JPS58173383A - Method and construction for overhaul, transportation and assembling of condenser - Google Patents

Abstract

PURPOSE:To facilitate the transportation and assembling by a structure wherein assembling surface plates, which are formed in corresponding to the divided forms of the condenser, are fixed on the bottom of the condenser and at the same time rolling members for transfer are mounted to the assembling surface plates. CONSTITUTION:Surface plates 3 are respectively formed in the form of a frame by combining two longitudinal members 3a and five transverse members 3b. Five connecting members 3c are detachably laid between said surface plates 3. A large number of the rolling members 4 are mounted on the under surfaces of the longitudinal members 3a at fixed intervals. The shell main body of a condenser is assembled on the assembling surface plates 3 in a longitudinally divided form. After that, tube nests 9 are composed of by inserting fine tubes 8 in tube supporting plates 7 in order to assemble two long blocks 1 and 2. After assembling the two blocks 1 and 2, the connecting members 3c of the surface plates are removed and the two assembling surface plates 3 are separated from each other. Consequently, the long block 1 and the long block 2 are in the state to be carried separately. Because the rolling members 4 are mounted on the under surfaces of the surface plates 3, the long blocks 1 and 2 can be easily transferred.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for separately transporting and assembling a large-scale condensate II for steam IK excitation installed in a power generating leg, a method for transporting and assembling a large-scale condensate II installed in a power generation leg, a method for transporting a large-scale condensate II installed in a power generation leg, a method for assembling a large-scale condensate II, and a method for carrying out the above method. Concerning the structure of condensate.

The main condenser is about 20 m long, about 1 otn high, and about 1 otn high.
! Since it weighs approximately 1,000 kg, it would be difficult to transport it on general roads unless it is disassembled and transported from the construction site to the installation site trench.

Juqin-IRK The construction methods used for divided transportation are roughly divided into the panel method, the block method 4, and the long plotter f.
There is *.

In the panel construction method, the plates, pipes, steel sheets, etc. for the condenser structure are processed into the required shapes at the manufacturing factory, and then transported to the plate, pipe, and shaped steel materials and assembled on-site**. This is the Sui construction method, but it has the disadvantage that it requires a large amount of man-hours for evacuation work on-site, and the period for on-site upright installation is long.

The condensate St- is divided into several blocks at the manufacturing factory, and then transported to the site and assembled using the construction method, but the condensate IIt is divided into several blocks in the manufacturing factory. Since the blocks are divided into blocks in the height direction and shaped into round shapes, special techniques of the highest level are required for on-site assembly work. On top of that.

Since the top of a large block is raised upwards within a manufacturing factory, there is a problem in that it prevents effective use of the area within the factory building and increases traffic within the factory.

In the long block construction method, the condensate is moved far in the direction of -U.
At the same time, divide this into a vertical I419 shape. For this reason, it has the advantage of shortening the construction period because it does not require special technology to assemble on-site, but since one long plotter-shaped condenser is assembled in the manufacturing factory, the factory-Zenai automatic It has the same problems as the block construction method in terms of effective use of floor space and hindering traffic within the factory. Furthermore, since long blocks are assembled and transported, special consideration and skill are required for loading onto a transport vehicle, unloading from the transport vehicle, and transporting the blocks to the installation site. In other words, since a long block is transported with a raised fist, it may be placed on a rigid and extremely hot pallet-like member, or careless handling of the cargo may occur without taking precautions such as providing a lifting fulcrum for a large object. , there is a risk that excessive bending stress tA will be generated in the condenser assembled into a long block shape.

The present invention has been made in view of the circumstances described in Section 4. When a large condenser is transported and assembled in parts using the long block construction method, there is no need to make effective use of the area within the factory building, and there is no risk of interfering with traffic within the factory. However, there is no risk of excessive bending stress occurring during transport of the condenser in a divided state, and it can be safely and easily loaded onto a transport vehicle and installed. It is an object of the present invention to provide a method for transporting and assembling a condenser in parts that can be transported to a warehouse, and a condenser structure suitable for carrying out the above method.

In order to achieve the above objective t-, the method according to the present invention includes forming a condenser assembly surface plate according to the divided shape of the condenser, and applying a load of this assembly surface plate to the assembly surface plate. [Place the next rolling member to be supported and transferred, and assemble the condenser in a divided shape above it while moving the foot plate mentioned above, and then assemble the condenser in the divided shape. The product is pushed up together with the surface plate, loaded onto a transportation vehicle using the above-mentioned transfer means, unloaded near the condenser installation location, and then moved to the installation location using the above-mentioned transfer means. do.

In addition, in order to safely and easily carry out the above-mentioned method and to fully exhibit the effects described in item 7, the device of the present invention also uses an assembly surface plate formed to match the divided shape of the condenser to the body of the condenser. It is characterized in that it is fixed to the lower surface of the assembly plate, and a rolling member for transfer is attached to the above-mentioned assembly surface plate.

When the condensate is divided into the upper shell, the connecting shell, the shell body, the condensate reservoir, etc., the shell body is the largest in terms of weight and dimension and is difficult to transport. Figure #g1 shows two long blocks obtained by dividing the above-mentioned trunk main body into vertical planes in a vertical plane, and Fig. 2 shows the above-mentioned two long blocks combined in an installed state.

For convenience of explanation, the two divided condensate body bodies t are named long blocks 11 and 2, respectively.

O surface plate 3 for assembling to the above long proref 1.2
is shown by an imaginary line 3 in Fig. 1, and Fig. 3 is a perspective view of an embodiment of the above-mentioned surface plate 3.

Two surface plates 3 are formed in order to place and assemble the opening/groove blocks 1 and 2t, respectively. The two surface plates 3 shown in FIG. 3 are drawn with solid lines at relative positions in the long block 1 and the assembled state 11 as shown in the ZTGS diagram.

Each constant 1113 has two vertical members 3a and five horizontal members 3
Combine b and t to form a frame. Then, the two surface plates 3t are arranged in a predetermined manner, and connecting members 3C1-5 are originally passed between them, and I6 is detachably attached.

A large number of rolling members 4tJliE are mounted at regular intervals on the downward side of the vertical member 3m of the above-mentioned surface plate. FIG. 3 shows the mounting position with imaginary lines, and FIG. 4 shows a partially cutaway perspective view. The rolling member in this embodiment has 15 rollers 4b housed in a retainer 4m as shown in FIG. Fix it to the bottom side of.

Figure 115 shows an example of a work process for assembling a condenser in a divided state.

Select a horizontal ground that is as firm as possible and set up the work area 5' for assembly line work.The figure shows the work 8! 9 shows the preparation stage, and (6) shows the middle stage of assembly. 50 shows the completion stage (however, it means completion as a long block).

Place two assembly plates 3 as shown in this figure (A)K, and
Attach and temporarily connect 3 ct of connecting material.

The body of the condenser is assembled vertically on the assembly plate 3 and above.

The assembly is not only done by placing it on the surface plate 3, but also by permanently attaching it to the K11i1 by welding, bolts and nuts, etc.

As the assembly of the long block progresses, the surface plate 3 is sequentially transferred to the right in the drawing. At this time, the surface plate 3 can be transferred by the rolling member 4 shown in FIG. 4.

This figure (2) shows a state in which the side plate 60 of the trunk body has been assembled and the tube support plate 7t is suspended and fixed therein (Q is a figure with the thin tube 8 inserted into the tube support plate 7 mentioned above). Tube nest 9t-
Indicates the configured state. 2'JA's mouth in this workshop/
After assembling block 1.2, connect the surface plate with 3ct
11,111 is removed, and the two assembly plates 3 are cut 11111. As a result, the long block 1 and the plate 3 are in a state where they can be transported separately.

After performing K as described above and assembling the long block in a fixed state on the surface plate 3, it is moved further to the right from the Q position and placed on the lift device.

Figure 6 shows the long block 1 which has been transferred onto the lift device 10 as described above, with the surface plate 3 for assembly fixed on it and pushed up together to the nine trenches.

After pushing it up in this way, as shown in FIG. It is transferred onto the loading platform of the transportation vehicle 11.

In this case as well, since the 11iK rolling member is attached to the bottom of the surface plate 3, it can be easily loaded. FIG. 0 shows a state in which the long blocks lt have been loaded onto the loading platform of the transportation vehicle 11. Loading of the long blocks 8 is also carried out in the same manner as described above.

FIG. 7 shows a work site where a condenser is installed, where 12 is a building, 13 is a turbine frame, and 14 is a building foundation. E, shown by a virtual line, is the temporary location of the long block outside JIIiWi, and 9H, shown by a virtual line, is the installation position of the condenser.

A retractable pedestal 151 is temporarily installed on the building foundation 14, and the long block 1 is hoisted down to a lower position on the retractable pedestal 15 together with the WI 113 for assembly by a crane device 16 (only the hanging tool is shown).

At this time, a large rigid surface plate 3 is installed on the bottom surface of the long block 1.
Since it is fixed, there is no risk of applying excessive bending stress to the long block IK even if special consideration is not given to slinging. Therefore, crane work at the installation site can be carried out safely and efficiently.

The long block 1 is carried in from position F on the pull-in frame 15 as indicated by arrow G to the condenser installation position H1.

At this time, the surface plate 3 is fixed to the bottom surface of the long block 1.
There is no risk of generating excessive bending stress. Moreover, since this carrying-in work can be carried out using a rolling member attached to the surface plate 3, carrying-in can be carried out quickly and easily.

In the above manner, the two port/gate blocks 1.2 were carried to the condenser installation position HK, and the previously described connecting material 3c (not shown) was attached to the 2m surface plate 3°. When tightened, both surface plates are aligned in the correct relative position, so that the two long blocks 1.degree. 2 abut each other in the correct posture.

Ninth, the IW assembly of the condenser can be easily and inexpensively assembled on-site with high efficiency. The 'IIL board 3, which was used for transport, was attached to the condenser and buried in a trench.

As explained above, the condenser is divided into two parts according to the present invention.
The assembly method involves forming a condenser assembly surface plate pipe according to the divided shape of the condenser, and incorporating a rolling member for transfer on the bottom surface of this assembly surface plate, and then transporting the above surface plate to the assembly factory. Assemble the condensate into a divided shape above it while moving it inside 5
Push up the assembled nine-part condenser together with the assembly plate.

After loading onto a transport vehicle using the above-mentioned transport means and unloading it near the condenser installation location,
When transporting and assembling large condensers in parts using the long block construction method, there is no risk of effectively utilizing the factory building area or interfering with traffic within the factory. There is no risk of excessive bending stress being generated during transportation of the divided condenser, and the condenser can be safely and safely loaded onto a transport vehicle and transported to an installation shop. Furthermore, the method of the present invention described above can be applied to
A similar effect can be obtained by applying this method to the divisional transportation and assembly of large condensers.

The structure for transporting and assembling a condenser in parts according to the present invention is such that an assembly surface plate formed according to the divided shape of the condenser is fixed to the lower surface of the body of the condenser, and By installing a rolling member for transfer on the surface plate, the method of the present invention described above can be carried out conveniently and effectively, and its effects can be fully exhibited.

A simple A5 drawing? , Fig. 1 is a perspective view of the condenser body divided vertically along the folding plane, and Fig. 2 is a perspective view of the condenser body divided as described above and assembled with each other. FIG. 3 is a perspective view of an assembly surface plate according to an embodiment of the present invention, FIG. 4 is an enlarged perspective view of a rolling member attached to the surface plate, and FIG. ...Long block, 3...Surface plate for assembly, 31...Same vertical member, 3b...Same horizontal member, 3c
...The same connecting member, 4...The rolling member, 4m...The same retainer, 4b...The same roller, 10...The lift device, lO
a~lOd...Lift cylinder, 11...Transportation vehicle, 12...Building, 14...-Foundation, 15...
・Retractable frame, 16... Crane device.

Agent: Patent Attorney Masami Akimoto 1st mouth $Z area zu

Claims (1)

[Scope of Claims] 1. Condensate 110!1 is formed vertically according to the divided shape of the condenser, and transferred while supporting the load of the assembly surface plate to #assembly amount determination IIi. Incorporate Tame O rolling II#, and while moving the above surface plate, condensate atq is placed above it.
Assemble the assembled small frame into a split shape and push aside the 111 m-shaped O condensate at assembly plate and load it onto a transportation vehicle using the above-mentioned transportation means. Near the condenser installation location, there is a round iron unloading machine, and a hammer-o-fed carrier!
A method for transporting and assembling a condenser in parts by moving it to the installation location using the R-company and removing 10 molds. 2.Fix a 9-assembly surface plate formed to match the divided shape of the condenser to the bottom of the condenser body, and incorporate a rounded 0fill member that supports and transfers the load of this surface plate into the axillary surface plate. DAKOTO [Characteristic structure for dividing, avoiding and assembling condensers.