SU1528521A1 - Apparatus for multistage contact of steam (gas) with liquid - Google Patents

Abstract

The invention relates to columns for heat and mass transfer processes, can be used in the chemical, petrochemical and other sectors of the industry and allows for increased productivity by preventing steam (gas) from breaking through the cavities of the overflow channels. The device consists of a housing, horizontal partitions, contact devices, overflow pipes in the form of solid channels, bypass valves, with spindles installed in the overflow pipes, and fittings for inlet and outlet of steam (gas) and liquid. In the apparatus, the overflow cranes are made of hermetic and insulating cavities of the contact stages from the cavities of the overflow pipes, the spindles of the bypass valves are equipped with movable rods, and the rods are rigidly connected with a clip. 1 il.

Description

(21) 4270338 / 31-26

(22) 04.22.87

(46) 12/15/89. Bul No. 46

(71) Siberian Institute of Technology

(72) H. A. Voinov, V. A. Markov, N. A. Nikolaev and A. A. Yudakov

(53) 66.015.23.05 (088.8)

(56) USSR Author's Certificate No. 860795, cl. B 01 D 3/26, 18.06.79.

USSR Author's Certificate No. 1194439, cl. B 01 D 3/26, 06/29/84.

(54) APPARATUS FOR MULTI-STAGE CONTACTING PARA (GAS) WITH LIQUID

(57) The invention relates to columns for heat-exchange processes, can be used in the chemical, petrochemical, and other industries of the industry and allows increasing productivity by preventing steam (gas) from breaking through the cavities of variable channels. The device consists of a body, horizontal partitions, contact devices, overflow pipes in the form of solid channels, overflow valves with spindles installed in the overflow pipes and fittings for the input and output of steam (gas) and liquid. In the apparatus, the overflow cranes are made of hermetic and insulating cavities of the contact stages from the cavities of the overflow pipes, the spindles of the bypass valves are equipped with movable rods, and the rods are rigidly connected with a clip. 1 il.

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The invention relates to devices of the colope type for carrying out heat and mass exchange processes in the chemical, petrochemical, food and other industries.

The purpose of the invention is to increase the productivity of the apparatus by preventing steam (gas) from breaking through the cavities of the overflow channels.

The drawing shows the proposed apparatus, a general view.

The device consists of a housing 1, in which horizontal partitions 2 are installed vertically, having contact devices 3, and two overflow channels 4 (left and right). In the overflow channels 4, overflow valves 5 are installed, having P1-pin-hitch 6. Spindles 6 of each crane 5 are interconnected by UJTOKOM 7. which performs a reciprocating movement due to movement of the cramp 8 connected to the engine (not shown). The contact devices 3 consist of cylindrical tubes 9 in which openings 10 are provided for introducing a liquid and gas nozzles 11. In the lower part of the contact tubes 9, turbulators 12 of a gas-liquid flow and restrictive cups 13 are installed. Cells 14 and 15 are provided, and for steam (gas) lUTyne pa 16 to 17.

Overflow valves 4 can be made rectangular or cylindrical in shape (depending on the design of the overflow valves 5). The bypass valve 5 is a three-way valve (for example, iiiapoFsoii ()) and. 1 and 11 | 11) () ko1-X1Y). in which the channels 18 are made for the flow of fluid from the contact stage into the cavity of the overflow channels 4 and the channels 19 for the flow of fluid from the cavity of the channels 4 to the contact level.

The device works as follows.

The liquid passes through the central part 14 to the upper horizontal partition 2, and from there through the overflow channels 4 enters alternately to the underlying horizontal partitions. Steam (gas) enters the lower part of the apparatus through fitting 16, and then enters the contact device 3 and into the cylindrical tubes 9. Then the steam (gas) passes through the gas nozzles 11, acquires high speed and interacts with the liquid, which enters the cylindrical tubes 9 through the holes 10. Then the vapor (gas) distributes the liquid on the inner surface of the cylindrical tubes 9 and transports it in the form of a liquid foam, and there is an intense heat and mass exchange. At the exit of contact devices

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3, the liquid is drained into the partitions 2, and the vapor (gas) and particles of the liquid in it enters the swirler 12 of the gas-liquid flow, where, under the action of centrifugal force, the liquid particles are thrown onto the inner surface of the restrictive cup 13 and flow along it into horizontal partitions, and the vapor (gas) enters the following positions

contact devices, in this case there is an additional heat and mass transfer. After contact with steam (gas), the liquid from the contact stages flows through the channel 18 in the overflow valve in the cavity of the overflow channel 4 with closed

channels 19 for flowing liquid from the channel to the contact stage.

In the -JTOM case, the closed channel 19 of pepstakes a breakthrough of steam (gas) through channel 4 to the overlying level. At the same time, the liquid from the other (right) re-THTHOR j of channel 4 through the open channels 19 flows down to the contact stage, emptying the cavity of the channel with the channel 18 closed (indicated by the right channel). Closed

5 channel 18 also prevents steam (gas) from breaking down from the downstream side – iiyH CTvncHi) through 1H n –via kay.py. After the accumulation of fluid in the cavity of the left channel and emptying the fluid in the right 4, the clamp 8 rotates, which moves the rods 7 and the shpinddel 6. At the same time, the canal is closed. The SUT 18 and the opening of channels 19 in the left channel 4 and vice versa (in the right channel the channel 19 is closed, the channel 18 1 is opened for the full wave length).

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Thus, the installation of overflow cranes in overflow channels, which hermetically isolate the cavities of the contact stages from the valve cavity, as well as on the rods connected to the spindle of the relief valves and the clamp, increase the productivity and reduce the size of the apparatus, which ultimately reduces the cost of iiycKaeMoi o product.

Claims (1)

Invention Formula Apparatus for multi-stage contacting of steam (gas) with liquid, coming from the housing, horizontal partitions, contact devices, overflow pipes in the form of solid channels, overflow valves with spindles installed in the overflow pipes, and fittings for steam inlet and outlet (gas ) 5 and liquids, characterized in that, in order to increase the productivity due to the prevention of steam (gas) breakthrough through the cavities of the overflow channels, 15 the inlet valves are sealed by the spindle of the relief valves equipped with and contact cavity cavities with movable rods, with the rods rigidly steps from the cavities of the overflow pipes connected by a bracket.