CN202632950U - Oil injection cup structure of high pressure oil-immersed transformer - Google Patents
Oil injection cup structure of high pressure oil-immersed transformer Download PDFInfo
- Publication number
- CN202632950U CN202632950U CN 201220214193 CN201220214193U CN202632950U CN 202632950 U CN202632950 U CN 202632950U CN 201220214193 CN201220214193 CN 201220214193 CN 201220214193 U CN201220214193 U CN 201220214193U CN 202632950 U CN202632950 U CN 202632950U
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- China
- Prior art keywords
- cup
- flange
- lower flange
- upper flange
- stop collar
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- Expired - Fee Related
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Abstract
The utility model relates to an oil injection cup structure of a high pressure oil-immersed transformer, wherein the oil injection cup structure comprises a cup body, an upper flange is arranged on the upper end face of the cup body, and an oil injection pipe connected with an oil injection system, an air pipe connected with a vacuum system for vacuumizing and a countersunk screw hole are arranged on the upper flange; a sealing ring is arranged between the upper flange and the cup body; the lower end of the cup body is connected with the main body of the high pressure oil-immersed transformer through a lower flange, a countersunk screw hole corresponding to the countersunk screw hole on the upper flange is arranged on the lower flange, and a sealing ring is arranged between the lower flange and the cup body; the oil injection cup structure is characterized in that a limiting sleeve for limiting the positions of the upper and lower flanges is arranged between the upper flange and the lower flange, the limiting sleeve is sleeved on the cup body, and an observation window used for observing the liquid level height in the cup body is arranged on the limiting sleeve; and the limiting sleeve is connected with the upper flange and the lower flange through bolts. The oil injection cup structure provided by the utility model can accurately limit the extrusion degree on the upper and lower flanges on the sealing ring so as to improve the sealing effect and prevent the accidental damage of the cup body.
Description
Technical field
The utility model relates to a kind of priming cup structure of high voltage oil immersion transformer.
Background technology
High voltage oil immersion transformer need be connected to its priming cup in vacuum system and the injection system when oiling.Need vacuumize earlier before the oiling, close vacuum valve then, open fuel feeding valve and carry out oiling; After oiling a period of time, again product is vacuumized, close vacuum valve after exhausting again, open fuel feeding valve and carry out oiling.So circulation is repeatedly filled with up to oil.
Existing priming cup structure comprises transparent cup, and the upper surface of cup is provided with upper flange, and upper flange is provided with oil fuel tube that is connected with injection system and tracheae that vacuumizes usefulness and the screw that is connected with vacuum system; Be provided with sealing ring between upper flange and the cup; The lower end of cup connects the main body of high voltage oil immersion transformer through lower flange, lower flange be provided with upper flange on the corresponding screw of screw, also be provided with sealing ring between lower flange and the cup.During installation, screw rod passes screw corresponding on the upper and lower flange and with nut upper flange, cup and lower flange is assembled together.
Seal groove in this structure is not owing to have spacingly, and nut is screwed into degree needs armrest sense and manual observation, and will inevitably there be certain error in this, if it is not enough to tighten the degree of compressing into, then sealing can not reach requirement, can leakage of oil in the oiling process; And if compress into tension, then sealing ring can excessively be torn because of compressing, even more serious situation can be pressed the machine glass infuser of cup friedly, and cup polymethyl methacrylate tube can become fragile when using, easily because collision and the damage of breaking.
Summary of the invention
Thereby being the present situation to prior art, the utility model technical problem to be solved provide a kind of nut of can accurately controlling to be screwed into the priming cup structure that degree effectively improves the lubricating cup sealing property, prolongs the high voltage oil immersion transformer in sealing ring and cup useful life.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the priming cup structure of this high voltage oil immersion transformer; Comprise cup; The upper surface of cup is provided with upper flange, and said upper flange is provided with the oil fuel tube that is connected with injection system and the tracheae that vacuumizes usefulness that is connected with vacuum system and countersunk head screw; Be provided with sealing ring between upper flange and the cup; The lower end of cup connects the main body of high voltage oil immersion transformer through lower flange, lower flange be provided with upper flange on the corresponding countersunk head screw of countersunk head screw, be provided with sealing ring between lower flange and the cup; It is characterized in that being provided with between said upper flange and the said lower flange stop collar of the upper and lower flange of restriction position, this stop collar is set on the said cup, and said stop collar is provided with the form that is used to observe liquid level in the said cup; Said stop collar and described upper flange, lower flange link together through bolt.
Said upper flange and said stop collar link together through bolt, and said lower flange and said stop collar link together through other bolt.
The bolt that connect said upper flange and said stop collar, is connected said lower flange and said stop collar all has four pieces, and evenly distributes along the circumference of said upper flange, said lower flange.
Compared with prior art; The priming cup structure of the high voltage oil immersion transformer that the utility model provided can control the be screwed into degree of bolt to upper and lower flange, thereby the upper and lower flange of accurate limiting is to the extruding degree of sealing ring owing to increased steel protection stop collar; Make it can either reach the effect of optimal seal; Again can be to the excessive extruding of sealing ring, tear, thereby prolong useful life of sealing ring, also avoided excessive compression to press the machine glass infuser of cup fried simultaneously; And owing to be enclosed within the protective effect of the outer steel protection stop collar of polymethyl methacrylate tube cup, the damage that polymethyl methacrylate tube cup accident is collided with when effectively having prevented to use; And upper and lower flange uses the countersunk head hexagon socket head cap screw to be connected with stop collar respectively in the preferred version, has reduced parts and securing member that single operation connects, and assembling is simple, convenient, reliable, and structure is more reasonable, and appearance looks elegant is generous.
Description of drawings
Fig. 1 is the cross-sectional schematic of the utility model embodiment assembly structure;
Fig. 2 is the decomposing schematic representation of Fig. 1.
Fig. 3 and Fig. 4 face the broken section structural representation with the side-looking direction for stop collar among the utility model embodiment;
Fig. 5 overlooks the floor map of direction for stop collar among this utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
To shown in Figure 5, the priming cup structure of this high voltage oil immersion transformer comprises like Fig. 1:
Cup 1 is tubular structure, adopts transparent polymethyl methacrylate manufacturing.
Lower flange 3 is connected on the lower surface of cup 1, and the perisporium corresponding to cup on its upper surface is provided with annular low groove 31, and lower seal 6 is contained in this low groove 31.Circumferentially be evenly equipped with four following countersunk head screws 32 on the lower flange.
During use, be screwed into respectively in the upper and lower flange screw corresponding and can upper and lower flange and stop collar 4 be fixed together with six square bolts 7 in eight pieces of countersunk heads, thereby cup is also assembled with stop collar.
Present embodiment is after tighting a bolt, and upper and lower sealing ring has been compressed 1/3rd just, has promptly guaranteed the optimal seal effect, again can excessive compression sealing ring and cup, can effectively prevent the damage that the cup accident is collided with again simultaneously; Eight pieces of bolts are simple, convenient, reliable to the assembling of upper and lower flange and stop collar, appearance looks elegant.
Claims (3)
1. the priming cup structure of a high voltage oil immersion transformer comprises cup, and the upper surface of cup is provided with upper flange, and said upper flange is provided with the oil fuel tube that is connected with injection system and the tracheae that vacuumizes usefulness that is connected with vacuum system and countersunk head screw; Be provided with sealing ring between upper flange and the cup; The lower end of cup connects the main body of high voltage oil immersion transformer through lower flange, lower flange be provided with upper flange on the corresponding countersunk head screw of countersunk head screw, be provided with sealing ring between lower flange and the cup; It is characterized in that being provided with between said upper flange and the said lower flange stop collar of the upper and lower flange of restriction position, this stop collar is set on the said cup, and said stop collar is provided with the form that is used to observe liquid level in the said cup; Said stop collar and described upper flange, lower flange link together through bolt.
2. the priming cup structure of high voltage oil immersion transformer according to claim 1 is characterized in that said upper flange and said stop collar link together through bolt, and said lower flange and said stop collar link together through other bolt.
3. the priming cup structure of high voltage oil immersion transformer according to claim 2; The bolt that it is characterized in that connecting said upper flange and said stop collar, is connected said lower flange and said stop collar all has four pieces, and evenly distributes along the circumference of said upper flange, said lower flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220214193 CN202632950U (en) | 2012-05-11 | 2012-05-11 | Oil injection cup structure of high pressure oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220214193 CN202632950U (en) | 2012-05-11 | 2012-05-11 | Oil injection cup structure of high pressure oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202632950U true CN202632950U (en) | 2012-12-26 |
Family
ID=47386111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220214193 Expired - Fee Related CN202632950U (en) | 2012-05-11 | 2012-05-11 | Oil injection cup structure of high pressure oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202632950U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681262A (en) * | 2013-11-28 | 2015-06-03 | 特变电工康嘉(沈阳)互感器有限责任公司 | Capacitive voltage divider vacuum oil injection tool and oil injection method |
| CN104867659A (en) * | 2015-04-29 | 2015-08-26 | 国网辽宁省电力有限公司大连供电公司 | Transformer breather |
-
2012
- 2012-05-11 CN CN 201220214193 patent/CN202632950U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681262A (en) * | 2013-11-28 | 2015-06-03 | 特变电工康嘉(沈阳)互感器有限责任公司 | Capacitive voltage divider vacuum oil injection tool and oil injection method |
| CN104867659A (en) * | 2015-04-29 | 2015-08-26 | 国网辽宁省电力有限公司大连供电公司 | Transformer breather |
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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: 20121226 Termination date: 20150511 |
|
| EXPY | Termination of patent right or utility model |