Infrared metal honeycomb and infrared metal burner

Abstract

The present invention belongs to the technical field of household gas appliances, and specifically relates to an infrared metal honeycomb and an infrared metal burner. The infrared metal honeycomb includes a plurality of blocking components, each of which is connected to each layer of the coils to block the heat radiation from the direction of the air outlet of the honeycomb hole; each of the blocking components also forms an airflow channel with the adjacent coils to transport gas to the honeycomb hole; in the air intake direction, the cross-sectional area of ​​the airflow channel is smaller than the cross-sectional area of ​​the honeycomb hole. The infrared metal burner includes a burner body, and the infrared metal honeycomb body mentioned above; the infrared metal honeycomb body is located in the burner body. The present invention can effectively solve the problem that the current infrared metal honeycomb body has a high probability of backfire.

Description

Technical Field

[0001] The invention belongs to the technical field of household gas appliances, and in particular relates to an infrared metal honeycomb body and an infrared metal burner. Background Art

[0002] Currently, infrared metal honeycombs on the market are mostly made of single or multiple layers of metal strips stacked, wound or wrapped, with honeycomb holes formed inside the honeycomb for mixed gas to flow through. However, the current infrared honeycombs have the risk of flashback during ignition and combustion, and the heat reflection from the bottom of the pot will enter the burner through the honeycomb holes, increasing the internal temperature of the burner and the probability of flashback, posing a safety hazard. Summary of the invention

[0003] In order to solve the problem that the current infrared metal honeycomb has a high probability of tempering, the present invention provides an infrared metal honeycomb.

[0004] The present invention also provides an infrared metal burner using the infrared metal honeycomb body.

[0005] In order to solve the above problems, the present invention adopts the following solutions:

[0006] An infrared metal honeycomb body is an annular layered structure formed by winding a metal belt, and honeycomb holes for gas flow are formed between two adjacent winding circles.

[0007] It also includes a plurality of blocking components, each of which is connected to each layer of the coiled coils to block heat radiation from the direction of the air outlet of the honeycomb holes; each of the blocking components also forms an air flow channel with the adjacent coiled coils to transport gas to the honeycomb holes; in the air inlet direction, the cross-sectional area of ​​the air flow channel is smaller than the cross-sectional area of ​​the honeycomb holes.

[0008] A further improvement on the infrared metal honeycomb body of the present invention is that the blocking component is arranged at the air inlet of the honeycomb hole.

[0009] A further improvement on the infrared metal honeycomb body of the present invention is that the blocking component includes a reflecting portion; the reflecting surface of the reflecting portion faces the air outlet direction of the honeycomb holes and is used to reflect thermal radiation from the air outlet direction of the honeycomb holes.

[0010] A further improvement of the infrared metal honeycomb body of the present invention is that the edges of the windings of each layer adjacent to the openings of the honeycomb holes are sequentially turned toward the adjacent windings to form the blocking assembly.

[0011] A further improvement of the infrared metal honeycomb body of the present invention is that each layer of windings is provided with protrusions, and the protrusions of two adjacent layers of windings are arranged in a staggered manner.

[0012] A further improvement on the infrared metal honeycomb body of the present invention is that the number of the metal strip is one, and the protrusions are provided on the metal strip.

[0013] A further improvement on the infrared metal honeycomb body of the present invention is that the number of the metal strips is at least two; each of the metal strips is provided with a protrusion; when a plurality of the metal strips are stacked, the protrusions on any two adjacent metal strips are staggered; and the infrared metal honeycomb body is formed by winding a plurality of stacked metal strips.

[0014] A further improvement on the infrared metal honeycomb body of the present invention is that at least n rows of protrusions are arranged on one of the two adjacent metal strips, and at least n+1 rows of protrusions are arranged on the second metal strip, where n is a positive integer not less than 1.

[0015] A further improvement on the infrared metal honeycomb body of the present invention is that the protrusions are hollow protrusions, and the hollow parts of the hollow protrusions are all connected to the honeycomb holes.

[0016] The infrared metal burner of the present invention comprises a burner body and the infrared metal honeycomb body mentioned above; the infrared metal honeycomb body is located in the burner body.

[0017] Compared with the prior art, the beneficial effects of the present invention using the above scheme are:

[0018] Because each blocking assembly is connected to each layer of the winding ring and can reflect the heat radiation from the direction of the honeycomb hole outlet back to the honeycomb hole outlet, it can prevent the heat radiation from entering the burner, thereby reducing the temperature inside the burner and reducing the probability of flashback.

[0019] Also, because each blocking component also forms an air flow channel with the adjacent winding ring for transporting gas to the honeycomb holes; in the air intake direction, the cross-sectional area of ​​the air flow channel is smaller than the cross-sectional area of ​​the honeycomb holes, so the flow velocity of the mixed gas will be increased after passing through the air flow channel, thereby effectively reducing the probability of tempering and solving the problem of high tempering probability of current infrared metal honeycomb bodies.

[0020] The infrared metal burner of the present invention can at least reduce the probability of tempering, and can solve the problem that the current infrared metal honeycomb has a high probability of tempering. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of a top view structure of an infrared metal honeycomb body provided by an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of four stacked metal strips of an infrared metal honeycomb provided by an embodiment of the present invention, wherein the arrows in the figure represent the flow direction of the mixed gas;

[0023] Figure 3 yes Figure 2 A right view of the structure, in which the arrows represent the flow direction of the mixed gas;

[0024] Figure 4 yes Figure 2 The enlarged structural diagram of A in the figure, the arrows in the figure represent the flow direction of the mixed gas;

[0025] In the figure: 1, metal belt; 2, honeycomb hole; 3, blocking component; 11, protrusion; 31, air flow channel. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "center", "up", "down", "front", "back", "left", "right", "axial", "radial", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical 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 ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example 1

[0032] This embodiment provides an infrared metal honeycomb body, which is an annular layered structure formed by winding a metal strip 1, and a honeycomb hole 2 for gas flow is formed between two adjacent winding circles. Figure 1 When the infrared metal honeycomb is applied to the infrared metal burner, the mixed gas of gas and air enters from the air inlet of the honeycomb hole 2, flows axially upward along the honeycomb hole 2, and the mixed gas is ignited and burned in the honeycomb hole 2. Because the flow rate of the mixed gas is slow, there is a risk of flashback; and the heat reflected by the bottom of the pot will enter the burner through the honeycomb hole 2, thereby increasing the internal temperature of the burner and the probability of flashback, which poses a safety hazard.

[0033] In order to solve the above problems, the infrared metal honeycomb body of this embodiment also includes a plurality of blocking components 3, each blocking component 3 is connected to each layer of winding coils for blocking the heat radiation from the air outlet direction of the honeycomb hole 2; each blocking component 3 also forms an air flow channel 31 between the winding coils adjacent thereto for transporting gas to the honeycomb hole 2; in the air inlet direction, the cross-sectional area of ​​the air flow channel 31 is smaller than the cross-sectional area of ​​the honeycomb hole 2.

[0034] Because each blocking component 3 is connected to each layer of the winding ring and can reflect the heat radiation from the air outlet direction of the honeycomb hole 2 back to the air outlet of the honeycomb hole 2, it can prevent the heat radiation from entering the burner, thereby reducing the temperature inside the burner and reducing the probability of flashback.

[0035] Also, because each blocking component 3 also forms an air flow channel 31 with the adjacent winding ring for conveying gas to the honeycomb hole 2; and in the air intake direction, the cross-sectional area of ​​the air flow channel 31 is smaller than the cross-sectional area of ​​the honeycomb hole 2, the flow velocity of the mixed gas will be increased after passing through the air flow channel 31, thereby effectively reducing the probability of tempering and solving the problem of a high probability of tempering in the current infrared metal honeycomb body.

[0036] Furthermore, the blocking component 3 is arranged at the air inlet of the honeycomb hole 2; the mixed gas is accelerated after passing through the air flow channel 31, and then enters the honeycomb hole 2, and moves at a faster flow rate in the honeycomb hole 2, further reducing the probability of backfire.

[0037] Furthermore, the blocking component 3 includes a reflecting part; the reflecting surface of the reflecting part faces the air outlet of the honeycomb hole 2 and is used to reflect the heat radiation from the air outlet of the honeycomb hole 2; the reflecting part can reflect the heat from the air outlet of the honeycomb hole 2 back to the air outlet, thereby effectively blocking part of the heat from entering the burner and reducing the temperature inside the burner; the heat emitted by the reflecting part will heat the bottom of the pot, so as to improve the utilization rate of the heat. The reflecting part is metal, such as foil.

[0038] Furthermore, because the infrared metal honeycomb body of this embodiment is an annular layered structure formed by winding a metal belt 1, in order to reduce production costs and further improve production efficiency, the edges of each layer of winding circles adjacent to the honeycomb hole 2 are sequentially flanged toward the adjacent winding circles to form a blocking component 3.

[0039] At this time, the blocking component 3 is located at the air inlet of the honeycomb hole 2, and because the blocking component 3 is formed by the flanging of the metal strip 1, it is avoided to add additional parts to the infrared metal honeycomb body, thereby reducing production costs. Also because the blocking component 3 is made of metal, the blocking component 3 itself has the function of reflecting heat, which can reflect the heat from the bottom of the pot back to the bottom of the pot, reduce the temperature inside the burner, and reduce the probability of tempering.

[0040] In the specific production process, the metal strip 1 needs to be flanged in the extension direction first, and then the flanged metal strip 1 is coiled to form an annular layered structure to obtain an infrared metal honeycomb body.

[0041] "Sequentially" means that the edges of all the coils are turned toward the central axis of the infrared metal honeycomb body, or the edges of all the coils are turned away from the central axis of the infrared metal honeycomb body. The purpose is to improve the appearance and reduce the air inlet of each honeycomb hole 2.

[0042] Furthermore, in order to increase the stability of the honeycomb holes 2, protrusions 11 are provided on each layer of windings, and the protrusions 11 of two adjacent layers of windings are staggered.

[0043] Preferably, in order to increase the porosity of the infrared metal honeycomb body and improve the ventilation efficiency, the protrusions 11 are hollow protrusions, and the hollow parts of the hollow protrusions are connected to the honeycomb holes 2.

[0044] The phrase “the hollow parts of the hollow protrusions are all connected to the honeycomb holes 2” means that the hollow parts of the hollow protrusions are connected to the honeycomb holes 2 where the hollow protrusions are located, and are also connected to the honeycomb holes 2 adjacent thereto.

[0045] Preferably, the protrusion 11 is in the shape of a column, a triangular column, or a semi-cylinder, which can increase the contact area between the protrusion 11 and the metal belt 1 , thereby increasing the stability of the honeycomb hole 2 .

[0046] Furthermore, the number of the metal strips 1 is one, and each metal strip 1 is provided with protrusions 11. When the metal strips 1 are wound to form an infrared metal honeycomb body of an annular layered structure, the protrusions 11 on two adjacent winding circles are arranged in a staggered manner.

[0047] Furthermore, the number of metal strips 1 is at least two; each metal strip 1 is provided with a protrusion 11; when multiple metal strips 1 are stacked, the protrusions 11 on any two adjacent metal strips 1 are staggered; the infrared metal honeycomb body is formed by winding multiple stacked metal strips 1.

[0048] Preferably, at least n rows of protrusions 11 are arranged at intervals on one of the two adjacent metal strips 11 , and at least n+1 rows of protrusions 11 are arranged at intervals on the other metal strip, where n is a positive integer not less than 1.

[0049] Preferably, the rows of protrusions 11 on each metal strip 1 are arranged parallel to each other.

[0050] For example, Figure 2-Figure 4 As shown, there are four metal strips 1, the first metal strip is provided with three rows of protrusions 11 at intervals, and the three rows of protrusions 11 are parallel to each other; the second metal strip is provided with two rows of protrusions 11 at intervals, and the two rows of protrusions 11 are parallel to each other; the third metal strip is provided with three rows of protrusions 11 at intervals, and the three rows of protrusions 11 are parallel to each other; the fourth metal strip is provided with two rows of protrusions 11 at intervals, and the two rows of protrusions 11 are parallel to each other. When the four metal strips are stacked together, the protrusions 11 on the four metal strips are arranged in a staggered manner.

[0051] The four stacked metal strips are coiled to form an annular layered structure, thereby obtaining an infrared metal honeycomb body.

[0052] Example 2

[0053] This embodiment provides an infrared metal burner, including a burner body and the infrared metal honeycomb body of embodiment 1; the infrared metal honeycomb body is located in the burner body.

[0054] Because the infrared metal burner of this embodiment adopts the infrared metal honeycomb body of Embodiment 1, the infrared metal burner of this embodiment can at least reduce the probability of tempering.

[0055] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the parent features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An infrared metal honeycomb body, which is an annular layered structure formed by winding a metal strip (1), and honeycomb holes (2) for gas flow are formed between two adjacent winding circles, characterized in that: It also comprises a plurality of blocking components (3), each of the blocking components (3) being connected to each layer of the coiled coils for blocking heat radiation from the air outlet direction of the honeycomb hole (2); each of the blocking components (3) also forms an air flow channel (31) with the adjacent coiled coils for conveying gas to the honeycomb hole (2); in the air intake direction, the cross-sectional area of ​​the air flow channel (31) is smaller than the cross-sectional area of ​​the honeycomb hole (2); The blocking component (3) is arranged at the air inlet of the honeycomb hole (2); The edges of each layer of the coils adjacent to the air inlet of the honeycomb hole (2) are sequentially turned toward the adjacent coils to form the blocking assembly (3); Each layer of winding ring is provided with a protrusion (11), and the protrusion (11) is columnar.

2. The infrared metal honeycomb body according to claim 1, characterized in that: The blocking component (3) comprises a reflecting part; the reflecting surface of the reflecting part faces the air outlet direction of the honeycomb hole (2) and is used to reflect heat radiation from the air outlet direction of the honeycomb hole (2).

3. The infrared metal honeycomb body according to claim 1, characterized in that: The protrusions (11) of two adjacent layers of winding coils are arranged in a staggered manner.

4. The infrared metal honeycomb body according to claim 3, characterized in that: The number of the metal belt (1) is one, and the protrusion (11) is provided on each of the metal belts (1).

5. The infrared metal honeycomb body according to claim 3, characterized in that: The number of the metal strips (1) is at least two; each of the metal strips (1) is provided with a protrusion (11); when a plurality of the metal strips (1) are stacked, the protrusions (11) on any two adjacent metal strips (1) are arranged in a staggered manner; and the infrared metal honeycomb body is formed by winding a plurality of stacked metal strips (1).

6. The infrared metal honeycomb body according to claim 5, characterized in that: One of the two adjacent metal strips (1) is provided with at least n rows of protrusions (11) at intervals, and the other metal strip is provided with at least n+1 rows of protrusions (11) at intervals, wherein n is a positive integer not less than 1.

7. The infrared metal honeycomb body according to claim 3, characterized in that: The protrusion (11) is a hollow protrusion, and the hollow portion of the hollow protrusion is connected to the honeycomb hole (2).

8. An infrared metal burner, characterized in that: It comprises a burner body and the infrared metal honeycomb body as claimed in any one of claims 1 to 7; the infrared metal honeycomb body is located in the burner body.

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