Anti-nuclear radiation magnetic fluid sealing device

An anti-nuclear radiation magnetic fluid sealing device, comprising:

• a magnetically conductive rotating shaft, a magnetically conductive housing, a left snap ring, a left bearing, a left magnetically isolating ring, a left pole shoe, a magnetically isolating sleeve, an outer permanent magnet, an inner permanent magnet, a right pole shoe, a right magnetically isolating ring, a right bearing, a right snap ring, an end cover, an anti-radiation coating, an anti-magnetic coating, a magnetic fluid I, and a magnetic fluid II,
• wherein an inner side surface of the magnetically conductive housing is coated with the anti-radiation coating and an outer side surface of the magnetically conductive housing is coated with the anti-magnetic coating, forming the magnetically conductive housing having the anti-radiation coating and the anti-magnetic coating;
• an outer side surface and a right side surface of the end cover are coated with the anti-radiation coating, forming the end cover having the anti-radiation coating;
• an outer side surface and an inner side surface of the magnetically isolating sleeve are each provided with two annular protrusions, and the outer permanent magnet and the inner permanent magnet are respectively located on an outer side and an inner side of the annular protrusions that are on the outer side surface and the inner side surface of the magnetically isolating sleeve;
• a right side surface of the left pole shoe and a left side surface of the right pole shoe are each provided with an annular groove, and the magnetically isolating sleeve is mounted in the corresponding grooves;
• the left snap ring, the left bearing, the left magnetically isolating ring, the left pole shoe, the magnetically isolating sleeve, the outer permanent magnet, the inner permanent magnet, the magnetic fluid I, the magnetic fluid II, the right pole shoe, the right magnetically isolating ring, the right bearing, and the right snap ring are sequentially mounted on the magnetically conductive rotating shaft from left to right, which is then mounted into the magnetically conductive housing having the anti-radiation coating and the anti-magnetic coating;
• the end cover having the anti-radiation coating is connected to the magnetically conductive housing with the anti-radiation coating and the anti-magnetic coating by a screw.