A sequential disk system for a hydrogen refueling station and its application method

Abstract

The invention discloses a sequential disk system for a hydrogen refueling station, comprising a high-pressure hydrogen storage bottle group, a medium-pressure hydrogen storage bottle group, a low-pressure hydrogen storage bottle group, a main air intake pipeline, and first branch pipes respectively connected with the main air intake pipeline The second branch pipeline is equipped with a medium-pressure control valve, the third branch pipeline is equipped with a low-pressure control valve, and the first pressure transmitter is installed on the high-pressure hydrogen storage cylinder group , the second pressure transmitter is installed on the medium-pressure hydrogen storage cylinder group, the third pressure transmitter is installed on the low-pressure hydrogen storage cylinder group, and at least one hydrogenation machine is installed on the hydrogenation machine, and the hydrogenation machine pressure transmitter is installed on the hydrogenation machine ; It also includes a control unit, the control unit is electrically connected to the medium pressure control valve and the low pressure control valve, and is also electrically connected to the first pressure transmitter, the second pressure transmitter, the third pressure transmitter and the pressure transmitter of the hydrogenation machine. Transmitter, through the setting of control valve and pressure transmitter, the hydrogenation efficiency can be improved and the use of back pressure valve can be avoided.

Description

technical field [0001] The invention relates to the technical field of equipment for hydrogen refueling stations, in particular to a sequential disk system for hydrogen refueling stations and a method for using the same. Background technique [0002] A hydrogen refueling station refers to a place that provides fuel to hydrogen refueling vehicles in the form of hydrogen. Hydrogen gas is generally transported to the hydrogen refueling station by a hydrogen tank truck, and then compressed by the compressor unit, and then distributed and stored in high, medium and low pressure hydrogen storage bottles in order of priority through the sequence control panel. The existing sequence control panel generally uses The form of back pressure valve, that is, back pressure valves are installed on the intake pipelines of high, medium and low pressure hydrogen storage bottles, and different back pressure valves are set with different pressures so that the gas can pass through; among them, th...

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Problems solved by technology

After long-term use, the pressure control of the back pressure valve will be unstable. In this way, once the form of mechanical control fails, the function of priority filling will also lose its meaning; and the cost of the hydrogen high pressure back pressure valve is very expensive; The cost is also relatively high

[0006] 2. If the hydrogenation station has 2 hydrogenation machines or more, it is impossible to monitor the pressure value of each hydrogenation machine and the hydrogenation vehicle, and it is impossible to realize the priority hydrogenation control

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