CN111720822B

CN111720822B - Burner for gas stove

Info

Publication number: CN111720822B
Application number: CN201910219530.8A
Authority: CN
Inventors: 邵海忠; 郑军妹
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-03-21
Filing date: 2019-03-21
Publication date: 2021-05-18
Anticipated expiration: 2039-03-21
Also published as: CN111720822A

Abstract

The invention relates to a burner for a gas stove, which comprises a base; the inner ring fire cover is arranged on the base and forms a central gas mixing chamber with the base, the outer ring fire cover is also arranged on the base and is positioned at the periphery of the inner ring fire cover and forms an outer ring gas mixing chamber with the base, and a gas supplementing chamber is formed between the central gas mixing chamber and the outer ring gas mixing chamber; the method is characterized in that: the outer ring gas mixing chamber is provided with fire holes along the circumferential direction on the wall surface adjacent to the gas supplementing chamber, a guide ring for storing overflowing liquid is arranged in the gas supplementing chamber, the gas supplementing chamber can be divided into two relatively independent spaces by the guide ring, the fire holes of the outer ring gas mixing chamber and the outer wall of the central gas mixing chamber are respectively communicated with the fire holes of the outer ring gas mixing chamber.

Description

Burner for gas stove

Technical Field

The invention relates to the field of household kitchen utensils, in particular to a burner for a gas stove.

Background

In order to realize uniform heating of a pot bottom, fire hole distribution on an inner ring and a fire hole distribution on an outer ring of a conventional stove burner on the market are changed correspondingly, for example, an upper air inlet furnace end of a Chinese utility model with the patent number ZL201820258341.2 (the publication number is CN208186341U) comprises a furnace end, an outer ring fire cover and a central fire cover, the outer ring fire cover is provided with fire holes at the inner side and the outer side relative to the inner ring fire cover, wherein the fire holes at the inner side and the outer side of the outer ring fire cover are aligned one to one, once overflowing liquid overflows in the cooking process, the fire holes at the inner side and the outer side can be blocked simultaneously, and therefore, the arrangement of the fire holes at the inner side and the outer side of the outer ring fire cover needs to be designed better; therefore, the Chinese patent application CN200410052538.3 (with the publication number CN1786569A) of the invention discloses a burner fire cover, which comprises a fire cover body, wherein an air cavity is arranged on the bottom surface of the fire cover body, an inclined surface is arranged on the outer circumference of the fire cover body, a plurality of fire holes are arranged on the inclined surface along the outer circumference, the fire holes are obliquely arranged and communicated with the air cavity, the distribution of the fire holes is in a wave shape along the vertical direction, the fire holes are in a wave shape distribution, so that when the burner burns, the fire is more uniform, and are distributed in a plurality of layers in a circle, the heat efficiency is higher, the fire holes of the fire cover change in the radial direction, but only one circle of fire holes is arranged, and the fire power is still not large. Or with the chinese utility model "petal fire lid of gas burner" of patent No. ZL201420079377.6 (the publication number is CN203744259U), this fire lid can concentrate on heating the pan corresponding to the flame of protruding lamella portion, and the flame height corresponding to the depressed part is less, and the position is lower, corresponds the support piece of furnace frame, avoids the support piece of furnace frame to be heated by high temperature for a long time. However, the fire cover changes in axial height, and only the fire holes are formed in the outer periphery of the fire cover, so that high firepower cannot be realized, and the problem that the fire holes are easily blocked by overflowing liquid still cannot be solved.

In addition, most of the traditional burner fire covers sold in the market at present are milled with one groove, namely, the top of the fire cover body is milled with one ignition groove, and the burner fire cover is easy to deform due to the fact that the fire cover body is disconnected at the ignition groove, so that the ignition effect is influenced. For example, a similar fire transfer structure is disclosed in the chinese patent invention "gas furnace head with fire transfer device and flameout protection function" with patent No. 201220464214.0 (publication No. CN202813375U), wherein an outer ring fire spraying ring is provided with a plurality of outer ring fire spraying holes, and an outer ring fire transfer device is further provided on the outer ring fire spraying right, the outer ring fire transfer device is composed of a boss installed on the inner side wall of the outer ring fire spraying ring, an outer ring fire transfer hole and an outer ring fire transfer groove provided on the boss and the outer ring fire spraying ring, the outer ring fire transfer hole is communicated with the outer ring fire transfer groove, the outer ring fire transfer hole and the outer ring fire transfer groove are communicated with one outer ring fire spraying hole, so as to realize rapid fire transfer; the fire transfer groove of the fire transfer structure is open, the fire transfer groove is linear, namely the fire transfer groove is exposed on the surface of the outer ring fire cover, the design of the design has a benefit that the secondary air in the fire transfer groove is sufficiently supplemented, the open fire transfer groove can ensure the supplement of the secondary air during the flame combustion in the fire transfer groove, the flame combustion and the fire transfer are facilitated, and the open fire transfer groove has the characteristic of quick fire transfer, but has two disadvantages, the first open fire transfer groove and the open fire transfer groove are easy to cause the blockage of the fire transfer groove, namely soup flowing from the bottom of a pan is easy to flow into the fire transfer groove, the fire transfer performance is influenced after the blockage, and the main reason for the blockage maintenance of the current fire transfer groove is also included; secondly, the open fire transmission groove has high requirements on the air door of the stove, and after the air door is opened to a large extent, too much air can cause too high air speed, so that flame is separated or flame is released during combustion. For this reason, further improvements in the fire transfer slots of burner fire covers are desired.

Disclosure of Invention

The invention aims to solve the technical problem of providing a burner for a gas stove, which can reduce the probability of fire hole blockage caused by overflowing liquid on the premise of improving the uniformity of a fire cover for heating a pot bottom.

Another object of the present invention is to provide a burner for a gas range, which can improve the strength of a pilot structure and reduce the probability of blocking the pilot portion.

The technical scheme adopted by the invention for solving the technical problems is as follows: the burner for the gas stove comprises

A base;

the inner ring fire cover is arranged on the base, and a central air mixing chamber is formed between the inner ring fire cover and the base;

the outer ring fire cover is also arranged on the base, is positioned at the periphery of the inner ring fire cover, and forms an outer ring gas mixing chamber with the base; an air supplement cavity is formed between the central air mixing chamber and the outer ring air mixing chamber;

the method is characterized in that: the outer ring gas mixing chamber is provided with fire holes along the circumferential direction on the wall surface adjacent to the gas supplementing cavity, a guide ring for storing overflowing liquid is arranged in the gas supplementing cavity, the guide ring can divide the gas supplementing cavity into two relatively independent spaces, and the fire holes of the outer ring gas mixing chamber and the outer wall of the central gas mixing chamber are respectively communicated.

In order to make the overflowing liquid enter the guide ring more quickly, the guide ring comprises an inner side peripheral wall and an outer side peripheral wall, the inner side peripheral wall is gradually inclined downwards from inside to outside along the radial direction, and a liquid storage area is formed together with the outer side peripheral wall. And the inner side peripheral wall is also provided with a periphery for guiding the secondary air in the secondary air supply channel to the inner ring fire cover.

In order to prevent the overflowing liquid from affecting the fire outlet holes of the inner ring wall, the outer ring fire cover comprises an annular top wall, an inner ring wall and an outer ring wall which vertically or obliquely extend downwards from the inner edge and the outer edge of the annular top wall, and an outer ring gas mixing chamber formed by the annular top wall, the inner ring wall and the outer ring wall, wherein the annular top wall is provided with first top walls which gradually incline upwards from the outer periphery to the center at intervals, and the fire outlet holes are formed in the inner ring wall corresponding to the first inner wall of the first top wall. Because the first roof that goes out the fire hole corresponds is for upwards inclining gradually from periphery to central authorities for the overflow falls into the first roof that goes out the fire hole and corresponds, can be fast with the position that the fire hole was kept away from in the direction of overflow.

In order to realize that the fire outlet holes of the outer ring fire cover and the outer fire holes are arranged in a staggered mode and are more uniformly distributed at the bottom of the pot bottom, the annular top wall further comprises a second top wall connected with the adjacent first top wall, the second top wall gradually inclines downwards from the outer periphery to the center, and the outer fire holes communicated with the outer ring gas mixing chamber are formed in the outer ring wall corresponding to the first outer wall of the second top wall. Because outer fire hole corresponds the second roof and is for sloping down gradually from periphery to central authorities for the overflow falls into the second roof that outer fire hole corresponds, can keep away from the position in outer fire hole with the overflow direction fast, and the position that the overflow was derived is not equipped with out the fire hole on the inner ring wall, has avoided the influence of overflow to going out the fire hole for this reason again, the crisscross setting of first roof and second roof still is favorable to the supply of external secondary air in addition, reduces the flue gas.

In order to solve the second technical problem, a transverse ignition hole is radially formed in the outer ring fire cover, a through hole communicated with the outer ring gas mixing chamber is formed in the bottom of the transverse ignition hole, and an opening on the outer side of the transverse ignition hole is located in the center of the outer ignition hole. The transverse ignition hole is of a hidden type fire transfer groove structure hidden in the outer ring fire cover, so that the air door can be enlarged, primary air quantity entering the through hole and the transverse ignition hole is increased, speed is increased, and secondary air can be sucked into the transverse ignition hole more.

In order to realize that the axial distance of the outer fire hole from the cookware along the axial direction of the outer ring fire cover is different, the pot bottom of the cookware is burnt in a more uniform mode, and the outer fire hole is arranged along the outer opening in a gradually upward inclined manner in the circumferential direction of the outer ring fire cover.

In order to prevent the overflow guided by the second top wall from affecting the fire hole, the inner ring wall further comprises a second inner wall except the first inner wall, and the inner side opening of the transverse fire hole is positioned on the second inner wall. In addition, the inner ring wall is approximately square, and the inner opening of the transverse ignition hole is positioned on the second inner wall, so that the distance between the inner ring wall and the inner ring fire cover is the nearest, and the fire can be conducted more quickly.

In order to ensure smooth fire transfer of the transverse ignition hole, the caliber of the transverse ignition hole is wide outside and narrow inside. The outer width, namely the air in the part close to the outer opening is also sufficient, which is also beneficial to fire transmission,

in order to avoid overflowing liquid from blocking the transverse ignition holes to influence fire transmission, the transverse ignition holes are gradually inclined downwards from the inner side opening to the outer side opening.

In order to ensure smooth fire transfer of the transverse ignition hole, sufficient gas supplement is provided for the inner opening and the outer opening of the transverse ignition hole, and the through holes of the transverse ignition hole comprise a first through hole facing the inner opening and a second through hole facing the outer opening.

Compared with the prior art, the invention has the advantages that the guide ring in the air supply cavity can not only store overflowing liquid, but also divide the air supply cavity into relatively independent spaces, air forms two independent air supply channels through the separation effect of the guide ring, so that both the inner ring and the outer ring can be fully combusted, and the guide ring is particularly suitable for the outer ring fire cover with two-ring fire.

Drawings

FIG. 1 is a schematic view of a burner according to an embodiment 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 cross-sectional view at yet another angle of fig. 1.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 4, the burner for a gas stove of the present embodiment includes a base 1, an inner fire cover 2 disposed on the base 1 and forming a central air mixing chamber 21 with the base 1, an outer fire cover 3 disposed on the base 1 and located at the periphery of the inner fire cover 2 and forming an outer air mixing chamber 31 with the base 1, and an air supply chamber 4 formed between the central air mixing chamber 21 and the outer air mixing chamber 31; the outer ring air mixing chamber 31 is provided with fire holes 311 along the circumferential direction on the wall surface adjacent to the air replenishing chamber 4, the air replenishing chamber 4 is internally provided with a guide ring 5 for storing overflowing liquid, the guide ring 5 can divide the air replenishing chamber 4 into two relatively independent spaces which are respectively communicated with the fire hole 311 area of the outer ring air mixing chamber 31 and the outer wall area of the central air mixing chamber 21, the guide ring 5 in the air replenishing chamber 4 not only can store the overflowing liquid but also can divide the air replenishing chamber 4 into the relatively independent spaces, air forms two independent air replenishing channels through the separation effect of the guide ring 5 to ensure that the inner ring and the outer ring can be fully combusted, and the outer ring fire cover is particularly suitable for the outer ring fire cover 3 with two ring fires, the guide ring 5 can avoid the mutual influence of secondary air between the inner ring and the outer ring, and can effectively supplement the secondary air for one ring fire of the two ring fires of the outer ring fire cover 3 close to the inner ring, the positioning is accurate, the gas combustion efficiency is improved, meanwhile, the guide ring 5 can recycle the heat of the outer ring gas mixing chamber 31, secondary air can be preheated, and the improvement of the heat efficiency of the combustor is facilitated.

Specifically, the deflector ring 5 comprises an inner side peripheral wall 51 and an outer side peripheral wall 52, the inner side peripheral wall 51 is gradually inclined downwards from inside to outside along the radial direction, a liquid storage area is formed together with the outer side peripheral wall 52, a plurality of radial secondary air supply channels for communicating the air supply cavity 4 with the outside are further arranged on the base 1 along the circumferential direction at intervals, the inner side peripheral wall 51 is arranged to enable overflowing liquid to enter the deflector ring 5 more quickly, and meanwhile, the inner side peripheral wall 51 is also provided with an outer periphery for guiding secondary air in the secondary air supply channels to the inner ring fire cover 2. The outer ring fire cover 3 includes an annular top wall 34, an inner ring wall 32 and an outer ring wall 33, which extend vertically or obliquely downward from the inner and outer edges of the annular top wall 34, to form an outer ring gas mixing chamber 31, the annular top wall 34 is provided with first top walls 341 which gradually incline upward from the outer periphery to the center at intervals, and the inner ring wall 32 is provided with fire outlets 311 corresponding to the first inner walls 321 of the first top walls 341. Because the fire hole 311 is inclined upward from the outer periphery to the center of the first top wall 341, the overflow falls into the first top wall 341 corresponding to the fire hole 311, and the overflow can be guided to a position away from the fire hole 311 quickly.

In order to realize that the fire outlet holes 311 and the outer fire holes 3311 of the outer ring fire cover 3 are arranged in an inner-outer staggered manner and are more uniformly distributed at the bottom of the pot bottom, the ring-shaped top wall 34 further comprises a second top wall 342 connected with the adjacent first top wall 341, the second top wall 342 is gradually inclined downwards from the outer periphery to the center, and the outer fire holes 3311 communicated with the outer ring gas mixing chamber 31 are arranged on the first outer wall 331 of the outer ring wall 33 corresponding to the second top wall 342. Because the outer fire hole 3311 is inclined downwards from the outer periphery to the center corresponding to the second top wall 342, so that the overflow falls into the second top wall 342 corresponding to the outer fire hole 3311, the overflow can be quickly guided to a position away from the outer fire hole 3311, and the position where the overflow is guided out is not provided with the fire hole 311 on the inner ring wall 32, thereby avoiding the influence of the overflow on the fire hole 311, in addition, the staggered arrangement of the first top wall 341 and the second top wall 342 is also beneficial to the supply of external secondary air, and the smoke is reduced, specifically, the area of the inner ring wall 32 of the outer ring fire cover 3, where the first inner wall 321 corresponds to the four secondary air supply channels of the outer ring air mixing chamber 31, is provided with the fire hole 311, the lower side of the fire hole 311 is a secondary air supply channel, and the upper side of the fire hole 311 is the first top wall 341 inclined upwards from the outer periphery to the center gradually, so as to be beneficial to directly providing the root of the fire hole 311 after the secondary air enters the air supply chamber 4 from, the secondary air introduced from the first top wall 341 supplies the end of the fire hole 311, facilitating sufficient combustion of the fire hole 311.

The transverse ignition hole 30 of the embodiment is a hidden type fire transfer groove structure hidden in the outer ring fire cover 3, specifically, the inner part of the outer ring fire cover 3 is also provided with the transverse ignition hole 30 along the radial direction, the bottom of the transverse ignition hole 30 is provided with a through hole communicated with the outer ring gas mixing chamber 31, the outer side opening 301 of the transverse ignition hole 30 is positioned at the center of the outer fire hole 3311, the transverse ignition hole 30 is a hidden type fire transfer groove structure hidden in the outer ring fire cover 3, this makes it possible to enlarge the damper, so that the amount of primary air entering the through-hole and the lateral pilot holes 30 is increased while the speed is increased, so that more secondary air can be sucked into the transverse ignition hole 30, in order to realize that the axial distance from the outer fire hole 3311 to the cooker along the axial direction of the outer ring fire cover 3 is different, the bottom of the pot is burned in a more uniform manner, and the outer fire holes 3311 are gradually arranged obliquely upward from the outer opening 301 in the circumferential direction of the outer ring fire cover 3. In addition, the inner wall 32 further includes a second inner wall 322 excluding the first inner wall 321, and the inner opening 302 of the transverse ignition hole 30 is located on the second inner wall 322, so that the overflowing liquid guided by the second top wall 342 does not easily affect the ignition hole 311. In order to make the fire transfer of the transverse ignition hole 30 smooth, the caliber of the transverse ignition hole 30 is wide outside and narrow inside, the outside width is enough air in the part close to the outer opening 301, which is also beneficial to the fire transfer, meanwhile, the transverse ignition hole 30 is gradually inclined downwards from the inner opening 302 to the outer opening 301 so as to avoid the influence of the overflowing liquid on the fire transfer caused by blocking the transverse ignition hole 30, finally, in order to realize that the inner opening 301 and the outer opening 301 of the transverse ignition hole 30 are both fully supplemented with gas, the through holes of the transverse ignition hole 30 comprise a first through hole 303 facing the inner opening 302 and a second through hole 304 facing the outer opening 301, the first through hole 303 can supply the gas to the inner opening 302 more specifically, and the second through hole 304 can supply the gas to the outer opening 301 more specifically. Besides the outer fire cover 3 is provided with an inner ring and an outer ring for uniformly heating the pot bottom, the inner fire cover 2 can also adopt a structure that the central ring has a central fire, and the specific structure can refer to the patent of ZL201410355976.0 of the applicant, and is not described herein again.

The specific process is as follows, when the burner works, the secondary air supply channel is divided into two independent channels inside and outside by the flow guide ring 5 positioned in the air supply cavity 4, wherein one path of secondary air independently supplies secondary air to the root of the fire outlet 311 of the outer ring fire cover 3, the other path of secondary air independently supplies secondary air to the fire outlet of the inner ring fire cover 2, meanwhile, the upper side of the fire outlet 311 is a first top wall 341 gradually inclined upwards from the periphery to the center, the secondary air supply introduced from the first top wall 341 supplies the end part of the fire outlet 311, which is beneficial to the sufficient combustion of the fire outlet 311, in addition, as the fire outlet 311 corresponds to the first top wall 341 and gradually inclines upwards from the periphery to the center, the spilled liquid falls into the first top wall 341 corresponding to the fire outlet 311, and the spilled liquid can be quickly guided to the position far away from the fire outlet 311. In addition, the inner opening 302 of the transverse ignition hole 30 is located on the second inner wall 322 of the inner annular wall 32, so that the overflowing liquid guided by the second top wall 342 gradually inclining downwards from the outer circumference to the center is not easily affected by the fire hole 311, and in order to achieve that the inner and outer ring fires of the outer ring fire cover 3 are not affected by the overflowing liquid, the outer fire hole 3311 communicated with the outer ring gas mixing chamber 31 is arranged on the first outer wall 331 of the outer annular wall 33 corresponding to the second top wall 342.

Claims

1. A burner for gas stove comprises

A base (1);

the inner ring fire cover (2) is arranged on the base (1), and a central air mixing chamber (21) is formed between the inner ring fire cover and the base (1);

the outer ring fire cover (3) is also arranged on the base (1), is positioned at the periphery of the inner ring fire cover (2), and forms an outer ring gas mixing chamber (31) with the base (1); an air supplement cavity (4) is formed between the central air mixing chamber (21) and the outer ring air mixing chamber (31);

the method is characterized in that: the outer ring air mixing chamber (31) is provided with a fire outlet (311) on the wall surface adjacent to the air supplementing chamber (1) along the circumferential direction, a diversion ring (5) is arranged in the air supplementing chamber (4), the diversion ring (5) can divide the air supplementing chamber (4) into two air supplementing passages, the fire outlet (411) area of the outer ring air mixing chamber (31) and the outer wall area of the central air mixing chamber (21) are respectively communicated, the diversion ring (5) is V-shaped and comprises an inner side peripheral wall (51) and an outer side peripheral wall (52), the inner side peripheral wall (51) gradually inclines downwards along the radial direction from inside to outside, and the inner side peripheral wall and the outer side peripheral wall (52) form a liquid storage area together.

2. Burner for gas cooktops according to claim 1, characterized in that: the outer ring fire cover (3) comprises an annular top wall (34), an inner ring wall (32) and an outer ring wall (33) which vertically or obliquely extend downwards from the inner edge and the outer edge of the annular top wall (34), and the outer ring gas mixing chamber (31) formed by the annular top wall (34), the inner ring wall (32) and the outer ring wall (33), wherein first top walls (341) which gradually incline upwards from the outer periphery to the center are arranged at intervals on the annular top wall (34), and the fire outlet holes (311) are formed in the inner ring wall (32) corresponding to the first inner wall (321) of the first top wall (341).

3. Burner for gas cooktops according to claim 2, characterized in that: the annular top wall (34) further comprises a second top wall (342) connected with the adjacent first top wall (341), the second top wall (342) is gradually inclined downwards from the outer periphery to the center, and the outer ring wall (33) is provided with an outer fire hole (3311) communicated with the outer ring gas mixing chamber (31) corresponding to the first outer wall (331) of the second top wall (342).

4. Burner for gas cooktops according to claim 3, characterized in that: the inner part of the outer ring fire cover (3) is provided with a transverse ignition hole (30) along the radial direction, the bottom of the transverse ignition hole (30) is provided with a through hole communicated with the outer ring gas mixing chamber (31), and an outer side opening (301) of the transverse ignition hole (30) is positioned in the center of the outer ignition hole (3311).

5. Burner for gas cooktops according to claim 4, characterized in that: the outer fire holes (3311) are gradually arranged in an upward inclined manner from the outer opening (301) along the circumferential direction of the outer ring fire cover (3).

6. Burner for gas cooktops according to claim 5, characterized in that: the inner ring wall (32) further comprises a second inner wall (322) except the first inner wall (321), and the inner side opening (302) of the transverse ignition hole (30) is positioned on the second inner wall (322).

7. The burner for a gas range according to any one of claims 4 to 6, wherein: the caliber of the transverse ignition hole (30) is wide outside and narrow inside.

8. Burner for gas cooktops according to claim 7, characterized in that: the transverse ignition holes (30) are gradually inclined downwards from the inner side opening (302) to the outer side opening (301).

9. Burner for gas cooktops according to claim 8, characterized in that: the through holes of the transverse ignition hole (30) comprise a first through hole (303) facing the inner side opening (302) and a second through hole (304) facing the outer side opening (301).