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Air entraining system for high-pressure hydrogenation stations

A technology of high-pressure hydrogen and hydrogen refueling stations, applied in the field of refueling systems, to achieve the effects of increasing gas extraction rate, reducing sampling costs, and simple structure

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

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a gas refueling system that can be used in high-pressure hydrogen refueling stations, which can safely and easily collect hydrogen samples of hydrogen refueling stations and refill high-pressure hydrogen for fuel cell vehicles on the hydrogen refueling machine, so as to overcome the problems of existing refueling systems. The air machine collects samples of hydrogen gas pee small feet

Method used

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  • Air entraining system for high-pressure hydrogenation stations
  • Air entraining system for high-pressure hydrogenation stations

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Embodiment 1 Sampling operation: turn on the power of the controller 34 and select the sampling mode. If it is necessary to take a sample of the hydrogen in the high-pressure hydrogen storage bottle, connect the solenoid valve 5, driven by the low-pressure nitrogen, the pneumatic valve 1 is opened, the high-pressure hydrogen passes through the pneumatic valve 1, flows through the filter 33, reaches the pressure regulating valve 20, and quickly Connect the joint 29 to 30, open the needle valves 12 and 13, close the pressure regulating valve 21, slowly open the pressure regulating valve 20 until the sampling bottle has positive pressure, slowly open the pressure regulating valve 21, purge the sampling bottle with sample hydrogen, and then close the needle Valve 13, pressure regulating valve 21, adjust the outlet pressure of pressure regulating valve 20 until the inlet pressure of pressure regulating valve 21 reaches the pressure required for sampling, then close pressure r...

Embodiment 2

[0031] Embodiment 2 Filling operation: switch on the power supply of the controller 34, select the filling mode, and determine the relevant parameters, such as whether the filling quality or the pressure of the on-board hydrogen bottle is used as the filling end point, the rate point at which the three-stage hydrogen storage bottles switch between each other, Whether there is communication with the vehicle being filled when filling. After the parameters are set, the solenoid valve 8 is opened, driven by the low-pressure nitrogen, the pneumatic valve 4 is opened, and the filling preparation state is entered. Insert the hydrogenation gun 27 into the gas receiving head of the vehicle 41 to be filled, turn on the switch of the hydrogenation gun, and give a hydrogenation instruction. The controller 34 will open the electromagnetic valve 7 according to the preset program, open the pneumatic valve 3 for a few seconds, and then close the electromagnetic valve 7 and the pneumatic valve...

Embodiment 3

[0032] Embodiment 3 Filling rate control: When filling, when the hydrogenation system is not connected to the vehicle-mounted hydrogen bottle to be filled with a communication interface, during the filling process, the controller 34 will intermittently turn off or off according to the preset program. Instructions for opening the solenoid valve 8 and the pneumatic valve 4, that is, when the solenoid valve 8 and the pneumatic valve 4 are closed, the controller 34 calculates according to the quality of the filled hydrogen gas measured by the mass flow meter 23 and the actual pressure of the filled hydrogen bottle. The actual temperature in the hydrogen outlet bottle is then compared with the allowable temperature curve set by the program. If the actual temperature is close to the allowable temperature, the solenoid valve 8 and pneumatic valve 4 are closed; if the actual temperature is lower than the allowable temperature, the solenoid valve 8 and pneumatic valve are closed. Valve ...

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Abstract

The invention relates to a gas filling system for a high-pressure hydrogen filling station, which comprises a control system, a sampling system, a filling system, an alarm system and a nitrogen purging system, and is the gas filling system which can collect hydrogen sample of the hydrogen filling station and fill high-pressure hydrogen for fuel cell powered vehicles. The gas filling system has the functions of temperature automatic compensation of filling measurement, selectable gas taking procedure in three-stage order, reasonable control of filling rate, alarm of hydrogen leakage and automatic power-down, pulling out prevention and automatic static release in the filling process, overpressure protection of the system, and so on. The sampling points are designed at the tail end of the whole flow of the hydrogen filling station, so that the acquired hydrogen sample can have more representativeness in quality; and through the design of pressure regulation treatment on the high-pressurehydrogen for sampling, the sampling operation is more simple, convenient and quick, and a regular gas sampling steel bottle can also be used together, thereby the sampling cost is low. The gas filling system can improve the gas taking rate of the hydrogen filling station and ensure that the temperature rise of a filled vehicle hydrogen storage tank is strictly controlled within the required temperature range in the quick hydrogen filling process.

Description

technical field [0001] The invention belongs to the field of energy facilities, relates to the field of hydrogen energy infrastructure, and specifically relates to a gas filling machine used in a hydrogen filling station, which can collect hydrogen samples of the hydrogen filling station and a gas filling system for filling high-pressure hydrogen for fuel cell vehicles. Background technique [0002] The huge benefits to energy and the environment brought by the application of hydrogen energy in the field of transportation and transportation have been recognized by countries all over the world. Developed countries such as Europe, the United States and Japan have given special support in terms of policies, regulations, and funds, and have formulated detailed timetables for the development of fuel cell vehicles and key components, hydrogen infrastructure, and related standards, in order to accelerate and promote fuel cell vehicles. commercialization process. With the increasin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C5/04
CPCY02E60/321Y02E60/32
Inventor 马建新周伟潘相敏张存满邬敏忠陈华强
Owner TONGJI UNIV
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