CN214182579U - Reverse osmosis system - Google Patents
Reverse osmosis system Download PDFInfo
- Publication number
- CN214182579U CN214182579U CN202023198456.3U CN202023198456U CN214182579U CN 214182579 U CN214182579 U CN 214182579U CN 202023198456 U CN202023198456 U CN 202023198456U CN 214182579 U CN214182579 U CN 214182579U
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- reverse osmosis
- cleaning
- osmosis system
- discharge pipe
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- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- 238000004140 cleaning Methods 0.000 claims abstract description 107
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims 2
- 238000005406 washing Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000002000 scavenging effect Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 14
- 230000002378 acidificating effect Effects 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model provides a reverse osmosis system belongs to water treatment technical field, including reverse osmosis system one section, reverse osmosis system two-stage process, washing case, scavenging pump and heating device. The cleaning tank is used for storing cleaning liquid; the cleaning pump is connected with the cleaning box and used for pumping the cleaning liquid in the cleaning box; the heating device is connected with the cleaning pump and used for heating the cleaning liquid pumped by the cleaning pump, and the heating device can be selectively communicated with the first section of the water inlet pipe or the second section of the water inlet pipe; the concentrated water discharge pipe section can be selectively communicated with the water inlet pipe section or the cleaning box; the concentrated water discharge pipe section can be selectively communicated with the water inlet pipe section or the cleaning box. The utility model provides a reverse osmosis system can adopt different modes to wash to reverse osmosis system one section and the different pollution condition of reverse osmosis system two-stage section and pollution kind, full play washing liquid performance, improved the cleaning efficiency.
Description
Technical Field
The utility model belongs to the technical field of water treatment, more specifically say, relate to a reverse osmosis system.
Background
Reverse osmosis systems are commonly used in reclaimed water reuse systems, purified water systems, and seawater desalination systems. When the reverse osmosis system is applied to different environments, the water quality of inlet water is different. Microorganisms are bred in the reverse osmosis equipment in the operation process, and inorganic salt ions in water are precipitated due to concentration exceeding the solubility product of the inorganic salt ions to form calcium carbonate scale, calcium sulfate scale, metal oxide scale, silicon sediment and the like. When the reverse osmosis membrane is operated for a long time, scaling becomes more serious, the flux of the reverse osmosis membrane can be recovered only by chemical cleaning, and if the membrane is polluted seriously, the service life of the reverse osmosis membrane is shortened. The reverse osmosis devices used in any field are required to be cleaned, but the nature and the pollution speed of pollutants are different under different water supply conditions, so that the cleaning period is different.
At present, reverse osmosis systems are mainly cleaned by acid washing and alkali washing, and are washed by reverse osmosis produced water after cleaning. The existing cleaning system usually adopts the same medicament to clean the first section and the second section of the reverse osmosis system and enables the medicament to pass through the first section and the second section of the reverse osmosis system in sequence, so that the cleaning efficiency is low and the medicament consumption is relatively high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reverse osmosis system can select different washing modes in order to improve the cleaning efficiency.
In order to achieve the above object, the utility model adopts the following technical scheme: providing a reverse osmosis system comprising:
a reverse osmosis system section, which is provided with a water inlet pipe section, a concentrated water discharge pipe section and a produced water discharge pipe section;
the reverse osmosis system second section is provided with a water inlet pipe second section, a concentrated water discharge pipe second section and a produced water discharge pipe second section;
the cleaning tank is used for storing cleaning liquid;
the cleaning pump is connected with the cleaning tank and used for pumping the cleaning liquid in the cleaning tank;
the heating device is connected with the cleaning pump and used for heating the cleaning liquid pumped by the cleaning pump, wherein the heating device can be selectively communicated with the first section of the water inlet pipe or the second section of the water inlet pipe; the concentrated water discharge pipe section can be selectively communicated with the water inlet pipe section or the cleaning box; the concentrated water discharge pipe section can be selectively communicated with the water inlet pipe section or the cleaning box.
Further, the mass percentage concentration of the cleaning liquid is 0.1-5%.
Further, the heating device is an electric heater or a heat exchanger.
Further, the heating temperature of the cleaning liquid is 30-45 ℃.
Furthermore, a first valve is arranged between the heating device and the water inlet pipe section, and a second valve is arranged between the heating device and the water inlet pipe section; a third valve is arranged between the first section of the concentrated water discharge pipe and the second section of the water inlet pipe, and a fourth valve is arranged between the first section of the concentrated water discharge pipe and the cleaning box; a fifth valve is arranged between the concentrated water discharge pipe section and the water inlet pipe section, and a sixth valve is arranged between the concentrated water discharge pipe section and the cleaning box.
Further, the first valve, the second valve, the third valve, the fourth valve, the fifth valve and the sixth valve are solenoid valves.
Further, the first valve, the second valve, the third valve, the fourth valve, the fifth valve and the sixth valve are manual valves.
The utility model provides a reverse osmosis system's beneficial effect lies in: compared with the prior art, the utility model discloses reverse osmosis system can adopt different modes to one section and the different pollution condition of reverse osmosis system two-stage section and pollution kind to wash, can realize that the washing liquid contacts heavy pollution part at first, contacts light pollution part again, full play washing liquid performance, improved the cleaning efficiency, can practice thrift the washing liquid, improve the cleaning performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a reverse osmosis system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first section of a reverse osmosis system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a reverse osmosis system second stage according to an embodiment of the present invention.
In the figure: 1. a reverse osmosis system section; 11. a section of water inlet pipe; 12. a concentrated water discharge pipe section; 13. a water production discharge pipe section; 2. a reverse osmosis system second section; 21. a second water inlet pipe section; 22. a concentrated water discharge pipe section; 23. a second section of a produced water discharge pipe; 3. a cleaning tank; 4. cleaning the pump; 5. a heating device; 61. a first valve; 62. a second valve; 63. a third valve; 64. a fourth valve; 65. a fifth valve; 66. a sixth valve; 7. and a total produced water discharge pipe.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
Referring to fig. 1 to 3, a reverse osmosis system according to the present invention will now be described. The reverse osmosis system comprises a reverse osmosis system section 1, a reverse osmosis system section 2, a cleaning box 3, a cleaning pump 4 and a heating device 5. Wherein the arrows in figure 1 indicate the direction of water flow in the pipe.
The reverse osmosis system first stage 1 and the reverse osmosis system second stage 2 are existing equipment of the reverse osmosis system. The reverse osmosis system section 1 has a water inlet pipe section 11, a concentrate discharge pipe section 12 and a produced water discharge pipe section 13. After the water to be treated enters the reverse osmosis system section 1 from the water inlet pipe section 11, the low-concentration water is discharged from the water production discharge pipe section 13 through the reverse osmosis membrane under the pressure, and the high-concentration water containing organic matters and inorganic matters is discharged from the concentrated water discharge pipe section 12. The reverse osmosis system second stage 2 has a water inlet pipe second stage 21, a concentrated water discharge pipe second stage 22, and a produced water discharge pipe second stage 23. The concentrated water discharged from the concentrated water discharge pipe section 12 can enter the reverse osmosis system section 2 from the water inlet pipe section 21, the low-concentration water can permeate the reverse osmosis membrane to be discharged from the water production discharge pipe section 23 under the action of pressure, and the high-concentration water containing organic matters and inorganic matters can be discharged from the concentrated water discharge pipe section 22.
The cleaning tank 3 is used for storing acidic or alkaline cleaning liquid. The cleaning pump 4 is connected with the cleaning tank 3 and is used for pumping the cleaning liquid in the cleaning tank 3. The heating device 5 is connected with the cleaning pump 4 and is used for heating the cleaning liquid pumped by the cleaning pump 4. The heating device 5 can be selectively communicated with the water inlet pipe section 11 or the water inlet pipe section 21; the concentrated water discharge pipe section 12 can be selectively communicated with the water inlet pipe section 21 or the cleaning box 3; the concentrate discharge pipe section 22 can be selectively communicated with the water inlet pipe section 11 or the cleaning tank 3.
The pollution of reverse osmosis membranes in reverse osmosis systems mainly comes from two aspects, namely organic matter and microorganism pollution and inorganic scale pollution. The first section 1 of the reverse osmosis system mainly bears organic pollution, and the second section 2 of the reverse osmosis system mainly bears inorganic scale pollution. Aiming at different pollution conditions of different pollutants, two modes are selected to clean the polluted reverse osmosis membrane.
When the reverse osmosis membrane is mainly contaminated with organic substances, an alkaline cleaning liquid is filled in the cleaning tank 3, the cleaning liquid is conveyed to the heating device 5 by the cleaning pump 4, and the cleaning liquid is heated by the heating device 5. At this time, the selective heating device 5 is communicated with the first section 11 of the water inlet pipe, the first section 12 of the concentrated water discharge pipe is communicated with the second section 21 of the water inlet pipe, and the second section 22 of the concentrated water discharge pipe is communicated with the cleaning tank 3. The cleaning solution firstly reacts with organic matters in the first section 1 of the reverse osmosis system to clean pollutants on the reverse osmosis membrane, meanwhile, the effective concentration of the alkaline cleaning solution is partially consumed, then the cleaning solution enters the second section 2 of the reverse osmosis system through the first section 12 of the concentrated water discharge pipe and the second section 21 of the water inlet pipe, the organic pollution on the reverse osmosis membrane in the second section 2 of the reverse osmosis system is not serious, so the effective concentration of the alkaline cleaning solution is reduced, but the organic pollution in the second section 2 of the reverse osmosis system can be effectively cleaned, the cleaning solution flows back to the cleaning tank 3 from the second section 22 of the concentrated water discharge pipe of the second section 2 of the reverse osmosis system, and then the cleaning solution is repeatedly circulated until the expected cleaning effect is achieved. The mode can realize that the cleaning solution firstly contacts the heavy polluted part and then contacts the light polluted part, thereby fully playing the performance of the cleaning solution and improving the cleaning efficiency. In this way, when the concentrated water discharge pipe section 12 is selectively communicated with the cleaning tank 3, only the reverse osmosis system section 1 can be cleaned.
When the reverse osmosis membrane is mainly contaminated with inorganic contaminants, an acidic cleaning solution is filled in the cleaning tank 3, the cleaning solution is conveyed to the heating device 5 by the cleaning pump 4, and the cleaning solution is heated by the heating device 5. At this time, the selective heating device 5 is communicated with the water inlet pipe section 21, the concentrated water discharge pipe section 12 is communicated with the cleaning tank 3, and the concentrated water discharge pipe section 22 is communicated with the water inlet pipe section 11. The cleaning solution firstly reacts with inorganic matters in the second section 2 of the reverse osmosis system to clean pollutants on the reverse osmosis membrane, meanwhile, the effective concentration of the acidic cleaning solution is partially consumed, then the cleaning solution enters the first section 1 of the reverse osmosis system through the second section 22 of the concentrated water discharge pipe and the first section 11 of the water inlet pipe, the inorganic pollution on the reverse osmosis membrane in the first section 1 of the reverse osmosis system is not serious, so the effective concentration of the acidic cleaning solution is reduced, but the inorganic pollution in the first section 1 of the reverse osmosis system can be effectively cleaned, the cleaning solution flows back to the cleaning tank 3 from the first section 12 of the concentrated water discharge pipe of the first section 1 of the reverse osmosis system, and then the cleaning solution is repeatedly circulated until the expected cleaning effect is achieved. The mode can realize that the cleaning solution firstly contacts the heavy polluted part and then contacts the light polluted part, thereby fully playing the performance of the cleaning solution and improving the cleaning efficiency. In this way, when the concentrated water discharge pipe section 22 is selectively communicated with the cleaning tank 3, it is also possible to clean only the reverse osmosis system section 2.
According to the above description, the utility model provides a reverse osmosis system, compared with the prior art, can adopt different modes to reverse osmosis system one section 1 and the different pollution condition of reverse osmosis system two-stage section 2 and pollution kind and wash, can realize that the washing liquid contacts heavy pollution part at first, contacts light pollution part again, full play washing liquid performance, improved the cleaning efficiency, can practice thrift the washing liquid, improve the cleaning performance.
In an embodiment of the present invention, the acidic and alkaline cleaning solutions preferably have a concentration of 0.1% to 5% by mass. The heating device 5 may be an electric heater or a heat exchanger. The heating temperature of the cleaning liquid is 30-45 ℃.
As can be seen from fig. 1, the product water discharge line section 13 of the first section 1 of the reverse osmosis system and the product water discharge line section 23 of the second section 2 of the reverse osmosis system may be connected in parallel to the total product water discharge line 7. In the present embodiment, a first valve 61 is provided between the heating device 5 and the water inlet pipe segment 11, and a second valve 62 is provided between the heating device 5 and the water inlet pipe segment 21; a third valve 63 is arranged between the first section 12 of the concentrated water discharge pipe and the second section 21 of the water inlet pipe, and a fourth valve 64 is arranged between the first section 12 of the concentrated water discharge pipe and the cleaning box 3; a fifth valve 65 is arranged between the second concentrated water discharge pipe section 22 and the first water inlet pipe section 11, and a sixth valve 66 is arranged between the second concentrated water discharge pipe section 22 and the cleaning tank 3. By opening or closing these valves, selective communication of the heating device 5, the concentrate discharge pipe section 12, and the concentrate discharge pipe section 22 can be achieved. These valves may be manual valves or electromagnetic valves. It should be noted that in other embodiments of the present invention, the selective communication between the heating device 5, the first section 12 of the concentrated water discharge pipe and the second section 22 of the concentrated water discharge pipe can be realized by other valves such as a reversing valve.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A reverse osmosis system, comprising:
a reverse osmosis system section, which is provided with a water inlet pipe section, a concentrated water discharge pipe section and a produced water discharge pipe section;
the reverse osmosis system second section is provided with a water inlet pipe second section, a concentrated water discharge pipe second section and a produced water discharge pipe second section;
the cleaning tank is used for storing cleaning liquid;
the cleaning pump is connected with the cleaning tank and used for pumping the cleaning liquid in the cleaning tank;
a heating device connected with the cleaning pump and used for heating the cleaning liquid pumped by the cleaning pump, wherein,
the heating device can be selectively communicated with the first section of the water inlet pipe or the second section of the water inlet pipe; the concentrated water discharge pipe section can be selectively communicated with the water inlet pipe section or the cleaning box; the concentrated water discharge pipe section can be selectively communicated with the water inlet pipe section or the cleaning box.
2. The reverse osmosis system of claim 1, wherein the cleaning fluid is present at a concentration of 0.1% to 5% by weight.
3. The reverse osmosis system of claim 1, wherein the heating device is an electric heater or a heat exchanger.
4. The reverse osmosis system of claim 1, wherein the heating device is a heat exchanger.
5. The reverse osmosis system of claim 1, wherein the cleaning fluid is heated to a temperature of 30 ℃ to 45 ℃.
6. The reverse osmosis system of claim 1, wherein a first valve is disposed between the heating device and the first section of the inlet conduit and a second valve is disposed between the heating device and the second section of the inlet conduit; a third valve is arranged between the first section of the concentrated water discharge pipe and the second section of the water inlet pipe, and a fourth valve is arranged between the first section of the concentrated water discharge pipe and the cleaning box; a fifth valve is arranged between the concentrated water discharge pipe section and the water inlet pipe section, and a sixth valve is arranged between the concentrated water discharge pipe section and the cleaning box.
7. The RO system of claim 6, wherein the first, second, third, fourth, fifth, and sixth valves are solenoid valves.
8. The RO system of claim 6, wherein the first, second, third, fourth, fifth, and sixth valves are manual valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023198456.3U CN214182579U (en) | 2020-12-25 | 2020-12-25 | Reverse osmosis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023198456.3U CN214182579U (en) | 2020-12-25 | 2020-12-25 | Reverse osmosis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214182579U true CN214182579U (en) | 2021-09-14 |
Family
ID=77657211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023198456.3U Active CN214182579U (en) | 2020-12-25 | 2020-12-25 | Reverse osmosis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214182579U (en) |
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2020
- 2020-12-25 CN CN202023198456.3U patent/CN214182579U/en active Active
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