CN214479433U - High-pressure pouring busbar cell component - Google Patents
High-pressure pouring busbar cell component Download PDFInfo
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- CN214479433U CN214479433U CN202120349621.6U CN202120349621U CN214479433U CN 214479433 U CN214479433 U CN 214479433U CN 202120349621 U CN202120349621 U CN 202120349621U CN 214479433 U CN214479433 U CN 214479433U
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Abstract
The utility model provides a high pressure pouring busbar bath subassembly, including linkage unit and a plurality of bus duct unit, connect through linkage unit electric conduction between the adjacent bus duct unit, the bus duct unit includes three-phase copper bar and casing, and the surface of three-phase copper bar is equipped with the tectorial membrane insulating layer, and in the casing was worn to locate to three-phase copper bar be parallel to each other, the both ends of three-phase copper bar were exposed in the casing respectively, and the casing was made by refractory castable material. The utility model discloses a set up the tectorial membrane insulating layer on the surface of three-phase copper bar, guarantee its insulating nature, the three-phase copper bar is parallel to each other, its outer cladding is making the casing by fire-resistant pouring material, connect through the linkage unit is electrically conductive between the adjacent bus duct unit, the high pressure pouring bus duct subassembly that the mode was connected from this has small, occupation space is little, the characteristics of convenient transportation and installation, and simple structure, protection level is high, high pressure resistant, insulating nature is good, market competition is big.
Description
Technical Field
The utility model belongs to the technical field of the bus duct, especially, relate to a high pressure pouring busbar trough subassembly.
Background
With the rapid development of society, places such as modern high-rise buildings, commercial squares, large workshops and the like all need huge electric energy, and the electric energy with strong current needs to be transmitted, so that the traditional transmission conductor cable cannot meet the requirement of increasingly large high-voltage transmission, and a better solution is provided for the appearance of a high-voltage bus duct.
However, most of the traditional high-voltage bus ducts are high-voltage common-box bus ducts, and an air insulation mode is adopted, so that the high-voltage bus ducts are large in size, large in occupied space and inconvenient to transport and install, iron or aluminum alloy is used as a shell material, the cost is high, and the protection grade difference is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of above-mentioned prior art existence, provide a high pressure pouring bus duct subassembly, it is big to have solved bus duct occupation space among the prior art, and the problem of inconvenient transportation and installation has overcome the poor problem of protection rank simultaneously.
The utility model provides a high pressure pouring busbar bath subassembly, including linkage unit and a plurality of bus duct unit, pass through between the adjacent bus duct unit linkage unit conductive connection, the bus duct unit includes three-phase copper bar and casing, the surface of three-phase copper bar is equipped with the tectorial membrane insulating layer, the three-phase copper bar wears to locate in parallel each other in the casing, the both ends of three-phase copper bar expose respectively in the casing, the casing is made by the refractory castable material.
Further, the refractory castable is a composite resin.
Further, the connecting unit comprises a connecting plate, a connecting bolt and a connecting nut, a fixing through hole is formed in the connecting plate, the three-phase copper bars are exposed out of the shell, the connecting through holes are formed in the portions, outside the shell, of the three-phase copper bars, the ends of the copper bars of the adjacent bus duct units are mutually butted, and the connecting plate is connected with the two adjacent copper bars in the butt joint through the connecting bolt and the connecting nut respectively.
Furthermore, the connecting unit further comprises a phase separation plate, and the phase separation plate is arranged between the two copper bars.
Furthermore, a film-coated insulating layer is arranged on the surface of the phase separation plate.
Further, the connecting unit further comprises a connecting frame, the connecting frame is arranged at the joint of the two adjacent bus duct units, the connecting frame is respectively abutted to the end faces of the shells of the two adjacent bus duct units, and a refractory pouring material is poured in the connecting frame.
Furthermore, the shell is respectively provided with a connecting platform at the end surfaces of two sides.
Further, when the voltage is less than or equal to 10KV, the distance between two adjacent copper bars is not less than 125 mm.
Further, when the voltage is greater than 10KV, the distance between two adjacent copper bars is not less than 150 mm.
The utility model has the advantages that:
the utility model provides a high pressure pouring busbar bath subassembly, its insulating nature is guaranteed to the tectorial membrane insulating layer on three-phase copper bar surface, the three-phase copper bar is parallel to each other, its outer cladding is making the casing by fire-resistant pouring material, connect through the linkage unit is electrically conductive between the adjacent bus duct unit, the high pressure pouring busbar bath subassembly that the mode was connected from this has small, occupation space is little, the characteristics of convenient transportation and installation, and simple structure, protection level is high, high pressure resistant, insulating nature is good, market competition is big.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a schematic view of the overall structure of a high-pressure pouring busway assembly according to the embodiment 1.
Fig. 2 is a top view of a high pressure cast busway assembly of this example 1.
Fig. 3 is a half sectional view of the bus duct unit in this embodiment 1.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1:
referring to fig. 1 to 3, embodiment 1 provides a high-pressure pouring busway assembly, including linkage unit 1 and a plurality of busway unit 2, connect through linkage unit 1 electrically conductive between the adjacent busway unit 2, busway unit 2 includes three-phase copper bar 21 and casing 22, and the surface of three-phase copper bar 21 is equipped with tectorial membrane insulating layer 23, and three-phase copper bar 21 wears to locate in casing 22 parallelly to each other, and the both ends of three-phase copper bar 21 expose respectively in casing 22, and casing 22 is made by fire-resistant castable material.
It should be noted that the film-coated insulating layer 23 is arranged on the surface of the three-phase copper bar 21 to ensure the insulating property of the copper bar 21, but a copper material needs to be exposed at the joint to be in conductive connection with the connecting unit 1, after the insulating property of the copper bar 21 is ensured, a fireproof casting material is poured outside the copper bar 21 to form the shell 22, at this time, the volume of the shell 22 is greatly reduced, the space between two phases of the copper bars 21 does not need to be reserved in a traditional air insulation manner, the volume advantage is larger, then the connecting unit 1 is used for conductive connection with the adjacent bus duct units 2, the installation is convenient, and the overall protection level is high.
As a preferable mode, the fire-resistant casting material is composite resin, the shell 22 is integrally formed by casting, and the composite resin has strong waterproof performance and corrosion resistance, so that the bus duct can be used in a humid environment or in water, and meanwhile, the bus duct also has excellent impact resistance. Meanwhile, as the linear expansion coefficient of the composite resin is very close to the conductor, the condition that the bus duct is mutually extended and occluded due to the mixed assembly of a plurality of materials with different expansion coefficients can not occur, so that the insulation protection of the bus duct is improved, the insulation property is very high, the safety performance of the bus duct is improved, and the safety of the bus duct in high-voltage work is particularly ensured.
As another embodiment, the refractory castable material is a mixture of refractory aggregate, a powder, and a binder.
As another embodiment, the refractory castable material comprises the following components: 55-65 parts of phenolic epoxy resin, 10-16 parts of curing agent, 20-25 parts of quartz sand and 7-14 parts of vermiculite. Wherein: the preparation method of the pouring material comprises the following steps: step 1, putting phenolic epoxy resin, a curing agent, quartz sand and vermiculite in corresponding parts by weight into a vacuum stirrer; step 2, setting the pressure of the vacuum stirrer to be 1.0MPa, and stirring for 15 minutes; and 3, obtaining the liquid casting material.
As another embodiment, the refractory castable comprises the following components in parts by weight: 50-100 parts of resin, 25-100 parts of flame retardant, 5-50 parts of heat conducting filler, 25-100 parts of common filler and 5-20 parts of graphene. Wherein the graphene is added as graphene oxide; the resin is one of unsaturated resin, polyurethane resin, epoxy resin and organic silicon resin; the flame retardant is one or a mixture of aluminum hydroxide and magnesium hydroxide, and the mass percentage of the aluminum hydroxide in the mixture is 25-40%; the heat-conducting filler is one or a mixture of two of alumina and boron nitride, and the mass percentage of the alumina in the mixture is 19-50%; the common filler is one or a mixture of any more of calcium carbonate, quartz powder, mica powder and silicon micropowder.
In the embodiment, for the film-coated insulating layer 23 on the surface of the copper bar 21, the copper bar 21 is placed into a powder fluidized bed for heating, then the attached powder is sent into the powder fluidized bed, the copper bar 21 is subjected to heat treatment at the temperature of 100-280 ℃, the copper bar 21 after film coating is prepared, the copper bar 21 is cooled, dried and assembled into a shell, and the high-pressure casting bus duct is prepared. Wherein the attached powder is powdery, the particle size is 0.01-1 mm, and the adhesive comprises the following components: 10-35 parts of nano aluminum nitride, 70-100 parts of modified epoxy resin, 20-35 parts of curing agent, 2-4 parts of accelerator, 5-18 parts of flame retardant, 2-6 parts of pigment and 1-10 parts of auxiliary agent, wherein the modified epoxy resin is o-cresol formaldehyde modified epoxy resin and/or nitrile rubber modified epoxy resin, and the pigment is barium sulfate; the flame retardant is at least one of tributyl phosphate, tri (2-ethylhexyl) phosphate, tri (2-chloroethyl) phosphate and hydromagnesite micropowder; the auxiliary agent comprises a leveling agent, an antioxidant and a defoaming agent; the epoxy equivalent range of the o-cresol formaldehyde modified epoxy resin is 800-900 g/eq; the epoxy equivalent range of the nitrile rubber modified epoxy resin is 200-280 g/equivalent; the size range of the nano aluminum nitride is 30-60 nm, the curing agent is triethylene tetramine and/or dimethylamino propylamine, and the accelerator is at least one of triethanolamine, stannous chloride, ferric trichloride and p-chlorobenzoic acid.
Referring to fig. 2, in this embodiment, the connection unit 1 includes a connection plate 11, a connection bolt 12 and a connection nut 13, a fixing through hole is opened on the connection plate 11, a connection through hole 24 is provided at a portion of the three-phase copper bar 21 exposed outside the housing 22, ends of the copper bars 21 of adjacent bus duct units 2 are butted with each other, and the connection plate 11 is respectively connected to two adjacent copper bars 21 butted with each other through the connection bolt 12 and the connection nut 13.
It should be noted that the fixing through hole on the connecting plate 11 is a kidney-shaped hole to facilitate position adjustment, the connecting through hole 24 on the exposed part of the copper bar 21 of one bus duct unit 2 is connected with the connecting plate 11 by using the connecting bolt 12 and the connecting nut 13, and is subjected to pre-tightening treatment, then the copper bars 21 of the adjacent bus duct units 2 are opposite to each other until the two opposite copper bars 21 are correspondingly butted and butted, the end-to-end butting is performed, the connecting through hole 24 on the copper bar 21 of the bus duct unit 2 is aligned with the fixing through hole on the connecting plate 11, the connecting bolt 12 and the connecting nut 13 are placed for pre-tightening, and finally, after the butting position is adjusted, all the copper bars are tightened, and the butting process of the two bus duct units 2 is completed.
Referring to fig. 2, as an embodiment, the connection unit 1 further includes a phase separator 3, the phase separator 3 is disposed between the two phases of the copper bars 21, and in the case of three phases of the copper bars 21, one phase separator 3 is disposed between the phases. More specifically, the surface of the phase separator 3 is provided with a film-coated insulating layer 23, so that the insulating performance of the phase separator 3 is further ensured.
Referring to fig. 1, as an embodiment, the connection unit 1 further includes a connection frame 4, the connection frame 4 is disposed at a connection position of two adjacent bus duct units 2, the connection frame 4 abuts against end surfaces of the shells 22 of the two adjacent bus duct units 2, and a refractory casting material is cast in the connection frame 4. In order to realize high-protection butt joint between two adjacent bus duct units 2, after the connecting unit 1 is connected, the connecting frame 4 is clamped between the end surfaces of the two shells 22, the connecting frame 4 can be closed on three sides, only one side is opened, a refractory pouring material is poured from one side of the opening to fill the connecting frame 4, the protection grade of the connecting part is ensured, and finally a connecting cover plate can be covered.
As an embodiment, the shell 22 is respectively provided with connecting platforms 25 at two side end surfaces, and the connecting platforms 25 are parallel and opposite, so that the connecting frame 4 can be conveniently clamped and transported and installed.
In one embodiment, when the voltage is less than or equal to 10KV, the distance between two adjacent copper bars 21 is not less than 125 mm; when the voltage is more than 10KV, the distance between two adjacent copper bars 21 is not less than 150 mm. Different transmission voltages correspond to different copper bar 21 intervals, so that the circuit safety can be ensured, and the space and the materials can be correspondingly saved.
Compared with the prior art, the utility model provides a high pressure pouring busbar bath subassembly, its insulating nature is guaranteed to the tectorial membrane insulating layer 23 on three-phase copper bar 21 surface, three-phase copper bar 21 is parallel to each other, its outsourcing is making casing 22 by fire-resistant casting material, connect through the 1 electrically conductive of linkage unit between the adjacent bus duct unit 2, the high pressure pouring busbar bath subassembly that from this mode is connected has smallly, occupation space is little, the characteristics of convenient transportation and installation, and simple structure, protection level is high, it is high pressure resistant, insulating nature is good, market competition is big.
Finally, it should be emphasized that the present invention is not limited to the above-described embodiments, but only to the preferred embodiments of the invention, and is not limited to the embodiments, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (10)
1. The utility model provides a high pressure pouring busway subassembly, its characterized in that, includes linkage unit and a plurality of bus duct unit, and is adjacent pass through between the bus duct unit linkage unit conductive connection, the bus duct unit includes three-phase copper bar and casing, the surface of three-phase copper bar is equipped with the tectorial membrane insulating layer, the three-phase copper bar wears to locate mutually parallelly in the casing, the both ends of three-phase copper bar expose respectively in the casing, the casing is made by refractory castable material.
2. A high pressure cast busway assembly as claimed in claim 1, wherein said fire resistant casting material is a composite resin.
3. The high-pressure pouring busbar trough assembly according to claim 2, wherein the connecting unit comprises a connecting plate, a connecting bolt and a connecting nut, a fixing through hole is formed in the connecting plate, connecting through holes are formed in the parts, exposed out of the shell, of the three-phase copper bars, the ends of the copper bars of adjacent busbar trough units are butted with each other, and the connecting plate is respectively connected with the two adjacent copper bars which are butted with each other through the connecting bolt and the connecting nut.
4. The high pressure cast busway assembly of claim 3, wherein the connector unit further comprises a phase separator plate disposed between the two copper bars.
5. The high pressure cast busway assembly of claim 4, wherein said phase separator plates are coated with an insulating layer.
6. The high pressure casting busway assembly as claimed in claim 5, wherein said connecting unit further comprises a connecting frame, said connecting frame is disposed at a junction of two adjacent busway units, said connecting frame abuts against a housing end surface of two adjacent busway units, respectively, and a refractory casting material is cast into said connecting frame.
7. A high pressure cast busway assembly as claimed in claim 6, wherein said housing is provided with connection platforms at each of two side faces.
8. The high pressure pouring busway assembly as claimed in any one of claims 1 to 7, wherein the spacing between adjacent two adjacent copper bars is not less than 125mm when the voltage is less than or equal to 10 KV.
9. The high pressure pouring busway assembly as claimed in any one of claims 1 to 7, wherein the spacing between adjacent two adjacent copper bars is not less than 150mm when the voltage is greater than 10 KV.
10. The high pressure cast busway assembly of claim 8, wherein the spacing between adjacent two adjacent copper bars is no less than 150mm when the voltage is greater than 10 KV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120349621.6U CN214479433U (en) | 2021-02-07 | 2021-02-07 | High-pressure pouring busbar cell component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120349621.6U CN214479433U (en) | 2021-02-07 | 2021-02-07 | High-pressure pouring busbar cell component |
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| Publication Number | Publication Date |
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| CN214479433U true CN214479433U (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120349621.6U Active CN214479433U (en) | 2021-02-07 | 2021-02-07 | High-pressure pouring busbar cell component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116979463A (en) * | 2023-09-25 | 2023-10-31 | 广州市半径电力铜材有限公司 | Fire-resistant waterproof type pouring bus duct connector |
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2021
- 2021-02-07 CN CN202120349621.6U patent/CN214479433U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116979463A (en) * | 2023-09-25 | 2023-10-31 | 广州市半径电力铜材有限公司 | Fire-resistant waterproof type pouring bus duct connector |
| CN116979463B (en) * | 2023-09-25 | 2023-12-01 | 广州市半径电力铜材有限公司 | Fire-resistant waterproof type pouring bus duct connector |
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