CN103413657B - Underground transformer low-voltage lead hermetically-sealed construction - Google Patents
Underground transformer low-voltage lead hermetically-sealed construction Download PDFInfo
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- CN103413657B CN103413657B CN201310371716.8A CN201310371716A CN103413657B CN 103413657 B CN103413657 B CN 103413657B CN 201310371716 A CN201310371716 A CN 201310371716A CN 103413657 B CN103413657 B CN 103413657B
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- seal
- voltage lead
- transformer low
- sealing
- seal closure
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- 238000010276 construction Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 238000005516 engineering process Methods 0.000 description 5
- 241000168254 Siro Species 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009987 spinning 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a kind of underground transformer low-voltage lead hermetically-sealed construction, 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 case edge; At transformer low-voltage lead, place is provided with seal receptacle, 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; Pressure bowl to be pressed on sealing ring and to be fixed by clamp nut.Sealing structural safety is reliable, good sealing effect, can the demand of following formula transformer low voltage part waterproof, sealing contentedly.
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, again implementing urban afforestation on a large scale, make somebody a mere figurehead into etc. power supply and lighting engineering, be intended to improve streetscape city looks, build harmonious city good for habitation.At present, the requirement of construction to power equipment of urban planning, communal facility is more and more higher, in developed countries such as America and Europes, according to Urban ecological design theory, progressively transformer is imbedded underground to install, underground transformer is exactly a kind of new power equipment for the requirement and design and development meeting above-mentioned field.The technology that this product requirement adopts some new in waterproof, sealing, insulation, anticorrosion, shockproof, heat radiation etc. and process; require that in urban power distribution network, not only can not add protection is directly installed on underground operation; also can be immersed in water within a certain period of time and run; also can add protection melt pit as required and give installation and operation, be the power transformer product of a new generation.
Summary of the invention
The object of this invention is to provide a kind of underground transformer low-voltage lead hermetically-sealed construction, sealing structural safety is reliable, good sealing effect, can the demand of following formula transformer low voltage part waterproof, sealing contentedly.
The object 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: 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 case edge; At transformer low-voltage lead, place is provided with seal receptacle, 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; Pressure bowl to be pressed on sealing ring and to be fixed by clamp nut.
In the present invention, the seal face of pressure bowl is provided with the groove coordinated with 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 by hold-down bolt and case along compact siro spinning technology.
The present invention prevents top from intake mainly through case along sealing, and low-voltage lead sealing prevents sidepiece from intaking and realizing, and reliably, good sealing effect, can the demand of following formula transformer low voltage part waterproof, sealing contentedly for structural safety.
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 edge of the present invention.
Embodiment
A kind of underground transformer low-voltage lead hermetically-sealed construction, 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 edge of the present invention.Sealing structure comprise case along 1, seal closure 2, seal cover 3, seal receptacle 4, pressure 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, is provided with sealing gasket 12 in seal groove, and seal cover is tightly connected with seal closure by case edge; Seal cover passes through hold-down bolt 9 with case along compact siro spinning technology.At transformer low-voltage lead 8, place is provided with seal receptacle 4, and transformer low-voltage lead reaches outside seal receptacle, and seal receptacle is arranged on seal closure, and sealing ring 41 to be sleeved on transformer low-voltage lead and to be positioned at seal receptacle; Pressure bowl to be pressed on sealing ring and to be fixed by clamp nut.In Fig. 1,10 is low-pressure line-outgoing heads.
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, sealing gasket consolidation, and thrust is even, and assembling reliably just can realize the requirement of top waterproof, sealing.
Seal receptacle is welded in seal closure side.When lead-in wire is installed, first low-voltage cable is reliably connected with low pressure, ensures contact resistance, then sealing ring is enclosed within low-voltage cable, pressurization bowl, then screw in clamp nut compacting.Pressure bowl seal face is processed into groove, radius coordinates with sealing ring end face, when pressure bowl advances toward inner side by the fastening force of clamp nut, power is shared on sealing ring by groove surface equably, sealing ring is shunk, expand part gradually by tight for gap-fill between low-voltage cable and seal closure, thus reaches the effect of lead-in wire position waterproof, sealing; Avoid clamp nut directly to contact with sealing ring simultaneously, the phenomenon of sealing gasket when nut rotates, can be damaged.
Claims (4)
1. a underground transformer low-voltage lead hermetically-sealed construction, it is characterized in that: sealing structure comprises case along (1), seal closure (2), seal cover (3), seal receptacle (4), pressure bowl (5) and clamp nut (6), described seal closure (2) is arranged on transformer box cover (7), it is suitable for reading that case with seal groove (11) is fixed on seal closure (2) along (1), in seal groove (11), be provided with sealing gasket (12), seal cover (3) is tightly connected along (1) and seal closure (2) by case; Seal receptacle (4) is provided with at transformer low-voltage lead (8) place, and transformer low-voltage lead (8) reaches seal receptacle (4) outward, 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); Pressure bowl (5) is pressed on sealing ring (41) and go up and to pass through clamp nut (6) fixing.
2. underground transformer low-voltage lead hermetically-sealed construction according to claim 1, is characterized in that: the seal face of pressure bowl (5) is 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: seal closure (2) is welded on 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 along (1) with case 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 CN103413657A (en) | 2013-11-27 |
| CN103413657B true 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) |
Families Citing this family (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103413657A (en) | 2013-11-27 |
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| 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 | ||
| 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 |