Determination of the Breathing Volume of the Breathing Valve
The calculation content of the breathing valve is mainly to determine the breathing volume, which is determined according to the following conditions:
① When the storage tank outputs materials, the pressure in the storage tank is reduced, and gas needs to be inhaled to maintain the pressure balance in the storage tank;
②When filling materials into the storage tank, the pressure in the storage tank will increase, and the gas needs to be removed to maintain the pressure balance in the storage tank;
③Exhalation or inhalation (commonly known as thermal effect) caused by the increase or decrease of vapor pressure in the storage tank caused by the influence of climate, etc.
④ The storage tank is heated during a fire, causing a sharp increase in evaporation and causing exhalation.
The breathing volume caused by the first three causes is called the normal breathing volume, and the breathing volume caused by the latter is called the fire breathing volume.
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