Fireproof wind power generation cable

Abstract

The utility model discloses a fireproof wind power generation cable, which comprises a lead, the outer side of the lead is connected with a wrapping tape, the outer side of the wrapping tape is connected with an insulating layer, and the outer side of the insulating layer is connected with an outer sheath. A temperature conducting layer is connected between the outer sheath and the insulating layer, a connecting ring is connected to the temperature conducting layer, a cooling box is connected to one side of the wire, and one end, far away from the wire, of the connecting ring extends to a plurality of heat exchange plates in the cooling box. According to the utility model, the periphery of the conductor is provided with the circle of temperature conduction layer, heat emitted by the cable conductor can be transmitted out through a heat transmission principle, the circulating water cooling device is connected with one end of the temperature conduction layer, and the temperature conduction layer is continuously cooled, so that the cable conductor is indirectly in a relatively stable and low-temperature environment, and the service life of the cable conductor is prolonged. Therefore, the hidden danger of fire caused by overhigh temperature is avoided.

Description

Technical Field

[0001] The utility model relates to the field of fireproof wind power generation cables, in particular to a fireproof wind power generation cable. Background Art

[0002] Wind power generation is a technology that converts wind energy generated by the flow of atmospheric air in nature into electrical energy through a power generation device. The generated electricity needs to be transmitted to the corresponding energy storage device through cables.

[0003] The reason why cables can transmit the flow of electricity is mainly because of the metal wires that serve as conductors. There are many factors that cause cable fires when wind power is transmitting electricity. Among them, the cable itself carries too much load, or it has a short circuit, resulting in excessive temperature, which is also a common situation. If the cable temperature is too high, it will either cause the cable itself to catch fire or create a relatively easy environment for causing a fire. The fire protection mechanism of conventional wind power cables mostly only has a layer of flame retardant material on the outside. After all, flame retardant materials also have a burning point. When the temperature of the cable conductor is too high, it still cannot prevent the cable from catching fire. Therefore, a more effective fireproof wind power cable is needed. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is to reduce the hidden danger of cable fire caused by overload or short circuit of the cable itself.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a fireproof wind power generation cable, comprising a conductor, the outer side of the conductor is connected to a wrapping tape, the outer side of the wrapping tape is connected to an insulating layer, and the outer side of the insulating layer is connected to an outer sheath.

[0008] A thermal conductive layer is connected between the outer sheath and the insulating layer, a connecting ring is connected to the thermal conductive layer, a cooling box is connected to one side of the wire, and the connecting ring extends away from one end of the wire to a plurality of heat exchange plates in the cooling box.

[0009] A cable rack that matches the cooling box is connected to the outside of the wire, and a support frame is connected to the cable rack on the side of the cooling box away from the wire. A heat dissipation elbow that matches the cooling box is connected to the support frame, and an infusion tube is commonly connected between the heat dissipation elbow and the top of the cooling box, and a return pipe is commonly connected between the heat dissipation elbow and the bottom of the cooling box. Fan frames are connected on both sides of the support frame, and a plurality of fans that match the heat dissipation elbow are connected inside the fan frame.

[0010] A main water pipe is connected to one side above the wire, and a water supply pipe matched with the cooling box is commonly connected between the bottom end of the main water pipe and the infusion pipe.

[0011] Furthermore, the fan frame is connected to a plurality of motors matched with the fans to provide power for the rotation of the fans.

[0012] Furthermore, the return pipe is located below the cooling box and is connected to a water pump No. 1, which is used to transport the cooling water in the cooling box to the heat dissipation elbow through the return pipe. The water supply pipe is connected to a water pump No. 2 near one end of the infusion pipe, which is used to transport the water from the main water pipe to the water delivery pipe through the water supply pipe and then into the cooling water circulation. A liquid level sensor that cooperates with the No. 2 water pump is connected downward from the top of the cooling box to monitor the amount of water in the cooling box.

[0013] Furthermore, a sealing sleeve is provided between the connecting ring and the cooling box to provide a sealing and water-proof effect for the connection between one end of the connecting ring and one side of the cooling box.

[0014] Furthermore, both ends of the heat dissipation elbow are respectively connected to the infusion pipe and the return pipe and are provided with reducers for connecting the heat dissipation elbows with different pipe diameters with the infusion pipe and the return pipe.

[0015] 3. Beneficial Effects

[0016] The advantage of the utility model over the prior art is that the cable is provided with a circle of thermal conductive layer on the periphery of the conductor, which can transfer the heat emitted by the cable conductor through the principle of heat transfer, and a circulating water cooling device is connected to one end of the thermal conductive layer, which indirectly keeps the cable conductor in a relatively stable and low-temperature environment by continuously cooling the thermal conductive layer, thereby avoiding the hidden danger of fire caused by its own excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the appearance structure of a fireproof wind power generation cable.

[0018] Figure 2 The utility model is a schematic diagram of the internal structure of a fireproof wind power generation cable.

[0019] Figure 3 The utility model is a structural schematic diagram of a fireproof wind power cable water supply pipe.

[0020] Figure 4 The utility model is a structural schematic diagram of a fireproof wind power cable heat dissipation elbow.

[0021] Figure 5 The utility model is a schematic diagram of the internal structure of a fireproof wind power cable cooling box.

[0022] As shown in the figure: 1. Wire, 2. Wrapping tape, 3. Insulation layer, 4. Thermal conductive layer, 5. Outer sheath, 6. Connecting ring, 7. Heat exchange plate, 8. Cooling box, 9. Infusion pipe, 10. Reflux pipe, 11. No. 1 water pump, 12. Heat dissipation elbow, 13. Reducer, 14. Cable rack, 15. Support frame, 16. Fan rack, 17. Fan, 18. Motor, 19. Water supply pipe, 20. No. 2 water pump, 21. Liquid level sensor, 22. Main water pipe, 23. Sealing sleeve. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] Embodiment 1

[0025] Combined with Figure 1 A fireproof wind power generation cable includes a conductor 1, which is a main component of the cable and a material for transmitting electricity. The conductor 1 is connected to a wrapping tape 2 on the outside for wrapping the metal wires constituting the conductor 1 together to form a cable. The wrapping tape 2 is connected to an insulating layer 3 on the outside for isolating the conductor 1 from the outside and preventing leakage of the cable. The insulating layer 3 is connected to an outer sheath 5 on the outside as a cable shell for protecting the cable.

[0026] Embodiment 2

[0027] Combined with Figure 1 , 2 5. A thermal conductive layer 4 is connected between the outer sheath 5 and the insulating layer 3 to transfer heat between the surface of the cable conductor 1 and the cooling box 8. The thermal conductive layer 4 is made of a material with strong thermal conductivity and flexibility, which does not affect the bending of the cable during installation and use. A connecting ring 6 is connected to the thermal conductive layer 4. The connecting ring 6 is also made of a material with strong thermal conductivity and is used for heat transfer between the thermal conductive layer 4 material and the cooling box 8. A cooling box 8 is connected to one side of the conductor 1 to absorb the heat transferred from the thermal conductive material through the coolant, so that the cable conductor 1 is in a direction of The temperature of the thermal conductive layer 4 wrapped around the outside of the wire 1 is reduced, and a liquid level sensor 21 is connected downwardly from the top of the cooling box 8 to cooperate with the second water pump 20 for monitoring the amount of water in the cooling box 8. The connecting ring 6 extends away from one end of the wire 1 to a plurality of heat exchange plates 7 in the cooling box 8. The heat exchange plates 7 are also made of a material with strong thermal conductivity and are used to fully contact the cooling water in the cooling box 8, thereby accelerating the cooling. A sealing sleeve 23 is commonly connected between the connecting ring 6 and the cooling box 8 to provide a sealing and leak-proof effect for the connection between one end of the connecting ring 6 and one side of the cooling box 8.

[0028] Embodiment 3

[0029] Combined with Figure 1 , 2 4. A cable rack 14 matched with the cooling box 8 is connected to the outside of the conductor 1, which is used to support and fix the cable, and other auxiliary components for cooling and fire prevention are on one side of the cable. The cable rack 14 is located on the side of the cooling box 8 away from the conductor 1 and is connected with a support frame 15, which is used to support and fix the cooling box 8 and its auxiliary cooling device on one side of the cable rack 14. A heat dissipation elbow 12 matched with the cooling box 8 is connected to the support frame 15. The heat dissipation elbow 12 is spirally curved, so that the indirect contact area between the cooling water in the pipe and the outside is increased, thereby enhancing the effect of accelerating cooling and heat dissipation. A liquid infusion pipe 9 is commonly connected between the heat dissipation elbow 12 and the top of the cooling box 8, which is a pipeline for transporting the cooled cooling water from the heat dissipation elbow 12 to the cooling box 8. A reflux pipe 10 is commonly connected between the heat dissipation elbow 12 and the bottom of the cooling box 8, which is a cooling water in the cooling box 8 with a higher temperature after heat exchange. The water is transported back to the heat dissipation elbow 12 for re-cooling. The return pipe 10 is located below the cooling box 8 and is connected to a water pump 11 for transporting the cooling water in the cooling box 8 to the heat dissipation elbow 12 through the return pipe 10. The two ends of the heat dissipation elbow 12 are respectively connected to the infusion pipe 9 and the return pipe 10 and are provided with a reducer 13 for connecting the heat dissipation elbows 12 with different diameters with the infusion pipe 9 and the return pipe 10 respectively. The support frame 15 is connected to fan racks 16 on both sides. A plurality of fans 17 cooperating with the heat dissipation elbow 12 are connected in the fan rack 16, which are used to blow away the air with higher temperature near the heat dissipation elbow 12 and make the air with lower temperature on one side contact the heat dissipation elbow 12, so that the cooling water in the heat dissipation elbow 12 is quickly cooled again. A plurality of motors 18 cooperating with the fans 17 are connected in the fan rack 16 to provide power for the rotation of the fans 17.

[0030] Embodiment 4

[0031] Combined with Figure 1 , 2 3. A main water pipe 22 is connected to one side above the conductor 1 for providing a water source. A water supply pipe 19 matched with a cooling box 8 is connected between the bottom end of the main water pipe 22 and the infusion pipe 9. The water supply pipe 19 is used to replenish the cooling water of the cooling circulation system when the cooling water in the cooling circulation device may be reduced after long-term use. A No. 2 water pump 20 is connected to one end of the water supply pipe 19 close to the infusion pipe 9 for transporting the water from the main water pipe 22 to the water delivery pipe through the water supply pipe 19 and then into the cooling water circulation.

[0032] During the specific implementation of the utility model, the heat emitted by the cable conductor 1 when transporting electricity is more effectively and quickly transferred to one end extending into the cooling box 8 through the thermal conductive layer 4 wrapped on the outside thereof. The cooling box 8 on one side of the cable is filled with cooling water. The heat exchange and balance between the cooling water and the thermal conductive layer 4, and the heat exchange between the thermal conductive layer 4 and the conductor 1 are continued to cool the conductor 1, so that the cable and the conductor 1 are in an environment with a relatively stable and low temperature. The low temperature environment is conducive to preventing the cable conductor 1 from being subjected to a large load, or the temperature is too high when a short circuit occurs accidentally, which makes it very easy to cause a fire, thereby enhancing the fire resistance of the wind power cable. The cooling water in the cooling box 8 is in a relatively stable and low temperature environment. After the thermal conductive layer 4 structure is cooled by heat balance, its own temperature also rises. The used cooling water will pass through the return pipe 10 into the heat dissipation elbow 12 on the side under the action of the No. 1 water pump 11 below. The heat dissipation elbow 12 has a small diameter and a thin wall, and is curved and spiral. The multiple fans 17 arranged on both sides continuously fan the air to make the air flow, so that the cooling water in the heat dissipation elbow 12 is quickly cooled down, and continues to flow back to the cooling box 8 through the infusion pipe 9 to continuously cool the heat conduction layer, so that the cable and the wire 1 can be kept in a safe and fireproof temperature environment for a long time. The cooling circulation device described above can be arranged in appropriate quantity and position according to the on-site installation requirements of the wind power cable to play an effective fire prevention role.

[0033] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A fireproof wind power generation cable, comprising a conductor (1), the conductor (1) being connected to a wrapping tape (2) on its outer side, the wrapping tape (2) being connected to an insulating layer (3) on its outer side, the insulating layer (3) being connected to an outer sheath (5) on its outer side, characterized in that: A thermal conductive layer (4) is connected between the outer sheath (5) and the insulating layer (3), a connecting ring (6) is connected to the thermal conductive layer (4), one side of the wire (1) is connected to a cooling box (8), and the connecting ring (6) extends away from one end of the wire (1) to a plurality of heat exchange plates (7) in the cooling box (8); The outer side of the wire (1) is connected to a cable rack (14) matched with the cooling box (8); the cable rack (14) is located on the side of the cooling box (8) away from the wire (1) and is connected to a support frame (15); the support frame (15) is connected to a heat dissipation elbow (12) matched with the cooling box (8); a liquid infusion tube (9) is commonly connected between the heat dissipation elbow (12) and the top of the cooling box (8); a return pipe (10) is commonly connected between the heat dissipation elbow (12) and the bottom of the cooling box (8); fan frames (16) are connected to both sides of the support frame (15); a plurality of fans (17) matched with the heat dissipation elbow (12) are connected inside the fan frame (16); A main water pipe (22) is connected to one side above the conductor (1), and a water supply pipe (19) matching with the cooling box (8) is connected between the bottom end of the main water pipe (22) and the liquid infusion pipe (9).

2. A fireproof wind power cable according to claim 1, characterized in that: The fan frame (16) is internally connected with a plurality of motors (18) matched with the fans (17).

3. A fireproof wind power cable according to claim 1, characterized in that: The return pipe (10) is located below the cooling box (8) and is connected to a first water pump (11); the water supply pipe (19) is connected to a second water pump (20) near one end of the infusion pipe (9); and a liquid level sensor (21) that cooperates with the second water pump (20) is connected downwardly at the top of the cooling box (8).

4. A fireproof wind power cable according to claim 1, characterized in that: A sealing sleeve (23) is provided between the connecting ring (6) and the cooling box (8).

5. The fireproof wind power cable according to claim 1, characterized in that: Both ends of the heat dissipation curved pipe (12) are respectively connected to the infusion pipe (9) and the return pipe (10) and are provided with a reducing pipe (13).

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