CN109867329A - A kind of counter-infiltration system - Google Patents
A kind of counter-infiltration system Download PDFInfo
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- CN109867329A CN109867329A CN201711251162.2A CN201711251162A CN109867329A CN 109867329 A CN109867329 A CN 109867329A CN 201711251162 A CN201711251162 A CN 201711251162A CN 109867329 A CN109867329 A CN 109867329A
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- reverse osmosis
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Abstract
The present invention provides counter-infiltration system, it includes the feed water by reverse osmosis case 1 being sequentially connected, the intake pump 2, the cartridge filter 3, the high-pressure pump 4 and the reverse osmosis unit 6, it further include the reverse osmosis produced water tank 8 for producing the mouth of a river and being connected of the reverse osmosis concentrated water tank 7 being connected with the concentrated water spout of the reverse osmosis unit 6 and the reverse osmosis unit 6, it further includes the reverse osmosis protective device 5 between a water outlet for being connected to the high-pressure pump 4 and the water inlet of the reverse osmosis unit 6, the concentrated water spout of the reverse osmosis protective device 5 is connected with the feed water by reverse osmosis case 1.One reverse osmosis protective device of series connection, the reverse osmosis protective device filter out most of polluter and bacterium, protect subsequent reverse osmosis unit before reverse osmosis unit.
Description
Technical field
The present invention relates to wastewater treatment and waste water reuse technical field more particularly to a kind of counter-infiltration systems.
Background technique
In the operational process of reverse osmosis unit processing waste water, biological pollution, the pollution of colloidal solid object, metal oxidation are even
Some mechanical damage is often easiest to occur in the front end of reverse osmosis unit, therefore the reverse-osmosis membrane element of reverse osmosis unit front end is
The severe district occurred frequently of reverse osmosis membrane pollution.Remaining suspended matter and colloidal substance are accumulated on reverse osmosis membrane surface in feed water by reverse osmosis
It is contaminated reverse osmosis membrane, increases system pressure difference, water yield reduces, salt rejection rate decline, usually by continually cleaning
System, to restore membrane element capability as far as possible；
And giving birth to fouling feature is easily to form pollutant in counter-infiltration system front end when starting, and then expands to entire reverse osmosis
Permeable system, system can all cause bacterial micro-organism growth and breeding there are dead angle area or down time are too long, be adhered to reverse osmosis membrane
Surface forms biological mucosa, increases system operation pressure, and water yield decline, salt rejection rate slightly rose before this, then reduced, and leads to
It is often that will throw fungicide during counter-infiltration system operates normally and stops transport and sterilization treatment is carried out to it, to protect membrane module
With the stable operation of system；
So these conventional settling modes frequently result in higher maintenance cost.
Summary of the invention
In view of the above-mentioned problems, can effectively improve the reverse osmosis of reverse osmosis unit front end the purpose of the present invention is to provide a kind of
Film is contaminated and the counter-infiltration system that is damaged, can substantially reduce maintenance cost.
A kind of counter-infiltration system of the present invention comprising feed water by reverse osmosis case 1, the intake pump 2, cartridge filter being sequentially connected
3, high-pressure pump 4 and reverse osmosis unit 6, further include the reverse osmosis concentrated water tank 7 being connected with the concentrated water spout of the reverse osmosis unit 6 and with
The reverse osmosis unit 6 produces the connected reverse osmosis produced water tank 8 in the mouth of a river, further includes one being connected to the high-pressure pump 4 and described
Reverse osmosis protective device 5 between reverse osmosis unit 6, the concentrated water spout and the feed water by reverse osmosis of the reverse osmosis protective device 5
Case 1 is connected, and the water flux of the reverse osmosis protective device 5 is greater than the water flux of the reverse osmosis unit 6.
By upper, reverse osmosis protective device 5 is connected between 6 water inlet of 4 water outlet of high-pressure pump and reverse osmosis unit, reverse osmosis
Saturating protective device 5 can filter out most polluter, substantially reduce sewage pollution degree, reduce and be connected to below
Reverse osmosis unit 6 reverse osmosis membrane pollution and damage, substantially reduce the maintenance cost of reverse osmosis unit 6, and reverse osmosis
5 disassembling, assembling and replacing of protective device is all convenient.
Preferably, the reverse osmosis protective device 5 is one section of multicore membrane component, and the reverse osmosis protective device (5) is
Multi-purpose one is standby.
By upper, with one section of multicore membrane component, multi-purpose one is standby, when a damage or pollution need replacing, does not need to stop,
It does not influence to produce.
Preferably, the reverse osmosis unit (6) includes:
The one section of reverse osmosis unit 61 and two sections of reverse osmosis units 62 composed in parallel respectively by multiple reverse-osmosis membrane elements,
The water inlet parallel communication of each reverse-osmosis membrane element of one section of reverse osmosis unit 61 is to the reverse osmosis unit 6
Water inlet produces mouth of a river parallel communication to the reverse osmosis produced water tank 8, concentrated water spout parallel communication to two sections of reverse osmosis units 62
Water inlet；
The water inlet parallel communication of each reverse-osmosis membrane element of two sections of reverse osmosis units 62 is to two sections of reverse osmosis
The water inlet of saturating device 62, produces mouth of a river parallel communication to the reverse osmosis produced water tank 8, and concentrated water spout parallel communication is to described reverse osmosis
Concentrated water case 7.
Preferably, the reverse-osmosis membrane element quantity on one section of reverse osmosis unit 61 is greater than two sections of reverse osmosis units
Reverse-osmosis membrane element quantity on 62.
Preferably, the reverse-osmosis membrane element quantity in one section of reverse osmosis unit 61 is two sections of reverse osmosis units 62
In 2 times.
Compared with prior art, the present invention has the advantages that: the reverse osmosis protection dress of series connection one before reverse osmosis unit
It sets, so that the pollution of film and damage concentration occur on the film of this reverse osmosis protective device, protects subsequent reverse osmosis dress
It sets, declines reverse osmosis unit maintenance cost, and the reverse osmosis protective device structure is simple, disassembling, assembling and replacing is convenient, effectively drops
Low maintenance cost.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of counter-infiltration system.
Specific embodiment
Fig. 1 is a kind of operation schematic diagram of counter-infiltration system comprising the feed water by reverse osmosis case being sequentially connected by pipeline
1, intake pump 2, cartridge filter 3, high-pressure pump 4, reverse osmosis protective device 5 and reverse osmosis unit 6；It further include reverse osmosis concentrated water tank
7 and reverse osmosis produced water tank 8.
Feed water by reverse osmosis case 1, intake pump 2, cartridge filter 3, high-pressure pump 4 and reverse osmosis protective device 5 are previous
The import of the one next equipment of outlet connection of equipment, the i.e. import of the outlet connection intake pump 2 of feed water by reverse osmosis case 1, intake pump 2
Outlet connection cartridge filter 3 import, cartridge filter 3 outlet connection high-pressure pump 4 import, the outlet of high-pressure pump 4
Connect the import of reverse osmosis protective device 5；The sewage that feed water by reverse osmosis case 1 stores is given by pipeline and was ensured public security by intake pump 2
Filter 3, cartridge filter 3 filter out the suspended matter in sewage, and high-pressure pump 4 is by the filtered sewage pressure liter of cartridge filter 3
Height reaches the operating pressure of subsequent reverse osmosis protective device 5 and the requirement of reverse osmosis unit 6.
Reverse osmosis protective device 5 and reverse osmosis unit 6 all have a water inlet, a production mouth of a river and a concentrated water spout,
The import for producing mouth of a river connection reverse osmosis unit 6 of reverse osmosis protective device 5, concentrated water spout connect feed water by reverse osmosis case 1, i.e. reverse osmosis
The concentrated water of saturating protective device 5 returns in feed water by reverse osmosis case 1, although the reverse osmosis in reverse osmosis protective device 5 and reverse osmosis unit 6
Permeable membrane is the same, but the water flux of reverse osmosis protective device 5 is bigger than reverse osmosis unit 6, and resistance is low, the major part in sewage
Polluter first passes around reverse osmosis protective device 5 and filters out, and sewage pollution degree is greatly reduced, alleviate be connected to it is subsequent
The pollution and damage of reverse osmosis membrane on reverse osmosis unit 6, and reverse osmosis protective device 5 has 2 reverse-osmosis membrane elements, one uses
One is standby, if reverse osmosis membrane is needed repairing and replaced, need not also stop, only need switch valve that can not influence the normal of system
It repairs and replaces in the case where operation, in case of damaging, one reverse osmosis facial mask of disassembly, which also facilitates, to be easy.
Reverse osmosis unit 6 include two sections of reverse osmosis units, one section of reverse osmosis unit 61 and two sections of reverse osmosis units 62 by
Several reverse osmosis membrane assemblies compose in parallel, and the reverse-osmosis membrane element quantity in one section of reverse osmosis unit 61 is two sections of reverse osmosis units
2 times in 62, i.e. one section of reverse osmosis unit 61 is formed in parallel by four reverse-osmosis membrane elements, and two sections of reverse osmosis units 62 are by two
Reverse-osmosis membrane element is formed in parallel；
The concentrated water spout parallel connection of one section of 4 reverse osmosis membrane assemblies in parallel is combined into parallel with two of two sections after a mouth
The water inlet of reverse osmosis membrane assembly is connected, i.e., the concentrated water of one section reverse osmosis unit 61 enters two sections of 62 desalinations of reverse osmosis unit,
Improve producing water ratio；The production mouth of a river parallel connection of one section of 4 reverse-osmosis membrane elements in parallel is combined into after a mouth and reverse osmosis produced water tank 8
Import be connected, by produce water be stored in reverse osmosis produced water tank 8；
The production mouth of a river parallel connection of two sections of two reverse osmosis membrane assemblies in parallel connects after being combined into a mouth with reverse osmosis produced water tank 8
It connects, i.e., the production water of two sections reverse osmosis units 62 is stored in reverse osmosis produced water tank 8, the concentrated water of two reverse osmosis membrane assemblies in parallel
Mouth is connect after being combined into a mouth with the import of reverse osmosis concentrated water tank 7, i.e., the concentrated water of two sections reverse osmosis units 62 is stored in reverse osmosis
In concentrated water case 7.
The course of work of the reverse osmosis unit is as follows:
The pump that sewage in feed water by reverse osmosis case 1 successively passes through intake pump 2 is inhaled, cartridge filter 3 is filtered out and wherein suspended
Object reaches reverse osmosis protective device 5 and reverse osmosis dress for the boosting that reverse osmosis membrane below provides good influent quality, high-pressure pump 4
The operating pressure and desalting processing Jing Guo reverse osmosis protective device 5 and reverse osmosis unit 6 for setting 6, first pass around reverse osmosis guarantor
The reverse osmosis membrane filtration of protection unit 5 falls most of polluter and preliminary desalination, and reverse osmosis protective device 5 produces what the mouth of a river came out
It produces water and enters one section of continuation desalination of reverse osmosis unit 61, the concentrated water that the concentrated water spout of reverse osmosis protective device 5 comes out returns reverse osmosis
It penetrates into water tank 1, the production water after one section of 61 reverse osmosis deaslination of reverse osmosis unit enters the storage of reverse osmosis produced water tank 8, from one
The concentrated water that the concentrated water spout of section reverse osmosis unit 61 comes out enters two sections of reverse osmosis units 62 and continues desalination, and production water is sent into reverse osmosis
Water producing tank 8, it is temporary from the concentrated water that the concentrated water spout of two sections of reverse osmosis units 62 comes out into reverse osmosis concentrated water tank 7.
By the way that a reverse osmosis protective device 5 is arranged before reverse osmosis unit 6, make pollution and damage collection to reverse osmosis membrane
In in reverse osmosis protective device 5, reverse osmosis protective device 5 can also be multicore, and protective device 5 reverse osmosis in this way is one
Section, multicore, multi-purpose standby reverse osmosis, two reverse osmosis tandems.Water flux, which was equal in the unit time, flows through reverse osmosis
The water of permeable membrane divided by single branch membrane area again divided by the quantity of film, since 6 film quantity of reverse osmosis unit is filled greater than reverse osmosis protection
5 film quantity is set, so the water flux of reverse osmosis protective device 5 is greater than anti-in single branch membrane area, the identical situation of water flow
The water flux of permeability apparatus 6, reverse osmosis protective device 5 intercept and assume responsibility for most polluter and damage, be effectively relieved
The pollution and damage of film on reverse osmosis unit 6, reduce the cleaning frequency of reverse osmosis unit 6, that is, safeguard easier.
And the structure of reverse osmosis protective device 5 is simple, disassembly is easy, and maintenance gets up to compare reverse osmosis unit 6 more with replacement
Add conveniently, to reduce maintenance cost.In addition, the reverse osmosis protective device 5 is multi-purpose one standby, therefore in maintenance and replacement,
It need not parking.
The foregoing is merely the preferred embodiments of invention, are not intended to limit the invention, all in spirit of the invention
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
A pretreatment unit can also be increased before intake pump 2 than reverse osmosis unit as shown in figure 1, filter out reverse osmosis
The large granular impurity in the sewage in water tank 1 is penetrated into, the filtering burden of cartridge filter 3 is mitigated.
Device in Fig. 1 is primary reverse osmosis system, which may be also used in second level or more counter-infiltration system.
Claims (5)
1. a kind of counter-infiltration system comprising the feed water by reverse osmosis case (1) that is sequentially connected, intake pump (2), cartridge filter (3),
High-pressure pump (4) and reverse osmosis unit (6),
Further include the reverse osmosis concentrated water tank (7) being connected with the concentrated water spout of the reverse osmosis unit (6) and with the reverse osmosis unit
(6) produce the connected reverse osmosis produced water tank (8) in the mouth of a river, which is characterized in that further include one being connected to the high-pressure pump (4) and described
Reverse osmosis protective device (5) between reverse osmosis unit (6), the concentrated water spout and the reverse osmosis of the reverse osmosis protective device (5)
It penetrates into water tank (1) to be connected, and the water flux of the reverse osmosis protective device (5) is greater than the water flux of the reverse osmosis unit (6).
2. counter-infiltration system according to claim 1, which is characterized in that the reverse osmosis protective device (5) is more than one section
Core membrane component, and the reverse osmosis protective device (5) is multi-purpose one standby.
3. counter-infiltration system according to claim 1 or 2, which is characterized in that the reverse osmosis unit (6) includes:
The one section of reverse osmosis unit (61) and two sections of reverse osmosis units (62) composed in parallel respectively by multiple reverse osmosis membrane assemblies,
The water inlet parallel communication of each reverse osmosis membrane assembly of one section of reverse osmosis unit (61) is to the reverse osmosis unit
(6) water inlet produces mouth of a river parallel communication to the reverse osmosis produced water tank (8), concentrated water spout parallel communication to two sections of reverse osmosis
The water inlet of saturating device (62)；
The water inlet parallel communication of each reverse osmosis membrane assembly of two sections of reverse osmosis units (62) to described two sections it is reverse osmosis
The water inlet of device (62) produces mouth of a river parallel communication to the reverse osmosis produced water tank (8), concentrated water spout parallel communication to the reverse osmosis
Saturating concentrated water case (7).
4. counter-infiltration system according to claim 3, which is characterized in that
Reverse-osmosis membrane element quantity on one section of reverse osmosis unit (61) is greater than on two sections of reverse osmosis units (62)
Reverse-osmosis membrane element quantity.
5. counter-infiltration system according to claim 4, which is characterized in that
Reverse-osmosis membrane element quantity on one section of reverse osmosis unit (61) is 2 on two sections of reverse osmosis units (62)
Times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251162.2A CN109867329A (en) | 2017-12-01 | 2017-12-01 | A kind of counter-infiltration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251162.2A CN109867329A (en) | 2017-12-01 | 2017-12-01 | A kind of counter-infiltration system |
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| Publication Number | Publication Date |
|---|---|
| CN109867329A true CN109867329A (en) | 2019-06-11 |
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| CN201711251162.2A Pending CN109867329A (en) | 2017-12-01 | 2017-12-01 | A kind of counter-infiltration system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100032377A1 (en) * | 2008-06-13 | 2010-02-11 | Calvin Wade Wohlert | Apparatus and methods for solution processing using reverse osmosis |
| US20150376034A1 (en) * | 2013-02-20 | 2015-12-31 | Kurita Water Industries Ltd. | Multi-stage reverse osmosis membrane system and operation method thereof |
| CN106045098A (en) * | 2016-08-02 | 2016-10-26 | 华电水务工程有限公司 | Energy-saving type ultra-high-pressure reverse osmosis system |
| CN206624681U (en) * | 2017-03-28 | 2017-11-10 | 邯钢集团邯宝钢铁有限公司 | A kind of wastewater treatment reverse osmosis unit that can improve counter-infiltration effect |
-
2017
- 2017-12-01 CN CN201711251162.2A patent/CN109867329A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100032377A1 (en) * | 2008-06-13 | 2010-02-11 | Calvin Wade Wohlert | Apparatus and methods for solution processing using reverse osmosis |
| US20150376034A1 (en) * | 2013-02-20 | 2015-12-31 | Kurita Water Industries Ltd. | Multi-stage reverse osmosis membrane system and operation method thereof |
| CN106045098A (en) * | 2016-08-02 | 2016-10-26 | 华电水务工程有限公司 | Energy-saving type ultra-high-pressure reverse osmosis system |
| CN206624681U (en) * | 2017-03-28 | 2017-11-10 | 邯钢集团邯宝钢铁有限公司 | A kind of wastewater treatment reverse osmosis unit that can improve counter-infiltration effect |
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Application publication date: 20190611 |