Regular nozzle for heat- and mass- exchange apparatus

FIELD: chemistry.

SUBSTANCE: regular nozzle contains placed in a parallel way flat disks loosely placed on a horizontal axle, with the adjacent disks being provided with fixed between them two blades, made in the form of a surface of horizontal half-cylinders, facing with its their convex part the opposite sides and forming the nozzle element. External longitudinal edges of each blade are adjoined with disks along their circle, and internal longitudinal edges of each blade are located with a centring error relative to the centre of the disks, equal to 0.1÷0.15 of the disk radius, and edges of blades are located on one axis of the disk symmetry.

EFFECT: increase of efficiency of processes of heat- and mass- exchange, simplification of the apparatus construction and reduction of energy consumption.

8 cl, 13 dwg

 

The invention relates to constructions of regular nozzles, which are used in the processes of distillation, absorption, adsorption of natural gas, as well as mixers for liquid and gas flows, as the canals of cooling towers circulating water supply systems, and may find application in almost all industrial processes, oil, gas, chemical and other allied industries.

The prior art regular structured packings company "Sulzer" (US 4643853 published 17.02.87), which is made of a vertically installed corrugated sheets in contact protruding corrugations with each other. On each of the corrugated sheets are arranged diagonally and made with holes or notches along or across them.

Also known regular structured packings for heat and mass transfer apparatus according to the patent (RU 2188706 published 10.09.02), consisting of collected packets corrugated sheets are installed vertically and parallel to the slope of the corrugation of adjacent sheets at an angle to the horizontal in opposite directions, contact protruding corrugations with each other and forming between themselves available channels of complex geometric shapes.

The disadvantages of such nozzles is that they provide a satisfactory distribution of g is gas and liquid flows only within the closed flat TV, educated parallel walls adjacent corrugated plates. When this transverse mixing in the whole of the nozzle as a whole is not provided, which decreases the efficiency of the processes of heat and mass transfer.

Closest to the proposed invention relates to rotary-film heat and mass transfer apparatus according to patent RU №2158393 published 16.02.2001), we adopted for the prototype, containing mounted on a horizontal shaft flat parallel spaced discs which are rotated by means of the drive.

The disadvantages of this design include low turbulization of the gas phase, which reduces the efficiency of heat and mass transfer, as well as giving the disks rotation through the introduction of external forces from special additional actuator, which increases energy costs and complicates the design.

The objective of the invention is to improve the efficiency of processes of heat and mass transfer by giving the cap an additional turbulent elements and ensure the effective location of the nozzle in the apparatus, and also to simplify the design of the apparatus and the reduction of energy consumption, by making the nozzle rotational motion of the internal forces.

The essence of the proposed invention is that in the regular nozzle for heat and mass the exchange vessels, containing on a horizontal shaft flat parallel spaced disks, according to the invention, a disk loosely mounted on the shaft and the nozzle is provided mounted between two disks blades, made in the form of a horizontal surface of the semi-cylinders facing its convex part in opposite directions and forming the nozzle element, while the outer longitudinal edge of each half is associated with the disk on its circumference, and the inner longitudinal edge of each half is located eccentrically relative to the center of the disk is equal to 0.1÷0.15 radius of the disc, the edges of the blades are located on the same axis of symmetry of the disk.

According to the invention, the nozzle may be designed in such a way that the elements of the nozzle joint in section, when adjacent elements are displaced relative to each other.

The elements of the nozzle can be mounted on axis with the possibility of independent rotation relative to each other.

In addition, elements of nozzles are arranged in tiers and neighbouring height tiers installed rotated relative to each other.

The surface of the blades can be made in a smooth, perforated, "thermoprotei" form or in the form of nets.

The technical result of the proposed invention is that the increased efficiency of processes heat is on and mass transfer by giving the cap an additional turbulent elements and ensure the effective location of the nozzle in the apparatus, simplifies the design of the apparatus, and reduced power consumption, by providing the nozzle rotational motion of the internal forces.

This device is illustrated by drawings, which depict:

figure 1 - General view of the nozzle;

figure 2 - section A-A in figure 1;

figure 3 - principle of operation of the nozzle;

figure 4 - the elements of the nozzle, the joint section;

figure 5 - elements of the nozzle with the possibility of independent rotation on the shaft;

6 - the location of the tip sections in the apparatus tiers;

7 - a view B-B-6;

Fig - arrangement of nozzles in the apparatus tiers;

Fig.9 - a view B-B on Fig;

figure 10 - element fitted to the shaft with smooth blades;

11 - element nozzle with perforated blades;

Fig - element nozzle with "thermopane" blades;

Fig - element nozzle blades in the form of nets.

Regular nozzle for heat and mass transfer column apparatus includes flat parallel spaced disks 1, freely mounted on a horizontal shaft 2, and the adjacent disks 1 is equipped with fixed between the two blades 3, made in the form of a horizontal surface of the semi-cylinders facing its convex part in opposite directions and forming an element of the nozzle. The outer longitudinal edge 4 of each blade 3 is associated with the disk on its circumference, while GNC is Rennie longitudinal edges 5 of each blade 3 is arranged eccentrically relative to the center of disk 1:S=R(0,1÷0,15)

where S is the eccentricity;

R is the radius of the disk 1,

the edges of the blades 3 are located on the same axis of symmetry of the disk 1.

With blades 3 interact gas G and the liquid L flows. The nozzle element has a rotational motion W with respect to the shaft 2 (Fig 3).

The elements of the nozzle rigidly interconnected, form section 6, with a pair of blades 3 on different sides of the discs 1 are shifted relative to each other by the angle α(figure 4).

Several elements of the nozzles mounted on the shaft 2 with the possibility of Autonomous rotation of the elements in the directions W1, W2, W3(figure 5).

Two or more rows of elements in the same horizontal plane form a layer of elements. Tiers of elements in the device 7 are arranged to each other at an angle β.

The nozzle operates as follows.

Since the disk 1 with blades 3 mounted on the shaft 2 with a loose fit, they can rotate relative to the shaft under the action of the gas G and the liquid L flows. Interacting threads G and L fall on the blade elements 3 and this gives nozzle element rotational movement of the W.

On the efficiency of the nozzle is affected by the following factors. The eccentricity S=R(0,1÷0,15)

where S is the eccentricity;

R is the radius of the disk.

At 0.1>S>0.15 process of heat and mass transfer will be reduced.

Combining elements of the nozzles in the work 6 reduces the intensity of the regular nozzles by reducing the total number of disks 1 between the blades 3 of the neighboring elements of the nozzle.

The angle between the pairs of blades 3, on different sides of the disks 1) α=90° or

α=180on,

where n is the number of pairs of blades.

The angle α allows to neutralize the imbalance in the rotation section 6. Failure to comply with angles α may be imbalance in section 6 that when the rotation can lead to undesirable vibrations.

Autonomous rotation of the nozzle element allows you to link adjacent elements in a row so that they will rotate on the shaft 2 in opposite directions relative to each other, which contributes to the intensification of heat and mass transfer.

Longline location of the nozzle allows to intensify the processes of heat and mass transfer throughout the volume of the apparatus. The angle β between the layers is in the range from 0.01° to 90° and allows to intensify the processes of heat and mass transfer and to minimize hydraulic losses.

When β seeking to 0,01°, hydraulic losses are minimal.

When β seeking to 90°, hydraulic loss will be unnecessarily increased.

The blades 3 can be made smooth or profiled. The use of perforated, "termopane" or in the form of nets blades 6 intensifies the process of heat and mass transfer, accounts for the increase of the contact surface of the interacting phases.

The use of the proposed design in the processes of distillation, absorption, and many other processes will allow you to:

- to increase the intensity of heat and mass transfer, by installing nozzles in the device layers and the supply nozzle blades, increasing the contact surface phases;

to simplify the design and reduce power consumption, by giving the elements of the nozzle rotational motion from gas and liquid streams.

1. Regular nozzle for heat and mass transfer vessels containing on a horizontal shaft flat parallel spaced disks, wherein the disks are loosely mounted on the shaft, and adjacent discs equipped with fixed between the two blades, made in the form of a horizontal surface of the semi-cylinders facing its convex part in opposite directions and forming the nozzle element, while the outer longitudinal edges of each blade are associated with the disks on their circumference, and the inner longitudinal edge of each blade arranged eccentrically relative to the center of the disk is equal to 0.1÷0.15 radius of the disc, the edges of the blades are located on one axis of symmetry of the disk.

2. Regular nozzle according to claim 1, characterized in that the elements of the nozzle joint in section, when adjacent elements are displaced relative to each other the while.

3. Regular nozzle according to claim 1, characterized in that the elements of the nozzle is installed on axis with the possibility of independent rotation relative to each other.

4. Regular nozzle according to claim 1, characterized in that the elements of nozzles are arranged in tiers, the neighbouring height tiers installed rotated relative to each other.

5. Regular nozzle according to claim 1, characterized in that the blades are made smooth.

6. Regular nozzle according to claim 1, characterized in that the blades are made with perforation.

7. Regular nozzle according to claim 1, characterized in that the blades are made "thermopane".

8. Regular nozzle according to claim 1, characterized in that the blades are made in the form of nets.



 

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FIELD: separation.

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3 cl, 3 dwg

FIELD: oil and gas industry.

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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

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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.

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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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