CN210921533U - Metal honeycomb heating body for gas stove - Google Patents
Metal honeycomb heating body for gas stove Download PDFInfo
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- CN210921533U CN210921533U CN201921281283.6U CN201921281283U CN210921533U CN 210921533 U CN210921533 U CN 210921533U CN 201921281283 U CN201921281283 U CN 201921281283U CN 210921533 U CN210921533 U CN 210921533U
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- metal strip
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- 239000002184 metal Substances 0.000 title claims abstract description 82
- 238000010438 heat treatment Methods 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000011148 porous material Substances 0.000 claims description 13
- 238000004080 punching Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000010411 cooking Methods 0.000 abstract description 4
- 241000264877 Hippospongia communis Species 0.000 description 43
- 239000007789 gas Substances 0.000 description 27
- 230000002349 favourable effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a metal honeycomb heat-generating body for gas cooking utensils, including the metal strip material same face of metal strip material is provided with protruding group I and protruding group II in turn, the metal strip material is coiled and is formed the honeycomb heat-generating body that has a plurality of coils, protruding group I with protruding group II arranges respectively that arbitrary two adjacent coils circle to be formed with the hole that supplies the gas to pass through between the adjacent coil, wherein protruding density of protruding group I lower extreme is greater than protruding density of I upper end of group, protruding density of group II lower extreme is greater than protruding density of II upper ends of group. The metal honeycomb heating element of the utility model has low porosity at the lower end of the metal honeycomb heating element, so that flame is more difficult to spread to the lower end of the honeycomb heating element to avoid causing backfire, and the flame stability is higher; in addition, the upper end of the metal honeycomb heating body has higher porosity, which is beneficial to the high-efficiency combustion of gas and the emission of combustion tail gas.
Description
Technical Field
The utility model relates to a cooking utensils technical field especially relates to a metal honeycomb heat-generating body for gas cooking utensils.
Background
At present, the heating bodies of the infrared gas stoves on the market mainly comprise two types, namely ceramic honeycomb bodies and metal honeycomb bodies, wherein the metal honeycomb bodies are increasingly popular with consumers due to better cold and hot shock resistance and better texture. The metal honeycombs are mostly formed by coiling one or more thin metal strips, but the dense metal strips have higher thermal conductivity and easier heat conduction from the upper side to the lower side of the honeycomb plate compared with loose ceramics, so that the lower side of the honeycomb plate has high temperature. In order to prevent the flame from propagating to the lower end of the honeycomb body to cause backfire, the pores of the metal honeycomb body need to be designed to be small, the smaller the pores are, the lower the porosity of the honeycomb body is, the more adverse injection is caused, and further improvement of the combustion efficiency is limited.
The gas of the infrared burner is firstly combusted on the surface layer of the honeycomb body, the gas is heated to become red along with the surface layer material, the gas enters the pores of the honeycomb body to be combusted, in order to improve the heating efficiency of the infrared gas stove, the gas needs to be kept on the upper side of the honeycomb body to be combusted, but the structure with uniform upper and lower pores of the honeycomb body is difficult to maintain the flame on the upper side and not spread to the lower side, and the flame stability is limited.
Disclosure of Invention
The utility model discloses aim at solving one of the problems that exist among the prior correlation technique at least to a certain extent, for this reason, the utility model provides a metal honeycomb heat-generating body for gas cooking utensils, its flame stability is higher, is difficult for taking place the tempering.
According to the metal honeycomb heating body for the gas cooker, the metal honeycomb heating body is realized by the following technical scheme:
a metal honeycomb heating body for a gas cooker comprises a metal strip, wherein a protrusion group I and a protrusion group II are alternately arranged on the same surface of the metal strip, the metal strip is coiled to form a honeycomb heating body with a plurality of coil coils, the protrusion group I and the protrusion group II are respectively arranged on any two adjacent coil coils, and a hole for gas to pass through is formed between the adjacent coil coils, wherein the protrusion density of the lower end of the protrusion group I is larger than the protrusion density of the upper end of the protrusion group I, and the protrusion density of the lower end of the protrusion group II is larger than the protrusion density of the upper end of the protrusion group II.
In some embodiments, the protrusion group i at least includes a first hollow protrusion and a second hollow protrusion alternately arranged along the length direction of the metal strip, the upper end and the lower end of the first hollow protrusion and the second hollow protrusion have openings, the upper opening is an air outlet, the lower opening is an air inlet, the air outlet forms the hole, and the length of the first hollow protrusion is greater than that of the second hollow protrusion.
In some embodiments, the first hollow-out projection is disposed at a middle section of the metal strip, and the second hollow-out projection is disposed at a lower half section of the metal strip.
In some embodiments, the first hollow-out projection and the second hollow-out projection have the same projection height, and the lower end of the second hollow-out projection is flush with the lower end of the first hollow-out projection.
In some embodiments, the first hollow-out protrusion and the second hollow-out protrusion are formed by stamping the metal strip, and upper ends and lower ends of the first hollow-out protrusion and the second hollow-out protrusion are cut and separated from the metal strip to form the air outlet and the air inlet respectively.
In some embodiments, the protrusion group ii includes a plurality of third hollow protrusions and a plurality of fourth hollow protrusions arranged in a row in a horizontal direction, the third hollow protrusions are located above the fourth hollow protrusions, openings are formed at upper and lower ends of the third hollow protrusions and the fourth hollow protrusions, an opening at an upper end is an air outlet, an opening at a lower end is an air inlet, the air outlet forms the hole, and a distance L1 between adjacent third hollow protrusions is greater than a distance L2 between adjacent fourth hollow protrusions.
In some embodiments, the third hollow protrusions and the fourth hollow protrusions are uniformly arranged in the same protrusion group ii, and the distance L1 is not less than twice the distance L2.
In some embodiments, the third hollow-out projection and the fourth hollow-out projection are respectively arranged on the upper half section and the lower half section of the metal strip.
In some embodiments, the third hollow protrusion and the fourth hollow protrusion have the same protrusion height.
In some embodiments, the third hollow-out projection and the fourth hollow-out projection are formed by punching a metal strip, and upper ends and lower ends of the third hollow-out projection and the fourth hollow-out projection are cut and separated from the metal strip to form the air outlet and the air inlet respectively.
Compared with the prior art, the utility model discloses an at least including following beneficial effect:
1. the lower ends of the bulge groups I and II of the metal honeycomb heating body have high bulge density, so that the porosity of the lower end of the metal honeycomb heating body is lowered, flame is more difficult to spread to the lower end of the honeycomb heating body to avoid backfire, and the flame stability is higher;
2. the utility model discloses a metal honeycomb heat-generating body, its protruding upper end that organizes I and protruding group II protruding density is little, makes honeycomb heat-generating body upper end have higher porosity, is favorable to the high-efficient burning of gas and burning exhaust emissions.
Drawings
FIG. 1 is a schematic structural view of a honeycomb heating element formed by coiling a metal strip in an embodiment of the present invention;
FIG. 2 is a sectional view of a honeycomb heating element in the embodiment of the present invention;
FIG. 3 is a front view of a partial metal strip in an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a bottom view of a partial metal strip in an embodiment of the present invention;
fig. 6 is an isometric view of a partial metal strip in an embodiment of the invention.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. To the embodiment of the present invention, modify or replace some technical features, without departing from the spirit of the present invention, it should be covered in the technical solution scope of the present invention.
As shown in fig. 1-3, a metal honeycomb heating element for a gas cooker comprises a metal strip 1, wherein a protrusion group i 21 and a protrusion group ii 22 are alternately arranged on the same surface of the metal strip 1, the metal strip 1 is coiled to form a honeycomb heating element with a plurality of coil rings, the protrusion group i 21 and the protrusion group ii 22 are respectively arranged on any two adjacent coil rings, a pore 3 for gas to pass through is formed between the adjacent coil rings, and the gas is transmitted from the pore 3 to the upper surface of the honeycomb heating element for combustion. Wherein the protruding density of protruding group I21 lower extreme is greater than the protruding density of protruding group I21 upper end, and the protruding density of protruding group II 22 lower extreme is greater than the protruding density of protruding group II 22 upper end. In this embodiment, the lower end of the protrusion group refers to an end of the protrusion group located below the center line of the metal strip 1 in the width direction (i.e., the lower half), and the upper end of the protrusion group refers to an end located above the center line of the metal strip 1 in the width direction (i.e., the upper half). The protrusion density specifically refers to the number of protrusions of the upper half or the lower half of the metal strip 1 in the width direction.
In the metal honeycomb heating body of the embodiment, the lower ends of the protrusion groups I21 and II 22 have high protrusion density, so that the lower ends of the protrusion groups I21 and II 22 and the lower half section of the metal strip material 1 in the width direction are enclosed together to form smaller and denser pores 3, flame is ensured to be more difficult to propagate to the lower end of the honeycomb heating body to avoid tempering, and the flame stability is higher; in addition, protruding group I21 of protruding group and protruding density in the upper end of group II 22 are little, make protruding group I21's upper end, protruding group II 22's upper end and the first half section of 1 width direction of metal band material enclose jointly and close the hole 3 that forms bigger more sparse to make metal honeycomb heat-generating body upper end have higher porosity, be favorable to the high-efficient burning of gas, it is fast to generate heat, still is favorable to burning tail gas to discharge simultaneously.
As shown in fig. 2-6, specifically, the protrusion group i 21 at least includes a first hollow protrusion 211 and a second hollow protrusion 212 alternately arranged along the length direction of the metal strip 1, the upper end and the lower end of the first hollow protrusion 211 and the second hollow protrusion 212 are provided with openings, wherein the opening at the upper end is an air outlet 201, the opening at the lower end is an air inlet 202 for gas to pass through, the air outlet 201 forms a hole 3 for gas or flue gas to pass through, the length of the first hollow protrusion 211 is greater than that of the second hollow protrusion 212, and thus the arrangement of the air inlet 202 and the air outlet 201 is beneficial to improving the overall porosity of the honeycomb heating element.
Preferably, the first hollow-out protrusions 211 are arranged at the middle section of the metal strip 1 in the width direction, and the second hollow-out protrusions 212 are arranged at the lower half section of the metal strip 1 in the width direction. Therefore, the distance between the lower end of the central line of each first hollow-out projection 211 and the central line of the adjacent second hollow-out projection 212 is small, and the distance between the upper end of the central line of each first hollow-out projection 211 and the upper end of the central line of the adjacent first hollow-out projection 211 is large, so that the projection density of the lower end of the projection group I21 is greater than the projection density of the upper end of the projection group I21.
Preferably, the first hollow-out protrusions 211 are as high as the second hollow-out protrusions 212, and the lower ends of the second hollow-out protrusions 212 are flush with the lower ends of the first hollow-out protrusions 211, so that the coil with the protrusion groups i 21 can form stable and uniform holes 3. In this embodiment, the protrusion height specifically refers to a height difference between a highest point of the hollow protrusion and a flat belt region of the metal belt material having the hollow protrusion.
More preferably, first fretwork is protruding 211 and second fretwork 212 for taking 1 punching press to form to the metal, and the upper end and the lower extreme of first fretwork is protruding 211 and second fretwork 212 and take 1 cutting separation with the metal, form gas outlet 201 and air inlet 202 respectively, so need not to increase under the condition of consumptive material, do benefit to the quick machine-shaping of first fretwork is protruding 211 and second fretwork is protruding 212, and the production efficiency is improved, and the manufacturing cost is reduced, still is favorable to improving the whole porosity of honeycomb heat-generating body simultaneously.
As shown in fig. 3-6, specifically, the protrusion group ii 22 includes a plurality of third hollow protrusions 221 and a plurality of fourth hollow protrusions 222 respectively arranged in a row in the horizontal direction, the third hollow protrusions 221 are located above the fourth hollow protrusions 222, the upper and lower ends of the third hollow protrusions 221 and the fourth hollow protrusions 222 have openings, wherein the opening at the upper end is an air outlet 201, the opening at the lower end is an air inlet 202 for gas to pass through, the air outlet 201 forms a hole 3 for gas or smoke to pass through, and a distance L1 between the central points of adjacent third hollow protrusions 221 is greater than a distance L2 between the central points of adjacent fourth hollow protrusions 222. From this, both ends all are provided with the opening about through at the protruding 221 of third fretwork and the protruding 222 of fourth fretwork for the protruding 221 of third fretwork and the protruding 222 of fourth fretwork not only can play supporting role reliably, can also regard as the partly of hole 3, have further improved the whole porosity of honeycomb heat-generating body, are favorable to the primary air of front end nozzle to draw and penetrate, make the gas burning more abundant.
Preferably, the third hollow-out protrusions 221 and the fourth hollow-out protrusions 222 are uniformly arranged in the same protrusion group ii 22, and the distance L1 is not less than twice the distance L2, so as to ensure that the protrusion density of the upper end of the protrusion group ii 22 is greater than the protrusion density of the lower end of the protrusion group ii 22. In this embodiment, the distance L1 is equal to twice the distance L2, and the third hollow protrusion 221 is coaxially disposed above the adjacent fourth hollow protrusion 222.
Specifically, the third hollowed-out protrusion 221 and the fourth hollowed-out protrusion 222 are respectively arranged on the upper half section and the lower half section in the width direction of the metal strip 1, so that the hole 3 formed by the third hollowed-out protrusion 221 and the upper half section in the width direction of the metal strip 1 in a surrounding manner is larger and more sparse, and the porosity of the upper end of the honeycomb heating body is higher; meanwhile, the fourth hollow-out protrusion 222 and the lower half section of the width direction of the metal strip 1 jointly enclose a smaller and denser pore 3, so that the porosity of the lower end of the honeycomb heating body is reduced, and the flame stability is improved.
More specifically, the top of the first hollow-out protrusion 211 is located between the bottom and the top of the third hollow-out protrusion 221, and the bottom of the first hollow-out protrusion 211 is located between the bottom and the top of the fourth hollow-out protrusion 222 (see fig. 3), so that adjacent hollow-out protrusions of any two adjacent coils are staggered without mutually sinking, and a more stable pore 3 is formed between the coils.
Preferably, the third hollow-out protrusions 221 and the fourth hollow-out protrusions 222 have the same protrusion height, so as to ensure that the winding coil with the protrusion group ii 22 can form uniform pores 3. In addition, the third hollow-out protrusions 221, the fourth hollow-out protrusions 222 and the second hollow-out protrusions 212 have the same protrusion height, so as to ensure that the pores 3 between the coils are stable and uniform.
Preferably, the third hollow-out protrusion 221 and the fourth hollow-out protrusion 222 are formed by stamping the metal strip 1, and the upper end and the lower end of the third hollow-out protrusion 221 and the fourth hollow-out protrusion 222 are cut and separated from the metal strip 1 to form the air outlet 201 and the air inlet 202, respectively, so as to simplify the processing procedure and reduce the manufacturing cost.
In other embodiments, the lower ends of the first hollow-out protrusion 211 and the second hollow-out protrusion 212 can be designed as closed ends, and the lower end or the upper and lower ends of the fourth hollow-out protrusion 222 can be designed as closed ends, so that the porosity of the lower end of the honeycomb heating element can be further reduced, the effective cross-sectional area for gas to pass through at the lower end of the honeycomb heating element is smaller, which is beneficial to accelerating the gas flow rate at the lower end of the honeycomb heating element, so that the gas can be better cooled at the lower end of the honeycomb heating element when passing through, flame can be more difficult to propagate to the lower end of the honeycomb heating element, the flame stability.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (10)
1. A metal honeycomb heating body for a gas cooker comprises a metal strip material (1), wherein a protrusion group I (21) and a protrusion group II (22) are alternately arranged on the same surface of the metal strip material (1), the metal strip material (1) is coiled to form a honeycomb heating body with a plurality of coil rings, the protrusion group I (21) and the protrusion group II (22) are respectively arranged on any two adjacent coil rings, and a hole (3) for gas to pass is formed between the adjacent coil rings, the metal honeycomb heating body is characterized in that the protrusion density of the lower end of the protrusion group I (21) is greater than that of the upper end of the protrusion group I (21), and the protrusion density of the lower end of the protrusion group II (22) is greater than that of the upper end of the protrusion group II (22).
2. The metal honeycomb heating body for the gas cooker as claimed in claim 1, wherein the protrusion group I (21) at least comprises a first hollowed protrusion (211) and a second hollowed protrusion (212) which are alternately arranged along the length direction of the metal strip (1), the upper end and the lower end of the first hollowed protrusion (211) and the second hollowed protrusion (212) are provided with openings, the opening at the upper end is an air outlet (201), the opening at the lower end is an air inlet (202), the air outlet (201) forms the pore (3), and the length of the first hollowed protrusion (211) is greater than that of the second hollowed protrusion (212).
3. The metal honeycomb heating element for the gas cooker as claimed in claim 2, wherein the first hollowed projections (211) are provided at the middle section of the metal strip (1), and the second hollowed projections (212) are provided at the lower half section of the metal strip (1).
4. The metal honeycomb heating body for the gas cooker as claimed in claim 3, wherein the first hollowed-out projections (211) and the second hollowed-out projections (212) have the same projection height, and the lower ends of the second hollowed-out projections (212) are flush with the lower ends of the first hollowed-out projections (211).
5. The metal honeycomb heating element for the gas cooker as claimed in claim 2, wherein the first hollowed-out protrusion (211) and the second hollowed-out protrusion (212) are formed by stamping the metal strip (1), and the upper end and the lower end of the first hollowed-out protrusion (211) and the second hollowed-out protrusion (212) are cut and separated from the metal strip (1) to form the gas outlet (201) and the gas inlet (202), respectively.
6. The metal honeycomb heating element for the gas cooker as claimed in any one of claims 2 to 5, wherein the protrusion group II (22) comprises a plurality of third hollow protrusions (221) and a plurality of fourth hollow protrusions (222) which are respectively arranged in a row in the horizontal direction, the third hollow protrusions (221) are located above the fourth hollow protrusions (222), the upper and lower ends of the third hollow protrusions (221) and the fourth hollow protrusions (222) are provided with openings, wherein the opening at the upper end is an air outlet (201), the opening at the lower end is an air inlet (202), the air outlet (201) forms the pore (3), and the distance L1 between the adjacent third hollow protrusions (221) is greater than the distance L2 between the adjacent fourth hollow protrusions (222).
7. A metal honeycomb heating element for a gas range as set forth in claim 6, wherein said third hollowed projections (221) and said fourth hollowed projections (222) are uniformly arranged in the same projection group II (22), and the distance L1 is not less than twice the distance L2.
8. The metal honeycomb heating body for the gas cooker as claimed in claim 6, wherein the third hollowed projections (221) and the fourth hollowed projections (222) are respectively provided at the upper half section and the lower half section of the metal strip (1).
9. The metal honeycomb heating body for the gas cooker as claimed in claim 8, wherein the third hollowed projections (221) and the fourth hollowed projections (222) have the same projection height.
10. The metal honeycomb heating element for the gas cooker as claimed in claim 6, wherein the third hollowed projections (221) and the fourth hollowed projections (222) are formed by punching a metal strip (1), and the upper ends and the lower ends of the third hollowed projections (221) and the fourth hollowed projections (222) are cut and separated from the metal strip (1) to form the gas outlet (201) and the gas inlet (202), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921281283.6U CN210921533U (en) | 2019-08-08 | 2019-08-08 | Metal honeycomb heating body for gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921281283.6U CN210921533U (en) | 2019-08-08 | 2019-08-08 | Metal honeycomb heating body for gas stove |
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| Publication Number | Publication Date |
|---|---|
| CN210921533U true CN210921533U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921281283.6U Active CN210921533U (en) | 2019-08-08 | 2019-08-08 | Metal honeycomb heating body for gas stove |
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| Country | Link |
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| CN (1) | CN210921533U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454846A (en) * | 2019-08-08 | 2019-11-15 | 华帝股份有限公司 | Metal honeycomb heating body for gas stove |
| CN110454846B (en) * | 2019-08-08 | 2024-05-28 | 华帝股份有限公司 | Metal honeycomb heating body for gas kitchen ranges |
-
2019
- 2019-08-08 CN CN201921281283.6U patent/CN210921533U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454846A (en) * | 2019-08-08 | 2019-11-15 | 华帝股份有限公司 | Metal honeycomb heating body for gas stove |
| CN110454846B (en) * | 2019-08-08 | 2024-05-28 | 华帝股份有限公司 | Metal honeycomb heating body for gas kitchen ranges |
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