CN106669214A - Wall-dividing rectifying tower - Google Patents
Wall-dividing rectifying tower Download PDFInfo
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- CN106669214A CN106669214A CN201510740294.6A CN201510740294A CN106669214A CN 106669214 A CN106669214 A CN 106669214A CN 201510740294 A CN201510740294 A CN 201510740294A CN 106669214 A CN106669214 A CN 106669214A
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- 239000007788 liquid Substances 0.000 claims abstract description 132
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 37
- 239000006185 dispersion Substances 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 10
- 239000000470 constituent Substances 0.000 claims description 7
- 238000004821 distillation Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000003908 quality control method Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 62
- 239000000047 product Substances 0.000 description 22
- 239000007791 liquid phase Substances 0.000 description 14
- 239000012071 phase Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- 230000011218 segmentation Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000013067 intermediate product Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- B01D3/42—Regulation; Control
- B01D3/4211—Regulation; Control of columns
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention discloses a wall-dividing rectifying tower. According to the invention, a vertical separator plate is arranged in the rectifying tower, the tower is divided into four parts of a common rectifying section at top of the tower, a charging section at intermediate of the tower, a discharging section at the intermediate of the tower, and a common stripping section at the bottom of the tower; the rectifying tower also comprises a liquid distribution control system and a gas distribution control system; the liquid distribution control system comprises a liquid distributor, a liquid distribution computer control system, a grade I liquid collection plate, and a grade II liquid collection plate, the liquid distributor is arranged between the separator plate and an upper common rectifying section, grade I liquid collection plate and the grade II liquid collection plate are respectively arranged on the two sides of the separator plate; and the gas distribution control system comprises a gas distributor and a gas distribution computer control system. The rectifying tower can respectively, independently and flexibly adjust the liquid backflow distribution ratio and gas distribution ratio at two sides of the separator plate, installation and control are convenient, split ratio control is accurate, and the ideal product separating effect is reached.
Description
Technical field
The present invention relates to a kind of new bulkhead type rectification column.
Background technology
Refinery is energy producing unit while being also energy ezpenditure rich and influential family, and distillation process in refinery's energy consumption in occupation of sizable proportion.
At present, refinery and chemical plant distillation process mainly use traditional tower and carry out the separation of material, and N number of product is obtained in theory then to be needed to build N-1 rectifying column, and corresponding investment and energy consumption are larger.Therefore in order to reduce investment and process energy consumption, it is optimal selection to develop new rectifying device.Wherein, divided wall column is compared to haggle over and can greatly reduce energy consumption, reduce investment in traditional rectifying column, is typical novel energy-conserving rectifying device.
Divided wall column is, in the radial direction vertical partition plate of traditional rectifying column middle setting one, space in tower to be divided into into 4 parts：Dividing plate left side（Feed zone）, dividing plate right side（Intermediate products area）, dividing plate upside（Public rectifying section）With dividing plate downside（Public stripping section）.Rectifying tower with bulkhead（DWC）For multicomponent rectification has big advantage.Due to, without air-teturning mixed phenomenon, than conventional essence tower energy-conservation 20% ~ 50% being presented in DWC, simultaneously because 1 tower and 1 reboiler are reduced, can investment reduction 30% or so.
Rectifying tower with bulkhead is a kind of special shape of complete thermal coupled rectifying tower, two towers are merged into into a tower, the requisite difficulty that increased tower control while investment is reduced, the liquid and gas assignment problem of dividing plate both sides is it is critical only that, it is that divided wall column realizes energy-efficient key that gas-liquid allocation proportion is adjusted.
US2011139604A1 discloses a kind of divided wall column, the tower tower internal partition employs unsymmetric form, with feeding and discharging in tower dividing plate is adjusted as asymmetric point, so that end spaces increases under feed side charging aperture, simultaneously reduce discharge end lower side space, reach the purpose of gas-liquid phase load in compensation tower.The divided wall column only address only the uneven problem of the different interval interior liquid phases in demarcation strip both sides, be not directed to the distribution control problem of liquid gas.
US4230533 discloses a kind of divided wall column gas-liquid flow-dividing control method, and the liquid backflow used in the tower is, with liquid level difference as power, to be adjusted by flowmeter；Bottom of towe uprising gas realizes that distribution is adjusted by way of by-passing, and not interrelated between liquid backflow distribution and gas distribution.The flowing of liquid is simply with liquid level difference motive force in the method, due to being generation that bypass mode inevitably results in vapour lock, therefore is easy to produce the not smooth situation of liquid communication in actual moving process, is unfavorable for the even running of device.
US5755933
A kind of divided wall column is disclosed, the divided wall column is that demarcation strip is extended to the top or bottom of divided wall column, then flow back respectively to realize the distribution to withdrawing fluid and uprising gas by condenser or reboiler.
CN201110192770.7 discloses a kind of divided wall column, and the tower distributes gentle phase partitioning problem and proposes a kind of new control program for liquid phase in tower, it is intended to solves the gas-liquid distribution control problem of divided wall column, realizes the flexible operating of tower.But it is not enough to there is also some：（1）Gas phase dispensing controller is allocated control to gas using rotary steering demarcation strip, but the rotation of guide plate adopts knob manual rotation mode, need in tower wall perforate during installation, partitioned column sealing property is caused to weaken, easily there is leakage problem in tower tapping in high-voltage operation, and potential safety hazard is carried out to device band while workman's amount of labour is increased；（2）The gas flow monitoring of dividing plate both sides adopts pressure measurement mode, this mode can be used for tower pressure interior force monitoring, but it is then not accurate enough as tower operating parameter, this be because the compressibility of gaseous substance in tower causes, pressure gauge cannot be distinguished by due to gas flow increase cause pressure rise or due in tower liquid flooding cause pressure to rise.Therefore, gas phase distribution ratio is controlled using pressure and there are problems that control parameter is inaccurate, easily cause tower operation fluctuation.
Being introduced into the air-liquid distribution apparatus and column plate that cause to be widely used at present in common rectifying tower the requirement of dividing wall column can not be met in version and mass transfer effect due to dividing plate；Divided wall column requires tower internals higher than conventional tower.In existing bulkhead type rectification column, because therefore the excessive demand of tower plate structure needs to carry out column plate particular design, most divided wall column uses structured packing and carries out gas-liquid mass transfer.There are two key problem in technology in material filling type divided wall column, one is gas-liquid distribution control problem in tower, and two is the dispersion after liquid phase is allocated in dividing plate both sides and wall flow problem.
The content of the invention
It is difficult for the distribution of existing rectifying tower with bulkhead liquid phase, distribution ratio control is inaccurate, gas phase is difficult to segmentation and filler inner wall of tower flow problem, the invention provides a kind of new rectifying tower with bulkhead, solve that liquid distribution is uneven and wall flow problem, it is possible to achieve the independent flexible allocation of liquids and gases and control problem.The separating effect of product is improved, simplifies the control problem of tower.
The rectifying tower with bulkhead of the present invention, arranges one piece of vertical partition plate in tower, and tower is divided into into 4 parts：Discharging section and the public stripping section of bottom of towe in feed zone, tower in the public rectifying section of tower top, tower；The rectifying tower with bulkhead also includes that liquid distributes control system and gas distribution control system；Liquid distribution control system includes liquid distributor, liquid distribution computerized control system and I and II liquid collecting plate, and liquid distributor is installed between the public rectifying section of dividing plate and top, and dividing plate both sides are respectively provided with I and II liquid collecting plate；Gas distribution control system includes gas distributor and gas distribution computerized control system；Liquid distributor is made up of the guiding fluid plate and electromagnet screen for being provided with magnet；Gas distributor is made up of the gas guide plate and electromagnet screen for being provided with magnet.
In rectifying tower with bulkhead of the present invention, described guiding fluid plate is located at electromagnet screen top, guiding fluid plate with dividing plate in same plane, the public 1 ~ 200mm of rectifying section bottom of guide plate distance from top, preferably 10 ~ 50mm；The vertical range of guide plate distance from bottom lower section electromagnet screen center is 1 ~ 200mm, preferably 10 ~ 50mm；Guiding fluid plate is made up of upper and lower two parts, guiding fluid plate top is that upper half is circular, bottom is rectangle, guiding fluid plate along the radial direction perpendicular to semicircle diameter into axial symmetry, the circular a diameter of 0.8 ~ 1D of upper half, it is preferred that 0.85 ~ 0.95D, a length of 0.6 ~ the 0.9D of lower rectangular, preferably 0.6 ~ 0.8D, a width of 0.2 ~ 0.6D of rectangle, preferably 0.3 ~ 0.5D, D are tower diameter；Rotary shaft is set at guiding fluid plate and upper half round diameter, guiding fluid plate is rotated along rotary shaft, and rotational angle is -90 ~ 90 °, preferably -45 ~ 45 °, bottom is inlayed and fixes a rectangular magnet in lower rectangular plate, and magnet size is defined by meeting guiding fluid plate flexible rotating.
Described electromagnet screen is the grid of one group of horizontal positioned, each grid hollow design and through tower wall, grid is fixed in tower wall in the form of seal weld, grid inside loads electromagnet bar, 3 ~ 20mm of Grill space, it is preferred that 3 ~ 10mm, electromagnet screen screen adopts stainless steel, prevents from being magnetized.Electromagnet screen is located at dividing plate top, and grid is parallel with dividing plate top, and grid is 1 ~ 200mm, preferably 10 ~ 50mm with the vertical range on dividing plate top.
In rectifying tower with bulkhead of the present invention, the rotational angle of guiding fluid plate be by computerized control system control electromagnet screen on diverse location grid electromagnet bar and guide plate upper magnet between produce attraction rotated, will the corresponding position of rotational angle electromagnet bar be powered.
In rectifying tower with bulkhead of the present invention, the control mode of the liquid distribution of multicomponent mixture separation process has following two：
First, the liquid distribution ratio according to needed for technological requirement initialization system in computerized control system, the guiding fluid plate anglec of rotation distributed in computerized control system control liquid distributor by liquid；
2nd, the light component product design for flowing out tower top is input into computerized control system as quality control index, in distillation process, detect in the concentration of the outer light component product flowed out to tower top of tower, then concentration signal is passed to into computerized control system, the rotational angle of guiding fluid plate is adjusted by computerized control system, automatically controlling for liquid distribution is realized.For example：Three components（A/B/C）Mixture is separated, wherein molecular size range A<B<C, willOverhead product A ConcentrationAs quality control index.
In rectifying tower with bulkhead of the present invention, described one-level liquid collecting plate width is 0.25 ~ 0.4D, preferably 0.25 ~ 0.3D, and one-level liquid collecting plate and horizontal direction angle are -10 ~ 0 °, preferably -5 ~ -2 °, will be collected through the liquid of guiding fluid plate while preventing wall stream；Two grades of liquid collecting plate width are 0.25 ~ 0.4D, preferably 0.25 ~ 0.3D, 0 ~ 10 ° of two grades of liquid collecting plates and horizontal direction angle, preferably 2 ~ 5 °；One-level liquid collecting plate and the interlaced arrangement of two grades of liquid collecting plates, liquid collecting plate one end is fixed on tower wall or dividing plate, can be according to gas phase load adjustment liquid collecting plate installing space, and spacing range is 50 ~ 500mm, preferably 50 ~ 200mm.
In rectifying tower with bulkhead of the present invention, two grades of liquid collecting plate bottom evens arrange some liquid guide flow pipes, draft-tube diameter is calculated according to liquid phase load and determined, mozzle quantity is 5 ~ 100, preferably 5 ~ 50, mozzle is perpendicular to dividing plate and radially arranged, and each liquid guide flow bottom of the tube is uniformly arranged some liquid dispersion mouths, dispersion mouth diameter increases step by step along liquid flow direction, and each mozzle lower liquid dispersion mouth number is calculated according to water conservancy diversion length of tube and Ta Nei liquid phase loads and determined.
In rectifying tower with bulkhead of the present invention, gas guide plate is lower semi-circular, lower half circle top is connected by the rotary shaft arranged with dividing plate bottom, gas guide plate rotational angle is -90 ~ 90 °, it is preferred that -45 ~ 45 °, a diameter of 0.8 ~ the 1D of semicircle, preferably 0.85 ~ 0.95D, gas guide plate inner bottom part inlays one block of arch magnet.Gas guide plate is located at electromagnet screen top, and vertical range of the gas guide plate bottom magnet apart from lower section electromagnet screen center is 1 ~ 200mm, preferably 10 ~ 50mm.
In rectifying tower with bulkhead of the present invention, electromagnet screen is identical with electromagnet cascade plate design structure in liquid distributor in gas distributor, and electromagnet screen center grid is with dividing plate in same plane.
In rectifying tower with bulkhead of the present invention, the rotational angle of gas guide plate be by computerized control system control electromagnet screen on diverse location grid electromagnet bar and guide plate upper magnet between produce attraction rotated, will the corresponding position of rotational angle electromagnet bar be powered.
In rectifying tower with bulkhead of the present invention, the gas distribution control mode of multicomponent mixture separation process has following two：
First, desired gas distribution ratio is set in computerized control system according to technological requirement, the gas guide plate rotational angle in gas distributor is controlled by computerized control system；
2nd, the heavy constituent product design for flowing out bottom of towe is input into computerized control system as quality control index, in distillation process, detect in the concentration of the outer heavy constituent product flowed out to bottom of towe of tower, then concentration signal is passed to into computerized control system, the rotational angle of gas guide plate is adjusted by computerized control system, automatically controlling for gas distribution is realized.For example：Three components（A/B/C）Mixture is separated, wherein molecular size range A<B<C, using bottom product C concentration as quality control index.
In rectifying tower with bulkhead of the present invention, guiding fluid plate, electromagnet bar screen and gas guide plate, the mounting design size of electromagnet bar screen can be adjusted suitably according to actual material characteristic.
Novel rectifying tower with bulkhead of the present invention has the advantage that compared with prior art：
（1）Gas distributor and liquid distributor distribute regulative mode using electromagnetic type, the rotational angle of liquids and gases guide plate is controlled using the attraction between the magnet that electromagnetic control system passes through setting on screen and guide plate, by the concentration for detecting the outer product of tower, then by signal transmission to computerized control system, the independent flexible allocation and control problem of liquids and gases can be realized, the separating effect of product is improved, simplifies the control problem of tower.In the form of seal weld, without perforate in tower wall again, tower body can be effectively prevented from risk of leakage is installed.
（2）Cancel public rectifying section lower liquid liquid collecting plate, increase the I and II liquid collecting plate of demarcation strip both sides, gas phase can be flowed freely so as to reduce tower internal drop, saving energy consumption between two-stage liquid collecting plate.The design of dividing plate both sides liquid collecting plate and liquid dispersion mouth can be realized distributing the collection completely and dispersion of liquid, it is to avoid liquid distribution is uneven and wall flow problem.
Description of the drawings
Fig. 1 is Novel rectifying tower with bulkhead structural representation of the present invention.
Fig. 2 is electromagnet grid plate structure schematic diagram of the present invention.
Fig. 3 is fluid present invention guide board structure schematic diagram.
Fig. 4 is gas guide board structure schematic diagram of the present invention.
Fig. 5 is dividing plate both sides I and II liquid liquid collecting plate structure schematic side view of the present invention.
Fig. 6 is secondary liquid liquid collecting plate bottom liquid dispersion mouth structure elevational schematic view of the present invention.
Wherein Fig. 1：1- overhead products, 2- overhead reflux pumps, 3- tower tops point flow container, 4- tower top coolers, 5- overhead reflux liquids, the public rectifying sections of 6-, 7- guiding fluid plates, 8- guiding fluid plate lower magnets, 9- liquid electric magnetic iron bar screens, 10- liquid distributes computerized control system, 11- one-level liquid collecting plates, bis- grades of liquid collecting plates of 12-, 13- liquid dispersion mouths, 14- raw materials, 15- gas guide plates, 16- gas guide plate magnet, 17- gases distribute computerized control system, 18- gas electromagnet screens, the public stripping sections of 19-, 20- bottom of towe Produced Liquids, 21- bottom products, 22- tower bottom reboilers, 23- bottom of towe boils again gas, 24- intermediate products, 25- liquid distributes control signal, 26- gases distribute control signal；
Fig. 2：Connection cable between 201- electromagnet bar screens and control computer, 202- tower walls, 9- electromagnet bars；
Fig. 3：301- guiding fluid plates, 302- guiding fluid plate rotary shafts, 303- magnet；
Fig. 4：401- gas guide plates, 402- gas guide plate rotary shafts, 403- magnet；
Fig. 5：501- dividing plates, bis- grades of liquid collecting plates of 502-, 503- one-level liquid collecting plates, 504- tower walls, 505- liquid dispersion mouths.
Specific embodiment
Rectifying tower with bulkhead of the present invention is described in detail with reference to Fig. 1.
Rectifying tower with bulkhead of the present invention, arranges one piece of vertical partition plate in tower, and tower is divided into into 4 parts：Discharging section and the public stripping section of bottom of towe in feed zone, tower in the public rectifying section of tower top, tower.Guiding segmentation is carried out by guiding fluid plate Jing after public rectifying section from the liquid of overhead condenser backflow, the liquid after segmentation respectively enters dividing plate both sides two-stage liquid liquid collecting plate and carries out liquid dispersion.The gas returned from tower bottom reboiler carries out guiding segmentation into after the common stripping section of tower by gas guide plate, and respectively enteing dividing plate both sides carries out gas-liquid mass transfer separation.
Material to be separated enters divided wall column feed side pre-separation section from 14, and feed liquid carries out initial gross separation, and light component rises heavy constituent and declines.Light component and intermediate species are further separated in public rectifying section 6, and tower top light component Jing cooler 4 enters tower top knockout drum 3, and liquid phase point two parts after separation a, part returns tower top as overhead product discharging, a part as withdrawing fluid.Liquid phase step by step tray under gravity field action declines, and liquid carries out guiding segmentation by guide plate 7, and liquid respectively enters the level liquid liquid collecting plate 11 of dividing plate both sides after shunting.Liquid distributes control signal（Tower top light component product design signal）25 transmission liquid distribution computerized control systems 10, computerized control system 10 controls the anglec of rotation of guiding fluid plate, and the rotation and liquid distribution of guiding fluid plate are realized under 8 and 9 interaction.Liquid is through two-stage liquid collecting plate（11 and 12）Collect, liquid guide flow pipe respectively enters dividing plate both sides tower section and separated after disperseing, the separating device of intermediate products 24 after separation.The reflux gas 23 that tower bottom reboiler is produced respectively enter dividing plate both sides after public stripping section Jing after gas guide plate 15 is allocated, distribute diverse location suction iron bar and magnet 16 on the control screen of computerized control system 17 by gas to be interacted, control gas distribution.Gas distributes control signal（Bottom of towe heavy constituent concentration）26.Bottom of towe liquid phase 20 is a part of to be returned in tower Jing after reboiler 22 is heated, and a part goes out device as product 21.
Guide plate of the present invention control liquid distribution and the distribution of bottom of towe uprising gas, can the liquid of respective independent flexible modulation demarcation strip both sides flow back distribution ratio and gas distribution ratio, reach preferable product separating effect.
Embodiment
Mixed material ABC enters rectifying tower with bulkhead feed side, and light component vaporization in a heated state rises（A and B）, heavy constituent is with liquid form decline（B and C）.After condensation cooling, a part goes out device to top gaseous phase material as overhead product A（Containing micro intermediate species B）, it is interior as backflow liquid phase that a part returns tower.Withdrawing fluid carries out guiding cutting through public rectifying section by liquid distributor, controls liquid distribution ratio；Using overhead product A concentration as control signal output liquid distribution computerized control system, the guiding fluid plate anglec of rotation is adjusted, realize that liquid distribution is automatically controlled and adjusted, it is ensured that overhead product quality index.Liquid phase respectively enters dividing plate both sides after distribution, and in exit side intermediate products B is obtained.Liquid phase is entered after bottom of towe and realizes that part vaporizes and returns as backflow gas phase in tower under reboiler effect, and remaining liquid phase then goes out device as bottom product C（Containing microcomponent B）.Backflow gas phase is split through public stripping section by gas distributor, controls gas distribution ratio；Bottom product C concentration is exported as control signal and distributes computerized control system to gas, adjust the gas guide plate anglec of rotation, realize automatically controlling and adjusting for gas distribution, it is ensured that bottom product quality index.
Claims (12)
1. a kind of rectifying tower with bulkhead, arranges one piece of vertical partition plate in tower, and tower is divided into into 4 parts：Discharging section and the public stripping section of bottom of towe in feed zone, tower in the public rectifying section of tower top, tower；It is characterized in that：The rectifying tower with bulkhead also includes that liquid distributes control system and gas distribution control system；Liquid distribution control system includes liquid distributor, liquid distribution computerized control system and I and II liquid collecting plate, and liquid distributor is installed between the public rectifying section of dividing plate and top, and dividing plate both sides are respectively provided with I and II liquid collecting plate；Gas distribution control system includes gas distributor and gas distribution computerized control system；Liquid distributor is made up of the guiding fluid plate and electromagnet screen for being provided with magnet；Gas distributor is made up of the gas guide plate and electromagnet screen for being provided with magnet.
2. according to the rectifying tower with bulkhead described in claim 1, it is characterised in that：Described guiding fluid plate is located at electromagnet screen top, guiding fluid plate and dividing plate in same plane, the public 1 ~ 200mm of rectifying section bottom of guide plate distance from top；The vertical range of guide plate distance from bottom lower section electromagnet screen center is 1 ~ 200mm.
3. according to the rectifying tower with bulkhead described in claim 1 or 2, it is characterised in that：Guiding fluid plate is made up of upper and lower two parts, and guiding fluid plate top is that upper half is circular, and bottom is rectangle, guiding fluid plate along the radial direction perpendicular to semicircle diameter into axial symmetry, upper half circular a diameter of 0.8 ~ 1D, a length of 0.6 ~ 0.9D of lower rectangular, a width of 0.2 ~ the 0.6D of rectangle, D are tower diameter；Rotary shaft is set at guiding fluid plate and upper half round diameter, and guiding fluid plate is rotated along rotary shaft, and rotational angle is -90 ~ 90 °, and bottom is inlayed and fixes a rectangular magnet in lower rectangular plate.
4. according to the rectifying tower with bulkhead described in claim 1, it is characterised in that：Described electromagnet screen is the grid of one group of horizontal positioned, each grid hollow design and through tower wall, grid is fixed in tower wall in the form of seal weld, grid inside loads electromagnet bar, 3 ~ 20mm of Grill space, electromagnet screen is located at dividing plate top, and grid is parallel with dividing plate top, and grid is 1 ~ 200mm with the vertical range on dividing plate top.
5. according to the rectifying tower with bulkhead described in claim 1 or 4, it is characterised in that：The rotational angle of guiding fluid plate is to produce attraction between the electromagnet bar and guide plate upper magnet that the diverse location grid on electromagnet screen is controlled by computerized control system to be rotated.
6. according to the rectifying tower with bulkhead described in claim 1 or 2, it is characterised in that：Multicomponent mixture separation process liquid distribution control mode have it is following two in any one：（1）The liquid distribution ratio according to needed for technological requirement initialization system in computerized control system, the guiding fluid plate anglec of rotation distributed in computerized control system control liquid distributor by liquid；（2）The light component product design that tower top is flowed out is input into computerized control system as quality control index, in distillation process, detect in the concentration of the outer light component product flowed out to tower top of tower, then concentration signal is passed to into computerized control system, the rotational angle of guiding fluid plate is adjusted by computerized control system, automatically controlling for liquid distribution is realized.
7. according to the rectifying tower with bulkhead described in claim 1, it is characterised in that：Described one-level liquid collecting plate width is 0.25 ~ 0.4D, and one-level liquid collecting plate and horizontal direction angle are -10 ~ 0 °；Two grades of liquid collecting plate width are 0 ~ 10 ° of 0.25 ~ 0.4D, two grades of liquid collecting plates and horizontal direction angle；One-level liquid collecting plate and the interlaced arrangement of two grades of liquid collecting plates, the spacing range of adjacent firsts and seconds liquid collecting plate is 50 ~ 500mm.
8. according to the rectifying tower with bulkhead described in claim 1 or 7, it is characterised in that：Two grades of liquid collecting plate bottom evens arrange some liquid guide flow pipes, and mozzle is perpendicular to dividing plate and radially arranged, and each liquid guide flow bottom of the tube is uniformly arranged some liquid dispersion mouths, and dispersion mouth diameter increases step by step along liquid flow direction.
9. according to the rectifying tower with bulkhead described in claim 1, it is characterised in that：Gas guide plate is lower semi-circular, and lower half circle top is connected by the rotary shaft arranged with dividing plate bottom, and gas guide plate rotational angle is -90 ~ 90 °, and a diameter of 0.8 ~ 1D of semicircle, gas guide plate inner bottom part inlays one block of arch magnet.
10. according to the rectifying tower with bulkhead described in claim 1 or 9, it is characterised in that：Gas guide plate is located at electromagnet screen top, and vertical range of the gas guide plate bottom magnet apart from lower section electromagnet screen center is 1 ~ 200mm；Electromagnet screen center grid and dividing plate are in same plane in gas distributor.
11. according to the rectifying tower with bulkhead described in claim 1, it is characterised in that：The rotational angle of gas guide plate is that the electromagnet bar and guide plate upper magnet of the diverse location grid on gas distribution computerized control system control electromagnet screen produce attraction and rotated.
12. according to the rectifying tower with bulkhead described in claim 1 or 11, it is characterised in that：Multicomponent mixture separation process, gas distribution control mode have it is following two in any one：（1）Desired gas distribution ratio is set in computerized control system according to technological requirement, the gas guide plate rotational angle in gas distributor is controlled by computerized control system；（2）The heavy constituent product design that bottom of towe is flowed out is input into computerized control system as quality control index, in distillation process, detect in the concentration of the outer heavy constituent product flowed out to bottom of towe of tower, then concentration signal is passed to into computerized control system, the rotational angle of gas guide plate is adjusted by computerized control system, automatically controlling for gas distribution is realized.
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| CN201510740294.6A CN106669214B (en) | 2015-11-05 | 2015-11-05 | A kind of rectifying tower with bulkhead |
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| CN201510740294.6A CN106669214B (en) | 2015-11-05 | 2015-11-05 | A kind of rectifying tower with bulkhead |
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| CN106669214B CN106669214B (en) | 2019-01-08 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126366A (en) * | 2018-02-07 | 2018-06-08 | 河北工业大学 | A kind of improved next door tower gas phase distribution ratio regulating device |
| CN111344049A (en) * | 2017-11-14 | 2020-06-26 | 科氏-格利奇有限合伙公司 | Mass transfer assembly and column with dividing wall and methods involving same |
| CN111375219A (en) * | 2018-12-31 | 2020-07-07 | 中国石油化工股份有限公司 | Dividing wall tower and dividing wall rectification method |
| CN111686470A (en) * | 2020-06-23 | 2020-09-22 | 江西省科学院生物资源研究所 | Device and method for producing specific fingerprint polycosanol |
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| CN113117361A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | Upper partition plate thermal coupling rectifying tower and cyclohexanol refining and separating process |
| CN113117362B (en) * | 2019-12-31 | 2022-08-12 | 中国石油化工股份有限公司 | Liquid phase distribution control device and partition plate rectifying tower comprising same |
| CN113117361B (en) * | 2019-12-31 | 2022-10-11 | 中国石油化工股份有限公司 | Upper partition plate thermal coupling rectifying tower and cyclohexanol refining and separating process |
| CN111686470A (en) * | 2020-06-23 | 2020-09-22 | 江西省科学院生物资源研究所 | Device and method for producing specific fingerprint polycosanol |
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