FR2683637A1 - Device intended to facilitate the detection of corrosion in a fluid installation - Google Patents
Device intended to facilitate the detection of corrosion in a fluid installation Download PDFInfo
- Publication number
- FR2683637A1 FR2683637A1 FR9113900A FR9113900A FR2683637A1 FR 2683637 A1 FR2683637 A1 FR 2683637A1 FR 9113900 A FR9113900 A FR 9113900A FR 9113900 A FR9113900 A FR 9113900A FR 2683637 A1 FR2683637 A1 FR 2683637A1
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- FR
- France
- Prior art keywords
- installation
- corrosion
- control element
- fluid
- facilitate
- 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.)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
Description
La présente invention est relative à un dispositif destiné à faciliter la détection de la corrosion dans une installation à fluide. The present invention relates to a device intended to facilitate the detection of corrosion in a fluid installation.
Une telle installation, à circuit de fluide ouvert ou fermé, véhicule un fluide susceptible de provoquer des conditions de corrosion de certains éléments au moins de cette installation, par exemple des tubes, des tuyaux, des raccords, des échangeurs, des pompes, des vannes, des corps de chauffe, etc. Such an installation, with an open or closed fluid circuit, conveys a fluid capable of causing corrosion conditions of at least certain elements of this installation, for example tubes, pipes, fittings, exchangers, pumps, valves , heaters, etc.
Dans ce genre d'installations, par exemple de chauffage central, de fourniture d'eau chaude sanitaire ou de refroidissement, le phénomène inévitable de corrosion dans le temps est d'autant plus gênant qu'il est difficilement décelable du fait qu'il affecte les parties internes de l'installation et que, lorsque la corrosion a atteint un certain degré, elle crée des dommages considérables à l'installation, en entraînant l'arrêt de celle-ci et le remplacement des pièces corrodées. In this type of installation, for example central heating, hot water supply or cooling, the inevitable phenomenon of corrosion over time is all the more troublesome since it is difficult to detect because it affects the internal parts of the installation and that, when the corrosion has reached a certain degree, it creates considerable damage to the installation, causing it to stop and the replacement of corroded parts.
L'invention a pour but de remédier à cet inconvénient en fournissant un dispositif simple, fiable et économique permettant de détecter facilement la corrosion avant que celle-ci atteigne un niveau dangereux. The object of the invention is to remedy this drawback by providing a simple, reliable and economical device making it possible to easily detect corrosion before it reaches a dangerous level.
A cet effet, le dispositif selon l'invention est caractérisé en ce qu'il est constitué par un élément témoin métallique placé dans l'installation, au contact du fluide, et présentant une plus grande sensibilité à la corrosion que les pièces actives de l'installation. To this end, the device according to the invention is characterized in that it is constituted by a metallic control element placed in the installation, in contact with the fluid, and having a greater sensitivity to corrosion than the active parts of the 'installation.
Grâce à un tel dispositif, on peut surveiller ltévolu- tion de la corrosion présente sur la surface intérieure des pièces actives de l'installation par une simple observation visuelle ou une simple pesée opérée régulièrement sur lvélément témoin pour en constater le degré de corrosion, ce degré étant supérieur au degré de corrosion des pièces actives de l'installation, ce qui permet une intervention efficace et à temps sur le fluide véhiculé par l'installation lorsque la corrosion constatée sur l'élément témoin atteint un niveau prédéterminé. Thanks to such a device, it is possible to monitor the evolution of the corrosion present on the interior surface of the active parts of the installation by a simple visual observation or a simple weighing carried out regularly on the control element in order to note the degree of corrosion, degree being greater than the degree of corrosion of the active parts of the installation, which allows an effective and timely intervention on the fluid conveyed by the installation when the corrosion observed on the control element reaches a predetermined level.
On comprendra bien l'invention à la lecture de la description qui va suivre d'un exemple de réalisation du dispositif selon l'invention et en référence au dessin annexé dont la figure unique est une coupe transversale schématique de cet exemple de réalisation. The invention will be clearly understood on reading the following description of an embodiment of the device according to the invention and with reference to the appended drawing, the single figure of which is a schematic cross-section of this exemplary embodiment.
On a schématiquement représenté sur la figure unique un élément témoin métallique 1 qui est placé dans une installation, au contact du fluide en mouvement schématisé par la flèche
A. Cet élément témoin métallique 1 présente une plus grande sensibilité à la corrosion que les pièces actives de l'installation, ces pièces pouvant être celles qui ont été énumérées précédemment.There is schematically shown in the single figure a metallic control element 1 which is placed in an installation, in contact with the moving fluid shown diagrammatically by the arrow
A. This metallic control element 1 has a greater sensitivity to corrosion than the active parts of the installation, these parts possibly being those which have been listed above.
Dans une installation où le fluide véhiculé est de eau, par exemple une installation de chauffage central, de production d'eau chaude sanitaire ou de refroidissement, les pièces actives de l'installation sont en acier et, dans ce cas, l'élément témoin 1 est en acier doux. In an installation where the fluid conveyed is water, for example a central heating installation, hot water production or cooling, the active parts of the installation are made of steel and, in this case, the control element 1 is made of mild steel.
L'élément témoin 1 est monté sur la face intérieure d'un support 2, ce support pouvant lui-même être une pièce active de l'installation au contact du fluide A. L'élément témoin 1 est monté sur son support 2 de toute façon appropriée, par exemple en étant suspendu ou, comme représenté, en étant monté à plat par tout moyen mécanique approprié. The control element 1 is mounted on the inside of a support 2, this support itself being an active part of the installation in contact with the fluid A. The control element 1 is mounted on its support 2 in any case appropriately, for example by being suspended or, as shown, by being mounted flat by any suitable mechanical means.
Pour permettre une inspection régulière aisée de l'élément témoin 1, le support 2 est mobile ou amovible, en étant facilement accessible depuis l'extérieur ; par exemple, le support 2 peut être un couvercle de filtre. To allow easy regular inspection of the control element 1, the support 2 is mobile or removable, being easily accessible from the outside; for example, the support 2 can be a filter cover.
Du fait que l'élément témoin 1 se corrode facilement, il est monté sur son support 2 de façon à pouvoir être facilement enlevé et remplacé par un élément neuf. Because the control element 1 is easily corroded, it is mounted on its support 2 so that it can be easily removed and replaced by a new element.
Dans l'exemple représenté, l'élément témoin 1 est simplement constitué par une plaquette métallique rectangulaire de quelques centimètres de côté et d'une épaisseur de l'ordre de 2 mm. In the example shown, the control element 1 is simply constituted by a rectangular metal plate a few centimeters in side and a thickness of the order of 2 mm.
En variante du caractère amovible du support 2, on peut prévoir une observation visuelle de l'élément témoin 1 par transparence d'une paroi d'un élément de l'installation, ce qui évite l'ouverture de l'installation et son arrêt. As a variant of the removable nature of the support 2, it is possible to provide a visual observation of the control element 1 by transparency of a wall of an element of the installation, which avoids the opening of the installation and its stopping.
Par l'observation visuelle ou par pesée de l'élément témoin 1 on peut détecter une corrosion qui se manifeste, de fa çon habituelle, par une action d'oxydation, bactérienne ou acide, cette corrosion de ltélément témoin 1 étant toujours supérieure à celle des parties actives de l'installation, ce qui permet une intervention sur le fluide ou un nettoyage de 1 'in- stallation avant que la corrosion de cette dernière devienne trop gênante. By visual observation or by weighing the control element 1, corrosion can be detected, which manifests itself, in the usual way, by an oxidative action, bacterial or acid, this corrosion of the control element 1 being always greater than that active parts of the installation, which allows intervention on the fluid or cleaning of the installation before corrosion of the latter becomes too troublesome.
Bien entendu, l'invention n'est pas limitée au mode de réalisation, non plus qutau mode d'application, qui ont été décrits ; on pourrait au contraire concevoir diverses variantes, sans sortir pour autant de son cadre. Of course, the invention is not limited to the embodiment, nor to the mode of application, which have been described; on the contrary, we could conceive of various variants, without departing from its framework.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9113900A FR2683637A1 (en) | 1991-11-12 | 1991-11-12 | Device intended to facilitate the detection of corrosion in a fluid installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9113900A FR2683637A1 (en) | 1991-11-12 | 1991-11-12 | Device intended to facilitate the detection of corrosion in a fluid installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2683637A1 true FR2683637A1 (en) | 1993-05-14 |
Family
ID=9418828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9113900A Pending FR2683637A1 (en) | 1991-11-12 | 1991-11-12 | Device intended to facilitate the detection of corrosion in a fluid installation |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2683637A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1134576A2 (en) * | 2000-03-16 | 2001-09-19 | Ricoh Company, Ltd. | Product with feature for checking the deterioration of material properties |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB250576A (en) * | 1925-04-09 | 1927-03-10 | Ig Farbenindustrie Ag | Manufacture of dyestuffs of the triarylmethane series |
| US3621810A (en) * | 1970-11-05 | 1971-11-23 | Caterpillar Tractor Co | Corrosion detector |
| CA1076894A (en) * | 1979-01-11 | 1980-05-06 | Louis M. Michaud | Corrosive fluid detector |
| DE3437494A1 (en) * | 1984-10-12 | 1986-05-22 | Kuka Schweissanlagen & Roboter | Bimetallic fuse for corrosion indication |
| EP0316206A1 (en) * | 1987-10-09 | 1989-05-17 | Lyonnaise Des Eaux - Dumez | Method and device for detecting modifications in the state of a surface and for controlling the same |
| WO1991016614A1 (en) * | 1990-04-19 | 1991-10-31 | Long Manufacturing Ltd. | Coolant corrosiveness indicator |
-
1991
- 1991-11-12 FR FR9113900A patent/FR2683637A1/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB250576A (en) * | 1925-04-09 | 1927-03-10 | Ig Farbenindustrie Ag | Manufacture of dyestuffs of the triarylmethane series |
| US3621810A (en) * | 1970-11-05 | 1971-11-23 | Caterpillar Tractor Co | Corrosion detector |
| CA1076894A (en) * | 1979-01-11 | 1980-05-06 | Louis M. Michaud | Corrosive fluid detector |
| DE3437494A1 (en) * | 1984-10-12 | 1986-05-22 | Kuka Schweissanlagen & Roboter | Bimetallic fuse for corrosion indication |
| EP0316206A1 (en) * | 1987-10-09 | 1989-05-17 | Lyonnaise Des Eaux - Dumez | Method and device for detecting modifications in the state of a surface and for controlling the same |
| WO1991016614A1 (en) * | 1990-04-19 | 1991-10-31 | Long Manufacturing Ltd. | Coolant corrosiveness indicator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1134576A2 (en) * | 2000-03-16 | 2001-09-19 | Ricoh Company, Ltd. | Product with feature for checking the deterioration of material properties |
| EP1134576A3 (en) * | 2000-03-16 | 2001-10-17 | Ricoh Company, Ltd. | Product with feature for checking the deterioration of material properties |
| US6644236B2 (en) * | 2000-03-16 | 2003-11-11 | Ricoh Company, Ltd. | Deterioration indicator and a product having the same |
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