SU728874A1 - Mass exchange apparatus - Google Patents

Description

one

The invention relates to the designs of mass transfer apparatus and can be used in the processes of the section-NIN air by the method of deep cooling.

The known design of the mass transfer apparatus, used as a distillation column for the production of air separation products, is made in the form of a cylindrical body divided in height by contact plates with shaped overflow devices. The plates are attached to the body to a central cylindrical displacer by which it creates a circular current of fluid on the plate p. .

Hydrodynamic irregularity of the plates in the radial direction. The scientific research institutes arising due to the effect of the inertia robust forces and of various lengths by the fluid on the plates, which significantly reduces their effectiveness.

Overflow devices are complex and work at MAINTENANCE.

The central displacer is used only for fastening the plates and reduces the effective area of the mass exchange apparatus.

Also known is a mass transfer apparatus containing a vertical cylindrical body divided by the height of contact plates, made in the form of two segments, into contact points and re-flow devices located along the periphery of the contact stages 2.

The disadvantages of the known apparatus are the difficulty of mounting the plates or their individual parts with increasing diameter of the apparatus and the hydrodynamic unevenness of the work of the plates disturbing the distribution of the liquid.

Claims (2)

In order to intensify mass transfer due to a decrease in hydraulic resistance, the device is equipped with a rectangular box installed along the axis of the housing and receiving devices located inside the box between the bezels, and the segments are fixed on the box in which holes are made at the level of the plates. FIG. 1 shows a part of the apparatus, a longitudinal section: in FIG. 2 is a section along A-A in FIG. 1. The mass transfer apparatus consists of a vertical cylindrical body of a height-height contact plates 2, made in the form of two segments 3, on the contact stage 4 and overflow devices 5, located on the periphery of the contact stage. The axis of the housing 1 is set straight. u1H) a flare duct 6 inside which are accommodations 7 placed between the plates. The segments 3 are fixed on the duct 6 in which holes 8 are made, located at the level of the plates 2. The device works as follows. Flowing device 5 flows to the bubbling portion of the plate 2 where its mass transfer with rising steam occurs. Due to the presence of the hole 8, a uniform distribution of the liquid over the bubbling area is achieved. The reacted liquid is mixed in the receiving device 7 of the central box and the bottom plate 2 is fed, where it is two-fold with contact with steam from the center to the periphery. by reducing the gdrodynamic non-uniformity with increasing diameter of the apparatus. The central straight duct, together with the longitudinal and transverse partitions placed inside, provides the necessary rigidity of the structure, which is less bulky, more technological and easier to manufacture and install. The invention of mass transfer apparatus, comprising a vertical cylindrical body, divided by height by contact plates, made in the form of two segments, into contact stages and power devices located along the periphery of contact stages, and in order to intensify mass transfer, it is provided with a standard duct mounted along the axis of the housing and with receiving devices placed inside the duct between the plates, and the segments are fixed on the duct with holes in it; data at the level of the plates. Sources of information taken into account in the examination 1. Air separation by the method of cooling. Ed. Epifanova P. I and Akseevroda, L. S., M., Chem. 1964, vol. 1, pp. 414-421. 2. The UK patent number 1035336, cl. F 4 K, 1963 (prototype) .X. - -five xJL eight/ 7  BUT 6 7 Fig -/four