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1. What is compressed air flow meter mainly used to measure? Compressed air flow meter is mainly used to measure the instantaneous flow rate, cumulative bending flow rate, and gas parameters under working conditions of compressed air. 1. Core measurement object • Volume flow rate: the air flow rate under standard operating conditions (20 ℃, 1atm) or actual operating conditions, usually measured in Nm ³/h or m ³/h. • Mass flow rate: calculated through temperature and pressure compensation, commonly used in kg/h per buried slag position. • Cumulative flow rate: used to calculate energy consumption or production, such as the total output of an air compressor. 2 Key parameter measurement • Pressure range: 0-1.6 MPa (for conventional industrial use) or special high-pressure models • Temperature range: -20 ℃~80 ℃ (for models with PT100 temperature sensors) • Accuracy level
1.5 level (economic type) or 1.0 level (high-precision type) 3 Typical application scenarios - Air compressor outlet flow monitoring - Pneumatic equipment gas consumption detection - Compressed sock source air pipe network balance debugging - Energy Management System (EMS) data acquisition 4. Technical implementation methods: Thermal mass flow meter (direct measurement of mass flow) Vortex flow meter (with temperature and pressure compensation) Ultrasonic flow meter (non-contact measurement) Note: GB/T 34036-2017 standard in 2023 stipulates that industrial gas flow meters must have Modbus RTU communication protocol.
2. When adjusting the flow meter for atomization, what is the appropriate setting?
The adjustment value of the flow meter for the atomization system does not have a unified fixed value. It needs to be matched with the typ
1. Typical adjustment parameters for different media (1) Gas atomization scenario (such as compressed air assisted atomization) 1 Micro precision atomizing nozzle for laboratory and small-scale spraying: adjust the rotor flow meter to 0.2~2 m ³/h, and with a supply pressure of 0.2~0.4 MPa, it can generate fine mist with a particle size of 10~50 μ m; 2. Industrial level large flow atomization (dust reduction, cooling): adjust the vortex street/mass flowmeter to 3~10 m ³/h, cooperate with 0.5~0.8 MPa air supply pressure, and cover the range of 10~50 ㎡ spray. （2） Liquid atomization scene (such as water and drug atomization) 1 Laboratory small atomization device: equipped with a gear flowmeter adjusted to 0.01~0.1 L/min, it can achieve micrometer level uniform mist droplets, suitable for drug aerosol and small humidification scenarios; 2. Industrial spraying or humidification spray gun: Adjust the unperforated turbine flow meter to 0.1~2 L/min, with a supply pressure of 0.3~0.6 MPa, to match the flow requirements of conventional pneumatic spray guns.
2. Key points for adjustment and verification 1 First, confirm that the range of the flowmeter matches the rated flow rate of the nozzle. It is strictly prohibited to operate beyond the range and cause measurement errors to be amplified; 2. The flow rate and atomization pressure need to be adjusted in conjunction. When the pressure increases, the flow rate should be appropriately reduced to avoid excessive droplet size or strong jet flow; When
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