CN209357586U - A kind of novel oil-immersed transformer casing - Google Patents
A kind of novel oil-immersed transformer casing Download PDFInfo
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- CN209357586U CN209357586U CN201822242801.5U CN201822242801U CN209357586U CN 209357586 U CN209357586 U CN 209357586U CN 201822242801 U CN201822242801 U CN 201822242801U CN 209357586 U CN209357586 U CN 209357586U
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- seal gasket
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- clamping cap
- conducting rod
- bronze medal
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Abstract
The utility model provides a kind of novel oil-immersed transformer casing, including conductive component, insulation assembly and hold down assembly, during conductive component is arranged in insulation assembly and holds down assembly, it holds down assembly and is fixedly installed at the upper and lower end faces of insulation assembly, it holds down assembly including clamp nut, upper compression bronze medal, lower compression bronze medal, clamping cap, sealing glueballs and seal gasket, clamping cap is set as aluminum clamping cap, and sealant ball center offers through-hole.Original clamping cap is changed into aluminum gland by the bushing shell for transformer in the utility model, to substantially increase the axial compression strength of gland, while aluminum gland is less prone to breakage during transportation and in the maintenance process in later period.Corresponding reduction has been carried out to the size of sealing glueballs and seal gasket simultaneously, so that sealing the exposed reduction of glueballs and seal gasket after installation, the aging speed for slowing down sealing glueballs and seal gasket, ensure that seal gasket to the leakproofness of box house oil liquid.
Description
Technical field
The utility model relates to the electrical connection equipment field of transformation device more particularly to a kind of novel oil-immersed transformers
Casing.
Background technique
Bushing shell for transformer is the outgoing line device outside the high and low pressure lead to fuel tank of inside transformer, has defined electricity
Gas intensity and enough mechanical strengths.With the coil of casing connection, voltage class determines the insulation system of casing, casing
The sectional area of conductor part and the structure of connector lug are determined using electric current, this is the use structure of traditional casing,
Operating specification is formulated from the Shen Bian research institute seventies, is used till today always.
But traditional casing has problems to need to solve, the gland material such as used is porcelain, porcelain gland
Cracky during transportation and in the maintenance in later period；And axial compression strength is smaller due to the needs when carrying out fastening installation
Clamp nut is screwed to be that clamping cap pushes glue bead realization sealing, crack, glue bead and glue are easy to appear when pressing force is too big
The setting of the size of pad lacks the considerations of to glue bead compressed shape variable itself, but glue bead, rubber mat itself meeting after installation compresses
There is compression deformation, cause size bigger than normal after compressive deformation, so that glue bead and rubber mat is naked is exposed on the external in environment excessive, causes to grow
Phase is accelerated the aging of glue bead rubber mat by ultraviolet light and strong illumination, reduces rubber mat to the leakproofness and change of box house oil liquid
The service life of depressor pipe sleeve.
Summary of the invention
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of novel oil-immersed transformer set
Pipe, wherein a kind of novel oil-immersed transformer casing includes conductive component, insulation assembly and holds down assembly, described to lead
During electrical component is arranged in insulation assembly and holds down assembly, described hold down assembly is fixedly installed on the upper and lower end faces of insulation assembly
Place, it is described to hold down assembly including clamp nut, upper compression bronze medal, lower compression bronze medal, clamping cap, sealing glueballs and sealant
Pad, the clamping cap are set as aluminum clamping cap, and the sealant ball center offers through-hole, outside the sphere of the sealing glueballs
Diameter is 48cm, and the through-hole diameter is 30cm, and the height of the sealing glueballs is 20cm, and the seal gasket is cyclic annular rubber mat,
The outer annular diameter of the seal gasket is 82cm, and the annular diameters of the seal gasket are 55cm, the height of the seal gasket
For 6cm.
Further, the conductive component includes conducting rod and two groups of end connection components, end connection group described in two groups
Part is fixedly installed on the upper and lower side of conducting rod.
Further, the insulation assembly includes upper insulated porcelain sleeve and lower insulated porcelain sleeve, the upper insulated porcelain sleeve and it is lower absolutely
Edge insulator is sheathed on conducting rod, and the upper insulated porcelain sleeve is set as insulated porcelain sleeve on umbrella revolving body.
Further, the clamp nut rotation is set on conducting rod, and the upper compression bronze medal is pressed by the way that clamp nut is fixed
Set on clamping cap upper end surface, the lower compression bronze medal is fixedly welded on conducting rod, and the lower compression bronze medal pressure is set on lower exhausted
At edge insulator bottom end face, insulation paper washer, the sealant ball cover are folded between the lower insulated porcelain sleeve and lower compression bronze medal
On conducting rod, and the sealant ball chuck is set between clamping cap and upper insulated porcelain sleeve, and the seal gasket is sheathed on absolutely
The column part of edge insulator.
Further, the connector assembly includes two groups of binding nuts and two groups of gaskets, and the rotation of binding nut described in two groups is set
In on conducting rod, gasket described in two groups is sheathed on conducting rod, and two groups of gaskets are located between two groups of binding nuts.
Further, the connector assembly is sleeve, offers multiple groups mounting hole on the sleeve.
Further, the compression cap surface carries out plastic-spraying processing.
The utility model has the advantages and positive effects of: bushing shell for transformer in the utility model is by original clamping cap
Aluminum gland is changed into, so that the compression strength of gland is substantially increased, so bigger torsion can be used when installing and tightening
Power goes to tighten clamp nut, so that compressing sealing glueballs obtains better seal effect, while aluminum gland is during transportation
And breakage is less prone in the maintenance process in later period.
Corresponding reduction has been carried out to the size of sealing glueballs and seal gasket in the utility model simultaneously, has been fully taken into account
Influence of the compressed shape variable to size after sealing glueballs and seal gasket installation, so that sealing glueballs and sealing after installation
The exposed reduction of rubber mat slows down the aging speed of sealing glueballs and seal gasket, ensure that seal gasket to box house oil
The leakproofness of liquid.
Detailed description of the invention
Fig. 1 is the overall structure half-section diagram of embodiment one in the utility model.
Fig. 2 is the overall structure half-section diagram of embodiment two in the utility model.
Fig. 3 is the size cut-away view for sealing glueballs.
Fig. 4 is the size cut-away view of seal gasket.
In figure: conductive component 10, conducting rod 101, binding nut 102, gasket 103, sleeve 104, mounting hole 105, on
Bronze medal 20 is compressed, clamping cap 21 seals glueballs 22, seal gasket 23, lower compression bronze medal 24, clamp nut 25, upper insulated porcelain sleeve
30, lower insulated porcelain sleeve 31, insulate paper washer 40, cabinet 50.
Specific embodiment
In order to better understand the utility model, the utility model is carried out into one with attached drawing combined with specific embodiments below
The description of step.
Embodiment one
Shown in as shown in Figure 1, Figure 3 and Figure 4, a kind of novel oil-immersed transformer casing include conductive component 10, insulation assembly with
And hold down assembly, conducting rod 101 holds down assembly and is fixed in the upper of insulation assembly in being arranged in insulation assembly and holding down assembly
Lower two end faces hold down assembly including clamp nut 25, upper compression bronze medal 20, lower compression bronze medal 24, clamping cap 21, sealing glueballs
22 and seal gasket 23, clamping cap 21 is set as aluminum clamping cap 21, and sealing 22 center of glueballs offers through-hole, which uses
In wearing conducting rod 101, the sphere outer diameter of sealing glueballs 22 is 48cm, through-hole diameter 30cm, and the height of sealing glueballs 22 is
20cm, seal gasket 23 are cyclic annular rubber mat, and the outer annular diameter of seal gasket 23 is 82cm, and the annular diameters of seal gasket 23 are
55cm, the height of seal gasket 23 are 6cm.Bushing shell for transformer in the utility model is 630KVA transformer low voltage casing (BF-
1KV/1000A) its glue bead full size is 50*30*24, and rubber mat full size is 85*55*6, but since size lacks to after installation
Compressed shape variable the considerations of make seal gasket 23 and sealing glueballs 22 it is exposed more, aging speed is very fast, and service life is short,
Existing improved size, can reduce exposed, prolong the service life.
Conductive component 10 includes conducting rod 101 and two groups of end connection components, and two groups of end connection components are fixedly installed on
The upper and lower side of conducting rod 101.Conductive component 10 is used for the outgoing line device outside the high and low pressure lead to fuel tank of inside transformer
In.
Insulation assembly includes upper insulated porcelain sleeve 30 and lower insulated porcelain sleeve 31, and upper insulated porcelain sleeve 30 and lower insulated porcelain sleeve 31 cover
Insulated porcelain sleeve 30 is set as insulated porcelain sleeve 30 on umbrella revolving body on conducting rod 101, and on this.Upper insulated porcelain sleeve 30 is under
Insulated porcelain sleeve 31 insulate to conducting rod 101 by being set on conducting rod 101
Clamp nut 25 on the upper threaded portion for compressing bronze medal 20 by being screwed in 101 upper end of conducting rod sets to fix pressure
In 21 upper end surface of clamping cap, lower compression bronze medal 24 is fixedly welded on conducting rod 101, and should by screw clamp nut 25 come
Lower compression bronze medal 24 is tensed by conducting rod 101, so that it is set to the lower pressure of compression bronze medal 24 at lower 31 bottom end face of insulated porcelain sleeve,
And insulation paper washer 40 is folded between lower insulated porcelain sleeve 31 and lower compression bronze medal 24, between lower insulated porcelain sleeve 31 and cabinet 50
Also be folded with insulation paper washer 40, sealing glueballs 22 be sheathed on conducting rod 101, and the sealing glueballs 22 be located in clamping cap 21 with
Between upper insulated porcelain sleeve 30, sealing glueballs 22 is used for clamping cap 21 and upper insulated porcelain sleeve 30 phase with conducting rod 101 during installation
Determination to position, and can guarantee that clamping cap 21 is mounted on leakproofness later on upper insulated porcelain sleeve 30, seal gasket in compression
23 are sheathed on the column part of insulated porcelain sleeve 30.This seal gasket 23 is pressed in upper 30 He of insulated porcelain sleeve after installation fastening
For sealing between cabinet 50, prevent the oil liquid in cabinet 50 from outflowing.
Connector assembly is divided into two groups, and rotation is set to the threaded portion of the upper and lower ends of conducting rod 101, every group of connector assembly respectively
Including two groups of binding nuts 102 and two groups of gaskets 103, two groups of rotations of binding nuts 102 are set to the threaded portion of conducting rod 101, and two
Group gasket 103 is sheathed on conducting rod 101, and two groups of gaskets 103 are located between two groups of binding nuts 102.This form connects
Line component is used for the wiring of low current casing.
21 surface of clamping cap carries out plastic-spraying processing, and the quality by plastic-spraying treated surface is preferable, and appearance is more beautiful.
The detection mode of the compression strength of clamping cap 21: testing the pressing force of clamping cap 21 by clamp nut 25,
It screws clamp nut 25 to press until damage occurs in clamping cap 21 clamping cap 21 by using torque spanner, then remembers
The torque value for recording torque spanner, passes through torque value size secondary indication compression strength.By to multiple groups aluminum clamping cap and original
Porcelain clamping cap carry out the test of axial compression strength, experimental data is as shown in the table:
It is greatly improved according to the axial compression strength of the improved aluminum gland of the above experimental data, aluminium
The axial compression strength of gland processed can be basically stable at 3150N*m or so, and original porcelain gland only has 1500N*m,
The specific work process of the utility model is as follows: staff will successively insulate paper washer according to sequencing first
40, lower insulator and insulation paper washer 40 are set on conducting rod 101, and underlying insulation paper washer 40 is made to be pressed on lower insulation porcelain
It is then whole by being pierced by inside cabinet 50 by what is worn again between set 31 and lower compression bronze medal 24, while to be located at top
Insulation paper washer 40 be clamped between 50 inner surface of cabinet and lower insulated porcelain sleeve 30, then by seal gasket 23, upper insulation
Insulator 30, sealing glueballs 22, clamping cap 21 and upper compression bronze medal 20 are successively set on outside cabinet 50 according to sequencing
On conducting rod 101；
It is screwed in followed by by clamp nut 25 by the upper end for being located at the conducting rod 101 in 50 outside of cabinet, passes through clamp nut
25 screw-in gradually downward, so that clamp nut 25 constantly applies pressure to upper compression bronze medal 20, then upper compression bronze medal 20 is right
Clamping cap 21 applies pressure, and pressure successively transmits downwards the outer surface until cabinet 50, thus by clamping cap 21, sealing glueballs
22, upper insulated porcelain sleeve 30 and seal gasket 23 are pressed on cabinet 50, due to conductive while being screwed down clamp nut 25
The meeting relative upward movement of bar 101, since lower compression bronze medal 24 is weldingly fixed on conducting rod 101, so insulation paper washer 40 is under
Insulated porcelain sleeve 31 can be pressed in the inner surface of cabinet 50.Finally corresponding lead is connect tightly at connector assembly, is then revolved
Whole installation connection can be completed in tight binding nut 102.
Embodiment two
As shown in Fig. 2, the present embodiment two and the difference of embodiment one be only that the structure type of connector assembly it is different with
And the difference of the type of attachment of conductive component 10 and conducting rod 101, the connector assembly in the present embodiment are set as sleeve 104,
Multiple groups mounting hole 105 is offered on sleeve 104, and sleeve 104 is set in the both ends of conducting rod 101, then by multiple groups
It screws in bolt in mounting hole 105 sleeve 104 is fixed on conducting rod 101.This connector assembly is more applicable for high current set
Wiring in pipe.
The embodiments of the present invention are described in detail above, but content is only the preferable implementation of the utility model
Example, should not be considered as limiting the scope of the present invention.It is all according to equivalent change made by the scope of the utility model with
Improve etc., it shall still fall within the scope of this patent.
Claims (6)
1. a kind of novel oil-immersed transformer casing, it is characterised in that: a kind of novel oil-immersed transformer casing includes leading
It electrical component (10), insulation assembly and holds down assembly, during the conductive component (10) is arranged in insulation assembly and holds down assembly, institute
It states to hold down assembly and be fixedly installed at the upper and lower end faces of insulation assembly, it is described to hold down assembly including clamp nut (25), upper pressure
Tight bronze medal (20), lower compression bronze medal (24), clamping cap (21), sealing glueballs (22) and seal gasket (23), the clamping cap
(21) it is set as aluminum clamping cap (21), sealing glueballs (22) center offers through-hole, the ball of sealing glueballs (22)
External diameter is 48cm, and the through-hole diameter is 30cm, and the height of sealing glueballs (22) is 20cm, the seal gasket (23)
For cyclic annular rubber mat, the outer annular diameter of the seal gasket (23) is 82cm, and the annular diameters of the seal gasket (23) are 55cm,
The height of the seal gasket (23) is 6cm, and the conductive component (10) includes conducting rod (101) and two groups of end connection groups
Part, end connection component described in two groups are fixedly installed on the upper and lower side of conducting rod (101).
2. a kind of novel oil-immersed transformer casing according to claim 1, it is characterised in that: the insulation assembly includes
Upper insulated porcelain sleeve (30) and lower insulated porcelain sleeve (31), the upper insulated porcelain sleeve (30) and lower insulated porcelain sleeve (31) are sheathed on conduction
On bar (101), and the upper insulated porcelain sleeve (30) is set as insulated porcelain sleeve (30) on umbrella revolving body.
3. a kind of novel oil-immersed transformer casing according to claim 2, it is characterised in that: the clamp nut (25)
Rotation is set on conducting rod (101), and the upper compression bronze medal (20) is set on clamping cap (21) by clamp nut (25) fixed pressure
Endface, the lower compression bronze medal (24) are fixedly welded on conducting rod (101), and lower compression bronze medal (24) pressure is set on lower exhausted
At edge insulator (31) bottom end face, insulation paper washer is folded between the lower insulated porcelain sleeve (31) and lower compression bronze medal (24)
(40), the sealing glueballs (22) is sheathed on conducting rod (101), and the sealing glueballs (22) be located in clamping cap (21) with it is upper
Between insulated porcelain sleeve (30), the seal gasket (23) is sheathed on the column part of insulated porcelain sleeve (30).
4. a kind of novel oil-immersed transformer casing according to claim 1, it is characterised in that: the end connection component
Including two groups of binding nuts (102) and two groups of gaskets (103), binding nut described in two groups (102) rotation is set to conducting rod (101)
On, gasket described in two groups (103) is sheathed on conducting rod (101), and two groups of gaskets (103) are located at two groups of binding nuts
(102) between.
5. a kind of novel oil-immersed transformer casing according to claim 1, it is characterised in that: the end connection component
For sleeve (104), multiple groups mounting hole (105) are offered on the sleeve (104).
6. a kind of novel oil-immersed transformer casing according to claim 1, it is characterised in that: clamping cap (21) table
Face carries out plastic-spraying processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822242801.5U CN209357586U (en) | 2018-12-28 | 2018-12-28 | A kind of novel oil-immersed transformer casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822242801.5U CN209357586U (en) | 2018-12-28 | 2018-12-28 | A kind of novel oil-immersed transformer casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209357586U true CN209357586U (en) | 2019-09-06 |
Family
ID=67801397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822242801.5U Active CN209357586U (en) | 2018-12-28 | 2018-12-28 | A kind of novel oil-immersed transformer casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209357586U (en) |
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2018
- 2018-12-28 CN CN201822242801.5U patent/CN209357586U/en active Active
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