CN211699889U - Transformer conservator supporting structure with energy dissipation and shock absorption functions - Google Patents
Transformer conservator supporting structure with energy dissipation and shock absorption functions Download PDFInfo
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- CN211699889U CN211699889U CN201921962911.7U CN201921962911U CN211699889U CN 211699889 U CN211699889 U CN 211699889U CN 201921962911 U CN201921962911 U CN 201921962911U CN 211699889 U CN211699889 U CN 211699889U
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Abstract
The utility model discloses a transformer conservator supporting structure with energy dissipation and shock absorption functions, which comprises a vertical supporting piece, a viscous damper and a universal shaft connector capable of rotating with three degrees of freedom; the vertical supporting piece comprises four angle steels, each two angle steels are in a group, the upper ends of the two groups of angle steels are respectively welded with the two ends of the oil conservator, and the lower ends of the two groups of angle steels are respectively welded on the top plate of the transformer box body; the viscous damper comprises a longitudinal damper and a transverse damper, and the universal shaft connector comprises a longitudinal damping universal joint and a transverse damping universal joint; the upper end of the longitudinal damper is connected with the lower surface of the oil conservator through a longitudinal damping universal joint, and the lower end of the longitudinal damper is connected with a top plate of the transformer box body through a longitudinal damping universal joint; two ends of the transverse damper are respectively connected with two angle steels positioned on the same side of the oil conservator through a transverse damping universal joint, and the transverse damper is obliquely arranged. The support structure can reduce the earthquake response of the oil conservator, improve the earthquake resistance of the oil conservator and avoid the damage of the oil conservator.
Description
Technical Field
The utility model relates to a transformer energy dissipation shock attenuation equipment technical field especially relates to a transformer conservator bearing structure with energy dissipation shock-absorbing function.
Background
As a key device of the power system, the operation state of the transformer greatly affects the stability of the whole power system to a certain extent. The large transformer equipment has the characteristics of large mass, high gravity center, low material strength and the like, so the large transformer equipment has extremely high vulnerability in earthquakes. From the results of seismic disaster investigation of the past, large transformers all suffer damage to different degrees. Especially, in several previous earthquakes, such as the down mountain earthquake in 1976, the osaka spirit earthquake in 1995, the venturi earthquake in 2008, the chile earthquake in 2010, the east japan earthquake in 2011, and the like, a large number of transformers suffer from earthquake damage, which causes a series of serious consequences. Once the transformer is damaged, large-scale power failure is directly caused, and various related facilities cannot normally operate, so that huge economic loss is caused, and great obstruction is caused to recovery work after disasters. Due to the limitation of resource distribution, many transmission projects in China need to cross over earthquake-prone areas, for example, a new loose converter station in the Yunnan northwest ultrahigh voltage direct current transmission project is an ultrahigh voltage converter station built in areas with high earthquake intensity, and thus extremely high requirements are provided for the earthquake-resistant performance of transformer equipment.
The oil conservator is an important part of a large transformer and has the function of storing insulating oil, so that the interior of the transformer is always filled with the insulating oil, and the requirement on the insulating property required by work is met. Because the liquid level of the insulating oil of the transformer needs to be kept stable, the oil conservator must be arranged at a position higher than the transformer and is generally arranged on a top plate of the transformer and lifted up by a supporting structure to reach the required height, so that a liquid level difference is formed, and the supply of the insulating oil is ensured.
In the past, the situation that the oil conservators are cracked, leak oil and even fall off occurs in many earthquakes, so that insulating oil in the transformer is lacked, the reduction of insulating performance is caused, and finally, the flashover, short circuit and even fire explosion of the transformer are caused. The main causes of damage are two: firstly, the existing transformer often adopts a rigid support to make an oil conservator overhead, so that the lower support is broken due to overlarge stress under the action of an earthquake, and even the oil conservator is torn; secondly, the length-width ratio of the oil conservator is large, the torsion resistance is weak, and large torsion can be generated under the action of an earthquake, so that the damage of the oil conservator is aggravated. Therefore, the oil conservator supporting system is improved, so that the oil conservator supporting system has the energy dissipation and shock absorption effects and the torsion resistance, and has important significance for avoiding the damage of the oil conservator.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above-mentioned prior art, provide a transformer conservator bearing structure with energy dissipation shock-absorbing function.
The utility model discloses a realize through following technical scheme: a transformer conservator supporting structure with energy dissipation and shock absorption functions comprises a vertical supporting piece, a viscous damper and a universal shaft connector capable of rotating in three degrees of freedom; the vertical supporting piece comprises four angle steels, each two angle steels are in one group, the upper ends of the two groups of angle steels are respectively welded with the two ends of the oil conservator, and the lower ends of the two groups of angle steels are respectively welded on the top plate of the transformer box body; the viscous damper comprises a longitudinal damper and a transverse damper, and the universal shaft connector comprises a longitudinal damping universal joint and a transverse damping universal joint; the upper end of the longitudinal damper is connected with the lower surface of the oil conservator through the longitudinal damping universal joint, and the lower end of the longitudinal damper is connected with the top plate of the transformer box body through the longitudinal damping universal joint; and two ends of the transverse damper are respectively connected with two angle steels positioned on the same side of the oil conservator through the transverse damping universal joint, and the transverse damper is obliquely arranged.
The vertical supporting piece is used for supporting the vertical gravity of the oil conservator; the viscous damper can realize the energy dissipation and shock absorption functions and reduce the motion energy, thereby reducing the torsional force generated by the earthquake and having the torsional resistance; the universal shaft connector is used for installing the viscous damper and can provide rotation with three degrees of freedom.
The two transverse dampers are arranged along the width direction of the oil conservator and are respectively positioned at the two ends of the oil conservator. And the two ends of the oil conservator are provided with the transverse dampers, so that the two sides can be uniformly shared and the dynamic response of the oil conservator is reduced.
The longitudinal dampers are arranged in two, the longitudinal dampers are distributed along the length direction of the oil conservator and are arranged in a herringbone mode, the upper ends of the longitudinal dampers are close to and connected to the middle of the lower side face of the oil conservator, and the lower ends of the longitudinal dampers are connected to a top plate of the transformer box body located below the two ends of the oil conservator. The longitudinal dampers are arranged in a herringbone mode, the resultant force directions of the longitudinal dampers are guided to the transformer, and the longitudinal dampers are used for resisting torsional force generated by an earthquake.
The longitudinal damping universal joint comprises a first lug plate, a first rotating bearing, a first pin shaft and a connecting plate; the first rotating bearing is welded on a top plate of the transformer box body, the connecting plate is installed on the first rotating bearing and can rotate around the first rotating bearing in three degrees of freedom, and the first lug plate is connected to the connecting plate in a penetrating mode through the first pin shaft; the first ear plate is connected to an end of the longitudinal damper.
The transverse damping universal joint comprises a second lug plate, a second rotating bearing and a second pin shaft; the second rotating bearing is welded on the angle steel, and the second lug plate is arranged on the second rotating shaft and can rotate around the second rotating shaft in three degrees of freedom; and the second lug plate is connected with the end part of the transverse damper through the second pin shaft.
The angle steel is equal-edge angle steel.
Compared with the prior art, the utility model has the advantages of: the viscous damper is applied to the oil conservator supporting structure, so that the supporting structure with the originally weaker energy consumption capability has stronger energy consumption capability. Under the action of an earthquake, the damper generates damping force to consume earthquake energy, the dynamic response of the oil conservator is reduced, and the damage of the oil conservator is avoided. Meanwhile, the transverse dampers are positioned close to the two ends of the oil conservator, when the oil conservator is twisted under the action of an earthquake, the transverse dampers can inhibit the twisting motion of the oil conservator, and the oil conservator is prevented from being seriously damaged due to the twisting action; this bearing structure can increase substantially the shock resistance of conservator.
Drawings
Fig. 1 is an installation diagram of an embodiment of the present invention;
fig. 2 is a partial schematic view of an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a longitudinal damper according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a transverse damper according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a longitudinal damping universal joint according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a transverse damping gimbal according to an embodiment of the present invention.
The reference numerals in the drawings mean: 1. an oil conservator; 2. a transformer tank body; 3. a vertical support; 4. a longitudinal damper; 5. a lateral damper; 6. a longitudinal damping gimbal; 7. a transverse damping gimbal; 8. a first ear plate; 9. a first rotating bearing; 10. a first pin shaft; 11. a connecting plate; 12. a second ear panel; 13. a second rotary bearing; 14. and a second pin shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Examples
Referring to fig. 1 to 6, a supporting structure of a transformer conservator 1 with energy dissipation and shock absorption functions comprises a vertical supporting member 3, a viscous damper and a universal shaft connector capable of rotating with three degrees of freedom; the vertical supporting piece 3 comprises four angle steels, each two angle steels are in a group, the upper ends of the two groups of angle steels are respectively welded with the two ends of the oil conservator 1, and the lower ends of the two groups of angle steels are respectively welded on the top plate of the transformer tank body 2; the viscous damper comprises a longitudinal damper 4 and a transverse damper 5, and the universal shaft connector comprises a longitudinal damping universal joint 6 and a transverse damping universal joint 7; the upper end of the longitudinal damper 4 is connected with the lower surface of the oil conservator 1 through a longitudinal damping universal joint 6, and the lower end of the longitudinal damper is connected with the top plate of the transformer tank 2 through the longitudinal damping universal joint 6; two ends of the transverse damper 5 are respectively connected with two angle steels positioned on the same side of the oil conservator 1 through a transverse damping universal joint 7, and the transverse damper 5 is obliquely arranged.
The vertical supporting piece 3 is used for supporting the vertical gravity of the oil conservator 1; the viscous damper can realize the energy dissipation and shock absorption functions and reduce the motion energy, thereby reducing the torsional force generated by the earthquake and having the torsional resistance; the universal shaft connector is used for installing the viscous damper and can provide rotation with three degrees of freedom.
The two transverse dampers 5 are arranged along the width direction of the oil conservator 1 and are respectively positioned at the two ends of the oil conservator 1. The two ends of the oil conservator 1 are provided with the transverse dampers 5, so that the two ends can be shared uniformly and the dynamic response of the oil conservator 1 is reduced.
The two longitudinal dampers 4 are arranged, the two longitudinal dampers 4 are distributed along the length direction of the oil conservator 1 and are arranged in a herringbone mode, the upper ends of the two longitudinal dampers 4 are close to and connected with the middle of the lower side face of the oil conservator 1, and the lower ends of the two longitudinal dampers are connected to the top plate of the transformer box body 2 below the two ends of the oil conservator 1. The longitudinal dampers 4 arranged in a herringbone manner guide the resultant force direction thereof to the transformer, and are used for resisting torsional force generated by earthquake.
The longitudinal damping universal joint 6 comprises a first lug plate 8, a first rotating bearing 9, a first pin shaft 10 and a connecting plate 11; the first rotating bearing 9 is welded on the top plate of the transformer box body 2, the connecting plate 11 is installed on the first rotating bearing 9 and can rotate around the first rotating bearing 9 with three degrees of freedom, and the first lug plate 8 is connected on the connecting plate 11 through the first pin shaft 10 in a penetrating mode; the first ear plate 8 is connected to the end of the longitudinal damper 4.
The transverse damping universal joint 7 comprises a second lug plate 12, a second rotating bearing 13 and a second pin shaft 14; the second rotating bearing 13 is welded on the angle steel, and the second lug plate 12 is arranged on the second rotating shaft and can rotate around the second rotating shaft with three degrees of freedom; the second ear plate 12 is connected to the end of the transverse damper 5 by a second pin 14. The connection part of the angle steel and the transverse damping universal joint 7 is properly widened to form an installation part, the second rotating bearing 13 is welded on the installation part of the angle steel, and the connection strength can be ensured due to the widening of the angle steel.
The angle steel is equal-edge angle steel.
The specific installation method of this embodiment is as follows:
in a first step, the vertical supports 3 are welded. The lower end of the angle steel is welded with the top plate of the transformer box body 2, and the oil conservator 1 is welded with the upper end of the angle steel. To this end, the mounting of the vertical support 3 with the conservator 1 is completed.
In the second step, the longitudinal damper 4 is installed. Two first rotating bearings 9 are respectively welded on the bottom surface of the oil conservator 1 and the top surface of the transformer tank body 2, the first rotating bearings 9 on the oil conservator 1 are arranged close to the middle part of the oil conservator 1, and the first rotating bearings 9 on the transformer tank body 2 are arranged close to the root parts of the angle steels; welding a connecting plate 11 on the first rotating bearing 9; welding the first ear plates 8 to both ends of the longitudinal damper 4; the first ear plate 8 is connected with the connecting plate 11 through a first pin shaft 10. At this point, the installation of the longitudinal damper 4 is completed.
Third, the lateral damper 5 is installed. Second rotating bearings 13 are respectively welded at the upper parts of the rear side angle steels and the roots of the front side angle steels; welding a second lug plate 12 on the second rotary bearing 13; the second ear plate 12 is connected to both ends of the lateral damper 5 by a second pin 14. To this end, the installation of the lateral damper 5, i.e., the installation of the entire energy-dissipating support structure, is completed.
Under the action of an earthquake, the earthquake force can cause the horizontal displacement of the oil conservator 1, so that the vertical support (angle steel) is subjected to horizontal shearing deformation, the longitudinal damper 4 and the transverse damper 5 are stretched or compressed, the damping force is generated, the earthquake energy is consumed, and the earthquake response is reduced. Under the action of an earthquake, the oil conservator 1 can generate torsional motion, so that the vertical supports (angle steels) at two ends are deformed towards opposite directions respectively, the transverse dampers 5 are stretched and compressed, damping force opposite to the deformation direction is generated, the opposite damping force of the two transverse dampers 5 forms torque, the torque is opposite to the torsion direction of the oil conservator 1, and the effect of inhibiting the torsion effect is achieved.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included within the scope of the present invention.
Claims (6)
1. The utility model provides a transformer conservator bearing structure with energy dissipation shock-absorbing function which characterized in that: the universal shaft connecting device comprises a vertical supporting piece, a viscous damper and a universal shaft connector capable of rotating in three degrees of freedom; the vertical supporting piece comprises four angle steels, each two angle steels are in one group, the upper ends of the two groups of angle steels are respectively welded with the two ends of the oil conservator, and the lower ends of the two groups of angle steels are respectively welded on the top plate of the transformer box body; the viscous damper comprises a longitudinal damper and a transverse damper, and the universal shaft connector comprises a longitudinal damping universal joint and a transverse damping universal joint; the upper end of the longitudinal damper is connected with the lower surface of the oil conservator through the longitudinal damping universal joint, and the lower end of the longitudinal damper is connected with the top plate of the transformer box body through the longitudinal damping universal joint; and two ends of the transverse damper are respectively connected with two angle steels positioned on the same side of the oil conservator through the transverse damping universal joint, and the transverse damper is obliquely arranged.
2. The transformer conservator supporting structure with energy dissipation and shock absorption functions as claimed in claim 1, wherein: the two transverse dampers are arranged along the width direction of the oil conservator and are respectively positioned at the two ends of the oil conservator.
3. The transformer conservator supporting structure with energy dissipation and shock absorption functions as claimed in claim 1, wherein: the longitudinal dampers are arranged in two, the longitudinal dampers are distributed along the length direction of the oil conservator and are arranged in a herringbone mode, the upper ends of the longitudinal dampers are close to and connected to the middle of the lower side face of the oil conservator, and the lower ends of the longitudinal dampers are connected to a top plate of the transformer box body located below the two ends of the oil conservator.
4. The transformer conservator supporting structure with energy dissipation and shock absorption functions as claimed in claim 1, wherein: the longitudinal damping universal joint comprises a first lug plate, a first rotating bearing, a first pin shaft and a connecting plate; the first rotating bearing is welded on a top plate of the transformer box body, the connecting plate is installed on the first rotating bearing and can rotate around the first rotating bearing in three degrees of freedom, and the first lug plate is connected to the connecting plate in a penetrating mode through the first pin shaft; the first ear plate is connected to an end of the longitudinal damper.
5. The transformer conservator supporting structure with energy dissipation and shock absorption functions as claimed in claim 1, wherein: the transverse damping universal joint comprises a second lug plate, a second rotating bearing and a second pin shaft; the second rotating bearing is welded on the angle steel, and the second lug plate is arranged on the second rotating shaft and can rotate around the second rotating shaft in three degrees of freedom; and the second lug plate is connected with the end part of the transverse damper through the second pin shaft.
6. The transformer conservator supporting structure with energy dissipation and shock absorption functions as claimed in claim 1, wherein: the angle steel is equal-edge angle steel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921962911.7U CN211699889U (en) | 2019-11-13 | 2019-11-13 | Transformer conservator supporting structure with energy dissipation and shock absorption functions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921962911.7U CN211699889U (en) | 2019-11-13 | 2019-11-13 | Transformer conservator supporting structure with energy dissipation and shock absorption functions |
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| CN211699889U true CN211699889U (en) | 2020-10-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324841A (en) * | 2020-10-29 | 2021-02-05 | 同济大学 | Damping device for vibration control of wall bushing |
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2019
- 2019-11-13 CN CN201921962911.7U patent/CN211699889U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324841A (en) * | 2020-10-29 | 2021-02-05 | 同济大学 | Damping device for vibration control of wall bushing |
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