IT202100018518A1 - PIPING FOR THE TRANSPORT OF FLUID UNDER PRESSURE EQUIPPED WITH DEVICES FOR EFFICIENCY OF THE FLOW MOVEMENT OF THE MATERIAL CONVEYED AND LINE OF PIPES FOR THE TRANSPORT OF FLUIDS UNDER PRESSURE EQUIPPED WITH DEVICES FOR THE EFFICIENCY OF THE FLOW MOVEMENT OF THE MATERIAL CONVEYED - Google Patents

Description

PIPE FOR THE TRANSPORT OF FLUIDS UNDER PRESSURE EQUIPPED WITH EFFICIENCY DEVICES OF THE FLOW MOVEMENT OF

CONVEYED MATERIAL AND LINE OF PIPES FOR THE

TRANSPORT OF PRESSURIZED FLUIDS EQUIPPED WITH DEVICES OF

EFFICIENCY OF MATERIAL FLOW MOTION

TRANSPORTED

[0001] The present invention relates to a pipeline for the transport of fluids under pressure equipped with devices for streamlining the flow of the material being transported and a line of pipes for the transport of fluids under pressure equipped with devices for streamlining the motion of the flow of the transported material.

[0002] The innovation finds particular although not exclusive application in the industry for the production of dredging systems and their accessories and components, in particular in the industry for the production and marketing of pipes and tubes for the transport of solid substances, fluid or liquid and particularly in the industrial sector of the production and marketing of pipelines and lines of pipelines used for dredging purposes.

[0003] Currently known and known are all those devices used in the transport of fluid materials and which take the form of pipelines or pipes which are conveying devices, synthetically actuating a solid cable with a constant section in area, characterized by the absence of dispersion outside the transported material whether it is solid, albeit with a different granulometry, whether it is fluid, liquid or gaseous. With reference to the fields of use of the pipelines for the transport of materials, particularly for materials of a fluid type, of particular interest for the purposes of the invention are those implemented as a consequence of the removal of the results of a dredging carried out using dredging means of the known type and in particular as regards the context of the invention, of dredges of the hydraulic type which last use pumps of the centrifugal type in which the dredged material is taken following the depression generated by the pump in the sampling area. As a consequence of the dredged material removal operations carried out by dredgers, many solutions have been developed to allow it to be transported for unloading. In order to convey the excavated material removed, ? It is usual to provide for the preparation of lines of pipelines, pipe lines, made up of contiguously joined pipes, being generally provided with connection flanges, and being conveniently made of material with specificity of resistance to abrasion. In the current state of the art, pipes are known which are made of metallic material such as usually steel, of synthetic material such as resins or plastics with specific characteristics of resistance to abrasion, for example, currently and widely used, polyethylene. The needs of conveying the dredging material foresee the necessity? to create lines of floating pipelines also and not exclusively placed in order to allow the dredger to carry out the necessary movements around the dredging area, or more? extensively, in order to allow the immediate identification of the conduct itself. Pipelines are widely used also as a means of transport used in the extractive industry, particularly oil, in order to conveniently convey the oil extracted from the reservoir at least to a storage site. In the current state of the art, pipelines arranged for the purpose of transporting petroleum are usually implemented by means of the appropriate junction of a series of pipes, preferably in steel.

[0004] In order to achieve buoyancy? of a line of pipelines, the known state of the art for some solutions currently provides that each pipeline, particularly dredging, can be equipped with removable flotation devices which themselves are suitably associated and positioned on the pipeline itself, thus requiring the preparation and assembly of separate devices, respectively the dredging pipe and the floating device. Furthermore, the current known sectoral art provides that the pipeline, particularly for dredging, is made floating by means of the association of a floating device such as to envelop almost all of it. of the longitudinal development leaving free the areas corresponding to the extremities? terminals, so as to allow operators to carry out the necessary operations for joining one pipeline to another, or by providing that the pipeline to be made floating is joined by suitable floating devices placed along its longitudinal development, the floating devices themselves being made in mutually associable half-shells. Basically, for some solutions referred to in the current state of the known art, the buoyancy? of each behavior? obtained through the subsequent association of floating devices, thus requiring the intervention of specialized personnel for the positioning of the floating devices, as their management and storage are also necessarily separate. With particular reference to the pipes actuating pipelines for dredging, pipelines actuated in the form of a pipe are known which, if made of metallic material, is provided with flanges perimetrically equipped with through seats, for the engagement, in order to allow the mutual joining of two or more? conducted. Since it has been found that metal dredging pipelines are, among other things, more subject to wear and tear and more? difficult to maneuver given the connatural rigidity? of the material, some companies in the sector have decided to adopt dredging pipeline solutions made of synthetic material such as, for example, plastic resins and in particular polyethylene. With reference to pipes made of synthetic material, they are usually structured in such a way as to coincide with each end a flange joint portion cooperating with a suitable flange arranged with through perimetral engagement seats for threaded engagement devices.

State of art

[0005] Also in the current patent literature we can trace some solutions pertaining to dredging pipelines and/or related floats. Among the solutions found, by way of example, the following are mentioned:

D1 no. TV2011A000053

D2 no. ITTV201400336

D3 no. PCT/IB2020/053925

[0006] D1 briefly describes a solution of a floating pipeline for dredging comprising a dredging pipe provided with engagement flanges provided with through holes being the dredging pipe, in correspondence with the area between the ends? terminals of the same, stably equipped with at least one floating device in rigid expanded polyurethane resin of the closed cell type, the floating device being stably anchored to the pipe by means of a coating in synthetic material, particularly polyethylene, which conveniently engages both the pipe and the floating device.

[0007] D2 briefly describes a floating pipeline solution for the transport of pressurized fluids equipped with devices for making the buoyancy more efficient and with means for making the flow of the material transported more efficient, comprising a pipe equipped with at least one floating device, one-piece , removable and anchored to the pipe by means of electro-welded metal collars positioned at the end? of the same, said tube being equipped with at least one flow motion efficiency device comprising radially shaped fins arranged and positioned, internally, at at least one end of the tube, said fins being shaped capable of causing a change in the motion of the internal flow of the fluid under pressure which passes through the tube, causing a conversion of the motion of said flow from linear motion to turbulent motion.

[0008] D3 synthetically describes a thermoplastic pipe with co-extruded TP-E internal layer with or without TP-E floats, for the transport of pressurized fluids containing even abrasive materials which comprises a pipe body made of synthetic material and in which the said pipe? adapted to be part of a pipeline line, in which the pipe body comprises at least one external wall made of thermoplastic material and at least one internal wall, coaxial to the external wall, made of thermoplastic-elastomeric material.

Drawbacks

[0009] All known piping solutions, in particular for dredging or for the transport of petroleum substances, have drawbacks which limit their operating efficiency.

[0010] A first limitation of the pipes according to the known state of the art, according to the applicant, is yes? found to exist in the identified circumstance whereby the current piping solutions, particularly for dredging and extensively for the transport of petroleum substances, given their structuring are not optimized in terms of streamlining the flow of material transported by reducing load losses and allowing the pump pressure of the dredging or pumping equipment to be decreased.

[0011] A second limitation of the pipes according to the known state of the art, according to the applicant, is yes? found to exist in the detected circumstance for which the current piping solutions, particularly for dredging and largely for the transport of petroleum substances, given the structuring of the same, are not optimized in terms of the possibility? to proceed to an optimal reduction of the overall energy consumption necessary for transport operations.

[0012] A third limitation of the pipes according to the known state of the art, in the opinion of the applicant, is yes? found to exist in the identified circumstance whereby the current piping solutions, particularly for dredging and extensively for the transport of petroleum substances, given their structuring are not optimized in terms of adequate containment of environmental pollutants resulting from transport operations.

[0013] Another limitation of the pipes according to the known state of the art, in the opinion of the applicant, yes? found to exist in the identified circumstance whereby the current piping solutions, particularly for dredging and extensively for the transport of petroleum substances, given their structuring are not optimized in terms of energy efficiency and consequently the containment of the overall costs of the operations transport carried out.

[0014] There? so the need? by companies in the sector to identify optimal solutions to achieve the subsequent pre-established goals.

Summary of the object of the invention

[0015] These and other objects are achieved with the present innovation according to the characteristics set forth in the appended claims by solving the problems described by means of a pipe for the transport of pressurized fluids equipped with devices for making the flow of the material transported more efficient and a piping for the transport of pressurized fluids equipped with devices for streamlining the flow of the material being transported in which the piping comprises an axially hollow tube body and ? adapted to be part of a piping line, in which the pipe body ? equipped with at least one withdrawal duct and at least one input duct, where both the withdrawal duct and the input duct are in communication with the cavity? of the pipe body and in which the withdrawal conduit and the inlet conduit are connected to at least one pump.

Purposes

[0016] Objectives and advantages are achieved through the considerable creative contribution the effect of which constitutes an immediate technical progress.

[0017] A first advantageous object consists in realizing a pipe for the transport of fluids under pressure equipped with devices for making the flow of the material conveyed more efficient and a line of pipes for the transport of fluids under pressure equipped with devices for making the motion more efficient flow of the transported material thanks to whose particular structure it is possible to optimize the efficiency of the flow of the transported material by reducing the load losses and allowing to decrease the pump pressure of the dredging or pumping means also adapting its trend to the monitoring of parameters , at least of pressure, abrasion and temperature of the flow of the material transported and of the pipeline, detected in real time along the line.

[0018] A second advantageous object consists in realizing a pipeline for the transport of fluids under pressure equipped with devices for streamlining the flow of the material being transported and a line of pipes for the transport of fluids under pressure equipped with devices for streamlining the motion of the flow of the transported material thanks to whose particular structure it is possible to operate an optimal reduction of the overall energy consumption necessary for the transport operations.

[0019] A third advantageous object consists in realizing a pipeline for the transport of fluids under pressure equipped with devices for streamlining the flow of the material being transported and a line of pipelines for the transport of fluids under pressure equipped with devices for streamlining the motion of the flow of the transported material thanks to whose particular structure it is possible to optimize the containment of the environmental pollutants resulting from the transport operations.

[0020] Another advantageous object is to provide a pipeline for the transport of fluids under pressure equipped with devices for making the flow of the material conveyed more efficient and a line of pipes for the transport of fluids under pressure equipped with devices for making the motion more efficient flow of the transported material thanks to the particular structure of which, given in particular by the provision of energy conversion devices produced from renewable sources, allows for the implementation of a significant energy efficiency and consequently an equally important containment of the overall costs of the transport operations carried out .

[0021] These and other advantages will appear from the following detailed description of some preferential construction solutions whose execution details are not to be understood as limiting but only as examples.

Drawing content

Figure 1 ? an overall side view of the pipe according to the object of the present invention, provided with a flow motion efficiency device;

Figure 2 ? an overall axonometric view of the pipe according to the finding object of the present invention in which the withdrawal duct and the inlet duct of the device for making the flow of the material conveyed more efficient are represented;

Figure 3 ? a longitudinal sectional view of the pipe according to the finding object of the present invention in which the withdrawal duct and the inlet duct of the device for making the motion of the flow of the material conveyed more efficient are shown in section;

Figure 4 ? a front view of the pipe according to the finding object of the present invention in which the withdrawal duct and the inlet duct of the device to improve the flow of the material conveyed are represented;

Figure 5 ? an overall side view of the pipe according to the finding object of the present invention, equipped with floating devices and with a device for making the flow of the material conveyed more efficient;

Figure 6 ? a front view of the pipe according to the finding object of the present invention provided with a device for making the flow motion of the material being conveyed more efficient, in the variant comprising shaped fins for further making the flow motion of the material being conveyed more efficient;

Figure 7 ? a side view, partially in section, of two pipes constituting a line of pipes according to the object of the present invention;

Figure 8 ? a view, partially in longitudinal section, of two pipes constituting a line of pipes according to the finding object of the present invention with the withdrawal duct and the inlet duct shown;

Figure 9 ? a front view of a pipe constituting a line of pipes according to the finding object of the present invention;

Figure 10 ? a side view of a pipeline with a device for streamlining the flow of the material being transported engaged to a pontoon equipped with a device for generating electricity from a renewable source;

Figure 11 ? a front view of a pipeline with a device for streamlining the flow of the material being transported engaged to a pontoon equipped with a device for generating electricity from a renewable source as shown in figure 10;

Figure 12 ? a plan view from above of a pipeline with a device for making the flow of the material being transported more efficient engaged to a pontoon equipped with a device for generating electricity from a renewable source as shown in figure 10;

Figure 13 ? a side view of a pipe in a pipe line according to the finding object of the present invention equipped with monitoring devices.

Practical realization of the invention

[0022] Referring without limitation also to the content of the drawings in figures from 1 to 13, a pipeline (1) is described for the transport of pressurized fluids equipped with devices for streamlining the flow of the material being transported and a line of pipes for the transport of fluids under pressure equipped with devices for making the flow of the material transported more efficient, in which the pipe (1) according to the invention is of the type set up for the transport of fluids under pressure which can also contain materials wholly or partly abrasive where, as particularly represented in figure 1, which illustrates a possible embodiment of the invention in a basic configuration, the described pipe (1) is expected to be implemented in order to particularly meet the requirements of the transport of fluids under pressure in the field of dredging, the solution of the invention, broadly, being also able to be considered predisposed to respond to the needs connected with the transport of petroleum products such as conventionally crude oil, in any case said pipeline (1) being able to be implemented for the conventional transport of at least solid, fluid or liquid material. In greater detail, as particularly evident from the representation in figure 1, the pipe (1) of the invention comprises an axially hollow pipe body (2) actuated in a suitable shape to allow it to carry out its intended function, as said, consisting in allowing the appropriate transport, particularly for dredging purposes, at least of solid, fluid, liquid substances and/or mixtures of the same, in which the construction materials of the pipe body (2) are expected to be such as to adequately respond to the foreseen needs of the destination and in particular such as to guarantee adequate resistance to abrasion. By way of example, steel or synthetic materials are among the materials suitable for achieving the purpose of making a pipe body (2) suitable for allowing its use particularly in the context of dredging or the transport of petroleum products. As is preferable and usual in the field of dredging pipelines, it is envisaged that the shape of the pipe body (2) is implemented in a hollow cylindrical shape.

[0023] Furthermore, since the tube body (2) of the present invention ? particularly implemented in order to form an element of a pipeline line, the latter being particularly, even if not exclusively, suitable for use in the field of dredging, it is envisaged that the pipe body (2) referred to in the pipeline (1 ) object of the invention is made in such a way as to be able to operate at pressure values at least between 2 bar and 40 bar, as well as? that the length of the same is at least between 6 meters and 13.50 linear metres, providing that the diameter of the pipe body (2) is at least between 160 mm and 1200 mm. In any case, the parameters of resistance to pressure, length and diameter of the pipe body (2) can also be different from those indicated as preferable, depending on the specific destination. As mentioned, since? the destination of the pipe (1) ? that of constituting an element of a line of pipes (1) it is foreseen that, in a known way, each pipe (1) can be suitably joined to the contiguous one by flanging or welding, where in the case of pipes (1) made of synthetic material it is foreseen that the welding is preferably carried out by electrofusion. In any case, the joining of the pipes (1) takes place in a known way, by way of example, as regards the pipes (1) made of synthetic material, it is envisaged that the pipe (1) is in a known way provided with fittings consisting of sleeves/collars terminals welded by electrofusion to the external surface of the pipe (1), as well as? in a known way, for the purpose of the joint, equipped with steel flanges (3), gasket, bolts and nuts. Specifically, in the case in which the joint between a pipe (1) and the contiguous one takes place by welding by means of electrofusion, it is envisaged that the pipe body (2) will be equipped with known fittings consisting of sleeves and/or collars for electrofusion the latter incorporate an electric heating spiral which melts the thermoplastic material of both the fitting and the pipe body (2), in the fitting area, causing the joint by fusion.

[0024] In greater detail in the example of embodiment being described, it is envisaged that, conventionally in the case of a joint by flanging, the body of the pipe (2) at each of the two ends? terminals comprise a protruding edge (3) for anchoring and stopping a flange (4), the latter being of a known type, resulting provided with a series of through holes (41) placed in order to allow the junction of two realized pipes (1 ), in which said joint by flanging takes place through the use of usual threaded fastening devices, conventionally steel bolts (5) able to engage the flanges (4) of two contiguous pipes (1). In order to allow the joint to be sealed, interposed between the flange (4) of a pipe (1) and the flange (4) of the contiguous pipe (1) ? the positioning of a suitable gasket of a known type is foreseen. In detail, each protruding edge (3) is expected to be associated with the end? end of the pipe body (2) by a conventionally known process, usually heat-sealing, said heat-sealing being carried out in such a way as not to create steps inside the pipe (1), this? in order to avoid the triggering of anomalous abrasion phenomena on the internal surface of the pipe body (2) itself when inside the same? transported the material to be transported.

[0025] Furthermore, in the example of embodiment described it is envisaged that the pipe body (2) of the pipe (1) object of the present invention, when made of synthetic material, although it may be of the single-layer type, is preferably of the multilayer type, to this end comprising at least one external wall (21) in thermoplastic material and particularly in polyethylene, where the type of polyethylene which is expected to form the external wall (21) of the pipe body (2) will be? determined particularly by the specific characteristics of use of the pipe (1) itself, particularly depending on the parameters of tensile strength, hardness and resistance to temperature which are expected to characterize the pipe (1) in the specific case. In this way, it is envisaged that the external wall (21) of the pipe body (2) can be made of polyethylene polymers of the HDPE, MDPE, LDPE, LLDPE type. Furthermore, the outer wall (21) of the pipe body (2) can itself be of the single-layer type or of the multi-layer type depending on what must be understood to be the destination requirements of the pipe (1) in the specific case. In the preferential embodiment that is described, of figures from 1 to 3, it is envisaged that the pipe body (2) of the pipe (1) object of the invention is implemented in such a way as to include, in addition to a wall outer wall (21), at least one inner wall (22), coaxial to the outer wall (21). Said inner wall (22) of the pipe body (2) is expected to be made of synthetic material of a known type which meets the requirements of the destination, by way of example being able to be made of polyethylene of a suitable density? in reference to the specificity? of the pipe (1). Preferably, in order to respond in an optimal manner at least to the requirements of high resistance to abrasion and resilience, the internal wall (22) of the pipe body (2) is provided to be made of thermoplastic-elastomeric material, TP-E, of known type.

[0026] The preference in making the pipe body (2) in such a way as to include an external wall (21) in thermoplastic material, preferably in HDPE, and an internal wall (22) in elastomeric thermoplastic TP-E, implies the advantage of combine in a single solution the characteristics of high resistance to tearing of the external wall (21) in thermoplastic material with the characteristics of high resistance to abrasion and resilience of the internal wall (22), the latter being made of thermoplastic composite -elastomeric TP-E, wherein the outer wall (21) and the inner wall (22) of the tube body (2) are preferably obtained by coextrusion. More in detail of the embodiment that is described and preferably, it is envisaged that the inner wall (22) of the pipe body (2) is formed by a mixture comprising a percentage of TPE and/or TPU and/or TPO mixed with a percentage of HDPE and/or MDPE and/or LDPE and/or LLDPE, where it is envisaged that the inner wall (22) of the pipe body (2) which is co-extruded with the outer wall (21) should preferably consist of a mixture with the addition of a thermoplastic elastomer matrix belonging to the TPE and/or TPU and/or TPO family in a percentage between 30% and 40% HDPE and/or MDPE and/or LDPE and/or LLDPE and between 60% and 70% thermoplastic elastomer of the TPE and/or TPU and/or TPO family.

[0027] Innovatively, in order to improve the transport efficiency of the pipeline (1) by limiting the load losses of the same, in the solution according to the present invention, as particularly represented in the representations of figures from 1 to 4, it is provides that the tube body (2) of the pipeline (1) is suitably equipped with at least one flow motion efficiency device (6) of the material being transported comprising at least one withdrawal duct (7) and at least one inlet duct (8) suitably and in a known way connected to at least one pump (9) in which both the withdrawal duct (7) and the inlet duct (8), as particularly represented in figure 3, are expected to be made in such a way as to be placed directly in communication with the cavity? of the tube body (2). In greater detail of the embodiment described, as particularly represented in the representations of figures 2 to 4, it is envisaged that the withdrawal duct (7) is actuated in such a way as to be inclined relative to the longitudinal axis of the pipe body (2). Furthermore, as shown in figure 2, it is foreseen that the withdrawal duct (7) is oriented in the direction of flow of the flow of the material transported inside the pipe (1).

[0028] In further detail of the embodiment described, as represented in the representations of figures 2 to 4, it is envisaged that both the withdrawal duct (7) and the inlet duct (8) are cylindrical in which, preferably, it is envisaged that the internal caliber of the withdrawal duct (7) is greater in relation to the internal caliber of the inlet duct (8). More in detail, the inlet duct (8) ? implemented in such a way as to be inclined relative to the axis of the tube body (2) of the pipeline (1) providing that the inlet duct (8) is oriented in the direction of flow of the flow of the material transported by the pipeline (1), where provides that the degree of inclination of the inlet duct (8) relative to the axis of the pipe body (2) is preferably between 10? and 30?, while the degree of inclination of the withdrawal duct (7) relative to the axis of the tube body (2) is preferably between 5? and 20?. Furthermore, it is envisaged that the withdrawal duct (7) with which the pipe (1) is equipped must be placed in correspondence with the upper part of the pipe body (2) when the pipe (1) is positioned in operating condition, while it is foreseen that the inlet duct (8) must be placed in correspondence with the portion of the pipe body (2) coinciding with or close to the lower part of the same when the pipe (1) is? positioned in operating condition?. In the solution according to the invention, having arranged the pipeline (1) in such a way that it is equipped with at least one flow motion efficiency device (6) comprising at least one withdrawal duct (7) and at least one duct intake pipe (8), which is expected to be placed downstream of the withdrawal duct (7) considering the direction of flow of the material transported, innovatively allows to obtain an efficiency of the flow motion of the transported fluid allowing to actively contrast the deposit of the sediment of the fluid transported allowing the withdrawal of part of the fluid transported itself and its appropriate reintroduction, under pressure, into the pipe (1).

[0029] In greater detail of the solution object of the invention, as particularly represented in figure 1, it is envisaged that the withdrawal duct (7) and the inlet duct (8) of which ? provided the pipe (1) are, also through known connection pipes, functionally connected to a pump (9) of known type, which pump (9), driven by at least one motor of known type, preferably of electric type, is envisaged implemented in order to allow that the activation of the same, during the transit of the flow of the fluid transported by the pipe (1), is able through the sampling duct (7) to intercept and withdraw, without creating a depression at the suction point , part of the fluid transported and, through the inlet duct (8), to reintroduce into the pipe (1) the transported fluid taken from the sampling duct (7) at a higher pressure relative to the sampling pressure. The efficiency of the transit of the material transported in the pipeline (1) according to the solution object of the present invention ? allowed by the fact that the reintroduction of the pressurized fluid taken from the sampling duct (7) which is carried out in the pipe (1) through the inlet duct (8) determines an effective contrast to the sediment deposition in the lower part of the inside of the pipe (1). Pi? in detail, the solution object of the invention foresees that the withdrawal duct (7) is placed in correspondence with the upper part of the pipe (1), when this is? in operating condition?, in such a way that, as a consequence of the activation of the foreseen pump (9), which can? be controlled remotely by means of known activation, command and control devices, including wireless ones, through said sampling conduit (7) itself, part of the pressurized fluid flowing therein is withdrawn from inside the pipe (1), in which the expected that the withdrawal duct (7) is located at the top of the pipe (1) ? determined by the fact that in operating condition? of the pipe (1), particularly during dredging operations, does the fluid flowing inside the pipe (1) ? consisting of a mixture of liquid and solid material, water and sediments, in which the solid part tends to precipitate downwards, thus, the withdrawal of part of the fluid under pressure in the upper part of the pipe (1) allows to take that part of the pressurized fluid itself in which the liquid fraction of the mixture ? significantly prevailing compared to the solid cos? to allow its reintroduction into the inlet duct (8) of the pipeline, at a pressure increased with respect to the withdrawal pressure, to cause the lifting of the solid fraction of the fluid transported which is? sedimented in the lower part of the pipe (1). The action, at increased pressure, performed by the flow motion efficiency device (6), of reintroducing into the lower part of the pipe (1), the substantially liquid fraction of the fluid of the material transported in the pipe (1) itself, causing the lifting of the sediment deposited, gives a perturbation of the sediment itself capable of rebalancing locally, in a way favorable to the transport, the proportion between the liquid fraction and the solid fraction of the fluid transported thus? to effectively reduce pressure drops in the pipeline (1).

[0030] In order to further optimize the withdrawal of the liquid fraction of the fluid transported in the pipe (1), as mentioned, it is foreseen that the withdrawal conduit (7) is oriented in the direction of flow of the flow of the material transported and that the degree inclination of the withdrawal duct (7) itself, relative to the longitudinal axis of the pipe (1), is preferably between 20? and 5?, a degree of inclination of the withdrawal duct (7) of 15? having been identified as preferable. Furthermore, is the possibility foreseen? to equip the sampling duct (7) with a suitable grate, placed in order to prevent the entry of sediments of inadequate size. Experiments carried out, have identified as preferable a pressure difference between the pressure of the fluid withdrawn from the sampling duct (7) and the pressure of the fluid returned to the inlet duct (8) comprised in a range of values from 0.2 BAR to 1 BAR. Furthermore, it is envisaged that the caliber of the withdrawal duct (7) is such as to be greater in relation to the caliber of the inlet duct (8). The described technical expedient of the invention, allowing the sediment referred to in the fluid transported inside the pipe (1) to be kept locally in suspension, achieves the advantage of limiting the load losses along the pipe line (1) so ? to significantly reduce the need? that the pump of the dredge operates at high power, thus consistently reducing the fuel consumption of the dredge itself. Moreover, said technical expedient, allowing to contribute to significantly reducing the friction of the material transported along the internal wall (22) of the tube body (2) of the pipeline (1), consequently contributes to reducing its wear and tear by decreasing environmental pollution total amount of micro plastics that would result.

[0031] A possible variant of the invention, as illustrated by way of example in figure 6, provides that the pipe body (2) of the pipe (1) of the invention is equipped in correspondence with the internal part, in the example in correspondence with the internal wall (22), of a series of shaped flaps (10), of a known type, radially arranged and positioned, internally, at at least one end? of the tube body (2) with which they are supplied, since said shaped fins (10) are capable of determining a change in the motion of the internal flow of the pressurized fluid which passes through the tube body (2), causing a conversion of the motion of said flow from linear motion to turbulent motion, thus making further efficient the motion of the flow of the material transported so? contributing to the further containment of pressure drops in the pipe (1). In greater detail, the provided shaped fins (10) are oblique relative to the median plane of the tube body (2) so as to perturb the motion of the flow of the fluid which passes through them in a whirling manner. The number of said shaped fins (10), their inclination, their torsion and more? largely the dimensions of the same are strictly dependent on the dimensions of the tube body (2) of the pipe (1) of which they are intended to be supplied and on the type of fluid that must be transported so that in any case the combination of the said parameters leads to obtain the perturbation of the fluid flow in order to give it a turbulent motion. The solution which is the object of the present invention also provides for the possibility that alternatively or jointly with said shaped fins (10) the pipe body (2) of the pipe (1) is equipped with a known flow efficiency device, not shown, of the type comprising a support flange, compatible for being engaged to the flange (4) of which ? the tube body (2) is provided, to which the support flange is radially associated with shaped laminae, in the example metal, which shaped laminae themselves are with one end? anchored to the support flange being suitably positioned in such a way that once said flow efficiency device is positioned inside the pipe body (2) they result to insist in adherence to the internal wall (22) of the pipe body (2) same resulting obliquely disposed, being so? positioned in such a way that the angular torsion coefficient of the same is such as to determine the perturbation of the fluid flow cos? to give it a turbulent motion. In a known way, as shown by way of example in figure 5, in order to allow the improvement of buoyancy? of the pipe (1) it is foreseen that the same can be equipped with floating devices (11) of known type. In the embodiment that is being described, shown as an example in figure 5, the possibility is envisaged that the pump (9), referred to in the flow motion efficiency device (6), is engaged in a floating device (11), which in the example described is positioned between the sampling duct ( 7) and the inlet duct (8). In any case, it is envisaged that the pump (9) and the other components of the flow motion efficiency device (6) are structured and located according to the known technique which allows their actuation to perform the function of the invention .

[0032] A possible variant of the invention, as represented by way of example in the representations in figures 10 to 12, provides for the possibility that the pipe (1) of the invention constitutes part of a floating pontoon (12) structured in a known way, said floating pontoon (12) comprising load-bearing elements (13), suitably and in a known way structured to be suitable for supporting in engagement of the pipe (1), and of the floating bodies (14) which latter are placed at the side of the pipe (1). In greater detail, as particularly represented in figures from 10 to 12, the floating pontoon (12) provides that the load-bearing elements (13), in the example made of metal, are arranged parallel to each other and shaped, in accordance with as shown in figures from 10 to 12, so as to include a central portion (131) shaped like a ?V?, intended to support the tube body (2) of the pipe (1), from which central portion (131) a first lateral wing (132) and a second lateral wing (133) branch off, opposite and specular to the other, each of which lateral wings (132, 133) suitably supports a pair of floating bodies (14) in anchorage of known type and suitable for ensuring the floating of the floating pontoon (12) itself. In the example of embodiment that is further described, it is envisaged that said load-bearing elements (13) support in engagement a grating panel (15) which, as represented in figure 12, is envisaged with an area such as to cover at least the bearing elements (13) and the floating bodies (14). The structure of the floating pontoon (12) ? implemented in such a way as to allow the appropriate anchoring of the pump (9) and of the fittings which connect the withdrawal duct (7) and the inlet duct (8) of the pipe (1). Furthermore, it is foreseen that in order to feed the pump (9), which is moved by an electric motor, the floating pontoon (12) ? equipped with a device for generating electricity from a renewable source (16), particularly, in the example of embodiment which is described from a wind turbine of the vertical axis type, further providing that said floating pontoon (12) can also be equipped of at least one accumulator device (17) of known type for storing the energy generated by the device for generating electricity from renewable sources (16), the floating pontoon (12) itself being equipped with known control devices (19) for activation, command and control of the pump (9) and of the device for generating electricity from renewable sources (16), wherein said command devices (19) can also be of the wireless type. In the embodiment that is being described, it is envisaged that the pipe (1) can also be equipped with known monitoring devices (18) of the functional parameters? of the pipe (1) and of the flow transported, in particular it is foreseen that the pipe (1) can be equipped with monitoring devices (18) for detecting at least the parameters of pressure, abrasion, and temperature.

[0033] The solution object of the invention lends itself to creating a line of pipes (1), in a known way, contiguously joined to each other, said line of pipes, in dredging operations, being placed at the service of a dredger of known type. More in detail about the possibilities? offered by the solution according to the present invention, is the possibility foreseen? that the line of pipes (1) can be formed by all the pipes (1) of the present invention, each of them being equipped with a flow motion efficiency device (6) of the invention, or the said line of pipes (1) being able to be realized partly comprising pipes (1) of known type and partly pipes (1) equipped with the flow motion efficiency device (6) of the present invention. Furthermore, is the possibility foreseen? to create a line of pipes (1) comprising, in whole or in part, pipes equipped with a flow motion efficiency device (6), which line of pipes (1) is envisaged, as particularly represented in figure 13, can be equipped with at least one pipe (1) exclusively set up with monitoring devices (18) capable of detecting at least the pressure, abrasion and temperature parameters and in which said monitoring devices (18) are of the wireless type whose data can be managed remotely by known type of processing devices such as, for example, a computer, a tablet, etc. The arrangement of a pipeline line (1) comprising pipelines (1) equipped with a flow motion efficiency device (6) and monitoring devices (18), some of which are arranged to detect at least the pressure, abrasion and temperature along the pipeline line (1) and others are arranged to monitor the operation and the level of electricity production of the devices for generating electricity from renewable sources (16) which equip the pipeline line (1) for the The supply of at least the pumps (9) referred to in the pipes (1) equipped with a flow motion efficiency device (6), makes it possible to optimize the management of the overall material transport operations in the pipe line (1). Pi? in detail, the monitoring of the parameters detected by the foreseen monitoring devices (18) supplied with the piping line (1) and their remote management allows to determine in real time the needs? of operation of the dredge in such a way as to be able to calibrate the working power on the basis of the actual needs? of the piping line (1) also given by the energy produced by the devices for generating electricity from renewable sources (16) and by the energy consumed by the pump motors (9) referred to in the flow motion efficiency devices (6 ).

LEGEND

(1) tubing

(2) tube body

(21) outer wall

(22) inner wall

(3) protruding edge

(4) flange

(41) through holes

(5) steel bolts

(6) flow motion efficiency device

(7) sampling duct

(8) inlet duct

(9) pump

(10) shaped flap

(11) floating device

(12) floating pontoon

(13) load-bearing elements

(131) central portion

(132) first lateral wing

(133) second lateral wing

(14) floating bodies

(15) grating panel

(16) device for generating electricity from renewable sources (17) accumulator device

(18) monitoring devices

(19) control devices

Claims (10)

1. Pipe (1) for the transport of pressurized fluids equipped with devices for making the flow of the material transported more efficient, comprising an axially hollow pipe body (2) and in which said pipe (1) is ? adapted to be part of a line of pipes (1) characterized in that the body of the pipe (2) is equipped with at least one withdrawal duct (7) and at least one input duct (8), in which both the withdrawal duct (7) and the input duct (8) are in communication with the cavity? of the tube body (2) and in which the withdrawal duct (7) and the inlet duct (8) are connected to at least one pump (9) capable of allowing at least the withdrawal, by means of the withdrawal duct (7), of part of the fluid flowing in the pipe body (2) of the pipe (1) and, by means of the inlet pipe (8), at least the return into the pipe body (2) of the pipe (1) of the fluid withdrawn through the pipe (7), where the withdrawal duct (7), the inlet duct (8) and the pump (9), connecting the sampling duct (7) to the inlet duct (8), constitute an efficiency-enhancing device of the motion of the flow (6) of the material transported in the pipe (1). 2. Pipe (1) for the transport of pressurized fluids equipped with devices for streamlining the flow of the material being transported according to the previous claim, characterized in that the withdrawal duct (7) is positioned at least in correspondence with the upper part of the body tube (2) when the tube (1) ? positioned in operating condition, while the inlet duct (8) is positioned in correspondence with the portion of the pipe body (2) coinciding with or close to the lower part of the same pipe body (2) when the pipe (1) is? positioned in operating condition, where the inlet duct (8) is located downstream of the withdrawal duct (7) considering the direction of flow of the material transported in the pipe (1). 3. Pipe (1) for transporting pressurized fluids equipped with devices for making the flow of the material transported more efficient according to at least one of the preceding claims, characterized in that both the withdrawal duct (7) and the inlet duct (8 ) are inclined relative to the longitudinal axis of the pipe body (2) and are oriented in the direction of flow of the flow of the material transported inside the pipe (1). 4. Pipe (1) for the transport of pressurized fluids equipped with devices for streamlining the flow of the material being transported according to at least one of the preceding claims, characterized in that the internal caliber of the sampling duct (7) is ? greater than the internal caliber of the inlet duct (8). 5. Pipeline (1) for the transport of pressurized fluids equipped with devices for streamlining the flow of the material being transported according to at least one of the preceding claims, characterized in that the degree of inclination of the inlet duct (8) relative to the axis of the tube body (2) ? between 10? and 30? and the degree of inclination of the withdrawal duct (7) relative to the axis of the tube body (2)? between 5? and 20?. 6. Pipe (1) for the transport of pressurized fluids equipped with devices for streamlining the flow of the material being transported according to at least one of the preceding claims, characterized in that the pipe body (2) is ? made of synthetic material and comprises at least one external wall (21) made of thermoplastic material and at least one internal wall (22), coaxial to the external wall (21), in which the internal wall (22) of the tube body (2) is formed by a mixture comprising, in a percentage between 60% and 70%, thermoplastic elastomers of at least one of the following types: TPE; TPUs; TPO mixed with a percentage between 30% and 40% of polyethylene of at least one of the following types: HDPE; MDPE; LDPE; LLDPE. 7. Pipe (1) for transporting pressurized fluids equipped with devices for streamlining the flow of the material being transported according to at least one of the preceding claims, characterized in that the pipe body (2) is ? internally provided with radially arranged and oblique shaped fins (10) relative to the median plane of the tube body (2), in which said shaped fins (10) are able to cause a perturbation of the flow of the material being conveyed. 8. Pipe (1) for transporting pressurized fluids equipped with devices for streamlining the flow of the material being transported according to at least one of the preceding claims, characterized in that the pump (9) ? moved by at least one electric motor powered by at least one device for generating electricity from renewable sources (16) and the pump (9) and the device for generating electricity from renewable sources (16) can be controlled and monitored remotely. 9. Pipeline (1) for the transport of pressurized fluids equipped with flow motion efficiency devices according to at least one of the preceding claims, characterized in that at least one pipe (1) equipped with a flow motion efficiency device (6) ? part of a floating pontoon (12) comprising bearing elements (13) supported by at least one floating body (14) and the floating pontoon (12) ? equipped with at least one device for generating electricity from renewable sources (16). 10. Piping line (1) for the transport of pressurized fluids characterized in that at least one pipe (1) of the piping line (1) comprises at least one pipe (1) equipped with a flow motion efficiency device (6 ) and at least one pipe (1) of the pipe line (1) ? equipped with at least wireless monitoring devices (18) for monitoring at least pressure, abrasion and temperature parameters.