CN115888397B - Rolling reverse osmosis membrane assembly - Google Patents
Rolling reverse osmosis membrane assembly Download PDFInfo
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- CN115888397B CN115888397B CN202211509530.XA CN202211509530A CN115888397B CN 115888397 B CN115888397 B CN 115888397B CN 202211509530 A CN202211509530 A CN 202211509530A CN 115888397 B CN115888397 B CN 115888397B
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- reverse osmosis
- osmosis membrane
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- shell
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- 239000012528 membrane Substances 0.000 title claims abstract description 198
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 99
- 238000005096 rolling process Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 175
- 238000004140 cleaning Methods 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 33
- 239000011550 stock solution Substances 0.000 claims abstract description 24
- 239000008213 purified water Substances 0.000 claims abstract description 17
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 231100000719 pollutant Toxicity 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 28
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 8
- 239000006247 magnetic powder Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000011152 fibreglass Substances 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 5
- 239000011553 magnetic fluid Substances 0.000 description 13
- 244000005700 microbiome Species 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 5
- 230000001954 sterilising effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910017053 inorganic salt Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000009285 membrane fouling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000005406 washing Methods 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 invention relates to the technical field of membrane separation, in particular to a coiled reverse osmosis membrane assembly; comprises a membrane shell, a reverse osmosis membrane component and a water producing pipeline; the side wall of the membrane shell is provided with a through pipeline; the through pipeline is used for introducing stock solution to be filtered; the reverse osmosis membrane component is coaxially and fixedly arranged in the membrane shell; one end of the reverse osmosis membrane component is fixedly connected with the water production pipeline; the reverse osmosis membrane component is wound around the central shaft of the water producing pipeline; the reverse osmosis membrane component is used for filtering the stock solution into purified water; the reverse osmosis membrane assembly can be used for rapidly disassembling all parts in the reverse osmosis membrane assembly and cleaning pollutants in the reverse osmosis membrane assembly; the water producing pipeline is coaxially and fixedly arranged in the membrane shell; the water producing pipeline is used for conveying the filtered purified water to the water tank. The invention has the advantages that the cleaning of the filtering membrane is convenient by the membrane shell with the open-close structure; the detachable connection of the membrane and the water inlet grid is used for conveniently cleaning pollutants.
Description
Technical Field
The invention relates to the technical field of membrane separation, in particular to a coiled reverse osmosis membrane assembly.
Background
Filtering water, namely separating impurities in the water from the water, and mostly adopting a physical filtering method; but is limited by the aperture of the physical filtration interceptor, the traditional filter screen and the filtering device can only perform primary filtration on visible suspended matters; with the development of filter materials, the development of filter technology using micron-scale or even nano-scale filter membranes is rapid; wherein the reverse osmosis membrane is more outstanding in the working performance of filtering water, and utilizes the characteristic that water with high concentration flows to water with low concentration; the nanometer aperture of the membrane directly separates water molecules, so that pure water can be obtained only by inputting stock solution into the reverse osmosis membrane.
However, as the reverse osmosis membrane still adopts a physical filtration method, the conventional filtration means can also occur on the reverse osmosis membrane component; for example, a reverse osmosis membrane is often blocked by scale formed by accumulation of inorganic salts and other components, and for example, the reverse osmosis membrane is often blocked by blocked microorganisms in the water inlet grid; the water inlet efficiency and the filtering efficiency of the reverse osmosis membrane assembly are greatly reduced under all the conditions; the literature (energy engineering, analysis of reverse osmosis membrane fouling cause and coping strategy, authors: qin Ganghua, 2021, (05): pages 5-9) suggests that in the prior art, when reverse osmosis membrane is fouled by fouling, sampling analysis is required for pollutants; then, different countermeasures are needed to solve the blockage problem aiming at inorganic blockage and microorganism blockage; this is not a quick unified cleaning for the use of the device, and the cleaning work is inconvenient.
Common reverse osmosis membrane filtration components are generally of an integrated structure, and if a membrane for filtration is blocked by pollutants, a targeted cleaning work is usually required to be designed according to the types of the pollutants; the earlier-stage cleaning preparation work is complicated, so that the cleaning work is inconvenient; for example, a RO reverse osmosis membrane manufactured by Qian Ji (Shanghai) water treatment technology Co., ltd, the company website is http:// www.qianjing-sh.com/a/chancinzhongxin/peijianhaocai/26. Html, and the outer shell of the RO reverse osmosis membrane adopts a fixed glass fiber reinforced plastic shell to wrap the inner reverse osmosis membrane; if the membrane is oxidized by corrosive liquid, the whole reverse osmosis membrane filtering component can be replaced, so that the loss cost is high.
For this purpose, a roll-type reverse osmosis membrane module is proposed.
Disclosure of Invention
The invention aims to provide a coiled reverse osmosis membrane assembly, which is convenient for cleaning a filtration membrane by a membrane shell with an open-close structure; the detachable connection of the membrane and the water inlet grid is used for conveniently cleaning pollutants; the pollutants in the water inlet grid are wrapped and clamped out by utilizing the magnetic fluid injected into the liquid injection holes of the water inlet grid.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a coiled reverse osmosis membrane component comprises a membrane shell, a reverse osmosis membrane component and a water production pipeline;
the membrane shell is of a cylindrical structure; a cavity with a cylindrical structure is formed in the membrane shell; the length of the membrane shell is 350-500mm; the diameter of the membrane shell is 50-80mm; the side wall of the membrane shell is provided with a through pipeline; the through pipeline is used for introducing stock solution to be filtered;
the reverse osmosis membrane component is of a cylindrical structure and is coaxially and fixedly arranged in the accommodating cavity; one end of the reverse osmosis membrane component is fixedly connected with the water production pipeline; the reverse osmosis membrane component is wound around the central shaft of the water producing pipeline; the reverse osmosis membrane component is used for filtering the stock solution into purified water; the reverse osmosis membrane assembly can be used for rapidly disassembling all parts in the reverse osmosis membrane assembly and cleaning pollutants in the reverse osmosis membrane assembly;
the diameter of the water producing pipeline is 15-30mm; the water producing pipeline is coaxially and fixedly arranged in the accommodating cavity; a plurality of circular through holes are arrayed at the joint of the water production pipeline and the reverse osmosis membrane component along the central direction of the water production pipeline; the diameter of the circular through hole is 5-15mm; the water production pipeline is used for conveying purified water filtered by the reverse osmosis membrane assembly to the water tank through the circular through hole.
The membrane shell comprises a shell body, a flip cover and a sealing plate; the shell is of a semicircular ring structure; a lower support bar is arranged on one side of the shell; the lower support bar is provided with through holes along the length direction of the lower support bar; a first groove is symmetrically formed at the front end and the rear end of the inner wall of the shell; the flip cover is of a semicircular structure; an upper fixing strip is arranged on one side of the flip cover; two grooves are symmetrically formed in the front end and the rear end of the inner wall of the flip cover; the upper fixing strip is provided with through holes along the length direction of the upper fixing strip; the diameter of the flip cover is equal to the diameter of the shell; the upper fixing strip of the flip cover is fixedly connected with the lower supporting strip of the shell through a bolt; a sealing strip is arranged between the upper fixing strip and the lower supporting strip; the other side of the flip cover is rotationally connected with the shell through an opening hinge; the opening and closing pages are symmetrically arranged at the front end and the rear end of the shell; the opening and closing page is made of SUS304 stainless steel; the opening and closing page is detachably connected with the shell through bolts; the sealing plate is of a circular plate structure; a water outlet hole is formed in the middle of the sealing plate; the side wall of the sealing plate is fixedly connected with a sealing rubber ring; the sealing plates are symmetrically and fixedly arranged at the left end and the right end of the shell; the sealing rubber ring is fixedly connected with the shell and the flip through the first groove and the second groove respectively; the water producing pipeline is sleeved in the water outlet hole;
the membrane shell is made of glass fiber reinforced plastic.
The reverse osmosis membrane component comprises a water inlet grid, a membrane and a water outlet grid; the water inlet grid is of a net structure; the water inlet grid is used for circulating stock solution; the middle part of one side of the diaphragm is fixedly connected with one end of the water inlet grid through glue solution; the two ends of one side of the diaphragm are detachably and fixedly connected with the water inlet grid; four sides of the other side of the diaphragm are fixedly connected with the water outlet grid through glue solution; the membrane is used for separating purified water from the stock solution; the water outlet grid is of a net structure; the water outlet grid is used for conveying purified water into the water production pipeline.
The grid angle of the water inlet grid is 110-130 degrees.
Magnetic powder is uniformly arranged on four sides of the inner part of the diaphragm; the thickness of the membrane is 0.1-0.3mm.
The free end of the water inlet grid is fixedly connected with a magnetic stripe; the thickness of the water inlet grid is 0.4-0.6mm; the thickness of the magnetic stripe is 0.8-1.0mm; the magnetic stripe is made of ferrite.
The side wall of the magnetic stripe is provided with a chute; the thickness of the chute is 0.4-0.6mm; the magnetic stripe is in sliding connection with the free end of the water inlet grid through the sliding groove.
The connecting end between the water inlet grid and the middle part of the diaphragm is provided with a liquid injection hole along the direction of the central axis of the connecting end; the diameter of the liquid injection hole is 0.2-0.3mm; the liquid injection hole is used for injecting cleaning liquid; the cleaning liquid can adopt magnetic fluid.
The water inlet grid is made of SUS430 stainless iron.
Compared with the prior art, the invention has the beneficial effects that:
1. the membrane shell adopts an open-close type structure, and the tightness of the membrane shell when closed is kept by matching the sealing rubber rings on the sealing plates at the two ends with the grooves on the inner wall of the membrane shell and by the sealing strips arranged between the upper fixing strip and the lower supporting strip; the open-close type membrane shell can directly clean or replace an internal reverse osmosis membrane, so that the membrane shell can be reused, and meanwhile, the inner wall of the membrane shell can be cleaned.
2. The application adopts the separation type reverse osmosis membrane component, which can rapidly separate the membrane and the water inlet grid after the membrane shell is opened, and perform unified operation of descaling, sterilization and sterilization on the contact surface of the membrane and the water inlet grid; and the cleaning method is not required to be analyzed and designed according to different pollution forms, so that the cleaning efficiency of the reverse osmosis membrane component is improved.
3. The water inlet grid is provided with a liquid injection hole along the direction of the central axis of the water inlet grid at the connecting end of the water inlet grid and the middle part of the membrane; the magnetic fluid can be injected into the liquid injection hole, and the characteristic that the magnet at the free end of the water inlet grid adsorbs the magnetic fluid can be utilized to ensure that pollutants attached to the inside of the grid are wrapped and clamped through the movement of the magnetic fluid, which is generated by the magnetic adsorption.
Drawings
FIG. 1 is a schematic view of a closed state structure of the present invention;
FIG. 2 is a side cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of an open state structure of the present invention;
FIG. 4 is a schematic view of an open state structure of the present invention;
FIG. 5 is a schematic view showing the structure of the open state of the housing according to the present invention;
FIG. 6 is a schematic diagram of a flip cover structure of the present invention;
FIG. 7 is a schematic view of the reverse osmosis membrane module structure of the present invention;
FIG. 8 is a side cross-sectional view of FIG. 7;
fig. 9 is a side cross-sectional view of a reverse osmosis membrane module of the present invention in a straightened state;
fig. 10 is a schematic structural view of a sealing plate according to the present invention.
In the figure: 1. a membrane shell; 11. a cavity; 12. a through pipe; 13. a housing; 131. a lower support bar; 132. opening a hinge; 14. a flip cover; 141. a fixing strip is arranged on the upper part; 15. a sealing plate; 151. a water outlet hole; 152. sealing the rubber ring; 2. a reverse osmosis membrane module; 21. a water inlet grid; 211. a magnetic stripe; 212. a liquid injection hole; 22. a membrane; 23. a water outlet grid; 3. a water producing pipeline; 31. circular through holes.
Detailed Description
Referring to fig. 1 to 10, the present invention provides a rolled reverse osmosis membrane module 2, which has the following technical scheme:
first embodiment: this embodiment is suitable for filtration pressures of 60-98psi;
a coiled reverse osmosis membrane component 2 comprises a membrane shell 1, a reverse osmosis membrane component 2 and a water production pipeline 3;
the membrane shell 1 is of a cylindrical structure; a cylindrical cavity 11 is formed in the membrane shell 1; the length of the membrane shell 1 is 350-500mm; the diameter of the membrane shell 1 is 50-80mm; the side wall of the membrane shell 1 is provided with a through pipeline 12; the through pipe 12 is used for introducing the stock solution to be filtered;
the reverse osmosis membrane component 2 is of a cylindrical structure and is coaxially and fixedly arranged in the accommodating cavity 11; one end of the reverse osmosis membrane component 2 is fixedly connected with the water production pipeline 3; the reverse osmosis membrane component 2 is wound around the central axis of the water producing pipeline 3; the reverse osmosis membrane component 2 is used for filtering the stock solution into purified water; the reverse osmosis membrane assembly 2 can quickly detach all parts in the reverse osmosis membrane assembly 2 and clean pollutants in the reverse osmosis membrane assembly 2;
the reverse osmosis membrane utilizes the characteristic that high-concentration water flows to low-concentration water, and uses a filtering membrane with the pore diameter of 0.3-3 nanometers to separate microorganisms, inorganic salts, heavy metal ions and the like in the high-concentration water; when microorganisms in water are intercepted at one side of a filtering membrane, mass propagation is often carried out to cause one side of the filtering membrane to be blocked, so that the filtering efficiency of the reverse osmosis membrane is reduced; the inorganic salt and the like intercepted by the filtering membrane are easy to form scale on one side of the filtering membrane, and the reverse osmosis membrane is blocked, so that the filtering amount of the inorganic salt and the like is reduced; after long-time cleaning, the inorganic salt and other components are easy to oxidize the filtering membrane, so that the filtering membrane loses part of filtering performance; the components of the reverse osmosis membrane assembly 2 are disassembled, and sterilization and disinfection are carried out by spraying disinfectant and irradiating ultraviolet lamps; after the cleaning is finished, all the parts of the reverse osmosis membrane assembly 2 are connected;
the diameter of the water producing pipeline 3 is 15-30mm; the water producing pipeline 3 is coaxially and fixedly arranged in the accommodating cavity 11; a plurality of circular through holes 31 are arrayed at the joint of the water production pipeline 3 and the reverse osmosis membrane component 2 along the central direction thereof; the diameter of the circular through hole 31 is 5-15mm; the water producing pipeline 3 is used for conveying purified water filtered by the reverse osmosis membrane assembly 2 to the water tank through the circular through hole 31.
The membrane shell 1 comprises a shell 13, a flip cover 14 and a sealing plate 15; the shell 13 is of a semicircular ring structure; a lower support bar 131 is provided at one side of the housing 13; the lower support bar 131 is provided with through holes along its length direction; a first groove is symmetrically formed at the front end and the rear end of the inner wall of the shell 13; the turnover cover 14 is of a semicircular ring structure; an upper fixing bar 141 is provided at one side of the flip cover 14; two grooves are symmetrically formed at the front end and the rear end of the inner wall of the flip 14; the upper fixing bar 141 is provided with through holes along its length direction; the diameter of the flip 14 is equal to the diameter of the housing 13; the upper fixing bar 141 of the flip 14 is fixedly connected with the lower supporting bar 131 of the shell 13 through bolts; a sealing strip is arranged between the upper fixing strip 141 and the lower supporting strip 131; the other side of the flip 14 is rotatably connected with the shell 13 through an opening hinge 132; the open hinges 132 are symmetrically arranged at the front end and the rear end of the shell 13; the opening hinge 132 is made of SUS304 stainless steel; the opening hinge 132 is detachably connected with the shell 13 through bolts; the sealing plate 15 has a circular plate-shaped structure; the middle part of the sealing plate 15 is provided with a water outlet hole 151; the side wall of the sealing plate 15 is fixedly connected with a sealing rubber ring 152; the sealing plates 15 are symmetrically and fixedly arranged at the left end and the right end of the shell 13; the sealing rubber ring 152 is fixedly connected with the shell 13 and the flip 14 respectively through the first groove and the second groove; the water producing pipeline 3 is sleeved in the water outlet 151;
the shell 13 of the common membrane shell 1 is of an integrated structure, so that when the reverse osmosis membrane assembly 2 is damaged, the reverse osmosis membrane can only be replaced integrally; the reverse osmosis membrane inside can be directly replaced by adopting the flip 14 opening and closing structure, so that the utilization rate of resources is improved; the sealing plates 15 at the two ends of the membrane shell 1 are fixedly connected with the inner wall of the membrane shell 1 by virtue of the sealing rubber rings 152, so that the two ends have a sealing effect; when the water yield of the reverse osmosis membrane assembly 2 is reduced, unscrewing bolts between the upper fixing strip 141 and the lower supporting strip 131; at this time, the reverse osmosis membrane inside is completely opened, and then the reverse osmosis membrane and the inner wall of the membrane housing 1 are washed.
The membrane shell 1 is made of glass fiber reinforced plastic; the film shell 1 contacts the stock solution for a long time, if stainless materials are not adopted; then rust will form on the inner wall of the membrane shell 1 after a period of use; the part of rust can fall into the reverse osmosis membrane assembly 2 along with the scouring of the stock solution, and the reverse osmosis membrane assembly 2 is blocked, so that the service life of the semi-permeable membrane is greatly reduced.
The reverse osmosis membrane assembly 2 comprises a water inlet grid 21, a membrane 22 and a water outlet grid 23; the water inlet grid 21 is of a net structure; the water inlet grid 21 is used for circulating stock solution; the middle part of one side of the diaphragm 22 is fixedly connected with one end of the water inlet grid 21 through glue solution; two ends of one side of the diaphragm 22 are detachably and fixedly connected with the water inlet grid 21; four sides of the other side of the diaphragm 22 are fixedly connected with the water outlet grid 23 through glue solution; the membrane 22 is used for separating purified water from the stock solution; the water outlet grid 23 is of a net structure; the water outlet grid 23 is used for conveying purified water into the water producing pipeline 3;
the split type reverse osmosis membrane assembly 2 can be quickly opened when cleaning is needed, and the contact surface of the membrane 22 and the water inlet grid 21 is sterilized and cleaned, so that the cleaning efficiency of the reverse osmosis membrane assembly 2 is improved; if the conventional cleaning technology is adopted, the membrane 22 cannot be directly contacted, so that pollutants between the membrane 22 and the water inlet grid 21 need to be collected, and then cleaning liquid and a cleaning process are configured for the pollutants, so that the cleaning technology is inconvenient; the detachable reverse osmosis membrane assembly 2 can be used for rapidly opening a polluted surface, namely a contact surface of the membrane 22 and the water inlet grid 21, and directly cleaning, sterilizing and disinfecting the polluted surface; therefore, the working efficiency of cleaning is improved, and the waiting time of maintenance is shortened; the water outlet grid 23 and the membrane 22 are connected by glue, so that the sealing effect can be achieved, and the pollution of the raw liquid entering the water outlet grid 23 to purified water can be avoided.
The grid angle of the water inlet grid 21 is 110-130 degrees; the stock solution is pressed into the reverse osmosis membrane assembly 2 from the end surface of the water inlet grid 21 by a water pump, and flows along the grid of the water inlet grid 21, so that the flow rate of the stock solution is influenced by the angle of the grid; when the flow rate of the stock solution is increased, the filtration rate of the reverse osmosis membrane assembly 2 can be increased, and the working efficiency of the reverse osmosis membrane assembly 2 is improved.
The magnetic powder is uniformly arranged on four sides of the inner part of the diaphragm 22; the thickness of the membrane 22 is 0.1-0.3mm; because the membrane 22 in the reverse osmosis membrane assembly 2 mainly has a filtering effect, a large amount of scale and microorganisms are often accumulated on the contact surface between the membrane 22 and the water inlet grid 21 after a period of use; microorganisms therein often proliferate in large amounts at the contact surface of the membrane 22 with the water inlet grid 21 points, and these scale and microorganisms clog the membrane 22, so that the filtration efficiency of the membrane 22 is lowered; because the membrane 22 in the conventional reverse osmosis membrane is bonded with the water inlet grid 21 by adopting glue, the cleaning is inconvenient, a cleaning solvent for the pollution type is required to be designated, and the preparation work in the early stage is slow; the magnetic powder uniformly arranged in the membrane 22 facilitates the separation between the membrane 22 and the water inlet grid 21, and the membrane 22 and the water inlet grid 21 can be opened and closed for a plurality of times without damaging the connection between the membrane 22 and the water inlet grid 21; the method of spraying conventional disinfectant and then flushing with clear water for final ultraviolet irradiation sterilization can be directly adopted during cleaning, so that the preparation time for preparing cleaning solvent is shortened, and the cleaning efficiency is improved.
The free end of the water inlet grid 21 is fixedly connected with a magnetic stripe 211; the thickness of the water inlet grid 21 is 0.4-0.6mm; the thickness of the magnetic strip 211 is 0.8-1.0mm; the magnetic stripe is made of ferrite.
The side wall of the magnetic stripe 211 is provided with a chute; the thickness of the chute is 0.4-0.6mm; the magnetic strips 211 are connected with the free ends of the water inlet grids 21 in a sliding way through sliding grooves; the water inlet grid 21 and the membrane 22 complete magnetic attraction by virtue of the magnetic stripe 211; after the free end of the water inlet grid 21 slides into the chute, glue solution can be added at the chute to assist the water inlet grid 21 to be connected with the magnet more stably, and meanwhile, the water inlet grid 21 can also play a role in sealing so that the stock solution cannot flow out along the chute; when the magnetic stripe 211 is required to be disassembled, the magnetic stripe 211 can be separated from the water inlet grid 21 only by cutting the joint of the water inlet grid 21 and the magnet; or soluble glue is adopted, when the water inlet grid 21 is required to be separated from the magnet, dissolving liquid is dripped into the joint of the water inlet grid 21 and the magnet, and separation between the water inlet grid 21 and the magnet can be completed.
The connecting end between the water inlet grid 21 and the middle part of the membrane 22 is provided with a liquid injection hole 212 along the direction of the central axis of the connecting end; the diameter of the liquid injection hole 212 is 0.2-0.3mm; the liquid injection hole 212 is formed by laser drilling; the liquid injection hole 212 is used for injecting cleaning liquid; the cleaning fluid can adopt magnetic fluid; when the water inlet grid 21 needs to be cleaned, magnetic fluid is injected into the liquid injection holes 212; since the magnet adsorbs the magnetic fluid, the magnetic fluid flows from the connection end of the water inlet grid 21 and the diaphragm 22 to the connection end of the magnetic strip 211 along the grid of the water inlet grid 21; meanwhile, the pollutants attached to the inside are wrapped and clamped, and the magnetic fluid is nano-sized particles, so that the water inlet grid 21 can be cleaned and sterilized; the magnetic fluid flows to the magnetic stripe 211 for a shorter time than the time of spraying the sterilizing water to kill microorganisms, thereby improving the washing efficiency.
Specific embodiment II: this embodiment is suitable for filtration pressures of 100-150psi;
the water inlet grid 21 is made of SUS430 stainless iron; since the magnetic powder is uniformly arranged on the four sides of the inner part of the diaphragm 22, the water inlet grid 21 made of stainless iron can be completely attached to the diaphragm 22 by means of magnetic force adsorption; the bonding surface has stronger adhesive force and can bear larger working pressure compared with the adsorption area of a single magnetic strip 211.
Working principle:
when the reverse osmosis membrane module 2 is used, the stock solution is injected into the reverse osmosis membrane module; the sealing plates 15 at the two ends of the membrane shell 1 are fixedly connected with the inner wall of the membrane shell 1 by virtue of the sealing rubber rings 152, so that the two ends have a sealing effect; the raw liquid flows along the water inlet grid 21, and under the characteristic conditions of liquid pressure and high concentration liquid flowing to low concentration liquid, the raw liquid passes through the membrane 22 along the vertical direction of the membrane 22 and enters the water outlet grid 23; the fine pore diameter of the membrane 22 allows only water molecules in the stock solution to pass through, so that the stock solution is filtered into purified water, and the purified water enters the water production pipeline 3 along the water inlet grid 21.
After the reverse osmosis membrane module 2 is used for a long time, scale and microorganism flora are often formed in the reverse osmosis membrane module 2, so that the filtration efficiency of the reverse osmosis membrane module 2 is reduced; at this time, the bolts connecting the lower support bar 131 of the housing 13 and the upper fixing bar 141 of the folder 14 may be unscrewed; the flip 14 can be lifted up because the flip 14 is rotatably connected with the shell 13 by the opening hinge 132; and then the inner wall of the membrane shell 1 and the reverse osmosis membrane are directly cleaned.
When the reverse osmosis membrane is cleaned, the membrane 22 and the water inlet grid 21 are pulled to be torn to two sides; because the magnetic powder and stainless iron are arranged in the membrane 22 and the water inlet grid 21 are adopted, the magnetic powder and the stainless iron are mutually adsorbed; when the tensile force is greater than the adsorption force, the membrane 22 is separated from the water inlet grid 21, so that the contact surface of the membrane 22 and the water inlet grid 21 is cleaned; or magnetic fluid is injected into the liquid injection hole 212, and pollutants in the water inlet grid 21 are wrapped and clamped together by utilizing the effect that the magnetic fluid automatically flows to the magnetic stripe 211, so that the water inlet grid 21 is cleaned; after the cleaning is finished, the membrane 22 is bonded with the water inlet grid 21, and the membrane 22 and the water inlet grid 21 are bonded due to the adsorption effect of magnetic force; then the flip 14 is closed, and the flip 14 is fixedly connected with the shell 13 by bolts.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A roll-up reverse osmosis membrane module, characterized in that: comprises a membrane shell (1), a reverse osmosis membrane component (2) and a water producing pipeline (3);
the membrane shell (1) is of a columnar structure; a containing cavity (11) is formed in the membrane shell (1); the side wall of the membrane shell (1) is provided with a through pipeline (12); the through pipeline (12) is used for introducing stock solution to be filtered;
the reverse osmosis membrane component (2) is of a columnar structure and is coaxially and fixedly arranged in the accommodating cavity (11); one end of the reverse osmosis membrane component (2) is fixedly connected with the water production pipeline (3); the reverse osmosis membrane component (2) is wound around the central axis of the water production pipeline (3); the reverse osmosis membrane component (2) is used for filtering the stock solution into purified water; the reverse osmosis membrane assembly (2) can be used for rapidly disassembling all parts in the reverse osmosis membrane assembly and cleaning pollutants in the reverse osmosis membrane assembly (2);
the water producing pipeline (3) is coaxially and fixedly arranged in the accommodating cavity (11); the water production pipeline (3) is used for conveying purified water filtered by the reverse osmosis membrane assembly (2) to the water tank;
the membrane shell (1) comprises a shell (13), a flip cover (14) and a sealing plate (15); the shell (13) is of a semi-annular structure; one side of the shell (13) is provided with a lower supporting bar (131); the turnover cover (14) is of a semi-ring structure; an upper fixing strip (141) is arranged on one side of the flip cover (14); the diameter of the flip cover (14) is equal to the diameter of the shell (13); the upper fixing strip (141) of the flip cover (14) is fixedly connected with the lower supporting strip (131) of the shell (13) through bolts; a sealing strip is arranged between the upper fixing strip (141) and the lower supporting strip (131); the other side of the flip cover (14) is rotationally connected with the shell (13) through an opening hinge (132); the sealing plate (15) is of a plate-shaped structure; a water outlet hole is formed in the middle of the sealing plate (15); the side wall of the sealing plate (15) is fixedly connected with a sealing rubber ring; the sealing plates (15) are symmetrically and fixedly arranged at the left end and the right end of the shell (13); the water outlet hole is internally sleeved with the water producing pipeline (3);
the reverse osmosis membrane assembly (2) comprises a water inlet grid (21), a membrane (22) and a water outlet grid (23);
the water inlet grid (21) is of a net structure; the water inlet grid (21) is used for circulating stock solution;
the middle part of one side of the diaphragm (22) is fixedly connected with one end of the water inlet grid (21) through glue solution; two ends of one side of the diaphragm (22) are detachably and fixedly connected with the water inlet grid (21); four sides of the other side of the diaphragm (22) are fixedly connected with the water outlet grid (23) through glue solution; the membrane (22) is used for separating purified water from the stock solution; the water outlet grid (23) is of a net structure; the water outlet grid (23) is used for conveying purified water into the water production pipeline (3);
the membrane shell (1) is made of glass fiber reinforced plastic;
the grid angle of the water inlet grid (21) is 110-130 degrees;
the inside of the membrane (22) is uniformly provided with magnetic powder;
the free end of the water inlet grid (21) is fixedly connected with a magnetic stripe (211);
the side wall of the magnetic strip (211) is provided with a chute; the magnetic strips (211) are connected with the free ends of the water inlet grids (21) in a sliding manner through the sliding grooves;
the connecting end between the water inlet grid (21) and the middle part of the diaphragm (22) is provided with a liquid injection hole (212) along the direction of the central axis of the connecting end; the liquid injection hole (212) is used for injecting cleaning liquid.
2. A roll-to-roll reverse osmosis membrane module according to claim 1, wherein: the water inlet grid (21) is made of SUS430 stainless iron.
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| CN202211509530.XA CN115888397B (en) | 2022-11-29 | 2022-11-29 | Rolling reverse osmosis membrane assembly |
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| JPH11137978A (en) * | 1997-11-10 | 1999-05-25 | Tohoku Electric Power Co Inc | Membrane contaminant removing method of membrane separation device |
| DE102011109093A1 (en) * | 2011-08-01 | 2013-02-07 | Manfred Völker | Combination of a single-user RO device with a hemodialysis machine |
| CN208716909U (en) * | 2018-08-04 | 2019-04-09 | 深圳市诚荣智能科技有限公司 | A kind of straight-through filter element multichannel threshold switch water purifier |
| CN112717698A (en) * | 2020-12-09 | 2021-04-30 | 温州职业技术学院 | Self-cleaning filter device |
| CN113750801B (en) * | 2021-09-09 | 2024-06-21 | 广州沃刻科技有限公司 | Surface type reverse osmosis membrane filter element |
| CN216321152U (en) * | 2021-12-01 | 2022-04-19 | 郑州净玉源环保科技有限公司 | Micro-wastewater reverse osmosis water-saving membrane |
| CN217248060U (en) * | 2022-02-21 | 2022-08-23 | 厦门斯帝沣尼制药成套设备有限公司 | Industrial filter element capable of rapidly detecting service life of reverse osmosis membrane |
| CN216878769U (en) * | 2022-03-10 | 2022-07-05 | 时蓉 | Environment-friendly high-efficiency high-temperature-resistant corrosion-resistant reverse osmosis membrane element |
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Inventor after: Qi Jingyun Inventor after: Yue Xinye Inventor after: Wu Lin Inventor after: Wang Qing Inventor after: Liu Wei Inventor before: Yue Xinye Inventor before: Qi Jingyun Inventor before: Wu Lin Inventor before: Wang Qing Inventor before: Liu Wei |
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Address after: No. 188, Nanhuashan Road, Si'an Town, Changxing County, Huzhou City, Zhejiang Province 313000 Patentee after: Zhejiang Aoshi Core Material Technology Co.,Ltd. Country or region after: China Address before: 313100 No. 188, Nanhuashan Road, Si'an Town, Changxing County, Huzhou City, Zhejiang Province Patentee before: Zhejiang Aoshi Environmental Technology Co.,Ltd. Country or region before: China |