WO1996022516A1 - System for sensing and locating water leaks - Google Patents

System for sensing and locating water leaks Download PDF

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Publication number
WO1996022516A1
WO1996022516A1 PCT/FR1995/000048 FR9500048W WO9622516A1 WO 1996022516 A1 WO1996022516 A1 WO 1996022516A1 FR 9500048 W FR9500048 W FR 9500048W WO 9622516 A1 WO9622516 A1 WO 9622516A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
leak
electrodes
sensing
detection
Prior art date
Application number
PCT/FR1995/000048
Other languages
French (fr)
Inventor
Gérard Jacquet
Joseph Ketz
Original Assignee
Jacquet Gerard
Joseph Ketz
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 Jacquet Gerard, Joseph Ketz filed Critical Jacquet Gerard
Priority to PCT/FR1995/000048 priority Critical patent/WO1996022516A1/en
Publication of WO1996022516A1 publication Critical patent/WO1996022516A1/en

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
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators

Definitions

  • the present invention relates to a system for detecting and locating leaks on the water distribution pipes in a building.
  • the proposed system makes it possible to immediately detect the inter-level area (or inter-floor) where the leak is located, whether it originates in a vertical column or in a horizontal pipe.
  • the system includes: - an insulating tape, adaptable to all pipe diameters whatever the material.
  • the principle is based on the fact that the horizontal conduits of the building circulate in PVC gutters Vertical bumpers also in PVC fixed every x meters in the gutters, (x being a function of the location pitch that one wishes to retain) will stop the water from the leak. Near each stopper, a siphon collecting the water from the leak is placed.
  • the siphon is equipped with a detector operating on the same principle already seen above, namely 2 electrodes which brought into contact by the passage of water cause a display on the central detection unit.
  • Figure 1 shows a block diagram of an embodiment of the device described above.
  • An insulating tape (1) surrounds a vertical column (2).
  • a collar (3) fitted with an inner sleeve (4) made of plastic (such as an expansion collar) encloses the insulating tape (1).
  • This sleeve (4) retains part of the flow (5) from the vanishing point (6) the other part flows through a slot (10) formed in the sleeve (4).
  • the water which collects in the groove (7) makes contact between the electrodes (8) and (9). These electrodes are fixed by the collar between the sleeve (4) and the insulating tape (1).
  • the electrodes are connected to a multi-strand cable (11) of the telecommunication cable type, itself connected to a central unit (12).
  • Figure 2 shows the simplified diagram of the power plant.
  • the wires of the cable (11) are connected to the detection diodes (13), each corresponding to a detection level. 15
  • the supply of the assembly is ensured from the 220 V network through a safety transformer (14) with separate winding (standard NFC 52-742) which lowers the voltage to 12 V. Protection is ensured by a fuse (15) calibrated at 1 or 2 Amps.
  • Figure 3 shows an alternative embodiment of the sleeve.
  • the sleeve, the insulating tape and the electrodes form a single piece.
  • Figure 4 shows the case of horizontal driving.
  • the pipe (13) circulates in a gutter (14) equipped with stops (15) every x meters. These stops are adapted to the passage of the pipes.
  • the water coming from a leak point (16) flows into the gutter (14) to a discharge outlet (17) located near the stopper (15).
  • the water 25 flowing in the siphon (18) establishes a contact by passing over 2 inner rings (19) acting as electrodes and ignites the L.E.D. corresponding on the panel of the central detection unit (12).
  • the role of the bumpers is to define the detection step by preventing water from reaching the next area.
  • This system according to the invention is particularly suitable for preventing the consequences of water damage in buildings.

Abstract

A system for sensing and locating water leaks in horizontal or vertical water distribution pipes in buildings. The system consists of a leak water retaining device (7) combined with two separate electrodes (8, 9). The water establishes contact between the two electrodes connected to a central unit (12). A warning light (13) powered by the current from the electrodes (8, 9) lights up so that the leak can be located immediately. Said system is particularly suitable for preventing water damage in buildings.

Description

SYSTEME DE DETECTION ET DE LOCALISATION DE FUITE D'EAU WATER LEAK DETECTION AND LOCATION SYSTEM
La présente invention concerne un système pour détecter et localiser les fuites sur les conduites de distribution d'eau dans un immeuble.The present invention relates to a system for detecting and locating leaks on the water distribution pipes in a building.
Actuellement, la présence d'une fuite dans un immeuble n'est pas aisément détectable ni localisable surtout dans le cas d'utilisation de gaines techniques qui ont pour effet de masquer l'origine de la fuite. H en résulte fréquemment des dégâts sur plusieurs étages et des recherches souvent longues et coûteuses.Currently, the presence of a leak in a building is not easily detectable or localizable especially in the case of the use of technical ducts which have the effect of masking the origin of the leak. This frequently results in damage on several floors and often long and costly searches.
A notre connaissance et après enquête, il n'existe pas de système de détection permettant de localiser le niveau précis de l'immeuble où se situe la fuite. Le système proposé permet de détecter immédiatement la zone inter niveau (ou inter étage) où se situe la fuite, que celle-ci trouve son origine dans une colonne verticale ou dans une conduite horizontale.To our knowledge and after investigation, there is no detection system to locate the precise level of the building where the leak is located. The proposed system makes it possible to immediately detect the inter-level area (or inter-floor) where the leak is located, whether it originates in a vertical column or in a horizontal pipe.
A) - Cas des colonnes verticalesA) - Case of vertical columns
Le système comporte: - un ruban isolant, adaptable à tous les diamètres de tuyau quelle qu' en soit la matière.The system includes: - an insulating tape, adaptable to all pipe diameters whatever the material.
- un collier du type collier de dilatation enserrant le ruban isolant.- a collar of the expansion collar type enclosing the insulating tape.
- deux électrodes inoxydables reliées à une centrale de détection à diodes lumineuses ( L.E.D.).- two stainless steel electrodes connected to a light-emitting diode detection center (L.E.D.).
Si une fuite apparaît sur la colonne, de l'eau s' écoule le long du tuyau, et sera alors arrêtée dans sa chute par le premier collier qu'elle rencontrera. La présence d'eau entre les 2 électrodes établira un contact qui allumera une diode lumineuse .correspondant au niveau où se situe la fuite, sur le tableau de la centrale de détection.If a leak appears on the column, water flows along the pipe, and will then be stopped in its fall by the first collar it will meet. The presence of water between the 2 electrodes will establish a contact which will light a light diode. Corresponding to the level where the leak is located, on the panel of the detection unit.
B) - Cas des conduites horizontalesB) - Case of horizontal pipes
Le principe repose sur le fait que les conduites horizontales de l'immeuble circulent dans des gouttières en P.V.C. Des butoirs verticaux également en P.V.C. fixés tous les x mètres dans les gouttières, (x étant fonction du pas de localisation que l' on souhaite retenir) stopperont l'eau issue de la fuite. A proximité de chaque butoir on pose un siphon récupérateur de l'eau de la fuite. Le siphon est équipé d'un détecteur fonctionnant sur le même principe déjà vu ci-dessus, à savoir 2 électrodes qui mises en contact par le passage de l'eau entraînent un affichage sur la centrale de détection.The principle is based on the fact that the horizontal conduits of the building circulate in PVC gutters Vertical bumpers also in PVC fixed every x meters in the gutters, (x being a function of the location pitch that one wishes to retain) will stop the water from the leak. Near each stopper, a siphon collecting the water from the leak is placed. The siphon is equipped with a detector operating on the same principle already seen above, namely 2 electrodes which brought into contact by the passage of water cause a display on the central detection unit.
Les dessins annexés illustrent un exemple de réalisation pratique. DESCRIPTION DES FIGURES.The accompanying drawings illustrate a practical embodiment example. DESCRIPTION OF THE FIGURES.
A - Cas de colonnes verticalesA - Case of vertical columns
La figure 1 présente un schéma de principe d'une réalisation du dispositif décrit ci -dessus.Figure 1 shows a block diagram of an embodiment of the device described above.
Un ruban isolant (1) entoure une colonne verticale (2).Un collier (3) équipé d'un manchon 5 intérieur (4) en plastique (genre collier de dilatation) enserre le ruban isolant (1). Ce manchon (4) retient une partie de l' écoulement (5) issu du point de fuite (6) l'autre partie s'écoule a travers une fente (10) pratiquée dans le manchon (4).An insulating tape (1) surrounds a vertical column (2). A collar (3) fitted with an inner sleeve (4) made of plastic (such as an expansion collar) encloses the insulating tape (1). This sleeve (4) retains part of the flow (5) from the vanishing point (6) the other part flows through a slot (10) formed in the sleeve (4).
L'eau qui s'accumule dans la gorge (7) réalise un contact entre les électrodes (8) et (9). Ces électrodes sont fixées par le collier entre le manchon (4) et le ruban isolant (1).The water which collects in the groove (7) makes contact between the electrodes (8) and (9). These electrodes are fixed by the collar between the sleeve (4) and the insulating tape (1).
10 Les électrodes sont connectées à un câble multibrins (11) de type câble de télécommunication, lui même raccordé à une centrale (12).The electrodes are connected to a multi-strand cable (11) of the telecommunication cable type, itself connected to a central unit (12).
La figure 2 représente le schéma simplifié de la centrale.Figure 2 shows the simplified diagram of the power plant.
Les fils du câble (11) sont reliés aux diodes de détection (13), chacune correspondant à un niveau de détection. 15 L' alimentation de l'ensemble est assurée à partir du réseau 220 V à travers un transformateur de sécurité (14) à enroulement séparés (norme N.F.C. 52-742) qui abaisse la tension à 12 V. La protection est assurée par un fusible (15) calibré à 1 ou 2 Ampères.The wires of the cable (11) are connected to the detection diodes (13), each corresponding to a detection level. 15 The supply of the assembly is ensured from the 220 V network through a safety transformer (14) with separate winding (standard NFC 52-742) which lowers the voltage to 12 V. Protection is ensured by a fuse (15) calibrated at 1 or 2 Amps.
La figure 3 présente une variante de réalisation du manchon. Dans ce cas manchon , ruban isolant et électrodes constituent une seule pièce.Figure 3 shows an alternative embodiment of the sleeve. In this case, the sleeve, the insulating tape and the electrodes form a single piece.
20 B. - Cas des conduites horizontales.20 B. - Case of horizontal pipes.
La figure 4 présente le cas de la conduite horizontale.Figure 4 shows the case of horizontal driving.
Le tuyau (13) circule dans une gouttière (14) équipée de butoirs (15) tous les x mètres.Ces butoirs sont adaptés au passage des tuyaux .L'eau issue d' un point de fuite (16) s' écoule dans la gouttière ( 14) vers une sortie d'évacuation ( 17) située à proximité du butoir (15). L'eau 25 en s'écoulant dans le siphon (18) établit un contact en passant sur 2 bagues intérieures (19) jouant le rôle d' électrodes et allume le L.E.D. correspondant sur le tableau de la centrale de détection (12).The pipe (13) circulates in a gutter (14) equipped with stops (15) every x meters. These stops are adapted to the passage of the pipes. The water coming from a leak point (16) flows into the gutter (14) to a discharge outlet (17) located near the stopper (15). The water 25 flowing in the siphon (18) establishes a contact by passing over 2 inner rings (19) acting as electrodes and ignites the L.E.D. corresponding on the panel of the central detection unit (12).
Le rôle des butoirs est de délimiter le pas de détection en empêchant l' eau d' atteindre la zone suivante.The role of the bumpers is to define the detection step by preventing water from reaching the next area.
30 Ce .système selon l'invention est particulièrement approprié à prévenir les conséquences des dégâts des eaux dans les immeubles. This system according to the invention is particularly suitable for preventing the consequences of water damage in buildings.

Claims

REVENDICATIONS
1 ) Dispositifs pour détecter et localiser un écoulement d' eau, venant d' une fuite, sur les conduites de distribution d'eau comprenant un système de rétention d'eau associé à une détection électrique caractérisé en ce que le dispositif comporte pour des conduites horizontales, une gouttière 5) (14) disposée sous les conduites et munie d'un butoir (15) délimitant le pas de détection, un siphon (18) équipé d'une détection électrique (19) raccordé à une sortie d'évacuation d'eau1) Devices for detecting and locating a flow of water, coming from a leak, on the water distribution pipes comprising a water retention system associated with an electrical detection characterized in that the device comprises for pipes horizontal, a gutter 5) (14) disposed under the conduits and provided with a stopper (15) delimiting the detection step, a siphon (18) equipped with an electrical detection (19) connected to a discharge outlet d 'water
(17) située à proximité du butoir (15) de la gouttière (14).(17) located near the stop (15) of the gutter (14).
2 ) Dispositif selon la revendication 1 caractérisé en ce que la détection électrique (19) est réalisée sous la forme de deux bagues indépendantes (19) jouant le rôle d'électrodes 10) placées à l'intérieur du siphon (18). 2) Device according to claim 1 characterized in that the electrical detection (19) is carried out in the form of two independent rings (19) playing the role of electrodes 10) placed inside the siphon (18).
PCT/FR1995/000048 1995-01-17 1995-01-17 System for sensing and locating water leaks WO1996022516A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/FR1995/000048 WO1996022516A1 (en) 1995-01-17 1995-01-17 System for sensing and locating water leaks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR1995/000048 WO1996022516A1 (en) 1995-01-17 1995-01-17 System for sensing and locating water leaks

Publications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2304221A (en) * 1995-08-04 1997-03-12 Petrotechnik Ltd Leak detection apparatus
US10565848B2 (en) 2015-03-26 2020-02-18 Dripdrone, Inc. Fluid leak detection methods, systems and apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1786843A (en) * 1929-10-07 1930-12-30 Hans N Hedeby Leak detector
GB2211238A (en) * 1987-10-22 1989-06-28 Sidney Ernest Haywood Flood prevention system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1786843A (en) * 1929-10-07 1930-12-30 Hans N Hedeby Leak detector
GB2211238A (en) * 1987-10-22 1989-06-28 Sidney Ernest Haywood Flood prevention system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2304221A (en) * 1995-08-04 1997-03-12 Petrotechnik Ltd Leak detection apparatus
GB2304221B (en) * 1995-08-04 1999-09-22 Petrotechnik Ltd Leak detection apparatus
US10565848B2 (en) 2015-03-26 2020-02-18 Dripdrone, Inc. Fluid leak detection methods, systems and apparatus

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