FIELD: gas supply technology.
SUBSTANCE: group of inventions is related to technology for supplying gas for displacing a gas-air mixture during repair work on a linear part of a main gas pipeline. The aim of the invention is to develop a method for displacing a gas-air mixture through gas extraction risers from a section of a main gas pipeline and to develop a device for its implementation. The technical result is achieved by the fact that the purge of the repaired section of the main gas pipeline is carried out by a portable removable pipeline with a gate and connecting flanges by regulating the gas supply with this gate.
EFFECT: elimination of failure of pipeline fittings of the bypass line of the valve units of the linear part of the main gas pipeline due to the prevention of gas throttling by pipeline fittings and the prevention of unscheduled replacement of the bypass line ball valves associated with premature wear of its sealing elements and units.
2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| BLOWDOWN METHOD OF GAS PIPELINE SECTION AND DEVICE FOR ITS IMPLEMENTATION | 2018 |
|
RU2741178C2 |
| METHOD FOR DISPLACEMENT OF TEMPORARY SEALING DEVICES DURING OPERATION OF MAIN GAS PIPELINES IN MULTI-THREAD DESIGN | 2019 |
|
RU2728112C1 |
| BYPASS AND PULSE PIPINGS OF LINE VALVES INCLUDED IN VALVE ASSEMBLIES OF MULTI-LINE MAIN GAS LINES LAID IN ONE PROCESS CORRIDOR | 2021 |
|
RU2777810C1 |
| METHOD FOR DISPLACEMENT OF GAS-AIR MIXTURE FROM INNER CAVITY OF REPAIRED SECTIONS OF GAS PIPELINE | 2020 |
|
RU2758407C1 |
| SAFETY CONTROL IN REPAIR AT MAIN PIPELINES AND SYSTEM TO THIS END | 2011 |
|
RU2484361C1 |
| METHOD FOR REPAIRMENT OF MAIN GAS PIPELINE AND MOVABLE INSTALLATION FOR ITS IMPLEMENTATION | 2020 |
|
RU2785882C2 |
| INTRATUBAL DEVICE START-UP CONTROL SYSTEM | 2022 |
|
RU2791800C1 |
| METHOD OF DRYING PROCESS PIPELINES OF COMPRESSOR YARD | 2023 |
|
RU2820376C1 |
| METHOD FOR PERFORMING REPAIR WORK AT THE FACILITIES OF THE GAS TRANSMISSION SYSTEM WITHOUT INTERRUPTING THE GAS SUPPLY TO THE CONSUMER | 2023 |
|
RU2805111C1 |
| DRYING PIPELINE INSIDE | 2014 |
|
RU2562873C1 |
