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Device for detecting hydrogen absorption process volume changes of hydrogen storage alloy powder

A technology of hydrogen storage alloy and volume change, applied in the direction of testing metals, material inspection products, etc., can solve the problems of detecting the volume change of hydrogen storage alloy powder, etc., and achieve the effects of safe use, good detection repeatability, and simple and convenient use.

Inactive Publication Date: 2016-04-27
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no instrument to detect the volume change of the hydrogen storage alloy powder during the hydrogen absorption process

Method used

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  • Device for detecting hydrogen absorption process volume changes of hydrogen storage alloy powder
  • Device for detecting hydrogen absorption process volume changes of hydrogen storage alloy powder
  • Device for detecting hydrogen absorption process volume changes of hydrogen storage alloy powder

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A device for detecting volume change during the hydrogen absorption process of hydrogen storage alloy powder, comprising a hydrogen storage bottle 1, a pressure reducer 2, a valve 3, a pressure gauge 4, a flange 5, a reactor 6, a heat exchanger 10, and a pressure plate 8. Reactor 6 is a quartz glass reactor. The hydrogen storage bottle 1 is connected to the reactor through the pressure reducer 2, the valve 3, the pressure gauge 4 and the upper flange 5, and the upper flange 5 is installed with a vent line; the constant temperature tank 7, the circulation pump 14 and the heat exchanger 10 form a Closed-loop system, and the reactor is connected through the lower flange 5; the hydrogen storage alloy powder layer 9 is placed in the reactor 6, the upper part of the alloy powder layer 9 is equipped with a pressing plate 8, and a copper or stainless steel powder sintered filter 13 is installed on the pressing plate; A temperature-measuring thermocouple 11 is installed in the e...

Embodiment 2

[0029] A device for detecting volume change during the hydrogen absorption process of hydrogen storage alloy powder, including a hydrogen storage bottle, a pressure reducer, a valve, a pressure gauge, a flange, a reactor, a heat exchanger system, and a pressure plate. Six copper sintered filters with a filtration precision of 10 microns are installed on the stainless steel pressure plate. Fully activated TiFe in a glove box with an inert gas 0.85 mn 0.15 The alloy powder is placed in a quartz glass reactor, the stainless steel pressure plate is placed on the alloy powder layer, and the quartz glass reactor is connected to the gas cylinder through a flange. Set the temperature of the constant temperature tank to 20°C, read the initial volume scale of the pressure plate, open the gas cylinder, adjust the hydrogen filling pressure to 3.0MPa, the alloy starts to absorb hydrogen and expand, push the pressure plate to move, release heat at the same time, and the temperature of the ...

Embodiment 3

[0031] A device for detecting volume change during the hydrogen absorption process of hydrogen storage alloy powder, including a hydrogen storage bottle, a pressure reducer, a valve, a pressure gauge, a flange, a reactor, a heat exchanger system, and a pressure plate. Four stainless steel sintered filters with a filtration precision of 5 microns are installed on the stainless steel platen. Fully activated LaNi in a glove box with an inert gas 5 The alloy powder is placed in a quartz glass reactor, the stainless steel pressure plate is placed on the alloy powder layer, and the quartz glass reactor is connected to the gas cylinder through a flange. Set the temperature of the constant temperature tank to 40°C, read the initial volume scale of the pressure plate, open the gas cylinder, adjust the hydrogen filling pressure to 2.0MPa, the alloy starts to absorb hydrogen and expand, push the pressure plate to move, release heat at the same time, and the temperature of the heat exchan...

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Abstract

The present invention relates to a device for detecting hydrogen absorption process volume changes of hydrogen storage alloy powder, and belongs to the technical field of hydrogen storage alloys detection. The device for detecting hydrogen absorption process volume changes of the hydrogen storage alloy powder is characterized by comprising a hydrogen storage bottle, a reactor and a heat exchanger; the hydrogen storage bottle is connected with the reactor by a pressure reducer, a valve and a flange plate, the heat exchanger is mounted on the bottom of the reactor, the hydrogen storage alloy powder is placed in the reactor, a press plate is mounted on the upper part of the hydrogen storage alloy powder layer, and the reactor is externally marked with a scale. The device for detecting hydrogen absorption process volume changes of the hydrogen storage alloy powder has the features of easy use, high detection precision, good detection repeatability, use safety and the like, and is particularly suitable for the detection of hydrogen absorption process volume change parameters of various types of hydrogen storage alloy powder.

Description

technical field [0001] The invention belongs to the technical field of hydrogen storage alloy detection, and in particular relates to a device for detecting the volume change of hydrogen storage alloy powder during the hydrogen absorption process. Background technique [0002] Hydrogen storage alloy is a kind of energy conversion functional material. Utilizing its reversible hydrogen absorption and desorption characteristics and accompanying thermal effects, hydrogen storage alloys can be used in many occasions, such as 1) using its high hydrogen storage density as a hydrogen storage material to solve the storage, transportation and use of hydrogen; 2) Utilizing its selective hydrogen absorption characteristics, it can be used for hydrogen recovery, refining, concentration and separation of deuterium and tritium; 3) using its temperature-pressure conversion characteristics, it can realize the conversion of thermal energy and mechanical energy, and make heat pumps, heat pipes...

Claims

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Application Information

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IPC IPC(8): G01N33/20
CPCG01N33/20
Inventor 王森黄岳祥陈达秦来顺
Owner CHINA JILIANG UNIV