CN201174293Y

CN201174293Y - Ripple inner oil type fully sealed oil-storage cabinet

Info

Publication number: CN201174293Y
Application number: CNU2008200528258U
Authority: CN
Inventors: 张贵华
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-08
Filing date: 2008-04-08
Publication date: 2008-12-31
Anticipated expiration: 2018-04-08

Abstract

The utility model relates to a ripple inner oil type full sealing oil storage cabinet, consisting of a housing, a ripple expansion core body, an oil transmitting pipe, an exhaust pipe, and an oil level indicating device. The ripple inner oil type full sealing oil storage cabinet is mainly characterized in that the ripple expansion core body adopts stainless steel with good quality and is one-step molded by the cold spinning automatic molding, and the full sealing expansion type inner container core body is formed by adopting an argon arc automatic welding machine to weld, process and assemble; moreover, the oil transmitting pipeline adopts a single parallel structure. The ripple inner oil type full sealing oil storage cabinet has the advantages of simple structure, convenient installation, easy oil injection, long service life, low maintenance fee, wide applicability, good energy-saving effect and high reliability of the system.

Description

The hermetically sealed oil conservator of ripple inner oil type

One, technical field:

The utility model relates to a kind of corollary equipment of oil-immersed power transformer---oil conservator, the hermetically sealed oil conservator of particularly a kind of ripple inner oil type.

Two, background technology:

From the present situation power transformer of China's electrical network, oil conservator has developed the three generations.The first generation is the capsule-type oil conservator, because the easy season cracking of capsule, sealing property is relatively poor, and hexyl originally withdraws from electrical network now.The second generation is a diaphragm type storage oil cabinet, it be with thickness be that the nylon cloth of 0.26-0.35mm is two-layer, therebetween with neoprene, to be coated with nitrile rubber outward synthetic, its installation quality and maintenance technology all have strict requirement, result of use is not satisfactory.The above this traditional oil conservator exists following several defective:

1, because the be full of cracks micropore appears in capsule, barrier film, air moisture content is entered in the transformer oil, cause that water content increases in the oil, insulation descends, and is forced to oil strain or interruption maintenance, renew oil more during the bad change of oil;

2, the upper and lower surface of capsule, barrier film is air and transformer oil, because operating temperature of oil in transformer is higher, the temperature difference of capsule, barrier film upper and lower surface is bigger, and at southern summer temp height, swell increment is big; In northerly winter, temperature is low, the moisture that very easily condenses at capsule, above the barrier film, even the phenomenon of freezing appears, bring serious threat for the safe operation of power transformer;

3, the indication of oil level indicator realizes by mechanical switch and transmission, because the dislocation of machinery is malfunctioning, being in operation false oil level occurs and cause the generation of accident potential;

4, the sealing problem at tubular type or board-like oil level and other position is difficult to solve, and the oil impregnate situation of point of attachment is a hard nut to crack;

5, because misoperation causes capsule and diaphragm failures, be forced to have a power failure and change, cause production work to carry out continuously;

6, because capsule and barrier film exhaust are difficult, therefore, initial oiling difficulty is bigger, even retains residual air.

Three, summary of the invention:

The purpose of this utility model is to provide a kind of novel oil conservator---the hermetically sealed oil conservator of ripple inner oil type.

The purpose of this utility model is achieved in that the hermetically sealed oil conservator of a kind of ripple inner oil type, form by shell, expansion core body, petroleum pipeline, oil fuel tube, blast pipe, hose connector, oil level indicating device, it is characterized in that: the expansion core body adopts the high-quality stainless steel, through the one-shot forming of cold spinning automatic moulding machine, and carry out welding processing through the argon arc welding machine and assembly and be totally enclosed type expansion type inner bag core body; Pass through the pipeline road parallel connection between the described totally enclosed type expansion type inner bag core body; Top at totally enclosed type expansion type inner bag core body is provided with soft connecting leg of exhaust and blast pipe; Also be provided with the oil level indicator board on the totally enclosed type expansion type inner bag core body; On shell, be provided with oil level glass.

Have the heat radiation window on the shell of the present utility model.

The utility model is furnished with oil level verbal cue warning device, connects by the binding post box on the shell.

Totally enclosed type expansion type inner bag core body of the present utility model is by the Cr18Ni9Ti made.

The utlity model has following advantage:

1, the ripple expander is an all-sealed structure, need not install dehydrating breather additional.Transformer and outside air are isolated fully, have really realized the hermetically sealed of transformer, have protected transformer oil, have improved power transformer useful life greatly.

2, the ripple expander adopts stainless steel material, makes transformer directly contact stainless steel surfaces, so can not pollute transformer oil, effectively prevents oil quality deterioration.The structure of ripple expander and material have determined that novel bellow expansion oil storage tank is wear-resisting, corrosion-resistant, intensity is high, long working life, highly sensitive, maintenance is little, thereby realize the transformer freedom from repairs, greatly reduce the electric power system maintenance cost.

3, novel bellow expansion oil storage tank has been broken the oil level pointing-type of traditional oil conservator, has cancelled the oil level conversion table.Can carry out voice suggestion in the control room to high and low oil level by phonetic alarm device simultaneously by the outdoor Direct observation pointer position of observation window on the oil conservator, remind the value of keeping personnel to note and processing in time, the economical operation and the safe operation that improve electrical network greatly.

4, the compensation rate magnitude range is wide, can be by user's demand particular design oil conservator, satisfy different compensation rate requirements, the compensation rate maximum can reach 10000kg, can both adapt to electric power system, capacitor, voltage transformer, power transformer, arc-suppression reactor etc., improve application category greatly.

5, simple in structure, easy for installation, oiling is easy.Novel ripple expansion inner oil type oil conservator not only is used for the configuration of new transformer, more can make things convenient for original transformer to transform traditional oil conservator, has improved applicability greatly.

6, oil conservator moves under pressure-fired; can reduce the interior pressure of transformation body; thereby reduced the seepage of rubber cushion connecting portion; when ambient temperature-30 ℃, still keep the pressure-fired operating state; can prevent effectively that air from entering in the transformer-cabinet; protected the oil of transformer, significantly reduced and changed a large amount of new transformer oil, thereby reduced cost.

7, bellow expansion oil storage tank self has thermolysis.Because have the heat radiation window on the oil conservator shell, ripple expander heat when breathing is easy to distribute, thereby reduce transformer loss, improved energy-conservation effect greatly.

8, novel bellow expansion oil storage tank has perfect autoprotection function.When the transformer oil mass varies with temperature the maximum compensation that exceeds oil conservator, the automatic emptying of ripple expansion core body protective device, the core body of avoiding expanding damages, and can protect transformer effectively simultaneously, improves the reliability of system greatly.

Four, description of drawings:

Fig. 1 is the utility model structural representation;

Fig. 2 is Fig. 1 right view.

Among the figure: 1, shell; 2, heat radiation window; 3, core body protective device; 4, hang handle; 5, the soft connecting leg of exhaust; 6, pipeline road; 7, dish valve; 8, cabinet pin; 9, ripple expansion core body; 10, audio alert binding post box; 11, blast pipe; 12, oil level indicator board; 13, observation window; 14, hose connector; 15, oil fuel tube; 16, framework.

Five, embodiment:

As shown in the figure, the utility model by shell 1, heat radiation window 2, core body protective device 3, hang handle 4, the soft connecting leg 5 of exhaust, pipeline road 6, dish valve 7, cabinet pin 8, ripple expansion core body 9, audio alert binding post box 10, blast pipe 11, oil level indicator board 12, observation window 13, hose connector 14, oil fuel tube 15, framework 16 and form.Ripple expansion core body 9 is arranged in the shell 1; Ripple expansion core body is 2, by pipeline road 6 parallel connections of bottom; Be provided with soft connecting leg 5 of exhaust and blast pipe 11 on the top of ripple expansion core body; On ripple expansion core body, be provided with oil level indicator board 12, on the corresponding shell of oil level indicator board, be provided with oil level glass 13; On shell, have heat radiation window 2; Oil conservator framework 16 is provided with language alarm binding post box.

Claims

1, the hermetically sealed oil conservator of a kind of ripple inner oil type, form by shell, expansion core body, petroleum pipeline, oil fuel tube, blast pipe, hose connector, oil level indicating device, it is characterized in that: the expansion core body adopts the high-quality stainless steel, through the one-shot forming of cold spinning automatic moulding machine, and carry out welding processing through the argon arc welding machine and assembly and be totally enclosed type expansion type inner bag core body; Pass through the pipeline road parallel connection between the described totally enclosed type expansion type inner bag core body; Top at totally enclosed type expansion type inner bag core body is provided with soft connecting leg of exhaust and blast pipe; Also be provided with the oil level indicator board on the totally enclosed type expansion type inner bag core body; On shell, be provided with oil level glass.

2, the hermetically sealed oil conservator of ripple inner oil type according to claim 1 is characterized in that: have the heat radiation window on the shell.

3, the hermetically sealed oil conservator of ripple inner oil type according to claim 1 is characterized in that: be furnished with oil level verbal cue warning device, connect by the binding post box on the shell.

4, the hermetically sealed oil conservator of ripple inner oil type according to claim 1 is characterized in that: totally enclosed type expansion type inner bag core body is by the Cr18Ni9Ti made.