Radial waterproof photovoltaic cable for overwater photovoltaic power station

Abstract

The utility model discloses a radial waterproof photovoltaic cable for an overwater photovoltaic power station, which comprises a lead and an isolation assembly arranged outside a sheath, the isolation assembly comprises an annular sleeve and a sealing sleeve, the outer surface of one side of the sealing sleeve is fixedly connected with an isolation pipe, and the inner wall of the isolation pipe is fixedly connected with a cylindrical rod. The cylindrical rod is slidably connected with the annular sleeve through the cylindrical groove, the outer wall of the cylindrical rod is movably sleeved with a spring, the isolation assembly is installed outside the sheath through the isolation assembly, the photovoltaic cable is laid in water, the sheath is wrapped by the two sealing sleeves and the isolation pipe and sealed inside, and the sheath is separated from water flow. The spring can play a role of a buffer sleeve, the isolation pipe and the sheath move up and down relatively, so that the isolation pipe resists the impact of water flow for the sheath, by utilizing the structure, the photovoltaic cable is isolated from the water flow, the impact and corrosion of the water flow to the photovoltaic cable can be reduced, the service life of the cable is prolonged, and the flexibility of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cables, and more specifically, the utility model relates to a radially waterproof photovoltaic cable for a floating photovoltaic power station. Background Art

[0002] A photovoltaic cable is a special cable used for solar power generation. A floating photovoltaic power station is a common photovoltaic power generation facility, and the floating photovoltaic power generation has strict requirements on the radial waterproof performance of the photovoltaic cable. Radial waterproofing mainly prevents water from penetrating into the cable interior from the cross-sectional direction of the cable. The traditional radially waterproof photovoltaic cable is composed of components such as a conductor, an insulating layer, and a sheath. The conductor is wrapped inside by the insulating layer and the sheath. The insulating layer and the sheath can prevent water and corrosion. However, the traditional radially waterproof photovoltaic cable still has room for improvement in terms of structure. The traditional radially waterproof photovoltaic cable is often arranged in water, and the cable will be eroded by water, which affects the service life of the cable to a certain extent. To solve the deficiencies of the prior art, we propose a radially waterproof photovoltaic cable for a floating photovoltaic power station. Summary of the Utility Model

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides a radially waterproof photovoltaic cable for a floating photovoltaic power station to solve the problems that the traditional radially waterproof photovoltaic cable still has room for improvement in terms of structure, the traditional radially waterproof photovoltaic cable is often arranged in water, and the cable will be eroded by water, which affects the service life of the cable to a certain extent.

[0004] To solve the above technical problems, the utility model provides the following technical solutions: A radially waterproof photovoltaic cable for a floating photovoltaic power station includes a conductor, an insulating layer is fixedly connected to the outer wall of the conductor, a sheath is fixedly connected to the outer wall of the insulating layer, an isolation assembly is arranged outside the sheath, and an inspection assembly is arranged on one side of the isolation assembly;

[0005] The isolation assembly includes an annular sleeve and a sealing sleeve. The annular sleeve and the sealing sleeve are fixedly installed on the outer wall of the sheath. The sealing sleeve is located on one side of the annular sleeve. An isolation pipe is fixedly connected to the outer surface of one side of the sealing sleeve. A cylindrical rod is fixedly connected to the inner wall of the isolation pipe. A cylindrical groove is formed in the outer wall of the annular sleeve. The cylindrical rod is slidably connected to the annular sleeve through the cylindrical groove. A spring is movably sleeved on the outer wall of the cylindrical rod. One end of the spring is fixedly connected to the annular sleeve, and the other end of the spring is fixedly connected to the inner wall of the isolation pipe.

[0006] Among them, the annular sleeve is made of a damping material, and there are multiple annular sleeves, which are evenly distributed along the length direction of the sheath. The cylindrical rod, the cylindrical groove and the spring are divided into multiple groups, and there are two cylindrical rods, cylindrical grooves and springs in each group, and they are symmetrically distributed on the upper and lower sides of the annular sleeve respectively. At the same time, the number of annular sleeves is equal to the number of groups of the cylindrical rod, the cylindrical groove and the spring.

[0007] Among them, there are two sealing sleeves, which are symmetrically distributed on both sides of the sheath in the length direction. At the same time, the inner walls of the two sealing sleeves are attached to the outer wall of the sheath.

[0008] Among them, the inspection component includes a base, and an air pump and an air duct are fixedly installed on the top of the base. The air duct is located on one side of the air inlet of the air pump. A heating resistor and a motor are fixedly installed on the inner wall of the air duct. The motor is located on the right side of the heating resistor. One end of the rotating shaft of the motor is fixedly connected to a fan. One of the inner walls of the sealing sleeve is fixedly connected to an air pipe one. The inner cavity of the air duct is communicated with the air outlet of the air pump through the air pipe one. The inner wall of the other sealing sleeve is fixedly connected to an air pipe two. An open box is arranged on one side of the air pipe two. The inner cavity of the air duct is connected to the inside of the open box through the air pipe two.

[0009] Among them, the inside of the open box is filled with water.

[0010] Among them, the air pipe two is a bendable hose.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] Through the isolation component of the present utility model, including two sealing sleeves and an isolation pipe, the isolation component is installed outside the sheath, and the photovoltaic cable is laid in water. Through the two sealing sleeves and the isolation pipe, the sheath is wrapped and sealed inside, so that the sheath can be separated from the water flow. Through the cylindrical rod and the spring, when the water flow surges in the photovoltaic power station, the spring can play a role of a buffer sleeve, and the isolation pipe and the sheath move relatively up and down, so that the isolation pipe resists the impact of the water flow on the sheath, thereby reducing the deformation of the sheath. At this time, the sheath can avoid the impact and erosion of the water flow. Using the above structure, the sheath is wrapped and sealed inside through the two sealing sleeves and the isolation pipe, realizing the isolation of the photovoltaic cable from the water flow, which can reduce the impact and erosion of the water flow on the photovoltaic cable, increase the service life of the cable, and improve the flexibility of the device;

[0013] The utility model includes an inspection component, which comprises an air pump. When the air pump is started to inject air into the isolation tube, if the isolation tube is intact, air bubbles will emerge from the water source in the open box. If the isolation tube is damaged, the air bubbles emerging from the water source in the open box will decrease or disappear. Seal the second air pipe. At this time, most of the water source in the isolation tube is discharged from the gap of the isolation tube. Search for air bubbles along the laying route of the photovoltaic cable. The area where air bubbles appear is the damaged area of the isolation tube. Repair the isolation tube with waterproof tape. Open the second air pipe and start the heating resistor and the motor, which can generate hot air and be injected into the inner cavity of the isolation tube by the air pump. With the above structure, by starting the air pump, it is possible to detect whether the isolation tube is damaged, quickly locate the damaged gap of the isolation tube, and at the same time dry the inside of the isolation tube, which facilitates the user to repair the photovoltaic cable and improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 is a schematic diagram of the structure of the isolation component of the utility model;

[0016] Figure 3 is a schematic diagram of the structure of the inspection component of the utility model;

[0017] Figure 4 is a partially dissected schematic diagram of the inspection component of the utility model.

[0018] [Reference Numerals]

[0019] 1, wire; 2, insulating layer; 3, sheath; 4, isolation component; 5, inspection component; 41, annular sleeve; 42, sealing sleeve; 43, isolation tube; 44, cylindrical rod; 45, cylindrical groove; 46, spring; 51, base; 52, air pump; 53, air duct; 54, heating resistor; 55, motor; 56, fan; 57, first air pipe; 58, second air pipe; 59, open box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the technical problems, technical solutions and advantages to be solved by the utility model clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] As shown in the attached Figure 1 to the attached Figure 4 An embodiment of the utility model provides a radial waterproof photovoltaic cable for a floating photovoltaic power station, which includes a wire 1. An insulating layer 2 is fixedly connected to the outer wall of the wire 1. A sheath 3 is fixedly connected to the outer wall of the insulating layer 2. An isolation component 4 is arranged outside the sheath 3. An inspection component 5 is arranged on one side of the isolation component 4;

[0022] The isolation component 4 includes an annular sleeve 41 and a sealing sleeve 42. The annular sleeve 41 and the sealing sleeve 42 are fixedly installed on the outer wall of the sheath 3. The sealing sleeve 42 is located on one side of the annular sleeve 41. A fixed connection is provided on the outer surface of one side of the sealing sleeve 42 with an isolation pipe 43. A fixed connection is provided on the inner wall of the isolation pipe 43 with a cylindrical rod 44. A cylindrical groove 45 is provided on the outer wall of the annular sleeve 41. The cylindrical rod 44 is slidably connected to the annular sleeve 41 through the cylindrical groove 45. A spring 46 is movably sleeved on the outer wall of the cylindrical rod 44. One end of the spring 46 is fixedly connected to the annular sleeve 41, and the other end of the spring 46 is fixedly connected to the inner wall of the isolation pipe 43.

[0023] Among them, the annular sleeve 41 is made of a damping material, and there are multiple annular sleeves 41, which are evenly distributed along the length direction of the sheath 3. The cylindrical rods 44, the cylindrical grooves 45 and the springs 46 are divided into multiple groups, and there are two cylindrical rods 44, cylindrical grooves 45 and springs 46 in each group, and they are symmetrically distributed on the upper and lower sides of the annular sleeve 41 respectively. At the same time, the number of the annular sleeves 41 is equal to the number of groups of the cylindrical rods 44, the cylindrical grooves 45 and the springs 46;

[0024] Through the cylindrical rod 44 and the spring 46, when the water flow surges in the photovoltaic power station, the spring 46 can play a role of a buffer sleeve, so that the isolation pipe 43 resists the impact of the water flow for the sheath 3, thereby reducing the deformation of the sheath 3.

[0025] Among them, there are two sealing sleeves 42, which are symmetrically distributed on both sides in the length direction of the sheath 3. At the same time, the inner walls of the two sealing sleeves 42 are in contact with the outer wall of the sheath 3;

[0026] Through the two sealing sleeves 42 and the isolation pipe 43, the sheath 3 is wrapped and sealed inside, so that the sheath 3 can be separated from the water flow.

[0027] Among them, the inspection component 5 includes a base 51. A fixed installation is provided on the top of the base 51 with an air pump 52 and an air duct 53. The air duct 53 is located on one side of the air inlet of the air pump 52. A fixed installation is provided on the inner wall of the air duct 53 with a heating resistor 54 and a motor 55. The motor 55 is located on the right side of the heating resistor 54. One end of the rotating shaft of the motor 55 is fixedly connected with a fan 56. A first air pipe 57 is fixedly connected to the inner wall of one of the sealing sleeves 42. The inner cavity of the air duct 53 is communicated with the air outlet of the air pump 52 through the first air pipe 57. A second air pipe 58 is fixedly connected to the inner wall of the other sealing sleeve 42. An open box 59 is provided on one side of the second air pipe 58. The inner cavity of the air duct 53 is connected to the inside of the open box 59 through the second air pipe 58.

[0028] Among them, the inside of the open box 59 is filled with water;

[0029] By using the air pump 52 to inject air into the inside of the isolation pipe 43, if the isolation pipe 43 is intact, the air will emerge from the water source in the open box 59 to form bubbles. If the isolation pipe 43 is damaged, the bubbles emerging from the water source in the open box 59 will decrease or disappear.

[0030] Among them, the second trachea 58 is a flexible hose;

[0031] By tying a knot in the second trachea 58 to seal the air outlet, when the isolation tube 43 is damaged, most of the water flowing into the isolation tube 43 can be discharged from the gap. At this time, the outer surface of the isolation tube 43 can be repaired with waterproof tape.

[0032] The working process of the present utility model is as follows:

[0033] First, install the isolation component 4 outside the sheath 3, lay the photovoltaic cable in the water, and through the two sealing sleeves 42 and the isolation tube 43, wrap and seal the sheath 3 inside, so that the sheath 3 can be separated from the water flow. Through the cylindrical rod 44 and the spring 46, when the water flow surges in the photovoltaic power station, the spring 46 can play a role of a buffer sleeve, and the isolation tube 43 and the sheath 3 move relatively up and down, so that the isolation tube 43 can resist the impact of the water flow for the sheath 3, thereby reducing the deformation of the sheath 3. At this time, the sheath 3 can avoid the impact and erosion of the water flow. After the photovoltaic cable is used for a period of time, if it is necessary to detect whether the isolation tube 43 is damaged, start the air pump 52 and inject air into the interior of the isolation tube 43. If the isolation tube 43 is intact, the air will emerge from the water source in the open box 59 to form bubbles. If the isolation tube 43 is damaged, the bubbles emerging from the water source in the open box 59 will decrease or disappear. When it is found that the isolation tube 43 is damaged, tie a knot in the second trachea 58 to seal the air outlet. At this time, most of the water source in the isolation tube 43 is discharged from the gap of the isolation tube 43. Search for bubbles along the laying route of the photovoltaic cable, and the area where bubbles appear is the damaged area of the isolation tube 43. At this time, the outer surface of the isolation tube 43 can be repaired with waterproof tape. Untie the knot of the second trachea 58, start the heating resistor 54 and the motor 55, and hot air can be generated and injected into the inner cavity of the isolation tube 43 by the air pump 52. At this time, the interior of the isolation tube 43 can be dried.

[0034] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, and can also be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change;

[0035] Secondly: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0036] Finally, the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A radial waterproof photovoltaic cable for a water-based photovoltaic power station, comprising a conductor (1), characterized in that: The outer wall of the conductor (1) is fixedly connected to an insulating layer (2), the outer wall of the insulating layer (2) is fixedly connected to a sheath (3), an isolation component (4) is arranged outside the sheath (3), and a testing component (5) is arranged on one side of the isolation component (4); The isolation assembly (4) comprises an annular sleeve (41) and a sealing sleeve (42). The annular sleeve (41) and the sealing sleeve (42) are fixedly mounted on the outer wall of the sleeve (3). The sealing sleeve (42) is located on one side of the annular sleeve (41). An isolation tube (43) is fixedly connected to the outer surface of one side of the sealing sleeve (42). A cylindrical rod (44) is fixedly connected to the inner wall of the isolation tube (43). A cylindrical groove (45) is formed on the outer wall of the annular sleeve (41). The cylindrical rod (44) is slidably connected to the annular sleeve (41) via the cylindrical groove (45). A spring (46) is movably sleeved on the outer wall of the cylindrical rod (44). One end of the spring (46) is fixedly connected to the annular sleeve (41), and the other end of the spring (46) is fixedly connected to the inner wall of the isolation tube (43).

2. The radial waterproof photovoltaic cable for a water photovoltaic power station according to claim 1, characterized in that: The annular sleeve (41) is made of a damping material, and there are a plurality of annular sleeves (41) which are evenly distributed along the length direction of the sleeve (3). The cylindrical rods (44), cylindrical grooves (45) and springs (46) are divided into a plurality of groups, and each group has two cylindrical rods (44), two cylindrical grooves (45) and two springs (46), which are symmetrically distributed on the upper and lower sides of the annular sleeve (41). At the same time, the number of annular sleeves (41) is equal to the number of groups of cylindrical rods (44), cylindrical grooves (45) and springs (46).

3. The radial waterproof photovoltaic cable for a water photovoltaic power station according to claim 1, characterized in that: There are two sealing sleeves (42), which are symmetrically distributed on both sides of the length direction of the sheath (3), and the inner walls of the two sealing sleeves (42) are in contact with the outer wall of the sheath (3).

4. The radial waterproof photovoltaic cable for a water photovoltaic power station according to claim 1, characterized in that: The inspection component (5) comprises a base (51), an air pump (52) and an air duct (53) are fixedly mounted on the top of the base (51), the air duct (53) is located on the air inlet side of the air pump (52), a heating resistor (54) and a motor (55) are fixedly mounted on the inner wall of the air duct (53), the motor (55) is located on the right side of the heating resistor (54), and a fan (56) is fixedly connected to one end of the rotating shaft of the motor (55), an air duct 1 (57) is fixedly connected to the inner wall of one of the sealing sleeves (42), and the inner cavity of the air duct (53) is communicated with the air outlet of the air pump (52) through the air duct 1 (57), and an air duct 2 (58) is fixedly connected to the inner wall of the other sealing sleeve (42), an open box (59) is provided on one side of the air duct 2 (58), and the inner cavity of the air duct (53) is communicated with the inside of the open box (59) through the air duct 2 (58).

5. The radial waterproof photovoltaic cable for a water photovoltaic power station according to claim 4, characterized in that: The open box (59) is provided with a water source inside.

6. The radial waterproof photovoltaic cable for a water photovoltaic power station according to claim 4, characterized in that: The second air pipe (58) is a flexible hose.

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