CN116906944A - A new type of upward air burner - Google Patents

Abstract

The invention discloses a new type of upward air inlet burner, which includes a burner head. The burner head has an outer ring cavity and an inner ring cavity. on the outer ring cavity; an inner fire cover, the inner fire cover is arranged on the inner ring cavity; a secondary air channel, the secondary air channel is disposed through the middle position of the burner head to provide The inner fire cover is used for secondary air replenishment. Its structure is simple, which can effectively improve the tempering performance of the burner and further increase the heat load of the burner.

Description

A new type of upward air burner

Technical field

The present invention relates to the technical field of stoves, and in particular to a new type of upward air inlet burner.

Background technique

At present, most energy-concentrated burners on the market have a downward air intake structure and have a small heat load. At the same time, it is difficult to realize the stir-frying function. Most of the atmospheric burners reach 5.2kW and can realize stir-frying function. However, the existing concentrated energy burner will turn red as a whole after being ignited. If the load is increased to implement the stir-fry function, the red state will not change significantly, and it is difficult for users to perceive it. They will think that the stir-fry function is not available or that the stir-fry function is invalid, which will make the user feel uncomfortable. Confusion arises for the user, resulting in a poor user experience.

In addition, due to the large diameter of the combustion plate of the concentrated burner, the secondary air supplemented from the outer ring alone cannot meet its needs. Part of the secondary air needs to be supplemented from the center all the way to the hole in the bottom shell (limited by the downward inlet). The structure of the wind energy-collecting burner (the hole in the center of the burner head can only lead to the bottom shell), and the overflow will flow into the bottom shell from here, which is inconvenient to clean. Of course, the overflow may also enter the inside of the burner head through the gap in the burning plate. Not only It makes cleaning difficult, and in severe cases, it will affect the combustion performance of the burner.

In addition, if a downward air inlet concentrated burner is used, the cavity volume will be larger and the static pressure will be smaller. Therefore, compared with an upward air inlet burner, it is more likely to backfire due to the increased heat load.

Contents of the invention

The present invention aims to solve, at least to a certain extent, one of the problems existing in the existing related technologies. To this end, the present invention proposes a new type of upward air inlet burner, which has a simple structure and can effectively improve the backfire performance of the burner. At the same time, the heat load of the burner can be further increased.

The above objectives are achieved through the following technical solutions:

A new type of top-intake burner includes a burner head, which has an outer ring cavity and an inner ring cavity, and also includes:

A concentrated energy combustion disk, which is arranged on the outer ring cavity;

Inner fire cover, the inner fire cover is provided on the inner ring cavity;

A secondary air channel is provided through the middle position of the burner head to supplement the inner fire cover with secondary air.

In some embodiments, a stir-frying cavity is further included, and the stir-frying cavity is disposed at an intermediate position between the outer ring cavity and the inner ring cavity.

In some embodiments, one end of the inner fire cover is provided on the inner ring cavity, and the other end cover is provided on the stir-frying cavity, and there are openings spaced apart along the radial direction on the inner fire cover. There are inner ring fire holes and stir-frying fire holes. The inner ring fire hole is connected to the inner ring cavity, and the stir-frying fire hole is connected to the stir-frying cavity.

In some embodiments, the burner is provided with a stir-fry nozzle and a stir-fry ejector tube. One end of the stir-fry ejector tube is connected to the stir-fry cavity, and the other end passes through the stir-fry ejector tube. The nozzle is connected to an external air supply.

In some embodiments, the burner head is further provided with a flame transfer cavity, the flame transfer cavity is connected with the inner ring cavity, and the inner fire cover is provided with a flame transfer cavity connected to the flame transfer cavity. Corresponding fire hole.

In some embodiments, a liquid tray is further included, wherein the liquid tray is disposed on the stove panel.

In some embodiments, the burner head is further provided with an outer ring ejector tube, an outer ring nozzle, an inner ring ejector tube and an inner ring nozzle, wherein one end of the outer ring ejector tube is connected to the outer ring cavity. The other end is connected to the external air supply through the outer ring nozzle. One end of the inner ring ejection tube is connected to the inner ring cavity, and the other end is connected to the external air supply through the inner ring nozzle. Pass.

In some embodiments, a blocking portion is further included, the blocking portion is disposed on the inner wall of the outer ring ejector tube, and the blocking portion is located on the outer ring ejector tube close to the outer ring cavity. on one end of the body.

In some embodiments, an ignition needle and a shielding member are further included, wherein the ignition needle is disposed in the secondary air channel, and the ignition end of the ignition needle is disposed opposite to the inner fire cover, and the shielding member The interval is provided at an upper position of the secondary air channel.

In some embodiments, a guide plate is further included. The guide plate is arranged in the outer ring cavity, and a guide hole is opened on the guide plate to conduct the mixed gas in the outer ring cavity. diversion.

Compared with the prior art, the present invention at least includes the following beneficial effects:

1. The upper air inlet burner of the present invention has a simple structure, can effectively improve the backfire performance of the burner, and can further increase the heat load of the burner.

Description of the drawings

Figure 1 is a schematic structural diagram of an upper air inlet burner in an embodiment of the present invention;

Figure 2 is a cross-sectional view of an upper air inlet burner in an embodiment of the present invention;

Figure 3 is an exploded schematic diagram of an upper air intake burner in the embodiment of the present invention.

Detailed ways

The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific embodiments of the present invention or equivalent substitutions of some technical features without departing from the spirit of the present invention shall be included in the scope of the technical solution claimed by the present invention.

Example:

As shown in Figures 1 to 3, this embodiment provides a new type of top-intake burner, which includes a burner head 1. The burner head 1 has an outer ring cavity 2 and an inner ring cavity 3, and also includes:

The energy-gathering combustion disk 4 is arranged on the outer ring cavity 2;

The inner fire cover 5 is located on the inner ring cavity 3;

The secondary air channel 6 is provided through the middle position of the burner head 1 to supplement the inner fire cover 5 with secondary air.

In this embodiment, the burner head 1 has an outer ring cavity 2 and an inner ring cavity 3, so that the outer ring cavity 2 is located at an external position of the inner ring cavity 3, and a focus is provided on the outer ring cavity 2. The burning disk 4 enables the outer ring fire of the burner to achieve infrared concentrated energy combustion. At the same time, the inner ring cavity 3 is covered with an inner fire cover 5, so that the inner ring fire of the burner realizes atmospheric combustion. That is, The burner can achieve a combination of concentrated energy combustion and atmospheric combustion, which can effectively increase the combustion load while ensuring high thermal efficiency. Moreover, a secondary air channel 6 is provided in the middle of the burner head 1. The upper end of the air channel 6 is connected to the upper end of the burner head 1, and its lower end is connected to the outside through the gap between the burner head 1 and the nozzle seat, so that the inner fire cover 5 can be subjected to secondary air through the secondary air channel 6 In addition, the burner head 1 is easier to dissipate heat and is less likely to cause tempering due to high temperatures. Its simple structure can effectively improve the tempering performance of the burner and further increase the heat load of the burner.

Furthermore, it also includes a stir-frying cavity 7 , which is arranged at the middle position between the outer ring cavity 2 and the inner ring cavity 3 .

Preferably, one end of the inner fire cover 5 is provided on the inner ring cavity 3, and the other end cover is provided on the stir-frying cavity 7, and the inner fire cover 5 is provided with inner ring fire holes 51 and 51 at intervals along the radial direction. The stir-fry fire hole 52, the inner ring fire hole 51 is connected with the inner ring cavity, and the stir-fry fire hole 52 is connected with the stir-fry cavity.

Specifically, the burner 1 is provided with a stir-fry nozzle 71 and a stir-fry ejector tube. One end of the stir-fry ejector tube is connected to the stir-frying cavity 7 , and the other end is connected to the external air supply through the stir-fry nozzle 71 . .

In this embodiment, a stir-frying cavity 7 is provided at the middle position of the outer ring cavity 2 and the inner ring cavity 3. At the same time, the inner fire cover 5 is disposed on both the inner ring cavity 3 and the stir-frying cavity. 7, at the same time, the inner ring fire hole 51 and the stir-frying fire hole 52 are spaced along the radial direction on the inner fire cover 5. The inner ring fire hole 51 is connected with the inner ring cavity, and the stir-fry fire hole 52 is connected with the stir-fry The chambers are connected, and the upper end of the secondary air channel 6 is set correspondingly to the inner ring fire hole 51 of the inner fire cover 5, so that both the inner ring fire and the stir-frying fire of the burner are atmospheric combustion. 6. It can make the stir-fry fire burn better, and after activating the one-button stir-fry function, the burner will appear to add one more ring of fire, which will produce a significant visual difference from the original state, thereby giving feedback to the user, and then Solve the problem of unclear user perception. If the one-click stir-fry function fails, users can clearly judge it. This can eliminate users' doubts, thereby solving pain points and improving user experience.

Furthermore, the burner head 1 is also provided with a flame transfer chamber 8 , which is connected with the inner ring cavity 3 , and a flame transfer hole corresponding to the flame transfer cavity 8 is provided on the inner fire cover 5 .

In this embodiment, the burner head 1 is also provided with a flame transfer cavity 8. More preferably, the flame transfer cavity 8 is located on the stir-frying cavity 7 and is connected with the inner ring cavity 3. The fire is controlled individually by the user, that is, the stir-frying fire is not an open flame. In order to ensure that the open flame of the inner ring fire can be smoothly transferred to the outer ring fire, at the same time, the inner fire cover 5 is also provided with a fire transfer chamber 8 connected to it. The fire transmission hole is arranged tilted toward the outer ring cavity 2 to make the fire transmission cavity 8 easier to transmit fire. Therefore, the fire transmission cavity 8 is spaced out in the stir-frying cavity 7, so that the flame there It is an everlasting flame, and when a small fire turns into a large fire, it can smoothly spread the everlasting flame to the outer ring fire. In addition, in order to achieve alignment between the flame transfer hole and the flame transfer cavity 8 after assembly, a recess is provided on the burner head 1, and a positioning post matching the recess is provided on the inner fire cover 5, so that the assembly can be The flame transfer hole of the inner fire cover 5 is arranged corresponding to the flame transfer cavity 8 .

Preferably, a liquid holding tray 12 is also included, wherein the liquid holding tray 12 is disposed on the stove panel.

In this embodiment, the burner 1 is installed on the stove panel, so that the pot support 11 is also disposed on the stove panel, the liquid tray 12 is also disposed on the stove panel, and the liquid tray 12 is located at an external position of the burner 1 , the surface of the liquid tray 12 is preferably set to a sealed structure. Since the entire burner is on the stove panel, the stove can be easily disassembled and cleaned. The secondary air channel 6 at the middle position of the burner head 1 can solve the problem of internal ring fire. Secondary air replenishment problem, at the same time, since there is no hole leading to the bottom shell on the liquid tray 12, the overflow will not enter the inside of the bottom shell, and it can also prevent the overflow from flowing into the bottom shell, even if the overflow flows into the burner Inside, the burner can be taken out and the liquid can be poured out from the end of the ejector tube, thereby solving the problem of overflow affecting combustion.

Further, the burner head 1 is also provided with an outer ring ejector tube, an outer ring nozzle 22, an inner ring ejector tube and an inner ring nozzle 32, in which one end of the outer ring ejector tube is connected to the outer ring cavity 2, and the other end is connected to the outer ring cavity 2. One end is connected to the external air supply through the outer ring nozzle 22, one end of the inner ring ejection pipe is connected to the inner ring cavity 3, and the other end is connected to the external air supply through the inner ring nozzle 32.

In this embodiment, a nozzle seat is provided at the lower end of the burner head 1, and an outer ring nozzle 22, an inner ring nozzle 32 and a stir-frying nozzle 71 are respectively provided on the nozzle seat, and one end of the outer ring ejector tube is connected to the outer ring The cavity 2 is connected, and the other end is connected to the external air supply through the outer ring nozzle 22. One end of the inner ring ejection pipe is connected to the inner ring cavity 3, and the other end is connected to the external air supply through the inner ring nozzle 32. At the same time, , one end of the stir-frying ejector tube is connected to the stir-frying cavity 7, and the other end is connected to the external air supply through the stir-frying nozzle 71, so that each nozzle is individually connected to the external air supply to independently flow to the corresponding cavity. Supply air to the body. Generally, the shut-off scheme is used for the stir-frying function of burners, but the shut-off scheme will reduce the pressure in front of the nozzle, thereby reducing the ejection capability. For the concentrated burner that requires complete premixing, the combustion with low heat load will be reduced. The performance of the injector will be more difficult to solve, so that each ring cavity is supplied with air independently through each nozzle, that is, no flow interception scheme is used, so that the pressure in front of the nozzle is not lost, thereby ensuring the ejection function, and thus making the air mixture Able to be completely premixed for good burner combustion.

Preferably, a blocking portion 23 is also included, the blocking portion 23 is disposed on the inner wall of the outer ring ejector tube, and the blocking portion 23 is located on one end of the outer ring ejector tube close to the outer ring cavity 2 .

In this embodiment, in order to make the gas distribution more uniform, after the gas is injected from the nozzle into the ejector tube, it will turn at the arc on the inner wall of the ejector tube and then enter the corresponding gas cavity, so that the air-mixed gas After mixing, follow the inclined plane to the end of the ejector tube, and the gas is just in the middle position, so that the distance of the outward diffusion of the air mixture there is equal to the distance of the inward diffusion, and the length of the outlet end of the ejector tube is the maximum width of the cross-section of the outer ring ejector tube, thereby making the gas disperse more evenly. More preferably, a blocking portion 23 is protruding above the central axis of the end of the ejection tube. The blocking portion 23 extends in the horizontal direction. When the blocking portion 23 is viewed from top to bottom, the blocking portion 23 has an arc-shaped structure to facilitate the airflow. In the process of gradually slowing down, it is more convenient to spread around, making the air pressure in all parts of the cavity uniform. At the same time, it can also prevent the air flow hitting that place from rushing upward, so that the air flow flows clockwise along the inner wall, so that there will be no Local lighting occurs due to excessive local airflow, which makes the redness of the combustion plate more uniform.

Specifically, it also includes an ignition needle 91 and a shielding member 92, wherein the ignition needle 91 is arranged in the secondary air channel 6, and the ignition end of the ignition needle 91 is arranged opposite to the inner fire cover 5, and the shielding member 92 is arranged at intervals in the secondary air passage. At the top of channel 6.

In this embodiment, the ignition needle 91 is installed on the secondary air channel 6 in the middle of the burner head 1. The disassembly and assembly of the burner can be completed by taking it up and down with external force. The structure is simple, easy to use, and can be completed without too much movement. The surface of the liquid tray 12 is cleaned. Even if the overflow enters the inside of the burner 1, just pick it up and pour out the overflow. More preferably, a shield 92 is provided above the secondary air channel 6 to block foreign matter. , thereby improving the ignition success rate.

In particular, it also includes a guide plate 24 , which is arranged in the outer ring cavity 2 , and a guide hole is opened on the guide plate 24 to guide the mixed gas in the outer ring cavity 2 .

In this embodiment, because the air flow at the end of the ejector tube is large, and the redness of the combustion disk will be more obvious in places with a large amount of gas, a guide plate 24 is added in the outer ring cavity 2. The flow plate 24 is provided with flow guide holes to reduce the gas outlet area, thereby making the gas distribution more uniform. In addition, the bottom wall of the guide plate 24 and the air distribution plate of the burner head 1 form a heat insulation cavity, so that heat is not easily lost, thereby effectively improving thermal efficiency.

In this embodiment, if the outer ring or inner ring of the burner is used normally like a conventional stove, the stir-fry fire will not be turned on. When the user needs to increase the fire power, by pressing the knob or long pressing the touch screen switch, The igniter sends a signal to open the solenoid valve and start the stir-frying fire. The stir-frying state proceeds according to the set program and automatically turns off after 1 minute. When the user needs to turn on the stir-fry again, he only needs to press the knob again or long press the touch screen switch. Yes, but the time interval between two stir-frying is 1s to 2s. During the stir-frying state, the user can also press the knob again or tap the touch screen button to turn off the stir-frying function.

What is described above are only some embodiments of the present invention. For those of ordinary skill in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (10)

1. A new type of upward air burner, including a burner head (1). The burner head (1) has an outer ring cavity (2) and an inner ring cavity (3). It is characterized in that it also includes: Energy-gathering combustion disk (4), the energy-gathering combustion disk (4) is arranged on the outer ring cavity (2); Inner fire cover (5), the inner fire cover (5) is provided on the inner ring cavity (3); A secondary air channel (6) is provided through the middle position of the burner head (1) to supplement the inner fire cover (5) with secondary air. 2. A new type of upward air inlet burner according to claim 1, characterized in that it also includes a stir-frying cavity (7), and the stir-frying cavity (7) is arranged in the outer ring cavity (7). 2) and the middle position of the inner ring cavity (3). 3. A new type of upward air inlet burner according to claim 2, characterized in that one end of the inner fire cover (5) is provided on the inner ring cavity (3), and the other end cover is provided on the inner ring cavity (3). The stir-frying cavity (7) and the inner fire cover (5) are provided with inner ring fire holes (51) and stir-fry fire holes (52) spaced along the radial direction. The hole (51) is connected to the inner ring cavity (3), and the stir-frying fire hole (52) is connected to the stir-frying cavity (7). 4. A new type of upward air-intake burner according to claim 2, characterized in that a stir-fry nozzle (71) and a stir-fry ejector are respectively provided on the burner head (1). One end of the frying ejector tube is connected to the stir-frying cavity (7), and the other end is connected to the external air supply through the stir-frying nozzle (71). 5. A new type of upward air inlet burner according to claim 1, characterized in that the burner head (1) is also provided with a flame transfer cavity (8), and the flame transfer cavity (8) is connected to the flame transfer cavity (8). The inner ring cavities (3) are connected, and the inner fire cover (5) is provided with a fire transmission hole corresponding to the fire transmission cavity (8). 6. A new type of top-intake burner according to claim 1, characterized in that it also includes a liquid-containing tray (12), wherein the liquid-containing tray (12) is arranged on the stove panel. 7. A new type of upward air inlet burner according to claim 1, characterized in that the burner head (1) is also provided with an outer ring ejector tube, an outer ring nozzle (22), an inner ring ejector The injection tube and the inner ring nozzle (32), wherein one end of the outer ring injection tube is connected to the outer ring cavity (2), and the other end is connected to the external air supply through the outer ring nozzle (22), One end of the inner ring ejection tube is connected to the inner ring cavity (3), and the other end is connected to the external air supply through the inner ring nozzle (32). 8. A new type of upward air inlet burner according to claim 7, characterized in that it also includes a blocking part (23), and the blocking part (23) is arranged on the inner side wall of the outer ring ejector tube. , and the blocking part (23) is located on one end of the outer ring ejection tube close to the outer ring cavity (2). 9. A new type of top air inlet burner according to claim 1, characterized in that it also includes an ignition needle (91) and a shielding member (92), wherein the ignition needle (91) is arranged on the secondary In the air channel (6), the ignition end of the ignition needle (91) is arranged opposite to the inner fire cover (5), and the blocking member (92) is arranged at intervals in the secondary air channel (6). at the upper position. 10. A new type of upward air inlet burner according to any one of claims 1 to 9, characterized in that it also includes a baffle (24), and the baffle (24) is arranged in the outer annular cavity. In the body (2), a guide hole is provided on the guide plate (24) to guide the mixed gas in the outer ring cavity (2).