Flexible high-barrier oil delivery pipe

Abstract

The utility model relates to the technical field of delivery pipes, in particular to a flexible high-barrier oil delivery pipe, which comprises an outer protective layer, an inner protective layer and an inner protective layer, the reinforcing layer is arranged in the outer protection layer and used for improving the mechanical strength of the oil liquid conveying pipe; the isolation layer is arranged in the enhancement layer and used for enhancing the isolation effect of the oil liquid conveying pipe; the blocking inner layer is arranged in the isolating layer and used for preventing oil liquid in the oil liquid conveying pipe from leaking; the pressure sensor is arranged in the barrier inner layer and is used for detecting the conveying pressure of the oil in the oil conveying pipe; the flow sensor is arranged in the device blocking inner layer and used for detecting the conveying flow of oil in the oil conveying pipe. The structural stability of the oil delivery pipe is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a conveying pipe technical field especially relates to a flexible high barrier oil liquid conveying pipe. BACKGROUND

[0002] In the prior art, in today's industrial production and many fields, oil liquid conveying is a key basic link, and is widely used in petroleum chemical industry, energy exploitation, automobile manufacturing, food processing and aerospace and many other industries. With the rapid development of various industries and the continuous progress of technology, the performance requirements of oil liquid conveying pipe are increasingly stringent. In order to meet the growing industrial demand and strict safety and environmental protection standards, it is inevitable trend to develop a multilayer flexible high barrier oil liquid conveying pipe.

[0003] Chinese patent publication number: CN214789803U discloses an oil liquid heat preservation conveying pipe, comprising a conveying pipe body; characterized in that, the outer part of the conveying pipe body is provided with a heat conducting filler, the outer part of the heat conducting filler is provided with an upper heating plate and a lower heating plate, the bottom of the upper heating plate and the top of the lower heating plate are both provided with a power connector, the upper heating plate and the lower heating plate are electrically connected through the power connector; the outer part of the upper heating plate is provided with a wire, the wire is electrically connected with the upper heating plate, the outer part of the upper heating plate and the lower heating plate is provided with a heat preservation layer, the outer part of the heat preservation layer is provided with a heat insulation layer, the outer part of the heat insulation layer is provided with an upper protection pipe and a lower protection pipe. It can be seen that the oil liquid heat preservation conveying pipe has the problem that the upper and lower protection pipes may be broken and deformed when subjected to a large external force impact, which cannot effectively protect the internal components and causes the structural stability of the conveying pipe to decrease. SUMMARY

[0004] Therefore, the utility model provides a flexible high barrier oil liquid conveying pipe to overcome the problem that the upper and lower protection pipes may be broken and deformed when subjected to a large external force impact in the prior art, which cannot effectively protect the internal components and causes the structural stability of the conveying pipe to decrease.

[0005] To achieve the above object, the utility model provides a flexible high barrier oil delivery pipe, include: outer protective layer is used to protect oil delivery pipe from damage, the reinforcing layer is set in the inside of outer protective layer is used for improving the mechanical strength of oil delivery pipe, the isolation layer is set in the inside of reinforcing layer is used for enhancing the isolation effect of oil delivery pipe, the barrier inner layer is set in the inside of isolation layer is used for preventing oil delivery pipe inside oil leakage, including first PE inner core layer, the first maleic anhydride grafting adhesive layer of the outside of first PE inner core layer and the EVOH barrier layer of the outside of first maleic anhydride grafting adhesive layer, pressure sensor is set in the inside of barrier inner layer is used to detect the delivery pressure of oil in oil delivery pipe, flow sensor is set in the inside of barrier inner layer is used to detect the delivery flow of oil in oil delivery pipe.

[0006] Further, the outer protective layer, the reinforcing layer, the isolation layer and the barrier inner layer are the same length.

[0007] Further, the outer protective layer is sleeved outside the reinforcing layer.

[0008] Further, the industrial polyester filament is spirally wound on the outer surface of the isolation layer.

[0009] Further, the reinforcing layer is sleeved outside the isolation layer.

[0010] Further, the isolation layer is an aluminum foil material, and the isolation layer is sleeved outside the barrier inner layer.

[0011] Further, the barrier inner layer further includes a second maleic anhydride grafting adhesive layer and a second PE inner core layer.

[0012] Further, the second maleic anhydride grafting adhesive layer is sleeved outside the EVOH barrier layer, and the second PE inner core layer is sleeved outside the second maleic anhydride grafting adhesive layer.

[0013] Further, the oil delivery pipe further includes an alarm connected to the pressure sensor to issue an alarm when the delivery pressure of the oil exceeds a pressure threshold.

[0014] Further, the pressure sensor and the flow sensor are symmetrically distributed.

[0015] Compared with the prior art, the utility model discloses the beneficial effect lies in, the utility model discloses the outer protective layer, reinforcing layer, isolation layer and barrier inner layer are set up, the outer protective layer can effectively resist the damage of various physical factors to the pipeline of outside, greatly prolongs the service life of pipeline, reduces the pipeline leakage and the failure risk of the risk of external damage, ensures the continuity and stability of oil delivery, and the reinforcing layer makes the pipeline can bear higher internal pressure, gives the pipeline excellent tensile, bending and impact resistance, makes it can adapt to the complex and changeable installation environment and use condition, guarantees the safety and reliability of oil delivery, and the isolation layer blocks oxygen, water vapor and other possible material that pollutes oil or accelerates oil deterioration to enter the pipeline inside, improves the purity and quality stability of oil, and the barrier inner layer can prevent oil from leaking out of the pipeline inside, avoids the pollution to the surrounding environment, provides solid guarantee for the safe and efficient oil delivery, through setting up pressure sensor, the real time monitoring of oil delivery process is carried out, improves the safety of oil delivery, realizes the improvement of the structural stability of oil delivery pipe.

[0016] Further, the utility model discloses the reinforcing layer is made by the spiral winding of industrial dacron filament, and through its high strength, flexibility, corrosion resistance and wear resistance etc. Characteristics, provide comprehensive performance improvement for flexible high barrier oil delivery pipe, guarantee the continuity of the conveying process, reduce the leakage, production stoppage etc. Safety accident risk caused by pipeline failure.

[0017] Further, the utility model discloses the barrier inner layer is prepared by setting up first PE inner core layer, first maleic anhydride grafting adhesive layer, EVOH barrier layer, second maleic anhydride grafting adhesive layer and second PE inner core layer, and through the complementary advantage and synergistic effect of each layer material, provide excellent barrier performance, good flexibility and reliable structural stability for flexible high barrier oil delivery pipe. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic diagram for the flexible high barrier oil delivery pipe of the utility model embodiment;

[0019] Figure 2 It is cross section structure schematic diagram for the flexible high barrier oil delivery pipe of the utility model embodiment;

[0020] The signs are as follows: 1-first PE inner core layer, 2-first maleic anhydride grafting adhesive layer, 3-EVOH barrier layer, 4-second maleic anhydride grafting adhesive layer, 5-second PE inner core layer, 6-isolation layer, 7-reinforcing layer, 8-outer protective layer, 9-pressure sensor, 10-flow sensor. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the utility model more clearly and obviously, the utility model is further described below in combination with examples; it should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0022] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model and not to limit the protection scope of the utility model.

[0023] It should be noted that, in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating the direction or positional relationship terms are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description and is not indicative or suggestive of the device or element having a specific orientation, being constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0024] In addition, it should also be noted that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Please refer to Figure 1 and Figure 2 The utility model discloses a flexible high-barrier oil liquid conveying pipe, including:

[0026] The outer protective layer 8 is used to protect the oil liquid conveying pipe from damage;

[0027] The reinforcing layer 7 is arranged inside the outer protective layer 8 and is used to improve the mechanical strength of the oil liquid conveying pipe;

[0028] The isolation layer 6 is arranged inside the reinforcing layer 7 and is used to enhance the isolation effect of the oil liquid conveying pipe;

[0029] The barrier inner layer is arranged inside the isolation layer 6 and is used to prevent oil leakage inside the oil liquid conveying pipe, including a first PE inner core layer 1, a first maleic anhydride grafting adhesive layer 2 sleeved outside the first PE inner core layer 1 and an EVOH barrier layer 3 sleeved outside the first maleic anhydride grafting adhesive layer 2;

[0030] a pressure sensor 9 arranged inside the barrier inner layer to detect the conveying pressure of the oil in the oil conveying pipe;

[0031] a flow sensor 10 arranged inside the barrier inner layer to detect the conveying flow of the oil in the oil conveying pipe.

[0032] It can be understood that the relative position relationship between the first maleic anhydride grafting adhesive layer 2 and the first PE inner core layer 1 is a preferred embodiment, and those skilled in the art can adaptively adjust the size of the first maleic anhydride grafting adhesive layer 2 and the first PE inner core layer 1 according to actual conditions on the premise of meeting the axial symmetry position relationship between the first maleic anhydride grafting adhesive layer 2 and the first PE inner core layer 1.

[0033] It can be understood that the relative position relationship between the EVOH barrier layer 3 and the first maleic anhydride grafting adhesive layer 2 is a preferred embodiment, and those skilled in the art can adaptively adjust the size of the EVOH barrier layer 3 and the first maleic anhydride grafting adhesive layer 2 according to actual conditions on the premise of meeting the axial symmetry position relationship between the EVOH barrier layer 3 and the first maleic anhydride grafting adhesive layer 2.

[0034] In the implementation, the outer protective layer 8 can effectively resist the damage of various physical factors from the outside to the pipeline, greatly prolongs the service life of the pipeline, reduces the risk of pipeline leakage and failure caused by external damage, ensures the continuity and stability of oil conveying, the reinforcing layer 7 enables the pipeline to withstand higher internal pressure, endows the pipeline with excellent tensile, bending and impact resistance, so that it can adapt to complex and variable installation environment and use conditions, and ensures the safety and reliability of oil conveying, the isolation layer 6 effectively blocks oxygen, water vapor and other substances that may contaminate oil or accelerate oil deterioration from entering the pipeline, improves the purity and quality stability of oil, and the barrier inner layer can tightly prevent oil from leaking out of the pipeline, avoids pollution to the surrounding environment, provides a solid guarantee for safe and efficient oil conveying, and through the pressure sensor 9, the oil conveying process is monitored in real time, the safety of oil conveying is improved, and the structural stability of the oil conveying pipe is improved.

[0035] Specifically, the outer protective layer 8, the reinforcing layer 7, the isolation layer 6 and the barrier inner layer have the same length.

[0036] Specifically, the outer protective layer 8 is sleeved outside the reinforcing layer 7.

[0037] It can be understood that the relative position relationship of the outer protective layer 8 and the reinforcing layer 7 is a preferred embodiment, and the size of the outer protective layer 8 and the reinforcing layer 7 can be adaptively adjusted according to actual conditions under the premise of meeting the axial symmetric position relationship of the outer protective layer 8 and the reinforcing layer 7.

[0038] Specifically, the industrial polyester filament is spirally wound on the outer surface of the isolation layer 6.

[0039] In the implementation, the reinforcing layer 7 is made of industrial polyester filaments spirally wound, and the high strength, flexibility, corrosion resistance and wear resistance of the reinforcing layer 7 provide comprehensive performance improvement for the flexible high-barrier oil liquid conveying pipe, guarantee the continuity of the conveying process, and reduce the risk of safety accidents such as leakage and shutdown caused by pipeline failure.

[0040] Specifically, the reinforcing layer 7 is sleeved outside the isolation layer 6.

[0041] It can be understood that the relative position relationship of the reinforcing layer 7 and the isolation layer 6 is a preferred embodiment, and the size of the reinforcing layer 7 and the isolation layer 6 can be adaptively adjusted according to actual conditions under the premise of meeting the axial symmetric position relationship of the reinforcing layer 7 and the isolation layer 6.

[0042] Specifically, the isolation layer 6 is an aluminum foil material, and the isolation layer 6 is sleeved outside the barrier inner layer.

[0043] It can be understood that the relative position relationship of the isolation layer 6 and the barrier inner layer is a preferred embodiment, and the size of the isolation layer 6 and the barrier inner layer can be adaptively adjusted according to actual conditions under the premise of meeting the axial symmetric position relationship of the isolation layer 6 and the barrier inner layer.

[0044] Specifically, the barrier inner layer further comprises a second maleic anhydride grafting adhesive layer 4 and a second PE inner core layer 5.

[0045] In the implementation, the barrier inner layer is prepared by co-extrusion of the first PE inner core layer 1, the first maleic anhydride grafting adhesive layer 2, the EVOH barrier layer 3, the second maleic anhydride grafting adhesive layer 4 and the second PE inner core layer 5, and the complementary advantages and synergistic effect of the materials of each layer provide excellent barrier performance, good flexibility and reliable structural stability for the flexible high-barrier oil liquid conveying pipe.

[0046] Specifically, the second maleic anhydride grafting adhesive layer 4 is sleeved outside the EVOH barrier layer 3, and the second PE inner core layer 5 is sleeved outside the second maleic anhydride grafting adhesive layer 4.

[0047] It can be understood that the relative position relationship between the second maleic anhydride grafting adhesive layer 4 and the EVOH barrier layer 3 is a preferred embodiment, and those skilled in the art can adaptively adjust the size of the second maleic anhydride grafting adhesive layer 4 and the EVOH barrier layer 3 according to actual conditions on the premise of meeting the axial symmetry position relationship between the second maleic anhydride grafting adhesive layer 4 and the EVOH barrier layer 3.

[0048] It can be understood that the relative position relationship between the second PE inner core layer 5 and the second maleic anhydride grafting adhesive layer 4 is a preferred embodiment, and those skilled in the art can adaptively adjust the size of the second PE inner core layer 5 and the second maleic anhydride grafting adhesive layer 4 according to actual conditions on the premise of meeting the axial symmetry position relationship between the second PE inner core layer 5 and the second maleic anhydride grafting adhesive layer 4.

[0049] Specifically, the oil liquid conveying pipe further comprises an alarm connected with the pressure sensor 9, which is used to issue an alarm when the conveying pressure of the oil liquid exceeds the pressure threshold value.

[0050] Specifically, the pressure threshold value can be set according to the needs of the actual application environment.

[0051] Specifically, the alarm information issued by the pressure sensor 9 is transmitted to the visual interface wirelessly, and the technical personnel processes according to the specific content of the alarm information.

[0052] Specifically, the pressure sensor and the flow sensor are symmetrically distributed.

[0053] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. On the premise of not deviating from the principles of the utility model, those skilled in the art can make equivalent changes or replacements to related technical features, and the technical schemes after the changes or replacements will all fall within the protection scope of the utility model.

Claims

1. A flexible high-barrier oil liquid delivery tube, characterized by, The oil liquid conveying pipe comprises: an outer protective layer for protecting the oil liquid conveying pipe from damage; a reinforcing layer arranged inside the outer protective layer for improving the mechanical strength of the oil liquid conveying pipe; an isolation layer arranged inside the reinforcing layer for enhancing the isolation effect of the oil liquid conveying pipe; a barrier inner layer arranged inside the isolation layer for preventing oil liquid inside the oil liquid conveying pipe from leaking, comprising a first PE inner core layer, a first maleic anhydride grafting adhesive layer arranged outside the first PE inner core layer, and an EVOH barrier layer arranged outside the first maleic anhydride grafting adhesive layer; a pressure sensor arranged inside the barrier inner layer for detecting the conveying pressure of the oil liquid in the oil liquid conveying pipe; a flow sensor arranged inside the barrier inner layer for detecting the conveying flow of the oil liquid in the oil liquid conveying pipe.

2. The flexible high barrier oil liquid delivery tube according to claim 1, wherein, The outer protective layer, the reinforcing layer, the isolation layer, and the barrier inner layer have the same length.

3. The flexible high barrier oil liquid delivery tube according to claim 2, wherein, The outer protective layer is arranged outside the reinforcing layer.

4. The flexible high barrier oil liquid delivery tube according to claim 3, wherein, Industrial polyester filaments are spirally wound on the outer surface of the isolation layer.

5. The flexible high barrier oil liquid delivery tube according to claim 4, wherein, The reinforcing layer is arranged outside the isolation layer.

6. The flexible high barrier oil liquid delivery tube according to claim 5, wherein, The isolation layer is an aluminum foil material, and the isolation layer is arranged outside the barrier inner layer.

7. The flexible high barrier oil liquid delivery tube according to claim 6, wherein, The barrier inner layer further comprises a second maleic anhydride grafting adhesive layer and a second PE inner core layer.

8. The flexible high barrier oil liquid delivery tube according to claim 7, wherein, The second maleic anhydride grafting adhesive layer is arranged outside the EVOH barrier layer, and the second PE inner core layer is arranged outside the second maleic anhydride grafting adhesive layer.

9. The flexible high barrier oil liquid delivery tube according to claim 8, wherein, The oil liquid conveying pipe further comprises an alarm connected to the pressure sensor for issuing an alarm when the conveying pressure of the oil liquid exceeds a pressure threshold.

10. The flexible high barrier oil liquid delivery tube according to claim 9, wherein, The pressure sensor and the flow sensor are symmetrically distributed.

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