A hydrogen decompression system

Abstract

The present application discloses a hydrogen decompression system, which relates to the field of hydrogen decompression, including a delivery pipe 2, one end of which is provided with four delivery pipes 1, the four delivery pipes 1 are fixedly connected to the delivery pipe 2 and are interconnected, a pressure regulator 1 is provided between the pressure gauge 1 and the pressure gauge 2, the manual two-way valve is fixedly connected to the delivery pipe 1, two delivery pipes 3 are fixed on the delivery pipe 2, the delivery pipe 3 is fixed with a pressure regulator 2, a water collecting mechanism is provided on the delivery pipe 2, and an auxiliary drainage mechanism is provided on the delivery pipe 2. The water collecting mechanism collects water vapor in the hydrogen, and then uses the auxiliary drainage mechanism to discharge the collected water vapor, thereby reducing the possibility that the water vapor in the hydrogen will condense into water at a low temperature after the pressure reduction and gather at the low point of the delivery pipe 2 when the high-pressure hydrogen is decompressed, and the hydrogen transportation will be affected for a long time.

Description

Technical Field

[0001] The present application relates to the field of hydrogen pressure reduction, and in particular to a hydrogen pressure reduction system. Background Art

[0002] Due to its unique physical and chemical properties, hydrogen has a wide range of applications in many fields. The transportation of gaseous hydrogen is divided into two modes: long-tube trailer and pipeline transportation. The transportation pressure of long-tube trailer is generally around 20MPa, which is suitable for short-distance and small-scale hydrogen transportation. Pipeline transportation is an important way to achieve large-scale and long-distance transportation of hydrogen. The pipeline transportation pressure is generally 1~3MPa, with a large hydrogen transmission volume and low energy consumption, but the one-time investment in building the pipeline is relatively large.

[0003] When gaseous hydrogen is transported in a long-tube trailer, the hydrogen will be compressed into high-pressure gas and compressed into the long-tube trailer. After being transported to the destination, the high-pressure hydrogen will be depressurized. The depressurization process is generally to transport the high-pressure hydrogen into a pipeline, and then install a pressure regulator in the pipeline. The high-pressure hydrogen will be depressurized after passing through the pressure regulator.

[0004] High-pressure hydrogen enters the pipeline. When the high-pressure hydrogen on the pipeline is cooled down by the pressure regulator, there may be residual water molecules in the pipeline or the hydrogen itself is not pure enough to contain water molecules. In the process of depressurizing the hydrogen, the temperature drops and the water molecules that enter the pipeline may condense into water vapor or water droplets and mix in the hydrogen. Water may accumulate in the lower part of the pipeline, affecting the transportation of hydrogen. Summary of the invention

[0005] The purpose of the present application is to solve the problem raised in the above-mentioned background technology that water molecules may remain in the pipeline or the hydrogen itself is not pure enough and contains water molecules. During the process of hydrogen depressurization, the temperature decreases, and the water molecules entering the pipeline may condense into water vapor or water droplets and mix in the hydrogen, which may cause water accumulation in the lower position of the pipeline and affect the transportation of hydrogen. The present application provides a hydrogen depressurization system.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A hydrogen pressure reduction system comprises a delivery pipe 2, wherein four delivery pipes 1 are arranged at one end of the delivery pipe 2, and the four delivery pipes 1 are fixedly connected to the delivery pipe 2 and are interconnected, a pressure gauge 1 is fixed to the delivery pipe 1, a pressure gauge 2 is fixed to the delivery pipe 1, a pressure regulator 1 is arranged between the pressure gauge 1 and the pressure gauge 2, the pressure regulator 1 is fixedly connected to the delivery pipe 1, a manual two-way valve is arranged on the side of the pressure gauge 2 away from the pressure gauge 1, and the manual two-way valve is fixedly connected to the delivery pipe 1, two delivery pipes 3 are fixed to the delivery pipe 2, and the two delivery pipes 3 are fixedly connected to the delivery pipe 2 and are interconnected, a manual two-way valve is fixed to the delivery pipe 3, a pressure regulator 2 is fixed to the delivery pipe 3, a pressure gauge 3 is fixed to the delivery pipe 3, a safety valve is fixed to the delivery pipe 3, a water collecting mechanism is arranged on the delivery pipe 2, and an auxiliary drainage mechanism is arranged on the delivery pipe 2.

[0008] By adopting the above technical solution, when using the pressure reduction system, firstly, several delivery pipes 1 are connected to the corresponding hydrogen transport vehicles, and then the high-pressure hydrogen enters the delivery pipe 1, and then the hydrogen enters the delivery pipe 2, the hydrogen moves in the delivery pipe 2, and then the hydrogen enters the delivery pipe 3 from the delivery pipe 2, and the hydrogen pressure is adjusted again by the pressure regulator 2, and the hydrogen enters the water collecting mechanism from the delivery pipe 2, the water collecting mechanism collects the water vapor in the hydrogen, and then the collected water vapor is discharged by the auxiliary drainage mechanism, thereby reducing the possibility that when the high-pressure hydrogen is reduced in pressure, the water vapor in the hydrogen condenses into water at low temperature after the pressure reduction and gathers in the low part of the delivery pipe 2, which affects the hydrogen transportation for a long time.

[0009] Furthermore, the water collecting mechanism includes a water collecting pipe 1 fixed on a conveying pipe 2, the water collecting pipe 1 is connected to the conveying pipe 2, a water collecting pipe 2 is fixed on the conveying pipe 2, the water collecting pipe 2 is connected to the conveying pipe 2, two symmetrical water collecting tanks are arranged between the water collecting pipe 1 and the water collecting pipe 2, the two water collecting tanks are fixed to the water collecting pipe 1 and the water collecting pipe 2, and are connected to each other, two symmetrical valves 1 are fixed on the water collecting pipe 1, two symmetrical valves 2 are fixed on the water collecting pipe 2, a water collecting auxiliary component is arranged in the water collecting tank, and a reciprocating component 1 is arranged on the water collecting tank.

[0010] By adopting the above technical scheme, hydrogen entrained with water vapor enters the water collecting chamber from one end of the water collecting pipe, and the water collecting auxiliary component collects the water vapor entrained in the hydrogen, allowing the water vapor to gather into water droplets in the water collecting chamber, and then re-enters the delivery pipe 2. At the same time, the water droplets in the wall of the delivery pipe 2 also flow into the water collecting chamber. After a lot of water is collected in the water collecting chamber, the corresponding valve 1 and valve 2 are closed and opened to allow hydrogen to pass through another water collecting chamber, and then the water collecting chamber that already has water is drained, thereby reducing the accumulation of water vapor and water droplets in the low part of the delivery pipe 2 when the delivery pipe 2 is transporting hydrogen, thereby affecting the delivery of hydrogen by the delivery pipe 2.

[0011] Furthermore, the water collection auxiliary component includes a support frame fixed in the water collection chamber, a water collection plate is arranged in the support frame, and evenly distributed honeycomb holes are opened on the water collection plate. The support frame is arranged at an angle.

[0012] By adopting the above technical solution, a number of honeycomb holes are opened on the water collecting plate to increase the contact area between the water vapor and the water collecting plate. The water collecting plate is made of metal, and then the water vapor gathers into water droplets on the water collecting plate, so that the water vapor in the hydrogen can condense into water droplets faster and reduce the water vapor entrained in the hydrogen.

[0013] Furthermore, the reciprocating component 1 includes a sliding block fixed on the water collecting plate, a sliding groove is provided on the support frame, the sliding block is located in the sliding groove and is slidably connected to the support frame, and a reciprocating member is provided between the water collecting plate and the water collecting chamber.

[0014] By adopting the above technical solution, the reciprocating part drives the water collecting plate back and forth, and the water collecting plate moves in the sliding groove under the support of the sliding block, so that the water collecting plate swings back and forth, so that the water droplets on the water collecting plate can fall into the water collecting chamber, reducing the possibility of water droplets still adhering to the water collecting plate after drainage.

[0015] Furthermore, the reciprocating member includes a reciprocating motor fixed on the water collecting chamber, the output end of the reciprocating motor passes through the water collecting chamber, the output end of the reciprocating motor is eccentrically fixedly connected to a reciprocating wheel, and the side of the reciprocating wheel is in conflict with the water collecting plate.

[0016] By adopting the above technical solution, the output end of the reciprocating motor drives the reciprocating wheel to rotate eccentrically, and the edge of the reciprocating wheel pushes the water collecting plate back and forth, allowing the water collecting plate to move back and forth, thereby facilitating the water collecting plate to move back and forth.

[0017] Furthermore, a return spring is arranged in the sliding groove, and both ends of the return spring are fixedly connected to the support frame and the sliding block.

[0018] By adopting the above technical solution, the sliding block squeezes the return spring when moving, and the return spring pushes the sliding block to always be in the direction of the reciprocating wheel, so that the water collecting plate always contacts the reciprocating wheel, so that the water collecting plate can always contact the reciprocating wheel when moving back and forth, thereby improving the stability of the water collecting plate movement.

[0019] Furthermore, the auxiliary drainage mechanism includes a drain pipe fixed on the water collecting chamber, the drain pipe is connected with the water collecting chamber, a drain valve is fixed on the drain pipe, a water level sensor is fixed in the water collecting chamber, a drain plug is slidably connected in the drain pipe, a plurality of drain holes are opened on the drain plug, a rubber sheet is fixed on the drain plug, a support rod is fixed on the drain plug, and a reciprocating component 2 is arranged between the support rod and the water collecting plate.

[0020] By adopting the above technical solution, when the water in the water collecting tank accumulates to the water level sensor, a reminder is issued, allowing the water in the water collecting tank to be discharged from the drain pipe. The reciprocating wheel drives the water collecting plate to move back and forth. At the same time, the water collecting plate drives the reciprocating component 2, and the reciprocating component 2 drives the support rod, which drives the drain plug. The water in the water collecting tank passes through the drain hole in one direction under the action of the rubber sheet, thereby making it convenient to drain the accumulated water in the water collecting tank and speeding up the drainage.

[0021] Furthermore, the reciprocating component 2 includes a connecting rod 1 fixed on the water collecting plate, a connecting rod 2 is fixed to one end of the connecting rod 1 away from the water collecting plate, and the connecting rod 2 is slidably connected to the support rod.

[0022] By adopting the above technical solution, when the water collecting plate moves back and forth, the water collecting plate drives connecting rod one, and connecting rod one drives connecting rod two, so that the support rod moves along connecting rod two, and the support rod moves up and down under the restriction of the drain plug, so that the water collecting plate can move while the drain plug moves.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. In the present application, after the high-pressure hydrogen is reduced in pressure by the pressure regulator on the delivery pipe 1, the hydrogen enters the delivery pipe 2 with water vapor under the push of the subsequent hydrogen. When the hydrogen passes through the lower part of the delivery pipe 2, the hydrogen enters the water collecting tank from one end of the water collecting pipe with water vapor. The hydrogen with water vapor passes through the water collecting plate on the support frame. A number of honeycomb holes are provided on the water collecting plate to increase the contact area between the water vapor and the water collecting plate. The water collecting plate is made of metal. Then the water vapor gathers into water droplets on the water collecting plate. The water collecting plate tilts under the support of the support frame. Then the water droplets slide into the water collecting tank and then re-enter the delivery pipe 2. At the same time, the water vapor in the wall of the delivery pipe 2 Water droplets also flow into the water collecting tank. When the water in the water collecting tank accumulates to the water level sensor, a reminder is issued to close and open the corresponding valve one and valve two. First, both valves are opened, and then valve one at the empty water collecting tank end is opened. Then, valve one at the water collecting tank end with water is closed to allow hydrogen to pass through the empty water collecting tank. After the hydrogen in the water collecting tank with water enters the delivery pipe two, valve two on the water collecting tank with water is closed to allow hydrogen to pass through the other water collecting tank. This achieves the purpose of reducing the pressure of high-pressure hydrogen, and the water vapor in the hydrogen condenses into water at low temperature after the pressure is reduced and gathers at the low point of delivery pipe two, thereby affecting the hydrogen delivery for a long time.

[0025] 2. In the present application, the water in the water collecting tank is discharged from the drain pipe by opening the drain valve on the drain pipe, and at the same time, the output end of the reciprocating motor drives the reciprocating wheel to rotate eccentrically, and the edge of the reciprocating wheel pushes the water collecting plate back and forth, so that the water collecting plate moves back and forth, and the water droplets on the water collecting plate fall off. While the water collecting plate moves back and forth, the water collecting plate drives connecting rod one, and connecting rod one drives connecting rod two, so that the support rod moves along connecting rod two, and the support rod moves up and down under the restriction of the drain plug, and the support rod drives the drain plug to move up and down, so that the water in the water collecting tank passes through the drain hole in one direction under the action of the rubber sheet, and then is discharged from the water collecting tank faster under the push of the drain plug and the rubber sheet, thereby reducing the possibility of water on the water collecting plate not being discharged during the drainage process, and at the same time accelerating the discharge of water in the water collecting tank and improving the drainage efficiency.

[0026] 3. In the present application, the edge of the reciprocating wheel contacts the water collecting plate back and forth, and when the water collecting plate moves under the support of the sliding block, the sliding block squeezes the reset spring when moving, and the reset spring pushes the sliding block to always be in the direction of the reciprocating wheel, so that the water collecting plate always contacts the reciprocating wheel, thereby achieving the purpose of enabling the water collecting plate to always contact the reciprocating wheel when moving back and forth, thereby improving the stability of the movement of the water collecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a first three-dimensional structural schematic diagram of the hydrogen decompression system in this application;

[0028] Figure 2 It is a schematic diagram of the internal structure of the hydrogen decompression system in this application;

[0029] Figure 3 This application Figure 2 The enlarged schematic diagram at A in the middle;

[0030] Figure 4 This application Figure 2 The enlarged schematic diagram of point B in the middle;

[0031] Figure 5 This application Figure 2 Enlarged schematic diagram at point C in the middle.

[0032] Description of reference numerals:

[0033] 1. Delivery pipe one; 2. Delivery pipe two; 3. Delivery pipe three; 4. Pressure gauge one; 5. Pressure gauge two; 61. Water collecting pipe one; 62. Water collecting chamber; 63. Valve one; 64. Water collecting pipe two; 65. Valve two; 661. Support frame; 662. Water collecting plate; 671. Sliding block; 672. Sliding groove; 6731. Reciprocating wheel; 6732. Reciprocating motor; 674. Reset spring; 71. Support rod; 72. Drain plug; 73. Drain hole; 74. Rubber sheet; 751. Connecting rod one; 752. Connecting rod two; 76. Drain pipe; 77. Drain valve; 78. Water level sensor; 8. Manual two-way valve; 9. Pressure regulator one; 10. Pressure gauge three; 11. Pressure regulator two; 12. Safety valve. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0035] The embodiment of the present application discloses a hydrogen pressure reduction system.

[0036] Reference Figure 1 and Figure 2A hydrogen depressurization system comprises a delivery pipe 2, four delivery pipes 1 are arranged at one end of the delivery pipe 2, the four delivery pipes 1 are fixedly connected to the delivery pipe 2, and are interconnected, a pressure gauge 4 is fixed on the delivery pipe 1, a pressure gauge 25 is fixed on the delivery pipe 1, a pressure regulator 9 is arranged between the pressure gauge 4 and the pressure gauge 25, the pressure regulator 9 is fixedly connected to the delivery pipe 1, a manual two-way valve 8 is arranged on the side of the pressure gauge 25 away from the pressure gauge 4, the manual two-way valve 8 is fixedly connected to the delivery pipe 1, two delivery pipes 3 3 are fixed on the delivery pipe 2, the two delivery pipes 3 3 are fixedly connected to the delivery pipe 2, and are interconnected, a manual two-way valve 8 is fixed on the delivery pipe 3 3, a pressure regulator 2 11 is fixed on the delivery pipe 3 3, a pressure gauge 3 10 is fixed on the delivery pipe 3 3, a safety valve 12 is fixed on the delivery pipe 3 3, a water collecting mechanism is arranged on the delivery pipe 2, and an auxiliary drainage mechanism is arranged on the delivery pipe 2.

[0037] When using the pressure reduction system, first connect several delivery pipes 1 to the corresponding hydrogen transport vehicles, then high-pressure hydrogen enters the delivery pipe 1, and the pressure gauge 4 monitors the pressure of the hydrogen. Then the hydrogen passes through the pressure regulator 9, and the pressure regulator 9 reduces the pressure of the hydrogen. Then the pressure gauge 25 monitors the pressure of the hydrogen after the pressure reduction. Then the hydrogen enters the delivery pipe 22, and the hydrogen moves in the delivery pipe 22. Then the hydrogen enters the delivery pipe 33 from the delivery pipe 22, and the pressure regulator 211 is used to adjust the hydrogen pressure again. Then the pressure gauge 310 on the delivery pipe 33 monitors the hydrogen pressure in the delivery pipe 33, and then the hydrogen enters the delivery pipe 1 again. The hydrogen after decompression is then subjected to subsequent processing, which can meet the demand for large-flow supply, while taking into account the convenience and safety of replacing hydrogen tank trucks, and meets the Class A explosion-proof level. After the hydrogen is decompressed by the pressure regulator 9, the hydrogen enters the water collecting mechanism from the delivery pipe 2, and the water collecting mechanism collects the water vapor in the hydrogen, and then uses the auxiliary drainage mechanism to discharge the collected water vapor. By allowing the water collecting mechanism to reduce the pressure of the hydrogen, the water vapor entrained in the hydrogen is collected, and then the auxiliary drainage mechanism is used to regularly discharge the collected water, thereby reducing the possibility that the water vapor in the hydrogen will condense into water at a low temperature after the pressure reduction and gather in the low part of the delivery pipe 2 when the high-pressure hydrogen is decompressed, thereby affecting the hydrogen transportation for a long time.

[0038] Reference Figure 2 , Figure 3 and Figure 4The water collecting mechanism includes a water collecting pipe 1 61 fixed on the conveying pipe 2 2, the water collecting pipe 1 61 is connected to the conveying pipe 2 2, a water collecting pipe 2 64 is fixed on the conveying pipe 2 2, the water collecting pipe 2 64 is connected to the conveying pipe 2 2, two symmetrical water collecting tanks 62 are arranged between the water collecting pipe 1 61 and the water collecting pipe 2 64, the two water collecting tanks 62 are fixed to the water collecting pipe 1 61 and the water collecting pipe 2 64, and are connected to each other, two symmetrical valves 1 63 are fixed on the water collecting pipe 1 61, two symmetrical valves 2 65 are fixed on the water collecting pipe 2 64, a water collecting auxiliary component is arranged in the water collecting tank 62, and a reciprocating component 1 is arranged on the water collecting tank 62.

[0039] After the high-pressure hydrogen is reduced in pressure by the pressure regulator 9 on the delivery pipe 1, the hydrogen enters the delivery pipe 22 with the subsequent push of the hydrogen. When the hydrogen passes through the lower part of the delivery pipe 2, the hydrogen enters the water collecting tank 62 from one end of the water collecting pipe with the water vapor. The water collecting auxiliary component collects the water vapor entrained in the hydrogen, allowing the water vapor to gather into water droplets in the water collecting tank 62, and then re-enters the delivery pipe 22. At the same time, the water droplets in the wall of the delivery pipe 22 also flow into the water collecting tank 62. After a lot of water is collected in the water collecting tank 62, close and open the corresponding valve 1 63 and valve 2 65. First, open both valves 2 65, and then open the empty collecting tank. Valve 1 63 at the end of the water tank 62, and then close valve 1 63 at the end of the water collecting tank 62 with water, allowing hydrogen to pass through the empty water collecting tank 62. After the hydrogen in the water collecting tank 62 with water enters the delivery pipe 22, close valve 2 65 on the water collecting tank 62 with water, allowing hydrogen to pass through the other water collecting tank 62, and then drain the water collecting tank 62 that already has water. By using the two water collecting tanks 62 to allow hydrogen to pass through in turn, the water collecting tanks 62 collect the water vapor generated by the depressurized hydrogen and the water droplets in the delivery pipe 22, thereby reducing the accumulation of water vapor and water droplets in the lower part of the delivery pipe 22 when the delivery pipe 22 is transporting hydrogen, thereby affecting the delivery of hydrogen by the delivery pipe 22.

[0040] Reference Figure 2 and Figure 4 The water collecting auxiliary component includes a support frame 661 fixed in the water collecting chamber 62, a water collecting plate 662 is arranged in the support frame 661, and the water collecting plate 662 is provided with evenly distributed honeycomb holes, and the support frame 661 is arranged at an angle.

[0041] The hydrogen gas carrying water vapor is allowed to pass through the water collecting plate 662 on the support frame 661. A number of honeycomb holes are provided on the water collecting plate 662 to increase the contact area between the water vapor and the water collecting plate 662. The water collecting plate 662 is made of metal. The water vapor gathers into water droplets on the water collecting plate 662. The water collecting plate 662 is tilted under the support of the support frame 661. The water droplets then slide into the water collecting chamber 62. By allowing the hydrogen gas to pass through the water collecting plate 662 carrying water vapor, the water vapor in the hydrogen gas can condense into water droplets faster, thereby reducing the water vapor carried by the hydrogen gas.

[0042] Reference Figure 2 and Figure 4 The reciprocating component 1 includes a sliding block 671 fixed on the water collecting plate 662, a sliding groove 672 is opened on the support frame 661, the sliding block 671 is located in the sliding groove 672 and is slidably connected to the support frame 661, and a reciprocating member is arranged between the water collecting plate 662 and the water collecting chamber 62.

[0043] When the water in the water collecting chamber 62 needs to be drained, the reciprocating member drives the water collecting plate 662 back and forth, and the water collecting plate 662 moves in the sliding groove 672 under the support of the sliding block 671, and the water collecting plate 662 is rocked back and forth to allow the water droplets attached to the water collecting plate 662 to slide into the water collecting chamber 62. By rocking the water collecting plate 662 back and forth when the water collecting chamber 62 is draining, the water droplets on the water collecting plate 662 can fall into the water collecting chamber 62, thereby reducing the possibility of water droplets still attached to the water collecting plate 662 after drainage.

[0044] Reference Figure 2 and Figure 4 The reciprocating member includes a reciprocating motor 6732 fixed on the water collecting chamber 62 , the output end of the reciprocating motor 6732 passes through the water collecting chamber 62 , the output end of the reciprocating motor 6732 is eccentrically fixedly connected to the reciprocating wheel 6731 , and the side of the reciprocating wheel 6731 is in conflict with the water collecting plate 662 .

[0045] When the water collecting plate 662 is allowed to swing back and forth, the reciprocating motor 6732 drives the reciprocating wheel 6731 to rotate, and the output end of the reciprocating motor 6732 drives the reciprocating wheel 6731 to rotate eccentrically. The edge of the reciprocating wheel 6731 pushes the water collecting plate 662 back and forth, and the water collecting plate 662 moves back and forth. By allowing the reciprocating wheel 6731 to rotate eccentrically, the edge of the reciprocating wheel 6731 contacts the water collecting plate 662 back and forth, thereby facilitating the water collecting plate 662 to move back and forth.

[0046] Reference Figure 2 and Figure 4 A return spring 674 is disposed in the sliding groove 672 , and both ends of the return spring 674 are fixedly connected to the support frame 661 and the sliding block 671 .

[0047] When the edge of the reciprocating wheel 6731 contacts the water collecting plate 662 back and forth, allowing the water collecting plate 662 to move under the support of the sliding block 671, the sliding block 671 squeezes the reset spring 674 when moving, and the reset spring 674 pushes the sliding block 671 to always be in the direction of the reciprocating wheel 6731, so that the water collecting plate 662 always contacts the reciprocating wheel 6731. Under the push of the reset spring 674, the water collecting plate 662 can always contact the reciprocating wheel 6731 when moving back and forth, thereby improving the stability of the movement of the water collecting plate 662.

[0048] Reference Figure 2 , Figure 4 and Figure 5 The auxiliary drainage mechanism includes a drain pipe 76 fixed on the water collecting chamber 62, the drain pipe 76 is connected to the water collecting chamber 62, a drain valve 77 is fixed on the drain pipe 76, a water level sensor 78 is fixed in the water collecting chamber 62, a drain plug 72 is slidably connected in the drain pipe 76, a plurality of drain holes 73 are opened on the drain plug 72, a rubber sheet 74 is fixed on the drain plug 72, a support rod 71 is fixed on the drain plug 72, and a reciprocating component 2 is arranged between the support rod 71 and the water collecting plate 662.

[0049] When the water in the water collecting tank 62 accumulates to the water level sensor 78, a reminder is issued, and then the water collecting tank 62 is replaced, allowing hydrogen to pass through another water collecting tank 62, and then the drain valve 77 on the drain pipe 76 is opened to allow the water in the water collecting tank 62 to be discharged from the drain pipe 76. The reciprocating wheel 6731 drives the water collecting plate 662 to move back and forth. At the same time, the water collecting plate 662 drives the reciprocating component 2, and the reciprocating component 2 drives the support rod 71, so that the support rod 71 drives the drain plug 72, so that the water in the water collecting tank 62 passes through the drain hole 73 in one direction under the action of the rubber sheet 74, and then is discharged from the water collecting tank 62 faster under the push of the drain plug 72 and the rubber sheet 74, and the water in the water collecting tank 62 is discharged from the drain pipe 76 by opening the drain valve 77, and at the same time drives the drain plug 72, so that the drain plug 72 accelerates the speed of water flowing through the drain pipe 76 under the action of the rubber sheet 74, so that the accumulated water in the water collecting tank 62 can be easily drained and the drainage speed can be accelerated.

[0050] Reference Figure 2 and Figure 5The reciprocating assembly 2 includes a connecting rod 1 751 fixed on the water collecting plate 662, and a connecting rod 2 752 is fixed to one end of the connecting rod 1 751 away from the water collecting plate 662, and the connecting rod 2 752 is slidably connected to the support rod 71. When the water collecting plate 662 reciprocates, the water collecting plate 662 drives the connecting rod 1 751, and the connecting rod 1 751 drives the connecting rod 2 752, so that the support rod 71 moves along the connecting rod 2 752, and the support rod 71 moves up and down under the restriction of the drain plug 72, and the support rod 71 drives the drain plug 72 to move up and down. When the water collecting plate 662 reciprocates, the water collecting plate 662 drives the connecting rod 1 751, and the connecting rod 1 751 drives the connecting rod 2 752, and the connecting rod 2 752 drives the support rod 71 to reciprocate, so that the water collecting plate 662 can move while the drain plug 72 moves.

[0051] Working principle: When using the pressure reduction system, first connect several delivery pipes 1 to the corresponding hydrogen transport vehicles, and then the high-pressure hydrogen enters the delivery pipe 1, and the pressure gauge 4 monitors the pressure of the hydrogen, and then the hydrogen passes through the pressure regulator 9, and the pressure regulator 9 reduces the pressure of the hydrogen, and then the pressure gauge 25 monitors the pressure of the hydrogen after the pressure reduction, and then the hydrogen enters the delivery pipe 22, the hydrogen moves in the delivery pipe 22, and then the hydrogen enters the delivery pipe 33 from the delivery pipe 22, and the hydrogen pressure is adjusted again by the pressure regulator 211, and then the pressure gauge 310 on the delivery pipe 33 monitors the hydrogen pressure in the delivery pipe 33, and then the hydrogen enters the delivery pipe 1 again, and the hydrogen after the pressure reduction is further processed, which can meet the needs of large flow supply, and at the same time can take into account the convenience and safety of replacing the hydrogen tank truck.

[0052] After the high-pressure hydrogen is depressurized by the pressure regulator 9 on the delivery pipe 1, the hydrogen enters the delivery pipe 22 with the water vapor under the push of the subsequent hydrogen. When the hydrogen passes through the lower part of the delivery pipe 2, the hydrogen enters the water collecting tank 62 from one end of the water collecting pipe with the water vapor. The hydrogen with the water vapor passes through the water collecting plate 662 on the support frame 661. A number of honeycomb holes are provided on the water collecting plate 662 to increase the contact area between the water vapor and the water collecting plate 662. The water collecting plate 662 is made of metal. Then the water vapor gathers into water droplets on the water collecting plate 662. The water collecting plate 662 is tilted under the support of the support frame 661, and then the water droplets slide to the water collecting tank 6. 2, and then re-enters the delivery pipe 22. At the same time, the water droplets in the wall of the delivery pipe 22 also flow into the water collecting tank 62. When the water in the water collecting tank 62 accumulates to the water level sensor 78, a reminder is issued to close and open the corresponding valve 1 63 and valve 2 65. First, both valves 2 65 are opened, and then the valve 1 63 at the end of the empty water collecting tank 62 is opened, and then the valve 1 63 at the end of the water collecting tank 62 with water is closed to allow hydrogen to pass through the empty water collecting tank 62. After the hydrogen in the water collecting tank 62 with water enters the delivery pipe 22, the valve 2 65 on the water collecting tank 62 with water is closed to allow hydrogen to pass through the other water collecting tank 62.

[0053] Then open the drain valve 77 on the drain pipe 76 to drain the water in the water collecting tank 62 from the drain pipe 76. At the same time, the output end of the reciprocating motor 6732 drives the reciprocating wheel 6731 to rotate eccentrically. The edge of the reciprocating wheel 6731 pushes the water collecting plate 662 back and forth, allowing the water collecting plate 662 to move back and forth, allowing the water droplets on the water collecting plate 662 to fall off. While the water collecting plate 662 moves back and forth, the water collecting plate 662 drives the connecting rod 1 751, and the connecting rod 1 751 drives the connecting rod 2 752, allowing the support rod 71 to move along the connecting rod 2 752, allowing the support rod 71 to move up and down under the restriction of the drain plug 72, allowing the support rod 71 to drive the drain plug 72 to move up and down, allowing the water in the water collecting tank 62 to pass through the drain hole 73 in one direction under the action of the rubber sheet 74, and then be discharged from the water collecting tank 62 faster under the push of the drain plug 72 and the rubber sheet 74.

Claims

1. A hydrogen depressurization system, comprising a delivery pipe 2 (2), characterized in that: One end of the delivery pipe 2 (2) is provided with four delivery pipes 1 (1), the four delivery pipes 1 (1) are fixedly connected to the delivery pipe 2 (2) and are interconnected, a pressure gauge 1 (4) is fixed on the delivery pipe 1 (1), a pressure gauge 2 (5) is fixed on the delivery pipe 1 (1), a pressure regulator 1 (9) is provided between the pressure gauge 1 (4) and the pressure gauge 2 (5), the pressure regulator 1 (9) is fixedly connected to the delivery pipe 1 (1), a manual two-way valve (8) is provided on the side of the pressure gauge 2 (5) away from the pressure gauge 1 (4), the manual two-way valve (8) is connected to the pressure gauge 1 (4), and the pressure gauge 1 (9) is connected to the pressure gauge 1 (4). The delivery pipe 1 (1) is fixedly connected, and two delivery pipes 3 (3) are fixedly connected to the delivery pipe 2 (2), and the two delivery pipes 3 (3) are fixedly connected to the delivery pipe 2 (2) and are interconnected, a manual two-way valve (8) is fixedly connected to the delivery pipe 3 (3), a pressure regulator 2 (11) is fixedly connected to the delivery pipe 3 (3), a pressure gauge 3 (10) is fixedly connected to the delivery pipe 3 (3), a safety valve (12) is fixedly connected to the delivery pipe 3 (3), a water collecting mechanism (6) is provided on the delivery pipe 2 (2), and an auxiliary drainage mechanism (7) is provided on the delivery pipe 2 (2); The water collecting mechanism (6) comprises a water collecting pipe 1 (61) fixed on the conveying pipe 2 (2), the water collecting pipe 1 (61) being connected to the conveying pipe 2 (2), a water collecting pipe 2 (64) being fixed on the conveying pipe 2 (2), the water collecting pipe 2 (64) being connected to the conveying pipe 2 (2), two symmetrical water collecting chambers (62) being arranged between the water collecting pipe 1 (61) and the water collecting pipe 2 (64), the two water collecting chambers (62) being fixed to the water collecting pipe 1 (61) and the water collecting pipe 2 (64) and being connected to each other, two symmetrical valves 1 (63) being fixed on the water collecting pipe 1 (61), two symmetrical valves 2 (65) being fixed on the water collecting pipe 2 (64), a water collecting auxiliary component (66) being arranged in the water collecting chamber (62), and a reciprocating component 1 (67) being arranged on the water collecting chamber (62); The water collection auxiliary component (66) comprises a support frame (661) fixed in the water collection chamber (62), a water collection plate (662) is arranged in the support frame (661), the water collection plate (662) is provided with evenly distributed honeycomb holes, and the support frame (661) is arranged in an inclined manner; The auxiliary drainage mechanism (7) comprises a drainage pipe (76) fixed on the water collecting chamber (62), the drainage pipe (76) being in communication with the water collecting chamber (62), a drainage valve (77) being fixed on the drainage pipe (76), a water level sensor (78) being fixed in the water collecting chamber (62), a drainage plug (72) being slidably connected in the drainage pipe (76), a plurality of drainage holes (73) being provided on the drainage plug (72), a rubber sheet (74) being fixed on the drainage plug (72), a support rod (71) being fixed on the drainage plug (72), and a reciprocating component 2 (75) being provided between the support rod (71) and the water collecting plate (662); The reciprocating assembly 2 (75) comprises a connecting rod 1 (751) rolled on the water collecting plate (662), a connecting rod 2 (752) being fixed to one end of the connecting rod 1 (751) away from the water collecting plate (662), and the connecting rod 2 (752) is slidably connected to the support rod (71).

2. A hydrogen depressurization system according to claim 1, characterized in that: The reciprocating component 1 (67) comprises a sliding block (671) fixed on the water collecting plate (662); a sliding groove (672) is provided on the supporting frame (661); the sliding block (671) is located in the sliding groove (672) and is slidably connected to the supporting frame (661); and a reciprocating member (673) is provided between the water collecting plate (662) and the water collecting chamber (62).

3. A hydrogen depressurization system according to claim 2, characterized in that: The reciprocating member (673) comprises a reciprocating motor (6732) fixed on the water collecting chamber (62); the output end of the reciprocating motor (6732) passes through the water collecting chamber (62); the output end of the reciprocating motor (6732) is eccentrically fixedly connected to a reciprocating wheel (6731); and the side edge of the reciprocating wheel (6731) is in contact with the water collecting plate (662).

4. A hydrogen depressurization system according to claim 3, characterized in that: A return spring (674) is disposed in the sliding groove (672), and both ends of the return spring (674) are fixedly connected to the support frame (661) and the sliding block (671).

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