A transformer for electric power infrastructure

Abstract

The present application relates to the technical field of power infrastructure transformer, particularly relates to a transformer for power infrastructure, including outer cabinet group, first iron core frame, second iron core frame, underframe, adjusting frame, coil group and fixing frame, the lower side of coil group and the upper side of adjusting frame are provided with framework mechanism in the middle position, the inner side of framework mechanism is provided with auxiliary mechanism, framework mechanism includes mounting plate, the lower side of mounting plate is provided with support rod, the side of support rod is provided with linkage gear, the inside of mounting plate is provided with adjusting plate, through setting framework mechanism and auxiliary mechanism, the temperature cooling of transformer high pressure use can be satisfied under the premise of guaranteeing that transformer has no leakage pollution, auxiliary liquid cooling cooling is carried out through coolant, so that the transformer can work at stable temperature, guarantee work efficiency, in addition, the cooling liquid can be used for fire extinguishing operation when the transformer is on fire, further guarantee the safety of transformer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power infrastructure transformers, in particular to a transformer for power infrastructure. BACKGROUND

[0002] Intelligent large transformers are power equipment that combines advanced intelligent technology and play a key role in power infrastructure, which can transform voltage to meet the power supply of various places, including dry transformers and oil-immersed transformers;

[0003] The existing transformer also has the following disadvantages: the dry transformer is cooled by air cooling, which is difficult to stably cool the transformer under continuous high-efficiency operation; the oil-immersed transformer may leak and pollute the environment; in addition, the existing transformer uses a skeleton to support and fix the coil, and the existing skeleton is generally a fixed structure, which needs to be disassembled and replaced when different specifications of coils are needed, which is inconvenient to use and operate. Therefore, we propose a transformer for power infrastructure. SUMMARY

[0004] In order to overcome the technical problems existing in the prior art, the present application provides a transformer for power infrastructure.

[0005] To solve the above technical problems, the present application provides the following technical scheme: an outer cabinet group, a first iron core frame, a second iron core frame, a bottom frame, an adjusting frame, a coil group and a fixing frame are provided, a skeleton mechanism is arranged at the middle position of the lower side of the coil group and the upper side of the adjusting frame, and an auxiliary mechanism is arranged on the inner side of the skeleton mechanism;

[0006] The skeleton mechanism comprises a mounting plate, a support rod is arranged on the lower side of the mounting plate, a linkage gear is arranged on the side of the support rod, an adjusting plate is arranged in the mounting plate, a restraint rod is arranged on the side of the adjusting plate, and a sliding rod is arranged on the upper side of the restraint rod;

[0007] The auxiliary mechanism comprises an open cavity, a movable block and three groups of elastic plates are arranged in the open cavity, a flow guide groove is formed in the side of the movable block and penetrates through the movable block, the adjusting plate and the sliding rod, a pressure relief valve is arranged on the side of the movable block, and a first flow guide ring and a second flow guide ring are arranged on the inner side of the mounting plate.

[0008] Further, the inside of the outer cabinet group is provided with a transformer group, the transformer group comprises a first iron core frame arranged in the inside of the outer cabinet group, a second iron core frame clamped and arranged on the upper side of the first iron core frame, a bottom frame fixedly arranged on the lower side of the first iron core frame and fixedly arranged in the inside of the outer cabinet group, an adjusting frame arranged on the upper side of the bottom frame and arranged at the positions on both sides of the first iron core frame, a coil group movably sleeved on the side of the first iron core frame and arranged at the position on the upper side of the adjusting frame, and a fixing frame arranged on the upper side of the coil group and arranged at the positions on both sides of the second iron core frame.

[0009] Further, the mounting plate is arranged between the coil group and the adjusting frame, the support rods are arranged on the lower side of the mounting plate, the inner cavity is arranged on the upper position of the inner part of the mounting plate, the adjusting plate is movably arranged in the inner part of the inner cavity, the constraint slot is arranged on the side of the adjusting plate, and the constraint rod is movably arranged in the inner part of the constraint slot.

[0010] Further, the top wall of the inner cavity is provided with a sliding groove, the sliding rod is movably arranged in the inner part of the sliding groove, the side of the support rod is arranged in meshing with the linkage gear, and the linkage gear is rotatably arranged on the top wall position of the inner cavity.

[0011] Further, the mounting plate is movably sleeved on the side position of the first iron core frame, the support rod is fixedly arranged on the upper side position of the adjusting frame through bolts, and the sliding rod is fixedly arranged on the upper side position of the inner cavity.

[0012] Further, the opening cavity is arranged on the bottom wall of the inner cavity, the movable block is movably arranged in the inner part of the opening cavity, the movable block is attached to the wall surface position of the opening cavity on both sides, and the three groups of elastic plates are fixedly arranged between the side of the movable block and the wall surface of the opening cavity.

[0013] Further, the first flow guide ring and the second flow guide ring are fixedly connected to the inner part of the opening cavity through the circular pipes, the wall surface of the opening cavity is provided with an opening, and the pressure relief valve is arranged on the wall surface of the flow guide groove.

[0014] Further, the opening cavity corresponds to the sliding groove position, the movable block is fixedly arranged on the lower side position of the constraint rod, the elastic plates are attached to the wall surface position of the opening cavity on both sides, and the pressure relief valve is fixedly arranged on the side position of the movable block.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1、The framework mechanism and the auxiliary mechanism are arranged, so that the temperature of the transformer can be cooled when the transformer is used at high pressure without leakage pollution, the auxiliary liquid cooling is performed through the cooling liquid, the transformer can work at a stable temperature, the working efficiency is guaranteed, and in addition, the cooling liquid can be used for fire extinguishing operation when the transformer catches fire, and the safety of the transformer is further guaranteed.

[0017] 2、The framework mechanism is arranged, so that the sliding rod supporting the coil group can be adaptively adjusted and fixed, different specifications of the coil group supporting can be met, different specifications of the transformer can be changed without replacing the framework, and the sliding rod supporting can cooperate with the coil group to perform heat dissipation and cooling operation.

[0018] 3. By setting up an auxiliary mechanism, the present invention can cool the coil group by liquid cooling, ensuring the high efficiency of heat dissipation of the coil group. Moreover, by using coolant, it avoids the drawbacks of insulating oil leakage polluting the environment and excessive fire risk.

[0019] 4. This invention uses a support rod and a linkage gear. The support rod supports the mounting plate, allowing the mounting plate to support the coil assembly. The support rod is fixed to the side of the adjustment frame and can be driven by the linkage gear. The linkage gear can then rotate the adjustment plate, which in turn drives the slide rod to adjust its position. This makes adjusting the slide rod's position much simpler.

[0020] 5. By setting a first guide ring and a second guide ring, the present invention can centrally supply and return the coolant. In this way, the coolant is guided to the guide groove to drive the heat on the side of the slide bar. Since the first guide ring and the second guide ring are located inside the mounting plate, the coolant can be cooled by the fan of the external cabinet group, so that the fan can be used for multiple functions and reduce the equipment installation cost.

[0021] 6. By setting up a pressure relief valve and an opening, in the event of a fire, the pressure relief valve can be opened by increasing the water pressure, allowing the coolant to flow into the cavity and be discharged from the slide groove. The additional opening can also discharge coolant. The coolant can be used to spray water to extinguish the fire on the transformer, ensuring the safety of the transformer. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the transformer group portion of the present invention;

[0024] Figure 3 This is a schematic diagram of the peripheral partial structure of the first iron core frame of the present invention;

[0025] Figure 4 This is a partial structural schematic diagram of the present invention;

[0026] Figure 5 This is a schematic cross-sectional view of the internal cavity of the present invention;

[0027] Figure 6 For the present invention Figure 5 A magnified structural diagram at point A;

[0028] Figure 7 This is a partial structural schematic diagram of the adjusting plate of the present invention;

[0029] Figure 8 This is a partial structural diagram of the auxiliary mechanism of the present invention.

[0030] 1, outer cabinet group; 2, first iron core frame; 21, second iron core frame; 22, bottom frame; 23, adjusting frame; 24, coil group; 25, fixing frame; 3, framework mechanism; 31, mounting plate; 32, support rod; 33, inner cavity; 331, adjusting plate; 332, constraint groove; 333, constraint rod; 34, sliding groove; 341, sliding rod; 35, linkage gear; 4, auxiliary mechanism; 41, open cavity; 411, opening; 42, movable block; 43, flow guide groove; 431, pressure relief valve; 44, elastic plate; 45, first flow guide ring; 46, second flow guide ring. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the following specific embodiments are combined to further illustrate the present application. However, the following embodiments are only preferred embodiments of the present application, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods. Unless otherwise specified, the materials and reagents used in the following embodiments can be obtained from commercial channels.

[0032] Embodiment: As Figure 1 and Figure 2As shown, a transformer for power infrastructure includes an outer cabinet group 1, which is an integrated electric control cabinet with a controller and is internally provided with a cooling fan, a water pump, a liquid supply tank and the like, which can be used for subsequent multi-state cooling operation. A transformer group is arranged inside the outer cabinet group 1, which includes a first iron core frame 2 arranged inside the outer cabinet group 1. The first iron core frame 2 is an "E" shaped frame. A second iron core frame 21 is connected and installed on the upper side of the first iron core frame 2. The second iron core frame 21 is a rectangular frame. The first iron core frame 2 and the second iron core frame 21 are made of silicon steel sheets and are step-shaped to form a cylindrical cross section. A bottom frame 22 is symmetrically and fixedly installed on the lower side of the first iron core frame 2 and is fixedly installed on the inner bottom side of the outer cabinet group 1. The bottom frame 22 is a few-shaped frame. An adjusting frame 23 is mirror-imaged and arranged on the upper side of the bottom frame 22 and is arranged on both sides of the first iron core frame 2. The adjusting frame 23 is a "C" shaped frame. The adjusting frame 23 can be adjusted in position and locked on the side of the bottom frame 22 through bolts. A coil group 24 is movably sleeved on the side of the first iron core frame 2 and is arranged on the upper side of the adjusting frame 23. The adjusting frame 23 is the coil group 24 and is electrically connected through a conductive aluminum plate. A fixed frame 25 is arranged on the upper side of the coil group 24 and is arranged on both sides of the second iron core frame 21. The fixed frame 25 is fixed on the upper side of the coil group 24 through bolts. The fixed frame 25 is an "L" shaped frame. A skeleton mechanism 3 for supporting the coil group 24 is arranged at the intermediate position between the lower side of the coil group 24 and the upper side of the adjusting frame 23. An auxiliary mechanism 4 for assisting cooling is arranged on the inner side of the skeleton mechanism 3.

[0033] The skeleton mechanism 3 can be adapted to fix different specifications of the coil group 24, and the adjusting method is simple and convenient, without the need to disassemble multiple components to complete the adjustment.

[0034] As Figures 3 to 8As shown, the skeleton mechanism 3 comprises a mounting plate 31 arranged between the coil group 24 and the adjusting frame 23, and the mounting plate 31 is movably sleeved at the side of the first core frame 2, the mounting plate 31 is a circular plate with a rectangular groove on the lower side, a support rod 32 is arranged on the upper side of the adjusting frame 23 through the bolt fixing of the mounting plate 31, the support rod 32 is a rectangular rod with a tooth shape on the side, an inner cavity 33 is arranged on the upper inside of the mounting plate 31, the inner cavity 33 is a circular cavity, an adjusting plate 331 is movably arranged in the inner cavity 33, the adjusting plate 331 is a circular tooth plate, a constraint groove 332 is arranged on the side of the adjusting plate 331, the constraint groove 332 is an arc-shaped groove, a constraint rod 333 is movably arranged in the constraint groove 332, the constraint rod 333 is a cylindrical block, a sliding groove 34 is arranged on the top wall of the inner cavity 33 corresponding to the constraint groove 332, the sliding groove 34 is a rectangular groove, a sliding rod 341 is movably arranged in the sliding groove 34 and fixedly arranged on the upper side of the inner cavity 33, the sliding rod 341 is arranged on the inner side of the coil group 24, the sliding rod 341 is a convex-shaped rod made of easy-temperature-conducting material with an arc surface on one side, a linkage gear 35 is arranged on the side of the support rod 32 and penetrates the mounting plate 31 to the inner cavity 33 to engage with the adjusting plate 331, the linkage gear 35 is rotatably arranged on the top wall of the inner cavity 33 and can be rotationally driven by the adjusting plate 331 and the support rod 32; Specifically, the adjusting frame 23 is loosened by the bolt on the side, the adjusting frame 23 is pushed to slide on the side of the base frame 22, which drives the support rod 32 to engage with the linkage gear 35, the linkage gear 35 is driven to rotate by the engagement transmission, at this time, the constraint rod 333 is constrained in the constraint groove 332, and the sliding rod 341 is constrained to slide and adjust the position in the sliding groove 34, then the adjusting frame 23 is fixed on the side of the base frame 22 by tightening the bolt, and the position of the sliding rod 341 on the upper side of the mounting plate 31 can be adjusted to adapt to different specifications of the coil group 24;

[0035] The auxiliary mechanism 4 can assist in heat dissipation of the coil group 24, and can perform fire extinguishing operation in emergency, thereby ensuring the safety of the transformer operation;

[0036] As Figures 3 to 8As shown, the auxiliary mechanism 4 includes an open cavity 41 equidistantly opened in the bottom wall of the inner cavity 33 and corresponding to the position of the chute 34, the open cavity 41 is a convex-shaped cavity, a movable block 42 is movably installed inside the open cavity 41 and fixedly installed at the lower side of the constraint rod 333, the movable block 42 is attached to the wall surface of the open cavity 41 at both sides, the movable block 42 is a convex-shaped block made of wear-resistant rubber material, a flow guide groove 43 is formed in the side surface of the movable block 42 and penetrates through the movable block 42, the adjusting plate 331 and the slide rod 341, the flow guide groove 43 is a "U"-shaped path cylindrical groove, three groups of elastic plates 44 are equidistantly and fixedly installed between the side surface of the movable block 42 and the wall surface of the open cavity 41 and attached to the wall surface of the open cavity 41 at both sides, the elastic plates 44 are located corresponding to the water inlet and outlet of the flow guide groove 43 for isolation operation, the open cavity 41 is a rectangular plate made of wear-resistant rubber material with a continuous "W"-shaped cross section, a first flow guide ring 45 and a second flow guide ring 46 are respectively arranged at the water inlet and outlet of the flow guide groove 43 on the inner side of the mounting plate 31 and fixedly connected to the inner position of the open cavity 41 through a circular tube, the first flow guide ring 45 and the second flow guide ring 46 are hollow circular rings, the first flow guide ring 45 and the second flow guide ring 46 are respectively connected to the water outlet of the water pump inside the external cabinet group 1 and the water inlet of the liquid supply tank through pipelines, an opening hole 411 penetrating through the mounting plate 31 is equidistantly formed in the wall surface of the open cavity 41 away from the first iron core frame 2, the opening hole 411 is a circular hole, a pressure relief valve 431 is arranged on the wall surface of the flow guide groove 43 and penetrates and is fixed at the side surface of the movable block 42, the pressure relief valve 431 is a valve that can be communicated at a certain pressure value; Specifically, when the slide rod 341 is adjusted, the constraint rod 333 drives the movable block 42 to slide inside the open cavity 41, the movable block 42 pulls the elastic plate 44 to deform, the space inside the open cavity 41 is isolated by the movable block 42 and the elastic plate 44, the external water pump supplies water to the first flow guide ring 45 through the pipeline, then the water is transported to the inside of the open cavity 41 to the flow guide groove 43 through the first flow guide ring 45, the slide rod 341 is cooled through the flow guide groove 43, and the water is circulated inside the slide rod 341, the constraint rod 333 and the movable block 42, then discharged from the other end of the flow guide groove 43 to the inside of the second flow guide ring 46, and then flows back to the liquid supply tank through the pipeline, thereby assisting the slide rod 341 to perform heat dissipation operation on the inside of the coil group 24; In addition, when the water pressure of the water pump increases to a certain value, the pressure relief valve 431 is opened under pressure to fill the water inside the open cavity 41, and then discharged from the opening hole 411 and the chute 34 to perform fire extinguishing operation.

[0037] Working principle:

[0038] Normal use: The transformer group is placed in the inner position of the outer cabinet group 1, and works and dissipates heat through the inner fan of the outer cabinet group 1. The air flow blows downward from the bottom side of the bottom frame 22, is guided by the mounting plate 31, and is concentrated to the inner side of the coil group 24 for air cooling and heat dissipation. The remaining air flow passes from the outer side of the coil group 24. In this way, the heat dissipation operation for normal use can be met.

[0039] When the temperature is too high: At this time, the inner fan of the outer cabinet group 1 cannot meet the heat dissipation operation of the coil group 24. The water pump works to pump the cooling liquid in the liquid supply tank to the inner part of the first flow guide ring 45, and then to the inner part of each cavity 41. The cooling liquid flows through the inner part of the flow guide groove 43, the inner part of the sliding rod 341, the inner part of the constraint rod 333, and the inner part of the movable block 42, and finally collects in the inner part of the second flow guide ring 46 and is returned to the liquid supply tank. The sliding rod 341 absorbs heat in the inner part of the coil group 24, the cooling liquid carries away heat, further cools the coil group 24, and meets the normal use of the transformer.

[0040] In addition, the inner fan of the outer cabinet group 1 works at the same time, and the air flow passing through the inner side of the mounting plate 31 can also cool the first flow guide ring 45 and the second flow guide ring 46, complete the air cooling of the cooling liquid, and meet the use without subsequent addition of a cooling module, reducing the setting cost.

[0041] When replacing the electromagnetic coil: Open the outer movable door of the outer cabinet group 1, remove the fixed frame 25 with tools first, pull out the second iron core frame 21 to separate it from the first iron core frame 2, disassemble the external connecting wire of the coil group 24, and then directly pull out the coil group 24 to the side of the sliding rod 341. Then, loosen the bolts connecting the adjustment frame 23 and the bottom frame 22, pull the adjustment frame 23 to slide on the side of the bottom frame 22, and the adjustment frame 23 can drive the support rod 32 to move synchronously. The support rod 32 and the linkage gear 35 mesh to drive the adjustment plate 331 to rotate, which can constrain the sliding rod 341 to adjust the position, meet the inner side support and fixation operation of the coil group 24 of different specifications, and then tighten the bolts to fix the position of the sliding rod 341. In this way, the replacement and change operation of the transformer coil group 24 is convenient and easy to use.

[0042] When the fire occurs: When the fire occurs, the inner sensor of the outer cabinet group 1 detects it, the controller controls the water pump to supply water under high pressure, the water pressure becomes larger, the pressure relief valve 431 is relieved, the cooling liquid is discharged from the pressure relief valve 431 to the inner part of the cavity 41, and the cooling liquid is discharged from the opening 411 and the sliding groove 34. The water spray fire extinguishing operation on the side of the transformer is completed, and the safety of the transformer is ensured.

[0043] The embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the embodiments, and various changes can be made by those skilled in the art within the scope of knowledge acquired from the present disclosure, without departing from the spirit of the present application.

Claims

1. A transformer for power infrastructure, comprising an external cabinet assembly (1), a first core frame (2), a second core frame (21), a base frame (22), an adjustment frame (23), a coil assembly (24), and a fixing frame (25), wherein a frame mechanism (3) is provided at the middle position between the lower side of the coil assembly (24) and the upper side of the adjustment frame (23), and an auxiliary mechanism (4) is provided on the inner side of the frame mechanism (3); Its features are: The skeleton mechanism (3) includes a mounting plate (31), a support rod (32) is provided on the lower side of the mounting plate (31), a linkage gear (35) is provided on the side of the support rod (32), an adjustment plate (331) is provided inside the mounting plate (31), a constraint rod (333) is provided on the side of the adjustment plate (331), and a slide rod (341) is provided on the upper side of the constraint rod (333). The mounting plate (31) has an inner cavity (33) at the upper part of its interior. The top wall of the inner cavity (33) has a sliding groove (34). The sliding rod (341) is movably installed inside the sliding groove (34). The linkage gear (35) is meshed with the side of the support rod (32). The linkage gear (35) is rotatably installed on the top wall of the inner cavity (33). The mounting plate (31) is movably sleeved on the side of the first iron core frame (2), the support rod (32) is fixedly installed on the upper side of the adjusting frame (23) by bolts, the slide rod (341) is fixedly installed on the upper side of the inner cavity (33), and the linkage gear (35) passes through the mounting plate (31) to the inside of the inner cavity (33) and meshes with the adjusting plate (331); The auxiliary mechanism (4) includes an opening (41), inside which is a movable block (42) and three sets of elastic plates (44). A guide groove (43) is provided on the side of the movable block (42), and the guide groove (43) passes through the movable block (42), the adjusting plate (331) and the slide rod (341). A pressure relief valve (431) is provided on the side of the movable block (42), and a first guide ring (45) and a second guide ring (46) are respectively provided on the inner side of the mounting plate (31). The opening (41) is opened on the bottom wall of the inner cavity (33), the movable block (42) is movably installed inside the opening (41), the two sides of the movable block (42) are attached to the wall of the opening (41), and three sets of elastic plates (44) are fixedly installed between the side of the movable block (42) and the wall of the opening (41). The first guide ring (45) and the second guide ring (46) are respectively fixedly connected to the inside of the cavity (41) through a round tube. The wall of the cavity (41) is provided with an opening (411), and the pressure relief valve (431) is provided on the wall of the guide groove (43). The opening (41) corresponds to the position of the slide (34), the movable block (42) is fixedly installed on the lower side of the constraint rod (333), the elastic plate (44) is attached to the wall of the opening (41) on both sides, and the pressure relief valve (431) is fixed through the side of the movable block (42).

2. A transformer for power infrastructure according to claim 1, characterized in that: The external cabinet group (1) is equipped with a transformer group. The transformer group includes a first iron core frame (2) installed inside the external cabinet group (1), a second iron core frame (21) snapped onto the upper side of the first iron core frame (2), a base frame (22) fixedly installed on the lower side of the first iron core frame (2) and fixedly installed on the bottom side inside the external cabinet group (1), an adjustment frame (23) installed on the upper side of the base frame (22) and located on both sides of the first iron core frame (2), a coil group (24) movably sleeved on the side of the first iron core frame (2) and located on the upper side of the adjustment frame (23), and a fixing frame (25) installed on the upper side of the coil group (24) and located on both sides of the second iron core frame (21).

3. A transformer for power infrastructure according to claim 2, characterized in that: The mounting plate (31) is positioned between the coil group (24) and the adjusting frame (23). The support rods (32) are staggered on the lower side of the mounting plate (31). The adjusting plate (331) is movably installed inside the inner cavity (33). The side of the adjusting plate (331) is provided with a constraint groove (332), and the constraint rod (333) is movably installed inside the constraint groove (332).

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