Preheating and premixing gas burner

Abstract

The utility model provides a preheating and premixing gas burner. The preheating and premixing gas burner comprises a burner outer shell, a connecting shell arranged at the top of the burner outer shell and a fire stabilizing ring arranged at the top of the connecting shell. A combustor inner shell is arranged in the middle of the interior of the combustor outer shell. A flame divider is arranged in the connecting shell; the interior of the combustor inner shell is hollow, and a small fire tube is arranged in the middle of the bottom of the combustor inner shell and penetrates through the flame divider; ignition induction needles are arranged on the two sides of the small fire tube, and one end of each ignition induction needle penetrates through the side wall of the combustor inner shell and extends into the flame divider. According to the utility model, the technical effect of no kindling is realized, the required firepower can be adjusted after ignition, the burner enters a working state without waiting, and the burner can be extinguished and waited when working is intermittent, so that the burning efficiency is improved, the energy waste is reduced, and the technical effects of energy conservation and emission reduction are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas burner technical field, especially a kind of preheating premix gas burner. BACKGROUND

[0002] Gas combustion technology is widely used in industrial and civil fields, and gas burner is a kind of equipment that mixes gas and air according to certain proportion and produces flame by ignition device;Its working principle mainly includes three processes of gas and air mixing, ignition and flame propagation.

[0003] Traditional gas burner has fire, and the fire needs to be ignited before use, and the main fire can be started after the fire burns for about 15 seconds, and the fire needs to be burned all the time in actual work to ensure that the main fire can be started at any time;Thus, it causes huge energy waste, also reduces the service life of ignition and extinguishing protection system;Secondly, traditional gas burner is mostly single ignition, single extinguishing protection system, and the ignition success rate is low;In addition, traditional gas burner cannot mix and preheat gas and air sufficiently, which leads to insufficient combustion, causes a lot of energy waste, and also affects work efficiency and performance;If premix system is equipped separately, material cost and labor cost will increase. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of preheating premix gas burner, to solve the technical problems existing in prior art.

[0005] In order to achieve the above-mentioned utility model purposes, the utility model adopts the technical scheme that:

[0006] A kind of preheating premix gas burner, comprising: burner outer shell, connecting shell body arranged at the top of the burner outer shell body and fire stabilizing ring arranged at the top of the connecting shell body;The burner inner shell is arranged at the middle position in the burner outer shell;The flame divider is arranged in the connecting shell body;The burner inner shell is hollow, and small fire tube is arranged at the middle position of the bottom, which penetrates the flame divider;The small fire tube is provided with ignition induction needle on both sides, and one end of the ignition induction needle penetrates the side wall of the burner inner shell and extends to the inside of the flame divider;The burner inner shell is provided with protective cap at the top, a plurality of through holes are formed in the protective cap, and the through holes are arranged in annular array.

[0007] Further, the burner outer shell is hollow, which forms preheating premix chamber with the burner inner shell, and the preheating premix chamber is communicated with the air inlet pipe arranged on one side of the burner outer shell.

[0008] Further, the burner inner shell is sleeved with a spoiler, the spoiler is arranged along the longitudinal direction of the burner inner shell, and the spoiler is at least two groups and is matched with the working size of the preheating and premixing chamber.

[0009] Further, the flame divider bottom is provided with a flame divider base which is clamped with the inner wall of the connecting shell and is provided with a plurality of air holes; the flame divider top is provided with a flame divider gas outlet plate which is provided with a plurality of flame outlets and is provided with a preset working interval with the protective cap.

[0010] Further, the small fire tube top is provided with a small fire cap which is provided with a plurality of small holes and is provided with a preset working interval with the protective cap.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The utility model realizes the technical effect of no fire, through the setting of the small fire tube, the flame divider, the stable fire ring, the protective cap, the air inlet pipe and the preheating and premixing chamber, gas can be mixed with air fully and preheated, and after ignition, the required firepower can be adjusted and the working state is entered, without waiting, and safety extinguishing and waiting can be realized during the working interval, the combustion efficiency is improved, and energy waste is reduced.

[0013] (2) The utility model is provided with the ignition induction needle, so that the device has double ignition and double extinguishing systems, the success rate and reliability of ignition are increased, and the stove can be ignited and started rapidly and stably.

[0014] (3) The utility model is provided with the flame divider, the flame divider gas outlet plate and the flame outlet, the traditional whole flame is changed into a plurality of independent small flames, the heat efficiency is improved, the emission of nitrogen oxides is reduced, and the technical effect of energy saving and emission reduction is realized.

[0015] (4) The utility model is provided with the preheating and premixing chamber, so that gas and air can be mixed and preheated fully, a premixing system is not needed, the combustion efficiency is improved, and the material and labor costs are reduced.

[0016] (5) The utility model is provided with the preheating and premixing gas mixture reaching 300 DEG, the flame temperature is increased to 150 DEG, compared with the traditional gas burner, the energy-saving gas is 10% to 15%, the preheating gas greatly reduces the temperature of the burner itself, reduces the ablation damage, and improves the service life of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the utility model;

[0018] Figure 2 It is the main view cross section structure schematic diagram of the utility model;

[0019] Figure 3 It is the cross section schematic diagram of the utility model;

[0020] Figure 4 It is the plan view of the utility model;

[0021] In the figure: 1, burner outer shell body;2, connecting shell;3, steady fire circle;4, flame divider;5, protective cap;6, flame divider air outlet plate;7, spoiler;8, ignition induction needle;9, small fire tube;10, small fire cap;11, air inlet pipe;12, flame divider base;13, burner inner shell body;14, flame outlet;15, preheating premixing chamber;16, through hole. DETAILED DESCRIPTION

[0022] In order to make the content of the utility model more easily be clearly understood, the following will combine the drawings in the utility model embodiment, and the technical scheme in the utility model embodiment is clearly and completely described. Same parts are indicated with same reference numerals. It needs to be explained that, the words "front", "back", "left", "right", "up" and "down" in the following description refer to the direction in the drawing, and the words "inner" and "outer" refer to the direction towards or away from the geometric center of a specific part.

[0023] As Figures 1-4As shown, the preheating premixed gas burner provided in the embodiment includes a burner outer shell 1, a connecting shell 2 arranged at the top of the burner outer shell 1, and a fire stabilizing ring 3 arranged at the top of the connecting shell 2; a burner inner shell 13 is arranged at the middle position inside the burner outer shell 1; the burner inner shell 13 is in a cylindrical shape, the top of which is in a concave shape, and the burner inner shell 13 and the burner outer shell 1 are integrally cast; through the structural advantages of the burner outer shell 1, the ablation effect is reduced, and the service life of the device is improved; a flame divider 4 is arranged in the connecting shell 2, the arrangement of the flame divider 4 changes the traditional whole flame into multiple and independent small flames, so that the heat is more evenly distributed to the heating area, the heat efficiency is improved, and the emission of pollutants such as carbon monoxide and nitrogen oxides is reduced, thereby realizing the technical effect of energy saving and emission reduction; the burner inner shell 13 is hollow inside, and a small fire tube 9 is arranged at the middle position of the bottom, which penetrates the flame divider 4; the small fire tube 9 has the characteristics of precise fire control, high efficiency and energy saving, rapid ignition, and flameout protection; under the condition of only a small amount of heat output, the use of the small fire tube can avoid excessive consumption of gas to achieve the purpose of energy saving, and when the device needs to be temporarily stopped, the small fire tube can more easily achieve safe extinguishing, reducing the risk of gas leakage; the small fire tube 9 is provided with an ignition induction needle 8 on both sides, one end of the ignition induction needle 8 penetrates the side wall of the burner inner shell 13 and extends into the inside of the flame divider 4; the ignition induction needle 8 can ignite both the burner inner shell 13 and the inside of the flame divider 4; through the arrangement of the double ignition induction needles 8, the probability and reliability of successful ignition are increased, and even if one of the ignition induction needles 8 fails or the ignition effect is poor, the other ignition induction needle 8 can still successfully ignite, ensuring that the device can be quickly and reliably ignited and started; when in use, the ignition device outside is started to drive the ignition induction needle 8 to work, the ignition induction needle 8 ignites the mixed gas of gas and air in the inside of the flame divider 4, and ensures that the combustion area in the inside of the flame divider 4 can be quickly and stably combusted; a protective cap 5 is arranged at the top of the burner inner shell 13, a small fire cap 10 is arranged at the top of the small fire tube 9, a plurality of small holes are formed in the small fire cap 10, and a predetermined working distance is left between the small fire cap 10 and the protective cap 5; the small fire tube 9 is in communication with the auxiliary gas pipeline outside, and is equipped with a predetermined air supplementing machine to supplement air for the small fire tube 9, thereby forming a small fire; a plurality of through holes 16 are formed in the protective cap 5, and the through holes 16 are arranged in an annular array; the protective cap 5 can stabilize the flame and control its shape and size, so that the heat is more evenly distributed to avoid local overheating.

[0024] As Figures 2-3As shown, the burner outer shell 1 is hollow inside, which forms a preheating premixing chamber 15 with the burner inner shell 13, the preheating premixing chamber 15 can preheat the mixed gas to 300°, the flame temperature is increased by 150°, compared with the traditional burner, it can save 15% of energy consumption; the preheating premixing chamber 15 is communicated with the air inlet pipe 11 arranged on one side of the burner outer shell 1; the burner inner shell 13 is sleeved with the spoiler 7, the spoiler 7 is arranged along the longitudinal direction of the burner inner shell 13, and the spoiler 7 is at least two groups, and is matched with the working size of the preheating premixing chamber 15; the gas and air in the mixed gas can be fully mixed in the preheating premixing chamber 15 by the spoiler 7, so that the combustion is more sufficient, the energy waste caused by incomplete combustion is reduced, the energy utilization rate is improved, and the energy consumption is saved; the air inlet pipe 11 is communicated with the main gas pipeline outside, so that the mixed gas in the main gas pipeline enters the preheating premixing chamber 15, and enters the flame divider 4 through the spoiler 7 twice, forms a large fire, also known as a main fire; the large fire needs a small fire to ignite it.

[0025] As shown in the figure, Figures 2-3 The bottom of the flame divider 4 is provided with a flame divider base 12, which is clamped with the inner wall of the connecting shell 2, and a plurality of air holes are formed in the bottom, which can provide conditions for the mixed gas to enter the flame divider 4; the top of the flame divider 4 is provided with a flame divider gas outlet plate 6, the flame divider gas outlet plate 6 is provided with a flame outlet 14, the flame outlet 14 is in multiple groups, and a predetermined working distance is left between the flame outlet 14 and the protective cap 5; the setting of the flame divider gas outlet plate 6 and the flame outlet 14 changes the traditional whole flame into a plurality of independent small flames, improves the thermal efficiency and reduces the emission of nitrogen oxides, so as to realize the technical effect of energy saving and emission reduction.

[0026] The working principle is that when in use, the operator opens the electromagnetic valve, a part of the mixed gas enters the small fire pipe 9 through the auxiliary gas pipe, and a part of the mixed gas enters the preheating premixing chamber 15 through the main gas pipe; at this time, the small fire pipe 9 introduces the mixed gas into the burner inner shell 13 through the small hole, and at the same time, the ignition device is started, the ignition sensing needle 8 is started, the mixed gas in the burner inner shell 13 is ignited, a small fire is formed, and the device is started; the ignited gas is transmitted to the flame divider 4 through the through hole of the protective cap 5, so as to ignite the mixed gas in the flame divider 4, and ignite the large fire.

[0027] The above only describes the preferred embodiment of the present utility model patent, and does not limit the present utility model patent, any modification, equivalent replacement and improvement made within the spirit and principle of the present utility model patent should be included in the protection scope of the present utility model patent.

Claims

1. A preheated premix gas burner, characterized by: The utility model relates to a kind of portable gas stove, including: Burner outer shell (1), connecting shell (2) being arranged at the top of the burner outer shell (1) and fire ring (3) being arranged at the top of the connecting shell (2);Burner inner shell (13) is equipped in the middle position inside the burner outer shell (1);The burner inner shell (13) is hollow inside, and small fire tube (9) is equipped in the middle position of bottom, which penetrates the flame divider (4);Small fire tube (9) is equipped with ignition induction needle (8) on both sides, one end of the ignition induction needle (8) on one side penetrates the side wall of the burner inner shell (13) and extends to the inside of the flame divider (4);The burner inner shell (13) is equipped with protective cap (5) on top, a plurality of through holes (16) are formed in the protective cap (5), and the through holes (16) are arranged in annular array.

2. The preheated premix gas burner according to claim 1, characterized in that: The burner outer shell (1) is hollow inside, which forms preheating premixing chamber (15) with the burner inner shell (13), and the preheating premixing chamber (15) is communicated with air inlet pipe (11) arranged on one side of the burner outer shell (1).

3. The preheated premix gas burner according to claim 2, characterized in that: The burner inner shell (13) is sleeved with spoiler (7), the spoiler (7) is arranged along the longitudinal direction of the burner inner shell (13), and the spoiler (7) is at least two groups, and is adapted to the working size of the preheating premixing chamber (15).

4. The preheated premix gas burner according to claim 1, characterized in that: The flame divider (4) has flame divider base (12) at bottom, the flame divider base (12) is clamped with the inner wall of the connecting shell (2), and a plurality of air holes are formed at bottom;The flame divider (4) is equipped with flame divider gas outlet plate (6) on top, the flame divider gas outlet plate (6) is equipped with flame outlet (14), the flame outlet (14) is multiple groups, and there is preset working interval between the flame divider gas outlet plate (6) and the protective cap (5).

5. The preheated premix gas burner according to claim 1, characterized in that: Small fire cap (10) is equipped on the top of the small fire tube (9), a plurality of small holes are formed in the small fire cap (10), and there is preset working interval between the small fire cap (10) and the protective cap (5).

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