Fire-fighting communication optical cable capable of extinguishing fire and production method thereof

Abstract

The present invention discloses a fire-fighting communication optical cable that can extinguish fire and a production method. A plurality of slots arranged at intervals are provided on the skeleton, and the optical fibers are passed through the slots. Each slot is filled with a dry powder fire extinguishing agent, and a POE film is wrapped around the outside of the skeleton and placed in a POE sheath. The present invention uses a dry powder fire extinguishing agent in a communication optical cable structure to enable the communication optical cable to have a certain fire extinguishing ability. A 70°C hot-melt grade POE film is used to wrap the skeleton slots, seal and fix the slots, and when the temperature reaches 70°C, the film will automatically melt. A thin 70°C hot-melt grade POE sheath is used. When a fire point is generated around the optical cable and the temperature rises to 70°C, the thin hot-melt grade POE sheath will melt. At the same time, the hot-melt grade POE film melts, and the dry powder fire extinguishing agent naturally falls and comes into contact with the flame, achieving the purpose of fire extinguishing through chemical inhibition, isolation, cooling and suffocation.

Description

Technical Field

[0001] The invention relates to a fire-fighting communication optical cable capable of extinguishing fire and a production method thereof. Background Art

[0002] Currently, there are few optical cables specifically designed for firefighting communications on the market, and manufacturers have conducted limited research on this topic. However, such optical cables are widely applicable to locations with high fire risk and high importance, such as gas stations, urban traffic tunnels, subways, petrochemical production facilities, aircraft hangars, power plants, substations, information technology rooms, and historic buildings. These locations are typically inherently valuable, and fire damage can be significant. Firefighting communications cables with fire extinguishing properties can provide a certain initial firefighting effect in the event of a fire, extinguishing small fires and slowing the spread of larger fires, thus buying valuable time for subsequent firefighting and rescue efforts. Therefore, firefighting communications cables with fire extinguishing properties are expected to experience rapid growth in the coming period, and their market prospects are promising. To this end, the present invention provides a firefighting communications cable with fire extinguishing properties and a production method. Summary of the Invention

[0003] The present invention aims to solve the problems existing in the above-mentioned prior art and provides a fire-fighting communication optical cable capable of extinguishing fire and a production method thereof.

[0004] The technical solutions adopted in the present invention are:

[0005] A fire-fighting communication optical cable capable of extinguishing fires comprises an optical fiber, a skeleton, a POE film and a POE sheath. The skeleton is provided with a plurality of slots arranged at intervals, the optical fiber is passed through the slots, each slot is filled with a dry powder fire extinguishing agent, and the POE film is wrapped around the outside of the skeleton and placed in the POE sheath.

[0006] Furthermore, the POE film is a 70°C hot melt grade POE film; and the POE sheath is a 70°C hot melt grade POE sheath.

[0007] Furthermore, the frame is rectangular, and a plurality of slots are arranged at equal intervals within the frame.

[0008] Furthermore, each trough is provided with a partition rib, which divides the trough into two parts, and the optical fiber and the dry powder fire extinguishing agent are placed on both sides of the partition rib.

[0009] Furthermore, the slot body is an open slot, the slot openings of adjacent slot bodies are arranged alternately up and down, the optical fibers in adjacent slot bodies are arranged alternately up and down, and the POE film is wrapped around the skeleton and closes the slot openings of the slot body.

[0010] Furthermore, a steel wire is passed through the frame.

[0011] The present invention also discloses a method for producing an optical cable, comprising the following steps:

[0012] 1) Extrusion produces a rectangular frame, on which a number of slots are arranged at intervals. The slots are open, and the slots of adjacent slots are staggered up and down. Each slot is provided with a partition rib, which divides the slot into two parts.

[0013] 2) The optical fibers are twisted and inserted into the slots, and the optical fibers in adjacent slots are arranged in an alternating pattern.

[0014] 3) Fill each slot with dry powder fire extinguishing agent, and separate the dry powder fire extinguishing agent and the optical fiber in each slot with a rib;

[0015] 4) Wrap the POE film on the outside of the frame, and the POE film seals the notch of the tank body;

[0016] 5) The wrapped and fixed frame is extruded with POE sheath to form the finished product.

[0017] The present invention has the following beneficial effects:

[0018] (1) The present invention uses dry powder fire extinguishing agent in the communication optical cable structure, so that the communication optical cable has a certain fire extinguishing ability.

[0019] (2) There are multiple slots in the optical cable, and they are arranged in parallel in multiple rows, so that the optical fiber and the dry powder fire extinguishing agent are completely separated, ensuring that the dry powder fire extinguishing agent has no effect on the performance of the optical fiber and ensuring the performance of optical fiber communication in a normal use environment.

[0020] (3) Use 70℃ hot melt grade POE film to wrap the skeleton slot to seal and fix the slot body. At the same time, when the temperature reaches 70℃, the film will automatically melt.

[0021] (4) Use a thin 70℃ hot-melt grade POE sheath. When a fire point occurs around the optical cable and the temperature rises to 70℃, the thin hot-melt grade POE sheath will melt. At the same time, the hot-melt grade POE film will melt, and the dry powder fire extinguishing agent will naturally fall and come into contact with the flame, achieving the purpose of fire extinguishing through chemical inhibition, isolation, cooling and suffocation.

[0022] (5) The flat structural design allows the optical cable to be laid on walls, roofs, and steel structures, which is convenient for construction, saves wiring space, and is firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of the present invention.

[0024] In the picture:

[0025] 1. Optical fiber; 2. Skeleton; 3. Steel wire; 4. Trough; 5. Dry powder fire extinguishing agent; 6. POE film; 7. POE sheath. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] like Figure 1 The present invention provides a fire-fighting communication optical cable that can extinguish fires, including an optical fiber 1, a skeleton 2, a POE film 6 and a POE sheath 7. The skeleton 2 is provided with a plurality of slots 4 arranged at intervals. The optical fiber 1 is passed through the slots 4. Each slot 4 is filled with a dry powder fire extinguishing agent. The POE film 6 is wrapped around the outside of the skeleton 2 and placed in the POE sheath 7.

[0028] The POE film 6 in the present invention is a 70°C hot-melt grade POE film, and the POE sheath 7 is a 70°C hot-melt grade POE sheath.

[0029] The skeleton 2 is rectangular, and several slots 4 are arranged at equal intervals in the skeleton 2. The slots 4 are open slots, and the slots of adjacent slots 4 are staggered up and down. The optical fibers 1 in adjacent slots 4 are staggered up and down. The POE film 6 is wrapped on the skeleton 2 and closes the slots of the slots.

[0030] The slots of adjacent slot bodies 4 are arranged in an alternating manner. No matter how the optical cables are placed, when exposed to fire, the dry powder fire extinguishing agent can quickly fall and contact the flames.

[0031] A partition 8 is provided in each trough 4, which divides the trough into two parts. The optical fiber 1 and the dry powder fire extinguishing agent are placed on both sides of the partition 8. The optical fiber and the dry powder fire extinguishing agent are completely separated, ensuring that the dry powder fire extinguishing agent has no effect on the performance of the optical fiber and ensuring the optical fiber communication performance in a normal use environment.

[0032] Steel wires 3 are passed through the skeleton 2 to ensure the strength of the optical cable.

[0033] The production method of the optical cable of the present invention is:

[0034] 1) Insert thin steel wire 3 to extrude and produce a rectangular frame 2, and set a number of slots 4 arranged at intervals on the frame 2. The slots 4 are open slots, and the slots of adjacent slots 4 are staggered up and down. A partition rib 8 is provided in each slot 4, and the partition rib 8 divides the slot into two.

[0035] 2) The optical fibers 1 are twisted and inserted into the slots 4 , and the optical fibers 1 in adjacent slots 4 are arranged in an alternating pattern.

[0036] 3) Dry powder fire extinguishing agent is filled in each slot 4 , and the dry powder fire extinguishing agent in each slot 4 is separated from the optical fiber 1 by a partition rib 8 .

[0037] 4) Wrap the outer side of the frame 2 with a POE film 6 to seal the notch of the tank body.

[0038] 5) The wrapped and fixed frame is extruded with a POE sheath 7 to form a finished product.

[0039] The optical cable has a flat structure and can be attached to walls, roofs, and steel structures for wiring. It uses a horizontal multi-column skeleton structure to form multi-column skeleton grooves. Each groove is divided into two parts, the upper part is the optical fiber, and the lower part is the dry powder fire extinguishing agent. The surface of the groove is wrapped with a 70℃ hot-melt grade POE film for sealing and fixing to prevent the dry powder fire extinguishing agent from leaking. At the same time, when the temperature reaches 70℃, this film will automatically melt. The outer sheath uses a thin 70℃ hot-melt grade POE sheath. When a fire point occurs around the optical cable and the temperature rises to 70℃, the thin hot-melt grade POE sheath will melt. At the same time, the hot-melt grade POE film melts, and the dry powder fire extinguishing agent falls naturally and comes into contact with the flame, achieving the purpose of fire extinguishing through chemical inhibition, isolation, cooling and suffocation.

[0040] This type of optical cable can be widely used in places with high fire risk and high importance, such as gas stations, urban traffic tunnels, subways, petrochemical production enterprises, hangars, power plants, substations, information rooms, ancient buildings, etc. Such places are usually of high value in themselves. Once a fire occurs, the loss is huge. The application of fire-fighting communication optical cables that can extinguish fires can play a certain role in the initial fire extinguishing when a fire occurs. It can extinguish small fire sources and delay the spread of large fire sources, thus buying precious time for subsequent fire rescue.

[0041] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principles of the present invention. These improvements should also be regarded as the scope of protection of the present invention.

Claims

1. A fire-fighting communication optical cable capable of extinguishing fire, characterized in that: The invention comprises an optical fiber (1), a skeleton (2), a POE film (6) and a POE sheath (7). The skeleton (2) is provided with a plurality of slots (4) arranged at intervals. The optical fiber (1) is passed through the slots (4). The slots (4) are open slots. The slots of adjacent slots (4) are arranged in an up-down staggered manner. The optical fibers (1) in adjacent slots (4) are arranged in an up-down staggered manner. Each slot (4) is provided with a partition rib (8). The partition rib (8) divides the slot into two. The optical fiber (1) and the dry powder fire extinguishing agent are placed in the slots on both sides of the partition rib (8). When exposed to fire, the dry powder fire extinguishing agent can quickly fall and contact the flame. The POE film (6) is a 70°C hot-melt grade POE film wrapped on the skeleton (2) and closes the slot of the slot and is placed in the POE sheath (7). The POE sheath (7) is a 70°C hot-melt grade POE sheath.

2. The fire-fighting communication optical cable capable of extinguishing fire according to claim 1, characterized in that: The frame (2) is rectangular, and a plurality of slots (4) are arranged at equal intervals within the frame (2).

3. The fire-fighting communication optical cable capable of extinguishing fire according to claim 1, characterized in that: A steel wire (3) is passed through the skeleton (2).

4. A method for producing an optical cable according to any one of claims 1 to 3, characterized in that: include: 1) Extrusion produces a rectangular frame (2), and a plurality of slots (4) are arranged at intervals on the frame (2). The slots (4) are open slots, and the slots of adjacent slots (4) are arranged in an upper and lower staggered manner. A partition rib (8) is provided in each slot (4), and the partition rib (8) divides the slot into two parts; 2) The optical fibers (1) are twisted and then inserted into the slots (4), and the optical fibers (1) in adjacent slots (4) are arranged in an upper and lower staggered manner; 3) filling dry powder fire extinguishing agent in each slot (4), and separating the dry powder fire extinguishing agent in each slot (4) from the optical fiber (1) by a partition (8); 4) Wrapping the outer side of the frame (2) with a POE film (6), the POE film (6) sealing the notch of the tank body; 5) The wrapped and fixed frame is subjected to extrusion of the POE sheath (7) to form a finished product.

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