Combustor, gas stove and integrated electric appliance
By designing multiple fire ports in the burner and using blower air to provide secondary air, the problem of low combustion efficiency of gas stove when there is insufficient air is solved, and the full combustion of gas and the improvement of thermal efficiency of gas stove is achieved.
Patent Information
- Application Number
- CN202421811820.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The burner of the gas stove needs to replenish secondary air when there is insufficient primary air. In the prior art, the supplementation of secondary air depends on buoyancy and coiling and suction, resulting in high component size requirements and thermal efficiency needs to be improved.
A burner is designed, including a first fire port, a second fire port and a third fire port. The second fire port is located between the first fire port and the third fire port for supplying blower air and gas to provide sufficient oxygen to ensure sufficient combustion of the gas.
Through this design, the gas emitted from the first, second and third fire outlets can be fully burned, improving the thermal efficiency of the gas stove.
Smart Images
Figure CN222911646U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of gas stoves, and particularly to a burner, a gas stove, and an integrated electrical appliance. Background Art
[0002] The combustion of the burner of a gas stove requires supplementary secondary air on the premise of insufficient primary air. Generally speaking, the supplementary secondary air is replenished from the surrounding environment to the flame by buoyancy and entrainment. This method has relatively high requirements for the size of components. Therefore, the thermal efficiency of gas stoves still needs to be improved. Utility Model Content
[0003] This application aims to solve at least one of the technical problems in the related art to some extent. For this purpose, this application proposes a burner.
[0004] To achieve the above object, this application discloses a burner, which includes:
[0005] A first flame port, adapted to eject gas and entrained air;
[0006] A second flame port, adapted to eject gas and blast air, and the second flame port is closer to the center of the burner than the first flame port; and
[0007] A third flame port, adapted to eject gas and entrained air, and the third flame port is closer to the center of the burner than the second flame port.
[0008] In some embodiments of this application, the flame generated by the first flame port is adapted to stabilize the flame of the second flame port.
[0009] In some embodiments of this application, the first flame port and the second flame port are arranged with a common wall, and the thickness of the wall between the first flame port and the second flame port is not greater than 6 mm.
[0010] In some embodiments of this application, the burner includes a first air outlet channel, the end of the first air outlet channel forms the first flame port, and at least one first corner is provided upstream of the first flame port in the first air outlet channel;
[0011] And / or, the burner includes a second air outlet channel, the end of the second air outlet channel forms the second flame port, and at least one second corner is provided upstream of the second flame port in the second air outlet channel.
[0012] In some embodiments of this application, the first air outlet channel of the burner includes a first downstream flow section, the end of the first downstream flow section forms the first flame port, and the first downstream flow section is inclined upward or downward away from or towards the center of the burner;
[0013] And / or, the second gas outlet passage of the burner includes a second downstream flow section, the end of the second downstream flow section forms the second flame port, and the second downstream flow section inclines upwardly away from or towards the center of the burner.
[0014] In some embodiments of the present application, the burner includes a burner head and a burner cap provided on the burner head, and the burner cap is provided with the first flame port, the second flame port and the third flame port.
[0015] In some embodiments of the present application, the burner cap includes:
[0016] An outer burner cap provided with the first flame port and the second flame port;
[0017] An inner burner cap provided with the third flame port, the inner burner cap being surrounded by the outer burner cap; and a middle burner cap that shields the space between the outer burner cap and the inner burner cap.
[0018] In some embodiments of the present application, the inner burner cap and the middle burner cap are fixedly connected;
[0019] And / or, the inner burner cap is provided at the center of the burner;
[0020] And / or, the inner burner cap is a porous ceramic plate.
[0021] In some embodiments of the present application, the top surface of the middle burner cap is a flat surface;
[0022] And / or, the top surface of the middle burner cap forms the top surface of the burner cap;
[0023] And / or, the middle burner cap is adapted to be abutted against the inner wall of the outer burner cap along the radial direction of the burner.
[0024] In some embodiments of the present application, the outer burner cap includes a first outer burner cap, a second outer burner cap and a third outer burner cap. The first outer burner cap surrounds the second outer burner cap and there is a first flame port between the first outer burner cap and the second outer burner cap. The second outer burner cap surrounds the third outer burner cap and there is a second flame port between the second outer burner cap and the third outer burner cap. The middle burner cap is provided between the third outer burner cap and the inner burner cap to shield the space between the outer burner cap and the inner burner cap.
[0025] In some embodiments of the present application, the middle burner cap and the third outer burner cap are integrally formed.
[0026] In some embodiments of the present application, the burner head is provided with a first cavity, a second cavity and a third cavity. The first flame port is communicated with the first cavity, the second flame port is communicated with the second cavity, and the third flame port is communicated with the third cavity;
[0027] The burner further includes a first ejector tube, a second ejector tube, and a third ejector tube. The first ejector tube is in communication with the first cavity and is adapted to receive fuel gas and entrained air. The second ejector tube is in communication with the second cavity and is adapted to receive fuel gas and blast air. The third ejector tube is in communication with the third cavity and is adapted to receive fuel gas and entrained air.
[0028] In some embodiments of the present application, the number of the first flame outlets is multiple, and the multiple first flame outlets are arranged in an annular and alternating manner and surround the second flame outlet.
[0029] And / or, the number of the second flame outlets is multiple, and the multiple second flame outlets are arranged in an annular and alternating manner and surround the third flame outlet.
[0030] And / or, the number of the third flame outlets is multiple.
[0031] In some embodiments of the present application, the first flame outlet is in the shape of an annular slit and surrounds the second flame outlet.
[0032] And / or, the second flame outlet is in the shape of an annular slit and surrounds the third flame outlet.
[0033] And / or, the third flame outlet is in the shape of an annular slit.
[0034] The second aspect of the present application discloses a gas stove, which includes the above-mentioned burner.
[0035] In some embodiments of the present application, the gas stove includes a valve body, which is adapted to adjust the fuel gas volume. When the fuel gas supply to the second flame outlet is interrupted in the valve body, the valve body is adapted to maintain the fuel gas supply to the first flame outlet and / or the third flame outlet, and the blower of the gas stove is in a working state to provide blast air.
[0036] The third aspect of the present application discloses an integrated appliance, which includes the above-mentioned gas stove.
[0037] In the technical solution of the present application, the second flame outlet is used for the blast air and the fuel gas to spray out. The blast air provides sufficient oxygen so that the fuel gas sprayed out from the second flame outlet can burn fully. The first flame outlet is used for the entrained air and the fuel gas to spray out. The third flame outlet is used for the entrained air and the fuel gas to spray out. The second flame outlet is arranged between the first flame outlet and the third flame outlet. When the flame generated by the first flame outlet needs secondary air, it can be provided by the surplus oxygen generated by the blast air. When the flame generated by the third flame outlet needs secondary air, it can also be provided by the surplus oxygen generated by the blast air. By such an arrangement, finally, the fuel gas sprayed out from the first flame outlet, the second flame outlet, and the third flame outlet burns fully, with high combustion efficiency, which is beneficial to the improvement of the thermal efficiency of the gas stove.
[0038] Other advantages of the present application will be partly given in the following description, partly become obvious from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] 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 drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other designs can also be obtained based on the structures shown in these drawings.
[0040] Figure 1 Schematic diagram of a burner in some embodiments;
[0041] Figure 2 Cross-sectional view of the mating structure of the burner cap and the burner head in some embodiments;
[0042] Figure 3 Cross-sectional view of the mating structure of the burner cap and the burner head in some embodiments (the cross-section is Figure 2 different);
[0043] Figure 4 For Figure 3 the enlarged view of the part marked A in
[0044] Figure 5 Schematic diagram of the partial structure of the burner in some embodiments (the burner cap is omitted);
[0045] Figure 6 Schematic diagram of the partial structure of the burner in some embodiments (the burner cap is omitted);
[0046] Figure 7 Schematic diagram of the outer burner cap in some embodiments;
[0047] Figure 8 For Figure 7 the cross-sectional view of the structure shown in
[0048] Figure 9 For Figure 8 the enlarged view of the part marked B in
[0049] Figure 10 For Figure 8 the enlarged view of the part marked B in
[0050] Figure 11 Schematic diagram of the outer burner cap in some embodiments (the structure is Figure 7 different);
[0051] Figure 12 For Figure 11 the cross-sectional view of the structure shown in
[0052] Figure 13 is Figure 12 an enlarged view of the part marked as C in
[0053] Figure 14 a schematic diagram of the cooperation structure of the burner cap and the burner head in some embodiments;
[0054] Figure 15 is Figure 14 a cross-sectional view of the structure shown in
[0055] Figure 16 is Figure 15 an enlarged view of the part marked as D in
[0056] Explanation of the reference numerals in the drawings:
[0057] Burner 100, burner cap 1000, outer burner cap 1100, first outer burner cap 1110, second outer burner cap 1120, third outer burner cap 1130, inner burner cap 1200, middle burner cap 1300, first cover body 1310, second cover body 1320, first fire port 1410, second fire port 1420, third fire port 1430, first air outlet channel 1500, first upstream flow section 1510, first middle flow section 1520, first downstream flow section 1530, first corner 1540, second air outlet channel 1600, second upstream flow section 1610, second downstream flow section 1630, second corner 1640, burner head 2000, first cavity 2110, second cavity 2120, third cavity 2130, first ejector pipe 3100, intake end of the first ejector pipe 3110, second ejector pipe 3200, intake end of the second ejector pipe 3210, third ejector pipe 3300, intake end of the third ejector pipe 3310, fan 4000.
[0058] The realization, functional features and advantages of the objectives of this application will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiments
[0059] Next, the technical solutions in the embodiments of this application will be clearly and completely described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without making creative efforts shall fall within the scope of protection of this application.
[0060] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.
[0061] In this application, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" 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 components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0062] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0063] The first aspect of this application discloses a burner 100, in combination with Figures 1 to 4 As shown, in some embodiments, the burner 100 includes a first burner port 1410, a second burner port 1420, and a third burner port 1430. The first burner port 1410 is used for ejecting induced air and gas, the second burner port 1420 is used for ejecting blast air and gas, the third burner port 1430 is used for ejecting induced air and gas, and the second burner port 1420 is closer to the center of the burner 100 than the first burner port 1410, and the third burner port 1430 is closer to the center of the burner 100 than the second burner port 1420.
[0064] The second burner port 1420 is used for ejecting blast air and gas. The blast air provides sufficient oxygen so that the gas ejected from the second burner port 1420 can burn sufficiently. The first burner port 1410 is used for ejecting induced air and gas, and the third burner port 1430 is used for ejecting induced air and gas. The second burner port 1420 is arranged between the first burner port 1410 and the third burner port 1430. When the flame generated by the first burner port 1410 requires secondary air, it can be provided by the excess oxygen generated by the blast air. When the flame generated by the third burner port 1430 requires secondary air, it can also be provided by the excess oxygen generated by the blast air. By setting like this, finally, the gas ejected from the first burner port 1410, the second burner port 1420, and the third burner port 1430 burns sufficiently, with high combustion efficiency, which is beneficial to improving the thermal efficiency of the gas stove.
[0065] Specifically, the second burner orifice 1420 is closer to the center of the burner 100 relative to the first burner orifice 1410, and the third burner orifice 1430 is closer to the center of the burner 100 relative to the second burner orifice 1420. The center of the burner 100 refers to the center of the flame outlet range of the burner 100. That is, when observing the burner 100 from top to bottom, the first burner orifice 1410 is more outward relative to the second burner orifice 1420 and the third burner orifice 1430, and the third burner orifice 1430 is more inward relative to the first burner orifice 1410 and the second burner orifice 1420. The second burner orifice 1420 is located between the first burner orifice 1410 and the third burner orifice 1430. In this way, the third burner orifice 1430, the second burner orifice 1420, and the first burner orifice 1410 are arranged in sequence in the direction away from the center of the burner 100 (the minimum distance between the first burner orifice 1410 and the center of the burner 100 is greater than the minimum distance between the second burner orifice 1420 and the center of the burner 100, and the minimum distance between the second burner orifice 1420 and the center of the burner 100 is greater than the minimum distance between the third burner orifice 1430 and the center of the burner 100). In some cases, the third burner orifice 1430 can just be at the center position of the burner 100, which is more conducive to the uniform distribution of temperature.
[0066] The second burner orifice 1420 is used for the blast air and the gas to be ejected. The blast air and the gas enter the interior of the burner 100, and then are ejected from the interior of the burner 100 through the second burner orifice 1420 and are ignited to form a flame. The gas supply 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 sprayed into the interior of the burner 100. During this process, blast air is provided. The blast air is generated by a fluid machine, for example, the blast air is provided by the forced blast of a blower 4000. The blast air enters the interior of the burner 100 and mixes with the gas (the blast air is primary air), and then is ejected from the second burner orifice 1420 together with the gas. Relative to the induced air, the blast air can provide more oxygen, so that the gas ejected from the second burner orifice 1420 is in a state of rich-oxygen combustion, thereby enabling the full combustion of the gas ejected from the second burner orifice 1420 (the flame generated by the second burner orifice 1420 can still entrain the secondary air in the surrounding environment to participate in combustion).
[0067] The first burner port 1410 is used for ejecting the entrained air and gas. The entrained air and gas enter the interior of the burner 100, and then are ejected from the interior of the burner 100 through the first burner port 1410 and are ignited to form a flame. The gas supply can come from bottled liquefied petroleum 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 sprayed into the interior of the burner 100. During the process of the gas being sprayed into the interior of the burner 100, the entrainment of air is synchronously achieved. For the entrainment of air, reference can be made to the related technology, which is generally based on the Venturi principle. During the process of the gas being sprayed into the interior of the burner 100, a negative pressure is formed in the surrounding environment, so that the air in the surrounding environment is synchronously entrained into the interior of the burner 100 along with the spraying of the gas (the air that enters the interior of the burner 100 through the entrainment effect is called entrained air, and the entrained air is primary air). The entrained air and gas are mixed in the interior of the burner 100 and then ejected from the first burner port 1410 and are then ignited to form a flame. When the entrained air ejected from the first burner port 1410 is not sufficient to support the combustion of the gas ejected from the first burner port 1410, secondary air needs to be supplemented. Since the blast air is ejected from the second burner port 1420, the blast air ejected from the second burner port 1420 can provide enough oxygen, so that in addition to participating in the combustion of the gas ejected from the second burner port 1420, the blast air ejected from the second burner port 1420 can also provide excess oxygen to be supplemented into the gas ejected from the first burner port 1410 to assist the combustion of the gas ejected from the first burner port 1410. Compared with supplementing secondary air from the surrounding environment by entrainment, the excess oxygen provided by the blast air ejected from the second burner port 1420 is more actively supplemented into the gas ejected from the first burner port 1410. By setting it like this, the gas ejected from the first burner port 1410 can burn fully (in this case, the flame generated by the first burner port 1410 can still entrain the secondary air in the surrounding environment to participate in the combustion).
[0068] Similarly, the third burner port 1430 is used for ejecting entrained air and gas. The entrained air and gas enter the interior of the burner 100, and then are ejected from the interior of the burner 100 through the third burner port 1430 and ignited to form a flame. The gas supply 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 sprayed into the interior of the burner 100. During the process of the gas being sprayed into the interior of the burner 100, entrainment of air is synchronously achieved. The entrained air and gas enter the interior of the burner 100, mix, and then are ejected from the third burner port 1430 and then ignited to form a flame. When the entrained air ejected from the third burner port 1430 is not sufficient to support the combustion of the gas ejected from the third burner port 1430, secondary air needs to be supplemented. Since the air ejected from the second burner port 1420 is blast air, the blast air ejected from the second burner port 1420 can provide enough oxygen, so that in addition to participating in the combustion of the gas ejected from the second burner port 1420, the blast air ejected from the second burner port 1420 can also provide excess oxygen to supplement the gas ejected from the third burner port 1430, assisting the combustion of the gas ejected from the third burner port 1430. Compared with supplementing secondary air by entrainment from the surrounding environment, the excess oxygen provided by the blast air ejected from the second burner port 1420 is more actively supplemented into the gas ejected from the third burner port 1430. By such an arrangement, the gas ejected from the third burner port 1430 burns sufficiently (in this case, the flame generated by the third burner port 1430 can still entrain secondary air from the surrounding environment to participate in combustion).
[0069] Through the above solution, the gas ejected from the first burner port 1410, the second burner port 1420, and the third burner port 1430 burns sufficiently, with high combustion efficiency, which is beneficial to improving the thermal efficiency of the gas stove. It can be understood that the sufficient combustion mentioned in this article is relative to the combustion state when only relying on entrained air and entraining air from the surrounding environment (that is, relatively more sufficient).
[0070] In some embodiments, the flame generated by the first burner opening 1410 is suitable for stabilizing the flame of the second burner opening 1420. Specifically, the second burner opening 1420 ejects blast air and fuel gas. The inventors have found that although sufficient combustion of the fuel gas can be achieved through the blast air, due to the effect of the blast air, the gas flow rate ejected from the second burner opening 1420 is relatively large, and the velocity of the fuel gas leaving the second burner opening 1420 is greater than the combustion velocity of the fuel gas, which easily causes a flame lift phenomenon. Since the first burner opening 1410 ejects entrained air and fuel gas, and the entrained air is naturally entrained by injecting the fuel gas through a nozzle and does not need to be generated based on a fluid machine, the velocity of the fuel gas leaving the first burner opening 1410 is not much different from the combustion velocity of the fuel gas, enabling stable combustion, that is, the flame state formed by the first burner opening 1410 is stable. Since the flame formed by the first burner opening 1410 is more stable, the flame generated by the first burner opening 1410 can be used to stabilize the flame of the second burner opening 1420.
[0071] That is to say, in addition to being able to heat the cooking utensil, the flame formed by the first burner opening 1410 also functions as a flame stabilizing hole / flame stabilizing groove. Generally speaking, since the first burner opening 1410 ejects entrained air and fuel gas, the fuel gas ejected from the first burner opening 1410 has a more stable combustion state. By adjusting the position, angle, or distance between the first burner opening 1410 and the second burner opening 1420, etc., the flame formed by the first burner opening 1410 ignites the fuel gas ejected from the second burner opening 1420 (for example, the flame formed by the first burner opening 1410 heats the root of the fuel gas ejected from the second burner opening 1420 to ignite the fuel gas ejected from the second burner opening 1420). When the fuel gas quickly leaves the second burner opening 1420, it is ignited by the flame formed by the first burner opening 1410, so that the fuel gas that quickly leaves the second burner opening 1420 burns at the second burner opening 1420, thereby suppressing the occurrence of the flame lift phenomenon at the second burner opening 1420 and playing a role in stabilizing the flame of the second burner opening 1420, and further improving the combustion efficiency.
[0072] Combined with Figure 4 As shown, in some embodiments, the first burner opening 1410 and the second burner opening 1420 are arranged with a common wall, and the thickness of the wall between the first burner opening 1410 and the second burner opening 1420 is not greater than 6 mm. For example, the thickness of the wall between the first burner opening 1410 and the second burner opening 1420 is 0.2 mm, 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, or 6 mm. By setting it in this way, the first burner opening 1410 and the second burner opening 1420 are made as close as possible, further improving the flame stabilizing effect of the flame generated by the first burner opening 1410 on the second burner opening 1420.
[0073] Combined with Figures 7 to 10As shown, in some embodiments, the burner 100 includes a first gas outlet channel 1500. The end of the first gas outlet channel 1500 forms a first flame outlet 1410. And the first gas outlet channel 1500 is provided with at least one first corner 1540. The first corner 1540 is arranged upstream of the first flame outlet 1410. The gas flowing along the first gas outlet channel 1500 needs to flow through the first corner 1540 before spraying out from the first flame outlet 1410. The setting of the first corner 1540 is beneficial to further uniform mixing of the gas and is beneficial to reducing the speed of the gas, improving the uniformity and stability of the gas spraying out from the first flame outlet 1410.
[0074] For example, the first gas outlet channel 1500 includes a first upstream flow section 1510, a first middle flow section 1520 and a first downstream flow section 1530. The first upstream flow section 1510 intersects with the first middle flow section 1520 to form a first corner 1540. The first middle flow section 1520 intersects with the first downstream flow section 1530 to form a first corner 1540. The end of the first downstream flow section 1530 forms the first flame outlet 1410. Specifically, the gas entering the interior of the burner 100 flows along the first gas outlet channel 1500 and finally discharges from the first flame outlet 1410. The first upstream flow section 1510 is located upstream of the first middle flow section 1520. The first middle flow section 1520 is located upstream of the first downstream flow section 1530. The gas flows through the first upstream flow section 1510, the first middle flow section 1520 and the first downstream flow section 1530 in sequence and finally discharges from the first flame outlet 1410. In this embodiment, a first corner 1540 is formed at the intersection between the first upstream flow section 1510 and the first middle flow section 1520. The gas needs to turn when flowing from the first upstream flow section 1510 to the first middle flow section 1520. A first corner 1540 is formed at the intersection between the first middle flow section 1520 and the first downstream flow section 1530. The gas also needs to turn when flowing from the first middle flow section 1520 to the first downstream flow section 1530. In this way, it is beneficial to further uniform mixing of the gas and is beneficial to reducing the speed of the gas, improving the uniformity and stability of the gas spraying out from the first flame outlet 1410.
[0075] Continuing with reference to Figures 7 to 10 As shown, in some embodiments, the burner 100 includes a second gas outlet channel 1600. The end of the second gas outlet channel 1600 forms a second flame outlet 1420. And the second gas outlet channel 1600 is provided with at least one second corner 1640. The second corner 1640 is arranged upstream of the second flame outlet 1420. The gas flowing along the second gas outlet channel 1600 needs to flow through the second corner 1640 before spraying out from the second flame outlet 1420. The setting of the second corner 1640 is beneficial to further uniform mixing of the gas and is beneficial to reducing the speed of the gas, improving the uniformity and stability of the gas spraying out from the second flame outlet 1420.
[0076] For example, the second gas outlet passage 1600 includes a second upstream flow section 1610 and a second downstream flow section 1630. The second upstream flow section 1610 and the second downstream flow section 1630 intersect to form a second corner 1640, and the end of the second downstream flow section 1630 constitutes a second burner port 1420. Specifically, the gas entering the interior of the burner 100 flows along the second gas outlet passage 1600 and finally discharges from the second burner port 1420. The second upstream flow section 1610 is located upstream of the second downstream flow section 1630. The gas flows through the second upstream flow section 1610 and the second downstream flow section 1630 in sequence and finally discharges from the second burner port 1420. In this embodiment, a second corner 1640 is formed at the intersection between the second upstream flow section 1610 and the second downstream flow section 1630. When the gas flows from the second upstream flow section 1610 to the second downstream flow section 1630, it needs to turn, which is beneficial to further uniform mixing of the gas and is also beneficial to reducing the speed of the gas, improving the uniformity and stability of the gas ejected from the second burner port 1420.
[0077] Continuing to combine Figures 7 to 10 As shown, in some embodiments, the first gas outlet passage 1500 includes a first downstream flow section 1530, and the end of the first downstream flow section 1530 constitutes a first burner port 1410. The first downstream flow section 1530 is inclined upward and away from the center of the burner 100. The orientation herein is based on the installation of the gas stove in the use environment. The side of the gas stove facing the ground is the lower (bottom), and the side facing away from the ground is the upper (top). Through such a setting of the first downstream flow section 1530, the flame formed by the first burner port 1410 can achieve large-range heating of the cooking utensil. Similarly, the second gas outlet passage 1600 includes a second downstream flow section 1630, and the end of the second downstream flow section 1630 constitutes a second burner port 1420. The second downstream flow section 1630 is inclined upward and away from the center of the burner 100, so that the flame formed by the second burner port 1420 can achieve large-range heating of the cooking utensil.
[0078] Combined with Figures 11 to 13 As shown, in some embodiments, the first downstream flow section 1530 of the first gas outlet passage 1500 is inclined upward and toward the center of the burner 100, and the second downstream flow section 1630 of the second gas outlet passage 1600 is inclined upward and toward the center of the burner 100. Since the third burner port 1430 is closer to the center of the burner 100 than the first burner port 1410 and the second burner port 1420, through such a setting of the first downstream flow section 1530 and the second downstream flow section 1630, it will be more beneficial to the flame transfer between the first burner port 1410, the second burner port 1420, and the third burner port 1430.
[0079] Combined with Figures 1 to 6As shown, in some embodiments, the burner 100 includes a burner head 2000 and a burner cap 1000. The burner cap 1000 is disposed on the burner head 2000 to jointly enclose a certain internal space with the burner head 2000. The burner cap 1000 is provided with a first burner port 1410, a second burner port 1420, and a third burner port 1430. The first burner port 1410 communicates with the internal space, the second burner port 1420 communicates with the internal space, and the third burner port 1430 communicates with the internal space.
[0080] For example, the burner head 2000 is provided with a first cavity 2110, a second cavity 2120, and a third cavity 2130. When the burner cap 1000 is disposed on the burner head 2000, it respectively encloses the first cavity 2110, the second cavity 2120, and the third cavity 2130. The first burner port 1410 communicates with the first cavity 2110. The induced air and gas enter the first cavity 2110 and are ejected through the first burner port 1410. The second burner port 1420 communicates with the second cavity 2120. The blast air and gas enter the second cavity 2120 and are ejected through the second burner port 1420. The third burner port 1430 communicates with the third cavity 2130. The induced air and gas enter the third cavity 2130 and are ejected through the third burner port 1430.
[0081] It can be understood that since both the first burner port 1410 and the third burner port 1430 are used for ejecting the induced air and gas, the first cavity 2110 and the third cavity 2130 can be designed to be connected on the burner head 2000. The induced air and gas can first enter the first cavity 2110 and then enter the third cavity 2130, and finally be ejected from the first burner port 1410 and the third burner port 1430. The induced air and gas can also first enter the third cavity 2130 and then enter the first cavity 2110, and finally be ejected from the first burner port 1410 and the third burner port 1430.
[0082] Since the end of the first air outlet passage 1500 constitutes the first burner port 1410 and the end of the second air outlet passage 1600 constitutes the second burner port 1420, the burner cap 1000 can be provided with the first air outlet passage 1500 and the second air outlet passage 1600.
[0083] Combined Figure 5 and Figure 6 As shown, in some embodiments, the burner 100 further includes a first ejector tube 3100, a second ejector tube 3200, and a third ejector tube 3300. The first ejector tube 3100 communicates with the first cavity 2110 and is used for receiving the induced air and gas. The second ejector tube 3200 communicates with the second cavity 2120 and is used for receiving the blast air and gas. The third ejector tube 3300 communicates with the third cavity 2130 and is used for receiving the induced air and gas.
[0084] Specifically, the first ejector tube 3100 has a Venturi structure. The first ejector tube 3100 is connected to the burner head 2000 such that the first ejector tube 3100 communicates with the first cavity 2110. The air inlet end 3110 of the first ejector tube 3100 cooperates with the nozzle, and the nozzle sprays fuel gas towards the air inlet end 3110 of the first ejector tube 3100. At the same time, a negative pressure is formed on the surrounding environment to eject air. The ejected air and the fuel gas are transported to the first cavity 2110 for mixing, and finally ejected from the first burner port 1410.
[0085] The second ejector tube 3200 has a Venturi structure. The second ejector tube 3200 is connected to the burner head 2000 such that the second ejector tube 3200 communicates with the second cavity 2120. The air inlet end 3210 of the second ejector tube 3200 cooperates with the nozzle, and the nozzle sprays fuel gas towards the air inlet end 3210 of the second ejector tube 3200. At the same time, the blowing air enters through the air inlet end 3210 of the second ejector tube 3200, for example, realized by forced blowing through the blower 4000. The blowing air and the fuel gas are transported to the second cavity 2120 for mixing, and finally ejected from the second burner port 1420. The blower 4000 can be fixedly connected to the second ejector tube 3200, which is more convenient for the cooperation between the blower 4000 and the air inlet end 3210 of the second ejector tube 3200.
[0086] The third ejector tube 3300 has a Venturi structure. The third ejector tube 3300 is connected to the burner head 2000 such that the third ejector tube 3300 communicates with the third cavity 2130. The air inlet end 3310 of the third ejector tube 3300 cooperates with the nozzle, and the nozzle sprays fuel gas towards the air inlet end 3310 of the third ejector tube 3300. At the same time, a negative pressure is formed on the surrounding environment to eject air. The ejected air and the fuel gas are transported to the third cavity 2130 for mixing, and finally ejected from the third burner port 1430.
[0087] By supplying gas through the first ejector tube 3100, the second ejector tube 3200, and the third ejector tube 3300 respectively, when at the minimum fire, a flame can be formed only through the third burner port 1430.
[0088] Combined with Figure 3 and Figure 4 As shown, in some embodiments, the burner cap 1000 includes an outer burner cap 1100, an inner burner cap 1200, and a middle burner cap 1300. The outer burner cap 1100 is provided with a first burner port 1410 and a second burner port 1420. The inner burner cap 1200 is provided with a third burner port 1430. The outer burner cap 1100 surrounds the inner burner cap 1200, and the middle burner cap 1300 shields the space between the outer burner cap 1100 and the inner burner cap 1200.
[0089] Specifically, the outer burner cap 1100 is provided with a first burner port 1410 and a second burner port 1420, so that the outer burner cap 1100 can form an outer ring flame. The inner burner cap 1200 is provided with a third burner port 1430, so that the inner burner cap 1200 can form an inner ring flame. The so-called outer burner cap 1100 is the part of the structure that is close to or located on the outside of the burner cap 1000. Correspondingly, the inner burner cap 1200 is the part of the structure that is close to or located at the center of the burner cap 1000. In this way, the outer burner cap 1100 surrounds the inner burner cap 1200 and the two are separated by a certain distance, which also makes the outer ring flame and the inner ring flame separated by a certain distance, increasing the flame outlet range. In order to prevent the space between the outer burner cap 1100 and the inner burner cap 1200 from being exposed and becoming dirty, on this basis, by providing an intermediate burner cap 1300, the intermediate burner cap 1300 blocks the space between the outer burner cap 1100 and the inner burner cap 1200. The so-called blocking means that, along the top-down direction, the space between the outer burner cap 1100 and the inner burner cap 1200 can no longer be seen, thus preventing residue and debris from entering the space between the outer burner cap 1100 and the inner burner cap 1200. It can be understood that since the intermediate burner cap 1300 blocks the space between the outer burner cap 1100 and the inner burner cap 1200, the intermediate burner cap 1300 is externally connected to the outer burner cap 1100 and internally connected to the inner burner cap 1200. In this way, in the direction from the inner burner cap 1200 to the outer burner cap 1100, the top surface of the burner cap 1000 is a solid structure, such as Figure 1 the burner cap shown. Except for the first burner port 1410, the second burner port 1420 and the third burner port 1430, almost the entire top surface of the burner cap 1000 is a solid structure, which makes the burner cap 1000 more integral and easier to clean and maintain.
[0090] It can be understood that the intermediate burner cap 1300 can be a separately prepared component, or at least partially integrally formed with the outer burner cap 1100, or at least partially integrally formed with the inner burner cap 1200.
[0091] Combined with Figure 4 As shown, in some embodiments, the inner burner cap 1200 is fixedly connected to the intermediate burner cap 1300, so that the inner burner cap 1200 and the intermediate burner cap 1300 form an independent module and can be disassembled and assembled synchronously. For example, the inner burner cap 1200 includes a first cover body 1310 and a second cover body 1320. The first cover body 1310 extends vertically and surrounds the inner burner cap 1200. The first cover body 1310 is fixedly connected to the inner burner cap 1200. The second cover body 1320 is provided on the top of the first cover body 1310 and extends towards the outer burner cap 1100 to block the space between the outer burner cap 1100 and the inner burner cap 1200.
[0092] Combined with Figures 1 to 3As shown, in some embodiments, the inner burner cap 1200 is disposed at the center of the burner 100, that is, the flame generated by the inner burner cap 1200 is at the center of the flame outlet range. This is more conducive to the gas stove being in the minimum fire cooking state. For example, the inner burner cap 1200 covers the center of the burner 100.
[0093] Furthermore, the inner burner cap 1200 is a porous ceramic plate. The porous structure enables the inner burner cap 1200 to form a plurality of third fire ports 1430. By designing the inner burner cap 1200 as a porous ceramic plate, the inner burner cap 1200 forms infrared combustion (constituting an infrared combustion burner cap), which is conducive to achieving minimum fire combustion. Moreover, the heat intensity of its fire holes is small, enabling full premixed combustion, reducing the demand for secondary air, and even eliminating the need to supplement secondary air (that is, neither entraining the air in the surrounding environment nor requiring the excess oxygen ejected from the second fire port 1420). For example, the porous ceramic plate is mainly prepared from infrared ceramic materials.
[0094] Combined with Figures 1 to 3 As shown, in some embodiments, the top surface of the medium burner cap 1300 is designed as a flat surface. Since the medium burner cap 1300 blocks the space between the outer burner cap 1100 and the inner burner cap 1200, when the top surface of the medium burner cap 1300 is a flat surface, the integrity of the burner cap 1000 will be further improved, making it easier to clean. Especially when the top surface of the medium burner cap 1300 constitutes the top surface of the burner cap 1000, when wiping the top surface of the burner cap 1000, the user's wiping action is smoother and less likely to be hindered. For example Figure 1 the top surface of the medium burner cap 1300 in
[0095] Furthermore, combined with Figure 3 and Figure 4 As shown, along the radial direction of the burner 100, the medium burner cap 1300 is adapted to be abutted by the inner wall of the outer burner cap 1100. Generally, the medium burner cap 1300 is supported by the stove head 2000 in the direction of gravity. By being abutted by the inner wall of the outer burner cap 1100 along the radial direction of the burner 100, the medium burner cap 1300 is restricted in two directions, making the medium burner cap 1300 more stable. It can be understood that when the gas stove is in the use environment, the up and down direction is the axial direction, the direction of gravity is from top to bottom along the axial direction, and the radial direction is perpendicular to the axial direction.
[0096] Combined with Figures 1 to 4As shown, in some embodiments, the outer burner cap 1100 includes a first outer burner cap 1110, a second outer burner cap 1120, and a third outer burner cap 1130. The first outer burner cap 1110 surrounds the second outer burner cap 1120, and a first fire port 1410 is formed between the first outer burner cap 1110 and the second outer burner cap 1120. The second outer burner cap 1120 surrounds the third outer burner cap 1130, and a second fire port 1420 is provided between the second outer burner cap 1120 and the third outer burner cap 1130. The middle burner cap 1300 is disposed between the third outer burner cap 1130 and the inner burner cap 1200 so as to block the space between the outer burner cap 1100 and the inner burner cap 1200, such that the first fire port 1410, the second fire port 1420, and the third fire port 1430 are arranged in sequence from outside to inside.
[0097] It can be understood that the middle burner cap 1300 and the outer burner cap 1100 can be separate components, or at least part of the middle burner cap 1300 and the outer burner cap 1100 can be integrally formed. The middle burner cap 1300 and the inner burner cap 1200 can be separate components, or at least part of the middle burner cap 1300 and the inner burner cap 1200 can be integrally formed. For example Figures 1 to 4 As shown, the middle burner cap 1300, the outer burner cap 1100, and the inner burner cap 1200 are separate components assembled and fitted together, as Figures 14 to 16 As shown, the middle burner cap 1300 and the third outer burner cap 1130 are integrally formed (i.e., the middle burner cap 1300 and the third outer burner cap 1130 are included on the same component), and the middle burner cap 1300 and the inner burner cap 1200 are separate components.
[0098] In some embodiments, the number of the first fire ports 1410 is multiple. Multiple means two or more, that is, the number of the first fire ports 1410 is at least two. The multiple first fire ports 1410 are arranged in an annular and alternating manner. For example, the multiple first fire ports 1410 are arranged in an annular and alternating manner along the circumferential direction of the burner 100. The circumferential direction can be understood as the direction surrounding the center of the burner 100. The multiple first fire ports 1410 eject gas to generate flames, which can achieve large-range heating of the cooking utensil. In addition to the above situation, it can also be that, in combination with Figure 3 and Figure 4 As shown, in some embodiments, the first fire port 1410 is in an annular slit shape, and the annular-slit-shaped first fire port 1410 can also achieve large-range heating of the cooking utensil.
[0099] In some embodiments, the number of the second flame outlets 1420 is plural, where "plural" means two or more, that is, the number of the second flame outlets 1420 is at least two. The plural second flame outlets 1420 are arranged at intervals in a ring shape. For example, the plural second flame outlets 1420 are arranged at intervals in a ring shape along the circumferential direction of the burner 100. The circumferential direction can be understood as the direction around the center of the burner 100. The plural second flame outlets 1420 eject gas to generate flames, which can achieve large-range heating of the cooking utensil. In addition to the above situation, it can also be, in combination with Figure 3 and Figure 4 As shown, in some embodiments, the second flame outlet 1420 is in the shape of an annular slit. The second flame outlet 1420 in the shape of an annular slit can also achieve large-range heating of the cooking utensil. And when the second flame outlet 1420 is designed in the shape of an annular slit, the second flame outlet 1420 is continuous along the circumferential direction of the burner 100. In this way, the redundant oxygen in the gas ejected from the second flame outlet 1420 can increase the contact with the fuel gas ejected from the first flame outlet 1410 or the third flame outlet 1430, further improving the oxygen supply effect.
[0100] In combination with Figure 3 and Figure 4 As shown, in some embodiments, the number of the third flame outlets 1430 is plural, where "plural" means two or more, that is, the number of the third flame outlets 1430 is at least two. The plural third flame outlets 1430 are arranged at intervals in a ring shape or densely arranged. In addition to the above situation, it can also be that, in some embodiments, the third flame outlet 1430 is in the shape of an annular slit.
[0101] Since the first flame outlet 1410 is farther from the center of the burner 100 than the second flame outlet 1420, when there are plural first flame outlets 1410 and they are arranged in a ring shape, the plural first flame outlets 1410 surround the second flame outlet 1420 (the second flame outlet 1420 can be plural or in the shape of an annular slit). When the first flame outlet 1410 is in the shape of an annular slit, the annular-slit-shaped first flame outlet 1410 surrounds the second flame outlet 1420 (the second flame outlet 1420 can be plural or in the shape of an annular slit). Since the second flame outlet 1420 is farther from the center of the burner 100 than the third flame outlet 1430, when there are plural second flame outlets 1420 and they are arranged in a ring shape, the plural second flame outlets 1420 surround the third flame outlet 1430 (the third flame outlet 1430 can be plural or in the shape of an annular slit). When the second flame outlet 1420 is in the shape of an annular slit, the annular-slit-shaped second flame outlet 1420 surrounds the third flame outlet 1430 (the third flame outlet 1430 can be plural or in the shape of an annular slit).
[0102] The second aspect of the present application discloses a gas stove, which includes the above burner 100. The burner 100 includes a first burner port 1410, a second burner port 1420, and a third burner port 1430. The first burner port 1410 is used for ejecting induced air and gas, the second burner port 1420 is used for ejecting blast air and gas, and the third burner port 1430 is used for ejecting induced air and gas. Moreover, the second burner port 1420 is closer to the center of the burner 100 relative to the first burner port 1410, and the third burner port 1430 is closer to the center of the burner 100 relative to the second burner port 1420.
[0103] The second burner port 1420 is used for ejecting blast air and gas. The blast air provides sufficient oxygen so that the gas ejected from the second burner port 1420 can burn fully. The first burner port 1410 is used for ejecting induced air and gas, and the third burner port 1430 is used for ejecting induced air and gas. The second burner port 1420 is arranged between the first burner port 1410 and the third burner port 1430. When the flame generated by the first burner port 1410 requires secondary air, the excess oxygen generated by the blast air can be provided. When the flame generated by the third burner port 1430 requires secondary air, the excess oxygen generated by the blast air can also be provided. By such an arrangement, finally, the gas ejected from the first burner port 1410, the second burner port 1420, and the third burner port 1430 burns fully, with high combustion efficiency, which is beneficial to the improvement of the thermal efficiency of the gas stove.
[0104] In some embodiments, the gas stove includes a valve body (not shown in the figure). The valve body is used to adjust the gas volume. When the gas supply to the second burner port 1420 is interrupted in the valve body, the valve body can maintain the gas supply to the first burner port 1410 and / or the third burner port 1430. And, at this time, the blower 4000 is still in the working state.
[0105] Specifically, the valve body is a device for adjusting 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. Through the adjustment of the valve body, the gas volume finally leading to the first burner port 1410, the second burner port 1420, and the third burner port 1430 is adjusted. The specific structure of the valve body can refer to the related technology and will not be elaborated in detail here. When the valve body is adjusted until the gas supply to the second burner port 1420 is interrupted, the gas supply to the first burner port 1410 and / or the third burner port 1430 can still be maintained, and at this time, the blower 4000 is also in the working state. Thus, the air (blast air) forcibly conveyed by the blower 4000 is ejected through the second burner port 1420 and supplemented into the gas ejected from the first burner port 1410 and / or the third burner port 1430. It can be understood that the blower 4000 can be started synchronously when the gas stove is ignited. No matter how the valve body is adjusted, the blower 4000 still maintains the running state until the gas stove is extinguished and then the blower 4000 is turned off. Of course, other control logics can also be adopted and will not be elaborated one by one here.
[0106] The third aspect of the present application discloses an integrated appliance. The integrated appliance includes the gas stove of the above embodiments. The so-called integrated appliance is a device that integrates the gas stove and the functions of another traditional appliance. 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 appliances listed above. As long as it can achieve more functions when integrated with the gas stove compared to a single gas stove, it can be regarded as an integrated appliance. It can be understood that the gas stove of the integrated appliance in this embodiment adopts the technical solution of the above embodiment, so it has at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.
[0107] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made under the concept of the present application by using the content of the specification and drawings of the present application, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present application.
Claims
1. A burner (100), characterized in that: include: A first burner (1410) is suitable for spraying fuel gas and induced air; a second burner (1420) adapted to eject fuel gas and blast air, and the second burner (1420) is closer to the center of the burner (100) than the first burner (1410); and The third burner (1430) is suitable for spraying fuel gas and induced air, and the third burner (1430) is closer to the center of the burner (100) relative to the second burner (1420).
2. The burner (100) according to claim 1, characterized in that: The flame generated by the first burner (1410) is suitable for stabilizing the flame of the second burner (1420).
3. The burner (100) according to claim 1 or 2, characterized in that: The first crater (1410) and the second crater (1420) are arranged on a common wall, and the thickness of the wall between the first crater (1410) and the second crater (1420) is not greater than 6 mm.
4. The burner (100) according to claim 1 or 2, characterized in that: The burner (100) comprises a first gas outlet channel (1500), the end of the first gas outlet channel (1500) forms the first burner (1410), and the first gas outlet channel (1500) is provided with at least one first corner (1540) upstream of the first burner (1410); And / or, the burner (100) includes a second air outlet channel (1600), the end of the second air outlet channel (1600) constitutes the second flame port (1420), and the second air outlet channel (1600) is provided with at least one second corner (1640) upstream of the second flame port (1420).
5. The burner (100) according to claim 4, characterized in that: The first gas outlet channel (1500) of the burner (100) comprises a first downstream flow section (1530), the end of the first downstream flow section (1530) forms the first burner (1410), and the first downstream flow section (1530) is inclined from bottom to top away from or toward the center of the burner (100); And / or, the second air outlet channel (1600) of the burner (100) includes a second downstream flow section (1630), the end of the second downstream flow section (1630) constitutes the second flame port (1420), and the second downstream flow section (1630) is inclined from bottom to top away from or toward the center of the burner (100).
6. 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 fire cover (1000) is provided with the first burner port (1410), the second burner port (1420) and the third burner port (1430).
7. The burner (100) according to claim 6, characterized in that The fire cover (1000) comprises: An outer fire cover (1100) is provided with the first fire port (1410) and the second fire port (1420); An inner fire cover (1200) is provided with the third fire port (1430), and the inner fire cover (1200) is surrounded by the outer fire cover (1100); and The middle fire cover (1300) covers the space between the outer fire cover (1100) and the inner fire cover (1200).
8. The burner (100) according to claim 7, characterized in that: The inner fire cover (1200) and the middle fire cover (1300) are connected and fixed; and / or, the inner fire cover (1200) is disposed at the center of the burner (100); And / or, the inner fire cover (1200) is a porous ceramic plate.
9. The burner (100) according to claim 7, characterized in that: The top surface of the medium fire cover (1300) is a plane; and / or, the top surface of the medium fire cover (1300) constitutes the top surface of the fire cover (1000); And / or, the middle fire cover (1300) is suitable for being abutted by the inner wall of the outer fire cover (1100) along the radial direction of the burner (100).
10. The burner (100) according to claim 7, characterized in that: The outer fire cover (1100) includes a first outer fire cover (1110), a second outer fire cover (1120) and a third outer fire cover (1130), wherein the first outer fire cover (1110) surrounds the second outer fire cover (1120) and the first fire port (1410) is provided between the first outer fire cover (1110) and the second outer fire cover (1120), the second outer fire cover (1120) surrounds the third outer fire cover (1130) and the second fire port (1420) is provided between the second outer fire cover (1130), and the middle fire cover (1300) is provided between the third outer fire cover (1130) and the inner fire cover (1200) to shield the space between the outer fire cover (1100) and the inner fire cover (1200).
11. The burner (100) according to claim 10, characterized in that The middle fire cover (1300) and the third outer fire cover (1130) are integrally formed.
12. The burner (100) according to claim 6, characterized in that: The furnace head (2000) is provided with a first cavity (2110), a second cavity (2120) and a third cavity (2130); the first burner (1410) is in communication with the first cavity (2110); the second burner (1420) is in communication with the second cavity (2120); and the third burner (1430) is in communication with the third cavity (2130); The burner (100) further comprises a first ejector tube (3100), a second ejector tube (3200) and a third ejector tube (3300); the first ejector tube (3100) is connected to the first cavity (2110) and is suitable for receiving fuel gas and ejected air; the second ejector tube (3200) is connected to the second cavity (2120) and is suitable for receiving fuel gas and blast air; the third ejector tube (3300) is connected to the third cavity (2130) and is suitable for receiving fuel gas and ejected air.
13. The burner (100) according to claim 1, characterized in that: The number of the first burners (1410) is multiple, and the multiple first burners (1410) are arranged alternately in a ring shape and surround the second burner (1420); And / or, the number of the second burners (1420) is multiple, and the multiple second burners (1420) are arranged alternately in a ring shape and surround the third burner (1430); And / or, the number of the third flame ports (1430) is multiple.
14. The burner (100) according to claim 1, characterized in that: The first burner (1410) is in the shape of an annular seam and surrounds the second burner (1420); and / or, the second burner (1420) is in the shape of an annular seam and surrounds the third burner (1430); And / or, the third burner (1430) is in the shape of an annular seam.
15. A gas stove, characterized in that: A burner (100) comprising any one of claims 1 to 14.
16. The gas stove according to claim 15, 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 second burner (1420), the valve body is suitable for maintaining the gas supply to the first burner (1410) and / or the third burner (1430), and the fan (4000) of the gas stove is in working state to provide blowing air.
17. An integrated electrical appliance, characterized in that: Including the gas stove according to claim 15 or 16.