Green and environment-friendly construction method for fireproof plugging of power transformation installation engineering

Abstract

The invention relates to the technical field of power transformation installation engineering, and discloses a power transformation installation engineering fireproof plugging green and environment-friendly construction method which comprises the steps of S1, construction preparation, S2, construction step and S3, quality inspection and acceptance, and the S1, construction preparation comprises the steps of S101, material preparation, S102, tool preparation and S103, site preparation; wherein the construction step S2 comprises the steps of S201, cable through hole plugging, S202, plate cabinet hole plugging, S203, pipeline through hole plugging and S204, expansion joint plugging; wherein the step S3 of quality inspection and acceptance includes S301 appearance inspection, S302 size inspection and S303 performance testing, the construction method is excellent in environmental protection performance, non-toxic, odorless and degradable green and environment-friendly fireproof blocking materials are selected in the construction method, harm to the environment and human bodies is eliminated from the source, and the construction method has the advantages that the construction process is simple, and the construction cost is low. By using materials such as nano-modified water-based fireproof mud, high-performance environment-friendly fireproof sealant and the like, the pollution problem possibly caused by traditional materials is greatly reduced, and the requirement of modern green construction is met.

Description

Technical Field

[0001] The present invention relates to the technical field of substation installation engineering, in particular to a green and environmentally friendly fireproofing and blocking construction method for substation installation engineering. Background Art

[0002] In substation installation projects, fireproofing is a critical step in ensuring the safe operation of power facilities. Traditional fireproofing construction methods have numerous drawbacks. Some fireproofing materials are not environmentally friendly and contain toxic and hazardous substances. This can pollute the environment during production, construction, and use, posing a potential threat to the health of construction and maintenance personnel. Furthermore, some materials have limited fire resistance, making it difficult to meet the requirements for long-term fire protection and effectively preventing the spread of fire.

[0003] In terms of construction tools and processes, traditional tools lack precision, resulting in large dimensional deviations in the cutting of fireproof partitions, affecting the sealing effect. During construction, cable bundles were not carefully arranged, and the fireproofing mortar was not densely packed, resulting in gaps, making it difficult to ensure the integrity and sealing of the fireproofing. Furthermore, traditional construction methods lack precise control over various process parameters, such as sealant filling depth and fireproofing material application thickness, resulting in inconsistent fireproofing quality.

[0004] Traditional quality inspection and acceptance methods rely primarily on visual inspection and simple measurements, making it difficult to accurately detect subtle quality issues. Key performance tests for fireproofing, such as fire resistance, water resistance, and smoke resistance, lack professional and precise testing methods, making it impossible to comprehensively and reliably assess the effectiveness of fireproofing. These issues urgently require a new, more scientific and environmentally friendly fireproofing construction method. Summary of the Invention

[0005] (1) Technical problems solved In response to the shortcomings of the existing technology, the present invention provides a green and environmentally friendly construction method for fireproofing and sealing of substation installation projects, which has the advantages of excellent environmental performance, solves the problem of environmental pollution during production, construction and use, and poses a potential threat to the health of construction workers and operation and maintenance personnel.

[0006] (2) Technical solution To achieve the purpose of superior environmental performance of the above-mentioned construction method, the present invention provides the following technical solution: a green and environmentally friendly construction method for fireproofing and blocking of a substation installation project, comprising S1 construction preparation, S2 construction steps, and S3 quality inspection and acceptance, wherein S1 construction preparation includes S101 material preparation, S102 tool preparation, and S103 site preparation; Among them, the S2 construction steps include S201 cable penetration hole sealing, S202 cabinet hole sealing, S203 pipe penetration hole sealing and S204 expansion joint sealing; Among them, S3 quality inspection and acceptance includes S301 appearance inspection, S302 dimension inspection and S303 performance test.

[0007] Preferably, the S101 material preparation: Select new green and environmentally friendly fireproof sealing materials that are non-toxic, odorless, degradable, and have a fire resistance limit of more than 3.5 hours. For example, nano-modified water-based fireproof mud is used, with an oxygen index of ≥65% and a smoke density level (SDR) of ≤15. It can greatly reduce potential harm to the environment and human body while ensuring fireproof performance. Prepare high-strength environmentally friendly fireproof partitions with a specification of 50mm×50mm. Its combustion performance reaches Class A and its bending strength is increased to ≥60MPa to ensure that it is not easily damaged during long-term use. At the same time, it is equipped with high-performance environmentally friendly fireproof sealant. At 20℃-25℃, the surface drying time is shortened to ≤25 minutes, the actual drying time is ≤20 hours, and it has good weather resistance and chemical corrosion resistance.

[0008] Preferably, the S102 tool preparation: A high-precision electric cutting saw (with cutting accuracy improved to ±0.5mm) is used to ensure the precise cutting size of the fireproof partitions. A special intelligent control spray gun is equipped (the spray pressure can be precisely adjusted between 0.3-0.5MPa) to ensure uniform spraying of the fireproof material. At the same time, fine spatulas and high-quality brushes are prepared. All tools are thoroughly inspected and debugged before use to ensure their performance is in optimal condition.

[0009] Preferably, the S103 on-site preparation: Before construction, the substation installation site must be thoroughly cleaned, and professional cleaning equipment must be used to ensure that there is no oil, dust or impurities remaining in the sealed areas. High-precision measuring instruments must be used to measure the dimensions of the areas to be sealed, with measurement errors strictly controlled within ±1mm. Based on the measurement results, professional software must be used for precise simulation and analysis to scientifically plan the use of fire-proof sealing materials and avoid material waste.

[0010] Preferably, the S201 cable penetration hole is sealed: Based on the hole size measurements, a high-precision electric cutting saw is used to cut the fireproof partitions to the appropriate size, with the cutting edge error controlled within ±0.5mm. The cut fireproof partitions are precisely installed at the bottom of the hole as a support layer, and fixed with new expansion bolts. The bolt spacing is optimized to 220mm-240mm to ensure a firm fixation and uniform force. Carefully arrange the cable bundles to keep the gaps between cables uniformly at 6mm-8mm. Use nano-modified water-based fireproof mud to fill around the cable bundles, increasing the filling thickness to no less than 220mm. During the filling process, use professional compacting tools to compact the mud multiple times to ensure that the density of the fireproof mud reaches more than 98% without any gaps. Apply a layer of fireproof sealant with a thickness of 4mm to 6mm evenly on the surface of the fireproof mud, and use a special application tool to ensure that the sealant and the fireproof mud are fully and evenly bonded; A fireproof partition precisely aligned with the bottom partition is installed above the hole and fixed with anti-loosening bolts to further enhance the stability of the sealing structure and complete the sealing of the cable penetration hole.

[0011] Preferably, the S202 cabinet hole sealing: Thoroughly clean the debris around the cabinet holes, use high-precision measuring instruments to recheck the hole dimensions, and based on the measurement results, precisely cut the fireproof partitions to fit perfectly with the hole edges, with an error control of ±1mm; Install the cut fireproof partitions in the holes and seal them with high-performance fireproof sealant. Adjust the sealant filling depth to 12mm - 14mm and use special tools to compact the sealant to ensure the sealing effect. The gaps between the cables and the cabinet walls in the cabinet are filled with fireproof mud. The filling width is increased to no less than 60mm, and the surface of the fireproof mud is carefully smoothed with a fine spatula to ensure beauty and flatness while ensuring a tight seal.

[0012] Preferably, the S203 pipeline penetration hole is blocked: For metal pipes, first use an environmentally friendly cleaner to deeply clean the pipe surface, then evenly apply a layer of high-performance fire retardant paint with a thickness of 0.6mm-0.7mm. Wait for the paint to dry (drying time is 1.5-3 hours according to the paint instructions) and pass the inspection before proceeding to the next step; Install fireproof partitions precisely according to the hole size, fill the gaps between the pipes and the fireproof partitions with fireproof mud, and increase the filling thickness to no less than 160mm. Use professional compacting tools to compact the gaps multiple times to ensure that the filling is dense. Apply a layer of fireproof sealant with a thickness of 2.5mm - 3.5mm on the surface of the fireproof mud, and use advanced spraying equipment to ensure uniform coverage of the sealant to further improve the sealing effect.

[0013] Preferably, the S204 expansion joint is sealed: Use high-pressure cleaning equipment to thoroughly clean the debris in the expansion joint to ensure that the joint is clean and free of residue; Fireproof partitions are accurately installed on both sides of the expansion joint. High-performance fireproof sealant is used to seal the partitions and the joint wall. The sealant filling depth is adjusted to 16mm-18mm, and a secondary compaction process is performed to ensure a firm seal. Fill the expansion joint with high-density fireproof cotton, and increase the filling density to 90kg / m 3 - 110kg / m 3 , the filling thickness is reasonably determined according to the width of the expansion joint and is not less than 120mm; Apply fireproof sealant evenly on the surface of the fireproof cotton with a thickness of 3.5mm - 4.5mm. Use professional testing equipment to conduct real-time testing of the sealing effect to ensure that the expansion joint has good fireproof and sealing properties.

[0014] Preferably, the S301 appearance inspection: High-definition imaging equipment is used to conduct a full-scale inspection of the surface of the fire-proof sealing area to ensure that the surface is flat and smooth, the fire-proof mud and fire-proof sealant materials are evenly applied, and there are no cracks, holes or other defects. At the same time, the firmness of the installation of the fire-proof partition and the neatness of the edges are checked, and the error is strictly controlled within the allowable range.

[0015] Preferably, the S302 size inspection: Use high-precision measuring tools to accurately measure the thickness and width of key dimensions of fireproofing, and carefully compare them with construction requirements, with the error strictly controlled within ±3mm; S303 performance test: Professional fire resistance performance testing equipment is used to test the fire resistance limit of fireproof sealing parts to ensure that their fire resistance limit is not less than 3.5 hours. At the same time, advanced waterproof and smoke proof testing equipment is used to conduct relevant tests to ensure that the sealing parts can effectively prevent the penetration of water and smoke, and the penetration volume is lower than the minimum value specified by industry standards.

[0016] (3) Beneficial effects Compared with the existing technology, the present invention provides a green and environmentally friendly construction method for fireproofing and blocking in substation installation projects, which has the following beneficial effects: 1. The substation installation project adopts a green and environmentally friendly fireproof sealing construction method, which has excellent environmental performance: this construction method uses non-toxic, odorless, degradable green and environmentally friendly fireproof sealing materials to eliminate harm to the environment and human body from the source. For example, the use of nano-modified water-based fireproof mud, high-performance environmentally friendly fireproof sealant and other materials greatly reduces the pollution problems that may be caused by traditional materials, meets the requirements of modern green construction, and is conducive to protecting the ecological environment and the health of construction and operation and maintenance personnel.

[0017] 2. The substation installation project adopts a green and environmentally friendly fireproof sealing construction method. This construction method has improved fireproof performance: fireproof materials with a fire resistance limit of more than 3.5 hours are used, and precise process control is implemented during the construction process. For example, when sealing cable penetration holes, the thickness of the fireproof mud filling is not less than 220mm and the density is more than 98%. These measures effectively enhance the overall fire resistance of the fireproof sealing, can more reliably resist fire, prevent fire from spreading in substation facilities, and ensure the safety of substation equipment.

[0018] 3. The substation installation project adopts a green and environmentally friendly fireproof sealing construction method with high construction precision: it uses advanced tools such as high-precision electric cutting saws (cutting accuracy ±0.5mm), intelligent control special spray guns, and strict control of various dimensions and parameters during the construction process. For example, the installation error of fireproof partitions is controlled within ±1mm, and the sealing depth is precisely controlled. This makes the fireproof sealing construction more accurate and standardized, ensuring the stability and sealing of the sealing structure.

[0019] 4. The substation installation project adopts a green and environmentally friendly fireproof sealing construction method, and the quality inspection of this construction method is comprehensive and reliable: high-definition imaging equipment, high-precision measuring tools and professional fire-resistant, waterproof and smoke-proof testing equipment are used for quality inspection and acceptance. Compared with traditional methods, it can more comprehensively and accurately detect the appearance quality, dimensional accuracy and key performance of the fireproof sealing parts, timely discover and solve potential quality problems, and ensure that the quality of the fireproof sealing project meets high standards.

[0020] 5. The green and environmentally friendly construction method for fireproof sealing of the substation installation project has significant comprehensive benefits: through this construction method, while ensuring the quality of fireproof sealing, it reduces the subsequent maintenance costs and environmental governance costs that may be caused by traditional materials and construction methods, improves construction efficiency, shortens the construction period, and has good economic and social benefits. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] S1 Construction Preparation: S101 material preparation: Select new green and environmentally friendly fireproof sealing materials that are non-toxic, odorless, and biodegradable, with a fire resistance limit of more than 3.5 hours. For example, nano-modified water-based fireproof mud with an oxygen index of ≥65% and a smoke density rating (SDR) of ≤15 can greatly reduce potential harm to the environment and human health while ensuring fireproof performance. Prepare high-strength, environmentally friendly fireproof partitions with a specification of 50mm×50mm, with a combustion performance of Class A and a bending strength of ≥60MPa to ensure that they are not easily damaged during long-term use. At the same time, equipped with high-performance, environmentally friendly fireproof sealant, the surface drying time is shortened to ≤25 minutes at 20℃-25℃, and the actual drying time is ≤20 hours. It also has good weather resistance and chemical corrosion resistance. S102 tool preparation: Use a high-precision electric cutting saw (cutting accuracy improved to ±0.5mm) to ensure the fireproof partitions are cut to the exact size. Equip a dedicated intelligent control spray gun (the spray pressure can be precisely adjusted between 0.3-0.5MPa) to ensure the fireproof material is sprayed evenly. Prepare fine spatulas and high-quality brushes. All tools are thoroughly inspected and debugged before use to ensure their performance is in optimal condition. S103 Site Preparation: Before construction, the substation installation site must be thoroughly cleaned. Professional cleaning equipment must be used to ensure that the sealed areas are free of oil, dust, and other impurities. High-precision measuring instruments must be used to measure the dimensions of the areas to be sealed, with measurement errors strictly controlled within ±1mm. Based on the measurement results, professional software must be used for precise simulation and analysis to scientifically plan the amount of fireproof sealing materials used to avoid material waste. S2 construction steps: S201 Cable penetration hole sealing: Based on the hole size measurements, a high-precision electric cutting saw is used to cut the fireproof partitions to the appropriate size, with the cutting edge error controlled within ±0.5mm. The cut fireproof partitions are precisely installed at the bottom of the hole as a support layer, and fixed with new expansion bolts. The bolt spacing is optimized to 220mm-240mm to ensure a firm fixation and uniform force. Carefully arrange the cable bundles to keep the gaps between cables uniformly at 6mm-8mm. Use nano-modified water-based fireproof mud to fill around the cable bundles, increasing the filling thickness to no less than 220mm. During the filling process, use professional compacting tools to compact the mud multiple times to ensure that the density of the fireproof mud reaches more than 98% without any gaps. Apply a layer of fireproof sealant with a thickness of 4mm to 6mm evenly on the surface of the fireproof mud, and use a special application tool to ensure that the sealant and the fireproof mud are fully and evenly bonded; Install a fireproof partition above the hole that is precisely aligned with the bottom partition and secure it with anti-loosening bolts to further enhance the stability of the sealing structure and complete the sealing of the cable penetration hole; S202 cabinet hole sealing: Thoroughly clean the debris around the cabinet holes, use high-precision measuring instruments to recheck the hole dimensions, and based on the measurement results, precisely cut the fireproof partitions to fit perfectly with the hole edges, with an error control of ±1mm; Install the cut fireproof partitions in the holes and seal them with high-performance fireproof sealant. Adjust the sealant filling depth to 12mm - 14mm and use special tools to compact the sealant to ensure the sealing effect. Use fireproof mud to fill the gaps between the cables and the cabinet walls in the cabinet. The filling width is increased to no less than 60mm. Use a fine spatula to carefully smooth the surface of the fireproof mud to ensure that it is beautiful and flat while ensuring a tight seal. S203 Pipe penetration hole sealing: For metal pipes, first use an environmentally friendly cleaner to deeply clean the pipe surface, then evenly apply a layer of high-performance fire retardant paint with a thickness of 0.6mm-0.7mm. Wait for the paint to dry (drying time is 1.5-3 hours according to the paint instructions) and pass the inspection before proceeding to the next step; Install fireproof partitions precisely according to the hole size, fill the gaps between the pipes and the fireproof partitions with fireproof mud, and increase the filling thickness to no less than 160mm. Use professional compacting tools to compact the gaps multiple times to ensure that the filling is dense. Apply a layer of fireproof sealant with a thickness of 2.5mm - 3.5mm on the surface of the fireproof mud, and use advanced spraying equipment to ensure that the sealant is evenly covered to further improve the sealing effect; S204 expansion joint sealing: Use high-pressure cleaning equipment to thoroughly clean the debris in the expansion joint to ensure that the joint is clean and free of residue; Fireproof partitions are accurately installed on both sides of the expansion joint. High-performance fireproof sealant is used to seal the partitions and the joint wall. The sealant filling depth is adjusted to 16mm-18mm, and a secondary compaction process is performed to ensure a firm seal. Fill the expansion joint with high-density fireproof cotton, and increase the filling density to 90kg / m 3 - 110kg / m 3 , the filling thickness is reasonably determined according to the width of the expansion joint and is not less than 120mm; Apply fireproof sealant evenly on the surface of the fireproof cotton with a thickness of 3.5mm - 4.5mm. Use professional testing equipment to conduct real-time testing of the sealing effect to ensure that the expansion joint has good fireproof and sealing performance; S3 quality inspection and acceptance: S301 Appearance Inspection: Use high-definition imaging equipment to conduct a full-scale inspection of the surface of the fireproof sealing part to ensure that the surface is flat and smooth, the fireproof mud and fireproof sealant materials are evenly applied, and there are no cracks, holes or other defects. At the same time, check the firmness of the fireproof partition installation and the neatness of the edges. The error is strictly controlled within the allowable range; S302 Dimension Inspection: Use high-precision measuring tools to accurately measure the thickness and width of key dimensions of fireproofing, and carefully compare them with construction requirements, with the error strictly controlled within ±3mm; S303 performance test: Fire resistance limit tests are conducted on fireproof sealing parts using professional fire resistance testing equipment to ensure that their fire resistance limit is not less than 3.5 hours. At the same time, advanced waterproof and smoke test equipment are used to conduct relevant tests to ensure that the sealing parts can effectively prevent water and smoke penetration, and the penetration rate is lower than the minimum value specified by industry standards; The above-mentioned green and environmentally friendly construction method after comprehensive improvement and optimization can not only significantly improve the quality and effect of fireproof sealing in substation installation projects, but also better meet green environmental protection requirements and provide a solid guarantee for the safe and stable operation of substation equipment. Furthermore, this construction method has excellent environmental performance: it uses non-toxic, odorless, biodegradable, green and environmentally friendly fireproof sealing materials, eliminating harm to the environment and human body at the source. For example, the use of materials such as nano-modified water-based fireproof mud and high-performance environmentally friendly fireproof sealant greatly reduces the pollution problems that may be caused by traditional materials. It meets the requirements of modern green construction and is beneficial to protecting the ecological environment and the health of construction and operation and maintenance personnel. Furthermore, this construction method improves fire resistance: it uses fireproof materials with a fire resistance limit of more than 3.5 hours, and through precise process control during the construction process, such as the fireproof mud filling thickness of not less than 220mm and a density of more than 98% when sealing cable penetration holes, it effectively enhances the overall fire resistance of the fireproof blockage, can more reliably resist fire, prevent fire from spreading in the substation facilities, and ensure the safety of substation equipment; Furthermore, this construction method boasts high precision: using advanced tools such as high-precision electric cutting saws (cutting accuracy ±0.5mm), intelligently controlled special spray guns, and strict control of various dimensions and parameters during the construction process, such as fireproof partition installation tolerances within ±1mm and precise control of sealant filling depth, this makes fireproof sealing construction more accurate and standardized, ensuring the stability and sealing of the sealing structure. Furthermore, this construction method offers comprehensive and reliable quality inspections: Using high-definition imaging equipment, high-precision measuring tools, and specialized fire resistance, waterproofing, and smoke resistance testing equipment for quality inspection and acceptance, this method can more comprehensively and accurately detect the appearance quality, dimensional accuracy, and key performance of fireproofing seals than traditional methods, enabling the timely identification and resolution of potential quality issues, ensuring that fireproofing seals meet high quality standards. Furthermore, this construction method has significant comprehensive benefits: while ensuring the quality of fireproof sealing, it reduces the subsequent maintenance costs and environmental governance costs that may be caused by traditional materials and construction methods, improves construction efficiency, shortens the construction period, and has good economic and social benefits.

[0023] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. The green and environmentally friendly construction method for fireproofing and blocking of substation installation projects includes S1 construction preparation, S2 construction steps, and S3 quality inspection and acceptance, and is characterized by: The S1 construction preparation includes S101 material preparation, S102 tool preparation and S103 site preparation; Among them, the S2 construction steps include S201 cable penetration hole sealing, S202 cabinet hole sealing, S203 pipe penetration hole sealing and S204 expansion joint sealing; Among them, S3 quality inspection and acceptance includes S301 appearance inspection, S302 dimension inspection and S303 performance test.

2. The green and environmentally friendly fireproofing and blocking construction method for substation installation engineering according to claim 1 is characterized by: The S101 material preparation: Select new green and environmentally friendly fireproof sealing materials that are non-toxic, odorless, degradable, and have a fire resistance limit of more than 3.5 hours. For example, nano-modified water-based fireproof mud is used, with an oxygen index of ≥65% and a smoke density level (SDR) of ≤15. It can greatly reduce potential harm to the environment and human body while ensuring fireproof performance. Prepare high-strength environmentally friendly fireproof partitions with a specification of 50mm×50mm. Its combustion performance reaches Class A and its bending strength is increased to ≥60MPa to ensure that it is not easily damaged during long-term use. At the same time, it is equipped with high-performance environmentally friendly fireproof sealant. At 20℃-25℃, the surface drying time is shortened to ≤25 minutes, the actual drying time is ≤20 hours, and it has good weather resistance and chemical corrosion resistance.

3. The green and environmentally friendly fireproofing and blocking construction method for substation installation engineering according to claim 1 is characterized by: The S102 tool preparation: A high-precision electric cutting saw (with cutting accuracy improved to ±0.5mm) is used to ensure the precise cutting size of the fireproof partitions. A special intelligent control spray gun is equipped (the spray pressure can be precisely adjusted between 0.3-0.5MPa) to ensure uniform spraying of the fireproof material. At the same time, fine spatulas and high-quality brushes are prepared. All tools are thoroughly inspected and debugged before use to ensure their performance is in optimal condition.

4. The green and environmentally friendly fireproofing and blocking construction method for a substation installation project according to claim 1 is characterized by: The S103 site preparation: Before construction, the substation installation site must be thoroughly cleaned, and professional cleaning equipment must be used to ensure that there is no oil, dust or impurities remaining in the sealed areas. High-precision measuring instruments must be used to measure the dimensions of the areas to be sealed, with measurement errors strictly controlled within ±1mm. Based on the measurement results, professional software must be used for precise simulation and analysis to scientifically plan the use of fire-proof sealing materials and avoid material waste.

5. The green and environmentally friendly fireproofing and blocking construction method for substation installation engineering according to claim 1 is characterized by: The S201 cable penetration hole is sealed: Based on the hole size measurements, a high-precision electric cutting saw is used to cut the fireproof partitions to the appropriate size, with the cutting edge error controlled within ±0.5mm. The cut fireproof partitions are precisely installed at the bottom of the hole as a support layer, and fixed with new expansion bolts. The bolt spacing is optimized to 220mm-240mm to ensure a firm fixation and uniform force. Carefully arrange the cable bundles to keep the gaps between cables uniformly at 6mm-8mm. Use nano-modified water-based fireproof mud to fill around the cable bundles, increasing the filling thickness to no less than 220mm. During the filling process, use professional compacting tools to compact the mud multiple times to ensure that the density of the fireproof mud reaches more than 98% without any gaps. Apply a layer of fireproof sealant with a thickness of 4mm to 6mm evenly on the surface of the fireproof mud, and use a special application tool to ensure that the sealant and the fireproof mud are fully and evenly bonded; A fireproof partition precisely aligned with the bottom partition is installed above the hole and fixed with anti-loosening bolts to further enhance the stability of the sealing structure and complete the sealing of the cable penetration hole.

6. The green and environmentally friendly fireproof and plugging construction method for substation installation engineering according to claim 1 is characterized by: The S202 cabinet hole sealing: Thoroughly clean the debris around the cabinet holes, use high-precision measuring instruments to recheck the hole dimensions, and based on the measurement results, precisely cut the fireproof partitions to fit perfectly with the hole edges, with an error control of ±1mm; Install the cut fireproof partitions in the holes and seal them with high-performance fireproof sealant. Adjust the sealant filling depth to 12mm - 14mm and use special tools to compact the sealant to ensure the sealing effect. The gaps between the cables and the cabinet walls in the cabinet are filled with fireproof mud. The filling width is increased to no less than 60mm, and the surface of the fireproof mud is carefully smoothed with a fine spatula to ensure beauty and flatness while ensuring a tight seal.

7. The green and environmentally friendly fireproof and plugging construction method for substation installation engineering according to claim 1 is characterized by: The S203 pipeline penetration hole is sealed: For metal pipes, first use an environmentally friendly cleaner to deeply clean the pipe surface, then evenly apply a layer of high-performance fire retardant paint with a thickness of 0.6mm-0.7mm. Wait for the paint to dry (the drying time is 1.5-3 hours according to the paint instructions) and pass the inspection before proceeding to the next step; Install fireproof partitions precisely according to the hole size, fill the gaps between the pipes and the fireproof partitions with fireproof mud, and increase the filling thickness to no less than 160mm. Use professional compacting tools to compact the gaps multiple times to ensure that the filling is dense. Apply a layer of fireproof sealant with a thickness of 2.5mm - 3.5mm on the surface of the fireproof mud, and use advanced spraying equipment to ensure uniform coverage of the sealant to further improve the sealing effect.

8. The green and environmentally friendly fireproof and plugging construction method for substation installation engineering according to claim 1 is characterized by: The S204 expansion joint sealing: Use high-pressure cleaning equipment to thoroughly clean the debris in the expansion joint to ensure that the joint is clean and free of residue; Fireproof partitions are accurately installed on both sides of the expansion joint. High-performance fireproof sealant is used to seal the partitions and the joint wall. The sealant filling depth is adjusted to 16mm-18mm, and a secondary compaction process is performed to ensure a firm seal. Fill the expansion joint with high-density fireproof cotton, and increase the filling density to 90kg / m 3 - 110kg / m 3 , the filling thickness is reasonably determined according to the width of the expansion joint and is not less than 120mm; Apply fireproof sealant evenly on the surface of the fireproof cotton with a thickness of 3.5mm - 4.5mm. Use professional testing equipment to conduct real-time testing of the sealing effect to ensure that the expansion joint has good fireproof and sealing properties.

9. The green and environmentally friendly fireproofing and blocking construction method for substation installation engineering according to claim 1 is characterized by: The S301 appearance inspection: High-definition imaging equipment is used to conduct a full-scale inspection of the surface of the fire-proof sealing area to ensure that the surface is flat and smooth, the fire-proof mud and fire-proof sealant materials are evenly applied, and there are no cracks, holes or other defects. At the same time, the firmness of the installation of the fire-proof partition and the neatness of the edges are checked, and the error is strictly controlled within the allowable range.

10. The green and environmentally friendly fireproof and plugging construction method for substation installation engineering according to claim 1, characterized in that: The S302 dimensional inspection: Use high-precision measuring tools to accurately measure the thickness and width of key dimensions of fireproofing, and carefully compare them with construction requirements, with the error strictly controlled within ±3mm; S303 performance test: Use professional fire resistance performance testing equipment to test the fireproof sealing parts to ensure that their fire resistance limit is not less than 3.5 hours. At the same time, use advanced waterproof and smoke test equipment to conduct relevant tests to ensure that the sealing parts can effectively prevent the penetration of water and smoke, and the penetration rate is lower than the minimum value specified by industry standards.