Insulation hanger capable of resisting high-voltage creepage

Abstract

An interference fit hole is formed in the center of an umbrella cap insulator in a penetrating mode, an umbrella edge is arranged on the outer side of the umbrella cap insulator in an externally-expanding mode, an umbrella bottom groove is annularly formed in the bottom end of the umbrella edge, the umbrella bottom groove is annularly formed in the outer side of the bottom end of the umbrella cap insulator, and the umbrella bottom groove is provided with an umbrella bottom. The umbrella cap insulator is in inserted interference fit with the outer side of the hanging rod through the interference fit hole, the bottom end of the umbrella cap insulator is connected with the end of the insulation connecting sleeve in an attached mode, the two sections of hanging frames can be conveniently assembled through the connecting type insulator, the step type creepage prevention function of the insulator can be achieved at the same time, and the service life of the umbrella cap insulator is prolonged. In addition, the umbrella-shaped anti-creepage effect can be further achieved by matching with the umbrella cap insulator, meanwhile, the umbrella cap insulator can be conveniently and rapidly installed in the middle of the hanging frame in an interference fit mode due to the sectional hanging frame, the production difficulty is effectively reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This article belongs to the technical field of insulating suspension, and specifically relates to an insulating suspension with anti-high-voltage creepage. Background Art

[0002] The insulating suspension inside crude oil electro-dehydration, electro-desalting and lubricating oil denitrification refining equipment is a device used to support and fix electrode plates. It is usually made of insulating materials to ensure that current does not pass through the suspension, thus affecting the dehydration, desalting and denitrification effects. During the dehydration, desalting and denitrification processes, the electrode plates generate an electric field through direct current or alternating current composite electricity, causing the water and other impurities in the crude oil to separate from the crude oil, achieving the purification of the crude oil. The design of the insulating suspension aims to provide stable support while avoiding current leakage and improving the removal efficiency.

[0003] The insulating suspension not only needs to achieve the insulating effect, but also, in order to prevent the creepage effect of the insulating suspension, it is also necessary to set up anti-creepage umbrella and other structures on the outer side of the insulating suspension to increase the creepage distance on the surface and improve the insulating effect.

[0004] However, most of the anti-creepage structures on the existing insulating suspensions are such that the structure of the insulating suspension itself is integrally formed or a whole section of anti-creepage structure is integrally wrapped on the insulating suspension. Such a complete-form insulating suspension is very inconvenient to install in the narrow space inside the equipment, and it is also very difficult to install the umbrella-shaped insulator in the middle of the suspension to ensure the anti-creepage function. Moreover, due to the high voltage and long-term use of the crude oil dehydration, desalting and lubricating oil denitrification equipment, most of the anti-creepage structures of the insulating suspensions will be damaged or even burned out after 8 - 9 months. Therefore, during regular maintenance, the entire insulating suspension and the electrode plates need to be removed and replaced, which greatly increases the assembly and maintenance burden. Summary of the Utility Model

[0005] In order to solve the above problems, this paper proposes an insulating suspension that is resistant to high-voltage creepage. The insulating suspension includes a hanging rod and an insulator. The insulator includes an umbrella cap insulator and an insulating connecting sleeve. The umbrella cap insulator is provided with an interference fit hole in the center, and the outer side of the umbrella cap insulator is provided with an umbrella edge in an outward expansion manner. The bottom end of the umbrella edge is provided with an umbrella bottom groove in an annular manner. The umbrella bottom groove is provided in an annular manner on the outer side of the bottom end of the umbrella cap insulator. The umbrella cap insulator is plugged and interfered with the outer side of the hanging rod through the interference fit hole. The bottom end of the umbrella cap insulator is connected to the end of the insulating connecting sleeve in a close fit. The insulating connecting sleeve is provided with a connecting hole in the center. The inner hole of the connecting sleeve, the left and right ends of the inner hole of the connecting sleeve are symmetrically provided with connecting sleeve threads, and the inner sides of the two ends of the insulating connecting sleeve are nested and connected with the rod end threads on the outer side of the end of the hanging rod through the connecting sleeve threads. By using the connected insulator, the two sections of the hanging frame can be conveniently assembled, and the step-type anti-creeping function of the insulator can be simultaneously achieved, and the umbrella-shaped anti-creeping effect can be achieved by cooperating with the umbrella cap insulator. At the same time, the umbrella cap insulator can be conveniently and quickly installed in the middle of the hanging frame by interference fit due to the segmented hanging frame, which effectively reduces the production difficulty and improves the production efficiency.

[0006] The hanging rod comprises an upper hanging rod and a lower hanging rod, both of which are cylindrical straight rods, both ends of which are provided with rod end threads, and the middle parts of the upper hanging rod and the lower hanging rod are provided with a rod body, the outer diameter of the rod body is the same as the outer diameter of the rod end thread, the outer diameter of the rod end thread on the outer side of the bottom end of the upper hanging rod is smaller than the outer diameter of the rod end thread on the outer side of the top end of the upper hanging rod, and the outer diameter of the rod end thread on the outer side of the bottom end of the upper hanging rod is larger than the inner diameter of the interference fit hole of the umbrella cap insulator, and the umbrella cap insulator can be assembled more conveniently through the segmented hanging bracket, and it can be conveniently installed by shrinking the outer diameter of the rod end thread at the bottom end of the upper hanging bracket. This form not only improves the production and assembly efficiency, but also reduces the damage to the hanging rod and the insulator due to the interference fit, thereby indirectly improving the service life of the insulator.

[0007] The umbrella cap insulator is an interference nested insulator. The umbrella cap insulator includes an umbrella brim, an umbrella bottom groove and an interference fit hole. The umbrella brim is annularly expanded and arranged on the outside. The narrow end of the umbrella brim is horizontally flush with the top end of the umbrella cap insulating terminal. The diameter of the wide end of the umbrella brim is greater than twice the inner diameter of the interference fit hole. An umbrella bottom groove is arranged at the bottom of the wide end of the umbrella brim. The umbrella bottom groove is an annular double-sided groove. One side of the umbrella bottom groove is obliquely connected to the umbrella brim, and the other side of the umbrella bottom groove is parallel to the hole wall of the interference fit hole. The umbrella cap insulator can achieve effective anti-creeping function, and the bottom umbrella bottom groove can also achieve a longer creeping distance. The bottom end of the umbrella cap insulator can resist the insulating connection sleeve to ensure stable contact between the umbrella cap insulator and the insulating connection sleeve and to ensure the creeping distance.

[0008] The insulating connecting sleeve is a cylindrical through-hole sleeve, the center line of the insulating connecting sleeve is aligned with the center line of the umbrella cap insulator, the bottom end surface of the insulating connecting sleeve is fitted and connected with the bottom end surface of the umbrella cap insulator, the outer diameter of the connecting sleeve of the insulating connecting sleeve is larger than the bottom end diameter of the umbrella cap insulator, and the inner diameter of the connecting sleeve of the insulating connecting sleeve is smaller than the bottom end diameter of the umbrella cap insulator. The threaded connection of the two upper hanging rods and the lower hanging rod is realized through the insulating connecting sleeve, thereby realizing high-strength connection of the hanging rods and can also realize a long creepage distance.

[0009] Beneficial effects:

[0010] By using the connecting insulator, the two sections of the hanging frame can be easily assembled, and the step-type anti-creeping function of the insulator can be achieved at the same time. In combination with the umbrella cap insulator, the umbrella-shaped anti-creeping effect can be achieved. At the same time, the umbrella cap insulator can be easily and quickly installed in the middle of the hanging frame by interference fit due to the segmented hanging frame, which effectively reduces the production difficulty and improves the production efficiency.

[0011] The segmented hanging bracket makes it easier to assemble the cap insulator. The installation can be easily performed by shrinking the outer diameter of the rod end thread at the bottom of the upper hanging bracket. This not only improves the production and assembly efficiency, but also reduces the damage to the hanging rod and insulator caused by interference fit, thereby indirectly increasing the service life of the insulator.

[0012] The umbrella cap insulator can achieve effective anti-creepage function, and the bottom umbrella groove can also achieve a longer creepage distance. The bottom end of the umbrella cap insulator can support the insulating connecting sleeve to ensure stable contact between the umbrella cap insulator and the insulating connecting sleeve, thereby ensuring the creepage distance.

[0013] The threaded connection between the two upper hanging rods and the lower hanging rod is achieved through the insulating connecting sleeve, so that a high-strength connection of the hanging rods is achieved and a long creepage distance can also be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of an insulating suspension that is resistant to high voltage creepage;

[0015] Figure 2 It is a cross-sectional view of an insulating hanging cap insulator that is resistant to high voltage creepage;

[0016] Figure 3 It is a cross-sectional view of an insulating connection sleeve of an insulating suspension that is resistant to high-voltage creepage;

[0017] Figure 4 It is a schematic diagram of a hanging rod for insulating hanging that is resistant to high voltage creepage;

[0018] In the figure: 1. Umbrella cap insulator, 11. Umbrella edge, 12. Umbrella bottom groove, 13. Interference fit hole, 2. Insulating connection sleeve, 21. Outer diameter of connection sleeve, 22. Inner hole of connection sleeve, 23. Connection sleeve thread, 3. Upper hanging rod, 4. Lower hanging rod, 5. Thread at rod end, 6. Rod body. Detailed implementation mode

[0019] To deepen the understanding of the present utility model, the present utility model will be further described in detail below in combination with embodiments and drawings. The embodiments are only used to explain the present utility model and do not constitute a limitation on the protection scope of the present utility model.

[0020] Umbrella cap insulator 1, umbrella edge 11, umbrella bottom groove 12, interference fit hole 13, insulating connection sleeve 2, outer diameter of connection sleeve 21, inner hole of connection sleeve 22, connection sleeve thread 23, upper hanging rod 3, lower hanging rod 4, thread at rod end 5, rod body 6.

[0021] As Figure 1 、 2 、3, 4 shown;

[0022] An insulating suspension for resisting high-voltage creepage, the insulating suspension comprises a suspension rod and an insulator, the insulator comprises an umbrella cap insulator 1 and an insulating connection sleeve 2, the umbrella cap insulator 1 is provided with an interference fit hole 13 in the center, the outer side of the umbrella cap insulator 1 is provided with an umbrella edge 11 in an outward expansion manner, the bottom end of the umbrella edge 11 is provided with an umbrella bottom groove 12 in an annular manner, the umbrella bottom groove 12 is arranged in an annular manner on the outer side of the bottom end of the umbrella cap insulator 1, the umbrella cap insulator 1 is plugged and interference-fitted with the outer side of the suspension rod through the interference fit hole 13, the bottom end of the umbrella cap insulator 1 is connected with the end of the insulating connection sleeve 2 in a close fit, and the The insulating connecting sleeve 2 is provided with a connecting sleeve inner hole 22 through the center, and the left and right ends of the connecting sleeve inner hole 22 are symmetrically provided with connecting sleeve threads 23. The inner sides of both ends of the insulating connecting sleeve 2 are nested and connected to the rod end threads 5 on the outer side of the end of the hanging rod through the connecting sleeve threads 23. The hanging rod includes an upper hanging rod 3 and a lower hanging rod 4. The upper hanging rod 3 and the lower hanging rod 4 are both cylindrical straight rods. Both ends of the upper hanging rod 3 and the lower hanging rod 4 are provided with rod end threads 5. The middle part of the upper hanging rod 3 and the lower hanging rod 4 is provided with a rod body 6, and the outer diameter of the rod body 6 is the same as the rod end thread 5. The outer diameter of the rod end thread 5 on the outer side of the bottom end of the upper hanging rod 3 is the same as that of the rod end thread 5 on the outer side of the top end of the upper hanging rod 3. The outer diameter of the rod end thread 5 on the outer side of the bottom end of the upper hanging rod 3 is larger than the inner diameter of the interference fit hole 13 of the umbrella cap insulator 1. The umbrella cap insulator 1 is an interference nested insulator. The umbrella cap insulator 1 includes an umbrella edge 11, an umbrella bottom groove 12 and an interference fit hole 13. The umbrella edge 11 is annularly expanded and arranged on the outside. The narrow end of the umbrella edge 11 is horizontally flush with the top end of the umbrella cap insulation terminal. The wide end diameter of the umbrella edge 11 is larger than twice the inner diameter of the interference fit hole 13. An umbrella bottom groove 12 is provided at the bottom of the wide end of the umbrella edge 11, and the umbrella bottom groove 12 is an annular double-sided groove, one side of the umbrella bottom groove 12 is obliquely connected to the umbrella edge 11, and the other side of the umbrella bottom groove 12 and the hole wall of the interference fit hole 13 are parallel to each other, and the insulating connecting sleeve 2 is a cylindrical through-hole sleeve, the center line of the insulating connecting sleeve 2 is aligned with the center line of the umbrella cap insulator 1, and the bottom end surface of the insulating connecting sleeve 2 is fitted and connected with the bottom end surface of the umbrella cap insulator 1, the outer diameter 21 of the connecting sleeve of the insulating connecting sleeve 2 is larger than the bottom end diameter of the umbrella cap insulator 1, and the inner diameter of the connecting sleeve of the insulating connecting sleeve 2 is smaller than the bottom end diameter of the umbrella cap insulator 1.

[0023] Implementation Example

[0024] Before use, rotate the upper hanging bracket first. Refrigerate the rod end thread 5 at one end of the upper hanging bracket to compress its outer diameter. Then, insert the top end of the umbrella cap insulator 1 into the outside of the upper hanging rod with an interference fit. After the umbrella cap insulator 1 is assembled with interference, screw the sleeve thread 23 on the inner side of the inner hole 22 of the insulating connecting sleeve 2 tightly onto the rod end thread 5 of the upper hanging bracket. After the end of the insulating connecting sleeve 2 fits against the bottom end of the umbrella cap insulator 1, the installation of one end of the insulating connecting sleeve 2 is completed. Finally, screw the lower hanging bracket into the lower end of the insulating connecting sleeve 2 to complete the assembly of the entire insulating hanging device.

[0025] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An insulating suspension for resisting high voltage creepage, the insulating suspension comprising a suspension rod and an insulator, characterized in that: The insulator comprises an umbrella cap insulator and an insulating connecting sleeve, wherein the center of the umbrella cap insulator is provided with an interference fit hole, the outer side of the umbrella cap insulator is provided with an umbrella edge, the bottom end of the umbrella edge is provided with an umbrella bottom groove in a ring shape, the umbrella bottom groove is provided in a ring shape on the outer side of the bottom end of the umbrella cap insulator, the umbrella cap insulator is plugged and interference fit with the outer side of the hanging rod through the interference fit hole, the bottom end of the umbrella cap insulator is fitted and connected with the end of the insulating connecting sleeve, the center of the insulating connecting sleeve is provided with a connecting sleeve inner hole, the left and right ends of the connecting sleeve inner hole are symmetrically provided with connecting sleeve threads, and the inner sides of both ends of the insulating connecting sleeve are nested and connected with the rod end threads on the outer side of the hanging rod end through the connecting sleeve threads.

2. The high voltage creepage resistant insulating suspension according to claim 1, characterized in that: The hanging rod comprises an upper hanging rod and a lower hanging rod, both of which are cylindrical straight rods, both ends of which are provided with rod end threads, and the middle part of the upper hanging rod and the lower hanging rod is provided with a rod body, the outer diameter of the rod body is the same as the outer diameter of the rod end thread, the outer diameter of the rod end thread on the outer side of the bottom end of the upper hanging rod is smaller than the outer diameter of the rod end thread on the outer side of the top end of the upper hanging rod, and the outer diameter of the rod end thread on the outer side of the bottom end of the upper hanging rod is larger than the inner diameter of the interference fit hole of the umbrella cap insulator.

3. The high voltage creepage resistant insulating suspension according to claim 1, characterized in that: The umbrella cap insulator is an interference nested insulator, and the umbrella cap insulator includes an umbrella edge, an umbrella bottom groove and an interference fit hole. The umbrella edge is annularly expanded and arranged on the outside. The narrow end of the umbrella edge is horizontally flush with the top of the umbrella cap insulating terminal. The diameter of the wide end of the umbrella edge is greater than twice the inner diameter of the interference fit hole. An umbrella bottom groove is arranged at the bottom of the wide end of the umbrella edge. The umbrella bottom groove is an annular double-sided groove. One side of the umbrella bottom groove is obliquely connected to the umbrella edge, and the other side of the umbrella bottom groove is parallel to the hole wall of the interference fit hole.

4. The high voltage creepage resistant insulating suspension according to claim 1, characterized in that: The insulating connecting sleeve is a cylindrical through-hole sleeve, the center line of the insulating connecting sleeve is aligned with the center line of the umbrella cap insulator, the bottom end surface of the insulating connecting sleeve is fitted and connected with the bottom end surface of the umbrella cap insulator, the outer diameter of the connecting sleeve of the insulating connecting sleeve is larger than the bottom end diameter of the umbrella cap insulator, and the inner diameter of the connecting sleeve of the insulating connecting sleeve is smaller than the bottom end diameter of the umbrella cap insulator.

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