Anti-condensation device for phase-isolated bus

Abstract

The utility model discloses a phase-isolated bus anti-condensation device, which comprises a phase-isolated bus and a bus box body, the bus box body is used for accommodating the phase-isolated bus, the phase-isolated bus is suspended in the bus box body through an insulating supporting piece connected with the bus box body, an insulating layer is covered on the inner side of the bus box body, and the insulating layer is covered on the outer side of the bus box body. The side, away from the bus box body, of the insulating layer is further provided with a moisture-proof structure, and an air gap is formed between the moisture-proof structure and the phase-isolated bus. According to the utility model, the phase-isolated bus is suspended in the bus box body, electrical connection between the bus box body and the phase-isolated bus is isolated by using the insulating layer, and meanwhile, the moisture-proof structure is arranged along the insulating layer, and an air gap is formed between the moisture-proof structure and the phase-isolated bus, so that the influence on the heat dissipation effect of the phase-isolated bus during working is avoided; and meanwhile, the moisture-proof structure can absorb moisture in the bus box body and absorb part of heat, so that the phase-isolated bus is protected in the bus box body, and the energy consumption required for preventing the phase-isolated bus from condensation is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical equipment protection, and in particular relates to an isolated-phase busbar anti-condensation device. Background Art

[0002] In AC power systems, isolated-phase busbars connect generators to main transformers and other equipment. They are an important component of power systems and are used to transmit and distribute electrical energy. They are typically used in power plants and substations to achieve three-phase output.

[0003] However, in a humid environment, condensation is prone to form on the surface of the isolated phase busbar, which not only affects the normal operation of the busbar, but may also cause electrical failures and even safety accidents. This is especially true in power plants and substations located in coastal areas, rainy areas, and high-humidity industrial sites. Existing anti-condensation methods mostly use heating devices or ventilation devices to keep the busbar box dry. However, these methods have problems such as high energy consumption and difficult maintenance, and cannot fundamentally solve the condensation problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the existing technology and provide an anti-condensation device for an isolated phase busbar. The isolated phase busbar is suspended in a busbar box, and an insulating layer is used to isolate the electrical connection between the busbar box and the isolated phase busbar. At the same time, a moisture-proof structure is arranged along the insulating layer, and there is an air gap between it and the isolated phase busbar to avoid affecting the heat dissipation effect of the isolated phase busbar during operation. At the same time, the moisture-proof structure can absorb moisture in the busbar box and absorb part of the heat, thereby protecting the isolated phase busbar in the busbar box and greatly reducing the energy consumption required for anti-condensation of the isolated phase busbar.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A phase-isolated busbar anti-condensation device, comprising:

[0007] Isolated phase busbar;

[0008] A busbar box, used for accommodating the isolated phase busbar;

[0009] In which, the phase-isolated busbar is suspended in the busbar box through an insulating support connected to the busbar box. The inner side of the busbar box is covered with an insulating layer. The side of the insulating layer away from the busbar box is also provided with a moisture-proof structure, and there is an air gap between the moisture-proof structure and the phase-isolated busbar.

[0010] In one embodiment, the insulating support member is an insulator, and a plurality of the insulators are arranged on the busbar box along its circumference. One end of each of the insulators is in contact with the isolated phase busbar, and the other end is located outside the busbar box and fixedly connected to the busbar box. Through this embodiment, the isolated phase busbar is fixedly suspended in the busbar box by using insulators, avoiding contact between the isolated phase busbar and the moisture-proof structure and the insulation layer, while ensuring the insulation effect.

[0011] In one embodiment, the moisture-proof structure includes a moisture-proof layer arranged on the surface of the side of the insulation layer away from the bus box. Through this embodiment, the moisture-proof layer is used to absorb and lock moisture to maintain the dryness inside the bus box. At the same time, the moisture-proof layer can also absorb the heat when the isolated bus is working, increase the temperature inside the bus box, avoid condensation on the surface of the isolated bus, and reduce the energy consumption required for anti-condensation.

[0012] In one embodiment, the moisture-proof structure also includes a heating element surrounding the moisture-proof layer, and the heating element is located between the moisture-proof layer and the insulating layer. Through this embodiment, the temperature inside the busbar box is increased by utilizing the provided heating element to ensure that the surface temperature of the isolated busbar is always higher than the dew point temperature.

[0013] In one embodiment, the moisture-proof layer and the heating element thereon are both located between two adjacent shed gaps on the insulator, and both sides of the moisture-proof structure are in contact with the sheds. According to this embodiment, while the insulator is used to support the isolated-phase busbar, the sheds on the insulator are used to clamp the moisture-proof layer and the heating element thereon, so that the insulator can clamp the moisture-proof structure while providing insulation support, thereby reducing additional clamping components, reducing costs, and improving the stability of the anti-condensation device.

[0014] In one embodiment, the heating element is a ceramic heating plate or a carbon fiber heating wire wrapped around the moisture-proof layer, and the heating element is connected to a heating power supply. Through this embodiment, the ceramic heating plate or the carbon fiber heating wire is evenly wrapped around the moisture-proof layer, and the heating power consumption is low. It is only necessary to ensure that the temperature of the surface of the phase-isolated busbar is higher than the dew point temperature, thereby reducing the energy consumption of anti-condensation.

[0015] In one embodiment, the busbar box is an annular structure, and the insulating layer is made of insulating material and completely covers the inner side of the busbar box to isolate the electrical connection between the busbar box and the isolated phase busbar.

[0016] In one embodiment, the moisture-proof layer is an annular structure made of silica gel or activated carbon. Through this embodiment, a material with high water absorption performance is used as the moisture-proof layer. The moisture-proof layer with an annular structure covers the inner side of the entire insulating layer, which can quickly absorb and lock the moisture in the bus box.

[0017] In one embodiment, four insulators are provided on the busbar box, and the four insulators are evenly spaced along the circumference of the busbar box. Through this embodiment, the stability of the isolated phase busbar installation is ensured.

[0018] In one embodiment, the insulator has a mounting plate at one end outside the busbar box. The mounting plate is provided with a plurality of connection holes through which bolts connected to the busbar box are passed.

[0019] The beneficial effects of the present invention are:

[0020] (1) The isolated phase busbar is suspended in the busbar box, and the electrical connection between the busbar box and the isolated phase busbar is isolated by an insulating layer, thereby improving the safety of the device. At the same time, a moisture-proof structure is arranged along the insulating layer, and there is an air gap between it and the isolated phase busbar, thereby avoiding affecting the heat dissipation effect of the isolated phase busbar during operation. At the same time, the moisture-proof structure can absorb moisture in the busbar box and heat from the isolated phase busbar during operation, thereby maintaining the dryness of the busbar box, protecting the isolated phase busbar in the busbar box, and significantly reducing the energy consumption required to prevent condensation on the isolated phase busbar.

[0021] (2) The moisture-proof layer in the moisture-proof structure can absorb the heat of the isolated phase busbar during operation, and the heating element thereon can increase the temperature inside the busbar box, ensuring that the surface temperature of the isolated phase busbar is higher than the dew point temperature, that is, it can prevent condensation on the isolated phase busbar under low energy consumption;

[0022] (3) In the entire anti-condensation device, the phase-isolated busbar is suspended and fixed in the busbar box through insulators. At the same time, the moisture-proof structure in the busbar box is also fixed by the adjacent umbrella skirts on the insulators, and the insulation layer between the moisture-proof structure and the busbar box is fixed at the same time. The entire anti-condensation device has a simple structure and high stability, and the components are easy to replace and maintain, which reduces the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be described in more detail below based on embodiments with reference to the accompanying drawings.

[0024] in:

[0025] Figure 1 Shows a schematic structural diagram of the utility model;

[0026] Figure 2 Shows a schematic diagram of the cross-sectional structure of the present utility model;

[0027] In the drawings, like reference numerals are used for like parts, but the drawings are not necessarily true to scale.

[0028] Reference numerals:

[0029] 1-phase busbar, 2-busbar box, 3-insulation layer, 4-insulator, 5-moisture-proof layer, 6-heating element, 7-bolt, 401-umbrella skirt, 402-mounting plate. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] The utility model provides a phase-isolated busbar anti-condensation device, such as Figure 1 and Figure 2 Shown, including:

[0032] Isolated phase bus 1;

[0033] The busbar box 2 is used to accommodate the isolated phase busbar 1;

[0034] The isolated-phase busbar 1 is suspended in the busbar box 2 by an insulating support connected to the busbar box 2. The inner side of the busbar box 2 is covered with an insulating layer 3. A moisture-proof structure is also provided on the side of the insulating layer 3 away from the busbar box 2. An air gap is provided between the moisture-proof structure and the isolated-phase busbar 1.

[0035] Specifically, the moisture-proof structure includes a moisture-proof layer 5 provided on the surface of the insulating layer 3 away from the busbar box 2;

[0036] It should be noted that the isolated phase busbar 1 is suspended in the busbar box 2, and the insulating layer 3 is used to isolate the electrical connection between the busbar box 2 and the isolated phase busbar 1, thereby improving the safety of the device. At the same time, the moisture-proof structure arranged along the insulating layer 3 has an air gap between it and the isolated phase busbar 1, thereby avoiding affecting the heat dissipation effect of the isolated phase busbar 1 during operation. At the same time, the moisture-proof layer 5 of the moisture-proof structure can absorb moisture in the busbar box 2 and store heat emitted by the isolated phase busbar 1 during operation, thereby maintaining the dryness of the busbar box 2 and increasing the temperature inside the busbar box 2.

[0037] In one embodiment, Figure 2 As shown, the moisture-proof structure further includes a heating element 6 surrounding the moisture-proof layer 5. The heating element 6 is located between the moisture-proof layer 5 and the insulating layer 3. That is, the heating element 6 is used to further increase the temperature inside the busbar box 2 to ensure that the surface temperature of the isolated phase busbar 1 is always higher than the dew point temperature.

[0038] Furthermore, the heating element 6 is a ceramic heating sheet or a carbon fiber heating wire wrapped around the moisture-proof layer 5. The heating element 6 is connected to a heating power supply. That is, the ceramic heating sheet or the carbon fiber heating wire with low heating power consumption is evenly wrapped around the moisture-proof layer 5 to ensure that the surface temperature of the isolated phase busbar 1 is higher than the dew point temperature, thereby reducing the energy consumption of anti-condensation.

[0039] In one embodiment, Figure 2As shown, the insulating support is an insulator 4. A plurality of insulators 4 are provided on the busbar box 2 along its circumference. One end of each insulator 4 abuts against the isolated-phase busbar 1, and the other end is located outside the busbar box 2 and fixedly connected to the busbar box 2. That is, the isolated-phase busbar 1 is fixedly suspended in the busbar box 2 by the insulator 4, avoiding contact between the isolated-phase busbar 1 and the moisture-proof structure and the insulating layer 3, while ensuring the insulation effect.

[0040] Furthermore, the moisture-proof layer 5 and the heating element 6 thereon are both located between the gaps between two adjacent sheds 401 on the insulator 4, and both sides of the moisture-proof structure are in contact with the sheds 401;

[0041] It should be noted that, in the current anti-condensation measures for the isolated-phase busbar 1, since the isolated-phase busbar 1 is located in the busbar box 2, under the dual factors of its insulation requirements and implementation difficulty, the temperature on the isolated-phase busbar 1 is often increased by externally heating the entire busbar box 2, or the dryness inside the busbar box 2 is maintained by continuously ventilating the busbar box 2 through an external ventilation device. However, these two anti-condensation measures are often remedial measures taken after condensation occurs on the isolated-phase busbar 1. For the power system, there is still a problem. The risk of failure is relatively large. If the anti-condensation operation is carried out in all weather conditions, on the one hand, the energy consumption is particularly large. On the other hand, the equipment is also prone to failure when it is operated for a long time. In this embodiment, the phase-isolated busbar 1 is suspended and fixed in the busbar box 2 by the insulator 4. At the same time, the moisture-proof structure in the busbar box 2 is also fixed by the adjacent sheds 401 on the insulator 4. At the same time, the insulating layer 3 between the moisture-proof structure and the busbar box 2 is fixed. No external equipment is required. Anti-condensation is carried out in the busbar box 2. The insulating support is used. The components complete the clamping of the components inside while supporting the isolated phase busbar 1, solving the problem of insulation and difficult implementation in the busbar box 2. The insulating layer 3 isolates the electrical connection between the busbar box 2 and the isolated phase busbar 1, improving the safety of the device. The moisture-proof layer 5 in the moisture-proof structure quickly absorbs and locks moisture to ensure the dryness inside the busbar box 2. At the same time, the moisture-proof layer 5 can also absorb the heat during the operation of the isolated phase busbar 1, increase the temperature inside the busbar box 2, and avoid the precipitation of supersaturated water vapor condensation in the air. The ceramic heating plate or carbon fiber heating wire further increases the temperature inside the busbar box 2 and can be opened and closed according to the temperature inside the busbar box 2 to ensure that the surface temperature of the isolated phase busbar 1 is higher than the dew point temperature. Compared with conventional anti-condensation devices or methods, this embodiment spontaneously absorbs moisture inside the busbar box 2 and increases the temperature inside the busbar box 2, thereby avoiding condensation on the surface of the isolated phase busbar 1 and significantly reducing energy consumption. At the same time, the entire anti-condensation device operates very stably and is suitable for long-term anti-condensation operations on the isolated phase busbar 1 in humid environments.

[0042] In one embodiment, the busbar box 2 is an annular structure, the insulating layer 3 is made of an insulating material and completely covers the inner side of the busbar box 2 to isolate the electrical connection between the busbar box 2 and the isolated phase bus 1, and the moisture-proof layer 5 is an annular structure made of silica gel or activated carbon, that is, a material with high water absorption performance is used as the moisture-proof layer 5. The annular moisture-proof layer 5 covers the inner side of the entire insulating layer 3 to quickly absorb and lock moisture in the busbar box 2;

[0043] In one embodiment, four insulators 4 are provided on the busbar box 2. The four insulators 4 are evenly spaced along the circumference of the busbar box 2. One end of the insulator 4 located outside the busbar box 2 has a mounting plate 402. The mounting plate 402 has a plurality of connection holes through which bolts 7 connected to the busbar box 2 are inserted, thereby ensuring the stability of the isolated phase bus 1 installed in the busbar box 2.

[0044] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0045] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It should be understood that many modifications may be made to the illustrative embodiments, and that other arrangements may be devised, without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in ways other than those described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be employed in conjunction with other described embodiments.

Claims

1. A phase-isolated busbar anti-condensation device, characterized in that: include: Isolated phase busbar; A busbar box, used for accommodating the isolated phase busbar; In which, the phase-isolated busbar is suspended in the busbar box through an insulating support connected to the busbar box. The inner side of the busbar box is covered with an insulating layer. The side of the insulating layer away from the busbar box is also provided with a moisture-proof structure, and there is an air gap between the moisture-proof structure and the phase-isolated busbar.

2. The isolated busbar anti-condensation device according to claim 1, characterized in that: The insulating support is an insulator, and a plurality of the insulators are arranged on the busbar box along its circumference. One end of each insulator abuts against the isolated busbar, and the other end is located outside the busbar box and fixedly connected to the busbar box.

3. The isolated busbar anti-condensation device according to claim 2, characterized in that: The moisture-proof structure includes a moisture-proof layer arranged on a surface of the insulation layer on a side away from the busbar box.

4. The isolated busbar anti-condensation device according to claim 3, characterized in that: The moisture-proof structure further includes a heating element surrounding the moisture-proof layer, and the heating element is located between the moisture-proof layer and the insulating layer.

5. The isolated busbar anti-condensation device according to claim 4, characterized in that: The moisture-proof layer and the heating element thereon are both located between two adjacent shed gaps on the insulator, and both sides of the moisture-proof structure are in contact with the sheds.

6. The isolated busbar anti-condensation device according to claim 4, characterized in that: The heating element is a ceramic heating plate or a carbon fiber heating wire surrounding the moisture-proof layer, and the heating element is connected to a heating power supply.

7. The isolated busbar anti-condensation device according to claim 1, characterized in that: The busbar box is an annular structure, and the insulating layer is made of insulating material and completely covers the inner side of the busbar box to isolate the electrical connection between the busbar box and the isolated phase busbar.

8. The isolated busbar anti-condensation device according to claim 3, characterized in that: The moisture-proof layer is an annular structure made of silica gel or activated carbon.

9. The isolated busbar anti-condensation device according to claim 2, characterized in that: The busbar box is provided with four insulators, and the four insulators are evenly spaced along the circumference of the busbar box.

10. The isolated busbar anti-condensation device according to claim 2, characterized in that: The insulator has a mounting plate at one end outside the busbar box. The mounting plate is provided with a plurality of connection holes through which bolts connected to the busbar box are passed.

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