CN111564281A

CN111564281A - Power transformer protection mechanism

Info

Publication number: CN111564281A
Application number: CN202010443063.XA
Authority: CN
Inventors: 王洋; 郑海军; 乔毅立; 薛大龙
Original assignee: Anze Branch Of Shanxi Local Power Co ltd
Current assignee: Anze Branch Of Shanxi Local Power Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-08-21

Abstract

The invention discloses a power transformer protection mechanism which comprises a case, wherein a case door is arranged on the case wall on the front side of the case, cavities are formed in the case walls on the two sides of the case, the two cavities penetrate through the top case wall of the case, two drying plates are vertically and slidably connected in the two cavities, a horizontal water accumulation plate is welded to the upper ends of the two drying plates together, vertical baffle plates are welded to the peripheral edges of the water accumulation plates, and a plurality of first springs are connected between the lower end face of each water accumulation plate and the case wall on the top of the case. According to the invention, the liftable drying plate is arranged in the cavity on the side wall of the case, the air is wet in rainy days, the weight of accumulated water on the water accumulation plate is increased to enable the drying plate to slide downwards, the external wet air is blocked by the drying plate and cannot directly enter the case, the transformer in the case is prevented from being invaded by the wet air, and the service life of the power transformer is prolonged.

Description

Power transformer protection mechanism

Technical Field

The invention relates to the technical field of substation equipment protection devices, in particular to a power transformer protection mechanism.

Background

A power transformer is a stationary electrical device that is used to transform an ac voltage (current) of a certain value into another voltage (current) of the same frequency or different values. The power transformer is necessary equipment for power transmission and distribution and power consumer distribution, the transformer has the functions of increasing voltage to transmit power to a power utilization area and reducing the voltage to various levels of use voltage to meet the power utilization requirement, two losses of voltage and power are inevitably generated in the process of transmitting power of a power system, the voltage loss is inversely proportional to the voltage when the same power is transmitted, and the power loss is inversely proportional to the square of the voltage. The voltage is increased by the transformer, and the power transmission loss is reduced.

In the development of the past ten years, the electric power construction of China is rapidly developed, the using quantity of power transformer equipment is continuously increased, the existing power transformer protection mechanisms are simpler, the simple rainproof and anti-contact functions are realized, the protection mechanisms only achieve the rainproof effect but cannot achieve the dampproof, dustproof and insect-proof effects, the normal work of the transformer is influenced, the service life of the transformer is even shortened, and meanwhile, the power transformer is quite deficient in the aspects of heat dissipation and shock absorption.

Disclosure of Invention

The invention aims to solve the problems that a power transformer protection mechanism in the prior art is simple, lacks the functions of moisture prevention, dust prevention and insect prevention, and is simultaneously very deficient in the aspects of heat dissipation and shock absorption of the power transformer.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a power transformer protection machanism, includes quick-witted case, be equipped with a chamber door on the quick-witted case front side tank wall, the cavity has all been seted up in the both sides tank wall of quick-witted case, two the cavity runs through the top tank wall of quick-witted case, two vertical sliding connection has two drying plates in the cavity, two the common welding of upper end of drying plate has a horizontally ponding board, the welding of the edge all around of ponding board has vertical baffle, be connected with a plurality of first springs between the lower terminal surface of ponding board and the quick-witted roof portion tank wall, ponding board and the quick-witted incasement photovoltaic heat abstractor that is equipped with, be equipped with multi-functional protective structure on the tank wall of quick-witted case.

In foretell power transformer protection machanism, photovoltaic heat abstractor includes the photovoltaic electroplax, the photovoltaic electroplax is installed on the ponding board, be covered with the transparent waterproof board of one deck on the photovoltaic electroplax, the equal baffle sealing connection in all edges around the waterproof board, install two fans on the top inner wall of machine case, be equipped with the wire between photovoltaic electroplax and two fans and communicate it.

In foretell power transformer protection machanism, multi-functional protective structure includes a plurality of covers that shield, seted up a plurality of thermovents on the tank wall between machine incasement wall and the cavity, seted up a plurality of heat extraction mouths on the tank wall between machine incasement wall and the cavity, two a plurality of intercommunication mouths have all been seted up on the drying plate, and are a plurality of shield all welds on the both sides outer wall of machine case, and every shields the cover and corresponds a heat extraction mouth, every establish the one deck dust screen in the heat extraction mouth, every be equipped with the one deck fly net in the heat extraction mouth.

In foretell power transformer protection machanism, transformer case shock attenuation protection device includes the support column, a pit has been seted up at bottom center in the chassis box, the support column is arranged in the pit, the lateral wall sliding connection of support column and pit, the welding of the upper end of support column has a horizontally board of placing, the cover is equipped with a second spring on the support column, the welding of chassis box bottom has four to rotate the seat, place and seted up four sliding trays on the board, every sliding tray sliding connection has a sliding plate, every the lower extreme of sliding plate rotates through the round pin axle and is connected with a connecting rod, every the connecting rod is kept away from the one end of sliding plate and is rotated the seat and be connected through the round pin axle rotation.

In foretell power transformer protection machanism, every the sliding plate upper end is close to the welding of support column direction and has a dead lever, set up a slip chamber in the dead lever, slip chamber sliding connection has a slider, the slider is kept away from sliding plate one side welding and has a slide bar, the slide bar runs through the slip chamber and extends to outside, the slide bar is located the outer one end of slip chamber and has perpendicularly welded a butt plate, the cover is equipped with a third spring on the slide bar.

In the above power transformer protection mechanism, each groove is formed in the groove wall on each of the two sides of the sliding groove, two protruding blocks are welded to the sliding plate close to the two sides of the groove, and the two protruding blocks are respectively arranged in the two measuring grooves and are both connected with the grooves in a sliding manner.

In the above protection mechanism for the power transformer, each sliding groove forms an included angle of 90 degrees with each other, and the positions of the four rotating seats correspond to the positions of the four sliding grooves respectively.

In the above protection mechanism for the power transformer, a protective layer is glued on one side of each of the abutting plates, which is far away from the sliding rod, and the protective layer is made of rubber material.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, the liftable drying plate is arranged in the cavity on the side wall of the case, the air is wet in rainy days, the weight of accumulated water on the water accumulation plate is increased, so that the drying plate slides downwards, the communication port is staggered with the heat dissipation port and the heat dissipation port, the external wet air is blocked by the drying plate and cannot directly enter the case, the transformer in the case is prevented from being invaded by the wet air, the service life of the power transformer is prolonged, after the rainy days, the water on the water accumulation plate is evaporated, the drying plate gradually slides upwards, and the communication port is communicated with the heat dissipation port and the heat dissipation port, so that the heat dissipation of the transformer is facilitated.

2. According to the invention, the photovoltaic panel is arranged on the water accumulation plate, the illumination intensity is high in hot summer, the temperature in the case can be higher, electric energy generated by the photovoltaic panel provides electric power for the fan in the case through the wire to enable the fan to rotate to work, and the heat dissipation effect of the transformer is enhanced by matching with the heat dissipation port and the heat extraction port, so that the power transformer can stably work.

3. According to the invention, the dustproof net is arranged in the heat dissipation port, and the insect-proof net is arranged in the heat dissipation port, so that dust and flying insects can be effectively prevented from entering the case to influence the work of the power transformer, and the service life of the power transformer is prolonged.

4. According to the invention, the damping protection device is arranged at the bottom in the case of the case, the placing plate is lowered by using the self weight of the transformer, so that the sliding plate slides towards the center, at the moment, the third spring is matched with the four abutting plates to fix the power transformer on the placing plate from four directions, the operation is simple, the installation is convenient, the second spring and the supporting plate enable the transformer to be placed stably, and the damping effect is achieved.

Drawings

Fig. 1 is a schematic structural diagram of a protection mechanism of a power transformer according to the present invention;

fig. 2 is a front sectional view of a power transformer protection mechanism according to the present invention;

fig. 3 is an enlarged schematic view of a protection mechanism of a power transformer according to the present invention at a position a;

FIG. 4 is a schematic structural diagram of a transformer damping protection device of a power transformer protection mechanism according to the present invention;

fig. 5 is a schematic diagram of a protection mechanism of a power transformer at position B according to the present invention;

fig. 6 is a structural perspective view of a sliding groove of a power transformer protection mechanism provided by the invention.

In the figure: 1 chassis, 2 box doors, 3 cavities, 4 drying plates, 5 water accumulating plates, 6 photovoltaic electric plates, 7 waterproof plates, 8 first springs, 9 conducting wires, 10 baffles, 11 fans, 12 heat dissipation ports, 13 heat dissipation ports, 14 communication ports, 15 shielding covers, 16 dust screens, 17 insect screens, 18 pits, 19 supporting columns, 20 second springs, 21 placing plates, 22 rotating seats, 23 connecting rods, 24 sliding grooves, 25 grooves, 26 sliding plates, 27 protruding blocks, 28 fixing rods, 29 sliding cavities, 30 sliding rods, 31 sliding blocks, 32 abutting plates, 33 third springs and 34 protective layers.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

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, it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and the following embodiments are only for illustrative purposes and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-6, a power transformer protection mechanism, including quick-witted case 1, be equipped with a chamber door 2 on the tank wall of quick-witted case 1 front side, cavity 3 has all been seted up in the both sides tank wall of quick-witted case 1, two cavities 3 run through the top tank wall of quick-witted case 1, two vertical sliding connection have two drying plates 4 in two cavities 3, the common welding of the upper end of two drying plates 4 has a horizontally ponding board 5, the edge welding all around of ponding board 5 has vertical baffle 10, be connected with a plurality of first springs 8 between the lower terminal surface of ponding board 5 and the tank wall of quick-witted roof portion, be equipped with photovoltaic heat abstractor in ponding board 5 and quick-witted case 1, be equipped with multi-functional protective structure on the tank wall.

Photovoltaic heat abstractor includes photovoltaic electroplax 6, photovoltaic electroplax 6 is installed on ponding board 5, be stamped one deck transparent waterproof board 7 on the photovoltaic electroplax 6, the equal baffle 10 sealing connection in all edges around of waterproof board 7, install two fans 11 on the top inner wall of machine case 1, be equipped with wire 9 between photovoltaic electroplax 6 and two fans 11 and communicate it, in hot summer, the heat is difficult to the effluvium in machine case 1, photovoltaic electroplax 6 turns into the electric energy with light energy, make fan 11 in the machine case 1 rotate, accelerate the heat dissipation.

Multifunctional protective structure includes a plurality of covers 15 that shield, a plurality of thermovents 12 have been seted up on the tank wall between 1 inner wall of machine case and the cavity 3, a plurality of heat extraction mouths 13 have been seted up on the tank wall between 1 outer wall of machine case and the cavity 3, a plurality of intercommunication mouths 14 have all been seted up on two drying plates 4, a plurality of covers 15 that shield all weld on the both sides outer wall of machine case 1, every shields cover 15 and corresponds a heat extraction mouth 13, establish one deck dust screen 16 in every thermovent 12, be equipped with one deck fly net 17 in every heat extraction mouth 13, there is the aperture that makes the circulation of air on the drying plate 4, the humid air of rainy day gets into in the machine case 1 after being drying process when the aperture on drying plate 4, so the rainy day does not influence the heat dissipation in the machine case 1.

The shock absorption protection device of the transformer case comprises a supporting column 19, a pit 18 is formed in the center of the bottom in the case 1, the supporting column 19 is arranged in the pit 18, the supporting column 19 is slidably connected with the side wall of the pit 18, a horizontal placing plate 21 is welded at the upper end of the supporting column 19, a second spring 20 is sleeved on the supporting column 19, four rotating seats 22 are welded at the bottom in the case 1, four sliding grooves 24 are formed in the placing plate 21, a sliding plate 26 is slidably connected in each sliding groove 24, a connecting rod 23 is rotatably connected at the lower end of each sliding plate 26 through a pin shaft, one end of each connecting rod 23, which is far away from the sliding plate 26, is rotatably connected with one rotating seat 22 through a pin shaft, a fixing rod 28 is welded at the upper end of each sliding plate 26, which is close to the supporting column 19, a sliding cavity 29, the sliding block 31 is away from sliding plate 26 one side welding has a slide bar 30, slide bar 30 runs through sliding chamber 29 and extends to outside, slide bar 30 is located sliding chamber 29 outer one end and has perpendicularly welded a resist board 32, the cover is equipped with a third spring 33 on the slide bar 30, every resist board 32 keeps away from slide bar 30 one side face veneer has a protective layer 34, protective layer 34 is made by rubber materials, the protective layer 34 that rubber materials made can strengthen the shock attenuation effect, better plays the guard action to the transformer.

All set up flutedly 25 on the both sides cell wall of every sliding tray 24, every sliding plate 26 has two blocks of protrusions 27 near the welding of recess 25 both sides, and two blocks of protrusions 27 are arranged in two respectively and are surveyed in the recess 25, and all with recess 25 sliding connection, every sliding tray 24 each other becomes 90 contained angles, and four positions of rotating seat 22 are corresponding with four sliding tray 24 positions respectively, and four angles can make the transformer place more firm.

The working principle is as follows: in the invention, a power transformer is arranged on a placing plate 21 in a case 1, the placing plate 21 and a support column 19 are arranged under the power transformer by the self gravity of the power transformer, along with the descending of the placing plate 21, sliding plates 26 in four sliding grooves 24 slide towards the center of the placing plate 21, a third spring 33 and a sliding rod 30 are matched with four abutting plates 32 to fix the power transformer, the air is moist in rainy days, the weight of accumulated water on a water accumulating plate 5 is increased to slide a drying plate 4 downwards, so that a communication port 14 is staggered with a heat radiating port 12 and a heat exhausting port 13, the external moist air can only enter the case 1 after being dried from a small hole on the drying plate 4, the use or damage of the transformer in the case 1 due to the influence of moisture is prevented, the service life of the power transformer is prolonged, the weight of water evaporation on the water accumulating plate 5 is reduced after the rainy days, the drying plate 4 gradually slides upwards, the communication port 14 is communicated with the heat radiating port 12 and the heat exhausting, the photovoltaic panel 6 converts light energy into electric energy, and the fan 11 in the case is powered by the wires 9 to rotate the fan 11.

Although the terms of the cabinet 1, the door 2, the cavity 3, the drying plate 4, the water-collecting plate 5, the photovoltaic panel 6, the waterproof plate 7, the first spring 8, the wire 9, the baffle 10, the fan 11, the heat dissipation opening 12, the heat exhaust opening 13, the communication opening 14, the shielding cover 15, the dust screen 16, the insect-proof net 17, the pit 18, the support column 19, the second spring 20, the placing plate 21, the rotating seat 22, the connecting rod 23, the sliding groove 24, the groove 25, the sliding plate 26, the protruding block 27, the fixing rod 28, the sliding cavity 29, the sliding rod 30, the sliding block 31, the abutting plate 32, the third spring 33, the protective layer 34, and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. A protection mechanism of a power transformer comprises a case (1) and is characterized in that a fan case door (2) is arranged on the case wall on the front side of the case (1), cavities (3) are formed in the box walls on the two sides of the case (1), the two cavities (3) penetrate through the top box wall of the case (1), the two cavities (3) are vertically and slidably connected with two drying plates (4), the upper ends of the two drying plates (4) are welded with a horizontal water accumulation plate (5) together, vertical baffles (10) are welded at the peripheral edge of the water accumulation plate (5), a plurality of first springs (8) are connected between the lower end surface of the water accumulation plate (5) and the box wall at the top of the case, photovoltaic heat dissipation devices are arranged in the water accumulation plate (5) and the case (1), a multifunctional protection structure is arranged on the wall of the case (1), and a shock absorption protection device of the transformer case is arranged in the case (1).

2. The power transformer protection mechanism according to claim 1, wherein the photovoltaic heat dissipation device comprises a photovoltaic panel (6), the photovoltaic panel (6) is installed on the water accumulation plate (5), a transparent waterproof plate (7) is covered on the photovoltaic panel (6), all the peripheral baffles (10) of the waterproof plate (7) are connected in a sealing mode, two fans (11) are installed on the inner wall of the top of the case (1), and a wire (9) is arranged between the photovoltaic panel (6) and the two fans (11) to communicate the photovoltaic panel with the two fans.

3. The power transformer protection mechanism according to claim 1, wherein the multifunctional protection structure comprises a plurality of shielding covers (15), a plurality of heat dissipation ports (12) are formed in a box wall between an inner wall of the case (1) and the cavity (3), a plurality of heat dissipation ports (13) are formed in a box wall between an outer wall of the case (1) and the cavity (3), a plurality of communication ports (14) are formed in two drying plates (4), the plurality of shielding covers (15) are welded to outer walls on two sides of the case (1), each shielding cover (15) corresponds to one heat dissipation port (13), a dust screen (16) is arranged in each heat dissipation port (12), and a layer of insect screen (17) is arranged in each heat dissipation port (13).

4. The protection mechanism of the power transformer according to claim 1, wherein the shock absorption protection device of the transformer box comprises a support column (19), a pit (18) is formed in the center of the bottom of the chassis (1), the support column (19) is arranged in the pit (18), the support column (19) is slidably connected with the side wall of the pit (18), a horizontal placing plate (21) is welded at the upper end of the support column (19), a second spring (20) is sleeved on the support column (19), four rotating seats (22) are welded at the bottom of the chassis (1), four sliding grooves (24) are formed in the placing plate (21), a sliding plate (26) is slidably connected in each sliding groove (24), and a connecting rod (23) is rotatably connected at the lower end of each sliding plate (26) through a pin shaft, one end of each connecting rod (23) far away from the sliding plate (26) is rotatably connected with one rotating seat (22) through a pin shaft.

5. A power transformer protection mechanism according to claim 4, characterized in that a fixed rod (28) is welded at the upper end of each sliding plate (26) in the direction close to the supporting column (19), a sliding cavity (29) is formed in the fixed rod (28), a sliding block (31) is slidably connected to the sliding cavity (29), a sliding rod (30) is welded at one side of the sliding block (31) far away from the sliding plate (26), the sliding rod (30) extends to the outside through the sliding cavity (29), a resisting plate (32) is vertically welded at one end of the sliding rod (30) located outside the sliding cavity (29), and a third spring (33) is sleeved on the sliding rod (30).

6. A power transformer protection mechanism according to claim 4, characterized in that grooves (25) are formed in the two side walls of each sliding groove (24), two protruding blocks (27) are welded on each sliding plate (26) near the two sides of the groove (25), and the two protruding blocks (27) are respectively arranged in the two side grooves (25) and are both connected with the groove (25) in a sliding manner.

7. A power transformer guard mechanism according to claim 4, characterised in that each of said sliding grooves (24) is at an angle of 90 ° to each other, and the positions of four said rotary seats (22) correspond to the positions of four sliding grooves (24), respectively.

8. A power transformer guard mechanism according to claim 5, characterized in that a protective layer (34) is glued to a side of each said resisting plate (32) remote from the slide bar (30), and said protective layer (34) is made of rubber material.