FIELD: machine building.
SUBSTANCE: here is disclosed pressure tight pipeline driving. The pipeline consists of working and protective pipes coaxially installed one in another forming annular space, of at least one bellows compensator, and of a sealing unit wherein the bellows compensator is arranged lengthwise in the structure of the internal pipe. The sealing unit is located between the protective pipe and working pipe in annular space. Annular space is filled with inhibitor.
EFFECT: simplification of design of pressure tight driving of pipeline and increased reliability of structure due to elimination of welded connection between working pipeline and case.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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|
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RU2557669C1 |
