IN-PIPE CLEANING METHOD
PROBLEM TO BE SOLVED: To provide an in-pipe cleaning method which is capable of cleaning the inside of a pipe without the occurrence of thickness reduction and without inducing environment pollution even in post treatment. SOLUTION: The in-pipe cleaning method for an existing pipeline using relative...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
27.08.2002
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide an in-pipe cleaning method which is capable of cleaning the inside of a pipe without the occurrence of thickness reduction and without inducing environment pollution even in post treatment. SOLUTION: The in-pipe cleaning method for an existing pipeline using relatively soft material consists in using sodium bicarbonate of a specific grain size as a blasting agent, conveying the sodium bicarbonate by the air flow generated by the prescribed pressure difference induced in the pipe and bringing the sodium bicarbonate under the conveyance at a high speed into contact with deposits, thereby rubbing off the deposits and removing the deposits. |
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Bibliography: | Application Number: JP20010037086 |