Combustor with compact structure

Abstract

The utility model relates to the field of combustors, in particular to a combustor with a compact structure, which comprises a combustion chamber, an inner ring fire cover and an outer ring fire cover are arranged on the combustion chamber, an inner ring pipe supplies air to the inner ring fire cover, two outer ring pipes supply air to the outer ring fire cover, the inner ring pipe and the outer ring pipes are positioned below the combustion chamber, and the outer ring pipes are arranged on two sides of the inner ring pipe. The inlet directions of the two outer ring pipes are opposite; an inner ring nozzle and an outer ring nozzle are arranged on the base, the inner ring nozzle corresponds to the inner ring pipe, and the outer ring nozzle corresponds to the outer ring pipe; a gap is reserved between the base and the combustion chamber, and air enters the matched combustion chamber from the gap for combustion. After the scheme is adopted, the occupied space of the combustor is reduced as much as possible on the premise of ensuring sufficient combustion.

Description

Technical Field

[0001] The utility model relates to the field of burners, in particular to a burner with a compact structure. Background Art

[0002] When the burner of the gas stove is working, the gas enters the stove from the air inlet pipe, enters the burner through the adjustment of the gas valve, and mixes with a part of the air at the same time. The mixed gas is discharged from the fire of the ignition distributor. In the hole The ejected liquid is simultaneously ignited by an ignition device to form a flame, wherein the ignition device generally includes a micro switch controlled by a knob to turn on the power and an ignition needle to provide electric fire.

[0003] Because of various problems with traditional down-draft burners, more and more gas stoves are beginning to use up-draft burners, that is, the primary air used for gas mixing and the secondary air required for combustion are both added from above the burner base.

[0004] In order to provide sufficient gas, existing burners such as CN102661606A are equipped with multiple outer ring ejector tubes (to provide gas to the outer ring of the burner), which will make the gas burner itself too large and unsuitable for relatively small gas stoves.

[0005] Therefore, the inventor conducted further research and developed a burner with a compact structure, which resulted in the present invention. Utility Model Content

[0006] The purpose of the utility model is to provide a burner with a compact structure, which can reduce the occupied space of the burner itself as much as possible while ensuring sufficient combustion.

[0007] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0008] A compact burner comprising

[0009] The combustion chamber is provided with an inner ring fire cover and an outer ring fire cover. The inner ring fire cover is supplied with air by an inner ring pipe, and the outer ring fire cover is supplied with air by two outer ring pipes. The inner and outer ring pipes are located below the combustion chamber, and the outer ring pipes are arranged on both sides of the inner ring pipe, and the inlets of the two outer ring pipes are in opposite directions.

[0010] A base is provided with an inner ring nozzle and an outer ring nozzle, the inner ring nozzle corresponds to the inner ring tube, and the outer ring nozzle corresponds to the outer ring tube;

[0011] There is a gap between the base and the combustion chamber, and air enters the combustion chamber through the gap to cooperate with combustion.

[0012] In the field of burners, its basic structure has been a mature technical means in the art, that is, through the nozzle to supply gas to the corresponding outer ring pipe or inner ring pipe, the inner ring pipe corresponds to the inner ring fire cover, and the outer ring pipe corresponds to the outer ring pipe, the difference of the present scheme lies in that the above-mentioned existing gas supply structure is arranged more compactly and reasonably, so that the volume of the burner is as small as possible, and at the same time, a reasonable gas supply layout is ensured.

[0013] Further, the inner ring fire cover is further provided with a flame injection pipe in the middle, and the flame injection pipe is supplied with gas through the center nozzle.

[0014] The flame injection pipe is used to strengthen the central firepower.

[0015] Further, a ignition needle and a thermocouple are arranged between the inner ring fire cover and the outer ring fire cover.

[0016] The ignition needle is used for firing, and the thermocouple is used for detecting whether the burner flame is normally burned.

[0017] Further, the combustion chamber is provided with an ignition needle positioning hole and a thermocouple positioning hole.

[0018] Further, the upper part of the flame injection pipe is provided with a protective cover.

[0019] The protective cover can prevent foreign matter from blocking the center nozzle during use.

[0020] Further, the inner ring nozzle is communicated with the inner ring gas inlet below the base, one of the outer ring nozzles is communicated with the outer ring gas inlet below the base, and the other outer ring nozzle is communicated with the outer ring gas inlet through the outer ring gas passage.

[0021] After the above scheme is adopted, the present application has the following advantages compared with the prior art:

[0022] The secondary air passage is arranged between the flame injection port and the inner ring flame, which provides the air required by the central flame, and ensures the stable combustion of the flame; it is used for kitchen cooking utensils, and has the advantages of compact structure and stable work. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic view of an embodiment of the present application;

[0024] Figure 2 is a cross-sectional schematic view of an embodiment;

[0025] Figure 3 is an exploded view of an embodiment;

[0026] Figure 4 is a bottom view of the base;

[0027] Figure 5 is a bottom view of the combustion chamber;

[0028] Label Description

[0029] Combustion chamber 1;

[0030] Inner ring fire cover 2, inner ring nozzle 21, inner ring pipe 22, inner ring gas inlet 23;

[0031] Outer ring fire cover 3, outer ring nozzle 31, outer ring pipe 32,

[0032] Outer ring gas inlet 33, outer ring gas passage 34;

[0033] Flame injection pipe 4, center nozzle 41, protective cover 42; base 5;

[0034] Ignition needle 6, ignition needle positioning hole 61; thermocouple 7, thermocouple positioning hole 71. DETAILED DESCRIPTION

[0035] The utility model will be further described below in combination with the drawings and specific embodiments.

[0036] Reference Figures 1-5 As shown in the figure, a compact burner structure, including inner ring fire cover 2, flame injection pipe 4, outer ring fire cover 3, combustion chamber 1 and base 5, combustion chamber 1 is provided with inner ring fire cover 2, outer ring fire cover 3, wherein the inner ring fire cover 2 is supplied by the inner ring pipe 22, and the outer ring fire cover 3 is supplied by two outer ring pipes 32, the inner ring pipe 22 and the outer ring pipe 32 are located below the combustion chamber 1, the outer ring pipe 32 is arranged on both sides of the inner ring pipe 22, and the inlet directions of the two outer ring pipes 32 are opposite; the base 5 is provided with inner ring nozzle 21 and outer ring nozzle 31, the inner ring nozzle 21 corresponds to the inner ring pipe 22, and the outer ring nozzle 31 corresponds to the outer ring pipe 32; the flame injection pipe 4 is arranged at the center position of the inner ring fire cover 2 as a flame port, the flame port is provided with a protective cover 42, the lower part of the flame port is provided with a reverse tapered flame injection pipe 4, the center nozzle 41 is installed at the center of the base 5, and the protective cover 42 can prevent foreign matter from blocking the center nozzle 41 during use. Gas is sprayed out through the center nozzle 41 into the flame injection pipe 4, forming a mixed gas of gas and primary air inside the ejector, and then sprayed out from the flame port, forming a stable spray flame at the upper part of the flame port.

[0037] The combustion chamber 1 is also provided with ignition needle positioning hole 61 and thermocouple positioning hole 71, and is installed on the base 5 through the guidance of ignition needle 6 and thermocouple 7, and the relative positions of the combustion chamber 1 and the nozzles on the base 5 are ensured through the guidance of the thermocouple 7 and the ignition needle 6.

[0038] The inner ring nozzle 21 is communicated with the inner ring gas inlet 23 below the base 5, one of the outer ring nozzles 31 is communicated with the outer ring gas inlet 33 below the base 5, and the other outer ring nozzle 31 is communicated with the outer ring gas inlet 33 through the outer ring gas passage 34.

[0039] In operation, gas is input through the lowermost gas inlets and is injected through the respective nozzles into the outer ring portion, the inner ring portion, and the center portion of the combustion chamber, and is mixed with air in the process, and is ignited and combusted by the ignition needle.

[0040] The above is only a specific embodiment of the present application, meanwhile, all the words such as "upper", "lower", "left", "right", "middle" and the like involved in the present application are only for reference, not absolute limitation, and any non-substantial change made by using the present application shall belong to the behavior of infringing the protection scope of the present application.

Claims

1. A compact burner characterized by: The utility model relates to a double-ring combustion chamber and a double-ring nozzle for a gas turbine engine. The combustion chamber is provided with an inner ring flame cover and an outer ring flame cover. The inner ring flame cover is supplied with gas by an inner ring pipe, and the outer ring flame cover is supplied with gas by two outer ring pipes. The inner ring pipe and the outer ring pipes are located below the combustion chamber.

2. A compact burner according to claim 1, characterized in that: The outer ring pipes are arranged on both sides of the inner ring pipe, and the inlet directions of the two outer ring pipes are opposite.

3. A compact combustor as recited in claim 1, characterized by: The bottom base is provided with an inner ring nozzle and an outer ring nozzle.

4. A compact burner according to claim 3, characterized in that: The inner ring nozzle corresponds to the inner ring pipe, and the outer ring nozzle corresponds to the outer ring pipe.

5. A compact combustor as recited in claim 2, wherein: A gap is left between the bottom base and the combustion chamber, and air enters the gap to burn in the combustion chamber.

6. A compact combustor as recited in claim 1, characterized by: A flame injection pipe is arranged in the middle of the inner ring flame cover. The flame injection pipe is supplied with gas by a center nozzle. A hot wire and a thermocouple are arranged between the inner ring flame cover and the outer ring flame cover. The combustion chamber is provided with a hot wire positioning hole and a thermocouple positioning hole. The upper part of the flame injection pipe is provided with a protective cover. The inner ring nozzle is in communication with an inner ring gas inlet below the bottom base. One of the outer ring nozzles is in communication with an outer ring gas inlet below the bottom base, and the other outer ring nozzle is in communication with the outer ring gas inlet through an outer ring gas channel.

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