SU1212550A1 - Gas-lift apparatus - Google Patents

Description

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The invention is intended primarily for use in the microbiological industry for carrying out processes of biochemical transformations in gas-liquid systems, as well as in chemical technology for carrying out processes of oxidation, chlorination, bromination, etc.

The aim of the invention is to increase productivity by increasing the reaction zone of the apparatus, the surface of the contact a phase and the creation of a stable circulation.

The drawing shows schematically --- the proposed gas-lift apparatus.

The device includes a vertical cylindrical body 1, three tube sheets: the top 2, the bottom 3, an additional top 4. Grates

2 and 4 form the upper gas chamber 5. In tube grids 2–4, a vertical tube bundle is fixed, separated by bubbling 6 and circulation tubes 7. The lower ends of all tubes are extended, and 3 g are elongated under the tube grid pipes 6 at the same level are made holes 8 for the introduction of gas. B. The steaks of the circulation pipes 7, located in the upper gas chamber 5, are filled with gas inlets 9. The upper sections of pipes 6 and 7 are drawn out by the Bbmie tube sheet 4, with the upper sections of the bubbling pipes 6 being located above the sections of the circulation pipes 7; The upper sections of the tubes 6 are in the gas phase, and the upper sections of the tubes 7 are in the liquid phases. The apparatus is equipped with a separation chamber 10 with a droplet separator 11 and fittings for introducing and withdrawing phases and heat or cold of the precipitator.

The device works in the following way.

In the apparatus filled with the reaction mass under the lower tube sheet

3 a gas is supplied which, by squeezing the liquid from the lattice 3, comes from

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gas injection holes 8 for entering into the bubbling tubes 6. Passing through the bubbling tubes 6, the gas is separated in the centration chamber 10 and, after separating

5 from the liquid droplets on the drip tray 11, is removed from the apparatus. Due to the difference in the densities of the liquid in the pipes 7 and the gas-liquid mixture in the pipes 6 in the apparatus circulating liquid is generated. The gas-liquid mixture moves up through pipes 6, and the liquid through pipes 7 goes down. After the circulation has been established, a gas is supplied to the upper gas chamber 5, which, after depressing the liquid from the upper

tube, squeezes its four-hole 9 into the circulation pipe 7 and begins to flow into the cavity of these pipes, where it is captured

20 by a liquid stream moving downward through the circulation pipes 7.

, To ensure stable circulation and prevent breakdown of the circulation circuit, the amount of gas,

25 coming through the holes 9, less gas flow entering through the holes B. The stable circulation is also ensured by the difference in the position of the upper sections of the pipes 6 and 7. (

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Due to the fact that the upper sections of the bubbling tubes 6 are located in the gas phase of the separation chamber 10, which excludes the possibility of fluid flow in them, is provided by the movement of the gas-liquid mixture only in one direction. Access from pipes 7 to the bottom of the tank, the gas is separated, collected under the bottom

40 tube grids 3 and, mixed with fresh gas, flows through the openings 8 into the bubbling tubes 6. Thus, the reaction zone of the apparatus includes both bubbling tubes 6 and circulation tubes 7. Depending on the nature of the reaction into the annular tube the space of the apparatus is supplied with heat or coolant. .

Liquid

Compiled by A. Likhanov Editor S. Patrushev Tehred M. Parotsay Proofreader O. Lugova

Order 672/11 Circulation 527 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch ShP Patent, Uzhgorod, st. Project, 4

Claims (1)

A GAS LIFT APPARATUS containing a cylindrical body with a lid and a bottom, upper and lower chambers located inside it, an upper and lower tube sheet, a bundle of vertical circulation and bubbling pipes, the upper ends of which are located above the ends of the circulation pipes, characterized in that, with In order to increase productivity by increasing the reaction zone of the apparatus, the contact surface of the phases and creating a stable circulation, the apparatus is equipped with an additional / tube solution installed above the upper pipe grid with the formation of a gas chamber between them, the ends of the bubbler pipes are located in the gas phase, and the ends of the circulation pipes are in the liquid phase, and holes are made in the sections of the circulation pipes located in the gas chamber.