SU1565497A1 - Apparatus for cleaning gas - Google Patents

Abstract

The invention relates to the separation of dispersed particles from gases and makes it possible to increase the degree of purification of gases. The purified gas is supplied to the rotating screen 4 and forms bubbles. From the reservoir 14, the initial fluid is supplied to the housing 1, the valve 9 maintains the necessary pressure in the device. Opposite vibroplates 2 vibrate with the phase shifted through ϕ, the frequency of the vibration of the plates 2 increases vertically. This contributes to the fine grinding of gas bubbles. The gas dissolves. The solution enters the tank 10, where the purified gas escapes, and the spent liquid through the regenerator 13 returns to the tank 14. 2 Il.

Description

(21) 4149062 / 23-26

(22) 11/19/86

(46) 05.2390. Bul No. 19 (75) Yu. Yu. Alishauskas

(53) 621.92897 (088.8)

(56) USSR Author's Certificate No. 674769, cl. B 01 D 47/02, 1974

USSR Copyright Certificate № 1261692, cl. On 01 D 47/02, 1984.

(54) DEVICE FOR CLEANING GAS

(57) The invention relates to the separation of dispersed particles from gases and makes it possible to increase the degree of purification of gases. The cleaned gas is supplied to the rotating grid 4 and forms bubbles. From the tank 14, the initial fluid is supplied to the housing 1, the valve 9 maintains the required pressure in the device. The opposite vibroplates 2 vibrate with the phase shifted through l, the frequency of the vibrating plates 2 increases vertically. This contributes to highly dispersed grinding of bubbles gas gas dissolves The solution enters the tank 10, where the purified gas escapes, and the waste liquid through the regenerator 13 returns to the tank 14 2 sludge. 1 tab.

45 77

(L

if

-15

cl

0 SL 4b

CD 1

The invention relates to the separation of dispersed particles from gases using a liquid as a separating agent, namely, washing with a number of different washing sections, and can be used in scientific research institutions and production plants for technological purposes.

The aim of the invention is to increase the degree of purification of gases

Fig. 1 shows the proposed device, section, Fig. 2 shows the layout of the vibroplate.

The device comprises a housing 1 with vibration plates 2 mounted on housing I opposite to each other, connected to vibroblocks 3, rotating gas distribution grid 4 with inclined channels 5, connected via axis 6 to electric drive 7, outlet 8 with adjustable valve 9, reservoir 10 for volatilization of gas with fitting 11, connected via channel 12 through regenerator-cleaner 13 of liquid to reservoir 14 for initial liquid, compressor 15 for supplying liquid, compressor 16 for supplying cleaned, inlet pipe to 17

The device works as follows

The gas to be cleaned by means of compressor 16 is fed to grid 4, which is rotated through axis 6 by electric drive 7. Thus, gas enters the liquid with small bubbles. Bubble channels 5 contribute to grinding the bubbles and grid 4 rotates. the diameter of which is always smaller than the diameter of the channel (while in the straight holes these values coincide) Rotation of grid 4 creates turbulence in the flows of the gas-liquid medium, which also grinds the gas bubbles from the reservoir 14 By means of a compressor 15, the valve 1 enters the casing 1, located in the outlet nozzle 8, provides the necessary pressure in the device. The higher the pressure, the better the solubility of gases, therefore, to completely purify the gases, they must completely dissolve in the liquid. more efficiently, the greater the contact surface of the gas-liquid phases, therefore, the smaller the bubbles. The grinding of the bubbles is ensured by the action of the vibroplates 2 connected to the vibroblocks. 3 Opposite vibrating plates tourists with a phase shifted by n Thus, the gas bubble getting into the vibration zone sharply compressed and thereby comminuted, ie disintegrates into several vesicles vibration frequency vibroplastin 2 rises vertically, which is associated with the bubble sizes in the lower part USG

0

5 about 5

0 0 Е

five

Roe bubbles are larger, therefore, to overcome their inertia requires

longer vibrations. Smaller bubbles require higher frequencies, because, due to their low inertia, they can oscillate "in time with low-frequency oscillations and thus not be ground

Basically, the process of grinding bubbles occurs at the boundaries of the vibration zones. Since the phase of vibration of neighboring zones does not coincide (equal to the frequency), then the bubble at the same time is influenced by two oppositely directed forces. Thus, it is crushed. Grinding occurs until the purified gas completely dissolves in the liquid. Then the liquid with the dissolved gas through the outlet 8 and the valve 9 enters the tank 10 (with low pressure) to volatilize the gas. The purified gas is removed through the nozzle 11 The spent liquid through the channel 12 enters the regenerator-purifier 13, the design of which is ISITO on the specific gas to be purified (e.g., if the gas contaminated with dust, the regenerator can be comprised of a filter, centrifuge, etc.) from the regenerator 13, the purified liquid is returned to the tank 14

The operation of the vibroplate is carried out as follows.

The vibration block 3 consists of piezoceramic vibration elements 18, on which “a vibration plate 2 is laid, is attached to the body of the vibration block 3 by means of springs: 19 When electric charge is applied to the vibration block 3, the vibration elements 18 swell, and the vibration plate moves 2 Spring 19 promotes the return of the vibration plate 2 into initial state In the case of operation of the vibroplates with a phase shift on one side of the surface of the piezoceramic vibration elements 18 in the vibroblocks 3, they are connected to ground 20, the other side of their surface is connected to However, each pair of oppositely disposed vibration blocks 3 is connected to another contact of the power source, one to contact 21, and one to contact 22. Thus, at alternating current, contacts 21 and 22 periodically change their polarity and, therefore, vibration blocks 3 work according to this. If a positive potential is applied via pin 21 to vibro elements 18, then a negative potential is applied to pin 22. Thus, one pair of vibroblocks 3 "swells up the friend returns to the initial state. Therefore, the vibroblocks 3 generate in pairs oscillations shifted through T in phase. Phases of the opposite vibrators 3 coincide, but the direction of the generated shock oscillations is opposite.

Example. Gas is used in quantities of nitrogen, water is liquids, and sodium chloride is a contaminant. Dispersion of particles of contaminants, diameter of inclined channels - m. Three vibrating zones are used: 1-10 Hz, II - 100 Hz, III - 1000 Hz.

The content of the loader at the input and output of the device is given in the table.

Content of the bootloader,%

inlet on outlet

The proposed device makes it possible to increase the efficiency of gas cleaning by 20–25%, to achieve the degree of gas cleaning from aerosol impurities unrecorded by instruments, for example, of the FAN type, and has wide possibilities for selecting the cleaning mode

depending on the specifics of the gas to be purified.

Claims (1)

Invention Formula A gas cleaning device comprising a housing filled with a liquid, an inlet and outlet nozzles, a rotating gas distribution grid located in the lower part of the fluid column and connected to an axis with an electric drive, a separation tank connected through a fluid purifier to the housing, characterized in that the degree of gas purification, it is provided with a valve placed in the outlet nozzle, vibroblocks and vibration plates connected to them located on the outer surface of the housing one rotiv other of increasing height enclosure oscillation frequency, wherein the gas distribution grid is provided with inclined channels.