CN107610882A - Raise the transformer that seat is reinforced - Google Patents
Raise the transformer that seat is reinforced Download PDFInfo
- Publication number
- CN107610882A CN107610882A CN201711053083.0A CN201711053083A CN107610882A CN 107610882 A CN107610882 A CN 107610882A CN 201711053083 A CN201711053083 A CN 201711053083A CN 107610882 A CN107610882 A CN 107610882A
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- Prior art keywords
- transformer
- anchor ear
- rise seat
- seat
- rise
- Prior art date
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Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 53
- 230000002787 reinforcement Effects 0.000 claims description 16
- 210000003462 vein Anatomy 0.000 claims description 8
- 239000011435 rock Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241001633942 Dais Species 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The present invention relates to a kind of transformer for raising seat and reinforcing, including the casing with host cavity, rise seat, bushing shell for transformer, reinforcing plate, anchor ear and flanged plate.Anchor ear is fixed with rise seat, and the both ends anchor ear of flanged plate and the surface of reinforcing plate are fixedly connected.Therefore, flanged plate can increase the constraint to raising seat.Moreover, multiple flanged plates being provided at circumferentially spaced around rise seat, therefore flanged plate can provide uniform support along the circumferential of rise seat.Further, reinforcing plate is attached to the surface of casing, and booster action is played to the local strength of casing.In vibration environment, rise seat is not easy to rock under the constraint of anchor ear and flanged plate, so as to effectively avoid occurring because of situations such as rupture of transformer pipe sleeve, oil leak caused by raising seat and rocking.Therefore, the anti-seismic performance for the transformer that above-mentioned rise seat is reinforced effectively is lifted.
Description
Technical field
The present invention relates to T ＆ D Technology field, more particularly to a kind of transformer for raising seat and reinforcing.
Background technology
Large-scale transformer is the crucial substation equipment in project of transmitting and converting electricity, plays and raises transformation at power station end,
User terminal reduces the effect of voltage, so as to reduce loss of the electric energy in transmission of electricity link.High-power transformer generally by iron core and coil,
Fill the casing and conservator, rise seat, radiator, the part such as the sleeve pipe composition of different voltage class of mineral oil.
However, in the geological disasters such as earthquake, the transformer for being arranged at open air is subject to different types of destruction, so as to
Cause project of transmitting and converting electricity to be stopped transport, power network paralysis, cause immeasurable loss.And the principal mode of the destruction of transformer is pottery
Insulator tube damage.In transformer, porcelain bushing is typically integrated design with rise seat, and raises seat and be fixed on transformer-cabinet
Surface.
When earthquake occurs, sleeve pipe and rise seat one work as its intrinsic frequency and earthquake around rise seat root rocking vibration
Frequency overlap when, rise seat can resonate, cause the amplitude of rocking vibration further to increase.Further, can cause from
And porcelain bushing Integral-crushing, dislocation, oil leak are caused, the various damages such as local crushing of porcelain bushing root pottery.Therefore, it is existing
Transformer anti-seismic performance is poor.
The content of the invention
Based on this, it is necessary to for existing transformer anti-seismic performance it is poor the problem of, there is provided a kind of good seismic performance
Rise seat reinforce transformer.
A kind of transformer for raising seat and reinforcing, including the casing with host cavity, rise seat and bushing shell for transformer, the liter
Dais is fixed on the tank surface and the bushing shell for transformer is arranged in the rise seat, the transformation that the rise seat is reinforced
Device also includes：
Reinforcing plate, cover and be fixedly connected in the surface of the casing, the rise seat with the reinforcing plate；
Anchor ear, it is sheathed on the rise seat, and the anchor ear and the surface interval pre-determined distance of the reinforcing plate；And
Multiple flanged plates, around being provided at circumferentially spaced for the rise seat, one end of the flanged plate is fixed with the anchor ear
Connection, the other end are fixedly connected with the surface of the reinforcing plate.
In one of the embodiments, the reinforcing plate is welded in the surface of the casing, and the flanged plate passes through screw thread
The mode of fastening achieves a fixed connection with the anchor ear and the reinforcing plate.
In one of the embodiments, the flanged plate includes main body and is arranged at two installations at the main body both ends
Plate, threaded mounting hole is offered on the installing plate, and described two installing plates are mutually perpendicular to.
In one of the embodiments, the inner surface setting of the anchor ear has anti-slip veins.
In one of the embodiments, the flexible absorbing energy layer of the inner surface setting of the anchor ear, the anti-slip veins are arranged at
On the elastic endergonic layer.
In one of the embodiments, the outer surface of the anchor ear is provided with along the circumference of the circumferentially extending of the anchor ear and added
Strengthening tendons.
In one of the embodiments, the outer surface of the anchor ear is provided with multiple vertical with the circumferential reinforcement indulge
To reinforcement, the multiple waling is provided at circumferentially spaced around the anchor ear.
In one of the embodiments, the multiple flanged plate is obliquely installed relative to the axis of the anchor ear.
In one of the embodiments, it is provided with ring-shaped step on the rise seat, the ring-shaped step is along the rise
Seat circumferentially extends and abutted with the surface of the reinforcing plate.
In one of the embodiments, in addition to additional reinforcement component, the additional reinforcement component include：
Clip, it is sheathed on the rise seat and is located at side of the anchor ear away from the reinforcing plate；
Multiple support bars, around being provided at circumferentially spaced for the rise seat, one end of the support bar is rotatablely arranged at
On the clip, the other end and the surface for being rotatablely arranged at the reinforcing plate.
The transformer that above-mentioned rise seat is reinforced, anchor ear are fixed with raising seat, and the both ends anchor ear of flanged plate and reinforcing plate
Surface is fixedly connected.Therefore, flanged plate can increase the constraint to raising seat.Moreover, multiple flanged plates are between the circumference of rise seat
Every setting, therefore flanged plate can provide uniform support along the circumferential of rise seat.Further, reinforcing plate is attached to the table of casing
Face, booster action is played to the local strength of casing.In vibration environment, rise seat is not easy under the constraint of anchor ear and flanged plate
Rock, so as to effectively avoid occurring because of situations such as rupture of transformer pipe sleeve, oil leak caused by raising seat and rocking.Therefore, on
The anti-seismic performance for stating the transformer that rise seat is reinforced effectively is lifted.
Brief description of the drawings
Fig. 1 is the structural representation that the transformer that seat is reinforced is raised in present pre-ferred embodiments；
Fig. 2 is the structural representation of anchor ear in the transformer that rise seat shown in Fig. 1 is reinforced；
Fig. 3 is the structural representation of flanged plate in the transformer that rise seat shown in Fig. 1 is reinforced.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the preferred embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more saturating
It is thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases
The arbitrary and all combination of the Listed Items of pass.
Referring to Fig. 1, the transformer 100 that the rise seat in present pre-ferred embodiments is reinforced includes casing 110, rise seat
120th, bushing shell for transformer (not shown), reinforcing plate 140, anchor ear 150 and flanged plate 160.
Casing 110 has host cavity.Wherein, casing 110 is generally made from a metal, and has higher hardness and machinery strong
Degree.The elements such as the fuel tank of core, accommodating conduction oil are provided with host cavity.The surface of casing 110 is additionally provided with to be connected with fuel tank
Radiator (not shown).
Rise seat 120 is hollow columnar structures, and bushing shell for transformer is arranged in rise seat 120.Rise seat 120 is fixed on case
The surface of body 110.Moreover, rise seat 120 connects with the host cavity of casing 110.Bushing shell for transformer is made up of insulating materials, for around
If lead.
Reinforcing plate 140 is covered in the surface of casing 110.Wherein, the material of reinforcing plate 140 can be with the material phase of casing 110
Together.Reinforcing plate 140 can play a part of local strengthening to the surface of casing 110.Specifically, rise seat 120 is solid with reinforcing plate 140
Fixed connection.Therefore, the bonding strength for raising seat 120 and casing 110 is higher.
Specifically in the present embodiment, reinforcing plate 140 is welded in the surface of casing 110.Therefore, when installing reinforcing plate 140
Without the operation such as be punched, slotted on the surface of casing 110, so as to which the globality of casing 110 will not be destroyed, and then prevent from dropping
The intensity of low casing 110.
It is pointed out that in other embodiments, reinforcing plate 140 also can be fixed on case by the mode such as engaging, being bonded
The surface of body 110.
Also referring to Fig. 2 and Fig. 3, anchor ear 150 is sheathed on rise seat 120, and anchor ear 150 and the table of reinforcing plate 140
Face interval pre-determined distance.Specifically, anchor ear 150 includes the part of two semicircular rings, two semicircular rings can be fastened by bolt, so as to
So that anchor ear 150 is closely sheathed on rise seat 120.
In the present embodiment, the inner surface setting of anchor ear 150 has anti-slip veins (not shown).
Specifically, anti-slip veins can be disposed on the structures such as the groove of the inner surface of anchor ear 150, projection.Anti-slip veins can increase
Frictional force between the inner surface and rise seat 120 of anchor ear 150, so as to prevent anchor ear 150 from producing position relative to rise seat 120
Move.
Further, in the present embodiment, the flexible absorbing energy layer (not shown) of the inner surface setting of anchor ear 150, anti-slip veins
It is arranged on elastic endergonic layer.
Specifically, the inner surface that elastic endergonic layer can be attached to anchor ear 150 by flexible materials such as rubber, silica gel is formed.
Energy caused by the absorbable vibrations of elastic endergonic layer, and anchor ear 150 is swung laterally with rise seat 120 in small scope.
When in vibration environment, elastic endergonic layer is avoided that anchor ear 150 contacts firmly with rise seat 120, so as to which further lifting is embraced
Installation strength between hoop 150 and rise seat 120.
Flanged plate 160 has high intensity, can be identical with the material of casing 110.One end of flanged plate 160 is solid with anchor ear 150
Fixed connection, the other end are fixedly connected with the surface of reinforcing plate 140.Therefore, flanged plate 160 can provide support to rise seat 120 and make
With.Further, flanged plate 160 is multiple, and being provided at circumferentially spaced around rise seat 120 of multiple flanged plates 160.Therefore, method
Blue plate 160 can provide uniform support from multiple directions to rise seat 120.
Because flanged plate 160 adds the constraint to raising seat 120, circumferential along rise seat 120 provides uniform support.
Moreover, reinforcing plate 140 can play booster action to the local strength of casing 110.Therefore, in vibration environment, rise seat 120 is not
Easily rock, so as to effectively avoid occurring because of situations such as ceramic pipe sleeve rupture, oil leak caused by raising seat 120 and rocking.Therefore,
The anti-seismic performance for the transformer that above-mentioned rise seat 120 is reinforced effectively is lifted.
In the present embodiment, flanged plate 160 is realized with anchor ear 150 and reinforcing plate 140 by way of screw threads for fastening and fixed
Connection.
Specifically, screw can be opened up respectively on the surface of anchor ear 150 and reinforcing plate 140, and by bolt by flanged plate 160
Respectively with anchor ear 150 and the screw threads for fastening of reinforcing plate 140.Wherein, the mode of screw threads for fastening has that easy for installation, outfit is simple
The characteristics of, it is easy to reequip the existing transformer for not carrying out raising the reinforcing of seat 120.
Further, in the present embodiment, flanged plate 160 includes main body 161 and two installing plates 163.Two installing plates
163 are respectively arranged at the both ends of main body 161, and threaded mounting hole 1632 is offered on installing plate 163.Wherein, two installing plates
163 are mutually perpendicular to.
Specifically, bolt passes through the threaded mounting hole 1632 on two installing plates 163, and respectively at anchor ear 150 and strengthen
The screw on the surface of plate 140 coordinates, so that surface of two installing plates 163 respectively with anchor ear 150 and reinforcing plate 140 screws togather.
Because anchor ear 150 is vertical with the surface of reinforcing plate 140.Therefore, two installing plates 163 are arranged to be mutually perpendicular to
When, two installing plates 163 directly abut with anchor ear 150 with reinforcing plate 140, position and pacify so as to be advantageous to flanged plate 160
Dress.
In the present embodiment, the outer surface of anchor ear 150 is provided with the circumferential reinforcement 151 along the circumferentially extending of anchor ear 150.
Further, in the present embodiment, the outer surface of anchor ear 150 is provided with multiple vertical with circumferential reinforcement 151
Waling 153, multiple being provided at circumferentially spaced around anchor ear 150 of waling 153.
Wherein, circumferential reinforcement 151 can be the raised line of annular, be advantageous to strengthen the radial strength of anchor ear 150.And indulge
It can be then the raised line of multiple bar shapeds to reinforcement 153.Waling 153 can strengthen the longitudinal strength of anchor ear 150.Moreover,
Waling 153 intersects to form reinforcement grid with circumferential reinforcement 151, so as to further increase the strong of the surface of anchor ear 150
Degree.
In this embodiment, multiple flanged plates 160 are obliquely installed relative to the axis of anchor ear 150.Now, flanged plate 160
Support effect is more preferable.
In the present embodiment, raise and ring-shaped step 121 is provided with seat 120, week of the ring-shaped step 121 along rise seat 120
Abut to extension and with the surface of reinforcing plate 140.
Ring-shaped step 121 can be integrally formed with rise seat 120.Now, convenient formation, and ring-shaped step 121 and rise seat
Connected between 120 more firm.Ring-shaped step 121 with reinforcing plate 140 by abutting, or rise seat 120 provides a support force.
It is additionally, since ring-shaped step 121 and anchor ear 150 and is spaced pre-determined distance, therefore the support force of ring-shaped step 121 and flanged plate 160
Support force can be respectively from different function of height in rise seat 120.Therefore, support force suffered by rise seat 120 more balances, so as to more
Keep stable beneficial to rise seat 120.
In the present embodiment, raising the transformer 100 that seat is reinforced also includes additional reinforcement component 170, additional reinforcement component
170 include clip 171 and support bar 173.
Clip 171 can be identical with the structure and material of anchor ear 150, for raising the clamping of seat 120.Further, clip
171 are sheathed on rise seat 120 and are located at side of the anchor ear 150 away from reinforcing plate 140.
Support bar 173 is including multiple, and being provided at circumferentially spaced around rise seat 120 of multiple support bars 173.Wherein, support
The one end of bar 173 is rotatablely arranged on clip 171, the other end and the surface for being rotatablely arranged at reinforcing plate 140.
Specifically, support bar 173 can be realized and rotatably connected by mode and the clip 171 and reinforcing plate 140 such as being pivotally connected, being hinged
Connect.Support bar 173 can play Auxiliary support effect to rise seat 120, so as to coordinate with flanged plate 160, be further ensured that rise
Seat 120 keeps stable in vibration environment.
The transformer 100 that above-mentioned rise seat is reinforced, anchor ear 150 is fixed with rise seat 120, and the both ends of flanged plate 160 are embraced
The surface of hoop 150 and reinforcing plate 140 is fixedly connected.Therefore, flanged plate 160 can increase the constraint to raising seat 120.It is moreover, more
Individual flanged plate 160 is provided at circumferentially spaced around rise seat 120, therefore flanged plate 160 can provide uniformly along the circumferential of rise seat 120
Support.Further, reinforcing plate 140 is attached to the surface of casing 110, and booster action is played to the local strength of casing 110.
In vibration environment, rise seat 120 is not easy to rock under the constraint of anchor ear 150 and flanged plate 160, so as to effectively avoid because of rise
Seat 120 rock caused by transformer pipe sleeve 130 rupture, oil leak situations such as occur.Therefore, the transformer that above-mentioned rise seat is reinforced
100 anti-seismic performance is effectively lifted.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of transformer for raising seat and reinforcing, including the casing with host cavity, rise seat and bushing shell for transformer, the rise
Seat is fixed on the tank surface and the bushing shell for transformer is arranged in the rise seat, it is characterised in that the rise seat
The transformer of reinforcing also includes：
Reinforcing plate, cover and be fixedly connected in the surface of the casing, the rise seat with the reinforcing plate；
Anchor ear, it is sheathed on the rise seat, and the anchor ear and the surface interval pre-determined distance of the reinforcing plate；And
Multiple flanged plates, around being provided at circumferentially spaced for the rise seat, one end of the flanged plate is fixedly connected with the anchor ear,
The other end is fixedly connected with the surface of the reinforcing plate.
2. the transformer that rise seat according to claim 1 is reinforced, it is characterised in that the reinforcing plate is welded in the case
The surface of body, the flanged plate are achieved a fixed connection by way of screw threads for fastening with the anchor ear and the reinforcing plate.
3. the transformer that rise seat according to claim 2 is reinforced, it is characterised in that the flanged plate includes main body and set
Two installing plates at the main body both ends are placed in, threaded mounting hole, and described two installing plate phases are offered on the installing plate
It is mutually vertical.
4. the transformer that rise seat according to claim 1 is reinforced, it is characterised in that the inner surface setting of the anchor ear has
Anti-slip veins.
5. the transformer that rise seat according to claim 4 is reinforced, it is characterised in that the inner surface setting of the anchor ear has
Elastic endergonic layer, the anti-slip veins are arranged on the elastic endergonic layer.
6. the transformer that rise seat according to claim 1 is reinforced, it is characterised in that the outer surface of the anchor ear is provided with
Along the circumferential reinforcement of the circumferentially extending of the anchor ear.
7. the transformer that rise seat according to claim 6 is reinforced, it is characterised in that the outer surface of the anchor ear is provided with
Multiple walings vertical with the circumferential reinforcement, the multiple waling are set around the circumferentially-spaced of the anchor ear
Put.
8. the transformer that rise seat according to claim 1 is reinforced, it is characterised in that the multiple flanged plate is relative to institute
The axis for stating anchor ear is obliquely installed.
9. the transformer that rise seat according to claim 1 is reinforced, it is characterised in that be provided with annular on the rise seat
Step, the ring-shaped step abut along the circumferentially extending for raising seat and with the surface of the reinforcing plate.
10. the transformer that rise seat according to claim 1 is reinforced, it is characterised in that also including additional reinforcement component, institute
Stating additional reinforcement component includes：
Clip, it is sheathed on the rise seat and is located at side of the anchor ear away from the reinforcing plate；
Multiple support bars, it is provided at circumferentially spaced around the rise seat, one end of the support bar is rotatablely arranged at described
On clip, the other end and the surface for being rotatablely arranged at the reinforcing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053083.0A CN107610882A (en) | 2017-10-31 | 2017-10-31 | Raise the transformer that seat is reinforced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053083.0A CN107610882A (en) | 2017-10-31 | 2017-10-31 | Raise the transformer that seat is reinforced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107610882A true CN107610882A (en) | 2018-01-19 |
Family
ID=61084375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711053083.0A Pending CN107610882A (en) | 2017-10-31 | 2017-10-31 | Raise the transformer that seat is reinforced |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107610882A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597734A (en) * | 2018-05-29 | 2018-09-28 | 保定天威保变电气股份有限公司 | A kind of UHV converter transformer net side increases the antiseismic structure of seat cage modle and its installation method |
| CN112447361A (en) * | 2019-08-30 | 2021-03-05 | 特变电工沈阳变压器集团有限公司 | Lifting seat support of converter transformer valve |
| CN112614675A (en) * | 2020-11-11 | 2021-04-06 | 山东电力设备有限公司 | Transformer valve sleeve insulating support and installation guide structure assembly and assembly method |
| CN113737894A (en) * | 2021-08-30 | 2021-12-03 | 山东水利建设集团有限公司 | Water supply and drainage system for comprehensive building and construction process thereof |
| CN112447361B (en) * | 2019-08-30 | 2024-05-10 | 特变电工沈阳变压器集团有限公司 | Valve lifting seat support of converter transformer |
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| CN207319838U (en) * | 2017-10-31 | 2018-05-04 | 南方电网科学研究院有限责任公司 | Raise the transformer that seat is reinforced |
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| CN101942810A (en) * | 2010-10-18 | 2011-01-12 | 中铁十九局集团第二工程有限公司 | Independent bridge pier cover beam formwork bracket |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597734A (en) * | 2018-05-29 | 2018-09-28 | 保定天威保变电气股份有限公司 | A kind of UHV converter transformer net side increases the antiseismic structure of seat cage modle and its installation method |
| CN112447361A (en) * | 2019-08-30 | 2021-03-05 | 特变电工沈阳变压器集团有限公司 | Lifting seat support of converter transformer valve |
| CN112447361B (en) * | 2019-08-30 | 2024-05-10 | 特变电工沈阳变压器集团有限公司 | Valve lifting seat support of converter transformer |
| CN112614675A (en) * | 2020-11-11 | 2021-04-06 | 山东电力设备有限公司 | Transformer valve sleeve insulating support and installation guide structure assembly and assembly method |
| CN113737894A (en) * | 2021-08-30 | 2021-12-03 | 山东水利建设集团有限公司 | Water supply and drainage system for comprehensive building and construction process thereof |
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