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technical article
Knowledge of using vortex flowmeter
2011-11-18 8:47:40

流量计 主要用于工业管道介质流体的流量测量, 如气体、液体、蒸气等多种介质。 Vortex flowmeters are mainly used to measure the flow of medium fluids in industrial pipelines , such as gases, liquids, vapors and other media. 量程 范围大, 精度高 , 在测量 工况 体积流量时几乎不受流体密度、压力、温度、粘度等参数的影响。 It is characterized by small pressure loss , large measuring range and high accuracy . It is hardly affected by parameters such as fluid density, pressure, temperature, and viscosity when measuring working volume flow. No moving mechanical parts, so high reliability and low maintenance. Instrument parameters can be stable for a long time. The vortex flowmeter uses a piezoelectric stress sensor with high reliability and can work in the operating temperature range of -20 ° C to + 250 ° C. 脉冲信号 输出, 容易与计算机等数字系统配套使用 , 是一种比较先进、理想的流量仪表。 It has analog standard signal and digital pulse signal output . It is easy to be used with digital systems such as computers . It is a relatively advanced and ideal flow meter.

流量计 适用于 气体、液体、蒸气等多种介质 Vortex flowmeters are suitable for various media such as gas, liquid, and vapor . 采用消扰电路和抗振动传感头,具有一定抗环境振动性能 采用超低功耗单片微机技术,锂电池可使用5 年以上 压力损失小,量程范围 非常 It adopts anti-disturbance circuit and anti-vibration sensor head, has certain anti-vibration performance , and adopts ultra-low power consumption single-chip microcomputer technology. The lithium battery can be used for more than 5 years , with small pressure loss and a very wide range . No moving mechanical parts, so high reliability and low maintenance. Is a very widely used automatic meter. 涡街 流量计 的使用寿命,使之更有效的工作。 However, the use of the meter must pay great attention to maintenance. Maintenance during use is very important. It can extend the life of the vortex flowmeter and make it work more effectively.

涡街流量传感器 没有 运动部件, 即使 长时间运行没有磨损 也不需要 经常维修。 1. The vortex flow sensor has no moving parts, and even if it is not worn for a long time, it does not require frequent maintenance. If the inspection finds that the detection holes of individual probes are clogged with dirt, the probes of the vortex flowmeter should be cleaned regularly. When the measured medium is not pure or there are deposits, you can periodically clean the sensors according to the actual situation. Restoring the effect of use can also increase the service life.   

因为有的探头并不是防潮的,所以如果 安装环境中探头潮湿,应定期烘干一次,或作防潮处理。 2.Because some probes are not moisture-proof, if the probe is wet in the installation environment, it should be dried once or moisture-proof.
避免在架空的长管道上安装,因为流量计的下垂容易造成 流量计 于法兰的密封泄露,若不得已必须在流量计的上下游2D 处分别设置管道紧固装置。 3. Avoid installing on overhead long pipelines, because the sag of the flowmeter can easily cause the leakage of the seal of the flowmeter to the flange. If necessary , a pipe fastening device must be installed at the 2D upstream and downstream of the flowmeter .
防爆型涡街流量传感器现场维修时,不允许带电维修和现场使用仪器仪表,使用的万用表电源不应大于9VDC 4. When the explosion-proof vortex flow sensor is repaired on site, it is not allowed to carry out live maintenance and use instruments on site. The multimeter power supply used should not be greater than 9VDC . The management of instrument data should attract enough attention to facilitate future work.