CN102842405A - Detachment-free moisture absorber for power transformer - Google Patents

Abstract

The invention belongs to the structural design field of a moisture absorber for a transformer, in particular to a disassembly-free moisture absorber for a power transformer. When replacing the silica gel and insulating oil, the moisture absorber can be completed without disassembling the moisture absorber, which is convenient for on-site maintenance personnel to operate. The connecting flange is connected to the tank body through the upper head, and the bottom of the tank body is connected to the oil cup through the lower head; the upper head is provided with a silica gel inlet, and the lower head is provided with a silica gel outlet; the bottom of the tank body is equipped with The inclined net and the oil cup protection net are connected on the bottom of the tank body, the oil cup is arranged in the oil cup protection net, and the oil cup outlet is connected to the bottom of the oil cup protection net. The invention can conveniently replace silica gel and insulating oil, is safe and labor-saving, greatly reduces the workload of operators, and significantly improves work efficiency. The invention also has the remarkable characteristics of simple and reasonable structure and obvious effect, which is beneficial to extensive popularization and application.

Description

Detachable dehumidifier for power transformer

technical field

The invention belongs to the field of structural design of moisture absorbers for transformers, in particular to a disassembly-free moisture absorber for power transformers. When replacing the silica gel and insulating oil, the moisture absorber can be completed without disassembling the moisture absorber, which is convenient for on-site maintenance personnel to operate.

Background technique

As shown in Figure 1, Figure 1 is a moisture absorber of conventional structure in the prior art. With this structure of the dehumidifier, maintenance personnel need two people to disassemble it from the transformer when replacing the silica gel. One person supports the dehumidifier by hand, and the other unscrews the connecting flange 1. During the operation, it is easy to cause damage to the dehumidifier. At the same time, it is time-consuming and labor-intensive. When the maintenance personnel replace the insulating oil, one person needs to hold the oil cup 6 first to prevent the oil cup 6 from falling off and being damaged; the other person unscrews the fixing screw 5, which will easily cause the oil cup to be damaged during the disassembly process, and is time-consuming and laborious , which brings great inconvenience to the work of maintenance personnel.

Contents of the invention

In order to overcome the above-mentioned defects, the present invention provides a disassembly-free moisture absorber for power transformers, which aims to solve the problem of difficulty in replacing silica gel and insulating oil in conventional moisture absorbers.

The present invention is achieved through the following technical solutions:

The disassembly-free dehumidifier for power transformers includes the connecting flange connected to the tank body through the upper head, and the bottom of the tank body connected to the oil cup through the lower head; There is a silica gel outlet; there is a slanted net at the bottom of the tank body, the oil cup guard net is connected to the bottom of the tank body, the oil cup is set in the oil cup guard net, and the oil cup outlet is connected to the bottom of the oil cup guard net.

The upper part of the oil cup protection net is provided with a top protection pad, and the lower part of the oil cup protection net is provided with a bottom protection pad.

Advantages and beneficial effects: when replacing the silica gel, the present invention does not need to disassemble the moisture absorber, it only needs to open the silica gel outlet to discharge the silica gel, and open the silica gel inlet to add silica gel; when replacing the insulating oil, it is only necessary to unscrew the outlet of the oil cup to take it out Oil Cup. The invention can conveniently replace silica gel and insulating oil, is safe and labor-saving, greatly reduces the workload of operators, and significantly improves work efficiency. It also has the remarkable characteristics of simple and reasonable structure and obvious effect, which is beneficial to extensive popularization and application.

Description of drawings

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is the structural representation of prior art conventional moisture absorber;

Fig. 2 is a structural schematic diagram of the present invention.

In the figure: connecting flange 1, upper head 2, tank body 3, lower head 4, fixing screw 5, oil cup 6, inclined net 7, top pad 8, oil cup protection net 9, bottom pad 10 , Oil cup outlet 11, silica gel inlet 12, silica gel outlet 13.

Detailed ways

The invention is a disassembly-free moisture absorber for a power transformer, which improves the existing moisture absorber. As shown in FIG. 2, FIG. 2 is a schematic structural diagram of the present invention. The connecting flange 1 is connected to the tank body 3 through the upper head 2, and the bottom of the tank body 3 is connected to the oil cup 6 through the lower head 4. On the basis of these existing moisture absorbers, the present invention uses the upper head 2 A silica gel inlet 12 is provided on the top, and a silica gel outlet 13 is added on the lower head 4 of the tank body 3 . The inner bottom of the tank body 3 is provided with an inclined net 7. When replacing the silica gel, it is only necessary to open the silica gel outlet 13 to discharge the silica gel, and open the silica gel inlet 12 to add silica gel.

In the present invention, the oil cup 6 is not clamped on the fixing screw 5, but the oil cup 6 is arranged in the oil cup guard net 9, and the upper part of the oil cup guard net 9 is provided with a top pad 8, and the oil cup guard net 9 The lower part is provided with a bottom pad 10, the top pad 8 and the bottom pad 10 are used to fix the oil cup 6 to prevent the oil cup 6 from shaking, and the oil cup outlet 11 is connected to the bottom of the oil cup guard net 9 through a threaded structure . The whole oil cup guard net 9 is fixed on the tank body 3 by fixing screws 5 . When replacing the insulating oil, the present invention only needs to unscrew the outlet 11 of the oil cup to take out the oil cup 6 to replace the insulating oil, and the operation is very convenient.

Claims (2)

1. The disassembly-free dehumidifier for power transformers, including the connecting flange (1) connected to the tank (3) through the upper head (2), and the bottom of the tank (3) to the oil cup through the lower head (4) (6) connected, characterized in that: the upper head (2) is provided with a silica gel inlet (12), the lower head (4) is provided with a silica gel outlet (13); the inner bottom of the tank body (3) is provided with an inclined The net (7), the oil cup guard net (9) is connected to the bottom outside the tank body (3), the oil cup (6) is arranged in the oil cup guard net (9), and the oil cup outlet (11) is connected to the oil cup The bottom of the guard net (9). 2. The disassembly-free moisture absorber for power transformers according to claim 1, characterized in that: the upper part of the oil cup protection net (9) is provided with a top pad (8), and the oil cup protection net (9) is The lower part is provided with a bottom protective pad (10).

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