Dual-fuel heat accumulating type burner system

Abstract

The utility model discloses a dual-fuel heat accumulating type burner system, which relates to the technical field of burners, and comprises a first fuel pipe and a second fuel pipe, the close ends of the first fuel pipe and the second fuel pipe are jointly communicated with an air inlet pipe, and a heat accumulating cavity is fixedly embedded in the inner wall of the first fuel pipe. The sides, away from each other, of the first fuel pipe and the second fuel pipe communicate with air pipes, the pipe walls of the air pipes are fixedly sleeved with air valves, rotating rods are rotationally arranged on the side portions of the first fuel pipe and the second fuel pipe, the rod walls of the rotating rods are fixedly sleeved with air guide plates, and the outer walls of the air guide plates are in contact fit with the inner wall of the first fuel pipe. Sealing plates are fixedly arranged on the inner wall of the first fuel pipe and the inner wall of the second fuel pipe correspondingly, and air outlet holes communicating with the air guide plates are formed in the sealing plates. The gas guide plates in the two fuel pipes can be rotated and switched, so that the first fuel pipe and the second fuel pipe work separately, only a single inlet is needed to be matched with a burner, and the arrangement complexity of the burner is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a dual-fuel regenerative burner system. Background Art

[0002] The regenerative burner recovers heat from the kiln flue gas through regenerative balls or regenerative bodies to preheat the air, thereby achieving the purpose of alternating combustion and uniform heating. It is a highly efficient and energy-saving combustion equipment.

[0003] The patent document with announcement number CN207316911 U discloses a dual-fuel regenerative burner system, which can realize online switching of high and low calorific value gases. All valves are connected to the control room. By judging the calorific value of the gas, the switching can be completed quickly without replacing any equipment and affecting production. At the same time, the high calorific value gas nozzle and the outer ring air nozzle are arranged between the low calorific value gas nozzle and the main air nozzle. The main air can be supplied to the furnace from the low calorific value gas nozzle or the main air nozzle to ensure that the main air obtains sufficient heat storage and the high calorific value gas can be effectively mixed with the main air for combustion.

[0004] However, when the above-mentioned burner system is used to introduce dual fuels, multiple feed ports are required to cooperate with the burner, resulting in the need to open multiple connecting holes on the burner when the burner and the burner are coordinated, and the burner needs to be modified, which reduces the convenience of using the burner. Utility Model Content

[0005] In view of the above-mentioned problems existing in the existing dual-fuel regenerative burner system, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a dual-fuel regenerative burner system, which solves the problem that the burner system is provided with multiple combustion inlets and cannot be quickly coordinated with the single air inlet of the burner.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A dual-fuel regenerative burner system includes a first fuel pipe and a second fuel pipe. The first fuel pipe and the second fuel pipe are connected to each other at one end thereof and are provided with an air inlet pipe. A heat storage cavity is fixedly embedded in the inner wall of the first fuel pipe. The first fuel pipe and the second fuel pipe are connected to each other at the other end thereof and are provided with an air pipe. An air valve is fixedly sleeved on the wall of the air pipe.

[0009] The first fuel pipe and the second fuel pipe are both rotatably provided with a rotating rod on the side, and an air guide plate is fixedly sleeved on the rod wall of the rotating rod. The outer wall of the air guide plate contacts and cooperates with the inner wall of the first fuel pipe. The inner walls of the first fuel pipe and the second fuel pipe are both fixedly provided with a sealing plate, and the sealing plate has an air outlet hole in communication with the air guide plate.

[0010] The rod walls of the two rotating rods are provided with a synchronous drive switching mechanism.

[0011] Preferably, an air guide hole is provided inside the air guide plate, and the air guide hole is arranged in coordination with the air outlet hole.

[0012] Preferably, the synchronous drive switching mechanism includes a support tube, which is fixedly connected to the outer wall of the intake pipe and has a support rod slidingly inserted therein, and both ends of the rod wall of the support rod are fixedly sleeved with a first rack and a second rack, and the rod wall of the rotating rod and the outer wall of the valve stem of the air valve are respectively fixedly sleeved with a first gear and a second gear, and the first rack and the second rack are respectively arranged to cooperate with the first gear and the second gear.

[0013] Preferably, a positioning rod is slidably penetrated through the tube wall of the support tube, and a plurality of positioning grooves arranged at intervals are opened on the rod wall of the support tube. One end of the positioning rod is inserted into the positioning groove, and a spring is sleeved on the rod wall of the positioning rod. The two ends of the spring are fixedly connected to the positioning rod and the support tube respectively.

[0014] Furthermore, the positioning rod is an L-shaped positioning rod.

[0015] Preferably, a guide groove is formed on the rod wall of the support rod, two guide plates are slidably inserted into the guide groove, and the guide plates are fixed to the outer wall of the air intake pipe.

[0016] Preferably, the guide plate is arranged in an L shape.

[0017] Preferably, a sealing gasket is fixedly provided on the side wall of the sealing plate, and the sealing gasket is in contact with and fits with the outer wall of the air guide plate.

[0018] Preferably, a pull rod is fixedly provided on the outer wall of the first rack.

[0019] Preferably, the outer wall of the air pipe is provided with a thread, and an internal threaded pipe is provided on the threaded sleeve, and a filter is fixedly provided at the pipe mouth of the internal threaded pipe.

[0020] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0021] 1. Through the first fuel pipe, the second fuel pipe, the air inlet pipe, the air pipe, the rotating rod, the air guide plate, the air guide hole, the sealing plate, the air inlet and the air valve and the synchronous drive switching mechanism, the two air guide plates can be rotated and switched, so that the first fuel pipe and the second fuel pipe work separately, and only a single inlet is required to cooperate with the burner, reducing the complexity of the burner setting.

[0022] 2. Through the synchronous drive switching mechanism, support rod, support tube, positioning rod, spring and positioning groove, the position of the air guide plate can be determined after the two air guide plates rotate and switch, so that the gas inside the fuel pipe and the external air can be stably mixed and enter the burner for combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0025] Figure 3 is a cross-sectional view of the air guide plate;

[0026] Figure 4 for Figure 1 An enlarged schematic diagram of part B;

[0027] Figure 5 Schematic diagram of the three-dimensional structure of the support rod.

[0028] Description of reference numerals:

[0029] 1. First fuel pipe; 2. Second fuel pipe; 3. Air inlet pipe; 4. Heat storage chamber; 5. Air pipe; 6. Air valve; 7. Rotating rod; 8. Air guide plate; 9. Sealing plate; 10. Air outlet; 11. Air guide hole; 12. Support pipe; 13. Support rod; 14. First rack; 15. Second rack; 16. First gear; 17. Second gear; 18. Positioning rod; 19. Positioning groove; 20. Spring; 21. Guide plate; 22. Sealing gasket; 23. Pull rod; 24. Internally threaded pipe; 25. Filter. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] The embodiment of the utility model discloses a dual-fuel regenerative burner system.

[0032] Example 1

[0033] The utility model provides Figure 1-5The dual-fuel regenerative burner system shown includes a first fuel pipe 1 and a second fuel pipe 2. The first fuel pipe 1 and the second fuel pipe 2 are connected to each other at one end thereof and are provided with an air inlet pipe 3. A heat storage chamber 4 is fixedly embedded in the inner wall of the first fuel pipe 1. The first fuel pipe 1 and the second fuel pipe 2 are connected to each other at the other end thereof and are provided with an air pipe 5. An air valve 6 is fixedly sleeved on the pipe wall of the air pipe 5. The outer wall of the air pipe 5 is threaded and is provided with an internally threaded pipe 24 threadedly sleeved thereon. A filter screen 25 is fixedly installed at the mouth of the internally threaded pipe 24.

[0034] The sides of the first fuel pipe 1 and the second fuel pipe 2 are both rotatably provided with a rotating rod 7, and the rod wall of the rotating rod 7 is fixedly sleeved with an air guide plate 8, the outer wall of the air guide plate 8 is in contact with the inner wall of the first fuel pipe 1, and the inner walls of the first fuel pipe 1 and the second fuel pipe 2 are both fixedly provided with a sealing plate 9, and the side wall of the sealing plate 9 is fixedly provided with a sealing gasket 22, which is in contact with the outer wall of the air guide plate 8. The interior of the sealing plate 9 is provided with an air outlet hole 10 connected to the air guide plate 8, and the interior of the air guide plate 8 is provided with an air guide hole 11, and the air guide hole 11 is provided in cooperation with the air outlet hole 10.

[0035] When using the burner system, the air inlet pipe 3 can be connected to the burner, and then the two rotating rods 7 can be rotated to rotate the two guide plates 8. At this time, the air guide hole 11 in the air guide pipe 8 inside the first fuel pipe 1 is set vertically and cooperates with the air outlet hole 10, and the air pipe 5 is open, while the air guide hole 11 in the air guide plate 8 inside the second fuel pipe 2 is set horizontally. At this time, the first fuel can enter the air inlet pipe 3 through the air guide hole 11 and the air outlet hole 10 and enter the burner for combustion. At the same time, the outside air can enter the air pipe 5 through the filter 25 when entering and enter the air inlet pipe 3 at the same time.

[0036] When the second fuel needs to be introduced, the two rotating rods 7 can be rotated in the opposite direction to swap the two air guide plates 8. At this time, the lower air guide hole 11 is set vertically, and the upper air guide hole 1 is set horizontally. At this time, the second fuel can enter the air inlet pipe 3 through the air guide hole 11 and the air outlet hole 10 in the lower air guide plate 8, thereby improving the convenience of zoning transportation of multiple fuels and improving the use effect of the burner system.

[0037] Example 2

[0038] In order to simultaneously drive two rotating rods 7 to rotate, the embodiment 2 is based on the embodiment 1. Figure 1-2 and Figure 4As shown, the rod walls of the two rotating rods 7 are provided with a synchronous drive switching mechanism, which includes a support tube 12. The support tube 12 is fixedly connected to the outer wall of the intake pipe 3, and a support rod 13 is slidably passed through the interior. The rod walls of the support rod 13 are fixedly sleeved with a first rack 14 and a second rack 15 at both ends, and a pull rod 23 is fixedly provided on the outer wall of the first rack 14. The rod wall of the rotating rod 7 and the outer wall of the valve stem of the air valve 6 are respectively fixedly sleeved with a first gear 16 and a second gear 17. The first rack 14 and the second rack 15 are respectively matched with the first gear 16 and the second gear 17.

[0039] When the two rotating rods 7 are driven synchronously, the support rod 13 can be pushed by the pull rod 23, so that the support rod 13 drives the multiple first racks 14 and second racks 15 to move. At this time, under the separate engagement of the first rack 14 and the first gear 16 and the second rack 15 and the second gear 17, the two rotating rods 7 rotate at the same time, and the rotation and replacement of the two air guide plates 8 can be completed, so that multiple fuels can enter the burner separately, thereby improving the convenience of using the burner.

[0040] Example 3

[0041] Example 3 is based on Example 1-2 in order to fix the positions of the support rod 13 and the air guide plate 8 after the support rod 13 moves, as shown in FIG. Figure 2 and Figure 5 As shown, a positioning rod 18 is slidably passed through the wall of the support tube 12, and the positioning rod 18 is an L-shaped positioning rod. The rod wall of the support rod 13 is provided with a plurality of positioning grooves 19 arranged at intervals, and one end of the positioning rod 18 is inserted into the positioning groove 19. The rod wall of the positioning rod 18 is sleeved with a spring 20, and the two ends of the spring 20 are respectively fixedly connected to the positioning rod 18 and the support tube 12. The rod wall of the support rod 13 is provided with a guide groove, and two guide plates 21 are slidably passed through the guide groove. The guide plate 21 is L-shaped and fixed to the outer wall of the intake pipe 3.

[0042] Before pushing the support rod 13, the positioning rod 18 can be pulled out of the positioning groove 19. At this time, the spring 20 is compressed, and then the support rod 13 is pushed, so that the support rod 13 can be limited by the sliding of the guide plate 21 and the guide groove when sliding in the support tube 12, so that the support rod 13 can move stably. When the two air guide plates 8 are driven and the positions are determined, the positioning rod 18 is released, and the positioning rod 18 can be inserted into the positioning groove 19 again under the elastic force of the spring 20 to fix the positions of the support rod 13 and the air guide plate 8 to ensure stable fuel entry.

Claims

1. A dual-fuel regenerative burner system comprising a first fuel pipe (1) and a second fuel pipe (2), characterized in that: The first fuel pipe (1) and the second fuel pipe (2) are connected to each other at one end and are provided with an air inlet pipe (3); a heat storage chamber (4) is fixedly embedded in the inner wall of the first fuel pipe (1); and the first fuel pipe (1) and the second fuel pipe (2) are connected to each other at the other side and are provided with an air pipe (5); and an air valve (6) is fixedly sleeved on the pipe wall of the air pipe (5); The sides of the first fuel pipe (1) and the second fuel pipe (2) are both rotatably provided with a rotating rod (7), the rod wall of the rotating rod (7) is fixedly sleeved with an air guide plate (8), the outer wall of the air guide plate (8) contacts and cooperates with the inner wall of the first fuel pipe (1), the inner walls of the first fuel pipe (1) and the second fuel pipe (2) are both fixedly provided with a sealing plate (9), and the interior of the sealing plate (9) is provided with an air outlet (10) that is communicated with the air guide plate (8); The rod walls of the two rotating rods (7) are provided with synchronous drive switching mechanisms.

2. The dual fuel regenerative burner system according to claim 1, characterized in that: An air guide hole (11) is provided inside the air guide plate (8), and the air guide hole (11) is arranged in coordination with the air outlet hole (10).

3. The dual fuel regenerative burner system according to claim 1, characterized in that: The synchronous drive switching mechanism comprises a support tube (12), the support tube (12) is fixedly connected to the outer wall of the intake pipe (3), and a support rod (13) is slidably penetrated therein, a first rack (14) and a second rack (15) are fixedly sleeved on both ends of the rod wall of the support rod (13), a first gear (16) and a second gear (17) are fixedly sleeved on the rod wall of the rotating rod (7) and the outer wall of the valve stem of the air valve (6), respectively, and the first rack (14) and the second rack (15) are respectively matched with the first gear (16) and the second gear (17).

4. The dual fuel regenerative burner system according to claim 3, characterized in that: A positioning rod (18) is slidably provided on the wall of the support tube (12), a plurality of positioning grooves (19) arranged at intervals are provided on the wall of the support rod (13), one end of the positioning rod (18) is inserted into the positioning groove (19), a spring (20) is sleeved on the wall of the positioning rod (18), and both ends of the spring (20) are fixedly connected to the positioning rod (18) and the support tube (12), respectively.

5. The dual fuel regenerative burner system according to claim 4, characterized in that: The positioning rod (18) is an L-shaped positioning rod.

6. The dual fuel regenerative burner system according to claim 3, characterized in that: A guide groove is provided on the rod wall of the support rod (13), two guide plates (21) are slidably inserted into the guide groove, and the guide plates (21) are fixed to the outer wall of the air intake pipe (3).

7. The dual fuel regenerative burner system according to claim 6, characterized in that: The guide plate (21) is arranged in an L shape.

8. The dual fuel regenerative burner system according to claim 1, characterized in that: A sealing gasket (22) is fixedly provided on the side wall of the sealing plate (9), and the sealing gasket (22) is in contact with and fits the outer wall of the air guide plate (8).

9. The dual fuel regenerative burner system according to claim 3, characterized in that: A pull rod (23) is fixedly provided on the outer wall of the first rack (14).

10. The dual fuel regenerative burner system according to claim 1, characterized in that: The outer wall of the air pipe (5) is provided with a thread, and an internal threaded pipe (24) is provided on the threaded sleeve, and a filter screen (25) is fixedly provided at the pipe mouth of the internal threaded pipe (24).

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