Power bus connecting device of reduction furnace

Abstract

The utility model discloses a power supply bus connecting device of a reduction furnace, which relates to the technical field of power supply bus connecting systems of polycrystalline silicon reduction furnaces and comprises a transformer, an adjusting power cabinet, the reduction furnace, a first connecting component and a second connecting component. The second connecting assembly comprises an aluminum alloy tubular bus. According to the technical scheme provided by the utility model, the aluminum busbar and the aluminum alloy tubular bus are adopted, so that the conductive connection of the power supply bus connecting device of the reduction furnace is realized; the reduction furnace power bus connecting device adopting the aluminum busbar and the aluminum alloy tubular bus has the advantages of being lighter in weight and lower in input cost, breaks through the traditional scheme that copper materials are adopted for conducting connection all the time, provides a new feasible scheme for conducting connection in the electrical industry, and is beneficial to rapid and efficient development of the current polycrystalline silicon industry.

Description

Technical Field

[0001] The utility model relates to the technical field of a power bus connection system for a polysilicon reduction furnace, in particular to a power bus connection device for a reduction furnace. Background Art

[0002] At present, the power busbar system connections of domestic polysilicon reduction furnaces are mostly based on copper materials, mainly including copper fillet busbar plus copper fillet busbar, copper fillet busbar plus copper tube busbar, copper fillet busbar plus water-cooled cable and other solutions. However, the copper material investment cost of the reduction furnace power busbar system is high, which is not conducive to the rapid and efficient development of the current polysilicon industry.

[0003] Therefore, how to reduce the cost of the reduction furnace power bus system is a problem that urgently needs to be solved. Utility Model Content

[0004] The main purpose of the utility model is to provide a reduction furnace power bus connection device, aiming to solve the problem of how to reduce the cost of the reduction furnace power bus system.

[0005] To achieve the above-mentioned purpose, the utility model proposes a reduction furnace power bus connection device, which includes a transformer, a regulating power cabinet, a reduction furnace, a first connection component and a second connection component, the first connection component includes an aluminum busbar, the second connection component includes an aluminum alloy tubular busbar, the two ends of the aluminum busbar are respectively connected to the outgoing busbar on the transformer and the incoming busbar on the regulating power cabinet, and the two ends of the aluminum alloy tubular busbar are respectively connected to the outgoing busbar on the regulating power cabinet and the electrode plate on the reduction furnace.

[0006] In one embodiment, the first connecting component also includes a first connecting member and a second connecting member, the first connecting member is arranged between the outgoing busbar on the transformer and the aluminum busbar, one end of the first connecting member is detachably connected to the outgoing busbar on the transformer, and the other end of the first connecting member is detachably connected to the aluminum busbar; the second connecting member is arranged between the aluminum busbar and the incoming busbar on the regulating power cabinet, one end of the second connecting member is detachably connected to the aluminum busbar, and the other end of the second connecting member is detachably connected to the incoming busbar on the regulating power cabinet.

[0007] In one embodiment, the outgoing busbar on the transformer includes a first outgoing copper busbar, the first connecting piece includes a first copper foil flexible connecting piece and a first copper-aluminum connecting piece, one end of the first copper foil flexible connecting piece is detachably connected to the first outgoing copper busbar, the first copper-aluminum connecting piece is arranged between the other end of the first copper foil flexible connecting piece and the aluminum busbar, and the other end of the first copper foil flexible connecting piece, the first copper-aluminum connecting piece and the aluminum busbar are detachably connected.

[0008] In one embodiment, the reduction furnace power bus connection device also includes a first fastener, the first fastener includes a first bolt and a first nut, a first mounting hole is provided on the first copper foil flexible connection, a second mounting hole is provided on the first copper-aluminum connector, and a third mounting hole is provided on the aluminum busbar, and the first bolt passes through the first mounting hole, the second mounting hole and the third mounting hole and is threadedly connected to the first nut.

[0009] In one embodiment, the incoming busbar on the regulating power cabinet includes an incoming copper busbar, and the second connecting piece includes a second copper foil flexible connecting piece and a second copper-aluminum connecting piece, one end of the second copper foil flexible connecting piece is detachably connected to the incoming copper busbar, and the second copper-aluminum connecting piece is arranged between the other end of the second copper foil flexible connecting piece and the aluminum busbar, and the other end of the second copper foil flexible connecting piece, the second copper-aluminum connecting piece and the aluminum busbar are detachably connected.

[0010] In one embodiment, the second connecting assembly includes a third connecting member and a fourth connecting member, the third connecting member is arranged between the outgoing busbar on the regulating power cabinet and the aluminum alloy tubular busbar, one end of the third connecting member is detachably connected to the outgoing busbar on the regulating power cabinet, and the other end of the third connecting member is detachably connected to the aluminum alloy tubular busbar; the fourth connecting member is arranged between the aluminum alloy tubular busbar and the electrode plate on the reduction furnace, one end of the fourth connecting member is detachably connected to the aluminum alloy tubular busbar, and the other end of the fourth connecting member is detachably connected to the electrode plate on the reduction furnace.

[0011] In one embodiment, the outgoing busbar on the regulating power cabinet includes a second outgoing copper busbar, the third connecting piece includes a third copper foil flexible connecting piece and a third copper-aluminum connecting piece, one end of the third copper foil flexible connecting piece is detachably connected to the second outgoing copper busbar, the third copper-aluminum connecting piece is arranged between the other end of the third copper foil flexible connecting piece and the aluminum alloy tubular busbar, and the other end of the third copper foil flexible connecting piece, the third copper-aluminum connecting piece and the aluminum alloy tubular busbar are detachably connected.

[0012] In one embodiment, the electrode plate on the reduction furnace includes a copper electrode plate, and the fourth connecting member includes a copper braided flexible connection and a fourth copper-aluminum connecting member, one end of the copper braided flexible connection is detachably connected to the copper electrode plate, and the fourth copper-aluminum connecting member is arranged between the other end of the copper braided flexible connection and the aluminum alloy tubular busbar, and the other end of the copper braided flexible connection, the fourth copper-aluminum connecting member and the aluminum alloy tubular busbar are detachably connected.

[0013] In one embodiment, the reduction furnace power bus connection device further includes a first insulating sleeve, and the first insulating sleeve is disposed on the outer wall of the first connection assembly and the aluminum busbar.

[0014] In one embodiment, the reduction furnace power bus connection device further includes a second insulating sleeve, and the second insulating sleeve is arranged on the outer wall of the second connection assembly and the aluminum alloy tubular bus.

[0015] In the embodiment of the utility model, the aluminum busbar and the aluminum alloy tubular busbar are both used for conductive connection. The aluminum busbar is arranged between the outgoing busbar on the transformer and the incoming busbar on the regulating power cabinet, and the aluminum alloy tubular busbar is arranged between the outgoing busbar on the regulating power cabinet and the electrode plate on the reduction furnace, thereby realizing the conductive connection of the reduction furnace power busbar connection device. In this embodiment, the aluminum busbar can be an aluminum fillet busbar, and the aluminum alloy tubular busbar can be a semi-insulated aluminum-magnesium alloy tubular busbar. The embodiment of the utility model realizes the conductive connection of the reduction furnace power bus connection device by adopting aluminum busbars and aluminum alloy tubular busbars. Compared with the existing structure adopting all-copper busbars, the reduction furnace power bus connection device adopting aluminum busbars and aluminum alloy tubular busbars has the advantages of lighter weight and lower investment cost, breaking the traditional solution of always adopting copper materials as conductive connection, providing a new feasible solution for conductive connection in the electrical industry, which is beneficial to the rapid and efficient development of the current polysilicon industry. In addition, the total loop resistance of the reduction furnace power bus connection device adopting aluminum busbars and aluminum alloy tubular busbars is less than the total loop resistance of the all-copper busbar solution of the same furnace type, which is also beneficial to reducing the energy consumption of the reduction furnace power bus connection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of a power bus connection device for a reduction furnace according to the utility model;

[0018] Figure 2 It is a structural schematic diagram of an embodiment of the first connecting piece of the reduction furnace power bus connection device of the utility model.

[0019] Description of Figure Numbers:

[0020] 100. Reduction furnace power bus connection device; 1. transformer; 11. first outgoing copper busbar; 111. fourth mounting hole; 2. power adjustment cabinet; 21. incoming copper busbar; 22. second outgoing copper busbar; 3. reduction furnace; 31. copper electrode plate; 4. first connection assembly; 41. aluminum busbar; 411. third mounting hole; 42. first connection piece; 421. first copper foil soft connection; 4211. first mounting hole; 4212. fifth mounting hole; 422. first copper-aluminum connection piece; 4221. second mounting hole; 43. second connection piece; 431. second copper foil soft connection; 432 , the second copper-aluminum connector; 5, the second connecting assembly; 51, the aluminum alloy tubular busbar; 52, the third connector; 521, the third copper foil soft connector; 522, the third copper-aluminum connector; 53, the fourth connector; 531, the copper braided soft connector; 532, the fourth copper-aluminum connector; 6, the first fastener; 61, the first bolt; 62, the first nut; 63, the first plane gasket; 64, the second plane gasket; 65, the first spring washer; 7, the second fastener; 71, the second bolt; 72, the second nut; 73, the third plane gasket; 74, the fourth plane gasket; 75, the second spring washer.

[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, and back), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0025] At present, the power busbar system connections of domestic polysilicon reduction furnaces are mostly based on copper materials, mainly including copper fillet busbar plus copper fillet busbar, copper fillet busbar plus copper tube busbar, copper fillet busbar plus water-cooled cable and other solutions. However, the copper material investment cost of the reduction furnace power busbar system is high, which is not conducive to the rapid and efficient development of the current polysilicon industry.

[0026] The main purpose of the utility model is to provide a reduction furnace power bus connection device, aiming to solve the problem of how to reduce the cost of the reduction furnace power bus system.

[0027] See also Figure 1 In one embodiment of the utility model, the reduction furnace power bus connection device 100 includes a transformer 1, a regulating power cabinet 2, a reduction furnace 3, a first connecting component 4 and a second connecting component 5, the first connecting component 4 includes an aluminum busbar 41, the second connecting component 5 includes an aluminum alloy tubular busbar 51, the two ends of the aluminum busbar 41 are respectively connected to the outgoing busbar on the transformer 1 and the incoming busbar on the regulating power cabinet 2, and the two ends of the aluminum alloy tubular busbar 51 are respectively connected to the outgoing busbar on the regulating power cabinet 2 and the electrode plate on the reduction furnace 3.

[0028] In the embodiment of the utility model, the aluminum busbar 41 and the aluminum alloy tubular busbar 51 are both used for conductive connection. The aluminum busbar 41 is arranged between the outgoing busbar on the transformer 1 and the incoming busbar on the regulating power cabinet 2, and the aluminum alloy tubular busbar 51 is arranged between the outgoing busbar on the regulating power cabinet 2 and the electrode plate on the reduction furnace 3, thereby realizing the conductive connection of the reduction furnace power busbar connection device 100. In this embodiment, the aluminum busbar 41 can be an aluminum fillet busbar, and the aluminum alloy tubular busbar 51 can be a semi-insulated aluminum-magnesium alloy tubular busbar.

[0029] The technical solution of the utility model realizes the conductive connection of the reduction furnace power bus connection device 100 by adopting an aluminum busbar 41 and an aluminum alloy tubular busbar 51. Compared with the existing structure using a full copper busbar, the reduction furnace power bus connection device 100 using the aluminum busbar 41 and the aluminum alloy tubular busbar 51 has the advantages of lighter weight and lower investment cost, breaking the traditional solution of using copper as a conductive connection, providing a new feasible solution for the conductive connection of the electrical industry, which is beneficial to the rapid and efficient development of the current polysilicon industry. In addition, the total loop resistance of the reduction furnace power bus connection device 100 using the aluminum busbar 41 and the aluminum alloy tubular busbar 51 is less than the total loop resistance of the full copper busbar solution of the same furnace type, which is also beneficial to reducing the energy consumption of the reduction furnace power bus connection device 100.

[0030] In one embodiment, the first connecting component 4 also includes a first connecting member 42 and a second connecting member 43, the first connecting member 42 is arranged between the outgoing busbar and the aluminum busbar 41 on the transformer 1, one end of the first connecting member 42 is detachably connected to the outgoing busbar on the transformer 1, and the other end of the first connecting member 42 is detachably connected to the aluminum busbar 41; the second connecting member 43 is arranged between the aluminum busbar 41 and the incoming busbar on the regulating power cabinet 2, one end of the second connecting member 43 is detachably connected to the aluminum busbar 41, and the other end of the second connecting member 43 is detachably connected to the incoming busbar on the regulating power cabinet 2; specifically, the first connecting member 42 is arranged between the aluminum busbar 41 and the outgoing busbar on the transformer 1, and the second connecting member 43 is arranged between the aluminum busbar 41 and the incoming busbar of the regulating power cabinet 2. By arranging the first connecting member 42 and the second connecting member 43, it is easier to overlap the outgoing busbar on the transformer 1, the aluminum busbar 41 and the incoming busbar on the regulating power cabinet 2.

[0031] In one embodiment, the outgoing busbar on the transformer 1 includes a first outgoing copper busbar 11, the first connector 42 includes a first copper foil flexible connector 421 and a first copper-aluminum connector 422, one end of the first copper foil flexible connector 421 is detachably connected to the first outgoing copper busbar 11, the first copper-aluminum connector 422 is arranged between the other end of the first copper foil flexible connector 421 and the aluminum busbar 41, and the other end of the first copper foil flexible connector 421, the first copper-aluminum connector 422 and the aluminum busbar 41 are detachably connected; specifically, since the first outgoing copper busbar 11 is made of copper and the aluminum busbar 41 is made of aluminum, in order to enable the first outgoing copper busbar 11 and the aluminum busbar 41 to be smoothly overlapped to achieve conductivity, the first connector 42 includes a first copper foil flexible connector 421 and a first copper-aluminum connector 422, the first outgoing copper busbar 11, the first copper foil flexible connector 421, the first copper-aluminum connector 422 and the aluminum busbar The busbars 41 are connected in sequence. By setting the first copper foil flexible connection 421, the vibration generated by the transformer 1 can be eliminated. By setting the first copper-aluminum connector 422, the first copper foil flexible connection 421 and the aluminum busbar 41 can be avoided from direct contact, the galvanic cell reaction can be eliminated, the line heating can be reduced, the energy consumption can be effectively reduced, and it is more conducive to the conductive connection of the reduction furnace power bus connection device 100. In this embodiment, the first copper foil flexible connection 421 can be made of red copper with a purity of more than 99.9%, and a copper foil diffusion welding process is adopted. The current carrying capacity is 1.2 times that of the busbar; the first copper-aluminum connector 422 can be made of a copper-aluminum composite plate, the copper-aluminum composite plate includes a first copper plate and a first aluminum plate, and is processed in the form of explosion welding. The thickness of the first copper-aluminum composite plate is 2 mm, and the thickness ratio of the first copper plate is 50%. The first copper plate abuts against the first copper foil flexible connection 421, and the first aluminum plate abuts against the aluminum busbar 41.

[0032] See also Figure 2 In one embodiment, the reduction furnace power bus connection device 100 also includes a first fastener 6, the first fastener 6 includes a first bolt 61 and a first nut 62, a first copper foil flexible connection 421 is provided with a first mounting hole 4211, a first copper-aluminum connector 422 is provided with a second mounting hole 4221, and a third mounting hole 411 is provided on the aluminum busbar 41. The first bolt 61 passes through the first mounting hole 4211, the second mounting hole 4221 and the third mounting hole 411 and is threadedly connected with the first nut 62; specifically, the first fastener 6 can realize a detachable connection between the first copper foil flexible connection 421, the first copper-aluminum connector 422 and the aluminum busbar 41, and the connection is stable, the disassembly and assembly are simple, and the operation is convenient.

[0033] In this embodiment, the first bolt 61 can be an 8.8 grade galvanized bolt, and the first fastener 6 also includes a first plane gasket 63, a second plane gasket 64 and a first spring washer 65. The first plane gasket 63 and the second plane gasket 64 can both be single-sided tooth butterfly gaskets. The first bolt 61 passes through the first plane gasket 63, the first mounting hole 4211, the second mounting hole 4221, the third mounting hole 411, the second plane gasket 64 and the first spring washer 65 and is threadedly connected with the first nut 62. The first plane gasket 63 is used to increase the contact area between the first bolt 61 and the first copper foil soft connection 421, the second plane gasket 64 is used to increase the contact area between the first nut 62 and the aluminum busbar 41, and the first spring washer 65 is used to prevent the first nut 62 from loosening. The first bolt 61 and the first nut 62 are tightened according to the corresponding torque to ensure the structural stability of the reduction furnace power bus connection device 100. In this embodiment, there are multiple first fasteners 6, and the number of first mounting holes 4211, second mounting holes 4221 and third mounting holes 411 is consistent with the number of first fasteners 6 and is arranged one-to-one. This embodiment does not limit the specific number of first fasteners 6.

[0034] According to an embodiment of the utility model, the reduction furnace power bus connection device 100 also includes a first fastener 6 and a third fastener, the first fastener 6 includes a first bolt 61 and a first nut 62, the third fastener includes a third bolt and a third nut, a first copper foil soft connection 421 is provided with a first mounting hole 4211, a second mounting hole 4221 and a sixth mounting hole are provided on the first copper-aluminum connector 422, and a third mounting hole 411 is provided on the aluminum busbar 41. The first bolt 61 passes through the first mounting hole 4211 and the second mounting hole 4221 and is threadedly connected with the first nut 62, and the third bolt passes through the sixth mounting hole and the third mounting hole 411 and is threadedly connected with the third nut. The first fastener 6 and the third fastener are used to realize a detachable connection between the first copper-aluminum connector 422, the first copper-aluminum connector 422 and the aluminum busbar 41, and the connection is stable, the disassembly and assembly are simple, and the operation is convenient; in this embodiment, the third fastener has the same structure as the first fastener 6.

[0035] In this embodiment, the reduction furnace power bus connection device 100 also includes a second fastener 7, the second fastener 7 includes a second bolt 71 and a second nut 72, a fourth mounting hole 111 is provided on the first outgoing copper busbar 11, and a fifth mounting hole 4212 is provided on the first copper foil flexible connection 421. The second bolt 71 passes through the fourth mounting hole 111 and the fifth mounting hole 4212 and is threadedly connected with the second nut 72. By providing the second fastener 7, a detachable connection between the first outgoing copper busbar 11 and the first copper foil flexible connection 421 can be achieved, and the connection is stable, the disassembly and assembly are simple, and the operation is convenient.

[0036] In this embodiment, the second bolt 71 can be an 8.8 grade galvanized bolt, and the second fastener 7 also includes a third plane gasket 73, a fourth plane gasket 74 and a second spring washer 75. The third plane gasket 73 and the fourth plane gasket 74 can both be single-sided tooth butterfly gaskets. The second bolt 71 passes through the third plane gasket 73, the fifth mounting hole 4212, the fourth mounting hole 111, the fourth plane gasket 74 and the second spring washer 75 and is threadedly connected with the second nut 72. The third plane gasket 73 is used to increase the contact area between the second bolt 71 and the first copper foil soft connection 421, the fourth plane gasket 74 is used to increase the contact area between the second nut 72 and the first outlet copper busbar 11, and the second spring washer 75 is used to prevent the second nut 72 from loosening. The second bolt 71 and the second nut 72 are tightened according to the corresponding torque to ensure the structural stability of the reduction furnace power bus connection device 100. In this embodiment, there are multiple second fasteners 7, and the number of the fourth mounting holes 111 and the fifth mounting holes 4212 is consistent with the number of the second fasteners 7 and is arranged one-to-one. This embodiment does not limit the specific number of the second fasteners 7.

[0037] In one embodiment, the incoming busbar on the regulating power cabinet 2 includes an incoming copper busbar 21, and the second connector 43 includes a second copper foil soft connector 431 and a second copper-aluminum connector 432. One end of the second copper foil soft connector 431 is detachably connected to the incoming copper busbar 21, and the second copper-aluminum connector 432 is arranged between the other end of the second copper foil soft connector 431 and the aluminum busbar 41. The other end of the second copper foil soft connector 431, the second copper-aluminum connector 432 and the aluminum busbar 41 are detachably connected; specifically, since the incoming copper busbar 21 is made of copper and the aluminum busbar 41 is made of aluminum, in order to enable the incoming copper busbar 21 and the aluminum busbar 41 to be smoothly overlapped to achieve conductivity, the second connector 43 includes a second copper foil soft connector 431 and a second copper-aluminum connector 432, and the aluminum busbar 41 and the second copper-aluminum connector The second copper foil flexible connector 431 and the incoming copper busbar 21 are connected in sequence. The second copper foil flexible connector 431 is provided to facilitate line overlap. The second copper-aluminum connector 432 can avoid direct contact between the second copper foil flexible connector 431 and the aluminum busbar 41, eliminate the galvanic cell reaction, reduce line heating, effectively reduce energy consumption, and facilitate the conductive connection of the reduction furnace power busbar connection device 100. In this embodiment, the second copper foil flexible connector 431 has the same structure as the first copper foil flexible connector 421, and the second copper-aluminum connector 432 has the same structure as the first copper-aluminum connector 422. The second copper-aluminum connector 432 includes a second copper plate and a second aluminum plate connected to each other, the second copper plate abuts against the second copper foil flexible connector 431, and the second aluminum plate abuts against the aluminum busbar 41.

[0038] In one embodiment, the second connection assembly 5 includes a third connection member 52 and a fourth connection member 53, the third connection member 52 is arranged between the outgoing busbar on the regulating power cabinet 2 and the aluminum alloy tubular busbar 51, one end of the third connection member 52 is detachably connected to the outgoing busbar on the regulating power cabinet 2, and the other end of the third connection member 52 is detachably connected to the aluminum alloy tubular busbar 51; the fourth connection member 53 is arranged between the aluminum alloy tubular busbar 51 and the electrode plate on the reduction furnace 3, and one end of the fourth connection member 53 is detachably connected to the aluminum alloy tubular busbar 51. The busbar 51 is detachably connected, and the other end of the fourth connecting member 53 is detachably connected to the electrode plate on the reduction furnace 3; specifically, a third connecting member 52 is arranged between the outgoing busbar on the regulating power cabinet 2 and the aluminum alloy tubular busbar 51, and a fourth connecting member 53 is arranged between the electrode plate on the reduction furnace 3 and the aluminum alloy tubular busbar 51. By arranging the third connecting member 52 and the fourth connecting member 53, it is easier to adjust the overlap between the outgoing busbar on the power cabinet 2, the aluminum alloy tubular busbar 51 and the electrode plate on the reduction furnace 3.

[0039] In one embodiment, the outgoing busbar on the regulating power cabinet 2 includes a second outgoing copper busbar 22, the third connector 52 includes a third copper foil soft connector 521 and a third copper-aluminum connector 522, one end of the third copper foil soft connector 521 is detachably connected to the second outgoing copper busbar 22, the third copper-aluminum connector 522 is arranged between the other end of the third copper foil soft connector 521 and the aluminum alloy tubular busbar 51, and the other end of the third copper foil soft connector 521, the third copper-aluminum connector 522 and the aluminum alloy tubular busbar 51 are detachably connected; specifically, since the second outgoing copper busbar 22 is made of copper and the aluminum alloy tubular busbar 51 is made of aluminum alloy, in order to smoothly overlap the second outgoing copper busbar 22 and the aluminum alloy tubular busbar 51 to achieve conductivity, the third connector 52 includes a third copper foil soft connector 521 and a third copper-aluminum connector 522, and the second outgoing copper busbar 22. The third copper foil flexible connection 521, the third copper-aluminum connector 522 and the aluminum alloy tubular busbar 51 are connected in sequence. By setting the first copper foil flexible connection 421, it is easier to achieve line overlap. By setting the third copper-aluminum connector 522, the third copper foil flexible connection 521 and the aluminum alloy tubular busbar 51 can be avoided from direct contact, the galvanic cell reaction is eliminated, the line heating is reduced, the energy consumption can be effectively reduced, and it is more conducive to the conductive connection of the reduction furnace power busbar connection device 100; in this embodiment, the third copper foil flexible connection 521 has the same structure as the first copper foil flexible connection 421, the third copper-aluminum connector 522 has the same structure as the first copper-aluminum connector 422, and the third copper-aluminum connector 522 includes a third copper plate and a third aluminum plate connected to each other, the third copper plate abuts the third copper foil flexible connection 521, and the third aluminum plate abuts the aluminum alloy tubular busbar 51.

[0040] In one embodiment, the electrode plate on the reduction furnace 3 includes a copper electrode plate 31, and the fourth connector 53 includes a copper braided flexible connector 531 and a fourth copper-aluminum connector 532. One end of the copper braided flexible connector 531 is detachably connected to the copper electrode plate 31, and the fourth copper-aluminum connector 532 is arranged between the other end of the copper braided flexible connector 531 and the aluminum alloy tubular busbar 51. The other end of the copper braided flexible connector 531, the fourth copper-aluminum connector 532 and the aluminum alloy tubular busbar 51 are detachably connected. Specifically, since the copper electrode plate 31 is made of copper and the aluminum alloy tubular busbar 51 is made of aluminum alloy, in order to smoothly overlap the copper electrode plate 31 and the aluminum alloy tubular busbar 51 to achieve conductivity, the fourth connector 53 includes a copper braided flexible connector 531 and a fourth copper-aluminum connector 532. The aluminum alloy tubular busbar 51, the fourth copper-aluminum connector 532, the copper braided flexible connector 531 and the fourth copper-aluminum connector 532 are arranged between the other end of the copper braided flexible connector 531 and the aluminum alloy tubular busbar 51. The woven flexible connection 531 and the copper electrode plate 31 are connected in sequence. By setting the copper woven flexible connection 531, the vibration generated by the reduction furnace 3 can be eliminated. By setting the fourth copper-aluminum connector 532, the copper woven flexible connection 531 and the aluminum alloy tubular busbar 51 can be avoided from direct contact, thereby eliminating the galvanic cell reaction, reducing line heating, and effectively reducing energy consumption, which is more conducive to the conductive connection of the reduction furnace power busbar connection device 100. In this embodiment, the copper woven flexible connection 531 is tightly woven, and red copper with a purity of more than 99.9% can be used, and the current carrying capacity is 1.2 times that of the busbar. The fourth copper-aluminum connector 532 has the same structure as the first copper-aluminum connector 422. The fourth copper-aluminum connector 532 includes a fourth copper plate and a fourth aluminum plate connected to each other, the fourth copper plate abuts the copper woven flexible connection 531, and the fourth aluminum plate abuts the aluminum alloy tubular busbar 51.

[0041] In this embodiment, the connection method of the second connecting member 43 , the third connecting member 52 and the fourth connecting member 53 is the same as the connection method of the first connecting member 42 .

[0042] In one embodiment, the reduction furnace power bus connection device 100 also includes a first insulating sleeve (not shown in the figure), and the first insulating sleeve is arranged on the outer wall of the first connection component 4 and the aluminum busbar 41; specifically, by arranging the first insulating sleeve on the outer wall of the first connection component 4 and the aluminum busbar 41, it is possible to prevent debris from entering the interior of the first connection component 4 and the aluminum busbar 41, thereby avoiding a short circuit in the reduction furnace power bus connection device 100; in this embodiment, the first insulating sleeve can adopt a high-voltage insulating heat shrinkable sleeve, which complies with relevant standards of the electric power industry and can be used for a long time in an environment of -40°C to 125°C without cracking, and the high-voltage insulating heat shrinkable sleeve is made of flame retardant material with a withstand voltage of not less than 10kV, which can effectively ensure the stability of the operation of the reduction furnace power bus connection device 100.

[0043] In one embodiment, the reduction furnace power bus connection device 100 also includes a second insulating sleeve (not shown in the figure), and the second insulating sleeve is arranged on the outer wall of the second connection component 5 and the aluminum alloy tubular busbar 51; specifically, by arranging the second insulating sleeve on the outer wall of the second connection component 5 and the aluminum alloy tubular busbar 51, it is possible to prevent debris from entering the second connection component 5 and the aluminum alloy tubular busbar 51, thereby avoiding a short circuit in the reduction furnace power bus connection device 100; in this embodiment, the second insulating sleeve can adopt a high-voltage insulating heat shrinkable sleeve, which complies with relevant standards of the electric power industry and can be used for a long time in an environment of -40°C to 125°C without cracking, and the high-voltage insulating heat shrinkable sleeve is made of flame retardant material with a withstand voltage of not less than 35kV, which can effectively ensure the stability of the operation of the reduction furnace power bus connection device 100.

[0044] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A reduction furnace power bus connection device, characterized in that: The reduction furnace power bus connection device includes a transformer, a power regulating cabinet, a reduction furnace, a first connection component and a second connection component, the first connection component includes an aluminum busbar, the second connection component includes an aluminum alloy tubular busbar, the two ends of the aluminum busbar are respectively connected to the outgoing busbar on the transformer and the incoming busbar on the power regulating cabinet, and the two ends of the aluminum alloy tubular busbar are respectively connected to the outgoing busbar on the power regulating cabinet and the electrode plate on the reduction furnace.

2. The reduction furnace power bus connection device according to claim 1, characterized in that: The first connecting component also includes a first connecting member and a second connecting member, the first connecting member is arranged between the outgoing busbar on the transformer and the aluminum busbar, one end of the first connecting member is detachably connected to the outgoing busbar on the transformer, and the other end of the first connecting member is detachably connected to the aluminum busbar; the second connecting member is arranged between the aluminum busbar and the incoming busbar on the regulating power cabinet, one end of the second connecting member is detachably connected to the aluminum busbar, and the other end of the second connecting member is detachably connected to the incoming busbar on the regulating power cabinet.

3. The reduction furnace power bus connection device according to claim 2, characterized in that: The outgoing busbar on the transformer includes a first outgoing copper busbar, the first connector includes a first copper foil flexible connector and a first copper-aluminum connector, one end of the first copper foil flexible connector is detachably connected to the first outgoing copper busbar, the first copper-aluminum connector is arranged between the other end of the first copper foil flexible connector and the aluminum busbar, and the other end of the first copper foil flexible connector, the first copper-aluminum connector and the aluminum busbar are detachably connected.

4. The reduction furnace power bus connection device according to claim 3, characterized in that: The reduction furnace power bus connection device also includes a first fastener, which includes a first bolt and a first nut. A first mounting hole is provided on the first copper foil flexible connection, a second mounting hole is provided on the first copper-aluminum connector, and a third mounting hole is provided on the aluminum busbar. The first bolt passes through the first mounting hole, the second mounting hole and the third mounting hole and is threadedly connected to the first nut.

5. The reduction furnace power bus connection device according to claim 2, characterized in that: The incoming busbar on the regulating power cabinet includes an incoming copper busbar, and the second connecting piece includes a second copper foil flexible connecting piece and a second copper-aluminum connecting piece, one end of the second copper foil flexible connecting piece is detachably connected to the incoming copper busbar, and the second copper-aluminum connecting piece is arranged between the other end of the second copper foil flexible connecting piece and the aluminum busbar, and the other end of the second copper foil flexible connecting piece, the second copper-aluminum connecting piece and the aluminum busbar are detachably connected.

6. The reduction furnace power bus connection device according to claim 1, characterized in that: The second connecting component includes a third connecting member and a fourth connecting member. The third connecting member is arranged between the outgoing busbar on the regulating power cabinet and the aluminum alloy tubular busbar, one end of the third connecting member is detachably connected to the outgoing busbar on the regulating power cabinet, and the other end of the third connecting member is detachably connected to the aluminum alloy tubular busbar; the fourth connecting member is arranged between the aluminum alloy tubular busbar and the electrode plate on the reduction furnace, one end of the fourth connecting member is detachably connected to the aluminum alloy tubular busbar, and the other end of the fourth connecting member is detachably connected to the electrode plate on the reduction furnace.

7. The reduction furnace power bus connection device according to claim 6, characterized in that: The outgoing busbar on the regulating power cabinet includes a second outgoing copper busbar, the third connecting piece includes a third copper foil flexible connecting piece and a third copper-aluminum connecting piece, one end of the third copper foil flexible connecting piece is detachably connected to the second outgoing copper busbar, the third copper-aluminum connecting piece is arranged between the other end of the third copper foil flexible connecting piece and the aluminum alloy tubular busbar, and the other end of the third copper foil flexible connecting piece, the third copper-aluminum connecting piece and the aluminum alloy tubular busbar are detachably connected.

8. The reduction furnace power bus connection device according to claim 6, characterized in that: The electrode plate on the reduction furnace includes a copper electrode plate, and the fourth connecting piece includes a copper braided flexible connection and a fourth copper-aluminum connecting piece. One end of the copper braided flexible connection is detachably connected to the copper electrode plate, and the fourth copper-aluminum connecting piece is arranged between the other end of the copper braided flexible connection and the aluminum alloy tubular busbar. The other end of the copper braided flexible connection, the fourth copper-aluminum connecting piece and the aluminum alloy tubular busbar are detachably connected.

9. The reduction furnace power bus connection device according to any one of claims 1 to 8, characterized in that: The reduction furnace power busbar connection device also includes a first insulating sleeve, which is arranged on the first connecting component and the outer wall of the aluminum busbar.

10. The reduction furnace power bus connection device according to any one of claims 1 to 8, characterized in that: The reduction furnace power busbar connection device also includes a second insulating sleeve, which is arranged on the outer wall of the second connection component and the aluminum alloy tubular busbar.

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