CN215730968U

CN215730968U - High-strength explosion-proof B1-grade cable

Info

Publication number: CN215730968U
Application number: CN202121260656.9U
Authority: CN
Inventors: 李翔
Original assignee: Guangdong Aotong Special Cable Co ltd
Current assignee: Guangdong Aotong Special Cable Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-02-01
Anticipated expiration: 2031-06-07

Abstract

A high-strength explosion-proof B1-grade cable comprises at least four wire cores, wherein wire core insulating layers are arranged on the peripheries of the wire cores; a wire core filling layer is arranged on the periphery of the wire core insulating layer; a fireproof layer is arranged at the periphery of the wire core filling layer; a shielding layer is arranged at the periphery of the fireproof layer; a rubber layer is arranged at the periphery of the shielding layer; a buffer layer is arranged at the periphery of the rubber layer; and an explosion-proof layer is arranged on the periphery of the buffer layer. The high-strength explosion-proof B1-grade cable is provided with the buffer layer and the explosion-proof layer, when the inside of the cable is damaged or even exploded, generated fragments are blocked by the buffer layer and are stuck, so that secondary damage caused by fragment diffusion is prevented, the explosion-proof layer is made of rubber, the cable can be effectively protected, and the safety and the reliability of the working environment of the cable are guaranteed.

Description

High-strength explosion-proof B1-grade cable

Technical Field

The utility model relates to the technical field of cables, in particular to a high-strength explosion-proof B1-grade cable.

Background

In daily life, an explosion-proof cable means that when a short circuit or electric spark occurs on a line, surrounding flammable and explosive gas cannot be ignited sufficiently. The explosion-proof cable has the characteristics of low capacitance, difficult charge storage, good shielding performance and antistatic performance. The Chinese patent discloses an explosion-proof flame-retardant cable (CN 102751022A), which comprises a cable core, wherein an insulating layer is wrapped outside the cable core, the insulating layer comprises a first insulating layer and a second insulating layer, the first insulating layer is a mica tape, the first insulating layer is wound outside the cable core, the second insulating layer is unsaturated polyester resin, the second insulating layer is wrapped outside the first insulating layer, a polyamide flame-retardant layer is wrapped outside the insulating layer, and a high manganese steel protective sleeve is wrapped outside the polyamide flame-retardant layer. The flame-retardant and explosion-proof cable has the advantages that the wear resistance, the water resistance and the flame retardance are greatly improved, the insulation effect is good, the flame-retardant and explosion-proof cable has higher tensile strength, bending strength, compression strength and the like, the impact resistance is excellent, the cable is not easy to deform, the cable cannot be influenced even if the cable is used under the condition of severe environment, the cable is safe and reliable, and the service life is longer. However, the explosion-proof flame-retardant cable is not easy to bend due to the high manganese steel shell, and inconvenience is caused during installation.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a strength explosion-proof B1-grade cable which not only meets the requirements of explosion resistance and flame retardance, but also is easy to bend.

A high-strength explosion-proof B1-grade cable comprises at least four wire cores and is characterized in that a wire core insulating layer is arranged on the periphery of each wire core; a wire core filling layer is arranged on the periphery of the wire core insulating layer; a fireproof layer is arranged at the periphery of the wire core filling layer; a shielding layer is arranged at the periphery of the fireproof layer; a rubber layer is arranged at the periphery of the shielding layer; a buffer layer is arranged at the periphery of the rubber layer; and an explosion-proof layer is arranged on the periphery of the buffer layer.

Preferably, the sinle silk filling layer set up to glass fiber, glass fiber is the inorganic non-metallic material of a performance excellence, has stronger thermal insulation performance and insulating properties, can play the effect of protection sinle silk.

Preferably, the fireproof layer is arranged as a mica tape or a mica insulation product, and has excellent high-temperature resistance and combustion resistance.

Preferably, the shielding layer is arranged as a copper strip, and the copper strip can effectively isolate external electromagnetic interference, so that faults caused by the external electromagnetic interference are avoided.

Preferably, the buffer layer comprises a buffer framework; the buffer framework is made of PVB material; the buffer framework evenly separates at least three buffer cavities from the buffer layer, and the PVB film can absorb impact energy without generating broken pieces, has excellent sound insulation, light control, heat preservation, heat insulation, shock resistance and other performances, and can effectively resist the impact caused by explosion without generating fragments.

Preferably, the explosion-proof layer is arranged as a common explosion-proof hose on the market, and the explosion-proof hose has the advantages of flame resistance, corrosion resistance, water resistance, aging resistance, good flexibility, firm structure, reliable operation and the like.

Has the advantages that: the high-strength explosion-proof B1-grade cable is provided with the buffer layer and the explosion-proof layer, when the inside of the cable is damaged or even exploded, the generated fragments are blocked and stuck by the buffer layer, so that secondary damage caused by fragment diffusion is prevented, the explosion-proof layer is made of rubber, the cable can be effectively protected, the requirements of explosion prevention and flame retardance are met, the cable can be easily bent, and the safety and reliability of the working environment of the cable are guaranteed.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic cross-sectional view of the present invention.

In the attached drawing, 1, a wire core; 2. a core insulating layer; 3. a wire core filling layer; 4. a fire barrier layer; 5. a shielding layer; 6. a rubber layer; 7. a buffer layer; 8. buffering the framework; 9. a buffer cavity; 10. and an explosion-proof layer.

Detailed Description

A high-strength explosion-proof B1-grade cable comprises at least four wire cores 1, wherein the periphery of each wire core 1 is provided with a wire core 1 insulating layer; a wire core 1 filling layer is arranged on the periphery of the wire core 1 insulating layer; a fireproof layer 4 is arranged at the periphery of the filling layer of the wire core 1; a shielding layer 5 is arranged on the periphery of the fireproof layer 4; a rubber layer 6 is arranged on the periphery of the shielding layer 5; a buffer layer 7 is arranged on the periphery of the rubber layer 6; and an explosion-proof layer 10 is arranged on the periphery of the buffer layer 7. The 1 filling layer of sinle silk set up to glass fiber, glass fiber is the inorganic non-metallic material of a performance excellence, has stronger adiabatic insulation performance and insulating properties, can play the effect of protection sinle silk 1. The fireproof layer 4 is set to be a mica tape and a mica insulation product, and has excellent high-temperature resistance and combustion resistance, the shielding layer 5 is set to be a copper tape, and the copper tape can effectively isolate external electromagnetic interference, so that faults caused by the external electromagnetic interference are avoided. The buffer layer 7 comprises a buffer framework 8; the buffer framework 8 is made of PVB material; buffer skeleton 8 evenly separate at least three buffering cavity 9 with buffer layer 7, the PVB membrane can absorb impact energy, does not produce broken piece, and excellent sound insulation, light-operated keeps warm in addition, thermal-insulated, performances such as taking precautions against earthquakes can effectively resist the impact that the explosion caused and do not produce the piece. The explosion-proof layer 10 is arranged as a common explosion-proof hose on the market, and the explosion-proof hose has the advantages of flame resistance, corrosion resistance, water resistance, aging resistance, good flexibility, firm structure, reliable operation and the like. The high-strength explosion-proof B1-grade cable is provided with the buffer layer 7 and the explosion-proof layer 10, when the interior of the cable is damaged or even exploded, generated fragments are blocked by the buffer layer 7 and are adhered, so that secondary damage caused by fragment diffusion is prevented, the explosion-proof layer 10 is made of rubber, the cable can be effectively protected, and the safety and reliability of the working environment of the cable are guaranteed.

It will be understood that the above description is only illustrative of certain embodiments of the present invention, and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A high-strength explosion-proof B1-grade cable comprises at least four wire cores (1), and is characterized in that the periphery of each wire core (1) is provided with a wire core (1) insulating layer; a wire core (1) filling layer is arranged on the periphery of the wire core (1) insulating layer; a fireproof layer (4) is arranged at the periphery of the filling layer of the wire core (1); a shielding layer (5) is arranged on the periphery of the fireproof layer (4); a rubber layer (6) is arranged on the periphery of the shielding layer (5); a buffer layer (7) is arranged on the periphery of the rubber layer (6); and an explosion-proof layer (10) is arranged on the periphery of the buffer layer (7).

2. The high-strength explosion-proof B1-class cable according to claim 1, wherein the core (1) filling layer is made of glass fiber.

3. The high-strength explosion-proof B1-grade cable according to claim 1, wherein the fire-proof layer (4) is provided as mica tape.

4. The high-strength explosion-proof B1-class cable according to claim 1, wherein the shielding layer (5) is provided as a copper tape.

5. The high-strength explosion-proof B1-class cable according to claim 1, wherein the buffer layer (7) comprises a buffer skeleton (8); the buffer framework (8) is made of PVB material; the buffer framework (8) uniformly separates the buffer layer (7) into at least three buffer cavities (9).

6. A high strength explosion-proof B1 grade cable according to claim 1, wherein the explosion-proof layer (10) is provided as a commercially available explosion-proof hose.