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Information Name: | Supply Verabar |
Published: | 2013-03-29 |
Validity: | 30 |
Specifications: | DW |
Quantity: | 200.00 |
Price Description: | |
Detailed Product Description: | The Verabar System Overview LGZW series tube flow sensor (Verabar) on the basis of the pitot tube speed measurement principle, the use of aviation dynamics theory, fluid flow measurement according to the the ISO396 "closed pipeline - velocity area method dedicated to international standards and the design and manufacture of large diameter gas, flue gas, high-precision measurement of the power plant wind flow measurement instrumentation. The set flowmeter display unit constituted by the differential pressure sensing probe and calculated. The system has a wide measuring range, small pressure loss (pressure loss of only 3% of the maximum differential pressure, high efficiency and energy saving), or continuous gas maintenance, less fouling, line cleaning and other outstanding performance is a differential pressure type, rate average flow sensor. The representation of the traffic through the sensor in the fluid, the difference of the average total pressure and static pressure (i.e., pressure), commonly used to measure the flow of liquids, gases and steam. II Verabar speed the design features of the flow probe early speed flow probe, in the cross-sectional design, ignore the critical fluid flow and aerodynamic principles, its scope of application is much more restricted. · Other section type probe, limiting factors: pressure tap easy to plug · big · accuracy signal fluctuations · by fluid traction impact vibration large circular probe (Figure 4.1) fluid separation point is not fixed, the result makes the fluid coefficient K can not be accurately obtained, the measurement accuracy of ± 10.0-20.0% of the diamond-shaped probe (Figure 4.2) has a sharp fixed separation point, will have a lot of liquidity traction caused by the probe vibrations and the signal-to-noise, and there is a stronger end of the probe The partial vacuum, so that the probe low-pressure to the pressure holes are easily clogged. The aerodynamic shape of the probe (Figure 4.3) due to the small range of the high-pressure zone, so its angle of attack is very sensitive to the fluid, resulting in actual measurement accuracy is not reliable, the measurement error is greater than ± 10.0%. And probe Verabar's unique design to rid itself of the Annubar past few speed probe easy to plug the accuracy is not high characteristics, so once a source of measurement accuracy, repeatability and reliability reached a new height. Its main features: the sectional shape of the bullet probe can produce accurate pressure distribution, a fixed fluid separation point; located on both sides of the probe lateral, the low pressure fluid prior to the separation point to take air pressure, can generate a stable differential pressure signal, and the effective anti- blocking. The internal integrated structure to avoid signal leakage probe structural strength to maintain long-term high-precision. Front surface roughening treatment (like the surface of a golf ball) can reduce the fluid traction, improve the measurement accuracy in the low flow rate. The position of the low pressure taps holes to avoid impurity accumulation area, essentially attempts to prevent. |
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Copyright © GuangDong ICP No. 10089450, The Huai'an Dwyer Instrument Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 10689 visitor
Copyright © GuangDong ICP No. 10089450, The Huai'an Dwyer Instrument Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility