CN105999753B - Steam solidifying integral type purifying ethylene glycol tower - Google Patents
Steam solidifying integral type purifying ethylene glycol tower Download PDFInfo
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- CN105999753B CN105999753B CN201610496904.7A CN201610496904A CN105999753B CN 105999753 B CN105999753 B CN 105999753B CN 201610496904 A CN201610496904 A CN 201610496904A CN 105999753 B CN105999753 B CN 105999753B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Solidifying integral type purifying ethylene glycol tower is steamed the present invention relates to a kind of.It includes cylinder, skirt, condenser, cylinder is divided into upper, middle and lower segment, epimere cylinder upper end is equipped with condenser, epimere cylinder upper end connects condenser by transition conical shell, and the first liquid header, the first liquid distribution trough, the first filler and side take-off plate are designed with successively from top to bottom in epimere cylinder；Stage casing cylinder is sequentially arranged with second liquid distributor, the second filler from top to bottom；Hypomere cylinder is sequentially arranged with second liquid collector, third liquid distribution trough, third filler, end socket from top to bottom.The advantage of the invention is that：Ingenious in design, rational in infrastructure compact, structure simplifies, cost-effective, effectively collects ethylene glycol, improves working efficiency.
Description
Technical field
The present invention relates to refined ethylene glycol fields, and in particular to a kind of to steam solidifying integral type purifying ethylene glycol tower.
Background technology
Coal-ethylene glycol more successful process route in China's is at present：Coal gasification coupling method synthesizing dimethyl oxalate, oxalic acid
Dimethyl ester is hydrogenated to ethylene glycol.What is obtained in this way is thick ethylene glycol, also needs to purify as industrial chemicals.Purification essence
System uses different technique, but whatsoever purposes due to purposes difference again, and first of purification process is all using vacuum distillation
Method to carry out preliminary purification to ethylene glycol.It is exactly to be set for a kind of novel core of the process to steam solidifying integrated purifying ethylene glycol tower
It is standby.
Invention content
To solve the above-mentioned problems, the present invention proposes a kind of solidifying integral type purifying ethylene glycol tower of steaming, ingenious in design, structure
Rationally compact, structure simplifies, cost-effective, effectively collects ethylene glycol, improves working efficiency.
In order to reach foregoing invention purpose, the present invention proposes following technical scheme：
Solidifying integral type purifying ethylene glycol tower is steamed, it includes cylinder, skirt, condenser, and cylinder is divided into upper, middle and lower segment, on
Equipped with condenser, epimere cylinder upper end connects condenser by transition conical shell for section cylinder upper end, in epimere cylinder from top to bottom according to
Secondary design has the first liquid header, the first liquid distribution trough, the first filler and side take-off plate, and the first liquid header is located at
Condenser lower end, the first liquid header lower end connect the first liquid distribution trough by pipeline, and the first liquid distribution trough is mounted in the
Above one filler, side take-off plate is mounted on the first filler lower end, and side take-off plate surrounding is designed with annular groove, annular groove
Lower end leads to subsequent processing device on the outside of cylinder, the first liquid header lower end equipped with ethylene glycol extraction mouth and ethylene glycol extraction mouth
Cylinder position is provided with the first manhole on the outside of pipeline, and the second manhole is provided on the cylinder between the first filler and side take-off plate；In
Section cylinder is sequentially arranged with second liquid distributor, the second filler from top to bottom, and second liquid distributor is located under side take-off plate
End, second liquid distributor upper end are connected to the refluxing opening on cylinder by pipeline, and second liquid distributor lower end exists
Above second filler, third manhole is provided on cylinder on the outside of return duct；Hypomere cylinder is sequentially arranged with second liquid receipts from top to bottom
Storage, third liquid distribution trough, third filler, end socket, second liquid collector are located at below the second filler, third liquid distribution
Third liquid distribution trough, third liquid are connected by pipeline equipped with feed inlet, second liquid collector lower end on cylinder on the outside of device
Distributor lower end is located above third filler, and hypomere cylinder body bottom is sealed by end socket, and outlet at bottom is housed among end socket lower end,
There is reboiler mouth in outlet at bottom side equipped on end socket, and third filler lower end position has reboiler refluxing opening on cylinder,
The 4th manhole is provided on the cylinder of second liquid collector lower end pipeline outer fix, is opened on cylinder between end socket and third filler
There is the 5th manhole, end socket lower end is equipped with skirt.
The condenser include condensation segment cylinder, U-tube beam, bobbin carriage, baffle plate, vacuum orifice, recirculated cooling water into
Mouth and circulating cooling water out, condensation segment cylinder lower end connection transition conical shell upper end, condensation segment cylinder upper end connection bobbin carriage, bobbin carriage
Side is designed with circulating cooling water inlet, and opposite side is designed with circulating cooling water out, and condensation segment cylinder side upper end is designed with
Vacuum orifice, equipped with U-tube beam in condensation segment cylinder, U-tube Shu Shangduan connection bobbin carriages are designed with several in condensation segment cylinder
Baffle plate.
The side take-off plate periphery design cyclization connected in star, centre is the ball crown type plectane with float valve.
First liquid header and the surrounding of second liquid collector are designed with annular groove, in annular groove
Side lower end is connected with pipeline upper end, and pipeline lower end connects the upper end of liquid distribution trough.
It is an advantage of the invention that：
1st, vacuum orifice is set at the top of tower, realizes vacuum distillation, reduce the boiling point of ethylene glycol, reach energy saving
Purpose.
The 2nd, condenser is installed on the top of purifying ethylene glycol tower for the first time, realization integrates evaporation and condensation.It has done so
Two advantages：Firstth, it is fixed gas to vacuumize extraction, wherein and without glycol steam, not needing to so again from fixed gas
Middle extraction ethylene glycol.Secondth, condensation procedure is incorporated in distillation process, simplifies equipment, saved equipment investment.
3rd, in the appropriate place setting side take-off plate in tower top lower end or middle part upper end and ethylene glycol extraction mouth.Because
The defluent process of ethylene glycol liquid after overhead condensation starts to absorb heat again, when the heat of absorption is more than the heat needed for vaporization
During amount, ethylene glycol will vaporize once again.Therefore ethylene glycol liquid must be produced before gasification.The effect of side take-off plate is set
It is that ethylene glycol liquid is prevented to continue to dirty.
4th, side take-off plate is set as periphery as annular groove, and centre is the spherical plectane with float valve, and ascending air is from float valve
Pass through in hole, the liquid of decline is past by gear, is slipped into collecting tank rapidly from spherical surface, the ethylene glycol pole leaked down from float valve hole
It is few, separative efficiency is so improved well.
Description of the drawings
Fig. 1 is the schematic diagram of the present invention.
Fig. 2 is the schematic diagram of epimere cylinder of the present invention.
Fig. 3 is the schematic diagram of stage casing cylinder of the present invention.
Fig. 4 is the schematic diagram of hypomere cylinder of the present invention.
Fig. 5 is the vertical view of side take-off plate of the present invention.
Fig. 6 is the side view of side take-off plate of the present invention.
Specific embodiment
With reference to attached drawing 1-4, solidifying integral type purifying ethylene glycol tower is steamed, it includes cylinder 4, skirt 1, condenser, end socket 3, cylinder
Body 4 is divided into upper, middle and lower segment, and 41 upper end of epimere cylinder is equipped with condenser, and 41 upper end of epimere cylinder is connected by transition conical shell 9
Condenser is designed with the first liquid header 42 in epimere cylinder 41, the first liquid distribution trough 43, first fills out successively from top to bottom
Material 44 and side take-off plate 8, the first liquid header 42 are located at condenser lower end, and 42 lower end of the first liquid header passes through pipeline
The first liquid distribution trough 43 is connected, for the first liquid distribution trough 43 above the first filler 44, side take-off plate 8 is mounted on first
44 lower end of filler, 8 surrounding of side take-off plate are designed with annular groove 81,81 lower end of annular groove equipped with ethylene glycol extraction mouth 7 and
Ethylene glycol extraction mouth 7 leads to 41 outside subsequent processing device of cylinder, cylinder 41 on the outside of 42 lower end pipeline of the first liquid header
It puts and is provided with the first manhole 45, the second manhole 46 is provided on the cylinder 41 between the first filler 44 and side take-off plate 8；Stage casing cylinder
401 are sequentially arranged with second liquid distributor 402, the second filler 403 from top to bottom, and second liquid distributor 402 is adopted positioned at side line
8 lower end of ejecting plate, 402 upper end of second liquid distributor are connected to the refluxing opening 17 on cylinder 401, the second liquid by pipeline
402 lower end of body distributor is provided with third manhole 47 above the second filler 403 on cylinder 401 on the outside of return duct；Hypomere cylinder
410 are sequentially arranged with second liquid collector 411, third liquid distribution trough 412, third filler 413, end socket 3 from top to bottom, and second
Liquid header 411 is located at 403 lower section of the second filler, and feed inlet 18 is housed on 412 outside cylinder 410 of third liquid distribution trough,
411 lower end of second liquid collector connects third liquid distribution trough 412 by pipeline, and 412 lower end of third liquid distribution trough is located at
Above third filler 413,410 bottom of hypomere cylinder is sealed by end socket 3, equipped with outlet at bottom 2, bottom among 3 lower end of end socket
Exporting 2 sides has reboiler mouth 20 equipped on end socket 3, and 413 lower end position of third filler has reboiler refluxing opening 19 to be mounted in cylinder
On body 410, the 4th manhole 48, end socket 3 and are provided on the cylinder 410 of 411 lower end pipeline outer fix of second liquid collector
The 5th manhole 49 is provided between three fillers 413 on cylinder 410,3 lower end of end socket is equipped with skirt 1.
Fig. 2, the condenser include condensation segment cylinder 11, U-tube beam 12, bobbin carriage 14, baffle plate 10, vacuum orifice
16th, circulating cooling water inlet 13 and circulating cooling water out 15,11 lower end of condensation segment cylinder connection transition conical shell, 9 upper end, condensation
11 upper end of section cylinder connection bobbin carriage 14,14 side of bobbin carriage are designed with circulating cooling water inlet 13, and opposite side is designed with circulating cooling
Water out 15,11 side upper end of condensation segment cylinder are designed with vacuum orifice 16, and U-tube beam 12 is housed in condensation segment cylinder 11, U-shaped
12 upper ends connection bobbin carriage 14 is restrained, several baffle plates 10 are designed in condensation segment cylinder 11.
Such as Fig. 5-6, the 8 periphery design cyclization connected in star 82 of side take-off plate, centre is the ball crown type with float valve 83
Plectane 81.
First liquid header 42 and the surrounding of second liquid collector 411 are designed with annular groove, annular
Groove inside lower end is connected with pipeline upper end, and pipeline lower end connects the upper end of liquid distribution trough.
The present invention is in use, part 1（Skirt）It is the supporting member of entire tower.Part 3（Low head）, part 4（Cylinder）, part 9（It crosses
Cross conical shell）, part 11（Condensation segment cylinder）Form the operating space for the treatment of column.Thick ethylene glycol injection is wherein evaporated, condenses and makes
Ethylene glycol and impurity obtain initial gross separation.Tower top part is a U-tube bundle condenser, by part 12（Tube bank）, part 10（Baffle plate）、
Part 14（Bobbin carriage）Composition, part 13 and part 15 are respectively the inlet and outlet of recirculated cooling water.Manhole is for assembling and overhauling.In tower
Equipped with three sections of fillers, equipped liquid distribution puts device above every section of filler, and lower section is equipped with liquid header.Thick ethylene glycol is from part 18
（Feed inlet）It injects in the annular groove of liquid header, is sent into underlying distributor through delivery pipe, uniformly flows into filler, then
Tower reactor is flowed into across filler.Kettle liquid is by part 20（Remove reboiler mouth）With part 19（Reboiler refluxing opening）It recycles and steams through reboiler
Hair, the ethylene glycol gas of evaporation pass through multiple filling layers to reach tower top, and condensed device is cooled to ethylene glycol liquid, in the effect of gravity
Under flow downward, flow to part 8（Side take-off plate）Place, which is blocked, cannot continue to flowing down, from part 7（Ethylene glycol produces mouth）Outflow
Outside tower.An ethylene glycol part for extraction is sent into next procedure and continues to purify, and another part is sent to part 17（Refluxing opening）Make reflux
With.Unvaporized substance sinks to bottom, from part 2（Outlet at bottom）It takes away.The fixed gas at top is from part 16（Vacuum orifice）It takes away.
Separating-purifying to ethylene glycol is realized by above procedure.
Claims (3)
1. steaming solidifying integral type purifying ethylene glycol tower, it includes cylinder, skirt, condenser, and cylinder is divided into upper, middle and lower segment, epimere
Cylinder upper end is equipped with condenser, and epimere cylinder upper end connects condenser by transition conical shell, in epimere cylinder from top to bottom successively
The first liquid header, the first liquid distribution trough, the first filler and side take-off plate are designed with, the first liquid header is located at cold
Condenser lower end, the first liquid header lower end connect the first liquid distribution trough by pipeline, and the first liquid distribution trough is mounted in first
Above filler, side take-off plate is mounted on the first filler lower end, and side take-off plate surrounding is designed with annular groove, under annular groove
End leads to subsequent processing device on the outside of cylinder equipped with ethylene glycol extraction mouth and ethylene glycol extraction mouth, end pipe under the first liquid header
Cylinder position is provided with the first manhole on the outside of road, and the second manhole is provided on the cylinder between the first filler and side take-off plate；Stage casing
Cylinder is sequentially arranged with second liquid distributor, the second filler from top to bottom, and second liquid distributor is located at side take-off plate lower end,
Second liquid distributor upper end is connected to the refluxing opening on cylinder by pipeline, and second liquid distributor lower end is second
Above filler, third manhole is provided on cylinder on the outside of return duct；Hypomere cylinder be sequentially arranged with from top to bottom second liquid collector,
Third liquid distribution trough, third filler, end socket, second liquid collector are located at below the second filler, outside third liquid distribution trough
Third liquid distribution trough, third liquid distribution are connected by pipeline equipped with feed inlet, second liquid collector lower end on side neck body
Device lower end is located above third filler, and hypomere cylinder body bottom is sealed by end socket, equipped with outlet at bottom, bottom among end socket lower end
There is reboiler mouth in outlet side, and third filler lower end position has reboiler refluxing opening on cylinder, second liquid collector
The 4th manhole is provided on the cylinder of lower end pipeline outer fix, is provided with the 5th manhole between end socket and third filler on cylinder, is sealed
Head lower end is equipped with skirt；The side take-off plate periphery design cyclization connected in star, centre is the ball crown type plectane with float valve.
2. according to claim 1 steam solidifying integral type purifying ethylene glycol tower, it is characterized in that the condenser includes condensation
Section cylinder, U-tube beam, bobbin carriage, baffle plate, vacuum orifice, circulating cooling water inlet and circulating cooling water out, condensation segment cylinder
Lower end connection transition conical shell upper end, condensation segment cylinder upper end connection bobbin carriage, bobbin carriage side is designed with circulating cooling water inlet, another
Side is designed with circulating cooling water out, and condensation segment cylinder side upper end is designed with vacuum orifice, U-tube is housed in condensation segment cylinder
Beam, U-tube Shu Shangduan connection bobbin carriages are designed with several baffle plates in condensation segment cylinder.
3. according to claim 1 steam solidifying integral type purifying ethylene glycol tower, it is characterized in that first liquid header
Annular groove is designed with the surrounding of second liquid collector, annular groove inside lower end is connected with pipeline upper end, pipeline
Lower end connects the upper end of liquid distribution trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610496904.7A CN105999753B (en) | 2016-06-30 | 2016-06-30 | Steam solidifying integral type purifying ethylene glycol tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610496904.7A CN105999753B (en) | 2016-06-30 | 2016-06-30 | Steam solidifying integral type purifying ethylene glycol tower |
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| Publication Number | Publication Date |
|---|---|
| CN105999753A CN105999753A (en) | 2016-10-12 |
| CN105999753B true CN105999753B (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610496904.7A Active CN105999753B (en) | 2016-06-30 | 2016-06-30 | Steam solidifying integral type purifying ethylene glycol tower |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109022052B (en) * | 2018-08-16 | 2020-11-27 | 江苏永大化工机械有限公司 | Self-heating purifying furnace |
| CN110393939A (en) * | 2019-09-05 | 2019-11-01 | 江苏美阳科技有限公司 | Precise electronic industry spent glycol depth rectifier unit |
| CN111470965B (en) * | 2020-04-17 | 2023-05-30 | 郯城众一科环化工有限公司 | Dimethyl oxalate synthesizing device and process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB740764A (en) * | 1952-03-25 | 1955-11-16 | Exxon Research Engineering Co | Improvements in fractionating towers for the vacuum distillation of heavy hydrocarbon oils |
| CN203123600U (en) * | 2013-04-03 | 2013-08-14 | 青岛科技大学 | Toluene diamine cleaning and dehydrating device |
| CN205145644U (en) * | 2015-11-30 | 2016-04-13 | 辽阳瑞兴化工有限公司 | Carbon disulfide rectifying column of condenser is put to top of tower in -band |
| CN205182221U (en) * | 2015-11-30 | 2016-04-27 | 江苏鼎龙科技有限公司 | Rectification device |
-
2016
- 2016-06-30 CN CN201610496904.7A patent/CN105999753B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB740764A (en) * | 1952-03-25 | 1955-11-16 | Exxon Research Engineering Co | Improvements in fractionating towers for the vacuum distillation of heavy hydrocarbon oils |
| CN203123600U (en) * | 2013-04-03 | 2013-08-14 | 青岛科技大学 | Toluene diamine cleaning and dehydrating device |
| CN205145644U (en) * | 2015-11-30 | 2016-04-13 | 辽阳瑞兴化工有限公司 | Carbon disulfide rectifying column of condenser is put to top of tower in -band |
| CN205182221U (en) * | 2015-11-30 | 2016-04-27 | 江苏鼎龙科技有限公司 | Rectification device |
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| Publication number | Publication date |
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| CN105999753A (en) | 2016-10-12 |
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Address after: 9 Huaxing Road, Jiuhua Town, Rugao City, Nantong City, Jiangsu Province, 226500 Patentee after: Jiangsu Yongda Chemical Machinery Co.,Ltd. Address before: 9 Huaxing Road, Jiuhua Town, Rugao City, Nantong City, Jiangsu Province, 226500 Patentee before: JIANGSU YONGDA CHEMICAL MACHINERY CO.,LTD. |
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