CN113578053A - Reverse osmosis membrane purification system - Google Patents
Reverse osmosis membrane purification system Download PDFInfo
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- CN113578053A CN113578053A CN202110832225.3A CN202110832225A CN113578053A CN 113578053 A CN113578053 A CN 113578053A CN 202110832225 A CN202110832225 A CN 202110832225A CN 113578053 A CN113578053 A CN 113578053A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
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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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a reverse osmosis membrane purification system, which comprises: belt cleaning device, reverse osmosis membrane group and high-pressure pump, be provided with 12 reverse osmosis membranes in the reverse osmosis membrane group altogether and be 3X4 matrix distribution, the reverse osmosis membrane group is including parallelly connected membrane group and series connection membrane group, parallelly connected membrane group is including parallelly connected membrane group one, parallelly connected membrane group two, parallelly connected membrane group three and parallelly connected membrane group four, series connection membrane group is including series connection membrane group one, series connection membrane group two, series connection membrane group three and series connection membrane group four. The invention uses the reverse osmosis series and parallel using modes simultaneously and adds the automatic cleaning device, thereby improving the water yield and prolonging the service life; the top-grade reverse osmosis membrane which is durable, high in desalination rate and high in water yield under the condition of low temperature and high pollution environment can filter five types of surface water sources, has high filtering efficiency and strong dirt intercepting capability, can be repeatedly used after a system is cleaned, and is convenient to maintain.
Description
Technical Field
The invention relates to the technical field of reverse osmosis purification, in particular to a reverse osmosis membrane purification system.
Background
The method has the advantages that the China is wide in range, geological disasters such as earthquakes and typhoons cannot be avoided, the post-disaster clean drinkable water source becomes very important, general ultrafiltration and microfiltration systems cannot directly purify the water source with serious surface pollution, surface water sources contain various heavy metal ions, virus microorganisms and organic matter soluble solid microfiltration and ultrafiltration cannot be eliminated, and particularly the water source needs to be drunk instantly in a field battle environment with severe natural environment, so that a primary reverse osmosis system needs to be added in a rough filtration, microfiltration and ultrafiltration purification system. In the present stage, drought or geological disasters solve the drinking water problem of people, and the best method adopted at present is to filter surface water into a water source which can be directly drunk.
At present, when the existing reverse osmosis device is used for treating surface water, because the surface water has more impurities such as algae, jelly, microorganisms, silt and the like, the filtering efficiency is poor, the water yield is low, and the service life of equipment is short. For this reason, a new scheme needs to be designed to give improvements.
Disclosure of Invention
The invention aims to provide a reverse osmosis membrane purification system, which solves the problems of poor filtration efficiency, low water yield and short service life of equipment due to more impurities such as surface water algae, jelly, microorganisms, silt and the like when an existing reverse osmosis device is used for treating surface water, and meets the actual use requirement.
In order to achieve the purpose, the invention provides the following technical scheme: a reverse osmosis membrane purification system comprising: the device comprises a cleaning device, a reverse osmosis membrane group and a high-pressure pump, wherein 12 reverse osmosis membranes are arranged in the reverse osmosis membrane group and distributed in a 3X4 matrix, the reverse osmosis membrane group comprises a parallel membrane group and a series membrane group, the parallel membrane group comprises a parallel membrane group I, a parallel membrane group II, a parallel membrane group III and a parallel membrane group IV, and the series membrane group comprises a series membrane group I, a series membrane group II, a series membrane group III and a series membrane group IV; one end of each of the parallel membrane group and the serial membrane group is provided with a pure water outlet and a concentrated water outlet, the other end of each of the parallel membrane group and the serial membrane group is provided with a liquid inlet, the pure water outlets of the parallel membrane group and the serial membrane group are connected in parallel on a pure water pipe by adopting a guide pipe, the concentrated water outlet of the parallel membrane group IV is connected with the liquid inlet of the serial membrane group I by adopting a guide pipe, the concentrated water outlets of the serial membrane group I, the serial membrane group II, the serial membrane group III and the serial membrane group IV are respectively connected to the serial membrane group II, the serial membrane group III, the serial membrane group IV and the concentrated water pipe by adopting guide pipes, and the pure water pipe is further provided with an electronic flowmeter and a TDS online detector; the cleaning device comprises a water tank and a backwashing pump, wherein a water inlet of the backwashing pump is connected with the water tank through a guide pipe, and a water outlet of the backwashing pump is connected with a parallel membrane group I through a guide pipe.
As a preferred embodiment of the invention, the parallel membrane group i, the parallel membrane group ii, the parallel membrane group iii and the parallel membrane group iv are respectively provided with two reverse osmosis membranes and are sequentially and equidistantly arranged from bottom to top, and the series membrane group i, the series membrane group ii, the series membrane group iii and the series membrane group iv are sequentially arranged on one side of the parallel membrane group i, the parallel membrane group ii, the parallel membrane group iii and the parallel membrane group iv from bottom to top.
As a preferred embodiment of the invention, the water inlet of the high-pressure pump is connected with the water tank by a conduit, and the water outlet of the high-pressure pump is connected with the liquid inlet pipe and is connected with the liquid inlet of the parallel membrane group I through the liquid inlet pipe.
As a preferred embodiment of the present invention, the water tank is filled with raw water, and the raw water is divided into two water paths by the high-pressure pump and sequentially enters the parallel membrane group i, the parallel membrane group ii, the parallel membrane group iii and the parallel membrane group iv.
As a preferred embodiment of the invention, the water tank is provided with an external water source water supplementing interface, and the external water source water supplementing interface is provided with a water adding valve.
As a preferred embodiment of the invention, a guide pipe from the backwashing pump to the parallel membrane group I is connected with a backwashing water outlet pipe, a first emptying pipe, a second emptying pipe and a pressure gauge, the backwashing water outlet pipe, the first emptying pipe and the second emptying pipe are connected in parallel on the guide pipe, emptying valves are respectively arranged on the first emptying pipe and the second emptying pipe, and a check valve is also arranged on the second emptying pipe.
In a preferred embodiment of the present invention, the pure water pipe is provided with a branch pipe, the end of the branch pipe is connected with the water tank, and the branch pipe is provided with a water adding valve.
As a preferred embodiment of the invention, the reverse osmosis membrane filter element consists of a liquid inlet, a sealing ring, a water production pipe, a concentrated water channel, a membrane surface, a membrane supporting layer, a pure water collecting channel, a membrane supporting layer, a pure water outlet and a concentrated water outlet.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, reverse osmosis serial and parallel use modes are used simultaneously and an automatic cleaning device is added, so that the water yield is improved and the service life is prolonged; the top-grade reverse osmosis membrane which is durable, high in desalination rate and high in water yield under the condition of low temperature and high pollution environment can filter five types of surface water sources, has high filtering efficiency and strong dirt intercepting capability, can be repeatedly used after a system is cleaned, and is convenient to maintain.
Drawings
FIG. 1 is a block diagram of a reverse osmosis membrane purification system according to the present invention;
FIG. 2 is a top view of a reverse osmosis membrane purification system according to the present invention;
FIG. 3 is a schematic diagram of the operation of the reverse osmosis membrane purification system of the present invention;
fig. 4 is a structural view of a reverse osmosis membrane core according to the present invention.
In the figure, 1, a parallel membrane group I; 2. a second parallel membrane group; 3. a third parallel membrane group; 4. a parallel membrane group IV; 5. a first series membrane group; 6. connecting a second membrane group in series; 7. connecting a membrane group III in series; 8. connecting a membrane group in series; 9. a water tank; 10. a high pressure pump; 11. a concentrated water pipe; 12. a backwash pump; 13. a pure water pipe; 14. a liquid inlet pipe.
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. 1-4, the present invention provides a technical solution: a reverse osmosis membrane purification system comprising: the device comprises a cleaning device, a reverse osmosis membrane group and a high-pressure pump 10, wherein 12 reverse osmosis membranes are arranged in the reverse osmosis membrane group and distributed in a 3X4 matrix, the reverse osmosis membrane group comprises a parallel membrane group and a series membrane group, the parallel membrane group comprises a parallel membrane group I1, a parallel membrane group II 2, a parallel membrane group III 3 and a parallel membrane group IV 4, and the series membrane group comprises a series membrane group I5, a series membrane group II 6, a series membrane group III 7 and a series membrane group IV 8; one end of each of the parallel membrane group and the serial membrane group is provided with a pure water outlet and a concentrated water outlet, the other end of each of the parallel membrane group and the serial membrane group is provided with a liquid inlet, the pure water outlets of the parallel membrane group and the serial membrane group are connected in parallel on a pure water pipe 13 through a guide pipe, the concentrated water outlet of the parallel membrane group IV is connected with the liquid inlet of the serial membrane group I5 through a guide pipe, the concentrated water outlets of the serial membrane group I5, the serial membrane group II 6, the serial membrane group III 7 and the serial membrane group IV 8 are respectively connected to the serial membrane group II 6, the serial membrane group III 7, the serial membrane group IV 8 and the concentrated water pipe 11 through guide pipes, and the pure water pipe 13 is further provided with an electronic flowmeter and a TDS online detector; the cleaning device comprises a water tank 9 and a backwashing pump 12, a water inlet of the backwashing pump 12 is connected with the water tank 9 through a guide pipe, a water outlet of the backwashing pump 12 is connected with a parallel membrane group 1 through a guide pipe, and the backwashing pump 12 washes the membrane group, so that the service life is prolonged.
In a further improved mode, the parallel membrane group I1, the parallel membrane group II 2, the parallel membrane group III 3 and the parallel membrane group IV 4 are respectively provided with two reverse osmosis membranes and are sequentially arranged at equal intervals from bottom to top, the series membrane group I5, the series membrane group II 6, the series membrane group III 7 and the series membrane group IV 8 are sequentially arranged on one side of the parallel membrane group I1, the parallel membrane group II 2, the parallel membrane group III 3 and the parallel membrane group IV 4 from bottom to top, the parallel membrane group filters raw water for multiple times and improves the quality of pure water, and the series membrane group filters concentrated water discharged by the parallel membrane group and reduces waste of water resources.
In a further improved mode, a water inlet of the high-pressure pump 10 is connected with the water tank 9 through a guide pipe, a water outlet of the high-pressure pump 10 is connected with the liquid inlet pipe 14 and is connected with a liquid inlet of the parallel membrane group I1 through the liquid inlet pipe 14, raw water is input into the parallel membrane group I1 through the high-pressure pump 10, and the raw water is sequentially input into the parallel membrane group II 2, the parallel membrane group III 3 and the parallel membrane group IV 4 to be filtered for multiple times after being filtered by the parallel membrane group I1.
In a further improved manner, raw water is filled in the water tank 9 and is divided into two water paths by the high-pressure pump 10 and sequentially enters the parallel membrane group I1, the parallel membrane group II 2, the parallel membrane group III 3 and the parallel membrane group IV 4. An external water source water supplementing interface is installed on the water tank 9, a water adding valve is arranged on the external water source water supplementing interface, raw water can be supplemented into the water tank 9 after the water adding valve is opened, and a liquid level switch is arranged inside the water tank 9 to control the liquid level inside the water tank 9.
In a further improvement mode, a backwashing water outlet pipe, a first emptying pipe, a second emptying pipe and a pressure gauge are connected to a guide pipe from the backwashing pump 12 to the parallel membrane group I1, the backwashing water outlet pipe, the first emptying pipe and the second emptying pipe are connected to the guide pipe in parallel, emptying valves are respectively installed on the first emptying pipe and the second emptying pipe, check valves are further installed on the second emptying pipe, the emptying pipes are used for emptying the guide pipe, and backwashing water is discharged from the backwashing water outlet pipe.
In a further improved mode, the pure water pipe 13 is provided with a branch pipe, the tail end of the branch pipe is connected with the water tank 9, the branch pipe is provided with a water adding valve, the reverse osmosis membrane water is connected into the water tank 9 through the branch pipe, and the reverse osmosis membrane water can be circularly cleaned when the water adding valve is opened.
Specifically, the reverse osmosis membrane filter core comprises inlet, sealing washer, product water pipe, dense water passageway, membrane surface, diaphragm supporting layer, pure water collection passageway, diaphragm supporting layer, pure water export, dense water export. The reverse osmosis membrane is an artificial semipermeable membrane with certain characteristics and is made by simulating a biological semipermeable membrane. The membrane separation operation is to use pressure difference as driving force to separate solvent from solution, and applies pressure to feed liquid on one side of the membrane, when the pressure exceeds the osmotic pressure, the solvent will reverse osmosis against the natural osmosis direction, so as to obtain permeated solution on the low pressure side of the membrane, and concentrated solution on the high pressure side. The reverse osmosis membrane can intercept substances larger than 0.00001 micron, and can effectively intercept various inorganic ions, colloidal substances, bacteria and viruses in dissolved salt and organic matter water larger than 100 so as to obtain high-quality pure water.
The purification process of the invention:
(1) water enters a parallel membrane group I1 from a high-pressure pump 10 and sequentially enters a parallel membrane group II 2, a parallel membrane group III 3 and a parallel membrane group IV 4, pure water after filtration is discharged to a pure water pipe 13, concentrated water sequentially enters a single series membrane group I5, a series membrane group II 6, a series membrane group III 7 and a series membrane group IV 8 to be filtered for multiple times, the pure water after filtration of the series membrane group enters the pure water pipe 13, the concentrated water is discharged from a concentrated water pipe 11, and the quality of the treated water can be detected in real time by a TDS online detector and an electronic flowmeter in the process;
(2) after a period of filtration, the water tank 9 is filled with water by opening the water adding valve of the external water source, and then the water in the water tank 9 is injected into the reverse osmosis membrane by the backwashing pump 12 for cleaning. And the dirty water after the reverse osmosis membrane is cleaned is collected and discharged by a concentrated water outlet. As can be seen from fig. 4, water at the good water end of the reverse osmosis membrane can be connected into the water tank 9, and the water can be circularly cleaned when the water adding valve is opened;
(3) when the reverse osmosis membrane is stopped, a membrane core protective agent is added into the water tank 9 and is injected into the membrane core through the system for maintaining the reverse osmosis membrane.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A reverse osmosis membrane purification system comprising: belt cleaning device, reverse osmosis membrane group and high-pressure pump (10), its characterized in that: the novel solar water heater is characterized in that 12 reverse osmosis membranes are arranged in the reverse osmosis membrane group and distributed in a 3X4 matrix, the reverse osmosis membrane group comprises a parallel membrane group and a series membrane group, the parallel membrane group comprises a parallel membrane group I (1), a parallel membrane group II (2), a parallel membrane group III (3) and a parallel membrane group IV (4), and the series membrane group comprises a series membrane group I (5), a series membrane group II (6), a series membrane group III (7) and a series membrane group IV (8);
one end of each of the parallel membrane group and the serial membrane group is provided with a pure water outlet and a concentrated water outlet, the other end of each of the parallel membrane group and the serial membrane group is provided with a liquid inlet, the pure water outlets of the parallel membrane group and the serial membrane group are connected in parallel on a pure water pipe (13) through a guide pipe, the concentrated water outlet of the parallel membrane group IV (4) is connected with the liquid inlet of the serial membrane group I (5) through a guide pipe, the concentrated water outlets of the serial membrane group I (5), the serial membrane group II (6), the serial membrane group III (7) and the serial membrane group IV (8) are respectively connected to the serial membrane group II (6), the serial membrane group III (7), the serial membrane group IV (8) and the concentrated water pipe (11) through guide pipes, and the pure water pipe (13) is further provided with an electronic flowmeter and a TDS online detector;
the cleaning device comprises a water tank (9) and a backwashing pump (12), wherein a water inlet of the backwashing pump (12) is connected with the water tank (9) through a guide pipe, and a water outlet of the backwashing pump is connected with the parallel membrane group I (1) through a guide pipe.
2. The reverse osmosis membrane purification system of claim 1, wherein: parallelly connected membrane group one (1), parallelly connected membrane group two (2), parallelly connected membrane group three (3) and parallelly connected membrane group four (4) are provided with two reverse osmosis membranes respectively and arrange by supreme equidistance in proper order down, establish ties membrane group one (5), establish ties membrane group two (6), establish ties membrane group three (7) and establish ties membrane group four (8) by supreme one side of setting gradually in parallelly connected membrane group one (1), parallelly connected membrane group two (2), parallelly connected membrane group three (3) and parallelly connected membrane group four (4) down.
3. The reverse osmosis membrane purification system of claim 1, wherein: the water inlet of the high-pressure pump (10) is connected with the water tank (9) through a guide pipe, and the water outlet of the high-pressure pump (10) is connected with the liquid inlet pipe (14) and is connected with the liquid inlet of the parallel membrane group I (1) through the liquid inlet pipe (14).
4. The reverse osmosis membrane purification system of claim 1, wherein: the water tank (9) is filled with raw water and divides the raw water into two water paths through the high-pressure pump (10) and sequentially enters the parallel membrane group I (1), the parallel membrane group II (2), the parallel membrane group III (3) and the parallel membrane group IV (4).
5. The reverse osmosis membrane purification system of claim 1, wherein: an external water source water supplementing interface is installed on the water tank (9), and a water adding valve is arranged on the external water source water supplementing interface.
6. The reverse osmosis membrane purification system of claim 1, wherein: the backwashing water outlet pipe, the first emptying pipe, the second emptying pipe and the pressure gauge are connected to a guide pipe from the backwashing pump (12) to the first parallel membrane group (1), the backwashing water outlet pipe, the first emptying pipe and the second emptying pipe are connected to the guide pipe in parallel, emptying valves are respectively installed on the first emptying pipe and the second emptying pipe, and check valves are further installed on the second emptying pipe.
7. The reverse osmosis membrane purification system of claim 1, wherein: the pure water pipe (13) is provided with a branch pipe, the tail end of the branch pipe is connected with the water tank (9), and the branch pipe is provided with a water adding valve.
8. The reverse osmosis membrane purification system of claim 1, wherein: the reverse osmosis membrane filter element consists of a liquid inlet, a sealing ring, a water production pipe, a concentrated water channel, a membrane surface, a membrane supporting layer, a pure water collecting channel, a membrane supporting layer, a pure water outlet and a concentrated water outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110832225.3A CN113578053A (en) | 2021-07-22 | 2021-07-22 | Reverse osmosis membrane purification system |
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| CN202110832225.3A CN113578053A (en) | 2021-07-22 | 2021-07-22 | Reverse osmosis membrane purification system |
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Cited By (1)
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| CN119285043A (en) * | 2024-12-11 | 2025-01-10 | 南京宇硕膜科技有限公司 | A high-efficiency and energy-saving four-parallel and four-series ceramic membrane filtration system for wastewater treatment |
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Application publication date: 20211102 |