Air net for improving combustion efficiency and furnace end thereof

Abstract

According to the air net capable of improving the combustion efficiency and the furnace end of the air net, the air net is arranged on the upper portion of the furnace end shell, the air net and the furnace end shell are embedded and limited, the positions of the air holes are adjusted to the inner edge ring from the lower ring wall, the air outlet direction of the air holes is changed from the horizontal inward direction to the vertical upward direction, and the combustion efficiency is improved. Gas can vertically move upwards through the air holes, meanwhile, due to the fact that the horizontal height of the inner edge ring is lower than that of the through hole of the banking-up cover, part of the gas horizontally moves to the air holes through the through hole, the gas sprayed out of the air holes is laterally impacted, on the premise that it is guaranteed that the gas is evenly mixed, the gas can vertically rise upwards more directly, the flame concentration ratio is improved, and the combustion efficiency is improved. The combustion efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of burner heads, in particular to an air net and a burner head for improving combustion efficiency. Background Art

[0002] The burner is the part of the burner that mixes gas or liquefied gas with air and burns it, producing a high-temperature flame for heating or cooking. A traditional burner typically consists of a burner port, valve, flame holes, flame plate, burner bracket, and flame regulator.

[0003] The pressure-activated flame cover, also known as the burner or stove cap, is a crucial component of a gas stove. Its primary functions include: ignition: the flame holes on the flame cover allow the igniter to ignite the fire, ensuring the proper function of the gas stove; flame stabilization: the design of the flame cover influences the flame's stability, making it more concentrated and helping to improve combustion efficiency; flame control: by adjusting the size and number of the flame holes, the temperature and intensity of the flame can be adjusted to achieve the desired cooking effect; and gas leakage prevention: the special flame hole structure of the pressure-activated flame cover effectively prevents gas from leaking through the flame holes, ensuring gas safety within the stove.

[0004] The applicant recently improved the specific structure of various components of the burner structure of the stove head in order to achieve better and more complete combustion effects. For example, the patent publication number CN220287517U is a burner structure and stove body that improves the vaporization effect. The new pressure fire cover is a flat circular structure. A series of through holes are provided on the pressure fire cover along the periphery in the vertical direction. The gas directly passes through the through holes and is ejected from bottom to top for combustion. During actual use, the applicant found that the pressure fire cover with this structure cannot form an offset with the air holes on the outside of the stove head, resulting in poor combustion efficiency.

[0005] In order to improve the aforementioned problem of poor combustion efficiency, the applicant recently configured the fire pressure cover as a combination of a supporting ring plate, a ventilation ring wall and an upper sealing plate, so that the center of the fire pressure cover bulges upward to form a chamber, and provides multiple through holes on the side of the ventilation ring wall, so that the vaporized fuel or gas is output non-longitudinally outward through the multiple through holes, forming a counter-flow with the air holes on the outside of the burner head. After the counter-flow, the gas is mixed more evenly and rises straight upward, the flame is more concentrated, and the combustion efficiency is improved.

[0006] However, during actual use, the applicant found that when the air holes of the existing air network and the air holes of the fire suppression cover collide with each other, the airflow will mix in the collision area. After mixing, not all the gas can rise steadily upward, which affects the concentration of the flame to a certain extent, and thus affects the combustion efficiency. Utility Model Content

[0007] To this end, it is necessary to provide a burner head to solve the problem that when the air holes of the existing air network and the air holes of the fire pressure cover form an offset, the air flow will mix in the offset area. After mixing, not all the gas can rise stably upward, which to a certain extent affects the concentration of the flame and thus affects the combustion efficiency.

[0008] To achieve the above-mentioned purpose, the utility model provides a wind net for improving combustion efficiency, wherein the wind net ring is arranged on the outer periphery of the pressure fire cover inside the burner shell, and comprises an upper ring wall and a lower ring wall, wherein the upper edge of the upper ring wall extends horizontally outward with an extension portion, and the extension portion is used for interlocking and limiting with the burner shell; the lower edge of the lower ring wall extends horizontally inward with an inner edge ring, and a plurality of wind holes are provided on the inner edge ring, and the horizontal height of the inner edge ring is lower than the through hole of the pressure fire cover, and the gas in the burner can move vertically upward through the wind holes.

[0009] Furthermore, when the outer extension portion and the burner head shell are fitted and limited, the inner edge ring and the fire pressure cover are fitted with each other.

[0010] Furthermore, the structure in which the inner edge ring and the fire pressure cover are embedded with each other is a groove and a flange.

[0011] Furthermore, the inner diameter of the lower ring wall is smaller than the inner diameter of the upper ring wall, and the lower edge of the upper ring wall is connected to the upper edge of the lower ring wall through a horizontally arranged structural ring; the structural ring is provided with a plurality of air holes.

[0012] Furthermore, the air holes are all arranged close to the upper ring wall or the lower ring wall.

[0013] The present invention also provides a burner head, which includes an air network as described in any one of the above technical solutions.

[0014] Furthermore, it also includes a fire pressure cover, which includes a supporting ring plate, a ventilation ring wall and an upper sealing plate. The supporting ring plate is a hollow annular structure, the ventilation ring wall is connected to the inner edge of the supporting ring plate, and the upper sealing plate cover is arranged above the ventilation ring wall; a plurality of through holes are provided on the side of the ventilation ring wall.

[0015] Furthermore, the side wall of the fire pressure cover is provided with a plurality of through holes, and the plurality of through holes are arranged along the outer wall surface of the ventilation ring wall and are evenly distributed on the circumference of the outer wall surface of the ventilation ring wall, forming a through hole ring unit in the same horizontal plane.

[0016] Different from the existing technology, the above technical solution is achieved by setting the wind net on the upper part of the burner shell and interlocking it with the burner shell, and by adjusting the position of the wind hole from the lower ring wall to the inner edge ring, so that the gas outlet direction of the wind hole is changed from horizontal inward to vertical upward, and the gas can move vertically upward through the wind hole. At the same time, since the horizontal height of the inner edge ring is lower than the through hole of the fire pressure cover, a part of the gas moves horizontally through the through hole to the wind hole, and laterally impacts the gas ejected from the wind hole. On the premise of ensuring uniform mixing of the gas, it can rise more directly upward, thereby improving the flame concentration and the combustion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural perspective diagram of the air network for improving combustion efficiency according to a specific embodiment;

[0018] Figure 2 This is a structural perspective view from another angle of the wind network for improving combustion efficiency according to the specific embodiment;

[0019] Figure 3 A cross-sectional perspective view of a burner at a certain angle according to a specific embodiment;

[0020] Figure 4 It is a cross-sectional view of the burner according to the specific embodiment;

[0021] Figure 5 It is a partially enlarged cross-sectional view of the burner described in the specific implementation method.

[0022] Description of reference numerals:

[0023] 1. Burner;

[0024] 10. Wind net; 101. Upper ring wall; 102. Lower ring wall; 103. Outer extension; 104. Inner edge ring; 105. Wind hole; 106. Structural ring; 107. Groove;

[0025] 20. Fire pressure cover; 201. Through hole; 202. Support ring; 203. Ventilation ring wall; 204. Upper sealing plate; 205. Flange. DETAILED DESCRIPTION

[0026] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0027] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0028] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0029] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three possible relationships exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0030] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0031] Without further limitations, in this application, the words "include", "comprise", "have" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0032] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this manner, such as "multiple groups," "multiple times," etc., unless otherwise specifically defined.

[0033] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0034] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] See also Figures 1 to 5This embodiment provides a wind net 10 for improving combustion efficiency. The wind net 10 is arranged around the outer periphery of the pressure fire cover 20 inside the outer shell of the burner head 1 and includes an upper ring wall 101 and a lower ring wall 102. The upper ring wall 101 and the lower ring wall 102 are both cylindrical structures with openings at the top and bottom. The height of the upper ring wall 101 can be adjusted according to the space inside the burner head 1 and the size of the pressure fire cover 20. Specifically, the upper ring wall 101 has a height of 1.8 cm, a wall thickness of 0.3 cm, and an inner diameter of 10.5 cm. The lower ring wall 101 has a height of 2.0 cm, a wall thickness of 0.3 cm, and an inner diameter of 9.1 cm. An extension portion 103 extends horizontally outward from the upper edge of the upper annular wall 101. The extension portion 103 is a limiting structure protruding from the outer side of the upper annular wall 101. The extension portion 103 is used to engage with the outer shell of the burner head 1 for positioning. The extension portion 103 can be formed by a combination of multiple protrusions or a complete planar circular ring structure. It only needs to be able to engage with the protrusion structure on the inner wall of the outer shell of the burner head 1 to limit the air mesh 10 to a specified height within the outer shell of the burner head 1. For example, an annular protrusion is provided on the upper portion of the inner wall of the outer shell of the burner head 1. When the air mesh 10 is placed from top to bottom into the inner shell of the burner head 1, the lower portion of the extension portion 103 is supported by the annular protrusion and the outer periphery is limited by the inner wall of the outer shell of the burner head 1. This makes the air mesh 10 more stable within the inner shell of the burner head 1. Moreover, because the extension portion 103 and the annular protrusion are vertically stacked and supported, the gas in the furnace is not likely to overflow through this portion, thereby ensuring sealing. An inner ring 104 extends horizontally inward from the lower edge of the lower ring wall 102. The inner ring 104 is a planar annular structure, and its inner diameter can be adjusted according to the size of the pressure fire cover 20. When the air net 10 and the pressure fire cover 20 are both installed in the outer shell of the burner 1, the inner side wall of the inner ring 104 should fit as closely as possible with the outer side wall of the pressure fire cover 20 to improve airtightness. Specifically, the outer diameter of the inner ring 104 is 9.7 cm, the inner diameter is 71 cm, and the thickness is 0.4 cm. A plurality of air holes 105 are provided on the inner ring 104, and the air holes 105 can be channels of various shapes, such as round holes, square holes, diamond holes, etc. The horizontal height of the inner ring 104 is lower than the through hole 201 of the pressure fire cover 20, and the gas in the burner 1 can move vertically upward through the air holes 105.

[0036] Each part of the air mesh 10 can be integrally die-casted from a metal material, such as stainless steel, cast iron, or aluminum alloy. Preferably, the air mesh 10 can be made of cast iron, which has good heat preservation and durability and is suitable for use with a high-power burner 1.

[0037] The present invention arranges the wind net 10 on the upper part of the outer shell of the burner head 1 and engages and limits the outer shell of the burner head 1, and adjusts the position of the wind hole 105 from the lower ring wall 102 to the inner edge ring 104, so that the gas outlet direction of the wind hole 105 is changed from horizontal inward to vertical upward, and the gas can move vertically upward through the wind hole 105. At the same time, since the horizontal height of the inner edge ring 104 is lower than the through hole 201 of the fire pressure cover 20, a part of the gas moves horizontally to the wind hole 105 through the through hole 201, and laterally impacts the gas ejected from the wind hole 105. Under the premise of ensuring uniform mixing of the gas, the flame can rise more directly upward, thereby improving the flame concentration and the combustion efficiency.

[0038] In the existing structure of the burner head 1, the air net 10 and the pressure fire cover 20 are only fitted as closely as possible by means of preset dimensions. Due to the influence of processing cost and precision, the perfect fit between the two cannot be guaranteed, which may cause gas to overflow from between the air net 10 and the pressure fire cover 20, thereby causing the horizontal gas ejected from the pressure fire cover 20 to be unable to be completely mixed with the vertical gas ejected from the air net 10, affecting the combustion efficiency. Therefore, further, when the extension 103 and the burner head 1 shell are fitted and limited, the inner edge ring 104 and the pressure fire cover 20 are fitted together. By fitting together the inner edge ring 104 and the pressure fire cover 20, a gas blocking effect is achieved, air tightness is improved, gas is prevented from overflowing from the joint between the air net 10 and the pressure fire cover 20, the combustion efficiency of the flame is not affected, and the combustion stability is improved. The mutually fitting structure can be a threaded rotation fitting or a structure that can achieve the purpose of blocking the upward movement of gas. From the perspective of cost and ease of loading and unloading, preferably, the structure in which the inner edge ring 104 and the pressure fire cover 20 are interlocked is a groove 107 and a flange 205. The groove 107 or the flange 205 can be correspondingly arranged on the inner edge ring 104 or the pressure fire cover 20. For example, a groove 107 is provided on the lower side of the edge of the inner edge ring 104, and a flange 205 matching the groove 107 is provided on the upper part of the side wall of the pressure fire cover 20. When the wind net 10 is engaged and fixed with the outer shell of the burner head 1, the flange 205 on the pressure fire cover 20 can be embedded in the groove 107 on the inner edge ring 104, and at this time, the upper surface of the inner edge ring 104 should maintain a horizontal height lower than the through hole 201 of the pressure fire cover 20.

[0039] Furthermore, the inner diameter of the lower annular wall 102 is smaller than that of the upper annular wall 101. The lower edge of the upper annular wall 101 and the upper edge of the lower annular wall 102 are connected by a horizontally arranged structural ring 106. The structural ring 106 is provided with a plurality of air holes 105. By contracting the lower annular wall 102 inward, an air outlet chamber is formed between the lower annular wall 102, the structural ring 106, and the outer shell of the burner 1. This chamber communicates with the vaporization chamber within the burner 1. Gas can enter the air outlet chamber and be discharged upward through the air holes 105 in the structural ring 106, thereby forming a flame on the outer ring of the burner 1 and improving heating efficiency.

[0040] Furthermore, the air holes 105 are all located near the upper annular wall 101 or the lower annular wall 102. The air holes 105 are located near the upper annular wall 101 or the lower annular wall 102, and a certain gap is formed between the outer side and the lower side of the lower annular wall 102 and the outer shell of the burner head 1. The air holes 105 on the structural ring 106 are connected to the vaporization chamber inside the burner head 1 through the gap. Taking the air holes 105 on the inner edge ring 104 as an example, the gas can be output upward through the air holes 105 close to the lower annular wall 102, and the gas output from the through hole 201 of the pressure fire cover 20 rushes horizontally to the lower annular wall 102. After the two parts of gas mix, they move directly upward under the obstruction of the lower annular wall 102, further improving combustion efficiency.

[0041] The present invention further provides a burner head 1, which includes an air network 10 as described in any one of the above embodiments.

[0042] Furthermore, it also includes a fire pressure cover 20, which includes a support ring piece 202, a ventilation ring wall 203 and an upper sealing piece 204. The support ring piece 202 is a hollow annular structure, the ventilation ring wall 203 is connected to the inner edge of the support ring piece 202, and the upper sealing piece 204 is covered above the ventilation ring wall 203; a plurality of through holes 201 are provided on the side of the ventilation ring wall 203. By configuring the fire pressure cover 20 as a combination of the support ring piece 202, the ventilation ring wall 203 and the upper sealing piece 204, the center of the fire pressure cover 20 bulges upward to form a chamber, and a plurality of through holes 201 are provided on the side of the ventilation ring wall 203, so that the vaporized fuel or gas is output outward non-longitudinally through the plurality of through holes 201, forming a counter-attack with the air holes 105 on the outside of the burner head 1. The gas mixing after the counterattack is more uniform and rises straight upward, the flame is more concentrated, and the combustion efficiency is improved.

[0043] Furthermore, the sidewall of the fire cover 20 is provided with a plurality of through holes 201. These through holes 201 are arranged along the outer wall of the ventilation ring wall 203 and are evenly distributed around the circumference of the outer wall of the ventilation ring wall 203, forming a ring of through holes 201 units on the same horizontal plane. When gas enters the fire chamber at the center of the fire cover 20 from bottom to top, it impacts the upper sealing plate 204 and diffuses laterally, then is output to the outside through the multiple through holes 201 in the ring of through holes 201 units. This creates a more complete counterbalance to the gas output from the air holes 105 on the outside of the burner head 1, further improving the uniformity of mixing between the gas and air, thereby further enhancing combustion efficiency.

[0044] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present utility model. Therefore, based on the innovative concept of the present utility model, changes and modifications to the embodiments described herein, or equivalent structural or process transformations made using the contents of the present utility model specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields are all included in the scope of protection of the present utility model patent.

Claims

1. A wind net for improving combustion efficiency, wherein the wind net is arranged around the outer periphery of the fire pressure cover inside the burner shell, and is characterized by: It includes an upper ring wall and a lower ring wall. The upper edge of the upper ring wall extends horizontally outward with an extension portion, and the extension portion is used to engage and limit the burner head shell; the lower edge of the lower ring wall extends horizontally inward with an inner ring, and the inner ring is provided with multiple air holes. The horizontal height of the inner ring is lower than the through hole of the fire pressure cover, and the gas in the burner head can move vertically upward through the air holes.

2. The air network for improving combustion efficiency according to claim 1, characterized in that: When the outer extension part and the burner head shell are fitted and limited, the inner edge ring and the fire pressure cover are fitted with each other.

3. The air network for improving combustion efficiency according to claim 2, characterized in that: The structure in which the inner edge ring and the fire pressure cover are embedded with each other is a groove and a flange.

4. The air network for improving combustion efficiency according to claim 1, characterized in that: The inner diameter of the lower ring wall is smaller than that of the upper ring wall. The lower edge of the upper ring wall and the upper edge of the lower ring wall are connected via a horizontally arranged structural ring; a plurality of air holes are provided on the structural ring.

5. The air network for improving combustion efficiency according to claim 4, characterized in that: The air holes are all arranged near the upper ring wall or the lower ring wall.

6. A burner head, characterized in that: The burner head includes the air network according to any one of claims 1 to 5.

7. A burner according to claim 6, characterized in that: It also includes a fire pressure cover, which includes a supporting ring plate, a ventilation ring wall and an upper sealing plate. The supporting ring plate is a hollow annular structure. The ventilation ring wall is connected to the inner edge of the supporting ring plate, and the upper sealing plate is arranged above the ventilation ring wall; a plurality of through holes are provided on the side of the ventilation ring wall.

8. The burner according to claim 7, characterized in that: The side wall of the fire pressure cover is provided with a plurality of through holes, which are arranged along the outer wall surface of the ventilation ring wall and are evenly distributed on the circumference of the outer wall surface of the ventilation ring wall, forming a through hole ring unit in the same horizontal plane.

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