CN206210497U - A kind of variable cross-section insulated porcelain sleeve suitable for 500kv transformers - Google Patents
A kind of variable cross-section insulated porcelain sleeve suitable for 500kv transformers Download PDFInfo
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- CN206210497U CN206210497U CN201621344045.1U CN201621344045U CN206210497U CN 206210497 U CN206210497 U CN 206210497U CN 201621344045 U CN201621344045 U CN 201621344045U CN 206210497 U CN206210497 U CN 206210497U
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Abstract
A kind of variable cross-section insulated porcelain sleeve suitable for 500kv transformers, including the porcelain body with hollow core valve film perforation, the upper and lower end face of this porcelain body is provided with convex rank, porcelain body between the upper and lower convex rank is three rank variable section structures, rank is up-small and down-big cone cylinder structure thereon, it is highly 800mm, and the external diameter of cone cylinder diameter upper surface is 160mm, and the external diameter of lower surface is 200mm；Scala media is straight tube structure, and it is highly 300mm；And lower rank is up big and down small back taper barrel structure, it is highly 640mm, and the external diameter of cone cylinder diameter upper surface is 200mm, and the external diameter of lower surface is 160mm.The utility model has the physical property that shock resistance is good, bending resistance destrabilizing moment is big, at the same pressure-resistant degree is high, creep distance big, with preferably electric property.
Description
Technical field
The utility model is related to the insulated porcelain sleeve technical field in power equipment, specially a kind of to be applied to 500kv transformations
The variable cross-section insulated porcelain sleeve of device.
Background technology
Porcelain shell for transformer is that the high-voltage line of inside transformer is guided into outgoing line device outside fuel tank through case lid, and it not only makees
It is the insulation against ground of lead, but also plays a part of anchor leg, is one of important annex of transformer.
In the prior art, porcelain shell for transformer is being related to high voltage generally using whole insulator as its external insulation structure
In grade insulated porcelain sleeve, general porcelain knob is all cylinder, and structure design is unreasonable, can cause insulator pressure-resistant degree in itself
Low, creep age distance is small, and requirement is not reached in bending resistance destrabilizing moment, influences its performance, thus, start to use in many fields
The insulated porcelain sleeve of some variable cross-sections, can, two ends less variable cross-section insulator big using intermediate ends such as in some transformers.But
Although existing variable cross-section insulator be able to can meet the requirements in structure snd size, its structure design is generally unreasonable, it is difficult to full
Requirement of the pedal system to the electric property and mechanical properties of insulated porcelain sleeve.
Utility model content
The technical problem that the utility model is solved is to provide a kind of variable cross-section insulation porcelain suitable for 500kv transformers
Set, to solve the defect in above-mentioned technical background.
The technical problem that the utility model is solved is realized using following technical scheme：
A kind of variable cross-section insulated porcelain sleeve suitable for 500kv transformers, including the porcelain body with hollow core valve film perforation, this porcelain body
Upper and lower end face is provided with convex rank, and for coordinating bonding agent adhesion flange, and the porcelain body between upper and lower convex rank is three rank variable cross-sections
Structure, rank is up-small and down-big cone cylinder structure thereon, and it is highly 800mm, and the external diameter of cone cylinder diameter upper surface is 160mm, under
The external diameter on surface is 200mm；Scala media is straight tube structure, and it is highly 300mm；And lower rank is up big and down small inversed conical drum knot
Structure, it is highly 640mm, and the external diameter of cone cylinder diameter upper surface is 200mm, and the external diameter of lower surface is 160mm.
In the utility model, spaced big full skirt is provided with the conical surface of upper rank conical cylinder section and lower rank conical cylinder section
And small full skirt, and the cylinder of middle direct tube section is smooth cylinder.
In the utility model, the external diameter of middle direct tube section is than upper rank conical cylinder section lower surface and lower rank conical cylinder section upper surface
Small 20~the 30mm of external diameter, and outer sheath dress in middle direct tube section forms one with the metal of the flange same material reinforcement collar.
In the utility model, a magnet ring is formed on middle direct tube section outer wall, this magnet ring is close to outside middle direct tube section
Wall, and collar parcel is strengthened by metal in outside.
Beneficial effect：Each section of sectional dimension and shape that the utility model passes through reasonable disposition insulated porcelain sleeve, while coordinating
Metal strengthens the collar can effectively improve the mechanical strength of insulated porcelain sleeve, and the variable cross-section of its shaping overcomes pure ceramic material in shaping
Bending resistance destrabilizing moment less defect during cylindrical insulated porcelain sleeve, while pressure-resistant degree is high, its internal pressure failure test load
4.25MPa, 5min, creep age distance are more than 5400mm, with preferably electric property.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the utility model preferred embodiment.
Wherein：1st, top adpting flange；2nd, convex rank；3rd, small full skirt；4th, big full skirt；5th, upper rank conical cylinder section；6th, middle straight tube
Section；7th, magnet ring；8th, metal strengthens the collar；9th, lower rank conical cylinder section；10th, bottom adpting flange.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to a kind of preferred embodiment of variable cross-section insulated porcelain sleeve suitable for 500kv transformers of Fig. 1, in the present embodiment
In, the porcelain body of insulated porcelain sleeve includes the convex rank 2 set on upper and lower end face and the upper rank cone cylinder being molded between upper and lower convex rank
Section 5, middle direct tube section 6 and lower rank conical cylinder section 9.
The lateral surface of the convex rank 2 set on upper and lower end face is distinguished in sandblasting face by blasting treatment by high-strength cement
It is connected with top adpting flange 1 and bottom adpting flange 10, and is molded over the cone of the upper rank between the convex rank of upper and lower end face
Cylinder section 5 and lower rank conical cylinder section 9 are continuous variable cross-section cone cylinder structure, and in upper rank conical cylinder section 5 and lower rank conical cylinder section 9
Spaced big full skirt 4 and small full skirt 3 are provided with the conical surface.
The upper height of rank conical cylinder section 5 is 800mm, up-small and down-big, and the external diameter of its upper surface is 160mm, and the external diameter of lower surface is
200mm；And the lower height of rank conical cylinder section 9 is 640mm, up-small and down-big, a diameter of 200mm of its upper surface, and the diameter of lower surface
It is 160mm；And middle direct tube section 6 is the direct tube section of closing waist, it is highly 300mm, and external diameter is 285mm, and on its outer surface
A magnet ring 7 is formed, this magnet ring 7 is close to the porcelain body outer wall of middle direct tube section 6, and the collar 8 has been strengthened by metal in outside and wrapped
Wrap up in.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model
Claimed scope is by appending claims and its equivalent thereof.
Claims (5)
1. a kind of variable cross-section insulated porcelain sleeve suitable for 500kv transformers, including the porcelain body with hollow core valve film perforation, on this porcelain body,
Lower surface is provided with convex rank, it is characterised in that the porcelain body between the upper and lower convex rank is three rank variable section structures, and rank is thereon
Up-small and down-big cone cylinder structure, it is highly 800mm, and the external diameter of cone cylinder diameter upper surface is 160mm, and the external diameter of lower surface is
200mm；Scala media is straight tube structure, and it is highly 300mm；And lower rank is up big and down small back taper barrel structure, it is highly
640mm, the external diameter of cone cylinder diameter upper surface is 200mm, and the external diameter of lower surface is 160mm.
2. variable cross-section insulated porcelain sleeve according to claim 1, it is characterised in that upper rank conical cylinder section and lower rank conical cylinder section
Spaced big full skirt and small full skirt are provided with the conical surface, and the cylinder of middle direct tube section is smooth cylinder.
3. variable cross-section insulated porcelain sleeve according to claim 1, it is characterised in that the external diameter of middle direct tube section is than upper rank cone cylinder
Section lower surface and the small 20~30mm of lower rank conical cylinder section upper surface external diameter.
4. variable cross-section insulated porcelain sleeve according to claim 3, it is characterised in that the outer sheath of the middle direct tube section is dressed up
Type has one to strengthen the collar with the metal of flange same material.
5. variable cross-section insulated porcelain sleeve according to claim 4, it is characterised in that form on middle direct tube section outer wall
It is close to the magnet ring of middle direct tube section outer wall, and collar parcel is strengthened in this magnet ring outside by metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621344045.1U CN206210497U (en) | 2016-12-04 | 2016-12-04 | A kind of variable cross-section insulated porcelain sleeve suitable for 500kv transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621344045.1U CN206210497U (en) | 2016-12-04 | 2016-12-04 | A kind of variable cross-section insulated porcelain sleeve suitable for 500kv transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206210497U true CN206210497U (en) | 2017-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621344045.1U Active CN206210497U (en) | 2016-12-04 | 2016-12-04 | A kind of variable cross-section insulated porcelain sleeve suitable for 500kv transformers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206210497U (en) |
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2016
- 2016-12-04 CN CN201621344045.1U patent/CN206210497U/en active Active
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