Mass transfer column with gasket, flange for stuffing and mounting gaskets

 

(57) Abstract:

Mass transfer column (1) contains a gasket (2), which can be mounted in the horizontal position of the column. The column is between the gasket and the wall (10) of the annular gap (12), which are the sides (3). They include respectively one belt zone (30), adjacent to the gasket. To the upper edge of the belt zone (30) adjacent flat elements (31), United elastically forming the transition to the wall (10) and serving to drain from the wall to the gasket during operation of the column. At least part of the sides has in his belt zones tabs (4) that if a horizontal column hold the annular gap open and permanent form under the action of gravity gaskets. The invention prevents deformation caused by the load created by the gasket. 3 S. and 6 C.p. f-crystals, 10 ill.

The invention relates to a mass transfer column with a gasket according to the restrictive part of paragraph 1 of the claims. It also refers to the flanges gaskets columns of this type and to the method of installation and/or transportation of the column.

From EP-A 0601257 Izvestia mass transfer column, the gasket which at different altitudes Opla and serve to reject mass flow in the column. Thus, on the one hand, creates a barrier to gas flow in the annular gap near the gasket along the casing walls. The gas is deflected in the gasket where it comes in contact with the fluid flowing through the gasket. On the other hand, the liquid, which gasket goes on the wall of the column, is sent back through the sides into the packing.

Gaskets are described in EP-A 0601257 made, usually from a large number of filling elements. In a particularly preferred form of execution of the filling element has layers of wavy plates are parallel and directed along the axis of the column, with the open annular channels. For large diameter columns the individual filling elements are composed of several segments. Typically, these gaskets are designed for filling elements vertically installed in the column, with each filling element in the annular gap at the edge of the gaskets at the same time is embedded in at least one side. When installing the gasket, i.e. when installing in a column, with walls must be treated with care. Should be excluded deformation, which can damage the deflecting function of the bumpers.

Mentioned gasket open the first Installation of this type is preferred, namely, especially when the gasket as, for example, in the manufacture of distillation columns for the separation of air is inserted into one place, and the operation of the column provided elsewhere. When you change the column must be transported in the supine horizontal position. In this regard, efforts are being made to ensure that the transportation is not damaged elements of the column. The bumpers are made of sheet metal, when the transportation is most prone to damage. The bumpers also create problems when mounting gaskets. Therefore the task of the invention is to provide a tool that allows with a horizontal column mounting gaskets and transport columns. This problem is solved by using columns with borders that are performed accordingly, pursuant to paragraph 1 of the claims.

Mass transfer column has a gasket that can be installed in the horizontal position of the column. The column is between the gasket and the wall of the column annular gap, in which there are bumpers. They cover, respectively, adjacent to the gasket tape area. To the upper edge of the belt zone adjacent flat is received to return during operation of the column of liquid from the wall to the gasket. At least a portion of these flanges has according to the invention the tabs in their belt areas, which in case of horizontal arrangement of the column under the weight of the gasket holding annular gap open and permanent form.

Dependent claims 2-7 claims relate to preferred forms of execution of the columns according to the invention. Subject to paragraph 8 of the claims is, in fact, running boards. Paragraphs 9 and 10 relate to the mounting of the packing and transportation of the column.

Hereinafter the invention is explained by using drawings.

In Fig.1 shows a longitudinal section of the underlying column according to the invention when mounting gaskets,

Fig. 2 - part column according to Fig. 1 in a perspective image, and the view in the direction of the axis of the column,

Fig. 3 is a plot of the rim according to the invention,

Fig. 4 is a longitudinal section of the marginal zone of the column with walls according to Fig. 3,

Fig. 5 - the second form of execution side,

Fig. 6 - run projections in the form of thickenings in three different forms,

Fig. 7 - the sixth form performing a side,

Fig. 8 -10 - seventh form of the side.

In Fig. 1 or 2 mass transfer column 1 has a gasket 2, sostavlen and gasket 2, there are 3 sides. Each segment 20 is composed of a stack of corrugated plates 200, forming open intersecting channels. Filling elements 21, 22; 21', made of segments 20, represent a different distribution gaskets 2. Plate 200 adjacent the filling elements 21 and 22 or 22 and 21' are directed transversely to each other. The gaps 23 in the joints between adjacent segments 20 are filled, preferably, for example, by stacking stretch lattices. Using such elements is fixed, on the one hand, the position of the segments; on the other hand, they formed an additional part of the stuffing.

At a side 3, which can be seen in Fig. 2, laid only one part. Additionally, the inserted portion is shown dash-dotted line. The flanges 3 may be mounted on the wall 10 of the column or on the gasket 2. Is preferred, if they form a separate structural elements, which are held tightly in the annular gap 12 is only due to the forces of elasticity and friction. Subsequent figures show examples of such bumpers 3.

Column 1 is horizontal and rests on the supporting beams 5, standing on the floor 50. It is advisable to position Thereby, column after installation of the filling element 22 can be rotated, for example 90oaccordingly, in order to occupy a favorable position for installation of the following filling element 21.

Bumpers must not razdavlivanija under the weight of the filling elements 21, 22. When a load we are talking about the maximum load resulting from acceleration forces during transportation of the column. Acceleration at the shock can be approximately four times the magnitude of the acceleration of free fall g. Using distantsiruyutsa elements that may invest further, it is possible to solve the problem. However, such auxiliary means increases the cost of manufacture of the columns; and, in addition, they may cause interference in the implementation of mass transfer process. A much more preferable solution is created by using the measures according to the invention, namely, if the skirting is provided by structural elements that prevent deformation caused by the load created by the gasket.

The flanges 3, as shown in Fig. 3-7 represent improvements annular element described in EP-A 0601257 and show the th 10 columns see Fig. 3 and 4, includes the belt area 30 adjacent to the gasket 2. To the upper edge of this zone 30 adjacent flat elements 31, forming the transition to the wall 10 and is provided for returning the liquid from the wall 10 to the gasket 2 during operation of the column 1. On the lower edge of the belt zone 30 is foldable element 32 with cut holes 320 and 321. Folding element 32 and the flat elements 31 are parts of a sheet of spring-elastic material. This sheet element is designed in such a way that the knob 3 under the action of forces of elasticity is clamped in the annular gap 12.

The slots 310 between the planar elements 31 are offset relative to the slots 320 in a folding element 32. (The slits 310 and 320 may be located otherwise). Due to the bending of the rim 3 in the annular gap 12 straight line 33 of bending between the slits 310 and 320, which clamp the partial surface 34 in the form of equilateral triangles. In the inner zones of these partial surfaces 34 posted by obtained by stamping or deep drawing protrusions 4 in the form of thickenings. They increase the rigidity of the partial surfaces 34, without, however, the negative impact on bend lines 33. These ledges at the horizontal location of the colon is the same distribution of the protrusions 4, designed in such a way that at maximum load gaskets 2 tabs 4 do not experience virtually permanent deformation. Minor deformation Pets, if you saved the deflecting function of the bumpers. With a vertical arrangement of the column protrusions 4 are not in contact with the wall 10.

The knob 3, completely covering the gasket 2, made whole, with full coverage of all gaskets 2; or it is composed of two or more elements. Each element is made of steel sheet deep drawing, preferably, of sheet thickness in the range from 0.1 to 0.3 mm, the Projections 4 are made in the form of thickenings and are arranged in two offset relative to each other in rows, along the belt zone 30, and the distance between adjacent projections of one series are in the range from 2 to 8 cm, preferably 4 see

In the example according to Fig.5, the protrusions 4 are made in the form of partial surfaces 34, as truncated pyramids with three side surfaces. In Fig. 6, together with the other two examples, you can see another form of a pyramid ledge 4.

When deep drawing of the projections 4 in the form of thickening of the sheet may have cracks. To prevent cracks in the highest points of the projections 4 can the P> Band area 30 of the knob can also be made of two-layer or at least partially double-layer: see the sixth exemplary embodiment in Fig. 7 and the seventh exemplary embodiment in Fig. 8 - 10. Layer 35 or 302 closest to the wall 10 columns, structured projections 4, as shown in Fig. 7 - ribs, which have the form of folds, in the seventh example - again thickenings.

In the example according to Fig. 8-10 (Fig. 8 is a top view; Fig. 9, 10 - side view of the deflection function of the mass provides a thin film 301 at the upper end of which a narrow flat elements 31 skip the annular gap 12, which is compared with a wide flat elements 31 to provide a more intimate contact with the curved surface 10' of the wall. The projections 4 are obtained by embossing the second, much more thick sheet 302. Both layers 301 and 302 are connected to each other by spot welding 305 and 305'. Due to spring areas 303 and 304 of the second layer 302 can snuggle up to the first layer 301 and the tape area 30 is clamped and possibly passes between points welds 305 and 305' at the top. In Fig. 9 shows a side 3 in uncompressed form, and Fig. 10 is squeezed. Arrow 15 shows the pressure force created by the gasket 2, the arrow 14, the corresponding prativasil from the wall is carried out with the installation of the gasket 2 in accordance with the bending of the annular gap 12.

The known installation with mass transfer columns used on ships or floating platforms. Because of the oscillating bottom, on which are these columns, their gaskets have the same mechanical load, such as during transportation of the column. Therefore, bumpers according to the invention can be successfully used in this application.

1. Mass transfer column (1) with gasket (2) which is mounted in a horizontal position of the column containing the annular gap (12) between the gasket and the wall (10) columns, which are the bumpers (3), each of which includes the belt area (30), adjacent to the gasket, and at least part of the sides in their belt areas have tabs (4), with a horizontal column under the weight of the gasket holding annular gap open with a permanent shape, wherein the curved bumpers (3), located in the annular gap (12), have in their belt zones (30) partial surface (34), limited respectively by straight lines (33) bend, and in the inner areas of these partial surfaces are tabs (4).

2. Mass transfer column under item 1, characterized in that the belt zone (30) of the bumpers are made on the East.

3. Mass transfer column under item 1 or 2, characterized in that the belt zone (30) is made at least partially double-layer, and the layer (35, 302), closest to the wall (10) of the column, has a structure with protrusions (4).

4. Mass transfer column according to any one of paragraphs.1 to 3, characterized in that the sides (3) is fixed between the wall (10) and gasket (2) only the elastic forces and friction, and the elastic force generated by the elements (31, 32) bumpers (3), molded accordingly.

5. Mass transfer column under item 1, characterized in that the projections (4) are made in the form of thickenings on the sheet, the highest point of which have one hole (41, 42).

6. Mass transfer column according to any one of paragraphs.1 to 5, characterized in that the gasket (2) is made of sealing segments (21, 22) which are respectively in parallel, have layers of corrugated plates (200), directed along the axis of the column, open-overlapping channels.

7. The knob (3) gaskets (2) mass-transfer columns (1) according to any one of paragraphs. 1 - 6, characterized in that it is made integral or composite of separate elements, each element comprises a tape area with ledges (4), to the upper edge of the adjacent flat elementdata from the wall to the gasket during operation of the column, each element is made of a steel sheet deep drawing, preferably of sheet thickness in the range from 0.1 to 0.3 mm, and the projections (4) are made in the form of thickenings and are arranged in two rows that are offset relative to each other along the belt zone (30), and the distance between adjacent projections of one series are in the range from 2 to 8 cm, preferably about 4, see

8. The method of mounting gaskets (2) in a mass transfer column (1) according to any of paragraphs.1 to 6, in which a blank column result in a horizontal position and then to the column insert bumpers (3), and gasket, distributed in segments (20), characterized in that the space in the joints between segments, preferably filled in, for example, the introduction of the extended lattice.

9. The method according to p. 8, characterized in that the mounting gaskets (2) exercise in the first place, in a horizontal or vertical position of the column, the column (1) establish in the second place, and the transportation of columns from the first position to the second exercise in its horizontal position.

 

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