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Calculating method of volume of hydrogen storage tank in hydrogen cyclic fatigue test system

A technique for fatigue testing and volume calculation, applied in the direction of volume measuring instruments/methods, measuring capacity, measuring devices, etc.

Active Publication Date: 2018-06-29
HEFEI GENERAL MACHINERY RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no relevant report in the prior art on how to calculate the volume of the hydrogen storage tank with the goal of using the least amount of hydrogen in the test system while ensuring the above-mentioned tests are carried out normally.

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  • Calculating method of volume of hydrogen storage tank in hydrogen cyclic fatigue test system
  • Calculating method of volume of hydrogen storage tank in hydrogen cyclic fatigue test system
  • Calculating method of volume of hydrogen storage tank in hydrogen cyclic fatigue test system

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Embodiment Construction

[0061] Below in conjunction with embodiment technical solution of the present invention is made more specific description:

[0062] The volume of the high-pressure storage tank needs to meet two conditions:

[0063] (1) Can inflate the gas cylinder under test to the highest pressure P 2 =87.5MPa;

[0064] (2) The pressure difference between the high-pressure storage tank and the gas cylinder to be tested must be able to ensure that the maximum inflation flow rate can reach W G(max) = 3.6 kg / min.

[0065] The calculation process of high pressure storage tank volume is as follows:

[0066] Under certain continuous hydrogen cycle fatigue test conditions, determine the initial pressure of the high-pressure storage tank as P 10 =110MPa, temperature T 10 =40°C, the initial pressure of the cylinder to be tested is P 20 =1MPa, temperature is T 20 =25°C; the corresponding gas pressure of the gas cylinder to be tested is P 2 =87.5MPa, the volume is V 2 =0.14m 3 , the temperatu...

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Abstract

The invention relates to a calculating method of the volume of a hydrogen storage tank in a hydrogen cyclic fatigue test system. The calculating method comprises the steps of calculating the volume ofa high-pressure storage tank and calculating the volume of a low-pressure storage tank. By means of the calculating method of the volume of the hydrogen storage tank in the hydrogen cyclic fatigue test system, the minimum volumes of the high-pressure storage tank and the low-pressure storage tank in the hydrogen cyclic fatigue test system can be calculated, it is achieved that the hydrogen use amount in a hydrogen cyclic fatigue test is minimum on the condition of guaranteeing the normal run of the hydrogen cyclic fatigue test to improve the test safety, and besides, the running cost of the test is lowered.

Description

technical field [0001] The invention belongs to the field of hydrogen cycle fatigue test systems, in particular to a method for calculating the volume of a hydrogen storage tank in a hydrogen cycle fatigue test system. Background technique [0002] Hydrogen cylinders need to undergo a hydrogen cycle fatigue test before use to ensure their safety when put into use. The existing hydrogen cycle fatigue test system includes a high-pressure storage tank, a low-pressure storage tank, and a gas cylinder to be tested, and the high-pressure storage tank, the low-pressure storage tank, and the gas cylinder to be tested are connected by pipelines. The hydrogen cycle process in the gas cycle fatigue test system is: (1) inflate the gas cylinder under test from the high-pressure storage tank, and the inflating flow rate is f i , until the measured gas cylinder pressure reaches the predetermined value P th ; (2) Put the hydrogen in the measured gas cylinder to the low-pressure storage ta...

Claims

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Application Information

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IPC IPC(8): G01F17/00
CPCG01F17/00
Inventor 刘孝亮陈学东范志超徐鹏江慧丰许明郭晓璐
Owner HEFEI GENERAL MACHINERY RES INST
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