First, the valve flap overview

The breathing valve baffle is mounted under the fire extinguisher and extends into a circular folding baffle having a diameter of 210 mm to 510 mm.

Second, the breathing valve baffle function

The pressure inside the tank drops rapidly. When a large amount of air is sucked into the tank, the air flow that is obstructed by the baffle cannot directly impact the surface of the oil, thereby reducing the continued evaporation of the oil. At the same time, due to the baffle of the baffle, the airflow is changed from the vertical direction to the horizontal direction. At this time, the inhaled fresh air is first mixed with the gas with a lower oil and gas concentration at the top of the tank to further reduce the concentration. When the oil tank stops to generate oil and is changed to the oil collection, the gas mixture with the lower oil and gas concentration at the top is exhaled, thereby achieving the purpose of reducing the loss. The panels are folded to facilitate loading or unloading from the can top engagement tube aperture. The shroud reduces the speed at which the airflow suddenly changes direction, maintaining a higher speed during subsequent movements, allowing the inhaled fresh air to evenly step into the upper space within the tank.

Third, the respiratory valve baffle installation

When installing the breathing valve baffle, first remove the fire damper and mechanical breathing valve from the joint pipe, fold the baffle so that it is parallel with the boom, and then put it into the tank from the joint pipe, and slightly shake the disc to unfold and Vertical to the boom. Finally, the fire alarm and mechanical breathing valve are installed and reset. The rubber asbestos gasket is inserted into the baffle to insulate the baffle from the tank. Under the high-speed flushing of the air or oil and gas mixture, the electric charge is accumulated to generate static electricity, so that when the ground potential reaches a certain value, spark discharge may occur. , the potential danger to production. For this purpose, a grounding wire is connected between the ring plate and the flange bolt to eliminate static electricity generated by the flushing of the baffle by the gas.

Fourth, the main size of the valve

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