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. 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 ℃ ～ + 250 ℃. 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. Vortex flowmeters can be divided into stress type, strain type, capacitive type, thermal type, vibrating body type, photoelectric type and ultrasonic type according to the frequency detection method.
是属于最年轻的一类流量计,但其发展迅速,目前已成为通用的一类流量计。 Vortex flowmeters belong to the youngest type of flowmeters, but they have developed rapidly and have now become a universal type of flowmeters. Advantages: (1) Simple and firm structure; (2) Many types of applicable fluids; (3) High accuracy; (4) Wide range; (5) Small pressure loss. Disadvantages: (1) Not suitable for low Reynolds number measurement; (2) Long straight pipe section required; (3) Low meter coefficient (compared to turbine flowmeter); (4) Meter in pulsating flow, multiphase flow Lack of application experience.
测焦炉煤气不稳定原因与解决办法涡街流量计是一种用途极广泛的流量仪表，几乎可以用在所有气体，液体和蒸汽的流量计测量和控制，我公司研制开发具有国际先进水平的新一代HHWJ系列数字智能电磁流量计，它突破了传统模拟方式处理涡街信号的局限，通过现代数字信号处理的方法对涡街探头信号进行识别、筛选，从而得到正常的流量信号，极大的提高涡街的抗震性能，从根本上解决了围绕涡街几十年来不抗震问题，它广泛应用于石油化工、轻工、热电、造纸等行业的给水、给盐、给风的流量。 Vortex flowmeter for measuring the instability of coke oven gas and solutions Vortex flowmeter is a very versatile flow meter, which can be used for measurement and control of almost all gas, liquid and steam flowmeters. The international advanced level of the new generation of HHWJ series digital intelligent electromagnetic flowmeters, which breaks through the limitations of traditional analog processing of vortex signals, and uses modern digital signal processing methods to identify and screen vortex probe signals to obtain normal flow signals It greatly improves the seismic performance of Vortex Street, and fundamentally solves the problem of seismic resistance around Vortex Street for decades. It is widely used in water, salt, and wind for petrochemical, light industry, thermal power, papermaking and other industries. flow. Vortex flowmeters are more commonly used for measuring coke oven gas, but there will be some problems. The reasons and solutions for these problems: The reasons for the failure of the on-site metering system can be summarized into two major reasons. Caused by a flow meter or its associated equipment. The second is the non-flow meter reasons, that is, the flow meter is normal, but the environment or system causes the failure, which is difficult to find. In addition to requiring technicians to be familiar with the performance of the instrument, they must have extensive knowledge and rich field experience to perform analysis, reasoning, and multi-party tests before they can confirm. Some failures are caused by unexpected events.