8-lecture Underground and surface gas pipelines

8-lecture

Underground and surface gas pipelines.

Plan:
1. Underground and surface gas pipelines
2.Transfer of gas pipelines from natural and artificial barriers.

Gas leaves the gas distribution points and enters the building through inlet pipes. When the external gas pipeline is passed from the ground, the valve is installed no higher than 1500 mm above the ground level and is enclosed in a suspended metal cabinet. When the pipes are passed through the outer wall of the building and inserted through the plinth, the valve is installed at such a height, but the metal cabinet is not installed.

Steel gas pipelines laid in the ground must be insulated to protect them from corrosion. Some sections of the pipe are connected by pressing.

It is not allowed to pass gas pipes and internal networks from residential rooms. Gas columns are assembled from stainless steel water-gas pipes by threading or welding.

Depending on the location of the apartments, gas columns are installed to supply gas to one or more apartments on the same floor. It is recommended to open gas pipelines in buildings. Gas pipes should not cross windows and doors. Gas pipes should be at least 2 m above the floor in places where people pass. It is not allowed to pass gas pipes through ventilation channels, shafts

When laying gas pipelines, it is necessary to ensure a certain distance from the building, underground and above-ground structures and trees. The distance between the underground gas pipeline and the building:

а)at least 2 m for low pressure gas pipes;
b)at least 4 m for medium pressure gas pipelines;
v) high pressure gas pipeline for at least 7 m;
g)at least 10 m for high pressure gas pipelines (0.61.2 MPa).

Ер ости газ қувури билан трамвай йўлигача бўлган масофа:

Бу масофалар газ қувурлари ётқизиш пайтида ва таъмирлаш ишлари бажариш пайтида транспорт ҳаракатини тўхтамасдан олиб боришга имкон беради. Дарахтлардан камида 1,5 м масофада ўтиш керак, чунки ундан яқин бўлса хандақ қазиганда дарахтнинг илдизи кесилиб кетади. Бундан ташқари, қувурдан газ чиқа бошласа дарахт илдизларига таъсир қилиб, уни қуритади. Электр кабели билан ер ости паст ва ўрта босим газ қувури орасидаги масофа камида 1 м бўлиши керак. Агарда юқори босим бўлса, камида 2 м бўлиши керак. Бу масофалар хандақ қазиганда ёки таъмирлаш ишлари олиб борилганда кабелни узиб юбормаслик учун керак.

The distance between the gas pipeline and the water network :

The distance between the gas pipeline and the sewer:

The distance from the outer wall of the hot water system channel to the gas pipe: