CN112577769A - Hydrogen filling simulation test system - Google Patents

Hydrogen filling simulation test system Download PDF

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Publication number
CN112577769A
CN112577769A CN202011473676.4A CN202011473676A CN112577769A CN 112577769 A CN112577769 A CN 112577769A CN 202011473676 A CN202011473676 A CN 202011473676A CN 112577769 A CN112577769 A CN 112577769A
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CN
China
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pressure
pipeline
air inlet
low
joint
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CN202011473676.4A
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Inventor
朱文杰
任圣哲
王艳萍
张明俊
张爱国
王传谊
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Beijing Peric Hydrogen Technologies Co ltd
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Beijing Peric Hydrogen Technologies Co ltd
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Priority to CN202011473676.4A priority Critical patent/CN112577769A/en
Publication of CN112577769A publication Critical patent/CN112577769A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00

Abstract

The invention discloses a hydrogen filling simulation test system, which comprises a box body and a hydrogen transmission control assembly, wherein the box body is provided with a hydrogen inlet and a hydrogen outlet; the box body is provided with a high-pressure air inlet joint, a medium-pressure air inlet joint, a low-pressure air inlet joint, a high-pressure direct charging joint, a medium-pressure direct charging joint, a low-pressure direct charging joint, a flowmeter outlet joint, a pressure reducing valve outlet joint and a supply and storage equipment connecting joint; the hydrogen transmission control assembly comprises a high-pressure air inlet pipeline, a medium-pressure air inlet pipeline, a low-pressure air inlet pipeline, a flow metering pipeline, a pressure reducing pipeline and a circulation test pipeline; the flow metering pipeline and the pressure reducing pipeline are arranged in parallel. The hydrogen filling simulation test system can simulate the complete filling pipeline of the hydrogen station, realize multi-mode filling and complete various test projects, and provide test functions and various reliability test data for the construction of the 70MPa hydrogen station.

Description

Hydrogen filling simulation test system
Technical Field
The invention relates to the technical field of hydrogen energy, in particular to a hydrogen filling simulation test system.
Background
Hydrogen energy has gained general attention from countries in the world as a highly efficient, clean, sustainable "carbon-free" energy, and the transportation field mainly using hydrogen fuel cell vehicles is one of the important directions for hydrogen energy utilization. The bottleneck restricting the utilization and development of hydrogen energy in the traffic field at the present stage is mainly the construction of a hydrogenation station, and the shortage of hydrogenation infrastructure becomes the biggest obstacle facing the development of the hydrogen energy industry in China at present.
The hydrogen sources of the hydrogen station are mainly divided into two types of external hydrogen supply and in-station hydrogen production. The in-station hydrogen production and hydrogenation station is mature abroad, and the hydrogenation station in operation at home adopts an external hydrogen supply mode due to the restriction of various factors. However, with the continuous maturity of the technology and the continuous improvement of relevant laws and regulations in China, hydrogen production in the station is expected to become the future development trend of the hydrogen station in China. The hydrogen filling pressure of a hydrogen filling station is 35MPa and 70MPa at present; among them, the 35MPa filling pressure hydrogenation station is common, and its end user includes fuel cell bus, logistic bus, etc.; the number of hydrogenation stations with the filling pressure of 70MPa is less at present in China, and the end users of the hydrogenation stations are mainly cars and the like; therefore, it is urgently needed to provide a hydrogen filling simulation test system capable of being used for 70MPa filling pressure.
Disclosure of Invention
In view of this, the invention provides a hydrogen filling simulation test system, which can simulate a complete filling pipeline of a hydrogen filling station, realize filling in multiple modes and complete multiple test projects, and provide test functions and multiple reliability test data for the construction of a 70MPa hydrogen filling station.
The invention adopts the following specific technical scheme:
a hydrogen filling simulation test system comprises a box body and a hydrogen transmission control assembly arranged on the box body;
the box body is provided with a high-pressure air inlet joint, a medium-pressure air inlet joint, a low-pressure air inlet joint, a high-pressure direct charging joint, a medium-pressure direct charging joint, a low-pressure direct charging joint, a flowmeter outlet joint, a pressure reducing valve outlet joint and a supply and storage equipment connecting joint; the high-pressure air inlet joint, the medium-pressure air inlet joint and the low-pressure air inlet joint are used for connecting hydrogen sources with different pressures; the high-pressure direct charging connector, the medium-pressure direct charging connector and the low-pressure direct charging connector are used for connecting hydrogen storage equipment;
the hydrogen transmission control assembly comprises a high-pressure air inlet pipeline, a medium-pressure air inlet pipeline, a low-pressure air inlet pipeline, a flow metering pipeline, a pressure reducing pipeline and a circulation test pipeline;
the high-pressure air inlet pipeline is connected between the high-pressure air inlet joint and the high-pressure direct charging joint, and a high-pressure air inlet needle valve, a high-pressure air inlet pipeline pressure sensor, a high-pressure air inlet pressure gauge, a high-pressure air inlet pipeline pneumatic ball valve and a high-pressure direct charging needle valve are sequentially arranged in the high-pressure air inlet pipeline;
the medium-pressure air inlet pipeline is connected between the medium-pressure air inlet joint and the medium-pressure direct charging joint, and a medium-pressure air inlet needle valve, a medium-pressure air inlet pipeline pressure sensor, a medium-pressure air inlet pressure gauge, a medium-pressure air inlet pipeline pneumatic ball valve and a medium-pressure direct charging needle valve are sequentially arranged in the medium-pressure air inlet pipeline;
the low-pressure air inlet pipeline is connected between the low-pressure air inlet joint and the low-pressure direct charging joint, and a low-pressure air inlet needle valve, a low-pressure air inlet pipeline pressure sensor, a low-pressure air inlet pressure gauge, a low-pressure air inlet pipeline pneumatic ball valve and a low-pressure direct charging needle valve are sequentially arranged in the low-pressure air inlet pipeline;
the flow metering pipeline and the pressure reducing pipeline are arranged in parallel; the inlet of the flow metering pipeline and the inlet of the pressure reducing pipeline are communicated with the high-pressure air inlet pipeline, the medium-pressure air inlet pipeline and the low-pressure air inlet pipeline; the outlet of the flow metering pipeline is communicated with the outlet joint of the flowmeter; an outlet of the pressure reducing pipeline is communicated with the outlet joint of the pressure reducing valve;
a flow meter, a flow meter pipeline pressure sensor, a flow meter outlet pressure gauge, a flow meter pipeline pneumatic ball valve and a flow meter outlet needle valve are arranged in the flow metering pipeline;
the pressure reducing pipeline is internally provided with a pressure reducing valve, a needle valve at the outlet of the pressure reducing valve, a pressure sensor of the pipeline of the pressure reducing valve and a pressure gauge at the outlet of the pressure reducing valve;
circulation test tube coupling supply store up equipment attach fitting with the flow measurement pipeline install air supply import pressure gauge and air supply import needle valve in the circulation test pipeline, supply to store up equipment attach fitting 33 and be used for connecting nitrogen gas source or cooling system or hydrogen unloading equipment.
Furthermore, the box body is also provided with a booster pump inlet joint for connecting an inlet of a booster pump and a booster pump outlet joint for connecting an outlet of the booster pump;
the hydrogen transmission control assembly also comprises a pressurization air inlet pipeline and a pressurization air outlet pipeline;
the supercharging air inlet pipeline is connected with the inlet joint of the booster pump and the flow metering pipeline, and a supercharging air inlet pipeline pressure sensor, a supercharging air inlet pipeline one-way valve, a supercharging air inlet pipeline filter and a supercharging air inlet pipeline safety valve are installed in the supercharging air inlet pipeline;
the booster pump outlet pipeline is connected with the booster pump outlet connector and the flow metering pipeline, a booster air outlet pipeline filter, a low-pressure safety valve and a high-pressure safety valve which are connected in parallel are installed in the booster air outlet pipeline, and a low-pressure safety valve air inlet needle valve is installed in a low-pressure safety valve branch of the low-pressure safety valve.
Still further, the device also comprises a nitrogen purging component connected with the hydrogen transmission control component; the nitrogen purging assembly is used for evacuating hydrogen in the hydrogen transmission control assembly.
Furthermore, the nitrogen purging assembly comprises a nitrogen source connector, an emptying pipeline connector, a nitrogen inlet pressure gauge, a nitrogen inlet needle valve, a pressurizing pipeline emptying pressure gauge, a pressurizing pipeline emptying needle valve, a filling pipeline emptying pressure gauge, a filling pipeline emptying needle valve, a low-pressure emptying pipeline one-way valve, a purging pipeline one-way valve and a nitrogen purging pipeline;
the nitrogen source joint and the emptying pipeline joint are arranged on the box body; the nitrogen source joint is used for connecting the nitrogen source;
the nitrogen purging pipeline is connected between a nitrogen source connector and an emptying pipeline connector and is used for communicating the high-pressure air inlet pipeline, the medium-pressure air inlet pipeline, the low-pressure air inlet pipeline, the flow metering pipeline, the pressure reducing pipeline and the circulation testing pipeline; a nitrogen inlet pressure gauge, a nitrogen inlet needle valve and a purging pipeline one-way valve are arranged between the nitrogen source connector and the nitrogen purging pipeline; a low-pressure vent pipeline one-way valve is arranged between the nitrogen purging pipeline and the vent pipeline joint;
the pressurization pipeline emptying pressure gauge and the pressurization pipeline emptying needle valve are arranged in the pressurization air outlet pipeline;
the high-pressure air inlet pipeline, the medium-pressure air inlet pipeline and the low-pressure air inlet pipeline are all provided with a filling pipeline emptying pressure gauge and a filling pipeline emptying needle valve.
Further, the box body comprises a control panel at the top;
the high pressure directly fills the needle valve, the high pressure needle valve that admits air, the high pressure manometer that admits air, the medium pressure directly fills the needle valve, the medium pressure needle valve that admits air, the low pressure directly fills the needle valve the low pressure needle valve that admits air, the low pressure manometer that admits air, relief pressure valve export needle valve the relief pressure valve export manometer, flowmeter export needle valve the flowmeter export manometer nitrogen gas inlet manometer nitrogen gas admit air the needle valve the air source import manometer the air source import needle valve the pressure boost pipeline pressure gauge that empties, the pressure boost pipeline pressure needle valve that empties fill the pipeline pressure gauge fill the pipeline pressure that empties fill the pipeline pressure needle valve and the low pressure relief valve needle valve that admits air all install in control panel.
Furthermore, the box body further comprises a fixed bracket and a skin fixedly arranged on the outer peripheral side of the fixed bracket;
the control panel is installed on the top of the fixed support.
Furthermore, the high-pressure air inlet connector, the medium-pressure air inlet connector, the low-pressure air inlet connector, the high-pressure direct-charging connector, the medium-pressure direct-charging connector, the low-pressure direct-charging connector, the supply and storage equipment connecting connector, the booster pump inlet connector, the booster pump outlet connector, the nitrogen source connector and the emptying pipeline connector are all self-sealing through plate connectors and penetrate through the skin.
Still further, a controller is included; the controller is connected with the high-pressure air inlet pipeline pressure sensor, the medium-pressure air inlet pipeline pressure sensor, the low-pressure air inlet pipeline pressure sensor, the flowmeter pipeline pressure sensor, the flowmeter pipeline pneumatic ball valve, the pressure reducing valve pipeline pressure sensor and the pressurization air inlet pipeline pressure sensor.
Furthermore, the box body is made of an aluminum alloy material.
Furthermore, the box body is made of stainless steel materials.
Has the advantages that:
the hydrogen filling simulation test system comprises a box body and a hydrogen transmission control assembly, wherein the hydrogen transmission control assembly can realize three-stage rapid filling through low, medium and high pressure air inlet pipelines, and can perform hydrogen circulation test and multi-mode flow control through a flow metering pipeline, a pressure reducing pipeline and a circulation test pipeline; the hydrogen filling simulation test system with the structure has the characteristics of multiple functions, high integration, high reliability and the like, can simulate the complete filling pipeline of the hydrogen station, can realize filling in multiple modes and complete multiple test projects, and is convenient for providing test functions and multiple reliability test data for the construction of the 70MPa hydrogen station.
In addition, the hydrogen filling simulation test system can also evacuate gas in the pipeline through the additionally arranged nitrogen purging assembly, inerting is carried out on the gas in the pipeline, the pipeline is ensured to be in a non-pressure-bearing state or a low-pressure-bearing state, and the safety of the whole hydrogen filling simulation test system can be ensured through hydrogen in the evacuation pipeline.
Drawings
FIG. 1 is a schematic perspective view of a hydrogen filling simulation test system according to the present invention;
FIG. 2 is a top view of the hydrogen fill simulation test system of FIG. 1;
FIG. 3 is a left side view of the hydrogen filling simulation test system of FIG. 1;
FIG. 4 is a right side view of the hydrogen filling simulation test system of FIG. 1;
fig. 5 and 6 are schematic diagrams of internal structures of the hydrogen filling simulation test system in fig. 1.
Wherein, 1-high pressure air inlet joint; 2-a medium pressure air inlet joint; 3-a low pressure inlet connection; 4-high pressure direct filling needle valve; 5-high pressure air inlet needle valve; 6-high pressure air inlet pressure gauge; 7-medium pressure direct needle valve; 8-medium pressure air inlet needle valve; 9-a medium pressure air inlet pressure gauge; 10-low pressure direct filling needle valve; 11-low pressure inlet needle valve; 12-low pressure intake pressure gauge; 13-pressure reducing valve outlet needle valve; 14-a pressure relief valve; 15-pressure reducing valve outlet pressure gauge; 16-flow meter outlet needle valve; 17-flowmeter outlet pressure gauge; 18-nitrogen inlet pressure gauge; 19-nitrogen inlet needle valve; 20-gas source inlet pressure gauge; 21-gas source inlet needle valve; 22-pressure boost pipeline emptying pressure gauge; 23-emptying the needle valve of the pressurization pipeline; 24-emptying the pressure gauge by a filling pipeline; 25-emptying the needle valve of the filling pipeline; 26-low pressure safety valve inlet needle valve; 27-flow meter outlet connection; 28-relief valve outlet fitting; 29-low pressure direct charge connection; 30-medium pressure direct charging joint; 31-high pressure direct charging connector; a 32-nitrogen source connection; 33-supply and storage equipment connecting joint; 34-an emptying pipeline joint; 35-booster pump inlet connection; 36-booster pump outlet connection; 37-a skin; 38-control panel; 39-fixing the bracket; 40-high pressure air inlet pipeline pneumatic ball valve; 41-high pressure intake line pressure sensor; 42-flow meter line pressure sensor; 43-flow meter line pneumatic ball valve; 44-a flow meter; 45-pressure reducing valve line pressure sensor; 46-low pressure intake line pressure sensor; 47-low pressure inlet line pneumatic ball valve; 48-medium pressure inlet line pressure sensor; 49-medium pressure air inlet pipeline pneumatic ball valve; 50-main fill line pressure sensor; 51-high pressure relief valve; 52-low pressure relief valve; 53-low pressure relief line check valve; 54-a boost intake line pressure sensor; 55-a one-way valve of a pressurization air inlet pipeline; 56-a pressurized intake line filter; 57-a pressurized outlet line filter; 58-pressurization intake line safety valve; 59-purging pipeline one-way valve
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The invention provides a hydrogen filling simulation test system, wherein fig. 1 shows a three-dimensional structure schematic diagram of the hydrogen filling simulation test system, fig. 2 mainly shows a structural schematic diagram of a control panel 38, fig. 3 is a left side view of the hydrogen filling simulation test system, fig. 4 is a right side view of the hydrogen filling simulation test system, and fig. 5 and 6 respectively show internal structure schematic diagrams of the hydrogen filling simulation test system from the front side and the rear side; the hydrogen filling simulation test system comprises a box body and a hydrogen transmission control assembly arranged on the box body;
the box body comprises a control panel 38, a fixed bracket 39 and a skin 37 fixedly arranged on the outer periphery side of the fixed bracket 39; the control panel 38 is mounted on top of the fixed bracket 39; the fixed bracket 39 can be formed by connecting a plurality of rods and plates through bolts or welding, the skin 37 is fixed on the outer periphery side of the fixed bracket 39 through bolts, and a box body structure is formed by the skin 37 and the fixed bracket 39; the box body is made of an aluminum alloy material or a stainless steel material;
the box body is provided with a high-pressure air inlet joint 1, a medium-pressure air inlet joint 2, a low-pressure air inlet joint 3, a high-pressure direct charging joint 31, a medium-pressure direct charging joint 30, a low-pressure direct charging joint 29, a flowmeter outlet joint 27, a reducing valve outlet joint 28 and a supply and storage equipment connecting joint 33; the high-pressure air inlet joint 1, the medium-pressure air inlet joint 2 and the low-pressure air inlet joint 3 are used for connecting hydrogen sources with different pressures; the high-pressure direct charging connector 31, the medium-pressure direct charging connector 30 and the low-pressure direct charging connector 29 are used for connecting hydrogen storage equipment; as shown in the structure of fig. 4, a high-pressure air inlet joint 1, a medium-pressure air inlet joint 2 and a low-pressure air inlet joint 3 are arranged on the right side of the box body; as shown in the structure of fig. 3, a high-pressure direct charging connector 31, a medium-pressure direct charging connector 30, a low-pressure direct charging connector 29, a flowmeter outlet connector 27, a pressure reducing valve outlet connector 28 and a supply and storage equipment connecting connector 33 are arranged on the left side of the box body;
the hydrogen transmission control assembly comprises a high-pressure air inlet pipeline, a medium-pressure air inlet pipeline, a low-pressure air inlet pipeline, a flow metering pipeline, a pressure reducing pipeline and a circulation test pipeline;
the high-pressure air inlet pipeline is connected between the high-pressure air inlet joint 1 and the high-pressure direct charging joint 31, and a high-pressure air inlet needle valve 5, a high-pressure air inlet pipeline pressure sensor 41, a high-pressure air inlet pressure gauge 6, a high-pressure air inlet pipeline pneumatic ball valve 40 and a high-pressure direct charging needle valve 4 are sequentially arranged in the high-pressure air inlet pipeline;
the medium-pressure air inlet pipeline is connected between the medium-pressure air inlet joint 2 and the medium-pressure direct charging joint 30, and a medium-pressure air inlet needle valve 8, a medium-pressure air inlet pipeline pressure sensor 48, a medium-pressure air inlet pressure gauge 9, a medium-pressure air inlet pipeline pneumatic ball valve 49 and a medium-pressure direct charging needle valve 7 are sequentially arranged in the medium-pressure air inlet pipeline;
the low-pressure air inlet pipeline is connected between the low-pressure air inlet joint 3 and the low-pressure direct charging joint 29, and a low-pressure air inlet needle valve 11, a low-pressure air inlet pipeline pressure sensor 46, a low-pressure air inlet pressure gauge 12, a low-pressure air inlet pipeline pneumatic ball valve 47 and a low-pressure direct charging needle valve 10 are sequentially arranged in the low-pressure air inlet pipeline;
the flow metering pipeline and the pressure reducing pipeline are arranged in parallel; the inlet of the flow metering pipeline and the inlet of the pressure reducing pipeline are communicated with the high-pressure air inlet pipeline, the medium-pressure air inlet pipeline and the low-pressure air inlet pipeline; the outlet of the flow metering pipeline is communicated with a flowmeter outlet joint 27; the outlet of the pressure reducing pipeline is communicated with a pressure reducing valve outlet joint 28;
the flow metering pipeline is internally provided with a flow meter 44, a flow meter pipeline pressure sensor 42, a flow meter outlet pressure gauge 17, a flow meter pipeline pneumatic ball valve 43 and a flow meter outlet needle valve 16;
a pressure reducing valve 14, a pressure reducing valve outlet needle valve 13, a pressure reducing valve pipeline pressure sensor 45 and a pressure reducing valve outlet pressure gauge 15 are arranged in the pressure reducing pipeline;
the circulation test pipeline is connected with the supply and storage equipment connecting joint 33 and the flow metering pipeline, an air source inlet pressure gauge 20 and an air source inlet needle valve 21 are installed in the circulation test pipeline, the supply and storage equipment connecting joint 33 is used for connecting a nitrogen source or a cooling system or hydrogen transfer equipment, and a main filling pipeline pressure sensor 50 used for detecting the hydrogen pressure in the pipeline is installed on the circulation test pipeline behind the supply and storage equipment connecting joint 33.
The hydrogen filling simulation test system comprises a box body and a hydrogen transmission control assembly, wherein the hydrogen transmission control assembly is respectively connected with hydrogen sources with different pressure grades through low, medium and high pressure air inlet connectors to provide sufficient hydrogen; hydrogen storage equipment needing to be filled with hydrogen is connected through the low-pressure, medium-pressure and high-pressure direct filling joints 31, the corresponding air inlet joints and the direct filling joints are communicated through the low-pressure, medium-pressure and high-pressure air inlet pipelines, and a hydrogen filling passage is provided between a nitrogen source and the hydrogen using equipment, so that three-stage rapid filling is realized; the hydrogen circulation test and the multi-mode flow control can be carried out through the flow metering pipeline, the pressure reducing pipeline and the circulation test pipeline; the hydrogen filling simulation test system with the structure has the characteristics of multiple functions, high integration, high reliability and the like, can simulate the complete filling pipeline of the hydrogen station, can realize filling in multiple modes and complete multiple test projects, and is convenient for providing test functions and multiple reliability test data for the construction of the 70MPa hydrogen station.
In a specific embodiment, as shown in the structure of fig. 3, the tank body is further provided with a booster pump inlet joint 35 for connecting with an inlet of a booster pump and a booster pump outlet joint 36 for connecting with an outlet of the booster pump;
the hydrogen transmission control assembly also comprises a pressurization air inlet pipeline and a pressurization air outlet pipeline;
the supercharging air inlet pipeline is connected with the inlet joint 35 of the supercharging pump and the flow metering pipeline, and a supercharging air inlet pipeline pressure sensor 54, a supercharging air inlet pipeline one-way valve 55, a supercharging air inlet pipeline filter 56 and a supercharging air inlet pipeline safety valve 58 are arranged in the supercharging air inlet pipeline;
the pressurizing air outlet pipeline is connected with the outlet joint 36 of the pressurizing pump and the flow metering pipeline, a pressurizing air outlet pipeline filter 57, a low-pressure safety valve 52 and a high-pressure safety valve 51 which are connected in parallel are installed in the pressurizing air outlet pipeline, and a low-pressure safety valve air inlet needle valve 26 is installed in the branch of the low-pressure safety valve 52 which is provided with the low-pressure safety valve 52.
Can external booster pump through booster pump inlet joint 35 and the booster pump outlet connection 36 that set up, carry out the pressure boost to the hydrogen of inputing into the box inner pipeline through the booster pump.
Specifically, the hydrogen filling simulation test system further comprises a nitrogen purging assembly connected with the hydrogen transmission control assembly; the nitrogen purging assembly is used for evacuating hydrogen in the hydrogen transmission control assembly. The nitrogen purging component comprises a nitrogen source connector 32, an emptying pipeline connector 34, a nitrogen inlet pressure gauge 18, a nitrogen inlet needle valve 19, a pressurizing pipeline emptying pressure gauge 22, a pressurizing pipeline emptying needle valve 23, a filling pipeline emptying pressure gauge 24, a filling pipeline emptying needle valve 25, a low-pressure emptying pipeline one-way valve 53, a purging pipeline one-way valve 59 and a nitrogen purging pipeline;
a nitrogen source joint 32 and an emptying pipeline joint 34 are arranged in the box body; the nitrogen source connector 32 is used for connecting a nitrogen source, and the nitrogen source provides nitrogen for purging the pipeline;
the nitrogen purging pipeline is connected between the nitrogen source connector 32 and the emptying pipeline connector 34 and is used for communicating the high-pressure air inlet pipeline, the medium-pressure air inlet pipeline, the low-pressure air inlet pipeline, the flow metering pipeline, the pressure reducing pipeline and the circulation testing pipeline; a nitrogen inlet pressure gauge 18, a nitrogen inlet needle valve 19 and a purging pipeline one-way valve 59 are arranged between the nitrogen source connector 32 and the nitrogen purging pipeline; a low-pressure vent pipeline one-way valve 53 is arranged between the nitrogen purging pipeline and the vent pipeline joint 34;
a pressure boost pipeline emptying pressure gauge 22 and a pressure boost pipeline emptying needle valve 23 are arranged in the pressure boost air outlet pipeline;
and a filling pipeline emptying pressure gauge 24 and a filling pipeline emptying needle valve 25 are arranged in the high-pressure air inlet pipeline, the medium-pressure air inlet pipeline and the low-pressure air inlet pipeline.
The nitrogen purging assembly can exhaust gas in the pipeline, the pipeline is guaranteed to be in a non-pressure-bearing state or a low-pressure-bearing state, the gas in the pipeline is inerted, and the safety of the whole hydrogen filling simulation test system is guaranteed by the aid of the gas in the nitrogen exhaust pipeline.
As shown in the configuration of fig. 1, and as shown in the configuration of fig. 1 and 2, the cabinet includes a top control panel 38; the high-pressure direct-charging needle valve 4, the high-pressure gas inlet needle valve 5, the high-pressure gas inlet pressure gauge 6, the medium-pressure direct-charging needle valve 7, the medium-pressure gas inlet needle valve 8, the medium-pressure gas inlet pressure gauge 9, the low-pressure direct-charging needle valve 10, the low-pressure gas inlet needle valve 11, the low-pressure gas inlet pressure gauge 12, the pressure reducing valve outlet needle valve 13, the pressure reducing valve 14, the pressure reducing valve outlet pressure gauge 15, the flow meter outlet needle valve 16, the flow meter outlet pressure gauge 17, the nitrogen inlet pressure gauge 18, the nitrogen gas inlet needle valve 19, the gas source inlet pressure gauge 20, the gas source inlet needle valve 21, the pressure charging pipeline emptying pressure gauge 22, the pressure charging pipeline emptying needle valve 23, the charging.
The high-pressure air inlet joint 1, the medium-pressure air inlet joint 2, the low-pressure air inlet joint 3, the high-pressure direct charging joint 31, the medium-pressure direct charging joint 30, the low-pressure direct charging joint 29, the storage and supply equipment connecting joint 33, the booster pump inlet joint 35, the booster pump outlet joint 36, the nitrogen source joint 32 and the emptying pipeline joint 34 are all self-sealing through-plate joints and penetrate through a skin 37.
The hydrogen filling simulation test system further includes a Controller (not shown in the figure), which may be a PLC (Programmable Logic Controller) Controller and is disposed outside the box body; the controller is connected to a high pressure inlet line pressure sensor 41, a medium pressure inlet line pressure sensor 48, a low pressure inlet line pressure sensor 46, a flow meter 44, a flow meter line pressure sensor 42, a flow meter line pneumatic ball valve 43, a pressure reducing valve 14, a pressure reducing valve line pressure sensor 45, and a boost inlet line pressure sensor 54.
The hydrogen filling simulation test system can be used as a hydrogen filling device to realize graded direct filling and can also be used for a 70MPa simulation test system; when hydrogen storage systems such as hydrogen equipment and the like are used for filling, pipe valve parts of a hydrogen filling simulation test system are all in a closed state, all interfaces are in a closed state, each vent port is connected with a vent pipeline interface, reasonable height is set, hydrogen sources with three different pressure grades are connected with three-stage filling interfaces, and the hydrogen storage system is connected with a low-pressure direct-filling connector 29, a medium-pressure direct-filling connector 30 and a high-pressure direct-filling connector 31; opening a low-pressure air inlet needle valve 11 and a low-pressure direct-charging needle valve 10 to charge the hydrogen storage system, closing the low-pressure air inlet needle valve 11 and the low-pressure direct-charging needle valve 10 when the hydrogen storage system reaches a certain pressure, opening a medium-pressure air inlet needle valve 8 and a medium-pressure direct-charging needle valve 7, closing the medium-pressure air inlet needle valve 8 and the medium-pressure direct-charging needle valve 7 when the hydrogen storage system reaches a certain pressure, opening a high-pressure air inlet needle valve 5 and a high-pressure direct-charging needle valve 4, and closing the high-pressure air inlet needle valve 5 and the high-pressure; the three-level air inlet needle valve is respectively provided with a pressure gauge and a pressure sensor, namely a low-pressure air inlet pressure gauge 12, a medium-pressure air inlet pressure gauge 9, a high-pressure air inlet pressure gauge 6, a low-pressure air inlet pipeline pressure sensor 46, a medium-pressure air inlet pipeline pressure sensor 48 and a high-pressure air inlet pipeline pressure sensor 41, and the air source inlet pressure can be monitored in real time through the pressure gauge and the pressure sensor; the filling rate and the filling pressure depend on the pressure level of the air source; after the test is finished, closing the three-level air inlet needle valve and the three-level direct filling needle valve; opening a low-pressure air inlet pipeline pneumatic ball valve 47, a medium-pressure air inlet pipeline pneumatic ball valve 49, a high-pressure air inlet pipeline pneumatic ball valve 40, a pressurization pipeline emptying needle valve 23 and a filling pipeline emptying needle valve 25, and emptying hydrogen in the pipelines; and opening the nitrogen gas inlet needle valve 19 to completely purge hydrogen in the simulation test system, so that pipelines and valves of the simulation test system are in a micro-positive pressure state, the service lives of the pipelines and the valves are prolonged, and the storage safety of the simulation test system is protected.
The hydrogen filling simulation test system can realize rapid pressurization filling, a cooling system and a booster pump can be externally connected through the arranged equipment connecting joint 33 for storage, the booster pump inlet joint 35 and the booster pump outlet joint 36, the rapid filling of cooling and pressurization of hydrogen can be realized, and in addition, a flow meter 44 is arranged in a filling pipeline, and the filling amount of hydrogen can be measured; the specific implementation mode is as follows: ensuring that all valves are in a closed state, all interfaces are in a closed state, connecting the emptying port with the emptying pipeline interface and setting a reasonable height, sequentially connecting an air source, a cooling system, filling equipment and the like, connecting a final air outlet with a simulation test system storage equipment connecting joint 33, and respectively connecting an air inlet and an air outlet of a supercharging device with a supercharging pump inlet joint 35 and a supercharging pump outlet joint 36 of the simulation test system; opening the gas source inlet needle valve 21, selecting a pressure pipeline safety valve to open or close according to the pressure grade, opening the low-pressure safety valve gas inlet needle valve 26 when the pressure of the pressurized gas is less than 35MPa, and closing the low-pressure safety valve gas inlet needle valve 26 when the pressure of the pressurized gas is more than 35 MPa; opening the pneumatic ball valve 43 of the flow meter pipeline and the flow meter outlet needle valve 16, and allowing the pressurized gas to flow through the flow meter 44 and then enter the hydrogen storage device; the pressure boosting air inlet pipeline is provided with a pressure gauge, a pressure sensor, a one-way valve and a filter, and the pressure of the air inlet pipeline is monitored in real time; the pressure boost pipeline is provided with a filter, a pressure sensor and a high-low pressure safety valve 52, the pressure of the pressure boost pipeline is monitored in real time, and the high-low pressure safety valve 52 can protect the pressure boost pipeline and a valve part and prevent the pressure from exceeding a rated pressure resistance value; the filling pipeline is provided with a flowmeter 44, a pressure sensor and a pressure gauge, and the pressure of the filling system and the total amount of the filled gas are monitored in real time; after the test is finished, the pressurizing pipeline emptying needle valve 23 and the filling pipeline emptying needle valve 25 are opened, hydrogen in the pipelines is emptied, the nitrogen inlet needle valve 19 is opened to completely purge the hydrogen in the simulation test system, the pipelines and the valves of the simulation test system are ensured to be in a micro-positive pressure state, the service lives of the pipelines and the valves are prolonged, gas in the pipelines is inerted, and the storage safety of the simulation test system is protected.
The hydrogen filling simulation test system can realize constant pressure test and provide a low-pressure gas source for hydrogen storage equipment: ensuring that all valves are in a closed state and all interfaces are in a closed state, connecting the emptying port with the emptying pipeline interface and setting a reasonable height, connecting three gas sources with different pressure grades with the three-stage filling interface, and connecting a hydrogen storage system or hydrogen equipment (such as a galvanic pile) with the outlet connector 28 of the reducing valve; the low-pressure air inlet needle valve 11, the low-pressure air inlet pipeline pneumatic ball valve 47, the medium-pressure air inlet needle valve 8, the medium-pressure air inlet pipeline pneumatic ball valve 49, the high-pressure air inlet needle valve 5, the high-pressure air inlet pipeline pneumatic ball valve 40, the flowmeter pipeline pneumatic ball valve 43 and the reducing valve outlet needle valve 13 are sequentially opened according to requirements, hydrogen is transmitted to hydrogen storage and utilization equipment, and the reducing valve 14 can be adjusted according to requirements to control the pressure of a subsequent pipeline; in addition, under the condition of ensuring the closing of the three-stage air inlet needle valve, the air source can be connected to the booster pump to provide an air source for the simulation test system; and after the test is finished, emptying and purging the pipeline according to the steps.
The 70MPa simulation test system can realize constant-current test and provide a low-pressure gas source for hydrogen storage equipment: ensuring that all valves are in a closed state and all interfaces are in a closed state, connecting the emptying port with the emptying pipeline interface and setting a reasonable height, connecting three gas sources with different pressure grades with the three-stage filling interface, and connecting a hydrogen storage system or hydrogen equipment (such as a galvanic pile) with the outlet connector 28 of the reducing valve; the method comprises the following steps of sequentially opening a low-pressure air inlet needle valve 11, a low-pressure air inlet pipeline pneumatic ball valve 47, a medium-pressure air inlet needle valve 8, a medium-pressure air inlet pipeline pneumatic ball valve 49, a high-pressure air inlet needle valve 5, a high-pressure air inlet pipeline pneumatic ball valve 40, a flowmeter pipeline pneumatic ball valve 43 and a pressure reducing valve outlet needle valve 13 according to requirements, transmitting hydrogen to hydrogen storage and utilization equipment, feeding back a flowmeter 44 to a controller in the form of an electric signal according to real-time flow, and controlling the opening degree of a pressure reducing valve 14 by the controller to control the output; in addition, under the condition of ensuring the closing of the three-stage air inlet needle valve, the air source can be connected to the booster pump to provide an air source for the simulation test system; and after the test is finished, emptying and purging the pipeline according to the steps.
The 70MPa simulation test system can realize quantitative hydrogen circulation test, ensure that all valves are in a closed state, all interfaces are in a closed state, connect the vent with the vent pipeline interface and set a reasonable height, connect three gas sources with different pressure levels with the three-level filling interface, and connect the hydrogen storage system with the low-pressure direct-filling connector 29, the medium-pressure direct-filling connector 30 and the high-pressure direct-filling connector 31; opening a low-pressure air inlet needle valve 11 and a low-pressure direct-charging needle valve 10 to charge the hydrogen storage system, closing the low-pressure air inlet needle valve 11 and the low-pressure direct-charging needle valve 10 when the hydrogen storage system reaches a certain pressure, opening a medium-pressure air inlet needle valve 8 and a medium-pressure direct-charging needle valve 7, closing the medium-pressure air inlet needle valve 8 and the medium-pressure direct-charging needle valve 7 when the hydrogen storage system reaches a certain pressure, opening a high-pressure air inlet needle valve 5 and a high-pressure direct-charging needle valve 4, and closing the high-pressure air inlet needle valve 5 and the high-pressure; the three-level air inlet needle valve is respectively provided with a pressure gauge and a pressure sensor, so that the inlet pressure of an air source can be monitored in real time; after filling, closing the three-level air inlet needle valve and the three-level direct filling needle valve; the outlet of the hydrogen storage system is connected with a connecting joint 33 of the storage supply equipment, and the gas inlet and outlet of the supercharging equipment are respectively connected with an inlet joint 35 and an outlet joint 36 of a supercharging pump of the simulation test system; opening the gas source inlet needle valve 21, selecting a pressure pipeline safety valve to open or close according to the pressure grade, opening the low-pressure safety valve gas inlet needle valve 26 when the pressure of the pressurized gas is less than 35MPa, and closing the low-pressure safety valve gas inlet needle valve 26 when the pressure of the pressurized gas is more than 35 MPa; opening the low-pressure air inlet needle valve 11 and the low-pressure air inlet pipeline pneumatic ball valve 47, filling the low-pressure hydrogen storage system, and closing the low-pressure air inlet pipeline needle valve and the low-pressure air inlet pipeline pneumatic ball valve when the low-pressure hydrogen storage system reaches the initial pressure; opening a medium pressure air inlet pipeline needle valve and a medium pressure air inlet pipeline pneumatic ball valve 49, and closing the medium pressure air inlet needle valve 8 and the medium pressure air inlet pipeline pneumatic ball valve 49 when the medium pressure hydrogen storage system reaches the initial pressure; opening a needle valve of the high-pressure air inlet pipeline and a pneumatic ball valve 40 of the high-pressure air inlet pipeline, and closing the needle valve of the high-pressure air inlet pipeline and the pneumatic ball valve of the high-pressure air inlet pipeline when the high-pressure hydrogen storage system reaches the initial pressure; the operation above the reciprocating circulation can realize the quantitative gas circulation, and the parameters required by the test in the recycling process can be obtained; the pressure boosting air inlet pipeline is provided with a pressure gauge, a pressure sensor, a one-way valve and a filter, and the pressure of the air inlet pipeline is monitored in real time; the pressure boost pipeline is provided with a filter, a pressure sensor and a high-low pressure safety valve 52, the pressure of the pressure boost pipeline is monitored in real time, and the high-low pressure safety valve 52 can protect the pressure boost pipeline and a valve part and prevent the pressure from exceeding a rated pressure resistance value.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A hydrogen filling simulation test system is characterized by comprising a box body and a hydrogen transmission control assembly arranged on the box body;
the box body is provided with a high-pressure air inlet joint, a medium-pressure air inlet joint, a low-pressure air inlet joint, a high-pressure direct charging joint, a medium-pressure direct charging joint, a low-pressure direct charging joint, a flowmeter outlet joint, a pressure reducing valve outlet joint and a supply and storage equipment connecting joint; the high-pressure air inlet joint, the medium-pressure air inlet joint and the low-pressure air inlet joint are used for connecting hydrogen sources with different pressures; the high-pressure direct charging connector, the medium-pressure direct charging connector and the low-pressure direct charging connector are used for connecting hydrogen storage equipment;
the hydrogen transmission control assembly comprises a high-pressure air inlet pipeline, a medium-pressure air inlet pipeline, a low-pressure air inlet pipeline, a flow metering pipeline, a pressure reducing pipeline and a circulation test pipeline;
the high-pressure air inlet pipeline is connected between the high-pressure air inlet joint and the high-pressure direct charging joint, and a high-pressure air inlet needle valve, a high-pressure air inlet pipeline pressure sensor, a high-pressure air inlet pressure gauge, a high-pressure air inlet pipeline pneumatic ball valve and a high-pressure direct charging needle valve are sequentially arranged in the high-pressure air inlet pipeline;
the medium-pressure air inlet pipeline is connected between the medium-pressure air inlet joint and the medium-pressure direct charging joint, and a medium-pressure air inlet needle valve, a medium-pressure air inlet pipeline pressure sensor, a medium-pressure air inlet pressure gauge, a medium-pressure air inlet pipeline pneumatic ball valve and a medium-pressure direct charging needle valve are sequentially arranged in the medium-pressure air inlet pipeline;
the low-pressure air inlet pipeline is connected between the low-pressure air inlet joint and the low-pressure direct charging joint, and a low-pressure air inlet needle valve, a low-pressure air inlet pipeline pressure sensor, a low-pressure air inlet pressure gauge, a low-pressure air inlet pipeline pneumatic ball valve and a low-pressure direct charging needle valve are sequentially arranged in the low-pressure air inlet pipeline;
the flow metering pipeline and the pressure reducing pipeline are arranged in parallel; the inlet of the flow metering pipeline and the inlet of the pressure reducing pipeline are communicated with the high-pressure air inlet pipeline, the medium-pressure air inlet pipeline and the low-pressure air inlet pipeline; the outlet of the flow metering pipeline is communicated with the outlet joint of the flowmeter; an outlet of the pressure reducing pipeline is communicated with the outlet joint of the pressure reducing valve;
a flow meter, a flow meter pipeline pressure sensor, a flow meter outlet pressure gauge, a flow meter pipeline pneumatic ball valve and a flow meter outlet needle valve are arranged in the flow metering pipeline;
the pressure reducing pipeline is internally provided with a pressure reducing valve, a needle valve at the outlet of the pressure reducing valve, a pressure sensor of the pipeline of the pressure reducing valve and a pressure gauge at the outlet of the pressure reducing valve;
circulation test tube coupling supply store up equipment attach fitting with the flow measurement pipeline install air supply import manometer and air supply import needle valve in the circulation test pipeline, supply to store up equipment attach fitting and be used for connecting nitrogen source or cooling system or hydrogen unloading equipment.
2. The hydrogen filling simulation test system of claim 1, wherein the tank body is further provided with a booster pump inlet connector for connecting an inlet of a booster pump and a booster pump outlet connector for connecting an outlet of the booster pump;
the hydrogen transmission control assembly also comprises a pressurization air inlet pipeline and a pressurization air outlet pipeline;
the supercharging air inlet pipeline is connected with the inlet joint of the booster pump and the flow metering pipeline, and a supercharging air inlet pipeline pressure sensor, a supercharging air inlet pipeline one-way valve, a supercharging air inlet pipeline filter and a supercharging air inlet pipeline safety valve are installed in the supercharging air inlet pipeline;
the booster pump outlet pipeline is connected with the booster pump outlet connector and the flow metering pipeline, a booster air outlet pipeline filter, a low-pressure safety valve and a high-pressure safety valve which are connected in parallel are installed in the booster air outlet pipeline, and a low-pressure safety valve air inlet needle valve is installed in a low-pressure safety valve branch of the low-pressure safety valve.
3. The hydrogen fill simulation test system of claim 2, further comprising a nitrogen purge assembly connected to the hydrogen transfer control assembly; the nitrogen purging assembly is used for evacuating hydrogen in the hydrogen transmission control assembly.
4. The hydrogen filling simulation test system of claim 3, wherein the nitrogen purging component comprises a nitrogen source connector, an emptying pipeline connector, a nitrogen inlet pressure gauge, a nitrogen inlet needle valve, a pressurization pipeline emptying pressure gauge, a pressurization pipeline emptying needle valve, a filling pipeline emptying pressure gauge, a filling pipeline emptying needle valve, a low-pressure emptying pipeline one-way valve, a purging pipeline one-way valve and a nitrogen purging pipeline;
the nitrogen source joint and the emptying pipeline joint are arranged on the box body; the nitrogen source joint is used for connecting the nitrogen source;
the nitrogen purging pipeline is connected between a nitrogen source connector and an emptying pipeline connector and is used for communicating the high-pressure air inlet pipeline, the medium-pressure air inlet pipeline, the low-pressure air inlet pipeline, the flow metering pipeline, the pressure reducing pipeline and the circulation testing pipeline; a nitrogen inlet pressure gauge, a nitrogen inlet needle valve and a purging pipeline one-way valve are arranged between the nitrogen source connector and the nitrogen purging pipeline; a low-pressure vent pipeline one-way valve is arranged between the nitrogen purging pipeline and the vent pipeline joint;
the pressurization pipeline emptying pressure gauge and the pressurization pipeline emptying needle valve are arranged in the pressurization air outlet pipeline;
the high-pressure air inlet pipeline, the medium-pressure air inlet pipeline and the low-pressure air inlet pipeline are all provided with a filling pipeline emptying pressure gauge and a filling pipeline emptying needle valve.
5. A hydrogen filling simulation test system as claimed in claim 4, wherein the tank comprises a top control panel;
the high pressure directly fills the needle valve, the high pressure needle valve that admits air, the high pressure manometer that admits air, the medium pressure directly fills the needle valve, the medium pressure needle valve that admits air, the low pressure directly fills the needle valve the low pressure needle valve that admits air, the low pressure manometer that admits air, relief pressure valve export needle valve the relief pressure valve export manometer, flowmeter export needle valve the flowmeter export manometer nitrogen gas inlet manometer nitrogen gas admit air the needle valve the air source import manometer the air source import needle valve the pressure boost pipeline pressure gauge that empties, the pressure boost pipeline pressure needle valve that empties fill the pipeline pressure gauge fill the pipeline pressure that empties fill the pipeline pressure needle valve and the low pressure relief valve needle valve that admits air all install in control panel.
6. The hydrogen filling simulation test system of claim 5, wherein the tank further comprises a fixing bracket and a skin fixedly mounted on an outer peripheral side of the fixing bracket;
the control panel is installed on the top of the fixed support.
7. The hydrogen filling simulation test system of claim 6, wherein the high pressure inlet fitting, the medium pressure inlet fitting, the low pressure inlet fitting, the high pressure direct charge fitting, the medium pressure direct charge fitting, the low pressure direct charge fitting, the supply and storage equipment connection fitting, the booster pump inlet fitting, the booster pump outlet fitting, the nitrogen source fitting, and the vent line fitting are self-sealing bulkhead fittings and pass through the skin.
8. A hydrogen filling simulation test system as claimed in claim 7, further comprising a controller; the controller is connected with the high-pressure air inlet pipeline pressure sensor, the medium-pressure air inlet pipeline pressure sensor, the low-pressure air inlet pipeline pressure sensor, the flowmeter pipeline pressure sensor, the flowmeter pipeline pneumatic ball valve, the pressure reducing valve pipeline pressure sensor and the pressurization air inlet pipeline pressure sensor.
9. A hydrogen filling simulation test system as claimed in claim 8, wherein the tank is made of an aluminium alloy material.
10. A hydrogen filling simulation test system as claimed in claim 8, wherein the tank is made of stainless steel material.
CN202011473676.4A 2020-12-15 2020-12-15 Hydrogen filling simulation test system Pending CN112577769A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113532843A (en) * 2021-06-29 2021-10-22 上海舜华新能源系统有限公司 Precooling hydrogen exposure test device and test method
CN113606124A (en) * 2021-08-13 2021-11-05 上海氢枫能源技术有限公司 Compressor testing system and testing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113532843A (en) * 2021-06-29 2021-10-22 上海舜华新能源系统有限公司 Precooling hydrogen exposure test device and test method
CN113606124A (en) * 2021-08-13 2021-11-05 上海氢枫能源技术有限公司 Compressor testing system and testing method

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