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Information Name: | Supply V-Cone |
Published: | 2013-03-29 |
Validity: | 30 |
Specifications: | |
Quantity: | 500.00 |
Price Description: | |
Detailed Product Description: | V-Cone overview of: DW Series V-Cone flowmeter, also known as the inner cone flowmeter, V-cone, cone flowmeter, a new differential pressure flowmeter patented technology, and the other types of differential pressure flowmeter the basic principle is the same, and are based on a sealed pipeline energy conservation principle, the unique design of the TL Series V cone flowmeter, to expand the range of flow measurement, and avoid some of the limitations of the traditional differential pressure flow, better work performance. TL Series V-Cone is hanging in the center of the pipe a conical closure pieces, conical parts hinder the media flow reshape the flow curve, measuring medium include water, steam, air, gas, nitrogen gas, coke oven gas and organic gases, etc.. Medium conditions from deep hypothermia to the supercritical state. Operating temperature up to 450 ° C, the maximum pressure 25Mpa, measurable highest Reynolds number of 5 * 106 8 * 103 or even lower, the minimum Reynolds number. Produce a full-scale differential pressure signal from the lowest to the highest dozens kPa less than 0.1 kPa. The working principle: DW Series V-Cone flow meter is a differential pressure flow meter, differential pressure principle design so far has been 100 years of application history. Differential pressure principle is based on the principle of energy conversion in a sealed pipe that is on the medium flow rate is proportional to the square root of the stability of fluid flow pipeline. When the media close to the cone, and the pressure is P1, the medium through the cone closure zone, the speed is increased, the pressure is reduced to P2, P1 and P2 through tapered flowmeter pressure port leads to differential pressure transmitter on, when the flow rate changes, the value of the differential pressure between the tapered flowmeter two taps will increase or narrowing. The DW Series V cone flowmeter during flow calculation formula is the same as with other differential pressure flow meter, but the unique design of its closure components, forcing the the pipeline media center around the cone liquidity, and other differential pressure flowmeter phase could have many advantages. We can make use of the ideal state of the flow curve maps to understand the performance of the cone flowmeter. Of the fluid in the pipe is not subject to any interference and obstruction, i.e. we said ideal flow pattern, the flow velocity distribution is uniform, the flow velocity near the pipe wall is almost zero, the flow rate of the center of the pipe reaches the maximum, the flow velocity near the pipe wall almost zero, is caused due to the wall friction medium. Since the cone suspended from the center line, he is directly in contact with the high speed region of the fluid, forcing high-speed zone of the fluid mixed with the fluid of near-wall low-speed zone so that the flow rate uniform. So even if the flow rate is very low, conical flowmeter can still make the continuous role of the maximum flow rate of the fluid and the pipe center to produce the correct differential pressure. Reality, the flow rate is difficult to be uniformly distributed, and the impact on any change in the pipe may be provided on the fluid, such as: Bay head, valves, reduced-diameter, expanded diameter, the pump, the three-way, etc., while the tapered flowmeter cones upstream velocity distribution curve shape again, even in a very bad situation, able to ensure the accuracy of the measurement. Features: flowmeter accuracy: ± 0.5%, ± 1.0% and ± 1.5% system accuracy by reference to the precision of the application conditions and the secondary table. Repeatability: better than ± 0.1% range than the width: Under normal circumstances, 10:1, if necessary, may also increase. Straight pipe requirements Low: 0 ~ 3D straight pipe flow meter before and after 0 ~ 1D straight pipe to ensure measurement accuracy. Experiments show that the V-Cone flowmeter can double bend close to the single bend or different plane and has little effect on the accuracy. Good long-term stability: the cone shape design to ensure that the fluid flows through the cone is a gradual process, and no mutation, beta value may remain unchanged for a long time, the instrument can be long-term use without calibration. Signal stability: all differential pressure flow meter will signal fluctuations, which means that even if the fluid is very stable, the signal generated through a throttling element will also fluctuate. The orifice plate, a vortex is formed in the throttle member is longer, these long vortex will produce high-amplitude, low-frequency fluctuation signal, these signals are interested in the differential pressure gauge readings to cause interference. Cone flowmeter will form a small vortex in the downstream to produce the signals of low amplitude, high-frequency fluctuations. Pressure loss is small: the prominent baffle cone flowmeter permanent pressure loss than the orifice plate 3/4 lower. No stranded dead zone: the cone of the "purge" design there is no dead zone, and therefore does not accumulate in the cone fluid debris, sticky residue or impurities. Mixer role: the vortex generated by the V-Cone flowmeter downstream short vortex in the downstream medium mixing Therefore, V cone flowmeter at the same time as the flowmeter work, but also on many occasions with static stirring , full media Stir. |
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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