CN110270226A - A kind of tubular membrane device component - Google Patents
A kind of tubular membrane device component Download PDFInfo
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- CN110270226A CN110270226A CN201910718893.6A CN201910718893A CN110270226A CN 110270226 A CN110270226 A CN 110270226A CN 201910718893 A CN201910718893 A CN 201910718893A CN 110270226 A CN110270226 A CN 110270226A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
- B01D61/362—Pervaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of tubular membrane device components, include: inlet, cylinder, ring flange, pressing plate, floral disc, penetrating fluid outlet, pull rod, membrane tube, card slot, center pillar, partition, liquid outlet, channel, end socket, the space that channel is divided by cylinder, partition, center pillar and floral disc, membrane tube is mounted in each channel in membrane module cylinder, it is feed side on the outside of membrane tube, it is penetrating fluid side on the inside of membrane tube, partition is installs parallel with membrane tube, the pull rod parallel with membrane tube is also equipped in the inside in each channel, there is screw thread in pull rod outer surface.Tubular membrane component of the invention had not only retained the stalling characteristic of UF membrane " cross-flow filtration ", but also effectively improved flow regime of the raw material in each channel, improves membrane flux and enhances the integrated level of membrane module equipment；The difficulty for reducing the maintenance of membrane module installation maintenance, avoids membrane tube from being damaged by partition.
Description
Technical field
The invention belongs to technical field of membrane separation, and in particular to one kind is suitable for infiltration evaporation and gas isolates and purifies and waits films
The tubular membrane device component of separation process.
Background technique
Infiltration evaporation membrane separation technique is a kind of emerging separating and purifying technology, is applicable to organic matter and is separated from water, has
Machine object-organic-compound system separation, wherein industrialized production is successfully realized in part the most extensively and for organics dehydration research
Using.Its separation principle be using substance film two sides difference in chemical potential be driving force realize mass transfer, using film in material not
Selectivity is realized with the difference of component composition compatibility and resistance to mass tranfer.
Infiltration vaporization membrane module is exactly using this principle come work, and the pore-size of membrane tube is between organic solvent molecule
Between kinetic diameter and hydrone kinetic diameter, high temperature and pressure mixed gas that organic solvent and water are constituted is from membrane tube appearance
Surface current is out-of-date, since there are high vacuum, existing pressure difference generates motive force and makes kinetic diameter inside and outside membrane tube inside membrane tube
Hydrone less than membrane tube pore-size enters inside membrane tube, and kinetic diameter organic solvent larger is then trapped within
On the outside of membrane tube, thus hydrone and organic solvent molecule are efficiently separated.
And traditional membrane module seriously affects separative efficiency since membrane component permeation flux is not high, leads to film needed for film device
Pipe quantity increases, and equipment shape overall dimensions become larger, and piping connection is more, and welding assembly quantity is also more, ultimately causes equipment throwing
Provide at high cost, place space requirement is big, is unfavorable for the application of film device.It traces it to its cause and is that the mixed steam of high temperature and pressure
Flowing velocity of the body in the membrane module fast residence time shortens, also just very short with film surface time of contact, unit time unit plane
Long-pending membrane flux is small, and required membrane area increases therewith.
Under normal circumstances, it may be considered that increase turbulent extent of the mixed gas in membrane module to increase gas and film surface
Contact achieve the purpose that promoted unit time membrane flux.First kind solution is utilized in putamina and is added perpendicular to membrane tube
The restricted baffle in direction can weaken above-mentioned problem to a certain extent.But new problem is brought simultaneously, if increased
Restricted baffle quantity it is insufficient, effect is not obvious, there are the problem of cannot solve substantially；If increased choked flow every
If plate quantity is too many, the difficulty of processing and installation can be very big, it is desirable that membrane tube sequentially passes through these partitions, pair on each partition
Answering hole just must be aligned on the same line completely namely the concentricity machining accuracy and installation requirement in multiple holes are just very high.
Meet the design of such labyrinth and also results in that the membrane tube quantity installed in putamina is relatively limited, and unit volume film device has
Membrane area is few, and equipment over all Integration degree is not high, if partition is excessive at the same time, distinctive " cross-flow filtration " mould of UF membrane
Formula is converted into " dead-end filtration " mode, stifled to the concentration polarization for reducing film surface and the dirt for preventing fenestra not to be beneficial to.The
Two class solutions are to install longitudinal baffle additional along membrane tube direction inside membrane module column casing, keep raw material past in membrane module column casing
Fold back reflux is dynamic, extends raw material residence time in membrane module column casing, overcomes the installation in first kind solution and adds
The problem of in terms of work, remains intrinsic " cross-flow filtration " characteristic of UF membrane.But to turbulent extent of the raw material in column casing without
Change, in addition also increase new problem, multiple longitudinal baffles being parallel to each other of installation are to be set to column along membrane tube direction
In cylinder, the membrane tube distributed number of each partitioning portion is seriously uneven, and closer to the negative of raw material feed liquor front end separation water removal
Lotus is heavier, and existing distribution mode cannot be guaranteed that the local membrane tube quantity of load weight is more, causes the membrane tube separative efficiency of load weight
Sharply decline is easy dirty stifled, and membrane tube cleaning and replacement frequency are accelerated, and eventually leads to the decline of production cycle efficiency, and use cost increases
Add.
Summary of the invention
It is an object of that present invention to provide a kind of tubular membrane device component, realizes that the flux of per membrane area is promoted, mention simultaneously
The integrated level of high membrane module reduces equipment investment cost and occupied area, and is easily installed maintenance.
The present invention mainly passes through change structure design and realizes that membrane tube distributed number is more rational, increases pull rod and improves raw material
Turbulent extent, the tubular membrane device component include shell, membrane tube, partition and center pillar, and the center pillar is located at space in shell
Center, the partition divide space in shell to several pieces, along center pillar side between every adjacent two partition in the circumferential uniformly installation of center pillar
To several membrane tubes are equipped with, first formed using every adjacent two pieces of partitions as the split tunnel on boundary, along center pillar circumferential direction is logical
Road to the last one channel, adjacent two channels head and the tail communicate, and the inlet being arranged on first channel and shell communicates, last
The liquid port that goes out being arranged on a channel and shell communicates, and the penetrating fluid being arranged in the membrane tube and shell of each split tunnel goes out
Mouth communicates.
Further, the shell is cylindrical shape, is made of the end socket of cylindrical shell ontology and shell both ends.
Further, the center pillar be cylinder, along axis of a cylinder to offer with partition installation edge matching card slot, the shell
It is provided with card slot corresponding with partition on internal wall, partition is mounted between center pillar and inner walls by card slot, where partition
Plane is the radial direction of shell, and space in shell is divided into several pieces.
Further, the enclosure body both ends be provided with the matched floral disc of housing section shape, set on the floral disc
It is equipped with and the matched card slot in the end face of partition, along center pillar direction from first piece of partition to the last block partition, an end face left side for partition
It is mounted on two floral discs by card slot to right septum.It is mounted on floral disc that is, every piece of partition only has one end, if a upper partition is installed
On left floral disc, next partition is then mounted on right floral disc, ensure it is adjacent come two split tunnels between be connection.
Further, the partition of the last one interchannel in raw material flows into first channel and raw material outflow, both ends
It is installed on floral disc, and seals, be that two channels separate completely.
Further, it is parallel to membrane tube in the split tunnel, several pull rods, the pull rod and membrane tube interval point is installed
Cloth.
Further, the pull rod and membrane tube both ends are installed on floral disc.The membrane tube, pull rod are solid each parallel to partition
Dingan County's dress.
Further, the pull rod surface is provided with screw thread.
Further, enclosure body both ends are provided with pressing plate, setting and pull rod and the matched peace of membrane tube pipe on the floral disc
Hole is filled, the pull rod and membrane tube both ends are fixed on floral disc by mounting hole, and the pressing plate is bonded and compresses with the floral disc back side altogether
With steady brace and membrane tube.Preferably, the O-ring of an evagination is respectively arranged in membrane tube end, and membrane tube passes through floral disc, passes through evagination
O-ring blocks, while pressing plate is pressed on the back side (another side for not facing space in shell) of floral disc.More there are choosing, the floral disc back side
It is provided with in the matched groove of O-ring, makes smooth pressing plate that can be fitted tightly over floral disc back.
Further, the shell is elliptic cross-section or multi-panel tee section, the corresponding installation of partition, and satisfaction can will be in shell
Space is divided into several pieces.
Further, the partition is 3-8 block, and partition number is equal with the card slot number on center pillar.
Further, the end socket is connect by flange with housing body.
Further, the inlet and liquid outlet are arranged on shell, and the penetrating fluid outlet is arranged on end socket.
Further, the membrane tube pools same pipeline by pipeline connection close to one end that penetrating fluid exports, then with
Penetrating fluid outlet on end socket.The penetrating fluid outlet is connected with infiltration liquid storage tank again.
The membrane separating method of present invention offer tubular membrane device component, which comprises the following steps:
Membrane module feeding temperature is 80~150 DEG C, and inlet amount is 0.5~180L/h, and operating pressure is 50~600kPa, warp
After infiltration evaporation UF membrane, organic solvent is purified to purity >=99.9wt%.
When work, raw material is entered by the inlet, is successively turned back in each channel, while being divided by membrane tube
From, the liquid outlet outflow installed from channel described in the last one, by the vacuum equipment on storage tank, under vacuum
Vapor penetrates membrane tube, converges to inside membrane tube, cooling down is naturally past under the action of gravity and vacuum at liquid water quickly
The water of lower end outflow, all membrane tube outflows converges to end socket position, then is flowed into infiltration liquid storage tank through pipeline.The membrane module is main
For membrane separating process such as external-compression type tubular membranes, it is particularly suitable for infiltration evaporation and gas isolates and purifies equal membrane separating process.
Compared with prior art, the present invention has following beneficial effect:
1. membrane module of the present invention, partition is parallel to membrane tube installation, reduces the high-precision requirement of processing, also avoids
The risk that membrane tube perforation may be scratched, and be transversely mounted partition and squeeze membrane tube of damaging because of the disturbance of quick flow bring,
Convenient for the installing and dismounting of membrane tube.
2. membrane module of the present invention, had not only retained the stalling characteristic of UF membrane " cross-flow filtration ", but also effectively improved original
Expect the flow regime in each channel, improves the membrane tube area of unit volume membrane module, while improving membrane flux, enhance
The integrated level of membrane module equipment reduces equipment investment cost and occupied area, and is easily installed maintenance.
3. membrane module of the present invention, pull rod surface is whole thread shape, when raw material flows through pull rod surface, due to table
The influence of face screw thread can occur the change of flow direction along the steam flow in membrane tube direction and generate the disturbance in each indefinite direction, increase
Strong turbulent extent of the raw material on membrane tube surface, is substantially reduced membrane tube surface concentration polarization phenomenon, equally improves unit film surface
Long-pending flux.
4. tubular membrane component of the present invention, can be according to the water removal loading conditions that UF membrane design result is shown certainly
On the membrane tube quantity as needed for the quantity in adjustment channel and each channel, corresponding adjustment column casing inner wall and the center pillar being arranged among it
Card slot direction and position.
Detailed description of the invention
Fig. 1 is tubular membrane component overall structure front schematic view of the present invention；
Fig. 2 is tubular membrane component cross-sectional view of the present invention；
Fig. 3 is tubular membrane component cross-sectional view of the present invention；
Fig. 4 is that tubular membrane component of the present invention fills the diagrammatic cross-sectional view after membrane tube.
Fig. 5 is the floral disc schematic diagram of tubular membrane component of the present invention；
Fig. 6 is the pressing plate schematic diagram of tubular membrane component of the present invention.
In figure, 1- inlet, 2- column casing (shell), 3A, 3B, 3C, 3D- ring flange, 4A, 4B- pressing plate, 5A, 5B- floral disc,
6- penetrating fluid outlet, 7- pull rod, 8- membrane tube, 9- card slot, 10- center pillar, 11- partition, 12- liquid outlet, 81,82,83,84,85,
The channel 86-.
Specific embodiment
Below by specific embodiment, invention is further described in detail.But those skilled in the art will manage
Solution, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.Institute according to the literature in the art
The technology or conditions of description are carried out according to product description.
Embodiment 1
Tubular membrane device component described in the present embodiment is as shown in Figure 1, include shell 2, membrane tube 8, six pieces of partitions 11 and center pillars
10.The shell is columnar column casing, is made of the end socket of cylindrical shell ontology and shell both ends, the end socket passes through method
Blue 3A, 3B, 3C, 3D and housing body connect.The center pillar is located on the central axes of shell, and the partition is circumferentially uniform in center pillar
Installation, divides space in shell to several pieces, is equipped with several membrane tubes 8 along center pillar direction per between adjacent two partition, formed with
It is the split tunnel on boundary per adjacent two pieces of partitions, it is logical along first channel to the last one channel of center pillar circumferential direction, adjacent two
Road head and the tail communicate, and the inlet being arranged on first channel and shell communicates, and what is be arranged on the last one channel and shell goes out liquid
Body mouth 12 communicates, and the penetrating fluid outlet 6 being arranged in the membrane tube and shell of each split tunnel communicates.The center pillar is circle
Column is provided with card corresponding with partition in the inner walls along axis of a cylinder to the card slot 9 for installing edge matching with partition is offered
Slot, partition are mounted between center pillar and inner walls by card slot, and plane where partition is the radial direction of shell, will be empty in shell
Between be divided into several pieces.The inlet and liquid outlet are arranged on shell, and the penetrating fluid outlet is arranged on end socket.
The enclosure body both ends be provided with housing section shape matched floral disc 5A, 5B, be provided on the floral disc
With the matched card slot in end face of partition, along center pillar direction from first piece of partition to the last block partition, the end face of partition is between left and right
It is mounted on two floral discs every ground by card slot.It is mounted on floral disc that is, every piece of partition only has one end, if a upper partition is mounted on a left side
On floral disc, next partition is then mounted on right floral disc, ensure it is adjacent come two split tunnels between be connection.What raw material flowed into
The partition of the last one interchannel of first channel and raw material outflow, both ends are installed on floral disc, and are sealed, and are two logical
Road separates completely.It being parallel to membrane tube in the split tunnel, several pull rods 7 are installed, the pull rod surface is provided with screw thread,
The pull rod is spaced apart with membrane tube.The pull rod and membrane tube both ends are installed on floral disc, and are parallel to partition fixed installation.
Enclosure body both ends are provided with pressing plate 4A, 4B, setting and pull rod and the matched mounting hole of membrane tube pipe, the pull rod on the floral disc
It is fixed on floral disc with membrane tube both ends by mounting hole, the pressing plate is bonded and compresses common steady brace and film with the floral disc back side
Pipe.The O-ring of an evagination is respectively arranged in membrane tube end, and membrane tube passes through floral disc, blocked by the O-ring of evagination, while pressing plate pressure
Tightly at the back side of floral disc (another side for not facing space in shell).The floral disc back side is provided with in the matched groove of O-ring, makes to put down
Whole pressing plate can be fitted tightly over floral disc back.One end sealing that all membrane tubes are exported far from penetrating fluid, the other end pass through pipeline
Connection pools same pipeline, then with the penetrating fluid outlet on end socket.Penetrating fluid outlet again with infiltration liquid storage tank phase
Even.
The above-mentioned membrane module course of work:
Column casing 2 is cylindrical shape, is separately connected by ring flange 3 and two end sockets, one is equipped on one of end socket
Penetrating fluid outlet 6, partition 11 shares six pieces, and column casing 2 is divided into six channels by partition 11, passes through column casing 2 and center pillar 10 and flower
Card slot sealing installation on disk 5A-5B is fixed, and the column casing outer wall top in first channel 81 is equipped with inlet 1, from inlet 1
The raw material for flowing into membrane module flows to the tail portion in channel 81 from the head in channel 81, and the head of the tail portion and channel 82 in channel 81 passes through
The gap of partition 11 and floral disc 5A are interconnected, and then raw material flows to the tail portion in channel 82, channel 82 from the head in channel 82 again
Tail portion and the head in channel 83 be interconnected by the gap of partition 11 and floral disc 5B, then raw material is again from the head in channel 83
The tail portion in channel 83 is flowed to, the tail portion in channel 83 and the head in channel 84 are interconnected by the gap of partition 11 and floral disc 5A,
Then raw material flows to the tail portion in channel 84 from the head in channel 84 again, and the tail portion in channel 84 and the head in channel 85 pass through partition 11
It is interconnected with the gap of floral disc 5B, then raw material flows to the tail portion in channel 85, the tail portion in channel 85 from the head in channel 85 again
It is interconnected with the head in channel 86 by the gap of partition 11 and floral disc 5A, then raw material is again logical from the head in channel 86 flow direction
The tail portion in road 86, this one end of partition 11 between 81 head of 86 tail portion of channel and channel are inserted into the card slot of floral disc 5B and are sealed,
Completely separated channel 86 and channel 81, the liquid outlet that the material after making separation can only be installed from the column casing outer wall top in channel 86
12 outflow membrane modules.
Divide obtained each channel in partition 11, can be calculated and be required according to separation, loads required amount of membrane tube 8 and draw
Bar 7, membrane tube 8 and pull rod 7, which are respectively mounted, to be fixed on floral disc 5A, 5B.Pressing plate 4B and floral disc 5B and sealing element cooperate 8 head end shape of membrane tube
At sealing, pressing plate 4A and floral disc 5A and sealing element cooperation 8 tail end of membrane tube form sealing structure, and above-mentioned head and the tail both ends sealing structure will
The inside and outside carry out isolating seal of periosteum 8.What is flowed between 8 outside of membrane tube namely each membrane tube 8 is feed side, 8 inside of membrane tube and envelope
Penetrating fluid outlet 6 on head is connected to form penetrating fluid side.Film mouth of the pressing plate 4B by all membrane tubes close to the side pressing plate 4B is completely close
Closure, and pressing plate 4A is closed closure membrane tube tube head position, all nozzle openings are gathered together, and are penetrated in membrane tube pipe
Moisture be gathered together from end socket penetrating fluid outlet 6 outflow membrane modules.
The membrane module is suitable for the membrane separation process processes such as tubular membrane, and it is gentle to be especially suitable for infiltration evaporation, Steam soak
The membrane separating process such as body separation.
Membrane tube 8 exports 6 sides through external vacuum, inside and outside membrane tube 8 in penetrating fluid using after infiltration evaporation membrane tube
Under conditions of the pressure difference of formation is as motive force, penetrating fluid component selectively passed through the UF membrane layer of 8 outer surface of membrane tube and
8 inside of membrane tube is entered, the penetrating fluid component that condenser is condensed into liquid condition is entered under the action of vacuum, is finally flowed into
Permeate liquid storage tank.
In the technical solution provided by the present invention, by the way that partition 11 is arranged in column casing 2, so that raw material is past in membrane module
Fold back returns, and increases the time of contact of itself and membrane tube surface, and penetrating fluid component is separated more thoroughly.By in the 81-86 of channel
The pull rod that surface is covered with screw thread is set, flow pattern of the raw material in membrane module is improved, enhances turbulent flow of the raw material in membrane module
Intensity, has been sufficiently reserved the characteristic of film surface " cross-flow filtration ", and raw material high speed is washed away the surface of membrane tube 8, greatly destroyed dense
Difference polarization bring the decline of membrane flux problem, to reduce the quantity demand of membrane area, the dirt for also mitigating membrane tube 8 blocks up and reduces film
Component cleaning and regeneration frequency and the service life for extending membrane tube 8.It is the side for being parallel to membrane tube 8 by the way that partition 11 is arranged in column casing 2
It is fixed to installation, effectively avoids damaging between membrane tube 8 and partition 11, reduced to the high-precision requirement in processing link, it is also simple
Change the disassembly difficulty in installation maintenance work, greatly reduces the production cost of membrane module.
Embodiment 2
In the embodiment, partition quantity is set as the arbitrary number of the integer of 2-12, center pillar 10 and column casing 2 and floral disc 5A-
Card slot on 5B adjusts therewith, and raw material flows into membrane module, flow at high speed of turning back back and forth in membrane module, from liquid out from inlet 1
Mouth 12 flows out membrane modules, and penetrating fluid component collects to enter by penetrating fluid outlet 6 permeates liquid storage tank, and result of implementation equally reaches pre-
Phase.
Embodiment 3
In the embodiment, difference from Example 1: the cross section of column casing 2 is polygon, and the number of polygon can be with
The arbitrary integer between 3-10, actual quantity is designed according to UF membrane early period to be calculated to determine, the side length of polygon according to
The quantity of the membrane tube 8 needed in each channel determines or essentially equal or be not completely equivalent that partition quantity is arranged with polygon
The quantity on side is consistent, and the card slot on center pillar 10 and column casing 2 and floral disc 5A-5B adjusts therewith, and raw material equally flows into film from inlet 1
Component, flow at high speed of turning back back and forth in membrane module flow out membrane module from liquid outlet 12, and penetrating fluid component is exported by penetrating fluid
6 collect into infiltration liquid storage tank, and result of implementation similarly reaches expected.
Embodiment 4
In the embodiment, difference from Example 1: the cross section of column casing 2 is ellipse, the cross section of center pillar 10
It is set as ellipse or polygon, is counted if the quantity that center pillar 10 is set as its practical side of polygon is designed according to UF membrane early period
It calculates to determine, the setting of partition quantity also is designed to calculate according to UF membrane early period and be determined, center pillar 10 and column casing 2 and floral disc 5A-5B
On card slot adjust therewith, raw material equally from inlet 1 flow into membrane module, flow at high speed of turning back back and forth in membrane module, from go out
Liquid mouth 12 flows out membrane module, and penetrating fluid component is collected by penetrating fluid outlet 6 enters infiltration liquid storage tank, and result of implementation similarly reaches
To expection.
Following embodiment is the application examples of membrane module of the present invention.Membrane module of the present invention is through by the use of time
After rectifying column, the separating treatment of waste liquid is carried out jointly in conjunction with rectifying column, rectifying column is used using conventional rectification tower connection type
Conventional connection type.
The separation of 5 acetonitrile-water system of embodiment
Illustrate a kind of operating method of tubular membrane device component by taking the acetonitrile waste liquid of polypeptide industry as an example.It is set into tubular membrane
Material 82-83% containing acetonitrile in slave component, infiltrating and vaporizing membrane (area about 6.0m2), film permeate side is vaporized thoroughly controls vacuum
10kPa is spent, penetrating fluid is discharged into penetrating fluid storage tank by the cooling of the condensed in two stages of water at low temperature (7 DEG C) and chilled water (- 20 DEG C).It seeps
The charging of vaporization film is thoroughly controlled at 89.1 DEG C, feed pressure 0.23MPa, after the centrifugation of infiltrating and vaporizing membrane, thoroughly
The flow for crossing liquid is 13.33kg/h, and wherein the content of acetonitrile is less than 450ppm, and the device is discharged as waste water in this permeate；Through
The quality group for crossing acetonitrile in the material of infiltrating and vaporizing membrane becomes 99.9%, flow 62.84kg/h.The acetonitrile of high purity of acquisition steams
Vapour enters acetonitrile product slot, the acetonitrile rate of recovery >=98% after being condensed, being cooled down, acetonitrile after the recovery fully achieves reuse and wants
It asks.
The separation of embodiment 6THF- water
Illustrate a kind of operating method of tubular membrane device component by taking tetrahydrofuran (THF) waste liquid of certain pharmacy corporation as an example,
Contain 92.44%wt.THF into the material in tubular membrane device component, into infiltrating and vaporizing membrane (area about 3.0m2), it vaporizes thoroughly
Film permeate side controls vacuum degree 10kPa, and penetrating fluid is cooling by the condensed in two stages of water at low temperature (7 DEG C) and chilled water (- 20 DEG C)
It is discharged into penetrating fluid storage tank, the charging of infiltrating and vaporizing membrane is controlled at 96.7 DEG C, feed pressure 0.34MPa, through permeating vapour
After the centrifugation for changing film, the flow of permeate is 5.81kg/h, and wherein the content of THF is less than 450ppm, this permeate conduct
The device is discharged in waste water；Become 99.99% by the quality group of THF in the material of infiltrating and vaporizing membrane, flow 70.71kg/h.
The high-purity THF steam of acquisition enters product slot, recycled in its entirety rate >=98% of THF, THF after the recovery after being condensed, being cooled down
Fully achieve reuse requirement.
Claims (10)
1. a kind of tubular membrane device component, which is characterized in that structure includes shell, membrane tube, partition and center pillar, and the center pillar is located at
The center in space in shell, the partition divide space in shell to several pieces, per adjacent two partition in the circumferential uniformly installation of center pillar
Between along center pillar direction several membrane tubes are installed, formed using every adjacent two pieces of partitions as the split tunnel on boundary, along center pillar week
To first channel to the last one channel, adjacent two channel head and the tail communicate, the feed liquor being arranged on first channel and shell
Mouth communicates, and the liquid port that goes out being arranged on the last one channel and shell communicates, in the membrane tube and shell of each split tunnel
The penetrating fluid outlet of setting communicates.
2. tubular membrane device component according to claim 1, which is characterized in that the shell is cylindrical shape, by circular cylindrical shell
Body ontology and the end socket at shell both ends are constituted.
3. tubular membrane device component according to claim 2, which is characterized in that the center pillar is cylinder, along axis of a cylinder to opening up
There is the card slot with partition installation edge matching, is provided with card slot corresponding with partition in the inner walls, partition passes through card slot
It is mounted between center pillar and inner walls, space in shell is divided into several pieces.
4. tubular membrane device component according to claim 2, which is characterized in that the enclosure body both ends are provided with and shell
The matched floral disc of cross sectional shape, be provided on the floral disc with the matched card slot in the end face of partition, along center pillar direction from first piece
Partition to the last block partition, end face of partition or so compartment of terrain is mounted on two floral discs by card slot.
5. tubular membrane device component according to claim 4, which is characterized in that first channel and raw material flow that raw material flows into
The partition of the last one interchannel out, both ends are installed on floral disc, and are sealed.
6. tubular membrane device component according to claim 2, which is characterized in that be parallel to membrane tube installation in the split tunnel
There are several pull rods, the pull rod is spaced apart with membrane tube.
7. tubular membrane device component according to claim 6, which is characterized in that the pull rod and membrane tube both ends are installed in flower
On disk；The membrane tube, pull rod are fixedly mounted each parallel to partition, and further, the pull rod surface is provided with screw thread.
8. according to the tubular membrane device component of claim 7 or 8, which is characterized in that enclosure body both ends are provided with pressing plate, institute
State on floral disc setting and pull rod and the matched mounting hole of membrane tube pipe, the pull rod and membrane tube both ends are fixed on floral disc by mounting hole
On, the pressing plate is bonded and compresses common steady brace and membrane tube with the floral disc back side.
9. tubular membrane device component according to claim 2, which is characterized in that the shell is elliptic cross-section or polygon
Space in shell can be divided into several pieces by section, the corresponding installation of partition, satisfaction；The center pillar is elliptic cross-section or polygon
Space in shell can be divided into several pieces by tee section, the corresponding installation of partition, satisfaction.
10. based on the membrane separating method of tubular membrane device component described in any claim in claim 1-9, feature exists
In, comprising the following steps:
Membrane module feeding temperature is 80~150 DEG C, and inlet amount is 0.5~180L/h, and operating pressure is 50~600kPa, through permeating
After vaporizing UF membrane, organic solvent is purified to purity >=99.9wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910718893.6A CN110270226A (en) | 2019-08-05 | 2019-08-05 | A kind of tubular membrane device component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910718893.6A CN110270226A (en) | 2019-08-05 | 2019-08-05 | A kind of tubular membrane device component |
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| CN110270226A true CN110270226A (en) | 2019-09-24 |
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| CN201910718893.6A Pending CN110270226A (en) | 2019-08-05 | 2019-08-05 | A kind of tubular membrane device component |
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| CN (1) | CN110270226A (en) |
Cited By (2)
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Application publication date: 20190924 |