CN215600184U

CN215600184U - Dustproof and moistureproof dry-type transformer

Info

Publication number: CN215600184U
Application number: CN202121581775.4U
Authority: CN
Inventors: 张福昌; 赵良雄
Original assignee: Sichuan Fulaite Electric Power Equipment Co ltd
Current assignee: Sichuan Fulaite Electric Power Equipment Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-01-21
Anticipated expiration: 2031-07-12

Abstract

The utility model discloses a dustproof and moistureproof dry-type transformer, which mainly solves the problems that the existing dry-type transformer is poor in dustproof effect, and the interior of the existing dry-type transformer is gradually accumulated with dust along with the prolonging of time, so that the transformer is damaged. The dry-type transformer comprises a bottom plate, lifting support legs inserted into four ends of the bottom plate, a supporting base fixedly connected with the lower ends of the lifting support legs, a box body arranged at the upper end of the bottom plate, heat dissipation fans arranged on the inner walls of two sides of the box body and driven by motors, a fan arranged below the bottom plate, an air inlet and an air outlet respectively connected to two ends of the fan, and transformer coils arranged on the bottom plate and in the box body. The transformer device can be installed far away from the ground, and the transformer is prevented from being directly contacted with the wet ground, so that the whole transformer is prevented from being affected with damp. Meanwhile, dust accumulated in the box body can be discharged through the fan, and the dust can be prevented from entering the box body when the fan is not started due to the downward air outlet. Therefore, the method is suitable for popularization and application.

Description

Dustproof and moistureproof dry-type transformer

Technical Field

The utility model relates to a transformer, in particular to a dustproof and moistureproof dry-type transformer.

Background

The distribution transformer is one of important devices in power supply and distribution systems of industrial and mining enterprises and civil buildings, reduces 10(6) kV or 35kV network voltage to 230/400V bus voltage used by users, is suitable for alternating current 50(60) Hz, three-phase maximum rated capacity 2500kVA (single-phase maximum rated capacity 833kVA, generally no single-phase transformer is recommended), can be used indoors or outdoors, can be arranged on a pole when the capacity is 315kVA or below, the ambient temperature is not higher than 40 ℃, not lower than 25 ℃, the maximum daily average temperature is 30 ℃, the maximum annual average temperature is 20 ℃, the relative humidity is not higher than 90% (ambient temperature is 25 ℃), the altitude is not higher than 1000m, and if the capacity is not in accordance with the use conditions, the appropriate rated adjustment is carried out according to relevant regulations of GB 6450-86.

In recent years, dry-type transformers have been developed greatly, the application environment of the dry-type transformers is more and more complex, and the traditional dry-type transformers cannot meet the requirements in areas with high humidity and in environments with high salt mist and smoke dust.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dustproof and moistureproof dry-type transformer, which mainly solves the problems that the existing dry-type transformer is poor in dustproof effect, and the interior of the existing dry-type transformer is gradually accumulated with dust along with the prolonging of time, so that the transformer is damaged.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a dustproof and moistureproof dry-type transformer comprises a bottom plate, lifting support legs inserted into four ends of the bottom plate, a support base fixedly connected with the lower ends of the lifting support legs, a box body arranged at the upper end of the bottom plate, cooling fans arranged on the inner walls of two sides of the box body and driven by a motor, a fan arranged below the bottom plate, an air inlet and an air outlet respectively connected to two ends of the fan, and transformer coils arranged on the bottom plate and in the box body; the transformer coil comprises a coil body, elbow type cable heads are additionally arranged at the head and the tail of the coil body, an annular resin enclosing plate is arranged at the outer side of a tap of the coil, and a dust cover is connected to the annular resin enclosing plate through a hinge.

Furthermore, four ends of the bottom plate are provided with slide holes, and the lifting support legs are inserted in the slide holes in a sliding manner.

Furthermore, a positioning bolt is arranged on a bottom plate outside the sliding hole, and the positioning bolt penetrates through the bottom plate to the sliding hole; and the positioning bolt is in threaded connection with the bottom plate.

Further, the motor bin is welded to the outer walls of the two sides of the box body, the motor is installed in the motor bin through screws, and the rotating shaft of the motor is fixedly connected with the cooling fan.

Further, the annular resin coaming and the coil body are integrally cast.

Further, the dust cover is made of a transparent insulating material.

Compared with the prior art, the utility model has the following beneficial effects:

(1) according to the transformer device, the lifting base, the lifting support legs and the bottom plate are arranged, so that the whole transformer device can be installed far away from the ground, the transformer is prevented from being directly contacted with the wet ground, the whole transformer is prevented from being affected with damp, and the installation height of the bottom plate can be adjusted to adapt to various installation and use environments.

(2) According to the utility model, the cooling fan and the fan are arranged, so that the rapid cooling effect can be achieved, dust accumulated in the box body can be discharged through the fan, and then the dust can be prevented from entering the box body when the fan is not started due to the downward air outlet.

(3) The elbow-type cable heads are additionally arranged at the head and the tail of the transformer coil, so that the head and tail conductors are isolated from the external environment, and the danger of arc discharge of the head conductor caused by the environment and the corrosion caused by the environment are eliminated.

(4) The transformer coil's tap outside sets up annular resin bounding wall to install the dust cover additional through the hinge, the dust cover adopts transparent insulating material preparation, even cover the dust cover like this and also can see the tap gear, the resin bounding wall constitutes airtight space jointly with the dust cover and separates tap and environment, has consequently eliminated the tap conductor because of the danger of the arc discharge that the environment caused and because of the corrosion that the environment caused.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic front view of the coil body according to the present invention.

Fig. 4 is a schematic side view of the coil body according to the present invention.

Wherein, the names corresponding to the reference numbers are:

1-bottom plate, 2-lifting support legs, 3-supporting base, 4-box, 5-motor, 6-radiator fan, 7-fan, 8-air inlet, 9-air outlet, 10-transformer coil, 11-coil body, 12-elbow type cable head, 13-annular resin coaming, 14-hinge, 15-dust cover, 16-slide hole, 17-positioning bolt and 18-motor cabin.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

Examples

As shown in fig. 1 and 2, the dustproof and moistureproof dry-type transformer disclosed by the utility model comprises a bottom plate 1, lifting support legs 2 inserted into four ends of the bottom plate 1, a support base 3 fixedly connected with the lower ends of the lifting support legs 2, a box body 4 arranged at the upper end of the bottom plate 1, a heat dissipation fan 6 which is arranged on the inner walls of two sides of the box body 4 and driven by a motor 5, a fan 7 arranged below the bottom plate 1, an air inlet 8 and an air outlet 9 which are respectively connected with two ends of the fan 7, and a transformer coil 10 which is arranged on the bottom plate 1 and in the box body 4. The motor bin 18 is welded on the outer walls of the two sides of the box body 4, the motor 5 is installed in the motor bin 18 through screws, and the rotating shaft of the motor 5 is fixedly connected with the cooling fan 6. Wherein, fan 7's effect lies in taking out the dust in the box 4, and secondly, the air outlet that sets up down also can avoid the fan not to launch the time dust get into in the box.

In this embodiment, the transformer coil 10 includes the coil body 11, the elbow type cable head 12 is installed on the end to end of the coil body 11 additional, the tap outside of coil sets up annular resin bounding wall 13, be connected with dust cover 15 through hinge 14 on the annular resin bounding wall 13. As shown in fig. 3 and 4, the elbow-shaped cable heads 12 are added to the head and the tail of the dry-type transformer coil body 11, so that the head and the tail of the dry-type transformer coil body are isolated from the external environment, and the danger of arc discharge caused by the environment and the corrosion caused by the environment of the head and the tail of the dry-type transformer coil body are eliminated. An annular resin shroud 13 is provided outside the taps of the transformer coil. Annular resin bounding wall 13 and coil body 11 are poured into a whole to pour into the bounding wall together with one end of hinge 14 when pouring, dust cover 15 is installed additional to the opposite side of hinge, dust cover 15 adopts transparent insulating material preparation, even cover the dust cover and also can see the shunting gear like this, annular resin bounding wall 13 separates tap and environment with airtight space jointly constituteed with dust cover 15, consequently eliminated the tap conductor because of the danger of the arc discharge that the environment caused and because of the corrosion that the environment caused.

In this embodiment, the four ends of the bottom plate 1 are opened with slide holes 16, and the lifting legs 2 are slidably inserted in the slide holes 16. A positioning bolt 17 is arranged on the bottom plate 1 outside the sliding hole 16, and the positioning bolt 17 penetrates through the bottom plate 1 to the sliding hole 16; and the positioning bolt 17 is in threaded connection with the bottom plate 1. During the use, utilize the cooperation of lift stabilizer blade, lift base and bottom plate, can keep away from ground with whole transformer device and install, avoid the transformer direct with moist ground contact to prevent whole transformer from weing, secondly, can also adjust the mounting height of lift stabilizer blade, thereby adapt to multiple installation service environment. Thus, the present invention provides substantial features and improvements over the prior art.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.

Claims

1. A dustproof and moistureproof dry-type transformer is characterized by comprising a bottom plate (1), lifting support legs (2) inserted into four ends of the bottom plate (1), a support base (3) fixedly connected with the lower ends of the lifting support legs (2), a box body (4) arranged at the upper end of the bottom plate (1), cooling fans (6) which are arranged on the inner walls of two sides of the box body (4) and driven by a motor (5), a fan (7) arranged below the bottom plate (1), an air inlet (8) and an air outlet (9) which are respectively connected to two ends of the fan (7), and transformer coils (10) which are arranged on the bottom plate (1) and in the box body (4); transformer coil (10) include coil body (11), it is equipped with elbow type cable head (12) to add on the end to end of coil body (11), the tap outside of coil sets up annular resin bounding wall (13), be connected with dust cover (15) through hinge (14) on annular resin bounding wall (13).

2. The dustproof and moistureproof dry-type transformer according to claim 1, wherein the four ends of the bottom plate (1) are provided with slide holes (16), and the lifting legs (2) are slidably inserted in the slide holes (16).

3. A dust and moisture protected dry transformer according to claim 2, wherein the bottom plate (1) outside the slide hole (16) is provided with a positioning bolt (17), the positioning bolt (17) passes through the bottom plate (1) to the slide hole (16); and the positioning bolt (17) is in threaded connection with the bottom plate (1).

4. A dust-proof and moisture-proof dry-type transformer according to claim 3, wherein the motor compartment (18) is welded on the outer wall of the box (4) at both sides, the motor (5) is installed in the motor compartment (18) through screws, and the rotating shaft of the motor (5) is fixedly connected with the heat dissipation fan (6).

5. A dust and moisture protected dry transformer according to claim 4, in which the annular resin shroud (13) is integrally cast with the coil body (11).

6. A dust and moisture protected dry transformer according to claim 5, where the dust cover (15) is made of a transparent insulating material.