Power cable capable of realizing multi-maintenance monitoring

Abstract

The invention discloses a power cable capable of realizing multi-maintenance monitoring, which comprises a plurality of cable bodies, a plurality of protection tubes and a plurality of functional tubes, and is characterized in that all the cable bodies penetrate through each protection tube, and all the cable bodies penetrate through each functional tube. According to the power cable, the plurality of protection tubes and function tubes are alternately distributed, so that the mechanical strength of the cable is enhanced, and multiple protection is provided for the cable. The functional tube has a plurality of functions of heat dissipation, temperature measurement, humidity inspection and the like, so that active heat dissipation of the plurality of cable bodies can be realized, the heating condition of the plurality of cable bodies in use can be monitored, and the moisture condition in the functional tube and the protection tube can be judged. The function pipe and the protection pipe can be fixedly connected through the insertion block and can be sealed through the sealing unit, and therefore the connection strength between the function pipe and the protection pipe is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and more specifically, to a power cable capable of realizing multi-maintenance monitoring. Background Art

[0002] Power cables can transmit high-voltage, medium-voltage or low-voltage electrical energy to various types of equipment, such as buildings, factories, communication systems, and power transmission systems. Power cables are widely used in urban underground power grids, outgoing lines of power stations, internal power supply in industrial and mining enterprises, and underwater transmission lines across rivers and seas.

[0003] For existing power cables, their mechanical strength and protection ability are relatively limited. Especially in complex environments or harsh climatic conditions, the cables are easily damaged by various external forces, thus affecting the normal operation of the power system. And traditional power cables have obvious deficiencies in heat dissipation. Due to the lack of an effective active heat dissipation mechanism, the cables are prone to overheating problems during use. It is difficult to detect and handle abnormal cable temperatures in a timely manner, which not only affects the lifespan of the cables but may also cause safety accidents such as fires. In addition, power cables are prone to moisture absorption when used in high-humidity environments, especially in humid environments such as underground pipelines. Due to the lack of a humidity detection function in the cables, these problems are often difficult to detect and handle in a timely manner, posing great potential hazards to the safe operation of the power system. Summary of the Invention

[0004] The present invention aims to overcome the defects of the prior art and provides a power cable capable of realizing multi-maintenance monitoring.

[0005] To achieve the above object, the present invention provides the following technical solution: A power cable includes a plurality of cable bodies, a plurality of protection tubes, and a plurality of functional tubes. Each protection tube is penetrated by all the cable bodies, and each functional tube is penetrated by all the cable bodies. The plurality of protection tubes and the plurality of functional tubes are distributed along the length direction of the cable body, and the protection tubes and the functional tubes are alternately distributed.

[0006] Further, both inner sides of the two ends of the protection tube have a plurality of annular protrusions; the functional tube includes a central tube and three partition units fixedly connected to the central tube. The partition unit includes a radial block fixedly connected to the central tube, an arc-shaped surrounding plate fixedly connected to the radial block, and two insertion blocks respectively fixed at both ends of the radial block. The outer side of the insertion block has a plurality of arc-shaped protrusions. The insertion block is inserted into the end of the adjacent protection tube. One side of the surrounding plate has a strip-shaped protrusion, and the other side of the surrounding plate has a strip-shaped groove matching with the strip-shaped protrusion; there are three cable bodies, and there is one cable body between two adjacent radial blocks.

[0007] Further, the arc-shaped protrusion at the insertion block and the circular protrusion at the protective tube can make the connection between the functional tube and the protective tube tighter.

[0008] Thus, the strip-shaped protrusions and strip-shaped grooves of the enclosing plates can make the connection between adjacent enclosing plates tighter.

[0009] Further, the cable body sequentially includes an outer sheath, an armor layer, and a flame-retardant layer from outside to inside. There are a plurality of cable cores in the flame-retardant layer, and each cable core includes an insulating layer and a conductor.

[0010] Further, a heat conduction unit is also included. The heat conduction unit includes a cylindrical block and three arc-shaped heat conduction plates. A heat conduction block is connected between each heat conduction plate and the cylindrical block, and each heat conduction plate has one of the heat conduction plates; the central tube has three through slots, and there is one through slot between two adjacent radial blocks. Each heat conduction block passes through one of the through slots, and the cylindrical block is located inside the central tube; the three partition units are a heat dissipation partition unit, a temperature measurement partition unit, and a detection partition unit respectively. The heat dissipation partition unit has two ventilation holes, and the two ventilation holes are located on both sides of the cylindrical block. The ventilation holes extend from the inner circumferential surface of the central tube to the outer surface of the enclosing plate; there is a temperature measurement groove at the cylindrical block, and there is a temperature measurement channel at the temperature measurement partition unit. The temperature measurement channel communicates with the temperature measurement groove, and the temperature measurement channel extends from the inner circumferential surface of the central tube to the outer surface of the enclosing plate; there is a receiving groove at the radial block of the detection partition unit, and there is a filter unit for closing the receiving groove at the receiving groove, and the receiving groove is filled with desiccant particles.

[0011] Further, a first blocking block is provided at the ventilation hole; a second blocking block is provided at the temperature measurement channel.

[0012] Thus, when heat dissipation is required, the first blocking block can be taken out to install and connect a ventilation pipe; when temperature measurement is required, the second blocking block can be taken out to install a temperature sensor.

[0013] Further, the cylindrical block, the heat conduction block, and the heat conduction plate are all made of heat-conducting metal materials.

[0014] Further, the cylindrical block, the heat conduction block, and the heat conduction plate are all made of copper-aluminum alloy.

[0015] Further, the functional tube is made of PVC material.

[0016] Further, it further includes a sealing unit, and the sealing unit includes two sealing rings, a strip-shaped sealing belt connecting the two sealing rings, and three connecting sealing belts connecting the two sealing rings. There is a strip-shaped gap at the strip-shaped sealing belt, thereby dividing the strip-shaped sealing belt into a first strip-shaped sealing belt and a second strip-shaped sealing belt. The second strip-shaped sealing belt is connected with a strip-shaped protruding sealing belt, and the protruding sealing belt and the first strip-shaped sealing belt are bonded by an adhesive; the sealing ring is used for sealing the connection position of the functional pipe and the protective pipe, and the connecting sealing belt is used for sealing the connection position of two adjacent surrounding plates.

[0017] When inspection is needed, the sealing unit can be removed. After the inspection is completed, a new sealing unit can be installed, thereby realizing the sealing between the functional pipe and the protective pipe and better sealing of the functional pipe itself.

[0018] Further, the sealing unit is made of rubber material.

[0019] Further, the length of the insertion block is greater than or equal to one-half of the length of the functional pipe.

[0020] Beneficial effects: 1. For the power cable of the present application, multiple protective pipes and functional pipes are alternately distributed, thereby enhancing the mechanical strength of the cable and providing multiple protections for the cable.

[0021] 2. For the power cable of the present application, the functional pipe has multiple functions such as heat dissipation, temperature measurement, and humidity inspection, thereby enabling active heat dissipation for multiple cable bodies, monitoring the heating conditions of multiple cable bodies during use, and also judging the moisture conditions in the functional pipe and the protective pipe.

[0022] 3. For the power cable of the present application, the functional pipe and the protective pipe can be fixedly connected through the insertion block, and the functional pipe and the protective pipe can be sealed through the sealing unit, thereby enhancing the connection strength between the two. Description of the drawings

[0023] Figure 1 It is a schematic diagram of the cable; Figure 2 It is an enlarged view of area A; Figure 3 It is an enlarged view of area B; Figure 4 It is an enlarged view of area C; Figure 5 It is a schematic diagram of the first perspective of the separation of the cable components; Figure 6 It is an enlarged view of area D; Figure 7 It is an enlarged view of area E; Figure 8 It is an enlarged view of area F; Figure 9 Second perspective schematic diagram of the separation of cable components.

[0024] Figure 10 Enlarged view of area G.

[0025] Explanation of reference numerals: Cable body 1; Outer sheath 1.1; Armor layer 1.2; Flame-retardant layer 1.3; Insulation layer 1.4; Conductor 1.5; Protection tube 2; Circular protrusion 2.1; Functional tube 3; Central tube 3.1; Through groove 3.1.1; Radial block 3.2; Enclosing plate 3.3; Insertion block 3.4; Arc-shaped protrusion 3.5; Strip-shaped protrusion 3.6; Cylindrical block 4.1; Temperature measurement groove 4.1.1; Heat conduction plate 4.2; Heat conduction block 4.3; Ventilation hole 5; Temperature measurement channel 6; Filter unit 7; Sealing ring 8.1; Connecting sealing tape 8.2; First strip-shaped sealing tape 8.3; Second strip-shaped sealing tape 8.4; Protruding sealing tape 8.5. Detailed implementation manners

[0026] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0027] The present invention provides a power cable capable of realizing multi-maintenance monitoring as shown in the figure, including a plurality of cable bodies 1, a plurality of protection tubes 2 and a plurality of functional tubes 3. Each protection tube 2 is passed through by all the cable bodies 1, and each functional tube 3 is passed through by all the cable bodies 1. The plurality of protection tubes 2 and the plurality of functional tubes 3 are distributed along the length direction of the cable body 1, and the protection tubes 2 and the functional tubes 3 are alternately distributed.

[0028] On the inner sides of both ends of the protection tube 2, there are multiple annular protrusions 2.1; the functional tube 3 includes a central tube 3.1 and three partition units fixedly connected to the central tube 3.1. The partition unit includes a radial block 3.2 fixedly connected to the central tube 3.1, an arc-shaped surrounding plate 3.3 fixedly connected to the radial block 3.2, and two insertion blocks 3.4 respectively fixed at both ends of the radial block 3.2. On the outer side of the insertion block 3.4, there are multiple arc-shaped protrusions 3.5. The insertion block 3.4 is inserted into the end of the adjacent protection tube 2. On one side of the surrounding plate 3.3, there is a strip-shaped protrusion 3.6, and on the other side of the surrounding plate 3.3, there is a strip-shaped groove that cooperates with the strip-shaped protrusion 3.6; there are three cable bodies 1, and there is one cable body 1 between two adjacent radial blocks 3.2. The cable body 1 sequentially includes an outer sheath 1.1, an armor layer 1.2, and a flame-retardant layer 1.3 from the outside to the inside. There are multiple cable cores in the flame-retardant layer 1.3, and the cable core includes an insulating layer 1.4 and a conductor 1.5. The power cable further includes a heat-conducting unit, the heat-conducting unit includes a cylindrical block 4.1 and three arc-shaped heat-conducting plates 4.2. A heat-conducting block 4.3 is connected between each heat-conducting plate 4.2 and the cylindrical block 4.1. Each heat-conducting plate 4.2 has one heat-conducting plate 4.2; the central tube 3.1 has three through slots 3.1.1, and there is one through slot 3.1.1 between two adjacent radial blocks 3.2. Each heat-conducting block 4.3 passes through one through slot 3.1.1, and the cylindrical block 4.1 is located inside the central tube 3.1; the three partition units are respectively a heat-dissipating partition unit, a temperature-measuring partition unit, and a detection partition unit. The heat-dissipating partition unit has two ventilation holes 5, and the two ventilation holes 5 are located on both sides of the cylindrical block 4.1. The ventilation holes 5 extend from the inner circumferential surface of the central tube 3.1 to the outer surface of the surrounding plate 3.3; there is a temperature-measuring groove 4.1.1 at the cylindrical block 4.1, and there is a temperature-measuring channel 6 at the temperature-measuring partition unit. The temperature-measuring channel 6 communicates with the temperature-measuring groove 4.1.1, and the temperature-measuring channel 6 extends from the inner circumferential surface of the central tube 3.1 to the outer surface of the surrounding plate 3.3; there is a receiving groove at the radial block 3.2 of the detection partition unit, and there is a filter unit 7 for closing the receiving groove at the receiving groove. The receiving groove is filled with desiccant particles.It further includes a sealing unit, which includes two sealing rings 8.1, a strip-shaped sealing belt connecting the two sealing rings 8.1, and three connecting sealing belts 8.2 connecting the two sealing rings 8.1. There is a strip-shaped gap in the strip-shaped sealing belt, which divides the strip-shaped sealing belt into a first strip-shaped sealing belt 8.3 and a second strip-shaped sealing belt 8.4. The second strip-shaped sealing belt 8.4 is connected with a strip-shaped protruding sealing belt 8.5, and the protruding sealing belt 8.5 is bonded to the first strip-shaped sealing belt 8.3 by an adhesive; the sealing ring 8.1 is used for sealing the connection position of the functional pipe 3 and the protective pipe 2, and the connecting sealing belt 8.2 is used for sealing the connection position of two adjacent surrounding plates 3.3. The length of the insertion block 3.4 is greater than or equal to half of the length of the functional pipe 3.

[0029] Working principle: The power cable of the present application has multiple functional pipes. The functional pipes and the protective pipes can be fixedly connected through insertion blocks, and the functional pipes and the protective pipes can be sealed through a sealing unit. The functional pipes have multiple functions. If necessary, the two ventilation holes of the heat dissipation and separation unit can be respectively used to connect a first air duct for blowing and a second air duct for exhausting air (the cylindrical block separates the two ventilation holes), so that a complete heat dissipation channel is formed between the two functional pipes and the protective pipes between the two functional pipes, and thus active heat dissipation of multiple cable bodies can be achieved.

[0030] And a temperature sensor can be installed at the temperature measurement channel, so that the temperature of the temperature measurement groove at the cylindrical block can be detected, and thus the heat generation situation of multiple cable bodies during use can be monitored.

[0031] And after removing the sealing unit, by hand, the surrounding plates can be pried open, so that the situation of the internal cable bodies can be seen, and thus the internal cable bodies can be better inspected regularly, the situation of the cable bodies can be observed, and sampling the desiccant particles can also judge the moisture situation in the functional pipes and the protective pipes, so as to avoid the cable bodies being used in a humid environment for a long time. Therefore, the functional pipes have multiple functions such as heat dissipation, temperature measurement, and humidity inspection.

[0032] Although the present invention has been illustrated and described with respect to preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention as long as they do not exceed the scope defined by the claims of the present invention.

Claims

1. A power cable capable of realizing multi-faceted monitoring and control, characterized in that, It includes multiple cable bodies, multiple protection tubes and multiple functional tubes. Each protection tube is penetrated by all the cable bodies, and each functional tube is penetrated by all the cable bodies. The multiple protection tubes and multiple functional tubes are distributed along the length direction of the cable body, and the protection tubes and functional tubes are alternately distributed.

2. The power cable capable of realizing multi-dimensional monitoring according to claim 1, characterized in that Both inner sides of the two ends of the protection tube have multiple annular protrusions; the functional tube includes a central tube and three partition units fixedly connected to the central tube. The partition unit includes a radial block fixedly connected to the central tube, an arc-shaped surrounding plate fixedly connected to the radial block, and two insertion blocks respectively fixed at both ends of the radial block. The outer side of the insertion block has multiple arc-shaped protrusions. The insertion block is inserted into the end of the adjacent protection tube. One side of the surrounding plate has a strip-shaped protrusion, and the other side of the surrounding plate has a strip-shaped groove that cooperates with the strip-shaped protrusion; there are three cable bodies, and there is one cable body between two adjacent radial blocks.

3. The power cable capable of achieving multi-dimensional monitoring according to claim 2, characterized in that, The cable body sequentially includes an outer sheath, an armor layer and a flame-retardant layer from outside to inside. The flame-retardant layer has multiple cable cores, and the cable core includes an insulating layer and a conductor.

4. The power cable capable of achieving multi-dimensional monitoring according to claim 2, characterized in that, It further includes a heat conduction unit. The heat conduction unit includes a cylindrical block and three arc-shaped heat conduction plates. There is a heat conduction block connected between each heat conduction plate and the cylindrical block. Each heat conduction plate has one heat conduction plate; the central tube has three through grooves, and there is one through groove between two adjacent radial blocks. Each heat conduction block passes through one through groove, and the cylindrical block is located inside the central tube; the three partition units are respectively a heat dissipation partition unit, a temperature measurement partition unit and a detection partition unit. The heat dissipation partition unit has two ventilation holes, and the two ventilation holes are located on both sides of the cylindrical block. The ventilation holes extend from the inner circumferential surface of the central tube to the outer surface of the surrounding plate; there is a temperature measurement groove at the cylindrical block, and there is a temperature measurement channel at the temperature measurement partition unit. The temperature measurement channel communicates with the temperature measurement groove, and the temperature measurement channel extends from the inner circumferential surface of the central tube to the outer surface of the surrounding plate; there is a receiving groove at the radial block of the detection partition unit, and there is a filter unit for closing the receiving groove at the receiving groove. The receiving groove is filled with desiccant particles.

5. The power cable capable of realizing multi-dimensional monitoring according to claim 4, wherein It further includes a sealing unit. The sealing unit includes two sealing rings, a strip-shaped sealing belt connecting the two sealing rings and three connecting sealing belts connecting the two sealing rings. The strip-shaped sealing belt has a strip-shaped gap, so that the strip-shaped sealing belt is divided into a first strip-shaped sealing belt and a second strip-shaped sealing belt. The second strip-shaped sealing belt is connected with a strip-shaped protruding sealing belt, and the protruding sealing belt is bonded to the first strip-shaped sealing belt by an adhesive; the sealing ring is used to seal the connection position of the functional tube and the protection tube, and the connecting sealing belt is used to seal the connection position of two adjacent surrounding plates.

6. The power cable capable of realizing multi-dimensional monitoring according to claim 4, characterized in that, The length of the insertion block is greater than or equal to one-half of the length of the functional tube.

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