Novel dynamic and steady-state double explosion-proof flexible cable
By designing a novel dynamic steady-state dual explosion-proof flexible cable and using specific materials and structures, the problem of poor performance of existing explosion-proof cables in hazardous environments has been solved. This has improved the cable's abrasion resistance, bending performance, and tensile strength, and enhanced its mechanical and explosion-proof properties.
Patent Information
- Application Number
- CN202423113740.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing explosion-proof cables have poor performance and limited functionality in hazardous environments such as petroleum, chemical, and coal mines. They need to be optimized and improved to enhance their abrasion resistance, bending performance, tensile strength, and climate adaptability.
A novel dynamic steady-state explosion-proof flexible cable is designed, featuring a structure with three main conductors, wrapping tape, a second reinforcing layer, an inner sheath, a composite braided reinforcing layer, and an outer sheath. It uses Category 6 tinned copper conductors, ethylene propylene rubber insulation, fiber braided reinforcing layer, and chlorosulfonated polyethylene sheath material to enhance the cable's mechanical and explosion-proof properties.
It improves the cable's abrasion resistance, bending performance, and tensile strength, enhances the cable's mechanical properties and explosion-proof performance in harsh environments, has good shielding performance and chemical stability, and can exhibit high resistance in the event of explosions and fires.
Smart Images
Figure CN223539346U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable technology, and in particular to a novel dynamic steady-state double explosion-proof flexible cable. Background Technology
[0002] In hazardous environments such as petroleum, chemical, and coal mines, the safety of electrical equipment and systems is paramount, as these environments often contain flammable and explosive gases or dust. Against this backdrop, explosion-proof cables have emerged as a special type of cable designed to prevent explosions caused by short circuits or electrical sparks.
[0003] The development history of explosion-proof cables can be traced back to the early 20th century, when the petroleum and chemical industries began to flourish, and the demand for explosion-proof cables gradually emerged. Initially, lead-insulated cables were used for explosion protection. Although these cables had a certain level of protection, problems such as the easy oxidation of lead and unstable electrical performance gradually became apparent.
[0004] With advancements in technology, the manufacturing technology of explosion-proof cables has been continuously improved. In the 1940s, silicone and polyvinyl chloride were adopted as the insulating and shielding layers for cables, which greatly improved their explosion-proof performance. By the 1980s, the application of technologies such as steel tape armor and corrugated insulation further enhanced the reliability and safety of explosion-proof cables.
[0005] Modern explosion-proof cables employ special materials and structural designs, possessing a variety of superior performance characteristics. Their conductors typically use copper or aluminum cores, while the insulation layer utilizes special materials that are high-temperature resistant, corrosion-resistant, and low-smoke halogen-free. Furthermore, explosion-proof cables also possess flame-retardant properties, reducing the rate of fire spread in the event of a fire. These performance characteristics enable explosion-proof cables to operate stably in hazardous environments, ensuring workplace safety and reliability. However, existing explosion-proof cables have poor performance and limited functionality, requiring optimization and improvement. Therefore, we propose a novel dynamic steady-state dual explosion-proof flexible cable. Utility Model Content
[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a novel dynamic steady-state double explosion-proof flexible cable, which features wear resistance, good bending performance, strong tensile strength, strong climate adaptability, and good explosion-proof performance.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A novel dynamic steady-state explosion-proof flexible cable is designed, comprising three main conductors. The three main conductors are wrapped together with a wrapping tape. A second reinforcing layer is provided outside the wrapping tape. An inner sheath is provided outside the second reinforcing layer. A composite braided reinforcing layer is wrapped outside the inner sheath. An outer sheath is provided outside the composite braided reinforcing layer. Each main conductor comprises a circular tin-plated flexible conductor, an insulation layer, and a first reinforcing layer. The circular tin-plated flexible conductor is wrapped with an insulation layer, and the first reinforcing layer is provided outside the insulation layer.
[0009] Preferably, the circular tin-plated soft conductor is a type VI tin-plated copper conductor.
[0010] Preferably, the insulating layer is made of ethylene propylene rubber.
[0011] Preferably, both the first reinforcing layer and the second reinforcing layer are woven from fiber filaments.
[0012] Preferably, the wrapping tape is made of non-woven fabric.
[0013] Preferably, the inner protective layer is made of rubber sheath material.
[0014] Preferably, the composite braided reinforcing layer is made of a mixture of copper wire and fiber filaments.
[0015] Preferably, the outer sheath is made of chlorosulfonated polyethylene sheath material.
[0016] This utility model proposes a novel dynamic steady-state double explosion-proof flexible cable, which has the following advantages: It features a first reinforcing layer and a second reinforcing layer. These two layers ensure the stability of the entire product structure, prevent core slippage, and reduce stress concentration during bending, thus improving the product's bending performance. Simultaneously, they enhance the cable's resistance in explosion-proof environments. The composite braided reinforcing layer is made of a mixture of copper wire and fiber filaments, providing shielding and anti-interference properties as well as strengthening the cable's explosion-proof capabilities. The inner sheath uses rubber material, offering good elasticity and flexibility, enhancing the overall mechanical properties of the cable. The outer sheath uses chlorosulfonated polyethylene material, exhibiting high chemical stability and excellent resistance to ozone, chemical corrosion, and oil erosion; it also possesses high flame retardancy and resistance to explosions and fires; furthermore, it boasts excellent mechanical properties and good tensile elasticity.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of a novel dynamic steady-state double explosion-proof flexible cable structure proposed in this utility model.
[0020] In the diagram: 1. Circular tin-plated soft conductor; 2. Insulation layer; 3. First reinforcing layer; 4. Wrapping tape; 5. Second reinforcing layer; 6. Inner sheath; 7. Composite braided reinforcing layer; 8. Outer sheath. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0022] Reference Figure 1 A novel dynamic steady-state double explosion-proof flexible cable has a circular cross-section for the main conductor, comprising three main conductor cores. The three main conductor cores are collectively wrapped with a wrapping tape 4. A second reinforcing layer 5 is provided outside the wrapping tape 4. An inner sheath 6 is provided outside the second reinforcing layer 5. A composite braided reinforcing layer 7 is wrapped outside the inner sheath 6. An outer sheath 8 is provided outside the composite braided reinforcing layer 7. The main conductor core includes a circular tin-plated flexible conductor 1, an insulation layer 2, and a first reinforcing layer 3. The circular tin-plated flexible conductor 1 is wrapped with the insulation layer 2, and the insulation layer 2 is provided with the first reinforcing layer 3 outside the insulation layer 3.
[0023] The round tin-plated flexible conductor 1 uses a Category 6 tin-plated copper conductor, which is regularly stranded, allowing for a smaller wire diameter and making the cable structure more compact.
[0024] Insulation layer 2 is made of ethylene propylene rubber, which has excellent aging resistance and chemical resistance, as well as excellent wear resistance. Ethylene propylene rubber has good impact elasticity, low temperature performance and heat resistance, which makes it able to provide reliable performance guarantee in occasions that need to withstand mechanical stress and work in harsh temperature environments.
[0025] The first reinforcing layer 3 and the second reinforcing layer 5 are both made of woven fiber filaments. Their main function is to protect the insulation layer 2, effectively shield it from corrosion by harsh external environmental factors, and at the same time improve the cable's wear resistance and basic fire and water resistance.
[0026] The wrapping tape 4 is made of non-woven fabric.
[0027] The inner sheath 6 is made of rubber, which has good elasticity and flexibility, enhancing the overall mechanical properties of the cable. The rubber used is also an environmentally friendly material.
[0028] The composite braided reinforcement layer 7 is made of a mixture of copper wire and fiber filaments, which has the characteristics of shielding performance and enhanced cable explosion-proof capability.
[0029] The outer sheath 8 is made of chlorosulfonated polyethylene material, which has high chemical stability and high resistance to ozone, chemical corrosion and oil erosion; it also has high flame retardancy and high resistance to explosion and fire; at the same time, it has excellent mechanical properties and good tensile elasticity.
[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A novel dynamic steady-state dual explosion-proof flexible cable, comprising a main conductor, characterized in that, The number of main wire cores is three. The outer sides of the three main wire cores are wrapped with a wrapping tape (4). The outer side of the wrapping tape (4) is provided with a second reinforcing layer (5). The outer side of the second reinforcing layer (5) is provided with an inner sheath (6). The outer side of the inner sheath (6) is wrapped with a composite braided reinforcing layer (7). The outer side of the composite braided reinforcing layer (7) is provided with an outer sheath (8). The main wire core includes a circular tin-plated soft conductor (1), an insulating layer (2), and a first reinforcing layer (3). The outer side of the circular tin-plated soft conductor (1) is wrapped with an insulating layer (2). The outer side of the insulating layer (2) is provided with a first reinforcing layer (3).
2. The novel dynamic steady-state double explosion-proof flexible cable according to claim 1, characterized in that, The circular tin-plated soft conductor (1) is selected from Class VI tin-plated copper conductors.
3. The novel dynamic steady-state double explosion-proof flexible cable according to claim 1, characterized in that, The insulation layer (2) is made of ethylene propylene rubber.
4. The novel dynamic steady-state dual explosion-proof flexible cable according to claim 1, characterized in that, Both the first reinforcing layer (3) and the second reinforcing layer (5) are made of woven fiber filaments.
5. A novel dynamic steady-state dual explosion-proof flexible cable according to claim 1, characterized in that, The wrapping tape (4) is made of non-woven fabric.
6. A novel dynamic steady-state dual explosion-proof flexible cable according to claim 1, characterized in that, The inner protective layer (6) is made of rubber sheath material.
7. A novel dynamic steady-state double explosion-proof flexible cable according to claim 1, characterized in that, The composite braided reinforcing layer (7) is made of a mixture of copper wire and fiber filaments.
8. A novel dynamic steady-state double explosion-proof flexible cable according to claim 1, characterized in that, The outer sheath (8) is made of chlorosulfonated polyethylene sheath material.