CN2660661Y - Oil level indicator for wholley sealed transformer - Google Patents

Abstract

The utility model relates to an oil-level display device designed for hermetically sealed transformers, pertaining to a transformer component, applicable to hermetically-sealed corrugated oil-tank oil charging and power distributing transformer. The utility model comprises a tube body provided with an inspection window, a glass tube, a floater, a blind flange or a pressure-release valve, etc. 3 or 4 inspection windows are evenly arranged on the inspection circumference of the tube body, and the mounting flange cases welded on the bottom of the tube body and the cover of the oil tank adopt threaded coupling. The utility model is capable to settle the technical problems of the prior art such as complex structure and inconvenient installation, etc.

Description

Full-sealed transformer oil level display unit

Technical field

The utility model belongs to a kind of parts of transformer, be mounted on the transformer case in order to show the device of the gas that fuel tank internal oil level or storage fuel tank internal produce, and venting, minimum oil level or functions such as excess air monitoring, pressure release are arranged, be applicable to the oil-filled distribution transformer of hermetically sealed corrugated tank.

Background technology

At present, the used multi-functional preferably tubular type oil level display unit of hermetically sealed oil-filled distribution transformer is that the patent No. is ZL 01241627.4, and name is called a kind of multi-functional tubular type oil level indicator.Its objective is the minimum oil level that shows the fuel tank internal upper part, prevent solar radiation oil, can in time monitor minimum oil level or excess air, can gather gas or pressure release etc.Its primary structure is: have an inspection hole on body top, be equipped with and inboard wall of tube body sealed glass pipe at the inspection hole place, bottom in body is equipped with float, on float, be equipped with the mark spare that shows the oil level mark, be equipped with flange or the pressure relief valve of being with air relief cock or getting gas sample valve in the sealing of body upper end; Be provided with the locating part of float domain of walker on the lower inner wall of body, the technical problem of its existence is: 1, the form perforate is 1, and direction is adjusted to the satisfied direction of user in the time of need installing; 2, because its lower end and the installation of transformer case lid are to be fixed on the flange seat that is welded with on the case lid with the flange of bolt with its lower end, so structure is complicated, and inconvenience is installed.

Summary of the invention

Be to solve the technical problem that exists in the prior art, the utility model will be provided at body inspect evenly offer on the circumference 3 or 4 inspection holes, simple in structure, more convenient full-sealed transformer oil level display unit is installed.

The technical solution adopted in the utility model is: it comprises body, glass tube, float, blind flange or the pressure relief valve etc. that have inspection hole, its architectural feature is: evenly offered 3 or 4 and inspect window on the inspection circumference of body, and the mounting flange cover that is welded with on body bottom and the fuel tank cap adopts thread connection.

The utility model beneficial effect compared with prior art is:

1, because the utility model employing viewing window is evenly to have offered 3 or 4 inspection holes on the body inspection circumference, product in use can be observed on 360 ° of omniranges, convenient greatly the use;

2,, therefore easy for installation, simple owing to be connected with the mounting flange cover at body or as the lower end screw thread of the following mount pad of body annex;

Description of drawings

Accompanying drawing is the utility model example structure schematic diagram.

Among the figure: 1, body, 1a, inspection hole, 2, float, 2a, notch or groove, 3, oil level mark spare, 4, glass tube, 5, pressure relief valve, 6, mount pad down, 7, the directed locating part of float, 8, the mounting flange cover, 9, go up mount pad.

Embodiment

With reference to accompanying drawing.The embodiment of the utility model embodiment comprises: have body 1, glass tube 4, pressure relief valve 5 or blind flange, the float 2 of inspection hole 1a and the oil level mark spare 3 that is equipped with above thereof etc., its architectural feature is: evenly offered 3 or 4 and inspect window on body 1.

During use, mounting flange is overlapped 8 sealing and fixing on the fuel tank cap of transformer, with body 1 or down the threaded portion of mount pad 6 bottoms screw in mounting flange cover 8 and sealing and fixing gets final product.When the oil level in the oil tank of transformer when the scope of regulation rises or descends, can see that oil level mark spare has demonstrated oil or do not had oil by inspection hole 1a.

Claims (1)

1, full-sealed transformer oil level display unit, comprise body, glass tube, float, blind flange or the pressure relief valve etc. that have inspection hole, it is characterized in that: on the inspection circumference of body, evenly offer 3 or 4 inspection holes, and the mounting flange cover that is welded with on body bottom and the fuel tank cap adopts thread connection.

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