Low-loss guide cylinder
By setting up a flow guiding space and flow guiding components inside the flow guiding tube, the electric field distribution is optimized, solving the problem that existing flow guiding tubes cannot adjust the electric field, achieving a uniform distribution of the electric field, and improving the reliability of electrical equipment and the lifespan of insulation materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-31
Smart Images

Figure CN224068093U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an electrical component, specifically to a low-loss flow guide tube. Background Technology
[0002] The functions and application environments of current-conducting tubes on high-voltage electrical equipment are as follows: They play an important role in situations requiring reduced energy loss and improved transmission efficiency, such as busbars in high-voltage switchgear and contacts of circuit breakers. Current-conducting tubes can be used to improve current distribution, reduce resistance loss and temperature rise. In conductors and insulators of transmission lines, current-conducting tubes can be used to improve electric field distribution, reduce corona loss and radio interference. In leads and joints of transformers, reactors and other equipment, current-conducting tubes can be used to improve current distribution, reduce resistance loss and temperature rise.
[0003] In the prior art: 202321953224.5 A novel guide tube, this utility model discloses a novel guide tube, which relates to the field of single crystal silicon processing technology; this utility model includes a first guide tube and a second guide tube, the second guide tube being located inside the first guide tube; in this utility model, the carbon felt to be added is placed in the accommodating space, a portion is pre-filled, and the carbon felt can be directly pressed by the pressing block set on the lower surface of the sealing plate, and then more carbon felt is added, and then pressed by the pressing block until the carbon felt tightly fills the accommodating space, without the need for workers to use additional tools, a first sealing ring is provided in the first placement groove opened on the sealing plate, the first sealing ring will seal the gap between the second guide tube and the sealing plate and the accommodating space, and the second sealing ring inside the second placement groove will seal the gap between the top of the first guide tube and the accommodating space, thereby making the accommodating space completely sealed.
[0004] Although the existing flow guide tube can ensure that the carbon felt located in the accommodating space can stably perform its thermal insulation performance, it cannot adjust the distribution of the electric field inside the electrical equipment. Utility Model Content
[0005] To overcome the shortcomings of existing technologies in terms of poor adjustment of electric field distribution, this invention provides a low-loss guide tube.
[0006] This utility model is achieved using the following technical solution: a low-loss guide tube, comprising a guide tube, an internal guide space, an assembly component (an assembly flange) on one side of the guide tube, bolts for assembly on the assembly flange, a guide component inside the guide tube, a side groove on the inner wall of the guide tube, side assembly blocks on both sides of the guide component, the side assembly blocks being inserted into the side groove, the guide component being an intermediate guide valve block, a guide hole on the intermediate guide valve block, a guide space within the guide hole, and a side guide plate within the guide space.
[0007] An assembly component is provided between the side guide plate and the guide hole. The assembly component is an assembly rod, which fixes the side guide plate by threads.
[0008] The assembly rod is divided into a front assembly rod and a rear assembly rod. The height of the front assembly rod is lower than that of the rear assembly rod. The side guide plates are distributed obliquely in the guide holes.
[0009] The guide tube has a tail assembly component on one side, which is a tail assembly plate, and the tail assembly plate has a side boss.
[0010] The side boss is provided with a side threaded hole, and a side mounting rod is provided in the side threaded hole. The side mounting rod is a side mounting threaded rod.
[0011] Compared to existing technologies, the current-guiding space in this invention allows for a stable electric field released by components within the current-guiding tube. The current-guiding space inside the tube provides a relatively uniform environment for the distribution of the electric field. The presence of the current-guiding tube allows the electric field lines to be distributed more evenly within the tube, reducing local concentration of electric field intensity. When the electric field is evenly distributed, the electric field stress borne by the insulating material inside the electrical equipment is also more uniform. This helps to extend the service life of the insulating material and reduce the risk of partial discharge and insulation breakdown caused by uneven electric field. When electrical components need to be installed, they can be placed within the current-guiding space. An intermediate current-guiding valve block is installed in the current-guiding space to separate different electrical components, making the electric field released by the electrical components more uniform and preventing uneven electric field distribution.
[0012] The flow guide holes on the middle flow guide valve block, the internal flow guide space, and the side flow guide plates further optimize the distribution of the electric field. Electrical components can be arranged inside the flow guide holes, allowing for placement of electrical components at different positions. This makes the electric field released by the electrical components more uniform, resulting in a more ideal distribution of the electric field within the flow guide holes. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the structure of this utility model;
[0016] In the diagram: 1 is the flow guide tube, 2 is the flow guide space, 3 is the assembly flange, 4 is the side groove, 5 is the side assembly block, 6 is the middle flow guide valve block, 7 is the flow guide hole, 8 is the side flow guide plate, 9 is the assembly rod, 10 is the tail assembly plate, and 11 is the side assembly rod. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0018] A low-loss flow guide tube includes a flow guide tube 1 with a flow guide space 2 inside. An assembly component, a flange 3, is provided on one side of the flow guide tube 1, and bolts are provided on the flange 3. A flow guide component is located inside the flow guide tube 1, and a side groove 4 is provided on the inner wall of the flow guide tube 1. Side assembly blocks 5 are provided on both sides of the flow guide component, and the side assembly blocks 5 are inserted into the side groove 4. The flow guide component is a central flow guide valve block 6, which has a flow guide hole 7. A flow guide space is provided within the flow guide hole 7, and a side flow guide plate 8 is provided within the flow guide space.
[0019] The current-guiding space stabilizes the electric field released by the components inside the current-guiding cylinder 1. The current-guiding space inside the current-guiding cylinder 1 provides a relatively uniform environment for the distribution of the electric field. The presence of the current-guiding cylinder 1 allows the electric field lines to be distributed more evenly inside the cylinder, reducing local concentrations of electric field intensity. When the electric field is evenly distributed, the electric field stress borne by the insulating material inside the electrical equipment is also more uniform. This helps extend the service life of the insulating material and reduces the risk of partial discharge and insulation breakdown caused by uneven electric field.
[0020] The flow guide holes on the intermediate flow guide valve block 6, the internal flow guide space, and the side flow guide plate 8 further optimize the distribution of the electric field. Electrical components can be arranged inside the flow guide holes 7. This allows the electrical components to be placed in different positions using the flow guide holes, which makes the electric field released by the electrical components more uniform, so that the electric field presents a more ideal distribution state within the flow guide holes.
[0021] An assembly component, namely an assembly rod, is provided between the side guide plate 8 and the guide hole 7. The assembly rod 9 is fixed to the side guide plate by threads. The assembly rod 9 is divided into a front assembly rod and a rear assembly rod. The height of the front assembly rod is lower than that of the rear assembly rod. The side guide plate 8 is obliquely distributed in the guide hole. The side groove 4 and the side assembly block 5 can make the electric field more evenly distributed at the edge and corner of the guide cylinder 1, reduce the sudden change of electric field intensity, increase the contact area between the guide component and the inner wall of the guide cylinder 1, improve the stability of the conductive path, and further suppress the influence of edge effect.
[0022] A tail assembly component is provided on one side of the guide tube 1. The tail assembly component is a tail assembly plate 10. A side boss is provided on the tail assembly plate 10. A side threaded hole is provided on the side boss. A side assembly rod 11 is provided in the side threaded hole. The side assembly rod 11 is a side assembly threaded rod.
[0023] The assembly components on the mounting flange 3 and the tail assembly plate 10 facilitate effective assembly between the guide tube 1 and other electrical equipment. By rationally designing the shape and position of the assembly components, the electric field transitions more smoothly in these areas, reducing electric field concentration. The rational assembly structure enhances the connection stability between the guide tube 1 and other electrical equipment components. The bolts on the mounting flange 3 and the side-mounted threaded rods on the tail assembly plate ensure a tight connection between the guide tube 1 and other components, preventing loosening and vibration during equipment operation. This stable connection helps maintain a stable electric field distribution and improves the reliability of the electrical equipment. Furthermore, the reliability of the assembly structure facilitates equipment maintenance and repair; when the guide tube or other components malfunction, they can be quickly replaced and repaired.
[0024] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A low-loss flow guide tube, comprising a flow guide tube, wherein a flow guide space is provided inside the flow guide tube, an assembly component is provided on one side of the flow guide tube, the assembly component is an assembly flange, the assembly flange is provided with assembly bolts, a flow guide component is provided inside the flow guide tube, a side groove is provided on the inner wall of the flow guide tube, and side assembly blocks are provided on both sides of the flow guide component, the side assembly blocks being inserted into the side groove, characterized in that: The flow guide component is an intermediate flow guide valve block, the intermediate flow guide valve block is provided with a flow guide through hole, the flow guide through hole is provided with a flow guide space, and the flow guide space is provided with a side flow guide plate.
2. A low loss fairing as claimed in claim 1, characterized in that: The assembly component is an assembly rod, and the assembly rod is fixed to the side flow guide plate through threads.
3. A low loss fairing as claimed in claim 2, characterised in that: The assembly rod is divided into a front assembly rod and a rear assembly rod, the height of the front assembly rod is lower than the height of the rear assembly rod, and the side flow guide plate is obliquely arranged in the flow guide through hole.
4. A low loss fairing as defined in claim 1, wherein: One side of the flow guide cylinder is provided with a tail assembly component, the tail assembly component is a tail assembly plate, and the tail assembly plate is provided with a side boss.
5. A low loss fairing as defined in claim 4, wherein: The side boss is provided with a side threaded hole, the side threaded hole is provided with a side assembly rod, and the side assembly rod is a side assembly threaded rod.
Citation Information
Patent Citations
Novel guide cylinder
CN220246324U