CN218513247U - 550kV 8000A GIS equipment outgoing line hollow porcelain insulator - Google Patents
550kV 8000A GIS equipment outgoing line hollow porcelain insulator Download PDFInfo
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- CN218513247U CN218513247U CN202222648894.8U CN202222648894U CN218513247U CN 218513247 U CN218513247 U CN 218513247U CN 202222648894 U CN202222648894 U CN 202222648894U CN 218513247 U CN218513247 U CN 218513247U
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Abstract
A550kV 8000A GIS equipment outgoing line hollow porcelain insulator comprises a porcelain piece, an upper flange and a lower flange, wherein the upper flange and the lower flange are connected to two ends of the porcelain piece; the upper hole section is of a conical structure, the lower hole section is of a cylindrical structure, the upper hole section is provided with a conical inner hole, the lower hole section is provided with a cylindrical inner hole, and the major diameter of the conical inner hole is equal to the inner diameter of the cylindrical inner hole; the outer walls of the upper hole section and the lower hole section are respectively provided with a plurality of umbrella-shaped structures, and the umbrella-shaped structures comprise large umbrellas and small umbrellas which are alternately arranged; the porcelain piece is divided into a plurality of sections and is formed by inorganic bonding, inorganic bonding glaze is coated at the interface of each section of porcelain piece, and all the sections of porcelain pieces bonded together through the inorganic bonding glaze are sintered into a whole. The utility model discloses satisfy 550kV transmission network and high capacity GIS equipment that rated current is 8000A demand of being qualified for the next round of competitions.
Description
Technical Field
The utility model relates to a high-voltage insulator, concretely relates to 550kV 8000A GIS equipment is qualified for next round of competitions hollow porcelain insulator, is particularly useful for 550kV transmission network rated current to be 8000A's GIS equipment and is qualified for next round of competitions.
Background
With the continuous progress of high-voltage technology, sulfur hexafluoride combined electrical appliances (GIS) products are promoted to develop towards large capacity and miniaturization in various voltage levels, and the rated current of the traditional 550kV power transmission network is improved from 4000A and 5000A to 6300A.
Meanwhile, with the rapid development of an electric power system, a power grid framework becomes more and more huge and complex, the interconnection of target net racks of a super-high voltage large power grid becomes the inevitable trend of the development of the reliability of the system, and the core equipment of the system is large-capacity super-high voltage switch equipment.
At present, no hollow porcelain insulator which can be applied to a 550kV GIS outgoing line with rated current of 8000A exists in the industry, and the general rated current of the conventional 550kV outgoing line is 4000A current and the maximum rated current is only 6300A, so that the conventional 550kV hollow porcelain insulator cannot be applied to 8000A high-capacity GIS equipment, and the conventional sleeve structure cannot meet the electric field requirement due to the large current of 8000A.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the problem among the above-mentioned prior art, provide a 550kV 8000A GIS equipment is qualified for next round of competitions hollow porcelain insulator, satisfy 550kV transmission network and rated current for 8000A's large capacity GIS equipment demand of being qualified for the next round of competitions.
In order to achieve the above object, the present invention provides the following technical solutions:
A550kV 8000A GIS equipment hollow porcelain insulator of being qualified for next round of competitions, including porcelain, upper flange and lower flange connected to both ends of porcelain, the said porcelain is made up of upper hole section and lower hole section, the upper flange is connected to the head of the upper hole section, the lower flange is connected to the foot section of the lower hole section; the upper hole section is of a conical structure, the lower hole section is of a cylindrical structure, the upper hole section is provided with a conical inner hole, the lower hole section is provided with a cylindrical inner hole, and the major diameter of the conical inner hole is equal to the inner diameter of the cylindrical inner hole; the outer walls of the upper hole section and the lower hole section are respectively provided with a plurality of umbrella-shaped structures, and the umbrella-shaped structures comprise large umbrellas and small umbrellas which are alternately arranged; the ceramic piece is divided into a plurality of sections and is formed by inorganic bonding, inorganic bonding glaze is coated at the joint of each section of the ceramic piece, and all the sections of the ceramic piece which are bonded together through the inorganic bonding glaze are sintered into a whole.
As a preferred proposal of the utility model, the small diameter of the conical inner hole is phi (300 +/-9) mm, and the inner diameter of the cylindrical inner hole is phi (500 +/-9) mm.
As a preferred scheme of the utility model, the distance is (5520 +/-5) mm between the outside surface of upper flange and lower flange, and the porcelain spare divide into 3 sections along the axial.
As an optimized proposal of the utility model, the upper flange and the lower flange are both made of cast aluminum alloy, and the surface is treated by hard anodic oxidation.
As an optimal scheme of the utility model, adopt cement adhesive to glue between the both ends of upper flange, lower flange and porcelain spare and be connected.
As a preferred scheme of the utility model, the extending distance of the large umbrella and the small umbrella is 66mm and 51mm respectively, the large umbrella spacing is 70mm, the ratio of the large umbrella spacing to the large umbrella extending distance is 1.06, the umbrella structure further comprises 1 thick umbrella arranged at the tail part of the outer wall of the lower hole section, and the thick umbrella is connected with the last large umbrella; the porcelain piece has 71 big umbrellas, 70 small umbrellas and 1 thick umbrella.
As a preferred scheme of the utility model, the maximum diameter of the umbrella-shaped structure is the large diameter of the outer wall of the lower hole section, and the minimum diameter is the small diameter of the head of the upper hole section; the maximum diameter of the umbrella is phi 722mm, and the minimum diameter of the umbrella is phi 473mm.
As a preferred scheme of the utility model, the minimum creepage distance of porcelain spare is 19428mm.
As an optimized proposal of the utility model, the straight line height of the lower hole section is 2000mm.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model discloses can be used to the large capacity 550kV 8000A combined electrical equipment of main equipment and be qualified for the next round of competitions, the porcelain comprises last hole section and lower hole section, goes up the flange joint at the head of last hole section, and lower flange joint is at the afterbody of lower hole section, and the last hole section is conical structure, and the lower hole section is cylindrical structure, and the last hole section has conical hole, and the lower hole section has cylindrical hole, prolongs the big footpath of conical hole on length through cylindrical hole, makes the utility model discloses sleeve pipe internal clearance can satisfy 8000A large capacity GIS equipment and be qualified for the next round of competitions needs. The utility model discloses the outer wall of upper hole section and lower hole section has all processed umbrella-type structure, and umbrella-type design is the open umbrella structure of size, is applicable to the dirty area of e level, and resistant dirty sudden strain of a muscle performance preferred. The utility model discloses a porcelain spare divide into a plurality of sections, adopts inorganic bonding to form, and the kneck of single section porcelain spare has been smeared inorganic bonding glaze, and whole single section porcelain spare through inorganic bonding glaze bondd together is a whole through the secondary sintering, because the bonding glaze is inorganic silicate material, consequently has better ageing resistance. The utility model discloses can break through current electric wire netting transmission current's restriction, satisfy rated current 8000A's GIS equipment needs.
Further, the utility model discloses an upper flange adopts cast aluminum alloy to make with lower flange, and adopt cement adhesive cementing to be connected between the both ends of porcelain spare, and the flange surface adopts stereoplasm anodic oxidation to handle, has increased the corrosion resisting property and the appearance quality of flange.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the structure of a 550kV 8000A GIS device outgoing line hollow porcelain insulator;
in the drawings: 1-upper flange; 2-porcelain piece; 3-lower flange; 21-a top hole section; 22-a down hole section; 4-cement adhesive.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Based on the embodiment in the present invention, a person skilled in the art can also perform a plurality of simple modifications and decorations without creative work, and all other embodiments obtained belong to the protection scope of the present invention.
Reference in the specification to "an example" means that a particular feature, structure, or characteristic described in connection with the example may be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by a person skilled in the art that the embodiments described in the present invention can be combined with other embodiments.
The construction of the 500kV main grid frame gradually solves the large-area power failure risk of the power grid, avoids safety problems such as mutual influence of alternating current and direct current, improves the safety and reliability of power supply, and enables the regional power grid to be changed to a more intelligent, efficient, reliable and green direction.
As shown in fig. 1, the utility model provides a 550kV 8000A GIS equipment hollow porcelain insulator of being qualified for next round of competitions, including porcelain 2 and connect last flange 1 and lower flange 3 at porcelain 2 both ends, porcelain 2 comprises last hole section 21 and lower hole section 22, and last flange 1 is connected at the head of last hole section 21, and lower flange 3 is connected at the afterbody of lower hole section 22. The utility model discloses a last hole section 21 is conical structure, and lower hole section 22 is cylindrical structure, and last hole section 21 has conical hole, and lower hole section 22 has cylindrical hole, and the big footpath of conical hole equals with the internal diameter of cylindrical hole. In this embodiment, the small diameter of the conical inner hole is phi (300 +/-9) mm, the inner diameter of the cylindrical inner hole is phi (500 +/-9) mm, the distance between the outer side surfaces of the upper flange 1 and the lower flange 3 is (5520 +/-5) mm, that is, the total length of the insulator is (5520 +/-5) mm, and the linear height of the lower hole section 22 is 2000mm.
The porcelain 2 of this embodiment is divided into three sections, and is formed by inorganic bonding, and inorganic bonding glaze is smeared at the interface of the single section porcelain 2, and the three sections of the single section porcelain 2 bonded together by the inorganic bonding glaze are sintered into a whole by secondary firing. The utility model discloses a single section porcelain 2 adopts isostatic pressing dry process shaping, cuts after single section porcelain 2 goes out the kiln and grinds, paints the bonding glaze in grinding the interface, through the secondary back of firing, sinters as whole through the bonding glaze with the porcelain matter of single section porcelain 2, and the bonding glaze combines with porcelain matter mutually. Because the bonding glaze is inorganic silicate material, consequently, the utility model discloses a porcelain spare 2 has better ageing resistance, and the size that has also solved hollow porcelain insulator simultaneously is too big, adopts current integrated into one piece's mode, can't realize the problem of processing.
The utility model discloses the umbrella-shaped structure that a plurality of truncated cone formed has all been processed to the outer wall of last hole section 21 and lower hole section 22, and umbrella-shaped structure is including the big umbrella and the little umbrella of arranging in turn. In an alternative embodiment, the extending distances of the large umbrella and the small umbrella are 66mm and 51mm respectively, the distance between the large umbrellas is 70mm, the ratio of the distance between the large umbrellas to the extending distance of the large umbrella is 1.06, the umbrella structure further comprises 1 thick umbrella arranged at the tail part of the outer wall of the lower hole section 22, the thickness of the thick umbrella is larger than that of the large umbrella and the small umbrella for hoisting, and the thick umbrella is connected with the large umbrella arranged at the last umbrella. The porcelain 2 of the embodiment has 71 big umbrellas, 70 small umbrellas and 1 thick umbrella, and the minimum creepage distance of the porcelain 2 is 19428mm. The maximum diameter of the umbrella-shaped structure is the diameter of the large umbrella on the outer wall of the lower hole section 22, the minimum diameter of the umbrella is the diameter of the small umbrella at the head of the upper hole section 21, the maximum diameter of the umbrella is phi 722mm, and the minimum diameter of the umbrella is phi 473mm. The diameter of the first large umbrella at the head of the upper hole section 21 is phi 502mm, the height of the upper flange 1 is 150mm, the height of the lower flange 3 is 250mm, and the outer diameter of the lower flange 3 is phi 760mm. The utility model discloses go up flange 1 and lower flange 3 and adopt cast aluminum alloy to make, the surface adopts stereoplasm anodic oxidation to handle, has increased the corrosion resisting property and the appearance quality of flange. And simultaneously, the utility model discloses the product surface of hollow porcelain insulator goes up the one deck and is smooth, shiny and hard brown glaze, has improved the mechanical and electrical properties of product. Furthermore, the upper flange 1, the lower flange 3 and the two ends of the porcelain piece 2 are connected by cementing cement 4.
The utility model discloses can satisfy the demand that 550kV 8000A large capacity GIS equipment was qualified for the next round of competitions, be applicable to the dirty area of e level, for in the 500kV exchanges special high voltage transmission engineering, 8000A large capacity GIS equipment is qualified for the next round of competitions and provides the condition, makes through the technical bottleneck.
The present invention has been described above with reference to specific features and embodiments thereof, and it will be apparent that various modifications and combinations can be made thereto without departing from the spirit and scope of the invention. Accordingly, the specification and figures are merely exemplary of the invention as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the invention. It is apparent that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention, and those modifications and modifications also fall within the scope of the claims and their equivalents.
Claims (9)
1. The utility model provides a hollow porcelain insulator of 550kV 8000A GIS equipment outgoing line which characterized in that: the ceramic part comprises a ceramic part (2), and an upper flange (1) and a lower flange (3) which are connected to two ends of the ceramic part (2), wherein the ceramic part (2) consists of an upper hole section (21) and a lower hole section (22), the upper flange (1) is connected to the head of the upper hole section (21), and the lower flange (3) is connected to the tail of the lower hole section (22); the upper hole section (21) is of a conical structure, the lower hole section (22) is of a cylindrical structure, the upper hole section (21) is provided with a conical inner hole, the lower hole section (22) is provided with a cylindrical inner hole, and the major diameter of the conical inner hole is equal to the inner diameter of the cylindrical inner hole; the outer walls of the upper hole section (21) and the lower hole section (22) are respectively provided with a plurality of umbrella-shaped structures, and the umbrella-shaped structures comprise large umbrellas and small umbrellas which are alternately arranged; the porcelain piece (2) is divided into a plurality of sections and is formed by inorganic bonding, inorganic bonding glaze is smeared at the interface of the single-section porcelain piece (2), and all the single-section porcelain pieces (2) bonded together through the inorganic bonding glaze are sintered into a whole.
2. The 550kV 8000A GIS equipment hollow porcelain insulator that is qualified for next round of competitions of claim 1, characterized in that: the small diameter of the conical inner hole is phi 291 mm-phi 309mm, and the inner diameter of the cylindrical inner hole is phi 491 mm-phi 509mm.
3. The 550kV 8000A GIS equipment hollow porcelain insulator that is qualified for next round of competitions of claim 1, characterized in that: the distance between the outer side surfaces of the upper flange (1) and the lower flange (3) is 5515-5525 mm, and the porcelain piece (2) is divided into 3 sections along the axial direction.
4. The 550kV 8000A GIS equipment outgoing line hollow porcelain insulator of claim 1, characterized in that: the upper flange (1) and the lower flange (3) are both made of cast aluminum alloy, and the surfaces of the upper flange and the lower flange are subjected to hard anodic oxidation treatment.
5. The 550kV 8000A GIS equipment hollow porcelain insulator that is qualified for next round of competitions of claim 4, characterized in that: the upper flange (1), the lower flange (3) and the two ends of the porcelain piece (2) are connected by cementing cement (4).
6. The 550kV 8000A GIS equipment outgoing line hollow porcelain insulator of claim 1, characterized in that: the extending distances of the large umbrella and the small umbrella are respectively 66mm and 51mm, the distance between the large umbrella and the small umbrella is 70mm, the ratio of the distance between the large umbrella and the extending distance of the large umbrella is 1.06, the umbrella-shaped structure also comprises 1 thick umbrella arranged at the tail part of the outer wall of the lower hole section (22), and the thick umbrella is connected with the last large umbrella; the porcelain piece (2) has 71 big umbrellas, 70 small umbrellas and 1 thick umbrella.
7. The 550kV 8000A GIS equipment outgoing line hollow porcelain insulator of claim 6, characterized in that: the maximum diameter of the umbrella-shaped structure is the diameter of a large umbrella on the outer wall of the lower hole section (22), and the minimum diameter of the umbrella is the diameter of a small umbrella at the head of the upper hole section (21); the maximum umbrella diameter is phi 722mm, and the minimum umbrella diameter is phi 473mm.
8. The 550kV 8000A GIS equipment outgoing line hollow porcelain insulator of claim 6, characterized in that: the minimum creepage distance of the porcelain piece (2) is 19428mm.
9. The 550kV 8000A GIS equipment outgoing line hollow porcelain insulator of claim 1, characterized in that: the straight-line height of the lower hole section (22) is 2000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222648894.8U CN218513247U (en) | 2022-09-30 | 2022-09-30 | 550kV 8000A GIS equipment outgoing line hollow porcelain insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222648894.8U CN218513247U (en) | 2022-09-30 | 2022-09-30 | 550kV 8000A GIS equipment outgoing line hollow porcelain insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218513247U true CN218513247U (en) | 2023-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222648894.8U Active CN218513247U (en) | 2022-09-30 | 2022-09-30 | 550kV 8000A GIS equipment outgoing line hollow porcelain insulator |
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|---|---|
| CN (1) | CN218513247U (en) |
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2022
- 2022-09-30 CN CN202222648894.8U patent/CN218513247U/en active Active
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