CN206203953U - A kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse device - Google Patents
A kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse device Download PDFInfo
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- CN206203953U CN206203953U CN201621033439.5U CN201621033439U CN206203953U CN 206203953 U CN206203953 U CN 206203953U CN 201621033439 U CN201621033439 U CN 201621033439U CN 206203953 U CN206203953 U CN 206203953U
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- electrodialysis
- reverse osmosis
- concentrated water
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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
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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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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse device, the treatment of concentrated water, including two-pass reverse osmosis concentrated water case, electrodialysis feed pump, electrodialysis cartridge filter and electrodialysis plant are produced for two-pass reverse osmosis in full embrane method seawater reverse osmosis permeable system；Two-pass reverse osmosis concentrated water case, electrodialysis feed pump, electrodialysis cartridge filter and electrodialysis plant are sequentially connected by pipeline valve, the fresh water output end of electrodialysis plant connects first-stage reverse osmosis and produces water tank by pipeline, and the concentrated water output end of electrodialysis plant connects ultrafiltration water tank by pipeline.
Description
Technical field
The utility model is related to Membrane seawater desalination second-level reverse osmosis device, and especially a kind of two grades of Membrane seawater desalination is anti-
Infiltration NF concentrated water reuse device, it is adaptable in full seawater desalination system by film method.
Background technology
Desalination technology is mainly used in the separation of salt and water in seawater.Method for desalting seawater used has seawater to freeze now
Connection, electroosmose process, the way of distillation, hyperfiltration.
Reached its maturity using hyperfiltration as the embrane method technology of desalinizing seawater of core among these, engineering stability reliability.Reverse osmosis
Wait membrane material, membrane component production technology ripe thoroughly, film significantly declines with the raising of membrane module performance, price, and application cost is more next
It is lower.Even full embrane method technology also applies to extra large light project more and more at present.But the light each step in embrane method sea
Producing water ratio is basicly stable constant.In order to further improve the producing water ratio of whole system, the often step of full membranous system certainly will be consumed
Water carries out sub-prime recycling.
Utility model content
The utility model purpose is：Sub-prime recycling purpose is carried out based on the often step of full membranous system is consumed into water, is proposed
A kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse device, the two-pass reverse osmosis concentrated water of full membranous system is further located
Reason, the fresh water of generation is doped into first-stage reverse osmosis and produces water, it is possible to decrease the requirement of exerting oneself of first-stage reverse osmosis.The concentrated water of generation is doped into ultrafiltration
Produce water, you can reduce the requirement of exerting oneself of ultrafiltration.By the concentrated water produced by two-pass reverse osmosis, by treatment, full embrane method is respectively enterd
Different sub-systems in.Improve whole system producing water ratio, optimization ultrafiltration and and counter-infiltration system configuration.By electrodialysis
Method is processed the concentrated water that two-pass reverse osmosis in full seawater desalination system by film method are produced, and the water after treatment carries out sub-prime recovery,
The system producing water ratio of raising, optimizes the design of whole system.
The technical solution of the utility model is：A kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse device, for complete
Two-pass reverse osmosis produce the treatment of concentrated water in embrane method seawater reverse osmosis permeable system, including two-pass reverse osmosis concentrated water case 1, electrodialysis give
Water pump 2, electrodialysis cartridge filter 3 and electrodialysis plant 4；Two-pass reverse osmosis concentrated water case 1, electrodialysis feed pump 2, electrodialysis is protected
Peace filter 3 and electrodialysis plant 4 are sequentially connected by pipeline valve, and the fresh water output end of electrodialysis plant 4 is connect by pipeline
First-stage reverse osmosis produce water tank, and the concentrated water output end of electrodialysis plant 4 connects ultrafiltration water tank by pipeline.
It is anti-that fresh water produced by final electrodialysis plant enters into the light first-stage reverse osmosis product water tank i.e. one-level in former full film sea
Infiltration fresh-water tank, produced concentrated water enters into the light ultrafiltration water tank i.e. ultrafiltration in former full film sea and produces water tank.
Electrodialysis feed pump of the present utility model is variable-frequency motor drive control, to the slow boosting of system, stabilization fortune
OK.
Cartridge filter precision is 5 μm, for retaining two-pass reverse osmosis and concentrated water case in the physical particles that may bring
Impurity.
The water outlet of electrodialysis plant, fresh water imports first-stage reverse osmosis and produces water tank, and concentrated water imports ultrafiltration water tank.So as to reach point
The effect that matter is reclaimed.
The beneficial effects of the utility model：The concentrated water of two-pass reverse osmosis, by the fresh water produced by electrodialysis, the rate of recovery can
Up to 85~90%, because salt content is low, such that it is able to import first-stage reverse osmosis water tank, so as to reduce the first-stage reverse osmosis fortune of system
Row load；The concentrated water of two-pass reverse osmosis, by the concentrated water produced by electrodialysis, because salt content is high, such that it is able to import ultrafiltration
Water tank, produce water with ultrafiltration carries out desalination into first-stage reverse osmosis in the lump；Using electrodialysis plant, two-pass reverse osmosis concentrated water is carried out
Sub-prime is reclaimed after treatment, improves the final producing water ratio of system.
Brief description of the drawings
Fig. 1 the utility model is a kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse apparatus system schematic diagram.
Specific embodiment
As illustrated, two-pass reverse osmosis concentrated water case 1, electrodialysis feed pump 2, electrodialysis cartridge filter 3, electrodialysis plant
4.PI is pressure gauge, and FT is flowmeter.
A kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse system, including the two-pass reverse osmosis concentrated water being sequentially connected
Pipeline, the valve of case, electrodialysis feed pump, electrodialysis cartridge filter, electrodialysis plant and internal system connection.By two
The reverse osmosis concentrated water tank of level collects water, and by electrodialysis feed pump, frequency conversion is slowly boosted, by 5 μm of cartridge filters of precision
Enter electrodialysis plant after retention removal physical impurity, fresh water and concentrated water are produced eventually through electrodialysis plant.Final salt content
Low fresh water enters first-stage reverse osmosis water tank, and salt content concentrated water high enters ultrafiltration water tank.
Assuming that the conductance of the light water inlet in former full embrane method sea is 40000 μ s/cm, the first-stage reverse osmosis rate of recovery 40%, one-level reverse osmosis
Saturating salt rejection rate 99%, secondary recovery rate 85%.The first-stage reverse osmosis that then system is produced produce water power and lead 400 μ s/cm, two-pass reverse osmosis
The μ s/cm of concentrated water conductance 2667.By herein after " a kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse device treatment ", electricity
The fresh-water recovery rate of dialysis is 85%, salt rejection rate 90%.The electrodialysis concentrated water conductance of final electric osmose division water is about 17780 μ s/
Cm, electrodialysis is produced fresh water conductance and is about 267 μ s/cm.
The electrical conductivity for passing through produced concentrated water and fresh water can then be sent out with the comparison of ultrafiltration product water and first-stage reverse osmosis fresh water conductance
Existing, electrodialysis concentrated water water quality is approached with ultrafiltration producing water water quality, and electrodialysis fresh water water quality is approached with first-stage reverse osmosis producing water water quality.Electricity
Dialysis concentrated water is back to ultrafiltration water tank, and electrodialysis fresh water is back to first-stage reverse osmosis water tank can reach the effect of sub-prime recovery, from whole
For the full embrane method sea of body is light, the light system producing water ratio in whole sea can be improved, improve the light economic benefit in full embrane method sea.
Those of ordinary skill in the art should be understood：The foregoing is only specific embodiment of the utility model and
, it is not limited to the utility model, it is all any modifications within spirit of the present utility model and principle, made, equivalent
Replace, improve etc., should be included within protection domain of the present utility model.
Claims (2)
1. a kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse device, it is characterised in that for full embrane method sea-water reverse osmose
Two-pass reverse osmosis produce the treatment of concentrated water in system, including two-pass reverse osmosis concentrated water case, electrodialysis feed pump, electrodialysis were ensured public security
Filter and electrodialysis plant；Two-pass reverse osmosis concentrated water case, electrodialysis feed pump, electrodialysis cartridge filter and electrodialysis plant lead to
Piping valve is sequentially connected, and the fresh water output end of electrodialysis plant connects first-stage reverse osmosis and produces water tank, electrodialysis dress by pipeline
The concentrated water output end put connects ultrafiltration water tank by pipeline；Electrodialysis feed pump drives for variable-frequency motor.
2. Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse device according to claim 1, it is characterised in that electrodialysis
Cartridge filter precision is 5 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621033439.5U CN206203953U (en) | 2016-08-30 | 2016-08-30 | A kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621033439.5U CN206203953U (en) | 2016-08-30 | 2016-08-30 | A kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse device |
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| Publication Number | Publication Date |
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| CN206203953U true CN206203953U (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621033439.5U Active CN206203953U (en) | 2016-08-30 | 2016-08-30 | A kind of Membrane seawater desalination two-pass reverse osmosis NF concentrated water reuse device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205867A (en) * | 2018-09-20 | 2019-01-15 | 哈尔滨锅炉厂有限责任公司 | Improve reverse osmosis membrane seawater desalination system and rate of recovery method |
| CN110980989A (en) * | 2019-12-12 | 2020-04-10 | 中国能源建设集团湖南省电力设计院有限公司 | Water-saving treatment system and treatment method for full-membrane-method first-stage reverse osmosis concentrated water |
-
2016
- 2016-08-30 CN CN201621033439.5U patent/CN206203953U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205867A (en) * | 2018-09-20 | 2019-01-15 | 哈尔滨锅炉厂有限责任公司 | Improve reverse osmosis membrane seawater desalination system and rate of recovery method |
| CN110980989A (en) * | 2019-12-12 | 2020-04-10 | 中国能源建设集团湖南省电力设计院有限公司 | Water-saving treatment system and treatment method for full-membrane-method first-stage reverse osmosis concentrated water |
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