CN201804666U

CN201804666U - Stepped combined metal bellows oil conservator

Info

Publication number: CN201804666U
Application number: CN2010202960883U
Authority: CN
Inventors: 于孝增
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-19
Filing date: 2010-08-19
Publication date: 2011-04-20
Anticipated expiration: 2020-08-19

Abstract

A stepped combined metal bellows oil conservator comprises an oil conservator casing, as well as two or more metal bellows expansion boxes arranged in the oil conservator casing, wherein each metal bellows expansion box comprises an upper cover plate, a lower cover plate and metal bellows which are welded together; stepped exhaust ports on the upper cover plates of the metal bellows expansion boxes are connected in series through exhaust connecting pipes, and are arranged from front to back in such a manner that the heights of the stepped exhaust ports gradually increase to form a stepped structure; the stepped exhaust port of the last metal bellows expansion box is connected with an air collection box; the air collection box is communicated with an exhaust valve outside the oil conservator body through an exhaust high-pressure bellows; the metal bellows expansion boxes are communicated through siphon oil pipelines; an indicator and a pressure release valve are arranged on the upper cover plate of the first metal bellows expansion box; and a dirt collection chamber, a dirt discharge plug, an oil inlet/outlet and an oil filling opening are arranged at the lower part of the upper cover plate of the first metal bellows expansion box. The oil conservator has the advantages that the high-pressure resistant exhaust bellows can move in the corresponding metal bellows expansion box, so as to avoid damage and reduce the height of the oil conservator; and the dirt collection chamber is arranged at the oil inlet, so as to discharge settled dirt at regular times, purify the oil quality of a transformer, and prolong the service lives of oil in the transformer and the metal bellows expansion boxes.

Description

The ladder combined type metal bellow oil conservator

Technical field:

The utility model relates to a kind of safety guard that is used for power transformer, a kind of specifically transformer ladder combined type metal bellow oil conservator.

Background technology:

The patent No. is that 200520092154.4 multifunction storage Oil Tank is once at existing capsule-type, diaphragm type, the rubber that wavy metal formula conservator or oil conservator exist is easily aging, fragile meeting produces the transformer oil quality deterioration, easily long-pending dunghill damages the bellows expansion performance in the seepage oil, original inner oil type metal bellow type oil conservator, influence its problem such as safe operation in useful life and do further improvement, preferably resolve the defective that prior art exists to a certain extent.But also there are operation process complexity, too high, the flimsy problem of gas exhaust piping range ability.Because of the metal bellows oil conservator all seals weldering extremely, and oil-out has only one, dunghill after several years in the metal bellows oil conservator will be cumulative, because inner oil type oil conservator housing is provided with the heat radiation window, also can adhere to very thick dust and dunghill in the Northwest's bellows surface that dust storm is bigger.(annotate: relevant magazine has been discussed the device that possesses the heat radiation of oil temperature on the real transformer housing), cause each ripple unit flexible inconsistent, then will influence the normal reciprocating motion of ripple, make the Buchholz relay would trip, serious damage ripple is difficult to guarantee the safe operation of metal bellow oil conservator in useful life.

Summary of the invention:

The purpose of this utility model provide a kind of have purify transformer oil function, the transformer ladder combined type metal bellow oil conservator that prolongs transformer oil and metal bellows useful life.

The purpose of this utility model is to realize like this, comprise the oil conservator housing and be arranged on this oil conservator housing interior by upper cover plate, the wavy metal expansion box that lower cover and metal bellows weldering system form, it is characterized in that: above-mentioned wavy metal expansion box is two or more, set ladder exhaust outlet is by series connection and the arrangement from low to high from front to back mutually of exhaust connection pipe on the upper cover plate of each wavy metal expansion box, stepped, last wavy metal expansion box ladder exhaust outlet links to each other with collector box, and collector box is connected by the outer vent valve of exhaust high pressure bellows and cabinet; Each wavy metal expansion box is connected by the siphon pipeline road; On first wavy metal expansion box upper cover plate, pointer and pressure relief valve are set, collecting sewage room are set, put dirty plug, oil inlet and outlet and pouring orifice in this wavy metal expansion box bottom.

It is not fragile to the utility model has the advantages that high pressure resistant blast pipe moves in metal bellow oil conservator, and can reduce the overall height of oil conservator, oil inlet and outlet is set in collecting sewage room, dunghill can be deposited in the collecting sewage room, on upper cover plate, the siphon pipeline road is set, makes it to purify transformer oil and prolong transformer oil and metal bellows useful life with collecting sewage room a distance.Wherein, the staged exhaust outlet, exhaust connection pipe, collector box, pressure relief valve and siphon pipeline road all are arranged on the upper cover plate of metal bellows, so it is simple and convenient, easy to operate that the replacing seal is installed; Can purify transformer oil, regularly discharge the precipitation dunghill, prolong transformer oil and metal bellows oil conservator useful life from putting dirty plug; Applied widely, can select the ladder combined type metal bellow oil conservator of different size for use according to the design capacity of transformer, can satisfy the oil mass compensation of high-power transformer.

Below in conjunction with accompanying drawing the utility model is done following explanation

Description of drawings:

Fig. 1 is the utility model structural representation;

Fig. 2 is the left view of Fig. 1.

Among the figure: 1 cabinet; 2 metal bellows upper cover plates; 3 pressure relief valves; 4 ladder exhaust outlets; 5 working windows; 6 exhausts connection pipe; 7 collector boxs; 8 exhaust high pressure bellowss; 9 vent valves; 10 metal bellows lower covers; At the bottom of 11 cabinets; 12 staged siphon pipeline roads; 13 metal bellowss; 14 put dirty plug; 15 oil inlet and outlets; 16 pouring orifices; 17 collecting sewage room; 18 traffic lights show oil level indicator; 19 oil level labels, 20 cabinet legs, 21 pointers.

Embodiment:

By accompanying drawing as can be known, the utility model comprises by cabinet 1,11 oil conservator housings that constitute with cabinet leg 20 and being arranged in the oil conservator at the bottom of the cabinet by upper cover plate 2, the wavy metal expansion box that lower cover 10 and metal bellows 13 are welded into, this kind wavy metal expansion box is two or more, the upper cover plate 2 set ladder exhaust outlets 4 of each wavy metal expansion box are by exhaust connection pipe 6 series connection and arrangement from low to high from front to back mutually, stepped, last wavy metal expansion box ladder exhaust outlet 4 links to each other with collector box 7, and collector box 7 is connected by the outer vent valve 9 of exhaust high pressure bellows 8 and cabinet; Each wavy metal expansion box is connected by siphon pipeline road 12

Be provided with collecting sewage room 17 and put dirty plug 14 will being in the first wavy metal expansion box lower cover 10 1 ends, be welded with oil inlet and outlet 15 by the flange connection in it, pouring orifice 16 is welded on the oil inlet and outlet 15, staged siphon pipeline road 12 in the wavy metal expansion box will keep certain distances with collecting sewage room 17, and collector box 7, exhaust high pressure bellows 8 and vent valve 9 must be placed on of two or more wavy metal expansion box last positions.For the ease of changing seal side in the middle of cabinet 1 working window 5 is set, oil level label 19 is positioned on the both sides that traffic lights show oil level indicator 18, and a side that is arranged on cabinet 1 simultaneously shows the oil level height, and cabinet leg 20 connects with the installing hole that transformer is reserved.

Using method: open vent valve 9 and pouring orifice 16 beginning oilings, when oil enters contiguous wavy metal expansion box until last wavy metal expansion box by siphon pipeline road 12, constantly note the position of oil level indication, the limit exhaust of marginal not oil, when vent valve 9 close several times repeatedly stabilize oil when flowing out and adjust to the there and then transformer in the corresponding position of oil temperature be as the criterion.

Operation principle: the temperature oily temperature rise that changes in transformer, the oil level volume increases, and oil makes upper cover plate 2 rise gradually in oil inlet and outlet 15 enters the wavy metal expansion box in the oil tank of transformer.The low oil volume minimizing of oily temperature drop descends upper cover plate 2 in transformer, can stretch up and down with the volume freedom of oil and be adapted to the variation of high-power transformer oil volume, guarantee transformer oil and air insulated, put dirty plug 14 and can regularly discharge oily dunghill, play the effect that purifies transformer oil, prolonged the useful life of transformer oil and wavy metal expansion box.

Claims

1. a staged makes up metal bellow oil conservator, comprise the oil conservator housing and be arranged on this oil conservator housing interior by upper cover plate, the wavy metal expansion box that lower cover and metal bellows weldering system form, it is characterized in that: above-mentioned wavy metal expansion box is two or more, set ladder exhaust outlet is by series connection and the arrangement from low to high from front to back mutually of exhaust connection pipe on the upper cover plate of each wavy metal expansion box, stepped, last wavy metal expansion box ladder exhaust outlet links to each other with collector box, and collector box is connected by the outer vent valve of exhaust high pressure bellows and cabinet; Each wavy metal expansion box is connected by the siphon pipeline road; On first wavy metal expansion box upper cover plate, pointer and pressure relief valve are set, collecting sewage room are set, put dirty plug, oil inlet and outlet and pouring orifice in this wavy metal expansion box bottom.

2. staged combination metal bellow oil conservator as claimed in claim 1 is characterized in that: be provided with working window on the oil conservator housing.