CN215258312U - Detectable hose - Google Patents

Abstract

The utility model discloses a detectable hose. Comprises an inner layer (1) and an outer layer (2), and the key is that the inner layer (1) is provided with a detectable tracer marker (3). The utility model discloses can detect the wearing and tearing condition of hose inlayer at any time in the use, the reduction of very big degree or elimination lead to revealing of the liquid in the hose that hose intensity reduces and appear or bursting of the hose pipe wall that probably appears because of the wearing and tearing of hose inlayer, have improved the security of using the hose by a wide margin.

Description

Detectable hose

The technical field is as follows:

the utility model relates to a hose assembly that uses under high pressure specifically indicates a high-pressure hose for carrying grit.

Background art:

in the production process of oil and gas wells in the petroleum industry, fracturing operation exists according to the state of the oil and gas wells, batch fracturing sand stones are conveyed to a designated place, meanwhile, hydrochloric acid is required to be conveyed by a hose simultaneously for acidizing underground strata, and usually, a steel pipe is used as a conveying channel to bear the sand stone flow which drives high pressure and high-speed movement and exists during conveying. The conveying pipeline composed of the steel pipe and the metal pipe joint has the defects that the layout of the fracturing equipment is limited by the specification of the steel pipe due to the limitation of rigid materials, the conveying pipeline is heavy and inflexible, and the conveying pipeline is very troublesome to carry, install and disassemble; secondly, a large amount of steel pipes with different specifications need to be prestored; thirdly, the number of steel pipes and metal joints in the whole layout of the fracturing equipment is large, and various bent pipes need to be stored; fourthly, the flow resistance of the channel is increased due to the complexity of the fracturing conveying channel, and the output pressure has to be increased; fifthly, the difficulty of transition after the fracturing operation is finished is caused; sixthly, in the process of conveying fractured sand, high pressure, large flow and high flow velocity can generate vibration in the pipeline, and the vibration fatigue of the whole steel pipe pipeline can be caused. After the hose is used for a period of time, the inner surface of the hose is abraded to a certain extent, and when the abrasion exceeds a certain amount, the hose in a high-pressure state is burst, so that accidents are caused. Therefore, how to know the wear condition inside the hose is a problem to be solved.

The invention content is as follows:

the utility model aims at disclosing a hose which can be convenient for wear detection at any time.

Realize the utility model discloses a technical solution is: comprises an inner layer and an outer layer, and the key is that the inner layer is provided with a detectable tracing marker.

The tracing marker is a high-density metal sheet or a radio frequency sheet or a rubber sheet containing lead powder.

The inner layer is at least two-layer structure, and the tracing marker is arranged between each layer of the inner layer and the interface between the inner layer and the outer layer.

The inner layer is composed of two layers, namely a black glue layer and a green glue layer from inside to outside; or the inner layer is three layers, namely a black glue layer, a green glue layer and a yellow glue layer from inside to outside; or the inner layer is four layers, namely a black glue layer, a green glue layer, a yellow glue layer and a red glue layer from inside to outside in sequence, and the thicknesses of the layers are the same or different.

The outer layer comprises a reinforcing layer and an outer adhesive layer from inside to outside in sequence, and at least two layers of winding steel wire layers are arranged in the reinforcing layer.

The interfaces of the layers of the inner layer are provided with tracing markers, and the tracing markers between different layers are spaced at a proper distance in the axial direction of the hose.

The outer surface of the hose is provided with a detection mark at a position corresponding to the tracing mark.

Each layer of the inner layer is made of ultra-high molecular weight polyethylene, PVDF material, elastic rubber or polyurethane material, or any combination of the materials.

The utility model discloses an above-mentioned technical scheme makes the hose can detect the wearing and tearing condition of hose inlayer at any time in the use, and the reduction of very big degree or the elimination leads to revealing of the liquid in the hose that hose intensity reduces and appear or bursting of the hose pipe wall that probably appears because of the wearing and tearing of hose inlayer, has improved the security of using the hose by a wide margin.

The attached drawings of the specification:

fig. 1 is a schematic sectional view of the tube wall of the hose of the present invention.

The specific implementation mode is as follows:

the detailed embodiments of the present invention are described in detail with reference to the accompanying drawings, and it should be noted that the embodiments of the present invention are provided to facilitate the understanding of the technical solutions of the present invention, and should not be construed as limiting the scope of the claims of the present invention.

Referring to fig. 1, the technical solution of the embodiment of the present invention is: comprises an inner layer 1 and an outer layer 2, and the key is that the inner layer 1 is provided with a detectable tracing marker 3; when the hose is in fracturing operation of an oil field, the hose passes through a large-flow, high-flow and high-pressure sand flow, sand and stone wear the inner wall surface of the hose, when the wear condition is serious, the hose can leak and break, even a burst surface occurs to cause serious accidents, therefore, the hose in the use state is scanned by a handheld detection instrument, when the tracing marker 3 of the inner layer 1 is detected, the wear degree is in a preset range, when the tracing marker 3 cannot be detected, the condition that the inner wall surface of the hose is worn to the position of the tracing marker 3 is shown, the wear degree reaches a certain degree, or the hose needs to be noticed or replaced, and the detection is very important for safe use of the hose in the high-pressure state.

The tracing marker 3 is a high-density metal sheet and can be detected by a handheld soft X-ray detector; or the tracing marker 3 is a radio frequency sheet, and the existence and the corresponding information of the radio frequency sheet are conveniently detected by a radio frequency detector; or the trace marker 3 is a high-density rubber sheet containing lead powder, and the rubber sheet can be better combined with the inner layer 1 and is detected by a soft X-ray detector. The detection instruments are all the existing mature technologies, the abrasion state of the inner wall body of the hose in the use state can be conveniently obtained through detection, the detection can be carried out without stopping the operation of the hose, and the operation efficiency of using the hose is greatly improved.

The inner layer 1 is at least of a two-layer structure, and the tracing markers 3 are arranged between layers of the inner layer 1 and at the interface between the inner layer 1 and the outer layer 2; through foretell tracer marker 3's setting, all be equipped with tracer marker 3 in the radial different positions of hose, along with the successive layer wearing and tearing of the internal face of hose, the tracer marker 3 of corresponding different positions can not be detected because of droing to learn the wearing and tearing situation of hose internal face, foretell structure or tracer marker 3's successive layer set up the monitoring that has greatly made things convenient for the hose under the user state, extremely useful to the security.

The inner layer 1 is made of wear-resistant materials and can be arranged in a multilayer structure, the tracing markers 3 can be arranged in multiple layers, in order to further facilitate the detection of the wear condition of the hose, each layer of the inner layer 1 made of the multilayer wear-resistant materials is made of materials with different colors, when the hose is in an out-of-service state, such as maintenance, transition and the like, the surface of the inner wall of the hose is directly observed, and the degree of wear of the inner wall surface of the hose can be directly obtained according to the color of the materials. The inner layer 1 is composed of two layers, namely a black glue layer 1-1 and a green glue layer 1-2 in sequence from inside to outside; or the inner layer 1 is three layers, namely a black glue layer 1-1, a green glue layer 1-2 and a yellow glue layer 1-3 from inside to outside; or the inner layer 1 is four layers, and comprises a black glue layer 1-1, a green glue layer 1-2, a yellow glue layer 1-3 and a red glue layer 1-4 in sequence from inside to outside, the thicknesses of the layers are the same or different, and the selection of the thickness of each layer is specifically determined according to the use requirements of the hose.

In order to further expand the application range of the hose capable of detecting the abrasion condition, the outer layer 2 of the hose sequentially comprises a reinforcing layer 2-1 and an outer rubber layer 2-2 from inside to outside, at least two layers of winding steel wires 2-1-1 are arranged in the reinforcing layer 2-1, or a winding cord fabric layer can be further arranged in the reinforcing layer 2-1, the winding angle of the winding steel wires 2-1-1 relative to the axial direction of the hose is 30-80 degrees, and the winding directions of the adjacent winding steel wires 2-1-1 are opposite, so that the internal stress of the hose can be eliminated as much as possible, and the radial supporting force and the axial tensile resistance of the hose can be greatly increased by the structure.

In order to avoid wrong identification when the hose is detected, each layer of interface of the inner layer 1 is provided with the tracer marker 3, the tracer markers 3 between different layers are spaced at a proper distance in the axial direction of the hose, and wrong identification information cannot occur when the handheld soft X-ray detector or the radio frequency detector detects the hose. In order to further ensure the accuracy of the detection information, the outer surface of the outer layer 2 of the hose is provided with a detection mark 4 corresponding to the tracer marker 3, the tracer marker 3 can be quickly and accurately confirmed and detected through the detection mark 4, and the detection efficiency can be greatly improved.

It has been described above that the inner layer 1 of the hose is made of a wear resistant material and that after trial and error the layers of the inner layer 1 are made of ultra high molecular weight polyethylene, or PVDF material, or elastomeric rubber or polyurethane material, or any combination of the above. Because the strength, hardness or rigidity of the materials have certain difference, and different materials are adopted for different layers, the comprehensive performance of the hose can be further improved, and simultaneously, the good wear-resisting property of the inner layer 1 is kept.

Foretell the utility model discloses a hose is particularly suitable for carrying the fluid that contains solid particle of high flow high pressure, when wear resistance is good, has the function of very convenient detectable wearing and tearing, and this hose specially adapted fracturing operation in oil field is compared with the steel pipe that current fracturing operation used, the utility model discloses a hose has splendid comprehensive properties, reduces the use amount of steel pipe, elbow and joint, can two point-to-point lug connection carry, and the dismantlement and the transportation of transition reduce by a wide margin, reduce the pulse vibration that fluid flow produced by a wide margin, reduce the damage of equipment and coupling, and the safety in utilization performance improves by a wide margin.

Claims (8)

1. A detectable hose comprising an inner layer (1) and an outer layer (2), characterised in that the inner layer (1) is provided with a detectable tracer marker (3).

2. The detectable tube according to claim 1, wherein the tracer marker (3) is a high density metal sheet or a radio frequency sheet or a rubber sheet containing lead powder.

3. The detectable hose according to claim 1 or 2, wherein the inner layer (1) is of at least two-layer construction, and the tracer marker (3) is disposed between the layers of the inner layer (1) and at the interface between the inner layer (1) and the outer layer (2).

4. The detectable tube according to claim 3, wherein the inner layer (1) is two layers, a black glue layer (1-1) and a green glue layer (1-2) in that order from the inside to the outside; or the inner layer (1) is three layers, and the black glue layer (1-1), the green glue layer (1-2) and the yellow glue layer (1-3) are arranged in sequence from inside to outside; or the inner layer (1) is four layers, and the black glue layer (1-1), the green glue layer (1-2), the yellow glue layer (1-3) and the red glue layer (1-4) are arranged in sequence from inside to outside, and the thicknesses of the layers are the same or different.

5. The detectable tube according to claim 4, wherein the outer layer (2) comprises, in order from the inside to the outside, a reinforcing layer (2-1) and an outer glue layer (2-2), the reinforcing layer (2-1) being provided with at least two layers (2-1-1) of wound steel wires.

6. A detectable hose according to claim 5, characterised in that the interfaces of the layers of the inner layer (1) are provided with the tracking markers (3) and that the tracking markers (3) of different layers are spaced from each other in the axial direction of the hose by a suitable distance.

7. A detectable tube as claimed in claim 6, characterised in that the outer surface of the tube is provided with a detection marker (4) at a position corresponding to the tracer marker (3).

8. The detectable tube of claim 7, wherein each of said inner layers (1) is comprised of ultra high molecular weight polyethylene, or PVDF material, or elastomeric rubber or polyurethane material, or any combination thereof.

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