High-precision gas mixing natural gas-hydrogen blending ratio regulating system

Abstract

This invention discloses a high-precision natural gas-hydrogen blending ratio adjustment system, comprising a natural gas pipeline with a slot on its periphery, a hydrogen pipeline installed at the slot, a first inlet and multiple orifices at the upper and lower ends of the hydrogen pipeline, respectively, and a cylinder rotatably fitted at the middle of the lower end of the hydrogen pipeline. Baffles corresponding to the multiple orifices are installed on the periphery of the cylinder, and a slot is formed inside the lower end of the hydrogen pipeline. This invention, through a designed driving component, can drive multiple teeth to rotate, causing the cylinder to rotate synchronously, thereby driving the multiple baffles to rotate synchronously. This allows for adjustment of the blocking gaps between the multiple orifices as needed, achieving control over the hydrogen flow rate, effectively reducing uneven mixing of natural gas and hydrogen, and improving the blending efficiency of natural gas and hydrogen.

Description

Technical Field

[0001] This utility model relates to the field of gas mixing technology, specifically to a high-precision natural gas-hydrogen blending ratio adjustment system. Background Technology

[0002] Hydrogen-blended natural gas pipelines are the most feasible way to achieve long-distance, large-scale, and efficient hydrogen transportation. Hydrogen-blended natural gas pipelines can make full use of existing natural gas pipeline network facilities. By considering hydrogen blending on the basis of the existing natural gas pipeline network, natural gas and hydrogen are deeply integrated, which is conducive to improving the combustion effect of the mixture and reducing carbon emissions. This will promote the accelerated decarbonization of industries, construction and other fields, thereby promoting the development of a low-carbon economy.

[0003] Due to the molecular weight difference between natural gas and hydrogen, their flow rates differ, potentially leading to uneven mixing and reduced blending efficiency. Therefore, there is an urgent need to design a high-precision natural gas-hydrogen blending ratio control system to address this issue. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision natural gas-hydrogen blending ratio adjustment system to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-precision natural gas-hydrogen blending ratio adjustment system includes a natural gas pipeline with a slot on its periphery and a hydrogen pipeline installed at the slot. The upper and lower ends of the hydrogen pipeline are respectively provided with a first air inlet and multiple orifices. A cylinder is rotatably fitted at the middle of the lower end of the hydrogen pipeline. Baffles corresponding to the multiple orifices are installed on the periphery of the cylinder. A groove is provided inside the lower end of the hydrogen pipeline.

[0007] A column is mounted on the lower axis of the cylinder, and a plurality of teeth are mounted in the middle of the column. The plurality of teeth surround the periphery of the column, and the column is rotatably fitted into the groove. A drive assembly that is connected to the plurality of teeth is installed inside the hydrogen pipeline.

[0008] Furthermore, the natural gas pipeline has a second inlet and an outlet at each end, and two first guide plates corresponding to the second inlet are symmetrically installed inside one end of the natural gas pipeline.

[0009] Furthermore, the lower end of the hydrogen pipeline is equipped with a second guide plate corresponding to the plurality of orifices, a first gap is left between the two first guide plates, and a second gap is left between the first guide plate and the second guide plate.

[0010] Furthermore, both the first guide plates and the second guide plate are inclined, and both ends of the natural gas pipeline and the upper end of the hydrogen pipeline are equipped with connecting flange plates.

[0011] Furthermore, the drive assembly includes a crossbar rotatably engaged with the lower end of the hydrogen pipe, two first bevel gears mounted at both ends of the crossbar, and a vertical rod and a second bevel gear rotatably engaged with the periphery of the hydrogen pipe.

[0012] Furthermore, the drive assembly also includes two third bevel gears mounted at both ends of the vertical rod and a motor mounted around the hydrogen pipeline, with the output end of the motor fixed to the shaft of the second bevel gear.

[0013] Furthermore, one of the first bevel gears meshes with a plurality of the teeth, another of the first bevel gears meshes with another of the third bevel gears, and the second bevel gear meshes with one of the third bevel gears.

[0014] Furthermore, rubber sealing gaskets are installed on the lower side of each of the baffles, the rubber sealing gaskets correspond to the pores, and the multiple rubber sealing gaskets are rotatably fitted on the inner side of the lower end of the hydrogen pipeline.

[0015] In the above technical solution, the high-precision natural gas-hydrogen blending ratio adjustment system provided by this utility model has the following beneficial effects:

[0016] The drive components can rotate multiple teeth, which in turn drive the cylinder to rotate synchronously. This drives the cylinder and causes multiple baffles to rotate synchronously, thereby adjusting the blocking gaps between multiple pores as needed. This allows for control of the hydrogen flow rate, effectively reducing uneven mixing of natural gas and hydrogen and improving the blending efficiency of natural gas and hydrogen. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1This is a structural front view of an embodiment of the high-precision gas-hydrogen blending ratio adjustment system of this utility model.

[0019] Figure 2 This is a schematic diagram of a natural gas pipeline structure provided for an embodiment of the high-precision gas mixing and hydrogen blending ratio adjustment system of this utility model.

[0020] Figure 3 This is a schematic diagram of a hydrogen pipeline structure provided for an embodiment of the high-precision gas mixing and hydrogen blending ratio adjustment system of this utility model.

[0021] Figure 4 A schematic diagram of the pore structure provided for an embodiment of the high-precision gas mixing and hydrogen blending ratio adjustment system of this utility model.

[0022] Figure 5 A schematic diagram of a cylindrical structure provided for an embodiment of the high-precision gas-hydrogen blending ratio adjustment system of this utility model.

[0023] 1. Natural gas pipeline; 2. Groove opening; 3. Hydrogen pipeline; 4. First air inlet; 5. Hole; 6. Cylinder; 7. Baffle; 8. Groove; 9. Column; 10. Tooth; 11. Second air inlet; 12. Air outlet; 13. First guide plate; 14. Second guide plate; 15. First gap; 16. Second gap; 17. Horizontal bar; 18. First bevel gear; 19. Vertical bar; 20. Second bevel gear; 21. Third bevel gear; 22. Motor; 23. Rubber sealing gasket. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown in the embodiment of this utility model, a high-precision natural gas-hydrogen blending ratio adjustment system includes a natural gas pipeline 1, a slot 2 on the periphery of the natural gas pipeline 1, a hydrogen pipeline 3 installed at the slot 2, a first air inlet 4 and multiple orifices 5 respectively at the upper and lower ends of the hydrogen pipeline 3, a cylinder 6 rotatably fitted at the middle of the lower end of the hydrogen pipeline 3, baffles 7 corresponding to the multiple orifices 5 installed on the periphery of the cylinder 6, a groove 8 inside the lower end of the hydrogen pipeline 3, a column 9 installed at the axial center of the lower side of the cylinder 6, multiple teeth 10 installed in the middle of the column 9, the multiple teeth 10 surrounding the periphery of the column 9, the column 9 rotatably fitted in the groove 8, and a drive assembly connected to the multiple teeth 10 is installed inside the hydrogen pipeline 3.

[0026] In this embodiment, a natural gas pipeline 1 is included. A groove 2 is opened on the periphery of the natural gas pipeline 1. A hydrogen pipeline 3 is installed at the groove 2. A first air inlet 4 and multiple holes 5 are opened at the upper and lower ends of the hydrogen pipeline 3, respectively.

[0027] Specifically, the natural gas pipeline 1 has a second inlet 11 and an outlet 12 at both ends, and two first guide plates 13 corresponding to the second inlet 11 are symmetrically installed inside one end of the natural gas pipeline 1.

[0028] Specifically, the lower end of the hydrogen pipeline 3 is equipped with a second guide plate 14 corresponding to multiple orifices 5. A first gap 15 is left between the two first guide plates 13, and a second gap 16 is left between the first guide plate 13 and the second guide plate 14. Through the two first guide plates 13, natural gas can be guided to the bottom of the hydrogen pipeline 3 to prepare for the next step of mixing natural gas and hydrogen.

[0029] Specifically, both first guide plates 13 and second guide plates 14 are inclined, and both ends of the natural gas pipeline 1 and the upper end of the hydrogen pipeline 3 are equipped with connecting flange plates. The multiple connecting flange plates facilitate connection with other transmission gas pipelines.

[0030] In this embodiment, a cylinder 6 is rotatably fitted at the middle of the lower end of the hydrogen pipeline 3, and baffles 7 corresponding to multiple pores 5 are installed on the periphery of the cylinder 6.

[0031] Specifically, rubber sealing gaskets 23 are installed on the lower side of multiple baffles 7. The rubber sealing gaskets 23 correspond to the pores 5, and the multiple rubber sealing gaskets 23 are rotatably fitted on the inner side of the lower end of the hydrogen pipeline 3. By setting the rubber sealing gaskets 23, hydrogen can be prevented from leaking out from the gap between the baffles 7 and the pores 5, thereby achieving the sealing of the pores 5.

[0032] In this embodiment, a groove 8 is provided inside the lower end of the hydrogen pipeline 3, a column 9 is installed on the axial part of the lower side of the cylinder 6, a plurality of teeth 10 are installed in the middle of the column 9, the plurality of teeth 10 surround the periphery of the column 9, the column 9 is rotatably fitted in the groove 8, and a drive assembly that is connected to the plurality of teeth 10 is installed inside the hydrogen pipeline 3.

[0033] Specifically, the drive assembly includes a crossbar 17 rotatably fitted inside the lower end of the hydrogen pipe 3, two first bevel gears 18 mounted at both ends of the crossbar 17, and a vertical rod 19 and a second bevel gear 20 rotatably fitted inside the periphery of the hydrogen pipe 3. The second bevel gear 20 meshes with a third bevel gear 21 to rotate, thereby driving the vertical rod 19 to rotate synchronously. The other third bevel gear 21 meshes with another first bevel gear 18 to rotate, thereby driving the crossbar 17 to rotate synchronously. The first bevel gear 18 meshes with multiple teeth 10 to rotate, thereby driving the cylinder 6 and effectively improving the overall linkage.

[0034] Specifically, the drive assembly also includes two third bevel gears 21 installed at both ends of the vertical rod 19 and a motor 22 installed around the hydrogen pipeline 3. The output end of the motor 22 is fixed to the shaft of the second bevel gear 20.

[0035] Specifically, one first bevel gear 18 meshes with multiple teeth 10, another first bevel gear 18 meshes with another third bevel gear 21, and a second bevel gear 20 meshes with one of its third bevel gears 21.

[0036] Working steps: 1. When it is necessary to adjust the size of multiple holes 5, start the motor 22. The output end of the motor 22 drives the second bevel gear 20 to rotate, so that the second bevel gear 20 meshes with one of the third bevel gears 21 and rotates, thereby driving the vertical rod 19 to rotate synchronously, so that another third bevel gear 21 meshes with another first bevel gear 18 and rotates, thereby driving the horizontal rod 17 to rotate synchronously, so that one of its first bevel gears 18 meshes with multiple teeth 10 and rotates, thereby driving the cylinder 6 to rotate in the groove 8, so that the cylinder 6 drives multiple baffles 7 and multiple rubber sealing gaskets 23 to rotate synchronously, thereby adjusting the blocking gap of multiple holes 5 as needed, and realizing the adjustment of the size of multiple holes 5;

[0037] 2. When it is necessary to blend natural gas and hydrogen, natural gas and hydrogen are first introduced into natural gas pipeline 1 and hydrogen pipeline 3 respectively from the second air inlet 11 and the first air inlet 4. At this time, natural gas is introduced into the first gap 15 through the two first guide plates 13, while hydrogen passes through multiple pores 5 and is introduced into the first gap 15 through the second guide plate 14, so that natural gas and hydrogen are mixed together. Then the mixed natural gas and hydrogen pass through the second gap 16 and are discharged from the outlet 12, thereby realizing the blending of natural gas and hydrogen.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-precision natural gas-hydrogen blending ratio adjustment system, comprising a natural gas pipeline (1), characterized in that, The natural gas pipeline (1) has a slot (2) on its periphery, and a hydrogen pipeline (3) is installed at the slot (2). The upper and lower ends of the hydrogen pipeline (3) are respectively provided with a first air inlet (4) and multiple holes (5). A cylinder (6) is rotatably fitted at the middle of the lower end of the hydrogen pipeline (3). A baffle (7) corresponding to the multiple holes (5) is installed on the periphery of the cylinder (6). A groove (8) is provided inside the lower end of the hydrogen pipeline (3). A column (9) is mounted on the lower axial part of the cylinder (6). A plurality of teeth (10) are mounted in the middle of the column (9). The plurality of teeth (10) surround the periphery of the column (9). The column (9) is rotatably fitted in the groove (8). A drive assembly that is connected to the plurality of teeth (10) is installed inside the hydrogen pipeline (3).

2. The high-precision natural gas-hydrogen blending ratio adjustment system according to claim 1, characterized in that, The natural gas pipeline (1) has a second inlet (11) and an outlet (12) at both ends, and two first guide plates (13) corresponding to the second inlet (11) are symmetrically installed inside one end of the natural gas pipeline (1).

3. The high-precision natural gas-hydrogen blending ratio adjustment system according to claim 2, characterized in that, The lower end of the hydrogen pipeline (3) is equipped with a second guide plate (14) corresponding to the plurality of holes (5), a first gap (15) is left between the two first guide plates (13), and a second gap (16) is left between the first guide plate (13) and the second guide plate (14).

4. The high-precision natural gas-hydrogen blending ratio adjustment system according to claim 3, characterized in that, Both first guide plates (13) and second guide plates (14) are inclined, and both ends of the natural gas pipeline (1) and the upper end of the hydrogen pipeline (3) are equipped with connecting flange plates.

5. The high-precision natural gas-hydrogen blending ratio adjustment system according to claim 1, characterized in that, The drive assembly includes a crossbar (17) rotatably fitted inside the lower end of the hydrogen pipe (3), two first bevel gears (18) installed at both ends of the crossbar (17), a vertical bar (19) rotatably fitted inside the periphery of the hydrogen pipe (3), and a second bevel gear (20).

6. The high-precision natural gas-hydrogen blending ratio adjustment system according to claim 5, characterized in that, The drive assembly also includes two third bevel gears (21) installed at both ends of the vertical rod (19) and a motor (22) installed around the hydrogen pipeline (3). The output end of the motor (22) is fixed to the shaft of the second bevel gear (20).

7. The high-precision natural gas-hydrogen blending ratio adjustment system according to claim 6, characterized in that, One of the first bevel gears (18) meshes with a plurality of the teeth (10), another of the first bevel gears (18) meshes with another of the third bevel gears (21), and the second bevel gear (20) meshes with one of the third bevel gears (21).

8. The high-precision natural gas-hydrogen blending ratio adjustment system according to claim 1, characterized in that, Rubber sealing gaskets (23) are installed on the lower side of each of the baffles (7). The rubber sealing gaskets (23) correspond to the pores (5), and the rubber sealing gaskets (23) are rotatably fitted on the inner side of the lower end of the hydrogen pipeline (3).

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