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Shanghai Automation Instrumentation Co., Ltd.
Address:No.191 Guangzhong Road (West) Shanghai
Tel:86-21-59189606
Fax:86-21-60917975
Website:www.sc-saic.com/english
E-mail: tom.saic@gmail.com

Installation and use of the turbine flowmeter
Release time:2016-11-08   Clicks:814

Turbine flowmeter is one of the most typical velocity flow meter, Shanghai Automation Instrumentation Co., Ltd. is a more than three decades of production-oriented enterprises, a complete and extensive experience in this area.

To give full play to the characteristics of the turbine flow meter, a flow meter is installed on must also be sufficient attention. SUMMARY The following discuss this aspect of the question.

Turbine flowmeter measured fluid, generally low viscosity low corrosive liquid off. Although there are already a variety of media measurements for turbine flowmeter, but the high temperature, high viscosity, highly corrosive media measurement still need to carefully consider and take appropriate measures. When larger medium viscosity, the meter factor must be real fluid flow meter calibration, otherwise it will cause large errors. Vapor-liquid two-phase, gas-solid flow, phase fluids can not be measured disaster flowmeter.

Uneven velocity distribution of the inner tube and the presence of secondary flow is an important factor in turbine flowmeter measurement accuracy of. Therefore, the turbine flowmeter upstream and downstream straight pipe has certain requirements. For industrial measurement, generally require straight pipe length upstream 20D, downstream 5D's. To eliminate the secondary flow, preferably at the upstream end of the installation of the rectifier. If the upstream end of the straight pipe to ensure there is about 20D, and the installation of the rectifier, measurement accuracy can reach the level of accuracy of the meter was calibrated.

Turbine flowmeter fluid cleanliness have higher requirements, the meter must be installed before the filter to ensure clean fluid.

To ensure the indicator on the pulse signal output from the turbine sensors have sufficient sensitivity, it is necessary to improve the signal to noise ratio. To this end, Shanghai Automation Instrumentation Co., the installation should prevent all kinds of electrical interference, namely electromagnetic induction, and electrostatic capacitance. Therefore, when configuring the signal transmission line, it must be noted.

When the pipe turbine flowmeter needs cleaning, you must open the bypass, the cleaning liquid electromagnetic flowmeter can not dive. Piping system must be open when you start bypass in order to prevent a sudden increase in flow rate, causing excessive damage to the turbine speed. Electromagnetic flow meter turbine bearings should be changed regularly, and can be used to observe the wear of the bearing according to the characteristics of its small changes in flow.

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