Flexible deep-well pipeline

FIELD: pipeline transport.

SUBSTANCE: flexible pipeline comprises several pulp lines provided with chambers with ball check valves and interconnected through piping diaphragms. The outer surface of the pulp line is provided with a displacement device for movement along the pipeline. The sections of pulp lines receive shell made of layers of syntactic and polyurethane, the ratio of thicknesses of which is (10-4):1. The displacement device affects the piping diaphragm, pumps hydraulic mixture from the bottom section to the next one which is arranged above the check valve, and moves along the outer side of the pulp line to the next piping diaphragm mounted above.

EFFECT: expanded functional capabilities.

3 dwg

 

The invention relates to the field of development of underwater mineral deposits and is intended for pipeline systems operating at great depths.

Known flexible submersible slurry pipeline containing multiple partitions pulpoprovoda pipes, pivotally interconnected, further provided with a hermetic shell, coaxially mounted on polipoprotein pipe in case of coincidence of the centers of gravity of the shell and tube and satisfy the following inequality:

where MSharnVSharn, McmVcm, MTrVTr, MaboutVaboutrespectively the mass (kg) and volume (m3) hinge, slurry, pipe and shell ρin- the density of water, and the shell is made of syntactica with a specific gravity of 0.5-0.6 t/m3and rigidly connected parts of the coupling, covering the pipe across the diameter. (Patent RF №2157438, F 02, F, 7/02, bull. No. 28, 10.10.2000).

Known flexible submersible slurry pipeline has limited depth which can be transported slurry due to resistance in a large number of hinge joints when working with depths greater than 200 meters, and has an external surface which is unsuitable for moving it pressurization device.

Known floating peristaltic us is, containing a craft with a cumulative capacity, tripping, lifting means, a vertical pipe with a tubular orifice, the suction device and the pressure device comprising a casing with valves located in the housing of the combustion chamber with a movable spring-loaded lids with dampers and supply system and ignition of the fuel, characterized in that the pump is provided with check valves separating vertical pipeline to consistently located at the height of the camera, and plug the device made in the form of radially placed around the periphery of the pipe of the combustion chambers adjacent to the tubular diaphragms interoperable with tripping, lifting means (USSR author's certificate No. 1749554, F 04 F, 1/4, Bulletin No. 27, 23.07.1992,) PROTOTYPE.

The disadvantage of a vertical pipe with a tubular diaphragm is the large weight of the sections, to prevent mounting and Dismounting at great depths.

The task of the invention is the improvement of operational capability (during installation and dismantling) flexible submersible pipeline in hydrotransport slurry from the depths.

The task is solved in that a flexible submerged pipeline containing multiple partitions pulpoprovoda pipes, including cameras with a non-return valve connected between the FDS is th tubular diaphragms, pressure device installed with the possibility of movement on the surface poluprovodnikov pipeline, according to the invention in the sections pulpoprovoda pipe shell is made of layers syntactica and polyurethane with respect to the layers (10-4):1, satisfying the following inequality:

where McmVcm, MTrVTr, MblueVblue, MfloorVfloor, MdiafVdiaf, MKokVKokrespectively the mass (kg) and volume (m3) slurry, polipoprotein pipe, the cylindrical shell of syntactica, a cylindrical shell made of polyurethane, a tubular diaphragm and chamber with a check valve, ρinthe density of the water and return ball valves is executed.

The device is flexible submersible pipeline is illustrated by drawings, where

- figure 1 - General view of the flexible submersible pipeline pressurization device

- figure 2 is a section polipoprotein pipe,

- figure 3 - connect sections with tubular diaphragm.

Flexible submersible pipeline consists of several sections pulpoprovoda pipes, and each section contains a metal part polipoprotein pipe 1, the camera 2 with non-return valve 3 (figure 2. and figure 3) and the tubular diaphragm 4. In sections moves vitess the tion device 5.

Inside polipoprotein pipe 1 are cylindrical shell of syntactica 6 and polyurethane 7, for sealing between the tubular chart 4 and the metal part 1 polipoprotein pipe set round with elliptical cross-section of the strip 8. Pressure device 5 on the external surface of the pipeline moves on wheels 9 with the rope 10.

Figure 3. shows the location of the layers syntactica and polyurethane in polipoprotein pipe. The thickness of the layer of polyurethane is small and depends on the abrasive properties of the pulp, thus satisfied the following inequality:

where McmVcm, MTrVTr, MblueVblue, MfloorVfloor, MdiafVdiaf, MKokVKokrespectively the mass (kg) and volume (m3) slurry, polipoprotein pipe, the cylindrical shell of syntactica, a cylindrical shell made of polyurethane, a tubular diaphragm chamber with a check valve, ρin- the density of water.

The thickness of syntactica may be different depending on the depth with which pumped and taken in proportion to the thickness of the polyurethane from 4:1 to 10:1. Using round with elliptical cross-section of the gasket 8 is provided a tight seal tubular diaphragm 4 with the metal the second wall 1 polipoprotein pipe.

Flexible submersible pipeline works as follows.

Pressure device 5, acting on the tubular diaphragm 4 high pressure pushes the slurry from the bottom section (section I-I, figure 1) in the following (section II-II), above the check valve 3.

Then plug the device 5 on the wheel 9 moves through the pipeline up to the next upstream tubular diaphragm 4 and acting high blood pressure, pushes the slurry until the next upstream section and so on until the top, where the slurry is poured into a storage tank on boat (figure 1, 2, 3 not shown).

From the top position displacement device 5 is coming down the pipe down to the mining complex at the bottom of the World ocean (figure 1,2,3 not shown). The external surface of the flexible submersible pipeline enables pressurization device 5 to move on wheels 9 up and down.

In use of the present invention achieves the technical effect is created flexible submersible pipeline to work at great depths.

Flex, containing several sections pulpoprovoda pipes, including chambers with non-return valves connected by a tubular diaphragms, pressure device, ustanovlennie can travel on the surface poluprovodnikov pipeline characterized in that in the sections pulpoprovoda pipe shell is made of layers syntactica and polyurethane with respect to the layer thicknesses (10-4):1 satisfying the following inequality:

where McmVcm, MTrVTr, MblueVblue, MfloorVfloor, MdiafVdiaf, MKokVKokrespectively the mass (kg) and volume (m3) slurry, polipoprotein pipe, the cylindrical shell of syntactica, a cylindrical shell made of polyurethane, a tubular diaphragm chamber with a check valve, ρinthe density of the water and return ball valves is executed.



 

Same patents:

FIELD: construction.

SUBSTANCE: pipeline is laid on the concave part of the longitudinal section of the trench bottom on the layer of soft soil and is locked by filling one or two layers of soil with compacting. Screw vertical anchors and load-carrying belts are then mounted. Before filling the trench, the space between the belt and pipeline is provided with a cloth of unwoven synthetic material.

EFFECT: enhanced reliability of pipeline locking.

4 dwg

FIELD: laying or reclaiming pipes.

SUBSTANCE: method includes removing upper layer of spoil, developing side trench with disposal the spoil by damping. The development of side trenches is performed step-by-step. The stripped trench is provided with stripping machine, the side trench are deepened by the working members of the stripping machine below the bottom of the pipeline and pipeline is continuously stripped by trenching machine and stripping machine when it moves forward. The stripping machine has frame with running carriages, clamps, supporting members and mechanism for forward motion.

EFFECT: enhanced efficiency.

3 cl, 4 dwg

FIELD: construction engineering; erection of underground pipe lines in permafrost soils, in bogs and in flooded and marshy areas.

SUBSTANCE: proposed polymer container ballasting unit has two distance rigidity frames located on both sides from pipe line, reservoirs made from polymer commercial cloth and filled soil which are secured to said frames, anti-erosion partitions and upper and lower weighting belts. Distance rigidity frames are curvilinear in form and their height exceeds diameter of pipe line being ballasted. Bend of each frame is made at obtuse angle and lower part of each frame is inclined towards pipe line relative to trench bottom. Polymer commercial cloth laid along pipe line makes distance frame rest against ground of trench bottom both in filling the reservoirs with soil and at action of pushing-out load.

EFFECT: extended functional capabilities.

3 cl, 1 dwg

FIELD: pipe line transport; major repair of pipe lines.

SUBSTANCE: proposed method includes introducing the front end of pipe into damage pipe and forming hermetic cavity in inter-pipe space; then, pressure air (gas) is charged into hermetic cavity for motion of new pipe inside damaged pipe, after which piston is fitted at end of new pipe and detachable flange is connected to rear end of damaged pipe; motion of new pipe is effected by periodic charging of air into hermetic cavities; each hermetic cavity is bounded by piston and seal.

EFFECT: reduction of tractive force.

5 dwg

FIELD: construction engineering; erection of pipe lines in permafrost soils at alternating terrain.

SUBSTANCE: trench in smooth terrain and in sections cut by hydrographic net is dug in active layer at depth sufficient for location of upper generatrix of pipe line above level of daily level. Prior to laying the pipe line, bottom walls and berms of trench are lined with cloth of non-woven synthetic material. backfill soil is placed in ballasting polymer panel-type devices or in ballasting polymer container-type units suspended from pipe line. Anti-erosion partitions made from non-woven synthetic material are formed in sloping sections together with funnel whose neck is located downward of water flow embracing the pipe line at specified clearance between neck and pipe line. Funnel is formed by covering the natural slope of backfill soil by free lower edge of non-woven synthetic material with ballasting polymer panel-type or ballasting polymer container-type devices placed on lower portion of funnel followed by subsequent removal of embankment protecting the pipe line. As far as sections of route cut by hydrographic network are concerned, anti-erosion partitions are formed in trench at transients with opposite slopes of microterrain; anti-erosion partitions are made from anti-erosion cloths and backfill soil is placed n soil-filled weighting materials attached to pipe line. At low points where opposite sections cross, water pass or water bypass structure is formed in trench.

EFFECT: enhanced reliability; reduced scope of earth-moving work; enhanced stability of pipe line in horizontal plane.

9 cl, 8 dwg

FIELD: construction engineering; erection of pipe lines in thawing permafrost soils and in flooded areas.

SUBSTANCE: proposed method includes ditching at trench with widened areas located at definite distances and pipe line is laid on bottom of trench. Pipe line is covered with flexible rugs and bottom of trench at widened areas is also covered with rugs; edges of rugs are fastened in widened areas and trench is filled. Used as anchor member are cylindrical textile containers placed in lugs of flexible rugs in parallel with pipe line and filled with soil. Prior to fastening the edge sections of flexible rugs, each of them is tightened at fixation of tension; preliminary tension of edge sections is effected during filling the widened areas and trench soil ensuring contact of flexible rugs with bottom of widened areas and trench. Filling the widened areas and trench is performed in direction towards pipe line, symmetrically relative to it.

EFFECT: enhanced reliability of attachment of pipe line at 0required marks.

13 cl, 4 dwg

FIELD: construction, applicable for trenchless laying and replacement of underground pipe-lines.

SUBSTANCE: a reciprocating striker is positioned in the casing of the pneumatic percussion mechanism. The air-distributing system of the mechanism includes the front and rear working chambers, inlet and exhaust valves and a fixture for closing and opening of the exhaust channels made in the form of a spring-loaded end face stopper coupled to a tractive member. At actuation of the pneumatic percussion mechanism, before the supply of compressed air, the exhaust channels are closed, they are opened after the inner cavities of the pneumatic percussion mechanism are filled with compressed air.

EFFECT: provided automatic cyclic action of the pneumatic percussion mechanism.

3 cl, 3 dwg

The invention relates to construction and is used for trenchless installation and replacement of underground pipelines

The invention relates to the construction and relates to underground pipeline installation for areas with active seismotectonic zones

The invention relates to pipeline transport and used for the construction and operation of pipelines

FIELD: construction, applicable for trenchless laying and replacement of underground pipe-lines.

SUBSTANCE: a reciprocating striker is positioned in the casing of the pneumatic percussion mechanism. The air-distributing system of the mechanism includes the front and rear working chambers, inlet and exhaust valves and a fixture for closing and opening of the exhaust channels made in the form of a spring-loaded end face stopper coupled to a tractive member. At actuation of the pneumatic percussion mechanism, before the supply of compressed air, the exhaust channels are closed, they are opened after the inner cavities of the pneumatic percussion mechanism are filled with compressed air.

EFFECT: provided automatic cyclic action of the pneumatic percussion mechanism.

3 cl, 3 dwg

FIELD: construction engineering; erection of pipe lines in thawing permafrost soils and in flooded areas.

SUBSTANCE: proposed method includes ditching at trench with widened areas located at definite distances and pipe line is laid on bottom of trench. Pipe line is covered with flexible rugs and bottom of trench at widened areas is also covered with rugs; edges of rugs are fastened in widened areas and trench is filled. Used as anchor member are cylindrical textile containers placed in lugs of flexible rugs in parallel with pipe line and filled with soil. Prior to fastening the edge sections of flexible rugs, each of them is tightened at fixation of tension; preliminary tension of edge sections is effected during filling the widened areas and trench soil ensuring contact of flexible rugs with bottom of widened areas and trench. Filling the widened areas and trench is performed in direction towards pipe line, symmetrically relative to it.

EFFECT: enhanced reliability of attachment of pipe line at 0required marks.

13 cl, 4 dwg

FIELD: construction engineering; erection of pipe lines in permafrost soils at alternating terrain.

SUBSTANCE: trench in smooth terrain and in sections cut by hydrographic net is dug in active layer at depth sufficient for location of upper generatrix of pipe line above level of daily level. Prior to laying the pipe line, bottom walls and berms of trench are lined with cloth of non-woven synthetic material. backfill soil is placed in ballasting polymer panel-type devices or in ballasting polymer container-type units suspended from pipe line. Anti-erosion partitions made from non-woven synthetic material are formed in sloping sections together with funnel whose neck is located downward of water flow embracing the pipe line at specified clearance between neck and pipe line. Funnel is formed by covering the natural slope of backfill soil by free lower edge of non-woven synthetic material with ballasting polymer panel-type or ballasting polymer container-type devices placed on lower portion of funnel followed by subsequent removal of embankment protecting the pipe line. As far as sections of route cut by hydrographic network are concerned, anti-erosion partitions are formed in trench at transients with opposite slopes of microterrain; anti-erosion partitions are made from anti-erosion cloths and backfill soil is placed n soil-filled weighting materials attached to pipe line. At low points where opposite sections cross, water pass or water bypass structure is formed in trench.

EFFECT: enhanced reliability; reduced scope of earth-moving work; enhanced stability of pipe line in horizontal plane.

9 cl, 8 dwg

FIELD: pipe line transport; major repair of pipe lines.

SUBSTANCE: proposed method includes introducing the front end of pipe into damage pipe and forming hermetic cavity in inter-pipe space; then, pressure air (gas) is charged into hermetic cavity for motion of new pipe inside damaged pipe, after which piston is fitted at end of new pipe and detachable flange is connected to rear end of damaged pipe; motion of new pipe is effected by periodic charging of air into hermetic cavities; each hermetic cavity is bounded by piston and seal.

EFFECT: reduction of tractive force.

5 dwg

FIELD: construction engineering; erection of underground pipe lines in permafrost soils, in bogs and in flooded and marshy areas.

SUBSTANCE: proposed polymer container ballasting unit has two distance rigidity frames located on both sides from pipe line, reservoirs made from polymer commercial cloth and filled soil which are secured to said frames, anti-erosion partitions and upper and lower weighting belts. Distance rigidity frames are curvilinear in form and their height exceeds diameter of pipe line being ballasted. Bend of each frame is made at obtuse angle and lower part of each frame is inclined towards pipe line relative to trench bottom. Polymer commercial cloth laid along pipe line makes distance frame rest against ground of trench bottom both in filling the reservoirs with soil and at action of pushing-out load.

EFFECT: extended functional capabilities.

3 cl, 1 dwg

FIELD: laying or reclaiming pipes.

SUBSTANCE: method includes removing upper layer of spoil, developing side trench with disposal the spoil by damping. The development of side trenches is performed step-by-step. The stripped trench is provided with stripping machine, the side trench are deepened by the working members of the stripping machine below the bottom of the pipeline and pipeline is continuously stripped by trenching machine and stripping machine when it moves forward. The stripping machine has frame with running carriages, clamps, supporting members and mechanism for forward motion.

EFFECT: enhanced efficiency.

3 cl, 4 dwg

FIELD: construction.

SUBSTANCE: pipeline is laid on the concave part of the longitudinal section of the trench bottom on the layer of soft soil and is locked by filling one or two layers of soil with compacting. Screw vertical anchors and load-carrying belts are then mounted. Before filling the trench, the space between the belt and pipeline is provided with a cloth of unwoven synthetic material.

EFFECT: enhanced reliability of pipeline locking.

4 dwg

FIELD: pipeline transport.

SUBSTANCE: flexible pipeline comprises several pulp lines provided with chambers with ball check valves and interconnected through piping diaphragms. The outer surface of the pulp line is provided with a displacement device for movement along the pipeline. The sections of pulp lines receive shell made of layers of syntactic and polyurethane, the ratio of thicknesses of which is (10-4):1. The displacement device affects the piping diaphragm, pumps hydraulic mixture from the bottom section to the next one which is arranged above the check valve, and moves along the outer side of the pulp line to the next piping diaphragm mounted above.

EFFECT: expanded functional capabilities.

3 dwg

FIELD: construction.

SUBSTANCE: pipeline has triply connected supports mounted on the stable sections above and under the slope subject to creep, one connected supports arranged over the subject to creep slope, and deformation compensator. The distance between the upper support and site of the deformation compensator arranged below the slope subject to creep is determined from the formula proposed.

EFFECT: enhanced reliability of the pipeline.

2 dwg

FIELD: construction.

SUBSTANCE: working member comprises rotors provided with teeth arranged symmetrically with respect to the axis of pipeline and provided with drive and mechanism for bringing the rotors together and moving them apart. Each rotor is provided with cleaning device which is arranged behind the rotor and secured to the unmovable segment of the working member for keeping it unmovable or permitting rotation. The cleaning members permanently co-operate with the outer side of the rotor.

EFFECT: enhanced efficiency.

1 dwg

Up!