SU1120035A1 - Gas drying device - Google Patents

Abstract

A GAS DRYING DEVICE, including an electrolyzer with a cylindrical body serving as an electrode, and a coaxially placed rod electrode, between which a porous inert nozzle with a water-absorbing substance, gas inlet and outlet nozzles, a chamber with a porous inert nozzle with a water-absorbing substance and a nozzle the latter is larger than the pore size of the nozzle in the electrolysis cell; the chamber is equipped with nozzles for introducing wet gas and outputting dry 4ttile from asbestos, a mixture of electrolyzer with camera, aphid that, in order to increase productivity, it is equipped with a cover of osmotic material in which a part of the wick is placed, and a part of the wick, placed in the electrolyzer, is made in the form of a spiral, wound on a rod electrode .

Description

00 O1

. :. This invention relates to methods.

production and analysis of gases and can be used in the chemical industry, environmental protection and industrial sanitation.

A device for drying the gas is known, comprising an electrolytic cell with a cylindrical body serving as an electrode and a coaxially arranged rod electrode, between which a porous inert nozzle with a water-absorbing substance and inlet nozzles and a gas outlet is placed. A porous, gas-tight nozzle made of an indifferent material impregnated with a substance, such as phosphorus pentoxide, is placed between the electrodes. The test gas is passed through the electrolyzer, and a high voltage direct current source (about 100 V) is connected to the electrodes. Virtually all of the moisture contained in the gas is first absorbed by the moisture-sensitive substance and then decomposed into oxygen and hydrogen. Almost dry C13 gas comes out of the device.

The drawback of the device is that the output gas contains products of water electrolysis (hydrogen-oxygen mixture), and the larger the quantity, the more water in the source gas.

It is also known a device for drying the gas, comprising an electrolyzer with a cylindrical body, a servant, 191M electrode, and a coaxially arranged rod electrode, between which is placed a porous inert nozzle with a water-absorbing substance, gas inlet and outlet nozzles, a chamber, with a porous inert nozzle with water-absorbing fluid ( it is a substance, and the pore size is the last one larger than the pore size of the nozzle in the electrolyzer, the chamber is equipped with nozzles of wet gas and a dry outlet, a wick of asbestos connecting the electrolyte wasted with a chamber.When passing gas through the chamber, it contains moisture in it is absorbed by moisture-sensitive substance and is transferred by a capillary force of 1–4 forces in the fibers of the wick to the electrolyzer. Here the water is decomposed into oxygen and these gases are transported to the atmosphere by a small stream of test gas coming from Kame0352

ry Thus, due to the constant regeneration of the drying mass, continuous operation of the device | 2 3 is carried out. A disadvantage of the known device is the limited resource of its operation, due to the fact that, at the same time with water, the wick partially moves the moisture-sensitive substance through the capillaries. The latter circumstance leads to the fact that the activity of the drying mass in the chamber gradually decreases, and consequently, the productivity. The aim of the invention is to increase the productivity of the device.

The goal is achieved in a gas drying device comprising an electrolyzer with a cylindrical body serving as an electrode and a coaxially arranged rod electrode between which a porous power nozzle with a water absorbing substance, gas inlet and outlet nozzles, a cell with a porous inert nozzle with water absorbing the substance, and the pore size of the latter is larger than the pore size of the nozzle in the electrolyzer, the chamber is equipped with nozzles for the entry of wet gas and dry sheath, asbestos wick Connecting the electrolyzer with a camera. Moreover, the device is equipped with a cover.

of the osmotic material in which part of the wick is placed, located in the chamber, and part of the wick, placed in the electrolyzer, in the form of a spiral, wound on the rod electrode.

The drawing shows the proposed my device.

The device consists of a central rod electrode 1, a cylindrical counter electrode 2, a cover 3 of an electrolytic cell made of insulating material, a nozzle 4 for the output of gaseous electrolysis products,

nozzle 5 with a moisture-sensitive substance, asbestos wick 6, fed with a moisture-sensitive substance, part 7 wick wound on the electrode), part 8 wick, enclosed in a sheath of an osmotic membrane 9, sealing the strap 10 (glass fiber, filaments) |

The device works as follows.

. Moisture from the gas passing through the chamber is absorbed by the moisture-sensitive substance of the nozzle, passes through the osmotic membrane, Hai membrane due to the constant suction of water, as a result of its electrolysis, there is a concentration gradient causing the flow of water molecules in the direction of the nozzle-wick. Capillary forces push water into the electrolyzer, where | It decomposes into Og and Hj. The gaseous products (unlike the known device) are spontaneously removed through the pipe 4.

Acetylcellulose can be used as the simplest osmotic membrane. In this case, as a moisture-sensitive substance, phosphorus pentoxide can be used. .

; Compared with the known ICTBOM device, the operating time of the proposed device increases from 300-500 h to I000-1200 h, and consequently, productivity increases if cellulose cellulose film with a thickness of 100 microns is used as an osmotic membrane. The device works with the following parameters of the prototype:

Moisture Sensitive

natural substance

Granulation nozzles

in the electrolyzer, mm 0.1-0.2

Granulation nozzles

in the chamber, 0.3-0.4 mm

Volume

camera cm 19

Volume 0 of the electrolyzer, cm 6

Electro2 current, mA

Gas velocity

cm / s

0.5-2 5 Content

in the source gas,

g / m

ten

in the exhaust gas,

g / m

7 -9-10

0 Compare the performance of the known and the proposed device. In both devices, the following parameters are identical: the granulation of the nozzle in the electrolyzer is 0.105 0.15 mm, its granulation in the chamber is 0.350, 40 mm, the volume of the electrolyzer is 6 cm; the volume of the chamber is 20 cm; the cell current is 10 mA, the inlet pressure is 0.1 atn, the HjO content in the source gas is 10 g / m. The membrane in the proposed structure of acetylcellulose with a thickness of 100 microns. The remaining data is given in the table.

Gas velocity, cm / s

The content of HjO IB source gas, g / m

Thus, the proposed device allows to increase pe1, 50

1.55

-four

8.0-10

8.5-10

surs work and therefore

and performance

Dry gau

4 Cbtpou I gas

Claims (1)

DEVICE FOR DRYING A GAS, including an electrolyzer with a cylindrical body serving as an electrode and a coaxially placed rod electrode, between which a porous inert nozzle with a water-absorbing substance, gas inlet and outlet nozzles, a chamber with a porous inert nozzle with a water-absorbing substance placed in it, are placed the pores of the latter are larger than the pore sizes of the nozzle in the electrolyzer, the chamber is equipped with nozzles for the inlet of wet gas and the outlet for dry, an asbestos wick connecting the electrolyzer to the chamber characterized in that, in order to increase productivity, it is provided with a cover of osmotic material in which a part of the wick located in the chamber is placed, and a part of the wick placed in the electrolyzer is made in the form of a spiral wound on a rod electrode. ^ SUn., 1120035> / ' 1 U20035 2