CN206758997U - The polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field - Google Patents

The polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field Download PDF

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Publication number
CN206758997U
CN206758997U CN201621423144.9U CN201621423144U CN206758997U CN 206758997 U CN206758997 U CN 206758997U CN 201621423144 U CN201621423144 U CN 201621423144U CN 206758997 U CN206758997 U CN 206758997U
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China
Prior art keywords
polar curve
wall bushing
wall
lead
gold utensil
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Active
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CN201621423144.9U
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Chinese (zh)
Inventor
郭贤珊
谭威
姚斌
简翔浩
施世鸿
孔志达
岳云峰
付颖
乐波
谭启斌
祝全乐
郭金川
曾永胜
苏成
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State Grid Corp of China SGCC
China Energy Construction Group Guangdong Electric Power Design Institute Co Ltd
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China Energy Construction Group Guangdong Electric Power Design Institute Co Ltd
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Abstract

It the utility model is related to the polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field, go out transmission tower including wall, wall bushing, polar curve lead-out wire and polar curve, the polar curve lead-out wire is passed and is connected on a gold utensil by wall bushing, then goes out transmission tower to polar curve by gold utensil lead;The gold utensil is connected with the insulator chain of more than three, the other end of at least two is fixedly connected on wall in the insulator chain, the other end of at least one is fixed on polar curve outlet tower, formed polar curve lead-out wire supporting construction, with prevent polar curve lead-out wire produce displacement when to increase wall bushing impact.The utility model easily makes wall bushing bear excessive mechanical load and is damaged or destroys when can solve the problem that existing 1100kV UHVDC converter stations Indoor DC Field polar curve wall bushing outlet the problem of, there is the mechanical load for reducing direct-current polar wall bushing terminal and being born under big wind condition, improve wall bushing operating safety factor, lift the beneficial effects such as DC engineering reliability.

Description

The polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field
Technical field
A kind of polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field is the utility model is related to, is fitted For 1100kV UHVDC converter station Indoor DC Field polar curve wall bushing outlets.Belong to power equipment and constructing structure skill Art field.
Background technology
Direct-current polar wall bushing is the tie that Indoor DC Field and direct-current polar outlet are connected in DC engineering, typically by Center conductor, cylinder through walls, inner shield system, hollow combined insulator and balanced pressure system etc. form.Wall bushing overlength surpasses It is poor that thin structure and the special mounting mode of only one fixing point have together decided on its end mechanical performance, binding post It is not enough to bear larger power.Therefore, to avoid wall bushing terminal from bearing larger mechanical load for a long time, in customary DC work Cheng Zhong, a transitional struts insulator or suspension insulator typically are designed in wall bushing open air side end, reduce wall bushing The mechanical load of end, improve safety coefficient.
Existing direct-current polar wall bushing outlet tapping form is typically using before being arranged on wall bushing open air lateral root portion The support insulator of side is connected to the outlet of direct current pole by drawing lower transition.Because mechanical load ability is born in wall bushing root Limitation, higher requirement, especially larger anti-bending strength and top are proposed to the transitional struts insulator for being arranged at open air Portion's displacement control requires.What the connecting lead wire that the anti-bending strength of insulator must be able to bear the pole outlet of insulator direct current was conducted Mechanical load, and consider the influence of strong wind.
For 1100kV UHVDC converter stations, because wall bushing length is more than the machine that 25m, its end can bear Tool load is extremely limited.Therefore, higher is required to the outdoor 1100kV support insulators of transition, due to 1100kV voltage class more Height, required air clearance is bigger, and the dry arcing distance of equipment is bigger, and outdoor 1100kV support insulators are highly not less than 18m, To stabilization of equipment performance, especially equipment top displacement amount control difficulty is big, can not still possess after support insulator highly increases Stronger bending strength, device fabrication difficulty increase.
Utility model content
The purpose of this utility model, worn to solve existing 1100kV UHVDC converter stations Indoor DC Field polar curve A kind of the problem of easily making wall bushing bear excessive mechanical load during wall sleeve outlet and being damaged or destroy, there is provided extra-high voltage The polar curve wall bushing outlet structure of DC converter station Indoor DC Field.With reduction direct-current polar wall bushing terminal in strong wind The mechanical load that is born under situation, improve the features such as wall bushing operating safety factor, lifting DC engineering reliability.
The purpose of this utility model can be achieved through the following technical solutions:
The polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field, including wall, wall bushing, pole Line lead-out wire and polar curve go out transmission tower, and the polar curve lead-out wire is passed and is connected on a gold utensil by wall bushing, then passes through gold Tool lead goes out transmission tower to polar curve;The gold utensil is connected with the insulator chain of more than three, at least two in the insulator chain The other end be fixedly connected on wall, the other end of at least one is fixed on polar curve outlet tower, form polar curve lead-out wire Supporting construction, with prevent polar curve lead-out wire produce displacement when to increase wall bushing impact.
The purpose of this utility model can also be achieved through the following technical solutions
Further, for described insulator chain using gold utensil as fixing point, annular radial distribution is fixed on wall and polar curve Go out in transmission tower.
Further, described gold utensil is located at wall bushing extraction above position, the connection of described insulator chain one end On gold utensil, the other end is fastened on wall and polar curve goes out in transmission tower, positioned at the two side position walls and polar curve of wall bushing In outlet column overhead, the polar curve lead-out wire for drawing wall bushing is fixed at extraction location using gold utensil.
Further, described insulator chain is fixed in a plane distribution.
Further, described insulator chain is three, and three bar insulation substrings are strained and fixed by three different directions, one Bar insulation substring is fixedly connected in polar curve outlet column overhead, and another two bar insulations substring is fixedly connected on wall, is in wall Triangle-Profile.
Further, described wall bushing pass that wall is outer and polar curve to go out transmission tower be in a lineal layout.
The beneficial effects of the utility model:
1st, polar curve lead-out wire of the present utility model is passed and is connected on a gold utensil by wall bushing, then passes through gold utensil pole Line lead-out wire goes out transmission tower to polar curve;The gold utensil is connected with the insulator chain of more than three, at least two in the insulator chain The other end of bar is fixedly connected on wall, the other end of at least one is fixed on polar curve outlet tower, forms polar curve lead-out wire Supporting construction, with prevent polar curve lead-out wire produce displacement when to increase wall bushing impact;Therefore can solve the problem that existing Wall bushing is easily set to bear excessive machine during 1100kV UHVDC converter station Indoor DC Field polar curve wall bushing outlets Tool load and it is impaired or the problem of destroy, having reduces the mechanical lotus that direct-current polar wall bushing terminal is born under big wind condition Carry, improve the beneficial effects such as wall bushing operating safety factor, lifting DC engineering reliability.
2nd, the utility model can cancel the 1100kV support insulators for setting high-mechanical property out of doors, reduce and set manufacture Difficulty, reduce equipment investment, at the same also reduce that direct-current polar wall bushing terminal is normal and big wind condition under the mechanical lotus born Carry, improve wall bushing operating safety factor, lift DC engineering reliability.
3rd, gold utensil of the present utility model is located at wall bushing extraction above position, and insulator chain one end is connected to gold utensil On, the other end is fastened on wall and polar curve goes out in transmission tower, and the two side position walls and polar curve positioned at wall bushing go out transmission tower On tower top, the polar curve lead-out wire for drawing wall bushing is fixed at extraction location using gold utensil.Therefore, the utility model structure Simply, easy for installation, performance stabilization, preferably ensure that wall bushing bears big mechanical load.
Brief description of the drawings
Fig. 1 is stereogram of the present utility model.
Fig. 2 is floor plan of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The polar curve wall bushing outlet structure of shown UHVDC converter station Indoor DC Field referring to Figures 1 and 2, bag Include wall 1, wall bushing 2, polar curve lead-out wire 3 and polar curve and go out transmission tower 4, the polar curve lead-out wire 3 is passed simultaneously by wall bushing 2 It is connected on a gold utensil 6, then transmission tower 4 is gone out to polar curve by the polar curve lead-out wire of gold utensil 6;The gold utensil 6 is connected with more than three Insulator chain 5, in the insulator chain 5 other end of at least two be fixedly connected on wall 1, at least one another On the fixed polar curve outlet tower 4 in end, the supporting construction of polar curve lead-out wire 3 is formed, to increasing during preventing that polar curve lead-out wire 3 from producing displacement Add the impact of wall bushing 2.
In embodiment, the polar curve lead-out wire 3 is passed by wall bushing 2 by the centre position of wall 1.Described gold utensil 6 Above position at the extraction of wall bushing 2, described one end of insulator chain 5 is connected on gold utensil 5, and the other end is fastened on Wall 1 and polar curve go out in transmission tower 4, and the two side position walls 1 and polar curve positioned at wall bushing 2 go out on the tower top of transmission tower 4, utilize gold utensil 6 are fixed on the polar curve lead-out wire 3 for drawing wall bushing 2 at extraction location.
Specifically, described insulator chain 5 is fixed in a plane distribution.Described insulator chain 5 is three, three bar insulations Substring 5 is strained and fixed by three different directions, and a bar insulation substring 5 is fixedly connected on polar curve and gone out on the tower top of transmission tower 4, another two Insulator chain 5 is fixedly connected on wall 1, with 1 distribution triangular in shape of wall.Described wall bushing 2 passes outside wall 1 and pole It is in a lineal layout that line, which goes out transmission tower 4,.
During installation, two strain insulator string hanging points are set at the top of the side wall of installation direct-current polar wall bushing 2, at family Outer direct-current polar goes out transmission tower 4 and sets a strain insulator string hanging point, and three insulator chain hanging points are arranged in triangle, three The end of strain insulator string 5 takes gold utensil 6 to be fixed together, and fixed position is located at immediately ahead of the end grading shield of wall bushing 2 Overhead, three insulator chains 5 are mutually 120 ° of angles and arrange to form rock-steady structure.The terminal of wall bushing 2 by polar curve lead-out wire 3 with The fixation gold utensil 6 of three insulator chains 5 connects, then is connected to direct current pole outgoing conductor by polar curve lead-out wire 3.
When the utility model is applied, go out transmission tower 4 by using polar curve and wall bushing 2 installs side wall and sets triangular arrangement Insulator chain 5, form stable three-legged structure, effectively secure the polar curve of wall bushing 2 and draw thread end, avoid polar curve from drawing Outlet is conducted to the binding post of wall bushing 2 due to outdoor big wind-induced additional load.Meanwhile three strain insulator strings 5 End fixed position is located at overhead immediately ahead of the end grading shield of wall bushing 2, effectively shortens wall bushing polar curve lead-out wire Length, further reduce the load that wall bushing terminal is born.
The utility model is compared with existing conventional wall bushing goes out line technology:
1st, the utility model is avoided by setting three strain insulator strings to fix wall bushing polar curve lead-out wire root Conduction to the active force of wall bushing 2, limits wall bushing and connect under strong wind operating mode out of doors for wall bushing polar curve lead-out wire Line terminals stress is smaller, in the range of the mechanical load that wall bushing allows, ensures the long-term safety operation of wall bushing, improves The operational reliability of DC transmission system.
2nd, conventional wall bushing outlet scheme must use outdoor 1100kV support insulators, and require the support insulator Possess under the active force such as higher anti-bending strength, strong wind, earthquake less offset at the top of insulator, and it is enough climb electricity away from From.The utility model, which need not increase outdoor 1100kV support insulators wall bushing outlet can be achieved, to be drawn and connects, and solves open air The problem of manufacture of 1100kV support insulators is difficult, while construction investment is also reduced, there is obvious economic benefit.

Claims (7)

1. the polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field, including wall (1), wall bushing (2), polar curve lead-out wire (3) and polar curve go out transmission tower (4), it is characterized in that:The polar curve lead-out wire (3) is worn by wall bushing (2) Go out and be connected on a gold utensil (6), then transmission tower (4) is gone out by gold utensil (6) lead to polar curve;The gold utensil (6) is connected with three More than insulator chain (5), the other end of at least two is fixedly connected on wall (1), at least in the insulator chain (5) The other end for having one is fixed on polar curve outlet tower (4), the supporting construction of polar curve lead-out wire (3) is formed, to prevent polar curve from drawing Impact when line (3) produces displacement to increase wall bushing (2).
2. the polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field according to claim 1, its It is characterized in:The polar curve lead-out wire (3) is passed by wall bushing (2) by wall (1) centre position.
3. the polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field according to claim 1 or 2, It is characterized in that:The insulator chain (5) is with gold utensil (6) for fixing point, and Triangle-Profile is fixed on wall (1) and polar curve goes out transmission tower (4) on.
4. the polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field according to claim 1 or 2, It is characterized in that:The gold utensil (6) is located at wall bushing (2) extraction above position, and described insulator chain (5) one end is connected to gold Have on (6), the other end is fastened on wall (1) and polar curve goes out in transmission tower (4), i.e. two side positions positioned at wall bushing (2) Wall (1) and polar curve go out on transmission tower (4) tower top, and the polar curve lead-out wire (3) that wall bushing (2) will be drawn using gold utensil (6) is fixed At extraction location.
5. the polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field according to claim 1 or 2, It is characterized in that:The insulator chain (5) is fixed in a plane distribution.
6. the polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field according to claim 5, its It is characterized in:Described insulator chain (5) is three, and three bar insulation substrings (5) are strained and fixed by three different directions, and one absolutely Edge substring (5) is fixedly connected on polar curve and gone out on transmission tower (4) tower top, and another two bar insulations substring (5) is fixedly connected on wall (1), With wall (1) distribution triangular in shape.
7. the polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field according to claim 1 or 2, It is characterized in that:It is in a lineal layout that the wall bushing (2), which passes wall (1) to go out transmission tower (4) with polar curve outside,.
CN201621423144.9U 2016-12-22 2016-12-22 The polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field Active CN206758997U (en)

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Application Number Priority Date Filing Date Title
CN201621423144.9U CN206758997U (en) 2016-12-22 2016-12-22 The polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621423144.9U CN206758997U (en) 2016-12-22 2016-12-22 The polar curve wall bushing outlet structure of UHVDC converter station Indoor DC Field

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021093944A1 (en) * 2019-11-13 2021-05-20 Siemens Energy Global GmbH & Co. KG Bushing arrangement and converter system having the bushing arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021093944A1 (en) * 2019-11-13 2021-05-20 Siemens Energy Global GmbH & Co. KG Bushing arrangement and converter system having the bushing arrangement

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GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20180108

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Co-patentee after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute

Patentee after: State Grid Corporation of China

Address before: Tianfeng Road Development Zone in Guangzhou City, Guangdong province 510670 No. 1 Chinese energy construction group Guangdong Electric Power Design Institute Co., Ltd.

Patentee before: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute

TR01 Transfer of patent right