CN219693315U - Burner for gas stove - Google Patents

Abstract

The utility model relates to a burner for a gas stove, which comprises a first gas mixing chamber and a fire cover covered on the first gas mixing chamber, wherein the first gas mixing chamber comprises an inner annular wall, an outer annular wall and a bottom wall connected with the inner annular wall and the outer annular wall, and at least two gas inlet holes communicated with a first gas channel are formed in the bottom wall, and the burner is characterized in that: the utility model has the advantages that the number of the radiation plate holes of each radiation plate is gradually increased by 20% -40% in sequence along the outflow direction of the fuel gas inlet hole, and compared with the prior art, the utility model has the advantages that: the temperature of each radiant panel is higher than that of the flame which is directly burnt on the fire cover under the step-by-step burning, and the radiant heat efficiency is higher.

Description

Burner for gas stove

Technical Field

The utility model relates to the technical field of household kitchen ware, in particular to a burner for a gas stove.

Background

The burner of the gas stove comprises a burner and a fire cover arranged on the burner, wherein the fire cover generally comprises an inner fire cover and an outer fire cover, and the inner fire cover and/or the outer fire cover are/is integrated with a combustion radiation plate to form an infrared gas stove for improving the combustion efficiency. However, for a long time, the infrared gas cooker has the following disadvantages to influence the large-scale popularization and use of the infrared gas cooker: the combustion radiation plate is made of materials with specific properties, is often more easily damaged than a fire cover of a traditional atmospheric gas stove, and is also required to be fastened with a stove head by a specific method for sealing, so that maintenance and replacement are very troublesome, and further improvement is required.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a burner for a gas stove, which can effectively improve efficiency and is convenient to install.

In order to solve the technical problems, the utility model adopts the following technical scheme: this a combustor for gas-cooker, including first gas mixing chamber and cover the fire lid on this first gas mixing chamber, first gas mixing chamber is including interior rampart, outer rampart and connect interior rampart and outer rampart's diapire, set up at least two gas access holes with first gas channel intercommunication on the diapire, its characterized in that: the first gas mixing chamber is internally provided with at least two radiation plates which are arranged at intervals, each radiation plate is provided with at least two radiation plate holes, and the number of the radiation plate holes of each radiation plate is gradually increased by 20% -40% along the outflow direction of the gas inlet holes.

Further, in order to solve the problem that in the prior art, the radiation plates need to be fastened together with the burner to increase the maintenance difficulty, preferably, a holding portion for holding each radiation plate corresponding to the inner annular wall and/or the outer annular wall is provided in the inner annular wall. Through the arrangement of the placing part, the radiating plates are detachably connected with the inner annular wall and/or the outer annular wall, so that the radiating plates are convenient to maintain and replace.

From the viewpoint of simplicity of construction, it is preferable that the resting portion is an annular collar extending partially from inside the inner and/or outer annular wall. By placing the individual radiation plates on the annular flange, the annular flange can be arranged on the inner annular wall only or the outer annular wall only, or can be arranged on the inner annular wall and the outer annular wall at the same time, and the number of the annular flanges is selected and set according to the actual condition of the burner.

In order to make the fire cover of the burner be a mesh fire cover which is distributed with fire holes, the center of the mesh fire cover is arched upwards. Because the center of the mesh fire cover is upwards provided, the mesh fire cover can be better mixed with external secondary air on the inner side and the outer side of the circumference of the fire cover for secondary combustion.

In order to achieve uniformity of the heating pan bottom of the burner, the burner preferably further comprises outer ring bodies which are arranged on the periphery of the outer ring wall at intervals, and a first annular seam for discharging fire is formed between the upper end face of the outer ring body and the outer ring wall.

Further, at least two connecting blocks connected with the outer annular wall are arranged on the upper end face of the outer annular body at intervals along the circumferential direction, and at least two first gas inlet holes communicated with the second gas channel are formed in each connecting block. The outer ring body and the outer annular wall can be combined more stably through the arrangement of each connecting block, and the defect that the part of the first annular seam corresponding to the connecting block cannot be fired can be avoided through the first fuel gas inlet arranged on the connecting block.

Likewise, in order to achieve uniformity of the heating pan bottom of the burner, preferably, a second annular slit for discharging fire is further arranged on the outer ring body outside the first annular slit, and the outer ring body is provided with at least two second gas inlet holes communicated with the second annular slit and the second gas channel. The outer ring body is provided with at least two second fuel gas inlet holes, so that the fuel gas flowing out of the second annular seam can be slowed down, the second annular seam positioned outside the first annular seam can assist in pulling the fire out of the first annular seam, and further more stable combustion is realized.

Compared with the prior art, the utility model has the advantages that: the flame formed by each radiation plate heats the fire cover to a high temperature state, then heat is transferred to the cooker through an infrared radiation mode, the cross section of each radiation plate and the number of radiation holes are gradually increased from bottom to top, the flue gas flow rate can be gradually reduced, the contact time between each layer of radiation plate and the flue gas is increased, the utilization efficiency of the fuel gas is improved, the combustion process is more complete, and the thermal efficiency is further improved.

Drawings

FIG. 1 is a schematic view of a burner in an embodiment of the utility model;

FIG. 2 is a schematic illustration of the configuration of the gas passage of FIG. 1 omitted;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is an exploded view of FIG. 2;

FIG. 5 is a cross-sectional view of FIG. 1;

fig. 6 is a partial structural view of fig. 4.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 6, is a preferred embodiment of the present utility model. The burner fire cover 2 for a gas stove of this embodiment includes a first gas mixing chamber 1 and a fire cover 2 covering the first gas mixing chamber 1, the first gas mixing chamber 1 includes an inner annular wall 11, an outer annular wall 12 and a bottom wall 13 connecting the inner annular wall 11 and the outer annular wall 12, at least two gas inlet holes 131 communicating with a first gas channel 8 are provided on the bottom wall 13, at least two radiation plates 3 are provided in the first gas mixing chamber 1, at least two radiation plate holes 31 are provided on each radiation plate 3, and the number of the radiation plate holes 31 of each radiation plate 3 gradually increases by 20% -40% in sequence along the outflow direction of the gas inlet holes 131. The fire cover 2 is heated to a high temperature state by the flame formed by each radiation plate 3, then heat is transferred to the cooker by an infrared radiation mode, meanwhile, the high-temperature flue gas is secondarily heated by each radiation plate 3, so that the temperature of the flue gas is further increased, the temperature of the flue gas is higher under the gradual firing of each radiation plate 3 than that of the flame which is directly combusted on the fire cover 2, and the radiation heat efficiency is higher, so that the heat radiation efficiency is higher in the heat exchange process with the cooker, the temperature of the flue gas is higher, the convection heat exchange efficiency is improved, and the higher heat efficiency is obtained; in addition, each radiation plate 3 is gradually increased from bottom to top in the cross section and the quantity of radiation holes, so that the flow rate of the flue gas can be gradually reduced, the contact time between each layer of radiation plate 3 and the flue gas is increased, the radiation area of the radiation plate 3 is further improved, after passing through the multi-layer radiation plate 3, the flue gas flows out from the fire cover 2 to the outside, the temperature of the flue gas is highest, meanwhile, the flow rate of the flue gas is gradually reduced, the heat exchange time of the flue gas and a cooker can be increased while the temperature of the flue gas is improved, and the heat efficiency is improved. Finally, as the number of the radiation holes of the radiation plate 3 at the lowest layer is small, the combustion mode on the flame base surface is atmospheric combustion, the flame is relatively long, and secondary air is not supplemented, so that the fuel in the smoke is not completely combusted, after the multi-stage radiation plate 3 decelerates, the smoke is supplemented to the root of the fire cover 2 at the uppermost layer, and is mixed with external secondary air for secondary combustion, so that the utilization efficiency of fuel gas is improved, the combustion process is more complete, and the thermal efficiency is improved.

Specifically, two radiation plates 3 are provided in the present embodiment, and along the outflow direction of the gas inlet hole 131, the number of the radiation plate holes 31 of each radiation plate 3 gradually increases from bottom to top by 30%, which is an important point of the present embodiment, and the present embodiment is to solve the problem that in the prior art, the radiation plate 3 needs to be fastened together with the burner, so that the maintenance difficulty is increased, where the inner annular wall 11 and/or the outer annular wall 12 are provided with a holding portion 4 for holding each radiation plate 3 corresponding to itself. Through the arrangement of the rest part 4, the radiation plates 3 are detachably connected with the inner annular wall 11 and/or the outer annular wall 12, and the maintenance and the replacement are convenient. From the point of view of a simple structure, the rest 4 is an annular collar extending partially from inside the inner annular wall 11 and/or the outer annular wall 12. By placing the individual radiant panels 3 on the annular collar, the collar can be provided only on the inner annular wall 11 or on the outer annular wall 12, or on both the inner annular wall 11 and the outer annular wall 12, the number of collar being chosen according to the actual conditions of the burner. In order to make the burner fire cover 2 be a mesh fire cover with fire holes distributed, the center of the mesh fire cover is arched upward. Because the center of the mesh fire cover is upwards provided, the mesh fire cover can be better mixed with external secondary air on the inner side and the outer side of the circumference of the fire cover 2 for secondary combustion.

In order to realize the uniformity of the heating pan bottom of the burner, the burner also comprises an outer ring body 5 which is positioned at the periphery of the outer ring wall 12 and is arranged at intervals, and a first annular slit 51 for discharging fire is formed between the upper end surface of the outer ring body 5 and the outer ring wall 12. At least two connecting blocks 52 connected with the outer annular wall 12 are arranged on the upper end surface of the outer annular body 5 at intervals along the circumferential direction, and at least two first gas inlet holes 53 communicated with the second gas channel 6 are formed in each connecting block 52. The outer ring body 5 and the outer ring wall 12 can be combined more stably through the arrangement of the connecting blocks 52, and in addition, the first fuel gas inlet 53 arranged on the connecting blocks 52 can avoid the defect that the part of the first annular seam 51 corresponding to the connecting blocks 52 cannot be burnt. Likewise, in order to achieve uniformity of the burner heating pan bottom, it is preferable that the outer ring body 5 is further provided with a second annular slit 7 for discharging fire outside the first annular slit 51, and the outer ring body 5 has at least two second gas inlet holes 71 communicating with the second annular slit 7 and the second gas passage 6. The at least two second gas inlets 71 on the outer ring body 5 can slow down the gas flowing out of the second annular slit 7, so that the second annular slit 7 positioned outside the first annular slit 51 can assist in pulling the fire out of the first annular slit 51, thereby realizing more stable combustion. In conclusion, the burner combines the circular seam type fire discharging mode with the radial radiating plate 3 fire discharging mode, and the combustion efficiency of the burner is effectively improved.

Claims (7)

1. The utility model provides a combustor for gas-cooker, is including first gas mixing chamber (1) and cover fire lid (2) on this first gas mixing chamber (1), first gas mixing chamber (1) is including interior rampart (11), outer rampart (12) and connect diapire (13) of interior rampart (11) and outer rampart (12), offer on diapire (13) with two at least gas access holes (131) of first gas passageway (8) intercommunication, its characterized in that: the gas mixing chamber is characterized in that at least two radiation plates (3) are arranged at intervals in the first gas mixing chamber (1), at least two radiation plate holes (31) are formed in each radiation plate (3), and the number of the radiation plate holes (31) of each radiation plate (3) is gradually increased by 20% -40% in sequence along the outflow direction of the gas inlet holes (131).

2. The burner for a gas range according to claim 1, wherein: the inner annular wall (11) and/or the outer annular wall (12) are internally provided with a rest part (4) for placing the corresponding radiation plates (3).

3. The burner for a gas range according to claim 2, wherein: the rest part (4) is an annular convex edge which extends partially from the inner annular wall (11) and/or the outer annular wall (12).

4. A burner for a gas range according to claim 3, wherein: the fire cover (2) is a mesh fire cover which is fully distributed with fire holes, and the center of the mesh fire cover is arched upwards.

5. The burner for a gas range according to any one of claims 1 to 4, wherein: the fire-discharging device is characterized by further comprising an outer ring body (5) which is arranged on the periphery of the outer ring wall (12) at intervals, wherein a first annular slit (51) for discharging fire is formed between the upper end face of the outer ring body (5) and the outer ring wall (12).

6. The burner for a gas range according to claim 5, wherein: at least two connecting blocks (52) connected with the outer annular wall (12) are arranged on the upper end face of the outer annular body (5) at intervals along the circumferential direction, and at least two first gas inlet holes (53) communicated with the second gas channel (6) are formed in each connecting block (52).

7. The burner for a gas range according to claim 6, wherein: the outer ring body (5) is further provided with a second annular slit (7) for discharging fire outside the first annular slit (51), and the outer ring body (5) is provided with at least two second fuel gas inlet holes (71) communicated with the second annular slit (7) and the second fuel gas channel (6).