CN2268298Y

CN2268298Y - Fully-sealed oil-storage cabinet

Info

Publication number: CN2268298Y
Application number: CN 96239442
Authority: CN
Inventors: 施祖烈; 吴跃红
Original assignee: Shenyang Transformer Co ltd
Current assignee: TBEA Shenyang Transformer Group Co Ltd
Priority date: 1996-12-19
Filing date: 1996-12-19
Publication date: 1997-11-19
Anticipated expiration: 2006-12-19

Abstract

The utility model belongs to an oil reservoir of a transformer, which is especially suitable for large-scale transformers. The phenomena that the limited oil level of tube-type oil gauges in the prior art can not be alarmed, the oil level can not be measured remotely, and the false oil level is easy to occur are solved. Simultaneously, the problems that rubber capsules are easy to damage and the respiration is not smooth can also be solved. The oil reservoir of a transformer is characterized in that the tube-type oil gauge is provided with a magneto-conductive contact and a magnetic floater; the opening of a small oil bag faces upward; the mouth of the rubber capsule is provided with a limiting and positioning surface. The utility model has the advantages of limited oil level alarm, oil level remote measuring, accurate oil level display, convenient installation and operation, high reliability, etc.

Description

A kind of hermetically sealed oil conservator

The utility model relates to a kind of parts of transformer or claims assembly, belongs to a kind of oil conservator of transformer, is applicable to oil-filled transformer, particularly high-power transformer.

At present, the hermetically sealed oil conservator that high-power transformer is commonly used mainly is made up of cabinet or title shell, capsule or barrier film, tubular type oil meter etc.Its objective is: when the transformer oil in the transformer varied with temperature, capsule or barrier film also expanded thereupon or shrink, and transformer oil and ambient atmosphere are completely cut off, and prevented that oil from making moist and wearing out; Simultaneously, also to demonstrate the variation of oil level by oil meter.Its weak point is: 1, since the tubular type oil meter of this oil conservator form by glass tube being housed between upper and lower gauge stand and being built-in with glass ball float etc. at pipe, therefore, variation that can only the close-ups oil level when minimum or the highest dangerous oil level occurring, can not be sent alarm signal; 2, in existing oil conservator, for making oil and the oil in the cabinet in the oil meter isolated, the small oil bag downward at following oil meter seat and settling chamber's split shed is connected, therefore, when gas occurring in the small oil bag, gas can not be discharged, will in oil meter, demonstrate false oil level, threaten the safe operation of transformer; 3, in adopting the hermetically sealed oil conservator of capsule structure,,, therefore, easily capsule is turned round badly and leaked gas, or cause unsmooth breath when it easily rotates and infinite place during with the housing assembling because original capsule mouthpiece is to adopt outer threaded pipe to constitute.

The purpose of this utility model is to overcome the weak point in the above-mentioned prior art, and provides the warning of limit oil level, a kind of hermetically sealed oil conservator that the oil level demonstration is accurate, easy to install and use, reliability is high.

The purpose of this utility model can reach by following measure: it comprises shell, capsule or barrier film, tubular type oil meter, small oil bag etc., its special character is: be provided with the guide pillar that has minimum oil level magnetic conduction contact in the bottom and have maximum oil position magnetic conduction contact on top in the tubular type oil meter, and on guide pillar, be with the magnetic float that can fluctuate, to realize the warning of the highest and minimum oil level; Can also be provided with the magnetic conduction contact of one or more demonstration oil levels at the middle part of guide pillar, show to realize remote oil level; The small oil bag opening that is connected with following oil meter seat by the connection pipe makes progress, so that the gas in the small oil bag can be discharged fully, eliminates false oil level phenomenon; In the utility model structure of capsule is housed, the capsule mouthpiece top that capsule is connected with the oil conservator shell has external screw thread, on the large cylinder of bottom, be provided with seal groove or face, be provided with in its both sides parallel to the axis and two planes parallel to each other and that highly equate as locating surface, the table top that forms between the lower end of locating surface and large cylinder excircle is provided with and the corresponding joint of capsule mouthpiece in the junction of shell and capsule mouthpiece as spacing plane.

Below in conjunction with drawings and Examples the utility model is described in further detail:

Fig. 1 is the utility model example structure schematic diagram that has capsule;

Fig. 3 is the utility model oil meter structural representation;

Fig. 4 is the structural representation that has the small oil bag oil meter;

Fig. 5 is capsule mouthpiece and oil conservator shell joint assembly structure schematic diagram;

Fig. 6 is the structural representation of capsule mouthpiece;

Fig. 7 is the vertical view of Fig. 6.

With reference to Fig. 1～Fig. 7.Tubular type oil meter 5 is assemblied in an end of shell 1 by oil gauge stand A and following oil meter seat J.In tubular type oil meter 5 oiling between gauge stand A and following oil meter seat J and pipe G in be equipped with and have the guide pillar D that minimum oil level magnetic conduction contact F and top have maximum oil position magnetic conduction contact C in the bottom, be with the magnetic float E that can fluctuate on guide pillar D, the lead-in wire of magnetic conduction contact C and F is drawn by the hole B on the gauge stand that oils.As want the remote measurement oil level to change, also can be provided with one or more magnetic conduction contact N at the middle part of guide pillar D.One end of connection pipe 6 is communicated with following oil meter seat J, and the other end is communicated with the small oil bag 7 that settling chamber's 8 split sheds that are located at shell 1 bottom one end make progress.End at following oil meter seat J is equipped with bleeder plug I, on upper and lower oil meter seat A, J sealing ring H is housed.

Bottom at shell 1 also is provided with collector box 9.Fig. 2 is the utility model that barrier film is housed, and its shell 1 is divided into up and down two parts, and barrier film 10 is contained in shell about in the of 1 between two parts.Fig. 1 is the utility model that capsule is housed, the mouthpiece 2 that is connected with shell 1 is housed on capsule 4 in this utility model, the top of mouthpiece 2 has external screw thread, on the large cylinder of bottom, be provided with seal groove or face, be processed with in the both sides of seal groove or face parallel to the axis and two plane L parallel to each other and that highly equate as locating surface, the level table M that forms between the excircle of the lower end of two plane L (being locating surface) and large cylinder is as confined planes, is provided with location and spacing corresponding joint 3 with mouthpiece 2 in the junction of shell 1 and mouthpiece 2.

Be not difficult to find out that from above-mentioned compared with the prior art the utility model has following good effect:

1, because the utility model is provided with by magnetic float control the highest and minimum in the tubular type oil meter Therefore the magnetic contact of limit oil level, can to sending at a distance alarm signal, simultaneously, also can Establish one or more magnetic conduction contacts at the guide pillar middle part. Realize that the remote measurement oil level changes;

2, because the small oil bag opening upwards that links with oil meter, make the gas in the small oil bag can be complete Therefore full the discharge, eliminated false oil level phenomenon, makes the oil level indication accurately;

3, because in the utility model of capsule is housed, the capsule mouthpiece is provided with locating surface and confined planes, and is being provided with corresponding joint with the shell connection, therefore, that has easily caused when having overcome assembling turns round capsule bad and gas leakage and unsmooth breath phenomenon, and easy for installation.

In a word, but the utlity model has report to the police remote measurement oil level, oil level of limit oil level and show accurate, easy to install and use, reliability advantages of higher.

Claims

1, a kind of hermetically sealed oil conservator, comprise shell, capsule or barrier film, tubular type oil meter, small oil bag etc., it is characterized in that: in the tubular type oil meter, be provided with the guide pillar that has minimum oil level magnetic conduction contact in the bottom and have maximum oil position magnetic conduction contact on top, on guide pillar, be with the magnetic float that can fluctuate;

2, a kind of hermetically sealed oil conservator according to claim 1 is characterized in that: the magnetic conduction contact that can be provided with one or more demonstration oil levels at the guide pillar middle part;

3, a kind of hermetically sealed oil conservator according to claim 1 and 2 is characterized in that: the small oil bag opening that is connected with following oil meter seat by the connection pipe makes progress;

4, a kind of hermetically sealed oil conservator according to claim 3, it is characterized in that: in the utility model structure of capsule is housed, the capsule mouthpiece top that capsule is connected with the oil conservator shell has external screw thread, on the large cylinder of bottom, be provided with seal groove or face, be provided with in its both sides parallel to the axis and two planes parallel to each other and that highly equate as locating surface, the table top that forms between the lower end of locating surface and large cylinder excircle is provided with and the corresponding joint of capsule mouthpiece in the junction of shell and capsule mouthpiece as confined planes.