EP2718033A1 - Procede de nettoyage dynamique des canalisations d'eau d'un vehicule et dispositif permettant de le mettre en oeuvre - Google Patents
Procede de nettoyage dynamique des canalisations d'eau d'un vehicule et dispositif permettant de le mettre en oeuvreInfo
- Publication number
- EP2718033A1 EP2718033A1 EP12731532.3A EP12731532A EP2718033A1 EP 2718033 A1 EP2718033 A1 EP 2718033A1 EP 12731532 A EP12731532 A EP 12731532A EP 2718033 A1 EP2718033 A1 EP 2718033A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- volume
- water
- shock wave
- vehicle
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
Definitions
- the present invention relates to the field of maintenance of the pipes forming the water network of vehicles and in particular adaptations to perform the cleaning of said pipes in the best conditions.
- filtration means for example carbon filtration cartridge, ion exchange, etc.
- the document DE 102009009938 describes a method of inserting gas into water flowing in the water supply lines of an aircraft in order to create turbulence in the circulating flow, turbulences likely to avoid the depositing biofilms and / or detaching said deposit for evacuation purposes. Turbulence created by such a method is not always sufficient to perform a complete cleaning.
- an intermediate state of the fluid flowing in the pipe namely a fluid formed of water and gas creating turbulence in the pipe to be cleaned, may not be sufficient. to detach some deposits.
- this shock wave is advantageously implemented by the method of the invention which consists of:
- shock wave To generate a shock wave, once the volume emptied, shock wave propagating downstream of said constriction through the mixture.
- shock created defines a constraint on deposits of biofilms, bacteria, scale which they can not resist thus ensuring their detachment and evacuation.
- This shock wave is achieved by the establishment of a sudden discontinuity in the nature of the fluid passing through the pipe.
- the method consists in creating a fluid by mixing a liquid with pressurized gas and propagating said shock wave in said fluid.
- the creation of this mixture will not only support the shock wave but also create a turbulent phase conducive to the removal of any impurity in the pipe.
- the method of the invention thus combines the advantages of a gas and liquid intermediate phase with those of a shock wave optimizing the stresses on the deposits to be removed and ensuring their detachment for evacuation purposes.
- the method of the invention thus makes it possible to associate the creation of a shock wave with an intermediate phase gas / liquid that can create turbulence in the pipe to be cleaned.
- the acceleration is obtained by pressurizing the unoccupied volume and maintaining the pressure despite the escape of the liquid by the throttling.
- the gas and liquid mixture is obtained when the volume is almost emptied and where the liquid at its highest acceleration (due to the maintenance of the pressure) carries gas in its displacement and the shock wave is generated due to the sudden absence of liquid to move due to the total emptying and accelerated volume.
- the method consists in heating the water filling the volume thus participating in the cleaning.
- the vehicle is an aircraft.
- the invention also relates to the device for implementing the method described above.
- said constriction is created by the difference in diameter between the volume and the pipe in which the shock wave propagates.
- said volume is that of a water tank of the vehicle.
- said volume is that of an independent reservoir coming from the outside to connect to the pipe network of the vehicle.
- This tank can be associated within the same module to different functional subassemblies participating in the cleaning process.
- said independent reservoir is included in a mobile cleaning module uniting on the same platform, the following subsets: water tank that will constitute the volume partially filled here with water,
- thermometer for controlling the temperature of the water
- This single module can thus, by connecting to the pipe network, implement the method of the invention. It also makes it possible to implement another characteristic of the method of the invention which consists in heating the water filling the volume of the tank so that the water ensures, by its temperature, a treatment function.
- said liquid is water and in particular water already present in the storage tank of the vehicle.
- the implementation of the method of the invention consists in controlling the filling and the emptying of a tank of the vehicle as well as its pressurization in order to carry out the different steps necessary to obtain a phase intermediate fluid and the propagation of the shock wave through said fluid.
- FIG. 1 is a schematic drawing of a drinking water supply circuit of an aircraft on which the method of the invention is applied from a reservoir integrated in said aircraft;
- FIG. 1 illustrates the scattering of the shock wave in the circuit of Figure 1;
- Figure 3 is a schematic drawing of a drinking water supply circuit of an aircraft on which the method of the invention is applied from a tank independent of the aircraft;
- FIG. 4 illustrates the diffusion of the shock wave in the circuit of FIG.
- the method of the invention applies to the drinking water supply network of an aircraft referenced A in which it comprises a water reservoir 100 as well as a plurality of pipes 200 forming said water supply network for distributing the water to the taps available to users such as the tap 300 illustrated.
- the method of the invention for removing deposits is applied to the portion of a pipe 210 communicating said reservoir 100 to said valve 300.
- the reservoir 100 has a much larger diameter than the pipe 210 to be cleaned.
- This difference in diameter creates a constriction at the junction point P between said duct 210 and said reservoir 100.
- the tank 100 further comprises in its original version or for implementing the method of the invention:
- a gas inlet valve 130 allowing the contents of the tank 100 to be pressurized
- a gas outlet valve 140 making it possible to regulate said pressure.
- valve 300 is closed as well as the valves 120 and 130,
- valve 140 is open and water and / or a disinfectant liquid is injected from the outside into the tank 100 via the valve 110,
- valve 140 is closed and the valve 120 giving access to the pipe 210 is open.
- a high intensity shock wave 0 accompanied by a high degree of turbulence is then generated downstream of the point P and propagates inside the pipe 210 to be cleaned.
- the velocity at point P passes less than 10 meters per second at a speed greater than 440 meters per second, which is the velocity of gas at the point P during the generation of the discontinuity.
- FIGS. 3 and 4 illustrate the implementation of the same method by a slightly different device in that it consists of a tank 400 independent of the aircraft A coming to connect to the pipe network 200 and associated with functional subassemblies to ensure the different phases of the process.
- the latter is based on a large difference in diameter between that of the tank 400 and that of the pipe 220 connection with the pipe 210 to be cleaned.
- a constriction at the point P 'of connection between the pipe 220 and the tank 400 makes it possible to create the desired discontinuity.
- the arrival of the liquid at the bottom of tank 400 creates the creative discontinuity of the desired shock wave 0 'propagating through line 220 and then 210 in the gas, the air / liquid mixture and in the liquid.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1154902A FR2975928B1 (fr) | 2011-06-06 | 2011-06-06 | Procede de nettoyage dynamique des canalisations d'eau d'un vehicule et dispositif permettant de le mettre en oeuvre |
| PCT/FR2012/051253 WO2012168645A1 (fr) | 2011-06-06 | 2012-06-05 | Procede de nettoyage dynamique des canalisations d'eau d'un vehicule et dispositif permettant de le mettre en oeuvre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2718033A1 true EP2718033A1 (fr) | 2014-04-16 |
| EP2718033B1 EP2718033B1 (fr) | 2016-08-10 |
Family
ID=46456853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12731532.3A Active EP2718033B1 (fr) | 2011-06-06 | 2012-06-05 | Procede de nettoyage dynamique des canalisations d'eau d'un vehicule et dispositif permettant de le mettre en oeuvre |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9694397B2 (fr) |
| EP (1) | EP2718033B1 (fr) |
| CA (1) | CA2875598C (fr) |
| ES (1) | ES2599662T3 (fr) |
| FR (1) | FR2975928B1 (fr) |
| WO (1) | WO2012168645A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020201643A1 (fr) | 2019-04-03 | 2020-10-08 | Prodose | Dispositif mobile de traitement de l'eau |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3011754B1 (fr) * | 2013-10-10 | 2017-04-28 | Prodose | Procede de traitement a des fins de nettoyage des canalisations d'un reseau d'eau potable d'un aeronef |
| CN106733952B (zh) * | 2016-12-27 | 2019-02-05 | 沪东中华造船(集团)有限公司 | 用于集滚船滚装设备液压管路坞内投油清洗的工艺方法 |
| DE102018208611A1 (de) | 2018-05-30 | 2019-12-05 | Airbus Operations Gmbh | Verfahren zur Desinfektion eines Wassersystems eines Luftfahrzeugs |
| DE102018208602A1 (de) | 2018-05-30 | 2019-12-05 | Airbus Operations Gmbh | Verfahren zur Desinfektion eines Wassersystems eines Luftfahrzeugs |
| FR3140001A1 (fr) | 2022-09-23 | 2024-03-29 | Suez International | procédé de nettoyage d’une canalisation polluée |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5127961A (en) * | 1990-12-14 | 1992-07-07 | Naylor Industrial Services, Inc. | Method and apparatus for forming a frothed fluid slug for pipe cleaning |
| US5178684A (en) * | 1991-06-05 | 1993-01-12 | Hutchins Sr Danny T | Method for cleaning water pipe |
| US5530988A (en) * | 1992-06-19 | 1996-07-02 | Mcquillan; Raymond | Device for clearing pipes or other lines with pressurized gas |
| US5915395A (en) | 1996-05-29 | 1999-06-29 | St Environmental Services | Method for the cleaning of water mains |
| US6564816B2 (en) * | 2001-09-20 | 2003-05-20 | Asia Union Co., Ltd. | Water hammer cleaning machine |
| US20040118437A1 (en) * | 2002-12-23 | 2004-06-24 | Nguyen Nick Ngoc | Method of detecting flow in endoscope channels |
| US7421757B1 (en) * | 2004-08-17 | 2008-09-09 | Aimm Technologies, Inc. | Pump valve mechanism |
| EP1911541A1 (fr) * | 2006-10-12 | 2008-04-16 | Linde Aktiengesellschaft | Méthode et dispositif pour nettoyer des torches de soudage utilisant un flot de gaz de courte durée et à haute vitesse |
| JP2009022513A (ja) * | 2007-07-19 | 2009-02-05 | Fujifilm Corp | 内視鏡のすすぎ方法 |
| DE102009009938B4 (de) * | 2009-02-20 | 2013-10-17 | Hammann Gmbh | Vorrichtung und Verfahren zur Reinigung von Trinkwasserleitungen oder Abwasserleitungen in Fahrzeugen, insbesondere Flugzeugen, Schienenfahrzeugen oder Wasserfahrzeugen |
-
2011
- 2011-06-06 FR FR1154902A patent/FR2975928B1/fr not_active Expired - Fee Related
-
2012
- 2012-06-05 CA CA2875598A patent/CA2875598C/fr active Active
- 2012-06-05 ES ES12731532.3T patent/ES2599662T3/es active Active
- 2012-06-05 US US14/123,767 patent/US9694397B2/en active Active
- 2012-06-05 WO PCT/FR2012/051253 patent/WO2012168645A1/fr not_active Ceased
- 2012-06-05 EP EP12731532.3A patent/EP2718033B1/fr active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012168645A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020201643A1 (fr) | 2019-04-03 | 2020-10-08 | Prodose | Dispositif mobile de traitement de l'eau |
Also Published As
| Publication number | Publication date |
|---|---|
| US9694397B2 (en) | 2017-07-04 |
| US20140230845A1 (en) | 2014-08-21 |
| CA2875598A1 (fr) | 2012-12-13 |
| CA2875598C (fr) | 2019-04-16 |
| FR2975928B1 (fr) | 2014-12-19 |
| FR2975928A1 (fr) | 2012-12-07 |
| ES2599662T3 (es) | 2017-02-02 |
| EP2718033B1 (fr) | 2016-08-10 |
| WO2012168645A1 (fr) | 2012-12-13 |
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