Nozzle seat with adjustable nozzle column, burner and hob
Patent Information
- Application Number
- CN202410061355.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2044-01-16
AI Technical Summary
[0003]但现阶段同一款型号的燃烧器中,喷嘴座上的喷嘴与引射管的距离不可调,而由于不同地域的供气压力以及环境气压不同,因此,由喷嘴喷出的燃气的压力和喷气量均不相同,导致燃气易出现与空气混合不充分及不均匀的情况,影响燃气的充分燃烧和形成火焰的质量
[0015] The present invention provides an adjustable nozzle holder, comprising a seat body, a cover plate, a sealing element, and a nozzle column; a gas chamber is formed on the seat body, and an outlet communicating with the gas chamber is also formed on the seat body, a limiting protrusion is formed on the edge of the outlet, the sealing element is sleeved on the limiting protrusion, the cover plate is slidably connected to the seat body, and the cover plate is provided to cover the outlet and can be sealed with the sealing element; the nozzle column is disposed on the cover plate and is communicating with the gas chamber.
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Figure CN117704382B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of gas stove technology, and in particular to an adjustable nozzle holder, burner, and stove. Background Technology
[0002] When using an upward-intake burner, the nozzle outlet and the ejector tube are spaced apart, so that when the gas is injected from the nozzle outlet to the ejector tube, it can be mixed with the air once. The full and uniform mixing of gas and air can greatly improve the combustion quality and reduce carbon monoxide emissions.
[0003] However, at present, the distance between the nozzle and the ejector tube on the nozzle seat of the same model of burner is not adjustable. Due to the different gas supply pressure and ambient gas pressure in different regions, the pressure and amount of gas ejected from the nozzle are different, which makes it easy for the gas to be insufficiently and unevenly mixed with air, affecting the complete combustion of gas and the quality of flame formation.
[0004] Therefore, there is an urgent need to provide an adjustable nozzle holder, burner, and stove to address the problems existing in the prior art to some extent. Summary of the Invention
[0005] The purpose of this invention is to provide an adjustable nozzle holder, burner, and stove, so as to optimize the nozzle holder structure to a certain extent, make the nozzle column adjustable, and achieve complete combustion of gas and the quality of the flame formed.
[0006] The present invention provides an adjustable nozzle holder, comprising a seat body, a cover plate, a sealing element, and a nozzle column; a gas chamber is formed on the seat body, and a gas outlet communicating with the gas chamber is also formed on the seat body, a limiting protrusion is formed on the edge of the gas outlet, the sealing element is sleeved on the limiting protrusion, the cover plate is slidably connected to the seat body, and the cover plate is configured to cover the gas outlet and can be sealed with the sealing element; the nozzle column is disposed on the cover plate and is communicating with the gas chamber.
[0007] The adjustable nozzle holder provided by the present invention further includes a limiting member, which is connected to the seat body. A strip-shaped hole is formed on the cover plate corresponding to the position of the limiting member. The limiting member is disposed in the strip-shaped hole so that the cover plate can slide relative to the seat body along the extension direction of the strip-shaped hole.
[0008] Specifically, the diameter of the end of the limiting member away from the seat is greater than the width of the strip hole.
[0009] Specifically, a positioning hole is formed on the base, the positioning hole is a screw hole, the limiting member is a bolt, the limiting member is detachably connected to the base, and the threaded section of the limiting member can be screwed into or out of the screw hole.
[0010] Furthermore, there are two positioning holes, which are arranged opposite to each other on both sides of the nozzle column. The number of strip holes formed on the cover plate is the same as the number of positioning holes, and the positions of the strip holes and the positioning holes correspond to each other.
[0011] The limiting protrusion has an waist-shaped structure, and the cover plate forms a limiting groove on the side facing the limiting protrusion. The limiting groove has the same shape as the limiting protrusion, and the dimension of the limiting groove in the length direction is larger than the dimension of the limiting protrusion in the length direction.
[0012] Specifically, the end face of the seal away from the seat is higher than the end face of the limiting protrusion away from the seat.
[0013] Furthermore, there are multiple gas chambers, and the cover plate is provided in a one-to-one correspondence with each gas chamber. The sealing element is provided in a one-to-one correspondence with the limiting protrusion formed by the edge of the gas chamber, and the nozzle column is provided in a one-to-one correspondence with the cover plate.
[0014] Compared with the prior art, the adjustable nozzle holder provided by the present invention has the following advantages:
[0015] The present invention provides an adjustable nozzle holder, comprising a seat body, a cover plate, a sealing element, and a nozzle column; a gas chamber is formed on the seat body, and an outlet communicating with the gas chamber is also formed on the seat body, a limiting protrusion is formed on the edge of the outlet, the sealing element is sleeved on the limiting protrusion, the cover plate is slidably connected to the seat body, and the cover plate is provided to cover the outlet and can be sealed with the sealing element; the nozzle column is disposed on the cover plate and is communicating with the gas chamber.
[0016] Analysis shows that the gas chamber formed on the seat allows gas to enter, while the gas outlet on the seat, which connects to the gas chamber, allows gas to be output. Correspondingly, a limiting protrusion is formed at the edge of the gas outlet, and a sealing element is fitted onto the limiting protrusion. The cover plate covers the gas outlet and is sealed to the sealing element. Thus, the cover plate slides against the seat, ensuring the sealing performance between the cover plate and the sealing element and preventing gas leakage from the gap between the cover plate and the limiting protrusion, while also allowing the cover plate to slide relative to the seat.
[0017] It is understandable that, since the nozzle column in this application is mounted on the cover plate, the position of the nozzle column can be changed when the cover plate slides relative to the seat. Because the nozzle column in this application is connected to the gas chamber, gas can be ejected from the nozzle of the nozzle column. Therefore, by adjusting the position of the nozzle column, the distance between the gas and air before the gas enters the injector tube can be optimized. This, in turn, can improve the uniformity of gas-air mixing to a certain extent, based on the gas supply pressure and atmospheric pressure in different regions, thereby improving combustion quality and reducing carbon monoxide formation.
[0018] In addition, the present invention also provides a burner, including the above-mentioned adjustable nozzle column nozzle seat and burner head; the burner head has a guide groove formed at the position corresponding to the nozzle column, and the length of the guide groove is not less than the movable distance of the nozzle column.
[0019] In practical applications, the burner head is located above the nozzle seat so that the nozzle column can correspond to the injector tube of the burner head. However, the nozzle column provided in this application can move relative to the seat. Therefore, in order to ensure the smooth movement of the nozzle column, a guide groove is formed at the position of the burner head corresponding to the nozzle column, and the length of the guide groove is not less than the movable distance of the nozzle column, so as to avoid the influence of the burner head on the movement of the nozzle column.
[0020] In addition, the present invention also provides a stove including the above-described burner.
[0021] The stove using the burner provided in this application can adjust the distance of the gas to the injector tube by finely adjusting the nozzle column, thereby enabling the gas to mix more evenly with the air, improving the combustion quality and enhancing the user experience. Attached Figure Description
[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of the adjustable nozzle holder before nozzle column adjustment provided in an embodiment of the present invention;
[0024] Figure 2 This is a schematic diagram of the adjusted nozzle column structure in the adjustable nozzle holder provided in an embodiment of the present invention.
[0025] Figure 3 This is a schematic diagram of the structure of the seat body in the adjustable nozzle holder provided in an embodiment of the present invention;
[0026] Figure 4 A cross-sectional view of a burner provided in an embodiment of the present invention.
[0027] In the diagram: 1-base; 101-gas chamber; 102-limiting protrusion; 103-positioning hole; 104-air inlet; 2-cover plate; 201-strip hole; 202-limiting groove; 3-sealing element; 4-nozzle column; 5-limiting element; 6-burner head; 601-guide groove;
[0028] S1 - First direction; S2 - Second direction. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0030] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0031] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0032] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0033] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.
[0034] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.
[0035] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.
[0036] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.
[0037] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0038] like Figures 1-3As shown, the present invention provides an adjustable nozzle holder with nozzle column 4, including a seat body 1, a cover plate 2, a sealing element 3, and a nozzle column 4; a gas chamber 101 is formed on the seat body 1, and an outlet communicating with the gas chamber 101 is also formed on the seat body 1. A limiting protrusion 102 is formed on the edge of the outlet, and the sealing element 3 is sleeved on the limiting protrusion 102. The cover plate 2 is slidably connected to the seat body 1, and the cover plate 2 is provided to cover the outlet and can be sealed with the sealing element 3; the nozzle column 4 is disposed on the cover plate 2 and is connected to the gas chamber 101.
[0039] Compared with the prior art, the adjustable nozzle holder with nozzle column 4 provided by the present invention has the following advantages:
[0040] The adjustable nozzle seat with nozzle column 4 provided by the present invention allows gas to enter the seat 1 through the gas chamber 101 formed on the seat 1, and gas can be output through the gas outlet formed on the seat 1 that can communicate with the gas chamber 101. Correspondingly, a limiting protrusion 102 is formed on the edge of the gas outlet, and a sealing member 3 is sleeved on the limiting protrusion 102. The cover plate 2 covers the gas outlet and is sealed to the sealing member 3. Thus, the cover plate 2 is slidably connected to the seat 1, which can not only ensure the sealing performance between the cover plate 2 and the sealing member 3 and prevent gas from leaking from the gap between the cover plate 2 and the limiting protrusion 102, but also allow the cover plate 2 to slide relative to the seat 1.
[0041] It is understood that since the nozzle column 4 in this application is mounted on the cover plate 2, the position of the nozzle column 4 can be changed when the cover plate 2 slides relative to the seat 1. Because the nozzle column 4 in this application is connected to the gas chamber 101, gas can be ejected from the nozzle of the nozzle column 4. Therefore, by adjusting the position of the nozzle column 4, the distance between the gas and air before the gas enters the ejector tube can be optimized. This, in turn, can improve the uniformity of gas-air mixing to a certain extent, based on the gas supply pressure and atmospheric pressure in different regions, thereby improving combustion quality and reducing carbon monoxide formation.
[0042] It should be noted that the base 1 in this application also has an air inlet 104, through which gas enters the gas chamber 101 and is then ejected by the nozzle of the nozzle column 4 connected to the gas chamber 101.
[0043] Optionally, such as Figure 1 Combination Figure 2 As shown, the adjustable nozzle seat of the nozzle column 4 provided by the present invention also includes a limiting member 5. The limiting member 5 is connected to the seat body 1. A strip hole 201 is formed on the cover plate 2 at the position corresponding to the limiting member 5. The limiting member 5 is disposed in the strip hole 201 so that the cover plate 2 can slide relative to the seat body 1 along the extension direction of the strip hole 201.
[0044] The limiting member 5 in this application is detachably connected to the base 1, and when the limiting member 5 is connected to the base 1, the position of the limiting member 5 relative to the base 1 is fixed, so that the sliding distance and sliding direction of the cover plate 2 can be limited through the strip hole 201.
[0045] Preferably, such as Figure 1 As shown, the diameter of the end of the limiting member 5 away from the seat 1 in this application is greater than the width of the strip hole 201.
[0046] By making the diameter of the end of the limiting member 5 away from the seat 1 larger than the diameter of the strip hole 201, the end of the limiting member 5 can abut against the end face of the strip hole 201, thereby limiting the cover plate 2. That is, by limiting the cover plate 2, the cover plate 2 can only move along the extension direction of the strip hole 201, and will not lift up in the vertical direction. This can ensure the sealing between the cover plate 2 and the sealing member 3 to a certain extent and avoid the risk of gas leakage.
[0047] More preferably, such as Figures 1-3 As shown, in this application, a positioning hole 103 is formed on the base 1. The positioning hole 103 is a screw hole, and the limiting member 5 is a bolt. The limiting member 5 is detachably connected to the base 1, and the threaded section of the limiting member 5 can be screwed into or out of the screw hole.
[0048] The limiting member 5 in this application is a bolt, and the positioning hole 103 formed on the base 1 is a screw hole. On the one hand, the limiting member 5 and the base 1 can be quickly disassembled and assembled. On the other hand, when the limiting member 5 is connected to the base 1, the end face of the strip hole 201 can be stably limited by the end of the limiting member 5.
[0049] Understandably, by using the bolts and screw holes, when the nozzle column 4 needs to be moved, the limiting member 5 can be screwed out of the positioning hole 103 by a certain distance, thereby moving the cover plate 2 and realizing the movement of the nozzle column 4. After the nozzle column 4 is adjusted to the correct position, the limiting member 5 can be screwed into the positioning hole 103, and the end of the limiting member 5 away from the positioning hole 103 abuts against the end of the strip hole 201 away from the seat 1. This allows the limiting member 5 to apply downward pressure to the end of the strip hole 201, thereby making the cover plate 2 and the sealing member 3 fit more tightly, ensuring the airtightness between them, avoiding the risk of gas leakage, and further improving the safety of use.
[0050] Optionally, such as Figures 1-3 As shown, there are two positioning holes 103 in this application, which are arranged opposite to each other on both sides of the nozzle column 4. The number of strip holes 201 formed on the cover plate 2 is the same as the number of positioning holes 103, and the positions of the strip holes 201 and the positioning holes 103 correspond to each other.
[0051] By setting a positioning hole 103 on each side of the limiting protrusion 102, and forming a strip hole 201 on the cover plate 2 corresponding to the positioning hole 103, the force on the cover plate 2 can be more even, avoiding the problems of displacement and jamming during the adjustment process.
[0052] Furthermore, by setting two positioning holes 103, two limiting members 5 can be connected accordingly. The two limiting members 5 can further increase the downward pressure on the cover plate 2, thereby ensuring the fit between the cover plate 2 and the sealing member 3, ensuring airtightness, and avoiding the problem of gas leakage.
[0053] Therefore, it is understood that, in order to further ensure the sealing performance, the end face of the sealing member 3 away from the seat 1 is higher than the end face of the limiting protrusion 102 away from the seat 1. Thus, when the limiting member 5 is screwed into the positioning hole 103 to drive the cover plate 2 to press down, it can compress the sealing member 3 and ensure the airtightness between the cover plate 2 and the sealing member 3.
[0054] Optionally, such as Figure 3 As shown, the limiting protrusion 102 in this application has a waist-shaped structure. The cover plate 2 forms a limiting groove 202 on the side facing the limiting protrusion 102. The limiting groove 202 has the same shape as the limiting protrusion 102, and the dimension of the limiting groove 202 in the length direction is larger than the dimension of the limiting protrusion 102 in the length direction.
[0055] Since the cover plate 2 covers the limiting protrusion 102 and slides relative to the seat 1 in this application, the cover plate 2 actually slides based on the limiting protrusion 102. By forming a limiting groove 202 on the side of the cover plate 2 facing the limiting protrusion 102, and making the dimension of the limiting groove 202 in the length direction larger than the dimension of the limiting protrusion 102 in the length direction, space can be provided for the sliding of the cover plate 2.
[0056] It is understandable that, in order to ensure the relative sliding of the cover plate 2 and the sealing effect between it and the sealing element 3, the dimension of the limiting groove 202 in the length direction is greater than the dimension of the limiting protrusion 102 in the length direction in this application. This means that the length of the limiting groove 202 is greater than the cumulative dimension of the two in the length direction after the sealing element 3 is fitted onto the limiting protrusion 102.
[0057] It should be further clarified here that the width of the strip hole 201 mentioned above refers to the dimension of the strip hole 201 in the second direction S2, while the dimensions of the limiting groove 202 and the limiting protrusion 102 in the length direction refer to the dimensions of the limiting groove 202 and the limiting protrusion 102 in the first direction S1. Accordingly, the first direction S1 is the length direction of the base 1, and the second direction S2 is the width direction of the base 1.
[0058] Accordingly, the width dimension of the limiting groove 202 in this application is slightly smaller than that of the sealing element 3 after it is fitted onto the limiting protrusion 102, while the cumulative width dimension of the two is the same. It can be understood that the slightly smaller width dimension of the limiting groove 202 means that after the limiting groove 202 is set corresponding to the limiting protrusion 102 and the sealing element 3, the two sidewalls of the limiting groove 202 in the width direction can slightly compress the sealing element 3, causing a small degree of pressure deformation in the sealing element 3. This ensures a good sealing effect without excessively affecting the sliding of the cover plate 2. The same size ensures smooth sliding of the cover plate 2 and guarantees a certain degree of sealing.
[0059] Optionally, such as Figure 3 As shown, there are multiple gas chambers 101 in this application. The cover plate 2 is provided in a one-to-one correspondence with the gas chamber 101. The sealing element 3 is provided in a one-to-one correspondence with the limiting protrusion 102 formed by the edge of the gas chamber 101. The nozzle column 4 is provided in a one-to-one correspondence with the cover plate 2.
[0060] Since existing burners require outer, middle, and inner ring flames, forming multiple gas chambers 101 on the base 1 provides a basis for the formation of these flames. Correspondingly, limiting protrusions 102 are formed at the edges of the gas chamber 101 outlets. By aligning the cover plate 2 with each gas chamber 101, the positions of the nozzle columns 4 corresponding to the multiple gas chambers 101 can be adjusted, ensuring that the gas flowing from each gas chamber 101 mixes evenly with air and guarantees combustion quality.
[0061] In addition, such as Figure 4 As shown, the present invention also provides a burner, including the above-mentioned adjustable nozzle seat of nozzle column 4 and burner head 6; the burner head 6 has a guide groove 601 formed at the position corresponding to the nozzle column 4, and the length of the guide groove 601 is not less than the movable distance of nozzle column 4.
[0062] In practical applications, the burner head 6 is located above the nozzle seat so that the nozzle column 4 can correspond to the ejector tube of the burner head 6. However, the nozzle column 4 provided in this application can move relative to the seat 1. Therefore, in order to ensure the smooth movement of the nozzle column 4, a guide groove 601 is formed at the position of the burner head 6 corresponding to the nozzle column 4, and the length of the guide groove 601 is not less than the movable distance of the nozzle column 4, so as to avoid the influence of the burner head 6 on the movement of the nozzle column 4.
[0063] In addition, the present invention also provides a stove including the above-described burner.
[0064] The stove using the burner provided in this application can adjust the distance of the gas to the injector tube by finely adjusting the nozzle column 4, thereby enabling the gas to mix more evenly with the air, improving the combustion quality and enhancing the user experience.
[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An adjustable nozzle holder, characterized in that, Includes the base, cover plate, seals, and nozzle column; A gas chamber is formed on the seat body, and an outlet communicating with the gas chamber is also formed on the seat body. A limiting protrusion is formed on the edge of the outlet. The sealing element is sleeved on the limiting protrusion. The cover plate is slidably connected to the seat body, and the cover plate covers the outlet and can be sealed with the sealing element. The nozzle column is disposed on the cover plate and is connected to the gas chamber; The limiting protrusion has an waist-shaped structure, and the cover plate forms a limiting groove on the side facing the limiting protrusion. The limiting groove has the same shape as the limiting protrusion, and the dimension of the limiting groove in the length direction is larger than the dimension of the limiting protrusion in the length direction.
2. The adjustable nozzle holder according to claim 1, characterized in that, It also includes a limiting member, which is connected to the base body. A strip-shaped hole is formed on the cover plate corresponding to the position of the limiting member. The limiting member is disposed in the strip-shaped hole so that the cover plate can slide relative to the base body along the extension direction of the strip-shaped hole.
3. The adjustable nozzle holder according to claim 2, characterized in that, The diameter of the end of the limiting member away from the seat is greater than the width of the strip hole.
4. The adjustable nozzle holder according to claim 2, characterized in that, The base has a positioning hole, which is a screw hole. The limiting member is a bolt. The limiting member is detachably connected to the base, and the threaded section of the limiting member can be screwed into or out of the screw hole.
5. The adjustable nozzle holder according to claim 4, characterized in that, There are two positioning holes, which are arranged opposite to each other on both sides of the nozzle column. The number of strip holes formed on the cover plate is the same as the number of positioning holes, and the positions of the strip holes and the positioning holes correspond to each other.
6. The adjustable nozzle holder according to claim 1, characterized in that, The end face of the seal, away from the seat, is higher than the end face of the limiting protrusion, away from the seat.
7. The adjustable nozzle holder according to claim 1, characterized in that, The gas chambers are multiple, and the cover plates are arranged one-to-one with the gas chambers. The sealing elements are arranged one-to-one with the limiting protrusions formed by the edges of the gas chambers, and the nozzle columns are arranged one-to-one with the cover plates.
8. A burner, characterized in that, Includes the adjustable nozzle holder and the furnace head as described in any one of claims 1-7; The burner head has a guide groove formed at the position of the nozzle column, and the length of the guide groove is not less than the movable distance of the nozzle column.
9. A stove, characterized in that, Includes the burner described in claim 8 above.
Citation Information
Patent Citations
Nozzle adjusting device capable of adapting to multiple gas sources
CN109539323A
Primary air conditioning device of upper air inlet combustor
CN209101279U