FR2550960A1 - Stepped tubular component has enamel lining on lodges - Google Patents

Abstract

Chemical and/or physical processes in or involving fluid media are performed in a generally tubular vertical container made of sheet steel and internally coated with enamel. Down the length of the container are one or more internal ledges, covered by the enamel, and providing a seating for a loose insert such as a perforated plate, overflow plate or bubble lining. At each successive ledge the contaner is reduced in dia.. A seal may separate each ledge from its supported insert.

Description

 The invention relates, from the point of view of type, to a device (or expressed in another way, an apparatus) for carrying out chemical and / or physical processes in or using fluid-shaped media , of the type comprising a vertical sheet metal container and at least one insert constituted in the form of a perforated plate, of an overflow plate, of a bell-plate or the like, the container comprising an envelope provided with an enamelled coating on its inner face, while the insert is supported on this coating.

 In known devices (in practice) of the type described, the insert is installed on a linkage or on a structure which constitutes the support of this insert. This is necessary since, due to the presence of the enamel coating, the container cannot be provided with support claws or the like. The installation of such a linkage and the insert support system are complex. This is particularly the case when it is necessary to provide a multiplicity of overlapping inserts at a distance from each other.

 The object of the present invention is to develop a device of the type indicated above so that no particular linkage or structure intended to support the inserts is no longer necessary.

 This problem is solved in accordance with the invention thanks to the fact that the envelope of the container has at least one re-entrant shoulder, over which the enamel coating extends, and that the insert is placed on this re-entrant shoulder.

 According to a preferred embodiment of the invention, the container has a multiplicity of re-entrant shoulders which have diameters which decrease from the upper part to the lower part of the container and which are joined by sections of the envelope of the container having reduced diameters, and that inserts having different diameters are supported on these shoulders. Sealing devices are arranged on the shoulders and below the inserts.

It goes without saying that for the configuration of the shoulders, it is necessary to choose radii of curvature such that an enamel coating can be applied without difficulty, satisfying all the requirements, using the usual means of the enameling technique. ~
The advantages obtained must be seen in the fact that, in the case of the device according to the invention, no particular linkage or any similar arrangement for supporting the inserts is no longer necessary.

But this also facilitates the mounting of the inserts and their possibility of replacement. The re-entrant shoulders or collars also contribute to increasing the maintenance of the shape of the assembly and its stability.

Other characteristics and advantages will emerge from the description given below taken with reference to the appended drawings, in which
- Figure 1 shows a vertical section of a device according to the invention; and
- Figure 2 shows section A on a larger scale of the object of Figure 1.

 The device shown in the figures is used for the implementation of chemical and / or physical processes in or using media consisting of fluids.

 The device comprises a vertical container 1 made of sheet metal, which comprises at least one insert 2 produced in the form of a perforated plate, a overflow plate, a dish with a bell or the like. The container 1 comprises an envelope or wall 3 having an enamel coating 4 on its inner face. Insert 2 is installed on a support. To this end, the envelope of the container has, in the embodiment, a multiplicity of re-entrant shoulders or collars 5, over which the enamel coating 4 extends. The insert 2 is placed on a re-entering shoulder 5.

The arrangement is made in such a way that the shoulders 5 have diameters which decrease from the top to the bottom and are joined by sections or elements of the envelope of the container having a reduced diameter. Inserts 2 P2s $ 6 with different diameters are installed on these shoulders 5. Sealing devices 6 can be placed on said shoulders 5 and below the inserts 2.

Claims (3)

 1. Device for carrying out physical and / or physical processes in or using media in the form of fluids, of the type comprising a vertical sheet metal container and at least one insert constituted in the form of a perforated plate, of an overflow plate, of a bell-shaped tray or the like, the container comprising an envelope provided with an enamelled coating on its inner face, while the insert is in abutment on this coating, characterized by the fact that the envelope (3) of the container has at least one re-entering shoulder (5), on which the enamel coating (4) extends, and that the insert (2) is placed on this re-entering shoulder (5).  2. Device according to claim 1, characterized in that the container (1) comprises a multiplicity of re-entrant shoulders (5) which have diameters decreasing from the upper part to the lower part of the container and which are combined by sections of the envelope of the container having reduced diameters, and that inserts (2) having different diameters are supported on these shoulders (5).  3. Device according to one of claims 1 or 2, characterized in that sealing devices (6) are arranged on the shoulders (5) and below the inserts (2).