JPH07102906A - Turbine carrying frame,turbine carrying method, turbine repairing method, and turbine storing method - Google Patents

Abstract

PURPOSE:To provide a turbine carrying frame, on which turbines can be placed according to the kind of turbines, which can be disassembled to allow users to use the table repeatedly to eliminate to scrap the table, and as a result, can make effective use of resources, turbine carrying method, and turbine repairing method. CONSTITUTION:A turbine carrying frame is provided with a beam body 21, on the top of which a turbine supporting table is provided, four lateral beams 22 and 23 which are provided so as to be extended in the outside directions nearly orthogonally crossing to each other from the side faces of this beam body, four supporting block bodies 34 which are arranged in each space section formed by two lateral beams adjacent to each other and support at their top end sections, and an adjusting device which adjusts the distance between the supporting block bodies by adjusting these four supporting block bodies in longitudinal and cross directions to each lateral beam.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention can be installed in various turbines and can be disassembled so that it can be used many times without the need to dispose of each time, resulting in effective utilization of resources. And a turbine transportation method and a turbine repair method.

[0002]

2. Description of the Related Art When transporting a relatively large steam turbine used in a power plant or the like, a so-called integral transportation method is used in which the steam turbine is assembled to some extent on a temporary mount and the steam turbine is transported together with the temporary mount. Adopted, especially used for transportation of export plants. This integrated transportation method not only shortens the assembly period on site and saves the construction cost, but also makes it difficult to adjust the construction period in areas where the working environment is poor, such as severe cold and hot weather, and the assembly of steam turbines. It is indispensable in the field where it is difficult to collect human resources for work requiring skill.

FIGS. 6 to 7 show an example of conventional integrated transportation of a high-pressure turbine portion of a steam turbine for a large power plant. As shown in FIG. 6, a gantry 1 for integral transportation for mounting a high-pressure turbine portion is prepared in a turbine manufacturing factory. This pedestal 1 is provided with a foundation 2 assembled by welding H-shaped steel or the like, and four support beams 3 are fixed on the foundation 2 by welding or the like.
Four mounting portions 4 for mounting the high-pressure turbine portion are fixed on each of them.

There is a case where such a gantry 1 is arranged in a turbine manufacturing factory and the high pressure turbine part 5 is assembled on the gantry 1, and a case where the assembled high pressure turbine part is mounted on the gantry 1. . That is, in the case of the former, as shown in FIG. 6, on the mounting portion 4, the outer casing lower half 6, the inner casing lower half 7, the nozzle lower half 8, the rotor 9, and the nozzle upper half 10 are sequentially arranged. The upper half 11 of the inner compartment and the upper half 12 of the outer compartment are assembled. In the latter case, the high-pressure turbine part in which these parts have been assembled is mounted on the mounting part 4 of the gantry 1.

FIG. 7 shows, in both such cases,
The state where the assembled high-pressure turbine portion 5 is mounted on the gantry 1 is shown. As a result, the high-pressure turbine part 5 is transported to the construction site together with the gantry 1.

Next, as shown in FIG. 8, at the construction site,
The high-pressure turbine portion 5 is suspended from the gantry 1 by being suspended by the wire 13, and the assembled high-pressure turbine portion 5 is installed at a predetermined position.

As described above, since it is not necessary to assemble and adjust the above-mentioned turbine parts at the site, the cost is increased in terms of factory assembly cost and transportation cost, but the cost is reduced due to the shortened construction period and reduction of construction cost. The reduction effect is far greater. Furthermore, as mentioned above, the assembly of the turbine, which requires skilled and advanced assembly techniques,
Considering the human resources, materials, working environment, safety and quality control, it is difficult to replace it in the turbine assembly plant, which is more advantageous than the local one, considering the social importance of the power plant. From this point of view, the integrated transportation method is very useful and is frequently used for turbine transportation.

[0008]

While the integrated transportation method is useful as described above, the integrated transportation pedestal 1 used therefor has the following problems.

That is, since the high-pressure turbine portion 5 has a total weight of 100 tons or more, and the pedestal 1 needs to mount such a high-pressure turbine portion 5, the pedestal 1
Requires high rigidity, and the weight of the gantry 1 may exceed several tons to 10 tons.
It is a heavy object with high rigidity.

Further, since the high-pressure turbine part 5 is a made-to-order product, the gantry 1 is also newly designed and produced each time the turbine is designed. The pedestal should be designed and produced for each turbine. Is very laborious and time consuming.

As described above, the gantry 1 for integral transportation is a heavy and highly rigid object, and is designed and manufactured with time and labor, and is designed for each turbine despite being expensive. -Because it needs to be produced, it is discarded at the construction site after each use. Therefore, the conventional pedestal is extremely wasteful, which is a big problem in terms of effective use of resources. Further, even if the gantry 1 is brought back without being discarded at the site, it is difficult to reuse it for another turbine because it is manufactured for each turbine.

The object of the present invention has been made in view of the above-mentioned circumstances, and it can be mounted corresponding to various turbines and can be disassembled, whereby it is unnecessary to dispose of each time and many It is an object of the present invention to provide a turbine transportation platform, a turbine transportation method, and a turbine repair method that can be reused and, as a result, can effectively utilize resources.

[0013]

In order to achieve this object, a turbine transportation pedestal according to the present invention is a turbine transportation pedestal for mounting and transporting a turbine, which is an on-board object. A beam main body provided on the upper surface, four horizontal beams provided so as to respectively extend from the side surfaces of the beam main body to outer sides substantially orthogonal to each other, and space portions formed by two horizontal beams adjacent to each other And four support block bodies that are arranged at the top end to support the mounted object, and an adjustment device that adjusts these four support block bodies to the front, rear, left, and right with respect to each cross beam to adjust the spacing between the respective support block bodies, It is characterized by having.

Further, the present invention is characterized in that a turbine is mounted on such a mount for transportation, and that a turbine is mounted on the mount for repair.

[0015]

As described above, according to the present invention, four support blocks are provided in each space formed by two adjacent horizontal beams of the four horizontal beams provided in the beam main body. The spacing between the support block bodies can be adjusted by an adjusting device, and the lateral beam, the support block body, and the like can be disassembled. Therefore, even if the turbine has various sizes, the pedestal can be adjusted following it, and the lateral beam of the gantry, the support block body, and the like can be disassembled.

Therefore, when the gantry is used, the distance between the support block bodies of the gantry is adjusted according to the size of the turbine, and the turbine parts are sequentially assembled on the gantry, or the assembling is completed. The installed turbine is mounted on the frame. In this state, the turbine is transported together with the stand,
The turbine is removed from the gantry at the construction site. After use,
The frame is disassembled so as not to be bulky and brought back to a turbine factory or the like. Since the gantry is disassembled and transported in this way, transportation costs are reduced. Then, in a turbine factory or the like, the gantry is again adjusted to fit a turbine of another size and used for transportation of this turbine.

Therefore, the pedestal is used many times and does not need to be discarded after each use as in the conventional case. It is a heavy and rigid object and is designed and constructed with time and effort. It is possible to efficiently use the produced expensive gantry, and eventually to effectively use resources. In recent years, when turbines are frequently transported and repaired, the labor-saving and resource-saving effects of the present invention are enormous.

Further, when repairing the turbine, for example, when the turbine casing is replaced, it can be used as a pedestal for temporary assembly to shorten the plant stop period for replacement.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A turbine transportation mount, a turbine transportation method, and a turbine repair method according to an embodiment of the present invention will be described below with reference to the drawings.

First, with reference to FIGS. 4 and 5, the turbine transportation platform according to this embodiment will be described. Figure 4
FIG. 5 is an exploded perspective view of this turbine transportation mount.
FIG. 4 is a perspective view of the turbine transportation mount in an assembled state.

The gantry 20 is provided with a foundation beam having a beam main body 21, two first horizontal beams 22, 22 and two second horizontal beams 23, 23 and having a cross shape in plan view. The first horizontal beams 22, 22 and the second horizontal beams 23, 23 are provided so as to extend outward from the side surfaces of the beam body 21 substantially orthogonal to each other, and the first horizontal beams 22, 22 are mounted objects. The high-pressure turbine portion 5 (FIGS. 1 to 3) extends in the longitudinal direction, and the second transverse beams 23, 23 extend in the short-side direction of the high-pressure turbine portion 5.

On the four side surfaces of the beam body 21, the first horizontal beam 2 is provided.
Four mounting seats 24, 24, 25 for detachably mounting the second and second lateral beams 23, 23 are formed. Four mounting seats 26, 26, 27, 27 are also formed on the first horizontal beams 22, 22 and the second horizontal beams 23, 23 so as to face these four mounting seats 24, 24, 25. These mounting seats 24, 24, 25, 26, 26, 2
A plurality of through holes are formed in each of 7 and 27.
The four mounting seats 26, 26, 27, 27 are brought into contact with these four mounting seats 24, 24, 25, and the bolt 28 is inserted through the through hole and tightened by the nut 29. 22, 22 and the second horizontal beams 23, 23 are detachably attached to the beam body 21.

A support base 30 for mounting the central portion of the high-pressure turbine portion 5 is detachably attached to the beam body 21 with bolts or the like. Further, an adjusting plate 31 for adjusting a clearance between the support 30 and the high-pressure turbine portion 5 which is a mounted object is provided. Only the adjusting plate 31 is different from other components and is a component prepared for each high-pressure turbine.

Further, each of the first horizontal beams 22, 22 and the second horizontal beams 23, 23 is formed to be long in the direction in which these horizontal beams extend, and has a first length through which a first screw shaft 41 and a 242 described later are inserted. Holes 32, 32 and second elongated holes 33, 33 are provided.

Two first transverse beams 22 adjacent to each other,
Four support block bodies 34, 34 ... Are arranged in each space portion formed by the second cross beams 22 and the second cross beams 23, 23. Four support beams 35, 35 ... Are detachably mounted on the support block bodies 34. On each of these support beams 35 ... Further, four mounting parts 36 for supporting each part of the high-pressure turbine part 5 are provided.
36 are detachably provided by bolts 37 and nuts 38.

Further, each of the support block bodies 34 ... Is provided with four elongated holes 39, 39 ... Which extend in the same direction as the first elongated holes 32, 32 of the first transverse beams 22, 22. Four through holes 40, 40 ... Are provided so as to face the second elongated holes 33, 33 of the second horizontal beams 23, 23.

Further, the long holes 39 of the support block 34,
The first elongated hole 32 of the first horizontal beam 22 and the support block body 34
Two elongated screw shafts 41, 41 are provided by sequentially inserting the elongated holes 39 of the above, and the through holes 40 of the support block body 34, the second elongated holes 33 of the second horizontal beam 23, and Two second screw shafts 42, 42, which are elongated and extend by sequentially inserting through holes 40 of the support block 34, are provided. Each of the first and second screw shafts 41, 42 ... Is provided with a plurality of nuts 43, 44.

Next, the operation of the turbine transportation mount 20 thus constructed will be described.

First, each component constituting the turbine transportation mount 20, that is, the beam main body 21, the first horizontal beam 22, the second horizontal beam 2
Since 3, the support block body 34, the support beam 35, the mounting portion 36, and the like are all configured to be detachable, these parts can be disassembled.

Further, the spacing between the support block bodies 34 ... Can be adjusted by the method described below.

That is, as one method, the first screw shaft 41 is attached to the elongated hole 39 of the support block 34 by the nut 43.
When the first screw shaft 41 is moved together with the support block body 34 along the first elongated hole 32 of the first horizontal beam 22 through which the first screw shaft 41 is inserted while being fixed to Horizontal beam 23
The distance between the support block body 34 and the support block body 34 is adjusted, and the support block body 34 can be fixed at any position.

As another method, when the first screw shaft 41 is fixed to the first elongated hole 32 of the first horizontal beam 22, the support block body 34 is fixed to the stationary first screw shaft 41. When the long hole 39 is moved, the distance between the support block body 34 and the second horizontal beam 23 is adjusted, and the support block body 34 can be fixed at any position.

When these two methods are used in combination,
Since the distance between the support block bodies 34 is adjusted by the sum of the first long hole 32 of the first horizontal beam 22 and the long hole 39 of the support block body 34, the adjustment interval becomes very large.

Further, when the distance between the support block bodies 34 is adjusted by these methods, the second screw shaft 42 follows the through hole 4 of the support block body 34 so as to follow this.
The position fixed at 0 must be adjusted. It should be noted that the distance between the beam block 21 and the second horizontal beam 23 of the support block 34 is also adjusted by adjusting the position of the second screw shaft 42 fixed to the through hole 40 of the support block 34 by the nut 44. Can be done.

Further, when the distance between the support block 34 and the first horizontal beam 22 is adjusted, the support block body 34
The adjustment can be performed when the second screw shaft 42 inserted in the through item 40 is moved along the second elongated hole 33 of the second cross beam 23.

As an example, the size adjustment range of the gantry 20 according to this embodiment is about 1 meter both in the direction of the first horizontal beam 22 and in the direction of the second horizontal beam 23, which is suitable for most turbines. The gantry 20 according to this embodiment can be applied.

The gantry 20 thus constructed is assembled in a turbine manufacturing plant or the like, and as shown in FIG.
On the pedestal 20, the outer vehicle lower half 6, the inner vehicle lower half 7, the nozzle lower half 8, the rotor 9, the nozzle upper half 10, the inner vehicle upper half 11, and the outer vehicle upper half 12 are sequentially assembled. The high pressure turbine section 5 is completed. Alternatively, as shown in FIG. 2, the assembled high-pressure turbine portion 5 is mounted on the pedestal 20. As a result, the high-pressure turbine part 5 is transported to the construction site together with the gantry 20.

At the construction site, the high-pressure turbine portion 5 is suspended by the wire 13 and removed from the gantry 20, and the assembled high-pressure turbine portion 5 is installed at a predetermined position.

After use, the gantry 20 is disassembled so as not to be bulky and brought back to a turbine factory or the like. Since the gantry is disassembled in this manner, it has the advantages that the transportation cost is reduced and the storage space is small. Then, in a turbine factory or the like, the gantry is again adjusted to fit a turbine of another size and used for transportation of this turbine. Further, the pedestal 20 according to the present embodiment can be used semipermanently even if the rust prevention coating is applied and the bolts and the like are coated with lubricating oil for maintenance.

Therefore, the gantry 20 is used many times, does not need to be discarded each time it is used, is a heavy weight having high rigidity, and is expensive designed and produced by spending time and effort. The gantry 20 can be efficiently used, and the resources can be effectively used.

Next, as an example of a turbine repairing method using the gantry 20 according to the present embodiment, replacement of the outer casing of the turbine will be described.

At the time of this replacement, as shown in FIG. 1, the lower half 6 of the outer casing and the upper half 12 of the outer casing are replaced. 12, interior compartment 1
1, the nozzle upper half 10, the rotor 9, the nozzle lower half 8, the inner casing lower half 7, and the outer casing lower half 6 are disassembled in this order. But,
The last lower half 6 of the outer vehicle compartment is welded and connected to an external pipe (not shown), and therefore it takes time to disassemble. Therefore, at the same time as the work of removing the lower half 6 of the outer casing, the maintenance of the parts other than the lower upper half 6 and 12 of the outer casing which has been disassembled and returned to the factory for maintenance is completed in the factory, and The lower half 6 and the upper half 12 of the external vehicle compartment, which are new replacements, are mounted on the upper part, and the remaining parts that have been maintained are incorporated into these parts to complete the replacement. After that, as in the case of the transportation of the new plant described above, the high-pressure turbine portion 5 in which the lower half 6 of the outer casing and the upper half 12 of the outer casing are exchanged is transported to the site together with the mount 20, and only the mount 20 is taken home. Be done.

In the above case, the parts for maintenance are brought back to the factory. However, if the local maintenance is sufficient, the turbine is mounted on the pedestal 20 assembled locally. It should be incorporated like.

Further, the present repairing method is most effective in shortening the construction period even in the case of the plant regular inspection work, in the case of new replacement of all the turbine parts described above, that is, complete replacement. This is because, in this case, the new replacement product can be incorporated on the gantry 20 regardless of the steps of disassembling and removing the existing plant.

Next, an example of a method of storing a turbine using the gantry 20 according to this embodiment will be described. In the case of a new plant, the high-pressure turbine part 5 of the steam turbine is installed in the turbine factory from the completion of assembly to the shipment.
As shown in (4), it is stored in the mount 20 for a relatively long period of time. Even in such storage, the spacing between the support block bodies 34 of the gantry 20 is adjusted according to the size of the turbine, so that the gantry 20 does not need to be discarded each time it is stored, and the expensive gantry 20 is not necessary. Can also be used efficiently for storage.

In the case of a new plant, even in the local turbine building, the high-pressure turbine portion 5 of the steam turbine is stored in the pedestal 20 as shown in FIG. 2 until the installation is completed. ing. In this way, the pedestal 20 can be adjusted and used according to the size of the turbine for storage on site, and it is not necessary to dispose of the pedestal 20 each time it is stored locally.

The present invention is not limited to the above-mentioned embodiments, and can be variously modified. In particular, the adjusting device for adjusting the distance between the support block bodies is formed by the long hole and the screw shaft in the embodiment, but is not limited to these.
It may be various. Further, the mounted object is the high-pressure turbine portion in the embodiment, but may be a portion other than this.

[0048]

As described above, according to the present invention, the distance between the support blocks can be adjusted by the adjusting device.
Since the cross beam, support block, etc. are configured to be disassembled, even if the turbine has various sizes,
It can be adjusted according to this. Therefore, the pedestal is used many times and does not need to be discarded after each use as in the past, and it is a heavy and highly rigid object, and was designed and manufactured with time and effort. It is possible to efficiently use an expensive pedestal, and eventually to effectively use resources. In recent years, when turbines are frequently transported and repaired, the labor-saving and resource-saving effects of the present invention are enormous. Further, when the turbine is repaired, for example, when the turbine casing is replaced, it can be used as a pedestal for temporary assembly, so that the plant stop period for replacement can be shortened.

[Brief description of drawings]

FIG. 1 is a frame for transporting a turbine according to an embodiment of the present invention,
FIG. 3 is a perspective view of a high-pressure turbine with the disassembled payload.

FIG. 2 is a perspective view showing a state in which a high-pressure turbine to be mounted is mounted on a turbine transportation stand according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a state in which a high-pressure turbine to be loaded is removed from the turbine transportation mount according to the embodiment of the present invention.

FIG. 4 is an exploded perspective view of a rack for turbine transportation according to an embodiment of the present invention.

FIG. 5 is a perspective view of a turbine transportation mount according to an embodiment of the present invention.

FIG. 6 is a perspective view of a conventional turbine transportation mount and a high-pressure turbine of a disassembled mounted product.

FIG. 7 is a perspective view of a conventional high-pressure turbine mounted on a turbine transportation mount.

FIG. 8 is a perspective view showing a state in which a high-pressure turbine to be mounted is removed from a conventional turbine transportation mount.

[Explanation of symbols]

 5 Loaded object (high-pressure turbine part) 20 Frame 21 Beam body 22 Cross beam (first cross beam) 23 Cross beam (second cross beam) 32 First elongated hole (long hole of horizontal beam) 33 Second long hole (long hole of horizontal beam) 34 Support block 39 Long hole (long hole of support block) 41 First screw shaft (screw shaft) 42 Second screw shaft (screw shaft) 43 Nut 44 Nut

Claims (7)

[Claims] 1. A turbine transportation gantry for mounting and transporting a turbine, which is an object to be loaded, and a beam main body having a support base for the object to be mounted on an upper surface, and an outer side substantially orthogonal to each other from a side surface of the beam main body. And four support blocks that are arranged in respective spaces formed by two horizontal beams that are adjacent to each other and that support a load at their top ends. An adjustment device for adjusting one support block body to the front, rear, left, and right with respect to each horizontal beam to adjust a distance between the support block bodies. 2. The adjusting device according to claim 1, wherein the horizontal beam has an elongated hole formed in an extending direction thereof, a screw shaft extending through the elongated hole and attached to a support block body, and the screw shaft. And a nut for fixing the screw shaft to the lateral beam so as to adjust the distance between the support block bodies by moving in the direction of extension of the elongated hole, and a rack for turbine transportation according to claim 1. . 3. The adjusting device comprises an elongated hole formed in the supporting block body along an extending direction of an adjacent horizontal beam, and a screw shaft extending through the elongated hole and attached to the horizontal beam. The nut for fixing the screw shaft to the lateral beam by moving the screw shaft in the extending direction of the elongated hole to adjust the distance between the support block bodies. Turbine transportation stand. 4. The adjusting device includes a through hole formed in the support block body so as to face the horizontal beam, a screw shaft extending through the through hole and attached to the horizontal beam, and the screw shaft. A nut for fixing the screw shaft to the support block body by moving the shaft in the penetrating direction of the through hole to adjust the distance between the support block bodies.
The turbine transportation mount described in. 5. A turbine transportation method comprising: mounting a turbine on the turbine transportation mount according to any one of claims 1 to 4; and transporting the turbine together with the turbine. 6. A turbine repairing method, characterized in that a turbine is mounted on the turbine transportation stand according to any one of claims 1 to 4, and the turbine is repaired. 7. A turbine storage method comprising storing a turbine by mounting the turbine on the turbine transportation stand according to claim 1.