Prefabricated cabin and transformer substation

Abstract

The utility model belongs to the field of power transformation and distribution equipment, and particularly relates to a prefabricated cabin and a transformer substation, the prefabricated cabin comprises N cabin sections and N-1 plug-in devices, N is an integer greater than or equal to 2, the N cabin sections are sequentially arranged along the length direction, the adjacent cabin sections are detachably connected through the plug-in devices, each plug-in device comprises a female groove assembly and a male head assembly, the female groove assembly is arranged at the connecting end of the Mth cabin section and the (M + 1) th cabin section, M + 1 is smaller than or equal to N, a positioning groove is formed in the inner side of the female groove assembly, the male head assembly is arranged at the connecting end of the (M + 1) th cabin section and the Mth cabin section, a positioning boss is arranged on the outer side of the male head assembly, and the positioning boss is located in the positioning groove. The adjacent cabin sections are detachably connected through the plugging devices, so that the field splicing workload of the cabin sections is reduced, the construction period of the transformer substation is shortened, and secondary disassembly and modification are facilitated.

Description

Technical Field

[0001] The present application belongs to the field of power transformation and distribution equipment, and specifically relates to a prefabricated cabin and a substation. Background Art

[0002] Prefabricated substations are produced in factories, with most of the assembly and commissioning work completed in the factory. Compared with traditional substations, this reduces on-site construction time and the construction period can be shortened by 50% or even more, while also reducing the construction cost of the substation.

[0003] In order to facilitate transportation, the prefabricated cabin of the prefabricated substation is usually prefabricated in sections, and then multiple cabin sections are spliced ​​together to form a prefabricated cabin when the station is built. In the prior art, adjacent cabin sections of the prefabricated cabin are connected by welding or fasteners.

[0004] Welding adjacent compartments significantly increases on-site workload, and secondary disassembly and modification requires cutting through the welds, which is labor-intensive and inconvenient. Fasteners connecting adjacent compartments require drilling various process holes, disrupting the overall compartment structure and increasing on-site workload. Utility Model Content

[0005] The purpose of this application is to provide a prefabricated cabin and substation, which at least reduces the workload of on-site cabin splicing and shortens the construction period of the substation.

[0006] To achieve the above-mentioned object, the present application provides a prefabricated cabin, comprising N cabin sections and N-1 plug-in devices, where N is an integer greater than or equal to 2, the N cabin sections being arranged in sequence along the length direction, and adjacent cabin sections being detachably connected via the plug-in devices, the plug-in devices comprising:

[0007] A mother slot assembly is provided at the connection end between the Mth compartment and the M+1th compartment, where M+1 is less than or equal to N, and a positioning groove is provided on the inner side of the mother slot assembly;

[0008] A male component is provided at the connection end between the M+1 compartment and the M compartment. A positioning boss is provided on the outer side of the male component, and the positioning boss is located in the positioning groove.

[0009] Optionally, the female trough assembly and the male head assembly are both bent into a U-shaped structure, and the U-shaped structure includes two cantilever portions and a connecting portion connecting the two cantilever portions, the connecting portion of the female trough assembly is connected to the bottom plate of the Mth compartment section, the cantilever portion of the female trough assembly is connected to the side panel of the Mth compartment section, the connecting portion of the male head assembly is connected to the bottom plate of the M+1 compartment section, and the cantilever portion of the male head assembly is connected to the side panel of the M+1 compartment section.

[0010] Optionally, the female channel assembly includes a channel steel and a first positioning member, the cross-section of the channel steel is the U-shaped structure, the cantilever portion of the channel steel is connected to the Mth cabin section, the first positioning member is partially disposed within the groove of the channel steel and partially located outside the groove of the channel steel, and the center area of ​​the first positioning member is recessed toward a side close to the connection portion of the channel steel to form the positioning groove;

[0011] The male head component includes a rectangular tube and a second positioning member, one side of the rectangular tube is connected to the M+1 compartment, the second positioning member is arranged on the side of the rectangular tube close to the female groove component, and the center area of ​​the second positioning member protrudes toward the side away from the rectangular tube to form the positioning boss.

[0012] Optionally, an assembly gap is formed between the first positioning member and the second positioning member.

[0013] Optionally, the plug-in device further includes a water stop strip, and a receiving groove is provided on the top surface of the positioning boss opposite to the bottom surface of the positioning groove, and the water stop strip is arranged in the receiving groove, and the water stop strip contacts the bottom surface of the positioning groove.

[0014] Optionally, the water stop strip is a water-swelling structural member or a flexible structural member.

[0015] Optionally, the plug-in device also includes a push plate and a push bolt, the push plate is arranged at the bottom of the accommodating groove, the water stop strip is arranged between the push plate and the bottom surface of the positioning groove, and the push bolt is arranged in the male head assembly for pushing the push plate to squeeze the water stop strip.

[0016] Optionally, a plurality of positioning holes are provided at the bottom of the first compartment, and the positioning holes are used to cooperate with positioning pins on the foundation to position the first compartment, and a hanging point is provided at the top of each compartment.

[0017] The present application also provides a substation, comprising:

[0018] the prefabricated cabin;

[0019] The power transformation equipment is arranged in the prefabricated cabin.

[0020] Optionally, the substation further includes a waterproof sealing gasket, the prefabricated cabin is arranged on the foundation, the waterproof sealing gasket is arranged between the foundation and the prefabricated cabin, and the waterproof sealing gasket at least seals the joint between the Mth cabin section and the M+1th cabin section.

[0021] The prefabricated cabin and substation disclosed in this application have the following beneficial effects:

[0022] In the present application, the prefabricated cabin includes N cabin sections and N-1 plug-in devices, where N is an integer greater than or equal to 2. The N cabin sections are arranged in sequence along the length direction, and adjacent cabin sections are detachably connected via the plug-in devices. The plug-in devices include a female slot assembly and a male head assembly. The female slot assembly is arranged at the connection end between the Mth cabin section and the M+1th cabin section, where M+1 is less than or equal to N. A positioning groove is provided on the inner side of the female slot assembly, and a male head assembly is arranged at the connection end between the M+1th cabin section and the Mth cabin section. A positioning boss is provided on the outer side of the male head assembly, and the positioning boss is located in the positioning groove. Adjacent cabin sections are detachably connected via the plug-in devices, which reduces the workload of on-site cabin section splicing, shortens the construction period of the substation, and facilitates secondary dismantling and modification.

[0023] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0024] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0026] Figure 1 It is a structural diagram of a substation in an embodiment of the present application.

[0027] Figure 2 This is a schematic diagram of two compartments connected by a plug-in device in an embodiment of the present application.

[0028] Figure 3 It is a cross-sectional schematic diagram of the cantilever portion of the plug-in device in an embodiment of the present application.

[0029] Figure 4 yes Figure 3 A partial enlarged schematic diagram of position A in the middle.

[0030] Figure 5 It is a cross-sectional schematic diagram of the connecting portion of the plug-in device in an embodiment of the present application.

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the cabin section in the embodiment of the present application.

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of the foundation in the embodiment of the present application.

[0033] Figure 8 yes Figure 7 A partial enlarged schematic diagram of position B in the middle.

[0034] Description of reference numerals:

[0035] 10. Prefabricated cabin; 100. Cabin section; 110. Top plate; 120. Bottom plate; 130. Side plate; 140. Middle partition; 150. Lifting point; 160. Temporary support; 200. Female channel assembly; 210. Channel steel; 220. First positioning member; 221. Positioning groove; 300. Male connector assembly; 310. Rectangular tube; 311. Process hole; 320. Second positioning member; 321. Positioning boss; 322. Accommodation groove; 400. Waterstop; 510. Push plate; 520. Push bolt;

[0036] 20. Foundation; 21. Positioning pin; 30. Waterproof sealing gasket. DETAILED DESCRIPTION

[0037] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0038] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0039] The present application is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0040] See also Figures 1 to 5As shown, in this embodiment, the prefabricated cabin 10 includes N cabin sections 100 and N-1 plug-in devices, where N is an integer greater than or equal to 2. The N cabin sections 100 are arranged in sequence along the length direction, and adjacent cabin sections 100 are detachably connected via plug-in devices. Each cabin section 100 includes a top plate 110, a bottom plate 120, and side plates 130 opposite to each other in the width direction. The side of the first cabin section 100 away from the second cabin section 100 and the side of the Nth cabin section 100 away from the N-1th cabin section 100 are further provided with side plates 130 in the length direction. The top plate 110, the bottom plate 120, and the side plates 130 form a cabin for installing power substation equipment.

[0041] For example, the prefabricated cabin 10 includes three cabin sections 100. The first cabin section 100 and the second cabin section 100 are connected by a plug-in device, and the second cabin section 100 and the third cabin section 100 are also connected by a plug-in device. The side of the first cabin section 100 facing away from the second cabin section 100 and the side of the third cabin section 100 facing away from the second cabin section 100 are also provided with longitudinal side panels 130. The second cabin section 100 is provided with only width side panels 130.

[0042] The plug-in device includes a female connector assembly 200 and a male connector assembly 300. The female connector assembly 200 is located at the junction of the Mth and M+1th cabin sections 100, where M+1 is less than or equal to N. A positioning groove 221 is provided on the inner side of the female connector assembly 200, with the opening of the positioning groove 221 of the female connector assembly 200 facing the inner side of the prefabricated cabin 10. The male connector assembly 300 is located at the junction of the M+1th and Mth cabin sections 100. A positioning boss 321 is provided on the outer side of the male connector assembly 300, which is located within the positioning boss 321.

[0043] During assembly of the prefabricated cabin 10, the first cabin section 100 is placed on the foundation 20, and the second cabin section 100 is hoisted so that the positioning boss 321 of the male assembly 300 of the second cabin section 100 is aligned with the positioning groove 221 of the female assembly 200. The second cabin section 100 is then slowly lowered and the male assembly 300 is inserted into the female assembly 200, thereby completing the splicing of the first and second cabin sections 100. To facilitate assembly, the lower end of the positioning boss 321 of the male assembly 300 can be chamfered or rounded to facilitate quick positioning.

[0044] In existing technology, adjacent cabin sections of prefabricated cabins are connected by welding or fasteners. Welding significantly increases on-site workload, and secondary disassembly and modification require cutting through the welds, which is labor-intensive and inconvenient. Fasteners, however, require drilling various process holes, disrupting the overall cabin structure and increasing on-site workload.

[0045] In this embodiment, the prefabricated cabin 10 includes N cabin sections 100 and N-1 plug-in devices, where N is an integer greater than or equal to 2. The N cabin sections 100 are arranged sequentially along the length, and adjacent cabin sections 100 are detachably connected via the plug-in devices. The plug-in devices include a female slot assembly 200 and a male connector assembly 300. The female slot assembly 200 is positioned at the junction between the Mth cabin section 100 and the M+1th cabin section 100, where M+1 is less than or equal to N. A positioning groove 221 is provided on the inner side of the female slot assembly 200, and a male connector assembly 300 is positioned at the junction between the M+1th cabin section 100 and the Mth cabin section 100. A positioning boss 321 is provided on the outer side of the male connector assembly 300, which is located within the positioning groove 221. The detachable connection of adjacent cabin sections 100 via the plug-in devices reduces the workload of on-site cabin section 100 assembly, shortens the substation construction period, and facilitates secondary disassembly and modification.

[0046] In addition, adjacent cabin sections 100 are detachably connected via a plug-in device, which does not damage the cabin structure of the prefabricated cabin 10, thereby improving the wind and earthquake resistance of the prefabricated cabin 10 and reducing the risk of power outages due to substation failures.

[0047] In some embodiments, both the female trough assembly 200 and the male assembly 300 are bent into a U-shaped structure, which includes two cantilevered portions and a connecting portion connecting the two cantilevered portions. That is, both the female trough assembly 200 and the male assembly 300 include a cantilevered portion and a connecting portion. The connecting portion of the female trough assembly 200 is connected to the bottom plate 120 of the Mth compartment 100, and the cantilevered portion of the female trough assembly 200 is connected to the side plate 130 of the Mth compartment 100. The connecting portion of the male assembly 300 is connected to the bottom plate 120 of the M+1th compartment 100, and the cantilevered portion of the male assembly 300 is connected to the side plate 130 of the M+1th compartment 100.

[0048] The female trough assembly 200 and the male head assembly 300 are both bent into a U-shaped structure, that is, the female trough assembly 200 and the male head assembly 300 are arranged along the edges of the side panels 130 and the bottom panels 120 of the prefabricated cabin 10, and the side panels 130 and the bottom panels 120 of adjacent cabin sections 100 are connected, which improves the connection strength and is beneficial to improving the wind resistance and earthquake resistance of the prefabricated cabin 10.

[0049] It should be noted that the female trough assembly 200 and the male assembly 300 can both be bent into a U-shaped structure, and the female trough assembly 200 and the male assembly 300 are arranged along the edges of the side panels 130 and the bottom panel 120 of the cabin body, but are not limited to this. The female trough assembly 200 and the male assembly 300 can also be arranged only on the edges of the side panels 130, depending on the specific situation.

[0050] In some embodiments, the female channel assembly 200 includes a channel steel 210 and a first locating member 220. The channel steel 210 has a U-shaped cross-section. The opening of the groove of the channel steel 210 faces the male assembly 300. The cantilever portion on one side of the channel steel 210 is connected to the M-th compartment 100, while the cantilever portion on the other side of the channel steel 210 contacts or has a small clearance fit with the M+1 compartment 100. The first locating member 220 is partially disposed within the groove of the channel steel 210 and partially located outside the groove of the channel steel 210. The first locating member 220 can be formed by bending a metal plate. The ends of the metal plate are bent toward the side near the channel steel 210, forming flanges located inside the cantilever portion of the channel steel 210. The center of the first locating member 220 is recessed toward the connection portion of the channel steel 210 to form a locating groove 221. The end surface of the first locating member 220 near the male assembly 300 is located outside the groove of the channel steel 210 to prevent interference between the cantilever portion of the channel steel 210 and the male assembly 300.

[0051] The male connector assembly 300 includes a rectangular tube 310 and a second locating member 320. One side of the rectangular tube 310 is connected to the M+1 compartment 100, while the other side of the rectangular tube 310 is in contact with or has a small clearance fit with the M compartment 100. The second locating member 320 is positioned on the side of the rectangular tube 310 near the female connector assembly 200. The second locating member 320 can be formed by bending a metal sheet. The center of the second locating member 320 protrudes toward the side away from the rectangular tube 310 to form a locating boss 321.

[0052] The female groove assembly 200 and the male head assembly 300 are both hollow metal structural parts. The female groove assembly 200 and the male head assembly 300 have high structural strength and simple manufacturing process, which is conducive to reducing the manufacturing cost of the prefabricated cabin 10.

[0053] It should be noted that adjacent compartments 100 are detachably connected via a plug-in device comprising a female slot assembly 200 and a male connector assembly 300. The female slot assembly 200 is connected to the Mth compartment 100, and the male connector assembly 300 is connected to the M+1th compartment 100. The female slot assembly 200 connected to the Mth compartment 100 protrudes relative to the top panel 110 of the Mth compartment 100, meaning that the top panel 110 of the Mth compartment 100 does not cover the female slot assembly 200. The male connector assembly 300 connected to the M+1th compartment 100 is recessed relative to the top panel 110 of the M+1th compartment 100, meaning that the top panel 110 of the M+1th compartment 100 covers the male connector assembly 300. The plug-in device connecting the Mth and M+1th compartments 100 is covered by the top panel 110 of the M+1th compartment 100. For example, the female slot assembly 200 is connected to the first compartment 100 , the male head assembly 300 is connected to the second compartment 100 , and the top plate 110 of the second compartment 100 covers the plug-in device connecting the first compartment 100 and the second compartment 100 .

[0054] In some embodiments, an assembly gap is formed between the first positioning member 220 and the second positioning member 320. Specifically, the positioning groove 221 and the positioning boss 321 form an assembly gap, and an assembly gap is formed between the opposing end surfaces of the first positioning member 220 and the second positioning member 320.

[0055] An assembly gap is formed between the first positioning member 220 and the second positioning member 320 to avoid the adjacent compartments 100 from being unable to be smoothly plugged in due to factors such as assembly errors and hoisting deformation.

[0056] In some embodiments, the plug-in device further includes a water stop strip 400. A receiving groove 322 is provided on the top surface of the positioning boss 321 opposite to the bottom surface of the positioning groove 221. The water stop strip 400 is disposed within the receiving groove 322, and the water stop strip 400 contacts the bottom surface of the positioning groove 221. The cross-sections of the receiving groove 322, the positioning groove 221, and the water stop strip 400 are all rectangular. The thickness of the water stop strip 400 is greater than the depth of the receiving groove 322, that is, the water stop strip 400 is partially located within the receiving groove 322 and partially located outside the receiving groove 322. The water stop strip 400 is partially located within the receiving groove 322 and partially located outside the receiving groove 322, which can prevent the water stop strip 400 from being unable to press against the bottom surface of the positioning groove 221, thereby affecting the water stop strip 400's prevention capability.

[0057] A water stop strip 400 is provided between the top surface of the positioning boss 321 and the bottom surface of the positioning groove 221 to prevent water seepage at the joints of the prefabricated cabin 10 and reduce the risk of power outage due to faults in the substation.

[0058] It should be noted that the cross-sections of the accommodating groove 322, the positioning groove 221 and the water stop strip 400 are all rectangular, but are not limited to this. The cross-sections of the accommodating groove 322, the positioning groove 221 and the water stop strip 400 can also be trapezoidal or other shapes, depending on the specific situation.

[0059] For example, the waterstop strip 400 is a water-swellable structural member, i.e., the waterstop strip 400 can be made of a water-swellable material. The waterstop strip 400 is a water-swellable structural member, and can contact or fit with a small gap between the waterstop strip 400 and the bottom surface of the positioning groove 221. When water accumulates outside the prefabricated cabin 10 or it rains, the seeping water contacts the waterstop strip 400, causing it to expand, thereby compressing the bottom surface of the positioning groove 221, preventing water or rainwater from entering the prefabricated cabin 10.

[0060] The water stop strip 400 is a structural component that expands when exposed to water. The water stop strip 400 and the bottom surface of the positioning groove 221 can be in contact or fitted with a small gap, which can prevent the water stop strip 400 from getting stuck during assembly, resulting in the adjacent compartments 100 being unable to be smoothly plugged in.

[0061] It should be noted that the water stop strip 400 is a water-swelling structural component, that is, the water stop strip 400 can be made of water-swelling material, but is not limited to this. The water stop strip 400 can also be a flexible structural component, and the water stop strip 400 is made of flexible rubber or other materials, depending on the specific situation.

[0062] In some embodiments, the plug-in device further includes a push plate 510 and a push bolt 520. The push plate 510 is disposed at the bottom of the receiving groove 322, and the water stop strip 400 is disposed between the push plate 510 and the bottom surface of the positioning groove 221. The push bolt 520 is disposed within the male assembly 300 and is used to push the push plate 510 to compress the water stop strip 400. Specifically, a process hole 311 may be provided in the rectangular tube 310, and a threaded hole may be provided at the bottom of the receiving groove 322 of the second positioning member 320. The push bolt 520 may be installed in the threaded hole at the bottom of the receiving groove 322 through the process hole 311. Because the rectangular tube 310 is disposed on the inside, even if the process hole 311 is provided in the rectangular tube 310, water will not seep through the process hole 311.

[0063] When assembling the prefabricated cabin 10, before the adjacent cabin sections 100 are plugged in, the length of the push bolt 520 extending into the receiving groove 322 is relatively short, and there is a large gap between the water stop strip 400 and the bottom surface of the positioning groove 221, to avoid the influence of factors such as assembly errors and lifting deformation, which may cause the adjacent cabin sections 100 to be unable to be plugged in smoothly; after the adjacent cabin sections 100 are plugged in, the push bolt 520 can be rotated through the process hole 311 to increase the length of the push bolt 520 extending into the receiving groove 322, thereby pushing the push plate 510 to squeeze the water stop strip 400, so that the water stop strip 400 is close to the bottom surface of the positioning groove 221.

[0064] The plug-in device also includes a push plate 510 and a push bolt 520. The position of the water stop strip 400 can be adjusted by the push plate 510 and the push bolt 520, so that a gap is formed between the water stop strip 400 and the bottom surface of the positioning groove 221 during assembly, ensuring that adjacent cabin sections 100 can be plugged in smoothly, and that the water stop strip 400 is close to the bottom surface of the positioning groove 221 after assembly, thereby avoiding water seepage at the joints of the prefabricated cabin 10.

[0065] It should be noted that both the female channel assembly 200 and the male head assembly 300 are bent into a U-shaped structure. The cantilever portion of the female channel assembly 200 and the male head assembly 300 (the portion connected to the side plate 130) can be provided with a push plate 510 and a push bolt 520, while the connection portion of the female channel assembly 200 and the male head assembly 300 (the portion connected to the bottom plate 120) does not need to be provided with a push plate 510 and a push bolt 520. Figure 5 As shown, the plug-in device is connected to the base plate 120, with the male component 300 on top and the female groove component 200 on the bottom. The water stop strip 400 can be pressed by the male component 300, and there is no need to additionally set up a push plate 510 and a push bolt 520.

[0066] In some embodiments, the cantilever portion on the first side of the channel steel 210 is welded to the Mth cabin section 100, and the cantilever portion on the second side of the channel steel 210 is in contact with or fitted with a small gap in the M+1th cabin section 100. The first side of the rectangular tube 310 is welded to the M+1th cabin section 100, and the second side of the rectangular tube 310 is in contact with or fitted with a small gap in the Mth cabin section 100. Waterproof paint or glue can be applied between the cantilever portion on the second side of the channel steel 210 and the M+1th cabin section 100, as well as between the second side of the rectangular tube 310 and the Mth cabin section 100, to further enhance the waterproofing ability of the joints of the prefabricated cabin 10. In addition, the welds between the channel steel 210, the rectangular tube 310 and the cabin section 100 can also be painted or glued to avoid water seepage caused by cold welding and to prevent rust at the welds.

[0067] The first layer of waterproofing is formed on the outside of the joint of the prefabricated cabin 10 by painting or gluing, and a water stop strip 400 is set between the top surface of the positioning boss 321 and the bottom surface of the positioning groove 221 to form a second layer of waterproofing. The double-layer waterproofing improves the waterproofing level and further avoids water seepage at the joint of the prefabricated cabin 10.

[0068] In some embodiments, each cabin section 100 includes a top panel 110, a bottom panel 120, and side panels 130 extending in the width direction. The side of the first cabin section 100 facing away from the second cabin section 100 and the side of the Nth cabin section 100 facing away from the N-1th cabin section 100 are further provided with side panels 130 extending in the length direction. The top panel 110, bottom panel 120, and side panels 130 enclose a compartment for installing power transformer equipment. Furthermore, at least one intermediate partition 140 may be provided between the top panel 110 and bottom panel 120, forming a prefabricated cabin 10 with multiple compartments.

[0069] The prefabricated cabin 10 also includes a staircase connecting to the second-level cabin or cabins above it. The prefabricated cabin 10 also includes an elevator or staircase connecting adjacent cabins for transporting maintenance personnel and equipment between levels. The staircase connects to the second-level cabin or cabins above it. In other words, while the first-level cabin cannot be directly accessed from outside the prefabricated cabin 10, the staircase allows access to the second-level cabin and then descends to the first-level cabin via the second-level cabin.

[0070] The prefabricated cabin 10 goes up to the second cabin via a boarding ladder, and then goes down to the first cabin via the second cabin. The prefabricated cabin 10 is not provided with a hatch for entering and exiting the first cabin to avoid water seepage at the hatch that affects the waterproof grade of the prefabricated cabin 10.

[0071] It should be noted that the prefabricated cabin 10 goes up to the second-level cabin via a boarding ladder, and then goes down to the first-level cabin through the second-level cabin. The prefabricated cabin 10 is not provided with a hatch for entering and exiting the first-level cabin, but is not limited to this. The prefabricated cabin 10 can be provided with a waterproof door for entering and exiting the first-level cabin. When there is no water accumulation outside the prefabricated cabin 10, entry and exit and escape can be made through the waterproof door, depending on the specific situation.

[0072] See also Figures 6 to 8 As shown, a hanging point 150 is provided on the top of each cabin section 100 , that is, it is provided on the side of the top plate 110 away from the bottom plate 120 .

[0073] In the prior art, the prefabricated cabin 10 is assembled by bottom hoisting, which is difficult to complete in one step. In this embodiment, the lifting point 150 is set at the top of the cabin section 100, which allows for top hoisting in one step, thereby improving the assembly efficiency of the prefabricated cabin 10 and shortening the substation construction period.

[0074] In some embodiments, each cabin section 100 includes a top plate 110, a bottom plate 120, and side plates 130 opposite to each other in the width direction. Side plates 130 are also provided in the length direction on the side of the first cabin section 100 away from the second cabin section 100 and on the side of the Nth cabin section 100 away from the N-1th cabin section 100. The top plate 110, the bottom plate 120, and the side plates 130 form a cabin for installing power transformer equipment. At least one intermediate partition 140 may also be provided between the top plate 110 and the bottom plate 120 to form a prefabricated cabin 10 with multiple cabins. Taking the prefabricated cabin 10 as a double-deck prefabricated cabin as an example, the upper cabin may also be provided with multiple temporary supports 160, which connect the top plate 110 and the intermediate partition 140. After the prefabricated cabin 10 is assembled, the temporary supports 160 can be removed.

[0075] Since the lifting point 150 is set at the top of the cabin section 100, the top plate 110 and the side plate 130 are subjected to a large tensile force, and a temporary support 160 is set in the upper cabin. The temporary support 160 connects the top plate 110 and the middle partition 140, which improves the structural strength of the prefabricated cabin 10 and avoids deformation and damage of the prefabricated cabin 10 due to top lifting.

[0076] It should be noted that, according to the weight of the substation equipment inside the prefabricated cabin 10, for a multi-layer prefabricated cabin 10, a temporary support 160 may be provided for each cabin layer as appropriate. For a single-sided prefabricated cabin 10, a temporary support 160 may also be provided between the top plate 110 and the bottom plate 120 as appropriate.

[0077] In some embodiments, a plurality of positioning holes are provided at the bottom of the first compartment 100 , and the positioning holes are used to cooperate with the positioning pins 21 on the foundation 20 to position the first compartment 100 .

[0078] When the prefabricated cabin 10 is assembled, the first cabin section 100 is positioned by the positioning pins 21 on the foundation 20. After the first cabin section 100 is in place, it can be reinforced. The second cabin section 100 and subsequent cabin sections 100 are positioned by plug-in devices, which omits the traditional bolt fixing, seam welding and other workload after positioning, improves the assembly efficiency of the prefabricated cabin 10, and shortens the construction period of the substation.

[0079] The present application also provides a substation, which includes the prefabricated cabin 10 disclosed above and power transformation equipment, and the power transformation equipment is arranged in the prefabricated cabin 10.

[0080] In this embodiment, the substation includes a prefabricated cabin 10, which includes N cabin sections 100 and N-1 plug-in devices, where N is an integer greater than or equal to 2. The N cabin sections 100 are arranged sequentially along the length, and adjacent cabin sections 100 are detachably connected via the plug-in devices. The plug-in devices include a female slot assembly 200 and a male connector assembly 300. The female slot assembly 200 is disposed at the connection between the Mth cabin section 100 and the M+1th cabin section 100, where M+1 is less than or equal to N. A positioning groove 221 is provided on the inner side of the female slot assembly 200, and a male connector assembly 300 is disposed at the connection between the M+1th cabin section 100 and the Mth cabin section 100. A positioning boss 321 is provided on the outer side of the male connector assembly 300, and the positioning boss 321 is located within the positioning groove 221. The detachable connection of adjacent cabin sections 100 via the plug-in devices reduces the workload of on-site cabin section 100 assembly, shortens the substation construction period, and facilitates secondary disassembly and modification.

[0081] In some embodiments, the substation further includes a waterproof sealing gasket 30. The prefabricated cabin 10 is disposed on the foundation 20, and the waterproof sealing gasket 30 is disposed between the foundation 20 and the prefabricated cabin 10. The waterproof sealing gasket 30 seals at least the joint between the Mth cabin section 100 and the M+1th cabin section 100. For example, the shape of the foundation 20 matches the vertical projection of the side panels 130 and the joint, and the waterproof sealing gasket 30 is disposed on the contact surface between the foundation 20 and the prefabricated cabin 10. The waterproof sealing gasket 30 is provided with a clearance hole at the positioning pin 21, and the positioning pin 21 passes through the clearance hole and is inserted into the positioning hole at the bottom of the first cabin section 100.

[0082] For the joints between adjacent side panels 130 of the prefabricated cabin 10, waterproof paint or glue can be applied between the cantilever portion of the second side of the channel steel 210 and the M+1 compartment section 100, as well as between the second side of the rectangular tube 310 and the M compartment section 100, to form a first layer of waterproofing on the side; a water stop strip 400 is provided between the top surface of the positioning boss 321 and the bottom surface of the positioning groove 221 to form a second layer of waterproofing. For the joints between adjacent bottom panels 120 of the prefabricated cabin 10, after the prefabricated cabin 10 is assembled, the joints are blocked by the prefabricated cabin 10, making it inconvenient to apply waterproof paint or glue. A waterproof sealing gasket 30 is provided between the foundation 20 and the prefabricated cabin 10 to form the first layer of waterproofing at the bottom, preventing water from seeping into the bottom of the prefabricated cabin 10 and extending into the cabin body through the bottom joints, thereby further improving the waterproofing level of the prefabricated cabin 10.

[0083] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0084] In this application, unless otherwise specified or limited, terms such as "assembly" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0085] In the description of this specification, the reference terms "some embodiments", "exemplarily", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0086] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent application.

Claims

1. A prefabricated cabin, characterized in that: The invention comprises N compartments and N-1 plug-in devices, where N is an integer greater than or equal to 2, and the N compartments are arranged in sequence along the length direction, and adjacent compartments are detachably connected through the plug-in devices, and the plug-in devices include: A mother slot assembly is provided at the connection end between the Mth compartment and the M+1th compartment, where M+1 is less than or equal to N, and a positioning groove is provided on the inner side of the mother slot assembly; A male component is provided at the connection end between the M+1 compartment and the M compartment. A positioning boss is provided on the outer side of the male component, and the positioning boss is located in the positioning groove.

2. The prefabricated cabin according to claim 1, characterized in that: The female trough assembly and the male assembly are both bent into a U-shaped structure, and the U-shaped structure includes two cantilever parts and a connecting part connecting the two cantilever parts. The connecting part of the female trough assembly is connected to the bottom plate of the Mth compartment section, the cantilever part of the female trough assembly is connected to the side plate of the Mth compartment section, the connecting part of the male assembly is connected to the bottom plate of the M+1 compartment section, and the cantilever part of the male assembly is connected to the side plate of the M+1 compartment section.

3. The prefabricated cabin according to claim 2, characterized in that: The female channel assembly includes a channel steel and a first positioning member. The cross-section of the channel steel is the U-shaped structure. The cantilever portion of the channel steel is connected to the Mth compartment section. The first positioning member is partially disposed within the groove of the channel steel and partially located outside the groove of the channel steel. The center area of ​​the first positioning member is recessed toward the side close to the connection portion of the channel steel to form the positioning groove. The male head component includes a rectangular tube and a second positioning member, one side of the rectangular tube is connected to the M+1 compartment, the second positioning member is arranged on the side of the rectangular tube close to the female groove component, and the center area of ​​the second positioning member protrudes toward the side away from the rectangular tube to form the positioning boss.

4. The prefabricated cabin according to claim 3, characterized in that: An assembly gap is formed between the first positioning member and the second positioning member.

5. The prefabricated cabin according to claim 2, characterized in that: The plug-in device also includes a water stop strip. The top surface of the positioning boss opposite to the bottom surface of the positioning groove is provided with a receiving groove. The water stop strip is arranged in the receiving groove and contacts the bottom surface of the positioning groove.

6. The prefabricated cabin according to claim 5, characterized in that: The water stop strip is a water-expanding structural member or a flexible structural member.

7. The prefabricated cabin according to claim 5, characterized in that: The plug-in device also includes a push plate and a push bolt. The push plate is arranged at the bottom of the accommodating groove, the water stop strip is arranged between the push plate and the bottom surface of the positioning groove, and the push bolt is arranged in the male head assembly for pushing the push plate to squeeze the water stop strip.

8. The prefabricated cabin according to claim 1, characterized in that: A plurality of positioning holes are provided at the bottom of the first compartment, and the positioning holes are used to cooperate with positioning pins on the foundation to position the first compartment, and a hanging point is provided at the top of each compartment.

9. A substation, characterized in that: include: The prefabricated cabin according to any one of claims 1 to 8; The power transformation equipment is arranged in the prefabricated cabin.

10. The substation according to claim 9, characterized in that: The substation further includes a waterproof sealing gasket. The prefabricated cabin is arranged on a foundation. The waterproof sealing gasket is arranged between the foundation and the prefabricated cabin. The waterproof sealing gasket at least seals the joint between the Mth cabin section and the M+1th cabin section.

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