Current position > Product detail
『Oxygen flow calculation』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
How to calculate oxygen flow rate? The calculation formula for oxygen flow rate is rapid collapse: oxygen flow rate=(oxygen concentration -21) ÷ 4. Oxygen inhalation refers to inhaling oxygen. Moderate oxygen inhalation is used to correct hypoxia, increase arterial oxygen partial pressure and oxygen saturation levels, promote metabolism, and is one of the important methods for assisting in the treatment of various diseases. Oxygen is a simple substance formed from the element oxygen, with the chemical formula O2. Its chemical properties are quite lively and it can react with oxygen, similar to most other elements. At room temperature, it is not very lively and does not easily interact with many substances. But at high temperatures, it is very lively and can directly combine with various elements, which is related to the electronegativity of oxygen atoms being second only to fluorine. Arterial partial pressure of oxygen (PaO2) refers to the uptake of oxygen by arterial blood from the lungs, forming PaO2, which reflects the oxygen uptake status of pulmonary capillaries and is an indicator of external respiration. The level of PaO2 is mainly determined by the oxygen partial pressure of the inhaled gas, which is directly proportional to the concentration of FiO2 and gradually decreases with age. PaO2=100- (0.3 x age) ± 5. PaO2 is the most sensitive indicator of hypoxia, with a normal value of 80-100ml mmHg (FiO2 21% under air suction conditions). PaO260-80mmHg is mildly deficient in O2. PaO245-60mmHg is moderately deficient in O2. PaO2<45 mmHg is severely deficient in O2
2. Calculation formula for oxygen flow rate
The calculation formula for oxygen flow rate is: oxygen concentration=21+4 x oxygen flow rate. This formula is used to calculate the oxygen concentration during nasal cannula oxygen inhalation, where 21 represents the oxygen concentration in the air, and 4 represents an increase of 4% in oxygen concentration for every 1L/min increase in oxygen flow rate. Attention: Scope of application: This formula is only applicable to nasal cannula oxygen inhalation and is not suitable for other methods such as oxygen masks and non-invasive ventilation. Flow rate setting: In clinical practice, the maximum flow rate for nasal cannula oxygen inhalation is usually set at 6L/min. Classification of oxygen inhalation concentration: low concentration oxygen inhalation: oxygen inhalation concentration<30%; Medium concentration oxygen inhalation: 30% 50%; High concentration oxygen inhalation:>50%. Flow classification: Low flow oxygen inhalation: ≤ 2L/min; Medium flow oxygen inhalation: 24L/min; High flow oxygen inhalation:>4L/min. In practical applications, it is necessary to choose the appropriate oxygen flow rate and oxygen concentration based on the patients specific situation and the doctors guidance.
3. Given an oxygen pressure of 0.4MPa and a pipe diameter of 8mm, empty the other end and calculate the flow rate or flow rate in m ³/s_Baidu ..
(p2-p1)/p+(u ^ 2-0)/2=0, p2=1atm, p1=0.4MPa, where u is the rapid release rate of the oxygen gas; Therefore, the flow rate V=u * molar volume of oxygen at this temperature