Steam flow meter
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Steam flow meters exhibit certain errors over prolonged use: 1. It is not possible to stop the steam supply in the process pipelines during production. 2. How to perform verification without shutting down production. 3. **Are there instruments for comparing and calibrating measurement units that allow for online testing without shutting down production?** 4. Which department at what level is qualified to conduct inspections for measurement units?
I don’t think I’ve heard of it; it’s a test that doesn’t require shutting down the device.
This post was last edited by altpage on 2021-9-12 08:03. Is this flow meter intended for process control or for measurement and billing purposes? If it is used for measurement and settlement, mandatory inspection is required; for details, refer to the List of Meters Subject to Mandatory Inspection in the People’s Republic of China. You may consult the local market supervision authority for further information. If it is used for metering and settlement but cannot be stopped during the production process, a bypass valve should be installed to facilitate calibration ； A calibration plan can also be prepared to carry out calibration during plant shutdown. Additionally: The verification of measuring instruments subject to mandatory verification is generally carried out at the XX City Metrology and Inspection Institute. It’s free of charge.
It depends on what type of flow meter you have. Don’t rush to have it calibrated; calibration can only determine whether it is accurate or not. If it isn’t accurate, the quality supervision agency is not responsible for carrying out adjustments, so you’ll have to solve this problem on your own. Since steam is a gas, temperature and pressure compensation is necessary. If this compensation isn’t done properly, the measurements will inevitably be inaccurate. You must understand what the purpose of the instrument is: for any measurement to be valid, it must be taken under the operating conditions specified during its design. If the actual operating conditions deviate from those design specifications, compensation becomes essential; otherwise, inaccurate measurements are to be expected.
Split vortex street? ? What you want to ask is whether there are any means for direct measurement and calibration, right? I also want to ask this question
Vortex flow meter； Thank you for the reply from above.