CN117712964A - Fixed laying device and electric energy transmission system applied to wind power tower - Google Patents
Fixed laying device and electric energy transmission system applied to wind power tower Download PDFInfo
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- CN117712964A CN117712964A CN202311665050.7A CN202311665050A CN117712964A CN 117712964 A CN117712964 A CN 117712964A CN 202311665050 A CN202311665050 A CN 202311665050A CN 117712964 A CN117712964 A CN 117712964A
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Classifications
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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
- H02G5/08—Connection boxes therefor
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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
- H02G5/002—Joints between bus-bars for compensating thermal expansion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention relates to the technical field of electric energy transmission, in particular to a fixed laying device and an electric energy transmission system applied to a wind power tower. The fixed laying device comprises a base body, a bus structure and a pre-tightening structure, wherein the bus structure is stripped by adopting stranded conductors to form a fixed section and a power connection section respectively, so that the tensile strength of the bus structure is improved while power transmission is ensured. The two ends of the pre-tightening structure are respectively connected with the fixed section and the limit seat of the mounting structure of the matrix, and the power-on section is electrically connected with the switching terminal on the mounting seat to transmit electric energy. The pre-tightening structure has elasticity, so that the fixing section is elastically connected with the limiting seat, the elastic connection is used for adapting to the change of the longitudinal displacement of the bus structure during vertical wiring, the insulating protection layer of the bus structure is protected, the damage of local pulling or local stretching fracture caused by overlarge longitudinal displacement is avoided, the service life is relatively prolonged, and the safety guarantee is improved.
Description
Technical Field
The invention relates to the technical field of electric energy transmission, in particular to a fixed laying device and an electric energy transmission system applied to a wind power tower.
Background
Wind power generation is widely applied to all parts of the world as a high-efficiency pollution-free, economical and practical energy production mode. The electric energy generated by wind power generation is mainly transmitted through an electric energy transmission system, and the electric energy transmission system is generally arranged in a tower of the wind generating set.
In the related art, the structure of the cable type transmission system in the wind power tower mainly comprises cables, a wire clamp fixing structure, an adapter and the like, is vertically distributed in the tower along the tower wall, and is about 100 meters long from the tower top to the tower bottom. The cable is along the perpendicular wiring of tower wall, can make the cable influence by self gravity, expend with heat and contract with cold or the rocking of tower body influence have longitudinal displacement change, and longitudinal displacement change is too big can lead to the local impaired of insulating protection layer of cable, shortens life, serious or lead to local tensile fracture, exists the potential safety hazard.
Disclosure of Invention
The invention mainly aims to provide a fixed laying device, which aims to solve the technical problem that the service life is shortened due to abrasion or cable pulling caused by overlarge longitudinal displacement of vertical wiring in a wind power tower.
In order to achieve the above object, the present invention provides a fixed laying device, comprising:
the base body comprises a hanging structure and a mounting structure which are distributed up and down, the mounting structure comprises a mounting seat and a limiting seat, the limiting seat is positioned at one side of the mounting seat away from the hanging structure at intervals, and the mounting seat is used for mounting the switching terminal;
The bus structure is characterized in that one end of the bus structure is limited on the suspension structure, and the other end of the bus structure is provided with a power connection section and a fixing section, wherein the power connection section is used for electrically connecting the power connection terminal; and
The pre-tightening structure, pre-tightening structure one end is connected spacing seat, and the other end is connected fixed section, pre-tightening structure has elasticity, so that fixed section with spacing seat elastic connection.
In an embodiment of the invention, along an extending direction of the bus structure, the mounting seat is provided with a movable space in a penetrating manner, and an end of the pre-tightening structure, which is far away from the limiting seat, passes through the movable space to be connected with the fixed section.
In an embodiment of the present invention, the pre-tightening structure is provided with a guide hole, and an extension direction of the guide hole is parallel to an extension direction of the busbar structure;
the mounting seat is provided with a guide rod, the guide rod penetrates through the guide hole, and the extending direction of the guide rod and the extending direction of the guide hole are arranged at an included angle.
In one embodiment of the present invention, the pre-tightening structure includes:
the weight piece is movably arranged in the movable space in a penetrating mode, one end of the weight piece is connected with the fixed section, and the middle of the weight piece is provided with the guide hole; and
And one end of the elastic piece is connected with the limiting seat, and the other end of the elastic piece is connected with one end of the counterweight piece, which is far away from the fixed section.
In one embodiment of the present invention, the bus structure includes a plurality of stranded conductors, and each of the stranded conductors has an end formed with the fixing section and the power receiving section;
the pretightening structure is provided with pretightening assemblies corresponding to one stranded conductor, and two ends of each pretightening assembly are respectively connected with one fixing section and the limiting seat.
In one embodiment of the present invention, a plurality of the stranded conductors are arranged in parallel;
the pre-tightening structure comprises a plurality of pre-tightening assemblies corresponding to the stranded conductors;
the mounting seat further comprises a partition piece, the partition piece is provided with a plurality of partition protruding blocks, and each partition protruding block is clamped between two adjacent pre-tightening assemblies.
In one embodiment of the present invention, the fixing and laying device further includes a plurality of fixing assemblies corresponding to the plurality of stranded conductors, each of the fixing assemblies including:
a fixing member;
the first fixing clamp is arranged at one end of the fixing piece, and one end, far away from the fixing piece, of the first fixing clamp is connected with the fixing section; and
The second fixing clamp is arranged at the other end of the fixing piece, and one end, far away from the fixing piece, of the second fixing clamp is connected with the pre-tightening structure.
In an embodiment of the present invention, the fixed laying device further includes a protective cover, the protective cover is provided with a protective cavity, the protective cover is located at one end of the bus structure far away from the suspension structure, the mounting structure and the pre-tightening structure are located in the protective cavity, and one end of the bus structure extends into the protective cavity;
and/or along the length extending direction of the bus structure, the fixed laying device further comprises a plurality of side supporting structures which are distributed at intervals, and any side supporting structure is located between the hanging structure and the mounting structure.
In one embodiment of the invention, the protective cover comprises:
the protection plate is arranged facing the suspension structure and provided with an avoidance hole; and
the protection network is connected to the periphery of the protection plate, and encloses with the protection plate to form a protection cavity, the mounting structure with the pretension structure is all located the protection intracavity, the one end of generating line structure is passed through dodge the hole and stretch into the protection intracavity.
The invention also provides an electric energy transmission system applied to the wind power tower, the wind power tower comprises a tower barrel, the tower barrel is provided with a tower cavity, and the electric energy transmission system comprises:
the energy storage end is arranged in the tower cavity; and
the fixed laying device according to any one of the above claims, wherein the fixed laying device is arranged on the inner wall of the tower cavity, and the fixed laying device is connected with the energy storage end through the switching terminal.
The fixed laying device comprises a base body, a bus structure and a pre-tightening structure, wherein the bus structure is stripped by adopting stranded conductors to respectively form a fixed section and a power connection section, so that the tensile strength of the bus structure is improved while power transmission is ensured. The two ends of the pre-tightening structure are respectively connected with the fixed section and the limit seat of the mounting structure of the matrix, and the power-on section is electrically connected with the switching terminal on the mounting seat to transmit electric energy. The pre-tightening structure has elasticity, so that the fixing section is elastically connected with the limiting seat, the elastic connection is used for adapting to the change of the longitudinal displacement of the bus structure during vertical wiring, the insulating protection layer of the bus structure is protected, the damage of local pulling or local stretching fracture caused by overlarge longitudinal displacement is avoided, the service life is relatively prolonged, and the safety guarantee is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a structure in which a fixing and laying device according to an embodiment of a wind power tower of the present invention is mounted on a tower drum;
FIG. 2 is a schematic view of an assembled structure of two ends of a bus bar assembly according to an embodiment of the present invention;
FIG. 3 is a schematic diagram showing an assembled structure of two ends of a twisted wire conductor according to an embodiment of the fixed laying apparatus of the present invention;
FIG. 4 is a schematic view of a hanging end structure of an embodiment of the fixed-line laying apparatus of the present invention;
FIG. 5 is a schematic view of an assembly structure of a suspension structure and a bus bar assembly according to an embodiment of the present invention;
FIG. 6 is a schematic view of a hanging end of an embodiment of a wind power tower according to the present invention assembled to a tower;
FIG. 7 is a schematic view of a pre-tightening end of an embodiment of a wind power tower according to the present invention assembled to a tower;
FIG. 8 is a schematic view of the pre-tightening structure and bus bar assembly structure of an embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating a structure in which a pre-tightening end of an embodiment of an electrical power transmission system according to the present invention is assembled to a tower;
FIG. 10 is a schematic view of a portion of a pretensioning structure of an embodiment of a fixed installation of the present invention;
FIG. 11 is a schematic top view of a pre-tightening structure of an embodiment of the fixed-line laying apparatus of the present invention;
FIG. 12 is a schematic diagram of a side support structure and bus bar structure assembled to a tower according to an embodiment of the wind power tower of the present invention.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Fixed laying device | 30 | Mounting structure | 50 | Bus structure |
| 10 | Suspension structure | 31 | Mounting base | 51 | Stranded conductor |
| 11 | Support frame | 31A | Movable space | 511 | Power connection section |
| 12 | First fixing plate | 311 | Mounting rack | 512 | Fixing section |
| 13 | Second fixing plate | 312 | Cantilever arm | 513 | Connecting section |
| 14 | Locking assembly | 313 | Guide rod | 514 | Locking segment |
| 141 | Steering rod | 315 | Partition piece | 55 | Protective sleeve |
| 142 | Third fixing clamp | 3151 | Separation bump | 551 | Single core sleeve |
| 143 | Locking shaft | 316 | Limiting clamping plate | 552 | Double-core sleeve |
| 15 | Suspension assembly | 32 | Spacing seat | 40 | Protective cover |
| 151 | Suspension shaft | 321 | Limiting rod | 40A | Protective cavity |
| 152 | Suspension ring | 70 | Pre-tightening structure | 40B | Avoidance hole |
| 153 | Spacing sleeve | 71 | Weight piece | 41 | Protection plate |
| 154 | Twisted wire clip | 71A | Guide hole | 42 | Protective net |
| 60 | Fixing assembly | 72 | Elastic piece | 80 | Switching assembly |
| 61 | Fixing piece | 90 | Side support structure | 81 | Soft connecting wire |
| 62 | First fixing clamp | 91 | Side support | 82 | Switching terminal |
| 63 | Second fixing clamp | 92 | Side support shaft | 93 | Grooved wheel |
| 200 | Wind power tower | 20 | Tower drum |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Wind power generation is widely applied to all parts of the world as a high-efficiency pollution-free, economical and practical energy production mode. The electric energy generated by wind power generation is mainly transmitted through an electric energy transmission system, and the electric energy transmission system is generally arranged in a tower of the wind generating set.
In the related art, the structure of the cable type transmission system in the wind power tower mainly comprises cables, a wire clamp fixing structure, an adapter and the like, is vertically distributed in the tower along the tower wall, and is about 100 meters long from the tower top to the tower bottom. The cable is along the perpendicular wiring of tower wall, can make the cable influence by self gravity, expend with heat and contract with cold or the rocking of tower body influence have longitudinal displacement change, and longitudinal displacement change is too big can lead to the local impaired of insulating protection layer of cable, shortens life, serious or lead to local tensile fracture, exists the potential safety hazard.
The invention provides a fixed laying device 100, wherein the fixed laying device 100 is used for installing and fixing a wind power bus structure 50 and a tower drum 20.
Referring to fig. 1 to 12, fig. 1 is a schematic structural view of a fixed laying apparatus 100; fig. 2 to 6 are schematic views showing the structure in which the hanging end of the bus bar structure 50 is assembled to the tower 20; fig. 7 to 11 are schematic views showing the structure in which the pre-tightening end of the bus bar structure 50 is assembled to the tower 20; fig. 12 is a schematic view of the assembly of the side rail structure 90 and the bus bar structure 50 to the tower 20.
In the embodiment of the present invention, the fixed-line installation 100 includes a substrate (not shown), a bus bar structure 50, and a pre-tightening structure 70, as shown in fig. 1-4 and 7-9; the base member includes suspension 10 and the mounting structure 30 of upper and lower distribution, and mounting structure 30 includes mount pad 31 and spacing seat 32, and spacing seat 32 interval is located the one side that suspension 10 was kept away from to mount pad 31, and mount pad 31 is used for installing adapter terminal 82. One end of the bus structure 50 is limited to the suspension structure 10, and the other end is provided with a power connection section 511 and a fixing section 512, wherein the power connection section 511 is used for electrically connecting with a power connection terminal. One end of the pre-tightening structure 70 is connected with the limiting seat 32, and the other end is connected with the fixing section 512, and the pre-tightening structure 70 has elasticity, so that the fixing section 512 is elastically connected with the limiting seat 32.
In this embodiment, the fixing and laying device 100 includes a base body, a bus bar structure 50 and a pre-tightening structure 70, and the bus bar structure 50 is provided with a fixing section 512 and a power receiving section 511 respectively, so that the tensile strength of the bus bar structure 50 is improved while ensuring power transmission. The base member includes suspension 10 and the mounting structure 30 of upper and lower distribution, and mounting structure 30 includes mount pad 31 and spacing seat 32, and spacing seat 32 interval is located the one side that the mount pad 31 kept away from suspension 10. The mounting seat 31 is used for mounting the switching terminal 82, the electric terminal is electrically connected with the electric connection section 511, one end of the pre-tightening structure 70 is connected with the limit seat 32, and the other end is connected with the fixing section 512. The pre-tightening structure 70 has elasticity, so that the fixing section 512 is elastically connected with the limiting seat 32, the elastic connection is used for adapting to the change of the longitudinal displacement of the bus structure 50 during vertical wiring, the insulating protection layer of the bus structure 50 is protected, the damage of local pulling or local stretching fracture caused by overlarge longitudinal displacement is avoided, the service life is relatively prolonged, and the safety guarantee is improved.
The length extending direction when the bus bar structure 50 is wired is defined as a Z axis, the wiring width direction of the bus bar structure 50 is defined as an X axis, the directions perpendicular to the Z axis and the X axis are the Y axis, the intersection of the X axis, the Y axis and the Z axis three axes is an origin O point, and the three axes and the origin O point together form a space rectangular coordinate system O-XYZ, and the description of each embodiment is made using the coordinate system as an azimuth standard.
It should be noted that, the bus structure 50 of the fixing and laying device 100 of the present invention is applied to a wind power transmission system, and the wind power transmission system needs to transmit electric energy in three-phase or six-phase modes, and the bus structure 50 is illustratively three-phase arrangement or doubly-fed six-phase arrangement, and the number of wirings of the bus is set according to the transmission mode.
In one embodiment of the present invention, the bus structure 50 includes a plurality of twisted wire conductors 51, and a fixing section 512 and a power receiving section 511 are formed at an end of each twisted wire conductor 51; the pretensioning structure 70 is provided with a pretensioning assembly corresponding to a twisted wire conductor 51, and two ends of each pretensioning assembly are respectively connected with a fixing section 512 and a limiting seat 32.
In this embodiment, the busbar arrangement 50 includes a plurality of busbar assemblies, each of which includes a plurality of stranded conductors 51, and the stranded conductors 51 may illustratively be formed of a plurality of steel-cored aluminum strands arranged side-by-side.
Each steel-cored aluminum stranded wire is formed by stranding single-layer or multi-layer aluminum-cored coated steel cores, each stranded wire conductor 51 adopts a stranding structure of aluminum wires coated with the steel cores, the structure can ensure the structural strength of a hanging part of the steel-cored aluminum stranded wire, aluminum wires and the steel cores are used for guiding flow together, and the temperature rise of the aluminum cable is lower than that of an aluminum cable with the same sectional area conductor. The steel-cored aluminum strand body is provided with an insulating layer, the end part of each steel-cored aluminum strand is stripped to form a steel core serving as a fixed section 512, and the rest of aluminum cores serving as a power connection section 511.
The pretightening structure 70 is provided with a pretightening component corresponding to a twisted wire conductor 51, the pretightening components are used for respectively elastically connecting the twisted wire conductors 51 of the bus structure 50, the fixing section 512 of each twisted wire conductor 51 is elastically connected and pretightened on the limiting seat 32 through each pretightening component, the pretightening component can effectively prevent the steel-cored aluminum strand from shaking violently, the bottom of the steel-cored aluminum strand is weighted and is applied with pretightening force, the vibration intensity of the tail end is reduced, the shaking amplitude is limited, and the stripped power receiving section 511 can be electrically connected with the energy storage end to realize stable electric energy transmission.
Further, the aluminum core is formed by twisting a plurality of aluminum wires, and the steel core can also be formed by twisting a plurality of steel wires, so that the structural strength of the aluminum core and the steel core is enhanced. One end of any twisted wire conductor 51, which is far away from the mounting structure 30, is arranged on the suspension structure 10, and the steel core aluminum twisted wire is stripped to form a steel core as a locking section 514, and the rest aluminum cores are used as connecting sections 513.
As shown in connection with fig. 2-6, with respect to the suspension of one end of the stranded conductor 51, the suspension structure 10 comprises a bracket 11, a first fixing plate 12, a second fixing plate 13, a locking assembly 14 and a suspension assembly 15. The support 11 is a hollow frame, and the hollow frame can protect the stranded conductor 51 and is convenient for ventilation, heat dissipation, installation and maintenance. A hanging space is formed on the bracket 11, the first fixing plate 12 is arranged at the bottom of the bracket 11 and is positioned in the hanging space, and the first fixing plate 12 is used for fixing the unpeeled steel-cored aluminum stranded wire. The second fixing plate 13 is provided on the top of the bracket 11 and outside the frame for fixing the peeled aluminum stranded wire so as to facilitate connection with the outside.
The suspension assembly 15 is used for suspending and fixing the plurality of groups of busbar assemblies along the X-axis direction. The suspension structure 10 adopts a mode of jointly suspending the aluminum core and the steel core, so that the insulation layer damage and conductor settlement phenomenon of the aluminum stranded wire with the steel core can be avoided, and core pulling is also avoided.
The suspension assembly 15 includes a suspension shaft 151, a plurality of suspension rings 152, and a plurality of spacers 153, wherein the suspension shaft 151 extends along the X-axis direction and is disposed on the support 11, the suspension rings 152 are in the shape of a ring of water drops, the suspension rings 152 are disposed on the suspension shaft 151 along the X-axis direction, and the spacers 153 are disposed between two adjacent suspension rings 152. The suspension shaft 151, the suspension ring 152, the spacer 153, and the like are preferably made of stainless steel, so that electromagnetic heating can be prevented.
The suspension shaft 151 may be a shaft disposed along the X-axis direction, or may be a suspension shaft 151 corresponding to each busbar assembly, and the shafts of the suspension shafts 151 may be disposed end to end in sequence along the X-axis direction. A plurality of suspension rings 152 and spacer sleeves 153 are correspondingly arranged on one suspension shaft 151, and the number of the suspension rings 152 is corresponding to the number of the steel wire aluminum stranded wires. The ends of each steel-cored aluminum strand extend in the Z-axis direction, and are then turned 180 ° around the suspension ring 152 by the drop-shaped suspension ring 152 at the suspension structure 10 to peel off the ends after bypassing the suspension ring 152 to form a locking section 514 of the steel core and a connecting section 513 of the aluminum core.
Each suspension ring 152 is provided with a suspension groove around the outer side of the suspension shaft 151, the suspension groove is a water drop-shaped annular groove, the suspension groove is arranged to accommodate the stranded wire conductor 51 suspended on the suspension ring 152, so that the stranded wire conductor 51 is accommodated in the suspension groove for wire protection, the movement of the stranded wire conductor 51 along the X-axis direction can be limited, and the suspension stability is improved. The spacer 153 is made of insulating materials, so that the plurality of suspension rings 152 can be spaced apart to improve the electrical insulation performance of the adjacent steel-cored aluminum stranded wires, and the relative positions of the plurality of suspension rings 152 can be positioned and limited to improve the suspension stability.
The suspension assembly 15 further includes a plurality of wire clamps 154, the plurality of wire clamps 154 being used to secure the overlapping doubled-up portions of each wire conductor 51 after being hung around the suspension loops 152 to strip the ends of the wire conductors 51 after overlapping doubling.
The locking assembly 14 is used to secure the steel core after stripping. The locking assembly 14 includes a steering rod 141, a locking shaft 143, and a plurality of third fixing clips 142. The steering rod 141 and the locking rod are detachably arranged on the bracket 11 along the X axis respectively, the steering rod 141 is adjacent to a stranded wire clamp 154 at the lowest position after suspension and wire doubling, the free end of the stranded wire conductor 51 after wire doubling is stripped to form a steel core as a locking section 514, the steel core of the locking section 514 turns around the steering rod 141, the steel core after turning is arranged at an included angle with the original wire doubling direction, and the steel core after turning is wound on the locking shaft 143 through a third fixing clamp 142.
The plurality of bus bar assemblies may use a locking shaft 143, or may be a group of locking shafts 143 corresponding to one locking shaft 143, and the plurality of locking shafts 143 are sequentially arranged end to end along the X-axis direction. A locking shaft 143 is used to lock the steel cores of the plurality of locking segments 514, one steel core being locked by a third retaining clip 142. One end of each third fixing clip 142 is connected to the locking shaft 143, and the other end is connected and fixed to the turned steel core to lock and fix the separated locking segments 514 by the steering rod 141, the third fixing piece 61, and the locking shaft 143.
It can be appreciated that the third fixing clip 142 and the first fixing clip 62 and the second fixing clip 63 described below are rope clips, so that the tightening degree of the steel core can be relatively adjusted, and the fixing stability can be improved.
Further, at the suspension structure 10, the support 11 is provided with a plurality of support arms extending along the Y-axis direction, the plurality of support arms are arranged on the support 11 at intervals to form a plurality of spaces for suspension, and the plurality of support arms are used for connecting and fixing the suspension shaft 151, the steering shaft and the locking shaft 143, so that the effectiveness and reliability of the suspension function are improved.
The hanging state is that the free end of the unpeeled steel-cored aluminum strand (the strand conductor 51) passes through the first fixing plate 12 along the Z axis from the bottom of the bracket 11 and then enters the hanging space. The free end is hung on the suspension shaft 151 around the suspension ring 152 after entering the suspension space, so that the free end turns 180 degrees to extend reversely to the Z axis, and the turned free end is overlapped and combined with the wire of the original stranded conductor 51. After overlapping and doubling, the free ends of the aluminum core connecting sections are stripped to form a locking section 514 and a connecting section 513, the locking section 514 is locked by the locking assembly 14, the locking direction is approximately perpendicular to the Z-axis direction, the stripped aluminum core connecting section 513 continues to extend reversely in the forward direction in the Z-axis direction and penetrates through the second fixing plate 13 to be relatively fixed, and the end part of the aluminum core connecting section 513 transmits one side of the second fixing plate 13, which is away from the hanging space, to be electrically connected with external connection.
Further, after the aluminum core and the steel core at the two ends of any twisted wire conductor 51 of the bus assembly are stripped, a protective sleeve 55 needs to be arranged, the protective sleeve 55 can be a single core sleeve 551 or a double core sleeve 552, and the protective sleeve 55 is illustratively a heat shrink tube or a two-core heat shrink finger sleeve, the single core heat shrink tube is sleeved on the separated aluminum core or steel core, and the intersection of the aluminum core and the steel core can be assembled by adopting the two-core heat shrink finger sleeve, so that the conductor is not exposed, and insulation protection is provided.
It should be noted that, the electric energy generated by the wind generating set of the electric energy transmission system is transmitted from the top of the tower 20 to the energy storage end at the bottom of the tower 20 through the bus structure 50 and the fixed laying device 100. The bottom of the pre-tightening structure 70 is fixed on the limiting seat 32, so that the pre-tightening and anti-shake effects are achieved on the whole steel-cored aluminum strand. The aluminum core is connected with the energy storage end through the switching terminal 82, and the electric energy transmission operation of the whole wind power generation electric energy transmission system is completed.
The pretensioning with respect to the other end of the stranded conductor 51 is installed and fixed by the pretensioning structure 70.
Referring to fig. 1 and fig. 7-9 in combination, in an embodiment of the invention, along the extending direction of the bus bar structure 50, the mounting seat 31 is provided with a movable space 31A therethrough, and an end of the pre-tightening structure 70 away from the limiting seat 32 passes through the movable space 31A to connect with the fixed section 512.
In this embodiment, the mounting seat 31 is a hollow structure, and the mounting seat 31 includes a mounting frame 311, a cantilever 312, a partition 315 and a limiting clamp 316, so that the mounting seat 31 can enclose to form a through movable space 31A. The length of the busbar structure 50 extends along the Z-axis, and the plurality of busbar assemblies are arranged along the X-axis. The mounting bracket 311 is detachably fixed on the tower 20 of the wind power equipment, the cantilever 312 is convexly arranged on the mounting bracket 311 along the Y-axis direction, and the partition 315 and the limiting clamp 316 are detachably fixed on the cantilever 312 at intervals. The cantilever 312 can be provided in a plurality, and the plurality of cantilever 312 are arranged at intervals to divide the movable space 31A into a plurality of spaces distributed along the X-axis, so that the plurality of bus assemblies can be respectively connected at two ends and limited to the plurality of cantilever 312, and the connection stability of each bus assembly is improved.
The free end of the bottom of each twisted wire conductor 51 of the busbar structure 50 is stripped to form a power receiving section 511 and a fixed section 512, and the movable space 31A along the Z-axis direction is a space for accommodating only the fixed section 512 relatively movably, or may be a space for accommodating the whole pre-tightening structure 70. The mounting seat 31 can be used for mounting the adapter terminal 82, and can also provide a movable space 31A to enable the pretightening structure 70 to be connected with the fixing section 512 in a fine-tuning manner.
Taking the example of accommodating the fixed section 512 only, the stranded conductor 51 is stripped out of the power receiving section 511 and the fixed section 512 before extending downward in the Z-axis direction and not entering the movable space 31A, and the pre-tightening structure 70 is spaced on a side of the mounting base 31 away from the suspension structure 10 in the Z-axis direction. One end of the pre-tightening structure 70 is elastically connected to the limiting seat 32, and the other end is connected to the fixing section 512. The adaptor assembly 80 is detachably disposed on the limiting clamping plate 316, and the adaptor assembly 80 is used for connecting the power connection section 511 stripped by the stranded conductor 51 so as to conduct the current of the stranded conductor 51.
As shown in connection with fig. 7-9, further, the transit assembly 80 includes transit terminals 82 and flexible connection wires 81, the transit terminals 82 being rigid. The two limiting clamping plates 316 are arranged, the two limiting clamping plates 316 are arranged on the upper side and the lower side of the cantilever 312 along the Z axis, the switching terminal 82 is clamped and limited on the two limiting clamping plates 316, two ends of the switching terminal 82 are exposed, one exposed end of the switching terminal 82 is detachably and electrically connected with the flexible connecting wire 81, and the other end of the switching terminal 82 is used for connecting an energy storage end to conduct out current of the stranded wire conductor 51. One end of the flexible connecting wire 81, which is far away from the transfer terminal 82, is detachably and electrically connected with the aluminum core power connection section 511 of the stranded wire conductor 51, the flexible connecting wire 81 is provided with elastic stretching allowance, so that the power connection section 511 and the transfer terminal 82 are provided with a certain stretching allowance through the flexible connecting wire 81, the flexible connecting wire 81 can adapt to longitudinal displacement change of a steel core aluminum stranded wire caused by expansion and contraction and tower body shaking, the tower body shaking or swinging of the stranded wire conductor 51 along an X axis or a Y axis causes a certain length stretching amount of the steel wire aluminum stranded wire in the Z axis direction, and the stretching allowance of the flexible connecting wire can be opposite to the length stretching amount caused by shaking or swinging, so that the reliability of the power connection section 511 in guiding out current to the transfer terminal 82 is improved.
Further, at the installation position of the pre-tightening structure 70, two spacers 315 of the mounting seat 31 are spaced and arranged in parallel along the Y-axis direction, or one spacer 315 and one limiting clamp 316 of the mounting seat 31 are spaced and arranged in parallel along the Y-axis direction, the pre-tightening structure 70 passes through a gap between the two spacers 315 or the spacer 315 and the limiting clamp 316, and the pre-tightening structure 70 is relatively movably arranged between the gaps along the Z-axis. One end of the pre-tightening structure 70 is connected with the elastic limit seat 32, the other end of the pre-tightening structure is connected with the fixing section 512, the elastic connection between the pre-tightening structure 70 and the limit seat 32 enables the fixing section 512 to have a certain movement allowance along the Z-axis direction, so that the length of the Z-axis direction is expanded and contracted due to the swinging of the opposite-punching stranded wire conductor 51, namely, the longitudinal displacement change of the opposite-punching bus structure 50 during vertical wiring is avoided when the pre-tightening force is installed on the bus structure 50, the insulating protection layer of the bus structure 50 is protected, the damage caused by local pulling or local tensile fracture due to the overlarge longitudinal displacement is avoided, the service life is relatively prolonged, and the setting stability, the electric transmission reliability and the safety guarantee of the bus structure 50 are improved.
Referring to fig. 7-11 in combination, in one embodiment of the present invention, the pre-tightening structure 70 is provided with a guide hole 71A, and the extending direction of the guide hole 71A is parallel to the extending direction of the bus bar structure 50; the mounting seat 31 is provided with a guide rod 313, the guide rod 313 penetrates through the guide hole 71A, and the extending direction of the guide rod 313 and the extending direction of the guide hole 71A form an included angle.
In this embodiment, the mounting base 31 is provided with a guide rod 313, the guide rod 313 is located on a moving path of the moving space 31A along the Z axis, the pre-tightening structure 70 is provided with a guide hole 71A, the length extending direction of the guide hole 71A is in the Z axis direction, and the extending direction of the guide rod 313 is in the X axis direction, so that the guide rod 313 is inserted into the guide hole 71A along the X axis. When the bus structure 50 relatively displaces along the Z-axis direction, the pre-tightening structure 70 moves up and down along the Z-axis relative to the guide rod 313, so that the guide rod 313 moves up and down relatively in the guide hole 71A extending along the Z-axis direction, and two ends of the guide hole 71A in the length direction are used for absolute limiting the up-and-down movement displacement of the pre-tightening structure 70, so that the pre-tightening structure 70 can adjust the extension displacement of the bus structure 50 along the Z-axis direction by a certain movement allowance.
When the swing margin of the bus structure 50 is larger, the guide rod 313 abuts against the lowermost end of the guide hole 71A along the Z axis, so that the guide rod 313 relatively limits the movement of the pre-tightening structure 70, and the pre-tightening force of the pre-tightening structure 70 on the bus structure 50 is increased, so that the bus structure 50 can be straightened as soon as possible and reliably due to the swing of the bus structure 50, and the wiring stability of the bus structure 50 is improved.
When the bus structure 50 moves downwards along the Z axis, the guide rod 313 abuts against the uppermost end of the guide hole 71A along the Z axis, so that the guide rod 313 can relatively limit the downward movement of the pre-tightening structure 70, and simultaneously can also support and limit the pre-tightening structure 70, reduce the pulling force of the wire weight of wiring on the bus structure 50, prevent the bus structure 50 from sagging without lower limit, avoid the excessive sagging displacement from causing pulling or breaking of tearing properties on the outer insulating layer of the bus structure 50, and improve the wiring stability of the bus structure 50.
In one embodiment of the present invention, a plurality of stranded conductors 51 are arranged in parallel; the pretensioning structure 70 includes a plurality of pretensioning members corresponding to the plurality of stranded conductors 51; the mounting seat 31 further includes a partition member 315, where the partition member 315 is provided with a plurality of partition protrusions 3151, and each partition protrusion 3151 is clamped between two adjacent pretensioning components.
In this embodiment, a plurality of busbar assemblies of the busbar structure 50 are disposed on the substrate along the Z-axis direction, where each busbar assembly includes a plurality of stranded conductors 51 disposed in parallel along the X-axis. The pretensioning structure 70 is provided with a pretensioning element corresponding to a twisted wire conductor 51. The mount pad 31 is equipped with the spacer block towards one side of activity space 31A to the spacer 315 that sets up on cantilever 312, i.e. spacer 315 is equipped with the spacer block towards one side of pretension subassembly, adjacent two pretension subassemblies are separated by a spacer block, or each pretension subassembly is spacing by the spacer block along the both sides of X axle direction, avoid pretension subassembly along the relative displacement of X axle, can also avoid the relative interference of adjacent two pretension subassemblies along the X axle, make pretension subassembly can promote the connection pretightning force of the fixed section 512 of connecting stranded conductor 51, can also avoid mutual interference to ensure electrical insulation, more can avoid twining each other, make bus bar structure 50 wiring neat, stable and promote bus bar structure 50's electrical transmission safety guarantee.
Further, each pre-tightening assembly is provided with a guiding strip-shaped hole, and a guiding rod 313 can be sequentially arranged in the strip-shaped holes of the pre-tightening assemblies at intervals along the X axis in a penetrating manner, so that the Z-axis pre-tightening guiding displacement of the plurality of stranded wire conductors 51 belonging to the same bus assembly is synchronously guided and synchronously limited through the guiding rod 313, the bus pre-tightening synchronism is improved, and the possibility of excessive stretching or tearing of the single or the plurality of stranded wire conductors 51 is avoided.
In an embodiment of the present invention, the fixing and laying apparatus 100 further includes a plurality of fixing assemblies 60 corresponding to the plurality of stranded conductors 51, each fixing assembly 60 includes a fixing member 61, a first fixing clip 62 and a second fixing clip 63, the first fixing clip 62 is disposed at one end of the fixing member 61, one end of the first fixing clip 62 away from the fixing member 61 is connected to the fixing section 512, the second fixing clip 63 is disposed at the other end of the fixing member 61, and one end of the second fixing clip 63 away from the fixing member 61 is connected to the pre-tightening structure 70.
In this embodiment, the bus structure 50 is detachably connected to the pretensioning assembly through a fixing section 512 stripped from the end of the pretensioning force by a plurality of stranded conductors 51, and the detachable structure is a fixing assembly 60. The fixing and laying device 100 further includes a plurality of fixing assemblies 60 corresponding to the plurality of stranded conductors 51, and the first fixing clip 62 and the second fixing clip 63 of each fixing assembly 60 are respectively connected to two ends of the fixing member 61 along the Z-axis direction.
The first fixing clip 62 is used for detachably connecting the fixing sections 512 of the steel core, and the second fixing clip 63 is used for detachably connecting a pre-tightening assembly. The first fixing clamp 62 and the second fixing clamp 63 can be both set as rope clamps, the two ends of the fixing piece 61 are respectively provided with a fixing groove, one end of the first fixing clamp 62, which is far away from the fixing section 512, is fixedly penetrated into the fixing groove through a pin or a screw, and one end of the second fixing clamp 63, which is far away from the pre-tightening assembly, is fixedly penetrated into the other fixing groove through the pin or the screw, so that the steel core fixing section 512 is detachably connected with the pre-tightening assembly, and simultaneously, the fixing section 512 and the pre-tightening assembly can be subjected to pre-tightening tension and pre-tightening degree adjustment through the first fixing clamp 62 or the second fixing clamp 63 under the condition of connection through the fixing assembly 60, so that the pre-tightening force can be adjusted as required.
In an embodiment of the present invention, the pre-tightening structure 70 includes a weight member 71 and an elastic member 72, the weight member 71 movably penetrates through the movable space 31A, one end of the weight member 71 is connected to the fixing section 512, and a guide hole 71A is formed in the middle of the weight member 71. One end of the elastic member 72 is connected to the limiting seat 32, and the other end of the elastic member 72 is connected to one end of the weight member 71 away from the fixed section 512.
In this embodiment, the pre-tightening structure 70 includes a plurality of pre-tightening assemblies arranged at intervals along the X-axis direction, and each pre-tightening assembly is disposed corresponding to one twisted wire conductor 51. A pretension assembly comprises a weight 71 and an elastic member 72, wherein the weight 71 movably passes through the movable space 31A, one end of the weight 71 is connected with the fixed section 512 through the second fixing clamp 63 of the fixed assembly 60, and the other end of the weight 71 is detachably connected with the elastic member 72, and the elastic connection enables the Z-axis movement of the stranded conductor 51 to be finely adjusted. One end of the elastic member 72 away from the weight member 71 is connected to the limiting seat 32, and the elastic member 72 is also detachably connected to the limiting seat 32. The balancing weight is used for balancing the bottom of the steel-cored aluminum strand and applying pretightening force, and the elastic piece 72 is matched with the balancing weight to reduce the vibration intensity of the tail end of the stranded conductor 51, so that the steel-cored aluminum strand is prevented from shaking severely, and the shaking amplitude is limited.
It will be appreciated that the elastic member 72 may be configured as an elastic structure such as a spring, a rubber strip, or an elastic expansion cord, and when the wiring length of the bus structure 50 is sufficiently long, the elastic member 72 is preferably a spring, and the spring has a large elastic coefficient, a high pre-tightening tensile strength, a stable structure, and a definite stretch and rebound stroke, and is not easily deformed.
Further, the limiting seat 32 is detachably disposed on the tower 20, and the limiting seat 32 is used for fixing the bottom of the limiting pre-tightening structure 70. The limiting seat 32 comprises a seat frame and a limiting shaft arranged on the seat frame. The seat frame is detachably arranged on the tower 20, and the limiting shaft extends along the X-axis direction and is detachably connected to the seat frame. One end of the spring of the elastic piece 72 can be connected with a limiting shaft through a hook fire hanging ring, and a plurality of elastic pieces 72 can be hung on the limiting shaft along the X-axis direction.
In an embodiment, a plurality of annular grooves are formed in the peripheral wall of the limiting shaft, the annular grooves are used for limiting the movement of the X-axis of one end of the limiting shaft, which is connected with the plurality of elastic pieces 72 in a hanging mode, the reliability of hanging limiting is improved, the plurality of stranded wire conductors 51 of each busbar assembly are independently distributed from top to bottom, and winding obstruction is avoided.
It is understood that the locking shaft 143, the steering rod 141, the weight 71, the guide rod 313, the spacer 315, the limiting clamp 316, and the limiting rod 321 are made of insulating materials, such as hard plastics or glass, for example, the locking shaft 143 and the guide rod 313 may be made of glass fiber reinforced plastic for insulation. The suspension contact portion and the fixing assembly 60 are made of anti-magnetic materials, and the rope clamps serving as the first, second and third fixing clamps 142 and the stranded wire clamp 154 are made of anti-magnetic stainless steel materials, and the suspension shaft 151 and the suspension ring 152 are made of anti-magnetic stainless steel materials, so that the structural strength of the connection or contact portion can be enhanced, and electromagnetic heating can be prevented.
In an embodiment of the present invention, the fixed installation device 100 further includes a protective cover 40, the protective cover 40 is provided with a protective cavity 40A, the protective cover 40 is located at an end of the bus bar structure 50 away from the suspension structure 10, the mounting structure 30 and the pre-tightening structure 70 are disposed in the protective cavity 40A, and an end of the bus bar structure 50 extends into the protective cavity 40A.
In this embodiment, the protection cover 40 is disposed at one end of the bus structure 50 connected to the pre-tightening structure 70, and the protection cover 40 is detachably connected to the tower 20 of the wind turbine generator. The protection cover 40 is provided with a protection cavity 40A, the installation seat 31 and the limit seat 32 of the installation structure 30 are both accommodated in the protection cavity 40A, and the pre-tightening structure 70 movably penetrates through the movable space 31A of the installation seat 31 and is positioned in the protection cavity 40A. One end of the bus structure 50 extends into the protection cavity 40A, the protection cover 40 is a stainless steel cover body at least provided with a part of hollow parts, the protection cavity 40A is formed to be used for protecting an output current end of the bus structure 50, the power transmission safety is improved, and the hollow holes are convenient for heat dissipation.
It will be appreciated that the outer side of the suspension structure 10 may also be correspondingly provided with a protective cover 40.
In an embodiment of the present invention, the protection cover 40 includes a protection plate 41 and a protection net 42, the protection plate 41 is disposed facing the suspension structure 10, and the protection net 42 is connected to a peripheral side of the protection plate 41 and encloses the protection plate 41 to form a protection cavity 40A. The mounting structure 30 and the pre-tightening structure 70 are both arranged in the protection cavity 40A, the protection plate 41 is provided with an avoidance hole 40B, and one end of the bus structure 50 extends into the protection cavity 40A through the avoidance hole 40B.
In this embodiment, the protection cover 40 includes a protection plate 41 located at the top and a plurality of protection nets 42 installed around the protection plate 41, where the protection plate 41 and the protection nets 42 may be integrally formed, and only the protection cover 40 formed integrally is detachably connected with the tower 20. Or, the plurality of protection nets 42 are detachably installed with the protection plates 41, respectively, so that the sizes and the number of the protection plates 41 and the protection nets 42 can be set as required. Or, the plurality of protection nets 42 may be integrally formed, at least one protection net 42 and the protection plate 41 enclose to form the protection cavity 40A, and the protection cover 40 may further be integrally formed with a plurality of protection nets 42 to form a plurality of protection cavities 40A, so as to respectively protect part of the structure.
Further, the protection plate 41 can be made of stainless steel plates, the protection plate 41 is provided with the avoiding holes 40B corresponding to the position of the bus structure 50 entering the protection cavity 40A, and the rest part is a complete non-hollowed plate, so that dust and water dripping are prevented, and the pre-tightening end of the bus structure 50 is protected. The side and bottom surfaces of the protective cover 40 can be made of stainless steel wire mesh, and the stainless steel wire mesh is provided with hollowed holes which are beneficial to heat dissipation through separation.
Further, the protection cover 40 is divided into an upper part and a lower part, the upper protection cover 40 is used for protecting the corresponding stripping part of the output end of the steel-cored aluminum strand, the lower protection cover 40 is used for protecting a counterweight component and a spring, the upper protection cover 40 can be provided with no stainless steel wire net at the bottom, the lower protection cover 40 can be directly reinstalled on the side surface and the bottom surface of the upper protection cover 40 through the stainless steel wire net, the vertically distributed protection covers 40 are adopted for protecting the glass of the steel-cored aluminum strand and the fixed position and the set position of the pretightening structure 70 respectively, the corresponding surface of the protection cover 40 is convenient to correspondingly dismount when overhauling and maintaining, the dismounting steps of overhauling and maintaining are reduced, the dismounting difficulty of the protection plate 41 with a large area is reduced, and the overhauling and maintaining convenience is improved.
In one embodiment of the invention, as shown in connection with fig. 1 and 12, the fixed installation 100 further comprises a plurality of spaced apart side support structures 90 extending along the length of the bus bar structure 50, either side support structure 90 being located between the suspension structure 10 and the mounting structure 30.
In this embodiment, the plurality of bus bar assemblies of the bus bar structure 50 are wired in parallel along the X-axis direction, and the length extension direction of the plurality of bus bar assemblies of the bus bar structure 50 is Z-axis, and then the bus bar structure 50 is provided with a plurality of side supporting structures 90 distributed along the Z-axis to support the wiring of the bus bar structure 50 in the length extension direction in a stepwise manner, so as to avoid the sedimentation of the bus bar structure 50 caused by gravity.
The bus structure 50 has a wiring length of hundreds of meters or more, and the corresponding wind power tower 200 comprises a plurality of tower sections 20, and each tower section 20 is provided with at least one group of side supporting mechanisms. In an embodiment, each tower 20 is provided with a group of side supporting structures 90 along the adjacent head and tail of the Z axis, the side supporting structures 90 adopt a structure of clamping steel-cored aluminum stranded wires by groove guides, when the steel-cored aluminum stranded wires have longitudinal displacement, the stranded wires can drive the grooved wheels 93 to rotate in the grooves, the insulating layer is not damaged by rolling friction, and meanwhile, the grooved wheels 93 can also limit the left-right movement of the stranded wires.
Further, the side supporting structure 90 is used for fixing the middle suspended part of the bus assembly along the Z axis, and a plurality of steel-cored aluminum stranded wires can be integrally installed and are not easy to scatter. The side rail 90 includes a side rail 91, a side rail shaft 92, a plurality of sheaves 93, and a plurality of locating pins. The side support 91 is detachably mounted on the tower 20, the side support shaft 92 is disposed on the side support 91 and along the X-axis direction, and the plurality of sheaves 93 are respectively fixed on the side support shaft 92 by positioning pins.
The side supporting structure 90 of the invention performs side supporting limit on the front side and the rear side of the steel-cored aluminum strand along the Y-axis direction. Wherein, the side support 91 is located on the tower 20 along the X axis direction, and is equipped with two support arms along the Y axis direction, the side support structure 90 includes two side support shafts 92, two ends of two side support shafts 92 are installed respectively on the support arms of both sides, and two side support shafts 92 are located the front and back both sides position of bus bar structure 50 along the Y axis respectively, install a plurality of sheaves 93 on each side support shaft 92, make two side support shafts 92 on can installing two rows of sheaves 93, be located two sheaves 93 that the front and back two rows of positions correspond and be used for carrying out the side support to a stranded conductor 51.
Each group of bus assemblies can be provided with two positioning pins, the two positioning pins are respectively positioned at the outer sides of two ends of the plurality of grooved wheels 93 corresponding to the bus assemblies, the positioning pins are detachably connected with the side support shafts 92 to relatively limit the plurality of grooved wheels 93 along the X-axis direction, and the setting stability of the grooved wheels 93 is improved so as to improve the setting stability of the side support structure 90.
Further, the grooved pulley 93 and the lateral support shaft 92 are made of insulating materials, and the grooved pulley 93 is provided with a guide groove along the periphery vertical to the X, namely, the guide groove is an annular groove arranged along the O-YZ plane. The sheave 93 and the side support 92 may be stationary relative to each other, or the sheave 93 may be rotatable about the side support 92. The annular groove between each stranded conductor 51 of the bus structure 50 and the grooved pulley 93 can be sliding friction or rolling friction when the stranded conductor is longitudinally displaced, and rolling friction is preferred, namely, the grooved pulley 93 is preferably arranged in a rotating way around the side supporting shaft 92, so that damage to an outer insulating layer of the steel-cored aluminum stranded wire due to contact of the guide groove of the grooved pulley 93 when the sliding friction is overlarge is effectively avoided.
It will be appreciated that the material of the sheaves 93 may be a plastic or rubber piece, and preferably may be ceramic, with the ceramic sheaves 93 providing good overall insulation of the side support structure 90. The grooved pulley 93 can be arranged to rotate around the side support shaft 92 while having insulating property, so that the damage of the outer insulating layer of the steel-cored aluminum strand can be effectively avoided, and the vibration environment in the wind power tower 200 can be adapted.
Furthermore, each group of bus assemblies is provided with a group of top switching boxes and a group of bottom switching boxes except for the body of each bus assembly, and the bus assemblies are used for switching electric energy.
In the above embodiment, the whole structure of the pre-tightening structure 70, the suspension structure 10, the side supporting structure 90 and the protection structure is convenient to install and maintain, has low cost and maintenance cost, has good anti-shake performance, is beneficial to improving the safety and stability of the power transmission system, and ensures the safety performance of the whole wind power bus structure 50 and the fixed laying device 100 thereof.
The invention also provides an electric energy transmission system, which comprises an energy storage end and a fixed laying device 100, wherein the specific structure of the fixed laying device 100 refers to the embodiment, and the electric energy transmission system adopts all the technical schemes of all the embodiments, so that the electric energy transmission system at least has all the beneficial effects brought by the technical schemes of the embodiments, and the specific structure of the fixed laying device 100 is not repeated herein. The wind power tower 200 comprises a tower barrel 20, wherein the tower barrel 20 is provided with a tower cavity, an energy storage end is arranged in the tower cavity, the fixed laying device 100 is arranged on the inner wall of the tower cavity, and the fixed laying device 100 is connected with the energy storage end through a switching terminal 82.
In this embodiment, the bottom and the top of the bus structure 50 are respectively fixed relatively through the pre-tightening structure 70 and the suspension structure 10, the bus structure 50 is supported by the side support structure 90 along the length direction of the Z axis, and meanwhile, the end of the bus structure 50 is protected by the protective cover 40, so that the setting stability of the bus structure 50 and the fixing and laying device 100 of the whole wind power is ensured.
During normal operation, electric energy generated by the wind generating set is transmitted from the top of the tower 20 to the energy storage end at the bottom of the tower 20 through the wind generating set and the fixed laying device 100. The steel-cored aluminum strand is wrapped on the suspension ring 152 of the suspension structure 10, and the steel core stripped from the end of the steel-cored aluminum strand is used for connection and fixation, and the aluminum core is used for outputting electric energy, so that continuous electric energy is transmitted through the steel-cored aluminum strand. The part of the downward extension wiring of the steel-cored aluminum stranded wire is fixed through a plurality of side supporting mechanisms until the bottom pre-tightening structure 70, one end of the pre-tightening structure 70 is connected with the steel core stripped by the steel-cored aluminum stranded wire through the balancing weight of the counterweight component, the other end of the pre-tightening structure is connected with the limiting seat 32 at the bottom through the elastic piece 72, and the elastic pre-tightening component has the pre-tightening and anti-shake functions on the whole steel-cored aluminum stranded wire, so that the aluminum core is ensured to be connected with the energy storage end through the switching component 80, and the electric energy transmission operation of the whole wind power generation is completed.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. A fixed-laying apparatus, characterized in that it comprises:
the base body comprises a hanging structure and a mounting structure which are distributed up and down, the mounting structure comprises a mounting seat and a limiting seat, the limiting seat is positioned at one side of the mounting seat away from the hanging structure at intervals, and the mounting seat is used for mounting the switching terminal;
the bus structure is characterized in that one end of the bus structure is limited on the suspension structure, and the other end of the bus structure is provided with a power connection section and a fixing section, wherein the power connection section is used for electrically connecting the power connection terminal; and
The pre-tightening structure, pre-tightening structure one end is connected spacing seat, and the other end is connected fixed section, pre-tightening structure has elasticity, so that fixed section with spacing seat elastic connection.
2. A fixed laying apparatus as claimed in claim 1, wherein, in the direction of extension of the busbar structure, the mounting seat is provided with a movable space therethrough, and an end of the pre-tightening structure remote from the limit seat passes through the movable space to connect the fixed segment.
3. A fixed deposition device as claimed in claim 2 wherein the pre-tensioning structure is provided with a guide aperture, the direction of extension of the guide aperture being parallel to the direction of extension of the busbar structure;
The mounting seat is provided with a guide rod, the guide rod penetrates through the guide hole, and the extending direction of the guide rod and the extending direction of the guide hole are arranged at an included angle.
4. A fixed deposition device as claimed in claim 3 wherein the pre-tensioning arrangement comprises:
the weight piece is movably arranged in the movable space in a penetrating mode, one end of the weight piece is connected with the fixed section, and the middle of the weight piece is provided with the guide hole; and
and one end of the elastic piece is connected with the limiting seat, and the other end of the elastic piece is connected with one end of the counterweight piece, which is far away from the fixed section.
5. The fixed deposition device of claim 1 wherein said bus bar structure comprises a plurality of stranded wire conductors, each of said stranded wire conductors having an end formed with said fixed section and said power receiving section;
the pretightening structure is provided with pretightening assemblies corresponding to one stranded conductor, and two ends of each pretightening assembly are respectively connected with one fixing section and the limiting seat.
6. A fixed laying apparatus as claimed in claim 5, wherein a plurality of said stranded conductors are arranged in parallel;
the pre-tightening structure comprises a plurality of pre-tightening assemblies corresponding to the stranded conductors;
The mounting seat further comprises a partition piece, the partition piece is provided with a plurality of partition protruding blocks, and each partition protruding block is clamped between two adjacent pre-tightening assemblies.
7. The fixed-deployment apparatus of claim 5 wherein the fixed-deployment apparatus further comprises a plurality of securing assemblies corresponding to a plurality of the stranded conductors, each securing assembly comprising:
a fixing member;
the first fixing clamp is arranged at one end of the fixing piece, and one end, far away from the fixing piece, of the first fixing clamp is connected with the fixing section; and
The second fixing clamp is arranged at the other end of the fixing piece, and one end, far away from the fixing piece, of the second fixing clamp is connected with the pre-tightening structure.
8. A fixed deposition device as claimed in any one of claims 1 to 7 further comprising a protective cover provided with a protective cavity, the protective cover being located at an end of the busbar structure remote from the suspension structure, the mounting structure and the pre-tension structure being located in the protective cavity, an end of the busbar structure extending into the protective cavity;
and/or along the length extending direction of the bus structure, the fixed laying device further comprises a plurality of side supporting structures which are distributed at intervals, and any side supporting structure is located between the hanging structure and the mounting structure.
9. A fixed deposition device as claimed in claim 8 wherein the shield includes:
the protection plate is arranged facing the suspension structure and provided with an avoidance hole; and
the protection network is connected to the periphery of the protection plate, and encloses with the protection plate to form a protection cavity, the mounting structure with the pretension structure is all located the protection intracavity, the one end of generating line structure is passed through dodge the hole and stretch into the protection intracavity.
10. Electric energy transmission system for wind-powered electricity generation tower, its characterized in that, wind-powered electricity generation tower includes a tower section of thick bamboo, a tower section of thick bamboo is equipped with the tower chamber, electric energy transmission system includes:
the energy storage end is arranged in the tower cavity; and
a fixed installation as claimed in any one of claims 1 to 9, provided on the inner wall of the tower cavity, the fixed installation being connected to the energy storage end by an adapter terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311665050.7A CN117712964A (en) | 2023-12-05 | 2023-12-05 | Fixed laying device and electric energy transmission system applied to wind power tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311665050.7A CN117712964A (en) | 2023-12-05 | 2023-12-05 | Fixed laying device and electric energy transmission system applied to wind power tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117712964A true CN117712964A (en) | 2024-03-15 |
Family
ID=90161635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311665050.7A Pending CN117712964A (en) | 2023-12-05 | 2023-12-05 | Fixed laying device and electric energy transmission system applied to wind power tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117712964A (en) |
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2023
- 2023-12-05 CN CN202311665050.7A patent/CN117712964A/en active Pending
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