Preformed packing for heat and mass exchange devices

FIELD: machine building.

SUBSTANCE: preformed packing consists of units made from vertically set corrugated plates having the corrugations with notches formed due to the shift of adjacent corrugation rows in respect to each other, the plates are mounted with a gap in relation to each other in the row of one unit and with a gap in the units adjacent by height for the value commensurable with the corrugations height. The corrugation height amounts to from 0.2 to 0.5 of the value of equivalent channel diameter de, and the value of the gap between the adjacent corrugated plates in the row of one unit amounts to from 0.6 to 0.8 of the value of equivalent channel diameter de, where de=4 ε/a, ε - packing porosity, m3/m3, a - specific surface of the packing, m2/m3.

EFFECT: complete wetting of preformed packing surface, intense turbulisation of liquid phase, high intensity of heat and mass exchange and reduced overall dimensions of a device.

7 cl, 8 dwg

 

The invention relates to constructions of regular nozzles which are used in many industries such as chemical, petrochemical, food, cryogenic, cooling tower circulating water and other industries.

The current level of technology known fill counterflow cooling tower (inventor's certificate SU 724907, publ. 30.03.80)containing interconnected with a gap vertical plate with horizontal tiered posted by slits dividing the plate into strips, with every two neighboring strips bent in opposite relative to the plane of the plate side.

The disadvantage of this device is the low efficiency of heat and mass transfer processes, given the relatively small specific surface area.

Closest to the claimed technical solution is the attachment for columns (EP 0130745 A2, publ. 09.01.85), which is accepted by us for the prototype and contains many blocks of corrugated metal plates, touching the tops of the corrugation, rotated relative to each other in height for the effective distribution of the flowing liquid and the upward steam flow over the cross section of apparatus for carrying out the process of heat and mass transfer, characterized in that the leaves have many of the same holes made for EF the objective of turbulence in the liquid film and vapor.

The disadvantage of this nozzle is that the holes reduce the specific surface of the nozzle than to cause the inevitable increase in the size of the apparatus, and furthermore does not provide intensive mixing of streams of liquid flowing over the front and back elements of the nozzle between them.

The task, which is aimed by the invention, is to increase the efficiency of heat and mass transfer by increasing turbulence in the liquid film and its mixing between the sides of the nozzle and reduce the size of the equipment.

The essence of the invention lies in the fact that the stated regular nozzle for heat and mass transfer apparatus includes placed in the apparatus blocks, made of vertically mounted corrugated plates according to the invention the difference is that the corrugations on the corrugated plates made with rents, educated at the expense offset adjacent rows of bumps relative to each other, and themselves corrugated plates are mounted with a gap relative to each other in a series of one block and gap adjacent the height of the blocks by an amount commensurate with the height of the corrugations, the height of the corrugations on the corrugated plates ranges from 0.2 to 0.5, and the magnitude of the gap between adjacent corrugated plates in a series of one block is from 0.6 to 0.8 of the value of the equivalent diameter of the channel dewhere de=4 ε/a; ε is the porosity of the nozzle, m3/m3; a - specific surface of the nozzle, m2/m3.

In addition, the differences are that:

- corrugated plate in all rows of the block can be performed with horizontal corrugations;

- corrugated plate in all rows of the block can be performed with vertical corrugations;

- corrugated plate, adjacent in the row block can be performed with alternating horizontal and vertical corrugations;

- corrugated plate in the neighbouring height of the blocks can be made and installed with a rotation relative to each other in the horizontal plane by an angle in the range of 60 to 120°;

- corrugated plate in the neighbouring height of the rows in the block can be made and installed with alternating tilt in different directions relative to the axis of the apparatus at an angle within the range from 10 to 50°;

- corrugated plate can be made with curved bends.

The technical result provided by the present set of features, is more complete wetting of the surface of the regular packing, intensive turbulization of the liquid phase, mixing the fluid flowing from both sides of the corrugated plates, and, as a consequence, high intensity, EPLO and mass and size reduction of the device.

The invention is illustrated by drawings, which depict:

Fig.1 - General view of the proposed nozzles;

Fig.2 - General view of the nozzle element, in the form of a corrugated plate;

Fig.3 - packing scheme corrugated plates in the nozzle with horizontal corrugation all rows in height of the apparatus;

Fig.4 - packing scheme corrugated plates in the nozzle with vertical corrugation in all rows the height of the device.

Fig.5 - packing scheme corrugated plates in the nozzle with alternating horizontal and vertical corrugations;

Fig.6 - packing scheme corrugated plates in the nozzle adjacent the height of the blocks are rotated relative to each other in a horizontal plane at an angle of 90°;

Fig.7 - packing scheme corrugated plates in the nozzle adjacent the height of the blocks with alternating inclination of the nozzle in different directions relative to the axis of the apparatus at an angle within the range from 10 to 50°;

Fig.8 is a diagram of a nozzle with a curved bend of the corrugated plates.

Structured packing is installed in the apparatus (not shown) in the form of several blocks of vertically mounted corrugated plates 1 having corrugations 2, which are made with the slots 3 formed by offset adjacent rows of bumps 2 relative to each other, and themselves corrugated Plaza is ins 1 is installed with a clearance of 4 relative to each other in the row block and gap 5 in the neighbouring height blocks corrugated plates 1 by an amount commensurate with the height of the corrugations 2, while the size of the gap 4 between adjacent corrugated plate 1 in the series is from 0.6 to 0.8, and the height of the corrugated plates 1 is from 0.2 to 0.5 from the value of the equivalent diameter of the channel - de,

where de=4 ε/a;

ε is the porosity of the nozzle, m3/m3;

a - specific surface of the nozzle, m2/m3.

Corrugated plate 1 in all rows can be done:

with horizontal corrugations 2;

- with vertical corrugations 2;

- adjacent in the row corrugated plate 1 can also be performed with alternating horizontal and vertical corrugations 2;

- corrugated plate 1 adjacent on the height of the blocks of the nozzles can be installed with alternating horizontal and vertical corrugations 2;

- corrugated plate 1 adjacent on the height of the blocks of the nozzles can be installed rotated relative to each other in the horizontal plane by an angle in the range of 60 to 120°.

- corrugated plate 1 adjacent on the height of the rows in the block nozzles installed with alternating tilt in different directions relative to the vertical by an angle in the range of 10 to 50°.

- corrugated plate 1 can be made with curved bends.

The proposed cap SL is blowing.

The liquid phase is applied to the upper part of the nozzle in the form of a thin liquid film flows down the surface of the corrugated plates 1 nozzles. Reverse current, forward flowing fluid, moving gas (steam) and interacts with the flowing fluid. Bumps 2 on the surface of the corrugated plates 1 give the wave nature of the flow of the liquid film, which dramatically increases the intensity of heat and mass transfer.

The presence of slots, 3 corrugated plates 1 allows the flowing fluid to flow from one side of the corrugated plate 1 to the other, thereby causing the transverse mixing of the liquid and, consequently, increase the intensity of heat and mass transfer in the liquid phase. By reducing the gap 4 between adjacent corrugated plate 1 block of the nozzle and, consequently, reduction of the free cross section of the apparatus, it is possible to achieve a high degree of turbulence in the gas phase and, consequently, increase the efficiency of processes of heat and mass transfer.

Increasing the gap 5 between adjacent height blocks of nozzles, you can create in the space created by the zone inkjet droplet of fluid flow, which increases the intensity of heat and mass transfer. Placing adjacent on the height of the corrugated plate 1 to rotate relative to each other in the horizontal plane, it is possible in order to achieve a redistribution of the liquid over the cross section of the apparatus, and turbulizing gas in the gap 5 between adjacent height blocks the nozzle, which also contributes to the intensification of heat and mass transfer.

Thus, the claimed invention allows not only to increase the intensity of heat and mass transfer processes, but also to reduce the dimensions of the equipment.

1. Regular nozzle for heat and mass transfer apparatus, comprising placed in the apparatus blocks, made of vertically mounted corrugated plates, characterized in that the corrugations on the corrugated plates made with rents, educated at the expense offset adjacent rows of bumps relative to each other, and corrugated plates are mounted with a gap relative to each other in a series of one block and gap adjacent the height of the blocks by an amount commensurate with the height of the corrugations, the height of the corrugations on the corrugated plates ranges from 0.2 to 0.5, and the value of the gap between adjacent corrugated plates in a series of one block is 0.6 to 0.8 of the value of the equivalent diameter of the channel - dewhere de=4 ε/a; ε is the porosity of the nozzle, m3/m3; a - specific surface of the nozzle, m2/m3.

2. Regular nozzle under item 1, characterized in that the corrugated plates in all rows of the block can be performed with horizontal corrugations.

3. Regular the second nozzle under item 1, characterized in that the corrugated plates in all rows of the block can be performed with vertical corrugations.

4. Regular nozzle under item 1, characterized in that the corrugated plates adjacent in the row block can be performed with alternating horizontal and vertical corrugations.

5. Regular nozzle under item 1, characterized in that the corrugated plates in the neighbouring height of the blocks can be made and installed with a rotation relative to each other in the horizontal plane by an angle in the range of 60 to 120°.

6. Regular nozzle under item 1, characterized in that the corrugated plates in the neighbouring height of the rows in the block can be performed ustanovleny with alternating tilt in different directions relative to the axis of the apparatus at an angle within the range from 10 to 50°.

7. Regular nozzle under item 1, characterized in that the corrugated plate can be made with curved bends.



 

Same patents:

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FIELD: chemistry.

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8 cl, 13 dwg

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FIELD: process engineering.

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FIELD: chemistry.

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10 cl, 1 dwg

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FIELD: power engineering.

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FIELD: power engineering.

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

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2 cl, 1 dwg

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

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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.

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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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