Regular nozzle for heat and mass transfer apparatus

 

Regular nozzle for heat and mass transfer apparatus refers to the regular structures of nozzles that are designed to conduct heat and mass transfer processes in the gas(vapor) - liquid, and can find application in gas, petrochemical and other related industries. The nozzle contains a bundle of sheets with protrusions in the form of a flexible sheet arranged at an angle to the vertical offset from each other and directed at the surfaces of the sheets facing each other in intersecting directions. The tabs are made of a single harness, which in places of connection protrusions are made flat and alternately secured in the upper and lower parts of the leaf. Fastening a flexible harness to the sheet is performed by resistance welding with the provision of its compression in the plane of the sheet or sheets provided with cuts, angled gaps are hosting a flexible harness, and compression and fastening harness made with the alignment notches in the plane of the sheet. The invention provides a reduction in the manufacture of the nozzle by simplifying its design. 3 C.p. f-crystals, 6 ill.

The invention relates to constructions of regular nozzles, designed for holding Talmage other related industries.

Known regular nozzle. C. 1373424 from 28.05.86,, CL 01 D 53/20), which includes sheets with corrugations oriented at an angle of 15-45oto the vertical, and with the additional corrugation forming with the main corrugation angle 75-100o. The ratio of the height of the additional ribs to his step is 0.08 to 0.2, which allows to intensify the process of heat transfer due to improved terms of redistribution of fluid in the volume of the Packed layer.

The disadvantage of these designs is that to perform corrugated plates must have stamps, rolls specific configurations to obtain bumps and additional relief for achieving the required specific surface area of the plates. This requires additional effort, which in turn increases the cost of the nozzle.

Known regular nozzle for heat and mass transfer apparatus (patent RF 2113900 from 27.06.98., class. B 01 J 19/30, prototype), containing the packages drawn from parallel sheets with tabs, which are located at an angle of 25-45orelative to the vertical and is directed at the surfaces, facing each other, in opposite directions, and the projections made in the form of a flexible cord made of knitted mesh sleeves, stacked on each of the above disadvantages, however, the mechanization or automation of the process of laying (winding) wiring harness on the sheet or strip along a helical line requires technological operations of rotation of the sheets or the rotation of the coil from the harness around the leaves, in addition, to provide the desired angle of inclination of the projections and prevent direct failure of the fluid in the known device requires a few turns when winding harness, which complicates the design of the nozzle, the technology of its manufacture (especially for long lists) and increases the complexity.

The purpose of the invention is to reduce labor costs in the manufacture of the nozzle by simplifying its construction.

The objective is achieved by the fact that in regular nozzle for heat and mass transfer devices containing a package of sheets of protrusions in the form of a flexible sheet arranged at an angle to the vertical offset from each other and directed at the surfaces of the sheets facing each other in an intersecting direction, the protrusions are made of a single harness, which in places of connection protrusions are made flat and alternately secured in the upper and lower parts of the leaf, as well as the fact that the package of sheets with the projections made in the form of a cylindrical helix with the same pitch between adjacent wiring, and the fact that Kristy provided with notches, in unbent gaps are hosting a flexible harness, and compression and fastening it made when aligning (reverse fold) incisions are made in the plane of the sheet.

The execution of the nozzle is thus possible to simplify and reduce the cost of manufacture by eliminating the operation of laying the harness on each sheet along a helical line, i.e., to eliminate the need for rotation of the sheet or harness around the sheet. The proposed cap may be made of metal, polymer, mesh, or other porous roll band with the laying on it alternately on each side of the flexible harness directly from the coil (bobbin) and mount it to the sheet receiving any step between the tabs when changing the diameter of the harness, which gives the possibility of obtaining different specific surface of the nozzle, and can be done with the packet is received in the form of a cylindrical helix with the same pitch between adjacent coils.

The applicant is not known from the existing prior art nozzles, which simplify the design, reduce labor costs when production was achieved in this way.

In Fig. 1 shows a package of the Packed item from a sheet with protrusions formed flexible harness, wrapped in Retsa bulk package tips.

In Fig. 3 shows a flat nozzle element is a top view of mount harness contact welding.

In Fig. 4, 5, 6 - option of fixing the harness in the sheet by means of notches along one edge.

The nozzle (Fig. 1) includes the sheet 1 is wound on itself or on a remote socket with the formation of a cylindrical package 2, remote elements between the turns of the spiral are the wiring forming protrusions 3, providing a step between the sheets, approximately equal to two diameters of the loom.

The angle of the harness to the vertical is usually chosen in the range of 25-45o.

Depending on the diameter of the cylindrical nozzle can be made by winding two or more sheets at the same time, with the first stage it is advisable to wrap around a cylindrical pipe.

The nozzle in the form of a polygonal packages recruited from flat sheets 1 (Fig. 2), in which each side in a different direction "snake" stacked flexible wiring forming protrusions 3.

Alternately the top and bottom of the wiring sheet 1 (the tabs) 3 fixed on the sheet. Mount harness 3 to the sheet 1 is made, or by using the contact welding 6, providing a compression in the plane of the sheet (Fig.3), or by placing the harness in angled gaps formed by the alignment (reverse Olney flat. Each sheet 1 nozzle with wiring (projections) 3 forms with the adjacent sheets overlapping channels 9 for the passage of gas and liquid.

To increase the specific surface area of up to 10-15% of the sheets may be perforated.

Structured packing is as follows.

The liquid phase is distributed and fed to the upper end of the nozzle and flows in a thin film on the surface of the sheets 1 and ledges (harness) 3, interacting with an ascending stream of gas (steam), rising by intersecting channels 9. Protrusions in the form of a flexible wiring harness 3, made of knitted sleeves, from the action of the gas stream vibrate with an amplitude of natural oscillations, create turbulence of the liquid film, contributing to the runoff liquid is forced down and improving performance of the nozzle and its effectiveness, and efficiency of separation of the liquid, excluding its accumulation on the nozzle and ash from the gas stream.

The offered nozzle is easy to manufacture, requires no special stamps, has a minimum specific consumption of materials, as it can be made of ribbon (strip) with a minimum thickness and may be different in specific surface area due to density changes, the diameter of the harness or step between the tabs.

2. Regular nozzle under item 1, characterized in that the package of sheets with the projections made in the form of a cylindrical helix with the same pitch between the coils.

3. Regular nozzle under item 1, characterized in that the fastening of the flexible harness to the sheet is performed by resistance welding with the provision of its compression in the plane of the sheet.

4. Regular nozzle under item 1, characterized in that the sheets are provided with cuts, angled gaps are hosting a flexible harness, and compression and fastening harness made with the alignment notches in the plane of the sheet.

 

Same patents:

Multilayer nozzle // 2224590
The invention relates to the field of petrochemical and gas industry, in particular to the separation, the contact and separation nozzles of heat and mass transfer apparatus, and can be used in the processes of contact between phases, mainly in:

- gas-liquid separators,

the separators immiscible liquid mixtures, predominantly horizontal type

The invention relates to contact devices mass-transfer apparatus and may find application in gas, petrochemical and related industries in the implementation of mass transfer processes for gas-liquid, liquid-liquid, liquid-solid, for example by distillation, Stripping, washing, dissolving, mixing

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

The invention relates to a contact plate that is used for gas absorption liquid

The invention relates to nozzles of heat and mass transfer devices for gas (vapor) - liquid and can be used in column apparatus for carrying out processes of absorption, desorption, rectification and dehydration or purifying gases in the chemical, gas, petrochemical and allied industries

The invention relates to nozzles for heat and mass transfer devices and can be used in chemical, oil refining and other industries in distillation processes, extraction and sorption processes

The invention relates to constructions batch of nozzles for heat and mass transfer apparatus used for carrying out processes of absorption, desorption, wet dust removal chemical, petrochemical, power, steel and other related industries

The invention relates to constructions of regular nozzles designed to conduct heat and mass transfer processes in the gas (vapor) - liquid, can find application in chemical, petroleum, gas and other related industries

The invention relates to internal devices of chemical reactors for carrying out processes in gas-liquid environments and can be used, for example, for the synthesis of urea from ammonia and carbon dioxide at elevated temperatures and pressures

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

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: 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: 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: 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: 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-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: 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

FIELD: chemical industry; petroleum industry; natural gas industry; other industries; production of the nozzles used in the processes of the natural gas rectification, absorption, purification and dehydration.

SUBSTANCE: the invention is pertaining to designs of the regular nozzles, which are used in the processes of the natural gas rectification, absorption, purification and dehydration and also as the mixers of the liquid and gaseous streams as the separators of the phases in the separation devices, as the contact elements in the condensers of mixing, as the sprinklers of the water cooling towers and may find usage practically in all production processes in petroleum, gaseous, chemical and other allied industries. The regular nozzle consists of the corrugated plates gathered in packages installed vertically and in parallel with the inclination of the flutes of the adjacent sheets to the horizon in the opposite sides, contacting by the protruding flutes to each other and forming among themselves the free channels of the complicated geometrical form. The nozzle is supplied with the spacers made in the form of the block of the horizontally laid in the rows in parallel to each another volumetric components. At that the symmetry axes of the components laying in the adjacent in height rows are mutually perpendicular. The ratio of the height of the package consisting of the corrugated sheets to the height of the spacer block lays within the limits of 2-5. The total height of the block of the spacers lays within the limits of 1.0-4.0 equivalent diametersof one component. The equivalent diameter of channels of the corrugated sheets package and the equivalent diameter of the component of the block of the spacer are in the ratio of 0.4-0.8. The components of the block of the spacer represent the solids of revolution, which are made in the form of the multiple-thread helicoids, at that the number of the threads makes 2-4. The components of the spacer block are laid in the rows with the clearance to each other, at that the interval, which separates the symmetry axes of the adjacent components makes 1.7-2.5 diameters of one component. The invention allows to raise intensity of the processes of the heat- and mass-exchange due to turbulization of the gas streams and redistribution of the liquid.

EFFECT: the invention ensures the increased intensity of the heat-exchange and mass-exchange processes due to turbulization of the gas streams and redistribution of the liquid.

4 cl, 2 dwg

FIELD: separation of materials.

SUBSTANCE: nozzle comprises stacks made of vertical sheets provided with projections that define the sloping passages between the sheets for flowing the phases. The sheets of at least one pair of the stacks are coated with porous belts made of polymeric materials. The porous belts are connected with a source of positive charges.

EFFECT: enhanced efficiency.

3 cl, 4 dwg

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