EP1050487B1 - Storage container - Google Patents

Abstract

The heating or cooling storage silo has a semi-cicular pipe coil (3) on its inner or outer side wall surface to receive a temperature medium fluid flow. A spacer (4) between the container wall and the pipe coil and connected to them respectively at i ends. The spacer can be a profile rail.

Description

The invention relates to a container for the preparation and / or storage of substances according to the preamble of claim 1.

Such a container can be, for example, a reactor, silo, stirred or other container his. Certain substances are produced, stored or first in the container processed and then stored. It is used for heating or Cooling of the substances a heating or cooling medium between half-pipe coils and container wall passed through, the half-pipe coils inside or outside on the container wall are misplaced. In containers known from practice, the half-pipe coils are arranged so that they face the container wall with their concave side and are directly attached there. The attachment is mainly by means of Welding.

In a container known from practice, the half-pipe coils are in one certain distance from each other attached to the container wall, this distance due to the space requirement of a corresponding welding torch or due to the necessary accessibility to the weld seam. The corresponding one is Area of the container wall between the adjacent half-pipe coils for one Tempering of the substance contained in the container unused, so that for the Overall container has a relatively large area, which allows for a corresponding heat transfer cannot be used.

A solution is already known from practice in which adjacent half-pipe coils are arranged so close to each other that they are shared by means of a common Weld seam to each other and to the container wall. With this An exemplary embodiment is not a qualitatively perfect execution of the weld seam or very difficult. In particular, a perfect weld is the so-called root position (first weld position) is not guaranteed, which leads to a tube-side gap and together with the tempered medium in the tube to crevice corrosion can lead.

A generic container is known from DE-C-804 008.

With regard to the prior art known from practice, the subject of the application lies the task based on a container of the type mentioned to improve in that at the same time maximum utilization of the area the container wall for heat transfer a corresponding attachment of the half-pipe coils is possible in a simple and safe manner.

This object is solved by the features of claim 1.

As a result, the spacer element can first be fastened to the inside or outside of the container wall and then at the distant end of the spacer appropriate half-pipe coil are attached. Due to the use of the spacer the half-pipe coils are attached at a distance from the tank wall, which gives more space to attach. It should also be noted that For example, when welding, a lower heat input into the Container wall with the advantage of lower residual stresses by shrinking the Weld results. This is particularly important with an outer wall of the container made of plated sheet metal. This also results in better suitability for load changes.

The better accessibility of the fastening points between the spacer and Container wall and between half pipe coil and spacer also allows a cheaper repair option in the event of any mounting errors.

Since the half-pipe coil is no longer attached directly to the container wall, the result is there is also greater freedom in the choice of the base material of the container wall. This can deviate from the material of the half-pipe coil without the danger the material mixing on the outside (only relevant for inner tube coil) occurs. The advantages of the spacer are particularly noticeable because at the end of the spacer element remote from the container, two adjacent half-pipe coils are attached with their leg ends facing the container wall. To this The half-pipe coils can be arranged relatively close to one another and at the same time the attachment points are easily accessible.

The spacer can be in the form of the profile strip corresponding to the half-pipe coil ring-shaped or helical, i.e. with or without increasing the half-pipe coil, along the tank wall - inside or outside. It should be noted that the subject of the application "ring-shaped" is a sub-case too "helical" should, so that only the last term is used in the following. Different cross sections for the profile bar are possible.

A profile bar that is simple to manufacture and easy to lay can, for example have a square or rectangular cross section. A square respectively In this case, the rectangle side is attached to the container and the opposite one The ends of the legs become square or rectangular the half-pipe coils attached.

Another profile strip can have an essentially U-shaped cross section. For example, the U-base can rest on the container wall and the U-legs point away from this and with these are leg ends of the half-pipe coil attached. However, there is also a reverse arrangement of the U-shaped Cross-section possible.

In a further embodiment, the profile strip can be essentially V-shaped Have cross-section, with a V-tip of the container wall and the V-legs are assigned to the leg ends of the half-pipe coil.

A still further shape for a cross-section of a profile strip is rhombus-shaped, whereby the shorter or longer of the parallel sides of the rhombus associated with the container wall can be.

The closest possible arrangement of the adjacent half-pipe coils is realized that the leg ends are spaced apart from two adjacent half-pipe coils are attached to each other at the end of the spacer element remote from the container. To this There are no space problems when attaching both spacer on the container as well as on the half-pipe coils on the spacer element. Will continue by jointly fixing mutually facing leg ends Half pipe coils on a spacer the distance between the half pipe coils minimized.

For example, the spacer is attached to the container wall and / or of the half-pipe coil on the spacer element by welding, so is perfect root detection possible and therefore no gap to the heating / cooling medium towards or to the feel of the container. The latter is special relevant for inner tube coils.

To ensure that the parts to be welded are securely fastened by welding achieve, it can also be considered advantageous if between the spacer and tank wall and leg ends of the half-pipe coils welding grooves are trained. This does not result in excessively protruding during welding Beads, but mainly the corresponding welding grooves filled with material during welding.

Due to the spaced arrangement of the half-pipe coils relative to the container wall by means of the spacer elements, a half-pipe coil can have a central angle of ≤180 °, preferably in the range from 130 ° to 170 °. By this lesser Cross section of the half pipe coil are when bending the half pipe to the container diameter smaller diameters possible with the same degree of forming.

It should also be noted that in the subject of the invention with Spacer between the container wall and half pipe coil for attaching the Half pipe an exactly constant division of the spiral is possible, with the spacer is attached to the container wall accordingly.

In the following, advantageous embodiments of the invention are based on the in the Drawing attached figures explained in more detail.

Figur 1

eine Seitenansicht eines Behälters;

Figur 2

einen Schnitt entlang der Linie II-II aus Figur 1;

Figur 3

einen Schnitt analog zu Figur 2;

Figur 4

einen Schnitt analog zu Figur 2 für ein erstes Ausführungsbeispiel der Erfindung;

Figur 5

einen Schnitt analog zu Figur 2 für ein zweites Ausführungsbeispiel der Erfindung;

Figur 6

einen Schnitt analog zu Figur 2 für ein drittes Ausführungsbeispiel der Erfindung;

Figur 7

einen Schnitt analog zu Figur 2 für ein viertes Ausführungsbeispiel der Erfindung, und

Figur 8

einen Schnitt analog zu Figur 2 für ein fünftes Ausführungsbeispiel der Erfindung.

Show it:

Figure 1

a side view of a container;

Figure 2

a section along the line II-II of Figure 1;

Figure 3

a section analogous to Figure 2;

Figure 4

a section analogous to Figure 2 for a first embodiment of the invention;

Figure 5

a section analogous to Figure 2 for a second embodiment of the invention;

Figure 6

a section analogous to Figure 2 for a third embodiment of the invention;

Figure 7

a section analogous to Figure 2 for a fourth embodiment of the invention, and

Figure 8

a section analogous to Figure 2 for a fifth embodiment of the invention.

Figure 1 shows in principle a container 1, such as a silo, one Stirred tank or the like. On the container wall 2 is a helical outside Half-pipe coil 3 attached, which extends several times around the container. In the Half pipe coil is a cooling or heating medium.

FIG. 2 shows a section along the line II-II for a known half-pipe coil 3. This is essentially made up of semicircular half-tubes with their leg ends 7 are attached to the container wall 2 via welds 10. The tempered medium flows between the container wall 2 and the half-pipe coils 3.

In the exemplary embodiment according to FIG. 2, the adjacent half-pipe coils are spaced apart.

FIG. 3 corresponds to a section analogous to FIG. 2 for a likewise known arrangement of half-pipe coils 3 closely adjacent to each other. In this case they are mutually facing leg ends 7 of adjacent half-tubes almost in contact a weld seam 10 is formed with one another and between them and the container wall 2. With this arrangement, the root canal welding is carried out in a qualitatively perfect manner problematic.

In the following Figures 4 to 8 are different embodiments of an inventive Arrangement of half-pipe coils shown, each with a Spacer 4 in the form of a profile strip between the container wall 2 and the respective one Half-pipe coil 3 is arranged. The same parts are identified by the same reference numerals characterized.

FIG. 4 shows spacer elements 4 of approximately U shape with a relatively thick U base and in the direction of leg ends 7 from the base projecting U-legs. Between Corresponding weld seams are attached to these and the leg ends.

Further welds 10 are between the container wall 2 and a container side End 5 of the spacer 4 arranged laterally to this. On the opposite End 6 of the spacer element 4 remote from the container, the leg ends 7 are adjacent Half-pipe coils 3 spaced apart.

The spacer elements 4 can instead of directly with the container wall also with one Part of this plating 11 to be welded.

In the right part of Figure 4 it can be seen that between the spacer 4 and the end of the leg 7 each a welding groove 8 is arranged, which after welding, see the left part in Figure 4, is closed.

In Figure 5, the spacer 4 has a V shape. With V-shaped leg ends the leg ends 7 of the half-pipe coils 3 are connected, while the V-tip lies against the container wall.

In Figure 6, the spacer 4 is through a profile strip with a rectangular cross-section educated. A longer rectangle side forms the container-side end 5 of the spacer element, at opposite ends of the end 6 remote from the container Leg ends 7 of the half-pipe coils 3 are to be fastened.

In Figure 7, the spacer is through a profile strip with a rhombic cross-section educated. The shorter parallel side of the rhombus is the container wall 2 and longer parallel diamond side assigned to the leg ends 7 of the half-pipe coils 3.

In the last exemplary embodiment according to FIG. 8, the spacer element 4 is U-shaped. Similar as in the V-shape according to FIG. 5, the leg ends 7 of the half-pipe coils 3 can be connected to the ends of the U-legs by welding seams. In Figures 5 to 8 are the weld seams, see Figure 4, not shown, but only the corresponding Weld grooves 8 shown.

The manner in which the spacer elements in the invention are described is briefly described below Object to be attached.

First, the spacer element can be welded to the inside and outside of the container wall with no space problems when welding. After correct Attaching the spacer can then on the container distal end one leg end of adjacent container coils also by welding be attached. According to the invention, one is qualitative in both cases flawless execution of the weld possible, which is particularly true for the so-called Root position, i.e. the first weld position applies. By such flawless Welding therefore does not occur or a gap to the heating / cooling medium to the contents of the container. This easy access to the weld seams there are also cheaper repair options for welding defects or like. It should also be noted that the tank wall and half-pipe coil are made of different materials can be made without the risk of material mixing occurs on the outside (only relevant for inner tube coils).

Claims (9)

1. Container (1) for preparing and/or storing substances, with half pipe coils (3), which are laid externally and/or internally in a spiral fashion on its container wall (2), for carrying a temperature-moderated medium between the half pipe coil and the container wall, wherein a spacer element (4) is disposed between the container wall (2) and the half pipe coil (3), and one end (5), on the container side, of the spacer element (4) is secured to the container wall (2), and mutually spaced leg ends (7), which point towards the container wall (2), of two adjacent half pipe coils (3) are secured to one end (6), remote from the container, of the spacer element (4),
   characterised in that the leg ends are secured to the spacer element by separate securing means.
2. Container according to Claim 1,
   characterised in that the spacer element (4) is a profiled strip.
3. Container according to at least one of the preceding Claims,
   characterised in that the profiled strip (4) has a square or rectangular cross section.
4. Container according to at least one of the preceding Claims 1, 2,
   characterised in that the profiled strip has a substantially U-shaped cross section.
5. Container according to at least one of the preceding Claims 1, 2,
   characterised in that the profiled strip (4) has a substantially V-shaped cross section.
6. Container according to at least one of the preceding Claims 1, 2,
   characterised in that the profiled strip (4) has a rhombic cross section.
7. Container according to at least one of the preceding Claims,
   characterised in that the spacer element (4) is secured to the container wall (2) and/or the half pipe coil (3) to the spacer element (4) by welding.
8. Container according to at least one of the preceding Claims,
   characterised in that welding grooves are formed between the spacer element (4) and the container wall (2) as well as the leg ends (7) of the half pipe coil (3).
9. Container according to at least one of the preceding Claims,
   characterised in that the half pipe coil (3) has an angle at the centre of ≤ 180°, preferably in the range from 130 to 170°.

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