CN212377975U

CN212377975U - Burner fire cover

Info

Publication number: CN212377975U
Application number: CN202020371339.3U
Authority: CN
Inventors: 刘帅; 蔡国汉; 朱志新; 郑军妹; 俞瑜
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2021-01-19
Anticipated expiration: 2030-03-20

Abstract

The utility model relates to a combustor fire lid, including fire lid body, the annular perisporium of fire lid body is equipped with the main fire hole of first main fire hole and the main fire hole of second of two rows about along circumference interval, its characterized in that: vertical annular grooving has been seted up from bottom to top in the bottom central authorities of annular perisporium, vertical annular grooving with first main fire hole is crossing and intercommunication the main fire hole of second, compare with prior art, the utility model has the advantages of set up double main fire hole promptly first main fire hole and the main fire hole of second on the annular perisporium of fire lid body, and be provided with the vertical annular grooving that intersects with first main fire hole on the annular perisporium, this vertical annular grooving link up with the main fire hole of second, the gas that flows to the recess like this by the local gas of flowing to in the first main fire hole along vertical decurrent direction and the gas offset that the main fire hole of second flows, vertical annular grooving has constituted the steady voltage portion in first main fire hole and the main fire hole of second for this reason to steady flame live first main fire hole and the main fire hole of second.

Description

Burner fire cover

Technical Field

The utility model relates to a domestic kitchen utensils and appliances technical field to and relate to a can improve combustor fire lid of steady flame ability.

Background

At present, the fire lid of gas-cooker usually comprises roof, annular inside wall and annular lateral wall, and it has a plurality of main fire hole to open along its circumferencial direction on the annular lateral wall of fire lid, and only including the single row fire hole on the annular lateral wall of current gas-cooker fire lid, this type of patent document can refer to the chinese utility model patent of patent number ZL200520014838.2 for a gas-cooker combustor toper fire lid (grant No. CN2842216Y), can also refer to chinese utility model patent of patent number ZL201120246965.0 for a combustor fire lid (grant No. CN 202149492U). The single main fire hole combustion mode disclosed above has the disadvantages that the flame is easy to jump after combustion, the combustion area is unstable, meanwhile, the single row of fire holes not only causes low combustion heat efficiency of the gas stove, but also causes insufficient combustion of the gas, which leads to emission of carbon monoxide gas, and aggravates environmental pollution, for this reason, the Chinese utility model patent No. ZL 21153770, namely 'A gas stove fire cover assembly' (No. CN206191590U), discloses a gas stove fire cover assembly, which comprises a base and a cover body matched with the base, a plurality of inner fire holes are arranged on the inner side wall of the cover body along the peripheral direction, and double rows of outer fire holes are arranged on the outer side wall of the cover body along the peripheral direction, the double rows of outer fire holes comprise a plurality of first outer fire holes positioned in a first row and a plurality of second outer fire holes positioned in a second row, the first outer fire holes and the second outer fire holes are staggered, and by arranging the double rows of outer fire holes on the outer side wall, and first outer fire hole and the crisscross setting of second outer fire hole have effectively improved the combustion efficiency of gas-cooker, and this second outer fire hole can also regard as the steady fire hole of first outer fire hole simultaneously, holds first outer fire hole to make the gas combustion more abundant, nevertheless this kind of fire lid has solved the steady flame condition that is located the first outer fire hole of last row, but the second outer fire hole that is located lower row then leaves flame easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a combustor fire cover with double fire holes and good flame stabilizing effect is provided to the above prior art current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this combustor fire lid, including fire lid body, the annular perisporium of fire lid body is equipped with first main fire hole and the main fire hole of second of two rows from top to bottom along circumference interval, its characterized in that: the bottom center of the annular peripheral wall is provided with a vertical annular cutting groove from bottom to top, and the vertical annular cutting groove is intersected with the first main fire hole and communicated with the second main fire hole.

In order to realize the gas that steady flame hole flows out and to be sheltered from by the least significant end of first periphery wall to slow down steady flame hole's gas velocity, and play better steady flame effect, preferably, vertical annular grooving will the annular perisporium is separated into along the first periphery wall of radial inside and outside interval and second internal perisporium, the least significant end of second internal perisporium is less than the least significant end of first periphery wall, be provided with steady flame hole on the second internal perisporium, steady flame hole with second main fire hole aligns one by one in proper order and sets up or staggered arrangement. On one hand, the vertical annular cutting groove can divide the gas flowing out of the first main fire hole, so that the gas flowing out of the first main fire hole is slowed down, the combustion of the gas is stable, and the gas is not easy to leave flame; on the other hand, the flame stabilizing holes are connected into a circle of flame ring in the vertical annular cutting groove below the first main fire hole, so that the flame stabilizing effect on the lower row of second main fire holes is good.

In order to better pull the first main fire hole, preferably, the fire cover body further comprises a top wall and an inner circumferential wall which gradually inclines inwards from top to bottom from the inner side edge of the top wall, a gas mixing cavity is formed among the annular circumferential wall, the inner circumferential wall and the top wall, and the flame stabilizing hole inclines upwards from an inlet end communicated with the gas mixing cavity to an outlet end communicated with the vertical annular cutting groove and gradually approaches to the first main fire hole from inside to outside.

Further, in order to better realize that the flame stabilizing holes are connected into a circle of flame ring in the vertical annular cutting groove below the first main flame hole, and further have good flame stabilizing effect on the second main flame hole in the lower row, preferably, an included angle a between the center line of the flame stabilizing hole and the center line of the groove is an obtuse angle.

Similarly, in order to better realize the flame ring in which the flame stabilizing holes are connected into a circle in the groove below the first main flame hole, it is preferable that the lowest end of the first outer peripheral wall is lower than the gas outlet end of the flame stabilizing hole. The gas that flows from the gas outlet end of flame stabilizing hole can be lived to the lowest end of first periphery wall like this "fender" to can link into the flame ring of round in vertical annular grooving, and then flame stabilizing is in the below of first main fire hole.

In order to prevent the lowest end of the first peripheral wall from excessively shielding the gas flowing out of the second main fire hole, preferably, the lowest end of the first peripheral wall has a flow guiding slope gradually inclining outwards from bottom to top. The guide slope can guide the flame ring which can be connected into a circle in the vertical annular cutting groove to flow out to the first peripheral wall.

In order to avoid the overflow liquid from blocking the first main fire hole and the second main fire hole, the top wall of the fire cover body is preferably provided with notches for guiding the overflow liquid at intervals along the circumferential direction.

In order to better stabilize the first main fire hole and the second main fire hole, preferably, the flame stabilizing hole is located between the first main fire hole and the second main fire hole.

Compared with the prior art, the utility model has the advantages of set up double main fire hole promptly first main fire hole and the main fire hole of second on the annular perisporium of fire lid body, and be provided with the vertical annular grooving that intersects with first main fire hole on the annular perisporium, this vertical annular grooving link up with the main fire hole of second, the gas that flows to the recess in the first main fire hole like this along vertical decurrent direction and the gas offset that the main fire hole of second flows, the recess can shunt the gas in the first main fire hole of part like this, and the gas offset that the gas that flows out and the main fire hole of second flow out also weakens the gas speed in the main fire hole of second equally, vertical annular grooving has constituted the steady voltage portion in first main fire hole and the main fire hole of second for this reason, when steady flame live first main fire hole and the main fire hole of second, can also show the combustion efficiency who improves the gas-cooker.

Drawings

Fig. 1 is a schematic structural view of a fire cover of a burner in embodiment 1 of the present invention;

FIG. 2 is a cross-sectional view at an angle of FIG. 1;

FIG. 3 is a cross-sectional view at another angle from FIG. 1;

fig. 4 is a sectional view of a burner fire cover according to embodiment 2 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1

As shown in FIGS. 1 to 3, the preferred embodiment of the present invention is shown. The burner fire cover of the embodiment comprises a fire cover body 1, wherein an annular peripheral wall 10 of the fire cover body 1 is provided with a first main fire hole 11 and a second main fire hole 12 which are arranged in an upper row and a lower row at intervals along the circumferential direction, a vertical annular cutting groove 13 is formed in the bottom center of the annular peripheral wall 10 from bottom to top, the vertical annular cutting groove 13 is intersected with the first main fire hole 11 and communicated with the second main fire hole 12, the annular peripheral wall 10 of the fire cover body 1 is provided with double rows of main fire holes, namely the first main fire hole 11 and the second main fire hole 12, the annular peripheral wall 10 is provided with a vertical annular cutting groove 13 which is intersected with the first main fire hole 11, the vertical annular cutting groove 13 is communicated with the second main fire hole 12, so that gas flowing from a part of the first main fire hole 11 to the vertical annular cutting groove 13 is in opposite impact with gas flowing out of the second main fire hole 12 along the vertical downward direction, and the vertical annular cutting groove 13 can shunt a part of the gas of the first main fire hole 11, the gas speed of the second main fire hole 12 is also reduced by the opposite impact of the branched gas and the gas flowing out of the second main fire hole 12, so that the vertical annular cutting groove 13 forms a pressure stabilizing part of the first main fire hole 11 and the second main fire hole 12, and the combustion efficiency of the gas stove can be obviously improved while the first main fire hole 11 and the second main fire hole 12 are stabilized by flame.

Specifically, in order to realize that the gas flowing out of the flame stabilizing hole 16 can be shielded by the lowest end of the first outer peripheral wall 14, so as to slow down the gas speed of the flame stabilizing hole 16 and achieve a good flame stabilizing effect, the vertical annular cutting groove 13 in the embodiment divides the annular peripheral wall 10 into a first outer peripheral wall 14 and a second inner peripheral wall 15 which are spaced radially inward and outward, the lowest end of the second inner peripheral wall 15 is lower than the lowest end of the first outer peripheral wall 14, the second inner peripheral wall 15 is provided with the flame stabilizing hole 16, the flame stabilizing holes 16 and the second main flame holes 12 are arranged in a staggered manner in sequence, and on one hand, the vertical annular cutting groove 13 can split the gas flowing out of the first main flame holes 11, so that the gas flowing out of the first main flame holes 11 is slowed down, the combustion of the first main flame holes 11 is stable, and the; on the other hand, the flame stabilizing holes 16 are connected into a circle of flame ring below the first main fire hole 11 in the vertical annular cutting groove 13, and the flame stabilizing effect on the lower row of second main fire holes 12 is good. In addition, in order to better pull the first main fire hole 11, the fire cover body 1 further comprises a top wall 17, an inner peripheral wall 18 which gradually inclines inwards from top to bottom from the inner side edge of the top wall 17, a mixed gas cavity 19 is formed among the annular peripheral wall 10, the inner peripheral wall 18 and the top wall 17, and the flame stabilizing holes 16 are inclined upwards and gradually close to the first main fire hole 11 from the inlet end 161 communicated with the mixed gas cavity 19 to the outlet end 162 communicated with the vertical annular cutting groove 13. Also, in order to better realize that the flame stabilizing holes 16 are connected into a circle of flame ring below the first main flame holes 11 in the vertical annular slot 13, and thus have good flame stabilizing effect on the lower row of the second main flame holes 12, it is preferable that the included angle a between the center line of the flame stabilizing holes 16 and the center line of the vertical annular slot 13 is an obtuse angle. And the lowest end of the first peripheral wall 14 is lower than the gas outlet end of the flame stabilizing hole 16, so that the flame stabilizing hole 16 can be connected into a circle of flame ring in the vertical annular cutting groove 13 below the first main flame hole 11, the lowest end of the first peripheral wall 14 can block the gas flowing out from the gas outlet end of the flame stabilizing hole 16, and the flame ring can be connected into a circle in the vertical annular cutting groove 13, so that the flame is stabilized below the first main flame hole 11.

Finally, in order to prevent the lowermost end of the first peripheral wall 14 from excessively shielding the gas flowing out of the second main fire hole 12, the lowermost end of the first peripheral wall 14 has a guide slope 141 gradually inclined outward from bottom to top. The flow guiding slope 141 can guide the flame rings which can be connected into a circle in the vertical annular cutting groove 13 to flow out to the first peripheral wall 14, and the top wall 17 of the fire cover body 1 is provided with notches 171 for guiding overflow liquid at intervals along the circumferential direction, so that the overflow liquid can be effectively prevented from blocking the first main fire hole 11 and the second main fire hole 12.

The burner cap of the embodiment can realize three layers of fire, wherein the first layer of fire is formed by the first main fire hole 11, the second layer of fire is formed by the vertical cutting groove and the flame stabilizing hole 16, the third layer of fire is formed by the second main fire hole 12, and the vertical annular cutting groove 13 can divide the gas flowing out of the first main fire hole 11 on one hand, so that the gas flowing out of the first main fire hole 11 is slowed down, the combustion of the gas is stable, and the gas is not easy to leave flame; on the other hand, the flame stabilizing holes 16 are arranged below the first main fire holes 11 and connected into a circle of flame rings, namely second-layer fire, in the vertical annular cutting groove 13, so that the flame stabilizing effect on the lower-row second main fire holes 12 is good, the diameter of the furnace end with the three layers of fire is smaller under the same combustion load, the heat efficiency of the furnace end is facilitated, and the cost is reduced; the heat load principle can also be promoted equally, under the same furnace end structure, because this combustor fire lid can arrange one deck fire hole more, last combustor fire lid can also realize that two-layer fire hole of first main fire hole 11 and second main fire hole 12 do not snatch secondary air each other, can reduce the flue gas by a wide margin, promotes the efficiency of the heat load and the thermal efficiency of furnace end.

Example 2

The structure is basically the same as that of the embodiment 1, and the only difference is that: in order to better stabilize the first and second

main fire holes

11 and 12, the flame stabilizing holes 16 are located between the first and second

main fire holes

11 and 12, and the flame stabilizing holes 16 are aligned with the second main fire holes 12 one by one, as shown in fig. 4.

Claims

1. The utility model provides a combustor fire lid, is including fire lid body (1), annular perisporium (10) of fire lid body (1) are equipped with first main fire hole (11) and the main fire hole of second (12) of two rows about along circumference interval, its characterized in that: the bottom center of the annular peripheral wall (10) is provided with a vertical annular cutting groove (13) from bottom to top, and the vertical annular cutting groove (13) is intersected with the first main fire hole (11) and communicated with the second main fire hole (12).

2. The burner fire cover of claim 1, wherein: vertical annular grooving (13) will annular perisporium (10) are separated into along radial inside and outside spaced first periphery wall (14) and second internal perisporium (15), the least significant end of second internal perisporium (15) is less than the least significant end of first periphery wall (14), be provided with on second internal perisporium (15) and stabilize flame vent (16), steady flame vent (16) with second main flame vent (12) align one by one in proper order and set up or staggered arrangement.

3. The burner fire cover of claim 2, wherein: the fire cover body (1) further comprises a top wall (17) and an inner circumferential wall (18) which gradually inclines inwards from top to bottom from the inner side edge of the top wall (17), a mixed air cavity (19) is formed among the annular circumferential wall (10), the inner circumferential wall (18) and the top wall (17), and the flame stabilizing holes (16) incline upwards and gradually approach the first main fire holes (11) from an inlet end (161) communicated with the mixed air cavity (19) to an outlet end (162) communicated with the vertical annular cutting groove (13).

4. The burner fire cover of claim 3, wherein: and an included angle a between the central line of the flame stabilizing hole (16) and the central line of the vertical annular cutting groove (13) is an obtuse angle.

5. The burner fire cover of claim 4, wherein: the lowest end of the first peripheral wall (14) is lower than the air outlet end of the flame stabilizing hole (16).

6. The burner fire cover of claim 5, wherein: the lowest end of the first peripheral wall (14) is provided with a flow guiding slope (141) which gradually inclines outwards from bottom to top.

7. The burner fire cover according to any one of claims 3 to 6, characterized in that: the top wall (17) of the fire cover body (1) is provided with notches (171) for guiding overflowing liquid at intervals along the circumferential direction.

8. The burner fire cover of claim 7, wherein: the flame stabilizing hole (16) is positioned between the first main fire hole (11) and the second main fire hole (12).