JPH03297116A - Transportation method of transformer - Google Patents

Abstract

PURPOSE:To reduce the transportation height when a tank for transportation use is loaded on a general low-floor trailer, to simplify an assembly installation at a site, to reduce an assembly part to a minimum, to shorten an assembly time and to enhance an assembly quality by a method wherein the tank for transportation use is inserted into an opening hole in a bed and it is transported. CONSTITUTION:A trailer-bed opening hole 3 is formed in a trailer reinforcement beam 11 of a trailer bed 2 of a general low-floor trailer 1. An upper-part tank and a lower- part tank 4a, 4b, for transportation use, which have housed a content constituted of an iron core 5, an iron-core lower-part yoke 6, an upper-part clamping metal fitting and a lower-part clamping metal fitting 7a, 7b in an erected state are inserted into the hole 3. Support metal fittings 10 are attached to the tank 4b; the metal fittings 10 are mounted on and fixed to the bed 2 so as not to protrude downward from the lower end of the trailer reinforcement beam 11. In addition, the upper-part side of the content is fixed in such a way that upper-part content swing-preventing pins 8 attached to the metal fittings 7a are inserted into grooves or holes in upper-part swing-preventing fixed metal fittings 9 attached to the inside of the upper-part tank 4a for transportation use. Thereby, an assembly installation is simplified, an installation time and a process at a site are shortened, an assembly quality is enhanced and a cost can be lowered.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a method for transporting a transformer, in which the contents of the transformer are disassembled, loaded onto a low-floor trailer, and transported to a site.

(Prior Art) In recent years, as the demand for electric power has increased, the voltage of power transmission systems has become higher, such as 500 KV power transmission, and the transformers used for power transmission and transformation have also become larger and larger in capacity. Furthermore, as power transmission systems become longer and longer, transformers are increasingly being installed in mountainous areas where transportation conditions are harsh, necessitating a significant reduction in transportation dimensions.

However, even when loaded onto a general low-floor trailer and transported, it is often impossible to assemble and transport the contents of a large-capacity transformer to mountainous areas due to height limitations.

Conventionally, as a method of transporting large-capacity transformers installed in such locations, the transformers assembled at the factory were transported by transporting them on the core legs, on the core
There is a method of disassembling and transporting the lower yoke, coil, split tank, etc. and reassembling it on site.

(Problem to be Solved by the Invention) In the method of disassembling, disassembling, and reassembling on site, the core legs are laid down at the site, the lower yoke is stacked, and then the core is erected, which requires large-scale assembly and erection equipment and space. is necessary. Furthermore, it takes a long time to stand up the disassembled parts again, and as a result, the insulator absorbs moisture, necessitating a long drying process.

The present invention consists of the contents of the upper yoke of the coil and iron core (
By reducing the transportation height when loaded on a general low-floor trailer so that the iron core can be transported to the site in an upright state, the on-site assembly equipment can be simplified, the assembly department can be minimized, and assembly time can be shortened.
The purpose is to obtain a transformer assembly method that improves assembly quality.

[Structure of the invention]

(Means for Solving Problem 11) In order to achieve the above-mentioned objects, the present invention provides an opening hole between the strength beams of a general low-floor trailer loading platform so that a transport tank containing the contents of a transformer such as an iron core can be placed on the loading platform. It is designed to be transported by inserting it into an opening in the container.

In a 30-ton general low-floor trailer, the spacing between the strength beams on both sides is approximately 1.
400cm, and even if an opening is provided between them, there will be no problem in terms of trailer strength.

Of the transformer parts, the iron core has the largest transport weight and height. On the other hand, during transportation of the iron core, even a 500Klil A-class transformer has a width of less than 1400K, and has a narrow characteristic. Therefore, among the transformer parts, transporting the iron core in an upright position makes it possible to expand the transport of transformers.

(Function) By inserting the transportation tank into the opening hole of the general low-floor trailer loading platform, the transportation height when loaded on the trailer can be reduced. This makes it possible to transport even large-capacity transformers with only the coil and the upper yoke of the core disassembled in an upright position, eliminating the need for large-scale equipment for raising the core on-site.

(Example) An example of the present invention will be described below with reference to FIGS. 1 and 2.

In FIGS. 1 and 2, a trailer bed opening hole 3 is provided between the trailer reinforcing beams 11 of the trailer bed 2 of the general low-floor trailer 1, and the iron core 5, the iron core lower yoke 6, the upper clamping fitting 7a, The upper and lower transportation tanks 4a and 4b, which are made up of lower clamping fittings 7b and contain the contents in an upright state, are inserted into the opening hole 3 of the trailer loading platform.

A supporting hardware 10 is attached to the lower transport tank 4b, and the supporting hardware 10 is placed on the trailer loading platform 2 and fixed.

The lower transportation tank 4b is made not to protrude below the lower end of the trailer reinforcing beam 11.

The contents are fixed on the upper side by inserting into the groove or hole of the upper steady-rest fixing fitting 9, which is attached to the inside of the upper transport tank 4a, into the upper contents-resting bin 8a, which is attached to the stop part tightening fitting 7a. .

Further, the contents are fixed on the lower side by inserting a lower contents steadying pin 8b attached to the inner side of the bottom plate of the lower transportation tank 4b into a groove or hole of the lower clamping fitting 7b.

12 is a hanging ear for lifting the contents, and 13 is an upper tank for transportation and a weight lifting ear for transportation.

As described above, the trailer bed opening hole 3 is provided in the trailer bed 2, and the transport tanks 4a and 4b are inserted into the trailer bed opening hole 3, and the upper steady rest fixing bracket 9 of the contents is placed above the upper transport tank 4a. Since there is no need to travel, the transportation height can be reduced by about 300 to 400 degrees compared to the conventional general low-floor trailer loading state, which is the height of the strength beam of the trailer loading platform.

(Effects of Example) Due to the above-mentioned effects, conventionally the limit that the core could be transported while standing up was about 300MVA, but with this method, the core of a 500MVA class transformer can be transported even in mountainous areas where transportation conditions are severe. Since it is possible to transport the product while standing up, there is no need for on-site iron core stacking, erection equipment, space, or assembly work, and the work time can also be shortened. Since the work time is short, there is little moisture in the insulator, and a drying process is unnecessary, which shortens the on-site process.

In addition, the number of parts assembled at the factory and transported to the site increases, improving assembly quality.

Since it is transported using a 30-ton general low-floor trailer, there is no need for special reinforcement of roads or bridges, significantly reducing transport costs.

Since opening holes are provided between the strength beams of the trailer bed that do not directly affect the strength, special measures for the strength of the trailer are not required.

FIG. 3 shows a transport tank 4a in the opening hole 3 of the trailer bed.

This is a structure in which a concave transport adapter 14 with a connector 4b attached thereto is inserted.

Upper and lower transport tanks 4a containing the contents as shown in Figure 2
The lower transport tank 4b, the contents, and the upper transport tank are placed in this order on the concave transport adapter 14, which has sufficient strength even when the transport tank 4b is placed thereon.

4b and the transportation adapter 14 are fixed with a wire rope 15. The transport adapter 14 is equipped with a transport hanging lug 16 that can sufficiently withstand the lifting weight of the transport, and is inserted and fixed into the trailer loading hole opening 3 using the transport hanging lug 16.

In this way, by providing the transport adapter 14 that can sufficiently withstand the transport weight, the transport tanks 4a, 4
Since the load for lifting the contents is not applied to b, there is no need to consider the strength for lifting the contents of the transportation tank, and the structure can be simplified.

Furthermore, the transportation adapter 14 can be used repeatedly, which is economical.

〔Effect of the invention〕

According to the present invention, the transport height can be reduced by about 300 to 400 mm by making an opening in the trailer bed and inserting the transport tank containing the contents into the opening hole in the trailer bed. Even large-capacity transformers can be transported to harsh mountainous areas with the core upright, simplifying on-site assembly equipment, minimizing the on-site assembly department, and shortening assembly time.
A method for transporting transformers with improved assembly quality can be obtained.

[Brief explanation of drawings]

Figure 1 is a diagram showing an embodiment of the present invention, and is a schematic side view of a transport tank loaded with contents on a trailer, and Figure 2 is a cross-sectional view during transport and details of how to load it onto the trailer. FIG. 3 is an enlarged side view showing a modification of the loading method. 1... General low floor trailer 2... Trailer loading platform 3
...Trailer bed opening hole 4a...Upper tank for transportation 4b...Lower tank for transportation 5...Iron core leg 6...Iron core lower yoke 7a...Upper tightening fitting 7b...Lower tightening Fittings 8a...Upper content steady rest pin 8b...Lower content steady rest pin 9...Upper steady rest fixing bracket 10...Support hardware 11...Trailer strength beam 12...Hang for lifting content Ear 13... Upper tank for transportation - transport weight hanging ear 14.
・・Transportation adapter 15・Wire rope 16・
...Hanging ears for transportation Figure 1 Figure 3 Figure 2

Claims (1)

[Claims] A transformer characterized in that an opening is provided between the strength beams on both sides of the loading platform of a general low-floor trailer, and a transformer transport tank is inserted and supported within this area within a range that does not protrude below the lower end of the strength beam. Transportation method.