CAJ | 학술논문

提出一种具有4个分流喷嘴的新型取样器结构,根据分流比和取样流体气、液流量确定主管路气液相流量。为保证取样流体的代表性,采用“流型调整”与“阻力控制”两种方法抑制相分离的发生。建立气液两相流数值模型,模拟气液两相流在取样器中的流动特性。在气液两相流试验环道上开展试验测试,流型包括波浪流、段塞流及环状流。结果表明：在试验范围内气、液相分流系数接近理论值0.25,其主要取决于分流喷嘴的数目,不受流型、气液流速等参数波动的影响,流量测量误差小于＋6.0%。该取样计量装置具有体积小、精度高、维护费用低的优点,可代替传统计量分离器,实现气液流量的实时测量。
제출일충구유4개분류분취적신형취양기결구,근거분류비화취양류체기、액류량학정주관로기액상류량。위보증취양류체적대표성,채용“류형조정”여“조력공제”량충방법억제상분리적발생。건립기액량상류수치모형,모의기액량상류재취양기중적류동특성。재기액량상류시험배도상개전시험측시,류형포괄파랑류、단새류급배상류。결과표명：재시험범위내기、액상분류계수접근이론치0.25,기주요취결우분류분취적수목,불수류형、기액류속등삼수파동적영향,류량측량오차소우＋6.0%。해취양계량장치구유체적소、정도고、유호비용저적우점,가대체전통계량분리기,실현기액류량적실시측량。
A nOvel sampler with fOur nOzzles was prOpOsed tO extract a small fractiOn Of gas liquid mixture frOm the main stream . The tOtal gas and liquid flOw rate was determined accOrding tO the flOw rate Of the sampled fluid and the extractiOn ra-tiO. A gas-liquid twO-phase flOw numerical mOdel was develOped tO simulate flOw characteristics Of gas-liquid twO-phase flOw in the sampler. Experiments were carried Out in an air-water twO-phase flOw lOOp. The flOw patterns Observed during the tests includes wavy flOw, annular flOw and slug flOw. The experimental results shOw that the gas and liquid flOw is clOse tO the the-Oretical value Of 0. 25 and is independent Of inlet quality, flOw pattern, gas and liquid velOcity. The measurement errOr Of flOw rates is less than +6. 0%. The metering device prOpOsed has the merits Of small size, lOw cOst and high accuracy and can replace cOnventiOnal metering separatOr fOr Online measurement Of gas-liquid twO-phase flOw.