JPH0830752B2 - Turbine foundation form and condenser assembly method - Google Patents

Description

The present invention relates to a method of assembling a turbine base formwork and a condenser.

[Conventional technology]

Conventionally, a condenser of a nuclear power plant is arranged in a space 2a sandwiched between leg walls 2 of a foundation 1 of a turbine generator, as shown in FIG. Further, the turbine generator is installed and arranged on the foundation 1, and further, the condenser is installed and arranged on the foundation 3 driven on the bottom surface of the void 2a sandwiched between the leg walls 2. ing.

In this way, since the condenser of the nuclear power plant is located under the foundation 1 of the turbine generator, the condenser is carried in and installed after the foundation work of the turbine generator is completed. . This will be described in more detail with reference to FIG. 7. In the conventional case, the formwork of the turbine generator foundation, the reinforcing bars, and the concrete placing 4 are completed, and the concrete curing 5 and the formwork support 6 are completed. For the first time, the condenser can be brought in 7. Next, after the condenser centering 8 is completed, the condenser internal assembly 9 and the pipe connection 10 can be started, and the condenser-turbine direct connection is completed.
11 are possible. In FIG. 7, 12 is the condenser site assembly, 13 is the turbine installation, and 14 is the condenser detailed assembly.

[Problems to be Solved by the Invention]

However, in the past, a condenser is a large-scale device that requires a large amount of on-site work, and there are many related works such as connecting the condenser and the turbine, connecting pipes, and heating the condenser. It has become a critical part of power plant construction work. In particular, if construction work that is affected by the weather is delayed, the condenser and related work will be forced to perform day-and-night shifts and other such rush work, which poses a safety problem and has significantly increased costs.

The present invention solves the above-mentioned conventional drawbacks, secures the condenser installation period, shortens the turbine generator foundation work by simplifying it, avoids a rapid increase in the number of workers, and reduces the cost of the turbine base type. To provide a method of assembling the frame and the condenser.

[Means for solving the problem]

In order to achieve the above-mentioned object, the method for assembling a turbine foundation formwork and a condenser according to the present invention is a method for constructing a turbine building mat concrete and a condenser foundation for a nuclear power plant, and then a turbine generator foundation. The condenser assembly temporarily attached with the turbine base form of No. 1 is carried in and installed on the foundation of the condenser, and the turbine base form around each condenser is joined together.

[Action]

As described above, according to the present invention, since the condenser is installed prior to the foundation of the turbine generator, the related work can be advanced at an early stage. Moreover, since the turbine base form is temporarily attached to the condenser and carried in, and the turbine base form is assembled, the foundation of the turbine generator can be easily set and completed in a short period of time.

〔Example〕

The present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 is a schematic perspective view of a condenser installation area and an assembly area. The figure shows mat concrete 20 and condenser foundation 21.
Shows the time when it was completed, and the condenser 22 delivered from the manufacturing factory in any division in the assembly area other than the condenser installation area is assembled locally. In FIG. 1, reference numeral 23 is a carry-in rail and 24 is a rebar.

FIG. 2 shows a state in which the turbine base formwork 25 of the turbine generator base is temporarily attached to the condenser 22 on the carry-in rail 23 assembled in the assembly area. FIG. 3 shows a state in which three condensers 22 to which the turbine base formwork 25 is temporarily attached are drawn in and centered on the condenser base 21 in the installation area.

In FIG. 4, the center of the condenser 22 and the turbine base form 25 are connected to each other by a joint form 26 to assemble the rebar inside. When the three condensers 22 are completely centered,
This also installs the connection base formwork 27 assembled in advance in another place, sets the necessary embedded hardware, and assembles the reinforcing bar inside.
Next, concrete is placed in several layers to complete the foundation of the turbine generator.

FIG. 5 shows the steps of the method of the present invention. When the matte concrete 29 is completed, the condenser site is assembled 28 in the assembly area in advance, the condenser is brought in 30, the centering 31 is performed, the joint formwork assembly 32 and the connection base formwork 33 are assembled, and the reinforced concrete is assembled. Cast 34. Next, after the concrete curing 35, the turbine installation 36 is entered, and the condenser-turbine direct connection 37 is performed. In this way, since the condenser centering 31 ends early, the pipe connection 38 is started early, and the condenser internal assembly 39 also has a sufficient period.

〔The invention's effect〕

As described above, according to the method of the present invention, after the turbine building mat concrete of the nuclear power plant and the foundation of the condenser are completed, the condenser assembly in which the turbine foundation formwork of the foundation of the turbine generator is temporarily attached Was installed on the foundation of the condenser, and the turbine foundation form around each condenser was spliced together, so the condenser can be installed at an early stage, which allows internal assembly and piping connection. This has the effect that related work such as congestion can be advanced early and a sufficient period can be taken. Further, since the basic formwork of the turbine generator can be easily and quickly assembled, it is possible to shorten the process, avoid a sudden increase in the number of workers, and reduce costs. Furthermore, congestion work can be easily avoided, and safe construction can be performed.

[Brief description of drawings]

Figure 1 is a schematic perspective view of the condenser installation area and assembly area,
Fig. 2 is a perspective view of the condenser and turbine base formwork, Fig. 3
The figure shows a perspective view of the assembly of the condenser and turbine base formwork installed on the condenser base, and Fig. 4 connects the middle of the condenser and turbine base formwork with a joint formwork. FIG. 5 is an explanatory view for explaining the steps of the method of the present invention, FIG. 6 is a perspective view of the foundation of the conventional turbine generator and the condenser, and FIG. It is explanatory drawing for demonstrating the process of a method. 20 …… Matt concrete, 21 …… Condenser foundation, 22 …… Condenser, 25 …… Turbine foundation formwork, 26 …… Joint formwork, 27 …… Connection foundation formwork.

Claims (1)

[Claims] Claims: 1. After the foundation of the turbine building mat concrete and the condenser of the nuclear power plant is completed, the condenser assembly temporarily attached with the turbine foundation formwork of the foundation of the turbine generator is replaced with the condenser foundation. A method for assembling a turbine foundation form and a condenser, which is characterized in that the turbine foundation form around each condenser is brought in and installed, and the turbine foundation form around each condenser is joined.