Teflon sleeve for electric power system

Abstract

The utility model relates to the technical field of electric power, in particular to a Teflon sleeve for an electric power system, which comprises a surface layer, a waterproof layer arranged on the inner side of the surface layer, a flame-retardant layer arranged on the inner side of the waterproof layer, and an inner layer arranged on the inner side of the flame-retardant layer. The protective layer comprises an elastic sleeve arranged between the surface layer and the waterproof layer, a mounting hole is formed in the surface of the elastic sleeve, a capsule bonded with the surface layer is embedded in the mounting hole, and the capsule is filled with sealing glue; the protective layer can timely seep sealing glue to automatically repair gaps after the surface layer is pulled to be damaged, so that the expansion of the damage degree of the surface layer surface can be prevented to improve the protection effect of the surface layer on the inner side structure, meanwhile, repair can be automatically and timely completed, active maintenance of workers is not needed, and the working efficiency is improved. And the maintenance burden of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power, in particular to a Teflon sleeve for an electric power system. Background Art

[0002] Power Teflon tubing, also known as polytetrafluoroethylene (PTFE) tubing, is widely used in the power industry due to its high-temperature resistance, corrosion resistance, high insulation, and non-stick properties. As a key component in applications such as wire and cable sheathing, transformer protection, and chemical fluid transportation, it effectively ensures safe power transmission and prevents mechanical damage and chemical corrosion.

[0003] A Chinese patent discloses a pressure-resistant Teflon sleeve (authorization announcement number CN220754254U). By providing a buffer strip, an elastic ring, an elastic rope and a first cavity, it can achieve a multi-level buffering effect to protect the tube body. When subjected to external pressure, the external force squeezes the elastic ring and the elastic rope to deform and absorb vibration, thereby playing a buffering role. The fixing block is located in the fixing groove to increase stability. At the same time, the elastic ring and the elastic rope can increase the overall toughness of the sleeve, and the pressure resistance effect is good. The subsequent force is transmitted to the buffer layer for buffering, while the buffer strip is compressed.

[0004] Although the above device uses a variety of materials with different properties to enhance the functionality of the Teflon sleeve, when the outermost outer tube is damaged due to external factors such as extrusion and wear, it is difficult for staff to perform timely maintenance. At this time, the material inside the outer tube is exposed, increasing the probability of corrosion or damage to the material inside the outer tube, thereby shortening the practicality of the Teflon sleeve.

[0005] Therefore, a Teflon bushing for an electric power system is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the present invention is to provide a Teflon sleeve for an electric power system in order to solve the above problems, thereby improving the problem that the existing Teflon sleeve for an electric power system is difficult to be maintained in time after being damaged by external forces, thereby shortening the service life of the Teflon sleeve.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions, a Teflon sleeve for an electric power system, comprising:

[0008] The surface layer is provided with a waterproof layer on the inner side of the surface layer, the inner side of the waterproof layer is provided with a flame retardant layer, and the inner side of the flame retardant layer is provided with an inner layer.

[0009] Preferably, the protective layer includes an elastic sleeve arranged between the surface layer and the waterproof layer, the surface of the elastic sleeve is provided with a mounting hole, the interior of the mounting hole is embedded with a capsule bonded to the surface layer, the interior of the capsule is filled with sealing glue, and the protective layer can timely seep out the sealing glue to repair the gap by itself after the surface layer is damaged. This can not only prevent the expansion of the damage degree of the surface layer to improve the protection effect of the surface layer on the inner structure, but also can complete the repair by itself and in time, without the need for active maintenance by the staff, thereby reducing the maintenance burden of the staff.

[0010] Preferably, the number of the mounting holes and the number of the capsules are the same and are no less than ten. The mounting holes are distributed in a ring shape on the surface of the elastic sleeve around the axis of the elastic sleeve, which can expand the scope of protection and repair of the surface.

[0011] Preferably, the interior of the sealing glue is filled with flame retardant coating, which not only can improve the flame retardant effect of the Teflon pipe, but also can make the repaired part of the sealing glue more obvious, so that the staff can evaluate and maintain the part.

[0012] Preferably, a cavity is provided inside the capsule, and the cavity is arranged between the waterproof layer and the sealing glue, which can increase the deformation degree of the entire protective layer to achieve an improved protection effect on the cables inside the inner layer.

[0013] Preferably, the interior of the cavity is filled with compressed gas, and the compressed gas is a nitrogen material component, which can not only apply a thrust toward the surface of the sealing glue, but also actively squeeze out the sealing glue when the capsule is damaged, so as to improve the effective utilization rate of the sealing glue. At the same time, when the Teflon sleeve catches fire, the released compressed nitrogen can also blow away the surrounding oxygen, increasing the difficulty of combustion of the surrounding fire points.

[0014] Preferably, a grid is embedded in the interior of the elastic sleeve, and the grid is staggered with the mounting holes. The grid is made of aramid fiber material, which not only increases the tensile strength of the elastic sleeve, but also the aramid fiber itself has good flame retardancy and electrical insulation, making the aramid fiber perform well in safety protection and electrical applications.

[0015] The beneficial effects of the utility model are:

[0016] When the surface layer is damaged, the protective layer can leak out sealing glue in time to repair the gap by itself. This can not only prevent the damage on the surface from spreading, thereby improving the protection effect of the surface layer on the inner structure, but also can complete the repair by itself and in time, without the need for active maintenance by the staff, thus reducing the maintenance burden on the staff;

[0017] The compressed gas made of nitrogen can not only apply a thrust toward the surface of the sealing glue, but also actively squeeze out the sealing glue when the capsule is damaged, so as to improve the effective utilization rate of the sealing glue. At the same time, when the Teflon sleeve catches fire, the released compressed nitrogen can also blow away the surrounding oxygen, increasing the difficulty of combustion of the surrounding fire points. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0020] Figure 3 for Figure 2 A magnified view of middle A;

[0021] Figure 4 This is an explosion diagram of the utility model.

[0022] In the figure: 1, surface layer; 2, waterproof layer; 3, flame retardant layer; 4, inner layer; 5, protective layer; 51, elastic sleeve; 52, mounting hole; 53, capsule; 54, sealing glue; 55, cavity; 56, grid. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] When implementing: Figure 1-4 As shown, a Teflon sleeve for an electric power system comprises:

[0025] A surface layer 1, a waterproof layer 2 is provided on the inner side of the surface layer 1, a flame retardant layer 3 is provided on the inner side of the waterproof layer 2, and an inner layer 4 is provided on the inner side of the flame retardant layer 3;

[0026] The waterproof layer 2 is made of polyethylene, which has excellent waterproof and moisture-proof properties. By applying this waterproof coating, the waterproof level of the inner layer 4 can be improved, ensuring that it can still function normally in harsh external environments.

[0027] The flame retardant layer 3 is a sheath woven from aramid fibers, and the sheath is blended with the waterproof layer 2 made of polyethylene. Using aramid fibers as the flame retardant layer 3 of the inner layer 4 can significantly improve the fire resistance of the inner layer 4, enhance mechanical strength, reduce weight, extend service life, and improve electrical performance.

[0028] like Figure 3 and Figure 4 As shown, the protective layer 5 includes an elastic sleeve 51 disposed between the surface layer 1 and the waterproof layer 2. A mounting hole 52 is opened on the surface of the elastic sleeve 51. A capsule 53 bonded to the surface layer 1 is embedded in the mounting hole 52. The capsule 53 is filled with sealing glue 54.

[0029] The elastic sleeve 51 is made of flame-retardant rubber, a material with excellent fire and mechanical properties. Compared to ordinary rubber materials, it can resist the spread of flames at high temperatures and is less likely to produce toxic gases and smoke, effectively reducing the risk of fire. Furthermore, flame-retardant rubber exhibits excellent physical and mechanical properties, such as tensile strength, wear resistance, oil resistance, and weather resistance. The specific material should be selected based on actual conditions and will not be discussed here. The number of mounting holes 52 and capsules 53 is the same, and both are no less than ten. The mounting holes 52 are distributed in a ring-shaped pattern on the surface of the elastic sleeve 51 around the axis of the elastic sleeve 51.

[0030] The interior of the sealant 54 is filled with a colored flame-retardant coating. The flame-retardant fuel can be an organosilicon flame retardant. Organosilicon flame retardants have excellent heat resistance and stability, maintaining a good flame-retardant effect even at high temperatures. They are generally compatible with the organic components in the sealant 54 and are easy to disperse and mix. The specific mixing method should be selected according to the actual situation and is not detailed here.

[0031] A cavity 55 is defined inside the capsule 53 , and the cavity 55 is disposed between the waterproof layer 2 and the sealing glue 54 . The cavity 55 is filled with compressed gas, which is a nitrogen material component.

[0032] A grid 56 is embedded in the interior of the elastic sleeve 51 and interlaced with the mounting holes 52. The grid 56 is a component of aramid fiber material. Aramid fiber exhibits excellent load-bearing and supporting capabilities due to its high strength and high modulus properties. At the same time, its heat resistance and corrosion resistance ensure the long-term stability of the material in harsh environments. Coupled with good flame retardancy and electrical insulation, aramid fiber performs well in safety protection and electrical applications.

[0033] When using the present invention, the user first cuts off a Teflon sleeve of the corresponding length. If the cut happens to puncture the capsule 53, the user needs to wipe off the sealing glue 54 that has leaked out of the capsule 53. Then the staff passes the corresponding cable through the inner side of the inner layer 4. At this time, the staff can install the Teflon sleeve and the corresponding cable in the corresponding position.

[0034] When the surface layer 1 is worn out, the elastic sleeve 51 and the capsule 53 together form an annular sheath to prevent the waterproof layer 2 from being exposed to the outside. When the capsule 53 is worn out, the sealing glue 54 seeps out and fills the corresponding gaps, repairing and sealing the corresponding gaps on the surface layer 1. This not only reseals the surface layer 1 to improve the protection effect of the surface layer 1 on the inner side, but also completes the repair automatically and in time without the need for active maintenance by the staff. In addition, since the sealing glue 54 is filled with colored flame retardant coating, it is convenient for the staff to observe the damaged area during the inspection and maintenance process, so that the staff can evaluate and maintain the area.

[0035] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A Teflon casing for a power system, characterized in that: include: A surface layer (1), a waterproof layer (2) is provided on the inner side of the surface layer (1), a flame retardant layer (3) is provided on the inner side of the waterproof layer (2), and an inner layer (4) is provided on the inner side of the flame retardant layer (3); A protective layer (5), the protective layer (5) comprising an elastic sleeve (51) disposed between the surface layer (1) and the waterproof layer (2), a mounting hole (52) being provided on the surface of the elastic sleeve (51), a capsule (53) bonded to the surface layer (1) being embedded and mounted inside the mounting hole (52), and the interior of the capsule (53) being filled with sealing glue (54).

2. The Teflon sleeve for a power system according to claim 1, characterized in that: The number of the mounting holes (52) and the number of the capsules (53) are the same and are no less than ten. The mounting holes (52) are distributed in a ring shape on the surface of the elastic sleeve (51) around the axis of the elastic sleeve (51).

3. The Teflon sleeve for a power system according to claim 1, characterized in that: The interior of the sealing glue (54) is filled with flame retardant paint.

4. The Teflon sleeve for an electric power system according to claim 1, characterized in that: A cavity (55) is provided inside the capsule (53), and the cavity (55) is arranged between the waterproof layer (2) and the sealing glue (54).

5. The Teflon sleeve for an electric power system according to claim 4, characterized in that: The interior of the cavity (55) is filled with compressed gas.

6. The Teflon sleeve for an electric power system according to claim 5, characterized in that: The compressed gas is a nitrogen material component.

7. The Teflon sleeve for an electric power system according to claim 1, characterized in that: A grid (56) is embedded and installed inside the elastic sleeve (51), and the grid (56) is staggered with the mounting holes (52).

8. The Teflon sleeve for an electric power system according to claim 7, characterized in that: The grid (56) is a component made of aramid fiber material.

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