CN117160249A - Ultrathin reverse osmosis composite membrane and preparation device thereof - Google Patents
Ultrathin reverse osmosis composite membrane and preparation device thereof Download PDFInfo
- Publication number
- CN117160249A CN117160249A CN202311254448.1A CN202311254448A CN117160249A CN 117160249 A CN117160249 A CN 117160249A CN 202311254448 A CN202311254448 A CN 202311254448A CN 117160249 A CN117160249 A CN 117160249A
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- CN
- China
- Prior art keywords
- unreeling
- reverse osmosis
- composite membrane
- osmosis composite
- ultrathin
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- 239000012528 membrane Substances 0.000 title claims abstract description 103
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 50
- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- 238000004804 winding Methods 0.000 claims description 30
- 230000001954 sterilising effect Effects 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 16
- 239000004745 nonwoven fabric Substances 0.000 claims description 13
- 229920000728 polyester Polymers 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- 238000011033 desalting Methods 0.000 claims description 9
- 230000000670 limiting effect Effects 0.000 claims description 8
- 229920002492 poly(sulfone) Polymers 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 241000196171 Hydrodictyon reticulatum Species 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 18
- 230000004907 flux Effects 0.000 abstract description 9
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 51
- 238000004659 sterilization and disinfection Methods 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- UWCPYKQBIPYOLX-UHFFFAOYSA-N benzene-1,3,5-tricarbonyl chloride Chemical compound ClC(=O)C1=CC(C(Cl)=O)=CC(C(Cl)=O)=C1 UWCPYKQBIPYOLX-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229940018564 m-phenylenediamine Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- IVXQBCUBSIPQGU-UHFFFAOYSA-N piperazine-1-carboxamide Chemical compound NC(=O)N1CCNCC1 IVXQBCUBSIPQGU-UHFFFAOYSA-N 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The application discloses an ultrathin reverse osmosis composite membrane and a preparation device thereof, and relates to the technical field of ultrathin reverse osmosis composite membrane preparation. In the technical scheme, the ultrathin reverse osmosis composite membrane and the preparation device thereof provided by the application have a certain antibacterial effect, and reduce the pollution of organisms on the surface of the membrane, so that the water flux of the membrane is in a stable state, and the fluctuation of the water flux is reduced.
Description
Technical Field
The application relates to the technical field of preparation of ultrathin reverse osmosis composite membranes, in particular to an ultrathin reverse osmosis composite membrane and a preparation device thereof.
Background
The reverse osmosis composite membrane is a common water treatment material, and the principle is that reverse osmosis is also called reverse osmosis, and is a membrane separation operation for separating solvent from solution by taking pressure difference as driving force. It is known that the water flux per unit time of a reverse osmosis composite membrane at a fixed water pressure determines the water treatment efficiency, and the membrane pore diameter and the membrane thickness are important influencing factors for determining the water flux per unit time. Therefore, the water flux in unit time can be improved through the reduction of the film thickness, the basic structure of the reverse osmosis composite film is a non-woven fabric layer, a base film layer and a functional layer, the functional layer is coated on the surface of the base film, and the reverse osmosis film is obtained by coating the film on the surface of the base film.
Publication No.: CN104307380a is a reverse osmosis composite membrane, and discloses a reverse osmosis composite membrane which comprises a compact layer and a porous supporting layer, wherein the compact layer is prepared from piperazine amide, m-phenylenediamine and trimesoyl chloride; the porous supporting layer is made of polypropylene and is paved with a layer of polyester non-woven fabric. The polyester non-woven fabric is prepared from dibasic acid and dihydric alcohol. The compact layer covers the porous supporting layer and is bonded with the porous supporting layer through high pressure.
In the prior art, pollution occurs after the treatment system is operated for a period of time, wherein the main sources of pollution are biological pollution, inorganic pollution and organic pollution. The pollution can lead to the working stability of the composite membrane to be insufficient, the problems of water flux and desalination rate fluctuation occur, and after membrane pollution occurs, the membrane pollution is removed by cleaning, so that the service life of the membrane is inevitably reduced.
Disclosure of Invention
The application aims to provide an ultrathin reverse osmosis composite membrane and a preparation device thereof, so as to solve the defects in the prior art.
In order to achieve the above object, the present application provides the following technical solutions: the utility model provides an ultra-thin reverse osmosis composite membrane, includes center liquid column and filter module, filter module winds and rolls up on center liquid column, filter module is including sterilizing mesh layer, membrane module, sterilizing mesh layer with alternate lamination sets up between the membrane module, the membrane module is including producing water net and diaphragm, the diaphragm cladding is in the water net outside of producing, the surface of diaphragm is provided with a plurality of irregular pore-shaped structure, pore-shaped structure's total area occupies 30% -50% of diaphragm surface total area.
Preferably, the membrane comprises a polyester non-woven fabric, a polysulfone supporting layer and an ultrathin desalting layer, and the polyester non-woven fabric, the polysulfone supporting layer and the ultrathin desalting layer are sequentially laminated.
An ultrathin reverse osmosis composite membrane preparation device, comprising:
the device comprises a rack and a mounting rack rotatably connected to the rack, wherein at least one pair of unreeling rollers are fixedly mounted on the mounting rack, and the unreeling rollers are used for mounting reels;
a driving section;
the driving part is used for driving the unreeling roller to switch between the unreeling station and the discharging station;
and the positioning piece clamps the winding drum at the unreeling station, so that the winding drum is centered by taking the unreeling roller as a center, and the positioning piece loosens the winding drum at the unloading station.
Preferably, the driving part comprises a driving motor, and an output shaft of the driving motor is fixedly connected with the mounting frame.
Preferably, the locating part includes four track framves, bar hole and transmission structure, the bar Kong Kaishe is in on the unreeling roller, the one end of track frame is provided with the gripping head, four track frame symmetric distribution is in the unreeling roller, gripping head sliding connection is in the bar hole, transmission structure is used for the drive the track frame carries out the displacement have first stroke and second stroke in the displacement stroke of track frame, in first stroke, the gripping head stretches out towards the outside of unreeling roller, in the second stroke, the gripping head carries out the displacement towards the central point of unreeling roller.
Preferably, the transmission structure comprises a screw rod, a first disc, a second disc, a conical block and a positioning rod, wherein the screw rod is rotationally connected to the unreeling roller, the conical block is in threaded connection with the screw rod, the inclined surface of the conical block is abutted to the track frame, the positioning rod is arranged in the unreeling roller, the positioning rod penetrates through the conical block in a sliding manner, the first disc is arranged on the frame, the second disc is arranged on the screw rod, and the first disc is meshed with the second disc.
Preferably, the device further comprises a tension member, the tension member comprises a positioning sleeve, a positioning column and a tension spring, the positioning sleeve and the positioning column are respectively installed on the pair of track frames, the positioning sleeve and the positioning column are inserted, and two ends of the tension spring are respectively arranged on the pair of track members.
Preferably, the device comprises a coaxial device, wherein the coaxial device comprises a jacking block and a roller, the jacking block is in sliding connection with the unreeling roller, the roller is rotationally connected to the jacking block, and one end of the jacking block extends to the outside of the unreeling roller in the second stroke.
Preferably, the automatic feeding device comprises a synchronous structure, wherein the synchronous structure comprises a connecting rod, a spring and a limiting block, two ends of the connecting rod are respectively inserted into two rail frames, two ends of the spring are respectively abutted against two rail frames, the limiting block is installed in the unreeling roller, and the limiting block is in sliding connection with the side face of the rail frames.
Preferably, the screw rod comprises a constant pressure structure, the constant pressure structure comprises a screw sleeve, an outer ring, an inner ring, an elastic piece and an embedded piece, wherein the screw sleeve is in threaded connection with the outside of the screw rod, the screw sleeve is rotationally connected with the inside of the conical block, the outer ring is arranged on the conical block, one end of the elastic piece is arranged on the outer ring, the other end of the elastic piece is arranged on the inner ring, the embedded piece is arranged on the outside of the screw sleeve, a groove is formed in the inner ring, and one end of the embedded piece is embedded in the groove.
In the technical scheme, the ultrathin reverse osmosis composite membrane and the preparation device thereof provided by the application have a certain antibacterial effect, and reduce the pollution of organisms on the surface of the membrane, so that the water flux of the membrane is in a stable state, and the fluctuation of the water flux is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic view of a frame and a wind-up roll of an ultrathin reverse osmosis composite membrane and a preparation device thereof;
FIG. 2 is a sectional view of a wind-up roll of an ultrathin reverse osmosis composite membrane and a preparation device thereof;
FIG. 3 is a schematic diagram of the structure of a wind-up roll of the ultrathin reverse osmosis composite membrane and the preparation device thereof in a discharging station;
FIG. 4 is a schematic view of an ultrathin reverse osmosis composite membrane, a track frame for a preparation device thereof and a tension member structure according to the application;
FIG. 5 is an enlarged schematic view of the ultrathin reverse osmosis composite membrane and the preparation device thereof shown in FIG. 2A;
FIG. 6 is an enlarged schematic view of the ultrathin reverse osmosis composite membrane and the preparation device thereof shown in FIG. 3;
FIG. 7 is an enlarged schematic view of the ultrathin reverse osmosis composite membrane and the preparation device thereof shown in FIG. 3;
FIG. 8 is a cross-sectional view of a constant pressure structure of an ultra-thin reverse osmosis composite membrane and a preparation device thereof according to the present application;
FIG. 9 is a schematic diagram of the structure of an ultrathin reverse osmosis composite membrane and a preparation device thereof in the same axis;
FIG. 10 is a schematic view of an ultrathin reverse osmosis composite membrane and a preparation device thereof according to the application.
FIG. 11 is a schematic view of a filter assembly of an ultrathin reverse osmosis composite membrane and a preparation device thereof according to the present application;
FIG. 12 is a schematic view of the membrane module structure of an ultrathin reverse osmosis composite membrane and a preparation device thereof according to the application;
FIG. 13 is a schematic diagram of the membrane structure of an ultrathin reverse osmosis composite membrane and a preparation device thereof.
Reference numerals illustrate: 1. a frame; 2. a mounting frame; 21. a driving motor; 3. an unreeling roller; 4. a positioning piece; 41. a track frame; 42. a clamping head; 421. a bar-shaped hole; 43. a positioning sleeve; 44. positioning columns; 45. a tension spring; 46. a ball; 47. a connecting rod; 48. a spring; 49. a limiting block; 5. a coax; 51. a jacking block; 52. a roller; 53. pressing strips; 54. a chute; 55. a rebound member; 6. a transmission structure; 61. a screw rod; 611. a first disc; 612. a second disc; 62. a conical block; 63. a positioning rod; 64. a thread sleeve; 65. an outer ring; 66. an insert; 67. an inner ring; 671. a groove; 68. an elastic member; 7. a central liquid column; 8. a filter assembly; 81. a sterilization grid layer; 811. coating an adhesive layer; 82. a membrane module; 821. a membrane; 822. a water producing grid; 8211. a polyester nonwoven fabric; 8212. a polyester nonwoven fabric; 8213. an ultrathin desalting layer.
Detailed Description
In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1-13, an ultrathin reverse osmosis composite membrane provided by the embodiment of the application comprises a central liquid column 7 and a filter component 8, wherein the filter component 8 is wound on the central liquid column 7, the filter component comprises a sterilization grid layer 81 and a membrane component 82, the sterilization grid layer 81 and the membrane component 82 are alternately stacked, the membrane component 82 comprises a water-producing grid 822 and a membrane 821, the membrane 821 is coated outside the water-producing grid 822, a plurality of irregular hole-shaped structures are arranged on the surface of the membrane 821, and the total area of the hole-shaped structures occupies 30% -50% of the total surface area of the membrane 821.
The membrane 821 comprises a polyester non-woven fabric 8211, a polysulfone supporting layer 8212 and an ultrathin desalting layer 8213, wherein the polyester non-woven fabric 8211, the polysulfone supporting layer 8212 and the ultrathin desalting layer 8213 are sequentially laminated.
In the embodiment of the application, an ultrathin reverse osmosis composite membrane comprises a central liquid column 7 and a filter component 8, wherein the filter component 8 is wound on the central liquid column 7, the filter component comprises a sterilization grid layer 81 and a membrane component 82, through holes are formed in the circumferential wall of the central liquid column 7 and used for water circulation, the filter component 8 is wound on the central liquid column 7, the sterilization grid layer 81 and the membrane component 82 are alternately laminated, the sterilization grid layer 81 and the membrane component 82 are clamped between the sterilization grid layers 81 through the membrane component 82, a water inlet channel is formed between the membrane components 82 by utilizing the sterilization grid layer 81, the sterilization grid layer 81 is made of nano-silver powder with the concentration of 8-15%, the nano-titanium dioxide powder with the concentration of 8-15% is used for bacteriostasis and sterilization, so that when a processing system is in operation, biological pollution on the surface of the membrane component 82 can be reduced, the water flux stability is improved, the membrane component 82 is separated by the sterilization grid layer 81, adhesion between the two groups of the membrane components 82 is avoided, the smooth gap between the membrane components 82 is ensured, the membrane components 82 and the total surface area of the membrane layer 822 is not covered by the membrane layer 822, and the total membrane layer 81 is formed by the membrane layer 81, and the total area of the membrane layer 81 is formed by the membrane layer 81 and the membrane layer is formed by the membrane layer 81, and the membrane layer is formed by the surface of the membrane layer 81 and the membrane layer is formed by the membrane layer 50% and the membrane layer 81. The membrane 821 comprises a polyester non-woven fabric 8211, a polysulfone supporting layer 8212 and an ultrathin desalting layer 8213, wherein the polyester non-woven fabric 8211, the polysulfone supporting layer 8212 and the ultrathin desalting layer 8213 are sequentially laminated. The porous structures are semipermeable membranes, and water molecules continuously flow from the concentrated solution to the dilute solution through the porous structures on the semipermeable membranes under the external pressure.
Referring to fig. 1-13, in the preparation of the ultrathin reverse osmosis composite membrane, the wound sterilization grid layer 81 needs to be coated with a coating layer 811 along the edge thereof by using a coating device, when unwinding, the wound base material needs to be ensured to be consistent with the center of the unwinding roller 3 when unwinding in the preparation of the reverse osmosis membrane, thus the position of the winding drum needs to be centered, the center of the substrate is ensured to coincide with the center of the coating roller as much as possible after stretching, the contact point of the sterilization grid layer 81 and the coating device is always in a fixed position, the current unwinding roller 3 is in a pneumatic structure, the fixing of the winding drum is realized by ejecting clamping jaws after pressurization, and the size from the end part of the winding drum to the end part of the unwinding roller 3 needs to be manually measured and the winding drum is adjusted when the winding drum is replaced each time, so as to ensure the centering of the winding drum. Therefore, based on an ultrathin reverse osmosis composite membrane, an ultrathin reverse osmosis composite membrane preparation device is provided to optimize the unreeling accuracy of the sterilization grid layer 81, and the ultrathin reverse osmosis composite membrane preparation device comprises: the device comprises a frame 1 and a mounting frame 2 rotatably connected to the frame 1, wherein at least one pair of unreeling rollers 3 are fixedly arranged on the mounting frame 2, and the unreeling rollers 3 are used for mounting reels; the base material is wound on the winding drum, and the driving part is used for driving the base material to rotate; the unreeling device comprises an unreeling station and a discharging station, wherein a driving part is used for driving the unreeling roller 3 to switch between the unreeling station and the discharging station; and the positioning piece 4 clamps the winding drum at the unreeling station, so that the winding drum is centered by taking the unreeling roller 3 as a center, and the positioning piece 4 releases the winding drum at the unreeling station.
The driving part comprises a driving motor 21, the mounting frame 2 can be driven to rotate through the rotation of the driving motor 21, the unreeling station and the discharging station are driven to switch between the unreeling station and the discharging station by the driving part, the unreeling roller 3 is switched between the unreeling station and the discharging station through the pair of unreeling rollers 3 arranged on the mounting frame 2 in the overturning and resetting processes of the mounting frame 2, so that unreeling operation can be carried out when the unreeling roller 3 is positioned at the unreeling station, a winding drum can be conveniently detached from the unreeling roller 3 when the unreeling roller 3 is positioned at the discharging station, and meanwhile, the unreeling is continuously carried out when the coating equipment is ensured to continuously run, and the downtime of the equipment is reduced;
and the positioning piece 4 clamps the winding drum at the unreeling station, so that the winding drum is centered by taking the unreeling roller 3 as a center, and the positioning piece 4 releases the winding drum at the unreeling station. When the unreeling roller 3 moves towards the unreeling station, the reel can be clamped through the positioning piece 4, so that the reel is positioned at the center of the unreeling roller 3, and therefore, when a new reel is replaced, the reel can be centrally positioned through the positioning piece 4, the base material on the reel is always positioned at the same position when being pulled to a coating machine, and the consistency of production conditions is improved; the positioning piece 4 comprises four track frames 41, a strip-shaped hole 421 and a transmission structure 6, the strip-shaped hole 421 is formed in the unreeling roller 3, one end of the track frame 41 is provided with a clamping head 42, the four track frames 41 are symmetrically distributed in the unreeling roller 3, the clamping head 42 is slidably connected in the strip-shaped hole 421, the transmission structure 6 is used for driving the track frames 41 to displace, a first stroke and a second stroke are provided in the displacement stroke of the track frames 41, the clamping head 42 extends towards the outside of the unreeling roller 3 in the first stroke, the clamping head 42 moves towards the central point of the unreeling roller 3 in the second stroke, after the reel is replaced each time, the clamping head 42 is overturned through the mounting frame 2, the transmission structure 6 can be driven to work, the transmission structure 6 can drive the track frames 41 to displace, the track frame 41 is driven by the transmission structure 6 to move in a first stroke, in the first stroke, the track frame 41 can displace along the radial direction of the unreeling roller 3, the clamping head 42 can extend to the outside of the unreeling roller 3, after the track frame 41 reaches the radial limit position of the unreeling roller 3, the track frame 41 can carry out a second stroke under the continuous driving of the transmission structure 6, the second stroke can drive the track frame 41 to displace along the axial direction of the unreeling roller 3, the track frames 41 distributed at the two ends of the unreeling roller 3 are gradually close to each other, centering clamping of a winding drum is realized, and the positioning piece 4 automatically centers the winding drum, so that the winding drum replaced each time is in the same position, measurement and positioning of the winding drum are not needed manually, and time required for replacing the winding drum is greatly saved.
The drive part comprises a drive motor 21, and an output shaft of the drive motor 21 is fixedly connected with the mounting frame 2. The middle part at mounting bracket 2 is provided with the dabber, rotates between this dabber and the frame 1 to be connected, like this, driving motor 21 installs in frame 1, and the dabber fixed connection who sets up on driving motor 21's the output shaft and the mounting bracket 2, like this through driving motor 21's rotation, can realize mounting bracket 2's rotation, like this when mounting bracket 2 rotates, unreel roller 3 can switch between unreeling station and the station of unloading. The driving motor 21 is a gear motor, and can provide a larger output torque and a sufficiently slow rotation speed, thus ensuring a reduction in the turnover speed of the mounting frame 2.
The setting element 4 includes four track framves 41, bar hole 421 and transmission structure 6, bar hole 421 is offered on unreeling roller 3, the one end of track frame 41 is provided with clamping head 42, four track frame 41 symmetric distributions is in unreeling roller 3, clamping head 42 sliding connection is in bar hole 421, transmission structure 6 is used for driving track frame 41 to carry out the displacement, have first stroke and second stroke in the displacement stroke of track frame 41, at first stroke, clamping head 42 stretches out towards unreeling roller 3's outside, at the second stroke, clamping head 42 carries out the displacement towards unreeling roller 3's central point. Four track frames 41 all set up in the inside of unreeling roller 3, the mutual symmetry sets up between four track frames 41, be located the same high a pair of track frames 41 and can carry out the displacement in step, guarantee like this, when carrying out location centre gripping to the reel, can centre gripping or loosen simultaneously, in order to guarantee when carrying out the centre gripping to the reel, can realize the location placed in middle to the reel, the reel cover is in unreeling roller 3 outside, and be provided with a bulge block in unreeling roller 3's outside, the bulge block is not marked in the drawing, the setting of bulge block can be used for restricting the initial position of reel when placing, be in the effective centre gripping stroke of track frame 41 when guaranteeing that the reel is placed, in first stroke in progress, track frame 41 radially carries out the displacement along unreeling roller 3, the centre gripping head 42 stretches out to unreeling roller outside, centre gripping head 42 is in the both ends of reel like this, when carrying out the second stroke, be located unreeling roller 3 both ends track frames 41 are close to each other, centre gripping head 42 will extrude on the both ends face of reel like this, realize the location placed in middle to the reel.
The transmission structure 6 comprises a screw rod 61, a first disc member 611, a second disc member 612, a conical block 62 and a positioning rod 63, wherein the screw rod 61 is rotationally connected to the unreeling roller 3, the conical block 62 is in threaded connection with the screw rod 61, the inclined surface of the conical block 62 is abutted against the track frame 41, the positioning rod 63 is installed in the unreeling roller 3, the positioning rod 63 slides to penetrate through the conical block 62, the first disc member 611 is installed on the frame 1, the second disc member 612 is installed on the screw rod 61, and the first disc member 611 is meshed with the second disc member 612. The lead screw 61 rotates and connects on unreeling roller 3, lead screw 61 can only rotate, but can not carry out the displacement of other modes for unreeling roller 3, toper piece 62 and lead screw 61 threaded connection, the inclined plane of toper piece 62 is contradicted on track frame 41, locating lever 63 installs in unreeling roller 3, locating lever 63 slides and runs through toper piece 62, restrict the angle of toper piece 62 through locating lever 63 for toper piece 62 only can carry out the displacement along unreeling roller 3's axial, first dish 611 is installed on frame 1, second dish 612 is installed on lead screw 61, mesh between first dish 611 and the second dish 612. When the driving part drives the mounting frame 2 to overturn, the second disc 612 is reacted by the first disc 611, so that the second disc 612 rotates, when the driving part drives the mounting frame 2 to switch between the unreeling station and the unloading station, the second disc 612 is driven to rotate, the second disc 612 rotates, the screw rod 61 can be driven to rotate, and when the screw rod 61 rotates, the conical block 62 can be driven to move along the axial direction of the unreeling roller 3, the conical block 62 drives the track frame 41 to displace, and according to different rotation directions of the screw rod 61, the clamping or the releasing of the winding drum can be realized. The device is driven passively, the use of an extra circuit driving structure is reduced, the clamping and the loosening of the winding drum are synchronously realized by switching the unwinding station and the unloading station, and when attention is required, the positioning piece 4 on one unwinding roller 3 is clamped and the positioning piece 4 on the other unwinding roller 3 is synchronously loosened when the unwinding station and the unloading station are switched. This ensures that the unreeling roller 3 is moved to the unreeling station and the discharging station in the corresponding clamping and unclamping states.
The tension device further comprises a tension piece, the tension piece comprises a positioning sleeve 43, a positioning column 44 and a tension spring 45, the positioning sleeve 43 and the positioning column 44 are respectively arranged on the pair of track frames 41, the positioning sleeve 43 and the positioning column 44 are connected in an inserting mode, and two ends of the tension spring 45 are respectively arranged on the pair of track frames 41. Referring to fig. 4, 5 and 6, the positioning post 44 and the positioning sleeve 43 are respectively mounted on the track frames 41 located on the same side, so that the track frames 41 can synchronously displace along the axial direction of the unreeling roller 3 through the limiting action of the positioning sleeve 43 and the positioning post 44, and through the arrangement of the tension springs 45, two ends of the tension springs 45 are respectively and fixedly connected to the pair of track frames 41 located on the same side, so that tension can be applied to the track frames 41, and the pair of track frames 41 can be ensured to be extruded on the conical blocks 62, so that the track frames 41 can be smoothly ensured to be still extruded on the conical blocks 62 when the conical blocks 62 retract towards the end parts of the unreeling roller 3.
The device comprises a coaxializer 5, wherein the coaxializer 5 comprises a jacking block 51 and a roller 52, the jacking block 51 is in sliding connection with the unreeling roller 3, the roller 52 is rotationally connected to the jacking block 51, and one end of the jacking block 51 extends to the outside of the unreeling roller 3 in a second stroke. In the second stroke is gone on, track frame 41 can carry out the displacement towards the middle part of unreeling roller 3, track frame 41 can extrude jacking piece 51 like this, jacking piece 51 receives the extrusion back, can carry out the displacement along the radial of unreeling roller 3, and jacking piece 51 can stretch out unreeling roller 3, through the removal of jacking piece 51, gyro wheel 52 laminating smoothly at the inner wall of reel, can be in same central line between reel and the unreeling roller 3 like this, guarantee to utilize, the power when track frame 41 carries out the second displacement, passive drive reel is shifted, realize at the same axle center of reel and unreeling roller 3, and through the setting of gyro wheel 52, guarantee that the reel can smoothly rotate, avoid the extrusion force too big and lead to the reel unable unreeling operation of carrying out. The both sides of jacking piece 51 are provided with layering 53, have seted up spout 54 in unreeling roller 3, layering 53 sliding connection is provided with rebound piece 55 in spout 54 in the spout 54, extrudees layering 53 through rebound piece 55 for layering 53 drives jacking piece 51 and moves towards unreeling roller 3's center, guarantees like this that after track frame 41 and jacking piece 51 separation, jacking piece 51 can retract unreeling roller 3 under rebound piece 55's extrusion, in order to guarantee that the reel can follow unreeling roller 3 smoothly and take out. The ball 46 is in rolling connection with the inside of the clamping head 42, when the clamping head 42 clamps the winding drum, the ball 46 is in rolling connection with the end part of the winding drum, so that the ball 46 is matched with the roller 52, the winding drum and the unreeling roller 3 can rotate, and the unreeling smoothness is ensured.
Including synchronous structure, synchronous structure includes connecting rod 47, spring 48 and stopper 49, peg graft respectively at the both ends of connecting rod 47 in two track framves 41, through the setting of connecting rod 47, can fix the track frame 41 that is close to unreeling roller 3 both ends at same height, the both ends of spring 48 are contradicted respectively on two track framves 41, can exert a thrust to track frame 41 like this, make a pair of track frame 41 have the trend that moves towards unreeling roller 3 both ends respectively, when the toper piece 62 is close to each other, can extrude track frame 41 and be close to each other, track frame 41 can extrude spring 48 like this, make spring 48 shrink, track frame 41 is close to smoothly, in order to realize the centre gripping fixed to the reel, the stopper 49 is installed in the inside of unreeling roller 3, stopper 49 and the side sliding connection of track frame 41 have guaranteed the displacement of track frame 41 like this, make track frame 41 can only carry out the displacement along radial and axial of unreeling roller 3, guarantee stability.
In yet another embodiment of the present application, the present application includes a constant pressure structure including a screw sleeve 64, an outer ring 65, an inner ring 67, an elastic member 68, and an insert 66, wherein the screw sleeve 64 is screwed on the outside of the screw rod 61, the screw sleeve 64 is rotatably connected to the inside of the tapered block 62, the outer ring 65 is mounted on the tapered block 62, one end of the elastic member 68 is mounted on the outer ring 65, the other end of the elastic member 68 is mounted on the inner ring 67, the insert 66 is mounted on the outside of the screw sleeve 64, a groove 671 is provided on the inner ring 67, and one end of the insert 66 is embedded in the groove 671.
Referring to fig. 8, a screw sleeve 64 is screwed to the outside of a screw rod 61, the screw sleeve 64 is screwed to the screw rod 61, the screw sleeve 64 is rotatably connected to the inside of a tapered block 62, an outer ring 65 is mounted on the tapered block 62, one end of an elastic member 68 is mounted on the outer ring 65, the other end of the elastic member 68 is mounted on an inner ring 67, the outer ring 65 and the screw rod 61 are positioned on the same center line, an insert 66 is mounted to the outside of the screw sleeve 64, a groove 671 is formed in the inner ring 67, one end of the insert 66 is embedded in the groove 671, one end of the insert 66 is connected to the inner ring 67 by the arrangement of the groove 671, and when the screw rod 61 rotates, the screw rod 61 is relatively stationary by the connection of the insert 66 and the inner ring 67, so that the screw rod 61 is rotated by the screw thread force, the threaded sleeve 64 and the conical block 62 are displaced in the same step, when clamping reels of different axial heights, the clamping point of the rail frame 41 is correspondingly changed, some reels of higher axial heights are only required to be moved for a certain distance in the second stroke of the rail frame 41, when clamping reels of shorter axial heights, the rail frame 41 is required to be moved farther, the distance moved by the rail frame 41 is related to the number of turns of the screw 61, then the number of turns of each screw 61 is consistent due to the fixation of the positions of the unreeling station and the unreeling station, so that the adaptation of reels of different axial heights is a problem, so that in the embodiment, by arranging the constant pressure structure, by adding a constant pressure structure between the screw 61 and the conical block 62, when the clamping force of the track frame 41 is greater than a fixed value, the reaction force borne by the embedded part 66 is greater than the force required by deformation of the inner ring 67, the outer ring 65 of the inner ring 67 is deformed, the embedded part 66 is separated from the groove 671, at the moment, the embedded part 66 and the threaded sleeve 64 rotate along with the screw rod 61, so that the screw rod 61 idles, the conical block 62 cannot continue to displace along the axial direction of the screw rod 61 due to the idles, and therefore, reels with different axial heights can be clamped at unreeling positions.
While certain exemplary embodiments of the present application have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the application, which is defined by the appended claims.
Claims (10)
1. The utility model provides an ultra-thin reverse osmosis composite membrane, its characterized in that includes center liquid column (7) and filter module (8), filter module (8) are around rolling up on center liquid column (7), filter module is including sterilizing mesh layer (81), membrane module (82), sterilizing mesh layer (81) with alternate range upon range of setting between membrane module (82), membrane module (82) are including producing water net (822) and diaphragm (821), diaphragm (821) cladding is in the outside of producing water net (822), the surface of diaphragm (821) is provided with a plurality of irregular pore-shaped structure, pore-shaped structure's total area occupies diaphragm (821) surface total area's 30% -50%.
2. The ultrathin reverse osmosis composite membrane according to claim 1, wherein the membrane (821) comprises a polyester non-woven fabric (8211), a polysulfone support layer (8212) and an ultrathin desalting layer (8213), and the polyester non-woven fabric (8211), the polysulfone support layer (8212) and the ultrathin desalting layer (8213) are sequentially laminated.
3. An ultrathin reverse osmosis composite membrane preparation device based on the ultrathin reverse osmosis composite membrane according to any one of claims 1-2, characterized by comprising:
the device comprises a frame (1) and a mounting frame (2) rotatably connected to the frame (1), wherein at least one pair of unreeling rollers (3) are fixedly arranged on the mounting frame (2), and the unreeling rollers (3) are used for mounting reels;
a driving section;
the driving part is used for driving the unreeling roller (3) to switch between the unreeling station and the discharging station;
the positioning piece (4) is used for clamping the winding drum at the unreeling station, so that the winding drum is centered by taking the unreeling roller (3) as a center, and the positioning piece (4) is used for releasing the winding drum at the unreeling station.
4. A device for preparing an ultra-thin reverse osmosis composite membrane according to claim 3, characterized in that the driving part comprises a driving motor (21), and an output shaft of the driving motor (21) is fixedly connected with the mounting frame (2).
5. An ultrathin reverse osmosis composite membrane preparation device according to claim 3, characterized in that the positioning piece (4) comprises four track frames (41), a strip-shaped hole (421) and a transmission structure (6), the strip-shaped hole (421) is formed in the unreeling roller (3), one end of each track frame (41) is provided with a clamping head (42), the four track frames (41) are symmetrically distributed in the unreeling roller (3), the clamping heads (42) are slidably connected in the strip-shaped hole (421), the transmission structure (6) is used for driving the track frames (41) to displace, a first stroke and a second stroke are provided in the displacement stroke of the track frames (41), the clamping heads (42) extend towards the outer part of the unreeling roller (3) in the first stroke, and the clamping heads (42) displace towards the central point of the unreeling roller (3) in the second stroke.
6. The ultrathin reverse osmosis composite membrane preparation device according to claim 5, wherein the transmission structure (6) comprises a screw rod (61), a first disc (611), a second disc (612), a conical block (62) and a positioning rod (63), the screw rod (61) is rotatably connected to the unreeling roller (3), the conical block (62) is in threaded connection with the screw rod (61), the inclined surface of the conical block (62) is abutted against the track frame (41), the positioning rod (63) is installed in the unreeling roller (3), the positioning rod (63) penetrates through the conical block (62) in a sliding manner, the first disc (611) is installed on the frame (1), the second disc (612) is installed on the screw rod (61), and the first disc (611) is meshed with the second disc (612).
7. The ultrathin reverse osmosis composite membrane preparation device according to claim 5, further comprising a tension member, wherein the tension member comprises a positioning sleeve (43), a positioning column (44) and a tension spring (45), the positioning sleeve (43) and the positioning column (44) are respectively arranged on the pair of rail frames (41), the positioning sleeve (43) and the positioning column (44) are connected in an inserting mode, and two ends of the tension spring (45) are respectively arranged on the pair of rail members (41).
8. The ultrathin reverse osmosis composite membrane preparation device according to claim 5, comprising a coaxializer (5), wherein the coaxializer (5) comprises a jacking block (51) and a roller (52), the jacking block (51) is slidably inserted on the unreeling roller (3), the roller (52) is rotatably connected on the jacking block (51), and one end of the jacking block (51) extends to the outside of the unreeling roller (3) in the second stroke.
9. The ultrathin reverse osmosis composite membrane preparation device according to claim 5, comprising a synchronous structure, wherein the synchronous structure comprises a connecting rod (47), springs (48) and limiting blocks (49), two ends of the connecting rod (47) are respectively inserted into two track frames (41), two ends of each spring (48) are respectively abutted against the two track frames (41), the limiting blocks (49) are installed inside the unreeling roller (3), and the limiting blocks (49) are in sliding connection with the side surfaces of the track frames (41).
10. The ultrathin reverse osmosis composite membrane preparation device according to claim 6, comprising a constant pressure structure, wherein the constant pressure structure comprises a threaded sleeve (64), an outer ring (65), an inner ring (67), an elastic piece (68) and an embedded piece (66), the threaded sleeve (64) is in threaded connection with the outside of a screw rod (61), the threaded sleeve (64) is rotationally connected with the inside of a conical block (62), the outer ring (65) is installed on the conical block (62), one end of the elastic piece (68) is installed on the outer ring (65), the other end of the elastic piece (68) is installed on the inner ring (67), the embedded piece (66) is installed on the outside of the threaded sleeve (64), a groove (671) is formed in the inner ring (67), and one end of the embedded piece (66) is embedded in the groove (671).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311254448.1A CN117160249A (en) | 2023-09-27 | 2023-09-27 | Ultrathin reverse osmosis composite membrane and preparation device thereof |
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| CN202311254448.1A CN117160249A (en) | 2023-09-27 | 2023-09-27 | Ultrathin reverse osmosis composite membrane and preparation device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117945209A (en) * | 2024-03-27 | 2024-04-30 | 江苏泷膜科技有限公司 | High-efficient winding mechanism is used to reverse osmosis membrane |
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2023
- 2023-09-27 CN CN202311254448.1A patent/CN117160249A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117945209A (en) * | 2024-03-27 | 2024-04-30 | 江苏泷膜科技有限公司 | High-efficient winding mechanism is used to reverse osmosis membrane |
| CN117945209B (en) * | 2024-03-27 | 2024-06-11 | 江苏泷膜科技有限公司 | High-efficient winding mechanism is used to reverse osmosis membrane |
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