FIELD: sealing technology. SUBSTANCE: device includes vertical cylindrical reservoir provided with cooling jacket and required pipe unions where cylinder with piston is hermetically mounted. Piston divides cylinder into working gaseous medium chamber and sealing liquid chamber. Piston is made in form of floating bush which is free to move in cylinder axially and to turn about its axis. Bush is provided with circular groove on its outer lateral surface; this groove forms chamber together with wall of cylinder which is filled with water-repelling sealing medium, for example mineral oil, wax, paraffin. Upper end of bush is provided with two holes for communication with circular chamber. These holes are provided with tight plugs. Axial hole of bush is also provided with tight plug. EFFECT: enhanced reliability. 3 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DOUBLE END SEAL FOR REVOLVING SHAFTS | 1998 |
|
RU2137970C1 |
| 0 |
|
SU1669529A1 | |
| AUTOCLAVE | 1997 |
|
RU2131762C1 |
| ROTATING SHAFT MULTISTEP END SEAL | 0 |
|
SU777298A1 |
| UNION-BUTT JOINT FOR PIPE LINES | 1991 |
|
RU2014542C1 |
| ROTARY AUTOCLAVE | 2000 |
|
RU2237512C2 |
| MULTISTEP END SEAL OF ROTATING SHAFT IN APPARATUS OPERATING UNDER PRESSURE | 0 |
|
SU953316A1 |
| END SEAL OF A ROTARY SHAFT IN PRESSURIZED VESSELS | 0 |
|
SU702205A1 |
| CLOSED FILTER OF DUAL ACTION AT HIGH PRESSURES AND TEMPERATURES | 2009 |
|
RU2413568C2 |
| END SEAL OF A ROTARY SHAFT IN PRESSURIZED VESSELS | 0 |
|
SU702206A1 |
