CN207409351U - Transformer with reinforced radiator - Google Patents

Abstract

The utility model relates to a radiator-reinforced transformer. Including box body, shock absorber bracket and radiator. The shock-absorbing support includes a transverse support rod, an oblique support rod and a damper, so the shock-absorbing support can produce slight deformation in a vibration environment. Under the action of an earthquake, the radiator will vibrate within a certain range with the shock-absorbing bracket, so as to avoid falling off from the box due to the rupture of the rigid connection. Moreover, the cabinet, radiator and shock absorber can form a structure similar to a tuned mass damper, and the tuned mass damper can play the role of energy dissipation and shock absorption, thereby reducing the overall dynamic response. Further, the radiator and the accommodation cavity are connected flexibly and have degrees of freedom. Therefore, during the vibration process, the radiator will always be in communication with the storage cavity, thereby avoiding oil leakage and the like. Therefore, the anti-seismic performance of the transformer reinforced by the radiator is effectively improved.

Description

Radiator reinforced transformer

technical field

The utility model relates to the technical field of power transmission and transformation, in particular to a radiator-reinforced transformer.

Background technique

Large-scale transformers are key substation equipment in power transmission and transformation projects. They play the role of increasing the voltage at the power station and reducing the voltage at the user end, thereby reducing the loss of electric energy in the transmission link. Large-scale transformers are usually composed of iron cores and coils, boxes filled with mineral oil and oil conservators, risers, radiators, bushings of different voltage levels and other components.

However, in geological disasters such as earthquakes, transformers installed outdoors are vulnerable to different types of damage, resulting in the outage of power transmission and transformation projects and the paralysis of the power grid, resulting in immeasurable losses. Among them, the radiator is generally arranged on the outside of the box body and communicates with the oil tank inside the box body. The high-temperature oil will take out the heat and dissipate the heat in the radiator.

At present, the heat sink in the transformer is generally installed on the outside of the box through a rigid bracket. When an earthquake occurs, due to the large mass of the radiator, it will generate a large inertial force, while the ordinary rigid connection will produce a large dynamic response, which will lead to oil leakage damage at the radiator connection due to excessive stress. Therefore, the existing transformers have poor seismic performance.

Utility model content

Based on this, it is necessary to provide a radiator-reinforced transformer with better anti-seismic performance to solve the problem of poor anti-seismic performance of existing transformers.

A radiator reinforced transformer comprising:

A box with a receiving cavity;

Shock mount, including:

Two horizontal support rods arranged in parallel and at intervals, the two ends of the horizontal support rods are respectively provided with a fixing part and a mounting part;

Two oblique support rods arranged crosswise, one end of the oblique support rod is connected to the installation part of one of the lateral support rods, and the other end is connected to the fixing part of the other lateral support rod;

a damper disposed on the two lateral support rods and the two oblique support rods, so that the lateral support rods and the oblique support rods are stretchable along the length direction; and

a radiator installed on the installation part;

Wherein, the fixing part is installed on the surface of the box to install the radiator on the box, and the radiator is in flexible communication with the receiving cavity.

In one of the embodiments, a plurality of dampers are arranged on the two transverse support rods and the two oblique support rods, and the plurality of dampers are connected in series.

In one of the embodiments, the horizontal support rod is rotatably connected to the oblique support rod.

In one of the embodiments, the horizontal support rod is pivotally or hingedly connected to the oblique support rod.

In one of the embodiments, the shock absorbing bracket further includes a vertical support rod, and both ends of the vertical support rod are respectively fixedly connected to the installation parts of the two horizontal support rods.

In one of the embodiments, there are multiple radiators, and the multiple radiators are arranged at intervals around the circumference of the box.

In one of the embodiments, the number of the shock absorbing brackets corresponds to the number of the radiators one by one, and a plurality of the shock absorbing brackets are arranged at intervals around the circumference of the box.

In one of the embodiments, a corrugated pipe is further included, and the radiator communicates with the tank through the corrugated pipe.

In one of the embodiments, a reinforcing plate is further included, the reinforcing plate is covered on the surface of the box body, and the fixing part is installed on the reinforcing plate.

In one embodiment, the reinforcing plate is welded to the surface of the box body, and the fixing part is screwed and fastened to the reinforcing plate.

For the above-mentioned transformer reinforced by the radiator, the shock absorbing bracket includes a transverse support rod, an oblique support rod and a damper, so the shock absorbing bracket can produce slight deformation in a vibration environment. Under the action of an earthquake, the radiator will vibrate within a certain range with the shock-absorbing bracket, so as to avoid falling off from the box due to the rupture of the rigid connection. Moreover, the cabinet, radiator and shock absorber can form a structure similar to a tuned mass damper, and the tuned mass damper can play the role of energy dissipation and shock absorption, thereby reducing the overall dynamic response. Further, the radiator and the accommodation cavity are connected flexibly and have degrees of freedom. Therefore, during the vibration process, the radiator will always be in communication with the storage cavity, thereby avoiding oil leakage and the like. Therefore, the anti-seismic performance of the transformer reinforced by the radiator is effectively improved.

Description of drawings

Fig. 1 is the structural representation of the transformer reinforced by radiator in the preferred embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a shock absorbing bracket in a transformer reinforced with a radiator shown in FIG. 1 .

Detailed ways

In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present utility model are provided in the accompanying drawings. However, the invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 , the radiator-reinforced transformer 100 in a preferred embodiment of the present invention includes a box body 110 , a shock-absorbing bracket 120 and a radiator 130 .

The box body 110 has a receiving cavity. Wherein, the box body 110 is generally made of metal, which has high hardness and mechanical strength. Components such as a wire core and an oil tank (not shown) for accommodating heat-conducting oil are arranged in the accommodation cavity. According to the shape of the transformer, the box body 110 is generally a cubic hollow structure. In addition, the outer surface of the box body 110 is also provided with other electrical components such as raised seats and ceramic sleeves.

One end of the shock absorbing bracket 120 is installed on the box body 110 , and the other end is fixedly connected with the radiator 130 , so that the radiator 130 is installed on the box body 110 . Wherein, the radiator 130 communicates with the receiving cavity of the box body 110 . Specifically, the radiator 130 communicates with the oil tank in the accommodation cavity. Therefore, the heat transfer oil that has absorbed the heat inside the box body 110 is conducted to the radiator 130 and can dissipate heat through the radiator 130 , thereby reducing the temperature inside the box body 110 .

The radiator 130 can be a structure such as row tubes, fins, coils, etc., and has a larger heat dissipation area. Further, the radiator 130 is in flexible communication with the receiving chamber. The flexible communication means that the radiator 130 has a certain degree of freedom relative to the box body 110 under the condition of maintaining communication with the receiving cavity. Therefore, even if the radiator 130 shakes relative to the box body 110 , the radiator 130 will not be detached from the box body 110 , thereby avoiding oil leakage and the like.

Specifically, in this embodiment, the radiator-reinforced transformer 100 further includes a bellows 140 . The radiator 130 communicates with the box body 110 through the bellows 140 .

The bellows 140 has the advantages of stretchability, good durability and high strength. Therefore, the bellows 140 can effectively ensure the service life while satisfying the flexible communication between the radiator 130 and the receiving cavity. It should be pointed out that the radiator 130 and the box body 110 can also communicate with each other through a rubber hose or the like.

Please also refer to FIG. 2 , the shock absorber 120 includes a lateral support rod 121 , an oblique support rod 123 and a damper 125 .

There are two transverse support rods 121, and the two transverse support rods 121 are arranged in parallel and at intervals. Further, the two ends of the transverse support bar 121 are respectively provided with a fixing part (not shown in the figure) and a mounting part 1212 . Wherein, the radiator 130 is installed on the installation part 1212 , and the fixing part is installed on the surface of the box body 110 , so as to install the radiator 130 on the box body 110 . Specifically, the transverse support rod 121 can be connected with the box body 110 and the radiator 130 through clamping, screw fastening and other means. The transverse support rod 121 is in the shape of a strut and can be made of a metal material with higher strength.

There are two oblique support rods 123, and the two oblique support rods 123 are arranged crosswise. The shape and material of the oblique support rod 123 and the lateral support rod 121 are the same. Further, one end of the oblique support rod 123 is connected to the mounting portion 1212 of one of the lateral support rods 121 , and the other end is connected to the fixing portion of the other lateral support rod 121 . Specifically, the oblique support rod 123 can be fixedly connected with the lateral support rod 121, and can also be flexibly connected. The oblique support rod 123 can support the lateral support rod 121 obliquely. Moreover, the lateral support rods 121 and the oblique support rods 123 cooperate with the surface of the box body 110 to form a triangular structure so as to provide stable support for the radiator 130 .

The damper 125 may be a spring damper, a hydraulic damper, or the like. There are multiple dampers 125, specifically at least four. The damper 125 is disposed on the two transverse support rods 121 and the two oblique support rods 123 , so that the lateral support rods 121 and the oblique support rods 123 are stretchable along the length direction. Specifically, the transverse support rod 121 and the oblique support rod 123 may include multiple parts, and the multiple parts are connected by a damper 125 so as to have a telescopic function.

Therefore, when subjected to vibration, the shock-absorbing bracket 120 expands and contracts through the lateral support rod 121 and the oblique support rod 123 to absorb and eliminate part of the kinetic energy. The shock-absorbing bracket 120 can produce slight deformation in a vibration environment. Under the action of an earthquake, the radiator 130 will vibrate within a certain range along with the shock-absorbing bracket 120 , so as to avoid falling off from the box body 110 due to the rupture of the rigid connection. Moreover, the box body 110, the radiator 130 and the shock absorber 120 can form a structure similar to a tuned mass damper, and the tuned mass damper can play the role of energy dissipation and shock absorption, thereby reducing the overall dynamic response. Further, the radiator 130 is in flexible communication with the receiving cavity, and has a degree of freedom. Therefore, during the vibration process, the radiator 130 will always be in communication with the receiving chamber, so as to avoid oil leakage and the like.

In addition, since the radiator 130 , which is tuned to the mass of the box body 110 , moves substantially on its upper part, it can absorb and dissipate the vibration energy of the box body 110 caused by earthquakes, thereby reducing or even suppressing the vibration of the box body 110 . Therefore, damage to electrical components such as ceramic bushings on the box body 110 due to excessive vibration can be avoided.

In this embodiment, a plurality of dampers 125 are provided on the two transverse support rods 121 and the two oblique support rods 123 , and the plurality of dampers 125 are connected in series.

Specifically, multiple dampers 125 connected in series can function as multi-stage shock absorbers. Therefore, in a vibration environment, the expansion and contraction process of the lateral support rod 121 and the oblique support rod 123 is more stable, so that the shock absorption and energy dissipation effect of the shock absorption bracket 120 is better.

In this embodiment, the transverse support rod 121 is rotatably connected to the oblique support rod 123 . Further, in this implementation, the transverse support rod 121 is pivotally or hingedly connected to the oblique support rod 123 .

In a vibration environment, the shock-absorbing bracket 120 will vibrate within a certain range. Therefore, the relative positions of the transverse support bar 121 and the oblique support bar 123 will change. If the two are rigidly connected, when the vibration amplitude exceeds the bearing range of the rigid connection, the connection between the lateral support rod 121 and the oblique support rod 123 will break, and the radiator 130 will fall off.

The rotatable connection is a flexible connection, and the connection between the lateral support rod 121 and the oblique support rod 123 can rotate with vibration. Therefore, the energy inside the shock-absorbing bracket 120 can be released during the vibration process, thereby effectively preventing the shock-absorbing bracket 120 from being damaged.

In this embodiment, the shock absorber bracket 120 further includes a vertical support rod 127 . Both ends of the vertical support rod 127 are respectively fixedly connected to the mounting portions 1212 of the two horizontal support rods 121 .

The shape and material of the vertical support bar 127 and the horizontal support bar 121 are the same. Specifically, the vertical support rod 127 can vertically support the two horizontal support rods 121, and form more supporting triangular structures in the shock-absorbing bracket 120, thereby further improving the strength and anti-seismic performance of the shock-absorbing bracket 120 .

In this embodiment, there are multiple radiators 130 , and the multiple radiators 130 are arranged at intervals around the circumference of the box body 110 . Further, in this embodiment, the number of shock absorbing brackets 120 corresponds to the number of radiators 130 one by one, and a plurality of shock absorbing brackets 120 are arranged at intervals around the circumference of the box body 110 .

Specifically, multiple radiators 130 and shock absorbing brackets 120 can form multiple tuned mass damper-like structures around the box body 110 . Therefore, the resonance generated in the vibration environment is more uniform, thereby further improving the energy dissipation and shock absorption effect.

In this embodiment, the radiator-reinforced transformer 100 further includes a reinforcing plate (not shown in the figure). The reinforcement board is covered on the surface of the box body 110 , and the fixing part is installed on the reinforcement board.

Specifically, the material of the reinforcing plate may be the same as that of the box body 110 . The reinforcing plate can locally strengthen the surface of the box body 110 . Wherein, the fixing part is installed on the reinforcing plate. Therefore, the connection strength between the shock absorbing bracket 120 and the box body 110 is higher.

Further, in this embodiment, the reinforcing plate is welded to the surface of the box body 110 , and the fixing part is screwed and fastened to the reinforcing plate.

Therefore, there is no need to perform operations such as punching holes and slotting on the surface of the box body 110 when installing the reinforcing plate, so that the integrity of the box body 110 will not be damaged, and the strength of the box body 110 will not be reduced. Apparently, the reinforcement board can also be fixed on the surface of the box body 110 by snapping, bonding and other means.

Specifically, screw holes may be provided on the surface of the reinforcing plate, and the reinforcing plate 140 of the fixing part is threaded and fastened by bolts. Among them, since the screw fastening method has the characteristics of convenient installation and simple tools required, it is convenient to refit the existing transformer without radiator 130 reinforcement.

For the transformer 100 reinforced by the above radiator, the shock absorbing bracket 120 includes a transverse support rod 121 , an oblique support rod 123 and a damper 125 , so the shock absorbing bracket 120 can produce slight deformation in a vibration environment. Under the action of an earthquake, the radiator 130 will vibrate within a certain range along with the shock-absorbing bracket 120 , so as to avoid falling off from the box body 110 due to the rupture of the rigid connection. Moreover, the box body 110, the radiator 130 and the shock absorber 120 can form a structure similar to a tuned mass damper, and the tuned mass damper can play the role of energy dissipation and shock absorption, thereby reducing the overall dynamic response. Further, the radiator 130 is in flexible communication with the receiving cavity, and has a degree of freedom. Therefore, during the vibration process, the radiator 130 will always be in communication with the receiving chamber, so as to avoid oil leakage and the like. Therefore, the seismic performance of the radiator-reinforced transformer 100 is effectively improved.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. a kind of transformer that radiator is reinforced, which is characterized in that including：

Babinet with host cavity；

Shock bracket, including：

Two transverse support bars are arranged in parallel and at interval, the both ends of the transverse support bar are respectively arranged with fixed part and installation Portion；

Two skewed horizontal load bars arranged in a crossed manner, described skewed horizontal load bar one end and the installation of one of them transverse support bar Portion connects, and the other end is connected with the fixed part of transverse support bar another described；

Damper is arranged on described two transverse support bars and described two skewed horizontal load bars, so that the transverse support bar And the skewed horizontal load bar is scalable along its length；And

Radiator is installed on the mounting portion；

Wherein, the fixed part is installed on the surface of the babinet, and the radiator is installed on the babinet, described to dissipate Hot device is connected with host cavity flexibility.

2. the transformer that radiator according to claim 1 is reinforced, which is characterized in that described two transverse support bars and institute It states and multiple dampers is both provided on two skewed horizontal load bars, and the multiple damper is serially connected.

3. the transformer that radiator according to claim 1 is reinforced, which is characterized in that the transverse support bar with it is described tiltedly It is rotatably coupled to supporting rod.

4. the transformer that radiator according to claim 3 is reinforced, which is characterized in that the transverse support bar with it is described tiltedly It is pivotally connected to supporting rod or hinged.

5. the transformer that radiator according to claim 1 is reinforced, which is characterized in that the shock bracket further includes vertically Supporting rod, the mounting portion of the both ends of the vertical supporting bar respectively with described two transverse support bars are fixedly connected.

6. the transformer that radiator according to claim 1 is reinforced, which is characterized in that the radiator is multiple and more A radiator being provided at circumferentially spaced around the babinet.

7. the transformer that radiator according to claim 6 is reinforced, which is characterized in that the quantity of the shock bracket and institute The quantity for stating radiator corresponds, and the multiple shock bracket being provided at circumferentially spaced around the babinet.

8. the transformer that radiator according to claim 1 is reinforced, which is characterized in that further include bellows, the heat dissipation Device is connected with the babinet by the bellows.

9. the transformer that radiator according to claim 1 is reinforced, which is characterized in that further include reinforcing plate, the reinforcement Plate is covered in the surface of the babinet, and the fixed part is installed in the reinforcing plate.

10. the transformer that radiator according to claim 9 is reinforced, which is characterized in that the reinforcing plate is welded in described The surface of babinet, the fixed part are connected with the reinforcing plate screw threads for fastening.