CN113955829A - Reverse osmosis ultrafiltration water treatment device - Google Patents
Reverse osmosis ultrafiltration water treatment device Download PDFInfo
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- CN113955829A CN113955829A CN202111575008.7A CN202111575008A CN113955829A CN 113955829 A CN113955829 A CN 113955829A CN 202111575008 A CN202111575008 A CN 202111575008A CN 113955829 A CN113955829 A CN 113955829A
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- ultrafiltration
- reverse osmosis
- fixedly connected
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- port closing
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a reverse osmosis ultrafiltration water treatment device, which belongs to the technical field of sewage treatment and comprises a treatment box, wherein an ultrafiltration unit and a reverse osmosis unit are arranged in the treatment box, the ultrafiltration unit comprises two port closing parts which are symmetrically arranged up and down, a plurality of ultrafiltration pipes are arranged between the two port closing parts, the middle parts of the ultrafiltration pipes are fixedly connected with ultrafiltration membranes, the top parts of the port closing parts positioned above are fixedly provided with ultrafiltration booster pumps, and the bottom parts of the port closing parts positioned below are communicated with the reverse osmosis unit through butt-joint pipes; the ultrafiltration unit of the invention carries out ultrafiltration operation on the sewage through a plurality of independently arranged ultrafiltration tubes and utilizes the port closing piece to close part of the ultrafiltration tubes, so that a plurality of ultrafiltration tubes can alternately work in batches, the ultrafiltration filtering effect is ensured, and meanwhile, the continuous working time of the device is prolonged.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a reverse osmosis ultrafiltration water treatment device.
Background
Ultrafiltration is a membrane separation technique, and the filtration process is a solution separation process based on the mechanical splitting principle by using the pressure difference between two sides of the membrane as the driving force. Reverse osmosis is the process of separating solvent from a solution by passing the solvent through a reverse osmosis membrane under sufficient pressure to reverse the direction of osmosis. In the actual water treatment process, various membrane processes such as ultrafiltration and reverse osmosis are often combined for use, so that the purpose of efficiently treating pollutants is achieved.
Fig. 1 shows a water purification apparatus combining ultrafiltration and reverse osmosis, which is to sequentially pass sewage through an ultrafiltration mechanism and a reverse osmosis mechanism to treat the sewage. The water treatment equipment with the structure has the advantages that the ultrafiltration mechanism is arranged at the front end of the reverse osmosis mechanism, and the speed of impurities such as colloid accumulated on the inner ultrafiltration membrane is much higher than that of the reverse osmosis membrane, so that the ultrafiltration membrane needs to be cleaned or replaced more frequently when in use, and the use is inconvenient.
Disclosure of Invention
The invention aims to provide a reverse osmosis ultrafiltration water treatment device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a reverse osmosis ultrafiltration water treatment device comprises a treatment box, wherein an ultrafiltration unit and a reverse osmosis unit are arranged in the treatment box, the ultrafiltration unit comprises two port closing parts which are arranged up and down symmetrically, a plurality of ultrafiltration tubes are arranged between the two port closing parts, the middle parts of the ultrafiltration tubes are fixedly connected with ultrafiltration membranes, the top parts of the port closing parts positioned above are fixedly provided with ultrafiltration booster pumps, and the bottom parts of the port closing parts positioned below are communicated with the reverse osmosis unit through butt-joint tubes;
the port sealing piece comprises a mounting plate, a cavity is formed in the middle of the mounting plate, a water inlet cover is fixedly connected to the top of the cavity, the top of the water inlet cover is fixedly connected with the output end of the ultrafiltration booster pump through an ultrafiltration water inlet pipe, and the input end of the ultrafiltration booster pump is fixedly connected with a sewage water inlet pipe;
the bottom of the mounting plate is fixedly connected with a butt joint plate, the middle of the butt joint plate is provided with a plurality of butt joint ports, the inner walls of the butt joint ports are respectively and fixedly connected with the end parts of a plurality of ultrafiltration tubes, one side of the butt joint plate is rotatably connected with a sealing plate, the middle of the sealing plate is provided with a plurality of conduction ports, and the number of the conduction ports is less than that of the butt joint ports; the border fixedly connected with of closing plate adjusts the ring gear, the port closing member is still including the motor case, the inner wall fixed mounting of motor case has driving motor, driving motor's output passes through drive gear and is connected with the meshing of adjusting the ring gear.
As a further scheme of the invention: two clean mouths that are the symmetry and set up in milipore filter both sides are seted up to one side of ultrafiltration pipe, the outside cover of ultrafiltration pipe is equipped with closed sleeve, two clean pipes of one side fixedly connected with of closed sleeve, the interval of two clean pipes is unanimous with the interval of two clean mouths, and the clean pipe that is located the below is used for intaking, is called clean inlet tube, and the clean pipe that is located the top is used for going out water, is called clean outlet pipe, the one end of clean inlet tube and the output fixed connection of external clean water pump, the one end of clean outlet pipe communicates with each other with the drain of peripheral hardware.
Still be provided with the adjustment mechanism who is used for adjusting clean pipe position between the port closure piece that two longitudinal symmetries set up, adjustment mechanism includes the regulating box, the inner wall fixed mounting of regulating box has the lift cylinder, the output fixedly connected with alignment jig of lift cylinder, the middle part fixedly connected with adjustment disk of alignment jig, a plurality of regulation mouth, a plurality of have been seted up at the middle part of adjustment disk the seal sleeve pipe sets up respectively inside a plurality of regulation mouth, at least one the inner wall of regulation mouth and seal sleeve pipe's middle part fixed connection.
As a further scheme of the invention: the reverse osmosis unit comprises a reverse osmosis box, two sides of the reverse osmosis box are fixedly connected with air guide sleeves, the top of one air guide sleeve is fixedly connected with the output end of the reverse osmosis booster pump, the input end of the reverse osmosis booster pump is fixedly connected with a butt joint pipe, and the middle part of the inner wall of the reverse osmosis box is fixedly connected with a reverse osmosis membrane; a backwashing disc is arranged on one side of the reverse osmosis membrane, a washing water inlet pipe and a washing water outlet pipe are respectively and fixedly connected to the two sides of the backwashing disc, a plurality of backwashing pipes are fixedly connected to the middle of the backwashing disc, one ends of the plurality of backwashing discs are communicated with the washing water inlet pipe, one end of the washing water inlet pipe is communicated with the output end of an external washing water pump, one end of the washing water outlet pipe is communicated with an external sewage discharge outlet, and one-way valves are fixedly mounted on the inner walls of the washing water inlet pipe and the washing water outlet pipe so as to ensure that water only can flow in through the washing water inlet pipe and can be sent out through the washing water outlet pipe; a plurality of water permeable openings are formed in gaps among the plurality of backwashing pipes, and a purified water outlet pipe is fixedly connected to the bottom of the other air guide sleeve.
Compared with the prior art, the invention has the beneficial effects that: according to the ultrafiltration unit, the sewage is subjected to ultrafiltration operation through the plurality of independently arranged ultrafiltration tubes, and partial ultrafiltration tubes are sealed by using the port sealing piece when needed, so that the plurality of ultrafiltration tubes can alternately work in batches, when the ultrafiltration efficiency is reduced due to excessive impurities accumulated in one batch of ultrafiltration tubes, the other batch of ultrafiltration tubes can be directly replaced, the ultrafiltration effect is ensured, and meanwhile, the continuous working time of the device is prolonged; the closed sleeve is driven to lift by arranging the adjusting mechanism, so that the cleaning pipe is conducted and closed, the cleaning pipe is used for realizing back washing of the ultrafiltration membrane, and the filtering effect of the ultrafiltration membrane is ensured; by arranging the air guide sleeve, the contact area between water flow entering the reverse osmosis box and the reverse osmosis membrane is increased, and the filtering efficiency is improved; set up the backwash pipe of a plurality of dispersion for it is more even effective to the clearance of reverse osmosis membrane.
Drawings
FIG. 1 is a schematic diagram of a prior art device;
FIG. 2 is a cross-sectional view of a treatment tank of the present invention;
FIG. 3 is a cross-sectional view of the port closure of the present invention;
FIG. 4 is a cross-sectional view of a reverse osmosis unit of the present invention;
FIG. 5 is a perspective view of the adjustment mechanism of the present invention;
FIG. 6 is a structural cross-sectional view of an ultrafiltration tube of the present invention.
In the figure: 1. a treatment tank; 2. an ultrafiltration tube; 3. ultrafiltration membranes; 4. an ultrafiltration booster pump; 5. mounting a plate; 6. a sewage inlet pipe; 7. a butt plate; 8. a butt joint port; 9. a closing plate; 10. a drive motor; 11. adjusting the gear ring; 12. cleaning the mouth; 13. cleaning the tube; 14. closing the sleeve; 15. an adjusting box; 16. an adjusting bracket; 17. an adjusting disk; 18. an adjustment port; 19. a reverse osmosis tank; 20. a pod; 21. a reverse osmosis booster pump; 22. a reverse osmosis membrane; 23. a backwash plate; 24. a backwash pipe; 25. a purified water outlet pipe; 26. and (4) a water permeable port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2, in the embodiment of the present invention, a reverse osmosis ultrafiltration water treatment apparatus includes a treatment tank 1, an ultrafiltration unit and a reverse osmosis unit are disposed inside the treatment tank 1, the ultrafiltration unit includes two port closures which are symmetrically disposed up and down, a plurality of ultrafiltration tubes 2 are disposed between the two port closures, an ultrafiltration membrane 3 is fixedly connected to the middle of each ultrafiltration tube 2, an ultrafiltration booster pump 4 is fixedly mounted on the top of the port closure located above, and the bottom of the port closure located below is communicated with the reverse osmosis unit through a butt pipe;
referring to fig. 3, the port sealing member includes a mounting plate 5, a cavity is formed in the middle of the mounting plate 5, a water inlet cover is fixedly connected to the top of the cavity, the top of the water inlet cover is fixedly connected to the output end of the ultrafiltration booster pump 4 through an ultrafiltration water inlet pipe, and the input end of the ultrafiltration booster pump 4 is fixedly connected to a sewage water inlet pipe 6;
the bottom of the mounting plate 5 is fixedly connected with a butt plate 7, the middle part of the butt plate 7 is provided with a plurality of butt ports 8 which are distributed at equal intervals, the inner walls of the plurality of butt ports 8 are respectively and fixedly connected with the end parts of the plurality of ultrafiltration tubes 2, one side of the butt plate 7 is rotatably connected with a sealing plate 9, the middle part of the sealing plate 9 is provided with a plurality of conduction ports which are distributed at equal intervals, and the number of the conduction ports is less than that of the butt ports 8; in the present embodiment, there are three conduction ports, six connection ports 8, and six ultrafiltration tubes 2;
the edge of the sealing plate 9 is fixedly connected with an adjusting toothed ring 11, the port sealing piece also comprises a motor box, the inner wall of the motor box is fixedly provided with a driving motor 10, the output end of the driving motor 10 is meshed with the adjusting toothed ring 11 through a driving gear, the sealing plate 9 is driven to rotate through the driving motor 10, when the conduction port is aligned with the butt-joint port 8 to conduct, the corresponding ultrafiltration pipe 2 connected in the butt-joint port 8 is connected with water flow for filtration, the rest of the ports of the ultrafiltration pipes 2 are sealed, at the moment, the cleaning operation of the ultrafiltration pipes 2 can be executed, when necessary, part of the ultrafiltration pipes 2 are sealed through the port sealing piece, so that a plurality of ultrafiltration pipes 2 can work alternately in batches, when the ultrafiltration efficiency is reduced due to excessive impurities accumulated in the ultrafiltration pipes 2 in one batch, the ultrafiltration pipes 2 in another batch can be directly replaced, and the ultrafiltration filtering effect is ensured, and simultaneously, the continuous working time of the device is prolonged.
Two cleaning ports 12 symmetrically arranged on two sides of an ultrafiltration membrane 3 are formed in one side of an ultrafiltration tube 2, a closed sleeve 14 is sleeved outside the ultrafiltration tube 2, two cleaning tubes 13 are fixedly connected to one side of the closed sleeve 14, the distance between the two cleaning tubes 13 is consistent with the distance between the two cleaning ports 12, the cleaning tube 13 positioned below is used for water inflow and is called a cleaning water inlet tube, the cleaning tube 13 positioned above is used for water outflow and is called a cleaning water outlet tube, one end of the cleaning water inlet tube is fixedly connected with the output end of an external cleaning water pump, and one end of the cleaning water outlet tube is communicated with a drain outlet of the external device; by arranging the two cleaning pipes 13, when the two ends of the ultrafiltration pipe 2 are sealed, water is fed from the lower part of the ultrafiltration membrane 3 and is discharged from the upper part of the ultrafiltration membrane 3, so that backwashing on the ultrafiltration membrane 3 is realized.
Referring to fig. 2 and 5, an adjusting mechanism for adjusting the position of the cleaning tube 13 is further disposed between two port closing members disposed in an up-down symmetrical manner, in this embodiment, the adjusting mechanism includes two adjusting boxes 15 disposed in a symmetrical manner, the inner walls of the two adjusting boxes 15 are both fixedly provided with a lifting cylinder, the output ends of the two lifting cylinders are both fixedly connected with an adjusting frame 16, the two adjusting frames 16 are disposed in an up-down staggered manner, the middle portions of the adjusting frames 16 are both fixedly connected with adjusting discs 17, the middle portions of the two adjusting discs 17 are both provided with six adjusting ports 18, the adjusting ports 18 on the two adjusting discs 17 are disposed in an aligned manner, each of the two adjusting discs 17 is provided with three adjusting ports 18 fixedly connected with the sealing sleeve 14, the other three adjusting ports 18 are slidably connected with the sealing sleeve 14, and any one of the sealing sleeves 14 is fixedly connected with only one adjusting port 18; thus, one adjusting disc 17 can only drive three closed sleeves 14 to move up and down;
in order to ensure the stability of the movement, one end of each of the two adjusting brackets 16 is slidably connected to the outer wall of the adjusting box 15 on the corresponding side.
Referring to fig. 4, the reverse osmosis unit includes a reverse osmosis tank 19, two sides of the reverse osmosis tank 19 are fixedly connected with fairings 20, the top of one of the fairings 20 is fixedly connected with the output end of a reverse osmosis booster pump 21, the input end of the reverse osmosis booster pump 21 is fixedly connected with a butt pipe, and the middle part of the inner wall of the reverse osmosis tank 19 is fixedly connected with a reverse osmosis membrane 22; by arranging the air guide sleeve 20, the contact area between water flow entering the reverse osmosis box 19 and the reverse osmosis membrane 22 is increased, and the filtering efficiency is improved;
a backwashing disc 23 is arranged on one side of the reverse osmosis membrane 22, a flushing water inlet pipe and a flushing water outlet pipe are respectively and fixedly connected to the two sides of the backwashing disc 23, the flushing water outlet pipe is arranged on one side, away from the purified water outlet pipe 25, of the reverse osmosis membrane, a plurality of backwashing pipes 24 are fixedly connected to the middle part of the backwashing disc 23, and the reverse osmosis membrane 22 is cleaned more uniformly and effectively by arranging a plurality of scattered backwashing pipes 24;
one end of each of the plurality of back washing discs 23 is communicated with the washing water inlet pipe, one end of the washing water inlet pipe is communicated with the output end of an externally connected washing water pump, one end of the washing water outlet pipe is communicated with an externally arranged sewage discharge outlet, and the inner walls of the washing water inlet pipe and the washing water outlet pipe are fixedly provided with one-way valves so as to ensure that water flow can only flow in from the washing water inlet pipe and can be sent out from the washing water outlet pipe; a plurality of water permeable ports 26 are arranged at the gaps among the plurality of back flushing pipes 24, and a purified water outlet pipe 25 is fixedly connected at the bottom of the other air guide sleeve 20.
When the invention is used; sewage to be treated is connected through a sewage inlet pipe 6, enters a cavity through a water inlet cover after being pressurized by an ultrafiltration booster pump 4, sequentially passes through a conduction port and a butt joint port 8 to enter an ultrafiltration pipe 2, is filtered by an ultrafiltration membrane 3, sequentially passes through the butt joint port 8 and the conduction port to enter an input end of a reverse osmosis booster pump 21, enters a reverse osmosis box 19 through a flow guide cover 20 after being pressurized by the reverse osmosis booster pump 21, is filtered by a reverse osmosis membrane 22 to obtain purified water, and is discharged through a purified water outlet pipe 25;
after working for a period of time, the driving motor 10 can be started to drive the driving gear and the adjusting gear ring 11 to rotate, further drive the sealing plate 9 to rotate, and seal the ultrafiltration tubes 2 of one batch in a working state, so that the conduction opening is shifted and conducted with the end part of the ultrafiltration tubes 2 of another batch, and the ultrafiltration tubes 2 of the batch continue to carry out filtration operation; at the moment, the lifting cylinder is started to drive the adjusting frame 16 and the adjusting disc 17 to lift, and further drive the closed sleeve 14 to lift, so that the cleaning port 12 is in butt joint with and communicated with the cleaning pipe 13, then the external cleaning water pump is started, clean water is sent into the closed ultrafiltration pipe 2 through the cleaning water inlet pipe, the clean water passes through the ultrafiltration membrane 3 to carry out backwashing, and sewage is discharged through the cleaning water outlet pipe;
when the reverse osmosis membrane 22 needs to be cleaned, the external washing water pump is started, clear water is sent into the washing water inlet pipe, the clear water is sent out from the plurality of backwashing pipes 24 to backwash the reverse osmosis membrane 22, and backwashing sewage is sent out from the washing water outlet pipe.
Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. A reverse osmosis ultrafiltration water treatment device comprises a treatment box (1), wherein an ultrafiltration unit and a reverse osmosis unit are arranged inside the treatment box (1), and the reverse osmosis ultrafiltration water treatment device is characterized in that the ultrafiltration unit comprises two port closing parts which are arranged in an up-down symmetrical manner, a plurality of ultrafiltration tubes (2) are arranged between the two port closing parts, the middle parts of the ultrafiltration tubes (2) are fixedly connected with ultrafiltration membranes (3), the top parts of the port closing parts positioned above are fixedly provided with ultrafiltration booster pumps (4), and the bottom parts of the port closing parts positioned below are communicated with the reverse osmosis unit through butt-joint tubes;
the port closing member includes butt joint plate (7), a plurality of butt joint mouth (8), a plurality of have been seted up at the middle part of butt joint plate (7) butt joint mouth (8) inner wall respectively with the tip fixed connection of a plurality of ultrafiltration pipe (2), one side of butt joint plate (7) is rotated and is connected with closing plate (9), a plurality of conduction mouth has been seted up at the middle part of closing plate (9), the quantity of conduction mouth is less than the quantity to butt joint mouth (8).
2. A reverse osmosis ultrafiltration water treatment device according to claim 1, wherein the edge of the closing plate (9) is fixedly connected with an adjusting toothed ring (11), the port closing part further comprises a motor box, the inner wall of the motor box is fixedly provided with a driving motor (10), and the output end of the driving motor (10) is meshed and connected with the adjusting toothed ring (11) through a driving gear.
3. A reverse osmosis ultrafiltration water treatment device according to claim 1, wherein one side of the ultrafiltration tube (2) is provided with two cleaning ports (12) symmetrically arranged on two sides of the ultrafiltration membrane (3), a closed sleeve (14) is sleeved outside the ultrafiltration tube (2), one side of the closed sleeve (14) is fixedly connected with two cleaning tubes (13), and the distance between the two cleaning tubes (13) is consistent with the distance between the two cleaning ports (12).
4. A reverse osmosis ultrafiltration water treatment device according to claim 3, wherein an adjusting mechanism for adjusting the position of the cleaning tube (13) is further arranged between two vertically symmetrically arranged port closing members, the adjusting mechanism comprises an adjusting box (15), a lifting cylinder is fixedly mounted on the inner wall of the adjusting box (15), an adjusting frame (16) is fixedly connected to the output end of the lifting cylinder, an adjusting disc (17) is fixedly connected to the middle of the adjusting frame (16), a plurality of adjusting ports (18) are formed in the middle of the adjusting disc (17), and a plurality of sealing sleeves (14) are respectively arranged inside the plurality of adjusting ports (18).
5. A reverse osmosis ultrafiltration water treatment device according to claim 1, wherein the reverse osmosis unit comprises a reverse osmosis tank (19), flow guide covers (20) are fixedly connected to both sides of the reverse osmosis tank (19), a reverse osmosis booster pump (21) is fixedly installed at the top of one flow guide cover (20), the input end of the reverse osmosis booster pump (21) is fixedly connected with the butt joint pipe, and a reverse osmosis membrane (22) is fixedly connected to the middle part of the inner wall of the reverse osmosis tank (19).
6. A reverse osmosis ultrafiltration water treatment device according to claim 5, wherein a backwashing disc (23) is arranged on one side of the reverse osmosis membrane (22), a washing water inlet pipe and a washing water outlet pipe are respectively and fixedly connected to the two sides of the backwashing disc (23), a plurality of backwashing pipes (24) are fixedly connected to the middle part of the backwashing disc (23), one ends of the plurality of backwashing discs (23) are communicated with the washing water inlet pipe, and a plurality of water permeable openings (26) are formed in gaps among the plurality of backwashing pipes (24).
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| CN202111575008.7A CN113955829B (en) | 2021-12-22 | 2021-12-22 | Reverse osmosis ultrafiltration water treatment device |
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| CN202111575008.7A CN113955829B (en) | 2021-12-22 | 2021-12-22 | Reverse osmosis ultrafiltration water treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115282780A (en) * | 2022-10-09 | 2022-11-04 | 南通西田环保科技有限公司 | High-salinity sewage treatment equipment |
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