Temperature and pressure compensated vortex flowmeter

Project Overview

The temperature and pressure compensation vortex flowmeter is an advanced instrument for measuring fluid flow in industrial pipeline media. It combines the basic principles of the vortex flowmeter with the temperature and pressure compensation technology. The flowmeter is a key device for measuring fluid flow. , whose accuracy directly affects the control of the production process, the assessment of resource consumption, and the accounting of economic benefits.

However, during the actual flow process of fluid, its temperature and pressure are often subject to dynamic changes. These changes will have a significant impact on the readings of the flow meter, leading to measurement errors. Therefore, implementing temperature and pressure compensation technology for flow meters is of great significance to improving measurement accuracy and ensuring data accuracy.

1. Basic Principles

The vortex flowmeter is a new type of flowmeter that measures fluid flow in closed pipes based on the Karman vortex principle. When the fluid flows through the vortex generator of the vortex flowmeter, two rows of regular vortices will alternately be generated on both sides. The release frequency of these vortices is proportional to the average flow rate of the fluid. It can be calculated by measuring the release frequency of the vortices. Flow rate of fluid.

2. Features and advantages

(1) High precision: The temperature and pressure compensated vortex flowmeter can accurately measure the flow of fluid and eliminate temperature and pressure changes through temperature and pressure compensation technology. The influence on the measurement results improves the accuracy of the measurement.

(2) Wide applicability: This flowmeter can be used to measure various media such as gas, liquid, steam, etc., and has wide applicability.

(3) Good stability: Due to the use of advanced technologies such as piezoelectric stress sensors, the temperature and pressure compensated vortex flowmeter can work stably for a long time and maintain good measurement performance.

(4) Easy maintenance: The flowmeter has no moving mechanical parts, so the maintenance is small, and the instrument parameters can be stable for a long time.

(5) Easy to use: The flow meter has analog standard signal and digital pulse signal output, and is easy to be used with digital systems such as computers to facilitate automatic control and remote monitoring.

3. Application fields

Temperature and pressure compensated vortex flowmeters are widely used in various industries such as petrochemical, metallurgy, textile, medicine, machinery, water supply, heating, thermoelectricity, scientific research and other industries. Process measurement and energy-saving management of single-phase fluids such as liquids, gases, and steam. It plays an important role in industrial process control and energy management and measurement.

IV. Technical Parameters

The technical parameters of the temperature and pressure compensated vortex flowmeter include measurement medium (gas, liquid, steam), caliber specifications (such as flange card-mounted caliber selection 25, 32, 50, 80, 100, etc.), flow measurement range (such as normal measurement flow rate range Reynolds number 1.5 × 104 ~ 4 × 106; gas 5 ~ 50m/s; liquid 0.5 ~ 7m/s), measured medium temperature (normal temperature –25℃～100℃; high temperature –25℃～150℃ -15℃～300℃), accuracy grade (such as 0.5 grade, 1.0 grade), range ratio (such as 8:1, 12:1, 30:1), etc. . The specific values ​​of these parameters will vary depending on theVaries with different models and specifications.

With the continuous improvement of industrial automation level and the continuous development of measurement technology, flow meter temperature and pressure compensation technology is also constantly improving and improving. In the future, with the integration and application of advanced technologies such as smart sensors, Internet of Things technology, and big data analysis, the temperature and pressure compensation of Supmea measurement and control flow meters will be more intelligent and precise, providing more efficient and reliable solutions for industrial production and energy management. flow measurement solutions.