CN203454609U - New type convection tower - Google Patents
New type convection tower Download PDFInfo
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- CN203454609U CN203454609U CN201320511762.9U CN201320511762U CN203454609U CN 203454609 U CN203454609 U CN 203454609U CN 201320511762 U CN201320511762 U CN 201320511762U CN 203454609 U CN203454609 U CN 203454609U
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Abstract
The utility model discloses a new type convection tower, comprising a cylinder, wherein the cylinder is arranged in the vertical direction; more than three layers of tower plates are vertically arranged at intervals in the cylinder; the top of the cylinder is provided with a liquid nitrogen inlet pipe; the lower part of the cylinder is provided with an air inlet pipe; the bottom end of the cylinder is provided with a lower end socket; the lower end socket is provided with a liquid air discharge pipe downwardly; each layer of tower plate comprises a pore plate part in the middle and pore-free plate parts on two sides; overflow hoppers are arranged between the pore-free plates part on one side and the pore plate parts; except the bottommost layer of tower plate, the overflow hopper of each layer of tower plate corresponds to the pore-free plate part of the lower layer of tower plate in position; the horizontal sections of the inlet weirs of the overflow hoppers of the tower plates are in the shape of a bending circular arc respectively; the horizontal sections of the outlet weirs of the pore-free plate parts are also in the shape of a bending circular arc respectively corresponding to the horizontal sections of the inlet weirs of the overflow hoppers. According to the new type convection tower, as overflow weirs are synchronously increased, the overflow strength is synchronously decreased by 40%, which is harmonious with the optimized air speed of an empty tower; the liquid level is uniform; the tower is lowered; the tower diameter is decreased as well; equipment is lightened; therefore, the transportation cost is reduced, and the production material cost is reduced as well.
Description
Technical field
The utility model relates to a kind of novel convection tower.
Background technology
In air separation unit, rectifying column is the nucleus equipment that carries out rectifying, and the quality of its design is determining the performance of a whole set of air separation unit.Advantages the such as at present rectifying column of air separation unit has two kinds of sieve-plate tower and packed towers, and packed tower is mainly used in tower and argon column, and sieve-plate tower is because it is simple in structure, and consumptive material is few, easy to process, and easily maintenance and cost be low and be widely used in the lower tower of rectifying column.The primary structure of sieve-plate tower has two kinds, and the one, circular flow tray, the 2nd, counter-flow tray.Because circulation sieve-plate tower equipment making is complicated, stock utilization is low, and full tower weight amount weighs 40 ~ 50% compared with counter-flow tray, and therefore air separation plant seldom adopts circular flow tray at present.Convection current sieve-plate tower is made simple with it, stock utilization is high, the main flow that plate efficiency is high, low resistance and other advantages becomes rectifying column.
Along with making rapid progress and the empty expanding day that divides scale of space division technique flow process, rectifying column is divided into the types such as single overflow, double overflow and multi-overflow.The column plate of rectifying column meets the requirement of hydrodynamics technique, need to optimize this pair of parameter of empty tower gas velocity and overflow intensity.With rational empty tower gas velocity, determine column plate diameter, often cause that overflow intensity is excessive.The utility model provides at column plate diameter one regularly, increases the solution of downflow weir length.
Utility model content
The purpose of this utility model is to provide a kind of novel convection tower, meets the tower diameter of empty tower gas velocity, meets rational overflow intensity simultaneously, optimizes the hydrodynamics situation of column plate.
For achieving the above object, novel convection tower of the present utility model comprises the cylindrical shell of vertical setting, in cylindrical shell, be arranged at intervals with up and down three layers of above column plate, cylindrical shell top is provided with liquid nitrogen inlet tube, cylindrical shell bottom is provided with air intlet pipe, cylindrical shell bottom is provided with low head, and low head is to having liquid air delivery pipe; Each layer of tower plate structure is identical, includes the orifice plate part at middle part and the imperforate plate part of both sides, between a side imperforate plate part and orifice plate part, is provided with overflow downcomer; Except basecoat column plate, the overflow downcomer of each layer of column plate is corresponding with the position of the imperforate plate part of lower one deck column plate.
The horizontal cross-section of the inlet weir of described column plate overflow downcomer is crooked circular arc; The horizontal cross-section of the exit weir of described imperforate plate part is corresponding with described overflow downcomer is crooked circular arc.
Described overflow downcomer outside is fixed on column plate by retainer ring and pressure ring.
Advantage of the present utility model has:
(1) downflow weir increases by a year-on-year basis, and overflow intensity reduces by 40% on year-on-year basis, brings out the best in each other with the empty tower gas velocity of optimizing; (2) glide path length is consistent, makes liquid level even.(3) compare with traditional convection tower, the utility model tower height reduces, and tower diameter reduces, and weight of equipment reduces, and reduces cost of transportation, and saves production material cost; (4) counter-flow tray can become single overflow (in the past needed to adopt the convection tower of double overflow structure, use structure of the present utility model then can adopt single overflow structure) from double overflow, and the rheology of overflowing is double overflow, simplifies flow structure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is cross-sectional structure schematic diagram of the present utility model;
Fig. 3 is the A-A cutaway view of Fig. 2.
The specific embodiment
As shown in Figure 1, novel convection tower of the present utility model comprises the cylindrical shell 5 of vertical setting, cylindrical shell 5 is interior is arranged at intervals with three layers of above column plate 6 up and down, cylindrical shell 5 tops are provided with liquid nitrogen inlet tube 7, cylindrical shell 5 bottoms are provided with air intlet pipe 4, cylindrical shell 5 bottoms are provided with low head 2, and low head 2 is to having liquid air delivery pipe 1.The cylindrical shell 5 of low head 2 tops is provided with bearing 3.
Each layer of column plate 6 structure are identical, include between the orifice plate part 11 at middle part and imperforate plate part 12, the one side imperforate plate parts 12 of both sides and orifice plate part 11 and are provided with overflow downcomer 8; Except basecoat column plate 6, the overflow downcomer 8 of each layer of column plate 6 is corresponding with the position of the imperforate plate part 12 of lower one deck column plate 6.
The horizontal cross-section of the inlet weir 21 of described overflow downcomer 8 is crooked circular arc; The horizontal cross-section of the exit weir 22 of described imperforate plate part 12 is corresponding with described overflow downcomer 8 is crooked circular arc.
The outside of described overflow downcomer 8 is fixed on column plate 6 by retainer ring 9 and pressure ring 10.
Convection tower of the present utility model is according to technique unit requirement, serves the needs of technological process, is based on advanced technology, cost aim low, safe and effective, that be convenient to promote and researches and develops.Owing to having adopted horizontal cross-section to be the structures such as the overflow downcomer inlet weir of crooked circular arc and imperforate plate section port weir, the utility model can either meet the tower diameter of empty tower gas velocity, meets again rational overflow intensity simultaneously, optimizes the hydrodynamics situation of column plate 6.
Claims (3)
1. novel convection tower, comprises and it is characterized in that the cylindrical shell of vertical setting: in cylindrical shell, be arranged at intervals with up and down three layers of above column plate, cylindrical shell top is provided with liquid nitrogen inlet tube, cylindrical shell bottom is provided with air intlet pipe, and cylindrical shell bottom is provided with low head, and low head is to having liquid air delivery pipe;
Each layer of tower plate structure is identical, includes the orifice plate part at middle part and the imperforate plate part of both sides, between a side imperforate plate part and orifice plate part, is provided with overflow downcomer; Except basecoat column plate, the overflow downcomer of each layer of column plate is corresponding with the position of the imperforate plate part of lower one deck column plate.
2. novel convection tower according to claim 1, is characterized in that: the horizontal cross-section of the inlet weir of described column plate overflow downcomer is crooked circular arc; The horizontal cross-section of the exit weir of described imperforate plate part is corresponding with described overflow downcomer is crooked circular arc.
3. novel convection tower according to claim 1 and 2, is characterized in that: described overflow downcomer outside is fixed on column plate by retainer ring and pressure ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511762.9U CN203454609U (en) | 2013-08-21 | 2013-08-21 | New type convection tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511762.9U CN203454609U (en) | 2013-08-21 | 2013-08-21 | New type convection tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203454609U true CN203454609U (en) | 2014-02-26 |
Family
ID=50134476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320511762.9U Expired - Lifetime CN203454609U (en) | 2013-08-21 | 2013-08-21 | New type convection tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203454609U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032764A (en) * | 2015-08-27 | 2015-11-11 | 广东石油化工学院 | Rectification separation device for solid powder |
| CN114322454A (en) * | 2021-12-24 | 2022-04-12 | 海澜智云科技有限公司 | Industrial Internet intelligent air separation device based on 5G network |
-
2013
- 2013-08-21 CN CN201320511762.9U patent/CN203454609U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032764A (en) * | 2015-08-27 | 2015-11-11 | 广东石油化工学院 | Rectification separation device for solid powder |
| CN114322454A (en) * | 2021-12-24 | 2022-04-12 | 海澜智云科技有限公司 | Industrial Internet intelligent air separation device based on 5G network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |