Blast burner for gas stove and gas stove

Abstract

The utility model relates to the field of household gas stoves, and discloses a blast burner for a gas stove, comprising: a burner assembly comprising an injection pipe provided with a gas inlet; the fan mounting plate is arranged at the air inlet and comprises an air storage cavity and a mounting part, and one end of the mounting part is connected with the air storage cavity; the fan is arranged at the other end of the mounting part and is used for generating primary air; the air storage cavity is configured to store primary air generated by the draught fan and guide the primary air into the injection pipe. Therefore, the fan mounting plate integrates the fan mounting function and the gas storage function, the reserved mounting space of the fan housing is saved, the number of parts of the blast burner is reduced, the cost is saved, the assembly difficulty is reduced, and the production speed is increased. And moreover, the fan forcibly blows air to provide sufficient primary air for the combustion process of the fuel gas, so that the phenomena of insufficient combustion such as over-standard carbon monoxide content and yellow flame are avoided as much as possible, and energy conservation and environmental protection are realized. The utility model further discloses the gas stove.

Description

Technical Field

[0001] The present application relates to the field of household gas stoves, and in particular to a blast burner for a gas stove and a gas stove. Background Art

[0002] At present, when ordinary gas stoves on the market increase their firepower, due to insufficient air provided during gas combustion, carbon monoxide content exceeds the standard and yellow flames will appear, which not only wastes fuel, but also pollutes the environment and harms the health of users.

[0003] The related technology discloses a blast combustion system, comprising: a burner, the burner is provided with an inner ejector tube and an outer ejector tube, the inlet of the inner ejector tube and the inlet of the outer ejector tube are both provided with damper plates, the damper plates separate the inlet into a first air inlet and a second air inlet, and are provided with a gas inlet; a valve body, the valve body is connected to the gas inlet and is used to supply gas to the gas inlet; a blower and a blower cover, the blower cover is provided with a connected blast inlet and blast outlet, the blast inlet is connected to the blower, and the blast outlet is connected to the first air inlet of the inner ejector tube, or the blast outlet is connected to the first air inlet of the outer ejector tube.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] Although the related technology solves the problem of insufficient primary air volume during gas combustion by adding a fan to the gas stove for forced air blowing, the damper plate and the fan cover are separately arranged. The damper plate is installed separately on the ejector pipe, and the fan cover is arranged on the outside of the damper plate as a separate structure, which requires a large installation space to be reserved and is difficult to assemble.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a blast burner and a gas stove for a gas stove, which uses a damper mounting plate to replace a traditional damper plate and a fan housing, thereby saving installation space, reducing the number of parts of the blast burner, saving costs, reducing assembly difficulty, and increasing production speed. At the same time, the forced blast of the fan can also provide sufficient primary air for the combustion process of the gas, and try to avoid the phenomenon of insufficient combustion such as excessive carbon monoxide content and yellow flame.

[0009] According to a first aspect of an embodiment of the utility model, a blast burner for a gas stove is provided, comprising: a burner assembly, including an ejector tube, the ejector tube is provided with an air inlet; a fan mounting plate, arranged at the air inlet, comprising an air storage chamber and a mounting portion, one end of the mounting portion is connected to the air storage chamber; a fan, arranged at the other end of the mounting portion, for generating primary air; wherein the air storage chamber is configured to store the primary air generated by the fan and introduce the primary air into the ejector tube.

[0010] Optionally, the air storage cavity is a flat structure, and the mounting portion is arranged on the periphery of the air storage cavity.

[0011] Optionally, the air storage chamber includes an air inlet end arranged in the length direction of the air storage chamber, and the mounting portion includes: a flaring portion connecting the air storage chamber and the fan, including a large head end and a small head end extending along the length direction; wherein the large head end is connected to the fan, and the small head end is connected to the air inlet end, so as to guide the primary air generated by the fan to flow into the air storage chamber.

[0012] Optionally, a gap is left between the fan and the small head end.

[0013] Optionally, the fan mounting plate also includes: an inner blowing plate, arranged at the air inlet, including an air outlet connected to the air inlet; an outer blowing plate, connected to the inner blowing plate, and together with the inner blowing plate, enclosing an air storage cavity; wherein the primary air in the air storage cavity flows into the ejector tube through the air outlet.

[0014] Optionally, the fan mounting plate is also provided with a nozzle mounting port, which is used to install the nozzle of the blast burner; there are multiple air outlet holes, which are symmetrically arranged on both sides of the nozzle mounting port and connected to the air inlet of the ejector pipe.

[0015] Optionally, the fan mounting plate is also provided with an ejection port, which connects the ejection tube and the external space; the blast burner also includes: a damper, which is arranged at the nozzle mounting port and is located on the side of the outer blast plate away from the ejection tube, and can be rotated relative to the nozzle mounting port to adjust the flow area of ​​the ejection port.

[0016] Optionally, the nozzle mounting port, the air outlet hole and the ejection port together form an air outlet end face, the ejection tube and the air outlet end face are arranged in a one-to-one correspondence, the number of the ejection tubes is one or more, and the corresponding number of the air outlet end faces is one or more.

[0017] Optionally, the aperture of the air outlet is a, wherein 0.5 mm ≤ a ≤ 2.0 mm.

[0018] According to a second aspect of the embodiment of the utility model, a gas stove is provided, comprising: a shell; and a blast burner for the gas stove, which is arranged in the shell.

[0019] The blast burner for a gas stove and the gas stove provided in the embodiments of the present disclosure can achieve the following technical effects:

[0020] The disclosed embodiment provides a multifunctional fan mounting plate, and the fan is mounted on the fan mounting plate through a mounting portion. At the same time, the fan mounting plate is also provided with an air storage chamber, which is used to store the primary air generated by the fan and introduce the primary air into the ejector tube. In this way, the fan mounting plate integrates the fan installation function and the air storage function, saves the reserved installation space of the fan housing, reduces the number of parts of the blast burner, saves costs, reduces the difficulty of assembly, and improves the production speed. Moreover, the forced blast of the fan can also provide sufficient primary air for the combustion process of the gas, and try to avoid the phenomenon of insufficient combustion such as excessive carbon monoxide content and yellow flame, which is energy-saving and environmentally friendly.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of a blast burner for a gas stove provided in an embodiment of the present disclosure;

[0024] Figure 2 yes Figure 1 Schematic diagram of the cross section along the AA direction;

[0025] Figure 3 is a schematic diagram of the assembly of a fan and a fan mounting plate provided by an embodiment of the present disclosure;

[0026] Figure 4 It is a structural schematic diagram of a fan mounting plate provided in an embodiment of the present disclosure.

[0027] Reference numerals:

[0028] 10: blast burner;

[0029] 20: burner assembly; 21: ejector tube; 211: air inlet; 212: inner ring ejector tube; 213: outer ring ejector tube; 22: inner fire cover; 23: outer fire cover; 24: burner head; 25: fire cover seat;

[0030] 30: fan mounting plate; 31: air storage chamber; 311: air inlet end; 32: mounting portion; 321: flaring portion; 3211: large end; 3212: small end; 33: inner blast plate; 331: air outlet; 3311: inner ring air outlet; 3312: outer ring air outlet; 34: outer blast plate; 341: first groove; 342: second groove; 35: inner ring nozzle mounting port; 36: outer ring nozzle mounting port; 37: inner ring ejection port; 371: first ejection port; 372: second ejection port; 38: outer ring ejection port; 381: third ejection port; 382: fourth ejection port;

[0031] 40: fan;

[0032] 50: inner ring damper; 51: first circular panel; 511: first fan ring hole; 52: first adjustment rod;

[0033] 60: outer ring damper; 61: second circular panel; 611: second fan ring hole; 62: second adjustment rod. DETAILED DESCRIPTION

[0034] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0035] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate for the disclosed embodiments described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0036] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0037] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] Unless otherwise stated, the term "plurality" means two or more.

[0039] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0040] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0042] Combination Figures 1 to 4 As shown, the embodiment of the present disclosure provides a blast burner 10 for a gas stove, including a burner assembly 20, a fan mounting plate 30 and a fan 40. The burner assembly 20 includes an ejector tube 21, and the ejector tube 21 is provided with an air inlet 211. The fan mounting plate 30 is arranged at the air inlet 211, and the fan mounting plate 30 includes an air storage chamber 31 and a mounting portion 32, and one end of the mounting portion 32 is connected to the air storage chamber 31. The fan 40 is arranged at the other end of the mounting portion 32, and is used to generate primary air. Among them, the air storage chamber 31 is configured to store the primary air generated by the fan 40 and introduce the primary air into the ejector tube 21.

[0043] The blast burner 10 for a gas stove provided by the embodiment of the present disclosure discloses a multifunctional fan mounting plate 30, and the fan 40 is mounted on the fan mounting plate 30 through the mounting portion 32. At the same time, the fan mounting plate 30 is also provided with an air storage chamber 31, and the air storage chamber 31 is used to store the primary air generated by the fan 40 and introduce the primary air into the ejection tube 21. In this way, the fan mounting plate 30 integrates the installation function of the fan 40 and the air storage function, saves the reserved installation space of the fan housing, reduces the number of parts of the blast burner 10, saves costs, reduces the difficulty of assembly, and improves the production speed. Moreover, the forced blast of the fan 40 can also provide sufficient primary air for the combustion process of the gas, and try to avoid the phenomenon of insufficient combustion such as excessive carbon monoxide content and yellow flame, which is energy-saving and environmentally friendly.

[0044] Optionally, combined Figure 2 and Figure 3 As shown, the air storage chamber 31 is a flat structure, and the mounting portion 32 is disposed on the outer periphery of the air storage chamber 31 .

[0045] In this way, the flat air storage cavity 31 can reduce the space occupied by the fan mounting plate 30. The mounting portion 32 is arranged on the periphery of the air storage cavity 31, reducing the space occupied by the mounting portion 32 and the fan 40 connected to the mounting portion 32 on the front of the air storage cavity 31, so as not to affect the installation of subsequent parts on the front of the air storage cavity 31.

[0046] Optionally, the air storage chamber 31 includes an air inlet end 311 arranged in the length direction of the air storage chamber 31. The mounting portion 32 includes a flared portion 321, the flared portion 321 connects the air storage chamber 31 and the fan 40, and the flared portion 321 includes a large end 3211 and a small end 3212 extending in the length direction. The large end 3211 is connected to the fan 40, and the small end 3212 is connected to the air inlet end 311, so as to guide the primary air generated by the fan 40 to flow into the air storage chamber 31.

[0047] It is understandable that the air outlet of the fan 40 is relatively wide, and the air inlet end 311 of the flat air storage chamber 31 is also a flat structure, and the air inlet end 311 is relatively narrow. In this way, the relatively wide air outlet of the fan 40 and the relatively narrow air inlet end 311 of the air storage chamber 31 are connected together through the expansion portion 321, and the primary air generated by the fan 40 flows into the air storage chamber 31 after passing through the large end 3211 and the small end 3212 in sequence.

[0048] Optionally, a gap is left between the fan 40 and the small head end 3212 .

[0049] In the length direction, the fan 40, the mounting portion 32 and the air storage chamber 31 are arranged in sequence. A gap is left between the fan 40 and the small end 3212, so that after the fan 40 is installed on the mounting portion 32, part of the structure on the fan 40 will not block the front of the air storage chamber 31, so as not to affect the installation of other parts or block the original primary air inlet (such as the injection port below) on the fan mounting plate 30.

[0050] Optionally, the fan 40 is connected to the mounting portion 32 by screws.

[0051] Optionally, combined Figure 3 and Figure 4 As shown, the fan mounting plate 30 further includes an inner blast plate 33 and an outer blast plate 34. The inner blast plate 33 is disposed at the air inlet 211, and the inner blast plate 33 includes an air outlet 331 communicated with the air inlet 211. The outer blast plate 34 is connected to the inner blast plate 33, and the outer blast plate 34 and the inner blast plate 33 jointly enclose an air storage chamber 31. The primary air in the air storage chamber 31 flows into the ejector tube 21 through the air outlet 331.

[0052] In this way, the air storage chamber 31 is defined by the inner air blast plate 33 and the outer air blast plate 34 together, and the primary air generated by the fan 40 stored in the air storage chamber 31 flows into the ejector tube 21 through the air outlet holes 331 on the inner air blast plate 33, and the air outlet holes 331 can adjust the amount and flow rate of the primary air provided by the fan 40, for example, by adjusting the number, position, aperture, etc. of the air outlet holes 331. The fan mounting plate 30 integrates the fan 40 installation function, the primary air storage function, and the primary air conditioning function.

[0053] At present, the number of the ejector tubes 21 of the mainstream blast burner 10 on the market is two. Therefore, the embodiment of the present disclosure will be further described below by taking the number of the ejector tubes 21 as two as an example.

[0054] Optionally, combined Figures 1 to 4 As shown, the burner assembly 20 also includes an inner fire cover 22 and an outer fire cover 23. The ejector tube 21 includes an inner ring ejector tube 212 and an outer ring ejector tube 213. The inner ring ejector tube 212 is connected to the air outlet 331 of the inner blast plate 33, and the inner ring ejector tube 212 communicates with the gas storage chamber 31 and the inner fire cover 22. The outer ring ejector tube 213 is connected to the air outlet 331 of the inner blast plate 33, and the outer ring ejector tube 213 communicates with the gas storage chamber 31 and the outer fire cover 23.

[0055] In this way, the inner ring ejector tube 212 and the outer ring ejector tube 213 are both connected to the air outlet 331 of the inner blast plate 33, and the air storage chamber 31 can replenish air once to any one of the inner ring ejector tube 212 and the outer ring ejector tube 213 through the air outlet 331, and can also replenish air once to both the inner ring ejector tube 212 and the outer ring ejector tube 213 through the air outlet 331. When there are three or more ejector tubes 21, the air storage chamber 31 can also replenish air once to the three or more ejector tubes 21 through the air outlet 331.

[0056] Optionally, the burner assembly 20 further includes a burner head 24 and a fire cover seat 25, wherein the fire cover seat 25 is disposed above the burner head 24. The inner fire cover 22 and the outer fire cover 23 are both disposed on the fire cover seat 25. The burner head 24 is disposed between the ejector tube 21 and the fire cover seat 25, and transports the mixed gas in the inner ring ejector tube 212 or the outer ring ejector tube 213 to the inner fire cover 22 or the outer fire cover 23.

[0057] Optionally, the fan mounting plate 30 is further provided with an inner ring nozzle mounting opening 35 and an outer ring nozzle mounting opening 36, wherein the inner ring nozzle mounting opening 35 is used to mount the inner ring nozzle of the blast burner 10, and the outer ring nozzle mounting opening 36 is used to mount the outer ring nozzle of the blast burner 10. The air outlet 331 includes a plurality of inner ring air outlet holes 3311 and a plurality of outer ring air outlet holes 3312. The plurality of inner ring air outlet holes 3311 are symmetrically arranged on both sides of the inner ring nozzle mounting opening 35, and the plurality of inner ring air outlet holes 3311 are communicated with the air inlet 211 of the inner ring ejector tube 212. The plurality of outer ring air outlet holes 3312 are symmetrically arranged on both sides of the outer ring nozzle mounting opening 36, and the plurality of outer ring air outlet holes 3312 are communicated with the air inlet 211 of the outer ring ejector tube 213.

[0058] In this way, the fan mounting plate 30 has a nozzle mounting function in addition to the fan 40 mounting function, the primary air storage function and the primary air conditioning function.

[0059] Optionally, the blast burner 10 further includes an inner ring nozzle and an outer ring nozzle, wherein the inner ring nozzle is disposed at the inner ring nozzle mounting opening 35 and communicates with the air inlet 211 of the inner ring ejector tube 212, and the outer ring nozzle is disposed at the outer ring nozzle mounting opening 36 and communicates with the air inlet 211 of the outer ring ejector tube 213. Both the inner ring nozzle and the outer ring nozzle are connected to the gas pipe of the blast burner 10, and are used to deliver the gas into the inner ring ejector tube 212 and the outer ring ejector tube 213.

[0060] A plurality of inner ring air outlet holes 3311 are symmetrically arranged on both sides of the inner ring nozzle mounting opening 35, which is conducive to the full mixing of the primary air and the gas ejected from the inner ring nozzle, so that the gas burns more fully, avoiding the phenomenon of incomplete combustion such as excessive carbon monoxide content and yellow flame, and energy saving and environmental protection. A plurality of outer ring air outlet holes 3312 are symmetrically arranged on both sides of the outer ring nozzle mounting opening 36, which is conducive to the full mixing of the primary air and the gas ejected from the outer ring nozzle, so that the gas burns more fully, avoiding the phenomenon of incomplete combustion such as excessive carbon monoxide content and yellow flame, and energy saving and environmental protection.

[0061] Optionally, combined Figure 4 As shown, the number of the inner ring air outlet holes 3311 is 8, and the 8 inner ring air outlet holes 3311 are symmetrically arranged on both sides of the inner ring nozzle installation opening 35.

[0062] The optimal number of inner ring air outlet holes 3311 is obtained based on empirical values.

[0063] Optionally, combined Figure 4 As shown, the number of the outer ring air outlet holes 3312 is 8, and the 8 outer ring air outlet holes 3312 are symmetrically arranged on both sides of the outer ring nozzle installation opening 36.

[0064] The optimal number of the outer ring air outlet holes 3312 is obtained based on empirical values.

[0065] Optionally, combined Figures 1 to 4 As shown, the fan mounting plate 30 is also provided with an inner ring ejection port 37 and an outer ring ejection port 38, the inner ring ejection port 37 is connected to the inner ring ejection pipe 212 and the external space, and the outer ring ejection port 38 is connected to the outer ring ejection pipe 213 and the external space. The blast burner 10 also includes an inner ring damper 50 and an outer ring damper 60. The inner ring damper 50 is provided at the inner ring nozzle mounting port 35 and is located on the side of the outer blast plate 34 away from the outer ring ejection pipe 213. The inner ring damper 50 can rotate relative to the inner ring nozzle mounting port 35 to adjust the flow area of ​​the inner ring ejection port 37. The outer ring damper 60 is provided at the outer ring nozzle mounting port 36 and is located on the side of the outer blast plate 34 away from the inner ring ejection pipe 212. The outer ring damper 60 can rotate relative to the outer ring nozzle mounting port 36 to adjust the flow area of ​​the outer ring ejection port 38.

[0066] In this way, the flow area of ​​the inner ring ejection port 37 is adjusted by the position of the inner ring damper 50 relative to the inner ring ejection port 37, and the flow area of ​​the outer ring ejection port 38 is adjusted by the position of the outer ring damper 60 relative to the outer ring ejection port 38. In addition to the functions of installing the fan 40, storing the primary air, regulating the primary air, and installing the nozzle, the fan mounting plate 30 also has the damper installation function and the primary air ejection function. The high-speed gas ejected from the nozzle enters the ejection pipe 21, and the high-speed gas airflow forms a negative pressure zone, driving the external air to enter the ejection pipe 21 from the ejection port; the air outlet holes 331 have a small diameter and a large number. Under the action of the fan 40, the airflow ejected from the air outlet holes 331 has a high velocity, forming a negative pressure difference around, and ejecting the primary air from the ejection port again.

[0067] Specifically, the blast burner 10 provided in the embodiment of the present disclosure has three ways to replenish the primary air in the inner ring ejector tube 212: one is to naturally eject primary air from the inner ring ejection port 37 through the negative pressure difference formed by the gas flow ejected from the inner ring nozzle (the pressure in the inner ring ejector tube 212 is lower than the pressure in the external space); the second is to forcibly replenish primary air through the fan 40 and the inner ring air outlet 3311; the third is to eject primary air from the inner ring ejection port 37 again through the negative pressure difference formed by the air flow ejected from the inner ring air outlet 3311 (the pressure in the inner ring ejector tube 212 is lower than the pressure in the external space).

[0068] The primary air generated by the fan 40, the primary air naturally ejected by the gas, and the primary air ejected again by the fan 40 primary air through the inner ring air outlet 3311, these three air streams and the gas ejected from the inner ring nozzle are mixed in the inner ring ejector pipe 212 and the burner head 24. A sufficient amount of primary air is fully mixed with the gas, so that the secondary air required for the gas stove to burn is reduced, which can reduce the heat loss carried away by the high-temperature smoke and improve the thermal efficiency. The outer ring ejector pipe 213 replenishes the primary air in the same way as the inner ring ejector pipe 212 replenishes the primary air, which will not be repeated here.

[0069] In summary, when the fan 40 works normally, the air intake volume of the primary air can be adjusted through four places: first, the air intake volume is controlled by adjusting the size of the inner ring introduction port 37 or the outer ring introduction port 38 through the inner ring damper 50 or the outer ring damper 60; second, the amount of primary air provided by the fan is adjusted by controlling the number, position, aperture, etc. of the air outlet holes 331; third, the flow rate of the primary air provided by the fan 40 is adjusted by the number, position, aperture, etc. of the air outlet holes 331, and then the size of the negative pressure is controlled by controlling the flow rate, so that different amounts of primary air are introduced through different negative pressure differences; fourth, the rotation speed of the fan 40 is controlled by the frequency conversion device of the blast burner 10 to change the air intake volume.

[0070] When the fan 40 fails to work or the fan 40 is not needed due to low fire power, the blast burner 10 can be used as a natural injection burner. The nozzle ejects gas under the action of air pressure, and the high-speed gas flow forms a negative pressure around it, driving the external air into the ejection pipe 21 from the ejection port. This air and the gas ejected from the nozzle are fully mixed in the ejection pipe 21 and the burner head 24 for full combustion. At this time, the size of the inner ring ejection port 37 or the outer ring ejection port 38 is adjusted by the inner ring damper 50 or the outer ring damper 60 to control the air intake of the primary air. Moreover, the fan 40 will not block the inner ring ejection port 37 and the outer ring ejection port 38, ensuring the normal operation of the blast burner 10.

[0071] Optionally, the inner ring injection port 37 is fan-shaped. The inner ring damper 50 includes a first circular panel 51, the center of which is located at the inner ring nozzle mounting port 35, and the first circular panel 51 is provided with a first fan ring hole 511 adapted to the inner ring injection port 37. When the two arc sides of the first fan ring hole 511 correspond to the two arc sides of the inner ring injection port 37 one-to-one, and the two straight sides of the first fan ring hole 511 correspond to the two straight sides of the inner ring injection port 37 one-to-one, the inner ring injection port 37 is fully opened.

[0072] The first fan ring hole 511 can rotate relative to the inner ring nozzle mounting port 35, and move between a first position completely overlapping with the inner ring injection port 37 and a second position completely offset from the inner ring injection port 37. In this way, the flow area of ​​the inner ring injection port 37 can be adjusted by the relative position of the first fan ring hole 511 and the inner ring injection port 37.

[0073] Optionally, the outer ring injection port 38 is fan-shaped. The outer ring damper 60 includes a second circular panel 61, the center of which is located at the outer ring nozzle mounting port 36, and the second circular panel 61 is provided with a second fan ring hole 611 adapted to the outer ring injection port 38. When the two arc sides of the second fan ring hole 611 correspond one-to-one with the two arc sides of the outer ring injection port 38, and the two straight sides of the second fan ring hole 611 correspond one-to-one with the two straight sides of the outer ring injection port 38, the outer ring injection port 38 is fully opened.

[0074] The second fan ring hole 611 can rotate relative to the outer ring nozzle mounting port 36, and move between a third position completely overlapping with the outer ring injection port 38 and a fourth position completely offset from the outer ring injection port 38. In this way, the flow area of ​​the outer ring injection port 38 can be adjusted by the relative position of the second fan ring hole 611 and the outer ring injection port 38.

[0075] Optionally, the inner ring damper 50 includes a first protrusion, and the outer blowing plate 34 is provided with a corresponding plurality of first grooves 341, and the first protrusion moves between the plurality of first grooves 341 to make the first fan ring hole 511 move between a first position and a second position, thereby adjusting the flow area of ​​the inner ring injection port 37.

[0076] Optionally, the inner ring damper 50 includes a first adjusting rod 52 , and the first protrusion is provided on the first adjusting rod 52 .

[0077] Optionally, the outer ring damper 60 includes a second protrusion, and the outer blowing plate 34 is provided with a corresponding plurality of second grooves 342, and the second protrusion moves between the plurality of second grooves 342 to make the second fan ring hole 611 move between a third position and a fourth position, thereby adjusting the flow area of ​​the outer ring injection port 38.

[0078] Optionally, the outer ring damper 60 includes a second adjusting rod 62 , and the second protrusion is provided on the second adjusting rod 62 .

[0079] Optionally, the inner ring injection port 37 includes a first injection port 371 and a second injection port 372 , and the first injection port 371 and the second injection port 372 are symmetrically arranged on both sides of the inner ring nozzle installation port 35 .

[0080] The first injection port 371 and the second injection port 372 are symmetrically arranged on both sides of the inner ring nozzle installation port 35, which is conducive to the full mixing of the primary air and the fuel gas ejected from the inner ring nozzle, so that the fuel gas burns more completely, avoiding the phenomenon of incomplete combustion such as excessive carbon monoxide content and yellow flame, and saving energy and protecting the environment.

[0081] Optionally, the first injection port 371 and the second injection port 372 are arranged on the left and right sides of the inner ring nozzle mounting port 35, and the multiple inner ring air outlet holes 3311 are arranged on the upper and lower sides of the inner ring nozzle mounting port 35; or, the first injection port 371 and the second injection port 372 are arranged on the upper and lower sides of the inner ring nozzle mounting port 35, and the multiple inner ring air outlet holes 3311 are arranged on the left and right sides of the inner ring nozzle mounting port 35.

[0082] In this way, the first injection port 371, the second injection port 372 and the multiple inner ring air outlet holes 3311 are arranged around the inner ring nozzle installation port 35 to form an encirclement, and the inner ring nozzle is located in the middle of the encirclement. The first injection port 371, the second injection port 372 and the multiple inner ring air outlet holes 3311 can provide primary air during the combustion process of the gas, which is beneficial to the full mixing of the gas in the middle and the primary air around, so that the gas burns more completely, avoiding the occurrence of incomplete combustion such as excessive carbon monoxide content and yellow flame, and saving energy and protecting the environment.

[0083] Optionally, the outer ring injection port 38 includes a third injection port 381 and a fourth injection port 382 , and the third injection port 381 and the fourth injection port 382 are symmetrically arranged on both sides of the outer ring nozzle installation port 36 .

[0084] The third injection port 381 and the fourth injection port 382 are symmetrically arranged on both sides of the outer ring nozzle installation port 36, which is conducive to the full mixing of the primary air and the fuel gas ejected from the outer ring nozzle, so that the fuel gas burns more completely, avoiding excessive carbon monoxide content, yellow flames and other incomplete combustion phenomena, and saving energy and protecting the environment.

[0085] Optionally, the third injection port 381 and the fourth injection port 382 are arranged on the left and right sides of the outer ring nozzle mounting port 36, and the multiple outer ring air outlet holes 3312 are arranged on the upper and lower sides of the outer ring nozzle mounting port 36; or, the third injection port 381 and the fourth injection port 382 are arranged on the upper and lower sides of the outer ring nozzle mounting port 36, and the multiple outer ring air outlet holes 3312 are arranged on the left and right sides of the outer ring nozzle mounting port 36.

[0086] In this way, the third injection port 381, the fourth injection port 382 and the plurality of outer ring air outlet holes 3312 are arranged around the outer ring nozzle mounting port 36 to form an encirclement, and the outer ring nozzle is located in the middle of the encirclement. The third injection port 381, the fourth injection port 382 and the plurality of outer ring air outlet holes 3312 can provide primary air during the combustion of the gas, which is beneficial to the full mixing of the gas in the middle and the primary air around, so that the gas burns more fully, avoiding the occurrence of incomplete combustion such as excessive carbon monoxide content and yellow flame, and saving energy and protecting the environment.

[0087] Optionally, the nozzle mounting port, the air outlet hole and the ejection port together form an air outlet end face, the ejection tube 21 is arranged in one-to-one correspondence with the air outlet end face, the number of the ejection tubes 21 is one or more, and the number of the corresponding air outlet end faces is one or more.

[0088] In this way, single injection and multiple injection can be realized according to user needs. When the number of injection tubes 21 is multiple, the fan 40 can blow air to multiple injection tubes 21 at the same time.

[0089] Optionally, the aperture of the inner ring air outlet hole 3311 is a, and the aperture of the outer ring air outlet hole 3312 is b, wherein 0.5 mm ≤ a ≤ 2.0 mm, and 0.5 mm ≤ b ≤ 2.0 mm.

[0090] According to a large number of experimental tests, the range of values ​​of the aperture of the inner ring air outlet 3311 and the aperture of the outer ring air outlet 3312 is obtained. When the aperture is less than 0.5 mm, the outflow resistance of the air in the air storage chamber 31 is large; when the aperture is greater than 2.0 mm, the air flow rate is too small, and the pressure difference between the ejection tube 21 and the external space is small, and it is not easy to eject air again. It can be understood that the aperture of the inner ring air outlet 3311 and the aperture of the outer ring air outlet 3312 can be the same or different.

[0091] Optionally, the diameter of the inner ring air outlet hole 3311 is 1.5 mm, and the diameter of the outer ring air outlet hole 3312 is 1.5 mm.

[0092] According to a large number of experimental tests, the optimal apertures of the inner ring air outlet holes 3311 and the outer ring air outlet holes 3312 are both 1.5 mm.

[0093] The embodiment of the present disclosure provides a gas stove, comprising a housing and a blast burner 10 for the gas stove, wherein the blast burner 10 is arranged in the housing.

[0094] The gas stove provided in the embodiment of the present disclosure includes the blast burner 10 of any one of the previous embodiments, and thus has all the beneficial effects of the blast burner 10 of any one of the previous embodiments, which will not be described in detail here.

[0095] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A blast burner for a gas stove, characterized in that: include: The burner assembly comprises an ejector tube, wherein the ejector tube is provided with an air inlet; The fan mounting plate is arranged at the air inlet, and comprises an air storage cavity and a mounting portion, wherein one end of the mounting portion is connected to the air storage cavity; A fan, disposed at the other end of the mounting portion, for generating primary air; The air storage chamber is configured to store the primary air generated by the fan and introduce the primary air into the ejection pipe.

2. The blast burner according to claim 1, characterized in that: The air storage cavity is a flat structure, and the mounting portion is arranged on the periphery of the air storage cavity.

3. The blast burner according to claim 2, characterized in that: The air storage cavity includes an air inlet end arranged in the length direction of the air storage cavity, and the mounting portion includes: The flared portion connects the air storage cavity and the fan and includes a large end and a small end extending along the length direction; Among them, the large head end is connected to the fan, and the small head end is connected to the air inlet end to guide the primary air generated by the fan to flow into the air storage cavity.

4. The blast burner according to claim 3, characterized in that: There is a gap between the fan and the small end.

5. The blast burner according to any one of claims 1 to 4, characterized in that: The fan mounting plate also includes: An inner blast plate, disposed at the air inlet, comprising an air outlet hole communicated with the air inlet; The outer blast plate is connected to the inner blast plate and together with the inner blast plate, encloses an air storage cavity; The primary air in the air storage cavity flows into the ejector tube through the air outlet.

6. The blast burner according to claim 5, characterized in that: The fan mounting plate is also provided with a nozzle mounting port, which is used to mount the nozzle of the blast burner; there are multiple air outlet holes, which are symmetrically arranged on both sides of the nozzle mounting port and are connected to the air inlet of the ejector pipe.

7. The blast burner according to claim 6, characterized in that: The fan mounting plate is also provided with an ejection port, which is connected to the ejection pipe and the external space; the blast burner also includes: The air door is arranged at the nozzle installation opening and is located at the side of the outer air blast plate away from the ejection pipe, and can be rotated relative to the nozzle installation opening to adjust the flow area of ​​the ejection opening.

8. The blast burner according to claim 7, characterized in that: The nozzle mounting port, the air outlet hole and the ejection port together form an air outlet end face, the ejection tubes are arranged in one-to-one correspondence with the air outlet end faces, the number of ejection tubes is one or more, and the number of corresponding air outlet end faces is one or more.

9. The blast burner according to claim 5, characterized in that: The aperture of the air outlet is a, wherein 0.5 mm ≤ a ≤ 2.0 mm.

10. A gas stove, characterized in that: include: case; The blast burner according to any one of claims 1 to 9, arranged in a housing.

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