CN111969526A - Mineral fire-resistant bus duct - Google Patents
Mineral fire-resistant bus duct Download PDFInfo
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- CN111969526A CN111969526A CN202010898027.2A CN202010898027A CN111969526A CN 111969526 A CN111969526 A CN 111969526A CN 202010898027 A CN202010898027 A CN 202010898027A CN 111969526 A CN111969526 A CN 111969526A
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- connecting flange
- fire
- groove
- pipe body
- bus duct
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/10—Cooling
Abstract
The invention discloses a mineral fire-resistant bus duct, which comprises a bus duct body and a connector, wherein the bus duct body comprises a bus bar and a metal shell arranged outside the bus bar, the connector comprises a rectangular metal pipe body with openings at two ends, the metal pipe body comprises a middle pipe body and end pipe bodies arranged at two ends of the middle pipe body, one ends of the two end pipe bodies are respectively sleeved on the peripheries of the two ends of the middle pipe body in a sliding manner, a first connecting flange is arranged on the outer side wall of the middle part of the middle pipe body, a second connecting flange matched with the first connecting flange is arranged on the outer side wall of the end pipe body, the inner side of the other end of the end pipe body is connected with the outer side of one end of the metal shell in a sliding manner, a third connecting flange is arranged on the outer side wall of the connecting end of the metal shell and the end pipe body, a fourth connecting flange matched, the middle inner side of the middle tube body is provided with a conductive copper plate used for connecting the busbars on the two sides.
Description
Technical Field
The invention relates to the technical field of power transmission equipment, in particular to a mineral fire-resistant bus duct.
Background
The fire-resistant bus duct consists of a shell coated with fire-resistant paint, a bus wrapped with fire-resistant mica tapes and a support made of fire-resistant insulating materials, wherein a plurality of grooves are formed in the support, the grooves are internally provided with the buses and fix the buses, a bus duct connecting box is arranged at one end of the bus duct, and a bus distribution box is arranged in the bus duct. The modern high-rise building and the large-scale workshop need huge electric energy, and the strong current of hundreds of thousands of amperes needed by the huge load needs to be selected and used as safe and reliable conduction equipment, the bus duct is developed by the United states, the bus duct is really applied in Japan, and then the bus duct is rapidly developed, and the bus duct is a power distribution device for efficiently transmitting current, so that the requirement of economic and reasonable wiring of higher and higher buildings and large-scale factories is met; the fire-resistant bus duct has excellent insulating property, can be continuously used in normal environment and can be used for one hour in fire environment, and can be suitable for high-rise buildings and important facilities to replace fire-resistant cables to play a role in conveying and power distribution. Current fire-resistant bus duct inner structure only sets up the one deck mica tape on the copper bar surface after, assembles with the steel sheet, spouts one deck fire prevention paint on the steel sheet surface at last, and refractory material fire-resistant effect is poor, and along with ambient temperature's rising and internal current increase, fire-resistant type bus duct can deform and become invalid, can not guarantee its normal stable transmission of electricity under the conflagration condition, therefore current fire-resistant type bus duct can only persist the normal transmission of electricity of short time when taking place the conflagration.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a mineral fire-resistant bus duct.
The technical scheme adopted by the invention is as follows:
a mineral fire-resistant bus duct comprises a bus duct body and a connector, wherein the bus duct body comprises a bus bar and a metal shell arranged outside the bus bar, an insulating protective layer is arranged on the outer surface of the bus bar, a mineral fire-resistant layer is arranged on the outer surface of the insulating protective layer, a ceramic silicon rubber waterproof and moisture-proof layer is arranged between the outer surface of the mineral fire-resistant layer and the inner side wall of the metal shell, the connector comprises a rectangular metal pipe body with two open ends, the metal pipe body comprises a middle pipe body and end pipe bodies symmetrically arranged at two ends of the middle pipe body, one ends of the two end pipe bodies are respectively sleeved on the peripheries of the two ends of the middle pipe body in a sliding manner, a first connecting flange is arranged on the outer side wall of the middle part of the middle pipe body, a second connecting flange matched with the first connecting flange, the inner side of the other end of the end pipe body is connected with the outer side of one end of the metal shell in a sliding mode, a third connecting flange is arranged on the outer side wall of the connecting end of the metal shell and the end pipe body, a fourth connecting flange matched with the third connecting flange is arranged on the inner side wall of the connecting end of the end pipe body and the metal shell, the third connecting flange is located on the inner side of the fourth connecting flange, and a conductive copper plate used for connecting busbars on two sides is arranged on the inner side of the middle pipe body; after the first connecting flange is connected with the second connecting flanges on two sides through bolts, two sides of the conductive copper plate are respectively contacted with the busbars on two sides of the middle pipe body, and the third connecting flange is contacted with the fourth connecting flange.
Preferably, the busbar comprises a plurality of copper bars arranged side by side, and the outer surface of each copper bar is provided with an insulating protective layer; the conductive copper plate comprises a plurality of copper plates which are arranged corresponding to the copper bars.
Preferably, one side of the third connecting flange facing the fourth connecting flange is provided with a first groove arranged around the metal shell, one side of the fourth connecting flange facing the third connecting flange is provided with a first convex strip matched with the first groove, and a first fireproof sealing ring is arranged in the first groove.
Preferably, the two sides of the first connecting flange are respectively provided with a second groove arranged around the middle pipe body, one side, facing the first connecting flange, of the second connecting flange is provided with a second raised line matched with the second groove, and a second fireproof sealing ring is arranged in the second groove.
Preferably, a plurality of cooling channels are arranged in the side wall of the metal shell along the axial direction of the metal shell, a third groove is arranged on the third connecting flange and positioned at the inner side of the first groove close to the metal shell, a third raised line matched with the third groove is arranged on the fourth connecting flange and positioned at the inner side of the first raised line close to the metal shell, a third fire-proof sealing ring is arranged in the third groove, a plurality of first drainage channels corresponding to the cooling channels one by one are arranged in the third connecting flange, one end of each first drainage channel is communicated with the corresponding cooling channel, the other end of each first drainage channel extends to the side surface of the third connecting flange positioned between the first groove and the third groove, fourth grooves are arranged at the two sides of the first connecting flange and positioned at the inner side of the second groove close to the metal shell, and a fourth raised line matched with the fourth grooves is arranged at one side of the second connecting flange facing the first connecting flange, the utility model discloses a fire prevention sealing device, including first connecting flange, first recess, first fire prevention sealing washer, second connecting flange, second recess, fourth fire prevention sealing washer are equipped with in the fourth recess, be equipped with second drainage channel in the pipe wall of tip body, the one end of second drainage channel extends to the side that second connecting flange is located between second sand grip and the fourth sand grip, and the other end extends to the side that fourth connecting flange is located between first sand grip and the third sand grip, be equipped with a plurality of drainage holes that run through this first connecting flange along the axial on the first connecting flange, the drainage hole is located between second recess and the fourth recess.
Preferably, a plurality of heat dissipation fins are arranged on the outer side wall of the metal shell.
Preferably, the plurality of radiator fins includes a plurality of long radiator fins and short radiator fins arranged in a staggered manner.
Preferably, the insulating protective layer is a ceramic silicon rubber insulating protective layer; the mineral substance flame retardant coating is including the first mineral substance flame retardant coating outside the insulating protective layer of locating each copper bar, locate the second mineral substance flame retardant coating outside all first mineral substance flame retardant coatings and locate the third mineral substance flame retardant coating outside the second mineral substance flame retardant coating, first mineral substance flame retardant coating is synthetic mica tape or the magnesium oxide area of thickness at 0.2mm ~ 2mm, the second mineral substance flame retardant coating is the aluminium silicate ceramic fiber area of thickness at 3mm ~ 5mm, the third mineral substance flame retardant coating is the fire-resistant cotton filler that keeps warm of aluminium silicate.
Preferably, the outer surface of the metal shell is covered with a fireproof coating.
The invention has the beneficial effects that:
1. the bus bar is coated by the insulating layer and then is provided with the mineral fire-resistant layer for fire protection, the ceramic silicon rubber waterproof and moisture-proof layer is arranged between the mineral fire-resistant layer and the outer metal shell, so that fire and moisture can be prevented, the outer metal shell has good fire resistance, and the overall fire resistance of the bus duct is greatly improved;
2. the special connector is connected with the bus duct, so that the bus duct can be conveniently expanded, a bus duct body cannot be damaged, and the original insulation and fire resistance of the bus duct body are protected to the greatest extent;
3. the sealing performance and the fireproof performance of the key connecting points are enhanced through the matching of the grooves, the fireproof sealing rings and the convex strips;
4. by means of the uniquely designed cooling system, it is ensured that the power transmission mains can remain powered in flame conditions, gaining valuable time for ensuring evacuation and fire fighting of personnel in case of fire.
Drawings
FIG. 1 is a schematic diagram of an external front view structure according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the upper portion of the right side of the middle tube body in the embodiment of the present invention;
FIG. 3 is a schematic cross-sectional structure diagram of a bus duct body in an embodiment of the invention;
FIG. 4 is a schematic right-view structural diagram of a conductive copper plate according to an embodiment of the present invention;
reference numerals: 100. the bus duct comprises a bus duct body, 110, a bus bar, 111, a copper bar, 112, an insulating protective layer, 113, a mineral fire-resistant layer, 114, a first mineral fire-resistant layer, 115, a second mineral fire-resistant layer, 116, a third mineral fire-resistant layer, 117, a ceramic silicon rubber waterproof and moisture-proof layer, 120, a metal shell, 121, a third connecting flange, 122, a first groove, 123, a first fireproof sealing ring, 124, a cooling channel, 125, a third groove, 126, a third fireproof sealing ring, 127, a first drainage channel, 128, a heat dissipation fin, 200, a connector, 210, a middle pipe body, 211, a first connecting flange, 212, a conductive copper plate, 213, a conductive copper sheet, 214, a bolt, 215, a copper plate, 216, a second groove, 217, a second fireproof sealing ring, 218, a fourth groove, 219, a fourth fireproof sealing ring, 220, an end pipe body, 221, a second connecting flange, 222 and a fourth connecting flange, 223. first sand grip, 224, second sand grip, 225, third sand grip, 226, fourth sand grip, 227, second drainage channel, 230, drainage hole, 240, insulating board.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 1 to 4, a mineral fireproof bus duct includes a bus duct body 100 and a connector 200, the bus duct body 100 includes a bus bar 110 and a metal shell 120 disposed outside the bus bar 110, an insulating protective layer 112 is disposed on an outer surface of the bus bar 110, a mineral fireproof layer 113 is disposed on an outer surface of the insulating protective layer 112, a ceramic silicone rubber waterproof and moisture-proof layer 117 is disposed between an outer surface of the mineral fireproof layer 113 and an inner side wall of the metal shell 120, the connector 200 includes a rectangular metal tube body with openings at two ends, the metal tube body includes a middle tube body 210 and end tube bodies 220 symmetrically disposed at two ends of the middle tube body 210, one ends of the end tube bodies 220 are respectively slidably sleeved at two peripheries of the middle tube body 210, a first connecting flange 211 is disposed on an outer side wall of the middle portion of the middle tube body 210, and a second connecting flange 211 matched with the first connecting flange 211 is disposed on an outer side wall of one end of the end The flange 221, the inner side of the other end of the end pipe 220 is slidably connected to the outer side of one end of the metal casing 120, the outer side wall of the connection end of the metal casing 120 and the end pipe 220 is provided with a third connection flange 121, the inner side wall of the connection end of the end pipe 220 and the metal casing 120 is provided with a fourth connection flange 222 matched with the third connection flange 121, the third connection flange 121 is located at the inner side of the fourth connection flange 222, the inner side of the middle part of the middle pipe 210 is provided with a conductive copper plate 212 for connecting the busbars 110 at two sides, and two sides of the conductive copper plate 212 are provided with a plurality of conductive copper sheets 213 in a U shape at equal intervals from top to bottom; after the first connecting flange 211 is connected with the second connecting flanges 221 at two sides through the bolts 214, the conductive copper sheets 213 at two sides of the conductive copper plate 212 are respectively contacted with the busbars 110 at two sides of the middle tube body 210, and the third connecting flange 121 is contacted with the fourth connecting flange 222.
The busbar 110 is coated by the insulating layer and then is provided with the mineral fire-resistant layer 113 for fire protection, the ceramic silicon rubber waterproof and moisture-proof layer 117 is arranged between the mineral fire-resistant layer 113 and the outer metal shell 120, so that fire and moisture can be prevented, the outer metal shell 120 has good fire resistance, and the overall comprehensive fire resistance of the bus duct is greatly improved.
In order to facilitate expansion of the bus duct, the bus duct can be connected through a specially-made connector 200, the connector 200 includes a middle tube 210 and end tubes 220 arranged at two ends of the middle tube 210, and the two end tubes 220 are symmetrical about the middle tube 210. The end pipe bodies 220 at the two ends of the middle pipe body 210 are respectively connected with the bus ducts for expansion, and similarly, the bus ducts at the two ends are also in a symmetrical structure by taking the middle pipe body 210 as the center. The middle tube body 210 and the end tube bodies 220 at two sides are connected and fixed by connecting a first flange and a second flange at two sides through a bolt 214, in the locking process of the bolt 214, the first connecting flange 211 is close to the second connecting flange 221, the third connecting flange 121 is close to the fourth connecting flange 222, the busbar 110 is tightly pressed with the conductive copper sheet 213 on the conductive copper plate 212, and the U-shaped conductive copper sheet 213 can be pressed to the busbar 110 which is flatly communicated with the two sides of the middle tube body 210.
The specially-made connector 200 is extremely convenient to expand the bus duct, only two ends of the end pipe body 220 are sleeved at one end of the bus duct body 100 and one end of the middle pipe body 210 respectively, and then the end pipe bodies are connected through the bolts 214, so that the damage to the bus duct body 100 is avoided, and the original insulation and fire resistance of the bus duct body 100 are protected to the greatest extent.
The ceramic silicon rubber waterproof and moistureproof layer 117 in the bus duct body 100 forms a hard ceramic protective layer under the ablation of high-temperature flame, and has low smoke and no halogen, so that the strength of the bus duct becomes higher and is not deformed, the magnesium oxide band cannot be scattered when being sintered into powder, and meanwhile, the mineral fireproof layer 113 enables the bus duct to have the characteristics of good heat dissipation, large current carrying, high strength and the like.
The busbar 110 comprises a plurality of copper bars 111 arranged side by side, and an insulating protective layer 112 is respectively arranged on the outer surface of each copper bar 111; the conductive copper plate 212 comprises a plurality of copper plates 215 corresponding to the copper bar 111, and conductive copper plates 213 are respectively arranged on two sides of each copper plate 215 from top to bottom at equal intervals.
The conductive copper plate 212 can be arranged on the inner wall of the middle tube body 210 through the insulating plate 240, after the insulating plate 240 is provided with the grooves, the copper plates 215 are embedded in the grooves, and the copper bar 111 is tightly pressed and connected with the conductive copper plates 213 on the copper plates 215 after being inserted into the grooves, so that the sealing performance between the copper bars 111 can be improved.
One side of the third connecting flange 121 facing the fourth connecting flange 222 is provided with a first groove 122 surrounding the metal shell 120, one side of the fourth connecting flange 222 facing the third connecting flange 121 is provided with a first protruding strip 223 matched with the first groove 122, and the first groove 122 is internally provided with a first fireproof sealing ring 123.
In order to enhance the sealing and fireproof performance of the joint of the bus duct body 100, the third connecting flange 121 and the fourth connecting flange 222 can be provided with the first groove 122 matched with each other and the first convex strip 223 embedded in the first groove 122, and the first fireproof sealing ring 123 is installed in the first groove 122 to enhance the sealing and fireproof performance.
The two sides of the first connecting flange 211 are respectively provided with a second groove 216 arranged around the middle pipe body 210, one side of the second connecting flange 221 facing the first connecting flange 211 is provided with a second protruding strip 224 matched with the second groove 216, and a second fireproof sealing ring 217 is arranged in the second groove 216.
In order to enhance the sealing and fireproof performance of the joint between the middle pipe body 210 and the end pipe body 220, a second groove 216 and a second protruding strip 224 embedded in the second groove 216 can be arranged on the first connecting flange 211 and the second connecting flange 221, and a second fireproof sealing ring 217 can be arranged in the second groove 216 to enhance the sealing and fireproof performance.
A plurality of cooling channels 124 are arranged in the side wall of the metal shell 120 along the axial direction of the metal shell 120, a third groove 125 is arranged on the third connecting flange 121 on the inner side of the first groove 122 close to the metal shell 120, a third protruding strip 225 matched with the third groove 125 is arranged on the inner side of the fourth connecting flange 222 on the first protruding strip 223 close to the metal shell 120, a third fire-proof sealing ring 126 is arranged in the third groove 125, a plurality of first drainage channels 127 corresponding to the cooling channels 124 one to one are arranged in the third connecting flange 121, one end of each first drainage channel 127 is communicated with the corresponding cooling channel 124, the other end of each first drainage channel 127 extends to the side surface of the third connecting flange 121 between the first groove 122 and the third groove 125, fourth grooves 218 are arranged on the inner side of the second groove 216 close to the metal shell 120 on the two sides of the first connecting flange 211, and a fourth protruding strip matched with the fourth grooves 218 is arranged on one side of the second connecting flange 221 facing the first connecting flange 211 The strip 226 is provided with a fourth fire-proof sealing ring 219 in the fourth groove 218, a second drainage channel 227 is provided in the tube wall of the end tube 220, one end of the second drainage channel 227 extends to the side surface of the second connecting flange 221 between the second protruding strip 224 and the fourth protruding strip 226, the other end extends to the side surface of the fourth connecting flange 222 between the first protruding strip 223 and the third protruding strip 225, the first connecting flange 211 is provided with a plurality of drainage holes 230 axially penetrating through the first connecting flange 211, and the drainage holes 230 are provided between the second groove 216 and the fourth groove 218.
In order to further enhance the fireproof performance and the heat dissipation performance of the bus duct, the cooling liquid can be conveyed in the cooling channel 124 to dissipate heat and cool the bus duct body 100, and the cooling liquid can be pure water or other liquid with a cooling function. The coolant liquid flows into the first drainage channel 127 through the cooling channel 124, and then enters the second drainage channel 227 through the seal cavity formed between the first groove 122 and the third groove 125, and then enters the drainage hole 230 through the seal cavity formed between the second groove 216 and the fourth groove 218 through the second drainage channel 227 and flows into the next bus duct body 100, and the flow of entering the next bus duct body 100 through the drainage hole 230 is opposite to that of the previous bus duct body 100, and the description is omitted. By means of the uniquely designed cooling system, it is ensured that the power transmission mains can remain powered in flame conditions, gaining valuable time for ensuring evacuation and fire fighting of personnel in case of fire.
A plurality of heat dissipation fins 128 are disposed on the outer side wall of the metal housing 120.
By disposing the heat dissipation fins 128 outside the metal housing 120, the heat dissipation effect can be further enhanced, and the fire protection capability can be improved.
The plurality of radiator fins 128 includes a plurality of long radiator fins 128 and short radiator fins 128 arranged alternately.
The long and short heat dissipation fins 128 are arranged in a staggered manner, so that the heat dissipation effect of the bus duct body 100 can be improved by utilizing the air circulation between the long heat dissipation fins 128 and the short heat dissipation fins 128.
The insulating protective layer 112 is a ceramic silicon rubber insulating protective layer 112; the mineral fire-resistant layer 113 includes the outer first mineral fire-resistant layer 114 of insulating protective layer 112 of locating each copper bar 111, locates the outer second mineral fire-resistant layer 115 of all first mineral fire-resistant layers 114 and locates the outer third mineral fire-resistant layer 116 of second mineral fire-resistant layer 115, first mineral fire-resistant layer 114 is at the synthetic mica tape or the magnesium oxide area of 0.2mm ~ 2mm of thickness, second mineral fire-resistant layer 115 is at the alumina silicate ceramic fibre area of 3mm ~ 5mm of thickness, third mineral fire-resistant layer 116 is the refractory heat preservation cotton filler of alumina silicate.
The ceramic silicon rubber insulating protective layer 112 is formed by winding a ceramic silicon rubber composite belt on the surface of the copper bar 111, and the mineral fireproof layer 113 improves the fireproof and high-temperature resistant performance of the bus duct body 100.
The outer surface of the metal case 120 is covered with a fireproof coating.
The fire protection coating can provide timely fire protection at the initial stage of a fire disaster, and provides time for the transmission of cooling liquid, and after the cooling liquid is continuously transmitted, the heat dissipation capacity of the bus duct body 100 can be greatly improved, the power supply can be effectively kept under the condition of flame for the power transmission main line, and precious time is won for evacuation and fire fighting of personnel under the condition of the fire disaster.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. The mineral fire-resistant bus duct is characterized by comprising a bus duct body (100) and a connector (200), wherein the bus duct body (100) comprises a bus bar (110) and a metal shell (120) arranged outside the bus bar (110), an insulating protective layer (112) is arranged on the outer surface of the bus bar (110), a mineral fire-resistant layer (113) is arranged on the outer surface of the insulating protective layer (112), a ceramic silicon rubber waterproof and moisture-proof layer (117) is arranged between the outer surface of the mineral fire-resistant layer (113) and the inner side wall of the metal shell (120), the connector (200) comprises a rectangular metal pipe body with two open ends, the metal pipe body comprises a middle pipe body (210) and end pipe bodies (220) symmetrically arranged at two ends of the middle pipe body (210), and one ends of the end pipe bodies (220) are respectively sleeved on the peripheries of the two ends of the middle pipe body (, a first connecting flange (211) is arranged on the outer side wall of the middle part of the middle pipe body (210), a second connecting flange (221) matched with the first connecting flange (211) is arranged on the outer side wall of one end of the end pipe body (220) facing the first connecting flange (211), the inner side of the other end of the end pipe body (220) is connected with the outer side of one end of the metal shell (120) in a sliding way, a third connecting flange (121) is arranged on the outer side wall of the connecting end of the metal shell (120) and the end pipe body (220), a fourth connecting flange (222) matched with the third connecting flange (121) is arranged on the inner side wall of the connecting end of the end pipe body (220) and the metal shell (120), the third connecting flange (121) is located inside the fourth connecting flange (222), the inner side of the middle part of the middle pipe body (210) is provided with a conductive copper plate (212) for connecting the busbars (110) at two sides; after the first connecting flange (211) is connected with the second connecting flanges (221) on two sides through the bolts (214), two sides of the conductive copper plate (212) are respectively contacted with the busbars (110) on two sides of the middle pipe body (210), and the third connecting flange (121) is contacted with the fourth connecting flange (222).
2. The mineral fire-resistant bus duct according to claim 1, wherein the bus bar (110) comprises a plurality of copper bars (111) arranged side by side, and an insulating protective layer (112) is respectively arranged on the outer surface of each copper bar (111); the conductive copper plate (212) comprises a plurality of copper plates (215) which are arranged corresponding to the copper bars (111).
3. The mineral fire-resistant bus duct of claim 2, wherein a first groove (122) arranged around the metal shell (120) is formed in one side, facing the fourth connecting flange (222), of the third connecting flange (121), a first protruding strip (223) matched with the first groove (122) is formed in one side, facing the third connecting flange (121), of the fourth connecting flange (222), and a first fire-proof sealing ring (123) is arranged in the first groove (122).
4. The mineral fire-resistant bus duct of claim 3, wherein two sides of the first connecting flange (211) are respectively provided with a second groove (216) arranged around the middle pipe body (210), one side of the second connecting flange (221) facing the first connecting flange (211) is provided with a second convex strip (224) matched with the second groove (216), and a second fireproof sealing ring (217) is arranged in the second groove (216).
5. The mineral fire-resistant bus duct according to claim 4, wherein a plurality of cooling channels (124) are arranged in the side wall of the metal shell (120) along the axial direction of the metal shell (120), a third groove (125) is arranged on the third connecting flange (121) and is positioned on the inner side of the first groove (122) close to the metal shell (120), a third convex strip (225) matched with the third groove (125) is arranged on the inner side of the fourth connecting flange (222) close to the metal shell (120), a third fire-proof sealing ring (126) is arranged in the third groove (125), a plurality of first drainage channels (127) corresponding to the cooling channels (124) in a one-to-one manner are arranged in the third connecting flange (121), one end of each first drainage channel (127) is communicated with the corresponding cooling channel (124), and the other end of each first drainage channel (127) extends to the side face of the third connecting flange (121) between the first groove (122) and the third groove (125), the inner sides of the two sides of the first connecting flange (211), which are positioned in the second groove (216), close to the metal shell (120) are provided with fourth grooves (218), one side, facing the first connecting flange (211), of the second connecting flange (221) is provided with fourth convex strips (226) matched with the fourth grooves (218), fourth grooves (218) are internally provided with fourth fireproof sealing rings (219), the tube wall of the end tube body (220) is internally provided with second drainage channels (227), one end of each second drainage channel (227) extends to the side surface, positioned between the second convex strip (224) and the fourth convex strip (226), of the second connecting flange (221), the other end of each second drainage channel extends to the side surface, positioned between the first convex strip (223) and the third convex strip (225), of the fourth connecting flange (222), the first connecting flange (211) is provided with a plurality of drainage holes (230) which axially penetrate through the first connecting flange (211), the drainage aperture (230) is located between the second groove (216) and the fourth groove (218).
6. The mineral fire resistant bus duct of claim 5, wherein a plurality of heat dissipating fins (128) are provided on an outer sidewall of the metal housing (120).
7. The mineral-fire resistant bus duct of claim 6, wherein the plurality of cooling fins (128) comprises a plurality of staggered long cooling fins (128) and short cooling fins (128).
8. The mineral fire resistant bus duct of claim 7, wherein the insulating protective layer (112) is a ceramic silicone rubber insulating protective layer (112); the mineral fire-resistant layer (113) is including locating first mineral fire-resistant layer (114) outside insulating protective layer (112) of each copper bar (111), locating outside all first mineral fire-resistant layer (114) second mineral fire-resistant layer (115) and locating outside second mineral fire-resistant layer (115) third mineral fire-resistant layer (116), first mineral fire-resistant layer (114) are synthetic mica area or the magnesium oxide area that thickness is 0.2mm ~ 2mm, second mineral fire-resistant layer (115) are the aluminium silicate ceramic fibre area that thickness is 3mm ~ 5mm, third mineral fire-resistant layer (116) are the fire-resistant heat preservation cotton filler of aluminium silicate.
9. The mineral-fire resistant bus duct of claim 8, wherein an outer surface of the metal housing (120) is covered with a fire resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010898027.2A CN111969526B (en) | 2020-08-31 | 2020-08-31 | Mineral fire-resistant bus duct |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010898027.2A CN111969526B (en) | 2020-08-31 | 2020-08-31 | Mineral fire-resistant bus duct |
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| CN111969526A true CN111969526A (en) | 2020-11-20 |
| CN111969526B CN111969526B (en) | 2021-09-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI774358B (en) * | 2021-05-07 | 2022-08-11 | 宏泰電工股份有限公司 | Fire-resistant cable connector |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0788190A2 (en) * | 1996-02-08 | 1997-08-06 | Asea Brown Boveri Ag | Coupling part for two sections of a high voltage conductor |
| CN205986037U (en) * | 2016-08-29 | 2017-02-22 | 四川蜀腾母线有限公司 | A fire -proof bus duct |
| CN206117072U (en) * | 2016-08-31 | 2017-04-19 | 赵郁 | Easy dress type bus duct |
| CN206283226U (en) * | 2016-12-28 | 2017-06-27 | 广东长电科技股份有限公司 | A kind of small size suitable for fire-fighting equipment stablizes heat-resisting bus duct |
| CN107204594A (en) * | 2017-06-21 | 2017-09-26 | 镇江神飞新能源科技有限公司 | A kind of bus duct having from cooling recirculation system |
| CN107768886A (en) * | 2017-10-12 | 2018-03-06 | 威腾电气集团股份有限公司 | A kind of nuclear power is with pressing bus in high-performance |
| CN207251134U (en) * | 2017-03-29 | 2018-04-17 | 深圳市沃尔核材股份有限公司 | Intensive insulation bus duct |
| CN109412098A (en) * | 2017-08-16 | 2019-03-01 | 江苏向荣电气有限公司 | It is a kind of to connect fast stable bus bowl assembly |
| CN110932210A (en) * | 2019-10-10 | 2020-03-27 | 湖北工业大学 | Bus duct and bus duct joint thereof |
| CN210246168U (en) * | 2019-08-12 | 2020-04-03 | 成都丹楹科技有限公司 | Conducting bar cooling device |
| CN111430965A (en) * | 2020-03-31 | 2020-07-17 | 郑东升 | Bus connector and cabinet combining structure |
-
2020
- 2020-08-31 CN CN202010898027.2A patent/CN111969526B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0788190A2 (en) * | 1996-02-08 | 1997-08-06 | Asea Brown Boveri Ag | Coupling part for two sections of a high voltage conductor |
| CN205986037U (en) * | 2016-08-29 | 2017-02-22 | 四川蜀腾母线有限公司 | A fire -proof bus duct |
| CN206117072U (en) * | 2016-08-31 | 2017-04-19 | 赵郁 | Easy dress type bus duct |
| CN206283226U (en) * | 2016-12-28 | 2017-06-27 | 广东长电科技股份有限公司 | A kind of small size suitable for fire-fighting equipment stablizes heat-resisting bus duct |
| CN207251134U (en) * | 2017-03-29 | 2018-04-17 | 深圳市沃尔核材股份有限公司 | Intensive insulation bus duct |
| CN107204594A (en) * | 2017-06-21 | 2017-09-26 | 镇江神飞新能源科技有限公司 | A kind of bus duct having from cooling recirculation system |
| CN109412098A (en) * | 2017-08-16 | 2019-03-01 | 江苏向荣电气有限公司 | It is a kind of to connect fast stable bus bowl assembly |
| CN107768886A (en) * | 2017-10-12 | 2018-03-06 | 威腾电气集团股份有限公司 | A kind of nuclear power is with pressing bus in high-performance |
| CN210246168U (en) * | 2019-08-12 | 2020-04-03 | 成都丹楹科技有限公司 | Conducting bar cooling device |
| CN110932210A (en) * | 2019-10-10 | 2020-03-27 | 湖北工业大学 | Bus duct and bus duct joint thereof |
| CN111430965A (en) * | 2020-03-31 | 2020-07-17 | 郑东升 | Bus connector and cabinet combining structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI774358B (en) * | 2021-05-07 | 2022-08-11 | 宏泰電工股份有限公司 | Fire-resistant cable connector |
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Effective date of registration: 20220621 Address after: No.2666, Konggang 4th Road, xihanggang Economic Development Zone, Shuangliu District, Chengdu, Sichuan 610000 Patentee after: CHENGDU HIGH STANDARD ELECTRIC Co.,Ltd. Address before: No.2666, Konggang 4th Road, xihanggang Economic Development Zone, Shuangliu District, Chengdu, Sichuan 610000 Patentee before: Zeng Fanqiang |