SU1325254A2 - Smoke stack - Google Patents

Abstract

The invention relates to devices for the purification of high-speed gas flows and makes it possible to increase the efficiency of coagulation of gaseous J- ' B and solid impurities by temperature to vary the environment. The flue pipe contains a gas exhaust pipe 1, with a spinner 2 placed therein, an electrode system 3 and a dust collector 7. Compress the air through the flexible pipe 12, through the cavity of the axis 11, the holes 15 in the walls of the axis 11, the channels 13, 14 of the sleeve 9 are fed into the cavities blades 10, where, as a result of adiabatic expansion, it cools, and through holes 16 blades enters the gas exhaust shaft 1. As a result, the spinner 2 begins to rotate, and cold air, meeting the dusty flow, promotes coagulation of gaseous and Q solids. Large and scooguli - 6 00 GO ate yu O

Description

Particles are discarded by the blades 10 into the bag 7. The remaining impurities are trapped in the system of electrodes 3, where. they charge in the field.

The invention relates to a device aaMj purifying industrial emissions into the atmosphere5 can be used in fields where there is a need to clean high-speed gas streams in ducts from boilers4 and is an improvement on the device according to aut. No. 1143932.

The purpose of the invention is to increase the efficiency of coagulation of gaseous and m: impurities by temperature disturbance of the medium.

The drawing shows the chimney pipe.

The chimney contains a gas exhaust pipe 1 with rotor 2 mounted in it, an electrode system 3, mounted on step insulators 4, and fixtures 5 and 6 for fastening the turntable 2 and electrode system B to the pans 7. with guide element 8 and a source of compressed air (not shown).

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The pinwheel 2 is a dielectric sleeve 9 with attached to it; hollow angular blades 10 and mounted rotatably on the hollow axis 11, the cavity of which through the flexible pipe 12 is connected with a source of compressed air. In the sleeve 9, the channels 13 and 14 are made, and in the walls of the axis 11 there are holes 15 for communicating the cavity of the axis 11 with the cavities of the blades 10. On the lateral faces of the blades 10 there are holes 16 for releasing the expanded compressed air and creating reactive force. moment. Electrodes 3 are metal, rings 17 with teeth 18, made on the upper and lower bases of ring 17 and mounted both on external and internal ledges of insulators 4, with the diameter of each subsequent ring 17 more than the previous one by 2h, Where

Rone discharge, coagulate and precipitate on the walls of the gas exhausting trunk 15 roll into the bag 7. 1 Cp. f-ly, 1 ill.

h is the interelectrode distance in relation to the supply voltage and, like / 612; which ensures the constancy of the electric field strength, with the rings 17 connected to a high voltage source such that each successive ring has opposite polarity, the distance between the adjacent rings 17 is determined from the ratio Tl h / 2, and the tooth 18. each rings shifted. in relation to the teeth of the next ring in half step.

(5 The device works as follows.

A high voltage source (11 kV) is connected to the rings 17, the polarity of each subsequent

The Q ring is reversed, and at the same time the air from the source of compressed air is compressed through the flexible pipe 125 through the cavity of the axis 11, the holes 13 in the walls of the axis 11, the channels

5 13 and 14 sleeves 9 is fed into cavities

blades 10 where adnabati- occurs. eroj expansion as a result

whereby the air is cooled and the surface of the blades is covered with a rim.

0 Next, the occiput air, the outlet through the holes of the 16 blades 10, creates a reactive force that forms a torque that is proportional to the speed of exit of cold air and the pressure of compressed air, as a result, the spinner 2 begins to rotate, creating thrust and turbulization of the flow. In addition, a temperature perturbation of the medium is created, consisting in

Q that the cold air, meeting the dusty smoke stream, forms condensation drains that are intensively adsorbed on solid impurities (ashes, unburned fuel particles) on

with a developed wetted surface of which gaseous acidic acids (nitrogen, sulfur and carbon) adhere due to having 15

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of the last charge obtained in the combustion chamber of the boiler house by thermal ionization. Cooling of the dusty stream and condensed nuclei with gaseous and solid particles adhering to them also occurs due to contact with the cooled, hoarfrost surface of the blades 10.

Large and coagulated particles are rejected by the corner rotators, with the blades 10, into the dust collector 7 due to centrifugal forces.

Further, the air flow with the remaining impurities, falling on the first electrodes 3, is ionized, flushes with ions, which contribute to the effective coagulation of impurity particles and their transportation towards the walls of the gas outlet trunk 1, where they precipitate.

The air impurities that have broken through the outer troughs of the rings 17 fall into Rousseau located on the inner ledges of the dielectric insulators 4, where ionization, coagulation and transportation of particles also take place on the wall of the flue gas trunk 1, from which, under the influence of gravitational forces, they roll into the dust collector 30 7 , moreover, the guiding elements 8 prevent impurities from entering back into the exhaust duct 1. The air that has been purified from impurities enters the surrounding atmosphere.35

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The proposed tube is a tube in which, in addition to fine cleaning using an electrostatic field, mechanisms of temperature impact-40 are used.

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Editor I. Nikolaichuk

Composition 1tel V. Koshelev

Tehred L. Serdyukova Proofreader A, Ilyin

Order 3036/33 Circulation 494Subscription

VNIIPI State Committee of the USSR USSR

for inventions and discoveries 113035, Moscow, Z-ZZ, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

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VIA, inertial and centrifugal separation, as well as the mechanism of initiation of condensation and wetting of the captured particles with condensed moisture, promotes enhanced adsorption of toxic gas impurities on the wetted surface of particles, the coagulation of the latter, in addition, created by a wake with turbulence increases the gas interaction -. shaped and solid impurities, their coagulation and separation from the stream.

Claims (2)

1. Dymov pipe on avt.Sv. No. 1143932, characterized in that, in order to increase the efficiency of coagulation of gaseous and solid impurities by temperature perturbation of the medium, it is provided with a turntable placed in the gas discharge trunk in front of the electrode system, which is hollow in the form of hollow angled blades mounted for rotation on a hollow axis, the cavity of which is connected via a flexible pipe to a source of compressed air, the inner cavities of the angled blades of the turntable are connected to the cavity of an axis oc {| COROLLARY formed in the dielectric sleeve passageways and apertures in the walls of the hollow axis and Nabokovs faces of angled blades vtolneny openings. , 2. A pipe according to claim 15, characterized in that it is provided with a dust collector mounted with a deflecting element mounted in the gas exhaust pipe along its perimeter at the level of attachment of the turntable.