Steam rotary injection equipment for improving methane conversion rate

Abstract

The embodiment of the utility model provides steam rotary injection equipment for improving the methane conversion rate, and relates to the technical field of methane conversion. The steam rotary injection equipment for improving the methane conversion rate comprises a reactor and a steam injection mechanism in the reactor, the steam injection mechanism comprises a connecting pipe rotationally arranged at the upper end of the reactor, the upper end of the connecting pipe is rotationally connected with a steam pipe, the steam pipe is fixed through a fixing frame, and a flow dividing disc is arranged on the lower side of the connecting pipe; a vertical rod is connected to the lower side of the flow dividing disc, a hollow block is arranged on the lower side of the vertical rod, and two sets of first sliding rails and second sliding rails are arranged on the periphery of the hollow block. Through rotation of the first lead screw and the second lead screw, the multiple sets of spraying pipes slide in the first sliding rail and the second sliding rail, the spraying range of the spraying pipes is adjusted, steam spraying uniformity is promoted, meanwhile, meshing of the first gear and the second gear is combined, the connecting pipe drives the multiple sets of spraying pipes to rotate, and the steam spraying uniformity is further promoted.

Description

Technical Field

[0001] The utility model relates to the technical field of methane conversion, in particular to a steam rotary injection device for improving the methane conversion rate. Background Art

[0002] In order to solve the problem of low methane conversion rate caused by poor separation of hydrogen and methane in the existing process, this paper studies the effects of different temperatures, pressures and concentrations in the reaction on the methane conversion rate to avoid side reactions and chemical deactivation caused by too low or too high temperature. The steam rotary injection technology is adopted, and the circulating gas flow and temperature are precisely controlled to evenly dilute the materials in the reaction and maintain the stable rise and fall of the reaction bed temperature, ultimately achieving efficient methane conversion.

[0003] However, the steam rotary injection technology in the prior art has a limited injection area and cannot cover the entire cross-section of the reactor, resulting in some areas in the catalyst bed not being adequately diluted with steam or temperature controlled. This can cause uneven reaction conditions inside the reactor and affect the methane conversion efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a steam rotary injection device for improving the methane conversion rate, which can avoid the situation in the prior art where the steam rotary injection technology has a limited injection area and is inconvenient to cover the entire cross-section of the reactor, resulting in certain areas in the catalyst bed not being sufficiently diluted with steam or temperature controlled, which will cause the reaction conditions inside the reactor to be uneven, affecting the methane conversion efficiency.

[0005] The utility model provides a steam rotary injection device for improving the methane conversion rate, comprising a reactor and a steam injection mechanism inside the reactor, wherein the steam injection mechanism comprises a connecting pipe rotatably arranged at the upper end of the reactor, the upper end of the connecting pipe is rotatably connected to a steam pipe, the steam pipe is fixed by a fixing frame, a diverter plate is arranged at the lower side of the connecting pipe, a vertical rod is connected to the lower side of the diverter plate, a hollow block is arranged at the lower side of the vertical rod, two groups of slide rails 1 and 2 are respectively arranged around the hollow block, nozzles are slidably connected in the slide rails 1 and 2, and a plurality of nozzles are installed on the nozzles.

[0006] Preferably, the steam outlet of the diverter plate is connected to a plurality of gas pipes, and the gas outlets of the plurality of gas pipes are respectively connected to corresponding nozzles.

[0007] Preferably, the air delivery pipe is fixed to the outside of the vertical rod by a fixing ring, and a margin is left at the connecting end of the air delivery pipe and the nozzle.

[0008] Preferably, a screw rod 1 is rotatably inserted into the two sets of slide rails 1, and two ends of the screw rod 1 are respectively threadedly connected to the two sets of nozzles.

[0009] Preferably, the screw rod 1 is connected to a driven wheel 1 on a rod body inside the hollow block, and a driving wheel 1 driven by a motor is installed inside the hollow block, and the driven wheel 1 is meshed with the driving wheel 1.

[0010] Preferably, a screw rod 2 is rotatably inserted into the two sets of the two slide rails, and two ends of the screw rod 2 are respectively threadedly connected to the other two sets of nozzles.

[0011] Preferably, the second screw rod is located in the hollow block and is connected to a second driven wheel. A second driving wheel driven by a motor is installed inside the hollow block, and the second driven wheel is meshed with the second driving wheel.

[0012] Preferably, the screw rod one is located on the upper side of the screw rod two.

[0013] Preferably, the upper end of the connecting pipe is connected to gear 1, the upper end of the reactor is rotatably provided with gear 2, and the gear 1 is meshed with gear 2.

[0014] Preferably, a blocking cover is provided on the connecting pipe located on a lower side of the gear.

[0015] The utility model provides a steam rotary injection device for improving the methane conversion rate, compared with the prior art:

[0016] 1. The utility model makes multiple groups of nozzles slide in slide rails 1 and 2 by rotating screw rods 1 and 2, thereby adjusting the spray range of the nozzles and promoting the uniformity of steam spraying. Meanwhile, combined with the meshing of gears 1 and 2, the connecting pipe rotates with multiple groups of nozzles, further promoting the uniformity of steam spraying.

[0017] 2. The utility model fixes one end of the gas pipe by means of a fixing ring, and at the same time leaves a margin at the other end of the gas pipe to meet the moving distance of the nozzle and ensure the stability of the gas pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the steam injection mechanism structure of an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the meshing state of gear 1 and gear 2 in an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection state of the gas delivery pipe and the nozzle according to an embodiment of the utility model;

[0023] Figure 5 A schematic top view of a steam injection mechanism according to an embodiment of the utility model;

[0024] Figure 6 The figure is a schematic diagram of the cover structure of an embodiment of the utility model.

[0025] icon:

[0026] 1. Reactor; 2. Steam pipe; 3. Fixed frame; 4. Connecting pipe; 5. Gear 1; 6. Gear 2; 7. Shield; 8. Diverter plate; 9. Fixed ring; 10. Vertical rod; 11. Gas pipe; 12. Nozzle; 13. Nozzle; 14. Hollow block; 15. Slide rail 1; 16. Slide rail 2; 17. Screw rod 1; 18. Screw rod 2; 19. Driven wheel 1; 20. Driving wheel 1; 21. Driven wheel 2; 22. Driving wheel 2. DETAILED DESCRIPTION

[0027] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0028] Please refer to Figures 1 to 6 The embodiment of the utility model provides a steam rotary injection device for improving the methane conversion rate, including a reactor 1 and a steam injection mechanism inside the reactor 1, the steam injection mechanism includes a connecting pipe 4 rotatably arranged at the upper end of the reactor 1, the upper end of the connecting pipe 4 is rotatably connected to the steam pipe 2, and the steam pipe 2 is fixed by a fixing frame 3.

[0029] A gear 1 5 is connected to the upper end of the connecting tube 4, and a gear 2 6 is rotatably provided on the upper end of the reactor 1. The gear 2 6 is driven by a motor, and the gear 1 5 and the gear 2 6 are meshed, so that the gear 1 5 rotates with the connecting tube 4.

[0030] Furthermore, a diverter plate 8 is provided on the lower side of the connecting pipe 4, and the steam outlet of the diverter plate 8 is connected to a plurality of gas pipes 11, and the gas outlets of the plurality of gas pipes 11 are respectively connected to corresponding nozzles 12. After the steam enters the steam pipe 2, the steam enters the diverter plate 8 from the connecting pipe 4, and is transported by the diverter plate 8 into the gas pipe 11, and the gas pipe 11 transports it to the nozzle 12 and is sprayed out by the nozzle 13.

[0031] At the same time, a vertical rod 10 is connected to the lower side of the diverter plate 8, and a hollow block 14 is arranged on the lower side of the vertical rod 10. Two sets of slide rails 15 and slide rails 16 are arranged around the hollow block 14. The slide rails 15 and 16 are slidably connected with nozzles 12, and multiple nozzles 13 are installed on the nozzle 12. The nozzle 12 slides in the slide rails 15 and 16 to adjust the spraying range of the nozzle 12.

[0032] The gas pipe 11 is fixed to the outside of the vertical rod 10 by the fixing ring 9 , and a margin is left between the connecting end of the gas pipe 11 and the nozzle 12 , so when the nozzle 12 moves, the gas pipe 11 can meet the moving distance of the nozzle 12 .

[0033] Furthermore, a screw rod 17 is rotatably passed through the two sets of slide rails 15, and the two ends of the screw rod 17 are respectively threadedly connected to the two sets of nozzles 12. The screw rod 17 is located in the hollow block 14 and is connected to a driven wheel 19. A driving wheel 20 driven by a motor is installed on the inner side of the hollow block 14. The driven wheel 19 and the driving wheel 20 are engaged to rotate the screw rod 17, so that the two sets of nozzles 12 are automatically moved.

[0034] A screw rod 18 is rotatably passed through the two sets of slide rails 16, and the two ends of the screw rod 18 are respectively threadedly connected to the other two sets of nozzles 12, wherein the screw rod 18 is located in the hollow block 14 and is connected to a driven wheel 21, and a driving wheel 22 driven by a motor is installed on the inner side of the hollow block 14, and the driven wheel 21 is meshed with the driving wheel 22, and the rotation of the screw rod 18 causes the two sets of nozzles 12 to move automatically.

[0035] Both the screw rod 17 and the screw rod 2 18 are bidirectional screw rods, that is, the screw threads on the left and right sides are symmetrical with respect to the center and have opposite directions.

[0036] The screw rod 1 17 is located on the upper side of the screw rod 2 18 and does not affect the rotation of the driven wheel 1 19 , the driven wheel 2 21 , the driving wheel 1 20 and the driving wheel 2 22 .

[0037] In addition, a blocking cover 7 is provided on the connecting pipe 4 located at the lower side of the gear 1 5 , and the blocking cover 7 blocks the upper end of the reactor 1 to prevent the steam from floating upward.

[0038] In summary, the steam rotary injection device for improving the methane conversion rate in the embodiment of the utility model has the following working principle: through the rotation of screw 17 and screw 2 18, multiple groups of nozzles 12 are slid in slide rail 15 and slide rail 2 16, the injection range of nozzle 12 is adjusted, and the uniformity of steam injection is promoted. At the same time, combined with the meshing of gear 1 5 and gear 2 6, the connecting pipe 4 rotates with multiple groups of nozzles 12, further promoting the uniformity of steam injection.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steam rotary injection device for improving methane conversion rate, characterized in that: The invention comprises a reactor (1) and a steam injection mechanism inside the reactor (1), wherein the steam injection mechanism comprises a connecting pipe (4) rotatably arranged at the upper end of the reactor (1), the upper end of the connecting pipe (4) being rotatably connected to a steam pipe (2), the steam pipe (2) being fixed by a fixing frame (3), a diverter plate (8) being arranged at the lower side of the connecting pipe (4), a vertical rod (10) being connected at the lower side of the diverter plate (8), a hollow block (14) being arranged at the lower side of the vertical rod (10), two groups of slide rails 1 (15) and slide rails 2 (16) being arranged around the hollow block (14), the slide rails 1 (15) and slide rails 2 (16) being slidably connected to nozzles (12), and a plurality of nozzles (13) being installed on the nozzles (12).

2. The steam rotary injection device for improving methane conversion rate according to claim 1, characterized in that: The steam outlet of the diverter plate (8) is connected to a plurality of gas delivery pipes (11), and the gas outlets of the plurality of gas delivery pipes (11) are respectively connected to corresponding nozzles (12).

3. The steam rotary injection device for improving methane conversion rate according to claim 2 is characterized in that: The air delivery pipe (11) is fixed to the outside of the vertical rod (10) through a fixing ring (9), and a margin is left at the connection end between the air delivery pipe (11) and the nozzle (12).

4. The steam rotary injection device for improving methane conversion rate according to claim 3 is characterized in that: A screw rod (17) is rotatably inserted into the two sets of slide rails (15), and the two ends of the screw rod (17) are respectively threadedly connected to the two sets of nozzles (12).

5. The steam rotary injection device for improving methane conversion rate according to claim 4, characterized in that: The screw rod (17) is located in the hollow block (14) and is connected to a driven wheel (19). A driving wheel (20) driven by a motor is installed inside the hollow block (14). The driven wheel (19) and the driving wheel (20) are meshed.

6. The steam rotary injection device for improving methane conversion rate according to claim 1, characterized in that: A screw rod (18) is rotatably inserted into the two sets of the two slide rails (16), and the two ends of the screw rod (18) are respectively threadedly connected to the other two sets of nozzles (12).

7. The steam rotary injection device for improving methane conversion rate according to claim 6, characterized in that: The second screw rod (18) is connected to a driven wheel (21) on a rod body located inside the hollow block (14), and a driving wheel (22) driven by a motor is installed inside the hollow block (14), and the second driven wheel (21) is meshed with the second driving wheel (22).

8. The steam rotary injection device for improving methane conversion rate according to claim 5, characterized in that: The screw rod 1 (17) is located on the upper side of the screw rod 2 (18).

9. The steam rotary injection device for improving methane conversion rate according to claim 1, characterized in that: The upper end of the connecting pipe (4) is connected to a gear 1 (5), and the upper end of the reactor (1) is rotatably provided with a gear 2 (6), and the gear 1 (5) and the gear 2 (6) are meshed.

10. The steam rotary injection device for improving methane conversion rate according to claim 9, characterized in that: A blocking cover (7) is provided on the connecting pipe (4) located at the lower side of the gear one (5).

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