The random packing element for heat and mass transfer apparatus
(57) Abstract:Usage: in the chemical, refining and other industries, in the implementation of the rectification, absorption, and other heat and mass transfer processes in the respective apparatuses. The inventive element of the random packing, comprising a housing in the form of surfaces of revolution with holes and petal limb located inside the body, the body of each nozzle element made in the form of a hemispherical surface of rotation, the end of which may be accomplished by crimping. In an embodiment, the body of each nozzle element made in the form of a closed surface of rotation, the ends of which are formed by the limb portion of the side surface of the body, the shape of the ends of the casing may be either spherical or conical. 4 C.p. f-crystals, 5 Il. The invention relates to the chemical, refining and other industries and can be used in the implementation of the rectification, adsorption and other heat and mass transfer processes in the relevant mass transfer devices.The prior art various elements of irregular attachments, such as cylindric is ementa petals having a different form for example, arcuate, see an Overview "Foreign attachment devices of mass transfer equipment", Containertypes, M. 1982, S. 4-5, Fig. 3, 4 
Also known semi-cylindrical elements nozzles, representing a cut in the median plane of the hollow cylinder, the surface of which is made with perforation, with curved inward (concave) curved petals, see S. 8, Fig. 6.In addition, well-known saddle-shaped elements of the nozzle, the surface of which is formed by a combination of conical and cylindrical surfaces, see  S. 9, Fig. 7.To the saddle-shaped elements nozzles are also elements of the nozzle type INTALOX, each of which is formed an arcuate flanged strip with vyshtampovanny wall and bent inward petals, see  S. 9, Fig. 8.For all elements of the above nozzles, related by way of laying to irregular (bulk) nozzles characteristic, depending on the shape forming elements (cylindrical, semi-cylindrical, a saddle-node) various hydraulic resistance and the efficiency of mass transfer.However, due to the fact that these nozzles are used in columns p is derivada distribution grids (plates), not excluded such position (orientation) in the column, when the mass-transfer surface elements nozzles are inefficient relative to the direction of flow of the contacting phases. For example, from the point of view of efficiency of mass transfer, the most advantageous position of a cylindrical or semi-cylindrical, or a saddle-node form elements nozzles, is the horizontal position of the elements, i.e., the maximum overlap their mass-transfer surfaces of a horizontal section of the column.When mounting the random packing due to the large amount of work in 90% of cases the elements of the nozzle fall asleep and not placed in layers, and therefore with high probability, up to 50% for example, the cylindrical elements of the nozzles can be placed in a vertical position (to stand on the side of the case). This leads to a significant decline in her health, since the vertical position of the specified element mass transfer surface (surface of the petals and the side surface) off from work relative to the vertical direction of the contacting phases.A prototype of the invention selected above irregular nozzle from the cylinder the analogues, namely probable inefficient location in the packing layer of its elements from the point of view of efficiency of mass transfer.The claimed invention is directed to a solution to improve the efficiency and performance of mass transfer in packing layer.The solution of this problem is provided by the fact that the random packing element comprising a housing in the form of surfaces of revolution with holes and petal limb located inside the body, the body of each nozzle element made in the form of a hemispherical surface of rotation, the end of which may be accomplished by crimping. In the embodiment, the case each element of the nozzles is made in the form of a closed surface of rotation, the ends of which are formed by the limb portion of the side surface of the body, the shape of the ends of the casing may be either spherical or conical.The technical result from the use of the invention is to improve the performance and efficiency of mass transfer at virtually the same work on the fabrication and installation of random packing.In Fig.1 shows a General view of the nozzle element of Fig.2 is a top view of Fig.3,4,5 same, (variants of the condition 1 in the form of surfaces of revolution with holes 2 and petal limb 3 located inside the housing 1. The surface of rotation of the housing 1 is made in the form of a hemisphere, the end of which is provided with a flared 4. In versions of the surface of rotation of the housing 1 is made in the form of a closed surface (see Fig.3,4,5) part of the lateral surface. The bottom of the casing 1 in these variants can be executed or spherical, or conical. Thus, in these embodiments, the overall contour of the nozzle element has the form of a closed geometric surface (figures) rotation, while the side and end surfaces of the bent inside shapes and forms together with the outer (lateral) surface of the additional mass-transfer surface.In an embodiment of the nozzle element in the form of a hemisphere petals are located inside of the hemisphere, and the folds of their end parts are also located inside of the hemisphere. This eliminates the coupling of the individual elements of the nozzle during its installation, as well as their location in each other. In addition, by placing the petals in different planes, any position of the nozzle is in operation, however, the most advantageous from the point of view of mass transfer, is a position where the nozzle is located in the layer flared down.During installation of the nozzle PRIV elements of the nozzle in both cases, each element of the nozzle will be placed in the most advantageous position for engagement with the threads of the interacting phases flared up or down for the variant with a hemispherical surface and always on the side for options with a closed surface.This allows the operation to significantly improve the efficiency and performance of mass transfer at virtually the same cost to manufacture. 1. The random packing element for heat and mass transfer apparatus, comprising a housing in the form of surfaces of revolution with holes and petal limb located inside the body, wherein the body is made in the form of a hemispherical surface of the rotation.2. Item under item 1, characterized in that the hemispherical end surface of the rotation performed flared.3. The random packing element for heat and mass transfer apparatus, comprising a housing in the form of surfaces of revolution with holes and petal limb located inside the body, wherein the body is made in the form of a closed surface of rotation, the ends of which are formed by the limb portion of the side surface of the body.4. Item under item 3, characterized in that the ends of the housing are spherical.5. Item under item 3, characterized in that the edges are made conical.
FIELD: chemical or physical processes.
SUBSTANCE: catalytic nozzle comprises central cord of the core of the fiber members made of polymeric fiber, e.g. capron, whose diameter exceeds the diameter of individual fiber members by a factor of two. Several fiber members of the nozzle are modified by catalyzers. The ratio of the modified and non-modified fibers is 1:2. The thrown fibers are primarily wound on the central cord, and then the noncorroding metallic cords are wound over the thrown fibers.
EFFECT: enhanced reliability.
1 cl, 1 dwg
FIELD: chemical industry; textile industry; food industry; light industry; other industries ; equipment of the wet dust separation.
SUBSTANCE: the invention is pertaining to the equipment of the wet dust separation and may be used in chemical, textile, food, light and other industries for purification of the dusty gases. The packed scrubber contains: the body with the fitting pipes for the dusty gas and the purified gas; the sprinkling device; the support gratings, between which there is the head; and the device for withdrawal of the slime. The head is made in the form of the hollow spheres, on the spherical surface of which there is the cut groove having in the cross-section perpendicular to the screw line the profile of "Berly saddle" or "Itallocks" saddle. The head can be made out of the porous polymeric materials, the glass, the porous rubber, the composite materials, timber, stainless steel, titanium alloys, precious metals. The technical result of the invention is the increased efficiency and reliability of the dust-catching process, and also reduction of the metal consumption and the vibroacoustic activity of the apparatus as a whole.
EFFECT: the invention ensures the increased efficiency and reliability of the dust-catching process, reduction of the metal consumption and the vibroacoustic activity of the apparatus as a whole.
3 cl, 4 dwg
FIELD: production of ceramic elements for packing.
SUBSTANCE: ceramic element (1, 6, 8) for packing is used as limiter for layers; it is made in form of bow-tie and has constant cross section along axis (1) and many through passages (5) which are parallel to direction of length (L). Proposed method consists in extrusion of mixture which contains one or several ceramic-forming components, sectionalizing of extruded mixture for forming sections and burning of sections for forming packing element. Packing is used for filling the columns where mass-transfer and heat-transfer processes are carried out.
EFFECT: enhanced efficiency.
15 cl, 6 dwg
FIELD: forming of elements for dumped packing used for filling columns for mass- and heat-exchange processes.
SUBSTANCE: axis of symmetry of proposed element lies in way of its length. Ratio of largest size perpendicular to length and defining diameter (D) of element to length (L) ranges from 2.7 to 4.5. Element has polygonal cross section with six sides and many internal partitions forming passages at triangular cross section.
EFFECT: possibility of obtaining optimal working parameters.
15 cl, 5 dwg
FIELD: chemical industry; other industries; production of the heads for the heat-mass-exchanging apparatuses.
SUBSTANCE: the invention is pertaining to the devices of heat-mass-exchanging apparatuses with the fluidized three-phase layer and may be used in chemical industry and other industries at purification of the gas bursts of the harmful gaseous components. The head for the heat-mass-exchanging apparatuses is made in the form of the torus produced out of the cylindrical component made out of the synthetic filaments by its twisting from one or two ends. The cylinder is made out of the longitudinal filaments fasten among themselves in the staggered order with formation of the longitudinal cells. At that the diameter of the head exceeds its height in 1.25-1.33 times, and the ratio of the cell height to the diameter of the head makes 0.25-0.3. At utilization of the head the gas-liquid layer is uniformly distributed in the operation volume of the apparatus, that predetermines the stable hydrodynamic situation. At that the mass exchanging process is intensified due to the highly developed surface and the strong turbulization of the gas-liquid layer.
EFFECT: the invention ensures the gas-liquid layer uniform distribution in the operation volume of the apparatus, the stable hydrodynamic situation, intensification of the mass-exchange process.
FIELD: chemical engineering.
SUBSTANCE: invention relates to design of fill0in heads for mass transfer apparatuses and it car be used in heat-mass transfer processes in liquid-vapor(gas) systems, for instance at rectification, absorption, desorption, distillation a dn other processes. Proposed head member for mass transfer apparatuses has cut elements curved to circle of side surface. According to invention, head member is made in form of parallel cylinders formed by cut elements arranged in rod height, curved to circle in turn, inside and outside. Cylinders are connected by bridges and are arranged relative to each other so that their diametral planes from side surface of regular polygonal prism.
EFFECT: increased efficiency of heat-mass transfer by increasing surface of phase contact owing to reduction of drop formation and uniform distribution of phase surface in volume of heat-mass transfer apparatus.
FIELD: chemical industry.
SUBSTANCE: method comprises mixing gas with a portion of the circulating gas-liquid mixture, bringing the mixture produced in a contact with the finally dispersed drops in the first stage and with liquid condensed on the nozzle members in the second stage, pumping the main portion of the gas-liquid mixture through the pipes to the top layer of the liquid, and entraining the remainder portion by means of vortex funnels toward the bottom liquid layer in the third stage. A portion of the mixture is directed to the recirculation, and the remainder portion is forced to contact with the drops of circulating liquid in the fourth stage. The final contact is produced in series in the nozzle chamber of the fifth stage, aeration towers, and bubbling chambers of the sixth stage. The sprinkling chamber of the first stage receives acoustic ultrasonic disperser provided with longitudinal ultrasonic wave ducts. The sprinkling chamber of the fourth stage receives the deflecting shields with a diameter of 30-80 mm made of interconnected cylinders of different diameters. The cylinders have longitudinal cuts from the bottom cylinder to the top cylinder and additional cuts in the cylinders. The members for charging the nozzle chambers in the second and fifth stages are made of balls with a diameter of 20-70 mm provided with six-nine hollows in the spherical surface whose axes intersect at the ball center. The thickness of the walls between the hollows decreases toward the ball center.
EFFECT: enhanced efficiency.
5 cl, 6 dwg
FIELD: chemical industry; petrochemical industry; oil-refining industry; oil-processing industry; gas-processing industry; metallurgical industry; by-product-coking industry; environmental protection; production and operation of the packed mass-exchange apparatuses for the "gas-liquid" systems.
SUBSTANCE: the invention is pertaining to the packed mass-exchange apparatuses for the "gas-liquid" systems and may find application in chemical, petrochemical, oil-and gas-processing industries, metallurgical industry and the by-product-coking industry, and also in the industrial ecology at purification of the flue gases and the ventilation emissions. The packed column contains the cylindrical body and the head made in the form of the multi-row located in it rings, the lateral surface of the rings of the head is bent along the circumference with R=0.08-0.1 m. The rings are vertically installed with the shift in the rows of the convex side towards the axis of the body of the packed column in such a manner, that the upper protruding edge of each ring of the lower row number is located inside the ring of the upper row. The technical result of the invention is the increased degree of the purification of the gases at the expense of intensification of the process of the mass-exchange between the gas and the liquid.
EFFECT: the invention ensures the increased degree of the purification of gases at the expense of intensification of the mass-exchange process between the gas and the liquid.
SUBSTANCE: invention relates to novel catalyst fillings containing physical mixture of catalytically active and catalytically inactive molded particles wherein catalytically inactive molded particles have rounded edges on their friction surfaces.
EFFECT: reduced mechanical wear inside catalytic filling and preserved low pressure drop over the filling.
FIELD: engines and pumps; chemistry.
SUBSTANCE: reactor system comprises reactor tube, which contains compressed layer of molded carrier material, which may include catalytic component. Molded carrier material, for instance, aluminium oxide, has geometric configuration of hollow cylinder. Catalyst contains silver. Hollow cylinder has ratio of rated length to rated external diameter from 0.5 to 2, and ratio of rated external diameter to rated internal diameter, which exceeds 2.7. Reactor system also has such combinations of reactor tube diameter and geometric parameters of molded catalyst carrier, which make it possible to produce compressed layer of catalyst in reaction system with high density of package with minimum pressure drop via compressed layer of catalyst.
EFFECT: higher efficiency.
21 cl, 7 dwg, 3 tbl, 7 ex