CN205549649U - High -efficient rectifying column of middle octanol - Google Patents
High -efficient rectifying column of middle octanol Download PDFInfo
- Publication number
- CN205549649U CN205549649U CN201620179729.4U CN201620179729U CN205549649U CN 205549649 U CN205549649 U CN 205549649U CN 201620179729 U CN201620179729 U CN 201620179729U CN 205549649 U CN205549649 U CN 205549649U
- Authority
- CN
- China
- Prior art keywords
- distributor
- sec
- packing layer
- layer
- octyl alcohol
- 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.)
- Active
Links
Abstract
The utility model relates to a chemical industry equipment, the high -efficient filler storehouse of a middle octanol rectifying column promptly, including distributor (3) and packing layer (4), its characteristics are: distributor (3) are flat -plate -shapedly, hang the top in packing layer (4) through mild rope (8). The beneficial effects are that: distributor that gentle cable was hung still can auto seeking plane when the tower body sways, can be even distribution to the packing layer of liquid material, adopt the packing layer of multiple difference in addition, and dispersibility is comprehensive, can obtain thick middle octanol straight fractional distillation content and reach the refined middle octanol 99.5% or more, and simple structure, low cost, production efficiency is high, and product quality is stable, has solved the difficult problem that middle octanol was purifyd.
Description
Technical field
This utility model relates to a kind of chemical industry equipment, i.e. a kind of sec-octyl alcohol high-efficient spiral-screen column.
Background technology
Sec-octyl alcohol is a kind of important chemical products, be mainly used in plastic plasticizer, synthetic perfume, mineral flotation agent,
The production fields such as defoamer, synthetic fiber oiling agent, farm chemical emulgent, and alternative oil product capryl alcohol and industry capryl alcohol,
Of many uses, domestic annual requirement more than about 2,000,000 tons, present the situation that supply falls short of demand.Sec-octyl alcohol is mainly at castor
Oleum Sesami obtains during producing decanedioic acid., obtained sec-octyl alcohol is thick sec-octyl alcohol, and content is only at 83-85%
Between, and the existing domestic and international prescription to sec-octyl alcohol is content more than 99%, so that purification further.
At present, the method for refined sec-octyl alcohol mainly has chemical method and hydrogenation method.Chemical method operation is complicated, the three wastes are more, belongs to fall
The rear mode of production.Hydrogenation method is to make secondary octanone be reduced into sec-octyl alcohol by catalyst, but reaction is difficult to thoroughly, and also has
Other alcohol generates.Secondary octanone especially as raw material is close with both sec-octyl alcohol boiling point, structure and chemical property difference
Seldom, separating difficulty is big.It addition, this technique is harsher to the requirement of catalyst, multiple catalysts is in course of reaction
In easily inactivate, add the uncertain factor of production.The catalyst that catalytic effect is best, the content of the sec-octyl alcohol produced
Can only achieve 93%, in addition it is also necessary to carrying out rectification and just can isolate the sec-octyl alcohol of higher purity, technique is loaded down with trivial details, cost occupies height,
It is difficult in adapt to the requirement produced.
Summary of the invention
The purpose of this utility model is to provide one can carry out purification to thick sec-octyl alcohol, produces content and reaches more than 99%
Refined sec-octyl alcohol, and efficiency is high, low cost, stay-in-grade sec-octyl alcohol high-efficient spiral-screen column.
Above-mentioned purpose is realized by techniques below scheme: develop a kind of sec-octyl alcohol high-efficient spiral-screen column, including cylindrical tower body,
Tower body top is provided with charging aperture and floss hole, and bottom is provided with discharging opening and steam inlet, is characterized in: set in described tower body
Having seven layers of packing layer, be equipped with distributor above each packing layer, distributor is arranged above with catcher, upper two-layer packing layer
For silk screen corrugated filler layer, below five layers be corrugated plate packing layer.
The thin plate that described silk screen corrugated filler layer is woven by metal gauze forms, and multi-disc thin plate is erect and placed, and forms height
For more than or equal to 200mm, diameter is less than the cylinder of tower body internal diameter 3 millimeters, and sheet panel top face is provided with ripple, corrugated surface
Direction and tower axial rake are 45 °, and the corrugated surface incline direction of adjacent two panels thin plate is contrary, neighbouring two-layer packing layer
Thin plate direction is mutually perpendicular to.
Described corrugated plating is made up of sheet metal, and multi-disc thin plate is erect and placed, and forming height is more than or equal to 200mm,
Diameter is less than the cylinder of tower body internal diameter 3 millimeters, and sheet panel top face is provided with ripple, and corrugated cardboard sheet is provided with many
Aperture, the thin plate direction of neighbouring two-layer packing layer is mutually perpendicular to.
Described catcher top is provided with the reception plate that multiple strip bottom surface is tip-angled shape, adjacent reception plate cross-lapping, connects
Receiving plate and cannelure is arranged below, the two ends of each reception plate all suitable for reading relative with cannelure, the interior lower section of cannelure is provided with
Vomit pipe, the end opening of vomit pipe is relative with distributor.
Described distributor has two-stage, and wherein, primary distributor is made up of, on porous pit a porous pit and a socket groove
Mouth is rectangle, and goes to the bottom and is provided with multiple small opening, and porous pit is contained in socket groove internal upper part, and the bottom land of socket groove is provided with a plurality of square
Shape socket, socket is rectangular to intubate equipped with plane section, the top intubated on bottom land, bottom below bottom land,
Tube wall is equipped with through hole up and down, and the main body of two grades of distributors is suitable for reading and intubates the homocline pipe plugged, the lower end of homocline pipe
Sealing in tip-angled shape, the length of homocline pipe plane section more than the length that intubates, two ends, left and right within packing layer edge, two
Side has multiple through hole, and through hole outer lower side is provided with the shunting pawl downwardly extended.
Described distributor is in the form of slot, and bottom land is flat board, flat board has many exhausting holes, is provided with and intersects in length and breadth between through hole
Groove.In the outside of flat board, at least provided with two-layer bracing ring, i.e. inner support circle and outer support circle, flat board and inner support circle
Between be rotationally connected by a pair concentric semiaxis, between inner support circle with outer support circle by the concentric semiaxis of another pair rotate
Connecting, the axis of two pairs of semiaxis is mutually perpendicular to.
Described outer support circle has multilamellar, is rotationally connected by concentric semiaxis between adjacent two layers, phase between adjacent two layers semiaxis
The most vertical.
Described filler floor height 4800-5100mm.
Described tower body height is more than 45000-50000mm.
The beneficial effects of the utility model are: directly thick sec-octyl alcohol is carried out fractional distillation, obtain content and reach the essence of more than 99.5%
Sec-octyl alcohol processed, and simple in construction, with low cost, production efficiency is high, constant product quality, it is possible to adapt to the demand in market.
Accompanying drawing explanation
Fig. 1 is the front view of the first embodiment；
Fig. 2 is the enlarged front view of the parts screen waviness packings of the first embodiment；
Fig. 3 is the enlarged front view of the member clamp plate filler of the first embodiment；
Fig. 4 is parts catcher and the assembling enlarged front view of distributor of the first embodiment；
Fig. 5 is the front view of the parts collecting board of the first embodiment；
Fig. 6 is the top view of the parts collecting board of the first embodiment；
Fig. 7 is the front view of the parts another kind collecting board of the first embodiment；
Fig. 8 is the top view of the parts another kind collecting board of the first embodiment；
Fig. 9 is the front view of the parts cannelure of the first embodiment；
Figure 10 is the top view of the parts cannelure of the first embodiment；
Figure 11 is the front view of the parts porous pit of the first embodiment；
Figure 12 is the top view of the parts porous pit of the first embodiment；
Figure 13 is the front view of the parts socket groove of the first embodiment；
Figure 14 is the left view of the parts socket groove of the first embodiment；
Figure 15 is the top view of the parts socket groove of the first embodiment；
Figure 16 is the front view of the parts homocline pipe of the first embodiment；
Figure 17 is the left view of the parts homocline pipe of the first embodiment；
Figure 18 is the top view of the parts homocline pipe of the first embodiment；
Figure 19 is the assembling front view of the component distribution device of the first embodiment；
Figure 20 is the assembling plan view of the component distribution device of the first embodiment；
Figure 21 is the front view of the component distribution device of the second embodiment；
Figure 22 is the top view of the component distribution device of the second embodiment；
Figure 23 is the top view of the component distribution device of the third embodiment.
In figure visible: tower body 1, drain hole 2, steam port 3, packing layer 4, distributor 5, catcher 6, charging aperture
7, floss hole 8, screen waviness packings 9, corrugated plate packing 10, reception plate 11, cannelure 12, primary distributor 13,
Two grades of distributors 14, vomit pipe 15, corrugated surface 16, small opening 17, socket groove 18, intubate 19, homocline pipe 20, point
Stream pawl 21, flat board 22, through hole 23, groove 24, semiaxis 25, inner support circle 26, outer support circle 27.
Detailed description of the invention
The total design of this utility model is: is provided with seven packing layers 4 in rectifying column, is equipped with above each packing layer 4
Distributor 5, distributor 5 is arranged above with catcher 6, and upper two-layer packing layer 4 is silk screen corrugated filler layer 9, below five
Layer is corrugated plate packing layer 10, it is possible to the refined sec-octyl alcohol that the purification of thick sec-octyl alcohol is more than 99.5%.Below in conjunction with the accompanying drawings
Introduce three kinds of embodiments.
The first embodiment: Fig. 1 introduces a kind of sec-octyl alcohol high-efficient spiral-screen column, including cylindrical rustless steel tower body 1, tower
Body 1 top is provided with charging aperture 7 and floss hole 8, and bottom is provided with discharging opening and steam port 3, is characterized in: described tower body
Being provided with seven packing layers 4 in 1, be designed with distributor 5 above each packing layer 4, distributor 5 is arranged above with catcher 6,
Upper two packing layers 4 are adopted as screen waviness packings 9 layers, and following five packing layer is corrugated plate packing 10 layers.
Being made up of the thin plate of metal wire knitted used herein of screen waviness packings 9 layers, multi-disc thin plate is erect and is placed, shape
Becoming height is that diameter is less than the cylinder of tower body 1 internal diameter 3 millimeters, and sheet panel top face is provided with ripple more than or equal to 200mm,
Corrugated surface 16 direction is 45 ° with the inclination angle of tower axle, and corrugated surface 16 incline direction of adjacent two panels thin plate is contrary.Each fill out
The height of the bed of material 4 is 5000mm, can be formed by stacking with 25 thin plate layers, during superposition between neighbouring two-layer mutually
Stagger preferably.The thin plate direction of upper and lower two packing layers 4 is mutually perpendicular to.
Being made up of sheet metal used herein of corrugated plating, multi-disc thin plate is erect and is placed, and forms height for being more than or equal to
200mm, diameter is less than the cylinder of tower body 1 internal diameter 3 millimeters, and sheet panel top face is provided with ripple, and corrugated cardboard sheet is provided with
The aperture of many diameter 5mm, the height of each packing layer 4 is 5000mm, can be formed by stacking with 25 thin plate layers,
Mutually stagger preferably between neighbouring two-layer during superposition.The thin plate direction of upper and lower two packing layers 4 is mutually perpendicular to.
The above of each packing layer 4 has catcher 6 and distributor 5.The version of catcher 6 and distributor 5 is very
Many, catcher 6 top that this example uses is provided with the reception plate 11 that multiple strip bottom surface is tip-angled shape, adjacent reception plate
11 cross-lappings, cover whole cross section.Receive plate 11 and cannelure 12, the two ends of each reception plate 11 are arranged below
All suitable for reading relative with cannelure 12, the interior lower section of cannelure 12 is provided with vomit pipe 15, the end opening of vomit pipe 15 with under
The distributor 5 in face is relative.
The distributor 5 that this example uses has two-stage, and primary distributor 13 therein is by a porous pit and a socket groove 18
Composition, porous pit is suitable for reading to be rectangle, and goes to the bottom and is provided with multiple small opening 17.Porous pit is contained in socket groove 18 internal upper part, inserts
The bottom land of mouthful groove 18 is provided with a plurality of rectangular receptacle, socket is rectangular to intubate 19 equipped with plane section, intubates 19
Top is on bottom land, and bottom, below bottom land, intubates 19 walls and is equipped with through hole up and down.The main body of two grades of distributors 14
Be suitable for reading with intubate the 19 homocline pipes 20 plugged, the lower end closure of homocline pipe 20 is tip-angled shape, and homocline pipe 20 is truncate
The length and width in face is all higher than intubating the length and width of 19, and its length is advisable close to the edge of packing layer 4 with two ends,
Both sides have multiple through hole, and through hole outer lower side is provided with the shunting pawl 21 downwardly extended.
The height of catcher 6 and distributor 5 is 1200-1700mm, adds the height of packing layer 4 and base, tower body 1
Highly more than 45000-50000mm, preferably 46600mm.Packing layer 4 catcher 6 and 1 two-stage above is used in tower
Distributor, it is possible to liquid material is disperseed the most repeatedly, falls above filler uniformly.Each packing layer 4 institute
The two kinds of different fillers used, respectively have different separating properties, and material can be repeated by screen waviness packings 9
Longitudinal distribution, is that film forming is the most uniform.And the tiny rill on the ripple of corrugated plating and plate, can be on rough segmentation plate
Liquid, strengthen empir-ical formulation.By two kinds of fillers, make the continuous thinning film forming of liquid material, and repeatedly convert film forming
Shape and order, under the vacuum condition of tower internal upper part, steam passes crosswise with material from bottom to top, takes away lighter
The fractions such as secondary octanone, the sec-octyl alcohol stayed is cooled to lower end in tower and releases.It is demonstrated experimentally that use in same rectifying column
Two kinds of different fillers, can dramatically increase the fractionation performance of rectifying column, it is possible to thick sec-octyl alcohol is refined and reaches 99.5% for content
Above high-purity sec-octyl alcohol, has reached international standard.
Certainly, this rectifying column also needs to the auxiliary equipment with the use of aspects such as temperature, pressure, vacuum, flows,
But all can be realized by prior art, therefore not repeat.
The second embodiment: this example is by the basis of the first embodiment improving.Owing to the height of rectifying column reaches
More than 45 meters, being limited by building cost, the intensity of tower body is the highest in addition, and under the influence of natural wind, tower body has
Waving by a small margin, the rocking tendency on the top of tower body can be some larger.It is arranged on the distributor on top, also can be with tower body
Wave and tilt, although the angle tilted is the least, but the uniformity of liquid material also can be affected, and reduces material
Film-formation result and fractionating effect.In order to solve this problem, the recommendation of this example is a kind of can be with the distributor of Automatic Levelling.Such as figure
Shown in 21, this distributor 5 is flat board 22, the most in the form of slot, and flat board 22 has many exhausting holes 23, through hole 23
Between be provided with the groove 24 intersected in length and breadth.When liquid material is fallen on flat board 22, can be along the groove 24 intersected in length and breadth
Flow through whole flat board, flow out groove the most again, enter each through hole 23, then drop down onto packing layer 4 by through hole 23
Above, stream becomes thin film still further below.In the outside of flat board 22, at least provided with two bracing rings, i.e. inner support circle 26 is with outer
Bracing ring 27, is rotationally connected by a pair concentric semiaxis between flat board 22 with inner support circle 26, and inner support circle 26 is with outer
Being rotationally connected concentric semiaxis by another between bracing ring 27, the axis of two pairs of semiaxis is mutually perpendicular to.Here outer
Support ring is fixed on tower body 1, it is also possible to be tower body itself.So, flat board 22 just can rotating around two shaft swings,
Can Automatic Levelling in the two directions.When tower body waves, flat board 22 also will not reduce the uniform of liquid material
Property, film-formation result and fractionating effect can be greatly improved.
The third embodiment: this example is improved on the basis of the second embodiment further, the outside outside of bracing ring 27
Adding again two-layer bracing ring, outermost layer bracing ring is fixed on tower body, it is also possible to be tower body itself.Adjacent supports circle it
Between be all rotationally connected by a pair concentric semiaxis, be mutually perpendicular between neighboring concentric semiaxis.Compared with the second embodiment,
The flat board of this structure is possible not only to around the longitudinal axis or transverse axis rotation, moreover it is possible to around two inclined shaft rotations, and Automatic Levelling performance is more preferable,
Material distribution is more uniform, and fractionating effect is more preferable.
Claims (9)
1. a sec-octyl alcohol high-efficient spiral-screen column, including cylindrical tower body (1), tower body (1) top is provided with charging aperture (7) and floss hole (8), bottom is provided with discharging opening and steam inlet, it is characterized in that: in described tower body (1), be provided with seven layers of packing layer (4), distributor (5) it is equipped with above each packing layer (4), distributor (5) is arranged above with catcher (6), upper two-layer packing layer (4) is screen waviness packings (9) layer, below five layers be corrugated plate packing (10) layer.
Sec-octyl alcohol high-efficient spiral-screen column the most according to claim 1, it is characterized in that: the thin plate that described screen waviness packings (10) layer is woven by metal gauze forms, multi-disc thin plate is erect and is placed, forming height is more than or equal to 200mm, diameter is less than the cylinder of tower body internal diameter 3 millimeters, sheet panel top face is provided with ripple, corrugated surface (16) direction and tower axial rake are 45 °, corrugated surface (16) incline direction of adjacent two panels thin plate is contrary, and the thin plate direction of neighbouring two-layer packing layer (4) is mutually perpendicular to.
Sec-octyl alcohol high-efficient spiral-screen column the most according to claim 1, it is characterized in that: described corrugated plating is made up of sheet metal, multi-disc thin plate is erect and is placed, forming height is more than or equal to 200mm, diameter is less than the cylinder of tower body (1) internal diameter 3 millimeters, sheet panel top face is provided with ripple, and corrugated cardboard sheet is provided with the aperture of many 5mm, and the thin plate direction of neighbouring two-layer packing layer is mutually perpendicular to.
Sec-octyl alcohol high-efficient spiral-screen column the most according to claim 1, it is characterized in that: described catcher (6) top is provided with the reception plate (11) that multiple strip bottom surface is tip-angled shape, adjacent reception plate (11) cross-lapping, receive plate (11) and cannelure (12) is arranged below, the two ends of each reception plate (11) all suitable for reading relative with cannelure (12), the interior lower section of cannelure (12) is provided with vomit pipe (15), and the end opening of vomit pipe (15) is relative with distributor (5).
nullSec-octyl alcohol high-efficient spiral-screen column the most according to claim 1，It is characterized in that: described distributor (5) has two-stage，Wherein，Primary distributor (13) is made up of a porous pit and a socket groove (18)，Porous pit is suitable for reading to be rectangle，Go to the bottom and be provided with multiple small opening (17)，Porous pit is contained in socket groove (18) internal upper part，The bottom land of socket groove (18) is provided with a plurality of rectangular receptacle，It is rectangular to intubate (19) equipped with plane section on socket，Intubate the top of (19) on bottom land，Bottom is below bottom land，Tube wall is equipped with through hole up and down，The main body of two grades of distributors (14) is suitable for reading and intubates the homocline pipe (20) that (19) plug，The lower end closure of homocline pipe (20) is tip-angled shape，The length of homocline pipe (20) plane section is more than the length intubating (19)，Two ends, left and right are within packing layer (4) edge，Both sides have multiple through hole，Through hole outer lower side is provided with the shunting pawl (21) downwardly extended.
Sec-octyl alcohol high-efficient spiral-screen column the most according to claim 1, it is characterized in that: described distributor (5) is in the form of slot, bottom land is flat board (22), many exhausting holes (23) are had on flat board (22), the groove (24) intersected in length and breadth it is provided with between through hole (23), outside in flat board (22), at least provided with two-layer bracing ring, i.e. inner support circle (26) and outer support circle (27), it is rotationally connected by a pair concentric semiaxis (25) between flat board (22) with inner support circle (26), it is rotationally connected by the concentric semiaxis of another pair (25) between inner support circle (26) with outer support circle (27), the axis of two pairs of semiaxis (25) is mutually perpendicular to.
Sec-octyl alcohol high-efficient spiral-screen column the most according to claim 6, it is characterized in that: described outer support circle (27) has multilamellar, being rotationally connected by concentric semiaxis (25) between adjacent two layers, adjacent two layers semiaxis is mutually perpendicular between (25).
Sec-octyl alcohol high-efficient spiral-screen column the most according to claim 1, it is characterised in that: described packing layer (4) high 4800-5100mm.
Sec-octyl alcohol high-efficient spiral-screen column the most according to claim 1, it is characterised in that: described tower body (1) height is more than 45000-50000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179729.4U CN205549649U (en) | 2016-03-01 | 2016-03-01 | High -efficient rectifying column of middle octanol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179729.4U CN205549649U (en) | 2016-03-01 | 2016-03-01 | High -efficient rectifying column of middle octanol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205549649U true CN205549649U (en) | 2016-09-07 |
Family
ID=56817297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620179729.4U Active CN205549649U (en) | 2016-03-01 | 2016-03-01 | High -efficient rectifying column of middle octanol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205549649U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109438186A (en) * | 2018-11-16 | 2019-03-08 | 安阳市景晟科技有限公司 | A kind of high-purity sec-octyl alcohol industrialized preparing process |
| CN111530114A (en) * | 2020-06-16 | 2020-08-14 | 上海化工研究院有限公司 | Rectification system, semi-continuous rectification method and application thereof |
| CN111659149A (en) * | 2020-06-16 | 2020-09-15 | 上海化工研究院有限公司 | Rectifying tower, rectifying system and application thereof |
-
2016
- 2016-03-01 CN CN201620179729.4U patent/CN205549649U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109438186A (en) * | 2018-11-16 | 2019-03-08 | 安阳市景晟科技有限公司 | A kind of high-purity sec-octyl alcohol industrialized preparing process |
| CN109438186B (en) * | 2018-11-16 | 2021-08-17 | 安阳市景晟科技有限公司 | Industrial production method of high-purity sec-octanol |
| CN111530114A (en) * | 2020-06-16 | 2020-08-14 | 上海化工研究院有限公司 | Rectification system, semi-continuous rectification method and application thereof |
| CN111659149A (en) * | 2020-06-16 | 2020-09-15 | 上海化工研究院有限公司 | Rectifying tower, rectifying system and application thereof |
| CN111659149B (en) * | 2020-06-16 | 2021-10-08 | 上海化工研究院有限公司 | Rectifying tower, rectifying system and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205549649U (en) | High -efficient rectifying column of middle octanol | |
| CN101347716A (en) | Strong-effect regular packing without wall flow | |
| CN202700503U (en) | Pall ring | |
| CN104587946B (en) | A kind of regulation catalytic filling for reactive distillation column | |
| CN209254482U (en) | A kind of energy-saving desulfurization mentions effect device | |
| CN211536592U (en) | Rectifying tower | |
| CN101444677A (en) | TDA dehydrating tower | |
| CN201909552U (en) | Vacuum atmosphere condenser | |
| CN204865855U (en) | Pall ring packs | |
| CN102784489A (en) | Gas-liquid mass transfer structure of tower tray of floating valve tower | |
| CN208031945U (en) | A kind of catalytic distillation module applied to etherification reaction | |
| CN219558750U (en) | Novel packing multitube tower | |
| CN201719857U (en) | Line-type liquid distributor | |
| CN210205937U (en) | Rectifying tower for separating N, N-dimethyl propionamide-3-methyl ether | |
| CN111545159B (en) | High-efficient mass transfer separation bulk packing structure | |
| CN1057709C (en) | Composite filler tower | |
| CN201171919Y (en) | Novel percolation type composite column plate | |
| CN201379983Y (en) | TDA dehydrating tower | |
| CN1057708C (en) | Full effective region cross flow tower plate | |
| CN206483179U (en) | A kind of high-efficiency liquid distributor for being used to produce n-propyl acetate | |
| CN201744354U (en) | Rolled pore plate corrugated packing | |
| CN208583002U (en) | Catch box and tower | |
| CN213790035U (en) | Filler rectifying tower with concave-convex wall surface structure | |
| CN220276505U (en) | Vacuum buffering and defoaming integrated device | |
| CN210751975U (en) | Distributor for improving gas-liquid distribution effect of washing tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |