Double-layer protection structure of primary and secondary fusion ring main unit

Abstract

According to the double-layer protection structure of the primary and secondary fusion ring main unit provided by the utility model, the outer layer protection plate body and the inner layer protection plate body form the double-layer protection structure, and the outer layer protection plate body can resist most external severe environmental factors, such as direct erosion of rainwater, sand dust and ultraviolet rays. And the inner-layer protection plate body is used as a second defensive line, so that the protection effect is further enhanced. Even if the outer-layer protection plate body is damaged to a certain degree, the inner-layer protection plate body can still effectively protect electrical equipment in the ring main unit, and the damage risk of external factors to the equipment is greatly reduced. The sealing rubber strip is arranged between the outer-layer protection plate body and the inner-layer protection plate body, so that a gap between the two layers of plate bodies can be effectively filled, and air, moisture and dust are prevented from entering the ring main unit. The good sealing performance not only can prevent electrical equipment from being affected with damp and rusting, but also can prevent equipment faults caused by dust accumulation, and prolongs the service life of the equipment.

Description

Technical Field

[0001] The utility model relates to the field of ring main units, and more specifically, to a double-layer protection structure for a primary-secondary integrated ring main unit. Background Art

[0002] As an important power distribution device in the power system, the ring main unit is mainly used for ring network power supply and terminal power supply, and plays a key role in ensuring the stable operation of the power system. However, in actual application scenarios, the ring main unit faces many complex environmental factors and operating conditions challenges, and the existing technologies have obvious deficiencies in dealing with these problems, making it difficult to meet the requirements of the efficient and stable operation of the ring main unit.

[0003] A ring main unit proposed in the Chinese utility model patent application No. CN201621338776.5 includes a box body and a photovoltaic module located on the top of the box body. The photovoltaic module is inclined, and the photovoltaic module is connected to a power storage component inside the box body, and the power storage component can supply power to the electrical components of the box body. The ring main unit provided by the utility model has a self-power supply system by arranging the photovoltaic module on the top of the box body, ensuring reliable power consumption and operation of the box body.

[0004] In terms of the protection structure, most of the existing ring main units adopt a single-layer protection plate design. This single-layer structure is very vulnerable when facing external harsh environmental factors. Rain, sand, and ultraviolet rays can directly erode the electrical equipment inside the ring main unit, resulting in problems such as equipment dampness, rust, and aging, greatly shortening the service life of the equipment. Once the protection plate is damaged, the internal equipment will be completely exposed to the harsh environment, seriously affecting the normal operation of the equipment and increasing the probability of faults. Moreover, the structural strength of the single-layer protection plate is limited and it is prone to deformation when subjected to external impact, unable to provide reliable protection for the internal equipment.

[0005] In terms of the sealing performance, there are no effective sealing measures between the protection plates of the existing ring main units. Air, moisture, and dust are easy to enter the inside of the ring main unit through the gaps between the plates, causing the electrical equipment to be damp and rusty. The accumulation of dust will also lead to problems such as poor heat dissipation and decreased insulation performance of the equipment, seriously affecting the reliability and stability of the equipment. At the same time, this poor sealing performance cannot effectively block the intrusion of ground moisture. In a humid environment, the electrical equipment is more likely to be affected by moisture, causing electrical faults and corrosion problems.

[0006] In terms of structural strength, the existing protective structure of the ring main unit box is relatively simple and lacks sufficient strengthening measures. When subjected to external force impact, the protective plate body is prone to deformation or even damage, unable to withstand large external forces, and it is difficult to ensure the stability of the equipment in complex environments. Especially in some special environments, such as strong wind and earthquake conditions, the structural safety of the ring main unit box cannot be effectively guaranteed. Therefore, we made improvements and proposed a double-layer protective structure for the primary-secondary integrated ring main unit box. Utility Model Content

[0007] The purpose of the present utility model is to address the problems raised in the current background technology. To achieve the above-mentioned utility model purpose, the present utility model provides the following technical solutions: A double-layer protective structure for a primary-secondary integrated ring main unit box, including a ring main unit box body, on which a high-voltage incoming cable joint and a high-voltage outgoing cable joint are provided, and a double-layer protective structure is provided on the ring main unit box body.

[0008] As a preferred technical solution of the present utility model, the double-layer protective structure includes an outer protective plate body and an inner protective plate body, and a sealing rubber strip is provided between the outer protective plate body and the inner protective plate body.

[0009] As a preferred technical solution of the present utility model, reinforcing rib plates are provided inside the inner protective plate body, and inner protective partition plates are provided above the reinforcing rib plates.

[0010] As a preferred technical solution of the present utility model, inner protective support plates are provided above the inner protective partition plates.

[0011] As a preferred technical solution of the present utility model, protective reinforcing plates are provided inside the inner protective plate body, and the protective reinforcing plates are installed in the keyway holes for the installation of the reinforcing plates.

[0012] As a preferred technical solution of the present utility model, a gas-dispersing net is provided at the front of the ring main unit box body, and a sealing and moisture-proof plate is provided at the bottom of the ring main unit box body.

[0013] As a preferred technical solution of the present utility model, cable fixing sleeves are provided for both the high-voltage incoming cable joint and the high-voltage outgoing cable joint.

[0014] As a preferred technical solution of the present utility model, a box body bottom protective connecting plate is provided at the bottom of the ring main unit box body, and the box body bottom protective connecting plate is installed on the box body bottom connecting frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The outer protective plate body and the inner protective plate body of the present utility model form a double-layer protection structure. The outer protective plate body can resist most of the external harsh environmental factors, such as the direct erosion of rain, sand and dust, and ultraviolet rays. The inner protective plate body serves as a second line of defense to further enhance the protection effect. Even if the outer protective plate body is damaged to a certain extent, the inner protective plate body can still effectively protect the electrical equipment inside the ring network cabinet, greatly reducing the damage risk of external factors to the equipment.

[0016] The sealing strip provided between the outer protective plate body and the inner protective plate body of the present utility model can effectively fill the gap between the two layers of plate bodies, preventing air, moisture and dust from entering the inside of the ring network cabinet. This good sealing performance can not only prevent the electrical equipment from getting damp and rusting, but also prevent equipment failures caused by dust accumulation, extending the service life of the equipment.

[0017] The reinforcing rib plates, inner protective partition plates, inner protective support plates and protective reinforcement plates provided inside the inner protective plate body of the present utility model work together to enhance the overall structural strength of the ring network cabinet. The reinforcing rib plates can disperse stress and prevent the inner protective plate body from deforming when subjected to external force impact. The inner protective partition plates and inner protective support plates further reinforce the protection structure, and the protective reinforcement plates are installed in the keyway holes of the reinforcement plate installation conditions, improving the resistance of the inner protective plate body to local impact, enabling the ring network cabinet to withstand greater external forces and ensuring the stability of the equipment in a complex environment.

[0018] The air dispersion net provided at the front part of the ring network cabinet body of the present utility model can realize the air circulation between the inside of the ring network cabinet and the outside. During the operation of the ring network cabinet, the heat generated by the electrical equipment can be dissipated in time through the air dispersion net, effectively reducing the temperature inside the ring network cabinet.

[0019] The sealing and moisture-proof plate provided at the bottom of the ring network cabinet body of the present utility model can effectively block the intrusion of ground moisture. In a humid environment, the sealing and moisture-proof plate can prevent moisture from penetrating into the inside of the ring network cabinet, protecting the electrical equipment from the influence of moisture, reducing electrical faults and corrosion problems caused by moisture, and improving the reliability and stability of the equipment.

[0020] Both the high-voltage incoming cable joint and the high-voltage outgoing cable joint of the present utility model are provided with cable fixing sleeves, which can firmly fix the cable at the joint. This can prevent the cable from being displaced and loosened due to external force pulling and vibration during operation, ensuring the stability and reliability of the cable connection. A stable cable connection helps to reduce faults and safety hazards caused by poor cable contact, ensuring the continuity and safety of power transmission.

[0021] The protective connection plate and connection frame at the bottom of the ring network box body of the present utility model not only enhance the protective performance of the bottom of the ring network box, but also facilitate the installation and fixation of the ring network box. During the installation process, the ring network box can be accurately installed at the designated position through the connection frame at the bottom of the box body, improving the installation efficiency. At the same time, this structural design also facilitates the movement and adjustment of the ring network box during maintenance and repair, reducing the difficulty and cost of maintenance work. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural diagram provided by the present utility model;

[0023] Figure 2 is a schematic partial structural diagram provided by the present utility model;

[0024] Figure 3 is a schematic partial structural diagram provided by the present utility model;

[0025] Figure 4 is a schematic partial structural diagram provided by the present utility model;

[0026] Figure 5 is a schematic front view structural diagram provided by the present utility model.

[0027] Labels in the figure:

[0028] 1. Ring network box body; 2. High-voltage incoming cable joint; 3. High-voltage outgoing cable joint; 4. Outer protective plate body; 5. Inner protective plate body; 6. Sealing strip; 7. Reinforcing rib plate; 8. Inner protective partition plate; 9. Inner protective support plate; 10. Protective reinforcement plate; 11. Keyway hole for installing the reinforcement plate; 12. Air dispersion net; 13. Sealing and moisture-proof plate; 14. Cable fixing sleeve; 15. Protective connection plate at the bottom of the box body; 16. Connection frame at the bottom of the box body. Detailed Embodiment

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model.

[0030] Therefore, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the claimed present utility model, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model. It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] Embodiment 1: Please refer to Figures 1 - 5 , a double-layer protection structure of a primary-secondary integrated ring main unit box, including a ring main unit box body 1, a high-voltage incoming line cable joint 2 and a high-voltage outgoing line cable joint 3 are arranged on the ring main unit box body 1, and a double-layer protection structure is arranged on the ring main unit box body 1. The double-layer protection structure includes an outer protection plate body 4 and an inner protection plate body 5, and a sealing rubber strip 6 is arranged between the outer protection plate body 4 and the inner protection plate body 5. A reinforcing rib plate 7 is arranged inside the inner protection plate body 5, and an inner protection partition plate 8 is arranged above the reinforcing rib plate 7.

[0032] An inner protection support plate 9 is arranged above the inner protection partition plate 8. A protection reinforcing plate 10 is arranged inside the inner protection plate body 5, and the protection reinforcing plate 10 is installed in a reinforcing plate installation condition keyway hole 11. A gas-dispersing net 12 is arranged at the front part of the ring main unit box body 1, and a sealing and moisture-proof plate 13 is arranged at the bottom of the ring main unit box body 1.

[0033] Both the high-voltage incoming line cable joint 2 and the high-voltage outgoing line cable joint 3 are provided with cable fixing sleeves 14. A box body bottom protection connecting plate 15 is arranged at the bottom of the ring main unit box body 1, and the box body bottom protection connecting plate 15 is installed on a box body bottom connecting frame 16.

[0034] Working principle of the double-layer protection structure of the primary-secondary integrated ring main unit box: The ring main unit box is mainly used in the power system to realize the distribution and control of high-voltage electric energy. The design of the double-layer protection structure and other protection components aims to improve the protection performance of the ring main unit box and ensure the stable and safe operation of its internal electrical equipment in a complex environment.

[0035] The outer protection plate body 4 is directly exposed to the external environment. It can block the intrusion of most external factors, such as wind, sun, rain, and sand and dust. When external rain and dust substances come into contact with the outer protection plate body 4, the outer protection plate body 4 can block them outside, reducing the impact of these substances on the inner protection plate body 5 and the internal equipment of the ring main unit box.

[0036] The inner protective plate body 5 serves as the second line of defense to further enhance the protection effect. Even if a small amount of external substances break through the outer protective plate body 4, the inner protective plate body 5 can prevent them from entering the inside of the ring main unit box. At the same time, the sealing rubber strip 6 between the inner protective plate body 5 and the outer protective plate body 4 plays a key sealing role. It can fill the gaps between the two plate bodies, prevent air, moisture, and dust from entering through the gaps, form a relatively enclosed protective space, and effectively protect the electrical equipment inside the ring main unit box.

[0037] The reinforcing rib plate 7 is arranged inside the inner protective plate body 5, and its main function is to enhance the structural strength of the inner protective plate body 5. When subjected to external impact forces, the reinforcing rib plate 7 can disperse the stress, prevent the inner protective plate body 5 from deforming or being damaged, and thus ensure the integrity and stability of the double-layer protection structure.

[0038] The inner protective partition plate 8 is located above the reinforcing rib plate 7, and it can further isolate and protect the electrical equipment inside the ring main unit box. The inner protective partition plate 8 can block foreign objects that may fall from above, and at the same time, it can also isolate heat and electromagnetic interference to a certain extent.

[0039] The inner protective support plate 9 is arranged above the inner protective partition plate 8, and it provides support for the inner protective partition plate 8 to ensure the stability of the inner protective partition plate 8, so that it can better play the protective role.

[0040] The protective reinforcement plate 10 is installed in the keyway hole 11 for installing the reinforcement plate of the inner protective plate body 5, and it can further improve the protection ability of the inner protective plate body 5. The protective reinforcement plate 10 can enhance the resistance of the inner protective plate body 5 to impact and collision external forces, and reduce the risk of protection failure caused by external factors.

[0041] During the operation of the ring main unit box, the electrical equipment inside will generate heat. If this heat cannot be dissipated in time, it will cause the temperature inside the ring main unit box to be too high, affecting the performance and service life of the electrical equipment. The air dispersion net 12 arranged at the front part of the ring main unit box body 1 can play the role of heat dissipation and ventilation. The outside air can enter the inside of the ring main unit box through the air dispersion net 12, exchange with the hot air inside, and take the heat out of the ring main unit box, so as to keep the temperature inside the ring main unit box stable and ensure that the electrical equipment operates in a suitable temperature environment.

[0042] The bottom of the ring main unit box is easily affected by the ground moisture. If the moisture enters the inside of the ring main unit box, it will cause corrosion and damage to the electrical equipment. The sealing and moisture-proof plate 13 arranged at the bottom of the ring main unit box body 1 can effectively block the intrusion of the ground moisture. The sealing and moisture-proof plate 13 has good sealing and moisture-proof performance. It can form a sealing layer at the bottom of the ring main unit box to prevent the moisture from penetrating into the inside of the ring main unit box through the bottom, and protect the electrical equipment from the influence of the humid environment.

[0043] The cable fixing sleeve 14 provided at the high-voltage incoming cable joint 2 and the high-voltage outgoing cable joint 3 is mainly used to fix the cable. During the operation of the cable, it may be affected by external pulling and vibration. If the cable is not effectively fixed, it may cause the cable joint to loosen, thus triggering a safety accident. The cable fixing sleeve 14 can firmly fix the cable at the joint, prevent the cable from displacement and shaking, ensure the connection stability and reliability of the cable joint, and ensure the safety of power transmission.

[0044] The bottom protection connecting plate 15 of the box body is installed on the bottom connecting frame 16 of the box body, which can enhance the protection performance and structural stability of the bottom of the ring main unit box. The bottom protection connecting plate 15 of the box body can block the impact and damage of external objects on the bottom of the ring main unit box. At the same time, through the connection with the bottom connecting frame 16 of the box body, the ring main unit box is firmly fixed in the installation position, preventing the ring main unit box from shaking or displacement when subjected to external forces, and ensuring the overall stability of the ring main unit box. This double-layer protection structure of the primary-secondary integrated ring main unit box provides comprehensive protection for the internal electrical equipment through the coordinated work of each protection component, ensuring the safe and stable operation of the power system.

[0045] Embodiment 2: A double-layer protection structure of a primary-secondary integrated ring main unit box. In the construction of an industrial park in a certain city, a stable and reliable power distribution system needs to be established. Since there are a large number of industrial enterprises in this industrial park, the requirements for the stability and safety of power supply are relatively high. At the same time, the climate in this area is changeable, with heavy rain in summer, cold in winter and accompanied by wind and sand, which poses a severe challenge to the protection performance of power equipment. In order to meet the power consumption needs of the industrial park and ensure the normal operation of power equipment in a complex environment, it is decided to adopt a double-layer protection structure of a primary-secondary integrated ring main unit box.

[0046] Specific installation and configuration of the ring main unit box: Select a location with a higher terrain, dry and convenient for operation and maintenance as the installation site of the ring main unit box. Before installation, level the ground first, install the bottom connecting frame 16 of the box body, and ensure that its level error does not exceed the specified range.

[0047] Install the ring main unit box body 1 on the bottom connecting frame 16 of the box body through the bottom protection connecting plate 15 of the box body, and use high-strength bolts for fixation to ensure firm connection. After installation, check the overall stability of the ring main unit box to ensure that it will not shake or displace during subsequent operation.

[0048] Installation of the outer protection plate body 4 and the inner protection plate body 5: First, install the outer protection plate body 4 on the outside of the ring main unit box body 1 according to the design requirements, and use special fixing parts to firmly fix it. During the installation process, pay attention to checking whether the splicing joints of the outer protection plate body 4 are tight to ensure that there are no obvious gaps.

[0049] Next, install the inner protective plate body 5 and also fix it using fasteners. Before installing the inner protective plate body 5, first apply a sealing strip 6 on its contact surface with the outer protective plate body 4, and then carry out the installation to ensure the sealing effect between the two layers of plate bodies.

[0050] Installation of the reinforcing rib plate 7, inner protective partition plate 8 and inner protective support plate 9:

[0051] Weld the reinforcing rib plate 7 inside the inner protective plate body 5. During the welding process, ensure the welding quality to prevent problems such as false welding and missed welding. The layout of the reinforcing rib plate 7 should be reasonable to evenly disperse stress.

[0052] Install the inner protective support plate 9 on the upper part of the inner protective partition plate 8 and use bolts to fixedly connect the inner protective support plate 9 and the inner protective partition plate 8 to ensure the stability of the inner protective partition plate 8. Then install the inner protective partition plate 8 on the upper part of the reinforcing rib plate 7 and also fix it using bolts.

[0053] Accurately install the protective reinforcement plate 10 into the keyway hole 11 for the installation condition of the reinforcement plate. During the installation process, ensure the fitting accuracy between the protective reinforcement plate 10 and the keyway hole, and use special tools to fix it firmly to improve the protection ability of the inner protective plate body 5.

[0054] Reserve the installation position of the air dispersion net 12 at the front part of the ring network box body 1, and fix the air dispersion net 12 to the box body through bolts to ensure the firm installation of the air dispersion net 12 and unobstructed ventilation openings.

[0055] Lay the sealing and moisture-proof board 13 at the bottom of the ring network box body 1 and seal its edge using sealant to ensure there are no gaps between the sealing and moisture-proof board 13 and the bottom of the box body to prevent moisture intrusion.

[0056] Install cable fixing sleeves 14 at the high-voltage incoming cable joint 2 and the high-voltage outgoing cable joint 3, pass the cable through the cable fixing sleeves 14, and use fastening devices to fix the cable firmly to prevent the cable from shifting during operation.

[0057] Operation process: When the power system starts to operate, high-voltage electrical energy enters the ring network box through the high-voltage incoming cable joint 2. The electrical equipment inside the ring network box distributes and controls the electrical energy, and then transmits the electrical energy to each electrical equipment through the high-voltage outgoing cable joint 3.

[0058] During operation, the air dispersion net 12 plays a role in heat dissipation and ventilation, dissipating the heat generated by the electrical equipment inside the ring network box to maintain the stability of the internal temperature. The double-layer protection structure, the sealing and moisture-proof board 13 and the cable fixing sleeve 14 protection components jointly ensure that the electrical equipment inside the ring network box is not affected by external environmental factors.

[0059] Regularly inspect the ring main unit, including checking the integrity of the double-layer protection structure, and checking whether the outer protection plate body 4 and the inner protection plate body 5 are damaged or deformed; check whether the sealing strip 6 is aged or fallen off, and replace it in time if there is a problem.

[0060] Clean the air dispersion net 12 to prevent the ventilation openings from being blocked by dust and sundries, and ensure good heat dissipation and ventilation effects.

[0061] Check the fastening condition of the cable fixing sleeve 14, and tighten it in time if it is loose; check whether there are abnormal phenomena such as overheating and loosening of the cable joints, and handle the problems in time if there are any.

[0062] Regularly check the sealing performance of the sealing and moisture-proof board 13, repair or replace it in time if there is damage, and prevent moisture from entering the inside of the ring main unit.

[0063] By adopting the double-layer protection structure integrated primary and secondary ring main unit, the power distribution system in this industrial park has achieved stable operation under complex climate conditions. The double-layer protection structure effectively blocks the invasion of external factors such as rain and sand, and protects the electrical equipment inside the ring main unit. The heat dissipation and ventilation functions of the air dispersion net 12 ensure that the electrical equipment operates in a suitable temperature environment, and extend the service life of the equipment. The sealing and moisture-proof board 13 and the cable fixing sleeve 14 components also play important roles, improving the moisture-proof performance of the ring main unit and the stability of cable connection. During the entire operation process, the failure rate of the ring main unit is significantly reduced, providing reliable power guarantee for the enterprises in the industrial park.

[0064] The above embodiments are only used to illustrate the present invention rather than to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or substitution of the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the present invention are covered by the scope of the claims of the present invention.

Claims

1. A double-layer protection structure for a primary-secondary integrated ring network cabinet, comprising a ring network cabinet body (1), characterized in that, A high-voltage incoming cable joint (2) and a high-voltage outgoing cable joint (3) are provided on the ring main unit box body (1), and a double-layer protection structure is provided on the ring main unit box body (1); the double-layer protection structure includes an outer protection plate body (4) and an inner protection plate body (5), and a sealing strip (6) is provided between the outer protection plate body (4) and the inner protection plate body (5); a reinforcing rib plate (7) is provided inside the inner protection plate body (5), and an inner protection partition plate (8) is provided above the reinforcing rib plate (7); an inner protection support plate (9) is provided above the inner protection partition plate (8); a protection reinforcing plate (10) is provided inside the inner protection plate body (5), the protection reinforcing plate (10) is installed in a keyway hole (11) for the installation condition of the reinforcing plate, and cable fixing sleeves (14) are provided on both the high-voltage incoming cable joint (2) and the high-voltage outgoing cable joint (3).

2. The double-layer protection structure of a primary-secondary integrated ring network cabinet according to claim 1, wherein, A gas-dispersing net (12) is provided at the front part of the ring main unit box body (1), and a sealing and moisture-proof plate (13) is provided at the bottom of the ring main unit box body (1).

3. The double-layer protection structure of a primary-secondary integrated ring network cabinet according to claim 2, wherein, A box body bottom protection connecting plate (15) is provided at the bottom of the ring main unit box body (1), and the box body bottom protection connecting plate (15) is installed on a box body bottom connecting frame (16).

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