CN111911927B - Multi-air-channel energy-gathering cover and gas stove - Google Patents
Multi-air-channel energy-gathering cover and gas stove Download PDFInfo
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- CN111911927B CN111911927B CN202010925527.0A CN202010925527A CN111911927B CN 111911927 B CN111911927 B CN 111911927B CN 202010925527 A CN202010925527 A CN 202010925527A CN 111911927 B CN111911927 B CN 111911927B
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- 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
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- 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
- F23D14/62—Mixing devices; Mixing tubes
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- 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
- F24C15/00—Details
- F24C15/10—Tops, e.g. hot plates; Rings
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a multi-air-channel energy gathering cover and a gas stove, and belongs to the technical field of gas stoves. The multi-air-channel energy-gathering cover comprises an annular lower cover, an inner ring air channel and an outer ring ventilation opening are formed in the lower end of the lower cover, the inner ring air channel extends along the radial direction of the lower cover, and the inner ring air channel and the outer ring ventilation opening are used for supplying secondary air between the outside of the lower cover and the inside of the lower cover to conveniently supplement secondary air to the combustor. The lower cover is provided with the outer ring ventilation opening and the inner ring air duct, so that secondary air is distributed and is pertinently sent to the fire hole of the inner fire cover and the fire hole of the outer fire cover, the combustion efficiency of fuel is improved, the demand of the inner fire cover for oxygen is ensured, the condition that the fuel sprayed by the inner fire cover is incompletely combusted is solved, smoke is reduced, and the thermal efficiency is further improved.
Description
Technical Field
The invention relates to the field of gas cookers, in particular to a multi-air-channel energy-gathering cover and a gas stove.
Background
With the continuous development of gas appliance products, high-end gas stove products on the market are also pursuing larger heat load and higher heat efficiency, so that products with energy gathering covers, namely single-layer covers, double-layer covers and even multi-layer covers, appear. After the energy-gathering cover is adopted, the advantages can be brought: for example, the flue gas after combustion is separated from secondary air, so that the secondary air can be supplemented to the root of flame in a better and purer manner, and the heat efficiency is improved; for example, after the energy-gathering cover is added, a large part of hot air (thermal radiation and thermal convection) can be reduced from going to the panel.
However, the amount of secondary air flowing to the inner fire cover and the outer fire cover cannot be controlled by the existing energy-gathering cover, the secondary air often flows to the root of the fire hole of the outer fire cover due to the influence of the winding suction force of flame of the outer fire cover, the secondary air at the outer fire cover is excessive to generate smoke, the smoke only goes away part of heat, the air of the inner fire cover is insufficient, and even the situation of insufficient combustion occurs.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a multi-duct energy collecting cover and a gas stove.
The invention solves the technical problems through the following technical scheme:
a multi-duct concentrator cap comprising an annular lower cap having at its lower end:
the inner ring air duct is used for circulating secondary air between the outside of the lower cover and the inside of the lower cover, extends along the radial direction of the lower cover, and is provided with an inner ring air inlet and an inner ring air outlet; and the combination of (a) and (b),
the outer ring ventilation opening is used for circulating secondary air between the outside of the lower cover and the inside of the lower cover, and the distance from the outer ring ventilation opening to the central axis of the lower cover is greater than the distance from the inner ring air outlet to the central axis of the lower cover; the outer ring ventilation openings and the inner ring air duct are arranged at intervals along the circumferential direction of the lower cover.
Preferably, the lower cover comprises an outer cover body, an inner cover body and a cover supporting leg, the lower end of the outer cover body is connected with the lower end of the inner cover body, and the cover supporting leg is fixed on the outer cover body and/or the inner cover body; the outer ring ventilation opening is defined by two adjacent cover supporting legs and the lower end of the outer cover body.
Preferably, the lower portion of the outer cover body is bent downwards to form a curved shell portion and a wind control portion, the curved shell portion and the wind control portion are located on two sides of the bent position respectively, the wind control portion is connected with the two cover support legs, and the two cover support legs and the wind control portion form the outer ring ventilation opening in a surrounding mode.
Preferably, the lower cover further comprises an inner ring ventilation part, the inner ring ventilation part is fixed at the lower end of the inner cover body and the lower end of the lower cover body, and an inner ring air channel is formed in the inner ring ventilation part.
Preferably, the inner ring ventilation part comprises an upper plate, a lower plate and two side plates, and the upper plate, the lower plate and the two side plates enclose the inner ring air duct; the upper plate is fixed at the lower end of the outer cover body and the lower end of the inner cover body.
Preferably, the two side plates of the inner ring ventilation part are oppositely arranged and are arranged at intervals along the circumferential direction of the lower cover; and the distance between the two side plates is gradually reduced from the inner ring air inlet to the inner ring air outlet.
Preferably, the lower plate includes a flat plate portion and a positioning portion, the lower surface of the flat plate portion is not lower than the lower surface of the cover leg, one end of the positioning portion is connected to the flat plate portion, the other end of the positioning portion, the side plate and the upper plate form the inner ring air outlet, and the positioning portion is higher than the flat plate portion.
Preferably, the distance from the inner ring air inlet to the central axis of the lower cover is greater than the distance from the outer ring ventilation opening to the central axis of the lower cover;
and/or the lower end of the lower cover is provided with two inner ring air ducts and two outer ring ventilation openings, wherein the two inner ring air ducts are symmetrical relative to the central axis of the lower cover, and the two outer ring ventilation openings are symmetrical relative to the central axis of the lower cover.
Preferably, the multi-duct energy gathering cover further comprises an upper cover, the upper cover comprises an upper cover main body and pan support legs, the upper cover main body is used for reflecting heat radiation upwards, the upper cover main body and the lower cover are integrally formed or detachably connected, the pan support legs are positioned on the upper cover main body and protrude out of the upper cover main body, and the pan support legs are arranged along the circumferential direction of the upper cover main body at intervals.
A gas cooker comprising a multi-duct energy concentrating cover as described in any one of the above.
Preferably, the gas range further comprises a gas mixing chamber, and the gas mixing chamber comprises:
a tray body;
the inner ring gas transmission column is fixed in the center of the disc body; and
the lower end of the outer ring gas transmission column is fixed on the disk body, and the outer ring gas transmission columns are arranged around the inner ring gas transmission column at intervals;
and the inner ring air outlet of the inner ring air duct is positioned between the two outer ring air transmission columns.
Preferably, the gas stove further comprises an inner fire cover and an outer fire cover, the inner fire cover is arranged at the upper end of the inner ring gas transmission column, the outer fire cover is arranged on the outer ring gas transmission column, a gap is formed between the outer wall of the inner fire cover and the inner part of the outer fire cover, and a gap is formed between the outer wall of the outer fire cover and the multi-duct energy-gathering cover;
the upper surface of the tray body, the side walls of the two adjacent outer ring gas transmission columns and the lower surface of the outer fire cover enclose to form a gas transmission channel, and the inner ring air outlet is attached to the inner wall of the gas transmission channel.
Preferably, the air mixing chamber is provided with two outer ring air transmission columns which are symmetrically arranged relative to the central axis of the inner ring air transmission column, two air transmission channels are formed between the two outer ring air transmission columns, the multi-air-channel energy gathering cover is provided with two inner ring air channels, and the inner ring air channels correspond to the air transmission channels one to one.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
in the invention, the outer ring ventilation opening and the inner ring air duct are arranged on the lower cover, so that the secondary air is distributed and is pertinently sent to the fire hole of the inner fire cover and the fire hole of the outer fire cover, thereby improving the combustion efficiency of the fuel. The inner ring channel of the invention also supplements secondary air to the inner fire cover, thereby ensuring the oxygen demand of the combustion of the inner fire cover, solving the problem of incomplete combustion of fuel injected by the inner fire cover, reducing smoke and improving heat efficiency.
Drawings
FIG. 1 is a schematic structural view of a multi-duct concentrator cap according to embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of a lower cover according to embodiment 1 of the present invention;
FIG. 3 is an environmental cut-away view of a multi-duct concentrator cap according to example 1 of the present invention;
FIG. 4 is an environmental cut-away view of a multi-duct concentrator cap according to example 1 of the present invention;
FIG. 5 is a sectional view of an environment in which the multi-duct concentrator cap of example 1 of the present invention is used;
fig. 6 is a schematic structural view of a gas range according to embodiment 2 of the present invention;
fig. 7 is a schematic structural view of a gas range according to embodiment 2 of the present invention;
fig. 8 is a sectional view of a gas range of embodiment 2 of the present invention;
fig. 9 is a sectional view of a gas range of embodiment 2 of the present invention, in which lines including arrows are used to illustrate the flow direction of secondary air supplied to an inner burner cap.
Description of reference numerals:
Multi-duct energy collecting cover 100
Inner ring air duct 111
Inner ring air inlet 1111
Inner ring air outlet 1112
Curved shell 1132
Positioning part 1165
Lower housing outer part 120
Mounting hole 1411
Inner ring gas transmission column 232
Outer ring gas delivery column 233
Liquid containing tray 300
Locating slot 310
Detailed Description
The present invention is further illustrated by the following examples, but is not limited thereby in the scope of the examples described below.
Example 1
The present embodiment can be understood with reference to the lines of FIGS. 1-5. The embodiment of the invention provides a multi-duct energy gathering cover which is used in a gas stove 1000 and is arranged around a burner 200 of the gas stove 1000, wherein the burner 200 is provided with an inner fire cover 210 and an outer fire cover 220, the inner fire cover 210 and the outer fire cover 220 are coaxially arranged, and the outer wall of the inner fire cover 210 and the inner wall of the outer fire cover 220 are kept at a distance in the radial direction.
The multi-duct energy concentrating cover 100 of the present embodiment includes a ring-shaped lower cover 110, and the lower end of the lower cover 110 has an inner ring duct 111, and the inner ring duct 111 is used for circulating secondary air between the lower cover exterior 120 and the lower cover interior 130, so as to supplement the secondary air to the burner 200.
The inner annular air duct 111 extends along the radial direction of the lower cover 110, and both ends of the inner annular air duct 111 respectively have an inner annular air inlet 1111 and an inner annular air outlet 1112, and the inner annular air outlet 1112 is closer to the central axis of the lower cover 110 than to the inner annular air inlet 1111. In the operation process of the burner 200, there is a suction force around the burner, and part of the air outside the lower hood 120 flows to the burner 200 as secondary air along the inner ring air duct 111 under the action of the suction force, accordingly, on one hand, the inner ring air duct has a guiding effect on the flow direction of the secondary air, and on the other hand, the inner ring air duct can send the secondary air to a position closer to the middle of the burner 200, so that more secondary air can flow to the space between the inner fire cover 210 and the outer fire cover 220, thereby improving the thermal efficiency of the inner fire cover 210.
The lower end of the lower shroud 110 also has an outer annular vent opening 112 for communicating secondary air between the lower shroud exterior 120 and the lower shroud interior 130. The distance from the outer ring vent openings 112 to the central axis of the lower housing 110 is greater than the distance from the inner ring outlet openings 1112 to the central axis of the lower housing 110. In use, a portion of the air in the lower housing outer portion 120 flows as secondary air from the outer ring vent 112 to the burner 200 by the entrainment force, and since the outer ring vent 112 is spaced apart from the central axis of the lower housing 110 by a greater distance, the secondary air flowing toward the burner 200 through the outer ring vent 112 is more at the periphery of the burner 200 and thus flows toward the fire hole of the outer fire cover 220 by the entrainment force.
The inner ring air duct 111 and the outer ring ventilation opening 112 are arranged at intervals along the circumferential direction of the lower cover 110, when the inner ring air duct 111 is installed, the position of the inner ring air duct 111 can be aligned to a channel which is arranged in the combustor 200 and is communicated with the space between the inner fire cover 210 and the outer fire cover 220, and the outer ring ventilation opening 112 is aligned to the outer fire cover 220 or is aligned to a structure of the combustor 200 in which the outer fire cover 220 is installed.
As can be seen from the above, the present embodiment has at least the following effects:
first, the present embodiment distributes the secondary air by providing the outer ring ventilation opening 112 and the inner ring air duct 111 on the lower cover 110, and sends the secondary air to the fire hole of the inner fire cover 210 and the fire hole of the outer fire cover 220 in a targeted manner, thereby improving the combustion efficiency of the fuel.
Second, this embodiment is through setting up inner ring passageway and supplementing secondary air to interior fire lid 210, has guaranteed the demand of interior fire lid 210 burning to oxygen, has solved the incomplete condition of fuel burning that interior fire lid 210 sprays to the flue gas has been reduced, and the thermal efficiency has been promoted.
In this embodiment, the distance from the inner ring air inlet 1111 to the central axis of the lower housing 110 is greater than the distance from the outer ring air inlet 112 to the central axis of the lower housing 110; further reducing the effect of entrainment of secondary air by the outer ring flame generated by the outer fire cover 220 on the secondary air being replenished to the inner fire cover 210.
In this embodiment, the lower end of the lower cover 110 has two inner ring air ducts 111 and two outer ring ventilation openings 112, wherein the two inner ring air ducts 111 are symmetrical with respect to the central axis of the lower cover 110, and the two outer ring ventilation openings 112 are symmetrical with respect to the central axis of the lower cover 110, so that the multi-duct energy collecting cover 100 can not only better distribute the secondary air supplied to the inner fire cover 210 and the outer fire cover 220, but also more uniformly supply the secondary air to the inner fire cover 210 and the outer fire cover 220 from the periphery.
In this embodiment, the lower cover 110 includes an outer cover 113, an inner cover 114, and cover legs 115. The lower end of the outer cover 113 is connected to the lower end of the inner cover 114, which may be integrally formed or fixed together by an assembling process. The cover legs 115 are fixed to the outer cover 113 and/or the inner cover 114, and the cover legs 115, the outer cover 113 and the inner cover 114 may be integrally formed, or any two of them may be integrally formed and then fixed to another one by an assembling process.
The outer ring ventilation opening 112 is defined by two adjacent cover legs 115 and the lower end of the outer cover body 113, in other words, at the outer ring ventilation opening 112, the lower end of the outer cover body 113 is higher than the lower end faces of the two cover legs 115, and in the use process, secondary air can enter from the outer ring ventilation opening 112 under the action of entrainment force and then has a movement tendency of flowing upwards, so that the secondary air can be ensured to reach the root of the fire hole of the outer fire cover 220.
In this embodiment, the lower portion of the outer cover 113 is bent downward to form a curved shell portion 1132 and a wind control portion 1133 at two sides of the bending position 1131, and each wind control portion 1133 connects two cover legs 115, and forms the outer ring ventilation opening 112 with the two cover legs 115.
Specifically, the curved shell portion 1132 is located above the bending position 1131, an outer surface of the curved shell portion 1132 is a curved surface protruding outward, and the curved shell portion 1132 is ring-shaped, so that the secondary air is guided to stably flow downward, and the visual effect can be improved. The lower end of the curved shell portion 1132 has an opening for attachment of the cover leg 115.
The wind control portion 1133 is bent downward relative to the curved shell portion 1132, and has at least the following effects:
first, the air control part 1133 increases the intake resistance, and reduces the amount of secondary air supplied to the outer fire cover 220 compared to the prior art in which the total amount of secondary air supplied is controlled, thereby reducing the amount of smoke generated and the amount of heat taken away by the smoke by reducing the excess air.
Second, the air control portion 1133 controls the depth (or height) of the outer ring ventilation opening 112, the flow rate of the secondary air is increased, and the high flow rate is favorable for heat exchange, so that the air control portion 1133 enhances the preheating effect of the secondary air.
Third, during use, the air control portion 1133 allows the flow of secondary air to more closely adhere to the liquid containing tray 300, thereby reducing the temperature of the liquid containing tray 300 and further reducing the downward transmission of heat to the glass panel.
Fourth, in the using process, the overflowing liquid of the pot flows downwards along the outer cover body 113, and only falls downwards when flowing to the wind control part 1133, and does not flow towards the inner side of the lower cover 110 any more, so that the combustor 200 can be well prevented from being blocked due to the overflowing liquid flowing inwards.
In this embodiment, the lower cover 110 further includes an inner ring ventilation portion 116, the inner ring ventilation portion 116 is fixed to the lower end of the inner cover body 114 and the lower end of the lower cover 110, and the inner ring air duct 111 is formed in the inner ring ventilation portion 116. Wherein the inner ring ventilation part 116 is located between two adjacent cover legs 115, the shape of the inner ring ventilation part 116 may be various, such as a circular tube shape, a square tube shape, an irregular tube shape, etc.
In this embodiment, the lower end of the inner cover 114 and the lower end of the outer cover 113 each have a notch at a corresponding position, and the inner ring ventilation portion 116 is located at the notch. Indeed, in other embodiments, the inner shroud 114 and the lower shroud 110 between any two shroud legs 115 may alternatively be configured in the same configuration, with one portion serving as the outer annular vent 112 and the other portion providing the inner annular vent 116.
In this embodiment, the inner ventilation portion 116 includes an upper plate 1161, a lower plate 1162, and two side plates 1163, and the upper plate 1161, the lower plate 1162, and the two side plates 1163 enclose the inner annular air duct 111; the upper plate 1161 is fixed to the lower end of the outer housing 113 and the lower end of the inner housing 114.
Specifically, the upper plate 1161 and the lower plate 1162 are disposed to be opposed to each other in the vertical direction, the two side plates 1163 are disposed to be opposed to each other, and the two side plates 1163 are disposed to be spaced apart from each other in the circumferential direction of the lower cover 110. The distance between the two side plates 1163 is gradually reduced, that is, the distance between the two side plates 1163 is gradually reduced from the inner ring air inlet 1111 to the inner ring air outlet 1112, so that on one hand, the air inlet resistance is increased, the supplement amount of the secondary air is convenient to control, and the supplement amount is moderate; on the other hand, the contact area between the secondary air and the lower cover 110 is increased, the flow rate of the secondary air is increased, and the preheating effect is correspondingly improved.
In this embodiment, the lower plate 1162 includes a flat plate portion 1164 and a positioning portion 1165, a lower surface of the flat plate portion 1164 is not lower than a lower surface of the cover leg 115, one end of the positioning portion 1165 is connected to the flat plate portion 1164, the other end of the positioning portion 1165, the side plate 1163 and the upper plate 1161 form an inner ring air outlet 1112, and the positioning portion 1165 is higher than the flat plate portion 1164.
Specifically, when the liquid container is installed, the lower surface of the flat plate portion 1164 may be attached to the upper surface of the liquid containing tray 300 of the gas range 1000, so that the secondary air may be further attached to the liquid containing tray 300 when flowing to the burner 200 through the inner annular air duct 111, thereby taking away heat from the surface of the liquid containing tray 300 and facilitating preheating of the secondary air.
The positioning portion 1165 is disposed on the flat plate portion 1164 and is used for limiting the mutual position of the positioning portion and the air mixing chamber 230 of the combustor 200, so that the positional relationship between the multi-duct energy collecting cover 100 and the combustor 200 can be ensured, and the stability of the multi-duct energy collecting cover 100 can be improved. The shape of the positioning portion 1165 may match the shape of the air mixing chamber 230 so that the inner ring ventilation portion 116 can guide the secondary air toward the position of the inner fire cover 210 in conformity with the air mixing chamber 230. The positioning portion 1165 may include a vertical positioning section 1166, a first inclined section 1167, and a second inclined section 1168 connected in sequence, wherein the vertical positioning section 1166 connects the flat plate portion 1164 and abuts against an edge of the air mixing chamber 230, and a slope of the first inclined section 1167 is greater than a slope of the second inclined section 1168 to be attached to the air mixing chamber 230 and form moderate resistance to secondary air.
In this embodiment, the multi-duct shaped cover 100 further includes an upper cover 140, and the upper cover 140 includes an upper cover body 141 for reflecting heat radiation upward and a pot support 142 for supporting a pot. The upper cover main body 141 and the lower cover 110 are integrally formed or detachably connected, four mounting holes 1411 are formed in the upper cover main body 141 at intervals along the circumferential direction thereof for positioning the pot support legs 142, and the mounting holes 1411 are in one-to-one correspondence with the cover support legs 115. The pan supporting leg 142 passes through the mounting hole 1411 and is positioned on the upper cover main body 141, a mutual limit in the vertical direction is formed between the part of the pan supporting leg 142 protruding from the upper cover main body 141 and the upper cover main body 141, and in addition, the lower end of the pan supporting leg 142 can be fixed on the cover supporting leg 115 through a fastener.
Example 2
Please refer to fig. 6-9 for understanding the present embodiment. The embodiment of the invention also provides a gas stove which comprises the multi-air-channel energy gathering cover 100 in the embodiment 1.
The gas range 1000 further comprises a liquid containing disc 300, and the relationship between the liquid containing disc 300 and the multi-duct energy collecting cover 100 is the same as that of embodiment 1, and the embodiment is further described on the basis. The outer ring ventilation opening 112 is located on the upper surface of the liquid containing tray 300, specifically, a protrusion is formed between the wind control portion 1133 of the outer cover 113 and the upper surface of the liquid containing tray 300, so that the resistance of the secondary air at the outer ring ventilation opening 112 is increased, and the flow rate is increased. The flat plate portion 1164 of the inner ring ventilation portion 116 is attached to the liquid containing tray 300. The liquid containing tray 300 is provided with positioning grooves 310, and the cover legs 115 are positioned in the positioning grooves 310 in a one-to-one correspondence.
The gas stove 1000 further comprises a gas mixing chamber 230, and the structure of the gas mixing chamber 230 and the relationship between the gas mixing chamber 230 and the multi-duct energy collecting cover 100 are the same as those of embodiment 1, and the description thereof is omitted.
Specifically, the air mixing chamber 230 includes a disc 231, an inner ring air transmission column 232, and an outer ring air transmission column 233, wherein the disc 231 is attached to the surface of the positioning portion 1165 of the inner ring ventilation portion 116, the vertical positioning end is attached to the circumferential surface of the disc 231, and the first inclined surface section 1167 and the second attachment surface are both attached to the upward inclined surface of the disc 231. The positioning portion 1165 is attached to the tray 231, so that the stability of the multi-duct energy collecting cover 100 can be maintained.
The inner ring gas transmission column 232 is arranged in the central area of the disc body 231, the lower end of the inner ring gas transmission column is connected with the disc body 231, and the inner ring gas transmission column and the disc body can be integrally formed. The outer ring gas transmission column 233 is arranged around the inner ring gas transmission column 232, the lower end of the outer ring gas transmission column 233 is connected with the disc body 231, and the two can be integrally formed. Two outer ring air delivery columns 233 are arranged around the inner ring air delivery column 232, a gap is formed between each outer ring air delivery column 233 and the inner ring air delivery column 232, and the inner ring ventilation part 116 guides secondary air to flow into the gap between the inner ring air delivery column 232 and the outer ring air delivery column 233 by utilizing the space between the adjacent outer ring air delivery columns 233.
In this embodiment, the gas range 1000 further includes an inner fire cover 210 and an outer fire cover 220, and the relationship between the inner fire cover 210 and the outer fire cover 220 and the multi-duct energy collecting cover 100 is the same as that of embodiment 1, which is further supplemented by this embodiment.
The inner fire cover 210 is arranged at the upper end of the inner ring gas transmission column 232, the outer fire cover 220 covers and is fixed on the outer ring gas transmission column 233, the specific connection relation between the inner fire cover 210 and the inner ring gas transmission column 232 and the specific connection relation between the outer fire cover 220 and the outer ring gas transmission column 233 can be realized by adopting the prior art, and the details are not repeated here.
There is a gap between the outer fire cover 220 and the multi-duct energy concentrating cover 100 so that secondary air can be fed to the fire holes of the outer fire cover 220 through the outer annular ventilation opening 112.
A gap exists between the outer wall of the inner fire cover 210 and the inner wall of the outer fire cover 220, and the inner ring ventilation part 116 serves to supplement secondary air into the gap. The upper surface of the tray body 231, the side walls 2311 of the two adjacent outer ring gas transmission columns and the lower surface of the outer fire cover 220 are enclosed to form a gas transmission channel 240, the inner ring air outlet 1112 is attached to the inner wall of the gas transmission channel 240, specifically, at one end of the inner ring air outlet 1112, the positioning portion 1165 is attached to the tray body 231, the two side plates 1163 are attached to the side walls 2311 of the outer ring gas transmission columns in a one-to-one correspondence manner, and the upper surface of the upper plate 1161 is attached to the outer fire cover 220. The air delivery passage 240 further guides the secondary air introduced through the inner ring air duct 111 and allows the secondary air to be supplemented to the gap between the inner fire cover 210 and the outer fire cover 220.
In this embodiment, the air mixing chamber 230 has two outer ring air delivery columns 233 symmetrically arranged with respect to the central axis of the inner ring air delivery column 232, two air delivery channels 240 are formed between the two outer ring air delivery columns 233, the multi-duct energy collecting cover 100 has two inner ring air ducts 111, and the inner ring air ducts 111 and the air delivery channels 240 are arranged in one-to-one correspondence.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (13)
1. A multi-duct energy concentrating cover is characterized by comprising an annular lower cover, wherein the lower end of the lower cover is provided with:
the inner ring air duct is used for circulating secondary air between the outside of the lower cover and the inside of the lower cover, the inner ring air duct extends along the radial direction of the lower cover, and an inner ring air inlet and an inner ring air outlet are respectively arranged at two ends of the inner ring air duct; and the combination of (a) and (b),
the outer ring ventilation opening is used for circulating secondary air between the outside of the lower cover and the inside of the lower cover, and the distance from the outer ring ventilation opening to the central axis of the lower cover is greater than the distance from the inner ring air outlet to the central axis of the lower cover; the outer ring ventilation openings and the inner ring air duct are arranged at intervals along the circumferential direction of the lower cover.
2. The multi-duct energy concentrating cover according to claim 1, wherein the lower cover comprises an outer cover body, an inner cover body and cover legs, the lower end of the outer cover body is connected with the lower end of the inner cover body, and the cover legs are fixed to the outer cover body and/or the inner cover body; the outer ring ventilation opening is defined by two adjacent cover supporting legs and the lower end of the outer cover body.
3. The multi-duct energy concentrating cover of claim 2, wherein the lower portion of the outer cover body is bent downward to form a curved shell portion and a wind control portion respectively located at two sides of the bent position, and the wind control portion connects the two cover legs and encloses the outer ring ventilation opening with the two cover legs.
4. The multi-duct energy concentrating cover according to claim 2, wherein the lower cover further comprises an inner ring ventilation portion, the inner ring ventilation portion is fixed to a lower end of the inner cover body and a lower end of the lower cover body, and the inner ring ventilation portion forms the inner ring duct.
5. The multi-duct energy concentrating cover of claim 4, wherein the inner ring ventilation portion comprises an upper plate, a lower plate and two side plates, the upper plate, the lower plate and the two side plates enclosing the inner ring duct; the upper plate is fixed at the lower end of the outer cover body and the lower end of the inner cover body.
6. The multi-duct energy concentrating cover according to claim 5, wherein the two side plates of the inner ring ventilating part are oppositely arranged and are arranged at intervals along the circumferential direction of the lower cover; and the distance between the two side plates is gradually reduced from the inner ring air inlet to the inner ring air outlet.
7. The multi-duct energy concentrating cover according to claim 5, wherein the lower plate comprises a flat plate part and a positioning part, the lower surface of the flat plate part is not lower than the lower surfaces of the cover legs, one end of the positioning part is connected with the flat plate part, the other end of the positioning part, the side plate and the upper plate form the inner ring air outlet, and the positioning part is higher than the flat plate part.
8. The multi-duct concentrator cap of any one of claims 1-7,
the distance from the inner ring air inlet to the central axis of the lower cover is greater than the distance from the outer ring ventilation opening to the central axis of the lower cover;
and/or the lower end of the lower cover is provided with two inner ring air ducts and two outer ring ventilation openings, wherein the two inner ring air ducts are symmetrical relative to the central axis of the lower cover, and the two outer ring ventilation openings are symmetrical relative to the central axis of the lower cover.
9. The multi-duct energy concentrating cover of any one of claims 1-7, further comprising an upper cover including an upper cover body for reflecting heat radiation upwardly and pan legs, the upper cover body being integrally formed with or removably attached to the lower cover, the pan legs being positioned on the upper cover body and projecting from the upper cover body, the pan legs being spaced circumferentially of the upper cover body.
10. A gas burner comprising a multi-duct concentrator cap as claimed in any one of claims 1 to 9.
11. The gas range of claim 10, further comprising a gas mixing chamber, the gas mixing chamber comprising:
a tray body;
the inner ring gas transmission column is fixed in the center of the disc body; and
the lower end of the outer ring gas transmission column is fixed on the disk body, and the outer ring gas transmission columns are arranged around the inner ring gas transmission column at intervals;
and the inner ring air outlet of the inner ring air duct is positioned between the two outer ring air transmission columns.
12. The gas range of claim 11, further comprising an inner fire cover and an outer fire cover, wherein the inner fire cover is disposed at an upper end of the inner ring gas transmission column, the outer fire cover is disposed on the outer ring gas transmission column, a gap is formed between an outer wall of the inner fire cover and an inner portion of the outer fire cover, and a gap is formed between an outer wall of the outer fire cover and the multi-duct energy-gathering cover;
the upper surface of the tray body, the side walls of the two adjacent outer ring gas transmission columns and the lower surface of the outer fire cover enclose to form a gas transmission channel, and the inner ring air outlet is attached to the inner wall of the gas transmission channel.
13. The gas range of claim 12, wherein said gas mixing chamber has two of said outer ring gas-transferring columns symmetrically disposed with respect to a central axis of said inner ring gas-transferring column, two of said gas-transferring channels are formed between said two outer ring gas-transferring columns, said multi-duct energy-gathering cover has two of said inner ring ducts, and said inner ring ducts are in one-to-one correspondence with said gas-transferring channels.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010925527.0A CN111911927B (en) | 2020-09-04 | 2020-09-04 | Multi-air-channel energy-gathering cover and gas stove |
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| CN202010925527.0A CN111911927B (en) | 2020-09-04 | 2020-09-04 | Multi-air-channel energy-gathering cover and gas stove |
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| CN111911927B true CN111911927B (en) | 2021-12-24 |
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| CN114198776B (en) * | 2021-12-17 | 2023-09-12 | 佛山市顺德区美的洗涤电器制造有限公司 | Cooking utensil strutting arrangement and gas-cooker |
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| CN110006041A (en) * | 2019-04-17 | 2019-07-12 | 杭州德意电器股份有限公司 | A kind of high heat load high efficiency fuel gas stove tool burner |
| CN110425608A (en) * | 2018-05-01 | 2019-11-08 | 宁波方太厨具有限公司 | A kind of stove heat shield and application have the kitchen range of the stove heat shield |
| CN210107494U (en) * | 2019-04-17 | 2020-02-21 | 杭州德意电器股份有限公司 | Double-layer energy-gathering cover of gas cooker burner |
| CN111550830A (en) * | 2020-04-29 | 2020-08-18 | 宁波方太厨具有限公司 | Heat insulation cover for kitchen range |
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| CN110425608A (en) * | 2018-05-01 | 2019-11-08 | 宁波方太厨具有限公司 | A kind of stove heat shield and application have the kitchen range of the stove heat shield |
| CN110006041A (en) * | 2019-04-17 | 2019-07-12 | 杭州德意电器股份有限公司 | A kind of high heat load high efficiency fuel gas stove tool burner |
| CN210107494U (en) * | 2019-04-17 | 2020-02-21 | 杭州德意电器股份有限公司 | Double-layer energy-gathering cover of gas cooker burner |
| CN111550830A (en) * | 2020-04-29 | 2020-08-18 | 宁波方太厨具有限公司 | Heat insulation cover for kitchen range |
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