CN201799131U - Liquid parallel flow combination tower - Google Patents
Liquid parallel flow combination tower Download PDFInfo
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- CN201799131U CN201799131U CN2010202190972U CN201020219097U CN201799131U CN 201799131 U CN201799131 U CN 201799131U CN 2010202190972 U CN2010202190972 U CN 2010202190972U CN 201020219097 U CN201020219097 U CN 201020219097U CN 201799131 U CN201799131 U CN 201799131U
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Abstract
The utility model relates to a liquid parallel flow combination tower which is a piece of gas-liquid contact equipment used in procedures of mass transfer and heat transfer in fields of chemical industry, oil refining, pharmacy and environment protection. The liquid parallel flow combination tower comprises a tower body which comprises an inner tower and an outer tower; the inner tower is sleeved in the outer tower; the inner and outer towers are respectively provided with a tower plate corresponding to the cross-sections; a liquid reducing system enabling the liquid on each layer of tower plate to flow in the same direction is disposed on the tower plate. The combination tower of the utility model can realize the mass transfer of large flux liquid, so that no stagnation zones are on the tower plate; the mass transfer area is increased; the processing capacity is strengthened; the average driving force of gas and liquid mass transfer and the mass transfer efficiency of the tower plate are improved.
Description
Technical field
The utility model relates to a kind of gas-liquid contanct equipment, a kind of liquid of widespread usage and flow tower in the processes such as particularly a kind of mass transfer in fields such as chemical industry, oil refining, petrochemical industry, pharmacy, environmental protection, heat transfer.
Background technology
At present, the gas-liquid contanct equipment of in processes such as the mass transfer in fields such as oil, chemical industry, pharmacy, environmental protection (carry as rectifying, absorption, desorb, gas etc. unit operations), heat transfer, using, being most widely used of plate column, plate column is a fundamental type with liquid phase continuous type column plates such as sieve-board type, float-valve type and bubble-cap formulas, be that the multilayer column plate is set respectively in the tower body of a tubular, some mass transfer components also are set on the column plate.Some column plates newly developed also are the improved forms of these several column plates, and the disposal ability of these column plates is less, plate efficiency is low, and pressure drop is big, energy consumption is also higher relatively.Some gas phase continuous type column plates have appearred in recent years, board-like and the follow-up developments form as vertical screen, aspects such as its disposal ability and efficient all are significantly improved, but come with some shortcomings, too much take fluid passage on the column plate as cover body, when the liquid phase treating capacity is big, can produce bigger gradient of liquid level, influence gas-liquid and normally contact; And the improvement that the development of gas phase continuous type column plate generally is confined to the gas-liquid mass transfer component structure and arranges, substantially all be the traditional approach that has adopted the gas liquid cross-flow contact, gas phase rises step by step through the perforate on the column plate, liquid phase descends step by step by downspout and column plate, liquid phase forms the reverse flow state on adjacent two-layer column plate, gas phase and liquid phase are at the local cross-flow state that forms of column plate.But no matter be gas phase continuous type column plate or liquid phase continuous type column plate, because the flow direction of liquid is opposite between adjacent tray, therefore all there are arc slow district and perimeter dead zones, account for the long-pending 20-30% of tower plate surface greatly, cause effective mass-transfer zone greatly to reduce, and air-teturning mixed phenomenon is serious, influences separative efficiency greatly.
The concurrent effect that Lewis derives is: when adjacent two layers rectifiying plate liquid flow direction is identical, and the mass transfer force maximum on the column plate, plate efficiency is the highest.And point out further that after deliberation Lewis concurrent effect is that plate efficiency improves unique feasible strategy more than 20%.1981, Jenkins at first proposed the co-flow tower structure of Parastillation, and it has been carried out experimental study, and under identical separation requirement, and stream column plate separative efficiency significantly improves, required reflux ratio also reduces significantly; The descendant has carried out more deep research and improvement to this tower, and the result proves that the concurrent structure has obvious facilitation to the raising of rectifying column plate efficiency, but because equipment and Technological Economy problem are not seen the report of the type tray in industrialization so far.The Slit column plate that Kuhni company proposes, it is the direct industrial implementation of Lewis concurrent effect, can effectively eliminate the liquid holding zone of conventional cross flow tower plate and the bubbling area of increase column plate, thereby on the basis of guaranteeing the mass transfer separating effect, promote the production disposal ability greatly, but this column plate adopts liquid phase (bubbling) type operation continuously, the mass transfer zone can not be showed the advantage that the concurrent effect significantly improves separative efficiency fully only for the liquid layer on column plate.
The utility model content
The technical problems to be solved in the utility model provides and a kind ofly can increase mass transfer force, improves the big flux liquid parallel flow composite tower of separative efficiency.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of liquid parallel flow composite tower, comprise the continuous mass transfer tower board of tower body and multilayer, every layer of continuous mass transfer tower board comprises the column plate that is provided with air rising hole, is positioned at the solid mass-transferring element of air rising hole top and falls liquid systems, described tower body is divided into inner tower and outside tower, interior tower is sleeved in the outer tower, be arranged with in parallel and the corresponding column plate I of interior tower cross section in the tower in described, also be arranged with in parallel in the described outer tower and the corresponding column plate II of outer tower cross section, described column plate is provided with the liquid that can make on every layer of column plate and is the equidirectional mobile liquid systems that falls;
The liquid systems that falls that is provided with in the described outer tower is the downspout that is arranged alternately, every cover downspout comprises down-flow plate I and the down-flow plate II that be arranged in parallel, for falling the liquid passage, the upper end, the down-flow plate I that fall the liquid passage are provided with the downflow weir perpendicular to column plate II between two down-flow plates; Down-flow plate I, down-flow plate II and interior tower outer wall vertical are provided with, and the downflow weir of another downspout is connected on the upper end of down-flow plate I and the upper strata column plate, and lower end and column plate II are tightly connected; The lower end of the down-flow plate I of another downspout is connected on the upper end of the down-flow plate II that be arranged in parallel with down-flow plate I and the upper strata column plate, is provided with the liquid flow pass between the lower end of down-flow plate II and the column plate II;
The liquid systems that falls in described in the tower is positioned at the Nei Ta center, comprises the central well down take that passes through column plate I center, middle seal pot, down flow apron, mozzle and annular seal pot; The inlet ambient of corresponding central well down take is provided with coupled and exceeds the center downflow weir on column plate I plane on column plate I; The top of seal pot in the middle of central well down take is positioned at, the peripheral intervals of middle seal pot is provided with mozzle, is provided with down flow apron between each mozzle; The annular seal pot is positioned at the periphery of one deck column plate I down, and draft tube outlets is corresponding with annular seal pot.
The improvement of tower body described in the utility model is: described tower body and Nei Ta are cylindrical, and outer tower is an annular.
The improvement that liquid systems falls in the outer tower of the utility model is: the described down-flow plate structure that be arranged in parallel is any one in deflector type, linear descending or the curvilinear style.
The improvement of outer tower described in the utility model is: comprise by single cover in the described outer tower or overlap the liquid systems that falls that downspout forms more.
The improvement that liquid systems falls in interior tower described in the utility model is: described central well down take and middle seal pot are circle or regular polygon; Described mozzle is a kind of in round tube, rectangular tube or the upper shed channel-section steel; Described annular seal pot is fixedlyed connected with column plate I by inlet weir.
The improvement of solid mass-transferring element described in the utility model is: described solid mass-transferring element is a calotte, calotte comprises side plate, top board and is positioned at the side plate lower end and is used for the leg of fixedlying connected with column plate, space between top board and the side plate is the skylight, leaves certain space between calotte and the column plate.
The improvement of described calotte is: the side plate of described calotte is provided with spray-hole, spray-hole be shaped as in circle, rectangle, screen shape or the class squama shape any one.
Improvement of the present utility model also is: the height in space is 0～25mm between described calotte and the column plate.
Owing to adopted technique scheme, the obtained technological progress of the utility model is:
Inner tower and outside tower of the present utility model can be distinguished or a shared gas passage, gas is from bottom to top by each layer column plate, interior tower liquid enters column plate I by the annular seal pot around the tower wall by inlet weir, the mass transfer component of flowing through then enters central well down take through crossing downflow weir behind the gas-liquid mass transfer, liquid falls to the center seal pot, be guided to the annular seal pot of lower floor's column plate after the process down flow apron distributes by mozzle, and then flow to the central well down take direction; Mode is descending in the shape of a spiral in the tower outside whole for outer tower liquid, externally annular column plate II upper edge is counterclockwise or clockwise direction flows, reduce to lower floor's column plate by downspout separately, inside and outside tower is all realized the equidirectional mobile mode of each layer column plate liquid in tower, compare with traditional tower adjacent two layers column plate liquid phase counter-current operation, liquid on the interior every layer of column plate of its tower is in the same way, and mode flows, eliminated the liquid holding zone on traditional column plate, increased effective mass transfer area, increased disposal ability, improve the average motive force of the gas-liquid mass transfer on the column plate greatly, further improved the mass-transfer efficiency of column plate.The utility model can improve mass-transfer efficiency under the situation that reaches the identical separation requirement, reduce operating reflux ratio, reduces operating cost, can reduce number of actual plates or reduce the tower body diameter simultaneously, reduces infrastructure investment.
Fall liquid systems in the utility model and reduced the length of flow of liquid on column plate under the identical tower diameter, simultaneously because the solid mass-transferring element also can reduce the column plate liquid level drop to the extracting effect of liquid, therefore has lower gradient of liquid level with respect to traditional column plate, and the gas holdup in the liquid phase is also lower, so have bigger liquid phase disposal ability, the gas phase that cooperates the calotte with jet power can form in the tower is continuous, so this liquid parallel flow composite tower plate has bigger disposal ability and wideer operating flexibility.
The height of the utility model downflow weir can be according to flow set; The solid mass-transferring element is arranged to have the calotte of spray-hole, gas phase is fully contacted with liquid phase, and make mixed continuous type have the gas phase of drop from spray-hole and skylight ejection, can not make drop dirty along side plate in calotte, crack, the end between calotte and the column plate can be provided with according to flow, to guarantee the abundant mixing of gas phase and liquid phase.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a perspective view of the present utility model.
Among the figure: 1. tower body, 2. column plate I, 2 '. column plate II, 31. down-flow plate I, 31 ' down-flow plate II, 32. down-flow plate I, 33. down flow aprons, 34. central well down takes, 35. the liquid flow pass, 36. middle seal pots, 38. annular seal pots, 39. mozzles, 4. downflow weir, 4 '. center downflow weir, 5. calotte, 51. top boards, 52. spray-hole, 53. side plates, 54. legs, 55. skylights, 6. the liquid passage falls, 7. inlet weir, 8. in tower, 9. outer tower.
The specific embodiment
Below in conjunction with Figure of description and specific embodiment, the utility model is described in further detail.
Fig. 1 is a kind of liquid parallel flow composite tower, comprise cylindrical tower body 1 and the continuous mass transfer tower board of multilayer that is arranged in the tower body 1, tower body is divided into cylindrical interior tower 8 and the outer tower 9 of annular, interior tower is sleeved in the outer tower, column plate I 2 in the interior tower is corresponding with interior tower cross section, and be arranged in parallel, Wai Tazhong also is arranged with in parallel and outer tower cross section corresponding annular tower II 2 '; Be respectively arranged with in the inner tower and outside tower and fall liquid systems.
The liquid systems that falls of outer tower comprises the quadruplet downspout that is arranged alternately that is surrounded on outer tower inside, the quadruplet downspout is divided equally into four parts with whole outer tower II, (downspout also can be single cover or many covers certainly), every cover downspout comprises two deflector type down-flow plate I 31, the down-flow plate II 32 and the downflow weirs 4 that be arranged in parallel, for falling liquid passage 6, the upper end that falls the liquid passage is provided with the downflow weir 4 perpendicular to column plate II between two down-flow plates; The outer wall vertical setting of down-flow plate I31, down-flow plate II 32 and interior tower, the upper end of down-flow plate I 31 is connected lower end and column plate II and tower body fixed seal connection with the downflow weir 4 that upper strata column plate II goes up another set of downspout; The upper end of the down-flow plate II 32 that be arranged in parallel with down-flow plate I is connected with the lower end that upper strata column plate II goes up the down-flow plate I 31 ' of another downspout, is provided with liquid flow pass 35 between the other end and the column plate II; The length of all down-flow plates all equates that with the width of the outer tower of annular promptly the quadruplet downspout embeds in the outer tower.
The liquid systems that falls of interior tower comprises central well down take 34, middle seal pot 36, down flow apron 33, mozzle 39 and the annular seal pot 38 that passes through column plate I center; Middle seal pot and central well down take all are arranged to circle, middle seal pot is positioned at the below of central well down take, the diameter of central well down take is less than the diameter on the middle seal pot, the periphery of middle seal pot, down flow apron 33 and mozzle 39 have been arranged alternately perpendicular to the top of middle seal pot, mozzle is a upper shed type channel-section steel, seal pot in the middle of the bottom level of mozzle is higher than; The position that central well down take is positioned at column plate I top is correspondingly provided with center downflow weir 4 '; On the circumference of one deck column plate, be plate, and fixedly connected by inlet weir 7 under annular seal pot 38 is positioned at column plate I; The outlet correspondence of mozzle drops in the annular seal pot 38.
Column plate is horizontally set in the tower body, and the column plate II in column plate I in the interior tower and the outer tower is positioned on the same level, can certainly shift to install.Be provided with the rectangle air rising hole on the column plate, the top of air rising hole is provided with by the fixing calotte 5 of leg on the column plate; Calotte comprises side plate 53, top board 51 and is positioned at the side plate lower end and is used for the leg 54 of fixedlying connected with column plate, have circular spray-hole 52 on the side plate, space between top board and the side plate is skylight 55, and the space between calotte and the column plate is crack, the end, and the height in crack, the end is 12mm.
Present embodiment is when work, and the whole space of outer tower is separated into four symmetrical parts by the quadruplet downspout, and the liquid that every cover downspout flows down only flows through 1/4th spaces of every layer of column plate II, and the four partially liqs symmetry on the column plate II flows.Liquid alcohol is separated into four parts, descending from top of tower along the quadruplet downspout, flow down by the upper strata downspout, liquid flow pass 35 by down-flow plate II 32 belows enters column plate II, crossing downflow weir then enters downspout and flows into lower floor's column plate from falling liquid passage 6, the interior liquid phase integral body of tower is the mode co-flow in the shape of a spiral, and liquid counterclockwise flows on column plate.
In the interior tower, liquid alcohol is descending along falling liquid systems from top of tower, liquid is crossed inlet weir 7 by the annular seal pot around the tower wall and is flowed into column plate I, enter central well down take after crossing center downflow weir 4 ' then, and liquid falls to the center seal pot, be guided to the annular seal pot of lower floor's column plate after the process down flow apron distributes by mozzle, and then flow to the central well down take direction.Liquid flow direction on every layer of column plate I all is to flow to central well down take by tower body, realizes the moving type of flow of each layer column plate liquid co-flow in tower.
Gaseous state alcohol in the tower then successively rises from the air rising hole that the bottom of tower is passed on the column plate, and with after liquid alcohol fully contacts, it is spouting to carry the alcohol drop from the spray-hole of calotte and skylight in calotte; Because the boiling point difference of second alcohol and water in the alcohol, this gaseous state alcohol that carries drop separates in the formed space of adjacent tray, and water drops in the liquid alcohol and continues downwards to flow with liquid alcohol, is separated into pure water at the bottom of tower; Still become gaseous form to continue to rise and the boiling point of ethanol is low, isolate straight alcohol gas up to cat head with gaseous state alcohol.Finally finish distillation process.
Claims (8)
1. liquid parallel flow composite tower, comprise tower body (1) and the continuous mass transfer tower board of multilayer, every layer of continuous mass transfer tower board comprises the column plate that is provided with air rising hole, be positioned at the solid mass-transferring element of air rising hole top and fall liquid systems, it is characterized in that: described tower body is divided into interior tower (8) and outer tower (9), interior tower (8) is sleeved in the outer tower (9), be arranged with in parallel and interior tower (8) the corresponding column plate I of cross section (2) in the tower (8) in described, also be arranged with in parallel in the described outer tower (9) and outer tower (9) the corresponding column plate II of cross section (2 '), described column plate is provided with the liquid that can make on every layer of column plate and is the equidirectional mobile liquid systems that falls;
The liquid systems that falls that is provided with in the described outer tower is the downspout that is arranged alternately, every cover downspout comprises down-flow plate I (31), down-flow plate II (32) and downflow weir (4), for falling liquid passage (6), upper end, the down-flow plate I (31) that falls the liquid passage is provided with the downflow weir (4) perpendicular to column plate II between down-flow plate I (31) that be arranged in parallel and the down-flow plate II (32); Down-flow plate I (31), down-flow plate II (32) are provided with interior tower outer wall vertical, and the downflow weir (4) of another downspout is connected on the upper end of down-flow plate I (31) and the upper strata column plate, and lower end and column plate II are tightly connected; The lower end of the down-flow plate I (31 ') of another downspout is connected on the upper end of the down-flow plate II (32) that be arranged in parallel with down-flow plate I (31) and the upper strata column plate, is provided with liquid flow pass (35) between the lower end of down-flow plate II (32) and the column plate II;
The liquid systems that falls in described in the tower is positioned at the Nei Ta center, comprises the central well down take (34) that passes through column plate I center, middle seal pot (36), down flow apron (33), mozzle (39) and annular seal pot (38); The inlet ambient that goes up corresponding central well down take (34) at column plate I (2) is provided with coupled and exceeds the center downflow weir (4 ') on column plate I plane; The top of seal pot (36) in the middle of central well down take (34) is positioned at, the peripheral intervals of middle seal pot is provided with mozzle (39), is provided with down flow apron (33) between each mozzle (39); Annular seal pot (38) is positioned at the periphery of one deck column plate down, and draft tube outlets is corresponding with annular seal pot (38).
2. a kind of liquid parallel flow composite tower according to claim 1 is characterized in that: tower is cylindrical in described, and outer tower is an annular.
3. a kind of liquid parallel flow composite tower according to claim 1 is characterized in that: the down-flow plate structure that be arranged in parallel in the described outer tower is any one in deflector type, linear descending or the curvilinear style.
4. a kind of liquid parallel flow composite tower according to claim 3 is characterized in that: comprise by single cover in the described outer tower or overlap the liquid systems that falls that downspout forms more.
5. a kind of liquid parallel flow composite tower according to claim 1 is characterized in that: central well down take and middle seal pot in described in the tower are circle or regular polygon; Described mozzle is a kind of in round tube, rectangular tube or the upper shed channel-section steel; Described annular seal pot is fixedlyed connected with column plate I by inlet weir (7).
6. a kind of liquid parallel flow composite tower according to claim 1, it is characterized in that: described solid mass-transferring element is calotte (5), calotte comprises side plate (53), top board (51) and is positioned at the side plate lower end and is used for the leg (54) of fixedlying connected with column plate, space between top board and the side plate is skylight (55), leaves the space between calotte and the column plate.
7. a kind of liquid parallel flow composite tower according to claim 6 is characterized in that: the side plate of described calotte (5) is provided with spray-hole (52), spray-hole be shaped as in circle, rectangle, screen shape or the class squama shape any one.
8. a kind of liquid parallel flow composite tower according to claim 6 is characterized in that: the height in space is 0～25mm between described calotte and the column plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202190972U CN201799131U (en) | 2010-06-09 | 2010-06-09 | Liquid parallel flow combination tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202190972U CN201799131U (en) | 2010-06-09 | 2010-06-09 | Liquid parallel flow combination tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201799131U true CN201799131U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202190972U Expired - Lifetime CN201799131U (en) | 2010-06-09 | 2010-06-09 | Liquid parallel flow combination tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201799131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905089A (en) * | 2010-06-09 | 2010-12-08 | 石家庄工大化工设备有限公司 | Liquid parallel flow composite tower |
-
2010
- 2010-06-09 CN CN2010202190972U patent/CN201799131U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905089A (en) * | 2010-06-09 | 2010-12-08 | 石家庄工大化工设备有限公司 | Liquid parallel flow composite tower |
| CN101905089B (en) * | 2010-06-09 | 2012-02-15 | 石家庄工大化工设备有限公司 | Liquid parallel flow composite tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110420 Effective date of abandoning: 20120502 |