Heat storage combustion device with direct air heat storage and natural gas preheating

Abstract

The utility model discloses a heat storage combustion device with direct air heat storage and natural gas preheating, which relates to the technical field of heat storage combustion devices and comprises a base, a heat storage cavity and a preheating cavity, the heat storage cavity and the preheating cavity are fixedly arranged at the top of the base, a combustor is fixedly arranged at the top of the base, and air pipes are communicated among the heat storage cavity, the preheating cavity and the combustor. The outer wall of the preheating cavity communicates with a natural gas pipe, an air inlet is formed in the outer wall of the heat storage cavity, a vertical plate is fixedly arranged at the top of the base, a rotating rod is rotationally arranged at the upper end of the interior of the vertical plate in a penetrating mode, and a rotating plate is fixedly arranged at the rear end of the rotating rod; by means of the heat storage cavity, the preheating cavity, the natural gas pipe, the vertical plate, the rotating rod, the rotating plate, the filter screen, the gas inlet and the sealing ring, air entering the heat storage cavity can be filtered in advance, and the situation that after impurities in the air are mixed with natural gas, the combustion efficiency is affected by the impurities is avoided as much as possible; and the combustion sufficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of regenerative combustion devices, in particular to a regenerative combustion device for direct air heat storage and natural gas preheating. Background Technique

[0002] When the current regenerative combustion device is in use, it improves the combustion efficiency, reduces energy waste, and reduces emissions by directly storing heat in the air and preheating natural gas.

[0003] After retrieval, the patent document with the publication number CN216281467U discloses an efficient regenerative combustion device. In this combustion device, the piston is set as a telescopic structure. When continuously transmitting heat, the cylinder starts to drive the piston to expand and contract inside the main conveying bin. The piston drives the heat inside the combustion chamber and the transfer heat storage bin to be transmitted to one end of the external pipeline. When transmitting heat, the temperature at one end of the main conveying bin close to the external pipeline decreases, and the telescopic piston continuously diffuses and extends the heat outward, ensuring that the external pipeline has enough energy to be transmitted outward. And by setting side rings on both sides of the piston, the side rings increase the contact area with the surface of the main conveying bin, increase the heat transmission area, and improve the heat conduction efficiency. And by setting heat conduction rings at both ends of the partition board, the heat conduction rings also play a role in accelerating heat conduction.

[0004] However, when the above device is in use, air is directly introduced into the combustion device, but there will be a lot of dust and impurities inside without filtration. When the dust and impurities are mixed with the preheated natural gas, it will affect the combustion efficiency of natural gas and reduce the combustion effect. Content of the Utility Model

[0005] In view of the problems existing in the above-mentioned existing regenerative combustion device for direct air heat storage and natural gas preheating, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a regenerative combustion device for direct air heat storage and natural gas preheating, which solves the problem that when air is directly introduced into the combustion device and the dust and impurities in it are mixed with the preheated natural gas, it will affect the combustion efficiency of natural gas.

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

[0008] A regenerative combustion device for direct air heat storage and natural gas preheating, including a base and a heat storage chamber and a preheating chamber fixedly arranged on the top of the base. A burner is fixedly arranged on the top of the base. An air pipe is communicated between the heat storage chamber and the preheating chamber and the burner. Air valves are fixedly sleeved on the pipe walls of the two air pipes.

[0009] The outer wall of the preheating chamber is communicatively provided with a natural gas pipe. An air inlet is formed in the outer wall of the heat storage chamber. A vertical plate is fixedly provided at the top of the base. A rotating rod is rotatably inserted through the upper end of the vertical plate. A rotating plate is fixedly provided at the rear end of the rotating rod. Two symmetrically arranged through holes are formed in the rotating plate. A filter screen is arranged in the through hole, and the filter screen covers the outside of the through hole.

[0010] Preferably, a plurality of slots arranged in a circumferential and symmetric manner are formed in the outer wall of the filter screen. A plug rod is inserted into the slot. A fixing rod is slidably inserted through the plug rod. The fixing rod is fixedly connected to the rotating plate, and a first spring is sleeved on the rod wall. Two ends of the first spring are respectively fixedly connected to the plug rod and the fixing rod.

[0011] Preferably, the outer ends of the plurality of plug rods inserted into the slots are arranged in an inclined surface.

[0012] Preferably, a pressing ring is in contact with the outer walls of the plurality of plug rods. The pressing ring is sleeved on the outside of the filter screen. A plurality of circumferentially and symmetrically arranged support rods are slidably inserted through the inner wall of the pressing ring. The support rods are fixedly connected to the rotating plate, and a second spring is sleeved on the rod wall. Two ends of the second spring are respectively fixedly connected to the pressing ring and the support rod.

[0013] Further, a sealing ring is fixedly provided on the back side of the filter screen. The sealing ring is in contact and cooperation with the outer wall of the heat storage chamber.

[0014] Preferably, a groove is formed at the end of the rotating rod. Two symmetrically arranged arc-shaped plates are fixedly provided at the upper end of the outer wall of the vertical plate. A positioning hole is formed in the arc-shaped plate. Two symmetrically arranged positioning rods are slidably inserted through the inner side of the groove, and the positioning rods are inserted into the positioning holes.

[0015] Preferably, mounting rods are fixedly provided on both sides of the inner wall of the groove. A connecting plate is rotatably sleeved on the rod wall of the mounting rod. A strip-shaped hole is formed in the connecting plate. A push rod is fixedly inserted through the positioning rod, and the push rod is slidably arranged in the strip-shaped hole. A torsion spring is sleeved on the rod wall of the mounting rod. Two ends of the torsion spring are respectively fixedly connected to the mounting rod and the connecting plate.

[0016] Preferably, two symmetrically arranged pull rings are fixedly provided on the outer surface of the filter screen.

[0017] Preferably, the fixing rod is arranged in an L shape.

[0018] Preferably, the pressing ring is in contact and cooperation with the inclined surface of the outer wall of the plug rod.

[0019] In the above technical solution, the technical effects and advantages provided by the present utility model are:

[0020] 1. The utility model, through the provided heat storage cavity, preheating cavity, natural gas pipe, vertical plate, rotating rod, rotating plate, filter screen, air inlet and sealing ring, can pre-filter the air entering the interior of the heat storage cavity, and as much as possible avoid the influence of impurities in the air on the combustion efficiency after mixing with natural gas, thus improving the sufficiency of combustion.

[0021] 2. The utility model, through the provided filter screen, inserting rod, inserting slot, fixing rod, first spring, pressing ring, supporting rod and second spring, can quickly switch and use two filter screens, ensure the continuity of air passage, and at the same time can conveniently replace the filter screen, thus improving the stability of air passage. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model, and those of ordinary skill in the art can also obtain other drawings according to these drawings.

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

[0024] Figure 2 It is of the present utility model Figure 1 Enlarged schematic view of part A;

[0025] Figure 3 It is of the present utility model Figure 1 Enlarged schematic view of part B;

[0026] Figure 4 It is a schematic side view of the inserting rod and the fixing rod of the present utility model;

[0027] Figure 5 It is a three-dimensional structural diagram of the filter net of the present utility model;

[0028] Figure 6 It is a three-dimensional structural diagram of the heat storage cavity of the present utility model.

[0029] Explanation of the reference numerals in the drawings:

[0030] 1. Base; 2. Heat storage cavity; 3. Preheating cavity; 4. Burner; 5. Air pipe; 6. Air valve; 7. Natural gas pipe; 8. Air inlet; 9. Vertical plate; 10. Rotating rod; 11. Rotating plate; 12. Filter screen; 13. Inserting slot; 14. Inserting rod; 15. Fixing rod; 16. First spring; 17. Pressing ring; 18. Supporting rod; 19. Second spring; 20. Sealing ring; 21. Arc-shaped plate; 22. Positioning rod; 23. Mounting rod; 24. Connecting plate; 25. Push rod; 26. Torsion spring; 27. Pulling ring. Detailed Description of the Embodiment

[0031] To enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] An embodiment of the present utility model discloses a regenerative combustion device for direct air heat storage and natural gas preheating.

[0033] Embodiment 1

[0034] The present utility model provides a regenerative combustion device for direct air heat storage and natural gas preheating as shown in Figures 1-6 Figure 1. The regenerative combustion device for direct air heat storage and natural gas preheating includes a base 1, a heat storage chamber 2 and a preheating chamber 3 fixedly arranged on the top of the base 1. A burner 4 is fixedly arranged on the top of the base 1. An air pipe 5 is communicated between the heat storage chamber 2 and the preheating chamber 3 and the burner 4. Air valves 6 are fixedly sleeved on the pipe walls of the two air pipes 5;

[0035] A natural gas pipe 7 is communicated with the outer wall of the preheating chamber 3. An air inlet 8 is opened on the outer wall of the heat storage chamber 2. A vertical plate 9 is fixedly arranged on the top of the base 1. A rotating rod 10 is rotatably penetrated through the upper end inside the vertical plate 9. A rotating plate 11 is fixedly arranged at the rear end of the rotating rod 10. Two symmetrically arranged through holes are opened inside the rotating plate 11. A filter screen 12 is arranged inside the through holes. The filter screen 12 covers the outside of the through holes. A sealing ring 20 is fixedly arranged on the back side of the filter screen 12. The sealing ring 20 is in contact and cooperation with the outer wall of the heat storage chamber 2. Two symmetrically arranged pull rings 27 are fixedly arranged on the outer surface of the filter screen 12.

[0036] Before the combustion work is carried out, air is introduced into the heat storage chamber 2 through the air inlet 8, and natural gas is introduced into the preheating chamber 3 through the natural gas pipe 7 for preheating. Subsequently, the multiple air valves 6 are opened, so that the high-temperature air and natural gas can enter the burner 4 through the air pipe 5 for mixing and effective combustion. Before the air enters the inside of the heat storage chamber 2, the sealing ring 20 is in contact with the outer wall of the heat storage chamber 2. At this time, the air can enter the heat storage chamber 2 through the filter screen 12. Through the filter screen 12, the impurities in the air can be cleaned, ensuring that after the high-temperature air and natural gas are mixed, it will not affect the effective combustion of natural gas. During the continuous introduction of air, through the rotational cooperation of the rotating rod 10 and the vertical plate 9, the positions of the two filter screens 12 can be switched, ensuring that the air filtration and introduction process continues. At the same time, during the air introduction process, the used filter screen 12 can be quickly replaced, improving the convenience of use of the device.

[0037] Embodiment 2

[0038] On the basis of Embodiment 1, Embodiment 2 is to be able to quickly disassemble and assemble the used filter screen 12 after the positions of the two filter screens 12 are switched, as shown in Figures 1-2 and Figures 4-5As shown in the figure, a plurality of slots 13 are provided on the outer wall of the filter screen 12 in a circumferentially symmetric arrangement. An insertion rod 14 is inserted into the inside of the slot 13. The outer sides of one ends of the plurality of insertion rods 14 inserted into the inside of the slot 13 are arranged in an inclined plane. A fixing rod 15 is slidably inserted through the inside of the insertion rod 14. The fixing rod 15 is arranged in an L shape and is fixedly connected to the rotating plate 11. A first spring 16 is sleeved on the rod wall. The two ends of the first spring 16 are respectively fixedly connected to the insertion rod 14 and the fixing rod 15. A pressing ring 17 is jointly contacted with the outer walls of the plurality of insertion rods 14. The pressing ring 17 is sleeved on the outside of the filter screen 12. A plurality of support rods 18 arranged in a circumferentially symmetric arrangement are slidably inserted through the inner wall of the pressing ring 17. The support rods 18 are fixedly connected to the rotating plate 11. A second spring 19 is sleeved on the rod wall. The two ends of the second spring 19 are respectively fixedly connected to the pressing ring 17 and the support rod 18. The pressing ring 17 is in contact and cooperation with the inclined plane of the outer wall of the insertion rod 14.

[0039] When the filter screen 12 needs to be disassembled, the pressing ring 17 can be pressed under the support of the support rod 18 and the second spring 19, so that the pressing ring 17 contacts the inclined planes of the plurality of insertion rods 14 at the same time, and the plurality of insertion rods 14 slide along the fixing rod 15 after being pressed through the inclined plane, and the first spring 16 is squeezed. As the pressing ring 17 is continuously pressed, the plurality of insertion rods 14 are pulled out from the slots 13 on the outer wall of the filter screen 12. At this time, the filter screen 12 can be taken out from the through hole, and a new filter screen 12 can be replaced. After the filter screen 12 is replaced, only the pressing ring 17 needs to be loosened, and under the elastic recovery of the plurality of springs, the insertion rod 14 is inserted into the slot 13 again.

[0040] Embodiment 3

[0041] On the basis of Embodiment 1, in order to switch the positions of the two filter screens 12 in Embodiment 3, as Figure 1 and Figure 3 shown, a groove is provided at the end of the rotating rod 10. Two symmetrically arranged arc-shaped plates 21 are fixedly provided at the upper end of the outer wall of the vertical plate 9. A positioning hole is provided inside the arc-shaped plate 21. Two symmetrically arranged positioning rods 22 are slidably inserted through the inner side of the groove. The positioning rods 22 are inserted into the positioning holes. Installation rods 23 are fixedly provided on both sides of the inner wall of the groove. A connecting plate 24 is rotatably sleeved on the rod wall of the installation rod 23. A strip-shaped hole is provided inside the connecting plate 24. A push rod 25 is fixedly inserted through the inside of the positioning rod 22. The push rod 25 is slidably arranged in the strip-shaped hole. A torsion spring 26 is sleeved on the rod wall of the installation rod 23. The two ends of the torsion spring 26 are respectively fixedly connected to the installation rod 23 and the connecting plate 24.

[0042] When it is necessary to switch between the two filter meshes 12, the two push rods 25 can be pressed and moved closer. At this time, the positioning rod 22 moves away from the positioning hole and pushes the connecting plate 24, causing the push rod 25 to slide in the strip-shaped hole. At the same time, the connecting plate 24 rotates under the support of the mounting rod 23 and twists the torsion spring 26. Then, the rotating rod 10 can be rotated, so that the rotating plate 11 drives the two filter meshes 12 to change positions. After the position-changing operation is completed, the push rod 25 is released. Under the torque recovery of the two torsion springs 26, the connecting plate 24 pushes the push rod 25, and the positioning rod 22 is inserted into the positioning hole, thereby completing the positioning of the rotating plate 11 and the filter mesh 12.

Claims

1. A heat storage combustion device with direct air heat storage and natural gas preheating, comprising a base (1) and a heat storage chamber (2) and a preheating chamber (3) fixedly arranged on the top of the base (1), characterized in that: A burner (4) is fixedly provided on the top of the base (1); an air pipe (5) is provided between the heat storage chamber (2) and the preheating chamber (3) and the burner (4); and air valves (6) are fixedly sleeved on the pipe walls of the two air pipes (5); The outer wall of the preheating chamber (3) is connected to a natural gas pipe (7), the outer wall of the heat storage chamber (2) is provided with an air inlet (8), a vertical plate (9) is fixedly provided on the top of the base (1), a rotating rod (10) is rotatably penetrated through the upper end of the vertical plate (9), a rotating plate (11) is fixedly provided at the rear end of the rotating rod (10), the rotating plate (11) is provided with two symmetrical through holes in the interior, a filter screen (12) is provided in the through hole, and the filter screen (12) is covered on the outside of the through hole.

2. The heat storage combustion device with direct air heat storage and natural gas preheating according to claim 1 is characterized in that: The outer wall of the filter screen (12) is provided with a plurality of slots (13) arranged symmetrically around the outside, an insertion rod (14) is inserted into the inside of the slot (13), a fixing rod (15) is slidably inserted into the inside of the insertion rod (14), the fixing rod (15) is fixedly connected to the rotating plate (11), and a first spring (16) is sleeved on the rod wall, and the two ends of the first spring (16) are respectively fixedly connected to the insertion rod (14) and the fixing rod (15).

3. The heat storage combustion device with direct air heat storage and natural gas preheating according to claim 2 is characterized in that: The outer sides of one end of the plurality of insertion rods (14) inserted into the slots (13) are arranged in an inclined surface.

4. The heat storage combustion device with direct air heat storage and natural gas preheating according to claim 2 is characterized in that: The outer walls of the plurality of insertion rods (14) are in common contact with each other and are provided with a pressure ring (17), the pressure ring (17) is sleeved on the outer side of the filter screen (12), the inner wall of the pressure ring (17) is slidably penetrated with a plurality of support rods (18) symmetrically arranged around, the support rods (18) are fixedly connected to the rotating plate (11), and a second spring (19) is sleeved on the rod wall, and the two ends of the second spring (19) are respectively fixedly connected to the pressure ring (17) and the support rod (18).

5. The heat storage combustion device with direct air heat storage and natural gas preheating according to claim 1 is characterized in that: A sealing ring (20) is fixedly provided on the back side of the filter screen (12), and the sealing ring (20) is in contact with and fits with the outer wall of the heat storage chamber (2).

6. The heat storage combustion device with direct air heat storage and natural gas preheating according to claim 1 is characterized in that: A groove is provided at the end of the rotating rod (10), two symmetrically arranged arc plates (21) are fixedly provided at the upper end of the outer wall of the vertical plate (9), a positioning hole is provided inside the arc plate (21), and two symmetrically arranged positioning rods (22) are slidably penetrated through the inner side of the groove, and the positioning rods (22) are inserted into the positioning holes.

7. The heat storage combustion device with direct air heat storage and natural gas preheating according to claim 6 is characterized in that: Both sides of the inner wall of the groove are fixedly provided with mounting rods (23), the rod wall of the mounting rod (23) is rotatably sleeved with a connecting plate (24), a strip hole is opened inside the connecting plate (24), a push rod (25) is fixedly penetrated inside the positioning rod (22), the push rod (25) is slidably arranged in the strip hole, the rod wall of the mounting rod (23) is sleeved with a torsion spring (26), and the two ends of the torsion spring (26) are respectively fixedly connected to the mounting rod (23) and the connecting plate (24).

8. The heat storage combustion device with direct air heat storage and natural gas preheating according to claim 1 is characterized in that: Two symmetrically arranged pull rings (27) are fixedly provided on the outer surface of the filter screen (12).

9. The heat storage combustion device with direct air heat storage and natural gas preheating according to claim 2, characterized in that: The fixing rod (15) is arranged in an L shape.

10. The heat storage combustion device with direct air heat storage and natural gas preheating according to claim 4, characterized in that: The pressure ring (17) is in contact with and fits with the outer wall inclined surface of the insertion rod (14).

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