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1. Carbon dioxide flow rate issue in coke reactivity and post reaction strength experiment
You mentioned that the flowmeter is calibrated with CO2 when it leaves the factory, but you did not mention whether the scale on the flowmeter is calibrated according to the medium of cracking and scattering, that is, whether the scale on the flowmeter body is marked with the air flow scale or the CO2 scale when it leaves the factory. So I cannot directly calculate the result for you. But I can provide you with a conversion formula: Qs=Qn multiplied by the root (Pn/Ps), where Qs: flow rate in use m3 (cubic) Qn: flow rate in standard state m3 (cubic) Pn: medium density at division kg/m3 Ps: measured medium density kg/m3. You can calculate it based on the factory calibration using the above formula. For better understanding, let me give you an example of using a float flowmeter for CO2 flow meters commonly used in coke reactivity. For example, when choosing LZB-4, its factory calibration range is air flow rate range of 0.04-0.4 (m3/h) cubic meters per hour, with Pn=1.205 kg/m3 (density constant of air under standard conditions). If you want to measure CO2, what position should the scale on this flowmeter be when CO2 flow rate is 5L/MIN? PS: 1.842kg/m3 (density under CO2 standard conditions) Using the above formula to represent various parameters: 5L/MIN=Qn multiplied by the root (1.205/1.842), the calculated Qn value is 0.37m3/h. This means that when you measure CO2 with a float flowmeter calibrated with air ranging from 0.04-0.4, the float scale at 0.37 corresponds to the flow rate of 5L/MIN CO2. Be sure to pay attention to the conversion of units in the above equation. Calculate the process yourself. Every word was writt
2. Calculation formula for gas flow rate
According to the 24-hour uniform gas consumption calculation, the density of carbon dioxide at room temperature and pressure is 1.977 kg/m3, and the density is 15.635 kg/m3 at a pressure of 0.8 MPa. The total gas consumption in 24 hours is 15 tons, which is converted into a rock volume flow rate of 15000 kg/15.635 kg/m3=959 cubic meters (operating flow rate). According to the uniform gas consumption calculation, the gas consumption per hour is about 40 cubic meters (operating flow rate).
. If the general gas transportation flow rate is calculated at 10 meters per second, then the pipeline should be a DN40 pipeline. If considering the unevenness of gas consumption, DN50 or DN65 pipelines can be considered. If the flow rate of the pressure reducing valve is calculated according to standard conditions, then a 360 cubic meter pressure reducing valve should be selected. 3. What equipment should be used and how to batch test whether the vacuum packaging is evacuated? Batch testing of whether the vacuum packaging is evacuated can be carried out using a packaging bag sealing tester, using vacuum attenuation method or CO2 tracer gas method for detection. 1. Vacuum decay method: Place the test package in the testing chamber and evacuate it within the set time. If there is a leak in the packaging, the vacuum degree of the chamber will change. The vacuum sensor measures the pressure difference, and the flow meter measures the leakage rate. The instrument analyzes the size of the leak based on this, and the result is displayed as high pass or f