CN114361995A

CN114361995A - Prepackage type transformer substation with protector

Info

Publication number: CN114361995A
Application number: CN202210050316.6A
Authority: CN
Inventors: 王继国
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-04-15

Abstract

The invention provides a prefabricated substation with a protection device, which comprises a box body, a roof and a box door, wherein the inner side of the roof is provided with an inner cavity, partition plates are welded on the inner sides of the box body and the box door, a transformer is installed on the inner side of the box body, pillars are welded on the top and the bottom of the transformer, clamping sleeves are welded on the top and the bottom of the box body, a first spring is sleeved on the outer side of each pillar, an air duct is welded on the top of the box body, a first fan is installed on the inner side of the air duct through a bolt, the prefabricated substation with the protection device can guarantee the heat dissipation efficiency in rainy days, prevent moisture from entering the box body, guarantee the heat dissipation safety of the transformer, enable noise to generate larger attenuation in the box body, prevent the noise from spreading, guarantee the silent operation of a transformer station, facilitate the life of surrounding personnel, and blow off moisture and dust on a mesh belt, the air permeability of guarantee guipure, guarantee radiating efficiency is applicable to voltage conversion and power transmission and uses.

Description

Prepackage type transformer substation with protector

Technical Field

The invention relates to the technical field of pre-installed substation equipment, in particular to a pre-installed substation with a protection device.

Background

The prefabricated substation equipment is called a box type transformer station or a prefabricated substation, and basically has the advantages of small volume, small occupied area, light weight, low manufacturing cost, high reliability, high working safety, convenience in installation and maintenance, long service life and the like, can meet the power supply requirements of residential districts, urban public transformer stations, luxurious cities, urban residential gathering areas, urban public power distribution, street lamp power distribution, industrial mines and other places, on one hand, for the existing prefabricated substation equipment, on the one hand, the heat dissipation safety in rainy days can not be effectively ensured during working, and on the other hand, moisture is easily caused to enter the inner side of the prefabricated substation through a heat dissipation channel in rainy days, and then be unfavorable for the heat dissipation safety of guarantee prepackage type substation equipment, on the other hand, at the during operation, produce certain noise easily, and then cause noise pollution easily, and then influence people's around the life easily, be unfavorable for effectively the production of noise reduction, on the other hand, when carrying out the heat dissipation operation, in order to prevent the entering of dust, need use filtering mechanism to filter the air, cause filtering mechanism to be blockked up by the impurity of air easily, be unfavorable for the guarantee radiating efficiency.

Disclosure of Invention

The invention aims to provide a preassembled transformer substation with a protection device to solve the problems in the background art, and the preassembled transformer substation is novel in structure, multiple in function and suitable for voltage conversion and power transmission.

In order to achieve the purpose, the invention is realized by the following technical scheme: a preassembled transformer substation with a protection device comprises a box body, a roof and a box door, wherein the roof is welded at the top of the box body, the box door is installed at one side of the box body through a hinge, an inner cavity is formed in the inner side of the roof, partition plates are welded on the inner sides of the box body and the box door, a transformer is installed at the inner side of the box body, pillars are welded at the top and the bottom of the transformer, clamping sleeves are welded at the top and the bottom of the box body, springs I are sleeved on the outer side of the pillars, an air duct is welded at the top of the box body, a fan I is installed at the inner side of the air duct through bolts, air pipes are welded at two sides of the air duct, rotating rollers are installed at two sides of the box body, support blocks are welded at the tops of two sides of the box body, a mesh belt is sleeved on the outer side of the rotating rollers, a main roller is installed on the support blocks, and a motor is installed at one side of the main roller, the compression roller is installed at the top of home roll, motor two is installed through the bolt to the inboard of tuber pipe, the bottom welding of tuber pipe has the mouthpiece, the welding of one side of box has the swash plate, loose plate is installed to the inboard of chamber door, install the extension board on the loose plate, the bottom card of chamber door has the bayonet lock, branch is installed to one side of bayonet lock, the top welding of bayonet lock has spring two, the top welding of transformer has the baffle.

As a preferred embodiment of the present invention, the box body is externally connected with a remote switch, the remote switch is connected with the first fan, the second fan and the motor through wires, the pillar is clamped inside the clamping sleeve, and the transformer is connected with the clamping sleeve through the first spring.

As a preferred embodiment of the present invention, both sides of the roof are disposed at the outer side of the bottom of the box body, the top of the box body is provided with an inlet, the inner side of the box body is communicated with the bottom of the roof through the inlet, and the guide plate is welded at one side of the bottom of the inlet.

In a preferred embodiment of the present invention, the bottom of the air duct penetrates through the box body and communicates with the inside of the box body, and the guide plate is welded to the other side of the bottom of the air duct.

As a preferred embodiment of the present invention, the top of the air duct passes through the bottom of the roof and is communicated with the inner cavity, and the width of the two ends of the inner cavity is smaller than the width of the middle part of the inner cavity.

In a preferred embodiment of the present invention, one end of each of the rotary roller, the main roller and the press roller is mounted on the top of the box body through a support block, the other end of each of the rotary roller, the main roller and the press roller is mounted on the bottom of the roof through a support block, and the main roller is mounted on the output shaft of the motor through a bolt.

As a preferred embodiment of the present invention, the compression roller is clamped inside the mesh belt, the main roller is clamped at the bottom of the mesh belt, the top of the box body and the bottoms of the two sides of the roof are sealed by the bottom of the mesh belt, and the mesh belt is a water absorbent cotton mesh belt.

As a preferred embodiment of the present invention, one end of the air pipe is communicated with the inner side of the air duct, the other end of the air pipe passes through the top of the box body and extends to the inner side of the mesh belt, and the mouthpiece is clamped at the top of the mesh belt.

In a preferred embodiment of the present invention, the inclined plates are distributed in a staggered manner inside the box body, the flap is mounted inside the box door through a rotating shaft, and the support plate is mounted at the bottom of the flap through a rotating shaft.

As a preferred embodiment of the present invention, the top of the latch is connected to the inner side of the box door through a second spring, one side of the latch is installed at the bottom end of the supporting rod through a rotating shaft, and the top end of the supporting rod is installed at the bottom of the flap through a rotating shaft.

Compared with the prior art, the invention has the beneficial effects that:

1. when the prefabricated substation with the protection device is used, when the prefabricated substation works, the fan I works, suction force is generated on the left side of the box body through the air duct, air is sucked into the bottom of the roof through a gap between the top of the box body and the bottoms of two sides of the roof, water mist in rainy and foggy days or dust in sunny days is sucked out and guided to the bottom of the roof when heat dissipation work is carried out, net-belt-degree water mist is effectively utilized for absorption, or dust is filtered, moisture is effectively prevented from being sucked into the inner side of the box body, meanwhile, the motor drives the main roller to rotate, the main roller drives the net belt to rotate on the outer side of the rotating roller, and when the net belt sucking moisture moves to the top of the main roller, the moisture is squeezed out by using the pressure between the main roller and the compression roller, so that the dryness of the net belt is effectively ensured, the water absorption work behind the net belt can be ensured, and the air permeability of the net belt is prevented from being influenced by too much moisture sucked, the ventilation efficiency is guaranteed, air is sucked into the top of the right side of the box body through the air opening, flows downwards and bypasses the bottom of the transformer to flow to the left side of the box body, and hot air absorbing heat of the transformer enters the inner cavity through the air duct and flows to the inner cavity through the inner cavity; both sides are blown out, blow off water smoke from the box, reduce the suction of water smoke as far as, reduce the filtration pressure of absorbing water of guipure, can ensure the radiating efficiency in overcast and rainy day effectively, avoid moisture to get into in the box, ensure the heat dissipation safety of transformer.

2. When the prefabricated substation with the protection device is used, when the prefabricated substation works, when airflow flows downwards on the right side of the transformer, the airflow can be continuously guided to the transformer through the movable plate, the flow rate of the air on the variable surface of the transformer is improved, the flow rate of the transformer is improved through the inclined plate on the left side of the transformer, the cooling efficiency of the transformer is improved, meanwhile, the inclined plate, the movable plate and the support plate are blocked, when noise generated during the working of the transformer is outwards transmitted, the noise is greatly attenuated through multiple times of blocking, refraction and reflection, the noise is blocked at the inner side of the box body, the noise is prevented from being transmitted, the silent working performance of a transformer station is guaranteed, the life of surrounding personnel is facilitated, when the prefabricated substation needs to be opened, the clamping pin is downwards moved by the spring two, and the clamping pin drives the movable plate to downwards rotate through the support rod, avoiding the flap to block the opening of the side door and preventing the flap from obstructing the maintenance work of the personnel.

3. This prepackage type transformer substation with protector is when using, when the guipure removed the bottom of tuber pipe, and two follow the inspiratory hot-blasts of sleeve of fan, let in the top of guipure through the tuber pipe to blow off to the guipure through the mouthpiece, make and blow the moisture on the guipure further and blow off, perhaps blow off the dust of guipure bottom, avoid the dust or the accumulation of water smoke effectively and influence the gas permeability of guipure, ensure the required amount of wind of heat dissipation effectively, guarantee radiating efficiency.

Drawings

Fig. 1 is a schematic structural view of a preassembled transformer substation with a protective device according to the present invention;

fig. 2 is a cross-sectional view of a pre-assembled substation with a protective device according to the invention;

fig. 3 is a cross-sectional view of a compression roller of a preassembled transformer substation with a protective device according to the present invention;

fig. 4 is a side cross-sectional view of a mesh belt of a pre-installed substation with a guard according to the present invention;

FIG. 5 is a cross-sectional view of a bayonet of a pre-assembled substation with a guard of the present invention;

in the figure: 1. a box body; 2. a roof; 3. a box door; 4. an inner cavity; 5. a partition plate; 6. a transformer; 7. a pillar; 8. a spring; 9. a first spring; 10. an air duct; 11. a first fan; 12. an air duct; 13. rotating the roller; 14. supporting a block; 15. a mesh belt; 16. a main roller; 17. a motor; 18. a compression roller; 19. a second fan; 20. a mouthpiece; 21. a sloping plate; 22. a flap; 23. a support plate; 24. a bayonet lock; 25. a strut; 26. a second spring; 27. a guide plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 to 5, the present invention provides a technical solution: a preassembled transformer substation with a protection device comprises a box body 1, a roof 2 and a box door 3, wherein the roof 2 is welded at the top of the box body 1, the box door 3 is installed at one side of the box body 1 through a hinge, an inner cavity 4 is formed in the inner side of the roof 2, a partition plate 5 is welded on the inner sides of the box body 1 and the box door 3, a transformer 6 is installed on the inner side of the box body 1, pillars 7 are welded on the top and the bottom of the transformer 6, clamping sleeves 8 are welded on the top and the bottom of the box body 1, a first spring 9 is sleeved on the outer side of each pillar 7, a wind tube 10 is welded on the top of the box body 1, a first fan 11 is installed on the inner side of the wind tube 10 through a bolt, wind pipes 12 are welded on two sides of the wind tube 10, rotating rollers 13 are installed on two sides of the box body 1, support blocks 14 are welded on the top of two sides of the box body 1, and mesh belts 15 are sleeved on the outer sides of the rotating rollers 13, install the home roll 16 on the piece 14, motor 17 is installed to one side of home roll 16, compression roller 18 is installed at the top of home roll 16, two 19 motors are installed through the bolt to the inboard of tuber pipe 12, the bottom welding of tuber pipe 12 has mouthpiece 20, one side welding of box 1 has swash plate 21, loose plate 22 is installed to the inboard of chamber door 3, install extension board 23 on the loose plate 22, the bottom card of chamber door 3 has bayonet lock 24, branch 25 is installed to one side of bayonet lock 24, the top welding of bayonet lock 24 has two 26 springs, the top welding of transformer 6 has baffle 27, can utilize baffle 5 to carry out safety protection to box 1 and chamber door 3 effectively, after box 1 and chamber door 3 are through long-time use, cause the seepage because of factors such as the worm-eaten by corrosion easily, further separation is advanced with the moisture or the insect of seepage through baffle 5, effectively preventing moisture, insects, ants and the like from entering the inner side of the box body and ensuring the safety of the transformer.

In a preferred embodiment of the invention, the box body 1 is externally connected with a remote switch, the remote switch is connected with the first fan 11, the second fan 19 and the motor 17 through wires, the post 7 is clamped at the inner side of the cutting sleeve 8, the transformer 6 is connected with the cutting sleeve 8 through a spring I9, during transportation or installation, large vibration is easily caused, so that the transformer 6 can slide in the clamping sleeve 8 through the support rod 7 and is buffered through the spring I9, the vibration suffered by the transformer 6 is effectively reduced, meanwhile, the vibration generated when the transformer 6 works can be effectively dissolved through the spring I9, the vibration transmitted to the box body 1 when the transformer 9 works is effectively reduced, and then prevent box 1 vibrations, ensure the safety of box 1 and transformer 6, avoid box 1 to produce the noise because of vibrations simultaneously, ensure the silence nature of transformer substation.

In a preferred embodiment of the present invention, both sides of the roof 2 are disposed outside the bottom of the box 1, the top of the box 1 is opened with an inlet, the inside of the box 1 is communicated with the bottom of the roof 2 through the inlet, and the guide plate 27 is welded to one side of the bottom of the inlet.

In a preferred embodiment of the present invention, the bottom of the air duct 10 penetrates through the casing 1 and communicates with the inside of the casing 1, and the guide plate 27 is welded to the other side of the bottom of the air duct 10.

As a preferred embodiment of the present invention, the top of the wind barrel 10 penetrates the bottom of the roof 2 and is communicated with the inner cavity 4, the width of the two ends of the inner cavity 4 is smaller than the width of the middle of the inner cavity 4, when the wind barrel is in operation, the first fan 11 operates to generate suction to the left side of the box 1 through the wind barrel 10, so that air is sucked to the bottom of the roof 2 through the gap between the top of the box 1 and the bottoms of the two sides of the roof, air is sucked to the top of the right side of the box 1 through the wind opening, air flows downwards and flows to the left side of the box 1 by bypassing the bottom of the transformer 6, hot air which absorbs heat of the transformer 6 enters the inner cavity 4 through the wind barrel 10 and is blown out to the two sides through the inner cavity 4, water mist is blown away from the box 1, suction of the water mist is reduced as much as possible, the filtering water absorption pressure of the mesh belt 15 is reduced, and the heat dissipation efficiency in rainy days can be effectively guaranteed, and moisture is prevented from entering the box body 1, so that the heat dissipation safety of the transformer 6 is guaranteed.

In a preferred embodiment of the present invention, the compression roller 18 is clamped inside the mesh belt 15, the main roller 16 is clamped at the bottom of the mesh belt, the top of the box body 1 and the bottom of the roof 2 at both sides are sealed by the bottom of the mesh belt 15, and the mesh belt 15 is a water absorbent cotton mesh belt.

As a preferred embodiment of the present invention, one end of each of the rotary roller 13, the main roller 16 and the press roller 18 is mounted on the top of the box body 1 through the support block 14, the other end of each of the rotary roller 13, the main roller 16 and the press roller 18 is mounted on the bottom of the roof 2 through the support block 14, the main roller 16 is mounted on an output shaft of the motor 17 through a bolt, when the heat dissipation work is performed, after water mist in rainy and foggy weather or dust in sunny weather is sucked to the bottom of the roof 2, the water mist is effectively absorbed by the mesh belt 15, or the dust is filtered, the moisture is effectively prevented from being sucked to the inner side of the box body 1, the motor 17 drives the main roller 16 to rotate, the main roller 16 drives the mesh belt 15 to rotate on the outer side of the rotary roller 13, when the mesh belt 15 sucking the moisture moves to the top of the main roller 16, the moisture is squeezed out by the pressure between the main roller 16 and the press roller 18, the drying performance of the mesh belt 15 is effectively ensured, not only can ensure the subsequent water absorption work, but also can avoid the influence on the air permeability of the water absorption machine due to too much water, and ensure the ventilation efficiency.

As a preferred embodiment of the present invention, one end of the air duct 12 is communicated with the inside of the air duct 10, the other end of the air duct 12 passes through the top of the box 1 and extends to the inside of the mesh belt 15, the blowing opening 20 is clamped at the top of the mesh belt 15, when the mesh belt 15 moves to the bottom of the air duct 12, hot air sucked from the sleeve 10 by the second fan 19 is introduced to the top of the mesh belt 15 through the air duct 12 and blown out to the mesh belt 15 through the blowing opening 20, so that the air blows to further blow off moisture on the mesh belt 15 or blow off dust at the bottom of the mesh belt 15, thereby effectively avoiding the influence of accumulation of dust or water mist on the air permeability of the mesh belt 15, effectively ensuring the air quantity required by heat dissipation, and ensuring the heat dissipation efficiency.

In a preferred embodiment of the present invention, the inclined plates 21 are distributed inside the box body 1 in a staggered manner, the flap 22 is mounted inside the box door 3 through a rotating shaft, and the support plate 23 is mounted at the bottom of the flap 22 through a rotating shaft.

As a preferred embodiment of the present invention, the top of the latch 24 is connected to the inner side of the box door 3 through a second spring 26, one side of the latch 24 is installed at the bottom end of a supporting rod 25 through a rotating shaft, the top end of the supporting rod 25 is installed at the bottom of a movable plate 22 through a rotating shaft, when in operation, when the airflow flows downwards at the right side of the transformer 6, the airflow can be continuously guided to the transformer 6 through the movable plate 22, the flow rate of the air at the variable surface of the transformer 6 is increased, the flow rate of the transformer 6 is increased at the left side of the transformer 6 through a tilted plate 21, the cooling efficiency of the transformer 6 is increased, and simultaneously, through the blocking of the tilted plate 21, the movable plate 22 and the supporting plate 23, etc., when the noise generated during the operation of the transformer 6 is transmitted outwards, the noise is blocked and refracted and reflected for a plurality of times, so that the noise is greatly attenuated, and then the noise is blocked at the inner side of the box body 1, noise is prevented from spreading out, work silence of the transformer station is ensured, life of peripheral personnel is convenient for, the box door 3 is opened as required to make, the bayonet lock 24 is moved down by the second spring 26, and then the bayonet lock 24 drives the movable plate 22 to rotate down through the branch 25, the movable plate 22 is prevented from blocking opening of the box door 3, and the movable plate 22 is prevented from hindering overhaul work of personnel.

The preassembled transformer substation with the protection device supplies electric energy to all electric equipment through an external power supply, when the preassembled transformer substation is transported or installed, large vibration is easily caused, the transformer 6 can slide in the clamping sleeve 8 through the supporting rod 7 and is buffered through the spring I9, the vibration borne by the transformer 6 is effectively reduced, meanwhile, the vibration generated when the transformer 6 works can be effectively relieved through the spring I9, the vibration generated when the transformer 9 works is effectively reduced and is transmitted to the box body 1, further, the vibration of the box body 1 is prevented, the safety of the box body 1 and the transformer 6 is ensured, meanwhile, noise generated by vibration of the box body 1 during the work is avoided, the silent property of the substation is ensured, when the preassembled transformer substation works, the fan I11 works, suction force is generated on the left side of the box body 1 through the air duct 10, and further, air is sucked into the bottom of the roof 2 through a gap between the top of the box body 1 and the bottoms of two sides of the roof, when the heat dissipation work is carried out, after water mist in rain and fog weather or dust in fine weather is sucked to the bottom of the roof 2, the water mist is effectively absorbed by the mesh belt 15, or the dust is filtered, so that moisture is effectively prevented from being sucked to the inner side of the box body 1, meanwhile, the motor 17 drives the main roller 16 to rotate, the main roller 16 drives the mesh belt 15 to rotate at the outer side of the rotating roller 13, after the mesh belt 15 sucking the moisture moves to the top of the main roller 16, the moisture is squeezed out by the pressure between the main roller 16 and the compression roller 18, the dryness of the mesh belt 15 is effectively ensured, the subsequent water absorption work can be ensured, the air permeability is prevented from being influenced due to too much sucked moisture, the ventilation efficiency is ensured, so that the air is sucked to the top at the right side of the box body 1 through an air port, the air flows downwards and flows to the left side of the box body 1 by bypassing the bottom of the transformer 6, and hot air absorbing heat of the transformer 6 enters the inner cavity 4 through the air duct 10, and blows out towards two sides through the inner cavity 4, blows water mist away from the box body 1, reduces the suction of water mist as much as possible, reduces the filtering water suction pressure of the mesh belt 15, can effectively ensure the heat dissipation efficiency in rainy days, avoids the moisture from entering into the box body 1, ensures the heat dissipation safety of the transformer 6, when the mesh belt 15 moves to the bottom of the air pipe 12, the hot air sucked from the sleeve 10 by the fan two 19 is introduced into the top of the mesh belt 15 through the air pipe 12 and blows out towards the mesh belt 15 through the blow-off opening 20, so that the air blows to further blow off the moisture on the mesh belt 15, or blows off the dust at the bottom of the mesh belt 15, effectively avoids the air permeability of the mesh belt 15 from being influenced by the accumulation of the dust or the water mist, effectively ensures the air quantity required by heat dissipation, ensures the heat dissipation efficiency, when the air current flows downwards at the right side of the transformer 6 during the work, the air current can be continuously guided to the transformer 6 through the movable plate 22, improve the flow rate that the air becomes the surface at transformer 6, improve the flow rate of transformer 6 through swash plate 21 in transformer 6's left side, improve the cooling efficiency to transformer 6, simultaneously through swash plate 21, the blockking of loose plate 22 and extension board 23, wait to make transformer 6 during operation produced noise when outwards spreading, through many separation and refraction and reflection, make it produce great decay, and then be blockked the noise in the inboard of box 1, prevent spreading of noise, guarantee transformer station's quiet nature of work, be convenient for peripheral personnel's life, it makes to open chamber door 3 as required, make bayonet lock 24 by spring two 26 downstream, and then make bayonet lock 24 drive loose plate 22 through branch 25 and rotate downwards, avoid loose plate 22 to block opening of chamber door 3, and avoid loose plate 22 to hinder personnel's maintenance work.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a prepackage type transformer substation with protector which characterized in that: the solar energy power generation box comprises a box body (1), a roof (2) and box doors (3), wherein the roof (2) is welded at the top of the box body (1), the box doors (3) are installed at one side of the box body (1) through hinges, an inner cavity (4) is formed in the inner side of the roof (2), partition plates (5) are welded on the inner sides of the box body (1) and the box doors (3), a transformer (6) is installed on the inner side of the box body (1), supporting columns (7) are welded on the top and the bottom of the transformer (6), clamping sleeves (8) are welded on the top and the bottom of the box body (1), springs (9) are sleeved on the outer side of the supporting columns (7), an air duct (10) is welded at the top of the box body (1), a fan (11) is installed on the inner side of the air duct (10) through bolts, air ducts (12) are welded on two sides of the air duct (10), the utility model discloses a roller box, including box (1), change roller (13) is installed to the both sides of box (1), the top emperor's welding of the both sides of box (1) has a piece (14), the outside side cover of changeing roller (13) is equipped with guipure (15), install main roll (16) on piece (14), motor (17) are installed to one side of main roll (16), compression roller (18) are installed at the top of main roll (16), motor two (19) are installed through the bolt to the inboard of tuber pipe (12), the bottom welding of tuber pipe (12) has mouthpiece (20), the welding of one side of box (1) has swash plate (21), loose plate (22) are installed to the inboard of chamber door (3), install extension board (23) on loose plate (22), the bottom card of chamber door (3) has bayonet lock (24), branch (25) are installed to one side of bayonet lock (24), the welding of top of bayonet lock (24) has spring two (26), and a guide plate (27) is welded at the top of the transformer (6).

2. The pre-assembled substation with the protection device according to claim 1, characterized in that: the box body (1) is externally connected with a remote switch, the remote switch is connected with a first fan (11), a second fan (19) and a motor (17) through electric wires, the support column (7) is clamped on the inner side of the clamping sleeve (8), and the transformer (6) is connected with the clamping sleeve (8) through a first spring (9).

3. The pre-assembled substation with the protection device according to claim 1, characterized in that: the two sides of the roof (2) are arranged on the outer side of the bottom of the box body (1), an inlet is formed in the top of the box body (1), the inner side of the box body (1) is communicated with the bottom of the roof (2) through the inlet, and the guide plate (27) is welded on one side of the bottom of the inlet.

4. The pre-assembled substation with the protection device according to claim 1, characterized in that: the bottom of the air duct (10) penetrates through the box body (1) and is communicated with the inner side of the box body (1), and the guide plate (27) is welded to the other side of the bottom of the air duct (10).

5. The pre-assembled substation with the protection device according to claim 1, characterized in that: the top of the air duct (10) penetrates through the bottom of the roof (2) and is communicated with the inner cavity (4), and the width of the two ends of the inner cavity (4) is smaller than that of the middle part of the inner cavity (4).

6. The pre-assembled substation with the protection device according to claim 1, characterized in that: the device is characterized in that one ends of the rotary roller (13), the main roller (16) and the compression roller (18) are all mounted at the top of the box body (1) through a support block (14), the other ends of the rotary roller (13), the main roller (16) and the compression roller (18) are all mounted at the bottom of the roof (2) through the support block (14), and the main roller (16) is mounted on an output shaft of the motor (17) through a bolt.

7. The pre-assembled substation with the protection device according to claim 1, characterized in that: the compression roller (18) is clamped on the inner side of the mesh belt (15), the main roller (16) is clamped on the bottom of the mesh belt, the top of the box body (1) and the bottoms of two sides of the roof (2) are sealed through the bottom of the mesh belt (15), and the mesh belt (15) is a water-absorbing cotton mesh belt.

8. The pre-assembled substation with the protection device according to claim 1, characterized in that: one end of the air pipe (12) is communicated with the inner side of the air duct (10), the other end of the air pipe (12) penetrates through the top of the box body (1) and extends to the inner side of the mesh belt (15), and the blowing opening (20) is clamped at the top of the mesh belt (15).

9. The pre-assembled substation with the protection device according to claim 1, characterized in that: the inclined plates (21) are distributed on the inner side of the box body (1) in a messy mode, the movable plate (22) is installed on the inner side of the box door (3) through a rotating shaft, and the support plate (23) is installed at the bottom of the movable plate (22) through the rotating shaft.

10. The pre-assembled substation with the protection device according to claim 1, characterized in that: the top of the clamping pin (24) is connected with the inner side of the box door (3) through a second spring (26), one side of the clamping pin (24) is installed at the bottom end of the supporting rod (25) through a rotating shaft, and the top end of the supporting rod (25) is installed at the bottom of the movable plate (22) through the rotating shaft.