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Risk evaluation method for hydrogen energy equipment in hydrogen refueling station

A technology of risk assessment and hydrogen refueling station, which is applied in the field of safety assessment system and can solve problems such as major dangers and hidden dangers

Active Publication Date: 2021-05-18
ZHEJIANG UNIV CITY COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its failure, the proportion of its hydrogen leakage accidents and near accidents has reached more than 50%, and there are great hidden dangers

Method used

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  • Risk evaluation method for hydrogen energy equipment in hydrogen refueling station
  • Risk evaluation method for hydrogen energy equipment in hydrogen refueling station
  • Risk evaluation method for hydrogen energy equipment in hydrogen refueling station

Examples

Experimental program
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Effect test

Embodiment 1

[0059] Such as figure 1 as shown, figure 1 A schematic structural view of a hydrogen refueling station shown in an embodiment of the present invention is shown. The hydrogen refueling station in this embodiment may include: at least one compressor, a hydrogen storage tank connected to all compressors by pipelines, and a hydrogen storage tank connected by pipelines Each hydrogenation machine pipeline is connected with a plurality of filling guns for filling hydrogen energy vehicles with hydrogen.

[0060] The hydrogen storage tank in this embodiment is a 98MPa high-pressure hydrogen storage tank, the compressor is a 90MPa compressor, that is, the exhaust pressure is 90MPa, and the power is 18.5kW; the hydrogenation machine is a 70MPa hydrogenation machine, the filling pressure is 70MPa, and the preset temperature is: -40°C.

[0061] In practical application, the tube bundle car transports hydrogen to the hydrogen refueling station, fills the corresponding buffer bottle in the...

Embodiment 2

[0107] A schematic flowchart of a risk assessment method for hydrogen energy equipment in a hydrogen refueling station provided by an embodiment of the present invention. The execution subject of the method in this embodiment can be any electronic device or computer device. The method in this embodiment may include the following Steps not shown in the diagram:

[0108] S1. The control system acquires first operating parameters of the compressor by means of a solenoid valve arranged on the compressor, and the first operating parameters include: pressure, temperature, volume and / or flow;

[0109] The control system obtains the second operating parameters of the hydrogen storage tank by means of the electromagnetic valve arranged on the hydrogen storage tank, and the second operating parameters include: pressure, temperature and / or flow;

[0110] The control system obtains the third operating parameters of the hydrogenation machine by means of the control chip in the hydrogenatio...

Embodiment 3

[0138] The control system in this embodiment can be set in a control room or in a cloud server. In this embodiment, the specific location of the control system is not limited, and it can be configured according to actual needs.

[0139] After the control system of this embodiment determines the location information of hydrogen leakage, it sends a closing command to the solenoid valve or control valve close to the location information, so as to close the equipment or pipeline of hydrogen leakage.

[0140] Further, the control system is also used to obtain the basic attribute parameters of each hydrogen energy equipment in the hydrogen refueling station, judge the service life of each hydrogen energy equipment, and determine whether to issue early warning information for equipment replacement.

[0141] It should be noted that the control system in this embodiment may be a control program, which is stored in a memory, and the processor executes the program in the memory to impleme...

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Abstract

The invention relates to a risk evaluation method for hydrogen energy equipment in a hydrogen refueling station, and the method comprises the steps: a control system obtains the operation parameters of each hydrogen energy equipment in the hydrogen refueling station, and the operation parameters comprise the operation parameters of a compressor, the operation parameters of a hydrogen storage tank, the operation parameters of a hydrogen refueling machine, the operation parameters of a filling gun, and the operating parameters of a connecting pipeline between any two pieces of adjacent hydrogen energy equipment; the control system determines whether hydrogen leakage exists in the whole hydrogen refueling station or not according to the operation parameters of all hydrogen energy equipment and effectively used hydrogen energy data and a hydrogen energy operation strategy; and if the hydrogen leakage exists, the control system determines the position information of the hydrogen leakage according to the data information of the adjacent monitoring points. According to the method, the availability and the reliability are fully considered, and the safety and the reliability of the hydrogen energy facility are guaranteed.

Description

technical field [0001] The invention relates to a safety assessment system, in particular to a risk assessment method for hydrogen energy equipment in a hydrogen refueling station. Background technique [0002] Hydrogen refueling station is an essential infrastructure for the promotion and application of fuel cell vehicles, and it is also an important part of the hydrogen energy industry. At present, there are more than 200 hydrogen refueling stations in the world with a hydrogen refueling capacity of 70MPa. However, according to statistics on the types of failures and the severity of accidents in hydrogen refueling stations, hydrogen refueling machine failures accounted for 35%, and compressor failures accounted for 21%, which are the main faulty equipment in the hydrogen refueling station system. Due to its failure, the proportion of its hydrogen leakage accidents and near-accidents has reached more than 50%, and there are relatively large hidden dangers. For the applica...

Claims

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Application Information

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IPC IPC(8): G06K9/62F17C7/00F17C13/02F17C13/12F17D5/06
CPCF17C7/00F17C13/02F17C13/12F17D5/06F17C2260/04G06F18/2411G06F18/24323G06F18/214Y02E60/32
Inventor 杨武剑
Owner ZHEJIANG UNIV CITY COLLEGE
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