CN204996153U - Hexane rectifying column - Google Patents
Hexane rectifying column Download PDFInfo
- Publication number
- CN204996153U CN204996153U CN201520690870.6U CN201520690870U CN204996153U CN 204996153 U CN204996153 U CN 204996153U CN 201520690870 U CN201520690870 U CN 201520690870U CN 204996153 U CN204996153 U CN 204996153U
- Authority
- CN
- China
- Prior art keywords
- column plate
- column
- deflector
- rectifying column
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 3
- 238000001595 flow curve Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model provides a space is crisscross to set up its characterized in that: that hexane rectifying column, top and bottom are equipped with feed inlet and discharge gate respectively, are provided with the column plate of sandwich tape sieve mesh below the feed inlet until the discharge gate, and column plate only one end is equipped with the space that is used for the downward laminar flow of liquid to move with the tower inner wall, the adjacent layer column plate the last fixed surface of column plate is equipped with the guide plate, and the guide plate is in the same direction as the liquid flow to being provided with many, the sieve mesh sets up between the guide plate, and the aperture of sieve mesh is 8.5mm-12mm. The utility model discloses column plate structure to the rectifying column is improved for liquid is improved by obvious at the vortex state of the mobile in -process of column plate, has consequently improved column plate work efficiency. The aperture of sieve mesh on the column plate is rationally set up, the work efficiency of rectifying column and the quality that promotes the product can be obviously improved.
Description
Technical field
The utility model relates to chemical industry equipment, is a kind of hexane rectifying column specifically.
Background technology
Hexane is according to azeotropic principles, moisture thick hexane rectifying uses dehydrating tower to refine, use sieve tray, tower reactor obtains highly purified smart hexane, the water of tower top and the azeotropic mixture of hexane through condensation, cool after get back to the hexane aqueous solution of water distributing can and raw material, after water is separated, returns dehydrating tower and refine.But the liquid flow on column plate can produce eddy current, as shown in Figure 2, especially at the position, both sides of column plate, eddy current is obvious, reduces the efficiency of column plate.
Owing to easily separating out component containing some low-molecular-weight wax etc. in raw material, clogging is there is for avoiding the sieve aperture of rectifying column in operation on column plate, have a strong impact on mass transfer effect, need to calculate through accurate the structural parameters of sieve aperture, should make tower within the scope of operating flexibility, have higher efficiency, again can not because of the larger phenomenon of leakage occurring column plate of sieve aperture.
Rectifying column construction has high input, and can improve rectifying product quality and efficiency, and increase economic efficiency if can raise the efficiency.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of hexane rectifying column, makes rectifying column pass through to improve tower plate structure, improves rectification efficiency.
Described hexane rectifying column, top and bottom are respectively equipped with charging aperture and discharging opening, until discharging opening is provided with the column plate of sandwich tape sieve aperture below charging aperture, column plate only one end and inner wall of tower is provided with the space moved to underflow for liquid, the space of adjacent layer column plate is crisscross arranged, it is characterized in that: the upper surface of described column plate is fixed with deflector, described deflector is provided with many along flow direction; Described sieve aperture is arranged between deflector, and the aperture of sieve aperture is 8.5mm ~ 12mm.
Further, the setting of described deflector distributes with the axisymmetrical of middle part longitudinal direction.
As prioritization scheme, described rectifying column inner wall section is circular, and deflector is arranged according to natural flow curve convex is bending.
Typically, the spacing between described deflector and the spacing between outermost deflector and tower wall are 80mm ~ 280mm.
Typically, the tray spacing between described adjacent layer is 300mm ~ 500mm.
The utility model improves for the tower plate structure of rectifying column, the turbulent state of liquid in column plate flow process is significantly improved, column plate eliminates vortex substantially, and the flow pattern on column plate presents comparatively ideal plug flow regime, therefore improves column plate operating efficiency.Meanwhile, calculate through precision, the aperture of sieve aperture on column plate is rationally set, makes tower within the scope of operating flexibility, have higher efficiency, prevent the blocking of low-molecular-weight wax, prevent again the column plate phenomenon of leakage.Coordinate other means, the operating efficiency of rectifying column and the quality of improving product can be significantly improved.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram,
Fig. 2 is without liquid flowing state schematic diagram on column plate during deflector,
Fig. 3 is liquid flowing state schematic diagram on column plate when having deflector.
In figure: 1-charging aperture, 2-column plate, 3-deflector, 4-flow direction, 5-discharging opening.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated: as shown in Figure 1, described hexane rectifying column, top and bottom are respectively equipped with charging aperture 1 and discharging opening 5, thick hexane to be purified enters in tower by charging aperture, usually after caning be passed through the rectifying of upper and lower tower, lower tower arranges falling-film reboiler, makes the fluid molecule of tower reactor accept heat fast and becomes gas molecule, decreases the sex change of solid that low-molecular-weight wax etc. is easy to separate out, decomposition and coking.The water of tower top and the azeotropic mixture of hexane are output recirculation, and namely the tower bottom of lower tower obtains smart hexane.
Until discharging opening is provided with the column plate 2 of sandwich tape sieve aperture below charging aperture in tower, column plate only one end and inner wall of tower is provided with the space moved to underflow for liquid, and the space of adjacent layer column plate is crisscross arranged, and liquid stream forms single overflow.Tray spacing between described adjacent layer is 400mm.
As Fig. 3, the upper surface of described column plate is fixed with deflector 3, and the setting of described deflector is with the distribution of the axisymmetrical of middle part longitudinal direction, and described rectifying column inner wall section is circular, and deflector is arranged according to natural flow curve convex is bending.Spacing between described deflector and the spacing embodiment between outermost deflector and tower wall are 120mm, and described deflector is provided with many along flow direction; Column plate eliminates vortex substantially, and the flow pattern on column plate presents comparatively ideal plug flow regime.
Described sieve aperture is arranged between deflector, for avoiding rectifying column in operation owing to easily separating out component containing some low-molecular-weight wax etc. in raw material, makes the sieve aperture on column plate occur clogging, and through calculating, the aperture arranging sieve aperture is 10.5mm.Make tower within the scope of operating flexibility, have higher efficiency, again can not because of the larger phenomenon of leakage occurring column plate of sieve aperture.Deflector arrange minimizing eddy current back-mixing region, arranging the gradient of the liquid layer reduced on column plate of sieve aperture, both will effectively improve the mass-transfer efficiency of column plate.
Claims (5)
1. a hexane rectifying column, top and bottom are respectively equipped with charging aperture (1) and discharging opening (5), until discharging opening is provided with the column plate (2) of sandwich tape sieve aperture below charging aperture, column plate only one end and inner wall of tower is provided with the space moved to underflow for liquid, the space of adjacent layer column plate is crisscross arranged, it is characterized in that: the upper surface of described column plate is fixed with deflector (3), and described deflector is provided with many along flow direction; Described sieve aperture is arranged between deflector, and the aperture of sieve aperture is 8.5mm ~ 12mm.
2. hexane rectifying column according to claim 1, is characterized in that: the setting of described deflector distributes with the axisymmetrical of middle part longitudinal direction.
3. hexane rectifying column according to claim 1 and 2, is characterized in that: described rectifying column inner wall section is for circular, and deflector is arranged according to natural flow curve convex is bending.
4. hexane rectifying column according to claim 1 and 2, is characterized in that: the spacing between described deflector and the spacing between outermost deflector and tower wall are 80mm ~ 280mm.
5. hexane rectifying column according to claim 1, is characterized in that: the tray spacing between described adjacent layer is 300mm ~ 500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520690870.6U CN204996153U (en) | 2015-09-08 | 2015-09-08 | Hexane rectifying column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520690870.6U CN204996153U (en) | 2015-09-08 | 2015-09-08 | Hexane rectifying column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204996153U true CN204996153U (en) | 2016-01-27 |
Family
ID=55153060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520690870.6U Expired - Fee Related CN204996153U (en) | 2015-09-08 | 2015-09-08 | Hexane rectifying column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204996153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787477A (en) * | 2019-11-18 | 2020-02-14 | 沈阳派司钛设备有限公司 | Novel titanium-molybdenum-nickel tower device for butanone oxime |
-
2015
- 2015-09-08 CN CN201520690870.6U patent/CN204996153U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787477A (en) * | 2019-11-18 | 2020-02-14 | 沈阳派司钛设备有限公司 | Novel titanium-molybdenum-nickel tower device for butanone oxime |
| CN110787477B (en) * | 2019-11-18 | 2023-08-25 | 沈阳派司钛设备有限公司 | Novel titanium molybdenum nickel tower device for butanone oxime |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |