DE1284757B - Leak detection device for double-walled storage containers with an electrically conductive control fluid in the wall space - Google Patents

Leak detection device for double-walled storage containers with an electrically conductive control fluid in the wall space

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Publication number
DE1284757B
DE1284757B DE1966H0059252 DEH0059252A DE1284757B DE 1284757 B DE1284757 B DE 1284757B DE 1966H0059252 DE1966H0059252 DE 1966H0059252 DE H0059252 A DEH0059252 A DE H0059252A DE 1284757 B DE1284757 B DE 1284757B
Authority
DE
Germany
Prior art keywords
control liquid
container
double
storage containers
electrically conductive
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
DE1966H0059252
Other languages
German (de)
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.)
ROBERT DIPL ING
Original Assignee
ROBERT DIPL ING
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 ROBERT DIPL ING filed Critical ROBERT DIPL ING
Priority to DE1966H0059252 priority Critical patent/DE1284757B/en
Publication of DE1284757B publication Critical patent/DE1284757B/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating 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
    • G01M3/32Investigating 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 containers, e.g. radiators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00Uses or applications of pigs or moles
    • F16L2101/30Inspecting, measuring or testing

Description

Die Erfindung betrifft eine Leckanzeige-Einrichtung für doppelwandige Lagerbehälter mit elektrisch nichtleitendem Inhalt und mit einer elektrisch leitenden Kontrollflüssigkeit im Wandzwischenraum sowie mit einem Kontrollflüssigkeits-Standbehälter, der zur Alarmauslösung bei Abfall des Kontrollflüssigkeitsspiegels zwei in die Kontrollflüssigkeit eintauchende, in einem Widerstand-Meßkreis angeordnete Elektroden enthält. The invention relates to a leak detection device for double-walled Storage container with electrically non-conductive contents and with an electrically conductive one Control liquid in the space between the wall and with a control liquid container, the one for triggering an alarm when the control liquid level drops two into the control liquid contains immersed electrodes arranged in a resistance measuring circuit.

Bekannte Einrichtungen dieser Art lassen nur erkennen, ob aus dem Standbehälter Kontrollflüssigkeit ausgelaufen ist. Es bleibt bei der Alarmauslösung aber offen, ob ein Leck in der Innenwand oder in der Außenwand des Lagerbehälters vorliegt. Known institutions of this type can only be seen whether from the Control liquid has leaked. It remains with the alarm triggering but open whether there is a leak in the inner wall or in the outer wall of the storage container is present.

Eine solche Unterscheidung wird von den Aufsichtsbehörden bisher nicht verlangt. Diese fordern jedoch, daß bei Feststellung eines Lecks sofort die Installationsfirma zu verständigen ist. Dieser obliegt die zeitraubende Aufgabe, zu ermitteln, ob das Leck in der Innen- oder Außenwand entstanden ist. Aufgabe der Erfindung ist es, eine einfache Einrichtung zu schaffen, die eine selbstttäige Unterscheidung zwischen Lecks in der Innenwand und in der Außenwand eines Flüssigkeitsbehälters ermöglicht. Such a distinction is made by the supervisory authorities so far not required. However, these require that if a leak is detected, the The installation company is to be notified. This is responsible for the time-consuming task determine whether the leak is in the inner or outer wall. Task of The invention is to create a simple device that enables automatic differentiation between leaks in the inner wall and in the outer wall of a liquid container enables.

Diese Aufgabe wird, ausgehend von einer Einrichtung der eingangs definierten Art, erfindungsgemäß dadurch gelöst, daß eine der beiden Elektroden tiefer in die Kontrollflüssigkeit eintaucht und mit einer weiteren, in Bodennähe des Behälter-Innenraumes vorgesehenen Elektrode elektrisch so geschaltet ist, daß in den Behälter etwa eindringende Kontrollflüssigkeit einen weiteren Alarmstromkreis zwischen diesen Elektroden schließt. Die bei einem Leck aus der Kontrollflüssigkeit im Standbehälter zuerst austauchende, kürzere Elektrode löst den allgemeinen Leckalarm aus, während die längere Elektrode im Standbehälter zusammen mit der Behälter-Innenraum-Elektrode über die in den Innenraum eingedrungene Kontrollflüssigkeit einen zweiten Alarmkreis bildet, der besagt, daß ein »Innenwand-Leck« vorhanden ist. Bei einem Leck in der Innenwand ergeben sich also zwei Signale, bei Lecks in der Außenwand nur ein Alarmsignal. This task is based on a facility of the initially defined type, achieved according to the invention in that one of the two electrodes immersed deeper in the control liquid and with another one near the bottom the container interior provided electrode is electrically connected so that Any control liquid that might penetrate into the container creates a further alarm circuit closes between these electrodes. The one in the event of a leak from the control fluid The shorter electrode that emerges first in the free-standing container triggers the general leak alarm while the longer electrode is in the upright container together with the container interior electrode A second alarm circuit via the control liquid that has penetrated into the interior which indicates that there is an "inner wall leak". If there is a leak in the So there are two signals on the inner wall, and only one alarm signal in the event of leaks in the outer wall.

Es ist bekannt, im Innenraum von Lagerbehältern für elektrisch nichtleitende Flüssigkeiten Elektroden vorzusehen, die beim Eindringen von Wasser oder anderen leitfähigen Flüssigkeiten eine Alarmeinrichtung auslösen. Es handelt sich hierbei aber nicht um doppelwandige Lagerbehälter mit elektrisch leitender Kontrollflüssigkeit im Wandzwischenraum. It is known in the interior of storage containers for electrically non-conductive Liquids provide electrodes to prevent water or other penetration conductive liquids trigger an alarm device. It is here but not double-walled storage containers with electrically conductive control fluid in the space between the walls.

Die der Erfindung zugrunde liegende Aufgabe ist bei diesen bekannten Einrichtungen somit nicht gegeben.The object underlying the invention is known in these Facilities therefore not given.

In der Zeichnung ist eine erfindungsgemäße Leckanzeige-Einrichtung an einem doppelwandigen Flüssigkeitslagerbehälter beispielsweise dargestellt. Die Außenwand 1 und die Innenwand 2 des Lagerbehälters begrenzen einen mit elektrisch leitender Kontrollflüssigkeit 3 gefüllten Zwischenraum, der über ein Rohr 4 mit einem Standbehälter 5 verbunden ist, in den Elektroden 6 und 7 eintauchen, zwischen denen der elektrische Widerstand mittels Wechselstrom gemessen wird. Sinkt die Flüssigkeit infolge eines Lecks ab, dann steigt der Widerstand im Elektrodenkreis auf den Wert des Luftwiderstandes, und es erfolgt Alarm. Im Domdeckel 8 des Behälters ist isoliert eine weitere Elektrode 9 eingebaut, die bis kurz über den Behälterboden reicht und in der nichtleitenden Lagerflüssigkeit 10, z. B. Mineralöl, endet. Bei einem Leck in der Innenwand 2, z. B. an der Stelle 11, läuft Kontrollflüssigkeit 3 aus dem Standbehälter 5 aus. In the drawing is a leak indicator device according to the invention shown on a double-walled liquid storage container, for example. the Outer wall 1 and the inner wall 2 of the storage container delimit one with electrical conductive control fluid 3 filled interspace, which is via a pipe 4 with a standing container 5 is connected, immerse in the electrodes 6 and 7, between where the electrical resistance is measured by means of alternating current. The liquid sinks decreases as a result of a leak, then the resistance in the electrode circuit rises to the value the air resistance, and an alarm is given. In the dome cover 8 of the container is insulated another electrode 9 installed, which extends to just above the container bottom and in the non-conductive storage liquid 10, e.g. B. mineral oil ends. In the event of a leak in the inner wall 2, e.g. B. at point 11, control fluid 3 runs out of the Standing container 5 off.

Wenn die Elektrode 6 austaucht, erfolgt Leckalarm.If the electrode 6 emerges, a leak alarm is given.

Die absinkende Kontrollflüssigkeit tritt durch die Leckstelle 11 in den Innenraum des Behälters ein und steigt dort an, bis das Ende 12 der Elektrode 9 in den Bereich der eingedrungenen Kontrollflüssigkeit 13 gerät. Durch die Kontrollflüssigkeit wird jetzt der Stromkreis zwischen den Elektroden 7 und 12 geschlossen und Alarm gegeben. Dieser zeigt an, daß sich das Leck in der Innenwand befindet. Bei einem Leck in der Außenwand wird zwar durch die Elektroden 6,7 allgemeiner Leckalarm gegeben, der Alarm durch die Elektrode 9 unterbleibt aber.The sinking control liquid enters through the leak 11 in enters the interior of the container and rises there until the end 12 of the electrode 9 in the area of the penetrated control liquid 13. Through the control fluid the circuit between electrodes 7 and 12 is now closed and an alarm is triggered given. This indicates that the leak is in the inner wall. At a Leak in the outer wall is given by the electrodes 6,7 a general leak alarm, however, the alarm from electrode 9 does not occur.

Claims (1)

Patentanspruch: Leckanzeige-Einrichtung für doppelwandige Lagerbehälter mit elektrisch nichtleitendem Inhalt und mit einer elektrisch leitenden Kontrollflüssigkeit im Wandzwischenraum sowie mit einem Kontrollflüssigkeits-Standbehälter, der zur Al arm auslösung bei Abfall des Kontrollflüssigkeitsspiegels in die Kontrollflüssigkeit eintauchende, in einem Widerstand-Meßkreis angeordnete Elektroden enthält, d a d u r c h g ekennzeichnet, daß eine der beiden Elektroden (6, 7) tiefer in die Kontrollflüssigkeit (3) eintaucht und mit einer weiteren, in Bodennähe des Behälter-Innenraumes vorgesehenen Elektrode (12) elektrisch so geschaltet ist, daß in den Behälter (1) etwa eindringende Kontrollflüssigkeit (13) einen weiteren Alarmstromkreis zwischen diesen Elektroden (7 und 12) schließt. Claim: Leak indicator device for double-walled storage containers with electrically non-conductive content and with an electrically conductive control liquid in the space between the walls and with a stand-up control liquid container that is used for The alarm is triggered when the control liquid level drops into the control liquid contains immersed electrodes arranged in a resistance measuring circuit, d a d u r c h g e indicates that one of the two electrodes (6, 7) goes deeper into the control liquid (3) immersed and with another one provided near the bottom of the container interior Electrode (12) is connected electrically so that approximately penetrating into the container (1) Control liquid (13) another alarm circuit between these electrodes (7 and 12) closes.
DE1966H0059252 1966-04-29 1966-04-29 Leak detection device for double-walled storage containers with an electrically conductive control fluid in the wall space Pending DE1284757B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1966H0059252 DE1284757B (en) 1966-04-29 1966-04-29 Leak detection device for double-walled storage containers with an electrically conductive control fluid in the wall space

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1966H0059252 DE1284757B (en) 1966-04-29 1966-04-29 Leak detection device for double-walled storage containers with an electrically conductive control fluid in the wall space

Publications (1)

Publication Number Publication Date
DE1284757B true DE1284757B (en) 1968-12-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE1966H0059252 Pending DE1284757B (en) 1966-04-29 1966-04-29 Leak detection device for double-walled storage containers with an electrically conductive control fluid in the wall space

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305068A (en) * 1980-02-07 1981-12-08 Klein William T Detector system
US4971225A (en) * 1986-09-19 1990-11-20 Bravo Sergio M Gasoline collector pit box and submersible unit box
US5100024A (en) * 1986-09-19 1992-03-31 Bravo Sergio M Gasoline collector pit box and submersible unit box

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US336078A (en) * 1886-02-16 Charles e
FR706637A (en) * 1929-12-03 1931-06-27 Ver Stahlwerke Ag Process for recognizing the appearance or presence of leaks in a metal tank or vessel containing a bath of a liquid electrical conductor
DE1835792U (en) * 1961-05-08 1961-07-27 Sager Adolf Fa OVERFILL PROTECTION FOR HEATING OIL TANKS.
DE1853428U (en) * 1961-12-11 1962-06-14 Mannesmann Ag LEAK INDICATOR FOR A DOUBLE-WALLED HEATING OIL TANK.
GB1020581A (en) * 1961-08-29 1966-02-23 Nicolai Walter Improvements in or relating to storage vessels for liquids

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US336078A (en) * 1886-02-16 Charles e
FR706637A (en) * 1929-12-03 1931-06-27 Ver Stahlwerke Ag Process for recognizing the appearance or presence of leaks in a metal tank or vessel containing a bath of a liquid electrical conductor
DE1835792U (en) * 1961-05-08 1961-07-27 Sager Adolf Fa OVERFILL PROTECTION FOR HEATING OIL TANKS.
GB1020581A (en) * 1961-08-29 1966-02-23 Nicolai Walter Improvements in or relating to storage vessels for liquids
DE1853428U (en) * 1961-12-11 1962-06-14 Mannesmann Ag LEAK INDICATOR FOR A DOUBLE-WALLED HEATING OIL TANK.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305068A (en) * 1980-02-07 1981-12-08 Klein William T Detector system
US4971225A (en) * 1986-09-19 1990-11-20 Bravo Sergio M Gasoline collector pit box and submersible unit box
US5100024A (en) * 1986-09-19 1992-03-31 Bravo Sergio M Gasoline collector pit box and submersible unit box

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