CAJ | 학술논문

开发了一种通过测量下落颗粒和靶板碰撞冲击力来确定颗粒流率的流量计,通过试验验证了该流量计的可行性,并研究了颗粒下落速度、颗粒粒度和颗粒密度对流量计的影响.建立了该冲击式流量计的理论模型,利用冷态流化床试验数据对理论模型进行了校验.结果表明：该流量计具有操作简便、测量准确、反应灵敏、易于校准、对提升管内的颗粒流动无干扰的特点;模型计算结果与试验数据较吻合,可利用模型简化流量计的校准程序,增加流量计的应用范围.
개발료일충통과측량하락과립화파판팽당충격력래학정과립류솔적류량계,통과시험험증료해류량계적가행성,병연구료과립하락속도、과립립도화과립밀도대류량계적영향.건립료해충격식류량계적이론모형,이용랭태류화상시험수거대이론모형진행료교험.결과표명：해류량계구유조작간편、측량준학、반응령민、역우교준、대제승관내적과립류동무간우적특점;모형계산결과여시험수거교문합,가이용모형간화류량계적교준정서,증가류량계적응용범위.
A flowmeter has been developed for measurement of solid flow rate by measuring the impact force between dropping particles and the target plate,of which the availability was experimentally verified.Influence of following factors on measurement of the flowmeter was analyzed,such as the dropping velocity,size and concentration of particles.A theoretical model of flowmeter was set up,to which verification tests were made using test data of cold-state circulating fluidized bed.Results show that the flowmeter is charaterized by facile operation,accurate measurement,fast response,easy calibration and little interference on gas-solid flow in the riser.The calculation results based on the model agree well with that of the experiment.Therefore the model may be used to simply the calibration process and subsequently enlarge the application range of flowmeters.