Abstract: the wedge meter scale assessment guide information produced by excellent flow meter
, flow meter manufacturer to offer you the quotation.
In recent years, the wedge flowmeter
has been gradually accepted by the masses of users, before gradually replace segmental orifice and other non-standard differential pressure flowmeter, so relative to other wedge flowmeter differential pressure flowmeter, and exactly what are the unique?
More flow meter manufacturers choose model price quote you are welcome to inquire, here is a wedge meter scale assessment guide article details.
In recent years, the wedge flowmeter has been gradually accepted by the masses of users, before gradually replace segmental orifice and other non-standard differential pressure flowmeter, so relative to other wedge flowmeter differential pressure flowmeter, and exactly what are the unique?
Wedge meter range than wide, suitable scope of Reynolds number between 300 ~ 106, and is especially suitable for high viscosity fluid measurement, such as chemical plant all kinds of high viscosity fluid and sewage;
A dirty gas, such as blast furnace gas, coke oven gas measurement;
Also can be steam, natural gas and other gas measurement.
Wedge flowmeter based on its own unique design improves the sharp degree of orifice entrance requirements, improve the measurement accuracy.
Loss of pressure is smaller than orifice.
The company produces the wedge flowmeter in 60 degrees - wedge Angle
Between the 90 degrees, the smaller the Angle, the static pressure difference, the greater the loss of pressure also increases accordingly.
Because of the wedge flowmeter throttle were inverted triangle, this shape has guide effect, fluid flows can smooth transition.
Compared with the orifice plate, pressure loss of the wedge of flowmeter is smaller.
With self-cleaning function.
Wedge flowmeter in field application, when the fluid contains impurities or solid, easy to flow from the lower part of wedge flowmeter, not deposit around the orifice plate, namely the wedge orifice has self-cleaning effect.
Wedge flow meter used in low Reynolds number RD flow measurement.
This feature is also a very crucial point, and many other meter cannot reach;
Standard orifice, venturi tube should not be measured under low Reynolds number.
Standard orifice discharge coefficient is usually tends to be stable when ray number more than 4000, in a low Reynolds number, the flow coefficient will change along with the change of Reynolds number.
When the Reynolds number is less than 1800, the flow and the square root of will deviate from the basic relation between differential pressure, it will be a big influence on measurement accuracy.
And wedge is orifice throttling element, v-shaped flow coefficient linear good, with the curve of the nozzle inlet fluid, the characteristics of viscous flow area, Reynolds number effect on its small.
When the Reynolds number as small as 500, wedge the accuracy of flow meter and flow coefficient changed little;
Reynolds number between 400 and 10000 for the flow measurement, the error is less than & plusmn;
Wedge flowmeter installation easy to use.
Compared with the orifice, wedge with flange can be connected to the process piping on both ends of the flowmeter, easy installation, small amount of daily maintenance, operating costs are relatively cheap.
Wedge flowmeter advantage mainly depends on its design, but also has its disadvantages, caliber shoulds not be too big commonly,
300 the following)
Field application, need to flow calibration.
Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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