煤矿用流量计检定装置的设计

Design of Calibration Device for Mine-used Flowmeters

针对煤矿流量计检定装置采用单一的称重法或标准表法存在精度低、成本高、操作繁琐等问题,提出了一种综合称重法和标准表法的煤矿用流量计检定装置的设计方案,即采用称重法定期标定标准表或者检定较高精度的流量计,用标准表法检定流量计。该方案既保留了称重法可靠、稳定、准确度高的优点,又继承了标准表法效率高、装置无须频繁换向、使用寿命长的优点,保证了整套检定装置的精度。

In view of problems of low precision, high cost, trouble operation existed in calibration devices for mine-used flowmeters which simply use weighing method or standard meter method, the paper put forward a design scheme of calibration device for mine-used flowmeters which integrates weighing method and standard meter method together, namely using weighing method to calibrate standard meter regularly or flowmeter with high accuracy and using standard meter to calibrate flowmeter. The scheme not only retains advantages of reliability, stability, high accuracy of the weighting method, but also inherits features of high efficiency, non-frequent switch, long life of standard meter method, which ensures calibrating accuracy of the device.