CN211595586U - Multi-linkage combined esterification tower - Google Patents
Multi-linkage combined esterification tower Download PDFInfo
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- CN211595586U CN211595586U CN201922104048.8U CN201922104048U CN211595586U CN 211595586 U CN211595586 U CN 211595586U CN 201922104048 U CN201922104048 U CN 201922104048U CN 211595586 U CN211595586 U CN 211595586U
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Abstract
The utility model provides a multi-linkage combined esterification tower, which comprises an upper-section tower body, a middle-section tower body, a lower-section tower body and a skirt stand; the top of the upper section tower body is provided with an exhaust port, the side part of the upper section tower body is provided with a liquid inlet pipe, and the inside of the upper section tower body is provided with at least one group of liquid distributors and structured packing units; a plurality of coaxially arranged reaction discs are uniformly distributed in the middle-section tower body from top to bottom, the bottoms of the reaction discs are provided with down-flow holes, the side walls of the reaction discs are provided with jet holes, and the jet holes are externally connected with jet pipelines; the lower section of the tower body is internally provided with a baffling channel flowing from the center to the periphery, the innermost channel of the baffling channel is an inlet end and is used for receiving liquid of the middle section of the tower body, the outermost top end of the baffling channel is open and is communicated with the middle section of the tower body, a liquid outlet is formed in the side wall of the lower section of the tower body, and the bottom end of the lower section of the tower body is provided with an aeration pipeline. The multi-linkage combined esterification tower has the advantages of fully contacting and reacting raw material liquid and gas to a greater extent, increasing reaction area and time and adopting various modes for linkage mixing.
Description
Technical Field
The utility model relates to an esterification tower, specific theory has related to a many combination formula esterification towers that move.
Background
Compared with the traditional petrochemical energy, the biodiesel has low sulfur and aromatic hydrocarbon content, high flash point, high cetane number and good lubricity, and can be partially added into the petrochemical diesel, so that the biodiesel is real green diesel. With the worldwide shortage of energy and the increasing attention of people on environmental protection, the development and research of biodiesel, a green environment-friendly fuel, to replace the continuously exhausted petroleum, has become a technical problem to be solved urgently at present, so far, the preparation method of biodiesel is mainly prepared from methanol and grease through ester exchange reaction, and the main equipment used is called as an esterification reaction tower.
The esterification reaction tower plays an important role in the preparation process of the biodiesel. Its main function is to make the gas phase and liquid phase contact closely to achieve the purpose of mass and heat transfer. The tower equipment has been developed for a long time to form a structure with various forms so as to meet the requirements of various aspects. As the tower equipment mainly used for the mass transfer process, firstly, the gas phase and the liquid phase can be fully contacted to obtain higher mass transfer efficiency, and in addition, in order to meet the requirements of industrial production, the tower equipment also has the advantages of considering the production capacity, stable operation, small fluid flow resistance, simple structure, corrosion resistance and difficult blockage. It is in fact impossible to fully satisfy all the above requirements for any of the tower types currently available, but it is only unique in some respects.
The pursuit of high efficiency, large production capacity and stability of people promotes the continuous appearance and development of new structural forms of tower equipment.
Disclosure of Invention
The utility model aims at the not enough of prior art to a messenger's raw materials liquid and gaseous abundant contact, reaction that furthest is provided, increase reaction area and time, adopt the multi-linkage combination formula esterification tower that mixes of multiple mode linkage.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a multi-linkage combined esterification tower comprises an upper section tower body, a middle section tower body, a lower section tower body and a skirt which is used as a bottom support, wherein the upper section tower body, the middle section tower body and the lower section tower body are sequentially communicated;
the top of the upper-section tower body is provided with an exhaust port, the side part of the upper-section tower body is provided with a liquid inlet pipe, the outlet of the liquid inlet pipe is arranged on the axis of the upper-section tower body, the inner part of the upper-section tower body is arranged below the outlet of the liquid inlet pipe and is provided with at least one group of liquid distributors and a structured packing unit, and the lower end of the structured packing unit is provided with a packing support grid;
a plurality of coaxially arranged reaction discs with flared tops and closed bottoms are uniformly distributed in the middle-section tower body from top to bottom, a down-flow hole is formed in the closed bottom position of each reaction disc, a jet hole with a jet angle tangent to the side wall of each reaction disc is formed in the side wall of each reaction disc, and the jet hole is externally connected with a jet pipeline;
the lower section of the tower body is internally provided with a deflection channel which flows from the center to the periphery, the deflection plates of the deflection channel are longitudinally arranged, the innermost channel of the deflection channel is an inlet end and is used for receiving liquid of the middle section of the tower body, the outermost top end of the deflection channel is open and is communicated with the middle section of the tower body, a liquid outlet is formed in the side wall of the lower section of the tower body, the bottom end of the lower section of the tower body is provided with an aeration pipeline, and the aeration pipeline extends into the deflection channel.
Basically, the top of the lower section of the tower body corresponds to the middle tower body and is provided with a liquid receiving disc with a top flaring and a bottom closing-in, the closing-in of the liquid receiving disc is provided with a down-flow hole, and the diameter of the innermost layer channel of the baffling channel is larger than that of the down-flow hole of the liquid receiving disc.
Basically, the diameters of the reaction discs are sequentially increased from top to bottom.
Basically, be equipped with 1 at least injection hole on the reaction disc lateral wall, the injection hole is along vertical and circumference align.
Basically, the baffling passageway in the lower segment tower body is established by the sleeve of a plurality of coaxial different footpaths in proper order and is constituted, and concentric telescopic bottom interval sets up the baffle in order to form the baffling passageway, and concentric telescopic top is all uncovered.
Basically, the tail end of the aeration pipe is uniformly provided with dispersion holes, and the baffle plates divide the dispersion holes and respectively correspond to different baffling flow channels.
Basically, the top of the upper tower body is provided with a spherical baffle for preventing sputtering.
Basically, the reaction disc is conical or spherical crown-shaped or oval.
Compared with the prior art, the utility model has substantive characteristics and progress, in particular to the utility model, three tower structures are adopted for linkage, specifically, the upper tower body adopts a liquid distributor, the injected liquid is uniformly sprayed into the regular packing units at the lower part, and multiple groups can be arranged according to the property of the liquid until the liquid can be dispersed relatively uniformly, and meanwhile, the gas from the lower part is contacted with the liquid for the first time; the dispersed liquid flows into the middle-section tower body, the reaction disc of the middle-section tower body receives the liquid, and airflow tangential to the reaction disc is sprayed from the spray holes at the side parts, so that the liquid does high-speed circular motion in the reaction disc, the stirring effect is achieved, most of the liquid flows into the next layer of reaction disc along the liquid descending holes, and a small part of the liquid overflows from the top of the reaction disc and enters the lower layer of reaction disc; the liquid fully reacted in the middle-section tower body continuously flows downwards to the lower-section tower body, flows outwards from the center in the lower-section tower body along the deflection channel, is fully reflected with the gas filled in the aeration pipe, the excessive gas enters the middle-section tower body and the upper-section tower body from the top end of the deflection channel and is reflected with the fluid above, and the fluid is discharged from the liquid discharge port after passing through the deflection channel, so that the whole reaction process is finished.
Because the gas-liquid mixed reaction is carried out by adopting a plurality of structural modes, and the optimization and the association can be realized between the gas-liquid mixed reaction and the gas-liquid mixed reaction, the optimal reaction can be realized between the gas-liquid mixed reaction and the gas-liquid mixed reaction, the reaction efficiency is greatly improved, the whole flow is prolonged in a non-monotonous way, the area and the time of full contact of the gas and the liquid are improved, and the reaction stability can be ensured because the structure is relatively simple.
Drawings
Fig. 1 is a schematic view of the overall structure of a multi-linkage combined esterification tower of the present invention.
Fig. 2 is a schematic structural view of an upper tower body in the present invention.
Fig. 3 is a schematic structural diagram of the middle-section tower body of the present invention.
Fig. 4 is a schematic structural view of the tower body of the middle-lower segment of the present invention.
Fig. 5 is a schematic structural diagram of the reaction tray of the present invention.
Fig. 6 is a schematic structural diagram of the assembled reaction disk of the present invention.
In the figure: 1. an upper section of the tower body; 2. a middle tower body; 3. a lower section of tower body; 4. a skirt; 11. an exhaust port; 12. a spherical baffle; 13. a liquid inlet pipe; 14. a liquid distributor; 15. a structured packing unit; 16. a filler support grid; 17. a manhole; 21. a reaction disc; 22. a downcomer hole; 23. an injection hole; 24. an air injection pipeline; 31. a deflection channel; 32. a sleeve; 33. a baffle plate; 34. a liquid receiving disc; 35. an aeration pipe; 36. a dispersion hole; 37. and a liquid outlet.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
As shown in fig. 1, a multi-linkage combined esterification tower comprises an upper section tower body 1, a middle section tower body 2, a lower section tower body 3 and a skirt 4 as a bottom support, which are sequentially communicated;
as shown in fig. 2, the top of the upper tower body is an exhaust port 11, a liquid inlet pipe 13 is arranged on the side of the upper tower body 1, the outlet of the liquid inlet pipe 13 is arranged on the axis of the upper tower body, two sets of liquid distributors 14 and structured packing units 15 are arranged below the outlet of the liquid inlet pipe 13 inside the upper tower body 1, packing support grids 16 are arranged at the lower end of the structured packing units 15, reaction liquid is injected from the liquid inlet pipe 13 and is dispersed under the action of the liquid distributors 14, the air flow at the structured packing units 15 and from the lower part is fully reflected, the passing air flow is discharged from the exhaust port 11 at the top, the inflowing liquid is prevented from being sputtered to the top to cause pollution under the blocking of the spherical baffle plate 12, a manhole 17 is arranged on the cylinder wall of the upper tower body 1, and the observation is convenient.
As shown in fig. 3, 5 and 6, a plurality of coaxially arranged conical reaction trays 21 with flared tops and closed bottoms are uniformly distributed in the middle-stage tower body 2 from top to bottom, in other embodiments, the conical reaction trays may also be spherical or elliptical, the closed bottoms of the reaction trays 21 are provided with down-flow holes 22, and the diameters of the reaction trays are sequentially increased from top to bottom; the side wall of the reaction disc 21 is provided with three jet holes 23 with jet angles tangent to the side wall of the reaction disc, the jet holes are uniformly arranged along the longitudinal direction and the circumferential direction, and the material liquid with different heights and orientations can be well contacted with the reaction gas, the jet holes 23 are externally connected with a jet pipeline 24, the liquid flowing into the middle tower body 2 through the upper tower body 1 enters the first layer reaction disc 21, the airflow jetted by the jet pipeline 24 rotates and spirally flows upwards along the side wall of the reaction disc 21, the flow direction of the airflow is opposite to that of the fluid under the action of gravity, the airflow meets the fluid, the fluid is driven by the airflow to circularly move in the reaction disc and finally flows out from the liquid dropping hole 22 at the lower end under the action of gravity, the flowing time of the fluid is greatly increased, the reaction is sufficient, then the fluid enters the next layer reaction disc 21 and sequentially circulates, the full contact of the fluid and the gas is realized, overflowing along the upper edge and entering the next layer of reaction disc.
As shown in fig. 4, a deflection channel 31 flowing from the center to the periphery is arranged in the lower-section tower body 3, the deflection channel is formed by sequentially sleeving a plurality of coaxial sleeves 32 with different diameters, baffles 33 are arranged at the bottom of the concentric sleeves 32 at intervals to form the deflection channel, and the tops of the concentric sleeves are all open. The top of the lower section of the tower body is provided with a liquid receiving disc 34 with an expanded top and a closed bottom corresponding to the middle tower body 2, the closed end of the liquid receiving disc 34 is provided with a down flow hole, the diameter of the innermost passage of the deflection passage is larger than that of the down flow hole of the liquid receiving disc and is used for receiving liquid of the middle tower body 2, the outermost top end of the deflection passage 31 is open and communicated with the middle tower body 2, the side wall of the lower section of the tower body 3 is provided with a liquid outlet 37, the bottom end of the lower section of the tower body 3 is provided with an aeration pipeline 34, the aeration pipeline 34 extends into the deflection passage, the tail end of the aeration pipeline 35 is uniformly provided with dispersion holes 35, and the dispersion holes 36 are separated by the baffle 33 and respectively correspond to different deflection flow passages.
The liquid entering the lower tower body 3 flows outwards from the center along the deflection channel 31, the whole stroke is greatly increased due to the existence of the deflection channel 31, the reaction time is greatly prolonged, the airflow sprayed by the aeration pipe 35 is fully dispersed in different deflection flow channels and fully reflected with the liquid, the unreflected gas is dispersed from the top end of the deflection channel 31, enters the middle tower body 2 and then enters the upper tower body 1 to be respectively contacted with the liquid in the two tower bodies again, and the full utilization of the liquid and the gas is realized.
This many combination formula esterification towers that moves combines the collocation with the tower section combination of multiform, different structures, when reflecting respectively, for other section tower bodies provide help, three interact, the intercombination realize gas-liquid mixture's maximize and high efficiency, have improved the time and the reaction area of reaction, and the structure is simple relatively, and stability is reliable.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (8)
1. A multi-linkage combined esterification tower is characterized in that: comprises an upper section tower body, a middle section tower body, a lower section tower body and a skirt which is used as a bottom support, wherein the upper section tower body, the middle section tower body and the lower section tower body are communicated in sequence;
the top of the upper-section tower body is provided with an exhaust port, the side part of the upper-section tower body is provided with a liquid inlet pipe, the outlet of the liquid inlet pipe is arranged on the axis of the upper-section tower body, the inner part of the upper-section tower body is arranged below the outlet of the liquid inlet pipe and is provided with at least one group of liquid distributors and a structured packing unit, and the lower end of the structured packing unit is provided with a packing support grid;
a plurality of coaxially arranged reaction discs with flared tops and closed bottoms are uniformly distributed in the middle-section tower body from top to bottom, a down-flow hole is formed in the closed bottom position of each reaction disc, a jet hole with a jet angle tangent to the side wall of each reaction disc is formed in the side wall of each reaction disc, and the jet hole is externally connected with a jet pipeline;
the lower section of the tower body is internally provided with a deflection channel which flows from the center to the periphery, the deflection plates of the deflection channel are longitudinally arranged, the innermost channel of the deflection channel is an inlet end and is used for receiving liquid of the middle section of the tower body, the outermost top end of the deflection channel is open and is communicated with the middle section of the tower body, a liquid outlet is formed in the side wall of the lower section of the tower body, the bottom end of the lower section of the tower body is provided with an aeration pipeline, and the aeration pipeline extends into the deflection channel.
2. A multi-split combined esterification tower as claimed in claim 1, wherein: the top of the lower section of the tower body corresponds to the middle tower body and is provided with a liquid receiving disc with an expanded top and a closed bottom, the closed end of the liquid receiving disc is provided with a down-flow hole, and the diameter of the innermost layer of the baffling channel is larger than that of the down-flow hole of the liquid receiving disc.
3. A multi-split combined esterification tower as claimed in claim 1 or 2, wherein: the diameters of the reaction discs are sequentially increased from top to bottom.
4. A multi-split combined esterification tower as claimed in claim 3, wherein: the side wall of the reaction disc is provided with at least 1 jet hole, and the jet holes are uniformly arranged along the longitudinal direction and the circumferential direction.
5. A multi-linkage combined esterification tower as claimed in claim 4, wherein: the baffling passageway in the lower segment tower body is established by the sleeve of a plurality of coaxial different footpaths in proper order and is constituted, and concentric telescopic bottom interval sets up the baffle in order to form baffling passageway, and concentric telescopic top is all uncovered.
6. A multi-linkage combined esterification tower as claimed in claim 5, wherein: the tail end of the aeration pipe is uniformly provided with dispersion holes, and the baffle plates divide the dispersion holes and respectively correspond to different baffling flow channels.
7. A multi-split combined esterification tower as claimed in claim 5 or 6, wherein: and a spherical baffle for preventing sputtering is arranged at the top of the upper tower body.
8. A multi-split combined esterification tower as claimed in claim 7, wherein: the reaction disc is conical or spherical crown-shaped or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922104048.8U CN211595586U (en) | 2019-11-29 | 2019-11-29 | Multi-linkage combined esterification tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922104048.8U CN211595586U (en) | 2019-11-29 | 2019-11-29 | Multi-linkage combined esterification tower |
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| CN211595586U true CN211595586U (en) | 2020-09-29 |
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| CN201922104048.8U Active CN211595586U (en) | 2019-11-29 | 2019-11-29 | Multi-linkage combined esterification tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115945800A (en) * | 2022-12-15 | 2023-04-11 | 东莞市科诗特技术有限公司 | Laser processing head with balanced water pressure |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115945800A (en) * | 2022-12-15 | 2023-04-11 | 东莞市科诗特技术有限公司 | Laser processing head with balanced water pressure |
| CN115945800B (en) * | 2022-12-15 | 2024-05-28 | 东莞市科诗特技术有限公司 | Laser processing head with balanced water pressure |
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