Energy-saving dual-fuel heat accumulating type burner

Abstract

The invention relates to the technical field of heat accumulating type burners, in particular to an energy-saving dual-fuel heat accumulating type burner which comprises a main pipeline and an inner pipeline, the inner pipeline and the main pipeline are coaxially arranged, a feeding pipe is fixedly arranged on the outer wall of the main pipeline, and a set of dual-channel feeding ports is formed by the feeding pipe and a feeding port of the inner pipeline. By means of the feeding pipe arranged on the side wall of the main pipeline, when a worker uses the device, two different kinds of gas are conveyed into the device through the inner pipeline and the feeding pipe, at the moment, the worker rotates and adjusts the reversing valve, so that the main pipeline is communicated with the first pipeline, and then the gas is ignited through the igniter; at the moment, heat generated by combustion gas is conveyed into a gas outlet pipe through a second pipeline, the heat in the second pipeline is absorbed and stored through a heat accumulator in the conveying process, and meanwhile, stirring blades rotationally arranged in a reaction box can rotate under blowing of airflow, so that gas in the reaction box is mixed more uniformly; the combustion efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of regenerative burners, in particular to an energy-saving dual-fuel regenerative burner. Background Art

[0002] In industrial furnace technology, there are two types of devices that use the waste heat of furnace exhaust gas to heat coal gas or combustion air. One is a heat exchanger, and the other is a regenerator. A regenerative burner is a burner that recovers heat from kiln flue gas through regenerative balls to preheat the air to achieve alternating combustion and uniform heating. The regenerative burners currently used are mainly single-fuel burners, and mainly use air heat storage. However, during use, single-fuel burners face the problem of stopping the furnace to replace the burner, resulting in the need to frequently adjust the device when using different fuels.

[0003] In order to solve the above-mentioned problem, the public announcement number CN220269376U has disclosed a dual-fuel heat storage burner, including a burner body, wherein a gas spray hole and a natural gas spray hole are respectively arranged inside the burner body, and a heat storage body is arranged inside the gas spray hole and the natural gas spray hole. The gas spray hole is connected to a gas pipeline through the heat storage body, and the natural gas spray hole is connected to a natural gas pipeline through the heat storage body. An air spray hole is arranged inside the burner body and between the gas spray hole and the natural gas spray hole. An air dispersion structure is arranged at the air spray hole near the spraying end of the burner body, and a heat conduction component is arranged on the outer wall of the middle part of the air spray hole.

[0004] However, when the above-mentioned disclosed device is in use, the double regenerative burner is not conducive to the application of low calorific value gas such as blast furnace gas. Since low-temperature reversing cannot be achieved, a large amount of high calorific value gas is required at low temperatures to achieve ignition and furnace baking. For this purpose, special smoke exhaust ducts and high calorific value gas pipelines need to be set up, which increases the investment and complexity of pipeline layout. Summary of the invention

[0005] Based on the above-mentioned problems existing in the prior art, the problem to be solved by the present application is that when the disclosed device is in use, the double regenerative burner is not conducive to the application of low calorific value gas such as blast furnace gas. Since low-temperature reversing cannot be achieved, a large amount of high calorific value gas is required at low temperature to achieve ignition and furnace baking. For this purpose, it is necessary to set up a special smoke exhaust duct and high calorific value gas pipeline, which increases the investment and complexity of pipeline layout.

[0006] The technical solution adopted by the present application to solve the technical problem is: an energy-saving dual-fuel regenerative burner, comprising a main pipe and an inner pipe, the inner pipe and the main pipe are coaxially arranged, a feed pipe is fixedly arranged on the outer wall of the main pipe, and the feed pipe and the feed port of the inner pipe form a set of double-channel feed ports;

[0007] A regulating component, the regulating component comprises a reversing valve fixedly arranged on the main pipeline, the reversing valve is fixedly connected with pipeline 1, pipeline 2 and an air outlet pipe, and pipeline 1 and pipeline 2 are arranged in a mirror image, and collection boxes are fixedly arranged at the ends of pipeline 1 and pipeline 2, and heat storage bodies are fixedly arranged in the two collection boxes;

[0008] The reaction mechanism comprises a reaction box fixedly connected between the two collecting boxes, the reaction box and the collecting boxes are communicated with each other through a connecting pipe, and an igniter for igniting gas is fixedly arranged in the reaction box.

[0009] Preferably, a flange is fixedly provided on the outer peripheral surface of the main pipeline, and a threaded hole is opened on the side wall of the flange.

[0010] Preferably, a flamethrower is fixedly provided at the connecting pipe where the pipeline 1 and the pipeline 2 are connected. The flamethrower is in a prism shape with a large bottom and a small top, and a plurality of air outlets with equal apertures are provided on the flamethrower, and the plurality of air outlets are arranged in a circle.

[0011] Preferably, the main pipeline, pipeline one, pipeline two and the air outlet pipe are arranged in a cross shape as a whole, the main pipeline is adjacent to pipeline one and pipeline two, and the main pipeline, pipeline one, pipeline two and the air outlet pipe are connected through a reversing valve.

[0012] Preferably, two mutually parallel brackets are fixedly arranged in the reaction box, and a guide plate is fixedly arranged between the two brackets, and a guide groove is opened in the guide plate, a stirring blade is slidably arranged in the guide groove, and a control component for controlling the position of the stirring blade is arranged on the reversing valve.

[0013] Preferably, the control component includes a rotating shaft fixedly arranged in the reversing valve, a wire take-up drum is fixedly arranged on one end of the rotating shaft close to the collecting box, a slide groove is opened in the collecting box, a slider is slidably arranged in the slide groove, the slider is rotationally connected to the stirring blade, a connecting wire is fixedly arranged on the outer peripheral surface of the slider, and the other end of the connecting wire is fixedly connected to the wire take-up drum.

[0014] Preferably, a wire outlet is provided on the outer wall of the reaction box, and the wire outlet is located at the other end of the slide groove.

[0015] Preferably, the diameter of the sliding block is not less than the width of the guiding groove, and a spring is fixedly provided between the sliding block and the bracket.

[0016] Preferably, a connecting plate is fixedly provided on the side wall of the sliding block, and a scraper is fixedly provided on the connecting plate, and the scraper is in contact with the inner wall of the collecting box.

[0017] Preferably, a filter is fixedly arranged at the pipe opening of the air outlet pipe.

[0018] The beneficial effects of the present application are as follows: an energy-saving dual-fuel heat storage burner provided by the present application, through a feed pipe arranged on the side wall of the main pipe, enables the staff to transport two different types of gases into the device through the inner pipe and the feed pipe when using the device. At this time, the staff rotates and adjusts the reversing valve to connect the main pipe with pipe one. At this time, the mixed gas in the pipe is discharged into the reaction box in the device through the air outlet, and then the gas is ignited by the igniter. At this time, the heat generated by the combustion gas is transported to the air outlet pipe through pipe two, and the heat in pipe two is absorbed and stored by the heat storage body during the transportation process. At the same time, the stirring blades arranged in the reaction box can rotate under the blowing of the airflow to make the gas in the reaction box mixed more evenly, thereby improving the combustion efficiency.

[0019] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the reversing valve of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of the main pipeline of the present invention;

[0023] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0024] Figure 5 It is a front view structural schematic diagram of the present invention;

[0025] Figure 6 It is a schematic diagram of the flame nozzle structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the internal structure of the reaction box of the present invention;

[0027] Figure 8 It is a schematic diagram of the local structure of the present invention.

[0028] In the figure: 1. main pipeline; 11. feed pipe; 12. flange; 13. threaded hole; 2. inner pipeline; 3. reversing valve; 31. pipeline 1; 32. pipeline 2; 321. outlet pipe; 33. collecting box; 331. igniter; 34. heat storage body; 4. reaction box; 5. connecting pipe; 51. flame nozzle; 52. outlet; 6. bracket; 61. guide plate; 62. guide groove; 63. stirring blade; 7. rotating shaft; 71. take-up reel; 72. slide groove; 73. slider; 74. connecting wire; 75. spring; 8. connecting plate; 81. scraper; 9. filter. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0031] Reference Figure 1-Figure 3 , an energy-saving dual-fuel regenerative burner, comprising a main pipe 1 and an inner pipe 2, wherein the inner pipe 2 is coaxially arranged with the main pipe 1, a feed pipe 11 is fixedly arranged on the outer wall of the main pipe 1, and the feed pipe 11 and the feed port of the inner pipe 2 form a set of double-channel feed ports;

[0032] The regulating component includes a reversing valve 3 fixedly arranged on the main pipeline 1, a pipeline 1 31, a pipeline 2 32 and an air outlet pipe 321 are fixedly connected to the reversing valve 3, and the pipeline 1 31 and the pipeline 2 32 are mirror-set, and a collecting box 33 is fixedly arranged at the end of the pipeline 1 31 and the pipeline 2 32, and a heat storage body 34 is fixedly arranged in the two collecting boxes 33;

[0033] The reaction mechanism includes a reaction box 4 fixedly connected between two collecting boxes 33 . The reaction box 4 is connected to the collecting boxes 33 via a connecting tube 5 , and an igniter 331 for igniting the gas is fixedly arranged in the reaction box 4 .

[0034] Reference Figure 1 , Figure 4 and Figure 5A flange 12 is fixedly provided on the outer circumferential surface of the main pipeline 1, and a threaded hole 13 is opened on the side wall of the flange 12. The flange 12 provided on the main pipeline 1 facilitates the workers to connect the device to the gas outlet end of the external device, and the threaded holes 13 provided on the flange 12 facilitate the workers to fix the main pipeline 1.

[0035] Reference Figure 4-Figure 6 A flamethrower 51 is fixedly provided at the connecting pipe 5 where the pipeline 1 31 and the pipeline 2 32 are connected. The flamethrower 51 is in a prism shape with a large bottom and a small top, and a plurality of gas outlets 52 with equal apertures are provided on the flamethrower 51, and the plurality of gas outlets 52 are arranged in a circular shape. By setting the flamethrower 51 at the connecting pipe 5 between the pipeline 1 31 and the pipeline 2 32, the gases flowing out through the pipeline 1 31 and the pipeline 2 32 can be evenly mixed, thereby improving the reaction efficiency of the device.

[0036] Reference Figure 1-Figure 3 The main pipeline 1, pipeline 1 31, pipeline 2 32 and outlet pipe 321 are arranged in a cross shape as a whole. The main pipeline 1 is adjacent to pipeline 1 31 and pipeline 2 32, and the main pipeline 1, pipeline 1 31, pipeline 2 32 and outlet pipe 321 are connected through the reversing valve 3. By arranging the main pipeline 1, pipeline 1 31, pipeline 2 32 and outlet pipe 321 in a cross shape as a whole, the reversing valve 3 can control the main pipeline 1 to be connected with pipeline 1 31 and pipeline 2 32 after the device is assembled, ensuring that the heat storage body 34 arranged in the collection box 33 can store the heat generated during the reaction process.

[0037] Reference Figure 5-Figure 7 Two brackets 6 are fixedly arranged in parallel with each other in the reaction box 4, and a guide plate 61 is fixedly arranged between the two brackets 6, and a guide groove 62 is opened in the guide plate 61, and a stirring blade 63 is slidably arranged in the guide groove 62. A control component for controlling the position of the stirring blade 63 is arranged on the reversing valve 3. By setting the guide plate 61 in the reaction box 4, it can be ensured that the stirring blade 63 sliding in the guide groove 62 can stir and mix the gas at the air inlet of the reaction box 4 evenly, thereby improving its combustion efficiency.

[0038] Reference Figure 1 , Figure 7 and Figure 8The control component includes a rotating shaft 7 fixedly arranged in the reversing valve 3, a wire take-up drum 71 is fixedly arranged on one end of the rotating shaft 7 close to the collecting box 33, a slide groove 72 is opened in the collecting box 33, a slider 73 is slidably arranged in the slide groove 72, the slider 73 is rotatably connected to the stirring blade 63, a connecting wire 74 is fixedly arranged on the outer peripheral surface of the slider 73, and the other end of the connecting wire 74 is fixedly connected to the wire take-up drum 71. By setting the rotating shaft 7 on the reversing valve 3, the staff can rotate the reversing valve 3, and the wire take-up drum 71 fixedly arranged on the rotating shaft 7 can reel up the connecting wire 74, so that the slider 73 connected to the other end can move to adjust the position of the stirring blade 63.

[0039] Reference Figure 2-Figure 4 A wire outlet is provided on the outer wall of the reaction box 4, and the wire outlet is located at the other end of the slide groove 72. By setting the wire outlet on the reaction box 4, the connecting wire 74 on the take-up reel 71 is prevented from getting stuck when the staff adjusts the device, thereby ensuring that the device can operate normally.

[0040] Reference Figure 6-Figure 8 The diameter of the slider 73 is not less than the width of the guide groove 62, and a spring 75 is fixedly arranged between the slider 73 and the bracket 6. The slider 73 and the guide groove 62 are arranged to ensure that the slider 73 will not deviate during the movement.

[0041] Reference Figure 6-Figure 8 A connecting plate 8 is fixedly provided on the side wall of the slider 73, and a scraper 81 is fixedly provided on the connecting plate 8. The scraper 81 fits the inner wall of the collection box 33. By means of the connecting plate 8 provided on the slider 73 and the scraper 81 fixedly connected to the connecting plate 8, the scraper 81 can be driven to move during the movement of the slider 73 and the impurities adhered to the inner wall of the collection box 33 can be cleaned.

[0042] Reference Figure 1-Figure 3 A filter 9 is fixedly arranged at the outlet of the gas outlet pipe 321, and the filter 9 arranged at the outlet of the gas outlet pipe 321 is used to filter and purify the gas to be discharged, thereby ensuring that the discharged gas will not pollute the environment.

[0043] The specific scheme is as follows: when using the device, the staff transports two different types of gases into the device through the flange 12 and the feed pipe 11. At this time, the staff rotates and adjusts the threaded hole 13 to connect the main pipeline 1 with the pipeline 1 31. At this time, the mixed gas in the pipeline is discharged into the heat storage body 34 in the device through the outlet 52, and then the gas is ignited by the igniter 331. At this time, the heat generated by the combustion gas is transported to the outlet pipe 321 through the pipeline 2 32, and the heat in the pipeline 2 32 is absorbed and stored by the heat storage body 34 during the transportation process. The flange 12 set on the main pipeline 1 is convenient for the staff to connect the device with the outlet end of the external device, and then by setting The threaded hole 13 on the flange 12 is convenient for the staff to fix the main pipeline 1. The flamethrower 51 arranged at the connecting pipe 5 of pipeline 1 31 and pipeline 2 32 can achieve uniform mixing of the gases flowing out through pipeline 1 31 and pipeline 2 32, thereby improving the reaction efficiency of the device. The guide plate 61 arranged in the reaction box 4 can ensure that the stirring blade 63 sliding in the guide groove 62 can stir and mix the gas at the air inlet of the reaction box 4 evenly, thereby improving its combustion efficiency. When the staff rotates the reversing valve 3, the wire reel 71 fixed on the rotating shaft 7 can reel in the connecting wire 74, so that the slider 73 connected to the other end can move to adjust the position of the stirring blade 63.

[0044] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary, and within the spirit of the present invention, the technical features in the above embodiments or in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0045] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An energy-saving dual-fuel regenerative burner, comprising a main pipe (1) and an inner pipe (2), characterized in that: The inner pipe (2) and the main pipe (1) are coaxially arranged, a feed pipe (11) is fixedly arranged on the outer wall of the main pipe (1), and the feed pipe (11) and the feed port of the inner pipe (2) form a set of double-channel feed ports; A regulating component, the regulating component comprising a reversing valve (3) fixedly arranged on the main pipeline (1), the reversing valve (3) being fixedly connected to a pipeline 1 (31), a pipeline 2 (32) and an air outlet pipe (321), and the pipeline 1 (31) and the pipeline 2 (32) being arranged in a mirror image, a collecting box (33) being fixedly arranged at the end of each of the pipeline 1 (31) and the pipeline 2 (32), and a heat storage body (34) being fixedly arranged in each of the two collecting boxes (33); A reaction mechanism, the reaction mechanism comprising a reaction box (4) fixedly connected between the two collecting boxes (33), the reaction box (4) and the collecting boxes (33) being connected via a connecting pipe (5), and an igniter (331) for igniting gas being fixedly arranged in the reaction box (4).

2. The energy-saving dual-fuel regenerative burner according to claim 1, characterized in that: A flange (12) is fixedly arranged on the outer peripheral surface of the main pipeline (1), and a threaded hole (13) is provided on the side wall of the flange (12).

3. The energy-saving dual-fuel regenerative burner according to claim 1, characterized in that: A flame spray nozzle (51) is fixedly arranged at the connecting pipe (5) connecting the pipeline 1 (31) and the pipeline 2 (32); the flame spray nozzle (51) is arranged in a prism shape with a large bottom and a small top, and a plurality of air outlets (52) with equal apertures are provided on the flame spray nozzle (51), and the plurality of air outlets (52) are arranged in a circular shape.

4. The energy-saving dual-fuel regenerative burner according to claim 1, characterized in that: The main pipeline (1), pipeline one (31), pipeline two (32) and the air outlet pipe (321) are arranged in a cross shape as a whole; the main pipeline (1) is adjacent to the pipeline one (31) and the pipeline two (32); and the main pipeline (1), pipeline one (31), pipeline two (32) and the air outlet pipe (321) are connected via a reversing valve (3).

5. The energy-saving dual-fuel regenerative burner according to claim 1, characterized in that: Two mutually parallel brackets (6) are fixedly arranged in the reaction box (4), and a guide plate (61) is fixedly arranged between the two brackets (6). A guide groove (62) is provided in the guide plate (61), and a stirring blade (63) is slidably arranged in the guide groove (62). A control component for controlling the position of the stirring blade (63) is arranged on the reversing valve (3).

6. The energy-saving dual-fuel regenerative burner according to claim 5, characterized in that: The control assembly comprises a rotating shaft (7) fixedly arranged in the reversing valve (3); a wire take-up drum (71) is fixedly arranged on one end of the rotating shaft (7) close to the collecting box (33); a slide groove (72) is provided in the collecting box (33); a slider (73) is slidably arranged in the slide groove (72); the slider (73) is rotationally connected to the stirring blade (63); a connecting wire (74) is fixedly arranged on the outer peripheral surface of the slider (73); the other end of the connecting wire (74) is fixedly connected to the wire take-up drum (71).

7. The energy-saving dual-fuel regenerative burner according to claim 6, characterized in that: A wire outlet is provided on the outer wall of the reaction box (4), and the wire outlet is located at the other end of the slide groove (72).

8. The energy-saving dual-fuel regenerative burner according to claim 6, characterized in that: The diameter of the sliding block (73) is not less than the width of the guide groove (62), and a spring (75) is fixedly arranged between the sliding block (73) and the bracket (6).

9. The energy-saving dual-fuel regenerative burner according to claim 6, characterized in that: A connecting plate (8) is fixedly provided on the side wall of the sliding block (73), and a scraper (81) is fixedly provided on the connecting plate (8), wherein the scraper (81) is in contact with the inner wall of the collecting box (33).

10. The energy-saving dual-fuel regenerative burner according to claim 1, characterized in that: A filter (9) is fixedly arranged at the pipe opening of the air outlet pipe (321).

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