JPS6130904A - Method of installing rotor unit in field - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for on-site installation of a rotating body device, and particularly to a method for installing a body of a rotating body device and laying a power supply cable to a motor for driving a rotating machine.

[Technical Background of the Invention and Problems Therewith] FIGS. 1 and 2 are diagrams showing the basic arrangement of equipment in an electric motor plant mainly consisting of rotating body devices A1 to A1.
A8s are installed on the base 1 in a plurality of rows (two rows in the figure). Further, cable trays 2a and 2b are provided on the base 1 on both sides of the plurality of rows of rotating body devices A1-88,
Inside the cable trays 2a and 2b, cables 4 (not shown in the figure) extend between the iii source installed at one end of the row of rotating body devices A1-88 and each terminal block 3 of the rotating body devices 1A1-88. (only one line is shown) has been installed.

On the other hand, in a normal electric motor plant, the rotating body device A1-88
There are few cases in which only one rotor exists, and in many cases, the rotating body devices A1-88 are connected to each other by process piping. That is, as shown in FIG. 2, upper piping 5a, 5b is installed on piping supports 6a, 6b on the upper part of the rotating body apparatuses A1 to A4 or A5 to A8 in parallel with the row, and furthermore, the rotating body apparatus Lower pipes 7a and 7b are arranged at the lower part of one side of each row of devices.

As described above, in an electric motor plant, various types of equipment, process piping, etc. are generally mixed, and in order to reduce the installation area, each of them must be arranged and installed quite densely. Therefore, the workability of the on-site construction work for installing each device is poor, and it is generally difficult to adjust the schedule so that the construction period of each on-site construction work is not complicated.

Therefore, conventionally, when performing on-site construction, first
1-88 was brought in and installed. That is, as shown in FIG. 3, the rotary body devices are placed on the transport trolley 8, and the rotary body devices A1 or A5 on the far side are carried in in order from the direction indicated by the arrow in FIG. and install them in the designated positions one after another. Thereafter, the upper pipes 5a, 5b are attached to the pipe supports 5a, 5b mounted on each rotating body device.

In this case, as described above, the rotating body devices 1A1 to 88
is installed, the upper pipes 5a and 5b are connected to the wheel part 9.
After the tubes a and 9b are carried to an appropriate location by the pipe carrier 9 running on both sides of the rotating body device fAl, etc., they are unloaded from the pipe carrier 9 and mounted on the pipe supports 6a and 6b. The pipe transport cart 9 is also used as a scaffold for the worker 10 during this unloading and installation work.

When the upper pipes 5a and 5b are installed in this way,
Thereafter, a leakage test is performed on the upper pipes 5a and 5b. That is, as shown in FIG. 4, scaffolds 118 and 11b on which the leak test worker 10 stands are erected on both sides of the rotating body apparatus A1, and the worker 10 stands on the scaffolds 11a and 11b and connects the upper pipe 5.
Access a and perform a leak test.

In this way, the transport and installation of the rotating body devices fA1 to fA88,
After carrying in and installing the upper pipes 5a and 5b and completing the leakage test, the lower pipes 7a and 7b are next installed, and then the cable tray 2a is installed.

2b, laying the cable 4, and connecting the cable 4 to the terminal block 3. After completing this series of work,
Leak tests on the lower piping 7a and 7b and electrical tests and inspections on the cable 4 are carried out to complete the entire construction work.

FIG. 5 shows the steps of the above-mentioned series of operations. However, FIG. 5 shows the order of implementation of each work, and the construction period of each work is assumed, and the installation work of the lower pipes 7a and 7b is omitted in FIG.

However, in the above installation method, as is clear from FIG. 5, all the construction work has to be carried out in series, so there are problems such as a long total construction period.

In other words, since the piping supports 6a and 6b are installed on the rotating body devices AI, A2, etc., the “transporting and installing the upper piping” work will be carried out after the “transporting and installing the rotating body device” work is completed. I have no choice but to do it. In addition, a [leakage test for the upper piping] must be conducted before the upper piping is brought in and installed. Furthermore, since the cable trays 2a and 2b are installed in a place where the wheels of the pipe transport truck pass or where the scaffolding on which the worker for the leak test of the upper pipe is mounted is assembled, the above-mentioned leak test of the upper pipe is carried out. The installation of cable trays 2a and 2b and the laying of cables 4 cannot be carried out until the completion of the electrical work, and the electrical work and the subsequent electrical work test must be carried out only after the leakage test of the upper piping is completed. do not have. For this reason, in addition to the work such as transporting and assembling the rotating body equipment, all electrical work etc. will be carried out in series, resulting in a long overall construction period, and there is no scope for schedule adjustment for each work, making the on-site construction schedule extremely difficult. There are problems such as becoming stricter.

[Purpose of the invention]

In view of these points, the present invention provides a method for on-site installation of a rotating body device that shortens the construction period for on-site construction of the rotating body B@, facilitates process adjustment, and reduces construction yellowing. The purpose is to

(Summary of the Invention) The present invention provides a rotating body equipment plant in which a plurality of rotating body devices each having a plurality of rotating machines mounted on a common pedestal are arranged in two parallel rows. Carrying in and installing the equipment or the upper piping of the rotating body equipment is carried out at the same time as the work is being carried out, and the power supply cable to the rotating body equipment is laid in the outside bit of the rotating body equipment group in the other row, or The feature is that a power supply cable is connected to the rotating body device and an electrical work test is performed.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 6 and 7.

FIG. 6 is a diagram showing the equipment arrangement around the rotary body device of a rotary body device plant to which the installation method of the present invention is applied.
2a, 12b are provided, both bits 12a,
Cable laying platforms 13a and 13b are installed in 12b.

These cable laying bases 13a, 13b differ from conventional cable trays in that they do not have side plates and correspond to the bottom plate of the cable tray, and the cable laying bases 13a, 13b and the bits 12a, 12b are similar to each other. A cable 4 is laid in a space surrounded by an inner wall. Also, this bit 12a.

Upper lids 14a and 14b are attached to the upper lid 12b.
Pass the cable 4 through the holes drilled at the appropriate locations in 4a and 14b.
is pulled out onto the floor, and then the rotating body device AI
, A2, . . . are connected to each terminal block 3. Other points are exactly the same as the conventional plant.

However, when carrying in and installing rotating body equipment, etc.,
Electrical work will be carried out in parallel with the delivery and installation of the rotating body equipment. In other words, a row of rotating body devices A1 is carried in on a plywood board.
When installed, the cable-laying platform 13b is installed inside the bit 12b, and the cable-laying platform 13b is installed inside the bit 12b.
Lay the cable 4 on b. Next, when the row of rotary body devices A5 is carried in and installed, the cable laying platform 13a is installed in the bit 12a, and the cable 4 is laid on it. In this way,
[By arranging the objects of "carrying in and installing rotating body equipment 1" and "electrical work" such as cable laying in opposite rows, the above 2.
Construction complications can be completely avoided. Further, in the electrical work at this point, after the cable 4 is laid inside the bit 128, 12b, the upper covers 14a, 14b are attached, thereby securing a scaffold for the subsequent work.

Once the "transportation and installation of the rotating body equipment" and "electrical work" are completed in the manner described above, the next step is to carry out the "transportation and installation of the upper piping" and the "leakage test for the upper piping."

Due to their nature, these two works have to be carried out in series, but unlike the conventional method, the ``'N1 air work'' and the ``electrical work test'' can be carried out at the same time as these two works.

That is, what was left over from the "electrical work" carried out at the same time as the "carrying in and installation of the rotating body device", that is, the work of drawing out the cable 4, the work of connecting it to the terminal block 3, and the electrical work test are performed. The procedure is exactly the same as when carrying in and installing the rotary body device and the electrical work are performed in parallel, and the corresponding work can be carried out in different columns. For example, when the upper pipe 5b is carried in and installed, the cable 4 in the bit 12a is pulled out, the cable 4 is connected to the terminal block 3, and an electrical work test is performed.

By doing this, it is possible to smoothly carry out both the "carrying in and installation of the upper piping", the remaining work of the electrical work, and the "electrical work test" without any complications. Figure 7 shows each of the above construction steps.

In addition, in the above example, the electrical work was carried out in parallel with the delivery and installation of the rotating body device, but
The implementation timing of the above electrical work is not limited to that,
It can also be carried out prior to the delivery and installation of the rotating body device. In other words, the cable laying platforms 13a, 13b are installed in advance.
, lay the cable 4 on top of it, and then attach the top cover 1.
4a.

14b is installed, and then the rotary body devices in the row of rotary body devices A1 are carried in and installed. At this time, since the upper cover 14a is attached to the bit 12a, there is no problem in carrying in and installing the row of rotating body devices A1. Then, the transport and installation of the row of rotating body devices A1 is completed, and the rotating body device fA
At the same time as the carrying-in and installation work for row No. 5 is started, the work of pulling out the cable 4 in the bit 12a that has been laid out in advance and connecting it to the terminal block 3 starts. Following this, an electrical work test will also be conducted. After that, when the rotary body devices in the row of rotary body devices A5 are brought in and installed, the cables are pulled out and connected in the row of rotary body devices A1, and the electrical work test is completed, the next step is to move on to the upper piping of the row of rotary body devices A1. In parallel with the transport and installation work, the remaining electrical work and electrical work tests for the row of rotating body devices A5 will be carried out 1'.

In this way, it is possible to sequentially and simultaneously develop multiple construction projects. Performing electrical work before transporting and installing the rotary body equipment as in this example has the disadvantage that the overall process is longer than in the first example, but it also helps ensure uniform allocation of workers and construction materials. It is possible to level out the so-called on-site construction workload.

〔Effect of the invention〕

As explained above, according to the present invention, electrical work, etc., are carried out on the other row at the same time as the transport and installation of the rotary body devices on one row, so that the overall process of the plant can be significantly shortened. In addition, since electrical work can be carried out in the winter compared to conventional methods, it is possible to level out the workload of on-site construction and increase the range of schedule adjustment for each job, allowing each job to be carried out smoothly throughout the entire process. can be done. moreover,
By eliminating the above-the-floor cable tray, the area can be used as a walking path, allowing for effective use of the site. Access to the lower piping is also easier, which greatly improves the efficiency of equipment testing and maintenance after construction. It has effects such as being able to improve the situation.

[Brief explanation of the drawing]

Fig. 1 is a layout diagram of the rotating body device and peripheral equipment in a conventional plant, Fig. 2 is a view taken in the direction of the arrow in Fig. 1, and Fig. 3 is an explanatory diagram of carrying in the rotating body device and carrying in and installing the upper piping. Fourth
5 is a conventional construction schedule, FIG. 6 is an equipment layout diagram according to the present invention, and FIG. 7 is a construction schedule according to an embodiment of the present invention. AI, A2-A8...Rotating body device, 2a, 2b
-... Cable tray, 3... Terminal block, 4... Cable, 5a, 5b... Upper piping, 6a, 6b... Piping support, 7a, 7b-... Lower piping, Ila, 11
b, Scaffolding, 12a, 12b-=Bit, 13a, 1
3b = cable laying platform, 14a, 14b... upper cover. Applicant's agent Inomata Kiyoshi 1st branch JP) 2 Zusuji 3rd garden 4th - 5th garden

Claims (1)

[Claims] In a rotary body equipment plant where multiple rotary body units are arranged in two rows in parallel, this is the same as carrying in and installing the rotary body unit or the upper piping of the rotary body unit in one row of rotary body units. During this period, the work of laying the power supply cable to the rotary body device in the outside bit of the group of rotary body devices in the other row, the work of connecting the power supply cable to the rotary body device, and the electrical work test are carried out. An on-site installation method for rotating body equipment.