CN203910441U - Leakage prevention oil-immersed type transformer - Google Patents
Leakage prevention oil-immersed type transformer Download PDFInfo
- Publication number
- CN203910441U CN203910441U CN201420321499.1U CN201420321499U CN203910441U CN 203910441 U CN203910441 U CN 203910441U CN 201420321499 U CN201420321499 U CN 201420321499U CN 203910441 U CN203910441 U CN 203910441U
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- China
- Prior art keywords
- cushion block
- lower cushion
- case
- case lid
- tank
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- Expired - Fee Related
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Abstract
The utility model discloses a leakage prevention oil-immersed type transformer, and aims at providing the leakage prevention oil-immersed type transformer which can fill in the gap between a tank edge and a tank cover when a sealing gasket ages so as to ensure the sealing effect. According to the technical scheme, the leakage prevention oil-immersed type transformer is characterized by comprising an oil tank of the transformer and the tank cover of the transformer, the oil tank is provided with the tank edge, the tank edge is connected with the tank cover through a bolt and a nut, the sealing gasket is arranged between the tank edge and the tank cover, the outer side of the tank cover is bent to form a protection portion, the bolt comprises a head portion and a threaded rod, and an elastic piece for filling in the gap between the tank cover and the tank edge is arranged between the tank cover and the head portion; the sealing gasket comprises an upper cushion block, a first lower cushion block and a second lower cushion block, the first lower cushion block and the second lower cushion block are arranged on the two sides of the upper cushion block, the first lower cushion block and the second lower cushion block tightly abut against and make contact with the upper cushion block, and the abutting and contacting face between the first lower cushion block and the upper cushion block and the abutting and contacting face between the second lower cushion block and the upper cushion block are both wedge-shaped faces. The leakage prevention oil-immersed type transformer is provided.
Description
Technical field
The utility model relates to a kind of technical field of transformer manufacturing, and more particularly, it relates to a kind of leakproof oil-filled transformer.
Background technology
Oil-filled transformer is applicable to electric power system, industrial and mining enterprises, traffic, postal and telecommunication entities, R&D institution etc., various high voltage electric equipments, electric elements, insulating material are carried out to the dielectric(al) test under power frequency or high direct voltage, and oil immersed type testing transformer adopts single frame core formula core structure.Armature winding on iron core, high pressure winding outside, this coaxially arranged leakage flux that reduced, thereby increased the coupling between winding.
At present, application number is that the Chinese patent of 201320541537.X discloses a kind of leakproof oil-filled transformer, it comprises the fuel tank of transformer, case lid, described fuel tank is provided with case edge, described case edge, case lid be connected with bolt, between described case edge and case lid, be provided with sealing gasket, described sealing gasket is provided with the through hole passing for bolt, described sealing gasket is provided with groove towards case along a side, described case is along being provided with the projection towards sealing gasket one side, described bump size and groove size are suitable, described projection is formed along bending by case, outside described case lid, bending forms protection department, described protection department least significant end is lower than case edge.
Although planting, this leakproof oil-filled transformer there is stronger leak resistance, but, in long-term use procedure, if can not get safeguarding timely, just that sealing gasket can occur is aging, owing to being merely bolted, make do not there is the function that makes up voluntarily between case edge and case lid, therefore, between case edge and case lid, can, because of the aging generation of sealing gasket gap, affect sealing effectiveness.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of leakproof oil-filled transformer, can when sealing gasket is aging, make up the gap between case edge and case lid, ensures sealing effectiveness.
For achieving the above object, the utility model provides following technical scheme: a kind of leakproof oil-filled transformer, comprise fuel tank, the case lid of transformer, described fuel tank is provided with case edge, described case is along being connected by bolts and nuts with case lid, described case along and case lid between be provided with sealing gasket, bending forms protection department outside described case lid, described bolt comprises head and screw rod, is provided with the elastic component for making up gap between case lid and case edge between described case lid and head;
Described sealing gasket comprises cushion block, the first lower cushion block and the second lower cushion block, described the first lower cushion block and the second lower cushion block are located at respectively the both sides of pad, described the first lower cushion block and the second lower cushion block and upper cushion block are closely conflicted, and the resistance surface of the first lower cushion block and the second lower cushion block and upper cushion block is lozenges.
By adopting technique scheme, can utilize elastic component, produce gap between upper cushion block, the first lower cushion block and the second lower cushion block time, by the elastic force of self, the case lid of tightly conflicting, ensure the sealing between case lid and case edge, and, be the sealing means of lozenges by the resistance surface of the first lower cushion block and the second lower cushion block and upper cushion block, even if it is aging that described sealing gasket does not occur, also can utilize the structure of described elastic component and lozenges, between guarantee case lid and case edge, in a high sealing state, ensure that the insulating oil in fuel tank can not spill.
The utility model is further set to: described elastic component is bellows, and described bellows-sheathed is located on screw rod; Between described nut and case edge, be provided with wave packing ring.
By adopting technique scheme, utilize coordinating of wave packing ring and bellows, realize produce gap between upper cushion block, the first lower cushion block and the second lower cushion block time, utilize the nose balance of doing of bellows and wave packing ring, because bellows is applicable to low pressure, bellows and wave packing ring are used in conjunction with, can either compensate large displacement, can compensate to again trickle displacement.
The utility model is further set to: the one side that described the first lower cushion block the is gone up cushion block dorsad described protection department of conflicting, the one side that described the second lower cushion block is gone up cushion block is dorsad provided with conflict piece, described conflict piece second lower cushion block of conflicting, described conflict piece and case lid or case are along being wholely set.
By adopting technique scheme, can prevent the first lower cushion block and the second lower cushion block active force generation lateral sliding because of upper lower cushion block, finally depart from case edge, make to lose sealing between case lid and case edge.
The utility model is further set to: described the first lower cushion block and the second lower cushion block are staggered and form soft and hard seal cushion block structure by some flexible graphite plates and some 304 corrosion resistant plates.
By adopting technique scheme, the first lower cushion block being made up of 304 corrosion resistant plates and flexible graphite plate and the second lower cushion block, can have 304 stainless steel materials and flexible graphite characteristic separately concurrently, improves the sealing between described case lid and case edge.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model leakproof oil-filled transformer embodiment.
Reference numeral: 1, fuel tank; 11, conflict piece; 12, case edge; 2, case lid; 21, protection department; 31, screw rod; 32, head; 4, nut; 5, upper cushion block; 6, the first lower cushion block; 7, the second lower cushion block; 8, bellows; 9, wave packing ring.
Embodiment
With reference to Fig. 1, the utility model leakproof oil-filled transformer embodiment is described further.
As shown in Figure 1, a kind of leakproof oil-filled transformer, comprise fuel tank 1, the case lid 2 of transformer, described fuel tank 1 is provided with case along 12, described case is connected by bolts and nuts 4 with case lid 2 along 12, described case along 12 and case lid 2 between be provided with sealing gasket, the 2 outside bendings of described case lid form protection departments 21, described bolt comprises head 32 and screw rod 31, is provided with for making up case lid 2 and the case elastic component along gap between 12 between described case lid 2 and head 32;
Described sealing gasket comprises cushion block 5, the first lower cushion block 6 and the second lower cushion block 7, described the first lower cushion block 6 and the second lower cushion block 7 are located at respectively the both sides of pad, described the first lower cushion block 6 and the second lower cushion block 7 are closely conflicted with upper cushion block 5, and the first lower cushion block 6 and the second lower cushion block 7 are lozenges (it should be noted that, described screw rod 31 is arranged in cushion block 5) herein with the resistance surface of upper cushion block 5.
Can utilize elastic component, produce gap between upper cushion block 5, the first lower cushion block 6 and the second lower cushion block 7 time, by the elastic force of self, the case lid 2 of tightly conflicting, ensure that case lid 2 and case are along the sealing between 12, and, be the sealing means of lozenges by the resistance surface of the first lower cushion block 6 and the second lower cushion block 7 and upper cushion block 5, even if it is aging that described sealing gasket does not occur, also can utilize the structure of described elastic component and lozenges, ensure case lid 2 and case along between 12 in a high sealing state, the insulating oil in guarantee fuel tank 1 can not spill.
Described elastic component is bellows 8, and described bellows 8 is set on screw rod 31; Described nut 4 and case are provided with wave packing ring 9 between 12.
Utilize coordinating of wave packing ring 9 and bellows 8, realize produce gap between upper cushion block 5, the first lower cushion block 6 and the second lower cushion block 7 time, utilize the nose balance of doing of bellows 8 and wave packing ring 9, because bellows 8 is applicable to low pressure, bellows 8 and wave packing ring 9 are used in conjunction with, large displacement can either be compensated, trickle displacement can be compensated to again.
The one side that described the first lower cushion block 6 the is gone up cushion block 5 dorsad described protection department 21 of conflicting, the one side that described the second lower cushion block 7 is gone up cushion block 5 is dorsad provided with conflict piece 11, described conflict piece 11 second lower cushion block 7 of conflicting, described conflict piece 11 is wholely set along 12 with case lid 2 or case.
Can prevent the first lower cushion block 6 and the second lower cushion block 7 active force generation lateral sliding because of upper lower cushion block, finally depart from case along 12, make case lid 2 and case lose sealing between 12.
Described the first lower cushion block 6 and the second lower cushion block 7 are staggered and form soft and hard seal cushion block structure by some flexible graphite plates and some 304 corrosion resistant plates.
The first lower cushion block 6 being made up of 304 corrosion resistant plates and flexible graphite plate and the second lower cushion block 7, can have 304 stainless steel materials and flexible graphite characteristic separately concurrently, improves described case lid 2 and case along the sealing between 12.
The above makes preferred implementation of the present utility model, does not depart from for the person of ordinary skill of the art under the prerequisite of the utility model principle, can also make some modification and improvement, and these also should be considered as protection range of the present utility model.
Claims (4)
1. a leakproof oil-filled transformer, comprise fuel tank, the case lid of transformer, described fuel tank is provided with case edge, described case is along being connected by bolts and nuts with case lid, between described case edge and case lid, be provided with sealing gasket, outside described case lid, bending forms protection department, it is characterized in that: described bolt comprises head and screw rod, is provided with the elastic component for making up gap between case lid and case edge between described case lid and head;
Described sealing gasket comprises cushion block, the first lower cushion block and the second lower cushion block, described the first lower cushion block and the second lower cushion block are located at respectively the both sides of pad, described the first lower cushion block and the second lower cushion block and upper cushion block are closely conflicted, and the resistance surface of the first lower cushion block and the second lower cushion block and upper cushion block is lozenges.
2. leakproof oil-filled transformer according to claim 1, is characterized in that: described elastic component is bellows, and described bellows-sheathed is located on screw rod; Between described nut and case edge, be provided with wave packing ring.
3. leakproof oil-filled transformer according to claim 2, it is characterized in that: the one side that described the first lower cushion block the is gone up cushion block dorsad described protection department of conflicting, the one side that described the second lower cushion block is gone up cushion block is dorsad provided with conflict piece, described conflict piece second lower cushion block of conflicting, described conflict piece and case lid or case are along being wholely set.
4. leakproof oil-filled transformer according to claim 3, is characterized in that: described the first lower cushion block and the second lower cushion block are staggered and form soft and hard seal cushion block structure by some flexible graphite plates and some 304 corrosion resistant plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420321499.1U CN203910441U (en) | 2014-06-17 | 2014-06-17 | Leakage prevention oil-immersed type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420321499.1U CN203910441U (en) | 2014-06-17 | 2014-06-17 | Leakage prevention oil-immersed type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910441U true CN203910441U (en) | 2014-10-29 |
Family
ID=51784698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420321499.1U Expired - Fee Related CN203910441U (en) | 2014-06-17 | 2014-06-17 | Leakage prevention oil-immersed type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545021A (en) * | 2020-06-12 | 2020-08-18 | 上海奉净环保设备有限公司 | High-energy ion generator |
| CN113236777A (en) * | 2021-03-25 | 2021-08-10 | 西安近代化学研究所 | Mechanical connecting device capable of filling gaps of different sizes, having no assembling extrusion force and having supporting function |
-
2014
- 2014-06-17 CN CN201420321499.1U patent/CN203910441U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545021A (en) * | 2020-06-12 | 2020-08-18 | 上海奉净环保设备有限公司 | High-energy ion generator |
| CN113236777A (en) * | 2021-03-25 | 2021-08-10 | 西安近代化学研究所 | Mechanical connecting device capable of filling gaps of different sizes, having no assembling extrusion force and having supporting function |
| CN113236777B (en) * | 2021-03-25 | 2022-10-25 | 西安近代化学研究所 | Mechanical connecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150617 |
|
| EXPY | Termination of patent right or utility model |