CN201302873Y - Porcelain bushing for base in lightning protector - Google Patents

Abstract

The utility model relates to a porcelain bushing for a base in a 500KV lightning protector, which comprises a porcelain body and ring flanges arranged at two ends thereof. The porcelain bushing is characterized in that the porcelain body is an integral part made of high alumina material; the ring flanges at two ends of the porcelain body are made of high-intensity aluminum casting alloy or hot dipping ductile iron; the porcelain body and the ring flanges are bonded through Portland cement adhesive larger than or equal to No.500; the porcelain body adopts a shape that an umbrella leave structure is arranged at the outer middle part, and a hollow cylinder is arranged at the inner middle part; the ring flanges are squares with the height of 160mm, the end surface protrusion thickness of 25mm, and an edge length of 404mm; four 26mm screw holes are formed at four corners at the end surface of the ring flanges and the distance between the screw holes and the center of the ring flanges is 145mm. The porcelain bushing can satisfy the requirement of the high voltage grade as 500KV, and has the advantages of convenient installation, high stability, compact integral structure and excellent insulation effect.

Description

Porcelain bushing for lightning protector base

Technical field

Technical field under the utility model relates to a kind of electrical materials and appliances, specifically relates to the porcelain bushing for lightning protector base of a kind of 500KV of applying to.

Background technology

At present, relating to the porcelain bushing for lightning protector base that applies to the such voltage levels of 500KV mostly is to adopt organic (or inorganic) adhered, such porcelain bushing for lightning protector base exists such shortcoming: bad mechanical property, bending strength is low, bonding position easy fracture, thereby influence the electric property of product, can not effectively satisfy specification requirement and instructions for use, also have the structure of design and off size reason in addition and influence the problem of properties of product product.

Summary of the invention

Technical problem to be solved in the utility model provides the integral type porcelain bushing for lightning protector base of a kind of 500KV of satisfying high voltage requirement.

Technical solution adopted in the utility model is: porcelain bushing for lightning protector base: the ring flange that comprises porcelain body and porcelain body two ends, it is characterized in that: porcelain body is whole one, described porcelain body is a high alumina refractories, and the ring flange at described porcelain body two ends is that size is identical with structure; Ring flange is the ring flange with spheroidal graphite cast-iron of high strength cast aluminium alloy or hot galvanizing; Porcelain body is connected with being not less than 500# portland cement adhesive mucilage binding with ring flange, and the length of whole porcelain bushing for lightning protector base is 417～427mm; Described porcelain body profile is: have the structure of a umbrella leaf, the cylinder that bosom has hollow parts in the middle of outside; Described ring flange height is 160mm, and the ring flange end face protrudes for thick 25mm, the length of side are the square of 404mm, and at four jiaos of screws that 4 26mm are arranged of end face of ring flange, screw is 145mm apart from the center of ring flange.

Because the utility model has been taked above structure, make needs that just can satisfy the such voltage levels of 500KV of such porcelain bushing for lightning protector base, and have conveniently install, stability is strong, overall structure is rigorous, the characteristics of external insulation electric property and good mechanical property.

Description of drawings

Fig. 1 is the structural representation of the utility model porcelain bushing for lightning protector base

Fig. 2 is the schematic diagram of half part of end face structure of ring flange

Wherein, 1, porcelain body 2, ring flange 3, umbrella leaf 4, hollow parts 5, protrusion 6, screw hole

The length of H-porcelain bushing for lightning protector base

h ₁The height of-ring flange

It is thick that D---ring flange end face protrudes

d ₁--the length of side that-ring flange end face protrudes

d ₂---screw is apart from the distance at the center of ring flange

Embodiment

The utility model will be further described below in conjunction with accompanying drawing.

As shown in Figure 1, porcelain bushing for lightning protector base: comprise the ring flange 2 at porcelain body 1 and porcelain body two ends, it is characterized in that: porcelain body 1 is whole one, and described porcelain body 1 is a high alumina refractories, and the ring flange 2 at described porcelain body 1 two ends is that size is identical with structure; Ring flange 2 is the ring flanges with spheroidal graphite cast-iron of high strength cast aluminium alloy or hot galvanizing; Porcelain body 1 is not less than 500# portland cement adhesive mucilage binding with ring flange 2 usefulness and is connected, and the long H of whole porcelain bushing for lightning protector base is 417～427mm; Described porcelain body 1 profile is: the structure, the bosom that have a umbrella leaf 3 in the middle of outside have the cylinder of hollow parts 4; Described ring flange 2 high h ₁Be 160mm, ring flange end face extrude depth D is 25mm, length of side d ₁Be the square of 404mm, at four jiaos of screws that 4 26mm are arranged of end face of ring flange, screw is apart from the center d of ring flange ₂Be 145mm.

Such porcelain bushing for lightning protector base has excellent mechanical intensity, the hydraulic pressure breakdown strength is high and good electric property, and umbellate form adopts open umbrella structure, and anti-pollution characteristic is good, the gradation for surface pollution height; Insulator bending failure load is not less than 60KN.m, can reach high pressure resistant, dustproof better effects, can be widely used in industries such as mine, electric power, metallurgy, railway.

Claims (3)

1, porcelain bushing for lightning protector base: comprise the ring flange at porcelain body and porcelain body two ends, it is characterized in that: porcelain body is whole one, and described porcelain body is a high alumina refractories, and the ring flange at described porcelain body two ends is that size is identical with structure; Ring flange is the ring flange with spheroidal graphite cast-iron of high strength cast aluminium alloy or hot galvanizing; Porcelain body is connected with being not less than 500# portland cement adhesive mucilage binding with ring flange, and the length of whole porcelain bushing for lightning protector base is 417～427mm.

2, porcelain bushing for lightning protector base according to claim 1 is characterized in that: described porcelain body profile is: have the structure of a umbrella leaf, the cylinder that bosom has hollow parts in the middle of outside.

3, porcelain bushing for lightning protector base according to claim 1, it is characterized in that: described ring flange height is 160mm, the ring flange end face protrudes for thick 25mm, the length of side are the square of 404mm, and at four jiaos of screws that 4 26mm are arranged of end face of ring flange, screw is 145mm apart from the center of ring flange.

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