CN208320501U - A kind of unpowered concentrated water high efficiente callback device of counter-infiltration system - Google Patents
A kind of unpowered concentrated water high efficiente callback device of counter-infiltration system Download PDFInfo
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- CN208320501U CN208320501U CN201820743512.0U CN201820743512U CN208320501U CN 208320501 U CN208320501 U CN 208320501U CN 201820743512 U CN201820743512 U CN 201820743512U CN 208320501 U CN208320501 U CN 208320501U
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- reverse osmosis
- putaminas
- water
- pass reverse
- putamina
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Abstract
The utility model relates to a kind of unpowered concentrated water high efficiente callback devices of counter-infiltration system, belong to metallurgy industry water process production equipment technology.Technical solution is: first-stage reverse osmosis water producing pipe (5) is connect with the entrance of two-pass reverse osmosis booster pump (1), the outlet of two-pass reverse osmosis booster pump (1) is connect by water inlet line (4) with two-pass reverse osmosis unit, alkali batch meter (3) is by adding alkali pump (2) to connect with water inlet line (4), the two-pass reverse osmosis unit includes one section of putamina (10) being sequentially connected in series, two-segment film shell (11) and three sections of putaminas (12), one section of putamina (10) is seven putaminas in parallel, two-segment film shell (11) is three putaminas in parallel, three sections of putaminas (12) are a putamina.The beneficial effects of the utility model are: the rate of recovery of each film in two-pass reverse osmosis is increased to 92%~95% by the 80% of background technique, and improves salt rejection rate to 98%, mitigate the concentration polarization degree of back segment film.
Description
Technical field
The utility model relates to a kind of unpowered concentrated water high efficiente callback devices of counter-infiltration system, belong to metallurgy industry water process
Production equipment technology.
Background technique
Reverse osmosis is a kind of by means of selecting the function through (semi-permeable) property film using pressure as the UF membrane skill of motive force
Art, when pressure added in system is greater than water inlet solution osmotic pressure, hydrone constantly penetrates film, flows by producing water flow passage
Central tube, the then impurity in outflow water at one end, such as ion, organic matter, bacterium, virus, is trapped within the influent side of film,
Then it is flowed out in concentrated water water outlet, to reach isolation of purified purpose.
Compared with other traditional separation engineerings, reverse osmosis separation process has its unique advantage: (1) pressure is reverse osmosis point
Active force from process, without the phase transformation that energy-intensive exchanges, low energy consumption；(2) it is reverse osmosis do not need a large amount of precipitating reagent and
Adsorbent, operating cost are low；(3) reverse osmosis separation engineering design and easy to operate, the construction period is short；(4) reverse osmosis purification effect
Rate is high, environmental-friendly.Therefore, reverse osmosis technology has been widely used in life and Treatment of Industrial Water, such as seawater and bitter
Desalination, medical and industrial water production, pure water and the preparation of ultrapure water, Industrial Wastewater Treatment, food processing concentration, gas point
From etc..
Industrial Wastewater Treatment is a most field of reverse osmosis technology application in addition to the preparation field of desalination and pure water.
Industrial Wastewater Treatment has reduction production cost, protects environment, realizes the multi-meanings such as waste water reclaiming.
Currently, reverse osmosis technology has been widely used for iron and steel enterprise.Including bi-membrane method post, level-one, two-pass reverse osmosis
System etc..The water source that bi-membrane method post uses effectively reduces ton steel and consumes new water for the middle water of metallurgical waste water reuse.
Reverse osmosis is using pressure difference as motive force, and solvent is under being pushed by pressure through membrane body.Reverse osmosis separation mistake
Cheng Zhong, after hydrone penetrates, salt content increases in membrane interface, forms higher concentrated water layer, the concentration of this layer and water supply water flow
Very big concentration gradient is formed, this phenomenon is known as the concentration polarization (concentration polarization) of film.Due to
Concentration polarization phenomenon increases the osmotic pressure of film two sides, and under the effect of same operating pressure, the net driving of system pressure reduction is and net
The water flux that driving is pressed into direct ratio will decline.At the same time, the salinity for increasing film two sides due to concentration polarization phenomenon is poor, with
The directly proportional flux salt of salinity difference will rise.Therefore, concentration polarization phenomenon will make counter-infiltration system water flux decline and thoroughly
Salt rate rises.
During film process, concentration polarization can make actual permeant flux and salt rejection rate lower than theoretical assessment.One
The single set rate of recovery of grade reverse osmosis unit in practical applications is 65%~70%, and single set rate of recovery of second level reverse osmosis apparatus is
80%~85%.After producing water collection inlet tank, supply user or the source water as next processing links are carried out, concentrated water carries out after collecting
Outlet.
Currently, be Tao Shi BW30LE-440 reverse-osmosis membrane element used in second level reverse osmosis apparatus, arrangement mode 8:
3, i.e. eight putaminas in parallel are concatenated with three putaminas in parallel, and the membrane component in each putamina is all made of common Tao Shi
BW30LE-440 reverse-osmosis membrane element, the second level reverse osmosis apparatus of this structure, the system rate of recovery are 80%, the system rate of recovery
It is lower with salt rejection rate.
Utility model content
The utility model aim is to provide a kind of unpowered concentrated water high efficiente callback device of counter-infiltration system, can be improved second level
The system rate of recovery and salt rejection rate in reverse osmosis is low, solves the problems, such as background technique.
The technical solution of the utility model is:
A kind of unpowered concentrated water high efficiente callback device of counter-infiltration system includes two-pass reverse osmosis booster pump plus alkali pump, alkali meter
Measuring tank, water inlet line, first-stage reverse osmosis water producing pipe and two-pass reverse osmosis unit, first-stage reverse osmosis water producing pipe and two-pass reverse osmosis increase
The entrance of press pump connects, and the outlet of two-pass reverse osmosis booster pump is connect by water inlet line with two-pass reverse osmosis unit, alkali metering
For case by adding alkali pump to connect with water inlet line, the two-pass reverse osmosis unit includes one section of putamina, the two-segment film shell being sequentially connected in series
With three sections of putaminas, one section of putamina is seven putaminas in parallel, and two-segment film shell is three putaminas in parallel, and three sections of putaminas are one
Branch putamina.
Each putamina in one section of putamina, two-segment film shell and three sections of putaminas is respectively arranged with six membrane components.
The membrane component is Tao Shi BW30LE-440 membrane component.
Using the utility model, first-stage reverse osmosis produces source water of the water as two-pass reverse osmosis, and source water passes through and second level reverse osmosis
It is initially entered after saturating booster pump in one section of in parallel seven putamina in two-pass reverse osmosis unit, the concentrated water of one section of putamina is as two
The water inlet of three putaminas of Duan Binglian, the water inlet of concentrated water three sections of putaminas of work of two-segment film shell, the concentrated water discharge of third section, the
One section of production water to third section is all collected, and is delivered in two-pass reverse osmosis water producing tank by water producing pipe.
The beneficial effects of the utility model are: the system rate of recovery in two-pass reverse osmosis is increased to by the 80% of background technique
92%~95%, and salt rejection rate is improved to 98%, mitigate the concentration polarization degree of back segment film, while providing for follow-up equipment mixed bed
More good desalted water.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
In figure: two-pass reverse osmosis booster pump 1, plus alkali pump 2, alkali batch meter 3, water inlet line 4, first-stage reverse osmosis water producing pipe 5,
11, three sections of one section of putamina 10, two-segment film shell putaminas 12.
Specific embodiment
Below in conjunction with attached drawing, by example, the utility model is described in further detail.
Referring to attached drawing 1, a kind of unpowered concentrated water high efficiente callback device of counter-infiltration system, comprising two-pass reverse osmosis booster pump 1,
Add alkali pump 2, alkali batch meter 3, water inlet line 4, first-stage reverse osmosis water producing pipe 5 and two-pass reverse osmosis unit, first-stage reverse osmosis produces water
Pipe 5 is connect with the entrance of two-pass reverse osmosis booster pump 1, and the outlet of two-pass reverse osmosis booster pump 1 is anti-by water inlet line 4 and second level
Permeation unit connection, for alkali batch meter 3 by adding alkali pump 2 to connect with water inlet line 4, the two-pass reverse osmosis unit includes successively to go here and there
One section of putamina 10, two-segment film shell 11 and the three sections of putaminas 12 connect, one section of putamina 10 are seven putaminas in parallel, two-segment film shell
11 be three putaminas in parallel, and three sections of putaminas 12 are a putamina.
The method for preventing concentration polarization is exactly the water flux and the control rate of recovery of strict control film.Excessively high water flux design
Making pollution level, exponentially variation tendency rises, the rapids of water when higher transverse flow speed design can then increase membranous system operation
Process degree deposits to reduce particle in film surface.Reverse osmosis operation has to be contaminated, but good reverse osmosis
System can complete good itself clean process while operating normally in the process of running.Effective control pollution speed
In, select suitable water flux and transverse flow speed very crucial.
The perfect condition of counter-infiltration system operation is exactly that water is washed by film surface salt and takes away, and realizes this process
Necessary condition be exactly flow velocity.The flow of inlet water of 8 cun of films is 11.8~16.5m3/ h, for 8 inch spiral wound film manufacturing firms pair
It is required that flow velocity is not less than 0.1m/s.Another method for reducing concentration polarization is exactly the turbulent flow for increasing concentrated water channel, minimum concentrated stream
Amount is 3.6~4.1m3/ h, rule of thumb flow is not less than 4.0m3/h.So when concentrated water flow is less than 4m3It will be generated when/h
Concentration polarization phenomenon.
In the present embodiment, each putamina in one section of putamina 10, two-segment film shell 11 and three sections of putaminas 12 is respectively arranged with six
Branch membrane component, membrane component are Tao Shi BW30LE-440 membrane component, totally 66 membrane components.Membrane component is arranged as 7:3:1, three sections of rows
Column, then two sections of concentrated water is intake as three sections of putaminas, and the concentrated water flow of three sections of putaminas is 4.36 m3/ h is greater than 4 m3/ h will not be produced
Raw concentration polarization.
The course of work of the utility model is as follows:
After first-stage reverse osmosis produces water by the pressurization of two-pass reverse osmosis booster pump, simultaneously into one section in two-pass reverse osmosis unit
In seven putaminas of connection, the water inlet of the concentrated water of first segment as three putaminas of second segment parallel connection, the concentrated water of second segment is as the
The water inlet of three sections of putaminas, unified outlet after the concentrated water discharge to trench of third section, the production water of first segment to third section are whole
It collects, two-pass reverse osmosis water producing tank is delivered to by water producing pipe.
Two-pass reverse osmosis water inlet need to add liquid alkaline.Two-pass reverse osmosis adds alkali pump when two-pass reverse osmosis is switched on and rinses while opening
Dynamic, two-pass reverse osmosis, which shuts down to rinse, to be terminated, and after two-pass reverse osmosis is pressurized pump shutdown, two-pass reverse osmosis adds alkali pump to stop dosing, is stopped
Fortune.
Claims (3)
1. a kind of unpowered concentrated water high efficiente callback device of counter-infiltration system, it is characterised in that comprising two-pass reverse osmosis booster pump (1),
Add alkali pump (2), alkali batch meter (3), water inlet line (4), first-stage reverse osmosis water producing pipe (5) and two-pass reverse osmosis unit, level-one anti-
Infiltration water producing pipe (5) is connect with the entrance of two-pass reverse osmosis booster pump (1), the outlet of two-pass reverse osmosis booster pump (1) by into
Waterpipe (4) is connect with two-pass reverse osmosis unit, and alkali batch meter (3) is described by adding alkali pump (2) to connect with water inlet line (4)
Two-pass reverse osmosis unit includes the one section of putamina (10), two-segment film shell (11) and the three sections of putaminas (12) that are sequentially connected in series, and described one section
Putamina (10) is seven putaminas in parallel, and two-segment film shell (11) is three putaminas in parallel, and three sections of putaminas (12) are a putamina.
2. the unpowered concentrated water high efficiente callback device of a kind of counter-infiltration system according to claim 1, it is characterised in that described
Each putamina in one section of putamina (10), two-segment film shell (11) and three sections of putaminas (12) is respectively arranged with six membrane components.
3. the unpowered concentrated water high efficiente callback device of a kind of counter-infiltration system according to claim 2, it is characterised in that described
Membrane component is Tao Shi BW30LE-440 membrane component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820743512.0U CN208320501U (en) | 2018-05-18 | 2018-05-18 | A kind of unpowered concentrated water high efficiente callback device of counter-infiltration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820743512.0U CN208320501U (en) | 2018-05-18 | 2018-05-18 | A kind of unpowered concentrated water high efficiente callback device of counter-infiltration system |
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| Publication Number | Publication Date |
|---|---|
| CN208320501U true CN208320501U (en) | 2019-01-04 |
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| CN201820743512.0U Expired - Fee Related CN208320501U (en) | 2018-05-18 | 2018-05-18 | A kind of unpowered concentrated water high efficiente callback device of counter-infiltration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873831A (en) * | 2021-02-05 | 2022-08-09 | 三达膜科技（厦门）有限公司 | Method for recovering rare earth in water extracted from rare earth tailings |
-
2018
- 2018-05-18 CN CN201820743512.0U patent/CN208320501U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873831A (en) * | 2021-02-05 | 2022-08-09 | 三达膜科技（厦门）有限公司 | Method for recovering rare earth in water extracted from rare earth tailings |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20210518 |
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| CF01 | Termination of patent right due to non-payment of annual fee |