CN114484100A

CN114484100A - Marine oil delivery hose with double protection frameworks and preparation method thereof

Info

Publication number: CN114484100A
Application number: CN202210236847.4A
Authority: CN
Inventors: 李有安; 李忠利; 冯丽君; 焦洪亮; 许荣娟; 彭鑫鑫
Original assignee: Hebei Zebang Plastic Technology Co ltd
Current assignee: Hebei Zebang Plastic Technology Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-05-13

Abstract

The invention provides a marine oil hose with a double-protection framework and a preparation method thereof, wherein the marine oil hose comprises a hose body, flange connecting pieces arranged on the inner side of the hose body, sealing assemblies arranged between single flange connecting pieces, a third sealing ring positioned on the inner side of the sealing assemblies, and fastening bolts used for connecting and fixing the single flange connecting pieces, wherein the hose body comprises a first oil-resistant inner rubber layer; the flange connecting piece comprises a flange pipe, a compensating ring arranged on the inner side of the flange pipe and a first sealing ring which is arranged on the outer side of the compensating ring, clamped in the flange pipe and used for sealing, and fastening bolts are connected between single bodies of the flange connecting piece; the auxiliary framework sleeve is arranged on the outer side of the flange connecting piece and is arranged at the left end and the right end of the pipe body, and an oil leakage observation system is arranged on the inner side of the auxiliary framework sleeve. This ocean oil hose has solved among the prior art ocean and has floated oil hose and easily reveal, the relatively poor problem of security performance.

Description

Marine oil delivery hose with double protection frameworks and preparation method thereof

Technical Field

The invention relates to the technical field related to marine oil transportation, in particular to a marine oil transportation hose with double protection frameworks and a preparation method thereof.

Background

In recent years, the development of the field of ocean oil and gas exploitation is rapid, and the ocean oil and gas pipeline is required to be connected in a closed mode through an oil pipeline hose to continuously output rich oil and gas on the seabed, wherein the ocean oil pipeline hose is a key device for outputting ocean oil and gas at present.

The floating oil transportation hose in the ocean carries out oil transportation operation on the sea surface all the year round, and is very easy to be corroded by sea wind, waves, ocean currents, seawater and the like to cause the accident of crude oil leakage of the pipe body. Once toxic compounds of benzene and toluene contained in crude oil are leaked, the crude oil can quickly pollute the marine environment and cause catastrophic damage to the marine environment and marine organisms. Secondly, the collection work difficulty of the crude oil is large, and the processing cost of the collection time is high. Third, a crude oil leak will cause a complete stop of the oil transportation. And fourthly, the replacement of the oil delivery hose requires the simultaneous construction operation of a crane, an engineering ship, a large number of workers and divers, the construction process needs high cooperation, the construction difficulty is high, and the construction cost is high.

For the reasons, it is necessary to develop a double-skeleton marine oil hose with pollution prevention, leakage prevention and high safety.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a marine oil delivery hose with a double-protection framework and a preparation method thereof, and solves the problems that the marine floating oil delivery hose in the prior art is easy to leak and has poor safety performance.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

the marine oil hose with double protecting skeleton includes one hose body, one flange connecting part inside the hose body, one sealing assembly between the flange connecting parts, one third sealing ring inside the sealing assembly, one fastening bolt for connecting the flange connecting parts, one pull-out preventing ring for positioning the hose body,

the pipe body comprises a first oil-resistant inner rubber layer, a first cord bearing layer and a steel reinforcement framework reinforcing layer, wherein the first cord bearing layer is arranged on the outer side of the first oil-resistant inner rubber layer, the steel reinforcement framework reinforcing layer is arranged on the outer side of the first cord bearing layer, a steel wire reinforcing layer for increasing the installation strength penetrates through the inner side of the steel reinforcement framework reinforcing layer, a second cord bearing layer is arranged on the outer side of the steel reinforcement framework reinforcing layer, a first oil-resistant outer rubber layer is arranged on the outer side of the second cord bearing layer, and a spacing layer is arranged on the outer side of the first oil-resistant outer rubber layer;

the flange connecting piece comprises a flange pipe, a compensating ring arranged on the inner side of the flange pipe and a first sealing ring which is arranged on the outer side of the compensating ring, clamped in the flange pipe and used for sealing, fastening bolts are connected between single bodies of the flange connecting piece, and anti-pulling-off rings are arranged on the outer sides of the fastening bolts;

the sealing assembly comprises a limiting ring, a limiting block and a second sealing ring, wherein the limiting block is arranged on the inner side of the limiting ring, the second sealing ring is arranged on the outer side of the limiting ring, and a third sealing ring is attached to the inner end of the limiting block;

the auxiliary framework sleeve is arranged on the outer side of the flange connecting piece and is arranged at the left end and the right end of the pipe body, an oil leakage observation system is arranged on the inner side of the auxiliary framework sleeve, and the inner side of the auxiliary framework sleeve is communicated with the inner side of the spacing layer.

In a possible implementation mode, the body is still including setting up in the second in the wall layer outside glue film, and the outside on glue film in the second installs third cord pressure bearing layer, the outer glue film of second is installed in the outside on third cord pressure bearing layer, and the outside on the outer glue film of second is provided with and is used for showy layer, the outside on showy layer is provided with fourth cord pressure bearing layer, and the outside on fourth cord pressure bearing layer is provided with the outer glue film of third.

In a possible implementation mode, the equal-angle arrangement between the single flange pipes is provided with a fastening bolt for connecting and fixing the flange pipes, the inner sides of the flange pipes are provided with groove-shaped structures for mounting the sealing assembly and the third sealing ring, and the longitudinal sections of the groove-shaped structures for mounting the third sealing ring are trapezoidal.

In a possible implementation manner, the longitudinal section of the compensation ring is trapezoidal, one end of the compensation ring is fixedly welded with the flange pipe, and the outer side of the compensation ring is attached to the flange pipe on the other side.

In a possible implementation mode, the limiting ring is elastically connected with the flange pipe through a spring, the longitudinal section of the limiting ring is trapezoidal, a groove-shaped structure is arranged on the inner side of the limiting ring, the longitudinal section of the groove-shaped structure is trapezoidal, a limiting block with a T-shaped longitudinal section is arranged in the groove-shaped structure, and the limiting block, the flange pipe and the limiting ring are connected in a sliding mode.

In a possible implementation manner, the limiting blocks are arranged at equal angles with respect to the center of the third sealing ring.

In a possible implementation manner, the anti-pulling and anti-dropping rings are uniformly arranged on the outer side of the flange pipe, and the anti-pulling and anti-dropping rings are wrapped by the pipe body.

In a possible implementation manner, the oil leakage observation system comprises a mechanical oil leakage detection device, an electronic tuning fork detection sensor additionally arranged, a wireless transmitting and receiving module, an industrial personal computer, peripheral circuits such as a PLC (programmable logic controller) and a cable used for connection.

In one possible implementation manner, the winding step between the first oil-resistant inner rubber layer and the flanged pipe includes: take a pipe body with an inner diameter of 400mm as an example;

the method comprises the following steps:

selecting a tube core with the inner diameter of 400mm, polishing and derusting the tube core, and then coating a separant;

step two:

installing a flange pipe at the two ends of the pipe core and fixing the pipe core on the pipe core;

step three:

and winding a first oil-resistant inner rubber layer with the thickness of 1mm and the width of 100mm on the flange pipe and the pipe core, wherein the winding thickness is 4 mm.

In one possible implementation manner, the raw material composition and preparation method required by the pipe body include:

the first oil-resistant inner rubber layer is made of the following materials: oil-resistant nitrile rubber, the weight portion is 50: 70; the filling reinforcing agent is carbon black N330, and the weight ratio is 10: 20; the plasticizer is dioctyl ester, and the weight ratio is 5: 10; the activator is magnesium oxide, and the weight ratio of the activator is 1: 3; the weight part ratio of the anti-aging agent is 0.5: 1;

the first cord bearing layer, the second cord bearing layer, the third cord bearing layer and the fourth cord bearing layer are made of the following materials: a terylene or chinlon rubberized fabric;

the reinforcing steel bar framework reinforcing layer is composed of the following materials: the nitrile butadiene rubber and the chloroprene rubber have the weight ratio of 20: 30, of a nitrogen-containing gas; the reinforcing agent is carbon black N774, and the weight ratio is 5: 10; the plasticizer is iron oxide red, the weight portion of phenolic resin is 0.5: 2; cutting into narrow adhesive tapes to be filled in gaps among the spiral steel wires;

the first oil-resistant outer rubber layer and the third outer rubber layer are made of the following materials: butadiene, chloroprene and styrene butadiene rubber, the weight ratio is 30: 40; the reinforcing agent is carbon black N330, and the weight portion ratio is 10: 15, the first oil-resistant outer rubber layer and the third outer rubber layer have the characteristics of aging resistance, wear resistance, illumination resistance and salt mist resistance;

the floating layer is mainly an HDPE plate (high density polyethylene plate) with the melting point of about 130 ℃ and the relative density of 0.941-0.960;

the method comprises the following steps:

winding a first cord thread bearing layer on the outer side of the first oil-resistant inner rubber layer, wherein the number of winding layers is even, the winding angle is 45-55 degrees, winding the outer end of the first cord thread bearing layer outside an anti-pulling off ring arranged on the outer side of the flange pipe, winding and positioning the first cord thread bearing layer and the anti-pulling off ring, spirally winding a bundling steel wire at the interface of the first cord thread bearing layer, wherein the bundling steel wire is required to meet the quality requirement specified by BS3592:1, and the lowest tensile strength is 650N/mm²The binding steel wire is wound on the flange pipe joint for 3-4 circles in a closed mode, fixed in a welding mode and then wound on the first cord thread bearing layer and the flange pipe at equal intervals, and the winding process of the joints at the two ends is the same;

step two:

winding and covering the reinforcing steel bar framework reinforcing layer on the outer side of the first cord thread bearing layer, wherein a steel wire reinforcing layer is spirally wound on the inner side of the reinforcing steel bar framework reinforcing layer;

step three:

winding a second cord bearing layer on the outer side of the reinforcing steel bar framework reinforcing layer, wherein the winding directions of cord layers adjacent to the reinforcing steel bar framework reinforcing layer are opposite, and the other winding modes are the same, and the second cord bearing layer and the pulling-out resistant ring are wound and positioned;

step four:

covering the first oil-resistant outer rubber layer outside the second cord thread bearing layer, extending and covering the whole hose and stopping at the position of the flange pipe neck;

step five:

arranging a spacer layer at the outer side of the first oil-resistant outer rubber layer;

step six:

repeating the second step to the fourth step to wind, so that the second inner rubber layer covers the outer side of the spacing layer, the third cord pressure bearing layer winds the outer side of the second inner rubber layer, the second outer rubber layer covers the outer side of the third cord pressure bearing layer, binding steel wires are arranged at the joints of the first cord pressure bearing layer, the second cord pressure bearing layer, the third cord pressure bearing layer and the fourth cord pressure bearing layer and the flange pipe, the binding steel wires are wound on the first cord pressure bearing layer, the second cord pressure bearing layer, the third cord pressure bearing layer and the fourth cord pressure bearing layer and the flange pipe in a closed winding mode for 3-4 circles at the joint of the flange pipe and are fixed in a welding mode and then wound on the first cord pressure bearing layer, the second cord pressure bearing layer, the third cord pressure bearing layer and the fourth cord pressure bearing layer and the flange pipe at equal intervals, and the winding processes of the joints at two ends are the same;

step seven:

and then covering the floating layer on the outer side of the second outer rubber layer, winding the fourth cord bearing layer on the floating layer, and finally covering the third outer rubber layer on the outer side of the fourth cord bearing layer, wherein the third outer rubber layer extends to cover the whole hose and stops at the position of the flange pipe neck.

(III) advantageous effects

The invention provides a marine oil hose with a double-protection framework and a preparation method thereof, wherein a hose body comprises a first oil-resistant inner rubber layer, a first cord pressure-bearing layer arranged on the outer side of the first oil-resistant inner rubber layer, and a steel bar framework reinforcing layer arranged on the outer side of the first cord pressure-bearing layer, a steel wire reinforcing layer for increasing the installation strength penetrates through the inner side of the steel bar framework reinforcing layer, a second cord pressure-bearing layer is arranged on the outer side of the steel bar framework reinforcing layer, a first oil-resistant outer rubber layer is arranged on the outer side of the second cord pressure-bearing layer, a spacing layer is arranged on the outer side of the first oil-resistant outer rubber layer, the hose body further comprises a second inner rubber layer arranged on the outer side of the spacing layer, a third cord pressure-bearing layer is arranged on the outer side of the second inner rubber layer, a second outer rubber layer is arranged on the outer side of the third cord pressure-bearing layer, a floating layer for floating is arranged on the outer side of the floating layer, and a fourth cord pressure-bearing layer is arranged on the outer side of the floating layer, and the third outer rubber layer is arranged on the outer side of the fourth cord thread bearing layer, so that the main framework layer formed by the first oil-resistant inner rubber layer and the first oil-resistant outer rubber layer is damaged and loses efficacy, crude oil is gathered to the spacing layer between the main framework layer and the auxiliary framework layer formed by the second inner rubber layer and the second outer rubber layer, the auxiliary framework layer can still bear the crude oil load and oil resistance from the main framework layer, the crude oil can be prevented from leaking out and flowing out to pollute the ocean, and the safety performance of the oil transportation hose is greatly improved.

The invention provides a marine oil hose with a double-protection framework and a preparation method thereof.

The invention provides a marine oil hose with a double-protection framework and a preparation method thereof, wherein a limiting ring is elastically connected with a flange pipe through a spring, the longitudinal section of the limiting ring is trapezoidal, the inner side of the limiting ring is provided with a groove-shaped structure, the longitudinal section of the groove-shaped structure is trapezoidal, a limiting block with the longitudinal section in a T shape is arranged in the groove-shaped structure, the limiting block, the flange pipe and the limiting ring are in sliding connection, the limiting ring monomers are jointed and fixed after the flange pipe monomers are jointed and fixed, the limiting block which is arranged at an equal angle relative to the center of a third sealing ring is moved inwards, the third sealing ring is jointed with the groove-shaped structure on the inner side of the flange pipe, so that the third sealing ring is tightly sealed, the longitudinal section of the compensating ring is trapezoidal, one end of the compensating ring is welded and fixed with the flange pipe, and the outer side of the compensating ring is jointed with the flange pipe on the other side, the compensation of the gap between the flange pipe monomers can be further increased, so that the sealing performance and the leakage-proof performance are further increased.

Drawings

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Fig. 1 is a schematic front view of a connection between a pipe body and a flange connection member according to a first embodiment;

fig. 2 is a schematic overall structure diagram of a tube according to a first embodiment;

FIG. 3 is a schematic front view of a flange connection and a seal assembly according to one embodiment;

FIG. 4 is a schematic diagram of a side view of a connection between a limiting ring and a limiting block in the first embodiment;

FIG. 5 is an enlarged structural view of the portion A in FIG. 3 according to the first embodiment;

FIG. 6 is a schematic view of the connection between the flange connection member and the pipe body according to the first embodiment;

FIG. 7 is an enlarged view of the structure at B in FIG. 1 according to the first embodiment;

FIG. 8 is a graph of the major indices of the first inner gum oil resistant layer and the second inner gum layer in accordance with example one;

FIG. 9 is a schematic representation of the principal indices of the third outer adhesive layer in accordance with the first embodiment;

fig. 10 is a schematic view of an overall connection structure of the oil leakage observation system according to the first embodiment.

Illustration of the drawings: 1-a pipe body; 101-a first oil-resistant inner rubber layer; 102-a first ply of cord bearing layer; 103-a reinforcing steel bar framework reinforcing layer; 104-a second ply of cord bearing layer; 105-a first oil resistant outer glue layer; 106-a spacer layer; 107-second inner glue layer; 108-a third cord pressure bearing layer; 109-a second outer glue layer; 110-a floating layer; 111-a fourth bearing layer of cords; 112-a third outer glue layer; 113-steel wire reinforcement layer;

2-flange connection; 201-flange pipe; 202-a compensation loop; 203-a first sealing ring;

3-a sealing assembly; 301-a stop collar; 302-a second seal ring; 303-a limiting block;

4-a third sealing ring; 5-fastening bolts; 6-resistance to plucking and ring dropping; 7-an auxiliary framework sleeve;

8-an oil leakage observation system; 801-mechanical oil leakage detection device; 802-electronic tuning fork detection sensor; 803-wireless transmitting and receiving module; 804-an industrial personal computer; 805-peripheral circuits such as PLC; 806-a cable;

9-binding the steel wires.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, for the convenience of description, the terms "upper", "lower", "left" and "right" are used to refer to the same direction as the upper, lower, left, right, etc. of the drawings, and the terms "first", "second", etc. are used for descriptive distinction and have no special meaning.

Aiming at the problems in the prior art, the invention provides a marine oil hose with a double-protection framework and a preparation method thereof, wherein the marine oil hose comprises a hose body, flange connecting pieces arranged on the inner side of the hose body, sealing assemblies arranged between single flange connecting pieces, a third sealing ring positioned on the inner side of the sealing assemblies, fastening bolts used for connecting and fixing the single flange connecting pieces, and anti-pulling-off rings used for positioning the hose body, and the specific description is as follows:

1-tube body

Above-mentioned body includes first resistant oily rubber lining in, and set up in the first cord bearing layer in the first resistant oily rubber lining outside, and set up in the framework of steel reinforcement enhancement layer in the first cord bearing layer outside, the inboard of above-mentioned framework of steel reinforcement enhancement layer runs through and has the steel wire enhancement layer that is used for increasing the installation strength, and the outside of framework of steel reinforcement enhancement layer is provided with second cord bearing layer, first resistant oily outer rubber layer is installed in the outside of above-mentioned second cord bearing layer, and the outside of first resistant oily outer rubber layer is provided with the spacer layer. The first oil-resistant inner rubber layer and the first oil-resistant outer rubber layer form a main framework layer to cope with internal damage, and when the main framework layer is damaged, crude oil is gathered to a spacing layer between the main framework layer and an auxiliary framework layer formed by the second inner rubber layer and the second outer rubber layer.

In some examples, the pipe further includes a second inner rubber layer disposed outside the spacing layer, and a third cord pressure-bearing layer is disposed outside the second inner rubber layer, a second outer rubber layer is disposed outside the third cord pressure-bearing layer, and a floating layer for floating is disposed outside the second outer rubber layer, a fourth cord pressure-bearing layer is disposed outside the floating layer, and a third outer rubber layer is disposed outside the fourth cord pressure-bearing layer. When the main framework layer is damaged, crude oil is gathered to the spacing layer between the main framework layer and the auxiliary framework layer formed by the second inner rubber layer and the second outer rubber layer, the auxiliary framework layer can still bear the crude oil load and oil resistance from the main framework layer, the crude oil can be prevented from leaking to the outside and polluting the sea, and the safety performance of the oil hose is greatly improved.

In some examples, the step of winding between the first inner rubber oil-resistant layer and the flanged pipe includes: take a pipe body with an inner diameter of 400mm as an example;

the method comprises the following steps:

step two:

step three:

In some examples, the raw material composition and preparation method for the pipe body comprise:

the first cord pressure bearing layer, the second cord pressure bearing layer, the third cord pressure bearing layer and the fourth cord pressure bearing layer are made of the following materials: a terylene or chinlon rubberized fabric;

the reinforcing steel bar framework reinforcing layer is made of the following materials: the nitrile butadiene rubber and the chloroprene rubber have the weight ratio of 20: 30, of a nitrogen-containing gas; the reinforcing agent is carbon black N774, and the weight ratio is 5: 10; the plasticizer is iron oxide red, the weight portion of phenolic resin is 0.5: 2; cutting into narrow adhesive tapes to be filled in gaps among the spiral steel wires;

the floating layer is mainly an HDPE plate (high density polyethylene plate) with the melting point of about 130 ℃ and the relative density of 0.941-0.960, and has the comprehensive properties of good heat resistance and cold resistance, difficult adhesion, difficult water absorption, good chemical stability, small density and the like, high rigidity and toughness and good mechanical strength;

the method comprises the following steps:

winding a first cord thread bearing layer on the outer side of the first oil-resistant inner rubber layer, wherein the number of winding layers is even, the winding angle is 45-55 degrees, winding the outer end of the first cord thread bearing layer outside an anti-pulling off ring arranged on the outer side of the flange pipe, winding and positioning the first cord thread bearing layer and the anti-pulling off ring, spirally winding a bundling steel wire at the interface of the first cord thread bearing layer and the interface of the first cord thread bearing layer, wherein the bundling steel wire is required to meet the quality requirement specified by BS3592:1, and the lowest tensile strength is 650N/mm²The binding steel wire is wound on the flange pipe joint for 3-4 circles in a closed mode, fixed in a welding mode and then wound on the first cord thread bearing layer and the flange pipe at equal intervals, and the winding process of the joints at the two ends is the same;

step two:

step three:

step four:

step five:

step six:

step seven:

2-Flange connection

The flange connecting piece comprises a flange pipe, a compensating ring arranged on the inner side of the flange pipe and a first sealing ring which is arranged on the outer side of the compensating ring, clamped in the flange pipe and used for sealing, fastening bolts are connected between the single flange connecting pieces, and anti-pulling and anti-dropping rings are arranged on the outer sides of the fastening bolts. The connection between the flange connecting piece monomers is more stable, the installation stability between the pipe body and the flange connecting piece can be increased, and the sealing performance of the connection between the flange connecting piece monomers can be increased.

In some examples, the flange pipe single bodies are provided with fastening bolts at equal angles for connecting and fixing the flange pipe, the inner side of the flange pipe is provided with a groove-shaped structure for installing the sealing assembly and the third sealing ring, and the longitudinal section of the groove-shaped structure for installing the third sealing ring is trapezoidal. The fixing stability between the flange connecting piece monomers can be increased.

In some examples, the longitudinal section of the compensation ring is trapezoidal, one end of the compensation ring is welded and fixed with the flange pipe, and the outer side of the compensation ring is attached to the flange pipe on the other side. The sealing performance between the flange pipe monomers can be improved, and the possibility of leakage is reduced.

In some examples, the anti-pulling-off rings are uniformly arranged on the outer side of the flange pipe, and the anti-pulling-off rings are wrapped by the pipe body. The pipe body can be prevented from being separated from the flange connecting piece.

3-sealing assembly

The sealing assembly comprises a limiting ring, a limiting block and a second sealing ring, wherein the limiting block is arranged on the inner side of the limiting ring, the second sealing ring is arranged on the outer side of the limiting ring, and the inner end of the limiting block is attached with the third sealing ring. The sealability between the flange connection units can be further increased.

In some examples, the limiting ring is elastically connected with the flange pipe through a spring, the longitudinal section of the limiting ring is trapezoidal, a groove-shaped structure is formed in the inner side of the limiting ring, the longitudinal section of the groove-shaped structure is trapezoidal, a limiting block with a T-shaped longitudinal section is arranged in the groove-shaped structure, and the limiting block, the flange pipe and the limiting ring are in sliding connection. Make and link up fixed back between the flange pipe monomer for laminate between the spacing ring monomer, make the stopper that is the angle setting such as about the center of third sealing ring to move to the inboard afterwards, make the groove-shaped structure laminating of third sealing ring and flange pipe inboard, thereby make it carry out inseparable sealed.

In some examples, the stopper is disposed at an equal angle with respect to a center of the third seal ring. The limiting block can extrude the third sealing ring in all directions, and therefore sealing performance is guaranteed.

7-auxiliary framework sleeve

The auxiliary framework sleeve is arranged on the outer side of the flange connecting piece and is arranged at the left end and the right end of the pipe body, an oil leakage observation system is arranged on the inner side of the auxiliary framework sleeve, and the inner side of the auxiliary framework sleeve is communicated with the inner side of the spacing layer. When leakage appears in the inner side of the spacing layer, crude oil enters the auxiliary framework sleeve to trigger the oil leakage observation system to alarm, so that the whole pipe body can be replaced in time, and more leakage is avoided.

In some examples, the oil leakage observation system includes a mechanical oil leakage detection device, an electronic tuning fork detection sensor, a wireless transmitting and receiving module, an industrial personal computer, peripheral circuits such as a PLC and a cable for connection.

The working principle of the additionally-installed electronic tuning fork detection sensor is that a tuning fork vibrates at a certain resonant frequency through a pair of piezoelectric crystals installed on a tuning fork base. When the tuning fork is in contact with a measured medium, the frequency and the amplitude of the tuning fork change according to the density of the measured medium, the changes are detected by the intelligent circuit, processed and converted into a switching signal, and therefore if the tuning fork sensor fork body detects that oil exists, an oil leakage signal is immediately output, and the effectiveness of alarming is improved.

The wireless transmitting and receiving module uses the transmitting and receiving module based on the A7130 chip when sending and receiving data, the frequency is modulated into the wave band frequency opened to the civil equipment when the rubber tube leaves the factory, and the transmitting and receiving time delay is less than 10 milliseconds after testing. The receiving end of the transmitting module and the transmitting end of the receiving module both support 485 communication, so that wiring is reduced when the receiving end is connected with an oil leakage alarm signal and an industrial personal computer, and anti-interference performance is enhanced. Limited by the support of 485 communication protocols, each pipeline only supports 127 rubber pipes at present.

The industrial personal computer adopts a collection scheme that a porphyry industrial personal computer replaces a general commercial computer and a data acquisition card. The plurality of 485 and Ethernet interfaces integrated by the industrial personal computer facilitate the expansion and the upgrade of subsequent functions and the data transmission and exchange with higher financial or production departments. The industrial personal computer end is provided with server software of mobile phone app for displaying the state of the rubber tube in real time, and whether the rubber tube is normal or not can be monitored at the mobile phone end only by the mobile phone and the industrial personal computer being in the same network without the help of a third-party server. A code scanner is connected to an industrial personal computer, and when the pipeline is initially installed, the two-dimensional codes attached to the flange sides of each rubber pipe can be scanned to record information of the number, the model, the production date, teams and the like of the rubber pipe into a database, so that related information of the pipe can be conveniently and timely called in case of oil leakage alarm of the rubber pipe. If the scanner fails temporarily, the entry can be performed manually. The configuration software adopts MCGS or Beijing Asia control.

The plc in this system functions to immediately drive the acousto-optic controlled alarm device once an oil leak is detected, and to shut down the motors and valves of the oil transfer pump and the pressurizing pump according to the settings. The I/O point can also be connected with a button or other interfaces, so that the oil leakage alarm system and the whole oil transportation system are integrated organically.

The cable used in the system adopts 2x1.5 parallel lines in a 24V direct current power supply, a switching value signal adopts 2x1 parallel lines, a 485 network transmission line after signal acquisition adopts 2x1 twisted pair shielded lines, a three-wire pnp tuning fork switch adopts 3x1 shielded lines, all cables are the same as rubber materials used by an oil-resistant outer rubber layer, parameters such as ductility, tensile strength and yield strength of a conductive soft copper wire are the same as those of rubber tubes, release agents, lubricating powder and other materials which are easy to separate the copper wire from an insulating rubber sheet cannot be added during extrusion molding, vulcanization is not carried out after molding, the cable and other rubber materials are wound together and then vulcanized and molded with the rubber tube simultaneously when the cable is used, and thus the phenomenon of rubber tube delamination caused by the penetration of the cable is avoided. The cable is connected to a waterproof and corrosion-resistant sealing socket welded at the flange end after the rubber tube is led out. The rubber tubes are connected by adopting a connecting cable with multiple terminals and an anti-reverse-insertion function, and the rubber tubes are simple in insertion, safe and reliable. The real-time performance and the accuracy are further improved by adopting a mode of combining a mechanical contact with a pnp collector open-circuit electronic contact based on frequency detection

The first embodiment is as follows:

based on the above concept, as shown in fig. 1-10, in a specific application scenario of a marine oil hose with a double protection framework provided by the present invention, as shown in fig. 1, 3 and 6, the marine oil hose includes a pipe body 1, a flange connector 2 disposed inside the pipe body 1, a sealing assembly 3 installed between single bodies of the flange connector 2, a third sealing ring 4 located inside the sealing assembly 3, a fastening bolt 5 for engaging and fixing the single bodies of the flange connector 2, and an anti-pulling-off ring 6 for positioning the pipe body 1, wherein,

as shown in fig. 1 and 2, the pipe body 1 includes a first oil-resistant inner rubber layer 101, a first cord bearing layer 102 disposed outside the first oil-resistant inner rubber layer 101, and a steel reinforcement layer 103 disposed outside the first cord bearing layer 102, a steel wire reinforcement layer 113 for increasing installation strength penetrates through the inner side of the steel reinforcement layer 103, a second cord bearing layer 104 is disposed outside the steel reinforcement layer 103, a first oil-resistant outer rubber layer 105 is disposed outside the second cord bearing layer 104, and a spacing layer 106 is disposed outside the first oil-resistant outer rubber layer 105.

As shown in fig. 3, the flange connector 2 includes a flange pipe 201, a compensation ring 202 disposed inside the flange pipe 201, and a first sealing ring 203 disposed outside the compensation ring 202 and engaged with the flange pipe 201 for sealing, wherein a fastening bolt 5 is engaged between the flange connector 2 and the fastening bolt 5 is provided with an anti-pulling-off ring 6 on the outer side.

As shown in fig. 3, the sealing assembly 3 includes a limiting ring 301, a limiting block 303 disposed inside the limiting ring 301, and a second sealing ring 302 mounted outside the limiting ring 301, wherein the inner end of the limiting block 303 is attached to the third sealing ring 4.

As shown in fig. 1, the auxiliary frame sleeve 7 is installed outside the flange connector 2 and disposed at one of the left and right ends of the pipe body 1, and the oil leakage observation system 8 is installed inside the auxiliary frame sleeve 7, and the inside of the auxiliary frame sleeve 7 communicates with the inside of the spacer layer 106, wherein the oil leakage observation system 8 is of the type Asahi-CS-1505 in japan.

In a specific application scenario, as shown in fig. 1, the pipe body 1 further includes a second inner rubber layer 107 disposed outside the spacing layer 106, a third cord pressure-bearing layer 108 is disposed outside the second inner rubber layer 107, a second outer rubber layer 109 is disposed outside the third cord pressure-bearing layer 108, a floating layer 110 for floating is disposed outside the second outer rubber layer 109, a fourth cord pressure-bearing layer 111 is disposed outside the floating layer 110, and a third outer rubber layer 112 is disposed outside the fourth cord pressure-bearing layer 111.

In a specific application scenario, as shown in fig. 3 and 4, the fastening bolts 5 for connecting and fixing the flange pipe 201 are arranged at equal angles between the single bodies of the flange pipe 201, and the inner side of the flange pipe 201 is provided with a groove-shaped structure for installing the sealing assembly 3 and the third sealing ring 4, and the longitudinal section of the groove-shaped structure for installing the third sealing ring 4 is trapezoidal.

In a specific application scenario, as shown in fig. 3, a longitudinal section of the compensation ring 202 is trapezoidal, one end of the compensation ring 202 is welded to the flange pipe 201, and an outer side of the compensation ring 202 is attached to the flange pipe 201 on the other side.

In a specific application scenario, as shown in fig. 3, 5 and 7, the limiting ring 301 is elastically connected with the flange pipe 201 through a spring, a longitudinal section of the limiting ring 301 is trapezoidal, a groove-shaped structure is formed on an inner side of the limiting ring 301, the longitudinal section of the groove-shaped structure is trapezoidal, a limiting block 303 with a longitudinal section in a T shape is arranged in the groove-shaped structure, and the limiting block 303, the flange pipe 201 and the limiting ring 301 are slidably connected.

In a specific application scenario, as shown in fig. 4, the limiting blocks 303 are disposed at equal angles with respect to the center of the third sealing ring 4.

In a specific application scenario, as shown in fig. 1, the anti-pulling-off rings 6 are uniformly arranged outside the flange pipe 201, and the anti-pulling-off rings 6 are wrapped by the pipe body 1.

In a specific application scenario, as shown in fig. 10, the oil leakage observation system 8 includes a mechanical oil leakage detection device 801, an electronic tuning fork detection sensor 802, a wireless transmitting and receiving module 803, an industrial personal computer 804, a peripheral circuit 805 such as a PLC, and a cable 806 for connection.

In a specific application scenario, the winding step between the first oil-resistant inner rubber layer 101 and the flange pipe 201 includes: taking a pipe body 1 with the inner diameter of 400mm as an example;

the method comprises the following steps:

step two:

installing a flange 201 at both ends of the die and fixing it on the die;

step three:

and winding a first oil-resistant inner rubber layer 101 with the thickness of 1mm and the width of 100mm on the flange pipe 201 and the pipe core, wherein the winding thickness is 4 mm.

In a specific application scenario, as shown in fig. 8 and 9, the raw material composition and preparation method required by the pipe body 1 includes:

the first oil resistant inner rubber layer 101 is made of the following materials: oil-resistant nitrile rubber, the weight portion is 50: 70; the filling reinforcing agent is carbon black N330, and the weight ratio is 10: 20; the plasticizer is dioctyl ester, and the weight ratio is 5: 10; the activator is magnesium oxide, and the weight ratio of the activator is 1: 3; the weight part ratio of the anti-aging agent is 0.5: 1;

the first 102, second 104, third 108 and fourth 111 bearing layers of cord are comprised of the following materials: a terylene or chinlon rubberized fabric;

the reinforcement layer 103 of the steel reinforcement framework is made of the following materials: the nitrile butadiene rubber and the chloroprene rubber have the weight ratio of 20: 30, of a nitrogen-containing gas; the reinforcing agent is carbon black N774, and the weight ratio is 5: 10; the plasticizer is iron oxide red, the weight portion of phenolic resin is 0.5: 2; cutting into narrow adhesive tapes to be filled in gaps among the spiral steel wires;

the first 105 and third 112 outer oil resistant gum layers are comprised of the following materials: butadiene, chloroprene and styrene butadiene rubber, the weight ratio is 30: 40; the reinforcing agent is carbon black N330, and the weight portion ratio is 10: 15, the first oil-resistant outer rubber layer 105 and the third outer rubber layer 112 are resistant to aging, abrasion, illumination and salt fog;

the floating layer 110 is mainly an HDPE plate (high density polyethylene plate) with the melting point of about 130 ℃ and the relative density of 0.941-0.960;

the method comprises the following steps:

winding a first cord bearing layer 102 on the outer side of the first oil-resistant inner rubber layer 101, wherein the number of winding layers is even, and the winding angle is 45-55 degrees, the outer end of the first cord bearing layer 102 is wound outside an anti-pulling and releasing ring 6 arranged outside the flange pipe 201 and is wound and positioned with the anti-pulling and releasing ring 6, a bundling steel wire is spirally wound at the interface of the first cord bearing layer 102 and the first cord bearing layer 201, the bundling steel wire 9 meets the quality requirement specified by BS3592:1, and the lowest tensile strength is 650N/mm²The binding steel wire 9 is wound on the first cord pressure bearing layer 102 and the flange pipe 201 in an equidistant manner after being wound for 3-4 circles at the joint of the flange pipe 201 and fixed by adopting a welding mode, and the winding processes of the joints at the two ends are the same;

step two:

winding and covering the steel bar framework reinforcing layer 103 on the outer side of the first cord thread pressure bearing layer 102, and spirally winding a steel wire reinforcing layer 113 on the inner side of the steel bar framework reinforcing layer 103;

step three:

winding a second cord bearing layer 104 on the outer side of the reinforcing steel bar framework reinforcing layer 103, wherein the winding directions of cord layers adjacent to the reinforcing steel bar framework reinforcing layer are opposite, and the other winding modes are the same, and the second cord bearing layer and the pulling-out resistant release ring 6 are wound and positioned;

step four:

covering the first oil-resistant outer rubber layer 105 outside the second cord thread pressure-bearing layer 104, extending and covering the whole hose and stopping at the neck position of the flange pipe 201;

step five:

a spacing layer 106 is arranged on the outer side of the first oil-resistant outer rubber layer 105;

step six:

repeating the second step to the fourth step to wind, so that the second inner rubber layer 107 covers the outer side of the spacing layer 106, the third cord pressure-bearing layer 108 is wound on the outer side of the second inner rubber layer 107, the second outer rubber layer 109 covers the outer side of the third cord pressure-bearing layer 108, binding steel wires 9 are arranged at the joints of the first cord pressure-bearing layer 102, the second cord pressure-bearing layer 104, the third cord pressure-bearing layer 108 and the fourth cord pressure-bearing layer 111 and the flange pipe 201, the binding steel wires 9 are wound on the joints of the flange pipe 201 for 3-4 circles in a closed mode and fixed in a welding mode and then wound on the first cord pressure-bearing layer 102, the second cord pressure-bearing layer 104, the third cord pressure-bearing layer 108 and the fourth cord pressure-bearing layer 111 at equal intervals and the flange pipe 201, and the winding process of the joints at the two ends is the same;

step seven:

then the floating layer 110 is covered on the outer side of the second outer rubber layer 109, the fourth cord pressure-bearing layer 111 is wound on the floating layer 110, finally the third outer rubber layer 112 is covered on the outer side of the fourth cord pressure-bearing layer 111, and the third outer rubber layer 112 extends to cover the whole hose and stops at the neck position of the flange pipe 201.

Those skilled in the art will appreciate that the drawings are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the drawings are not necessarily required to implement the present invention.

Those skilled in the art will appreciate that the modules in the marine oil hose in the implementation scenario may be distributed in the marine oil hose in the implementation scenario according to the description of the implementation scenario, or may be correspondingly changed in one or more marine oil hoses different from the present implementation scenario. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.

The above disclosure is only a concrete implementation scenario of the present invention, however, the present invention is not limited to this, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. The marine oil hose with the double-protection framework comprises a hose body (1), flange connecting pieces (2) arranged on the inner sides of the hose body (1), sealing assemblies (3) arranged between the flange connecting pieces (2) and single bodies, a third sealing ring (4) positioned on the inner sides of the sealing assemblies (3), fastening bolts (5) used for connecting and fixing the flange connecting pieces (2) and pull-out resistant rings (6) used for positioning the hose body (1),

the pipe body (1) comprises a first oil-resistant inner rubber layer (101), a first cord bearing layer (102) arranged on the outer side of the first oil-resistant inner rubber layer (101), and a steel bar framework reinforcing layer (103) arranged on the outer side of the first cord bearing layer (102), wherein a steel wire reinforcing layer (113) used for increasing the installation strength penetrates through the inner side of the steel bar framework reinforcing layer (103), a second cord bearing layer (104) is arranged on the outer side of the steel bar framework reinforcing layer (103), a first oil-resistant outer rubber layer (105) is arranged on the outer side of the second cord bearing layer (104), and a spacing layer (106) is arranged on the outer side of the first oil-resistant outer rubber layer (105);

the flange connecting piece (2) comprises a flange pipe (201), a compensating ring (202) arranged on the inner side of the flange pipe (201), and a first sealing ring (203) which is arranged on the outer side of the compensating ring (202), clamped in the flange pipe (201) and used for sealing, a fastening bolt (5) is connected between single bodies of the flange connecting piece (2), and an anti-pulling-off ring (6) is arranged on the outer side of the fastening bolt (5);

the sealing assembly (3) comprises a limiting ring (301), a limiting block (303) arranged on the inner side of the limiting ring (301), and a second sealing ring (302) arranged on the outer side of the limiting ring (301), wherein the inner end of the limiting block (303) is attached with a third sealing ring (4);

the auxiliary framework sleeve (7) is arranged on the outer side of the flange connecting piece (2) and is arranged at one end of the pipe body (1) in the left and right directions, an oil leakage observation system (8) is arranged on the inner side of the auxiliary framework sleeve (7), and the inner side of the auxiliary framework sleeve (7) is communicated with the inner side of the spacing layer (106).

2. The marine oil hose with a double protection frame as claimed in claim 1, wherein the pipe body (1) further comprises a second inner rubber layer (107) disposed outside the spacer layer (106), and a third cord pressure-bearing layer (108) is disposed outside the second inner rubber layer (107), a second outer rubber layer (109) is disposed outside the third cord pressure-bearing layer (108), and a floating layer (110) for floating is disposed outside the second outer rubber layer (109), a fourth cord pressure-bearing layer (111) is disposed outside the floating layer (110), and a third outer rubber layer (112) is disposed outside the fourth cord pressure-bearing layer (111).

3. The marine oil hose with the double-protection framework as defined in claim 1, wherein the fastening bolts (5) for connecting and fixing the flange pipe (201) are arranged at equal angles between the single flange pipes (201), the inner side of the flange pipe (201) is provided with a groove-shaped structure for installing the sealing component (3) and the third sealing ring (4), and the longitudinal section of the groove-shaped structure for installing the third sealing ring (4) is trapezoidal.

4. The marine oil hose with double protection frameworks as claimed in claim 1, wherein the longitudinal section of the compensation ring (202) is trapezoidal, one end of the compensation ring (202) is welded and fixed with the flange pipe (201), and the outer side of the compensation ring (202) is attached to the flange pipe (201) on the other side.

5. The marine oil hose with the double-protection framework as claimed in claim 1, wherein the limit ring (301) is elastically connected with the flange pipe (201) through a spring, the longitudinal section of the limit ring (301) is trapezoidal, the inner side of the limit ring (301) is provided with a groove-shaped structure, the longitudinal section of the groove-shaped structure is trapezoidal, a limit block (303) with a T-shaped longitudinal section is arranged in the groove-shaped structure, and the limit block (303), the flange pipe (201) and the limit ring (301) are slidably connected.

6. The marine oil hose with double protection frameworks as claimed in claim 1, wherein the limiting blocks (303) are arranged at equal angles with respect to the center of the third sealing ring (4).

7. The marine oil hose with double protection skeletons as claimed in claim 1, wherein the pull-out preventing rings (6) are uniformly arranged outside the flange pipe (201), and the pull-out preventing rings (6) are wrapped by the pipe body (1).

8. The marine oil hose with double protection frameworks as claimed in claim 1, wherein the oil leakage observation system (8) comprises a mechanical oil leakage detection device (801), an additional electronic tuning fork detection sensor (802), a wireless transmitting and receiving module (803), an industrial personal computer (804), peripheral circuits (805) such as a PLC (programmable logic controller) and a cable (806) for connection.

9. The marine oil hose with double protection skeletons as claimed in claim 1, wherein the winding step between the first oil-resistant inner rubber layer (101) and the flange pipe (201) comprises: taking a pipe body (1) with the inner diameter of 400mm as an example;

the method comprises the following steps:

selecting a tube core with the inner diameter of 400mm, polishing and derusting the tube core, and then coating a release agent;

step two:

installing a flange (201) at both ends of the die and fixing the flange on the die;

step three:

and winding a first oil-resistant inner rubber layer (101) with the thickness of 1mm and the width of 100mm on the flange pipe (201) and the pipe core, wherein the winding thickness is 4 mm.

10. The marine oil hose with double protection frameworks according to claim 1, wherein the raw material composition and preparation method required by the pipe body (1) comprise:

the first oil-resistant inner rubber layer (101) is made of the following materials: oil-resistant nitrile rubber, the weight portion is 50: 70; the filling reinforcing agent is carbon black N330, and the weight ratio is 10: 20; the plasticizer is dioctyl ester, and the weight ratio is 5: 10; the activator is magnesium oxide, and the weight ratio of the activator is 1: 3; the weight part ratio of the anti-aging agent is 0.5: 1;

the first cord bearing layer (102), the second cord bearing layer (104), the third cord bearing layer (108) and the fourth cord bearing layer (111) are made of the following materials: a terylene or chinlon rubberized fabric;

the reinforcing steel bar framework reinforcing layer (103) is made of the following materials: the nitrile butadiene rubber and the chloroprene rubber have the weight ratio of 20: 30, of a nitrogen-containing gas; the reinforcing agent is carbon black N774, and the weight ratio is 5: 10; the plasticizer is iron oxide red, the weight portion of phenolic resin is 0.5: 2; cutting into narrow adhesive tapes to be filled in gaps among the spiral steel wires;

the first oil-resistant outer rubber layer (105) and the third outer rubber layer (112) are made of the following materials: butadiene, chloroprene and styrene butadiene rubber, the weight ratio is 30: 40; the reinforcing agent is carbon black N330, and the weight ratio is 10: 15, the first oil-resistant outer rubber layer (105) and the third outer rubber layer (112) are resistant to aging, abrasion, light and salt fog;

the floating layer (110) is mainly an HDPE plate (high density polyethylene plate) with the melting point of about 130 ℃ and the relative density of 0.941-0.960;

the method comprises the following steps:

winding a first cord bearing layer (102) on the outer side of a first oil-resistant inner rubber layer (101), wherein the number of winding layers is even, the winding angle is 45-55 degrees, winding the outer end of the first cord bearing layer (102) outside an anti-pulling and stripping ring (6) arranged on the outer side of a flange pipe (201), winding and positioning are carried out on the first cord bearing layer and the anti-pulling and stripping ring (6), a bundling steel wire is spirally wound at the interface of the first cord bearing layer (102) and the interface of the first cord bearing layer (201), the bundling steel wire (9) is required to meet the quality requirement specified by BS3592:1, and the lowest tensile strength is 650N/mm²The binding steel wire (9) is wound on the first cord thread bearing layer (102) and the flange pipe (201) in an equidistance mode after being wound for 3-4 circles in a closed mode at the joint of the flange pipe (201) and fixed in a welding mode, and the winding process of the joints at the two ends is the same;

step two:

winding and covering the steel bar framework reinforcing layer (103) on the outer side of the first cord thread bearing layer (102), and spirally winding a steel wire reinforcing layer (113) on the inner side of the steel bar framework reinforcing layer (103);

step three:

winding a second cord bearing layer (104) on the outer side of the reinforcing steel bar framework reinforcing layer (103), wherein the winding directions of adjacent cord layers of the reinforcing steel bar framework reinforcing layer are opposite, and the other winding modes are the same, so that the second cord bearing layer and the anti-pulling and anti-falling ring (6) are wound and positioned;

step four:

covering a first oil-resistant outer rubber layer (105) outside a second cord thread bearing layer (104), extending and covering the whole hose and stopping at the neck position of a flange pipe (201);

step five:

arranging a spacing layer (106) at the outer side of the first oil-resistant outer rubber layer (105);

step six:

repeating the second step to the fourth step to wind, so that the second inner rubber layer (107) covers the outer side of the spacing layer (106), the third cord pressure-bearing layer (108) winds the outer side of the second inner rubber layer (107), the second outer rubber layer (109) covers the outer side of the third cord pressure-bearing layer (108), the joint of the first cord thread bearing layer (102), the second cord thread bearing layer (104), the third cord thread bearing layer (108) and the fourth cord thread bearing layer (111) and the flange pipe (201) is provided with a binding steel wire (9), the binding steel wire (9) is wound on the joint of the flange pipe (201) for 3-4 circles in a closed manner, is fixed in a welding manner and then is wound on the first cord thread bearing layer (102), the second cord thread bearing layer (104), the third cord thread bearing layer (108) and the fourth cord thread bearing layer (111) at equal intervals and the flange pipe (201), and the winding process of the joints at the two ends is the same;

step seven:

then, the floating layer (110) covers the outer side of the second outer rubber layer (109), the fourth cord pressure-bearing layer (111) is wound on the floating layer (110), finally, the third outer rubber layer (112) covers the outer side of the fourth cord pressure-bearing layer (111), and the third outer rubber layer (112) extends to cover the whole hose and is stopped at the neck position of the flange pipe (201).