Regular overflow head and the mass-exchange column with this head

FIELD: natural gas industry; oil-refining industry; chemical industry; devices for realization of the mass-exchange processes in the gas(vapor)-liquid systems.

SUBSTANCE: the invention is pertaining to the devices for realization of the mass-exchange processes in the gas (vapor)-liquid systems, in particular, to the absorption and to the rectifying columns and may be used in the natural gas industry, il-refining industry, chemical industry. The regular overflow head contains the packed solids made out of the punching-drawn perforated sheets. The punching-drawn perforated sheets are made rectangular and bent along the longitudinal axis of the symmetry in the form of the small corners with the apex angle making from 110° up to 130°. The small corners are arranged with their peaks upward and laid in the staggered order one over another in the horizontal rows in the framework with formation of the packed-column block module. The small corners shelves edges of the above located row are connected with the apexes of the corners of the below row. In the shelves of the small corners and along the corners shelves edges there are the perforated section-shaped holes arranged uniformly in the staggered order along the whole area of the corners shelves. Above the holes there are the salient cone-shaped visors and their peaks on each of the corners shelves are facing the same direction in parallel to the corner shelf bent line. The mass-exchange column contains the packing block modules mounted one above another in the central part of the body. In the body the horizontal segment-shaped baffle plate are mounted. At that the baffle plates are arranged along the corners of packing modules on the opposite sides of the framework with formation of the zigzag-shaped channel of the multipath crisscross stream of the vapor. As the result of it the invention allows to increase effectiveness and productivity for the gas (vapor) in the mass-exchange column in conditions of the low loading by the liquid, to expand the range of the stable operation of the column as a whole.

EFFECT: the invention ensures the increased effectiveness and productivity for the gas (vapor) in the mass-exchange column in conditions of the low loading by the liquid and to expand the range of the stable operation of the column as a whole.

4 cl, 5 dwg

 

The invention relates to apparatus for mass transfer processes in the gas (vapor) - liquid, in particular for absorption and distillation columns, and can be used in gas, chemical and refining industries.

Known mass transfer column comprising a vertical cylindrical housing supporting a distributive lattice, the packing layer on each distributive lattice, a device for redistribution of fluid under intermediate grids (MES V.M. gas Absorption. M.: Chemistry, 1970, s).

The disadvantage of this mass transfer column is the low efficiency of mass transfer due to uneven distribution of the liquid cross-sectional layer of the nozzle in the column depending on the diameter of the column and especially in large diameter columns.

Known regular nozzle for heat and mass transfer apparatus in the form of packets from the vertical corrugated sheets with inclined ribs, and in the adjacent corrugated sheets have the same but opposite angle to the vertical, and the entire corrugated surface sheets perforated horizontal rows of slots, the slot is made with curved visors on the edges and on the tops of the corrugation (SU # 1082470, CL. 01 D 53/20, 30.03.1984).

Also known regular nozzle, in which each flat part is ke completed passes in a transverse direction louvers. In some blinds edges facing up, in part, down, down, all blinds over a short distance from the fold line (EP 0492802, CL. 01 J 19/32, publ. 01.07.92).

The disadvantage of these nozzles is leaking fluid on an inclined surface of the sheets to the top of the corrugation. While all sorts of bent visors and the opposite direction of the edges of the blinds do not provide the desired effect of mass transfer. As clogging of the perforated sheets mechanical impurities in the form of corrosion products, dirt and coke quantity of vapor phase passing through the perforations of the sheets is reduced accordingly, and most of it passes through the channels between the corrugations. All this leads to a decrease in the efficiency of mass transfer.

Closest to the invention in the part of the nozzle as the object of the invention is regular Peretola nozzle containing a nozzle body made of expanded metal perforated sheets are connected to each other to form cross-section of the diamond-shaped cavities and perechodnik channels in the joints of the sheets to each other (see SU # 679230, CL. 01 D 53/20, 15.08.1979).

The disadvantage of these nozzles is the low stability of the column at variable loads for liquid and gas, limited performance, and relatively high hydraulic resistance created by the horizontal is Itami, and the technological complexity of manufacturing the nozzle of the individual flat sheets. This ultimately leads to a decrease in the efficiency of mass transfer and increase the cost of manufacturing the nozzle.

Closest to the invention in the part of the mass transfer column as an object of the invention is a mass transfer column containing the installed one above the other in the Central part of the housing on the supporting grids nozzle block modules (see SU # 1029998, CL. 01 D 53/18, 23.07.1983).

The disadvantage of this mass transfer column is the low efficiency of mass transfer due to uneven distribution of the liquid over the cross section in the column and pass part of the vapor, bypassing the regular nozzle, thus reducing the efficiency of the process of mass transfer.

Technical problem on which the invention is directed, is increasing the efficiency and productivity (pair) mass transfer in the column under conditions of low load of the liquid, the expansion of the range of stable operation of the column as a whole.

The specified task in the part of the nozzle, as the object of the invention is achieved due to the fact that regular Peretola cap includes a cap body made of expanded metal perforated sheets are connected to each other to form cross-section of the diamond-shaped cavities and PE is mocnych channels in the joints of the sheets to each other, expanded metal perforated sheets are made rectangular and bent along the longitudinal axis of symmetry in the form of corners with the angle at the vertex, component 110° to 130°the corners are up peaks, with the parts arranged in staggered to each other in horizontal rows in the frame with the formation of the nozzle block of the module edges of shelves corners upstream of a number of parts connected with the vertices of the corners of the lower row in the shelves in the corners and along the edges of shelves over an expanded metal made sectoriality holes, spaced evenly in a checkerboard pattern over the entire area of the shelves over, over holes hood made convex conical peaks, and the peaks of the cone-shaped peaks on each of the shelves corners turned in one direction parallel to the fold line of the area, and the area of the bore of each cutting holes is (0,7-0,8)·10-4m2and the ratio of the living section of shelves corners, i.e. ratio of the total area of the holes in each shelf corner of the square shelf area is from 0.35 to 0.4.

Collected in block modules corners can be connected to each other by spot welding.

Conical roofs on adjacent shelves corners can be directed in opposite directions.

The specified task in the Asti columns as the object of the invention is achieved by what mass transfer column contains the installed one above the other in the Central part of the housing on the supporting grids nozzle block modules, when installed in the housing horizontal segmental baffles, paired along the chord of the segment with frame Packed block module according to claim 1 and by an arc of a circle with the wall of the housing, while the partitions are located along the corners of the Packed modules from opposite sides of the frame with the formation of the zigzag channel multi-pass cross-flow of steam.

The research work of mass transfer columns with regular peritonei nozzle was found that the proposed construction of a regular peritonei nozzle (RPN) of the perforated exhaust sheet (BES) in combination with a film dispenser fluid allows the direction of movement of the contacting phases in consumption current. Fluid flow occurs from the top down under the forces of gravity on the surface of the Packed bodies formed of expanded metal sheets, with part of the liquid flows through the cutting hole BES and wets the lower surface. The upward steam flow, moving in the volume of the Packed block module is divided into two streams. Part of the gas moves along the horizontal channels (cross-current)formed diamond is prominent cavities between the expanded metal perforated sheets, bent to form corners, and the other part is raised by cutting holes in the shelves corners, flowing from one horizontal channel to the other (counter-current). In the mixed current of the contacting phases significantly increases their dynamic interaction and, as a consequence, the intensity of mass transfer. In addition, the flow of the liquids on the bottom surface of the shelf corners provides complete their wettability.

The above-described movement of steam inside the Packed block module formed of BES that allows you to organize the movement of the rising column of steam in the form of two streams, one of which moves upward, as noted above, cutting through the holes of BES and the other moves in a zigzag channel formed horizontal segmental partitions and horizontal channels formed diamond-shaped in cross-section cavities. It was found that when performing the cross-section area of each cutting holes, component (0,7-0,8)·10-4m2, the coefficient living section of shelves corners, i.e. the ratio of the total area of the holes in each shelf corner of the square shelf area of 0.35 to 0.4, and expanded metal perforated sheets are rectangular and bent along the longitudinal axis when metrie as corners with the angle at the vertex, components 110° to 130°, with the location of the corners up tops in combination with the above described movement of liquid and vapor through the nozzle block modules reduces the hydraulic resistance of the Packed block module, which allows to increase the load on the pair, excluding the possibility of a critical mode of operation of the column, namely the freezing of the liquid.

BES is made of sheet steel by stamping. Material for its production is sheet steel with a thickness of 0.8-1 mm, the Defining parameters of BES used for the manufacture of the modules are: the area of the bore of each of the cutting holes ƒ0and the coefficient living section.

In a film flow of irrigating fluid on the surface of the BES in the direction transverse to its longitudinal axis, there are effects that determine the magnitude of the impact factor of the surface and increase the efficiency of the modules. We are talking about the following.

During stamping BES happen to plastic deformation and local destruction of the blank, and it can cause embryonic cracks and the occurrence of pores between grains of the metal structure. Arising embryonic cracks and pores on the surface improve the adsorption activity of BES, which promotes wetting and R is the runoff of hydrophilic liquids (wetting angle less than 90° ) on the surface of the sheet.

When the current on the surface of BES film stream meets a significant number of local hydraulic resistances: projections and undulating curves on the surface of BES, in particular a cone-shaped expanded metal screens over the holes and breaks the surface of BES, formed during the stamping, which causes the splitting and merging of jets of liquid on the surface of BES. There is a flow of fluid through the cutting hole and mixing of the streams flowing on opposite sides of BES. Overcoming these resistances flow is the formation of zones of change of pressure and a lot of vortices (perturbations) in the flow stream (film) of a liquid. The vorticity of the fluid flow causes a breakdown of the orderly laminar film and the emergence of artificial turbulence in the flow. The combination of artificial mechanisms of turbulence and wave generation with a thin layer of the liquid phase flowing on the surface of BES, leads to a significant intensification of the processes of heat and mass transfer.

In conditions of high density of irrigation, thanks to the work of the forces of cohesion around the liquid expanded metal openings and their cone-shaped roofs, the formation of the liquid film. The liquid film to partially overlap the cutting of holes, which, on the one side the us, leads to an increase of the free surface of the liquid phase and, accordingly, the actual contact surface phases, and on the other, increases the hydraulic resistance for the steam rising through the cutting window at the beginning of bubbling.

The strength of adhesion arising from the good wettability of the material surface of BES, provide an irrevocable for film flow at high angles of BES to the horizon. The angle of inclination to the horizontal shelf area of BES, which reached steady flow regime of film flow is from 25° to 35°. This allows you to compose nozzle block modules with more specific contact surface and reduce the likelihood of entrainment of liquid by the steam flow.

When the flow on a flat surface film flow under the action of surface forces tends to curl up in a jet, for him on the surface of BES observed spreading of the liquid, and when the direction of current flow along the transverse axis, there is some offset to the flow axis in the direction of the longitudinal axis of BES. Therefore, when assembling the nozzle unit should be installed nozzle body in a series so that the longitudinal axis of BES they had sent in the opposite direction than the nozzle bodies lying above and below rows.

Figure 1 presents the issue is a rule-extraction sheet Packed block module regular peritonei nozzles, figure 2 presents a longitudinal section of a mass transfer column, figure 3 presents schematically a cross-section of part of the nozzle block module, figure 4 presents the side view of the Packed block module and figure 5 presents the cross-section a-a in figure 2.

Regular Peretola cap includes a cap body made of expanded metal perforated sheets 1 are connected to each other to form in cross section rhombic cavities 2 and perechodnik channels in the joints of the sheets to each other. Expanded metal perforated sheets 1 made rectangular and bent along the longitudinal axis of symmetry in the form of corners with angle α at the top, pillars 110° to 130°. The corners are up peaks, with the parts arranged in staggered to each other in horizontal rows in the frame 3 with the formation of the nozzle block of the module. Edges 4 shelves over the above places connected with the vertices of the corners of the lower row. In shelves, corners and along edges 4 shelves over an expanded metal made sectoriality holes 5, spaced evenly in a checkerboard pattern over the entire area of the shelves over. Over holes 5 hood is made convex conical peaks 6 and conical peaks visors 6 on each of the shelves corners turned in on the well side of the parallel fold lines area, the area ƒ0bore of each cutting holes 5 is (0,7-0,8)·10-4m2and the coefficientliving section of shelves corners, i.e. ratio of the total area of the holes in each shelf corner of the square shelf area is from 0.35 to 0.4.

Collected in block modules corners can be connected to each other by spot welding.

The cone-shaped visors 6 on the adjacent shelves corners can be directed in opposite directions.

Mass transfer column contains the installed one above the other in the Central part of the housing 7 on the supporting grids 8 nozzle block modules 9, the housing 7 has a horizontal segmental baffles 10 paired along the chord of the segment with the frame 3 of the nozzle block 9 according to claim 1 and by an arc of a circle with the wall of the housing 7. Partitions 10 are located along the corners of the nozzle block 9 from opposite sides of the frame 3 with the formation of the zigzag channel multi-pass cross-flow of steam.

Specific contact surface of each of BES average of 1,527 m2/m2; the weight of one square meter of BES ˜5 kg. Determining the overall size of BES is the width of P, which ranges from 110 to 120 mm, predominantly 115 mm

Cutting the hole is ment 5, lying on the line of the edges 4, ensure the flow of irrigating fluid to lower the number of nozzle block module. BES, usually interconnected in nozzle block modules using spot welding. On the top row of BES 1 nozzle block module 9 right next to it is set film liquid distributor 11 which is attached to the frame 3 by means of bolts. Figure 2 and 3 arrows shows the flow of the gas and liquid phases.

Segment volumes casing 7, not filled the Packed block modules 9 used to create the gas passages 12 a zigzag multi-way cross-motion vapor phase on the horizontal channels formed BES. Horizontal partitions 10 are mounted close to the nozzle block to the module 9. Horizontal partitions 10 are attached on one side to the walls of the housing 7 of the column and the other end to the beam 13 that is associated with the frame 3 of the nozzle block module 9. In addition, it is advisable to run the column with support beams (not shown)made of unequal angle bars, one shelf overlying adjacent to the horizontal partition 10 horizontal channels, excluding gas breakthrough at the junction of the septum 10 module 9. The number of horizontal partitions (distance between them) depends on the Isla moves steam flow through the nozzle block module 9. In this construction, the columns of steam flow moves two conditional flow is counter-current, cutting through the holes 5 in sty 1, and the horizontal channels (diamond-shaped cavities 2) modules 9.

Mass transfer column is as follows.

Gas (vapor) enters the body 1 of the column from the bottom and moves upward, passes through the supporting bars 8 and flows in a horizontal channel formed diamond-shaped cavity 2. At the same time through film liquid distributor 11 in nozzle block module 9 receives irrigating fluid. Fluid flow occurs from the top down under the forces of gravity on the surface of the Packed bodies of expanded metal sheets 1, with part of the liquid flows through the cutting hole 5 BES and wets the lower surface of the sheet 1. The upward steam flow, moving in the volume of the Packed block module 9, is divided into two streams. Part of the gas (steam) moves along the horizontal channels (cross-current)formed diamond-shaped cavities between 2 expanded metal perforated sheets 1 in the form of corners and connecting passages 12 formed by a horizontal partition 10, and the other part is raised by cutting holes 5 shelves in corners, flowing from one horizontal channel to the other (counter-current).

The result is in radostnoe distribution of the flow of gas (vapor) and liquid in the ranks of the module 9, and maximizes the efficiency of transfer by contact of vapor and liquid.

In a mass transfer column may be mounted one above the other multiple nozzle block modules 9. Therefore, the gas (steam), which came out of the downstream module 9, enters the upstream module 9, where it repeats the above process of interaction of gas (steam) with irrigating fluid upstream module 9.

The present invention can be used in petrochemical, gas and other industries and, in particular, in mass transfer columns, intended for carrying out processes of absorption, distillation, washing gases and other heat and mass transfer processes.

1. Regular Peretola nozzle containing a nozzle body made of expanded metal perforated sheets are connected to each other to form cross-section of the diamond-shaped cavities and perechodnik channels in the joints of the sheets to each other, wherein the expanded metal perforated sheets are made rectangular and bent along the longitudinal axis of symmetry in the form of corners with the angle at the vertex of from 110 to 130°the corners are up peaks, with the parts arranged in staggered to each other in horizontal rows in the frame with the formation of the nozzle nl is knogo module, edges of shelves corners upstream of a number of parts connected with the vertices of the corners of the lower row in the shelves in the corners and along the edges of shelves over an expanded metal made sectoriality holes, spaced evenly in a checkerboard pattern over the entire area of the shelves over, over holes hood is made convex conical peaks, and the peaks of the cone-shaped peaks on each of the shelves corners turned in one direction parallel to the fold line of the area, and the area of the bore of each cutting holes is (0,7-0,8)·10-4m2and the ratio of the living section of shelves corners is from 0.35 to 0.4.

2. The nozzle according to claim 1, characterized in that the raised block modules corners are connected by spot welding.

3. The nozzle according to claim 1, characterized in that the cone-shaped peaks on adjacent shelves corners in opposite directions.

4. Mass transfer column containing the installed one above the other in the Central part of the housing on the supporting grids nozzle block modules, characterized in that the body is equipped with a horizontal segmental baffles, paired along the chord of the segment with frame Packed block module according to claim 1 and by an arc of a circle with a wall of the housing, while the partitions are located along the corners NAIDOC the modules from opposite sides of the frame with the formation of the zigzag channel multi-pass cross-flow of steam.



 

Same patents:

FIELD: oil-processing industry; chemical industry; production of the spiral heads for the heat-mass exchanging and simultaneous with them reaction processes.

SUBSTANCE: the invention is mainly pertaining to the oil-processing industry and chemical industry. The spiral head made in the form of the sequential rows of the spirals is installed in the packet in parallel to each other and to the flow in compliance of the dense location scheme. The adjacent and sequential spirals may be of the similar or counter rotation type. The sequential spirals are not necessary coaxial. Such location allows to form the oncoming or following movement of flows between the parallel spirals, that increases the turbulization and promotes stabilization of distribution of the dispersion particles according to their section and also to optimize selection of the design of the packet for the particular conditions of the process. The invention provides for manufacture of the layers of the spiral head by the strain of sheets, that makes it possible to organize its mass production in the wide range. Uniqueness of the spiral head ensures the effective interaction of the phases in their three possible relative movements: the direct-flow, the counter flow and the pseudo-liquefied flow.

EFFECT: the invention ensures manufacture of the layers of the spiral head by the strain of sheets, that that makes it possible to organize its mass production in the wide range and the effective interaction of the phases in their relative movements - the direct-flow, the counter flow and the pseudo-liquefied flow.

11 cl, 22 dwg

FIELD: petrochemical industry; equipment for separation and the mass-exchange apparatuses.

SUBSTANCE: the invention is pertaining to the field of petrochemical industry, in particular, to the regular nozzle for the separation and mass-exchange apparatuses. The regular nozzle for separation and the mass-exchange apparatus is pertaining to the designs of the regular nozzles intended for realization the heat-mass-exchanging and separation processes in the system gas (steam)-liquid. The nozzle contains the turned relatively to each other packets of the sheets with the slant corrugations or the porous prominences crossing in the adjacent sheets. At that and the porosity of the prominences and/or the sheets in the packets is diminishing in the nozzle towards the gas outlet. Besides the prominences and/or the sheets of the packets are made on the gas inlet into the nozzle out of the hydrophilic material, and on the outlet of the nozzle - out of the liophilic material, and the ratio of the pores sizes of the prominences and/or of the sheets of the packets on the inlet and the outlet of the gas are proportional to ratios of the surface tension of the separable liquids in the power of 0.5. The invention allows to up-grade efficiency of the processes of the heat-and-mass exchange and separation by reduction of carryover of the liquid with the increased gas productivity.

EFFECT: the invention allows to up-grade efficiency of the processes of the heat-and-mass exchange and separation by reduction of carryover of the liquid with the increased gas productivity.

3 cl, 1 dwg

FIELD: oil and gas industry.

SUBSTANCE: regular nozzle comprises stack of sheets provided with sloping corrugations or projections. The perforated members are interposed between the sheets. The sheets and/or the perforated members interposed between them are provided with flow swirlers that define perforation. The axes of the swirlers are vertical. The swirlers can be defined by woven grid. The members may be provided with corrugations that intersect with the corrugations or projections on the sheets. The corrugations of the members are smaller than corrugations or projections on sheets. The swirlers are made of slots, and members are interposed between the sheets in pair.

EFFECT: enhanced efficiency.

4 cl, 10 dwg

FIELD: separation.

SUBSTANCE: method comprises uniform distribution and supply of gas-liquid mixture to the structurized members with macroscopic and microscopic structures, impregnating the surface of the members with the liquid to be separated, collecting liquid on the surfaces of the structures, and discharging liquid and gas separately. The liquid in gas phase is converted into the liquid phase by reaching the phase thermodynamic equilibrium of the mixture.

EFFECT: enhanced efficiency.

3 cl, 3 dwg

FIELD: petrochemical industry; oil-refining industry; chemical and other industries; devices for realization mass-exchange processes in the column apparatuses.

SUBSTANCE: the invention is pertaining to the devices for realization of mass-exchange processes in the column apparatuses used both in the systems of a liquid-liquid type and in the systems of a vapor-liquid type and may be used in petrochemical, oil-refining, chemical and other industries. The mass-exchange head includes a row of rectangular platesinclined to each other at an angle with a flanging towards to each other in the upper part of the plates. The rectangular plates of no more than 1 mm thick are made with a perforation in the form of a louver gauze, in which the slit louver holes have a width S equal to 0.3-0.5 mm and with a step equal to no more than the thickness of the plates, with an inclination at an angle α equal to 30-45°, the ratio of the plate length 1 to its width S - from 13 up to 25, a direction of the louver channels to the horizontal axis of coordinates at an angle β equal to 30-45° and with the spacing interval between the louver channels of 1-2 mm. The flangings are facing each other are connected among themselves without a clearance and form a blind bin with the overflow slats in height of no less than the values of a water seal. The inclined rectangular plates with the perforation in the form of a louver gauze in vertexes of the lower angles are connected by the blind plates, which form among themselves a drain branch pipe dipped into the blind bin with the overflow plates of the below lying row of the inclined plates. The advantage of the offered design of the mass-exchange head is expansion of the range of its stable operation at a high efficiency of the mass exchange both in the systems of the liquid -liquid type and in the systems of vapor-liquid type.

EFFECT: the invention ensures expansion of the range of the mass-exchange head stable operation at a high efficiency of the mass exchange both in the systems of the liquid -liquid type and in the systems of vapor-liquid type.

2 cl, 5 dwg

FIELD: chemical industry; petrochemical industry; heat-and-power engineering and other industries.

SUBSTANCE: the invention is pertaining to distributing-contacting devices for the mass-exchange devices and may be used in chemical industry, petrochemical industry, heat-and-power engineering and other branches of industry. The distributing-contacting device contains a distribution plate supplied with a screen with holes, overflow branch-pipes, overflow devices, deflecting shields, perforated truncated cones. The perforated truncated cones are made out of a sheet of no more than 1 mm thick with shutter-type splits of a width -"S" equal to 0.3-0.5 mm, and with a step not exceeding the thickness of the sheet and with an inclination in direction of the liquid motion at an angle α equal to 30-45°, the ratio of the length "1" to its width "S" is from 13 up to 25, a direction of the shutter channels to the horizontal axis of coordinates is at an angle β is equal to 30-45° and the overflow branch-pipes. At that for the packed columns on the ends of the drain branch-pipes at the calculated space intervals there are spray washers, and for plate-type columns the liquid from the drain branch pipes is fed onto an underlying sheet of a plate through a hydraulic lock. The presented distributing-contacting device ensures a high efficiency of the mass-exchange parameters in a wide range of a stable operation of packed columns and in the plate column apparatuses.

EFFECT: the invention ensures a high efficiency of the mass-exchange parameters in a wide range of a stable operation of the packed columns and the plate column apparatuses.

3 cl, 3 dwg

FIELD: chemical industry; fine gas separation from a liquid at reconstruction of separators and filter-separators of the absorbing and rectifying columns.

SUBSTANCE: the invention is dealt with the field of chemical industry and intended for fine separation of gas from a liquid at reconstruction of separators and filter-separators of the absorptive and rectifying columns. The multi-cartridge ring-type separating nozzle contains: a cover, a filtering unit, a device of water separation, an inlet connection pipe connected with the filtering unit by a pin, gas-distributing discs fixed to the pin. The filtering unit is made in the form of mesh cartridges mounted one on another. At that the internal surfaces of the mesh cartridges form a gas-distributing collector. The device of water separation is made in the form of the overflowing pipes located in the cartridges and mounted under them the drain pans with the axial apertures. Each mesh cartridge is supplied with a baffle made in the form of a plain disk with an axial aperture and a ring-type bead along the disc perimeter. Each mesh is formed by simultaneous winding of two parallel bands of the mesh, one of which is made out of a flat mesh, and the other - out of a corrugated mesh. On the side of its cylindrical internal surface a mesh cartridge is supplied with a cylindrical perforated shell. At that the first layers of the mesh band are fixed to the perforated shell by metal staples or welded to the perforated shell. At least two external layers of each mesh band are fixed by metal staples. The number of the mesh cartridges makes 6. The overflowing pipes are installed uniformly around the nozzle on a circumference, diameter of which makes from 0.85 up to 0.92 of the external diameter of the mesh cartridge and the diameter of a flow area of each overflowing pipe makes from 0.038 up to 0.05 of the external diameter of a mesh cartridge, and the total area of apertures of the shell perforation makes from 50 up to 60 % of the area of the internal cylindrical surface of the shell. In result the invention allows to increase efficiency of separation at the expense of prevention of the separated liquid accumulation in the cartridges of the nozzle.

EFFECT: the invention ensures increase efficiency of separation and prevention of the separated liquid accumulation in the cartridges of the nozzle.

2 cl, 1 dwg

Regular nozzle // 2232632
The invention relates to structures designed to conduct heat and mass transfer processes in a variety of technological devices in the system, gas (vapor) - liquid, and can find application in chemical and other industries

The invention relates to contact devices for mass-transfer apparatus, in particular for Packed columns for gas - liquid

FIELD: chemical industry; designs of the bubble-type reactors for production of 1.2-dichloroethane.

SUBSTANCE: the invention is pertaining to the design of the bubble-type reactors for production of 1.2-dichloroethane by the method of the liquid-phase chlorination of ethylene with the reaction heat removal at boiling of the working medium. As the contact device the reactor uses two layers of the metallic nozzle. The liquid 1.2-dichloroethane is fed from above to the nozzle, into the space between the layers of the nozzle feed the gaseous chlorine with nitrogen, and under the lower layer of the nozzle feed the gaseous ethylene with nitrogen, that allows to reduce the diameter of the reactor in 1.5-2 times due to the increased effectiveness of stirring and formation of the developed contact surface of the phases. At that the heat of the reaction is removed by evaporation of 1.2-dichloroethane in nitrogen. At that the temperature of the liquid is maintained below the boiling temperature. The technical result of the invention is the increased selectivity of the process, reduction of the outlet of the by-products (the highest ethane chlorides) and the decreased overall dimensions of the reactor.

EFFECT: the invention ensures the increased selectivity of the process, reduction of the outlet of the by-products (the highest ethane chlorides) and the decreased overall dimensions of the reactor.

1 ex, 4 dwg

FIELD: chemical industry; metallurgy industry; methods of the wet ash-trapping with the help of Venturi tube.

SUBSTANCE: the invention is pertaining to the method of the wet ash-trapping with the help of the Venturi tube intended for trapping of the fly ash from the flue gases of the boilers burning the solid fuel, and also may be used for trapping of the cement kiln dust in production of the cement and for the dust trapping in the metallurgical, chemical and other industries, where the ash-and-dust catchers use the Venturi tubes. The purpose of the invention is to increase the degree of trapping of the fly ash from the flue gases of the boilers with the Venturi tubes and burning the solid fuels as well as the reduction of the specific consumptions of the water and steam to increase the boilers efficiency by sprinkling of the Venturi tube with the flue gases transiting in it, the acoustic injector giving more thin and uniform atomization of the water at the decreased consumption both of the water and the steam of the sprinkler, where the acoustic field is characterized by the strictly determined frequency, intensity and the variable acoustic pressure and the steam is in the narrow temperature interval. The flue gases passing in the Venturi tube are sprinkled by the acoustic injector using the steam with the temperature of 250-350°ะก and forming in the volume of the tube the acoustic field, which is characterized by the frequency of 20-22, 36-38 or 44-48 kHz, the variable sound pressure of no less than 140 dB and the acoustic field intensity of no less than 0.5 W/cm2. The offered method, unlike the methods applied now, allows to act on the flue gases transiting in the Venturi tube simultaneously by several methods of deposition of the ash: - the acoustic method (coagulation - under action of the oscillations of the certain frequency, intensity and the variable sound pressure); humidification of the ash particles of ash in the steam-water aerosphere of the very finely sprinkled water with the full spectrum of the drops dimensions for all the sizes of the ash particles). This considerably increases the degree of trapping of the fly ash from the flue gases of the boilers at the simultaneous reduction of the specific consumptions of the water and steam and increases the efficiency of the boilers.

EFFECT: the invention ensures the increased degree of trapping of the fly ash from the flue gases of the boilers at the simultaneous reduction of the specific consumptions of the water and steam and the increased efficiency of the boilers using the solid fuel.

2 dwg, 1 tbl

FIELD: chemical engineering.

SUBSTANCE: invention relates to design of fill0in heads for mass transfer apparatuses and it car be used in heat-mass transfer processes in liquid-vapor(gas) systems, for instance at rectification, absorption, desorption, distillation a dn other processes. Proposed head member for mass transfer apparatuses has cut elements curved to circle of side surface. According to invention, head member is made in form of parallel cylinders formed by cut elements arranged in rod height, curved to circle in turn, inside and outside. Cylinders are connected by bridges and are arranged relative to each other so that their diametral planes from side surface of regular polygonal prism.

EFFECT: increased efficiency of heat-mass transfer by increasing surface of phase contact owing to reduction of drop formation and uniform distribution of phase surface in volume of heat-mass transfer apparatus.

3 dwg

FIELD: chemical industry; other industries; production of the heads for the heat-mass-exchanging apparatuses.

SUBSTANCE: the invention is pertaining to the devices of heat-mass-exchanging apparatuses with the fluidized three-phase layer and may be used in chemical industry and other industries at purification of the gas bursts of the harmful gaseous components. The head for the heat-mass-exchanging apparatuses is made in the form of the torus produced out of the cylindrical component made out of the synthetic filaments by its twisting from one or two ends. The cylinder is made out of the longitudinal filaments fasten among themselves in the staggered order with formation of the longitudinal cells. At that the diameter of the head exceeds its height in 1.25-1.33 times, and the ratio of the cell height to the diameter of the head makes 0.25-0.3. At utilization of the head the gas-liquid layer is uniformly distributed in the operation volume of the apparatus, that predetermines the stable hydrodynamic situation. At that the mass exchanging process is intensified due to the highly developed surface and the strong turbulization of the gas-liquid layer.

EFFECT: the invention ensures the gas-liquid layer uniform distribution in the operation volume of the apparatus, the stable hydrodynamic situation, intensification of the mass-exchange process.

4 dwg

FIELD: wet dust collection; chemical, textile, food-processing and light industries.

SUBSTANCE: proposed hydrodynamic dust collector has housing with inlet and outlet branch pipes, reservoir filled with liquid and provided with level indicator, phase mixer consisting of inclined blades with partitions and two layers of twin concave plates which are symmetrical relative to axis of apparatus, one central plate and sludge removal unit. Vibrator located in upper layers of liquid is secured to housing by means of elastic perforated membrane; ratio of width "a" of inclined blades to width "b" of first pair of concave plates is equal to a/b=4.0-4.5; ratio of width "b" of first pair of concave plates to width "c" of second pair of concave plates is within optimal range of b/c=1.25-1.5. Vibrator is made in form of section inscribed in sizes or liquid reservoir.

EFFECT: enhanced efficiency and reliability of dust collection process.

2 cl, 1 dwg

FIELD: absorption, desorption, dust and gas separation, drying, mixing and cooling gases.

SUBSTANCE: proposed apparatus has housing, cover, bottom, phase supply and discharge branch pipes, vortex contact device consisting of upper base, tangential plates, plate and separator, liquid distributors equipped with injectors and mounted on upper base of contact device. Horizontal disk-type partitions are mounted in height of tangential plates of vortex contact device. Horizontal disk-type partitions and upper base of vortex contact device are provided with circular slots in area of attachment of tangential plates. Circular shoulders are made on external and internal shears of disk-type partitions and on external shear of upper base of vortex contact device. Separator is made in form of truncated taper ferrule; diameter of lower shear of this ferrule is equal to 0.75-0.9 of inner diameter of vortex contact device. Number of vortex contact devices ranges from 1 to 3. Distance between upper base of vortex contact device and lower shear of separator is equal to 0.3-1.0 of inner diameter of vortex contact device.

EFFECT: enhanced efficiency of heat and mass exchange of vortex apparatus at high loads in gas and liquid phases.

3 cl, 5 dwg

FIELD: separation.

SUBSTANCE: conical ejecting scrubber comprises housing with branch pipes for dusted and cleaned gas, nozzle spraying device, bearing and arresting plates, nozzle interposed between the plates, and device for discharging slime. The bearing plates are flexible, and the nozzle is mounted above the bottom bearing plate and is made of flexible materials in the form of polyethylene balls. The bottom bearing plate is provided with vibrator. The nozzle can be made of hollow balls, whose spherical surfaces are provided with screw groove, or toroidal rings.

EFFECT: enhanced efficiency and reliability and reduced metal consumption for manufacturing.

7 cl, 4 dwg

FIELD: separation.

SUBSTANCE: conical scrubber comprises housing with branch pipes for dusted and cleaned gas, nozzle spraying device, bearing and arresting plates, nozzle interposed between the plates, spray trap, and device for discharging slime. The bearing plates are flexible, the nozzle mounted above the bottom bearing plate is made of a flexible material, and the bottom bearing plate is provided with the vibrator. The nozzle can be made of polyethylene balls or hollow balls whose spherical surface is provided with the screw groove.

EFFECT: enhanced efficiency and reliability and reduced metal consumption for manufacturing.

7 cl, 4 dwg

FIELD: separation.

SUBSTANCE: centrifugal gas washer comprises housing, branch pipe for supplying dusted gas, branch pipe for discharging cleaned gas, spraying device, swirler, device for smoothing the flow, and slime collector. The spraying device is made of a hollow cylindrical chamber closed from one of the sides and having tangential longitudinal groove for discharging of fluid. The spray trap is mounted downstream of the means for smoothing the flow. The direction of swirling of the gas outflowing from the swirler is counter to that of the sprayed fluid outflowing from the spraying device.

EFFECT: enhanced efficiency and reliability.

1 dwg

FIELD: separation.

SUBSTANCE: centrifugal scrubber comprises housing, branch pipe that is used for supplying of dusted gas and is provided with rotating gate, branch pipe that is used for discharging the cleaned gas and is provided with blades for smoothing the flow, spraying device provided with means for supplying fluid through the bottom pipe, and slime collector. The spraying device is made of a hollow cylindrical chamber that is closed from one side and has tangential longitudinal groove for fluid discharging. The direction of swirling the gas outflowing from the tangential inlet is contrary to that of the fluid sprayed from the spraying device.

EFFECT: enhanced efficiency and reliability.

1 dwg

FIELD: separation.

SUBSTANCE: conical ejecting scrubber comprises housing with branch pipes for dusted and cleaned gas, nozzle spraying device, bearing and arresting plates, nozzle interposed between the plates, and device for discharging slime. The bearing plates are flexible, and the nozzle is mounted above the bottom bearing plate and is made of flexible materials in the form of polyethylene balls. The bottom bearing plate is provided with vibrator. The nozzle can be made of hollow balls, whose spherical surfaces are provided with screw groove, or toroidal rings.

EFFECT: enhanced efficiency and reliability and reduced metal consumption for manufacturing.

7 cl, 4 dwg

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