CN220078716U - Be applied to high salt waste water anti-pollution reverse osmosis unit - Google Patents
Be applied to high salt waste water anti-pollution reverse osmosis unit Download PDFInfo
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- CN220078716U CN220078716U CN202222569306.1U CN202222569306U CN220078716U CN 220078716 U CN220078716 U CN 220078716U CN 202222569306 U CN202222569306 U CN 202222569306U CN 220078716 U CN220078716 U CN 220078716U
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- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 27
- 239000002351 wastewater Substances 0.000 title claims abstract description 19
- 150000003839 salts Chemical class 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 138
- 239000012528 membrane Substances 0.000 claims abstract description 106
- 238000004519 manufacturing process Methods 0.000 claims description 36
- 239000012466 permeate Substances 0.000 claims description 15
- 239000008213 purified water Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 6
- 230000004907 flux Effects 0.000 claims description 5
- 238000010612 desalination reaction Methods 0.000 claims description 4
- 239000013535 sea water Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 description 8
- 239000012141 concentrate Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000012267 brine Substances 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses an anti-pollution reverse osmosis device applied to high-salinity wastewater, which comprises a first processing unit, a second processing unit and a third processing unit, wherein the first processing unit, the second processing unit and the third processing unit are connected through connecting pipelines, the first processing unit is arranged as a first section of membrane assembly, the second processing unit is arranged as a second section of membrane assembly, and the third processing unit is arranged as a third section of membrane assembly; the water pump is connected with the security filter through the connecting pipeline, the security filter is connected with the high-pressure pump through the connecting pipeline, the third section of membrane assembly is connected with the return pipeline, and the return pipeline is connected to the total water inlet pipeline before the water pump.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to an anti-pollution reverse osmosis device applied to high-salt wastewater.
Background
In the water treatment industry, reverse osmosis membranes are very mature brine producing equipment, and the principle is that a high-pressure pump provides osmotic pressure higher than that of natural conditions on the thin and thick sides of the membrane to form reverse osmosis, so that most of soluble salts and water are separated.
The existing reverse osmosis membrane has the problems of high energy consumption, poor product water quality, easy pollution and the like for purifying high-salt wastewater. Current solutions to this problem have been to add energy recovery devices, to add multiple membrane systems, to frequently perform chemical cleaning or to replace new membrane elements. However, these solutions are accompanied by problems such as high investment costs and poor productivity. Because, a new anti-pollution reverse osmosis device needs to be designed to fundamentally solve the above problems.
Disclosure of Invention
The utility model aims to provide an anti-pollution reverse osmosis device applied to high-salt wastewater so as to solve the problems in the background technology.
The utility model aims at realizing the following technical scheme: the anti-pollution reverse osmosis device applied to the high-salinity wastewater comprises a first treatment unit, a second treatment unit and a third treatment unit, wherein the first treatment unit, the second treatment unit and the third treatment unit are connected through connecting pipelines, the first treatment unit is arranged as a first section of membrane assembly, the second treatment unit is arranged as a second section of membrane assembly, and the third treatment unit is arranged as a third section of membrane assembly;
the water pump is connected with the security filter through the connecting pipeline, the security filter is connected with the high-pressure pump through the connecting pipeline, the third section of membrane assembly is connected with the return pipeline, and the return pipeline is connected to the total water inlet pipeline before the water pump.
Further, the high-pressure pump is connected with the first section membrane assembly through a connecting pipeline, the first section membrane assembly is provided with two pipelines, namely a first section water production pipeline a and a first section concentrated water pipeline b, the first section water production pipeline a is communicated with a total water production pipeline through a connecting pipe, the first section concentrated water pipeline b is connected with the second section membrane assembly through a booster pump, the second section membrane assembly is provided with two pipelines, namely a second section water production pipeline c and a second section concentrated water pipeline d, and the second section concentrated water pipeline d is connected with the third section membrane assembly through a connecting pipe.
Further, the first section of water production pipeline a is internally circulated with purified water which permeates through a membrane, and the first section of concentrated water pipe b is internally circulated with concentrated solution which does not permeate through the membrane;
the first section of water production pipeline a is communicated with the total water production pipe through a connecting pipeline.
Further, the second section of water production pipeline c is internally circulated with purified water which permeates through a membrane, and the second section of concentrated water pipeline d is internally circulated with concentrated solution which does not permeate through the membrane;
and the second section of water production pipeline c is communicated with the total water production pipe through a connecting pipeline.
Further, reverse osmosis membranes of the first section membrane assembly and the second section membrane assembly adopt anti-pollution sea water desalination membranes.
Further, the reverse osmosis membrane of the third section of membrane assembly adopts a high flux low pressure membrane, and the third section of membrane assembly is connected with a concentrated water discharge pipeline.
Further, the lift of a booster pump arranged between the first section of membrane component and the second section of membrane component is 120m.
Further, the filtering precision of the water outlet connection cartridge filter of the water supply pump is 5 mu m.
Further, the lift of the feed water pump is 30m, and the flow rate of the feed water pump is 1.25 times of the total water production demand.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model is provided with the first processing unit, the second processing unit and the third processing unit which are three sections, and the third section adopts the high flux low pressure membrane, thereby reducing the water inlet pressure requirement of the third section, avoiding the arrangement of a booster pump between the sections before the second section membrane and the third section membrane, and saving the total power consumption of the system by 10 percent;
the utility model dilutes the salt concentration of the total inflow water through the reflux of the third section of the produced water, particularly reduces the inflow water hardness, enhances the quality of the produced water of the whole device, reduces the pollution of high-concentration brine to the membrane element, and prolongs the service life of the device element.
Drawings
FIG. 1 is a schematic diagram of the overall connection of the present utility model.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1, the anti-pollution reverse osmosis device applied to the high-salinity wastewater comprises a first processing unit, a second processing unit and a third processing unit, wherein the first processing unit, the second processing unit and the third processing unit are connected through connecting pipelines, the first processing unit is arranged as a first section of membrane assembly 4, the second processing unit is arranged as a second section of membrane assembly 8, and the third processing unit is arranged as a third section of membrane assembly 11;
the first treatment unit is connected with a total water inlet pipeline 15, the total water inlet pipeline 15 and a connecting pipeline of the first treatment unit are provided with a water feed pump 1, a cartridge filter 2 and a high-pressure pump 3, the water pump 1 is connected with the cartridge filter 2 through the connecting pipeline, the cartridge filter 2 is connected with the high-pressure pump 3 through the connecting pipeline, a third section of membrane assembly 11 is connected with a return pipeline 12, and the return pipeline 12 is connected to the total water inlet pipeline 15 before the water feed pump 1.
In a further preferred embodiment of the present utility model, the high-pressure pump 3 is connected to the first section membrane assembly 4 through a connecting pipe, the first section membrane assembly 4 is provided with two pipelines, namely a first section water production pipeline a5 and a first section concentrated water pipeline b6, the first section water production pipeline a5 is communicated with the total water production pipeline 14 through a connecting pipe, the first section concentrated water pipeline b6 is connected with the second section membrane assembly 8 through a booster pump 7, the second section membrane assembly 8 is provided with two pipelines, namely a second section water production pipeline c9 and a second section concentrated water pipeline d10, and the second section concentrated water pipeline d10 is connected with the third section membrane assembly 11 through a connecting pipe.
In a further preferred embodiment of the present utility model, the first stage water producing pipeline a5 is filled with purified water that permeates through a membrane, and the first stage concentrate pipe b6 is filled with concentrate that does not permeate through the membrane;
the first section of water production pipeline a5 is communicated with the total water production pipe 14 through a connecting pipeline.
In a further preferred embodiment of the present utility model, the second stage water producing pipeline c9 is circulated with purified water passing through a membrane, and the second stage concentrated water pipeline d10 is circulated with concentrated solution not passing through the membrane;
the second section of water production pipeline c9 is communicated with the total water production pipe 14 through a connecting pipeline.
In a further preferred embodiment of the present utility model, reverse osmosis membranes of the first-stage membrane module 4 and the second-stage membrane module 8 are anti-pollution sea water desalination membranes.
In a further preferred embodiment of the present utility model, a reverse osmosis membrane of the third-stage membrane module 11 adopts a high flux low pressure membrane, and a concentrated water discharge pipeline 13 is connected to the third-stage membrane module 11.
In a further preferred embodiment of the present utility model, the lift of the booster pump 7 arranged between the first-stage membrane module 4 and the second-stage membrane module 8 is 120m.
In a further preferred embodiment of the present utility model, the filtering accuracy of the water outlet connection cartridge filter 2 of the water feed pump 1 is 5 μm.
In a further preferred embodiment of the present utility model, the lift of the feed pump 1 is 30m, and the flow rate of the feed pump 1 is 1.25 times of the total water production demand.
The high-salt wastewater after filtration and turbidity removal is pressurized by the water supply pump, and the filter has the function of protecting the membrane element by the cartridge filter. Then the water enters the first section of membrane through a high-pressure pump, the permeation side of the membrane is converged into a water producing pipe, and the non-permeation side concentrated water enters the second section of membrane through an interstage booster pump; the permeation side of the second section of membrane is converged into a water producing pipe, and the non-permeation side concentrated water directly enters the third section of membrane under the action of residual pressure; the permeate side of the third section of membrane flows back to the front of the feed pump, and the non-permeate side concentrated water is discharged out of the system.
(1) The lift of the water supply pump is 30m, and the flow is 1.25 times of the water demand of the device;
(2) When the salt content of the inlet water is lower than 25000 mu s/cm, the recovery rate of the device is higher than 80%;
(3) The water outlet of the water supply pump is connected with a cartridge filter, and the filtering precision of the filter element is 5 mu m;
(4) The outlet of the cartridge filter is connected with a high-pressure pump, and the inlet and outlet of the high-pressure pump are provided with pressure switches. The flow rate of the high-pressure pump is the same as that of the water supply pump, and when the salt content of the inlet water is lower than 25000 mu s/cm, the lift of the high-pressure pump is not higher than 310m;
(5) The first and second reverse osmosis membranes adopt anti-pollution sea water desalination membranes, and the third section adopts a high flux low pressure membrane;
(6) An intersegment booster pump is arranged between the first section and the second section, and the lift is 120m;
(7) An inter-section booster pump is not required to be arranged between the second section and the third section, so that the running power is reduced, the energy-saving effect is achieved, and the electricity consumption is reduced by 10%;
(8) The first and second sections of produced water are converged into the produced water pipe for production, and the third section of produced water flows back to the front of the water feeding pump, so that the effect of diluting and feeding water is achieved, and the effects of improving quality of produced water and reducing pollution of membrane elements are achieved.
The working principle of the utility model is as follows: "
Step a: raw water enters a device boundary region through a main water inlet pipeline 15, is pressurized to 3bar through a water supply pump 1, and passes through a cartridge filter 2 with the filtering precision of 5 mu m to prevent the infiltrated impurities from fouling and scratching membrane elements;
step b: the outlet water of the cartridge filter 2 is pressurized by the high-pressure pump 3, the specific pressurizing pressure is related to the conductivity of the high-salt wastewater, and when the salt content of the inlet water is lower than 25000 mu s/cm, the lift of the high-pressure pump is not higher than 310m. After being pressurized, the water enters the first-stage membrane component 4, purified water penetrating through the membrane is converged into the total water production pipe 14 from the first-stage water production pipeline 5, and concentrated solution not penetrating through the membrane enters the inter-stage booster pump 7 from the first-stage concentrated water pipe 6 for pressure supplementation;
step c: the pressure supplement value of the interstage booster pump is 12bar, the pressurized water enters the second-stage membrane assembly 8, the purified water which permeates the membrane is gathered to the total water production pipe 14 from the second-stage water production pipeline 9, and the concentrated solution which does not permeate the membrane enters the third-stage membrane assembly 11 from the second-stage concentrated water pipe 10 for final recovery and purification.
Step d: the third section of membrane assembly 11 has the function of diluting the concentration of the inlet water before the purified water flows back to the water feed pump 1 through the return pipeline 12, thereby reducing the pollution of the membrane and improving the quality of the final produced water. The concentrate which does not permeate the membrane is discharged from the concentrate discharge line 13 to the outside of the boundary region.
Step e: the clean produced water of the first section membrane module 4 and the second section membrane module 8 is used as the total produced water of the system and is connected to a water using point through a total produced water pipe 14.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. Be applied to high salt waste water antipollution reverse osmosis unit, its characterized in that: the device comprises a first processing unit, a second processing unit and a third processing unit, wherein the first processing unit, the second processing unit and the third processing unit are connected through connecting pipelines, the first processing unit is arranged as a first section of membrane assembly (4), the second processing unit is arranged as a second section of membrane assembly (8), and the third processing unit is arranged as a third section of membrane assembly (11);
the water supply device is characterized in that the first processing unit is connected with a total water inlet pipeline (15), the total water inlet pipeline (15) is connected with a water supply pump (1), a security filter (2) and a high-pressure pump (3) which are arranged on a connecting pipeline of the first processing unit, the water pump (1) is connected with the security filter (2) through a connecting pipeline, the security filter (2) is connected with the high-pressure pump (3) through the connecting pipeline, a third section of membrane assembly (11) is connected with a return pipeline (12), and the return pipeline (12) is connected to the total water inlet pipeline (15) before the water supply pump (1).
2. The anti-pollution reverse osmosis device applied to high-salt wastewater according to claim 1, wherein: the high-pressure pump (3) is connected with the first section membrane component (4) through a connecting pipeline, the first section membrane component (4) is provided with two pipelines, namely a first section water production pipeline a (5) and a first section concentrated water pipeline b (6), the first section water production pipeline a (5) is communicated with a total water production pipeline (14) through a connecting pipe, the first section concentrated water pipeline b (6) is connected with the second section membrane component (8) through a booster pump (7), the second section membrane component (8) is provided with two pipelines, namely a second section water production pipeline c (9) and a second section concentrated water pipeline d (10), and the second section concentrated water pipeline d (10) is connected with the third section membrane component (11) through a connecting pipe.
3. The anti-pollution reverse osmosis device for high-salt wastewater according to claim 2, wherein: the first section of water production pipeline a (5) is internally circulated with purified water which permeates through a membrane, and the first section of concentrated water pipeline b (6) is internally circulated with concentrated solution which does not permeate through the membrane;
the first section of water production pipeline a (5) is communicated with the total water production pipe (14) through a connecting pipeline.
4. A device for anti-pollution reverse osmosis for high-salinity wastewater according to claim 3, wherein: the second section of water production pipeline c (9) is internally circulated with purified water which permeates through a membrane, and the second section of concentrated water pipeline d (10) is internally circulated with concentrated solution which does not permeate through the membrane;
the second section of water production pipeline c (9) is communicated with the total water production pipe (14) through a connecting pipeline.
5. A device for anti-pollution reverse osmosis for high-salinity wastewater according to claim 3, wherein: reverse osmosis membranes of the first section membrane component (4) and the second section membrane component (8) adopt anti-pollution sea water desalination membranes.
6. The anti-pollution reverse osmosis device for high-salinity wastewater according to claim 5, wherein: the reverse osmosis membrane of the third section membrane assembly (11) adopts a high flux low pressure membrane, and the third section membrane assembly (11) is connected with a concentrated water discharge pipeline (13).
7. The anti-pollution reverse osmosis device for high-salinity wastewater according to claim 4, wherein: the lift of a booster pump (7) arranged between the first section membrane component (4) and the second section membrane component (8) is 120m.
8. The anti-pollution reverse osmosis device applied to high-salt wastewater according to claim 1, wherein: the water outlet of the water supply pump (1) is connected with a cartridge filter (2), and the filtering precision is 5 mu m.
9. The anti-pollution reverse osmosis device applied to high-salt wastewater according to claim 1, wherein: the lift of the feed pump (1) is 30m, and the flow of the feed pump (1) is 1.25 times of the total water production demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222569306.1U CN220078716U (en) | 2022-09-28 | 2022-09-28 | Be applied to high salt waste water anti-pollution reverse osmosis unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222569306.1U CN220078716U (en) | 2022-09-28 | 2022-09-28 | Be applied to high salt waste water anti-pollution reverse osmosis unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220078716U true CN220078716U (en) | 2023-11-24 |
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ID=88816649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222569306.1U Active CN220078716U (en) | 2022-09-28 | 2022-09-28 | Be applied to high salt waste water anti-pollution reverse osmosis unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220078716U (en) |
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2022
- 2022-09-28 CN CN202222569306.1U patent/CN220078716U/en active Active
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