CN1083966A

CN1083966A - Indoor pillar insulator

Info

Publication number: CN1083966A
Application number: CN 92110612
Authority: CN
Inventors: 齐广孝; 盖淑花; 朴善子; 孙连顺
Original assignee: SHUANGYASHAN ELECTRICAL CERAMIC EQUIPMENT FACTORY
Current assignee: SHUANGYASHAN ELECTRICAL CERAMIC EQUIPMENT FACTORY
Priority date: 1992-09-10
Filing date: 1992-09-10
Publication date: 1994-03-16

Abstract

Indoor pillar insulator, it is characterized in that coupling is contained in the blind hole of porcelain spare center up and down, cylindrical and outer bottom and blind hole inner face are cast with adhesive, and a pad is arranged between coupling outer bottom and adhesive, upper junction plate be connected the fixture block recess and cooperate welding fixing.

This invention changes installation dimension and profile physical dimension, can form series of products, is the comparatively ideal device of power station, switch cubicle.

Description

Indoor pillar insulator

This invention belongs to high-tension switch cabinet and High-Voltage Electrical Appliances supporting and bus supporting arrangement;

China is used for the product that the pillar of high-tension switch cabinet is the epoxy resin post insulator type of introduction West Germany's Siemens's electric corporation and the production of Japanese Terasaki Electronic Industries Co., Ltd. at present, it is to adopt the epoxy resin organic material to be made, the compression of this product is 20 kilograms every square millimeter by force, bending strength is every square millimeter of 6-8 kilogram, hot strength is 7.5 kilograms every square millimeter, impact strength is every square centimeter of 10-12 kilogram, Ma Ernan heat distortion temperature 120 degree, 0.3 of water absorption rate branch, insulation breakdown is pressed 40 kilovolts every millimeter, ratio of specific heat coefficient 3.5-4.2 degree, 34 kilovolts of power-frequency voltages 1 minute, lightning impulse power is zero, 190 millimeters of minimum creep distances, reveal lightning and press 2.1 microns of impacts, artificial filthy withstand voltage does not have lightning and presses 6.3 kilovolts, bending failure is loaded 8,000, thereby, this product has mechanical performance, electric property, cold and hot performance is low, rapid heat cycle easily bursts, come off, it is many not to be suitable for big place of flue dust and the big aqueous vapor of mist, moist coastal and high temperature extremely frigid zones uses and height above sea level uses in the area more than 1000 meters.

Purpose of the present invention designs a kind of novel full operating mode indoor post insulator exactly, the creepage distance gadget performance that prior art exists is low to solve, electric property, cold and hot poor performance, be not suitable for the many moist coastal and high temperature of cigarette, the big place of dirt and the big aqueous vapor of mist, extremely frigid zones use, rapid heat cycle easily bursts the deficiency that comes off.

Design of the present invention is, it is by porcelain insulator, coupling up and down, pad, adhesive is formed, porcelain spare is with clay, quartzy, Chang Chang and water are loaded on ball mill, wear into emulsus mud, again through iron removal by magnetic separation, cross 250 mesh sieve removal of impurities, filter-press dehydration is pressed toothed oak slabbing pug, refines into the mud section through vacuum again, the biscuit throwing one-shot forming, enter the hothouse dewatered drying again, take out glazing, promptly can be made into porcelain spare behind people's kiln roast, coupling is contained in the blind hole of porcelain spare center up and down, there is screw at the coupling center up and down, and there is the twice groove in outer garden, and outer garden face and outer bottom are perfused with adhesive between the blind hole inner face, one pad is arranged between coupling outer bottom and adhesive, upper junction plate be connected the fixture block protuberance and cooperate with the connecting plate fabrication hole around the back again that welding forms fixing.

Compared with the prior art the present invention than its advantage is: be every square millimeter and be the 45-55 kilogram owing to designed porcelain spare that ordinary porcelain is a material and porcelain spare contour structures (Fig. 1) compressive strength, bending strength is every square millimeter of 6-10 kilogram, impact strength is every square millimeter of 18-20 kilogram, the Ma Ernanshi heat distortion temperature is zero, water absorption rate is zero, 50 kilovolts every millimeter of breakdown voltages, ratio of specific heat coefficient approximate 6,49 kilovolts of power-frequency voltages 1 minute, positive and negative 75 kilovolts of lightning impulse, 233 millimeters of minimum creep distances, revealing lightning presses the impact micron to puncture a coefficient 4.1, artificial filthy withstand voltage does not have lightning and presses 11.5 kilovolts, 2000 kilograms of bending failure loads, thereby mechanical performance, electric property and cold and hot performance all are higher than prior art, chilling, anxious heat does not burst and comes off, and can be applicable to cigarette, the many moist coastal and high temperature of big place of dirt and the big aqueous vapor of mist, extremely frigid zones and the area use below 3000 meters above sea level.

Description of drawings:

Fig. 1 is the indoor pillar insulator installation diagram, and Fig. 2 is that the indoor pillar porcelain insulator is at left view

Fig. 3, Fig. 4, Fig. 5 for a change the indoor pillar insulator installation diagram of external form physical dimension

Fig. 6 has left view for Fig. 5,1 upper junction plate wherein, 2, pad, 3, on connect fixture block, 4, pad, 5, porcelain insulator, 6, annex down, 7, groove, 8, adhesive 9, screw 10, technology be with unthreaded hole 11, connection unthreaded hole.

The utility model most preferred embodiment is: it is by porcelain insulator, and coupling, pad, adhesive are formed up and down.Clay and the water ball mill grinding machine emulsus mud of packing into, again through iron removal by magnetic separation, 250 mesh sieve removal of impurities, filter-press dehydration is pressed toothed oak slabbing pug, refine into the mud section through vacuum pugmill again, the biscuit throwing one-shot forming, enter the hothouse dewatered drying again, at this moment moisture content is controlled at percent 0.8, takes out glazing, promptly can be made into porcelain spare behind people's kiln roast, the profile geometry is Fig. 1, Fig. 3, Fig. 4, Fig. 5 shape.Contain clay percent 55 in the blank, quartzy percent 20, feldspar percent 25.Contain feldspar percent 30 in the glaze, clay percent 20, talcum percent 7, porcelain powder percent 10, quartzy 28.7 percent lime stone percent 5, coupling (3) (6) is contained in the blind hole of porcelain spare (5) center up and down, there is screw (9) at coupling (6) center, there is twice groove (7) in outer garden, outer garden and outer bottom and blind hole inner face glue are marked with adhesive (8), between coupling (3) (6) outer bottom and adhesive (8) pad (4) is arranged, connecting plate (1) cooperates welding fixing with coupling (3) recess, a pad (2) is arranged between flange (1) and porcelain spare end, adhesive (8) is No. 600 cement, pad (4) material is a felt paper, and this is invented as Fig. 1, Fig. 3, Fig. 4 Fig. 5 changes installation dimension and profile physical dimension, can be made into series of products.

Claims

1, indoor pillar insulator, by porcelain spare, coupling, pad, adhesive are formed up and down, it is characterized in that: coupling is contained in the blind hole of porcelain spare center up and down, outer garden and outer bottom and blind hole inner face are perfused with adhesive, one pad is arranged between coupling outer bottom and adhesive, and upper junction plate connects recessed portion of fixture block and cooperates welding fixing;

2, indoor pillar insulator according to claim 1 is characterized in that, contains clay percent 55-58 in the blank, quartzy percent 20-27, feldspar percent 15-25.

3, indoor pillar insulator according to claim 1 is characterized in that: contain feldspar percent 30 in the glaze, and quartzy percent 28, lime stone percent 5, clay percent 20, talcum percent 7, porcelain powder percent 10;

4, indoor pillar insulator according to claim 1 is characterized in that, hothouse dewatered drying moisture content is controlled at percent 0.8, roast temperature 1240 degree Celsius.