Ethane flowmeter | Does anyone know the gas flow calculation table

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1. Which soaking medium can be used to disinfect the flowmeter?

For disinfection of flow meters, 75% medical alcohol or 500mg/L chlorine containing disinfectant solution should be preferred for soaking, and specific matching should be made according to the material.. Understanding the material of the flowmeter is key, as metal materials are sensitive to corrosion, while plastic components may be affected by organic solvents. Before processing, first confirm the durability instructions in the equipment manual. Industrial grade flow meters usually have strong durability, but precision medical sensors may require special treatment. 1. Common applicable soaking medium: • 75% alcohol: suitable for corrosion-resistant parts such as metal and glass. Soak for 10-30 minutes and rinse with clean water to avoid residual effects on the accuracy of quick warning. Chlorine containing disinfectant (such as 84 dilution): soaked in a 1:100 ratio for 30 minutes, it has a high virus and bacterial inactivation rate, but aluminum components should be used with caution. 3% hydrogen peroxide: compatible with most materials, no residue after decomposition, recommended for medical device disinfection, soaking for 20 minutes. two Operation precautions: Organic glass or rubber sealing rings should avoid alcohol and acidic solutions, and use quaternary ammonium salt disinfectants instead. The flow meter for the food industry can choose peracetic acid (0.2% -0.5% concentration), which has both bactericidal and easy to rinse characteristics. After disinfection of medical grade equipment, it is necessary to detect the biological load, and in some scenarios, high-pressure steam or ethylene oxide sterilization should be combined. Contem

2. Does anyone know the gas flow calculation table?

Note 1: The flow range listed in Table 2 is calibrated under the following conditions: for gas, it is air (ρ 0=1.293kg/m3) at a temperature of 0 ℃ and a standard atmospheric pressure.

(1) According to the lower limit flow rate Qmin given in Table 2, the reference medium density ρ 0 (gas ρ 0=1.293kg/m3; Liquid ρ 0=1000kg/m3; Calculate the lower limit flow rate Qmin ρ for different medium densities using the following formula: steam ρ 0=2.1628kg/m3 and medium density ρ; Qmin ρ=Qmin ρ 0/ρ (m3/h)

(2) The viscosity lower limit flow rate Qmin ν Qmin ν=6 ν D × 104 (m3/h) can be calculated based on the kinematic viscosity of the medium used. In the formula: D - inner diameter of the pipeline (mm) ν - kinematic viscosity (m2/s). Compare Qmin ρ and Qmin ν, and take the larger value as the lower limit flow rate of this type of flowmeter when used in this medium. Explanation: B. The upper limit flow rates for various media are shown in Table 2. In general, the upper limit flow rate of liquid is 6m/s; The upper limit flow rate of gas or steam is 4

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