CN217763413U - Upper air inlet burner and gas stove - Google Patents

Abstract

The application discloses go up air inlet burner and gas cooking utensils, it includes to go up air inlet burner: the flame thrower is provided with a mixed air cavity and a secondary air supplementing port; a nozzle holder; the ejector pipe is communicated with the gas mixing cavity and the nozzle seat, and a primary air inlet is arranged between the ejector pipe and the nozzle seat; and the partition plate is arranged on the lateral outer side surface of the flame thrower and is arranged between the secondary air supplementing port and the primary air inlet. The last air intake burner of above-mentioned embodiment, set up the division board through the side at the sparker and hide the nozzle holder in the below of this division board, make the nozzle holder keep away from sparker and center as far as possible and lie in the below of division board, the length that makes the intercommunication mix the gas chamber draw the ejector tube is not restricted by sparker size, draw the length of penetrating the pipe in order to prolong, thereby promote the volume of drawing penetrating pipe primary air, and then promote the primary air coefficient, and make primary air and gas premix more completely, make the combustion performance of going up the air intake burner obtain further promotion.

Description

Upper air inlet burner and gas stove

Technical Field

The application belongs to the technical field of cooking utensil, especially relates to an upward air inlet burner and gas cooking utensils.

Background

In the related art, the nozzle holder of the upper intake burner is usually disposed under the air distributor plate for aesthetic reasons. However, the length of the injection pipe is limited due to the size of the gas distribution plate, the injection amount of primary air is small, and the combustion performance of the upper air inlet combustor is difficult to guarantee.

Disclosure of Invention

This application aims at solving at least to a certain extent because the upper air inlet burner draw the restricted primary air that leads to of ejector tube length to draw and penetrate the technical problem that the volume is few. Therefore, the application provides an upper air inlet burner and a gas stove.

The utility model provides an upper air inlet burner, upper air inlet burner includes:

the flame thrower is provided with a mixed air cavity and a secondary air supplementing port;

a nozzle holder;

the injection pipe is communicated with the gas mixing cavity and the nozzle seat, and a primary air inlet is arranged between the injection pipe and the nozzle seat; and the partition plate is arranged on the lateral outer side surface of the flame thrower and is arranged between the secondary air supplementing port and the primary air inlet.

In some embodiments, the upper intake burner further comprises:

gather can the dish, the cover is established on the flame thrower, and in secondary air tonifying qi mouth with between the division board, gather can the dish with first clearance has between the flame thrower, gather can the dish with the second clearance has between the division board.

In some embodiments, the divider plate is in a projected area of the energy concentrating disk.

In some embodiments, the torch comprises:

the outer ring flame thrower is provided with an outer ring mixed gas cavity; and the combination of (a) and (b),

the inner ring flame thrower is coaxially arranged with the outer ring flame thrower and is provided with an inner ring gas mixing cavity;

the nozzle holder includes:

an outer ring nozzle holder and an inner ring nozzle holder;

the injection pipe comprises:

the outer ring injection pipe is communicated with the outer ring gas mixing cavity and the outer ring nozzle seat; and (c) and (d),

and the inner ring injection pipe is communicated with the inner ring gas mixing cavity and the inner ring nozzle seat.

In some embodiments, the outer ring flame thrower comprises an outer ring gas distribution plate and an outer ring fire cover arranged on the outer ring gas distribution plate, wherein an outer ring fire hole is formed in the outer ring gas distribution plate or the outer ring fire cover;

the inner ring flame thrower comprises an inner ring gas distribution disc and an inner ring flame cover arranged on the inner ring gas distribution disc, and the inner ring gas distribution disc or the inner ring flame cover is provided with an inner ring flame hole.

In some embodiments, the secondary air supply port is located around the outer fire cover.

In some embodiments, there is a secondary air passage between the outer ring torch and the inner ring torch.

In some embodiments, the upper intake burner further comprises:

and the flow guide piece is fixed on the outer ring flame thrower and is positioned between the outer ring flame thrower and the inner ring flame thrower so as to enable the air outlet of the secondary air channel to face towards the inner ring flame thrower.

In some embodiments, the deflector includes a cover plate portion that is fixed to the outer ring burner and extends toward the inner ring burner, with an air outlet of the secondary air passage being formed between the cover plate portion and the outer ring burner.

In some embodiments, the deflector further comprises a fitting portion connected to the cover plate portion, the fitting portion fitting to the outer ring burner.

In some embodiments, the flow guide member further includes a flow guide portion connected to the cover portion and the attachment portion, and the flow guide portion has an arc-shaped flow guide surface extending in a direction of an air outlet of the secondary air passage.

In some embodiments, the gap between the arc-shaped flow guide surface and the inner ring burner is gradually reduced toward the air outlet of the secondary air passage.

In some embodiments, the deflector is of unitary construction with the outer annular fire cap.

In some embodiments, the deflector is fixed to the outer fire cover or the outer distributor disc by a connecting element.

In some embodiments, the outer annular air distributor plate has a gap between it and the face plate, the gap communicating with the secondary air passage.

An application embodiment also provides a gas cooker, which comprises the upper air inlet burner and a panel, wherein the upper air inlet burner is arranged on the panel.

The embodiment of the application has at least the following beneficial effects:

the last air intake burner of above-mentioned embodiment, set up the division board through the side at the sparker and hide the nozzle holder in the below of this division board, make the nozzle holder keep away from sparker and center as far as possible and lie in the below of division board, the length that makes the intercommunication mix the gas chamber draw the ejector tube is not restricted by sparker size, draw the length of penetrating the pipe in order to prolong, thereby promote the volume of drawing penetrating pipe primary air, and then promote the primary air coefficient, and make primary air and gas premix more completely, make the combustion performance of going up the air intake burner obtain further promotion.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic perspective view of an upper intake air burner according to an embodiment of the present disclosure;

FIG. 2 shows a schematic perspective view of another angle of the upper intake burner of FIG. 1;

FIG. 3 shows a front view of the upper intake burner of FIG. 1;

FIG. 4 shows a left side view of the upper intake burner of FIG. 1;

FIG. 5 shows a top view of the upper intake burner of FIG. 1;

FIG. 6 showsbase:Sub>A cross-sectional view A-A of the upper intake burner of FIG. 5;

fig. 7 shows a sectional view of the upper inlet wind burner of fig. 5 taken along the line B-B.

Reference numerals:

100. a flame thrower; 110. an outer ring flame thrower; 111. an outer ring air mixing cavity; 112. an outer ring gas distribution plate; 113. an outer ring fire cover; 114. An outer ring fire hole; 120. an inner ring flame thrower; 121. an inner ring air mixing cavity; 122. an inner ring gas distribution plate; 123. an inner ring fire cover; 124. An inner ring fire hole; 200. a partition plate; 300. a nozzle holder; 310. an outer ring nozzle holder; 320. an inner ring nozzle holder; 400. an injection pipe; 410. an outer ring ejector tube; 420. an inner ring injection pipe; 500. an energy-gathering disk; 510. a first gap; 520. a second gap; 600. A secondary air passage; 610. an air outlet of the secondary air passage; 620. a flow guide member; 621. a cover plate portion; 622. a bonding section; 623. A flow guide part.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The application is described below with reference to specific embodiments in conjunction with the following drawings:

in the related art, the nozzle holder 300 of the upper intake burner is generally disposed under the air distributor plate for aesthetic reasons. However, the length of the injection pipe 400 is limited due to the size of the gas distribution plate, the injection amount of primary air is small, and the combustion performance of the upper air inlet combustor is difficult to guarantee. In order to improve the ejection volume of primary air to make primary air and gas can the intensive mixing, the first big aspect of this application provides an upper air inlet burner.

A first broad aspect of the present application provides an upper intake air burner, as shown in fig. 1 to 7, of an embodiment, comprising:

the flame thrower 100 is provided with a mixed air cavity and a secondary air supplementing port;

a nozzle holder 300;

the ejector pipe 400 is communicated with the air mixing cavity and the nozzle holder 300, and a primary air inlet is formed between the ejector pipe 400 and the nozzle holder 300; and a partition plate 200 disposed at an outer side surface of the torch 100 and between the secondary air supply port and the primary air intake port.

The utility model provides an upper air inlet burner, set up division board 200 and hide nozzle holder 300 in the below of this division board 200 through the side at flame thrower 100, make nozzle holder 300 keep away from flame thrower 100 and center as far as possible and lie in the below of division board 200, the length that makes the ejector tube 400 of intercommunication gas mixing chamber does not receive the restriction of flame thrower 100 size, with the length that the extension jetted pipe 400, thereby promote the injection volume of ejecting pipe 400 primary air, and then promote the primary air coefficient, and it is more complete to make primary air and gas premix, make upper air burner's combustion performance obtain further promotion.

Furthermore, because the last air inlet mode is all adopted to the last air and the secondary air of going up air inlet combustor of this application, the problem of robbing gas appears in order to avoid primary air and secondary air. In this embodiment, the secondary air supplement of the torch 100 is directly supplemented through the periphery of the outer ring fire cover 113, that is, the secondary air supplement source of the torch 100 is an annular region near the fire cover and the gas distribution plate, and the region can be separated from a region near the nozzle holder 300 by arranging the partition plate 200 so as to divide primary air and secondary air, thereby avoiding the influence on the secondary air supplement of the outer ring torch 110 due to the introduction of the primary air by the outer ring ejector pipe 410 and the inner ring ejector pipe 420.

As an alternative embodiment, as shown in fig. 1 and 5, the upper intake burner of the present embodiment further includes:

the energy-gathering disk 500 is sleeved on the flame thrower 100 and is arranged between the secondary air supplementing opening partition plates 200, a first gap 510 is arranged between the energy-gathering disk 500 and the flame thrower 100, and a second gap 520 is arranged between the energy-gathering disk 500 and the partition plates 200. In this embodiment, the energy collecting plate 500 is sleeved on the flame thrower 100, is positioned above the partition plate 200 and below the secondary air supply port,

a first gap 510 is provided between the energy concentrating disk 500 and the torch 100, and a second gap 520 is provided between the energy concentrating disk 500 and the partition plate 200. The energy collecting disc 500 is an annular member and is sleeved on the flame thrower 100 to improve the thermal efficiency of the upper intake burner. Further, the air outside the energy collecting disc 500 can sequentially enter the fire hole of the torch 100 through the second gap 520 and the first gap 510, that is, a secondary air supply passage to the torch 100 is formed through the second gap 520 and the first gap 510, so as to supply secondary air to the torch 100. And because the partition plate 200 is arranged, the secondary air supplementing channel can be separated from the nozzle seat 300 positioned below the partition plate 200, so that the problem of air robbery of primary air/secondary air is avoided.

As an alternative embodiment, as shown in fig. 5 and fig. 6, the partition plate 200 of this embodiment may be completely hidden under the energy collecting disc 500 in the projected area of the energy collecting disc 500, so as to extend the ejector tube 400 further and avoid the nozzle holder 300 from being exposed.

As an alternative embodiment, as shown in fig. 5 and 6, the upper intake burner of the present embodiment is a double-ring upper intake burner, and the torch 100 of the present embodiment includes an outer ring torch 110 and an inner ring torch 120, the corresponding outer ring torch 110 has an outer ring air mixing chamber 111, and the inner ring torch 120 has an inner ring air mixing chamber 121; correspondingly, the nozzle holder 300 comprises an outer ring nozzle holder 310 and an inner ring nozzle holder 320, the ejector pipe 400 comprises an outer ring ejector pipe 410 and an inner ring ejector pipe 420, and the outer ring ejector pipe 410 is communicated with the outer ring air mixing cavity 111 and the outer ring nozzle holder 310, and the inner ring ejector pipe 420 is communicated with the inner ring air mixing cavity 121 and the inner ring nozzle holder 320.

As shown in fig. 1 and 5, the upper air inlet burner according to the present embodiment includes an outer ring burner 110, an outer ring nozzle holder 310, an outer ring ejector pipe 410, an inner ring burner 120, an inner ring nozzle holder 320, and an inner ring ejector pipe 420. Wherein, the outer ring flame thrower 110 and the inner ring flame thrower 120 are nested, the outer ring flame thrower 110 is annular as a whole, and the inner ring flame thrower 120 and the outer ring flame thrower 110 are coaxially arranged in the center of the outer ring flame thrower 110. The outer ring flame thrower 110 has an outer ring air mixing chamber 111, the outer ring ejector tube 410 communicates the outer ring nozzle holder 310 and the outer ring air mixing chamber 111, primary air is introduced through the outer ring ejector tube 410 to be mixed with fuel gas in the outer ring ejector tube 410 in the outer ring air mixing chamber 111, and then the fuel gas is combusted through the outer ring flame thrower 110. The inner ring burner 120 has an inner ring air mixing chamber 121, the inner ring ejector pipe 420 communicates the inner ring nozzle holder 320 and the inner ring air mixing chamber 121, and primary air is introduced through the inner ring ejector pipe 420 to be mixed with fuel gas in the inner ring ejector pipe 420 in the inner ring air mixing chamber 121.

In this embodiment, the partition plate 200 is disposed on the side surface of the outer ring burner 110, and the upper inlet burner is extended toward the periphery of the outer ring burner 110 by the partition plate 200, so that the outer ring nozzle holder 310 and the inner ring nozzle holder 320 can be hidden under the partition plate 200, which not only can meet the requirement of the upper inlet burner on aesthetic appearance, but also can extend the outer ring ejector tube 410 and the inner ring ejector tube 420, so that the outer ring nozzle holder 310 and the inner ring nozzle holder 320 are as far away from the centers of the outer ring burner 110 and the inner ring burner 120 as possible and are located under the partition plate 200, so that the lengths of the outer ring ejector tube 410 communicating the outer ring air mixing chamber 111 with the outer ring nozzle holder 310 and the inner ring ejector tube 420 communicating the inner ring air mixing chamber 121 with the inner ring nozzle holder 320 are not limited by the size of the outer ring burner 110, so as to extend the lengths of the outer ring ejector tube 410 and the inner ring ejector tube 420, thereby increasing the introduction amount of primary air through the ejector tube 410 and the inner ring ejector tube 420, further increasing the primary air coefficient, and further improving the performance of the premixed combustion of the outer ring burner.

In the embodiment of the present application, the upper air inlet burner of the present application is exemplified by the case where the outer ring burner 110 has the outer ring gas distribution plate 112 and an outer ring ejector pipe 410 communicating with the outer ring gas mixing chamber 111, and the inner ring burner 120 has the inner ring gas distribution plate 122 and an inner ring ejector pipe 420 communicating with the inner ring gas mixing chamber 121.

Optionally, the outer ring air distribution disc 112 and the outer ring injection pipe 410 may be formed integrally or may be formed as a separate structure; correspondingly, the inner ring air distribution disc 122 and the inner ring injection pipe 420 can be integrally formed or can be in a split structure, and the specific structure type is not limited in the application.

The outer ring torch 110 may include an outer ring gas distribution plate 112 and a plurality of outer ring injection pipes 410 communicated with the outer ring gas mixing chamber 111 to adjust the combustion efficiency of the outer ring torch 110; accordingly, the inner ring burner 120 may include an inner ring gas distributor 122 and a plurality of inner ring injection pipes 420 communicating with the outer ring gas mixing chamber 111 to adjust the combustion efficiency of the inner ring burner 120.

In the embodiment of the present application, as shown in fig. 1 and fig. 5, the outer ring air-distributing chamber 112 is of a ring structure, so the outer ring air-mixing chamber 111 is also of a ring structure. The outer ring ejector pipe 410 is matched with the outer ring air distribution disc 112 in structure, the outer ring ejector pipe 410 has a certain rotation angle, the outer ring ejector pipe 410 is tangentially communicated with the outer ring air distribution disc 112, fuel gas and primary air in the outer ring ejector pipe 410 enter the outer ring air mixing cavity 111 in a rotating direction and can have a certain rotating flow trend in the outer ring air mixing cavity 111, and the fuel gas and the primary air can be rapidly mixed in the outer ring air mixing cavity 111 and are uniformly distributed in the outer ring air mixing cavity 111.

In the present application, the inner ring air-distributing plate 122 may be a ring structure, and has a cavity in the center; a circular groove structure may also be employed. In the embodiment of the present application, as shown in fig. 1 and fig. 5, the inner ring gas-distributing disk 122 is a ring structure, and the outer ring diameter of the inner ring gas-distributing disk 122 is smaller than the inner ring diameter of the outer ring gas-distributing disk 112, so that an annular gap is formed between the inner ring gas-distributing disk 122 and the outer ring gas-distributing disk 112 as the secondary air channel 600.

As an alternative embodiment, as shown in fig. 1 and fig. 5, the outer ring flame thrower 110 of this embodiment includes an outer ring gas distributor 112 and an outer ring fire cover 113 disposed on the outer ring gas distributor 112, and an outer ring fire hole 114 is disposed on the outer ring gas distributor 112 or the outer ring fire cover 113; the inner ring flame thrower 120 comprises an inner ring gas distribution plate 122 and an inner ring flame cover 123 arranged on the inner ring gas distribution plate 122, and the inner ring flame holes 124 are arranged on the inner ring gas distribution plate 122 or the inner ring flame cover 123.

As shown in fig. 1 and fig. 5, in the present embodiment, an outer ring gas mixing chamber 111 is formed by an outer ring gas distributing plate 112 and an outer ring fire cover 113 covering the outer ring gas distributing plate 112, and a plurality of outer ring fire holes 114 are uniformly formed on the outer side wall of the outer ring gas distributing plate 112 and surround the outer side wall; an inner ring gas mixing cavity 121 is formed by an inner ring gas distribution disc 122 and an inner ring fire cover 123 covered on the inner ring gas distribution disc 122, and a plurality of inner ring fire holes 124 are uniformly arranged on the inner ring fire cover 123 and surround the inner ring fire cover 123.

In other embodiments, the outer ring fire holes 114 of the outer ring torch 110 and the inner ring fire holes 124 of the inner ring torch 120 may be of other designs. For example, the outer ring fire holes 114 of the outer ring torch 110 are opened on the outer ring fire cover 113, and the inner ring fire holes 124 of the inner ring torch 120 are opened on the inner ring gas distributor 122.

As an alternative embodiment, the secondary air supplement port is formed around the outer fire cover 113. That is, in the present embodiment, the secondary air supply to the outer ring burner 110 is directly supplied through the periphery of the outer ring burner cover 113, and when the energy concentrating disk 500 is fitted to the outer ring burner 110, the periphery of the outer ring burner cover 113 is isolated from the external environment, and the secondary air cannot be supplied, so that the first gap 510 is formed between the energy concentrating disk 500 and the outer ring burner 110, and the second gap 520 is formed between the energy concentrating disk 500 and the partition plate 200. So that the external air sequentially passes through the second gap 520 and the first gap 510 to enter around the outer ring fire cover 113, thereby performing secondary air supplement to the outer ring torch 110.

As shown in fig. 6 and 7, the outer ring torch 110 and the inner ring torch 120 are coaxially disposed, and a gap is formed between the outer ring torch 110 and the inner ring torch 120, the gap serves as a secondary air passage 600 to supplement secondary air for the inner ring torch 120, in order to make the secondary air passage 600 directionally supplement secondary air to the inner ring torch 120, a flow guide 620 is disposed between the outer ring torch 110 and the inner ring torch 120, the flow guide 620 is fixed to the outer ring torch 110, and an air outlet 610 of the secondary air passage faces the inner ring torch 120 through the flow guide 620, so that the purpose of directionally and efficiently supplementing secondary air to the inner ring fire holes 124 is achieved, the load of the inner ring torch 120 is increased, and the purpose of improving the overall energy efficiency of the upper air burner is achieved.

In the related art, the inner and outer double ring upper inlet air burners are provided with the secondary air passage 600 between the inner ring and the outer ring, but the outlet of the secondary air passage 600 is interposed between the inner ring and the outer ring to supplement the secondary air to the inner ring fire holes 124 and the outer ring or space at the same time. However, research shows that the secondary air channel 600 has poor air supply effect on the inner ring fire hole 124, so that the load of the inner ring fire cannot be sufficiently improved, and the energy efficiency of the upper air inlet burner is difficult to improve. In order to make the inner ring fire fully burn, improve the load of inner ring flame thrower 120, the last air inlet burner of this embodiment is equipped with water conservancy diversion piece 620, through fixing on outer ring flame thrower 110 and being located the water conservancy diversion piece 620 between outer ring flame thrower 110 and the inner ring flame thrower 120, so that secondary air channel's gas outlet 610 is towards inner ring flame thrower 120, make the air orientation in secondary air channel 600 supply to inner ring flame thrower 120, thereby make the burning of inner ring flame thrower 120 more abundant, improve the load of inner ring flame thrower 120, and then promote the whole efficiency of last air inlet burner.

Further, go up the air inlet burner under the condition of same total load, the load of inner ring is big more, and the whole efficiency of going up the air inlet burner is high more, and in this application, the last air inlet burner is through improving the secondary air supplement volume to inner ring flame thrower 120 for the load of inner ring flame thrower 120 further promotes, so under the condition of same total load, the efficiency of the last air inlet burner of this application is higher, and the utilization ratio of energy is high, can effectively reduce the use cost of the gas cooking utensils that use this last air inlet burner.

As an alternative embodiment, as shown in fig. 5 and 6, the deflector 620 of the present embodiment includes a cover plate portion 621, the cover plate portion 621 is fixed to the outer ring burner 110 and extends toward the inner ring burner 120, and the air outlet 610 of the secondary air passage is formed between the cover plate portion 621 and the inner ring burner 120. The air outlet 610 of the secondary air passage is formed between the cover plate portion 621 of the flow guide member 620 and the inner ring injector, so that the distance between the air outlet 610 of the secondary air passage and the inner ring flame thrower 120 is closer, the air in the secondary air passage 600 can be accurately supplemented to the position closer to the inner ring flame thrower 120 through the air outlet 610 of the secondary air passage as far as possible, the secondary air supplementing effect of the secondary air passage 600 on the inner ring flame thrower 120 is improved, the combustion of the inner ring flame thrower 120 is more sufficient, and the purpose of improving the load of the inner ring flame thrower 120 is achieved.

As an alternative embodiment, as shown in fig. 5 and 6, the deflector 620 of this embodiment further includes a fitting portion 622 connected to the cover plate portion 621, and the fitting portion 622 is fitted to the outer ring torch 110. The fitting portion 622 is fitted to the outer ring torch 110 so as to seal with the outer ring torch 110, and prevent air in the secondary air passage 600 from entering the outer ring torch 110 along the side wall of the outer ring torch 110; in addition, the fitting portion 622 also has a function of supporting the cover plate portion 621 by the outer ring torch 110, and the cover plate portion 621 is prevented from being deformed by a force to some extent.

As an alternative, as shown in fig. 5 and 6, the flow guiding member 620 of the present embodiment further includes a flow guiding portion 623 connected to the cover plate portion 621 and the attaching portion 622, and the flow guiding portion 623 has an arc-shaped flow guiding surface extending toward the air outlet 610 of the secondary air channel. The flow guide member 620 forms an arc-shaped flow guide surface through the flow guide portion 623, so that the air in the secondary air passage 600 changes the air flow direction in the secondary air passage 600 along the arc-shaped flow guide surface, and the air continues to move along the original direction after flowing out from the air outlet 610 of the secondary air passage, enters the secondary air supply area of the inner ring flame thrower 120, and directionally supplies secondary air to the inner ring flame holes 124, so that the combustion of the inner ring flame thrower 120 is more sufficient, and the purpose of improving the load of the inner ring flame thrower 120 is achieved.

As an alternative, as shown in fig. 5 and 6, the gap between the arc-shaped deflector surface and the inner ring torch 120 of the present embodiment is gradually reduced toward the outlet 610 of the secondary air passage. In this embodiment, the gap between the arc-shaped flow guide surface and the inner ring flame thrower 120 is gradually reduced toward the secondary air supply outlet direction by the gradual extension of the flow guide portion 623, that is, the width of the secondary air passage 600 is gradually tightened, so as to form a venturi effect there, thereby increasing the flow rate of air, when the air outlet 610 of the secondary air passage flows toward the inner ring flame thrower 120 at a high speed, in addition, the ambient air is also driven to flow toward the inner ring flame thrower 120 together, further increasing the secondary air supply amount to the inner ring flame thrower 120, increasing the load of the inner ring flame thrower 120, and achieving the purpose of higher energy efficiency of the upper air burner.

As an alternative embodiment, the flow guiding member 620 of the upper inlet air burner is integrated with the outer fire cover 113. As shown in fig. 5 and 6, the outer ring fire cover 113 of the present embodiment extends toward the inner ring fire thrower 120 at a side adjacent to the inner ring fire thrower 120, so that the extended portion of the outer ring fire cover 113 serves as a cover plate portion 621 of the baffle 620, and the air outlet 610 of the secondary air passage is formed between the extended portion of the outer ring fire cover 113 and the inner ring fire thrower 120. In this embodiment, the outer fire cover 113 and the flow guiding member 620 are integrally arranged, so that the flow guiding member 620 does not need to be separately arranged, the structure of the upper air inlet burner is simple, the assembly is more convenient, the working efficiency is improved, and the material cost is reduced.

Further, one side of the outer ring fire cover 113 adjacent to the outer ring gas distribution plate 112 extends toward the outer ring gas distribution plate 112, so that the extended portion serves as an attaching portion 622, and the supporting effect on the cover plate portion 621 is improved.

As an alternative embodiment, the upper inlet air burner of the present application is disposed on the panel, and the outer gas disk 112 and the panel have a gap therebetween, and the gap communicates with the secondary air channel 600. As shown in fig. 6, in this embodiment, after the upper air inlet burner is mounted on the panel through the overall design of the upper air inlet burner, a certain distance is provided between the bottom of the outer ring air-distributing disk 112 and the panel, and air can enter the secondary air channel 600 through the bottom of the outer ring air-distributing disk 112.

In other embodiments, the flow guide 620 may also be a separate structure with respect to the outer fire cover 113, and the flow guide 620 may be fixed to the outer fire cover 113 or the outer gas distributor 112 by a connecting member. The main body of the diversion part 620 is an annular sheet metal part, the annular sheet metal part is used as a cover plate part 621 of the diversion part 620, the diameter of the outer ring of the annular sheet metal part is larger than that of the inner ring of the outer ring fire cover 113, and the diameter of the inner ring of the annular sheet metal part is larger than that of the outer ring of the inner ring fire cover 123. Optionally, the annular flow guiding plate is fixedly connected to the inner ring edge of the outer fire cover 113 through a connector such as a screw, so that the annular flow guiding member 620 covers the secondary air channel 600, and since the inner ring diameter of the annular flow guiding member 620 is greater than the outer ring diameter of the inner fire cover 123, a gap is formed between the annular flow guiding member 620 and the inner fire cover 123 to serve as an air outlet of the secondary air duct, so that the air in the secondary air channel 600 is guided, and the air in the secondary air channel 600 can be rapidly supplemented to the inner ring flamer 120 through the air outlet 610 of the secondary air channel.

In this embodiment, the width of the air outlet 610 of the secondary air channel can be adjusted by adjusting the relative sizes of the inner ring diameter of the annular sheet metal part and the outer ring diameter of the inner ring fire cover 123, so as to adjust the secondary air supply amount to the inner ring flame thrower 120.

Further optionally, the guide part 620 is provided with a fitting portion 622 connected with the annular sheet metal part, and the fitting portion 622 is used for fitting the air inlet burner on the outer ring, so that the positioning of the annular sheet metal part connected to the outer ring fire cover 113 can be realized on the one hand, and a certain supporting force can be provided for the annular sheet metal part on the other hand.

Further, as an alternative embodiment, as shown in fig. 7, the flow guiding member 620 of this embodiment further includes a flow guiding portion 623 connected to the annular sheet metal member and the attaching portion 622, and the flow guiding portion 623 has an arc-shaped flow guiding surface extending toward the air outlet 610 of the secondary air channel.

As an alternative, as shown in fig. 7, in this embodiment, the upper air inlet burner is disposed on the panel, and there is a gap between the outer ring air-distributing disk 112 and the panel, and the gap is communicated with the secondary air channel 600. As shown in fig. 6, in this embodiment, after the upper air inlet burner is mounted on the panel through the overall design of the upper air inlet burner, a certain distance is provided between the bottom of the outer ring air-distributing disk 112 and the panel, and air can enter the secondary air channel 600 through the bottom of the outer ring air-distributing disk 112.

Based on the same inventive concept, a second broad aspect of the present application provides a gas cooking appliance, which includes the above-described upper intake burner and a panel, on which the upper intake burner is disposed.

Because of the utility model provides a gas cooking utensils have included above-mentioned technical scheme's last air inlet burner, consequently the utility model provides a gas cooking utensils possess above-mentioned whole beneficial effect of going up air inlet burner, do not do here and describe repeatedly.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise" indicate orientations or positional relationships based on the orientation or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.

It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (16)

1. An upper inlet air burner, comprising:

the flame thrower is provided with a gas mixing cavity and a secondary air supplementing port;

a nozzle holder;

the injection pipe is communicated with the gas mixing cavity and the nozzle seat, and a primary air inlet is arranged between the injection pipe and the nozzle seat; and the partition plate is arranged on the lateral outer side surface of the flame thrower and is arranged between the secondary air supplementing port and the primary air inlet.

2. The upper inlet air burner of claim 1, further comprising:

gather can the dish, the cover is established spout on the firearm, and in the secondary air tonifying qi mouth with between the division board, gather can the dish with first clearance has between the firearm, gather can the dish with the second clearance has between the division board.

3. The upper intake burner of claim 2, wherein the splitter plate is in a projected area of the concentrator disk.

4. The upper intake air burner of any one of claims 1 to 3, wherein the torches comprise:

the outer ring flame thrower is provided with an outer ring mixed gas cavity; and the combination of (a) and (b),

the inner ring flame thrower is coaxially arranged with the outer ring flame thrower and is provided with an inner ring gas mixing cavity;

the nozzle holder includes:

an outer ring nozzle holder and an inner ring nozzle holder;

the injection pipe comprises:

the outer ring injection pipe is communicated with the outer ring gas mixing cavity and the outer ring nozzle seat; and the combination of (a) and (b),

and the inner ring injection pipe is communicated with the inner ring gas mixing cavity and the inner ring nozzle seat.

5. The upper intake burner of claim 4, wherein the outer ring flame thrower comprises an outer ring gas distributor and an outer ring fire cover arranged on the outer ring gas distributor, and an outer ring fire hole is arranged on the outer ring gas distributor or the outer ring fire cover;

the inner ring flame thrower comprises an inner ring gas distribution plate and an inner ring flame cover arranged on the inner ring gas distribution plate, and the inner ring gas distribution plate or the inner ring flame cover is provided with an inner ring flame hole.

6. The upper intake air burner of claim 5, wherein the secondary air supply ports are formed around the outer ring fire cover.

7. The upper intake burner of claim 5, wherein a secondary air passage is provided between the outer ring burner and the inner ring burner.

8. The upper inlet air burner of claim 7, further comprising:

and the flow guide piece is fixed on the outer ring flame thrower and is positioned between the outer ring flame thrower and the inner ring flame thrower so as to enable the air outlet of the secondary air channel to face towards the inner ring flame thrower.

9. The upper inlet burner of claim 8, wherein the baffle includes a cover plate portion secured to the outer ring burner and extending toward the inner ring burner, an outlet of the secondary air passage being formed between the cover plate portion and the outer ring burner.

10. The upper intake burner of claim 9, wherein the deflector further comprises an abutment portion connected to the cover portion, the abutment portion abutting the outer ring burner.

11. The upper inlet air burner of claim 10, wherein the deflector further comprises a deflector portion connected to the cover portion and the attachment portion, the deflector portion having an arcuate deflector surface extending in a direction of an outlet of the secondary air channel.

12. The upper inlet burner of claim 11, wherein the gap between the curved deflector surface and the inner ring burner is gradually reduced toward the outlet of the secondary air channel.

13. The upper intake air burner of claim 8, wherein the flow guide is of unitary construction with the outer ring fire cap.

14. The upper inlet air burner as claimed in claim 8, wherein the guide member is fixed to the outer ring fire cover or the outer ring gas-dividing plate by a coupling member.

15. The upper inlet air burner of claim 8, wherein the outer annular gas distributor plate has a gap with a face plate, the gap communicating with the secondary air passage.

16. Gas cooking appliance, characterized in that it comprises an upper inlet burner according to any one of claims 1 to 15 and a panel on which said upper inlet burner is arranged.

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