JPH10267208A - Installation method of boiler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a shortening of the term of work and a higher safety by a method wherein a boiler steel frame is built section by section from the bottom to top and a boiler body is assembled being supported by each section with the building of the section. SOLUTION: A block 5 of a boiler body is fabricated on the ground from back stays 3 and a fire furnace wall panel 4 and the like and the building of lower one section of a boiler steel frame. The block 5 is hoisted and carried in by a crane or the like to be fixed through the back stays 3 and a support metal 6. After the completion of the first section, an upper second section of the boiler steel frame is built. After the completion of the building of the second section of the boiler steel frame, the blocks 5 of the boiler body are hoisted sequentially by a crane or the like to be fixed in the second section of the boiler steel frame through the back stays 3 and the support metal 6. Then, the boiler body is suspended in the first and second sections of the boiler steel frame from a major beam 1 through suspension rods 2 to complete the boiler body. Such an installation of the boiler body in the boiler steel frame enables simultaneous working in construction thereby achieving a shortening of the term of work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boiler installation method applied to boiler installation work in a thermal power plant.

[0002]

2. Description of the Related Art FIG. 2 is an explanatory view of a conventional boiler body installation method used for boiler installation work in a thermal power plant. In the figure, the boiler main body is configured to be suspended from the girders 1 at the top of the boiler steel frame via the hanging rods 2.
After the construction of the top of the boiler steel frame, including the above, is completed, the boiler bodies will be installed sequentially from the top. FIG. 2A shows the construction of a boiler steel frame 1 section, FIG. 2B shows the construction of a boiler steel frame 2 section and installation of a girder 1, and FIG. 2 shows the installation of the block 5 of the boiler body assembled on the ground, and FIG. 2D shows the completion of the installation of the boiler body.

[0003]

As described above, in the conventional boiler body installation method, the boiler body is installed in the boiler steel frame in order to sequentially install the boiler body from the top after the construction of the boiler steel frame is completed. When inserting, the boiler steel frame interferes with the boiler main body, and the work of taking in the boiler main body is complicated and requires advanced skills. In addition, a long construction period is required.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for installing a boiler, in which boiler steel frames are successively constructed from below to above, and each time the above-described sections are constructed. A boiler body corresponding to each of the above sections is incorporated into each of the above sections while being supported by each of the above sections. As described above, in the boiler installation method, the boiler main body including the furnace wall panel and the back stay is sequentially taken in at each construction of each section of the boiler steel frame, and is sequentially piled up from below and installed. By stacking and installing the boiler body from bottom to top each time each section of the boiler steel frame is constructed, the boiler body no longer interferes with the boiler steel frame when the boiler body is taken into the boiler steel frame. Can be carried out smoothly by a crane or other lifting machine. Further, by sequentially taking in and installing the boiler main body at each construction of each section of the boiler steel frame, the construction work of the boiler steel frame and the installation work of the boiler main body can be performed at the same time.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view of a method for installing a boiler body according to an embodiment of the present invention. In the figure, the boiler body installation method according to the present embodiment is used for boiler installation work in a thermal power plant, and the reference numeral 1 in the figure is a girder positioned at the top of the boiler steel frame, and 2 is the boiler body Hanging rod from the beam 1
Is a back stay incorporated in the boiler body to support the boiler body, 4 is a furnace wall panel constituting the boiler body, 5 is a boiler body block formed by assembling the back stay 3 and the furnace wall panel 4 on the ground, 6 is It is a support hardware incorporated into the boiler steel frame to fix the block 5 of the boiler body to the boiler steel frame.

Conventionally, the boiler main body is installed while being suspended from the upper part to the lower part in the boiler steel frame. However, as shown in the drawing, the boiler main body is installed by a furnace wall panel 4 of the boiler main body and a back supporting the boiler main body. The stay 3 is previously assembled integrally on the ground to form a block 5, and a support hardware 6 is attached to the boiler steel frame in advance. Then, the blocks 5 of the boiler main body assembled on the ground are sequentially taken in, and are piled up from the lower part to the upper part for installation. That is, FIG.
As shown in (a), the block 5 of the boiler main body is assembled on the ground with the back stay 3 and the furnace wall panel 4 and the like, and after the construction of the lower section of the boiler steel frame is completed as shown in FIG. The block 5 of the main body is suspended in a lower section of the boiler steel frame by a lifting machine such as a crane and fixed via the back stay 3 and the support hardware 6, and as shown in FIG. After the installation of the boiler body corresponding to this section is completed, the upper part of the boiler steel frame 2
After the construction of the knots is completed, as shown in FIG. 4 (d), after the construction of the two knots of the boiler steel frame is completed,
Blocks 5 of the boiler body corresponding to the knots are sequentially suspended by a lifting machine such as a crane and fixed in the two knots of the boiler steel frame via the back stay 3 and the support hardware 6, and as shown in FIG. The boiler main body is suspended from the girders 1 via the suspension rods 2 in the first and second sections of the first embodiment, thereby completing the boiler main body. In the case where the block 5 of the boiler body is fixed in the boiler steel frame, the block 5 of the boiler body is taken into the boiler steel frame, and then incorporated into the support hardware 6 previously attached to the boiler steel frame in advance. The backstay 3 is fixed with bolts.

[0007] By installing the boiler main body in the boiler steel frame in this way, the construction work of the boiler steel frame and the installation work of the boiler main body can be performed at the same time, thereby shortening the construction period. In addition, by installing the boiler body in a manner that the boiler body is piled up from below for each construction of each section of the boiler steel frame, there is little interference with the boiler steel frame when taking in the block 5 of the boiler body into the boiler steel frame. It becomes possible to smoothly take in the boiler body with a lifting machine such as a crane, which eliminates the need for advanced skills.

In the conventional boiler main body installation method, the boiler main body is sequentially installed from the top after the construction of the boiler steel frame is completed. Therefore, when the boiler main body is taken into the boiler steel frame, the boiler steel frame interferes with the boiler main body. In addition, the work of taking in the boiler body is complicated and requires advanced skills.
In addition, a long construction period is required. On the other hand, in this boiler body installation method, the furnace wall panel 4 and the back stay 3 of the boiler body are previously assembled integrally on the ground to form a block, and the boiler body installation work is performed simultaneously with the boiler steel frame construction work. By simultaneously installing the boiler body during the construction of the boiler steel frame, it is possible to reduce the boiler body installation work period. In addition, when installing the boiler body, the work of taking in the boiler body into the boiler steel frame is a system that is piled up from the bottom every time each section of the boiler steel frame is constructed, which improves workability compared to the conventional suspension system. This can shorten the construction period and improve safety.

[0009]

The method of installing a boiler according to the present invention is as described above. The boiler main body is sequentially piled up from the lower side to the upper side for each construction of each section of the boiler steel frame. The boiler body does not interfere with the boiler steel frame when it is taken into the steel frame, and the work of taking in the boiler body can be performed smoothly by a crane or other lifting machine. It does not require advanced skills and improves safety. In addition, since the boiler body is taken in and installed sequentially for each section of the boiler steel frame, the construction of the boiler steel frame and the installation of the boiler body can be performed at the same time, shortening the construction period. You.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a boiler main body installation method according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a conventional boiler main body installation method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Giant beam 2 Hanging rod 3 Backstay 4 Furnace wall panel 5 Boiler body block 6 Support hardware

Claims (1)

[Claims] 1. A boiler steel frame is sequentially constructed from bottom to top by each node, and each time each of the nodes is constructed, a boiler body corresponding to each of the nodes is provided in each of the nodes by the respective nodes. A boiler installation method characterized by being incorporated while supporting.