CN201117395Y

CN201117395Y - Transformer oil tank

Info

Publication number: CN201117395Y
Application number: CNU2007201262558U
Authority: CN
Inventors: 韩晓东; 孟丽坤
Original assignee: XI'AN ELECTRIC MANUFACTURING CORP
Current assignee: China XD Electric Co Ltd
Priority date: 2007-10-30
Filing date: 2007-10-30
Publication date: 2008-09-17
Anticipated expiration: 2017-10-30

Abstract

The utility model discloses a transformer oil tank which includes a tank, a tank bottom and a tank cover; the outer side wall of the tank is provided with a supporting plate; the supporting plate is provided with a bearing support; the outer wall of the tank is provided with a groove-shaped reinforcing rib; the groove-shaped reinforcing rib is provided with a lifting bar; a plurality of triangular reinforcing plates are arranged at the joint between the inner side of the tank bottom and the inner side of the tank; the inclined surfaces of the triangular reinforcing plates are provided with long strip plates. The oil tank of the utility model has the advantages of small size, high strength, convenient transportation, good shielding effect and no local overheat phenomenon.

Description

A kind of oil tank of transformer

Technical field

The utility model relates to a kind of Oiltank structure that is applicable to high-power transformer, is specially adapted to adopt the big capacity high voltage transformer of extraordinary means of transportation.

Background technology

Because big capacity, the good economy performance of high voltage transformer in power system operation, lifting along with technical capability, improving constantly of design of transformer capacity and electric pressure, cause that transformer overall dimensions and hauled weight acutely increase, and the restriction of the transportation condition of power transformer product does not obviously improve: in the railway transportation, require the height of goods carried, the transportation boundary that width can not surpass railway culvert; And in the highway transportation, be subjected to all multifactor influences such as limit for height such as bridge, culvert and road conditions, and the overall dimension that transport goods also there are many restrictions, the transportation of therefore big capacity high voltage transformer is the difficult problem of puzzlement design of transformer always.The conventional transformer fuel tank is provided with reinforcement usually on six surfaces, because reinforcement has oneself height, must increase the overall dimension of transformer, influences the transportation of transformer.The leakage field that causes owing to the transformer capacity of improving constantly, and the local overheating phenomenon that therefore produces also is to need to solve.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned prior art deficiency, and a kind of oil tank of transformer is provided, and this fuel tank volume is little, intensity is high, convenient transportation, and shield effectiveness is good, no local overheating phenomenon.

The technical solution of the utility model is achieved in that

The utility model comprises at the bottom of casing, the case 3 and case lid 10, and casing 7 lateral walls are provided with support plate 5, and carrying support 6 is set on support plate 5, on casing 7 outer walls flute profile reinforcement 4 are set, and flute profile reinforcement 4 is provided with joint hinge 8.

According to above technical scheme, also can at the bottom of case, be provided with a plurality of triangle stiffeners 2 with casing 7 inboard junctions in 3 inboards, arrange elongated plates 1 on the inclined-plane of triangle stiffener 2.

The utility model casing 7 outer walls adopt flute profile reinforcement 4 to strengthen.3 inboard and casing 7 inboard junctions employing triangle reinforcements at the bottom of case, triangle stiffener 2 is placed over against outside reinforcement, be equivalent to floor and reliably strengthen at the bottom of to tank wall and case, this reinforcement is stressed and to reduce at the bottom of the fuel tank case 3 deflections in the lifting process remarkably productive to trim tank; To 3 be connected as a single entity at the bottom of casing 7 and the case simultaneously, reduced at the bottom of the case 3 span, strengthen 3 mechanical strengths at the bottom of the case, effectively reduce at the bottom of the case 3 deflection; Therefore extra reinforcement must not arranged again in the outside at the bottom of case, can economical with materials, and the shipping height size of dwindling transformer simultaneously.

Be provided with continuous electric screen 9 at 3 madial walls at the bottom of casing 7 madial wall vertical directions, elongated plates 1 case that the surface reaches with casing 7 madial walls link to each other, be provided with two electric screens 11 along case lid 10 is inboard by boundary, the good and electric screen of shield effectiveness is at high potential region electrode shapeliness.

Be respectively arranged with two transportation support plates 5 in fuel tank casing 7 outside high and low pressure sides, when transformer transports, be convenient to install the particular form transportation with carrying support.Though be to be used for transportation, but because it is arranged on casing 7 lateral walls and the casing one, and this plate 3 is connected as a single entity at the bottom of with case edge and case, on short transverse, just be equivalent to buckstay, its strength and stiffness provide effective support to fuel tank, fuel tank is carried out strong reinforcement, strengthened the fuel tank mechanical strength.

Description of drawings

Fig. 1 is a profile schematic diagram of the present utility model.

Fig. 2 is that end view of the present utility model and case inner member are arranged schematic diagram.

Embodiment

Below in conjunction with accompanying drawing content of the present utility model is described in further detail.

With reference to Fig. 1, shown in Figure 2, the utility model is provided with a plurality of triangle stiffeners 2 at casing 7 along place, long axis direction bottom, arrange elongated plates 1 on the inclined-plane of triangle stiffener 2, casing 7 lateral walls are provided with support plate 5, carrying support 6 is set on support plate 5, on casing 7 outer walls flute profile reinforcement 4 is set, joint hinge 8 is arranged on the flute profile reinforcement 4.If the outer limit of transportation is nervous, also can be with joint hinge as detachable.

The utility model in use, fuel tank main body adopts the flat cover structure of bucket formula, fuel tank is square, 3 be plate armature at the bottom of case lid 10, the case, employing monoblock steel plate, no splicing welding joint; Tank wall is dull and stereotyped, strengthens with the flute profile reinforcement; Reinforcement is all at fuel tank internal, and 3 is the plane in the ground contact-making surface at the bottom of the case; Case lid 10 is a plate armature, adopts the monoblock steel plate, and no splicing welding joint strengthens fuel tank intensity.Reinforcement is arranged as far as possible symmetrically, makes whole fuel tank form the frame structure in a space, and each reinforcement is arranged each other and is connected, and is equivalent to buckstay and supports each other, and then guarantee the intensity of tank wall.And reinforcement all adopts steel plate once to be bent into U-steel reinforcement, dependable performance.

At the bottom of the inner box 3 and tank wall between adopt the triangle reinforcement, 3 be connected as a single entity at the bottom of with elongated plates 1, simultaneously triangle stiffener 2 placed over against outside reinforcement 4, not only improved the mechanical strength of fuel tank sidewall and case, guarantee the reliability of fuel tank, effectively dwindled the height of transportation simultaneously.

It is discontinuous to be provided with continuous first electric screen, 9, the first electric screens 93 madial walls middle part at the bottom of case at 3 madial walls at the bottom of casing 7 madial wall vertical directions, elongated plates 1 case that the surface reaches with casing 7 madial walls link to each other.

Be provided with two second electric screens, 11, the second electric screens 11 by boundary and be symmetrical in casing 7 long axis along case lid 10 is inboard, and be flexible coupling with electric screen 9 in case lid 10 inboards.

High and low pressure side at casing 7 outer walls respectively is provided with two support plates 5, when transformer transports, is convenient to install the particular form transportation with carrying support.

Claims

1, a kind of oil tank of transformer, comprise (3) and case lid (10) at the bottom of casing (7), the case, it is characterized in that, high and low pressure side at casing (7) lateral wall is respectively arranged with two support plates (5), carrying support (6) is set on support plate (5), also be provided with flute profile reinforcement (4) on casing (7) lateral wall, flute profile reinforcement (4) is provided with joint hinge (8).

2, a kind of oil tank of transformer according to claim 1 is characterized in that, (3) are inboard at the bottom of case is provided with a plurality of triangle stiffeners (2) with the inboard junction of casing (7), is furnished with elongated plates (1) on the inclined-plane of triangle stiffener (2).

3, a kind of oil tank of transformer according to claim 2, it is characterized in that, be provided with continuous first electric screen (9) along casing (7) madial wall vertical direction, elongated plates (1) surface and with (3) madial wall at the bottom of the case that casing (7) madial wall links to each other, first electric screen (9) is discontinuous in the middle part of (3) madial wall at the bottom of case.

4, a kind of oil tank of transformer according to claim 3, it is characterized in that, be provided with two second electric screens (11) along case lid (10) is inboard by boundary, second electric screen (11) is symmetrical in casing (7) long axis in case lid (10) inboard, and is flexible coupling with electric screen (9).

5. a kind of oil tank of transformer according to claim 4 is characterized in that, described first electric screen (9), second electric screen (11) are copper shield.