What is the function of a breathing valve? ! !

A breather valve serves the function of releasing both positive and negative pressures. Specifically, when the container is under a certain positive pressure, the breathing valve opens to release gas and thus alleviate the positive pressure; when the container is under negative pressure, the flame arrestor breathing valve opens to draw in gas and thereby reduce the negative pressure. This helps to keep the pressure within a certain range, ensuring the safety of the container. 　　The function of the breather valve flap lies mainly in preventing rapid drops in pressure inside the storage tank. When a large amount of air is drawn into the tank, the flame-arresting breather valve flap acts as a barrier, preventing the airflow from hitting the surface of the oil directly; this helps to reduce oil evaporation. With the barrier in place, the airflow can be directed from a vertical direction to a horizontal one, ensuring that the fresh air drawn in first mixes with the gases at the top of the chamber, where the oil and gas concentration is low, thereby reducing the concentration. When the oil pipe switches from sending oil to receiving oil, what is exhaled is the previously mixed gas at the top, which has a lower concentration. This can reduce oil consumption. Most breather valve flaps are designed to be foldable, which facilitates their insertion or removal through the hole in the roof connection pipe. The diffuser enables the airflow to slow down when its direction changes suddenly, so that it can maintain a higher speed during subsequent movement, allowing the fresh air drawn in to be evenly distributed throughout the upper space of the oil tank. 　　A breathing valve not only helps maintain balance in the pressure inside the storage tank, but also prevents the tank from being damaged under conditions of overpressure or vacuum, while simultaneously reducing the consumption of the medium contained within it. 　　There are also many types of positioners for breathing valves, including pneumatic valve positioners, electrical valve positioners, force-balanced positioners, and so on. Positioners are used in many parts of the breather valve, so certain failures are inevitable during the production process. To ensure the safe operation of the breather valve, it is necessary to eliminate all faults that may occur in the positioners used in its production.

Not bad! The one in the encyclopedia? !

It consists of a pressure valve and a vacuum valve, is installed on the vent pipe of the fuel tank, and can open and close automatically in response to changes in the positive and negative pressures of the gases and liquids inside the fuel tank, thereby keeping the pressure difference between the inside and outside of the fuel tank within acceptable limits.

Exhaust when pressure is high, and inhale when pressure is low.

This post was last edited by ylb913 on 2015-7-5 05:23. Simply put, changes in temperature cause changes in the temperature and pressure of the gas phase inside the storage tank, while changes in the liquid level lead to changes in the gas space within the tank, which in turn results in changes in the pressure inside the tank. This can lead to excessive pressure that may cause the tank to rupture, or to negative pressure that can damage the tank. The breather valve ensures that the pressure inside the tank remains within normal positive and negative ranges, thereby preventing damage to the tank.

The reasons for pressure changes are likely related to the loading and unloading of material into and out of the tank. Additionally, the frequent thunderstorms these days cause the pressure in the tank to drop rapidly; without a proper air supply system, reliance must be placed on breather valves.

Simply put, it’s the function of exhalation and inhalation. When pressure is high, exhaust occurs; when pressure is low, air is supplied. The difference from a direct breathing port is that breathing occurs only when there is a certain pressure difference between the inside and outside of the tank (for example, 200 mm of water column), whereas with a direct breathing port, breathing takes place as long as there is a pressure difference

A breathing valve is similar to a one-way check valve; it allows air to be exhaled outward but not inhaled inward. When the pressure inside the system increases, gas is released outward through the breathing valve, thereby maintaining a constant pressure in the system. It is generally used on storage tanks at normal or low pressure.

The quality of people in the advisory team is truly different! ! !