SU1368005A1 - Apparatus for processing gas - Google Patents

Abstract

The invention relates to gas cleaning and dust collection, can be used to clean gases from dust and utilize their heat, and allows to reduce liquid consumption and evaporation and to increase the degree of heat utilization of the gases being cleaned while increasing their consumption by making the rotor in the form of heat exchange tubes fixed with a cantilever fan. with curved ends and provided with holes, with twists placed in them, as well as

Description

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Write the functionality of the device. The apparatus includes a housing 1, a water chamber 4, a hollow impeller 21 with an accumulator 20 on which heat exchange tubes 17 are fixed, and a filtering element 19 is freely located on the top of the bottom of the fluid collector 5 and a cylinder 12 is fixed around its perimeter.

with holes 14 and an annular confuser 15. The passage through the device, the gas is cleaned of dust and at the same time the process of heat utilization of the purified gases occurs, which increases with increasing gas consumption due to the simultaneous increase of the gas passing through the device. amount of fluid. 1 3. Clause f-ly. 3 il.

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The invention relates to gas cleaning and dust collection and can be used to clean high-temperature gases from pypi and utilize the heat contained in them, as well as in devices for cooling gases with liquid (heat exchangers).

The purpose of the invention is to reduce the liquid consumption for evaporation, increase the degree of heat utilization of the purified gases while increasing their consumption, expanding the functional capabilities of the apparatus (cleaning the gas from dust).

Fig. I is a schematic diagram of the device proposed; FIG. 2 shows the bent end of the heat exchange tube; FIG. in FIG. 3, view A in FIG.

The device comprises a housing 1, in the upper part of which a cylindrical insert 2 is placed coaxially, provided with an annular slot 3 and forming a gap in the form of a water chamber 4 with the housing. In the lower part of the housing 1 there is a liquid collector 5, inside which is placed a cone 6 with an inlet 7 passing through the liquid collection 5. In the lower part of the cylindrical body 1, a drainage pipe 8 is placed, in the upper part - an overflow pipe 9. In the lower part of the liquid collector 5 a water supply pipe 10 is placed, and in the upper part - an overflow pipe 11.

In the central part of the cone 6 a cylinder 12 is placed, along the perimeter of which a gas distribution disk 13 with holes 14 and an annular confuser 15 is fixed. Inside the cylindrical body there is a rotor 16, made of a cantilever fan of fixed heat exchange tubes 17 with lower ends bent in rotation, recessed beneath the surface of the liquid contained in the liquid collector 5 and provided with inlet openings 18. At the heat exchange

tubes 17 are freely placed mesh filter element 19 with the formation of sagging areas between them, attached its lower part to the heat exchange tubes 17.

The upper ends of the heat exchange tubes 17 are connected to a store 20 located in the central part of the hollow impeller 21, the ends of which are provided with tubes 22 resting freely on a float 23 made in the form of a corrugated tubular ring. I

To the mesh filter element

19 adjoins the regeneration pipe 24 with a longitudinal slit 25 formed on the side of the mesh filter element 19. The inlet openings 18 of the heat exchange tubes 17 are provided with flow swirlers 26.

The device works as follows.

Before starting work through the overflow pipe 9 and the water supply pipe 10 into the water chamber 4 and the collection

5 liquid is poured liquid up. a certain level The float 23 floats and lifts the tube 22, the hollow impeller 21 with the drive 20, mesh filter element 19 with heat exchange tubes 17,

however, their inlets 18 with swirlers 26 are immersed in the liquid. When the fan is turned on (not shown) or when creating natural draft due to the temperature difference of the gas being cleaned and atmospheric air, the gas to be purified enters through the inlet 7 and, twisting around the cylinder 12, comes out evenly through the holes 14 of the gas distribution disc 13 and the condenser 15 into the cavity formed by the mesh filter element 19. The penetration through the latter affects the gas on the hollow core 21, drives it into rotation, and with it the accumulator 20, heat exchange tubes 17 and the mesh filter element ement 9.

In this case, the gases are cleaned of dust, which accumulates on the inner surface of the screen filter element 19 and is constantly blown away by compressed air supplied through the pipe 24 and exiting through the slit 25, by continuously regenerating the rotating screen filter element 19.

Blowed off by compressed air, the captured dust gets into the inner part of the swirling flow of the gas to be purified, falls under the influence of gravity into the cylinder 12 and is removed from it as it is filled. At the same time, the burning gases washing the outer wall of the cylinder 12 transfer their heat to a layer of dust, whose temperature in the cylinder 12 is lower than the temperature of the gases being cleaned. At the same time, the liquid washing the lower part of the cylinder 40 flowing through them and, in relation to 12, removes heat from the layer of dust, which provides heat exchange and utilization not only of the heat of the gases being cleaned, but also heat recovery of the captured duster, which the efficiency of the installation, this also contributes to the rotation of the liquid in the collection of 5 liquid.

At this time, the ends of the rotating heat exchange tubes 17 bent in the direction of rotation capture liquid through the inlet openings 18, which, passing through the swirlers 26 of the flow, enters the internal cavity of the heat exchange tubes 17, making a spiral motion at their upper part due to the velocity of the fluid, arising from the rotation of the heat exchanging tubes 17 bent in the direction of rotation in the liquid.

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and also due to the subsequent decrease in volume. the weight of the fluid due to its heating and the resulting centrifugal forces in the hollow impeller 21, accelerating the movement of fluid in the heat exchange tubes 17. The intensification of the heat exchange process is promoted by the rotation of the heat exchange tubes 17, which ensures a greater contact with the gas being cleaned flow bulking, as well as due to heat transfer from the mesh filtering element 15 to the heat exchange tubes 17. The liquid is heated in this way through the tubes 22 enters the water chamber 4, from where The diverter tube 8 is removed through the device to a heating system (not shown). To maintain the required level of liquid in the water chamber 4, an overflow pipe 9 serves. As the number of gases passing through the device increases, the rotational speed of the hollow impeller 21 increases, and hence the magnitude of the centrifugal forces, allowing more fluid to flow.

30 through heat exchange tubes 17 and increasing the degree of heat utilization of the gases being cleaned. At the same time due to the distribution of sagging areas of the surface of the mesh filter element

35 19 and the filtration area increases, and the diverging curved ends of the heat exchange tubes I7 describe a larger circumference, which also provides an increase in the number of pro20

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With this, increasing the degree of heat utilization of the purified gases.

The technical and economic efficiency of the apparatus as compared with the known one is to reduce the liquid consumption for evaporation and the possibility of self-regulation of the heat exchange process when the gas flow rate changes. To move the fluid through the heat exchange tubes, the installation of the pump is not required, and the spiral movement of the fluid in the latter increases the degree of heat utilization of the gases being cleaned, therefore, increases the efficiency of the device. The increase in the degree of heat utilization of waste gases is promoted by the constant rotation and mixing of the liquid in the water chamber and collection chamber.

liquids, using a float, made in the form of a corrugated tubular ring, and curved ends of heat exchange tubes. The contacting of the screen filter element with heat exchange tubes reduces its temperature in comparison with the temperature of the gases to be purified, thus ensuring the durability of the screen filter element.

In addition, the implementation of heat exchange tubes with free ends and their cantilever fastening, as well as contacting them with a mesh filter element placed at the top of the latter, allows, when the rotational speed of the hollow impeller increases and the centrifugal forces increase, to increase the filtration area by spreading the sagging pieces of the mesh filter element due to the divergence of the ends of the heat exchange tubes. At the same time, the mentioned ends describe the circumference of the pain length, which provides an increase in the pressure in the heat exchange tubes and the volume of fluid flowing into them, as well as the speed of its passage through the line of tubes, which leads to an increase in the heat exchange process and an increase in the efficiency of the device. The heat exchange process is self-regulated depending on the change in the volume of the gas being cleaned and utilized. The device can work .and with the natural inducement of the movement of gases, which makes it unnecessary to use the puffing equipment.

In addition, the flow of hot gases collected by the dust accumulated in the cylinder and the simultaneous washing of its lower part with a liquid contribute to additional heat recovery.

The implementation of a float in the form of a corrugated ring with tubes supported freely on it allows the impeller to freely slip in the corrugated surface of the float during rotation of the impeller due to the slower rotation of the latter due to the resistance of the fluid. At the same time, the presence of corrugations on the float not only increases the resistance to its rotation in the liquid, but also provides the associated rotation of the entire thickness of the liquid in the water chamber, as well as provides alternating movement of the heat exchange tubes in the vertical plane, as a result of which periodic vibration occurs. filtering element due to its periodic separation from the heat exchange tubes, as well as the collapse of the sections of the mesh filtering element forming a free sagging surface that ultimately ensures efficient regeneration.

Claims (2)

Invention Formula I. A gas treatment apparatus comprising a housing within which an impeller and a rotor with a cone-shaped surface, a mesh element, water supply and drain pipes, a fluid collector, characterized in that reducing fluid consumption, increasing the degree of heat utilization and expanding the functionality of the apparatus by performing a cross-sectionalization function along with heat exchange, it is placed vertically and is provided with a cylindrical insert located in the upper part of the body with a gap to it, filled with liquid in the upper part of the body, and made with an annular slot in the upper part, a float placed in the gap, tubes placed on the float and communicated with the impeller, a cylinder placed in the lower part of the liquid collector, and a gas distribution disk with an annular confusor and holes located along the perimeter of the cylinder while the impeller is made with the drive liquids in the central part, the rotor is made in the form of heat exchange tubes, the upper ends of which communicate with the storage ring and are secured in it console, the bottom ends are bent with openings, equipped with twists and embedded in the collection liquid, and the mesh element is located on the heat exchange tubes , with its lower part attached to them. 2. The apparatus pop. 1, differing from the point of view of the fact that, in order to increase the efficiency of the apparatus, the float is made in the form of a corrugated tubular ring. 18 FIG. 2 WadA 26 Fi.d