CN115506599A - Installation method of prefabricated cabin for transformer substation - Google Patents

Abstract

The invention discloses a method for installing a prefabricated cabin for a transformer substation, wherein the prefabricated cabin is provided with one layer or a plurality of layers, each layer of the prefabricated cabin consists of a plurality of modules, each module is an independent transportation and installation unit, and the method for installing the prefabricated cabin comprises the following steps: every module all adopts the mode of top hoist and mount to install, and the bottom and the top of module set up location structure as required, and two adjacent modules realize the horizontal location concatenation through location structure about, and two adjacent modules from top to bottom realize the location concatenation from top to bottom through location structure. The installation method adopts a top hoisting and bottom positioning mode to realize quick splicing installation, and improves the existing installation efficiency and reliability.

Description

Installation method of prefabricated cabin for transformer substation

Technical Field

The invention relates to the technical field of transformer substations, in particular to a method for installing a prefabricated cabin for a transformer substation.

Background

The traditional transformer substation is generally in a civil engineering mode, needs site construction and building, and has the defects of long construction period, large influence on the surrounding environment, large occupied area and the like. With the increasing shortage of urban land, the living density of residents is continuously improved, and the problems that the normal life of the residents is influenced, the surrounding living environment is influenced and the like exist in a newly-built transformer substation in the urban center. In addition, the transformer substation is built under severe environments such as high altitude and the like, and the problems of long construction period, poor environment, difficult construction, high labor intensity of personnel and the like exist.

In order to solve the problems, the prefabricated cabin type transformer substation adopting the prefabricated cabin structure is widely used, and electrical equipment such as high-voltage equipment, low-voltage equipment, secondary equipment, a bus bar bridge and the like are integrated in the prefabricated cabin, and auxiliary equipment such as an air duct, a stair, an air conditioner and the like are also integrated in the prefabricated cabin.

The traditional prefabricated cabin type transformer substation adopts a bottom hoisting scheme, cannot be hoisted in place in one step when multiple modules are spliced, and is complex in module splicing and positioning and long in installation period. Under the current demands of fast station building, user demands for improving station building efficiency and market environments, a better prefabricated cabin installation method is urgently needed.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

Aiming at the problems pointed out in the background technology, the invention provides an installation method of a prefabricated cabin for a transformer substation with a top hoisting structure, and the field installation efficiency and reliability are improved.

In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:

the invention provides an installation method of a prefabricated cabin for a transformer substation, wherein the prefabricated cabin is provided with one or more layers, and each layer of the prefabricated cabin consists of a plurality of modules;

each module is an independent transportation and installation unit;

the installation method of the prefabricated cabin comprises the following steps:

each module is installed in a top hoisting mode;

the bottom and the top of the module are provided with positioning structures as required, the left and right adjacent modules are spliced in a horizontal positioning mode through the positioning structures, and the upper and lower adjacent modules are spliced in an upper and lower positioning mode through the positioning structures.

In some embodiments of the present application, the installation method specifically includes:

selecting a certain module in a first layer of prefabricated cabin as a first installation module I, and respectively arranging a positioning structure at one end and/or two ends of the bottom of the first installation module I;

fixing the first installation module I on a prefabricated cabin foundation;

installing a positioning structure at the bottom of one end of a second installation module I, and installing the other end of the second installation module I on a positioning structure which is adjacent to the second installation module I and arranged on the first installation module I, so that the first installation module I and the second installation module I are spliced in the horizontal direction;

by analogy, horizontal splicing of all modules in the first layer of prefabricated cabin is completed, and a positioning structure is not required to be installed on the last module;

selecting a certain module in an Nth layer (N =2,3.. Once.) prefabricated cabin as a first installation module N, installing a positioning structure 300 at the top of the first layer, and respectively arranging positioning structures at one end and/or two ends of the bottom of the first installation module N;

fixing the first installation module N to the top of the first layer of prefabricated cabin;

installing a positioning structure at the bottom of one end of a second installation module N, and installing the other end of the second installation module N on a positioning structure which is adjacent to the positioning structure and arranged on the first installation module N to realize the splicing of the first installation module N and the second installation module N in the horizontal direction;

and by analogy, horizontal splicing of all modules in the N-th layer of prefabricated cabin is completed, and a module installed at last does not need to be provided with a positioning structure.

In some embodiments of the present application, the first module at the end of each layer of the prefabricated cabin is selected as the first installation module.

In some embodiments of the present application, the modules in each layer of the prefabricated cabin are divided according to functions, and each module includes an electrical equipment module and an auxiliary function module, and the electrical equipment module and the auxiliary function module are prefabricated and wired in a factory respectively.

In some embodiments of the present application, a cabin of the electrical equipment module is internally provided with a support structure and electrical equipment, and an internal space enclosed by the support structure is provided with at least one of a bus channel, a cable channel and a pressure relief channel, so that the electrical equipment is used for routing and pressure relief;

the electrical equipment and/or the support structure are slidably disposed on a base of the enclosure.

In some embodiments of the present application, the size of each of the modules is a standard modular size;

the standard module size = the minimum size in each module + an integer multiple of a reference module size, and the reference module size is a preset fixed value.

In some embodiments of the application, partition structures for partitioning compartments and supporting are pre-arranged in the modules according to requirements, and the partition structures are arranged in a sliding manner along the length direction or the width direction of the prefabricated cabin;

and after the modules are spliced, adjusting the position of the partition structure, and finally fixing.

In some embodiments of the present application, a first fixing beam is disposed on the top of the module located at the lower layer, and a plurality of strip-shaped first fixing holes are disposed along the length direction of the first fixing beam;

the bottom of the module positioned on the upper layer is provided with a second fixed beam, and the second fixed beam is provided with a plurality of strip-shaped second fixed holes along the length direction;

the second fixing beam is provided with an anti-rotation fixing part, and the anti-rotation fixing part is provided with a nut;

after the module on the upper layer is stacked above the module on the lower layer, the bolt penetrates through the first fixing hole, the second fixing hole and the nut from bottom to top.

Compared with the prior art, the invention has the advantages and positive effects that:

the modules in the prefabricated cabin are installed in a top hoisting and bottom positioning mode, rapid positioning and splicing of the modules are achieved, and field installation efficiency and reliability are improved.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a layout of a modular prefabricated cabin according to an embodiment;

FIG. 2 is a schematic view of another layout of a modular prefabricated cabin according to an embodiment;

FIG. 3 is a schematic view of another layout of a modular prefabricated cabin according to an embodiment;

FIG. 4 is a view showing a mesh-shaped division manner of each module in a prefabricated cabin in the prior art;

FIG. 5 illustrates a manner of partitioning by modules within a prefabricated cabin according to an embodiment;

FIG. 6 is a schematic structural diagram of an electrical equipment module according to an embodiment;

FIG. 7 is a schematic structural view of a support structure according to an embodiment;

FIG. 8 is a schematic view of the structure shown in FIG. 7 without the first side sealing plate;

fig. 9 is a sliding mounting structure between an electrical device and a base according to an embodiment;

FIG. 10 is a horizontal mosaic between two adjacent modules according to an embodiment;

FIG. 11 is an enlarged view of portion J of FIG. 10;

FIG. 12 is an exploded view of the structure shown in FIG. 11;

FIG. 13 is a schematic structural diagram of a positioning element according to an embodiment;

FIG. 14 is a schematic view of a configuration in which two modules at the ends are spliced one above the other according to an embodiment;

FIG. 15 is a top view of an individual module of a prefabricated cabin according to an embodiment;

FIG. 16 is a front view of the structure of FIG. 15 from direction A;

FIG. 17 isbase:Sub>A cross-sectional view taken along line A-A of the structure shown in FIG. 15;

FIG. 18 is a schematic view showing another arrangement layout of partition structures according to the embodiment;

FIG. 19 is a front view, in the direction B, of the structure shown in FIG. 18;

FIG. 20 is a cross-sectional view taken along line B-B of the structure shown in FIG. 18;

FIG. 21 is a schematic view of a fixed structure of the cabins stacked up and down according to the embodiment;

FIG. 22 illustrates the upper and lower stacking fixtures of the cabins according to the embodiment;

FIG. 23 is an exploded view of the fixed structure of the nacelle stacked up and down according to the embodiment;

fig. 24 is a schematic structural diagram of a hallway integration module according to an embodiment;

fig. 25 is a top view of a stair environmental integrated module, according to an embodiment.

Reference numerals:

10-prefabricated cabin, 11-corridor;

100-cabin body, 110-base, 120-top beam, 130-supporting frame barrel structure, 131-supporting frame wall, 132-connecting beam, 1321-first connecting beam, 1322-second connecting beam, 133-corner supporting plate, 141-bus channel, 142-wiring groove, 143-pressure relief channel, 150-cable support, 151-fixing hole, 161-first side sealing plate, 162-second side sealing plate, 1621-opening, 170-door body, 180-detachable sealing plate, 181-first detachable sealing plate, 182-second detachable sealing plate and 190-lifting ring;

200-an electrical device;

300-a positioning structure, 310-a positioning piece, 311-a substrate, 312-a connecting part, 313-a positioning column, 314-a first connecting hole, 320-a guiding part, 321-a guiding hole, 322-a second connecting hole, and 330-a bolt;

410-slide rail, 420-plastic wing nut;

500-a hoisting part;

600-partition structure, 610-split escape door partition, 611-first door frame, 612-split door, 620-bidirectional single-opening door closer door partition, 621-second door frame, 622-bidirectional single-opening door closer door, 630-support partition, 631-support frame;

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

800-corridor integrated module, 810-floor, 820-ceiling, 830-air duct, 831-air outlet and 840-bus bridge;

900-stair environment control integrated module, 910-environment control room, 911-air conditioning equipment, 920-stair room, 921-stair;

r-unit module, R1-electrical equipment module, R2-corridor module;

m1-a first module;

m2-a second module;

k1-lower module;

k2-upper module;

w1-the depth direction of the cabinet body; w2-the width direction of the cabinet;

h-the boundary between the upper module and the lower module.

S-a segmentation line between modules in the same layer of prefabricated cabin.

Detailed Description

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

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

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

[ mounting method of prefabricated cabins ]

The invention discloses a prefabricated cabin for a transformer substation, which can be a one-layer prefabricated cabin and is shown in figure 1; multiple layers are also possible, as shown in fig. 2 and 3, and fig. 2 and 3 show two different types of three-layer layouts.

A plurality of modules are arranged in each layer of prefabricated cabin, and each module is an independent transportation and installation unit.

The installation method of the prefabricated cabin comprises the following steps:

prefabricating and wiring all modules in a factory;

transporting each module as an independent transport unit to a customer site;

each module is installed in a top hoisting mode;

the bottom and the top of the module are provided with positioning structures as required, the left and right adjacent modules are horizontally positioned and spliced through the positioning structures, and the upper and lower adjacent modules are vertically positioned and spliced through the positioning structures.

And all modules in the prefabricated cabin are installed in a top hoisting and bottom positioning mode, so that the modules are quickly positioned and spliced, and the field installation efficiency and reliability are improved.

Specifically, the installation method of the prefabricated cabin comprises the following steps:

selecting a certain module in the first layer of prefabricated cabin as a first installation module I, and respectively arranging a positioning structure at one end and/or two ends of the bottom of the first installation module I;

fixing a first installation module I on a prefabricated cabin foundation;

a positioning structure is arranged at the bottom of one end of a second installation module I, and the other end of the second installation module I is arranged on the positioning structure which is adjacent to the second installation module I and arranged on a first installation module I, so that the first installation module I and the second installation module I can be spliced in the horizontal direction;

by analogy, horizontal splicing of all modules in the first layer of prefabricated cabin is completed, and a positioning structure is not required to be installed on the last module;

selecting a certain module in an Nth layer (N =2,3,...) of the prefabricated cabin as a first installation module N, installing a positioning structure 300 at the top of the first layer, and respectively arranging positioning structures at one end and/or two ends of the bottom of the first installation module N;

fixing a first installation module N to the top of a first layer of prefabricated cabin;

installing a positioning structure at the bottom of one end of a second installation module N, and installing the other end of the second installation module N on a positioning structure which is adjacent to the positioning structure and arranged on the first installation module N to realize the splicing of the first installation module N and the second installation module N in the horizontal direction;

and by analogy, horizontal splicing of all modules in the N-th layer of prefabricated cabin is completed, and a module installed at last does not need to be provided with a positioning structure.

Preferably, when the modules of each layer of prefabricated cabin are spliced, the first module at the end part is selected as a first installation module.

[ Modular prefabricated cabin ]

According to the application, each layer of prefabricated cabin is divided into modules according to functions, and the modules comprise a plurality of electrical equipment modules and a plurality of auxiliary function modules.

Each electrical equipment module and each auxiliary function module are prefabricated and wired in a factory and are used as independent transportation and installation units.

The electrical equipment module is a core module of a prefabricated cabin, and main electrical equipment of a transformer substation, such as high-voltage equipment, medium-voltage equipment, low-voltage equipment, secondary equipment, a bus bridge and the like, is integrated.

The electrical equipment modules may be high voltage equipment modules, medium voltage equipment modules, low voltage equipment modules, secondary equipment modules, and the like.

The auxiliary functional module is a non-core module of a prefabricated cabin, which integrates auxiliary equipment and functions of a substation, such as corridors, stairs, lighting, air conditioners, air ducts, floors, wallboards, suspended ceilings and the like.

The auxiliary function module can be a corridor module, a stair module, an environment control module and the like.

The electrical equipment module and the auxiliary function module can be combined and arranged at will according to the requirements of users.

The electrical equipment module and the auxiliary function module are divided into modules according to functions.

One form of electrical equipment module in this application only includes electrical equipment, and does not include auxiliary function modules such as other corridors, and another type includes electrical equipment and corridor module, and its common characteristics are that electrical equipment height integration is internal at same module cabin, accomplishes prefabrication and wiring in the mill, utilizes the inside sound production quality inspection mechanism of mill effectual assurance product quality, and it is big to avoid needing customer's on-the-spot wiring work load among the prior art, and the difficult technological problem of control is difficult for the wiring quality.

Similarly, the auxiliary function module can highly integrate the structure for realizing the auxiliary function in the same module cabin body, and the prefabrication and wiring are completed in a factory.

The arrangement of the electrical equipment core module and the auxiliary function non-core module can bring the following beneficial effects:

the traditional prefabricated cabin is divided in a shape like a Chinese character 'mu', one layout mode of a single-layer prefabricated cabin shown in fig. 4 is taken as an example for carrying out division in a shape like a Chinese character 'mu', in a plurality of divided modules, except that a unit module R close to the side only comprises a corridor 11, each other unit module R comprises an electrical device 200 and the corridor 11, the electrical devices are positioned in different sectional modules through the division in the shape like the Chinese character 'mu', so that primary and secondary connection between the devices can be completed only after splicing of cabin bodies on site, the field workload is large, the device integration degree is not high, and the quality problem is difficult to control.

The novel form of dividing according to the functional modules is adopted in the application, referring to fig. 5, each line of corridor 11 is divided into independent corridor modules R2, each line of electrical equipment 200 is divided into independent electrical equipment modules R1, the electrical equipment 200 is highly integrated in the same electrical equipment module R1, production and assembly of each electrical equipment module R1 and each corridor module R2 are completed in a factory, and then the unit modules are taken as transportation units to be conveyed to a client site for splicing, so that the workload of the client site is greatly reduced, and the site assembly efficiency is improved.

Fig. 5 shows only one specific layout manner of the electrical equipment 200 and the corridor 11 in the prefabricated cabin, and in practical application, electrical equipment modules with different functions (such as a high-voltage electrical equipment module, a medium-voltage electrical equipment module, a low-voltage electrical equipment module, and the like) and auxiliary function modules (such as a corridor module, a stair module, an environmental control module, and the like) can be combined at will according to customer requirements, so that the effects of optimal segmentation, optimal factory prefabrication, optimal transportation cost, and optimal field construction are achieved.

The interface between each module is standardized, and the module size is standardized and modularized, so that each module has strong interchangeability and feasibility of factory prefabrication.

The size of each electrical equipment module and each auxiliary function module is standard modulus size, and through the setting of standard modulus size, the module can satisfy the increase of transformer substation equipment dilatation and operation and maintenance space through the increase of module quantity convenient and fast ground, has reduced the kind of module simultaneously.

The standard module size = the minimum size in each electrical equipment module and each auxiliary function module plus the integral multiple of the reference module size, the reference module size is a preset fixed value, and the reference module is obtained by calculation according to the actual sizes of the prefabricated cabin and the transformer substation.

The introduction of the standard modulus and the reference modulus enables the appearance of the cabin body to be unified to the maximum extent, thereby realizing the prefabricated production of the modules.

In some embodiments of the present application, the top of each electrical equipment module and each auxiliary function module is provided with a plurality of symmetrically arranged hoisting parts, and a top hoisting installation mode of each module is also realized.

The top hoisting mode is matched, the bottom of each module is provided with the positioning structure 700, the rapid positioning splicing of each module piece is realized, and the field installation efficiency and reliability are improved. The specific structure of the positioning structure 700 will be described in detail below.

In some embodiments, each module includes a cabin 100, the cabin 100 is a cabin frame composed of a base 110 and a top beam 120, and different types and structures of support structures are disposed between the base 110 and the top beam 120 according to different requirements of the module.

[ core Module of Electrical Equipment, supporting frame tube Structure ]

Regarding the specific structure of the electrical equipment module, in some embodiments of the present application, referring to fig. 6, the electrical equipment module includes a cabin 100 and electrical equipment 200 disposed in the cabin 100.

The cabin body 100 is a frame structure formed by welding and assembling sectional materials and/or plates, a vertical supporting frame tube structure 130 is arranged in the cabin body 100, and at least one of a bus channel 141, a cable channel 142 and a pressure relief channel 143 is arranged in an inner space surrounded by the supporting frame tube structure 130.

The electrical equipment module formed by the cabin 100 and the electrical equipment 200 is transported to a customer site as an independent transportation unit, and is spliced with other electrical equipment modules or auxiliary function modules.

The supporting frame tube structure 130 not only has the function of improving the overall structural strength of the cabin body 100, but also integrates the functions of wiring and pressure relief, thereby being beneficial to improving the structural compactness inside the cabin body 100 and further reducing the floor area of the cabin body. The bus duct 141, the cable duct 142, and the pressure relief duct 143 are appropriately selected and arranged according to the type of the electrical equipment 200 installed in the cabin 100. For example, the pressure relief path 143 may only be configured when medium pressure equipment is installed within the enclosure 100.

It should be noted that the entire internal space enclosed by the support frame-and-tube structure 130 can be considered as a cable channel.

When the prefabricated cabin is in multilayer arrangement, the mounting spaces on the upper and lower layers of the supporting frame tube structure 130 are communicated, so that wiring of electrical equipment between the upper and lower layers of the cabin body is facilitated, assembly of the modular prefabricated cabin is facilitated, and production assembly efficiency is improved.

According to the length of the nacelle 100, a plurality of the support frame-tube structures 130 may be arranged along the length direction of the nacelle 100 to satisfy the strength support requirement. In the structure shown in fig. 6, the number of the supporting frame tube structures 130 is three, and the electric device 200 is provided between two adjacent supporting frame tube structures 130.

With respect to the specific structure of the nacelle 100, in some embodiments of the present application, referring to fig. 6, the supporting frame-tube structure 130 is connected between the base 110 and the top beam 120 of the nacelle, and the electrical equipment 200 is slidably disposed on the base 110.

Taking a medium-low voltage electrical device as an example, referring to fig. 5, a dimension W1 of the electrical device 200 in the cabinet depth direction is generally fixed, a cabinet width dimension W2 of the electrical device 200 is variable, and the electrical device 200 can slide in the cabinet width direction W2 to realize position adjustment of each electrical device 200, so as to facilitate installation.

For the specific structure of the sliding installation of the electrical device, in some embodiments of the present application, referring to fig. 9, the base 110 is provided with a sliding rail 410, the sliding rail 410 extends along a cabinet width W2 direction of the electrical device, the bottom of the cabinet body of the electrical device 200 is slidably disposed in the sliding rail 410 through a wing-shaped nut 420, and the sliding adjustment of the electrical device 200 is realized through the sliding of the wing-shaped nut 420 along the sliding rail 410.

The top beam 120 integrates ceiling finishing (not shown), which includes mounting beams fixed to a frame of the top beam 120 and ceiling trim panels adopting a modular design, which are assembled into pieces and then integrally mounted on the mounting beams, thereby integrally integrating onto the top beam 120 to form ceiling finishing.

As to the specific structure of the supporting frame tube structure 130, in some embodiments of the present application, the supporting frame tube structure 130 and the base 110 may be fixedly connected, and at this time, the bottom of the supporting frame tube structure 130 is fixedly connected to the base 110 through a bolt.

The supporting frame tube structure 130 and the base 110 may be slidably connected (the connection mode is not shown), in this case, a sliding groove is formed on the base 110, and the bottom of the supporting frame tube structure 130 may be slidably disposed in the sliding groove through a wing-shaped nut.

The sliding connection facilitates adjustment of the position of the support frame tube structure 130 to match different sizes of electrical equipment.

Generally, the support frame tube structures 130 disposed at the two ends of the electrical equipment module are generally fixedly connected, while the support frame tube structure 130 disposed in the middle can be slidably connected.

In some embodiments of the present application, referring to fig. 7 and 8, the supporting frame structure 130 includes two opposite supporting wall frame bodies 131, and each of the supporting wall frame bodies 131 is welded or assembled by metal profiles. A connection beam 132 is provided between the two support wall frames 131. The bottom of the supporting frame wall 131 is connected with the base 110, and the top of the supporting frame wall 131 is connected with the top beam 120.

The bus duct 141, the cable duct 142 and the pressure relief duct 143 are all fixed inside the support wall frame body 131.

Further, the coupling beam 132 includes a first coupling beam 1321 and a second coupling beam 1322, the first coupling beam 1321 is disposed at the top corner position of the two support wall frame bodies 131, and is of an L-shaped structure, and both the top and the side of the support wall frame body 131 are connected and fixed, and a plurality of second coupling beams 1322 are disposed between the two first coupling beams 1321.

The first connecting beam 1321 and the second connecting beam 1322 are formed by bending metal plates or welding profiles, and are fixed to the support wall frame body 131 by bolts or welding.

Furthermore, an angled support plate 133 is welded between the transverse beam and the vertical beam forming the support wall frame body 131, thereby further improving the structural strength.

Further, the top of the support wall frame body 131 is provided with a plurality of and symmetrically distributed hoisting rings 190, so that the top hoisting is performed through a hoisting tool, and the installation is facilitated.

Further, a first side sealing plate 161 is disposed on an outer side of the supporting frame wall 131 to shield an inner installation space of the supporting frame tube structure 130.

The first side sealing plate 161 is formed by spraying paint or plastic on a metal plate, and is fixed on the outer side of the support wall frame body 131 by bolts or welding.

Further, a detachable sealing plate 180 is arranged on the first side sealing plate 161, and the detachable sealing plate 180 is used for sealing the bus duct 141 and the pressure relief duct 143. Defining a first removable closure plate 181 opposite the bus duct 141 and a second removable closure plate 182 opposite the pressure relief duct 143.

The removable seal plate 180 is also made of metal sheet or plastic spray and is mounted to the support wall frame 131 by bolts.

When the electrical equipment module does not need bus wiring, the bus passage 141 is blocked by the first detachable sealing plate 181; when the cabin 100 needs bus wiring, the first detachable sealing plate 181 is removed.

When the electrical equipment module does not need to be decompressed, the pressure relief channel 143 is blocked by the second detachable sealing plate 182; when the cabin 100 needs to be vented, the second removable sealing plate 182 is removed.

Further, the side portions of the two support wall frame bodies 131 are provided with a second side sealing plate 162 and a door body 170 which are arranged up and down.

The second side sealing plate 162 is formed by spraying paint or plastic on a metal plate, and is fixed to the support wall frame body 131 by bolts or welding for connecting the two support wall frame bodies 131.

The second side sealing plate 162 is provided with an opening 1621 communicated with the pressure relief channel 143 to relieve pressure.

The door 170 may be a single door or a double door, which facilitates the operator to enter the support frame tube structure 130 for line maintenance.

Further, a plurality of cable holders 150 are disposed at the inner side of the support wall frame body 131, and fixing holes 151 for fixing cables are disposed on the cable holders 150.

The cable holder 150 is formed by welding metal profiles or hot plates, and flanges (not shown) are welded to end sides of the profiles and are fixed to the support wall frame body 131 by bolts or welding.

The number and the installation position of the cable holders 150 can be specifically set according to the wiring requirement.

Further, the inner side of the support wall frame body 131 is provided with a wiring groove 142, the wiring groove 142 is formed by bending a metal plate, the surface of the wiring groove 142 can be processed by spraying paint or spraying plastic, the wiring groove comprises a wiring groove body and a wiring groove cover plate, the wiring groove body and the wiring groove cover are fixed through bolts, and the wiring groove 142 can be integrally fixed on the support wall frame body 131 through bolts or welding.

A creeper is designed in the trunking body and used for fixing a secondary cable.

The number and installation positions of the wiring slots 142 can be specifically set according to the wiring requirements.

The cable mount 150 and routing channel 142 are used to route different types of wires.

Regarding the specific structure of the bus duct 141, in some embodiments of the present application, the bus duct 141 is assembled by bending a stainless steel plate, a steel plate, an aluminum plate, or the like to form a bus shroud, and the bus shroud are fixed to the support wall frame 131 by bolts.

Further, an insulator bracket (not shown) is disposed in the bus duct 141 for mounting an insulator for fixing the copper bar.

Bus duct 141 can realize the through connection of the cubical switchboard equipment copper bar of bearing structure both sides to possess the vortex function of preventing.

To the concrete structure of pressure relief passageway 143, in some embodiments of this application, pressure relief passageway 143 is formed for the pressure relief bounding wall equipment that the metal panel beating was bent and is formed, through the bolt fastening between pressure relief bounding wall and the pressure relief bounding wall, pressure relief bounding wall and the support wall support body 131.

The pressure releasing channel 143 can penetrate the pressure releasing channels of the switch cabinet on both sides of the supporting frame-tube structure 130 and release the pressure of the cabinet to the outside of the cabin through the supporting structure.

[ auxiliary function non-core Module ]

The auxiliary function module can integrate various functions in the auxiliary function module according to the requirements of users. The application provides two forms of auxiliary function modules.

The first auxiliary function module is a corridor integration module 800, referring to fig. 24, which includes a base 110 and a top beam 120, a floor 810 is provided on the base 110, a ceiling 820 is provided below the top beam 120, an air duct 830 and/or a bus bridge 840 are provided between the ceiling 820 and the top beam 120, the air duct 830 is communicated with an air outlet 831 through a pipeline to convey conditioned air to an indoor space.

In the structure shown in fig. 5, the corridor module R2 is a corridor integrated module 800, which is disposed between two electrical equipment modules R1 and at one end of the electrical equipment module R1 to form a corridor space for maintenance of the electrical equipment 200.

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

More specifically, the corridor integration module 800 may be integrated or separated.

The integrated corridor integrated module is characterized in that a supporting vertical frame is arranged between a base 110 and a top beam 120 of the corridor integrated module, the base 110, the top beam 120, the supporting vertical frame, a suspended ceiling 820, an air duct 830, a bus bar bridge 840 and the like are prefabricated and wired in a factory, and then the integrated corridor integrated module is transported to a customer site as a complete transportation unit and then spliced with other modules, so that the site installation time is greatly shortened, and the site installation efficiency is improved.

The split corridor integrated module means that the base 110 and the top beam 120 of the corridor integrated module are connected without a support stand. In the prefabrication stage of a factory, the floor 810 and the base 110 are assembled to form an independent unit, then the top structures such as the top beam 120, the ceiling 820, the air duct 830, the bus bridge 840 and the like are assembled to form another independent unit, and then the two units are transported in a multi-layer stacking mode, so that the transport vehicle and the transport cost are saved. After the split corridor integrated module reaches the client site, the two independent units are spliced with other peripheral modules in a bolt penetrating mode and the like, and then the field installation of the split corridor integrated module is completed.

The second auxiliary functional module is a stair environment control integrated module 900, referring to fig. 25, which also includes a cabin structure formed by a base, a top beam and a circumferential support frame, and is separated into an environment control room 910 and a stair room 920 by a partition structure 600, an air conditioner 911 is installed in the environment control room 910, and a stair 921 is installed in the stair room 920.

In the prefabrication stage of a factory, the partition structure 600, the air conditioning equipment 911, the stairs 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.

[ splicing positioning Structure ]

For the concrete splicing and positioning structure of each module, in some embodiments of the present application, each module is spliced in the horizontal direction by 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 the hoisting part 500.

The hoisting part 500 can be a lifting lug and/or a lifting ring, and the positions of the hoisting points are symmetrically distributed so as to ensure the balance of each module during hoisting. Meanwhile, an auxiliary hoisting point is innovatively introduced, and the hoisting balance is further improved by adding the auxiliary hoisting point during hoisting.

As to the specific structure of the positioning structure 300, in some embodiments of the present application, reference is made to fig. 10 to 12, where in the structure shown in fig. 10, two electrical equipment modules may be spliced, or an electrical equipment module may be spliced with other auxiliary function modules. For convenience of description, two modules to be spliced are defined as a first module M1 and a second module M2.

The positioning structure 300 includes a positioning member 310 and a guide member 320. The positioning member 310 is provided with a plurality of guide posts 313, the guide member 320 is provided with guide holes 321, and the guide member 320 is disposed at the bottom of the cabin 100.

During splicing, the positioning member 310 is firstly installed on one of the modules to be spliced (for example, the first module M1), one of the guide posts 313 is inserted into the guide hole 321 of the corresponding module (namely, the first module M1), and then the guide holes 321 of the other modules to be spliced (namely, the second module M2) and the guide holes Yu Dao thereof are correspondingly inserted into the posts 313, and the quick splicing of the two adjacent modules can be easily completed by matching with top hoisting.

Specifically, the positioning member 310 includes a base plate 311, a connecting portion 312 and positioning pillars 313, the connecting portion 312 is disposed at a middle position of the base plate 311 in a vertical direction, a first connecting hole 314 is formed on the connecting portion 312 for fixing the whole positioning member 310 at the bottom of the cabin body, a plurality of positioning pillars 313 are vertically disposed on the base plate 311, and the plurality of positioning pillars 313 are respectively disposed at two sides of the connecting portion 312 for positioning connection between adjacent cabin bodies.

For convenience of processing, the substrate 311, the connection portion 312 and the positioning column 313 are connected by welding, and of course, other assembling forms such as bolt connection may be adopted.

The guide member 320 is a plate-shaped structure and horizontally formed at the bottom of the module cabin, a guide hole 321 is formed on the guide member 320, and in the positioning process, the positioning column 313 penetrates into the corresponding guide hole 321 to realize splicing between adjacent modules.

A second connecting hole 322 is formed on the bottom side wall of the module cabin, in the installation state, the second connecting hole 322 corresponds to the first connecting hole 314, and the bolt 330 passes through the first connecting hole 314 and the second connecting hole 322 for fixing the positioning member 310 on the module cabin.

In the structure shown in fig. 10 to 12, two positioning columns 313 are disposed on the positioning member for splicing two adjacent modules.

If four adjacent modules need to be spliced in a cross shape, four positioning columns 313 need to be arranged on the required positioning element 310, referring to fig. 12, the installation process can refer to the splicing process of two modules, and details are not repeated.

For the splicing of the upper and lower modules, referring to fig. 14, a positioning member 310 is installed at the top of the cabin of the lower module K1, a guide member 320 is installed at the bottom of the cabin of the upper module K2, and the quick splicing of the upper and lower modules is realized by the positioning of the positioning member 310 and the guide member 320.

[ Upper and lower stacking and fixing Structure ]

The upper and lower modules are positioned and fixed by the fixing structure shown in fig. 21 to 23 when stacked.

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

The first fixing beam 710 is fixedly disposed on the top of the lower module K1, and a plurality of first fixing holes (not labeled) are disposed on the first fixing beam 710 along the length direction thereof.

The second fixed beam 720 is fixed on the bottom side of the upper module K2, and a plurality of second fixed holes (not labeled) are formed in the second fixed beam 720 along the length direction.

The anti-rotation fixing portion 730 includes an anti-rotation piece 731 and a nut 732. The rotation preventing piece 731 is an L-shaped structure having 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 provided on the first abutting wall 7311.

During installation, the upper module K2 is placed on the top of the lower module K1 in a rolling mode, the anti-rotation fixing portion 730 is placed at a fixed point position needing to be fixed, and then the fastener 740 is arranged in the first fixing hole, the second fixing hole and the nut 732 in a penetrating mode from bottom to top, so that the upper module K2 and the lower module K1 can be fixed.

The anti-rotation fixing portion 730 is a key component of the fixing structure 700, and the fixing points do not need to be designed separately to ensure the correspondence between the upper and lower fixing points, so that the number of the fixing points can be increased or reduced according to actual needs, the problem that the upper and lower fixing holes are not aligned due to errors and other factors is avoided, and the installation efficiency is improved.

The first fixing holes and the second fixing holes are long round holes or long strip holes, and the spacing distance between every two adjacent first fixing holes and the spacing distance between every two adjacent second fixing holes are both of fixed module sizes, so that the upper fixing holes and the lower fixing holes are aligned and connected when the upper module and the lower module are stacked.

The first fixed beam 710 is fixed on the top beam 120 on the lower module K1 by welding or bolts, and the second fixed beam 720 is fixed on the bottom side of the base 110 on the upper module K2 by welding or bolts.

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

The second fixing beam 720 in this embodiment is a C-shaped sliding rail, and one side of the C-shaped sliding rail is fixedly connected to the bottom side of the upper module (i.e., the side of the base 110).

When the anti-rotation fixing portion 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, so that the anti-rotation effect is achieved, and the connection reliability is improved.

Further, the bottom of two sides of C type slide rail is equipped with the arc kink 721 to the inboard bending of C type slide rail respectively, and when upper module K2 was put on a roll at lower module K1's top, the bottom and the first fixed beam 710 of arc kink 721 supported and leaned on, and when the upper deck cabin body needed the adjusting position, the arc structure was convenient for remove along first fixed beam 710.

The nut 732 is a rivet nut that is riveted to the top of the first abutting wall 7311, integrally with the rotation preventing member 731.

The fastener 740 is a bolt, and a gasket 750 is arranged between the fastener 740 and the first fixing beam 710, so that local stress is reduced, and structural reliability is improved.

[ partition structure ]

In some embodiments of the present application, each prefabricated cabin is provided with a partition structure 600, and the partition structures 600 can be flexibly arranged as required along the length or width direction of the prefabricated cabin, so as to realize the flexibility of separating the compartments.

The partition structure 600 is slidably disposed, so that the position of the partition structure 600 can be conveniently adjusted.

The partition structure 600 includes door type partitions and/or support type partitions 630.

The door partition plays roles of separating compartments, passing and supporting to a certain extent.

The support-type partitions 630 serve to partition the compartments and support them.

The partition structure 600 in the application has multiple types, multiple functions are realized, the multiple types of partitions can be flexibly combined and used in the cabin body as required, meanwhile, the flexibility of the installation position is matched, the universality and the use flexibility of the partition structure 600 can be greatly improved, and the installation efficiency is improved.

For the sliding installation manner of the partition structure 600, in some embodiments of the present application, referring to fig. 20, the base 110 and the top beam 120 of the module are respectively provided with a sliding rail 410, the bottom of the partition structure 600 is slidably connected to the sliding rail 410 through a wing-shaped nut 420, and the top of the partition structure 600 is slidably connected to the sliding rail 410 through the wing-shaped nut 420.

The sliding rails 410 are made of C-shaped steel and are welded or bolted at appropriate positions of the base 110 and the top beam 120 according to actual needs.

The bottom and the top of the partition structure 600 are both provided with mounting holes, and the partition structure is mounted on the slide rail 410 through bolts and plastic wing nuts 420. The sliding of the partition structure 600 is realized by the sliding of the wing-shaped nut 420 along the slide rail 410.

After the partition structure 600 slides to a proper position, the side end of the partition structure 600 may be fixed to the slide rail 410 by angle steel and bolts, so as to finally fix the position.

Regarding the specific structure of the door partition, in some embodiments of the present application, referring to fig. 15 and 16, the door partition includes a split escape door partition 610, the split escape door partition 610 includes a first door frame 611, and the first door frame 611 is provided with a split door 612, and further includes auxiliary accessories such as an escape lock, a door shaft, and a lock rod.

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, so as to achieve the sliding installation of the escape door partition 610.

In the structure shown in fig. 15, the half-split escape door partition 610 has two side support frames provided oppositely in the longitudinal direction of the module.

In some embodiments of the present application, referring to fig. 15 and 17, the door partition further includes a bidirectional single-opening/closing door partition 620, the bidirectional single-opening/closing door partition 620 includes a second door frame 621, and a bidirectional single-opening/closing door 622 is disposed on the second door frame 621, and further includes auxiliary accessories such as a door closer, a door shaft, and the like.

The bottom of the second door frame 621 is slidably connected with the base 110, and the top of the second door frame 621 is slidably connected with the top beam 120, so that the sliding installation of the bidirectional single-opening door closer door partition 620 is realized.

In the structure shown in fig. 15, a bidirectional single-opening/closing door partition 620 is provided along the width direction of the cabin, and partitions the internal space of the cabin into two compartments, i.e., a left compartment and a right compartment.

For the specific structure of the supporting partition 630, in some embodiments of the present application, the supporting partition 630 is a supporting frame 631 formed by welding and/or assembling a section bar and/or a plate, so as to meet the requirement of supporting strength.

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, so as to achieve the sliding installation of the support frame 631.

The outer side of the support frame 631 may be provided with a fireproof material and a decorative surface to improve fireproof performance and external beauty.

In the structure shown in fig. 18 and 19, the supporting partition 630 is arranged along the length direction of the cabin, and the top of the supporting frame 631 is provided with a hoisting part 500 for hoisting, so as to facilitate the hoisting operation.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. A method for installing a prefabricated cabin for a transformer substation is characterized in that,

the prefabricated cabin is provided with one layer or a plurality of layers, and each layer of the prefabricated cabin is composed of a plurality of modules;

each module is an independent transportation and installation unit;

the installation method of the prefabricated cabin comprises the following steps:

each module is installed in a top hoisting mode;

the bottom and the top of the module are provided with positioning structures as required, the left and right adjacent modules are spliced in a horizontal positioning mode through the positioning structures, and the upper and lower adjacent modules are spliced in an upper and lower positioning mode through the positioning structures.

2. The method of installing a prefabricated cabin for a substation according to claim 1,

the installation method comprises the following steps:

selecting a certain module in a first layer of prefabricated cabin as a first installation module I, and respectively arranging a positioning structure at one end and/or two ends of the bottom of the first installation module I;

fixing the first installation module I to a prefabricated cabin foundation;

installing a positioning structure at the bottom of one end of a second installation module I, and installing the other end of the second installation module I on a positioning structure which is adjacent to the second installation module I and arranged on the first installation module I to realize the splicing of the first installation module I and the second installation module I in the horizontal direction;

by analogy, horizontal splicing of all modules in the first layer of prefabricated cabin is completed, and a positioning structure is not required to be installed on the last module;

selecting a certain module in an Nth layer (N =2,3.. The..) prefabricated cabin as a first installation module N, installing a positioning structure at the top of the first layer, and respectively arranging positioning structures at one end and/or two ends of the bottom of the first installation module N;

fixing the first installation module N to the top of the first layer of prefabricated cabin;

installing a positioning structure at the bottom of one end of a second installation module N, and installing the other end of the second installation module N on a positioning structure which is adjacent to the positioning structure and arranged on the first installation module N to realize the splicing of the first installation module N and the second installation module N in the horizontal direction;

and by analogy, horizontal splicing of all modules in the N-th layer of prefabricated cabin is completed, and a module installed at last does not need to be provided with a positioning structure.

3. The method of installing a prefabricated cabin for a substation according to claim 2,

and selecting the first module at the end part of each layer of prefabricated cabin as a first installation module.

4. The method of installing a prefabricated cabin for a substation according to any one of claims 1 to 3,

modules in each layer of the prefabricated cabin are divided according to functions and comprise electrical equipment modules and auxiliary function modules, and the electrical equipment modules and the auxiliary function modules are prefabricated and wired in a factory respectively.

5. The method of installing a prefabricated cabin for a substation according to claim 4,

a supporting frame tube structure and electrical equipment are arranged in a cabin body of the electrical equipment module, and at least one of a bus channel, a cable channel and a pressure relief channel is arranged in an internal space surrounded by the supporting frame tube structure so that the electrical equipment can be used for wiring and pressure relief;

the electrical equipment and/or the support frame-tube structure are/is slidably arranged on the base of the cabin.

6. The method of installing a prefabricated cabin for a substation according to any one of claims 1 to 3,

the size of each module is standard module size;

the standard module size = the minimum size in each module + an integer multiple of a reference module size, and the reference module size is a preset fixed value.

7. The method of installing a prefabricated cabin for a substation according to any one of claims 1 to 3,

partition structures for partitioning chambers and supporting are arranged in the module in advance according to requirements, and the partition structures are arranged in a sliding mode along the length direction or the width direction of the prefabricated cabin;

and after the modules are spliced, adjusting the position of the partition structure, and finally fixing.

8. The method of installing a prefabricated cabin for a substation according to any one of claims 1 to 3,

the top of the module positioned at the lower layer is provided with a first fixed beam, and the first fixed beam is provided with a plurality of strip-shaped first fixed holes along the length direction;

the bottom of the module positioned on the upper layer is provided with a second fixed beam, and the second fixed beam is provided with a plurality of strip-shaped second fixed holes along the length direction;

the second fixing beam is provided with an anti-rotation fixing part, and the anti-rotation fixing part is provided with a nut;

after the module on the upper layer is stacked above the module on the lower layer, the bolt penetrates through the first fixing hole, the second fixing hole and the nut from bottom to top.

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