Pipeline structure for hydrogen production and conveying

Abstract

The utility model discloses a pipeline structure for hydrogen production conveying, and mainly relates to the technical field of conveying pipelines. Comprising a conveying pipeline arranged between a water tank and an electrolytic bath, the conveying pipeline comprises a circulating pump, a resin filter, an ultraviolet sterilization module, a TDS water quality detection probe, a switching valve, a water outlet pipeline, a water return pipeline and a circulating pipeline, and the water outlet pipeline sequentially passes through the circulating pump, the resin filter, the switching valve, the TDS water quality detection probe and the electrolytic bath. The water return pipeline is respectively communicated with an oxygen outlet of the electrolytic bath and the top of the water tank; and the circulating pipeline sequentially passes through the circulating pump, the resin filter, the switching valve, the ultraviolet sterilization module and the water tank. The hydrogen production device has the beneficial effects that the problem that microorganisms are easy to breed in the hydrogen production process is solved, and the hydrogen production concentration and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline transportation, specifically a pipeline structure for hydrogen production and transportation. Background Technology

[0002] A hydrogen generator is a device that uses specific technology to decompose or convert hydrogen-containing substances into hydrogen gas. It has wide applications in energy, chemical, and electronics fields. Its working principle is generally based on the electrochemical reaction in an electrolytic cell. When an electric current passes through water, water molecules are decomposed into hydrogen and oxygen, which are released at the cathode and anode, respectively, thereby producing high-purity hydrogen gas. The products are only hydrogen and oxygen, which is relatively environmentally friendly.

[0003] However, during the process of using water to produce hydrogen, the continuous circulation of water over a long period of time can easily lead to the growth of microorganisms. The metabolism of these microorganisms may produce gases such as methane and carbon dioxide, which, when mixed with the produced hydrogen, will result in a low hydrogen concentration and affect the hydrogen production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a pipeline structure for hydrogen production and transportation, which solves the problem of easy microbial growth during the hydrogen production process and improves the concentration and efficiency of hydrogen production.

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

[0006] A pipeline structure for hydrogen production and transportation includes a transportation pipeline disposed between a water tank and an electrolyzer. The transportation pipeline includes a circulation pump, a resin filter, an ultraviolet sterilization module, a TDS water quality detection probe, and a switching valve, as well as an outlet pipeline, a return pipeline, and a circulation pipeline. The outlet pipeline passes sequentially through the circulation pump, the resin filter, the switching valve, the TDS water quality detection probe, and the electrolyzer. The return pipeline is connected to the oxygen outlet of the electrolyzer and the top of the water tank, respectively. The circulation pipeline passes sequentially through the circulation pump, the resin filter, the switching valve, the ultraviolet sterilization module, and the water tank.

[0007] Furthermore, it also includes the water inlet pipe connected to the switching valve.

[0008] Furthermore, the switching valve includes a base, and a first inlet connected to the resin filter, a second inlet connected to the water inlet pipe, a first outlet connected to the ultraviolet sterilization module, and a second outlet connected to the TDS water quality detection probe, all disposed on the base.

[0009] Furthermore, a valve body is rotatably connected to the base, and the valve body is provided with a straight pipe and a right-angle pipe. The straight pipe is connected to the first inlet and the second outlet, and the second inlet and the first outlet, respectively. The right-angle pipe is connected to the first inlet and the first outlet.

[0010] Furthermore, it also includes a valve cover that contacts the valve body, and the base is provided with a flange that is connected to the valve cover.

[0011] Furthermore, the flange is provided with several fixing bolts, the valve cover is provided with several through holes, the fixing bolts pass through the through holes and are provided with fixing nuts, and a spring is provided between the fixing nuts and the valve cover.

[0012] Furthermore, a first sealing ring and a second sealing ring are respectively provided between the valve cover and the flange, and between the valve cover and the valve body.

[0013] Furthermore, the valve body has a valve stem that passes through the valve cover on one side, and a driven wheel at the end of the valve stem. The driven wheel has several limiting grooves, and a pawl is provided between two adjacent limiting grooves. The valve body also includes an output motor, and a drive wheel is provided at the movable end of the output motor. A limiting block is provided on one side of the drive wheel, and the side of the limiting block contacts the limiting groove and restricts the valve stem from rotating on the valve cover. A pawl is provided on the other side of the drive wheel, and the pawl contacts the pawl and drives the valve stem to rotate on the valve cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. During normal hydrogen production, the switching valve connects to the outlet water pipeline. Raw water is pumped out of the water tank by the circulation pump and enters the outlet water pipeline. After passing through the circulation pump, it flows into the resin filter. Through ion exchange in the resin filter, ionic impurities (such as calcium, magnesium, sodium, iron, chlorine, etc.) in the water are removed, thereby ensuring the stable operation of the hydrogen production equipment, improving the purity of the produced hydrogen and extending the equipment life.

[0016] Next, the raw water flows through a switching valve and passes through a TDS water quality detection probe. The TDS water quality detection probe measures the conductivity of the water (the conductivity of ions in the water), thereby indirectly estimating the TDS value. Generally, the more dissolved ionic impurities (such as calcium, magnesium, sodium, chlorine, sulfate, etc.) in the water, the higher the conductivity and the larger the TDS value (usually 1 μS / cm conductivity corresponds to approximately 0.5-0.7 mg / L TDS). This helps determine whether the filter needs to be replaced, ensuring effective removal of ionic impurities (such as calcium, magnesium, sodium, iron, chlorine, etc.) from the water, thereby ensuring the stable operation of the hydrogen production equipment, improving the purity of the produced hydrogen, and extending the equipment's lifespan.

[0017] Finally, the raw water enters the electrolytic cell and is decomposed into hydrogen and oxygen to produce hydrogen. The produced oxygen and hydrogen are stored in the water tank. The oxygen is extracted from the oxygen port at the top of the water tank.

[0018] 2. During the hydrogen production process, when the ATP microbial detection shows that the microbial content in the raw water exceeds the standard, the circulation pipeline is connected through the switching valve. At this time, the raw water enters the ultraviolet sterilization module after passing through the circulation pump, resin filter and switching valve. The ultraviolet sterilization module removes the microorganisms in the raw water. Finally, the raw water returns to the water tank. The above steps are repeated many times to eliminate the microorganisms in the raw water and improve the effect and efficiency of hydrogen production. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the conveying pipeline of this utility model.

[0020] Appendix Figure 2 This is a schematic diagram of the switching valve of this utility model.

[0021] Appendix Figure 3 This is a schematic diagram of the valve stem structure of this utility model.

[0022] Appendix Figure 4 This is a schematic diagram of the valve body of this utility model.

[0023] Appendix Figure 5 This is a structural schematic diagram of the fixing bolt of this utility model.

[0024] Appendix Figure 6 This is a schematic diagram of the drive wheel of this utility model.

[0025] The labels shown in the attached diagram:

[0026] 1. Water tank; 2. Electrolytic cell; 3. Delivery pipeline; 4. Circulation pump; 5. Resin filter; 6. Ultraviolet sterilization module; 7. TDS water quality detection probe; 8. Switching valve; 9. Outlet pipeline; 10. Return pipeline; 11. Circulation pipeline; 12. Inlet pipeline; 13. Base; 14. First inlet; 15. Second inlet; 16. First outlet; 17. Second outlet; 18. Valve body; 19. Straight-through pipeline; 20. Right-angle pipeline; 21. Valve cover; 22. Flange; 23. Fixing bolt; 24. Through hole; 25. Fixing nut; 26. Spring; 27. First sealing ring; 28. Second sealing ring; 29. ​​Valve stem; 30. Driven wheel; 31. Limiting groove; 32. Pulley; 33. Output motor; 34. Drive wheel; 35. Limiting block; 36. Pulley. Detailed Implementation

[0027] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0028] This utility model provides a pipeline structure for hydrogen production and transportation, such as... Figure 1 and Figure 2 As shown, the system includes a delivery pipeline 3 located between the water tank 1 and the electrolytic cell 2. The delivery pipeline 3 includes a circulation pump 4, a resin filter 5, an ultraviolet sterilization module 6, a TDS water quality detection probe 7, and a switching valve 8, as well as an outlet pipeline 9, a return pipeline 10, and a circulation pipeline 11. The outlet pipeline 9 sequentially passes through the circulation pump 4, the resin filter 5, the switching valve 8, the TDS water quality detection probe 7, and the electrolytic cell 2. The return pipeline 10 is connected to the oxygen outlet of the electrolytic cell 2 and the top of the water tank 1, respectively. The circulating pipeline 11 passes sequentially through the circulating pump 4, resin filter 5, switching valve 8, ultraviolet sterilization module 6, and water tank 1. During normal hydrogen production, the switching valve 8 connects to the outlet water pipeline 9. Raw water is pumped out of the water tank 1 through the circulating pump 4 and enters the outlet water pipeline 9. After passing through the circulating pump 4, it flows into the resin filter 5. Through ion exchange in the resin filter 5, ionic impurities (such as calcium, magnesium, sodium, iron, chlorine, etc.) in the water are removed, thereby ensuring the stable operation of the hydrogen production equipment, improving the purity of the produced hydrogen, and extending the equipment life.

[0029] Next, the raw water flows through the switching valve 8 and then through the TDS water quality detection probe 7. The conductivity of the water (the conductivity of ions in the water) is measured by the TDS water quality detection probe 7, thereby indirectly estimating the TDS value. Generally, the more dissolved ionic impurities (such as calcium, magnesium, sodium, chlorine, sulfate, etc.) in the water, the higher the conductivity and the larger the TDS value (usually 1 μS / cm conductivity corresponds to about 0.5-0.7 mg / L TDS). This helps determine whether the filter needs to be replaced, ensuring effective removal of ionic impurities (such as calcium, magnesium, sodium, iron, chlorine, etc.) from the water, thereby ensuring the stable operation of the hydrogen production equipment, improving the purity of the produced hydrogen, and extending the equipment life.

[0030] Finally, the raw water enters the electrolysis cell 2 and is decomposed into hydrogen and oxygen to produce hydrogen. The produced oxygen and hydrogen are stored in the water tank 1. The oxygen is stored in the upper part of the water tank 1 and extracted from the oxygen port at the top of the water tank 1.

[0031] When the ATP microbial detection shows that the microbial content in the raw water exceeds the standard, the circulation pipeline 11 is connected through the switching valve 8. At this time, the raw water enters the ultraviolet sterilization module 6 after passing through the circulation pump 4, resin filter 5 and switching valve 8. The ultraviolet sterilization module 6 removes the microorganisms in the raw water. Finally, the raw water returns to the water tank 1. The above steps are repeated many times to eliminate the microorganisms in the raw water and improve the effect and efficiency of hydrogen production.

[0032] Preferred, such as Figure 2As shown, it also includes an inlet pipe 12 connected to the switching valve 8. When the raw water content in the water tank 1 is low, the inlet pipe 12 is connected through the switching valve 8. The raw water from the outside enters the ultraviolet sterilization module 6 after passing through the switching valve 8. The ultraviolet sterilization module 6 removes microorganisms from the raw water from the outside and then enters the water tank 1. There is no need to manually add raw water, which avoids the entry of external microorganisms and impurities into the water tank 1 during the manual addition process, thus affecting the efficiency and quality of hydrogen production.

[0033] Preferred, such as Figure 3 As shown, the switching valve 8 includes a base 13, and a first inlet 14 connected to the resin filter 5, a second inlet 15 connected to the water inlet pipeline 12, a first outlet 16 connected to the ultraviolet sterilization module 6, and a second outlet 17 connected to the TDS water quality detection probe 7, which realizes the switching of the delivery pipeline 3 and realizes multiple functions such as water inlet, sterilization and hydrogen production. At the same time, it eliminates the need to use multiple valves for control, thereby reducing the cost of valve manufacturing and the space required for installation.

[0034] Preferred, such as Figure 4 As shown, a valve body 18 is rotatably connected to the base 13. The valve body 18 is provided with a straight pipe 19 and a right-angle pipe 20. The straight pipe 19 is connected to the first inlet 14 and the second outlet 17, and the second inlet 15 and the first outlet 16, respectively. The right-angle pipe 20 is connected to the first inlet 14 and the first outlet 16. By rotating the valve body 18, the water outlet pipe 9, the water inlet pipe 12, and the circulation pipe 11 are connected respectively, realizing multiple functions such as water intake, sterilization, and hydrogen production. At the same time, there is no need to use multiple valves for control, thereby reducing the cost of valve manufacturing and the space required for installation.

[0035] Preferred, such as Figure 3 and Figure 5 As shown, it also includes a valve cover 21 that contacts the valve body 18. The base 13 is provided with a flange 22 that is connected to the valve cover 21 to fix the valve body 18 and facilitate the disassembly of the valve cover 21 for maintenance and replacement of the valve body 18, thereby further improving the efficiency of hydrogen production.

[0036] Preferred, such as Figure 5 As shown, the flange 22 is provided with several fixing bolts 23, with the head of the fixing bolt 23 located on the lower side to facilitate subsequent rotation of the fixing nut 25 at the tail. The valve cover 21 is provided with several through holes 24. The fixing bolt 23 passes through the through holes 24 and is connected to the fixing nut 25. A spring piece 26 is provided between the fixing nut 25 and the valve cover 21 to realize the detachable connection between the valve cover 21 and the valve body 18, which facilitates the subsequent disassembly of the valve cover 21 and maintenance and replacement of the valve body 18, further improving the efficiency of hydrogen production.

[0037] Preferred, such as Figure 5 As shown, a first sealing ring 27 and a second sealing ring 28 are respectively provided between the valve cover 21 and the flange 22, and between the valve cover 21 and the valve body 18, to achieve the sealing of the switching valve 8, prevent raw water from flowing out, and further improve the efficiency of hydrogen production.

[0038] Preferred, such as Figure 3 and Figure 6 As shown, the valve body 18 has a valve stem 29 passing through the valve cover 21 on one side. The end of the valve stem 29 has a driven wheel 30. The driven wheel 30 has several limiting grooves 31, and a guide groove 32 is provided between two adjacent limiting grooves 31. Specifically, two adjacent guide grooves 32 are set at 90 degrees to ensure that each rotation of the driven wheel 30 drives the valve body 18 to rotate 90 degrees, ensuring that the straight-through pipe 19 and the right-angle pipe 20 are fully connected to their respective inlets and outlets, thereby improving the efficiency of hydrogen production. It also includes an output motor 33, the movable end of which has a drive wheel 34. A limiting block 35 is provided on one side of the drive wheel 34. The side of the limiting block 35 contacts the limiting groove 31 and restricts the valve stem 29 from rotating on the valve cover 21, preventing the valve body 18 from being accidentally rotated by external force, which would cause the switching valve 8 to switch arbitrarily and affect the subsequent normal hydrogen production, disinfection and water intake, thereby improving the efficiency and effect of hydrogen production; the other side of the drive wheel 34 is provided with a lever 36, which contacts the lever groove 32 and drives the valve stem 29 to rotate on the valve cover 21, thereby driving the valve body 18 to rotate on the base 13, changing the connection of the straight pipe 19 and the right-angle pipe 20, thereby switching the pipes to realize the functions of hydrogen production, disinfection and water intake respectively, improving the efficiency and effect of hydrogen production.

[0039] Example 1

[0040] This utility model provides a pipeline structure for hydrogen production and transportation, such as... Figure 1 and Figure 2 As shown, during normal hydrogen production, the switching valve 8 connects to the outlet water pipe 9. Raw water is pumped out from the water tank 1 by the circulation pump 4 and enters the outlet water pipe 9. After passing through the circulation pump 4, it flows into the resin filter 5. Through the ion exchange of the resin filter 5, ionic impurities (such as calcium, magnesium, sodium, iron, chlorine, etc.) in the water are removed, thereby ensuring the stable operation of the hydrogen production equipment, improving the purity of the produced hydrogen and extending the equipment life.

[0041] Next, the raw water flows through the switching valve 8 and then through the TDS water quality detection probe 7. The conductivity of the water (the conductivity of ions in the water) is measured by the TDS water quality detection probe 7, thereby indirectly estimating the TDS value. Generally, the more dissolved ionic impurities (such as calcium, magnesium, sodium, chlorine, sulfate, etc.) in the water, the higher the conductivity and the larger the TDS value (usually 1 μS / cm conductivity corresponds to about 0.5-0.7 mg / L TDS). This helps determine whether the filter needs to be replaced, ensuring effective removal of ionic impurities (such as calcium, magnesium, sodium, iron, chlorine, etc.) from the water, thereby ensuring the stable operation of the hydrogen production equipment, improving the purity of the produced hydrogen, and extending the equipment life.

[0042] Finally, the raw water enters the electrolysis cell 2 and is decomposed into hydrogen and oxygen to produce hydrogen. The produced oxygen and hydrogen are stored in the water tank 1. The oxygen is stored in the upper part of the water tank 1 and extracted from the oxygen port at the top of the water tank 1.

[0043] During the hydrogen production process, when the ATP microbial detection shows that the microbial content in the raw water exceeds the standard, the circulation pipeline 11 is connected through the switching valve 8. At this time, the raw water enters the ultraviolet sterilization module 6 after passing through the circulation pump 4, resin filter 5 and switching valve 8. The ultraviolet sterilization module 6 removes the microorganisms in the raw water. Finally, the raw water returns to the water tank 1. The above steps are repeated many times to eliminate the microorganisms in the raw water and improve the effect and efficiency of hydrogen production.

[0044] Example 2

[0045] Based on Example 1, such as Figure 2 and Figure 3 As shown, when the raw water content in water tank 1 is low, the inlet pipe 12 is connected through the switching valve 8. The raw water from the outside enters the ultraviolet sterilization module 6 after passing through the switching valve 8. The ultraviolet sterilization module 6 removes microorganisms from the raw water from the outside and then enters the water tank 1. There is no need to manually add raw water, which avoids the entry of external microorganisms and impurities into the water tank 1 during the manual addition process, thus affecting the efficiency and quality of hydrogen production.

[0046] Example 3

[0047] Based on Example 2, such as Figures 3-5 As shown, the switching valve 8 includes a base 13, and a first inlet 14 connected to the resin filter 5, a second inlet 15 connected to the water inlet pipe 12, a first outlet 16 connected to the ultraviolet sterilization module 6, and a second outlet 17 connected to the TDS water quality detection probe 7. A valve body 18 is rotatably connected to the base 13, and the valve body 18 is provided with a straight pipe 19 and a right-angle pipe 20.

[0048] When it is necessary to connect the water inlet pipe 12, the straight pipe 19 connects the second inlet 15 and the first outlet 16, so that the water from the outside can be disinfected by the ultraviolet sterilization module 6 before entering the water tank 1, thereby further improving the efficiency and quality of hydrogen production.

[0049] When it is necessary to connect the water outlet pipe 9, the straight pipe 19 connects the first inlet 14 and the second outlet 17, so that the raw water flows out from the water tank 1, enters the electrolyzer 2 after filtration, and realizes hydrogen production.

[0050] When the circulation pipeline 11 needs to be connected, the right-angle pipeline 20 connects the first inlet 14 and the first outlet 16, so that the raw water repeatedly passes through the resin filter 5 and the ultraviolet sterilization module 6 to achieve the filtration and sterilization of the raw water, thereby improving the quality of subsequent hydrogen production.

[0051] Example 4

[0052] Based on Example 3, such as Figure 3 and Figure 6 As shown, when the required function of the hydrogen generator changes, the output motor 33 drives the drive wheel 34 to rotate, causing the limiting block 35 on one side of the drive wheel 34 to slide out of the limiting groove 31, releasing the restriction on the rotation of the driven wheel 30. At the same time, the lever 36 contacts the lever groove 32, and the component force generated after the contact drives the valve stem 29 to rotate on the valve cover 21, thereby driving the valve body 18 to rotate on the base 13, changing the connection between the straight pipe 19 and the right-angle pipe 20, and thus switching the pipes to realize the functions of hydrogen production, disinfection and water intake, thereby improving the efficiency and effect of hydrogen production.

[0053] In addition, after the drive wheel 34 drives the driven wheel 30 to rotate once, the limiting block 35 re-enters the limiting groove 31 and contacts the limiting groove 31 through the side of the limiting block 35, thus restricting the valve stem 29 from rotating on the valve cover 21. This prevents the valve body 18 from being rotated unintentionally by external force, which would cause the switching valve 8 to switch arbitrarily and affect the subsequent normal hydrogen production, disinfection and water intake, thereby improving the efficiency and effect of hydrogen production.

Claims

1. A pipeline structure for hydrogen production and transportation, comprising a transportation pipeline (3) disposed between a water tank (1) and an electrolyzer (2), characterized in that: The delivery pipeline (3) includes a circulation pump (4), a resin filter (5), an ultraviolet sterilization module (6), a TDS water quality detection probe (7), and a switching valve (8), as well as an outlet pipeline (9), a return pipeline (10), and a circulation pipeline (11). The outlet pipeline (9) passes through the circulation pump (4), the resin filter (5), the switching valve (8), the TDS water quality detection probe (7), and the electrolytic cell (2) in sequence. The return pipeline (10) is connected to the oxygen outlet of the electrolytic cell (2) and the top of the water tank (1) in sequence. The circulation pipeline (11) passes through the circulation pump (4), the resin filter (5), the switching valve (8), the ultraviolet sterilization module (6), and the water tank (1) in sequence.

2. The pipeline structure for hydrogen production and transportation according to claim 1, characterized in that: It also includes an inlet pipe (12) connected to the switching valve (8).

3. The pipeline structure for hydrogen production and transportation according to claim 2, characterized in that: The switching valve (8) includes a base (13), a first inlet (14) connected to the resin filter (5), a second inlet (15) connected to the water inlet pipe (12), a first outlet (16) connected to the ultraviolet sterilization module (6), and a second outlet (17) connected to the TDS water quality detection probe (7).

4. The pipeline structure for hydrogen production and transportation according to claim 3, characterized in that: A valve body (18) is rotatably connected to the base (13). The valve body (18) is provided with a straight pipe (19) and a right-angle pipe (20). The straight pipe (19) is connected to the first inlet (14) and the second outlet (17), as well as the second inlet (15) and the first outlet (16). The right-angle pipe (20) is connected to the first inlet (14) and the first outlet (16).

5. The pipeline structure for hydrogen production and transportation according to claim 4, characterized in that: It also includes a valve cover (21) that contacts the valve body (18), and the base (13) is provided with a flange (22) that is connected to the valve cover (21).

6. The pipeline structure for hydrogen production and transportation according to claim 5, characterized in that: The flange (22) is provided with a number of fixing bolts (23), the valve cover (21) is provided with a number of through holes (24), the fixing bolts (23) pass through the through holes (24) and are provided with fixing nuts (25), and a spring piece (26) is provided between the fixing nuts (25) and the valve cover (21).

7. The pipeline structure for hydrogen production and transportation according to claim 5, characterized in that: A first sealing ring (27) and a second sealing ring (28) are respectively provided between the valve cover (21) and the flange (22) and between the valve cover (21) and the valve body (18).

8. The pipeline structure for hydrogen production and transportation according to claim 5, characterized in that: The valve body (18) has a valve stem (29) that passes through the valve cover (21) on one side. The valve stem (29) has a driven wheel (30) at its end. The driven wheel (30) has several limiting grooves (31) and a chute (32) between two adjacent limiting grooves (31). The valve body (18) also includes an output motor (33). The output motor (33) has a drive wheel (34) at its movable end. The drive wheel (34) has a limiting block (35) on one side. The side of the limiting block (35) contacts the limiting groove (31) and restricts the valve stem (29) from rotating on the valve cover (21). The drive wheel (34) has a lever (36) on the other side. The lever (36) contacts the chute (32) and drives the valve stem (29) to rotate on the valve cover (21).

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