CN219185855U - Distillation tower of high-efficient slagging-off - Google Patents

Abstract

The utility model discloses a distillation tower capable of efficiently removing slag, which comprises a tower body, wherein an air outlet pipe is arranged at the top of the tower body, a packing layer is arranged at the upper part of the tower body, a steam heat exchanger is arranged at the lower part of the tower body, a liquid discharge pipe is arranged at the bottom of the tower body, a feeding pipe is arranged in the middle of the tower body, filler of the packing layer is a corrugated filler plate, and the packing layer is paved on a grid corresponding to the upper part of the tower body. The utility model has the following advantages and effects: the new mechanical structure of this scheme utilization has that the slagging-off is effectual, improves tower body gas-liquid mass transfer efficiency, the packing layer is easy to be filled and take out, gas-liquid distributes evenly, reduces the effect of producing the gaseous foam.

Description

Distillation tower of high-efficient slagging-off

Technical Field

The utility model relates to the technical field of distillation towers, in particular to a distillation tower capable of efficiently removing slag.

Background

The distillation tower is a tower type gas-liquid contact device for rectifying, and the components in the mixture have different volatilities, and the evaporated gas phase and the descending liquid are in countercurrent contact, so that the volatile (low boiling point) components in the descending liquid are continuously transferred to the gas phase in the two-phase contact, the less volatile (high boiling point) components in the gas phase are continuously transferred to the descending liquid, the more the gas phase is close to the top of the tower, the higher the concentration of the volatile components is, the more the less volatile components are close to the bottom of the tower, and the more the volatile components are enriched, thereby achieving the purpose of separating the components.

To the distillation column of purification ethanol, because the gas after the separation of distillation column needs to pass through the membrane separation technique and realize the purification to ethanol, need use filtration membrane in the membrane separation technique, but traditional distillation column lacks filter equipment, leads to containing more impurity in the gas that gets out from the top of distillation column, if directly let into filtration membrane with the gas that contains impurity, great impurity can cause the jam of filtration membrane even damage the state on membrane surface, leads to needing to change filtration membrane often, this will probably cause the increase of cost.

Disclosure of Invention

The utility model aims to provide a distillation tower capable of efficiently removing slag, which has the effects of good slag removal effect and improvement of gas-liquid mass transfer efficiency of a tower body.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a distillation column of high-efficient slagging-off, includes the tower body, the tower body top is equipped with the outlet duct, the upper portion of tower body is equipped with the packing layer, the lower part of tower body is equipped with steam heat exchanger, the bottom of tower body is equipped with the fluid-discharge tube, the tower body middle part is equipped with the inlet pipe, the filler of packing layer is established to ripple filler plate, the packing layer shop in on the rack that upper portion of tower body corresponds.

Through adopting above-mentioned technical scheme, when the raw materials of liquid phase enters into the tower body from the middle part through the inlet pipe, because the tower body lower part is equipped with steam heat exchanger, the heat of steam in the steam heat exchanger is absorbed to the raw materials of liquid phase, make the light component of high volatility absorb heat gasification in the raw materials, and the heavy component of low volatility deposit to the bottom of tower body in the raw materials, the light component after the gasification upwards rises through the heat flow, through the packing layer that contains the ripple filler board, the ripple filler board makes the liquid phase component that flows back from reflux unit fully contact with the gaseous component that the tower body risen this moment, thereby improve mass transfer efficiency, impurity in this in-process ripple filler board filters the raw materials, get rid of impurity in the gaseous phase component that rises, reduce impurity in the gaseous phase component that is discharged from the outlet duct, thereby protect the filtration membrane in the follow-up membrane separation process, improve filtration membrane's life, have the effect of slagging-off good, improve the effect of tower body gas-liquid mass transfer efficiency.

The utility model is further provided with: the packing layer comprises a plurality of packing supports which are densely distributed, and each packing support is internally filled with the corrugated packing plate.

Through adopting above-mentioned technical scheme, can be through laying a plurality of packing support that are filled with ripple filler board on the rack, realize filling to the packing layer, be different from traditional holistic ripple filler board's packing, this kind of filling mode is more convenient, and fills and dismantle in-process ripple filler board be difficult for taking place to warp or damage.

The utility model is further provided with: the vertical direction of the corrugated packing plates is continuous wave, the horizontal direction of the corrugated packing plates is linear, and a plurality of corrugated packing plates are distributed on the packing support at intervals.

Through adopting above-mentioned technical scheme, liquid from the ripple packing board follow from last to the whereabouts, gas rises through the clearance between the adjacent ripple packing board, and the vertical direction is established to wavy ripple packing board, can improve gas-liquid area of contact to improve gas-liquid mass transfer efficiency.

The utility model is further provided with: the filler support comprises a first support and a second support, and a plurality of filler layers which are matched with the shape of the net rack are formed by tiling the first support and the second support on the net rack.

The utility model is further provided with: the corrugated filler plate is provided with a plurality of vent holes.

Through adopting above-mentioned technical scheme, the air vent can be regarded as the passageway that gas risees, and when the gas velocity of flow that rises in the tower body was too high, unnecessary rising gas flow can upwards promote through the air vent, can effectively reduce the gas resistance of the internal rising gas flow of tower, prevents that the packing layer from being washed out.

The utility model is further provided with: the upper end of the packing support is provided with a plurality of inserting columns, the lower end of the packing support is provided with a plurality of inserting grooves, and when a plurality of packing supports are overlapped up and down, the inserting columns of the packing support at the lower part are in inserting fit with the inserting grooves of the packing support at the upper part.

Through adopting above-mentioned technical scheme, after having laid the first layer packing layer on the rack, can carry out more layers of packing layer and lay above that, peg graft the cooperation through spliced pole and slot between the adjacent upper and lower two-layer between the packing support and realize fixedly, can prevent effectively that upper and lower two-layer packing support from taking place relative skew, lead to the runner jam of gas-liquid mass transfer, influence the efficiency of gas-liquid mass transfer.

The utility model is further provided with: and a manhole is formed on the side wall of the tower body corresponding to the packing layer, and the sealing flange is plugged into the manhole through bolts.

Through adopting above-mentioned technical scheme, the outside at the tower body that the packing layer corresponds is seted up to the manhole, when packing layer is filled or dismantle to needs, can open sealing flange, then through the manual work entering manhole in realize laying or dismantling the packing layer, greatly improved the convenience of packing layer loading and unloading.

The utility model is further provided with: the lower part of the tower body is also provided with an electric heating heat tracing device.

By adopting the technical scheme, the steam heat exchanger performs heat exchange by adopting high-heat and high-pressure steam, but the places where the steam is generally supplied in the factory in actual production are more, meanwhile, the situation that the steam is not supplied can be possibly caused by accidents, the electric heating heat tracing device can effectively prevent the situation that the tower flooding occurs due to insufficient steam supply caused by accidents, and when the steam is not supplied due to the accidents, the electric heating heat tracing device can be started to heat the tower bottom.

The utility model is further provided with: and a gas distributor is further arranged between the packing layer and the gas outlet pipe, and a liquid phase distributor is arranged between the feeding pipe and the steam heat exchanger.

Through adopting above-mentioned technical scheme, gas distributor can make the gas distribution that rises in the tower more even, and liquid phase distributor can make the liquid phase distribution that falls into the tower bottom more even.

The utility model is further provided with: and a foam remover is arranged above the packing layer.

By adopting the technical scheme, the foam remover can effectively remove the foam in the gas at the top of the tower, and greatly reduce the foam amount in the gas exhausted by the gas outlet pipe.

In summary, the utility model has the following beneficial effects: the upper part in the tower body of the distillation tower is provided with the packing layer containing the corrugated packing, raw materials entering from the feeding pipe are filtered, impurities contained in the raw materials are removed, and the tower has the effects of good deslagging effect, improvement of the gas-liquid mass transfer efficiency of the tower body, easiness in filling and taking out of the packing layer, uniform gas-liquid distribution and reduction of produced gas floating foam.

Drawings

Fig. 1 is an overall structural view of a first embodiment of the present utility model.

Fig. 2 is an overall structural diagram of a second embodiment of the present utility model.

Fig. 3 is a top view of a second embodiment of the present utility model in which a first bracket and a second bracket are laid in a corresponding shape of a net rack.

Fig. 4 is a separation view of the upper first bracket and the lower first bracket according to the second embodiment of the present utility model.

Fig. 5 is a separation view of the upper second bracket and the lower second bracket according to the second embodiment of the present utility model.

Fig. 6 is a block diagram of a second corrugated packing plate in accordance with an embodiment of the present utility model.

In the figure: 1. a tower body; 11. an air outlet pipe; 12. a liquid discharge pipe; 13. a steam heat exchanger; 131. a steam introduction pipe; 132. a steam discharge pipe; 14. a feed pipe; 15. a net rack; 16. a manhole; 17. a sealing flange; 2. a filler layer; 21. a filler holder; 21a, a first bracket; 21b, a second bracket; 212. inserting a column; 213. a slot; 22. corrugated filler plates; 221. a vent hole; 3. an electric heating heat tracing device; 4. a gas distributor; 5. a liquid phase distributor; 6. a foam remover.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Detailed description of the preferred embodiments

A distillation column with efficient slag removal is shown in fig. 1, and comprises a column body 1, wherein an air outlet pipe 11 and a reflux device (not shown) are arranged at the top of the column body 1, the reflux device is of the prior art, a filler layer 2 is arranged at the upper part of the column body 1, a filler material of the filler layer 2 is arranged into a corrugated filler plate 22, the filler layer 2 is paved on a net rack 15 corresponding to the upper part of the column body 1, a steam heat exchanger 13 is arranged at the lower part of the column body 1, the steam heat exchanger 13 comprises a steam introducing pipe 131 and a steam discharging pipe 132 which are arranged on the side wall of the column body 1, the position of the steam introducing pipe 131 is relatively arranged above the opposite side of the steam discharging pipe 132, a liquid discharging pipe 12 is arranged at the bottom of the column body 1, and a feeding pipe 14 is arranged in the middle of the column body 1.

The basic working principle of the utility model is as follows: when the liquid phase raw material enters the tower body 1 from the middle part through the feeding pipe 14, as the steam heat exchanger 13 is arranged at the lower part of the tower body 1, the liquid phase raw material absorbs the heat of the steam in the steam heat exchanger 13, so that the high-volatility light component in the raw material absorbs heat and gasifies, the low-volatility heavy component in the raw material is deposited at the bottom of the tower body 1, the gasified light component rises upwards through the heat flow and passes through the packing layer 2 containing the corrugated packing plate 22, and the corrugated packing plate 22 enables the liquid phase component flowing back from the reflux device to fully contact with the gas component rising from the tower body 1, thereby improving the mass transfer efficiency, filtering impurities in the raw material by the corrugated packing plate 22 in the process, removing impurities in the rising gas phase component, reducing impurities in the gas phase component discharged from the gas outlet pipe 11, protecting the filtering membrane in the subsequent membrane separation process, prolonging the service life of the filtering membrane, and having the effects of good deslagging effect and improving the gas-liquid efficiency of the tower body 1.

Second embodiment

In this embodiment, as shown in fig. 3-5, the packing layer 2 includes a plurality of packing supports 21 densely distributed, each packing support 21 is filled with corrugated packing plates 22, the vertical direction of each packing support 22 is continuously wavy, the horizontal direction of each corrugated packing plate 22 is straight, the plurality of corrugated packing plates 22 are distributed on the packing support 21 at intervals, the liquid slides down from the corrugated packing plates 22, the gas rises through the gaps between the adjacent corrugated packing plates 22, the vertical direction is set to be wavy corrugated packing plates 22, the gas-liquid contact area can be increased, thereby improving the gas-liquid mass transfer efficiency, each packing support 21 includes twelve first supports 21a and six second supports 21b, each first support 21a and each second support 21b are tiled on the grid 15 to form the packing layer 2 in the shape of the grid 15, the packing supports 21 filled with the corrugated packing plates 22 are paved on the grid 15 during paving, the packing layer 2 is filled differently from the conventional corrugated packing plates 22 which are easy to be filled, and the packing process is more convenient to detach or the packing plates 22 are not damaged.

As shown in fig. 6, the corrugated packing plate 22 is provided with a plurality of ventilation holes 221, the ventilation holes 221 can be used as a gas rising channel, when the rising gas flow rate in the tower body 1 is too high, the redundant rising gas flow can be lifted upwards through the ventilation holes 221, so that the gas resistance of the rising gas flow in the tower body 1 can be effectively reduced, and the packing layer 2 is prevented from being broken.

As shown in fig. 4-5, the first bracket 21a is a regular quadrangular, four inserting columns 212 are arranged at the upper end of the first bracket 21a, four inserting slots 213 are arranged at the lower end of the first bracket 21a, and when the upper and lower packing brackets 21 are overlapped, the inserting columns 212 of the lower packing bracket 21 are in inserting fit with the inserting slots 213 of the upper packing bracket 21; the upper end of the second support 21b is provided with two inserting columns 212, the lower end of the second support 21b is provided with two inserting grooves 213, and when the upper packing support 21 and the lower packing support 21 are overlapped, the inserting columns 212 of the lower packing support 21 are matched with the inserting grooves 213 of the upper packing support 21 in a plugging manner to realize positioning, after the first packing layer 2 is paved on the net rack 15, more packing layers 2 can be paved on the net rack, and the adjacent upper packing support 21 and the adjacent lower packing support 21 are matched with each other in a plugging manner through the inserting columns 212 and the inserting grooves 213 to realize fixation, so that the relative deviation of the upper packing support 21 and the lower packing support 21 can be effectively prevented, the flow passage of gas-liquid mass transfer is blocked, and the gas-liquid mass transfer efficiency is influenced.

As shown in fig. 2, the side wall of the tower body 1 is provided with a manhole 16 corresponding to the packing layer 2, and the sealing flange 17 is plugged in the manhole 16 through bolts, the manhole 16 is provided with the outer side of the tower body 1 corresponding to the packing layer 2, when the packing layer 2 needs to be filled or disassembled, the sealing flange 17 can be opened, then the packing layer 2 can be paved or disassembled by manually entering the manhole 16, and the convenience in loading and unloading the packing layer 2 is greatly improved.

The lower part of the tower body 1 is also provided with an electric heating heat tracing device 3, the steam heat exchanger 13 adopts high-heat and high-pressure steam to exchange heat, but the general supply places of the factory steam in actual production are more, meanwhile, the situation that the steam supply is not up can be caused by accidents, the electric heating heat tracing device 3 can effectively prevent the situation that the tower flooding occurs due to insufficient steam supply caused by accidents, and when the steam supply is not up due to the accidents, the electric heating heat tracing device 3 can be started to heat the tower bottom.

The gas distributor 4 is also arranged between the packing layer 2 and the gas outlet pipe 11, the liquid phase distributor 5 is arranged between the feed pipe 14 and the steam heat exchanger 13, the gas distributor 4 can enable the ascending gas distribution in the tower body 1 to be more uniform, and the liquid phase distributor 5 can enable the liquid phase distribution falling into the tower bottom to be more uniform.

The demister 6 is arranged above the packing layer 2, and the demister 6 can effectively remove floating foam in gas at the top of the tower, so that the floating foam amount in the gas discharged by the gas outlet pipe 11 is greatly reduced.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims (10)

1. The utility model provides a distillation column of high-efficient slagging-off, is including tower body (1), tower body (1) top is equipped with outlet duct (11) and reflux unit, the upper portion of tower body (1) is equipped with packing layer (2), the lower part of tower body (1) is equipped with steam heat exchanger (13), the bottom of tower body (1) is equipped with fluid-discharge tube (12), its characterized in that: the middle part of the tower body (1) is provided with a feeding pipe (14), a filler of the filler layer (2) is provided with a corrugated filler plate (22), and the filler layer (2) is laid on a grid (15) corresponding to the upper part of the tower body (1).

2. A high efficiency slag removal distillation column as set forth in claim 1 wherein: the packing layer (2) comprises a plurality of packing supports (21) which are densely distributed, and each packing support (21) is internally filled with the corrugated packing plate (22).

3. A high efficiency slag removal distillation column as set forth in claim 2 wherein: the corrugated packing plates (22) are continuously wavy in the vertical direction, the corrugated packing plates (22) are linear in the horizontal direction, and a plurality of corrugated packing plates (22) are distributed on the packing support (21) at intervals.

4. A high efficiency slag removal distillation column as set forth in claim 2 wherein: the filler support (21) comprises a first support (21 a) and a second support (21 b), and a plurality of filler layers (2) which are matched with the shape of the net rack (15) are formed by tiling the first support (21 a) and the second support (21 b) on the net rack (15).

5. A high efficiency slag removal distillation column as set forth in claim 1 wherein: the corrugated filler plate (22) is provided with a plurality of vent holes (221).

6. A high efficiency slag removal distillation column as set forth in claim 2 wherein: the upper end of the packing support (21) is provided with a plurality of inserting columns (212), the lower end of the packing support (21) is provided with a plurality of inserting grooves (213), and when a plurality of packing supports (21) are overlapped up and down, the inserting columns (212) of the packing support (21) at the lower part are in inserting fit with the inserting grooves (213) of the packing support (21) at the upper part.

7. A high efficiency slag removal distillation column as set forth in claim 1 wherein: manhole (16) are formed in the side wall of the tower body (1) corresponding to the packing layer (2), and sealing flanges (17) are plugged into the manhole (16) through bolts.

8. A high efficiency slag removal distillation column as set forth in claim 1 wherein: the lower part of the tower body (1) is also provided with an electric heating heat tracing device (3).

9. A high efficiency slag removal distillation column as set forth in claim 1 wherein: a gas distributor (4) is further arranged between the packing layer (2) and the gas outlet pipe (11), and a liquid phase distributor (5) is arranged between the feeding pipe (14) and the steam heat exchanger (13).

10. A high efficiency slag removal distillation column as set forth in claim 1 wherein: a foam remover (6) is arranged above the packing layer (2).

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