CN113818586A - A enclosure wall body for transformer substation collects fire prevention, sound absorption, pressure release function in an organic whole - Google Patents
A enclosure wall body for transformer substation collects fire prevention, sound absorption, pressure release function in an organic whole Download PDFInfo
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- CN113818586A CN113818586A CN202111009449.0A CN202111009449A CN113818586A CN 113818586 A CN113818586 A CN 113818586A CN 202111009449 A CN202111009449 A CN 202111009449A CN 113818586 A CN113818586 A CN 113818586A
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- E—FIXED CONSTRUCTIONS
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
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- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
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- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
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- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
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- E—FIXED CONSTRUCTIONS
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
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- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/04—Transformer houses; Substations or switchgear houses
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- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
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- E—FIXED CONSTRUCTIONS
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- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8433—Tray or frame type panels or blocks, with or without acoustical filling with holes in their face
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
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- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
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Abstract
The invention relates to a transformer substation enclosure wall integrating fireproof, sound absorption and pressure relief functions, which comprises a main keel, perforated sound absorption plates and first fireproof plates, wherein the perforated sound absorption plates and the first fireproof plates are respectively arranged on the front side and the rear side of the main keel, and the two second fireproof plates are symmetrically arranged on the left side and the right side of the main keel; and sound absorption glass wool is arranged between the perforated sound absorption plate and the second fireproof plate, and fireproof rock wool is arranged between the first fireproof plate and the second fireproof plate. According to the technical scheme, the sound absorption plate and the porous glass wool are adopted on the inner side of the enclosure wall body, so that the enclosure wall body has good sound absorption performance; the outer side of the wall body adopts a type of fireproof plate and rock wool, so that the fireproof performance is better, and the requirement of one-hour fireproof limit can be met; the sound absorption plate and the fireproof plate are both made of brittle materials, and the pressure relief test shows that the sound absorption plate and the fireproof plate have good explosion relief function.
Description
Technical Field
The invention relates to the technical field of enclosure walls for transformer substations, in particular to an enclosure wall for a transformer substation, which integrates the functions of fire prevention, sound absorption and pressure relief.
Background
The arrangement of the transformer substations in all households is compact, all equipment is uniformly distributed in a room, the enclosure wall body of the main transformer room, which is over against the main road in the substation, needs to meet the fire protection requirement of the equipment, and the fire resistance limit is not less than one hour. According to the requirements of national laws and regulations, a main transformer is equipment with explosion danger, the equipment contains cooling oil, and a room needs to be isolated from other rooms by a firewall, so that the requirement of three-hour fire prevention needs to be met; meanwhile, when explosion accidents need to be considered in a room for placing the main transformer, a certain pressure relief channel is arranged to prevent the explosion force from damaging the structure, and further the safety of the whole building is influenced. In addition, the noise of main transformer equipment is relatively high, the room arrangement is usually only about ten meters away from the enclosure of the transformer substation, and if no measures are taken, the noise cannot meet the environmental evaluation requirement after being transmitted, so that some sound insulation and absorption measures are required to be taken to reduce the noise value.
From the above, the enclosure wall of the main transformer chamber needs to meet the requirements of fire prevention, sound absorption and pressure relief. The conventional enclosure wall body is difficult to meet the requirements at the same time, and two or three kinds of wall bodies need to be overlapped to realize the three functions, so that the wall body is thick, the installation is complex, the manufacturing cost is high, and the construction of a building is seriously influenced. The existing main transformer chamber walls are various in types, such as metal sandwich plates, fiber cement light plates and the like, but no wall can simultaneously meet three functions. However, this approach has two disadvantages: firstly, the cost is higher, and secondly the sound absorption barrier that increases influences the pressure release effect, and the influence size has not stipulated or experimental support yet, and the reliability remains to be studied.
The three functional walls are mainly required by a main transformer chamber in a transformer substation, other industrial building methods are used for reference in the design of the existing transformer substation, and a standard double-layer profiled metal plate composite heat-insulation sound-absorption outer wall structure can be adopted, so that the structure is mainly distinguished from the scheme of the invention by the following two points: firstly, the wall plates in the specification are metal plates, and the service life of most of the metal plates cannot meet the use requirement of the transformer substation for 50 years, so the invention adopts the fiber cement fireproof plate, and the detailed connection structures of the fiber cement fireproof plate are slightly different; and secondly, the fire resistance of the metal plate composite wall is general and does not meet the fire resistance requirement of 3 hours.
Disclosure of Invention
The invention aims to provide the enclosure wall body for the transformer substation, which integrates the functions of fire prevention, sound absorption and pressure relief, is suitable for a main transformer chamber of the transformer substation, and has the characteristics of simple structure, convenience in installation, safe structure and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a containment wall for a transformer substation integrating fireproof, sound absorption and pressure relief functions comprises a main keel, perforated sound absorption plates and first fireproof plates which are respectively arranged on the front side and the rear side of the main keel, and two second fireproof plates which are symmetrically arranged on the left side and the right side of the main keel; and sound absorption glass wool is arranged between the perforated sound absorption plate and the second fireproof plate, and fireproof rock wool is arranged between the first fireproof plate and the second fireproof plate.
Furthermore, the sound absorption glass wool comprises two parts positioned at the left side and the right side of the main keel, and the inner ends of the two parts of sound absorption glass wool are respectively connected to the main keel through a cold-bending channel steel keel; the cold-bending channel steel keel is connected with the main keel through a self-tapping screw; the sound absorption glass wool has the thickness of 50mm and the volume weight of 32kg/m3。
Furthermore, the fireproof rock wool comprises two parts which are positioned at the left side and the right side of the main keel, the inner ends of the two parts of fireproof rock wool are respectively connected with the main keel through a C-shaped light steel keel, and the C-shaped light steel keel is connected with the main keel through a self-tapping screw; the thickness of the fireproof rock wool is 100mm, and the volume weight is 100kg/m3。
Further, the perforated sound absorption plate is connected with the main keel through an I-shaped aluminum alloy clamping piece, and the I-shaped aluminum alloy clamping piece is connected with the main keel through a self-tapping screw; the perforated sound absorption plate is an inorganic ceramic magnesium plate, the thickness of the perforated sound absorption plate is 9mm, the perforation aperture is 8mm, the hole center distance is 20mm, and the perforation rate is 10.4%.
Furthermore, the first fireproof plate is connected with the main keel through omega-shaped metal clamping pieces, and the omega-shaped metal clamping pieces are connected with the main keel through self-tapping screws.
Furthermore, the first fireproof plate and the second fireproof plate are both made of asbestos-free silicate plates.
Further, the sound absorption function requires that the board is a porous light material, the fireproof function requires that the board is a compact non-combustible material, and the pressure release function requires that the board is a light material, so that the requirement of the fireproof function is contradictory to the sound absorption and pressure release functions, and the difficulty of the invention is that one wallboard needs to be found to realize three functions. Due to the three functions, the weight of the wallboard is not more than 60kg/m when the pressure relief is removed2Besides, the fireproof function needs to be determined according to a detailed construction test; the sound absorption function needs to be comprehensively determined according to room arrangement, equipment height, noise source parameters, wallboard size and the like, and the applicant of the invention obtains accurate and reliable data values by adopting a numerical simulation means and a test method through creative labor. The wall board is required to be a light material for sound absorption and pressure release functions, so that the invention of the wall board firstly needs to solve the fire prevention problem, selects non-combustion material rock wool with good fire resistance, and matches with a high-grade fire-resistant fiber cement board to realize the three-hour fire prevention requirement, wherein the weight of the rock wool material is generally 80-120 kg/m3When the weight is heavy, the weight of the wall board is increased, the requirement of sound absorption and pressure relief is not facilitated, and when the weight is heavy, the requirement of fire prevention is not facilitated, so that the weight of the selected rock wool is 100kg/m3And two layers of high-density fiber cement boards with the thickness of 9mm are arranged on two sides respectively, and the composition is adopted to carry out a fire resistance test, so that the requirement of 3-hour fire resistance limit can be met. Meanwhile, according to an explosion test, the fiber cement board on the surface layer is easy to break under the action of explosive force, and has a good pressure relief effect. In order to meet the requirement of sound absorption function, the material is light glass wool with more pores and good sound absorption effect, and is an inorganic ceramic magnesium board, the thickness of the selected perforated sound absorption board is 9mm, the perforation aperture is 8mm, and the hole center distance is 20 mm.
According to the technical scheme, the sound absorption plate and the porous glass wool are adopted on the inner side of the enclosure wall body, so that the enclosure wall body has good sound absorption performance; the outer side of the wall body adopts a type of fireproof plate and rock wool, so that the fireproof performance is better, and the requirement of one-hour fireproof limit can be met; the sound absorption plate and the fireproof plate are both made of brittle materials, and the pressure relief test shows that the sound absorption plate and the fireproof plate have good explosion relief function.
Drawings
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second structural view of the present invention (not including the first fireproof rock wool and the first fireproof plate in the left half);
FIG. 3 is a top view of the present invention;
fig. 4 is a sound absorption frequency characteristic curve of the present invention.
Wherein:
10. the sound absorption plate comprises a perforated sound absorption plate body 11, sound absorption glass wool 12, fire prevention plates II and 13, fire prevention rock wool 14, fire prevention plates I and II 20, main keels 21, cold-bending channel steel keels 22, C-shaped light steel keels 23, omega-shaped metal clamping pieces 24, I-shaped aluminum alloy clamping pieces 25 and self-tapping screws.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 3, the enclosure wall for the transformer substation integrating the functions of fire prevention, sound absorption and pressure relief comprises a main keel 20, perforated sound absorption plates 10 and first fireproof plates 14 respectively arranged at the front side and the rear side of the main keel 20, and two second fireproof plates 12 symmetrically arranged at the left side and the right side of the main keel 20. And sound absorption glass wool 11 is arranged between the perforated sound absorption plate 10 and the second fireproof plate 12, and fireproof rock wool 13 is arranged between the first fireproof plate 14 and the second fireproof plate 12. A vertical main keel 20 is arranged between the perforated sound absorption plate 10 and the fireproof plate 14 and used for supporting an integrated enclosure wall, and the section of the main keel 20 is 160 multiplied by 80 multiplied by 4.0mm, and the interval is 2000 mm. The main keel 20 is connected and fixed with the frame structure of the building through bolts, and the installation and the use of the invention can be completed.
The enclosure wall body comprises a perforated sound absorption plate 10, sound absorption glass wool 11, a fireproof plate II 12, fireproof rock wool 13 and a fireproof plate I14 from inside to outside in sequence, and the total thickness is 185 mm. The thickness of perforation acoustic baffle 10 is 9mm, and the height of cold-formed channel steel fossil fragments 21 is 50mm, and the thickness of PLASTIC LAMINATED 14 and PLASTIC LAMINATED two 12 is 9mm, and C type light gauge steel 22 highly is 100mm, and the interval of cold-formed channel steel fossil fragments 21 and C type light gauge steel 22 is 500 mm. Rectangular steel pipes of 160 multiplied by 80 multiplied by 4.0mm are arranged between the perforated sound-absorbing plate 10 and the first fireproof plate as main keels 20, and the distance between the main keels 20 is 2000 mm.
Furthermore, the sound absorption glass wool 11 comprises two parts located on the left side and the right side of the main keel 20, and the inner ends of the two parts of sound absorption glass wool 11 are connected to the main keel 20 through a cold-bending channel steel keel 21 respectively. The sound absorption glass wool 11 adopts a cold-formed channel steel keel 21 as a supporting framework, the section of the cold-formed channel steel 21 is 50 multiplied by 30 multiplied by 2.0mm, and the distance is 500 mm. The cold bending channel steel keel 21 is connected with the main keel 20 through a self-tapping screw 25; the sound absorption glass wool 11 has the thickness of 50mm and the volume weight of 32kg/m3. The noise of the main transformer belongs to the low and medium frequency noise, and according to an acoustic test report, the composite sound absorption structure has a good sound absorption effect on the low and medium frequency noise. The composite sound absorption structure refers to a structure consisting of a perforated sound absorption plate with the thickness of 9mm, glass wool with the thickness of 50mm and a thick cavity. The thick cavity is a fire-resistant rock wool layer in the simulated wallboard in order to be consistent with the actual wallboard thickness. The glass wool is a porous material, has inherent sound absorption characteristics, has different sound absorption coefficients for sound sources with different frequencies, and is related to material characteristics, thickness, sound absorption plate size, holes and the like.
Further, the fireproof rock wool 13 comprises two parts which are positioned at the left side and the right side of the main keel 20, the inner ends of the two parts of fireproof rock wool 13 are respectively connected with the main keel 20 through a C-shaped light steel keel 22, and the C-shaped light steel keel 22 is connected with the main keel 20 through a self-tapping screw 25; the thickness of the fireproof rock wool 13 is 100mm, and the volume weight is 100kg/m3The C-shaped light steel keel 22 is used as a supporting framework, the section of the C-shaped light steel keel 22 is C100 multiplied by 50 multiplied by 20 multiplied by 2.5mm, the distance is 500mm, and the C-shaped light steel keel 22 is connected and fixed with the main keel 20 by self-tapping screws.
Further, the perforated sound absorption plate 10 is connected with the main keel 20 through an I-shaped aluminum alloy clamping piece 24, and the I-shaped aluminum alloy clamping piece 24 is connected with the main keel 20 through a self-tapping screw 25; the perforated sound absorption plate 10 is an inorganic ceramic magnesium plate, the thickness is 9mm, the perforation aperture is 8mm, the hole center distance is 20mm, and the perforation rate is 10.4%.
Further, the first fireproof plate 14 is connected with the main keel 20 through omega-shaped metal fasteners 23, and the omega-shaped metal fasteners 23 are connected with the main keel 20 through self-tapping screws 25. And the joints between the first fire-proof plates 14 are sealed by adopting silicone weather-resistant glue.
Further, the first fire-proof plate 14 and the second fire-proof plate 12 both adopt asbestos-free silicate plates.
The fire resistance of the enclosure wall body is tested to obtain that the fire resistance of the enclosure wall body is 240 min. The specific process of the fire resistance test is as follows: the enclosure wall body is installed on a frame with the length of 3 meters and the width of 3 meters, and then the frame is hoisted to the side face, which is not closed, of the cubic detection furnace with 5 closed faces, so that the detection furnace with 6 closed faces is formed. 12 appointed temperature monitoring points are installed on the back fire surface of the enclosure wall body. And (3) detecting furnace ignition, raising the temperature in the furnace according to a standard temperature rise curve (ISO temperature rise curve), raising the temperature to 660 ℃ in 10 minutes, raising the temperature to 820 ℃ in 30 minutes, raising the temperature to 925 ℃ in 60 minutes, raising the temperature to 1030 ℃ in 120 minutes, and keeping the temperature until the detection is finished. During detection, the maximum temperature of 12 temperature monitoring points is not more than 180 ℃, and the average temperature is not more than 140 ℃. And moreover, a through crack cannot exist, if the through crack has smoke or flame, a detection worker clamps cotton to be close to the smoke or flame, and if the cotton catches fire, the enclosure wall loses the fireproof function. After the enclosure wall is subjected to high-temperature detection for 4 hours, the enclosure wall does not deform and collapse, and the temperature monitoring points meet the requirements; no through-cracks caused ignition of the cotton. Therefore, the enclosure wall body meets the fire protection requirement of 4 hours through fire protection detection.
The sound absorption performance of the enclosure wall body is tested, and the sound absorption frequency characteristic curve of the enclosure wall body is obtained and is shown in figure 4. The concrete process of the sound absorption performance test is as follows: the enclosure wall body is arranged on a frame with the length of 3.6 meters and the width of 3 meters, the cold-bending channel steel keel is firstly arranged, glass wool is filled in a cavity of the keel, the perforated sound-absorbing board is fixed on the surface of the cold-bending channel steel keel by I-shaped aluminum alloy clamping pieces, elastic rubber strips are laid between the I-shaped aluminum alloy clamping pieces and the cold-bending channel steel keel and between the perforated sound-absorbing board and the cold-bending channel steel keel, and the enclosure wall body has the functions of improving the anti-seismic performance and the impact sound by flexible connection, enhancing the shock absorption effect and improving the sound absorption and noise reduction functions. After the installation is finished, the noise equipment (12-face nondirectional loudspeaker) sequentially emits 100HZ to 5000HZ noise at a certain frequency interval, the actually generated noise is reduced under the action of a wall body consisting of a perforated sound-absorbing board, glass wool and a cavity, the data detected by a noise test instrument (a building acoustic analyzer) is scientifically calculated to obtain the noise reduction amplitude of 70 percent, namely the sound absorption and noise reduction coefficient is 0.7.
The noise of electrical equipment in the transformer substation is mainly concentrated in 125 HZ-1000 HZ, wherein the sound power grade of 500HZ is highest, and the sound absorption coefficient is not less than 0.6 under the high requirement standard according to the requirement of indoor sound absorption coefficient in the description of building sound insulation and sound absorption structure 08J 931. According to the test piece sound absorption frequency characteristic curve shown in fig. 4, the sound absorption coefficients of the enclosure wall body are all larger than or equal to 0.6 in the frequency band below 1000HZ, and the enclosure wall body has a good sound absorption effect.
The explosion venting performance test is carried out on the enclosure wall body, and the fact that after the wall board is subjected to the shock wave action with the peak pressure of 100kPa, the explosion venting plate on the explosion-facing surface completely falls off, and the lower half part of the explosion venting plate on the explosion-backing surface falls off is obtained. The specific process of explosion venting performance test is as follows: the enclosure wall body is arranged on a frame with the width of 1.22 meters and the height of 2.44 meters, a circular TNT explosive ball is hung at a position 2.88 meters away from the center of the enclosure wall body, and after the remote control explosive explodes, the instantaneous maximum pressure (peak pressure) of the explosion shock wave reaching the surface of the explosion venting wall is 100 KPa. After the air shock wave action of 100KPa, all the indoor side explosion venting plate (explosion facing surface) falls off (namely, crushing and pressure relief), and the lower half part of the outdoor side explosion venting plate (back explosion facing surface) falls off (namely, opening and pressure relief).
The innovation of the invention is that one system is adopted to realize three functional requirements, because the three functional requirements are not identical to the requirements of materials, are mutually exclusive and are not simple superposition, and relevant parameters need to be determined through experiments. At the same time, needs to be combined with buildingsThe service life requirement is met, and the existing products cannot meet the requirement at the same time. The sound absorption and pressure release functions require that the wallboard is made of a light material, so that the invention of the wallboard firstly needs to solve the fire-proof problem, selects non-combustion material rock wool with better fire resistance, and matches with a high-grade fire-resistant fiber cement board to meet the fire-proof requirement for three hours. The weight of the rock wool material is generally 80-120 kg/m3When the weight is heavy, the weight of the wall board is increased, the requirement of sound absorption and pressure relief is not facilitated, and when the weight is heavy, the requirement of fire prevention is not facilitated, so that the weight of the selected rock wool is 100kg/m3And two layers of high-density fiber cement boards with the thickness of 9mm are arranged on two sides respectively, and the composition is adopted to carry out a fire resistance test, so that the requirement of 3-hour fire resistance limit can be met. Meanwhile, according to an explosion test, the fiber cement board on the surface layer is easy to break under the action of explosive force, and has a good pressure relief effect. In order to meet the requirement of sound absorption function, the material is light glass wool with more pores and good sound absorption effect, and is an inorganic ceramic magnesium board, the thickness of the selected perforated sound absorption board is 9mm, the perforation aperture is 8mm, and the hole center distance is 20 mm.
In conclusion, the sound absorption plate and the porous glass wool are adopted on the inner side of the enclosure wall body, so that the enclosure wall body has better sound absorption performance; the outer side of the wall body adopts a type of fireproof plate and rock wool, so that the fireproof performance is better, and the requirement of one-hour fireproof limit can be met; the sound absorption plate and the fireproof plate are both made of brittle materials, and the pressure relief test shows that the sound absorption plate and the fireproof plate have good explosion relief function.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (6)
1. The utility model provides a collect fire prevention, sound absorption, pressure release function in enclosure wall body for transformer substation of an organic whole which characterized in that: the fireproof keel comprises a main keel, a perforated sound absorption plate and a fireproof plate I which are respectively arranged on the front side and the rear side of the main keel, and two fireproof plates II which are symmetrically arranged on the left side and the right side of the main keel; and sound absorption glass wool is arranged between the perforated sound absorption plate and the second fireproof plate, and fireproof rock wool is arranged between the first fireproof plate and the second fireproof plate.
2. The enclosure wall for the transformer substation, which integrates the functions of fire prevention, sound absorption and pressure relief, of claim 1, is characterized in that: the sound absorption glass wool comprises two parts positioned on the left side and the right side of the main keel, and the inner ends of the two parts of sound absorption glass wool are respectively connected to the main keel through a cold-bending channel steel keel; the cold-bending channel steel keel is connected with the main keel through a self-tapping screw; the sound absorption glass wool has the thickness of 50mm and the volume weight of 32kg/m3。
3. The enclosure wall for the transformer substation, which integrates the functions of fire prevention, sound absorption and pressure relief, of claim 1, is characterized in that: the fireproof rock wool comprises two parts which are positioned on the left side and the right side of the main keel, the inner ends of the two parts of fireproof rock wool are respectively connected with the main keel through a C-shaped light steel keel, and the C-shaped light steel keel is connected with the main keel through a self-tapping screw; the thickness of the fireproof rock wool is 100mm, and the volume weight is 100kg/m3。
4. The enclosure wall for the transformer substation, which integrates the functions of fire prevention, sound absorption and pressure relief, of claim 1, is characterized in that: the perforated sound absorption plate is connected with the main keel through an I-shaped aluminum alloy clamping piece, and the I-shaped aluminum alloy clamping piece is connected with the main keel through a self-tapping screw; the perforated sound absorption plate is an inorganic ceramic magnesium plate, the thickness of the perforated sound absorption plate is 9mm, the perforation aperture is 8mm, the hole center distance is 20mm, and the perforation rate is 10.4%.
5. The enclosure wall for the transformer substation, which integrates the functions of fire prevention, sound absorption and pressure relief, of claim 1, is characterized in that: the first fireproof plate is connected with the main keel through omega-shaped metal clamping pieces, and the omega-shaped metal clamping pieces are connected with the main keel through self-tapping screws.
6. The enclosure wall for the transformer substation, which integrates the functions of fire prevention, sound absorption and pressure relief, of claim 1, is characterized in that: and the first fireproof plate and the second fireproof plate are both made of asbestos-free silicate plates.
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Application publication date: 20211221 |