DN300 Vortex Flow Meter

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1. Flow range of steam vortex flowmeter

Code: Tongrentqi radial flow range ㎡/h OW-LU-25 DN25 1~10 (liquid) 25~60 (gas) Steam flow rate Please refer to the instruction manual of Yiyanling for details, For DN300 and above, it is recommended to use the plug-in vortex flowmeter OW-LU-32 DN32 1.5~18 (liquid) 15~150 (gas) OW-LU-40 DN40 2.2~27 (liquid) 22.6~150 (gas) OW-LU-50 DN50 4~55 (liquid) 35~350 (gas) OW-LU-80 DN80 9~135 (liquid) 90~900 (gas) OWLU-100 DN100 14~200 (liquid) 140~1400 (gas) OW-LU-150 DN150 32~480 (liquid) 300~3000 (gas) OW-LU-200 DN200 56~800 (liquid) 550~5500 (gas)

2. Selection of superheated steam flowmeter2>

The selection of superheated steam flow meters should comprehensively consider pipeline diameter, maximum temperature, maximum pressure, flow range, and measurement accuracy. Common types include vortex street, bend pipe V-cone and orifice plate, among which vortex street and bent pipe are more suitable for high temperature and high pressure scenarios, while orifice plate and V-cone are less commonly used due to accuracy and pressure loss issues. The specific selection suggestions are as follows:

1. Common types and characteristics: Vortex simplified code Qingjie flowmeter is suitable for scenarios where the pipeline is less than DN300 and the temperature is ≤ 450 ℃. It is necessary to adopt an integrated design of temperature and pressure compensation to ensure accurate measurement. According to user needs, integrated or split type instruments can be selected, and the instrument diameter can be determined based on the steam consumption of pipelines and equipment. The installation method is flexible (horizontal or vertical), but it needs to meet the requirements of the fr

ont and rear straight pipe sections, avoid pipeline vibration (shock absorption is required when the vibration is large), and pay attention to the impact of high temperature environment on the instrument. Outdoor installation requires protection. Bend flow meters are recommended for use in pipelines larger than DN300, especially suitable for high temperature and high pressure environments. Simple structure, minimal pressure loss, and good long-term stability. Although V-cone flowmeter can be used for steam measurement, its practical application is limited due to the large pressure loss and unclear accuracy advantage. Orifice flowmeter has low measurement accuracy, large pressure loss, and requires frequent maintenance. It is generally not recommended for measuring superheated steam.

2. The core selection criteria are based on the pipeline diameter DN300 as the boundary point: vortex flowmeters are preferred for those smaller than DN300; It is recommended to choose a bent pipe flowmeter for sizes greater than DN300. The temperature and pressure of superheated steam are high (usually>saturated steam temperature), and there are large pressure fluctuations. Therefore, instruments that can withstand high temperature and high pressure should be selected (such as vortex flowmeters that need to support temperatures below 450 ℃). The flow range and accuracy are determined by selecting instruments that match the actual steam consumption range, in order to avoid increasing errors caused by long-term low flow operation. The integrated vortex flowmeter with temperature and pressure compensation can significantly improve the measurement accuracy. Prioritize safety and cost by choosing instruments with simple structures and high

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