A main transformer fireproof noise reduction wall and architectural structure design method

Abstract

This invention discloses a design method for a fireproof and noise-reducing wall and its structural framework for a main transformer, including: determining the length and height of the fireproof and noise-reducing wall; determining the structural form of the fireproof and noise-reducing wall; determining the main transformer framework scheme; establishing a finite element model of the main transformer framework and the fireproof and noise-reducing wall, and conducting structural load-bearing capacity and displacement analysis; designing the reinforcement of the fireproof and noise-reducing wall, and designing structural components and nodes; installing fall arrestors on the structural columns, and setting up walkways parallel to each other on both sides of the structural beams. This invention avoids the problem of obvious construction joints between cast-in-place frame columns and capping beams. While ensuring structural safety, it improves the appearance quality of the prefabricated fireproof and noise-reducing wall, avoids secondary formwork and casting of frame beams and columns, improves on-site installation efficiency, and reduces infrastructure costs. The application results are significant and can be promoted for use in other similar projects.

Description

Technical Field

[0001] This invention relates to the field of power grid substation in power engineering, specifically to a design method for a fireproof and noise-reducing wall and its structure for a main transformer. Background Technology

[0002] In many substations, transformers are often placed close together to minimize land use, which may compromise fire safety requirements. Therefore, fire-resistant and noise-reducing walls with a Class I fire resistance rating are commonly installed between transformers. These walls are typically higher than the top of the oil tank and at least 1 meter long. They are usually constructed of reinforced concrete slabs, masonry, or frame-infilled walls, with lengths typically ranging from 13 to 15 meters and heights from 8 to 9 meters. To save space, the main transformer incoming line frame and insulator supports are usually installed directly on top of the fire-resistant and noise-reducing walls. The frame and support column bases are connected to the top of the fire-resistant and noise-reducing walls using anchor bolts or on-site welding. After the fire-resistant and noise-reducing walls are installed, some of the lower-wavelength noise from the main transformers is reflected back. The noise intensity is reduced in the propagation direction due to the filtering effect of the fire-resistant and noise-reducing walls, thus lowering the substation boundary noise level.

[0003] To ensure the structural safety of the wall, previous designs for prefabricated fireproof and noise-reducing walls typically employed a cast-in-place frame and precast wall panels. The base plates of the main transformer frame columns and insulator supports were welded on-site to the pre-embedded steel plates of the cast-in-place frame. Previously, precast wall panels were generally installed after the frame columns were poured. After the precast wall panels were installed, a second top capping beam was poured. This often resulted in noticeable construction joints between the cast-in-place frame columns and the capping beam, leading to a poor overall appearance and requiring a second coat of protective liquid to conceal imperfections. This second coat of protective liquid increased infrastructure costs, and over time, the protective liquid would degrade, revealing the flaws again, necessitating reapplication and increasing maintenance costs. Summary of the Invention

[0004] The purpose of this invention is to address the current practice of using cast-in-place frames and precast wall panels for traditional fireproof and noise-reducing walls, where the base plates of the main transformer frame columns and insulator supports are welded to the pre-embedded steel plates of the cast-in-place frame on-site. This invention provides a design method for the main transformer fireproof and noise-reducing wall and its structural framework, which solves the problem of requiring secondary formwork and casting for the on-site frame.

[0005] The technical solution of the present invention is as follows:

[0006] include:

[0007] S1. Determine the length and height of the fireproof and noise reduction wall. According to the process requirements, the fireproof and noise reduction wall should extend at least 1m beyond the main transformer oil pit at both ends and be at least 1m higher than the transformer oil conservator.

[0008] S2. Determine the structural form of the fireproof and noise-reducing wall. In order to improve the overall load-bearing performance of the fireproof wall and the efficiency of on-site assembly, the fireproof and noise-reducing wall adopts a double beam structure and prefabricated insert fireproof wall panels. The top of the double beam structure is equipped with a finished drip groove to prevent rainwater from flowing into the wall panels.

[0009] S3. Determine the main transformer architecture scheme. In order to save steel and improve the adaptability of the main transformer architecture for future expansion, a three-phase integrated beam design is adopted, with double-inlet and double-outlet hanging rings. The main transformer fireproof and noise reduction wall is equipped with a herringbone column and end bracing is designed at the ends.

[0010] S4. Establish a finite element model of the main transformer architecture and fireproof noise reduction wall, and conduct structural bearing capacity and displacement analysis under high wind conditions, icing conditions, installation conditions, and maintenance conditions.

[0011] S5. Design the reinforcement of the fireproof and noise-reducing wall, and design the structural components and nodes. All structural splicing nodes adopt rigid flange connections, and beam and column connections adopt elongated holes to improve the deformation resistance of the structure.

[0012] S6. Fall protection devices are installed on the structural columns, and walkways are set up parallel to each other on both sides of the structural beams.

[0013] Because the fireproof and noise-reducing wall structure adopts a double-beam structure and prefabricated insert panels, specifically, the fireproof panels are inserted through the double-beam structure, and the top of the fireproof panels extends into the double-beam structure, avoiding the problem of obvious construction joints between the cast-in-place frame columns and the capping beams. While ensuring structural safety, this improves the appearance quality of the prefabricated fireproof and noise-reducing wall, avoids secondary formwork and casting of frame beams and columns, increases on-site installation efficiency, and reduces infrastructure costs. The application results are significant and can be promoted for use in other similar projects.

[0014] Furthermore, the establishment of the finite element model of the main transformer architecture, the herringbone column, and the fireproof and noise-reducing wall is characterized by including:

[0015] S41. Model the three-phase integrated beam and hanging ring of the main transformer structure and perform finite element analysis;

[0016] S42. Model the herringbone column and its ends and perform finite element analysis;

[0017] S43. Model the fireproof and noise-reducing wall and perform finite element analysis.

[0018] S44. Model the overall structure consisting of the main transformer, the herringbone column, and the fireproof and noise-reducing wall, and perform finite element analysis.

[0019] Through finite element analysis, special designs were made for the aforementioned key structures and nodes, which improved the prefabrication rate of the structure and reduced infrastructure costs while meeting the overall wind and earthquake resistance performance of the structure.

[0020] The fireproof and noise-reducing wall includes a base with several spaced-apart columns installed on it. Firewall panels are installed between adjacent columns, and a capping for protection is installed on the upper surface of each firewall panel. The capping includes a double-beam structure, and the top of the firewall panel extends into the double-beam structure. During construction, the firewall panels are assembled between the columns, and the capping is installed on the upper surface of the firewall panels. Construction can be completed in a single pour, requiring only the capping and firewall panels, thus avoiding secondary formwork and pouring for the frame beams and columns.

[0021] Furthermore, the gap between the double beam structure is provided with a sealing layer. Specifically, the sealing layer is made of fine stone concrete grouting, which avoids the problem of obvious construction joints between traditional cast-in-place frame columns and capping beams, and eliminates the need for secondary application of protective liquid.

[0022] Furthermore, to facilitate the fixing of the transformer's incoming and outgoing lines, one feasible solution is that the main transformer frame for fixing the transformer's incoming and outgoing lines is detachably installed on the pressure top via the main transformer frame connector, which avoids on-site welding, improves on-site installation efficiency, and reduces infrastructure costs.

[0023] Preferably, the main transformer frame connector includes a mounting plate and anchor bolts passing through the mounting plate. The lower end face of the mounting plate is fixed to the longitudinal reinforcement. Specifically, the mounting plate is welded to the longitudinal reinforcement, and the main transformer frame is connected by the anchor bolts. While ensuring structural safety, this effectively avoids secondary formwork casting and on-site welding of the frame, improves the appearance quality of the prefabricated fireproof and noise-reducing wall, increases on-site installation efficiency, and reduces infrastructure costs. The application results are significant and can be promoted and used in other similar projects.

[0024] Preferably, the anchor bolts are L-shaped. Compared with traditional bolts, L-shaped bolts can provide greater torque during installation, which facilitates the installation of the main transformer frame.

[0025] Furthermore, this solution is not limited to the only way of fixing the transformer's incoming and outgoing lines. One feasible solution is that the main transformer frame includes several spaced hanging rings, through which the transformer's incoming or outgoing lines are threaded. Specifically, each hanging ring corresponds to the incoming or outgoing line of one phase transformer. Since each phase's incoming and outgoing lines are spaced apart, phase voltage interference can be avoided.

[0026] Furthermore, the hanging rings are symmetrically distributed on both sides of the main transformer frame. Specifically, a pair of symmetrical hanging rings correspond to the incoming and outgoing lines of one phase transformer, which facilitates inspection and maintenance.

[0027] Furthermore, an insulator bracket is installed on the top or fire wall panel, and an insulator is detachably installed on the insulator bracket. While ensuring structural safety, this effectively avoids secondary formwork casting and on-site welding of the frame, improves the appearance quality of the prefabricated fireproof and noise-reducing wall, increases on-site installation efficiency, and reduces infrastructure costs. The application results are significant and can be promoted and used in other similar projects.

[0028] Furthermore, to facilitate the installation of the firewall panel, a modular assembly structure is adopted. The firewall panel includes several assembly units, and each assembly unit has a positioning block and a positioning groove that cooperates with the positioning block. The modular assembly structure facilitates the installation of the firewall panel.

[0029] Furthermore, this solution does not exclusively limit the specific structure of the firewall board. One preferred solution is that the firewall board includes a load-bearing structure, which reinforces the firewall board to ensure its reliability.

[0030] Furthermore, this solution does not exclusively limit the specific structure of the load-bearing structure. One feasible solution is that the load-bearing structure includes several U-shaped ribs and transverse ribs connected in conjunction with the U-shaped ribs. The U-shaped ribs and transverse ribs form a double-layer reinforcement mesh, which can ensure the reliability of the fireproof wall panel.

[0031] Furthermore, a drip groove is formed on the top of the fireproof wall to divert rainwater and prevent rainwater from flowing into the fireproof wall panel.

[0032] Compared with existing technologies, the advantages of this invention are:

[0033] Construction can be completed in a single pour of the capping and fireproof wall panels, avoiding the need for secondary formwork and pouring of the frame beams and columns. Because the fireproof wall panels are inserted and installed between the columns via a double-beam structure, and the top of the fireproof wall panels extends into the double-beam structure, the problem of noticeable construction joints between the cast-in-place frame columns and the capping beams is avoided. While ensuring structural safety, this approach improves the appearance quality of the prefabricated fireproof and noise-reducing wall, increases on-site installation efficiency, and reduces infrastructure costs. The application results are significant and can be promoted for use in other similar projects. Attached Figure Description

[0034] Figure 1 This is a front view of the present invention;

[0035] Figure 2 This is a front view of the firewall of the present invention;

[0036] Figure 3 This is a top view of the main transformer frame of the present invention;

[0037] Figure 4 This is a cross-sectional view of the assembly unit of the present invention;

[0038] Figure 5 This is a cross-sectional view of the pressure cap of the present invention;

[0039] Figure 6 This is a schematic diagram of the main transformer frame connector structure of the present invention;

[0040] Figure 7 This is a schematic diagram of the finite element model of the present invention.

[0041] Figure label:

[0042] 1. Base; 11. Pad; 2. Column; 3. Firewall plate; 31. U-shaped rib; 32. Horizontal rib; 33. Positioning block; 34. Positioning groove; 4. Top; 41. Sealing layer; 42. Drip groove; 43. Sloping top; 5. Main transformer frame connector; 51. Mounting plate; 52. Anchor bolt; 6. Main transformer frame; 61. Hanging ring; 7. Insulator bracket; 8. Transformer; 91. Main transformer frame model; 92. A-frame column model; 93. Fireproof and noise-reducing wall model. Detailed Implementation

[0043] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0044] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0045] Please see Figure 1 and Figure 2 A method for designing a fireproof and noise-reducing wall and its structural architecture for a main transformer, comprising:

[0046] S1. Determine the length and height of the fireproof and noise reduction wall. According to the process requirements, the fireproof and noise reduction wall should extend at least 1m beyond the main transformer oil pit at both ends and be at least 1m higher than the transformer oil conservator.

[0047] S2. Determine the structural form of the fireproof and noise-reducing wall. In order to improve the overall load-bearing performance of the fireproof wall and the efficiency of on-site assembly, the fireproof and noise-reducing wall adopts a double beam structure and prefabricated insert fireproof wall panels. The top of the double beam structure is equipped with a finished drip groove to prevent rainwater from flowing into the wall panels.

[0048] S3. Determine the main transformer architecture scheme. In order to save steel and improve the adaptability of the main transformer architecture for future expansion, a three-phase integrated beam design is adopted, with double-inlet and double-outlet hanging rings. The main transformer fireproof and noise reduction wall is equipped with a herringbone column and end bracing is designed at the ends.

[0049] S4. Establish a finite element model of the main transformer architecture and fireproof noise reduction wall, and conduct structural bearing capacity and displacement analysis under high wind conditions, icing conditions, installation conditions, and maintenance conditions.

[0050] S5. Design the reinforcement of the fireproof and noise-reducing wall, and design the structural components and nodes. All structural splicing nodes adopt rigid flange connections, and beam and column connections adopt elongated holes to improve the deformation resistance of the structure.

[0051] S6. Fall protection devices are installed on the structural columns, and walkways are set up parallel to each other on both sides of the structural beams.

[0052] Because the fireproof and noise-reducing wall structure adopts a double-beam structure and prefabricated insert panels, specifically, the fireproof panels are inserted through the double-beam structure, and the top of the fireproof panels extends into the double-beam structure, avoiding the problem of obvious construction joints between the cast-in-place frame columns and the capping beams. While ensuring structural safety, this design improves the appearance quality of the prefabricated fireproof and noise-reducing wall, avoids secondary formwork and casting for the frame beams and columns, increases on-site installation efficiency, and reduces infrastructure costs. The application results are significant and can be promoted for use in other similar projects.

[0053] Establishing a finite element model of the main transformer structure, the herringbone columns, and the fireproof and noise-reducing wall includes the following steps:

[0054] S41. Model the three-phase integrated beam and hanging ring of the main transformer structure and perform finite element analysis;

[0055] S42. Model the herringbone column and its ends and perform finite element analysis;

[0056] S43. Model the fireproof and noise-reducing wall and perform finite element analysis.

[0057] S44. Model the overall structure consisting of the main transformer, the herringbone column, and the fireproof and noise-reducing wall, and perform finite element analysis.

[0058] Through finite element analysis, special designs were made for the aforementioned key structures and nodes, which improved the prefabrication rate of the structure and reduced infrastructure costs while meeting the overall wind and earthquake resistance performance of the structure.

[0059] The fireproof and noise-reducing wall includes a base 1, on which several spaced-apart columns 2 are installed. Fireproof panels 3 are installed between adjacent columns 2. A capping 4 is installed on the upper surface of the fireproof panels 3 to protect them. The capping 4 includes a double-beam structure for inserting the fireproof panels 3, with the top of the fireproof panels 3 extending into the double-beam structure. During construction, the fireproof panels 3 are assembled between the columns 2, and the capping 4 is installed on the upper part of the fireproof panels 3. Construction can be completed in one pour for both the capping 4 and the fireproof panels 3, avoiding secondary formwork and pouring for the frame beams and columns. Because the fireproof panels 3 are inserted and installed between the columns through the double-beam structure, and the top of the fireproof panels 3 extends into the double-beam structure, the problem of obvious construction joints between the cast-in-place frame columns and the capping beams is avoided. While ensuring structural safety, the appearance quality of the prefabricated fireproof and noise-reducing wall is improved, on-site installation efficiency is increased, and infrastructure costs are reduced. The application results are significant and can be promoted for use in other similar projects.

[0060] See Figure 5 The gap between the double beam structure is provided with a sealing layer 41. Specifically, the sealing layer 41 is made of fine stone concrete grouting, which avoids the problem of obvious construction joints between traditional cast-in-place frame columns and capping beams, and eliminates the need for secondary application of protective liquid.

[0061] Preferably, a pad 11 is provided at the lower end of the base 1 to prevent the base 1 from rigidly contacting the ground, and the pad 11 is used to buffer the impact.

[0062] See Figure 1 To facilitate the fixing of transformer inlet and outlet lines, one feasible solution is to detachably install a main transformer frame 6 for fixing transformer inlet and outlet lines on the pressure cap 4 via a main transformer frame connector 5. This avoids on-site welding, improves on-site installation efficiency, and reduces infrastructure costs.

[0063] See Figure 6 Preferably, the main transformer frame connector 5 includes a mounting plate 51 and anchor bolts 52 passing through the mounting plate 51. The main transformer frame 6 is connected by the anchor bolts 52. While ensuring structural safety, it effectively avoids secondary formwork casting and on-site welding of the frame, improves the appearance quality of the prefabricated fireproof and noise-reducing wall, improves on-site installation efficiency, and reduces infrastructure costs. The application results are significant and can be promoted and used in other similar projects.

[0064] Preferably, the anchor bolt 52 is L-shaped. Compared with traditional bolts, L-shaped bolts can provide greater torque during installation, which facilitates the installation of the main transformer frame 6.

[0065] See Figure 2 and Figure 3This scheme does not limit the fixing method of the transformer's incoming and outgoing lines. One feasible scheme is: the main transformer frame 6 includes several hanging rings 61 arranged at intervals. The hanging rings 61 are used to pass through the transformer's incoming or outgoing lines. Specifically, each hanging ring 61 corresponds to the incoming or outgoing line of one phase transformer. Since each phase's incoming and outgoing lines are arranged at intervals, phase voltage interference can be avoided.

[0066] The hanging rings 61 are symmetrically distributed on both sides of the main transformer frame 6. Specifically, a pair of symmetrical hanging rings 61 correspond to the incoming and outgoing lines of one phase transformer, which facilitates inspection and maintenance.

[0067] An insulator bracket 7 is installed on the capping 4 or the fire wall panel 3. Insulators are detachably installed on the insulator bracket 7. While ensuring structural safety, this effectively avoids secondary formwork casting and on-site welding of the frame, improves the appearance quality of the prefabricated fireproof and noise-reducing wall, increases on-site installation efficiency, and reduces infrastructure costs. The application results are significant and can be promoted and used in other similar projects.

[0068] See Figure 4 To facilitate the installation of the firewall panel 3, a modular assembly structure is adopted. The firewall panel 3 includes an assembly unit, and the assembly unit has a positioning block 33 and a positioning groove 34 that cooperates with the positioning block 33. The modular assembly structure facilitates the installation of the firewall panel 3.

[0069] This solution does not exclusively limit the specific structure of the firewall board 3. One preferred solution is that the firewall board 3 includes a load-bearing structure, which reinforces the firewall board 3 to ensure its reliability.

[0070] This scheme does not limit the specific structure of the load-bearing structure. One feasible scheme is that the load-bearing structure includes several U-shaped ribs 31 and horizontal ribs 32 that are connected to the U-shaped ribs 31. The U-shaped ribs 31 and the horizontal ribs 32 form a double-layer reinforcement mesh, which can ensure the reliability of the fire wall panel 3.

[0071] See Figure 6 A drip groove 42 is formed on the top 4 to divert rainwater and prevent rainwater from flowing into the firewall panel 3.

[0072] Preferably, the upper end face of the pressure cap 4 is formed with an inclined top 43 for guiding rainwater.

[0073] In this embodiment:

[0074] Through finite element analysis, special designs were made for key structures and nodes, improving the prefabrication rate and reducing infrastructure costs while meeting the overall wind and earthquake resistance performance of the structure. This embodiment innovatively proposes a fireproof and noise-reducing wall and main transformer frame structure, designing the capping 4 as a double-beam form, integrally cast with the frame columns. After the frame is cast, the fireproof wall panel 3 is inserted through the double-beam structure, and the gap between the double-beam structure is finally sealed with fine aggregate concrete grouting. Frame columns are installed under the main transformer frame 6, with pre-drilled bolt holes at the top for connection to anchor bolts 52; anchor bolts are also pre-drilled at the top of the capping 4 beams for connection to the insulator brackets 7.

[0075] The beneficial effects of this embodiment are:

[0076] Construction can be completed in a single pour for the capping 4 and the fire wall panel 3, avoiding secondary formwork and pouring for the frame beams and columns. Since the fire wall panel 3 is inserted and installed between the columns 2 via a double-beam structure, and the top of the fire wall panel 3 extends into the double-beam structure, the problem of noticeable construction joints between the cast-in-place frame columns and the capping beam is avoided. The prefabricated fire wall adopts an assembly structure. The capping 4 uses a double-beam structure and is integrally poured with the frame columns. After pouring, the fire wall panel 3 is inserted through the gap in the double-beam structure. Finally, the gap between the double beams is sealed with fine aggregate concrete grouting, eliminating the need for secondary application of protective liquid. Furthermore, a frame column is installed under the main transformer incoming line frame column, with pre-reserved anchor bolts at the top for easy connection to the main transformer frame. Insulator supports 7 are installed on the capping 4 or the fire wall panel 3 for easy connection to insulator supports, facilitating installation and disassembly. It saves space and has good wind and earthquake resistance. A drip groove 42 is formed on the capping 4 to divert rainwater and prevent rainwater from flowing into the wall panel. While ensuring structural safety and fireproof and noise reduction performance, it avoids secondary formwork casting and on-site welding of the frame, improves the appearance quality of the prefabricated fireproof and noise-reducing wall, increases on-site installation efficiency, and reduces infrastructure costs. The application results are significant and can be promoted and used in other similar projects.

[0077] The above embodiments merely illustrate specific implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the technical solution of this application, and these all fall within the scope of protection of this application.

Claims

1. A main transformer fireproof noise reduction wall and framework structure design method, comprising S1, determining the length and height of the fireproof noise reduction wall, according to the process requirements, the fireproof noise reduction wall is at least 1m longer than the main transformer oil pit at both ends, and the height is at least 1m higher than the transformer oil pillow, the fireproof noise reduction wall comprises a base (1), a plurality of spaced apart stand columns (2) are installed on the base (1), a fireproof wall plate (3) is installed between adjacent stand columns (2), a coping (4) for protecting the fireproof wall plate (3) is installed on the upper end surface of the fireproof wall plate (3), the coping (4) comprises a double-beam structure, the double-beam structure is used for inserting the fireproof wall plate (3), and the top of the fireproof wall plate (3) extends into the double-beam structure; S2, determining the structure form of the fireproof noise reduction wall, in order to improve the overall stress performance of the fireproof wall and the on-site assembly efficiency, the fireproof noise reduction wall adopts a double-beam structure and a prefabricated plug-in fireproof wall plate, the top of the double-beam structure is provided with a finished water droplet groove, and rainwater flow is prevented from invading the wall plate; S3, determining the main transformer framework scheme, in order to save steel and improve the long-term expansion adaptability of the main transformer framework, a three-phase integrated beam design is adopted, double-in and double-out hanging rings are arranged, framework herringbone columns are arranged on the main transformer fireproof noise reduction wall, and end supports are designed at the ends of the herringbone columns; S4, establishing a finite element model of the main transformer framework, the herringbone columns and the fireproof noise reduction wall, and carrying out framework bearing capacity and displacement analysis under the conditions of strong wind, icing, installation and maintenance, comprising: S41, modeling the three-phase integrated beam and the hanging ring of the main transformer framework and carrying out finite element analysis; S42, modeling the herringbone column and the end of the herringbone column and carrying out finite element analysis; S43, modeling the fireproof noise reduction wall and carrying out finite element analysis; S44, modeling the whole composed of the main transformer framework, the herringbone columns and the fireproof noise reduction wall and carrying out finite element analysis; S5, carrying out reinforcement design of the fireproof noise reduction wall, framework component and node design, the framework splicing nodes all adopt rigid flange connection, the beam-column connection adopts a long circular hole, and the anti-deformation ability of the framework is improved; S6, a fall-preventing device is arranged on the framework column, and walkways are arranged in parallel on both sides of the framework beam.

2. The main variable fireproof noise reduction wall and architectural structure design method according to claim 1, characterized in that, A sealing layer (401) is arranged in the gap between the double-beam structures.

3. The main variable fireproof noise reduction wall and architectural structure design method according to claim 1, characterized in that, A main transformer framework (6) for fixing the incoming and outgoing lines of the transformer is detachably mounted on the coping (4) through a main transformer framework connector (5).

4. The main fireproof noise reduction wall and framework structure design method according to claim 1, characterized in that, An insulator support (7) is mounted on the coping (4) or the fireproof wall plate (3), and an insulator is detachably mounted on the insulator support (7).

5. The main fireproof noise reduction wall and architectural structure design method according to claim 1, characterized in that, The fireproof wall plate (3) comprises a plurality of spliced units, and positioning blocks (33) and positioning grooves (34) matched with the positioning blocks (33) are formed on the spliced units.

6. The main fireproof noise reduction wall and architectural structure design method according to claim 1, characterized in that, A water droplet groove (42) for draining rainwater is formed on the coping (4).

7. The main fireproof noise reduction wall and architectural structure design method according to claim 1, characterized in that, The main transformer framework (6) comprises a plurality of spaced apart hanging rings (61), and the hanging rings (61) pass through the incoming or outgoing lines of the transformer.

8. The main variable fireproof noise reduction wall and architectural structure design method according to claim 7, characterized in that, The hanging rings (61) are symmetrically distributed along both sides of the main transformer framework (6).

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