A large power equipment assembled ground installation platform system
By combining the energy dissipation and vibration reduction equipment platform system with the support and reinforcement system, the problem of insufficient seismic and fire resistance of large power equipment platforms is solved, achieving efficient construction and improved equipment safety, and possessing good durability and flexibility.
Patent Information
- Application Number
- CN202211271231.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-18
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2042-10-18
AI Technical Summary
Existing installation platforms for large power equipment are inadequate in terms of seismic and fire resistance. In particular, concrete structures have long construction periods and poor flexibility, while steel structures have poor fire resistance and weak corrosion resistance. Existing vibration reduction solutions are not effective for large equipment and cannot meet safety requirements.
The energy dissipation and vibration reduction equipment platform system, including fireproof equipment platform slabs, fireproof equipment platform beams and fireproof equipment platform columns, combined with fixing mechanisms and energy dissipation and vibration reduction mechanisms, and the prefabricated structure formed by damping devices and tensioning connectors, achieves good seismic and fire resistance performance, and the components can be prefabricated in the factory and assembled on site.
It improves the construction efficiency and component reuse rate of large power equipment, enhances the safety and durability of the equipment, meets the requirements of earthquake resistance and fire prevention, and has the advantages of prefabricated construction, which facilitates later maintenance.
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Figure CN115681682B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a kind of installation platform suitable for large power equipment, in particular, a large power equipment assembly type ground installation platform system. BACKGROUND
[0002] Large power equipment such as transformer is generally installed on the ground by equipment platform, and the platform for placing large power equipment becomes an important facility to ensure the normal operation of large power equipment, and the anti-seismic performance and fireproof performance of the platform structure are particularly important. If the equipment platform collapses due to vibration or is damaged due to fire, it will cause huge economic losses.
[0003] Traditional equipment platforms are mostly in the form of concrete structure or steel structure. However, the concrete structure form is mostly cast-in-place structure, which has a slow construction period, weak anti-seismic performance, and lacks flexibility in layout. When the equipment position needs to be moved, the concrete structure equipment platform can only be demolished, the component reuse rate is low, the economic and environmental protection performance is poor, and the land area is large, which is not suitable for areas such as substations where the land area is extremely tight. The equipment platform in the form of steel structure has poor fireproof performance, weak anti-seismic performance, and poor corrosion resistance.
[0004] At present, a known fixing structure of high-voltage transformer includes a bottom plate fixed to the ground, a mounting plate added above the bottom plate for fixing the high-voltage transformer, and a buffer assembly added between the bottom plate and the mounting plate. The buffer assembly includes an elastic rubber pad added between the bottom plate and the mounting plate. The bottom plate is fixed to the ground by fixing bolts, and the high-voltage transformer is fixed to the mounting plate by mounting bolts. This fixing structure can reduce the amplitude of vibration of the high-voltage transformer to some extent and improve its service life. However, based on the combination of the bottom plate, the mounting plate, and the elastic rubber pad, the shock absorption performance is poor, and after placing a large power equipment with heavy weight, the shock absorption effect is further weakened. The ground is not effectively fixed, which cannot meet the requirements of superior anti-seismic performance and cannot provide comprehensive protection for the fire safety of large power equipment. SUMMARY
[0005] In order to overcome the above-mentioned deficiencies of the related art, the present application provides a large power equipment assembly type ground installation platform system, which has good anti-seismic performance and fireproof performance, can ensure the safety of the equipment, and has various advantages of assembly type.
[0006] The technical solution adopted by the present application to solve its technical problems is:
[0007] The utility model provides a large -scale power equipment assembled ground installation platform system, including energy dissipation shock absorber equipment platform system and support reinforcement system, energy dissaporation shock absorber equipment platform system includes fireproof equipment platform board, fireproof equipment platform beam and fireproof equipment platform column that are assembled together, and power equipment is installed on fireproof equipment platform board, and can be fixedly connected in the upper portion of support reinforcement system through fireproof equipment platform column, and the lower portion of support reinforcement system is connected with ground,
[0008] Energy dissipation shock absorber equipment platform system still includes fixing mechanism and energy dissipation shock absorber mechanism, fixing mechanism includes reinforcing plate arranged between fireproof equipment platform beam and fireproof equipment platform column, first tensioning connecting piece arranged between fireproof equipment platform column and second tensioning connecting piece arranged between fireproof equipment platform column and support reinforcement system, and energy dissipation shock absorber mechanism includes damper device arranged between fireproof equipment platform column.
[0009] Optionally, the fireproof equipment platform board comprises a structural plate and a first fireproof layer structure arranged outside the structural plate.
[0010] The fireproof equipment platform column comprises a structural column and a second fireproof layer structure arranged outside the structural column.
[0011] The fireproof equipment platform beam comprises a structural beam and a third fireproof layer structure arranged outside the structural beam.
[0012] Optionally, the fireproof equipment platform board further comprises limiters fixed to left and right ends of the structural plate and equipment supports arranged on the upper portion of the structural plate for installing power equipment.
[0013] Optionally, the first fireproof layer structure, the second fireproof layer structure and the third fireproof layer structure each comprise a fireproof plate coated with fireproof paint, a support furring and a hanging rod, a plurality of the hanging rods are fixed to the surface of the structural plate, the structural column or the structural beam, the fireproof plate is fixed to one side of the support furring, and the other side of the support furring is connected to the hanging rod.
[0014] Optionally, the surface of the structural plate, the limiters, the equipment supports, the structural column and / or the structural beam has a fireproof coating.
[0015] Optionally, the support reinforcement system comprises a platform foundation, the fireproof equipment platform column of the energy dissipation shock absorber equipment platform system is connected to the upper portion of the platform foundation, and the lower portion of the platform foundation is fixed to the ground.
[0016] A horizontal foundation expansion plate is connected to the ground on the outer side of the platform foundation, and the horizontal foundation expansion plate is connected to the fireproof equipment platform column through a connected vertical support plate.
[0017] Optionally, the platform bases are in one-to-one correspondence with the number of the fireproof equipment platform columns, and pipeline trenches are arranged between the platform bases; the fireproof equipment platform columns are connected with the platform bases through fireproof equipment platform supports.
[0018] Optionally, a cushion layer is further arranged between the support and reinforcement system and the ground, and the cushion layer is formed on the ground and fixedly connected with the support and reinforcement system.
[0019] Optionally, a plurality of damping devices are arranged in the vertical direction of the fireproof equipment platform column, and the first tensioning connecting piece is arranged in a mesh shape and overlaps the damping devices.
[0020] Optionally, the first tensioning connecting piece and the second tensioning connecting piece are both steel wire ropes.
[0021] Compared with the related art, the large-scale power equipment assembly type ground installation platform system of the present application guarantees the good seismic performance of the equipment platform through the fixing mechanism and the energy dissipation and shock absorption mechanism of the energy dissipation and shock absorption equipment platform system and the support and reinforcement system, guarantees the good fire resistance of the equipment platform through the arrangement of the energy dissipation and shock absorption equipment platform system composed of the fireproof equipment platform plate, the fireproof equipment platform beam and the fireproof equipment platform column, thereby guaranteeing the safety of the equipment, and the energy dissipation and shock absorption equipment platform system and the support and reinforcement system both have the advantages of assembly type, flexible arrangement, pre-production of the components in the factory and then transportation to the site for assembly, improved construction efficiency, shortened construction period, replaceable equipment platform components, convenient post-maintenance, greatly increased durability and structural safety of the equipment platform. BRIEF DESCRIPTION OF DRAWINGS
[0022] The present application will be further described below in combination with the drawings and embodiments.
[0023] Figure 1 is the front view of one embodiment of the present application, and the ground below is shown in cross-sectional form.
[0024] Figure 2 is the side view of one embodiment of the present application, and the ground below is shown in perspective form.
[0025] Figure 3 is the top perspective view of one embodiment of the present application.
[0026] Figure 4 is the perspective view of the structural plate of the fireproof equipment platform plate in one embodiment of the present application.
[0027] Figure 5 is the perspective view of the structural column of the fireproof equipment platform column in one embodiment of the present application.
[0028] Figure 6is a perspective view of a structural beam of a fireproof equipment platform beam in an embodiment of the present application.
[0029] Reference numerals in the drawings:
[0030] 1. An energy dissipation and shock absorption equipment platform system, 11, a fireproof equipment platform plate, 111, a structural plate, 12, a fireproof equipment platform beam, 121, a structural beam, 13, a fireproof equipment platform column, 131, a structural column, 1311, an inner connecting plate, 1311-1, a connecting hole, 1312, an outer connecting plate, 132, a platform support, 1321, a fixed connecting piece, 14, a fixing mechanism, 141, a reinforcing plate, 142, a first tension connecting piece, 143, a second tension connecting piece, 15, an energy dissipation and shock absorption mechanism, 151, a damping device;
[0031] 2. A support and reinforcement system, 21, a platform foundation, 22, a horizontal foundation extension plate, 221, an L-shaped connecting piece B, 3, a vertical support plate, 231, an L-shaped connecting piece, 232, a strip-shaped connecting piece, 233, an L-shaped connecting piece A, 234, a support rod, 24, a pipeline trench, 241, a top plate, 242, a pipeline trench bottom plate, 243, a pipeline support, 244, a triangular connecting piece;
[0032] 3. A cushion layer. DETAILED DESCRIPTION
[0033] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0034] Figures 1 to 6 A structural schematic diagram of a preferred embodiment of the present application is shown, a large power equipment assembled ground installation platform system in the figure, including an energy dissipation and shock absorption equipment platform system 1 and a support and reinforcement system 2; the energy dissipation and shock absorption equipment platform system 1 includes a fireproof equipment platform plate 11, a fireproof equipment platform beam 12 and a fireproof equipment platform column 13 assembled together, a power equipment is installed on the fireproof equipment platform plate 11, and can be fixedly connected to the upper part of the support and reinforcement system 2 through the fireproof equipment platform column 13, and the lower part of the support and reinforcement system 2 is connected with the ground;
[0035] The energy dissipation and shock absorption device platform system 1 further comprises a fixing mechanism 14 and an energy dissipation and shock absorption mechanism 15, the fixing mechanism 14 comprises reinforcing plates 141 arranged between the fireproof device platform beams 12 and the fireproof device platform columns 13, first tension connectors 142 arranged between the fireproof device platform columns 13, and second tension connectors 143 arranged between the fireproof device platform columns 13 and the support reinforcement system 2; and the energy dissipation and shock absorption mechanism 15 comprises damping devices 151 arranged between the fireproof device platform columns 13.
[0036] The specific assembly mode of the fireproof device platform plates 11, the fireproof device platform beams 12 and the fireproof device platform columns 13 can comprise that the lower side of the fireproof device platform plate 11 is connected with one side of the fireproof device platform beam 12, the lower side of the fireproof device platform plate 11 is connected with the upper side of the fireproof device platform column 13, the left and right sides of the fireproof device platform beam 12 are respectively connected with one side of the fireproof device platform column 13, and the reinforcing plates 141 are respectively connected with the fireproof device platform columns 13.
[0037] The large power equipment is installed on the energy dissipation and shock absorption device platform system 1 and then installed on the ground through the support reinforcement system 2. Through the energy dissipation and shock absorption device platform system 1 provided with the fixing mechanism 14 and the energy dissipation and shock absorption mechanism 15 and in cooperation with the support reinforcement system 2, the large power equipment can be fixed and installed, and good anti-seismic performance of the large power equipment can be achieved. Meanwhile, the fireproof device platform plates 11, the fireproof device platform beams 12 and the fireproof device platform columns 13 of the energy dissipation and shock absorption device platform system 1 have good fireproof performance and better ensure the safety of the equipment. In particular, the components of the fixing mechanism 14 and the energy dissipation and shock absorption mechanism 15 are integrated into the structures of the fireproof device platform plates 11, the fireproof device platform beams 12, the fireproof device platform columns 13 and the support reinforcement system 2 and are not isolated, thereby forming a reinforcing and energy dissipation and shock absorption effect of mutual assistance and multiplication. Furthermore, the entire ground installation platform system and various component systems have the advantages of assembly, and the components can be pre-produced in a factory and then transported to a site for assembly, thereby improving construction efficiency, shortening construction period, enabling the equipment platform components to be replaced, facilitating later maintenance, greatly increasing the durability and structural safety of the equipment platform.
[0038] In an optional embodiment of the embodiment, the fireproof device platform plate 11 comprises a structural plate 111 and a first fireproof layer structure arranged outside the structural plate 111.
[0039] The fireproof device platform column 13 comprises a structural column 131 and a second fireproof layer structure arranged outside the structural column 131.
[0040] The fireproof equipment platform beam 12 comprises a structural beam 121 and a third fireproof layer structure arranged outside the structural beam 121.
[0041] The fireproof equipment platform plate 11, the fireproof equipment platform column 13 and the fireproof equipment platform beam 12 are used to build an equipment platform with integral fireproof performance, and each of them is used to realize fireproofing in the form of a structural plate / column / beam covered by a fireproof layer structure.
[0042] In an optional embodiment of the embodiment of the present application, the fireproof equipment platform plate 11 further comprises limiters fixed at left and right ends of the structural plate 111 and an equipment support arranged on the upper part of the structural plate 111 for mounting electrical equipment.
[0043] The limiters are installed on the fireproof equipment platform plate 11 in the form of a fence and are used to fix the equipment on the fireproof equipment platform plate 11 and limit the horizontal displacement of the equipment, especially to prevent the equipment from falling off and protect the equipment and increase the structural safety during an earthquake. Further, the limiters can be fixed at left and right ends of the structural plate 111 by bolts.
[0044] Large electrical equipment such as a transformer can be fixed on the upper part of the structural plate 111 of the fireproof equipment plate by various types of equipment supports. In a more specific optional design, the equipment support is fixed at the upper end of the structural plate 111 by bolts, the upper end of the equipment support is connected to the bottom of the equipment, and a plurality of holes are reserved in the equipment support for fixing the equipment.
[0045] In an optional embodiment of the embodiment of the present application, the first fireproof layer structure, the second fireproof layer structure and the third fireproof layer structure each comprise a fireproof plate coated with fireproof paint, a support batten and a hanging rod, a plurality of hanging rods are fixed on the surface of the structural plate 111, the structural column 131 or the structural beam 121, the fireproof plate is fixed on one side of the support batten, and the other side of the support batten is connected to the hanging rod.
[0046] As a further optional specific implementation, one side of the fireproof plate can be connected to the structural plate 111 by fireproof glue; a plurality of hanging rods are arranged on the surface of the structural column 131 by welding, the fireproof plate is fixed on one side of the support batten by fireproof glue, and the other side of the support batten is provided with a hanging ring; one section of the hanging rod has a bending structure which extends into the hanging ring on one side of the support batten to fix the support batten.
[0047] In an optional embodiment of the present application, the structural plate 111, the position limiter, the equipment support, the structural column 131 and / or the structural beam 121 have a fireproof coating on the surface. The fireproof coating can be formed by spraying fireproof paint on the surface to further improve the fireproof level.
[0048] In an optional embodiment of the present application, the support reinforcement system 2 comprises a platform base 21, and the fireproof equipment platform column 13 of the energy dissipation and shock absorption equipment platform system 1 is connected to the upper part of the platform base 21, and the lower part of the platform base 21 is fixed to the ground.
[0049] The horizontal base expansion plate 22 is connected to the outer side of the platform base 21, and the horizontal base expansion plate 22 is connected to the fireproof equipment platform column 13 through the connected vertical support plate 23.
[0050] In a specific implementation, an outer connecting plate 1312 is arranged on the outer side of the fireproof equipment platform column 13, and the outer connecting plate 1312 is fixedly connected to the vertical support plate 23. More specifically, one side of the outer connecting plate 1312 is connected to one side of the fireproof equipment platform column 13, and a connecting hole is formed in the inner part of the outer connecting plate 1312, one end of the second tensioning connecting piece 143 is connected to the outer connecting plate 1312 through the connecting hole, the other end of the second tensioning connecting piece 143 is connected to the L-shaped connecting piece 231, and the L-shaped connecting piece 231 is fixed to the upper side of the vertical support plate 23 through a bolt.
[0051] In an optional embodiment of the present application, the platform base 21 is one-to-one corresponding to the number of the fireproof equipment platform column 13, and a pipeline trench 24 is arranged between the platform bases 21, and the fireproof equipment platform column is connected to the platform base 21 through the fireproof equipment platform support 132.
[0052] As a further preferred implementation, the lower end of the fire protection equipment platform column 13 is connected with the fire protection equipment platform support 132, and the fire protection equipment platform column 13 is connected with the fire protection equipment platform support 132 through one end of the fixed connecting piece 1321 and the other end of the fixed connecting piece 1321 is connected with the fire protection equipment platform support 132, the top end of the platform foundation 21 is provided with a bolt hole, the lower end of the fire protection equipment platform support 132 is connected with the upper end of the platform foundation 21 through a bolt, the bolt passes through the platform foundation 21 and is fixed in the bolt hole in the platform foundation 21, the upper end of the platform foundation 21 is reserved with a reserved aperture, the top plate 241 of the pipeline trench 24 is connected with the reserved aperture of the platform foundation 21 through lap joint on the left and right sides, one end of the triangular connecting piece 244 is connected with the top plate 241 through a bolt, and the other end of the triangular connecting piece 244 is connected with the platform foundation 21 through a bolt, the left and right ends of the pipeline trench bottom plate 242 are connected with the platform foundation 21 through the triangular connecting piece 244, the lower end of the pipeline support 243 is connected with the strip-shaped connecting piece, the lower end of the strip-shaped connecting piece is connected with the pipeline trench bottom plate 242 through a bolt, one side of the horizontal foundation expansion plate 22 is connected with the platform foundation 21 through the triangular connecting piece 244, one side of the horizontal foundation expansion plate 22 is reserved with a reserved slot, the lower side of the vertical support plate 23 is inserted into the slot of the horizontal foundation expansion plate 22 and is connected through the strip-shaped connecting piece 232, one side of the vertical support plate 23 is provided with an L-shaped connecting piece A233, and one side of the horizontal foundation expansion plate 22 is provided with an L-shaped connecting piece B221, and the two sides of the supporting rod 234 are connected with the L-shaped connecting piece A233 and the L-shaped connecting piece B221 respectively.
[0053] In an optional embodiment of the embodiment of the application, a cushion layer 3 is further arranged between the support and reinforcement system 2 and the ground, and the horizontal foundation expansion plate 22, the platform foundation 21 and the pipeline trench bottom plate 242 are connected with the upper part of the cushion layer 3.
[0054] The cushion layer 3 is a square plain concrete plate, the length and width of the cushion layer 3 are greater than the range of the fire protection equipment platform plate 11, the thickness of the cushion layer 3 is 10-20 cm, and the function of the cushion layer 3 is to make the platform foundation 21 and the horizontal foundation expansion plate 22 fully contact with the foundation and uniformly bear stress, prevent the local uneven settlement of the foundation from affecting the structural stability, and increase the structural stability.
[0055] In an optional embodiment of the present application, the plurality of damping devices 151 are arranged in vertical direction along the fireproof equipment platform column 13, and the first tensioning connecting member 142 is arranged in a net shape and overlaps the damping devices 151. More specifically, an inner connecting plate 1311 is arranged on the inner side of the fireproof equipment platform column 13, and the damping devices 151 and the first tensioning connecting member 142 are arranged by the inner connecting plate 1311. In a further specific design, one side of the inner connecting plate 1311 is connected with one side of the fireproof equipment platform column 13, and a connecting hole 1311-1 is formed in the inner connecting plate 1311, the left and right ends of the damping device 151 are connected with the inner connecting plate 1311 through the connecting hole 1311-1, and the two ends of the first tensioning connecting member 142 are connected with the inner connecting plate 1311 through the connecting hole 1311-1. The main function of the damping device 151 is to dissipate energy and reduce vibration, and the function of the first tensioning connecting member 142 is to reinforce and reduce vibration. The net structure improves the performance, and the damping device 151 and the first tensioning connecting member 142 are arranged in an overlapping manner to support each other. The damping device 151 strengthens the function of the first tensioning connecting member 142, the first tensioning connecting member 142 also constitutes a part of the damping device 151, and the damping effect is multiplied.
[0056] In a preferred optional embodiment of the present application, the first tensioning connecting member 142 and the second tensioning connecting member 143 can be selected as steel wire cables. The steel wire cable is a cable body formed by a steel wire rope after pre-tensioning to eliminate structural deformation, and has better anti-seismic performance.
[0057] The above description is only a preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification and equivalent change made according to the technical essence of the present application to the above embodiment fall within the protection scope of the present application.
Claims
1. A modular ground mounted platform system for large power equipment characterized in that, The energy dissipation and shock absorption device platform system comprises a fireproof device platform plate, a fireproof device platform beam and a fireproof device platform column which are assembled together, power equipment is installed on the fireproof device platform plate and can be fixedly connected to the upper part of the support and reinforcement system through the fireproof device platform column, and the lower part of the support and reinforcement system is connected to the ground. The energy dissipation and shock absorption device platform system further comprises a fixing mechanism and an energy dissipation and shock absorption mechanism, the fixing mechanism comprises a reinforcement plate arranged between the fireproof device platform beam and the fireproof device platform column, a first tensioning connecting piece arranged between the fireproof device platform columns and a second tensioning connecting piece arranged between the fireproof device platform column and the support and reinforcement system, and the first tensioning connecting piece and the second tensioning connecting piece are both steel wire ropes. The support and reinforcement system comprises a platform foundation, the fireproof device platform column of the energy dissipation and shock absorption device platform system is connected to the upper part of the platform foundation, and the lower part of the platform foundation is fixed to the ground. One side of the platform foundation is connected with a horizontal foundation extension plate through a triangular connecting piece, and the horizontal foundation extension plate is connected with the fireproof device platform column through a connected vertical supporting plate. The horizontal foundation extension plate and the vertical supporting plate are connected through a supporting rod. One end of the second tensioning connecting piece is connected to the outer side of the fireproof device platform column, and the other end of the second tensioning connecting piece is fixed to the upper side of the vertical supporting plate. An inner connecting plate is arranged on the inner side of the fireproof device platform column, a damping device and a first tensioning connecting piece are arranged through the inner connecting plate, one side of the inner connecting plate is connected with one side of the fireproof device platform column, a connecting hole is formed in the inner connecting plate, the left and right ends of the damping device are connected with the inner connecting plate through the connecting hole, and the two ends of the first tensioning connecting piece are connected with the inner connecting plate through the connecting hole. The energy dissipation and shock absorption mechanism comprises damping devices arranged between the fireproof device platform columns, a plurality of the damping devices are arranged in the vertical direction of the fireproof device platform column, the first tensioning connecting piece is arranged in a net shape and overlaps the damping devices. The platform foundation is in one-to-one correspondence with the fireproof device platform columns, and a pipeline trench is arranged between the platform foundations, and the fireproof device platform column is connected with the platform foundation through a fireproof device platform support. A cushion layer is further arranged between the support and reinforcement system and the ground, and the cushion layer is formed on the ground and is fixedly connected with the support and reinforcement system.
2. A modular ground mount for large power equipment as defined in claim 1, wherein: The fireproof device platform plate comprises a structure plate and a first fireproof layer structure arranged outside the structure plate, the fireproof device platform column comprises a structure column and a second fireproof layer structure arranged outside the structure column, and the fireproof device platform beam comprises a structure beam and a third fireproof layer structure arranged outside the structure beam.
3. A modular ground mounted platform for large electrical equipment according to claim 2, characterized in that: The fireproof device platform plate further comprises limiters fixed to the left and right ends of the structure plate and equipment supports arranged on the upper part of the structure plate for installing power equipment.
4. A modular ground installation platform for large electrical equipment according to claim 2 or 3, characterized in that: The first fireproof layer structure, the second fireproof layer structure and the third fireproof layer structure each comprise a fireproof plate coated with fireproof paint, a support keel and a hanging rod, a plurality of hanging rods are fixedly arranged on the surface of a structural plate, a structural column or a structural beam, the fireproof plate is fixed on one side of the support keel, and the other side of the support keel is connected to the hanging rod.
5. A modular ground mount platform for large power equipment as defined in claim 4, characterized in that: The surface of the structural plate, the position limiter, the equipment support, the structural column and / or the structural beam is provided with a fireproof coating.
Citation Information
Patent Citations
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