Nov, 2016 turbine flowmeters use the mechanical energy of the fluid to rotate a pinwheel rotor in the flow stream. Measuring or working principle of turbine flow meter youtube. Dynamics of turbine flow meters technische universiteit eindhoven. When choosing flowmeters, one should consider such intangible factors as familiarity of plant personnel, their experience with calibration and maintenance, spare parts availability, and mean time between failure history, etc. A technoeconomical system is designed using microcontroller based turbine flow meter to measure flow of water in solar water heater. Series turbine meter, the included factory calibration will provide dependable and accurate flow information. Turbine type volumetric flowmeters, if q is the volumetric fluid flow rate to be measured and n the speed of rotation of the turbine, have a response curve density at kinematic viscosity c 7 in centistokes automobile petrol or gasolene 0. Jun, 2019 sinoinstruments insertion turbine flow meters provide significant cost, savings for line sizes from 2 to 80. Jul 22, 2016 the output frequency is used to represent flow rate and totalization of fluid passing through the turbine flow meter.
Turbine meters began to be applied extensively in the petroleum industry in the mid1960s. Flow range from 1 to 10 up to 20 to 200 gpm formerly known as the rg45b flotech pfm6 digital portable hydraulic tester. A wide variety of turbine flow meter options are available to you, such as free samples. A flow meter or flow sensor is an instrument used to measure linear, nonlinear, mass or volumetric flow rate of a liquid or a gas.
Photograph of the rotor of turbine flowmeter, instromet. For dongyang turbine flow meters, you should provide a backpressure downstream pressure of at least 1. Considering their use in critical applications, ensuring that you are using the right type of meter with the correct level of. A turbine flow meter is used for volumetric total flow andor flow rate measurement and has a relatively simple working principle. As fluid flows through the meter, the velocity of the fluid creates rotational energy on the turbine rotor.
The output frequency is used to represent flow rate and totalization of fluid passing through the turbine flow meter. Turbine flow meter is the most popular equipment to measure flow electronically. We provide best solutions that will meet the extreme conditions. This is another area where pd flow meters excel, repeatability of 0. One or two magnetic pickoffs are mounted in a boss on the meter body. They offer a wide flow and application rangeability. Turbine flow meters flow metering technologies flowquip. An example of a turbine flow meter used in past field tests is the omega ftb4605 turbine flow meter.
The sensor signal is converted to an intelligent signal output by a microcomputer processor design. Generally, it is common practice to install a strainer upstream to a turbine flow meter for protection against particulates. Hp turbine water meters offer some of the widest flow ranges of any turbine meters on the market. Pdf in the modern age of industrialization measuring the flow of fluid in. The pickoff mountings are oriented with the pickups 90 electrically out of phase. Industrial flow metersflow transmitters texas instruments ent types of flow meters available on the market. Industrial flow meters flow transmitters texas instruments ent types of flow meters available on the market. Comprehensive technical introduction of turbine type flowmeter. These meters are used in multiple industries to reliably measure the velocity of a variety of liquids, gases and vapors. Upon initial startup of the system a spool piece should be installed in. These devices function by converting the kinetic energy in the flowing fluid into potential energy represented by a differential pressure measured across a flow restriction in the pipe. Turbine flow meters are designed with wear resistant internal components to provide troublefree operation and a long service life. As liquid or gas passes through the turbine housing, it causes the freely suspended turbine blades to rotate. The rotational speed of the rotor is directly proportional to the velocity of the fluid travelling through the meter.
Some turbine flow meters offer low cost water meter solutions with accuracy typically around 3% full scale, while others offer high accuracy of 1% or better. Choosing the flow meter size bearing selection pickoff selection calibration requirements these components are interrelated and should be consid ered as a system to obtain optimum meter performance. Turbine flow meters use the mechanical energy of the liquid to rotate a rotor in the flow stream. The rotations are measured and calculated to provide a proportional measurement relative to flow rate. Turbine meters measure flow using the mechanical energy of the fluid or gas to rotate a turbine rotor within the flow stream inside the meter.
This familyowned business started out making variable flow switches for the automotive industry and today services concrete, defense, chemical processing, mining, wastewater, energy, electronics, laboratories, medical, and many other industries. Turbine flow meter is designed to withstand the rigorous demands of the most. To prevent possible damage to the meter, install the meter only in flow lines that are clean and free of debris. Flange type turbine flow meter the ftf70 turbine flowmeter is widely used for low flow, low viscosity liquid measurements. We have a variety of standard and specialty turbine flowmeters. Flange type turbine flow meter buy flange type turbine. Since the publication of api standard 2534 measurement of liquid hydrocarbons by turbine meter systems in march, 1970, the turbine meter has gained broad acceptance for custody transfer. Industrial flow measurement basics and practice abb group. The angular rotational velocity of the turbine rotor is. The blancett 1100 turbine flow meter is designed to withstand the demands of the most rigorous flow measurement applications. Omega ftb700 series turbine flow meter has an unique system preciselymachined helical rotors and highquality jewel bearings. Pdf design and fabrication of a turbine flow meter researchgate. Turbine flowmeter series altm hm general altm turbine flow meters altm turbine flow meters hereinafter referred to as turbines are used for the precise measurement of instantaneous flow of lowviscosity fluids rates and flow quantities such as.
One of the limitations of turbine flow meters is the fact that they have to be used only with clean, lowviscosity, noncorrosive fluids. Blades on the rotor are angled to transform energy from the flow stream into. As the rotor spins, an electrical signal is generated in the pickup coil. Turbine flow meter model number selection and sizing guidelines there are 4 major steps in defining a turbine flow meter. Flow meter manuals, drawings, certifications, and other. The most common flowmeter type is the head type meter. Turbine flow meter is a volumetric measuring turbine type.
Series bf turbine flow meters with ezin connections provide a costeffective alternative to typical flangedmeter applications. Fluid characteristics single or double phase, viscosity, turbidity, etc. The flowmeter internals will eventually wear when the turbine flowmeter is installed in a dirty type of flow application. Flow meters can be returned for repair or overhaul and our certified, purposebuilt, inhouse calibration rigs enable most types of flow meter, including a turbine flow meter, to be recalibrated if required and a new calibration certificate issued. Certain hoffer turbine flowmeter series may be enhanced for use in slurry type flow applications. Turbine flowmeters use the mechanical energy of the fluid to rotate a pinwheel rotor in the flow stream. All onicon insertion type meters can be installed and. Liquid flows through the pipe causing a rotor to spin.
Hoffer oval gear positive displacement flow meters. Propeller type current meters similar to the purely mechanical ekman current meter, but now with electronic data acquisition can be traversed over the area of the penstock and velocities averaged to calculate total flow. With high accuracy, wide turndown, and a unique lowmass rotor design without welded joints, the insertion turbine flow meter gives you the benefit, of more than 10 years of practical experience. Obviously, the pressure at the base of the blade is lower than the free stream pressure. Exploring the different types of water meters flowmetrics. With comparatively low pressure drop for inline meters, turbine flow meters deliver unprecedented accuracy. Blancett 1100 turbine flow meter turbine flow meters. Electromagnetic meters, also known as mag meters, are a variant of velocity type water meters. As fluid flows through the turbine meter, it impinges upon turbine blades that are free to rotate about an axis along the center line of the turbine housing.
All hp turbine water meters meet or exceed the latest performance and accuracy requirements of awwa c701 and maximum continuous flow rates may be exceeded by as much as 25% for intermittent periods. There is no need of bulky remote electronics system. Small magnets on the rotor hub are electronically detected by a solidstate halleffect sensor outside the wetted area. Flotech turbine flow meters measure the flow rate of hydraulic and compatible liquids. Daniel series 1200 and 1500 liquid turbine flow meter systems combine turbine meters and electronic instrumentation to measure volumetric total flow andor flow rate. As the turbine blades pass the magnetic field, generated by the pickoff, a frequency signal is generated.
Turbine flow meter use a free spinning turbine wheel to measure fluid velocity, much like a miniature windmill installed in the flow stream turbine flow meter. A turbinetype flow meter comprising a conduit having a portion of graduated cross section, a rotor having vanes, flexible rotor support means affixed at one portion thereof to said conduit, said rotor being supported on said support means, and means to alter the length of said support means exposed to flexure under influence of a fluid flowing through said. The angular velocity of the rotor results in the generation of an electrical signal ac sine wave type in the pickup. Jan 10, 2019 a turbine flow meter is a volume sensing device. It is a closely held company owned and operated by erik and lars rosaen. All flow lines should be purged prior to installing the meter. Fluid flow through the meter impinges upon the turbine blades which are free to rotate about an axis along the center line of the turbine housing.
Sinoinstruments insertion turbine flow meters provide significant cost, savings for line sizes from 2 to 80. Each daniel turbine meter is comprised of a cylindrical housing that contains a precise turbine rotor assembly. Publishers pdf, also known as version of record includes final. Industrial flow metersflow transmitters texas instruments ent types of flow meters available on. The velocity of the turbine rotor is directly proportional to the velocity of the fluid passing through the flow meter.
The external pickoff mounted on the body of the flow meter, senses. This frequency signal is proportional to the fluid velocity and is transmitted to a. Sinoinstruments gas turbine flow meter, is perfect choice for natural gas flow rate measurement. Flow through a large penstock such as used at a hydroelectric power plant can be measured by averaging the flow velocity over the entire area. Gas turbine flow meter, is the flange type turbine flow meter. During times of high flow, a turbine portion can be in use then, when flow decreases, water can be diverted to a multijet or positive displacement portion for improved accuracy. Turbine flow meter working principle instrumentationtools. Trigasdm turbine flowmeter have a wide range of applications. The rate of wear is a function of flow velocity, the type of slurry service, and. One type of conventional flow meter utilizes an axial flow turbine that is.
The working principles and design of turbine flow meters are well documented. When choosing flowmeters, one should consider such intangible factors as familiarity of plant personnel, their experience with calibration and maintenance, spare parts availability, and mean time between failure. This turbine flow meter uses a hall effects sensor to generate the pulsed. If you want to know more about how a turbine flow meter could help you, or you would like more. It features a rugged 316 stainless steel housing and rotor support assemblies, cd4mcu stainless steel rotor, and abrasiveresistant tungsten carbide rotor shaft and journal bearings. Turbinetype volumetric flowmeters, if q is the volumetric fluid flow rate to be measured and n the speed of rotation of the turbine, have a response curve density at kinematic viscosity c 7 in centistokes automobile petrol or gasolene 0. The flowing fluid engages the rotor causing it to rotate at an angular velocity proportional to the fluid flow rate. Insertion turbine flow meterinsertion type turbine flow meter. The ftb1400 series turbine meter repair kit is designed for easy field service of a damaged flow meter, rather than replacing the entire flow meter see appendix b on page 12 for repair kit information. Euturb consists of a multiplebladed rotor mounted in a pipe, perpendicular to liquid flow. The fundamental design goal of a turbine flow meter is to make the turbine element as free spinning as possible, so no torque will be required to sustain the turbines rotation. Turbine flowmeters are available for both liquid and gas applications.
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