CN207651302U - A kind of modified power transformer tank - Google Patents

Abstract

The utility model discloses a kind of modified power transformer tanks, including babinet, there is the raised line outwardly protruded, raised line after wall box bent upon itself by forming on the side wall of babinet, raised line is vertically arranged and in being intervally arranged, i.e., is a groove between two adjacent raised lines.The raised line of the utility model is equivalent to tank wall with groove and increases as reinforcing rib, also correspond to the thickness that part increases tank wall, tank wall is set to bear the power of bigger and be unlikely to deform, therefore the mechanical strength of fuel tank can be improved, and welding capacity greatly reduces, without welding the orthopedic process after reinforcing rib, structure and processing technology are simple, steel and cost of labor can be saved, thereby reduce overall cost, simultaneously, the surface area of fuel tank increases, therefore the heat dissipation area for increasing fuel tank, improves radiating efficiency, reduces the use of cooling fin.In addition, the shape lines of the utility model are more smooth, monnolithic case is beautiful, applicable suitable for being widely popularized.

Description

A kind of modified power transformer tank

Technical field

The utility model belongs to power transformer technical field more particularly to a kind of modified power transformer tank, special It does not refer to the power transformer tank of 66kV or more.

Background technology

Currently, it with the continuous development of transformer technology and reaches its maturity, power transformer is required to use hermetically sealed oil Case, hermetically sealed fuel tank internal vacuum, vacuum degree reach 133Pa hereinafter, to ensure transformer reliability service.Accordingly, for change More stringent requirements are proposed for the mechanical strength of depressor fuel tank, for high-power transformer, the device body of entire transformer Weigh tens tons or even ton up to a hundred, and fuel tank volume is big, easy tos produce deformation, to realize transformer during transport, lifting Safe and reliable, vacuum oiling practicable purpose, the mechanical strength of fuel tank plays a key effect.

Cover maintenance, the power transformer generally use bell jar of 66kV or more are hung at the scene in order to ensure that transformer can be realized Formula fuel tank can so achieve the purpose that oil tank, detector body are hung out in scene.As shown in Figure 1, bell type tank includes case Body 1 and reinforcing rib 2, reinforcing rib 2 vertically weld thereon along the lateral wall of babinet 1, constitute a steel skeleton and support entire babinet Wall, reinforcing rib 2 are evenly arranged in each side of babinet 1 in interval, and the sidewall surfaces of babinet have been divided into several offices Portion region, reinforcing rib 2 can enhance the tank wall intensity of regional area, to enhance the overall mechanical strength of fuel tank.

But there is following defects for the mechanical reinforcement structure of above-mentioned bell type tank：

(1) need to weld a plurality of reinforcing rib on the lateral wall of fuel tank, welding job amount is big, and processing is complex.

(2) radiator arrangement is limited to, and reinforcing rib can not be arranged to very close, and the effect of reinforcing rib supporting box wall is limited, case The bad mechanical strength of body.

Weld after the completion of, box body wall can temperature distortion, need it is orthopedic it is smooth can just be assembled into whole fuel tank, still, rectify Shape is difficult, and technique is cumbersome.

(4) reinforcing rib is made of steel, and rolled steel dosage is big, of high cost, and the arrangement of reinforcing rib is dumb so that The shape of fuel tank is single, unsightly, therefore, is just gradually eliminated.

Utility model content

The purpose of this utility model is to provide it is a kind of it is simple in structure, at low cost, improve mechanical strength, perfect heat-dissipating, The modified power transformer tank of good appearance.

The purpose of this utility model is realized by technical measures below：A kind of modified power transformer tank, packet Include babinet, it is characterised in that：There is the raised line outwardly protruded, the raised line is by wall box itself on the side wall of the babinet It is formed after bending, the raised line is vertically arranged and in being intervally arranged, i.e., is a groove between two adjacent raised lines.

With the raised line formed after bent upon itself on the box body wall of the utility model, form groove between raised line, raised line and Groove is equivalent to tank wall and increases that reinforcing rib is the same, also corresponds to the thickness that part increases tank wall, tank wall is enable to bear more Big power and be unlikely to deform, therefore, the mechanical strength of fuel tank can be improved, with existing bell type tank using the side of welding reinforcing rib Formula is compared, and welding capacity greatly reduces, and without welding the orthopedic process after reinforcing rib, structure and processing technology are simple, can save steel Material and cost of labor thereby reduce overall cost, meanwhile, the surface area of fuel tank increases, therefore increases the radiating surface of fuel tank Product, improves radiating efficiency, reduces the use of cooling fin.In addition, the shape lines of the utility model are more smooth, it is whole outer Shape is beautiful, applicable suitable for being widely popularized.

As a kind of preferred embodiment of the utility model, the babinet is cuboid, and the side wall of babinet is by four pieces of sides Plate splices composition two-by-two, and the raised line is evenly distributed on every block of side plate.

Every block of side plate of the utility model is integrally formed by plain plate continuous bending.

As a kind of way of recommendation of the utility model, the side wall of the babinet by a pair of opposing short side plate and length Plate-side plate welding forms, and the raised line on the long side plate that is, should by being formed after outwardly protruding a groove on plain plate inner surface The notch of groove is towards in fuel tank；Groove on the short side plate is by shape after the groove that is recessed inwardly on plain plate outer surface At that is, the notch of the groove is towards outside fuel tank.There is the long side plate of the utility model cord tissue, short side plate to have groove knot Structure, not only the peripheral lengths of whole fuel tank can reduce, save steel, and reduce transformer oil, with traditional transformer fuel tank It compares, saves fuel tank cost 20% or so, remarkable in economical benefits meets current low-carbon, green, the theory of environmental protection.

Compared with prior art, the utility model has following significant effect：

(1) there is the raised line formed after bent upon itself on the box body wall of the utility model, groove, raised line are formed between raised line It is equivalent to tank wall with groove to increase as reinforcing rib, also corresponds to the thickness that part increases tank wall, tank wall is enable to bear more Big power and be unlikely to deform, therefore, the mechanical strength of fuel tank can be improved.

(2) with existing bell type tank compared with welding by the way of reinforcing rib, the welding capacity of the utility model subtracts significantly Few, without welding the orthopedic process after reinforcing rib, structure and processing technology are simple, can save steel and cost of labor, and then drop Low overall cost.

(3) the surface area of the utility model increases, and increases the heat dissipation area of fuel tank, improves radiating efficiency, reduces scattered The use of backing.

(4) there is the long side plate of the utility model cord tissue, short side plate to have groove structure, and not only whole fuel tank is outer Girth degree can be reduced, and save steel, and reduce transformer oil, compared with traditional transformer fuel tank, save fuel tank cost 20% or so, remarkable in economical benefits meets current low-carbon, green, the theory of environmental protection.

(5) the shape lines of the utility model are more smooth, and monnolithic case is beautiful, applicable suitable for being widely popularized.

Description of the drawings

The utility model is described in further detail in the following with reference to the drawings and specific embodiments.

Fig. 1 is the schematic top plan view of existing bell type tank；

Fig. 2 is the schematic top plan view of the utility model.

Specific implementation mode

As shown in Fig. 2, be a kind of modified power transformer tank of the utility model, including babinet, babinet are cuboid, There is the raised line 4 outwardly protruded, for raised line 4 by being formed after wall box bent upon itself, raised line 4 is vertical on the side wall of babinet It is arranged and in being intervally arranged, i.e., is a groove 5 between two adjacent raised lines 4.The side wall of babinet is by four blocks of side plates splicing group two-by-two At raised line 4 is evenly distributed on every block of side plate.Every block of side plate is integrally formed by plain plate continuous bending.Raised line and groove are suitable Increase that reinforcing rib is the same in tank wall, also correspond to the thickness that part increases tank wall, enable tank wall bear bigger power and It is unlikely to deform, therefore, the mechanical strength of fuel tank can be improved.Welding capacity also greatly reduces, without welding the orthopedic work after reinforcing rib Sequence, structure and processing technology are simple, steel and cost of labor can be saved, and then reduce overall cost, moreover, the surface area of fuel tank Increase, therefore increase the heat dissipation area of fuel tank, improves radiating efficiency, reduce the use of cooling fin.

The side wall of babinet passes through 6 welding group of short side plate 3 and long side plate by the short side plate 3 and long side plate 6 of a pair of opposing It is the i.e. notch court of the groove by being formed after outwardly protruding a groove on plain plate inner surface at, the raised line 4 on long side plate 6 Into fuel tank, in the present embodiment, raised line 4 is 4, and the groove 5a on short side plate 3 is by inside on plain plate outer surface It is recessed after a groove and is formed, i.e., the notch of groove 5a forms raised line 4a, in this reality towards outside fuel tank between two adjacent grooves 5a It applies in example, groove 5a is 2, and raised line 4a is 3.Long side plate has cord tissue, and short side plate has groove structure, not only whole The peripheral lengths of a fuel tank can be reduced, and save steel, and reduce transformer oil, compared with traditional transformer fuel tank, be saved Fuel tank cost 20% or so, remarkable in economical benefits.

The process of the utility model is：When processing, according to the size of transformer capacity, the steel of suitable thickness is selected Steel plate is placed and is continuously bent to it using dedicated bending mold on a hydraulic press, is processed into setting on the steel plate by plate Convex, groove, spacing and number convex, between groove can be selected according to the flexible in size of transformer capacity.Every piece of tank wall bending After the completion, the side wall of babinet is constituted by being welded four pieces of tank walls being stitched together.

The embodiment of the utility model is without being limited thereto, the above according to the present utility model, according to the general of this field Logical technological know-how and customary means, under the premise of not departing from the utility model above-mentioned basic fundamental thought, the utility model may be used also To make the modification, replacement or change of other diversified forms, all fall within the utility model rights protection scope.

Claims (3)

1. a kind of modified power transformer tank, including babinet, it is characterised in that：There is convex on the side wall of the babinet The raised line gone out, by being formed after wall box bent upon itself, the raised line is vertically arranged and is in be intervally arranged the raised line, It is a groove between two i.e. adjacent raised lines；Short side plate and long plate-side plate welding group of the side wall of the babinet by a pair of opposing It is the i.e. notch of the groove by being formed after outwardly protruding a groove on plain plate inner surface at, the raised line on the long side plate Towards in fuel tank；Groove on the short side plate is formed by being recessed inwardly on plain plate outer surface after a groove, i.e., this is recessed The notch of slot is towards outside fuel tank.

2. modified power transformer tank according to claim 1, it is characterised in that：The babinet is cuboid, case The side wall of body is spliced two-by-two by four blocks of side plates to be formed, and the raised line is evenly distributed on every block of side plate.

3. modified power transformer tank according to claim 2, it is characterised in that：Every block of side plate is continuous by plain plate Bending is integrally formed.