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What is petroleum (oil)? - One of the main objects of geological exploration is a kind of vicious and dark brown liquid called "industrial blood." There is oil storage in parts of the upper crust.
Petroleum rubber seal,sually referred to as “end face sealing” , is a device to avoid the outflow of harmful fluids. In terms of working principle, the sealing effect is improved by the action of the pressure and the magnetic force of the fluid, so that the end surface perpendicular to the rotating shaft is kept tight and relatively sliding, thereby improving the sealing quality.
The petroleum rubber seal used in the petroleum field is the same as the ordinary petroleum rubber sealing ring. Under the action of the spring force and the medium pressure, the non-rotating ring closely clings to the rotating ring and then rotates. During the process, the two sides slide relative to each other, and thus the radial flow of the medium is prevented. The friction pair formed at this time is the main seal of the petroleum rubber seal.
The downward push and the medium pressure of the spring compensate for the damage of the friction pair caused by friction, thereby maintaining the close contact between the sealing end faces. The petroleum rubber seal can also compensate for the gap created between the ring and the shaft to avoid liquid leakage from the gap.
A non-compensating ring auxiliary seal is used between the non-compensating ring and the gland, which prevents the medium from flowing out from that place. In practical applications, the petroleum auxiliary seal and petroleum rubber seal have no relative movements. They belong to static seals. Also, when selecting a seal ring, an "O" ring is usually selected, or a gasket will be selected for processing.
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