Large-capacity and highly-integrated vehicle-mounted hydrogen storage and supply device

Abstract

A large-capacity and highly-integrated vehicle-mounted hydrogen storage and supply device, comprising two multi-hydrogen storage cylinder modules (1), two hydrogen supply pipes (2) and two hydrogen refueling ports (3), wherein a plurality of groups of hydrogen storage cylinders (4) are provided in each multi-hydrogen storage cylinder module (1), the tail ends of each group of hydrogen storage cylinders (4) are connected in series to a tail valve PRD centralized vent port by means of pipelines, and the front ends thereof are in communication with cylinder valves (5); one end of each cylinder valve (5) is in communication with a main pipeline, and the other end of the cylinder valve (5) is connected in series to a cylinder valve TPRD centralized vent port; the two hydrogen refueling ports (3) and the two hydrogen supply pipes (2), which are oppositely arranged, are connected to the main pipeline; each hydrogen refueling port (3) is connected to the main pipeline by means of a hydrogen refueling pipeline, and a filter and a one-way valve are provided on the hydrogen refueling pipeline; and a filter and a primary pressure reducing valve (7) are provided on each hydrogen supply pipe (2), and after the primary pressure reducing valve (7), the pipe branches into three pipelines, which are respectively connected to an unloading valve, a solenoid valve, and a needle valve. The device has a compact structure, a high degree of modularization, integration degree and space utilization rate, facilities the whole locomotive arrangement, has a reliable structure, and is easy to popularize.

Description

A large-capacity, highly integrated vehicle-mounted hydrogen storage and supply device Technical Field

[0001] The present invention relates to the technical field of large-capacity and highly integrated on-board hydrogen storage and supply devices, and in particular to a large-capacity and highly integrated on-board hydrogen storage and supply device. Background Art

[0002] Hydrogen energy has achieved certain applications in the transportation field. The on-board hydrogen supply system is the main energy storage on the vehicle and an important component for ensuring the safe supply of hydrogen. The on-board hydrogen supply systems that are maturely used in mainstream industries such as passenger cars, commercial vehicles, and heavy trucks have a small hydrogen storage capacity, which is far from meeting the large hydrogen storage capacity needs of the rail transit industry. In particular, the rail transit heavy-duty locomotives require a hydrogen storage capacity of more than hundreds of kilograms, which places stringent requirements on the reasonable design and safety design of the on-board hydrogen supply system. The on-board hydrogen supply system of the present invention is based on a multi-bottle group of high-pressure hydrogen storage cylinders, while taking into account the system safety design, fully considering the locomotive application scenarios and working conditions, and can meet the hydrogen storage and supply needs of most locomotives. Technical issues

[0003] In order to overcome the existing deficiencies, the present invention provides a large-capacity and highly integrated vehicle-mounted hydrogen storage and supply device. Technical Solutions

[0004] The technical solution adopted by the present invention to solve its technical problems is: a large-capacity and highly integrated vehicle-mounted hydrogen storage and supply device, characterized in that it includes two groups of multi-hydrogen storage bottle modules, two groups of hydrogen supply pipes and two groups of hydrogen refueling ports; one group of the multi-hydrogen storage bottle modules is provided with several groups of hydrogen storage bottles, each group of hydrogen storage bottles is connected to a centralized discharge port through a pipeline, and a bottle valve is installed at the front end; the bottle valve is provided with a temperature sensor and a high-pressure sensor installation interface, one end is connected to the main line, and the other end is connected in series to the bottle valve TPRD centralized discharge port; two groups of hydrogen refueling ports and two groups of hydrogen supply pipes with hedging settings are connected to the main line; the hydrogen refueling port is connected to the main line through a hydrogen refueling pipeline, and a filter and a one-way valve are provided on the hydrogen supply pipe; a filter and a first-level pressure reducing valve are provided on the hydrogen supply pipe, and the first-level pressure reducing valve branches into three pipelines, which are respectively connected to an unloading valve, a solenoid valve and a needle valve.

[0005] According to another embodiment of the present invention, the module further includes hydrogen storage bottles in each group of the multi-hydrogen storage bottle module, the hydrogen storage bottles are divided into several groups, and each group of hydrogen storage bottles is fixed to the mounting frame by a clamp with a vibration damping device.

[0006] According to another embodiment of the present invention, the mounting frame is further fixed on a bracket of the hydrogen storage chamber; a plurality of groups of HMS hydrogen controllers are provided on the mounting frame, and a plurality of groups of hydrogen concentration sensors are provided on the top.

[0007] According to another embodiment of the present invention, it further includes that a PRD discharge device is provided at the tail end of each group of hydrogen storage bottles, and the PRD discharge device is connected to a centralized discharge port through a pipeline.

[0008] According to another embodiment of the present invention, it further includes that one end of the bottle valve of each group of hydrogen storage bottles is connected in series with the main pipeline through a branch pipeline, and the other end is connected in series with the bottle valve TPRD centralized discharge port through a pipeline.

[0009] According to another embodiment of the present invention, it further comprises several groups of the hydrogen storage bottles, wherein the bottle valves of the first and last hydrogen storage bottles are equipped with high-pressure pressure sensors.

[0010] According to another embodiment of the present invention, further comprising: a medium pressure sensor is provided on the first-stage pressure reducing valve.

[0011] According to another embodiment of the present invention, the unloading valve is further connected to the N6 unloading exhaust port, the solenoid valve is connected to the N5 fuel cell stack hydrogen inlet through a metal hose, and the needle valve is connected to the N2 port. Beneficial effects

[0012] Beneficial effects of the present invention:

[0013] 1. This on-board hydrogen supply system adopts a dual hydrogen supply pipe and dual hydrogen refueling port design to increase system reliability and hydrogen refueling convenience;

[0014] 2. The use of multiple hydrogen storage cylinder modules has high integration and large hydrogen storage capacity. Dual hydrogen storage modules are used, and maintenance space is reserved between the two hydrogen storage modules. The system valves and pipelines are integrated in this space, which increases the convenience of system maintenance.

[0015] 3. In terms of pipeline layout, considering safety leakage, several cylinder groups are connected in series and connected to the main pipeline through a pipeline, which reduces pipeline joints and thus reduces leakage points;

[0016] 4. In addition, several hydrogen concentration sensors are arranged on the top of the hydrogen storage chamber to monitor possible leakage of the system in real time;

[0017] 5. Pressure sensors are installed in both the high-pressure and medium-pressure parts of the on-board hydrogen supply system to monitor the system pressure status in real time;

[0018] 6. The TPRD device at the cylinder valve can quickly discharge the gas in the pressure relief system in an emergency;

[0019] 7. The entire system has a compact structure, high modularity, integration, and space utilization, making it easy to arrange the entire locomotive. It is reliable, simple to install on site, and significantly reduces costs. This structure is innovative and worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] FIG1 is an electrical connection diagram of the present invention;

[0022] FIG2 is a structural diagram of the present invention;

[0023] FIG3 is a schematic structural diagram of AA in FIG2 .

[0024] In the figure, 1. Multi-hydrogen storage bottle module, 2. Hydrogen supply pipe, 3. Hydrogen filling port, 4. Hydrogen storage bottle, 5. Bottle valve, 6. High-pressure pressure sensor, 7. First-stage pressure reducing valve, 8. Mounting rack, 9. Hydrogen storage chamber, 10. Bracket, 11. HMS hydrogen controller, and 12. Hydrogen concentration sensor. Modes for Carrying Out the Invention

[0025] Figure 1 is a structural schematic diagram of the present invention, which is a large-capacity, highly integrated on-board hydrogen storage and supply device, including two groups of multi-hydrogen storage bottle modules 1, two groups of hydrogen supply pipes 2 and two groups of hydrogen refueling ports 3; one group of the multi-hydrogen storage bottle modules 1 is provided with several groups of hydrogen storage bottles 4, each group of hydrogen storage bottles 4 is connected to the centralized discharge port through a pipeline, and a bottle valve 5 is installed at the front end; the bottle valve 5 is provided with a temperature sensor and a high-pressure sensor installation interface, one end is connected to the main line, and the other end is connected in series to the bottle valve TPRD centralized discharge port; two groups of hydrogen refueling ports 3 and two groups of hydrogen supply pipes 2 with hedging settings are connected to the main line; the hydrogen refueling port 3 is connected to the main line through a hydrogenation pipeline, and the hydrogenation pipeline is provided with a filter and a one-way valve; the hydrogen supply pipe 2 is provided with a filter and a first-level pressure reducing valve 7, and the first-level pressure reducing valve 7 branches into three pipelines, which are respectively connected to an unloading valve, a solenoid valve and a needle valve.

[0026] Specifically, a hydrogen refueling port 3 is arranged on each side of the locomotive, which can provide hydrogen refueling operations at the same time, making it convenient for hydrogen refueling on either side of the locomotive, and improving convenience and speed; the hydrogen supply pipe 2 adopts a dual-pipeline layout, and the complementary hydrogen supply improves the reliability of the system; the bottle valve 5 is integrated with a temperature sensor to monitor the safety status of the system; a dual hydrogen storage module 1 is used, and a maintenance space is reserved in the middle of the module, and the system pipeline joints are integrated in this area to facilitate maintenance and system leakage monitoring.

[0027] According to another embodiment of the present invention, it further includes: each group of hydrogen storage bottles 4 of the multi-hydrogen storage bottle module 1, the hydrogen storage bottles 4 are divided into several groups, and each group of hydrogen storage bottles 4 is fixed to the mounting frame 8 by a clamp with vibration damping.

[0028] According to another embodiment of the present invention, the mounting frame 8 is further fixed on the bracket 10 of the hydrogen storage chamber 9; a plurality of groups of HMS hydrogen controllers are provided on the mounting frame 8, and a plurality of groups of hydrogen concentration sensors 12 are provided on the top to improve system safety.

[0029] According to another embodiment of the present invention, a PRD discharge device is further provided at the tail end of each group of hydrogen storage bottles 4, and each discharge device is connected to the main discharge pipeline through a pipeline. When the hydrogen in the hydrogen bottle encounters an emergency such as high temperature fire, the hydrogen can be quickly discharged through the centralized discharge port.

[0030] According to another embodiment of the present invention, it further includes that one end of the bottle valve 5 of each group of hydrogen storage bottles 4 is connected in series with the main pipeline through a branch pipeline, and the other end is connected in series with the bottle valve TPRD centralized discharge port through a pipeline.

[0031] Specifically, the mounting bracket 8 of the on-board hydrogen supply system is ensured through simulation calculations to ensure that the strength and vibration impact meet the design requirements. Multiple hydrogen storage bottles 4 are fixed to the mounting bracket 8 by vibration-damping clamps, fully considering maintainability; several hydrogen storage bottles 4 are connected to the main pipeline through pipelines as a small module, reducing the number of joint connection points.

[0032] According to another embodiment of the present invention, it further comprises several groups of hydrogen storage bottles 4 , wherein the bottle valves 5 of the first and last hydrogen storage bottles 4 are installed with high-pressure pressure sensors 6 .

[0033] According to another embodiment of the present invention, a medium pressure sensor is provided on the first-stage pressure reducing valve 7 to monitor the pipeline pressure status in real time and transmit it to the driver's display screen.

[0034] According to another embodiment of the present invention, the unloading valve is further connected to the N6 unloading exhaust port, the solenoid valve is connected to the N5 fuel cell stack hydrogen inlet through a metal hose, and the needle valve is connected to the N2 port.

[0035] When the first pressure sensor 2 detects that the hydrogen storage tank 5 is full of hydrogen, the hydrogen filling port 54 is automatically closed, and the ground coolant inlet valve 4 and the ground coolant outlet valve 6 are closed at the same time, completing the hydrogen filling process.

[0036] The specific operation process is that the hydrogenation process is to connect the hydrogenation port 3 of the hydrogen storage bottle 4 from the ground hydrogenation station through a hydrogenation gun. The hydrogenation process is an exothermic reaction. The pressure value change is monitored by the high-pressure pressure sensor 6 set at the first and last two hydrogen storage bottles 4. Then, when it is detected that the hydrogen storage tank 4 is full of hydrogen, the hydrogenation port 3 is automatically closed, and the hydrogenation port 3 is set on the main pipeline to stabilize the pressure in the bottle.

[0037] The above description is only illustrative of the present invention and not restrictive. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the appended claims, but all of them will fall within the scope of protection of the present invention.

Claims

1. A large-capacity and highly integrated on-vehicle hydrogen storage and supply device, characterized in that It includes two groups of multi-hydrogen storage cylinder modules (1), two groups of hydrogen supply pipes (2) and two groups of hydrogen filling ports (3); several groups of hydrogen storage cylinders (4) are arranged in one group of the multi-hydrogen storage cylinder modules (1), and each group of hydrogen storage cylinders (4) is connected to a centralized discharge port through a pipeline, and a cylinder valve (5) is installed at the front end; temperature sensor and high-pressure sensor installation interfaces are provided on the cylinder valve (5), one end is communicated with the main pipeline, and the other end is connected in series to the centralized discharge port of the cylinder valve TPRD; two groups of hydrogen filling ports (3) and two groups of hydrogen supply pipes (2) which are arranged in a counter-flush manner are connected to the main pipeline; the hydrogen filling port (3) is connected to the main pipeline through a hydrogen filling pipeline, and a filter and a one-way valve are provided on the hydrogen filling pipeline; filters and a primary pressure reducing valve (7) are provided on the hydrogen supply pipe (2), and after the primary pressure reducing valve (7), it branches into three pipelines, which are respectively connected to a relief valve, a solenoid valve and a needle valve.

2. The large-capacity and highly integrated in-vehicle hydrogen storage and supply device according to claim 1, wherein For the hydrogen storage cylinders (4) of each group of the multi-hydrogen storage cylinder modules (1), the hydrogen storage cylinders (4) are divided into several groups, and each group of hydrogen storage cylinders (4) is fixed on the mounting rack (8) through a shock-absorbing clamp.

3. The large-capacity and highly integrated in-vehicle hydrogen storage and supply device according to claim 2, wherein, The mounting rack (8) is fixed on the bracket (10) of the hydrogen storage chamber (9); several groups of HMS hydrogen controllers are provided on the mounting rack (8), and several groups of hydrogen concentration sensors (12) are provided on the top.

4. The high-capacity and highly integrated in-vehicle hydrogen storage and supply device according to claim 2, wherein A PRD relief device is arranged at the tail end of each group of the hydrogen storage cylinders (4), and the PRD relief device is connected to the centralized discharge port through a pipeline.

5. The large-capacity and highly integrated in-vehicle hydrogen storage and supply device according to claim 2, characterized in that, One end of the cylinder valve (5) of each group of the hydrogen storage cylinders (4) is connected in series through a branch pipeline and communicated with the main pipeline, and the other end is connected in series and then connected to the centralized discharge port of the cylinder valve TPRD through a pipeline.

6. The high-capacity and highly integrated on-vehicle hydrogen storage and supply device according to claim 2, wherein For several groups of the hydrogen storage cylinders (4), high-pressure pressure sensors (6) are installed on the cylinder valves (5) of the first and the last hydrogen storage cylinders (4).

7. The large-capacity and highly integrated vehicle-mounted hydrogen storage and supply device according to claim 1, characterized in that, A medium-pressure pressure sensor is provided on the primary pressure reducing valve (7).

8. The high-capacity and highly integrated in-vehicle hydrogen storage and supply device according to claim 1, characterized in that, The relief valve is connected to the N6 relief exhaust port, the solenoid valve is connected to the N5 fuel cell hydrogen inlet through a metal hose, and the needle valve is connected to the N2 port.

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