CN111498950A - Reverse osmosis water conservation and dilatation system - Google Patents
Reverse osmosis water conservation and dilatation system Download PDFInfo
- Publication number
- CN111498950A CN111498950A CN202010388960.5A CN202010388960A CN111498950A CN 111498950 A CN111498950 A CN 111498950A CN 202010388960 A CN202010388960 A CN 202010388960A CN 111498950 A CN111498950 A CN 111498950A
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- Prior art keywords
- reverse osmosis
- water
- saving
- tank
- pressure pump
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Links
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 115
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 239000002351 wastewater Substances 0.000 claims abstract description 42
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 239000008399 tap water Substances 0.000 claims abstract description 14
- 235000020679 tap water Nutrition 0.000 claims abstract description 14
- 238000012806 monitoring device Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 238000009287 sand filtration Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000011001 backwashing Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 238000009298 carbon filtering Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000277 virosome Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a reverse osmosis water-saving and capacity-expanding system, which comprises a primary reverse osmosis system and a secondary reverse osmosis system; wherein, the water inlet end of the second high-pressure pump is respectively connected with the water outlet pipe of the first-stage reverse osmosis concentrated wastewater tank and the carbon filter device. According to the reverse osmosis water-saving and capacity-expanding system, when the second high-pressure pump pumps water in the first-stage reverse osmosis concentrated wastewater tank into the second-stage reverse osmosis device for reverse osmosis treatment, the system can recycle the first-stage reverse osmosis concentrated wastewater, and the concentrated wastewater is subjected to water production through the second-stage reverse osmosis, so that the water consumption is saved; when the second high-pressure pump pumps the water in the tap water raw water tank into the secondary reverse osmosis device for reverse osmosis treatment, the system can realize water production capacity expansion and increase water yield; the water-saving mode and the expansion mode can be freely switched.
Description
Technical Field
The invention relates to the technical field of reverse osmosis, in particular to a reverse osmosis water-saving and capacity-expanding system.
Background
The reverse osmosis system consists of a reverse osmosis membrane (RO), a high-pressure pump and a security filter arranged for protecting the reverse osmosis membrane.
The basic operating principle of reverse osmosis is: the raw water is added to 6-20 kg of pressure by a special high-pressure water pump, so that the raw water permeates a reverse osmosis membrane with the pore diameter of only 0.0001 micron under the action of the pressure. Chemical ions and bacteria, fungi and virosomes can not pass through the wastewater, and only water molecules and solvents with the volume less than 0.0001 micron are allowed to pass through the wastewater. In the existing reverse osmosis design, both the first-stage concentrated wastewater and the second-stage concentrated wastewater are discharged outside, so that the waste of water resources exists.
Therefore, designing a reverse osmosis system to recover the first-stage reverse osmosis concentrated wastewater and produce water from the concentrated wastewater through the second-stage reverse osmosis, which is a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a reverse osmosis water-saving and capacity-expanding system aiming at the problem that water resources are wasted due to the fact that first-stage concentrated wastewater and second-stage concentrated wastewater in the existing reverse osmosis system are discharged outwards.
In order to achieve the purpose, the invention adopts the technical scheme that:
providing a reverse osmosis water-saving and capacity-expanding system, which comprises a primary reverse osmosis system and a secondary reverse osmosis system;
the primary reverse osmosis system comprises a tap water raw water tank, a raw water pump, a sand filter device, a carbon filter device, a first high-pressure pump and a primary reverse osmosis device which are sequentially connected; the pure water outlet end of the first-stage reverse osmosis device is connected with the pure water tank, and the wastewater outlet end of the first-stage reverse osmosis device is connected with the first-stage reverse osmosis concentrated wastewater tank;
the secondary reverse osmosis system comprises a second high-pressure pump and a secondary reverse osmosis device; the water inlet end of the second high-pressure pump is respectively connected with the primary reverse osmosis concentrated wastewater tank and the water outlet pipe of the carbon filter device; the water inlet end of the secondary reverse osmosis device is connected with the second high-pressure pump, the pure water outlet end is respectively connected with the pure water tank and the tap water raw water tank, and the wastewater outlet end is connected with the secondary reverse osmosis concentrated wastewater tank;
wherein the connections are all pipeline connections.
Furthermore, a pipeline connected between the pure water outlet end of the secondary reverse osmosis device and the pure water tank and the tap water raw water tank is a Y-shaped branch pipeline.
Further preferably, two branches of the Y-shaped branch pipeline are each provided with an automatic water quality monitoring device.
Furthermore, the reverse osmosis water-saving and capacity-expanding system further comprises a backwashing pump, and the water inlet end of the backwashing pump is connected with the second-stage reverse osmosis concentrated wastewater tank pipeline.
Further preferably, the water outlet end of the backwash pump is respectively connected with backwash pipe orifices of the sand filtration device and the carbon filtration device.
Furthermore, a first valve is arranged on a connecting pipeline of the water inlet end of the second high-pressure pump and the first-stage reverse osmosis concentrated wastewater tank.
Furthermore, a second valve is arranged on a connecting pipeline of the water inlet end of the second high-pressure pump and the carbon filter device.
Further, the reverse osmosis water-saving and capacity-expanding system has a water-saving mode and a capacity-expanding mode.
Further preferably, when in the water conservation mode, the first valve is open and the second valve is closed.
Further preferably, when in the expansion mode, the first valve is closed, and the second valve is opened.
By adopting the technical scheme, compared with the prior art, the invention has the following technical advantages:
the reverse osmosis water-saving and capacity-expanding system comprises a primary reverse osmosis system and a secondary reverse osmosis system, wherein the water inlet end of a second high-pressure pump is respectively connected with a primary reverse osmosis concentrated wastewater tank and the water outlet pipe of a carbon filter device; when the second high-pressure pump pumps water of the first-stage reverse osmosis concentrated wastewater tank into the second-stage reverse osmosis device for reverse osmosis treatment, the system can recycle the first-stage reverse osmosis concentrated wastewater, and the concentrated wastewater is produced through the second-stage reverse osmosis, so that the water consumption is saved; when the second high-pressure pump pumps the water in the tap water raw water tank into the secondary reverse osmosis device for reverse osmosis treatment, the system can realize water production capacity expansion and increase water yield; the water-saving mode and the expansion mode can be freely switched.
Drawings
FIG. 1 is a schematic view of a reverse osmosis water conservation and expansion system of the present invention;
wherein the reference numerals are:
a tap water raw water tank 1; a raw water pump 2; a sand filtration device 3; a carbon filter device 4; a first high-pressure pump 5; a first-stage reverse osmosis device 6; a pure water tank 7; a first-stage reverse osmosis concentrated wastewater tank 8; a secondary reverse osmosis unit 9; a second high-pressure pump 10; a secondary reverse osmosis concentrated wastewater tank 11; a backwash pump 12; an automatic water quality monitoring device 13; a first valve 14; a second valve 15.
Detailed Description
The present invention will be described in detail and specifically with reference to the following examples to facilitate better understanding of the present invention, but the following examples do not limit the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a reverse osmosis water-saving and capacity-expanding system, which includes a first-stage reverse osmosis system and a second-stage reverse osmosis system;
the primary reverse osmosis system comprises a tap water raw water tank 1, a raw water pump 2, a sand filter device 3, a carbon filter device 4, a first high-pressure pump 5 and a primary reverse osmosis device 6 which are connected in sequence; the pure water outlet end of the primary reverse osmosis device 6 is connected with a pure water tank 7, and the wastewater outlet end is connected with a primary reverse osmosis concentrated wastewater tank 8;
the secondary reverse osmosis system comprises a second high-pressure pump 9 and a secondary reverse osmosis device 10; the water inlet end of the second high-pressure pump 9 is respectively connected with the first-stage reverse osmosis concentrated wastewater tank 8 and the water outlet pipe of the carbon filter device 4; the water inlet end of the secondary reverse osmosis device 10 is connected with the second high-pressure pump 9, the pure water outlet end is respectively connected with the pure water tank 7 and the tap water raw water tank 1, and the wastewater outlet end is connected with a secondary reverse osmosis concentrated wastewater tank 11;
wherein the connections are all pipeline connections.
In the embodiment of the invention, a first valve 14 is arranged on a connecting pipeline between the water inlet end of the second high-pressure pump 9 and the primary reverse osmosis concentrated wastewater tank 8; and a second valve 15 is arranged on a connecting pipeline of the water inlet end of the second high-pressure pump 9 and the carbon filter device 4. The reverse osmosis water-saving and capacity-expanding system can realize free switching between a water-saving mode and a capacity-expanding mode, when the reverse osmosis water-saving and capacity-expanding system is in the water-saving mode, the first valve 14 is opened, the second valve 15 is closed, namely the second high-pressure pump pumps water of the first-stage reverse osmosis concentrated wastewater tank into the second-stage reverse osmosis device for reverse osmosis treatment, the water outlet conductance is less than or equal to 20us/cm, the system can recover the first-stage reverse osmosis concentrated wastewater, the concentrated wastewater is produced through the second-stage reverse osmosis, and the water consumption is saved; when the system is in the expansion mode, the first valve 14 is closed, the second valve 15 is opened, namely the second high-pressure pump pumps the water in the tap water raw water tank into the secondary reverse osmosis device for reverse osmosis treatment, the water outlet conductance is less than or equal to 10us/cm, the system can realize water production expansion, and the water yield is increased.
As a preferred embodiment, the pipeline connected between the pure water outlet end of the secondary reverse osmosis device 10 and the pure water tank 7 and the tap water raw water tank 1 is a Y-shaped branch pipeline; two branches of the Y-shaped branch pipeline are respectively provided with an automatic water quality monitoring device 13. The automatic water quality monitoring device 13 can automatically detect whether the water at the pure water outlet end of the secondary reverse osmosis device 10 is qualified, if so, the secondary reverse osmosis pure water is controlled to flow into the pure water tank 7, and if not, the secondary reverse osmosis pure water is controlled to flow into the tap water raw water tank 1.
As a preferred embodiment, the reverse osmosis water-saving and capacity-expanding system further comprises a backwash pump 12, and the water inlet end of the backwash pump 12 is connected with the secondary reverse osmosis concentrated wastewater tank 11 through a pipeline; the water outlet end of the backwashing pump 12 is respectively connected with the backwashing pipe openings of the sand filtering device 3 and the carbon filtering device 4, and the sand filtering device 3 and the carbon filtering device 4 can be reversely cleaned.
In the embodiment of the invention, the medicament used in the system can be automatically added, and each automatic linkage condition is stable in operation.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A reverse osmosis water-saving and capacity-expanding system is characterized by comprising a primary reverse osmosis system and a secondary reverse osmosis system;
the primary reverse osmosis system comprises a tap water raw water tank, a raw water pump, a sand filter device, a carbon filter device, a first high-pressure pump and a primary reverse osmosis device which are sequentially connected; the pure water outlet end of the first-stage reverse osmosis device is connected with the pure water tank, and the wastewater outlet end of the first-stage reverse osmosis device is connected with the first-stage reverse osmosis concentrated wastewater tank;
the secondary reverse osmosis system comprises a second high-pressure pump and a secondary reverse osmosis device; the water inlet end of the second high-pressure pump is respectively connected with the primary reverse osmosis concentrated wastewater tank and the water outlet pipe of the carbon filter device; the water inlet end of the secondary reverse osmosis device is connected with the second high-pressure pump, the pure water outlet end is respectively connected with the pure water tank and the tap water raw water tank, and the wastewater outlet end is connected with the secondary reverse osmosis concentrated wastewater tank;
wherein the connections are all pipeline connections.
2. The reverse osmosis water-saving and flash-expanding system of claim 1, wherein the pipeline connecting the pure water outlet of the secondary reverse osmosis device with the pure water tank and the tap water raw water tank is a Y-branch pipeline.
3. A reverse osmosis water-saving and expansion system according to claim 2, wherein the two branches of the Y-shaped branch line are each provided with an automatic water quality monitoring device.
4. The reverse osmosis water-saving and volume-expanding system as claimed in claim 1, further comprising a backwash pump, wherein the water inlet end of the backwash pump is connected with the secondary reverse osmosis concentrated wastewater tank pipeline.
5. The reverse osmosis water-saving and volume-expanding system of claim 4, wherein the backwash pump water outlet end is connected with backwash pipe orifices of the sand filtration device and the carbon filtration device respectively.
6. The reverse osmosis water-saving and flash expansion system of claim 1, wherein a first valve is arranged on a connection pipeline between the water inlet end of the second high pressure pump and the primary reverse osmosis concentrated wastewater tank.
7. The reverse osmosis water-saving and volume-expanding system as claimed in claim 1, wherein a second valve is disposed on a connecting pipeline between the water inlet end of the second high pressure pump and the carbon filter device.
8. The reverse osmosis water conservation and expansion system of claim 1 wherein the reverse osmosis water conservation and expansion system has a water conservation mode and an expansion mode.
9. The reverse osmosis water-saving and flash expansion system of claim 8, wherein the first valve is open and the second valve is closed when in the water-saving mode.
10. The reverse osmosis water-saving and flash expansion system of claim 8, wherein the first valve is closed and the second valve is open when in the flash expansion mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010388960.5A CN111498950A (en) | 2020-05-09 | 2020-05-09 | Reverse osmosis water conservation and dilatation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010388960.5A CN111498950A (en) | 2020-05-09 | 2020-05-09 | Reverse osmosis water conservation and dilatation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111498950A true CN111498950A (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010388960.5A Pending CN111498950A (en) | 2020-05-09 | 2020-05-09 | Reverse osmosis water conservation and dilatation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111498950A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591444A (en) * | 2015-02-10 | 2015-05-06 | 淄博绿洲环境工程有限公司 | Reverse osmosis concentrated water treatment technique |
| CN105923810A (en) * | 2016-06-15 | 2016-09-07 | 王寒 | Dual-membrane dual-core cascaded slightly-concentrated water reverse osmosis device and control method thereof |
| JP2018171577A (en) * | 2017-03-31 | 2018-11-08 | 栗田工業株式会社 | Pure water production method and device |
| CN213085536U (en) * | 2020-05-09 | 2021-04-30 | 中粮融氏生物科技有限公司 | Reverse osmosis water-saving and capacity-expanding device |
-
2020
- 2020-05-09 CN CN202010388960.5A patent/CN111498950A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591444A (en) * | 2015-02-10 | 2015-05-06 | 淄博绿洲环境工程有限公司 | Reverse osmosis concentrated water treatment technique |
| CN105923810A (en) * | 2016-06-15 | 2016-09-07 | 王寒 | Dual-membrane dual-core cascaded slightly-concentrated water reverse osmosis device and control method thereof |
| JP2018171577A (en) * | 2017-03-31 | 2018-11-08 | 栗田工業株式会社 | Pure water production method and device |
| CN213085536U (en) * | 2020-05-09 | 2021-04-30 | 中粮融氏生物科技有限公司 | Reverse osmosis water-saving and capacity-expanding device |
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