Scale velocity-equalizing tube flowmeter metering applications in industrial power plant

Abstract: the scale velocity-equalizing tube flowmeter metering applications in industrial power plant information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. With the rapid development of power industry, all kinds of efficient new technology, new technology has been put into use. Advanced technology need to match the high precision control and measurement. H2O to steam in the boiler and turbine, boiler, gas, wind full essence of various kinds of medium flow. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a scale velocity-equalizing tube flowmeter metering applications in industrial power plant article details. With the rapid development of power industry, all kinds of efficient new technology, new technology has been put into use. Advanced technology need to match the high precision control and measurement. H2O to steam in the boiler and turbine, boiler, gas, wind comprehensive accurate measurement of various medium flow is to ensure its safe and economic operation of one of the necessary conditions. There are many types of flow measurement products, according to the zui broad classification can be divided into: volumetric flowmeter, differential pressure flowmeter, flow meter, turbine flowmeter, electromagnetic flowmeter, vortex flowmeter and mass flowmeter, etc. Various flow meter has its own characteristics, there is no one way to measure or flowmeter can for all kinds of fluid and can adapt to all kinds of flow conditions. Different requirements for different measuring method and structure, operation, use methods and conditions of use. Each meter has its advantages and disadvantages, therefore, in a variety of measurement methods and instrumentation features for a comprehensive understanding of comparison on the basis of the choice is suitable for the characteristics of the specific production, is safe, reliable and economic durable zui flow measurement products. A differential pressure type flow measurement of orifice plate with uniform velocity tube is 1. 1 species currently differential pressure type flow measuring devices, and zui widely used in industrial measurement or differential pressure type flow measurement, differential pressure type of mainstream products for the throttle type ( Orifice plate and venturi tube, etc. ) And the dynamic pressure head type ( Velocity-equalizing tube) 。 Using the principle of differential pressure flow rate measurement is the engineering zui classic reliable flow measurement methods, differential pressure flowmeter is according to the installation in pipe flow test of differential pressure, the fluid known conditions and geometry size of test pieces and pipeline to calculate the flow. By a differential pressure type flowmeter device ( Detection) And the second device ( The differential transformation and flow display instrument) Composition. Usually in the form of test pieces classification of differential pressure flowmeter, such as orifice meter, venturi meter, velocity-equalizing tube flowmeter, etc. The pipe flow test pieces of the differential pressure, the greater the cost for differential pressure transmitter type selection and the more benefits, also good for the accuracy of measurement. But because of the flow measurement device is usually choose according to flow volume shrinkage ratio ( Orifice, nozzle) And therefore improve the pressure loss of the differential pressure at the same time also can produce increases. * in the pipeline pressure loss increase need to increase the pipe, it need high power blower, pump, etc. , increases the energy consumption, increase the operation cost of the whole system. Differential pressure on behalf of the product for the orifice flowmeter, because its installation, use and maintenance are very familiar with, and the orifice plate is easy to copy, simple, firm, stable and reliable performance, long service life, low price, so for a long time to apply widely. But the orifice plate using a long time, precision will fell sharply, the need for periodic inspection and cleaning. 1. 2 velocity-equalizing tube flowmeter measurement principle velocity-equalizing tube flowmeter is measured by a replacing orifice diameter on the velocity of cross section of flow velocity, as velocity-equalizing tube cross section and opening technology continuous development, increasing the accuracy of measurement. Xi 'an sanlian measurement and control technology of the delta and adopted streamlined velocity-equalizing tube flowmeter tube design, traffic detection is by inserting medium pipeline velocity-equalizing tube on the two rows of uneven distribution of selecting pressure hole to detect produced by fluid differential pressure, draw a mean difference of pressure caused by the average flow velocity, and the differential pressure through the interface to the transmitter. Through multiple uneven pressure hole, can truly reflect the average flow velocity in pipe as far as possible. Makes it not only stay in the flow measurement precision, high strength and large span ratio, also greatly reduce the pressure loss of the pipeline. Using plug flow probe compared with using orifice plate, due to the pressure loss of the pipeline is reduced, the economic benefit is very obvious.

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