『Installation requirements for steam flow meters』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. Requirements for the installation of steam pipe flow meters The core requirements for the installation of steam pipe flow meters can be summarized into nine aspects: grounding protection, position selection, direction angle, etc. Strictly following these requirements can ensure the accuracy of measurement and the stability of equipment. 1. Installation and Grounding - Strictly follow the instructions for installation, and measure the grounding resistance value to be ≤ 10 Ω after completion. -Equipotential bonding wires should use multi strand copper bundle wires with an area of ≥ 16mm ², and instrument grounding wires should use wires of the same material with an area of ≥ 6mm ²
. 2. Installation location selection - avoid strong vibration, high temperature/radiation heat sources, and corrosive environments. If unavoidable, shock-absorbing short joints or protective covers should be installed. -Outdoor installation should be equipped with sunshade and rainproof measures, and kept away from strong magnetic field equipment such as ferromagnetic objects, large motors, transformers, etc. -Priority should be given to selecting a location that is convenient for maintenance operations. Installation direction and angle - horizontal, vertical, and inclined installation are allowed. When measuring liquids, ensure that the fluid flows from low to high; -Unrestricted gas flow direction; -When measuring steam or high-temperature gases, the support column of the meter body should form a 45 ° angle with the vertical direction. 4. Requirements for straight pipe sections - upstream retention of equal diameter straight pipe sections of ≥ 10D (recommended 20D), downstream ≥ 5D. - It must be installed horizontally in the pipeli
6. Bypass detection pipe and valve settings - Install shut-off valves before and after the flow meter and set up bypass pipelines to ensure that the grinding maintenance does not stop. -The flow control valve is placed downstream of the flow meter, and the upstream valve is kept fully open during use. 7. External environmental control - indoor installation is preferred, and outdoor measures such as sun protection, rain protection, and lightning protection should be taken. -The ambient temperature should be controlled between -20 ℃~+60 ℃, humidity should be less than 85%, and dry ventilation should be maintained. 8. Maintenance points in the later stage - After the pipeline is first filled with steam or high-temperature medium, the flange bolts should be re tightened and the pipeline insulation should be implemented. -The valve and sealing gasket in front of the pressure transmitter should be intact and leak free, and the installation position should be located 4 times the diameter downstream of the flowmeter.
2. Installation requirements for straight pipe section of steam vortex flowmeter
The installation requirements for straight pipe section of steam vortex flowmeter are as follows: the basic installation direction and concentricity dispersion require the flowmeter to be installed horizontally on the pipeline
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