Combustor

Abstract

The utility model discloses a burner which comprises a fire distributor, the fire distributor is provided with an outer ring fire groove, a gas supplementing groove, an inner ring fire groove and a central channel, the outer ring fire groove, the gas supplementing groove, the inner ring fire groove and the central channel are sequentially arranged from outside to inside, the bottom of the gas supplementing groove penetrates through the bottom face of the fire distributor, and the central channel penetrates through the bottom face of the fire distributor. A first supporting column is arranged on the bottom surface of the fire distributor; an outer ring injection seat and an inner ring injection seat are arranged on the furnace end, the outer ring injection seat is communicated with the outer ring fire groove, the inner ring injection seat is communicated with the inner ring fire groove, a second supporting column is arranged on the upper surface of the furnace end, and when the fire distributor is connected with the furnace end, the first supporting column is supported on the second supporting column; an air supply gap communicated with the air supply groove is formed between the lower surface of the fire distributor and the upper surface of the furnace end; and a gas pipe of the stove is communicated with the outer ring injection seat, the inner ring injection seat and the central channel. The combustor provided by the utility model can supplement air for combustion of fuel gas, and can ensure that the fuel gas is fully combusted during stir-frying.

Description

TECHNICAL FIELD

[0001] The utility model relates to a stove technical field, specifically, relate to a kind of combustor. BACKGROUND

[0002] The existing combustor, the explosive stir-frying function is by injection pipe, to inner ring fire groove supplementary gas, improve the gas supply of inner ring fire groove, but when carrying out explosive stir-frying operation, there is no additional air to supplement, although gas is sufficient, but air is not sufficient, it can appear the problem of insufficient combustion. SUMMARY

[0003] The utility model discloses a kind of combustor, it is used to solve above-mentioned technical problem.

[0004] Combustor includes fire divider, it has outer ring fire groove, air supply groove, inner ring fire groove and center passage, outer ring fire groove, air supply groove, inner ring fire groove and center passage are sequentially arranged from outside to inside, the bottom of air supply groove penetrates the bottom surface of fire divider, center passage penetrates the bottom surface of fire divider, first support column is equipped on the bottom surface of fire divider;

[0005] Burner, outer ring injection seat and inner ring injection seat are equipped on it, outer ring injection seat is communicated with outer ring fire groove, inner ring injection seat is communicated with inner ring fire groove, the upper surface of burner is equipped with second support column, when fire divider is connected with burner, first support column is supported on second support column, the upper surface of burner and the upper surface of burner form air supply gap communicated with air supply groove between the lower surface of fire divider and the upper surface of burner;

[0006] Among them, the gas pipe of stove is communicated with outer ring injection seat, inner ring injection seat and center passage.

[0007] According to an embodiment of the utility model, burner is equipped with center through hole, center through hole is in alignment with center passage, and the gas pipe of stove passes through center through hole and enters center passage.

[0008] According to an embodiment of the utility model, fire divider is equipped with outer ring air inlet passage and inner ring air inlet passage, the air inlet end of outer ring air inlet passage is opposite to the air outlet end of outer ring injection seat, the air outlet end of outer ring air inlet passage is communicated with outer ring fire groove, the air inlet end of inner ring air inlet passage is opposite to the air outlet end of inner ring injection seat, and the air outlet end of inner ring air inlet passage is communicated with inner ring fire groove.

[0009] According to an embodiment of the utility model, the bottom surface of fire divider includes outer ring bottom surface as the bottom of outer ring fire groove and inner ring bottom surface as the bottom of inner ring fire groove, and the outer ring bottom surface and the inner ring bottom surface are connected by outer ring air inlet passage and / or inner ring air inlet passage.

[0010] According to an embodiment of the utility model, still include outer ring air supplement channel, outer ring ejection seat is equipped with outer ring air supplement ejection seat, between outer ring ejection seat and outer ring air supplement ejection seat there is by -pass channel, the gas pipe of stove is connected with the air inlet end of outer ring ejection seat, the air inlet end of by -pass channel is connected with the air inlet end of outer ring ejection seat, the air outlet end of by -pass channel is connected with the air inlet end of outer ring air supplement ejection seat, the air outlet end of outer ring air supplement ejection seat is opposite the air inlet end of outer ring air supplement channel, and the air outlet end of outer ring air supplement channel is connected with outer ring fire groove.

[0011] According to an embodiment of the utility model, the part of the outer ring bottom surface of the bottom of the outer ring fire groove and the outer ring air inlet channel and the inner ring air inlet channel is aligned and is provided with a support surface, and the outer ring ejection seat and the inner ring ejection seat are supported by the support surface.

[0012] According to an embodiment of the utility model, an electromagnetic valve is arranged on the outer ring air supplement ejection seat, and the electromagnetic valve opens or closes the communication end of the by-pass channel and the outer ring air supplement ejection seat.

[0013] According to an embodiment of the utility model, the outer ring air inlet channel and the outer ring air supplement channel are symmetrically arranged, the bottom of the outer ring fire groove is an outer ring bottom surface, the outer ring bottom surface is downwardly sunken to form two air sink grooves, and the air outlet ends of the outer ring air inlet channel and the outer ring air supplement channel are arranged opposite to the two air sink grooves, respectively.

[0014] According to an embodiment of the utility model, the outer ring fire cover and the inner ring fire cover are further arranged, the outer ring fire cover is arranged on the outer ring fire groove, the outer ring fire cover is provided with an outer ring fire hole, the inner ring fire cover covers the inner ring fire groove and the center channel at the same time, the side surface of the inner ring fire cover is provided with an inner ring fire hole, and the top surface of the inner ring fire cover is further provided with a center fire hole, which is aligned with the center channel.

[0015] According to an embodiment of the utility model, the lower surface edge of the burner head is provided with a third support column, and the third support column is supported in the shell of the stove.

[0016] Compared with the prior art, the burner has at least the following advantages:

[0017] The burner of the utility model, through setting the center channel and the air supplement groove penetrating the bottom surface of the fire divider, and setting the air supplement gap communicating the center channel between the lower surface of the fire divider and the upper surface of the burner head, air is supplemented for the combustion of the gas in the outer ring fire groove, the inner ring fire groove and the center channel during cooking, and when the explosive frying operation is performed, the gas pipe of the stove introduces the gas into the center channel, when the gas enters the center channel, the air in the air supplement gap enters the center channel, so that the supplemented gas and air are fully mixed, and the gas combustion can be ensured to be sufficient during explosive frying.

[0018] The burner of this invention forms a dual gas channel by setting an outer ring gas supply channel and an outer ring gas intake channel, so as to make the gas evenly dispersed and to make the gas fully combusted by utilizing the dispersion of the gas. By setting a solenoid valve on the outer ring gas supply ejector, the amount of gas flowing from the outer ring ejector to the outer ring gas supply ejector through the bypass channel can be controlled by opening or closing the solenoid valve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the burner structure of this utility model;

[0020] Figure 2 This is an exploded view of the burner structure of this utility model;

[0021] Figure 3 This is a structural diagram of the installation of the outer and inner ring burner caps of the burner of this utility model;

[0022] Figure 4 This is a top view of the burner distributor of the present invention;

[0023] Figure 5 This is a bottom view of the burner distributor of the present invention;

[0024] Figure 6 This is a schematic diagram of the burner head structure of the burner of this utility model;

[0025] Figure 7 This is a partial cross-sectional view of the burner head of the present invention.

[0026] In the diagram: 1. Flame distributor; a. Outer ring bottom surface; a1. Gas sink groove; a2. Support surface; b. Inner ring bottom surface; 11. Outer ring flame groove; 12. Gas supply groove; 13. Inner ring flame groove; 14. Central channel; 15. First support column; 16. Outer ring air intake channel; 17. Inner ring air intake channel; 18. Outer ring gas supply channel; 2. Burner head; 21. Outer ring ejector seat; 22. Inner ring ejector seat; 23. Second support column; 24. Central through hole; 25. Outer ring gas supply ejector seat; 26. Bypass channel; 27. Third support column; 3. Outer ring burner cap; 31. Outer ring burner hole; 4. Inner ring burner cap; 41. Inner ring burner hole; 42. Central burner hole.

[0027] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The embodiments of the present application will be described below with reference to the drawings. To clearly illustrate the technical solutions of the present application, a number of specific details are described in the following description. However, it should be understood that the present application is not limited in scope to the particular details described. That is, the present application is not limited to the specific details described in the following description. Furthermore, well-known structures and components are not described in detail in order to simplify the present application.

[0029] It should be noted that the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship and movement between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0030] In addition, the descriptions such as "first", "second" and the like in the present application are only for the purpose of description, and are not intended to particularly indicate the order or sequence, nor to limit the present application. They are only used to distinguish the components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person skilled in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0031] In order to further understand the content, characteristics and effects of the present application, the following embodiments are exemplified and described in detail as follows in combination with the drawings:

[0032] The present application discloses a burner for a cooking appliance, please refer to Figures 1 to 6 , comprising:

[0033] The burner 1 has an outer ring fire groove 11, a gas supplement groove 12, an inner ring fire groove 13 and a central passage 14. The outer ring fire groove 11, the gas supplement groove 12, the inner ring fire groove 13 and the central passage 14 are arranged from outside to inside. The bottom of the gas supplement groove 12 penetrates the bottom surface of the burner 1, and the central passage 14 penetrates the bottom surface of the burner 1. The bottom surface of the burner 1 is provided with a first support column 15.

[0034] The furnace head 2 is provided with an outer ring injection seat 21 and an inner ring injection seat 22, the outer ring injection seat 21 is communicated with the outer ring fire groove 11, the inner ring injection seat 22 is communicated with the inner ring fire groove 13, the upper surface of the furnace head 2 is provided with a second supporting column 23, when the fire divider 1 is connected with the furnace head 2, the first supporting column 15 is supported on the second supporting column 23, and the lower surface of the fire divider 1 and the upper surface of the furnace head 2 form a gas supplement gap communicated with the gas supplement groove 12;

[0035] The gas pipe of the stove is communicated with the outer ring injection seat 21, the inner ring injection seat 22 and the central channel 14.

[0036] In use, the furnace head 2 is installed on the stove with the function of explosive frying, and the outer ring injection seat 21 and the inner ring injection seat 22 are communicated through the gas pipe; then the fire divider 1 is installed on the furnace head 2, and the outer ring injection seat 21 is communicated with the outer ring fire groove 11, the inner ring injection seat 22 is communicated with the inner ring fire groove 13, and the gas pipe and the central channel 14 are communicated at the same time, at this time, the corresponding first supporting column 15 is supported on the second supporting column 23, so that the fire divider 1 is stably installed, and at the same time, the lower surface of the fire divider 1 and the upper surface of the furnace head 2 form a gas supplement gap communicated with the gas supplement groove 12.

[0037] In the normal cooking process, the gas is introduced into the outer ring fire groove 11 through the outer ring injection seat 21, so that the gas burns in the outer ring fire groove 11 to form an outer ring fire, at the same time, the gas can be introduced into the inner ring fire groove 13 through the inner ring injection seat 22, so that the gas burns in the inner ring fire groove 13 to form an inner ring fire, and the inner ring fire burns inside the outer ring fire. Further, when explosive frying is needed, the gas can be introduced into the central channel 14 through the gas pipe, so that the gas burns in the central channel 14 to form a central fire, and the central fire burns inside the inner ring fire. In this way, in the cooking process, the central channel 14 penetrates the bottom surface of the fire divider 1, air enters the gas supplement groove 12 and the central channel 14 through the gas supplement gap between the lower surface of the fire divider 1 and the upper surface of the furnace head 2 to supplement air for gas combustion, and when explosive frying is performed, the gas pipe of the stove introduces gas into the central channel 14, when the gas enters the central channel 14, the air in the gas supplement gap enters the central channel 14, so that the supplemented gas and air are fully mixed, which can ensure that the gas is fully burned during explosive frying.

[0038] In the embodiment, the outer ring fire groove 11, the gas supplement groove 12, the inner ring fire groove 13 and the central channel 14 are arranged in concentric circles, and the inner diameters of the four are successively reduced, and the gas supplement groove 12 is arranged around the inner ring fire groove 13 and the central channel 14, in the cooking process, air is continuously supplemented from the gas supplement groove 12, which can ensure that the gas in the outer ring fire groove 11 and the inner ring fire groove 13 is fully burned, at the same time, air is continuously supplemented from the central channel 14, which can ensure that the gas in the central channel 14 is fully burned.

[0039] Wherein, the first support column 15 and the second support column 23 are distributed with at least two groups to ensure that the distributor 1 is stably supported. In the figure, the first support column 15 and the second support column 23 are only shown with two groups and are symmetrically distributed with the center of the burner 2.

[0040] The burner of the utility model, please refer to Figure 1 And Figure 2 The burner 2 is provided with a center through hole 24, the center through hole 24 is aligned with the center channel 14, and the gas pipe of the stove passes through the center through hole 24 and enters the center channel 14.

[0041] When the distributor 1 is installed on the burner 2, the gas pipe of the stove passes through the center through hole 24, and the end of the gas pipe extends into the center channel 14 to realize the communication of the gas pipe and the center channel 14. By opening the center through hole 24, it is convenient to install the gas pipe, and the center through hole 24 is aligned with the center channel 14, which can prevent the gas pipe from being bent.

[0042] According to Bernoulli's principle, during the cooking process, when the gas pipe sprays gas into the center channel 14, a low pressure area is formed near the gas outlet end, and the surrounding air is sucked into the center channel 14 under the action of the pressure difference, and is mixed with the gas, thereby ensuring that the gas at the center channel 14 is fully burned.

[0043] The burner of the utility model, please refer to Figure 4 And Figure 5 The distributor 1 is provided with an outer ring gas inlet channel 16 and an inner ring gas inlet channel 17, the gas inlet end of the outer ring gas inlet channel 16 is opposite to the gas outlet end of the outer ring injection seat 21, the gas outlet end of the outer ring gas inlet channel 16 is communicated with the outer ring fire groove 11, the gas inlet end of the inner ring gas inlet channel 17 is opposite to the gas outlet end of the inner ring injection seat 22, and the gas outlet end of the inner ring gas inlet channel 17 is communicated with the inner ring fire groove 13.

[0044] In the embodiment, the gas inlet end of the outer ring gas inlet channel 16 is opposite to the gas outlet end of the outer ring injection seat 21, and the gas inlet end of the inner ring gas inlet channel 17 is opposite to the gas outlet end of the inner ring injection seat 22, that is, the first gap is formed between the gas inlet end of the outer ring gas inlet channel 16 and the outer ring injection seat 21, and the second gap is formed between the gas inlet end of the inner ring gas inlet channel 17 and the gas outlet end of the inner ring injection seat 22, and the first gap and the second gap can be communicated with the air supplement gap formed between the lower surface of the distributor 1 and the upper surface of the burner 2.

[0045] In the normal cooking process, gas is introduced into the outer ring air inlet channel 16 through the outer ring eductor seat 21, so that the gas burns in the outer ring fire trench 11 which is in communication with the outer ring air inlet channel 16, forming an outer ring fire, at the same time, gas can be introduced into the inner ring air inlet channel 17 through the inner ring eductor seat 22, so that the gas burns in the inner ring fire trench 13 which is in communication with the inner ring air inlet channel 17, forming an inner ring fire, which burns inside the outer ring fire. In this process, air is supplied to the first gap and the second gap through the air gap formed between the lower surface of the damper 1 and the upper surface of the burner 2, and air is also supplied to the central channel 14 which penetrates the bottom surface of the damper 1 through the air gap, so that the gas entering the outer ring air inlet channel 16, the inner ring air inlet channel 17 and the central channel 14 is a mixture of air and gas.

[0046] When the gas is ejected at high speed from the gas outlet end of the outer ring eductor seat 21 and the inner ring eductor seat 22, according to Bernoulli's principle, a low pressure area is formed near the corresponding gas outlet end, and the surrounding air is sucked into the mixing channel, i.e. the first gap and the second gap, between the gas inlet end and the gas outlet end, and then enters the corresponding outer ring air inlet channel 16 and inner ring air inlet channel 17 with the gas, realizing preliminary mixing. The provision of the mixing channel provides an initial mixing space for the gas and air, and the air and gas begin to contact and mix in this channel space. Due to the high-speed flow of the gas and the entrainment of the air, a certain degree of turbulence is formed, which enables the gas and air to penetrate and mix more fully, creating good conditions for subsequent full combustion in the combustion chamber; at the same time, the mixing channel provides a margin for the thermal expansion of the components, avoiding excessive stress between the components due to thermal expansion, thereby preventing component deformation, damage or affecting the normal supply of gas.

[0047] On the basis of the above-mentioned embodiments, the air inlet ends of the outer ring air inlet channel 16 and the inner ring air inlet channel 17 are in the form of flared structures to increase the opening area of the respective air inlet ends, so that more air can enter the pipeline under the entraining action of the gas jet, providing sufficient oxygen for the gas to burn fully, so as to achieve better combustion effect; and the air enters the pipeline more smoothly, reducing air flow resistance and turbulence; according to Bernoulli's principle, the low-pressure area formed at the flared portion by the high-speed flow of the gas is more stable, and the air can be more efficiently entrained; at the same time, after the air enters the corresponding pipeline, the flared structure allows the air to have a larger contact area and a longer contact time with the gas, which is conducive to the more uniform mixing of the two, allowing the combustion to be more complete and stable, improving the combustion efficiency and reducing the generation of pollutants, helping to maintain a relatively stable gas and air mixing ratio, making the combustion process closer to the ideal state, improving the performance and stability of the burner, and reducing problems such as incomplete combustion and unstable flame caused by fluctuations in the mixing ratio; and during installation, the flared structure can provide a larger alignment tolerance range, which can compensate for the dimensional errors and positional deviations caused during the manufacturing and installation processes to some extent, so that even if there is a small deviation between the components, the flared structure reduces the installation precision requirement, improves the installation efficiency and accuracy, and also ensures normal gas flow and entraining effect.

[0048] In addition, the inner diameters of the air outlet ends of the outer ring air inlet channel 16 and the inner ring air inlet channel 17 gradually increase, so as to reduce the resistance of the gas when it is discharged, reduce the exhaust back pressure, and make the gas discharge speed relatively stable and moderate, thereby reducing the risk of backfire; the larger diameter of the air outlet end can make the discharged gas flow more stable, reduce the fluctuation and turbulence of the gas flow, and be conducive to the stability of the subsequent combustion process, making the flame more stable and the combustion more uniform, and reducing problems such as incomplete combustion and flickering flame caused by unstable gas flow.

[0049] The burner of the utility model, please refer to Figure 4 and Figure 5 The bottom surface of the burner includes an outer ring bottom surface a as the bottom of the outer ring fire trench 11 and an inner ring bottom surface b as the bottom of the inner ring fire trench 13, and the outer ring bottom surface a and the inner ring bottom surface b are connected by the outer ring air inlet channel 16 and / or the inner ring air inlet channel 17.

[0050] In this embodiment, the outer ring bottom surface a is in the form of a circular ring plate structure, and the inner ring bottom surface b is in the form of a circular plate structure, and the inner diameter of the outer ring bottom surface a is greater than the diameter of the inner ring bottom surface b, so that a gas supplementing space of the communication gas supplementing trench 12 is formed between the outer ring bottom surface a and the inner ring bottom surface b. During cooking, air can enter the gas supplementing trench 12 from the gas supplementing space to supplement air for gas combustion.

[0051] At least one of the outer ring air inlet channel 16 and the inner ring air inlet channel 17 is connected to the outer ring bottom surface a and the inner ring bottom surface b at the same time, so that the outer ring fire groove 11 and the inner ring fire groove 13 are connected to form a whole under the connection of the outer ring air inlet channel 16 and the inner ring air inlet channel 17, and the structural stability of the distributor 1 is ensured. As one of the parallel schemes, any one of the outer ring air inlet channel 16 and the inner ring air inlet channel 17 is connected to the outer ring bottom surface a and the inner ring bottom surface b at the same time; as the second parallel scheme, both the outer ring air inlet channel 16 and the inner ring air inlet channel 17 are connected to the outer ring bottom surface a and the inner ring bottom surface b at the same time.

[0052] The burner of the utility model, please refer to Figures 1 to 7 Further comprising an outer ring air supplement channel 18, the outer ring ejection seat 21 is equipped with an outer ring air supplement ejection seat 25, and the outer ring ejection seat 21 and the outer ring air supplement ejection seat 25 have a bypass channel 26, the gas pipe of the stove is communicated with the air inlet end of the outer ring ejection seat 21, the air inlet end of the bypass channel 26 is communicated with the air inlet end of the outer ring ejection seat 21, the air outlet end of the bypass channel 26 is communicated with the air inlet end of the outer ring air supplement ejection seat 25, and the air outlet end of the outer ring air supplement ejection seat 25 is opposite to the air inlet end of the outer ring air supplement channel 18, and the air outlet end of the outer ring air supplement channel 18 is communicated with the outer ring fire groove 11.

[0053] In the embodiment, the air outlet end of the outer ring air supplement ejection seat 25 is opposite to the air inlet end of the outer ring air supplement channel 18, so that a third gap is formed between the air outlet end of the outer ring air supplement ejection seat 25 and the air inlet end of the outer ring air supplement channel 18, and the third gap is communicated with the air supplement gap.

[0054] During the cooking process, the gas is introduced into the outer ring injection seat 21 through the gas pipe, part of the gas can enter the bypass channel 26 and be sprayed out through the outer ring gas supplement injection seat 25, the gas sprayed out of the gas outlet end of the outer ring gas supplement injection seat 25 enters the outer ring gas supplement channel 18, and then the gas and air are supplemented through the outer ring gas supplement channel 18 towards the outer ring fire groove 11, so that the flame formed in the outer ring fire groove 11 burns more fully. Specifically, when the gas is sprayed out of the gas outlet end of the outer ring gas supplement injection seat 25 at high speed, according to Bernoulli's principle, a low-pressure area is formed near the corresponding gas outlet end, and the surrounding air is sucked into the third gap between the gas outlet end of the outer ring gas supplement injection seat 25 and the outer ring gas supplement channel 18 under the action of the pressure difference, and then enters the corresponding outer ring gas supplement channel 18 together with the gas, realizing preliminary mixing. The third gap provides an initial mixing place for the gas and air, and the air and gas begin to contact and mix in this channel space. Due to the high-speed flow of the gas and the involvement of the air, a certain degree of turbulence is formed, so that the gas and air can more fully penetrate and mix with each other, creating good conditions for subsequent full combustion in the combustion chamber; at the same time, the mixing channel provides a margin for the thermal expansion of the components, avoiding excessive stress between the components due to thermal expansion, thereby preventing component deformation, damage or affecting the normal supply of gas.

[0055] On the basis of the above embodiment, the outer ring gas supplement channel 18 and the outer ring gas inlet channel 16 are symmetrically arranged relative to the center of the distributor 1, and the gas outlet ends of the two channels face the same direction, forming a double gas channel, so that the gas introduced from the outer ring injection seat 21 is divided into two parts and enters the outer ring fire groove 11, so that the gas burns in the outer ring fire groove 11 and forms a uniform flame, and at the same time, the dispersion of the gas improves the full combustion effect of the gas.

[0056] And the structure of the outer ring gas supplement channel 18 and the outer ring gas inlet channel 16 is the same, that is, the gas inlet end of the outer ring gas supplement channel 18 is in an expanded structure to increase the opening area of the gas inlet end, so that more air can enter the pipeline under the injection action of the gas jet, providing sufficient oxygen for the full combustion of the gas, so as to achieve better combustion effect. And the inner diameter of the gas outlet end of the outer ring gas supplement channel 18 gradually increases to reduce the resistance when the gas is discharged, reduce the back pressure of the gas, and make the gas discharge speed relatively stable and moderate, reduce the risk of backfire, and the larger diameter of the gas outlet end can make the discharged gas flow more stable, reduce the fluctuation and turbulence of the gas flow, which is beneficial to the stability of the subsequent combustion process, makes the flame more stable, and the combustion more uniform, reduces the problems of incomplete combustion, flame flickering and the like caused by unstable gas flow.

[0057] The burner of the utility model, please refer to Figure 5 and Figure 6The outer ring bottom surface a of the bottom of the outer ring fire groove 11 and the part of the outer ring gas inlet channel 16 and the inner ring gas inlet channel 17 in alignment is provided with a supporting surface a2, and the outer ring ejection seat 21 and the inner ring ejection seat 22 support the distributor 1 through the supporting surface a2.

[0058] When installing, the distributor 1 is installed on the furnace head 2, the outer ring ejection seat 21 and the inner ring ejection seat 22 simultaneously support the distributor 1 through the supporting surface a2 to ensure stable installation of the distributor 1, the gas outlet end of the outer ring ejection seat 21 is opposite to the gas inlet end of the outer ring gas inlet channel 16, and the gas outlet end of the inner ring ejection seat 22 is opposite to the gas inlet end of the inner ring gas inlet channel 17.

[0059] The burner of the utility model, please refer to Figure 7 The outer ring gas supplement ejection seat 25 is provided with a solenoid valve, and the solenoid valve opens or closes the communication end of the bypass channel 26 and the outer ring gas supplement ejection seat 25.

[0060] In the process of supplementing gas into the outer ring fire groove 11 through the outer ring ejection seat 21 and the outer ring gas supplement ejection seat 25 to carry out cooking operation, the gas amount flowing from the outer ring ejection seat 21 to the outer ring gas supplement ejection seat 25 through the bypass channel 26 can be controlled by opening or closing the solenoid valve. Under different working conditions, such as low-power operation or high-power demand of the equipment, the gas amount supplemented to the outer ring fire groove 11 can be accurately adjusted to ensure that the burning effect is optimal, so that the energy output meets the demand and gas waste is avoided. When the system detects abnormal conditions, such as gas leakage, excessive pressure or other safety hazards, the solenoid valve can quickly close to cut off the communication between the bypass channel 26 and the outer ring gas supplement ejection seat 25, prevent the continuous supply of gas, and avoid possible safety accidents, thereby ensuring the safety of the equipment and personnel.

[0061] The burner of the utility model, please refer to Figure 4 The outer ring gas inlet channel 16 and the outer ring gas supplement channel 18 are symmetrically arranged, the bottom of the outer ring fire groove 11 is an outer ring bottom surface a, the outer ring bottom surface a is downwardly sunken to form two gas sink grooves a1, and the gas outlet ends of the outer ring gas inlet channel 16 and the outer ring gas supplement channel 18 are arranged opposite to the two gas sink grooves a1 respectively.

[0062] The outer ring gas supplement channel 18 and the outer ring gas inlet channel 16 are symmetrically arranged relative to the center of the distributor 1, so that the gas introduced from the outer ring ejection seat 21 is divided into two parts and enters the outer ring fire groove 11, the gas in the outer ring fire groove 11 is burned and forms uniform flames, and the dispersion of the gas improves the full combustion effect of the gas.

[0063] During the cooking process, the mixed gas of air and gas is indirectly introduced into the outer ring fire groove 11 from the outer ring air inlet channel 16 and the outer ring air supplement channel 18. The directly opposite air sink groove a1 can guide the air flow to flow downward, so that the air flow forms a certain disturbance and backflow at the air sink groove a1, thereby promoting the more sufficient mixing of the gas and air, creating conditions for more complete combustion, improving the combustion efficiency, releasing more heat from the combustion, and forming a relatively stable area in and around the air sink groove a1. When the mixed gas flow rushes to the air sink groove a1, a low-speed backflow area is formed, which can retain part of the high-temperature combustion products, continuously providing an ignition source for the subsequent combustible mixed gas, ensuring that the flame can remain stable under various working conditions, preventing the phenomenon of flickering, jumping or even extinguishing of the flame. In addition, during the combustion process, the gas may carry some impurities, and the high-temperature gas produced by combustion may form condensate during the cooling process. The air sink groove a1 is located at the bottom of the outer ring fire groove 11 and can collect these impurities and condensate, preventing them from flowing around in the outer ring fire groove 11, avoiding interference with the combustion process, and preventing the impurities and condensate from causing corrosion, blockage and other problems to the outer ring fire groove 11, ensuring the normal operation of the system.

[0064] The burner of the utility model, please refer to Figures 1 to 3 Further comprising an outer ring fire cover 3 and an inner ring fire cover 4, the outer ring fire cover 3 is arranged on the outer ring fire groove 11, and the outer ring fire cover 3 is provided with an outer ring fire hole 31; the inner ring fire cover 4 covers the inner ring fire groove 13 and the central channel 14 at the same time, and the side surface of the inner ring fire cover 4 is provided with an inner ring fire hole 41; and the top surface of the inner ring fire cover 4 is provided with a central fire hole 42 opposite the central channel 14.

[0065] During the cooking process, the outer ring, the inner ring and the center three different flame areas are formed by the cooperation of the outer ring fire cover 3, the inner ring fire cover 4, the outer ring fire groove 11, the inner ring fire groove 13 and the central channel 14 at different positions. The size and intensity of the flame in different areas can be controlled according to actual needs, realizing fine adjustment of combustion. For example, during cooking, slow stewing can only use the outer ring fire groove 11 and / or the inner ring fire groove 13 to output small flames through the outer ring fire hole 31 and / or the inner ring fire hole 41; when high-heat stir-frying is needed, the outer ring fire groove 11, the inner ring fire groove 13 and the central channel 14 can be opened at the same time to output larger and more intense flames through the outer ring fire hole 31, the inner ring fire hole 41 and the central fire hole 42. The outer ring fire groove 11, the inner ring fire groove 13 and the central channel 14 cooperate with the corresponding fire cover and fire hole to make the heat more evenly distributed in the area above the burner. The outer ring flame can cover a larger area, playing a role in auxiliary heating and heat balance for the inner ring and center areas, avoiding the situation of overheating in the center and insufficient temperature at the edge, so that the heated object can obtain relatively uniform heat on the entire surface, improving the heating quality and efficiency.

[0066] The outer ring fire cover 3 and the inner ring fire cover 4 limit the flame in a specific fire groove and fire hole range, effectively prevent the flame from spreading and outflowing at will, and reduce the risk of the flame contacting surrounding flammable materials to cause a fire. Especially in an environment such as a kitchen, various flammable materials may exist around, and the design can ensure the safety during use. Meanwhile, the outer ring fire groove 11, the inner ring fire groove 13, the center channel 14, the outer ring fire cover 3 and the inner ring fire cover 4 work together to form a stable combustion system, when the combustion state of a certain fire groove or fire hole is disturbed by external factors, the flames of other fire grooves and fire holes can play a certain compensation and stabilizing effect, maintain the stability of the entire combustion process, ensure that the burner can continuously and stably output heat, and improve the reliability and operation efficiency of the burner.

[0067] The burner of the utility model, please refer to Figure 2 and Figure 7 The lower surface edge of the burner head 2 is provided with a third supporting column 27, and the third supporting column 27 is supported in the shell of the cooking utensil.

[0068] When installing the burner head 2, the third supporting column 27 is supported in the shell of the cooking utensil. The third supporting column 27 is uniformly provided with at least two, so as to ensure the stable installation of the burner head 2.

[0069] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement or improvement within the spirit and principle of the utility model should be included in the protection range of the utility model.

Claims

1. A burner for a cooktop, characterized in that, The application relates to a stove head and a stove. The stove head (2) is provided with an outer ring ejection seat (21) and an inner ring ejection seat (22), the outer ring ejection seat (21) is communicated with the outer ring fire groove (11), the inner ring ejection seat (22) is communicated with the inner ring fire groove (13), and the upper surface of the stove head (2) is provided with a second supporting column (23); when the distributor (1) is connected with the stove head (2), the first supporting column (15) is supported on the second supporting column (23), and the lower surface of the distributor (1) and the upper surface of the stove head (2) form a gas supplement gap communicated with the gas supplement groove (12). The stove head (2) is provided with a center through hole (24) which is aligned with the center channel (14), and the gas pipe of the stove passes through the center through hole (24) and enters the center channel (14). The distributor (1) is provided with an outer ring air inlet channel (16) and an inner ring air inlet channel (17), the air inlet end of the outer ring air inlet channel (16) is opposite to the air outlet end of the outer ring ejection seat (21), the air outlet end of the outer ring air inlet channel (16) is communicated with the outer ring fire groove (11), the air inlet end of the inner ring air inlet channel (17) is opposite to the air outlet end of the inner ring ejection seat (22), and the air outlet end of the inner ring air inlet channel (17) is communicated with the inner ring fire groove (13).

2. The burner of claim 1, wherein The bottom surface of the distributor (1) comprises an outer ring bottom surface (a) which is the bottom of the outer ring fire groove (11) and an inner ring bottom surface (b) which is the bottom of the inner ring fire groove (13), and the outer ring bottom surface (a) and the inner ring bottom surface (b) are connected through the outer ring air inlet channel (16) and / or the inner ring air inlet channel (17).

3. The burner of claim 1, wherein The stove head (2) is provided with an outer ring ejection seat (21) and an inner ring ejection seat (22), the outer ring ejection seat (21) is communicated with the outer ring fire groove (11), the inner ring ejection seat (22) is communicated with the inner ring fire groove (13), and the upper surface of the stove head (2) is provided with a second supporting column (23), the first supporting column (15) is supported on the second supporting column (23) when the distributor (1) is connected with the stove head (2), and the lower surface of the distributor (1) and the upper surface of the stove head (2) form a gas supplement gap communicated with the gas supplement groove (12).

4. The burner of claim 3, wherein The stove head (2) is provided with a center through hole (24) which is aligned with the center channel (14), and the gas pipe of the stove passes through the center through hole (24) and enters the center channel (14).

5. The burner of claim 3, wherein The distributor (1) is provided with an outer ring air inlet channel (16) and an inner ring air inlet channel (17), the air inlet end of the outer ring air inlet channel (16) is opposite to the air outlet end of the outer ring ejection seat (21), the air outlet end of the outer ring air inlet channel (16) is communicated with the outer ring fire groove (11), the air inlet end of the inner ring air inlet channel (17) is opposite to the air outlet end of the inner ring ejection seat (22), and the air outlet end of the inner ring air inlet channel (17) is communicated with the inner ring fire groove (13). The bottom surface of the distributor (1) comprises an outer ring bottom surface (a) which is the bottom of the outer ring fire groove (11) and an inner ring bottom surface (b) which is the bottom of the inner ring fire groove (13), and the outer ring bottom surface (a) and the inner ring bottom surface (b) are connected through the outer ring air inlet channel (16) and / or the inner ring air inlet channel (17). The stove head (2) is provided with an outer ring ejection seat (21) and an inner ring ejection seat (22), the outer ring ejection seat (21) is communicated with the outer ring fire groove (11), the inner ring ejection seat (22) is communicated with the inner ring fire groove (13), and the upper surface of the stove head (2) is provided with a second supporting column (23), the first supporting column (15) is supported on the second supporting column (23) when the distributor (1) is connected with the stove head (2), and the lower surface of the distributor (1) and the upper surface of the stove head (2) form a gas supplement gap communicated with the gas supplement groove (12).

6. The burner of claim 4, wherein The outer ring bottom surface (a) of the bottom of the outer ring fire trench (11) is provided with a support surface (a2) which is aligned with the outer ring air inlet channel (16) and the inner ring air inlet channel (17), and the outer ring ejection seat (21) and the inner ring ejection seat (22) support the distributor (1) through the support surface (a2).

7. The burner of claim 5, wherein An electromagnetic valve is arranged on the outer ring air supplement ejection seat (25), and the electromagnetic valve opens or closes the communication end of the bypass channel (26) and the outer ring air supplement ejection seat (25).

8. The burner of claim 5, wherein The outer ring air inlet channel (16) and the outer ring air supplement channel (18) are symmetrically arranged, the bottom of the outer ring fire trench (11) is an outer ring bottom surface (a), and the outer ring bottom surface (a) is sunk downward to form two air sink grooves (a1), and the air outlet ends of the outer ring air inlet channel (16) and the outer ring air supplement channel (18) are arranged opposite to the two air sink grooves (a1) respectively.

9. Burner according to any of claims 1-8, characterized in that Further comprising an outer ring fire cover (3) and an inner ring fire cover (4), the outer ring fire cover (3) is arranged on the outer ring fire trench (11), the outer ring fire cover (3) is provided with an outer ring fire hole (31), the inner ring fire cover (4) covers the inner ring fire trench (13) and the center channel (14) at the same time, the side surface of the inner ring fire cover (4) is provided with an inner ring fire hole (41), and the top surface of the inner ring fire cover (4) is further provided with a center fire hole (42) which is aligned with the center channel (14).

10. Burner according to any of claims 1-8, characterized in that The lower surface edge of the furnace head (2) is provided with a third supporting column (27), and the third supporting column (27) is supported in the shell of the cooking appliance.

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