FR2653527A1 - Pipeline with an internal wax coating - Google Patents

Pipeline with an internal wax coating Download PDF

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Publication number
FR2653527A1
FR2653527A1 FR8913962A FR8913962A FR2653527A1 FR 2653527 A1 FR2653527 A1 FR 2653527A1 FR 8913962 A FR8913962 A FR 8913962A FR 8913962 A FR8913962 A FR 8913962A FR 2653527 A1 FR2653527 A1 FR 2653527A1
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France
Prior art keywords
liquid
pipeline
liquids
paraffin
wall
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Granted
Application number
FR8913962A
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French (fr)
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FR2653527B1 (en
Inventor
Pomero Claude Alix
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Individual
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Individual
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Priority to FR8913962A priority Critical patent/FR2653527B1/en
Publication of FR2653527A1 publication Critical patent/FR2653527A1/en
Application granted granted Critical
Publication of FR2653527B1 publication Critical patent/FR2653527B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
    • B05D7/222—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of pipes

Abstract

The invention relates to a method for improving the transportation of liquids or gases in pipelines by coating the internal walls with a wax. The waxy coating reduces the friction of the liquid on the wall, improves sealing and reduces possible reactions of a chemical nature between the liquid and the wall.

Description

La présente invention a pour objet un revêtement intérieur de canalisations de transport de liquides ou de gaz. On transporte généralement des liquides dans des canalisations en acier avec revêtement intérieur au ciment ou au zinc (galvanisation), en ciment, en matériau thermoplastique, en fonte, en -terre cuite, etc ... Le transport du liquide engendre un frottement sur les parois, appelé dans certains cas perte de charge ; ce frottement conduit à augmenter la pente des canalisations utilisant la gravité pour le transport des liquides, ou à augmenter la puissance des pompes de mise en pression des liquides ou des gaz pour les transports utilisant ce moyen de déplacement.The present invention relates to an interior coating of pipelines for transporting liquids or gases. Liquids are generally transported in steel pipes with an internal coating of cement or zinc (galvanization), cement, thermoplastic material, cast iron, baked earth, etc. The transport of the liquid generates friction on the walls, called in some cases pressure drop; this friction leads to increasing the slope of the pipes using gravity for the transport of liquids, or to increasing the power of the pressurizing pumps of liquids or gases for transport using this means of displacement.

Il est quelquefois difficile d'augmenter la pente des canalisations gravitaires, si le terrain a un profil en long qui ne s'y prête pas.It is sometimes difficult to increase the slope of gravity pipes, if the ground has a longitudinal profile which does not lend itself to it.

D'autre part, les matériaux constituant ces canalisations peuvent être plus ou moins perméables aux liquides ou aux gaz, ce qui peut avoir un double effet de perte de liquide ou de gaz et de risque de trouble ou de pollution du milieu environnant la canalisation.On the other hand, the materials constituting these pipes can be more or less permeable to liquids or gases, which can have a double effect of loss of liquid or gas and risk of clouding or pollution of the environment surrounding the pipe.

Enfin, les liquides ou les gaz transportés peuvent avoIr une réaction de nature chimique avec le matériau constituant la canalisation, ce qui peut transformer les propriétés du liquide comme par exemple le goût, pour les liquides alimentaires il est donc intéressant aussi bien techniquement qu'économiquement de revêtir l'intérieur des canalisations d'un produit diminuant le frottement du liquide sur les parois, et/ou diminuant leur perm#abilite-, et/ou diminuant le risque de réaction chimique entre 1- iiqi# i de ou le gaz et la paroi T s préceinte invention consiste à revêtir les parois internes des canalisations par un alcane solide ayant un nombre d'atomes de carbone supérieur à 15 appelé "paraffine" ou "cire" - En effet, les paraffines diminuent dans la plupart des cas le frottement des liquides sur les parois, en créant un film lisse de matière ; de plus, ces produits étant assez hydrophobes, ils diminuent la mouillabilité de la paroi et augmentent son imperméabilité, même pour les gaz.Par ailleurs, les paraffines étant de nature inerte, ils diminuent considérablement les risques d'oxydation ou de réaction de nature chimique des liquides ou des gaz au contact du matériau de canalisation. La mise en oeuvre de ces alcanes paraffiniques sur les parois peut se faire en utilisant une émulsion paraffinée, ou bien le produit préalablement chauffé, fondu et répandu ou bien par frottement de la paraffine sur les parois.Finally, the liquids or gases transported can have a chemical reaction with the material constituting the pipeline, which can transform the properties of the liquid such as for example the taste, for food liquids it is therefore interesting both technically and economically to coat the inside of the pipes with a product reducing the friction of the liquid on the walls, and / or reducing their perm #ability-, and / or reducing the risk of chemical reaction between 1- iiqi # i of or the gas and the pre-invented wall T s consists in coating the internal walls of the pipes with a solid alkane having a number of carbon atoms greater than 15 called "paraffin" or "wax" - Indeed, paraffins decrease in most cases the rubbing liquids on the walls, creating a smooth film of material; moreover, these products being fairly hydrophobic, they reduce the wettability of the wall and increase its impermeability, even for gases. Furthermore, the paraffins being of an inert nature, they considerably reduce the risks of oxidation or of a chemical reaction. liquids or gases in contact with the pipe material. The implementation of these paraffinic alkanes on the walls can be done using a paraffin emulsion, or the product previously heated, melted and spread or by rubbing the paraffin on the walls.

Un exemple de réalisation consiste en une canalisation en béton, dont on recouvre la face au contact du liquide d'émulsion de paraffine. Après rupture de l'émulsion, le film continu deparaffine diminue le frottement du liquide, et évite en grande partie la réaction chimique éventuelle du liquide avec la paroi en béton. An exemplary embodiment consists of a concrete pipe, the face of which is covered in contact with the paraffin emulsion liquid. After rupture of the emulsion, the continuous film of paraffin decreases the friction of the liquid, and largely avoids the possible chemical reaction of the liquid with the concrete wall.

L'application de l'invention est possible dans tous les domaines d'activité utilisant la canalisation d'un liquide pour son transport, comme des canalisations d'eaux usées d'habitation, d'eaux pluviales, d'eau potable, d'eau descendant d'un barrage pour la fabrication d'électricité, d'eau d'irrigation, d'huile de graissage ou alimentaire, de vin, de gaz, de pétrole, de lait et plus généralement tout liquide à transporter de manière industrielle The application of the invention is possible in all fields of activity using the pipeline of a liquid for its transport, such as pipelines for residential wastewater, rainwater, drinking water, water descending from a dam for the production of electricity, irrigation water, lubricating or food oil, wine, gas, petroleum, milk and more generally any liquid to be transported industrially

Claims (1)

REVENDICATIONS 10) Canalisation de transport de produit liquide ou gazeux, caractérisée en ce qu'on recouvre la paroi de la canalisation au contact du liquide ou du gaz par un alcane solide ayant un nombre d'atomes de carbone supérieur à 15, appelé aussi "paraffine" ou cire 20) Canalisation de transport de produit liquide ou gazeux, conforme à la revendication 1 caractérisée en ce que l'alcane paraffimique est mise en oeuvre sous forme d'émulsion, à froid. CLAIMS 10) Pipeline for transporting a liquid or gaseous product, characterized in that the wall of the pipeline is covered in contact with the liquid or gas with a solid alkane having a number of carbon atoms greater than 15, also called " paraffin "or wax 20) Pipe for transporting a liquid or gaseous product, according to claim 1, characterized in that the paraffinic alkane is used in the form of an emulsion, when cold. 3O) Canalisation de transport de produit liquide ou gazeux, conforme à la revendication 1, caractérisée en ce que l'alcane paraffimique est mise en oeuvre en faisant fondre la paraffine préalablement, puis en répendant le liquide ainsi obtenu sur les parois de la canalisation.  3O) pipeline for transporting a liquid or gaseous product, according to claim 1, characterized in that the paraffinic alkane is used by melting the paraffin beforehand, then by spreading the liquid thus obtained on the walls of the pipeline.
FR8913962A 1989-10-23 1989-10-23 PIPE WITH INTERNAL PARAFFIN COATING. Expired - Lifetime FR2653527B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8913962A FR2653527B1 (en) 1989-10-23 1989-10-23 PIPE WITH INTERNAL PARAFFIN COATING.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8913962A FR2653527B1 (en) 1989-10-23 1989-10-23 PIPE WITH INTERNAL PARAFFIN COATING.

Publications (2)

Publication Number Publication Date
FR2653527A1 true FR2653527A1 (en) 1991-04-26
FR2653527B1 FR2653527B1 (en) 1992-03-13

Family

ID=9386750

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8913962A Expired - Lifetime FR2653527B1 (en) 1989-10-23 1989-10-23 PIPE WITH INTERNAL PARAFFIN COATING.

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FR (1) FR2653527B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866691A1 (en) 2004-02-19 2005-08-26 Claude Alix Georges Pomero Drinking water distribution pipe, has outer shell made up of lead, inner covering coated with paraffin, and mixture of alkanes distributed by blowing, aspiration or gravity on inner walls of pipe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1718039A (en) * 1925-02-05 1929-06-18 Draper Mfg Co Method of protectively coating containers
DE568071C (en) * 1930-06-20 1933-01-13 Mannesmann Ag Process for lining the inner surfaces of metal pipes
US2138741A (en) * 1936-04-07 1938-11-29 Continental Can Co Method of coating sheet metal can with wax
DE1904690B2 (en) * 1969-01-31 1978-02-23 Fa. CA. Neubecker, 6050 Offenbach METHOD AND DEVICE FOR LINING BARRELS, IN PARTICULAR BEER BARRELS, WITH A PROTECTIVE LAYER OF LIQUID WAX
GB1506381A (en) * 1975-05-20 1978-04-05 Wombwell M Method of treating plastics-walled pipes in a beer dispensing installation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1718039A (en) * 1925-02-05 1929-06-18 Draper Mfg Co Method of protectively coating containers
DE568071C (en) * 1930-06-20 1933-01-13 Mannesmann Ag Process for lining the inner surfaces of metal pipes
US2138741A (en) * 1936-04-07 1938-11-29 Continental Can Co Method of coating sheet metal can with wax
DE1904690B2 (en) * 1969-01-31 1978-02-23 Fa. CA. Neubecker, 6050 Offenbach METHOD AND DEVICE FOR LINING BARRELS, IN PARTICULAR BEER BARRELS, WITH A PROTECTIVE LAYER OF LIQUID WAX
GB1506381A (en) * 1975-05-20 1978-04-05 Wombwell M Method of treating plastics-walled pipes in a beer dispensing installation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866691A1 (en) 2004-02-19 2005-08-26 Claude Alix Georges Pomero Drinking water distribution pipe, has outer shell made up of lead, inner covering coated with paraffin, and mixture of alkanes distributed by blowing, aspiration or gravity on inner walls of pipe
WO2005089959A1 (en) * 2004-02-19 2005-09-29 Claude Alix Georges Pomero Potable water pipeline consisting of an external lead envelop and internal paraffin coating

Also Published As

Publication number Publication date
FR2653527B1 (en) 1992-03-13

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