Combustor

Abstract

The utility model discloses a burner which comprises a burner cap, a burner cap seat and a burner base, the burner cap seat is arranged above the burner base in a clamping mode, and the burner cap is arranged on the top of the burner cap seat in a covering mode. The burner base is integrally cast and formed, and an auxiliary mounting hole site and a fuel gas channel are formed in the burner base; the fire cover comprises an inner fire cover and an outer fire cover; the auxiliary mounting hole position is used for positioning and assembling an ignition needle and a thermocouple; the fire cover base comprises an inner annular gas mixing cavity and an outer annular gas mixing cavity, and fire holes are formed in the inner annular gas mixing cavity and the outer annular gas mixing cavity. By means of the reasonable structural design, the burner is easy to produce and assemble and can independently control fire of the inner ring and the outer ring, the requirement for assembly or more accurate control under different installation occasions is met, the number of the injection pipes can be increased under the condition that the height and the transverse size of the burner are not changed, the length of the injection pipes can be increased, and the service life of the burner is prolonged. The injection capacity is enhanced, fuel gas and air are mixed more sufficiently, combustion is more sufficient, the content of carbon monoxide is lower, and the heat efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of combustor, especially, relate to a combustor. BACKGROUND

[0002] In the current technical field of combustor, the design of combustor used in household and commercial range usually needs to consider the stability of flame, thermal efficiency, manufacturing cost and production difficulty. The traditional combustor structure is often assembled by multiple independent components, which not only increases the complexity of production, but also increases the manufacturing cost. In addition, the multi-component structure may cause assembly error, affecting the combustion effect and service life.

[0003] The existing combustor generally includes a fire cover, a fire cover seat and a combustor base, wherein the gas enters the fire cover seat through the gas passage of the combustor base, and is sprayed out through the fire hole of the fire cover seat after being ignited by the igniter, to generate a flame for heating or cooking. However, the structure of the traditional combustor is relatively complex, especially in the design of the gas passage, which involves complex processing technology and precise assembly requirements, which limits the cost-effectiveness of its large-scale production. SUMMARY

[0004] The utility model provides a kind of combustor to solve the problems raised in the above background.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0006] A kind of combustor, including fire cover, fire cover seat and combustor base, characterized in that, the fire cover seat is engaged and arranged above the combustor base, and the fire cover is covered on the top of the fire cover seat;The combustor base is integrally cast into shape, and is formed with auxiliary hole position and gas passage;The fire cover includes inner fire cover and outer fire cover;The auxiliary hole position is used for positioning and assembling the ignition needle and thermocouple;The fire cover seat includes inner annular space gas mixing cavity and outer annular space gas mixing cavity, and the inner annular space gas mixing cavity and the outer annular space gas mixing cavity are both formed with fire hole.

[0007] Preferably, the gas passage formed on the combustor base can be a non-independent adjustment design formed through and communicating the inner annular space gas mixing cavity and the outer annular space gas mixing cavity, or the inner annular space gas mixing cavity and the outer annular space gas mixing cavity each have an independent gas passage for separate adjustment design.

[0008] Preferably, when the gas passage on the burner base is designed to be non-independently adjustable, the gas passage leading to the inner annular air-gas mixing chamber has one or more gas passage outlets, and the gas passage leading to the outer annular air-gas mixing chamber has one or more gas passage outlets. Each gas passage outlet is equipped with a nozzle, and each nozzle needs to be positioned opposite to the inner annular flame ejector tube of the inner annular air-gas mixing chamber and the outer annular flame ejector tube of the outer annular air-gas mixing chamber in the burner cap seat. Therefore, the inner annular flame ejector tube of the inner annular air-gas mixing chamber is designed to have one or more outlets, and the outer annular flame ejector tube of the outer annular air-gas mixing chamber is also designed to have one or more outlets.

[0009] Preferably, when the gas passages on the burner base are designed for individual adjustment, the inner annular air-gas mixing chamber and the outer annular air-gas mixing chamber each have an independent gas passage. The gas passage of the inner annular air-gas mixing chamber has one or more gas passage outlets, while the gas passage of the outer annular air-gas mixing chamber has one or more gas passage outlets. Each gas passage outlet is equipped with a nozzle, and each nozzle needs to be positioned opposite to the inner annular flame ejector tube of the inner annular air-gas mixing chamber and the outer annular flame ejector tube of the outer annular air-gas mixing chamber in the burner cap seat. Therefore, the inner annular flame ejector tube of the inner annular air-gas mixing chamber is designed to have one or more, and the outer annular flame ejector tube of the outer annular air-gas mixing chamber is also designed to have one or more.

[0010] Preferably, when the gas passage on the burner base is designed for independent adjustment, both the gas passage in the inner annular air-gas mixing chamber and the gas passage in the outer annular air-gas mixing chamber are designed with a gas connection port. However, when the gas passage is designed for non-independent adjustment, there is only one gas connection port.

[0011] Preferably, the burner base is designed with a sunken conical cavity for the ejector tube on the burner cap seat to be fitted and positioned.

[0012] Preferably, the ejector tube is based on a cross-sectional plane, and its forming angle range is within 1° to 90°, while the tilt angle of the nozzle positioned opposite it must also be the same.

[0013] Preferably, the conical cavity is designed with a countersunk hole, and the bottom of the burner cap seat is formed with a positioning block. The burner cap seat and the burner base are further assembled and reinforced by the cooperation of the countersunk hole and the positioning block.

[0014] Preferably, the flame cover holder is designed with a flame transmission channel.

[0015] Compared to existing technologies, the advantages of this utility model are as follows: This utility model achieves easy production, easy assembly, and independent control of the inner and outer ring flames through a reasonable structural design, meeting users' needs for assembly and use in different installation scenarios or for more precise flame control. Easy production and assembly are reflected in the fact that the burner cap seat and burner base can be integrally cast, and the formed structure includes a positioning block at the bottom of the burner cap seat. The positioning block of the burner cap seat and burner base, through cooperation with the countersunk hole and the wedge-fitting of the injector tube with the conical cavity, can further assist in installation and reinforce the assembly. Therefore, no other hardware fasteners are needed; the three major components can be stably assembled through their own weight and reasonable structure. Meeting different usage needs is achieved through the differentiated design of the gas passage, allowing for independent control of the inner and outer ring flames. Whether controlled individually or uniformly, it is worth noting that this utility model, by tilting the ejector tubes, can increase the number and length of the ejector tubes without changing the height and lateral dimensions of the burner, thereby enhancing the ejection capacity of the ejector tubes and making the gas and air mix more thoroughly in the ejector tubes. This results in more complete combustion of the gas, lower carbon monoxide content, and effectively improves the thermal efficiency of the burner, which is beneficial for application in high-power burners. Furthermore, the appropriate tilt angle of the ejector tubes not only facilitates the miniaturization of the burner but also reduces the manufacturing difficulty and production cost. It can be further explained that the burner base is integrally cast, so the ejector tubes are formed by drilling, boring, or drafting, which further reduces production costs to some extent. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the gas passage of this utility model when it is designed and formed as a non-independent adjustable structure.

[0017] Figure 2 for Figure 1 A cross-sectional structural diagram.

[0018] Figure 3 for Figure 1 A cross-sectional view of the fire cover.

[0019] Figure 4 for Figure 1 A partial assembly structure diagram.

[0020] Figure 5 for Figure 1 A top view of the burner base.

[0021] Figure 6 for Figure 1 A schematic diagram of the structure of the fire cover from below.

[0022] Figure 7 for Figure 1A bottom view structural schematic diagram of the middle burner base.

[0023] Figure 8 A schematic diagram of the assembly structure. Figure 1

[0024] Figure 9 A schematic diagram of the structure of the fire cap seat and the burner base when the gas passage is designed to be independently adjusted and shaped.

[0025] Figure 10 A schematic diagram of the assembly structure. Figure 9

[0026] Figure 11 A schematic diagram of the local structure when the gas passage is designed to be non-independent adjustment and shaped and the single fire cap is designed. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Implementation list 1

[0029] As Figures 1 to 8 ​​As shown, the utility model is a kind of combustor, it is mainly by fire cover (1), fire cover seat (2) and combustor base (3) composition, fire cover seat (2) is engaged in the upper of combustor base (3), and the fire cover (1) is covered in the top of fire cover seat (2);The combustor base (3) is integrally cast into shape, and it is formed with auxiliary hole site and gas passage (30);The fire cover (1) includes inner fire cover (10) and outer fire cover (11);The auxiliary hole site is positioned and fitted for ignition needle (4) and thermocouple (5).Wherein the gas passage (30) on combustor base (3) is shaped for non-independent adjustment design, i.e. the gas passage (30) on combustor base (3) is through and communicates inner annular space gas mixing chamber (20) and outer annular space gas mixing chamber (21), for after the gas is accessed after the gas connection port (300) of combustor base (3), gas can reach fire cover seat (2) smoothly, the gas passage outlet of gas passage (30) leading to inner annular space gas mixing chamber (20) is opened with one or more, and the gas passage outlet leading to outer annular space gas mixing chamber (21) is opened with one or more, and each gas passage outlet is fitted with nozzle (6), each nozzle (6) needs with inner ring fire injection pipe (200) in inner annular space gas mixing chamber (20) and outer ring fire injection pipe (210) in outer annular space gas mixing chamber (21) in fire cover seat (2) relative position setting, so that the inner ring fire injection pipe (200) designed to be shaped with one or more through in inner annular space gas mixing chamber (20), and the outer ring fire injection pipe (210) designed to be shaped with one or more through in outer annular space gas mixing chamber (21).

[0030] Through such design, the following working effects can be realized:

[0031] 1, gas enters gas passage (30) through gas connection port (300) on combustor base (3), and then is sprayed out through nozzle (6), and there is a space in contact with atmosphere between nozzle (6) and injection pipe, when gas is sprayed out from nozzle (6), air will be driven into corresponding injection pipe, so as to be fully mixed with air in injection pipe, to form air-fuel mixture, which enters inner annular space gas mixing chamber (20) and outer annular space gas mixing chamber (21) between fire cover (1) and fire cover seat (2), and can be sprayed out from fire hole (22);

[0032] 2, after air-fuel mixture in inner annular space gas mixing chamber (20) is sprayed out from fire hole (22) of inner annular space gas mixing chamber (20), it is discharged by ignition needle (4), ignites the air-fuel mixture, forms combustion, and the air-fuel mixture sprayed out through the fire hole (22) on the inner side of outer annular space gas mixing chamber (21) is ignited by the flame of the combustion, and then passes through the fire transmission channel (24) between outer fire cover (11) and fire cover seat (2), and ignites the air-fuel mixture sprayed out from the fire hole (22) on the outer side of outer annular space gas mixing chamber (21).

[0033] In this embodiment, the inner and outer ring fires can be simultaneously enlarged or reduced or extinguished by adjusting the valve body of the stove.

[0034] It is worth noting that the burner base (3) is designed with a sunken conical sink (32) for the positioning of the injection pipe on the fire cap seat (2), and the conical sink (32) is also designed with a counterbore (320) and the bottom of the fire cap seat (2) is formed with a positioning block (23), which can further assist in the installation and reinforcement of the fire cap seat (2) and the burner base (3) without the need for other fastening hardware for auxiliary installation.

[0035] In addition, the angle range of the injection pipe based on the cross-sectional plane can be within 1°-90°, and the inclination angle of the nozzle (6) arranged opposite to it also needs to be the same. By tilting the injection pipe, the number and length of the injection pipe can be extended without changing the height and lateral size of the burner, enhancing the injection capacity of the injection pipe and making the gas and air mix more fully in the injection pipe, thereby making the gas burn more fully and reducing the content of carbon monoxide, effectively improving the thermal efficiency of the burner and facilitating its application in high-power burners. When the injection pipe is at a proper inclination angle, it not only facilitates the miniaturization of the burner but also reduces the manufacturing difficulty and production cost of the burner.

[0036] Embodiment II

[0037] For details, please refer to Figure 9 and Figure 10 In order to separately control the power of the inner ring fire and the outer ring fire, the burner base (3) is designed with an independent gas passage (30) for each of the inner ring air-fuel mixing chamber (20) and the outer ring air-fuel mixing chamber (21) for separate adjustment. At this time, the gas connection port (300) on the burner base (3) is provided with two openings. After the gas connection port (300) of the burner base (3) is connected to the gas, the gas can smoothly reach the fire cap seat (2). The gas passage outlet of the gas passage (30) of the inner ring air-fuel mixing chamber (20) is provided with one or more than one, and the gas passage outlet of the gas passage (30) of the outer ring air-fuel mixing chamber (21) is provided with one or more than one. Each gas passage outlet is equipped with a nozzle (6). Each nozzle (6) is arranged opposite to the inner ring fire injection pipe (200) of the inner ring air-fuel mixing chamber (20) and the outer ring fire injection pipe (210) of the outer ring air-fuel mixing chamber (21) in the fire cap seat (2). Therefore, the inner ring fire injection pipe (200) of the inner ring air-fuel mixing chamber (20) is designed with one or more than one, and the outer ring fire injection pipe (210) of the outer ring air-fuel mixing chamber (21) is also designed with one or more than one.

[0038] And burner base (3) also designed with conical sink (32), injection pipe based on the plane of section forming angle range is still in 1 ° ~ 90 °, conical sink (32) is designed with counterbore (320), fire cover seat (2) bottom is shaped with locating block (23), and fire cover seat (2) is designed with fire passageway (24).

[0039] Through such design, the following working effects can be realized:

[0040] 1, the gas of outer ring space gas mixing cavity (21) enters the gas passage of outer ring space gas mixing cavity (21) through the outer ring fire gas connecting port (300) on the burner base (3), and then is sprayed out through the nozzle (6) of the gas passage, there is a space in contact with the atmosphere between the nozzle (6) and the outer ring fire injection pipe, when the gas is sprayed out from the nozzle (6) of the outer ring fire, it will drive air into the corresponding outer ring fire injection pipe to mix gas and air sufficiently in the outer ring fire injection pipe, so as to form air-fuel mixture, the mixture enters the outer ring space gas mixing cavity (21) between the outer fire cover (11) and the fire cover seat (2), and then is sprayed out from the fire hole (22) of the outer ring space gas mixing cavity (21);

[0041] 2, the gas of inner ring space gas mixing cavity (20) enters the gas passage of inner ring space gas mixing cavity (20) through the inner ring fire gas connecting port on the burner base (3), and then is sprayed out through the nozzle (6) of the gas passage, there is a space in contact with the atmosphere between the nozzle (6) and the ring fire injection pipe, when the gas is sprayed out from the nozzle (6) of the ring fire, it will drive air into the corresponding ring fire injection pipe to mix gas and air sufficiently in the ring fire injection pipe, so as to form air-fuel mixture, the mixture enters the ring fire cavity (21) between the fire cover (11) and the fire cover seat (2), and then is sprayed out from the fire hole (22) of the ring fire cavity (21);

[0042] 3, the air-fuel mixture of inner ring fire is sprayed out from the inner ring fire hole, ignited by the discharge of ignition needle (4), forms combustion, and then the air-fuel mixture sprayed out from the inner side of outer ring hole is ignited by the flame of the combustion, and then the air-fuel mixture sprayed out from the outer side of outer ring hole is ignited through the fire passageway (24) between the outer fire cover (11) and the fire cover seat (2);

[0043] 4, in use, the gas of outer ring fire can be adjusted by adjusting the valve body of the stove to be closed, so that the outer ring fire is extinguished, and only the inner ring fire works, or when the inner ring fire works and the outer ring fire is extinguished, the valve body of the stove is adjusted, so that the gas of outer ring fire is sprayed out from the nozzle (6) of outer ring fire, and the outer ring fire is ignited again by the inner ring fire.

[0044] Implementation list three

[0045] When the gas passage of the utility model is designed to be non-independent adjustment, and the single fire cover design is not divided into inner and outer ring fires, details can be checked Figure 11 , the following working effects can be achieved:

[0046] 1, the gas passes through the gas connecting port (300) on the burner base (3) into the gas passage (30), and then is sprayed out through the nozzle (6), there is a space in contact with the atmosphere between the nozzle (6) and the draft tube, when the gas is sprayed out from the nozzle (6), air is driven into the corresponding draft tube, in the draft tube, the gas and air are fully mixed, thereby forming the air-fuel mixture, the mixture enters the fire chamber between the fire cover (1) and the fire cover seat, and then is sprayed out from the fire hole (22);

[0047] 2, after the air-fuel mixture is sprayed out from the fire hole (22), the air-fuel mixture is discharged by the ignition needle (4), and the air-fuel mixture is ignited to form combustion.

[0048] The utility model discloses a reasonable structure design realizes that the burner is easy to produce, easy to assemble and can control the use demand of single inner and outer ring fires, to satisfy the assembly use or more accurate fire control use demand of user under different installation occasions, and guarantee the draft capacity of the draft tube, make the gas and air mix more fully in the draft tube, thereby make the gas burn more fully, the content of carbon monoxide is lower, effectively improve the thermal efficiency of the burner, be favorable to be applied to the high -power burner, and the draft tube under the proper inclination angle not only can benefit the miniaturization of the burner, but also can reduce the manufacturing difficulty and production cost of the burner.

[0049] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model.

[0050] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0051] In the utility model, unless another definite provision and limitation, the term " install " " link " " connect " " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection, also can be communication;Can be direct connection, also can pass through intermediate medium indirectly connect, can be two element inside's intercommunication or two element's interaction relation. For ordinary skilled person in the art, can understand the concrete meaning of above -mentioned term in the utility model according to specific circumstances.

[0052] In the utility model, unless another definite provision and limitation, first feature is " on " or " under " second feature " " can be first and second feature direct contact, or first and second feature indirectly contact by intermediate medium. In the description of the present specification, the description of the reference terms " one scheme " " some schemes " " example " " specific example " or " some examples " means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more schemes or examples in a suitable manner.

Claims

1. Burner comprising a burner cap (1), a burner cap seat (2) and a burner base (3), characterized in that, The fire cover seat (2) is engaged above the burner base (3), and the fire cover (1) is covered on the top of the fire cover seat (2); the burner base (3) is integrally cast, which is formed with auxiliary hole positions and gas passages (30); the fire cover (1) comprises an inner fire cover (10) and an outer fire cover (11); the auxiliary hole positions are used for positioning and assembling the ignition needle (4) and the thermocouple (5); the fire cover seat (2) comprises an inner annular space gas mixing chamber (20) and an outer annular space gas mixing chamber (21), and the inner annular space gas mixing chamber (20) and the outer annular space gas mixing chamber (21) are formed with fire holes (22).

2. A burner as claimed in claim 1, characterised in that The gas passages (30) formed on the burner base (3) can be designed as non-independent adjustment or each of the inner annular space gas mixing chamber (20) and the outer annular space gas mixing chamber (21) has an independent gas passage (30) for separate adjustment.

3. A burner as claimed in claim 2, characterised in that When the gas passages (30) on the burner base (3) are designed as non-independent adjustment, the gas passage outlet of the gas passage (30) leading to the inner annular space gas mixing chamber (20) is provided with one or more than one, and the gas passage outlet of the gas passage (30) leading to the outer annular space gas mixing chamber (21) is provided with one or more than one, and each gas passage outlet is provided with a nozzle (6), each nozzle (6) needs to be arranged opposite to the inner annular fire injection pipe (200) of the inner annular space gas mixing chamber (20) and the outer annular fire injection pipe (210) of the outer annular space gas mixing chamber (21) in the fire cover seat (2), so the inner annular fire injection pipe (200) of the inner annular space gas mixing chamber (20) is designed as one or more than one, and the outer annular fire injection pipe (210) of the outer annular space gas mixing chamber (21) is also designed as one or more than one.

4. A burner as claimed in claim 2, characterised in that When the gas passages (30) on the burner base (3) are designed as separate adjustment, each of the inner annular space gas mixing chamber (20) and the outer annular space gas mixing chamber (21) has an independent gas passage (30), wherein the gas passage outlet of the gas passage (30) of the inner annular space gas mixing chamber (20) is provided with one or more than one, and the gas passage outlet of the gas passage (30) of the outer annular space gas mixing chamber (21) is provided with one or more than one, and each gas passage outlet is provided with a nozzle (6), each nozzle (6) needs to be arranged opposite to the inner annular fire injection pipe (200) of the inner annular space gas mixing chamber (20) and the outer annular fire injection pipe (210) of the outer annular space gas mixing chamber (21) in the fire cover seat (2), so the inner annular fire injection pipe (200) of the inner annular space gas mixing chamber (20) is designed as one or more than one, and the outer annular fire injection pipe (210) of the outer annular space gas mixing chamber (21) is also designed as one or more than one.

5. A burner as claimed in claim 2, characterised in that The gas passage (30) on the burner base (3) is designed as a single adjustment type, and the gas passage (30) of the inner annular gas mixing cavity (20) and the gas passage (30) of the outer annular gas mixing cavity (21) are each designed with a gas connecting port (300), and the gas passage (30) is not designed as a single adjustment type, and only one gas connecting port (300) is provided.

6. A burner as claimed in claim 1, characterised in that The burner base (3) is designed with a sunken conical sunken cavity (32) for positioning and setting of the injection pipe on the fire cover seat (2).

7. A burner as claimed in claim 3, characterised in that The injection pipe is based on a cross-sectional plane, and the forming angle range can be 1°-90°, and the inclination angle of the nozzle (6) arranged opposite to the injection pipe also needs to be the same.

8. A burner as claimed in claim 6, characterised in that The conical sunken cavity (32) is designed with a counterbore (320), and the bottom of the fire cover seat (2) is formed with a positioning block (23), and the fire cover seat (2) and the burner base (3) are further auxiliary installed and reinforced assembled through cooperation of the counterbore (320) and the positioning block (23).

9. A burner as claimed in claim 1, characterised in that The fire cover seat (2) is designed with a fire transmission passage (24).

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