Solutions
Solutions
Measurement should be accurate: temperature, pressure, flow, liquid level, weight.
Control to fine: process control, material ratio, trade handover, advanced control (APC).
Process to be solid: material balance, energy balance, reduce waste pollution, energy saving and emission reduction, stable quality, high yield.
The influence of precision is small: pressure, temperature, liquid level, weight change fluctuation is small, mature technology, high measurement accuracy; High precision of secondary instrumentation, transmission network and data processing and conversion.
The influence of accuracy is large: the medium working condition is complex, the flow change is large, flow is the most important, the most complex, the most difficult to measure the process parameter; The accuracy of the system is determined by the accuracy of flow measurement, which is an important measure to save energy, reduce emission and increase efficiency.
System accuracy: five parameters acquisition and calculation model synthesis control system accuracy, determines the process accuracy and production efficiency.
Mistake: trade handover precision is important, process control precision is not important.
Process: Process control consists of a number of micro-trade transactions, which are accounted for by semi-finished and finished products.
Results: If the process control precision is poor, material, energy imbalance, process fluctuation. Resulting in lower yield, more waste, more energy consumption, more pollution emissions.
Current situation: flowmeter types are complicated, the overall accuracy is low, and the accuracy level is unreasonable.
Pain point: parameter change, site installation conditions are not guaranteed, generally inaccurate measurement, error 2%~5%~10%~20% is very common.
Objective: To save energy, reduce emission and increase efficiency. It is necessary to improve the accuracy of instrument measurement system and control precision, and reduce the fluctuation of process.
Solution: The flow meter and control plan should be configured and optimized at the plant level at the beginning of construction.
To achieve energy saving, emission reduction and efficiency of flow meter requirements
Make the orifice a Venturi!
High precision 0.5% The straight pipe section is short 2D Low pressure loss 30%DP The range is wider than the width 7:1~10:1 Good repeatability 0.1% Wide adaptability G\L\S Perfect realization of two-way flow measurement
Tik Tok
Tik Tok
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