CN202126911U

CN202126911U - Mining transformer with heat radiating device

Info

Publication number: CN202126911U
Application number: CN2011202683921U
Authority: CN
Inventors: 司志国; 盖瑞亭; 刘胜燕; 崔宁; 王宗华; 于世永
Original assignee: SHANDONG XIANHE YUEXIN MECHANICAL AND ELECTRICAL Inc
Current assignee: SHANDONG XIANHE YUEXIN MECHANICAL AND ELECTRICAL Inc
Priority date: 2011-07-27
Filing date: 2011-07-27
Publication date: 2012-01-25
Anticipated expiration: 2021-07-27

Abstract

The utility model discloses a mining transformer with a heat radiating device, which belongs to the field of power equipment and comprises a transformer main cavity, a shell box wall on the outer surface of the transformer main cavity, a top arc plate above the transformer main cavity and a shell base disk. A group of thin plate cooling fins is added on the top arc plate, the thickness of the thin plate cooling fins is in a range from 2mm to 5mm, and the space between the thin plate cooling fins is in a range from 30mm to 60mm. By means of the design mode, the mining transformer can enlarge heat radiating area on the premise of free of improvement of the volume of the transformer, and improve heat radiating rate, thereby prolonging service life of the transformer. Generally, the shell box wall is bended to be in a corrugate shape, if the top and the bottom of the bended portion of the corrugate shape are designed to be in right angles, the heat radiating area of the transformer can be further enlarged, and the heat radiating rate can be improved, thereby the service life of the transformer is prolonged.

Description

The mining transformer of band heat abstractor

Technical field

The utility model belongs to field of electrical equipment, particularly with the mining transformer of heat abstractor.

Background technology

At present, mining mobile substation and mining transformer are mainly used in has methane blended gas and the place power supply that coal dust explosion hazard is arranged under the coal mine.The mobile substation mainly is made up of with middle transformer the high and low voltage switch at two, and transformer mainly is made up of with middle transformer the high-low pressure terminal box at two.It is thus clear that the core of these two kinds of equipment all is middle transformer.As everyone knows, transformer in use can produce a large amount of heat, particularly jumbo transformer.The loss of transformer is mainly come out with the embodied of heat exactly, and the quality of transformer heat radiation directly influences the quality and the useful life of transformer, particularly under this airtight and rugged environment in colliery.Therefore in the structured design process of transformer, heat dissipation problem is the factor that at first should consider.

The main radiating mode of mining transformer that China produces at present is natural air cooled heat radiation, and this mode is both economical, and low cost of manufacture can satisfy in the national standard requirement about the transformer temperature rise.In the structural design of transformer case, the volume of housing is big more, and area of dissipation is just big more, and radiating effect is also good more, but considers cost factor and the narrow and small actual conditions of colliery usage space, the infinity that housing can not design.Fig. 1, Fig. 2 and Fig. 3 show mining transformer of the prior art, comprise transformer master chamber, the housing tank wall of side, transformer master chamber, the housing chassis of the top arc plate on top, transformer master chamber and bottom, transformer master chamber.The case top of mining transformer adopts the design of circular arc, and the housing tank wall is bent into corrugated, and the top of corrugated bending place and bottom are semicircle.As can be seen from Figure 2 the upper space in transformer master chamber does not make full use of.In addition, as can beappreciated from fig. 3, also there is room for improvement in the wave structure of this kind housing tank wall.

Though increased area of dissipation in the design of the mining transformer that China is general, can satisfy requirement of strength again.But its radiating effect is relatively poor, makes transformer life shorter.

Summary of the invention

The technical problem that the utility model will solve is: the deficiency that overcomes prior art; A kind of mining transformer with heat abstractor is provided; This transformer mainly leans on natural air cooled heat radiation; Satisfying the area of dissipation that increases transformer under the prerequisite of requirement of strength, improve radiating efficiency, thereby prolong the useful life of transformer.

The utility model solves the technical scheme that its technical problem adopted: the mining transformer of band heat abstractor; Comprise the housing tank wall of transformer master chamber, transformer master chamber outer surface, the top arc plate of top, transformer master chamber, it is characterized in that: install radiating sheet additional on the arc plate of said top.

Preferably, said housing tank wall is bent into corrugated, and the top of corrugated bending place and bottom are square.

Preferably, said radiating sheet thickness is 2～5mm.

Preferably, said radiating sheet spacing is 30～60mm.

Compared with prior art, the beneficial effect of the utility model is; Because it has increased by one group of radiating sheet, thereby has increased the area of dissipation of mining transformer, and has further prolonged the useful life of transformer.And, because radiating sheet increases, do not increase the volume of transformer on the arc plate of top, just can not influence the use of transformer at the inferior small space of coal mine yet.As a kind of improvement of the utility model, the shape of above-mentioned mining transformer housing tank wall is changed, the housing tank wall is bent into corrugated, and the top of corrugated bending place and bottom are square.Increase the area of dissipation of mining transformer after the change, and further prolonged the useful life of mining transformer.

Description of drawings

Fig. 1 is a transformer body structural front view of the prior art;

Fig. 2 is a transformer body structure left view of the prior art;

Fig. 3 is that the A-A of Fig. 2 is to half sectional view;

Fig. 4 is the structural front view of the utility model;

Fig. 5 is the structure left view of the utility model;

Fig. 6 is that the A-A of Fig. 5 is to half sectional view.

Mark among the figure: 1, transformer master chamber; 2, housing tank wall; 3, top arc plate; 4, housing chassis; 5, radiating sheet.

Embodiment

Below in conjunction with accompanying drawing embodiment, the utility model done further describing:

Like Fig. 4,5, shown in 6, the mining transformer of band heat abstractor comprises

transformer master chamber

1, and 1 bottom, transformer master chamber is provided with housing chassis 4; The housing tank wall 2 of 1 side, transformer master chamber, housing tank wall 2 is bent into corrugated, and the top of corrugated bending place and bottom are square; 1 top, transformer master chamber is provided with top arc plate 3, and arc plate 3 tops, top install one group of radiating sheet 5 additional, and all radiating sheets 5 all weld together with top arc plate 3; Radiating sheet 5 thickness are 4mm, and the spacing of each radiating sheet 5 is 46mm.With the 630KVA transformer is example, does not increase before the radiating sheet 5, and the area of dissipation of top arc plate 3 is 1.74 square metres, and area of dissipation is 2.85 square metres after the increase radiating sheet 5, has increased about 64%.

The above; It only is the preferred embodiment of the utility model; Be not to be the restriction of the utility model being made other form, any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every the utility model technical scheme content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection range of the utility model technical scheme according to the technical spirit of the utility model.

Claims

1. the mining transformer of band heat abstractor comprises the housing tank wall of transformer master chamber, transformer master chamber outer surface, the top arc plate of top, transformer master chamber, it is characterized in that: install radiating sheet additional on the arc plate of said top.

2. according to the mining transformer of the described band heat abstractor of claim 1, it is characterized in that: said housing tank wall is bent into corrugated, and the top of corrugated bending place and bottom are square.

3. according to the mining transformer of claim 1 or 2 described band heat abstractors, it is characterized in that: said radiating sheet thickness is 2～5mm.

4. according to the mining transformer of the described band heat abstractor of claim 3, it is characterized in that: said radiating sheet spacing is 30～60mm.