Low-heating-value gas burner

Abstract

The utility model discloses a low-calorific-value gas burner which comprises a burner body, a gas inlet pipe and a gas outlet pipe. The first ventilation pipe is mounted on one side of the burner body; and the mixed gas pipe is arranged at one end of the first breather pipe. The gas stove has the beneficial effects that the first gas through pipe, the exhaust hole, the second gas through pipe, the gas outlet cover and the gas outlet are arranged, so that gas in the first gas through pipe enters the gas outlet cover through the second gas through pipe and is dispersedly discharged through the gas outlet; by arranging a connecting gas pipe, an annular ventilation box and a communicating gas pipe, high-temperature flue gas is introduced into the connecting gas pipe and enters a gas spraying pipe through the communicating gas pipe to be discharged, and the combustion efficiency is improved. The high-temperature flue gas serves as combustion-supporting gas to support combustion of the low-heating-value fuel gas, the combustion efficiency is improved, energy utilization is achieved, and pollutant emission is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a low calorific value gas burner field, concretely is a low calorific value gas burner. BACKGROUND

[0002] Low calorific value gas burner refers to the combustion device of gas fuel that is adapted to burn low calorific value between 650kca l / Nm 3~5000kca l / Nm 3 The low calorific value gas is usually derived from the gasification process of solid fuel such as coal or coke, or tail gas of chemical production line, etc., the existing low calorific value gas burner has the problem of poor mixing effect in the mixing process of gas and air, which is mainly embodied in uneven distribution of gas and air, leading to insufficient combustion, low thermal efficiency and increased emission pollutants. SUMMARY

[0003] The utility model discloses a low calorific value gas burner to solve the problem of poor mixing effect in the mixing process of gas and air of the existing low calorific value gas burner in the background art, which is mainly embodied in uneven distribution of gas and air, leading to insufficient combustion, low thermal efficiency and increased emission pollutants.

[0004] To achieve the above object, the utility model provides the following technical scheme: a low calorific value gas burner, comprising:

[0005] Burner body;

[0006] No. 1 air pipe, no. 1 air pipe is installed at one side of burner body;

[0007] Mixed gas pipe, mixed gas pipe is arranged at one end of no. 1 air pipe, the inside of mixed gas pipe is equidistantly provided with a plurality of inner fixed supports, the inside of inner fixed support is fixedly connected with no. 1 gas pipe, the inside of burner body is fixedly connected with gas delivery pipe, one end of gas delivery pipe is fixedly connected with no. 1 gas pipe, the bottom end of gas delivery pipe is fixedly connected with gas inlet pipe;

[0008] Inner support frame, inner support frame is equidistantly arranged at the inside of no. 1 air pipe, the inside of inner support frame is fixedly connected with annular air tank, one side of annular air tank is fixedly connected with communication air pipe, and communication air pipe is fixedly connected with inner fixed support;

[0009] Exhaust hole, exhaust hole is equidistantly arranged in the inside of no. 1 gas pipe.

[0010] As one preferred scheme of the utility model, the inside of the first gas pipe is fixedly connected with the second gas pipe, one end of the second gas pipe is fixedly connected with the gas outlet cover, and multiple gas outlets are equidistantly arranged on one side of the gas outlet cover.

[0011] As one preferred scheme of the utility model, the inside of the mixed gas pipe is provided with a cyclone, and the inside of the mixed gas pipe is installed with the igniter.

[0012] As one preferred scheme of the utility model, the top of the annular air tank is fixedly connected with the connecting gas pipe, and the connecting gas pipe is fixedly connected with the first air pipe.

[0013] As one preferred scheme of the utility model, the inside of the burner body is fixedly connected with the second combustion air inlet pipe, one end of the second combustion air inlet pipe is fixedly connected with the gas outlet pipe, and the gas outlet pipe is fixedly connected with the burner body.

[0014] As one preferred scheme of the utility model, one end of the communication gas pipe is fixedly connected with the air injection pipe.

[0015] Compared with the prior art, the utility model has the advantages that the first gas pipe, the exhaust hole, the second gas pipe, the gas outlet cover and the gas outlet are arranged, the gas in the first gas pipe enters the gas outlet cover through the second gas pipe, is dispersed and discharged through the gas outlet, is dispersed and discharged through the exhaust hole arranged in the first gas pipe, is fully mixed and discharged, combustion is sufficient, and the heat efficiency is high, the connecting gas pipe, the annular air tank and the communication gas pipe are arranged, high-temperature flue gas is introduced into the connecting gas pipe, the high-temperature flue gas enters the air injection pipe through the communication gas pipe and is discharged, the high-temperature flue gas is used as combustion-supporting gas to support the combustion of low-calorific-value gas, the combustion efficiency is improved, energy utilization is realized, and pollutant discharge is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an internal structure schematic view of the utility model;

[0017] Figure 2 It is the utility model Figure 1 It is an enlarged view of A in the utility model;

[0018] Figure 3 It is a right view of the annular air tank of the utility model.

[0019] In the figure: 1, burner body; 2, a gas pipe; 3, a gas pipe; 4, inner support frame; 5, annular ventilation box; 6, connecting gas pipe; 7, inner fixed support; 8, communication gas pipe; 9, jet pipe; 10, exhaust hole; 11, second gas pipe; 12, gas outlet cover; 13, gas outlet; 14, cyclone; 15, gas delivery pipe; 16, gas inlet pipe; 17, secondary combustion air inlet pipe; 18, gas outlet pipe; 19, mixed gas pipe; 20, ignition gun. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1 to 3 The utility model provides a kind of technical scheme: a low heat value gas burner, comprising: burner body 1;One gas pipe 2 is installed on the side of burner body 1 by bolt;Mixed gas pipe 19 is fixedly connected at one end of one gas pipe 2, and multiple inner fixed supports 7 are fixedly connected with the inside of mixed gas pipe 19 at equal intervals, and one gas pipe 3 is fixedly connected with the inside of inner fixed support 7, and the inside of burner body 1 is fixedly connected with gas delivery pipe 15, and one end of gas delivery pipe 15 is fixedly connected with one gas pipe 3, and the bottom end of gas delivery pipe 15 is fixedly connected with gas inlet pipe 16;Inner support frame 4 is fixedly connected with the inside of one gas pipe 2 at equal intervals, and annular ventilation box 5 is fixedly connected with the inside of inner support frame 4, and communication gas pipe 8 is fixedly connected with one side of annular ventilation box 5, and communication gas pipe 8 is fixedly connected with inner fixed support 7;Exhaust hole 10 is equidistantly opened in the inside of one gas pipe 3, and the gas in one gas pipe 3 is dispersed and discharged through exhaust hole 10, and is fully mixed with high-temperature flue gas and air.

[0022] Wherein, the inside of one gas pipe 3 is fixedly connected with second gas pipe 11 by welding, and the end of second gas pipe 11 is fixedly connected with gas outlet cover 12, and multiple gas outlets 13 are equidistantly opened on one side of gas outlet cover 12, and a part of gas enters gas outlet cover 12 through second gas pipe 11 and is discharged through gas outlet 13, so that the gas is dispersed and discharged.

[0023] Wherein, the inside of the mixed gas pipe 19 is provided with a cyclone 14, the inside of the mixed gas pipe 19 is provided with an ignition gun 20, the cyclone 14 generates a rotating airflow in the low calorific value gas burner, so that the gas and air are mixed more fully in the combustion chamber, which helps to improve the stability and efficiency of the combustion process, and the ignition gun 20 mainly includes an ignition coil, an ignition switch, an ignition plug and a high-voltage wire key component, when these components work together, enough high-voltage current can be generated to ignite the combustible gas.

[0024] Wherein, the top of the annular ventilation box 5 is fixedly connected with a connecting gas pipe 6, the connecting gas pipe 6 is fixedly connected with the first ventilation pipe 2, and high-temperature flue gas is introduced into the annular ventilation box 5 through the connecting gas pipe 6.

[0025] Wherein, the inside of the burner body 1 is fixedly connected with a second combustion-supporting air inlet pipe 17, one end of the second combustion-supporting air inlet pipe 17 is fixedly connected with an air outlet pipe 18, the air outlet pipe 18 is fixedly connected with the burner body 1, and air is introduced into the burner body 1 through the second combustion-supporting air inlet pipe 17 and the air outlet pipe 18, and the mixed gas is subjected to combustion treatment.

[0026] Wherein, one end of the communication gas pipe 8 is welded with a jet pipe 9, and the high-temperature flue gas in the annular ventilation box 5 and the communication gas pipe 8 is sprayed out through the jet pipe 9, which is used as combustion-supporting gas to support the combustion of low-calorific value gas, thereby improving the combustion efficiency, realizing energy utilization and reducing pollutant emission.

[0027] Specifically, in use, air is introduced into the burner body 1 through the second combustion-supporting air inlet pipe 17 and the air outlet pipe 18, and gas is introduced into the gas conveying pipe 15 and the first gas inlet pipe 3 through the gas inlet pipe 16, a part of the gas enters the air outlet cover 12 through the second gas inlet pipe 11 and is discharged through the air outlet 13, and the other part is dispersedly discharged through each air outlet hole 10 formed in the first gas inlet pipe 3, high-temperature flue gas is introduced into the connecting gas pipe 6, the high-temperature flue gas enters the jet pipe 9 through the communication gas pipe 8 and is discharged, the high-temperature flue gas is used as combustion-supporting gas to support the combustion of low-calorific value gas, thereby improving the combustion efficiency, realizing energy utilization and reducing pollutant emission, and then the high-temperature flue gas is discharged together through the cyclone 14 and is ignited by the ignition gun 20 for combustion treatment.

[0028] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implying a number of the indicated technical features, so the features with "first", "second", "third", "fourth" can be explicitly or implicitly include at least one of the features.

[0030] In the present application, unless otherwise expressly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0031] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A low-calorific-value gas burner, characterized in that, include: Combustion body (1); No. 1 vent pipe (2) is installed on one side of the burner body (1); A mixing pipe (19) is provided at one end of a first gas pipe (2). Multiple internal fixed supports (7) are provided at equal intervals on the inner side of the mixing pipe (19). A first gas pipe (3) is fixedly connected to the inner side of the internal fixed supports (7). A gas delivery pipe (15) is fixedly connected inside the burner body (1). One end of the gas delivery pipe (15) is fixedly connected to the first gas pipe (3). A gas inlet pipe (16) is fixedly connected to the bottom end of the gas delivery pipe (15). An inner support frame (4) is equidistantly arranged on the inner side of the first ventilation pipe (2). An annular ventilation box (5) is fixedly connected to the inner side of the inner support frame (4). A connecting air pipe (8) is symmetrically fixedly connected to one side of the annular ventilation box (5). The connecting air pipe (8) is fixedly connected to the inner fixed bracket (7). Exhaust holes (10) are equidistantly located inside the No. 1 gas pipe (3).

2. A low-calorific-value gas burner according to claim 1, characterized in that: The No. 1 gas pipe (3) is fixedly connected to the No. 2 gas pipe (11), and one end of the No. 2 gas pipe (11) is fixedly connected to the gas outlet hood (12). Multiple gas outlets (13) are equidistantly opened on one side of the gas outlet hood (12).

3. A low-calorific-value gas burner according to claim 1, characterized in that: A cyclone separator (14) is provided on the inner side of the mixing pipe (19), and an ignition gun (20) is installed inside the mixing pipe (19).

4. A low-calorific-value gas burner according to claim 1, characterized in that: The top of the annular ventilation box (5) is fixedly connected to a connecting air pipe (6), which is fixedly connected to the first ventilation pipe (2).

5. A low-calorific-value gas burner according to claim 1, characterized in that: The burner body (1) is fixedly connected to a second combustion air inlet pipe (17), and one end of the second combustion air inlet pipe (17) is fixedly connected to an outlet pipe (18), which is fixedly connected to the burner body (1).

6. A low-calorific-value gas burner according to claim 1, characterized in that: One end of the connecting air pipe (8) is fixedly connected to a jet pipe (9).

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