CS252690B1 - Padding for column type devices - Google Patents

Abstract

The solution concerns a filling for column-type apparatuses. The filling is formed by one layer or several layers, each layer consisting of segments, which are metal mesh plates reinforced with spacer elements. Individual mesh plates are bent several times in the horizontal direction and individual planar parts of the plates are either vertical or form an angle of up to 90 °C with the vertical plane. The plates in one layer are rotated by up to 90 °C with respect to the plates of the second layer.

Description

The invention relates to a filler for column type apparatuses.

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There are a number of fillers for column apparatuses. An important criterion for the evaluation of fillers is the effectiveness of the filler (characterized eg by the height of the theoretical palate) and the pressure loss.

When designing a filler, a compromise is usually sought between pressure loss and efficiency, generally speaking, between investment and operating costs. Various types of metal mesh, such as expanded metal, are suitable construction materials for the production of fillers. There is known a vertical planar filler made of expanded metal or so-called S-filler made of expanded metal and others. Each of these fillers has its advantages and disadvantages. The vertical planar filling made of expanded metal, for example, has a favorable pressure drop. Its disadvantages include lower efficiency, problematic production in terms of flatness requirements over the entire length and width of the installation, and last but not least, the difficulty in designing the liquid phase distributor. On the other hand, S - expanded metal filler as a type of loose filler has worse parameters in terms of pressure losses, increased risk of clogging etc.

The above-mentioned drawbacks are overcome by a vertical filler for the column type apparatuses of the invention made of metal mesh. The essence of the invention is that the filler consists of one or several layers, each layer consisting of segments. The segments are metal mesh plates reinforced with spacer elements to determine the mesh spacing. The individual plates of the netting are bent several times in the horizontal direction and the individual planar parts of the plates are either vertical or form an angle of up to 90 ° with the vertical plane. The sheets in the individual layer are rotated up to 90 ° relative to the sheets of the second layer. ‘

The advantage of the filler according to the invention is low pressure loss comparable to the type of vertical planar installation and higher efficiency due to better radial mixing of the gaseous phase as the gas flow direction changes in individual parts of the filler segment. Furthermore, it is a higher efficiency due to the repeated partitioning of the liquid phase, which occurs at the transition of the liquid phase between individual segments or even within the segment. In addition, there is a lower demand on the design of the liquid phase distributor due to the repeated distribution of the icapal phase within the filler. Last but not least, it is simple production, low resources and easy assembly dismantling apparatus.

Figure 1 shows the filler segments, Figure 2 shows the metal mesh plates at the edge curved, Figure 3 shows a top view of the arrangement of the plates in the segment, Figure 4 shows spacers with different curvature shapes, and Figure 5 is a side view of an arrangement of plates in a pad segment where

3 ^{e the} metal mesh plate is a spacer element

C is the spacing between the mesh plates

V is the height of segment th is the bending angle of the mesh plate

Example

Metal mesh 1, such as stainless steel expanded, 0.5 mm sheet thickness, 16/6 mesh, 1 mm blade displacement, 600 x 3000 mm, supplied in coils, and largely uneven in the longitudinal and transverse directions, was in the longitudinal direction, cut to 300 mm wide and 800 mm to 150 mm long panels to fill the cylindrical segment. By squeezing the two longer edges at a width of 30 mm at an angle of 30 °, all inequalities have been leveled to an acceptable tolerance (max.

up to 3 mm at the highest point of the wool when laid on a flat surface). Spacers 2 ^{of a} stainless steel strip 0.5 mm thick and 15 mm wide adjusted to a 15 mm C spacing between the plates were attached to the panels so treated by spot welding on one side (Fig. 5). The prepared panels were composed of a cylindrical filler segment with a height V of 292 mm and a diameter of 800 mm. By wrapping the produced segment with two stainless strips 0.5 mm thick and 30 mm wide, a higher segment strength was achieved.

By stacking the segments so that the planes of the plates in the segments are at an angle

90 ° and mutual interlocking of these boards at the cutting sites of the net (eventually the boards of the lower segment into the grate provided with sawtooth teeth) were achieved by reinforcing the filling in the marginal parts against deformation due to the own weight of the filling.

Claims (1)

SUBJECT OF THE INVENTION A filler for column type apparatus consisting of a vertical metal mesh, characterized in that the filler consists of one or several layers, each layer consisting of segments, which are metal mesh plates (1) reinforced with spacer elements (2) for determining the mesh spacing, the individual sheets of the netting are bent several times in the horizontal direction and the individual planar portions of the sheets are either vertical or at an angle of up to 90 ° with the vertical plane, the sheets in one layer being rotated by up to 90 ° relative to the other sheets.