CN216010828U - Combustion system and card type furnace comprising same - Google Patents

Abstract

The utility model discloses a combustion system and a cassette furnace comprising the same. The combustion system includes: the burner assembly comprises at least two burners, wherein each burner is a straight pipe, the upper wall of which is provided with a plurality of fire holes, and the burner assembly is provided with an open end and a closed end, and the open end of each burner receives gas input; and an ignition assembly including at least one igniter disposed at the open end of the burner, a flame produced by the igniter igniting gas input into the open end of the burner emanating from the fire hole of each burner. According to the combustion system provided by the embodiment of the utility model, at least two straight pipes provided with fire holes are used as the combustors, and the open end of each combustor receives gas input, so that the gas supply at each part of the combustor is sufficient, the phenomena of nonuniform gas distribution and nonuniform flame height at each part caused by resistance and the like in the gas transmission process are greatly reduced, and the uniformity and/or the sufficiency of combustion are improved.

Description

Combustion system and card type furnace comprising same

Technical Field

The utility model relates to the technical field of cooking utensils, in particular to a combustion system and a card type stove comprising the same.

Background

The cassette type oven refers to an unfixed cooking utensil which takes gas such as butane gas, liquefied gas and the like as fuel and directly heats by open fire, and the cassette type oven is widely applied to outdoor cooking due to the advantages of small volume, convenience in carrying and the like.

In the related art, the cassette type furnace often employs a U-shaped burner as shown in fig. 1. The U-shaped burner is composed of a metal tube bent into a U-shape, and is provided with a plurality of fire holes 1. One end 2 of the U-shaped burner is open for receiving gas input; the other end 3 is compacted and closed to form a closed gas circuit. The gas is jetted into the combustor through the nozzle 4 at high speed through the open end 2, and simultaneously, air is jetted to enter, and ignition is completed by the igniter. Due to resistance loss in the U-shaped pipe, gas is unevenly distributed in the U-shaped burner, the gas supply is insufficient as the gas is closer to the closed end part 3, flame is gradually weakened from the open end to the closed end during burning, and the burning is uneven. In a low flame condition, the closed end 3 of the U-shaped burner burns insufficiently and the flame may even extinguish. This results in uneven temperature throughout the food during cooking and poor cooking results.

In addition, the U-shaped burner is formed by bending a metal pipe provided with fire holes. During processing, the fire holes 1 are usually formed in the metal pipe firstly, and then bending is performed, and the bending causes the fire holes close to the bending parts 5 to deform due to the influence of stress in the bending process, so that the shape of the fire holes 1 changes, the combustion condition is influenced, and the flame size is distributed unevenly.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. To this end, it is an object of the present invention to propose a combustion system which improves the homogeneity and/or the sufficiency of the combustion.

Another object of the present invention is to propose a card oven with the above combustion system.

A combustion system according to an embodiment of the utility model comprises: the burner assembly comprises at least two burners, wherein each burner is a straight pipe, the upper wall of which is provided with a plurality of fire holes, and the burner assembly is provided with an open end and a closed end, and the open end of each burner receives gas input; and an ignition assembly including at least one igniter disposed at the open end of the burner, the igniter igniting a flame produced by gas input into the open end of the burner emanating from the fire holes of each burner.

According to the combustion system provided by the embodiment of the utility model, at least two straight pipes provided with fire holes are used as the combustors, and the open end of each combustor receives gas input, so that the gas supply at each part of the combustor is sufficient, the phenomena of uneven gas distribution and inconsistent flame height at each part caused by resistance and the like in the gas transmission process are greatly reduced, and the uniformity and/or the sufficiency of combustion are improved. Moreover, the straight tube combustor does not need to be bent, and the machining size of the fire hole can be ensured, so that the combustion is more sufficient and uniform.

In addition, according to the combustion system of the above embodiment of the present invention, by using at least two straight pipes provided with fire holes as the burners, it is no longer necessary to maintain the bent portions in the U-shaped burners, so that the length of the burners of the combustion system of the above embodiment of the present invention can be significantly shorter than the length of the corresponding U-shaped burners in the case of generating the same effective heating area/heating length. This enables the combustion system according to the above-described embodiment of the utility model to be more compact and therefore requires less installation space.

The combustion system according to the above embodiment of the utility model may also have any one or a combination of any number of the following additional technical features:

according to some embodiments of the utility model, the ignition assembly further comprises a flame transfer frame disposed between two adjacent burners, the flame transfer frame being configured to transfer a flame generated by the igniter igniting the gas between the two adjacent burners.

According to some embodiments of the utility model, the ignition assembly comprises the same number of igniters as the number of burners, each igniter being disposed at an open end of a respective burner.

According to some embodiments of the utility model, the density of the fire holes of the closed end of the burner is greater than the density of the fire holes of the open end; and/or the area of the fire hole at the closed end of the burner is larger than that at the open end.

According to some embodiments of the utility model, adjacent ones of the at least two burners are arranged parallel to each other; and/or adjacent ones of the at least two burners are arranged at an angle to each other.

According to some embodiments of the utility model, the combustion system further comprises a gas canister and a gas pipe, the gas pipe is connected with the gas canister and the open end of each burner respectively and is adapted to input gas in the gas canister into each burner.

According to some embodiments of the utility model, the combustion system further comprises an air valve and a control knob, the air valve is arranged between the gas tank and the gas delivery pipe, and the control knob is connected with the air valve and is suitable for adjusting the opening and closing degree of the air valve so as to adjust the gas quantity input into the gas delivery pipe.

According to some embodiments of the utility model, the control knob is further coupled to the igniter, and the control knob triggers the igniter to ignite when rotated to a predetermined angle.

A card oven according to one embodiment of the present invention includes: a furnace body; and a combustion system according to one or more embodiments of the present invention, the combustion system being fixed in the furnace body.

According to the card type oven disclosed by the embodiment of the utility model, due to the combustion system which is provided with the improved combustion uniformity and/or sufficiency, the card type oven can uniformly and fully heat food, and the cooking effect and efficiency are improved.

As described above, the combustion system according to the above-described embodiment of the present invention can be more compact and requires a smaller installation space than the U-shaped burner. This also enables the card type furnace according to the above-described embodiment of the present invention to provide a higher heating power than the card type furnace having the U-shaped burners in the case of the same size, or enables the card type furnace according to the above-described embodiment of the present invention to have a smaller size and weight than the card type furnace having the U-shaped burners in the case of the same heating power. This is very advantageous for the card ovens, which have high requirements for portability.

In addition, the card oven according to the above embodiment of the present invention may further have any one or a combination of any more of the following additional technical features:

according to some embodiments of the utility model, the furnace body comprises a bottom plate, a side frame and a partition plate, wherein the partition plate is perpendicular to the bottom plate and divides the bottom plate into a first area and a second area, and the first area, the side frame and the partition plate are enclosed to form an accommodating cavity; and each combustor of the combustion system is fixed in the accommodating cavity, and a gas tank of the combustion system is fixed on the second area of the bottom plate.

According to some embodiments of the utility model, the side frame is a U-shaped frame formed by three side plates; the open end of each burner is fixed to the partition plate, and the closed end of each burner is fixed to the side plate opposite to the partition plate in the three side plates.

According to some embodiments of the utility model, a heat shield is disposed between the partition and the gas canister.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings.

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.

FIG. 1 shows a schematic view of a prior art U-shaped burner;

FIGS. 2, 3 show a top schematic view and a bottom schematic view, respectively, of a combustion system according to an embodiment of the utility model;

FIG. 4 shows a schematic view of a burner in the combustion system of FIGS. 2, 3;

FIG. 5 shows a schematic view of a plurality of burners according to another embodiment of the utility model;

FIG. 6 is a schematic view showing the overall structure of a card oven according to an embodiment of the present invention; and

fig. 7 shows a classification diagram of a card oven according to an embodiment of the present invention, showing a structural schematic view of respective components.

Description of reference numerals:

a combustion system 100;

a burner assembly 110; the burner 110-; a fire hole 112; an open end 114; a closed end 116; mounting holes 118;

an ignition assembly 120; an igniter 122; a fire transfer rack 124;

a gas tank 130;

an air delivery conduit 140; a nozzle 142;

a gas valve 150;

a control knob 160;

a cassette furnace 200;

a furnace body 210; a bottom plate 212; a side frame 214; a partition 216;

a fixed frame 222; a support 224;

a gas tank cover 230;

an insulating panel 240.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

A combustion system 100 according to an embodiment of the utility model is described below with reference to fig. 2 to 4. The combustion system 100 may be applied in cooking appliances, such as a card oven, for heating food.

As shown in fig. 2 to 4, the combustion system 100 includes a burner assembly 110 and an ignition assembly 120, the burner assembly 110 including a burner 110-1 and a burner 110-2.

The burners 110-1 and 110-2 are straight tubes with a plurality of fire holes 112 opened in the upper wall and each have an open end 114 and a closed end 116. It should be noted that, in this specification, the upper walls of the burners 110-1 and 110-2 refer to the walls of the burners 110-1 and 110-2 close to the heated object. The open end 114 of each burner 110-1 and 110-2 receives a gas input, respectively. The closed end 116 prevents gas leakage.

The ignition assembly 120 includes an igniter 122, and a flame generated by the ignition of the gas by the igniter 122 is transmitted from the fire holes 112 of each of the burners 110-1 and 110-2. The flame from the fire holes 112 heats the food.

According to the combustion system 100 of the embodiment of the utility model, two straight pipes provided with the fire holes 112 are adopted as the burners 110-1 and 110-2, and the open ends 114 of the burners 110-1 and 110-2 respectively receive gas input, so that the gas supply at each position of the burners 110-1 and 110-2 is sufficient, the phenomena of non-uniform gas distribution and non-uniform flame height at each position caused by resistance and the like in the gas transmission process are greatly reduced, and the uniformity and/or the sufficiency of combustion at each position are improved. Moreover, the straight-tube burners 110-1 and 110-2 do not need to be bent, and the machining size of the fire holes 112 is ensured, so that the combustion is more sufficient and uniform.

Because the sufficiency and the uniformity of burning have been promoted, avoided the risk that the gas directly discharges in the external environment through not burning or not fully burning, reduced the emission of polluting the waste gas, protected user's personal safety.

As shown in fig. 2 to 4, the burners 110-1 and 110-2 are arranged in parallel to each other, so that the flames emitted from the fire holes 112 of the respective burners 110-1 and 110-2 are more uniformly distributed, and the food placed above the combustion system 100 can be more uniformly heated, thereby improving the cooking effect and efficiency of the food.

For example, in the embodiment shown in FIGS. 2-4, the combustion system 100 includes two combustors 110-1 and 110-2. The burners 110-1,110-2 are the same size and are arranged parallel to each other. The burners 110-1 and 110-2 shown in fig. 2 to 4 are arranged in a manner suitable for heating rectangular cooking areas, for example, rectangular cooking areas such as rectangular baking trays or rectangular barbecue grills can be arranged above the two burners 110-1 and 110-2 shown in fig. 2 to 4, and the combustion system 100 can uniformly heat the food in the rectangular cooking areas.

By using straight tubes as the burners 110-1 and 110-2, it is no longer necessary to maintain the bends in the U-shaped burners (see the bend 5 in fig. 1), so that the length of the burners 110-1 and 110-2 of the combustion system 100 according to the above-described embodiment of the present invention can be significantly shorter than the length of the corresponding U-shaped burners, while producing the same effective heating area/heating length. This enables the combustion system 100 according to the above-described embodiment of the present invention to be more compact, and thus requires a smaller installation space.

It should be understood that although fig. 2-4 illustrate an exemplary embodiment in which two burners 110-1 and 110-2 are provided parallel to each other, the burner assembly 110 of the present invention may include more than two burners, for example, 3, 4, 5, 6, 7 or more burners, and the burners may be provided parallel to each other, at an angle to each other, or some burners may be provided parallel to each other and some burners may be provided at an angle to each other. In addition, the burners may be of the same construction and size, or of different constructions and sizes. Further, when the burner assembly 110 includes three or more burners arranged in parallel, the spacing between adjacent burners may be the same or different.

For example, in another embodiment shown in FIG. 5, the burner assembly 110 includes five burners 110-1,110-2,110-3,110-4,110-5 arranged parallel to each other. The five burners 110-1,110-2,110-3,110-4,110-5 are not identical in length, and the spacing between adjacent burners is not identical, for example, the spacing a between the burner 110-2 and the burner 110-3 is different from the spacing b between the burner 110-4 and the burner 110-5. The burners 110-1,110-2,110-3,110-4,110-5 shown in fig. 5 are arranged in a manner suitable for heating a circular cooking area as shown in dashed lines. For example, circular cooking areas such as circular frying pans and baking pans can be arranged above the burners 110-1,110-2,110-3,110-4 and 110-5, and the combustion system can uniformly heat the food in the circular cooking areas.

It should be noted that fig. 5 is mainly used to illustrate an alternative arrangement of the burner assembly 110, and therefore, only the burners 110-1,110-2,110-3,110-4,110-5 are shown in fig. 5, and other components in the combustion system 100 are omitted. It should be understood by those skilled in the art that the combustion system 100 includes components such as an ignition assembly 120 in addition to the burners 110-1,110-2,110-3,110-4,110-5 shown in FIG. 5.

Further, it should be noted that the fire holes 112 of the plurality of burners 110-1,110-2,110-3,110-4,110-5 included in the combustion system 100 may be arranged in various ways, for example, the shape and area of each fire hole 112 and the density distribution of the fire holes 112 on the burners 110-1,110-2,110-3,110-4,110-5 (in the embodiment of the present invention, the density of the fire holes refers to the number of fire holes per unit area) may be arranged. Moreover, the arrangement of the fire holes 112 of the different burners 110-1,110-2,110-3,110-4 and 110-5 can be the same or different.

In one embodiment, the density of the fire holes 112 at the closed end 116 of the burners 110-1,110-2,110-3,110-4,110-5 is greater than the density of the fire holes 112 at the open end 114; and/or the fire holes 112 of the closed end 116 of the burners 110-1,110-2,110-3,110-4,110-5 have a larger area than the fire holes 112 of the open end 114. Because the closed end 116 of the burners 110-1,110-2,110-3,110-4,110-5 is further from the gas input end than the open end 114, the amount of gas at the closed end 116 is slightly less than the amount of gas at the open end 114. By providing a greater density and/or area of flame holes 112 at the closed end 116 to increase the amount of gas delivered to the flame holes 112 near the closed end 116, the flame holes 112 at the closed end 116 emit a greater or greater amount of flame, increasing the area of contact between the flame and the air, and providing more efficient combustion, the difference in flame due to the slightly smaller amount of gas than at the open end 114 is offset, thereby further ensuring uniformity and/or sufficiency of combustion throughout the burners 110-1,110-2,110-3,110-4, 110-5.

In one embodiment, the open end 114 and/or the closed end 116 of the burners 110-1,110-2,110-3,110-4,110-5 are provided with structure for mounting and securing. For example, in the embodiment shown in FIG. 4, the closed ends 116 of the burners 110-1 and 110-2 are provided with mounting holes 118, and the burners 110-1 and 110-2 can be bolted in place through the mounting holes 118 (see examples below, for example, can be secured in the body of a cassette furnace).

As shown in fig. 2, 3, 6 and 7, the ignition assembly 120 includes an igniter 122 disposed at the open end 114 of the burner 110-2, the igniter 122 including a piezoelectric device therein, the piezoelectric device being capable of igniting an electrical spark to ignite a gas to produce a flame. The flame generated by the ignition of the gas by the igniter 122 is transmitted from the fire hole 112 of the burner 110-2. The flame from the fire holes 112 heats the food.

It should be noted that there are various embodiments of the ignition assembly 120 of the present embodiment for the purpose of transmitting a flame out of the fire holes 112 of each of the burners 110-1 and 110-2.

For example, in the embodiment shown in fig. 2, 3, 6, and 7, the ignition assembly 120 further includes a flame-transfer rack 124, and the flame generated by the igniter 122 is transferred from the burner 110-2 where it is located to the burner 110-1 through the flame-transfer rack 124. Specifically, the igniter 122 ignites the flame generated by the gas at the open end 114 of the burner 110-2 and transmits the flame to the open end 114 of the burner 110-1 through the flame-transmitting bracket 124. With the gas input from the open end 114 of each burner 110-1 and 110-2, the flame from the open end 114 of each burner 110-1 and 110-2 is further transferred to the corresponding closed end 116, achieving uniform combustion throughout the burners 110-1 and 110-2.

The igniter 122 generally completes ignition when the gas input amount is large. In the above manner, although only one igniter 122 is disposed at the open end 114 of one burner 110-2, after a large amount of gas is ignited by the igniter 122 to generate a large flame, the flame is rapidly transferred to the burner 110-1 through the flame transfer frame 124, and at this time, even if the gas input amount is reduced, since each burner 110-1 and 110-2 receives the gas input, the gas input is uniform and sufficient, and each burner 110-1 and 110-2 does not extinguish, so that the combustion stability and sufficiency of each burner 110-1 and 110-2 are ensured.

In another embodiment, not shown, the ignition assembly 120 includes two igniters 122 for the burners 110-1 and 110-2, respectively (i.e., a separate igniter is provided for each burner). For example, in the embodiment shown in FIG. 5, one igniter may be provided at each open end of the burners 110-1,110-2,110-3,110-4,110-5 (in FIG. 5, the open end is the right end of each burner 110-1,110-2,110-3,110-4, 110-5), that is, a total of 5 igniters may be provided. Each igniter is used to ignite in a respective burner 110-1,110-2,110-3,110-4,110-5 to produce a flame.

In one embodiment, as shown in FIGS. 2 and 3, the combustion system 100 further includes a gas canister 130 and a gas delivery conduit 140. The gas tank 130 stores therein gas, which includes, but is not limited to, butane gas, liquefied gas, and the like. The gas delivery pipe 140 is connected to the gas canister 130 and the open end 114 of each of the burners 110-1 and 110-2, respectively, and is adapted to deliver the gas in the gas canister 130 to each of the burners 110-1 and 110-2. In one embodiment, the air delivery conduit 140 is provided with a nozzle 142 at the connection with the open end 114 of each burner 110-1 and 110-2. The gas in the gas pipe 140 is injected into the open end 114 of each of the burners 110-1 and 110-2 at a high speed through the nozzle 142, and simultaneously injects air. The gas and air mix at the open end 114 of each burner 110-1 and 110-2 and are ignited by the igniter 122 to initiate combustion.

It should be noted that the present invention is not limited to the specific arrangement of the gas pipe 140, and any gas pipe 140 that can enable the open end 114 of each of the burners 110-1 and 110-2 to receive the input of the gas is within the protection scope of the present invention. For example, the gas delivery conduit 140 may be provided as a multi-ported tube (tee in FIGS. 2 and 3) including a plurality of ports, each of which is connected to the gas canister 130 and the open end 114 of each of the burners 110-1 and 110-2, respectively. As another example, the same number of gas delivery pipes 140 as the burners 110-1 and 110-2 may be provided, each gas delivery pipe 140 being a double-pipe including two ports, both ends of which are connected to the gas canister 130 and the open ends 114 of the respective burners 110-1 and 110-2, respectively. Or, in other embodiments, the number of the gas delivery pipes 140 which is more than 1 and less than the total number of the burners 110-1 and 110-2 can be provided, wherein part of the gas delivery pipes 140 are double-pipe pipes comprising two ports, and two ends of the double-pipe are respectively connected with the gas tank 130 and the open ends 114 of the corresponding burners 110-1 and 110-2; the partial gas delivery pipe 140 is a multi-ported pipe including a plurality of ports that are connected to the gas canister 130 and the open ends 114 of the two or more burners 110-1 and 110-2, respectively.

In one embodiment, as shown in fig. 2 and 3, the combustion system 100 further includes a gas valve 150 and a control knob 160. The gas valve 150 is disposed between the gas canister 130 and the gas delivery conduit 140. The control knob 160 is connected to the gas valve 150 and is adapted to adjust the opening and closing degree of the gas valve 150 so as to adjust the amount of gas to be input into the gas pipe 140, and thus adjust the amount of gas to be input into each of the burners 110-1 and 110-2, so as to meet different cooking requirements. Generally, the greater the angle at which the control knob 160 is rotated, the greater the amount of gas input into the gas delivery conduit 140, and correspondingly, the greater the flame that emerges from the fire hole 112.

In one embodiment, the control knob 160 is also coupled to the igniter 122, and the control knob 160 triggers the igniter 122 to ignite when rotated to a predetermined angle. That is, the control knob 160 is connected to the gas valve 150 and the igniter 122, respectively. Specifically, when the control knob 160 is rotated to a predetermined angle (typically, a large angle), the gas valve 150 is opened, the gas canister 130 outputs a large amount of gas to the gas pipe 140, and the open end 114 of each of the burners 110-1 and 110-2 receives a large amount of gas input. At the same time, the large angle rotation of the control knob 160 toggles the piezoelectric device in the igniter 122, which excites the spark, igniting the gas and producing a flame. The flame is then transmitted to each of the burners 110-1 and 110-2 and emerges evenly from the fire holes 112.

The combustion system 100 of the above-described embodiments of the present invention improves the uniformity and/or sufficiency of combustion. Based on the combustion system 100, the utility model also provides a cassette furnace 200. A card oven 200 according to an embodiment of the present invention will be described with reference to fig. 6 and 7.

As shown in fig. 6 and 7, the card oven 200 according to the embodiment of the present invention includes an oven body 210 and the combustion system 100 according to the embodiment of the present invention described above, and the combustion system 100 is fixed in the oven body 210.

According to the card oven 200 of the embodiment of the utility model, the combustion system 100 of the embodiment of the utility model, which improves the combustion uniformity and/or sufficiency, is included, so that the card oven 200 can uniformly and sufficiently heat food, and the cooking effect and efficiency are improved.

As described above in connection with the embodiments of the combustion system 100, the combustion system 100 according to the above-described embodiments of the present invention can be more compact and thus require less installation space than a U-shaped burner. This also enables the card furnace 200 according to the above-described embodiment of the present invention to provide a higher heating power than the card furnace having the U-shaped burners in the case of the same size, or enables the card furnace 200 according to the above-described embodiment of the present invention to have a smaller size and weight than the card furnace having the U-shaped burners in the case of the same heating power. This is very advantageous for the card ovens, which have high requirements for portability.

In one embodiment, as shown in fig. 6 and 7, the furnace body 210 of the card furnace 200 includes a bottom plate 212, a side frame 214 and a partition plate 216, wherein the partition plate 216 is perpendicular to the bottom plate 212 and divides the bottom plate 212 into a first area (area a in fig. 7) and a second area (area B in fig. 7), and the first area, the side frame 214 and the partition plate 216 enclose to form an accommodating cavity; each of the burners 110-1 and 110-2 of the combustion system is fixed in the receiving chamber, and the gas canister 130 of the combustion system is fixed on the second region of the base plate 212. In one embodiment, the gas canister 130 is removably secured to the second region of the base plate 212 to facilitate replacement of the gas canister 130 when the gas is depleted.

In one embodiment, as shown in fig. 6 and 7, the side frame 214 is a U-shaped frame formed by three side plates. The side frame 214 may be provided with a hollow structure for facilitating heat dissipation of the burners 110-1 and 110-2. The open end 114 of each burner 110-1 and 110-2 is secured to the partition 216, respectively, and the closed end 116 of each burner 110-1 and 110-2 is secured to the side plate of the three side plates opposite to the partition 216, respectively.

More specifically, the card oven 200 also includes a mount 222 and a seat 224. The support 224 is a U-shaped frame, a circular hole for accommodating the open end of the burners 110-1 and 110-2 is formed in the bottom surface of the U-shaped frame, and a mounting hole is formed in the edge of the U-shaped frame. The open end of each of the burners 110-1 and 110-2 is fixed into a circular hole in the bottom surface of the support 224, and the support 224 is screwed to the partition 216 through a mounting hole at the edge thereof. As described above, the closed end of each of the burners 110-1 and 110-2 is provided with the mounting hole 118. The fixing frame 222 is a bending plate, and includes two panels perpendicular to each other, and each panel is provided with a mounting hole. The closed end of each of the burners 110-1 and 110-2 is threadedly coupled to one of the panels of the fixing frame 222 through the mounting holes 118 provided therein, and the other panel of the fixing frame 222 is threadedly coupled to the side panel of the side frame 214 opposite to the partition 216.

According to some embodiments of the present invention, a gas canister cover 230 is provided above the gas canister 130. The gas tank cover 230 is used to protect the gas tank 130 and prevent gas leakage or explosion accidents caused by collision of the gas tank 130.

According to some embodiments of the present invention, a thermal shield 240 is disposed between the baffle 216 and the gas canister 130. The heat insulation plate 240 is made of a heat insulation material, and is used for blocking heat generated by heating the burners 110-1 and 110-2, thereby preventing gas leakage or explosion accidents caused by overheating of the gas tank 130.

The operation of the card oven 200 shown in fig. 6 and 7 may be as follows: first, the gas canister 130 is installed into the furnace body 210 (specifically, as shown in fig. 7, on the B region of the bottom plate 212). Then, the control knob 160 is rotated to a larger angle, the gas valve 150 is opened, and the gas in the gas tank 130 is distributed and delivered through the gas delivery pipe 140, and is uniformly injected into each of the burners 110-1 and 110-2 through the nozzle 142. Meanwhile, a hole is reserved on the partition plate 216, so that a proper amount of air can be conveniently introduced into each of the burners 110-1 and 110-2, and the supply of fuel gas and air is ensured. An igniter 122 provided at the open end of the burner 110-2 generates an electric spark to ignite the gas to generate a flame. Since the control knob 160 is rotated at a large angle, the gas supply amount is sufficient and the generated flame is large. The large fire is rapidly transferred to the burner 110-1 through the fire transfer frame 124, and uniform and sufficient combustion is achieved at each of the burners 110-1 and 110-2. At this time, even if the fire power is reduced by reducing the rotation angle of the control knob 160, since the burners 110-1 and 110-2 receive the gas input, the gas is uniformly supplemented and distributed, and the flameout phenomenon does not occur, and stable, sufficient, and uniform combustion can be still realized.

It will be understood that in this specification, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, indicate an orientation or positional relationship or dimension based on that shown in the drawings, and that such terms are used for convenience of description only and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting to the scope of this application.

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

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. 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 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.

This description provides many different embodiments or examples that can be used to implement the present application. It should be understood that these various embodiments or examples are purely exemplary and are not intended to limit the scope of protection of the present application in any way. Those skilled in the art can conceive of various changes or substitutions based on the disclosure of the specification of the present application, which are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope defined by the appended claims.

Claims (12)

1. A combustion system, comprising:

the burner assembly comprises at least two burners, wherein each burner is a straight pipe, the upper wall of which is provided with a plurality of fire holes, and the burner assembly is provided with an open end and a closed end, and the open end of each burner receives gas input; and

an ignition assembly including at least one igniter disposed at the open end of the burner, the igniter igniting a flame produced by gas input into the open end of the burner emanating from the fire holes of each burner.

2. The combustion system of claim 1,

the ignition assembly further comprises a flame transfer frame arranged between the two adjacent burners, and the flame transfer frame is used for transferring flame generated by ignition of gas by the igniter between the two adjacent burners.

3. The combustion system of claim 1,

the ignition assembly includes the same number of igniters as the burners, each of the igniters being disposed at an open end of a corresponding burner.

4. The combustion system of any of claims 1-3,

the density of the fire holes at the closed end of the burner is greater than that of the fire holes at the open end of the burner; and/or

The area of the fire hole at the closed end of the burner is larger than that of the fire hole at the open end.

5. The combustion system of any of claims 1-3,

adjacent burners of the at least two burners are arranged in parallel with each other; and/or

Adjacent ones of the at least two burners are disposed at an angle to each other.

6. The combustion system of any of claims 1-3,

the gas-saving gas burner is characterized by further comprising a gas tank and gas conveying pipes, wherein the gas conveying pipes are respectively connected with the gas tank and the opening ends of the burners and are suitable for conveying gas in the gas tank to the burners.

7. The combustion system of claim 6,

also comprises an air valve and a control knob,

the air valve is arranged between the gas tank and the gas pipe,

the control knob is connected with the air valve and is suitable for adjusting the opening and closing degree of the air valve so as to adjust the gas quantity input into the gas conveying pipe.

8. The combustion system of claim 7,

the control knob is further connected with the igniter, and the control knob triggers the igniter to ignite when rotating to a preset angle.

9. A card oven, comprising:

a furnace body; and

a combustion system according to any one of claims 1 to 8, which is fixed in the furnace body.

10. The card oven of claim 9,

the furnace body comprises a bottom plate, side frames and a partition plate, the partition plate is perpendicular to the bottom plate and divides the bottom plate into a first area and a second area, and the first area, the side frames and the partition plate are enclosed to form an accommodating cavity;

and each combustor of the combustion system is fixed in the accommodating cavity, and a gas tank of the combustion system is fixed on the second area of the bottom plate.

11. The card oven of claim 10,

the side frame is a U-shaped frame formed by three side plates;

the open end of each burner is fixed to the partition plate, and the closed end of each burner is fixed to the side plate opposite to the partition plate in the three side plates.

12. The card oven of claim 10,

and a heat insulation plate is arranged between the partition plate and the gas tank.

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