CN203609909U - Plate type hydrocyclone composite stripping tower - Google Patents
Plate type hydrocyclone composite stripping tower Download PDFInfo
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- CN203609909U CN203609909U CN201320631695.4U CN201320631695U CN203609909U CN 203609909 U CN203609909 U CN 203609909U CN 201320631695 U CN201320631695 U CN 201320631695U CN 203609909 U CN203609909 U CN 203609909U
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Abstract
The utility model relates to a plate type hydrocyclone composite stripping tower. A tower body of the composite stripping tower adopts a hollow vertical tower, a tower bottom liquid outlet is communicated with and formed in the bottom of the tower body, a liquid storage section is mounted at the bottom of a tower body of a desorption tower, a heating device is mounted in the liquid storage section, a hollow hydrocyclone section is coaxially arranged in the tower body above the liquid storage section, a hollow liquid distribution section is coaxially arranged in the tower body above the hydrocyclone section, a tower plate is coaxially arranged in the tower body above the liquid distribution section, a tower top liquid phase backflow inlet communicated with the tower body is mounted on the outer surface of the tower body at the top end of the tower plate, a defoaming section is coaxially arranged in the tower body above the tower top liquid phase backflow inlet, and a tower top steam outlet is formed in the top end of the inside of the tower body above the defoaming section. The stripping tower utilizes the hydrocyclone principle, so that desorption strength is enhanced, the height of a reaction tower is reduced, space and materials are saved, and the desorption effect of the reaction tower is improved.
Description
Technical field
The utility model belongs to chemical industry, environmental technology field, relates to distillation desorb reaction tower, especially a kind of board-like eddy flow composite steam stripping tower.
Background technology
Research shows that the excessive emissions of carbon dioxide is the major reason that causes the environmental problems such as global warming.China is also increasingly strict to the control of CO2 emission.In many CO2 emissions source, the most concentrated with the carbon dioxide of burning and exhausting, and concentration is higher, more for the benefit of absorbs.
For the improvement of carbon dioxide, adopt at present more method, be that the carbon dioxide in combustion product gases is absorbed, then the absorption liquid of enrichment is resolved, by carbon dioxide collection higher purity, carry out corresponding after-treatment, reach the target of the comprehensive regulation.
The technological process of carbon dioxide absorption and desorb is technology ripe and that realize commercial Application, adopting MEA or MDEA is absorbent, in solution after absorption, contain the carbon dioxide of 20% left and right, claim that this solution is rich solution, rich solution is passed in stripping apparatus, distill desorb, isolate carbon dioxide, in solution under residue, gas concentration lwevel is 7% left and right, claims that this solution is lean solution.Lean solution passes in absorption equipment, recycles as absorbent.
In whole flow process, distillation desorption process is the key that can this technology recycle absorbent, and the height of its desorption efficiency has directly affected the effect of absorption and the energy consumption of desorb height simultaneously, and different desorption methods has directly affected the cost of operation.Distillation desorption process is mainly to rely on steam to contact with liquid, and the heat of steam, by the material evaporation to be separated in solution, forms gaseous material and enters in follow-up flow process, to reach the object of solute and separated from solvent.Therefore, the power of the size of gas-liquid contact area, gas-liquid exchange has directly affected the efficiency of distillation desorb.
Conventional stripper form mainly contains packed tower and plate column at present, and plate column is divided into again sieve-plate tower, valve tray tower etc.Packed tower is to utilize the surface area of filler large, and the principle that gas-liquid contact area is large realizes desorb, treats that desorb holds the liquid filling surface of flowing through from top to bottom, steam flows through filler from bottom to top, two media contacts at filling surface, realizes stripping process, and its gas-liquid contact face is large, but its gas-liquid mass transfer intensity a little less than, cause packed tower volume huger, from great, filler easily stops up, opereating specification is little, and complex structure.Plate column is to utilize flow of solution through tray surfaces, through installing to strengthen gas-liquid mass transfer intensity on plate, thereby realizes the turriform of still-process, and multilayer column plate is wherein set, and template has multiple pattern optional.On column plate tower, height of liquid layer needs more strictly to control, and the situation of flooding easily occurs, and individual layer plate efficiency is lower, need series connection relatively multilayer column plate just can reach target efficiency and resistance is larger.
Known according to the principle of existing stripper plant, increase gas-liquid contact surface area or increase gas-liquid mass transfer intensity, can improve the effect of distillation desorb, improve desorption efficiency.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, a kind of board-like eddy flow composite steam stripping tower is provided, Novel stripping tower internals are installed in this tower body, this tower body utilizes the work of eddy flow principle, the feature of this tower body is that gas-liquid mass transfer intensity is high, can effectively improve the Srteam Stripping effect of this reaction tower, reduce resistance at the bottom of tower.
The purpose of this utility model is achieved through the following technical solutions:
A kind of board-like eddy flow composite steam stripping tower, the tower body of this composite steam stripping tower is the vertical tower of a hollow, liquid outlet at the bottom of a tower is installed in connection in tower body bottom, a liquid storage section is installed in tower body bottom at desorber, the eddy flow section of one hollow is coaxially set in the tower body above liquid storage section, the cloth liquid section of one hollow is coaxially set in the tower body above eddy flow section, in tower body above cloth liquid section, column plate is coaxially set, the tower body outer surface on column plate top is installed a tower top liquid phase reflux inlet being connected with tower body inside, one foam removal section is coaxially set in the tower body above tower top liquid phase reflux inlet, in tower body above foam removal section, top arranges an overhead vapours outlet,
Described eddy flow section comprises whirl cylinder and cyclone, the coaxial whirl cylinder that multiple hollows are installed in eddy flow section, in this whirl cylinder, cyclone is installed in bottom, cyclone comprises swirl vane axle and swirl vane, swirl vane circularizes arrangement, tilts to be installed on swirl vane axle around swirl vane axle, swirl vane axle is coaxial with whirl cylinder, between whirl cylinder and swirl vane axle, swirl vane is installed, top between each whirl cylinder and bottom are installed shrouding by sealing and are linked together, and the outer fringe seal of this shrouding is installed on tower body inner side.
And, bottom in the tower body of desorber coaxially arranges the liquid storage section of a hollow, a side in liquid storage section is installed a heater, or, described liquid storage section is installed on outside the tower body of desorber, utilizes communicating pipe to be connected with desorber, top communicating pipe delivering vapor, bottom communicating pipe delivered solution, on a side of liquid storage section bottom, a heater is installed.
And described eddy flow section is composed in parallel by multiple cyclones, coaxial series connection multi-layer rotational flow section in the tower body of liquid storage section top.
And described heater is electric heater, steam heater or hot oil heater.
And, the cloth liquid mode of described cloth liquid section take tree-shaped primary branch, pipe network parallel connection, overflow launder, nozzle evenly spray solution in a kind of cloth liquid mode.
And described column plate is dual-flow tray, carry potential overflow device column plate, sieve type column plate or tongue type column plate plural serial stage.
And described foam removal section adopts wire mesh demister or deflector-type separator.
And described swirl vane is the blade construction that propeller type tilts, its angle of inclination with axially become 30-60 degree, the blade shape of employing plane or curved surface, its perspective plane is rectangle or fan-shaped.
Advantage of the present utility model and good effect are:
1, the steam that the liquid storage section of this stripper generates, from bottom to top by cyclone, forms swirling eddy; Eddy flow section is cloth liquid section above, to treat that stripper solution passes in stripper by the distribution mode of different process demand, the some layers of cyclone of flowing through from top to bottom after solution enters, under the effect of swirling eddy, the cut granule drop that is dispersed into, and under air-flow effect upwards, form the drop section suspending, fully carry out its gas-liquid and also contact and reach gas-liquid mass transfer object; Column plate section is set in cloth liquid section and on column plate, carries out multiple condensation and the vaporescence that repeatedly distributes and reach the object of further gas-liquid mass transfer, on different column plates, form the liquid phase that component is different; Tower top arranges liquid-phase reflux pipeline and reaches the object that liquid phase is purified; In tower top foam removal section, the liquid particles carrying for removing desorption gas, to reach the object of purification desorption gas, this stripper utilizes eddy flow principle, has increased the intensity of desorb, has reduced the height of reaction tower, save space and material, improved the desorption effect of reaction tower.
2, this stripper, packed tower volume is less relatively, deadweight is lighter, and tower internals circulation diameter is larger, should not stop up, and opereating specification is larger.
3, the relative plate column of this stripper, eddy flow section individual layer mass transfer effect is stronger, flooding situation also can effectively be alleviated and also resistance less.
Accompanying drawing explanation
Figure l is structure partial cutaway view of the present utility model;
Fig. 2 is the structure enlarged diagram of eddy flow section in Fig. 1;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the axle side schematic diagram of the utility model cyclone.
The specific embodiment
As an example of accompanying drawing embodiment example, the utility model is described in further detail below, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of board-like eddy flow composite steam stripping tower, as shown in Figure 1, the tower body 4 of this composite steam stripping tower is the vertical tower of a hollow, the bottom of this tower body is provided with supporting leg 1, liquid outlet 2 at the bottom of a tower is installed in connection in tower body bottom.
Bottom in composite steam stripping tower tower body is coaxially arranged with the liquid storage section 3 of a hollow, storage solutions in this liquid storage section, this storage solutions amount can meet the evaporation capacity of ten minutes, at liquid storage section one side, one heater 5 is installed, heater can be used electric heater, steam heater or heat conduction wet goods heater, and heating power is according to institute's calorific requirement configuration in desorb; Or liquid storage section and heater also can be used as independently equipment and are installed on beyond desorb tower body, utilize communicating pipe to be connected with desorber, top communicating pipe delivering vapor, bottom communicating pipe delivered solution, on a side of liquid storage section bottom, a heater is installed.
The eddy flow section 6 of one hollow is coaxially set in the tower body above liquid storage section, this eddy flow section is composed in parallel by multiple cyclones, also the multi-layer rotational flow section of can coaxially connecting in the tower body of liquid storage section top, the two-layer eddy flow section of coaxial series connection in the tower body of liquid storage section top in the present embodiment, every layer of eddy flow section composed in parallel by 4 cyclones.
The cloth liquid section 7 of one hollow is coaxially set in the tower body above eddy flow section, in the present embodiment, takes single tube end that the cloth liquid mode of nozzle is installed, also can take the various ways such as tree-shaped primary branch, pipe network parallel connection, overflow launder.In tower body above cloth liquid section, column plate 8 is coaxially set, this column plate can be dual-flow tray, carry potential overflow device column plate, sieve type column plate, tongue type column plate plural serial stage, takes 3 grades of series connection of dual-flow tray in the present embodiment.The tower body outer surface on column plate top is installed a tower top liquid phase reflux inlet 9 being connected with tower body inside, and a foam removal section 10 is coaxially set in the tower body above tower top liquid phase reflux inlet, and foam removal section can adopt wire mesh demister or deflector-type separator.In tower body above foam removal section, top arranges an overhead vapours outlet 11.
As Figure 2-3, described eddy flow section comprises whirl cylinder and cyclone (in figure not label), and in eddy flow section, the coaxial whirl cylinder 15 that multiple hollows are installed, for example, can be 2～6, the high 300mm-1000mm of this whirl cylinder.In this whirl cylinder, cyclone is installed in bottom, cyclone comprises swirl vane axle 13 and swirl vane 14, swirl vane circularizes arrangement around swirl vane axle, and tilt to be installed on swirl vane axle, swirl vane axle is coaxial with whirl cylinder, between whirl cylinder and swirl vane axle, swirl vane is installed, the internal diameter of whirl cylinder is identical with the external diameter of swirl vane.Swirl vane is the blade construction that propeller type tilts, its angle of inclination with axial become 30-60 degree, the quantity of this swirl vane can be determined as the case may be, and six swirl vanes are set in the present embodiment; In the present embodiment, the angle of inclination of swirl vane and axis direction is 30 degree; Swirl vane can be taked plane or curve form, and the present embodiment is plane blade; The profile of projecting blade can be rectangle or fan-shaped, and the present embodiment is fan-shaped.Top between each whirl cylinder and bottom are installed shrouding 12 by sealing and are linked together, the outer fringe seal of this shrouding is installed on tower body inner side, this shrouding can prevent flue gas short circuit, and by the enclosed cross of the desorber tower body beyond whirl cylinder, this shrouding can be welded on whirl cylinder.
The operation principle of the board-like eddy flow composite steam stripping of the utility model tower is as follows:
Treat that steam stripped solution is entered in stripper by the pipeline of cloth liquid section 7, from top to bottom the effect of gravity downstream to liquid storage section 3 in, keep certain liquid level in liquid storage section, at least to exceed heater 5.Heater heats the solution in liquid storage section, to the steam of the rear lasting heating of boiling with generation stable quantity.The steam eddy flow section 6 of flowing through from bottom to top, under the effect of swirl vane 14, form spiral helicine air-flow, upwards flow along whirl cylinder 15, eddy flow section is cloth liquid section above, to treat that stripper solution passes in stripper by the distribution mode of different process demand, the some layers of cyclone of flowing through from top to bottom after solution enters, spiral helicine air-flow contacts with top-down solution in whirl cylinder, solution is broken and is divided into droplet under the effect of swirling eddy, the drop that diameter is less than dividing diameter can move upward with air-flow from bottom to top, and in motion process, aggregate into gradually the drop of larger particles, under the effect of gravity, fall, this process can ceaselessly move in circles, in macroscopic view, will in whirl cylinder 15, form one section of gas-liquid suspension section, there is violent effect of mass transmitting in gas-liquid two-phase in this suspension section, realize carrying that the solute in solution is taken out of by steam and heated up in a steamer effect.Solute gas and steam move upward jointly, pass through multiple condensation and repeatedly partly vaporize and reach the object of further gas-liquid mass transfer on column plate 8, form the liquid phase that component is different on different column plates, reach the effect of rectifying.Drop gas being carried through foam removal section 10 catches and removes, purified gas enters condenser through overhead vapours outlet 11 after revolving point, condenser phegma is got back to stripper top by tower top liquid phase reflux inlet 9, and stripping product introduction follow-up equipment is further processed.Tower top arranges liquid-phase reflux pipeline and reaches the object that liquid phase is purified; In tower top foam removal section, the liquid particles carrying for removing desorption gas, to reach the object of purification desorption gas.
Claims (8)
1. a board-like eddy flow composite steam stripping tower, the tower body of this composite steam stripping tower is the vertical tower of a hollow, liquid outlet at the bottom of a tower is installed in connection in tower body bottom, it is characterized in that: a liquid storage section is installed in the tower body bottom at desorber, the eddy flow section of one hollow is coaxially set in the tower body above liquid storage section, the cloth liquid section of one hollow is coaxially set in the tower body above eddy flow section, in tower body above cloth liquid section, column plate is coaxially set, the tower body outer surface on column plate top is installed a tower top liquid phase reflux inlet being connected with tower body inside, one foam removal section is coaxially set in the tower body above tower top liquid phase reflux inlet, in tower body above foam removal section, top arranges an overhead vapours outlet,
Described eddy flow section comprises whirl cylinder and cyclone, the coaxial whirl cylinder that multiple hollows are installed in eddy flow section, in this whirl cylinder, cyclone is installed in bottom, cyclone comprises swirl vane axle and swirl vane, swirl vane circularizes arrangement, tilts to be installed on swirl vane axle around swirl vane axle, swirl vane axle is coaxial with whirl cylinder, between whirl cylinder and swirl vane axle, swirl vane is installed, top between each whirl cylinder and bottom are installed shrouding by sealing and are linked together, and the outer fringe seal of this shrouding is installed on tower body inner side.
2. board-like eddy flow composite steam stripping tower according to claim 1, is characterized in that: the bottom in the tower body of desorber coaxially arranges the liquid storage section of a hollow, at liquid storage section one side, one heater is installed.
3. board-like eddy flow composite steam stripping tower according to claim 1 and 2, is characterized in that: described eddy flow section is composed in parallel by multiple cyclones, coaxial series connection multi-layer rotational flow section in the tower body of liquid storage section top.
4. board-like eddy flow composite steam stripping tower according to claim 2, is characterized in that: described heater is electric heater, steam heater or hot oil heater.
5. board-like eddy flow composite steam stripping tower according to claim 1 and 2, is characterized in that: the cloth liquid mode of described cloth liquid section take tree-shaped primary branch, pipe network parallel connection, overflow launder, nozzle evenly spray solution in a kind of cloth liquid mode.
6. board-like eddy flow composite steam stripping tower according to claim 1 and 2, is characterized in that: described column plate is dual-flow tray, carry potential overflow device column plate, sieve type column plate or tongue type column plate plural serial stage.
7. board-like eddy flow composite steam stripping tower according to claim 1 and 2, is characterized in that: described foam removal section adopts wire mesh demister or deflector-type separator.
8. board-like eddy flow composite steam stripping tower according to claim 1 and 2, it is characterized in that: described swirl vane is the blade construction that propeller type tilts, its angle of inclination with axially become 30-60 degree, the blade shape of employing plane or curved surface, its perspective plane is rectangle or fan-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320631695.4U CN203609909U (en) | 2013-10-14 | 2013-10-14 | Plate type hydrocyclone composite stripping tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320631695.4U CN203609909U (en) | 2013-10-14 | 2013-10-14 | Plate type hydrocyclone composite stripping tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203609909U true CN203609909U (en) | 2014-05-28 |
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ID=50762592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320631695.4U Expired - Fee Related CN203609909U (en) | 2013-10-14 | 2013-10-14 | Plate type hydrocyclone composite stripping tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203609909U (en) |
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2013
- 2013-10-14 CN CN201320631695.4U patent/CN203609909U/en not_active Expired - Fee Related
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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: 20140528 Termination date: 20151014 |
|
| EXPY | Termination of patent right or utility model |