CN116772082A - Tensile sealing flexible pipe without elongation, torsion and shrinkage - Google Patents

Abstract

The invention discloses a tensile sealing flexible pipe without elongation, torsion and shrinkage, which relates to the structural design field of tensile sealing flexible pipes, and comprises a pipe body and a bearing rope; the pipe body is a non-bearing sealing flexible pipe, can bear certain internal pressure and can generate radial expansion under the action of the internal pressure; the bearing rope is a high-strength low-elongation fiber rope which is embedded in the pipe body and uniformly arranged along the axial direction, and is a bearing unit of the whole flexible pipe. Through reasonable design, the invention maintains the characteristics of sealing, softness, wear resistance, radial expansion and the like of the pipe body, improves the tensile capacity, ensures that the flexible pipe has no elongation, no torsion and no shrinkage during bearing and pulling through reasonable arrangement of the bearing ropes, is beneficial to loading components and protecting the loaded components from being damaged by stretching, torsion and extrusion.

Description

Tensile sealing flexible pipe without elongation, torsion and shrinkage

Technical Field

The invention belongs to the field of structural design of tensile sealing flexible pipes, and particularly relates to a tensile sealing flexible pipe without elongation, torsion and diameter shrinkage.

Background

Sealing flexible pipes, especially PU pipes, is a common outer protective layer for acoustic detection towed arrays. The traditional underwater sound detection towing array uses one or more high-strength fiber soft ropes or steel wire ropes as a bearing component of the whole towing array, and the bearing component is fixed with required components and is filled with a sealed flexible pipe to isolate external seawater. Because the fiber soft rope or the steel wire rope bearing the pulling force of the whole towing array penetrates through the whole towing array, and the diameter and the number of the internal bearing parts of the towing array are correspondingly increased along with the increase of the pulling force, the valuable space inside the towing array is inevitably occupied, and the design of the underwater sound detection components is greatly influenced. The design of a sealed flexible pipe with tensile capabilities is highly desirable. The existing tensile sealing hose is generally characterized in that a spiral wound or woven fiber soft rope or a wire rope is embedded in the wall thickness of the hose to be used as a separate or common bearing component, and has the following disadvantages in the underwater sound detection towing array: firstly, a spirally wound or woven tensile member stretches when the towing array is pulled, and when the stretching amount exceeds a certain value, the sealing flexible pipe is damaged; secondly, the device is elongated and simultaneously generates torsion and diameter reduction, and the elongation and the torsion and the diameter reduction caused by the elongation can cause adverse effects on the detection result and even damage the internal components; thirdly, the spiral winding or braiding bearing component is unfavorable for sealing the flexible pipe to generate radial expansion so as to facilitate the loading of components.

Therefore, it is needed to provide a tensile seal flexible pipe, which can solve the problem that the underwater sound detection dragging array tensile component occupies the space of components and parts, and has the characteristics of no extension, no torsion and no diameter shrinkage.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a tensile sealing flexible pipe without elongation, torsion and shrinkage.

The aim of the invention is realized by the following technical scheme: a stretch-proof, twist-free, diameter-reducing-free, tensile-sealed flexible pipe comprising: the support ropes are embedded in the pipe body and are uniformly arranged along the axial direction.

Further, the pipe body is a round flexible pipe with uniform pipe wall thickness.

Further, PU is selected as a material of the pipe wall of the pipe body.

Further, the bearing rope is a fiber soft rope or a steel wire rope with high tensile strength and low elongation.

Further, the bearing rope is an aramid rope.

Further, the diameter of each supporting rope is smaller than the wall thickness of the pipe body, and each supporting rope is coated inside the pipe wall of the pipe body; the length of each supporting rope is larger than that of the pipe body, and ropes with certain length are reserved at the two ends of the pipe body.

The beneficial effects of the invention are as follows: the tensile sealing flexible pipe has no extension, torsion and shrinkage when bearing tension due to reasonable layout of the bearing ropes, so that the tensile sealing flexible pipe has no influence on internal components such as tension, torsion and extrusion, and the normal operation of the internal components is ensured; and because there is no cross between the tension ropes, radial expansion can be generated under the action of certain internal pressure, so that the internal components can be conveniently installed.

Drawings

FIG. 1 is a schematic structural view of a non-stretch, non-twist, non-shrink tensile sealed flexible pipe, wherein FIG. 1 (a) is a schematic sectional view of a non-stretch, non-twist, non-shrink tensile sealed flexible pipe, and FIG. 1 (b) is a schematic perspective view of a non-stretch, non-twist, non-shrink tensile sealed flexible pipe;

in the figure, 1-bearing rope and 2-pipe body.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples, it being understood that the specific examples described herein are for the purpose of illustrating the present invention only, and not all the examples. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are within the scope of the present invention.

In general, the components of the inventive embodiments described and illustrated in the figures may be implemented in other different detailed structures and dimensional changes. In the drawings of the specific embodiment of the invention, in order to more clearly describe the working principle of each component in the tensile sealing flexible pipe without elongation, torsion and shrinkage, the size, the shape and the material of each component in the structure cannot be limited.

Example 1

As shown in fig. 1, the invention provides a tensile sealing flexible pipe without elongation, torsion and shrinkage, which comprises a plurality of bearing ropes 1 and a pipe body 2, wherein the bearing ropes 1 are embedded in the pipe body 2 and are uniformly arranged along the axial direction.

The pipe body 2 is a sealing and pressure-bearing member, can seal internal gas or liquid with certain pressure, and has certain radial expansion under the action of the internal pressure. The bearing rope 1 is a bearing part of the whole sealed flexible pipe, and the flexible pipe is free from elongation, torsion and shrinkage during bearing due to the characteristics and reasonable arrangement mode.

The pipe body 2 is a round flexible pipe with uniform pipe wall thickness, and has the characteristics of pressure resistance, wear resistance, corrosion resistance, aging resistance and high flexibility.

The tension rope 1 is a fiber soft rope or a steel wire rope with high tensile strength and low elongation, can be single-stranded or multi-stranded, and is preferably made of aramid rope.

The pipe body 2 is embedded with the bearing ropes which are arranged along the axial direction, and the bearing ropes are independently arranged, and the adjacent bearing ropes are not crossed, so the pipe body can expand radially when being subjected to the pressure of internal gas or liquid, and can restore when the internal pressure is eliminated

Example 2

On the basis of the embodiment 1, the diameter of each supporting rope 1 is smaller than the pipe wall thickness of the pipe body 2; each of the supporting ropes 1 is wrapped inside the pipe wall of the pipe body 2. The length of each supporting rope 1 is larger than that of the pipe body 2, and ropes with certain lengths are reserved at two ends of the pipe body 2 and used for being connected with adjacent parts. Each carrying rope is an independent carrying unit.

As shown in fig. 1 (a), the diameter of each supporting rope 1 is smaller than the wall thickness of the pipe body 2, and the supporting ropes are arranged in parallel along the axial direction and embedded in the pipe wall of the pipe body 2, and all the supporting ropes are covered by the pipe body 2 (except for the positions of two end surfaces of the pipe body 2) so as to ensure the tightness of the pipe body 2.

As shown in fig. 1 (b), each of the supporting ropes 1 has no cross to ensure that each supporting rope is an independent supporting unit, and each supporting rope 1 reserves a rope body with a certain length at two ends of the pipe body 2 for connecting with adjacent components.

Before each supporting rope 1 is embedded into the pipe body, the supporting ropes are required to be tensioned under the action of external force so as to ensure that the supporting ropes are parallel, uniformly distributed and straightened after the finished product is manufactured.

The size and the number of the bearing ropes are determined by the required bearing tension and the material. The internal dimensions of the tube are determined by the dimensions of the components to be housed. The wall of the required pipe body is determined by the pressure required to bear and the material. The pipe body can radially expand under the pressure of internal gas or liquid, and can restore to the original state after the internal pressure is relieved. The tensile force of the tensile sealing flexible pipe in the axial direction is borne by the bearing rope, and the tensile force is generated by the drag force.

In summary, the tensile sealing flexible pipe without elongation, torsion and shrinkage provided by the invention protects the internal components from being affected by stretching, twisting, extrusion and the like when being subjected to towing tension, has ingenious, simple and reliable structure, and is a preferred choice of a underwater sound detection towing array.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.

Claims (6)

1. A stretch-proof, twist-free, diameter-reducing-free, tensile-sealed flexible pipe comprising: the pipe comprises a plurality of supporting ropes (1) and a pipe body (2), wherein the supporting ropes (1) are embedded in the pipe body (2) and are uniformly arranged along the axial direction.

2. The stretch-proof, torsion-proof and diameter-reducing-free flexible tube according to claim 1, wherein the tube body (2) is a circular flexible tube with uniform tube wall thickness.

3. The stretch-proof, torsion-free and diameter-reduction-free flexible tube with tensile sealing according to claim 1, wherein the material of the tube wall of the tube body (2) is PU.

4. The stretch-proof, torsion-free and diameter-reducing tensile sealed flexible pipe according to claim 1, characterized in that the tensile cord (1) is a high tensile strength, low elongation fiber rope or wire rope.

5. The stretch-proof, torsion-free and diameter-reducing tensile sealed flexible pipe according to claim 1, wherein the tensile cord (1) is an aramid cord.

6. The stretch-free, torsion-free and diameter-reducing tensile sealed flexible pipe according to claim 1, wherein the diameter of each of the tensile cords (1) is smaller than the wall thickness of the pipe body (2), and each of the tensile cords (1) is wrapped inside the pipe wall of the pipe body (2); the length of each supporting rope (1) is larger than that of the pipe body (2), and ropes with certain length are reserved at two ends of the pipe body (2).