SU1398882A1 - Contact element of vortex plate - Google Patents

Description

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The invention relates to vortex contact elements used in mass exchangers and separators: in the chemical, petrochemical, gas, and other sectors of industry where it is necessary to interact with gas or gas; following release of fluid from the current j; and can be used in i absorption, desorption and reci-; faktion apparatus, as well as in gas separators

: Known vortex contact elements and devices, based on the principle of a twisted flow, are used. The main working body i in these devices is a fixed

i multi-swirl swirl

: shchi flow through it

i gas rotational motion. To provide the liver with sufficiently intensive mas- i co-exchange in such devices, either complex swirlers with hollow perforated blades are used, or complex injector fluids of injection fluid are installed in front of the swirler.

The complexity of the design of such devices leads to a violation of the uniform and stable loading of the contact elements, resulting in a decrease in the intensity of mass transfer

A contact element of the mass transfer plate is also known, where the liquid is supplied to the swirler in the interlobe area. The known contact element of the mass transfer plate has a perforated pat in the lower part around the perimeter. cuttings, inside which a swirler with inclined blades is installed, and above it a separator for separating the pro-activated liquid from the gas,

In this contact element, the energy of the gas jet moving at high speed between the bow blades is used to crush the liquid flowing through the perforation. The higher the gas velocity, the more intense the mass transfer process. However, as the gas velocity in the inclined channel increases, the swirler (. In its inter-blade space limited by the curved inclined blades and the nozzle) increases the centrifugal pressure, which leads to a decrease in the flow of liquid through the perforation and, consequently,

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the intensity of the exchange between liquid and gas. A disadvantage is the additional restriction of the gas velocity in the inter-blade inclined channels of the swirler, due to the requirement of complete phase separation in the separator.

The aim of the invention is to intensify the process of mass transfer due to the additional fragmentation of the phases.

This goal is achieved by the fact that the contact element is provided with straight blades mounted in front of inclined pipes in the perforated zone, which are oriented along the axis of the element, with straight blades at least twice as large as the inclined ones.

The installation of straight blades oriented along the axis of the element in front of the inclined blades allows operation at high gas velocities in the perforation zone, which ensures an intensive mass exchange between fluid and gas. In the inclined channels of the swirler, having a larger flow area, the speed is quenched to the required value, ensuring reliable separation of ldkost in the separator.

The drawing shows a contact element, a slit.

The element consists of a cylindrical nozzle 1 having a perforation 2 in the lower part. A swirler 3 is installed inside the nozzle and a separator 4 above it. The Swirl has inclined blades 5, in front of which are straight blades 6, Direct blades or mounted at a distance from the inclined blades, or directly adjacent to them.

. If the contact element is used in a mass transfer column, then on the outer wall of the pipe between the swirler; "separator, it is advisable to install a partition, made in the form of a circular or polygonal plate (not shown).

The contact element works as follows.

The gan enters the nozzle 1 from the bottom, and the irrigating fluid enters through the perforations into the inside of the nozzle. Between the straight blades 6, the gas intensively crushes the liquid and draws upward in a swirling flow through the space between the inclined blades 5. Crushing the liquid with a gas jet in a swirling

stream provides a high intensity of mass transfer between phases. In separator 4, the procontaminated liquid is separated from the gas by centrifugal force and flows down onto the fluid on the plate. During the operation of the element in the gas separator, due to the supply of liquid through perforations into the longitudinal interstitial channels, it is possible to more fully provide the required coagulation of aero

Zrl, located in the gas stream, and thereby produce a more complete separation of the phases.

The main technical and economical advantage of the contact element is the intensification of mass transfer in gas-liquid systems while at the same time ensuring a high quality of separation of procontaminated phases.

Claims (1)

CONTACT ELEMENT OF A VORTEX PLATE, consisting of a nozzle perforated in the lower part along the entire perimeter, inside of which there is a swirl with inclined blades, and above it a separator, on the top and bottom. due to the fact that, in order to intensify the process of mass transfer due to additional crushing of the phases, the contact element is equipped with straight blades mounted in front of inclined pipes in the perforation zone, which are oriented along the axis of the element, and at least twice with straight blades more inclined. C © OO 00 00 No.