CN216450480U

CN216450480U - Fireproof transformer

Info

Publication number: CN216450480U
Application number: CN202122563910.9U
Authority: CN
Inventors: 陈兰
Original assignee: Shandong Tebian Electric Power Equipment Co ltd
Current assignee: Shandong Tebian Electric Power Equipment Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-05-06
Anticipated expiration: 2031-10-25

Abstract

The utility model relates to the technical field of transformers and discloses a fireproof transformer which comprises a shell, wherein three groups of supporting plates are fixedly connected to the bottom of the shell, two groups of electric fans are fixedly connected to the inner wall of the top of the shell, air holes are formed in the front side and the rear side of the shell, corrugated sheets are fixedly connected to the outer surface of the shell, a group of obliquely arranged heat insulation plates are fixedly connected to the inner walls of the front side and the rear side of the shell, and fixing columns with the left ends and the right ends fixedly connected with the inner wall of the shell are arranged below the heat insulation plates. This transformer of fire prevention, through setting up electric fan and heat insulating board for the electric fan blows downwards, and the heat insulating board guides the air current, thereby makes the air cycle of shell inner wall flow, and passes connecting plate and bleeder vent and external interaction, thereby realizes the cooling to the shell inside, in order to improve the radiating effect of electric fan to the shell inside, thereby reduces the transformer and leads to the probability on fire because of the high temperature, has improved the practicality of device.

Description

Fireproof transformer

Technical Field

The utility model relates to the technical field of transformers, in particular to a fireproof transformer.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, the main components are a primary coil, a secondary coil and an iron core, the main functions are voltage transformation, current transformation, impedance transformation, isolation and voltage stabilization, in the competition that a power generation field should output direct current and alternating current, the alternating current can use the transformer as one of the advantages, the transformer can convert the electric energy into a high-voltage low-current form and then convert the electric energy back, thereby greatly reducing the loss of the electric energy in the transmission process, leading the economic transmission distance of the electric energy to be farther, and being a dry type transformer which is mainly used for small-capacity transformers such as high-rise buildings, high-speed toll stations, local illumination, electronic circuits and the like.

Most of existing dry-type transformers in the market are cooled by a cooling fan or a natural cooling mode, so that the cooling efficiency is low, and the transformers are prone to spontaneous combustion due to overhigh temperature.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a fireproof transformer, which solves the problem that the transformer is easy to spontaneously combust due to overhigh temperature because a heat radiation fan or a natural heat radiation mode is adopted for heat radiation, and the heat radiation efficiency is low.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a fireproof transformer comprises a shell, wherein three support plates are fixedly connected to the bottom of the shell, two groups of electric fans are fixedly connected to the inner wall of the top of the shell, air holes are formed in the front side and the rear side of the shell, corrugated sheets are fixedly connected to the outer surface of the shell, a group of obliquely arranged heat insulation plates are fixedly connected to the inner walls of the front side and the rear side of the shell, a fixing column with the left end and the right end fixedly connected to the inner wall of the shell is arranged below the heat insulation plates, a flame retardant plate is rotatably connected to the outer surface of the fixing column, fire extinguishing sand is placed above the flame retardant plate, three groups of fuse links are fixedly connected to the front sides of the two groups of flame retardant plates, one side, away from the flame retardant plate, of each fuse link is fixedly connected to the bottom of the heat insulation plate, a group of baffle plates and a group of transverse plates are arranged above the flame retardant plate, the bottoms of the baffle are in contact with the top of the flame retardant plate, and the opposite sides of the two groups of transverse plates are fixedly connected to the inner wall of the shell, the bottom fixedly connected with riser of diaphragm, two sets of the opposite side of riser respectively with the offside sliding connection of two sets of baffles, two sets of the bottom of riser offside all is through the inner wall fixed connection of a set of connecting plate with the shell.

Preferably, the front side and the rear side of the shell are fixedly connected with a plurality of groups of rain shielding plates positioned above the air holes, and the included angle between the upper surface of each rain shielding plate and the horizontal plane is thirty degrees.

Preferably, the lower part of the heat insulation plate is fixedly connected with a limiting plate, the bottom of the rear side of the limiting plate is provided with a limiting groove with the diameter equal to that of the fixed column, and the inner wall of the limiting groove is in contact with the top of the flame-retardant plate.

Preferably, the horizontal plane of the top of the transverse plate is lower than the top of the heat insulation plate, and the top of the baffle plate is in contact with the inner wall of the top of the shell.

Preferably, the back opposite sides of the two groups of baffles are fixedly connected with four groups of guide blocks, and the opposite sides of the two groups of vertical plates are provided with guide grooves for the guide blocks to slide.

Preferably, the height of the baffle is greater than the distance from the bottom of the vertical plate to the inner wall of the bottom of the shell, and the connecting plate is a polypropylene filter plate.

(III) advantageous effects

Compared with the prior art, the utility model provides a fireproof transformer, which has the following beneficial effects:

1. this transformer of fire prevention, through setting up electric fan and heat insulating board for the electric fan blows downwards, and the heat insulating board guides the air current, thereby makes the air cycle of shell inner wall flow, and passes connecting plate and bleeder vent and external interaction, thereby realizes the cooling to the shell inside, in order to improve the radiating effect of electric fan to the shell inside, thereby reduces the transformer and leads to the probability on fire because of the high temperature, has improved the practicality of device.

2. This transformer of fire prevention, through setting up fuse link connection heat insulating board and fire-retardant board, fuse link fuses under the high temperature effect when making the device catch a fire because of the high temperature, so that fire-retardant board rotates around the fixed column, so that the sand of putting out a fire drops, thereby put out the intensity of a fire, with the fire prevention effect of realizing the device, and the heat insulating board is isolated to the heat, with the area of being heated that reduces the fuse link, avoid the long-pending heat in fuse link surface to lead to the unexpected fracture of fuse link and influence the normal operating of transformer, the fire prevention effect of device has been improved.

3. This transformer of fire prevention supports the shell through setting up the backup pad, make to have the space between the bottom of shell and the ground, thereby when making ground appear ponding because of the rainfall, the shell can not soak in ponding, avoid the transformer to take place to damage because of soaking, through setting up the baffle, make fire-retardant board rotate the backplate gliding downwards and shelter from the space between riser and the shell bottom inner wall, thereby avoid its inside air of shell to lead to promoting of intensity of a fire still with external circulation after firing.

Drawings

FIG. 1 is a schematic quarter sectional view of the structure of the present invention;

FIG. 2 is a schematic view of the fuse link structure of the present invention;

FIG. 3 is an exploded view of the present invention.

In the figure: 1. a housing; 2. an electric fan; 3. a heat insulation plate; 4. fixing a column; 5. a flame retardant sheet; 6. a limiting plate; 7. a fuse link; 8. a baffle plate; 9. a transverse plate; 10. a vertical plate; 11. a connecting plate; 12. a guide block; 13. a flashing; 14. and a support plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a fireproof transformer comprises a shell 1, wherein three groups of supporting plates 14 are fixedly connected to the bottom of the shell 1, two groups of electric fans 2 are fixedly connected to the inner wall of the top of the shell 1, air holes are formed in the front side and the rear side of the shell 1, corrugated sheets are fixedly connected to the outer surface of the shell 1, a group of obliquely arranged heat insulation plates 3 are fixedly connected to the inner walls of the front side and the rear side of the shell 1, a fixing column 4 with the left end and the right end fixedly connected with the inner wall of the shell 1 is arranged below the heat insulation plates 3, a flame retardant plate 5 is rotatably connected to the outer surface of the fixing column 4, fire extinguishing sand is placed above the flame retardant plate 5, three groups of fuse links 7 are fixedly connected to the front sides of the two groups of flame retardant plates 5, one side, away from the flame retardant plate 5, of the fuse link 7 is fixedly connected with the bottom of the flame retardant plate 3, a group of baffle 8 and a group of transverse plate 9 are arranged above the flame retardant plate 5, the bottom of the baffle 8 is contacted with the top of the flame retardant plate 5, the opposite sides of two sets of diaphragms 9 all with shell 1's inner wall fixed connection, the bottom fixedly connected with riser 10 of diaphragm 9, the opposite side of two sets of risers 10 respectively with the opposite side sliding connection of two sets of baffles 8, the bottom of two sets of risers 10 opposite sides all is through the inner wall fixed connection of a set of connecting plate 11 with shell 1.

Specifically, in order to improve the practicality of the device, the equal fixedly connected with multiunit in both sides is located the dash board 13 of bleeder vent top around shell 1, and the contained angle between the upper surface of dash board 13 and the horizontal plane is thirty degrees for dash board 13 carries out the water conservancy diversion to the rainwater when sleet weather, avoids the rainwater to get into in the shell 1 from the bleeder vent.

Specifically, for the security that improves the device, the below fixedly connected with limiting plate 6 of heat insulating board 3, the spacing groove that diameter and fixed column 4 diameter equal is seted up to the bottom of 6 rear sides of limiting plate, and the inner wall of spacing groove contacts with the top of fire-retardant board 5 for limiting plate 6 supports fire-retardant board 5, so that with 5 horizontal installation of fire-retardant board inside shell 1, avoid having the gap to lead to the sand of putting out a fire to leak down between fire-retardant board 5 and the 1 inner wall of shell.

Specifically, for the stability of the device that improves, the horizontal plane at diaphragm 9 top place is less than the top of heat insulating board 3, and the top of baffle 8 contacts with the top inner wall of shell 1 for baffle 8 gliding back air can not follow diaphragm 9 top and get into shell 1, with the inside air of stopping shell 1 and external mutual, thereby avoid outside air to get into shell 1 and foster the intensity of a fire.

Specifically, in order to plug up the space between riser 10 and the 1 bottom inner wall of shell for baffle 8, four groups of guide blocks 12 of the equal fixedly connected with in the opposite side of two sets of baffles 8, the gliding guide way of confession guide block 12 has all been seted up to the opposite side of two sets of risers 10 for guide block 12 guide way inner wall slides, with the movement track of restriction baffle 8, the baffle 8 of being convenient for slides perpendicularly.

Specifically, in order to reduce the humidity inside the housing 1, the height of the baffle 8 is greater than the distance from the bottom of the vertical plate 10 to the inner wall of the bottom of the housing 1, and the connecting plate 11 is a polypropylene filter plate, so that the polypropylene filter plate adsorbs the moisture in the air, and the humidity of the air inside the housing 1 is reduced.

The working principle is as follows: at the transformer during operation, electric fan 2 blows downwards, so that the inside air of shell 1 flows, in order to reduce the temperature of transformer, when the transformer is on fire because of the high temperature, fuse-link 7 takes place the fusing because of the high temperature, make fire-retardant board 5 not receive fuse-link 7's fixed, thereby make fire-retardant board 5 use fixed column 4 to be the axle center and do the circumferential motion under the action of gravity, then the sand of putting out a fire of fire-retardant board 5 top drops, in order not going out to the intensity of a fire, simultaneously fire-retardant board 5 breaks away from with baffle 8, baffle 8 slides down until baffle 8 supports the bottom inner wall of shell 1 along the surface of riser 10, make baffle 8 shelter from the space between riser 10 bottom and the shell 1 bottom inner wall, so that the inside air of shell 1 stops interacting with the external world, thereby reduce the combustion-supporting effect of oxygen to the intensity of a fire in the air, so as to control the intensity of a fire.

In conclusion, the fireproof transformer is provided with the electric fan 2 and the heat insulation plate 3, so that the electric fan 2 blows downwards, the heat insulation plate 3 guides airflow, air on the inner wall of the shell 1 flows circularly and passes through the connecting plate 11 and the air holes to interact with the outside, the temperature inside the shell 1 is reduced, the heat dissipation effect of the electric fan 2 on the inside of the shell 1 is improved, the probability of fire caused by overhigh temperature of the transformer is reduced, the practicability of the device is improved, the fuse link 7 is connected with the flame retardant plate 5 through the fuse link 7, the fuse link 7 is fused under the action of high temperature when the device fires due to overhigh temperature, the flame retardant plate 5 rotates around the fixed column 4, so that fire extinguishing sand falls, the fire is extinguished, the fireproof effect of the device is realized, and the heat insulation plate 3 isolates heat, so that the heating area of the fuse link 7 is reduced, avoid 7 surperficial accumulated heat of fuse-link to lead to 7 unexpected fracture of fuse-link and influence the normal operating of transformer, the fireproof effect of device has been improved, support shell 1 through setting up backup pad 14, make to have the space between shell 1's the bottom and the ground, thereby make ground when ponding appears because of the rainfall, shell 1 can not soak in ponding, avoid the transformer to take place to damage because of soaking, through setting up baffle 8, make 5 downwardly rotating backplate 8 glides of fire-retardant board and shelter from the space between riser 10 and the 1 bottom inner wall of shell, thereby avoid its inside air of 1 back shell of firing still to lead to promoting of intensity of a fire with external circulation.

The electrical components in the document are electrically connected with an external master controller and 220V mains supply, and the master controller can be a computer or other conventional known devices for playing a role in control.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a transformer of fire prevention, includes shell (1), and bottom fixedly connected with three group's backup pad (14) of shell (1), two sets of electric fan (2) of top inner wall fixedly connected with of shell (1), bleeder vent have all been seted up to both sides around shell (1), and the outer fixed surface of shell (1) is connected with the ripple piece, its characterized in that: the fire-extinguishing and fire-extinguishing shell is characterized in that a group of obliquely arranged heat-insulating plates (3) are fixedly connected to the inner walls of the front side and the rear side of the shell (1), a fixed column (4) with the left end and the right end fixedly connected with the inner wall of the shell (1) is arranged below the heat-insulating plate (3), a fire-extinguishing plate (5) is rotatably connected to the outer surface of the fixed column (4), fire-extinguishing sand is placed above the fire-insulating plate (5), three groups of fuse links (7) are fixedly connected to the front sides of the two groups of fire-insulating plates (5), one side of each fuse link (7) far away from the fire-insulating plate (5) is fixedly connected to the bottom of the heat-insulating plate (3), a group of baffle plates (8) and a group of transverse plates (9) are arranged above the fire-insulating plates (5), the bottoms of the baffle plates (8) are in contact with the tops of the fire-insulating plates (5), and the opposite sides and the backs of the two groups of the transverse plates (9) are fixedly connected to the inner wall of the shell (1), the bottom fixedly connected with riser (10) of diaphragm (9), it is two sets of the opposite side of riser (10) respectively with the back contralateral side sliding connection of two sets of baffles (8), two sets of the bottom of riser (10) back contralateral side all is through the inner wall fixed connection of a set of connecting plate (11) and shell (1).

2. A fire-resistant transformer according to claim 1, characterised in that: the rain shading plate is characterized in that multiple groups of rain shading plates (13) which are positioned above the air holes are fixedly connected to the front side and the rear side of the shell (1), and an included angle between the upper surface of each rain shading plate (13) and the horizontal plane is thirty degrees.

3. A fire-resistant transformer according to claim 1, characterised in that: the lower part of the heat insulation plate (3) is fixedly connected with a limiting plate (6), the bottom of the rear side of the limiting plate (6) is provided with a limiting groove with the diameter equal to that of the fixing column (4), and the inner wall of the limiting groove is in contact with the top of the flame-retardant plate (5).

4. A fire-resistant transformer according to claim 1, characterised in that: the horizontal plane of the top of the transverse plate (9) is lower than the top of the heat insulation plate (3), and the top of the baffle plate (8) is in contact with the inner wall of the top of the shell (1).

5. A fire-resistant transformer according to claim 1, characterised in that: the back opposite sides of the two groups of baffles (8) are fixedly connected with four groups of guide blocks (12), and the opposite sides of the two groups of vertical plates (10) are provided with guide grooves for the guide blocks (12) to slide.

6. A fire-resistant transformer according to claim 1, characterised in that: the height of baffle (8) is greater than the distance of riser (10) bottom to shell (1) bottom inner wall, and connecting plate (11) are the polypropylene filter.