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在化工生产和科学试验中常常需要用小流量计来测量气体流量(测量范围在100米~3/小时以下),通常采用的是玻璃浮子流量计(LZB系列)或气远传转子流量计(LZQ系列)其精度和准确性主要取决于玻璃管、浮子的制作以及校验的方法。我们自行设计和安装了一套浮筒校验装置,除校验浮子流量计以外,还可校验双重孔板、1/4园喷嘴等非标准节流件。经长期使用,证明其校验效果良好,基本上满足了科研生产的需要。这里,主要对流量校验设备、校验方法以及校验数据的换算作以简要介绍。
In chemical production and scientific experiments, it is often necessary to measure the gas flow with a small flowmeter (measuring range of 100 m to 3 / h or less), usually using a glass float flow meter (LZB series) or a gas remote rotor flow meter LZQ series) its accuracy and accuracy depends mainly on the glass tube, float production and calibration methods. We have designed and installed a set of buoy checker, in addition to check the buoyant flow meter, but also check the double orifice plate, 1/4 Park nozzle and other non-standard throttle. After long-term use, to prove its good calibration results, basically to meet the needs of scientific research and production. Here, the main flow of calibration equipment, calibration methods and calibration data conversion for a brief introduction.