CN110011208B - Bury transformer substation convenient to overhaul - Google Patents
Bury transformer substation convenient to overhaul Download PDFInfo
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- CN110011208B CN110011208B CN201910344724.0A CN201910344724A CN110011208B CN 110011208 B CN110011208 B CN 110011208B CN 201910344724 A CN201910344724 A CN 201910344724A CN 110011208 B CN110011208 B CN 110011208B
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- transformer
- cabinet
- voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/50—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
- H02B7/08—Underground substations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a buried transformer substation convenient to overhaul, which comprises a box body and is characterized in that the box body is of a cuboid structure and comprises 2 long side walls which are symmetrically arranged, 2 short side walls which are symmetrically arranged and 2 top walls and bottom walls which are symmetrically arranged; the top wall is provided with an equipment overhaul port; a transformer, a low-voltage cabinet and a high-voltage cabinet are arranged in the box body; the equipment access hole is arranged vertically above the transformer, and the size of the opening of the equipment access hole is larger than that of the transformer in the overlooking direction; the size of the high-voltage sub-cabinet body in the overlooking direction and the size of the low-voltage sub-cabinet body in the overlooking direction are smaller than the size of the transformer in the overlooking direction; through seting up the equipment access hole at the box top of buried substation, can be very convenient change and need take out in other operations of box to the inside great volumetric electrical equipment of transformer substation box (transformer, high-voltage board and low-voltage cabinet).
Description
Technical Field
The invention relates to the field of electrical equipment, in particular to a buried transformer substation convenient to overhaul.
Background
The transformer substation refers to a place for converting voltage and current, receiving electric energy and distributing electric energy in a power system, and the buried transformer substation refers to a case (box body) of the whole transformer substation buried underground, and meanwhile, electrical elements such as a high-voltage cabinet, a low-voltage cabinet, a transformer and the like are arranged in the box body. The buried transformer substation has relatively small volume, good sealing performance, corrosion resistance, seepage resistance and water printing resistance, and extremely strong extrusion resistance. Meanwhile, the electric elements are placed in the box body to be buried underground, so that the ground can be ensured to have no noise interference.
Compared with the traditional transformer substation, the buried transformer substation is used for burying the box body into the ground, the top of the box body is generally subjected to sealing and waterproof treatment, and only an access opening for an maintainer to access the box body is exposed, but the area of the access opening is not large, only one person can be accommodated in the access opening, and electrical equipment (such as a transformer, a low-voltage cabinet and a high-voltage cabinet) in the box body cannot access the box body from the access opening, so that the electrical equipment (especially larger electrical equipment such as the transformer, the high-voltage cabinet and the low-voltage cabinet) in the box body is replaced or other operations required to be taken out of the box body are very inconvenient.
Disclosure of Invention
The invention mainly aims to provide a buried substation convenient to overhaul, and aims to solve the problem that electrical equipment (particularly larger-size electrical equipment such as a transformer, a high-voltage cabinet and a low-voltage cabinet) in a buried substation box body is inconvenient to replace or other operations needing to be taken out of the box body.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
the buried transformer substation convenient to overhaul comprises a box body, wherein the box body is of a cuboid structure, and comprises 2 long side walls which are symmetrically arranged, 2 short side walls which are symmetrically arranged, and a top wall and a bottom wall which are symmetrically arranged; the top wall is provided with an equipment overhaul port; the transformer substation further comprises a sealing cover capable of covering the equipment access opening;
A transformer, a low-voltage cabinet and a high-voltage cabinet are arranged in the box body; the transformer is detachably fixed on the bottom wall, and the transformer is arranged close to 1 of the 2 short side walls; the high-voltage cabinet and the low-voltage cabinet are respectively arranged close to 2 long side walls and are symmetrically arranged; the high-voltage cabinet consists of a plurality of high-voltage sub-cabinet bodies, and the low-voltage cabinet consists of a plurality of low-voltage sub-cabinet bodies; the size of the opening of the equipment access hole is larger than the size of the transformer in the overlooking direction; the size of the high-voltage sub-cabinet body in the overlooking direction and the size of the low-voltage sub-cabinet body in the overlooking direction are smaller than the size of the transformer in the overlooking direction;
The high-voltage cabinet and the low-voltage cabinet are detachably and electrically connected with the transformer; the high-voltage sub-cabinets are detachably and electrically connected; the low-voltage sub-cabinets are detachably and electrically connected;
The low-voltage sub-cabinet body and the high-voltage sub-cabinet body are connected to the bottom wall through rolling seats; the size of the rolling seat in the overlooking direction is equal to the size of the high-voltage sub-cabinet body or the low-voltage sub-cabinet body in the overlooking direction; the rolling seat comprises a seat body and a roller wheel arranged at the lower part of the seat body; the low-voltage sub-cabinet body and the high-voltage sub-cabinet body are both fixed at the top of the base body; the bottom wall is provided with a rolling groove; the roller can be embedded into the rolling groove in a rolling way, and the seat body is driven to move parallel to the rolling groove in a rolling way;
The opening position of the equipment access opening is set to be that the transformer can be lifted out of the equipment access opening in situ; the size and the opening position of the equipment access opening are set so that any rolling seat can move to the lower part of the equipment access opening, and the rolling seat can be hung on the equipment access opening together with the high-voltage sub-cabinet body or the low-voltage sub-cabinet body.
Preferably, the rolling groove is in a semi-long circular shape, and the semicircular section is arranged close to the transformer; the straight line section of the rolling groove is parallel to the long side wall; the size and the opening position of the equipment access opening are set so that when any rolling seat moves to the center position of the semicircular section of the rolling groove, the rolling seat can be hung on the equipment access opening together with the high-voltage sub-cabinet body or the low-voltage sub-cabinet body.
Preferably, the rolling groove is linear, and two ends of the rolling groove extend to 2 short side walls respectively; the rolling grooves are arranged parallel to the long side walls.
Preferably, the top view shape of the equipment access hole is rectangular, and the top wall is provided with a vertical upward protruding structure around the edge of the equipment access hole; the top view shape of the sealing cover is rectangular, and the sealing cover comprises a cover body and concave grooves arranged at the peripheral edges of the cover body; the concave groove can be nested with the protruding structure; the width of the notch of the concave groove is the same as the thickness of the protruding structure; the width of the notch of the concave groove is set to be 1cm-1.5cm; the notch depth of the concave groove is the same as the height of the protrusion structure from the top wall; the notch depth of the concave groove is set to be 5cm-8cm.
Preferably, the protruding structure is provided with a first bolt hole, and the concave groove is also provided with a second bolt hole which corresponds to the first bolt hole one by one; when the protruding structure is embedded in the concave groove, the first bolt hole and the corresponding second bolt hole are mutually overlapped and communicated; the inner side and the outer side of the protruding structure are respectively provided with a rubber thin gasket in a fitting manner; a circular through hole is formed in the center of the rubber thin gasket; the aperture of the through hole is larger than that of the first bolt hole, and the circle center position of the through hole is overlapped with that of the first bolt hole; the top outside the cover body is also provided with a cover body lifting lug.
Preferably, the top view of the base is rectangular, and the base comprises 2 long sides parallel to each other and 2 short sides parallel to each other; the lower part of the seat body is provided with 4 idler wheels; the 4 rollers are respectively positioned on 2 mutually parallel straight lines, 2 rollers are respectively arranged on each straight line, and each straight line is parallel to the long side edge; the rollers positioned on one of the 2 parallel straight lines correspond to the rollers positioned on the other straight line one by one and are symmetrical to each other; a circle of rubber layers are uniformly arranged on the outer sides of the circumferences of the rollers; the number of the rolling grooves is 4; the depth of the rolling groove is set to be 3-4cm; the width of the notch of the rolling groove is set to be 2-3cm;
The long side edge is provided with a horizontally extending edge in the direction away from the seat body; a plurality of third bolt holes are formed in the edge at equal intervals; the bottom wall is also provided with a plurality of fourth bolt holes which are in one-to-one correspondence with the third bolt holes; when any one of the third bolt holes and the corresponding fourth bolt hole are positioned in the same vertical direction, the other third bolt holes and the corresponding fourth bolt hole are positioned in the same vertical direction; the base body and the bottom wall are fastened through the third bolt hole and the fourth bolt hole corresponding to the third bolt hole, and a preset safety distance is kept between the opening position of the fourth bolt hole closest to the transformer and the transformer.
Preferably, the transformer substation further comprises a ventilation and heat dissipation device; the ventilation and heat dissipation device comprises an air inlet, an air outlet, an air inlet blower, an air outlet blower and an air pipe; the air inlet is formed in the lower part of the short side wall far away from the transformer; the air outlet is formed in the upper part of the short side wall close to the transformer; one end of the air pipe is communicated with the air inlet and is arranged on the outer side of the box body, and the other end of the air pipe is communicated with the air outlet and is arranged on the outer side of the box body; the air pipes are U-shaped and are arranged around the outer sides of the 2 short side walls and the lower part of the bottom wall; an air inlet blower is arranged at a position, close to the air inlet, in the air pipe, and the wind direction of the air inlet blower is set to pump air in the air pipe into the box body; an air outlet blower is arranged at a position, close to the air outlet, in the air pipe, and the wind direction of the air outlet blower is set to pump air in the box body into the air pipe.
Preferably, the air pipe is made of metal; a plurality of radiating fins are arranged on the outer wall of the air pipe in an extending manner in the direction away from the box body; the plurality of radiating fins are arranged at equal intervals; the spacing between the plurality of radiating fins is set to be 10-15cm; the air inlet and the air outlet are embedded with air grids.
Preferably, the low-voltage cabinet and the high-voltage cabinet are both fixed on the top of the base body through bolts; the top parts of the low-voltage cabinet and the high-voltage cabinet are respectively provided with a cabinet body lifting lug, and the transformer is fixed on the bottom wall through bolts; and a transformer lifting lug is arranged at the top of the transformer.
Preferably, the top wall is further provided with a personnel inlet and a personnel outlet at a position far away from the equipment access hole; the top outside the box body is also provided with a push-pull cover plate for covering the personnel inlet and outlet.
Compared with the prior art, the invention has at least the following beneficial effects:
The equipment overhaul port is formed in the top of the box body of the buried transformer substation, so that electrical equipment (a transformer, a high-voltage cabinet and a low-voltage cabinet) with larger volume in the box body of the transformer substation can be replaced very conveniently, and other operations needing to be taken out of the box body can be performed very conveniently;
Specific: when the transformer in the box body needs to be replaced or taken out of the box body, only the sealing cover is required to be opened to expose the equipment access hole, and then the transformer is lifted out of the box body by lifting equipment such as a crane; similarly, when the high-voltage cabinet or the low-voltage cabinet in the box body needs to be replaced or taken out of the box body, the sealing cover is only required to be opened, after the equipment access hole is exposed, the transformer is lifted out of the box body, then the high-voltage cabinet or the low-voltage cabinet is moved to the lower part of the equipment access hole through the movable rolling seat, then the high-voltage sub-cabinet or the low-voltage sub-cabinet which needs to be lifted out is independently detached, and then the high-voltage sub-cabinet or the low-voltage sub-cabinet is lifted out of the box body through lifting equipment such as a crane. The local buried transformer substation is simple in structure, convenient to replace large-volume electrical equipment in the box body or operate in the box body, and easy to manufacture and widely apply.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a buried substation for easy maintenance according to the present invention;
FIG. 2 is a schematic top view of the interior of a case according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a case after opening a sealing cover according to an embodiment of the present invention;
FIG. 4 is a schematic view of a case when a high-voltage or low-voltage cabinet is lifted according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of an equipment access opening according to an embodiment of the present invention;
FIG. 6 is a schematic view of a seal cap according to an embodiment of the present invention;
FIG. 7 is a schematic view of the mating installation of an equipment access port and a seal cover in accordance with an embodiment of the present invention;
FIG. 8 is a schematic perspective view of a rolling seat according to an embodiment of the invention;
FIG. 9 is a schematic diagram illustrating the assembly of the rolling seat with the bottom wall and the high-voltage board according to an embodiment of the present invention;
FIG. 10 is a schematic top view of the interior of a case according to another embodiment of the present invention;
fig. 11 is a schematic top view of a case after opening a sealing cover according to another embodiment of the present invention.
Reference numerals illustrate:
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The invention provides a buried transformer substation convenient to overhaul.
As shown in fig. 1 to 9, a buried substation convenient for maintenance comprises a box body 100, wherein the box body 100 is in a cuboid structure, and the box body 100 comprises 2 long side walls 113 and 2 short side walls 112 which are symmetrically arranged, and a top wall 110 and a bottom wall 111 which are symmetrically arranged; the top wall 110 is provided with an equipment access opening 130; the substation further comprises a sealing cover 140 that can cover the equipment access opening 130.
As shown in fig. 1 to 4, a transformer 200, a low-voltage cabinet 303 and a high-voltage cabinet 300 are arranged in a box body 100; the transformer 200 is detachably fixed on the bottom wall 111, and the transformer 200 is arranged near 1 short side wall 112 of the 2 short side walls 112; the high-voltage cabinet 300 and the low-voltage cabinet 303 are respectively arranged near the 2 long side walls 113 and are symmetrically arranged with each other; the high-voltage cabinet 300 is composed of a plurality of high-voltage sub-cabinets 301, and the low-voltage cabinet 303 is composed of a plurality of low-voltage sub-cabinets 304; the size of the opening of the equipment access opening 130 is larger than the size of the transformer 200 in the top view direction; the dimension of the high-voltage sub-tank 301 in the plan view direction and the dimension of the low-voltage sub-tank 304 in the plan view direction are smaller than the dimension of the transformer 200 in the plan view direction.
The high-voltage cabinet 300 and the low-voltage cabinet 303 are detachably and electrically connected with the transformer 200; the high-voltage sub-cabinets 301 are detachably and electrically connected; the low voltage sub-cabinets 304 are detachably and electrically connected. The interconnecting parts of the cables between the high-voltage cabinet 300 and the transformer 200, between the low-voltage cabinet 303 and the transformer 200, between the high-voltage sub-cabinets 301 and between the low-voltage sub-cabinets 304 of the detachable electric connection fingers are all fixed by adopting detachable connectors, so that the transformer 200, the high-voltage sub-cabinets 301 and the low-voltage sub-cabinets 304 can be detached independently.
As shown in fig. 1-4, the low-voltage sub-cabinet 304 and the high-voltage sub-cabinet 301 are connected to the bottom wall 111 through the rolling seat 400; the size of the rolling seat 400 in the top view direction is equal to the size of the high-voltage sub-cabinet 301 or the low-voltage sub-cabinet 304 in the top view direction; the rolling seat 400 comprises a seat body 401 and a roller 404 arranged at the lower part of the seat body 401; the low-voltage cabinet 303 and the high-voltage cabinet 300 are detachably fixed on the top of the seat 401; the bottom wall 111 is provided with a rolling groove 500; the roller 404 is embedded in the rolling groove 500 in a rolling way, and the rolling way drives the seat 401 to move.
Meanwhile, the opening position of the equipment access hole 130 is set such that the transformer 200 can be hung from the equipment access hole 130 in situ; the size and position of the opening of the equipment access opening 130 are set such that any rolling seat 400 can be moved below the equipment access opening 130, and the rolling seat 400 can be lifted from the equipment access opening 130 together with the high-voltage sub-cabinet 301 or the low-voltage sub-cabinet 304 thereon.
By providing the equipment access hole 130 on the top of the box body 100 of the buried transformer substation, the electrical equipment (the transformer 200, the high-voltage cabinet 300 and the low-voltage cabinet 303) with a larger volume inside the box body 100 of the transformer substation can be replaced very conveniently, and other operations needing to be taken out of the box body 100 can be performed very conveniently.
Specific: as shown in fig. 1 to 4, the rolling groove 500 is linear and extends to 2 short side walls 112 at both ends, respectively; the rolling groove 500 is disposed parallel to the long side wall 113.
At this time, when the transformer 200 in the box 100 needs to be replaced or taken out of the box 100, only the sealing cover 140 needs to be opened to expose the equipment access hole 130, and then the transformer 200 is lifted out of the box 100 by using lifting equipment such as a crane; similarly, as shown in fig. 4, when the high-voltage cabinet 300 or the low-voltage cabinet 303 in the box 100 needs to be replaced or taken out from the box 100, only the sealing cover 140 needs to be opened, after the equipment access hole 130 is exposed, the transformer 200 is lifted out of the box 100, then the high-voltage cabinet 300 or the low-voltage cabinet 303 is moved to the lower part of the equipment access hole 130 by moving the rolling seat 400, and then the high-voltage sub-cabinet 301 or the low-voltage sub-cabinet 304 which needs to be lifted out is lifted out of the box 100 together with lifting equipment such as a lifting machine for the rolling seat. The local buried substation has a simple structure, is convenient to replace large-volume electrical equipment in the box body 100 or to take out the electrical equipment from the box body 100, and is easy to manufacture and widely apply.
As shown in fig. 3 to 5, the top view of the equipment access opening 130 is rectangular in shape, and the top wall 110 is provided with a vertically upward protruding structure 131 around the edge of the equipment access opening 130; as shown in fig. 5, the sealing cap 140 includes a cap body 141 and a concave groove 142 provided at the peripheral edge of the cap body 141; as shown in fig. 6, the concave groove 142 may nest with the protrusion 131; and the width of the notch of the concave groove 142 is the same as the thickness of the protruding structure 131; the notch width of the concave groove 142 is set to 1cm-1.5cm (preferably 1.5 cm); the notch depth of the concave groove 142 is the same as the height of the protrusion 131 from the top wall 110; the notch depth of the concave groove 142 is set to 5cm-8cm (preferably 8 cm).
By arranging the equipment access opening 130 to be rectangular, the transformer 200, the high-voltage cabinet 300 and the low-voltage cabinet 303 can conveniently enter and exit the box body 100; the top wall 110 is provided with the protruding structure 131 around the equipment access hole 130, and then the peripheral equipment of the sealing cover 140 can be matched with the recessed groove 142 nested with the protruding structure 131, so that the sealing performance of the sealing cover 140 and the equipment access hole 130 after matched installation can be ensured, the overall sealing performance of the box body 100 is improved, and the working stability of a transformer substation is facilitated. Meanwhile, in consideration of the external dimensions of the case 100 and the realization of the manufacturing process, the notch width of the above-described concave groove 142 is preferably set to 1.5cm, and the notch depth of the concave groove 142 is preferably set to 8cm.
As shown in fig. 5-7, the protruding structure 131 is provided with first bolt holes 132, and the concave groove 142 is also provided with second bolt holes 143 corresponding to the first bolt holes 132 one by one; when the protruding structure 131 is embedded in the concave groove 142, the first bolt hole 132 and the corresponding second bolt hole 143 are mutually overlapped and communicated; the sealing cover 140 and the equipment access opening 130 can be fastened by bolts when the installation is implemented. The inner side and the outer side of the protruding structure 131 are respectively provided with a rubber thin gasket (not shown) in a fitting manner, and a circular through hole (not shown) is formed in the center of the rubber thin gasket; the aperture of the through hole is larger than that of the first bolt hole, and the circle center position of the through hole is coincident with that of the first bolt hole; the thin rubber gasket is used to promote sealing at the equipment access port 130; the top outside the cover 141 is also provided with a cover lifting lug 144, which is convenient for lifting the sealing cover 140.
As shown in fig. 8, the housing 401 has a rectangular shape in plan view, and the housing 401 includes 2 long sides 402 parallel to each other and 2 short sides 403 parallel to each other; 4 rollers 404 are arranged at the lower part of the seat 401; the 4 rollers 404 are respectively positioned on 2 parallel straight lines, 4 rollers 404 are respectively arranged on each straight line, and each straight line is parallel to the long side 402; the rollers 404 positioned on one of the 2 straight lines parallel to each other and the rollers 404 positioned on the other straight line are in one-to-one correspondence and symmetrical to each other; a circle of rubber layers (not shown) are uniformly arranged on the outer side of the circumference of the roller 404; as shown in fig. 2 to 4, the number of the rolling grooves 500 is 4; the depth of the rolling groove 500 is set to 3-4cm (preferably 3 cm); the slot width of the rolling slot 500 is set to 2-3cm (preferably 3 cm).
Through the above technical scheme, the high-voltage cabinet 300 and the low-voltage cabinet 303 are arranged on the seat 401, and the high-voltage cabinet 300 and the low-voltage cabinet 303 can move in the box body 100.
Referring to fig. 8 and 9, fig. 9 is a schematic diagram illustrating the fitting of the rolling seat 400 with the bottom wall 111 and the high-voltage cabinet 300, and the fitting of the rolling seat 400 with the bottom wall 111 and the low-voltage cabinet 303 is basically consistent with the present drawing, except that the cabinet above the seat 401 is the low-voltage cabinet 303, and the long side 402 is provided with a horizontally extending edge 405 along the direction away from the seat 401, which will not be described in detail below; a plurality of third bolt holes 406 are formed on the edge 405 at equal intervals; the bottom wall 111 is also provided with a plurality of fourth bolt holes 501 which are in one-to-one correspondence with the third bolt holes 406; when any one of the third bolt holes 406 and the corresponding fourth bolt hole 501 are located in the same vertical direction, the other third bolt holes 406 and the corresponding fourth bolt hole 501 are located in the same vertical direction; the base 401 and the bottom wall 111 are fastened by bolts through the third bolt holes 406 and the fourth bolt holes 501 corresponding thereto, and the opening position of the fourth bolt hole 501 closest to the transformer 200 is kept at a preset safety distance from the transformer 200.
During normal operation, the high-voltage cabinet 300 and the low-voltage cabinet 303 are both fixed on the base 401, and the base 401 is fixed on the bottom wall 111 through the third bolt hole 406 and the fourth bolt hole 501 corresponding to the third bolt hole, so that the high-voltage cabinet 300 and the low-voltage cabinet 303 can also keep corresponding preset safety distances with the transformer 200 by keeping preset safety distances between the opening positions of the fourth bolt holes 501 closest to the transformer 200 and the transformer 200, and the corresponding preset safety distances are determined by the actual specific dimensions of the box 100, the transformer 200, the high-voltage cabinet 300 and the low-voltage cabinet 303; the corresponding preset safety distance is set to ensure that the high-voltage cabinet 300 or the low-voltage cabinet 303 is not interfered with the transformer 200 during operation, and heat dissipation is facilitated.
As shown in fig. 1-4, the transformer substation further comprises a ventilation and heat dissipation device; the ventilation and heat dissipation device comprises an air inlet 150, an air outlet 160, an air inlet blower 151, an air outlet blower 161 and an air pipe 170; the air inlet 150 is formed at the lower part of the short side wall 112 far from the transformer 200; the air outlet 160 is formed at the upper part of the short side wall 112 close to the transformer 200; one end of the air pipe 170 is communicated with the outer side of the box body 100 close to the air inlet 150, and the other end of the air pipe 170 is communicated with the outer side of the box body 100 close to the air outlet 160; the air duct 170 is in a "U" shape and is disposed around the outer sides of the 2 short side walls 112 and the lower portion of the bottom wall 111; an air inlet blower 151 is arranged in the air pipe 170 and close to the air inlet 150, and the wind direction of the air inlet blower 151 is set to pump the air in the air pipe 170 into the box body 100; an air outlet blower 161 is arranged in the air pipe 170 and close to the air outlet 160, and the air direction of the air outlet blower 161 is set to pump the air in the box 100 into the air pipe 170.
Through above-mentioned technical scheme, can carry out effectual heat dissipation circulation to the air in the box 100, the concrete circulation route of air is: the inner bottom of the box body 100, the inner top of the box body 100, the air outlet 160, the air outlet blower 161, the air pipe 170, the air inlet blower 151, the air inlet 150 and the inner bottom of the box body 100; the air pipe 170 is arranged around the outer side of the box body 100 and is placed underground, so that the air in the air pipe 170 can be cooled.
As shown in fig. 1-4, the air pipe 170 is made of metal, so that the interactive heat dissipation effect with the underground environment is improved; a plurality of radiating fins 180 are arranged on the outer wall of the air pipe 170 in an extending manner in the direction away from the box body 100; the plurality of heat radiating fins 180 are disposed at equal intervals from each other; the spacing between the plurality of heat radiating fins 180 is set to 10-15cm (15 cm is preferable for both heat radiating performance and manufacturing cost); by arranging the radiating fins 180, the exchange radiating effect of the air pipe 170 and the underground environment is further improved.
In addition, the air inlet 150 and the air outlet 160 are each embedded with an air grill (not shown) to prevent large-sized particulate impurities from entering the air inlet blower 151 or the air outlet blower 161.
Meanwhile, the low-voltage cabinet 303 and the high-voltage cabinet 300 are fixed to the top (not shown) of the preset base 401 by bolts; the tops of the low-voltage cabinet 303 and the high-voltage cabinet 300 are provided with cabinet lifting lugs 302 for convenient hanging. The transformer 200 is fixed to the bottom wall 111 (not shown) by bolts; a transformer lifting lug 201 is provided on the top of the transformer 200 to facilitate lifting.
As shown in fig. 1 and 2, the top wall 110 is further provided with a personnel access opening 120 at a position far away from the equipment access opening 130; the top outside the box 100 is also provided with a push-pull cover plate 121 for covering the personnel access 120; the operator can conveniently enter and exit the case 100 during routine maintenance by providing the operator access 120 and the push-pull cover 121.
As shown in fig. 10 and 11, in another embodiment of the present invention, the rolling groove 500 has a semi-oblong shape, and a semi-circular section is disposed near the transformer 200; the straight line segment of the rolling groove 500 is parallel to the long side wall 113; the size and placement of the openings of the equipment access opening 130 is such that when any one of the rolling seats 400 is moved to the center of the semicircular segment of the rolling channel 500, that rolling seat 400, together with the high-voltage sub-cabinet 301 or the low-voltage sub-cabinet 304 thereon, is suspended from the equipment access opening 130 in situ.
Through the technical scheme, when the low-voltage sub-cabinet 304 or the high-voltage sub-cabinet 301 is required to be lifted out, the transformer 200 is not required to be lifted out first; namely, the hanging-out transformer 200 and the hanging-out low-voltage sub-cabinet 304 or the hanging-out high-voltage sub-cabinet 301 are not interfered with each other, which is more convenient.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (7)
1. The buried transformer substation is characterized in that the box body is of a cuboid structure and comprises 2 long side walls which are symmetrically arranged, 2 short side walls which are symmetrically arranged, and a top wall and a bottom wall which are symmetrically arranged; the top wall is provided with an equipment overhaul port; the transformer substation further comprises a sealing cover capable of covering the equipment access opening;
A transformer, a low-voltage cabinet and a high-voltage cabinet are arranged in the box body; the transformer is detachably fixed on the bottom wall, and the transformer is arranged close to 1 of the 2 short side walls; the high-voltage cabinet and the low-voltage cabinet are respectively arranged close to 2 long side walls and are symmetrically arranged; the high-voltage cabinet consists of a plurality of high-voltage sub-cabinet bodies, and the low-voltage cabinet consists of a plurality of low-voltage sub-cabinet bodies; the size of the opening of the equipment access hole is larger than the size of the transformer in the overlooking direction; the size of the high-voltage sub-cabinet body in the overlooking direction and the size of the low-voltage sub-cabinet body in the overlooking direction are smaller than the size of the transformer in the overlooking direction;
The high-voltage cabinet and the low-voltage cabinet are detachably and electrically connected with the transformer; the high-voltage sub-cabinets are detachably and electrically connected; the low-voltage sub-cabinets are detachably and electrically connected;
The low-voltage sub-cabinet body and the high-voltage sub-cabinet body are connected to the bottom wall through rolling seats; the size of the rolling seat in the overlooking direction is equal to the size of the high-voltage sub-cabinet body or the low-voltage sub-cabinet body in the overlooking direction; the rolling seat comprises a seat body and a roller wheel arranged at the lower part of the seat body; the low-voltage sub-cabinet body and the high-voltage sub-cabinet body are both fixed at the top of the base body; the bottom wall is provided with a rolling groove; the roller can be embedded into the rolling groove in a rolling way, and the seat body is driven to move parallel to the rolling groove in a rolling way;
the opening position of the equipment access opening is set to be that the transformer can be lifted out of the equipment access opening in situ; the size and the opening position of the equipment access opening are set such that any rolling seat can move below the equipment access opening, and the rolling seat can be lifted from the equipment access opening together with the high-voltage sub-cabinet body or the low-voltage sub-cabinet body on the rolling seat in situ;
The rolling groove is in a semi-long circular shape, and the semicircular section is arranged close to the transformer; the straight line section of the rolling groove is parallel to the long side wall; the size and the opening position of the equipment access opening are set so that when any rolling seat moves to the center position of the semicircular section of the rolling groove, the rolling seat can be hung on the equipment access opening together with the high-voltage sub-cabinet body or the low-voltage sub-cabinet body on the rolling seat in situ;
The top view shape of the equipment access hole is rectangular, and the top wall is provided with a vertical upward protruding structure around the edge of the equipment access hole; the top view shape of the sealing cover is rectangular, and the sealing cover comprises a cover body and concave grooves arranged at the peripheral edges of the cover body; the concave groove can be nested with the protruding structure; the width of the notch of the concave groove is the same as the thickness of the protruding structure; the width of the notch of the concave groove is set to be 1cm-1.5cm; the notch depth of the concave groove is the same as the height of the protrusion structure from the top wall; the depth of the notch of the concave groove is set to be 5cm-8cm;
The transformer substation further comprises a ventilation and heat dissipation device; the ventilation and heat dissipation device comprises an air inlet, an air outlet, an air inlet blower, an air outlet blower and an air pipe; the air inlet is formed in the lower part of the short side wall far away from the transformer; the air outlet is formed in the upper part of the short side wall close to the transformer; one end of the air pipe is communicated with the air inlet and is arranged on the outer side of the box body, and the other end of the air pipe is communicated with the air outlet and is arranged on the outer side of the box body; the air pipes are U-shaped and are arranged around the outer sides of the 2 short side walls and the lower part of the bottom wall; an air inlet blower is arranged at a position, close to the air inlet, in the air pipe, and the wind direction of the air inlet blower is set to pump air in the air pipe into the box body; an air outlet blower is arranged at a position, close to the air outlet, in the air pipe, and the wind direction of the air outlet blower is set to pump air in the box body into the air pipe; the circulation path of the air is as follows: the air conditioner comprises a box body inner bottom, a box body inner top, an air outlet blower, an air pipe, an air inlet blower, an air inlet and a box body inner bottom.
2. The buried substation convenient to overhaul as recited in claim 1, wherein said rolling slots are linear and extend to 2 of said short side walls at each end; the rolling grooves are arranged parallel to the long side walls.
3. The buried substation convenient to overhaul as claimed in claim 1, wherein the protruding structure is provided with a first bolt hole, and the concave groove is also provided with a second bolt hole in one-to-one correspondence with the first bolt hole; when the protruding structure is embedded in the concave groove, the first bolt hole and the corresponding second bolt hole are mutually overlapped and communicated; the inner side and the outer side of the protruding structure are respectively provided with a rubber thin gasket in a fitting manner; a circular through hole is formed in the center of the rubber thin gasket; the aperture of the through hole is larger than that of the first bolt hole, and the circle center position of the through hole is overlapped with that of the first bolt hole; the top outside the cover body is also provided with a cover body lifting lug.
4. The buried substation of claim 1, wherein the housing is rectangular in top view and comprises 2 long sides parallel to each other and 2 short sides parallel to each other; the lower part of the seat body is provided with 4 idler wheels; the 4 rollers are respectively positioned on 2 mutually parallel straight lines, 2 rollers are respectively arranged on each straight line, and each straight line is parallel to the long side edge; the rollers positioned on one of the 2 parallel straight lines correspond to the rollers positioned on the other straight line one by one and are symmetrical to each other; a circle of rubber layers are uniformly arranged on the outer sides of the circumferences of the rollers; the number of the rolling grooves is 4; the depth of the rolling groove is set to be 3-4cm; the width of the notch of the rolling groove is set to be 2-3cm;
The long side edge is provided with a horizontally extending edge in the direction away from the seat body; a plurality of third bolt holes are formed in the edge at equal intervals; the bottom wall is also provided with a plurality of fourth bolt holes which are in one-to-one correspondence with the third bolt holes; when any one of the third bolt holes and the corresponding fourth bolt hole are positioned in the same vertical direction, the other third bolt holes and the corresponding fourth bolt hole are positioned in the same vertical direction; the base body and the bottom wall are fastened through the third bolt hole and the fourth bolt hole corresponding to the third bolt hole, and a preset safety distance is kept between the opening position of the fourth bolt hole closest to the transformer and the transformer.
5. The buried substation convenient to overhaul as recited in claim 1, wherein said air duct is made of metal; a plurality of radiating fins are arranged on the outer wall of the air pipe in an extending manner in the direction away from the box body; the plurality of radiating fins are arranged at equal intervals; the spacing between the plurality of radiating fins is set to be 10-15cm; the air inlet and the air outlet are embedded with air grids.
6. The buried substation convenient to overhaul as recited in claim 1, wherein the low-voltage cabinet and the high-voltage cabinet are both fixed to the top of the base body through bolts; the top parts of the low-voltage cabinet and the high-voltage cabinet are respectively provided with a cabinet body lifting lug, and the transformer is fixed on the bottom wall through bolts; and a transformer lifting lug is arranged at the top of the transformer.
7. The buried substation convenient to overhaul as recited in claim 1, wherein said top wall is further provided with a personnel access opening at a location remote from said equipment access opening; the top outside the box body is also provided with a push-pull cover plate for covering the personnel inlet and outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910344724.0A CN110011208B (en) | 2019-04-26 | 2019-04-26 | Bury transformer substation convenient to overhaul |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344724.0A CN110011208B (en) | 2019-04-26 | 2019-04-26 | Bury transformer substation convenient to overhaul |
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| CN110011208A CN110011208A (en) | 2019-07-12 |
| CN110011208B true CN110011208B (en) | 2024-04-19 |
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| CN201910344724.0A Active CN110011208B (en) | 2019-04-26 | 2019-04-26 | Bury transformer substation convenient to overhaul |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110336211A (en) * | 2019-07-15 | 2019-10-15 | 华翔翔能电气股份有限公司 | A kind of intelligent vertical compact box substation |
| CN112038959B (en) * | 2019-12-11 | 2022-09-27 | 东营市东营高新区配售电股份有限公司 | A box-type substation |
| CN111711107B (en) * | 2020-05-09 | 2022-09-09 | 许继三铃专用汽车有限公司 | Centralized maintenance box and electric power operation vehicle with same |
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| CN201541073U (en) * | 2009-06-18 | 2010-08-04 | 上海天灵变压器有限公司 | An environmentally friendly non-metal fully buried flood-proof pre-installed box-type substation |
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| CN209626786U (en) * | 2019-04-26 | 2019-11-12 | 华翔翔能电气股份有限公司 | A kind of burying-terra transformer substation convenient to overhaul |
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| EP0563436A1 (en) * | 1992-03-31 | 1993-10-06 | Betonbau GmbH | Transportable box and its erection method |
| CN201541073U (en) * | 2009-06-18 | 2010-08-04 | 上海天灵变压器有限公司 | An environmentally friendly non-metal fully buried flood-proof pre-installed box-type substation |
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| CN110011208A (en) | 2019-07-12 |
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