Regular adapter for heat-and-mass exchange apparatuses

FIELD: process engineering.

SUBSTANCE: invention relates to regular nozzles for heat-and-mass transfer process in gas (steam)-fluid system, e.g. rectification, absorption cleaning and drying of natural gas. Besides it can be used in chemical, oil-and-gas industries, etc. Said nozzle consists of stacked horizontal element formed from ceramic or plastic materials. Nozzle elements feature curvilinear surface consisting of regular conical ledges and recesses. Note jeer that round through holes are made at ledge top and recess bottom. Said ledges and recesses are staggered so that one ledge is surrounded by four recesses. Walls of said ledges and recesses are either polyhedral (eight faces). Horizontal elements are laid one onto another and jointed together so that holes at adjacent ledge holes overlap to make vertical variable-cross-section gas and fluid passages.

EFFECT: efficient operation, intensive heat-and-mass transfer.

3 dwg

 

The technical field to which the invention relates.

The invention relates to constructions of regular nozzles used for the heat and mass transfer processes in the gas (vapor) - liquid, such as a process of distillation, absorption, adsorption of natural gas, and may also find application in technological processes in the chemical, oil, gas and other industries.

The level of technology

Source [Dynarski SCI Processes and apparatuses of chemical technology, Part 2, M, Chemistry, 1995, pp.62-63] described widely known nozzle ring process", consisting of rings, the diameter of which is equal to their height. From Raschig rings can be made as a layer of regular packing, and the packing layer "pie".

The technical result is to lower the cost of the nozzle, the ease of manufacture.

In common with the proposed design of the nozzle is the presence of elements that can be stacked in regular packing layer, and the presence of round holes, through which the gas (vapor) and liquid enter the elements of the nozzle.

The design of this nozzle is not possible to fully ensure the effectiveness of heat and mass transfer processes due to uneven flow distribution, a low wettability Raschig rings when loading pie, insufficiently high specific over the spine of the nozzle, which reduces the efficiency of the nozzle and increase the overall dimensions of the machine and the packing layer of Raschig rings has a high hydraulic resistance, which leads to increased operating costs.

In the patent for useful model RU 87103 U1 B01J 19/32 (2006.01) (published: 27.09.2009) "Regular nozzle for film heat and mass transfer apparatus" describes the design of the nozzle, made of plates oriented vertically with the formation of channels, each of which has a cross-sectional view of a regular hexagon, in the three adjacent corners of which there are horizontal partitions.

The technical result consists in the simplicity of the design.

In common with the proposed design is the presence of vertical channels which move the gas with the liquid.

The lack similar to the previous version.

The closest prototype is the design of the nozzles described in patent RU 2226125 C1 "contact device for mass transfer devices. This contact device for mass transfer apparatus is composed of horizontal rows of inclined rectangular plates arranged at an angle to each other with a gap between the edges, the slits formed by the plates of the upstream row are against cracks Niger spokoinogo series between which is placed a horizontal bump, and the bump has a shape of a flat rectangular plate and the width is three times larger than the width of the slit.

In common with the proposed design is the presence of regular horizontal elements.

The lack similar to the previous version.

The objective of the invention is to provide a new high-performance regular nozzle for conducting heat and mass transfer processes.

The technical result

The technical result of the invention consists in:

- efficiency nozzles and intensity of the processes of heat and mass transfer,

- reducing the hydraulic resistance of the nozzle and the reduction of operating costs,

- reducing the overall dimensions of the apparatus and, consequently, reducing the capital cost of its manufacture.

Brief description of drawings

List of figures:

figure 1. Cut the horizontal elements of the regular packing for heat and mass transfer devices in the connection

figure 2. Top view on a flat plate with regular holes,

figure 3. The scheme of movement of gas and liquid through the nozzle

In figure 1 is the design horizontal elements of the regular packing for heat and mass transfer devices in the connection. Figure 2 shows the design of a flat plate with regular about what miles, installed between the upstream and downstream elements of the nozzle. Figure 3 provides a diagram of the movement of gas and liquid through the nozzle.

Disclosure of inventions

Eliminate these drawbacks and achieve the claimed technical result from implementation of the regular packing, designed to conduct heat and mass transfer, consisting of collected packets horizontal elements molded from ceramic or plastic, reach due to the fact that the elements of the nozzles are horizontal plate 1 having a curved surface consisting of regularly spaced conical protuberances 2 and depressions 3, and at the top of the bump and the bottom of the trench has a round cross-cutting cone-shaped holes (Fig 1). Hills and valleys are staggered so that one bulge surrounded by four depressions. Wall of conical protuberances and depressions are multifaceted (8 faces), or smoothed, as in figure 1. Horizontal elements are stacked on each other, are connected to each other so that the holes on the tops of the protuberances adjacent elements overlap each other, the formation of vertical channels with variable cross-section for the passage of gas and liquid (figure 3). For intensification of mass transfer between the elements is established horizon is capacity sheet 4 with regular through-holes of different sizes so that as shown in figure 1. A top view of the sheet 4 is shown in figure 2. The sheet 4 is fabricated from plastic or metal. In small holes of the sheet 4 between the upstream and downstream elements of the nozzle is installed with a vertical crosses (figure 3), with curved petals. This nozzle design eliminates the use of nozzles that have a horizontal plane, the lower side of which, as a rule, not wetted, which, as we know, reduces the overall wettability of the nozzle. The surface forming the offer nozzle, arranged at an angle to each other, which guarantees their wettability by the liquid on upper and lower sides.

Comparative analysis of the prototype and the claimed invention shows that the common structural feature is the presence of regularly spaced horizontal elements.

The distinguishing feature of the claimed invention is that the nozzle is collected in batches of items, which have a curved surface consisting of regularly spaced conical protuberances and depressions, and at the top of the bump and the bottom of the trench has a round through hole (figure 1).

This construction of the nozzle allows to provide a well-developed contact surface phases and high intensity heat and is of assoumani, to improve the efficiency of the nozzle, to reduce the hydraulic resistance of the nozzle and to reduce operating costs to overcome the hydraulic resistance, to reduce the overall dimensions of the apparatus and, consequently, reduce capital costs for its production.

The essence of the proposed regular packing is illustrated in the drawing (figure 1). In the nozzle used horizontal ceramic or plastic elements 1, which are superimposed on each other. The nozzle element is a molded device with a curved surface, namely the plate. The surface of the element 1 has the form of regularly spaced conical protuberances 2 and depressions 3. The truncated cones, and on top of the conical protuberance and the bottom of the conical depressions done through hole (figure 1). Hills and valleys are staggered so that one bulge surrounded by four depressions. Wall of conical protuberances and depressions are multifaceted (8 faces) or smooth as in figure 1. The height of the protuberances and the depth of the depressions depends on the required surface mass transfer. The diameter of the holes on top of the cones is determined on the basis that the free section of the nozzle should be at least 50% of the cross-section of the apparatus. Horizontal elements are stacked on each other are connected with the battle make holes in the tops of the protuberances adjacent elements overlap each other, the formation of vertical channels with variable cross-section for the passage of gas and liquid (figure 3).

For intensification of mass transfer in the holes between the upstream and downstream elements of the nozzles can be mounted device having the form of sheets with regularly distributed holes of different sizes. Small holes are vertical cross 5 (figure 2), with curved petals. Plate izgotovlivajut of plastic or metal. Mount these plates by clamping them between the upstream and downstream elements of the nozzle.

Diagram of the flow of gas and liquid is shown in figure 3. The liquid flows down through channels of variable cross-section, intensively irrigating sloping walls of the cones (figure 3). Thus, this nozzle the entire surface is irrigated. This leads to an increase in the intensity of the processes of heat and mass transfer and the efficiency of the nozzle. That, in turn, will lead to lower dimensions. In addition, the nozzle has a low gidravlicheskiy resistance due to the regularity of the elements. The gas flows upward through the same channels, interacting with the liquid on the walls of the elements and the volume of the channels (figure 3).

Device is in the form of crosses with curved walls allows you to break up the flow of gas (vapor) and liquid give them a swirling motion that increases the surface contact of the phases and the intensification of heat and mass transfer.

The implementation of the invention

Offer regular nozzle operates as follows.

The flow of gas (steam) passes upward through channels of variable cross-section formed by a horizontal elements of the nozzle (figure 3). The liquid flows from the top down. The fluid irrigates the inclined wall of the conical protuberances and depressions, forming a well-developed contact surface phases. Gas (vapor) moves upward, while periodically changing the speed of its movement due to changes in the channel cross section that contribute to the formation of vortices and intensive mixing in the gas phase. The gas passes through the same openings as the fluid. Mass transfer takes place between the gas (vapor) and liquid on the surface of the elements of the nozzle, as well as in the volume of the liquid layer. Figure 3 illustrates in greater detail the circuit of the flows of gas and liquid.

Thus, in the new design of the nozzle creates more favorable conditions for the processes of heat and mass transfer, than known similar structures.

Regular nozzle for heat and mass transfer apparatus, consisting of horizontal elements having the form of plates made of ceramic or plastic, characterized in that cell battery (included) what you're nozzles have a curved surface, consisting of regularly spaced conical protuberances and depressions, and at the top of the bump and the bottom of the trench has a round through hole, with hills and valleys are staggered so that one bulge surrounded by four depressions, and the walls of conical protuberances and troughs are smoothed, the horizontal elements are stacked on each other, are connected to each other so that the holes on the tops of the protuberances adjacent elements overlap each other, and between the upstream and downstream elements of the nozzles are set sheets with regularly spaced holes of different size, with small holes installed vertical cross with curved petals.



 

Same patents:

FIELD: process engineering.

SUBSTANCE: in compliance with first version, regular nozzle is composed of a stack of corrugated sheets made of solid or perforated sheets alternated with corrugated sheets of solid or perforated sheets with holes. Holes at made crimps extending parts facing both adjacent corrugated sheets. Distance between openings equals the pitch of crimps. Extending parts of crimps are fitted in holes of adjacent sheet so that clearances are formed between edge of said holes and said part of crimps. In compliance with second version, regular nozzle consists of the stack of sheets alternated with corrugated sheets rectangular or trapezoidal in cross-section from solid or perforated sheets in shape similar to profile of adjacent sheet. End face part of crimps between holes has a cutout.

EFFECT: higher efficiency mass exchange between gas and fluid, lower drag.

2 cl, 6 dwg

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10 cl, 1 dwg

FIELD: process engineering.

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EFFECT: perfected design.

20 cl, 4 dwg

FIELD: power engineering.

SUBSTANCE: polymer pipe of a cooling tower sprinkler comprises flat solid walls and is made in the cross section as a rectangle or a square, on the pipe walls there are serially alternating rows of ledges or indents, besides, each ledge or indent are arranged at the angle to the cross section of the pipe from 30 to 45. Besides, the pipe with rectangular or square cross section is made with rounded corners, in the longitudinal direction the polymer pipe is divided with transverse convex narrow and wide corrugations into sections, at the same time narrow and wide transverse corrugations alternate in turns, in each section there is either at least one row of ledges or at least one row of indents, besides, ledges are made twice wider than the indents, and along the pipe there is serially one section with ledges, two sections with indents, two sections with ledges and one section with indents.

EFFECT: higher intensity of heat and mass exchange with higher reliability of operation of a cooling tower sprinkler assembled from these pipes.

1 dwg

FIELD: power engineering.

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EFFECT: higher efficiency.

4 cl, 4 dwg

FIELD: process engineering.

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12 cl, 6 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.

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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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