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technical article
Application of vortex flowmeter in oilfield refinery
2011-11-17 8:32:00

   是目前应用范围比较广泛的一种仪表。 Vortex flowmeter is a kind of instrument with a wide range of applications. 检测式涡街流量计 电容检测式涡街流量计 两种 It is mainly divided into two types: piezoelectric detection type vortex flowmeter and capacitance detection type vortex flowmeter . Although it is very convenient to use, there are also some malfunctions and problems.

  没有提供好准确的管道内径 ;为什么会有这样的问题出现呢? For example, one company's staff did not provide a good and accurate pipe inner diameter ; why is there such a problem?

仪表的内径与管道内径要一致 1. The inside diameter of the meter should be consistent with the inside diameter of the pipeline ;

在选型时要特别注意; 2. Pay special attention when selecting models;

考虑介质 ,如 温度、密度、介质的脏污程度 3. Consider the medium , such as temperature, density, and the degree of soiling of the medium .

     特点 Characteristics of vortex flowmeter

    电路先进 功耗微低 量程比宽 结构简单 阻力损失小 先进 Advanced circuit ; 微 Low power consumption ; Wide range ratio ; 简单 Simple structure ; Small resistance loss ;   坚固耐用 用途广 使用寿命长 工作稳定 便于安装调试 ⑹Sturdy and durable ; 广 Wide use ; 长 Long service life ; 稳定 Stable work ; ⑽Easy to install and debug .

    应用中 难免会出现一些不必要的问题;那 怎么处理这些干扰因素 呢? Some unnecessary problems will inevitably occur in the application ; how to deal with these interference factors ?  

    涡街流量计 共有两种: 电容检测式涡街流量计 压电检测式涡街流量计 At present, there are two types of vortex flowmeters on the market : capacitance detection type vortex flowmeter ; piezoelectric detection type vortex flowmeter .

    During use, the main problems are:

流量发生变化时,仪表指示不发生变化 a. When the flow rate changes, the meter indicates no change ;

仪表指示不准 始终无法直视 b. Instrument indication is inaccurate or cannot be seen directly

大流量 情况下, 指示准确 小流量 情况下, 指示不准 确; c. In the case of large flows , the instructions are accurate ; but in the case of small flows , the instructions are not accurate ;

指示波动范围大,无法读取 数据。 d. The indication has a large fluctuation range, and the data cannot be read .