Gas leakage detection device, gas stove and gas leakage detection method

Abstract

The invention relates to a gas leakage detection device, a gas stove and a gas leakage detection method, and relates to the technical field of gas detection. The gas leakage detection device comprises a gas collection assembly, a detection assembly and an alarm assembly, the gas collection assembly comprises a plurality of gas collection pipes, and the gas collection end of each gas collection pipe is arranged above a corresponding gas leakage point in the gravity direction; the detection assembly comprises a plurality of fuel gas sensors, and the fuel gas sensors are arranged in one-to-one correspondence with the exhaust ends of the gas collecting pipes and used for detecting the fuel gas concentration of the corresponding exhaust ends; the alarm assembly comprises a plurality of warning pieces, and each warning piece is electrically connected with the corresponding gas sensor; when one or more gas sensors detect that the concentration of leaked gas reaches an alarm value, the corresponding warning piece sends out a warning signal. According to the invention, direct observation of a user can be facilitated, and accurate positioning of a gas leakage point is realized.

Description

Technical Field

[0001] This application relates to the technical field of gas detection, and particularly to a gas leakage detection device, a gas stove, and a gas leakage detection method. Background Art

[0002] The safety issue of gas stoves has always been one of the focuses of people's attention. Among them, gas leakage from gas stoves is one of the most common safety hazards, which may lead to serious accidents such as fires and explosions, threatening the life and property safety of users.

[0003] In related technologies, there are detection schemes for indoor gas leakage, but there are still problems that the manifestation of gas leakage from gas stoves is not obvious, and it is difficult to locate the gas leakage point when leakage occurs. Summary of the Invention

[0004] Based on this, in view of the problem that it is difficult to locate the gas leakage point, it is necessary to provide a gas leakage detection device, a gas stove, and a gas leakage detection method.

[0005] To achieve the above object, the technical solution adopted in this application is as follows:

[0006] In a first aspect, an embodiment of this application provides a gas leakage detection device for detecting the concentration of leaked gas from a gas stove. There are multiple gas leakage points on the gas stove. The gas leakage detection device includes:

[0007] A gas collection assembly, which includes multiple gas collection pipes. The gas collection end of each gas collection pipe is arranged above a corresponding one of the gas leakage points along the direction of gravity;

[0008] A detection assembly, which includes multiple gas sensors. Each gas sensor is arranged in one-to-one correspondence with the exhaust end of each gas collection pipe and is used to detect the gas concentration at the corresponding exhaust end; and

[0009] An alarm assembly, which includes multiple warning elements. Each warning element is electrically connected to a corresponding one of the gas sensors;

[0010] When the leakage gas concentration detected by one or more of the gas sensors reaches the alarm value, the corresponding warning element emits a warning signal.

[0011] Through the above design, when each gas sensor detects that the leakage gas concentration at the corresponding gas leakage point reaches the alarm value, a corresponding warning element is powered on and lit, so that the operator can visually observe that gas leakage has occurred, quickly locate the leakage point according to the corresponding warning element, and perform maintenance in time.

[0012] In one embodiment of the first aspect, the detection component includes a box body, and a plurality of mutually independent detection chambers are separated inside the box body. Each detection chamber corresponds to and communicates with the exhaust end of one of the gas collecting pipes, and each gas sensor is arranged in the corresponding detection chamber.

[0013] Through the above design, each detection chamber forms an independent detection space, realizing targeted detection of leakage points, which is convenient for users to check and maintain in a timely manner.

[0014] In one embodiment of the first aspect, an exhaust cavity and an exhaust port are further provided inside the box body. Each detection chamber is provided with an air outlet, and each air outlet communicates with the exhaust cavity. The exhaust port is located on one side of the exhaust cavity;

[0015] The gas leakage detection device further includes an air pump, and the air pump is connected to the exhaust port.

[0016] Through the above design, during exhaust, the gas in each detection chamber enters the exhaust cavity and is uniformly discharged from the exhaust port under the action of the air pump, simplifying the overall structure of the box body.

[0017] In one embodiment of the first aspect, the alarm component further includes a buzzer, and the buzzer is electrically connected to each gas sensor.

[0018] Through the above design, when the gas sensor detects gas leakage, the buzzer is controlled to be powered on and vibrates to send an alarm to the user, which is convenient for the user to respond quickly.

[0019] In one embodiment of the first aspect, the gas leakage detection device further includes a protection component, and the gas leakage detection device has two detection modes;

[0020] When the detected gas leakage concentration by each gas sensor is greater than the alarm value and less than the protection value, the alarm component issues a warning signal;

[0021] When the detected gas leakage concentration by each gas sensor is greater than the protection value, the protection component is used to cut off the gas supply and discharge the indoor air.

[0022] Through the above design, when the gas concentration reaches the protection value, the gas leakage is processed in a timely manner, avoiding the delay caused by the arrival of personnel and ensuring the safety of users.

[0023] In one embodiment of the first aspect, the protection component includes a control element and a solenoid valve. The solenoid valve is installed on the gas supply pipeline, and the control element is electrically connected to the gas sensor and the solenoid valve respectively;

[0024] When the detected leakage gas concentration of each of the gas sensors reaches the protection value, the control element controls the solenoid valve to block the gas supply pipeline.

[0025] With the above design, when the gas sensor detects that the gas concentration reaches the protection value, the control element controls the solenoid valve to block the gas supply pipeline, interrupt the gas supply, and prevent the continuous increase of the gas concentration.

[0026] In one embodiment of the first aspect, the protection assembly further includes an air pump, which is communicated with the detection assembly and discharges the leaked gas outdoors when the detected leakage gas concentration of the gas sensor reaches the protection value.

[0027] With the above design, the indoor air is discharged outdoors through the air pump, further reducing the indoor gas concentration and enhancing the safety guarantee.

[0028] In one embodiment of the first aspect, the gas collection assembly includes a plurality of gas collection pipes and a plurality of gas collection hoods. Each of the gas collection pipes is provided with a gas collection end and an exhaust end. Each of the gas collection ends is respectively connected to a corresponding one of the gas collection hoods. The gas collection hoods are respectively arranged above the corresponding gas leakage points along the gravity direction, and each of the exhaust ends is respectively connected to the detection assembly.

[0029] With the above design, by utilizing the upward buoyancy of the leaked gas, the gas is effectively guided through the gas collection pipes and gas collection hoods, improving the accuracy of detection.

[0030] In one embodiment of the first aspect, the gas collection hood has a horn-shaped structure, and the inner diameter of its upper end along the gravity direction is smaller than that of its lower end.

[0031] With the above design, it is convenient for the gas to float from below the gas collection hood into the gas collection pipe, facilitating gas collection.

[0032] In one embodiment of the first aspect, the gas collection end of the gas collection pipe is inclined downward along the gravity direction relative to the exhaust end.

[0033] With the above design, the gas collection pipe effectively guides the gas from the leakage point to the detection assembly, improving the accuracy of gas detection.

[0034] In one embodiment of the first aspect, the inclination angle of the gas collection pipe is α, and it satisfies: 0° < α ≤ 5°.

[0035] With the above design, while meeting the upward collection of the leaked gas, the layout space of the gas collection pipe in the gas stove is reduced.

[0036] In a second aspect, an embodiment of the present application further provides a gas stove, which includes a base, an ignition device, and the gas leakage detection device described in any of the above embodiments. A receiving cavity is provided in the base, and the ignition device and the gas leakage detection device are installed in the receiving cavity.

[0037] With the above design, the gas stove combines the alarm mode and the protection mode, which better ensures the safety of users on the basis of ensuring the user experience and improves the safety of using the gas stove.

[0038] In a third aspect, an embodiment of the present application further provides a gas leakage detection method, which is applied to the gas leakage detection device or the gas stove described in any of the above embodiments. The gas leakage detection method includes:

[0039] Each of the gas collecting pipes conveys the leaked gas corresponding to the gas leakage point to the detection assembly;

[0040] Each of the gas sensors respectively detects the gas concentration corresponding to the exhaust end;

[0041] When the concentration of the leaked gas is greater than the alarm value and less than the protection value, the alarm assembly emits a warning signal;

[0042] When the concentration of the leaked gas is greater than the protection value, the protection assembly cuts off the gas supply and discharges the indoor air.

[0043] Compared with the related art, the beneficial effects of the present application are as follows: The present application provides a gas leakage detection device, a gas stove, and a gas leakage detection method, which can be used for quickly locating a gas leakage point. The gas leakage detection device includes a gas collecting assembly, a detection assembly, and an alarm assembly. Among them, the gas collecting assembly is used to collect the gas at the gas leakage point, the detection assembly is connected to the gas collecting assembly and detects the gas concentration in the gas from the gas collecting assembly. The alarm assembly includes a plurality of warning members respectively electrically connected to the corresponding gas sensors. In this way, when each gas sensor detects that the gas concentration at the gas leakage point reaches the alarm value, a corresponding warning member is powered on and lit, which is convenient for the user to directly observe and repair the gas leakage point, and realizes the accurate positioning of the gas leakage point. Description of the Drawings

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0045] Figure 1 It is a schematic structural diagram of a gas leakage detection device in some embodiments of the present application;

[0046] Figure 2 Schematic diagram of the structure of the box body in some embodiments of the present application;

[0047] Figure 3 Schematic diagram of the position of the gas leakage point in some embodiments of the present application;

[0048] Figure 4 Schematic diagram of the structure of the gas collecting pipe in some embodiments of the present application;

[0049] Figure 5 Schematic diagram of the structure of the protection component in some embodiments of the present application;

[0050] Figure 6 Schematic diagram of the structure of the gas stove in some embodiments of the present application;

[0051] Figure 7 Schematic diagram of the process of the gas leakage detection method in some embodiments of the present application;

[0052] Figure 8 Schematic diagram of the control logic of the gas stove in some embodiments of the present application.

[0053] Explanation of reference numerals:

[0054] 1000, gas stove;

[0055] 100, gas leakage detection device; 110, gas collecting component; 111, gas collecting pipe; 1111, gas collecting end; 1112, exhaust end; 112, gas collecting hood; 120, detection component; 121, box body; 1211, detection chamber; 1212, exhaust cavity; 1213, exhaust port; 1214, air outlet; 122, gas sensor; 130, alarm component; 131, warning element; 132, buzzer; 140, protection component; 141, control element; 142, solenoid valve; 143, air pump;

[0056] 200, gas leakage point;

[0057] 300, base; 310, upper cover; 320, bottom box; 330, accommodation cavity;

[0058] 400, ignition device; 410, knob; 420, burner; 430, gas pipeline; 440, igniter; 500, fire supply device; 510, inner fire cover; 520, outer fire cover; 530, burner hole; 540, pot rack. Detailed implementation manners

[0059] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0060] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0061] In addition, if the term "and / or" appears, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after. If terms such as "first" and "second" appear, these terms are only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0062] In the present application, unless otherwise clearly specified and limited, if terms such as "install", "connect", "couple", "fix", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0063] In this application, unless otherwise clearly specified and defined, when a first feature is described as being "on" or "under" a second feature or the like, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0064] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If present, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0065] Referring to Figure 1 As shown, an embodiment of the present application provides a gas leakage detection device 100 for detecting the gas concentration at a gas leakage point 200, quickly locating the leakage point and processing it in time. For the sake of easy understanding, the gas leakage detection device 100 in the embodiment of the present application takes a gas stove 1000 as an application scenario for illustration.

[0066] Referring to together Figure 2 As shown, specifically, the gas leakage detection device 100 includes a gas collection assembly 110, a detection assembly 120 and an alarm assembly 130. Among them, the gas collection assembly 110 is used to guide and collect the air flow at the leakage point. After the air flow is guided by the gas collection assembly 110 to the detection assembly 120, the detection assembly 120 detects the gas concentration in the air flow. And when the detection assembly 120 determines that the gas concentration is higher than the set value, the alarm assembly issues a warning signal so that the operator can know.

[0067] It can be understood that the warning signal can be one or a combination of signal modes such as sound, light and electricity, as long as it can be known to the operator.

[0068] Exemplarily, the gas collection assembly 110 has a plurality of gas collection ends 1111, and each gas collection end 1111 correspondingly collects the air flow at a gas leakage point 200. Since the density of natural gas is smaller than the density of air, when gas leaks, natural gas floats upward. Therefore, in the embodiment of the present application, each gas collection end 1111 is respectively disposed above a corresponding gas leakage point 200 along the gravity direction, so that the leaked gas floats upward and is collected by the gas collection end 1111.

[0069] Continue to refer to Figure 3 As shown, it can be understood that gas leakage mostly occurs at pipe joints or valve connections, such as the connection between the main supply pipe and the branch pipe, the connection between the pipe and the burner 420, the part where the solenoid valve 142 is installed on the pipe, etc. The number of gas leakage points 200 can be one, two, three, four, five, etc., and can be specifically set according to the number of pipelines and the number of burner ports 530. The gas collection end 1111 is also correspondingly set to one, two, three, four, five, etc.

[0070] It should be noted that the gas leakage point 200 described in this application does not mean that a leakage accident will definitely occur at this part, but only indicates that the probability of leakage at this place is high. By presetting the gas collection end 1111 at the gas leakage point 200, the detection accuracy of gas leakage can be improved.

[0071] Furthermore, the detection component 120 includes a plurality of gas sensors 122. The gas sensors 122 are used to detect the gas concentration in the gas collected by the gas collection end 1111 to evaluate the gas leakage situation. And the number of gas sensors 122 corresponds to the gas collection end 1111 as one, two, three, four, five, etc., so as to satisfy the one-to-one correspondence setting between the gas sensors 122 and the gas collection end 1111. By respectively detecting the leakage conditions of different gas leakage points 200 through each gas sensor 122, it is convenient to find the leakage point.

[0072] Still further, the alarm component 130 includes a plurality of warning elements 131. The number of warning elements 131 corresponds to the gas sensors 122 as one, two, three, four, five, etc., and each warning element 131 is electrically connected to a corresponding gas sensor 122. In this way, when each gas sensor 122 detects that the leakage gas concentration of the corresponding gas leakage point 200 reaches the alarm value, a corresponding warning element 131 is energized and lit, so that the operator can visually observe that gas leakage has occurred, and quickly find the leakage point according to the corresponding warning element 131 for timely maintenance.

[0073] Exemplarily, the warning element 131 is an indicator light, which lights up in the energized state. In this application, by collecting the gas leakage at different parts respectively, comparing the gas concentrations at different parts, and using the warning element 131 to mark the approximate position of the leaked gas, it is convenient for the user to quickly locate the air leakage point and deal with the gas leakage faster.

[0074] Continue to refer to Figure 4As shown, in some embodiments, the gas collecting assembly 110 includes a plurality of gas collecting pipes 111 and a plurality of gas collecting hoods 112 to collect the airflows at each leakage point respectively. Each gas collecting pipe 111 is provided with a gas collecting end 1111 and an exhaust end 1112, and each gas collecting end 1111 is connected to a corresponding gas collecting hood 112. The gas collecting hoods 112 are respectively arranged above a corresponding gas leakage point 200 along the gravity direction, and each exhaust end 1112 is connected to the detection assembly 120 respectively.

[0075] Specifically, the gas collecting hood 112 has a conical cylinder structure, and its lower end size is larger than its upper end size, so that the leaked gas can rise due to its own buoyancy and enter the gas collecting pipe 111 under the guidance of the gas collecting hood 112. One end of each gas collecting pipe 111 away from the gas collecting hood 112 is close to the gas sensor 122 to guide the airflow at the leakage point to a corresponding gas sensor 122 for detection.

[0076] In some embodiments, the gas collecting end 1111 of the gas collecting pipe 111 is inclined downward along the gravity direction relative to the exhaust end 1112. Since the gas collecting end 1111 of each gas collecting pipe 111 is lower than its own exhaust end 1112, when collecting the leaked gas, by using the characteristic that the density of the gas is smaller than that of air, the conical structure of the gas collecting hood 112 is used to collect the leaked gas above the gas leakage prone point. At the same time, the gas collecting pipes 111 with a certain inclination angle are used for guiding to collect the gas from different leakage points into the detection assembly 120. The gas leakage detection device 100 provided by the present application collects gas more quickly and collects more leaked gas, effectively improving the accuracy of gas detection.

[0077] In some embodiments, the inclination angle of the gas collecting pipe 111 is α and satisfies: 0° < α ≤ 5°.

[0078] Exemplarily, the inclination angle α of the gas collecting pipe 111 can be understood as the included angle between the extending direction of the gas collecting pipe 111 itself and the horizontal direction. α can be 0.5°, 0.8°, 1°, 1.2°, 1.5°, 1.8°, 2°, 2.4°, 2.8°, 3.2°, 4°, 4.5°, 5°, etc., and can be reasonably selected according to actual needs. In the embodiments of the present application, by limiting the inclination angle of the gas collecting pipe 111, while meeting the requirement of floating collection of the leaked gas, the height of the gas collecting pipe 111 is restricted, thereby reducing the layout space of the gas collecting pipe 111 in the gas stove 1000 and improving the integration degree of the gas stove 1000.

[0079] Refer to again Figure 2 As shown, in some embodiments, the detection assembly 120 further includes a box body 121, and a plurality of detection chambers 1211 are separately arranged in the box body 121. Each detection chamber 1211 is respectively connected to a corresponding gas collecting end 1111, and each gas sensor 122 is respectively arranged in a corresponding detection chamber 1211.

[0080] Exemplarily, the interior of the box body 121 is partitioned by a partition to form a plurality of detection chambers 1211, and a gas sensor 122 is correspondingly installed in each detection chamber 1211. The airflow at the leakage point converges in the detection chamber 1211 under the guidance of the gas collecting pipe 111. Thus, when the airflow carries leaked gas, it is detected by the gas sensor 122 in a certain detection chamber 1211, and the corresponding warning member 131 is energized and illuminated.

[0081] Preferably, the detection chambers 1211 are horizontally arranged in sequence and have the same distribution order as the gas leakage points 200, and the warning members 131 are also arranged in a straight line in sequence, so as to quickly obtain the position of the leakage point.

[0082] In some embodiments, the alarm assembly 130 further includes a buzzer 132, and the buzzer 132 is electrically connected to each gas sensor 122.

[0083] Specifically, when the buzzer 132 is in the energized state, it can emit a vibration. In this way, when the gas sensor 122 detects gas leakage, the buzzer 132 is controlled to be energized and vibrate to issue an alarm to the user, facilitating the user's quick response.

[0084] Continue to refer to Figure 5 As shown, in some embodiments, the gas leakage detection device 100 further includes a protection assembly 140. When the gas concentration detected by each gas sensor 122 reaches the protection value, the protection assembly 140 is used to cut off the gas supply. Through the setting of the protection assembly 140, when the gas concentration reaches the protection value, the gas leakage is processed in time to avoid the delay caused by the arrival of personnel and ensure the safety of users. It can be understood that the protection value is greater than the alarm value. When the gas concentration reaches the protection value, it will seriously threaten the safety of users and easily lead to accidents such as fires. Therefore, by quickly cutting off the gas supply through the protection assembly 140, the continuous generation of open flames by the gas stove 1000 is avoided, and the safety is improved.

[0085] Furthermore, the protection assembly 140 includes a control element 141 and a solenoid valve 142. The solenoid valve 142 is installed on the gas supply pipeline, and the control element 141 is electrically connected to the gas sensor 122 and the solenoid valve 142 respectively. When the gas concentration detected by each gas sensor 122 reaches the protection value, the control element 141 controls the solenoid valve 142 to block the gas supply pipeline.

[0086] Specifically, a central processor is provided inside the control component 141, and the detection signal of the gas sensor 122 is received through the central processor, and then a corresponding control instruction is sent to the solenoid valve 142. The solenoid valve 142 can be opened and closed under the control of the control component 141. Thus, when the gas sensor 122 detects that the gas concentration reaches the protection value, the control component 141 controls the solenoid valve 142 to block the gas supply pipeline, interrupt the gas supply, and avoid the continuous rise of the gas concentration.

[0087] Furthermore, the protection assembly 140 further includes an air pump 143. The air pump 143 is communicated with the detection assembly 120, and when the gas sensor 122 detects that the leakage gas concentration reaches the protection value, the leakage gas is discharged outdoors.

[0088] Specifically, when the gas sensor 122 detects that the leakage gas concentration reaches the protection value, while the control component 141 controls the solenoid valve 142 to block the gas supply pipeline, the air pump 143 is turned on to discharge the indoor air outdoors, further reducing the indoor gas concentration and enhancing the safety guarantee.

[0089] Refer to again Figure 2 As shown, furthermore, an exhaust cavity 1212 and an exhaust port 1213 are further provided inside the box body 121, and each detection chamber 1211 is provided with an air outlet 1214. Each air outlet 1214 is communicated with the exhaust cavity 1212. The exhaust port 1213 is located on one side of the exhaust cavity 1212, and the air pump 143 is connected to the exhaust port 1213.

[0090] Specifically, the exhaust cavity 1212 is simultaneously communicated with each detection chamber 1211, so that separate gas detection can be carried out in each detection chamber 1211. When exhausting, the gas in each detection chamber 1211 enters the exhaust cavity 1212 and is uniformly discharged from the exhaust port 1213 under the action of the air pump 143, streamlining the overall structure of the box body 121.

[0091] Preferably, two chambers are separately partitioned inside the box body 121 for installing the control component 141, the buzzer 132 and the warning component 131 respectively. Among them, the control component 141 is separately arranged on one side of the box body 121, and the buzzer and the warning component 131 are oppositely installed on the other side of the box body 121.

[0092] In summary, the gas leakage detection device 100 provided by the present application combines an alarm mode and a protection mode. Through the cooperation of the two modes, the alarm mode is selected when the gas leakage is small, and the protection mode is selected when the gas leakage is large. On the basis of ensuring the user experience, the safety of the user is better guaranteed, and the safety of using the gas stove 1000 is improved.

[0093] Refer to Figure 6As shown in the figure, an embodiment of the present application further provides a gas stove 1000, which includes a base 300, an ignition device 400, a fire supply device 500, and the gas leakage detection device 100 in any of the above embodiments. A receiving cavity 330 is provided in the base 300, and the ignition device 400 and the gas leakage detection device 100 are installed in the receiving cavity 330.

[0094] Specifically, the base 300 includes an upper cover 310 and a bottom box 320. The upper cover 310 and the bottom box 320 are assembled and cooperated to define a receiving cavity 330 inside, and the gas leakage detection device 100 is disposed in the receiving cavity 330 so as not to be exposed outside the gas stove 1000, improving the aesthetic appearance of the gas stove 1000.

[0095] The ignition device 400 includes a knob 410, a burner 420, a gas pipeline 430, and an igniter 440. Among them, the burner 420, the gas pipeline 430, and the igniter 440 are all installed in the receiving cavity 330. The knob 410 is disposed on one side of the base 300, and the igniter 440 is controlled by the knob 410 to perform gas ignition.

[0096] The fire supply device 500 includes an inner fire cover 510, an outer fire cover 520, a burner hole 530, and a pot support 540. The upper cover 310 is provided with a through hole for cooking fire supply. The burner hole 530 is installed at the through hole of the upper cover 310. The inner fire cover 510 and the outer fire cover 520 are respectively placed on the burner hole 530, and the inner fire cover 510 is disposed at the center of the outer fire cover 520. The pot support 540 is placed on the periphery of the burner hole 530 for supporting cooking utensils.

[0097] Continue to refer to Figure 7 and Figure 8 As shown in the figure, an embodiment of the present application further provides a gas leakage detection method. The gas leakage detection method includes:

[0098] S10, each gas collecting pipe 111 conveys the leaked gas at the corresponding gas leakage point 200 to the detection assembly 120.

[0099] Specifically, during the normal combustion operation of the gas stove 1000, the gas collecting assembly 110 continuously guides the airflow at the gas leakage point 200 and finally reaches the detection chamber 1211. The gas concentration is detected by the gas sensor 122 in the detection chamber 1211, and then the gas leakage condition of the gas stove 1000 is judged.

[0100] S20, each gas sensor 122 respectively detects the gas concentration at the corresponding exhaust end 1112.

[0101] S30, when the concentration of the leaked gas is greater than the alarm value and less than the protection value, the alarm assembly 130 issues a warning signal.

[0102] Specifically, when the gas sensor 122 detects that the gas concentration is higher than the alarm value and lower than the protection value, the buzzer 132 is activated to emit a shock sound to attract the user's attention. At the same time, the warning component 131 is powered on and illuminated, and the leakage point of the gas leakage is judged by the position of the illuminated warning component 131, which is convenient for the user's precise maintenance.

[0103] S40. When the concentration of the leaked gas is greater than the protection value, the protection component 140 cuts off the gas supply and discharges the indoor air.

[0104] Specifically, when the gas sensor 122 detects that the gas concentration is higher than the protection value, the control element 141 controls the operation of the air pump 143 and the solenoid valve 142. The solenoid valve 142 blocks the gas supply pipeline to avoid continuous gas leakage. At the same time, the air pump 143 discharges the indoor air outdoors to reduce the indoor gas concentration and effectively ensure the safety of the user. The gas stove 1000 ends the protection mode until the gas concentration is within the safe preset value.

[0105] This embodiment has the gas leakage detection device 100 in any of the above embodiments. Therefore, it has all the beneficial effects of the gas leakage detection device 100 in any of the above embodiments, and will not be elaborated here one by one.

[0106] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0107] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A gas leak detection device, characterized in that: The gas leakage detection device is integrated in the gas stove and is used to detect the concentration of leaked gas in the gas stove. The gas stove has multiple gas leakage points. The gas leakage detection device includes: A gas collecting assembly, comprising a plurality of gas collecting pipes, each of which is provided with a gas collecting end and an exhaust end, the gas collecting end of each gas collecting pipe being arranged above a corresponding gas leakage point along the direction of gravity, and the gas collecting end being inclined downward relative to the exhaust end along the direction of gravity; A detection assembly, comprising a plurality of gas sensors, each of which is disposed in one-to-one correspondence with the exhaust end of each of the gas collecting pipes and is used to detect the gas concentration at the corresponding exhaust end; and An alarm assembly, comprising a plurality of alarm members, each of which is electrically connected to a corresponding gas sensor; The warning element is an indicator light. When one or more of the gas sensors detect that the concentration of the leaked gas reaches an alarm value, the corresponding warning element is powered on and lights up to mark the approximate location of the leaked gas.

2. The gas leak detection device according to claim 1, characterized in that: The detection assembly includes a box body, the interior of the box body is divided into a plurality of independent detection chambers, each of the detection chambers is correspondingly connected to the exhaust end of a gas collecting pipe, and each of the gas sensors is arranged in the corresponding detection chamber.

3. The gas leak detection device according to claim 2, characterized in that: The box body is also provided with an exhaust cavity and an exhaust port, each of the detection chambers is provided with an exhaust port, each of the exhaust ports is communicated with the exhaust cavity, and the exhaust port is located on one side of the exhaust cavity; The gas leakage detection device also includes an air pump, which is connected to the exhaust port.

4. The gas leak detection device according to claim 1, characterized in that: The alarm component also includes a buzzer, which is electrically connected to each of the gas sensors.

5. The gas leak detection device according to claim 1, characterized in that: The gas leak detection device further comprises a protection component, and the gas leak detection device has two detection modes; When the concentration of leaked gas detected by each gas sensor is greater than the alarm value and less than the protection value, the alarm component sends out a warning signal; When the gas sensors detect that the concentration of leaked gas is greater than the protection value, the protection component is used to cut off the gas supply and discharge the indoor air.

6. The gas leak detection device according to claim 5, characterized in that: The protection assembly includes a control element and a solenoid valve, the solenoid valve is installed on the gas supply pipeline, and the control element is electrically connected to the gas sensor and the solenoid valve respectively; When the gas sensors detect that the concentration of leaked gas reaches a protection value, the control element controls the solenoid valve to block the gas supply pipeline.

7. The gas leak detection device according to claim 6, characterized in that: The protection component also includes an air pump, which is connected to the detection component and discharges the leaked gas outdoors when the gas sensor detects that the concentration of the leaked gas reaches a protection value.

8. The gas leak detection device according to claim 1, characterized in that: The gas collecting component also includes a plurality of gas collecting hoods, each of the gas collecting ends is respectively connected to a corresponding one of the gas collecting hoods, the gas collecting hoods are respectively arranged above a corresponding one of the gas leakage points along the direction of gravity, and each of the exhaust ends is respectively connected to the detection component.

9. The gas leak detection device according to claim 8, characterized in that: The gas collecting hood is a trumpet-shaped structure, and the inner diameter of the upper end along the gravity direction is smaller than the inner diameter of the lower end.

10. The gas leak detection device according to claim 1, characterized in that: The inclination angle of the gas collecting pipe is α, and satisfies: 0°<α≤5°.

11. A gas stove, characterized in that: It comprises a base, an ignition device and the gas leakage detection device according to any one of claims 1 to 9, wherein a receiving cavity is provided in the base, and the ignition device and the gas leakage detection device are installed in the receiving cavity.

12. A gas leak detection method, characterized in that: Applicable to the gas leak detection device according to any one of claims 1 to 10 or the gas stove according to claim 11, the gas leak detection method comprises: Each of the gas collecting pipes transports the leaked gas corresponding to the gas leakage point to the detection component; Each of the gas sensors detects the gas concentration at the corresponding exhaust end respectively; When the concentration of leaked gas is greater than the alarm value and less than the protection value, the alarm component sends out a warning signal; When the leaked gas concentration is greater than the protection value, the protection component cuts off the gas supply and discharges the indoor air.

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