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Hydrogen refueling station hydrogen optimizing filling method based on temperature rise and energy consumption control and system thereof

A technology of filling system and control system, which is applied in the field of hydrogen optimization filling method with high gas extraction rate and its optimized operation system, and can solve the problems of high gas extraction rate and the like

Active Publication Date: 2011-09-14
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In conclusion, there is currently no report on the optimal filling method and system that simultaneously achieves fast, effective, safe and reliable, high gas extraction rate and low energy consumption during the hydrogen filling process of the hydrogen refueling station.

Method used

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  • Hydrogen refueling station hydrogen optimizing filling method based on temperature rise and energy consumption control and system thereof
  • Hydrogen refueling station hydrogen optimizing filling method based on temperature rise and energy consumption control and system thereof
  • Hydrogen refueling station hydrogen optimizing filling method based on temperature rise and energy consumption control and system thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0071] Optimum control of temperature rise and filling rate: When filling high-pressure hydrogen for the fuel cell vehicle 23, the programmable controller 27 receives the vehicle-mounted hydrogen storage container model information, initial temperature and pressure signals, and temperature sensor 24 from the communication interface 25. The measured ambient temperature and the pressure of the fixed hydrogen storage tank of the hydrogen refueling station measured by the pressure sensors 8-10 are queried in the optimization results pre-stored in the programmable controller 27 to obtain hydrogen storage levels from low, medium and high pressure levels respectively. The opening value of the needle valve 19 when the tanks 5-7 take air, and the corresponding operation of the cooling device 14. Since the optimal control is based on the calculation formula of temperature rise, the calculation of filling time and the mathematical optimization model of multi-stage high-pressure hydrogen f...

Embodiment 2

[0081] Sequential gas intake control: When the filling rate is used as the switching condition during the filling process, the programmable controller 27 will give priority to sending a control signal, open the solenoid valve 13, and take gas from the low-pressure hydrogen storage tank 7. During the filling process, according to the communication interface The pressure signal at 25 is used to determine whether the vehicle-mounted hydrogen storage container has reached the specified filling pressure. At the same time, it is determined whether the mass flowmeter 17 and the flow transmitter 18 are sent to the programmable controller 27 at the current moment and the accumulated mass at the previous moment. Whether the flow difference reaches the set value, when the measured pressure of the on-board hydrogen storage container reaches the specified filling pressure, and the quality difference between the current moment and the last moment has not reached the set value, stop filling N...

Embodiment 3

[0083] Sequential gas supply control: the programmable controller 27 judges whether the pressures of the high, medium and low pressure hydrogen storage containers 5 to 7 measured by the pressure sensors 8 to 10 have dropped to the pressure setting for starting the gas supply in the optimization result value, when the set gas supply pressure is reached, the compressor unit 1 will be started, and the solenoid valves 2 to 4 will be opened or closed according to the priority order of high-middle-low to complete the maintenance of the hydrogen refueling station. Sequential refilling of stationary hydrogen tank systems. While ensuring fast, effective, safe and reliable gas extraction, and having the highest gas extraction rate of the hydrogen storage tank, the entire compressor unit 1 always operates with the lowest energy consumption.

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Abstract

The invention relates to the field of renewable, clean and environment-friendly new energy, aiming at providing a hydrogen refueling station hydrogen optimizing filling method based on temperature rise and energy consumption control and a system thereof. The method comprises the steps of: establishing a database arranged inside a programmable logic controller (PLC), and using the database to record the corresponding relationship between the corresponding filling initial condition and the opening value of a needle valve; according to the filling initial condition, using the PLC to inquire the opening value of the needle valve when hydrogen storage tanks with different pressure levels are used for taking gas; and according to the data inquired by the PLC, arranging the needle valve at the corresponding demarcated position, and carrying out the filling operation. The invention can run at the lower power consumption of a cooling device, ensures the temperature of a vehicle hydrogen storage container to be strictly controlled within the required range, and remarkably shortens the filling time, thus leading the whole system to effectively, safely and reliably fill high pressure hydrogen, and having the advantages of high gas taking efficiency, low power consumption and the like.

Description

technical field [0001] The invention belongs to the field of renewable, clean and environment-friendly new energy, and relates to a fast, effective, safe, reliable, and high gas extraction rate optimized hydrogen filling method and an optimized operation system based on temperature rise and energy consumption control. Background technique [0002] Hydrogen energy is internationally recognized as the future green energy due to its advantages of high energy efficiency, wide source, renewable, and zero pollution of combustion products. In recent years, many countries and regions, including the United States, Japan, China, South Korea, and the European Union, are vigorously developing hydrogen vehicles and actively building hydrogen refueling stations and related hydrogen energy infrastructure. Using hydrogen as power has become an important application direction in the field of new energy. [0003] At present, hydrogen storage methods mainly include high-pressure gaseous hydro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C5/04F17C13/02F17C13/04
CPCY02E60/321Y02E60/32
Inventor 杨健郑津洋赵磊唐萍徐平叶建军
Owner ZHEJIANG UNIV
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