CN205687675U - Reverse osmosis membrane brackish water desalination system - Google Patents
Reverse osmosis membrane brackish water desalination system Download PDFInfo
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- CN205687675U CN205687675U CN201620605985.5U CN201620605985U CN205687675U CN 205687675 U CN205687675 U CN 205687675U CN 201620605985 U CN201620605985 U CN 201620605985U CN 205687675 U CN205687675 U CN 205687675U
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- Prior art keywords
- reverse osmosis
- water
- osmosis module
- module
- desalination system
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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
This utility model relates to water treatment facilities, particularly relates to a kind of reverse osmosis membrane brackish water desalination system.Including the pretreatment unit being connected with water inlet pipe, the output of pretreatment unit connects reverse osmosis module input, and reverse osmosis module is output as water purification；Described reverse osmosis module includes at least two steps ro assembly being sequentially connected in series and being provided by high-pressure pump power source, the condensed water not passed through in reverse osmosis modules at different levels is through return pipe, circulating pump connection reverse osmosis module pumping input, return pipe is connected by pipeline regulator, and regulator, high-pressure pump and circulating pump electrically connect with control device respectively.This utility model solves water treatment efficiency that prior art exists and the problem such as processed water reclamation rate is low.There is the advantages such as water treatment efficiency and processed water reclamation rate are high, facilitate implementation centralized Control, reverse osmosis membrane is not easily blocked.
Description
Technical field
This utility model relates to water treatment facilities, particularly relates to a kind of reverse osmosis membrane brackish water desalination system.
Background technology
Although data display earth water resource is enriched, but available fresh water only accounts for about 2%, groundwater resources bitter
Accounting reaches more than 50%, and additionally the problem such as surface fresh water skewness seriously governs productive life and Region homogenization development.Bitter
Desalination uses problem to have for the vast coastal remote districts of solution China, residential area, island, western desert region fresh water
Significance.
The method of brackish water desalination at present mainly has: distillation, electrodialysis, reverse osmosis membrane processing etc., wherein reverse osmosis membrane skill
Art compared to other techniques, have, high efficiency simple without phase-state change, normal-temperature operation, equipment, occupation of land less, easy to operate, energy
The advantage such as consume less, wide accommodation, automaticity be high and effluent characteristics is good, have become as the first-selection side of brackish water desalination
Method.
Anti-penetration wastewater disposal be the separation process utilizing reverse osmosis membrane technology to reach purifying water quality, i.e. utilize semi-transparent
Film only allow water purification by and retain the character of dissolved solid, with the permeable pressure head of film both sides as motive force, after making pretreatment
Water enter weak solution side from concentrated solution side through semipermeable membrane thus realize concentrated solution side solute and solvent carries out the film mistake that separates
Journey.Conventional bitter hyperfiltration technique is: former water → pretreatment system → high-pressure hydraulic pump → reverse osmosis membrane assembly → purification water.
Carry out at present a large amount of membrane technology both at home and abroad and processed bitter research, although achieve certain effect, but existing hardship
Salt water processing means there is problems in that one is that the system response rate is low, generally 40%-75% (such as Application No.
201410181808.4 patent documentation disclosed in a kind of method for desalting brackish water and device)；Two is that water treatment efficiency is low；
Three is the easy contamination and plugging of reverse osmosis membrane.Therefore still await improving in terms of the system response rate, treatment effect or economic benefit
And improvement.
The patent documentation of Application No. 201410181808.4 discloses a kind of method for desalting brackish water and device thereof.Bag
Include the steps such as cleaning filtration treatment, hyperfiltration treatment, pressurized treatment, desalination by reverse osmosis process, reverse osmosis concentrated water nanofiltration sofening treatment.
The patent documentation of Application No. 201610090586.4 discloses haline water processing means, includes antisludging equipment, bitter successively
Film processor, kill livestock every bacterium processor, reverse osmosis membrane processing device.Although it is light that both the above invention solves existing embrane method bitter
Changing a large amount of interpolation chemical agent problem, but equipment is complicated, economic advantages are inconspicuous.
The patent documentation of Application No. 201510278205.0 discloses a kind of sewage-treatment plant applying membrane technology,
This device proposes the first membrane module, the second membrane module and tertiary membrane assembly and connects, the thinking that membrane module filtering accuracy increases step by step,
The front side of each membrane module arranges a return duct, and return duct arranges electric-controlled switch valve, it is achieved that backflow is collected automatically again
The function utilized, improves conversion ratio.But only before first group of membrane module, add high-pressure pump, do not ensure that second group of membrane module
With the 3rd group of membrane module water inlet end pressure.
Japan is one of country of water resource anxiety, and technique of desalinating saline water development is very fast and correlational study report is more,
Desalination system as disclosed in Application No. 2014-139539 and Application No. 2016-16344, it is disclosed that one
Application membrane technology desalination system, this system it is also proposed the mode adding high-pressure pump raising intake pressure at water inlet end, improves
Water treatment efficiency, but only it is provided with single stage membrane assembly, the response rate is difficult to ensure that.It addition, the power recovery that above-mentioned document proposes
Device, although propose energy-conservation thinking, but be built upon increasing on pump power basis, the most energy-conservation effective way.
Utility model content
The purpose of this utility model is to provide a kind of reverse osmosis membrane brackish water desalination system, by use centralized Control,
The technological means such as staged care, reach the raising system response rate, the purpose of increase water treatment efficiency.
Overall technology of the present utility model design is:
Reverse osmosis membrane brackish water desalination system, including the pretreatment unit being connected with water inlet pipe, the output of pretreatment unit
Connecting reverse osmosis module input, reverse osmosis module is output as water purification；Described reverse osmosis module include being sequentially connected in series and by
High-pressure pump provide power source at least two steps ro assembly, the condensed water not passed through in reverse osmosis modules at different levels through return pipe,
Circulating pump connection reverse osmosis module pumping input, return pipe is connected by pipeline a regulator, regulator, high-pressure pump and
Circulating pump electrically connects with control device respectively.
Because regulator, reverse osmosis module belong to prior art, applicant at this no longer to its structure and working principle
Repeat.
Concrete technology of the present utility model design also has:
For ease of filtering subtitle substance (such as small quartz sand, activated carbon granule etc.), with guarantee water filtration precision and
Reverse osmosis membrane apparatus element is not damaged by large particulate matter.Preferably technical implementation way is, described pretreatment unit with
It is communicated with cartridge filter on water inlet pipe between the pumping input of reverse osmosis module.
Being gradually increased through circulating pump circulation rear impurity density because not passing through the condensed water of reverse osmosis unit, reverse osmosis unit enters
Water end (W.E.) and water side pressure reduction are gradually higher than pressure reduction set in advance.For preventing the blocking of reverse osmosis membrane, it is simple to be readily able to blocking
Condensed water is discharged, and preferred technical implementation way is, described return pipe is connected by condensed water outlet pipe regulator.
For ease of improving the water inlet end pressure of reverse osmosis unit, form High Pressure Difference, improve water treatment efficiency.Preferably technology
Being achieved in that, described reverse osmosis module includes the three grades of reverse osmosis modules being sequentially connected in series, and its composition includes by the first high pressure
Pump and the first order reverse osmosis module of the first reverse osmosis unit composition, the be made up of the second high-pressure pump and the second reverse osmosis unit
Two-pass reverse osmosis assembly, the third level reverse osmosis module being made up of the 3rd high-pressure hydraulic pump and the 3rd reverse osmosis unit.
Smooth and easy for ease of ensureing the material conveying between reverse osmosis units at different levels, preferred technical implementation way is, described
Reverse osmosis modules at different levels between connected by inter-stage feedwater piping.
Operation principle of the present utility model is as follows:
Processed water first passes around pretreatment unit, cartridge filter carries out early stage pretreatment.Main processes is many
Level reverse-osmosis circulating processes: processed water and condensed water enter reverse osmosis treatment device through high-pressure pump, circulating pump, through multistage instead
Infiltration processing means is separated into water purification and condensed water, and condensed water selectivity under regulator effect enters recirculation or directly arranges
Go out.
Technological progress acquired by this utility model is:
1, this utility model improves reverse osmosis unit in-out end pressure reduction by arranging high-pressure pump, to improve water treatment efficiency.
2, arrange circulation pump structure by employing to design, can be by condensed water circular treatment, to improve processed water reuse
Rate.
3, high-pressure pump pressure adjustable, it is simple to controlled the in-out end hydraulic pressure of reverse osmosis unit by pressure regulation pump, it is ensured that place
Reason efficiency, controls Concentrate flow, prevents reverse osmosis membrane from blocking.
4, control system can be by controlling high-pressure pump, circulating pump and regulator, it is achieved the optimum conjunction in each working cell
Reason is run.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Reference in accompanying drawing is as follows:
1, water inlet pipe；2, pretreatment unit；3, device is controlled；4, cartridge filter；5, circulating pump；6, the first high-pressure pump；
7, return pipe；8, the first reverse osmosis unit；9, inter-stage feedwater piping；10, the second high-pressure pump；11, the second reverse osmosis unit；12、
Regulator；13, the 3rd high-pressure pump；14, the 3rd reverse osmosis unit；15, condensed water outlet pipe.
Detailed description of the invention
Accompanying drawing gives embodiment of the present utility model, does embodiment of the present utility model further below in conjunction with accompanying drawing
Describe, but should not be construed as restriction of the present utility model, the content that protection domain of the present utility model is recorded with claim
It is as the criterion, any according to the equivalent technical elements replacement done by description, all without departing from protection domain of the present utility model.
The overall technology of the present embodiment constructs as shown, including the pretreatment unit 2 being connected with water inlet pipe 1, locates in advance
The output of reason device 2 connects reverse osmosis module input, and reverse osmosis module is output as water purification；Described reverse osmosis module includes
It is sequentially connected in series and is provided by high-pressure pump at least two steps ro assembly of power source, the concentration not passed through in reverse osmosis units at different levels
Water connects reverse osmosis module pumping input through return pipe 7, circulating pump 5, and return pipe 7 is connected by pipeline regulator 12,
Regulator 12, high-pressure pump and circulating pump 5 electrically connect with control device 3 respectively.
It is communicated with on water inlet pipe 1 between the pumping input of described pretreatment unit 2 and reverse osmosis module and ensured public security
Filter 4.
Described return pipe 7 is connected by condensed water outlet pipe 15 regulator 12.
Described reverse osmosis module includes the three grades of reverse osmosis modules being sequentially connected in series, and its composition includes by the first high-pressure pump 6
And first reverse osmosis unit 8 composition first order reverse osmosis module, be made up of the second high-pressure pump 10 and the second reverse osmosis unit 11
Second level reverse osmosis module, the third level reverse osmosis module being made up of the 3rd high-pressure hydraulic pump 13 and the 3rd reverse osmosis unit 14.
Connected by inter-stage feedwater piping 9 between described reverse osmosis modules at different levels.
Claims (5)
1. reverse osmosis membrane brackish water desalination system, including the pretreatment unit (2) being connected with water inlet pipe (1), pretreatment unit (2)
Output connect reverse osmosis module input, reverse osmosis module is output as water purification；It is characterized in that described reverse osmosis module
Including being sequentially connected in series and by least two steps ro assembly of high-pressure pump offer power source, reverse osmosis units at different levels not passing through
Condensed water is through return pipe (7), circulating pump (5) connection reverse osmosis module pumping input, and return pipe (7) is connected by pipeline tune
Pressure device (12), regulator (12), high-pressure pump and circulating pump (5) electrically connect with control device (3) respectively.
Reverse osmosis membrane brackish water desalination system the most according to claim 1, it is characterised in that described pretreatment unit (2)
And it is communicated with cartridge filter (4) on the water inlet pipe (1) between the pumping input of reverse osmosis module.
Reverse osmosis membrane brackish water desalination system the most according to claim 1, it is characterised in that described return pipe (7) passes through
Condensed water outlet pipe (15) connects regulator (12).
Reverse osmosis membrane brackish water desalination system the most according to claim 1, it is characterised in that described reverse osmosis module bag
Including the three grades of reverse osmosis modules being sequentially connected in series, its composition includes being made up of the first high-pressure pump (6) and the first reverse osmosis unit (8)
First order reverse osmosis module, the second level reverse osmosis module being made up of the second high-pressure pump (10) and the second reverse osmosis unit (11),
The third level reverse osmosis module being made up of the 3rd high-pressure hydraulic pump (13) and the 3rd reverse osmosis unit (14).
5. according to the reverse osmosis membrane brackish water desalination system according to any one of claim 1 or 4, it is characterised in that described is each
Connected by inter-stage feedwater piping (9) between level reverse osmosis module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620605985.5U CN205687675U (en) | 2016-06-20 | 2016-06-20 | Reverse osmosis membrane brackish water desalination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620605985.5U CN205687675U (en) | 2016-06-20 | 2016-06-20 | Reverse osmosis membrane brackish water desalination system |
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| Publication Number | Publication Date |
|---|---|
| CN205687675U true CN205687675U (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620605985.5U Active CN205687675U (en) | 2016-06-20 | 2016-06-20 | Reverse osmosis membrane brackish water desalination system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526340A (en) * | 2019-09-25 | 2019-12-03 | 中国船舶重工集团公司第七一九研究所 | Reverse osmosis seawater desalination system peculiar to vessel |
-
2016
- 2016-06-20 CN CN201620605985.5U patent/CN205687675U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526340A (en) * | 2019-09-25 | 2019-12-03 | 中国船舶重工集团公司第七一九研究所 | Reverse osmosis seawater desalination system peculiar to vessel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 050031 4th floor, Taihong building, 162 Huai'an East Road, Yuhua District, Shijiazhuang City, Hebei Province Patentee after: Hebei Yuehai Water Group Co.,Ltd. Address before: 050031 Jiacheng environmental protection Co., Ltd. from the monitoring room of the property department on the first floor to the fourth floor of Taihong building, No. 162 Huai'an East Road, Shijiazhuang City, Hebei Province Patentee before: JIACHENG ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. |