Outstanding advantages of pneumatic flexible
polished rod stuffing box:
It can adapt to the
tiny swing of polished rod and reduce eccentric
wear
It can reduce the
wear of polished rod and packing,
It can improve
utilization of packing materials
It can increase
packing replacement cycle by times
It can improve the
service life of packing and polished rods
It can reduce the
maintenance of polished rods and stuffing
box
Working principle:
Type C inflatable rubber ring, filled with
high-pressure gas, continuously and evenly pressurize the
packing;
The spiral structure of the packing can shrink
under the action of gas pressure to ensure that the packing and the
polished rod are closely attached at any time, improve the
utilization of the packing, and increase the replacement
cycle;
Low friction, reduce the wear of polished rod and
packing, and increase the service life of packing and polished
rod;
The rubber ring is filled with fluid gas, which
can adapt to the slight swing of the polished rod, reduce partial
wear, and increase the service life of the packing and polished
rod.
When the polished rod moves up and down, the
packing box realizes a two-level or three-level flexible dynamic
seal to the polished rod;
When the packing box needs maintenance or
treatment of the well head, temporarily shut down the plugging
device;
The eccentric follower provides 13mm horizontal
displacement compensation and plus or minus 15° vertical swing
compensation for the polished rod;
When the polished rod breaks down, the blowout
preventer is automatically closed to prevent blowout and oil
leakage.
