EP0782906B1 - Procédé pour le lestage de tubes, notamment de tubes destinés à être immergés, ainsi que l'installation pour sa mise en oeuvre et les tubes obtenus - Google Patents
Procédé pour le lestage de tubes, notamment de tubes destinés à être immergés, ainsi que l'installation pour sa mise en oeuvre et les tubes obtenus Download PDFInfo
- Publication number
- EP0782906B1 EP0782906B1 EP96400340A EP96400340A EP0782906B1 EP 0782906 B1 EP0782906 B1 EP 0782906B1 EP 96400340 A EP96400340 A EP 96400340A EP 96400340 A EP96400340 A EP 96400340A EP 0782906 B1 EP0782906 B1 EP 0782906B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubes
- coating
- ballast
- station
- carriage
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0038—Machines or methods for applying the material to surfaces to form a permanent layer thereon lining the outer wall of hollow objects, e.g. pipes
Definitions
- Submerged fluid transport lines consist of steel tubes, ballasted with a cover made of concrete, which are butt welded when they are removed at the bottom of the water by specialized vessels.
- the tubes are introduced successively and the coating is applied continuously up to a certain length, for example half, of the next tube.
- the installation is then stopped and the coating is cut at the jointing plane of the two tubes adjacent, after which the installation is restarted.
- the object of the present invention is in particular to remedy these drawbacks and to this end concerns a process for ballasting tubes, as defined by claim 1.
- the combined feed and rotation movements are obtained tubes located at the level of the recovery deposit station ballast, by at least one endless belt driven in rotation and which is transversely inclined with respect to the direction of advance of the tubes.
- two transversely inclined endless belts are provided relative to the direction of advance of the tubes, the movable section driven in synchronism with the movement tubes in advance being located between these two mats without end.
- the invention is shown by way of example not limiting on the single drawing attached which is a view schematic top view of an installation for ballasting tubes.
- the present invention therefore aims to rapid production of weighted tubes of constant quality, not having, in particular, a ballast coating of irregular thickness.
- the invention also allows the implementation a highly reliable installation compared to installations current.
- This installation includes a drop-off station 1 a ballast coating.
- This station includes a hopper 2 supplied with concrete and which deposits via of a spraying device 3 a layer of concrete on the tubes 4 simultaneously with the winding of a textile reinforcement or metallic 5, for example of the wire mesh type.
- This frame can also be made a film, in particular of plastic material, wound helically gradually on concrete as its deposition, so that this reinforcement is used to hold the concrete on the tube especially during its solidification.
- This concrete reinforcement plastic reinforcement film may also be provided in addition to an internal metal frame or textile, for example in the form of mesh.
- the tubes brought by trucks 6 are deposited by a trolley on supports 8 in order to bring them by rotation, on a transfer line 9.
- This transfer line moves these tubes successively inside an inspection tunnel 10 to verify that they are free from defects.
- the tubes coming from this inspection tunnel 10 are then brought to a second transverse conveyor 11 which separates the defect-free tubes 4, which are deflected on the right, from the defective tubes 4 1 which are deflected on the left.
- the tubes 4 are then deposited on a line of transfer 12 composed of a succession of shaped pebbles diabolos of which at least a part is driving. This line transfer ensures the advance of the tubes 4 to the station 1 for removing the ballast cover.
- the tubes 4 are driven in rotation so that this rotational movement combined with the movement of advance, allows the removal of the concrete layer by nozzle 3 simultaneously with the helical winding of a mesh 5.
- the installation comprises two parallel zones for presenting a grid which are used successively to produce a continuous helical winding of this grid over the entire length of the tube.
- These meshes come from a stock of 5 1 mesh rolls.
- the diabolo rollers 12 drive the tubes 4 by moving them at a speed slightly higher than in advance of the height tubes from station 1 so that these tubes 4 are introduced end to end bout in this post 1.
- the training in rotation of the tubes at the height of station 1 is obtained by two supports 13 and 14 arranged one behind the other, immediately downstream of the concrete projection area.
- Media each have an endless motor-oriented conveyor belt transversely to the direction of advancement tubes 4, while being slightly inclined relative to this direction so as to communicate with the tubes 4 located at height of station 1 a rotational movement combined with a forward movement in the direction of arrow F.
- the feed and rotation speeds combined tubes generated by the support mats 13 and 14 will be determined according to the width of the mesh 5 and as a function of the flow rate of the sprayed concrete.
- a carriage 15 is disposed laterally between the two mats of the supports 13 and 14. This carriage is provided at least two circular saws or an abrasive disc intended cutting the concrete covering and its mesh continuously arranged on the tubes. This cup is performed substantially at the level of the jointing plane of two tubes, one of which (the end tube) is completely covered with its ballast cover, while the other (the penultimate tube) is partially covered with its overlap and is still, in part, at inside station 1.
- This carriage 15 is movable in the direction of arrow F parallel to the displacement of the tubes 4. This movement between supports 13 and 14 is done at a speed synchronous to that of the advance of the tubes 4 in the station 1 so that it can be carried out using saws or discs of this carriage 15, the straight section of the covering, substantially at the joint plane of the two tubes and simultaneously with their advance and rotation movements combined.
- the advance speed of the carriage 15 will be one linear function of the speed of rotation of the conveyor belts support 13 or 14.
- the installation comprises, after the supports 13 and 14, two carriages 16 and 17 which are movable on rails 18 and which include endless belts 16 1 to 17 1 . These carriages 16, 17 are driven in free rotation and are oriented transversely to the arrow F.
- These endless carpets are of adjustable height on carriages 16 and 17 so that they can be brought together of the carriage 14 while they are in the low position and for be able to be placed under the weighted tube which has just been separated, by the cutting means of the carriage 15, of the tube in ballasting.
- the belts 16 1 and 17 1 are lifted and the carriages 16 and 17 are moved on the rail 18 then brought on a lateral conveyor 19 which moves the weighted tubes 4 2 towards an evacuation station 20 where they can either be brought to storage media 21, or be directly taken care of by a trolley 22 for their removal on trucks 23.
- the ballasting of the tubes is carried out continuously on portions of tube 4 which advance end to end, the two end tubes, which are connected to each other by this ballast, being then separated without interrupting the continuous advance and rotation movement of these two tubes.
- the cutting tool provided on the carriage 15 may consist of at least one pair of circular saws or abrasion discs arranged in parallel at a short distance one from the other, in order to cut the coating, i.e. concrete and wire mesh, a short distance apart and on the other side of the jointing plan of the two underlying tubes.
- the tubes being the same length from 10 to 15 meters, the two saws can be separated of 50 cm to cut the coating to 25 cm apart and on the other side of the jointing line of the tubes.
- the tubes ballasted will thus be stripped of this ballast at their ends over a length of 25 cm so as to allow the following their butt welding during the realization and removing the pipe at the bottom of the water.
- the cut cover section at the ends of the two tubes will be evacuated by a transporter endless belt 24, from which the concrete can be recovered by a carpet 25 while the metallic waste of the mesh will be removed in 26.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Description
Claims (6)
- Procédé pour le lestage de tubes, destinés à être immergés, suivant lequel on dépose sur les tubes un revêtement en béton simultanément à l'enroulement d'une armature, les tubes étant à cet effet entraínés en rotation simultanément à leur mouvement d'avance à hauteur d'un poste de dépose du revêtement de lestage, procédé selon lequel on fait avancer bout à bout les tubes à lester dans le poste de dépose du revêtement de lestage, on entraíne en rotation le tube qui, dans son mouvement d'avance, se situe à hauteur du poste de dépose du revêtement de lestage afin de déposer le revêtement de béton simultanément à l'enroulement hélicoïdal de l'armature, on met en oeuvre, en aval du poste de dépose du revêtement de lestage, un outil de sciage (15) disposé sur un chariot mobile parallèlement au déplacement axial du tube lesté (4) et on effectue la coupe du revêtement de lestage sensiblement à hauteur du plan de jointoiement des deux tubes reliés par ce recouvrement de lestage dont l'un est entièrement recouvert et dont l'autre est en cours de recouvrement, en déplaçant l'outil de coupe en synchronisme avec le mouvement d'avance de ces deux tubes entraínés en rotation,
caractérisé en ce qu'on prévoit sur l'outil (15) de coupe du revêtement, au moins deux scies circulaires légèrement écartées l'une de l'autre et on fait avancer le chariot supportant cet outil de coupe en synchronisme avec les tubes afin de couper le revêtement de lestage de part et d'autre de la ligne de jointoiement des tubes. - Procédé conforme à la revendication 1, caractérisé en ce qu'on obtient les mouvements d'avance et de rotation combinés des tubes si-tués à hauteur du poste de dépose de recouvrement de lestage (1) par au moins un tapis sans fin (13, 14) entraíné en rotation et transversalement incliné par rapport à la direction d'avance (F) des tubes (4).
- Procédé conforme à la revendication 2, caractérisé en ce qu'on prévoit deux tapis sans fin (13, 14) transversalement inclinés par rapport à la direction d'avance des tubes, l'outil de coupe mobile entraíné en synchronisme avec le mouvement d'avance des tubes étant situé entre ces deux tapis sans fin.
- Procédé conforme à l'une quelconque des revendications précédentes, caractérisé en ce qu'on obtient le mouvement d'avance bout à bout des tubes (4) en amont du poste (1) de dépose du recouvrement de lestage par des rouleaux diabolos (12) dont au moins certains sont moteurs et entraínés à une vitesse de rotation périphérique légèrement supérieure à la vitesse d'avance des tubes à hauteur du poste (1) de dépose du recouvrement de lestage.
- Procéde conforme à l'une quelconque des revendications de 1 à 4, caractérisé en ce qu'on dispose au moins un chariot (16, 17) à tapis sans fin orienté transversalement à la direction d'avance (F) des tubes après le ou les chariots (13, 14) à tapis sans fin transversalement inclinés par rapport à la direction d'avance (F) des tubes, ce chariot étant mobile parallèlement à la direction d'avance des tubes et son tapis sans fin (161, 171) étant d'une hauteur réglable.
- Procédé conforme à la revendication 5, caractérisé en ce qu'on prévoit entre les tapis moteurs (161, 171) transversalement inclinés des moyens (24) pour l'évacuation des déchets de coupe du revêtement de lestage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9600128 | 1996-01-08 | ||
FR9600128A FR2743327B1 (fr) | 1996-01-08 | 1996-01-08 | Procede pour le lestage de tubes, notamment de tubes destines a etre immerges, ainsi que l'installation pour sa mise en oeuvre et les tubes obtenus |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0782906A1 EP0782906A1 (fr) | 1997-07-09 |
EP0782906B1 true EP0782906B1 (fr) | 2003-04-09 |
Family
ID=9487946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96400340A Expired - Lifetime EP0782906B1 (fr) | 1996-01-08 | 1996-02-19 | Procédé pour le lestage de tubes, notamment de tubes destinés à être immergés, ainsi que l'installation pour sa mise en oeuvre et les tubes obtenus |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0782906B1 (fr) |
DE (1) | DE69627287T2 (fr) |
DK (1) | DK0782906T3 (fr) |
FR (1) | FR2743327B1 (fr) |
ZA (1) | ZA965479B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110883926A (zh) * | 2019-12-06 | 2020-03-17 | 海油发展珠海管道工程有限公司 | 连续式海管配重混凝土涂敷及养护剂在线喷涂设备及方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1711942A (en) * | 1927-06-09 | 1929-05-07 | M D Knowlton Co | Mandrel for tube-cutting machines |
DE1099488B (de) * | 1958-04-05 | 1961-02-16 | Alexander Kueckens | Einrichtung zum Abtrennen ohne weitere Bearbeitung miteinander verschweissbarer Stuecke von einem sich drehenden Rohr |
US3041700A (en) * | 1960-04-25 | 1962-07-03 | Carl K Smith | Apparatus for coating pipes |
US3740291A (en) * | 1971-01-20 | 1973-06-19 | J Mallard | Method and apparatus for applying a coating to a tubular member |
JPS54150446A (en) * | 1978-05-19 | 1979-11-26 | Koshuha Netsuren Kk | Continuous coating layer formation of unbonded pc steel rod and apparatus therefor |
US4362187A (en) * | 1980-08-05 | 1982-12-07 | Manville Service Corporation | Spirally-formed thermoplastic tube |
DD216413B1 (de) * | 1983-07-06 | 1987-02-11 | Arno Petau | Vorrichtung zum schneiden von plastischen massen, insbesondere keramischen massestraengen |
GB9323725D0 (en) * | 1993-11-17 | 1994-01-05 | Bredero Price Services | Pipe coating apparatus |
-
1996
- 1996-01-08 FR FR9600128A patent/FR2743327B1/fr not_active Expired - Fee Related
- 1996-02-19 DE DE69627287T patent/DE69627287T2/de not_active Expired - Lifetime
- 1996-02-19 EP EP96400340A patent/EP0782906B1/fr not_active Expired - Lifetime
- 1996-02-19 DK DK96400340T patent/DK0782906T3/da active
- 1996-06-27 ZA ZA965479A patent/ZA965479B/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110883926A (zh) * | 2019-12-06 | 2020-03-17 | 海油发展珠海管道工程有限公司 | 连续式海管配重混凝土涂敷及养护剂在线喷涂设备及方法 |
Also Published As
Publication number | Publication date |
---|---|
FR2743327A1 (fr) | 1997-07-11 |
ZA965479B (en) | 1997-01-27 |
DK0782906T3 (da) | 2003-08-04 |
DE69627287T2 (de) | 2004-03-04 |
DE69627287D1 (de) | 2003-05-15 |
EP0782906A1 (fr) | 1997-07-09 |
FR2743327B1 (fr) | 1999-01-08 |
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