CN113357631B - Burner fire cover and burner using same - Google Patents
Burner fire cover and burner using same Download PDFInfo
- Publication number
- CN113357631B CN113357631B CN202010153496.1A CN202010153496A CN113357631B CN 113357631 B CN113357631 B CN 113357631B CN 202010153496 A CN202010153496 A CN 202010153496A CN 113357631 B CN113357631 B CN 113357631B
- Authority
- CN
- China
- Prior art keywords
- ignition hole
- cavity
- gas
- central
- transmission channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/84—Flame spreading or otherwise shaping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2207/00—Ignition devices associated with burner
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The invention relates to a burner fire cover and a burner using the same, which is characterized in that: including the interior rampart and the outer rampart that inside and outside interval set up, the interior rampart encloses into central cavity, the outer rampart encloses into with outer rampart jointly has the periphery cavity, at least one ignition hole has been seted up to the wall that corresponds the ignition needle on the outer rampart, still including central rampart, be located central cavity and with the interior rampart interval set up the gas chamber that is used for providing the gas to the ignition hole, enclose and be independent of central cavity and be used for providing the air chamber of air to the ignition hole by central rampart, a transmission channel and the sprayer for transmitting the gas in gas chamber to the ignition hole, compare with prior art, the advantage of the invention lies in: the burner fire cover with the independent ignition channel is provided, the ignition channel with the independent ignition hole can change gas and air according to requirements, and finally, the burner fire cover is of an easily-detachable structure and is convenient for users to clean.
Description
Technical Field
The invention relates to the technical field of household kitchenware, in particular to a burner fire cover capable of improving the ignition success rate and a burner using the burner fire cover.
Background
A common household burner generally has an outer fire cover and an inner fire cover, and together with an ignition needle, a thermocouple (or an ion induction needle with the same function) and other elements, functions of generating flame and maintaining flame, when a plugged fire hole corresponds to a part near the ignition needle, a gas stove is not ignited, when a plugged fire hole corresponds to a part near the thermocouple (or the ion induction needle with the same function), the gas stove is not maintained flame, in addition, in the ignition process of the conventional gas stove, the jetted gas is ignited through high-voltage discharge of the ignition needle, namely, an electric spark is generated at the head of the ignition needle, the jetted gas from the ignition hole is ignited, and then the gas on the fire cover is ignited, so that ignition is completed, although the ignition process is relatively rapid, because the jetted gas corresponding to the ignition hole has a too high flow rate, the jetted gas can both leave the flame or cause the ignition success rate to decrease, therefore, as in the chinese utility model patent No. ZL201820644650.3 (granted with the publication number of CN208804671U) of the present applicant, a burner for a kitchen range is disclosed A burner for a kitchen range comprises a base and a fire cover connected to the base, wherein an ignition needle and a thermocouple which are arranged side by side are arranged at a position adjacent to the peripheral wall of the fire cover, at least one ignition hole is formed at a position corresponding to the peripheral wall of the fire cover, at least one fire protection hole is formed at a position corresponding to the thermocouple of the peripheral wall, a boss which shields the ignition needle, the ignition hole and the fire protection hole is formed by extending the peripheral wall of the fire cover outwards along the radial direction of the fire cover, the ignition needle and the thermocouple are arranged side by side, and the ignition needle and the thermocouple can be prevented from being flameout due to poor fire transmission caused by over-distance, so that the ignition rate and the fire protection efficiency of the gas kitchen range are improved, meanwhile, the boss is arranged above the ignition needle, the ignition hole and the fire protection hole, the shielding and protection effect is also effectively realized, the gas flow of the ignition hole is prevented from being blocked or interfered by the landing of soup and the like, therefore, the ignition rate of the gas cooker is improved, but in order to improve the ignition rate of the gas cooker, besides ensuring that the ignition hole is not blocked by the overflowing liquid, a good air-fuel ratio and the speed of the gas flowing through the ignition hole are also needed, and the phenomenon of unsmooth ignition may be caused by an over-high speed or an improper air-fuel ratio.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a burner fire cover capable of improving the success rate of ignition in view of the above-mentioned prior art.
The second technical problem to be solved by the present invention is to provide a burner fire cover capable of providing sufficient gas at the ignition position in view of the above-mentioned prior art.
The third technical problem to be solved by the present invention is to provide a burner with the burner fire cover in view of the above prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: this combustor fire lid, including interior rampart and the outer rampart that inside and outside interval set up, the rampart encloses into there is central cavity, and the rampart encloses into with outer rampart jointly has a periphery cavity, at least one ignition hole has been seted up to the wall that corresponds the ignition needle on the outer rampart, its characterized in that: also includes:
the central annular wall is positioned in the central cavity and is arranged at intervals with the inner annular wall;
a gas chamber for providing gas to the ignition hole, surrounded by the central annular wall and independent of the central cavity;
an air chamber for providing air to the ignition hole, enclosed by the central annular wall and the inner annular wall;
the transmission channel is used for transmitting the fuel gas in the fuel gas cavity to the ignition hole and is arranged on a connecting part which is connected between the inner ring wall and the outer ring wall, and the gas outlet end of the transmission channel is communicated with the ignition hole; and
and the ejector is used for ejecting the fuel gas of the fuel gas cavity into the transmission channel, is arranged on the central annular wall, and is communicated with the gas inlet end of the transmission channel through the air cavity.
In order to avoid that the gas flowing out of the ignition hole has too high speed to cause ignition failure, a buffer cavity for buffering the gas outlet speed is preferably arranged between the gas outlet end of the transmission channel and the ignition hole. The buffer cavity can effectively reduce the speed of the fuel gas flowing out of the transmission channel.
In order to increase the transmission speed of the fuel gas in the transmission channel, preferably, the transmission channel is divided into a contraction section of which the bell mouth faces the ejector and a diffusion section of which the pipe diameter gradually expands towards the buffer cavity according to the change of the cross-sectional area, and the pipe diameter tail end of the diffusion section is smaller than the buffer cavity. Wherein the contraction section of the transmission channel has the function of accelerating the speed of the fuel gas, the diffusion section has the function of promoting the mixing of the air flowing into the transmission channel from the air cavity and the fuel gas flowing out of the fuel gas cavity, so as to better provide sufficient fuel gas and air for the ignition hole, but relatively speaking, the defect of short distance is caused by arranging the transmission channel in the burner fire cover, and the problem is just solved by arranging the buffer cavity, wherein the arrangement of the buffer cavity can ensure that the air/fuel gas mixture injected from the diffusion section of the transmission channel has a buffer space, the air and the fuel gas after being uniformly mixed by the buffer cavity enter the ignition hole, so that the mutual impact of the air and the fuel gas due to the convergence in different directions is avoided, the mixing uniformity of the air and the fuel gas is further improved, the air suction rate is improved, and meanwhile, the kinetic energy loss can be effectively reduced, so that the diffusion is uniform, therefore, stable and uniform flame can be kept at the ignition hole of the fire cover supplied by the gas cavity, and the ignition success rate of the fire cover is effectively improved.
In order to solve the second technical problem, preferably, the outer annular wall extends outward along a radial direction of the ignition cover to form a boss which is shielded above the ignition hole, a convex ring which forms a waterproof brim with a bottom surface of the boss extends downward from a periphery of a bottom of the boss, the convex ring and the boss enclose together to form a concave cavity, the outer annular wall is provided with auxiliary ignition parts which are communicated with the peripheral cavity corresponding to a left side and/or a right side of the ignition hole, each auxiliary ignition part comprises a first auxiliary ignition hole, and an included angle α between a central line of the first auxiliary ignition hole and the bottom of the boss is an obtuse angle. Because the included angle alpha between the central line of the first auxiliary ignition hole and the bottom of the boss is an obtuse angle, the fuel gas flowing out of the first auxiliary ignition hole directly collides with the bottom of the boss, the dispersity of the fuel gas at the bottom of the boss is improved, the flow rate is reduced, the fuel gas stays at the bottom of the concave cavity of the boss for a longer time, and the success rate of primary ignition is increased.
Also in order to make the bottom of the cavity of the boss have more fuel gas, preferably, the auxiliary ignition portion further includes a second auxiliary ignition hole communicated with the first auxiliary ignition hole, the second auxiliary ignition hole is gradually upward and inclined toward the bottom surface of the boss from an air inlet end communicated with the first auxiliary ignition hole to an air outlet end communicated with the bottom surface of the boss, and the aperture of the second auxiliary ignition hole is larger than that of the first auxiliary ignition hole. Because the distance from the first auxiliary ignition hole to the concave cavity of the boss is smaller than that of the second auxiliary ignition hole, the gas flowing out of the first auxiliary ignition hole firstly directly rushes out to reach the concave cavity of the boss and collides with the concave cavity and then turns back downwards, and the gas at the ignition hole is supplemented; when the aperture of the second auxiliary ignition hole is larger than that of the first auxiliary ignition hole, the speed of the fuel gas discharged from the second auxiliary ignition hole is lower, so that the two fuel gas flows impact each other to form turbulent flow, the fuel gas stays in the concave cavity of the boss for a longer time, and the success rate of primary ignition is increased.
In order to increase the outflow path of the combustion gas in the second auxiliary ignition hole, it is preferable that an included angle β between a center line of the second auxiliary ignition hole and a center line of the first auxiliary ignition hole is an acute angle.
Furthermore, the auxiliary ignition part also comprises a third auxiliary ignition hole which is connected with the second auxiliary ignition hole and the bottom surface of the boss and is transversely arranged, and the lowest end of the hole wall of the third auxiliary ignition hole is lower than the lowest end of the convex ring. Thus, one part of the gas flowing out of the third auxiliary ignition hole flows into the concave cavity of the boss, and the other part of the gas can also increase the gas quantity around the ignition hole, so that the sufficient gas quantity at the ignition hole is promoted.
In order to solve the third technical problem, the invention also provides a burner with the burner fire cover, which comprises a base and is characterized in that: the burner fire cover is disposed over the base, wherein the base includes:
the peripheral gas channel is correspondingly communicated with the peripheral cavity;
a central gas passage, independent of the peripheral cavity, communicating with the gas cavity, and
and the air channel is positioned between the peripheral gas channel and the central gas channel and is communicated with the air cavity and the outside.
In order to realize the connection between the central gas channel and the peripheral gas channel, preferably, the base comprises a first injection pipe connected with the peripheral gas channel and a second injection pipe connected with the central gas channel, and the pipe wall corresponding to the central gas channel is connected with the pipe wall corresponding to the peripheral gas channel through a connecting rib.
In order to achieve a proper air-fuel ratio at the ignition hole, it is preferable that an adjusting member capable of shielding a gap enclosed between the central gas passage and the peripheral gas passage is detachably connected to the bottom of the central gas passage, and the adjusting member is capable of moving up and down relative to the bottom of the central gas passage to partially change the opening size of the gap. The air inlet amount of the air channel is changed by changing the opening size of the gap through the up-and-down movement of the adjusting piece.
Compared with the prior art, the invention has the advantages that: the invention provides a burner fire cover with an independent ignition channel, wherein a transmission channel arranged in the burner fire cover can promote gas in a gas cavity and air in an air cavity to better enter the transmission channel due to the injection action of an injector so as to obtain the optimal air-fuel ratio and further effectively improve the ignition success rate.
Drawings
FIG. 1 is a schematic view of a burner fire cover in an embodiment of the invention;
FIG. 2 is a schematic view of the configuration of the bottom of the burner cap of FIG. 1;
FIG. 3 is a cross-sectional view at an angle of FIG. 1;
FIG. 4 is a cross-sectional view at another angle from FIG. 1;
FIG. 5 is a cross-sectional view at yet another angle of FIG. 1;
FIG. 6 is a schematic view of a burner fire cover placed over a base in an embodiment of the present invention;
FIG. 7 is a schematic view of the structure of FIG. 6 at another angle;
FIG. 8 is a cross-sectional view at an angle of FIG. 6;
fig. 9 is a cross-sectional view at yet another angle from fig. 6.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in FIGS. 1 to 9, the preferred embodiment of the present invention is shown. The burner cap of the embodiment comprises an inner annular wall 1 and an outer annular wall 2 which are arranged at intervals, wherein the inner annular wall 1 encloses a central cavity 11, the inner annular wall 1 and the outer annular wall 2 jointly enclose an outer peripheral cavity 21, the wall surface of the outer annular wall 2 corresponding to an ignition needle 3 is provided with at least one ignition hole 22, the burner cap further comprises a central annular wall 4 which is positioned in the central cavity 11 and arranged at an interval with the inner annular wall 1, a gas cavity 5 which is used for providing gas for the ignition hole 22 and enclosed by the central annular wall 4 and is independent of the central cavity 11, an air cavity 6 which is used for providing air for the ignition hole 22 and enclosed by the central annular wall 4 and the inner annular wall 1, and a transmission channel 7 which is used for transmitting the gas of the gas cavity 5 to the ignition hole 22, the transmission channel 7 is arranged on a connecting part 20 which is connected between the inner annular wall 1 and the outer annular wall 2, an air outlet end 71 of the transmission channel 7 is communicated with the ignition hole 22, wherein the central annular wall 4 is further provided with an injector 8, the injector 8 is used for injecting the fuel gas of the fuel gas cavity 5 into the transmission channel 7 and is communicated with the gas inlet end 72 of the transmission channel 7 through the air cavity 6, the burner fire cover is provided with an independent ignition channel, the transmission channel 7 arranged in the burner fire cover can promote the fuel gas of the fuel gas cavity 5 and the air in the air cavity 6 to better enter the transmission channel 7 due to the injection effect of the injector 8 so as to obtain the optimal air-fuel ratio, and further the ignition success rate is effectively improved.
Specifically, in order to avoid that the gas flowing out of the ignition hole 22 is too fast and causes ignition failure, a buffer cavity 9 for buffering the gas outlet speed is arranged between the gas outlet end 71 of the transmission channel 7 and the ignition hole 22, the buffer cavity 9 can effectively reduce the speed of the gas flowing out of the transmission channel 7, and in order to increase the transmission speed of the gas in the transmission channel 7, the transmission channel 7 is divided into a contraction section 73 with a bell mouth facing the injector 8 and a diffusion section 74 with a pipe diameter gradually expanding to the buffer cavity 9 according to the change of the cross section area, the pipe diameter of the diffusion section 74 is smaller than that of the buffer cavity 9, wherein the contraction section 73 of the transmission channel 7 has the function of accelerating the gas speed, and the diffusion section 74 has the function of promoting the air flowing into the transmission channel 7 from the air cavity 6 to be mixed with the gas flowing out of the gas cavity 5, so as to better provide sufficient gas and air to the ignition hole 22, however, relatively speaking, the transmission channel 7 is arranged in the burner fire cover, which causes the defect of short distance, and the arrangement of the buffer chamber 9 just solves the problem, wherein the arrangement of the buffer chamber 9 enables the air/gas mixture injected from the diffusion section 74 of the transmission channel 7 to have a buffer space, and the air and the gas after being uniform through the buffer chamber 9 are mixed and enter the ignition hole 22, so as to avoid mutual collision of the air and the gas due to convergence in different directions, further improve the uniformity of mixing of the air and the gas, improve the air suction rate, and simultaneously effectively reduce the kinetic energy loss and enable the kinetic energy to be uniformly diffused, so that the ignition hole 22 provided for the fire cover in the gas chamber 5 can keep stable and uniform flame, thereby effectively improving the ignition success rate of the fire cover.
In addition, the outer ring wall 2 extends outwards along the radial direction of the fire cover to form a boss 23 covering the upper part of the ignition hole 22, the periphery of the bottom part of the boss 23 extends downwards to form a convex ring 231 forming a waterproof brim with the bottom surface of the boss 23, the convex ring 231 and the boss 23 enclose together to form a concave cavity 232, the outer ring wall 2 is provided with an auxiliary ignition part 10 communicated with the peripheral cavity 21 corresponding to the left side and/or the right side of the ignition hole 22, for better auxiliary ignition, the auxiliary ignition part 10 of the embodiment is arranged on both the left side and the right side of the ignition hole 22, specifically, the auxiliary ignition part 10 comprises a first auxiliary ignition hole 101, the included angle α between the central line of the first auxiliary ignition hole 101 and the bottom part of the boss 23 is an obtuse angle, for example, the included angle α is not less than 120 degrees and not more than 135 degrees, and the included angle α is not more than 135 degrees in the embodiment, because the included angle α between the central line of the first auxiliary ignition hole 101 and the bottom part 23 is an obtuse angle, so that the gas flowing out from the first auxiliary ignition hole 101 directly impacts the bottom part 23, the dispersivity of the fuel gas at the bottom of the boss 23 is improved, and the flow rate is reduced, so that the fuel gas stays for a longer time at the bottom of the concave cavity 232 of the boss 23, and the success rate of one-time ignition is increased. Similarly, in order to make the bottom of the cavity 232 of the boss 23 have more gas, the auxiliary ignition portion 10 further includes a second auxiliary ignition hole 102 communicated with the first auxiliary ignition hole 101, the second auxiliary ignition hole 102 is gradually inclined upward and toward the bottom surface of the boss 23 from an air inlet end 1021 communicated with the first auxiliary ignition hole 101 to an air outlet end 1022 communicated with the bottom surface of the boss 23, the aperture of the second auxiliary ignition hole 102 is larger than that of the first auxiliary ignition hole 101, and because the distance from the first auxiliary ignition hole 101 to the cavity 232 of the boss 23 is smaller than that of the second auxiliary ignition hole 102, the gas flowing out of the first auxiliary ignition hole 101 directly rushes out to reach the cavity 232 of the boss 23 and collides with and then turns back downward, thereby supplementing the gas at the ignition hole 22; when the diameter of the second auxiliary ignition hole 102 is larger than that of the first auxiliary ignition hole 101, the gas outlet speed is lower, so that when the gas flows out of the second auxiliary ignition hole 102, two gas flows impact each other to form turbulent flow, the gas stays in the concave cavity 232 of the boss 23 for a longer time, and the one-time ignition success rate is increased.
In order to increase the outflow path of the gas in the second auxiliary ignition hole 102, the included angle beta between the center line of the second auxiliary ignition hole 102 and the center line of the first auxiliary ignition hole 101 is an acute angle, beta is more than or equal to 20 degrees and less than or equal to 35 degrees, beta is more than or equal to 30 degrees in the embodiment, so that the second auxiliary ignition hole 102 is more upward away from the concave cavity 232 of the boss 23 than the first auxiliary ignition hole 101, the whole gas path of the second auxiliary ignition hole 102 is longer, wherein the auxiliary ignition part 10 also comprises a third auxiliary ignition hole 103 which is connected with the bottom surfaces of the second auxiliary ignition hole 102 and the boss 23 and is transversely arranged, the lowest end of the hole wall of the third auxiliary ignition hole 103 is lower than the lowest end of the convex ring 231, so that a part of the gas flowing out of the third auxiliary ignition hole 103 flows into the concave cavity 232 of the boss 23, and the other part of the gas can also increase the gas quantity around the ignition hole 22, so as to promote the sufficient gas quantity at the ignition hole 22.
Referring to fig. 6 to 9, in order to show a schematic structure in which a burner cap is disposed on a burner base 30, the burner includes a base 30, and the burner cap is disposed on the base 30, wherein the base 30 includes an outer peripheral transmission passage 301 communicating with the outer peripheral cavity 21, a central transmission passage 302 communicating with a gas chamber 5 independently of the outer peripheral cavity 21, and an air passage 303 located between the outer peripheral transmission passage 301 and the central transmission passage 302 and communicating with the air chamber 6 and the outside, and the amount of gas in the gas chamber 5 and the amount of air in the air chamber 6 can be changed adaptively to the outer peripheral transmission passage 301 and the air passage 303 as required, and in order to achieve connection between the central transmission passage 302 and the outer peripheral transmission passage 301, preferably, the base 30 includes a first injection pipe 304 connected to the outer peripheral transmission passage 301 and a second injection pipe 305 connected to the central transmission passage 302, the pipe wall corresponding to the central transmission channel 302 is connected with the pipe wall corresponding to the peripheral transmission channel 301 through the connecting rib 40, finally, in order to achieve that the ignition hole 22 has a proper air-fuel ratio, the bottom of the central transmission channel 302 is detachably connected with an adjusting piece 50 capable of shielding a gap 60 enclosed between the central transmission channel 302 and the peripheral transmission channel 301, the adjusting piece 50 can move up and down relative to the bottom of the central transmission channel 302, the opening size of the gap 60 is locally changed, the air inflow of the air channel 303 is changed by changing the opening size of the gap 60 through the up and down movement of the adjusting piece 50, and the adjusting piece 50 is in a circular plate shape from the perspective of simple structure.
The specific ignition process of the burner is as follows: when the gas stove is produced, the distance between the adjusting piece 50 and the central transmission channel 302 is adjusted according to the requirements of a user to determine the opening size of the gap 60 and further determine the air inflow of air entering the air channel 303, the air in the air cavity 6 and the gas in the gas cavity 5 are injected into the transmission channel 7 under the action of the injector 8 during ignition, the buffer cavity 9 in the transmission channel 7 enables the air/gas mixture injected from the diffusion section 74 of the transmission channel 7 to have a buffer space, the air and the gas after being uniform through the buffer cavity 9 are mixed and then enter the ignition holes 22 to avoid mutual collision of the air and the gas due to convergence in different directions, so that the ignition holes 22 of the ignition cover can keep stable and uniform flames, the ignition success rate of the ignition cover is effectively improved, and in addition, the first auxiliary ignition holes 101 on the left side and the right side of the ignition holes 22 are arranged, The second auxiliary ignition hole 102 forms turbulent flow after being impacted with the concave cavity 232 of the boss 23 successively, so that the dispersity of the fuel gas at the bottom of the boss 23 is improved, the flow rate is reduced, the fuel gas stays at the bottom of the concave cavity 232 of the boss 23 for a longer time, and the success rate of primary ignition is increased.
Claims (10)
1. The utility model provides a combustor fire lid, is including interior rampart (1) and outer rampart (2) that inside and outside interval set up, and interior rampart (1) encloses into central cavity (11), and interior rampart (1) encloses into outer cavity (21) with outer rampart (2) jointly, at least one ignition hole (22), its characterized in that have been seted up to the wall that corresponds ignition needle (3) on outer rampart (2): also comprises:
the central annular wall (4) is positioned in the central cavity (11) and is arranged at intervals with the inner annular wall (1);
a gas chamber (5) for supplying gas to said ignition hole (22), enclosed by said central annular wall (4) and independent of said central cavity (11);
an air chamber (6) for supplying air to the ignition hole (22), which is enclosed by the central annular wall (4) and the inner annular wall (1);
the transmission channel (7) is used for transmitting the fuel gas in the fuel gas cavity (5) to the ignition hole (22) and is arranged on a connecting part (20) connected between the inner ring wall (1) and the outer ring wall (2), and an air outlet end (71) of the transmission channel (7) is communicated with the ignition hole (22); and
the ejector (8) is used for ejecting the fuel gas of the fuel gas cavity (5) to the transmission channel (7), is arranged on the central annular wall (4), and is communicated with the gas inlet end (72) of the transmission channel (7) through the air cavity (6), and the air cavity (6) is communicated with the gas inlet end (72) of the transmission channel (7).
2. The burner fire cover of claim 1, wherein: a buffer cavity (9) for buffering the gas outlet speed is arranged between the gas outlet end (71) of the transmission channel (7) and the ignition hole (22).
3. The burner fire cover of claim 2, wherein: the transmission channel (7) is divided into a contraction section (73) with a bell mouth facing the ejector (8) and a diffusion section (74) with a pipe diameter gradually expanding towards the buffer cavity (9) according to the change of the cross sectional area, and the pipe diameter tail end of the diffusion section (74) is smaller than the buffer cavity (9).
4. The burner fire cover according to any one of claims 1 to 3, characterized in that: the outer ring wall (2) outwards extends along the radial direction of the ignition cover to form a boss (23) which is shielded above the ignition hole (22), the periphery of the bottom of the boss (23) downwards extends to form a convex ring (231) which forms a waterproof eave with the bottom surface of the boss (23), the convex ring (231) and the boss (23) jointly enclose to form a cavity (232), the outer ring wall (2) is provided with an auxiliary ignition part (10) which is communicated with the peripheral cavity (21) corresponding to the left side and/or the right side of the ignition hole (22), the auxiliary ignition part (10) comprises a first auxiliary ignition hole (101), and the included angle alpha between the central line of the first auxiliary ignition hole (101) and the bottom of the boss (23) is an obtuse angle.
5. The burner fire cover of claim 4, wherein: the auxiliary ignition part (10) further comprises a second auxiliary ignition hole (102) communicated with the first auxiliary ignition hole (101), the second auxiliary ignition hole (102) gradually inclines upwards and towards the bottom surface of the boss (23) from an air inlet end (1021) communicated with the first auxiliary ignition hole (101) to an air outlet end (1022) communicated with the bottom surface of the boss (23), and the aperture of the second auxiliary ignition hole (102) is larger than that of the first auxiliary ignition hole (101).
6. The burner fire cover of claim 5, wherein: an included angle beta between the central line of the second auxiliary ignition hole (102) and the central line of the first auxiliary ignition hole (101) is an acute angle.
7. The burner fire cover of claim 6, wherein: the auxiliary ignition part (10) further comprises a third auxiliary ignition hole (103) which is connected to the second auxiliary ignition hole (102) and the bottom surface of the boss (23) and transversely arranged, and the lowest end of the hole wall of the third auxiliary ignition hole (103) is lower than the lowest end of the convex ring (231).
8. A burner with a burner cap according to any one of claims 1 to 7, comprising a base (30), characterized in that: the burner cap is disposed over the base (30), wherein the base (30) includes:
a peripheral transfer channel (301) in corresponding communication with the peripheral cavity (21);
a central transfer channel (302), independent of the peripheral cavity (21), communicating with the gas chamber (5), and
an air channel (303) located between the peripheral transfer channel (301) and the central transfer channel (302), communicating with the air chamber (6) and the outside.
9. The burner of claim 8, wherein: the base (30) comprises a first injection pipe (304) connected with the peripheral transmission channel (301) and a second injection pipe (305) connected with the central transmission channel (302), and the pipe wall corresponding to the central transmission channel (302) is connected with the pipe wall corresponding to the peripheral transmission channel (301) through a connecting rib (40).
10. The burner of claim 9, wherein: the bottom of the central transmission channel (302) is detachably connected with an adjusting piece (50) capable of shielding a gap (60) enclosed between the central transmission channel (302) and the peripheral transmission channel (301), and the adjusting piece (50) can move up and down relative to the bottom of the central transmission channel (302) so as to partially change the opening size of the gap (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010153496.1A CN113357631B (en) | 2020-03-06 | 2020-03-06 | Burner fire cover and burner using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010153496.1A CN113357631B (en) | 2020-03-06 | 2020-03-06 | Burner fire cover and burner using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113357631A CN113357631A (en) | 2021-09-07 |
| CN113357631B true CN113357631B (en) | 2022-08-12 |
Family
ID=77524218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010153496.1A Active CN113357631B (en) | 2020-03-06 | 2020-03-06 | Burner fire cover and burner using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113357631B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135903A (en) * | 2021-12-31 | 2022-03-04 | 杭州老板电器股份有限公司 | Central fire cover and gas stove |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2011286C2 (en) * | 2013-08-09 | 2015-02-10 | Intell Properties B V | GAS BURNER |
| WO2016142872A1 (en) * | 2015-03-10 | 2016-09-15 | Defendi Italy S.R.L. | Improved gas bruner |
| CN106322378A (en) * | 2015-06-30 | 2017-01-11 | 高珉 | Combined combustor |
| CN205002116U (en) * | 2015-09-21 | 2016-01-27 | 宁波方太厨具有限公司 | Inner ring fire lid of combustor |
| CN110207107A (en) * | 2018-08-09 | 2019-09-06 | 华帝股份有限公司 | Three-ring fire divider and three-ring combustor thereof |
| CN210069836U (en) * | 2018-12-29 | 2020-02-14 | 李少杰 | Gas stove burner |
-
2020
- 2020-03-06 CN CN202010153496.1A patent/CN113357631B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113357631A (en) | 2021-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113357631B (en) | Burner fire cover and burner using same | |
| CN210861084U (en) | Upper air inlet burner | |
| CN111964054B (en) | Inner ring fire cover for combustor and combustor with inner ring fire cover | |
| CN109000230B (en) | Burner with a burner body | |
| CN110762523A (en) | Gas burner with strong injection force and gas stove with burner | |
| CN112856410B (en) | Burner for gas stove and stove applying same | |
| CN219713348U (en) | Kitchen range | |
| CN210861099U (en) | Combustor with improve combustion efficiency | |
| CN112240550B (en) | Upper air inlet burner | |
| CN210921388U (en) | Combustor and cooking utensils | |
| CN217441632U (en) | Burner for gas stove | |
| CN214791099U (en) | Upper air inlet burner and cooker applying same | |
| CN216307777U (en) | Upper air inlet burner and cooker applying same | |
| CN112128761A (en) | Immersed low-nitrogen gas combustion device | |
| CN215863380U (en) | Burner for gas stove | |
| CN112664932B (en) | Burner for gas stove | |
| CN215523284U (en) | Burner for gas stove | |
| CN215863379U (en) | Upper air inlet burner and cooker applying same | |
| WO2019223402A1 (en) | Upper air inlet cooker burner | |
| CN215765083U (en) | Upper air inlet burner | |
| CN213237520U (en) | Upper air inlet burner and cooker applying same | |
| CN216114025U (en) | Fire cover and furnace end and combustor with same | |
| CN213334370U (en) | Combustor with comb ring | |
| CN213019631U (en) | Fire lid and furnace end that outer fire is stable | |
| CN216307776U (en) | Upper air inlet burner and cooker applying same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |