High-pressure oil pipe

Abstract

The utility model relates to the technical field of oil pipe detection, and discloses a high-pressure oil pipe which comprises a pipe body, the pipe body is provided with an easy-to-deform section, and the easy-to-deform section is coated with an easy-to-damage coating. The easily-damaged coating is tightly combined with the outer wall of the easily-deformed section, when the high-pressure oil pipe is in a free state or a slightly stressed state, the easily-deformed section hardly deforms, and the coating is kept complete; in the installation process of the high-pressure oil pipe, when the installation coordinate position is deviated, the high-pressure oil pipe is abnormally installed through external force or the high-pressure oil pipe is deformed due to obvious one-way and multi-way external force in the installation process, the easily-damaged coating is prone to being broken, cracked or damaged due to deformation of the easily-deformed section, and therefore it is marked that the high-pressure oil pipe is in an abnormal installation state; and an installer is prompted to predict replacement or troubleshooting. The abnormal state of high-pressure oil pipe installation is directly reflected through breakage of the damageable coating, intuition and high efficiency are achieved, and the problems of high-pressure oil pipe cracks, sealing failure and the like caused by abnormal installation deformation and stress are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pipe detection, in particular to a high-pressure oil pipe. Background Art

[0002] The high-pressure oil pipe connects the input and output ends. There is a three-dimensional dimension between the two interfaces. Due to factors such as dimensional tolerance and assembly error, it is necessary to control the three-dimensional dimensions of the components related to the connection interface and the high-pressure oil pipe itself. In general, the three-coordinate measurement method is often used to measure the three-dimensional dimensions of both ends of the high-pressure oil pipe and detect compliance as a method to judge whether the high-pressure oil pipe can be installed normally.

[0003] The three-coordinate measurement method is used to assess whether the dimensions of high-pressure fuel pipe components meet the installation requirements. Only the high-pressure fuel pipe itself can be inspected. The manufacturing and installation errors of the connected interfaces and related components involved in the installation cannot be directly evaluated, or more complex three-coordinate measurement is required to achieve it. It cannot be applied to the actual product assembly process and is not a scalable method for quality control of high-pressure fuel pipe assembly. Utility Model Content

[0004] The utility model discloses a high-pressure oil pipe, which is used for judging the abnormal assembly state of the high-pressure oil pipe through the rupture of a vulnerable coating.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] A high-pressure oil pipe comprises: a pipe body, wherein the pipe body has an easily deformable section, and the easily deformable section is coated with a fragile coating. The fragile coating is tightly combined with the outer wall of the easily deformable section. When the high-pressure oil pipe is in a free state or a slightly stressed state, the easily deformable section hardly deforms, and the coating remains intact. During the installation of the high-pressure oil pipe, the easily deformable section may be deformed due to deviations in the installation coordinate position, abnormal installation using external force, or deformation caused by obvious unidirectional or multi-directional external forces during installation. The fragile coating is easily broken due to the deformation of the easily deformable section, and cracks or damage may occur, thereby indicating that the high-pressure oil pipe is in an abnormal installation state, prompting the installer to plan replacement or troubleshooting. The abnormal state of the high-pressure oil pipe installation is directly reflected by the rupture of the fragile coating, which is more intuitive and efficient than the three-coordinate measurement method, and can effectively avoid problems such as abnormal installation deformation, cracks in the high-pressure oil pipe caused by stress, and sealing failure.

[0007] Optionally, the vulnerable coating is made of ceramic, glass, paint or colloid.

[0008] Optionally, when the vulnerable coating is made of ceramic, metal powder or fiber material is mixed in the ceramic.

[0009] Optionally, the easily deformable section is a curved section.

[0010] Optionally, the vulnerable coating is coated on the outer side of the curved section.

[0011] Optionally, the vulnerable coating is also coated on the inner side of the curved section.

[0012] Optionally, a crack identification coating is further provided between the vulnerable coating and the tube body, and the color of the crack identification coating is darker than the color of the vulnerable coating.

[0013] Optionally, the color of the vulnerable coating is white or yellow, and the color of the crack identification coating is black. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A state diagram of the high-pressure oil pipe provided in the embodiment of the present application when no cracks occur;

[0015] Figure 2 A state diagram of a high-pressure oil pipe when cracks appear in an embodiment of the present application. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] refer to Figure 1 and Figure 2 The high-pressure oil pipe provided in the embodiment of the present application includes: a pipe body 1, both ends of the pipe body 1 can be connected to other parts through a joint 2, and the pipe body 1 has an easily deformable section 11, and the easily deformable section 11 is coated with a fragile coating S. The fragile coating S is tightly combined with the outer wall of the easily deformable section 11. When the high-pressure oil pipe is in a free state or a slightly stressed state, the easily deformable section 11 hardly deforms, and the coating remains intact; during the installation of the high-pressure oil pipe, the vulnerable coating S may be easily broken due to the deformation of the easily deformable section 11 due to deviations in the installation coordinate position, abnormal installation using external force, or deformation caused by obvious unidirectional or multi-directional external forces during the installation process, and cracks W or damage may occur, thereby marking that the high-pressure oil pipe is in an abnormal installation state, prompting the installer to expect replacement or troubleshooting. The rupture of the fragile coating S directly reflects the abnormal state of the high-pressure oil pipe installation, which is more intuitive and efficient than the three-coordinate measurement method, and can effectively avoid problems such as abnormal installation deformation, cracks W in the high-pressure oil pipe caused by stress, and sealing failure.

[0018] The strength of the vulnerable coating of the high-pressure oil pipe determines its sensitivity to abnormal stress. The material requirements, thickness and other key dimensions of the vulnerable coating can be set through design calculation and calibration methods, so that the magnitude of the rupture force corresponds to the required assembly deformation.

[0019] In a specific embodiment, the material of the fragile coating S is ceramic. Ceramics are more sensitive to abnormal stress on the high-pressure oil pipe. For situations where the installation accuracy of the high-pressure oil pipe is relatively high, using ceramics as a fragile coating can make cracks W more likely to appear, so that the high-pressure oil pipe can be found in time when it is in an abnormal stress state. In addition to ceramics, the fragile coating S can also be made of glass, paint or colloid. However, it is not limited to the above materials, as long as cracks W can be generated when abnormal stress is applied. Among them, glass is also more sensitive, while paint and colloid are less sensitive, which is suitable for scenarios where the deformation of the high-pressure oil pipe is not required.

[0020] In a specific embodiment, when the material of the fragile coating S is ceramic, metal powder or fiber-like materials are mixed in the ceramic, which can further adjust the crack sensitivity of the fragile coating S. For example, the fiber can connect different parts of the ceramic to reduce the sensitivity of the ceramic to abnormal stress, so as to adjust the sensitivity as needed.

[0021] In a specific embodiment, the easily deformable section 11 is a bending section. When the high-pressure oil pipe is subjected to abnormal stress, the bending section is a location where deformation is greater, and the vulnerable coating S is relatively easier to deform. Detecting cracks here makes it easier to find abnormal stress on the high-pressure oil pipe.

[0022] In a specific embodiment, the fragile coating S is coated on the outer side of the curved section. The outer side of the curved section is subjected to greater tensile stress and is more prone to cracks. The fragile coating S is relatively easier to deform. Detecting cracks here makes it easier to discover abnormal stress on the high-pressure oil pipe.

[0023] In a specific embodiment, the vulnerable coating S is also coated on the inner side of the curved section, and the inner side is also coated with the vulnerable coating S, so that the distribution of the cracks W can be observed more comprehensively, and the abnormal stress of the high-pressure oil pipe can be further understood.

[0024] In a specific embodiment, a crack identification coating is further provided between the vulnerable coating S and the pipe body 1. Once a crack W appears in the vulnerable coating S, the internal crack identification coating will be exposed. The color of the crack identification coating is darker than that of the vulnerable coating S, and the color difference between the crack W and other parts of the vulnerable coating S can be more obvious, so that maintenance personnel can more easily observe the crack W. The sensitivity of the crack identification coating to abnormal stress can be lower than that of the vulnerable coating S. When a crack W appears in the vulnerable coating S, the crack identification coating remains intact, so as to avoid that the crack identification coating cannot be revealed through the crack W, but the pipe body 1 is revealed.

[0025] In a specific embodiment, the color of the vulnerable coating S is white or yellow, and the color of the crack identification coating is black. White and yellow are both light-colored colors. Once a crack W occurs, the black color of the underlying crack identification coating will be revealed. The contrast between black and white or yellow is large, and the crack is very easy to identify.

[0026] It can be understood that, with respect to the color of the fragile coating S, any color that is conducive to showing the damage of the fragile coating S can achieve the above purpose.

[0027] In addition to the coating method shown in the figure, coating methods in other shapes, different positions, multiple points, and multiple directions can also achieve the above purpose.

[0028] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A high-pressure oil pipe, characterized in that: include: A tube body, the tube body having an easily deformable section, the easily deformable section being coated with a vulnerable coating; A crack identification coating is also provided between the vulnerable coating and the tube body, and the color of the crack identification coating is darker than the color of the vulnerable coating.

2. The high-pressure oil pipe according to claim 1, characterized in that: The material of the vulnerable coating is ceramic, glass, paint or colloid.

3. The high-pressure oil pipe according to claim 1, characterized in that: The easily deformable section is a curved section.

4. The high-pressure oil pipe according to claim 3, characterized in that: The vulnerable coating is coated on the outer side of the curved section.

5. The high-pressure oil pipe according to claim 4, characterized in that: The vulnerable coating is also coated on the inner side of the curved section.

6. The high-pressure oil pipe according to claim 1, characterized in that: The color of the vulnerable coating is white or yellow, and the color of the crack identification coating is black.

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