CN202074783U

CN202074783U - Special-purpose copying vacuum drying tank for electric power transformer

Info

Publication number: CN202074783U
Application number: CN2011201271178U
Authority: CN
Inventors: 陈祖文
Original assignee: HENGYANG NANFANG INSTRUMENT TRANSFORMER CO Ltd
Current assignee: HENGYANG NANFANG INSTRUMENT TRANSFORMER CO Ltd
Priority date: 2011-04-27
Filing date: 2011-04-27
Publication date: 2011-12-14
Anticipated expiration: 2021-04-27

Abstract

The utility model relates to a special-purpose copying vacuum drying tank for an electric power transformer. The special-purpose copying vacuum drying tank comprises a tank body, a seal tank cover and heating tubes, and is characterized in that the middle part of the cross section of a cavity of the tank body is rectangular, and two ends of the cross section are arch-shaped, reinforcing ribs are arranged on the outer surface of the tank body, and the heating tubes are evenly installed on the inner wall of the tank body. The shape of the cavity of the tank body is similar to the appearance of the transformer, the transformers are arranged at the corresponding positions in the tank body layer by layer, the bodies of the transformers at different positions can be evenly heated and completely and throughly dried under the vacuum condition, the product drying quality is improved, the medium loss factor is less than 0.3 percent far less than the national standard value of 0.5 percent, and the increment of the medium loss factor is less than 0.3 percent far less than the national standard value of 0.1 percent. The reinforcing ribs arranged on the outer surface of the tank body can be used for solving the problem of deformation of the drying tank under the vacuum condition.

Description

The special-purpose profiling vacuum drying tank of electric power mutual-inductor

Technical field

The utility model relates to a kind of drying equipment, the special-purpose profiling vacuum drying tank of particularly a kind of electric power mutual-inductor.

Background technology

At present, electric power mutual-inductor is generally cylindrical tank with vacuum drying tank, though it is not yielding to be heated under vacuum state, but owing to be subjected to the restriction of cylindrical cavity, product transformer device body is because of the diverse location in tank body, and it is bigger that baking temperature differs, be heated inhomogeneous and cause drying not exclusively, thoroughly or cross fully, thorough excessively, inconsistent with the dielectric dissipation factor of a collection of product, dielectric dissipation factor increment, cause that product is rushed to summit, the probability of explosion accident increases greatly.

Summary of the invention

The purpose of this utility model is in order to overcome above-mentioned weak point, and provides a kind of transformer device to be heated evenly under vacuum state, dry fully, thoroughly, improve the special-purpose profiling vacuum drying tank of electric power mutual-inductor of product drying quality.

The purpose of this utility model is achieved in that the special-purpose profiling vacuum drying tank of electric power mutual-inductor comprises tank body, sealed tank cap, heating tube, the mid portion that it is characterized in that the tank inner chamber cross section is that rectangle, two ends are circular arc, on the tank body outer surface reinforcement is arranged, heating tube evenly is installed on the inner tank wall.

The utility model is owing to adopt above design, the similar transformer profile of tank inner chamber, product transformer branch is placed on relevant position in the tank body, the product transformer device body of diverse location all can be heated evenly under vacuum state, dry complete, thorough, improve the product drying quality, wherein dielectric dissipation factor less than 0.3%, dielectric dissipation factor rises in value less than 0.03%, respectively much smaller than national normal value 0.5%, 0.1%.Reinforcement on the tank body outer surface can solve the problem on deformation of drying chamber under vacuum state.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is a vertical view of the present utility model.

The specific embodiment

Now illustrated embodiment is made detailed description to the utility model in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, the special-purpose profiling vacuum drying tank of electric power mutual-inductor comprises tank body 1, sealed tank cap 2, heating tube 3, the mid portion of tank body 1 inner chamber cross section is that rectangle, two ends are circular arc, on tank body 1 outer surface reinforcement 4 is arranged, be connected with stiffener 5 between the reinforcement 4, heating tube 3 even helical disks are contained on tank body 1 inwall.

Claims

1. the special-purpose profiling vacuum drying tank of an electric power mutual-inductor, comprise tank body (1), sealed tank cap (2), heating tube (3), the mid portion that it is characterized in that tank body (1) inner chamber cross section is that rectangle, two ends are circular arc, on tank body (1) outer surface reinforcement (4) is arranged, heating tube (3) evenly is installed on tank body (1) inwall.

2. the special-purpose profiling vacuum drying tank of electric power mutual-inductor as claimed in claim 1 is characterized in that the even helical disk of heating tube (3) is contained on tank body (1) inwall.