KR100956088B1 - Transformer disassembling and transporting method, and core disassembling and transporting method - Google Patents

Abstract

An object of the present invention is to enable a simple transport and installation of a large weight and large capacity transformer.

A transformer including iron cores 2, 3, and 4 formed by laminating a plurality of metal plates, and a plurality of windings 1 recommended around the iron core is decomposed into a plurality of transport units and transported to an installation site. And a transformer disassembly and transportation method for assembling the transformer at this installation site. Windings 1 are recommended for the iron cores 2, 3, and 4, and the plurality of main iron cores 2 and the ends of the main iron cores 2 arranged in parallel with each other in the plane in which the metal plate extends. And yoke 3 in contact. This method divides each plinth iron core 2 and yokes 3 and 4, divides each plinth iron core 2 at least 2 in the dividing surface of the direction in which the plinth iron core 2 extends, and divides the plinth iron core (5) is packed separately, and the metal plate is transported to the installation site while keeping the metal plate substantially horizontal.

Description

TRANSFORMATION DISASSEMBLING AND TRANSPORTING METHOD, AND CORE DISASSEMBLING AND TRANSPORTING METHOD

The present invention relates to a method for disassembling and transporting large and heavy transformers, and particularly a method for disassembling and transporting iron cores used in transformers.

In recent years, as the demand for electric power increases, the power transmission system has also become high voltage, such as 500 kV power transmission, and the transformer used for power transmission has also increased in capacity and size. On the other hand, since substations in which transformers are installed are often constructed in mountainous lands with severe transport conditions, a significant reduction in the transport weight and transport dimensions of the transformer is required.

Conventionally, for a transformer installed in such a place, for example, in the case of a three-phase transformer, three single-phase transformers are configured and transported separately, and each single-phase transformer is connected and connected by a three-phase collective tank or a common duct in the field. There is a split transport transformer configured as a three-phase transformer by performing wiring.

However, when a 300 MVA class transformer is constructed by a decomposition transport transformer system, up to three divisions are common from local installation spaces and the economics of a transformer, and the limit of transport weight is also reduced to about 60 tons. Therefore, for local trailer transportation after railroad or ship transport, road reinforcement works including reinforcement of large-scale bridges are required, and huge transportation costs are required.

Therefore, when the transportation restrictions are particularly strict, a disassembly transport transformer that is dismantled and transported separately after disassembling a large-capacity three-phase transformer manufactured at the factory and already tested has been adopted. That is, after the test in the factory, the three-phase transformer is broken down into individual parts such as iron core legs, upper and lower yokes, windings, accessory parts connected to the windings, and split tanks, and these are stored in dedicated transport tanks and transported to the site. Reassembly at the installation site is carried out in a clean house.

In the case of this decomposition transport transformer, the weight component is an iron core, and in order to transport the decomposition transport transformer, it is necessary for the iron core transport method to enter the transport restriction of the transformer.

As a method of transporting the iron core of such a dissociation transport transformer, a scaffold scaffold that recommends winding of the core is separated from the center of the bridge to the left and right, and during transportation, the winding and the upper yoke are removed, and the transport tank is divided into U-shaped iron core units. It is known to store in a container and transport it (for example, refer patent document 1). In the case of a three-phase pentagonal iron core having a capacity of 300 MVA, for example, the total weight of the iron core, which is the weight constituent at the time of transportation, is 120 tonnes, but in this method, the core is decomposed and transported into the U-shaped iron core. Can be up to 25 tonnes and can be transported from the factory to a regular trailer without road reinforcement.

In addition, as a method for transporting iron cores of other disassembly and transport transformers, the core iron cores recommended for winding of the core cores are left, the upper and lower yokes of the iron cores are disassembled, and the core iron cores are bundled with transport brackets for each block, and each block is stored in a transportation tank. It is known to transport by (see Patent Document 2, for example). In this method, since it is disassembled and transported by the said core block iron core, the maximum weight of a daily transportation unit can be about 25 tons, and it can be transported from a factory to a general trailer without road reinforcement.

[Patent Document 1] Japanese Unexamined Patent Application Publication No. 4-186808

[Patent Document 2] Japanese Patent Application Laid-Open No. 2001-237121

By the way, in the iron core transportation of the above-mentioned disassembly and transport transformer, if the total capacity of the iron core is about 120 tons with a transformer capacity of about 300 MVA, the maximum unit at the time of iron core transportation can accommodate about 25 tons which can be transported by a general trailer. . However, with the recent increase in electric power demand, high voltages such as 500 kV transmissions of transmission systems have increased the capacity of transformers used for power transmission, and transformers with capacities exceeding 300 MVA are constructed in mountainous areas with severe transportation conditions. There are many cases. In recent years, it is required to install a transformer exceeding 1000 MVA in a narrow space such as an underground substation or an underground power plant in a mountainous region. In this case, the total weight of the iron core exceeds 200 tons, and the weight of the iron core in the conventional iron core decomposition unit exceeds 40 tons, and the road reinforcement work including the reinforcement of a large bridge is necessary for the trailer transportation. And a huge transportation cost.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and the transport structure is such that even the heavy-weight and high-capacity transformer can transport the iron core, which is the heaviest component, from the factory to the general trailer without reinforcing the road, thereby greatly reducing the transportation cost. It is an object of the present invention to provide a transformer transportation method and an iron core transportation method that become possible.

In order to achieve the above object, the transformer disassembly transportation method according to the present invention is installed by disassembling the transformer comprising a core and a plurality of windings recommended around the iron core, a plurality of transport units In the transformer disassembly and transportation method of transporting to and carrying out a transformer at this installation place, the iron core includes a plurality of core iron cores, each of which has windings and is arranged in parallel with each other in a plane in which the metal plate extends, and these core iron cores. And a yoke for contacting end portions of the splitter, wherein the disassembly and transportation method divides the respective core iron cores and the yoke, divides each core iron core in at least two divisions in a dividing plane in a direction in which the core iron core extends, and divides the divided core angles. Each iron core is packed separately, and the metal plate is transported to the installation site while maintaining the substantially horizontal state. The.

In addition, the iron core decomposition transporting method according to the present invention is made by stacking a plurality of metal plates, a plurality of core iron cores arranged in parallel to each other in the plane in which the metal plate extends, and the yoke for contacting the ends of these core iron cores In the iron core disassembly and transportation method of disassembling the iron core containing a plurality of transport units into a plurality of transport units and assembling at the installation site, the respective core angle iron core and yoke are divided, and the direction where the angle iron core extends. At least two divided plinth iron cores are divided at each divided surface, and the divided plinth iron cores are separately packed, and the metal plate is transported to the installation site while maintaining the substantially horizontal state.

According to the present invention, a large, heavy-weight transformer and iron core can be transported relatively easily.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the iron core transportation method of the decomposition transport transformer which concerns on this invention is described with reference to drawings. Here, the same code | symbol is attached | subjected to embodiment same or mutually mutually, and overlapping description is abbreviate | omitted.

[First Embodiment]

EMBODIMENT OF THE INVENTION The 1st Embodiment of the iron core transportation method of the decomposition transport transformer which concerns on this invention is described with reference to FIGS. 1 is an explanatory view showing a first embodiment of a transformer core transfer method, in which FIG. 1 (a) is a front view at the time of assembling the iron core, and FIG. It is a development front view. FIG. 2: is a figure which shows the semi-circle spigot iron core conveyance state in 1st Embodiment of a transformer iron core conveyance method, FIG.2 (a) is a top sectional view and FIG.2 (b) is a sectional view. FIG. 3 is a cross sectional plan view illustrating the semicircular plinth iron core transport state in the first embodiment in an enlarged manner in more detail than in FIG. 2. FIG. 4 is a cross-sectional view taken from the arrow direction IV-IV line in FIG.

In the state in which the transformer iron core in this embodiment is assembled, as shown in FIG. 1 (a), a plurality of plinth iron cores 2 are placed upright in parallel with each other, and the upper ends of the plinth iron cores 2 are It is connected to the upper yoke 3, and the lower ends of the shell iron core 2 are connected to the lower yoke 4. Each core iron core 2 is divided into two in the left-right direction (the direction in which the core iron cores 2 are arranged). The core iron core 2, the upper yoke 3, and the lower yoke 4 are formed by stacking metal plates (punching plates) such as silicon steel sheets each extending in the horizontal direction (the direction in which the core iron cores 2 are arranged). have. The winding 1 is wound around each core iron core 2. Each core iron core 2 has a substantially circular horizontal cross section so that the winding 1 is wound in a substantially circular shape. The iron core and the winding 1 as a whole are housed in a transformer tank (not shown).

In transporting a transformer, it disassembles and packs so that the weight of the thing carried to an individual may not become too big. That is, the iron core, the winding 1 and the transformer tank are separately packed and transported. In addition, as shown in FIG. 1B, the iron core 2 is decomposed into the core iron core 2, the upper yoke 3, and the lower yoke 4. Further, each plinth iron core 2 is decomposed into two semicircular plinth iron cores 5 at right and left.

In transporting each semi-circular shell core 5, it is put in the separate transport tank 6, and is transported separately. At the time of transport, each semi-circle core iron core 5 is in the state which lays down, and is arrange | positioned so that each metal plate, such as a silicon steel plate laminated | stacked, may be substantially horizontal.

As shown in FIGS. 3 and 4, the fastening brackets 7 are jointly attached to and attached to the upper and lower half-circle iron cores 5, and the iron core fastening filler 8 between the upper and lower fastening brackets 7 and the half-circle iron cores 5. ) Is fitted, and the fastening brackets 7 above and below are fastened to each other by the fastening rod 9. Here, the male screw is cut | disconnected at both ends of the fastening rod 9, for example, and the nut 30 can be screwed together and fastened.

Thereafter, the fastened semicircular core iron core 5 is put in the dedicated transport tank 6 and fixed to the bottom of the transport tank 6 with the fixing bolt 10. In addition, the plurality of iron core supports 11 are arranged between the transport tank 6 and the semi-circular shell core 5 to suppress the movement of the semi-circle shell core 5 in the transport tank 6. In this state, it transports for every transport tank 6.

In the present embodiment, the iron core, which is the largest transport unit at the time of transporting the transformer, can be transported to the semicircular plinth iron core 5, which is half of the plinth iron core, and a supercapacity transformer of about 1000 MVA in which the total weight of the iron core exceeds 200 tons. In this case, the transport weight of the iron core, which is the largest transport unit for transporting the transformer, can be accommodated as 25 tons to be transported by a general trailer. Therefore, even in the case of transporting a super capacity transformer in a mountainous region where transportation conditions are severe, it is possible to transport from a factory to a general trailer. In addition, road reinforcement work including the use of a vehicle special for transportation or the reinforcement of a large bridge in the transportation route becomes unnecessary, so that a significant reduction in transportation costs can be achieved.

In addition, since the semicircular core iron 5 is sandwiched by the iron core fastening filler 8 between the fastening bracket 7 and the semicircular core iron 5 and fastened by the fastening rod 9, the shaking generated during transportation In addition, the friction force which does not shift mutually a punching plate by an impact can be produced between punching plates. In addition, the semicircular plinth iron core 5 which is fastened and fixed is fixed to the transport tank 6 with a fixing bolt 10, and a plurality of iron core supports 11 between the transport tank 6 and the semicircular plinth iron core 5. ), The semicircular core iron core 5 can be fixed so as not to move in the transport tank due to shaking or impact generated during transportation. As a result, damage caused by shaking and impact during transportation can be suppressed, and the iron core can be transported while maintaining high quality. In addition, since the core can be assembled and stood up without re-lapping the iron core at the time of on-site assembly, local work can be saved.

Second Embodiment

A second embodiment of a method for transporting iron cores of a decomposition transport transformer according to the present invention will be described with reference to FIGS. 5 to 8. 5 is explanatory drawing which shows 2nd Embodiment of the transformer core transportation method, FIG. 5 (a) is a front view at the time of iron core assembly, and FIG. 5 (b) is a figure which shows the form of iron core decomposition typically. FIG. 5: (c) is an expanded plan sectional view seen from the CC line arrow direction of FIG. 5 (b). FIG. 6: is a figure which shows the semi-circle spigot iron core conveyance state in 2nd Embodiment of a transformer iron core conveyance method, FIG. 6 (a) is a top sectional view and FIG. 6 (b) is a sectional view. FIG. 7 is a planar cross-sectional view showing the semicircular plinth iron core transport state in a second embodiment in more detail than in FIG. 6. FIG. 8 is a cross-sectional view taken from the arrow direction of line VIII-VIII in FIG. 7.

In the state in which the transformer iron core in this 2nd Embodiment was assembled, it is the same as that of 1st Embodiment (FIG. 1 (a)), as shown to FIG. In this 2nd Embodiment, it differs from 1st Embodiment that the each core iron core 2 is divided into 2 in the front-back direction (along one of the laminated surfaces of metal plates, such as a silicon steel plate).

In transporting the transformer, as shown in FIG. 5B, the core iron core 2, the upper yoke 3, and the lower yoke 4 are disassembled. Moreover, each core iron core 2 is decomposed | disassembled back and forth by two semi-circular core iron cores 5a as shown to Fig.5 (c).

In the transportation of each semicircular square iron core 5a in this embodiment, it is put in a separate transport tank 6 and is transported separately similarly to the first embodiment. At the time of transportation, each semi-circular core iron core 5a is laid down, and is arrange | positioned so that each metal plate, such as a silicon steel plate laminated | stacked, may be substantially horizontal. The state at this time is wider in the horizontal direction and lower in height than in the first embodiment.

Also in this embodiment, like the first embodiment, the iron core, which is the largest transport unit at the time of transporting the transformer, can be transported to the semicircular plinth iron core 5a, which is half of the plinth iron core. In addition, damage caused by shaking and impact during transportation can be suppressed, and the iron core can be transported while maintaining high quality.

[Third Embodiment]

A third embodiment of a method for transporting iron cores of a decomposition transport transformer according to the present invention will be described with reference to FIGS. 9 and 10. Here, FIG. 9 is a cross sectional view showing a semicircular plinth iron core transport state in a third embodiment of a transformer iron core transport method. FIG. 10 is a sectional view taken from the direction of arrow X-X in FIG. 9; FIG.

This embodiment is a modification of the first embodiment, and FIGS. 1 and 2 and the related descriptions are common to this embodiment.

In this embodiment, the through hole which penetrates the laminated boards of the semicircle core iron core 5 in the lamination direction is formed, and the through rod 13 passes through this through hole. The backing plate 12 is arrange | positioned at the both ends of the semicircle round iron core 5 in the lamination direction. A through hole is also formed in this mounting plate 12, and a through rod 13 passes through the through hole. Here, the male screw is cut | disconnected at both ends of the through rod 13, for example, and the nut 30 can be screwed together and fastened. Thereby, the laminated board is integrated in the state in which the backing plate 12 was attached to the upper and lower sides of the semicircle plinth iron core 5 isolate | separated from the center of the plinth width | variety which is an iron core transport unit. In this state, the semicircular plinth iron core 5 is put in the dedicated transport tank 6, and fixed with the fixing bolt 10, and a plurality of iron core supports between the transport tank 6 and the semicircle plinth iron core 5 It is transported in the state 11 was arrange | positioned.

The number of through rods 13 is two, for example, as shown in the figure, but may be any other number.

According to this embodiment, the through rod 13 itself acts as a stopper, and the punching plates do not shift from each other due to shaking and impact generated during transportation. In addition, since the plurality of iron core support members 11 are disposed between the transport tank 6 and the semicircular shell iron core 5, the transport tank 6 is caused by the shaking or impact generated during the transport of the semicircle shell iron core 5 during transportation. It is fixed not to move inside.

According to this embodiment, it is possible to realize the fastening structure of the iron core punching plate due to the shaking and the impact during transportation with a fastening structure having a small number of parts more easily. This facilitates the fastening work of the semi-circular iron core 5 at the time of factory shipment and the disassembly of the fastener at the time of assembling and standing the iron core in the field, and the factory shipping work while maintaining the iron core with high quality. It can improve local assembly work and shorten the process.

Fourth Embodiment

A fourth embodiment of a method for transporting iron cores of a decomposition transport transformer according to the present invention will be described with reference to FIGS. 11 and 12. Here, FIG. 11 is a plan sectional view which shows the semicircle plinth iron core conveyance state in 4th Embodiment of a transformer iron core conveyance method. 12 is a sectional view taken from the arrow direction along the line XII-XII in FIG.

This embodiment is a modification of the second embodiment, and Figs. 5 and 6 and the related descriptions are common to this embodiment. In this embodiment, in conveying the semi-circle shell iron core 5a of 2nd Embodiment, like the 3rd embodiment (FIG. 9, FIG. 10), each laminated plate of the semi-circle shell iron core 5a penetrates in a lamination direction. A through hole is formed, and the through rod 13 passes through this through hole. The backing plate 12 is arrange | positioned at the both ends of the lamination direction of the semi-circular core iron core 5a.

Thereby, the laminated board is integrated in the state in which the backing plate 12 was attached to the upper and lower sides of the semicircle core iron core 5a similarly to 3rd Embodiment. In this state, the semicircular plinth iron core 5a is put in the dedicated transport tank 6, and is fixed with the fixing bolt 10, and also the plurality of iron core supports between the transport tank 6 and the semicircle plinth iron core 5a. It is transported in the state 11 was arrange | positioned. Approximately the same effects as in the third embodiment can be obtained.

[Fifth Embodiment]

A fifth embodiment of a method for transporting iron cores of a decomposition transport transformer according to the present invention will be described with reference to FIGS. 13 and 14. Here, FIG. 13 is a cross-sectional plan view showing a semicircular plinth iron core transport state in the fifth embodiment of the transformer iron core transport method. FIG. 14 is an incidence diagram seen in the direction of arrow XIV-XIV in FIG. 13; FIG.

This embodiment is a modification of the first embodiment, and FIGS. 1 and 2 and the related descriptions are common to this embodiment.

In this embodiment, in conveying an iron core, like the 1st Embodiment, it isolate | separates in the center of the iron core plinth width, and sets it as the semicircle plinth iron core 5. In conveying this semicircle shell core 5, the joint support body 14 of the semicircle plate shape of the shape substantially the same as the semicircle cross section of the semicircle shell core 5 is joined to the side surface, and with it the substantially circular arc shape The arc portion is fastened with a bind tape 15. In this state, the semicircular core iron core 5 fastened to the bottom plate of the transport tank 6 by a bind tape 15 is fixed with a lashing wire 16, and this is transported to the transport tank 6. Transport every time.

In this embodiment, since the semicircle core iron core 5 is attached by attaching the semicircular joint support body 14 of the same shape as the semicircle core iron core, and becomes circular arc shape, the fastening by the bind tape 15 is sufficient. It can also be facilitated. A frictional force in which the punching plates do not shift from each other due to shaking or impact generated during transportation by the fastening force by the bind tape 15 can be generated between the punching plates. In addition, since the semicircular plinth iron core 5 fastened to the bottom plate of the transport tank 6 by the bind tape 15 is fixed by the lashing wire 16, the semicircular plinth iron core 5 is shaken during transportation. It does not move in the transportation tank 6 by an impact.

According to this embodiment, even when iron cores are transported from the factory to mountainous areas with strict transport conditions, it is possible to realize a simpler structure with fewer parts and a fastening structure with fewer parts due to shaking or impact during transportation. Fastening of semicircular iron cores (5) at the time of shipment and disassembly of the fasteners at the time of assembling and erecting iron cores in the field are facilitated, and factory shipment and local assembly work are made with high quality iron cores. And the process can be shortened.

[Sixth Embodiment]

A sixth embodiment of an iron core transportation method of a decomposition transport transformer according to the present invention will be described with reference to FIGS. 15 and 16. Here, FIG. 15 is a cross-sectional plan view showing a semicircular plinth iron core transport state in a sixth embodiment of a transformer iron core transport method. FIG. 16 is a cross-sectional view taken from the arrow direction of XVI-XVI line in FIG. 15.

This embodiment is a modification of the second embodiment, and Figs. 5 and 6 and the related descriptions are common to this embodiment. In this embodiment, in conveying the semicircle shell iron core 5a of 2nd Embodiment, it is substantially the same shape as the semicircle cross section of the semicircle shell iron core 5a similarly to 5th Embodiment (FIG. 13, FIG. 14). A semicircular plate-shaped joint support 14 is jointed to form an approximately circular arc shape with it, and the circular arc portion is fastened with a bind tape 15. In this state, the semicircular core iron core 5a fastened to the bottom plate of the transport tank 6 and fastened to the bottom plate of the transport tank 6 by the bind tape 15 is fixed with a lashing wire 16, and this is transported to the transport tank 6. Transport every time.

Thereby, similarly to 5th Embodiment, the semi-circle shell iron core 5a and the joint support body 14 are jointed and fastened with the bind tape 15, and are fixed to the transport tank 6 with the lashing wire 16. FIG. do. It transports for every transport tank 6 in this state. Thereby, substantially the same effects as in the fifth embodiment can be obtained.

In addition, in the example shown in FIG. 16, although the semi-circle shell iron core 5a is arrange | positioned so that the joint support body 14 may be lower side, these up-down relationships may be reversed.

[Seventh Embodiment]

A seventh embodiment of a method for transporting iron cores of a decomposition transport transformer according to the present invention will be described with reference to FIGS. 17 and 18. Here, FIG. 17 is a plan sectional view showing a semicircle spigot iron core transport state in a seventh embodiment of a transformer iron core transport method. FIG. 18 is a sectional view taken from the arrow direction along the line XVIII-XVIII in FIG. 7; FIG.

This embodiment is a modification of the first embodiment, and FIGS. 1 and 2 and the related descriptions are common to this embodiment.

In this embodiment, in conveying an iron core, it isolate | separates in the center of iron core plinth width similarly to 1st embodiment, and sets it as the semicircle plinth iron core 5.

The dedicated transport tank 6 can accommodate the semicircular plinth iron core 5 and has an opening 18 in the ceiling plate part 31 at the upper portion thereof. A lower protection plate 171 is disposed at the bottom in the dedicated transport tank 6 to protect the iron core, and a semicircular plinth iron core 5 is disposed on the lower protection plate 171, and the upper protection plate 172 thereon. ). Thereafter, the fastening jack 19 is inserted into the transport tank 6 through the opening 18 and placed on the upper protection plate 172, and the fastening book 19 is provided between the ceiling plate portion 31 and the upper protection plate 172. The semicircular plinth core 5 is tightened in the lamination direction by elongating. In this state, it is transported for every transport tank 6.

Although the number of the fastening jacks 19 is five in the example shown in FIG. 17, any number may be sufficient.

According to this embodiment, the fastening jack 19 can easily fasten the semicircle square iron core 5 with a big force. This fastening force can generate a frictional force between the punching plates so that the mutual punching plates are not shifted by the shaking or impact generated during transportation. Further, friction between the transport tank 6 and the semi-circular corrugated iron core 5 at the same time as the semi-circular corrugated iron core 5 does not move in the transport tank due to the shaking or impact generated during transport. It can be generated between the semicircular iron cores 5.

As a result, even when the iron cores are transported from the factory to the mountainous areas where the transportation conditions are severe, the shifting of the iron core punching plate due to the shaking or the impact during the transportation can be realized without using the fasteners. (5) The fastening work and the disassembly of the fasteners at the time of assembling and erecting iron cores in the field can be facilitated, and the factory shipment and local assembly work can be made shorter and the process can be shortened while maintaining the iron cores in high quality. Can be.

In addition, although the fastening jack 19 was arrange | positioned at the upper part of the semicircle round iron core 5 in the said description, the same effect | action and effect can also be implement | achieved even if it is arrange | positioned under the half circle round iron core 5.

[Eighth Embodiment]

A fourth embodiment of a method for transporting iron cores of a decomposition transport transformer according to the present invention will be described with reference to FIGS. 19 and 20. Here, FIG. 19 is a cross sectional view showing a semicircular plinth iron core transport state in an eighth embodiment of a transformer iron core transport method. 20 is a sectional view taken along the line XX-XX in FIG. 19;

This embodiment is a modification of the second embodiment, and Figs. 5 and 6 and the related descriptions are common to this embodiment. In this embodiment, in conveying the semi-circle shell iron core 5a of 2nd Embodiment, it protects an iron core in the bottom part in the exclusive transport tank 6 substantially similarly to 7th Embodiment (FIG. 17, FIG. 18). The lower protective plate 171 is disposed, the semicircular plinth iron core 5a is disposed on the lower protective plate 171, and the upper protective plate 172 is disposed thereon. Thereafter, the fastening jack 19 is inserted into the transport tank 6 through the opening 18 to be disposed on the upper protection plate 172, and the fastening jack 19 between the upper plate portion 31 and the upper protection plate 172. The semicircular core iron core 5a is fastened in the lamination direction by elongating. In this state, it is transported for every transport tank 6.

In the seventh embodiment, the semicircular corrugated iron core 5 has a substantially symmetrical shape in the vertical direction, and the lower protective plate 171 and the upper protective plate 172 have substantially the same shape. In this eighth embodiment, the semicircular corrugated iron core 5a It is preferable to make the wide side downward and to arrange the narrow side upward, and in that case, the lower protective plate 171 will become larger than the upper protective plate 172.

According to this eighth embodiment, as in the seventh embodiment, the fastening jack 19 can easily fasten the semicircular square iron core 5 with a large force, and the substantially same effect can be obtained.

[Ninth Embodiment]

A ninth embodiment of a method for transporting iron cores of a decomposition transport transformer according to the present invention will be described with reference to FIGS. 21 and 22. Here, FIG. 21 is a cross sectional view showing a semicircular plinth iron core transport state in a ninth embodiment of a transformer iron core transport method. FIG. 22 is a sectional view seen from the arrow direction XXII-XXII in FIG. 21;

This embodiment is a modification of the first embodiment, and FIGS. 1 and 2 and the related descriptions are common to the present embodiment.

In this embodiment, in conveying an iron core, like the 1st Embodiment, it isolate | separates in the center of iron core plinth width, and sets it as the semicircle plinth iron core 5. The semi-circular plinth core 5 is placed in a dedicated transport tank 6, and the iron core support filling material which comes into close contact with the semi-circular plinth iron core 5 without a gap between the semicircle plinth iron core 5 and the transport tank 6 on the side surface thereof. (20) is put, and the iron core supporting filler 20 slightly thicker than the gap with the transport tank 6 is put on the upper surface of the semicircular shell core 5, and the transport cover 61 of the transport tank is attached. As a result, the iron core supporting filler 20 placed on the upper surface of the semicircular plinth iron core 5 presses the semicircular plinth iron core 5 firmly so that the semicircle plinth iron core 5 is engaged. In this state, it is transported for every transport tank 6.

According to this embodiment, by inserting the iron core support packing 20 which closely adheres to the semicircle shell iron core 5 without a clearance in the clearance gap with the transport tank 6, the peripheral side surface of the semicircle shell iron core 5 generate | occur | produces during transport. It prevents the half-circle iron core 5 from moving in the transport tank by shaking or impact. In addition, the semicircular plinth core 5 is attached to the upper surface of the semicircular plinth core 5 by attaching the iron core supporting filler 20 slightly thicker than the gap with the transport tank 6 to attach the transport cover 61 of the transport tank 6. The iron core supporting filler 20 placed on the upper surface of the can be firmly press the semi-circular plinth iron core 5 to fasten the semi-circular plinth iron core 5 with great force. This fastening force can generate a frictional force between the punching plates so that the mutual punching plates are not shifted by the shaking or impact generated during transportation.

According to this embodiment, even when the iron cores are transported from the factory to mountainous areas with strict transport conditions, the shifting of the iron core punching plates due to the shaking and the impact during the transportation can be realized without using fasteners. It facilitates the semi-circle casting of iron cores and the disassembly of fasteners when assembling and erecting iron cores in the field, and to shorten the process of factory shipment and local assembly and shorten the process while maintaining the iron cores in high quality. can do.

[Tenth Embodiment]

A tenth embodiment of a method for transporting iron cores of a decomposition transport transformer according to the present invention will be described with reference to FIGS. 23 and 24. Here, FIG. 23 is a cross-sectional plan view which shows the semi-circle plinth iron core conveyance state in 10th Embodiment of a transformer iron core conveyance method. 24 is a cross-sectional view taken along the line XXIV-XXIV in FIG. 23.

This embodiment is a modification of the second embodiment, and Figs. 5 and 6 and the related descriptions are common to this embodiment. In this embodiment, in conveying the semicircle shell iron core 5a of 2nd Embodiment, the semicircle shell iron core 5a is conveyed to the dedicated transport tank 6 substantially similarly to 9th Embodiment (FIG. 21, FIG. 22). In the gap with the transport tank 6 on the side of the semicircular plinth iron core 5a, and put the iron core supporting filler 20 which is in close contact with the semicircular plinth iron core 5a without a gap, and transports on the upper surface of the semicircle plinth iron core 5 The iron core support filling material 20 slightly thicker than the gap with the tank 6 is put in and the transport cover 61 of the transport tank is attached. As a result, the iron core supporting filler 20 placed on the upper surface of the semicircular plinth iron core 5a is pressed against the semicircular plinth iron core 5a so as to be in a state where the semicircle plinth iron core 5a is fastened. In this state, it is transported for every transport tank 6.

According to this tenth embodiment, as in the ninth embodiment, it is possible to prevent the semicircular columnar iron core 5a from moving in the transportation tank due to the shaking and the impact generated during the transportation. In addition, the iron core supporting filler 20 placed on the upper surface of the semicircular plinth iron core 5a can press the semicircle plinth iron core 5a firmly to easily fasten the semicircle plinth iron core 5a with a large force. This fastening force can generate a frictional force between the punching plates so that the mutual punching plates are not shifted by the shaking or impact generated during transportation.

[Eleventh Embodiment]

An eleventh embodiment of an iron core transportation method of a decomposition transport transformer according to the present invention will be described with reference to FIGS. 25 and 26. Here, FIG. 25 is a cross-sectional plan view which shows the semi-circle plinth iron core conveyance state in 11th Embodiment of the transformer iron core conveyance method. Fig. 26 is a sectional view seen from the arrow direction XXVI-XXVI in Fig. 25;

This embodiment is a modification of the first embodiment, and FIGS. 1 and 2 and the related descriptions are common to this embodiment.

In this embodiment, in conveying an iron core, like the 1st Embodiment, it isolate | separates in the center of iron core plinth width, and sets it as the semicircle plinth iron core 5. In this embodiment, the adhesive agent 21 is apply | coated to the punching plate laminated end surface of the semi-circle shell iron core 5, the laminated punching boards are adhere | attached, and the semi-circle shell iron core 5 is integrated. The adhesive 21 is oil and heat resistant, and preferably does not generate harmful substances during operation of the transformer. The semicircle plinth iron core 5 in this state is put in the dedicated transport tank 6, and the several iron core support 11 is arrange | positioned and fixed between the transport tank 6 and the semicircle plinth iron core 5, and is transported in this state. Each tank 6 is transported.

According to this embodiment, since punching boards adhere | attach, the mutual punching boards can be prevented from shifting | deviating by the shake and the impact which generate | occur | produce during transport, without fastening the semi-circular shell core 5. As a result, even when the iron core is transported from the factory to mountainous areas with severe transportation conditions, it is possible to realize the prevention of misalignment of the iron core punching plate by the shaking or the impact during the transportation without using the fastener, so that the semicircular plinth at the time of factory shipment The fastening work of iron core (5) and the disassembly of fasteners at the time of planting and erecting iron cores in the field are facilitated. can do.

[Twelfth Embodiment]

A twelfth embodiment of the iron core transport method of the decomposition transport transformer according to the present invention will be described with reference to FIGS. 27 and 28. Here, FIG. 27 is a cross-sectional plan view showing a semicircular plinth iron core transport state in a twelfth embodiment of the transformer iron core transport method. FIG. 28 is a sectional view seen from the arrow direction XXVIII-XXVIII in FIG. 27;

This embodiment is a modification of the second embodiment, and Figs. 5 and 6 and the related descriptions are common to this embodiment. In this embodiment, in conveying the semi-circle shell iron core 5a of 2nd embodiment, it is about the same as 11th embodiment (FIG. 23, FIG. 24), The adhesive agent (for 21) is applied, the laminated punching plates are adhered to each other, and the semicircular square iron core 5a is integrated. The semicircle plinth iron core 5a of this state is put in the dedicated transport tank 6, and the several iron core support 11 is arrange | positioned and fixed between the transport tank 6 and the semicircle plinth iron core 5a, and is transported in this state. Each tank 6 is transported.

According to this embodiment, the punching plates are bonded to each other in substantially the same manner as in the eleventh embodiment, so that the punching plates can be prevented from shifting each other due to shaking or impact generated during transportation without fastening the semicircular square iron cores 5a. have.

[Other Embodiments]

Each embodiment described above is merely an example, and the present invention is not limited thereto. Moreover, the characteristic of each embodiment can also be combined in various ways. For example, application of the adhesive agent 21 in 11th or 12th embodiment may be performed in another embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows 1st Embodiment of the transformer core transport method which concerns on this invention, FIG. 1 (a) is a front view at the time of iron core assembly, and FIG. A front view of the development shown by the enemy.

Fig. 2 is a diagram showing a transport state of the semicircular plinth iron core in the first embodiment of the transformer iron core transport method according to the present invention, in which Fig. 2 (a) is a plan sectional view and Fig. 2 (b) is a sectional view. .

Fig. 3 is a plan sectional view showing, in greater detail than in Fig. 2, the transport state of the semicircular plinth iron core in the first embodiment of the transformer iron core transport method according to the present invention.

Fig. 4 is a sectional view seen from the arrow direction IV-IV in Fig. 3;

FIG. 5 is an explanatory view showing a second embodiment of a transformer core transport method according to the present invention, FIG. 5A is a front view at the time of assembling the iron core, and FIG. Fig. 5C is a display development cross-sectional view seen from the direction of the arrow CC in Fig. 5B.

Fig. 6 is a diagram showing the transport state of the semicircular plinth iron core in the second embodiment of the transformer iron core transporting method according to the present invention, in which Fig. 6 (a) is a plan sectional view and Fig. 6 (b) is a sectional view. .

FIG. 7 is an enlarged cross sectional view showing a transport state of a semicircular plinth iron core in a second embodiment of a transformer iron core transport method according to the present invention in greater detail than FIG. 6; FIG.

FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. 7; FIG.

Fig. 9 is a plan sectional view showing a transport state of a semicircular plinth iron core in a third embodiment of a transformer iron core transport method according to the present invention.

FIG. 10 is a sectional view taken from the direction of arrow X-X in FIG. 9; FIG.

Fig. 11 is a plan sectional view showing a transport state of a semicircular plinth iron core in a fourth embodiment of a transformer iron core transport method according to the present invention.

Fig. 12 is a sectional view seen from the direction of arrow XII-XII in Fig. 11;

Fig. 13 is a plan sectional view showing a transport state of a semicircular plinth iron core in a fifth embodiment of a transformer iron core transport method according to the present invention.

Fig. 14 is a sectional view seen from the arrow direction XIV-XIV in Fig. 13;

Fig. 15 is a cross sectional view showing a transport state of a semicircular plinth iron core in a sixth embodiment of a transformer iron core transport method according to the present invention.

Fig. 16 is a sectional view seen from the arrow direction XVI-XVI in Fig. 15;

Fig. 17 is a sectional plan view showing a transport state of a semicircular plinth iron core in a seventh embodiment of a transformer iron core transport method according to the present invention.

FIG. 18 is a sectional view seen from the arrow direction XVIII-XVIII in FIG. 17; FIG.

Fig. 19 is a sectional plan view showing a transport state of a semicircular plinth iron core in an eighth embodiment of a transformer iron core transport method according to the present invention.

20 is a sectional view seen from the direction of arrow XX-XX in FIG. 19;

Fig. 21 is a plan sectional view showing a transport state of a semicircular plinth iron core in a ninth embodiment of a transformer iron core transport method according to the present invention.

Fig. 22 is a sectional view seen from the arrow direction XXII-XXII in Fig. 21;

Fig. 23 is a plan sectional view showing a transport state of a semicircular plinth iron core in a tenth embodiment of a transformer iron core transport method according to the present invention.

Fig. 24 is a sectional view seen from the arrow direction XXIV-XXIV in Fig. 23;

Fig. 25 is a plan sectional view showing a transport state of a semicircular plinth iron core in an eleventh embodiment of a transformer iron core transport method according to the present invention.

Fig. 26 is a sectional view seen from the arrow direction XXVI-XXVI in Fig. 25;

Fig. 27 is a sectional plan view showing a transport state of a semicircular plinth iron core in a twelfth embodiment of a transformer iron core transport method according to the present invention.

Fig. 28 is a sectional view seen from the direction of arrow XXVIII-XXVIII in Fig. 27;

<Explanation of symbols for the main parts of the drawings>

1: winding

2: iron core

3: upper yoke

4: lower yoke

5a: semicircle plinth iron core

6: transport tank

7: fastener

8: iron core fastener filling

9: fastening rod

10: fixing bolt

11: iron core support

12: adding plate

13: through rod

14 joint support

15: bind tape

16: lashing wire

18: opening

19: fastening jack

20: iron core support filling

21: adhesive

30: nut

31: ceiling part

61: cover

171: lower protection plate

172: upper protective plate

Claims (14)

A transformer comprising an iron core formed by laminating a plurality of metal plates and a plurality of windings recommended around the iron core is disassembled into a plurality of transport units and transported to an installation site, where the assembly of the transformer is performed at this installation site. In the transformer decomposition transport method to be performed, The iron core includes a plurality of plinth iron cores arranged in parallel with each other in a plane in which a winding is recommended, and the metal plate extends, and a yoke for contacting end portions of these plinth iron cores, The decomposition transport method, Dividing each of the core iron cores and the yoke, and dividing each of the core iron cores by at least two in a dividing surface in a direction in which the core iron core extends, Packing the divided plinth iron cores separately and transporting them to the installation site while keeping the metal plate horizontal. Transformer disassembly transport method characterized in that. The transformer disassembly and transportation method according to claim 1, wherein the dividing surface of each core iron core is a surface perpendicular to the direction in which the metal plate extends. The transformer disassembly and transportation method according to claim 1, wherein the dividing surface of each core iron core is a laminated surface of the metal plate. The transformer breakdown transportation method according to any one of claims 1 to 3, wherein when the divided plinth iron cores are transported, the divided plinth iron cores are transported in a state of being fastened in a stacking direction. The method according to claim 4, wherein when the divided plinth iron cores are transported, fasteners are arranged outside the divided plinth iron cores, and the fasteners are transported in a state where the plinth iron cores are fastened in the stacking direction. Transformer disassembly and transportation method. The through rod is formed in the through hole according to claim 4, wherein a through hole is formed through the metal plate of the divided core iron core in a stacking direction, and the metal plate is stacked in the stacked state when the divided core iron core is transported. And transport it in a state where the plinth iron core is fastened in the lamination direction by the through rod. The method according to claim 4, wherein in transporting the divided plinth iron cores, a joint support is attached to the divided surface of the divided plinth iron cores, and the divided plinth iron cores and the joint support are joined together in the lamination direction of the plinth iron cores. Transformer disassembly transport method, characterized in that to transport. The method according to any one of claims 1 to 3, wherein when the divided plinth iron cores are transported, the divided plinth iron cores are accommodated in a transport tank and transported in a state where the divided plinth iron cores are fixed in a transport tank. Transformer disassembly transport method characterized. The transformer disassembly transportation method according to claim 8, wherein when the divided plinth iron cores are transported, the divided plinth iron cores are transported in a fixed state in the transport tank by wires. 10. A jack according to claim 8, wherein a jack is disposed between the divided plinth iron cores and the inner surface of the transport tank when the divided plinth iron cores are transported, and the jacks are pressed in the stacking direction by the jacks. Transformer disassembly transport method, characterized in that to transport. The method according to claim 8, wherein at the time of transporting the divided plinth iron cores, at least one iron core support is disposed between the divided plinth iron cores and the inner surface of the transport tanks, thereby moving the plinth iron cores in the transport tanks. Transformer disassembly transportation method characterized in that. The method according to claim 8, wherein when transporting the divided plinth iron cores, an iron core supporting filler is filled between the divided plinth iron cores and the inner surface of the transport tank, thereby restricting the movement of the plinth iron cores in the transport tank. Transformer disassembly transport method characterized. The transformer disassembly and transport method according to any one of claims 1 to 3, wherein an adhesive is applied to the laminated end surfaces of the plurality of metal plates when the divided core iron cores are transported. A plurality of metal cores are formed by stacking a plurality of metal plates, the iron cores including a plurality of core iron cores arranged in parallel to each other in a plane in which the metal plate extends, and a yoke for connecting the ends of the core iron cores to a plurality of transport units. In the iron core disassembly and transportation method of transporting to an installation site and assembling at this installation site, Dividing each of the core iron cores and the yoke, and dividing each of the core iron cores by at least two in a dividing surface in a direction in which the core iron core extends, Packing the divided core iron cores separately and transporting them to the installation site while keeping the metal plate horizontal. Iron core decomposition transport method characterized in that.

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