Prefabricated main transformer firewall

Abstract

The utility model discloses a prefabricated main transformer firewall, and aims to solve the problems that the construction period is long, the field operation amount is large, and the existing prefabricated construction is large in wallboard size, single in stand column structure form, high in field requirement and poor in adaptability. The prefabricated main transformer firewall comprises a foundation assembly, a stand column assembly, a wallboard assembly, a bottom beam and a top beam, the foundation assembly, the stand column assembly, the bottom beam and the top beam form a main body frame of the firewall, the wallboard assembly is arranged between a first stand column and a second stand column, the wallboard assembly is limited through a first limiting groove and a second limiting groove, and then the firewall is formed. The overall structure size of the firewall can be adjusted through the second stand column, and the overall style of the wallboard assembly is adjusted according to the field arrangement requirement, so that the firewall is more flexible during field installation, and the adaptability is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to power facility protection technical field, concretely relates to a prefabricated main transformer firewall. BACKGROUND

[0002] In the transformer substation, the main transformer is undoubtedly one of the extremely key core equipment. The main transformer plays a vital role in the whole transformer substation operation process. In order to effectively prevent the flame and heat from spreading around in the case of main transformer failure, and thus effectively guarantee the safe and stable operation of the transformer substation, a solid and reliable firewall must be set. The existence of the firewall can play a key role in blocking the flame and heat when the main transformer fails, and provide strong protection for the safety of the transformer substation.

[0003] The traditional firewall construction process adopts the cast-in-place mode, and has problems such as long construction period, large on-site operation amount, and difficult quality control. In the existing construction scheme, the prefabricated construction mode is also used to carry out the firewall structure assembly work on the basis of on-site construction. The existing prefabricated firewall structure has the problems of large wallboard size, single structure form of the stand column, high requirement for the site, and poor adaptability. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a prefabricated main transformer firewall, which aims to solve the problems of long construction period, large on-site operation amount, large wallboard size in the existing prefabricated construction, single structure form of the stand column, high requirement for the site, and poor adaptability.

[0005] To solve the above problems, the utility model provides a prefabricated main transformer firewall, which comprises a foundation assembly, a stand column assembly, a wallboard assembly, a bottom beam and a top beam, the stand column assembly is fixedly connected with the foundation assembly, the bottom beam is connected with the foundation assembly, the wallboard assembly is overlapped with the stand column assembly, the top beam is fixedly connected with the top of the stand column assembly, and the top beam is arranged above the wallboard assembly.

[0006] In the same vertical direction, the wallboard assembly comprises a first wallboard, a plurality of second wallboards and a third wallboard, the bottom of the first wallboard abuts against the bottom beam, the plurality of second wallboards are sequentially arranged above the first wallboard, the third wallboard is arranged above the second wallboard, and the top of the third wallboard abuts against the top beam.

[0007] The stand column assembly comprises two first stand columns and at least one second stand column, the two first stand columns are arranged at two ends of the prefabricated main transformer firewall, the second stand column is arranged between the two first stand columns, the first stand column is provided with a first limiting groove on the side close to the wallboard assembly, and the second stand column is provided with a second limiting groove on the two sides close to the wallboard assembly.

[0008] When the second column is one, one end of the wallboard assembly is arranged in the first limiting slot, and the other end of the wallboard assembly is arranged in the second limiting slot;

[0009] When the second column is multiple, two ends of the wallboard assembly located on both sides of the prefabricated main transformer firewall are arranged in the first limiting slot and the second limiting slot, and two ends of the wallboard assembly located between multiple second columns are arranged in the second limiting slot of adjacent second columns.

[0010] Preferably, the base assembly comprises a first base, a second base and a third base, the first base is arranged along the bottom of the prefabricated main transformer firewall, the second base is arranged on the first base, the second base is fixedly connected with the first column, the third base is arranged on the first base, the third base is fixedly connected with the second column, the first end of the bottom beam is connected with the top of the first base, and the second end of the bottom beam is connected with the top of the second base.

[0011] Preferably, the top of the second base is provided with a first steel plate, the top of the third base is provided with a second steel plate and a third steel plate, and the bottom of the bottom beam is provided with a fourth steel plate and a fifth steel plate;

[0012] When the bottom beam is located between the first column and the second column, the first steel plate is welded with the fourth steel plate, and the second steel plate is welded with the fifth steel plate;

[0013] When the bottom beam is located between adjacent second columns, the fourth steel plate is welded with the third steel plate on the top of one of the third bases, and the fifth steel plate is welded with the second steel plate on the top of another third base.

[0014] Preferably, the side of the first column is provided with a sixth steel plate, the two sides of the second column are provided with a seventh steel plate and an eighth steel plate, and the two ends of the bottom beam are provided with a ninth steel plate and a tenth steel plate;

[0015] When the bottom beam is located between the first column and the second column, the sixth steel plate is welded with the ninth steel plate, and the seventh steel plate is welded with the tenth steel plate;

[0016] When the bottom beam is located between adjacent second columns, the ninth steel plate is welded with the eighth steel plate on the side of one of the second columns, and the tenth steel plate is welded with the seventh steel plate on the side of another second column.

[0017] Preferably, the first wallboard is provided with a first limiting portion at the top, the second wallboard is provided with a second limiting portion at the bottom, the second wallboard is provided with a third limiting portion at the top, the third wallboard is provided with a fourth limiting portion at the bottom, the first limiting portion is connected with the second limiting portion, and the third limiting portion is connected with the fourth limiting portion.

[0018] Preferably, the top of the second column is provided with a column cap, the cross-sectional area of the column cap is greater than or equal to the cross-sectional area of the second column, and the column cap is connected with the top beam.

[0019] Preferably, the column cap is provided with a third limiting groove at both sides close to the wallboard assembly, and the third limiting groove is located at the same vertical position as the second limiting groove.

[0020] Preferably, the top beam is fixedly connected with the side edge of the column cap, and the top surface of the top beam is flush with the top surface of the column cap.

[0021] Preferably, the center of the top of the column cap is provided with a mounting assembly, the mounting assembly comprises a mounting plate and an anchor bolt, the mounting plate is provided with mounting holes, the mounting holes are uniformly arranged along the circumference of the mounting plate, the anchor bolt is fixedly connected with the column cap through the mounting holes, and the top of the anchor bolt is arranged above the mounting plate.

[0022] Preferably, the top beam comprises a flange portion and a web portion, the flange portion is located above the web portion, and a drip groove is arranged at the bottom of the flange portion close to both sides of the web portion.

[0023] By such an arrangement, the base assembly, the column assembly, the bottom beam and the top beam constitute the main frame of the fireproof wall, the wallboard assembly is arranged between the first column and the second column, the wallboard assembly is limited by the first limiting groove and the second limiting groove, and thus the fireproof wall is formed. At least one second column is arranged in the fireproof wall structure, the overall structural size of the fireproof wall can be adjusted through the second column, the overall size of the wallboard assembly can be adjusted according to the on-site arrangement requirement, so that the fireproof wall is more flexible during on-site installation and has higher adaptability. Meanwhile, the wallboard assembly is arranged as the first wallboard, the second wallboard and the third wallboard, the multi-layer wallboard structure is more convenient for transportation and installation of prefabrication, and the number of the second wallboard can be adjusted according to different height requirements of the fireproof wall. By such an arrangement, the first wallboard, the second wallboard and the third wallboard are universal, the resource allocation on site is more flexible, and the completion sequence of the first wallboard, the second wallboard and the third wallboard can be arranged flexibly during prefabrication of the wallboard assembly according to the prefabrication quantity, so that the prefabrication production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1It is a prefabricated main transformer firewall overall structure schematic diagram according to an embodiment of the utility model;

[0025] Figure 2 It is a structure schematic diagram that bottom beam is arranged between first stand column and second stand column according to an embodiment of the utility model;

[0026] Figure 3 It is a structure schematic diagram that bottom beam is arranged between two second stand columns according to an embodiment of the utility model;

[0027] Figure 4 It is a sectional view of first stand column according to an embodiment of the utility model;

[0028] Figure 5 It is a sectional view of second stand column according to an embodiment of the utility model;

[0029] Figure 6 It is a sectional view of column cap according to an embodiment of the utility model;

[0030] Figure 7 It is a first wallboard structure schematic diagram according to an embodiment of the utility model;

[0031] Figure 8 It is a second wallboard structure schematic diagram according to an embodiment of the utility model;

[0032] Figure 9 It is a third wallboard structure schematic diagram according to an embodiment of the utility model;

[0033] Figure 10 It is an installation assembly structure schematic diagram according to an embodiment of the utility model;

[0034] Figure 11 It is an installation assembly and column cap connection relationship schematic diagram according to an embodiment of the utility model;

[0035] Figure 12 It is a top beam structure schematic diagram according to an embodiment of the utility model.

[0036] Reference signs:

[0037] 1, base assembly;11, first base;12, second base;121, first steel plate (121);13, third base;131, second steel plate (131);132, third steel plate (132);

[0038] 2, post assembly (2); 21, first post (21); 21a, first limiting groove (21a); 211, sixth steel plate (211); 22, second post (22); 22a, second limiting groove (22a); 221, seventh steel plate (221); 222, eighth steel plate (222); 223, column cap (223); 223a, third limiting groove (223a);

[0039] 3, wallboard assembly (3); 31, first wallboard (31); 311, first limiting part (311); 32, second wallboard (32); 321, second limiting part (321); 322, third limiting part (322); 33, third wallboard (33); 331, fourth limiting part (331);

[0040] 4, bottom beam (4); 41, fourth steel plate (41); 42, fifth steel plate (42); 43, ninth steel plate (43); 44, tenth steel plate (44);

[0041] 5, top beam (5); 51, flange part (51); 51a, water drip groove (51a); 52, web part (52);

[0042] 6, mounting assembly (6); 61, mounting plate (61); 61a, mounting hole (61a); 62, anchor bolt (62). DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application will be further described in detail below with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0044] In the drawings, a schematic diagram of a layer structure according to an embodiment of the present application is shown. These drawings are not drawn to scale, in which certain details are exaggerated for the purpose of clarity, and certain details can be omitted. The shapes of various regions, layers shown in the drawings, and their relative sizes, positional relationships may deviate due to manufacturing tolerances or technical limitations in practice, and regions / layers with different shapes, sizes, relative positions can be additionally designed by those skilled in the art according to actual needs.

[0045] In the description of the present application, it should be noted that the terms "first", "second", "third" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0046] In combination Figures 1 to 6The utility model provides a kind of prefabricated main transformer firewall, including foundation component 1, column component 2, wallboard component 3, bottom beam 4 and top beam 5, column component 2 is fixedly connected with foundation component 1, bottom beam 4 is connected with foundation component 1, wallboard component 3 is overlapped with column component 2, top beam 5 is fixedly connected with the top of column component 2, top beam 5 is set in the upper of wallboard component 3;On the same vertical, wallboard component 3 includes a first wallboard 31, multiple second wallboards 32 and a third wallboard 33, the bottom of first wallboard 31 is abutted with bottom beam 4, multiple second wallboards 32 are sequentially set in the upper of first wallboard 31, third wallboard 33 is set in the upper of second wallboard 32, the top of third wallboard 33 is abutted with top beam 5;Column component 2 includes two first columns 21 and at least one second column 22, two first columns 21 are set in the both ends of prefabricated main transformer firewall, second column 22 is set in two first columns 21, first column 21 is equipped with first limiting slot 21a in the side close to wallboard component 3, second column 22 is equipped with second limiting slot 22a in the two sides close to wallboard component 3;When second column 22 is one, one end of wallboard component 3 is set in first limiting slot 21a, the other end of wallboard component 3 is set in second limiting slot 22a;When second column 22 is multiple, the both ends of wallboard component 3 located in the both sides of prefabricated main transformer firewall are set in first limiting slot 21a and second limiting slot 22a, the both ends of wallboard component 3 located between multiple second columns 22 are set in the second limiting slot 22a of adjacent second column 22.The specific, foundation component 1 provides stable bottom support for entire prefabricated main transformer firewall, bears the load transferred by upper structure;Column component 2 plays vertical support role, supports wallboard component 3 and top beam 5, guarantees the vertical stability of firewall;Wallboard component 3 is as the main barrier of fire prevention, blocks the spread of flame and heat;Bottom beam 4 connects foundation component 1 and column component 2, enhances the integrity of structure, and transfers horizontal load;Top beam 5 connects the top of column component 2, guarantees the stability of the top of firewall, simultaneously provides support for installing other equipment.

[0047] Through such a setting, the base assembly 1, the column assembly 2, the bottom beam 4 and the top beam 5 constitute the main frame of the fireproof wall, the wallboard assembly 3 is arranged between the first column 21 and the second column 22, the wallboard assembly 3 is limited through the first limiting slot 21a and the second limiting slot 22a, and then the fireproof wall is formed. At least one second column 22 is arranged in the fireproof wall structure, the overall structural size of the fireproof wall can be adjusted through the second column 22, the overall size of the wallboard assembly 3 is adjusted according to the on-site arrangement requirement, so that the fireproof wall is more flexible during on-site installation and has higher adaptability. At the same time, the wallboard assembly 3 is arranged as the first wallboard 31, the second wallboard 32 and the third wallboard 33, through the multi-layer wallboard structure, the transportation and installation of prefabrication are more convenient, and the number of the second wallboard 32 can be adjusted according to different height requirements of the fireproof wall. Through such a setting, the first wallboard 31, the second wallboard 32 and the third wallboard 33 are universal, the resource allocation on site is more flexible, and the completion order of the first wallboard 31, the second wallboard 32 and the third wallboard 33 can be arranged flexibly during the prefabrication process of the wallboard assembly 3, so that the prefabrication production efficiency is improved. In addition, the column assembly 2 is overlapped with the wallboard assembly 3, which is convenient for the installation and disassembly of the wallboard assembly 3, and the design of the first limiting slot 21a and the second limiting slot 22a ensures the accuracy and stability of the installation of the wallboard assembly 3, prevents the wallboard assembly 3 from moving during use, and ensures the structural stability and fireproof performance. The column assembly 2 is fixedly connected with the base assembly 1, so as to ensure the stability of the column and the entire fireproof wall. The specific way of fixing the column assembly 2 with the base assembly 1 is that a reserved hole for installing the column assembly 2 is arranged on the base assembly 1, the bottom of the column assembly 2 is arranged in the reserved hole, and the column assembly 2 is fixed through cast-in-place concrete.

[0048] The specific structure of the foundation is not limited here, and the foundation can only meet the overall load of the firewall and ensure the stability of the firewall. In the preferred case, the foundation assembly 1 includes a first foundation 11, a second foundation 12, and a third foundation 13. The first foundation 11 is arranged along the bottom of the prefabricated main firewall, the second foundation 12 is arranged on the first foundation 11, the second foundation 12 is fixedly connected with the first column 21, the third foundation 13 is arranged on the first foundation 11, the third foundation 13 is fixedly connected with the second column 22, the first end of the bottom beam 4 is connected with the top of the first foundation 11, and the second end of the bottom beam 4 is connected with the top of the second foundation 12. Specifically, the first foundation 11 is arranged along the bottom of the firewall, uniformly distributes the load, and provides foundation support for the entire structure; the second foundation 12 is fixedly connected with the first column 21, and provides stable support for the first column 21. The third foundation 13 is fixedly connected with the second column 22, and provides stable support for the second column 22; the bottom beam 4 is connected with the first foundation 11 and the second foundation 12, connecting the foundation and the column into a whole, and enhancing the integrity of the structure. It should be noted that the connection mode of the bottom beam 4 here is only for the case where the firewall is provided with a second column 22. When the firewall is provided with multiple second columns 22, multiple third foundations 13 are provided corresponding to the firewall, and the bottom beam 4 is connected with two adjacent third foundations 13. Through such a setting, different foundations are set according to different column structures, ensuring the overall structural strength of the firewall and the rational use of resources. The specific size relationship between the second foundation 12 and the third foundation 13 is not limited here. In the preferred case, the second column 22 located in the middle often bears a large load because other equipment is installed on the top of the firewall. At this time, the cross-sectional area of the third foundation 13 is processed to be larger than that of the second foundation 12, ensuring the stability of the second column 22 and reducing the uniform load.

[0049] The specific connection mode of the bottom beam 4 with the second foundation 12 and the third foundation 13 is not limited here. It can be that the gap is sealed by cement mortar during assembly, or a groove matching the structure of the bottom beam 4 is reserved on the top of the second foundation 12 and the third foundation 13 to meet the limiting requirements of the bottom beam 4. In the preferred case, steel plates are pre-buried on the bottom beam 4, the second foundation 12, and the third foundation 13, and the steel plates are welded during the installation of the bottom beam 4 to realize the fixed connection of the bottom beam 4 with the second foundation 12 and the third foundation 13. Figure 2 and Figure 3As shown, specifically, the top of the second foundation 12 is provided with a first steel plate 121, the top of the third foundation 13 is provided with a second steel plate 131 and a third steel plate 132, and the bottom of the bottom beam 4 is provided with a fourth steel plate 41 and a fifth steel plate 42. It should be noted that when the bottom beam 4 is located between the first column 21 and the second column 22, the first steel plate 121 is welded with the fourth steel plate 41, and the second steel plate 131 is welded with the fifth steel plate 42; when the bottom beam 4 is located between adjacent second columns 22, the fourth steel plate 41 is welded with the third steel plate 132 on the top of one third foundation 13, and the fifth steel plate 42 is welded with the second steel plate 131 on the top of another third foundation 13. The first steel plate 121, the second steel plate 131, the third steel plate 132, the fourth steel plate 41 and the fifth steel plate 42 described herein are only for clearly describing the connection relationship between the bottom beam 4 and the second foundation 12 and the third foundation 13, and do not represent the importance of the structure, nor limit the specific shape of each steel plate. Preferably, the shape of each steel plate is consistent, which facilitates the installation of steel plates during prefabrication, and the size of two corresponding steel plates is consistent during welding, which is conducive to welding construction and welding strength. Here, the welding method of the corresponding steel plates is not limited, which can be full welding of the steel plates on the side of the structure surface after the bottom beam 4 is placed, which can realize the fixed connection between the bottom beam 4 and the second foundation 12 and the third foundation 13, and ensure the strength of the overall structure.

[0050] In a preferred case, the positions where the bottom beam 4 abuts against the first column 21 and the second column 22 can also be provided with similar steel plates by pre-embedding and welding, specifically, the side of the first column 21 is provided with a sixth steel plate 211, and the two sides of the second column 22 are provided with a seventh steel plate 221 and an eighth steel plate 222; the two ends of the bottom beam 4 are provided with a ninth steel plate 43 and a tenth steel plate 44; when the bottom beam 4 is located between the first column 21 and the second column 22, the sixth steel plate 211 is welded with the ninth steel plate 43, and the seventh steel plate 221 is welded with the tenth steel plate 44; when the bottom beam 4 is located between adjacent second columns 22, the ninth steel plate 43 is welded with the eighth steel plate 222 on one side of one second column 22, and the tenth steel plate 44 is welded with the seventh steel plate 221 on one side of another second column 22. The steel plate setting and connection mode herein is similar to the above, which will not be described in detail.

[0051] Through such a setting, these steel plates are used to enhance the connection strength between the foundation assembly 1 and the bottom beam 4 and the column assembly 2 and the bottom beam 4, transfer the load, and the welding connection mode makes the foundation assembly 1, the column assembly 2 and the bottom beam 4 form an integral whole, effectively transfer the load, prevent structural deformation or damage caused by loose connection, and improve the integrity and stability of the firewall structure.

[0052] In the preferred case, the first wallboard 31, the second wallboard 32 and the third wallboard 33 are placed by stacking from bottom to top, that is, one or more second wallboards 32 are arranged on the first wallboard 31, and a third wallboard 33 is placed on the topmost second wallboard 32, thereby realizing the assembly of the wallboard assembly 3. Here, the specific sizes of the first wallboard 31, the second wallboard 32 and the third wallboard 33 are not limited, and are adjusted according to the construction environment and site conditions. In the case of good site conditions and convenient installation, the prefabricated size of the first wallboard 31, the second wallboard 32 and the third wallboard 33 can be enlarged to reduce the installation frequency and improve the work efficiency. In the case of limited site and difficult installation, the prefabricated size of the first wallboard 31, the second wallboard 32 and the third wallboard 33 can be reduced, and the number of the second wallboard 32 can be increased to make the fireproof wall reach the preset height. Here, the connection relationship in the stacking process of the first wallboard 31, the second wallboard 32 and the third wallboard 33 is not limited. When the installation strength of the wallboard assembly 3 can be met by the first limiting groove 21a and the second limiting groove 22a, the first wallboard 31, the second wallboard 32 and the third wallboard 33 can be arranged as a flat structure at the connection, and the wall surface of the fireproof wall is formed by abutting, and further, the joint filling can be performed by cement mortar to improve the integrity and appearance quality of the wall surface. In the preferred case, the first wallboard 31 is provided with a first limiting portion 311 at the top, the second wallboard 32 is provided with a second limiting portion 321 at the bottom, the second wallboard 32 is provided with a third limiting portion 322 at the top, and the third wallboard 33 is provided with a fourth limiting portion 331 at the bottom. The first limiting portion 311 is connected with the second limiting portion 321, and the third limiting portion 322 is connected with the fourth limiting portion 331. Through such arrangement, the close combination between the wallboards is ensured, the integrity and fireproof performance of the fireproof wall are guaranteed, and the installation and positioning of the wallboards are facilitated.

[0053] In the practical process of the fireproof wall, it is usually necessary to install other equipment on the top of the fireproof wall, and the existence of these equipment will cause the local load of the fireproof wall to increase. In combination with Figure 1 、 Figure 10 and Figure 11 , in the preferred case, the top of the second column 22 is provided with a column cap 223, the cross-sectional area of the column cap 223 is greater than or equal to the cross-sectional area of the second column 22, and the column cap 223 is connected with the top beam 5. Through such arrangement, the other equipment on the top of the fireproof wall can be installed at the position of the column cap 223, and the load is transmitted to the foundation assembly 1 through the second column 22. Specifically, in the building structure, one of the main functions of the column cap 223 is to disperse the load from the upper equipment. When the upper equipment transmits the load to the second column 22, the column cap 223 can increase the stress area at the top of the second column 22, so that the load is more uniformly distributed on the second column 22, thereby reducing the pressure intensity borne by the column, and further enhancing the strength and stability of the joint between the second column 22 and the top beam 5.

[0054] The specific structure of the column cap 223 is not limited here and can be in the form of an enlarged cross section identical to the cross section of the second column 22. Further, the column cap 223 is provided with a third limiting groove 223a on both sides close to the wallboard assembly 3, and the third limiting groove 223a is located at the same vertical position as the second limiting groove 22a. Through such a setting, the column cap 223 can be integrally formed with the second column 22, increasing the integrity of the second column 22, and at the same time, the third limiting groove 223a and the second limiting groove 22a are arranged at the same vertical position, specifically, the groove bottom of the third limiting groove 223a is coplanar with the groove bottom of the second limiting groove 22a, further ensuring the installation accuracy and stability of the wallboard assembly 3. Further, the top beam 5 is fixedly connected with the side edge of the column cap 223, and the top surface of the top beam 5 is flush with the top surface of the column cap 223. Through such a setting, the stability of the connection between the top beam 5 and the column cap 223 is ensured, and the top beam 5 can uniformly transmit the load. The top surface of the top beam 5 is arranged flush with the top surface of the column cap 223, not only ensuring the overall aesthetics, but also uniformly transmitting the load when stressed, avoiding stress concentration due to height difference, and ensuring the stability of the top structure of the fireproof wall.

[0055] It should be noted that the specific equipment arranged on the top of the fireproof wall is not limited here, and the specific connection relationship between the equipment and the fireproof wall is not limited, which can be that the base of the equipment is fixedly connected with the column cap 223 through cast-in-place concrete, or that a pre-buried structure is arranged on the top of the column cap 223, and the equipment is installed on the top of the fireproof wall through the pre-buried structure. In the preferred case, the center position of the top of the column cap 223 is provided with a mounting assembly 6, and the mounting assembly 6 includes a mounting plate 61 and a foundation bolt 62. The mounting plate 61 is provided with mounting holes 61a which are uniformly arranged along the circumference of the mounting plate 61. The foundation bolt 62 is fixedly connected with the column cap 223 through the mounting holes 61a, and the top of the foundation bolt 62 is arranged above the mounting plate 61. Through such a setting, the mounting assembly 6 is used to facilitate the connection between the fireproof wall and other equipment, adapt to different connection requirements, ensure the firmness of the connection, and make the fireproof wall better integrate into the overall structure of the substation.

[0056] In combination Figure 12 In the preferred case, the top beam 5 includes a flange portion 51 and a web portion 52, the flange portion 51 is located above the web portion 52, and the bottom of the flange portion 51 is provided with a water drip groove 51a close to the two sides of the web portion 52. The flange portion 51 and the web portion 52 constitute the main structure of the top beam 5, which is used to bear the load and ensure the stability of the top of the fireproof wall. The water drip groove 51a prevents rainwater from accumulating on the top beam 5, and at the same time, to some extent, blocks the flow of rainwater to the web portion 52, thereby avoiding the rainwater on the top from flowing along the wallboard assembly 3 to the ground, prolonging the service life of the top beam 5 and the wallboard assembly 3, and further ensuring the long-term stability of the fireproof wall.

[0057] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A prefabricated main transformer firewall, characterized by The prefabricated main transformer firewall comprises a base assembly (1), a column assembly (2), a wallboard assembly (3), a bottom beam (4) and a top beam (5), the column assembly (2) is fixedly connected with the base assembly (1), the bottom beam (4) is connected with the base assembly (1), the wallboard assembly (3) is overlapped with the column assembly (2), the top beam (5) is fixedly connected with the top of the column assembly (2), and the top beam (5) is arranged above the wallboard assembly (3); In the same vertical direction, the wallboard assembly (3) comprises a first wallboard (31), a plurality of second wallboards (32) and a third wallboard (33), the bottom of the first wallboard (31) abuts against the bottom beam (4), the plurality of second wallboards (32) are sequentially arranged above the first wallboard (31), the third wallboard (33) is arranged above the second wallboard (32), and the top of the third wallboard (33) abuts against the top beam (5); The column assembly (2) comprises two first columns (21) and at least one second column (22), the two first columns (21) are arranged at two ends of the prefabricated main transformer firewall, the second column (22) is arranged between the two first columns (21), and the first column (21) is provided with a first limiting groove (21a) on one side close to the wallboard assembly (3); the second column (22) is provided with a second limiting groove (22a) on both sides close to the wallboard assembly (3); When the second column (22) is one, one end of the wallboard assembly (3) is arranged in the first limiting groove (21a), and the other end of the wallboard assembly (3) is arranged in the second limiting groove (22a); When the second column (22) is a plurality, the wallboard assemblies (3) located on both sides of the prefabricated main transformer firewall are arranged at two ends in the first limiting grooves (21a) and the second limiting grooves (22a), and the wallboard assembly (3) located between the plurality of second columns (22) is arranged at two ends in the second limiting grooves (22a) of adjacent second columns (22).

2. The prefabricated main transformer firewall according to claim 1, characterized in that, The base assembly (1) comprises a first base (11), a second base (12) and a third base (13), the first base (11) is arranged along the bottom of the prefabricated main transformer firewall, the second base (12) is arranged on the first base (11), the second base (12) is fixedly connected with the first column (21), the third base (13) is arranged on the first base (11), the third base (13) is fixedly connected with the second column (22), a first end of the bottom beam (4) is connected with the top of the first base (11), and a second end of the bottom beam (4) is connected with the top of the second base (12).

3. The prefabricated main transformer firewall according to claim 2, characterized in that, The top of the second base (12) is provided with a first steel plate (121), the top of the third base (13) is provided with a second steel plate (131) and a third steel plate (132), and the bottom of the bottom beam (4) is provided with a fourth steel plate (41) and a fifth steel plate (42). When the bottom beam (4) is located between the first column (21) and the second column (22), the first steel plate (121) is welded with the fourth steel plate (41), and the second steel plate (131) is welded with the fifth steel plate (42); When the bottom beam (4) is located between adjacent second columns (22), the fourth steel plate (41) is welded with the third steel plate (132) on the top of one of the third bases (13), and the fifth steel plate (42) is welded with the second steel plate (131) on the top of another third base (13).

4. The prefabricated main transformer firewall according to claim 3, characterized in that, The side of the first column (21) is provided with a sixth steel plate (211), and the two sides of the second column (22) are provided with a seventh steel plate (221) and an eighth steel plate (222); the two ends of the bottom beam (4) are provided with a ninth steel plate (43) and a tenth steel plate (44); When the bottom beam (4) is located between the first column (21) and the second column (22), the sixth steel plate (211) is welded with the ninth steel plate (43), and the seventh steel plate (221) is welded with the tenth steel plate (44); When the bottom beam (4) is located between adjacent second columns (22), the ninth steel plate (43) is welded with the eighth steel plate (222) on the side of one of the second columns (22), and the tenth steel plate (44) is welded with the seventh steel plate (221) on the side of another second column (22).

5. The prefabricated main transformer fire wall according to claim 1, characterized in that, The top of the first wall plate (31) is provided with a first limiting part (311), the bottom of the second wall plate (32) is provided with a second limiting part (321), the top of the second wall plate (32) is provided with a third limiting part (322), and the bottom of the third wall plate (33) is provided with a fourth limiting part (331); the first limiting part (311) is connected with the second limiting part (321), and the third limiting part (322) is connected with the fourth limiting part (331).

6. The prefabricated main transformer firewall according to claim 1, characterized in that, The top of the second column (22) is provided with a column cap (223), and the cross-sectional area of the column cap (223) is greater than or equal to the cross-sectional area of the second column (22); the column cap (223) is connected with the top beam (5).

7. The prefabricated main transformer firewall according to claim 6, characterized in that, The column cap (223) is provided with a third limiting groove (223a) on both sides close to the wall plate assembly (3), and the third limiting groove (223a) is located in the same vertical position as the second limiting groove (22a).

8. The prefabricated main transformer firewall according to claim 7, characterized in that, The top beam (5) is fixedly connected with the side of the column cap (223), and the top surface of the top beam (5) is flush with the top surface of the column cap (223).

9. The prefabricated main transformer firewall according to claim 8, characterized in that, A mounting assembly (6) is arranged at the center of the top of the column cap (223), the mounting assembly (6) comprises a mounting plate (61) and an anchor bolt (62), the mounting plate (61) is provided with mounting holes (61a), the mounting holes (61a) are uniformly arranged along the circumference of the mounting plate (61), the anchor bolt (62) is fixedly connected with the column cap (223) through the mounting holes (61a), and the top of the anchor bolt (62) is arranged above the mounting plate (61).

10. The prefabricated main transformer firewall according to claim 1, characterized in that, The roof beam (5) comprises a flange part (51) and a web part (52), the flange part (51) is located above the web part (52), and the bottom of the flange part (51) is provided with a water drip groove (51a) near both sides of the web part (52).

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