Combustor, gas stove and integrated electric appliance

Abstract

The utility model discloses a burner, a gas stove and an integrated electric appliance, the burner comprises a first fire hole, a second fire hole and a third fire hole, the first fire hole is suitable for spraying out gas and blast air, the second fire hole is suitable for spraying out gas and injection air, and the second fire hole is close to the center of the burner relative to the first fire hole; and the third fire hole is suitable for spraying out gas and blast air, and is close to the center of the burner relative to the second fire hole. The first fire hole and the third fire hole are used for blowing air and fuel gas to be sprayed out respectively, so that the fuel gas sprayed out of the first fire hole and the fuel gas sprayed out of the third fire hole can be fully combusted, and the second fire hole is formed between the first fire hole and the third fire hole. And redundant oxygen in the gas sprayed out of the first fire hole and the third fire hole is supplemented into the gas sprayed out of the second fire hole from the two sides of the second fire hole, so that the oxygen supplementing efficiency is higher, the gas sprayed out of the second fire hole is fully combusted, and the improvement of the heat efficiency of the gas stove is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of gas stoves, and in particular to a burner, a gas stove and an integrated electrical appliance. Background Art

[0002] The combustion of the gas stove burner requires the participation of primary air and secondary air. Generally speaking, the primary air is mixed with the gas through natural induction, but the amount of primary air is affected by the structure and working conditions, and the supplement of secondary air relies on buoyancy and suction, which has high requirements on the size of components. Therefore, the thermal efficiency of the gas stove needs to be improved. Utility Model Content

[0003] The present application aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present application proposes a burner.

[0004] To achieve the above object, the present application discloses a burner, which comprises:

[0005] The first burner is suitable for the fuel gas and blast air to be ejected;

[0006] a second burner, adapted to eject fuel gas and induced air, and the second burner is closer to the center of the burner than the first burner; and

[0007] The third burner is suitable for spraying fuel gas and blast air, and the third burner is closer to the center of the burner than the second burner.

[0008] In some embodiments of the present application, the flame generated by the second burner is suitable for stabilizing the flame of the first burner and / or the second burner.

[0009] In some embodiments of the present application, the burner includes an annular wall surrounding the center of the burner, the annular wall gradually expands from bottom to top and encloses a first space, and the first flame port and the second flame port are arranged on the annular wall.

[0010] In some embodiments of the present application, the first burner port is higher than the second burner port, and the minimum distance between the first burner port and the second burner port along the axial direction of the burner is no more than 15 mm, and the minimum distance between the first burner port and the second burner port along the radial direction of the burner is no more than 10 mm.

[0011] In some embodiments of the present application, the third fire port is disposed in the first space and is lower than a top edge of the first space.

[0012] In some embodiments of the present application, the first burner and the third burner are connected to the same blast air source, and the sum of the air outlet areas of the first burner is greater than the sum of the air outlet areas of the third burner.

[0013] In some embodiments of the present application, the burner includes a plurality of the first burners, and the plurality of the first burners are alternately arranged in a ring shape and surround the second burner;

[0014] And / or, the burner comprises a plurality of the second burners, the plurality of the second burners are arranged alternately in a ring shape and surround the third burner;

[0015] And / or, the burner includes a plurality of the third burners.

[0016] In some embodiments of the present application, the first burner is in the shape of an annular seam and surrounds the second burner;

[0017] and / or, the second burner is in the shape of an annular seam and surrounds the third burner;

[0018] And / or, the third burner is in the shape of an annular seam.

[0019] In some embodiments of the present application, the burner includes a burner head and a fire cover arranged on the burner head, the burner head is provided with a first cavity, a second cavity and a third cavity, the fire cover is provided with the first fire port, the second fire port and the third fire port, the first fire port is connected to the first cavity, the second fire port is connected to the second cavity, and the third fire port is connected to the third cavity.

[0020] In some embodiments of the present application, the first cavity is communicated with the third cavity, and the burner includes a first ejector tube and a second ejector tube, the first ejector tube is connected to the burner head and communicated with the first cavity or the third cavity, the second ejector tube is connected to the burner head and communicated with the second cavity, an air inlet end of the first ejector tube is suitable for receiving fuel gas and blast air, and an air inlet end of the second ejector tube is suitable for receiving fuel gas and ejection air.

[0021] In some embodiments of the present application, the burner includes a fan, which is suitable for providing blast air, and the fan is fixedly connected to the first ejector pipe.

[0022] A second aspect of the present application discloses a gas stove, which comprises the burner mentioned above.

[0023] In some embodiments of the present application, the gas stove includes a valve body, which is suitable for adjusting the amount of gas. When the valve body interrupts the gas supply to the first burner and the third burner, the valve body is suitable for maintaining the gas supply to the second burner, and the fan of the gas stove is in working state to provide blowing air.

[0024] A third aspect of the present application discloses an integrated appliance, which includes the above-mentioned gas stove.

[0025] The technical solution of the present application is to set a first burner, a second burner and a third burner. The first burner and the third burner are respectively used for blast air and gas spraying, so that the gas sprayed from the first burner and the gas sprayed from the third burner can be fully burned. The second burner is used for induced air and gas spraying. Since the second burner is set between the first burner and the third burner, excess oxygen in the gas sprayed from the first burner and the third burner is supplemented to the gas sprayed from the second burner from both sides of the second burner, so the oxygen supplement efficiency is higher, so that the gas sprayed from the second burner can be fully burned. Through the improvement of the above scheme, it is beneficial to improve the thermal efficiency of the gas stove.

[0026] Other advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other designs can be obtained based on the structures shown in these drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of a burner in some embodiments;

[0029] Figure 2 for Figure 1 The enlarged view marked as A in FIG.

[0030] Figure 3 Schematic diagram of burner in some embodiments (viewing angle and Figure 1 different);

[0031] Figure 4 for Figure 3 The enlarged view marked as B in the figure;

[0032] Figure 5 A cross-sectional view of a burner in some embodiments;

[0033] Figure 6 A cross-sectional view of a burner in some embodiments (cross section and Figure 5 different);

[0034] Figure 7 A cross-sectional view of a burner in some embodiments (cross section and Figure 5 Different perspectives and Figure 6 different);

[0035] Figure 8 for Figure 7The enlarged image marked as C in the figure;

[0036] Fig. 9 Schematic diagram of a burner in some embodiments (the first burner is in the shape of an annular gap);

[0037] Fig.10 for Fig. 9 The enlarged image marked with D in the figure.

[0038] Description of Figure Numbers:

[0039] Burner 100, fire cover 1000, first fire cover 1110, second fire cover 1120, third fire cover 1130, first fire port 1210, second fire port 1220, third fire port 1230, annular wall 1300, first space 1310, burner head 2000, first cavity 2110, second cavity 2120, third cavity 2130, first ejector tube 3100, air inlet end 3110 of first ejector tube, second ejector tube 3200, air inlet end 3210 of second ejector tube, and fan 4000.

[0040] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] In the related art, the gas stove includes a valve body. After the valve body is opened, the gas of bottled liquefied gas or pipeline natural gas is transmitted along the pipeline, and the gas passes through the valve body and is sprayed out through the nozzle. The gas sprayed from the nozzle is sprayed into the interior of the burner. In the process of gas spraying into the interior of the burner, air is simultaneously introduced. For the introduction of air, please refer to the related art. It is generally based on the Venturi principle. In the process of gas spraying into the interior of the burner, a negative pressure is formed on the surrounding environment, so that the air of the surrounding environment is synchronously introduced into the interior of the burner with the injection of gas (this part of the air entering the interior of the burner through the introduction effect is called introduction air, and the introduction air is primary air). The introduction air is mixed with the gas in the interior of the burner and then sprayed out from the interior of the burner, and then ignited to form a flame. In the process of gas combustion, through buoyancy and suction, the surrounding environment will supplement air to the flame (this air is called secondary air), thereby assisting the combustion of the gas. It can be seen that the amount of primary air and the amount of secondary air are the core factors to ensure the complete combustion of the ejected gas, but the amount of primary air is affected by the structure and working conditions, and the supplement of secondary air relies on buoyancy and suction, which is a passive supplement and has high requirements on the size of components. Therefore, the gas is mostly in a state of low oxygen combustion when it is burned only by induced air and suction of air from the surrounding environment, and the combustion is incomplete. To address this problem, the present application improves the burner to at least improve the combustion degree of the gas to a certain extent, thereby helping to improve the thermal efficiency of the gas stove.

[0046] The first aspect of the present application discloses a burner 100, Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8As shown, in some embodiments, the burner 100 includes a first burner 1210, a second burner 1220 and a third burner 1230, wherein the first burner 1210 is used for supplying blast air and gas spraying, the second burner 1220 is used for supplying induced air and gas spraying, the third burner 1230 is used for supplying blast air and gas spraying, and the second burner 1220 is close to the center of the burner 100 relative to the first burner 1210, and the third burner 1230 is close to the center of the burner 100 relative to the second burner 1220.

[0047] By setting the first burner 1210, the second burner 1220 and the third burner 1230, the first burner 1210 and the third burner 1230 are respectively used for blast air and gas spraying, so that the gas sprayed from the first burner 1210 and the gas sprayed from the third burner 1230 can be fully burned, and the second burner 1220 is used for induced air and gas spraying. Since the second burner 1220 is set between the first burner 1210 and the third burner 1230, the excess oxygen in the gas sprayed from the first burner 1210 and the third burner 1230 is supplemented from both sides of the second burner 1220 to the gas sprayed from the second burner 1220, and the oxygen supplement efficiency is higher, so that the gas sprayed from the second burner 1220 can be fully burned. The improvement of the above scheme is beneficial to the improvement of the thermal efficiency of the gas stove.

[0048] Specifically, the second burner 1220 is used for ejecting induced air and gas, that is, the induced air and gas enter the interior of the burner 100, and then eject from the interior of the burner 100 through the second burner 1220, and are ignited to form a flame. Similar to the above description, the supply of gas can come from bottled liquefied gas or pipeline natural gas. The gas stove includes a valve body. After the valve body is opened, the gas is transmitted along the gas pipeline, the gas flows through the valve body and is ejected through the nozzle. The gas ejected from the nozzle is ejected into the interior of the burner 100. In the process of the gas being ejected into the interior of the burner 100, the air is ejected synchronously, so that the induced air follows the gas into the interior of the burner 100, and then the induced air and gas are ejected from the second burner 1220.

[0049] The first burner 1210 is used for supplying blast air and gas to be ejected, and the third burner 1230 is also used for supplying blast air and gas to be ejected. Blast air and gas enter the interior of the burner 100, and then eject from the interior of the burner 100 through the first burner 1210 and the third burner 1230, and are ignited to form a flame. Similar to the above description, the supply of gas can come from bottled liquefied gas or pipeline natural gas. The gas stove includes a valve body. After the valve body is opened, the gas is transmitted along the gas pipeline, the gas flows through the valve body and is ejected through the nozzle. The gas ejected from the nozzle is ejected into the interior of the burner 100. In this process, blast air is provided. The blast air is generated by a fluid machine, for example, by forced blasting of the fan 4000 to provide blast air. The blast air enters the interior of the burner 100 and mixes with the gas (the blast air is primary air), and then ejects from the first burner 1210 and the third burner 1230 with the gas. Compared with the induced air, the blast air can provide more oxygen, so that the gas ejected from the first burner 1210 and the third burner 1230 can be in an oxygen-rich combustion state, thereby enabling the gas ejected from the first burner 1210 and the third burner 1230 to be fully burned (the flames generated by the first burner 1210 and the third burner 1230 can still draw in secondary air from the surrounding environment to participate in the combustion).

[0050] The gas ejected from the second burner 1220 cannot be fully burned if it only relies on the induced air and the surrounding air. Since the first burner 1210 and the third burner 1230 eject blast air, the blast air ejected from the first burner 1210 can provide enough oxygen, so that the blast air ejected from the first burner 1210 not only participates in the combustion of the gas ejected from the first burner 1210, but also the excess oxygen can be added to the gas ejected from the second burner 1220 to assist the combustion of the gas ejected from the second burner 1220. Similarly, the blast air ejected from the third burner 1230 can also provide enough oxygen, so that the third burner 123 In addition to participating in the combustion of the fuel gas ejected from the third burner 1230, the blast air ejected from the first burner 1210 and the blast air ejected from the third burner 1230 can also supplement the excess oxygen into the gas ejected from the second burner 1220 to assist in the combustion of the fuel gas ejected from the second burner 1220. Compared with supplementing secondary air from the surrounding environment by suction, the excess oxygen provided by the blast air ejected from the first burner 1210 and the excess oxygen provided by the blast air ejected from the third burner 1230 are more actively supplemented into the gas ejected from the second burner 1220, so that the fuel gas ejected from the second burner 1220 can be fully burned (the flame generated by the second burner 1220 can still suck the secondary air from the surrounding environment to participate in the combustion).

[0051] The second burner 1220 is closer to the center of the burner 100 than the first burner 1210, and the third burner 1230 is closer to the center of the burner 100 than the second burner 1220. The center of the burner 100 refers to the center of the ignition range of the burner 100, that is, when observing the burner 100 from top to bottom, the first burner 1210 is closer to the outside than the second burner 1220 and the third burner 1230, and the third burner 1230 is closer to the inside than the first burner 1210 and the second burner 1220. The second burner 1220 is between the first burner 1210 and the third burner 1230, so that the third burner 1230 , the second burner 1220 and the first burner 1210 are arranged in sequence in the direction away from the center of the burner (the minimum distance between the first burner 1210 and the center of the burner 100 is greater than the minimum distance between the second burner 1220 and the center of the burner 100, and the minimum distance between the second burner 1220 and the center of the burner 100 is greater than the minimum distance between the third burner 1230 and the center of the burner 100). In some cases, the third burner 1230 is closer to the center of the burner 100 relative to the second burner 1220. At this time, the third burner 1230 can be just in the center of the burner 100, which is more conducive to the uniform distribution of temperature. It can be seen that the excess oxygen provided by the blast air ejected from the first burner 1210 and the excess oxygen provided by the blast air ejected from the third burner 1230 are supplemented to the gas ejected from the second burner 1220 from the opposite sides of the second burner 1220, and the oxygen supplement efficiency is higher.

[0052] Through the above solution, the gas ejected from the first burner 1210, the second burner 1220 and the third burner 1230 is fully burned, with high combustion efficiency, which is beneficial to improving the thermal efficiency of the gas stove. It can be understood that the full combustion mentioned herein is relative to the combustion state of only injecting air and entraining air from the surrounding environment (i.e., relatively more full).

[0053] In some embodiments, the flame generated by the second burner 1220 is suitable for stabilizing the flame of the first burner 1210. Specifically, the first burner 1210 ejects blast air and gas. The inventors have found that although the blast air can achieve full combustion of the gas, the blast air causes the gas flow rate ejected from the first burner 1210 to be relatively large, and the speed at which the gas leaves the first burner 1210 is greater than the combustion speed of the gas, which easily causes the flame separation phenomenon. Since the second burner 1220 ejects induced air and gas, the induced air is naturally induced by spraying the gas through a nozzle, and does not need to be generated based on fluid machinery. The speed at which the gas leaves the second burner 1220 is not much different from the combustion speed of the gas, and stable combustion can be achieved, that is, the flame state formed by the second burner 1220 is stable. Since the flame formed by the second burner 1220 is more stable, the flame generated by the second burner 1220 can be used to stabilize the flame of the first burner 1210.

[0054] That is to say, in addition to heating the cookware, the flame formed by the second burner 1220 also serves as a flame stabilizing hole / flame stabilizing groove. In summary, since the second burner 1220 is used to inject air and gas, the gas ejected from the second burner 1220 has a more stable combustion state. By adjusting the position, angle or distance of the second burner 1220 and the first burner 1210, the flame formed by the second burner 1220 ignites the gas ejected from the first burner 1210 (such as the flame formed by the second burner 1220 heats the root of the gas ejected from the first burner 1210 and thus ignites the gas ejected from the first burner 1210). When the gas quickly leaves the first burner 1210, it is ignited by the flame formed by the second burner 1220. In this way, the gas that quickly leaves the first burner 1210 burns at the first burner 1210, thereby suppressing the occurrence of flame separation in the first burner 1210, stabilizing the flame for the first burner 1210, and further improving the combustion efficiency.

[0055] In some embodiments, the flame generated by the second burner 1220 is suitable for stabilizing the flame of the third burner 1230. Specifically, the third burner 1230 ejects blast air and gas. Although the blast air can achieve full combustion of the gas, the blast air causes the gas flow rate ejected from the third burner 1230 to be relatively large, and the speed at which the gas leaves the third burner 1230 is greater than the combustion speed of the gas, which easily causes the flame separation phenomenon. Since the second burner 1220 ejects induced air and gas, the induced air is naturally induced by spraying the gas through a nozzle, and does not need to be generated based on fluid machinery. The speed at which the gas leaves the second burner 1220 is not much different from the combustion speed of the gas, and stable combustion can be achieved, that is, the flame state formed by the second burner 1220 is stable. Since the flame formed by the second burner 1220 is more stable, the flame generated by the second burner 1220 can be used to stabilize the flame of the third burner 1230.

[0056] That is to say, in addition to heating the cookware, the flame formed by the second burner 1220 also serves as a flame stabilizing hole / flame stabilizing groove. In summary, since the second burner 1220 is used to inject air and gas, the gas ejected from the second burner 1220 has a more stable combustion state. By adjusting the position, angle or distance of the second burner 1220 and the third burner 1230, the flame formed by the second burner 1220 ignites the gas ejected from the third burner 1230 (the flame formed by the second burner 1220 heats the root of the gas ejected from the third burner 1230 and thus ignites the gas ejected from the third burner 1230). When the gas quickly leaves the third burner 1230, it is ignited by the flame formed by the second burner 1220. In this way, the gas quickly leaving the third burner 1230 burns at the third burner 1230, thereby suppressing the occurrence of flame separation from the third burner 1230 and stabilizing the flame of the third burner 1230.

[0057] It is understandable that the flame generated by the second burner 1220 can stabilize the flames of the first burner 1210 and the second burner 1220 at the same time, that is, the flame formed by the second burner 1220 ignites the gas ejected from the first burner 1210 and the gas ejected from the third burner 1230 .

[0058] Combination Figure 7 and Figure 8 As shown, in some embodiments, the burner 100 includes an annular wall 1300, which surrounds the center of the burner 100. The annular wall 1300 is gradually expanded from bottom to top and surrounds a first space 1310. The first flame port 1210 is arranged on the annular wall 1300, and the second flame port 1220 is also arranged on the annular wall 1300.

[0059] Specifically, the annular wall 1300 is surrounded by a first space 1310, and the first burner 1210 and the second burner 1220 are arranged on the annular wall 1300, so the first burner 1210 is connected to the first space 1310, and the second burner 1220 is connected to the first space 1310. The heat generated by the combustion of the gas ejected from the first burner 1210 and the gas ejected from the second burner 1220 will be gathered in the first space 1310, avoiding the excessive loss of heat, which is conducive to improving the heating effect of the cooker, and the high temperature accumulation is conducive to the conversion of carbon monoxide, further improving the combustion efficiency. Since the annular wall 1300 is gradually expanded from bottom to top, the enclosed first space 1310 is gradually expanded from bottom to top, which can increase the range of the first space 1310, so that the heat is radiated upward (toward the cooker), further improving the heating effect of the cooker.

[0060] The ring in the annular wall 1300 is also called an annular shape, which can be a circular ring or a non-circular ring (such as a square ring), which is not limited in this embodiment. Since the first burner 1210 is far away from the center of the burner 100 relative to the second burner 1220, and the annular wall 1300 is gradually expanded from bottom to top, the first burner 1210 is located at a higher position on the annular wall 1300, and the second burner 1220 is located at a lower position. The flame formed by the second burner 1220 will be generated upward. When the first burner 1210 is located at a higher position relative to the second burner 1220, the flame of the second burner 1220 is more likely to contact the gas ejected from the first burner 1210 and ignite, further suppressing the occurrence of the flame separation phenomenon of the first burner 1210.

[0061] Combination Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, in some embodiments, the first burner 1210 is higher than the second burner 1220, and along the axial direction of the burner 100, the minimum distance between the second burner 1220 and the first burner 1210 is no more than 15 mm, and along the radial direction of the burner 100, the minimum distance between the second burner 1220 and the first burner 1210 is no more than 10 mm.

[0062] Specifically, the first flame port 1210 is higher than the second flame port 1220, that is, the lowest point of the first flame port 1210 is higher than the highest point of the second flame port 1220. Taking the gas stove as a reference when it is installed in the use environment, the gas stove is roughly in a horizontal installation state. The axial direction of the burner 100 is the up and down direction, and the radial direction is the direction passing through the center of the burner 100 and perpendicular to the axial direction. In this embodiment, along the axial direction of the burner 100, the minimum distance between the second burner 1220 and the first burner 1210 is L1, and L1 is not greater than 15 mm, for example, L1 is 15 mm, 12 mm, 9 mm, 5 mm, 2 mm or 1 mm. Along the radial direction of the burner 100, the minimum distance between the second burner 1220 and the first burner 1210 is L2, and L2 is not greater than 10 mm, for example, L2 is 10 mm, 8 mm, 6 mm, 4 mm, 2 mm or 1 mm. After a large number of experiments by the inventor, when L1 and L2 meet the above conditions, the second burner 1220 has a better flame stabilizing effect on the first burner 1210, reduces the influence of the shape and size of the second burner 1220 and the first burner 1210, and meets more styling designs of the burner 100.

[0063] Furthermore, combined with Figure 7 and Figure 8 As shown, in some embodiments, the third burner 1230 is disposed in the first space 1310 and is lower than the top edge of the first space 1310. Specifically, the third burner 1230 is lower than the top edge of the first space 1310, so that the third burner 1230 is relatively close to the bottom of the first space 1310. As described above, the first space 1310 forms a high-temperature space, and the gas ejected from the third burner 1230 enters the first space 1310. Even if the second burner 1220 does not stabilize the flame of the third burner 1230, the efficient combustion of the gas ejected from the third burner 1230 can be ensured. Moreover, since the third burner 1230 is lower than the top edge of the first space 1310, the third burner 1230, the second burner 1220 and the first burner 1210 cooperate to radiate more heat upward, thereby improving the heating efficiency of the cooker.

[0064] Combination Figure 6As shown, in some embodiments, the first burner 1210 and the third burner 1230 are connected to the same blast air source, and the sum of the outlet areas of the first burner 1210 is designed to be greater than the sum of the outlet areas of the third burner 1230. As can be seen from the above, the third burner 1230 is used to spray blast air and fuel gas, so the third burner 1230 will also have a certain degree of flame separation. In addition to directly using the flame generated by the second burner 1220 to stabilize the flame of the third burner 1230, the first burner 1210 and the third burner 1230 can also be connected to the same blast air source, that is, the same blast air source provides blast air to the first burner 1210 and the third burner 1230 at the same time (such as the same fan 4000 provides blast air to the first burner 1210 and the third burner 1230), and Moreover, the sum of the outlet areas of the first burners 1210 is greater than the sum of the outlet areas of the third burners 1230, that is, the sum of the outlet areas of all the first burners 1210 is larger than the sum of the outlet areas of all the third burners 1230. Since the sum of the outlet areas of the third burners 1230 is smaller, the resistance of the gas (blast air and fuel gas) ejected from the third burners 1230 is greater than the resistance ejected from the first burners 1210. In this way, the flow rate (flow) of the gas ejected from the third burners 1230 can be appropriately reduced, thereby suppressing the flame separation phenomenon at the third burners 1230.

[0065] Combination Figure 1 and Figure 2 As shown, in some embodiments, the burner 100 includes a plurality of first burners 1210, where a plurality means two or more, that is, the number of the first burners 1210 is at least two, and the plurality of first burners 1210 are arranged alternately in a ring shape, for example, the plurality of first burners 1210 are arranged alternately in a ring shape along the circumference of the burner 100, and the circumference can be understood as the direction surrounding the center of the burner 100. The plurality of first burners 1210 eject gas to generate flames, which can achieve large-scale heating of the cooker. In addition to the above, it can also be combined with Fig. 9 and Fig.10 As shown, in some embodiments, the first burner 1210 is in the shape of an annular seam, and the annular seam-shaped first burner 1210 can also achieve large-scale heating of the cooker, and when the first burner 1210 is designed to be in the shape of an annular seam, the first burner 1210 is continuous along the circumference of the burner 100, so that the excess oxygen in the gas ejected from the first burner 1210 can increase the contact with the fuel gas ejected from the second burner 1220, thereby further improving the oxygen supplement effect on the gas ejected from the second burner 1220.

[0066] Combination Figure 1 and Figure 2As shown, in some embodiments, the burner 100 includes a plurality of second burners 1220, and a plurality means two or more, that is, the number of the second burners 1220 is at least two, and the plurality of second burners 1220 are arranged alternately in an annular manner, for example, the plurality of second burners 1220 are arranged alternately in an annular manner along the circumference of the burner 100, and the circumference can be understood as the direction surrounding the center of the burner 100, and the plurality of second burners 1220 eject gas to generate flames, which can achieve large-scale heating of the cooker. In addition to the above situation, in some embodiments, the second burner 1220 is in the shape of an annular seam, and the annular seam-shaped second burner 1220 can also achieve large-scale heating of the cooker.

[0067] Combination Figure 1 and Figure 2 As shown, in some embodiments, the burner 100 includes a plurality of third burners 1230, and a plurality means two or more, that is, the number of the third burners 1230 is at least two, and the plurality of third burners 1230 are arranged alternately or densely in a ring shape. In addition to the above situation, in some embodiments, the third burners 1230 are in the shape of an annular seam, and the annular seam-shaped third burners 1230 are continuous along the circumference of the burner 100, so that the excess oxygen in the gas ejected from the third burner 1230 can increase the contact with the fuel gas ejected from the second burner 1220, and further improve the oxygen supplement effect on the gas ejected from the second burner 1220.

[0068] Since the first burner 1210 is far away from the center of the burner 100 relative to the second burner 1220, when the first burner 1210 includes multiple and is arranged in an annular shape, the multiple first burners 1210 surround the second burner 1220 (the second burner 1220 can be multiple or in an annular shape), and when the first burner 1210 is in an annular shape, the annular first burner 1210 surrounds the second burner 1220 (the second burner 1220 can be multiple or in an annular shape). Since the second burner 1220 is far away from the center of the burner 100 relative to the third burner 1230, when the second burner 1220 includes multiple and is arranged in an annular shape, the multiple second burners 1220 surround the third burner 1230 (the third burner 1230 can be multiple or in an annular shape), and when the second burner 1220 is in an annular shape, the annular second burner 1220 surrounds the third burner 1230 (the third burner 1230 can be multiple or in an annular shape).

[0069] Combination Figures 5 to 8As shown, in some embodiments, the burner 100 includes a burner head 2000 and a fire cover 1000, the burner head 2000 is provided with a first cavity 2110, a second cavity 2120 and a third cavity 2130, the fire cover 1000 is arranged on the burner head 2000 so as to cover the first cavity 2110, the second cavity 2120 and the third cavity 2130, the fire cover 1000 is provided with a first burner port 1210, a second burner port 1220 and a third burner port 1230, the first burner port 1210 is communicated with the first cavity 2110, the second burner port 1220 is communicated with the second cavity 2120, the third burner port 1230 is communicated with the third cavity 2130, the first cavity 2110 is used to receive blast air and gas, the second cavity 2120 is used to receive induced air and gas, and the third cavity 2130 is used to receive blast air and gas.

[0070] Specifically, the stove head 2000 can be integrally formed, or it can be assembled by connecting separate parts, the first cavity 2110 surrounds the second cavity 2120, the second cavity 2120 surrounds the third cavity 2130, the blast air and the gas are introduced into the first cavity 2110, mixed, and then ejected from the first burner 1210 to be ignited to form a flame, the induced air and the gas are introduced into the second cavity 2120, mixed, and then ejected from the second burner 1220 to be ignited to form a flame, and the blast air and the gas are introduced into the third cavity 2130, mixed, and then ejected from the third burner 1230 to be ignited to form a flame. Optionally, the first cavity 2110 and the third cavity 2130 can be designed to be connected, so that the blast air and the gas can enter the third cavity 2130 after entering the first cavity 2110, or can enter the first cavity 2110 after entering the third cavity 2130.

[0071] Furthermore, the fire cover 1000 includes a first fire cover 1110 , a second fire cover 1120 and a third fire cover 1130 , and the first fire port 1210 , the second fire port 1220 and the third fire port 1230 are formed by the cooperation of the first fire cover 1110 , the second fire cover 1120 and the third fire cover 1130 . For example, the first fire cover 1110, the second fire cover 1120 and the third fire cover 1130 are manufactured separately, the second fire cover 1120 is provided with a second fire port 1220, and the second fire cover 1120 is placed on the burner head 2000 under the action of gravity to cover the second cavity 2120, the first fire cover 1110 is placed on the burner head 2000 under the action of gravity, surrounds and overlaps the second fire cover 1120, and cooperates with the second fire cover 1120 to enclose the first fire port 1210 and cover the first cavity 2110, the inner side of the first fire cover 1110 is connected to the inner side of the second fire cover 1120 to form the above-mentioned annular wall 1300 for easy cleaning, and the third fire cover 1130 is provided with a third fire port 1230, and the third fire cover 1130 is placed on the burner head 2000 under the action of gravity to cover the third cavity 2130.

[0072] Combination Figure 1 , Figure 5 and Figure 6 As shown, in some embodiments, the burner 100 includes a first ejector tube 3100 and a second ejector tube 3200. The first ejector tube 3100 is connected to the burner head 2000 so as to communicate with the first cavity 2110 or the third cavity 2130. The second ejector tube 3200 is connected to the burner head 2000 so as to communicate with the second cavity 2120. The air inlet end 3110 of the first ejector tube 3100 cooperates with the nozzle and is used to receive blast air. The air inlet end 3210 of the second ejector tube 3200 cooperates with the nozzle.

[0073] Specifically, the first ejector tube 3100 has a Venturi structure, and the air inlet end 3110 of the first ejector tube 3100 cooperates with the nozzle, that is, the nozzle sprays the gas at the air inlet end 3110 of the first ejector tube 3100, and at the same time, the blast air enters through the air inlet end 3110 of the first ejector tube 3100, for example, by forced blasting by the fan 4000, and the blast air and the gas are transported to the first cavity 2110 and the third cavity 2130, and finally ejected from the first burner 1210 and the third burner 1230. It can be understood that the fan 4000 can be connected and fixed to the first ejector tube 3100, which is more convenient for the fan 4000 to cooperate with the air inlet end 3110 of the first ejector tube 3100. The second ejector tube 3200 has a Venturi structure, and the air inlet end 3210 of the second ejector tube 3200 cooperates with the nozzle, that is, the nozzle is aimed at the air inlet end 3210 of the second ejector tube 3200 to spray the fuel gas. At the same time, a negative pressure is formed on the surrounding environment to eject the air. The ejected air and the fuel gas are transported to the second cavity 2120 for mixing and finally ejected from the second burner 1220.

[0074] The second aspect of the present application discloses a gas stove, Figures 1 to 10 As shown, the gas stove includes the above-mentioned burner 100, and the burner 100 includes a first flame port 1210, a second flame port 1220 and a third flame port 1230, wherein the first flame port 1210 is used for supplying blast air and gas spraying, the second flame port 1220 is used for supplying induced air and gas spraying, and the third flame port 1230 is used for supplying blast air and gas spraying, and the second flame port 1220 is close to the center of the burner 100 relative to the first flame port 1210, and the third flame port 1230 is close to the center of the burner 100 relative to the second flame port 1220. By setting the first burner 1210, the second burner 1220 and the third burner 1230, the first burner 1210 and the third burner 1230 are respectively used for blast air and gas spraying, so that the gas sprayed from the first burner 1210 and the gas sprayed from the third burner 1230 can be fully burned, and the second burner 1220 is used for induced air and gas spraying. Since the second burner 1220 is set between the first burner 1210 and the third burner 1230, the excess oxygen in the gas sprayed from the first burner 1210 and the third burner 1230 is supplemented from both sides of the second burner 1220 to the gas sprayed from the second burner 1220, and the oxygen supplement efficiency is higher, so that the gas sprayed from the second burner 1220 can be fully burned. The improvement of the above scheme is beneficial to the improvement of the thermal efficiency of the gas stove.

[0075] In some embodiments, the gas stove includes a valve body (not shown in the figure), which is used to adjust the amount of gas. When the valve body interrupts the gas supply to the first burner 1210 and the third burner 1230, the valve body can maintain the gas supply to the second burner 1220, and at this time the fan 4000 is still in working condition.

[0076] Specifically, the valve body is a device for regulating the gas flow rate. The inlet of the valve body is connected to the gas pipeline, and the outlet of the valve body is connected to the nozzle. The amount of gas that eventually leads to the first burner 1210, the second burner 1220, and the third burner 1230 is regulated by the regulating function of the valve body. The specific structure of the valve body can be referred to in the relevant technology and will not be described in detail here. When the valve body is adjusted until the gas supply to the first burner 1210 and the third burner 1230 is interrupted, the gas to the second burner 1220 can still be maintained, and the fan 4000 is also in working state at this time. In this way, the air (blast air) forcibly transported by the fan 4000 is ejected through the first burner 1210 and the third burner 1230 and supplemented to the gas ejected from the second burner 1220, ensuring that the gas ejected from the second burner 1220 can also be fully burned when the gas is not ejected through the first burner 1210 and the third burner 1230.

[0077] It is understandable that the fan 4000 can be started synchronously when the gas stove is ignited. No matter how the valve body is adjusted, the fan 4000 remains in operation until the gas stove is turned off. Of course, other control logics can also be used, which will not be elaborated here.

[0078] The third aspect of the present application discloses an integrated appliance, which includes the gas stove of the above embodiment. The so-called integrated appliance is a device that integrates the gas stove and another traditional electrical function. For example, at least one of a microwave oven, an oven, a steamer, and a range hood can be integrated with the gas stove to form an integrated appliance. Of course, the integrated appliance is not limited to the aforementioned appliances. As long as it can achieve more functions than a single gas stove when integrated with the gas stove, it can be regarded as an integrated appliance. It can be understood that the gas stove of the integrated appliance of this embodiment adopts the technical solution of the above embodiment, and therefore has at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0079] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made based on the concept of the present application and the contents of the present application description and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A burner (100), characterized in that: The burner (100) comprises: A first burner (1210) is suitable for spraying fuel gas and blast air; a second burner (1220) adapted to eject fuel gas and induced air, and the second burner (1220) is closer to the center of the burner (100) than the first burner (1210); and The third burner (1230) is suitable for spraying fuel gas and blast air, and the third burner (1230) is closer to the center of the burner (100) relative to the second burner (1220).

2. The burner (100) according to claim 1, characterized in that: The flame generated by the second burner (1220) is suitable for stabilizing the flame of the first burner (1210) and / or the second burner (1220).

3. The burner (100) according to claim 1 or 2, characterized in that: The burner (100) comprises an annular wall (1300) surrounding the center of the burner (100), the annular wall (1300) gradually expands from bottom to top and encloses a first space (1310), and the first burner (1210) and the second burner (1220) are arranged on the annular wall (1300).

4. The burner (100) according to claim 3, characterized in that: The first burner (1210) is higher than the second burner (1220), and the minimum distance between the first burner (1210) and the second burner (1220) along the axial direction of the burner (100) is no more than 15 mm, and the minimum distance between the first burner (1210) and the second burner (1220) along the radial direction of the burner (100) is no more than 10 mm.

5. The burner (100) according to claim 3, characterized in that: The third fire port (1230) is disposed in the first space (1310) and is lower than the top edge of the first space (1310).

6. The burner (100) according to claim 1 or 2, characterized in that: The first burner (1210) and the third burner (1230) are connected to the same blast air source, and the sum of the air outlet areas of the first burner (1210) is greater than the sum of the air outlet areas of the third burner (1230).

7. The burner (100) according to claim 1, characterized in that: The burner (100) comprises a plurality of the first burners (1210), wherein the plurality of the first burners (1210) are alternately arranged in a ring shape and surround the second burner (1220); And / or, the burner (100) comprises a plurality of the second burners (1220), and the plurality of the second burners (1220) are alternately arranged in a ring shape and surround the third burner (1230); And / or, the burner (100) includes a plurality of the third burners (1230).

8. The burner (100) according to claim 1, characterized in that: The first burner (1210) is in the shape of an annular seam and surrounds the second burner (1220); and / or, the second burner (1220) is in the shape of an annular seam and surrounds the third burner (1230); And / or, the third burner (1230) is in the shape of an annular seam.

9. The burner (100) according to claim 1, characterized in that: The burner (100) comprises a burner head (2000) and a fire cover (1000) arranged on the burner head (2000); the burner head (2000) is provided with a first cavity (2110), a second cavity (2120) and a third cavity (2130); the fire cover (1000) is provided with the first burner port (1210), the second burner port (1220) and the third burner port (1230); the first burner port (1210) is connected to the first cavity (2110), the second burner port (1220) is connected to the second cavity (2120), and the third burner port (1230) is connected to the third cavity (2130).

10. The burner (100) according to claim 9, characterized in that The first cavity (2110) is communicated with the third cavity (2130), and the burner (100) comprises a first ejector tube (3100) and a second ejector tube (3200), the first ejector tube (3100) is connected to the burner head (2000) and is communicated with the first cavity (2110) or the third cavity (2130), the second ejector tube (3200) is connected to the burner head (2000) and is communicated with the second cavity (2120), an air inlet end (3110) of the first ejector tube (3100) is suitable for receiving fuel gas and blast air, and an air inlet end (3210) of the second ejector tube (3200) is suitable for receiving fuel gas and ejection air.

11. The burner (100) according to claim 10, characterized in that The burner (100) comprises a fan (4000), wherein the fan (4000) is suitable for providing blast air, and the fan (4000) and the first ejector pipe (3100) are connected and fixed.

12. A gas stove, characterized in that: The gas stove comprises the burner (100) according to any one of claims 1 to 11.

13. The gas stove according to claim 12, characterized in that: The gas stove comprises a valve body, which is suitable for adjusting the amount of gas. When the valve body interrupts the gas supply to the first burner (1210) and the third burner (1230), the valve body is suitable for maintaining the gas supply to the second burner (1220), and the fan (4000) of the gas stove is in working state to provide blowing air.

14. An integrated electrical appliance, characterized in that: The integrated electrical appliance comprises the gas stove according to claim 12 or 13.

Images