High-temperature-resistant insulating glass fiber sleeve

Abstract

The utility model discloses a high-temperature-resistant insulating glass fiber sleeve, and relates to the technical field of glass fiber sleeves. The glass fiber pipe comprises a glass fiber pipe body, an insulating rubber layer is arranged on the inner wall of the glass fiber pipe body, a silica gel layer is arranged on the outer wall of the glass fiber pipe body, an inner pipe sleeve is arranged on the inner wall of the insulating rubber layer, an inner protective layer is arranged on the inner wall of the inner pipe sleeve, and an outer pipe sleeve is arranged on the outer wall of the silica gel layer. An outer protective layer is arranged on the outer wall of the outer pipe sleeve; the inner pipe sleeve and the outer pipe sleeve are arranged, and the glass fiber pipe, the silica gel layer and the insulating rubber layer are arranged between the inner pipe sleeve and the outer pipe sleeve, so that a complete glass fiber sleeve is formed, the glass fiber pipe serves as a pipe core, and the silica gel layer and the insulating rubber layer serve as a heat-resisting layer and an insulating layer correspondingly; therefore, the whole glass fiber sleeve has good high temperature resistance and insulation performance.

Description

Technical Field

[0001] The present application relates to the technical field of glass fiber sleeves, and in particular to high temperature resistant insulating glass fiber sleeves. Background Art

[0002] Glass fiber insulation sleeves are mainly used for electrical insulation materials. In modern industrial production, a large number of various cables need to be laid in various production occasions such as equipment, automobiles, and shipbuilding. Most of these cables need to be insulated and high-temperature resistant on the outside. This requires the corresponding sleeves to be installed on the cables to meet production and application requirements.

[0003] Most of the existing glass fiber sleeves are made of alkali-free glass fiber and silicone copolymer resin or polyurethane resin coated thereon. They have poor high temperature resistance and cannot be used in special high temperature working environments. They cannot achieve the effect of high temperature resistance. Therefore, the present application proposes a high temperature resistant insulating glass fiber sleeve. Utility Model Content

[0004] The purpose of the present application is to solve the problem of poor high temperature resistance of existing glass fiber sleeves, and to provide a high temperature resistant insulating glass fiber sleeve.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] High temperature resistant insulating fiberglass sleeve, including:

[0007] A glass fiber tube, wherein the inner wall of the glass fiber tube is provided with an insulating rubber layer, the outer wall of the glass fiber tube is provided with a silicone layer, the inner wall of the insulating rubber layer is provided with an inner tube sleeve, the inner wall of the inner tube sleeve is provided with an inner protective layer, the outer wall of the silicone layer is provided with an outer tube sleeve, and the outer wall of the outer tube sleeve is provided with an outer protective layer.

[0008] Furthermore, the insulating rubber layer is made of EPDM rubber.

[0009] Furthermore, the inner tube sleeve and the outer tube sleeve are both made of epoxy resin.

[0010] Furthermore, the inner protective layer comprises a chlorinated polyvinyl chloride layer arranged on the inner pipe sleeve, and an acrylic resin layer is arranged on the chlorinated polyvinyl chloride layer.

[0011] Furthermore, the outer protective layer comprises a polytetrafluoroethylene layer arranged on the outer tube sleeve, and an alumina ceramic layer is arranged on the polytetrafluoroethylene layer.

[0012] Furthermore, spiral strips are provided in both the insulating rubber layer and the silicone layer.

[0013] Furthermore, the two spiral strips have opposite directions of rotation.

[0014] Furthermore, the spiral strip is made of aerogel.

[0015] The beneficial effects of the present application are as follows: In the present application, an inner tube sleeve and an outer tube sleeve are provided, and a glass fiber tube, a silicone layer and an insulating rubber layer are provided between the two, so as to form a complete glass fiber sleeve. The glass fiber tube is the tube core, and the silicone layer and the insulating rubber layer serve as the heat-resistant layer and the insulating layer respectively, so that the glass fiber sleeve as a whole has good high temperature resistance and insulation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of this application;

[0017] Figure 2 It is a sectional view of the three-dimensional structure of the present application;

[0018] Figure 3 It is a three-dimensional structural diagram of part of this application;

[0019] Figure 4 This application Figure 2 Enlarged view of point A in the middle;

[0020] Figure numerals: 1, glass fiber tube; 2, insulating rubber layer; 3, silicone layer; 4, inner tube sleeve; 5, inner protective layer; 6, outer tube sleeve; 7, outer protective layer; 8, spiral strip; 501, chlorinated polyvinyl chloride layer; 502, acrylic resin layer; 701, polytetrafluoroethylene layer; 702, alumina ceramic layer. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0022] like Figure 1-Figure 4As shown, a high temperature resistant insulating glass fiber sleeve proposed in an embodiment of the present application comprises: a glass fiber tube 1, an insulating rubber layer 2 is provided on the inner wall of the glass fiber tube 1, a silicone layer 3 is provided on the outer wall of the glass fiber tube 1, an inner tube sleeve 4 is provided on the inner wall of the insulating rubber layer 2, an inner protective layer 5 is provided on the inner wall of the inner tube sleeve 4, an outer tube sleeve 6 is provided on the outer wall of the silicone layer 3, an outer tube sleeve 6 is provided on the outer wall of the outer tube sleeve 6, an outer protective layer 7 is provided on the outer wall of the outer tube sleeve 6, the insulating rubber layer 2 has a good insulating effect, silicone is also known as silica gel, is a highly active adsorption material, is an amorphous substance, the main component of silicone is silicon dioxide, it is soft, has good stability, adsorption and is not easy to burn, and has good high temperature resistance, the glass fiber tube 1 is used as the tube core, and cooperates with the inner tube sleeve 4, the insulating rubber layer 2, the silicone layer 3 and the outer tube sleeve 6 to form a complete sleeve, so that the sleeve as a whole not only has good insulation, but also has good high temperature resistance, and the inner and outer sides of the sleeve are protected respectively by the inner protective layer 5 and the outer protective layer 7, thereby improving its service life.

[0023] like Figure 4 As shown, in some embodiments, the insulating rubber layer 2 is made of EPDM rubber, which is a terpolymer of ethylene, propylene and non-conjugated dienes. The main polymer chain of EPDM is fully saturated. This property enables EPDM to resist heat, light, oxygen, and especially ozone. EPDM is essentially non-polar, resistant to polar solutions and chemicals, has low water absorption, and has good insulating properties, thereby improving the insulating performance of the bushing.

[0024] like Figure 4 As shown, in some embodiments, the material of the inner tube sleeve 4 and the outer tube sleeve 6 are both epoxy resin material. Epoxy resin has good physical and chemical properties, small set shrinkage rate, good product dimensional stability, high hardness, and good flexibility, so that the sleeve composed of the inner tube sleeve 4 and the outer tube sleeve 6 has good quality and long service life.

[0025] like Figure 4 As shown, in some embodiments, the inner protective layer 5 includes a chlorinated polyvinyl chloride layer 501 arranged on the inner tube sleeve 4, and an acrylic resin layer 502 is arranged on the chlorinated polyvinyl chloride layer 501. The chlorinated polyvinyl chloride is a product of further chlorination modification of polyvinyl chloride, and has excellent corrosion resistance, heat resistance, solubility, and flame retardancy. It can effectively improve the flame retardancy of the inner tube sleeve 4, thereby improving the overall flame retardancy of the glass fiber sleeve. When the glass fiber sleeve is sleeved on the cable, the inner wall of the inner tube sleeve 4 and the outer surface of the cable will generate a certain friction force. The acrylic resin layer 502 has good wear resistance and good anti-aging performance, and can effectively improve the wear resistance of the inner tube sleeve 4, so that when the cable is sleeved, the inner tube sleeve 4 is not easy to be worn and damaged, and is not easy to age, so as to play a role in protecting the inner tube sleeve 4.

[0026] like Figure 4 As shown, in some embodiments, the outer protective layer 7 includes a polytetrafluoroethylene layer 701 disposed on the outer tube sleeve 6, and an alumina ceramic layer 702 is disposed on the polytetrafluoroethylene layer 701. Polytetrafluoroethylene is a high molecular polymer obtained by polymerization of tetrafluoroethylene as a monomer, and has excellent chemical stability, acid and alkali resistance, and resistance to various organic solvents. It is almost insoluble in all solvents, and at the same time has electrical insulation and good anti-aging resistance, and can effectively play a role in corrosion protection of the outer tube sleeve 6. Alumina ceramics have the advantages of high hardness and excellent wear resistance, and can further improve the overall strength and wear resistance of the glass fiber sleeve. Since the glass fiber sleeve is exposed to the outside world as a whole, the outer tube sleeve 6 is effectively protected by the polytetrafluoroethylene layer 701 and the alumina ceramic layer 702.

[0027] like Figure 3 and Figure 4 As shown, in some embodiments, spiral strips 8 are provided in both the insulating rubber layer 2 and the silicone layer 3. By providing the spiral strips 8 in both the insulating rubber layer 2 and the silicone layer 3, when one point of the glass fiber casing is squeezed, the squeezing force will be transmitted to the spiral strips 8 corresponding to the point. Under the influence of the squeezing force, the spiral structure of the spiral strips 8 will generate circumferential tensile stress, thereby sharing the pressure at the pressure point of the glass fiber casing, thereby improving the compressive strength of the glass fiber casing, thereby improving its service life.

[0028] like Figure 4 As shown, in some embodiments, the two spiral strips 8 have opposite rotation directions, so that when compressed, the two circumferential tensile stresses are opposite, thereby further improving the overall compressive strength of the glass fiber sleeve.

[0029] like Figure 3 and Figure 4 As shown, in some embodiments, the spiral strip 8 is made of aerogel. Aerogel refers to a nano-scale porous solid material formed by replacing the liquid phase in the gel with gas through a sol-gel method using a certain drying method. The aerogel is very strong and durable. It can withstand a pressure equivalent to several thousand times its own mass, and can effectively improve the overall compression resistance, torsion resistance and bending resistance of the glass fiber casing. At the same time, aerogel is light in weight and is the lightest solid in the world. It can maximize the weight reduction of the glass fiber casing. In addition, its thermal conductivity and refractive index are also very low, and its insulation ability is good, which further improves the insulation of the glass fiber casing.

[0030] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. High temperature resistant insulating glass fiber casing, characterized in that: include: A glass fiber tube (1), wherein the inner wall of the glass fiber tube (1) is provided with an insulating rubber layer (2), the outer wall of the glass fiber tube (1) is provided with a silicone layer (3), the inner wall of the insulating rubber layer (2) is provided with an inner tube sleeve (4), the inner wall of the inner tube sleeve (4) is provided with an inner protective layer (5), the outer wall of the silicone layer (3) is provided with an outer tube sleeve (6), and the outer wall of the outer tube sleeve (6) is provided with an outer protective layer (7).

2. The high temperature resistant insulating glass fiber sleeve according to claim 1, characterized in that: The insulating rubber layer (2) is made of EPDM rubber.

3. The high temperature resistant insulating glass fiber sleeve according to claim 1, characterized in that: The inner tube sleeve (4) and the outer tube sleeve (6) are both made of epoxy resin.

4. The high temperature resistant insulating glass fiber sleeve according to claim 1, characterized in that: The inner protective layer (5) comprises a chlorinated polyvinyl chloride layer (501) arranged on the inner pipe sleeve (4), and an acrylic resin layer (502) is arranged on the chlorinated polyvinyl chloride layer (501).

5. The high temperature resistant insulating glass fiber sleeve according to claim 1, characterized in that: The outer protective layer (7) comprises a polytetrafluoroethylene layer (701) arranged on the outer tube sleeve (6), and an alumina ceramic layer (702) is arranged on the polytetrafluoroethylene layer (701).

6. The high temperature resistant insulating glass fiber sleeve according to claim 1, characterized in that: The insulating rubber layer (2) and the silicone layer (3) are both provided with spiral strips (8).

7. The high temperature resistant insulating glass fiber sleeve according to claim 6, characterized in that: The two spiral strips (8) have opposite directions of rotation.

8. The high temperature resistant insulating glass fiber sleeve according to claim 6, characterized in that: The material of the spiral strip (8) is aerogel.

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