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『Industrial flow meter』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
1. What are the technologies for measuring condensate flow in industry?
The main technologies for measuring condensate flow in industry include differential pressure flow meters, electromagnetic flow meters, ultrasonic flow meters, and vortex flow meters. The specific selection depends on the working conditions. 1. Differential pressure flowmeter • Principle: The differential pressure liquid is generated through throttling devices (such as orifice plates and nozzles) and converted into flow rate • Applicable scenarios: high temperature and high pressure steam condensate water (≤ 6.4MPa/400 ℃) • Accuracy: ± 1.5%~2.5% • Note: A condensing tank protection transmitter is required. 2 Electromagnetic flowmeter • Principle: Measuring conductive liquids based on Faradays law of electromagnetic induction • Applicable scenarios: Clean condensed water with conductivity ≥ 5 μ S/cm • Accuracy: ± 0.5% • Advantages: No pressure loss, corrosion-resistant 3 Ultrasonic flowmeter • Type: Time difference type (accuracy ± 1%)/Doppler type (applicable to bubbles) • Installation method: external clamp type (no need to cut the pipe)/insertion type • Temperature limit: usually ≤ 150 ℃ 4 Vortex flowmeter • Principle: Detecting vortex separation frequency • Features: Poor vibration resistance, requiring 10D straight pipe section • Range ratio: 10:1 Selection key parameters comparison: | Type | Accuracy | Temperature upper limit | Pressure loss | Minimum conductivity requirement | | ---------------------------------------------------------------------------------------------------------- | | Differential pressure | ± 2% | 400 ℃ | Large | None | Electromagnetic | ± 0.5% | 180 ℃ | None | 5 μ S/cm | Ultrasonic time difference | ± 1% | 150 ℃
2Industrial flow meter
3. Scope of application of industrial dust flowmeter
Industrial dust flowmeter is mainly suitable for online monitoring of dust concentration in gas-solid two-phase flow, covering dust removal systems and process pipelines in industries such as power, metallurgy, building materials, and chemical engineering. Applicable industries and working conditions: Power industry: Monitoring of dust concentration at the inlet and outlet of coal-fired power plant electrostatic precipitators and ash conveying pipelines, used to optimize dust removal efficiency and prevent pipeline blockage. Metallurgical industry: Dust monitoring of blast furnace gas dust removal, converter flue gas, sintering machine tail gas, with a concentration range usually ranging from 5-200g/m ³. Building materials industry: Monitoring of dust in cement plant rotary kiln tail gas, raw material mill/coal mill outlet, grate cooler exhaust gas, with a working temperature of up to 400 ℃. Chemical industry: Measurement of dust flow in fluidized bed reactors and pneumatic conveying systems, requiring explosion-proof certification (Ex d IIC T6). 2. Technical type: Suitable for dry dust with particle size of 0.1-100 μ m, with a measurement range of 0.01-1000mg/m ³ and an accuracy of ± 2%. FS light scattering type: for 0.1-10 μ m fine particles have a sensitive response and are suitable for concentrated concentrations ranging from 1 μ g/m ³ to 10g/m ³. Regular cleaning of the optical window is required Radiation absorption type: used for environmental emission monitoring, with an accuracy of ± 0.5 μ g/m ³ (requiring regular replacement