tube 201 between explosion-proof exhaust fan 200 and air suction portion 202, make the relative position between explosion-proof exhaust fan 200 and the air suction portion 202 possess the adjustability, be convenient for according to the density of combustible gas in the kitchen or the demand of airing exhaust of kitchen, the mounted position of adjustment air suction portion 202 in the kitchen, and can make the air suction portion 202 after the adjustment stable all the time be in connected state with explosion-proof exhaust fan 200, thereby guarantee that the air in the kitchen can smoothly and get into air suction portion 202 fast under explosion-proof exhaust fan 200's effect.

Optionally, the duct 201 is a stainless steel metal hose or a PVC composite ventilation hose, and the duct 201 is hermetically connected to the explosion-proof exhaust fan 200 and the air suction portion 202. Thus, since both the stainless steel metal hose and the PVC composite ventilation hose have excellent properties such as good elasticity, fire resistance, high temperature resistance, etc., the use of the stainless steel metal hose or the PVC composite ventilation hose as the duct 201 is helpful to smoothly connect the explosion-proof exhaust fan 200 and the air suction portion 202 after determining the installation positions of the explosion-proof exhaust fan 200 and the air suction portion 202 in the kitchen.

Optionally, the air suction portion 202 is provided near a roof or a gas pipe. Thus, because the combustible gas commonly used in the kitchen is natural gas or coal gas, and under the standard atmospheric pressure, the density of the natural gas and the density of the coal gas are both smaller than the density of the air, namely the natural gas and the coal gas are both lighter than the air, when the air suction part 202 is installed, the air suction part 202 is installed on the roof, the combustible gas can enter the air suction part 202 more quickly and smoothly, the combustible gas can be installed near a gas pipe, and when the gas pipe leaks, the air suction part 202 can suck the combustible gas into the air suction part 202 quickly and timely.

Alternatively, the air suction portion 202 has an air suction opening of a rectangular or circular structure. Therefore, by utilizing the air suction opening with a regular shape, combustible gas can be stably and quickly sucked into the air suction part 202, and the high air exhaust position in a kitchen can be ensured to be efficiently carried out.

Optionally, under the condition that the air suction portion 202 is arranged near the gas pipe, the distance between the air suction portion 202 and the gas pipe is less than or equal to 60 cm, wherein the air suction portion 202 is positioned above the gas pipe, and the air suction opening faces the gas pipe. Therefore, the distance between the air suction portion 202 and the fuel gas pipe is in a reasonable range, when the fuel gas pipe leaks, the fuel gas can quickly and smoothly enter the air suction portion 202, and the air exhaust efficiency is improved.

Optionally, in a case that the air suction portion 202 is disposed on the roof, a distance between the air suction portion 202 and the roof is greater than or equal to 30 centimeters and less than or equal to 50 centimeters, and the air suction opening faces downward. Thus, the distance between the air suction part 202 and the roof is in a reasonable range, and the air suction part 202 can be used for better extracting combustible gas in a kitchen and is convenient to install and adjust the air suction part 202.

Optionally, the combustible gas detector 300 is provided in plurality. Like this, through setting up a plurality of combustible gas detectors 300, can carry out real-time detection to different positions in the kitchen to all can in time be detected when combustible gas leaks in arbitrary position in the kitchen, improve the reliability of detecting precision and detection result, promote the efficiency of detecting combustible gas in the kitchen.

Optionally, the multiple combustible gas detectors 300 are uniformly arranged along the gas pipe, and the distance between two adjacent combustible gas detectors 300 is greater than or equal to 40 cm and less than or equal to 60 cm. Like this, because combustible gas leaks and leads to because breaking of gas pipe usually to evenly set up a plurality of combustible gas detectors 300 along the gas pipe, make combustible gas detector 300 more be close to the accident source, and then all in time detected when the combustible gas leaks appears in any position of gas pipe, help in time reminding the user to take safety measure to handle combustible gas and leak, avoid because of the condition that combustible gas leaks the accident and enlarges and threaten user's safety.

Alternatively, a plurality of the combustible gas detectors 300 are uniformly disposed at different positions in the kitchen, and the distance between two adjacent combustible gas detectors 300 is greater than 1 meter. Like this, make the distance between the combustible gas detector 300 be in reasonable within range, both can avoid using a greater amount of combustible gas detector 300, can prevent again that combustible gas detector 300 from installing too densely to rationally install combustible gas detector 300 in the kitchen, help controlling the cost of using combustible gas detector 300 when guaranteeing to carry out real-time detection to different positions in the kitchen.

Alternatively, the combustible gas detector 300 is a catalytic type combustible gas detector 300 or an infrared optical type combustible gas detector 300. Thus, the catalytic combustible gas detector 300 measures the concentration of combustible gas by using the resistance change of the heated refractory metal platinum wire, when the combustible gas enters the detector, an oxidation reaction is caused on the surface of the platinum wire, the temperature of the platinum wire is increased by the heat generated by the oxidation reaction, and the resistivity of the platinum wire is changed, so that the combustible gas can be accurately detected, while the infrared optical type detects the combustible gas in the field environment by using an infrared sensor through the absorption principle of an infrared light source, so that the detection precision is high, and the detection process is stable.

As shown in fig. 4, optionally, the kitchen accident exhausting system further comprises: an emergency shut-off valve 600. The quick action emergency valve 600 is provided in the gas pipe, is connected to the controller 400, and can be controlled by the controller 400 to shut off the flow path in the gas pipe when the combustible gas is detected. Like this, when the combustible gas detector 300 detects that there is combustible gas leakage in the kitchen, with signal transmission to controller 400, controller 400 control emergency cut-off valve 600 closes, cut off the intraductal flow path of gas, can avoid the condition that combustible gas lasts the leakage, thereby prevent that combustible gas from leading to the condition of affair expansion because of continuously leaking, in time prevent the emergence of malignant accident, utilize emergency cut-off valve 600 can in time handle combustible gas leakage accident effectively, furthest has reduced the potential safety hazard, user's life and property safety has been ensured.

Optionally, the slam shut valve 600 is a normally open pulse triggered type solenoid valve. Therefore, the normally-open pulse trigger type electromagnetic valve has the characteristics of simple structure, sensitive response, reliable action, accident self-locking and manual reset functions and the like.

As shown in fig. 4, optionally, the kitchen accident exhausting system further comprises: an alarm 700. The alarm 700 is connected to the controller 400 and can be controlled by the controller 400 to give an alarm in case that combustible gas is detected. Like this, when combustible gas detector 300 detects the interior combustible gas that takes place in the kitchen and leaks, controller 400 control alarm 700 sends the warning to the user, and the user of being convenient for can receive combustible gas leakage information the very first time to remind the user to take safety measure, in order to prevent the combustible gas leakage accident enlargements, can in time stop the emergence of malignant accident.

Optionally, an alarm 700 is mounted on the combustible gas detector 300. Thus, the alarm 700 is more reasonably installed, and the occupation of the kitchen indoor space by the alarm 700 is reduced.

Optionally, the alarm 700 comprises: an audible and visual alarm 700; and/or remote alarm 700. Like this, audible-visual alarm 700 can send out sound, two kinds of alarm signal of light, thereby utilize sound and various light to send the signal of warning to the user, can make the user receive alarm information more directly perceived and in time, thereby help in time reminding the user to take safety measure, avoid the emergence of burning and exploding the accident, and remote alarm 700 connected network, but teletransmission data information, if the user is not at home, but the user cell-phone is given to the transferable signal after the accident alarm, but the user receives behind the alarm information the very first time and handles the dangerous situation.

It is worth pointing out that: audible and visual alarm 700 and remote alarm 700 are prior art, but the direct mount is used, helps reduce cost.

As shown in fig. 4-5, optionally, the kitchen accident exhaust system further comprises: a power manager 800. The power manager 800 is connected to the controller 400, and is controlled by the controller 400 to cut off power of other kitchen appliances when the combustible gas is detected. Thus, because the combustible gas can be exploded when meeting open flame or electric spark, such as turning on a lamp or turning on an electric appliance such as a range hood, when the combustible gas leakage in a kitchen is detected, the controller 400 controls the power manager 800 to cut off the power supplies of other kitchen appliances, thereby preventing a user from turning on the electric appliance by mistake, avoiding the situation that the combustible gas is exploded when meeting open flame or electric spark, effectively preventing the combustible gas leakage accident from being expanded, timely preventing the occurrence of malignant accidents, and furthest reducing the potential safety hazard.

Optionally, power manager 800 includes a network power controller. Therefore, the network power controller can realize the remote control of the equipment power supply, is not limited by specific equipment or special programs, does not need to open an equipment shell, can control the power switch of the electric equipment in the authority of any networked computer only by connecting a local area network or the Internet, and inquires, connects, disconnects or restarts the power supply of each equipment of a downstream port, so that a user can directly or through a planning task control the power condition of the equipment in a specified time no matter where the user is, as long as the user can connect into a corresponding network, the most precise management degree and the most humanized control method are provided, the flexible control of various users on various power distribution nodes is met, the user really realizes the new sense of intelligent management, the user does not need to control on the spot, unnecessary time waste is saved, and the user experience sense is enhanced.

With reference to fig. 4, an embodiment of the present disclosure provides a kitchen appliance including the kitchen accident exhaust system of any one of the above-mentioned embodiments.

When the combustible gas detector 300 detects that combustible gas leaks in a kitchen, a signal indicating that the combustible gas leaks is transmitted to the controller 400, the controller 400 controls the explosion-proof exhaust fan 200 to be started, and the explosion-proof exhaust fan 200 can draw air mixed with the combustible gas in the kitchen into the exhaust pipeline 100, so that the air in the kitchen is exhausted to the outside by using the exhaust pipeline 100, the concentration of the combustible gas in the kitchen can be quickly and effectively reduced in an exhaust mode, the probability of accidents such as explosion and the like caused by the leakage of the combustible gas is reduced, and by using an interlocking control mode among the explosion-proof exhaust fan 200, the combustible gas detector 300 and the controller 400, the leakage accidents of the combustible gas can be better processed, potential safety hazards caused by the leakage of the combustible gas are eliminated, the reliability and the safety of processing of the leakage accidents of the combustible gas are enhanced, and the life and property safety of users are greatly guaranteed.

Optionally, the household electrical appliance in a kitchen is an air conditioner or a range hood, and the combustible gas detector 300 of the kitchen accident exhaust system is arranged at an inlet of the air conditioner or the range hood. Like this, air conditioner or lampblack absorber are the household electrical appliances who uses always in the kitchen, all possess the ability of the air-out in the extraction kitchen, thereby when carrying out the kitchen exhaust, because the air in the kitchen is all in the import entering air conditioner or lampblack absorber, and it is outdoor to discharge under the effect of air conditioner or lampblack absorber, consequently install combustible gas detector 300 in the import department of air conditioner or lampblack absorber, thereby combustible gas detector 300 can in time detect combustible gas when taking place combustible gas in the kitchen and leaking, improve the reliability of detection precision and detection result, help in time reminding the user to take safety measure to handle combustible gas and leak.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A kitchen accident exhaust system, comprising:

one end of the exhaust pipeline (100) is communicated with the kitchen, and the other end of the exhaust pipeline is communicated with the outside;

the explosion-proof exhaust fan (200) is connected with the exhaust pipeline (100);

the combustible gas detector (300) is arranged in the kitchen and used for detecting combustible gas;

and the controller (400) is connected with the explosion-proof exhaust fan (200) and the combustible gas detector (300), and can control the explosion-proof exhaust fan (200) to be started under the condition of detecting combustible gas.

2. Kitchen accident ventilation system according to claim 1, characterized in that a normally closed air flap (500) is arranged in the ventilation duct (100).

3. Kitchen accident exhaust system according to claim 1, characterized in that the air inlet of the explosion-proof exhaust fan (200) communicates with the air suction part (202) via a duct (201).

4. Kitchen accident ventilation system according to claim 3, characterised in that the air suction (202) is arranged near a roof or a gas pipe.

5. Kitchen accident ventilation system according to claim 1, characterized in that the combustible gas detector (300) is provided in plurality.

6. Kitchen accident exhaust system according to any of the claims 1 to 5, further comprising:

the emergency cut-off valve (600) is arranged on the gas pipe, is connected with the controller (400), and can be controlled by the controller (400) to cut off a flow path in the gas pipe under the condition that combustible gas is detected.

7. Kitchen accident air exhaust system according to any of the claims 1 to 5, further comprising:

and the alarm (700) is connected with the controller (400) and can be controlled by the controller (400) to give an alarm under the condition that the combustible gas is detected.

8. Kitchen accident ventilation system according to claim 7, characterized in that the alarm (700) comprises:

an audible and visual alarm (700); and/or

A remote alarm (700).

9. A kitchen appliance comprising a kitchen accident ventilation system as claimed in any one of claims 1 to 8.

10. A kitchen appliance as claimed in claim 9, characterized in that it is an air conditioner or a range hood, said combustible gas detector (300) of said kitchen accident exhaust system being arranged at the inlet of said air conditioner or range hood.

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