A substation with an external transformer

Abstract

The present invention discloses a substation with an external transformer, which includes a transformer part and a prefabricated cabin part. The transformer part is arranged outside the prefabricated cabin part, and there is a certain distance between the two. The transformer part at least includes transformer equipment. The prefabricated cabin has one or more layers, and each layer of the prefabricated cabin is spliced horizontally by a plurality of electrical equipment modules and a plurality of auxiliary function modules divided according to functions. Each electrical equipment module and each auxiliary function module are respectively prefabricated and wired in the factory, and each is used as an independent transportation and installation unit. Each electrical equipment module and each auxiliary function module are installed by means of top hoisting. This substation can improve the degree of factory prefabrication of the prefabricated cabin, achieving the optimal module division, the optimal factory prefabrication, the optimal transportation cost, and the optimal on-site construction.

Description

Technical Field

[0001] The present invention relates to the technical field of substations, and particularly to a substation with an external transformer. Background Art

[0002] Traditional substations are generally in a civil engineering mode and need to be constructed on site, which has disadvantages such as a long construction period, a large impact on the surrounding environment, and a large floor area. With the increasing tension of urban land use and the continuous improvement of the residential density of residents, there are problems such as affecting the normal life of residents and the surrounding living environment when building a new substation in the city center. In addition, there are also problems such as a long construction period, poor environment, difficult construction, and high labor intensity of personnel when building a substation in harsh environments such as high altitudes.

[0003] To solve the above problems, prefabricated substation cabins with a prefabricated cabin structure are widely used. High-voltage equipment, low-voltage equipment, secondary equipment, bus bridges and other electrical equipment are integrated in the prefabricated cabin, and auxiliary equipment such as corridors, suspended ceilings, air ducts, stairs, and air conditioners are also integrated.

[0004] Traditional prefabricated substation cabins mostly adopt a single-layer flat layout or a double-layer layout. When facing a substation scheme with 3 or more main transformers, the floor area is large, and the improvement of factory prefabrication level reaches a bottleneck. Moreover, the current "mu"-shaped separation method and bottom lifting mode of the traditional prefabricated substation cabin can no longer meet the requirements of optimal module division, optimal factory prefabrication, optimal transportation cost, and optimal on-site construction.

[0005] For substations with external transformers, some transformers are exposed, and some transformers are installed in the transformer cabin. The cabin for placing the transformer adopts a bottom lifting installation method during installation, which is not convenient for positioning and fixing between the transformer cabin and the foundation connection parts.

[0006] The above information disclosed in this background art is only used to increase the understanding of the background art of the present application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Invention

[0007] In view of the problems pointed out in the background art, the present invention proposes a substation with an external transformer. The transformer cabin adopts a top lifting and bottom positioning installation method, and this substation can improve the factory prefabrication level of the prefabricated cabin, achieving optimal module division, optimal factory prefabrication, optimal transportation cost, and optimal on-site construction.

[0008] To achieve the above invention purpose, the present invention is implemented by the following technical solutions:

[0009] The present invention provides a substation with an external transformer, including:

[0010] The transformer part and the prefabricated cabin part, the transformer part is arranged outside the prefabricated cabin part, and there is a certain distance between the two;

[0011] The transformer part at least includes transformer equipment;

[0012] The prefabricated cabin has one or more layers, and each layer of the prefabricated cabin is spliced horizontally by a plurality of electrical equipment modules and a plurality of auxiliary function modules divided according to functions;

[0013] Each of the electrical equipment modules and each of the auxiliary function modules are prefabricated and wired in the factory respectively, and each is used as an independent transportation and installation unit;

[0014] Each of the electrical equipment modules and each of the auxiliary function modules are installed by means of top hoisting.

[0015] In some embodiments of the present application, the transformer part further includes a transformer cabin for placing the transformer equipment, the transformer cabin is a box-shaped structure with an open bottom, a hoisting part is provided at the top of the transformer cabin, and the bottom of the transformer cabin is fixed to the foundation connector through a first positioning structure.

[0016] In some embodiments of the present application, the first positioning structure includes a first positioning member and a first guiding member;

[0017] A first guiding column is provided on the first positioning member, and the first positioning member is arranged on the foundation connector;

[0018] A first guiding hole is provided on the first guiding member, and the first guiding member is arranged at the bottom of the transformer cabin;

[0019] The first guiding column is correspondingly inserted into the first guiding hole.

[0020] In some embodiments of the present application, second positioning structures are provided at the bottoms of the electrical equipment modules and the auxiliary function modules;

[0021] Between two adjacent electrical equipment modules, between two adjacent auxiliary function modules, and between adjacent electrical equipment modules and auxiliary function modules, splicing is achieved horizontally through the second positioning structure.

[0022] In some embodiments of the present application, the second positioning structure includes a second positioning member and a second guiding member;

[0023] A plurality of second guiding columns are provided on the second positioning member, a second guiding hole is provided on the second guiding member, and the second guiding member is arranged at the bottoms of the electrical equipment modules and the auxiliary function modules;

[0024] During splicing, install the second positioning member on one of the electrical equipment modules or the auxiliary function modules to be spliced, and insert one of the second guiding columns into the corresponding second guiding hole on the electrical equipment module or the auxiliary function module. Then, insert the second guiding holes on the remaining electrical equipment modules or auxiliary function modules to be spliced into the corresponding second guiding columns.

[0025] In some embodiments of the present application, the electrical equipment module includes:

[0026] An electrical equipment cabin body, inside which there is a support frame barrel structure, and at least one of a busbar channel, a cable channel, and a pressure relief channel is provided in the internal space surrounded by the support frame barrel structure;

[0027] An electrical equipment, which is arranged inside the electrical equipment cabin body.

[0028] In some embodiments of the present application, the auxiliary function module includes a corridor integration module, the bottom of which is provided with a floor and the top is provided with a ceiling, and an air duct and / or a busbar bridge are provided in the space between the ceiling and the top beam of the corridor integration module.

[0029] In some embodiments of the present application, the auxiliary function module further includes a stair environmental control integration module, the inside of which is divided into an environmental control compartment and a stair compartment by a partition structure. An air conditioning device is provided in the environmental control compartment, and a stair is provided in the stair compartment.

[0030] In some embodiments of the present application, the size of each electrical equipment module and each auxiliary function module is a standard modular size;

[0031] The standard modular size = the minimum size of each electrical equipment module and the auxiliary function module + an integer multiple of the reference modular size, and the reference modular size is a preset fixed value.

[0032] Compared with the prior art, the advantages and positive effects of the present invention are:

[0033] The substation disclosed in the present application places the transformer outside, and the transformer cabin body adopts a top-hoisting and bottom-positioning installation method, which greatly improves the on-site installation efficiency.

[0034] The prefabricated cabin part of the present application divides the electrical equipment module and the auxiliary function module according to functions, and the electrical equipment module and the auxiliary function module can be arbitrarily combined and arranged according to user needs.

[0035] Both the electrical equipment module and the auxiliary function module are prefabricated and wired in the factory respectively, and then transported to the customer site as a transportation unit, and then spliced as an independent installation unit, which greatly improves the degree of factory prefabrication of the prefabricated cabin, and realizes the optimal module segmentation, the optimal factory prefabrication, the optimal transportation cost, and the optimal on-site construction.

[0036] One form of the electrical equipment module in this application only includes electrical equipment and does not include other auxiliary function modules such as corridors. Another form includes electrical equipment and corridor modules. Their common feature is that the electrical equipment is highly integrated in the same cabin, and prefabrication and wiring are completed in the factory. The sound production quality inspection mechanism inside the factory effectively guarantees the product quality and avoids the technical problems of large on-site wiring workload and difficult wiring quality control in the prior art.

[0037] The support structure in the electrical equipment module not only plays a role in improving the structural strength, but also integrates the functions of wire routing and pressure relief, which helps to improve the internal structural compactness and further reduce the floor area of the cabin.

[0038] This application standardizes the interfaces between modules, the module sizes are standardized and modularized, making each module have strong interchangeability and the feasibility of factory prefabrication.

[0039] The size of each electrical equipment module and each auxiliary function module is a standard modular size. By setting the standard modular size, the module can conveniently and quickly meet the expansion of substation equipment and the increase in the space for operation and maintenance and repair by increasing the number of modules, while reducing the types of modules.

[0040] In this application, each module adopts the method of top hoisting and bottom positioning to achieve rapid splicing and installation, improving the on-site installation efficiency and reliability.

[0041] After reading the specific implementation manners of the present invention in conjunction with the drawings, other features and advantages of the present invention will become clearer. Brief Description of the Drawings

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0043] Figure 1 It is a schematic structural diagram of the transformer part in a substation according to an embodiment, including a transformer device and a transformer cabin.

[0044] Figure 2Schematic diagram of the structure of the transformer section in a substation containing only transformer equipment according to an embodiment;

[0045] Figure 3 Schematic diagram of a layout scheme of a modular prefabricated cabin according to an embodiment;

[0046] Figure 4 Schematic diagram of another layout scheme of a modular prefabricated cabin according to an embodiment;

[0047] Figure 5 Schematic diagram of another layout scheme of a modular prefabricated cabin according to an embodiment;

[0048] Figure 6 The "mu" - shaped segmentation method of each module in a prefabricated cabin in the prior art;

[0049] Figure 7 The segmentation method of a prefabricated cabin according to modules in an embodiment;

[0050] Figure 8 Schematic diagram of the structure of an electrical equipment module according to an embodiment;

[0051] Figure 9 Schematic diagram of the structure of a support structure according to an embodiment;

[0052] Figure 10 For Figure 9 Schematic diagram of the structure after omitting the first side seal plate of the shown structure;

[0053] Figure 11 Sliding installation structure between an electrical equipment and a base according to an embodiment;

[0054] Figure 12 Horizontal splicing structure between two adjacent modules according to an embodiment;

[0055] Figure 13 For Figure 12 Enlarged view of part J in;

[0056] Figure 14 For Figure 13 Exploded view of the shown structure;

[0057] Figure 15 Schematic diagram of the structure of a positioning member according to an embodiment;

[0058] Figure 16 Schematic diagram of the structure when two modules at the end are spliced vertically according to an embodiment;

[0059] Figure 17 Top view of a single module of a prefabricated cabin according to an embodiment;

[0060] Figure 18 ForFigure 17 Front elevation view of the structure shown in the direction A;

[0061] Figure 19 is Figure 17 Cross-sectional view of the structure shown in the direction A-A;

[0062] Figure 20 Another layout schematic diagram of the partition structure according to the embodiment;

[0063] Figure 21 is Figure 20 Front elevation view of the structure shown in the direction B;

[0064] Figure 22 is Figure 20 Cross-sectional view of the structure shown in the direction B-B;

[0065] Figure 23 Schematic diagram of the fixing structure for stacking the cabins up and down according to the embodiment;

[0066] Figure 24 Fixing structure for stacking the cabins up and down according to the embodiment;

[0067] Figure 25 Exploded view of the fixing structure for stacking the cabins up and down according to the embodiment;

[0068] Figure 26 Schematic diagram of the structure of the corridor integration module according to the embodiment;

[0069] Figure 27 Top view of the stair environmental control integration module according to the embodiment.

[0070] Reference numerals:

[0071] 10 - Prefabricated cabin part, 11 - Corridor;

[0072] 20 - Transformer part, 21 - Transformer equipment, 22 - Transformer cabin;

[0073] 100 - Cabin, 110 - Base, 120 - Top beam, 130 - Support frame tube structure, 131 - Support frame wall, 132 - Connecting beam, 1321 - First connecting beam, 1322 - Second connecting beam, 133 - Angle support plate, 141 - Bus duct, 142 - Wiring duct, 143 - Pressure relief duct, 150 - Cable support, 151 - Fixing hole, 161 - First side seal plate, 162 - Second side seal plate, 1621 - Opening, 170 - Door body, 180 - Removable seal plate, 181 - First removable seal plate, 182 - Second removable seal plate, 190 - Hoisting ring;

[0074] 200 - Electrical equipment;

[0075] 300 - positioning structure, 310 - positioning member, 311 - substrate, 312 - connecting portion, 313 - positioning post, 314 - first connection hole, 320 - guiding member, 321 - guiding hole, 322 - second connection hole, 330 - bolt;

[0076] 410 - slide rail, 420 - plastic wing nut;

[0077] 500 - hoisting portion;

[0078] 600 - partition structure, 610 - split escape door partition, 611 - first doorframe, 612 - double - leaf door, 620 - double - acting single - leaf door closer door partition, 621 - second doorframe, 622 - double - acting single - leaf door closer door, 630 - support - type partition, 631 - support frame;

[0079] 700 - fixing structure, 710 - first fixing beam, 720 - second fixing beam, 721 - arc - shaped bending portion, 730 - anti - rotation fixing portion, 731 - anti - rotation member, 7311 - first abutting wall, 7312 - second abutting wall, 732 - nut, 740 - fastener, 750 - gasket;

[0080] 800 - corridor integration module, 810 - floor, 820 - ceiling, 830 - air duct, 831 - air outlet, 840 - busbar bridge;

[0081] 900 - stair environmental control integration module, 910 - environmental control compartment, 911 - air - conditioning equipment, 920 - stairwell compartment, 921 - stair;

[0082] R - unit module, R1 - electrical equipment module, R2 - corridor module;

[0083] M1 - first module;

[0084] M2 - second module;

[0085] K1 - lower - layer module;

[0086] K2 - upper - layer module;

[0087] W1 - depth direction of the cabinet; W2 - width direction of the cabinet;

[0088] H - demarcation line between the upper - layer module and the lower - layer module.

[0089] S - segmentation line between modules in the same - layer prefabricated cabin. Specific embodiments

[0090] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0091] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0092] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0093] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0094] In the present invention, unless otherwise clearly defined and limited, the fact that the first feature is "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the fact that the first feature is "above", "above" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The fact that the first feature is "below", "below" and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is lower than that of the second feature.

[0095] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0096] [Substation, transformer part]

[0097] This embodiment discloses a substation with an external transformer. Referring to Figure 1 and Figure 2 , the substation includes a transformer part 20 and a prefabricated cabin part 10. The transformer part 20 is arranged outside the prefabricated cabin part 10, and there is a certain distance between the two, which is convenient for the maintenance and inspection of the equipment.

[0098] Figure 1 In Figure 2 , the transformer part 20 only includes a transformer device 21;

[0099] In

[0100] [Prefabricated cabin part]

[0101] The prefabricated cabin part is a modular prefabricated cabin. The prefabricated cabin can be one layer, as shown in Figure 3 ; it can also be multiple layers, such as shown in Figure 4 and Figure 5 , Figure 4 and Figure 5 are two different forms of three-layer layout methods.

[0102] Each layer of the prefabricated cabin is formed by horizontally splicing a plurality of electrical equipment modules and a plurality of auxiliary function modules divided according to functions.

[0103] Each electrical equipment module and each auxiliary function module are respectively prefabricated and wired in the factory, and each is used as an independent transportation and installation unit.

[0104] Each electrical equipment module and each auxiliary function module are installed by top lifting.

[0105] The electrical equipment module is the core module of the prefabricated cabin, which integrates the main electrical equipment of the substation, such as high-voltage equipment, medium-voltage equipment, low-voltage equipment, secondary equipment, bus bridges, etc.

[0106] The electrical equipment module can be a high-voltage equipment module, a medium-voltage equipment module, a low-voltage equipment module, a secondary equipment module, etc.

[0107] The auxiliary function module is a non-core module of the prefabricated cabin, which integrates the auxiliary equipment and functions of the substation, such as corridors, stairs, lighting, air conditioning, air ducts, floors, wall panels, suspended ceilings, etc.

[0108] The auxiliary function module can be a corridor module, a stair module, an environmental control module, etc.

[0109] The electrical equipment module and the auxiliary function module can be freely combined and arranged according to user needs.

[0110] This application divides the electrical equipment module and the auxiliary function module according to functions.

[0111] One form of the electrical equipment module in this application only includes electrical equipment and does not include other auxiliary function modules such as corridors. Another form includes electrical equipment and corridor modules. Their common feature is that the electrical equipment is highly integrated in the same module cabin, and prefabrication and wiring are completed in the factory. The sound production quality inspection mechanism in the factory effectively guarantees the product quality and avoids the technical problems of large on-site wiring workload and difficult wiring quality control in the prior art.

[0112] Similarly, the auxiliary function module can highly integrate the structures for realizing auxiliary functions in the same module cabin, and complete prefabrication and wiring in the factory.

[0113] The setting of the electrical equipment core module and the auxiliary function non-core module can bring the following beneficial effects:

[0114] The traditional segmentation method of the prefabricated cabin is in a "mu" shape. Taking Figure 9 one of the layout methods of the single-layer prefabricated cabin shown as an example for "mu" shape segmentation, among the multiple modules formed by the segmentation, except for the unit module R on the side only including corridor 11, each of the other unit modules R includes electrical equipment 200 and corridor 11. The "mu" shape segmentation method makes these electrical equipments in different segmented modules, resulting in the fact that the primary and secondary connections between equipments can only be completed after on-site cabin splicing. The on-site workload is large, the equipment integration degree is not high, and the quality problems are difficult to control.

[0115] This application adopts a new form of division according to functional modules. Figure 7 , each row of corridors 11 is divided into an independent corridor module R2, and each row of electrical equipment 200 is divided into an independent electrical equipment module R1, so that the electrical equipment 200 is highly integrated in the same electrical equipment module R1, and the production and assembly of each electrical equipment module R1 and corridor module R2 are first completed in the factory, and then the unit modules are transported to the customer site for splicing, which greatly reduces the workload at the customer site and improves the on-site assembly efficiency.

[0116] Figure 7 Only one specific layout method of the prefabricated cabin including the electrical equipment 200 and the corridor 11 is shown. In actual application, electrical equipment modules with different functions (such as high-voltage electrical equipment modules, medium-voltage electrical equipment modules, low-voltage electrical equipment modules, etc.) and auxiliary function modules (such as corridor modules, staircase modules, environmental control modules, etc.) can be arbitrarily combined according to customer needs to achieve the effects of optimal segmentation, optimal factory prefabrication, optimal transportation cost, and optimal on-site construction.

[0117] The present application standardizes the interfaces between modules, standardizes and modularizes the module sizes, so that the modules have strong interchangeability and the feasibility of factory prefabrication.

[0118] The size of each electrical equipment module and each auxiliary function module is a standard modular size. Through the setting of the standard modular size, the module can be easily and quickly increased by increasing the number of modules to meet the needs of substation equipment expansion and operation and maintenance space increase, while reducing the types of modules.

[0119] Standard module size = minimum size of each electrical equipment module and auxiliary function module + integer multiple of the reference module size. The reference module size is a pre-set fixed value. The reference module is calculated based on the actual size of the prefabricated cabin and substation.

[0120] The introduction of standard modules and benchmark modules makes the cabin shape standardized to the greatest extent possible, thus realizing the prefabricated production of modules.

[0121] In some embodiments of the present application, a plurality of symmetrically arranged hoisting parts are provided on the top of each electrical equipment module and each auxiliary function module, so that a top hoisting installation method of each module is also realized.

[0122] In conjunction with the top hoisting method, a positioning structure 700 is installed at the bottom of each module to achieve rapid positioning and splicing of each module, thereby improving on-site installation efficiency and reliability. The specific structure of the positioning structure 700 will be described in detail below.

[0123] In some embodiments of the present application, each module (electrical equipment module and auxiliary function module) includes a cabin body 100, which is composed of a base 110 and a top beam 120 to form a cabin frame. According to the different requirements of the module, different types and structures of support structures are provided between the base 110 and the top beam 120.

[0124] [Electrical equipment core module, support frame tube structure]

[0125] Regarding the specific structure of the electrical equipment module, in some embodiments of the present application, referring to Figure 8 , the electrical equipment module includes a cabin body 100 and electrical equipment 200 disposed inside the cabin body 100.

[0126] The cabin body 100 is a frame structure welded and assembled from profiles and / or plates. Inside the cabin body 100, a vertical support frame tube structure 130 is provided. At least one of a busbar channel 141, a cable channel 142, and a pressure relief channel 143 is provided in the internal space surrounded by the support frame tube structure 130.

[0127] The electrical equipment module composed of the cabin body 100 and the electrical equipment 200 is transported to the customer site as an independent transportation unit to complete the splicing with other electrical equipment modules or auxiliary function modules.

[0128] The support frame tube structure 130 not only plays a role in improving the overall structural strength of the cabin body 100, but also integrates the functions of wire routing and pressure relief, which helps to improve the internal structural compactness of the cabin body 100 and further reduces the floor area of the cabin body.

[0129] The busbar channel 141, the cable channel 142, and the pressure relief channel 143 are reasonably selected and configured according to the type of electrical equipment 200 installed inside the cabin body 100. For example, the pressure relief channel 143 is only required to be configured when medium-voltage equipment is installed inside the cabin body 100.

[0130] It should be noted that the entire internal space surrounded by the support frame tube structure 130 can be regarded as a cable channel.

[0131] When the prefabricated cabin has a multi-layer layout, the installation spaces on the support frame tube structures 130 of the upper and lower layers are connected, which is convenient for wire routing of electrical equipment between the upper and lower cabin bodies, and is more conducive to the assembly of the modular prefabricated cabin, improving the production and assembly efficiency.

[0132] According to the length of the cabin body 100, multiple support frame tube structures 130 can be provided along the length direction of the cabin body 100 to meet the strength support requirements. Figure 8 In the shown structure, there are three support frame tube structures 130, and the electrical equipment 200 is disposed between two adjacent support frame tube structures 130.

[0133] For the specific structure of the cabin body 100, in some embodiments of the present application, refer to Figure 8 , the support frame barrel structure 130 is connected between the base 110 and the top beam 120 of the cabin body, and the electrical equipment 200 is slidably arranged on the base 110.

[0134] Taking medium and low voltage electrical equipment as an example, refer to Figure 7 , the dimension W1 of the electrical equipment 200 in the cabinet depth direction is generally fixed, while the cabinet width dimension W2 of the electrical equipment 200 is variable. The electrical equipment 200 can slide along the cabinet width W2 direction to realize the position adjustment of each electrical equipment 200, which is convenient for installation.

[0135] For the specific structure of the sliding installation of the electrical equipment, in some embodiments of the present application, refer to Figure 11 , a slide rail 410 is provided on the base 110. The slide rail 410 extends along the cabinet width W2 direction of the electrical equipment. The bottom of the cabinet body of the electrical equipment 200 is slidably arranged in the slide rail 410 through a plastic wing nut 420. By sliding the plastic wing nut 420 along the slide rail 410, the sliding adjustment of the electrical equipment 200 is realized.

[0136] The top beam 120 integrates ceiling decoration (not shown). The ceiling decoration includes an installation beam and a ceiling decorative board. The installation beam is fixed to the frame of the top beam 120. The ceiling decorative board adopts a modular design. It is first assembled into pieces and then integrally installed on the installation beam, so as to be integrally integrated onto the top beam 120 to form a ceiling decoration.

[0137] For the specific structure of the support frame barrel structure 130, in some specific embodiments of the present application, the support frame barrel structure 130 and the base 110 can be fixedly connected. At this time, the bottom of the support frame barrel structure 130 is fixedly connected to the base 110 through bolts.

[0138] The support frame barrel structure 130 and the base 110 can also be slidably connected (this connection method is not shown). At this time, a chute is provided on the base 110, and the bottom of the support frame barrel structure 130 can be slidably arranged in the chute through a plastic wing nut.

[0139] The sliding connection method is convenient for adjusting the position of the support frame barrel structure 130 to match electrical equipment of different sizes.

[0140] Generally, the support frame barrel structures 130 arranged at both ends of the electrical equipment module generally adopt a fixed connection method, while the support frame barrel structures 130 located in the middle can adopt a sliding connection method.

[0141] In some embodiments of the present application, refer to Figure 9 and Figure 10, the support frame tube structure 130 includes two relatively arranged support wall frames 131, and each support wall frame 131 is formed by welding or assembling metal profiles. A connecting beam 132 is provided between the two support wall frames 131. The bottom of the support wall frame 131 is connected to the base 110, and the top of the support wall frame 131 is connected to the top beam 120.

[0142] The bus duct 141, the cable duct 142, and the pressure relief duct 143 are all fixedly arranged inside the support wall frame 131.

[0143] Further, the connecting beam 132 includes a first connecting beam 1321 and a second connecting beam 1322. The first connecting beam 1321 is arranged at the top corner positions of the two support wall frames 131 and has an L-shaped structure, which plays a role in connecting and fixing both the top and the side of the support wall frame 131. A plurality of second connecting beams 1322 are provided between the two first connecting beams 1321.

[0144] The first connecting beam 1321 and the second connecting beam 1322 are formed by sheet metal bending or profile welding and are fixed to the support wall frame 131 by bolts or welding.

[0145] Further, an angle support plate 133 is welded between the horizontal beam and the vertical beam forming the support wall frame 131 to further improve the structural strength.

[0146] Further, a plurality of symmetrically distributed lifting rings 190 are provided at the top of the support wall frame 131 to facilitate top lifting by lifting tools and facilitate installation.

[0147] Further, a first side sealing plate 161 is provided on the outer side of the support wall frame 131 for shielding the internal installation space of the support frame tube structure 130.

[0148] The first side sealing plate 161 is made of metal sheet metal spray painted or powder coated and is fixed to the outer side of the support wall frame 131 by bolts or welding.

[0149] Further, a detachable sealing plate 180 is provided on the first side sealing plate 161, and the detachable sealing plate 180 is used to block the bus duct 141 and the pressure relief duct 143. The one facing the bus duct 141 is defined as the first detachable sealing plate 181, and the one facing the pressure relief duct 143 is defined as the second detachable sealing plate 182.

[0150] The detachable sealing plate 180 is also made of metal sheet metal or powder coated and is installed on the support wall frame 131 by bolts.

[0151] When the electrical equipment module does not require bus routing, the bus duct 141 is blocked by the first detachable sealing plate 181; when the bus routing is required in the cabin 100, the first detachable sealing plate 181 is removed.

[0152] When the electrical equipment module does not need pressure relief, the pressure relief channel 143 is blocked by the second detachable sealing plate 182; when the cabin 100 needs pressure relief, the second detachable sealing plate 182 is removed.

[0153] Furthermore, a second side sealing plate 162 and a door body 170 are arranged up and down on the sides of the two support wall frames 131.

[0154] The second side sealing plate 162 is made of metal sheet metal sprayed with paint or plastic, and is fixed to the support wall frame 131 by bolts or welding for connecting the two support wall frames 131.

[0155] An opening 1621 communicating with the pressure relief channel 143 is provided on the second side sealing plate 162 to achieve pressure relief.

[0156] The door body 170 can be in the form of a single-leaf door or a double-leaf door, facilitating the operator to enter the inside of the support frame structure 130 for line maintenance and the like.

[0157] Furthermore, a plurality of cable brackets 150 are arranged on the inner side of the support wall frame 131, and fixing holes 151 for fixing cables are provided on the cable brackets 150.

[0158] The cable brackets 150 are made of metal profiles or welded by hot plates. Flanges (not marked) are welded on the end sides of the profiles, and the flanges are fixed to the support wall frame 131 by bolts or welding.

[0159] The number and installation positions of the cable brackets 150 can be specifically set according to the wiring requirements.

[0160] Furthermore, a wiring groove 142 is arranged on the inner side of the support wall frame 131. The wiring groove 142 is formed by bending metal plates, and its surface can be treated by painting or plastic spraying. It includes a groove body and a groove cover plate. The groove body and the groove cover are fixed by bolts, and the whole wiring groove 142 can be fixed to the support wall frame 131 by bolts or welding.

[0161] A wire climbing frame is designed inside the groove body for fixing secondary cables.

[0162] The number and installation positions of the wiring grooves 142 can be specifically set according to the wiring requirements.

[0163] The cable brackets 150 and the wiring grooves 142 are used for the wiring of different types of wires.

[0164] Regarding the specific structure of the busbar channel 141, in some embodiments of the present application, the busbar channel 141 is assembled by busbar enclosures formed by bending stainless steel plates, steel plates, aluminum plates, etc. The busbar enclosures are fixed to each other and to the support wall frame 131 by bolts.

[0165] Further, an insulator bracket (not shown) is provided in the busbar channel 141 for installing and fixing the insulators of the copper busbars.

[0166] The busbar channel 141 can realize the through connection of the copper busbars of the switchgear equipment on both sides of the support structure and has the function of preventing eddy currents.

[0167] Regarding the specific structure of the pressure relief channel 143, in some embodiments of the present application, the pressure relief channel 143 is assembled by pressure relief enclosures formed by bending metal sheet metal. The pressure relief enclosures are fixed to each other and to the support wall frame 131 by bolts.

[0168] The pressure relief channel 143 can penetrate the pressure relief channels of the switchgear on both sides of the support frame barrel structure 130 and export the cabinet body pressure relief to the outside of the cabin through the support structure.

[0169] [Auxiliary function non-core module]

[0170] The auxiliary function module can integrate various functions inside according to user needs. Two forms of auxiliary function modules are given in the present application.

[0171] The first type of auxiliary function module is the corridor integration module 800. Referring to Figure 26 , it includes a base 110 and a top beam 120. A floor 810 is provided on the base 110, and a ceiling 820 is provided below the top beam 120. An air duct 830 and / or a busbar bridge 840 are provided between the ceiling 820 and the top beam 120. The air duct 830 is connected to the air outlet 831 through a pipeline to supply conditioned air to the indoor space.

[0172] In the structure as Figure 7 shown, the corridor module R2 is the corridor integration module 800. It is arranged between two electrical equipment modules R1 and at one end of the electrical equipment module R1 to form a corridor space, providing space for the maintenance of the electrical equipment 200.

[0173] Of course, in other embodiments, the installation position and installation direction of the corridor integration module 800 can be flexibly arranged according to requirements.

[0174] More specifically, the corridor integration module 800 can be integral or split.

[0175] The integral corridor integration module means that a support upright is provided between the base 110 and the top beam 120 of the corridor integration module. The base 110, the top beam 120, the support columns, the ceiling 820, the air duct 830, the busbar bridge 840, etc. are prefabricated and wired in the factory first, and then transported to the customer site as a complete transportation unit and spliced with other modules, greatly shortening the on-site installation time and improving the on-site installation efficiency.

[0176] The split - type corridor integrated module means that there is no supporting vertical frame connecting the base 110 and the top beam 120 of the corridor integrated module. During the factory prefabrication stage, first, the floor 810 is assembled with the base 110 to form an independent unit, and then the top beam 120, the ceiling 820, the air duct 830, the bus - bar bridge 840 and other top structures are assembled to form another independent unit. Then, these two parts of the units are transported in a multi - layer stacking manner, saving transportation vehicles and transportation costs. After arriving at the customer site, the above - mentioned two independent units are spliced with other surrounding modules by means of bolt penetration and the like, thus completing the on - site installation of the split - type corridor integrated module.

[0177] The second auxiliary function module is the stair environmental control integrated module 900. Referring to Figure 27 , it also forms a cabin structure composed of a base, a top beam and a circumferential support frame. Inside it, it is separated into an environmental control compartment 910 and a stair compartment 920 by a partition structure 600. An air - conditioning device 911 is provided in the environmental control compartment 910, and a stair 921 is provided in the stair compartment 920.

[0178] During the factory prefabrication stage of this module, first, the partition structure 600, the air - conditioning device 911, the stair 921 and the like are integrated into the cabin body, and then the whole module is transported to the site and spliced with other modules.

[0179] [Splicing and positioning structure]

[0180] In some embodiments of the present application, the positioning structure 300 includes a first positioning structure between the transformer cabin 22 and the foundation connecting piece, and a second positioning structure between the electrical equipment module and the auxiliary function module. Each module is spliced horizontally through the positioning structure 300. The bottom of each module is provided with the positioning structure 300, and the top of each module is provided with a lifting part 500.

[0181] The lifting part 500 can be a lifting lug / and or a lifting ring, and the lifting point positions are symmetrically distributed to ensure the balance of each module during lifting. At the same time, the present application also innovatively introduces auxiliary lifting points, and the lifting balance is further improved by adding auxiliary lifting points during lifting.

[0182] For the first positioning structure (not shown), in some embodiments of the present application, the first positioning structure includes a first positioning member and a first guiding member. The first positioning member is provided with a first guiding column, and the first positioning member is arranged on the foundation connecting piece; the first guiding member is provided with a first guiding hole, and the first guiding member is arranged at the bottom of the transformer cabin 22; the first guiding column and the first guiding hole are correspondingly inserted to realize the plug - in positioning and fixation between the transformer cabin 22 and the foundation connecting piece.

[0183] Similarly, position the components in the second positioning structure with the second positioning member and the second guiding member. The second guiding columns are on the second positioning member, and the second guiding holes are on the second guiding member.

[0184] Regarding the specific structure of the positioning structure 300, in some embodiments of the present application, refer to Figures 12 to 14 , where Figure 12 In the structure shown, two electrical equipment modules can be spliced, or an electrical equipment module can be spliced with other auxiliary function modules, or a transformer cabin can be spliced with a foundation connecting member. For the convenience of description, the two modules to be spliced are defined as the first module M1 and the second module M2.

[0185] The positioning structure 300 includes a positioning member 310 and a guiding member 320. A plurality of guiding columns 313 are provided on the positioning member 310, and guiding holes 321 are provided on the guiding member 320. The guiding member 320 is provided at the bottom of the cabin 100.

[0186] During splicing, first install the positioning member 310 on one of the modules to be spliced (such as the first module M1), and make one of the guiding columns 313 pass through the guiding hole 321 on the corresponding module (i.e., the first module M1). Then, insert the guiding holes 321 on the remaining modules to be spliced (i.e., the second module M2) corresponding to the remaining guiding columns 313, and cooperate with overhead lifting to easily complete the rapid splicing of two adjacent modules.

[0187] Specifically, the positioning member 310 includes a substrate 311, a connecting portion 312, and positioning columns 313. The connecting portion 312 is vertically arranged in the middle position of the substrate 311. A first connecting hole 314 is formed on the connecting portion 312 for fixing the entire positioning member 310 to the bottom of the cabin. A plurality of positioning columns 313 are vertically arranged on the substrate 311, and the plurality of positioning columns 313 are respectively located on both sides of the connecting portion 312 for positioning and connecting between adjacent cabins.

[0188] For the convenience of processing, the substrate 311, the connecting portion 312, and the positioning columns 313 are connected by welding. Of course, other assembly forms such as bolt connection can also be used. Only one implementation method is proposed here and is not specifically limited.

[0189] The guiding member 320 is a plate-like structure, horizontally formed at the bottom of the module cabin. Guiding holes 321 are formed on the guiding member 320. During the positioning process, the positioning columns 313 penetrate into the corresponding guiding holes 321 to realize the splicing between adjacent modules.

[0190] On the bottom side wall of the module cabin, a second connection hole 322 is formed. In the installed state, the second connection hole 322 corresponds to the first connection hole 314, and a bolt 330 passes through the first connection hole 314 and the second connection hole 322 to fix the positioning member 310 on the module cabin.

[0191] Figures 12 to 14 In the structure shown, two positioning posts 313 are provided on the positioning member for splicing of adjacent two modules.

[0192] If four adjacent modules need to form a cross-shaped splicing, four positioning posts 313 are required for the positioning member 310 to be provided. Refer to Figure 14 , and the installation process can refer to the splicing process of two modules, which will not be elaborated here.

[0193] For the splicing of upper and lower layer modules, refer to Figure 16 , install the positioning member 310 on the top of the lower layer module K1 cabin, install the guiding member 320 on the bottom of the upper layer module K2 cabin, and through the positioning of the positioning member 310 and the guiding member 320, the rapid splicing of the upper and lower layer modules is realized.

[0194] [Vertical stacking and fixing structure]

[0195] When the upper and lower modules are stacked, they are positioned and fixed through the fixing structure as shown in Figures 23 to 25 .

[0196] Specifically, the fixing structure 700 includes a first fixing beam 710, a second fixing beam 720, an anti-rotation fixing part 730, and a fastener 740.

[0197] The first fixing beam 710 is fixedly arranged on the top of the lower layer module K1, and a plurality of first fixing holes (not marked) are provided along the length direction of the first fixing beam 710.

[0198] The second fixing beam 720 is fixedly arranged on the bottom side of the upper layer module K2, and a plurality of second fixing holes (not marked) are provided along the length direction of the second fixing beam 720.

[0199] The anti-rotation fixing part 730 includes an anti-rotation member 731 and a nut 732. The anti-rotation member 731 is an L-shaped structure, which has a first abutting wall 7311 abutting against the top surface of the second fixing beam 720 and a second abutting wall 7312 abutting against the side surface of the second fixing beam 720. The nut 732 is arranged on the first abutting wall 7311.

[0200] During installation, place the upper layer module K2 on top of the lower layer module K1, place the anti-rotation fixing part 730 at the position of the fixing point to be fixed, and then pass the fastener 740 from bottom to top through the first fixing hole, the second fixing hole, and the nut 732, and the fixing of the upper layer module K2 and the lower layer module K1 can be realized.

[0201] The anti-rotation fixing part 730 is a key component of the fixing structure 700. There is no need to separately design fixing points to ensure the correspondence of the upper and lower fixing points. The number of fixing points can be increased or decreased according to actual needs, avoiding the problem of misalignment of the upper and lower fixing holes caused by factors such as errors, and improving the installation efficiency.

[0202] Both the first fixing hole and the second fixing hole are oblong holes or strip holes. The spacing distance between adjacent two first fixing holes and the spacing distance between adjacent two second fixing holes are both fixed modular dimensions, facilitating the alignment and connection of the upper and lower fixing holes when stacking the upper and lower layer modules.

[0203] The first fixing beam 710 is fixedly arranged on the top beam 120 of the lower layer module K1 by welding or bolts, and the second fixing beam 720 is fixedly arranged on the bottom side of the base 110 of the upper layer module K2 by welding or bolts.

[0204] The first fixing beam 710 in this embodiment is an inverted U-shaped structure with high structural strength, and the first fixing hole is opened at the top of the first fixing beam 710.

[0205] The second fixing beam 720 in this embodiment is a C-shaped slide rail, and one side surface of the C-shaped slide rail is fixedly connected to the bottom side surface of the upper layer module (that is, the side surface of the base 110).

[0206] When the anti-rotation fixing part 730 is placed on the second fixing beam 720, the first abutting wall 7311 abuts against the top surface of the C-shaped slide rail, and the second abutting wall 7312 abuts against the other side surface of the C-shaped slide rail, playing an anti-rotation role and improving the connection reliability.

[0207] Furthermore, arc-shaped bending parts 721 that are bent inwardly towards the inside of the C-shaped slide rail are respectively provided at the bottom ends of the two side surfaces of the C-shaped slide rail. When the upper layer module K2 is placed on the top of the lower layer module K1, the bottom of the arc-shaped bending part 721 abuts against the first fixing beam 710. When the upper cabin needs to adjust its position, the arc-shaped structure facilitates movement along the first fixing beam 710.

[0208] The nut 732 is a riveted nut, which is riveted to the top of the first abutting wall 7311 and becomes an integral body with the anti-rotation part 731.

[0209] The fastener 740 is a bolt, and a gasket 750 is provided between the fastener 740 and the first fixing beam 710 to reduce local stress and improve the structural reliability.

[0210] [Partition structure]

[0211] In some embodiments of the present application, a partition structure 600 is provided in each prefabricated cabin. The partition structure 600 can be arranged along the length or width direction of the prefabricated cabin, and can be flexibly set as needed to achieve the flexibility of the separated compartments.

[0212] The partition structure 600 is slidably arranged, facilitating the adjustment of the position of the partition structure 600.

[0213] The partition structure 600 includes a door - type partition and / or a support - type partition 630.

[0214] The door - type partition serves to separate compartments, provide passage, and offer a certain degree of support.

[0215] The support - type partition 630 serves to separate compartments and provide support.

[0216] The partition structure 600 in this application has multiple types, realizing multiple functions. And multiple types of partitions can be flexibly combined as needed within the cabin. Meanwhile, combined with the flexibility of the installation position, it can greatly improve the versatility and usage flexibility of the partition structure 600, and contribute to improving the installation efficiency.

[0217] Regarding the sliding installation method of the partition structure 600, in some embodiments of this application, referring to Figure 22 , slide rails 410 are respectively provided on the base 110 and the top beam 120 of the module. The bottom of the partition structure 600 is slidably connected to the slide rail 410 through a plastic wing nut 420, and the top of the partition structure 600 is slidably connected to the slide rail 410 through a plastic wing nut 420.

[0218] The slide rail 410 is made of C - shaped steel and is welded or bolt - fixed at appropriate positions on the base 110 and the top beam 120 according to actual needs.

[0219] Installation holes are provided at both the bottom and the top of the partition structure 600, and it is installed on the slide rail 410 through bolts and plastic wing nuts 420. By sliding the plastic wing nut 420 along the slide rail 410, the sliding of the partition structure 600 is realized.

[0220] After the partition structure 600 slides to a suitable position, it can be fixed to the slide rail 410 through angle steel and bolts at the side end of the partition structure 600 to achieve the final fixation of the position.

[0221] Regarding the specific structure of the door - type partition, in some embodiments of this application, referring to Figure 17 and Figure 18 , the door - type partition includes a pair - opening emergency - exit partition 610. The pair - opening emergency - exit partition 610 includes a first door frame 611, a pair of opening doors 612 are provided on the first door frame 611, and it also includes auxiliary accessories such as an emergency - exit lock, a door shaft, a lock rod, etc.

[0222] The bottom of the first door frame 611 is slidably connected to the base 110, and the top of the first door frame 611 is slidably connected to the top beam 120, realizing the sliding installation of the emergency - exit partition 610.

[0223] In Figure 17In the structure shown, the split escape door partition 610 has two and is relatively arranged on two side support frames in the module length direction.

[0224] In some embodiments of the present application, with reference to Figure 17 and Figure 19 , the door partition further includes a two-way single-opening door closer door partition 620. The two-way single-opening door closer door partition 620 includes a second door frame 621. A two-way single-opening door closer door 622 is provided on the second door frame 621, and auxiliary accessories such as a door closer and a door shaft are also included.

[0225] The bottom of the second door frame 621 is slidably connected to the base 110, and the top of the second door frame 621 is slidably connected to the top beam 120, realizing the sliding installation of the two-way single-opening door closer door partition 620.

[0226] In Figure 17 the structure shown, the two-way single-opening door closer door partition 620 is arranged along the width direction of the cabin body, dividing the internal space of the cabin body into two left and right compartments.

[0227] Regarding the specific structure of the support partition 630, in some embodiments of the present application, the support partition 630 is a support frame 631 formed by profiles and / or plates through welding and / or assembly, meeting the requirements of support strength.

[0228] The bottom of the support frame 631 is slidably connected to the base 110, and the top of the support frame 631 is slidably connected to the top beam 120, realizing the sliding installation of the support frame 631.

[0229] A fireproof material and a decorative surface can be provided on the outer side of the support frame 631 to improve the fireproof performance and external aesthetics.

[0230] In Figure 20 and Figure 21 the structure shown, the support partition 630 is arranged along the length direction of the cabin body, and a hoisting part 500 for hoisting is provided at the top of the support frame 631, facilitating hoisting operations.

[0231] [Installation method of modular prefabricated cabin]

[0232] Based on the prefabricated cabin modularly divided according to functions and the installation method of top hoisting and bottom positioning, the installation method of the modular prefabricated cabin in the present application is as follows:

[0233] Complete the prefabrication and wiring of each module (including electrical equipment modules and auxiliary function modules) in the factory;

[0234] Transport each module to the customer site as an independent transportation unit;

[0235] During on-site installation:

[0236] Select a certain module in the first - layer prefabricated cabin (such as the first module at the end) as the first installation module I, and set positioning structures 300 at one end and / or both ends of the bottom of the first installation module I;

[0237] Fix the first installation module I to the prefabricated cabin foundation;

[0238] Install a positioning structure 300 at one end of the bottom of the second installation module I, and install the other end of the second installation module I on the positioning structure 300 adjacent to it and provided on the first installation module I, so as to realize the horizontal splicing of the first installation module I and the second installation module I;

[0239] And so on, complete the horizontal splicing of all modules in the first - layer prefabricated cabin, and the last - installed module does not need to install the positioning structure 300;

[0240] Select a certain module in the N - th layer (N = 2, 3,...) prefabricated cabin (such as the first module at the end) as the first installation module N, take the positioning structure 300 and install it on the top of the first layer, and set positioning structures 300 at one end and / or both ends of the bottom of the first installation module N;

[0241] Fix the first installation module N to the top of the first - layer prefabricated cabin;

[0242] Install a positioning structure 300 at one end of the bottom of the second installation module N, and install the other end of the second installation module N on the positioning structure 300 adjacent to it and provided on the first installation module N, so as to realize the horizontal splicing of the first installation module N and the second installation module N;

[0243] And so on, complete the horizontal splicing of all modules in the N - th layer prefabricated cabin, and the last - installed module does not need to install the positioning structure 300.

[0244] In the description of the above - mentioned embodiments, the specific features, structures, materials or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0245] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A substation with an external transformer, characterized in that, Comprising: A transformer part and a prefabricated cabin part, wherein the transformer part is arranged outside the prefabricated cabin part and there is a certain distance between them; The transformer part at least includes transformer equipment; The prefabricated cabin has multiple layers, and each layer of the prefabricated cabin is formed by splicing a plurality of electrical equipment modules and a plurality of auxiliary function modules divided according to functions in the horizontal direction; Each of the electrical equipment modules and each of the auxiliary function modules are prefabricated and wired in the factory respectively, and each is used as an independent transportation and installation unit; Each of the electrical equipment modules and each of the auxiliary function modules are installed by means of top lifting; A support frame barrel structure and electrical equipment are arranged inside the cabin body of the electrical equipment module, and at least one of a bus duct, a cable duct and a pressure relief duct is arranged in the internal space surrounded by the support frame barrel structure for the electrical equipment to route and relieve pressure; The electrical equipment and the support frame barrel structure are slidably arranged on the base of the cabin body, and the installation spaces on the support frame barrel structures of the upper and lower layers are communicated; The positioning structure includes a first positioning structure between the transformer cabin body and the foundation connector, and a second positioning structure between the electrical equipment module and the auxiliary function module. Each module is spliced in the horizontal direction through the positioning structure, and a positioning structure is arranged at the bottom of each module; The positioning structure includes a positioning member and a guiding member. A plurality of guiding columns are arranged on the positioning member, guiding holes are arranged on the guiding member, and the guiding member is arranged at the bottom of the cabin body; During splicing, first install the positioning member on one of the modules to be spliced and make one of the guiding columns pass through the guiding hole on the corresponding module, and then insert the guiding holes on the remaining modules to be spliced corresponding to the remaining guiding columns, and cooperate with top lifting to complete the splicing of two adjacent modules; When stacking upper and lower modules, they are positioned and fixed through a fixing structure. The fixing structure includes a first fixing beam, a second fixing beam, an anti-rotation fixing part and a fastener; The first fixing beam is fixedly arranged on the top of the lower module, and a plurality of first fixing holes are arranged along the length direction of the first fixing beam; The second fixing beam is fixedly arranged on the bottom side of the upper module, and a plurality of second fixing holes are arranged along the length direction of the second fixing beam; The anti-rotation fixing part includes an anti-rotation member and a nut. The anti-rotation member is an L-shaped structure, which has a first abutting wall abutting against the top surface of the second fixing beam and a second abutting wall abutting against the side surface of the second fixing beam, and the nut is arranged on the first abutting wall; During installation, place the upper module on the top of the lower module, place the anti-rotation fixing part at the position of the fixing point to be fixed, and then pass the fastener from bottom to top through the first fixing hole, the second fixing hole and the nut, so as to realize the fixing of the upper module and the lower module.

2. The transformer-outdoor substation according to claim 1, wherein The transformer part further includes a transformer cabin for placing the transformer equipment. The transformer cabin is in a box-shaped structure with an open bottom. A hoisting part is provided at the top of the transformer cabin, and the bottom of the transformer cabin is fixed to the foundation connecting piece through a first positioning structure.

3. The transformer-outdoor substation according to claim 2, wherein the first positioning structure includes a first positioning member and a first guiding member; a first guiding column is provided on the first positioning member, and the first positioning member is arranged on the foundation connecting piece; a first guiding hole is provided on the first guiding member, and the first guiding member is arranged at the bottom of the transformer cabin; the first guiding column and the first guiding hole are correspondingly inserted.

4. The transformer-outdoor substation according to any one of claims 1 to 3, wherein second positioning structures are provided at the bottoms of both the electrical equipment module and the auxiliary function module; Between two adjacent electrical equipment modules, between two adjacent auxiliary function modules, and between adjacent electrical equipment modules and auxiliary function modules, splicing is achieved horizontally through the second positioning structure.

5. The transformer-outdoor substation according to claim 4, wherein the second positioning structure includes a second positioning member and a second guiding member; a plurality of second guiding columns are provided on the second positioning member, a second guiding hole is provided on the second guiding member, and the second guiding member is arranged at the bottoms of the electrical equipment module and the auxiliary function module; During splicing, the second positioning member is installed on one of the electrical equipment modules or auxiliary function modules to be spliced, and one of the second guiding columns is passed through the second guiding hole corresponding to the electrical equipment module or auxiliary function module, and then the second guiding holes on the remaining electrical equipment modules or auxiliary function modules to be spliced are correspondingly inserted with the remaining second guiding columns.

6. The transformer-outdoor substation according to claim 4, wherein the auxiliary function module includes a corridor integration module, which has a floor at the bottom and a ceiling at the top. An air duct and / or a bus bridge are arranged in the space between the ceiling and the top beam of the corridor integration module.

7. The transformer-outdoor substation according to claim 4, wherein the auxiliary function module further includes a stair and environmental control integration module, which is internally divided into an environmental control compartment and a stair compartment by a partition structure. Air conditioning equipment is provided in the environmental control compartment, and a stair is provided in the stair compartment.

8. The transformer-outdoor substation according to claim 4, wherein the size of each electrical equipment module and each auxiliary function module is a standard modular size; The standard modular size = the minimum size of each electrical equipment module and the auxiliary function module + an integer multiple of the reference modular size, and the reference modular size is a preset fixed value.

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