Combustor and gas stove
By arranging a second cavity on the burner head and using a fluid machine to provide blast air, the problem of incomplete fuel combustion is solved and a more efficient combustion effect is achieved.
Patent Information
- Application Number
- CN202422472243.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-12
AI Technical Summary
In existing gas stoves, the replenishment process of primary air and secondary air makes it difficult to achieve full combustion of fuel, and the thermal efficiency needs to be improved.
A second cavity is set on the burner head to form a blast channel. Blast air is provided by a fluid machine and replenished to the flame roots of the inner and outer ring fire holes through the first and second gas transmission channels respectively, thereby realizing active oxygen supplementation.
The combustion efficiency of the gas is improved, the gas combustion completeness of the outer ring and inner ring fire holes is enhanced, and the thermal efficiency is improved.
Smart Images
Figure CN223375795U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of gas stoves, and in particular to a burner and a gas stove. Background Art
[0002] When a gas stove is operating, gas flows through the gas valve and out of the nozzle, becoming high-speed, low-pressure gas that enters the burner. This mixed gas is called primary air, and this mixed gas is ejected from the burner hole and ignited by the ignition device, forming a flame. During the combustion process, ambient air is replenished for a second time, known as secondary air, to ensure combustion. Currently, the primary and secondary air react through the high-speed jet of gas and buoyancy. This replenishment process is very challenging to achieve full combustion of the fuel, and thermal efficiency 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 objectives, the present application discloses a burner, comprising:
[0005] A burner head, the burner head having a first cavity, a second cavity and a third cavity;
[0006] a fire cover, which is arranged on the burner head, and includes an outer ring fire cover, an inner ring fire cover, a first gas transmission channel, and a second gas transmission channel; the outer ring fire cover surrounds the inner ring fire cover, and a sandwich cavity is formed between the outer ring fire cover and the inner ring fire cover; the outer ring fire cover is provided with an outer ring fire hole communicating with the first cavity; the inner ring fire cover is provided with an inner ring fire hole communicating with the third cavity and opening toward the sandwich cavity; the outer ring fire hole is higher than the inner ring fire hole; the first gas transmission channel communicates with the second cavity and the sandwich cavity; the second gas transmission channel communicates with the second cavity, and a gas outlet end of the second gas transmission channel is higher than the inner ring fire hole; and
[0007] The fluid machine is adapted to provide blast air to the second cavity.
[0008] In some embodiments of the present application, the gas outlet end of the first gas transmission channel is lower than the inner ring fire hole.
[0009] In some embodiments of the present application, the first gas transmission channel is provided between the outer ring fire cover and the inner ring fire cover.
[0010] In some embodiments of the present application, the first gas transmission channel is in the shape of an annular gap.
[0011] In some embodiments of the present application, the gas outlet end of the second gas transmission channel is away from the center of the fire cover and opens toward the direction where the outer ring fire hole is located.
[0012] In some embodiments of the present application, there are multiple second gas delivery channels, and the multiple second gas delivery channels are alternately arranged along a direction surrounding the center of the fire cover.
[0013] In some embodiments of the present application, the second gas supply channel includes interconnected gas supply holes and gas supply annular gaps, and the number of the gas supply holes is multiple. The multiple gas supply holes are arranged alternately along the direction surrounding the center of the fire cover and are connected to the second cavity. The gas supply annular gaps extend along the direction surrounding the center of the fire cover to form the gas outlet end of the second gas supply channel.
[0014] In some embodiments of the present application, the inner ring fire cover is provided with the second gas transmission channel.
[0015] In some embodiments of the present application, there are multiple inner ring fire holes, and the gas supply holes of the second gas supply channel and the inner ring fire holes are alternately arranged along the circumference of the inner ring fire cover.
[0016] In some embodiments of the present application, the outer ring fire holes and / or the inner ring fire holes are arranged obliquely from bottom to top away from the center of the fire cover.
[0017] In some embodiments of the present application, the burner further includes an ignition needle and a sensing needle, the tip of the ignition needle is disposed in the clamping cavity, and the tip of the sensing needle is disposed in the clamping cavity.
[0018] In some embodiments of the present application, the inner ring fire cover is suitable for shielding the ignition needle and the sensing needle from top to bottom, and the outer ring fire cover is suitable for shielding the ignition needle and the sensing needle from outside to inside.
[0019] In some embodiments of the present application, the fluid machine and the furnace head are connected and fixed.
[0020] In some embodiments of the present application, the first cavity is suitable for receiving fuel gas and induced air, and the second cavity is suitable for receiving fuel gas and induced air.
[0021] The second aspect of the present application further discloses a gas stove, which includes the burner mentioned above.
[0022] The technical solution of the present application forms a blast channel by arranging a second cavity on the burner head. The blast air can enter the second cavity and flow out from the first gas supply channel and the second gas supply channel respectively. The blast air flowing out of the first gas supply channel can be supplemented to the flame root of the inner ring fire hole, and the blast air flowing out of the second gas supply channel can be supplemented to the flame root of the outer ring fire hole. The supplementation of blast air is generated by the power generated by fluid machinery, which can more actively realize oxygen supplementation, so that the combustion of the gas ejected from the outer ring fire hole and the inner ring fire hole is more complete, which is beneficial to improving thermal efficiency.
[0023] Other advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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.
[0025] Figure 1 Schematic diagram of a burner in some embodiments;
[0026] Figure 2 Schematic diagram of burner in some embodiments (viewing angle and Figure 1 different);
[0027] Figure 3 An exploded view of a burner in some embodiments;
[0028] Figure 4 A cross-sectional view of a burner in some embodiments;
[0029] Figure 5 for Figure 4 The enlarged view marked A in FIG;
[0030] Figure 6 The cross-sectional view of the burner in some embodiments (cross section and Figure 4 Consistent, perspective and Figure 4 different);
[0031] Figure 7 for Figure 6 The enlarged image marked as B in the figure;
[0032] Figure 8 The cross-sectional view of the burner in some embodiments (cross section and Figure 4 different);
[0033] Figure 9 for Figure 8 The enlarged image marked as C in the figure;
[0034] Figure 10 The cross-sectional view of the burner in some embodiments (cross section and Figure 4 、 Figure 8 different);
[0035] Figure 11 for Figure 10 The enlarged image marked with D in the figure;
[0036] Figure 12 Schematic diagram of the inner ring fire cover in some embodiments;
[0037] Figure 13 Schematic diagram of the inner ring fire cover in some embodiments (viewing angle and Figure 12 different);
[0038] Figure 14 A cross-sectional view of an inner ring fire cover in some embodiments;
[0039] Figure 15 The inner ring fire cover cross-sectional view (cross section and Figure 14 different).
[0040] Description of Figure Numbers:
[0041] Burner head 1000, first cavity 1100, second cavity 1200, third cavity 1300, fire cover 2000, outer ring fire cover 2100, outer ring fire hole 2110, inner ring fire cover 2200, inner ring fire hole 2210, first gas transmission channel 2300, gas outlet end 2330 of the first gas transmission channel, second gas transmission channel 2400, gas hole 2410, gas transmission annular gap 2420, gas outlet end 2430 of the second gas transmission channel, clamping cavity 2500, fluid machinery 3000, ignition needle 4100, induction needle 4200, first ejector tube 5100, third ejector tube 5300.
[0042] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0043] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0044] 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 various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0045] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0046] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. 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.
[0047] The first aspect of the present application discloses a burner, Figures 1 to 7As shown, in some embodiments, the burner includes a burner head 1000, a fire cover 2000 and a fluid machine 3000, the burner head 1000 has a first cavity 1100, a second cavity 1200 and a third cavity 1300, the fire cover 2000 is covered on the burner head 1000, the fire cover 2000 has an outer ring fire cover 2100, an inner ring fire cover 2200, a first gas transmission channel 2300 and a second gas transmission channel 2400, the outer ring fire cover 2100 surrounds the inner ring fire cover 2200, a sandwich cavity 2500 is formed between the outer ring fire cover 2100 and the inner ring fire cover 2200, the outer ring fire cover 2100 is provided with an outer ring fire hole 2110, the outer ring fire hole 2110 and the first cavity 1 100 is connected, the inner ring fire hole 2210 is provided with an inner ring fire hole 2210, the inner ring fire hole 2210 is connected with the third cavity 1300 and the inner ring fire hole 2210 is open toward the clamping cavity 2500, the outer ring fire hole 2110 is higher than the inner ring fire hole 2210, the first gas transmission channel 2300 is connected with the second cavity 1200 and the clamping cavity 2500, the second gas transmission channel 2400 is connected with the second cavity 1200, and the gas outlet end 2430 of the second gas transmission channel 2400 is higher than the inner ring fire hole 2210, the fluid machinery 3000 is used to generate blast air, the blast air is passed into the second cavity 1200, and is discharged from the first gas transmission channel 2300 and the second gas transmission channel 2400.
[0048] In this embodiment, a second cavity 1200 is provided on the burner head 1000 to form a blast channel. The blast air can enter the second cavity 1200 and flow out from the first gas supply channel 2300 and the second gas supply channel 2400 respectively. The blast air flowing out of the first gas supply channel 2300 can be supplemented to the flame root of the inner ring fire hole 2210, and the blast air flowing out of the second gas supply channel 2400 can be supplemented to the flame root of the outer ring fire hole 2110. The supplement of blast air is generated by the power generated by the fluid machinery 3000, which can more actively realize oxygen supplementation, so that the combustion of the gas ejected from the outer ring fire hole 2110 and the inner ring fire hole 2210 is more complete, which is beneficial to improving thermal efficiency.
[0049] Specifically, the burner head 1000 can be an integrally formed structure, or can be formed by connecting separate components. The burner head 1000 includes a first cavity 1100, a second cavity 1200, and a third cavity 1300. Figure 3 As shown in the burner 1000, the first cavity 1100 surrounds the second cavity 1200, the second cavity 1200 surrounds the third cavity 1300, the first cavity 1100 and the second cavity 1200 are arranged with a common wall, and the second cavity 1200 and the third cavity 1300 are arranged with a common wall, which is conducive to reducing the structural complexity of the burner 1000.
[0050] The fire cover 2000 includes an outer ring fire cover 2100 and an inner ring fire cover 2200. The outer ring fire cover 2100 surrounds the inner ring fire cover 2200, and a sandwich cavity 2500 is formed between the outer ring fire cover 2100 and the inner ring fire cover 2200. The outer ring fire cover 2100 is provided with an outer ring fire hole 2110, and the inner ring fire cover 2200 is provided with an inner ring fire hole 2210, and the inner ring fire hole 2210 is open toward the sandwich cavity 2500. When the fire cover 2000 is covered on the burner head 1000, the outer ring fire cover 2100 encloses the first cavity 1100, and the inner ring fire cover 2200 encloses the third cavity 1300. The outer ring fire hole 2110 is communicated with the first cavity 1100, and the inner ring fire hole 2210 is communicated with the third cavity 1300. It is understood that the outer ring fire holes 2110 and inner ring fire holes 2210 herein should be understood as structures for gas outflow, and may be shaped like holes, slits, or the like. For example, the outer ring fire holes 2110 in the accompanying drawings are shaped like an annular slit, while the inner ring fire holes 2210 are shaped like holes. After the gas enters the first chamber 1100, it is ejected from the outer ring fire holes 2110 and ignites to form a flame. Similarly, after the gas enters the third chamber 1300, it is ejected from the inner ring fire holes 2210 toward the sandwich chamber 2500 and ignites to form a flame (the flame may float out of the sandwich chamber 2500). To improve the combustion efficiency of the gas ejected from the fire cover 2000, forced blast air is added through the fluid machinery 3000.
[0051] The fluid machinery 3000 is a machine that uses fluid as a working medium for energy conversion. For example, the fluid machinery 3000 is a fan. The action of the fluid machinery 3000 can forcibly provide blast air, and the blast air is introduced into the second cavity 1200. The fire cover 2000 also has a first gas transmission channel 2300 and a second gas transmission channel 2400. The first gas transmission channel 2300 connects the second cavity 1200 and the clamping cavity 2500, that is, one end of the first gas transmission channel 2300 is connected to the second cavity 1200, and the other end of the first gas transmission channel 2300 is connected to the clamping cavity 2500. The blast air entering the second cavity 1200 can flow along the first gas transmission channel 2300 and enter the clamping cavity 2500, thereby replenishing the flame root of the inner ring fire hole 2210 and improving the combustion efficiency of the gas ejected from the inner ring fire hole 2210. The second gas supply channel 2400 is connected to the second cavity 1200 and the gas outlet end 2430 of the second gas supply channel 2400 is higher than the inner ring fire hole 2210, that is, one end of the second gas supply channel 2400 is connected to the second cavity 1200, and the other end of the second gas supply channel 2400 constitutes the gas outlet end 2430 and is higher than the inner ring fire hole 2210. The blast air entering the second cavity 1200 can flow along the second gas supply channel 2400 and be discharged from the gas outlet end 2430 of the second gas supply channel 2400. Since the outer ring fire hole 2110 is higher than the inner ring fire hole 2210, the gas outlet end 2430 of the second gas supply channel 2400 is higher than the inner ring fire hole 2210. Therefore, the blast air discharged from the second gas supply channel 2400 can be replenished to the flame root of the outer ring fire hole 2110. With this arrangement, the first gas supply channel 2300 supplies blast air to the flames of the inner ring fire holes 2210, while the second gas supply channel 2400 supplies blast air to the flames of the outer ring fire holes 2110. This achieves targeted blast air supply, improves secondary air utilization, and achieves efficient combustion. The fluid machine 3000 can be directly connected to the burner head 1000, facilitating coordination with the second chamber 1200 and providing blast air directly to the second chamber 1200.
[0052] The following is further explained by taking the example of the induced air and gas being ejected from the outer ring fire holes 2110 and the induced air and gas being ejected from the inner ring fire holes 2210 .
[0053] The induced air and gas enter the first chamber 1100 and are then ejected from the first chamber 1100 through the outer ring fire holes 2110, where they are ignited to form a flame. The gas originates from bottled liquefied gas or pipeline natural gas. The gas is ejected from the nozzle and enters the first chamber 1100. During the gas injection process, the air is simultaneously induced. For air induced, see related art. It is generally based on the Venturi principle. For example, the burner is provided with a first ejector tube 5100 connected to the first chamber 1100. The gas is injected toward the first ejector tube 5100. During the gas injection process, a negative pressure is created in the surrounding environment, causing the surrounding air to be simultaneously induced into the first ejector tube 5100 along with the gas injection (this air that enters through the induced action is the induced air, which is primary air). The induced air and gas flow along the first ejector tube 5100 into the first chamber 1100, where they mix and are then ejected from the outer ring fire holes 2110 and ignited to form a flame.
[0054] Similarly, the air and gas are drawn into the third chamber 1300 and then ejected from the third chamber 1300 through the inner ring fire hole 2210 toward the clamping chamber 2500 , where they are ignited to form a flame. The gas comes from bottled liquefied gas or pipeline natural gas. The gas is ejected from the nozzle and enters the third cavity 1300. During the gas injection process, the air is simultaneously introduced. The introduction of air can be referred to the relevant technology. It is generally based on the Venturi principle. For example, the burner is provided with a third ejector pipe 5300 connected to the third cavity 1300. The gas is aimed at the third ejector pipe 5300 and injected. During the gas injection process, a negative pressure is formed on the surrounding environment, so that the air in the surrounding environment is synchronously introduced into the third ejector pipe 5300 along with the injection of the gas (this part of the air entering through the injection effect is the ejected air, and the ejected air is primary air). The ejected air and the gas enter the third cavity 1300 along the third ejector pipe 5300 and mix, and then are ejected from the inner ring fire hole 2210 toward the clamping cavity 2500 and ignited to form a flame.
[0055] When the induced air ejected from the inner ring fire hole 2210 is insufficient to support the combustion of the gas ejected from the inner ring fire hole 2210, secondary air needs to be supplemented. In this embodiment, a first gas supply channel 2300 is provided, and the first gas supply channel 2300 connects the second chamber 1200 and the clamping chamber 2500, so that the blast air entering the second chamber 1200 can be discharged from the first gas supply channel 2300 and enter the clamping chamber 2500. The blast air can provide enough oxygen to supplement the flame root of the inner ring fire hole 2210 and assist the combustion of the gas ejected from the inner ring fire hole 2210. Compared with supplementing secondary air from the surrounding environment by buoyancy and suction, the forced blast air is more actively supplemented to the flame root of the inner ring fire hole 2210. Such a setting is conducive to the full combustion of the gas ejected from the inner ring fire hole 2210 (in this case, the secondary air in the surrounding environment can still participate in the combustion of the gas ejected from the inner ring fire hole 2210).
[0056] When the induced air ejected from the outer ring fire hole 2110 is insufficient to support the combustion of the gas ejected from the outer ring fire hole 2110, secondary air supplement is required. In this embodiment, the second volume chamber 1200 is connected through the second gas transmission channel 2400, so that the blast air entering the second volume chamber 1200 can be discharged from the second gas transmission channel 2400. Since the gas outlet end 2430 of the second gas transmission channel 2400 is higher than the inner ring fire hole 2210, and the outer ring fire hole 2110 is higher than the inner ring fire hole 2210 (that is, the edge of the end of the outer ring fire hole 2110 is higher than the edge of the end of the inner ring fire hole 2210), the gas outlet end 2430 of the second gas transmission channel 2400 is higher than the inner ring fire hole 2210. ), so that the blast air discharged from the second gas supply channel 2400 can be supplemented to the flame root formed by the outer ring fire hole 2110, and assist the combustion of the gas ejected from the outer ring fire hole 2110. Compared with the secondary air supplemented from the surrounding environment by buoyancy and suction, the forced blast air can provide enough oxygen and more actively supplement to the flame root of the outer ring fire hole 2110. Through such an arrangement, it is beneficial to the full combustion of the gas ejected from the outer ring fire hole 2110 (in this case, the secondary air in the surrounding environment can still participate in the combustion of the gas ejected from the outer ring fire hole 2110).
[0057] Compared with the case where the blast air is supplemented in the form of primary air (the blast air and gas are mixed in the burner and then ejected), the blast air in this embodiment is supplemented in the form of secondary air, which makes it less likely that the flame of the outer ring fire hole 2110 and / or the flame of the inner ring fire hole 2210 will produce flame separation.
[0058] It is understood that the ignition of the gas needs to be achieved through the ignition needle 4100. The tip of the ignition needle 4100 is set in the clamping cavity 2500, thereby igniting the gas in the clamping cavity 2500. The ignition of the ignition needle 4100 is to emit an electric spark to ignite the gas. In this embodiment, the tip of the ignition needle 4100 can be designed to be located in the exhaust path of the inner ring fire hole 2210. This facilitates ignition in the clamping cavity 2500, and then transmits the flame to the outer ring fire hole 2110 to ignite the gas ejected from the outer ring fire hole 2110. Similarly, the maintenance of the burner combustion state needs to be achieved by sensing the flame through the induction needle 4200. The tip of the induction needle 4200 is set in the clamping cavity 2500, thereby sensing the flame in the clamping cavity 2500. The tip of the induction needle 4200 can be designed to be located in the exhaust path of the inner ring fire hole 2210 to facilitate flame sensing. The number of inner ring fire holes 2210 in the drawings is multiple, meaning two or more, and the multiple inner ring fire holes 2210 are arranged along the circumference of the inner ring fire cover 2200. By arranging the tips of the ignition needle 4100 and the sensing needle 4200 in the clamping cavity 2500, the outer ring fire cover 2100 and the inner ring fire cover 2200 also protect the ignition needle 4100 and the sensing needle 4200, reducing the probability of the ignition needle 4100 and the sensing needle 4200 being knocked against by external factors.
[0059] Combine Figures 4 to 7 As shown, in some embodiments, the gas outlet end 2330 of the first gas transmission channel 2300 is lower than the inner ring fire hole 2210. It is understood that the flame formed by the inner ring fire hole 2210 is generated from bottom to top. If the gas outlet end 2330 of the first gas transmission channel 2300 is designed to be lower than the inner ring fire hole 2210, then the blast air discharged from the first gas transmission channel 2300 flows from bottom to top after entering the clamping cavity 2500. When the blast air flows from bottom to top in the clamping cavity 2500, it is easier to contact the flame root of the inner ring fire hole 2210, further improving the efficiency of oxygen supplementation and achieving more complete combustion.
[0060] Combine Figures 3 to 7As shown, in some embodiments, a first gas transmission channel 2300 is provided between the outer ring fire cover 2100 and the inner ring fire cover 2200, that is, the outer ring fire cover 2100 and the inner ring fire cover 2200 cooperate with each other to form the first gas transmission channel 2300, thereby facilitating the formation of the first gas transmission channel 2300. For example, the outer ring fire cover 2100 and the inner ring fire cover 2200 are two separate components. When the fire cover 2000 is disassembled, the outer ring fire cover 2100 can be disassembled first and then the inner ring fire cover 2200, or the inner ring fire cover 2200 can be disassembled first and then the outer ring fire cover 2100. When the outer ring fire cover 2100 and the inner ring fire cover 2200 are assembled to the burner head 1000, they can cooperate with each other to form the first gas transmission channel 2300. Furthermore, the first gas transmission channel 2300 is in the shape of an annular seam, so that gas is sprayed into the clamping cavity 2500 along the direction surrounding the center of the fire cover 2000, thereby increasing the contact area between the flame formed by the inner ring fire hole 2210 in the clamping cavity 2500 and the gas sprayed from the first gas transmission channel 2300, which is more conducive to oxygen replenishment of the flame formed by the inner ring fire hole 2210.
[0061] For example, when the outer ring fire cover 2100 is installed on the burner head 1000, it encloses the first cavity 1100, and when the inner ring fire cover 2200 is installed on the burner head 1000, it encloses the third cavity 1300. At the same time, the outer ring fire cover 2100 and the inner ring fire cover 2200 jointly enclose the second cavity 1200, and the outer ring fire cover 2100 and the inner ring fire cover 2200 cooperate to form a first gas transmission channel 2300. The first gas transmission channel 2300 connects the second cavity 1200 and the clamping cavity 2500. The gap between the outer ring fire cover 2100 and the inner ring fire cover 2200 in the accompanying drawings can be regarded as the first gas transmission channel 2300. At this time, the side of the first gas transmission channel 2300 facing the second cavity 1200 is the air inlet end, and the side facing the clamping cavity 2500 is the air outlet end 2330.
[0062] Combine Figures 4 to 7 As shown, in some embodiments, the air outlet end 2430 of the second air supply channel 2400 is away from the center of the fire cover 2000 and opens toward the direction where the outer ring fire hole 2110 is located, so that the blast air is more accurately delivered toward the direction where the outer ring fire hole 2110 is located, further improving the utilization rate of the secondary air.
[0063] Specifically, the gas outlet end 2430 of the second gas supply channel 2400 is open toward the direction where the outer ring fire hole 2110 is located, that is, the gas outlet end 2430 of the second gas supply channel 2400 is located between the center of the fire cover 2000 and the outer ring fire hole 2110. The gas outlet end 2430 of the second gas supply channel 2400 is closer to the inside than the outer ring fire hole 2110, and the outer ring fire hole 2110 is closer to the outside than the gas outlet end 2430 of the second gas supply channel 2400. The blast air ejected from the gas outlet end 2430 of the second gas supply channel 2400 is ejected outward, so that it can more easily reach the root of the flame of the outer ring fire hole 2110. It can be understood that the gas outlet end 2430 of the second gas transmission channel 2400 is open toward the direction where the outer ring fire hole 2110 is located. The gas outlet end 2430 of the second gas transmission channel 2400 can be horizontally open toward the direction where the outer ring fire hole 2110 is located, or can be tilted downward toward the direction where the outer ring fire hole 2110 is located, or can be tilted upward toward the direction where the outer ring fire hole 2110 is located. Figure 5 The gas outlet end 2430 of the second gas transmission channel 2400 may be horizontally opened toward the location of the outer ring fire hole 2110 , and the gas outlet end 2430 of the second gas transmission channel 2400 and the outer ring fire hole 2110 are at the same height.
[0064] In some embodiments, there are multiple second gas supply channels 2400, and the multiple second gas supply channels 2400 are arranged alternately along the direction surrounding the center of the fire cover 2000. In this way, the blast air can be discharged through the second gas supply channels 2400 in the direction surrounding the center of the fire cover 2000, increasing the contact area with the gas ejected from the outer ring fire hole 2110, which is more conducive to improving combustion efficiency.
[0065] Of course, you can also use the following solution, combined with Figures 4 to 7 ,as well as Figures 12 to 15As shown, in some embodiments, the second gas delivery channel 2400 includes a gas delivery hole 2410 and a gas delivery annular gap 2420, the gas delivery hole 2410 and the gas delivery annular gap 2420 are connected, the number of the gas delivery holes 2410 is multiple, and multiple means two or more. The multiple gas delivery holes 2410 are arranged alternately along the direction surrounding the center of the fire cover 2000, and the gas delivery annular gap 2420 extends along the direction surrounding the center of the fire cover 2000. One end of the gas delivery hole 2410 is connected to the second cavity 1200 and the other end is connected to the gas delivery annular gap 2420 (the gas delivery annular gap 2420 is located downstream of the gas delivery hole 2410). The gas delivery annular gap 2420 constitutes the second gas delivery channel The gas outlet end 2430 of 2400 and the gas supply annular gap 2420 are open structures. The blast air entering the second cavity 1200 can flow through the gas supply hole 2410 and the gas supply annular gap 2420 in sequence after entering the second gas supply channel 2400, and finally be discharged from the gas supply annular gap 2420 and replenished to the flame root of the outer ring fire hole 2110. Since the gas supply annular gap 2420 extends in the direction surrounding the center of the fire cover 2000, the blast air can form a continuous airflow in the direction surrounding the center of the fire cover 2000. Compared with the previous scheme, it is more conducive to increasing the contact area with the gas ejected from the outer ring fire hole 2110, thereby further improving the combustion efficiency.
[0066] The second gas transmission channel 2400 can be located in either the outer ring fire cover 2100 or the inner ring fire cover 2200. In this embodiment, the second gas transmission channel 2400 is located in the inner ring fire cover 2200. When the gas outlet end 2430 of the second gas transmission channel 2400 faces away from the center of the fire cover 2000 and opens toward the location of the outer ring fire hole 2110, the second gas transmission channel 2400 has sufficient space to extend from the inner ring fire cover 2200 toward the location of the outer ring fire hole 2110 and open. When there are multiple second gas transmission channels 2400, the multiple second gas transmission channels 2400 are arranged alternately along the circumference of the inner ring fire cover 2200. When the second gas transmission channel 2400 includes gas transmission holes 2410 and gas transmission annular gaps 2420, the multiple gas transmission holes 2410 are arranged alternately along the circumference of the inner ring fire cover 2200, and the gas transmission annular gaps 2420 extend along the circumference of the inner ring fire cover 2200.
[0067] Combine Figure 7 and Figure 13As shown, in some embodiments, the number of inner ring fire holes 2210 is multiple, and multiple means two or more. The multiple inner ring fire holes 2210 are arranged alternately along the circumference of the inner ring fire cover 2200. When the second gas supply channel 2400 includes a gas supply annular seam 2420 and multiple gas supply holes 2410, the multiple gas supply holes 2410 are arranged alternately along the circumference of the inner ring fire cover 2200, and the gas supply holes 2410 and the inner ring fire holes 2210 are alternately arranged. In this way, the inner ring fire cover 2200 can form a flame in the circumferential direction and discharge blast air toward the direction where the outer ring fire hole 2110 is located.
[0068] Further, combined with Figures 8 to 11 as well as Figure 14 As shown, in some embodiments, the inner ring fire hole 2210 is tilted from bottom to top away from the center of the fire cover 2000. It can be understood that after the gas enters the third cavity 1300, it flows from bottom to top. The inner ring fire hole 2210 is tilted from bottom to top away from the center of the fire cover 2000, which makes it easier for the gas to enter the third cavity 1300 and flow into the inner ring fire hole 2210 and be discharged to the clamping cavity 2500.
[0069] Combine Figure 4 and Figure 5 As shown, in some embodiments, the outer ring fire holes 2110 are tilted from bottom to top, away from the center of the fire cover 2000, which facilitates the formation of a wide range of fire. Optionally, the outer ring fire holes 2110 are annular, for example, circular, so that gas is ejected along the circumference of the outer ring fire cover 2100. In this way, the flame formed by the clamping cavity 2500 can increase the contact area between the gas ejected from the annular outer ring fire holes 2110, which is conducive to improving the success rate of fire transfer.
[0070] Furthermore, in some embodiments, along the radial direction of the fire cover 2000, the outer ring fire cover 2100 blocks the ignition needle 4100 and the sensing needle 4200 from the outside to the inside. The so-called "from the outside to the inside" means that along the radial direction of the fire cover 2000, from the direction away from the center of the fire cover 2000 toward the center of the fire cover 2000, and along the axial direction of the fire cover 2000, the inner ring fire cover 2200 blocks the ignition needle 4100 and the sensing needle 4200 from top to bottom. By such an arrangement, the ignition needle 4100 and the sensing needle 4200 are hidden, further improving the protection performance of the ignition needle 4100 and the sensing needle 4200, effectively preventing the tip of the ignition needle 4100 and the tip of the sensing needle 4200 from being contaminated, thereby ensuring the sensitivity of use. It is understandable that in some embodiments, a single needle is used to achieve the ignition function and the fire sensing function. Such a single needle can be regarded as including the ignition needle 4100 and the sensing needle 4200, such as an ion ignition sensing needle. In particular, when the air outlet end 2430 of the second air supply channel 2400 is away from the center of the fire cover 2000 and is open toward the direction where the outer ring fire hole 2110 is located, it is beneficial to both shield the ignition needle 4100 and the sensing needle 4200 and to deliver blast air toward the direction where the outer ring fire hole 2110 is located.
[0071] The second aspect of the present application discloses a gas stove, Figures 1 to 15 As shown, the gas stove includes a burner, which includes a burner head 1000, a fire cover 2000 and a fluid machine 3000. The burner head 1000 has a first cavity 1100, a second cavity 1200 and a third cavity 1300. The fire cover 2000 is covered on the burner head 1000. The fire cover 2000 has an outer ring fire cover 2100, an inner ring fire cover 2200, a first gas transmission channel 2300 and a second gas transmission channel 2400. The outer ring fire cover 2100 surrounds the inner ring fire cover 2200, and a sandwich cavity 2500 is formed between the outer ring fire cover 2100 and the inner ring fire cover 2200. The outer ring fire cover 2100 is provided with an outer ring fire hole 2110. The outer ring fire hole 2110 is connected to the first cavity 1 100 is connected, the inner ring fire hole 2210 is provided with an inner ring fire hole 2210, the inner ring fire hole 2210 is connected with the third cavity 1300 and the inner ring fire hole 2210 is open toward the clamping cavity 2500, the outer ring fire hole 2110 is higher than the inner ring fire hole 2210, the first gas transmission channel 2300 is connected with the second cavity 1200 and the clamping cavity 2500, the second gas transmission channel 2400 is connected with the second cavity 1200, and the gas outlet end 2430 of the second gas transmission channel 2400 is higher than the inner ring fire hole 2210, the fluid machinery 3000 is used to generate blast air, the blast air is passed into the second cavity 1200, and is discharged from the first gas transmission channel 2300 and the second gas transmission channel 2400.
[0072] In this embodiment, a second cavity 1200 is provided on the burner head 1000 to form a blast channel. Blast air can enter the second cavity 1200 and flow out from the first gas supply channel 2300 and the second gas supply channel 2400, respectively. The blast air flowing out of the first gas supply channel 2300 can replenish the flame root of the inner ring fire hole 2210, and the blast air flowing out of the second gas supply channel 2400 can replenish the flame root of the outer ring fire hole 2110. The replenishment of blast air is generated by the power generated by the fluid machine 3000, which can more actively achieve oxygen replenishment, thereby ensuring more complete combustion of the gas ejected from the outer ring fire hole 2110 and the inner ring fire hole 2210, which is conducive to improving thermal efficiency. It can be understood that the burner of the gas stove of this embodiment adopts the technical solution of the above-mentioned embodiment, and therefore has at least the beneficial effects brought about by the technical solution of the above-mentioned embodiment, which will not be repeated here.
[0073] 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 transformations made based on the contents of the present application specification 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, characterized in that: include: A furnace head (1000), wherein the furnace head (1000) has a first cavity (1100), a second cavity (1200), and a third cavity (1300); A fire cover (2000) is provided on the burner head (1000), the fire cover (2000) comprising an outer ring fire cover (2100), an inner ring fire cover (2200), a first gas transmission channel (2300) and a second gas transmission channel (2400), the outer ring fire cover (2100) surrounds the inner ring fire cover (2200) and a sandwich cavity (2500) is formed between the outer ring fire cover (2100) and the inner ring fire cover (2200), the outer ring fire cover (2100) is provided with an outer ring fire hole (2110) communicating with the first cavity (1100), The inner ring fire cover (2200) is provided with an inner ring fire hole (2210) that is in communication with the third cavity (1300) and opens toward the clamp cavity (2500); the outer ring fire hole (2110) is higher than the inner ring fire hole (2210); the first gas transmission channel (2300) is in communication with the second cavity (1200) and the clamp cavity (2500); the second gas transmission channel (2400) is in communication with the second cavity (1200), and the gas outlet end (2430) of the second gas transmission channel (2400) is higher than the inner ring fire hole (2210); and The fluid machine (3000) is adapted to provide blast air to the second chamber (1200).
2. The burner according to claim 1, wherein The gas outlet end (2330) of the first gas transmission channel (2300) is lower than the inner ring fire hole (2210).
3. The burner according to claim 1, wherein The first gas transmission channel (2300) is provided between the outer ring fire cover (2100) and the inner ring fire cover (2200).
4. The burner according to claim 3, characterized in that The first gas transmission channel (2300) is in the shape of an annular gap.
5. The burner according to claim 1, wherein The gas outlet end (2430) of the second gas transmission channel (2400) is away from the center of the fire cover (2000) and is open toward the direction where the outer ring fire hole (2110) is located.
6. The burner according to claim 5, characterized in that There are multiple second gas delivery channels (2400), and the multiple second gas delivery channels (2400) are arranged alternately along a direction surrounding the center of the fire cover (2000).
7. The burner according to claim 5, characterized in that The second gas transmission channel (2400) includes a plurality of gas transmission holes (2410) and a gas transmission annular gap (2420) that are connected to each other. The plurality of gas transmission holes (2410) are arranged alternately along a direction surrounding the center of the fire cover (2000) and are connected to the second cavity (1200). The gas transmission annular gap (2420) extends along a direction surrounding the center of the fire cover (2000) to form a gas outlet end (2430) of the second gas transmission channel (2400).
8. The burner according to any one of claims 1 to 7, characterized in that The inner ring fire cover (2200) is provided with the second gas transmission channel (2400).
9. The burner according to claim 8, characterized in that There are a plurality of inner ring fire holes (2210), and the gas delivery holes (2410) of the second gas delivery channel (2400) and the inner ring fire holes (2210) are alternately arranged along the circumference of the inner ring fire cover (2200).
10. The burner according to claim 1, wherein The outer ring fire holes (2110) and / or the inner ring fire holes (2210) are arranged obliquely from bottom to top away from the center of the fire cover (2000).
11. The burner according to claim 1, wherein The burner further comprises an ignition needle (4100) and a sensing needle (4200), wherein the tip of the ignition needle (4100) is arranged in the clamping cavity (2500), and the tip of the sensing needle (4200) is arranged in the clamping cavity (2500).
12. The burner according to claim 11, wherein The inner ring fire cover (2200) is suitable for shielding the ignition needle (4100) and the sensing needle (4200) from top to bottom, and the outer ring fire cover (2100) is suitable for shielding the ignition needle (4100) and the sensing needle (4200) from outside to inside.
13. The burner according to claim 1, wherein The fluid machinery (3000) and the furnace head (1000) are connected and fixed.
14. The burner according to claim 1, wherein The first cavity (1100) is suitable for receiving fuel gas and induced air, and the second cavity (1200) is suitable for receiving fuel gas and induced air.
15. A gas stove, characterized in that: A burner comprising the burner according to any one of claims 1 to 14.