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1. What are the requirements for flow velocity and straight pipe section of sewage flowmeter?
The requirements for medium flow velocity and straight pipe section of sewage flowmeter are as follows:
1. Medium flow velocity requirements Economic flow velocity range: The pipeline flow velocity usually adopts the economic flow velocity range, which is 1.5-3m/s. When the sensor diameter is consistent with the pipe diameter, the liquid flow velocity at full flow rate can be selected within the range of 1-10m/s. Suggestion for upper limit flow rate: Theoretically, the flow rate is not limited, but it is generally recommended not to exceed 5m/s to avoid unstable measurement or equipment loss caused by high flow rate. Special fluid flow velocity requirements: For fluids that are prone to adhesion, accumulation, and scaling, the flow velocity should not be less than 2m/s, and it is recommended to use a flow velocity of 3-4m/s or higher to achieve self-cleaning and prevent measurement errors caused by medium adhesion. Abrasive fluids such as slurry: The commonly used flow rate should be below 2-3m/s to reduce wear on the lining and electrodes and extend the service life of the equipment. Flow direction requirement: The fluid flow direction must be consistent with the flow meter mark to ensure measurement accuracy. Full pipe requirement: The installation pipeline must always be filled with the measured medium to prevent empty pipe phenomenon. If the medium is not fully filled in the pipeline, it is necessary to modify the pipeline (such as reducing the diameter) to meet the full pipe condition, otherwise it will significantly increase the measurement error.
2. Requirements for straight pipe section: Standard
III. Comprehensive requirements and suggestions for optimizing the operating environment of the grinding stove: It is necessary to create good operating conditions for the sewage flowmeter, including controlling the flow rate within a reasonable range, ensuring the length and direction of the straight pipe section, avoiding negative pressure, etc., in order to maximize its measurement accuracy.
. Special fluid treatment: For fluids that are prone to adhesion or abrasion, the flow rate needs to be adjusted according to the fluid characteristics to balance self-cleaning effect and equipment wear. Installation specifications: Strictly follow the direction indicated by the flowmeter during installation, and ensure that the pipeline is always full to pr
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