ANTI-LEAK METHOD OF RESIDUAL OIL IN OIL FEED PIPE

Title:

ANTI-LEAK METHOD OF RESIDUAL OIL IN OIL FEED PIPE

Document Type and Number:

Japanese Patent JPH01141300

Kind Code:

A

Abstract:

PURPOSE:To simplify piping structure and to vent gas smoothly by controlling substituting amount of oil and inert gas in a rising pipe through injection pressure of inert gas and releasing inert gas injected into the rising pipe naturally. CONSTITUTION:When leakage of residual oil in an oil feed pipe extending between an oil tank 12 and an oil supply port 11 and provided with a pipe rising from the bottom is prevented, residual oil in the rising pipe 13 is substituted with inert gas pressure fed from a gas supply facility 20. When the inert gas injected into the rising pipe is substituted with oil fed from the oil tank 12, inert gas is released naturally through an exhaust pipe 17 coupled with the rising pipe 13.

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Inventors:

SAITO TOSHIKATSU

Application Number:

JP29781087A

Publication Date:

June 02, 1989

Filing Date:

November 27, 1987

Export Citation:

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Assignee:

TOA NENRYO KOGYO KK

International Classes:

F17D3/03; B67D9/00; (IPC1-7): F17D3/03

Domestic Patent References:

JPS5315215A	1978-02-10
JPS55119927U	1980-08-25
JPS5319453U	1978-02-18

Attorney, Agent or Firm:

Shuji Shiokawa

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