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Device and method for testing hydrogen release of temperature-adjustable material

A technology of testing devices and heating devices, which is applied in measuring devices, analytical materials, instruments, etc., can solve problems such as low measurement accuracy and difficulty in measuring trace hydrogen release, achieve high measurement accuracy, avoid gas release, and improve measurement accuracy.

Active Publication Date: 2013-12-04
CHANGZHOU HUSNG ELECTRIC APPLIANCE
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages in the prior art that it can only measure the hydrogen released when the room temperature material breaks, it is difficult to measure the hydrogen released in the deformation process, and the measurement accuracy is low, and provides a high-precision temperature-adjustable material hydrogen Release test device and test method

Method used

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  • Device and method for testing hydrogen release of temperature-adjustable material
  • Device and method for testing hydrogen release of temperature-adjustable material
  • Device and method for testing hydrogen release of temperature-adjustable material

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Embodiment Construction

[0060] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0061] Such as figure 1 The illustrated embodiment is a hydrogen release test device for temperature-adjustable materials, including a vacuum chamber 1, a support frame 2 disposed in the vacuum chamber, a sample exchange chamber 3 and a temperature control device communicated with the vacuum chamber; The control device includes a heating controller 36, a heating device 37 and a cooling device 38. The heating device is located in the vacuum chamber, and the cooling device is connected to the vacuum chamber; a vacuum gate valve 4 is arranged between the vacuum chamber and the sample exchange chamber, and the sample One side of the exchange chamber is provided with a sample exchange device, the sample exchange chamber is provided with a sealing cover 5, and an upper clamp 6 and a lower clamp 7 for fixing the sample 35 are arranged in the sample ex...

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Abstract

The invention discloses a device and a method for testing hydrogen release of a temperature-adjustable material. The device adopts a four-stage vacuum system to improve the degree of vacuum in a vacuum chamber to the maximize extent, thereby improving the testing accuracy of hydrogen release in stages of elastic deformation, yield deformation and plastic deformation of a material, and better reflecting dependencies of the hydrogen transfer on the microstructure and structural change during the deformations of the material under different temperature conditions. By the way of combining liquid nitrogen cooling and electric heating, automatic temperature control on a test sample from low temperature to high temperature is achieved, so that the rule of influence of the temperatures on a hydrogen transfer behavior during the material deformation can be tested.

Description

technical field [0001] The invention relates to the technical field of residual gas analysis and testing in materials, in particular to a hydrogen release testing device and a testing method for temperature-adjustable materials with high measurement accuracy. Background technique [0002] Safe and efficient hydrogen storage, hydrogen transportation and hydrogenation are the key issues for the large-scale utilization of hydrogen energy. Among them, high-pressure hydrogen storage and hydrogenation have the advantages of simple equipment structure, low energy consumption for compressed hydrogen preparation, and fast charging and discharging. At present, most fuel cell vehicles, hydrogenation stations, and fuel cell power stations use high-pressure (35MPa or 70MPa) hydrogen storage / hydrogenation method. However, in a high-pressure hydrogen system in which hydrogen is repeatedly filled and released, the stress change caused by the gas and the attack of hydrogen will lead to mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 张林周成双陈兴阳
Owner CHANGZHOU HUSNG ELECTRIC APPLIANCE
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