CN103413657A - Low-voltage lead sealing structure of underground transformer - Google Patents
Low-voltage lead sealing structure of underground transformer Download PDFInfo
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- CN103413657A CN103413657A CN2013103717168A CN201310371716A CN103413657A CN 103413657 A CN103413657 A CN 103413657A CN 2013103717168 A CN2013103717168 A CN 2013103717168A CN 201310371716 A CN201310371716 A CN 201310371716A CN 103413657 A CN103413657 A CN 103413657A
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- sealing
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- voltage lead
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- transformer
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- 238000007789 sealing Methods 0.000 title claims abstract description 55
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The invention discloses a low-voltage lead sealing structure of an underground transformer. The sealing structure comprises a box edge, a sealing hood, a sealing cover, a sealing base, a pressing bowl and compression nuts, wherein the sealing hood is arranged on a box cover of the transformer; the box edge with a sealing groove is fixed at the upper opening of the sealing hood; a sealing pad is arranged in the sealing groove; the sealing cover is in sealed connection with the sealing hood through the box edge; the sealing base is arranged at the place where the low-voltage lead of the transformer locates, and the low-voltage lead of the transformer stretches out of the sealing base; the sealing base is arranged on the sealing hood; a sealing ring is sleeved on the low-voltage lead of the transformer and is located in the sealing base; the pressing bowl is tightly pressed on the sealing ring and is fixed by the compression nuts. The low-voltage lead sealing structure of the underground transformer is safe and reliable, has good sealing effects, and is capable of satisfying the waterproof and sealing demands on the low-voltage part of the underground transformer.
Description
Technical field
The invention belongs to transformer manufacture technology, relate to a kind of oil immersion underground transformer, specifically a kind of underground transformer low-voltage lead hermetically-sealed construction.
Background technology
In recent years, the urbanization process of China is just at high speed development, the urban renewal of various places is after experience old city removal, road widening, building facade renewal and reform, implementing on a large scale urban afforestation, making somebody a mere figurehead into power supply and lighting engineerings such as ground again, be intended to improve streetscape city looks, build harmonious city good for habitation.At present, the construction of urban planning, communal facility is more and more higher to the requirement of power equipment, in developed countries such as America and Europes, according to the Urban ecological design theory, progressively transformer is imbedded to underground installation, underground transformer is exactly a kind of new power equipment for the requirement design and development that meets above-mentioned field.This product requirement adopts some new technology and processes at aspects such as waterproof, sealing, insulation, anticorrosion, shockproof, heat radiations; require not only can in urban power distribution network, not add protection and be directly installed on underground operation; also can be immersed in water and move within a certain period of time; also can add as required the protection melt pit and give installation and operation, be power transformer product of new generation.
Summary of the invention
The purpose of this invention is to provide a kind of underground transformer low-voltage lead hermetically-sealed construction, the sealing structural safety is reliable, good sealing effect, the demand of following formula transformer low voltage part waterproof, sealing contentedly.
The objective of the invention is to be achieved through the following technical solutions:
A kind of underground transformer low-voltage lead hermetically-sealed construction, it is characterized in that: the sealing structure comprises case edge, seal closure, seal cover, seal receptacle, pressure bowl and clamp nut, described seal closure is arranged on transformer tank and covers, case with seal groove is suitable for reading along being fixed on seal closure, in seal groove, be provided with sealing gasket, seal cover is tightly connected with seal closure by the case edge; Place is provided with seal receptacle at transformer low-voltage lead, and transformer low-voltage lead reaches outside seal receptacle, and seal receptacle is arranged on seal closure, and ring set is on transformer low-voltage lead and be positioned at seal receptacle; Pressing bowl to be pressed on sealing ring and by clamp nut fixes.
In the present invention, press the seal face of bowl to be provided with the groove coordinated with the sealing ring end face.Seal closure is welded in transformer tank and covers, and case is suitable for reading along being welded in seal closure.Seal cover closely is connected with the case edge by hold-down bolt.
The present invention mainly prevents the top water inlet by case along sealing, and low-voltage lead seals and prevents the sidepiece water inlet and realize, structural safety is reliable, good sealing effect, the demand of following formula transformer low voltage part waterproof, sealing contentedly.
The accompanying drawing explanation
Fig. 1 is that case of the present invention is along sealed structural representation.
Fig. 2 is low-voltage lead sealed structural representation of the present invention.
Fig. 3 is the structural representation on raising middle flask of the present invention edge.
Embodiment
A kind of underground transformer low-voltage lead hermetically-sealed construction, Fig. 1 are that case of the present invention is along sealed structural representation.Fig. 2 is low-voltage lead sealed structural representation of the present invention.Fig. 3 is the structural representation on raising middle flask of the present invention edge.The sealing structure comprise case along 1, seal closure 2, seal cover 3, seal receptacle 4, press bowl 5 and clamp nut 6, seal closure is welded on transformer box cover 7, case with seal groove 11 is suitable for reading along being welded in seal closure, in seal groove, is provided with sealing gasket 12, and seal cover is tightly connected with seal closure by the case edge; Seal cover closely is connected with the case edge by hold-down bolt 9.8 places are provided with seal receptacle 4 at transformer low-voltage lead, and transformer low-voltage lead reaches outside seal receptacle, and seal receptacle is arranged on seal closure, and sealing ring 41 is sleeved on transformer low-voltage lead and is positioned at seal receptacle; Pressing bowl to be pressed on sealing ring and by clamp nut fixes.In Fig. 1, the 10th, the low-pressure line-outgoing head.
Case is along processing one road sealing groove 11, and during installation, seal groove is embedded in a sealing gasket, adds seal cover and seals upper port by hold-down bolt.Sealing surface is smooth, the sealing gasket consolidation, and thrust is even, and assembling reliably just can realize the requirement of top waterproof, sealing.
Seal receptacle is welded in the seal closure side.When lead-in wire is installed, at first low-voltage cable reliably is connected with low pressure, guarantees contact resistance, then sealing ring is enclosed within on low-voltage cable, the pressurization bowl, then screw in the clamp nut compacting.Press the bowl seal face to be processed into groove, radius coordinates with the sealing ring end face, while pressing bowl toward inboard, advanced by the fastening force of clamp nut, groove surface is shared power on sealing ring equably, sealing ring is shunk, the part that expands is gradually tight by low-voltage cable and the filling of seal closure gap, thereby reaches the effect of lead-in wire position waterproof, sealing; Avoid simultaneously clamp nut directly to contact with sealing ring, during the nut rotation, can damage the phenomenon of sealing gasket.
Claims (4)
1. underground transformer low-voltage lead hermetically-sealed construction, it is characterized in that: the sealing structure comprises that case is along (1), seal closure (2), seal cover (3), seal receptacle (4), pressure bowl (5) and a clamp nut (6), described seal closure (2) is arranged on transformer box cover (7), with the case of seal groove (11), be fixed on seal closure (2) along (1) suitable for reading, in seal groove (11), be provided with sealing gasket (12), seal cover (3) is tightly connected along (1) and seal closure (2) by case; At transformer low-voltage lead (8), locate to be provided with seal receptacle (4), and transformer low-voltage lead (8) reaches outside seal receptacle (4), it is upper that seal receptacle (4) is arranged on seal closure (2), and sealing ring (41) is sleeved on transformer low-voltage lead (8) and goes up and be positioned at seal receptacle (4); Pressing bowl (5) to be pressed on sealing ring (41) goes up and passes through clamp nut (6) and fix.
2. underground transformer low-voltage lead hermetically-sealed construction according to claim 1, is characterized in that: press the seal face of bowl (5) to be provided with the groove coordinated with sealing ring (41) end face.
3. underground transformer low-voltage lead hermetically-sealed construction according to claim 1 is characterized in that: it is upper that seal closure (2) is welded in transformer box cover (7), and it is suitable for reading that case is welded in seal closure (2) along (1).
4. underground transformer low-voltage lead hermetically-sealed construction according to claim 1 is characterized in that: seal cover (3) is connected with case edge (1) by hold-down bolt (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310371716.8A CN103413657B (en) | 2013-08-23 | 2013-08-23 | Underground transformer low-voltage lead hermetically-sealed construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310371716.8A CN103413657B (en) | 2013-08-23 | 2013-08-23 | Underground transformer low-voltage lead hermetically-sealed construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103413657A true CN103413657A (en) | 2013-11-27 |
| CN103413657B CN103413657B (en) | 2015-10-07 |
Family
ID=49606658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310371716.8A Active CN103413657B (en) | 2013-08-23 | 2013-08-23 | Underground transformer low-voltage lead hermetically-sealed construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103413657B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745811A (en) * | 2013-12-31 | 2014-04-23 | 沪光集团(安徽)电气有限公司 | Transformer lead seal joint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080043958A (en) * | 2006-11-15 | 2008-05-20 | 풍산전기 주식회사 | Subterranean transformer |
| CN201408625Y (en) * | 2009-04-17 | 2010-02-17 | 杭州钱江电气集团股份有限公司 | Sealing socket for buried transformer |
| CN102568781A (en) * | 2012-03-09 | 2012-07-11 | 北京芳远新合电器技术有限公司 | Transformer low-voltage side outgoing line-leading device |
| CN102005714B (en) * | 2010-10-22 | 2012-07-25 | 江苏天力电气有限公司 | Cable sealing device for buried transformer |
| CN203397864U (en) * | 2013-08-23 | 2014-01-15 | 镇江天力变压器有限公司 | Underground transformer low-voltage lead sealing structure |
-
2013
- 2013-08-23 CN CN201310371716.8A patent/CN103413657B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080043958A (en) * | 2006-11-15 | 2008-05-20 | 풍산전기 주식회사 | Subterranean transformer |
| CN201408625Y (en) * | 2009-04-17 | 2010-02-17 | 杭州钱江电气集团股份有限公司 | Sealing socket for buried transformer |
| CN102005714B (en) * | 2010-10-22 | 2012-07-25 | 江苏天力电气有限公司 | Cable sealing device for buried transformer |
| CN102568781A (en) * | 2012-03-09 | 2012-07-11 | 北京芳远新合电器技术有限公司 | Transformer low-voltage side outgoing line-leading device |
| CN203397864U (en) * | 2013-08-23 | 2014-01-15 | 镇江天力变压器有限公司 | Underground transformer low-voltage lead sealing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745811A (en) * | 2013-12-31 | 2014-04-23 | 沪光集团(安徽)电气有限公司 | Transformer lead seal joint |
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| Publication number | Publication date |
|---|---|
| CN103413657B (en) | 2015-10-07 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Sealing structure of low-voltage leads in underground transformers Granted publication date: 20151007 Pledgee: Jiangsu Jurong Rural Commercial Bank Co.,Ltd. Pledgor: ZHENJIANG TIANLI TRANSFORMER Ltd.,Corp. Registration number: Y2024980009972 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |