CN111550785B - Burner with a burner head - Google Patents
Burner with a burner head Download PDFInfo
- Publication number
- CN111550785B CN111550785B CN202010398583.3A CN202010398583A CN111550785B CN 111550785 B CN111550785 B CN 111550785B CN 202010398583 A CN202010398583 A CN 202010398583A CN 111550785 B CN111550785 B CN 111550785B
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- Prior art keywords
- valve plate
- burner
- air inlet
- mixing chamber
- gas
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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
- F23D14/02—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
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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
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
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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)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a burner, which is provided with a gas mixing chamber and a gas inlet pipeline, wherein the gas mixing chamber is communicated to the outside through the gas inlet pipeline, the burner is also provided with a valve plate, the valve plate is arranged in the gas inlet pipeline, and when the gas pressure of one side, facing the outside, of the valve plate is greater than the gas pressure of one side, deviating from the outside, of the valve plate, the valve plate can be matched with the gas inlet pipeline and reduce the size of a channel communicated with the outside through the gas mixing chamber. This combustor is through setting up the valve plate in the admission line to atmospheric pressure based on the valve plate both sides changes and makes the valve plate reduce admission line's passageway size, makes this combustor open the door and produce under the condition of negative pressure at the cupboard, communicates to external passageway size through reducing gas mixing chamber, slows down the speed that the negative pressure of suction was taken away the gas from gas mixing chamber in, and then has avoided the suction negative pressure to lead to the condition that the combustor extinguishes under the condition of small fire to take place.
Description
Technical Field
The invention relates to the field of gas cookers, in particular to a burner.
Background
For the gas cooker with downward air intake, the sudden flameout of the burner in the burning state generally has two reasons: suction effect generated when the cabinet door is opened or influence of external wind. How to avoid extinguishing the burner by suction force generated when opening a cabinet door under the condition of not influencing the normal work of the gas cooker is a key target of research and development of designers of the gas cooker.
Disclosure of Invention
The invention aims to solve the technical problem of flameout of a burner of a gas stove with lower air inlet in the prior art due to relative negative pressure generated by opening a cabinet, and provides the burner.
The invention solves the technical problems through the following technical scheme:
the utility model provides a combustor, its has gas mixing chamber and admission line, the gas mixing chamber communicates to the external world through the admission line, the combustor still has the valve plate, the valve plate set up in the admission line, when the atmospheric pressure of valve plate orientation external one side is less than the atmospheric pressure that the valve plate deviates from external one side, the valve plate can with admission line cooperation and reduction the gas mixing chamber communicates to external passageway size.
This combustor is through setting up the valve plate in the admission line to atmospheric pressure based on the valve plate both sides changes and makes the valve plate reduce admission line's passageway size, makes this combustor open the door and produce under the condition of relative negative pressure at the cupboard, communicates to external passageway size through reducing gas mixing chamber, slows down the speed that the negative pressure of suction was taken away the gas from gas mixing chamber in, and then has avoided the suction negative pressure to lead to the condition that the combustor suddenly extinguishes under the combustion conditions to take place.
Preferably, the burner comprises a mounting base, the valve plate is connected to the mounting base and can move along a linear direction relative to the mounting base, and the movement direction is set to facilitate the valve plate to rapidly change the size of the channel based on the air pressure change at two sides.
Preferably, the moving direction of the valve plate is the same as the extending direction of the pipeline of the air inlet pipeline, so that the quick response of the valve plate to the air pressure change is improved, and the size of a channel communicated from the air mixing chamber to the outside is changed through relative movement.
Preferably, the mounting seat is positioned in the air mixing chamber and is detachable relative to the air mixing chamber, so that the purpose of rapidly mounting and detaching the valve plate relative to the air mixing chamber is achieved.
Preferably, the mounting seat has a limit end for limiting the moving stroke of the valve plate, the mounting seat is provided with an elastic member, and the valve plate moves in a linear direction and is in contact with the limit end through the elastic member.
Through setting up the elastic component, at the valve plate according to the atmospheric pressure change of its both sides and relative movement's in-process, utilize the elastic component to cushion the removal of valve plate, avoid the valve plate to produce the abnormal sound with the spacing end collision of mount pad.
Preferably, the inner wall of the air inlet duct has an annular protrusion extending inward, and a channel communicating the air mixing chamber to the outside is formed between the periphery of the valve plate and the annular protrusion, so as to be matched with the valve plate through the annular protrusion, and the periphery of the valve plate is attached to the annular protrusion to seal the whole air inlet duct.
Preferably, the air inlet pipeline comprises an injection pipe, the valve plate is arranged between the injection pipe and the air mixing chamber, and the valve plate is arranged between the injection pipe and the air mixing chamber so as to prevent the gas in the air mixing chamber from being pumped to the outside through the injection pipe by relative negative pressure generated by opening the cabinet door.
Preferably, the valve plate is connected to the burner through a reset piece, and the reset piece is used for applying an acting force to the valve plate and expanding the size of a channel communicated from the air mixing chamber to the outside when the air pressure of one side, facing the outside, of the valve plate is larger than the air pressure of one side, facing away from the outside, of the valve plate.
Through this structure setting, under normal use operating mode, make the air can normally, smoothly get into the air mixing chamber through admission line.
Preferably, the air inlet pipeline comprises an injection pipe and an air inlet cover, the air inlet cover covers the air inlet end of the injection pipe, a first air inlet used for being communicated with the outside is formed in the surface of the air inlet cover, and the valve plate is arranged on the first air inlet and can move relative to the first air inlet.
Through setting up the valve plate on supplying air to get into the first air inlet that draws the ejector pipe to through the removal of the relative first air inlet of valve plate, change the passageway size that the external air got into the gas mixing chamber, thereby avoid the removal of valve plate to produce the influence to gas flow.
Preferably, the combustor still includes the gas nozzle, the spout setting of gas nozzle with in the cover of admitting air, the quantity of first air inlet is a plurality of, and is a plurality of first air inlet encircles the gas nozzle arranges to the setting of avoiding admitting air cover and first air inlet is drawn the pipe and is normally drawn and penetrate primary air and cause the hindrance.
Preferably, the valve plates and the first air inlets are the same in number and are arranged in a one-to-one correspondence with the first air inlets.
Preferably, the surface of the air inlet cover is provided with a second air inlet used for being communicated with the outside, and the valve plate is not arranged on the second air inlet.
Through setting up this second air inlet, make the passageway that the air inlet cover communicates to the external world can keep partly opening to under the unexpected circumstances such as card of valve plate, the condition that whole combustor became invalid because of the complete closure of the passageway that communicates to the external world takes place.
Preferably, when the air pressure of one side, facing the outside, of the valve plate is smaller than the air pressure of one side, facing away from the outside, of the valve plate, the valve plate can be matched with the air inlet pipeline and close a channel, communicated to the outside, of the air mixing chamber.
When the air pressure of the valve plate towards the outside side is smaller than that of the other side, the valve plate moves relative to the air inlet pipeline and completely seals the channel which is communicated with the outside of the air mixing chamber, so that the condition that gas is pumped out from the air mixing chamber by relative negative pressure generated when the cabinet door is opened is thoroughly avoided, and the condition that the combustor is flameout when the cabinet door is opened is thoroughly avoided.
The positive progress effects of the invention are as follows:
this combustor is through setting up the valve plate in the admission line to atmospheric pressure based on the valve plate both sides changes and makes the valve plate reduce admission line's passageway size, makes this combustor open the door and produce under the condition of relative negative pressure at the cupboard, communicates to external passageway size through reducing gas mixing chamber, slows down the speed that the negative pressure of suction was taken away the gas from gas mixing chamber in, and then has avoided the suction negative pressure to lead to the condition that the combustor suddenly extinguishes under the combustion conditions to take place.
Drawings
Fig. 1 is a schematic view of the overall structure of a burner according to embodiment 1 of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic view showing a moving state of the valve plate according to embodiment 1 of the present invention.
Fig. 4 is a schematic combination view of a valve plate and a mount in embodiment 1 of the present invention.
Fig. 5 is a schematic structural view of another arrangement of the valve plate according to embodiment 1 of the present invention.
Fig. 6 is a schematic view showing a moving state of the valve plate according to embodiment 2 of the present invention.
Fig. 7 is a partial structural view of a burner of embodiment 2 of the present invention.
Fig. 8 is a schematic structural view of another arrangement of the valve plate according to embodiment 2 of the present invention.
Fig. 9 is a schematic view of the overall structure of a burner of embodiment 3 of the present invention.
Fig. 10 is a partially enlarged view of a portion B in fig. 9.
Fig. 11 is a schematic view showing a moving state of the valve plate according to embodiment 3 of the present invention.
Fig. 12 is a schematic structural view of an intake hood at a first intake port according to embodiment 3 of the present invention.
Fig. 13 is a partial structural view of a burner according to embodiment 4 of the present invention.
Description of reference numerals:
fire lid 1
An injection pipe 3, an air outlet end 3a and an air inlet end 3b
Valve plate 4
Accommodating hole 43
Limiting end 61
Second air inlet 82
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the present invention provides a burner, which has a fire cover 1, a gas mixing chamber 2 and an air inlet pipeline, wherein the air inlet pipeline includes an injection pipe 3 and a nozzle (not shown in the figure) in this embodiment, the nozzle injects fuel gas to an air inlet end 3b of the injection pipe 3 to entrain air around the air inlet end 3b to enter the injection pipe 3, the fuel gas and the air are mixed in the injection pipe 3 and flow into the gas mixing chamber 2, and then flow out through fire holes on the surface of the fire cover 1 and combust, so as to achieve the purpose of heating a pot.
This combustor still has valve plate 4, and this valve plate 4 sets up the end 3a position department of giving vent to anger of drawing tub 3, and valve plate 4 can move along the arrow direction in fig. 2 for drawing the end 3a of giving vent to anger of drawing tub 3 to change the periphery 42 of valve plate 4 and draw the play size between the end 3a of giving vent to anger of drawing tub 3, and then change from nozzle one side through drawing the passageway size that penetrates tub 3 entering gas mixing chamber 2, also promptly: the air mixing chamber is communicated with the outside through a passage.
In this embodiment, when the cabinet door is opened, the instantaneous relative negative pressure generated by the outside relative to the air mixing chamber 2 causes the air pressure of the injection pipe 3 communicated to the outside to be smaller than the air pressure inside the air mixing chamber 2, in this case, the gas in the air mixing chamber 2 is pumped out from the gas outlet end 3a of the injection pipe 3 in the opposite direction, at this time, the valve plate 4 is driven by the air flow to move towards the direction close to the gas outlet end 3a of the injection pipe 3, so as to reduce the size of the passage through which the air mixing chamber 2 is communicated to the outside, and further slow down the speed at which the sucked negative pressure pumps the gas out from the air mixing chamber 2, so as to overcome the relative negative pressure state generated by the opening of the cabinet door, and avoid the situation that the sucked negative pressure causes the burner to be suddenly extinguished under the combustion condition.
As shown in fig. 1 and 2, the burner further comprises a mounting seat 6, and the valve plate 4 is mounted and positioned in the mounting seat 6 through a straight rod 41 at the tail end so as to achieve the purposes of relative movement and changing the size of the passage. In this embodiment, the valve plate 4 is moved in a linear direction, and the movement direction is set so that the valve plate 4 can change the size of the passage quickly based on the air pressure change on both sides. As shown in fig. 2, the moving direction of the valve plate 4 is consistent with the pipeline extending direction of the air inlet pipeline, that is, the gas flowing direction, so that the valve plate 4 can quickly respond to the air pressure change.
Of course, in other embodiments, the movement form of the valve plate 4 may be a non-linear movement form such as turning along a single side, or rotating along a certain central point, and the above-mentioned harmonious movement form can also make the valve plate 4 cooperate with the air intake duct and change the size of the passage through which the air mixing chamber 2 communicates with the outside. At the same time, the direction of movement of the valve plate 4 may not coincide with the direction of extension of the duct of the inlet duct.
As shown in fig. 2 and 3, the straight rod 41 of the valve plate 4 penetrates through the inside of the upper end of the mounting seat 6, the straight rod 41 has a protruding portion 41a protruding outwards in the mounting seat 6, and the protruding portion 41a is matched with the limiting ends 61 on the left and right sides of the mounting seat 6, so as to achieve the purpose that the mounting seat 6 limits the moving stroke of the valve plate 4.
On this basis, an elastic member 7, specifically a coil spring, is disposed between the limiting end 61 and the protruding portion 41a of the valve plate 4, and when the valve plate 4 moves along the linear direction, the protruding portion 41a contacts with the limiting end 61 of the mounting seat 6 through the elastic member 7, so that the elastic member 7 can buffer the movement of the valve plate 4 in the process of relative movement of the valve plate 4 according to the air pressure change at both sides of the valve plate, and the protruding portion 41a and the limiting end 61 of the mounting seat 6 are prevented from generating abnormal sound due to collision.
Meanwhile, the coil spring has a characteristic that, when compressed, the reaction force output from the coil spring gradually increases as the degree of compression increases. In this embodiment, when the valve plate 4 moves in a certain direction and compresses the coil spring at the corresponding position, the reaction force applied by the coil spring to the valve plate 4 keeps dynamic balance with the force generated by the air pressure change at the two sides of the valve plate 4, so that the valve plate 4 stops at a certain position, the size of the passage communicating with the outside of the air mixing chamber 2 is gradually adjusted along with the air pressure change at the two sides of the valve plate 4, rather than only stopping at the limit positions at the two ends of the mounting seat 6, so that the size of the passage can be gradually changed along with the air pressure change, and the air mixing chamber 3 is in a proper state under different gas pressures.
In this embodiment, as shown in fig. 4, the movable components such as the valve plate 4 are mounted on the upper end portion 6b of the mounting seat 6, the lower end portion 6a of the mounting seat 6 is shaped like a disk and is matched with the channel shape of the gas mixing chamber 2, and the movable components such as the valve plate 4 and the elastic piece 7 are mounted and positioned at the bottom of the gas mixing chamber 2 in a vertically downward placing manner, so that the movable components such as the valve plate 4 and the elastic piece 7 are quickly positioned and mounted relative to the gas mixing chamber 2 and the air inlet pipeline. When the valve plate 4 needs to be taken out from the air mixing chamber 2, the whole mounting seat 6 only needs to be taken out along the vertical upward direction.
Of course, the valve plate 4 may not be reciprocally moved in the horizontal direction, as shown in fig. 5, which provides another arrangement of the valve plate 4. The valve plate 4 can move reciprocally in the vertical direction by varying the cross-sectional dimension of the gap formed by the peripheral edge 42 with respect to the intake duct, so as to adjust the size of the passage through which the chamber 2 communicates with the outside. As can be seen from fig. 5, the air inlet duct located on the peripheral side of the valve plate 4 is tapered from top to bottom, so that the vertical movement of the valve plate 4 relative to the air inlet duct can change the cross-sectional dimension of the gap.
Example 2
The present embodiment also provides a burner whose structure and principle are substantially the same as those of the burner provided in embodiment 1, except that in this embodiment, as shown in fig. 6, only the right-side stopper 61 is provided on the upper end portion of the mounting base 6, as compared with embodiment 1, to restrict the movement of the valve plate 4 in the direction away from the intake duct.
In the case where the valve plate 4 moves in the direction close to the intake duct, the mount 6 does not provide any limit thereto. Therefore, when the air pressure of the valve plate 4 towards the outside is smaller than the air pressure of the valve plate 4 away from the outside, that is, when the cabinet door is opened and the like to draw out the fuel gas in the air mixing chamber 2, the valve plate 4 can move towards the direction of the air inlet pipeline until the valve plate is attached to the inner wall of the air inlet pipeline and stops, so that the passage of the air mixing chamber 2 communicated to the outside is completely sealed through the relative matching of the valve plate 4 and the air inlet pipeline.
When the air pressure of the valve plate 4 towards the outside side is smaller than that of the other side, the valve plate 4 moves relative to the air inlet pipeline and completely seals the channel communicated to the outside from the air mixing chamber 2, so that the condition that gas is pumped out from the air mixing chamber 2 by suction negative pressure generated when the cabinet door is opened is completely avoided, and the condition that the combustor is flameout when the cabinet door is opened is further completely avoided.
Specifically, as shown in fig. 7, the inner wall of the air inlet duct has an annular protrusion 31 extending inward, the annular protrusion 31 is formed at the air outlet end 3a of the ejector pipe 3, an air inlet passage for communicating the air mixing chamber 2 with the outside is formed between the circumferential edge 42 of the valve plate 4 and the annular protrusion 31, when the valve plate 4 moves toward the air inlet duct, the circumferential edge 42 of the valve plate 4 contacts the annular protrusion 31 of the air inlet duct and stops moving, so that the whole air inlet duct is closed by the valve plate 4, the gas in the air mixing chamber 2 is prevented from being extracted by the relative negative pressure generated by the cabinet opening, and the burner does not have any possibility of extinguishing the flame even in a small fire state.
Of course, the valve plate 4 may not be reciprocally moved in the horizontal direction, as shown in fig. 8, which provides another arrangement of the valve plate 4. The valve plate 4 can be reciprocally moved in the vertical direction and moved down into contact with the annular projection 31 to close the passage of the air-mixing chamber 2 to the outside through the intake duct.
Example 3
The present embodiment further provides a burner, the structure and principle of which are substantially the same as those of the burner provided in embodiment 2, except that in the present embodiment, the valve plate 4 is disposed at the air inlet end 3b of the ejector tube 3, specifically, as shown in fig. 9 and 10, an air inlet cover 8 is disposed at the air inlet end 3b of the ejector tube 3, the air inlet cover 8 covers the whole air inlet end 3b, the nozzle 5 is also disposed in the air inlet cover 8, and the primary air must enter the air inlet cover 8 through a first air inlet 81 formed in the air inlet cover 8.
As shown in fig. 10, the valve plate 4 is disposed inside the first intake port 81 and is movable up and down with respect to the first intake port 81. When the nozzle 5 starts to work to inject the air around the air inlet end 3b of the injection pipe 3, the air pressure inside the valve plate 4 is relatively large, the valve plate 4 moves towards the direction far away from the first air inlet 81, so that the external primary air enters the channel of the injection pipe 3 to be enlarged, when the cabinet door is opened, the air pressure outside the valve plate 4 is relatively large, the valve plate 4 moves towards the direction close to the first air inlet 81, so that the external primary air enters the channel of the injection pipe 3 to be enlarged, the speed of pumping the air from the air mixing chamber 2 and the injection pipe 3 to the outside is reduced by the negative pressure of pumping, and the condition that the burner is suddenly extinguished due to the negative pressure of pumping is avoided.
Through setting up valve plate 4 on supplying air to get into the first air inlet 81 that draws ejector tube 3 to through the removal of valve plate 4 relative first air inlet 81, change the passageway size that the outside air got into gas mixing chamber 2. Compared with the solutions of the embodiment 1 and the embodiment 2, the valve plate 4 in the embodiment moves without any obstruction to the flow of the fuel gas ejected from the nozzle 5.
In this embodiment, as shown in fig. 11, the valve plate 4 can move toward the direction close to the first air inlet 81 until the valve plate is attached to the first air inlet 81, so that the passage through which the air mixing chamber 2 communicates with the outside is completely closed by the attachment of the valve plate and the first air inlet 81.
In addition, the valve plate 4 is connected to the inner side surface of the air intake cover 8 through the reset piece 9, and the reset piece 9 is used for applying a moving acting force to the valve plate 4 in a direction away from the outside to drive the valve plate 4 to move in a direction away from the first air intake port 81, so that after the negative pressure generated by opening the cabinet door is over, the valve plate 4 is opened relative to the first air intake port 81 through the acting force of the reset piece 9, and the reliability is improved.
In this embodiment, the restoring member 9 is a coil spring, specifically, a compression spring. As shown in fig. 12, the valve plate 4 has a receiving hole 43 for receiving the restoring member 9 on a side thereof facing the first intake port 81, and a tip end of the restoring member 9 is connected to a bottom of the receiving hole 43.
In other embodiments, the number of the first air inlets 81 arranged on the air inlet cover 8 may be multiple, and the first air inlets 81 are arranged around the gas nozzle 5, so that the primary air can enter the air inlet cover 8 from all positions of the air inlet cover 8, and the arrangement of the air inlet cover 8 and the first air inlets 81 is prevented from causing obstruction to the normal injection of the primary air by the injection pipe 3. Of course, each first air inlet 81 is correspondingly provided with a valve plate 4, so that the valve plates 4 arranged in pairs move relative to the first air inlet 81 to change the size of a channel communicated from the air mixing chamber 2 to the outside.
Example 4
The present embodiment further provides a burner, which has substantially the same structure and principle as the burner provided in embodiment 3, except that in the present embodiment, the intake cover 8 is further provided with a second intake port 82.
As shown in fig. 13, the second air inlet 82 is disposed above the air intake cover 8 with respect to the first air inlet 81, and the valve plate 4 is not disposed on the second air inlet 82, that is, the second air inlet 82 is kept normally open, so that the primary air can still enter the air intake cover 8 from the second air inlet 82 in the direction indicated by the arrow in fig. 11 during the process of moving the valve plate 4 with respect to the first air inlet 81 and narrowing or closing the passage of the primary air into the air intake cover 8 through the first air inlet 81.
By arranging the second air inlet 82, the passage of the air inlet cover 8 communicated to the outside can be kept partially opened, so that the condition that the whole combustor fails due to the fact that the passage communicated to the outside is completely closed under the condition that the valve plate 4 is accidentally stuck and the like is avoided.
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 (12)
1. The utility model provides a combustor, its has gas mixing chamber and admission line, the gas mixing chamber communicates to the external world through the admission line, its characterized in that, the combustor still has the valve plate, the valve plate set up in the admission line, when the atmospheric pressure of valve plate orientation external one side is less than the atmospheric pressure that the valve plate deviates from external one side, the valve plate can be relative admission line removes and reduces the gas mixing chamber communicates to external passageway size, when the atmospheric pressure of valve plate orientation external one side is less than the atmospheric pressure that the valve plate deviates from external one side, the valve plate can be relative the admission line removes and seals the gas mixing chamber communicates to external passageway.
2. The burner of claim 1, wherein the burner includes a mount, and the valve plate is coupled to the mount and is movable in a linear direction relative to the mount.
3. A burner as claimed in claim 2, characterised in that the valve plate moves in the same direction as the duct extension of the inlet duct.
4. The burner of claim 2, wherein the mounting block is positioned within and removable from the gas mixing chamber.
5. The burner as claimed in claim 2, wherein the mount base has a stopper end for limiting a moving stroke of the valve plate, the mount base being provided with an elastic member, the valve plate moving in a linear direction and contacting the stopper end through the elastic member.
6. The burner as claimed in claim 1, wherein the inner wall of the air intake duct has an annular protrusion extending inwardly, and a passage for communicating the air mixing chamber to the outside is formed between the circumferential edge of the valve plate and the annular protrusion.
7. The burner of claim 1, wherein the air inlet conduit includes an ejector tube, and the valve plate is disposed between the ejector tube and the plenum.
8. The burner of claim 1, wherein the valve plate is coupled to the burner by a reset element for applying a force to the valve plate and enlarging a size of a passage through which the gas mixing chamber communicates to the outside when a pressure of the gas at a side of the valve plate facing the outside is greater than a pressure of the gas at a side of the valve plate facing away from the outside.
9. The burner of claim 1, wherein the air inlet pipeline comprises an ejector pipe and an air inlet cover, the air inlet cover covers the air inlet end of the ejector pipe, a first air inlet used for being communicated with the outside is formed in the surface of the air inlet cover, and the valve plate is arranged on the first air inlet and can move relative to the first air inlet.
10. The burner of claim 9, further comprising a gas nozzle having an exit opening disposed within the inlet cowl, wherein the number of the first gas inlets is plural, and wherein the plurality of first gas inlets are arranged around the gas nozzle.
11. The burner of claim 10, wherein the valve plates are equal in number to the first inlet ports and are disposed in one-to-one correspondence with respect to the first inlet ports.
12. The burner of claim 9, wherein the surface of the inlet cowl has a second inlet port for communication with the outside, and the valve plate is not provided to the second inlet port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398583.3A CN111550785B (en) | 2020-05-12 | 2020-05-12 | Burner with a burner head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398583.3A CN111550785B (en) | 2020-05-12 | 2020-05-12 | Burner with a burner head |
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| Publication Number | Publication Date |
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| CN111550785A CN111550785A (en) | 2020-08-18 |
| CN111550785B true CN111550785B (en) | 2022-02-08 |
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| CN202010398583.3A Active CN111550785B (en) | 2020-05-12 | 2020-05-12 | Burner with a burner head |
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| CN101900324B (en) * | 2010-07-23 | 2011-08-10 | 重庆大学 | Atmospheric gas radiation heating device |
| CN204201968U (en) * | 2014-10-14 | 2015-03-11 | 宁波方太厨具有限公司 | A kind of chassis of gas kitchen ranges |
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| WO1995027174A1 (en) * | 1994-03-30 | 1995-10-12 | Port-O-Kiln (Aust) Pty. Ltd. | Burner with primary air flow control gate |
| CN102207288A (en) * | 2010-03-30 | 2011-10-05 | 通用电气公司 | Variable area fuel nozzle |
| CN206310492U (en) * | 2016-12-29 | 2017-07-07 | 宁波方太厨具有限公司 | A kind of burner |
| CN210107388U (en) * | 2019-01-15 | 2020-02-21 | 芜湖美的厨卫电器制造有限公司 | Venturi premixer and combustion apparatus |
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