FlowT Instrument (Shenzhen) Limited：Your Trustworthy Vortex Flow Meter Manufacturer！
Our Company is established by flow measurement professionals with more than 20 years of experience in flow measurement and flow standards. We are pioneers in the ultrasonic flow measurement industry and possess many years of experience valuable to our customers. Furthermore, We are innovative and on the cutting edge of ultrasonic technology with some revolutionary measurement techniques being introduced that will bring very high precision and true real time measurement.
Leading Service
We are committed to constantly innovating our products to provide foreign customers with a large number of high-quality products to exceed customer satisfaction. We can also provide customized services according to customers' requirements such as size, color, appearance, etc. We can provide the most favorable price and high-quality products.
Quality Guaranteed
We have been continuously researching and innovating to meet the needs of different customers. At the same time, we always adhere to strict quality control to ensure that the quality of every product meets international standards.
Wide Sales Countries
Our products have been exported to more than 40 countries, such as Russia, Australia, USA, UK, Germany, Ukraine, Iran, Romania, Hungary, Mexico, Brazil, Chile, Canada, Spain, Colombia, etc. We have agents in the USA, Australia, Singapore, Kuwait, Russia.
Various Types of Products
Our products include a wide range of flow meter like Ultrasonic Flow Meter，Electromagnetic Flow Meter, Vortex Flow Meter, Thermal Mass Flow Meter, Turbine Flow Meter, Liquid Level Flow Meter, Gear Flow Meter, Totalizer Flow Meter and so on.
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What is an Vortex Flow Meter?
A vortex flow meter is a type of volumetric flow meter that makes use of a natural phenomenon that occurs when a liquid flows around a bluff object. Vortex flow meters operate under the vortex shedding principle, where vortices (or eddies) are shed alternately downstream of the object.
Advantages Of Vortex Flow Meters
Versatility
These vortex flow meters are highly versatile, capable of effectively measuring the flow of liquid, gas, or steam. This adaptability makes them invaluable in diverse industrial settings.
Durability
Vortex flow meter has few moving parts. This design simplicity means there's less room for failure, resulting in low maintenance and a reduced risk of malfunction.
Independence from temperature and pressure fluctuations
Vortex flow meters can measure flow rates independently of temperature and pressure fluctuations within the system. They provide consistent and reliable data even in dynamic conditions. No conductivity requirement Unlike some flow measurement technologies, vortex meters do not require a specific level of conductivity in the flow media. This makes them a great solution for deionized water systems.
Low setup cost
These meters are cost-effective to install. That feature makes them especially attractive for businesses looking to improve flow measurement without a significant financial outlay.
Maintenance of vortex flow meter
1. During the installation and connection process, the vortex flow meter should ensure the accuracy of each link, and it is necessary to ensure the safety control of the instrument wiring and system grounding wire during the site inspection and installation process. Real data is detected and can be output accurately.
2. For the metering system in operation, the method of “confirmation of glass tube level gauge” and “alternative method” can be used to confirm and eliminate the faults of the meter in operation.
3. Regularly clean the vortex flow meter as a whole, and if necessary, purge the sensing head of the vortex flow meter to avoid condensation of impurities at the sensor head. In the cold season, the addition of a heat tracing device to the metering straight pipe section and the meter section is also advantageous for alleviating the condensation of impurities at the metering gauge.
4. Drain the pipeline regularly, especially the water before the straight pipe section. Regularly set the discharge according to the specific conditions, reduce the moisture in the measuring pipe section as much as possible, and eliminate the pulsation in the fluid to the utmost extent.
Strengthen the management of the integrated vortex flow meter measurement system data, set the timing printing function, and analyze the operation of the instrument based on the print data combined with the production status.
How Does a Vortex Flow Meter Work?
The vortex flow meter operating principle is the Von Kármán effect. When a fluid flows around an obstacle, it creates a series of alternating vortices, or swirling eddies. The phenomenon is also called the Von Kármán vortex street.
The meter uses this principle to predict the pattern of these vortices using the the Von Kármán. From there, it can calculate the flow rate from the vortex frequency.
The output signal of the meter is a low voltage signal proportional to the vortex frequency. It then converts to volumetric flow rate. That's the volume of fluid that flows through the system over time.
This method can also calculate the mass flow rate if the density of the fluid is a known constant. The vortex frequency across the meter can be measured by a variety of sensors, which will be discussed below.
Common Vortex Flow Meters Types
There are many types of vortex flow meters. Below, we will discuss some of the common options.
Piezoelectric sensor
Piezoelectric materials naturally produce a small electrical charge when they experience mechanical pressure. These materials are often used in sensors that measure a measurable mechanical stress. If the vortices created within the meter are strong enough, they produce a mechanical stress that the sensor can measure. The piezo element used in sensors is usually a ceramic component.
01
Capacitance sensor
This sensor uses two probes on opposite walls of the pipe. They calculate flow rate based on the positive and negative pressure the vortices generate across the probes.
02
Ultrasonic sensor
This type of sensor emits a signal from a transducer in one wall of the pipe that bounces across the pipe and is measured by a second transducer. The number of vortices will slow the signal and that time variation can be measured to calculate the flow.
03
Integrated temperature sensor
In addition to measuring the flow rate, some flow meters can also provide temperature readings. These sensors are usually built into the shedder bar to avoid any disruption to the vortices.
04
Measurement Medium And Conditions
Medium type: The vortex flow meter is mainly used to measure the volume flow rate of gas, steam or liquid, the volume flow rate of standard conditions or the mass flow rate.
Medium flow rate
The full-scale flow rate of the vortex flow meter can be selected within the range of 0.5-12m/s for the measured medium flow rate. When the pipeline flow rate is low and cannot meet the requirements of the flow meter or the measurement accuracy cannot be guaranteed at this flow rate, it is necessary to reduce the instrument caliber to increase the flow rate in the pipe and obtain satisfactory measurement results.
Temperature range
The vortex flow meter can operate in the operating temperature range of -20℃ to +250℃.
Instrument type and specifications
Instrument type: Depending on the measurement medium, different types of vortex flow meters can be selected, such as the LUB series intelligent vortex flow meter, the HSC vortex flow meter series, the HZB vortex flow meter series, etc.
Instrument specifications (caliber)
When selecting instrument specifications (caliber), it is not necessarily the same as the process pipeline. It should be determined whether the measurement flow range is within the flow rate range.
Pressure and temperature compensation
Pressure compensation: Since the saturated steam pipeline is long and the pressure fluctuation is large, pressure compensation must be used. According to the saturated steam pressure range of the pipeline, select the appropriate pressure transmitter range.
Temperature compensation
The selection of vortex flow meter also needs to consider the temperature range of the measuring medium to ensure measurement accuracy.
Accuracy and functional requirements
Accuracy level: Select the instrument accuracy level according to the measurement requirements and the occasion of use. For example, for occasions such as trade settlement, product handover and energy metering, a vortex flow meter with a higher accuracy level should be selected.
Functional requirements: Depending on whether remote monitoring, data transmission and other functions are required, select a vortex flowmeter with corresponding functions.
Cost and maintenance
Cost: Consider the purchase cost of the vortex flow meter, as well as the cost of subsequent installation, commissioning and maintenance.
Maintenance: Select a vortex flow meter with a simple structure, high reliability and low maintenance to reduce maintenance costs.
Flow Range
Determine the expected flow range for your application. Vortex flow meters have a specified flow range within which they provide accurate measurements. Ensure that the flow range of the vortex flow meter aligns with your application requirements, including both minimum and maximum flow rates.
Fluid Compatibility
Consider the compatibility of the vortex flow meter with the fluid being measured. Vortex flow meters are suitable for a wide range of fluids, but certain materials or fluid prop0erties may require specific options. Verify that the flow meter is constructed from materials that are compatible with the fluid's temperature, pressure, and chemical composition.
Pipe Size and Connection
Select a vortex flow meter that matches the pipe size of your installation. The flow meter's connection should align with the pipe's flange or thread type. Ensure that the flow meter is available in the appropriate pipe sizes and connection options for easy installation and compatibility with your piping system.
Accuracy and Turndown Ratio
Consider the accuracy requirements of your application. Vortex flow meters typically have a specified accuracy level, expressed as a percentage of the measured flow rate. Additionally, evaluate the turndown ratio, which indicates the flow range over which the flow meter can provide accurate measurements. Choose a vortex flow meter with the required accuracy and turndown ratio for your specific application.
Temperature and Pressure Ratings
Evaluate the temperature and pressure conditions of your application. Vortex flow meters have temperature and pressure ratings that indicate their operating limits. Ensure that the selected flow meter can handle the temperature and pressure ranges of your fluid and system to prevent any damage or inaccuracies.
Installation and Mounting Requirements
Consider the installation and mounting requirements of the vortex flow meter. Determine if the flow meter can be installed in the desired orientation (horizontal or vertical) and if any specific mounting considerations are necessary. Additionally, check if there are any upstream or downstream straight pipe requirements to ensure accurate flow measurement.
FAQ
We're well-known as one of the leading vortex flow meter manufacturers and suppliers in China. If you're going to buy high quality vortex flow meter, welcome to get more information from our factory.
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