As a kind of important steam secondary energy, in a manufacturing enterprise is widely used in measuring steam flowmeter, and has been more and more concerned. The main purpose of the steam flowmeter include monitoring energy efficiency, improve the technology process and measuring steam, internal or external trade or settlement measurement. Steam metering problems have been at home and abroad, at present, the difficulty in the measurement in domestic steam measurement error, there are still many aspects of many users tend to think that purchase high quality flowmeter is can get the exact measurement results. While steam metering is different from other fluid medium, such as water, air in actual measurement of the factors affecting its precise measurements. So often appear flowmeter, and practical verification qualified itself, but "no" phenomenon of measurement. Steam flow measurement accuracy of the influence factors are mainly in the following aspects: (1) the actual steam flow meter below the minimum precise flow or above the highest precise flow meter (span less than), (2) flow downstream installation (straight section of existing flow disturbances), (3) steam density compensation is not correct (temperature and pressure compensation is not accurate), (4) steam aqueous two-phase flow); ( (5) the existence vibration and interference, (6) differential pressure differential transmission of flowmeter appear error, (7) flowmeter after a long time of deviation, etc.
This paper from the actual work of various problems encountered in the job, often contacts with several flowmeter as research object, the key to steam metering common problems and analyze the methods to solve the problems.