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What flow meter is used to measure compressed air? There are various instruments that can be used to measure air, but the actual air flow rate used on site is not diverse according to their principles. The most important ones are rotor flow meters, throttling differential pressure flow meters, vortex flow meters, and averaging tube flow meters.
1、 When measuring compressed air, flow meters are usually installed in compressor rooms and blower rooms, and the vibrations generated by the compressor and blower will be transmitted to distant places through air pipes or ducts. Vibration causes the vortex flow sensor to generate interference signals corresponding to the same vibration frequency, resulting in significantly higher flow readings.
2、 Compressed air is taken from the atmosphere, which always contains a certain amount of water vapor. A larger orifice flow meter with a good four diameter orifice plate is used to measure the flow rate of compressed air. There is often water accumulation in front of the orifice plate, which affects the measurement accuracy. There is often a section of water in the pressure pipe, which causes the differential pressure measured by the differential pressure transmitter to be inconsistent with the differential pressure generated by the throttling device. These are common reasons for errors caused by air carrying water.
3、 The fluid at the outlet of compressors and blowers mostly contains some pulsation. Fluid pulsation can cause high readings in various flow meters such as differential pressure flow meters, vortex street flow meters, etc., leading to rotor jumping up and down in rotor flow meters. In order to eliminate the influence of pulsation, a buffer tank is usu
4、 The average speed high flow tube flowmeter has its unique advantages in measuring large caliber air flow, such as low price, simple and reliable, and easy installation and maintenance. It is a supplement to vortex flowmeters and throttling differential pressure flowmeters.
2. Is the compressed air flow meter in the steel plant under standard conditions or working conditions?
1. The compressed air flow meter used in the steel plant should be adapted to the working conditions.
2. Standard conditions and working conditions are two different environmental states, where standard conditions refer to standardized testing conditions.
3. Working conditions refer to the actual working environment conditions, including parameters such as pressure and temperature.
4. If it is necessary to convert the flow data under working conditions into flow data under standard conditions, the conversion formula can be used.
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6. Among them, the working pressure needs to be input in kgf/cm ², while the flow rate is measured in standard state (0 ° C, 1atm).
3. Which brand is more suitable for choosing a compressed air flow meter?
When choosing a compressed air flow meter, you need to first clarify your accuracy requirements, budget, and after-sales service needs, and then match the brand accordingly.
Reference for brand selection with different positioning • International first-line brands (high-end budget) are suitable for large and medium-sized enterprises with extremely high requirements f
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