CN113217821B - Liquid material conveying system for producing Chinese herbal medicine toothpaste - Google Patents
Liquid material conveying system for producing Chinese herbal medicine toothpaste Download PDFInfo
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- CN113217821B CN113217821B CN202110777079.9A CN202110777079A CN113217821B CN 113217821 B CN113217821 B CN 113217821B CN 202110777079 A CN202110777079 A CN 202110777079A CN 113217821 B CN113217821 B CN 113217821B
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- heating
- conveying pipeline
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- pipeline
- turbulence
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
- F17D1/18—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
- F15D1/06—Influencing flow of fluids in pipes or conduits by influencing the boundary layer
- F15D1/065—Whereby an element is dispersed in a pipe over the whole length or whereby several elements are regularly distributed in a pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/32—Heating of pipes or pipe systems using hot fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/20—Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves
Abstract
The invention discloses a liquid material conveying system for producing Chinese herbal medicine toothpaste, which comprises: the conveying pipeline is internally provided with a cavity for conveying the liquid raw material; the mounting rack is used for fixedly mounting the conveying pipeline and enabling the conveying pipeline to be in a suspended state; the heating assembly is arranged on the surface wall of the conveying pipeline and used for heating the surface wall of the conveying pipeline; the mounting bracket includes bottom plate and a plurality of solid fixed ring, and is a plurality of gu fixed ring equidistant fixed cover connect in pipeline is last, and will pipeline separates for a plurality of transport sections. The surface of the conveying pipeline is heated through the heating assembly, so that the whole conveying pipeline has certain heat, the heat is absorbed by the liquid raw material inside the conveying pipeline, and then the liquid raw material is continuously heated in the conveying process, so that the temperature of the liquid raw material cannot be reduced, and the liquid raw material is not easy to condense in the whole conveying process.
Description
Technical Field
The invention belongs to the technical field of Chinese herbal medicine toothpaste production, and particularly relates to a liquid material conveying system for producing Chinese herbal medicine toothpaste.
Background
In the production process of the Chinese herbal medicine toothpaste, a corresponding conveying system is required to convey the liquid raw materials.
However, since the liquid raw material of the toothpaste has a certain viscosity and the pipeline in the conveying system is long, the liquid raw material is easy to condense and adhere to the inner wall of the conveying pipeline, so that the conveying pipeline is blocked, and the liquid raw material of the toothpaste needs to be heated to avoid condensation.
In the prior art, the raw materials are generally heated before entering a pipeline, so that the liquid raw materials have certain temperature; however, the conveying pipeline is long, and the temperature of the liquid raw material is lower and lower along with the conveying process, so that the liquid raw material is easy to condense at the tail end of the conveying pipeline; if the feedstock is heated to a higher temperature in the initial stage to counter the loss of heat from the feedstock, the initial stage temperature is too high and tends to destroy the properties of the feedstock.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a liquid material conveying system for producing Chinese herbal medicine toothpaste.
The invention provides a liquid material conveying system for producing Chinese herbal medicine toothpaste, which comprises:
the conveying pipeline is internally provided with a cavity for conveying the liquid raw material;
the mounting rack is used for fixedly mounting the conveying pipeline and enabling the conveying pipeline to be in a suspended state;
and the heating assembly is arranged on the surface wall of the conveying pipeline and used for heating the surface wall of the conveying pipeline.
Preferably, the mounting bracket includes bottom plate and a plurality of solid fixed ring, and is a plurality of gu fixed ring equidistant fixed connect in pipeline is last, and will pipeline separates for a plurality of transport sections, gu fixed ring pass through the stand fixed set up in the bottom plate top.
Preferably, the heating assembly is the multiunit, and the multiunit the heating assembly with a plurality of carry the section one-to-one, the heating assembly includes heating ring and drive structure, the heating ring slidable cup joint in on the pipeline, the drive structure is used for driving about the heating ring is followed pipeline's axial reciprocating sliding.
Preferably, the driving structure comprises an installation block, a driving piece, a reciprocating screw rod and a connecting plate, wherein the installation block is fixedly arranged on the upper side of the fixing ring, the reciprocating screw rod is rotatably arranged between the two installation blocks and is parallel to the conveying pipeline, the driving piece is fixedly arranged on the installation block and is used for driving the reciprocating screw rod to rotate around the axis of the reciprocating screw rod, the connecting plate is fixedly arranged on the upper side of the heating ring, and the connecting plate is sleeved on the reciprocating screw rod in a threaded manner.
Preferably, the driving structure further comprises a guide rail, the guide rail is fixedly arranged between the two mounting blocks and is parallel to the reciprocating screw rod, and the side wall of the connecting plate is connected with the guide rail in a sliding manner.
Preferably, still be provided with the vortex subassembly in the pipeline, the vortex subassembly can carry out the vortex to liquid raw materials.
Preferably, the vortex subassembly is the multiunit, and equidistant distribution in the pipeline, the vortex subassembly includes slide bar and vortex piece, the slide bar perpendicular and fixed set up in the pipeline, the vortex piece slide dispose in on the slide bar, the inside first magnet that inlays of heating ring downside, the second magnet is located in the vortex piece is embedded, the one end magnetic pole that first magnet and second magnet are close to each other is opposite.
Preferably, the slide bar extends along the radial direction of the conveying pipeline, the whole turbulent flow block is of a diamond structure, and each side edge is an inwards-concave arc surface.
Preferably, the heating assembly further comprises a heater and a pair of heating pipelines, the heater is fixedly arranged on the bottom plate, a heating cavity is arranged in the heating ring, the heating cavity is communicated with the heater through the two heating pipelines, the heating cavity, the two heating pipelines and the heater form a closed loop, a fluid medium is filled in the closed loop, and the fluid medium can circulate in the closed loop.
Preferably, the connecting plate with heating ring structure as an organic whole, just the connecting plate middle part is provided with the installing port, adjacent two still the fixed dead lever that is provided with between the installation piece, the dead lever with reciprocal lead screw is parallel, and runs through the installing port, set up on the diapire of installing port with the spread groove of heating chamber intercommunication, the notch of spread groove passes through the elastic layer and realizes sealed, the elastic layer inlays and is equipped with the third magnet, equidistant distribution has a plurality of fourth magnets, two in the dead lever all be provided with the check valve in the heating tube way, make closed loop only has single access to.
Compared with the prior art, the invention has the beneficial effects that:
1. the surface of the conveying pipeline is heated through the heating assembly, so that the whole conveying pipeline has certain heat which is absorbed by the liquid raw material in the conveying pipeline, and the liquid raw material is continuously heated in the conveying process so as not to reduce the temperature of the liquid raw material, and the liquid raw material is difficult to condense in the whole conveying process;
2. the liquid raw material is disturbed by the arrangement of the disturbing flow component, so that the liquid raw material can be heated more uniformly, and the situation that the liquid raw material in the middle is not heated enough is avoided;
3. in the process that the turbulence block moves up and down, the arc surface has the effect of pushing the middle liquid raw material to two sides, so that the middle raw material and the outer raw material are exchanged, and the middle raw material and the outer raw material can alternately contact with the inner wall of the conveying pipeline, and finally the effect of uniform heating is achieved.
Drawings
FIG. 1 is a schematic perspective view of a fluid material delivery system for producing a herbal dentifrice according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a schematic cross-sectional view of a liquid material delivery system for producing a herbal toothpaste in accordance with the present invention;
FIG. 4 is a schematic view of the structure of the baffle of the fluid delivery system for producing herbal toothpaste according to the present invention.
In the figure: the device comprises a base plate 1, a conveying pipeline 2, a fixing ring 3, a vertical column 4, a heating ring 5, a mounting block 6, a driving piece 7, a reciprocating screw rod 8, a connecting plate 9, a guide rail 10, a heating pipeline 11, a heater 12, a fixing rod 13, a mounting opening 14, a heating cavity 15, an elastic layer 16, a first magnet 17, a sliding rod 18, a flow disturbing block 19 and a circular arc surface 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a liquid material delivery system for producing a herbal toothpaste, comprising:
a conveying pipeline 2, wherein a cavity channel for conveying liquid raw materials is formed inside the conveying pipeline 2;
the mounting frame is used for fixedly mounting the conveying pipeline 2 and enabling the conveying pipeline 2 to be in a suspended state;
and the heating assembly is arranged on the surface wall of the conveying pipeline 2 and used for heating the surface wall of the conveying pipeline 2.
Use above-mentioned technical scheme's embodiment, install pipeline 2 for carrying liquid raw materials through setting up the mounting bracket, and make it be in unsettled state, thereby can be at pipeline 2's table wall installation heating element, heat pipeline 2's surface through heating element, thereby make whole pipeline 2 have certain heat, this heat is absorbed by its inside liquid raw materials, and then liquid raw materials is at the in-process of carrying, continuously by the heating, so that self temperature can not descend, thereby in whole transportation, liquid raw materials is all difficult for producing the condensation.
According to the preferable technical scheme in the embodiment, the mounting frame comprises a bottom plate 1 and a plurality of fixing rings 3, the fixing rings 3 are fixedly sleeved on the conveying pipeline 2 at equal intervals and divide the conveying pipeline 2 into a plurality of conveying sections, and the fixing rings 3 are fixedly arranged above the bottom plate 1 through upright posts 4; in the specific embodiment, the upright column 4 has a certain length, so that the conveying pipeline 2 is positioned above the bottom plate 1, only a small part of the surface wall of the conveying pipeline 2 is in contact with the fixing ring 3, and the whole conveying pipeline is in a suspended state.
According to the preferable technical scheme in the embodiment, the heating assemblies are in multiple groups, the multiple groups of heating assemblies correspond to the multiple conveying sections one by one, each heating assembly comprises a heating ring 5 and a driving structure, the heating ring 5 is slidably sleeved on the conveying pipeline 2, and the driving structure is used for driving the heating ring 5 to slide in a reciprocating manner along the axial direction of the conveying pipeline 2; in specific this implementation, cup joint on pipeline 2 through setting up heating ring 5 and heat it, then drive heating ring 5 through drive structure and follow pipeline 2's axial reciprocating sliding to a heating ring 5 can carry out even heating to one end conveying section.
In the preferred technical scheme of the embodiment, the driving structure comprises mounting blocks 6, driving pieces 7, a reciprocating screw rod 8 and a connecting plate 9, the mounting blocks 6 are fixedly arranged on the upper side of the fixing ring 3, the reciprocating screw rod 8 is rotatably arranged between the two mounting blocks 6 and is parallel to the conveying pipeline 2, the driving pieces 7 are fixedly arranged on the mounting blocks 6 and are used for driving the reciprocating screw rod 8 to rotate around the axis of the driving pieces, and the connecting plate 9 is fixedly arranged on the upper side of the heating ring 5 and is sleeved on the reciprocating screw rod 8 in a threaded manner; in a specific embodiment, the driving member 7 drives the reciprocating screw rod 8 to rotate, so that the connecting plate 9 is axially reciprocated along the conveying pipeline 2 by screw-thread fit, and further drives the heating ring 5 to slide on the conveying pipeline 2 in a reciprocating manner, wherein the driving member 7 is a driving motor.
In the preferred technical scheme of the embodiment, the driving structure further comprises a guide rail 10, the guide rail 10 is fixedly arranged between the two mounting blocks 6 and is parallel to the reciprocating screw rod 8, and the side wall of the connecting plate 9 is in sliding connection with the guide rail 10; in the present embodiment, the guide rail 10 is provided to make the sliding of the connection plate 9 more stable.
According to the preferable technical scheme in the embodiment, a turbulence component is further arranged in the conveying pipeline 2, and can perform turbulence on the liquid raw material; flow disturbance is carried out to liquid raw materials through setting up the vortex subassembly to it can be heated more evenly to make liquid raw materials, avoids the liquid raw materials in middle part to be heated the not enough condition emergence.
In the preferred technical scheme of the embodiment, the turbulence components are multiple groups and are distributed in the conveying pipeline 2 at equal intervals, each turbulence component comprises a sliding rod 18 and a turbulence block 19, the sliding rods 18 are vertically and fixedly arranged in the conveying pipeline 2, the turbulence blocks 19 are arranged on the sliding rods 18 in a sliding manner, a first magnet 17 is embedded in the lower side of the heating ring 5, a second magnet is embedded in the turbulence blocks 19, and the magnetic poles of the ends, close to each other, of the first magnet 17 and the second magnet are opposite; in specific this embodiment, at the in-process that heating ring 5 reciprocated sliding, when it is close to one of them vortex subassembly, because two magnets are close to each other, then the second magnet receives the repulsion and upwards slides, keeps away from the back when heating ring 5, then because self gravity whereabouts, vortex block 19's lift then can arouse the vortex effect for liquid raw materials is heated more evenly.
In the preferred technical scheme in this embodiment, the slide rod 18 extends along the radial direction of the conveying pipeline 2, the spoiler 19 is integrally of a diamond structure, and each side edge is an inwardly recessed arc surface 20; in the specific embodiment, by adopting the spoiler 19 with the shape, in the process that the spoiler 19 moves up and down, the arc surface 20 has the function of pushing the middle liquid raw material to both sides, so that the middle raw material and the outer raw material are exchanged, and can alternately contact with the inner wall of the conveying pipeline 2, and finally reach the effect of uniform heating.
In the preferred technical solution of this embodiment, the heating assembly further includes a heater 12 and a pair of heating conduits 11, the heater 12 is fixedly disposed on the bottom plate 1, a heating cavity 15 is disposed in the heating ring 5, the heating cavity 15 is communicated with the heater 12 through the two heating conduits 11, the heating cavity 15, the two heating conduits 11 and the heater 12 form a closed loop, a fluid medium is filled in the closed loop, and the fluid medium can circulate in the closed loop; in the specific embodiment, by providing the closed loop, the fluid medium heated by the heater 12 flows to the heating cavity 15, and the fluid medium losing heat in the heating cavity 15 flows back to the heater 12 for heating, so as to ensure that the temperature of the heating ring 5 is continuously stable, wherein the heating pipeline 11 is made of a hose to adapt to the mobility of the heating ring 5.
In the optional technical scheme in this embodiment, the connecting plate 9 and the heating ring 5 are of an integral structure, the middle of the connecting plate 9 is provided with an installation port 14, a fixed rod 13 is fixedly arranged between two adjacent installation blocks 6, the fixed rod 13 is parallel to the reciprocating screw rod 8 and penetrates through the installation port 14, a connecting groove communicated with the heating cavity 15 is formed in the bottom wall of the installation port 14, the notch of the connecting groove is sealed through an elastic layer 16, a third magnet is embedded in the elastic layer 16, a plurality of fourth magnets are distributed in the fixed rod 13 at equal intervals, and one-way valves are arranged in the two heating pipelines 11, so that a closed loop only has a single access; in the specific embodiment, during the moving process of the heating ring 5, the distance between the third magnet and the fourth magnet fluctuates and thus the acting force applied to the third magnet fluctuates, the acting force cooperates with the elasticity of the elastic layer 16, so that the third magnet fluctuates and thus stretches the elastic layer 16 to cause the hydraulic pressure in the heating cavity 15 to change, so that the fluid medium circulates in the closed loop, and further, an additional power device is not required to drive the fluid medium to circulate, wherein the elastic layer 16 is made of a rubber material.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A liquid material delivery system for producing a herbal toothpaste, comprising:
the conveying pipeline (2), a cavity channel for conveying liquid raw materials is formed inside the conveying pipeline (2);
the mounting rack is used for fixedly mounting the conveying pipeline (2) and enabling the conveying pipeline (2) to be in a suspended state;
the heating assembly is arranged on the surface wall of the conveying pipeline (2) and used for heating the surface wall of the conveying pipeline (2);
the mounting rack comprises a bottom plate (1) and a plurality of fixing rings (3), the fixing rings (3) are fixedly sleeved on the conveying pipeline (2) at equal intervals and divide the conveying pipeline (2) into a plurality of conveying sections, and the fixing rings (3) are fixedly arranged above the bottom plate (1) through upright posts (4);
the heating assemblies are in multiple groups, the multiple groups of heating assemblies correspond to the conveying sections one by one, each heating assembly comprises a heating ring (5) and a driving structure, the heating rings (5) are slidably sleeved on the conveying pipeline (2), and the driving structure is used for driving the heating rings (5) to slide in a reciprocating manner along the axial direction of the conveying pipeline (2);
the driving structure comprises mounting blocks (6), a driving piece (7), a reciprocating screw rod (8) and a connecting plate (9), the mounting blocks (6) are fixedly arranged on the upper side of the fixing ring (3), the reciprocating screw rod (8) is rotatably arranged between the two mounting blocks (6) and is parallel to the conveying pipeline (2), the driving piece (7) is fixedly arranged on the mounting blocks (6) and is used for driving the reciprocating screw rod (8) to rotate around the axis of the reciprocating screw rod, and the connecting plate (9) is fixedly arranged on the upper side of the heating ring (5) and is sleeved on the reciprocating screw rod (8) in a threaded manner;
the heating assembly further comprises a heater (12) and a pair of heating pipelines (11), the heater (12) is fixedly arranged on the bottom plate (1), a heating cavity (15) is arranged in the heating ring (5), the heating cavity (15) is communicated with the heater (12) through the two heating pipelines (11), the heating cavity (15), the two heating pipelines (11) and the heater (12) form a closed loop, and a fluid medium is filled in the closed loop and can circulate in the closed loop;
connecting plate (9) with heating ring (5) structure as an organic whole, just connecting plate (9) middle part is provided with installing port (14), adjacent two still the fixed dead lever (13) that is provided with between installation piece (6), dead lever (13) with reciprocal lead screw (8) are parallel, and run through installing port (14), set up on the diapire of installing port (14) with the spread groove of heating chamber (15) intercommunication, the notch of spread groove passes through elastic layer (16) and realizes sealing, the embedded third magnet that is equipped with in elastic layer (16), equidistant distribution has a plurality of fourth magnets, two in dead lever (13) all be provided with the check valve in heating pipeline (11), make closed circuit only has single access to.
2. The system for conveying liquid materials for producing Chinese herbal medicine toothpaste as claimed in claim 1, wherein said driving structure further comprises a guide rail (10), said guide rail (10) is fixedly arranged between two of said mounting blocks (6) and is parallel to said reciprocating screw rod (8), and the side wall of said connecting plate (9) is slidably connected with said guide rail (10).
3. The system for delivering liquid materials for producing herbal toothpastes of claim 1, wherein a turbulence member is further provided in the delivery pipe (2), and the turbulence member can disturb the liquid materials.
4. The liquid material conveying system for producing Chinese herbal medicine toothpaste as claimed in claim 3, wherein the turbulence components are multiple groups and are distributed in the conveying pipeline (2) at equal intervals, each turbulence component comprises a sliding rod (18) and a turbulence block (19), the sliding rods (18) are vertically and fixedly arranged in the conveying pipeline (2), the turbulence blocks (19) are arranged on the sliding rods (18) in a sliding manner, a first magnet (17) is embedded in the lower side of the heating ring (5), a second magnet is embedded in the turbulence blocks (19), and the magnetic poles of the ends, close to each other, of the first magnet (17) and the second magnet are opposite.
5. The system for conveying liquid materials for the production of Chinese herbal medicine toothpaste as claimed in claim 4, wherein said slide bar (18) extends radially along said conveying pipe (2), said turbulence block (19) is of a diamond structure as a whole, and each side is an inwardly concave circular arc surface (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110777079.9A CN113217821B (en) | 2021-07-09 | 2021-07-09 | Liquid material conveying system for producing Chinese herbal medicine toothpaste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110777079.9A CN113217821B (en) | 2021-07-09 | 2021-07-09 | Liquid material conveying system for producing Chinese herbal medicine toothpaste |
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| CN113217821A CN113217821A (en) | 2021-08-06 |
| CN113217821B true CN113217821B (en) | 2021-09-07 |
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| CN202110777079.9A Active CN113217821B (en) | 2021-07-09 | 2021-07-09 | Liquid material conveying system for producing Chinese herbal medicine toothpaste |
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| CN114161765A (en) * | 2021-11-24 | 2022-03-11 | 张家港今日精锻有限公司 | Double-interlayer suspensible adjustable protective outer diameter cover die |
| CN114484283B (en) * | 2022-02-08 | 2023-01-24 | 东北大学 | External microwave heating pipe blockage treatment device and method for paste conveying pipeline |
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| CN201149116Y (en) * | 2008-01-11 | 2008-11-12 | 蔡志广 | Liquid flow automatic regulating valve |
| CN101968153A (en) * | 2010-10-13 | 2011-02-09 | 苏州康斯坦普工程塑料有限公司 | Liquid conveying and heating pipe |
| CN103573760B (en) * | 2013-10-15 | 2015-08-05 | 西安交通大学 | A kind of application machine principle of being jammed realizes the device of incompressible fluid critical flow |
| CN204240059U (en) * | 2014-11-19 | 2015-04-01 | 周福 | Heating equipment in a kind of petroleum transportation pipeline |
| FR3050356B1 (en) * | 2016-04-18 | 2018-05-04 | Saipem S.A. | ELECTRICAL INSTALLATION FOR ELECTRICAL HEATING SYSTEM BY TRACING A METAL FLUID TRANSPORT PIPE AND ELECTRICAL HEATING METHOD BY TRACING SUCH A CONDUCT |
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