JPH1187141A - Method of disassembling and transporting reactor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of economically disassembling and transporting a reactor, allowing the constraints on transportation to be relaxed greatly and the field installation period to be reduced. SOLUTION: This method of an air-core reactor composed of a cylindrical coil unit vertically disposed in a frame-like magnetic shield consisting of an upper and lower horizontal parts and right and left vertical parts after hermetically sealing the reactor in a transportation tank. The reactor is disassembled in a lower unit 1b of the shield's horizontal part, a U-shaped unit composed of the shield's right and left vertical parts 2a, 2b and an upper unit 1d of the shield's horizontal part with the coil unit sealed hermetically, and all the units fixed to a transportation tank dividable into an upper and lower parts, are sufficient against shocks in transportation, and then transported. This satisfies the transporting limits, reduces the man-hours for reassembling in the field for facilitating the field work and contributes to improvement in quality.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for disassembling and transporting a reactor, and more particularly to a method for disassembling and transporting a reactor which greatly reduces the transport restrictions caused by the weight and height of a magnetically shielded air core reactor.

[0002]

2. Description of the Related Art In recent years, there has been an increasing demand for electric power and a stabilization of electric power quality, and accordingly, a demand for a system interconnection system for interconnecting a system with another system via an AC / DC converter has been increased. ing. A large-capacity air-shielded reactor with a magnetic shield is used as a DC reactor for such an AC / DC converter. In addition, converter stations equipped with such AC / DC converters are sometimes installed in mountainous areas where land prices are low, and the transport conditions for power equipment, including reactors, are becoming more severe and the transport dimensions And a significant reduction in weight is required.

Conventionally, measures have been taken to significantly reduce the size and weight of the transportation by improving the design and by transporting accessories other than the main body separately. However, such transportation methods cannot cope with such restrictions. Is particularly severe, the air-core reactor with a magnetic shield assembled at the factory is replaced with the magnetic shield horizontal portion 1 in FIG. 1 showing the basic configuration of the reactor.
a, 1b, magnetic shield vertical parts 2a, 2b, windings 3, and divided tanks, etc., are transported after being disassembled and subdivided, and reassembled at the site. Since transportation restrictions such as height and height can be cleared, it is possible to transport from a factory to the site by a general trailer without road reinforcement.

[0004]

However, the conventional subdivision and disassembly / transportation method involves a large-scale erecting facility in which magnetic shields are laminated and then erecting on site, as in the case of assembling a factory, and a foundation work for supporting and installing the erecting equipment. Required. Furthermore, since it takes a long time to reassemble the disassembled portion and the winding insulator absorbs moisture, a long drying process is required, which increases the installation period and is economically disadvantageous.

On the other hand, the size and weight of an air-core reactor with a magnetic shield such as a large-capacity DC reactor are extremely large, and the capacity required at the present stage has reached the limit of the size and weight that can be transported. When a large capacity is required, a disassembly and transportation method must be adopted.

In addition, transport restrictions are generally not only weight restrictions, but also dimensional restrictions, especially height restrictions determined by structures such as tunnels and street guards in mountainous areas, and are often severe. I had to take the method.

The present invention has been made in view of the above circumstances, and has as its object to economically disassemble and transport a reactor, which can greatly ease the transportation limit and can shorten the on-site installation period. It is to provide a method.

[0008]

In order to achieve the above-mentioned object, a first aspect of the present invention is a frame-shaped frame having a rectangular cross section formed by laminating silicon steel sheets and having upper and lower horizontal portions and left and right vertical portions. In the method of disassembling and transporting a reactor, which disassembles an air-core reactor comprising a magnetic shield and one cylindrical winding unit vertically arranged in the magnetic shield, and stores the reactor in a transport tank for sealed transport, Sometimes, a U-shaped unit consisting of a lower unit of the horizontal part of the magnetic shield and left and right vertical parts of the magnetic shield,
Disassembled into the upper unit of the horizontal part of the magnetic shield,
Furthermore, after applying a film pack to the winding unit and sealing it tightly, all these magnetic shield units and winding units are fixed and sealed in a transport tank that can be divided vertically so that each unit can withstand the impact during transportation. It is characterized by being transported.

According to a second aspect of the present invention, in the method for disassembling and transporting the reactor according to the first aspect, the frame-shaped magnetic shield is properly assembled in place of the magnetic shield upper unit and the magnetic shield U-shaped unit. It is transported as a square-shaped unit.

According to a third aspect of the present invention, in the method for disassembling and transporting the reactor according to the first aspect, one of the right and left vertical portions of the magnetic shield and the lower unit are replaced with a normal unit instead of the magnetic shield U-shaped unit. It is transported as an integrated L-shaped unit in an assembled state.

According to a fourth aspect of the present invention, in the method for disassembling and transporting a reactor according to the first aspect, the U-shaped unit is placed in a regular tank of a reactor body provided with a support structure so as to withstand an impact during transportation. The upper unit of the horizontal portion of the magnetic shield and the winding unit provided with the film pack are transported in a transport tank.

According to a fifth aspect of the present invention, in the method for disassembling and transporting a reactor according to the second aspect, the square unit is housed in a regular tank of a reactor body provided with a support structure so as to withstand an impact during transportation. A method of disassembling and transporting a reactor, wherein the winding unit provided with the film pack is stored in a transport tank and transported.

According to a sixth aspect of the present invention, in the method for disassembling and transporting a reactor according to the third aspect, the L-shaped unit is placed in a regular tank of a reactor body provided with a support structure so as to withstand an impact during transportation. The upper unit of the horizontal portion of the magnetic shield, the vertical unit of the magnetic shield other than the L-shaped unit component, and the winding unit provided with the film pack are transported in a transport tank.

According to a seventh aspect of the present invention, in the method for disassembling and transporting a reactor according to the first aspect, the transport tank containing the U-shaped unit is turned over or 45 ° from a horizontal plane.
It was transported on a trailer in an inclined state below, and a height-adjustable magnetic shield support structure was attached to the side of the transport tank to receive the weight of the magnetic shield. It is characterized in that the magnetic shield unit can be taken out of the transport tank while standing up as it is, and the standing up magnetic shield unit can be taken out from the transport tank. According to an eighth aspect of the present invention, in the method for disassembling and transporting a reactor according to the second aspect, the transport tank in which the square-shaped unit is contained is laid down or transported on a trailer in a state of being inclined at an angle of 45 ° or less from a horizontal plane. At the side of the transport tank, a height-adjustable magnetic shield support structure is attached to receive the weight of the magnetic shield, and when it is installed on site, it is erected as it is in the transport tank. The magnetic shield unit can be taken out of the transport tank.

According to a ninth aspect of the present invention, in the method for disassembling and transporting the reactor according to the third aspect, the transport tank containing the L-shaped unit is turned over or 45 ° from a horizontal plane.
It was transported on a trailer in an inclined state below, and a height-adjustable magnetic shield support structure was attached to the side of the transport tank to receive the weight of the magnetic shield. The magnetic shield unit in the upright state can be taken out of the transport tank.

According to a tenth aspect of the present invention, in the method for disassembling and transporting the reactor according to the fourth aspect, the trailer is arranged such that the regular tank of the reactor containing the U-shaped unit is turned over or inclined at an angle of 45 ° or less from a horizontal plane. And transport it on the side of the regular tank, attach the height adjustable magnetic shield support structure on the side and receive the weight of the magnetic shield,
It is characterized by being erected while being stored in a regular tank when installed on site.

According to an eleventh aspect of the present invention, in the method for disassembling and transporting the reactor according to the fifth aspect, the regular trailer of the reactor containing the rectangular unit is turned over or the trailer is inclined at 45 ° or less from the horizontal plane. And transport it on the side of the regular tank, attach the height adjustable magnetic shield support structure on the side and receive the weight of the magnetic shield,
It is characterized by being erected while being stored in a regular tank when installed on site.

According to a twelfth aspect of the present invention, in the method for disassembling and transporting the reactor according to the sixth aspect, the regular trailer of the reactor containing the L-shaped unit is turned over or the trailer is inclined at 45 ° or less from a horizontal plane. And transport it on the side of the regular tank, attach the height adjustable magnetic shield support structure on the side and receive the weight of the magnetic shield,
It is characterized by being erected while being stored in a regular tank when installed on site.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a basic structural diagram of an air-core reactor with a magnetic shield to which the present invention is applied. As shown in the figure, an air-core reactor with a magnetic shield is composed of upper and lower horizontal portions 1 having a rectangular cross section in which silicon steel plates are laminated.
The magnetic shield comprises a frame-shaped magnetic shield comprising a, 1b and left and right vertical portions 2a, 2b, and one cylindrical winding 3 vertically arranged in the magnetic shield.

FIG. 2 is an exploded view of a reactor with a magnetic shield according to a first embodiment of the present invention (corresponding to claim 1).
As shown in the figure, when disassembling and transporting this reactor, the upper unit 1a of the magnetic shield horizontal part shown in FIG. 2A and the lower unit 1b of the magnetic shield horizontal part shown in FIG. The U-shaped unit in which the magnetic shield vertical portions 2a and 2b are integrated in a regular assembly state, and the winding 3 protected by an insulating cylinder shown in FIG. Disassembled into units.

FIGS. 3A and 3B show the disassembled magnetic shield U-shaped unit in a transport tank. FIG. 3A is a front view, and FIG. 3B is a side view. As shown in the figure, the U-shaped unit is reinforced so as to withstand a shock during transportation and is housed in a transportation tank. That is, the lower unit 1b and the vertical unit 2 of the U-shaped unit
The reinforcement members a and 2b are assembled together with the reinforcement members 5a and 5b by the regular binding 6, and are connected to the reinforcement member 5a of the vertical unit and the reinforcement member 5b of the lower unit if necessary for strength. The upper portion between the vertical portions 2a and 2b is fixed by a fixing member 7, and has a structure capable of withstanding an impact during transportation.

Then, the U assembled as described above
The letter-shaped unit is composed of a transport tank 8a that can be divided vertically,
8b and the anti-sway structures 9a to 9d provided in the upper and lower tanks 8a and 8b and the reinforcing material 5 for the magnetic shield.
a, 5b, and the fixture 7 are connected to each other to be fixed in the transport tanks 8a, 8b. After the reactor with the magnetic shield is disassembled into units as described above, each unit is fixed to its own transport tank, and then sealed and transported to the site.

Therefore, according to the present embodiment, since the weight and height of each unit during transportation can be reduced, the magnetic shield of a reactor with a large-capacity magnetic shield can be replaced with a U-shaped unit even when transportation is severely restricted. As a transportable. Therefore, the magnetic shield is connected to the horizontal portions 1a, 1
b. Reassembly on site is easier than in the case of subdivided transport in which all vertical parts 2a and 2b are disassembled and transported,
Quality is also improved.

Next, a second embodiment (corresponding to claim 2) of the present invention will be described. This embodiment is different from the first embodiment in that, when there are few restrictions on the weight of the transportation, the upper unit 1a of the regular magnetic shield horizontal portion is used instead of the fixing bracket 7.
And then transported as a square-shaped configuration 1a, 1b, 2a, 2b assembled with a reinforcing material in the same manner as the lower side, that is, a regular magnetic shield configuration. According to the present embodiment, in addition to the effects of the first embodiment, the number of disassembly and transport units can be further reduced, so that the number of on-site assembly steps can be significantly reduced.

FIG. 4 is a view showing a disassembled magnetic shield L-shaped unit according to a third embodiment of the present invention (corresponding to claim 3) housed in a transport tank. FIG. 4 (a) is a front view and FIG. (B) is a side view.

As shown in the figure, in this embodiment, when the restrictions on the transport weight are particularly severe in the first embodiment, the magnetic shield lower unit 1b and the vertical unit 2a, 2b
An L-shaped unit in which either of the above is properly assembled is connected to the transport tanks 8a and 8b which can be divided into upper and lower parts by connecting members 10a and 10b.
10b, using the fixtures 11a and 11b, fixed and transported similarly to the U-shaped unit of the first embodiment. According to the present embodiment, in addition to the effects of the first embodiment, the weight of the disassembly / transport unit can be further reduced, and it is possible to cope with a case where the transport restrictions are severe.

Next, a fourth embodiment (corresponding to claims 4 to 6) of the present invention will be described. In the present embodiment, a case where the same support structure as that of the transport tanks 8a and 8b which can satisfy the transport restrictions in the first to third embodiments and which can be divided into upper and lower parts can be applied to the regular tank. The U-shaped, U-shaped or L-shaped unit is transported in a regular tank provided with the support structure.

According to the present embodiment, in addition to the effects of the first to third embodiments, the number of transport units can be further reduced, so that the man-hours at the time of manufacturing a factory and assembling on site can be reduced. .

FIG. 5 is a view showing a method of transporting a U-shaped, U-shaped or L-shaped unit of a reactor with a magnetic shield by a trailer according to a fifth embodiment of the present invention (corresponding to claims 7 to 12). FIG. 6 and FIG. 7 are diagrams showing a method of standing the transported unit on site.

As shown in the figure, the present embodiment is the same as the second embodiment.
In the fourth to fourth embodiments, when the restriction on the transport height is particularly severe, the U-shaped, R-shaped, or L-shaped unit can be divided into upper and lower transport tanks 8a and 8b, or the regular tank can be laid sideways or from a horizontal plane. The transport is carried on the trailer 12 in a state of being inclined at 45 ° or less. A height-adjustable magnetic shield support structure 13 is provided on the side surface inside the transport tanks 8a and 8b, so that the weight of the magnetic shield when it is turned over is received.

At the site, as shown in FIG. 6, the transport tanks 8a and 8b or the regular tanks are lowered onto the erecting device 14 with the transport tanks 8a and 8b left sideways.
a, 8b, or standing in the state of being put in the regular tank. Further, as shown in FIG. 7, the transport tanks 8a, 8
If the reinforcing beam 16 is attached to b, the reinforcing beam 16 is lowered while being laid down sideways, and is erected while being placed in the transport tanks 8a and 8b or the regular tank. After the standing is completed, the U-shaped, U-shaped or L-shaped unit is taken out of the transport tanks 8a and 8b or the regular tank.

In accordance with the above-mentioned work, hanging ears 15 are attached to the transport tanks 8a, 8b or the regular tanks so that both of them can be hung up and down in a standing state. I have. According to this embodiment,
In addition to the effects of the first to fourth embodiments, the height dimension of the disassembly / transport unit can be further reduced, and it is possible to cope with a case where transport restrictions are severe.

[0033]

As described above, according to the method of disassembling and transporting the air-core reactor with the magnetic shield according to the present invention (corresponding to claims 1 to 12), the transport limitation, particularly the weight limitation and the height dimension. , The transport limit can be satisfied, and at the same time, the number of on-site reassembly steps can be reduced, the on-site work can be facilitated, and the quality can be improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an air-core reactor with a magnetic shield to which the present invention is applied.

FIG. 2 is an exploded view of an air-core reactor with a magnetic shield according to the first embodiment of the present invention.

FIG. 3A is a front view showing a transportation state of the U-shaped unit in FIG. 2, and FIG. 3B is a side view thereof.

FIG. 4A is a front view showing a transportation state of an L-shaped unit according to a third embodiment of the present invention, and FIG. 4B is a side view thereof.

FIG. 5 is a view showing a transportation method according to a fourth embodiment of the present invention.

FIG. 6 is a view showing a method of standing on site in FIG. 5;

FIG. 7 is a view showing another standing method in the field of FIG. 5;

[Explanation of symbols]

1a: Upper unit of magnetic shield horizontal part, 1b: Lower unit of magnetic shield horizontal part, 2a, 2b: Vertical part of magnetic shield, 3 ... Winding, 4 ... Oil resistant moistureproof film, 5
a, 5b: reinforcement, 6: bind, 7: fixing bracket, 8a
... upper tank for transportation, 8b ... lower tank for transportation, 9a-
9d ... steady rest structure, 10a, 10b ... connecting material, 11
a, 11b: Fixing bracket, 12: Trailer, 13: Magnetic shield indicating structure, 14: Standing device, 15: Hanging ear, 16
... reinforcing beams.

Claims (12)

[Claims] 1. A frame-shaped magnetic shield comprising a horizontal portion and left and right vertical portions of an upper and lower unit having a rectangular cross section in which silicon steel sheets are laminated, and one cylindrical shape vertically disposed in the magnetic shield. In the reactor disassembly / transport method of disassembling the air-core reactor composed of the winding unit of the present invention and placing it in a transport tank for sealed transport, the lower unit of the horizontal portion of the magnetic shield and the left and right sides of the magnetic shield during transport of the reactor. A U-shaped unit consisting of a vertical part,
Disassembled into the upper unit of the horizontal part of the magnetic shield,
Furthermore, after applying a film pack to the winding unit and sealing it tightly, all these magnetic shield units and winding units are fixed and sealed in a transport tank that can be divided vertically so that each unit can withstand the impact during transportation. A method for decomposing and transporting a reactor, comprising transporting the reactor. 2. The method for disassembling and transporting a reactor according to claim 1, wherein the frame-shaped magnetic shield is transported as a square-shaped unit in a properly assembled state instead of the upper unit of the magnetic shield and the magnetic shield U-shaped unit. A method for decomposing and transporting a reactor. 3. The method for disassembling and transporting a reactor according to claim 1, wherein one of the right and left vertical portions of the magnetic shield and the lower unit are integrally assembled in a properly assembled state instead of the U-shaped unit of the magnetic shield. And disassembling and transporting the reactor as an L-shaped unit. 4. The method for disassembling and transporting a reactor according to claim 1, wherein the U-shaped unit is housed in a regular tank of a reactor body provided with a support structure so as to withstand an impact during transportation, and a horizontal portion of the magnetic shield is provided. And disposing and transporting the upper unit and the winding unit provided with the film pack in a transport tank. 5. The method for disassembling and transporting a reactor according to claim 2, wherein the square unit is placed in a regular tank of a reactor body provided with a support structure so as to withstand an impact during transportation, and the film pack is applied. A method of disassembling and transporting a reactor, wherein the winding unit is transported in a transport tank. 6. The method for disassembling and transporting a reactor according to claim 3, wherein the L-shaped unit is housed in a regular tank of a reactor body provided with a support structure so as to withstand an impact during transportation, and a horizontal portion of the magnetic shield is provided. Wherein the upper unit, the magnetic shield vertical unit other than the L-shaped unit component, and the winding unit provided with the film pack are stored in a transport tank and transported. 7. The method for disassembling and transporting a reactor according to claim 1, wherein the transport tank containing the U-shaped unit is transported sideways or transported on a trailer in a state of being inclined at an angle of 45 ° or less from a horizontal plane. A height-adjustable magnetic shield support structure is attached to the side of the transport tank to receive the weight of the magnetic shield.When installed on-site, the magnetic shield unit stands up in the transport tank when it is installed. A method of disassembling and transporting a reactor, wherein the reactor can be taken out of a transport tank. 8. The method for disassembling and transporting a reactor according to claim 2, wherein the transport tank containing the rectangular unit is laid down or transported on a trailer in a state of being inclined at an angle of 45 ° or less from a horizontal plane. A height-adjustable magnetic shield support structure is attached to the side of the transport tank to receive the weight of the magnetic shield, and when installed on-site, it stands up in the transport tank when it is installed. A method for disassembling and transporting a reactor, wherein the reactor can be taken out of a transport tank. 9. The method for disassembling and transporting a reactor according to claim 3, wherein the transport tank containing the L-shaped unit is transported sideways, or transported on a trailer in a state of being inclined at an angle of 45 ° or less from a horizontal plane. A height-adjustable magnetic shield support structure is attached to the side of the transport tank to receive the weight of the magnetic shield, and when installed on-site, it stands up in the transport tank when it is installed. A method for disassembling and transporting a reactor, wherein the reactor can be taken out of a transport tank. 10. The method for disassembling and transporting a reactor according to claim 4, wherein a regular tank of the reactor containing the U-shaped unit is placed on a trailer in a state where the tank is turned over or inclined at an angle of 45 ° or less from a horizontal plane, A method for disassembling and transporting a reactor, characterized in that a height-adjustable magnetic shield support structure is attached to the side of the regular tank, receives the weight of the magnetic shield, and is then stood up in the regular tank when installed on site. 11. The method for disassembling and transporting a reactor according to claim 5, wherein a regular tank of the reactor containing the rectangular unit is placed sideways or transported on a trailer in a state inclined at 45 ° or less from a horizontal plane, A method for disassembling and transporting a reactor, characterized in that a height-adjustable magnetic shield support structure is attached to the side of the regular tank, receives the weight of the magnetic shield, and is then stood up in the regular tank when installed on site. 12. The method for disassembling and transporting a reactor according to claim 6, wherein a regular tank of the reactor containing the L-shaped unit is laid down or transported on a trailer in a state inclined at 45 ° or less from a horizontal plane, A method for disassembling and transporting a reactor, characterized in that a height-adjustable magnetic shield support structure is attached to the side of the regular tank, receives the weight of the magnetic shield, and is then stood up in the regular tank when installed on site.