Packing for heat mass exchange columns
专利摘要:
A column filling for mass and heat transference, e.g. rectification, absorption, humidification, dehydration of heat exchange, consists of individual elements 4 of shape-perforated material assembled parallel with the column axis to form multi- layered packings. The individual elements in a packing layer 3 are arranged vertically so that in one plane of the layer the direction of orientation of the pyramidal basic bodies 5, of the elements which are opened alternately outwards, is the same. Also adjacent element layers are offset vertically by one pyramidal basic body and horizontally by a half element width, and the element layers are associated with one another in such a way that the upper sides of the individual elements of the other element layers are oriented to the middle element layer having maximum horizontal extent. In a column which works in phase counter-current of vapour (gas) and liquid, sections of such packings may be arranged one above the other and staggered by 90 DEG . <IMAGE> 公开号:SU1033178A1 申请号:SU797770890 申请日:1979-10-25 公开日:1983-08-07 发明作者:Бернд Кулбе;Вернер Кубик;Клаус Хоппе;Герхард Крюгер 申请人:Феб Хемианлагенбаукомбинат Лейпциг "Гримма" (Инопредприятие); IPC主号:
专利说明:
The invention relates to a column packing which, in the zone of contacting liquids, gases and vapors, is suitable for rectification, absorption, desorption, chemisorption, moistening and gas dehydration, as well as for direct heat transfer. This column packing is distinguished by a blogging relation to the volume of the columns by the ratio of pressure drop to mass transfer efficiency with, at the same time, a wide range of operating parameters. A number of packings in the form of packs are known, y are used parallel to the axis of the column, perforated or non-perforated matted contact plates with inclined corrugation, and the inclination of the corrugation constantly changes its direction of orientation along the height of the contact plates. According to OS 245780, the location of the contact ones is known; when knurling, the ribbing is obstructed at an obtuse angle to the axis of the column. The disadvantage of this design is that the mixing effects in the radial direction remain low, especially with large column diameters, since the distribution of the liquid phase in connection with other contact plates is insufficient. According to 3415502, a closed packing is known, in which corrugation passes at an acute angle to the axis of the column and where the contact plates are packed with each other with shifted phases. The efficiency of massLessing and in this variant is insufficient, since here / because of the lack of horizontal flow channels, the properties of the package, in particular with respect to self-distribution. liquids and gases remain unsatisfactory. For both known constructions it is characteristic that the properties of the distribution either in the radial direction parallel to the contact plates are unsatisfactory) the weighty drawback of both inventions is the absence of any design features that provide a radial displacement across at any angle to the contact plates. The mixing effect of the liquid phase is thus completely absent, and the gas phase mixing effect is provided only conditionally through perforated material. According to (jp iOft4794, an end-to-end nozzle is known in which the adapter plates in the column housing are wound. This package provides although acceptable liquid and gas distribution throughout the winding volume, but distribution in radial lerenia can be carried out exclusively through the base material. By to a lesser extent, it can be assumed that the properties of the package, which provide self-distribution of the liquid phase in the radial direction, are absent, and the radial distribution of the gaseous phase under the condition of the perforated material The purpose of the invention is to create a column head with an improved pressure ratio and mass transfer efficiency, a relatively wide range of operating parameters, a simple form and a special suitability for large diameters columns. of the invention, the task was to arrange the perforated suitable individual elements, assembled in layers parallel to the axis of the column, to create a column nozzle with such properties the distributions for the vapor (gas and liquid, that the zigzag liquid flowing down the separate element downwards, the rise of the steam flow will follow the same path in the opposite direction and in the interaction of the vapor (gas and liquid the radial mixing will be established along and across to the element layers) also improve mass transfer efficiency. Basically, this is achieved by the fact that the individual elements in the column case are assembled into a system of layers arranged parallel to the axis of the column in such a way that the pyramidal elementary bodies in the plane of one sled element detect the same direction of orientation, the adjacent layers are displaced in phases vertically by one pyramidal elementary body, and horizontally, half the width of an individual element. Upper side: individual elements aimed at the middle layer of elements with the largest horizontal dimension. The nozzle consists of perforated individual elements of a flat rectangular material, alternately bent at a positive or negative identical angle relative to the longitudinal axis in the same direction, and about three-sided surfaces are bent in the middle across to the longitudinal axis of the elements in the opposite direction, so pyramidal elementary bodies are formed with three-sided surfaces, which are alternately open across the longitudinal axis and the base surface ovan kotchlh completely absent The faces of the bodies remaining in the plane refer respectively to two neighboring elementary bodies. A special form of the invention provides that the folds of an individual element have the shape of a plane. FIG. 1 shows a view of a layer of elements); FIG. 2 - system of elements; Fig. 3 shows the vertical packing of the column packed in a vertical section. 4 shows the section A-A in FIG. 3. The invention consists of perforated individual elements 4 arranged inside the casing of the column 1, which are connected in layers made in parallel with the axis of the column, elements 3 and packages of elements 2. The individual elements 4 in the system are arranged so that the pyramidal elementary bodies 5 are in the plane of one layer of elements 3 they have the same direction of orientation, the adjacent layers of elements 3 are displaced in phases vertically and one pyramidal elementary body 5, and horizontally - by half the width of an individual element. The orientation of the layers of elements 3 is provided in such a way that, coming out of the middle layer of elements 3 with the greatest horizontal izkuryeniem, each upper side of the individual elements 4 of all the other layers of elements 3 is directed to the middle layer of elements 3. A separate element 4 based on The invention consists of a series of open alternately across to the longitudinal axis of a separate element of pyramidal elements 5. The main material for the individual elements 4 is perforated. In this case, the flat rectangular base material alternately bends back by 45 positively and negatively relative to its longitudinal axis, preferably by 90 degrees forming a three-sided surface in the middle between the folds 7. is bent down in such a way that the angle between the two lateral surfaces formed by the underlying material of the individual element is the pirate of the medial elementary body 90 °. A special type of embodiment of the invention provides that the space inside the casing of column 1 is somewhat segmented, which makes it possible to focus the pyramidal elementary bodies 5 on the axis of the column. Schlösth of individual elements or packages of elements 2 is provided in such a way: esm, so that adjacent packages are elements; 2 could be placed above each other, shifted by. The system of elements does not detect free vertical flow sections for liquid and vapor (gas). The nozzle according to the invention operates in a countercurrent of vapor (gas) and liquid. The liquid enters through the usual device for distributing the liquid to the cut edge of the individual elements 4 of the upper element package 2 or the lateral surfaces of the upper pyramidal elementary bodies 5 drip. From there, the liquid flows, preferably in a bend 7 inclined to the longitudinal axis of the individual element, in a zigzag movement downward , stabilized by the upward flow of steam (gas), is captured partly at the edge of a separate element 4 by the upward steam (gas) and is transferred to adjacent elements, hiccups on the side surfaces of the pyramidal elementary body because of the relatively large cross-sectional projected perforation runs dropwise and vynosits gas flow channels for horizontal flow b. The shape of the flow channels 6 allows not only horizontally taking away in the direction of the layers of elements 3, but at the same time at an angle of 30 relative to the layer of elements and thus in the system across the layer of elements 3. Thanks to these properties of the nozzle self-distribution, the layers of elements 3 are so that the upper side of the individual elements 4 shows in the direction of the middle layer of the elements 3 with the largest horizontal dimension and thus the horizontal displacement is directed to the axis of the column. After flowing through the package of elements 2, the liquid flows into CASHLINGS at the lower end of the package of elements 2 located underneath it, shifted by 90 elements. The upward flow of steam (gas} mainly in a zigzag motion falls from the lower to the upper, end of the package of elements 2, partially flows through the main the material at the pyramidal elementary bodies 5 and flows horizontally through the open channels of stream 6 into adjacent individual elements 4, due to the zigzag movement of the upward flow of steam (gas) partial flows of steam. Pyramid elementary bodies 5 also penetrate from adjacent individual elements 4, penetrate the main material of pyramidal elementary body 5, or are drawn horizontally into a zigzag stream of gas (gas) in an adjacent separate element 4. Ascending stream of gas stands out vertically at the edges of the individual elements and at the folds 7, flows downward and, supported by a stream of steam (gas), is again divided at the points of contact of the adjacent separate elements 4. The advantages of the solution according to the invention are in the simple form of the individual elements, in their favorable connection to the system of elements. at a favorable ratio of pressure drop and mass performance to the width of the range of operating parameters and in particular suitability for large-diameter columns. Recognized as an invention by result. tatam. experimentation carried out by the Office for the Invention of the German Democratic Republic. 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权利要求:
Claims (6) [1] 1. NOZZLE FOR HEAT AND MASS EXCHANGE COLUMNS, consisting of individual elements made of perforated material assembled in layers parallel to the column axis, with the exception that the individual elements are arranged vertically in the layer so that the direction of orientation is in the plane of one layer pyramidal elementary bodies, alternately open to the outside, are the same, while from layer to layer the elements are mounted with a displacement but vertically by one pyramidal elementary body, horizontally - by half the width of the element, and the layers of elements relative to each other, the upper side of the individual elements facing the middle I mu layer of elements with the greatest horizontal dimension. [2] 2. Nozzle by ri. 1, characterized in that the layers of elements in the plane are arranged in circular sectors, so that the upper side of the layers of elements inside one sector is directed to the axis of the clone. [3] 3. The nozzle in paragraphs. 1 and 2, characterized in that the bends extending at an angle and across to the longitudinal edge of an individual element have a plane shape. : [4] 4. A nozzle according to nni.1-3, characterized in that the flat basic material of an individual element is alternately bent at a positive or negative equal angle to the longitudinal axis in one direction, and the trilateral surfaces formed in this case are bent in the middle transverse to the longitudinal the axis of the individual elements in the opposite direction so that pyramidal elementary bodies are formed with three-sided surfaces that are alternately open to the outside. [5] 5. The nozzle in paragraphs. 1-4, characterized in that the smallest angle between the edges of the tripartite surfaces is 30 °. [6] 6. The nozzle in paragraphs. 1-5, with the fact that the bends inclined to the longitudinal axis of an individual element are located in the same plane. SU ... 1033178>
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同族专利:
公开号 | 公开日 DD145154A3|1980-11-26| DE2943061A1|1980-06-04| GB2035831A|1980-06-25| FR2449465B1|1984-03-30| GB2035831B|1983-05-11| FR2449465A1|1980-09-19| DE2943061C2|1987-08-27|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 GB792740A|1956-05-23|1958-04-02|Dow Chemical Co|Apparatus for distributing falling liquid in thin films| SE307964B|1964-03-24|1969-01-27|C Munters| GB1236014A|1967-04-14|1971-06-16|Nat Res Dev|Heat exchangers|CH664091A5|1985-01-30|1988-02-15|Sulzer Ag|PACKING BODY MADE OF THIN, FILM-LIKE MATERIAL FOR FABRIC AND HEAT EXCHANGE COLUMNS BETWEEN LIQUID AND GASEOUS PHASES.| DE3515300A1|1985-04-27|1986-10-30|Gerd Dr Wilhelm|PYRAMID PACK FOR PROCESS ENGINEERING| HU197220B|1986-03-24|1989-03-28|Budapesti Mueszaki Egyetem|Charge structure particularly in columns chiefly for contacting liquid and gas phases| DE10049980C2|2000-10-06|2002-09-05|Freudenberg Carl Kg|Folded spatial object, in particular filter element, and method and device for its production| NL2006023C2|2011-01-18|2012-07-19|Stichting Energie|Heat integrated distillation column using structured heat exchanger.| NL2006022C2|2011-01-18|2012-07-19|Stichting Energie|Heat integrated distillation column using structured packing.|
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申请号 | 申请日 | 专利标题 DD20932478A|DD145154A3|1978-11-27|1978-11-27|COLLANE FUELING FOR FABRIC AND HEAT TRANSFER| 相关专利
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