JPS59170366A - Assembling of accessories in tank - 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 The present invention relates to a method for safely and quickly assembling in-tank accessories such as pump barrels or lead pipes or internal stairs of pump barrels mD.

For example, when installing and assembling accessories such as a pump barrel, a lead pipe, or an internal staircase around the pump barrel in a large low-temperature tank that stores LNG, LPG, etc., conventionally, the entire scaffolding was first erected inside the tank. Afterwards, each accessory was installed and assembled, and after the work was completed, the entire scaffolding was dismantled.

However, in the above-mentioned work method, the assembly of the entire scaffold,
Dismantling took time and the construction period was long, and the work on the scaffolding, as well as the assembly and dismantling of the scaffolding, was dangerous and unsafe work.

In view of the above-mentioned aspects, the present invention eliminates the need for total scaffolding.

The purpose of this invention is to provide a method that allows for safe assembly of tank accessories in a short period of time.

Embodiments of the present invention will be described below with reference to the drawings.

In Figure 1, (1) is a tank, (2) is a roof, (3) is a hanging deck, and (4) is a hanging piece fixed to the steel frame of the roof (2).

During the work, a plurality of pump barrels (5) and lead pipes (6), which are prepared in advance to a predetermined length outside the tank (1), are moved to a crane outside the tank (1) in the evening, for example. 1
Hang the books one by one and carry them into the link (1) through the opening in the roof (2), and place them on the bottom plate of the tank (1).
7), and then attach the pump barrel (5) to the hanging deck (3).
) and directly above the support stand (7) as shown in Figures 2 and 3, fix the horizontal members (8) and (9),
After determining the mutual spacing between the pump barrels (5) and adjusting the height, the pump barrels (5) are fixed to the roof (2).

A plurality of sky gondolas αO are sequentially suspended by the crane and carried into the tank (1) through the upper opening of the roof (2), and the wire rope can be wound up and let out by a winch mounted on the sky gondola 00. O.D.
One end of the gondola α0 is fixed to the hanging piece (4), so that the gondola α0 can be raised and lowered along the pump barrel (5) by the winch of the sky gondola 00. sky gondola 0
0 is arranged as shown in FIG. 4, for example, in a plan view.

Once the Sky Gondola (10) has been installed in the tank (1) so that it can be raised and lowered, the horizontal material @ is loaded onto the Sky Gondola 01, and a worker gets on the Sky Gondola 0I, raises and lowers the Sky Gondola 00, and lifts the horizontal material into the sky. Manually attach it to each Bonpuno (rel (5)) using the gondola α0 as a scaffold (
(See Figure 3). Horizontal members @ are normally installed from the bottom to the top. Also, depending on the weight of the horizontal material @, the horizontal material (2) may not be mounted on the sky gondola αO, but lifted onto the sky gondola OQ, which is stopped at a predetermined position, using another winch (not shown) installed on the tank bottom plate. You can do it like this.

On the other hand, in the case of this embodiment, the lead pipe (6) is located in the middle of the triangular area formed by the pump barrel (5), so the support of the lead pipe (6) to the pump barrel (5) is 0. Installation of 0IO (see Figure 5) and intermediate support αO (see Figure 6) cannot be performed from Sky Gondola (10). As shown in the figure, the scaffolding pipe α is suspended from the horizontal member (a) etc. via the chain surface of the hanging scaffold, and the scaffolding plate α is attached so that the lead pipe (6) is surrounded by the scaffolding pipe α′i). Either pass and secure the lead pipe (6) directly on top of the horizontal material @, etc., or directly pass and fix a scaffold board to surround the lead pipe (6), etc., and use these scaffolds to support QIQ41 and intermediate support OQ. etc. will be installed.

The diagonal member 09 fixed between the horizontal members of the pump barrel (5) is installed by lowering the sky gondola αO and sequentially downward from the top.

As shown in Fig. 8, the internal staircase (E), which is arranged in a spiral around the pump barrel (5), is first constructed by suspending the platform Q℃ from a winch installed on the bottom plate of the tank. After installing multiple platforms 21 (starting from step 10) as shown in Figure 9, suspend the stairs (A) from the winch, place the upper and lower ends of the stairs (A) on the platform Qη, and begin work. A person gets on the platform and fixes the stairs (A) to platform QD. The installation of internal stairs is usually carried out from the top to the bottom.

Other accessories are also installed on the sky gondola or scaffolding, as appropriate. When the prescribed installation work is completed, it is easily and quickly dismantled by the sky gondola αQ, and the support stand (7) is also removed at a prescribed stage of the work.

Note that the present invention is applicable not only to low-temperature tanks such as LNG and LPG, but also to various types of tanks.In addition to the ones in this embodiment, the present invention includes various supports such as a liquid level gauge nozzle support, and liquid level gauge nozzle supports. It goes without saying that the present invention can be used for installing various types of equipment such as meters, and that various modifications can be made without departing from the gist of the present invention.

According to the method for assembling in-tank accessories of the present invention, various accessories can be attached using sky gondolas and scaffolding, and no scaffolding is required, making it possible to work quickly and without danger. Therefore, various excellent effects can be achieved, such as improving safety and shortening the construction period.

[Brief explanation of the drawings] Fig. 1 is an explanatory diagram of the method of assembling the tank internal accessories of the present invention;
Figure 2 is an explanatory diagram of installing a pump barrel in the method of assembling internal tank accessories of the present invention, Figure 3 is an explanatory diagram of installing a horizontal member to the same pump barrel, and Figure 4 is an explanatory diagram of the same sky gondola. An explanatory diagram showing the arrangement state, Fig. 5 is an explanatory diagram when the lead pipe is supported by the pump barrel, Fig. 6 is an explanatory diagram when the intermediate support of the lead pipe is attached to the horizontal member of the pump barrel, and Fig. 7 is an explanatory diagram when the lead pipe is supported by the pump barrel. The figure is an explanatory diagram of a suspended scaffold for attaching the intermediate support, FIG. 8 is an explanatory diagram of the case where a platform of the internal staircase is attached, and FIG. 9 is an explanatory diagram of the case where the same staircase is attached. In the diagram, (1) is the tank, (2) is the roof, (3) is the hanging deck, (5) is the pump barrel, (6) is the lead pipe, (8)
(9) is a support material, 01 is a sky gondola, @ is a horizontal material, α [Yes] 04) is a support, 0Q is an intermediate support, α
0 is chain, α force is scaffolding pipe, θs'u scaffolding board, 0
9 indicates diagonals, and kanji indicates internal stairs.

Claims (1)

[Claims] 1) A worker rides on a sky gondola that is movable inside the tank and installs the tank accessories, and a worker rides on the sky gondola and installs the tank accessories separately from the assembled scaffolding. A method for assembling in-tank accessories characterized by attaching the in-tank accessories.