Cable for variable environment of third-generation nuclear power station

Abstract

The invention relates to the technical field of cables, and discloses a cable for a variable environment of a third-generation nuclear power station. Comprising a cable rubber sleeve, the cable rubber sleeve is internally provided with an inner sheath, the inner sheath is filled with a filler, the filler is internally provided with an insulation shielding sleeve, and the insulation shielding sleeve is internally provided with a conductor; the side surface of the cable rubber sleeve is sleeved with a sliding ring, a rubber block is arranged on the inner wall of the sliding ring, and an embedded connecting pipe is fixedly connected to the lower surface of the sliding ring. The inclined face clamping plate can enable the limiting rod to slide towards one side to pull the spring under the extrusion influence, and the adsorption disc can adsorb and fix an external insulation tool; the friction pad can increase the friction force between the inclined plane clamping plate and the surface of an external insulation tool, so that the inclined plane clamping plate can be connected with the sliding ring, the sliding ring slides to drive the rubber block to slide, the rubber block can rub and clean foreign matters on the surface of the cable, and the cable can be suitable for different environments.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, in particular to a cable used in a variable environment of a third-generation nuclear power plant. Background Art

[0002] Third-generation nuclear power plants (NPPs) build upon first- and second-generation NPPs by incorporating more advanced technologies and safety measures to enhance their efficiency and safety. Compared to the first and second generations, third-generation NPPs prioritize environmental protection, energy efficiency, and safety. Their design philosophy is to improve economic efficiency and efficiency while ensuring safety. They utilize more advanced reactor technology and fuel cycles, resulting in higher power generation efficiency while reducing the generation of nuclear waste and the risk of radioactive material leaks. Furthermore, third-generation NPPs employ more stringent safety measures, including multiple safety barriers, automatic control systems, and emergency response mechanisms, to ensure safe operation. Cables are essential for NPPs. Cables are devices for transmitting electrical energy or signals, typically consisting of several or several groups of conductors (at least two per group) twisted together to form a rope-like cable. Each group of conductors is insulated and often twisted around a central core, covered in a highly insulating sheath. Cables are characterized by internal power supply and external insulation. Cables include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wire and an insulation layer, and are used to connect circuits, electrical appliances, etc.

[0003] When the cable is in use, it is easily affected by the climate in a changing environment due to being exposed to the outside for a long time. A large amount of foreign matter is adsorbed on the surface of the cable, corroding the cable and affecting its normal use. At the same time, during the use of the cable, the cable acts as a transmission medium for current, which makes it easy for a large amount of heat to accumulate on the surface of the cable, making it impossible to dissipate heat in a targeted manner on the cable, resulting in the cable surface temperature being too high, which can easily cause danger. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a cable for use in the variable environment of a third-generation nuclear power plant. The cable is inserted into the interior of a fitting connecting tube by an external insulating tool. When the external insulating tool is inserted into the interior of the fitting connecting tube, the inclined clamping plate is squeezed and can slide the limit rod to one side to pull the spring. When the external insulating tool is fully extended into the interior of the fitting connecting tube, the cable can squeeze the adsorption disk and discharge the air between the extrusion surface of the adsorption disk and the external insulating tool, so that the adsorption disk can adsorb and fix the external insulating tool. The friction pad can increase the friction between the surface of the inclined clamping plate and the external insulating tool, so that the cable can be connected to the sliding ring. The external insulating tool can be used to push the sliding ring to slide on the surface of the cable rubber sleeve. The sliding of the sliding ring can drive the rubber block to slide, so that the rubber block can rub and clean foreign matter on the cable surface, thereby making the cable applicable to different environments. In the same environment, due to the different installation orientations of the first air inlet hood, the second air inlet hood and the third air inlet hood, natural wind from different directions can enter the interior of the first air inlet hood, the second air inlet hood and the third air inlet hood. When the natural wind enters the interior of the first air inlet hood, the second air inlet hood and the third air inlet hood, the plastic sheet is affected by the natural wind, so that it can use the movable rod to rotate inside the first air inlet hood, the second air inlet hood and the third air inlet hood to increase the wind volume inside the first air inlet hood, the second air inlet hood and the third air inlet hood, so that the wind inside the first air inlet hood, the second air inlet hood and the third air inlet hood can enter the interior of the collecting air inlet hood through the first ventilation duct, the second ventilation duct and the third ventilation duct. The streamer flutters under the influence of the natural wind, increasing the wind volume blown by the air collecting box. The rotation of the plastic plate can increase the wind volume entering by natural wind, thereby dissipating the heat on the surface of the cable, etc., which solves the problem that the cable is not suitable for changing environments and cannot dissipate heat in a directional manner.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the present invention provides the following technical solution: comprising a cable rubber sleeve, wherein an inner sheath is arranged inside the cable rubber sleeve, the inner sheath is filled with a filler, an insulating shielding sleeve is arranged inside the filler, and a conductor is arranged inside the insulating shielding sleeve;

[0008] A sliding ring is sleeved on the side surface of the cable rubber sleeve, a rubber block is provided on the inner wall of the sliding ring, a chimeric connecting tube is fixedly connected to the lower surface of the sliding ring, both sides of the chimeric connecting tube are slidably connected to a limiting rod, an end of the limiting rod close to the chimeric connecting tube is fixedly connected to a sloped clamping plate, a friction pad is provided on the side surface of the sloped clamping plate, an end of the limiting rod away from the sloped clamping plate is fixedly connected to a baffle, a side surface of the baffle is fixedly connected to a spring, and the spring is fixedly connected to the chimeric connecting tube.

[0009] Preferably, a copper wire mesh sleeve is embedded in the inner wall of the cable rubber sleeve, and the filler wraps the copper wire mesh sleeve.

[0010] Preferably, the inner wall of the copper wire mesh sleeve is provided with a metal sheet, and the side surface of the metal sheet is provided with a rubber ball.

[0011] Preferably, a transverse plate is fixedly connected to the upper surface of the sliding ring, a first ventilation pipe is fixedly connected to the upper surface of the transverse plate, and a first air inlet cover is fixedly connected to one end of the first ventilation pipe away from the transverse plate.

[0012] Preferably, a second ventilation pipe is fixedly connected to the upper surface of the horizontal plate, and a second air inlet cover is fixedly connected to one end of the second ventilation pipe away from the horizontal plate.

[0013] Preferably, a third ventilation pipe is fixedly connected to the upper surface of the horizontal plate, and a third air inlet cover is fixedly connected to one end of the third ventilation pipe away from the horizontal plate.

[0014] Preferably, movable blocks are provided inside the first air inlet cover, the second air inlet cover and the third air inlet cover, the side surfaces of the movable blocks are movably connected to movable rods through bearings, and the upper and lower surfaces of the movable rods are provided with plastic sheets.

[0015] Preferably, an air collecting box is fixedly connected to the lower surface of the horizontal plate, a cross bar is fixedly connected to the interior of the air collecting box, and streamers are provided on the upper and lower surfaces of the cross bar.

[0016] Preferably, a fixing block is fixedly connected to the inner top wall of the chimeric connecting tube, a rubber rod is provided on the lower surface of the fixing block, and an adsorption disk is provided at one end of the rubber rod away from the fixing block.

[0017] Preferably, the lower surface of the air collecting box is open, and the air collecting box is located above the cable rubber sleeve. The first ventilation duct, the second ventilation duct, and the third ventilation duct all pass through the interior of the transverse plate and communicate with the air collecting box.

[0018] Compared with the prior art, the present invention provides a cable for use in the variable environment of a third-generation nuclear power plant, which has the following beneficial effects:

[0019] 1. The present invention utilizes an external insulating tool to be embedded in the interior of the embedding connecting tube. When the external insulating tool is embedded in the interior of the embedding connecting tube, the inclined clamping plate is squeezed and can slide the limit rod to one side to pull the spring. When the external insulating tool is fully extended into the interior of the embedding connecting tube, it can squeeze the adsorption disk and discharge the air between the adsorption disk and the extrusion surface of the external insulating tool, so that the adsorption disk can adsorb and fix the external insulating tool. The friction pad can increase the friction between the surface of the inclined clamping plate and the external insulating tool, so that it can complete the connection with the sliding ring. The external insulating tool can be used to push the sliding ring to slide on the surface of the cable rubber sleeve. The sliding of the sliding ring can drive the rubber block to slide, so that the rubber block can rub and clean foreign matter on the cable surface, thereby making the cable suitable for different environments.

[0020] 2. In the present invention, since the installation orientations of the first air inlet hood, the second air inlet hood and the third air inlet hood are different, natural winds from different orientations can enter the interior of the first air inlet hood, the second air inlet hood and the third air inlet hood. When the natural wind enters the interior of the first air inlet hood, the second air inlet hood and the third air inlet hood, the plastic sheet is affected by the natural wind, so that the movable rod can be used to rotate inside the first air inlet hood, the second air inlet hood and the third air inlet hood to increase the wind volume inside the first air inlet hood, the second air inlet hood and the third air inlet hood, so that the wind inside the first air inlet hood, the second air inlet hood and the third air inlet hood can enter the interior of the collecting air inlet hood through the first ventilation duct, the second ventilation duct and the third ventilation duct. The streamer is affected by the entry of natural wind and flutters to increase the wind volume blown by the air collecting box. The rotation of the plastic plate can increase the wind volume entering the natural wind, thereby dissipating the heat from the surface of the cable.

[0021] 3. The present invention welds the metal sheet to the inner wall of the copper wire mesh sleeve for connection. There are four metal sheets, which are respectively installed on the inner top wall, inner bottom wall, inner right wall and inner left wall of the copper wire mesh sleeve, so that the four sides of the copper wire mesh sleeve can be reinforced. Since the width of the metal sheet is relatively thin, the copper wire mesh sleeve can be bent at will. The metal sheet and the steel wire mesh sleeve can increase the toughness and strength of the cable, so that the cable can be prevented from breaking when used in bad weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle;

[0024] Figure 3 This is a schematic diagram of the internal structure of the sliding ring of the present invention;

[0025] Figure 4 This is a schematic diagram of the front view structure of the horizontal plate of the present invention;

[0026] Figure 5 for Figure 4 Schematic diagram of the structure at B in the middle;

[0027] Figure 6 This is a schematic diagram of the internal disassembly structure of the cable rubber sleeve of the present invention.

[0028] Among them: 1. Cable rubber sleeve; 2. Third ventilation duct; 3. Sliding ring; 4. Fixed block; 5. Adsorption disk; 6. Spring; 7. Friction pad; 8. Inclined clamping plate; 9. Second ventilation duct; 10. Baffle; 11. Limit rod; 12. Mosaic connecting pipe; 13. Rubber rod; 14. Rubber block; 15. Insulating shielding sleeve; 16. Third air inlet cover; 17. Filler; 18. Conductor; 19. Inner sheath; 20. Copper wire mesh sleeve; 21. Metal sheet; 22. Rubber ball; 23. First ventilation duct; 24. Cross plate; 25. Cross bar; 26. Streamer; 27. Air collecting box; 28. Movable rod; 29. Plastic sheet; 30. Movable block; 31. Second air inlet cover; 32. First air inlet cover. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6 A cable for use in a variable environment of a third-generation nuclear power plant comprises a cable rubber sleeve 1, an inner sheath 19 is provided inside the cable rubber sleeve 1, a filler 17 is filled inside the inner sheath 19, an insulating shielding sleeve 15 is provided inside the filler 17, a conductor 18 is provided inside the insulating shielding sleeve 15, a copper wire mesh sleeve 20 is embedded and connected to the inner wall of the cable rubber sleeve 1, the filler 17 wraps the copper wire mesh sleeve 20, a metal sheet 21 is provided on the inner wall of the copper wire mesh sleeve 20, and a rubber sheet is provided on the side surface of the metal sheet 21. Ball 22, when the cable is being prepared, the metal sheet 21 can be welded to the inner wall of the copper wire mesh sleeve 20 for connection. There are four metal sheets 21, which are respectively installed on the inner top wall, inner bottom wall, inner right wall and inner left wall of the copper wire mesh sleeve 20, so that the four sides of the copper wire mesh sleeve 20 can be reinforced. Since the width of the metal sheet 21 is relatively thin, the copper wire mesh sleeve 20 can be bent at will. The metal sheet 21 cooperates with the steel wire mesh sleeve to increase the toughness and strength of the cable, so that it can prevent the cable from breaking when used in bad weather.

[0031] The side surface of the cable rubber sleeve 1 is sleeved with a sliding ring 3, the inner wall of the sliding ring 3 is provided with a rubber block 14, the lower surface of the sliding ring 3 is fixedly connected with a chimeric connecting tube 12, and both sides of the chimeric connecting tube 12 are slidably connected to a limit rod 11, and the end of the limit rod 11 close to the chimeric connecting tube 12 is fixedly connected with an inclined clamping plate 8, and the side surface of the inclined clamping plate 8 is provided with a friction pad 7, and the end of the limit rod 11 away from the inclined clamping plate 8 is fixedly connected with a baffle 10, and the side surface of the baffle 10 is fixedly connected with a spring 6, and the spring 6 is fixedly connected to the chimeric connecting tube 12, and the inner top wall of the chimeric connecting tube 12 is fixedly connected with a fixed block 4, and a rubber rod 13 is provided on the lower surface of the fixed block 4, and an adsorption disk 5 is provided on the end of the rubber rod 13 away from the fixed block 4. The sliding ring 3 is sleeved on the side surface of the cable rubber sleeve 1, and an external insulating tool is used to make it movable It is embedded into the interior of the embedding connecting tube 12. When the external insulating tool is embedded into the interior of the embedding connecting tube 12, the inclined clamping plate 8 is squeezed and the limit rod 11 can slide to one side to pull the spring 6. When the external insulating tool is fully extended into the interior of the embedding connecting tube 12, it can squeeze the adsorption disk 5 and discharge the air between the adsorption disk 5 and the extrusion surface of the external insulating tool, so that the adsorption disk 5 can adsorb and fix the external insulating tool, and the friction pad 7 can increase the friction between the inclined clamping plate 8 and the surface of the external insulating tool, so that it can complete the connection with the sliding ring 3. The external insulating tool can be used to push the sliding ring 3 to slide on the surface of the cable rubber sleeve 1. The sliding of the sliding ring 3 can drive the rubber block 14 to slide, so that the rubber block 14 can rub and clean foreign matter on the surface of the cable, so that the cable can be used in different environments.

[0032] The upper surface of the sliding ring 3 is fixedly connected to a horizontal plate 24, the upper surface of the horizontal plate 24 is fixedly connected to a first ventilation pipe 23, the end of the first ventilation pipe 23 away from the horizontal plate 24 is fixedly connected to a first air inlet cover 32, the upper surface of the horizontal plate 24 is fixedly connected to a second ventilation pipe 9, the end of the second ventilation pipe 9 away from the horizontal plate 24 is fixedly connected to a second air inlet cover 31, the upper surface of the horizontal plate 24 is fixedly connected to a third ventilation pipe 2, the end of the third ventilation pipe 2 away from the horizontal plate 24 is fixedly connected to the third air inlet cover 16, the first air inlet cover 32 , the second air inlet cover 31 and the third air inlet cover 16 are both provided with a movable block 30, the side surface of the movable block 30 is movably connected to a movable rod 28 through a bearing, the upper and lower surfaces of the movable rod 28 are both provided with a plastic sheet 29, the lower surface of the horizontal plate 24 is fixedly connected to an air collecting box 27, the interior of the air collecting box 27 is fixedly connected to a cross bar 25, the upper and lower surfaces of the cross bar 25 are both provided with a streamer 26, the lower surface of the air collecting box 27 is open, the air collecting box 27 is located above the cable rubber sleeve 1, the first ventilation duct 23. The second ventilation duct 9 and the third ventilation duct 2 are both connected to the wind collecting box 27 through the interior of the horizontal plate 24. Since the first air inlet cover 32, the second air inlet cover 31 and the third air inlet cover 16 are installed in different directions, natural wind from different directions can enter the interior of the first air inlet cover 32, the second air inlet cover 31 and the third air inlet cover 16. When the natural wind enters the interior of the first air inlet cover 32, the second air inlet cover 31 and the third air inlet cover 16, the plastic sheet 29 is affected by the natural wind, so that it can use the movable rod 28 to 2. The internal rotation of the second air inlet cover 31 and the third air inlet cover 16 increases the air volume inside the first air inlet cover 32, the second air inlet cover 31 and the third air inlet cover 16, so that the wind inside the first air inlet cover 32, the second air inlet cover 31 and the third air inlet cover 16 can enter the interior of the air collecting cover through the first ventilation duct 23, the second ventilation duct 9 and the third ventilation. The streamer 26 flutters under the influence of natural wind to increase the air volume blown by the air collecting box 27. The rotation of the plastic plate can increase the air volume entering by natural wind, thereby dissipating heat from the surface of the cable.

[0033] During use, the metal sheet 21 is welded to the inner wall of the copper wire mesh sleeve 20 for connection. There are four metal sheets 21, which are respectively installed on the inner top wall, inner bottom wall, inner right wall and inner left wall of the copper wire mesh sleeve 20, so that the four sides of the copper wire mesh sleeve 20 can be reinforced. Due to the thin width of the metal sheet 21, the copper wire mesh sleeve 20 can be bent at will. The metal sheet 21 cooperates with the steel wire mesh sleeve to increase the toughness and strength of the cable. It can be embedded into the interior of the embedded connecting tube 12 using an external insulating tool. When the external insulating tool is embedded into the interior of the embedded connecting tube 12, the inclined clamping plate 8 is squeezed and the limit rod 11 can be slid to one side to pull the spring 6. When the external insulating tool is fully extended into the interior of the embedded connecting tube 12, it can squeeze the adsorption disk 5 and discharge the air between the squeeze surface of the adsorption disk 5 and the external insulating tool, so that the adsorption disk 5 can adsorb and fix the external insulating tool, and the friction pad 7 can increase the surface of the inclined clamping plate 8 and the external insulating tool. The friction force enables it to complete the connection with the sliding ring 3. The sliding ring 3 can be pushed to slide on the surface of the cable rubber sleeve 1 by using an external insulating tool. The sliding of the sliding ring 3 can drive the rubber block 14 to slide, so that the rubber block 14 can rub and clean foreign objects on the cable surface. When natural wind enters the first air inlet cover 32, the second air inlet cover 31 and the third air inlet cover 16, the plastic sheet 29 is affected by the natural wind, so that it can use the movable rod 28 to rotate inside the first air inlet cover 32, the second air inlet cover 31 and the third air inlet cover 16 to increase the air volume inside the first air inlet cover 32, the second air inlet cover 31 and the third air inlet cover 16, so that the wind inside the first air inlet cover 32, the second air inlet cover 31 and the third air inlet cover 16 can enter the interior of the air collecting cover through the first ventilation pipe 23, the second ventilation pipe 9 and the third ventilation. The streamer 26 is affected by the entry of natural wind and flutters to increase the air volume blown by the air collecting box 27. The rotation of the plastic plate can increase the air volume entering the natural wind, thereby dissipating heat from the surface of the cable.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cable for use in a variable environment of a third-generation nuclear power plant, comprising a cable rubber sheath (1), characterized in that: An inner sheath (19) is provided inside the cable rubber sheath (1), a filler (17) is filled inside the inner sheath (19), an insulating shielding sleeve (15) is provided inside the filler (17), and a conductor (18) is provided inside the insulating shielding sleeve (15); The side surface of the cable rubber sleeve (1) is sleeved with a sliding ring (3), the inner wall of the sliding ring (3) is provided with a rubber block (14), the lower surface of the sliding ring (3) is fixedly connected with a chimeric connecting tube (12), both sides of the chimeric connecting tube (12) are slidably connected with a limiting rod (11), the end of the limiting rod (11) close to the chimeric connecting tube (12) is fixedly connected with a bevel clamping plate (8), the side surface of the bevel clamping plate (8) is provided with a friction pad (7), the end of the limiting rod (11) away from the bevel clamping plate (8) is fixedly connected with a baffle (10), the side surface of the baffle (10) is fixedly connected with a spring (6), and the spring (6) is fixedly connected to the chimeric connecting tube (12).

2. A cable for use in a variable environment of a third-generation nuclear power plant according to claim 1, characterized in that: The inner wall of the cable rubber sleeve (1) is connected with a copper wire mesh sleeve (20), and the filler (17) wraps the copper wire mesh sleeve (20).

3. The cable for use in a variable environment of a third-generation nuclear power plant according to claim 1, characterized in that: The inner wall of the copper wire mesh sleeve (20) is provided with a metal sheet (21), and the side surface of the metal sheet (21) is provided with a rubber ball (22).

4. The cable for use in a variable environment of a third-generation nuclear power plant according to claim 1, characterized in that: The upper surface of the sliding ring (3) is fixedly connected to a transverse plate (24), the upper surface of the transverse plate (24) is fixedly connected to a first ventilation pipe (23), and the end of the first ventilation pipe (23) away from the transverse plate (24) is fixedly connected to a first air inlet cover (32).

5. The cable for use in a variable environment of a third-generation nuclear power plant according to claim 4, characterized in that: A second ventilation pipe (9) is fixedly connected to the upper surface of the transverse plate (24), and a second air inlet cover (31) is fixedly connected to one end of the second ventilation pipe (9) away from the transverse plate (24).

6. The cable for use in a variable environment of a third-generation nuclear power plant according to claim 4, characterized in that: The upper surface of the transverse plate (24) is fixedly connected to a third ventilation pipe (2), and one end of the third ventilation pipe (2) away from the transverse plate (24) is fixedly connected to a third air inlet cover (16).

7. The cable for use in a variable environment of a third-generation nuclear power plant according to claim 4, characterized in that: A movable block (30) is provided inside each of the first air inlet cover (32), the second air inlet cover (31) and the third air inlet cover (16); a side surface of the movable block (30) is movably connected to a movable rod (28) via a bearing; and a plastic sheet (29) is provided on the upper and lower surfaces of the movable rod (28).

8. The cable for use in a variable environment of a third-generation nuclear power plant according to claim 4, characterized in that: The lower surface of the horizontal plate (24) is fixedly connected to an air collecting box (27), the interior of the air collecting box (27) is fixedly connected to a horizontal bar (25), and the upper and lower surfaces of the horizontal bar (25) are both provided with streamers (26).

9. The cable for use in a variable environment of a third-generation nuclear power plant according to claim 1, characterized in that: The inner top wall of the chimeric connecting tube (12) is fixedly connected to a fixing block (4), a rubber rod (13) is provided on the lower surface of the fixing block (4), and an adsorption disk (5) is provided at one end of the rubber rod (13) away from the fixing block (4).

10. The cable for use in a variable environment of a third-generation nuclear power plant according to claim 8, characterized in that: The lower surface of the air collecting box (27) is open, and the air collecting box (27) is located above the cable rubber sleeve (1). The first ventilation pipe (23), the second ventilation pipe (9), and the third ventilation pipe (2) all pass through the interior of the horizontal plate (24) and communicate with the air collecting box (27).

Images