Development And Application Of Several Gas-solid Reaction Test Devices

In recent years,the frequent occurrence of haze has seriously affected people's daily life.The use of fossil fuels is the main cause of this situation,so it is urgent to find a renewable green energy.Hydrogen energy is recognized as the ideal energy carrier and clean energy which has development potential.The advantages of hydrogen energy are high calorific value,environmental friendliness,and abundance.At the same time,hydrogen isotopes deuterium and tritium can also be used in nuclear reactors,and it produces enormous amounts of power,which provides an economic and effective way to ease the world energy crisis,.Therefore,many countries have invested a lot of funds to develop related technologies,including hydrogen production,hydrogen storage and transportation and hydrogen utilization,among which the hydrogen storage and transportation as well as utilization technology involves the application of many hydrogen storage alloy materials.This article considers the requirements of the testing properties of hydrogen storage materials and the use of hydrogen isotope.We develop three kinds of gas-solid reaction test device which are based on LabVIEW.Then comparisons are made between the laboratory equipment with the domestic and foreign structures with the same type.Finally we put them into practical application.The main research work and results are as follows:Firstly,a test device which can be only used for testing the cycle life of hydrogen storage materials is established.The device has three channels and reliable performance.It can carry out full automatic activation and run long-term cycles.Then the leakage rate of the device is detected with the result of less than 10-9 mol/s.Afterwards,cycle activation program is written according to the application requirement.At last,we run the program to test,and the test results show that the device has stable performance which can meet the need of multiple cycle test,and achieve the goal of saving time.Secondly,a set of automatic hydrogen storage performance testing device is established.The design process is from the conceptual structure diagram to SolidWorks 3D virtual assembly diagram and then to the construction of the entity.After the completion of the construction,the equipment is debugged from four aspects,which are the thermostatic device self-tuning,the data acquisition card testing,the leakage rate testing and the volume calibration.Then the design of automatic PCT test program is optimized,appending the manual PCT test program,equipment's ventilation program and equipment's purging program,and other functions.And the creation of the source code to protect and hide program block diagram is created.Finally,we put forward solutions about the problems which occur during program running,and compare it with the domestic and foreign well-known equipments on the test curves and the technical indicators.The results show that the device works well,the test results are accurate,and the cost is effective.Thirdly,a quantitative filling system of hydrogen isotope elementary gases is constructed.The system is based on two methods,volume method and flow-controller method.The detailed mathematical models are established.According to the latest equation state of hydrogen and deuterium gas,the real gas density calculation program is compiled and the results are compared with the standard values.Then the measurement and control program is written based on volume method and flow-controller method.At last,performance of the quantitative filling system is evaluated by the method of quality comparison.The results show that the control program of the system is designed reasonably,and can accurately control the filling amount of hydrogen isotope single elementary gas.The quantitative filling accuracy can reach 0.001 g.