JPS56111442A - Liquid leakage detector - Google Patents

Liquid leakage detector

Info

Publication number
JPS56111442A
JPS56111442A JP1300880A JP1300880A JPS56111442A JP S56111442 A JPS56111442 A JP S56111442A JP 1300880 A JP1300880 A JP 1300880A JP 1300880 A JP1300880 A JP 1300880A JP S56111442 A JPS56111442 A JP S56111442A
Authority
JP
Japan
Prior art keywords
cable
water
point
leakage
fed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1300880A
Other languages
Japanese (ja)
Inventor
Toshio Hara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP1300880A priority Critical patent/JPS56111442A/en
Publication of JPS56111442A publication Critical patent/JPS56111442A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2823—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pigs or moles traveling in the pipe

Abstract

PURPOSE:To detect the leakage of a liquid and its position accurately and easily by feeding a cable into a pipe and by detecting leaking water by a flow detector provided on the front end of the cable while measuring the length of the fed cable. CONSTITUTION:When cable 8 having flow detector 7 atop is fed into water pipe 1, cable 8 extends along water pipe 1. If water leaks at point A of water pipe 1, flow detector 7 detects nothing between point A and water sealing stopper 2, but generates a water flow signal at point A. Since this water flow signal is displayed on displayed device 10, the feed of cable 8 is stopped immediately and the length of cable 13 having been fed is measured by cable distance measurer 13, so that the point of the leakage can be detected. Simultaneously, the amount of the leakage water can be judged on the display of display device 10. Thus, the liquid leakage and its position can be detected accurately and easily.
JP1300880A 1980-02-07 1980-02-07 Liquid leakage detector Pending JPS56111442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1300880A JPS56111442A (en) 1980-02-07 1980-02-07 Liquid leakage detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1300880A JPS56111442A (en) 1980-02-07 1980-02-07 Liquid leakage detector

Publications (1)

Publication Number Publication Date
JPS56111442A true JPS56111442A (en) 1981-09-03

Family

ID=11821136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1300880A Pending JPS56111442A (en) 1980-02-07 1980-02-07 Liquid leakage detector

Country Status (1)

Country Link
JP (1) JPS56111442A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109835U (en) * 1982-01-18 1983-07-26 パイオニア株式会社 Optical disc player pick-up angle adjustment mechanism
CN103175663A (en) * 2013-03-06 2013-06-26 河海大学 Gate seal facility detection device based on worm gear type water flow sensor
CN107515083A (en) * 2017-08-04 2017-12-26 河海大学 A kind of water leakage of gate detection means

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109835U (en) * 1982-01-18 1983-07-26 パイオニア株式会社 Optical disc player pick-up angle adjustment mechanism
JPS634267Y2 (en) * 1982-01-18 1988-02-03
CN103175663A (en) * 2013-03-06 2013-06-26 河海大学 Gate seal facility detection device based on worm gear type water flow sensor
CN107515083A (en) * 2017-08-04 2017-12-26 河海大学 A kind of water leakage of gate detection means
CN107515083B (en) * 2017-08-04 2023-09-05 河海大学 Gate water leakage detection device

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