CN208637794U - Components of corona rings and HVDC installations - Google Patents
Components of corona rings and HVDC installations Download PDFInfo
- Publication number
- CN208637794U CN208637794U CN201590001582.3U CN201590001582U CN208637794U CN 208637794 U CN208637794 U CN 208637794U CN 201590001582 U CN201590001582 U CN 201590001582U CN 208637794 U CN208637794 U CN 208637794U
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- CN
- China
- Prior art keywords
- corona ring
- pipe
- gripping sleeve
- ring according
- bolt
- Prior art date
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- 238000009434 installation Methods 0.000 title description 5
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 125000001475 halogen functional group Chemical group 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000003466 welding Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/02—Corona rings
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Installation Of Bus-Bars (AREA)
- Insulators (AREA)
Abstract
本实用新型涉及一种电晕环和高压直流输电装置的部件，所述电晕环包括多个金属的空心管，这些金属空心管布置为至少部分地包围所述部件。即使在高电压和最高电压下，所述电晕环也应可靠地确保对高压直流输电装置中的部件的屏蔽，同时应该能够以特别少的费用制造并且安装所述电晕环。为此，所述空心管中的至少两个通过可拆卸的摩擦配合式的连接装置相互连接。
The utility model relates to a corona ring and a component of a high-voltage direct current power transmission device. The corona ring includes a plurality of metal hollow tubes arranged to at least partially surround the components. Even at high and highest voltages, the corona ring should reliably ensure the shielding of components in the HVDC system, and at the same time it should be possible to manufacture and install the corona ring at a particularly low cost. For this purpose, at least two of the hollow tubes are connected to each other by means of a detachable friction-fit connection.
Description
Technical field
The utility model relates to a kind of corona ring of component for high voltage direct current transmission device, corona ring includes multiple gold
The hollow pipe of category, these hollow pipes are arranged as at least partially around component.
Background technique
D.C. high voltage transmission (HVDC) be used for it is relatively remote, usually in the distance of about 750km by direct current to
Eminence transmits electric energy.Although in this regard, be suitble to high pressure, expensive current transformer need relatively high technical fee, this is because
In power station, the electric energy as the three-phase alternating current that frequency is 50Hz or 60Hz is almost always generated by synchronous generator.So
And since determining distance, although technical fee and additional transducer loss, the transmission loss of D.C. high voltage transmission
It amounts to lower than using three-phase alternating current electrical transmission.
Since this current transformer is more than the higher operating voltage of 100kV, it is often necessary to be surrounded with so-called corona ring
This current transformer is to generate shielding action.Corona ring is actually the Simplified two-dimension form of faraday cup.It is fixed according to electrostatics
Rule, the inside of this ring is not in corona discharge almost without electric field there.
Since the cross section of current transformer is rectangle, it is used for the equally generally rectangular shaped forming of corona ring of current transformer so far.Electricity
Halo is usually made of the straight metal hollow pipe that diameter is 160-500mm, these metal hollow pipes and corresponding 90 ° of pipe bends
Welding.Then, weld seam is carried out expending biggish thick smooth and fine polishing.This means that time consumption is larger, because all
Step passes through realization hand-manipulated mostly.In addition, the screening arrangement of welding cannot be transported to building site in the form of single part
Finally to be assembled.Therefore, transport case is manufactured with over dimensioning (such as 2.5m × 5m) and is difficult to operate (transport, peace
Dress).
Renewable energy is converted into electric energy supply and the demand associated with it to transmission of electricity energy is uploaded in section farther out increases
Under long background, the demand to the convertor equipment for D.C. high voltage transmission also greatly increases recently.Due to current and unsteady flow
The relevant expense of the screening arrangement of device, governable production capacity are insufficient for demand.
Utility model content
Therefore, technical problem to be solved by the utility model is to provide a kind of corona rings of the type mentioned at the beginning, should
Even if corona ring under high voltage and ceiling voltage, can also reliably ensure the screen to the component in high voltage direct current transmission device
It covers, while can be manufactured with especially few expense and corona ring is installed.
The technical problem is that at least two in hollow pipe pass through dismountable in such a way that the utility model solves
The attachment device of frictional fit is connected with each other.
Here, the starting point of the utility model is, by the number for reducing manually operated consumption and raising standardized component
Amount, it is possible thereby to realize the consuming in the corona ring manufacture and installation that reduce the component for high voltage direct current transmission device.To this
It is desirable that more particularly to cancel the welding of the material mating of consuming.In order to seek alternatives, here, big
It is unexpectedly confirmed in the dielectric research and development test of scale, for the frame conditions required in high-voltage direct-current transmission system, no
The consuming for higher manual welding and the weld seam finishing for hollow pipe for needing to put into so far.But unexpectedly table
It is bright, be close to each other fixed hollow pipe can also by the connection of frictional fit, be for example bolted or clamp connection and ensure foot
Enough shielding actions.
In the first advantageous design scheme of the method, dismountable friction fit attachment device includes metal
Gripping sleeve.Here, the casing be used as the connector between two pipes and by friction fit be fixedly clamped this two
A connected pipe.
Herein advantageously, gripping sleeve is configured to elbow union, that is to say, that the two pipes being connected with gripping sleeve
It is not straight but is connected with the angle determined by sleeve-shaped.The desired several of corona ring correspondingly may be implemented as a result,
What shape.
Particularly advantageously, gripping sleeve connects these hollow pipes at an angle of 90 each other, and therefore, elbow union has 90 °
Turning part.As a result, when needing rectangle corona ring structure for shielding current transformer in high voltage direct current transmission device, casing can
To constitute the corner of rectangle corona ring structure.
Herein advantageously, gripping sleeve is configured to be made of two components, wherein both parts can pass through multiple spiral shells
Bolt is connected with each other.It can be especially simply plugged into before both parts engage if both parts are designed so that as a result,
Pipe, then gripping sleeve can be installed particularly simply.
Here, bolt is advantageously further arranged as, so that being connected hollow pipe friction fit by tightening each bolt
Ground connection is fixed in gripping sleeve.This mode that may be implemented is that both parts are fixed and pressed from both sides by bolt with being close to each other
The pipe end being tightly arranged between the component of gripping sleeve.
Herein advantageously, the component of gripping sleeve is configured to mirror symmetry.This realizes particularly simple manufacture.
In advantageous second design scheme, gripping sleeve integrally constructs and has multiple bolts, these bolts
It is arranged as, so that being fixed on hollow pipe friction fit in gripping sleeve with connecting by tightening each bolt.This for example may be used
It is that the deformation by tightening bolt generation reduces the diameter of the ring of the clamping pipe end of gripping sleeve in a manner of realization.
In addition, it is advantageously additionally that gripping sleeve is fixed on supporting member by tightening each bolt herein, also
It is to say, bolt is arranged to, and is fixedly clamped so that on the one hand bolt is realized, on the other hand realizes the fixation on bracket.Thus simple
Installation is changed.
In advantageous third design scheme, the attachment device of dismountable friction fit includes that there are two pipe collars for tool
Connecting element, the two pipe collars fix one in two hollow pipes respectively.It is achieved in the particularly simple connection of hollow pipe
And it is achieved in simple installation.
Advantageously, this hollow pipe for being in pipe end upper opening is equipped with end cap.The end cap advantageously equally by metal construction simultaneously
And it is for example welded with hollow tube end.
In all design schemes, hollow pipe and/or gripping sleeve and/or connecting element and/or pipe collar and/or end
Lid is, advantageously made of aluminum.
The component of high voltage direct current transmission device, such as current transformer are advantageously surrounded by the corona ring.
Method for manufacturing corona ring advantageously comprises following continuous step:
Metal hollow pipe is manufactured,
Metal hollow pipe is transported at component,
Metal hollow pipe is arranged as partly to surround the component, and
Hollow pipe is connected by the attachment device of dismountable friction fit.
Here, advantageously hollow pipe is manufactured together with all attachmentes, such as fixing piece or similar accessories first, then
It is connected with each other on the building site of high-voltage dc transmission electrical components with above-mentioned casing or pipe collar.
The advantages of being obtained using the utility model in particular, in that, by the way that the simple friction fit of the hollow pipe of corona ring is connected
Ground connection fixes the extremely simple installation for realizing high-voltage direct-current transmission system with being close to each other, and ensures but then enough
Shielding action.The welding and polishing work on the beginning biggish screening arrangement of consuming can be saved.Connected with bolt
The corner elements (or attachment) connect allow smaller packaging unit (reducing 70%).Used casting and Standard fittings are realized
Higher flexibility in manufacture.Higher specialization degree (foundry, semi-finished product) is feasible in the scope of manufacture
's.It is also even feasible according to the standardization (outer dimension and attachment) of modular system form.
Detailed description of the invention
The embodiments of the present invention are elaborated below in conjunction with attached drawing.In the accompanying drawings:
Fig. 1 shows the first embodiment of the corona ring for the elbow union being made of two components,
Fig. 2 shows the second embodiment of the corona ring with Integral direct casing,
Fig. 3 shows the third embodiment of the corona ring with the end cap on hollow pipe pipe end.
In all the appended drawings, identical component appended drawing reference having the same.
Specific embodiment
Fig. 1 shows the corona ring 101 of rectangle comprising two shorter hollow pipes 102,104 and two length are hollow
Pipe 102,104 length approximately twice as hollow pipe 106,108, these hollow pipes are arranged as rectangle.Hollow pipe 102-108 has
Identical diameter.The diameter is in 160 between 500mm in various embodiments.Every three fixing pieces 110 be arranged in compared with
On long hollow pipe 106,108, these fixing pieces 110 are fixed by welding on hollow pipe 106,108.
These hollow pipes 102,104,106,108 pass through the elbow union of four difference same structures in its pipe end in total
112 connections (each is as the connection between two pipe ends).Elbow union 112 with 90 ° of angles connect these hollow pipes 102,
104,106,108.These elbow unions 112 are configured to be made of two components, wherein the parting surface between two components is located at
In the plane of delineation.Both parts are in mirror symmetry.Four 114 phases of bolt that both parts pass through each elbow union 112
Even.When tightening bolt 114, the both parts of elbow union 112 are connected with each other and are mutually pressed against, as a result, hollow pipe
102, it is fixed in each opening of elbow union 112 to 104,106,108 pipe end friction fit connection.
With hollow pipe 102,104,106,108, the entire corona ring 101 of fixing piece 110 and elbow union 112 by aluminum
At.The manufacture of corona ring 101 shown in Fig. 1 realizes as follows, the place manufacture hollow pipe 102 not far from building site,
104, it 106,108 and fixing piece 110 and is welded to together.Elbow union 112 or its component are also not far from building site
Place manufacture.Hereafter, all components of corona ring 101 are transported to building site, that is such as D.C. high voltage transmission unsteady flow
The erection of device, and install in the manner shown in fig. 1 there.
Embodiment with the element towards the open rectangular shape in side is shown in Fig. 2.There are three electricity for element tool
Halo 201,202 and 204.These three identical corona rings 201,202,204 are overlappingly arranged up and down herein.Each corona ring
201,202,204 include two longer straight hollow pipes 206,208,210,212,214,216, these hollow pipes 206,
208,210,212,214,216 have connected 90 ° of pipe bends 218,220,222,224,226,228 in side respectively.Here,
These 90 ° of pipe bends 218,220,222,224,226,228 pipe end with hollow pipe 206,208,210,212,214,216 respectively
In one welding.Alternatively, also can choose the mode of being implemented as follows under lesser pipe diameter, i.e., hollow pipe 206,208,
210,212,214,216 pipe end passes through bending.
The every two straight tube end of hollow pipe 206,208,210,212,214,216 is connected each other by frictional fit, at 90 °
Be connected on each pipe end of pipe bend 218,220,222,224,226,228 shorter straight hollow pipe 230,232,234,
236,238,240, the same friction fit of these hollow pipes with corresponding 90 ° of pipe bends 218,220,222,224,226,
228 connections.At least ensure the connection of frictional fit by a straight gripping sleeve 242 respectively.These 242 phases of gripping sleeve
The annular cross section of disconnecting unit is constructed and had together.It is disconnected that this is bridged by the bolt 244 on the flange on every side
Open portion, thus pass through tighten bolt 244 reduce the diameter of gripping sleeve 242 and be achieved in hollow pipe 206,208,210,212,
214, the fixation of 216,230,232,234,236,238,240 above-mentioned friction fit connection.Meanwhile bolt 244 will clamp
Casing 242 is fixed on supporting member 246, and bolt 244 is screwed into these supporting members 246, as a result, the shape of entire element
Shape is determined by these three corona rings 201,202,204.
It embodiment shown in Fig. 2 and is also entirely made of aluminum below in conjunction with Fig. 3 the embodiment described, and with single
The form of part is transported to building site.It is just realized by being fixed on supporting member 246 with gripping sleeve 242 by shown there
The assembly of shape.
The last one embodiment of corona ring 301 is shown in FIG. 3.Used hollow pipe 302,304,306,308 with
It is identical according to the hollow pipe of the corona ring 101 of Fig. 1 and arrange in the same manner.However, these hollow pipes 302,304,306,308 are not
It is connected by elbow union 112, but is respectively equipped with end cap 310 in its end.Instead, connection is set between pipe end
Element 312, these connecting elements 312 are respectively with a fixed each pipe end in 314 friction fit of pipe collar connection ground.In addition, with
Every two pipe collar 314 in the fixing element 316 of ladder-shaped fixes longer hollow pipe 396,308 between two parties.
All corona rings 101,201,202,204,301 are constituted for high-voltage dc transmission electrical components enough screening arrangement
And particularly simply it can manufacture and install.
Reference signs list
101 corona rings
102 hollow pipes
104 hollow pipes
106 hollow pipes
108 hollow pipes
110 fixing pieces
112 elbow unions
114 bolts
201 corona rings
202 corona rings
204 corona rings
206 hollow pipes
208 hollow pipes
210 hollow pipes
212 hollow pipes
214 hollow pipes
216 hollow pipes
218 pipe bends
220 pipe bends
222 pipe bends
224 pipe bends
226 pipe bends
228 pipe bends
230 hollow pipes
232 hollow pipes
234 hollow pipes
236 hollow pipes
238 hollow pipes
240 hollow pipes
242 gripping sleeves
244 bolts
246 supporting members
301 corona rings
302 hollow pipes
304 hollow pipes
306 hollow pipes
308 hollow pipes
310 end caps
312 connecting elements
314 pipe collars
316 fixing elements
Claims (13)
1. a kind of corona ring of the component for high voltage direct current transmission device, the corona ring includes three or three or more metals
Hollow pipe, these metal hollow pipes are arranged as at least partially around the component, wherein at least two in the hollow pipe
A attachment device by dismountable friction fit is connected with each other.
2. corona ring according to claim 1, which is characterized in that dismountable friction fit attachment device includes metal
Gripping sleeve.
3. corona ring according to claim 2, which is characterized in that the gripping sleeve is configured to elbow union (112).
4. corona ring according to claim 3, which is characterized in that the gripping sleeve is in 90 ° each other by the hollow pipe
Connect to angle.
5. the corona ring according to one of claim 2 to 4, which is characterized in that the gripping sleeve is configured to by two portions
Part composition, described two components can be connected with each other by multiple bolts (114).
6. corona ring according to claim 5, which is characterized in that the bolt (114) is arranged as, so that each by tightening
The hollow pipe friction fit is fixed in the gripping sleeve by a bolt (114) with connecting.
7. corona ring according to claim 5, which is characterized in that the component is configured to mirror symmetry.
8. corona ring according to claim 2, which is characterized in that the gripping sleeve integrally constructs and has more
A bolt (244), the multiple bolt (244) are arranged as, so that by tightening each bolt (244) for the hollow pipe friction
It is fixed in the gripping sleeve to formula connection.
9. corona ring according to claim 8, which is characterized in that additionally realize general by tightening each bolt (244)
The gripping sleeve is fixed on supporting member (246).
10. corona ring according to claim 1, which is characterized in that dismountable friction fit attachment device includes tool
There are two the connecting element (312) of pipe collar (314), described two pipe collars (314) fix one in two hollow pipes respectively.
11. corona ring according to claim 10, which is characterized in that the hollow pipe is equipped with end cap (310).
12. according to claim 1, corona ring described in 2,10 or 11, which is characterized in that hollow pipe and/or gripping sleeve and/or
Connecting element (312) and/or pipe collar (314) and/or end cap (310) are made of aluminum.
13. a kind of component of high voltage direct current transmission device, which is characterized in that by electricity according to one of claims 1 to 12
Halo surrounds.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2015/071583 WO2017050347A1 (en) | 2015-09-21 | 2015-09-21 | Corona ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208637794U true CN208637794U (en) | 2019-03-22 |
Family
ID=54249448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201590001582.3U Active CN208637794U (en) | 2015-09-21 | 2015-09-21 | Components of corona rings and HVDC installations |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN208637794U (en) |
| DE (1) | DE212015000319U1 (en) |
| WO (1) | WO2017050347A1 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509699A (en) * | 1994-06-06 | 1996-04-23 | Certainteed Corporation | Mechanical joint pipe adapter with inserted flexible spline |
| US6786302B2 (en) * | 2002-02-20 | 2004-09-07 | National University Of Singapore | Triple coupler for flexible scaffold system |
-
2015
- 2015-09-21 WO PCT/EP2015/071583 patent/WO2017050347A1/en active Application Filing
- 2015-09-21 CN CN201590001582.3U patent/CN208637794U/en active Active
- 2015-09-21 DE DE212015000319.1U patent/DE212015000319U1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017050347A1 (en) | 2017-03-30 |
| DE212015000319U1 (en) | 2018-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211215 Address after: Munich, Germany Patentee after: Siemens energy Global Ltd. Address before: Munich, Germany Patentee before: SIEMENS AG |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Munich, Germany Patentee after: Siemens Energy International Country or region after: Germany Address before: Munich, Germany Patentee before: Siemens energy Global Ltd. Country or region before: Germany |