As there are many factors affecting the flow meter, such as the physical properties of the fluid, the technical requirements of the instrument, installation requirements, environmental conditions, and economy, the principle of the flow meter is as many as more than 10 types and nearly 200 types, which must be comprehensively considered. Use it reasonably. Flow meters should pay special attention to accuracy and pressure loss in energy monitoring.
Accuracy: In the energy monitoring, the accuracy of the flow meter should be placed in an important position, and GB17167 also made reasonable and clear provisions for this purpose. Since it is required to accurately quantify the effect of energy conservation and consumption reduction, the flow meter should have The necessary accuracy, otherwise, knowing what you know and what you will do. The results of monitoring are ambiguous. How to assess the energy-saving effect, how to treat the disease, and how to take energy-saving measures? Of course, it is not as accurate as possible, because highly accurate instruments are expensive. Still seeking truth from facts, reasonable selection of monitoring objects, such as monitoring the accuracy of natural gas, fuel meter up to 0.5 ~ 1 level; water vapor can be lower, for the 1.5 ~ 2.
Therefore, some flow meters, such as instruments that measure flow at measuring speeds (double venturis, tubes, etc.), are not suitable for energy testing, especially if the length of the straight pipe does not meet the requirements, and the flow velocity distribution in the pipe is not symmetrical. When it is not ideal, it should not be used.
Pressure loss: Here, the flow meter is used to monitor energy and assess energy-saving effects. It not only cannot save energy, but also has permanent pressure loss, energy consumption, and increase operating costs due to structural reasons such as resistance. Different instrument structures Differently, there will be greater differences in pressure loss and energy consumption. Therefore, as an instrument for monitoring energy saving and consumption reduction, instruments with smaller pressure loss should be used as far as possible.
Reminder: Shengen Automation http://welcome to reprint, please keep the address when reprinted Sheng En Automation Equipment Co., Ltd. to take industrial automation as the main attack direction, the liquid level pressure measurement expert, professional to provide input level transmitter, pressure transmission Controller, electronic pressure switch and other equipment. Hotline 0731-82614729
Accuracy: In the energy monitoring, the accuracy of the flow meter should be placed in an important position, and GB17167 also made reasonable and clear provisions for this purpose. Since it is required to accurately quantify the effect of energy conservation and consumption reduction, the flow meter should have The necessary accuracy, otherwise, knowing what you know and what you will do. The results of monitoring are ambiguous. How to assess the energy-saving effect, how to treat the disease, and how to take energy-saving measures? Of course, it is not as accurate as possible, because highly accurate instruments are expensive. Still seeking truth from facts, reasonable selection of monitoring objects, such as monitoring the accuracy of natural gas, fuel meter up to 0.5 ~ 1 level; water vapor can be lower, for the 1.5 ~ 2.
Therefore, some flow meters, such as instruments that measure flow at measuring speeds (double venturis, tubes, etc.), are not suitable for energy testing, especially if the length of the straight pipe does not meet the requirements, and the flow velocity distribution in the pipe is not symmetrical. When it is not ideal, it should not be used.
Pressure loss: Here, the flow meter is used to monitor energy and assess energy-saving effects. It not only cannot save energy, but also has permanent pressure loss, energy consumption, and increase operating costs due to structural reasons such as resistance. Different instrument structures Differently, there will be greater differences in pressure loss and energy consumption. Therefore, as an instrument for monitoring energy saving and consumption reduction, instruments with smaller pressure loss should be used as far as possible.
Reminder: Shengen Automation http://welcome to reprint, please keep the address when reprinted Sheng En Automation Equipment Co., Ltd. to take industrial automation as the main attack direction, the liquid level pressure measurement expert, professional to provide input level transmitter, pressure transmission Controller, electronic pressure switch and other equipment. Hotline 0731-82614729
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