Liquid leakage detector line

Details Liquid leakage detector line Liquid leakage detector line

1987-09-30

1990-04-24

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

174 11R, 324541, G01M 318

Patent

active

049189778

ABSTRACT:
The present invention relates to a liquid leakage detector line for detecting the leakage, if occurs, of a liquid such as sulfuric acid or strong alkali from a transportion pipe line or a storage tank. The liquid leakage detector line comprises: a pair of wiry electrodes each including a conductor covered with an insulator layer made of macromolecular material including an ester bond, the wiry electrodes being disposed substantially in parallel with each other; and a liquid-absorbent material covering these wiry electrodes. The liquid-absorbent material may be a braided body layer made of liquid-absorbent yarn which is disposed outside of the pair of wiry electrodes, or may be a braided body layer similar to the first-mentioned braided body layer which is disposed at the outer periphery of each of the wiry electrodes. If a sulfuric acid or alkali liquid leaks, the liquid-absorbent material covering the wiry electrodes absorbs such leakage liquid. The liquid thus absorbed causes the insulator layers to dissolve to short-circuit the conductors. The insulation resistance between the conductors is measured from one end of the liquid leakage detector line. The decrease in insulation resistance is detected to detect liquid leakage.

REFERENCES:
patent: 3981181 (1976-09-01), Ochiai
patent: 4029889 (1977-06-01), Mizuochi
patent: 4206632 (1980-06-01), Suzuki
patent: 4487057 (1984-12-01), Lutz
patent: 4570477 (1986-02-01), Sugibuchi
patent: 4645868 (1987-02-01), Suzuki

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