SU1597437A2 - Method of mounting two-step isothermic tank - Google Patents

Abstract

The invention relates to construction and installation work and can be applied for the installation of insulated tanks. The purpose of the invention is to eliminate the possibility of moisture on the insulating material during the installation of the surface of the insulating base. The task is achieved due to the fact that the housing of the inner tank 4 with the roof is raised to a mark exceeding the design value by 30-100% of the height of the insulating layer 8, and after fixing the position of the inner tank 4 through the openings of the outer and inner tanks the heat insulating material is fed that completely excludes precipitation from it. 7 il.

Description

Fiz.b

The invention relates to the construction, in particular to the installation of tanks, and is an improvement of the method according to the authors. St. No. 876932.

The purpose of the invention is to eliminate the possibility of moisture on the insulating material during the installation period and to provide free access over the entire surface of the insulation base.

FIG. 1-7 depict the steps for installing a two-stage isothermal tank.

A method for mounting a two-stage isothermal tank is as follows.

The outer tank 1 is mounted, after which the installation of the inner tank begins directly on the bottom 2 of the outer tank, before laying the heat insulating base. Initially, the layouts and partial welding of the edges of the bottom 3 of the inner tank 4 are performed, the rest of the bottom is not assembled until the assembly and welding of the inner case 4 and its roof 5 is completed. Assembly and welding of the inner tank body from the enlarged blocks is carried out by a known method. The enlarged blocks are fed through the outer casing, uncovered by the roof. Simultaneously with the installation of the inner tank body, the roof of the inner tank 5 is assembled on the bottom of the inner tank, which is then installed using a pneumatic lifting method (or other method) into the design position and welded to the body. The mounted inner tank 4 is lifted to the design position with the help of the device and fixed. In this position, with the support on temporary supporting structures 6 installed on the roof 5

inner tank, mount the roof 7 outer tank. After finishing its installation and welding, the temporary supporting structures are dismantled. Then

the inner tank with the same lifting device is raised 30-100% higher than the design mark and fixed in this position.

Then through the openings left in the outer and inner tanks, serves

insulating material and laying the insulating base 8. Thus, the installation of the insulating base is made in a closed outer tank, which completely eliminates contact with it

precipitation. After completion of the installation of the heat insulating base, the body of the inner tank is lowered onto it. Then mount the bottom. The bottom sheets are fed through the same openings.

Claims (1)

Invention Formula The method of installation of a two-stage isothermal reservoir according to ed. St. No. 876932 characterized in that, in order to eliminate the possibility of moisture on the insulating material during the installation and providing free access over the entire surface of the insulating base, when assembling the inner shell, in its bottom the opening is left, and the inner shell is raised above the bottom of the outer shell by an amount greater than the heat insulation height by 30-100%, after which the heat insulation is placed through the openings of the outer shell, and then the inner shell is lowered shell, followed by sealing the bottom opening. / n housing blocks 7 / ///////////// l  t Fg / hL 4 housing pr.otm / y. /// ///// l Fng five