JP2005153958A - Transport-packing method and transport-packing system of transformer coil - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transport-packing system of a transformer coil in which a coil exclusive transport tank is not required for each phase of a transformer coil manufactured as a spare. <P>SOLUTION: The transport-packing system comprises a film pack 2b for preventing moisture absorption in which one phase of a transformer coil 3 of three phases manufactured as a spare is stored in a sealable manner, a desiccant 4 charged in the film pack 2b for preventing humidity absorption, and one dry container 1 capable of storing all the transformer coil 3 for three phases which are respectively stored in the film pack 2b for preventing humidity absorption. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a transport packing method and a transport packing system for a transformer coil manufactured as a spare part.

  In recent years, due to the increase in power demand and the increase in voltage due to the increase in power demand, in order to transport to mountain substations and power stations, The number of cases with very severe conditions is increasing. Therefore, for example, a large-capacity super high voltage transformer must be disassembled and transported separately from the main body, accessories, iron core, coil, and the like due to its transportation conditions.

  Such transformers naturally require assembly of iron cores and coils, connection of lead wires, and installation of parts on site, but work on site is performed outside the transformer tank body. In many cases, the working environment is poor, and there are problems in terms of ensuring reliability.

  The connection work for the lead-out part of the high-voltage part is particularly complicated with lead wires, insulation barriers, bushings, etc., and how to prevent the entry of dust and moisture from the outside is an important point in quality control. Become.

  Therefore, conventionally, as a dust and moisture proofing method for a transformer coil, as shown in Patent Document 1, the upper and lower surfaces and outer peripheral surface of the coil are covered with a moisture proof sheet made of polyethylene film, and the inner peripheral surface of the coil is oil resistant. Each of the moisture-proof sheets is bonded by thermocompression bonding. The polytetrafluoroethylene film is covered with a moisture-proof sheet made of a composite sheet having a polyethylene film at its end. In addition, a moisture-proof cap made of polyethylene is attached to the lead-out part so as to cover the lead-out line, and is fixed to the moisture-proof sheet on the outer peripheral surface of the coil by thermocompression bonding to form a sealed structure.

  On the other hand, for overseas, transformer coils may be manufactured as spare parts, and since these coils are not disassembled and transported as described above, they are not assembled locally. Each phase is accommodated in a coil-dedicated transport tank without corresponding to such disassembly and transportation.

  FIG. 3 is a schematic configuration diagram of a conventional transformer coil transportation packaging system manufactured as a spare part. As shown in the figure, the conventional transportation packaging system includes a coil dedicated transportation tank 12 and a dry air generator or nitrogen gas generator. The coil dedicated transport tank 12 includes a coil mounting table 12a and a tank body 12b.

  The coil mounting table 12a is formed in, for example, a square flat plate shape, and a simulated iron core 12a1 for preventing coil-type breakage formed in a cylindrical shape is provided upright at the center thereof. As for the transformer coil 3, the window part is inserted in the simulation iron core 12a1, and is mounted on the coil mounting base 12a. The tank body 12b is formed in a rectangular parallelepiped shape, and a flange portion is formed at the periphery of the opening formed on one surface thereof. The flange portion and the plate-like periphery of the coil mounting table 12a are appropriately arranged. The tank body 12b is attached to the coil mounting table 12a by the fastening means, the inside of the coil dedicated transport tank 12 is hermetically sealed, and the transformer coil 3 is shut off from the outside air. The coil dedicated transport tank 12 is filled with dry air or nitrogen gas.

  The tank body 12b is provided with a valve 12b1 for sealing dry air or nitrogen gas. For example, two L-shaped channels 12a2 are attached to the lower surface of the coil mounting table 12a in order to lift the transport tank 12 to an appropriate transport means by, for example, a forklift. The coil dedicated transport tank 12 is prepared for each phase.

In the conventional coil packaging system as described above, the transformer coil 3 is first attached to the coil mounting table 12b. Next, the tank body 12b is lifted by a crane or the like, and attached to the coil mounting table 12a with its opening facing downward. Thereafter, the valve 12b1 is connected to the dry air generating device or the nitrogen gas sealing device 5 with a hose or the like, and the dry air generating device is operated so that the dry air is sealed in the coil dedicated transport tank 12 via the valve 12b1. The Alternatively, in order to prevent moisture absorption of the transformer coil 3, by operating the nitrogen gas sealing device, nitrogen gas is sealed in the coil dedicated transport tank 12 through the valve 12b1, and the coil dedicated transport tank 12 is completed. . The dry air generator and the nitrogen gas generator 5 are removed together with the hose from the valve 12b1 when the respective enclosures are completed. Note that a large amount of desiccant may be put into the coil dedicated transport tank 12 instead of dry air or nitrogen gas. The transformer coil 3 is naturally dried in advance.
Japanese Patent Laid-Open No. 9-50915 (page 3-4, FIG. 1)

  In such a transport packaging system, since a coil-dedicated transport tank is required for each phase, there is a problem that the tank sealing operation becomes complicated. In addition, there is a problem that the production cost and material cost of the tank are increased. In addition, there is a problem that the logistics costs associated with tank transportation increase.

  An object of the present invention is to provide a method for transporting and packing a transformer coil that does not require a coil-dedicated transport tank for each phase of a transformer coil manufactured as a spare part.

  Another object of the present invention is to provide a transformer coil transport packaging system that does not require a coil-dedicated transport tank for each phase of a transformer coil manufactured as a spare part.

  The first invention is directed to a method for transporting and packing a transformer coil manufactured as a spare part. The transformer coil is stored in a moisture absorption preventing film pack for each phase, and a desiccant is contained in the moisture absorption preventing film pack. And a step of storing three-phase transformer coils respectively stored in a moisture absorption preventing film pack in one dry container.

  In the first invention, the configuration for storing the transformer coil in a hermetically sealed state is simplified, and it is not necessary to manufacture a conventional coil-dedicated transport tank.

  The second invention is directed to a method for transporting and packing a transformer coil manufactured as a spare part. The transformer coil is stored in a film pack for preventing moisture absorption for each phase, and dry air is contained in the film pack for preventing moisture absorption. Or it consists of the process which encloses and seals nitrogen gas, and the process which accommodates the transformer coil for 3 phases each accommodated in the film pack for moisture absorption prevention in one dry container.

  In the second invention, the structure for storing the transformer coil in a hermetically sealed state and the structure for enclosing dry air or nitrogen gas are simplified, and there is no need to manufacture a conventional coil-dedicated transport tank.

  A third invention is directed to a transformer coil transport packaging system manufactured as a spare part, and includes a moisture absorption preventing film pack in which one phase of the transformer coil is hermetically stored and a moisture absorption preventing film pack. A desiccant to be charged and a single dry container that can store all of the three-phase transformer coils respectively stored in the moisture absorption preventing film pack are provided.

  In 3rd invention, the structure which accommodates a transformer coil in the airtight state is simplified, and it becomes unnecessary to manufacture the conventional transport tank only for coils.

  A fourth invention is directed to a transformer coil transportation packaging system manufactured as a spare part, and includes a moisture absorption preventing film pack in which one phase of the transformer coil is hermetically stored, and a moisture absorption preventing film pack. Removable dry air generator that encloses dry air or removable nitrogen gas generator that encloses nitrogen gas, and all three-phase transformer coils stored in the moisture absorption prevention film pack can be stored. One dry container is provided.

  In the fourth aspect of the invention, the structure for storing the transformer coil in a hermetically sealed state and the structure for enclosing dry air or nitrogen gas are simplified, and there is no need to manufacture a conventional coil dedicated transport tank.

  As described above, according to the first invention, the structure for storing the transformer coil in a sealed state is simplified, and it is not necessary to manufacture a conventional coil-dedicated transport tank. It is possible to provide a transportation packaging method in which the cost of the configuration of storing in a sealed state is reduced, and the sealing operation for shutting off the transformer coil from the outside air is simplified. In addition, since the transportation means can be changed from a cargo ship to a container ship, a transportation packaging method with reduced logistics costs can be achieved.

  According to the second invention, the structure for storing the transformer coil in a hermetically sealed state and the structure for enclosing dry air or nitrogen gas are simplified, and there is no need to manufacture a conventional coil-dedicated transport tank. Therefore, the cost of the structure which accommodates a transformer coil in the airtight state can be further reduced, and the transport packaging method in which the airtight operation for shutting off the transformer coil from the outside air can be simplified. In addition, since the transportation means can be changed from a cargo ship to a container ship, a transportation packaging method with reduced logistics costs can be achieved.

  According to the third aspect of the invention, the structure for storing the transformer coil in a sealed state is simplified, and it is not necessary to manufacture a conventional coil-dedicated transport tank, so that the transformer coil is stored in a sealed state. It is possible to provide a transportation packaging system in which the cost of the configuration is reduced and the sealing operation for shutting off the transformer coil from the outside air is simplified. In addition, since the transportation means can be changed from a cargo ship to a container ship, a transportation packaging system with reduced logistics costs can be obtained.

  According to the fourth invention, the structure for storing the transformer coil in a hermetically sealed state and the structure for enclosing dry air or nitrogen gas are simplified, and there is no need to manufacture a conventional coil-dedicated transport tank. Therefore, the cost of the configuration for storing the transformer coil in a hermetically sealed state can be further reduced, and the transport packaging system in which the sealing operation for shutting off the transformer coil from the outside air can be simplified. In addition, since the transportation means can be changed from a cargo ship to a container ship, a transportation packaging system with reduced logistics costs can be obtained.

  FIG. 1 is a schematic configuration diagram illustrating a first embodiment of a transformer coil transportation packaging system according to the present invention. As illustrated, the transportation packaging system of the present embodiment includes one dry container 1 and three packaging containers. The coil storage pack 2 includes a coil mounting table 2a and a moisture absorption preventing film pack 2b.

  The coil mounting table 2a is formed, for example, in a circular flat plate shape, and a simulated iron core 2a1 for preventing coil-type breakage formed in a cylindrical shape is provided upright at the center. As for the transformer coil 3, the window part is inserted in the simulation iron core 2a1, and is mounted on the coil mounting base 2a. The moisture absorption preventing film pack 2b is formed in a bag shape, is attached so as to cover the transformer coil 3, and the periphery of the opening is not shown in the figure on the plate-shaped periphery of the coil mounting table 2a. By sticking with a tape or the like, the moisture absorption preventing film pack 2b is hermetically sealed, and the transformer coil 3 is shut off from the outside air. In this embodiment, the desiccant 4 is contained in the moisture absorption preventing film pack 2b.

  The coil storage pack 2 is prepared for each phase, and the three-phase coil storage pack 2 is stored in one dry container 1. The dry container 1 is formed in a rectangular parallelepiped shape and is provided with double doors 1a and 1a on one side surface in the longitudinal direction, and can accommodate all the transformer coils 3 for three phases. For example, two L-shaped channels 2a2 are attached to the lower surface of the coil mounting table 2a in order to lift and carry the coil storage pack 2 to the dry container 1, for example, with a forklift.

  In such a transformer coil transport packaging system, first, the transformer coil 3 is attached to the coil mounting table 2a. Next, it attaches to the coil mounting base 2a with the opening of the film pack 2b for moisture absorption prevention facing downward. At this time, a large amount of desiccant 4 is introduced into the moisture absorption preventing film pack 2b to complete the coil storage pack 2 for one phase. Thereafter, the three-phase coil storage pack 2 is stored in the dry container 1. The transformer coil 2 is naturally dried in advance.

  FIG. 2 is a schematic configuration diagram showing a second embodiment of the transformer coil transport packaging system according to the present invention. As shown in the figure, the transport packaging system of this embodiment includes one dry container 1 and three The coil storage pack 2 includes a dry air generator or a nitrogen gas generator 5, and the coil storage pack 2 includes a coil mounting table 2a and a moisture absorption preventing film pack 2b.

  The coil mounting table 2a is formed, for example, in a circular flat plate shape, and a simulated iron core 2a1 for preventing coil-type breakage formed in a cylindrical shape is provided upright at the center. As for the transformer coil 3, the window part is inserted in the simulation iron core 2a1, and is mounted on the coil mounting base 2a. The moisture absorption preventing film pack 2b is formed in a bag shape, is attached so as to cover the transformer coil 3, and the periphery of the opening is not shown in the figure on the plate-shaped periphery of the coil mounting table 2a. By sticking with a tape or the like, the moisture absorption preventing film pack 2b is hermetically sealed, and the transformer coil 3 is shut off from the outside air. In this embodiment, dry air or nitrogen gas is enclosed in the moisture absorption preventing film pack 2b.

  The coil mounting table 2a is provided with a valve 2a2 for enclosing dry air or nitrogen gas. The coil storage pack 2 is prepared for each phase, and the three-phase coil storage pack 2 is stored in one dry container 1. The dry container 1 is formed in a rectangular parallelepiped shape, and is provided with door-opening doors 1a and 1a on one side surface in the longitudinal direction, and can accommodate all the transformer coils 3 for three phases. For example, two L-shaped channels 2a3 are attached to the lower surface of the coil mounting table 2a in order to lift and carry the coil storage pack 2 to the dry container 1, for example, with a forklift.

  In such a transformer coil transport packaging system, first, the transformer coil 3 is attached to the coil mounting table 2a. Next, it attaches to the coil mounting base 2a with the opening of the film pack 2b for moisture absorption prevention facing downward. Thereafter, the valve 12b1 is connected to the dry air generating device or the nitrogen gas sealing device 5 with a hose or the like, and the dry air generating device is operated so that the dry air is sealed in the coil storage pack 2 via the valve 2a2. The coil storage pack 2 is completed. Alternatively, in order to prevent moisture absorption of the transformer coil 3, by operating the nitrogen gas sealing device, nitrogen gas is sealed in the coil storage pack 2 via the valve 2a2, and the coil storage pack 2 is completed. The dry air generator and the nitrogen gas generator 5 are removed together with the hose from the valve 12b1 when the respective enclosures are completed. The transformer coil 3 is naturally dried in advance.

It is a schematic block diagram which shows 1st Embodiment of the transport packaging system of the transformer coil which concerns on this invention. It is a schematic block diagram which shows 2nd Embodiment of the transport packaging system of the transformer coil which concerns on this invention. It is a schematic block diagram of the conventional transportation packaging system of a transformer coil.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dry container 2b Hygroscopic prevention film pack 3 Transformer coil 4 Desiccant 5 Dry air generator or nitrogen gas generator

Claims (4)

In the method of transporting and packing transformer coils manufactured as spare parts,
Storing the transformer coil in a moisture absorption preventing film pack for each phase;
Adding a desiccant into the moisture absorption preventing film pack and sealing it;
A method for transporting and packing transformer coils, comprising: storing the transformer coils for three phases stored in the moisture absorption preventing film pack in one dry container. In the method of transporting and packing transformer coils manufactured as spare parts,
Storing the transformer coil in a moisture absorption preventing film pack for each phase;
Sealing and sealing dry air or nitrogen gas in the moisture absorption preventing film pack;
A method for transporting and packing transformer coils, comprising: storing the transformer coils for three phases stored in the moisture absorption preventing film pack in one dry container. In the transport packaging system for transformer coils manufactured as spare parts,
A film pack for preventing moisture absorption in which one phase of the transformer coil is stored in a sealable manner;
A desiccant put into the film pack for moisture absorption prevention;
A transformer coil transport packaging system, comprising: one dry container that can store all of the three-phase transformer coils stored in the moisture absorption preventing film pack. In the transport packaging system for transformer coils manufactured as spare parts,
A film pack for preventing moisture absorption in which one phase of the transformer coil is stored in a sealable manner;
A detachable dry air generator for enclosing dry air in the moisture absorption prevention film pack or a detachable nitrogen gas generator for enclosing nitrogen gas;
A transformer coil transport packaging system, comprising: one dry container that can store all of the three-phase transformer coils stored in the moisture absorption preventing film pack.

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