CN210713328U - Firewall plugging structure of transformer substation - Google Patents
Firewall plugging structure of transformer substation Download PDFInfo
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- CN210713328U CN210713328U CN201920760714.0U CN201920760714U CN210713328U CN 210713328 U CN210713328 U CN 210713328U CN 201920760714 U CN201920760714 U CN 201920760714U CN 210713328 U CN210713328 U CN 210713328U
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- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims abstract description 49
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- 210000002105 tongue Anatomy 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 6
- 239000004945 silicone rubber Substances 0.000 claims description 3
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Abstract
The utility model discloses a hot wall block structure is prevented to transformer substation solves the equal unsatisfactory problem of effect, fire prevention and explosion-proof effect and sealing performance of preventing hot wall block structure is kept apart to the electromagnetism of prior art converter station valve room. The utility model discloses set up the wall-through entrance to a cave of installing the block structure at the power station valve room firewall, the block structure includes big block structure and little block structure; the large plugging structure comprises a frame body, a fireproof wall body and a small plugging structure mounting hole, and the small plugging structure comprises a steel frame body, a fireproof explosion-proof plate, a converter transformer sleeve mounting hole and an aluminum silicate needle-punched blanket layer. The utility model discloses it is strong that hot wall block structure fire prevention explosion-proof ability is prevented in the current conversion station valve room, and the electromagnetism is kept apart the effect good, and the sealing performance of each junction is good, and the fire prevention explosion-proof ability of installation power station valve room current conversion transformer sheathed tube fire prevention explosion-proof board is strong, and the electromagnetism is kept apart effectually, and the fire prevention explosion-proof board with prevent being connected firmly between the wall firm, the joint gap department sealing performance is good.
Description
Technical Field
The utility model relates to a hot wall block structure is prevented to transformer substation.
Background
The power station valve hall is a closed building for placing the converter valve and requires excellent electromagnetic shielding performance. The electromagnetic interference that shielding current conversion produced, no magnetism stainless steel sheet has all been laid on the wall floor, and current conversion transformer bushing design needs to wear the wall installation, consequently need set up the wall hole on the wall in power station valve room, sets up the wall hole and need seal the wall hole after installing current conversion transformer bushing, and prior art is when carrying out the wall hole and seals, and its seal efficiency is low, and the shutoff department electromagnetism isolation effect, the fire prevention and explosion prevention effect after sealing and sealing performance are all unsatisfactory.
Therefore, a firewall plugging structure of a transformer substation is designed to improve the fireproof and explosion-proof performance, the electromagnetic isolation effect and the sealing performance of the joint, and the technical problem to be solved by technical personnel in the technical field is urgently solved.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the utility model provides a hot wall block structure is prevented to transformer substation, solves the problem that the electromagnetism of the hot wall block structure is prevented apart effect, fire prevention explosion-proof effect and sealing performance all are unsatisfactory in the current conversion station valve room.
In order to achieve the above object, the utility model adopts the following technical scheme:
a square through-wall hole is formed in a firewall of a valve hall of a power station, the blocking structure is installed in the through-wall hole, and the blocking structure comprises a large blocking structure and a small blocking structure which is arranged in the large blocking structure and used for installing a converter transformer sleeve;
the large plugging structure comprises a frame body which is formed by welding austenite S304 non-magnetic stainless steel square steel pipes and is arranged in the through-wall opening, and a fireproof wall body which is arranged in the frame body and formed by splicing a plurality of ALC boards in parallel through grooves and tongues, wherein the frame body is in a cross shape, four square mounting cavities are formed between the frame body and the wall of the through-wall opening, the fireproof wall body is arranged in each mounting cavity, and the frame body is connected with the wall of the through-wall opening through expansion bolts or chemical bolts;
small plugging structure mounting holes for mounting the small plugging structures are formed in the two fireproof walls which are distributed side by side respectively, one small plugging structure is mounted in each small plugging structure mounting hole, and each small plugging structure comprises a steel frame body which is formed by welding austenite S304 non-magnetic stainless steel square steel tubes, is mounted in the small plugging structure mounting holes and is in a square shape, and a fireproof and explosion-proof plate which is mounted in the steel frame body and is in a square shape;
the center of the fireproof explosion-proof plate is provided with a converter transformer sleeve mounting hole matched with the converter transformer sleeve, the converter transformer sleeve mounting holes are distributed in an inclined mode, the inclination of the converter transformer sleeve mounting holes is consistent with that of the converter transformer sleeve, the converter transformer sleeve is mounted in the converter transformer sleeve mounting hole, and an aluminum silicate needled blanket layer formed by an aluminum silicate needled blanket is filled between the hole wall of the converter transformer sleeve mounting hole and the outer tube wall of the converter transformer sleeve.
Furthermore, the length of the ALC boards forming the fireproof wall body is 3200mm, the width of the ALC boards forming the fireproof wall body is 600mm, the thickness of the ALC boards forming the fireproof wall body is 200mm, two adjacent ALC boards forming the fireproof wall body in the same square-shaped mounting cavity are spliced through grooves and tongues, all the ALC boards forming the fireproof wall body in the same square-shaped mounting cavity are sequentially spliced into the fireproof wall body through grooves and tongues, and one fireproof wall body is mounted in each square-shaped mounting cavity;
a plurality of Z-shaped nonmagnetic stainless steel fixed pressing plates are fixed on the fireproof wall body through M12 bolts, a clamping groove is formed between each nonmagnetic stainless steel fixed pressing plate and the fireproof wall body, all the nonmagnetic stainless steel fixed pressing plates are distributed around the small blocking structure mounting hole for a circle, more than two first equilateral angle steels of L100x10 are welded on the outer ring surface of the steel frame body at equal intervals, all the first equilateral angle steels are distributed around the outer ring surface of the steel frame body for a circle, the number of the first equilateral angle steels is the same as that of the clamping grooves and corresponds to that of the clamping grooves one by one, all the clamping grooves are positioned on the inner side of a valve hall of the power station, and the first equilateral angle steels are clamped in the corresponding clamping grooves and fastened through the M12 bolts;
the center of the fireproof and explosion-proof plate is provided with a converter transformer sleeve mounting hole for mounting a converter transformer sleeve, the fireproof and explosion-proof plate comprises a first metal surface structure rock wool composite plate, a second metal surface structure rock wool composite plate and a non-magnetic-conductive stainless steel impact-resistant plate which are sequentially stacked from the inner side of a valve hall to the converter transformer side, the converter transformer sleeve mounting hole sequentially penetrates through the first metal surface structure rock wool composite plate, the second metal surface structure rock wool composite plate and the non-magnetic-conductive stainless steel impact-resistant plate, and the aluminum silicate needle punched blanket layer is positioned between the hole wall of the converter transformer sleeve mounting hole part formed by the first metal surface structure rock wool composite plate and the second metal surface structure rock wool composite plate and the outer wall of the converter transformer sleeve;
more than two second equilateral angle steels of L50x6 are welded on the inner ring surface of the steel frame body at equal intervals, all the second equilateral angle steels are distributed around the ring surface in the steel frame body by a circle, and the first metal surface structure rock wool composite plate is fixed with each second equilateral angle steel by bolts; more than two third equilateral angle steels of L100x10 are welded on the inner ring surface of the steel frame body at equal intervals, all the third equilateral angle steels are distributed around the ring surface in the steel frame body by a circle, and the second metal surface structure rock wool composite plate is fixed with each third equilateral angle steel by bolts; the steel frame body is welded with a circle of clamping plates made of austenite type S304 non-magnetic stainless steel at equal intervals on the side face located on the converter transformer side, a non-magnetic-conductive stainless steel impact-resistant plate clamping groove is formed between each third equilateral angle steel and the clamping plates, the periphery of the non-magnetic-conductive stainless steel impact-resistant plate is respectively fastened and clamped in all the non-magnetic-conductive stainless steel impact-resistant plate clamping grooves, and the second equilateral angle steel, the third equilateral angle steel and the non-magnetic-conductive stainless steel impact-resistant plate clamping grooves are sequentially distributed in parallel from the inner side of a valve hall to the converter transformer side.
Furthermore, a gap is reserved between the outer pipe wall of the converter transformer bushing and the hole wall of the converter transformer bushing mounting hole part formed in the non-magnetic stainless steel impact-resistant plate;
a first ceramic silicon rubber sealing sleeve formed by ceramic silicon rubber is arranged between the outer tube wall of the converter transformer bushing and the outer surface of the first metal surface structure rock wool composite plate, a first stainless steel hoop is arranged on the first ceramic silicon rubber sealing sleeve, the first ceramic silicon rubber sealing sleeve is fixed with the outer tube wall of the converter transformer bushing through the first stainless steel hoop, and the first ceramic silicon rubber sealing sleeve is fixed on the outer surface of the first metal surface structure rock wool composite plate through a bolt;
a second ceramic silicon rubber sealing sleeve formed by ceramic silicon rubber is arranged between the outer tube wall of the current conversion transformer sleeve and the outer surface of the second metal surface structure rock wool composite plate, a second stainless steel hoop is arranged on the second ceramic silicon rubber sealing sleeve, the second ceramic silicon rubber sealing sleeve is fixed with the outer tube wall of the current conversion transformer sleeve through the second stainless steel hoop, the second ceramic silicon rubber sealing sleeve is fixed on the outer surface of the second metal surface structure rock wool composite plate through bolts, and the second ceramic silicon rubber sealing sleeve fixed on the second metal surface structure rock wool composite plate is partially positioned between the second metal surface structure rock wool composite plate and the non-magnetic-conductive stainless steel impact-resistant plate.
Further, a first fireproof protection layer is arranged at one end of the outer wall of the first metal surface structure rock wool composite board and the non-magnetic-conductive stainless steel impact-resistant board, a first color steel plate made of an austenite S304 non-magnetic stainless steel plate with the thickness of 1mm is coated at a joint of the first fireproof protection layer and the non-magnetic-conductive stainless steel impact-resistant board on the converter transformer side, the first color steel plate is respectively fixed with the first fireproof protection layer and the non-magnetic-conductive stainless steel impact-resistant board through bolts, a filling structure is arranged between the first fireproof protection layer and the fireproof wall body on the converter transformer side, and a fireproof mortar layer is filled on the outer surface of the filling structure; a2 mm-thick leveling flexible waterproof putty layer is coated on one side surface of the fireproof wall body on the side of the converter transformer in a scraping mode, and an 8 mm-thick air-entrapping leveling mortar layer is coated on the outer surface of the flexible waterproof putty layer in a scraping mode.
Furthermore, the length, the width and the thickness of the first metal surface structure rock wool composite plate are 3100mm multiplied by 3000mm multiplied by 50mm respectively, the length, the width and the thickness of the second metal surface structure rock wool composite plate are 3100mm multiplied by 3000mm multiplied by 150mm respectively, and the length, the width and the thickness of the non-magnetic stainless steel impact-resistant plate are 3100mm multiplied by 3000mm multiplied by 70mm respectively;
the first metal surface structure rock wool composite board is formed by splicing three metal surface structure rock wool composite boards with the specifications of 1200mm multiplied by 3000mm multiplied by 50mm, 1200mm multiplied by 3000mm multiplied by 50mm and 700mm multiplied by 3000mm multiplied by 50mm in parallel through a rabbet, and all splicing gaps are provided with fireproof heat-preservation mortar structures in a pointing way; the second metal surface structure rock wool composite board is formed by splicing three metal surface structure rock wool composite boards with the specifications of 1200mm multiplied by 3000mm multiplied by 150mm, 1200mm multiplied by 3000mm multiplied by 150mm and 700mm multiplied by 3000mm multiplied by 150mm in parallel through a rabbet, and all splicing gaps are provided with fireproof heat-preservation mortar structures in a pointing way; the metal surface structure rock wool composite sheet includes rock wool composite sheet and inseparable cladding be in non-magnetic conduction 304 stainless steel surface course on the rock wool composite sheet surface, the thickness of non-magnetic conduction 304 stainless steel surface course is 0.6 mm.
Further, first metal covering structure rock wool composite sheet with between the second metal covering structure rock wool composite sheet and the second metal covering structure rock wool composite sheet with it all leaves the clearance to not lead between the magnetic stainless steel board of shocking resistance, and first metal covering structure rock wool composite sheet with clearance between the second metal covering structure rock wool composite sheet is 10mm, second metal covering structure rock wool composite sheet with it is 20mm to lead the clearance between the magnetic stainless steel board of shocking resistance.
Furthermore, a circle of first nonmagnetic stainless steel fixing pressing plates in a Z shape is fixed on the periphery of the fireproof wall body in the circumferential direction through M12 bolts, a first clamping groove is formed between the first nonmagnetic stainless steel fixing pressing plates and the fireproof wall body, a circle of L50x6 fourth equal-edge angle steel is fixed on the wall of the through-wall opening in the circumferential equal distance mode through expansion bolts or chemical bolts, more than two fifth equal-edge angle steel of L100x10 are welded on each side wall of the frame body in the circumferential equal distance mode respectively, the first clamping groove distributed on the wall side of the through-wall opening on the fireproof wall body is used for clamping the fourth equal-edge angle steel, the same first clamping groove distributed on the side of the frame body on the fireproof wall body is used for clamping the fifth equal-edge angle steel, the fireproof wall body is clamped with the fourth equal-edge angle steel and fixed with the wall of the through-wall opening through the first clamping groove, and the fireproof wall body is clamped with the fifth equal-edge angle steel through the first clamping groove and is fixed with the frame body.
Furthermore, two sides of the connection part of the fireproof wall body and the wall of the through-wall hole are respectively coated with a first aluminum silicate needle-punched blanket layer formed by an aluminum silicate needle-punched blanket, the outer surface of the first aluminum silicate needle-punched blanket layer is coated with a second color steel plate made of an austenite S304 nonmagnetic stainless steel plate with the thickness of 1mm, and the second color steel plate is respectively fixed with the fireproof wall body and the firewall of the valve hall of the power station through bolts; gaps formed among the first aluminum silicate needled blanket layer, the second color steel plate, the fireproof wall body and the wall of the through-wall opening are filled with fireproof coating mortar.
Furthermore, a first fireproof protection layer composed of ALC plates with the thickness of 50mm is fixed on the front surface and the back surface of the steel frame body through bolts respectively, a filling structure formed by aluminum silicate needle-punched blankets is filled in a gap where the fireproof wall body, the first fireproof protection layer and the steel frame body are connected, and the filling structure is used for densely filling the gap where the fireproof wall body, the first fireproof protection layer and the steel frame body are connected; and the front surface and the back surface of the frame body are respectively fixed with a second fireproof protection layer consisting of ALC plates with the thickness of 50mm through bolts, and the joints of the fireproof wall body and the frame body and the second fireproof protection layer are respectively coated with a second aluminum silicate needled blanket layer formed by aluminum silicate needled blankets.
Furthermore, the fireproof wall body is coated with a 304 stainless steel shielding layer with the thickness of 0.6mm on the outer surface of the inner side of the valve hall, the outer surface of the first fireproof protection layer which is coated on the steel frame body and is positioned on the inner side of the valve hall, and the outer surface of the second fireproof protection layer which is coated on the frame body and is positioned on the inner side of the valve hall; the fireproof wall body is uniformly provided with a plurality of C80X 40X 20X 2.5 purlins on the outer surface of the fireproof wall body positioned on the inner side of the valve hall, and the 304 stainless steel shielding layer is fixedly connected with all the purlins through bolts;
all the first equilateral angle steels, all the second equilateral angle steels, all the third equilateral angle steels, all the fourth equilateral angle steels, all the fifth equilateral angle steels, all the M12 bolts, all the expansion bolts or chemical bolts, all the purlins, and all the bolts are made of austenite S304 nonmagnetic stainless steel, all the nonmagnetic stainless steel fixing pressing plates and the first nonmagnetic stainless steel fixing pressing plates are made of austenite S304 nonmagnetic stainless steel plates with the thickness of 5mm, all the reinforcing steel bars in the ALC plates are HRB400S hot-rolled thread austenite S304 nonmagnetic stainless steel bars, the first stainless steel clamps and the second stainless steel clamps are made of austenite S304 nonmagnetic stainless steel, and the bolts for fixing the first ceramic silicon rubber sealing sleeve or the second ceramic silicon rubber sealing sleeve are provided with-20 multiplied by 4 aluminum alloy pressing rings in a penetrating mode, the-20 multiplied by 4 aluminum alloy pressure ring is positioned between the head of the bolt and the first ceramic silicon rubber sealing sleeve or the second ceramic silicon rubber sealing sleeve.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model has the advantages of simple structure and scientific and reasonable design, convenient to use, the hot wall block structure fire prevention explosion-proof ability of preventing of convertor station valve room is strong, and the electromagnetism is kept apart the effect well, and the sealing performance of each junction is good, and the fire prevention explosion-proof ability of installation power station valve room convertor station conversion transformer substation sheathed tube fire prevention explosion-proof board is strong, and the electromagnetism is kept apart effectually, and the fire prevention explosion-proof board with prevent to be connected between the wall firm, the joint gap department sealing performance is good.
The utility model discloses set up the wall entrance to a cave squarely, the crisscross frame body of installation in this square entrance to a cave, the frame body adopts austenite type S304 non-magnetic stainless steel square steel pipe welding to form, the frame body separates into four square entrance to a cave shape installation cavity, install the ALC board that length is 3200mm, width is 600mm, thickness is 200mm in the square installation cavity side by side, adopt tongue-and-groove to peg graft into a fire wall between the ALC board in the same square installation cavity, the concatenation efficiency of fire wall is high, adopt angle steel and non-magnetic stainless steel stationary platen fixed connection between fire wall and entrance to a cave wall and the frame lateral wall, fixed through M12 bolt fastening and formed with the joint groove between non-magnetic stainless steel stationary platen and the ALC board, the equilateral angle steel fixed on the entrance to a cave wall and fixed on the frame lateral wall is blocked with the joint groove mutually respectively, and fasten through M12 bolt, the fire wall can be rapidly installed in the square installation cavity, and the installation is very stable and firm, the fire resistance of the ALC board is good, and the fire-proof effect is ideal.
The utility model discloses be equipped with one deck aluminium silicate acupuncture blanket layer respectively with entrance to a cave wall and frame body wall junction at fire wall, aluminium silicate acupuncture blanket layer all adopts aluminium silicate acupuncture blanket material to make, and simultaneously, adopt the fire prevention coating mortar to carry out the joint in the gap department of installation, scrape on the fire wall body the thick flexible water-fast putty layer of making level of 2mm of coating one deck, scrape at the surface of this flexible water-fast putty layer and scribble the thick air entrainment mortar layer of making level of one deck 8mm, in order to fill the gap between the ALC board in the fire wall body and make level, so can guarantee the fire behavior and the sealing performance of each junction, further improve the fire behavior of block structure, the positive and negative two sides of frame body all are fixed with the thick ALC board of one deck 50mm, can effectively guarantee the fire behavior of frame body.
The utility model discloses adopt various steel sheet respectively to bordure in fireproof wall body and entrance to a cave wall and frame body wall junction, can effectively beautify the outward appearance of junction.
The utility model is arranged in a steel frame body and consists of a first metal surface structure rock wool composite board, a second metal surface structure rock wool composite board and a non-magnetic-conductive stainless steel shock-resistant board which are distributed side by side, wherein the first metal surface structure rock wool composite board and the second metal surface structure rock wool composite board are formed by connecting a plurality of metal surface structure rock wool composite boards side by side through rabbets, the connection efficiency is high, a seam part is sewn with a fireproof heat-preservation mortar structure, the sealing performance and the fireproof performance can be ensured simultaneously, the metal surface structure rock wool composite board comprises a rock wool composite board and a non-magnetic-conductive 304 stainless steel surface layer which is coated on the outer surface of the rock wool composite board, the thickness of the first metal surface structure rock wool composite board is 50mm, the thickness of the second metal surface structure rock wool composite board is 150mm, and a gap with a spacing of 10mm is arranged between the first metal surface structure rock wool composite board and the second metal surface, so can make the utility model discloses a fire prevention explosion-proof board has very good fire behavior, simultaneously, does not lead the magnetic stainless steel shock resistance plate thickness to reach 70mm, and it is located the current transformation incline, and interval 20 mm's space between its and the second metal covering structure rock wool composite sheet, so not only the electromagnetism is kept apart effectually, still makes the utility model discloses very good explosion-proof nature has.
The utility model discloses through first equilateral angle steel, no magnetism stainless steel fixed pressing plate, M12 bolted connection between fireproof wall and the steel framework, form the joint groove between no magnetism stainless steel fixed pressing plate and the fireproof wall, first equilateral angle steel welding is on fireproof wall, and the joint is in the joint groove, locks first equilateral angle steel in the joint groove through M12 bolt, can make and form firm connection between fireproof wall and the steel framework; similarly, the first metal surface structure rock wool composite board is fixedly connected with a second equilateral angle steel fixed on the steel frame body through a bolt, and the second metal surface structure rock wool composite board is fixedly connected with a third equilateral angle steel fixed on the steel frame body through a bolt; and a non-magnetic-conductive stainless steel impact-resistant board clamping groove is formed between the clamping plate fixed on the steel frame body and the third equilateral angle steel, and the non-magnetic-conductive stainless steel impact-resistant board is clamped in all the non-magnetic-conductive stainless steel impact-resistant board clamping grooves to be fixed with the steel frame body, so that the fireproof wall body is firmly and firmly connected with the fireproof explosion-proof board through the steel frame body.
The utility model discloses fire wall is formed by the ALC board of 200mm thick adopting the tongue-and-groove to peg graft side by side, fire wall's concatenation efficiency is high, fire behavior is strong, fire wall, the steel frame body, and the seam crossing between the 50mm thick ALC board is closely packed has the filling structure who forms by aluminium silicate needle felt, the filling structure between the 50mm thick ALC board of converter transformer side and the fire wall exposes the part and is filled up and has a layer fire prevention mortar layer, seal the various steel sheet of one deck between the 50mm thick ALC board of converter side and the non-magnetic conduction stainless steel shock-resistant plate, fire wall is by length 3200mm, width 600mm, ALC board of thickness 200mm pegs graft side by side through the tongue-and-groove and forms, fire wall scrapes the flexible putty layer of 2mm thick levelling simultaneously, flexible water-fast putty layer surface scrapes and scribbles the air entrainment of 8mm thick levelling mortar layer, so can make fire wall, the steel frame body, and form sealing connection structure between the fire prevention and the fire, the sealing performance of the power station valve hall is guaranteed, the fireproof performance and the sealing performance are improved, the fireproof effect is further improved, and the ALC plates with the thickness of 50mm are fixed on the front surface and the back surface of the frame body, so that the fireproof performance of the frame body can be effectively guaranteed.
The utility model discloses set up the change of current transformer sleeve pipe mounting hole that is used for installing change of current transformer sleeve pipe on fire prevention explosion-proof board, change of current transformer sleeve pipe mounting hole slope distributes, its gradient is unanimous with change of current transformer sleeve pipe gradient, establish aluminium silicate acupuncture blanket layer between change of current transformer sleeve pipe's pipe wall and the pore wall of change of current transformer sleeve pipe mounting hole, aluminium silicate acupuncture blanket layer can play the sealed effect of heat preservation fire prevention, and simultaneously, change of current transformer sleeve pipe respectively with first metal covering structure rock wool composite sheet and second metal covering structure rock wool composite sheet between establish first pottery silicon rubber sealing sleeve and second pottery silicon rubber sealing sleeve, first pottery silicon rubber sealing sleeve and second pottery silicon rubber sealing sleeve carry out the cladding with the part that change of current transformer sleeve pipe is located fire prevention explosion-proof board both sides respectively, and fix through first stainless steel clamp and second stainless steel clamp fastening respectively, first pottery silicon rubber sealing sleeve and second pottery silicon rubber sealing sleeve pass through the bolt respectively with first gold The metal surface structure rock wool composite board and the second metal surface structure rock wool composite board are fixed, and the sealing performance between the converter transformer bushing and the wall of the mounting hole of the converter transformer bushing can be further improved.
The utility model discloses be fixed with one deck 304 stainless steel shielding layer on the fire wall body is located the inboard surface of valve hall with steel support body and frame body respectively, and all first equilateral angle steel, second equilateral angle steel, third equilateral angle steel, fourth equilateral angle steel, fifth equilateral angle steel, first stainless steel clamp, second stainless steel clamp, the joint board, various steel sheet, M12 bolt, the purlin, and the bolt all adopts austenite type S304 to do not have the magnetism stainless steel and make, all do not have the fixed clamp plate of magnetism stainless steel and all adopt the thick austenite type S304 of 5mm to do not have magnetism stainless steel board and make, frame body and steel body all adopt austenite type S304 to do not have magnetism stainless steel square steel pipe welding and form, all ALC inboard reinforcing bars are HRB400S hot rolling screw thread austenite type S304 and do not have magnetism stainless steel bar, can further prevent that electromagnetic eddy current from producing, improve the electromagnetic isolation effect.
The utility model discloses leave the clearance between the pore wall of the change of current transformer bushing portion that the outer pipe wall of change of current transformer bushing and non-magnetic conduction stainless steel shock-resistant plate was seted up, can prevent effectively that non-magnetic conduction stainless steel shock-resistant plate from incising second pottery porcelain silicon rubber seal sleeve, can effectively protect flexible second pottery porcelain silicon rubber seal sleeve, and simultaneously, establish-20 x 4 aluminum alloy clamping ring between the head of bolt and first pottery porcelain silicon rubber seal sleeve or the second pottery porcelain silicon rubber seal sleeve, can further protect flexible first pottery porcelain silicon rubber seal sleeve or the second pottery porcelain silicon rubber seal sleeve.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the schematic view of the junction between the fireproof wall body and the wall of the through-wall opening.
Fig. 3 is a schematic view of the junction between the fireproof wall and the frame body of the present invention.
FIG. 4 is a schematic view of the connection of the fireproof wall, the steel frame and the fireproof and explosion-proof plate.
Fig. 5 is an enlarged view of a portion a of fig. 4.
Fig. 6 is an enlarged view of a portion B of fig. 4.
Fig. 7 is a diagram of the ALC board tongue-and-groove splicing of the present invention.
Fig. 8 is a view of the splicing of the rabbet of the rock wool composite board with a metal surface structure of the utility model.
Fig. 9 is the utility model discloses metal covering structure rock wool composite sheet structure sketch map.
Fig. 10 is a schematic view of the converter transformer bushing installed on the fireproof and explosion-proof plate of the present invention.
Wherein, the names corresponding to the reference numbers are:
1-frame body, 2-fireproof wall body, 3-steel frame body, 4-fireproof explosion-proof plate, 5-converter transformer bushing mounting hole, 6-aluminum silicate needle punched blanket layer, 7-M12 bolt, 8-nonmagnetic stainless steel fixing pressure plate, 9-clamping groove, 10-first equilateral angle steel, 11-second equilateral angle steel, 12-third equilateral angle steel, 13-clamping plate, 14-nonmagnetic stainless steel impact-resistant clamping groove, 15-first ceramic silicon rubber sealing sleeve, 16-first stainless steel clamp, 17-second ceramic silicon rubber sealing sleeve, 18-second stainless steel clamp, 19-first fireproof protective layer, 20-filling structure, 21-304 stainless steel shielding layer, 22-purlin, 23-first color steel plate, 24-fireproof mortar layer, 25-rock wool composite board, 26-non-magnetic conductive 304 stainless steel surface layer, 27-20 x 4 aluminum alloy pressure ring, 28-fourth equal angle steel, 29-fifth equal angle steel, 30-first non-magnetic stainless steel fixed pressure plate, 31-first clamping groove, 32-first aluminum silicate needle felt layer, 33-second color steel plate, 34-second fireproof protective layer, 35-second aluminum silicate needle felt layer, 36-power station valve hall firewall, 37-converter transformer sleeve, 41-first metal surface structure rock wool composite board, 42-second metal surface structure rock wool composite board and 43-non-magnetic conductive stainless steel impact resistant board.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in fig. 1-10, the utility model provides a pair of hot wall block structure is prevented to transformer substation, simple structure, design scientific and reasonable, convenient to use, the hot wall block structure is prevented to the current conversion station valve room fire prevention explosion-proof ability reinforce, the electromagnetism is kept apart the effect good, the sealing performance of each junction is good, the installation power station valve room current conversion transformer substation sheathed tube fire prevention explosion-proof ability reinforce, the electromagnetism is kept apart effectually, the fire prevention explosion-proof board with prevent being connected between the wall firm, the joint gap department sealing performance is good. The utility model discloses set up the wall-through entrance to a cave that is square on power station valve room firewall 36, the block structure is installed in the wall-through entrance, the block structure includes big block structure and locates the little block structure that is used for installing the casing pipe 37 of converter transformer in the big block structure; the large plugging structure comprises a frame body 1 which is formed by welding austenite S304 non-magnetic stainless steel square steel pipes and is arranged in the wall-penetrating opening, and a fireproof wall body 2 which is arranged in the frame body 1 and formed by splicing a plurality of ALC plates side by side through grooves and tongues, wherein the frame body 1 is in a cross shape, four square mounting cavities are formed between the frame body 1 and the wall of the wall-penetrating opening, the fireproof wall body 2 is arranged in each mounting cavity, and the frame body 1 is connected with the wall of the wall-penetrating opening through expansion bolts or chemical bolts.
The utility model discloses two said fire wall bodies 2 that distribute side by side are equipped with the small block structure mounting hole that is used for installing said small block structure respectively, and all install one said small block structure in each said small block structure mounting hole, said small block structure include adopt austenite type S304 nonmagnetic stainless steel square steel tube weld form and install in said small block structure mounting hole and take the form of a square steel frame 3, and install in said steel frame 3 and take the form of square fire-proof explosion-proof board 4; the center of the fireproof explosion-proof plate 4 is provided with a converter transformer sleeve mounting hole 5 matched with the converter transformer sleeve, the converter transformer sleeve mounting holes 5 are distributed in an inclined mode, the inclination of the converter transformer sleeve mounting holes 5 is consistent with that of the converter transformer sleeve, the converter transformer sleeve is mounted in the converter transformer sleeve mounting hole 5, and an aluminum silicate needled blanket layer 6 formed by an aluminum silicate needled blanket is filled between the hole wall of the converter transformer sleeve mounting hole 5 and the outer tube wall of the converter transformer sleeve.
The length of the ALC board composing the fireproof wall body 2 of the utility model is 3200mm, the width is 600mm, the thickness is 200mm, two adjacent blocks in the same square-shaped installation cavity compose the ALC board of the fireproof wall body 2 through the rabbet splicing, and all the ALC boards composing the fireproof wall body 2 in the same square-shaped installation cavity are spliced into the fireproof wall body 2 through the rabbet sequence, and one fireproof wall body 2 is installed in each square-shaped installation cavity; a plurality of Z-shaped nonmagnetic stainless steel fixed pressing plates 8 are fixed on the fireproof wall body 2 through M12 bolts 7, a clamping groove 9 is formed between each nonmagnetic stainless steel fixed pressing plate 8 and the fireproof wall body 2, all the nonmagnetic stainless steel fixed pressing plates 8 are distributed around the small plugging structure mounting hole in a circle, more than two first equilateral angle steels 10 of L100x10 are welded on the outer ring surface of the steel frame body 3 at equal intervals, all the first equilateral angle steels 10 are distributed around the outer ring surface of the steel frame body 3 in a circle, the number of the first equilateral angle steels 10 is the same as that of the clamping grooves 9 and corresponds to one another, all the clamping grooves 9 are located on the inner side of a valve hall of the valve hall of a power station, and the first equilateral angle steels 10 are clamped in the corresponding clamping grooves 9 and fastened through the M12 bolts 7.
The utility model discloses set up the wall entrance to a cave squarely, the crisscross frame body of installation in this square entrance to a cave, the frame body adopts austenite type S304 non-magnetic stainless steel square steel pipe welding to form, the frame body separates into four square entrance to a cave shape installation cavity, install the ALC board that length is 3200mm, width is 600mm, thickness is 200mm in the square installation cavity side by side, adopt tongue-and-groove to peg graft into a fire wall between the ALC board in the same square installation cavity, the concatenation efficiency of fire wall is high, adopt angle steel and non-magnetic stainless steel stationary platen fixed connection between fire wall and entrance to a cave wall and the frame lateral wall, fixed through M12 bolt fastening and formed with the joint groove between non-magnetic stainless steel stationary platen and the ALC board, the equilateral angle steel fixed on the entrance to a cave wall and fixed on the frame lateral wall is blocked with the joint groove mutually respectively, and fasten through M12 bolt, the fire wall can be rapidly installed in the square installation cavity, and the installation is very stable and firm, the fire resistance of the ALC board is good, and the fire-proof effect is ideal.
The utility model discloses be equipped with one deck aluminium silicate acupuncture blanket layer respectively with entrance to a cave wall and frame body wall junction at fire wall, aluminium silicate acupuncture blanket layer all adopts aluminium silicate acupuncture blanket material to make, and simultaneously, adopt the fire prevention coating mortar to carry out the joint in the gap department of installation, scrape on the fire wall body the thick flexible water-fast putty layer of making level of 2mm of coating one deck, scrape at the surface of this flexible water-fast putty layer and scribble the thick air entrainment mortar layer of making level of one deck 8mm, in order to fill the gap between the ALC board in the fire wall body and make level, so can guarantee the fire behavior and the sealing performance of each junction, further improve the fire behavior of block structure, the positive and negative two sides of frame body all are fixed with the thick ALC board of one deck 50mm, can effectively guarantee the fire behavior of frame body.
Fireproof explosion-proof board 4's central authorities offer and are used for installing the sheathed tube change of current transformer bushing mounting hole 5, fireproof explosion-proof board 4 includes from the valve room inboard to change of current transformer side range upon range of the first metal face structure rock wool composite panel 41, second metal face structure rock wool composite panel 42 that sets up in proper order and non-magnetic stainless steel shock-resistant board 43, change of current transformer bushing mounting hole 5 runs through in proper order first metal face structure rock wool composite panel 41 second metal face structure rock wool composite panel 42 and non-magnetic stainless steel shock-resistant board 43, aluminium silicate acupuncture blanket layer 6 is located the pore wall of change of current bushing mounting hole portion is seted up to first metal face structure rock wool composite panel 41 and second metal face structure rock wool composite panel 42 with between the sheathed tube outer wall of change of current transformer.
In the utility model, two or more second equilateral angle steels 11 of L50x6 are equidistantly welded on the inner annular surface of the steel frame body 3, all the second equilateral angle steels 11 are distributed around the inner annular surface of the steel frame body 3 for a circle, and the first metal surface structure rock wool composite plate 41 is fixed with each second equilateral angle steel 11 through bolts; more than two third equilateral angle steels 12 of L100x10 are welded on the inner annular surface of the steel frame body 3 at equal intervals, all the third equilateral angle steels 12 are distributed around the inner annular surface of the steel frame body 3 for a circle, and the second metal surface structure rock wool composite plate 42 is fixed with each third equilateral angle steel 12 through bolts; a circle of clamping plates 13 made of austenite S304 non-magnetic stainless steel are welded on the side face of the steel frame body 3 on the side face of the converter transformer side at equal intervals, a non-magnetic-conductive stainless steel impact-resistant plate clamping groove 14 is formed between each third equilateral angle steel 12 and the clamping plate 13, the periphery of the non-magnetic-conductive stainless steel impact-resistant plate 43 is fixedly clamped in all the non-magnetic-conductive stainless steel impact-resistant plate clamping grooves 14 respectively, and the second equilateral angle steel 11, the third equilateral angle steel 12 and the non-magnetic-conductive stainless steel impact-resistant plate clamping grooves 14 are distributed side by side in sequence from the inner side of a valve hall to the converter transformer side.
The utility model is arranged in a steel frame body and consists of a first metal surface structure rock wool composite board, a second metal surface structure rock wool composite board and a non-magnetic-conductive stainless steel shock-resistant board which are distributed side by side, wherein the first metal surface structure rock wool composite board and the second metal surface structure rock wool composite board are formed by connecting a plurality of metal surface structure rock wool composite boards side by side through rabbets, the connection efficiency is high, a seam part is sewn with a fireproof heat-preservation mortar structure, the sealing performance and the fireproof performance can be ensured simultaneously, the metal surface structure rock wool composite board comprises a rock wool composite board and a non-magnetic-conductive 304 stainless steel surface layer which is coated on the outer surface of the rock wool composite board, the thickness of the first metal surface structure rock wool composite board is 50mm, the thickness of the second metal surface structure rock wool composite board is 150mm, and a gap with a spacing of 10mm is arranged between the first metal surface structure rock wool composite board and the second metal surface, so can make the utility model discloses a fire prevention explosion-proof board has very good fire behavior, simultaneously, does not lead the magnetic stainless steel shock resistance plate thickness to reach 70mm, and it is located the current transformation incline, and interval 20 mm's space between its and the second metal covering structure rock wool composite sheet, so not only the electromagnetism is kept apart effectually, still makes the utility model discloses very good explosion-proof nature has.
The utility model discloses through first equilateral angle steel, no magnetism stainless steel fixed pressing plate, M12 bolted connection between fireproof wall and the steel framework, form the joint groove between no magnetism stainless steel fixed pressing plate and the fireproof wall, first equilateral angle steel welding is on fireproof wall, and the joint is in the joint groove, locks first equilateral angle steel in the joint groove through M12 bolt, can make and form firm connection between fireproof wall and the steel framework; similarly, the first metal surface structure rock wool composite board is fixedly connected with a second equilateral angle steel fixed on the steel frame body through a bolt, and the second metal surface structure rock wool composite board is fixedly connected with a third equilateral angle steel fixed on the steel frame body through a bolt; and a non-magnetic-conductive stainless steel impact-resistant board clamping groove is formed between the clamping plate fixed on the steel frame body and the third equilateral angle steel, and the non-magnetic-conductive stainless steel impact-resistant board is clamped in all the non-magnetic-conductive stainless steel impact-resistant board clamping grooves to be fixed with the steel frame body, so that the fireproof wall body is firmly and firmly connected with the fireproof explosion-proof board through the steel frame body.
In the utility model, a gap is left between the outer pipe wall of the converter transformer bushing and the hole wall of the mounting hole part of the converter transformer bushing arranged on the non-magnetic stainless steel shock-resistant plate 43; a layer of first ceramic silicon rubber sealing sleeve 15 formed by ceramic silicon rubber is arranged between the outer tube wall of the converter transformer bushing and the outer surface of the first metal surface structure rock wool composite plate 41, a first stainless steel hoop 16 is arranged on the first ceramic silicon rubber sealing sleeve 15, the first ceramic silicon rubber sealing sleeve 15 is fixed with the outer tube wall of the converter transformer bushing through the first stainless steel hoop 16, and the first ceramic silicon rubber sealing sleeve 15 is fixed on the outer surface of the first metal surface structure rock wool composite plate 41 through bolts.
Change current and become sheathed tube outer pipe wall with be equipped with the one deck by the pottery porcelain silicon rubber sealing sleeve 17 of second that pottery porcelain silicon rubber formed between second metal face structure rock wool composite sheet 42's the surface, be equipped with second stainless steel clamp 18 on the pottery porcelain silicon rubber sealing sleeve 17 of second, and second pottery porcelain silicon rubber sealing sleeve 17 through second stainless steel clamp 18 with change current and become sheathed tube outer pipe wall fixed mutually, second pottery porcelain silicon rubber sealing sleeve 17 passes through the bolt fastening and is in on second metal face structure rock wool composite sheet 42's the surface, be fixed in second pottery porcelain silicon rubber sealing sleeve part on the second metal face structure rock wool composite sheet 42 is located second metal face structure rock wool composite sheet 42 with it does not lead between the magnetism stainless steel shock-resistant plate 43.
The utility model discloses the joint department that is located the first fire protection layer 19 of commutation side with non-magnetic stainless steel shock-resistant plate 43 coats and has the first various steel sheet 23 that the one deck was made by the thick austenite type S304 non-magnetic stainless steel board of 1mm, first various steel sheet 23 through the bolt respectively with first fire protection layer 19 with non-magnetic stainless steel shock-resistant plate 43 is fixed, the surface that is located between the first fire protection layer 19 of commutation side and fire wall 2 the filling structure 20 is filled up and is had a layer of fire prevention mortar layer 24; a2 mm-thick leveling flexible waterproof putty layer is coated on one side surface of the transformation flow side of the fireproof wall body 2 in a scraping mode, and an 8 mm-thick air-entrapping leveling mortar layer is coated on the outer surface of the flexible waterproof putty layer in a scraping mode.
The length, width and thickness of the first metal surface structure rock wool composite board 41 of the utility model are 3100mm × 3000mm × 50mm, the length, width and thickness of the second metal surface structure rock wool composite board 42 are 3100mm × 3000mm × 150mm, and the length, width and thickness of the non-magnetic stainless steel impact-resistant board 43 are 3100mm × 3000mm × 70 mm; the first metal surface structure rock wool composite board 41 is formed by splicing three metal surface structure rock wool composite boards with the specifications of 1200mm multiplied by 3000mm multiplied by 50mm, 1200mm multiplied by 3000mm multiplied by 50mm and 700mm multiplied by 3000mm multiplied by 50mm in parallel through a rabbet, and all splicing gaps are provided with fireproof heat-preservation mortar structures in a pointing way; the second metal surface structure rock wool composite board 42 is formed by splicing three metal surface structure rock wool composite boards with the specifications of 1200mm multiplied by 3000mm multiplied by 150mm, 1200mm multiplied by 3000mm multiplied by 150mm and 700mm multiplied by 3000mm multiplied by 150mm in parallel through a rabbet, and all splicing gaps are provided with fireproof heat-preservation mortar structures in a pointing way; the metal surface structure rock wool composite board includes rock wool composite board 25 and closely the cladding be in the non-magnetic conduction 304 stainless steel surface course 26 on rock wool composite board 25 surface, the thickness of non-magnetic conduction 304 stainless steel surface course 26 is 0.6 mm.
First metal covering structure rock wool composite sheet 41 with between the second metal covering structure rock wool composite sheet 42 and second metal covering structure rock wool composite sheet 42 with it all leaves the clearance to do not lead between the magnetic stainless steel shock resistance board 43, and first metal covering structure rock wool composite sheet 41 with clearance between the second metal covering structure rock wool composite sheet 42 is 10mm, second metal covering structure rock wool composite sheet 42 with it is 20mm to do not lead clearance between the magnetic stainless steel shock resistance board 43.
The utility model discloses set up the change of current transformer sleeve pipe mounting hole that is used for installing change of current transformer sleeve pipe on fire prevention explosion-proof board, change of current transformer sleeve pipe mounting hole slope distributes, its gradient is unanimous with change of current transformer sleeve pipe gradient, establish aluminium silicate acupuncture blanket layer between change of current transformer sleeve pipe's pipe wall and the pore wall of change of current transformer sleeve pipe mounting hole, aluminium silicate acupuncture blanket layer can play the sealed effect of heat preservation fire prevention, and simultaneously, change of current transformer sleeve pipe respectively with first metal covering structure rock wool composite sheet and second metal covering structure rock wool composite sheet between establish first pottery silicon rubber sealing sleeve and second pottery silicon rubber sealing sleeve, first pottery silicon rubber sealing sleeve and second pottery silicon rubber sealing sleeve carry out the cladding with the part that change of current transformer sleeve pipe is located fire prevention explosion-proof board both sides respectively, and fix through first stainless steel clamp and second stainless steel clamp fastening respectively, first pottery silicon rubber sealing sleeve and second pottery silicon rubber sealing sleeve pass through the bolt respectively with first gold The metal surface structure rock wool composite board and the second metal surface structure rock wool composite board are fixed, and the sealing performance between the converter transformer bushing and the wall of the mounting hole of the converter transformer bushing can be further improved.
In the utility model, a circle of first nonmagnetic stainless steel fixed pressing plate 30 which is Z-shaped is circumferentially fixed around the fireproof wall body 2 through M12 bolts 7, a circle of fourth equal-angle steel 28 of L50x6 is circumferentially and equidistantly fixed on the hole wall of the through-wall hole through expansion bolts or chemical bolts respectively, more than two fifth equal-angle steel 29 of L100x10 are respectively and equidistantly welded on each side wall of the frame body 1, the same first clamping groove 31 distributed on the fireproof wall body 2 at the through-wall hole wall side is used for clamping the fourth equal-angle steel 28, the same first clamping groove 31 distributed on the fireproof wall body 2 at the frame body side is used for clamping the fifth equal-angle steel 29, the fireproof wall body 2 is clamped with the first clamping groove 31, the fourth equal-angle steel 28 is fixed with the hole wall of the through-wall hole, the fireproof wall body 2 is connected with the fifth equal-edge angle steel 29 through the first clamping groove 31 in a clamping mode and is fixed with the frame body 1.
The utility model discloses the both sides of the department that the wall of a hole wall that fireproof wall body 2 and the wall of wearing entrance to a cave are connected are wrapped up the acupuncture blanket layer 32 of one deck aluminium silicate that is formed by the acupuncture blanket of aluminium silicate respectively, the surface cladding of the acupuncture blanket layer 32 of first aluminium silicate has the second various steel sheet 33 that the one deck austenite type S304 that is 1mm thick does not have magnetism stainless steel and makes, second various steel sheet 33 through the bolt respectively with fireproof wall body 2 and the power station valve room firewall mutually fixes; a 2 mm-thick leveling flexible waterproof putty layer is coated on one side surface of the fireproof wall body 2 on the side of the converter transformer in a scraping mode, and an 8 mm-thick air-entrapping leveling mortar layer is coated on the outer surface of the flexible waterproof putty layer in a scraping mode; gaps formed among the first aluminum silicate needle-punched blanket layer 32, the second color steel plate 33, the fireproof wall body 2 and the wall of the through-wall hole are filled with fireproof coating mortar.
The utility model discloses fire wall is formed by the ALC board of 200mm thick adopting the tongue-and-groove to peg graft side by side, fire wall's concatenation efficiency is high, fire behavior is strong, fire wall, the steel frame body, and the seam crossing between the 50mm thick ALC board is closely packed has the filling structure who forms by aluminium silicate needle felt, the filling structure between the 50mm thick ALC board of converter transformer side and the fire wall exposes the part and is filled up and has a layer fire prevention mortar layer, seal the various steel sheet of one deck between the 50mm thick ALC board of converter side and the non-magnetic conduction stainless steel shock-resistant plate, fire wall is by length 3200mm, width 600mm, ALC board of thickness 200mm pegs graft side by side through the tongue-and-groove and forms, fire wall scrapes the flexible putty layer of 2mm thick levelling simultaneously, flexible water-fast putty layer surface scrapes and scribbles the air entrainment of 8mm thick levelling mortar layer, so can make fire wall, the steel frame body, and form sealing connection structure between the fire prevention and the fire, the sealing performance of the power station valve hall is guaranteed, the fireproof performance and the sealing performance are improved, the fireproof effect is further improved, and the ALC plates with the thickness of 50mm are fixed on the front surface and the back surface of the frame body, so that the fireproof performance of the frame body can be effectively guaranteed. The utility model discloses adopt various steel sheet respectively to bordure in fireproof wall body and entrance to a cave wall and frame body wall junction, can effectively beautify the outward appearance of junction.
The utility model discloses the tow sides of the steel frame body 3 are respectively fixed with one deck first fire prevention protective layer 19 that is composed of ALC board 50mm thick through the bolt, the fire wall body 2, the gap department that first fire prevention protective layer 19 and the steel frame body 3 are connected is filled with filling structure 20 that is formed by aluminium silicate acupuncture blanket, filling structure 20 closely fills the fire wall body 2, the gap that first fire prevention protective layer 19 and the steel frame body 3 are connected; the front surface and the back surface of the frame body 1 are respectively fixed with a second fireproof protection layer 34 composed of ALC plates with the thickness of 50mm through bolts, and the joints of the fireproof wall body 2 and the frame body 1 and the second fireproof protection layer 34 are respectively wrapped with a second aluminum silicate needle-punched blanket layer 35 formed by aluminum silicate needle-punched blankets.
The fireproof wall body 2 of the utility model is coated with a 304 stainless steel shielding layer 21 with the thickness of 0.6mm on the outer surface of the first fireproof protection layer 19 which is positioned on the steel frame body 3 and positioned inside the valve hall and on the outer surface of the second fireproof protection layer 34 which is coated on the frame body 1 and positioned inside the valve hall; the fireproof wall body 2 is uniformly provided with a plurality of C80X 40X 20X 2.5 purlins 22 on the outer surface of the inner side of the valve hall, and the 304 stainless steel shielding layer 21 is fixedly connected with all the purlins 22 through bolts.
In the utility model, all of the first equilateral angle steels 10, all of the second equilateral angle steels 11, all of the third equilateral angle steels 12, all of the fourth equilateral angle steels 28, all of the fifth equilateral angle steels 29, all of the M12 bolts 7, all of the expansion bolts or chemical bolts, all of the purlins 22, and all of the bolts are all made of austenite type S304 non-magnetic stainless steel, all of the non-magnetic stainless steel fixing pressing plates 8 and the first nonmagnetic stainless steel fixing pressing plates 30 are all made of 5mm thick austenite type S304 non-magnetic stainless steel plates, all of the steel bars in the ALC plates are HRB400S hot-rolled thread austenite type S304 non-magnetic stainless steel bars, the first stainless steel clamp 16 and the second stainless steel clamp 18 are all made of austenite type S304 non-magnetic stainless steel, and are used for fixing the first ceramic silicon rubber sealing sleeve 15 or the second ceramic silicon rubber sealing sleeve 17, and a-20 x 4 aluminum alloy pressing ring 27 is arranged on the bolts, the-20 x 4 aluminium alloy pressure ring 27 is located between the head of the bolt and the first or second ceramic silicone rubber sealing sleeve 15, 17.
The utility model discloses be fixed with one deck 304 stainless steel shielding layer on the fire wall body is located the inboard surface of valve hall with steel support body and frame body respectively, and all first equilateral angle steel, second equilateral angle steel, third equilateral angle steel, fourth equilateral angle steel, fifth equilateral angle steel, first stainless steel clamp, second stainless steel clamp, the joint board, various steel sheet, M12 bolt, the purlin, and the bolt all adopts austenite type S304 to do not have the magnetism stainless steel and make, all do not have the fixed clamp plate of magnetism stainless steel and all adopt the thick austenite type S304 of 5mm to do not have magnetism stainless steel board and make, frame body and steel body all adopt austenite type S304 to do not have magnetism stainless steel square steel pipe welding and form, all ALC inboard reinforcing bars are HRB400S hot rolling screw thread austenite type S304 and do not have magnetism stainless steel bar, can further prevent that electromagnetic eddy current from producing, improve the electromagnetic isolation effect.
The utility model discloses leave the clearance between the pore wall of the change of current transformer bushing portion that the outer pipe wall of change of current transformer bushing and non-magnetic conduction stainless steel shock-resistant plate was seted up, can prevent effectively that non-magnetic conduction stainless steel shock-resistant plate from incising second pottery porcelain silicon rubber seal sleeve, can effectively protect flexible second pottery porcelain silicon rubber seal sleeve, and simultaneously, establish-20 x 4 aluminum alloy clamping ring between the head of bolt and first pottery porcelain silicon rubber seal sleeve or the second pottery porcelain silicon rubber seal sleeve, can further protect flexible first pottery porcelain silicon rubber seal sleeve or the second pottery porcelain silicon rubber seal sleeve. Utility model ALC board specification and performance parameter see table 1 and table 2 in detail, and rock wool composite sheet performance parameter sees table 3 in detail.
TABLE 1 the ALC board specification and Performance parameter table
TABLE 2 the utility model discloses ALC board specification and performance parameter table
TABLE 3 rock wool clad plate Performance parameters
The utility model discloses non-magnetic stainless steel shock resistance board parameter as follows:
the total thickness of the non-magnetic stainless steel impact-resistant plate exceeds 60mm, and the non-magnetic stainless steel impact-resistant plate consists of a double-layer panel, a square steel pipe keel, a binding plate and a connecting piece, and the non-magnetic stainless steel impact-resistant plate is a similar steel door plate in a real object. Wherein, the panel adopts a 3mm thick austenite type S304 nonmagnetic stainless steel plate. The keel is made of a 50mmx50mmx6mm austenite S304 nonmagnetic stainless steel square tube. An austenitic S304 nonmagnetic stainless steel plate with a thickness of 1mm is wrapped on the edge plate. The connecting piece adopts an austenite type S304 nonmagnetic stainless steel plate with the thickness of 5 mm. All other connectors such as bolts are made of austenitic S304 nonmagnetic stainless steel.
The utility model discloses closely knit aluminium silicate acupuncture blanket that fills in clearance between double-deck metal covering structure rock wool composite sheet and the current conversion transformer bushing. The cutting width of the aluminum silicate needle-punched blanket is required to be larger than the sealing edge width by 20mm, the aluminum silicate needle-punched blanket is stacked and arranged in a staggered mode, and the stacking height of the aluminum silicate needle-punched blanket is higher than the gap height by 150%. The clad surface of the rock wool composite board with the metal surface structure adopts a non-magnetic 304 stainless steel surface layer with the thickness of 0.6mm, so that the generation of electromagnetic eddy current can be effectively prevented. The rock wool composite board is made of natural rock and does not contain rock wool. The rock wool composite board has the advantages that the fibers are distributed in three dimensions, are uniform and compact, and have higher strength compared with common rock wool. The rock wool composite board is a firm material which is not easy to collapse, the stability of the material is kept due to the high density of the rock wool composite board, the anti-shrinkage capability is strong particularly at a continuous high temperature, and the integrity of the composite board is ensured, so that the optimal fireproof performance is achieved. The metal surface structure rock wool composite board can be self-bearing, does not need structural support, and is a purlin-free system within 12 m. The boards are spliced in a tongue-and-groove splicing mode, the boards are connected compactly, and the connecting gaps are subjected to jointing by fireproof thermal insulation mortar.
The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a firewall block structure is prevented to transformer substation which characterized in that: the method comprises the following steps that a square through-wall hole is formed in a firewall of a valve hall of the power station, the plugging structure is installed in the through-wall hole, and the plugging structure comprises a large plugging structure and a small plugging structure which is arranged in the large plugging structure and used for installing a converter transformer sleeve;
the large plugging structure comprises a frame body (1) which is formed by welding austenite S304 non-magnetic stainless steel square steel pipes and is arranged in the wall-penetrating opening, and a fireproof wall body (2) which is arranged in the frame body (1) and formed by splicing a plurality of ALC plates side by side through grooves and tongues, wherein the frame body (1) is in a cross shape, four square-hole-shaped mounting cavities are formed between the frame body and the wall of the wall-penetrating opening, the fireproof wall body (2) is arranged in each mounting cavity, and the frame body (1) is connected with the wall of the wall-penetrating opening through expansion bolts or chemical bolts;
small plugging structure mounting holes for mounting the small plugging structures are formed in the two fireproof walls (2) which are distributed side by side respectively, each small plugging structure mounting hole is internally provided with one small plugging structure, each small plugging structure comprises a steel frame body (3) which is formed by welding austenitic S304 non-magnetic stainless steel square steel tubes, is mounted in the small plugging structure mounting hole and is in a square shape, and a fireproof explosion-proof plate (4) which is mounted in the steel frame body (3) and is in a square shape;
the center of the fireproof explosion-proof plate (4) is provided with a current conversion transformer sleeve mounting hole (5) matched with the current conversion transformer sleeve, the current conversion transformer sleeve mounting holes (5) are distributed in an inclined mode, the inclination of the current conversion transformer sleeve mounting holes is consistent with that of the current conversion transformer sleeve, the current conversion transformer sleeve is mounted in the current conversion transformer sleeve mounting hole (5), and an aluminum silicate needle punched blanket layer (6) formed by an aluminum silicate needle punched blanket is filled between the hole wall of the current conversion transformer sleeve mounting hole (5) and the outer tube wall of the current conversion transformer sleeve.
2. The substation firewall plugging structure according to claim 1, wherein: the length of the ALC boards forming the fireproof wall body (2) is 3200mm, the width of the ALC boards is 600mm, the thickness of the ALC boards is 200mm, two adjacent ALC boards forming the fireproof wall body (2) in the same square-shaped installation cavity are spliced through the grooves and the tongues, all the ALC boards forming the fireproof wall body (2) in the same square-shaped installation cavity are spliced into the fireproof wall body (2) through the grooves and the tongues in sequence, and one fireproof wall body (2) is installed in each square-shaped installation cavity;
a plurality of Z-shaped non-magnetic stainless steel fixing pressure plates (8) are fixed on the fireproof wall body (2) through M12 bolts (7), and a clamping groove (9) is formed between each non-magnetic stainless steel fixed pressing plate (8) and the fireproof wall body (2), all the non-magnetic stainless steel fixed pressing plates (8) are distributed around the small plugging structure mounting hole, more than two first equilateral angle steels (10) of L100x10 are equidistantly welded on the outer annular surface of the steel frame body (3), all the first equilateral angle steels (10) are distributed around the outer annular surface of the steel frame body (3) in a circle, the number of the first equilateral angle steels (10) is the same as that of the clamping grooves (9) and corresponds to that of the clamping grooves one by one, all the clamping grooves (9) are positioned on the inner side of a valve hall of a power station valve hall, the first equilateral angle steel (10) is clamped in the corresponding clamping groove (9) and is fastened through the M12 bolt (7);
the center of the fireproof explosion-proof plate (4) is provided with a converter transformer bushing mounting hole (5) for mounting a converter transformer bushing, the fireproof and explosion-proof plate (4) comprises a first metal surface structure rock wool composite plate (41), a second metal surface structure rock wool composite plate (42) and a non-magnetic-conductive stainless steel impact-resistant plate (43) which are sequentially stacked from the inner side of the valve hall to the converter transformer side, the converter transformer sleeve mounting hole (5) sequentially penetrates through the first metal surface structure rock wool composite board (41), the second metal surface structure rock wool composite board (42) and the non-magnetic-conductive stainless steel impact-resistant board (43), the aluminum silicate needled blanket layer (6) is positioned between the hole wall of the converter transformer bushing mounting hole part formed in the first metal surface structure rock wool composite board (41) and the second metal surface structure rock wool composite board (42) and the outer wall of the converter transformer bushing;
more than two L50x6 second equilateral angle steels (11) are welded on the inner annular surface of the steel frame body (3) at equal intervals, all the second equilateral angle steels (11) are distributed around the inner annular surface of the steel frame body (3) for a circle, and the first metal surface structure rock wool composite plate (41) is fixed with each second equilateral angle steel (11) through bolts; more than two third equilateral angle steels (12) of L100x10 are welded on the inner annular surface of the steel frame body (3) at equal intervals, all the third equilateral angle steels (12) are distributed around the inner annular surface of the steel frame body (3) for a circle, and the second metal surface structure rock wool composite plate (42) is fixed with each third equilateral angle steel (12) through bolts; the steel frame body (3) is welded with a circle of clamping plates (13) made of austenite type S304 non-magnetic stainless steel at equal intervals on the side face located on the converter transformer side, each third equilateral angle steel (12) and each clamping plate (13) are provided with a non-magnetic-conductive stainless steel impact-resistant plate clamping groove (14), the periphery of each non-magnetic-conductive stainless steel impact-resistant plate (43) is respectively fastened and clamped in all the non-magnetic-conductive stainless steel impact-resistant plate clamping grooves (14), and the second equilateral angle steel (11), the third equilateral angle steel (12) and the non-magnetic-conductive stainless steel impact-resistant plate clamping grooves (14) are sequentially distributed side by side from the inner side of a valve hall to the converter transformer side.
3. The substation firewall plugging structure according to claim 2, wherein: a gap is reserved between the outer pipe wall of the converter transformer bushing and the hole wall of the converter transformer bushing mounting hole part formed in the non-magnetic stainless steel impact-resistant plate (43);
a first ceramic silicon rubber sealing sleeve (15) formed by ceramic silicon rubber is arranged between the outer tube wall of the current conversion transformer bushing and the outer surface of the first metal surface structure rock wool composite plate (41), a first stainless steel hoop (16) is arranged on the first ceramic silicon rubber sealing sleeve (15), the first ceramic silicon rubber sealing sleeve (15) is fixed with the outer tube wall of the current conversion transformer bushing through the first stainless steel hoop (16), and the first ceramic silicon rubber sealing sleeve (15) is fixed on the outer surface of the first metal surface structure rock wool composite plate (41) through a bolt;
a second ceramic silicon rubber sealing sleeve (17) formed by ceramic silicon rubber is arranged between the outer pipe wall of the converter transformer sleeve and the outer surface of the second metal surface structure rock wool composite board (42), a second stainless steel hoop (18) is arranged on the second ceramic silicon rubber sealing sleeve (17), and the second ceramic silicon rubber sealing sleeve (17) is fixed with the outer pipe wall of the converter transformer bushing through a second stainless steel hoop (18), the second ceramic silicon rubber sealing sleeve (17) is fixed on the outer surface of the second metal surface structure rock wool composite board (42) through bolts, and the second ceramic silicon rubber sealing sleeve fixed on the second metal surface structure rock wool composite board (42) is partially positioned between the second metal surface structure rock wool composite board (42) and the non-magnetic-conductive stainless steel impact-resistant board (43).
4. A firewall plugging structure of a substation according to claim 3, characterized in that: a first fireproof protection layer (19) is arranged at one end of the outer wall of the first metal surface structure rock wool composite board (41) and the non-magnetic-conductive stainless steel impact-resistant board (43), a first color steel plate (23) made of an austenite S304 non-magnetic stainless steel plate with the thickness of 1mm is coated at the joint of the first fireproof protection layer (19) and the non-magnetic-conductive stainless steel impact-resistant board (43) on the converter transformer side, the first color steel plate (23) is fixed with the first fireproof protection layer (19) and the non-magnetic-conductive stainless steel impact-resistant board (43) through bolts respectively, a filling structure (20) is arranged between the first fireproof protection layer (19) on the converter side and the fireproof wall body (2), and a fireproof mortar layer (24) is filled on the outer surface of the filling structure (20); a2 mm-thick leveling flexible waterproof putty layer is coated on one side surface of the converting side of the fireproof wall body (2) in a scraping mode, and an 8 mm-thick air-entrapping leveling mortar layer is coated on the outer surface of the flexible waterproof putty layer in a scraping mode.
5. A firewall plugging structure of a substation according to claim 4, wherein: the length, the width and the thickness of the first metal surface structure rock wool composite plate (41) are 3100mm multiplied by 3000mm multiplied by 50mm respectively, the length, the width and the thickness of the second metal surface structure rock wool composite plate (42) are 3100mm multiplied by 3000mm multiplied by 150mm respectively, and the length, the width and the thickness of the non-magnetic stainless steel impact-resistant plate (43) are 3100mm multiplied by 3000mm multiplied by 70mm respectively;
the first metal surface structure rock wool composite board (41) is formed by splicing three metal surface structure rock wool composite boards with the specifications of 1200mm multiplied by 3000mm multiplied by 50mm, 1200mm multiplied by 3000mm multiplied by 50mm and 700mm multiplied by 3000mm multiplied by 50mm in parallel through a rabbet, and all splicing gaps are provided with fireproof heat-preservation mortar structures in a pointing way; the second metal surface structure rock wool composite board (42) is formed by splicing three metal surface structure rock wool composite boards with the specifications of 1200mm multiplied by 3000mm multiplied by 150mm, 1200mm multiplied by 3000mm multiplied by 150mm and 700mm multiplied by 3000mm multiplied by 150mm in parallel through a rabbet, and all splicing gaps are provided with fireproof heat-preservation mortar structures in a pointing way; the metal surface structure rock wool composite sheet includes rock wool composite sheet (25) and inseparable cladding be in non-magnetic conduction 304 stainless steel surface course (26) on rock wool composite sheet (25) surface, the thickness of non-magnetic conduction 304 stainless steel surface course (26) is 0.6 mm.
6. A firewall plugging structure of a substation according to claim 5, characterized in that: first metal covering structure rock wool composite sheet (41) with between second metal covering structure rock wool composite sheet (42) and second metal covering structure rock wool composite sheet (42) with it all leaves the clearance to do not lead between magnetic stainless steel shock resistance board (43), and first metal covering structure rock wool composite sheet (41) with clearance between second metal covering structure rock wool composite sheet (42) is 10mm, second metal covering structure rock wool composite sheet (42) with it is 20mm to do not lead the clearance between magnetic stainless steel shock resistance board (43).
7. A firewall plugging structure of a substation according to claim 6, characterized in that: the fireproof wall body (2) is circumferentially fixed with a circle of first nonmagnetic stainless steel fixing pressing plate (30) in a Z shape through M12 bolts (7), the first nonmagnetic stainless steel fixing pressing plate (30) and a first clamping groove (31) are formed between the fireproof wall body (2), a circle of fourth equal-side angle steel (28) of L50x6 is fixed on the hole wall of the through-wall hole in an equidistant mode through expansion bolts or chemical bolts, the fifth equal-side angle steel (29) of more than two L100x10 is welded on each side wall of the frame body (1) in an equidistant mode, the first clamping groove (31) distributed on the wall hole side of the through-wall hole is used for clamping the fourth equal-side angle steel (28), and the first clamping groove (31) distributed on the frame body side of the fireproof wall body (2) is used for clamping the fifth equal-side angle steel (29), fireproof wall body (2) pass through first joint groove (31) joint fourth wait angle steel (28) with wear the hole wall of wall entrance to a cave fixed mutually, fireproof wall body (2) pass through first joint groove (31) joint fifth wait angle steel (29) with the frame body (1) is fixed mutually.
8. A firewall plugging structure of a substation according to claim 7, characterized in that: two sides of the connection part of the fireproof wall body (2) and the wall of the through-wall opening are respectively coated with a first aluminum silicate needle-punched blanket layer (32) formed by an aluminum silicate needle-punched blanket, the outer surface of the first aluminum silicate needle-punched blanket layer (32) is coated with a second color steel plate (33) made of an austenite S304 nonmagnetic stainless steel plate with the thickness of 1mm, and the second color steel plate (33) is respectively fixed with the fireproof wall body (2) and the firewall of the valve hall of the power station through bolts; and fireproof coating mortar is filled in gaps formed among the first aluminum silicate needled blanket layer (32), the second color steel plate (33), the fireproof wall body (2) and the wall of the through-wall opening.
9. The substation firewall plugging structure according to claim 8, wherein: a first fireproof protection layer (19) consisting of ALC plates with the thickness of 50mm is fixed on the front surface and the back surface of the steel frame body (3) through bolts respectively, a filling structure (20) formed by aluminum silicate needle felts is filled in a gap where the fireproof wall body (2), the first fireproof protection layer (19) and the steel frame body (3) are connected, and the filling structure (20) compactly fills the gap where the fireproof wall body (2), the first fireproof protection layer (19) and the steel frame body (3) are connected; the front surface and the back surface of the frame body (1) are respectively fixed with a second fireproof protection layer (34) consisting of ALC plates with the thickness of 50mm through bolts, and the joints of the fireproof wall body (2) and the frame body (1) and the second fireproof protection layer (34) are respectively coated with a second aluminum silicate needle-punched blanket layer (35) formed by aluminum silicate needle-punched blankets.
10. The substation firewall plugging structure according to claim 9, wherein: the fireproof wall body (2) is coated with a 304 stainless steel shielding layer (21) with the thickness of 0.6mm on the outer surface of the inner side of the valve hall, the outer surface of the first fireproof protection layer (19) which is coated on the steel frame body (3) and is positioned on the inner side of the valve hall and the outer surface of the second fireproof protection layer (34) which is coated on the frame body (1) and is positioned on the inner side of the valve hall; the fireproof wall body (2) is uniformly provided with a plurality of C80X 40X 20X 2.5 purlines (22) on the outer surface of the inner side of the valve hall, and the 304 stainless steel shielding layer (21) is fixedly connected with all the purlines (22) through bolts;
all the first equilateral angle steels (10), all the second equilateral angle steels (11), all the third equilateral angle steels (12), all the fourth equilateral angle steels (28), all the fifth equilateral angle steels (29), all the M12 bolts (7), all the expansion bolts or chemical bolts, all the purlins (22) and all the bolts are made of austenite S304 nonmagnetic stainless steel, all the nonmagnetic stainless steel fixing pressing plates (8) and the first nonmagnetic stainless steel fixing pressing plates (30) are made of austenite S304 nonmagnetic stainless steel plates with the thickness of 5mm, reinforcing steel bars in all the ALC plates are HRB400S hot-rolled thread austenite S304 nonmagnetic stainless steel bars, and the first stainless steel clamp (16) and the second stainless steel clamp (18) are made of austenite S304 nonmagnetic stainless steel and used for fixing the first ceramic silicone rubber sealing sleeve (15) or the second ceramic silicone rubber sealing sleeve (17) ) The bolt is provided with a 20 multiplied by 4 aluminum alloy pressure ring (27) in a penetrating way, and the 20 multiplied by 4 aluminum alloy pressure ring (27) is positioned between the head of the bolt and the first ceramic silicon rubber sealing sleeve (15) or the second ceramic silicon rubber sealing sleeve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920760714.0U CN210713328U (en) | 2019-05-24 | 2019-05-24 | Firewall plugging structure of transformer substation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920760714.0U CN210713328U (en) | 2019-05-24 | 2019-05-24 | Firewall plugging structure of transformer substation |
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| CN210713328U true CN210713328U (en) | 2020-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145047A (en) * | 2019-05-24 | 2019-08-20 | 应急管理部四川消防研究所 | A kind of substation's firewall plugging structure |
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2019
- 2019-05-24 CN CN201920760714.0U patent/CN210713328U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145047A (en) * | 2019-05-24 | 2019-08-20 | 应急管理部四川消防研究所 | A kind of substation's firewall plugging structure |
| CN110145047B (en) * | 2019-05-24 | 2024-01-16 | 应急管理部四川消防研究所 | Firewall plugging structure of transformer substation |
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