FIELD: pipeline fitting, namely in wells of oil and gas condensate deposits for automatic closing of high pressure pipeline at emergency changing of pressure in it.
SUBSTANCE: in housing of cut-off apparatus rotary locking organ is arranged. Said locking organ is in the form of two mutually overlapping rotary dampers. One damper is discharging one and it has opening; other damper is dead one and it closes opening of discharging damper. Apparatus also includes fixing member holding locking organ in open state and sensing member. The last is in the form of spring-loaded rod. Rod of sensing member is joined with fixing member that holds in open state discharging rotary damper with opening. Dead rotary damper has stop. Stop of dead damper is in the form of plate having opening for passing fixing member with stops and it is arranged over discharging rotary damper with possibility of engaging with stops of fixing member after operation of discharging rotary damper.
EFFECT: simplified design, enhanced operational reliability of apparatus at closing high pressure pipeline for high-speed transportation of fluid.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CUTOFF DEVICE | 2003 |
|
RU2249138C2 |
| CUTOFF DEVICE | 1992 |
|
RU2103579C1 |
| VALVING DEVICE | 2005 |
|
RU2300688C1 |
| INTERCEPTING AUTOMATIC VALVE | 2008 |
|
RU2374541C1 |
| ISOLATION STOP AND CONTROL VALVE | 2008 |
|
RU2386880C1 |
| STOP AND CONTROL DEVICE FOR AUTOMATIC ISOLATION OF GAS WELL PIPELINE | 2008 |
|
RU2386882C1 |
| 0 |
|
SU362961A1 | |
| STOP AND CONTROL DEVICE | 2008 |
|
RU2386879C2 |
| SHUT-OFF AND REGULATING APPARATUS | 2002 |
|
RU2238466C2 |
| SHUT-OFF ADJUSTING DEVICE | 0 |
|
SU1643836A1 |
