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在原油贸易交接计量时,体积管是现场检定流量计的标准装置,体积管水标是确定体积管标准容积值及其重复性、复现性的重要方法。为保证体积管水标成功率和体积管标准容积值的准确与可靠,从水标所涉及的诸多环节出发,充分考虑各环节可能存在的细小问题,结合多年的工作经验,筛选出具有代表意义的关键点,从原因、造成的影响及改进措施或建议等方面展开阐述。实际水标工作中,人员、环境、设备等任何一方面的因素均可能会影响检定工作的顺利进行,而很多容易被忽视的细小问题,如滴漏控制、离心泵气密性与发热程度等,往往会使检定过程陷入困境,不仅浪费大量的时间、人力和物力,而且可能导致错误的检定结果。
In the custody transfer measurement of crude oil, the volumetric tube is the standard device for on-the-spot verification of the flowmeter. The volumetric gauge is an important method to determine the standard volumetric value of the volumetric tube and its repeatability and reproducibility. In order to ensure the success rate of the volumetric water mark and the standard volume value of the volumetric tube accurately and reliably, from the many links involved in the water mark, the small problems that may exist in each link are fully considered. Combined with years of work experience, The key points, from the reasons for the impact and improvement measures or suggestions and other aspects of expansion. In actual water mark work, personnel, environment, equipment and other factors may affect the smooth progress of the verification work. Many small and easily neglected problems such as drip control, the airtightness and fever level of centrifugal pumps, etc., Often the verification process is in trouble, not only wasting a lot of time, manpower and material resources, but also may lead to false test results.