Nozzle for absorption apparatus
(57) Abstract:The invention relates to a device contact between the gas and liquid mass transfer apparatus gas, petroleum, chemical and petrochemical industry, in particular to nozzles mass transfer devices operating three-phase fluidized layer in aggressive environments, and is used in the columns for gas cleaning and acid components. The purpose of the invention is the improved quality of cleaning gas from the acid components by increasing the multiplicity of the update contact surface phases. The nozzle is made in the form of a solid circular disk, perpendicular to and eccentric with respect to each other so that the magnitude of the eccentricity 0.065 - 0.1 diameter, with one solid circular disk provided with two through holes located on the axis of symmetry on both sides of the axis of intersection of the disks, and placed in the double jacket of the mesh material, so that the first grid layer is fixed through the through holes and the second freely relative to the first. 5 Il., table 2. The invention relates to a device contact between the gas and liquid mass transfer apparatus gas, oil, chemical and neftehimicheskogo in aggressive environments and is used mainly in the columns for gas purification from impurities, such as acid gas.Known nozzle, made in the form of smooth balls of plastic 
The disadvantage is that the nozzle of the balls with a smooth surface not provide intensive mixing of the liquid with the gas, and due to insufficient mixing of the liquid with the gas contact surface phases remains minimal. An advantage of the nozzle is the simplicity of its manufacture and that when it is used in the apparatus do not form stagnant zones.Closest to the technical nature of the invention is a nozzle, made in the form of three mutually perpendicular rigidly fixed at the center of the disk 
The use of attachments such design allows to increase the intensity of mixing and to increase the surface of contact between liquid and gas phase. However, such nozzle 3 is perpendicular to the disk does not provide a high intensity mixing of the liquid with the gas. The nozzle is moved without rotation around an axis, which contributes to a high mixing intensity, unevenly distributed over the volume of the layer, increasing the hydrodynamic resistance is a rule effective mixing of the liquid with the gas contact surface phases remains minimal, not a high quality cleaning of gases from acid components.The aim of the invention is to improve the quality of purification of acidic components from natural gas by increasing the multiplicity of the update contact surface phases.This is achieved by the described nozzle, made in the form of mutually perpendicular rigidly fixed disks.What's new is that it is made in the form of a solid circular disk, perpendicular to and eccentric with respect to each other so that the magnitude of the eccentricity 0.065-0.1 diameter disc, and one solid circular disk provided with two through holes located on the axis of symmetry on both sides of the axis of the junction (bonding) disks and placed in the double jacket of the mesh material so that the first grid layer is fixed through the through holes and the second freely relative to the first.This embodiment of the nozzle provides due to the difference of the weights of each of the semi-circle, rotating in different axes and any direction depending on the hydrodynamic regime of gas-liquid flow, eliminates the possibility of formation of stagnant zones. In addition, the location of the nozzle in the double jacket of the cm contact surface, contributing to the increasing frequency of its updates. During operation of the nozzle in the fluidized bed process intensive mixing and update contact surface phases in two steps on the surface of the package and on the outer surface of the shirt.In Fig.1 shows the proposed nozzle, General view; Fig.2 the inner part of the proposed two nozzles of a disc perpendicular to and eccentric with respect to each other; Fig.3 section a-a in Fig.1; Fig. 4 cross-section B-B in Fig.2; Fig.5 the inner part of the proposed nozzle in the shirt of the mesh material, mounted through the bushing holes.The attachment contains two round solid rigidly fixed disk 1 and 2 perpendicular to and eccentric (Fig.1,2) relative to each other so that the magnitude of the eccentricity 0.065-0.1 of the diameter of the disk, while the disk 1 is provided with two through adversity 3, located on the axis of symmetry in the double jacket of the mesh material of 4.5, the first grid layer 4 is fixed through the through holes 3, and the second layer 5 freely relative to the first layer (Fig.1).The amount of eccentricity was found experimentally in dependence on intensive work on the Sabbath., is ostavljaja it all the time to rotate, move in any position, direction and in a variety of axes.When the amount of eccentricity of the smaller 0,065 D of the disc decreases the displacement of the center of gravity of the nozzle about its axis passing through the center of gravity nozzle adopts a more stable position, increases the unevenness of its distribution by volume of the layer, and accordingly the hydraulic resistance of the layer head.When the value of the eccentricity greater of 0.1 D disk surfaces of the two semicircles is reduced and the two increases, disturbed optimally chosen action multidirectional forces flowing from the top of the liquid and a rising gas. Slows down the mandatory rotation of the nozzle about its axis.The offset of the center of gravity of the nozzle about its axis passing through the center of gravity, gives an unstable position of the nozzle, causing it to rotate in any position, direction and in a variety of axes due to the fact that it is made in the form of a continuous two round disks perpendicular to and eccentric with respect to each other so that the magnitude of the eccentricity 0.065-0,1 D drive, with one solid circular disk provided with two through ainuu shirt and mesh material (RS-12X18H10T TU-2602-354-76) the first grid layer is fixed through the through holes and the second freely relative to the first. Becomes possible increase in the intensity of mixing gas with liquid.The nozzle is a kind of rotary element rotating around its axis and high-speed stream together with a shirt, freely moving inside her, increasing the surface contact between gas and liquid and its multiplicity update, promoting uniform distribution within the absorption layer, and uniformly aligning the distribution of gas-liquid flow in the entire volume of the fluidized bed, which allows to stabilize the quality of gas cleaning and acid components.Place Powerline holes to chose from design considerations, such a solution increases the instability of the nozzle.The device operates as follows.In the initial stage of operation, the nozzle is located on the support bars in a fixed position. The gas coming from the bottom of the apparatus, passes through the channels formed between the nozzles, where he meets with the liquid coming from the top. The channels have a complex shape, since the gaps between the nozzles Packed the Z. The nozzle has a large contact surface per unit volume. Even in the layer of stationary nozzles is aerated, excessive foaming, which contributes to a significant increase in contact surface phases.With increasing gas velocity, the system enters a mode developed fluidization. When the nozzles are in the expanded condition, moving threads interacting phases, influencing the shapes of disks (which serve as blades), bring the nozzle to the required intensive rotation, as with one hand on the nozzle force directed vertically upwards and is applied with an offset from the center of gravity, and on the other side of the force is determined by weight of the liquid directed downward and located on the other side of the vertical axis passing through the center of gravity of the nozzle. Because the density of the rising gas is always less than the density of the flowing fluid multidirectional forces provide constant rotation of the nozzle, which in turn contributes to intensive mixing of the liquid with the gas, and this is achieved by increasing the efficiency of mass transfer between them, the quality of the cleanup.Packaging free simple is ü contact phases per unit volume and is one of the steps, creating a well-developed contact surface per unit volume and increasing multiplicity update contact surface phases on the mesh material.Packaging and shirt nozzle sleeve mesh as elements nozzles create a well-developed contact surface per unit volume, facilitating fragmentation of jets of gas and liquid, increasing the multiplicity update contact surface phases in two areas of the mesh material, greatly increasing the effective contact surface phases throughout the volume of fluidization and intensity of mass transfer.The most important condition for the effective operation of the nozzles in the fluidized bed is the right choice with its specific weight. Increasing the mass of the nozzle reduces the degree of expansion of the layer and consequently the free section for the passage of gas and liquid flows, increases the friction between the nozzles, the unevenness of their distribution, which leads to an increase of the hydraulic resistance of the layer. Increasing the number of layers of shirts leads to weight gain tips. The number of stages (two stages) is selected experimentally. Column apparatus in the gas region operate in conditions of fluctuating loads and kacestvennogo provides stabilization of hydrodynamic conditions of the process and high cleaning efficiency.P R I m m e R. Nozzles in the above execution goes to sleep for lattice plates failure type, which is mounted in an absorption column with a diameter of 400 mm (installation experienced). The top plate is fed a liquid stream of an aqueous solution of an absorbent of monoethanolamine (12 wt. the rest is water) mass velocity 41524 kg/m2h, and the bottom gas at a rate of 2.54 m/s Speed of onset of fluidization 2.54 m/s depends on the hydrodynamic regime of the system and is calculated or experimentally. The gas composition is given in table.1.The gas entering the bottom plate, passes through the channels formed between the nozzles, where he meets with an aqueous solution of monoethanolamine, from above. At speeds below 2.54 m/s nozzle is stationary, but in the channels is dispergirovanija fluid gas stream and intense fragmentation and increasing multiplicity update contact surface phases on the surface of the mesh material, which is more extensive contact surface per unit volume, better broken streams of gas and liquid.With increasing speed above 2.54 m/s the system enters a mode developed fluidization. In this nozzle perinasal to intensive rotation around its axis and high-speed stream. Packing the space between the semicircles drives and shirt nozzle sleeve mesh as elements of the nozzles in the set of features to create two additional developed surface area per unit volume, increase the effective contact surface phases throughout the volume of fluidization and intensity of mass transfer.The use of the nozzle allows to increase the efficiency of mass transfer. The results of the nozzles shown in table.2.From table.2 shows that the proposed cap allows to increase the degree of purification of acidic components from natural gas to about 70-75. compared to the prototype (10 vol.).Technical and economic efficiency of the proposed extension to the absorption apparatus is formed by increasing the multiplicity of the update contact surface phases, i.e., by increasing the effective contact surface phases, the stabilization process of hydrodynamics in fluidized bed and as a consequence an increase in the degree of gas purification from acid components 7 times. NOZZLE FOR ABSORPTION APPARATUS, made in the form of mutually perpendicular zhestkokrilih solid round disks, wherein the disks are eccentric relative to Ohotniki holes, located on the axis of symmetry on both sides of the axis of intersection of the disks, and placed in the double jacket of the mesh material so that the first grid layer is fixed through the passing hole, and the second freely relative to the first.
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