A hydrogen gas hydrogen charging system
Patent Information
- Application Number
- CN202522013165.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-09-17
AI Technical Summary
[0004]本实用新型为了弥补现有技术的不足，提供了一种气氢加氢充电系统，解决了加氢撬装站中压缩机的进排气温度控制的问题，解决了以往的加氢撬装站功能单一空间利用不足的问题
[0012]通过在压缩机的前侧设置进气冷却器，可以对长罐拖车内的氢气进行降温然后再进入压缩机，对压缩机起到保护作用，在压缩机的后侧设置排气冷却器，可以对压缩机排出的氢气进行降温然后再进入加氢枪进行加注，以满足汽车对氢气的温度要求，通过第一冷水机组对进气冷却器提供冷源，通过第二冷水机组对压缩机和排气冷却器提供冷源，保证了进气冷却器、压缩机和排气冷却器的冷源需求，实现了加氢撬装站中压缩机进排气温度的合理控制；长罐拖车内的氢气还可经第一减压阀减压后供入氢燃料电池，氢燃料电池工作时产生的电能可供入充电桩，实现对电车的充电功能，充分利用加氢撬装站的能源及空间优势，对充电设施起到很好的补充作用。
Smart Images
Figure CN224872285U_ABST
Abstract
Description
Technical fields:
[0001] This utility model relates to the field of gaseous hydrogen refueling technology, and in particular to a gaseous hydrogen refueling and charging system. Background technology:
[0002] Currently, in existing hydrogen refueling skid-mounted stations, the hydrogen in the long-tank trailer needs to be pressurized by a compressor before refueling to improve refueling efficiency. Because the hydrogen temperature inside the long-tank trailer is high, the compressor also generates a lot of heat during operation, which can cause the compressor to overheat and become unable to operate for extended periods. Furthermore, the high-pressure hydrogen discharged from the compressor also needs to be cooled before refueling the vehicle. Therefore, it is necessary to reasonably control the intake and exhaust temperatures of the compressor. In addition, current hydrogen refueling skid-mounted stations generally only have hydrogen refueling capabilities, which is relatively limited. Since the market share of hydrogen fuel cell vehicles is currently small, while the market share of electric vehicles is already large, charging infrastructure is severely insufficient. If hydrogen could be used to generate electricity at the hydrogen refueling skid-mounted station and then used to charge electric vehicles via charging stations, it would effectively supplement the charging infrastructure and fully utilize the energy and space advantages of the hydrogen refueling skid-mounted station. Currently, there is no good solution to the above problems.
[0003] In summary, the aforementioned problems in the process of hydrogenation of gaseous hydrogen have become technical challenges that urgently need to be addressed in the industry. Utility Model Content:
[0004] To overcome the shortcomings of existing technologies, this utility model provides a gaseous hydrogen refueling and charging system, which solves the problem of compressor intake and exhaust temperature control in hydrogen refueling skid-mounted stations and addresses the issues of limited functionality and insufficient space utilization in previous hydrogen refueling skid-mounted stations.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:
[0006] A hydrogen refueling and charging system includes a long tank trailer storing hydrogen. The outlet of the long tank trailer is connected to the inlet of an intake cooler via a pipeline, which passes through an intake filter and an intake check valve. The outlet of the intake cooler is connected to the inlet of a compressor via a pipeline. The outlet of the compressor is connected to the inlet of an exhaust cooler via a pipeline. The outlet of the exhaust cooler is connected to a hydrogen refueling nozzle via a pipeline, which passes through an exhaust check valve and an exhaust filter. A high-pressure hydrogen storage cylinder is connected to one side of the pipeline after the exhaust filter. The intake cooler is connected to a first chiller unit via a first circulating water pipeline and a first circulating pump. The compressor and the exhaust cooler are connected to a second chiller unit via a second circulating water pipeline and a second circulating pump. The pipeline between the intake filter and the intake check valve is connected to a hydrogen fuel cell via a first switching valve and a first pressure reducing valve. The hydrogen fuel cell is connected to a charging pile.
[0007] The high-pressure hydrogen storage cylinder assembly is connected to the hydrogen fuel cell via pipelines, a second switching valve, and a second pressure reducing valve.
[0008] Temperature sensors are installed on the pipes behind the intake cooler, compressor, and exhaust cooler.
[0009] The exhaust check valve is connected to the intake cooler via a return pipe, a return switch valve, and a return check valve.
[0010] The first circulating water pipeline and the second circulating water pipeline are respectively connected to the drain outlet via a drain valve.
[0011] The present invention adopts the above solution and has the following advantages:
[0012] By installing an intake cooler at the front of the compressor, the hydrogen in the long tank trailer can be cooled before entering the compressor, thus protecting the compressor. An exhaust cooler at the rear of the compressor cools the hydrogen discharged from the compressor before it enters the refueling nozzle, meeting the temperature requirements of the hydrogen for vehicles. A first chiller unit provides cooling to the intake cooler, and a second chiller unit provides cooling to the compressor and exhaust cooler, ensuring the cooling needs of these components and achieving reasonable control of the compressor's intake and exhaust temperatures in the hydrogen refueling skid-mounted station. The hydrogen in the long tank trailer can also be depressurized by a first pressure reducing valve before being supplied to the hydrogen fuel cell. The electricity generated by the hydrogen fuel cell can be used to charge electric vehicles, fully utilizing the energy and space advantages of the hydrogen refueling skid-mounted station and effectively supplementing the charging infrastructure. Attached image description:
[0013] Figure 1 This is a schematic diagram of the structural principle of this utility model.
[0014] In the diagram, 1. Long tank trailer, 2. Intake filter, 3. Intake check valve, 4. Intake cooler, 5. Compressor, 6. Exhaust cooler, 7. Exhaust check valve, 8. Exhaust filter, 9. Hydrogen refueling nozzle, 10. High-pressure hydrogen storage tank assembly, 11. First circulating water pipeline, 12. First circulating pump, 13. First chiller unit, 14. Second circulating water pipeline, 15. Second circulating pump, 16. Second chiller unit, 17. First switching valve, 18. First pressure reducing valve, 19. Hydrogen fuel cell, 20. Charging pile, 21. Second switching valve, 22. Second pressure reducing valve, 23. Temperature sensor, 24. Return pipeline, 25. Return switching valve, 26. Return check valve, 27. Drain valve, 28. Drain outlet. Detailed implementation method:
[0015] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.
[0016] like Figure 1 As shown, a gaseous hydrogen refueling and charging system includes a long tank trailer 1, which stores hydrogen gas. The outlet of the long tank trailer 1 is connected to the inlet of an intake cooler 4 via a pipeline, passing through an intake filter 2 and an intake check valve 3. The outlet of the intake cooler 4 is connected to the inlet of a compressor 5 via a pipeline. The outlet of the compressor 5 is connected to the inlet of an exhaust cooler 6 via a pipeline. The outlet of the exhaust cooler 6 is connected to a hydrogen refueling nozzle 9 via an exhaust check valve 7 and an exhaust filter 8 via a pipeline. The pipeline after the exhaust filter 8 is connected to a high-pressure hydrogen storage cylinder group 10. The intake air cooler 4 is connected to the first chiller unit 13 via the first circulating water pipeline 11 and the first circulating pump 12. The compressor 5 and the exhaust air cooler 6 are connected to the second chiller unit 16 via the second circulating water pipeline 14 and the second circulating pump 15. The pipeline between the intake air filter 2 and the intake one-way valve 3 is connected to the hydrogen fuel cell 19 via the first switching valve 17 and the first pressure reducing valve 18. The hydrogen fuel cell 19 is connected to the charging pile 20.
[0017] The high-pressure hydrogen storage cylinder group 10 is connected to the hydrogen fuel cell 19 via a pipeline through the second switching valve 21 and the second pressure reducing valve 22. The hydrogen required for the operation of the hydrogen fuel cell 19 is mainly supplied by the long tank trailer 1. When the hydrogen in the long tank trailer 1 is insufficient, the second switching valve 21 is opened, and the hydrogen in the high-pressure hydrogen storage cylinder group 10 can be depressurized by the second pressure reducing valve 22 and then supplied to the hydrogen fuel cell 19. Similarly, the hydrogen in the high-pressure hydrogen storage cylinder group 10 can also be supplied to the hydrogen refueling gun 9.
[0018] Temperature sensors 23 are installed on the pipelines behind the intake cooler 4, compressor 5, and exhaust cooler 6. These sensors can monitor the temperature of hydrogen entering the compressor 5, the temperature of hydrogen discharged from the compressor 5, and the temperature of hydrogen cooled by the exhaust cooler 6, ensuring that they meet the specified requirements.
[0019] The exhaust check valve 7 is connected to the pipeline in front of the intake cooler 4 via the return pipe 24, the return switch valve 25, and the return check valve 26. When the hydrogen in the long tank trailer 1 is insufficient, the return switch valve 25 opens, and some of the hydrogen cooled by the exhaust cooler 6 will be replenished into the pipeline in front of the intake cooler 4 via the return pipe 24 and the return check valve 26, thereby ensuring the intake amount of hydrogen.
[0020] The first circulating water pipeline 11 and the second circulating water pipeline 14 are respectively connected to the drain outlet 28 via the drain valve 27. Opening the drain valve 27 can discharge sewage from the first circulating water pipeline 11 and the second circulating water pipeline 14.
[0021] Working principle:
[0022] During operation, the hydrogen in the long tank trailer 1 is filtered by the intake filter 2. One branch enters the hydrogen fuel cell 19 via the first switching valve 17 and the first pressure reducing valve 18. The electricity generated by the hydrogen fuel cell 19 during operation can be supplied to the charging pile 20 to charge the electric vehicle. The other branch supplies the intake cooler 4 via the intake check valve 3. The cooling water from the first chiller unit 13 enters the intake cooler 4 through the first circulating water pipeline 11 under the action of the first circulating pump 12, which can cool the hydrogen in the intake cooler 4 to meet the pressure requirements. The hydrogen gas enters the compressor 5 after meeting the required intake temperature. The compressor 5 pressurizes the hydrogen, and the discharged high-pressure hydrogen then enters the exhaust cooler 6. Cooling water from the second chiller unit 16, driven by the second circulating pump 15, enters the compressor 5 and exhaust cooler 6 via the second circulating water pipeline 14. This cools both the compressor 5 and the hydrogen in the exhaust cooler 6, ensuring they meet the vehicle's hydrogen refueling temperature requirements. The hydrogen then passes through the exhaust check valve 7 and exhaust filter 8 before being refueled into the vehicle via the refueling nozzle 9. A portion of the hydrogen discharged from the exhaust filter 8 can be stored in the high-pressure hydrogen storage tank group 10 for pressure stabilization. When the hydrogen in the long tank trailer 1 is insufficient, it can be used as backup hydrogen for the refueling nozzle 9 and the hydrogen fuel cell 19.
[0023] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.
[0024] Any aspects of this utility model not described in detail are known to those skilled in the art.
Claims
1. A gaseous hydrogen refueling and charging system, characterized in that: The system includes a long tank trailer storing hydrogen. The trailer's outlet is connected to the inlet of an intake cooler via a pipeline, passing through an intake filter and an intake check valve. The intake cooler's outlet is connected to the compressor's inlet via a pipeline. The compressor's outlet is connected to the exhaust cooler's inlet via a pipeline. The exhaust cooler's outlet is connected to a hydrogen refueling nozzle via a pipeline, passing through an exhaust check valve and an exhaust filter. A high-pressure hydrogen storage cylinder is connected to one side of the pipeline after the exhaust filter. The intake cooler is connected to a first chiller unit via a first circulating water pipeline and a first circulating pump. The compressor and exhaust cooler are connected to a second chiller unit via a second circulating water pipeline and a second circulating pump. The pipeline between the intake filter and the intake check valve is connected to a hydrogen fuel cell via a first switching valve and a first pressure reducing valve. The hydrogen fuel cell is connected to a charging station.
2. The gaseous hydrogen refueling and charging system according to claim 1, characterized in that: The high-pressure hydrogen storage cylinder assembly is connected to the hydrogen fuel cell via pipelines, a second switching valve, and a second pressure reducing valve.
3. The gaseous hydrogen refueling and charging system according to claim 1, characterized in that: Temperature sensors are installed on the pipes behind the intake cooler, compressor, and exhaust cooler.
4. The gaseous hydrogen refueling and charging system according to claim 1, characterized in that: The exhaust check valve is connected to the intake cooler via a return pipe, a return switch valve, and a return check valve.
5. The gaseous hydrogen refueling and charging system according to claim 1, characterized in that: The first circulating water pipeline and the second circulating water pipeline are respectively connected to the drain outlet via a drain valve.