CN209675038U - A kind of for transformer increases the device of seat reinforcing - Google Patents
A kind of for transformer increases the device of seat reinforcing Download PDFInfo
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- CN209675038U CN209675038U CN201920349881.6U CN201920349881U CN209675038U CN 209675038 U CN209675038 U CN 209675038U CN 201920349881 U CN201920349881 U CN 201920349881U CN 209675038 U CN209675038 U CN 209675038U
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- seat
- sleeve
- transformer
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- reinforced
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Abstract
The utility model discloses a kind of for transformers to increase the device that seat is reinforced, comprising: sleeve, for cover for seat will to be increased in it；The bottom end of the sleeve is used to be fixed on the flange at bottom plate for increasing seat；Damping element is increasing between seat and sleeve for being arranged.For transformer provided in this embodiment increases the device that seat is reinforced and consumes the energy for increasing the seismic response of seat by setting damping element and sleeve, it ensure that the leakproofness for increasing seat, oil leak destruction will not occur, avoid the damage of its electric property, influence its normal work；It will not be destroyed simultaneously to holder structure is increased, lead to the reduction of its mechanical property.In addition, being increased on seat flange at bottom by the way that the bottom end of sleeve to be fixed on, cabinet wall is not damaged, the leakproofness of cabinet will not be destroyed, leads to cabinet oil leak.
Description
Technical field
The utility model relates to bracing means, and in particular to a kind of for transformer increases the device of seat reinforcing.
Background technique
China's project of transmitting and converting electricity has entered super-pressure, extra-high voltage alternating current-direct current engineering maturation developing stage, AC Substation and
A large amount of crucial transformer equipment --- large-scale power transformer and converter power transformer are equipped in DC converter station.These large sizes become
Depressor volume and quality are big, and cost is high, and a large amount of casing is mounted on transformer.The casing of high-power transformer is usually by ring
Shape ceramic insulation wraps up the conducting rod composition at center, plays and connects coil inside transformer-cabinet and outer by transformer-cabinet
Portion's substation equipment electric current, while keeping the insulating effect between central conductor leader and transformer-cabinet and ground.However, in the past
In recent domestic and international earthquake, transformer is subject to a plurality of types of destructions, directly results in project of transmitting and converting electricity stoppage in transit, power grid paralysis
Paralysis causes immeasurable loss.The main Types of the destruction of transformer first is that porcelain bushing destroy: high-power transformer
Fundamental vibration mode is casing and increases seat one around the rocking vibration of seat flange at bottom is increased, and basic frequency is in 1-10Hz range
Interior, when its frequency is often overlapped with seismic acceleration excellent frequency, class resonance, which occurs, for bushing shell for transformer is destroyed.Become at present for large-scale
The reinforcing mode of depressor is mostly based on support, and for being disposed with the voltage limiter of more casings, adaptability is insufficient, and operates multiple
It is miscellaneous.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of for transformer is provided increases seat and add
Solid device, to reduce amplification of the dais to seismic response, to reduce the seismic response of casing.
To achieve the above object, the technical solution of the utility model is:
A kind of for transformer increases the device of seat reinforcing, comprising:
Sleeve, for cover for seat will to be increased in it；The bottom end of the sleeve is used to be fixed on the flange at bottom for increasing seat
On plate；
Damping element is increasing between seat and sleeve for being arranged.
The outer surface of the sleeve is provided with ribbed stiffener.
The sleeve is higher than the raising seat.
The bottom end of the sleeve is fixed on by welding on the flange at bottom plate for increasing seat.
The sleeve is made of two semi-cavities；Two lateral end panels of the semi-cavity extend outwardly to form otic placode；In
Mounting hole is distributed on otic placode, so that two semi-cavities are installed to form sleeve, cover for seat will be increased mounted in set for installing bolt
In cylinder.
The damping element is increasing between seat and sleeve for being uniformly covered with setting.
The damping element is damping spring.
The utility model compared with prior art, the beneficial effect is that:
For transformer provided in this embodiment increases the device that seat is reinforced and is consumed by setting damping element and sleeve
The energy for increasing the seismic response of seat ensure that the leakproofness for increasing seat, and oil leak destruction will not occur, avoid its electric appliance
The damage of energy, influences its normal work；It will not be destroyed simultaneously to holder structure is increased, lead to the reduction of its mechanical property.This
Outside, it is increased on seat flange at bottom by the way that the bottom end of sleeve to be fixed on, cabinet wall is not damaged, cabinet will not be destroyed
Leakproofness, lead to cabinet oil leak.
Detailed description of the invention
Fig. 1 is structural schematic diagram after the jacketed cylinder of high-power transformer；
Fig. 2 is bush attaching structure schematic diagram；
Fig. 3 is tube-in-tube structure schematic diagram；
Fig. 4 is damping spring schematic diagram；
In figure: 1, bushing shell for transformer；2, seat is increased；3, sleeve, 4, damping element；5, flanged plate；6, cabinet；7, otic placode.
Specific embodiment
The content of the utility model is described in further details with reference to the accompanying drawings and detailed description.
Embodiment:
Under seismic loading, the fundamental vibration mode of common high-power transformer is casing and increases seat one around raising
Seat flange at bottom rocking vibration, basic frequency is within the scope of 1-10Hz, and seismic wave reaction spectrum peak section is mostly 1-10Hz, this makes
It is larger to obtain bushing shell for transformer dynamic response, bushing shell for transformer is easy to happen class resonance and destroys.
In order to reduce the generation that class resonance breakoff phenomenon occurs for bushing shell for transformer, refering to fig. 1 shown in -4, the present embodiment provides
For transformer increase seat reinforce device mainly include sleeve 3 and damping element 4.
Wherein, in specific installation in application, installation sleeve 3, the bottom end of sleeve 3 then and rise around power transformer enclosure 2
5 phase of flange at bottom plate of dais 2 is fixed, and damping element 4 is then arranged between raising seat 2 and sleeve 3.In this way, working as spot
When shake, the deformation for increasing seat 3 can then pass to sleeve 3 by damping element 4, and the deformation of damping element 4 will generate huge
Damping force increases the deformation of seat 2 to limit, thus the swing and deformation of limiting transformer casing 1, to consume in itself
The energy for increasing 2 seismic response of seat, reduces the energy of 1 Seismic input of bushing shell for transformer, and then can reduce bushing shell for transformer 1
The generation of class resonance breakoff phenomenon occurs.That is, the present apparatus is mainly from the failure mechanism of transformer seismic response,
The seismic energy of seat 2 is increased by consumption, to reduce the seismic energy input of bushing shell for transformer 1, it is dynamic to reduce bushing shell for transformer 1
Force-responsive prevents bushing shell for transformer 1 from destroying because Root Stress is excessive.
It follows that for transformer provided in this embodiment, which increases the device that seat is reinforced, passes through setting 4 He of damping element
Sleeve 3 come consume increase seat seismic response energy, ensure that increase seat leakproofness, will not occur oil leak destruction, avoid
The damage for causing its electric property influences its normal work；It will not be destroyed simultaneously to holder structure is increased, lead to its mechanical property
The reduction of energy.In addition, being increased on seat flange at bottom by the way that the bottom end of sleeve to be fixed on, not to 6 inner wall of the cabinet of transformer
It damages, the leakproofness of cabinet 6 will not be destroyed, lead to 6 oil leak of cabinet.
One kind as the present embodiment is preferably provided with ribbed stiffener in the outer surface of the sleeve 3, to improve its rigidity.And
The height of the sleeve 3, which is slightly higher than, increases seat 2, to guarantee that the deformation for increasing seat 2 can all pass through resistance when earthquake occurs
Buddhist nun's element 4 passes to sleeve, and the bottom end of sleeve 3 is then to be fixed on the flange at bottom plate 5 for increasing seat 2 by welding
, usually increase that 2 flange at bottom plate of seat, 5 thickness are big, and rigidity is very big, by weld connect with sleeve 3 will not influence its rigidity and
Performance.
Preferably, which is made of another kind as the present embodiment two semi-cavities, two lateral end panels of the semi-cavity
It extends outwardly to form otic placode 7, mounting hole is distributed on otic placode, to be used to install bolt, so that two semi-cavities install shapes
At sleeve 3, seat 2 will be increased and be sleeved in sleeve 3.That is, sleeve 3 is connected by screw bolts by two semi-cavities
, adjustable section can ensure that the convenience and safety of installation to existing field for Large Transformer construction and installation.Specifically,
Tube-in-tube structure mode that the present embodiment is enumerated is as shown in figure 3, be to be formed by two semicolumn cavitys, but some other
In embodiment, the shape of sleeve can be arranged according to the shape for increasing seat 2, be sleeved in it and can as long as seat 2 can will be increased
Damping element 4 is installed.
As the present embodiment another preferably, the damping element 4 be uniformly be covered with setting increase seat 2 and sleeve 3 it
Between, to guarantee that the deformation for increasing seat 2 can pass to sleeve 3 uniformly across damping element 4 when earthquake occurs.And it hinders
Buddhist nun's element 4 number and the form at interval and the dynamic characteristics of transformer it is related, by rationally design, choose optimal case, can
Significantly compared with the seismic response of small casing.Specifically, in the present embodiment, damping element 4 is using damping spring.
For above-described embodiment simply to illustrate that the technical ideas and features of the present invention, its purpose is allows this field
Interior those of ordinary skill can understand the content of the utility model and implement accordingly, can not limit the utility model with this
Protection scope.The equivalent changes or modifications that all essence according to the content of the present invention is made, should all cover in this reality
With in novel protection scope.
Claims (7)
1. a kind of for transformer increases the device that seat is reinforced characterized by comprising
Sleeve, for cover for seat will to be increased in it；The bottom end of the sleeve is used to be fixed on the flange at bottom plate for increasing seat；
Damping element is increasing between seat and sleeve for being arranged.
2. for transformer as described in claim 1 increases the device that seat is reinforced, which is characterized in that the outer surface of the sleeve
It is provided with ribbed stiffener.
3. for transformer as described in claim 1 increases the device that seat is reinforced, which is characterized in that the sleeve is higher than described
Increase seat.
4. for transformer as described in claim 1 increases the device that seat is reinforced, which is characterized in that the bottom end of the sleeve is logical
The mode for crossing welding is fixed on the flange at bottom plate for increasing seat.
5. for transformer as described in claim 1-4 is any increases the device that seat is reinforced, which is characterized in that the sleeve by
Two semi-cavity compositions；Two lateral end panels of the semi-cavity extend outwardly to form otic placode；Mounting hole is distributed on otic placode,
So that two semi-cavities are installed to form sleeve, cover for seat will be increased in sleeve for installing bolt.
6. for transformer as described in claim 1 increases the device that seat is reinforced, which is characterized in that the damping element is used for
Uniformly it is covered with setting increasing between seat and sleeve.
7. for transformer as described in claim 1 or 6 increases the device that seat is reinforced, which is characterized in that the damping element
For damping spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920349881.6U CN209675038U (en) | 2019-03-19 | 2019-03-19 | A kind of for transformer increases the device of seat reinforcing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920349881.6U CN209675038U (en) | 2019-03-19 | 2019-03-19 | A kind of for transformer increases the device of seat reinforcing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209675038U true CN209675038U (en) | 2019-11-22 |
Family
ID=68572082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920349881.6U Active CN209675038U (en) | 2019-03-19 | 2019-03-19 | A kind of for transformer increases the device of seat reinforcing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209675038U (en) |
-
2019
- 2019-03-19 CN CN201920349881.6U patent/CN209675038U/en active Active
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