CN201179356Y - High-efficiency rotating distillation bed - Google Patents
High-efficiency rotating distillation bed Download PDFInfo
- Publication number
- CN201179356Y CN201179356Y CNU2008200763012U CN200820076301U CN201179356Y CN 201179356 Y CN201179356 Y CN 201179356Y CN U2008200763012 U CNU2008200763012 U CN U2008200763012U CN 200820076301 U CN200820076301 U CN 200820076301U CN 201179356 Y CN201179356 Y CN 201179356Y
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- liquid
- bed
- gas
- housing
- rectifying
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Abstract
The utility model relates to a rectifying device, in particular to a high-efficient rotary rectifying bed which solves the problems existing in the prior art that the separating capability of the equipment is low, the gas-liquid exchange effect is poor, and the phenomena that the foam enters the belt and the liquid drowns the bed can easily occur. The rectifying bed includes a shell body, in which at least one layer of rotary stuffing bed driven by a rotating shaft is arranged; the rotary stuffing bed consists of a lower supporting disk provided with through holes, an annular upper disk provided with ventholes, an inner barrate, an outer barrate, wherein, the annular upper disk together with the inner barrate and the outer barrate as well as the lower supporting disk form an annular cavity, stuffing is filled in the annular cavity, a feeding pipe is arranged on the shell body on the upper part of each layer of rotary stuffing bed, a liquid distributor of the feeding pipe is arranged on the inner side of the annular cavity, a liquid receiving tray is arranged in the shell body and is arranged under the lower supporting disk, and a liquid lowering tube is arranged on the shell body above the liquid receiving disk. After multistage stuffing, the contact duration and area of the gas and the liquid are increased, the process is strengthened, and the efficiency is improved.
Description
Technical field
The utility model relates to a kind of rectifier unit, is specially a kind of the highly effective spin-rectifying bed of gas, liquid strengthening transfer process and transmission efficiency of improving.
Background technology
Rectifying is a mass transfer, diabatic process, industrial normal mix by the microcosmic of strengthening gas, liquid, and improve the contact area of gas, liquid and prolong time of contact of gas, liquid, improve the separating power of equipment.Occasions such as the absorption of gas such as petrochemical industry, Coal Chemical Industry, pharmacy, metallurgy, light industry, fiery explosive industry, liquid contact, rectifying, desorb, chemical reaction are had a wide range of applications.
In recent years, revolving bed centrifugal force field reinforcement transmission that produces and the technology of reacting have appearred utilizing.It has greatly strengthened mass transfer intensity from the aspects such as liquid flooding limit that improve contact area and equipment operation in the unit volume.Make tens meters high towers dwindle into high only 2 meters revolving bed, this is breakthrough progress for traditional mass transfer, heat transfer technology.As U.S. Pat 4382900 disclosed a kind of centrifugal gas-liquid separation devices, Russian Patent SU127408 is disclosed to be the revolving bed device of application purpose with rectifying, the disclosed rotating bed super gravity field of Chinese patent CN105910 and CN1686591 is strengthened transmission and reaction unit and multilayer hypergravity swinging bed device etc., all belongs to this type of.
The structure of U.S. Pat 4382900 comprises fixedly casing, in be provided with disc-like rotor, the ring packing layer is housed on the rotor, stretch into the liquid distribution trough of ring packing layer mid portion under the feed tube of center, in the ring packing, have gas on the outer ring surface, liquid hole, other parts keep airtight, liquid enters filler from the hole of filler inner ring surface, under super gravity field, radially diffusion, the air inlet pipe of gas slave shell-side face enters, under the effect of barometric gradient, enter filler by the ring packing outer ring surface, in filler, gas-liquid phase counter current contacting, after transmission or the reaction, gas is discharged by blast pipe, and liquid is thrown out of filler, discharges from the discharging tube of bottom of shell.
Revolving bed shown in the Russian Patent SU127408 is the purpose for distillation operation.Main structure is to have arranged two layers of packing layer on rotor, promptly away from the packing layer of rotor center as stripping section, near the packing layer at center as rectifying section.The raw material feed tube is set between rectifying section and stripping section, and liquid return tube is placed in the rotor center place.This patent is added second layer filler, realizes a rectifying.
Revolving bed shown in the Chinese patent CN105910 is to have added in the revolving bed center to have added an annular or a cylindrical revolving part, the liquid that utilizes centrifugal force field to remove to carry secretly in the gas, adopt the feed tube form of various ways simultaneously, improved operating gas velocity, evenly liquid distribution, strengthen mass transfer effect, and then improved production capacity.
Baffle type revolving bed shown in the Chinese patent CN1686591, its core component is the baffling dish that is made of the different-diameter concentric turns of Xiang Qian up and down; The baffling dish that is positioned at the top is fixed on the housing, is quiet baffling dish; What match with quiet baffling dish is the moving baffling dish that is embedded in its below mutually, and moving baffling dish is fixed on the rotating shaft and with axle and rotates.Gas enters cavity by air inlet, along the gap of dynamic and static baffling dish circuitously by outer rim to center flow, after a body is left in the gas outlet; Liquid enters from inlet, and (drainage is got rid of to corresponding Jing Quan by the moving-coil of a series of rotations subsequently to the center of moving baffling dish, collects the back at last and flowed out by liquid outlet in cavity by guiding tube.
First three documents is individual layer (axially) filler, under certain treating capacity, wants to improve the transmission capacity (or separating effect) of equipment, can only finish by the diameter that adds large equipment.Device diameters strengthens the deficiency of bringing: when the inside and outside footpath of (1) revolving bed rotor differs too big, the cross-sectional area that is liquid communication differs too big, two kinds of situations appear easily: the one, and rotor inner radius liquid easily is full of entire cross section, cause gas flow not smooth, simultaneously, the liquid foam entrainment phenomenon is serious; The 2nd, near rotor outer rim place, liquid can not be with the filler complete wetting, and gas is taken a shortcut easily, causes the revolving bed mass-transfer efficiency to reduce; (2) rotor moment of torsion in rotatablely moving increases, and the load of axle and bearing strengthens, and in the equipment long-time running, dynamic balancing is difficult to keep, and simultaneously, axle and bearing are also fragile.
Chinese patent CN1686591 has done improvement on the basis to above-mentioned document, can improve transmission capacity by strengthening the equipment axial height.But because the space between the deflection plate is bigger on the baffling dish, be full of whole passages in the gas flow process, and liquid can only wetting baffling dish deflection plate the inboard, that is to say that the gas that liquid and adverse current are come can only carry out mass-and heat-transfer in the inboard of deflection plate, the outside of deflection plate and interstitial channels then almost can not be utilized, and greatly reduce the reinforcement transmission effect of revolving bed.Simultaneously, because gas-liquid is counter-current flow in the whole process, in the center of bed, gas flow rate is bigger, is prone to liquid foam entrainment and liquid and floods a phenomenon.
Summary of the invention
The utility model is low in order to solve the device separates ability that exists in the prior art, and the gas-liquid communicative effect is poor, is prone to liquid foam entrainment and liquid and floods problems such as a phenomenon and provide a kind of highly effective spin-rectifying bed.
The utility model is realized by following technical scheme, a kind of highly effective spin-rectifying bed, comprise that top has gas vent, the bottom has gas feed, the housing of liquid outlet, be provided with in the housing one deck at least by rotating shaft drive rotary packed bed, rotary packed bed last disc that has passage and interior rotary drum by lower support disc that has through hole and ring-type, outer drum constitutes, wherein the last disc of ring-type and in, outer drum and lower support disc constitute ring cavity, filler is housed in the ring cavity, on the housing on the rotary packed bed top of each layer, feed pipe is housed, the liquid distribution trough of feed pipe is positioned at the ring cavity inboard, be provided with seal pot in the housing, seal pot is positioned at lower support disc below, is provided with downspout on the housing above the seal pot.
Gas medium enters from the below air inlet of housing, the raw material liq medium can enter into rotary packed bed ring cavity inboard from the feed pipe at revolving bed middle part, rotary packed bedly under the drive of axle, rotate, liquid inboard from packing ring under action of centrifugal force enters, come out from the outside, be thrown on the housing sidewall then, simultaneously gas from the lower support disc of rotary packed bed bottom surface by and move upward and pass filler, cross-flow in filler contacts gas with liquid, liquid drops to after running into housing wall on the seal pot, collects water conservancy diversion by downspout then again and enters down on one deck rotary packed bed and repeat this process.
The utility model relates to gas and liquid with overall counter current contacting, the form of cross-flow is come strengthening transfer process and is improved the efficient of transmitting through the method for multilayer rotation filler (3-6 layer) respectively in each rotation filler, its outstanding characteristics are through multistage filler, prolonged the time of contact and the area of gas, liquid, the process that makes is strengthened and efficient is improved.
The utility model has following advantage: 1. when the utility model is used for distillation operation: (1) can add the filler number of plies according to the separation requirement of mixture; (2) can add raw material or draw product at different packing layer places according to design; (3) phegma also can be introduced from the second layer, and topmost packing layer reduces liquid foam entrainment as the demist layer, to improve the device separates ability.2. the utility model can be used for gas cleaning: (1) can draw rich solution at the diverse location of filler and regenerate according to purifying requirement; (2) can add semi lean solution at the diverse location of filler; (3) absorption liquid (or lean solution) can add from second layer filler, rotary packed bed the superiors filler as the demist layer, is reduced Wu Droplets and carries secretly, to improve detergent power.3. gas, the liquid liquid form in rotary packed bed is individual layer cross-flow, whole adverse current, the cross-sectional area of gas flow is constant, gas, liquid flow are smooth and easy, so both guaranteed the separating power of rotary packed bed rectifying, what solved again that rotary packed bed adverse current rectifying rotor inner radius is prone to floods bed and liquid foam entrainment phenomenon.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the A-A profile of Fig. 1
Fig. 3 is a upper support disc structure schematic diagram
Fig. 4 is the B partial enlarged drawing of Fig. 1
Fig. 5 always schemes for the utility model and corollary apparatus structure thereof
Among the figure: 1-downspout, 2-seal pot, 3-feed pipe, the 4-outer drum, 5-filler, the last disc of 6-, rotary drum in the 7-, 8-housing, 9-rotating shaft, the 10-gas vent, 11-gas feed, 12-lower support disc, the 13-liquid outlet, 14-product storage tank, 15-reboiler, the 16-complete condenser, 17-segregator, 18-raw material storage tank
The specific embodiment
As schematically shown in Figure 1, a kind of highly effective spin-rectifying bed, comprise that top has gas vent 10, the bottom has gas feed 11, the housing 8 of liquid outlet 13, be provided with in the housing 8 one deck at least by rotating shaft 9 drive rotary packed bed, rotary packed bed last disc 6 that has passage and interior rotary drum 7 by lower support disc 12 that has through hole and ring-type, outer drum 4 constitutes, wherein the last disc 6 of ring-type and in, outer drum and lower support disc 12 constitute ring cavity, filler 5 is housed in the ring cavity, on the housing 8 on the rotary packed bed top of each layer, feed pipe 3 is housed, feed pipe 3 liquid distribution troughs are positioned at the ring cavity inboard, be provided with seal pot 2 in the housing 8, seal pot 2 is positioned at lower support disc 12 belows, is provided with downspout 1 on the housing above the seal pot 2.
As schematically shown in Figure 4, and seal pot 2 is 70 °-85 ° with housing 8 madial wall angles, (1) make filler and drain dish bottom that certain distance be arranged, after maintenance throws away from filler, several times the collision reaction of filler and rotary packed bed shell on (stream) seal pot below filler of final whereabouts, and has certain memory space in the groove that seal pot and rotary packed bed shell are formed, avoid liquid owing to mobile not smooth causing flooded bed, cause operation normally not move.(2) from making rotary packed bed integrally-built design angle, rationally adjust the size of θ, can satisfy the requirement of seal pot liquid capacity, can reduce equipment investment expense and operation troubles again;
The width of seal pot 2 is:
L＝(R
1-r
1+m/2)/cosθ
In the formula: the width of L-seal pot 2, mm
R
1-rotary packed bed outer radius, mm
r
1-rotor outer radius, mm
The m-filler supports disc outer ring width, mm
The vertical range that seal pot 2 inward flanges and its support disc 12 up and down is h=5mm.Gas is when down one deck filler is to the last layer filler in rotary packed bed, have certain pressure, this distance both guaranteed that rotor and seal pot did not rub, and can avoid gas to take a shortcut again fully and liquid flow overflows to down one deck filler from drain dish inward flange when not smooth.
The application of the utility model in rectifying as shown in Figure 5.Comprise highly effective spin-rectifying bed, segregator 17, complete condenser 16, raw material storage tank 18, reboiler 15, product storage tank 14, have in the housing 6 rotary packed bed, adjacent two rotary packed bed drain pipes and feed pipe are communicated with, and are connected with raw material storage tank 18 on the coupling part of the rotary packed bed discharge nozzle of the feed pipe of the several the 3rd rotary packed bed vicinity down and the 4th layer, the gas feed of housing below is connected reboiler 15 with liquid outlet, the gas vent of housing top connects segregator 17 and complete condenser 16, and segregator 17 and complete condenser are connected with product storage tank 14 16 times, and segregator 17 also is connected with charging aperture on the superiors rotary packed bed.
Raw material enters rotary packed bedly after spinner flowmeter metering under the effect of pump from the 3rd layer of rotary packed bed material inlet, be sprayed at the filler inboard through liquid distribution trough.In filler, raw material is subjected to the effect of centrifugal force, filler frictional force and drag force to form liquid film, brin and drop, and throw away laterally by the filler inboard, after the liquid that leaves filler is collected by seal pot, enter lower floor's liquid distribution trough and following one deck filler through downspout, through behind which floor filler, liquid flows out rotary packed bed at last from rotary packed bed liquid outlet, enter reboiler.Liquid in the reboiler 15 is partly drawn, and part produces steam through heating, and steam enters rotary packed bed bottom from gas feed, under pressure, passes through the filler of each layer rotation successively from rotary packed bed lower end.In filler, steam contacts with the liquid cross-flow and carries out mass transfer, heat transfer, and gas-liquid reaches balance fast, makes the concentration of the volatile components in the gas phase increasing, and the concentration of volatile components is more and more littler in the liquid, reaches the purpose that material liquid separates.Steam enters segregator 17 and complete condenser 16 after flowing out from gas vent successively, is the separating power that improves equipment, the partially liq in the segregator 17 as phegma from the phegma import turn back to rotary packed bed, all the other are drawn as product.
Claims (3)
1, a kind of highly effective spin-rectifying bed, comprise that top has gas vent (10), the bottom has gas feed (11), the housing (8) of liquid outlet (13), be provided with in the housing (8) one deck at least by rotating shaft (9) drive rotary packed bed, it is characterized in that: rotary packed bed last disc (6) that has passage and interior rotary drum (7) by lower support disc (12) that has through hole and ring-type, outer drum (4) constitutes, wherein the last disc (6) of ring-type and in, outer drum and lower support disc (12) constitute ring cavity, filler (5) is housed in the ring cavity, on the housing (8) on each rotary packed bed top, be installed with feed pipe (3), feed pipe (3) mouth of pipe is positioned at the ring cavity inboard, be provided with seal pot (2) in the housing (8), seal pot (2) is positioned at lower support disc (12) below, is provided with downspout (1) on the housing of seal pot (2) top.
2, according to claim 1 highly effective spin-rectifying bed, it is characterized in that: seal pot (2) is 70 °-85 ° with housing (8) madial wall angle.
3, according to claim 1 highly effective spin-rectifying bed, it is characterized in that: rotary packed bed is 3 to 6 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200763012U CN201179356Y (en) | 2008-02-01 | 2008-02-01 | High-efficiency rotating distillation bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200763012U CN201179356Y (en) | 2008-02-01 | 2008-02-01 | High-efficiency rotating distillation bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201179356Y true CN201179356Y (en) | 2009-01-14 |
Family
ID=40248858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200763012U Expired - Fee Related CN201179356Y (en) | 2008-02-01 | 2008-02-01 | High-efficiency rotating distillation bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201179356Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306258B (en) * | 2008-02-01 | 2010-06-16 | 中北大学 | Highly effective spin-rectifying bed |
| CN103521160A (en) * | 2013-09-29 | 2014-01-22 | 北京化工大学 | Multifunctional and multipurpose multistage rotary packed bed reactor device and method for performing multiphase and multicomponent reaction by using device |
-
2008
- 2008-02-01 CN CNU2008200763012U patent/CN201179356Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306258B (en) * | 2008-02-01 | 2010-06-16 | 中北大学 | Highly effective spin-rectifying bed |
| CN103521160A (en) * | 2013-09-29 | 2014-01-22 | 北京化工大学 | Multifunctional and multipurpose multistage rotary packed bed reactor device and method for performing multiphase and multicomponent reaction by using device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20110201 |